CN219056343U - Child cart - Google Patents

Abstract

The utility model discloses a baby stroller, which comprises a stroller frame, wherein the stroller frame comprises a side bracket, the side bracket comprises a front bracket, a rear bracket, a seat rod assembly, a front pull rod, a rear pull rod, a push rod assembly, a sliding piece and a connecting rod, the seat rod assembly comprises a front seat rod and a rear seat rod which are connected in a sliding way along the front-back direction, the front seat rod is connected with the front bracket in a pivoting way, the rear pull rod is connected with the rear bracket in a pivoting way, any two of the push rod assembly, the rear seat rod, the front pull rod and the rear pull rod are connected in a pivoting way, or any three of the four are connected in a coaxial pivoting way, the fourth is connected with any one of the three in a pivoting way, or the four are connected in a coaxial pivoting way, the sliding piece is slidingly arranged on the front seat rod, the rear bracket is connected with the sliding piece in a pivoting way, the connecting rod is respectively connected with the push rod assembly, the sliding piece or the rear bracket in a pivoting way, and the stroller frame also comprises side brackets arranged on two sides, and a transverse support assembly which is synchronous and unfolded along the left-right direction when the side brackets are folded and unfolded.

Description

Child cart

Technical Field

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

Background

In order to bring the children out conveniently, the children's barrows are increasingly used. In order to facilitate carrying and storage of the child stroller, the child stroller can be folded generally. In the prior art, the child cart is generally folded in the height direction and the front-back direction, and part of the child cart can be folded in the left-right direction, but because the number of rods of the child cart is large, the folding steps are large, the folding process is complex, and the folded child cart is large in size and inconvenient to carry and store.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides a child trolley which can be folded in the height direction and the front-back direction when being folded, and meanwhile, a transverse strut assembly can be folded in the left-right direction, so that the child trolley can be folded transversely.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a stroller comprising a stroller frame having an expanded state and a collapsed state, the stroller frame including side brackets on left and right sides, the side brackets on each side each comprising:

the front support is provided with a front wheel assembly at the lower part;

a rear bracket, the lower part of which is provided with a rear wheel assembly;

the seat rod assembly comprises a front seat rod and a rear seat rod, the front seat rod is connected with the rear seat rod in a sliding manner along the front-rear direction, and the front end part of the front seat rod is pivotally connected with the upper end part of the front bracket;

a front pull rod, wherein one end part of the front pull rod is pivotally connected with the front bracket;

a rear pull rod, one end of which is pivotally connected with the rear bracket;

the lower part of the push rod assembly, the rear part of the rear seat rod, the other end part of the front pull rod and the other end part of the rear pull rod are connected in a two-to-two pivot mode, or any three of the four are connected in a coaxial pivot mode, and the fourth is connected in a pivot mode with any one of the three, or the four are connected in a coaxial pivot mode;

the sliding piece is arranged on the front seat rod in a sliding manner along the length extending direction of the front seat rod, and the upper end part of the rear bracket is pivotally connected with the sliding piece;

a link having one end pivotally connected to the push rod assembly and the other end pivotally connected to the slider or the rear bracket;

the trolley frame also comprises a transverse strut assembly which is connected between the side brackets on the left side and the right side and can be synchronously folded and unfolded along the left direction and the right direction when the side brackets on each side are folded and unfolded.

Preferably, the cross brace assembly comprises a first cross brace assembly, the first cross brace assembly comprises two first diagonal braces which are mutually intersected and pivotally connected at an intersection, one end part of each first diagonal brace is rotatably connected with the front support on one side through a first connecting piece, and the other end part of each first diagonal brace is rotatably connected with the rear seat rod on the other side through a second connecting piece.

Further, the first connecting piece is pivotally connected with the front bracket, one end portion of the first diagonal brace is pivotally connected with the first connecting piece, the second connecting piece is pivotally connected with the rear seat rod, and the other end portion of the first diagonal brace is pivotally connected with the second connecting piece.

Further, when the stroller is in the unfolded state, on the front support, a connection portion of the front support and the front seat rod, a connection portion of the front support and the first connecting piece, and a connection portion of the front support and the front pull rod are sequentially arranged from top to bottom, and/or a connection portion of the push rod assembly, the front pull rod, the rear pull rod and the rear seat rod is located above a connection portion of the second connecting piece and the rear seat rod, or the push rod assembly, the front pull rod, the rear seat rod and the second connecting piece are coaxially and pivotally connected.

Preferably, the cross brace assembly further comprises a second cross brace assembly, the second cross brace assembly comprises two second diagonal braces which are mutually intersected and pivotally connected at an intersection, one end of each second diagonal brace is rotatably connected with the rear pull rod on one side through a third connecting piece, and the other end of each second diagonal brace is rotatably connected with the sliding piece or the rear support on the other side through a fourth connecting piece.

Further, the third connecting piece is pivotally connected with the rear pull rod, one end portion of the second diagonal brace is pivotally connected with the third connecting piece, the fourth connecting piece is pivotally connected with the sliding piece or the rear bracket, and the other end portion of the second diagonal brace is pivotally connected with the fourth connecting piece.

Further, when the child stroller is in the unfolded state, on the rear pull rod, the push rod assembly, the front pull rod, the connection part of the rear seat rod and the rear pull rod, the connection part of the third connecting piece and the rear pull rod, and the connection part of the rear support and the rear pull rod are sequentially arranged from top to bottom.

Preferably, the cross brace assembly further comprises a telescopic rod assembly connected between the front brackets on the left side and the right side, the telescopic rod assembly comprises a first rod and a second rod which extend in the left-right direction, the first rod and the second rod are connected in a sliding mode in the left-right direction, one end portion of the first rod, which is far away from the second rod, is fixedly arranged on the lower portion of the front bracket on one side, and one end portion of the second rod, which is far away from the first rod, is fixedly arranged on the lower portion of the front bracket on the other side.

Preferably, the cross brace assembly further includes a handle assembly connected between upper portions of the push rod assemblies at left and right sides, the handle assembly including a first handle lever having one end pivotally connected to an upper portion of the push rod assembly at one side and a second handle lever having one end pivotally connected to an upper portion of the push rod assembly at the other side, and the other end pivotally connected to the other end of the second handle lever.

Preferably, the side bracket of each side further comprises a side armrest, wherein two of the front end of the side armrest, the front end of the front seat rod and the upper end of the front bracket are pivotally connected, a third one is pivotally connected with any one of the above two, or the three are pivotally connected coaxially, and the rear end of the side armrest is pivotally connected with the push handle assembly.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages: the child stroller can be folded in the height direction and the front-rear direction through the folding operation of the side brackets on each side, and when the side brackets are folded, the transverse support assemblies can be driven to be folded synchronously in the left-right direction, so that the side brackets on the left side and the right side are close to each other, and the transverse folding of the child stroller is realized. Like this for children's shallow folding operation is simple, and children's shallow is folding back, and its length in the direction of height, fore-and-aft direction and left and right sides all reduces for children's shallow folding back compact structure, small, portable and deposit.

Drawings

Fig. 1 is one of perspective views of the child stroller in the unfolded state (the other end of the second diagonal strut is rotatably connected to the slider when viewed from the front to the rear);

fig. 2 is a second perspective view of the stroller in the unfolded state (the other end of the second diagonal brace is rotatably connected to the rear bracket when viewed from the front to the rear);

fig. 3 is a third perspective view of the child stroller in the unfolded state (the other end of the second diagonal brace is rotatably connected to the rear bracket when viewed from the rear to the front);

FIG. 4 is a schematic side view of the stroller in the unfolded state (the other end of the second diagonal brace is rotatably connected to the rear bracket);

fig. 5 is a schematic perspective view of the stroller in the folding process (the other end of the second diagonal brace is rotatably connected with the rear bracket);

FIG. 6 is a schematic side view of the stroller in the folding process (the other end of the second diagonal brace is rotatably connected to the rear bracket);

fig. 7 is a schematic perspective view of the stroller in a folded state (the other end of the second diagonal brace is rotatably connected to the rear bracket);

fig. 8 is a schematic side view of the stroller in a folded state (the other end of the second diagonal brace is rotatably connected to the rear bracket).

Wherein: 11. a front bracket; 12. a rear bracket; 131. a front seat bar; 132. a rear seat post; 14. a front pull rod; 15. a rear pull rod; 16. a push rod assembly; 161. an upper push rod; 162. a push rod is downwards pushed; 17. a slider; 18. a connecting rod; 19. a side rail; 21. a first cross brace assembly; 211. a first diagonal brace; 212. a first connector; 213. a second connector; 22. a second cross brace assembly; 221. a second diagonal brace; 222. a third connecting member; 223. a fourth connecting member; 23. a telescoping rod assembly; 231. a first lever; 232. a second lever; 24. a grip assembly; 241. a first handle bar; 242. a second handle bar; 3. a front wheel assembly; 4. and a rear wheel assembly.

Detailed Description

The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.

As shown in fig. 1 to 8, the child stroller of the present utility model includes a stroller frame having an unfolded state and a folded state, a front wheel assembly 3 provided at a bottom front portion of the stroller frame, and a rear wheel assembly 4 provided at a bottom rear portion of the stroller frame.

The cart frame comprises side brackets arranged on the left side and the right side respectively and a transverse strut assembly connected between the side brackets on the left side and the right side.

The side brackets on each side include a front bracket 11, a rear bracket 12, a seat bar assembly, a front tie bar 14, a rear tie bar 15, a push bar assembly 16, a slider 17, and a link 18.

The front wheel assembly 3 is disposed at a lower portion of the front bracket 11 on each side, and the rear wheel assembly 4 is disposed at a lower portion of the rear bracket 12 on each side.

The seat bar assembly includes a front seat bar 131 and a rear seat bar 132, the front seat bar 131 and the rear seat bar 132 being slidably connected in the front-rear direction, and a front end portion of the front seat bar 131 being pivotally connected with an upper end portion of the front bracket 11. In this embodiment, the front seat post 131 has a lumen extending along a length direction thereof, and the rear seat post 131 is slidably disposed in the lumen along the length extending direction of the lumen of the front seat post 131.

The slider 17 is slidably provided on the front seat bar 131 in a length extending direction of the front seat bar 131, and an upper portion of the rear bracket 12 is pivotally connected to the slider 17. In this embodiment, the sliding member 17 is a sliding sleeve, which is disposed outside the front seat post 131 and is capable of sliding along the length extending direction of the front seat post 131.

One end of the link 18 is pivotally connected to the push rod assembly 16, and the other end of the link 18 is pivotally connected to the slider 17 or the rear bracket 12. In this embodiment, the slider 17, the upper portion of the rear bracket 12, and the other end portion of the link 18 are pivotally connected coaxially.

One end of the front tie rod 14 is pivotally connected to the front bracket 11, one end of the rear tie rod 15 is pivotally connected to the rear bracket 12, any two of the lower portion of the push rod assembly 16, the rear portion of the rear seat rod 132, the other end of the front tie rod 14 and the other end of the rear tie rod 15 are pivotally connected, or any three of the four are pivotally connected coaxially, and the fourth is pivotally connected to any one of the three, or the four are pivotally connected coaxially.

In this embodiment, the push rod assembly includes an upper push rod 161 and a lower push rod 162, and a lower portion of the upper push rod 161 is pivotally connected to an upper portion of the lower push rod 162. One end of the link 18 is pivotally connected to the push down lever 162, and the lower portion of the push down lever 162, the rear portion of the rear seat post 132, the other end of the front link 14, and the other end of the rear link 15 are coaxially pivotally connected.

The side brackets on each side further comprise a side armrest 19, any two of the front end of the side armrest 19, the front end of the front seat bar 131 and the upper end of the front bracket 11 are pivotally connected, and a third one is pivotally connected to any one of the above or the three are pivotally connected coaxially, and the rear end of the side armrest 19 is pivotally connected to the push down lever 162. In this embodiment, the front end portion of the side arm rest 19, the front end portion of the front seat post 131, and the upper end portion of the front bracket 11 are pivotally connected coaxially.

Thus, in the side brackets on each side, a slider-crank mechanism is formed between the push down lever 162, the side rail 19, the front seat post 131 and the rear seat post 132, a slider-crank mechanism is formed between the front bracket 11, the front tie rod 14, the front seat post 131 and the rear seat post 132, and a slider-crank mechanism is formed between the rear bracket 12, the rear tie rod 15, the front seat post 131 and the rear seat post 132.

The cross brace assembly comprises a first cross brace assembly 21, the first cross brace assembly 21 comprising two first diagonal braces 211 intersecting each other and pivotally connected at the intersection. One end of the first diagonal brace 211 is rotatably connected to the front bracket 11 on one side via the first link 212, and the other end of the first diagonal brace 211 is rotatably connected to the rear seat bar 132 on the other side via the second link 213. One end of the other first diagonal brace 211 is rotatably connected to the front bracket 11 on the other side via a first link 212, and the other end of the first diagonal brace 211 is rotatably connected to the rear seat bar 132 on one side via a second link 213.

Specifically, the first link 212 is pivotally connected to the front bracket 11, and one end of the first diagonal strut 211 is pivotally connected to the first link 212. The second link 213 is pivotally connected to the rear seat post 132, and the other end of the first diagonal strut 211 is pivotally connected to the second link 213.

In this embodiment, as shown in fig. 1 to 8, the first connecting member 212 and the second connecting member 213 are both in a U-shaped structure, the bottom of the first connecting member 212 is pivotally connected to the front bracket 11 through a rotation shaft extending in the left-right direction, and both sides of the first connecting member 212 are pivotally connected to the first diagonal brace 211 through a rotation shaft extending in the up-down direction. The bottom of the second link 213 is pivotally connected to the rear seat bar 132 through a rotation shaft extending in the left-right direction, and both sides of the second link 213 are pivotally connected to the first diagonal brace 211 through a rotation shaft extending in the up-down direction. The first connector 212 and the second connector 213 may take other forms, such as an L-shaped structure.

The cross brace assembly further comprises a second cross brace assembly 22, the second cross brace assembly 22 comprising two second diagonal braces 221 intersecting each other and pivotally connected at the intersection. One end of the second diagonal brace 221 is rotatably connected to the rear tie 15 on one side via a third link 222, and the other end of the second diagonal brace 221 is rotatably connected to the slider 17 on the other side via a fourth link 223. One end of the other second diagonal brace 221 is rotatably connected to the rear tie 15 of the other side through a third link 222, and the other end of the second diagonal brace 221 is rotatably connected to the slider 17 of one side through a fourth link 223, as shown in fig. 1. The other end portions of the two second diagonal braces 221 may be rotatably connected to the corresponding side of the rear brackets 12 through fourth connection members 223, as shown in fig. 2 to 8.

Specifically, the third link 222 is pivotally connected to the rear link 15, and one end of the second diagonal strut 221 is pivotally connected to the third link 222. The fourth link 223 is pivotally connected to the slider 17 or the rear bracket 12, and the other end of the second diagonal stay 221 is pivotally connected to the fourth link 223.

As shown in fig. 1, the third connecting member 222 and the fourth connecting member 223 may each have a U-shaped structure, the bottom of the third connecting member 222 is pivotally connected to the rear tie rod 15 through a rotation shaft extending in the left-right direction, and both sides of the third connecting member 222 are pivotally connected to the second diagonal brace 221 through a rotation shaft extending in the up-down direction. The bottom of the fourth link 223 is pivotally connected to the slider 17 through a pivot shaft extending in the left-right direction, and both sides of the fourth link 223 are pivotally connected to the second diagonal brace 221 through a pivot shaft extending in the up-down direction. The third connecting member 222 and the fourth connecting member 223 may also take other forms, such as an L-shaped structure for the fourth connecting member 223 in fig. 2 to 8.

The wale assembly further includes a telescopic rod assembly 23, and the telescopic rod assembly 23 is connected between lower portions of the front brackets 11 at left and right sides, which can be telescopic in left and right directions. Specifically, the telescopic rod assembly includes a first rod 231 and a second rod 232 that all extend in the left-right direction, the first rod 231 and the second rod 232 are slidably connected in the left-right direction, one end portion of the first rod 231, which is far away from the second rod 232, is fixedly disposed at the lower portion of the front bracket 11 on one side, and one end portion of the second rod 232, which is far away from the first rod 231, is fixedly disposed at the lower portion of the front bracket 11 on the other side.

The cross brace assembly further comprises a handle assembly 24, wherein the handle assembly 24 is connected between the upper parts of the push rod assemblies 16 on the left side and the right side, and the handle assembly 24 can be folded and unfolded along the left direction and the right direction. Specifically, the grip assembly 24 includes a first handle lever 241 having one end pivotally connected to an upper portion of the upper push rod 161 on one side and a second handle lever 242 having one end pivotally connected to an upper portion of the upper push rod 161 on the other side, and the other end of the first handle lever 241 is pivotally connected to the other end of the second handle lever 242.

When the stroller is in the unfolded state, as shown in fig. 1 to 4, the seat bar assembly extends in the front-rear direction, and the rear seat bar 132 largely retracts into the lumen of the front seat bar 131, and the slider 17 is positioned on the front seat bar 131 at the rear end portion of the front seat bar 131. On the front bracket 11, the connection between the front bracket 11 and the front seat bar 131, the connection between the front bracket 11 and the first connecting piece 212, and the connection between the front bracket 11 and the front tie rod 14 are sequentially arranged from top to bottom. On the rear bracket 12, the junction of the rear bracket 12 and the slider 17 is located above the junction of the rear bracket 12 and the rear tie rod 15. On the rear seat bar 132, the connection points of the lower push bar 162, the front pull bar 14, the rear pull bar 15 and the rear seat bar 132 are located above the connection points of the second connecting piece 213 and the rear seat bar 132, or the lower push bar 162, the front pull bar 14, the rear pull bar 15, the rear seat bar 132 and the second connecting piece 213 are coaxially and pivotally connected. On the rear tie rod 15, the connection of the lower push rod 161, the front tie rod 14, the rear seat rod 132 and the rear tie rod 15, the connection of the third connecting piece 222 and the rear tie rod 15, and the connection of the rear bracket 12 and the rear tie rod 15 are sequentially arranged from top to bottom. The first cross brace assembly 21, the second cross brace assembly 22, the telescopic rod assembly 23 and the handle assembly 24 are all in the unfolded state.

When the stroller is folded from the unfolded state, the upper push rod 161 is rotated backwards and downwards around the pivot connection with the lower push rod 162 to be close to the lower push rod 162, and the push rod assembly 16 is rotated forwards around the pivot connection with the rear seat rod 132 to be close to the seat rod assembly; the sliding member 17 is driven to slide forward along the length extending direction of the front seat post 131 by the connecting rod 18, and the sliding member 17 slides forward and simultaneously drives the rear bracket 12 to rotate around the pivot connection part with the sliding member 17 to approach the seat post assembly. The rear seat rod 132 slides backwards relative to the front seat rod 131 and gradually extends out of the front seat rod 131, the rear pull rod 15 is closed towards the rear seat rod 132 in the process of sliding the rear seat rod 132 backwards, and the rear pull rod 15 further drives the rear bracket 12 to approach the seat rod assembly; simultaneously, the sliding of the rear seat rod 132 also drives the front pull rod 14 to approach the seat rod assembly, and the front pull rod 14 pulls the front bracket 11 to rotate to approach the seat rod assembly. The sliding piece 17 slides and drives the two second diagonal braces 221 to rotate and close together, and when the front bracket 11 rotates, drives the two first diagonal braces 211 to rotate and close together, so that the telescopic rod assembly 23 is contracted by sliding the first rod 231 and the second rod 232 relatively, and the first handle rod 241 and the second handle rod 242 rotate and close together relatively. The folding process is shown in fig. 5 and 6 until the components that make up the cart frame are brought together closely. In the folding process, the side brackets on the left side and the right side can drive the transverse support assembly to fold along the left direction and the right direction at the same time, so that the child trolley is folded transversely at the same time, and the folding operation of the child trolley is convenient.

When the stroller is in the collapsed condition, as shown in fig. 7 and 8, the upper push rod 161 and the lower push rod 162 are closed, the rear bracket 12 and the front bracket 11 are closed, the front wheel assembly 3 and the rear wheel assembly 4 are at least partially overlapped, the side rail 19 is tightly closed between the front bracket 11 and the lower push rod 162, and the rear seat bar 132 is fully extended from the front seat bar 131. The first cross support assembly 21, the second cross support assembly 22, the telescopic rod assembly 23 and the handle assembly 24 are all in a folded state, so that the side brackets on the left side and the right side are close. When the child stroller is in a folded state, the lengths of the child stroller in the height direction, the front-back direction and the left-right direction are reduced, so that the child stroller is compact in structure, small in size and convenient to carry and store.

The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims (10)

1. A stroller comprising a stroller frame having an expanded state and a collapsed state, wherein: the shallow frame is including being located the side support of left and right sides, every side the side support all includes:

the front support is provided with a front wheel assembly at the lower part;

a rear bracket, the lower part of which is provided with a rear wheel assembly;

the seat rod assembly comprises a front seat rod and a rear seat rod, the front seat rod is connected with the rear seat rod in a sliding manner along the front-rear direction, and the front end part of the front seat rod is pivotally connected with the upper end part of the front bracket;

a front pull rod, wherein one end part of the front pull rod is pivotally connected with the front bracket;

a rear pull rod, one end of which is pivotally connected with the rear bracket;

the lower part of the push rod assembly, the rear part of the rear seat rod, the other end part of the front pull rod and the other end part of the rear pull rod are connected in a two-to-two pivot mode, or any three of the four are connected in a coaxial pivot mode, and the fourth is connected in a pivot mode with any one of the three, or the four are connected in a coaxial pivot mode;

the sliding piece is slidably arranged on the front seat rod along the length extending direction of the front seat rod, and the upper end part of the rear bracket is pivotally connected with the sliding piece;

a link having one end pivotally connected to the push rod assembly and the other end pivotally connected to the slider or the rear bracket;

the trolley frame also comprises a transverse strut assembly which is connected between the side brackets on the left side and the right side and can be synchronously folded and unfolded along the left direction and the right direction when the side brackets on each side are folded and unfolded.

2. The stroller of claim 1, wherein: the cross brace assembly comprises a first cross brace assembly, the first cross brace assembly comprises two first diagonal braces which are mutually intersected and are pivotally connected at the intersection, one end part of each first diagonal brace is rotationally connected with the front support on one side through a first connecting piece, and the other end part of each first diagonal brace is rotationally connected with the rear seat rod on the other side through a second connecting piece.

3. The stroller of claim 2, wherein: the first connecting piece with the fore-stock pivot connection, the one end of first diagonal brace with first connecting piece pivot connection, the second connecting piece with back seat pole pivot connection, the other end of first diagonal brace with second connecting piece pivot connection.

4. The stroller of claim 2, wherein: when the child stroller is in the unfolded state, the connection part of the front bracket and the front seat rod, the connection part of the front bracket and the first connecting piece, and the connection part of the front bracket and the front pull rod are sequentially arranged from top to bottom, and/or the connection part of the push rod component, the front pull rod, the rear pull rod and the rear seat rod is positioned above the connection part of the second connecting piece and the rear seat rod, or the push rod component, the front pull rod, the rear seat rod and the second connecting piece are coaxially and pivotally connected.

5. The stroller of claim 1, wherein: the cross brace assembly further comprises a second cross brace assembly, the second cross brace assembly comprises two second diagonal braces which are mutually intersected and are pivotally connected at the intersection, one end of each second diagonal brace is rotationally connected with the rear pull rod on one side through a third connecting piece, and the other end of each second diagonal brace is rotationally connected with the sliding piece on the other side or the rear support through a fourth connecting piece.

6. The stroller of claim 5, wherein: the third connecting piece is pivotally connected with the rear pull rod, one end part of the second diagonal brace is pivotally connected with the third connecting piece, the fourth connecting piece is pivotally connected with the sliding piece or the rear bracket, and the other end part of the second diagonal brace is pivotally connected with the fourth connecting piece.

7. The stroller of claim 5, wherein: when the child stroller is in the unfolded state, on the rear pull rod, the push rod assembly, the front pull rod, the joint of the rear seat rod and the rear pull rod, the joint of the third connecting piece and the rear pull rod and the joint of the rear support and the rear pull rod are sequentially arranged from top to bottom.

8. The stroller of claim 1, wherein: the cross brace assembly further comprises a telescopic rod assembly connected between the front brackets on the left side and the right side, the telescopic rod assembly comprises a first rod and a second rod which extend in the left-right direction, the first rod and the second rod are connected in a sliding mode in the left-right direction, one end portion of the first rod, which is far away from the second rod, is fixedly arranged on the lower portion of the front bracket on one side, and one end portion of the second rod, which is far away from the first rod, is fixedly arranged on the lower portion of the front bracket on the other side.

9. The stroller of claim 1, wherein: the cross brace assembly further comprises a handle assembly connected between the upper parts of the push rod assemblies on the left side and the right side, the handle assembly comprises a first handle rod and a second handle rod, one end part of the first handle rod is pivotally connected with the upper part of the push rod assembly on one side, one end part of the second handle rod is pivotally connected with the upper part of the push rod assembly on the other side, and the other end part of the first handle rod is pivotally connected with the other end part of the second handle rod.

10. The stroller of claim 1, wherein: the side brackets of each side further comprise side armrests, two of the front end parts of the side armrests, the front end parts of the front seat rods and the upper end parts of the front brackets are pivotally connected, a third person is pivotally connected with any one of the front end parts, or the rear end parts of the side armrests are coaxially pivotally connected with the push rod assembly.

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