TWI756749B - Child carrier - Google Patents

Abstract

The present invention discloses a child carrier including a frame and wheels provided on the frame. The wheels include a first and a second wheel, the first wheel being rotatable relative to the frame. The child carrier further includes a second wheel rotary part, a second wheel latch, and an operating part. The second wheel and the second wheel rotary part are pivotally connected with each other, the second wheel rotary part is pivotally connected with the frame, the second wheel latch has a locking position and an unlocking position relative to the second wheel rotary part. The second wheel latch unlocks the second wheel rotary part for rotation of the second wheel relative to the frame, and the second wheel latch locks the second wheel rotary part to fix the direction of the second wheel relative to the frame. The operating part is provided on the frame, and is operable to cause the second wheel latch to switch from the locking position to the unlocking position. When a turnaround or transversal displacement is needed in a limited space, the operating part is operated to cause switching of the second wheel latch from the locking position to the unlocking position, thereby allowing rotation of the first and second wheels.

Description

children's vehicle

The present invention relates to the technical field of infant products, and more particularly to a child carrier.

Children's vehicles are convenient for parents to take their children to travel. They use wheels to walk on the road, freeing their hands. Strollers are a common children's vehicle. Various types of strollers can be seen everywhere. Two wheels, in order to facilitate steering and walking, the first wheel is generally set to 360-degree free rotation, and the second wheel is set to walk in the front and rear directions, which is convenient to control when walking. However, when it is necessary to turn around or move laterally in a narrow space, the stroller needs to be moved several times before it can be realized, and the operation is inflexible. In addition, if the rider has a rearward position and a forward position relative to the frame body, the transition of the rider between the rearward and forward positions is generally used to achieve directional movement with the wheel on the same side as the rider in the locked position, and the other The wheels on the side are in the unlocked position and can be rotated 360 degrees (that is, rotated). Similarly, when the baby carriage needs to be rotated or moved laterally in a narrow space, the stroller needs to be moved several times before it can be realized, and the operation is not flexible.

Therefore, it is necessary to provide a child carrier that can move flexibly in a small space or needs a short lateral movement capability to solve the above-mentioned shortcomings of the prior art.

An object of the present invention is to provide a child carrier that can move flexibly in a small space or that requires a short lateral movement capability.

In order to achieve the above purpose, the present invention provides a child carrier, which includes a frame and a wheel arranged on the frame, the wheel includes a first wheel and a second wheel, the first wheel is rotatable relative to the frame, and also includes a second wheel that rotates. part, a second wheel locking part and an operating part, wherein the second wheel is pivotally connected to the second wheel rotating part, the second wheel rotating part is pivotally connected to the frame, and the second wheel locking part has a locking position relative to the second wheel rotating part and the unlocking position, the second wheel locking part releases the second wheel rotation part to realize the rotation of the second wheel rotation part relative to the frame; the second wheel locking part locks the second wheel rotation part to realize the second wheel relative to the frame Directional movement; the operating part is arranged on the frame, and the operating part is operated to realize that the second wheel locking part changes from the locking position to the unlocking position.

Compared with the prior art, in the child carrier of the present invention, the first wheel is rotatable relative to the frame, and the second wheel can be rotated relative to the frame by using the second wheel locking portion to release the rotation portion of the second wheel. When encountering a narrow space and need to turn around or need to move laterally, the operation part is operated to realize that the second wheel locking part is changed from the locked position to the unlocked position, and the second wheel is rotated relative to the frame, so as to realize the first wheel and the second wheel. Both wheels can be rotated relative to the frame to achieve flexible movement in a narrow space or short lateral movement.

Preferably, it also includes a second-wheel reset member matched with the second-wheel locking portion, and the second-wheel reset member constantly moves the second-wheel locking portion toward the locking position.

Preferably, the second wheel locking portion is movably arranged between the second wheel rotating portion and the frame, the second wheel rotating portion is provided with a second wheel positioning groove, and the second wheel locking portion is inserted into the second wheel positioning groove for locking, restricting the rotation of the second wheel rotating part relative to the frame; the second wheel locking part is released from the second wheel positioning groove, and the second wheel rotating part can rotate relative to the vehicle frame.

Preferably, the operating portion is pressed against the second wheel locking portion, and the operating portion is operated to directly push the second wheel locking portion, so that the second wheel locking portion is transformed from the locking position to the unlocking position.

Preferably, it also includes a linkage mechanism, the linkage mechanism is arranged on the frame, and the operating portion is operated to drive the linkage mechanism to realize the transition of the second wheel locking portion from the locking position to the unlocking position.

Preferably, the linkage mechanism includes a second wheel traction part, one end of the second wheel traction part is connected to the operation part, the other end of the second wheel traction part is connected to the second wheel locking part, the operation part is applied with external force, The traction part drives the locking part of the second wheel to release the lock.

Preferably, the linkage mechanism includes a driving part and a second-wheel traction part, one end of the second-wheel traction part is connected to one side of the driving part, the other end of the second-wheel traction part is connected to the second-wheel locking part, and an external force is applied to the operation part. The driving part is driven to move, and the traction part of the second wheel is linked to drive the locking part of the second wheel to release the lock.

Preferably, the driving part includes a driving part, a driving pin abutting against the driving part, and an operating traction part; The other end of the part is connected to the driving pin, the operating part drives the driving pin to move by operating the traction part, and the driving pin drives the driving part to move to release the second wheel locking part.

Preferably, the linkage mechanism further includes a second guide member, the second guide member is slidably arranged in the frame body, and the second guide member is connected with the traction part of the second wheel.

Preferably, the traction part of the second wheel includes a traction-pulling part and a traction-pulling part, one end of the traction-pulling part is connected with the driving part, the other end of the traction-pulling part is connected with the second guide, One end is connected with the second guide part, and the other end of the two pulling and pulling parts is connected with the second wheel locking part.

Preferably, it also includes a second guide reset piece, the second guide reset piece is arranged between the second guide piece and the frame body, and the second guide reset piece is used to reset the second guide piece.

Preferably, the vehicle frame includes a vehicle frame body and a rider pivotally connected to the vehicle frame body, and the child carrier further includes a first wheel rotating portion and a first wheel locking portion, the first wheel is pivotally connected to the first wheel rotating portion, and the first wheel is pivotally connected to the first wheel rotating portion. The one-wheel rotating part and the second-wheel rotating part are respectively pivoted to the bottom of the frame body, the first-wheel locking part has a locking position and a locking-releasing position relative to the first-wheel rotating part, and the first-wheel locking part is opposite to the first-wheel rotating part. Release the lock to realize the rotation of the first wheel relative to the frame; the first wheel locking part locks the rotation part of the first wheel to realize the directional movement of the first wheel relative to the frame.

Preferably, the rider has a rearward position and a forward position with respect to the frame body, and the transition of the rider between the rearward position and the forward position is used to realize the directional movement of the wheels on the same side as the rider relative to the frame body, and The wheel on the other side rotates relative to the frame body.

Preferably, the linkage mechanism includes a driving part, a second wheel traction part and a first wheel traction part, one end of the second wheel traction part is connected to one side of the driving part, and the other end of the second wheel traction part is connected to the second wheel locking part. One end of the traction part of the first wheel is connected to the other side of the driving part, the other end of the traction part of the first wheel is connected to the locking part of the first wheel, the operation part is connected with the driving part, and the operating part is driven by an external force to drive the driving part to move, which is linked to the first wheel. The traction part of the second wheel and the traction part of the first wheel drive the locking part of the second wheel or the locking part of the first wheel to release the lock.

Preferably, when the driver is in the backward position, the first wheel locking part is in the unlocking position, the second wheel locking part is in the locking position, and the operating part drives the driving part to drive the second wheel traction part to drive the second wheel locking part to release. The lock keeps the first wheel and the second wheel rotatable relative to the frame body; when the rider is in the forward position, the first wheel locking part is in the locking position, the second wheel locking part is in the unlocking position, and the driving part is driven by the operating part The traction part of the first wheel is driven to drive the locking part of the first wheel to release the lock, so that both the first wheel and the second wheel can rotate relative to the frame body.

Preferably, the driving part includes a driving member, a driving pin abutting the driving member, and an operating traction portion, one end of the operating traction portion is connected to the operating portion, the other end of the operating traction portion is connected to the driving pin, and the operating portion is driven by the operating traction portion. The pin moves, and the driving pin drives the driving member to move to release the second wheel locking portion or the first wheel locking portion.

Preferably, the driving member is provided with a first through hole and a second through hole at a certain distance, one end of the traction part of the first wheel is connected to the first through hole, and one end of the traction part of the second wheel is connected to the second through hole; when the driver is in the rearward position , the first perforation and the second perforation are located in the first position, the operating part drives the driving pin to move by operating the traction part, and the driving pin drives the driving member to rotate so that the first perforation and the second perforation are located in the second position, and the first wheel pulls When the driver is in the forward position, the first perforation and the second perforation are in the third position, and the operating part drives the driving pin to move by operating the traction part , the driving pin drives the driving member to rotate so that the first perforation and the second perforation are located at the fourth position, and the traction part of the first wheel and the traction part of the second wheel move a certain distance, so that the locking part of the first wheel is unlocked.

Preferably, it also includes a conversion part and a first pulling part, the first pulling part is connected to the conversion part, one end of the first pulling part is fixedly connected to the first wheel locking part, and the other end of the first pulling part is fixedly connected to the first wheel locking part. The second wheel locking part, the driver switches between the rearward position and the forward position, drives the conversion part to move, and moves the first pulling member to realize the directional movement of the wheel on the same side as the driver relative to the frame body, while the other side The wheels rotate relative to the frame body.

Preferably, it also includes a conversion part and a first pulling member, the conversion part is installed between the driver and the frame body, the conversion part is connected to the first pulling member, and the first end of the first pulling member is fixedly connected to the first pulling member. a wheel locking part, the second end of the first pulling member is fixedly connected to the second wheel locking part, and the rider is in the rearward position The switch between the forward position and the forward position drives the conversion part to move, and the first pulling member moves to realize the directional movement of the wheel on the same side as the driver relative to the frame body, while the wheel on the other side rotates relative to the frame body.

Preferably, the conversion part includes a rotating body and a fixing pin, the rotating body has a first rotating position and a second rotating position, and is provided with a groove for installing the fixing pin, and the fixing pin is connected and fixed between the first end and the second end. The first pulling member of the driver switches between the backward position and the forward position, and drives the rotating body to switch between the first rotating position and the second rotating position.

Preferably, the linkage mechanism includes an operation pulling part, the operation pulling part has one connecting end, two connecting ends and three connecting ends, one connecting end is connected to the operating part, the second connecting end is fixedly connected with the first end of the first pulling member, and the connecting third The end is fixedly connected with the second end of the first pulling member.

Preferably, the linkage mechanism includes an operating traction portion, the operating traction portion has one connecting end, two connecting ends, and three connecting ends, one connecting end is connected to the operating portion, the second connecting end is fixedly connected to the first wheel locking portion, and the third connecting end is connected to the first wheel locking portion. The two-wheel locking part is fixedly connected.

Preferably, the linkage mechanism further includes a first connector and a second connector, and the first end of the first pulling member and/or the connecting two ends of the operating pulling portion are fixed to the first wheel locking portion through the first connector. Connection; the second end of the first pulling member and/or the third connecting end of the operating pulling portion are fixedly connected with the second wheel locking portion through the second connecting member.

Preferably, the operation pulling part includes a third pulling member and a fourth pulling member, the third pulling member has one end connected and the fourth connecting end, the fourth pulling member has the second connecting end and the third connecting end, and the fourth pulling member is connected with the fourth pulling member. The connection is fixed and the connection is located between the second connection end and the connection third end.

Preferably, the linkage mechanism further includes a connecting body and a rotating body, the connecting body has a rotating space, the rotating body is located in the rotating space and is pivotally connected to the connecting body, the four connecting ends are fixedly connected with the connecting body, and the fourth pulling member passes through the rotating body. The connecting body can be pulled by the rotating body.

Preferably, the operation part includes a button part and a push part connected with the button part, the connecting end of the operation traction part is connected with the push part, and the button part is operated to drive the push part to move, so as to pull the operation traction part to release the wheel in the locked position. locked and in the unlocked position.

Preferably, the child carrier also includes a first-wheel reset member and a second-wheel reset member, the first-wheel reset member cooperates with the first-wheel locking portion, and the first-wheel reset member constantly makes the second-wheel locking portion face the direction of the locking position. Movement, the second-wheel reset part cooperates with the second-wheel reset part and the second-wheel reset part, and the second-wheel reset part constantly makes the second-wheel reset part move toward the locking position direction.

Preferably, the child carrier includes a conversion part and a first pulling member, the conversion part is installed between the rider and the frame body, the conversion part has a first rotation position and a second rotation position, and one end of the first pulling member is connected to the first wheel. The locking part is connected, the middle part of the first pulling member is wound around the locking part of the second wheel, the other end of the first pulling member is connected with the conversion part, and the driver rotates and drives the conversion part from the first rotation position and the second rotation position switch between the two to drive the first pulling member to move, so that one of the first wheel locking part and the second wheel locking part is in the unlocking position, and the other one of the first wheel locking part and the second wheel locking part is in the unlocking position. Lock position.

Preferably, the restoring force of the second-round restoring member is greater than the restoring force of the first-round restoring member.

Preferably, the conversion part includes a rotating body, the rotating body is provided with a first rotating convex part and a second rotating convex part, the frame is provided with a rotating groove, and the rotating groove is provided with a first limiting part and a second limiting part, and the rotation The body is located in the rotating groove and is pivotally connected with the frame, the first limiting part is located in the interval between the first rotating convex part and the second rotating convex part, and the second limiting part is located in the first rotating convex part and the second rotating convex part in the other side of the section.

Preferably, the child carrier includes a first pulling member, a conversion portion and an elastic portion, one end of the first pulling member is connected to the first wheel locking portion, the other end of the first pulling member is connected to the second wheel locking portion, and the conversion portion It is fixedly connected between the two ends of the first pulling member, the frame body is provided with a cavity, and the conversion part can slide The changing part has a first position and a second position in the cavity, the elastic part is arranged between the changing part and the frame body, and the driver is provided with a engaging part; when the driver is in the rearward position , the engaging part is engaged in the cavity and pushes the switching part, so that the switching part moves to the first position and compresses the elastic part; when the rider is in the forward position, the engaging part leaves the cavity, so that the elastic part pushes the switching part The first puller is moved to the second position by the conversion part moving between the first position and the second position, so that one of the first wheel locking part and the second wheel locking part is in the locked position In the release position, the other of the first wheel locking portion and the second wheel locking portion is in the locking position.

Preferably, the first pulling member includes a first pulling member and a second pulling member, one end of the first pulling member is connected to the conversion portion, the other end of the first pulling member is fixedly connected to the first wheel locking portion, and the second pulling member is One end of the second traction member is connected to the conversion part, and the other end of the second traction member is fixedly connected to the second wheel locking part.

Preferably, the first pulling member and the second pulling member are fixedly connected to the conversion part at intervals.

Preferably, one end of the first traction member is provided with a first sliding block, the other end of the first traction member is fixedly connected with the first wheel locking portion, the first sliding block is slidably arranged on the frame body, and the second traction member is slidably arranged on the frame body. One end of the piece is provided with a second sliding block, the other end of the second traction piece is fixedly connected with the second wheel locking part, the second sliding block is slidably arranged on the frame body, and the driver is provided with a pushing protrusion, by The driver drives the pushing protrusion to rotate, so that the pushing protrusion pushes the first sliding block and drives the first traction member, so as to drive the first wheel locking part to move from the locking position to the unlocking position, or make the pushing protrusion push up The second sliding block is pushed and the second traction member is driven to drive the second wheel locking portion to move from the locking position to the unlocking position.

Preferably, the pushing protrusion pushes the first sliding block or the second sliding block through the inclined surface.

Preferably, the child carrier further includes a first-wheel reset member and a second-wheel reset member, the first-wheel reset member cooperates with the first-wheel locking portion, and the first-wheel reset member constantly makes the second-wheel locking portion toward the locking position. The second-wheel reset part cooperates with the second-wheel locking part, and the second-wheel reset part constantly moves the second-wheel locking part toward the locking position.

Preferably, the conversion part is provided with a locking pin, the driver is provided with a locking hole, and the locking pin is inserted into the locking hole.

Preferably, the operation part is arranged on the driver, the linkage mechanism includes an operation traction part, a linkage part, a first top block and a second top block, one end of the operation traction part is connected with the operation part, and the other end of the operation traction part is connected with the linkage part. connected, the linkage is slidably arranged on the driver, the first top block and the second top block are respectively contacted and connected to both sides of the linkage; when the driver rotates to the forward position, the first top block is in contact with the first slider; When the driver turns to the rearward position, the second top block is in contact with the second slider; the operating part is pulled by the operating part to move together with the linking piece to push the first top block and the second slider, so that the first top block and the second slider are pushed up. The top block pushes the first slider to slide, so that the first traction member pulls the first wheel locking portion from the locked position to the unlocked position, or the second top block pushes the second slider to slide, so that the second The pulling member pulls the second wheel locking portion from the locking position to the unlocking position.

Preferably, the link piece is connected with the first top block and the second top block respectively through the inclined surface, the first top block is connected with the first slider through the inclined surface, and the second top block is connected with the second slider through the inclined surface.

Preferably, it also includes a second elastic reset piece and a third elastic reset piece, the second elastic reset piece is arranged between the first top block and the rider and used to reset the first top block, and the third elastic reset piece is arranged on the first top block. Between the second top block and the driver and used to reset the second top block.

Preferably, the sliding direction of the first top block is the same as the sliding direction of the second top block, and the sliding direction of the first top block is perpendicular to the sliding direction of the linkage member.

100: Children's Vehicles

10: Frame

15: Wheels

20: First round

30: Second round

31: Second wheel rotating part

32:Second round locking part

40: Operation Department

90: Linkage mechanism

33: Second Wheel Traction Department

34: Second round reset

351: Second wheel positioning groove

41: Button part

43: Second wheel transmission

331: The first traction member of the second round

333: Second Wheel Second Traction

321: Second wheel left lock

323: 2nd wheel right lock

301: Left second round

303: Right second round

42: Extensions

44: jack

431: The first connection hole

433: Second connection hole

45: lugs

50: Drive Department

51: Drivers

53: Drive pin

55: Operate the traction part

60: Fixing parts

511: Oblique opening

57: Elastic push piece

59: reset piece

11: Frame body

13: Drivers

21: The first round of rotation

22: First round locking part

23: The first round of reset pieces

513: First Piercing

515: Second perforation

80: Pull rod

519: Third Piercing

517: Chute

91: Conversion Department

93: First Puller

931: First End

933: Second End

911: Turn the body

913: Fixed pin

951: connect one end

953: connect two ends

955: connect three terminals

46: Pushing Department

96: The first connector

97: Second connector

961: First front connector

963: Second Front Connector

971: First rear connector

973: Second rear connector

957: Third Puller

959: Fourth Puller

952: Connect four terminals

98: Connector

99: Rotary body

1101: Pull one end

1102: Traction two ends

1103: traction three-terminal

915: Rotary body

9151: The first rotating protrusion

9153:Second rotating protrusion

111: Turn slot

1111: The first limit part

1113: The second limit part

130: Elastic part

112: cavity

113: Pivot part

651: First Traction

661: Second Traction

613: front foot

614: hind foot

6511: First guide

6611: Second guide

6512: First guide reset

6612: Second guide reset

6241: Locking Pin

6231: Locking hole

611: Sliding slot

6241: latch

612: Chute

6243: First elastic reset piece

7: Operation button

811: Drive Wheel

812a: First Traction Section

812b: Second traction part

812c: Third Traction Department

653: First Slider

663: Second Slider

621: push bump

821: Linkage

822: First top block

823: Second top block

824: Second elastic reset

825: Third elastic reset

FIG. 1 is a schematic structural diagram of a child carrier of the present invention.

FIG. 2 is a schematic structural diagram of the child carrier shown in FIG. 1 from another angle.

FIG. 3 is a schematic structural diagram of a display operation part in the child carrier shown in FIG. 2 .

FIG. 4 is a schematic structural diagram showing another state of the operation part in FIG. 3 .

FIG. 5 is a schematic structural diagram showing the connection relationship between the second wheel rotating part and the second wheel locking part of the child carrier shown in FIG. 1 .

FIG. 6 is a schematic structural diagram showing another state of the connection relationship between the second wheel rotating part and the second wheel locking part in FIG. 5 .

FIG. 7 is a schematic structural diagram of another embodiment of the child carrier of the present invention.

FIG. 8 is an enlarged view of A in FIG. 7 .

FIG. 9 is a schematic structural diagram of the child carrier shown in FIG. 7 in another state.

FIG. 10 is an enlarged view of B in FIG. 9 .

FIG. 11 is a partial structural schematic diagram showing the connection relationship in the driving part shown in FIG. 9 .

FIG. 12 is a schematic structural diagram of another embodiment of the children's carrier of the present invention.

FIG. 13 is an enlarged view of C in FIG. 12 .

FIG. 14 is a schematic structural diagram of the driving member in FIG. 12 .

FIG. 15 is a schematic structural diagram of another embodiment of the child carrier of the present invention.

FIG. 16 is an enlarged view of D in FIG. 15 .

FIG. 17 is a schematic diagram of the connection structure of the linkage mechanism in the frame of the child carrier shown in FIG. 15 .

FIG. 18 is a schematic structural diagram of the linkage mechanism in the child carrier shown in FIG. 15 .

FIG. 19 is a schematic structural diagram of another embodiment of the linkage mechanism in the child carrier shown in FIG. 15 .

FIG. 20 is a schematic structural diagram of another embodiment of the linkage mechanism in the child carrier shown in FIG. 15 .

FIG. 21 is a schematic structural diagram showing the operation part in the child carrier shown in FIG. 15 .

FIG. 22 is a schematic structural diagram of the child carrier shown in FIG. 15 from another angle.

FIG. 23 is an enlarged view of E in FIG. 22 .

FIG. 24 is a schematic structural diagram of another embodiment of the children's carrier of the present invention.

FIG. 25 is a schematic diagram of a part of the structure of FIG. 24 .

FIG. 26 is an enlarged view of F in FIG. 25 .

FIG. 27 is a schematic structural diagram of another angle of the child carrier shown in FIG. 24 .

FIG. 28 is an enlarged view of G in FIG. 27 .

FIG. 29 is a schematic structural diagram of yet another embodiment of the child carrier of the present invention.

FIG. 30 is a schematic diagram of the internal structure of the child carrier shown in FIG. 28 at the rider.

FIG. 31 is a schematic structural diagram of a driver, a front foot, and a rear foot at the pivotal connection positions of the driver according to another embodiment of the present invention, after removing part of the driver structure.

FIG. 32 is a schematic diagram of the internal structure between the front foot and the first wheel rotating part according to another embodiment of the present invention.

33 is a schematic diagram of the internal structure between the rear foot and the second wheel rotating part according to another embodiment of the present invention.

FIG. 34 is a schematic structural diagram of a pivot position between the front foot and the rear foot according to another embodiment of the present invention.

FIG. 35 is a schematic structural diagram of a driving member according to another embodiment of the present invention.

FIG. 36 is a schematic structural diagram of a driver according to still another embodiment of the present invention.

FIG. 37 is a schematic structural diagram of a front foot according to another embodiment of the present invention.

38 is a cross-sectional view of a driver, a front foot, and a rear foot at the pivoted position of another embodiment of the present invention.

FIG. 39 is a schematic structural diagram of a driving wheel and an operation button disposed on a driver according to another embodiment of the present invention.

FIG. 40 is a schematic structural diagram of the linkage mechanism connected to the first wheel locking portion and the second wheel locking portion respectively according to another embodiment of the present invention.

FIG. 41 is a schematic diagram of the connection structure at the position of the front foot according to another embodiment of the present invention.

42 is a schematic diagram of the internal structure of the connection between the first wheel rotating part and the front foot according to another embodiment of the present invention.

FIG. 43 is a schematic diagram of the connection structure at the position of the rear foot according to another embodiment of the present invention.

44 is a schematic diagram of the internal structure of the connection between the second wheel rotating portion and the rear foot according to another embodiment of the present invention.

FIG. 45 is a schematic structural diagram of the pivot position of the driver, the front foot and the rear foot according to another embodiment of the present invention.

46 is a schematic structural diagram of a driver's pushing protrusion after pushing the first slider according to another embodiment of the present invention.

FIG. 47 is a schematic structural diagram of a driver according to still another embodiment of the present invention.

48 is a schematic structural diagram of a driver's pushing protrusion when pushing the second slider according to another embodiment of the present invention.

FIG. 49 is a schematic structural diagram of a driving wheel and an operation button arranged on a driver according to another embodiment of the present invention.

FIG. 50 is a schematic structural diagram of a linkage mechanism according to another embodiment of the present invention.

FIG. 51 is a schematic structural diagram of a first top block disposed in a driver according to another embodiment of the present invention.

FIG. 52 is a schematic structural diagram of another angle of the linkage mechanism disposed in the driver according to another embodiment of the present invention.

FIG. 53 is a schematic structural diagram of the linkage mechanism at the pivoting positions of the driver, the front foot and the rear foot according to another embodiment of the present invention.

FIG. 54 is a schematic structural diagram of the first top block before pushing the first slider according to another embodiment of the present invention.

FIG. 55 is a schematic structural diagram of the second top block before pushing up the second sliding block according to another embodiment of the present invention.

FIG. 56 is a schematic structural diagram of the second top block after pushing the second sliding block according to another embodiment of the present invention.

Please refer to FIG. 1 and FIG. 2 , the present invention provides a child carrier 100 . The child carrier 100 can be a stroller, a baby stroller, etc. The child carrier 100 can be used to achieve the effect of being able to move flexibly in a small space or requiring a short lateral movement, and the specific description is as follows.

Please refer to FIGS. 1 and 2 , the child carrier 100 includes a frame 10 and wheels 15 disposed on the frame 10 . The wheel 15 includes a first wheel 20 and a second wheel 30, the first wheel 20 is rotatable relative to the frame 10, and the child carrier 100 further includes a second wheel rotating part 31, a second wheel locking part 32 and an operating part 40, wherein, Second round of 30 vs. The second wheel rotating portion 31 is pivotally connected, the second wheel rotating portion 31 is pivotally connected to the vehicle frame 10 , the second wheel locking portion 32 has a locking position and a unlocking position relative to the second wheel rotating portion 31 , and the second wheel locking portion 32 can Sliding between the locked position and the unlocked position, the second wheel locking part 32 releases the second wheel rotating part 31 to realize the rotation of the second wheel 30 relative to the frame 10, and the rotation can be a universal rotation or a certain angle range The second wheel locking part 32 locks the second wheel rotating part 31 to realize the directional movement of the second wheel 30 relative to the frame 10; the operation part 40 is arranged on the frame 10, and the operation part 40 is operated to realize the second wheel locking The portion 32 transitions from the locked position to the unlocked position. Specifically, the operation part 40 is a pressing operation member, a sliding operation member, a turntable operation member or a boat-shaped lever operation member, which is not limited herein.

Please refer to FIG. 1 , FIG. 2 , FIG. 5 and FIG. 6 , the child carrier 100 further includes a linkage mechanism 90 . The linkage mechanism 90 is disposed on the frame 10 , and the operating portion 40 is operated to drive the linkage mechanism 90 to realize the second wheel locking portion 32 From the locked position to the unlocked position. Specifically, the linkage mechanism 90 includes a second wheel traction part 33 , one end of the second wheel traction part 33 is connected to the operation part 40 , the other end of the second wheel traction part 33 is connected to the second wheel locking part 32 , and an external force is applied to the operation part 40 , the second wheel locking portion 32 is driven by the second wheel traction portion 33 to release the lock. Wherein, the traction part 33 of the second wheel can be made of steel wire, iron wire, plastic rope, etc., but not limited to this. Further, the child carrier 100 further includes a second wheel reset member 34 that cooperates with the second wheel locking portion 32. The second wheel reset member 34 constantly moves the second wheel locking portion 32 toward the locking position, that is, the operating portion 40 needs to be moved. Only by overcoming the elastic force of the second-wheel reset member 34 can the second-wheel locking portion 32 be transformed from the locking position to the unlocking position, so as to achieve the purpose of unlocking. But it is not limited to this, the child carrier 100 may not be provided with the linkage mechanism 90. For example, the operation part abuts against the locking part of the second wheel, and the operation part is operated to directly push the locking part of the second wheel to realize the second wheel. The lock portion is shifted from the locked position to the unlocked position.

Please refer to FIG. 5 and FIG. 6 , the second wheel locking portion 32 is movably disposed between the second wheel rotating portion 31 and the frame 10 , the second wheel rotating portion 31 is provided with a second wheel positioning groove 351 , and the second wheel The locking part 32 is inserted The second wheel locking portion 32 is released from the second wheel positioning slot 351 to be locked, and the second wheel rotating portion 31 can be relative to the frame 10 to be locked. The frame 10 is rotated.

Please refer to FIG. 3 and FIG. 4 , the operation part 40 includes a connected button part 41 and a second wheel transmission part 43 , the second wheel traction part 33 is connected with the second wheel transmission part 43 , and the button part 41 is driven by an external force to drive the second wheel transmission part 43 . The wheel transmission part 43 moves, so that the second wheel traction part 33 drives the second wheel locking part 32 . Specifically, the second wheel traction portion 33 includes a second wheel first traction member 331 and a second wheel second traction member 333 , and the second wheel locking portion 32 includes a second wheel left locking member 321 and a second wheel right locking member 323 , the second wheel 30 includes a second left wheel 301 and a second right wheel 303 (as shown in FIG. 1 ), one end of the first traction member 331 of the second wheel is connected to the left locking member 321 of the second wheel, and the first traction member of the second wheel The other end of the second wheel 331 is connected to one side of the transmission part 43 of the second wheel; On the other side of the transmission part 43 , the button part 41 is driven by an external force to drive the second wheel transmission part 43 to move, and the second wheel left locking part 321 is driven by the second wheel first traction member 331 to release the lock; The second wheel traction member 333 drives the second wheel right locking member 323 to release the lock, so that both the left second wheel 301 and the right second wheel 303 can rotate relative to the frame 10 . Further, the button portion 41 is provided with an extension portion 42 that is slidably inserted into the vehicle frame 10 , the extension portion 42 is provided with an insertion hole 44 , the second wheel transmission portion 43 is a disc structure pivotally connected to the vehicle frame 10 , and the second wheel transmission portion 43 A first connecting hole 431 for connecting the first traction member 331 of the second wheel, a second connecting hole 433 for connecting the second pulling member 333 of the second wheel, and a lug portion 45 extending into the insertion hole 44 are provided. It can be understood that the second wheel transmission part 43 is driven to rotate by a certain angle by pressing the button part 41 , thereby prompting the second wheel first traction member 331 and the second wheel second traction member 333 to pull the second wheel left locking member 321 respectively. The left second wheel 301 is released and the second wheel right locking member 323 is released for the right second wheel 303 . Furthermore, the first connection hole 431 and the second connection hole 433 are symmetrically arranged on the same diameter. The first connection hole 431 is connected to the second connection The holes 433 are spaced at a certain distance, and the specific lengths are set according to actual needs, which is not limited herein. When an external force is applied to the button part 41, the extension part 42 drives the second wheel transmission part 43 to rotate, so that the second wheel first traction member 331 and the second wheel second traction member 333 move a certain distance (refer to FIG. 3 and FIG. 4 ). can be seen in combination), thereby respectively driving the second wheel left locking member 321 from the second wheel positioning groove 351 to release the lock and driving the second wheel right locking member 323 to separate from the second wheel positioning groove 351 to release the lock, thereby realizing the left second wheel 301 Both the right second wheel 303 and the second wheel 303 can be rotated relative to the vehicle frame 10 , so that both the first wheel 20 and the second wheel 30 can be rotated relative to the vehicle frame 10 . That is to say, the above-mentioned operating portion 40 uses a pressing method to realize the unlocking of the second-wheel locking portion 32 , which can be referred to as a pressing operating member. Of course, the operating part 40 can also be configured as a sliding operating part, a rotary operating part or a boat-shaped lever operating part in addition to the pressing operating part.

For example, when the operating portion 40 is a sliding operating member, the sliding operating member is provided with a sliding groove at a corresponding position of the vehicle frame 10 to provide a sliding operating distance required for the sliding operating member, whereby the sliding operating member When pushed by an external force, the sliding element can directly pull the second-wheel traction part 33, thereby driving the second-wheel locking part 32 to release; The linkage mechanism enables the second wheel transmission portion 43 to be driven by the sliding operating member to drive the second wheel first traction member 331 and the second wheel second traction member 333 to displace, and also drives the second wheel left locking member 321 and the second wheel. The purpose of unlocking the right wheel locking member 323 is, but this is only an exemplary implementation example, and the assembly arrangement of the sliding operating member is not limited herein. When the operating part 40 is an example of a turntable operating member, it can be directly provided with perforations for the at least one second wheel traction part 33 to pass through and connect to it, and part of the turntable is exposed at the corresponding setting position of the frame 10 for the user to operate. , when the turntable operating member is rotated by an external force, it will directly pull the second wheel traction portion 33, thereby driving the second wheel locking portion 32 to release; or, the turntable operating member can be provided with a locking portion and a reset unit, and Used in conjunction with a set of locking pieces and unlocking pieces, when the turntable operating piece is rotated to a release angle that can drive the second wheel locking portion 32 to achieve the purpose of unlocking, the locking piece will work with the turntable operating piece. The locking parts on the work piece are engaged, and the second wheel locking part 32 is always in the unlocking position, and the second wheel 30 can rotate relative to the frame 10 for a short period of time continuously, and the operator does not need to continuously adjust it. The turntable operating member exerts an external force, and when the unlocking member matched with the locking member releases the locking member, the turntable operating member is reset to the normal position by the force of the reset unit, and does not pull the second-wheel traction part 33. , the second wheel locking portion 32 thus returns to the locking position, but this is only an exemplary implementation example, and the assembly arrangement of the sliding operating member is not limited herein.

For another example, when the operating portion 40 is a boat-shaped lever operating member, it uses the boat-shaped lever operating member to perform lever motion when it is pressed by an external force, thereby changing the stroke of the second-wheel traction portion 33 connected to the boat-shaped lever operating member, To achieve the purpose of driving the second-wheel locking portion 32 to release the lock, the principle and manner of its setting are the same as those of the other types of operating elements described above, and will not be repeated here.

Referring to FIGS. 7 and 8 , in another embodiment of the present application, the linkage mechanism further includes a driving part 50 , and the second wheel traction part 33 releases the second wheel 30 by the action of the driving part 50 . Specifically, one end of the second wheel pulling part 33 is connected to one side of the driving part 50 , and the other end of the second wheel pulling part 33 is connected to the second wheel locking part 32 . The operating part 40 is driven by an external force to drive the driving part 50 to move, and the second-wheel traction part 33 is linked to drive the second-wheel locking part 32 to release the second-wheel rotating part 31 . That is, the second wheel locking portion 32 is indirectly triggered by the driving portion 50 to release the second wheel rotating portion 31, so that the second wheel 30 can be rotated relative to the frame 10, wherein the driving portion 50 may be a turntable or a lever mechanism, It is not limited here. Further, the driving part 50 includes a driving member 51 , a driving pin 53 abutting against the driving member 51 (see FIG. 11 ), and an operation pulling part 55 , one end of the operation pulling part 55 is connected to the operation part 40 , and the other end of the operation pulling part 55 is connected to the driving part The operating portion 40 drives the driving pin 53 to move by operating the traction portion 55 . The driving pin 53 can drive the driving member 51 to move so that the second wheel locking portion 32 is released from the second wheel positioning groove 351 . There is no restriction on the way in which the driving pin 53 drives the driving member 51 to move. The inclined groove (not shown) in which the driving pin 53 slides. The driving member 51 is provided with an inclined opening 511 and is pivotally connected to the fixing member 60 . That is, the inclined groove is used as a guide, so that the driving pin 53 moves in the inclined groove, and at the same time, the driving pin 53 cooperates with the inclined opening 511 to drive the driving member 51 to rotate along a certain angle (combined with FIG. 8 and FIG. 10 ), so as to realize the driving member 51 turns. In order to improve the smoothness of rotation of the driving member 51 , the driving portion 50 further includes an elastic pushing member 57 abutting against the driving member 51 . When the driving pin 53 is driven by an external force to rotate the driving member 51 , the elastic pushing member 57 cooperates with the driving pin 53 . The push drive member 51 rotates. Furthermore, the driving part 50 also includes a reset member 59, and the reset member 59 constantly makes the second wheel locking part 32 move toward the locking position, that is, when the external force of the operating part disappears, under the action of the reset member 59, the driving pin 53 will move. Return to the original position, drive the driving member 51 to rotate to the original position, thereby losing the pulling force on the second-wheel traction part 33, and under the action of the second-wheel reset member 34, the second-wheel locking part 32 is moved toward the locking position, the second The wheel locking portion 32 is inserted into the second wheel positioning groove 351 to lock the second wheel rotating portion 31 . When an external force is applied to the operating portion 40, the operating portion 40 overcomes the elastic force of the reset member 59 to drive the operating traction portion 55 to move, and the operating traction portion 55 carries the driving pin 53 to move along the chute, thereby driving the driving member 51 to rotate at a certain angle, and the driving member 51 will drive the traction part 33 of the second wheel to pull up, and the traction part 33 of the second wheel will drive the locking part 32 of the second wheel to be released from the positioning groove 351 of the second wheel, so that the second wheel 30 can rotate 360 degrees relative to the frame 10 . Preferably, the linkage mechanism 90 further includes a second guide member, the second guide member is slidably disposed in the frame body 11 of the vehicle frame 10, the second guide member is connected with the second wheel traction part 33, and the second wheel pulls The second guide member 33 can drive the second guide member to slide, and the second guide member can guide and connect the second wheel traction member 33 . Specifically, the second-wheel traction part 33 includes a traction-pulling part and a traction-pulling part. One end of the traction-pulling part is connected to the driving part 50 , and the other end of the traction-pulling part is connected to the second guide member. One end of the pulley is connected to the second guide member, and the other end of the pulling and pulling part is connected to the second wheel locking part 32, that is to say, the second wheel pulling part 33 can be connected to the second guide member in two sections, but not Limited to this, for example For example, the traction part 33 of the second wheel can also be an integral structure and connected with the second guide member. Further, the child carrier 100 further includes a second guide reset member, the second guide reset member is disposed between the second guide member and the frame body 11 of the vehicle frame 10 , and the second guide reset member is used to make the second guide member reset.

Referring to FIGS. 1 and 2 , in another embodiment of the present application, a child carrier 100 includes a frame 10 , a wheel 15 disposed on the frame 10 , an operation portion 40 and a linkage mechanism 90 . The frame 10 includes a frame body 11 and a rider 13 pivotally connected to the frame body 11 , the wheels 15 include a first wheel 20 and a second wheel 30 , and the rider 13 has a rearward position and a forward position relative to the frame body 11 , Using the transition of the driver 13 between the rearward position and the forward position, the wheel 15 on the same side as the driver 13 is in a locked state and moves directionally relative to the frame 10, and the wheel 15 on the other side is in an unlocked state and relatively to the vehicle The frame 10 rotates, and the rotation can be a universal rotation or a rotation within a certain angle range; the operation part 40 is operated to drive the interlocking mechanism 90 to release the wheel 15 in the locked state and in the unlocked state, so as to realize the first wheel 20 and the second wheel 30 can rotate relative to the frame body 11 . It can be understood that when the rider 13 is in the forward position, the first wheel 20 is on the same side as the rider 13, and the first wheel 20 is in the locked position for directional movement, that is, the rotation of the first wheel 20 relative to the frame 10 is restricted, and the first wheel 20 is in the locked position. The second wheel 30 is in the unlocked position and can be rotated. The user manipulates the operation part 40 to drive the linkage mechanism 90 to drive the first wheel 20 to unlock and be in the unlocked position, so that both the first wheel 20 and the second wheel 30 can be rotated. Similarly, when the rider 13 is in the rearward position, the second wheel 30 is on the same side as the rider 13, and the second wheel 30 is in the locked position for directional movement, that is, the rotation of the second wheel 30 relative to the frame 10 is restricted, and the first wheel 30 is restricted from rotating relative to the frame 10. 20 is in the unlocked position and can be rotated, the user manipulates the operation part 40 to drive the linkage mechanism 90 to drive the second wheel 30 to unlock and is in the unlocked position, so that both the first wheel 20 and the second wheel 30 can be rotated.

Please refer to FIGS. 1 and 2 , the child carrier further includes a second wheel rotating portion 31 , a second wheel locking portion 32 , a first wheel rotating portion 21 and a first wheel locking portion 22 (as shown in FIGS. 22-23 ). The second wheel rotating part 31 is provided between the frame 10 and the second wheel 30 , specifically, the second wheel 30 is pivotally connected to the second wheel rotating part 31 , and the first The second wheel rotating portion 31 is pivotally connected to the bottom of the frame body 11 , the second wheel locking portion 32 has a locking position and a unlocking position relative to the second wheel rotating portion 31 ; the second wheel locking portion 32 releases the second wheel rotating portion 31 In order to realize the rotation of the second wheel 30 relative to the frame body 11; the second wheel locking part 32 locks the second wheel rotation part 31 to realize the directional movement of the second wheel 30 relative to the frame body 11; the first wheel rotation part 21 is provided on the vehicle Between the frame 10 and the first wheel 20, specifically, the first wheel 20 is pivotally connected to the first wheel rotating portion, the first wheel rotating portion is pivotally connected to the bottom of the frame body 11, and the first wheel locking portion 22 is opposite to the first wheel. The wheel rotation part 21 has a lock position and a lock release position; the first wheel lock part 22 releases the lock to the first wheel rotation part 21 to realize the rotation of the first wheel 20 relative to the frame body 11; the first wheel lock part 22 locks the first wheel The rotating part 21 is locked to realize the directional movement of the first wheel 20 relative to the frame body 11 .

Referring to FIGS. 5 and 6 , in one embodiment, the first wheel 20 is rotatable relative to the frame 10 , and the second wheel locking portion 32 locks the second wheel rotating portion 31 to restrict the rotation of the second wheel 30 relative to the frame 10 . The linkage mechanism 90 includes a second wheel traction part 33 and a second wheel reset part 34. One end of the second wheel traction part 33 is connected to the operation part 40, and the other end of the second wheel traction part 33 is connected to the second wheel locking part 32. The operation part 40 is applied with external force, and the second wheel locking part 32 is driven by the second wheel traction part 33 to release the lock. Wherein, the traction part 33 of the second wheel can be made of steel wire, iron wire, plastic rope, etc., but not limited to this. The second-wheel reset member 34 is connected to the second-wheel locking portion 32 , and the second-wheel reset member 34 constantly moves the second-wheel locking portion 32 toward the locking position, that is, the operating portion 40 needs to overcome the elastic force of the second-wheel reset member 34 The second wheel locking portion 32 can be changed from the locking position to the unlocking position to achieve the purpose of unlocking. It should be understood that a first-wheel reset member 23 is also included, which is used to constantly move the first-wheel locking portion 22 toward the locking position. For details, please refer to the second-wheel reset member 34 .

Please refer to FIGS. 3 and 4 , the second-wheel traction part 33 includes a second-wheel first traction member 331 and a second-wheel second traction member 333 , and the second-wheel locking portion 32 includes a second-wheel left-locking member 321 and a second-wheel left locking member 321 . wheel right lock The fixed part 323, the second wheel 30 includes the left second wheel 301 and the right second wheel 303 (as shown in FIG. 1), the operation part 40 includes the connected button part 41 and the second wheel transmission part 43, the second wheel One end of a traction member 331 is connected to the left locking member 321 of the second wheel, the other end of the first traction member 331 of the second wheel is connected to one side of the transmission part 43 of the second wheel; one end of the second traction member 333 of the second wheel is connected to the second wheel The wheel right locking member 323, the other end of the second wheel second traction member 333 is connected to the other side of the second wheel transmission part 43, the button part 41 is driven by external force to drive the second wheel transmission part 43 to move, A traction member 331 drives the left locking member 321 of the second wheel to release the lock, and at the same time, the second traction member 333 of the second wheel drives the right locking member 323 of the second wheel to release the lock, so as to realize the second left wheel 301 and the second right wheel 303 can be rotated relative to the frame 10 . Further, the button portion 41 is provided with an extension portion 42 that is slidably inserted into the vehicle frame 10 , the extension portion 42 is provided with an insertion hole 44 , the second wheel transmission portion 43 is a disc structure pivotally connected to the vehicle frame 10 , and the second wheel transmission portion 43 A first connecting hole 431 for connecting the first traction member 331 of the second wheel, a second connecting hole 433 for connecting the second pulling member 333 of the second wheel, and a lug portion 45 extending into the insertion hole 44 are provided. It can be understood that the second wheel transmission part 43 is driven to rotate by a certain angle by pressing the button part 41 , thereby prompting the second wheel first traction member 331 and the second wheel second traction member 333 to pull the second wheel left locking member 321 respectively. The left second wheel 301 is released and the second wheel right locking member 323 is released for the right second wheel 303 . Furthermore, the first connection hole 431 and the second connection hole 433 are symmetrically arranged on the same diameter. There is a certain distance between the first connection hole 431 and the second connection hole 433 , and the specific length is set according to actual needs, which is not limited herein. When an external force is applied to the button part 41, the extension part 42 drives the second wheel transmission part 43 to rotate, so that the second wheel first traction member 331 and the second wheel second traction member 333 move a certain distance (refer to FIG. 3 and FIG. 4 ). can be seen in combination), thereby respectively driving the second wheel left locking member 321 from the second wheel positioning groove 351 to release the lock and driving the second wheel right locking member 323 to separate from the second wheel positioning groove 351 to release the lock, thereby realizing the left second wheel 301 Both the right second wheel 303 and the second wheel 303 can be rotated relative to the vehicle frame 10 , so that both the first wheel 20 and the second wheel 30 can be rotated relative to the vehicle frame 10 . That is to say, the above-mentioned operation part 40 adopts the pressing method to realize the second round The unlocking of the locking portion 32 can be referred to as a pressing operation member. Of course, the operating part 40 can also be configured as a sliding operating part, a rotary operating part or a boat-shaped lever operating part in addition to the pressing operating part.

Referring to FIGS. 7 and 8 , in another embodiment of the present application, the linkage mechanism 90 further includes a driving portion 50 , a second-wheel traction portion 33 and a first-wheel traction portion, and the second wheel is realized by the action of the driving portion 50 . The release of the second wheel 30 by the traction part 33 or the release of the first wheel 20 by the traction part of the first wheel. Specifically, one end of the second wheel traction part 33 is connected to one side of the driving part 50 , the other end of the second wheel traction part 33 is connected to the second wheel locking part 32 ; one end of the first wheel traction part is connected to the other side of the driving part 50 . On the other hand, the other end of the traction part of the first wheel is connected to the locking part 22 of the first wheel. The operating part 40 is driven by an external force to drive the driving part 50 to move, linking the traction part 33 of the second wheel and the traction part of the first wheel, thereby driving the locking part 32 of the second wheel to release the rotating part 31 of the second wheel, or driving the first wheel The locking portion 22 releases the first wheel rotating portion 21 . That is, the second wheel locking portion 32 is indirectly triggered by the driving portion 50 to release the second wheel rotating portion 31, so that the second wheel 30 can be rotated relative to the frame 10, or indirectly triggering the first wheel locking portion 22 to the second wheel. The one-wheel rotating part 21 is unlocked, so that the first wheel 20 can rotate relative to the vehicle frame 10 , wherein the driving part 50 can be a turntable or a lever mechanism, which is not limited here. Specifically, when the driver 13 is in the backward position, the first wheel locking portion 22 is in the unlocking position, the second wheel locking portion 32 is in the locking position, and the operating portion 40 is used to drive the driving portion 50 to drive the second wheel traction portion 33 to drive the second wheel. The wheel locking portion 32 is released to keep the first wheel 20 and the second wheel 30 rotatable relative to the frame 10; when the rider 13 is in the forward position, the first wheel locking portion 22 is in the locking position, and the second wheel locking portion 32 is in the unlocking position, and the operating part 40 drives the driving part 50 to drive the first wheel traction part to drive the first wheel locking part 22 to release the lock, keeping both the first wheel 20 and the second wheel 30 rotatable relative to the frame 10 . Preferably, the linkage mechanism 90 further includes a first guide member and a second guide member, the first guide member and the second guide member are respectively slidably arranged in the frame body 11 of the vehicle frame 10, and the first guide member and the The traction part of the first wheel is connected, and the traction part of the first wheel can drive the first guide member to slide, and the first guide member pulls the first wheel The lead portion plays a guiding and connecting role; the second guiding member is connected to the second wheel pulling portion 33 , the second wheel pulling portion 33 can drive the second guiding member to slide, and the second guiding member plays a guiding and connecting role for the second wheel pulling portion 33 . Wherein, the traction part of the first wheel can be connected with the first guide member in two sections, and the traction section 33 of the second wheel can be connected with the second guide member in two sections, but not limited to this, for example, the first The wheel traction part can also be an integral structure and connected to the first guide member, and the second wheel traction part 33 can also be an integral structure and connected to the second guide member. Further, the child carrier 100 further includes a first guide reset piece and a second guide reset piece, the first guide reset piece is provided between the first guide piece and the frame body 11 of the frame 10, and the second guide reset piece is provided Between the second guide member and the frame body 11 of the vehicle frame 10 , the first guide reset member is used to reset the first guide member, and the second guide reset member is used to reset the second guide member.

Referring to FIGS. 9 to 13 , the driving part 50 includes a driving member 51 , a driving pin 53 abutting against the driving member, and an operation pulling part 55 , one end of the operation pulling part 55 is connected to the operation part 40 , and the other end of the operation pulling part 55 is connected to the driving part The operating portion 40 drives the driving pin 53 to move by operating the traction portion 55 . The driving pin 53 can drive the driving member 51 to move so that the second wheel locking portion 32 is released from the second wheel positioning groove 351 . There is no restriction on the way that the driving pin 53 drives the driving member 51 to move. For example, a fixing member 60 can be provided on the frame 10. The oblique opening 511 is pivotally connected to the fixing member 60 , and the driving pin 53 slides along the oblique groove to fit the oblique opening 511 to drive the driving member 51 to rotate. That is, the inclined groove is used as a guide, so that the driving pin 53 moves in the inclined groove, and at the same time, the driving pin 53 cooperates with the inclined opening 511 to drive the driving member 51 to rotate along a certain angle (combined with FIG. 8 and FIG. 10 ), so as to realize the driving member 51 turns. In order to improve the smoothness of rotation of the driving member 51 , the driving portion 50 further includes an elastic pushing member 57 abutting against the driving member 51 . When the driving pin 53 is driven by an external force to rotate the driving member 51 , the elastic pushing member 57 cooperates with the driving pin 53 . The push drive member 51 rotates. Further, the driving part 50 also includes a reset member 59, and the reset member 59 constantly moves the second wheel locking part 32 toward the locking position, that is, when the external force of the operating part disappears, Under the action of the reset member 59 , the driving pin 53 will return to the original position, driving the driving member 51 to rotate to the original position, thereby losing the pulling force on the traction part 33 of the second wheel, and under the action of the reset member 34 of the second wheel, the second wheel The wheel locking portion 32 moves toward the locking position, and the second wheel locking portion 32 is inserted into the second wheel positioning groove 351 to lock the second wheel rotating portion 31 . When an external force is applied to the operating portion 40, the operating portion 40 overcomes the elastic force of the reset member 59 to drive the operating traction portion 55 to move, and the operating traction portion 55 carries the driving pin 53 to move along the chute, thereby driving the driving member 51 to rotate at a certain angle, and the driving member 51 will drive the traction part 33 of the second wheel to pull up, and the traction part 33 of the second wheel will drive the locking part 32 of the second wheel to be released from the positioning groove 351 of the second wheel, so that the second wheel 30 can rotate 360 degrees relative to the frame 10 .

More specifically, the driving member 51 is pivotally connected to the frame 10 and is provided with a first through hole 513 and a second through hole 515 at a certain distance (please refer to FIG. 11 ). The second-wheel traction part 33 is connected to the second through hole 515 . When the driver 13 is in the backward position, the first through hole 513 and the second through hole 515 are located at the first position, the operating part 40 drives the driving pin 53 to move by operating the traction part 55 , and the driving pin 53 drives the driving member 51 to rotate to make the first through hole 513 and the second through hole 515 are located in the second position, the traction part of the first wheel and the traction part 33 of the second wheel move a certain distance, and the traction part 33 of the second wheel pulls the locking part 32 of the second wheel away from the positioning groove 351 of the second wheel to release the lock , and the moving distance of the traction part of the first wheel is not enough to make it change from the unlocked position to the locked position, therefore, the locking part 22 of the first wheel is still in the unlocked position, so that the first wheel 20 and the second wheel 30 are opposite to each other. The frame 10 can rotate 360 degrees; when the driver 13 is in the forward position, the first through hole 513 and the second through hole 515 are located in the third position because the driver 51 is driven to rotate during the reversing process of the driver 13, and the operation part 40 uses the The driving pin 53 is driven by the operating traction part 55, and the driving pin 53 drives the driving member 51 to rotate so that the first through hole 513 and the second through hole 515 are located in the fourth position. 51 rotates to move a certain distance, the traction part of the first wheel pulls the locking part 22 of the first wheel to release the rotation part 21 of the first wheel, and the traction part of the second wheel pulls the locking part 22 of the first wheel The movement distance of 33 is not enough to make it change from the unlocked position to the locked position. Therefore, the second wheel locking portion 32 is still in the unlocked position, so that both the first wheel 20 and the second wheel 30 can move 360 degrees relative to the frame 10. degrees of rotation.

With reference to FIGS. 1-11 , how to realize that both the first wheel 20 and the second wheel 30 can rotate 360 degrees relative to the frame 10 after the driver 13 changes direction will be described in detail.

When the rider 13 is in the forward position, the first wheel 20 is on the same side as the rider 13 . Since the first wheel locking portion 22 defines the first wheel rotation portion 21 , the rotation of the first wheel 20 relative to the frame 10 is restricted. The second wheel locking portion 32 releases the second wheel rotating portion 31 , so that the second wheel 30 can rotate relative to the vehicle frame 10 . At this time, the operating portion 40 is subjected to external pressure, and uses the operating traction portion 55 to drive the driving pin 53 to move. The operating traction portion 55 brings the driving pin 53 to move along the inclined groove, and at the same time, the driving pin 53 cooperates with the inclined opening 511 to drive the driving member 51 to rotate for a certain amount. Angle, the driving member 51 will drive the traction part of the first wheel to pull upward, and the traction part of the first wheel will drive the locking part 22 of the first wheel to release the lock, so that the first wheel 20 can rotate 360 degrees. The distance between the first through hole 513 and the second through hole 515 and the length of the chute can be set according to actual conditions.

When the rider 13 is in the rearward position, the second wheel 30 is on the same side as the rider 13 . Since the second wheel locking portion 32 defines the second wheel rotation portion 31 , the rotation of the second wheel 30 relative to the frame 10 is restricted. . The first wheel locking portion 22 releases the second wheel rotating portion 31 , so that the first wheel 20 can rotate relative to the frame 10 . At this time, the operating part 40 is subjected to external pressure, and uses the operating pulling part 55 to drive the driving pin 53 to move, and the operating pulling part 55 brings the driving pin 53 to move along the inclined groove, thereby driving the driving member 51 to rotate at a certain angle, and the driving member 51 will drive the first The pulling part 33 of the second wheel pulls upward, and the pulling part 33 of the second wheel drives the locking part 32 of the second wheel to release the lock, so that the second wheel 30 can rotate 360 degrees.

In another embodiment, please refer to FIG. 11 , the drive pin 53 can be moved by pulling the pull rod 80 , that is, when the operating portion 40 is pressed, the operating traction portion 55 drives the pull rod 80 to move upward, thereby driving the drive pin 53 to move.

In another embodiment, please refer to FIGS. 12-14 , the driving member 51 is provided with a third through hole 519 without the first through hole 513 and the second through hole 515 , and the operation part 40 includes the connected button part 41 and the second through hole 515 . The wheel transmission part 43 and the second wheel transmission part 43 are provided with a first connection hole 431 and a second connection hole 433 , and the second wheel traction part 33 is connected with the first wheel traction part to form a group, which is connected to the driving member 51 . The third through hole 519 uses the driving member 51 to drive the second wheel traction part 33 and the first wheel traction part of the group to move to realize the unlocking and locking situation. The specific unlocking and locking situations are as described above, and will not be described in detail here. . Furthermore, the driving member 51 has a sliding groove 517 for accommodating the driving pin 53 when the frame 10 is folded.

In another embodiment, please refer to FIGS. 15-18 , the child carrier 100 further includes a conversion part 91 and a first pulling member 93 , the conversion part 91 is installed between the rider 13 and the frame body 11 , and the first pulling member 93 is connected to the conversion portion 91, one end of the first pulling member 93 is fixedly connected to the first wheel locking portion 22 (as shown in Figures 22-23), and the other end of the first pulling member 93 is fixedly connected to the second wheel locking portion 32. Wherein, the connection between the first pulling member 9 and the converting portion 91 may be a sliding connection or a fixed connection. In this embodiment, the first pulling member 93 has a first end 931 and a second end 933, the conversion part 91 is fixedly connected between the first end 931 and the second end 933, and the first end 931 is connected and fixed to the first wheel The locking portion 22 (as shown in Figures 22-23), the second end 933 is connected and fixed to the second wheel locking portion 32, the driver 13 switches between the rearward position and the forward position to drive the conversion portion 91 to move, and the first pulling member 93 is linked Move so that the wheel 15 on the same side as the rider 13 is in the locked position, and the wheel 15 on the other side is in the unlocked position. That is to say, when the driver 13 switches between the rearward position and the forward position, it will drive the switching part 91 to move, and the switching part 91 will pull the first pulling member 93 to move, changing the first wheel locking part 22 to the first wheel positioning groove The distance or second round locking part 32 to th The distance between the two-wheel alignment grooves 351 is to realize that the wheel 15 on the same side as the driver 13 is in the locked position while the wheel 15 on the same side of the driver 13 is in the locked position, and the wheel 15 on the other side is in the unlocked position. Further, the conversion part 91 includes a rotating body 911 and a fixing pin 913. The rotating body 911 has a first rotating position and a second rotating position, and is provided with a groove for installing the fixing pin 913. The fixing pin 913 is connected and fixed to the first end 931 and the The first pulling member 93 between the second ends 933 , that is, the fixing pin 913 can fix the first pulling member 93 while being fixed in the groove. The driver 13 switches between the rearward position and the forward position, and drives the rotating body 11 to switch between the first rotation position and the second rotation position. Specifically, when the rotating body 911 is in the first rotating position, the rider 13 is in the rearward position, and when the rider 13 is in the rearward position and turns to the forward position, when the rotating body 911 is in the second rotating position, the first pulling member 93 Change the distance from the first wheel locking portion 22 to the first wheel positioning groove or the distance from the second wheel locking portion 32 to the second wheel positioning groove 351 . But not limited to this, the first pulling member 93 can also be directly connected to the rider 13, one end of the first pulling member 93 is fixedly connected to the first wheel locking portion 22, and the other end of the first pulling member 93 is fixedly connected In the second wheel locking portion 32, the driver 13 switches between the rearward position and the forward position to drive the conversion portion to move, and the first pulling member 93 moves in conjunction to realize the directional movement of the wheel 15 on the same side as the driver 13 relative to the frame body 11, On the other hand, the wheel 13 on the other side rotates relative to the frame body 11 . Wherein, the first pulling member 93 may be provided with a guiding member, and the guiding member is slidably disposed in the frame body 11 . its guiding connection.

Please refer to FIGS. 17 and 18 , the linkage mechanism 90 includes an operation pulling portion 55 . The operation pulling portion 55 has a connecting end 951 , a second connecting end 953 and a third connecting end 955 . The connecting end 951 is connected to the operation portion 40 , and the second connecting end 953 is connected to the The first end 931 of the first pulling member 93 is fixedly connected, and the three connecting ends 955 are fixedly connected with the second end 933 of the first pulling member 93 . Specifically, the driver 13 is switched between the rearward position and the forward position so that the wheel 15 on the same side as the driver 13 is in the locked position, and the wheel 15 on the other side is in the unlocked position set. The operating portion 40 is pulled by the connecting end 951 to operate the traction portion 55 to move by external force, thereby pulling the first wheel locking portion 22 to release the lock by the action of connecting the second end 953 and the first end 931, and by connecting the third end 955 and the second The action of the end 933 pulls the second wheel locking portion 32 to release. In yet another embodiment, the operation part 40 includes a button part 41 and a push part 46 (please refer to FIG. 21 ) connected to the button part 41 , the connecting end 951 of the operation pulling part 55 is connected to the push part 46 , and the button part 41 is operated The pushing portion 46 is driven to move, and the traction portion 55 is pulled and operated to release the wheel 15 in the locked position to be in the unlocked position.

Please refer to FIGS. 17 and 18 , the linkage mechanism 90 further includes a first connecting member 96 and a second connecting member 97 , through which the first end 931 of the first pulling member 93 and/or the operating pulling portion 55 are realized. The second connecting end 953 of the first wheel is fixedly connected with the first wheel locking part 22; the second end 933 of the first pulling member 93 and/or the connecting third end 955 of the operating pulling part 55 are locked with the second wheel through the second connecting member 97 The part 32 is fixedly connected. The first connecting member 96 and the second connecting member 97 can be slidably installed in the frame 10 , and between the first connecting member 96 and the first wheel locking portion 22 and between the second connecting member 97 and the second wheel locking portion 32 . Between, but not limited to steel wire connection. The first end 931 is connected and fixed with the first connecting member 96 , and the second end 933 is connected and fixed with the second connecting member 97 . In one embodiment, the connection two ends 953 are connected and fixed to the first end 931 , and the connection three ends 955 are connected and fixed to the second end 933 (as shown in FIG. 18 ). In another embodiment, the second connecting end 953 is connected and fixed to the first connecting member 96 , and the third connecting end 955 is connected and fixed to the second connecting member 97 (as shown in FIG. 19 ). In yet another embodiment, the first connector 96 includes a first front connector 961 and a second front connector 963, the second connector 97 includes a first rear connector 971 and a second rear connector 973, and the first end 931 It is connected and fixed with the first front connector 961, the second end 953 is connected and fixed on the second front connector 963, the second end 933 is connected and fixed with the first rear connector 971, and the third end 955 is connected and fixed on the second rear connector 973 (as shown in Figure 20).

Please refer to FIGS. 17 and 18 , the operation pulling part 55 includes a third pulling member 957 and a fourth pulling member 959 , the third pulling member 957 has a connecting end 951 and a fourth connecting end 952 , and the fourth pulling member 959 has two connecting ends 953 and the third connecting end 955 , the fourth connecting end 952 is connected and fixed with the fourth pulling member 959 , and the connection is located between the second connecting end 953 and the third connecting end 955 . Preferably, the third pulling member 957 is connected and fixed at the middle of the fourth pulling member 959 by connecting the four ends 952 . Further, the linkage mechanism 90 further includes a connecting body 98 and a rotating body 99, the connecting body 98 has a rotating space, the rotating body 99 is located in the rotating space and is pivotally connected to the connecting body 98, the connecting four ends 952 are fixedly connected with the connecting body 98, the fourth The pulling member 959 passes between the rotating body 99 and the connecting body 98 and can be pulled by the rotating body 99 . That is, the rotating body 99 pulls the middle of the fourth pulling member 959, and the third pulling member 957 drives the connecting body 98 to move. Since the rotating body 99 is pivotally connected in the rotating space, the operation can be labor-saving.

The following describes in detail how the first wheel 20 and the second wheel 30 can both rotate 360 degrees relative to the frame 10 during the reversing process of the driver 13 in this embodiment.

The driver 13 is switched from the backward position to the forward position, that is, the first wheel 20 and the driver 13 are on the same side, and the rotating body 11 is driven from the first rotating position to the second rotating position. The distance from the second wheel locking portion 32 to the second wheel positioning groove 351 enables the second wheel locking portion 32 to release the second wheel rotating portion 31, so that the second wheel 30 can rotate relative to the frame 10; The distance from the wheel locking portion 22 to the first wheel positioning groove, under the action of the first wheel reset member 23, makes the first wheel locking portion 22 lock the first wheel rotating portion 21, and restricts the first wheel 20 from rotating relative to the frame 10 . At this time, the operating portion 40 is subjected to external pressure to tighten the third pulling member 957, and through the action of the connecting body 98 and the rotating body 99, the fourth pulling member 959 is driven to tighten, and the fourth pulling member 959 directly or indirectly drives the first pulling member 959. The wheel locking portion 22 releases the first wheel rotating portion 21 , for example, by connecting the two ends 953 to pull the first connecting member 96 to move or pulling the first end 931 of the first pulling member 93 through the connecting two ends 953 to drive the first connecting member 96 move to tighten the The distance from the wheel locking portion 22 to the first wheel positioning groove enables the first wheel locking portion 22 to release the first wheel rotating portion 21 , thus enabling the first wheel 20 to rotate relative to the frame 10 . Therefore, both the first wheel 20 and the second wheel 30 can be rotated relative to the frame 10 .

The driver 13 is switched from the forward position to the rear position, that is, the second wheel 30 is on the same side as the driver 13, which drives the rotating body 11 from the second rotating position to the first rotating position. The distance between the first wheel locking portion 22 and the first wheel positioning groove enables the first wheel locking portion 22 to release the first wheel rotating portion 21, so that the first wheel 20 can rotate relative to the frame 10; at the same time, the second wheel locking portion is released The distance from the part 32 to the second wheel positioning groove 351 , under the action of the second wheel reset member 34 , the second wheel locking part 32 locks the second wheel rotating part 31 , and restricts the second wheel 30 from rotating relative to the frame 10 . At this time, the operation part 40 is subjected to external pressure to tighten the third pulling member 957, and through the action of the connecting body 98 and the rotating body 99, the fourth pulling member 959 is driven to tighten, and the fourth pulling member 959 directly or indirectly drives the second pulling member 959. The wheel locking portion 32 releases the second wheel rotating portion 31 , for example, by connecting the three ends 955 to pull the second connecting member 97 to move or pulling the second end 933 of the first pulling member 93 by connecting the three ends 955 to drive the second connecting member 97 move to tighten the distance between the second wheel locking portion 32 and the second wheel positioning groove 351 , so that the second wheel locking portion 32 releases the second wheel rotating portion 31 , so that the second wheel 30 can be moved relative to the frame 10 turn. Therefore, both the first wheel 20 and the second wheel 30 can be rotated relative to the frame 10 .

Referring to FIGS. 24-28 , in another embodiment, the driver 13 drives one of the first wheel 20 and the second wheel 30 to lock and the other to unlock when the driver 13 switches between the backward position and the forward position. Specifically, the child carrier 100 includes a conversion part 91 and a first pulling member 93, the conversion part 91 is installed between the rider 13 and the frame body 11, the conversion part 91 has a first rotation position and a second rotation position, the first pulling One end of the first pulling member 93 is connected to the first wheel locking portion 22 , the middle portion of the first pulling member 93 is wound around the second wheel locking portion 32 , and the other end of the first pulling member 93 is connected to the converting portion 91 . Drive the conversion part 91 from the first rotational position and Switch between the second rotating positions to drive the first pulling member 93 to move, so that one of the first wheel locking portion 22 and the second wheel locking portion 32 is in the unlocking position, the first wheel locking portion 22 and the second wheel locking portion 22 and the second wheel The other of the locking portions 32 is in the locking position. Specifically, the first pulling member 93 has a pulling end 1101 and a pulling second end 1102, the pulling end 1101 is connected to the first wheel locking portion 22, the pulling second end 1102 is fixedly connected with the converting portion 91, and the pulling end 1101 and the pulling second end 1102 are fixedly connected. There are three traction ends 1103 therebetween, and the third traction ends 1103 are connected to the second wheel locking portion 32 . The restoring force of the second-round restoring member 34 is greater than the restoring force of the first-round restoring member 23 . The driver 13 switches between the backward position and the forward position, and drives the switching part 91 to switch between the first rotation position and the second rotation position. Specifically, when the conversion part 91 is in the first rotation position, the driver 13 is in the rearward position, and when the driver 13 turns from the rearward position to the forward position, the conversion part 91 is driven to be in the second rotation position, because the stroke of the conversion part 91 occurs. Change, by pulling the second end 1102 to tighten the first pulling member 93, so that the pulling third end 1103 overcomes the restoring force of the second wheel restoring member 34, so that the second wheel locking portion 32 releases the second wheel 30, and at the same time pulls One end 1101 cannot overcome the restoring force of the first-wheel reset member 23 , so that the first-wheel locking portion 22 locks the first-wheel 20 . When the conversion part 91 is in the second rotation position, the driver 13 is in the forward position, and when the driver 13 turns from the forward position to the rearward position, the conversion part 91 is driven to be in the first rotation position, since the stroke of the conversion part 91 is changed, by The second pulling end 1102 loosens the first pulling member 93, so that the third pulling end 1103 cannot overcome the restoring force of the second wheel restoring member 34, so that the second wheel locking portion 32 locks the second wheel 30, but at the same time due to the second wheel restoring member The reset force of 34 is greater than the reset force of the first-wheel reset member 23. When the second-wheel locking part 32 locks the second wheel 30, an external force is applied to the traction end 1101 by the traction three ends 1103, so that the traction end 1101 overcomes the first wheel. The restoring force of the restoring member 23 makes the first wheel locking portion 22 release the first wheel 20 . In this embodiment, the converting portion 91 includes a rotating body 915, and the rotating body 915 is provided with a first rotating convex portion 9151 and a second rotating convex portion 9153, the vehicle frame 10 is provided with a rotating groove 111, and the rotating groove 111 is provided with a first limit The position part 1111 and the second limit part 1113, the rotating body 915 is located in the rotating groove 111 and pivots with the frame 10 Then, the first limiting portion 1111 is located on one side of the first rotating convex portion 9151 and the second rotating convex portion 9153, and the second limiting portion 1113 is located on the other side of the first rotating convex portion 9151 and the second rotating convex portion 9153 within the interval. The two pulling ends 1102 are fixedly connected with the rotating body 915 . With the help of the first rotating convex portion 9151 , the second rotating convex portion 9153 , the first limiting portion 1111 and the second limiting portion 1113 , the rider 13 switches between the rearward position and the forward position, and drives the switching portion 91 to Switch between the first rotation position and the second rotation position, thereby changing the distance between the first wheel locking portion 22 and the first wheel positioning groove or the distance between the second wheel locking portion 32 and the second wheel positioning groove 351 by means of the first pulling member 93 . distance, so that one of the first wheel 20 and the second wheel 30 is locked and the other is unlocked. It should be understood that, in this embodiment, when the driver 13 is switched between the rearward position and the forward position, one of the first wheel 20 and the second wheel 30 can be locked, and the other can be unlocked based on the interlocking mechanism 90 . That is to say, both the first wheel 20 and the second wheel 30 can rotate 360 degrees relative to the frame 10 . For example, the connecting end 951 of the operating pulling portion 55 is connected to the operating portion 40, the second connecting end 953 is fixedly connected with the first pulling member 93 or the converting portion 91 on one side, and the third end 955 is connected with the first pulling member on the other side. 93 or the conversion part 91 is fixedly connected, that is, an external force is applied to the first pulling member 93, so that the first wheel 20 or the second wheel 30 in the locked state is unlocked. The specific operation process can refer to the above embodiment, and will not be continued here. elaborate.

Referring to FIGS. 29 and 30 , in another embodiment, the driver 13 drives one of the first wheel 20 and the second wheel 30 to lock and the other to unlock when the rider 13 switches between the backward position and the forward position. Specifically, the child carrier 100 includes a first pulling member 93 , a converting portion 91 and an elastic portion 130 , one end of the first pulling member 93 is connected to the first wheel locking portion 22 , and the other end of the first pulling member 93 is connected to the second wheel The locking portion 32 is connected, the converting portion 91 is fixedly connected between the two ends of the first pulling member 93 , the frame body 11 of the vehicle frame 10 is provided with a cavity 112 , and the converting portion 91 is slidably arranged in the cavity 112 to convert The portion 91 has a first position and a second position in the cavity 112 , the elastic portion 130 is arranged between the conversion portion 91 and the frame body 11 , and the rider 13 is provided with an engaging portion (not shown in the figure). In the backward position, the engaging portion is engaged in the cavity 112 and pushes for conversion part 91, so that the conversion part 91 moves to the first position and compresses the elastic part 130; when the rider 13 is in the forward position, the engaging part leaves the cavity 112, so that the elastic part 130 pushes the conversion part 91 to move to the second position; The first pulling member 93 is driven by the engaging portion to rotate and switch between the first position and the second position, so that one of the first wheel locking portion 22 and the second wheel locking portion 32 is located at the unlocking position , the other of the first wheel locking portion 22 and the second wheel locking portion 32 is in the locked position. Wherein, when the engaging portion pushes the converting portion 91 to slide and compress the elastic portion 130, the engaging portion can be engaged in the cavity 112, and when the engaging portion releases the converting portion 91, the engaging portion exits the cavity 112, but does not This is the limit. The first pulling member 93 has a pulling end 1101 and a pulling second end 1102, the pulling end 1101 is connected to the first wheel locking part 22, the pulling second end 1102 is fixedly connected to the conversion part 91, and a pulling end 1101 and the pulling second end 1102 are provided with The third traction end 1103 is connected to the second wheel locking portion 32 , preferably, the frame 10 is provided with a pivot portion 113 , and the traction end 1101 extends from the first wheel locking portion 22 to the second traction end 1102 , and is wound around At the pivot portion 113, it then extends to the third end 1103 of the traction.

Referring to FIGS. 31 to 33 , by reversing the direction of the driver 13 between the forward position and the rearward position, the wheels 15 on the same side as the driver 13 are locked in the orientation relative to the frame body 11 while the wheels 15 on the other side can be opposite to the vehicle. The frame body 11 rotates, and in another embodiment to realize this principle, the first pulling member 93 includes a first pulling member 651 and a second pulling member 661, one end of the first pulling member 651 is connected to the conversion part 91, and the first pulling member The other end of the 651 is fixedly connected to the first wheel locking portion 22, one end of the second traction member 661 is connected to the conversion portion 91, and the other end of the second traction member 661 is fixedly connected to the second wheel locking portion 32. Rotate the switching portion 91 between the forward position and the backward position to drive the first traction member 651 and the second traction member 661, so that the first traction member 651 pulls the first wheel locking portion 22 from the locked position to the unlocked position position, and the second pulling member 661 releases the second wheel locking portion 32 from the unlocking position to the locking position, or the second pulling member 661 pulls the second wheel locking portion 32 from the locking position to the unlocking position, On the other hand, the first traction member releases the first wheel locking portion 22 from the unlocking position to the locking position. Specifically, the first pulling member 651 and the second pulling member 661 are fixedly connected to the conversion portion 91 at an interval. More specifically, the frame body 11 includes a front foot 613 and a rear foot 614 . The front foot 613 , the rear foot 614 and the rider 13 are pivotally connected coaxially. Inside, the first wheel rotating portion 21 is pivotally connected to the bottom of the front foot 13 , and the second wheel rotating portion 31 is pivotally connected to the bottom of the rear foot 14 .

Please continue to refer to FIGS. 31 to 33 , when the rider 13 turns to the same side as the first wheel 20 , the rider releases the first traction member 651 , so that the first traction member 651 releases the first wheel locking portion 22 and the first wheel locks The first wheel rotating part 22 is slid and inserted on the first wheel rotating part 21, thereby locking the first wheel rotating part 21, so that the first wheel rotating part 21 is oriented relative to the frame body 11; while the rider 13 rotates, it will also pull the second traction member 661 , the second traction member 661 pulls the second wheel locking portion 32 to slide out of the second wheel rotating portion 31 , thereby releasing the second wheel rotating portion 31 , and the second wheel rotating portion 31 can rotate relative to the frame body 11 . When the rider 13 turns to the same side as the second wheel 30, the rider 13 pulls the first traction member 651, and the first traction member 651 pulls the first wheel locking portion 22 to withdraw from the first wheel rotating portion 21, thereby releasing the first wheel The rotating part 21 allows the first wheel rotating part 21 to rotate relative to the front foot 613 of the frame body 11; the rotation of the rider 13 also releases the second traction member 661, and the second traction member 661 releases the second wheel locking part 32, so that the The second wheel locking portion 32 slides and is inserted into the second wheel rotating portion 31 , thereby locking the second wheel rotating portion 31 , so that the second wheel rotating portion 31 is oriented relative to the rear foot 614 of the frame body 11 . The child carrier 100 further includes a first wheel reset member 23 and a second wheel reset member 34. The first wheel reset member 23 cooperates with the first wheel locking portion 22, and the first wheel reset member 23 keeps the second wheel locking portion 32 facing the When moving in the direction of the locking position, the second wheel restoring member 34 cooperates with the second wheel restoring member 34 of the second wheel locking portion 32 , and the second wheel restoring member 34 constantly moves the second wheel locking portion 32 toward the locking position. When the first traction member 651 pulls the first wheel locking portion 22 to exit the first wheel rotating portion 21, the first wheel locking portion 22 compresses the first wheel restoring member 23; when the first traction member 651 releases the first wheel locking portion 22 , the first-round locking part 22 can be Under the action of the elastic restoring force of the one-wheel reset element 23 , it is quickly reset and re-inserted on the first-wheel rotating part 21 . When the second traction member 661 pulls the second wheel locking portion 32 to slide out of the second wheel rotating portion 31 , the second wheel locking portion 32 compresses the second wheel reset member 34 ; the second wheel locking portion is released at the second traction member 661 . At 32 o'clock, the second wheel locking portion 32 can be quickly reset and re-inserted on the second wheel rotating portion 31 under the action of the elastic restoring force of the second wheel restoring member 34 .

32 and 33, in another embodiment of the present invention, a first guide member 6511 is fixed in the middle of the first traction member 651, and the first guide member 6511 is slidably disposed in the frame body 11. The movement of a guide member 6511 can drive the first guide member 6511 to slide, and the first guide member 6511 plays a guiding and connecting role for the first traction member 651; It is slidably arranged in the frame body 11 , the movement of the second traction member 661 can drive the second guide member 6611 to slide, and the second guide member 6611 plays a guiding and connecting role for the second traction member 661 . Wherein, the first traction member 651 can be separated into two parts and connected to the first guide member 6511, and the second traction member 661 can be separated into two parts and connected to the second guide member 6611, but not limited thereto, for example, the first guide member The 6511 can be an integral structure and connected to the first pulling member 651 , and the second guiding member 6611 can be an integral structure and connected to the second pulling member 661 . Further, the child carrier 100 further includes a first guide reset member 6512 and a second guide reset member 6612, the first guide reset member 6512 is disposed between the first guide member 6511 and the frame body 11, and the first guide reset member 6512 Used to reset the first guide piece 6511 , the second guide reset piece 6612 is disposed between the second guide piece 6611 and the frame body 11 , and the second guide reset piece 6612 is used to reset the second guide piece 6611 . When the first traction member 651 pulls the first wheel locking portion 22 to exit the first wheel rotating portion 21, the first traction member 651 also pulls the first guide member 6511 to slide, and the first guide member 6511 compresses the first guide reset member 6512; When the first traction member 651 releases the first wheel locking portion 22 , the first guide member 6511 can be quickly reset under the action of the elastic restoring force of the first guide reset member 6512 . Pull the second wheel at the second traction member 661 When the locking portion 32 slides out of the second wheel rotating portion 31, the second traction member 661 will pull the second guide member 6611, so that the second guide member 6611 compresses the second guide reset member 6612; the second traction member 661 releases the second wheel When the portion 32 is locked, the second guide member 6611 can be reset under the action of the elastic restoring force of the second guide reset member 6612 .

Referring to FIGS. 34 to 38 , in yet another embodiment, the switching portion 91 is provided with a locking pin 6241 , the rider 13 is provided with a locking hole 6231 , the locking pin 6241 is inserted into the locking hole 6231 , and the first traction member 651 is connected to the locking hole 6231 . The second pulling members 661 are respectively connected to the driving members 51 . When the driver 13 rotates, the driving member 51 will rotate together with the direction change of the driver 13 . Further, the frame body 11 is provided with a sliding slot 611 along the rotation direction of the rider 13 , the locking pin 6241 is provided with a latch 6241 , and the latch 6241 is inserted into the slide slot 611 and can slide along the slide slot 611 . The locking pin 6241 is slidably disposed on the driving member 51 along the pivot axis direction of the rider 13 and the frame body 11 . The two ends of the sliding slot 611 are connected with the inclined slot 612 , and the latch 6241 slides to the inclined slot 612 to drive the The latch 6241 slides out of the locking hole 6231 . Furthermore, a first elastic restoring member 6243 is disposed between the locking pin 6241 and the driving member 51 , and the first elastic restoring member 6243 constantly moves the locking pin 6241 toward the direction of being inserted into the locking hole 6231 . When the latch 6241 slides from the sliding groove 611 to one of the inclined grooves 612 , the latch 6241 will drive the locking pin 6241 to slide relative to the driving member 51 under the action of the inclined groove 612 , so that the locking pin 6241 exits the locking hole of the pivot portion of the rider 13 6231, so that the rider 13 can cooperate with the frame body 11 to be folded. During this process, the locking pin 6241 will compress the first elastic restoring member 6243. When the latch 6241 slides from one of the inclined grooves 612 into the sliding groove 611 , the locking pin 6241 can slide quickly under the elastic restoring force of the first elastic restoring member 6243 and re-insert into the locking hole 6231 .

Referring to FIGS. 39 and 40 , in another embodiment in which both the first wheel 20 and the second wheel 30 can be rotated relative to the frame body 11 through the operation of the operation part 40 , the operation part 40 includes an operation button 7 and a driving wheel 811 , the driving wheel 811 is pivotally connected in the driver 13, and the driving wheel 811 is in conflict with the operation button 7, and is linked The mechanism 90 is respectively connected with the driving wheel 811 , the first wheel locking part 22 and the second wheel locking part 32 , and the operating button 7 slides and pushes the driving wheel 811 to rotate, so that the driving wheel 811 pulls the linkage mechanism 90 , thereby driving the first wheel The wheel locking portion 22 withdraws from the first wheel rotating portion 21 or drives the second wheel locking portion 32 to withdraw from the second wheel rotating portion 31 . More specifically, the linkage mechanism 90 includes a first traction portion 812a, a second traction portion 812b, and a third traction portion 812c. One end of the first traction portion 812a is fixedly connected to the driving wheel 811, and the other end of the first traction portion 812a is respectively connected to the driving wheel 811. The second traction portion 812b and the third traction portion 812c are fixedly connected, the second traction portion 812b is fixedly connected with the first wheel locking portion 22 , and the third traction portion 812c is fixedly connected with the second wheel locking portion 32 . When the rider 13 turns to the same side as the first wheel 20, the first wheel locking portion 22 is inserted into the first wheel turning portion 21, thereby orienting the first wheel turning portion 21, and the second wheel turning portion 31, At this time, if the first wheel rotating part 21 needs to rotate relative to the frame body 11, the operation button 7 can be pressed to make the operation button 7 slide and push the driving wheel 811 to rotate, so that the driving wheel 811 pulls the first traction part 812a, The second traction portion 812b and the third traction portion 812c move upward, thereby driving the first wheel locking portion 22 to move upward and withdraw from the first wheel rotating portion 21 , thereby releasing the first wheel rotating portion 21 so that the first wheel rotating portion 21 It can rotate relative to the frame body 11 , so that both the first wheel rotating part 21 and the second wheel rotating part 31 can rotate simultaneously, that is, both the first wheel 20 and the second wheel 30 can rotate relative to the frame body 11 . When the rider 13 turns to the same side as the second wheel 30 , the second wheel locking portion 32 is inserted into the second wheel turning portion 31 , thereby orienting the second wheel turning portion 31 while the first wheel 30 can be opposite to The frame body 11 rotates. At this time, if the second wheel rotating part 31 needs to rotate relative to the frame body 11, the operation button 7 can be pressed to make the operation button 7 slide and push the driving wheel 811 to rotate, so that the driving wheel 811 can be pulled The first traction portion 812a, the second traction portion 812b and the third traction portion 812c move upward, thereby driving the second wheel locking portion 32 to move upward and exit the second wheel rotating portion 31, thereby releasing the second wheel rotating portion 31, so that The second wheel rotating part 31 is rotatable, so that both the first wheel rotating part 21 and the second wheel rotating part 31 can rotate relative to the frame body 11 at the same time, that is, both the first wheel 20 and the second wheel 30 can be relative to the frame body 11 Turn.

Referring to FIGS. 41 to 46 , by reversing the direction of the driver 13 between the forward position and the rearward position, the wheel 15 on the same side as the driver 13 is locked and oriented while the wheel 15 on the other side can rotate relative to the frame body 11 , In yet another embodiment to realize this principle, one end of the first traction member 651 is provided with a first sliding block 653, the other end of the first traction member 651 is fixedly connected with the first wheel locking portion 22, and the first sliding block 653 is slidable. One end of the second traction member 661 is provided with a second sliding block 663, the second sliding block 663 is slidably arranged on the frame body 11, and the other end of the second traction member 661 is connected to the first sliding block 663. The two-wheel locking portion 32 is fixedly connected, and the driver 13 is provided with a pushing protrusion 621 . The driver 13 drives the pushing protrusion 621 to rotate, so that the pushing protrusion 621 pushes the first slider 653 and drives the first traction member 651 , so as to drive the first wheel locking portion 22 to move from the locking position to the unlocking position, or make the pushing protrusion 621 push the second sliding block 663 and drive the second traction member 661 to drive the second wheel locking portion 32 from The lock position moves to the lock release position. Specifically, the pushing protrusion 621 pushes the first sliding block 653 or the second sliding block 663 through the inclined surface, but it is not limited thereto. For example, the pushing protrusion 621 pushes the first sliding block through the oblique long groove. 653 or second slider 663.

Please refer to FIGS. 46 to 48 , when the driver 13 rotates to the same side as the first wheel, the driver 13 rotates together with the pushing protrusion 621 , and the pushing protrusion 621 pushes the second slider 663 , so that the second sliding block 663 is pushed up. The block 663 slides up and pulls the second traction member 661 to move up, the second traction member 661 pulls the second wheel locking portion 32 to slide, so that the second wheel locking portion 32 exits the second wheel rotating portion 31 and compresses the second wheel reset member 34 , thereby releasing the second wheel rotating part 31, the second wheel rotating part 31 can rotate relative to the frame body 11, and at this time, the first wheel locking part 22 is inserted into the first wheel rotating part 21 and locks the first wheel rotation Part 21 , the first wheel rotation part 21 is oriented relative to the frame body 11 . When the driver 13 rotates to the same side as the second wheel, the driver 13 rotates together with the pushing protrusion 621, and the pushing protrusion 621 pushes the first slider 653 to slide and no longer pushes the second slider 663. The two sliding blocks 663 are quickly inserted into the second wheel rotating portion 31 under the action of the elastic restoring force of the second wheel restoring member 34, thereby locking the second wheel rotating portion 31, and the second wheel rotating portion 31 is oriented relative to the frame body 11; And the first The sliding of the slider 653 will pull the first traction member 651 upward, and the first traction member 651 will pull the first wheel locking portion 22 to slide, so that the first wheel locking portion 22 exits the first wheel rotating portion 21 and compresses the first wheel reset member 23 , thereby releasing the first wheel rotating part 21 , and the first wheel rotating part 21 can rotate relative to the frame body 11 . When the rider 13 turns to the same side as the first wheel again, the first wheel locking portion 22 can be quickly inserted into the first wheel rotating portion 21 under the action of the elastic restoring force of the first wheel restoring member 23 .

Referring to FIGS. 50 to 53 , in another embodiment in which both the first wheel 15 and the second wheel 15 can be rotated relative to the frame body 11 through the operation of the operation part 40 , the linkage mechanism 90 includes the operation traction part 55 , the linkage 821, the first top block 822 and the second top block 823, one end of the operating traction part 55 is connected with the operating part 40, and the other end of the operating traction part 55 is connected with the linking piece 821, and the linking piece 821 is slidably arranged on the rider 13 , the first top block 822 and the second top block 823 are in contact with the two sides of the linking member 821 respectively; when the driver 13 rotates to the forward position, the first top block 822 is in contact with the first slider 653; the driver 13 rotates to In the rearward position, the second top block 823 is in contact with the second sliding block 663 ; the operating part 55 is pulled by the operating part 40 to move together with the linking piece 821 to push the first top block 822 and the second sliding block 663 , so that the first top block 822 pushes the first slider 653 to slide, so that the first traction member 651 pulls the first wheel locking portion 22 from the locked position to the unlocked position, or, the second top block 823 pushes the first The two sliders 663 slide, so that the second pulling member 661 pulls the second wheel locking portion 32 from the locking position to the unlocking position. Specifically, the linking member 821 is connected to the first top block 822 and the second top block 823 respectively through the inclined surface, the first top block 822 is connected to the first slider 653 through the inclined surface, and the second top block 823 is connected to the second top block 823 through the inclined surface. The sliding blocks 663 are in contact with each other; the sliding direction of the first top block 822 is the same as the sliding direction of the second top block 823 , and the sliding direction of the first top block 822 is perpendicular to the sliding direction of the linkage 821 . Further, the child carrier 100 further includes a second elastic restoring member 824 and a third elastic restoring member 825. The second elastic restoring member 824 is provided with It is placed between the first top block 822 and the rider 13 and used to reset the first top block 822 , and the third elastic reset member 825 is disposed between the second top block 823 and the rider 13 and used to reset the second top block 823 .

Please refer to FIG. 54 , in conjunction with FIGS. 49 and 50 , when the rider 13 rotates to the same side as the first wheel 20 , the first top block 822 is in contact with the first slider 653 , and the second top block 823 is not connected to the first block 823 . The two sliders 663 are in conflict, and the operation button 7 can be pressed to slide and push the driving wheel 811 to rotate, so as to pull the operation traction part 55, so that the operation traction part 55 pulls the linking member 821, so that the linking member 821 pushes the first top block 822 and The second top block 823 slides, so that the first top block 822 pushes the first sliding block 653 upward and compresses the second elastic reset member 824. The upward movement of the first sliding block 653 can pull the first traction member 651 and the first wheel The locking portion 22 moves, so that the first-wheel locking portion 22 withdraws from the first-wheel rotating portion 21 and releases the first-wheel rotating portion 21, so that the first-wheel rotating portion 21 can rotate relative to the frame body 11. The second wheel locking part 32 also withdraws from the second wheel rotating part 31 and releases the second wheel rotating part 31 , so the first wheel rotating part 21 and the second wheel rotating part 31 can rotate relative to the frame body 11 at the same time. When the operation button 7 is released, the first top block 822 can be reset under the action of the elastic restoring force of the second elastic restoring member 824, the first sliding block 653, the first traction member 651 and the first wheel locking part 22 are also reset, the first The wheel locking portion 22 relocks the first wheel rotating portion 21 .

Please refer to FIGS. 55 and 56 , and in conjunction with FIGS. 53 and 53 , when the rider 13 turns to the same side as the second wheel 30 , the first top block 822 is no longer in contact with the first slider 653 , and the second top block 822 is no longer in contact with the first slider 653 . The block 823 is in contact with the second sliding block 663, and can be slid by pressing the operation button 7 and pushes the driving wheel 811 to rotate, so as to pull the operation traction part 55, so that the operation traction part 55 pulls the linking member 821, so that the linking member 821 pushes the first A top block 822 and a second top block 823 slide, so that the second top block 823 pushes the second sliding block 663 upward and compresses the third elastic restoring member 825. The upward movement of the second sliding block 663 can pull the second traction member 661 and the second wheel locking portion 32 move, so that the second wheel locking portion 32 withdraws from the second wheel rotating portion 31 and releases the second wheel rotating portion 31, so that the second wheel rotating portion 31 can rotate relative to the frame body 11, At this time, the first-round locking portion 22 It also withdraws from the second wheel rotating part 31 and releases the second wheel rotating part 31 , so that the first wheel rotating part 21 and the second wheel rotating part 31 can rotate relative to the frame body 11 at the same time. When the operation button 7 is released, the second top block 823 can be reset under the action of the elastic restoring force of the third elastic restoring member 825, the second sliding block 663, the second traction member 661 and the second wheel locking part 32 are also reset, the second The wheel locking portion 32 relocks the second wheel rotating portion 31 .

The above description is based on various embodiments of the present invention, wherein various features may be implemented in a single or different combination. Therefore, the disclosure of the embodiments of the present invention are specific examples to illustrate the principles of the present invention, and the present invention should not be limited to the disclosed embodiments. Further, the foregoing description and the accompanying drawings are only used for exemplary purposes of the present invention, and are not limited thereto. Changes or combinations of other elements are possible without departing from the spirit and scope of the present invention.

100: Children's Vehicles

10: Frame

11: Frame body

13: Drivers

15: Wheels

20: First round

21: The first round of rotation

30: Second round

31: Second wheel rotating part

301: Left second round

303: Right second round

Claims (41)

A child carrier includes a frame and a wheel arranged on the frame, the wheel includes a first wheel and a second wheel, the first wheel is rotatable relative to the frame, and also includes a second wheel that rotates a second wheel locking part and an operating part, wherein the second wheel is pivotally connected to the second wheel rotating part, the second wheel rotating part is pivotally connected to the frame, and the second wheel is locked The second wheel rotation part has a lock position and a lock release position relative to the second wheel rotation part, and the second wheel lock part releases the second wheel rotation part to realize the rotation of the second wheel rotation part relative to the frame; The second wheel locking part locks the second wheel rotation part to realize the directional movement of the second wheel relative to the frame; the operation part is arranged on the frame, and the operation part is operated to achieve the desired The second wheel locking portion is shifted from the locking position to the unlocking position. The child carrier according to claim 1, further comprising a second wheel reset member that cooperates with the second wheel locking portion, the second wheel reset member constantly makes the second wheel locking portion move toward the locking position directional movement. The child carrier according to claim 1, wherein the second wheel locking portion is movably provided between the second wheel turning portion and the frame, and the second wheel turning portion is provided with a first wheel Two wheel positioning grooves, the second wheel locking part is inserted into the second wheel positioning groove for locking, and restricts the rotation of the second wheel rotating part relative to the frame; the second wheel locking part is separated from the first wheel The second wheel positioning slot is unlocked, and the second wheel rotating part can be rotated relative to the frame. The child carrier according to claim 1, wherein the operating portion abuts against the second wheel locking portion, and the operating portion is operated to directly push the second wheel locking portion to realize the second wheel locking portion. The wheel lock portion is shifted from the locked position to the unlocked position. The child carrier according to claim 1, further comprising a linkage mechanism, the linkage mechanism is provided on the frame, and the operation portion is operated to drive the linkage mechanism to realize the second wheel locking portion The lock position transitions to the lock release position. The child carrier according to claim 5, wherein the linkage mechanism comprises a second-wheel traction part, one end of the second-wheel traction part is connected to the operation part, and the other end of the second-wheel traction part is connected For the second wheel locking portion, the operating portion is subjected to external force, and the second wheel locking portion is driven by the second wheel traction portion to release the locking portion. The child carrier according to claim 5, wherein the linkage mechanism comprises a driving part and a second wheel traction part, one end of the second wheel traction part is connected to one side of the driving part, and the second wheel traction part The other end of the traction part is connected to the second wheel locking part, the operating part is applied with an external force to drive the driving part to move, and the second wheel traction part is linked to drive the second wheel locking part to unlock. The child carrier according to claim 7, wherein the driving part comprises a driving part, a driving pin abutting against the driving part, and an operating traction part, and the second wheel traction part is located between the driving part and the driving part. Between the second wheel locking parts, one end of the operating pulling part is connected to the operating part, the other end of the operating pulling part is connected to the driving pin, and the operating part drives the driving through the operating pulling part The pin moves, and the drive pin drives the drive member to release the second wheel locking portion. The child carrier according to claim 7, wherein the frame includes a frame body, the linkage mechanism further includes a second guide member, and the second guide member is slidably disposed in the frame body , the second guide member is connected with the traction part of the second wheel. The child carrier according to claim 9, wherein the traction part of the second wheel comprises a traction-pulling part and a traction-pulling part, and one end of the traction-pulling part is connected to the driving part, so The other end of the first traction and pulling part is connected with the second guide member, one end of the second traction and pulling part is connected with the second guide member, and the other end of the second traction and pulling part is locked with the second wheel Department connection. The child carrier according to claim 9, further comprising a second guide reset member, the second guide reset member is disposed between the second guide member and the frame body, the second guide The reset part is used to reset the second guide part. The child carrier of claim 5, wherein the frame includes a frame body and a rider pivotally connected to the frame body, and the child carrier further includes a first wheel rotation portion and a first wheel lock part, the first wheel is pivotally connected to the first wheel rotating part, the first wheel rotating part and the second wheel rotating part are respectively pivoted to the bottom of the frame body, the first wheel The locking portion has a locking position and a locking release position relative to the first wheel rotating portion, and the first wheel locking portion releases the first wheel rotating portion to realize the first wheel rotating relative to the frame, so The first wheel locking part locks the first wheel rotation part to realize the directional movement of the first wheel relative to the frame. The child carrier of claim 12, wherein the rider has a rearward position and a forward position relative to the frame body, with the rider between the rearward and forward positions so as to realize the directional movement of the wheel on the same side as the rider relative to the frame body, while the wheel on the other side rotates relative to the frame body. The child carrier according to claim 13, wherein the linkage mechanism comprises a driving part, a second wheel pulling part and a first wheel pulling part, and one end of the second wheel pulling part is connected to one side of the driving part , the other end of the traction part of the second wheel is connected to the locking part of the second wheel, one end of the traction part of the first wheel is connected to the other side of the driving part, and the other end of the traction part of the first wheel is connected The first wheel locking part, the operating part is connected with the driving part, and the operating part is driven by an external force to drive the driving part. The moving part moves to link the traction part of the second wheel and the traction part of the first wheel, thereby driving the locking part of the second wheel or the locking part of the first wheel to release the lock. The child carrier of claim 14, wherein when the rider is in the rearward position, the first wheel locking portion is in the unlocking position, the second wheel locking portion is in the locking position, and the use of The operating part drives the driving part to drive the second wheel traction part to drive the second wheel locking part to unlock, so that both the first wheel and the second wheel can rotate relative to the frame body ; When the driver is in the forward position, the first wheel locking portion is in the locking position, the second wheel locking portion is in the unlocking position, and the operating portion is used to drive the driving portion to drive the The traction part of the first wheel drives the locking part of the first wheel to release the lock, so that both the first wheel and the second wheel can rotate relative to the frame body. The child carrier according to claim 15, wherein the driving part comprises a driving part, a driving pin abutting against the driving part, and an operating pulling part, one end of the operating pulling part is connected to the operating part, and the The other end of the operating traction portion is connected to the driving pin, the operating portion drives the driving pin to move through the operating traction portion, and the driving pin drives the driving member to move to make the second wheel locking portion or The first wheel locking part is released. The child carrier according to claim 16, wherein the driving member is provided with a first perforation and a second perforation at a certain distance, one end of the first wheel traction part is connected to the first perforation, and the first perforation is connected to the first perforation. One end of the two-wheel traction part is connected to the second perforation; when the driver is in the rearward position, the first perforation and the second perforation are in the first position, and the operation part is driven by the operation traction part The drive pin moves, and the drive pin drives the drive member to rotate so that the first through hole and the second through hole are in a second position, urging the The traction part of the first wheel and the traction part of the second wheel move a certain distance, so that the locking part of the second wheel is unlocked; when the rider is in the forward position, the first perforation and the second perforation are located in the first and second perforations. In three positions, the operating portion drives the driving pin to move through the operating traction portion, and the driving pin drives the driving member to rotate so that the first through hole and the second through hole are located in the fourth position, so as to promote The traction part of the first wheel and the traction part of the second wheel move a certain distance, so that the locking part of the first wheel is unlocked. The child carrier according to claim 13, further comprising a conversion part and a first pulling member, the first pulling member is connected to the conversion part, and one end of the first pulling member is fixedly connected to the first pulling member a wheel locking portion, the other end of the first pulling member is fixedly connected to the second wheel locking portion, and the driver switches between the rearward position and the forward position to drive the conversion portion to move, The first pulling member is linked to move, so as to realize the directional movement of the wheel on the same side as the driver relative to the frame body, while the wheel on the other side rotates relative to the frame body. The child carrier of claim 13, further comprising a conversion part and a first pulling member, the conversion part being mounted between the rider and the frame body, the first pulling member being connected to the conversion The first end of the first pulling member is fixedly connected to the first wheel locking portion, and the second end of the first pulling member is fixedly connected to the second wheel locking portion. The conversion between the rearward position and the forward position drives the conversion part to move, and moves the first pulling member in conjunction with it, so as to realize the directional movement of the wheel on the same side as the driver relative to the frame body, while the wheel on the other side moves in a direction relative to the frame body. The wheel rotates relative to the frame body. The child carrier according to claim 19, wherein the conversion part comprises a rotating body and a fixing pin, the rotating body has a first rotating position and a second rotating position, and is provided with an installation place. the groove of the fixing pin, the fixing pin is connected to the first pulling member fixed between the first end and the second end, the rider is switched between the rearward position and the forward position, The rotating body is driven to switch between the first rotating position and the second rotating position. The child carrier according to claim 19, wherein the linkage mechanism comprises an operation pulling part, the operation pulling part has a connecting end, a second connecting end and a third connecting end, the connecting end is connected to the operation part, the The second connecting end is fixedly connected with the first end of the first pulling member, and the third connecting end is fixedly connected with the second end of the first pulling member. The child carrier according to claim 19, wherein the linkage mechanism comprises an operation pulling part, the operation pulling part has one connecting end, two connecting ends and three connecting ends, and the connecting end is connected to the operation part, The two connecting ends are fixedly connected with the first wheel locking portion, and the third connecting ends are fixedly connected with the second wheel locking portion. The child carrier according to claim 21 or 22, wherein the linkage mechanism further comprises a first connecting member and a second connecting member, and the first connecting member of the first pulling member is implemented by the first connecting member. One end and/or the connecting two ends of the operating pulling part are fixedly connected to the first wheel locking part; the second end and/or the first pulling part is realized by the second connecting piece Or the connecting three ends of the operating traction part are fixedly connected with the second wheel locking part. The child carrier according to claim 21 or 22, wherein the operation pulling part comprises a third pulling member and a fourth pulling member, the third pulling member has the connecting one end and the connecting four ends, the first pulling member The fourth pulling member has the second connecting end and the third connecting end, the fourth connecting end is fixedly connected to the fourth pulling member, and the connection point is located between the second connecting end and the third connecting end. The child carrier according to claim 24, wherein the linkage mechanism further comprises a connecting body and a rotating body, the connecting body has a rotating space, and the rotating body is located in the rotating space and is pivotally connected In the connecting body, the four connecting ends are fixedly connected with the connecting body, and the fourth pulling member passes through between the rotating body and the connecting body and can be pulled by the rotating body. The child carrier according to claim 24, wherein the operation part comprises a button part and a push part connected with the button part, the connecting end of the operation traction part is connected with the push part, the The button portion is operated to drive the push portion to move, so as to pull the operating traction portion to release the wheel in the locked position and to be in the unlocked position. The child carrier according to claim 13, wherein the child carrier further comprises a first wheel reset member and a second wheel reset member, the first wheel reset member is matched with the first wheel locking portion, so The first-wheel reset part constantly moves the second-wheel locking part toward the locking position; the second-wheel reset part cooperates with the second-wheel reset part; The wheel reset member constantly moves the second wheel locking portion toward the locking position. The child carrier of claim 27, wherein the child carrier includes a conversion portion and a first pulling member, the conversion portion is mounted between the rider and the frame body, the conversion portion has In the first rotation position and the second rotation position, one end of the first pulling member is connected to the first wheel locking portion, the middle portion of the first pulling member is wound around the second wheel locking portion, and the first The other end of a pulling member is connected to the conversion part, and the driver rotates and drives the conversion part to switch between the first rotation position and the second rotation position, so as to drive the first pulling actuates so that one of the first wheel locking portion and the second wheel locking portion is located at the lock release position, and the other of the first wheel locking portion and the second wheel locking portion in the locked position. The child carrier of claim 28, wherein the restoring force of the second wheel restoring member is greater than the restoring force of the first wheel restoring member. The child carrier according to claim 29, wherein the conversion part comprises a rotating body, the rotating body is provided with a first rotating convex part and a second rotating convex part, the frame is provided with a rotating groove, and the rotating body is provided with a rotating groove. A first limiting portion and a second limiting portion are arranged in the groove, the rotating body is located in the rotating groove and is pivotally connected with the frame, and the first limiting portion is located on the first rotating convex portion The second limiting portion is located in the interval on the other side of the first rotating convex portion and the second rotating convex portion. The child carrier of claim 13, wherein the child carrier comprises a first pulling member, a conversion part and an elastic part, one end of the first pulling member is connected with the first wheel locking part, the The other end of the first pulling member is connected to the second wheel locking portion, the conversion portion is fixedly connected between two ends of the first pulling member, the frame body is provided with a cavity, and the conversion portion is The conversion part is slidably disposed in the cavity, the conversion part has a first position and a second position in the cavity, and the elastic part is disposed between the conversion part and the frame body, The driver is provided with an engaging part; when the driver is in the rearward position, the engaging part is engaged in the cavity and pushes the conversion part, so that the conversion part moves to the desired position. the first position and compress the elastic part; when the rider is in the forward position, the engaging part leaves the cavity, so that the elastic part pushes the conversion part to move to the first position Two positions; the conversion part moves between the first position and the second position to drive the first pulling member to move, so that the first wheel locking part and the second wheel are locked One of the locking portions is located at the lock release position, and the other of the first wheel locking portion and the second wheel locking portion is located at the locking position. The child carrier of claim 19, wherein the first pulling member comprises a first pulling member and a second pulling member, one end of the first pulling member is connected to the conversion part, and the first pulling member The other end of the second traction member is fixedly connected to the first wheel locking portion, one end of the second traction member is connected to the conversion portion, and the other end of the second traction member is fixedly connected to the second wheel locking portion. The child carrier according to claim 32, wherein the first traction member and the second traction member are fixedly connected to the conversion portion at an interval. The child carrier according to claim 32, wherein one end of the first traction member is provided with a first sliding block, the other end of the first traction member is fixedly connected with the first wheel locking portion, and the The first sliding block is slidably arranged on the frame body, one end of the second traction member is provided with a second sliding block, and the other end of the second traction member is fixedly connected with the second wheel locking portion , the second sliding block is slidably arranged on the frame body, the driver is provided with a push protrusion, and the driver drives the push protrusion to rotate, so that the push protrusion is Pushing the first sliding block and driving the first traction member, so as to drive the first wheel locking portion to move from the locking position to the unlocking position, or make the pushing protrusion push The second sliding block drives the second traction member to drive the second wheel locking portion to move from the locking position to the unlocking position. The child carrier of claim 34, wherein the pushing protrusion pushes the first sliding block or the second sliding block through an inclined surface. The child carrier according to claim 35, wherein the child carrier further comprises a first wheel reset member and a second wheel reset member, the first wheel reset member is matched with the first wheel locking portion, so The first-wheel reset part constantly moves the second-wheel locking part toward the locking position; the second-wheel reset part cooperates with the second-wheel reset part; The wheel reset member constantly moves the second wheel locking portion toward the locking position. The child carrier according to claim 19, wherein a locking pin is provided on the conversion portion, a locking hole is provided on the rider, and the locking pin is inserted into the locking hole. The child carrier according to claim 34, wherein the operating portion is provided on the rider, and the linkage mechanism includes an operating traction portion, a linkage, a first top block and a second top block, the operating traction One end of the operating part is connected with the operating part, and the other end of the operating traction part is connected with the linking piece, the linking piece is slidably arranged on the rider, the first top block and the second top block The blocks are respectively contacted and connected to both sides of the linkage; when the driver rotates to the forward position, the first top block is connected to the first slider; the driver rotates to the rearward direction When in position, the second top block is in contact with the second sliding block; the operating part is pulled by the operating part to move together with the linking piece to push the first top block and the second sliding block. the second sliding block, so that the first top block pushes the first sliding block and slides, so that the first traction member pulls the first wheel locking part from the locking position to the locking release position, or the second top block pushes the second sliding block to slide, so that the second traction member pulls the second wheel locking portion from the locking position to the unlocking position. The child carrier according to claim 38, wherein the linking member is connected to the first top block and the second top block respectively through an inclined surface, and the first top block is connected to the first slider through an inclined surface. , the second top block is connected with the second sliding block through the inclined plane. The child carrier according to claim 39, further comprising a second elastic restoring member and a third elastic restoring member, wherein the second elastic restoring member is disposed between the first top block and the rider and is used to make all the The first top block is reset, and the third elastic reset member is disposed between the second top block and the driver and used to reset the second top block. The child carrier of claim 38, wherein the sliding direction of the first top block is the same as the sliding direction of the second top block, and the sliding direction of the first top block is the same as the sliding direction of the linkage member Orientation is vertical.

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