CN111619646B

CN111619646B - Child cart

Info

Publication number: CN111619646B
Application number: CN202010420628.2A
Authority: CN
Inventors: 李丰; 刘玉
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2024-11-29
Anticipated expiration: 2040-05-18
Also published as: CN111619646A

Abstract

The invention discloses a child stroller, wherein the stroller frame comprises a front bracket, a rear bracket, a push rod frame, a seat frame and a reversing connecting rod, wherein the upper part of the front bracket, the upper part of the rear bracket and the upper part of the push rod frame are rotatably connected to each other, the seat frame is rotatably connected between the front bracket and the rear bracket, the reversing connecting rod can be telescopically arranged along its own length direction, one end of the reversing connecting rod is rotatably connected to the push rod frame and the other end thereof can be relatively rotatable and relatively slidably connected to the rear bracket along the length direction of the rear bracket, when the stroller frame is in an unfolded state, the push rod frame flips forward and backward and when switching between a forward use state and a reverse use state, the reversing connecting rod switches between a shortened state and an extended state. The stroller frame has a simple structure, convenient reversing operation, and a compact structure and a small volume after folding.

Description

Child cart

Technical Field

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

Background

In order to meet the use requirement of users on bidirectional pushing of the trolley, various folding trolleys with reversible push rods exist in the market at present, however, the children trolley is mostly complex due to the fact that a push rod reversing mechanism is added, the complexity and the cost are also increased in the production and manufacturing process, the push rods are more troublesome to operate in reversing, the rods are more, and the children trolley is more convenient to use.

Disclosure of Invention

The invention aims to provide a child cart with a simple structure and convenient push rod reversing operation.

In order to achieve the aim, the technical scheme adopted by the invention is that the baby stroller comprises a stroller frame with an unfolding state and a folding state, a front wheel assembly and a rear wheel assembly which are arranged at the bottom of the stroller frame, and a locking mechanism for locking the stroller frame in the unfolding state, wherein the stroller frame comprises a front bracket, a rear bracket, a push rod bracket, a seat bracket and a reversing connecting rod, the upper part of the front bracket is rotationally connected with the upper part of the rear bracket, the lower part of the push rod bracket is rotationally connected with the upper part of the front bracket or the rear bracket, or the upper part of the front bracket, the upper part of the rear bracket and the upper part of the push rod bracket are mutually rotationally connected together,

The seat frame is arranged between the front support and the rear support, the reversing connecting rod can be arranged in a telescopic mode along the length direction of the seat frame, one end portion of the reversing connecting rod is rotationally connected to the push rod frame, the other end portion of the reversing connecting rod can rotate relative to the rear support and can slide relatively along the length extending direction of the rear support, in the unfolded state of the push rod frame, the push rod frame is in a forward using state and a reverse using state, when the push rod frame is in the forward using state, the push rod frame gradually extends upwards from front to back, the reversing connecting rod contracts, when the push rod frame is in the reverse using state, the push rod frame gradually extends upwards from back to front, and the reversing connecting rod extends.

Preferably, when the cart frame is in a folded state, the reversing link is shortened, the push rod frame is turned back to be folded at the rear side of the rear support, and the reversing link is folded between the rear support and the push rod frame.

Preferably, the front part of the seat frame is rotatably connected to the front bracket, the rear part of the seat frame is rotatably connected to a slider, the slider is relatively slidably disposed on the rear bracket along the length extension direction of the rear bracket, and the other end part of the reversing link is rotatably connected to the seat frame or rotatably connected to the slider.

Further, the reversing link rod extends in the up-down direction, the lower part of the reversing link rod is rotatably connected with the rear part of the seat frame, the upper part of the reversing link rod is rotatably connected to the push rod frame only, when the push rod frame is in a forward use state, the reversing link rod gradually extends upwards from front to back and is in a shortened state, and when the push rod frame is in a reverse use state, the reversing link rod gradually extends upwards from back to front and is in an extended state.

Further, the locking mechanism comprises a main locking mechanism arranged among the front bracket, the rear bracket and the seat frame and used for locking the front bracket, the rear bracket and the seat frame in a relatively unfolding state, and a reversing locking mechanism used for locking the reversing connecting rod in an extending state or a shortening state, wherein the top end of the reversing connecting rod is provided with an unlocking button used for unlocking the reversing locking mechanism.

Further, the reversing connecting rod comprises a first rod and a second rod which are in sliding telescopic connection relatively, the first rod is in rotary connection with the push rod frame, the second rod is in rotary connection with the seat frame or the sliding piece, and the locking mechanism at least comprises a reversing locking mechanism for locking the first rod and the second rod relatively.

Further, when the push rod frame is in a forward use state, one of the first rod or the second rod after the reversing link is in a shortened state is supported between the seat frame and the push rod frame, and when the push rod frame is in a reverse use state, the first rod and the second rod after the reversing link is in an extended state are jointly supported between the seat frame and the push rod frame.

Still further, the second pole is slidingly sleeved outside the first pole, the reversing locking mechanism comprises a locking rod arranged in a rod cavity of the first pole, the locking rod is provided with a connecting end and a locking end which are respectively arranged at two ends in the length direction of the locking rod, the connecting end is rotationally connected to the first pole around a rotating shaft, a locking boss is arranged on the locking end, the locking boss penetrates out of the first pole, the second pole is provided with a locking hole for correspondingly and cooperatively inserting the locking boss, the locking hole is provided with at least two groups which are arranged at intervals along the length direction of the second pole, when the reversing locking mechanism is switched from a locking state to an unlocking state, the locking rod swings around the rotating shaft and the locking boss is separated from the locking hole, and the reversing connecting rod is also provided with an unlocking component for driving the reversing locking mechanism to unlock.

As a preferred implementation mode, the unlocking component comprises an unlocking button slidingly arranged at the connecting end, a guide pin is arranged on the unlocking button, a guide groove is formed in the locking rod, the extending direction of the guide groove and the length direction of the first rod are inclined, the guide pin is slidingly inserted into the guide groove in a matched manner, and the unlocking component further comprises an elastic piece arranged in a rod cavity of the first rod and used for providing elastic restoring force required by sliding reset of the unlocking button along the sliding direction.

Preferably, the upper part of the front bracket, the upper part of the rear bracket and the lower part of the push rod frame are rotatably connected together around the same rotation center line, when the push rod frame is in a forward use state, the push rod frame and the front bracket extend along the same length direction, and when the push rod frame is in a reverse use state, the push rod frame and the rear bracket extend along the same length direction.

Compared with the prior art, the child stroller has the advantages that the telescopic reversing connecting rod is arranged between the frame main body and the push rod frame, so that the push rod frame can be turned back and forth to realize reversing, and the reversing connecting rod is simultaneously supported between the frame main body and the push rod frame to achieve a connecting and supporting effect. The trolley frame is simple in structure, convenient to reverse and operate, compact in structure and small in size after being folded.

Drawings

FIG. 1 is a perspective view of a stroller in an unfolded state according to embodiment 1 of the present invention, wherein a stroller frame is in a forward use state;

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

FIG. 3 is a perspective view of the stroller in the unfolded state of embodiment 1, with the stroller frame in the inverted use state;

FIG. 4 is a side view of FIG. 3;

FIG. 5 is a side view of the reversing link of the stroller of example 1 in a shortened condition;

FIG. 6 is a schematic longitudinal cross-sectional view of the reversing link of FIG. 5;

FIG. 7 is a side view of the reversing link of the stroller of example 1 in an extended position;

FIG. 8 is a schematic longitudinal cross-sectional view of the reversing link of FIG. 7;

FIG. 9 is a side view of the stroller frame of example 1 of the present invention during folding;

FIG. 10 is a side view of the stroller frame of embodiment 1 of the present invention in a folded condition;

FIG. 11 is a side view schematically showing a developed state of a cart frame according to embodiment 2 of the present invention;

FIG. 12 is a side view schematically showing a folded state of a cart frame according to embodiment 2 of the present invention;

FIG. 13 is a side view schematically showing a developed state of a cart frame according to embodiment 3 of the present invention;

FIG. 14 is a side view schematically showing a folded state of a cart frame according to embodiment 3 of the present invention;

FIG. 15 is a side view schematically showing a developed state of a cart frame according to embodiment 4 of the present invention;

FIG. 16 is a side view schematically showing a folded state of a cart frame according to embodiment 4 of the present invention;

FIG. 17 is a side view schematically showing a developed state of a cart frame according to embodiment 5 of the present invention;

FIG. 18 is a side view schematically showing a folded state of a cart frame according to embodiment 5 of the present invention;

FIG. 19 is a side view schematically showing a developed state of a cart frame according to embodiment 6 of the present invention;

FIG. 20 is a side view schematically showing a folded state of a cart frame according to embodiment 6 of the present invention;

FIG. 21 is a side view schematically showing a developed state of a cart frame according to embodiment 7 of the present invention;

FIG. 22 is a side view schematically showing a folded state of a cart frame according to embodiment 7 of the present invention;

Wherein 1, front bracket, 11, front strut, 12, front cross bar, 2, rear bracket, 21, rear strut, 22, rear cross bar, 3, push rod rack, 31, lower push rod, 32, upper push rod, 33, push rod locking piece, 4, seat rack, 5, reversing link, 51, first rod, 52, second rod, 521, lock hole, 53, unlocking button, 531, chute, 54, rotation shaft, 55, locking rod, 551, guide slot, 552, locking boss, 56, guide pin, 57, elastic piece, 58, sliding end plug, 59, limiting end plug, 6, slider (sliding sleeve), 7, back rack, 8, armrest rack, 9, unlocking knob, 10, front wheel assembly, 20, rear wheel assembly, 101, first shaft, 102, second shaft, 103, third shaft, 104, fourth shaft.

Detailed Description

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

Example 1

Referring to fig. 1 to 10, a stroller comprises a stroller frame having an unfolded state and a folded state, a front wheel assembly 10 and a rear wheel assembly 20 provided at the bottom of the stroller frame, and a locking mechanism for locking the stroller frame in the unfolded state.

The trolley frame comprises a front bracket 1, a rear bracket 2, a push rod bracket 3, a seat bracket 4 and a reversing connecting rod 5, wherein the upper part of the front bracket 1 is rotationally connected with the upper part of the rear bracket 2, the lower part of the push rod bracket 3 is rotationally connected with the upper part of the front bracket 1 or the upper part of the rear bracket 2, or the upper part of the front bracket 1, the upper part of the rear bracket 2 and the lower part of the push rod bracket 3 are mutually rotationally connected together. The seat frame 4 is rotatably arranged between the front bracket 1 and the rear bracket 2, so that stable support can be formed among the front bracket 1, the rear bracket 2 and the seat frame 4 in the unfolded state of the cart frame, and the seat frame 4 can be rotated and folded relative to the front bracket 1 and the rear bracket 2 in the folded state of the cart frame.

The reversing link 5 is telescopically disposed along the longitudinal direction thereof, one end portion of the reversing link 5 is rotatably connected to the push rod frame 3, and the other end portion thereof is slidably disposed along the longitudinal extending direction of the rear bracket 2 while being rotatable relative to the rear bracket 2, so that the reversing link 5 can slide along the rear bracket 2 and be folded between the rear bracket 2 and the push rod frame 3 when the stroller frame is folded. In the unfolded state of the trolley frame, the push rod frame 3 has a forward use state shown in fig. 1 and 2 and a reverse use state shown in fig. 3 and 4, in the forward use state, the push rod frame 3 gradually and upwards extends from front to back, the reversing connecting rod 5 is in a shortened state and is in a shorter length, and in the reverse use state, the push rod frame 3 gradually and upwards extends from back to front, and the reversing connecting rod 5 is in an extended state and is in a longer length.

In this embodiment, the front part of the seat frame 4 is rotatably connected to the front bracket 1, and the rear part of the seat frame 4 is connected to the rear bracket 2 so as to be capable of both relative rotation and relative sliding along the length direction of the rear bracket 2, specifically, a sliding member 6 is rotatably connected to the rear part of the seat frame 4, and the sliding member 6 is provided on the rear bracket 2 so as to slide up and down along the length extending direction of the rear bracket 2. One end of the reversing link 5 is rotatably connected to the push rod frame 3 and the other end thereof is rotatably connected to the seat frame 4, so that it is connected to the rear bracket 2 both rotatably and slidably.

Referring to the drawings, in the present embodiment, the upper part of the front bracket 1, the upper part of the rear bracket 2, and the lower part of the push rod bracket 3 are rotatably coupled together about the same rotation center line. Specifically, the front bracket 1 has two front struts 11 respectively arranged on the left and right sides and a front cross bar 12 fixedly connected between the lower parts of the two front struts 11, and the rear bracket 2 has two rear struts 21 respectively arranged on the left and right sides and a rear cross bar 22 fixedly connected between the lower parts of the two rear struts 21. The front wheel assemblies 10 are provided at the lower portions of the front struts 11 on each side, and the rear wheel assemblies 20 are provided at the lower portions of the rear struts 21 on each side. The push rod frame 3 has push rods respectively arranged at the left side and the right side, each push rod comprises a lower push rod 31, an upper push rod 32 with the lower part rotationally connected with the upper part of the lower push rod 31, and a push rod locking piece 33 is further arranged at the rotational connection part between the upper push rod 32 and the lower push rod 31. The reversing link 5 has two groups provided on the left and right sides, and is connected between the push down rod 31 and the seat frame 4 on the corresponding sides, respectively. The upper part of the front strut 11, the upper part of the rear strut 21 and the lower part of the lower push rod 31 are rotatably connected together around the same rotation center line on the left and right sides of the cart frame.

The back of the seat frame 4 is also rotatably connected with a backrest frame 7, and the seat frame 4 and the backrest frame 7 are positioned between two groups of front supporting rods 11, rear supporting rods 21, push rods and reversing connecting rods 5 along the left-right direction. The trolley frame is also provided with an armrest frame 8, the armrest frame 8 is a U-shaped rod with an opening facing backwards, and the rear end part of the armrest frame is also connected with a front support rod 11 on the corresponding side in a rotating way around the rotation center line. The slider 6 is a slide bush slidably provided on the rear strut 21, and the slide bush is relatively slidably provided on the rear strut 21 in the up-down direction.

Referring to fig. 1 to 4, the reversing link 5 extends in the up-down direction, a lower portion of the reversing link 5 is rotatably connected to a rear portion of the seat frame 4, and an upper portion of the reversing link 5 is rotatably connected to the push down rod 31. When the push rod rest 3 is in a forward use state, as shown in fig. 1 and 2, the reversing link 5 gradually extends upwards from front to back, and when the push rod rest 3 is in a reverse use state, the reversing link 5 gradually extends upwards from back to front, as shown in fig. 3 and 4.

The locking mechanism includes a main locking mechanism provided between the front bracket 1, the rear bracket 2 and the seat frame 4 for locking the three in a relatively unfolded state, and a reversing locking mechanism for locking the reversing link 5 in an extended state or a shortened state. In this embodiment, the main locking mechanism is a locking member (not shown) disposed between the sliding member 6 and the rear strut 21 of the rear bracket 2 for locking the two relative to each other, so that after the main locking mechanism locks, the front bracket 1, the rear bracket 2 and the seat frame 4 are locked relative to each other, and the frame body is in a stable unfolded state, and an operator can directly flip the push rod frame 3 back and forth to switch the push rod frame 3 between a forward use state and a reverse use state.

Referring to fig. 5 to 8, the reversing link 5 includes a first rod 51 and a second rod 52 which are slidably and telescopically coupled with each other, the first rod 51 is rotatably coupled with the lower push rod 31 of the push rod frame 3, and the second rod 52 is rotatably coupled with the seat frame 4, where the second rod 52 is slidably sleeved outside the first rod 51. The reversing locking mechanism includes a locking lever 55 provided in a lever cavity of the first lever 51, the locking lever 55 having a connecting end and a locking end which are provided separately at both end portions in a longitudinal direction thereof, where the connecting end is specifically an upper end of the locking lever 55, and the locking end is specifically a lower end of the locking lever 55. The connection end is rotatably connected to the first lever 51 by a rotation shaft 54, and a locking boss 552 is provided on the locking end.

The locking boss 552 passes through the rod cavity of the first rod 51, and the second rod 52 has a locking hole 521 for the locking boss 552 to be correspondingly inserted, and the locking hole 521 has at least two groups of locking holes which are arranged at intervals along the length direction of the second rod 52, and the two groups of locking holes are specifically arranged for locking when the reversing connecting rod 5 is stretched and shortened. When the reversing locking mechanism is in a locked state, the locking boss 552 is inserted into one of the locking holes 521 correspondingly. When the reversing locking mechanism is switched from the locked state to the unlocked state, the locking rod 55 swings around the rotating shaft 54 to disengage from the locking boss 552 and the self-locking hole 521, so that the first rod 51 and the second rod 52 can slide relatively to realize expansion and contraction.

The reversing connecting rod 5 is further provided with an unlocking component for driving the reversing locking mechanism to unlock, the unlocking component specifically comprises an unlocking button 53 which is slidably arranged at the connecting end, the unlocking button 53 is provided with a guide pin 56, the locking rod 55 is provided with a guide groove 551, the extending direction of the guide groove 551 and the length extending direction of the first rod 51 are inclined to each other, the guide groove 551 is inserted into the guide groove 551 in a sliding fit manner, when the unlocking button 53 is pressed, the guide pin 56 moves downwards along the guide groove 551, and then the locking rod 55 is driven to swing around the rotating shaft 54 so as to enable the locking boss 552 to be separated from the lock hole 521, and unlocking of the reversing locking mechanism is realized. The unlocking assembly further comprises an elastic member 57, here embodied as a return spring, provided in the rod cavity of the first rod 51 for providing an elastic restoring force required for sliding the unlocking button 53 in the sliding direction.

Referring to fig. 5 to 8, in the reversing link 5, the lower end of the first rod 51 is also fixedly provided with a sliding end plug 58, and the sliding end plug 58 is slidably fitted in the rod cavity of the second rod 52. The upper portion of the second rod 52 is fixedly provided with a stopper 59 to restrict the sliding end cap 58 from sliding out. The outer diameter of the upper end of the first rod 51 is larger than the outer diameter of the rod cavity of the second rod 52, and the outer diameter of the upper end is the same as the outer diameter of the second rod 52, so that when the first rod 51 and the second rod 52 are relatively contracted, the outer diameters of the first rod 51 and the second rod 52 are the same, and the surface looks flat. The unlocking button 53 is provided on the upper end portion of the first lever 51, and the sliding direction thereof coincides with the length extending direction of the first lever 51.

In this embodiment, an unlocking knob 9 is further provided on the top of the push rod frame 3, and the unlocking knob 9 is used for unlocking the push rod locking pieces 33 on both sides, and here, the push rod locking pieces 33 are provided in a manner of interlocking with the main locking mechanism.

In summary, when the cart frame is in the unfolded state, the front bracket 1, the rear bracket 2, the seat frame 4, the backrest frame 7 and the armrest frame 8 are unfolded relatively, the push rod frame 3 is unfolded relatively to be in the forward use state or the reverse use state, in the forward use state, the push rod frame 3 and the front bracket 1 extend along the same length direction, the reversing connecting rod 5 is in the shortened state as shown in fig. 1 and 2, when the cart frame is required to be reversed, namely, the cart frame is required to be converted into the reverse use state, the unlocking button 53 is pressed to unlock the reversing connecting rod 5, then the push rod frame 3 is turned forwards, the reversing connecting rod 5 is converted into the extended state, and the push rod frame 3 and the rear bracket 2 extend along the same length direction as shown in fig. 3 and 4.

When the cart frame needs to be folded, the push rod frame 3 needs to be converted into a forward use state, and the backrest frame 7 rotates and is folded together relative to the seat frame 4. Then, the operator holds the unlocking knob 9 to unlock the locking mechanism, as shown in fig. 9, then presses the push rod 32 downwards to rotate and fold the push rod relative to the push rod 31, the push rod 31 turns backwards relative to the rear bracket 2, the rear part of the seat frame 4 is driven by the reversing connecting rod 5 to descend, and the sliding piece 6 is driven to slide downwards along the rear bracket 2, and the front bracket 1, the rear bracket 2 and the seat frame 4 rotate relatively to be gradually folded. Finally, the structure shown in fig. 10 is formed, and the rods are tightly folded together to form a very compact structure.

Example 2

Referring to fig. 11 and 12, the difference between the present embodiment and embodiment 1 is mainly that in the present embodiment, the upper portion of the front bracket 1 and the upper portion of the rear bracket 2 are rotatably connected by a first shaft 101, and the lower portion of the push rod bracket 3 is rotatably connected to the upper portion of the rear bracket 2 by a second shaft 102, and the second shaft 102 is located above the first shaft 101 on the rear bracket 2.

Example 3

Referring to fig. 13 and 14, the difference between the present embodiment and the embodiment 2 is mainly that in the present embodiment, the upper portion of the front bracket 1 and the upper portion of the rear bracket 2 are rotatably connected by a first shaft 101, and the lower portion of the push rod bracket 3 is rotatably connected to the upper portion of the rear bracket 2 by a second shaft 102, and the second shaft 102 is located below the first shaft 101 on the rear bracket 2.

Example 4

Referring to fig. 15 and 16, the difference between the present embodiment and embodiment 2 is mainly that in the present embodiment, the rear end portion of the seat frame 4 is rotatably connected to the slider 6, the lower end portion of the reversing link 5 is also rotatably connected to the slider 6, and the reversing link 5 and the seat frame 4 are rotatably connected to the slider 6 through the same rotation shaft. The folding function of the cart frame and the reversing function of the push rod frame 3 can be realized, the reversing operation is convenient, and the folded cart frame is compact and has smaller volume.

Example 5

Referring to fig. 17 and 18, the difference between the present embodiment and embodiment 1 is mainly that in the present embodiment, the upper portion of the front bracket 1 and the upper portion of the rear bracket 2 are rotatably connected by a third shaft 103, and the lower portion of the push rod bracket 3 is rotatably connected to the upper portion of the front bracket 1 by a fourth shaft 104, and the fourth shaft 104 is located below the third shaft 103 on the front bracket 1.

Example 6

Referring to fig. 19 and 20, the difference between the present embodiment and embodiment 1 is mainly that in the present embodiment, the upper portion of the front bracket 1 and the upper portion of the rear bracket 2 are rotatably connected by a third shaft 103, and the lower portion of the push rod bracket 3 is rotatably connected to the upper portion of the front bracket 1 by a fourth shaft 104, and the fourth shaft 104 is located above the third shaft 103 on the front bracket 1.

Example 7

Referring to fig. 15 and 16, the difference between the present embodiment and embodiment 6 is mainly that in the present embodiment, the rear end portion of the seat frame 4 is rotatably connected to the slider 6, the lower end portion of the reversing link 5 is also rotatably connected to the slider 6, and the reversing link 5 and the seat frame 4 are rotatably connected to the slider 6 through the same rotation shaft. The folding function of the cart frame and the reversing function of the push rod frame 3 can be realized, the reversing operation is convenient, and the folded cart frame is compact and has smaller volume.

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

Claims

1. The baby stroller comprises a stroller frame with an unfolding state and a folding state, a front wheel assembly and a rear wheel assembly which are arranged at the bottom of the stroller frame, and a locking mechanism for locking the stroller frame in the unfolding state, and is characterized in that the stroller frame comprises a front bracket, a rear bracket, a push rod bracket, a seat bracket and a reversing connecting rod, wherein the upper part of the front bracket is rotationally connected with the upper part of the rear bracket, the lower part of the push rod bracket is rotationally connected with the upper part of the front bracket or the rear bracket, or the upper part of the front bracket, the upper part of the rear bracket and the upper part of the push rod bracket are mutually rotationally connected together,

The front part of the seat frame is rotationally connected with the front bracket, the rear part of the seat frame is rotationally connected with a sliding part, the sliding part is relatively slidably arranged on the rear bracket along the length extending direction of the rear bracket, the reversing connecting rod comprises a first rod and a second rod which are relatively slidably and telescopically connected, the first rod is rotationally connected with the push rod frame, the second rod is rotationally connected with the seat frame or the sliding part, the locking mechanism at least comprises a reversing locking mechanism for relatively locking the first rod and the second rod,

The push rod frame is in a forward use state and a reverse use state, when the push rod frame is in the forward use state, the push rod frame gradually and upwards inclines and extends from front to back, one of the first rod or the second rod after the reversing connecting rod is in a shortened state is supported between the seat frame and the push rod frame, when the push rod frame is in the reverse use state, the push rod frame gradually and upwards inclines and extends from back to front, and the first rod and the second rod after the reversing connecting rod is in an extended state are jointly supported between the seat frame and the push rod frame.

2. The stroller of claim 1, wherein the reversing link is shortened when the stroller frame is in a collapsed condition, the stroller frame is flipped backward to be folded back to the rear side of the rear frame, and the reversing link is folded between the rear frame and the stroller frame.

3. The stroller of claim 1, wherein the reversing link extends in an up-down direction, a lower portion of the reversing link is rotatably coupled to a rear portion of the seat frame, and an upper portion of the reversing link is rotatably coupled only to the push rod frame, the reversing link gradually extends obliquely upward from front to rear and is in a shortened state when the push rod frame is in a forward use state, and the reversing link gradually extends obliquely upward from rear to front and is in an extended state when the push rod frame is in a reverse use state.

4. The stroller of claim 1, wherein the locking mechanism comprises a main locking mechanism arranged among the front bracket, the rear bracket and the seat frame and used for locking the front bracket, the rear bracket and the seat frame in a relatively unfolded state, and a reversing locking mechanism used for locking the reversing connecting rod in an extended state or a shortened state, and an unlocking button used for unlocking the reversing locking mechanism is arranged at the top end of the reversing connecting rod.

5. The stroller of claim 1, wherein the second rod is slidably sleeved on the outer side of the first rod, the reversing locking mechanism comprises a locking rod arranged in a rod cavity of the first rod, the locking rod is provided with a connecting end and a locking end which are respectively arranged at two ends in the length direction of the locking rod, the connecting end is rotationally connected to the first rod around a rotating shaft, the locking end is provided with a locking boss, the locking boss penetrates out of the first rod, the second rod is provided with locking holes for correspondingly and cooperatively inserting the locking boss, the locking holes are at least provided with two groups arranged at intervals along the length direction of the second rod, when the reversing locking mechanism is switched from a locking state to an unlocking state, the locking rod swings around the rotating shaft and the locking boss is separated from the locking holes, and the reversing connecting rod is further provided with an unlocking component for driving the reversing locking mechanism to unlock.

6. The stroller of claim 5, wherein the unlocking assembly comprises an unlocking button slidably disposed at the connecting end, a guide pin is disposed on the unlocking button, a guide groove is formed in the locking rod, the extending direction of the guide groove is inclined to the length direction of the first rod, the guide pin is slidably inserted into the guide groove, and the unlocking assembly further comprises an elastic member disposed in a rod cavity of the first rod and used for providing elastic restoring force required by sliding return of the unlocking button along the sliding direction.

7. The stroller of claim 1, wherein the upper portion of the front frame, the upper portion of the rear frame, and the lower portion of the push rod rest are rotatably coupled together about a common rotation center line, wherein the push rod rest and the front frame extend in a common length direction when the push rod rest is in a forward use state, and wherein the push rod rest and the rear frame extend in a common length direction when the push rod rest is in a reverse use state.