CN220410679U - Child car frame - Google Patents

Abstract

The utility model discloses a child car frame, comprising: the bottom support frame that can fold or expand, the bottom support frame include preceding leg frame, preceding leg frame on be connected with the vaulting pole that can move about relative it, vaulting pole or preceding leg frame on rotate around first axis A and be connected with the back leg frame, back leg frame and vaulting pole between rotatable be connected with can drive the back leg frame to the linkage piece that the preceding leg frame closed when the activity of preceding leg frame is folded relatively to the vaulting pole, preceding leg frame and vaulting pole between still be equipped with and can follow activity expansion or activity folding seat supporting component when preceding leg frame and vaulting pole activity expand or activity fold, preceding leg frame lower extreme be connected with the front wheel, back leg frame lower extreme be connected with the rear wheel. The utility model aims to overcome the defects of the prior art and provide the child car frame which is convenient to fold and unfold.

Description

Child car frame

[ field of technology ]

The utility model relates to a child car frame.

[ 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 present utility model has been made in view of the above-described drawbacks.

[ utility model ]

The utility model aims to overcome the defects of the prior art and provide the child car frame which is convenient to fold and unfold.

The utility model is realized by the following technical scheme:

a child car frame comprising: the bottom support frame 1 capable of being folded or unfolded comprises a front leg frame 11, wherein a supporting rod 12 capable of moving relative to the front leg frame 11 is connected to the front leg frame 11, a rear leg frame 13 is rotatably connected to the supporting rod 12 or the front leg frame 11 around a first axis A, a linkage piece 14 capable of driving the rear leg frame 13 to be close to the front leg frame 11 when the supporting rod 12 is movably folded relative to the front leg frame 11 is rotatably connected to the rear leg frame 13, a seat support assembly 2 capable of following the movable unfolding or movable folding when the front leg frame 11 and the supporting rod 12 are movably unfolded or movably folded is further arranged between the front leg frame 11 and the supporting rod 12, a front wheel 111 is connected to the lower end of the front leg frame 11, and a rear wheel 131 is connected to the lower end of the rear leg frame 13.

The seat support assembly 2 comprises a seat support 21 with a rear end rotatably connected to the front leg frame 11 around a second axis B, the seat support assembly 2 further comprises a rotating rod 22 with a lower end rotatably connected to the stay 12 around a third axis C, and the upper end of the rotating rod 22 is rotatably connected with the front end of the seat support 21 around a fourth axis D.

The front leg frame 11 comprises a front fork 112, a front leg rod 113 is connected to the front fork 112, a protruding portion 114 is arranged on the front leg rod 113, a first through hole 1141 capable of allowing the stay bar 12 to slide is arranged on the protruding portion 114, the stay bar 12 comprises a rod body 121 which is slidably connected in the first through hole 1141, and a sliding sleeve 122 capable of being slidably connected to the front leg rod 113 is arranged at the lower end of the rod body 121.

The linkage member 14 is a linkage rod, the upper end of the linkage rod is rotatably connected to the protruding portion 114 around the fifth axis E, the lower end of the linkage rod is rotatably connected to the rear leg frame 13 around the sixth axis F, the rear end of the seat support 21 is rotatably connected to the front leg frame 11 around the second axis B, and the lower end of the rotation rod 22 is rotatably connected to the sliding sleeve 122 around the third axis C.

The protruding portion 114 is provided with a first supporting surface 1142, and the sliding sleeve 122 is provided with a second supporting surface 1221 that enables the protruding portion 114 and the sliding sleeve 122 to prop against each other when the front leg 11 and the stay 12 are slidably extended.

The rear leg frame 13 comprises two rear leg rods 132 which are symmetrical and are rotatably connected to the sliding sleeve 122 around a first axis A, a transverse supporting rod 133 which can transversely support the two rear leg rods 132 is connected between the rear leg rods 132, an installation part 1331 which is obliquely protruded is arranged on the transverse supporting rod 133, the lower end of the linkage piece 14 is rotatably connected to the installation part 1331 around a sixth axis F, and the rear wheel 131 is connected to the rear leg rods 132.

The locking assembly 3 capable of locking the front leg frame 11 and the supporting rod 12 to enable the child frame to keep the unfolding state is arranged between the front leg frame 11 and the supporting rod 12, the locking assembly 3 comprises a locking position 31 arranged on the front leg frame 11, a clamping locking piece 32 capable of sliding relatively to the supporting rod 12 to be clamped in or separated from the locking position 31 is arranged on the supporting rod 12, a sliding seat 33 capable of sliding vertically relatively to the supporting rod 12 to push the clamping locking piece 32 to slide transversely to be separated from the locking position 31 is also arranged in the supporting rod 12, a bolt 34 is arranged between the sliding seat 33 and the clamping locking piece 32 in a penetrating mode, an elastic piece 35 capable of pushing the clamping locking piece 32 to reset is arranged between the clamping locking piece 32 and the supporting rod 12, and a push rod 4 capable of pushing the sliding seat 33 to be unlocked is connected in a sliding mode.

The push rod 4 and the stay bar 12 between be equipped with the height adjusting device 5 that can adjust the high position between the two, the height adjusting device 5 including locating a plurality of adjustment positions 51 on the push rod 4, push rod 4 in be equipped with can slide and block into or break away from the fastener 52 of adjustment position 51 relative it, push rod 4 on be connected with relative pivoted rotation button 53, rotation button 53 and fastener 52 between be equipped with can drive the cable 54 that fastener 52 breaks away from adjustment position 51 when rotation button 53 rotates, rotation button 53 and push rod 4 between be equipped with first elasticity reset piece 55.

The push rod 4 is also provided with a secondary lock structure 6 capable of preventing the rotating button 53 from sliding and unlocking, the secondary lock structure 6 comprises a sliding unlocking block 61 which is connected to the push rod 4 in a sliding mode, the sliding unlocking block 61 is provided with a propping protrusion 611 which can prop against the rotating button 53 to prevent the rotating button 53 from rotating and unlocking, and a second elastic reset piece 62 is arranged between the unlocking block 61 and the push rod 4.

The seat support 21 is connected with a seat assembly 7 which can be rotated and reversed relative to the seat support, and the seat assembly 7 can be rotated and folded or unfolded.

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

when this children's frame needs folding, the operation vaulting pole slides relative preceding leg, and at the gliding in-process of preceding leg of vaulting pole relative, the linkage rotates behind the leg and preceding leg or vaulting pole relatively, and at linkage pivoted in-process, the linkage draws close with preceding leg gradually, the linkage also pulls behind the leg and rotates relative vaulting pole simultaneously, and make behind the leg draw close towards preceding leg, and when the relative preceding leg of vaulting pole slides, the vaulting pole drives seat supporting component folding draw close, thereby accomplish the folding of whole children's frame, whole folding process is very simple, only need promote the relative preceding leg of vaulting pole slide can.

[ description of the drawings ]

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

FIG. 2 is a second perspective view of the child car frame of the present utility model;

FIG. 3 is a side view of the child car frame of the present utility model;

FIG. 4 is a perspective view of the child car frame of the present utility model during folding;

FIG. 5 is a side view of the child car frame of the present utility model during folding;

FIG. 6 is a perspective view of the child car frame of the present utility model when folded;

FIG. 7 is an exploded view of one of the stay and front leg rest of the child's frame of the present utility model;

FIG. 8 is a second exploded view of the stay and front leg rest of the child car frame of the present utility model;

FIG. 9 is a cross-sectional view of the child car frame of the present utility model;

FIG. 10 is an exploded view of the locking assembly of the child car frame of the present utility model;

fig. 11 is an enlarged view of region G in fig. 9;

FIG. 12 is an exploded view of the height adjustment device of the child car frame of the present utility model;

FIG. 13 is an enlarged view of region H of FIG. 9;

FIG. 14 is an exploded view of the two-way lock structure of the child car frame of the present utility model;

fig. 15 is an enlarged view of region I in fig. 9.

[ 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 15, the present utility model provides a child car frame comprising: the bottom support frame 1 capable of being folded or unfolded comprises a front leg frame 11, wherein a supporting rod 12 capable of moving relative to the front leg frame 11 is connected to the front leg frame 11, a rear leg frame 13 is rotatably connected to the supporting rod 12 or the front leg frame 11 around a first axis A, a linkage piece 14 capable of driving the rear leg frame 13 to be close to the front leg frame 11 when the supporting rod 12 is movably folded relative to the front leg frame 11 is rotatably connected to the front leg frame 11, a seat support assembly 2 capable of following the movable unfolding or movable folding when the front leg frame 11 and the supporting rod 12 are movably unfolded or movably folded is further arranged between the front leg frame 11 and the supporting rod 12, a front wheel 111 is connected to the lower end of the front leg frame 11, and a rear wheel 131 is connected to the lower end of the rear leg frame 13.

When the child car frame needs to be folded, the operation stay bar 12 slides relative to the front leg frame 11, and in the process that the stay bar 12 slides relative to the front leg frame 11, the linkage piece 14 rotates relative to the rear leg frame 13 and the front leg frame 11 or the stay bar 12, and in the process that the linkage piece 14 rotates, the linkage piece 14 gradually closes with the front leg frame 11, meanwhile, the linkage piece 14 also pulls the rear leg frame 13 to rotate relative to the stay bar 12, so that the rear leg frame 13 closes with the front leg frame 11, and when the stay bar 12 slides relative to the front leg frame 11, the stay bar 12 drives the seat support assembly 2 to fold and close, so that the folding of the whole child car frame is completed, and the whole folding process is very simple, and only the stay bar 12 needs to be pushed to slide relative to the front leg frame 11.

As shown in fig. 3 to 5, the seat support assembly 2 includes a seat support 21 rotatably coupled to the front leg frame 11 at a rear end thereof about a second axis B, and the seat support assembly 2 further includes a rotation lever 22 rotatably coupled to the stay 12 at a lower end thereof about a third axis C, and the upper end of the rotation lever 22 is rotatably coupled to the front end of the seat support 21 about a fourth axis D. When the stay bar 12 slides relative to the front leg frame 11, the stay bar 12 drives the lower end of the rotating rod 22 to move, the rotating rod 22 rotates relative to the stay bar 12 around the third axis C, the upper end of the rotating rod 22 rotates relative to the seat support seat 21 around the fourth axis D, the rear end of the seat support seat 21 rotates relative to the front leg frame 11 around the second axis B, at the moment, the rotating rod 22 is gradually parallel to the seat support seat 21 and is attached to the stay bar 12, at the moment, the seat support assembly 2 is folded to the minimum position, and the occupied space of the whole baby carriage frame after being folded is smaller.

As shown in fig. 3 to 5, the front leg 11 includes a front fork 112, a front leg 113 is connected to the front fork 112, a protruding portion 114 is provided on the front leg 113, a first through hole 1141 capable of sliding the stay 12 is provided on the protruding portion 114, the stay 12 includes a rod body 121 slidably connected in the first through hole 1141, and a sliding sleeve 122 capable of slidably connecting to the front leg 113 is provided at a lower end of the rod body 121. The rod body 121 is slidably connected to the front leg rod 113 through the sliding sleeve 122, and the front leg rod 113 is slidably connected to the rod body 121 through the protruding portion 114, so that the front leg frame 11 and the stay rod 12 are guided to slide relatively smoothly.

As shown in fig. 3 to 5, the linkage member 14 is a linkage rod, the upper end of the linkage rod is rotatably connected to the protrusion 114 around the fifth axis E, the lower end of the linkage rod is rotatably connected to the rear leg frame 13 around the sixth axis F, the rear end of the seat support 21 is rotatably connected to the front leg frame 11 around the second axis B, and the lower end of the rotation rod 22 is rotatably connected to the protrusion 114 around the third axis C. The provision of the projection 114 enables the linkage 14 to be fitted to the front leg 11. The provision of the projection 114 also enables the swivel rod 22 and the seat support 21 to be brought into abutment with the stay 12.

As shown in fig. 7 to 8, the protruding portion 114 is provided with a first supporting surface 1142, and the sliding sleeve 122 is provided with a second supporting surface 1221 that enables the protruding portion 114 and the sliding sleeve 122 to abut against each other when the front leg 11 and the stay 12 are slidably extended. The protrusion 114 and the sliding sleeve 122 support each other when the first support surface 1142 and the second support surface 1221 abut each other.

As shown in fig. 4, the rear leg 13 includes two rear leg rods 132 symmetrically and rotatably connected to the sliding sleeve 122 around the first axis a, a transverse rod 133 capable of transversely supporting the two rear leg rods 132 is connected between the rear leg rods 132, an installation portion 1331 protruding obliquely is provided on the transverse rod 133, the lower end of the linkage member 14 is rotatably connected to the installation portion 1331 around the sixth axis F, and the rear wheel 131 is connected to the rear leg rods 132. The linkage 14 is also capable of supporting the rear leg 13 and the front leg 11 when the present child frame is deployed.

As shown in fig. 10 to 11, a locking assembly 3 capable of locking the front leg frame 11 and the supporting rod 12 to keep the child car frame in a unfolded state is arranged between the front leg frame 11 and the supporting rod 12, the locking assembly 3 comprises a locking position 31 arranged on the front leg frame 11, a clamping locking piece 32 capable of sliding relatively to the supporting rod 12 to be clamped in or separated from the locking position 31 is arranged on the supporting rod 12, a sliding seat 33 capable of sliding vertically relatively to the supporting rod 12 to push the clamping locking piece 32 to slide transversely to be separated from the locking position 31 is also arranged in the supporting rod 12, a bolt 34 is arranged between the sliding seat 33 and the clamping locking piece 32 in a penetrating mode, and a push rod 4 capable of pushing the sliding seat 33 to be unlocked when the supporting rod 12 slides is connected in a sliding mode. An elastic piece 35 capable of pushing the locking piece 32 to reset is arranged between the locking piece 32 and the supporting rod 12, and the supporting rod 12 is connected in the supporting rod 12 in a sliding mode and can push the push rod 4 with the sliding seat 33 unlocked when the supporting rod slides. The push rod 4 is operated to slide and fold relative to the supporting rod 12, the supporting rod 12 gradually abuts against the sliding seat 33 in the sliding process and pushes the sliding seat 33 to slide downwards, the inclined surface on the sliding seat 33 pushes the plug pin 34 to move in the sliding process, the plug pin 34 pushes the inclined surface on the locking piece 32 when moving, at the moment, the locking piece 32 gradually breaks away from the locking position 31, the locking of the locking assembly 3 is contacted, and the rod 12 can slide relative to the front leg frame 11 to enable the whole child frame to fold.

As shown in fig. 12 to 13, a height adjusting device 5 capable of adjusting the height position between the push rod 4 and the supporting rod 12 is arranged between the push rod 4 and the supporting rod 12, the height adjusting device 5 comprises a plurality of adjusting positions 51 arranged on the push rod 4, a clamping piece 52 capable of sliding relatively to the push rod 4 to be clamped in or separated from the adjusting positions 51 is arranged in the push rod 4, a rotating button 53 capable of rotating relatively to the push rod 4 is connected to the push rod 4, a guy cable 54 capable of driving the clamping piece 52 to be separated from the adjusting positions 51 when the rotating button 53 rotates is arranged between the rotating button 53 and the clamping piece 52, and a first elastic reset piece 55 is arranged between the rotating button 53 and the push rod 4. When the position between the push rod 4 and the supporting rod 12 needs to be adjusted, the rotating button 53 is pressed, the rotating button 53 rotates relative to the push rod 4, the rotating button 53 drives the guy rope 54 in the rotating process, the guy rope 54 pulls the clamping piece 52 to slide, at the moment, the clamping piece 52 slides relative to the push rod 4 and is separated from the adjusting position 51, the locking between the push rod 4 and the supporting rod 12 is released, the push rod 4 can slide relative to the supporting rod 12 to adjust the position or fold, and when the push rod 4 slides relative to the supporting rod 12 to fold, the push rod 4 pushes the sliding seat 33, so that the locking assembly 3 is unlocked.

As shown in fig. 14 to 15, the push rod 4 is further provided with a secondary lock structure 6 capable of preventing the rotation button 53 from sliding and unlocking, the secondary lock structure 6 includes a sliding unlocking block 61 slidably connected to the push rod 4, the sliding unlocking block 61 is provided with a pushing protrusion 611 capable of pushing against the rotation button 53 to prevent the rotation button 53 from rotating and unlocking, and a second elastic reset piece 62 is provided between the unlocking block 61 and the push rod 4. When the position of the push rod 4 relative to the supporting rod 12 needs to be adjusted or the push rod 4 relative to the supporting rod 12 needs to be folded, the two-way lock structure 6 needs to be unlocked firstly, the sliding unlocking block 61 is operated to slide downwards relative to the push rod 4, the abutting protrusion 611 on the sliding unlocking block 61 slides downwards in the sliding process, at the moment, the abutting protrusion 611 does not abut against the rotating button 53 but is abducted for the rotating button 53, and at the moment, the rotating button 53 can rotate relative to the push rod 4 to unlock the height adjusting device 5.

As shown in fig. 1, the seat support 21 is connected with a seat assembly 7 capable of rotating and reversing relative to the seat support, and the seat assembly 7 can be folded or unfolded in a rotating manner.

As shown in fig. 1, a storage bag 8 capable of storing articles is arranged between the front leg frame 11 and the rear leg frame 13. The storage bag 8 is convenient for a adult to store articles when pushing.

Claims (8)

1. A child car frame, comprising: the foldable or unfolding bottom support frame (1), the bottom support frame (1) comprises a front leg frame (11), a supporting rod (12) capable of moving relative to the front leg frame is connected to the front leg frame (11), a rear leg frame (13) is rotatably connected to the supporting rod (12) or the front leg frame (11) around a first axis (A), a linkage piece (14) capable of driving the rear leg frame (13) to be close to the front leg frame (11) when the supporting rod (12) is movably folded relative to the front leg frame (11) is rotatably connected between the rear leg frame (13) and the supporting rod (12), a seat supporting assembly (2) capable of following the movable unfolding or the movable folding when the front leg frame (11) and the supporting rod (12) are further arranged between the front leg frame (11) and the supporting rod (12), a front wheel (111) is connected to the lower end of the front leg frame (11), and a rear wheel (131) is connected to the lower end of the rear leg frame (13); the seat support assembly (2) comprises a seat support seat (21) with the rear end rotatably connected to the front leg frame (11) around a second axis (B), the seat support assembly (2) also comprises a rotating rod (22) with the lower end rotatably connected to the stay rod (12) around a third axis (C), and the upper end of the rotating rod (22) is rotatably connected with the front end of the seat support seat (21) around a fourth axis (D); the front leg frame (11) comprises a front fork (112), the front fork (112) is connected with a front leg rod (113), the front leg rod (113) is provided with a protruding portion (114), the protruding portion (114) is provided with a first through hole (1141) capable of allowing the stay bar (12) to slide, the stay bar (12) comprises a rod body (121) which is connected in the first through hole (1141) in a sliding mode, and the lower end of the rod body (121) is provided with a sliding sleeve (122) which can be connected on the front leg rod (113) in a sliding mode.

2. A child car frame according to claim 1, wherein: the linkage piece (14) is a linkage rod, the upper end of the linkage rod is rotationally connected to the protruding portion (114) around a fifth axis (E), the lower end of the linkage rod is rotationally connected to the rear leg frame (13) around a sixth axis (F), the rear end of the seat support seat (21) is rotationally connected to the front leg frame (11) around a second axis (B), and the lower end of the rotation rod (22) is rotationally connected to the sliding sleeve (122) around a third axis (C).

3. A child car frame according to claim 2, wherein: the protruding part (114) is provided with a first supporting surface (1142), and the sliding sleeve (122) is provided with a second supporting surface (1221) which enables the protruding part (114) and the sliding sleeve (122) to mutually prop against and support when the front leg frame (11) and the supporting rod (12) are in sliding expansion.

4. A child car frame according to claim 1, wherein: the rear leg frame (13) include symmetry and rotate around first axis (A) and connect two rear leg poles (132) on sliding sleeve (122), rear leg pole (132) between be connected with can transversely support both horizontal stay (133), horizontal stay (133) on be equipped with slope convex installation department (1331), linkage (14) lower extreme rotate around sixth axis (F) and connect on installation department (1331), rear wheel (131) connect on rear leg pole (132).

5. A child car frame according to any one of claims 1 to 4, wherein: the novel child car frame locking device is characterized in that a locking assembly (3) capable of locking the front leg frame (11) and the supporting rod (12) to enable the child car frame to be kept in an unfolding state is arranged between the front leg frame (11) and the supporting rod (12), a locking position (31) arranged on the front leg frame (11) is included, a clamping locking piece (32) capable of sliding relatively to the supporting rod (12) to be clamped in or separated from the locking position (31) is arranged on the supporting rod (12), a sliding seat (33) capable of sliding vertically relatively to push the clamping locking piece (32) to be separated from the locking position (31) in a sliding mode is further arranged in the supporting rod (12), a bolt (34) is arranged between the sliding seat (33) and the clamping locking piece (32) in a penetrating mode, and an elastic piece (35) capable of resetting the clamping locking piece (32) is arranged between the clamping locking piece (32) and the supporting rod (12), and a push rod (4) capable of pushing the sliding seat (33) to be unlocked when the sliding is connected in a sliding mode.

6. The child car frame according to claim 5, wherein: the push rod (4) and vaulting pole (12) between be equipped with high adjusting device (5) that can adjust the high position between the two, high adjusting device (5) including locating a plurality of adjustment positions (51) on push rod (4), push rod (4) in be equipped with can slide and block into or break away from fastener (52) of adjustment position (51) relative it, push rod (4) on be connected with can be relative its pivoted knob (53), knob (53) and fastener (52) between be equipped with can drive fastener (52) and break away from cable (54) of adjustment position (51) when knob (53) rotate, knob (53) and push rod (4) between be equipped with first elasticity reset piece (55).

7. The child car frame according to claim 6, wherein: the push rod (4) on still be equipped with can prevent two lock structures (6) of rotation button (53) slip unblock, two lock structures (6) including sliding connection on push rod (4) slip unlocking piece (61), slip unlocking piece (61) on be equipped with can with rotation button (53) top lean on and prevent rotation button (53) rotation unblock push up protruding (611), unlocking piece (61) and push rod (4) between be equipped with second elasticity reset piece (62).

8. A child car frame according to claim 1, wherein: the seat support seat (21) is connected with a seat assembly (7) which can rotate and change direction relative to the seat support seat, and the seat assembly (7) can be folded or unfolded in a rotating mode.