CN111605601B - Child cart - Google Patents

Abstract

The present invention relates to a child stroller, comprising a stroller frame, the stroller frame comprising a front support, a rear support, a push rod, a front connecting rod rotatably connected to the front support, and a rear connecting rod rotatably connected to the front connecting rod, two of the front support, the rear support, and the push rod are rotatably connected, and the third is rotatably connected to one of the two, or the three are rotatably connected through the same pivot, and the rear connecting rod is also rotatably connected to the rear support, the stroller frame also comprises a support rod, one end of the support rod is slidably and rotatably arranged with the push rod, and the other end is slidably and rotatably arranged with the rear connecting rod, and the support rod is also rotatably connected with the rear support. When the stroller is folded, the push rod is turned downward and moved closer to the rear support, and at the same time, the two ends of the support rod slide on the push rod and the rear connecting rod respectively, driving the rear connecting rod to move closer to the rear support, and then driving the front support to move closer to the rear support, and finally completing the folding, the folding operation is convenient, the volume is small after folding, and it is easy to carry.

Description

A child stroller

Technical Field

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

Background Art

In the prior art, a child stroller generally includes a stroller frame having an unfolded state and a folded state, a front wheel assembly and a rear wheel assembly, and the stroller frame is locked by a locking mechanism when in the unfolded state. At present, there are many structures that can fold the stroller frame, and the number of stroller frame rods is different, and the connection positions between the rods are different, so the folding principles and folding methods are different, and the effects after folding are also different.

Summary of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an improved baby stroller.

In order to solve the above technical problems, the present invention adopts the following technical solutions:

The stroller according to claim 1, wherein the front wheel assembly and the rear wheel assembly are rotatably connected to each other and are adapted to move the child's stroller to a desired position. The stroller frame comprises a front bracket having the front wheel assembly at a lower end, a rear bracket having the rear wheel assembly at a lower end, a push rod, a front connecting rod rotatably connected to the front bracket, and a rear connecting rod rotatably connected to the front connecting rod, wherein two of the front bracket, the rear bracket and the push rod are rotatably connected, and the third is rotatably connected to one of the two, or the three are rotatably connected via the same pivot, and the rear connecting rod is also rotatably connected to the rear bracket. The stroller frame also comprises a support rod, one end of the support rod is slidably and rotatably arranged with the push rod, and the other end of the support rod is slidably and rotatably arranged with the rear connecting rod, and the support rod is also rotatably connected to the rear bracket.

According to some embodiments of the present invention, a first slide is slidably provided on the push rod along the length direction of the push rod, and a second slide is slidably provided on the rear connecting rod along the length direction of the rear connecting rod, the two ends of the support rod are rotatably connected to the first slide and the second slide respectively, and the support rod is slidably connected to the push rod and the rear connecting rod through the first slide and the second slide respectively, and the rotation connection between the support rod and the rear bracket is located between the rotation connection between the support rod and the first slide and the rotation connection between the support rod and the second slide.

Furthermore, the first slide is slidably arranged above the rotational connection between the push rod and one or both of the front bracket and the rear bracket, and the second slide is slidably arranged between the rotational connection between the front connecting rod and the rear connecting rod and the rotational connection between the rear bracket and the rear connecting rod.

According to some implementation aspects of the present invention, the upper end of the front bracket, the upper end of the rear bracket, and the lower end of the push rod are rotatably connected via the same pivot.

Furthermore, the rotation connection between the push rod and the rear bracket, the rotation connection between the support rod and the rear bracket, and the rotation connection between the rear connecting rod and the rear bracket are distributed in sequence from top to bottom on the rear bracket.

Furthermore, the rotational connection between the push rod and the front bracket is located above the rotational connection between the front connecting rod and the front bracket.

According to some implementation aspects of the present invention, the front link and the rear link extend along the front-rear direction of the cart respectively, and the rotation connection between the front link and the rear link is located between the front bracket and the rear bracket.

According to some embodiments of the present invention, the rear connecting rod extends along the front-to-rear direction of the cart, and when the cart is in the unfolded state, the upper end of the support rod is located at the lower part of the push rod, and the lower end of the support rod is located near the rotational connection between the rear connecting rod and the rear bracket; when folded, the upper end of the support rod slides along the push rod toward the upper part of the push rod, and the lower end of the support rod slides along the rear connecting rod toward the front part of the rear connecting rod.

According to some implementation aspects of the present invention, the child stroller further includes a seat pocket detachably disposed on the stroller frame.

Furthermore, the seat pocket is detachably arranged on the front bracket or the push rod.

Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

The stroller for children of the present invention has a simple structure, and a support rod is set between the rear connecting rod and the push rod for sliding and rotation. When folding, the push rod is flipped downward and moved closer to the rear support, and at the same time, the two ends of the support rod slide on the push rod and the rear connecting rod respectively, driving the rear connecting rod to move closer to the rear support, and then driving the front support to move closer to the rear support, and finally completing the folding. The folding operation is convenient, and the volume after folding is small and easy to carry.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of a child stroller in an unfolded state according to an embodiment of the present invention;

FIG2 is a side view of the structure of a child stroller in an expanded state according to an embodiment of the present invention;

FIG3 is a side view of the structure of a child stroller in a semi-folded state according to an embodiment of the present invention (the seat pocket is not folded);

FIG4 is a side view of the structure of a child stroller in a semi-folded state according to an embodiment of the present invention (with the seat pocket folded);

FIG5 is a side view of the structure of a child stroller in a folded state according to an embodiment of the present invention;

In the figure: 1, front wheel assembly; 2, rear wheel assembly; 3, front bracket; 4, rear bracket; 5, push rod; 6, front connecting rod; 7, rear connecting rod; 8, support rod; 9, first slide; 10, second slide; 11, seat pocket;

A, first axis; B, second axis; C, third axis; D, fourth axis; E, fifth axis; F, sixth axis; G, seventh axis.

DETAILED DESCRIPTION

The present invention is further described below with reference to the accompanying drawings and specific embodiments:

The child stroller as shown in Figures 1 to 5 includes a stroller frame with an unfolded state and a folded state, a seat pocket 11 detachably connected to the stroller frame, a front wheel assembly 1, a rear wheel assembly 2 and a locking mechanism for locking the stroller frame in the unfolded state, the stroller frame includes side brackets symmetrically arranged on both sides of the stroller and a plurality of cross bars arranged between the side brackets on both sides, each side bracket includes a front bracket 3 with a front wheel assembly 1 at the lower end, a rear bracket 4 with a rear wheel assembly 2 at the lower end, a push rod 5, a front connecting rod 6 rotatably connected to the front bracket 3, and a rear connecting rod 7 rotatably connected to the front connecting rod 6, two of the front bracket 3, the rear bracket 4 and the push rod 5 are rotatably connected, and the third is rotatably connected to one of the two, or the three are rotatably connected through the same pivot, and the front connecting rod 6 and the rear connecting rod 7 extend along the front and rear directions of the stroller respectively.

In this example, the upper end of the front bracket 3, the upper end of the rear bracket 4, and the lower end of the push rod 5 are rotationally connected via the first axis A, the front part of the front link 6 is rotationally connected to the front bracket 3 via the second axis B, the front part of the rear link 7 is rotationally connected to the rear part of the front link 6 via the third axis C, and the rear link 7 is also rotationally connected to the rear bracket 4 via the fourth axis D.

Each side bracket also includes a support rod 8, the upper end of the support rod 8 is slidably and rotatably arranged with the push rod 5, and the lower end is slidably and rotatably arranged with the rear connecting rod 7. The support rod 8 is also rotatably connected to the rear bracket 4 through the fifth axis E.

In this example, a first slide 9 is slidably provided on the push rod 5 along the length direction of the push rod 5, and a second slide 10 is slidably provided on the rear connecting rod 7 along the length direction of the rear connecting rod 7. The two ends of the support rod 8 are rotationally connected to the first slide 9 and the second slide 10 through the sixth axis F and the seventh axis G, respectively, and the support rod 8 is slidably connected to the push rod 5 and the rear connecting rod 7 through the first slide 9 and the second slide 10, respectively.

The first slide member 9 is slidably disposed on the push rod 5 above the first axis A, and the second slide member 10 is disposed between the third axis C and the fourth axis D on the rear connecting rod 7 .

As shown in Figure 2, in this example, the rotation connection between the push rod 5 and the front bracket 3 is located above the rotation connection between the front connecting rod 6 and the front bracket 3, that is, the first axis A is located above the second axis B; the rotation connection between the push rod 5 and the rear bracket 4, the rotation connection between the support rod 8 and the rear bracket 4, and the rotation connection between the rear connecting rod 7 and the rear bracket 4 are distributed on the rear bracket 4 from top to bottom, that is, the first axis A, the fifth axis E, and the fourth axis D are distributed from top to bottom; the rotation connection between the rear bracket 4 and the support rod 8 is located between the rotation connection between the first slide 9 and the support rod 8 and the rotation connection between the second slide 10 and the support rod 8, that is, the fifth axis E is located between the sixth axis F and the seventh axis G; the rotation connection between the front connecting rod 6 and the rear connecting rod 7 is located between the front bracket 3 and the rear bracket 4, that is, the third axis C is located between the front bracket 3 and the rear bracket 4.

1-2 , when the cart is in the unfolded state, the upper end of the support rod 8 is located at the lower part of the push rod 5, and the lower end of the support rod 8 is located near the rotation connection between the rear connecting rod 7 and the rear bracket 4. When folded, the upper end of the support rod 8 slides along the push rod 5 toward the upper part of the push rod 5, and the lower end of the support rod 8 slides along the rear connecting rod 7 toward the front part of the rear connecting rod 7.

In this example, the seat pocket 11 is detachably arranged on the front bracket 3. In other embodiments, the seat pocket 11 can also be detachably arranged on the push rod 5. In this example, the seat pocket 11 can also be folded up and down, so that when the stroller frame is folded, the seat pocket 11 can be directly folded on the stroller frame without being removed, as shown in Figures 3 to 5.

The folding principle of the stroller:

As shown in Fig. 1-2, the child stroller is in the unfolded state, the first slide 9 is located at the lower part of the push rod 5, and the second slide 10 is located near the rotation connection between the rear link 7 and the rear bracket 4. When folding the child stroller, the push rod 5 is operated to flip downward and move closer to the rear bracket 4, and at the same time, the first slide 9 slides on the push rod 5 toward the upper part of the push rod 5, and the second slide 10 slides on the rear link 7 toward the front part of the rear link 7, driving the rear link 7 and the rear bracket 4 to move closer to each other, the front link 6 and the rear link 7 to move closer to each other, and then driving the front bracket 3 and the rear bracket 4 to move closer to each other, until the stroller frame is folded, as shown in Fig. 5. The seat pocket 11 can be folded separately, and after folding, the seat pocket 11, the front bracket 3, the rear bracket 4, and the push rod 5 move closer to each other and are distributed in sequence.

When the child stroller is folded, the seat pocket 11 can be folded first and then the stroller frame, or the stroller frame can be folded first and then the seat pocket 11, or the seat pocket 11 can be folded when the stroller frame is folded to a semi-folded state, as shown in FIG. 4 .

The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly. They cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a children's shallow, includes push away frame, front wheel subassembly, rear wheel subassembly and the locking mechanical system who is used for with push away the frame lock in the state of expanding of state, push away the frame including the lower tip be equipped with front bracket, the lower tip of front wheel subassembly are equipped with rear bracket, push rod, the rotation of rear wheel subassembly connect front connecting rod on the front bracket and with the back connecting rod that front connecting rod rotates the connection, two in front bracket, rear bracket, the push rod three rotate to be connected, and the third person rotates to be connected with one of them, or the three is through same pivot to be connected, back connecting rod still with the rear bracket rotates to be connected, its characterized in that: the cart frame further comprises a supporting rod, one end part of the supporting rod is arranged in a sliding and rotating mode, the other end part of the supporting rod is arranged in a sliding and rotating mode with the rear connecting rod, the supporting rod is further connected with the rear support in a rotating mode, a first sliding piece is arranged on the pushing rod in a sliding mode in the length direction of the pushing rod, a second sliding piece is arranged on the rear connecting rod in a sliding mode in the length direction of the rear connecting rod, two ends of the supporting rod are respectively connected with the first sliding piece and the second sliding piece in a rotating mode, the supporting rod is respectively connected with the pushing rod and the rear connecting rod in a sliding mode through the first sliding piece and the second sliding piece, the rotating connection part of the supporting rod and the rear support is located between the rotating connection part of the supporting rod and the first sliding piece and the rotating connection part of the supporting rod and the second sliding piece, and the first sliding piece is arranged above one or two of the front support and the rear support, and the second sliding piece is arranged between the rotating connection part of the front connecting rod and the rear support.

2. The stroller of claim 1, wherein: the upper end part of the front bracket, the upper end part of the rear bracket and the lower end part of the push rod are connected through the same pivot.

3. The stroller of claim 2, wherein: the rotary connection part of the push rod and the rear support, the rotary connection part of the support rod and the rear support and the rotary connection part of the rear connecting rod and the rear support are sequentially distributed on the rear support from top to bottom.

4. The stroller of claim 2, wherein: the rotating connection part of the push rod and the front support is positioned above the rotating connection part of the front connecting rod and the front support.

5. The stroller of claim 1, wherein: the front connecting rod and the rear connecting rod extend along the front-rear direction of the cart respectively, and the rotating connection position of the front connecting rod and the rear connecting rod is positioned between the front bracket and the rear bracket.

6. The stroller of any one of claims 1-5, wherein: the rear connecting rod extends along the front-back direction of the trolley, when the trolley is in a unfolding state, the upper end part of the supporting rod is located at the lower part of the push rod, the lower end part of the supporting rod is located at a position close to the rotating connection part of the rear connecting rod and the rear support, and when the trolley is folded, the upper end part of the supporting rod slides towards the upper part of the push rod along the push rod, and the lower end part of the supporting rod slides towards the front part of the rear connecting rod along the rear connecting rod.

7. The stroller of any one of claims 1-5, wherein: the child stroller further comprises a seat pocket detachably arranged on the stroller frame.

8. The stroller of claim 7, wherein: the seat pocket is detachably arranged on the front support or the push rod.