CN112092890A - a children's stroller - Google Patents

Abstract

The invention discloses a children's stroller, comprising a stroller frame and a seat assembly. The seat assembly includes a seat and a backrest. The backrest includes a first backrest and a second backrest. The lower part of the first backrest is rotatably connected with the rear part of the seat. The upper part of the backrest is rotatably connected with the lower part of the second backrest, the seat assembly further includes a locking mechanism for locking the positions of the first backrest and the second backrest, and the stroller further includes a first driving member that drives the locking mechanism to unlock when it is folded A second driving member that drives the first backrest, the second backrest and the seat to rotate relative to the cart frame after unlocking the locking mechanism, the first driving member is respectively connected with the locking mechanism and the cart frame, and the second driving member are respectively connected with the second backrest and the cart frame. When the stroller is folded, the rotation of the rods that make up the stroller frame can drive the locking mechanism to unlock, and drive the two parts of the backrest and the seat to rotate with each other to be close to the stroller frame, which makes the folding operation of the stroller convenient. .

Description

a children's stroller

technical field

The invention relates to the technical field of children's products, in particular to a children's stroller.

Background technique

The stroller provides great convenience for adults to carry smaller children for outdoor activities, so the stroller has gradually become a necessity for adults to carry children for outdoor activities. A stroller generally includes a seat assembly, and the seat assembly includes a seat and a backrest. In the prior art, the backrest is an integral structure, so that when the stroller is folded, the overall structure is still large due to the influence of the backrest. In order to make the folded structure smaller in some strollers, the backrest is divided into two parts, but there is no locking mechanism between the two parts, and it is only fixed by a cloth cover. When the stroller is in the unfolded state, the backrest is easy to collapse and cannot be play an effective supporting role. There are also some strollers that divide the backrest into two parts and lock them by a locking mechanism, but when the stroller is folded, the locking mechanism needs to be operated separately, and the folding and unfolding operations between the two parts of the backrest also need to be performed separately, so that the child pushes The folding and unfolding of the car is inconvenient.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an improved stroller for children in view of the deficiencies in the prior art.

To achieve the above object, the technical scheme adopted in the present invention is:

A child stroller includes a stroller frame and a seat assembly arranged on the stroller frame, the seat assembly including a seat and a backrest rotatably connected with the seat, the backrest including a first a backrest and a second backrest arranged above the first backrest, the lower part of the first backrest is rotatably connected with the rear part of the seat, the upper part of the first backrest and the lower part of the second backrest In rotational connection, the seat assembly further includes a locking mechanism for locking the relative positions of the first backrest and the second backrest, and the stroller further includes a locking mechanism for driving the stroller when the stroller is folded a first driving member unlocked by the locking mechanism and a second driving member that drives the first backrest, the second backrest and the seat to rotate relative to the cart frame after the locking mechanism is unlocked, The first driving members are respectively connected with the locking mechanism and the cart frame, and the second driving members are respectively connected with the second backrest and the cart frame.

Preferably, the first driving member is a first flexible connecting member, two ends of the first flexible connecting member are respectively fixed on the locking mechanism and the cart frame, and the second driving member It is a second flexible connecting piece, and two ends of the second flexible connecting piece are respectively fixed on the second backrest and the frame of the cart.

Further, when the stroller is in the unfolded state, the first backrest and the second backrest are located in the same plane, the backrest as a whole extends in the up-down direction, and the first flexible connecting piece is independent from the The connection of the locking mechanism extends downward along the extending direction of the backrest and is connected with the cart frame.

Further, when the stroller is in the unfolded state, the first backrest and the second backrest are located in the same plane, the backrest as a whole extends in the up-down direction, the seat extends in the front-rear direction, and the first backrest extends in the front-rear direction. Two flexible connectors extend downward from the connection with the second backrest along the extension direction of the backrest to the seat position, and extend forward along the extension direction of the seat to connect with the cart frame .

Preferably, the locking mechanism is respectively provided on the left and right sides of the backrest, the stroller frame includes side brackets respectively arranged on the left and right sides of the child stroller, the first driving member and the The second driving members are respectively arranged on the left and right sides of the stroller. The first driving members on each side are respectively connected with the locking mechanism and the side bracket on the corresponding side. The second driving members are respectively connected with one side portion of the second backrest and the side brackets on the corresponding side.

Preferably, the cart frame includes a plurality of rods, the first driving member and the second driving member are connected to different rods, or the first driving member and the second driving member The drive members are connected at different positions on the same rod member.

Preferably, the locking mechanism includes a locking member fixedly disposed on the second backrest and a sliding member slidably disposed on the first backrest and capable of engaging or disengaging with the locking member, when When the locking mechanism is in a locked state, the locking member is matched with the sliding member, and when the locking mechanism is in an unlocked state, the cooperation between the locking member and the sliding member is disengaged.

Preferably, the lower part of the first backrest and the rear part of the seat are rotatably connected through a first shaft, and the upper part of the first backrest and the lower part of the second backrest are rotatably connected through a second shaft. When the stroller is in the unfolded state, the first backrest and the second backrest are located in the same plane, the backrest as a whole extends in the up-down direction, the seat extends in the front-rear direction, and the first axis is located in the Below the second axis, when the stroller is in the folded state, the seat and the backrest both extend in the up-down direction, the first backrest and the second backrest are arranged in parallel, and the seat is located at the Above the first backrest, the first axis is located above the second axis.

Preferably, the cart frame includes a front bracket for mounting a front wheel assembly, a rear bracket, an upper push rod assembly, a lower push rod, a side link, a front link and a rear link, and the rear bracket includes a rear An upper rod and a rear lower rod slidably arranged on the rear upper rod along the lengthwise extending direction of the rear upper rod, the rear wheel assembly is arranged below the rear lower rod, and the upper part of the lower push rod is connected to the rear upper rod. The lower part of the upper push rod assembly is rotatably connected, the lower push rod is rotatably connected with the rear upper rod, the upper part of the front bracket, the upper part of the rear bracket and the lower part of the side link are three Two of the components are rotatably connected, the third component is rotatably connected with any one of the two components, or the above three components are rotatably connected on the same axis, and the upper part of the side link is connected to the push-up The lower part of the rod assembly is rotatably connected, one end of the front link is rotatably connected with the front bracket, the other end of the front link is rotatably connected with the lower part of the lower push rod, and the front The other end of the connecting rod and the lower part of the lower push rod are also slidably arranged relative to each other; It is rotatably connected with the rear lower rod.

Further, both the first driving member and the second driving member are respectively connected with the lower push rod.

Due to the application of the above technical solutions, the present invention has the following advantages compared with the prior art: the stroller of the present invention has a simple structure, the backrest is divided into upper and lower parts, and the two parts can be rotated relative to each other, and the two parts are locked by a locking mechanism. The position between the parts is locked, so that when the stroller is used in the unfolded state, the overall structure of the backrest is stable and can effectively support the child; and when the stroller is folded, the rods that make up the stroller frame rotate relative to each other. When the locking mechanism is unlocked, when the locking mechanism is unlocked, the rods that make up the cart frame can also be driven to rotate between the two parts of the backrest and the seat to move closer to the cart frame when the rods that make up the cart frame are relatively rotated. The operation unlocks the locking mechanism and folds the seat assembly without a separate operation, so that the folding operation of the stroller is convenient, and the folded stroller has a compact structure, a small volume, and is easy to carry and store.

Description of drawings

Accompanying drawing 1 is the side view of the stroller of the present invention;

2 is a side view of the seat assembly of the stroller of the present invention (with the cloth cover removed);

3 is a front view of the seat assembly of the stroller of the present invention (with the cloth cover removed);

4 is a schematic structural diagram of the locking mechanism of the stroller according to the present invention (front view, the stroller is in an unfolded state, and the locking mechanism is in a locked state);

Figure 5 is a schematic structural diagram of the locking mechanism of the stroller of the present invention (side view, the stroller is in an unfolded state, and the locking mechanism is in a locked state);

6 is a schematic structural diagram of the locking mechanism of the stroller of the present invention (front view, the stroller is in a folded state, and the locking mechanism is in an unlocked state);

7 is a schematic structural diagram of the locking mechanism of the stroller of the present invention (side view, the stroller is in a folded state, and the locking mechanism is in an unlocked state);

8 is a side view of the stroller of the present invention during folding;

9 is a side view of the stroller of the present invention in a folded state;

10 is a side view of the seat assembly of the stroller of the present invention during the folding process;

11 is a side view of the seat assembly of the stroller of the present invention in a folded state.

Detailed ways

The technical solutions of the present invention will be further elaborated below with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1 , FIG. 8 and FIG. 9 , the baby stroller of the present invention includes a stroller frame 1 , a front wheel assembly 50 arranged at the bottom front of the stroller frame 1 , a front wheel assembly 50 arranged on the stroller frame 1 Bottom rear rear wheel assembly 60 and seat assembly 2 provided on the cart frame 1 .

The seat assembly 2 includes a seat 21 , a backrest, and a cloth cover (not shown in the figure) sleeved on the seat 21 and the backrest.

When the stroller is used in the unfolded state, the seat 21 extends in the front-rear direction, and the backrest extends in the up-down direction. The backrest includes a first backrest 221 at the lower part and a second backrest 222 arranged above the first backrest 221. The lower part of the first backrest 221 and the rear part of the seat 21 are rotatably connected through a first shaft 231, and the upper part of the first backrest 221 is rotatably connected. The lower part of the second backrest 222 is rotatably connected through a second shaft 232, the first shaft 231 is located below the second shaft 232, and the first backrest 221 and the second backrest 222 are approximately in the same plane.

The seat assembly 2 also includes a locking mechanism for locking the relative positions of the first backrest 221 and the second backrest 222. By setting the locking mechanism, the backrests can be kept in a stable unfolded state, thereby providing a safe and reliable environment for the child to ride on the stroller. Support effectively.

In this embodiment, a specific structural form of the locking mechanism is given. Specifically, the locking mechanism includes a locking member 241 and a sliding member 242. The locking member 241 is fixedly arranged on the second backrest 222, and the sliding member 242 can slide in the up-down direction. The sliding member 242 can be matched with or disengaged from the locking member 241 . When the locking mechanism is in the locked state, the locking member 241 cooperates with the sliding member 242. At this time, the relative positions of the first backrest 221 and the second backrest 222 are fixed and cannot rotate relative to each other; when the locking mechanism is in the unlocked state, the locking member 241 The first backrest 221 and the second backrest 222 can rotate relative to each other after the cooperation with the sliding member 242 is disengaged, so as to be close to the cart frame 1 .

The locking mechanism further includes an elastic member 243 for driving the locking mechanism to reset from the unlocked state to the locked state. In this embodiment, the elastic member 243 adopts a spring, and its two ends are respectively disposed on the first backrest 221 and the sliding member 242 .

The locking mechanism is not limited to the structure in this embodiment, and other structures in the prior art may also be used.

When the stroller is folded and the rods forming the stroller frame 1 move relative to each other, the locking mechanism can be driven to unlock, and after the locking mechanism is unlocked, the relative movement of the rods can also drive the first backrest 22 and the second backrest 22 The relative rotation occurs between the seat 21 and the cart frame 1 . In this way, when the stroller is folded, it is not necessary to operate the locking mechanism to unlock the locking mechanism or to fold the seat assembly 2 separately. The unlocking of the locking mechanism and the folding of the seat assembly 2 can be synchronized with the folding of the stroller frame 1. The folding operation of the children's stroller is very convenient, and the unfolding operation of the children's stroller is also the same, which facilitates the use of the children's stroller.

Specifically, the stroller further includes a first driving member 3 for driving the locking mechanism to unlock when the stroller is folded, and driving the first backrest 221 , the second backrest 222 and the seat 21 to rotate relative to the stroller after the locking mechanism is unlocked. The second driving member 4 of the frame 1 is close to each other. The first driving member 3 is respectively connected with the locking mechanism and the cart frame 1 , and the second driving member 4 is respectively connected with the second backrest 222 and the cart frame 1 .

The first driving member 3 is a first flexible connecting member, and both ends of the first flexible connecting member are respectively fixed on the locking mechanism and the cart frame 1 . In this embodiment, one end of the first flexible connecting member is fixedly disposed on the sliding member 242 , and the first flexible connecting member extends downward from the connection with the sliding member 242 to the seat assembly 2 along the extending direction of the first backrest 221 . Below, the other end is connected to the cart frame 1 .

The second driving member 4 is a second flexible connecting member, and both ends of the second flexible connecting member are respectively fixed on the second backrest 222 and the cart frame 1 . In order not to affect the setting of the seat 21 and the cloth cover on the backrest and to take into account the comfort requirements of children when riding, the second flexible connector extends downward from the connection with the second backrest 222 to the seat 21 along the extension direction of the backrest. It extends forward for a certain distance along the extending direction of the seat 21 and is connected to the cart frame 1 .

The first driving member 3 and the second driving member 4 can be connected to different rod members constituting the cart frame 1, or can be connected to different positions of the same rod member.

In this embodiment, the locking mechanisms are respectively arranged on the left and right sides of the backrest, the stroller frame 1 includes side brackets respectively arranged on the left and right sides of the stroller, and the first driving member 3 and the second driving member 4 are respectively arranged On the left and right sides of the stroller, the first driving member 3 on each side is respectively connected with the locking mechanism and the side bracket on the corresponding side, and the second driving member 4 on each side is respectively connected with one side of the second backrest 222 The parts are connected with the side brackets on the corresponding side.

In this embodiment, a specific structure of the cart frame 1 is given. Specifically, the side brackets on each side include a front bracket 11, a rear bracket, an upper push rod assembly 13, a lower push rod 14, and a side link. 15. Front link 16 and rear link 17.

The front wheel assembly 50 is provided at the lower portion of the front bracket 11 . The rear bracket includes a rear upper rod 121 and a rear lower rod 122 slidably disposed on the rear upper rod 121 along the lengthwise extending direction of the rear upper rod 121 . The upper part of the side link 15 is rotatably connected with the lower part of the upper push rod assembly 13, and the upper part of the front bracket 11, the upper part of the rear upper rod 121 and the lower part of the side link 15 are connected in rotation with two parts. The three components are rotatably connected to any one of the aforementioned two components, or the above-mentioned three components are rotatably connected to the same axis. The upper part of the lower push rod 14 is rotatably connected with the lower part of the upper push rod assembly 13; the lower push rod 14 is rotatably connected with the rear upper rod 121; The other end of the rod 16 is rotatably connected to the lower part of the lower push rod 14 , and the other end of the front link 16 and the lower part of the lower push rod 14 are also slidably arranged relative to each other. One end of the rear link 17 is rotatably connected to the lower part of the rear lower rod 122 , and the other end of the rear link 17 is rotatably connected to the lower part of the lower push rod 14 . The above-mentioned first driving member 3 and second driving member 4 are both connected with the lower push rod 14 .

The cart frame 1 is not limited to the structure in this embodiment, and other existing structures may also be used.

When the stroller is in the unfolded state, the locking mechanism is in the locked state, that is, the locking member 241 cooperates with the sliding member 242, the seat 21 extends in the front-rear direction, the backrest extends in the up-down direction, and the first backrest 221 and the second backrest 222 are approximately located at In the same plane, the first shaft 231 is located below the second shaft 232 , and the first backrest 221 and the second backrest 222 are relatively fixed, thereby forming a support for the child, as shown in FIGS. 1 to 5 .

When the stroller is folded, after the upper push rod assembly 13 is folded, the upper push rod assembly 13 is rotated forward and downward as a whole, so that the side link 15 is turned backward and downward to be close to the rear bracket, and the lower push rod 14 is turned toward the rear bracket. The front link 16 and the rear link 17 are driven to rotate relative to the lower push rod 14, and the other end of the front link 16 slides relative to the lower push rod 14, so as to pass the front The connecting rod 16 pulls the front bracket 11 to rotate backward to be close to the rear bracket, and the rear lower rod 122 is pulled by the rear link 17 to slide relative to the rear upper rod 121 and gradually retract into the lumen of the rear upper rod 121 . During the rotation of the lower push rod 14, the first driving member 3 is stretched, which pulls the sliding member 242 to slide downward relative to the first backrest 221, so that the cooperation between the locking member 241 and the sliding member 242 is disengaged, and the locking mechanism i.e. unlock. During the rotation of the lower push rod 14 , the second driving member 4 is also stretched. After the locking mechanism is unlocked, the second driving member 4 pulls the second backrest 222 relative to the first backrest 221 to rotate around the second axis 232 to connect with the seat. 21 and the cart frame 1 are close to each other, and the folding process is shown in Figures 8 and 10 until the components that make up the cart frame 1 are close together, and the second backrest 222 is respectively connected to the first backrest 221, the seat The cart frames 1 are brought together and finally folded as shown in Figure 9 and Figure 11 . In the folded state, the seat 21 and the backrest both extend in the up-down direction, the first backrest 222 and the second backrest 221 are arranged in parallel, the seat 21 is accommodated above the first backrest 222, and the two are approximately in the same plane, and the first axis 231 is located above the second shaft 232. The seat assembly 2 is integrally accommodated in the stroller frame 1 and is close to the stroller frame 1. The whole child stroller is flat, compact in structure and small in size, and can stand on the ground independently. Easy to carry and store.

The above-mentioned embodiments are only intended to illustrate the technical concept and characteristics of the present invention, and the purpose thereof is to enable those who are familiar with the art to understand the content of the present invention and implement them accordingly, and cannot limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. A children's shallow, includes the shallow frame and sets up seat subassembly on the shallow frame, the seat subassembly include the seat and with the back of seat looks swivelling joint, its characterized in that: the backrest comprises a first backrest positioned at the lower part and a second backrest arranged above the first backrest, the lower part of the first backrest is rotationally connected with the rear part of the seat, the upper part of the first backrest is rotationally connected with the lower part of the second backrest, the seat assembly further comprises a locking mechanism for locking the relative positions of the first and second backrests, the child stroller also comprises a first driving piece for driving the locking mechanism to be unlocked when the child stroller is folded, and a second driving piece for driving the first backrest, the second backrest and the seat to relatively rotate and approach the stroller frame after the locking mechanism is unlocked, the first driving piece is respectively connected with the locking mechanism and the cart frame, and the second driving piece is respectively connected with the second backrest and the cart frame.

2. The stroller of claim 1, wherein: the first driving piece is a first flexible connecting piece, two end parts of the first flexible connecting piece are respectively and fixedly arranged on the locking mechanism and the trolley frame, the second driving piece is a second flexible connecting piece, and two end parts of the second flexible connecting piece are respectively and fixedly arranged on the second backrest and the trolley frame.

3. The stroller of claim 2, wherein: when the stroller is in a unfolded state, the first backrest and the second backrest are located in the same plane, the backrest integrally extends along the up-down direction, and the first flexible connecting piece extends downwards along the extending direction of the backrest from the joint of the first flexible connecting piece and the locking mechanism and is connected with the stroller frame.

4. The stroller of claim 2, wherein: when the stroller is in a unfolded state, the first backrest and the second backrest are located in the same plane, the backrest extends along the up-down direction integrally, the seat extends along the front-back direction, and the second flexible connecting piece extends downwards from the joint of the second backrest to the seat position along the extending direction of the backrest and extends forwards along the extending direction of the seat to be connected with the stroller frame.

5. The stroller of claim 1, wherein: locking mechanical system sets up respectively the left and right sides of back, the shallow frame is including setting up respectively the collateral branch frame of the left and right sides of children's shallow, first driving piece with the second driving piece is equallyd divide and is set up respectively the left and right sides of children's shallow, every side first driving piece respectively with correspond one side locking mechanical system with the collateral branch frame is connected, every side the second driving piece respectively with a lateral part of second back with correspond one side the collateral branch frame is connected.

6. The stroller of claim 1, wherein: the cart frame comprises a plurality of rod pieces, and the first driving piece and the second driving piece are connected to different rod pieces, or the first driving piece and the second driving piece are connected to the same different positions of the rod pieces.

7. The stroller of claim 1, wherein: the locking mechanism comprises a locking piece fixedly arranged on the second backrest and a sliding piece which is slidably arranged on the first backrest and can be matched with or separated from the locking piece, when the locking mechanism is in a locking state, the locking piece is matched with the sliding piece, and when the locking mechanism is in an unlocking state, the locking piece is separated from the sliding piece.

8. The stroller of claim 1, wherein: the lower part of first back with the rear portion of seat is connected through the first axle rotation, the upper portion of first back with the lower part of second back is passed through the second axle and is connected in the rotation mutually, works as the children's shallow is in when unfolding the state, first back with the second back is located the coplanar, the back is whole to extend along upper and lower direction, the seat extends along the fore-and-aft direction, the primary shaft is located the below of secondary shaft is worked as when the children's shallow is in fold condition, the seat with the back all extends along upper and lower direction, first back with second back parallel arrangement, the seat is located the top of first back, the primary shaft is located the top of secondary shaft.

9. The stroller of claim 1, wherein: the cart frame comprises a front support, a rear support, an upper push rod assembly, a lower push rod, a side connecting rod, a front connecting rod and a rear connecting rod, wherein the front support is used for mounting a front wheel assembly, the rear support comprises a rear upper rod and a rear lower rod which can be arranged on the rear upper rod in a sliding mode along the length extension direction of the rear upper rod, the rear wheel assembly is arranged below the rear lower rod, the upper portion of the lower push rod is rotatably connected with the lower portion of the upper push rod assembly, the lower push rod is rotatably connected with the rear upper rod, two of the three components, namely the upper portion of the front support, the upper portion of the rear support and the lower portion of the side connecting rod, are rotatably connected, the third component is rotatably connected with any one of the two components, or the three components are rotatably connected in the same shaft, the upper portion of the side connecting rod is rotatably connected with the lower portion of the upper push rod assembly, and one end portion of the front connecting rod is rotatably connected with the, the other end of the front connecting rod is rotatably connected with the lower part of the lower push rod, the other end of the front connecting rod and the lower part of the lower push rod can be arranged in a relatively sliding mode, one end of the rear connecting rod is rotatably connected with the lower part of the lower push rod, and the other end of the rear connecting rod is rotatably connected with the rear lower rod.

10. The stroller of claim 9, wherein: the first driving piece and the second driving piece are respectively connected with the lower push rod.

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