CN214524005U - Children's barrow - Google Patents

Abstract

The utility model discloses a children's shallow, including the shallow frame, the shallow frame is including setting up respectively the collateral branch frame of the left and right sides of shallow frame is in with connecting in the left and right sides a plurality of first stull subassembly between the collateral branch frame, thereby first stull subassembly can follow the flexible left and right sides that makes of left and right sides the collateral branch frame is drawn close or is kept away from mutually, the shallow frame is still including being used for ordering about first stull subassembly shrink makes the left and right sides the drive assembly that the collateral branch frame was drawn close mutually, drive assembly sets up one of them on the first stull subassembly. This children's shallow when transversely folding, as long as operate drive assembly, can order about first stull subassembly through drive assembly and shrink to the collateral branch frame that makes the left and right sides draws close together, this kind of transverse folding mode labour saving and time saving does not receive the influence of the width of shallow frame, thereby convenient operation makes things convenient for the use of children's shallow.

Description

Children's barrow

Technical Field

The utility model relates to a children's articles for use technical field, concretely relates to children's shallow.

Background

The child stroller provides great convenience for adults to carry small children for outdoor activities, so that the child stroller gradually becomes a necessity for adults to carry children for outdoor activities. In order to facilitate the carrying and storage of the stroller, the stroller frame of the stroller can be folded. In order to make the folding structure of the stroller smaller in size and convenient to carry and store, the stroller needs to be folded transversely. In the prior art, when the stroller is transversely folded, the lateral supports on the two sides are pushed by two hands simultaneously to be close to each other, or the lateral supports on the two sides are turned by the two hands respectively to be close to the lateral supports on the two sides, the transverse folding mode is labor-consuming, and when the width of the stroller frame in the left-right direction is large, the stroller frame still has the problem of inconvenience in operation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a modified children's shallow to not enough among the prior art.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides a children's shallow, has expansion and fold condition, children's shallow includes the shallow frame, sets up the anterior front wheel subassembly in the end of shallow frame is in with the setting the rear wheel subassembly at the end rear portion of shallow frame, the shallow frame is including setting up respectively the collateral branch frame of the left and right sides of shallow frame with connect in the left and right sides a plurality of first stull subassemblies between the collateral branch frame, thereby first stull subassembly can follow left and right sides flexible make the left and right sides the collateral branch frame is drawn close or is kept away from mutually, the shallow frame is still including being used for ordering about first stull subassembly shrink makes the left and right sides the drive assembly that the collateral branch frame drawn close mutually, drive assembly sets up one of them on the first stull subassembly.

Preferably, the first cross brace assembly comprises a first cross brace and a second cross brace which both extend along the left-right direction, one end of the first cross brace is fixedly arranged on the side support on one side, one end of the second cross brace is fixedly arranged on the side support on the other side, and the second cross brace is slidably arranged on the first cross brace along the length extension direction of the first cross brace.

Further, the driving assembly comprises an operating rod with one end part rotatably connected with the first transverse supporting rod through a first shaft, a connecting rod with one end part rotatably connected with the second transverse supporting rod through a second shaft, and the other end part of the connecting rod is rotatably connected with the operating rod through a third shaft.

Furthermore, when the stroller is in the unfolded state, the axle center of the first shaft, the axle center of the second shaft and the axle center of the third shaft are in the same straight line extending direction, and the axle center of the third shaft is located between the axle center of the first shaft and the axle center of the second shaft.

Further, when the child stroller is in a folded state, the axle center of the first shaft, the axle center of the second shaft and the axle center of the third shaft are in the same straight line extending direction, and the axle center of the first shaft is located between the axle center of the second shaft and the axle center of the third shaft.

Further, when the stroller is unfolded from the folded position, the operating lever is rotated in a first direction relative to the first cross brace until passing a first dead center position, and when the stroller is folded from the unfolded position, the operating lever is rotated in a second direction relative to the first cross brace until passing a second dead center position, the first direction and the second direction being opposite.

Further, the stroller frame further comprises an elastic member for driving the second transverse supporting rod to slide in a direction away from the first transverse supporting rod when the stroller is unfolded, and the elastic member is arranged between the second transverse supporting rod and the first transverse supporting rod.

Preferably, the side brackets on each side each include a front bracket for mounting the front wheel assembly, a rear bracket for mounting the rear wheel assembly, a push rod assembly, a seat rod connecting rod, a front connecting rod and a rear connecting rod, two of the three parts of the upper part of the front bracket, the upper part of the rear bracket and the lower part of the push rod assembly are rotatably connected, the third part is rotatably connected with any one of the two parts, or the three parts are rotatably connected by the same shaft, the front part of the front connecting rod is rotatably connected with the front bracket, the rear part of the rear connecting rod is rotatably connected with the rear bracket, the rear part of the front connecting rod is rotatably connected with the front part of the rear connecting rod, the rear part of the seat rod is rotatably connected with the lower part of the push rod assembly, the upper part of the seat rod connecting rod is rotatably connected with the seat rod, and the lower part of the seat rod connecting rod is rotatably and slidably disposed on the front connecting rod, the seat post connecting rod is rotatably connected with the front bracket.

Furthermore, the plurality of first cross brace assemblies are respectively a first front cross brace assembly connected to the front supports on the left and right sides, a first rear cross brace assembly connected to the rear supports on the left and right sides, and a first upper cross brace assembly connected to the seat post connecting rods on the left and right sides, and the driving assembly is arranged on the first upper cross brace assembly.

The stroller frame further comprises a second cross brace assembly arranged between the upper portions of the left and right push rod assemblies, the second cross brace assembly comprises a third cross brace positioned in the middle and fourth cross braces respectively arranged on the left and right sides of the third cross brace, one end portions of the fourth cross braces on the left and right sides are rotatably connected with one corresponding end portion of the third cross brace, and the other end portions of the fourth cross braces on the left and right sides can be rotatably and slidably arranged on the corresponding push rod assembly on one side.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: the utility model discloses a children's shallow when transversely folding, as long as operate drive assembly, can order about first stull subassembly shrink through drive assembly to the collateral branch frame that makes the left and right sides draws close together, and this kind of transverse folding mode is labour saving and time saving, does not receive the influence of the width of shallow frame, thereby makes things convenient for the operation, makes things convenient for children's shallow use.

Drawings

Fig. 1 is a perspective view of the stroller of the present invention in an unfolded state;

fig. 2 is a perspective view of the stroller of the present invention during the folding process (the side frame is folded);

fig. 3 is a top view of the stroller of the present invention during the folding process (the side frame is folded);

fig. 4 is a top view of the stroller of the present invention during the folding process (the side frame is folded, the first cross-brace assembly is retracted);

fig. 5 is a top view of the stroller of the present invention in a folded state;

fig. 6 is a side view of the stroller of the present invention in a folded state.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 6, the stroller of the present invention comprises a stroller frame having an unfolded and folded state, a front wheel assembly 70 disposed at the front part of the bottom of the stroller frame, and a rear wheel assembly 80 disposed at the rear part of the bottom of the stroller frame.

The stroller frame comprises side brackets respectively positioned at the left side and the right side of the stroller and a cross brace assembly connected between the side brackets at the left side and the right side. The side brackets on each side can be folded along the height direction and the front-back direction. The cross brace component can be folded along the left and right directions, so that the side brackets at the two sides are closed, and the baby stroller can be folded along the left and right directions at the same time.

In this embodiment, a structure of the side stand is given: the side brackets on each side include a front bracket 11, a rear bracket 12, a push rod assembly 13, a seat rod 14, a seat rod link 15, a front link 16, and a rear link 17. The front bracket 11 is used to mount the front wheel assembly 70. The rear bracket 12 is used to mount the rear wheel assembly 80. Two of the three components of the upper part of the front bracket 11, the upper part of the rear bracket 12 and the lower part of the push rod assembly 13 are rotatably connected, and the third component is rotatably connected with any one of the two components, or the three components are rotatably connected with the same shaft. The rear part of the seat rod 14 is rotatably connected with the lower part of the push rod assembly 13. The front part of the front connecting rod 16 is rotatably connected with the front bracket 11, the rear part of the rear connecting rod 17 is rotatably connected with the rear bracket 12, and the rear part of the front connecting rod 16 is rotatably connected with the front part of the rear connecting rod 17. One end of the seat link 15 is rotatably connected to the seat bar 14, the other end of the seat link 15 is rotatably and slidably provided on the front link 16, and the seat link 15 is rotatably connected to the front bracket 11.

The side bracket on each side further comprises a sliding part 18 which is arranged on the front connecting rod 16 in a sliding way along the length extending direction of the front connecting rod 16, and the other end part of the seat rod connecting rod 15 is rotatably connected with the sliding part 18.

In this embodiment, the upper portion of the rear bracket 12 and the lower portion of the push rod assembly 13 are rotatably connected to the upper portion of the front bracket 11, respectively. When the stroller is in the unfolded state, the rotational connection of the rear bracket 12 and the front bracket 11 is located below the rotational connection of the push rod assembly 13 and the front bracket 11. The rotary connection part of the seat post connecting rod 15 and the seat post 14, the rotary connection part of the seat post connecting rod 15 and the front bracket 11 and the rotary connection part of the seat post connecting rod 15 and the sliding part 18 are arranged from top to bottom in sequence.

Thus, in the side brackets on each side, a four-link mechanism is formed among the front bracket 11, the rear bracket 12, the front link 16, and the rear link 17, and a four-link mechanism is also formed among the seat lever 14, the seat lever link 15, the front bracket 11, and the push rod assembly 13.

The push rod assembly 13 includes a lower push rod 131 and an upper push rod 132, the lower push rod 131 having a lumen extending along a length direction thereof, the upper push rod 132 being slidably disposed along the length extending direction of the lumen of the lower push rod 131. The upper part of the front bracket 11 is rotatably connected with the lower part of the lower push rod 131, and the rear part of the seat post 14 is rotatably connected with the lower part of the lower push rod 131.

Of course, the side stand is not limited to the specific structure in the above embodiment, and other structures may be adopted.

The stull subassembly includes a plurality of first stull subassemblies, and every first stull subassembly homoenergetic is followed left right direction and is stretched out and drawn back to the collateral branch frame that makes the left and right sides is close to mutually and keeps away from.

Specifically, the first cross brace assembly includes a first cross brace 211 and a second cross brace 212, the first cross brace 211 and the second cross brace 212 both extend in the left-right direction, one end of the first cross brace 211 is fixedly disposed on the side bracket on one side, one end of the second cross brace 212 is fixedly disposed on the side bracket on the other side, and the second cross brace 212 is slidably disposed on the first cross brace 211 in the length extending direction of the first cross brace 211. When the second transverse supporting rod 212 slides towards the direction close to the first transverse supporting rod 211 relative to the first transverse supporting rod 211, the first transverse supporting component contracts to drive the side brackets on the left side and the right side to be close together; when the second cross brace 212 slides relative to the first cross brace 211 in a direction away from the first cross brace 211, the first cross brace assembly extends to drive the side brackets on the left and right sides away from each other. In this embodiment, the first cross strut 211 has a lumen extending along the length thereof, and the second cross strut 212 is partially located in the lumen and slidably disposed along the length of the lumen.

The cart frame further comprises a driving assembly used for driving the first cross brace assembly to contract, and the driving assembly is arranged on one of the first cross brace assemblies. Specifically, the driving assembly includes an operating rod 31 and a link 32, one end of the operating rod 31 is rotatably connected to a first transverse strut 211 via a first shaft 41, one end of the link 32 is rotatably connected to a second transverse strut 212 via a second shaft 42, and the other end of the link 32 is rotatably connected to the operating rod 31 via a third shaft 43.

Thus, a crank-slider mechanism is formed between the first and second crossbars 211 and 212, the link 32 and the operating lever 31, and when the operating lever 31 is operated to rotate relative to the first crossbar 211, the first crossbar 211 and the second crossbar 212 are driven to slide relative to each other. Specifically, when the operating lever 31 rotates in a first direction relative to the first crossbar 211, the second crossbar 212 is driven to slide in a direction away from the first crossbar 211 relative to the first crossbar 211, and when the operating lever 31 rotates in a second direction relative to the first crossbar 211, the second crossbar 212 is driven to slide in a direction close to the first crossbar 211 relative to the first crossbar 211, where the first direction and the second direction are opposite.

When the stroller is unfolded from the folded state, the operating lever 31 rotates in the first direction with respect to the first cross bar 211 until the first dead point position is passed. When the stroller is folded from the unfolded state, the operation lever 31 is rotated in the second direction with respect to the first cross brace 211 until passing the second dead point position, so that the stroller can be maintained in the stably unfolded state and the folded state.

In this embodiment, when the stroller is in the unfolded state, the axial center of the first shaft 41, the axial center of the second shaft 42, and the axial center of the third shaft 43 are in the same straight line extending direction, and the axial center of the second shaft 42 is located between the axial center of the first shaft 41 and the axial center of the third shaft 43. When the stroller is in the folded state, the axial center of the first shaft 41, the axial center of the second shaft 42, and the axial center of the third shaft 43 are all in the same linear extending direction, and the axial center of the first shaft 41 is located between the axial center of the second shaft 42 and the axial center of the third shaft 43.

In this embodiment, the stroller frame further comprises an elastic member 5 for driving the second cross brace 212 to slide away from the first cross brace 211 when the stroller is unfolded, and two ends of the elastic member 5 are respectively disposed on the first cross brace 211 and the second cross brace 212.

In this embodiment, the plurality of first cross support assemblies are respectively a first front cross support assembly 21a connected between the front brackets 11 on the left and right sides, a first rear cross support assembly 21b connected between the rear brackets 12 on the left and right sides, and a first upper cross support assembly 21c connected between the seat bar links 14 on the left and right sides, and the driving assembly is provided on the first upper cross support assembly 21 c.

In order to keep the stroller in a stable unfolded state and improve the safety of the stroller in use, the stroller further comprises a locking mechanism for locking the first cross-brace assemblies in the unfolded state, wherein the locking mechanism is arranged on at least one of the first cross-brace assemblies.

The stull subassembly is still including connecting the second stull subassembly 22 between the upper portion of the push up rod 132 of the left and right sides, the second stull subassembly can be followed left right direction and rotated, because the distance between second stull subassembly 22 and the first last stull subassembly 21c is great relatively, when the operation drive assembly made the collateral branch frame of the left and right sides draw close together, rotate along left right direction through second stull subassembly 22, thereby can make the push rod subassembly 13 of the left and right sides draw close together mutually, the collateral branch frame of the left and right sides can draw close together more closely like this.

Specifically, the second cross brace assembly 22 includes a third cross brace 221 located in the middle and fourth cross braces 222 respectively disposed at the left and right sides of the third cross brace 221, one end of each of the fourth cross braces 222 at the left and right sides is rotatably connected to a corresponding end of the third cross brace 221, and the other end of each of the fourth cross braces 222 at the left and right sides is rotatably and slidably disposed on the upper push rod 132 at the corresponding side.

When the stroller is in the unfolded state, the upper push rod 132 is located above the lower push rod 131, the two push rods extend along the same straight direction, the front connecting rod 16 and the rear connecting rod 17 both extend along the front-rear direction, the second transverse strut 212 mostly extends out of the tube cavity of the first transverse strut 211 under the elastic force of the elastic member 5, the axle center of the first shaft 41, the axle center of the second shaft 42 and the axle center of the third shaft 43 are in the same straight extending direction, and the axle center of the front wheel assembly 70 and the axle center of the rear wheel assembly 80 both extend along the left-right direction, as shown in fig. 1.

When the stroller is folded, the side bracket is folded first, and when the stroller is folded, the upper push rod 132 slides downwards and retracts into the tube cavity of the lower push rod 131; the push rod assembly 13 is turned forwards to be close to the front bracket 11, and the seat rod 14 and the seat rod connecting rod 15 are driven to rotate to be close to the front bracket 11; when the seat bar connecting rod 15 rotates, the sliding part 18 slides backwards along the length extending direction of the front connecting rod 16, the rear bracket 12 is driven by the front connecting rod 16 and the rear connecting rod 17 to gradually turn forwards to be close to the front bracket 11 until all the bar pieces forming the side bracket are close to each other, and the folding of the side bracket is finished, as shown in fig. 2 and fig. 3. After the side brackets are folded, the push rod assembly 13, the front bracket 11 and the rear bracket 12 are sequentially folded in the side bracket on each side, the rear wheel assembly 80 is close to the front wheel assembly 70, and the wheel axle of the front wheel assembly 70 and the wheel axle of the rear wheel assembly 80 still extend along the left-right direction. Then, the stroller is folded in the transverse direction, when the stroller is folded, the operating lever 31 is operated to rotate in the second direction relative to the first cross brace 211, the driving link 32 rotates relative to the second cross brace 212, the second cross brace 212 is driven to slide in the direction of retracting into the lumen of the first cross brace 211, so that the seat bar links 15 on the left and right sides are closed, the side frames on the left and right sides are closed, at this time, the fourth cross brace 222 rotates relative to the third cross brace 221, so that the push rod assemblies 13 on the left and right sides are closed, as shown in fig. 5 and 6, the operating lever 31 rotates about 180 degrees relative to the first cross brace 211, and when the operating lever passes through the second dead point position, the three axes of the first shaft 41, the second shaft 42 and the third axis of the third shaft 43 are in the same linear extending direction, and the wheel axle of the front wheel assembly 70 and the wheel axle of the rear wheel assembly 80 still extend in the left and right directions, the folded baby stroller has compact structure, small volume and convenient carrying and storage.

During the lateral folding of the stroller, the elastic member 5 is compressed, and when the stroller is unfolded and the operating rod 31 rotates in the first direction relative to the first cross strut 211 beyond the second dead point position, the elastic force of the elastic member 5 drives the second cross strut 212 to slide in the direction extending out of the lumen of the first cross strut 211, so that the operating rod 31 continues to rotate in the first direction relative to the first cross strut 211 until the operating rod passes the first dead point position, and the cross strut assembly is completely unfolded; then the push rod assembly 13 is lifted upwards, so that the side brackets are unfolded, and the stroller is in an unfolded state.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (10)

1. The utility model provides a children's shallow, has expansion and fold condition, children's shallow includes the shallow frame, sets up the anterior front wheel subassembly in the end of shallow frame is in with the setting the rear wheel subassembly at the end rear portion of shallow frame, the shallow frame is including setting up respectively the collateral branch frame of the left and right sides of shallow frame and connection are in the left and right sides a plurality of first stull subassemblies between the collateral branch frame, its characterized in that: thereby first stull subassembly can follow left and right sides flexible make the left and right sides the collateral branch frame draws close or keeps away from mutually, the shallow frame is still including being used for ordering about first stull subassembly shrink makes the left and right sides the drive assembly that the collateral branch frame drawn close mutually, drive assembly sets up one of them on the first stull subassembly.

2. The stroller of claim 1, wherein: the first transverse supporting rod assembly comprises a first transverse supporting rod and a second transverse supporting rod which extend along the left-right direction, one end portion of the first transverse supporting rod is fixedly arranged on the side support on one side, one end portion of the second transverse supporting rod is fixedly arranged on the side support on the other side, and the second transverse supporting rod can be arranged on the first transverse supporting rod in a sliding mode along the length extending direction of the first transverse supporting rod.

3. The stroller of claim 2, wherein: the driving assembly comprises an operating rod with one end part rotatably connected with the first transverse supporting rod through a first shaft, a connecting rod with one end part rotatably connected with the second transverse supporting rod through a second shaft, and the other end part of the connecting rod is rotatably connected with the operating rod through a third shaft.

4. The stroller of claim 3, wherein: when the children's barrow is in an unfolding state, the axle center of the first shaft, the axle center of the second shaft and the axle center of the third shaft are in the same straight line extending direction, and the axle center of the third shaft is located between the axle center of the first shaft and the axle center of the second shaft.

5. The stroller of claim 3, wherein: when the children's shallow is in fold condition, the axle center of the primary shaft the axle center of the secondary shaft with the axle center of the third shaft is in same straight line extending direction, the axle center of the primary shaft is located the axle center of the secondary shaft with between the axle center of the third shaft.

6. The stroller of claim 3, wherein: when the stroller is unfolded from the folded state, the operating lever rotates relative to the first cross brace until the first dead point position is crossed, and when the stroller is folded from the unfolded state, the operating lever reversely rotates relative to the first cross brace until the second dead point position is crossed.

7. The stroller of claim 2, wherein: the stroller frame further comprises an elastic element for driving the second transverse supporting rod to slide in a direction away from the first transverse supporting rod when the stroller is unfolded, and the elastic element is arranged between the second transverse supporting rod and the first transverse supporting rod.

8. The stroller of claim 1, wherein: the side brackets on each side comprise a front bracket for mounting the front wheel assembly, a rear bracket for mounting the rear wheel assembly, a push rod assembly, a seat rod connecting rod, a front connecting rod and a rear connecting rod, wherein two of the three components of the upper part of the front bracket, the upper part of the rear bracket and the lower part of the push rod assembly are rotationally connected, the third component is rotationally connected with any one of the two components, or the three components are rotationally connected with the same shaft, the front part of the front connecting rod is rotationally connected with the front bracket, the rear part of the rear connecting rod is rotationally connected with the rear bracket, the rear part of the front connecting rod is rotationally connected with the front part of the rear connecting rod, the rear part of the seat rod is rotationally connected with the lower part of the push rod assembly, the upper part of the seat rod connecting rod is rotationally connected with the seat rod, and the lower part of the seat rod connecting rod can be rotationally and slidably arranged on the front connecting rod, the seat post connecting rod is rotatably connected with the front bracket.

9. The stroller of claim 8, wherein: the plurality of first cross brace assemblies are respectively a first front cross brace assembly connected to the front supports on the left side and the right side, a first rear cross brace assembly connected to the rear supports on the left side and the right side, and a first upper cross brace assembly connected to the seat post connecting rods on the left side and the right side, and the driving assembly is arranged on the first upper cross brace assembly.

10. The stroller of claim 8, wherein: the cart frame further comprises second transverse supporting rods arranged between the upper portions of the left and right push rod assemblies, each second transverse supporting rod assembly comprises a third transverse supporting rod located in the middle and fourth transverse supporting rods arranged on the left and right sides of the corresponding third transverse supporting rod respectively, one end portions of the fourth transverse supporting rods on the left and right sides are rotatably connected with one corresponding end portion of the corresponding third transverse supporting rod, and the other end portions of the fourth transverse supporting rods on the left and right sides can be rotatably and slidably arranged on the corresponding push rod assembly on one side.

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