CN221214175U

CN221214175U - Child cart

Info

Publication number: CN221214175U
Application number: CN202321807710.6U
Authority: CN
Inventors: 邝超
Original assignee: Zhongshan Shibao Steel Daily Products Co ltd
Current assignee: Zhongshan Shibao Steel Daily Products Co ltd
Priority date: 2023-07-10
Filing date: 2023-07-10
Publication date: 2024-06-25
Anticipated expiration: 2033-07-10

Abstract

The utility model discloses a child stroller, which can move from an unfolding position to a folding position after unlocking a locking device, and comprises front legs and a rear support frame which is connected to the front legs in a rotating way around a first axis A, wherein the front legs are connected with front wheels, the rear support frame is connected with rear wheels, the rear support frame comprises rear legs which are connected to the front legs in a rotating way around the first axis A, the rear legs are connected with brace rod assemblies which can rotate around a second axis B relative to the rear legs, the front legs comprise first front leg rods which are connected to the brace rod assemblies in a rotating way around a third axis C, the first front leg rods are connected with second front leg rods which rotate relative to the first front leg rods around a fourth axis D, the second front leg rods are connected with the rear legs in a rotating way around the first axis A, and the front wheels are connected to the lower ends of the second front leg rods. The utility model aims to overcome the defects of the prior art and provides a child cart convenient to fold.

Description

Child cart

[ Field of technology ]

The utility model relates to a child stroller.

[ Background Art ]

At present, the child cart has become an indispensable article for the child in the growth process. The children's barrow on the market can be folded or unfolded generally, but the existing children's barrow is complex in transmission structure, more in connecting rods and larger in volume after folding. Therefore, a child stroller with convenient folding and unfolding operation is highly desired, and the utility model provides a novel child stroller structure.

[ utility model ]

The utility model aims to overcome the defects of the prior art and provides a child cart convenient to fold.

The utility model is realized by the following technical scheme:

The utility model provides a children's shallow, can move to folding position from the expansion position after unlocking locking device, including preceding leg 1 and around first axis A rotation connect the back strut 2 on preceding leg 1, preceding leg 1 on be connected with front wheel 11, back strut 2 on be connected with rear wheel 3, back strut 2 include around first axis A rotation connect the back leg 21 on preceding leg 1, back leg 21 on be connected with relative its stay subassembly 22 of around second axis B rotation, preceding leg 1 include around third axis C rotation connect the first preceding leg pole 12 on stay subassembly 22, first preceding leg pole 12 on be connected with around the relative second preceding leg pole 13 of its rotation of fourth axis D, second preceding leg pole 13 around first axis A with back leg 21 rotation be connected, front wheel 11 connect in the lower extreme of second preceding leg pole 13.

The second front leg bar 13 and the rear leg 21 are arranged in an X-shape when unfolded.

A locking component 14 capable of locking the first front leg rod 12 and the second front leg rod 13 is arranged between the two rods.

The stay bar assembly 22 comprises stay bars 221 arranged on the rear legs 21 and push rods 222 movably connected with the stay bars 221, the rear legs 21 are provided with seat support elements 4, and seat pockets 5 which can be unfolded or folded are arranged between the seat support elements 4 and the push rods 222.

The rear leg 21 comprises a rear leg seat 211, two rear leg rods 212 are rotatably connected to the rear leg seat 211 around a second axis B, the middle parts of the two rear leg rods 212 are rotatably connected to the second front leg rod 13 around a first axis a, and the stay rod assembly 22 is connected to the rear leg seat 211.

The stay bar assembly 22 comprises stay bars 221 connected to the rear legs 21, the stay bars 221 comprise a left rod body 2211 and a right rod body 2212 which are arranged on the rear leg base 211 at intervals, mounting portions 2213 protruding inwards are arranged on the left rod body 2211 and the right rod body 2212, mounting grooves 2214 are formed in the mounting portions 2213, clamping columns 15 capable of sliding relative to the front ends of the first front leg rods 12 are arranged on two sides of the front ends of the first front leg rods 12, and elastic pieces 16 capable of pushing the clamping columns 15 to slide are arranged at the front ends of the two clamping columns 15 and the first front leg rods 12.

The locking assembly 14 comprises a left connecting shell 141 arranged on the first front leg rod 12 and a right connecting shell 142 arranged on the second front leg rod 13, a containing space and spline grooves 143 are formed between the left connecting shell 141 and the rotating seat 31 and between the right connecting shell 142 and the rotating seat 31, spline 144 used for being clamped with the spline grooves 143 are movably arranged in the containing space, spline resetting pieces 145 are further arranged between the spline 144 and the left connecting shell 141, pushing pieces 146 capable of rotating relatively to push the spline 144 to separate from the spline grooves 143 on the right connecting shell 142 are connected on the right connecting shell 142, unlocking pieces 147 capable of rotating relatively to drive the pushing pieces 146 to rotate are arranged between the left connecting shell 141 and the right connecting shell 142, and pull handles 148 extending into the seat pockets 5 are arranged on the unlocking pieces 147.

The spline 144 is provided with a first protruding part 1441 protruding from a side adjacent to the pushing part 146, the first protruding part 1441 is provided with a first inclined plane 1442, and the pushing part 146 is provided with a second inclined plane 1461 capable of pushing the first inclined plane 1442 to enable the spline 144 to slide.

The brace assembly 22 includes a brace 221 connected to the rear leg 21, the brace 221 is connected to a push rod 222 capable of sliding relative to the brace 221, and a locking assembly 223 capable of locking the brace 221 and the push rod 222 is disposed between the brace 221 and the push rod 222.

The locking assembly 223 includes an unfolding locking position 2231 and a folding locking position 2232 which are arranged on the push rod 222 and correspond to the unfolding state and the folding state of the push rod 222, the push rod 221 is provided with a clamping piece 2233 which can slide relatively to the push rod to be clamped into the unfolding locking position 2231 or the folding locking position 2232 or separate from the unfolding locking position 2231 or the folding locking position 2232, the push rod 221 is also provided with an operation piece 2234 which can slide relatively to drive the clamping piece 2233 to separate from the unfolding locking position 2231 or the folding locking position 2232, an elastic element 2235 which can push the operation piece 2234 to reset is arranged between the operation piece 2234 and the push rod 221, the push rod 221 is provided with a protruding guide column 1311, one end of the clamping piece 22342 is provided with a clamping piece 22331 which can be clamped into or separated from the unfolding positioning 2231 or the folding locking position 2232, the clamping piece 22331 is also provided with a second inclined groove 22383 which can slide on the second inclined groove 22341 which can slide to enable the second inclined groove 22341 to be arranged on the inclined groove 22335 to be pushed into the second inclined groove 22341.

Compared with the prior art, the utility model has the following advantages:

1. When the folding type folding leg disclosed by the utility model needs to be folded, the locking device is unlocked firstly, then the joint of the first front leg rod and the second front leg rod is lifted, the joint of the first front leg rod and the second front leg rod rotates around the fourth axis D, meanwhile, the front end of the first front leg rod rotates around the third axis C relative to the supporting rod assembly, the second front leg rod rotates around the first axis A with the rear leg, meanwhile, the lower end of the rear leg rotates around the second axis B relative to the supporting rod assembly, at the moment, the first front leg rod and the second front leg rod are mutually close and are close to the supporting rod assembly, and the rear leg is also close to the supporting rod assembly under the driving of the rear leg. The folding of the baby stroller can be realized by only lifting the joint of the first front leg rod and the second front leg rod.

2. When this children's shallow is folding, two rear leg pole lower extreme rotate around second axis B, and two rear leg pole middles are around first axis A simultaneously for the rear leg pole can draw close the vaulting pole subassembly more, makes folding children's shallow's volume littleer. The two rear leg bars are more firmly supported when being unfolded.

3. When the first front leg rod is required to be mounted on the stay bar, the two connecting columns are pressed, so that the clamping columns are located in the first front leg rod, the elastic piece is compressed, when the clamping columns are aligned with the mounting groove, the elastic piece pushes the clamping columns to reset, and the clamping columns are located between the mounting part and the first front leg rod to clamp the two connecting columns, so that the installation is more convenient. The first front leg bar is rotatable about a third axis C relative to the mounting portion.

[ Description of the drawings ]

FIG. 1 is one of the perspective views of the child stroller of the present utility model;

FIG. 2 is a side view of the child stroller of the present utility model;

FIG. 3 is a second perspective view of the child stroller of the present utility model;

FIG. 4 is a perspective view of the child stroller of the present utility model when folded;

FIG. 5 is one of the exploded views of the first and second front leg bars of the child's stroller of the present utility model;

FIG. 6 is a second exploded view of the first front leg bar and the second front leg bar of the child's stroller of the present utility model;

Fig. 7 is an exploded view of the push rod assembly of the stroller of the present utility model.

[ Detailed description ] of the invention

The utility model is further described below with reference to the accompanying drawings:

As shown in fig. 1 to 7, a stroller can be moved from an unfolded position to a folded position after unlocking a locking device, and comprises a front leg 1 and a rear support frame 2 rotatably connected to the front leg 1 around a first axis a, wherein the front leg 1 is connected with a front wheel 11, the rear support frame 2 is connected with a rear wheel 3, the rear support frame 2 comprises a rear leg 21 rotatably connected to the front leg 1 around the first axis a, the rear leg 21 is connected with a support rod assembly 22 rotatably connected to the rear leg about a second axis B, the front leg 1 comprises a first front leg rod 12 rotatably connected to the support rod assembly 22 around a third axis C, the first front leg rod 12 is connected with a second front leg rod 13 rotatably connected to the rear leg rod about a fourth axis D, the second front leg rod 13 is rotatably connected to the rear leg 21 around the first axis a, and the front wheel 11 is connected to the lower end of the second front leg rod 13.

When the folding device is required to be folded, the locking device is unlocked firstly, then the joint of the first front leg rod 12 and the second front leg rod 13 is lifted, the joint of the first front leg rod 12 and the second front leg rod 13 rotates around the fourth axis D, the front end of the first front leg rod 12 rotates around the third axis C relative to the supporting rod assembly 22, the second front leg rod 13 rotates around the first axis A with the rear leg 21, the lower end of the rear leg 21 rotates around the second axis B relative to the supporting rod assembly 22, at the moment, the first front leg rod 12 and the second front leg rod 13 are close to each other and are close to the supporting rod assembly 22, and the rear leg 21 is also close to the supporting rod assembly 22 under the driving of the rear leg 21. The folding of the stroller can be realized by only pulling the joint of the first front leg bar 12 and the second front leg bar 13.

The second front leg bar 13 and the rear leg 21 are arranged in an X shape when unfolded, so that the support is more stable.

A locking component 14 capable of locking the first front leg rod 12 and the second front leg rod 13 is arranged between the two rods, so that the locking is more stable.

The stay bar assembly 22 comprises stay bars 221 arranged on the rear legs 21 and push rods 222 movably connected with the stay bars 221, the rear legs 21 are provided with seat support elements 4, and seat pockets 5 which can be unfolded or folded are arranged between the seat support elements 4 and the push rods 222. The seat pocket 5 is convenient for children to sit and is also convenient for folding and unfolding.

The rear leg 21 comprises a rear leg seat 211, two rear leg rods 212 are rotatably connected to the rear leg seat 211 around a second axis B, the middle parts of the two rear leg rods 212 are rotatably connected to the second front leg rod 13 around a first axis a, and the stay rod assembly 22 is connected to the rear leg seat 211. When the child stroller is folded, the lower ends of the two rear leg bars 212 rotate about the second axis B, while the middle of the two rear leg bars 212 rotate about the first axis a, so that the rear leg bars 212 can be closer to the strut assembly 22, resulting in a smaller volume of the folded child stroller. The two rear leg bars 212 are more firmly supported when deployed.

The stay bar assembly 22 comprises stay bars 221 connected to the rear legs 21, the stay bars 221 comprise a left rod body 2211 and a right rod body 2212 which are arranged on the rear leg base 211 at intervals, mounting portions 2213 protruding inwards are arranged on the left rod body 2211 and the right rod body 2212, mounting grooves 2214 are formed in the mounting portions 2213, clamping columns 15 capable of sliding relative to the front ends of the first front leg rods 12 are arranged on two sides of the front ends of the first front leg rods 12, and elastic pieces 16 capable of pushing the clamping columns 15 to slide are arranged at the front ends of the two clamping columns 15 and the first front leg rods 12. When the first front leg rod 12 needs to be mounted on the supporting rod 221, the two connecting columns 15 are pressed, so that the connecting columns 15 are located in the first front leg rod 12, the elastic piece 16 is compressed, when the connecting columns 15 are aligned with the mounting groove 2214, the elastic piece 16 pushes the connecting columns 15 to reset, and the connecting columns 15 are located between the mounting portion 2213 and the first front leg rod 12 to connect the connecting columns with each other in a clamping mode, so that the mounting is more convenient. The first front leg bar 12 is rotatable about the third axis C with respect to the mounting portion 2213.

The locking assembly 14 comprises a left connecting shell 141 arranged on the first front leg rod 12 and a right connecting shell 142 arranged on the second front leg rod 13, a containing space and spline grooves 143 are formed between the left connecting shell 141 and the rotating seat 31 and between the right connecting shell 142 and the rotating seat 31, spline 144 used for being clamped with the spline grooves 143 are movably arranged in the containing space, spline resetting pieces 145 are further arranged between the spline 144 and the left connecting shell 141, pushing pieces 146 capable of rotating relatively to push the spline 144 to separate from the spline grooves 143 on the right connecting shell 142 are connected on the right connecting shell 142, unlocking pieces 147 capable of rotating relatively to drive the pushing pieces 146 to rotate are arranged between the left connecting shell 141 and the right connecting shell 142, and pull handles 148 extending into the seat pockets 5 are arranged on the unlocking pieces 147. The spline 144 is provided with a first protruding part 1441 protruding from a side adjacent to the pushing part 146, the first protruding part 1441 is provided with a first inclined plane 1442, and the pushing part 146 is provided with a second inclined plane 1461 capable of pushing the first inclined plane 1442 to enable the spline 144 to slide.

When the handle 148 is pulled upwards, the unlocking member 147 rotates relative to the left connecting shell 141 and the right connecting shell 142, at this time, the pushing member 146 is driven by the unlocking member 147 to rotate relative to the right connecting shell 142, the second inclined surface 1461 on the pushing member 146 pushes the first inclined surface 1442 on the first protrusion 1441 when the pushing member 146 rotates, the push spline 144 slides transversely relative to the left connecting shell 141 and the right connecting shell 142 to separate from the spline groove 143 on the right connecting shell 142, and when the push spline 144 completely enters the left connecting shell 141, the locking assembly 14 is unlocked, and the first front leg 12 and the second front leg 13 can rotate and fold relative to each other.

The locking assembly 223 includes an unfolding locking position 2231 and a folding locking position 2232 which are disposed on the push rod 222 and correspond to the unfolding state and the folding state of the push rod 222, the support rod 221 is provided with a clamping member 2233 which can slide relatively to clamp the unfolding locking position 2231 or the folding locking position 2232 or separate from the unfolding locking position 2231 or the folding locking position 2232, the support rod 221 is also provided with an operating member 2234 which can slide relatively to drive the clamping member 2233 to separate from the unfolding locking position 2231 or the folding locking position 2232, and an elastic element 2235 which can push the operating member 2234 to reset is disposed between the operating member 2234 and the support rod 221. The supporting rod 221 is provided with a convex guide column 1311, the clamping piece 2233 comprises a sliding clamping piece 22331, one end of the clamping piece 22331 is provided with a clamping tongue 22332 which can be clamped in or separated from the unlocking positioning 2231 and the folding locking positioning 2232, the clamping piece 22331 is provided with a guide groove 22333 for the guide column 1311 to move inwards, the clamping piece 22331 is also provided with a convex second protrusion 22334, the operating piece 2234 is provided with a diagonal chute 22341 for the second protrusion 22334 to clamp in, and the diagonal chute 22341 is provided with a pushing diagonal sliding surface 22342 which can push the second protrusion 22334 to enable the second protrusion 22334 to slide transversely.

When the locking assembly 223 needs to be unlocked, the operating member 2234 is pushed upwards, the pushing inclined sliding surface 22342 on the operating member 2234 pushes the second protrusion 22334 when the operating member 2234 slides upwards, the second protrusion 22334 slides transversely along the inclined sliding groove 22341, the locking piece 22331 moves transversely under the driving of the second protrusion 22334, at this time, the locking tongue 22332 on the locking piece 22331 is gradually separated from the unfolding locking position 2231 or the folding locking position 2232, the whole locking assembly 223 is unlocked, and the push rod 222 can slide relative to the supporting rod 221.

The stay bar 221 is further provided with a two-way locking structure 6 capable of preventing the unlocking of the operation member 2234. The secondary locking structure 6 can prevent the misoperation of the operation piece 2234 so as to unlock the locking assembly 223, thereby being safer.

The operation piece 2234 is provided with a protruding part 23343 protruding upwards, the two locking structures 6 comprise a poking piece 61 which is transversely connected to the supporting rod 221 in a sliding mode, the poking piece 61 comprises a sliding block 611 arranged in the supporting rod 221, the sliding block 611 is provided with a poking button 612, the sliding block 611 is provided with a protruding block 6111 protruding downwards and capable of giving way to the protruding part 23343 when the poking piece 61 slides, and a first spring 62 and a second spring 63 which enable the protruding block 6111 to keep a propped state with the protruding part 23343 are arranged between the left side and the right side of the sliding block 611 and the supporting rod 221. When it is desired to unlock the locking assembly 223, the toggle button 612 is toggled left or right, and at this time the protrusion 6111 of the slider 611 is gradually separated from the protrusion 23343 on the operation member 2234 and is unseated for the protrusion 23343, and at this time the operation member 2234 can be moved upward to unlock the locking assembly 223.

Claims

1. A child stroller movable from an unfolded position to a folded position upon unlocking a locking device, characterized in that: including preceding leg (1) and around back strut (2) on first axis (A) rotation connection on preceding leg (1), preceding leg (1) on be connected with front wheel (11), back strut (2) on be connected with rear wheel (3), back strut (2) including around first axis (A) rotation connection back leg (21) on preceding leg (1), back leg (21) on be connected with relative its around second axis (B) pivoted vaulting pole subassembly (22), preceding leg (1) including around first preceding leg pole (12) on third axis (C) rotation connection on vaulting pole subassembly (22), first preceding leg pole (12) on be connected with around relative its pivoted second preceding leg pole (13) of fourth axis (D), second preceding leg pole (13) around first axis (A) rotation connection with back leg (21), preceding leg (11) be connected in the lower extreme of second leg pole (13).

2. The stroller of claim 1, wherein: the second front leg rod (13) and the rear leg (21) are arranged in an X shape when unfolded.

3. The stroller of claim 1, wherein: a locking component (14) capable of locking the first front leg rod (12) and the second front leg rod (13) is arranged between the two.

4. A stroller according to claim 3, wherein: the support rod assembly (22) comprises a support rod (221) arranged on the rear leg (21) and a push rod (222) movably connected with the support rod (221), the rear leg (21) is provided with a seat support piece (4), and a seat pocket (5) which can be unfolded or folded is arranged between the seat support piece (4) and the push rod (222).

5. The stroller of claim 1, wherein: the rear leg (21) comprises a rear leg seat (211), two rear leg rods (212) are rotatably connected on the rear leg seat (211) around a second axis (B), the middle parts of the two rear leg rods (212) are rotatably connected on a second front leg rod (13) around a first axis (A), and a stay rod assembly (22) is connected on the rear leg seat (211).

6. The stroller of claim 5, wherein: the utility model provides a brace rod assembly (22) including connecting stay bar (221) on back leg (21), stay bar (221) including interval locate left body of rod (2211) and right body of rod (2212) on back leg seat (211), left body of rod (2211) and right body of rod (2212) on all be equipped with inwards convex installation department (2213), two installation department (2213) on all be equipped with mounting groove (2214), the front end both sides of first preceding leg pole (12) all be equipped with relative gliding joint post (15), two joint post (15) all be equipped with the gliding elastic component (16) of top joint post (15) with the front end of first preceding leg pole (12).

7. The stroller of claim 4, wherein: the locking assembly (14) comprises a left connecting shell (141) arranged on a first front leg rod (12) and a right connecting shell (142) arranged on a second front leg rod (13), a containing space and a spline groove (143) are formed between the left connecting shell (141) and the rotating seat (31) and between the right connecting shell (142) and the rotating seat (31), a spline (144) used for being clamped with the spline groove (143) is movably arranged in the containing space, a spline reset piece (145) is further arranged between the spline (144) and the left connecting shell (141), a pushing piece (146) capable of rotating relatively to push the spline (144) to separate from the spline groove (143) on the right connecting shell (142) is connected between the left connecting shell (141) and the right connecting shell (142), an unlocking piece (147) capable of rotating relatively to drive the pushing piece (146) to rotate when the unlocking piece (147) is arranged on the unlocking piece (147), and a pulling piece (148) extending into the seat (5) is arranged on the unlocking piece.

8. The stroller of claim 7, wherein: the spline (144) and the pushing piece (146) are provided with a first protruding part (1441) protruding from one side adjacent to the first protruding part (1441), the first protruding part (1441) is provided with a first inclined plane (1442), and the pushing piece (146) is provided with a second inclined plane (1461) capable of pushing the first inclined plane (1442) to enable the spline (144) to slide.

9. The stroller of claim 1, wherein: the stay bar assembly (22) comprises stay bars (221) connected to the rear legs (21), the stay bars (221) are connected with push rods (222) capable of sliding relative to the stay bars, and locking assemblies (223) capable of locking the stay bars (221) and the push rods (222) are arranged between the stay bars and the push rods.

10. The stroller of claim 9, wherein: the locking assembly (223) comprises an unfolding locking position (2231) and a folding locking position (2232) which are arranged on the push rod (222) and correspond to the unfolding state and the folding state of the push rod (222), the support rod (221) is provided with an elastic element (2235) which can slide relatively to the elastic element to clamp the unfolding locking position (2231) or the folding locking position (2232) or a clamping piece (2233) which is separated from the unfolding locking position (2231) or the folding locking position (2232), the support rod (221) is also provided with an operation piece (2234) which can slide relatively to drive the clamping piece (2233) to separate from the unfolding locking position (2231) or the folding locking position (2232), an elastic element (2235) which can reset the operation piece (2234) is arranged between the operation piece (2234) and the support rod (221), the support rod (221) is provided with a convex guide post (1311), the clamping piece (2233) comprises a sliding clamping piece (22331), one end (22331) is provided with a clamping piece (22331) which is separated from the folding guide post (3732) and can be clamped on the guide post (3832) which can be clamped on the two guide posts (3732) which can be clamped on the two (3732), the operation piece (2234) is provided with an inclined chute (22341) which can be used for the second bulge (22334) to be clamped in, and the inclined chute (22341) is provided with a pushing inclined sliding surface (22342) which can push the second bulge (22334) to enable the second bulge (22334) to transversely slide.