CN220682464U - Child cart - Google Patents

Abstract

The utility model discloses a child stroller, which comprises front legs, wherein the front legs are connected with front wheels, the front legs are rotatably connected with rear legs around a first axis, the rear legs are connected with rear wheels, the rear legs are rotatably connected with stay bars around a second axis, a linkage component which can drive the front legs to rotate towards the rear legs when the stay bars are rotated towards each other around the second axis relative to the rear legs is arranged among the stay bars, the front legs and the rear legs, the child stroller further comprises a seat support piece, the rear ends of the seat support piece are rotatably connected with the rear legs around a third axis, and a connecting piece which can rotate relative to the front ends of the seat support piece and can drive the seat support piece to rotate towards the front legs when the linkage component moves is arranged between the front ends of the seat support piece and the linkage component. The folding and unfolding operation is convenient, the folding structure is simple, and the volume is small after folding.

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 a simple structure and a small size after folding is very desirable.

The utility model further provides a novel embodiment.

[ utility model ]

The utility model aims to overcome the defects of the prior art and provide the child cart which is convenient to fold and unfold, simple in folding structure and small in volume after folding.

The utility model is realized by the following technical scheme:

the utility model provides a children's shallow, can remove to folding state from the expansion state after unlocking locking device, includes front leg 11, front leg 11 on be connected with front wheel 111, front leg 11 on rotate around first axis A and be connected with back leg 12, back leg 12 on be connected with rear wheel 121, back leg 12 on rotate around second axis B and be connected with brace 13, front leg 11 and back leg 12 between be equipped with and can drive front leg 11 to back leg 12 rotate the linkage subassembly 14 of drawing together when brace 13 rotates around second axis B relative back leg 12, children's shallow still include seat support 2, seat support 2 rear end rotate around third axis C and be connected on back leg 12, seat support 2 front end and linkage subassembly 14 between be equipped with and can rotate relative two and can drive seat support 2 and draw together the connecting piece 3 of 11 rotation forward when linkage subassembly 14 moves.

The connecting piece 3 is an arc connecting piece, one end of the connecting piece 3 is rotatably connected to the front end of the seat support 2 around the fourth axis D, and the other end of the connecting piece 3 is rotatably connected to the linkage assembly 14 around the fifth axis E.

The linkage assembly 14 comprises a first linkage member 141 rotatably connected to the front leg 11 around a sixth axis F, the linkage assembly 14 further comprises a second linkage member 142 rotatably connected to the rear leg 12 around a seventh axis G, the first linkage member 141 and the second linkage member 142 are rotatably connected around an eighth axis H, a third linkage member 143 capable of enabling the first linkage member 141 and the second linkage member 142 to be mutually close when the brace 13 is rotatably close to the rear leg 12 is arranged between the brace 13 and the second linkage member 142, one end of the third linkage member 143 is rotatably connected to the brace 13 around a ninth axis I, the other end of the third linkage member 143 is rotatably connected to the second linkage member 142 around the tenth axis J, and the other end of the connecting member 3 is rotatably connected to the front end of the first linkage member 141 around the fifth axis E.

The rear leg 12 includes a rear leg rod 122 and a connecting seat 123 connected to an upper end of the rear leg rod 122, the front leg 11 is rotatably connected to the connecting seat 123 around a first axis a, a rear end of the seat support 2 is rotatably connected to the connecting seat 123 around a third axis C, and the second link 142 is rotatably connected to the rear leg rod 122 around a seventh axis G.

The front leg 11 includes a front leg rod 112, the front leg rod 112 is connected with a front wheel frame 113, the front wheel 111 is connected with the front wheel frame 113, the upper end of the front leg rod 112 is rotatably connected with the rear leg 12 around a first axis, and the first linkage member 141 is rotatably connected with the front leg rod 112 around a sixth axis F.

The connecting seat 123 is provided with a protruding part 1231 protruding outwards, the upper end of the front leg rod 112 is bent, and the upper end of the front leg rod 112 is rotatably connected to the protruding part 1231 around the first axis.

The first linkage member 141 is a first linkage seat, the first linkage seat includes a connection section 1411 rotatably connected to the front leg 11 around a sixth axis F, the front end of the connection section 1411 is connected with an arc-shaped section 1412, and the rear end of the connection section 1411 is connected with a closed section 1413 capable of closing the lower end of the stay bar 13.

The second linkage member 142 includes a straight line segment 1421 rotatably connected to the connecting segment 1411, a bending segment 1422 bent outwards is connected to the rear end of the straight line segment 1421, and an upward protruding protrusion 1423 is further provided on the straight line segment 1421.

The supporting rod 13 is provided with a convex block 131 protruding outwards, one end of the third linkage piece 143 is rotationally connected to the convex block 131, the other end of the third linkage piece 143 is rotationally connected to the convex block 1423, and the third linkage piece 143 is provided with a yielding groove 1431 capable of yielding for the convex block 131.

The locking device comprises a locking assembly 4 arranged between a linkage assembly 14 and a supporting rod 13, the locking assembly 4 comprises a locking position 41 arranged on the linkage assembly 14, a sliding seat 42 capable of sliding along the sliding seat 42 is arranged in the supporting rod 13, a clamping lock part 421 capable of sliding along the sliding seat 42 and clamping in or separating from the locking position 41 is arranged at the lower end of the sliding seat 42, a pushing piece 43 capable of sliding relative to the sliding seat 13 and capable of driving the sliding seat 42 to slide when sliding is arranged between the supporting rod 13 and the sliding seat 42, a first stay cable 44 capable of driving the sliding seat 42 to slide when the pushing piece 43 slides is arranged between the sliding seat 42 and the pushing piece 43, a rotating piece 45 capable of rotating relative to the sliding seat 42 is further arranged on the supporting rod 13, a reset piece 46 capable of resetting the sliding seat 42 is arranged between the sliding seat 42 and the supporting rod 13, a pushing rod 15 capable of sliding relative to the pushing piece 15 is further connected to the supporting rod 13, and the pushing piece 15 can slide along the pushing piece 151 when the pushing piece 43 slides is arranged on the pushing rod 15.

Compared with the prior art, the utility model has the following advantages: when the child stroller is required to be folded, the locking device is unlocked firstly, then the stay bar is pushed to rotate around the second axis B relative to the rear leg, the stay bar enables the linkage assembly to move when the stay bar rotates, the front leg is driven to rotate around the first axis A relative to the rear leg and to be close to the rear leg when the linkage assembly moves, the linkage assembly also simultaneously drives the connecting piece when the linkage assembly moves, the front end of the seat support piece is driven to move when the connecting piece moves, the rear end of the seat support piece rotates around the third axis C relative to the rear leg, at the moment, the seat support piece is close to the front leg, and when the seat support piece is close to the front leg, the front leg is close to the rear leg, and the whole child stroller is folded when the stay bar is close to the rear leg. The whole children cart is very convenient to fold, the whole cart can be folded only by rotating the stay rod to draw close to the rear legs after unlocking the locking device, and the folding operation is simple.

[ description of the drawings ]

FIG. 1 is a perspective view of a 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 an enlarged view of a portion of the linkage assembly of the child stroller of the present utility model;

FIG. 4 is a partially exploded view of the linkage assembly of the child stroller of the present utility model;

FIG. 5 is a cross-sectional view of the locking assembly of the child stroller of the present utility model;

FIG. 6 is a perspective view of the push rod of the child stroller of the present utility model;

FIG. 7 is a perspective view of the slide and swivel of the child stroller of the present utility model;

FIG. 8 is a side view of the child stroller of the present utility model in a folded configuration;

FIG. 9 is an exploded view of the child stroller of the present utility model when folded;

FIG. 10 is a cross-sectional view of the child stroller of the present utility model as folded;

fig. 11 is a perspective view of the first linkage in the stroller of the present utility model.

[ detailed description ] of the utility model

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

as shown in fig. 1 to 11, the present utility model provides a stroller capable of moving from an unfolded state to a folded state after unlocking a locking device, comprising a front leg 11, wherein the front leg 11 is connected with a front wheel 111, the front leg 11 is rotatably connected with a rear leg 12 around a first axis a, the rear leg 12 is connected with a rear wheel 121, the rear leg 12 is rotatably connected with a stay bar 13 around a second axis B, a linkage assembly 14 capable of driving the front leg 11 to rotate towards the rear leg 12 when the stay bar 13 rotates towards the rear leg 12 around the second axis B is arranged between the stay bar 13, the front leg 11 and the rear leg 12, the stroller further comprises a seat support 2, the rear end of the seat support 2 is rotatably connected with the rear leg 12 around a third axis C, and a connecting piece 3 capable of rotating towards the front end of the seat support 2 and the linkage assembly 14 and capable of driving the seat support 2 to rotate towards the front leg 11 when the linkage assembly 14 moves.

When the child stroller needs to be folded, the locking device is unlocked firstly, then the stay bar 13 is pushed to rotate around the second axis B relative to the rear leg 12, the stay bar 13 enables the linkage assembly 14 to move when the stay bar 13 rotates, the linkage assembly 14 drives the front leg 11 to rotate around the first axis A relative to the rear leg 12 and to be close to the rear leg 12 when moving, the linkage assembly 14 also drives the connecting piece 3 when moving the linkage assembly 14, the front end of the seat support 2 is driven to move when the connecting piece 3 moves, the rear end of the seat support 2 rotates around the third axis C relative to the rear leg 12, at the moment, the seat support 2 is close to the front leg 11, and when the seat support 2 is close to the front leg 11, the front leg 11 is close to the rear leg 12, and the whole child stroller is folded when the stay bar 13 is close to the rear leg 12. The whole children's barrow is very convenient to fold, and the folding operation of whole car can be accomplished only to the back leg 12 of turning brace 13 after unlocking locking device and draw close.

As shown in fig. 1 to 2, the connecting member 3 is an arc connecting piece, one end of the connecting member 3 is rotatably connected to the front end of the seat support 2 around the fourth axis D, and the other end of the connecting member 3 is rotatably connected to the linkage assembly 14 around the fifth axis E. When the linkage assembly 14 moves, the linkage assembly 14 drives the connecting piece 3 to move, the connecting piece 3 rotates around the fifth axis E relative to the linkage assembly 14, the other end of the connecting piece 3 drives the front end of the seat support 2 to move, and the connecting piece 3 rotates around the fourth axis D relative to the front end of the seat support 2, so that the rear end of the seat support 2 rotates around the third axis C relative to the rear leg 12, and the whole seat support 2 is folded towards the front leg 11.

As shown in fig. 2 to 5, the linkage assembly 14 includes a first linkage member 141 rotatably connected to the front leg 11 about a sixth axis F, the linkage assembly 14 further includes a second linkage member 142 rotatably connected to the rear leg 12 about a seventh axis G, the first linkage member 141 and the second linkage member 142 are rotatably connected about an eighth axis H, a third linkage member 143 capable of bringing the first linkage member 141 and the second linkage member 142 close to each other when the brace 13 is rotatably moved toward the rear leg 12 is provided between the brace 13 and the second linkage member 142, one end of the third linkage member 143 is rotatably connected to the brace 13 about a ninth axis I, the other end of the third linkage member 143 is rotatably connected to the second linkage member 142 about the tenth axis J, and the other end of the connection member 3 is rotatably connected to the front end of the first linkage member 141 about the fifth axis E.

When the stay bar 13 rotates towards the rear leg 12, the stay bar 13 drives the third linkage piece 143 to move, one end of the third linkage piece 143 rotates around the ninth axis I relative to the stay bar 13, the other end pushes the second linkage piece 142 to move and rotate around the tenth axis J relative to the second linkage piece 142, at this time, the second linkage piece 142 moves and the rear end rotates around the seventh axis G relative to the rear end, the front end of the second linkage piece 142 rotates around the eighth axis H relative to the first linkage piece 141 and drives the first linkage piece 141 to move, the position on the first linkage piece 141 and near the front end rotates around the sixth axis F relative to the front leg 11, at this time, the first linkage piece 141 and the second linkage piece 142 are mutually close to each other, and accordingly the front leg 11 and the rear leg 12 are driven to be mutually close to each other. When the first linkage member 141 rotates, the front end of the first linkage member 141 drives the lower end of the connecting member 3 to move, and the connecting member 3 rotates around the fifth axis E relative to the front end of the first linkage member 141, so as to drive the seat support 2 to approach the front leg 11.

As shown in fig. 2, the rear leg 12 includes a rear leg bar 122 and a connection base 123 connected to an upper end of the rear leg bar 122, the front leg 11 is rotatably connected to the connection base 123 about a first axis a, a rear end of the seat support 2 is rotatably connected to the connection base 123 about a third axis C, and the second link 142 is rotatably connected to the rear leg bar 122 about a seventh axis G. The first axis a is coaxially disposed with the third axis C such that the seat support 2, the front leg 11 and the rear leg 12 are folded more smoothly and more conveniently.

As shown in fig. 2, the front leg 11 includes a front leg bar 112, a front wheel frame 113 is connected to the front leg bar 112, the front wheel 111 is connected to the front wheel frame 113, the upper end of the front leg bar 112 is rotatably connected to the rear leg 12 about a first axis, and the first link 141 is rotatably connected to the front leg bar 112 about a sixth axis F.

As shown in fig. 2, the connecting base 123 is provided with a protruding portion 1231 protruding outwards, the upper end of the front leg rod 112 is bent, and the upper end of the front leg rod 112 is rotatably connected to the protruding portion 1231 around the first axis, so that the front leg 11 and the rear leg 12 can be rotatably folded more compactly, and the folded stroller occupies smaller space.

As shown in fig. 2 to 5, the first linkage element 141 is a first linkage seat, the first linkage seat includes a connection section 1411 that is rotatably connected to the front leg 11 around a sixth axis F, the front end of the connection section 1411 is connected with an arc section 1412, the rear end of the connection section 1411 is connected with a closed section 1413 that can close the lower end of the supporting rod 13, the second linkage element 142 includes a straight line section 1421 that is rotatably connected with the connection section 1411, the rear end of the straight line section 1421 is connected with an outwardly bent section 1422, the straight line section 1421 is further provided with an upwardly protruding bump 1423, the supporting rod 13 is provided with an outwardly protruding bump 131, one end of the third linkage element 143 is rotatably connected to the bump 131, the other end of the third linkage element 143 is rotatably connected to the bump 1423, and the third linkage element 143 is provided with a yielding groove 1431 that can yield for the bump 131. The provision of the arcuate segment 1412 results in a tighter rotational fit of the connector 3 to the front leg 11 and also results in a tighter rotational fit of the seat support 2 to the front leg 11. The closing section 1413 is used to close the lower end of the stay 13. The bump 131 is disposed to enable the third linkage member 143 to have a sufficient moving distance, and provides a pressing point, so that the third linkage member 143 can move more smoothly. The yielding groove 1431 is used for yielding the bump 131 to avoid the third linkage piece 143 from being blocked by the third linkage piece 143.

As shown in fig. 5, fig. 6 and fig. 11, the locking device comprises a locking component 4 arranged between a linkage component 14 and a supporting rod 13, the locking component 4 comprises a locking position 41 arranged on the linkage component 14, a sliding seat 42 capable of sliding along the sliding seat is arranged in the supporting rod 13, a clamping lock part 421 capable of sliding along the sliding seat and being clamped into or separated from the locking position 41 is arranged at the lower end of the sliding seat 42, a pushing piece 43 capable of sliding relative to the sliding seat and capable of driving the sliding seat 42 to slide during sliding is arranged between the supporting rod 13 and the sliding seat 42, a first stay cable 44 capable of driving the sliding seat 42 to slide during sliding of the pushing piece 43 is arranged between the sliding seat 42 and the pushing piece 43, a rotating piece 45 capable of rotating relative to the sliding seat is further arranged on the supporting rod 13, a reset piece 46 capable of resetting the sliding seat 42 is arranged between the sliding seat 42 and the supporting rod 13, a pushing piece 15 capable of sliding relative to the pushing piece 15 is further connected in the supporting rod 13, and the pushing piece 43 can slide along the pushing piece 151.

When the child stroller needs to be folded, the locking assembly 4 needs to be unlocked firstly, the push rod 15 is pushed to slide downwards along the supporting rod 13, the pushing part 151 on the push rod 15 is gradually contacted with the pushing part 43 and pushes the pushing part 43 to move downwards, the first inhaul cable 44 is pulled when the pushing part 43 moves downwards, the sliding seat 42 is driven to move upwards when the first inhaul cable 44 is pulled, and the locking part 421 on the sliding seat 42 is gradually separated from the locking position 41 on the linkage assembly 14 when the sliding seat 42 moves, so that the whole child stroller can be folded.

A locking component capable of locking the push rod 15 and the stay rod 13 is arranged between the push rod and the stay rod. The locking assembly is an existing bayonet lock or a bayonet lock and the like.

As shown in fig. 1, 2 and 8, the seat support 2 is connected with a foldable seat assembly 7. The seat assembly 7 is folded, so that the occupied volume of the whole stroller is smaller after being folded, and the stroller is convenient to store.

Claims (10)

1. A child stroller movable from an unfolded state to a folded state upon unlocking a locking device, characterized in that: including preceding leg (11), preceding leg (11) on be connected with front wheel (111), preceding leg (11) on rotate around first axis (A) and be connected with rear leg (12), rear leg (12) on be connected with rear wheel (121), rear leg (12) on rotate around second axis (B) and be connected with vaulting pole (13), preceding leg (11) and rear leg (12) between be equipped with and can drive preceding leg (11) to link assembly (14) that rear leg (12) rotated and draw close when vaulting pole (13) rotate around second axis (B) relative rear leg (12), the children's shallow still include seat support (2), seat support (2) rear end rotate around third axis (C) and be connected on rear leg (12), seat support (2) front end and link assembly (14) between be equipped with and can drive both relative rotations and link assembly (14) when subassembly (14) are movable and can drive seat support (2) to draw close to link assembly (3) to front leg (11).

2. The stroller of claim 1, wherein: the connecting piece (3) be the arc connection piece, connecting piece (3) one end rotate around fourth axis (D) and connect in seat support piece (2) front end, connecting piece (3) other end rotate around fifth axis (E) and connect on link assembly (14).

3. A stroller according to claim 1 or 2, wherein: the linkage assembly (14) comprises a first linkage piece (141) which is rotationally connected to the front leg (11) around a sixth axis (F), the linkage assembly (14) further comprises a second linkage piece (142) which is rotationally connected to the rear leg (12) around a seventh axis (G), the first linkage piece (141) and the second linkage piece (142) are rotationally connected around an eighth axis (H), a third linkage piece (143) which can enable the first linkage piece (141) and the second linkage piece (142) to be mutually close when the stay bar (13) is rotationally close to the rear leg (12) is arranged between the stay bar (13) and the second linkage piece (142), one end of the third linkage piece (143) is rotationally connected to the stay bar (13) around a ninth axis (I), the other end of the third linkage piece (143) is rotationally connected to the second linkage piece (142) around the tenth axis (J), and the other end of the third linkage piece (3) is rotationally connected to the fifth end (141) around the first axis (E).

4. A stroller according to claim 3, wherein: the rear leg (12) comprises a rear leg rod (122) and a connecting seat (123) connected to the upper end of the rear leg rod (122), the front leg (11) is rotationally connected to the connecting seat (123) around a first axis (A), the rear end of the seat support (2) is rotationally connected to the connecting seat (123) around a third axis (C), and the second linkage (142) is rotationally connected to the rear leg rod (122) around a seventh axis (G).

5. The stroller of claim 4, wherein: the front leg (11) comprises a front leg rod (112), a front wheel frame (113) is connected to the front leg rod (112), the front wheel (111) is connected to the front wheel frame (113), the upper end of the front leg rod (112) is rotationally connected to the rear leg (12) around a first axis, and the first linkage piece (141) is rotationally connected to the front leg rod (112) around a sixth axis (F).

6. The stroller of claim 5, wherein: the connecting seat (123) is provided with a protruding part (1231) protruding outwards, the upper end of the front leg rod (112) is bent, and the upper end of the front leg rod (112) is rotationally connected to the protruding part (1231) around a first axis.

7. A stroller according to claim 3, wherein: the first linkage piece (141) be first linkage seat, first linkage seat include around connecting section (1411) on front leg (11) of sixth axis (F) rotation connection, connecting section (1411) front end be connected with arc section (1412), connecting section (1411) rear end be connected with can be with stay bar (13) lower extreme confined closing section (1413).

8. The stroller of claim 7, wherein: the second linkage part (142) comprises a straight line section (1421) rotationally connected with the connecting section (1411), the rear end of the straight line section (1421) is connected with a bending section (1422) which is bent outwards, and the straight line section (1421) is also provided with a bulge (1423) which protrudes upwards.

9. The stroller of claim 8, wherein: the support rod (13) on be equipped with outwards convex lug (131), third link (143) one end rotate and connect on lug (131), third link (143) other end rotate and connect on arch (1423), third link (143) on be equipped with can be for lug (131) the groove of stepping down (1431) of stepping down.

10. A stroller according to claim 3, wherein: the locking device comprises a locking component (4) arranged between a linkage component (14) and a supporting rod (13), the locking component (4) comprises a locking position (41) arranged on the linkage component (14), a sliding seat (42) capable of sliding along the sliding seat is arranged in the supporting rod (13), a clamping locking part (421) capable of sliding along the sliding seat to be clamped into or separated from the locking position (41) is arranged at the lower end of the sliding seat (42), a pushing piece (43) capable of sliding relative to the sliding seat (13) and capable of driving the sliding seat (42) to slide when sliding is arranged between the supporting rod (13) and the sliding seat (42), a first stay cable (44) capable of driving the sliding seat (42) to slide when the pushing piece (43) slides is arranged between the sliding seat (42) and the pushing piece (43), a rotating piece (45) capable of rotating relative to the sliding is also arranged on the supporting rod (13), part of the first stay cable (44) is wound on the rotating piece (45), the sliding seat (42) can be reset, the pushing piece (46) can be reset relatively to the sliding seat (13), the push rod (15) is provided with a pushing part (151) which can push the pushing piece (43) to slide when the push rod slides along the stay rod (13).