CN219056347U

CN219056347U - Child cart

Info

Publication number: CN219056347U
Application number: CN202223105433.2U
Authority: CN
Inventors: 高翔; 周志华; 李照国
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-05-23
Anticipated expiration: 2032-11-22

Abstract

The utility model relates to a child stroller, which comprises a push rod, a chassis, a wheel assembly, a first support, a second support, a first swing rod, a second swing rod and a connecting piece, wherein the wheel assembly, the first support, the second support, the first swing rod, the second swing rod and the connecting piece are arranged on the chassis; the first swing rod and the second swing rod are also in sliding and rotating connection with the underframe through a rotating shaft; the wheel assembly is provided with a chute, and the rotating shaft is inserted into the chute and slides in the chute. When the baby stroller is folded, the push rod rotates towards the underframe to be close, the rotating shaft is driven to slide in the sliding groove, the driving wheel assembly rotates around the rotating center line, the wheel assembly and the underframe are close, the first support frame and the second support frame are driven to be close, the baby stroller is flat after being folded, and the baby stroller is small in size and convenient to transport and store.

Description

Child cart

Technical Field

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

Background

Folding child strollers are widely used as a baby walker. Foldable child strollers typically include a foldable stroller frame, a wheel assembly disposed at the bottom of the stroller frame, and a locking mechanism for locking the stroller frame in an unfolded state. However, the existing stroller is usually folded by the stroller frame, but the wheel assembly cannot be folded along with the stroller frame, so that the folded stroller is still large in size and inconvenient to transport and store.

Disclosure of Invention

The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing a child stroller with different structures and small volume after folding.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a child stroller having a collapsed state and an expanded state, the child stroller comprising a push rod, a chassis, and a wheel assembly disposed on the chassis, the wheel assembly being rotatably connected to the chassis about a rotation center line extending in a front-to-rear direction, a lower portion of the push rod being pivotally connected to the chassis;

the child stroller further comprises a first support frame, a second support frame, a first swing rod, a second swing rod and a connecting piece, wherein the lower end of the first support frame is rotatably connected with the underframe, and the lower end of the second support frame is rotatably connected with the underframe;

the upper end part of the first support frame and the upper end part of the second support frame are respectively and rotatably connected with the connecting piece;

one end part of the first swing rod is in pivot connection with the lower part of the push rod, and one end part of the second swing rod is in pivot connection with one of the first support and the second support;

the other end part of the first swing rod and the other end part of the second swing rod are connected with the underframe in a sliding and rotating way through a rotating shaft;

the wheel assembly is provided with a chute, and the rotating shaft is inserted into the chute and slides in the chute;

when the child cart is converted from an unfolding state to a folding state, the push rod rotates towards the underframe to be close, the rotating shaft is driven to slide in the sliding groove, the wheel assembly is driven to rotate around the rotation center line to enable the wheel assembly to be close to the underframe, and meanwhile the first support frame and the second support frame are driven to rotate towards the underframe to be close to each other.

According to some embodiments of the utility model, the wheel assembly includes a link extending in a front-rear direction of the stroller, a front wheel provided at a front end of the link, and a rear wheel provided at a rear end of the link, the link is rotatably provided on the chassis around the rotation center line, the chute is opened on the link, and the chute extends around a circumference of the link and in a length direction of the link.

Further, the chassis includes the edge the sill bar that the fore-and-aft direction of children's shallow extends, the sill bar has the cavity inner chamber, the connecting rod is around the rotation central line rotates and passes the inside setting of sill bar, set up the guide way along its length direction on the sill bar, the pivot still passes the guide way just slide in the guide way.

In some embodiments, the stroller comprises wheel assemblies positioned at the left side and the right side of the stroller, push rods positioned at the left side and the right side of the stroller, first swing rods positioned at the left side and the right side of the stroller, and second swing rods positioned at the left side and the right side of the stroller, the underframe comprises bottom rods positioned at the left side and the right side of the stroller, the connecting rods of the wheel assemblies at each side are rotationally arranged on the bottom rods at the corresponding sides, the first swing rods and the second swing rods at each side are slidingly and rotationally connected with the bottom rods at the corresponding sides through the rotating shafts, the push rods at each side are respectively rotationally connected with the bottom rods at the corresponding sides and the first swing rods at the corresponding sides, and the second swing rods at both sides are respectively rotationally connected with the first support frame or the second support frame.

In some embodiments, the chassis further comprises a plurality of chassis cross bars with two ends respectively connected to the bottom bars at two sides.

According to some embodiments of the utility model, when the child stroller is in the unfolded state, the rotational connection of the first swing link and the push rod is located below the rotational connection of the chassis and the push rod; and/or when the child stroller is in the unfolded state, the second swing rod is rotatably connected to the middle part of the first support frame or the middle part of the second support frame.

According to some embodiments of the utility model, when the child stroller is in the unfolded state, the rotational connection of the first support and the chassis is located in front of the rotational connection of the second support and the chassis, the rotational connection of the first support and the connecting member is located in front of the rotational connection of the second support and the connecting member, and the second swing link is rotationally connected with the first support.

Further, the first strut is including setting up respectively children's shallow left and right sides and along the first side lever of upper and lower direction extension and set up in both sides first strut horizontal pole between the upper end of first side lever, both sides the lower tip of first side lever respectively with the chassis rotates to be connected, first strut horizontal pole with the connecting piece rotates to be connected.

Further, the second support comprises second side rods which are respectively arranged at the left side and the right side of the child stroller and extend along the up-down direction, and second support cross rods which are arranged between the upper end parts of the second side rods at the two sides, the lower end parts of the second side rods at the two sides are respectively connected with the underframe in a rotating way, and the second support cross rods are connected with the connecting piece in a rotating way; or, the second support frame is a support rod extending along the up-down direction of the child stroller, the upper end part of the support rod is rotationally connected with the connecting piece, and the lower end part of the support rod is rotationally connected with the underframe.

According to some embodiments of the utility model, the stroller further comprises a seat removably attached to the connector.

According to some embodiments of the present utility model, when the stroller is converted from the unfolded state to the folded state, the push rod is operated to turn forward to close to the chassis, so as to drive the rotating shaft to slide backward in the sliding groove, further drive the first support frame and the second support frame to turn backward to close to the chassis, and drive the wheel assembly to rotate around the rotation center line to close to the chassis.

According to some embodiments of the utility model, when the stroller is in the deployed state, a lower surface of a wheel of the wheel assembly is grounded; when the stroller is in a collapsed condition, the lower surfaces of the wheels of the wheel assembly are disengaged from the ground.

In the utility model, the lower surface of the wheel refers to the surface of the wheel facing the ground in the running process of the child stroller.

According to some embodiments of the utility model, when the stroller is in a folded state, the push rod, the first bracket, the second bracket, and the wheel assembly are all close to the chassis, and the stroller is flat.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

when the child cart is converted from the unfolded state to the folded state, the push rod rotates towards the underframe to be close, the rotating shaft is driven to slide in the sliding groove, the driving wheel assembly rotates around the rotating center line, so that the wheel assembly and the underframe are close, the first support frame and the second support frame are driven to rotate towards the underframe to be close, and the child cart is flat after being folded, has small volume and is convenient to transport and store.

Drawings

FIG. 1 is a perspective view of the stroller of example 1 in an unfolded state (without a seat attached);

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

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is a perspective view of the child stroller of FIG. 1 in a semi-collapsed condition (without a seat attached);

FIG. 5 is a side view of FIG. 4;

FIG. 6 is a perspective view of the child stroller of FIG. 1 in a collapsed condition (without a seat attached);

FIG. 7 is a side view of FIG. 6;

FIG. 8 is a schematic structural view of the undercarriage of the stroller of FIG. 1;

FIG. 9 is a schematic structural view of a wheel assembly of the stroller of FIG. 1;

FIG. 10 is a perspective view of the stroller of example 1 in an unfolded state (seat-to-seat installation);

FIG. 11 is a perspective view of the stroller of FIG. 10 in an unfolded condition with the seat being folded;

FIG. 12 is a side view of FIG. 11;

FIG. 13 is a perspective view of the stroller of FIG. 10 in a folded condition;

FIG. 14 is a side view of FIG. 13;

FIG. 15 is a perspective view of the stroller of example 1 in an unfolded state (with the seat back installed);

FIG. 16 is a perspective view of the stroller of example 2 in an unfolded state;

in the figure: 1. a push rod; 1a, pushing down the rod; 1b, pushing up the rod; 2. a chassis; 2a, a bottom rod; 2b, a chassis cross bar; 3. a wheel assembly; 3a, a connecting rod; 3b, front wheels; 3c, rear wheels; 4. a guide groove; 5. a chute; 6. a first bracket; 6a, a first side rod; 6b, a first bracket cross bar; 7. a second bracket; 7a, a second side rod; 7b, a second bracket cross bar; 8. a first swing rod; 9. the second swing rod; 10. a rotating shaft; 11. a connecting piece; 12. a seat is arranged; 12a, a seat plate; 12b, a backrest bar; 12c, a grab rail; 12d, foot rest lever.

Detailed Description

The utility model is further described with reference to the drawings and specific examples in the specification:

example 1

Referring to fig. 1-15, the stroller has an unfolded state and a folded state.

Referring to fig. 1 to 9, the stroller includes push rods 1, a chassis 2, and wheel assemblies 3, which are disposed on the left and right sides of the stroller and are disposed on the chassis 2, the wheel assemblies 3 on each side are rotatably connected to the chassis 2 about rotation center lines extending in the front-rear direction, respectively, and lower portions of the push rods 1 on each side are pivotally connected to the chassis 2, respectively.

The baby stroller further comprises a first support frame 6, a second support frame 7, first swing rods 8, second swing rods 9 and connecting pieces 11, wherein the lower end portion of the first support frame 6 is rotatably connected with the underframe 2, the lower end portion of the second support frame 7 is rotatably connected with the underframe 2, the first swing rods 8 are positioned on the left side and the right side of the baby stroller, the second swing rods 9 are positioned on the left side and the right side of the baby stroller, the upper end portion of the first support frame 6 and the upper end portion of the second support frame 7 are respectively rotatably connected with the connecting pieces 11, one end portion of each side of the first swing rods 8 is rotatably connected with the lower portion of the push rod 1 on the corresponding side, one end portion of each side of the second swing rods 9 is rotatably connected with the middle portion of the first support frame 6 on the corresponding side, and the other end portion of each side of the first swing rods 8 and the other end portion of the second swing rods 9 are slidably and rotatably connected with the underframe 2 through rotating shafts 10.

Each side wheel assembly 3 is provided with a chute 5, each side rotating shaft 10 is inserted into the corresponding side chute 5 and slides in the chute 5, when the stroller is converted from the unfolded state to the folded state, the push rod 1 on each side rotates towards the underframe 2 to be close, the rotating shafts 10 on each side are driven to slide backwards in the chute 5, the wheel assemblies 3 on each side are driven to rotate around the respective rotation center lines, and meanwhile the first support frame 6 and the second support frame 7 are driven to rotate towards the underframe 2 to be close.

In this example, as shown in fig. 3, each side push rod 1 includes a lower push rod 1a whose lower portion is rotatably connected to the chassis 2, and an upper push rod 1b slidably connected to the lower push rod 1a along the length direction of the lower push rod 1a, and the first swing rod 8 is rotatably connected to the lower push rod 1 a.

In this example, as shown in fig. 1 and 8, the chassis 2 includes a bottom bar 2a located on both sides of the stroller and extending in the front-rear direction of the stroller, and a plurality of chassis cross bars 2b each having both ends connected to the bottom bars 2a, specifically, chassis cross bars 2b are provided between the front ends of the bottom bars 2a on both sides and between the rear ends of the bottom bars 2a on both sides, respectively, and the bottom bars 2a are rotatably connected to the push down bars 1 a.

Referring to fig. 8, the bottom rods 2a on each side are provided with guide grooves 4 along the length direction thereof, and the rotating shaft 10 also passes through the guide grooves 4 and slides in the guide grooves 4, and the bottom rods 2a on each side have hollow inner cavities.

Referring to fig. 9, each side wheel assembly 3 includes a link 3a extending in the front-rear direction of the stroller, a front wheel 3b provided at a front end portion of the link 3a, and a rear wheel 3c provided at a rear end portion of the link 3a, each side link 3a is provided through the inside of the bottom bar 2a around a respective rotation center line, a chute 5 is provided on each side link 3a and each side chute 5 extends around the circumference of the link 3a and along the length direction of the link 3a, and when the rotation shaft 10 slides in the chute 5 and slides from one end portion of the chute 5 to the other end portion of the chute 5, the rotation angle of the wheel assembly 3 around the rotation center line is about 90 °.

In this example, as shown in fig. 1, the rotational connection between the first bracket 6 and the chassis 2 is located in front of the rotational connection between the second bracket 7 and the chassis 2, and the rotational connection between the first bracket 6 and the connecting member 11 is located in front of the rotational connection between the second bracket 7 and the connecting member 11.

Specifically, the first bracket 6 includes first side bars 6a provided on both sides of the stroller and extending obliquely in the up-down direction, and first bracket cross bars 6b provided between upper ends of the first side bars 6a on both sides, lower ends of the first side bars 6a on both sides are respectively rotatably connected with the bottom frame cross bars 2b connected to front ends of the bottom bars 2a, middle portions of the first bracket cross bars 6b are rotatably connected with the connecting members 11, and the second swing bars 9 on each side are pivotally connected with middle portions of the first side bars 6a on the corresponding sides. The second support frame 7 comprises second side rods 7a which are respectively arranged at the left side and the right side of the baby carriage and extend obliquely along the up-down direction, and second support frame cross rods 7b which are arranged between the upper end parts of the second side rods 7a at the two sides, wherein the lower end parts of the second side rods 7a at the two sides are respectively connected with the bottom rods 2a at the two sides in a rotating way, and the middle part of the second support frame cross rods 7b is connected with the connecting piece 11 in a rotating way.

When the stroller is in the unfolded state, as shown in fig. 1 to 3, the rotational connection between the first swing rod 8 and the push down rod 1a on each side is located below the rotational connection between the bottom rod 2a and the push down rod 1a, and the rotating shaft 10 is located at the front end of the guide slot 4 and the front end of the slide slot 5. When the stroller is folded, as shown in fig. 4-5, the push rod 1 turns forward to drive the first swing rod 8 to move backward, the driving wheel assembly 3 rotates around the rotating center line to be close to the chassis 2 by pulling the rotating shaft 10 to slide backward in the guide groove 4 and the sliding groove 5, the second swing rod 9 moves backward in the rotating shaft 10 sliding process, the first support frame 6 is pulled to turn backward to be close to the chassis 2, the second support frame 7 also turns backward to be close to the chassis 2, and finally the stroller is folded, as shown in fig. 6-7, the first support frame 6, the second support frame 7, the push rod 1 and the wheel assembly 3 are close to the chassis 2 after folding, the lower surfaces of the wheels of the wheel assembly 3 (namely the lower surface of the front wheel 3b and the lower surface of the rear wheel 3 c) are separated from the ground, and the whole stroller is flat and has small volume.

As shown in fig. 10 to 15, the stroller further comprises a seat 12 detachably connected to the connecting piece 11, wherein the seat 12 can be installed in a forward direction as shown in fig. 10 or in a reverse direction as shown in fig. 15. The seat 12 is also foldable, in this example, as shown in fig. 10 and 15, the seat 12 includes a seat plate 12a detachably connected to the connector 11, a backrest rod 12b with a lower end portion rotatably connected to one side portion of the seat plate 12a, a grab rod 12c with a lower end portion rotatably connected to a side portion of the seat plate 12a, and a foot rest rod 12d with an upper end portion rotatably connected to the other side portion of the seat plate 12a, and when the seat 12 is folded, the backrest rod 12b, grab rod 12c, and foot rest rod 12d are all closed to the seat plate 12 a.

As shown in fig. 11 to 12, the seat stump 12 can be directly folded on the connecting piece 11, after the seat stump 12 is folded, the push rod 1, the first support frame 6, the second support frame 7, the underframe 2 and the wheel assembly 3 are folded, and after the seat stump 12, as shown in fig. 13 to 14, the push rod 1, the underframe 2, the first support frame 6, the second support frame 7 and the wheel assembly are mutually closed, and after the whole stroller is folded, the whole stroller is flat, small in size and convenient to carry and store.

Example 2

As shown in fig. 16, the basic structure of the stroller provided in this embodiment is the same as that of embodiment 1, and the difference between this embodiment 1 is that: the second bracket 7 is a stay extending obliquely in the up-down direction of the stroller, the lower end of which is also rotatably connected to the chassis cross bar 2b connected to the front end of the bottom bar 2a, and the upper end of which is rotatably connected to the connecting member 11.

The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the present utility model and to implement the same, but are not intended to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.

Claims

1. A stroller having a collapsed state and an expanded state, the stroller comprising a push rod, a chassis, and a wheel assembly disposed on the chassis, wherein: the wheel assembly is rotationally connected with the underframe around a rotation center line extending along the front-back direction, and the lower part of the push rod is pivotally connected with the underframe;

2. The stroller of claim 1, wherein: the wheel assembly comprises a connecting rod extending along the front-back direction of the stroller, a front wheel arranged at the front end part of the connecting rod and a rear wheel arranged at the rear end part of the connecting rod, the connecting rod is rotatably arranged on the underframe around the rotation center line, the sliding groove is formed in the connecting rod, and the sliding groove extends around the circumference of the connecting rod and along the length direction of the connecting rod.

3. The stroller of claim 2, wherein: the chassis includes the edge the sill bar that the fore-and-aft direction of children's shallow extends, the sill bar has the cavity inner chamber, the connecting rod is around the rotation central line rotates and passes the inside setting of sill bar, set up the guide way along its length direction on the sill bar, the pivot still passes the guide way just slide in the guide way.

4. A stroller according to claim 3, wherein: the child stroller comprises wheel assemblies located on the left side and the right side of the child stroller, push rods located on the left side and the right side of the child stroller, first swing rods located on the left side and the right side of the child stroller and second swing rods located on the left side and the right side of the child stroller, the underframe comprises bottom rods located on the left side and the right side of the child stroller, connecting rods of the wheel assemblies are rotatably arranged on the bottom rods on the corresponding sides, the first swing rods and the second swing rods on the sides are slidably and rotatably connected with the bottom rods on the corresponding sides through rotating shafts, the push rods on the sides are rotatably connected with the bottom rods on the corresponding sides and the first swing rods on the corresponding sides, and the second swing rods on the two sides are rotatably connected with the first support frames or the second support frames respectively.

5. The stroller of claim 4, wherein: the underframe also comprises a plurality of underframe cross bars with two ends respectively connected with the bottom bars at two sides.

6. The stroller of claim 1, wherein: when the child stroller is in the unfolded state, the rotating connection position of the first swing rod and the push rod is positioned below the rotating connection position of the underframe and the push rod; and/or when the child stroller is in the unfolded state, the second swing rod is rotatably connected to the middle part of the first support frame or the middle part of the second support frame.

7. The stroller of claim 1, wherein: when the child stroller is in the unfolded state, the rotating connection part of the first support frame and the underframe is positioned in front of the rotating connection part of the second support frame and the underframe, the rotating connection part of the first support frame and the connecting piece is positioned in front of the rotating connection part of the second support frame and the connecting piece, and the second swing rod is connected with the first support frame in a rotating mode.

8. The stroller of claim 7, wherein: the first support comprises first side bars which are respectively arranged at the left side and the right side of the child stroller and extend along the up-down direction, and first support cross bars which are arranged between the upper ends of the first side bars at the two sides, wherein the lower ends of the first side bars at the two sides are respectively connected with the underframe in a rotating way, and the first support cross bars are connected with the connecting piece in a rotating way; and/or the number of the groups of groups,

the second support comprises second side rods which are respectively arranged at the left side and the right side of the child stroller and extend along the up-down direction, and second support cross rods which are arranged between the upper ends of the second side rods at the two sides, the lower ends of the second side rods at the two sides are respectively connected with the underframe in a rotating way, and the second support cross rods are connected with the connecting piece in a rotating way; or, the second support frame is a support rod extending along the up-down direction of the child stroller, the upper end part of the support rod is rotationally connected with the connecting piece, and the lower end part of the support rod is rotationally connected with the underframe.

9. The stroller of any one of claims 1-8, wherein: the child stroller further comprises a seat attached to the connector in a detachable manner.

10. The stroller of any one of claims 1-8, wherein: when the child stroller is converted from the unfolded state to the folded state, the push rod is operated to turn forward to be close to the underframe, the rotating shaft is driven to slide backward in the sliding groove, the first support frame and the second support frame are further driven to turn backward to be close to the underframe, and the wheel assembly is driven to rotate around the rotation center line to be close to the underframe; and/or the number of the groups of groups,

when the child stroller is in the deployed state, the lower surfaces of the wheels of the wheel assembly are grounded; when the child stroller is in a folded state, the lower surfaces of the wheels of the wheel assembly are disengaged from the ground; and/or the number of the groups of groups,

when the child stroller is in a folded state, the push rod, the first support frame, the second support frame and the wheel assembly are all close to the underframe, and the child stroller is flat.