CN211844589U

CN211844589U - Baby carriage framework and baby carriage

Info

Publication number: CN211844589U
Application number: CN201922131681.6U
Authority: CN
Inventors: 严思建; 曾祖岸; 李萱棉; 叶广德; 范丽
Original assignee: Zhongshan Shaoxiawang Plastic Products Co ltd
Current assignee: Zhongshan Shaoxiawang Plastic Products Co ltd
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-11-03
Anticipated expiration: 2029-12-02

Abstract

The utility model discloses a bassinet skeleton and children's shallow, wherein, the bassinet skeleton includes the handrail frame, locking mechanical system, side bearer and cross-brace frame, the handrail frame is including rotating two bar connections, locking mechanical system sets up on the handrail frame, can restrict the relative rotation of two bar connections through locking mechanical system, the side bearer sets up to two sets of and can fold, the left and right sides of handrail frame is located to two sets of side bearer branches, one of them group side bearer rotates with one of them bar connection, another group side bearer rotates with another bar connection, cross-brace frame connects between two sets of side bearers, cross-brace frame sets up to scalable structure. Through above-mentioned structure, the side bearer can be folded, and the cross bearer can be folded through flexible mode, and the handrail frame is folded through the pivoted mode to can reduce bassinet skeleton and children's shallow width after folding, be convenient for accomodate and carry.

Description

Baby carriage framework and baby carriage

Technical Field

The utility model relates to an infant and children's articles for use field, in particular to children's shallow.

Background

The baby stroller is a common baby appliance, can be used for a baby to sit and lie and is pushed by a guardian to walk, so that the baby can go out conveniently, and the burden of the guardian is reduced. In order to facilitate storage and carrying, part of the stroller is designed to be foldable, and some foldable strollers can only be folded back and forth in a rotating mode generally, and the width of the stroller after being folded is still large, so that more space needs to be occupied, and inconvenience is brought to storage and carrying.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve one of the technical problem that exists among the prior art at least, provide the bassinet skeleton, can reduce the width after folding, be convenient for accomodate and carry.

The utility model discloses still provide the children's shallow that has above-mentioned bassinet skeleton.

According to a first aspect of the present invention, there is provided a stroller frame comprising a handle frame comprising two handle bars rotatably connected; the locking mechanism is arranged on the handrail frame and can limit the relative rotation of the two handrail rods; the foldable two groups of side frames are respectively arranged at the left side and the right side of the handrail frame, one group of side frames is rotationally connected with one handrail rod, and the other group of side frames is rotationally connected with the other handrail rod; and the cross-bracing frames are connected between the two groups of side frames and are arranged into telescopic structures.

The beneficial effect that above-mentioned scheme has: through above-mentioned structure, the side bearer can be folded, and the cross brace can be folded through flexible mode, and the handrail frame is folded through the pivoted mode to can reduce the width of bassinet skeleton after folding, be convenient for accomodate and carry.

According to the utility model discloses first aspect bassinet skeleton, locking mechanical system include briquetting and first elastic component, two all be provided with the spacing groove on the bar, the briquetting is inserted simultaneously and is located two on the bar the spacing groove, first elastic component is located one the bottom surface of spacing groove with between the briquetting.

According to the utility model discloses first aspect bassinet skeleton, locking mechanical system still includes the gland, be provided with the pothook on the gland, one of them be provided with on the bar with the spacing hole that the spacing groove is linked together, the pothook passes spacing hole and stretch into to the spacing inslot, the gland with first elastic component is located separately the both sides of briquetting.

According to the framework of the baby carriage in the first aspect of the present invention, the cross-brace comprises two cross-brace tubes, wherein the end of one of the cross-brace tubes is provided with an installation block, and the other cross-brace tube is slidably inserted into the installation block; or the two cross-brace pipes of the cross-brace frame are sleeved with each other.

According to the stroller frame of the first aspect of the present invention, the side frame comprises a first transmission rod, a second transmission rod, a telescopic rod, a first wheel carrier, a second wheel carrier and a seat frame; one end of the first transmission rod, one end of the second transmission rod and one end of the telescopic rod are rotatably connected through a first pivot, the other end of the second transmission rod, the first wheel carrier and the second wheel carrier are rotatably connected through a second pivot, and the other end of the telescopic rod is rotatably connected with the first wheel carrier through a third pivot, so that the second transmission rod, the first wheel carrier and the telescopic rod form a first connection rod structure; the side frame is provided with a first locking mechanism and a second locking mechanism which can be unlocked, the first locking mechanism can limit the relative rotation of the first transmission rod and the telescopic rod, the second locking mechanism can limit the extension and retraction of the telescopic rod, the first locking mechanism can be unlocked when the grab bar rotates, and the second locking mechanism can be unlocked when the first transmission rod rotates; the seat frame is connected with the first connecting rod structure through a second connecting rod structure, and the first wheel frame and the second wheel frame are connected with the second connecting rod structure through a third connecting rod structure.

According to the utility model discloses the bassinet skeleton of first aspect, be provided with first member on the side bearer, the one end of first member with the seat frame rotates to be connected, the other end of first member passes through the second pivot with first wheel carrier rotates to be connected, the seat frame with the telescopic link rotates to be connected, so that the telescopic link the seat frame first member and first wheel carrier forms second connecting rod structure.

According to the utility model discloses the first aspect bassinet skeleton, be provided with second member, third member and fourth member on the side bearer, the one end of second member with the middle part of first member is rotated and is connected, the other end of second member with the one end of third member is rotated and is connected, the middle part of third member with first wheel carrier is rotated and is connected, the other end of third member with the one end of fourth member is rotated and is connected, the other end of fourth member with the second wheel carrier is rotated and is connected, so that first member the second member the third member the fourth member first wheel carrier and the second wheel carrier forms third link structure.

According to the stroller frame of the first aspect of the present invention, the first locking mechanism comprises a first pull rope, a limiting block, a second elastic member and a first locking block; the limiting block, the second elastic component and first locking piece arrange in proper order on the first drive lever, the limiting block with first drive lever fixed connection, first locking piece slides and inserts and locates on the first drive lever, first stay cord is connected the bar with first locking piece, be provided with on the telescopic link with first locking hole of first locking piece matched with.

According to the stroller frame of the first aspect of the present invention, the telescopic rod comprises an outer tube and an inner tube inserted into the outer tube, and the second locking mechanism comprises a locking tube, a third elastic member, a first lock pin, a second lock block, a third lock block, a second pull rope, a shifting block, and a second lock pin; the locking pipe is inserted in the inner pipe, a first guide groove and a limiting part are arranged on the locking pipe, the second locking block is slidably arranged in the locking pipe, a second guide groove with an included angle with the first guide groove is arranged on the second locking block, the third elastic piece is arranged between the second locking block and the limiting part, the third locking block is slidably arranged on the second locking block, the first locking pin is arranged on the third locking block, the first locking pin is inserted in the first guide groove and the second guide groove, a second locking hole matched with the third locking block is arranged on the outer pipe, the shifting block is slidably arranged on the inner pipe, the second pull rope is connected with the shifting block and the second locking block, and a third guide groove which is arranged around the first pivot and is arc-shaped is arranged on the first transmission rod, the distance between the third guide groove and the first pivot gradually increases or decreases along the clockwise direction, the second lock pin is arranged on the shifting block, and the second lock pin is inserted in the third guide groove.

According to a second aspect of the present invention, there is provided a stroller comprising a stroller frame as described above.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples;

FIG. 1 is a block diagram of an embodiment of a stroller frame;

FIG. 2 is a cross-sectional view of an embodiment of the stroller frame;

FIG. 3 is another cross-sectional view of an embodiment of the stroller frame;

fig. 4 is an enlarged view of a portion a in fig. 3;

fig. 5 is an enlarged view of a portion B in fig. 3;

FIG. 6 is an exploded view of an embodiment of the stroller frame;

FIG. 7 is a block diagram of an armrest frame and a first transfer lever in an embodiment of a stroller frame;

FIG. 8 is an exploded view of an armrest frame in the stroller frame embodiment;

FIG. 9 is an exploded view of the telescoping rod in the stroller frame embodiment;

FIG. 10 is a block diagram of a first transfer lever in an embodiment of the stroller frame;

FIG. 11 is a block diagram of an embodiment of the stroller frame during folding;

FIG. 12 is a view of the folded embodiment of the stroller frame;

fig. 13 is a block diagram of another perspective of the folded stroller frame embodiment.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the terms greater than, less than, exceeding, etc. are understood to exclude the number, and the terms above, below, inside, etc. are understood to include the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 13, a stroller frame according to an embodiment of the present invention includes an armrest frame 10, a locking mechanism, a side frame, and a cross-frame 40. The handrail frame 10 comprises two handrail rods 11 which are rotatably connected through a pivot, a locking mechanism is arranged on the handrail frame 10, the relative rotation of the two handrail rods 11 can be limited through the locking mechanism, two groups of side frames are arranged and can be folded, the two groups of side frames are respectively arranged at the left side and the right side of the handrail frame 10, one group of side frames is rotatably connected with one handrail rod 11 through the pivot, and the other group of side frames is rotatably connected with the other handrail through the pivot rod. The cross-frame 40 is connected between the two sets of side frames, and the cross-frame 40 is arranged into a telescopic structure.

Through above-mentioned structure, the side bearer can be folded, and cross-brace frame 40 can be folded through flexible mode, and handrail frame 10 is folded through the pivoted mode to can reduce the width of bassinet skeleton after folding, be convenient for accomodate and carry.

Specifically, referring to fig. 8, the locking mechanism includes a pressing block 21 and a first elastic member (not shown), and a limiting groove 111 is formed in each of the two grab bars 11. During assembly, the pressing block 21 is simultaneously inserted into the limiting grooves 111 on the two grab rails 11, the first elastic member is located between the bottom surface of one of the limiting grooves 111 and the pressing block 21, and at the moment, the two grab rails 11 can be locked to limit the relative rotation of the two grab rails 11. By pushing the press block 21, the press block 21 moves to be separated from one of the limit grooves 111, the locking mechanism can be unlocked, and the two grab bars 11 can rotate relatively. The pressing block 21 is sleeved on the pivot between the two grab rails 11, and the outline of the pressing block 21 can be set to be non-circular; or the center of the pressing piece 21 is offset from the axis of the pivot between the grab bar 11.

In some embodiments, the pressing block 21 may not be sleeved on the pivot between the two grab bars 11.

The locking mechanism further comprises a gland 23, a clamping hook 231 is arranged on the gland 23, a limiting hole 112 communicated with the limiting groove 111 is formed in the grab bar 11, the clamping hook 231 penetrates through the limiting hole 112 and extends into the limiting groove 111, and the gland 23 and the first elastic piece are respectively arranged on two sides of the pressing block 21. When the pressing cover 23 is pressed, the pressing piece 21 can be pushed by the pressing cover 23 to move, so that the locking mechanism is unlocked.

In some embodiments, the locking mechanism may be provided as a knob screwed to one of the grab bars 11, and a socket offset from the axis of the pivot between the grab bars 11 is provided in the other grab bar 11, and the knob may be inserted into or removed from the socket by rotating the knob. In addition, the locking mechanism can also be arranged into a structure such as a lock catch.

Referring to fig. 1 and 6, the cross-frames 40 are provided in four, each cross-frame 40 comprising two cross-brace tubes 41. Of the two cross-frames 40, the two cross-struts of the cross-frame 40 are nested with each other to form a telescopic structure. In the other two cross-frames 40, the end of one cross-support tube 41 of the cross-frames 40 is provided with a mounting block 42, and the other cross-support tube 41 is slidably inserted into the mounting block 42 to form a telescopic structure.

Of course, in practice, the number of cross-frames 40 may be adjusted as desired. The number of the cross-frames 40 can be adjusted according to the situation.

The side frame includes a first transmission lever 31, a second transmission lever 32, an expansion lever 33, a first wheel frame 34, a second wheel frame 35, and a seat frame 36. One end of the first transmission rod 31, one end of the second transmission rod 32 and one end of the telescopic rod 33 are rotatably connected by a first pivot (not shown in the figure), the other end of the second transmission rod 32, the first wheel frame 34 and the second wheel frame 35 are rotatably connected by a second pivot (not shown in the figure), and the other end of the telescopic rod 33 is rotatably connected with the first wheel frame 34 by a third pivot, so that the second transmission rod 32, the first wheel frame 34 and the telescopic rod 33 form a first link structure. The side frame is provided with a first locking mechanism and a second locking mechanism which can be unlocked, the first locking mechanism can limit the relative rotation of the first transmission rod 31 and the telescopic rod 33, and the second locking mechanism can limit the extension of the telescopic rod 33. The rotation of the grab bar 11 unlocks the first locking mechanism, and the rotation of the first transmission lever 31 unlocks the second locking mechanism. The seat frame 36 is connected to the first link structure by a second link structure and the first wheel carrier 34 and the second wheel carrier 35 are connected to the second link structure by a third link structure.

Specifically, a first rod 371 is disposed on the side frame, one end of the first rod 371 is pivotally connected to the seat frame 36, the other end of the first rod 371 is pivotally connected to the first wheel frame 34 via a second pivot, and the seat frame 36 is pivotally connected to the telescopic rod 33, so that the telescopic rod 33, the seat frame 36, the first rod 371, and the first wheel frame 34 form the second link structure.

A second rod 372, a third rod 373, and a fourth rod 374 are disposed on the side frames, one end of the second rod 372 is pivotally connected to the middle of the first rod 371, the other end of the second rod 372 is pivotally connected to one end of the third rod 373, the middle of the third rod 373 is pivotally connected to the first wheel carrier 34, the other end of the third rod 373 is pivotally connected to one end of the fourth rod 374, and the other end of the fourth rod 374 is pivotally connected to the second wheel carrier 35, such that the first rod 371, the second rod 372, the third rod 373, the fourth rod 374, the first wheel carrier 34, and the second wheel carrier 35 form the third link structure.

When the baby carriage framework is folded, the first locking mechanism can be unlocked by rotating the grab rail 11, and the first transmission rod 31 can rotate and fold relative to the telescopic rod 33; when the first transmission rod 31 rotates, the second locking mechanism can be unlocked, the telescopic rod 33 can retract to drive the first connecting rod structure, the second connecting rod structure and the third connecting rod structure to move, the second transmission rod 32 and the telescopic rod 33 rotate and fold oppositely, the first wheel frame 34 and the second wheel frame 35 also rotate and fold oppositely, and the seat frame 36 rotates and folds, so that the folding process of the side frame can be completed. The side frame can realize linkage folding, and can be convenient for folding operation of the baby carriage framework.

Referring to fig. 3, 5, 7 and 9, the first locking mechanism includes a first rope 511, a stopper 512, a second elastic member 513 and a first locking block 514. The limit block 512, the second elastic member 513 and the first locking block 514 are sequentially arranged, the limit block 512 is fixedly connected with the first transmission rod 31, the first locking block 514 is slidably inserted on the first transmission rod 31, the first pull rope 511 is connected with the grab bar 11 and the first locking block 514, and the joint of the first pull rope 511 and the grab bar 11 deviates from the axis of the pivot between the grab bar 11 and the first transmission rod 31. The telescopic rod 33 is provided with a first locking hole 515 which is matched with the first locking block 514. When the first locking mechanism is in a locked state, the first locking block 514 is inserted into the first locking hole 515; when the grab bar 11 is rotated, the first pull rope 511 is moved, and the first locking block 514 is pulled by the first pull rope 511 to move, so that the first locking block 514 is disengaged from the first locking hole 515, and the first locking mechanism can be unlocked.

In some embodiments, the first locking block 514 may be pivoted to the first transmission rod 31, and a torsion spring may be provided, and two torsion arms of the torsion spring respectively abut against the first locking block 514 and the first transmission rod 31. The first pull cord 511 pulls the first lock block 514 to rotate so that the first lock block 514 moves out of the first lock hole 515.

Referring to fig. 3, 4, 9 and 10, the telescopic rod includes an outer tube 331 and an inner tube 332 inserted into the outer tube 331, and the second locking mechanism includes a locking tube 521, a third elastic member 522, a first locking pin 523, a second locking block 524, a third locking block 525, a second pulling rope 526, a shifting block 527 and a second locking pin 528. The lock pipe 521 is inserted into the inner pipe 332, a first guide groove 5211 and a limiting portion 5212 are formed in the lock pipe 521, the second lock block 524 is slidably disposed in the lock pipe 521, and a second guide groove 5241 is formed in the second lock block 524. The second guide groove 5241 is angled with respect to the first guide groove 5211, i.e., the second guide groove 5241 is inclined or perpendicular to the first guide groove 5211. The third elastic element 522 is disposed between the second locking block 524 and the limiting portion 5212, the third locking block 525 is slidably disposed on the second locking block 524, the first locking pin 523 is disposed on the third locking block 525, and the first locking pin 523 is inserted into the first guide groove 5211 and the second guide groove 5241. The outer tube 331 is provided with a second locking hole 3311 to be engaged with the third locking block 525. The shifting block 527 is slidably disposed on the inner tube 332, and the second pull cord 526 connects the shifting block 527 with the second locking block 524. The first transmission rod 31 is provided with a third guide slot 311 which is arranged around the first pivot and is arc-shaped, the distance between the third guide slot 311 and the first pivot gradually increases or decreases along the clockwise direction, the second lock pin 528 is arranged on the shifting block 527, and the second lock pin 528 is inserted in the third guide slot 311.

When the second locking mechanism is in the locked state, the third locking block 525 is inserted into the second locking hole 3311; when the first transmission rod 31 rotates relative to the telescopic rod 33, the second lock pin 528 moves along the third guide slot 311, the distance between the second lock pin 528 and the second pivot gradually changes, so that the shifting block 527 and the second pull rope 526 move relative to the inner tube 332, the second lock block 524 can be pulled to move by the second pull rope 526, and the first lock pin 523 moves along the first guide slot 5211 and the second guide slot 5241, so that the third lock block 525 moves out of the second lock hole 3311, and the second lock mechanism can be unlocked.

Specifically, when the stroller frame is folded, the first transmission rod 31 rotates forward relative to the telescopic rod 33 and is folded, and the distance between the third guide slot 311 and the first pivot gradually increases along the clockwise direction. Accordingly, when the first driving lever 31 is folded backward with respect to the telescopic rod 33, the distance between the third guide groove 311 and the first pivot gradually decreases in the clockwise direction.

In some embodiments, the third locking block 525 may be pivotally disposed on the locking tube 521, and a torsion spring may be provided, two torsion arms of the torsion spring abut against the third locking block 525 and the locking tube 521, respectively, and the second pulling rope 526 is connected to the third locking block 525. The third lock block 525 is rotated by the second pull cord 526 to move the third lock block 525 out of the second lock aperture 3311.

When the baby carriage framework is in an unfolded state, the locking mechanism, the first locking mechanism and the third locking mechanism are all in a locked state, rotation between the two grab bars 11 is limited, and then the two groups of side frames are limited from approaching each other, so that the telescopic action of the cross support frame 40 can be limited.

One folding process for the stroller frame is as follows:

(1) the pressing block 21 is pressed to unlock the locking mechanism, and the grab bar 11 is pressed and rotated to move the first pull rope 511 to unlock the first locking mechanism;

(2) pushing the first transmission rod 31 to rotate and fold forwards, so that the second pull rope 526 moves to unlock the second locking mechanism;

(3) under the action of the acting force of the user and the gravity, the inner tube 332 of the telescopic rod 33 retracts into the outer tube 331, the first connecting rod structure acts, the second connecting rod structure and the third connecting rod structure also act, the second transmission rod 32 and the telescopic rod 33 rotate and fold oppositely, the first wheel frame 34 and the second wheel frame 35 also rotate and fold oppositely, and the seat frame 36 rotates and folds;

(4) the two grab bars 11 are continuously rotated and folded oppositely, and the cross-support frame 40 is folded in a telescopic way so as to reduce the width of the baby carriage framework after being folded.

The utility model also provides a children's shallow, it is including sitting pocket (not shown in the figure) and foretell bassinet skeleton, sits the pocket and installs on the side bearer. Specifically, the seat pocket is coupled to the seat frame 36. Through the structure, the child stroller can be folded in a linkage mode, convenience is brought to folding operation of a user, the size and the width of the folded child stroller are small, and storage and transportation are facilitated.

In the above embodiment, the first elastic member, the second elastic member 513 and the third elastic member 522 may be provided as a compression spring or the like. In addition, the structure of glue block can also be adopted.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The baby carriage frame is characterized by comprising

The handrail frame comprises two handrail rods which are rotatably connected;

the locking mechanism is arranged on the handrail frame and can limit the relative rotation of the two handrail rods;

the foldable two groups of side frames are respectively arranged at the left side and the right side of the handrail frame, one group of side frames is rotationally connected with one handrail rod, and the other group of side frames is rotationally connected with the other handrail rod;

and the cross-bracing frames are connected between the two groups of side frames and are arranged into telescopic structures.

2. A stroller frame according to claim 1, wherein the locking mechanism comprises a pressing piece and a first elastic member, the two rods are provided with a limiting groove, the pressing piece is simultaneously inserted into the limiting grooves of the two rods, and the first elastic member is located between the bottom surface of one of the limiting grooves and the pressing piece.

3. The stroller frame according to claim 2, wherein the locking mechanism further comprises a pressing cover, the pressing cover is provided with a hook, one of the grab bars is provided with a limiting hole communicated with the limiting groove, the hook passes through the limiting hole and extends into the limiting groove, and the pressing cover and the first elastic member are respectively arranged at two sides of the pressing block.

4. The stroller frame according to claim 1, wherein the cross-brace comprises two cross-brace tubes, wherein the end of one of the cross-brace tubes is provided with a mounting block, and the other cross-brace tube is slidably inserted into the mounting block;

or the two cross-brace pipes of the cross-brace frame are sleeved with each other.

5. The stroller frame of claim 1, wherein the side frame comprises a first drive link, a second drive link, a telescoping link, a first wheel carrier, a second wheel carrier, and a seat frame;

one end of the first transmission rod, one end of the second transmission rod and one end of the telescopic rod are rotatably connected through a first pivot, the other end of the second transmission rod, the first wheel carrier and the second wheel carrier are rotatably connected through a second pivot, and the other end of the telescopic rod is rotatably connected with the first wheel carrier through a third pivot, so that the second transmission rod, the first wheel carrier and the telescopic rod form a first connection rod structure;

the side frame is provided with a first locking mechanism and a second locking mechanism which can be unlocked, the first locking mechanism can limit the relative rotation of the first transmission rod and the telescopic rod, the second locking mechanism can limit the extension and retraction of the telescopic rod, the first locking mechanism can be unlocked when the grab bar rotates, and the second locking mechanism can be unlocked when the first transmission rod rotates;

the seat frame is connected with the first connecting rod structure through a second connecting rod structure, and the first wheel frame and the second wheel frame are connected with the second connecting rod structure through a third connecting rod structure.

6. A stroller frame according to claim 5, wherein a first rod is disposed on the side frame, one end of the first rod is rotatably connected to the seat frame, the other end of the first rod is rotatably connected to the first wheel frame via the second pivot, and the seat frame is rotatably connected to the telescopic rod, so that the telescopic rod, the seat frame, the first rod and the first wheel frame form the second link structure.

7. The stroller frame according to claim 6, wherein a second bar, a third bar and a fourth bar are disposed on the side frame, one end of the second bar is rotatably connected to a middle portion of the first bar, the other end of the second bar is rotatably connected to one end of the third bar, a middle portion of the third bar is rotatably connected to the first wheel frame, the other end of the third bar is rotatably connected to one end of the fourth bar, and the other end of the fourth bar is rotatably connected to the second wheel frame, such that the third link structure is formed by the first bar, the second bar, the third bar, the fourth bar, the first wheel frame and the second wheel frame.

8. The stroller frame according to claim 5, wherein the first latch mechanism comprises a first pull cord, a stopper, a second elastic member, and a first latch;

the limiting block, the second elastic component and first locking piece arrange in proper order on the first drive lever, the limiting block with first drive lever fixed connection, first locking piece slides and inserts and locates on the first drive lever, first stay cord is connected the bar with first locking piece, be provided with on the telescopic link with first locking hole of first locking piece matched with.

9. The stroller frame according to claim 5 or 8, wherein the telescopic rod comprises an outer tube and an inner tube inserted into the outer tube, and the second locking mechanism comprises a locking tube, a third elastic member, a first lock pin, a second lock block, a third lock block, a second pull rope, a shift block and a second lock pin;

the locking pipe is inserted in the inner pipe, a first guide groove and a limiting part are arranged on the locking pipe, the second locking block is slidably arranged in the locking pipe, a second guide groove with an included angle with the first guide groove is arranged on the second locking block, the third elastic piece is arranged between the second locking block and the limiting part, the third locking block is slidably arranged on the second locking block, the first locking pin is arranged on the third locking block, the first locking pin is inserted in the first guide groove and the second guide groove, a second locking hole matched with the third locking block is arranged on the outer pipe, the shifting block is slidably arranged on the inner pipe, the second pull rope is connected with the shifting block and the second locking block, and a third guide groove which is arranged around the first pivot and is arc-shaped is arranged on the first transmission rod, the distance between the third guide groove and the first pivot gradually increases or decreases along the clockwise direction, the second lock pin is arranged on the shifting block, and the second lock pin is inserted in the third guide groove.

10. Child stroller, characterized in that it comprises a stroller frame according to any of claims 1 to 9.