CN115071803B

CN115071803B - Children's barrow

Info

Publication number: CN115071803B
Application number: CN202210978979.4A
Authority: CN
Inventors: 战华锋; 李丰
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2023-01-31
Anticipated expiration: 2042-08-16
Also published as: CN115071803A

Abstract

The invention discloses a child stroller with an unfolded state and a folded state, which comprises a push rod assembly, a front support assembly, a rear support assembly, a first connecting rod, a second connecting rod, a wheel assembly and a locking mechanism, wherein the rear support assembly comprises a first rear support and a second rear support, and the first rear support and the second rear support are mutually connected in a sliding manner. The first connecting rod is connected with the front support assembly through a pivot, the first rear support is connected with the front support assembly through a pivot, and two rotating axes are parallel to each other; or the first connecting rod, the front support assembly and the first rear support are rotationally connected with each other around the same rotation axis; the second connecting rod, the push rod assembly and the second rear bracket are rotationally connected with each other around the first axis; the second connecting rod is pivotally connected with the front support component; the first link is pivotally connected to the push rod assembly. This children's shallow, frame novel structure, the member is connected simply, and folding mode is simple and convenient, and folding back frame is front and back flat and highly reduce, and occupation space is littleer, is convenient for deposit or transport.

Description

Children's barrow

Technical Field

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

Background

Among the prior art, the children's shallow all has generally to expand and fold condition, and folding back frame volume reduces, is convenient for deposit and transport. Folding principles of the baby strollers in the market are different, and the size of some strollers is still large after being folded, so that the strollers occupy space.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a baby stroller with a novel structure.

In order to achieve the purpose, the invention is realized by the following scheme:

a child stroller is provided with an unfolding state and a folding state and comprises a push rod assembly, a front support assembly, a rear support assembly, a first connecting rod, a second connecting rod, a wheel assembly and a locking mechanism for locking the child stroller in the unfolding state, wherein the rear support assembly comprises a first rear support and a second rear support, and the first rear support and the second rear support are mutually connected in a sliding manner; the wheel assemblies are arranged on the lower portion of the front support assembly and the lower portion of the second rear support respectively;

the first connecting rod is in pivot connection with the front support assembly, the first rear support is in pivot connection with the front support assembly, and a rotation axis line between the first connecting rod and the front support assembly and a rotation axis line between the first rear support and the front support assembly are parallel to each other; or the first connecting rod, the front support assembly and the first rear support are rotationally connected with each other around the same rotation axis;

the second connecting rod, the push rod assembly and the second rear bracket are rotationally connected with each other around a first axis;

the second connecting rod is pivotally connected with the front support component; the first connecting rod is pivotally connected with the push rod component.

In some embodiments, the first link, the front bracket assembly, and the first rear bracket are rotatably coupled to one another about a second axis. The frame structure is further simplified.

In some embodiments, the front carrier assembly includes a front carrier; when the stroller is in the unfolded state, the front support is located on the outer side of the first rear support at the corresponding position in the width direction of the stroller.

In some embodiments, the front bracket assembly includes a front bracket and a front bracket support fixedly disposed at an upper portion of the front bracket, and the second link is pivotally connected to the front bracket support; the stroller, in a deployed state: the front bracket supporting part is used for supporting a child; in the width direction of the stroller, the front bracket is located at the outer side of the first rear bracket at the corresponding position, and the front bracket supporting part is located between the front bracket and the first rear bracket at the corresponding position. Therefore, the front support supporting part is relatively positioned in the middle of the frame, and the front support and the rear support are more stably supported at two sides.

In some embodiments, the front bracket assembly includes a front bracket and a front bracket support fixedly disposed at an upper portion of the front bracket, and the second link includes a second link support pivotally connected to the front bracket support; when the stroller is in an unfolded state, the extension direction of the front support supporting part is parallel to or coincided with the extension direction of the second connecting rod supporting part, so that the stroller can be used for supporting children. Therefore, the front support supporting part and the second connecting rod supporting part are matched with each other to form the seat rod, the seat rod can be folded back and forth when the frame is folded, and the folding volume of the baby stroller is further reduced.

In some embodiments, the second link includes a second link connecting portion fixedly connected to the second link supporting portion, and the second link connecting portion, the push rod assembly, and the second rear bracket are rotatably connected to each other about the first axis. Thereby further optimizing the rod structure and the spatial layout of the children's cart.

In some embodiments, the second link includes a second link connecting portion fixedly connected to the second link supporting portion, the push rod assembly includes a lower push rod, and the second link connecting portion, the lower push rod, and the second rear bracket are rotatably connected to each other about the first axis; when the stroller is in the unfolded state, the extending direction of the second connecting rod connecting part is parallel to the extending direction of the lower push rod. Thereby making the appearance of the stroller more concise.

In some embodiments, when the stroller is in the unfolded state, the second link supporting portion extends rearward and downward, and an included angle between an extending direction of the second link supporting portion and an extending direction of the second link connecting portion is an acute angle. Thereby the second connecting rod can cooperate with the overall structure shape of frame when linkage with many member bars, hides among the frame for the outward appearance of this children's shallow is more succinct.

In some embodiments, the stroller is in a collapsed position with the front frame support extending rearwardly upwardly and the second link support extending rearwardly downwardly. So that the stroller is more compact and flat in the front-rear direction after being folded.

In some embodiments, the push rod assembly includes an upper push rod and a lower push rod pivotally connected to the upper push rod, and the lower push rod is further pivotally connected to the second rear bracket and the first link, respectively; the wheel assembly comprises a front wheel at the lower part of the front support assembly and a rear wheel at the lower part of the second rear support; the stroller is in a folded state: the upper push rod and the lower push rod are positioned behind the front wheel, the front wheel is positioned at the outer side of the rear wheel at the corresponding position, and the height of the upper push rod is lower than that of a rotating shaft axis between the second connecting rod supporting part and the front support supporting part. Thereby making the centre of gravity of the pushchair more stable.

In some embodiments, the push rod assembly includes a lower push rod pivotally connected to the second rear bracket and the first link, respectively, and when the stroller is in the deployed state: a rotating shaft center line between the lower push rod and the second rear support is positioned below a rotating shaft center line between the lower push rod and the first connecting rod; in the width direction of the stroller, the second connecting rod, the lower push rod and the first connecting rod are sequentially arranged from inside to outside, and the lower push rod is located on the outer side of the second rear support.

In some embodiments, the front bracket assembly includes a front bracket having an upper portion pivotally connected to a lower portion of the first link; the push rod assembly comprises a lower push rod, the upper part of the first connecting rod is pivoted with the lower push rod, and the lower part of the lower push rod is also pivoted with the second rear support; the stroller is in a deployed state: the extension center line of the front bracket and the extension center line of the first connecting rod are positioned in the same vertical plane.

In some embodiments, the stroller, in the deployed state: the extension line of the extension center line of the front bracket is superposed with the extension center line of the first connecting rod. Therefore, the first connecting rod and the front support are like a rod piece in appearance, and the frame structure is simpler.

Due to the application of the technical scheme, the stroller provided by the invention has the advantages that the frame structure is novel, the rod piece connection is simple, the folding mode is simple and convenient, the stroller frame is flat in front and back and reduced in height after being folded, the occupied space is smaller, and the stroller frame is convenient to store or transport.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic side view of a stroller in an expanded state according to an embodiment of the present invention;

fig. 2 is a perspective view of the stroller in the unfolded state in this embodiment;

fig. 3 is a schematic perspective view of the stroller of the present embodiment at another angle in the unfolded state;

fig. 4 is a schematic perspective view of the stroller in the folding process in this embodiment;

fig. 5 is a schematic perspective view of the stroller in the further folding process in this embodiment;

FIG. 6 is a schematic side view of the stroller in this embodiment during further folding;

FIG. 7 is a side view of the stroller in the folded position in accordance with the present embodiment;

wherein: 100. a push rod assembly; 110. a lower push rod; 120. a push rod is arranged; 130. a revolute joint; 200. a front carrier assembly; 210. a front bracket; 220. a front bracket support; 300. a rear bracket assembly; 310. a first rear bracket; 311. a rear bracket connection part; 320. a second rear bracket; 400. a first link; 500. a second link; 501. a rod body; 502. a plate body; 510. a second link supporting portion; 520. a second link connecting portion; 600. a wheel assembly; 610. a front wheel; 620. a rear wheel; 710. a first cross bar; 720. a second cross bar; x, a first axis; y, a second axis line; z, a third axis; p, a fourth axis line; q, a fifth axis line.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the invention may be more readily understood by those skilled in the art.

It should be noted that references herein to left, right, up, down, front, rear, etc. in the definition of direction are made with reference to the orientation as viewed by a child normally seated on the stroller in the deployed state, based on fig. 1, and are for convenience and simplicity of description only, and do not indicate or imply that the referenced elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the present invention.

Referring to fig. 1 and 7, the stroller provided in this embodiment has an unfolded state and a folded state, and includes a push rod assembly 100, a front support assembly 200, a rear support assembly 300, a first link 400, a second link 500, a wheel assembly 600, and a locking mechanism (not shown) for locking the stroller in the unfolded state. In this embodiment, the stroller includes two sets of side brackets disposed symmetrically and a cross bracket connected between the two sets of side brackets. Each set of side brackets comprises the push rod assembly 100, the front bracket assembly 200, the rear bracket assembly 300, the first link 400, the second link 500, the wheel assembly 600 and the locking mechanism, the rear bracket assembly 300 further comprises a second rear bracket 320, and the cross bracket comprises a first cross rod 710, a second cross rod 720 and the like. The wheel assembly 600 is disposed at a lower portion of the front bracket assembly 200 and a lower portion of the second rear bracket 320, respectively, and the wheel assembly 600 specifically includes a front wheel 610 at a lower portion of the front bracket assembly 200 and a rear wheel 620 at a lower portion of the second rear bracket 320. The specific structure of each set of side brackets in the unfolded state of the stroller in this embodiment will be described with reference to fig. 1 to 3.

The push rod assembly 100 includes an upper push rod 120 and a lower push rod 110, the upper ends of the upper push rods 120 on both sides are connected to form a push handle cross bar for a pusher to hold, the upper push rod 120 is pivotally connected to the lower push rod 110, specifically, rotatably connected around a fifth axis Q, a rotary joint 130 is further disposed at the rotary connection position of the upper push rod 120 and the lower push rod 110, and a locking mechanism for locking the upper push rod 120 and the lower push rod 110 relatively may be disposed at the rotary joint 130. In the unfolded state, the upper push rod 120 and the lower push rod 110 respectively tilt from bottom to top and extend gradually backward, and the center lines of the two extend in a collinear manner.

The front bracket assembly 200 includes a front bracket 210, and a front bracket support 220 fixedly disposed at an upper portion of the front bracket 210, wherein a front wheel 610 is disposed at a lower portion of the front bracket 210, and lower portions of the front brackets 210 at both sides are fixedly connected by a front cross bar. In the unfolded state, the front supporter 210 is gradually upwardly inclined from the front and then, the front supporter supporting part 220 is gradually downwardly inclined from the front and then, the front supporter supporting part 220 is used to support the child, and the middle part of the front supporter supporting part 220 is fixedly disposed at the upper part of the front supporter 210, and the front supporter supporting part 220 is protruded from the front supporter 210 at the front side and the rear side, respectively. The front bracket 210 and the front bracket supporting part 220 may be integrally formed or separately manufactured and then welded and fixed together. In the width direction of the stroller, the front frame supporting parts 220 are located at the inner sides of the front frames 210, a first cross bar 710 is further connected between the left and right front frame assemblies 200, the first cross bar 710 is specifically connected between the two front frame supporting parts 220, and the first cross bar 710 and the front frame assemblies 200 at the two sides may be fixedly arranged or rotatably connected around a second axis line Y.

The rear bracket assembly 300 includes a first rear bracket 310 and a second rear bracket 320, and the first rear bracket 310 and the second rear bracket 320 are slidably connected to each other. In this embodiment, the first rear bracket 310 and the second rear bracket 320 are in the form of sleeves, the second rear bracket 320 has a lumen extending along its own axial direction, and the outer diameter of the first rear bracket 310 is not greater than the inner diameter of the lumen, so that the first rear bracket 310 can be relatively slidably inserted therein along the extending direction of the lumen. In the unfolded state, the first rear bracket 310 and the second rear bracket 320 are respectively inclined downwards from front to back, the central lines of the first rear bracket 310 and the second rear bracket 320 extend in a collinear manner, the lower part of the second rear bracket 320 is further provided with a rear wheel 620, and the lower parts of the second rear brackets 320 at the two sides are fixedly connected through a rear cross rod.

In this embodiment, a second cross bar 720 is further disposed between the left and right sets of second rear brackets 320, each of the left and right sides of the second cross bar 720 is fixedly connected to the upper portion of the second rear bracket 320 on the same side, and the second cross bar 720 slightly protrudes from the second rear bracket 320 in the left-right direction. Each side of the lower push rod 110 is pivotally connected to the second rear bracket 320, and further, the lower portion of the lower push rod 110 is pivotally connected to the second rear bracket 320, and in this embodiment, specifically, the lower portion of the lower push rod 110 is pivotally connected to an end portion corresponding to the second cross bar 720 around the first axis X, so that in the width direction of the stroller, the lower push rod 110 is located relatively on the outer side of the second rear bracket 320, and the lower push rod 110 is located further on the outer side of the entire rear bracket assembly 300.

On the other hand, in the present embodiment, the upper portion of the first rear bracket 310 is pivotally connected to the front bracket assembly 200. Specifically, the upper end of the first rear bracket 310 has an annular rear bracket connecting portion 311, and the rear bracket connecting portion 311 is sleeved on the first cross bar 710 and can be relatively rotatably disposed around the second axis Y. The rear bracket connection part 311 is located relatively inside the front bracket support part 220 in the width direction of the stroller.

The first link 400 extends obliquely upward from front to rear, and the first link 400 is pivotally connected to the push rod assembly 100, and further the first link 400 is pivotally connected to the lower push rod 110, in this embodiment, an upper portion of the first link 400 is pivotally connected to the lower push rod 110, and particularly, is rotatably connected about a fourth axis P. The lower portion of the first link 400 is pivotally connected to the upper portion of the front bracket 210, specifically, rotatably connected about the second axis line Y. In this embodiment, the first link 400 and the front bracket 210 are arc-shaped rods which are gradually curved and extended upwards from front to back, and in the unfolded state, the extension center line of the front bracket 210 and the extension center line of the first link 400 are located in the same vertical plane, and further, the extension line of the extension center line of the front bracket 210 coincides with the extension center line of the first link 400. Therefore, the first link 400 and the front bracket 210 on each side are integrally in the shape of a continuous rod in appearance, and the shape of the stroller is more concise and smooth.

As can be seen from the above, in the present embodiment, the first link 400, the front bracket assembly 200 and the first rear bracket 310 are rotatably connected to each other around the same rotation axis, i.e. the second axis Y. In the width direction of the stroller, the front supporter 210 is positioned outside the first rear supporter 310 at the corresponding position, the front supporter supporting part 220 is positioned between the front supporter 210 and the first rear supporter 310 at the corresponding position, and the first link 400 is positioned at the outermost side together with the front supporter 210.

In other embodiments, the first link 400 may be pivotally connected to the front bracket assembly 200, the first rear bracket 310 may be pivotally connected to the front bracket assembly 200, and a rotation axis between the first link 400 and the front bracket assembly 200 and a rotation axis between the first rear bracket 310 and the front bracket assembly 200 may be parallel to each other.

The second link 500 includes a second link supporting part 510, and a second link connecting part 520 fixedly connected to the second link supporting part 510, and in the unfolded state, the second link supporting part 510 extends in the front-rear direction, and the second link connecting part 520 extends in the up-down direction. More specifically, the second link supporting part 510 extends obliquely downward and rearward, the second link connecting part 520 extends obliquely downward and forward, and an angle formed by the extending direction of the second link supporting part 510 and the extending direction of the second link connecting part 520 is an acute angle. In this embodiment, in order to take structural strength and manufacturing simplicity of the rod into consideration, the second connecting rod 500 is actually composed of a rod body 501 and a plate body 502, the rod body 501 is mainly a hollow rod extending linearly, and the extending direction of the rod body 501 is the extending direction of the second connecting rod supporting portion 510; the plate body 502 is an integrally formed flat plate having two portions, i.e., a second link supporting portion 510 and a second link connecting portion 520. The rod 501 and the plate 502 are fixed together after being manufactured respectively to form a second connecting rod 500, and the plate 502 is fixed on the inner side of the rod 501 in the width direction of the stroller.

In this embodiment, the second link 500 is pivotally connected to the front bracket assembly 200, further the second link 500 is pivotally connected to the front bracket supporting portion 220, further the second link supporting portion 510 is pivotally connected to the front bracket supporting portion 220, and specifically, the front portion of the second link supporting portion 510 is pivotally connected to the rear portion of the front bracket supporting portion 220 around the third axis Z. On the other hand, the second link 500, the push rod assembly 100 and the second rear bracket 320 are rotatably connected to each other around the first axis X, the second link connecting portion 520, the push down rod 110 and the second rear bracket 320 are rotatably connected to each other around the first axis X, and specifically, a lower portion of the second link connecting portion 520, a lower portion of the push down rod 110 and a corresponding one end portion of the second cross bar 720 are rotatably connected around the first axis X.

The first axis X, the second axis Y, the third axis Z, the fourth axis P, and the fifth axis Q extend in the left-right direction of the stroller, and the five axes are parallel to each other. Wherein, when the stroller is in the unfolded state, the first axis line X is located below the fourth axis line P along the length direction of the lower push rod 110; the second axis line Y is located forward of the third axis line Z in the length direction of the front supporter support 220.

Referring to fig. 1 to 3, in the present embodiment, when the stroller is in the unfolded state: the extension direction of the front supporter support 220 of each side is parallel to or coincides with the extension direction of the second link support 510, both of which extend from the front to the rear with a slight downward inclination for supporting the child. The extension directions of the front bracket supporting part 220 and the second connecting rod supporting part 510 on each side are overlapped, so that the seat rod of the stroller is formed by the front bracket supporting part 220 and the second connecting rod supporting part 510 on each side, and the front bracket supporting part and the second connecting rod supporting part are overlapped front and back at the connecting position, so that the strength of the connecting position is increased. In addition, when the stroller is in the unfolded state, the extending direction of the second link connection part 520 on each side is parallel to the extending direction of the lower push rod 110, and in the width direction of the stroller, the second link connection part 520 is located at the inner side of the lower push rod 110, so that the lower push rod 110 can just shield the corresponding second link connection part 520 when viewed from the side, and the appearance of the stroller is more concise.

Further, in the width direction of the stroller, the second link 500, the lower push rod 110 and the first link 400 are sequentially arranged from inside to outside, and the front frame support 220 and the second link support 510, which are seat bars, are relatively located at the inner side of the entire frame, as seen from the position relationship between the front frame support 220 and the first link 400 and the front frame 210, so that the center of gravity of the stroller is more stable when the child sits; the lower push rod 110 is positioned at the outer side and the rear side of the seat post and can form a backrest post for supporting the back of the child; the first links 400 are further positioned at the left and right outer sides of the back rest lever to constitute grab bars for providing protection to the seated child.

The following specifically explains the folding principle of the stroller in this embodiment:

referring to fig. 4 to 6, when the stroller needs to be folded, the locking mechanism at the rotating joint 130 is unlocked first, and then the upper push rod 120 is driven to rotate forward and downward around the fifth axis line Q. The upper push rod 120 and the lower push rod 110 are further pushed down, so that the lower portion of the lower push rod 110 moves upward, and the second rear bracket 320 rotatably connected therewith is driven to slide upward along the first rear bracket 310, so that the rear bracket assembly 300 is shortened.

In the above process, the first link 400 rotatably connected to the lower push rod 110 rotates backward about the second axis line Y and is folded with the lower push rod 110. The rear frame assembly 300 and the front frame assembly 200 approach each other in the front-rear direction, and the linkage front frame support 220 and the second link support 510 are folded around the third axis Z, so that the seat post is folded, and the front-rear distance of the stroller is further reduced.

Referring to fig. 7, finally, the lower push rod 110 is completely rotated to be below the first axis X, and the front bracket 210, the rear bracket assembly 300, the first link 400, the lower push rod 110 and the upper push rod 120 are respectively rotated to extend in the up-down direction and are compactly folded together in the front-back direction. When the stroller is folded, the front supporter supporting portion 220 extends upward and rearward, and the second link supporting portion 510 extends downward and rearward. At this time, the upper push rod 120 and the lower push rod 110 are located behind the front wheel 610, the front wheel 610 is located outside the rear wheel 620 at a corresponding position, and the height of the upper push rod 120 is lower than the height of the third axis line Z. Therefore, the height of the baby stroller in a folded state is obviously reduced, the structure is flat, and the occupied space is small.

To sum up, the children's shallow that this embodiment provided, novel structure, folding convenience, folding back volume are littleer.

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

Claims

1. A stroller is provided with an unfolding state and a folding state and is characterized by comprising a push rod assembly, a front support assembly, a rear support assembly, a first connecting rod, a second connecting rod, a wheel assembly and a locking mechanism for locking the stroller in the unfolding state, wherein the rear support assembly comprises a first rear support and a second rear support, and the first rear support and the second rear support are mutually connected in a sliding manner; the wheel assemblies are arranged on the lower portion of the front support assembly and the lower portion of the second rear support respectively;

the first connecting rod is in pivot connection with the push rod assembly;

the front support component comprises a front support and a front support supporting part fixedly arranged at the upper part of the front support, the second connecting rod comprises a second connecting rod supporting part, and the second connecting rod supporting part is in pivot connection with the front support supporting part; when the stroller is in the unfolded state, the front support supporting part and the second connecting rod supporting part are used for supporting children.

2. The stroller of claim 1, wherein: the first connecting rod, the front support assembly and the first rear support are rotatably connected with each other around a second axis.

3. The stroller of claim 2, wherein: when the stroller is in the unfolded state, the front support is positioned at the outer side of the first rear support at the corresponding position in the width direction of the stroller.

4. The stroller of claim 2, wherein in the deployed state: in the width direction of the stroller, the front bracket is located at the outer side of the first rear bracket at the corresponding position, and the front bracket supporting part is located between the front bracket and the first rear bracket at the corresponding position.

5. The stroller of claim 1, wherein: when the child stroller is in an unfolded state, the extending direction of the front support supporting part is parallel to or coincided with the extending direction of the second connecting rod supporting part, so that the child stroller can be supported.

6. The stroller of claim 1, wherein: the second connecting rod comprises a second connecting rod connecting part fixedly connected with the second connecting rod supporting part, and the second connecting rod connecting part, the push rod assembly and the second rear support are rotationally connected with each other around the first axis.

7. The stroller of claim 1, wherein: the second connecting rod comprises a second connecting rod connecting part fixedly connected with the second connecting rod supporting part, the push rod assembly comprises a lower push rod, and the second connecting rod connecting part, the lower push rod and the second rear support are rotationally connected with each other around the first axis; when the stroller is in the unfolded state, the extending direction of the second connecting rod connecting part is parallel to the extending direction of the lower push rod.

8. The stroller of claim 7, wherein: when the stroller is in an unfolded state, the second connecting rod supporting part extends towards the rear lower part, and the extending direction of the second connecting rod supporting part and the extending direction of the second connecting rod connecting part form an acute angle.

9. The stroller of claim 1, wherein: when the stroller is in a folded state, the front support supporting part extends towards the rear upper side, and the second connecting rod supporting part extends towards the rear lower side.

10. The stroller of claim 9, wherein: the push rod assembly comprises an upper push rod and a lower push rod which is pivotally connected with the upper push rod, and the lower push rod is also pivotally connected with the second rear bracket and the first connecting rod respectively; the wheel assembly comprises a front wheel at the lower part of the front support assembly and a rear wheel at the lower part of the second rear support; the stroller is in a folded state: the upper push rod and the lower push rod are positioned behind the front wheel, the front wheel is positioned on the outer side of the rear wheel at the corresponding position, and the height of the upper push rod is lower than that of a rotating axis line between the second connecting rod supporting part and the front support supporting part.

11. The stroller of claim 1, wherein: push rod subassembly includes push down rod, push down rod respectively with the second after-poppet reaches first connecting rod pivot connection, children's shallow is when the expansion state: a rotating shaft center line between the lower push rod and the second rear support is positioned below a rotating shaft center line between the lower push rod and the first connecting rod; in the width direction of the stroller, the second connecting rod, the lower push rod and the first connecting rod are sequentially arranged from inside to outside, and the lower push rod is located on the outer side of the second rear support.

12. The stroller of claim 1, wherein: the upper part of the front bracket is pivotally connected with the lower part of the first connecting rod; the push rod assembly comprises a lower push rod, the upper part of the first connecting rod is pivoted with the lower push rod, and the lower part of the lower push rod is also pivoted with the second rear support;

the stroller is in a deployed state: the extension center line of the front bracket and the extension center line of the first connecting rod are positioned in the same vertical plane.

13. The stroller of claim 12, wherein: the stroller is in a deployed state: the extension line of the extension center line of the front bracket is superposed with the extension center line of the first connecting rod.