CN219728296U - Child cart - Google Patents

Abstract

The utility model discloses a child stroller, which comprises a stroller frame, wherein the stroller frame comprises a front support, a rear support, a push rod, a first connecting rod and a second connecting rod, one of the upper part of the front support and the upper part of the rear support is a telescopic rod assembly, the telescopic rod assembly comprises a lower support rod and an upper support rod which is arranged on the lower support rod in a sliding manner, the other of the upper part of the front support and the upper part of the rear support is rotationally connected with the lower part of the push rod through a first shaft, the other of the upper part of the front support and the upper part of the rear support is rotationally connected with the upper part of the upper support rod through a second shaft, one end part of the first connecting rod is rotationally connected with the lower part of the push rod through a third shaft, the other end part of the second connecting rod is rotationally connected with the lower part of the push rod through a fifth shaft, and the other end part of the second connecting rod is rotationally connected with the lower support rod through a sixth shaft. The child stroller has the advantages of simple structure, compact structure after folding and small volume.

Description

Child cart

Technical Field

The utility model relates to the technical field of children products, in particular to a child trolley.

Background

The children's shallow can be used when adult carries children to go out, and children's shallow can be used to bear children, also can bear the article of carrying to make the go out convenient, light. In the prior art, the frame structure of part of the children's barrow is complex, more members forming the frame are arranged, and even if the children's barrow is folded, the structural volume is still larger, so that the occupied space is large in size, and the children's barrow is inconvenient to carry and store.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a child stroller which is simple in structure and small in structural size after being folded.

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

the utility model provides a children's shallow, includes has the shallow frame of expansion state and folding state, sets up the front wheel subassembly of the bottom front portion of shallow frame and sets up the rear wheel subassembly of the bottom rear portion of shallow frame, the shallow frame includes fore-stock, rear bracket, push rod, first connecting rod and second connecting rod, one of the upper portion of fore-stock and the upper portion of rear bracket is the telescopic link subassembly, the telescopic link subassembly includes down branch and can follow down branch's length extending direction slidingly set up down branch on the branch, the upper portion of fore-stock and the upper portion of rear bracket another of both with the lower part of push rod is connected through first axle rotation, the upper portion of fore-stock and the upper portion of rear bracket another of both with the upper portion of upper branch is connected through the second axle rotation, the one end of first connecting rod with the lower part of push rod is connected through the third axle rotation, the other end of first connecting rod with the upper portion of upper branch is in a sliding manner, the upper portion of upper rod is connected through the second axle rotation with the second connecting rod through the second end.

Preferably, a first slide groove is provided on the other of the upper portion of the front bracket and the upper portion of the rear bracket, and the third shaft is slidably provided in the first slide groove along an extending direction of the first slide groove.

Further, the first sliding groove is an arc groove taking the axis of the first shaft as the center of a circle.

Preferably, a second slide groove is further provided on the other of the upper portion of the front bracket and the upper portion of the rear bracket, and the fourth shaft is slidably provided in the second slide groove along the extending direction of the second slide groove.

Further, the second sliding groove is an arc groove taking the axis of the second shaft as the center of a circle.

Preferably, a first joint is arranged at the lower part of the push rod, a second joint is arranged on the other of the upper part of the front bracket and the upper part of the rear bracket, the first joint and the second joint are rotationally connected through the first shaft, and the first connecting rod is arranged in the first joint, or is arranged in the second joint, or is arranged between the first joint and the second joint.

Preferably, the telescopic rod assembly and the push rod are respectively arranged in the middle of the left and right directions of the cart frame, the other one of the front bracket and the rear bracket comprises side struts respectively arranged on the left side and the right side and a cross brace connected between the side struts on the left side and the right side, and the first connecting rod and the second connecting rod are respectively arranged on the left side and the right side of the telescopic rod assembly.

Preferably, the first connecting rod is an arc-shaped rod.

Preferably, the front support is a telescopic rod assembly, the front wheel assembly is arranged at the lower part of the lower support rod, and the rear wheel assembly is arranged at the lower part of the rear support.

Preferably, the child stroller further comprises a seat assembly, and a lower portion of the seat assembly is rotatably connected with a lower portion of the push rod, an upper portion of the front bracket, or an upper portion of the rear bracket.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages: the trolley frame has fewer rods, so that the trolley frame has a simple structure and is convenient for processing and manufacturing the trolley. And after the child stroller is folded, the child stroller is compact in structure, small in size and convenient to carry and store.

Drawings

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

fig. 2 is a schematic front view of the stroller of embodiment 1 in an unfolded state;

FIG. 3 is a schematic top view of the stroller of example 1 in an unfolded state;

FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is an enlarged schematic view of a portion of FIG. 4 at A;

FIG. 6 is a schematic front view of the child stroller of example 1 during folding (seat assembly folded against front support);

FIG. 7 is a schematic top view of the stroller of example 1 during folding (seat assembly folded against front support);

FIG. 8 is a schematic cross-sectional view taken along line A-A of FIG. 7;

FIG. 9 is an enlarged schematic view of a portion of FIG. 8 at A;

FIG. 10 is a schematic front view of the stroller of example 1 (the rods making up the stroller frame are rotated at a certain angle) during folding;

FIG. 11 is a schematic top view of the stroller of example 1 (the rods making up the stroller frame are rotated by a certain angle) during folding;

FIG. 12 is a schematic cross-sectional view taken along line A-A of FIG. 11;

FIG. 13 is an enlarged schematic view of a portion of FIG. 12 at A;

FIG. 14 is a schematic side view of the stroller of example 1 in a folded condition;

fig. 15 is a perspective view of the rear bracket of the stroller of embodiment 1;

FIG. 16 is a schematic side view of the rear bracket of the stroller of example 1;

fig. 17 is a perspective view of a push rod of the stroller of the present embodiment 1;

fig. 18 is a perspective view of the upper strut of the stroller of embodiment 1.

Wherein: 11. a front bracket; 111. a lower support rod; 112. an upper support rod; 113. a cross beam; 12. a rear bracket; 121. a side strut; 122. a cross brace; 123. a second joint; 123a, a first chute; 123b, a second chute; 13. a push rod; 131. a push rod is downwards pushed; 131a, a first joint; 132. an upper push rod; 14. a first link; 15. a second link; 2. a front wheel assembly; 3. a rear wheel assembly; 41. a first shaft; 42. a second shaft; 43. a third shaft; 44. a fourth shaft; 45. a fifth shaft; 46. a sixth shaft; 5. a seat assembly; 51. a seat; 52. a backrest.

Detailed Description

The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.

In the following description, the directions of "front", "rear", "left", "right", "up", "down", etc. are referred to as "front" in the left direction in the drawing, "rear" in the right direction, the upper direction is "up", the lower direction is "down", and the directions perpendicular to the paper surface in the drawing are "left" and "right", respectively, according to fig. 4. The above directional definitions are merely provided to facilitate the description of the utility model and to simplify the description and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operate in a particular orientation and are not to be construed as limiting the utility model.

Example 1

As shown in fig. 1 to 14, the child stroller of the present utility model includes a stroller frame having an unfolded state and a folded state, a front wheel assembly 2 provided at a bottom front portion of the stroller frame, and a rear wheel assembly 3 provided at a bottom rear portion of the stroller frame.

The trolley frame comprises a front bracket 11, a rear bracket 12, a push rod 13, a first connecting rod 14 and a second connecting rod 15.

The front wheel assembly 2 is disposed at the bottom of the front bracket 11, and the rear wheel assembly 3 is disposed at the bottom of the rear bracket 12.

In this embodiment, the front bracket 11 is a telescopic rod assembly, which specifically includes a lower strut 111 and an upper strut 112, and the upper strut 112 is slidably disposed on the lower strut 111 along a length extending direction of the lower strut 111. When the stroller is in the deployed state, the lower strut 111 is positioned below the upper strut 112. In this embodiment, the lower strut 111 has a lumen extending along its length, and the upper strut 112 is slidably disposed in the lumen along its length.

The lower part of the push rod 13 is rotatably connected with the upper part of the rear bracket 12 through a first shaft 41, and the upper part of the rear bracket 12 is rotatably connected with the upper part of the upper strut 112 through a second shaft 42. One end of the first link 14 is rotatably connected to the lower portion of the push rod 13 via a third shaft 43, and the other end of the first link 14 is rotatably connected to the upper portion of the upper strut 112 via a fourth shaft 44. One end of the second link 15 is rotatably connected to the lower portion of the push rod 13 via a fifth shaft 45, and the other end of the second link 15 is rotatably connected to the upper portion of the lower strut 111 via a sixth shaft 46, as shown in fig. 1, 4, 5, 8, 9, 12, 13, and 15 to 18.

Thus, a four bar linkage is formed between the rear bracket 12, the push rod 13, the first link 14 and the upper strut 112.

In this embodiment, the front bracket 11 and the push rod 13 are respectively provided in the middle in the left-right direction of the cart frame, and the first link 14 and the second link 15 are respectively provided on the left and right sides of the front bracket 11. The lower portion of the lower strut 111 is fixedly provided with a cross member 113 extending in the left-right direction, and the front wheel assemblies 2 are provided at both left and right end portions of the cross member 113, respectively. The rear bracket 12 includes side struts 121 respectively disposed at left and right sides and a cross strut 122 connected between lower portions of the side struts 121 at the left and right sides, and the rear wheel assembly 3 is respectively disposed at lower portions of the side struts 121 at each side.

In this embodiment, as shown in fig. 17, the push rod 13 includes a lower push rod 131 and an upper push rod 132, and the upper push rod 132 is slidably provided on the lower push rod 131 along the length extending direction of the lower push rod 131. Specifically, the lower push rod 131 has a lumen extending along a length direction thereof, and the upper push rod 132 is slidably disposed in the lumen along the length extending direction of the lumen. Of course, the lower portion of the upper push rod 132 may be rotatably connected to the upper portion of the lower push rod 131.

The lower part of the push down rod 131 is provided with a first joint 131a, and the upper part of the side support rod 121 on each side is provided with a second joint 123, and the first joint 131a is respectively and rotatably connected with the second joints 123 on both sides through the first shaft 41. One end of the first link 14 is rotatably connected to the first joint 131a via the third shaft 43, and one end of the second link 15 is rotatably connected to the first joint 131a via the fifth shaft 45.

The first link 14 may be provided in the first joint 131a, the first link 14 may be provided in the second joint 123 on the corresponding side, or the first link 14 may be provided between the first joint 131a and the second joint 123. In this way, the first link 14 cannot be seen from the outside of the stroller, making the stroller neat and attractive in appearance. The first link 14 is preferably an arc-shaped rod having an arc-shaped structure, so that the sizes of the first joint 131a and the second joint 123 can be reduced.

As shown in fig. 4, 5, 8, 9, 12, 13, 15 and 16, the second connector 123 is provided with a first sliding groove 123a, the third shaft 43 is located in the first sliding groove 123a, and when the stroller is unfolded and folded, the push rod 13 rotates so that the third shaft 43 slides along the extending direction of the first sliding groove 123 a. The first chute 123a has an arc-shaped structure centered on the axis of the first shaft 41.

As shown in fig. 4, 5, 8, 9, 12, 13, 15 and 16, the second joint 123 is provided with a second sliding groove 123b, and the fourth shaft 44 is located in the second sliding groove 123b, and when the stroller is unfolded and folded, the push rod 13 rotates to drive the first connecting rod 14 to rotate, so that the fourth shaft 44 slides along the extending direction of the second sliding groove 123 b. The second chute 123b has an arc-shaped structure centered on the axis of the second shaft 42.

Through set up first spout 123a and second spout 123b respectively on second joint 123 for can form when push rod 13 and first connecting rod 14 rotate and dodge in the child shallow expansion and folding operation in-process, thereby do not influence child shallow's expansion and folding operation, set up like this, can make child shallow's compact structure, reduce child shallow's volume. The first chute 123a and the second chute 123b can also limit and guide the movement of the push rod 13 and the first link 14.

The baby stroller further comprises a seat assembly 5, the seat assembly 5 comprises a seat 51 and a backrest 52, the lower part of the backrest 52 is rotationally connected with the rear part of the seat 51, the seat assembly 5 is rotationally arranged on the stroller frame, so that the backrest 52 can rotate relative to the seat 51 to enable the seat assembly 5 to be folded when the baby stroller is folded, the whole seat assembly 5 can rotate relative to the stroller frame to be close to the stroller frame, the baby stroller can be folded with the seat assembly 5, and the folding operation of the baby stroller is convenient.

The lower part of the seat assembly 5 is rotatably connected with the lower part of the push rod 13, the upper part of the front bracket 11 or the upper part of the rear bracket 12. In this embodiment, the lower portion of the seat 51 is fixedly provided with the connection seat 53, and the connection seat 53, the first joint 131a and the second joint 123 are coaxially rotatably connected through the first shaft 41, thus making the structure of the stroller simple.

When the stroller is in the deployed state, the upper strut 112 extends upwardly mostly outside of the lower strut 111 and the upper pushrod 132 extends upwardly mostly outside of the lower pushrod 131. The seat assembly 5 is in the deployed state as shown in fig. 1-4.

When the stroller is folded, the backrest 52 is rotated forward to bring it closer to the seat 51, and the seat assembly 5 is rotated downward about the first axis 41 as a whole to bring it closer to the front frame 11, as shown in fig. 6-9. After the upper push rod 132 slides downwards to be close to the lower push rod 131, the push rod 13 integrally rotates downwards around the first shaft 41 to be close to the rear bracket 12, so that the third shaft 43 slides downwards along the extending direction of the first sliding groove 123a, the first connecting rod 14 rotates, and the fourth shaft 44 slides upwards along the extending direction of the second sliding groove 123b, and the front bracket 11 is driven to rotate backwards to be close to the rear bracket 12. When the push rod 13 rotates downwards, the fifth shaft 45 moves upwards, so that the lower support rod 111 is pulled by the second connecting rod 15 to slide upwards relative to the upper support rod 112, the upper support rod 112 and the lower support rod 111 are close, and the folding process is shown in fig. 10-13. Until the bars making up the trolley frame are brought together tightly, the seat assembly 5 is brought together with the trolley frame and finally folded as shown in fig. 14. When the child stroller is in a folded state, the child stroller is compact in structure, small in size and convenient to carry and store.

Example 2

In this embodiment, the structures of the front bracket 11 and the rear bracket 12 are exchanged, and the rest is communicated with embodiment 1. That is, the rear bracket 12 is a telescopic link assembly, and the rear bracket 12 includes a lower strut 111 and an upper strut 112, the upper strut 112 being slidably provided on the lower strut 111 along a length extending direction of the lower strut 111. The front bracket 11 includes side struts 121 disposed at left and right sides, respectively, and a cross bar 122 connected between lower portions of the side struts 121 at the left and right sides.

The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims (10)

1. The utility model provides a children's shallow, includes that have the shallow frame of expansion state and folding state, set up the front wheel subassembly of the bottom front portion of shallow frame and set up the rear wheel subassembly of the bottom rear portion of shallow frame, its characterized in that: the cart frame comprises a front support, a rear support, a push rod, a first connecting rod and a second connecting rod, wherein one of the upper part of the front support and the upper part of the rear support is a telescopic rod assembly, the telescopic rod assembly comprises a lower supporting rod and an upper supporting rod which can be arranged on the lower supporting rod in a sliding manner along the length extending direction of the lower supporting rod, the other of the upper part of the front support and the upper part of the rear support is rotationally connected with the lower part of the push rod through a first shaft, the other of the upper part of the front support and the upper part of the rear support is rotationally connected with the upper part of the upper supporting rod through a second shaft, one end part of the first connecting rod is rotationally connected with the lower part of the push rod through a third shaft, the other end part of the first connecting rod is rotationally connected with the upper part of the upper supporting rod through a fourth shaft, the other end part of the second connecting rod is rotationally connected with the lower part of the push rod through a fifth shaft, and the other end part of the second connecting rod is rotationally connected with the lower supporting rod through a sixth shaft.

2. The stroller of claim 1, wherein: the other of the upper part of the front bracket and the upper part of the rear bracket is provided with a first chute, and the third shaft is slidably arranged in the first chute along the extending direction of the first chute.

3. The stroller of claim 2, wherein: the first sliding groove is an arc groove taking the axis of the first shaft as the center of a circle.

4. The stroller of claim 1, wherein: the other of the upper part of the front bracket and the upper part of the rear bracket is also provided with a second chute, and the fourth shaft is slidably arranged in the second chute along the extending direction of the second chute.

5. The stroller of claim 4, wherein: the second sliding groove is an arc groove taking the axis of the second shaft as the center of a circle.

6. The stroller of claim 1, wherein: the lower part of push rod is provided with first joint, be provided with the second joint on the other of front bracket's upper portion and rear bracket's upper portion, first joint with the second connects through first axle rotation connects, first connecting rod sets up in the first joint, or set up in the second connects, or set up between the first joint and the second connects.

7. The stroller of claim 1, wherein: the telescopic rod assembly and the push rod are respectively arranged in the middle of the left and right directions of the cart frame, the other one of the front support and the rear support comprises side support rods respectively arranged on the left side and the right side and a cross brace rod connected between the side support rods on the left side and the right side, and the first connecting rod and the second connecting rod are respectively arranged on the left side and the right side of the telescopic rod assembly.

8. The stroller of claim 1, wherein: the first connecting rod is an arc-shaped rod.

9. The stroller of claim 1, wherein: the front support is a telescopic rod assembly, the front wheel assembly is arranged at the lower part of the lower support rod, and the rear wheel assembly is arranged at the lower part of the rear support.

10. The stroller of claim 1, wherein: the child stroller further comprises a seat assembly, wherein the lower part of the seat assembly is rotatably connected with the lower part of the push rod, the upper part of the front bracket or the upper part of the rear bracket.