CN111731370A - stroller - Google Patents

Abstract

The invention discloses a children's stroller. The stroller frame includes a front bracket, a rear bracket and a push rod frame. The upper part of the front bracket is rotatably connected with the lower part of the push rod frame, and the upper part of the rear bracket rotates is connected to the push rod frame, the cart frame further includes a seat frame and a connecting frame, the front part of the seat frame is fixedly arranged on the front bracket, and the connecting frame is rotatably connected to the between the seat frame and the rear bracket. When the cart frame is folded, the push rod frame rotates relative to the front support and rotates to the rear of the rear support, and the distance between the rear part of the seat frame and the push rod frame gradually decreases. The backrest cloth cover between the rear part and the push rod frame will not be pulled to affect the folding of the backrest, so the cart frame does not need to reset the backrest to a specific position and then fold it when folded. The folding operation is convenient, which brings great convenience to the user's daily use.

Description

stroller

technical field

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

Background technique

In the prior art, there are various structures of children's strollers. The stroller frame usually includes a front bracket, a rear bracket and a push rod frame that are rotatably connected to each other and can be unfolded and folded relative to each other. The stroller frame is also provided with a seat. Seat mechanism with backrest for carrying children. However, when folded, it is often necessary to adjust the backrest relative to the seat to a certain gear before folding the stroller frame, so as to avoid the relative movement of the rods on the stroller frame to the seat cloth. The folding operation of the cart frame is affected by the pulling of the sleeve, which causes inconvenience in the folding operation of the cart frame and affects the use experience.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a children's stroller with a novel structure in order to overcome the defects of the prior art.

In order to achieve the above purpose, the technical solution adopted in the present invention is: a child stroller, comprising a stroller frame having an unfolded state and a folded state, a front wheel assembly arranged at the bottom front of the stroller frame, a rear wheel assembly at the bottom rear of the cart frame, and a locking mechanism for locking the cart frame in the unfolded state, the cart frame includes a front support, a rear support and a push rod frame, The upper part of the front bracket is rotatably connected with the lower part of the push rod frame, the upper part of the rear bracket is rotatably connected to the push rod frame, and the cart frame further includes a seat frame and a connecting frame. The front part of the seat frame is fixedly arranged on the front bracket, the connecting frame is rotatably connected between the seat frame and the rear bracket, when the cart frame is in a folded state, the push The pole frame is turned backward to be gathered at the rear side of the rear bracket.

Preferably, the stroller further includes a backrest that is arranged behind the seat frame and can be turned back and forth relative to the seat frame. When the stroller frame is in a folded state, the backrest is turned backward and is in contact with the seat frame. The push rod frame and the rear bracket are folded together.

Further, during the transition of the cart frame from the unfolded state to the folded state, the push rod frame is turned backward, and the distance between the lower end of the backrest and the push rod frame gradually decreases.

Further, the stroller further includes a cloth cover assembly, the cloth cover assembly includes a seat cloth cover connecting the seat frame and the backrest, and a side part of the seat cloth cover and the push rod. Backrest cover between shelves.

Preferably, the included angle formed between the length extension direction of the seat frame and the length extension direction of the front support is an acute angle. When the cart frame is converted from the unfolded state to the folded state, the seat frame The rear moves towards the pushrod frame.

Preferably, the front support has two sets of front support rods that are arranged on the left and right sides and both extend in the up-down direction, and the rear support has two sets of rear support rods that are arranged on the left and right sides and both extend in the up-down direction. The push rod frame has two sets of push rods that are arranged on the left and right sides and both extend in the up and down direction. On the left and right sides of the cart frame, the upper part of the front support rod and the lower part of the push rod pivot The upper part of the rear support rod is pivotally connected to the push rod, and the seat frame is fixedly arranged between the front support rods on both sides.

Further, the seat frame has two seat posts that are arranged on the left and right sides and both extend in the front-rear direction, and the connecting frame has two groups that are arranged on the left and right sides. , the connecting frame is rotatably connected between the seat post and the rear support rod, and the rotational connection between the connecting frame and the seat post is located in the front support rod and the rear support rod in the front-rear direction. between the seat post and the rear stay in the left-right direction.

Further, the connecting frame has a connecting rod portion extending in the front-rear direction, and a strut portion extending downward and backward from the rear end of the connecting rod portion, and the front end of the connecting rod portion is rotatably connected. On the seat post, the rear part of the support rod is rotatably connected to the rear support rod, and when the cart frame is in the unfolded state, the connecting rod part and the seat post are parallel to each other and at the same height.

Preferably, the cart frame further includes a front attachment, the rear part of the front attachment is rotatably connected to the upper part of the front bracket, and a connecting rod is also rotatably connected between the front attachment and the connecting frame In the process of folding the cart frame by rotating the connecting frame relative to the seat frame, the connecting rod drives the front accessory to be folded on the front side of the front bracket.

Further, the front accessory is a front armrest or a plate rack, and the rear portion of the front accessory, the upper portion of the front bracket and the lower portion of the push rod rack are rotatably connected to each other.

Due to the application of the above-mentioned technical solutions, the present invention has the following advantages compared with the prior art: the child stroller of the present invention, by fixing the seat frame on the front bracket, when the stroller frame is folded, the push rod frame During the process of rotating relative to the front bracket and turning and retracting the rear bracket, the distance between the rear part of the seat frame and the push rod frame gradually decreases, so that the backrest cloth disposed between the rear part of the seat frame and the push rod frame The sleeve will not be pulled to affect the folding of the backrest, so the cart frame does not need to reset the backrest to a specific position and then fold it when folded, and the folding operation is convenient, which brings convenience to the user's daily use. great convenience.

Description of drawings

Accompanying drawing 1 is the three-dimensional schematic diagram under the unfolded state of the stroller of the present invention;

2 is a schematic side view of the stroller of the present invention in an unfolded state;

Accompanying drawing 3 is the side view schematic diagram during the folding process of the stroller of the present invention;

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

Among them: 1. Front bracket; 11. Front strut; 12. Footboard; 2. Rear bracket; 21. Rear strut; 22. Rear crossbar; ; 33, push rod locking piece; 4, seat frame; 41, seat post; 42, seat cross bar; 5, connecting frame; 51, connecting rod part; 52, strut part; 6, front attachment; 7, connecting rod 8. Backrest; 81. Backrest cover; 9. Basket rod; 10. Front wheel assembly; 20. Rear wheel assembly; 30. Locking joint.

Detailed ways

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

Referring to the child stroller shown in FIGS. 1 to 4 , it includes a stroller frame having an unfolded state and a folded state, a front wheel assembly 10 arranged at the front of the bottom of the stroller frame, and a front wheel assembly 10 arranged at the back of the bottom of the stroller frame. The rear wheel assembly 20 of the portion, and a locking mechanism for locking the cart frame in the deployed state. The cart frame includes a front bracket 1 , a rear bracket 2 and a push rod frame 3 . The cart frame also includes a seat frame 4 and a connecting frame 5 . The front part of the seat frame 4 is fixedly arranged on the front bracket 1 , and the connecting frame 5 is rotatably connected between the seat frame 4 and the rear bracket 2 .

Specifically, the front bracket 1 includes two sets of front struts 11 arranged on the left and right sides and extending in the up-down direction, and a footboard 12 fixed between the lower parts of the two front struts 11 and extending in the left-right direction. The front wheel assembly There are two groups of 10 and both are arranged on the bottom of the footboard 12 . The rear bracket 2 includes two sets of rear struts 21 arranged on the left and right sides and extending in the up-down direction, and rear cross bars 22 fixed between the lower parts of the two rear struts 21 and extending in the left-right direction. A set of rear wheel assemblies 20 are mounted on the lower part of 21 . The push rod frame 3 has two sets of push rods 31 respectively arranged on the left and right sides and extending in the up-down direction, push handles 32 respectively rotatably connected to the upper parts of the push rods 31 at the lower ends of the two ends, and a push rod 32 and a push rod. The rotational connection between the rods 31 is used for a push handle lock 33 that locks the two relative to each other. On the left and right sides of the cart frame, the upper part of the front support rod 11 is pivotally connected to the lower part of the push rod 31, the upper part of the rear support rod 21 is pivotally connected to the push rod 31, and the seat frame 4 is fixedly arranged on both sides. between the front struts 11.

The seat frame 4 has two seat bars 41 respectively arranged on the left and right sides and extending in the front-rear direction, and a seat rail 42 fixed between the rear parts of the two seat bars 41. The seat post 41 is an integral U-shaped rod, and the front end of the seat post 41 is fixedly connected to the front support rod 11 on the corresponding side.

Correspondingly, the connecting frame 5 has two groups which are respectively arranged on the left and right sides. On the left and right sides of the cart frame, the connecting frame 5 is rotatably connected between the seat post 41 and the rear support rod 21, and the connecting frame 5 and the seat post 41 are rotatably connected. The rotational connection is located between the front support rod 11 and the rear support rod 21 in the front-rear direction, and is located between the seat post 41 and the rear support rod 21 in the left-right direction. Specifically, the connecting frame 5 has a connecting rod portion 51 extending in the front-rear direction, and a support rod portion 52 extending downward and obliquely rearward from the rear end of the connecting rod portion 51. The front end of the connecting rod portion 51 is rotatably connected to the seat post 41 , and the rear portion of the strut portion 52 is rotatably connected to the inner portion of the rear strut 21 . When the cart frame is in the unfolded state, the connecting rod portion 51 and the seat post 41 are parallel to each other and at the same height. Here, when the cart frame is in the unfolded state, the seat post 41 and the connecting rod portion 51 are forward from front to back. It is arranged high and low at the rear, and the included angle formed between the longitudinal extension direction of the seat post 41 and the longitudinal extension direction of the front support rod 11 is an acute angle.

The stroller further includes a backrest 8 which is arranged behind the seat frame 4 and can be turned back and forth relative to the seat frame 4 . The stroller also includes a cloth cover assembly, which includes a seat cloth cover (not shown in the figure) connecting the seat frame 4 and the backrest 8, and a seat cloth cover connected between the side edge of the seat cloth cover and the push rods 31 on both sides Backrest cover 81 between. Specifically, the seat cloth cover covers the seat frame 4 and the backrest 8, so that the seat frame 4 and the backrest 8 are not exposed, and the seat frame 4 supports the seat on which the child sits. By adjusting the backrest cloth cover 81, the angle of the backrest 8 can be adjusted, so that the backrest 8 can provide leaning support in different gears.

On the left and right sides of the stroller frame, a locking joint 30 is provided at the rotational connection between the upper part of the front support rod 11 and the lower part of the push rod 31 . When the locking joint 30 is locked, the front bracket 1 in the stroller frame is locked. , The rear bracket 2 , the push rod frame 3 , the seat frame 4 and the connecting frame 5 are mutually locked so that the cart frame can be stably locked.

Referring to the drawings, the cart frame further includes a front attachment 6, and the front attachment 6 may be the plate rack shown in this embodiment, or may be a front armrest. The rear part of the front attachment 6 is rotatably connected to the upper part of the front bracket 1 . In this embodiment, on the left and right sides of the cart frame, the rear part of the front attachment 6 , the upper part of the front support rod 11 and the lower part of the push rod 31 are rotatably connected to each other and locked by the locking joint 30 . A connecting rod 7 is also rotatably connected between the front attachment 6 and the connecting frame 5 . The connecting rod 7 extends in the up-down direction, and its upper end is rotatably connected to the bottom of the front attachment 6 , and its lower end is rotatably connected to the connecting frame 5 . on the connecting rod portion 51.

In this way, when the cart frame is in the unfolded state, as shown in Figures 1 and 2, the front bracket 1, the rear bracket 2, the push rod bracket 3, the seat bracket 4 and the connecting bracket 5 are relatively unfolded and relatively locked by the locking mechanism, On the left and right sides of the cart frame, the front support rod 11 and the push rod 31 are relatively unfolded and extend along the same length direction. The seat post 41 and the connecting frame 5 are supported between the front support rod 11 and the rear support rod 21. In the unfolded state, the frame has a simple structure and good stability.

When it is necessary to fold the cart frame, as shown in Figure 2 and Figure 3, after unlocking the locking mechanism, first fold the push handle 32 of the push rod frame 3 relative to the push rod 31, and then drive the push rod frame 3 Turn it backwards to gradually close it toward the rear side of the rear bracket 2, so that the push rod frame 3 rotates relative to the front frame 1, so that the rear part of the seat frame 4 moves closer to the push rod frame 3, and the lower end of the backrest 4 is connected to the push rod frame. The distance between 3 gradually decreases, so that the backrest cover 81 is gradually released. In this way, no matter which working position the backrest 8 is in when the stroller frame is unfolded, under the action of its own gravity, the backrest 8 is turned backward and folded toward the rear bracket 2 , forming a gap between the backrest 8 and the bottom surface of the seat frame 4 . Angles less than 90 degrees. At the same time, the connecting rod 7 drives the front attachment 6 to rotate relative to the front bracket 1 to be folded toward the front side of the front bracket 1 .

Finally, the folding of the cart frame is completed as shown in Figure 4. The front bracket 1, the rear bracket 2, the push rod bracket 3, the seat bracket 4, the connecting bracket 5 and the backrest 8 are folded together, and the front wheel assembly 10 and the rear wheel assembly are folded together. 20 are close to each other and stand on the ground. It can be seen that the frame of the cart is simple in structure, convenient in folding operation, and compact in structure after being folded, which brings convenience to the daily use of users.

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. The utility model provides a children's shallow, includes the shallow frame that has expansion state and fold condition, locates anterior front wheel subassembly at the bottom of the shallow frame, locate the rear wheel subassembly at rear portion at the bottom of the shallow frame, and be used for with the locking mechanical system of shallow frame locking under expansion state, its characterized in that: the utility model discloses a shallow, including shallow frame, rear support, push rod frame, front support's upper portion with the lower part of push rod frame rotates to be connected, the upper portion of rear support rotates to be connected on the push rod frame, the shallow frame still includes seat frame and link, the front portion of seat frame sets up fixedly on the front support, the link rotates to be connected the seat frame with between the rear support, work as when the shallow frame is in fold condition, the push rod frame overturns backward and draws in the rear side of rear support.

2. The stroller of claim 1, wherein: the stroller is characterized in that the stroller is further provided with a seat frame rear part which can be opposite to the backrest capable of being turned back and forth, and when the stroller frame is in a folded state, the backrest is turned back and is folded with the push rod frame and the rear support frame.

3. The stroller of claim 2, wherein: in the process that the cart frame is converted from the unfolding state to the folding state, the push rod frame is turned backwards, and the distance between the lower end part of the backrest and the push rod frame is gradually reduced.

4. The stroller of claim 2, wherein: the stroller further comprises a cloth cover assembly, wherein the cloth cover assembly comprises a seat cloth cover connected with the seat frame and the backrest, and a backrest cloth cover connected between the side edge part of the seat cloth cover and the push rod frame.

5. The stroller of claim 1, wherein: an included angle formed between the length extending direction of the seat frame and the length extending direction of the front support is an acute angle, and when the stroller frame is converted from an unfolded state to a folded state, the rear part of the seat frame approaches the push rod frame to move.

6. The stroller of claim 1, wherein: the utility model discloses a shallow, including the front truck frame, the rear truck frame, the front truck frame is provided with the branch and locates the left and right sides and all follow two sets of front struts that the upper and lower direction extends, the rear truck frame has the branch and locates the left and right sides and all follow two sets of push rods that the upper and lower direction extends, on each side of the left and right sides of shallow frame, the upper portion of front strut with the lower part pivotal connection of push rod, the upper.

7. The stroller of claim 6, wherein: the seat frame has and divides and locates the left and right sides and all follow two seat poles that the fore-and-aft direction extends, the link has and divides two sets of that locate the left and right sides, on each side about the shallow frame, the link is connected with rotating the seat pole with between the back branch, the link with the rotation junction of seat pole is located along the fore-and-aft direction front branch with between the back branch, and is located along controlling the direction seat pole with between the back branch.

8. The stroller of claim 7, wherein: the connecting frame is provided with a connecting rod part extending along the front-back direction and a supporting rod part extending downwards and backwards from the rear end of the connecting rod part, the front end of the connecting rod part is rotatably connected to the seat rod, the rear part of the supporting rod part is rotatably connected to the rear supporting rod, and when the stroller frame is in an unfolded state, the connecting rod part and the seat rod are parallel to each other and are located at the same height.

9. The stroller of claim 1, wherein: the stroller frame further comprises a front accessory, the rear part of the front accessory is rotatably connected to the upper part of the front support, a connecting rod is further rotatably connected between the front accessory and the connecting frame, and the connecting rod drives the front accessory to be folded at the front side of the front support in the process that the connecting frame rotates relative to the seat frame to fold the stroller frame.

10. The stroller of claim 9, wherein: the front accessory is a front armrest or a dinner plate rack, and the rear part of the front accessory, the upper part of the front bracket and the lower part of the push rod rack are mutually and rotatably connected together.

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