CN114212140B

CN114212140B - Children's barrow

Info

Publication number: CN114212140B
Application number: CN202111374808.2A
Authority: CN
Inventors: 王俊马
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-10-28
Anticipated expiration: 2041-11-19
Also published as: CN114212140A

Abstract

The invention discloses a stroller, which comprises a frame, a push rod frame and a seat frame, wherein the push rod frame extends along the vertical direction, the seat frame extends along the front-rear direction, a front wheel assembly and a rear wheel assembly are arranged at the bottom of the bottom frame, the lower part of the push rod frame is rotationally connected to the bottom frame, a sliding piece is rotationally connected to the seat frame, the sliding piece can be relatively slidably arranged on the push rod frame along the length extension direction of the push rod frame, the stroller also comprises a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod respectively extend along the vertical direction, the first connecting rod is rotationally connected between the front part of the seat frame and the bottom frame, and the second connecting rod is rotationally connected between the rear part of the seat frame and the bottom frame. The frame can be switched between the first using state and the second using state only by turning the push rod frame back and forth in the unfolding state, so that the baby stroller can be pushed forwards or backwards.

Description

Children's barrow

Technical Field

The invention relates to a child stroller, in particular to a child stroller with a reversible push rod.

Background

Among the prior art, in order to satisfy user's different needs, many children's shallow have children back to the head of a family forward use state and children face the head of a family's reverse use state, and in order to realize this function, the seat pocket of children's shallow can be dismantled with the frame and be connected a bit, and the seat pocket can be installed on the frame with the orientation of difference. However, the seat pocket needs to be configured independently, the seat pocket needs to be disassembled and then installed when the seat pocket is used in a reversing mode, and the folded seat pocket is large in occupied space and inconvenient to use.

Chinese patent CN212637612U provides a stroller, wherein the stroller has a forward use state and a reverse use state by turning a push rod frame forward and backward, however, when the push rod is in the forward use state or the reverse use state, the position of the seat frame is always kept unchanged, the center of gravity of the stroller frame is changed after the reversing operation, which easily causes the unstable center of gravity of the stroller frame in one of the forward or reverse use states, and affects the overall use performance.

Disclosure of Invention

It is an object of the present invention to provide a new stroller to solve one or more problems of the prior art.

In order to achieve the purpose, the invention adopts the technical scheme that: a stroller comprises a frame in a unfolded state, a front wheel assembly and a rear wheel assembly, wherein the front wheel assembly and the rear wheel assembly are arranged at the bottom of the frame, the frame comprises a bottom bracket, a push rod frame extending along the vertical direction and a seat frame extending along the front-rear direction, the front wheel assembly and the rear wheel assembly are arranged at the bottom of the bottom bracket, the lower part of the push rod frame is rotationally connected to the bottom bracket around a first rotation center line, a sliding part is rotationally connected to the seat frame and can be relatively slidably arranged on the push rod frame along the length extending direction of the push rod frame, the frame further comprises a first connecting rod and a second connecting rod which respectively extend along the vertical direction, the first connecting rod is rotationally connected between the front part of the seat frame and the bottom bracket, the second connecting rod is rotationally connected between the rear part of the seat frame and the bottom bracket, the frame has a first use state and a second use state, and when the frame is in the first use state, the push rod frame extends obliquely upwards from front to back, and when the frame is in the second use state, the push rod frame extends obliquely forwards and backwards.

Preferably, the sliding member is rotatably connected to the seat frame about a second rotation center line, the lower end of the first connecting rod and the lower end of the second connecting rod are respectively rotatably connected to the bottom bracket, the upper end of the first connecting rod is rotatably connected to the seat frame about a third rotation center line, the upper end of the second connecting rod is rotatably connected to the seat frame about a fourth rotation center line, and the third rotation center line, the second rotation center line and the fourth rotation center line are parallel to each other and sequentially arranged along the length direction of the seat frame.

Further preferably, the bottom bracket includes a front bracket and a rear bracket, the front wheel assembly is disposed at the bottom of the front bracket, the rear wheel assembly is disposed at the bottom of the rear bracket, two of an upper portion of the front bracket, an upper portion of the rear bracket, and a lower portion of the push rod frame are rotatably connected and a third one is rotatably connected to one of the two, or the upper portion of the front bracket, the upper portion of the rear bracket, and the lower portion of the push rod frame are rotatably connected together around the first rotation center line, a lower end portion of the first link is rotatably connected to the front bracket, and a lower end portion of the second link is rotatably connected to the rear bracket.

Preferably, when the frame is in the first use state, the first connecting rod and the second connecting rod are inclined and extend upwards from front to back; when the frame is in the second use state, the first connecting rod and the second connecting rod are inclined upwards and extend from back to front.

Preferably, in the process of converting the frame from the first use state to the second use state, the seat frame moves forward from the first position to the second position in the front-rear direction.

Preferably, the seat frame is provided with a sitting and standing supporting surface extending backwards and downwards in a downward inclination manner, an included angle α is formed between the sitting and standing supporting surface and a horizontal plane, and the included angle α is increased in the process of converting the frame from the first use state to the second use state.

Further preferably, when the frame is in the unfolded state, the sitting and standing support surface is always located above the first rotation center line in the vertical direction.

Preferably, the push rod frame has the branch and locates the left and right sides and respectively along two sets of push rods that the upper and lower direction extends, the seat frame sets up along the left and right sides between two sets of the push rod, the slider is including connecting with rotating respectively two sets of sliding sleeves of the seat frame left and right sides, and two sets of sliding sleeve overlaps respectively sliding fit ground and establishes on the push rod that corresponds the side.

Preferably, the bottom bracket is foldable, the frame is also folded, and when the frame is in the folded state, the bottom bracket is folded and the seat frame and the push rod are folded in the front of the bottom bracket.

Further preferably, the bottom bracket includes a front bracket and a rear bracket, the front wheel assembly is disposed at the bottom of the front bracket, the rear wheel assembly is disposed at the bottom of the rear bracket, the upper portion of the front bracket, the upper portion of the rear bracket and the lower portion of the push rod frame are rotatably connected together around the first rotation center line, the first connecting rod is rotatably connected between the front bracket and the seat frame, the second connecting rod is rotatably connected between the rear bracket and the seat frame, when the frame is in a folded state, the push rod frame, the front bracket and the rear bracket are folded in a front-back direction, and the seat frame is folded between the push rod frame and the front bracket.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: according to the child stroller disclosed by the invention, the frame can be switched between the first use state and the second use state only by turning the push rod frame forwards and backwards in the unfolding state, so that the child stroller can be pushed forwards or backwards. In the process of switching the use state of the frame by turning over the push rod frame, the seat frame is linked to switch the position along the front-back direction, so that the overall gravity center of the frame is basically kept unchanged in the first use state and the second use state, and the good stability can be kept.

Drawings

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

FIG. 2 is a side schematic view of the vehicle frame of FIG. 1;

FIG. 3 is a side elevational view of the carriage of FIG. 2 as it transitions to a second condition of use;

FIG. 4 is a side elevational schematic view of the carriage of FIG. 1 during transition between the first and second use conditions;

FIG. 5 is a side view of the frame of FIG. 1 in a folded configuration.

Detailed Description

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

The following references are made to the directions of the upper, lower, left, right, front and rear portions of the stroller as viewed when the stroller is in the deployed position with the child seated on the stroller.

Referring to fig. 1 to 5, the stroller includes a frame in an unfolded state, and a front wheel assembly 20 and a rear wheel assembly 30 disposed at the bottom of the frame, wherein in the unfolded state, the frame includes a bottom bracket, a push rod frame 1 extending in an up-down direction, and a seat frame 4 extending in a front-back direction, and the front wheel assembly 20 and the rear wheel assembly 30 are disposed at the bottom of the bottom bracket. The lower part of the push rod frame 4 is rotatably connected to the bottom bracket about a first rotation center line a extending in the left-right direction. A slider is rotatably connected to the seat frame 4, and the slider is provided on the push rod frame 1 so as to be relatively slidable in the longitudinal extension direction of the push rod frame 1.

The frame further comprises a first connecting rod 6 and a second connecting rod 7 which respectively extend along the up-down direction, the first connecting rod 6 is rotatably connected between the front part of the seat frame 4 and the bottom bracket, and the second connecting rod 7 is rotatably connected between the rear part of the seat frame 4 and the bottom bracket. The frame has a first use state and a second use state, when the frame is in the first use state, as shown in fig. 1 and 2, the push rod frame 1 extends obliquely upwards from front to back; when the frame is in the second using state, as shown in fig. 3, the push rod frame 1 extends obliquely upwards from back to front, as shown in fig. 4, the frame is switched between the first using state and the second using state in the process that the push rod frame 1 rotates around the first rotation center line a.

Referring to the drawings, a bottom chassis including a front chassis 2 and a rear chassis 3 each extending obliquely in an up-down direction in an unfolded state of the vehicle frame, a front wheel assembly 20 provided at a bottom of the front chassis 2, a rear wheel assembly 30 provided at a bottom of the rear chassis 3, two of an upper portion of the front chassis 2, an upper portion of the rear chassis 3, and a lower portion of the push rod chassis 1 rotatably connected and a third rotatably connected to one of the two, or, as in the present embodiment, an upper portion of the front chassis 2, an upper portion of the rear chassis 3, and a lower portion of the push rod chassis 1 rotatably connected together around a first rotation center line a, is provided to be foldable. The lower end of the first link 6 is pivotally connected to the front bracket 2 and the upper end of the first link 6 is pivotally connected to the front portion of the seat frame 4, and the lower end of the second link 7 is pivotally connected to the rear bracket 3 and the upper end of the second link 7 is pivotally connected to the rear portion of the seat frame 4.

Specifically, the push rod frame 1 has two groups of push rods 11 respectively arranged on the left and right sides and respectively extending in the up-down direction, the push rods 11 on each side respectively include a lower push rod 1a and an upper push rod 1B which are rotatably connected and can be folded in the up-down direction, the seat frame 4 is arranged between the two groups of push rods 11 in the left-right direction, the sliding part includes two groups of sliding sleeves 5 respectively rotatably connected on the left and right sides of the seat frame 4 around a second rotation center line B, and the two groups of sliding sleeves 5 are respectively sleeved on the lower push rods 1a on the corresponding sides in a sliding fit manner.

The front bracket 2 is provided with two groups of front supporting rods 21 which are respectively arranged at the left side and the right side and are obliquely extended upwards from front to back, and a front cross rod 22 fixedly arranged between the lower parts of the two groups of front supporting rods 21, and the lower part of each group of front supporting rods 21 is provided with a group of front wheel assemblies 20; the rear bracket 3 is provided with two groups of rear supporting rods 31 which are respectively arranged at the left side and the right side and are inclined upwards from the back to the front, and a rear cross rod 32 fixedly arranged between the lower parts of the two groups of rear supporting rods 31, and the lower part of each group of rear supporting rods 31 is provided with a group of rear wheel assemblies 30. On each of the left and right sides of the vehicle body frame, the upper portion of the front stay 21, the upper portion of the rear stay 31, and the lower portion of the push-down lever 1a are rotatably connected together about the first rotation center axis a.

A group of first connecting rods 6 and a group of second connecting rods 7 are arranged on each of the left side and the right side of the frame, the upper end parts of the first connecting rods 6 are rotatably connected to the seat frame 4 around a third rotation center line C, and the lower end parts of the first connecting rods 6 are rotatably connected to the front supporting rods 21 on the same side around a fifth rotation center line E; the upper end of the second link 7 is rotatably connected to the seat frame 4 about a fourth rotation center line D, and the lower end of the second link 7 is rotatably connected to the rear stay 31 on the same side about a sixth rotation center line F. The third rotation center line C, the second rotation center line B, and the fourth rotation center line D are sequentially arranged from front to back along the front-rear direction of the seat frame 4.

The stroller further comprises a locking mechanism for locking the stroller frame in the unfolded state and in the first use state or the second use state, the locking mechanism comprises a bottom bracket locking mechanism (not shown in the figure) arranged between the front bracket 2 and the rear bracket 3 for locking the front bracket and the rear bracket so that the bottom bracket is stably opened, and a reversing locking mechanism arranged between the push rod frame 1 and the bottom bracket for relatively locking the bottom bracket and the bottom bracket, and when the bottom bracket locking mechanism is kept in the locked state, the unlocking reversing locking mechanism can drive the push rod frame 1 to turn back and forth so as to realize the rapid switching of the stroller frame between the first use state and the second use state.

Referring to fig. 1 and 2, the stroller frame is in a deployed state, the stroller frame is in a first use state, the push rod frame 1 extends obliquely upward from front to back, the seat frame 4 is located at a first position in the front-back direction, the first link 6 and the second link 7 both extend obliquely upward from front to back, the seat frame 4 has a sitting support surface 4a extending obliquely downward and backward, and the sitting support surface 4a is located above the first rotation center line a in the vertical direction. An included angle alpha is formed between the sitting and standing supporting surface 4a and the horizontal plane, and the included angle alpha has an acute angle value smaller than 45 degrees.

Referring to fig. 4, when the vehicle frame needs to be converted into the second use state, the push rod frame 1 is turned forward, the rotating seat frame 4 of the push rod frame 1 moves forward, and simultaneously, the first connecting rod 6 and the second connecting rod 7 respectively swing forward. Referring to fig. 3, the push rod frame 1 is turned forward to the front of the vehicle frame, the push rod frame 1 is inclined upward from the rear to the front, and the vehicle frame is converted into a second use state. When the frame is in the second using state, the seat frame 4 is located at a second position in the front-rear direction, and the second position is located in front of the first position; the first connecting rod 6 and the second connecting rod 7 are both in a state of inclining and extending upwards from back to front, and an included angle alpha formed between the sitting and standing supporting surface 4a and the horizontal plane is increased. When the frame is in the first use state and the second use state, the whole gravity center of the frame basically keeps unchanged in the front-rear direction, so that the frame has good stability in two different use states.

Referring to fig. 5, when the frame needs to be folded, the front frame 2 and the rear frame 3 are folded back and forth, the upper push rod 1b and the lower push rod 1a of the push rod frame 4 are folded back relatively and folded at the front side of the front frame 2, the two sets of rear wheel assemblies 30 are folded back between the two sets of front wheel assemblies 20 in the left-right direction, and the first connecting rod 6 and the second connecting rod 7 are turned over forward, so that the seat frame 4 is folded back between the push rod frame 1 and the front frame 2 in a forward-turning manner. The folded frame structure is very flat and compact, and the occupied space is small.

The above-mentioned embodiments are merely illustrative of the technical idea and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.

Claims

1. The utility model provides a children's shallow, includes the frame that has the expansion state, locates the front wheel subassembly and the rear wheel subassembly of frame bottom, its characterized in that: in a unfolded state, the frame comprises a bottom bracket, a push rod frame extending along the vertical direction, and a seat frame extending along the front-back direction, the front wheel assembly and the rear wheel assembly are arranged at the bottom of the bottom bracket, the lower part of the push rod frame is rotationally connected to the bottom bracket around a first rotation center line, a sliding piece is rotationally connected to the seat frame, the sliding piece can be relatively slidably arranged on the push rod frame along the length extension direction of the push rod frame, the frame further comprises a first connecting rod and a second connecting rod which respectively extend along the vertical direction, the first connecting rod is rotationally connected between the front part of the seat frame and the bottom bracket, the second connecting rod is rotationally connected between the rear part of the seat frame and the bottom bracket, the frame has a first use state and a second use state, when the frame is in the first use state, the push rod frame obliquely extends upwards from front to back, and the first connecting rod and the second connecting rod both obliquely extend upwards from front to back; when the frame is in the second use state, the push rod frame extends obliquely upwards from back to front, and the first connecting rod and the second connecting rod extend obliquely upwards from back to front.

2. The stroller of claim 1, wherein: the sliding part is connected with the seat frame in a rotating mode around a second rotating center line, the lower end portion of the first connecting rod and the lower end portion of the second connecting rod are connected to the bottom support in a rotating mode respectively, the upper end portion of the first connecting rod is connected to the seat frame in a rotating mode around a third rotating center line, the upper end portion of the second connecting rod is connected to the seat frame in a rotating mode around a fourth rotating center line, and the third rotating center line, the second rotating center line and the fourth rotating center line are parallel to each other and are arranged in sequence along the length direction of the seat frame.

3. The stroller of claim 2, wherein: the bottom bracket comprises a front bracket and a rear bracket, the front wheel assembly is arranged at the bottom of the front bracket, the rear wheel assembly is arranged at the bottom of the rear bracket, two of the upper part of the front bracket, the upper part of the rear bracket and the lower part of the push rod frame are rotationally connected, and the third one is rotationally connected with one of the two, or the upper part of the front bracket, the upper part of the rear bracket and the lower part of the push rod frame are rotationally connected together around the first rotation center line, the lower end part of the first connecting rod is rotationally connected to the front bracket, and the lower end part of the second connecting rod is rotationally connected to the rear bracket.

4. The stroller of claim 1, wherein: in the process that the frame is converted from the first use state to the second use state, the seat frame moves forwards from the first position to the second position in the front-rear direction.

5. The stroller of claim 1, wherein: the seat frame is provided with a sitting and standing supporting surface which extends backwards and downwards in a downward inclining mode, an included angle alpha is formed between the sitting and standing supporting surface and the horizontal plane, and the included angle alpha is increased in the process that the frame is converted from the first using state to the second using state.

6. The stroller of claim 5, wherein: when the frame is in an unfolded state, the sitting and standing supporting surface is always positioned above the first rotating center line along the vertical direction.

7. The stroller of claim 1, wherein: the push rod frame has and locates the left and right sides and respectively along two sets of push rods that the upper and lower direction extends, the seat frame sets up along the left and right sides between two sets of the push rod, the slider is including connecting with rotating respectively two sets of sliding sleeves of the seat frame left and right sides, two sets of sliding sleeve overlaps with sliding fit ground respectively and establishes on the push rod that corresponds the side.

8. The stroller of claim 1, wherein: the bottom support is arranged in a foldable mode, the frame is further provided with a folded state, and when the frame is in the folded state, the bottom support is folded, and the seat frame and the push rod are folded in the front portion of the bottom support.

9. The stroller of claim 8, wherein: the bottom bracket comprises a front bracket and a rear bracket, the front wheel assembly is arranged at the bottom of the front bracket, the rear wheel assembly is arranged at the bottom of the rear bracket, the upper part of the front bracket, the upper part of the rear bracket and the lower part of the push rod frame are jointly rotationally connected around the first rotation center line, the first connecting rod is rotationally connected between the front bracket and the seat frames, the second connecting rod is rotationally connected between the rear bracket and the seat frames, when the frame is in a folded state, the push rod frame, the front bracket and the rear bracket are folded in the front-back direction, and the seat frames are folded between the push rod frames and the front bracket.