CN217892951U - Children's barrow - Google Patents

Abstract

The utility model discloses a children's shallow, including fore-stock, after-poppet, handrail frame, upper push rod frame, lower carriage, end link and back link, and can follow the length extending direction relative slip ground of after-poppet sets up slide bar on the after-poppet, the upper portion of fore-stock, the upper portion of after-poppet and the lower part of handrail frame are connected mutually rotatoryly, and the lower part of upper push rod frame and the upper portion pivot connection of lower carriage, the upper portion pivot connection of handrail frame are on upper push rod frame, and the lower part pivot connection of lower carriage is on the after-poppet, and end link pivot connection is between fore-stock and slide bar, and the after-poppet pivot connection is between lower carriage and slide bar. The folded stroller has a compact overall structure and small occupied space, and brings convenience to daily use of a user.

Description

Children's barrow

Technical Field

The utility model relates to a children's shallow.

Background

The existing stroller has various structures, different numbers of rods and different connection relationships, and accordingly, the folding principle, the folded shape and the folded size are different, so that how to make the structure of the stroller frame as simple as possible and the folded volume as small as possible on the premise of ensuring the good stability and the normal use performance of the stroller is always a goal continuously pursued by the technicians in the field.

On the other hand, some three-wheeled carts are available in the market, such as a cart type commonly called a treadmill, in which the distance between the front wheel assembly and the rear wheel assembly in the frame is large in the front-rear direction, and a connecting rod assembly is usually required to be arranged between the front wheel support and the rear wheel support so as to drive the front wheel support and the rear wheel support to be close together in the front-rear direction in the frame folding process.

Disclosure of Invention

The utility model aims at providing a children's shallow of novel structure.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a children's barrow, have deployment state and fold condition, the said children's barrow includes the front bracket, rear bracket, handrail frame, upper push rod frame and lower push rod frame that extend along the upper and lower direction separately under the deployment state, there are front wheel assemblies the bottom of the said front bracket, there are rear wheel assemblies the left and right sides of the said rear bracket; the child stroller comprises a front support, a rear support, a handrail frame, an upper push rod frame, a lower connecting frame and a slide rod, wherein the front support, the rear support and the lower handrail frame are in pivot connection with one another, the third handrail frame is in pivot connection with one of the front support, the rear support and the lower handrail frame, or the front support, the rear support and the lower handrail frame are in pivot connection around the same rotation center line; one end pivot of back link is in on the lower carriage, another tip pivot of back link is in on the slide bar, work as the children's shallow is in under fold condition, fore-stock, end link, after-poppet, handrail frame, lower carriage and last push rod frame draw in each other along the fore-and-aft direction, the slide bar is located the lower part of after-poppet, the front wheel subassembly draws in two sets of along left right direction between the rear wheel subassembly.

Preferably, the rear wheel assembly is rotatably connected to a lower portion of the rear frame about a rear wheel axle extending in a left-right direction, and the slide bar is at least partially located below the rear wheel axle in a length extending direction of the rear frame when the stroller is in the folded state.

Further, when the stroller is in the unfolded state, the bottom connecting frame extends in the front-back direction, the rear connecting frame extends in the up-down direction, the rear portion of the bottom connecting frame is pivotally connected to the slide bar around a first rotation center line, the lower portion of the rear connecting frame is pivotally connected to the slide bar around a second rotation center line, the first rotation center line is located above the second rotation center line along the length extension direction of the slide bar, and when the stroller is in the unfolded state, the first rotation center line and the second rotation center line are both located above the axis line of the rear wheel shaft; when the child stroller is in a folded state, the first rotating center line and the second rotating center line are both located below the axis line of the rear wheel shaft.

In some embodiments, when the stroller is in the folded state, the sliding bar extends at least partially below a solid body of the rear bracket, and the second pivot axis is located below the solid body of the rear bracket.

Preferably, the stroller further comprises a seat frame extending in the front-rear direction in the unfolded state, the seat frame comprises a front seat rod and a rear seat rod which can slide and extend in the front-rear direction, the front part of the front seat rod is pivotally connected to the armrest frame, and the rear part of the rear seat rod is pivotally connected to the lower push rod frame.

In some embodiments, the rear portion of the rear seat post is pivotally connected to the lower push rod frame about the same center line of rotation as the upper portion of the rear connecting frame.

Preferably, the after-poppet has the branch and locates the left and right sides and all be two back branches that extend from the back tilt up forward, every side all be provided with on the back branch the slide bar, the slide bar is including following the length extending direction relative slip ground of back branch sets up the body of rod in the pole chamber of back branch, and stretch out two connectors outside the pole chamber of back branch, two the connector is located same one side of back branch, end link back link respectively pivot connection in on the connector.

In some embodiments, the lower side of the rear strut has an open slot extending along the length of the rear strut, the open slot communicating with the rod cavity of the rear strut, and the connector is slidably inserted into the open slot; the upper side part of the rear supporting rod is provided with a connecting seat, and the rear wheel assembly is rotationally connected to the connecting seat.

In some embodiments, the front support has two front support rods respectively disposed at left and right sides and each extending obliquely upward from front to back, and a mounting seat fixedly disposed between lower portions of the two front support rods, and the front wheel assembly is disposed at a bottom of the mounting seat, wherein each of the front support rods extends obliquely outward from front to back in the left-right direction.

In some embodiments, the front support has two front struts which are respectively arranged on the left and the right and are both inclined upwards from front to back, the armrest frame has two hand bars which are respectively arranged on the left and the right and are both extended along the up-down direction, the lower hand bar frame has two lower hand bars which are respectively arranged on the left and the right and are both extended along the up-down direction, the upper hand bar frame has two upper hand bars which are respectively arranged on the left and the right and are all extended along the up-down direction, the bottom connection frame has two bottom connection rods which are respectively arranged on the left and the right, the rear connection frame has two rear connection rods which are respectively arranged on the left and the right, the upper part of the front strut is respectively pivoted with the lower part of the rear strut, the upper part of the lower hand bar is pivoted with the lower part of the upper hand bar, the upper part of the hand bar is pivoted on the upper hand bar, the bottom connection rod is pivoted between the front strut and the slide bar, and the rear connection rod is pivoted between the lower hand bar and the slide bar.

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 is at folding in-process, and the in-process that draws in the upset of push up bar frame push down rod frame relatively, slide bar edge after-poppet lapse, the linkage makes the fore-stock backward draw in and realize the holistic folding up of children's shallow towards after-poppet upset, and folding operations is convenient easy to carry. The folded stroller has a compact overall structure and small occupied space, and brings convenience to daily use of a user.

Drawings

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

FIG. 2 is a side view of the stroller of FIG. 1;

FIG. 3 is a front view of the stroller of FIG. 1;

FIG. 4 isbase:Sub>A sectional view taken along line A-A of FIG. 3;

FIG. 5 is a schematic perspective view of the stroller shown in FIG. 1 during folding;

FIG. 6 is a side view of the stroller of FIG. 5;

fig. 7 is a longitudinal structure view of the stroller of fig. 6;

FIG. 8 is a schematic perspective view of the stroller of FIG. 1 in a folded state;

FIG. 9 is a side view of the stroller of FIG. 8;

fig. 10 is a longitudinal structural view of the stroller of fig. 9;

wherein: 1. a front bracket; 11. a front support rod; 12. a mounting seat; 2. a rear bracket; 21. a rear support rod; 22. a rear cross bar; 2a, a connecting seat; 3. a slide bar; 3a, a rod body; 3b, a connector; 4. an armrest frame; 41. a grab rail; 5. a lower push rod frame; 51. a lower push rod; 6. A bottom connecting frame; 61. a bottom link; 7. a rear connecting frame; 71. a rear connecting rod; 8. a seat frame; 81. a front seat post; 82. a rear seat post; 9. an upper push rod frame; 91. a push rod is arranged; 10. a front wheel assembly; 20. a rear wheel assembly; 20a, rear axle.

Detailed Description

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

The following descriptions of the front, rear, left, right, up and down directions and the like are defined with reference to the directions observed by a stroller operator who pushes the stroller when the stroller is in the unfolded state, and are only intended to clearly illustrate the relative positions of the lever members of the stroller.

Referring to fig. 1 to 10, the stroller having an unfolded state and a folded state includes a front frame 1, a rear frame 2, a slide bar 3, a handle frame 4, a lower push bar frame 5, a bottom link frame 6, a rear link frame 7, an upper push bar frame 9, and a front wheel assembly 10 and a rear wheel assembly 20. Referring to fig. 1 to 4, in the unfolded state of the stroller, the front frame 1, the rear frame 2, the handle frame 4, the lower push rod frame 5, and the upper push rod frame 9 each extend in the vertical direction, the bottom link frame 6 extends in the front-rear direction, and the rear link frame 7 extends in the vertical direction.

The front wheel assemblies 10 are provided at the bottom of the front frame 1, the rear wheel assemblies 20 are provided in two sets and are respectively provided at the left and right sides of the rear frame 2, two of the upper portion of the front frame 1, the upper portion of the rear frame 2 and the lower portion of the armrest frame 4 are pivotally connected and the third one is pivotally connected to one of the two, or the upper portion of the front frame 1, the upper portion of the rear frame 2 and the lower portion of the armrest frame 4 are pivotally connected together around the same rotation center line. The lower part of the upper push rod frame 9 is pivotally connected with the upper part of the lower push rod frame 5, the upper part of the handrail frame 4 is pivotally connected on the upper push rod frame 9, and the lower part of the lower push rod frame 5 is pivotally connected on the rear bracket 2. The slide rod 3 can be arranged on the rear bracket 2 in a way of relatively sliding along the length extension direction of the rear bracket 2, the front part of the bottom connecting bracket 6 is pivoted on the front bracket 1, and the rear part of the bottom connecting bracket 6 is pivoted on the slide rod 3; the upper part of the rear link frame 7 is pivotally connected to the lower push rod frame 5, and the lower part of the rear link frame 7 is pivotally connected to the slide rod 3.

In the process of converting the child stroller from the unfolding state to the folding state, the upper push rod frame 9 overturns forwards relative to the lower push rod frame 5, the armrest frame 4 and the lower push rod frame 5 both overturn backwards, the front support 1 is folded backwards towards the rear support 2, and the lower push rod frame 5 is folded downwards towards the rear support 2 in the process of downwards sliding the slide rod 3 along the rear support 2. When the stroller is converted to a folded state, the front support 1, the bottom connecting frame 6, the rear support 2, the rear connecting frame 7, the armrest frame 4, the lower push rod frame 5 and the upper push rod frame 9 are folded in each other along the front-rear direction, the slide rod 3 is positioned at the lower part of the rear support 2, and the front wheel assembly 10 is folded in between the two sets of rear wheel assemblies 20 along the left-right direction.

Referring to the drawings, the rod members of the stroller in this embodiment are specifically arranged as follows:

the front bracket 1 has two front support rods 11 which are respectively arranged at the left side and the right side and are respectively inclined upwards from front to back and extend, and a mounting seat 12 fixedly arranged between the lower parts of the two front support rods 11, wherein the front support rods 11 are also inclined outwards from front to back along the left-right direction, so that the front bracket 1 is roughly a triangular frame, and the front wheel assembly 10 is provided with a group of front wheel assemblies and is arranged at the bottom of the mounting seat 12.

The rear bracket 2 has two rear support rods 21 which are respectively arranged at the left side and the right side and are inclined upwards from the back to the front, and a cross rod 22 which is fixedly arranged between the two rear support rods 21 and extends along the left and right directions, and a group of rear wheel assemblies 20 are arranged on each rear support rod 21. Each side of the rear support rod 21 is provided with a slide rod 3, the slide rod 3 comprises a rod body 3a which is arranged in the rod cavity of the rear support rod 21 in a relatively sliding manner along the length extending direction of the rear support rod 21, and two connectors 3b which extend out of the rod cavity of the rear support rod 21, and the two connectors 3b are positioned at the same side of the rear support rod 21 and are used for being in pivot connection with the bottom connecting frame 6 and the rear connecting frame 7. Specifically, the lower side portion of the rear support rod 21 has an opening groove (not shown in the figure) extending along the length extension direction of the rear support rod 21, the opening groove is communicated with the rod cavity of the rear support rod 21, the two connectors 3b are respectively and slidably inserted into the opening groove, the upper side portion of the rear support rod 21 has a connecting seat 2a, the rear wheel assembly 20 is rotatably connected to the connecting seat 2a around the rear wheel shaft 20a, and the sliding stroke of the slide rod 3 on the rear support rod 21 is not affected by the installation of the rear wheel assembly 20 or the cross rod 22, and can exceed the whole length of the rear support rod 21.

The handrail frame 4 is provided with two handrail rods 41 which are respectively arranged at the left side and the right side and extend along the up-down direction; the lower push rod frame 5 has two lower push rods 51 respectively arranged at the left and right sides and extending in the up-down direction; the upper push rod frame 9 is a U-shaped rod with a downward opening as a whole, and is provided with two upper push rods 91 which are respectively arranged at the left side and the right side and extend along the vertical direction; the bottom connecting frame 6 is provided with two bottom connecting rods 61 which are respectively arranged at the left side and the right side and extend along the front-back direction; the rear link 7 has two rear links 71 provided on the left and right sides and extending in the vertical direction.

On each of the left and right sides of the child stroller, the upper portion of the front support bar 11 and the lower portion of the grab bar 41 are respectively pivotally connected to the upper portion of the rear support bar 21, the upper portion of the grab bar 41 is pivotally connected to the upper push bar 91, the lower portion of the upper push bar 91 is pivotally connected to the upper portion of the lower push bar 51, and the lower portion of the lower push bar 51 is pivotally connected to the rear support bar 21; the slide bar 3 is arranged on the rear support rod 21 in a sliding way, the front part of the bottom connecting rod 61 is pivoted on the front support rod 11, and the rear part thereof is pivoted on a connecting head 3b on the slide bar 3 around a first rotation center line X1; the upper part of the rear link 71 is pivotally connected to the lower push rod 51, and the lower part thereof is pivotally connected to the other connecting head 3b of the slide bar 3 around a second rotation center line X2, wherein the first rotation center line X1 is located above the second rotation center line X2 along the length extension direction of the slide bar 3.

The stroller further includes a seat frame 8 extending in the front-rear direction in the unfolded state, the seat frame 8 includes a front seat rod 81 and a rear seat rod 82 which are capable of sliding and extending in the front-rear direction, the front seat rod 81 and the rear seat rod 82 have two sets respectively disposed on the left and right sides, on each of the left and right sides of the stroller, a front portion of the front seat rod 81 is pivotally connected to the grab bar 41, a rear portion of the rear seat rod 82 is pivotally connected to the lower push rod 51, and here, a rear portion of the rear seat rod 82 and an upper portion of the rear link 71 are pivotally connected to the lower push rod 51 around the same rotation center line.

Referring to fig. 1 to 4, in the unfolded state of the stroller of this embodiment, the front wheel assembly 10 and the two sets of rear wheel assemblies 20 are supported on the ground together, the upper push rod frame 9 and the lower push rod frame 5 extend along substantially the same length direction, the slide rod 3 is located at an upper position of the rear support 2, the bottom link frame 6 is supported between the front support 1 and the rear support 2 in the front-rear direction, the rear link frame 7 is supported between the lower push rod frame 5 and the rear support 2 in the up-down direction, the front seat rod 81 and the rear seat rod 82 of the seat frame 8 are relatively shortened, the seat frame 8 and the handle frame 4, and the lower push rod frame 5 and the upper push rod frame 9 together form a seat area for seating a child, the front support 1 protrudes forward from an upper portion of the rear support 2, and a large space is formed at a front side of the seat area. The baby stroller has good stability and simple and attractive appearance. In this unfolded state, the rod body 3a of the slide rod 3 is entirely located in the rod cavity of the rear support rod 21, and the first rotation center line X1 and the second rotation center line X2 are both located above the axis of the rear wheel shaft 20 a.

When the stroller needs to be folded, as shown in fig. 5 to 7, the upper push rod frame 9 is folded forward toward the lower push rod frame 5 and the handle frame 4, the handle frame 4 and the lower push rod frame 5 are folded backward relative to the rear support 2, the rear connecting frame 7 drives the slide rod 3 to slide downward along the rear support 2, the front support 1 is driven to fold backward relative to the rear support 2 by the bottom connecting frame 6, so that the front support 1, the bottom connecting frame 6, the rear support 2, the rear connecting frame 7, the handle frame 4, the lower push rod frame 5 and the upper push rod frame 9 are folded forward and backward, and the front seat rod 81 and the rear seat rod 82 of the seat frame 8 slide relatively to extend and are folded between the handle frame 4 and the lower push rod frame 5.

As shown in fig. 8 to 10, the front wheel assembly 10 and the rear wheel assembly 20 are folded back and forth, the front wheel assembly 10 is located between the two sets of rear wheel assemblies 20 in the left-right direction, and the rods of the stroller are tightly folded together, so that the stroller is small in overall size and capable of standing on the ground. At this time, the sliding rod 3 is located at the lower part of the rear bracket 2, the sliding rod 3 is located at least partially below the rear wheel axle 20a, and the sliding rod 3 at least partially extends below the solid body of the rear bracket 2, the first rotation center line X1 and the second rotation center line X2 are both located below the axis line of the rear wheel axle 20a, and the second rotation center line X2 is located below the solid body of the rear support rod 21.

In the stroller, the stroke of the sliding rod 3 is no longer limited to the length range of the solid rod of the rear support rod 21, and is not limited by the installation position of the rear wheel assembly 20 on the rear support 2, so that under the condition that the installation position of the rear wheel assembly 20 on the rear support 2 is relatively high, the length of the rear support rod 21 does not need to be extended to extend the sliding stroke of the sliding rod 3, the length size of the rear support 2 does not need to be extended while the stroller is folded, the overall use performance of the stroller is ensured, and the structural size of the stroller is reduced as much as possible. The structure of the baby stroller is particularly suitable for the type of the treadmill with the front wheel assembly 10 and the rear wheel assembly 20 with larger wheel bodies, and the size of the treadmill after being unfolded and folded is greatly reduced.

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 those skilled in the art to understand the contents of the present invention and 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 in the protection scope of the present invention.

Claims (10)

1. The utility model provides a children's shallow, has expansion state and fold condition which characterized in that: the stroller comprises a front support, a rear support, a handrail frame, an upper push rod frame and a lower push rod frame which respectively extend along the up-down direction in an unfolded state, wherein the bottom of the front support is provided with a front wheel assembly, and the left side and the right side of the rear support are provided with rear wheel assemblies; the child stroller further comprises a bottom connecting frame, a rear connecting frame and a slide rod which can be relatively slidably arranged on the rear support along the length extension direction of the rear support, one end of the bottom connecting frame is pivotally connected to the front support, and the other end of the bottom connecting frame is pivotally connected to the slide rod; one end pivot of back link is in on the lower carriage, another tip pivot of back link is in on the slide bar, work as the children's shallow is in under fold condition, fore-stock, end link, after-poppet, handrail frame, lower carriage and last push rod frame draw in each other along the fore-and-aft direction, the slide bar is located the lower part of after-poppet, the front wheel subassembly draws in two sets of along left right direction between the rear wheel subassembly.

2. The stroller of claim 1, wherein: the rear wheel assembly is rotatably connected to the lower portion of the rear support around a rear wheel shaft extending in the left-right direction, and when the stroller is in a folded state, the sliding rod is at least partially located below the rear wheel shaft in the length extending direction of the rear support.

3. The stroller of claim 2, wherein: when the child stroller is in a unfolded state, the bottom connecting frame extends in the front-back direction, the rear connecting frame extends in the up-down direction, the rear part of the bottom connecting frame is connected to the slide rod around a first rotation center line pivot, the lower part of the rear connecting frame is connected to the slide rod around a second rotation center line pivot, the first rotation center line is located above the second rotation center line along the length extension direction of the slide rod, and when the child stroller is in the unfolded state, the first rotation center line and the second rotation center line are both located above the axis line of the rear wheel shaft; when the child stroller is in a folded state, the first rotating center line and the second rotating center line are both located below the axis line of the rear wheel shaft.

4. The stroller of claim 3, wherein: when the stroller is in a folded state, at least part of the sliding rod extends out of the lower portion of the rear support, and the second rotation center line is located below the rear support.

5. The stroller of claim 1, wherein: the stroller further comprises a seat frame extending in the front-back direction in the unfolded state, the seat frame comprises a front seat rod and a rear seat rod which can slide and stretch in the front-back direction relatively, the front part of the front seat rod is connected to the armrest frame through a pivot, and the rear part of the rear seat rod is connected to the lower push rod frame through a pivot.

6. The stroller of claim 5, wherein: the rear part of the rear seat rod and the upper part of the rear connecting frame are pivotally connected to the lower push rod frame around the same rotating center line.

7. Child stroller according to any of claims 1 to 6, characterized in that: the after-poppet has the branch and locates the left and right sides and all be two back branches that extend from the back tilt up forward, every side all be provided with on the back branch the slide bar, the slide bar is including following the length extending direction relative slip ground of back branch sets up the body of rod in the pole chamber of back branch, and stretches out two connectors outside the pole chamber of back branch, two the connector is located same one side of back branch, end link back link difference pivotal connection in on the connector.

8. The stroller of claim 7, wherein: the lower side part of the rear supporting rod is provided with an open slot extending along the length direction of the rear supporting rod, the open slot is communicated with the rod cavity of the rear supporting rod, and the connector is inserted in the open slot in a sliding manner; the upper side of the rear support rod is provided with a connecting seat, and the rear wheel assembly is rotationally connected to the connecting seat.

9. The stroller of claim 7, wherein: the front support is provided with two front support rods which are respectively arranged on the left side and the right side and are respectively obliquely extended upwards from front to back, and a mounting seat fixedly arranged between the lower parts of the front support rods, wherein the front wheel assembly is arranged at the bottom of the mounting seat, and each front support rod is gradually obliquely extended outwards from front to back along the left-right direction.

10. The stroller of claim 7, wherein: the fore-stock has the branch and locates the left and right sides and all be from two preceding branches that forward backward tilt up extended, the handrail frame has the branch and locates the left and right sides and all follow two bars that the upper and lower direction extends, the lower bar frame has the branch and locates the left and right sides and all follow two push down rods that the upper and lower direction extends, the upper bar frame has the branch and locates the left and right sides and all follow two push up rods that the upper and lower direction extends, end link has the branch and locates two end connecting rods of the left and right sides, back link has the branch and locates two back connecting rods of the left and right sides, on each side of the left and right sides of children's shallow, the upper portion of preceding branch the lower part of bar is pivoted separately and is in the upper portion of back branch, the upper portion of push down rod with the lower part pivoted joint of upper push rod, the upper portion pivoted joint of bar in on the upper bar, end connecting rod pivoted joint be in preceding branch with between the slide bar, back connecting rod pivoted joint be in the lower push down with between the slide bar.

Images