CN217074490U

CN217074490U - Children's shallow frame

Info

Publication number: CN217074490U
Application number: CN202220475527.XU
Authority: CN
Inventors: 廖整辉
Original assignee: Zhongshan Weiya Technology Co ltd
Current assignee: Zhongshan Weiya Technology Co ltd
Priority date: 2022-03-05
Filing date: 2022-03-05
Publication date: 2022-07-29
Anticipated expiration: 2032-03-05

Abstract

The utility model discloses a children's shallow frame can follow the expansion position after unblock locking device and remove to folding position, include: the lower ends of the front legs are connected with front wheel components; the rear leg comprises a rear leg rod and a connecting seat connected to the upper end of the rear leg rod, the front leg is rotatably connected to the front side of the connecting seat around a first axis A, and the lower end of the rear leg rod is connected with a rear wheel assembly; the stay bar is rotatably connected to the rear side of the connecting seat around a second axis B, and a linkage piece which can enable the front leg to rotate and approach towards the rear leg when the stay bar rotates and approaches towards the rear leg is arranged between the stay bar and the front leg; the rear end of the seat supporting piece is rotatably connected to the front leg around a third axis C, and a transmission assembly capable of driving the seat supporting piece to approach the front leg when the front leg rotates to approach the rear leg is arranged between the seat supporting piece and the front leg. The utility model aims at overcoming the defects of the prior art and providing a child stroller frame which has simple folding structure and is convenient to fold.

Description

Children's shallow frame

[ technical field ] A method for producing a semiconductor device

The utility model relates to a stroller frame.

[ background of the invention ]

With the development of society, the baby stroller becomes a necessary tool for the travel of infants. Parents attach more and more importance to the characteristics of easy folding, small volume, convenient storage and the like of the stroller besides pursuing the basic requirements of safety and stability of the stroller. In view of this, at present, the stroller generally has a foldable function, and when the stroller is used, the stroller is unfolded, and when the stroller is not used, the stroller is folded, so that the stroller is convenient to carry, and the occupied space is reduced. The utility model discloses provide a new implementation scheme in addition.

The utility model discloses it is just based on above-mentioned not enough research and development and produce.

[ Utility model ] content

The utility model aims at overcoming the defects of the prior art and providing a child cart frame which has a simple folding structure and is convenient to fold.

The utility model discloses a realize through following technical scheme:

a stroller frame movable from an unfolded position to a folded position upon unlocking a locking device, comprising:

the lower ends of the front legs 11 are connected with front wheel assemblies 111;

the rear leg 12, the rear leg 12 includes a rear leg rod 121 and a connecting seat 122 connected to the upper end of the rear leg rod 121, the front leg 11 is rotatably connected to the front side of the connecting seat 122 around a first axis a, and the lower end of the rear leg rod 121 is connected to a rear wheel assembly 123;

the stay bar 13 is rotatably connected to the rear side of the connecting seat 122 around a second axis B, and a linkage 14 which can enable the front leg 11 to rotate and approach to the rear leg 12 when the stay bar 13 rotates and approaches to the rear leg 12 is arranged between the stay bar 13 and the front leg 11;

the seat support 2, the seat support 2 rear end rotate around third axis C and connect on preceding leg 11, just seat support 2 and preceding leg 11 between be equipped with and drive the transmission assembly 3 that can drive seat support 2 and draw close to preceding leg 11 when preceding leg 11 back leg 12 rotates to draw close.

The transmission assembly 3 comprises a sliding part 31 connected to the front leg 11 in a sliding manner, a first transmission rod 32 is rotatably connected between the sliding part 31 and the front end of the seat support 2, a second transmission rod 33 is movably connected between the sliding part 31 and the connecting seat 122, a sliding groove 112 capable of allowing the sliding part 31 to slide is arranged on the front leg 11, and a pushing part 34 capable of pushing the sliding part 31 to slide when the front leg 11 rotates so as to enable the seat support 2 to rotate, unfold or fold is arranged on the sliding groove 112.

One end of the second transmission rod 33 is rotatably connected to the connecting seat 122 around the fourth axis D, the other end of the second transmission rod 33 is rotatably connected to the sliding member 31 around the fifth axis E, one end of the first transmission rod 32 is rotatably connected to the front end of the seat supporting member 2 around the eighth axis H, and the other end of the first transmission rod 32 is rotatably connected to the sliding member 31 around the fifth axis E.

The pushing portion 34 includes an upper pushing surface 341 disposed in the sliding groove 112 and capable of pushing the sliding member 31 to drive the seat support member 2 to rotate and fold when the front leg 11 rotates and folds toward the rear leg, and the pushing portion 34 further includes a lower pushing surface 342 disposed in the sliding groove 112 and capable of pushing the sliding member 31 to drive the seat support member 2 to rotate and fold when the front leg 11 rotates and unfolds relative to the rear leg.

The sliding member 31 is a pin.

The first axis A and the second axis B are parallel to each other.

One end of the linkage piece 14 is rotatably connected to the stay bar 13 around a sixth axis F, the sixth axis F is deviated from the second axis B and is parallel to the second axis B, the other end of the linkage piece 14 is rotatably connected to the front leg 11 around a seventh axis G, and the seventh axis G is deviated from the first axis a and is parallel to the first axis a.

The locking device 4 is arranged between the stay bar 13 and the rear leg 12, the locking device 4 can lock the frame of the stroller in an unfolded state, the locking device 4 comprises a left rotating seat 41 arranged on the connecting seat 122 and a right rotating seat 42 arranged on the stay bar 13 and rotationally connected with the left rotating seat 41, a cavity 43 is defined between the left rotating seat 41 and the right rotating seat 42, a spline 44 capable of sliding relative to the cavity 43 is arranged in the cavity 43, spline grooves 45 capable of being clamped with the spline 44 are arranged on the left rotating seat 41 and the right rotating seat 42, an elastic member 46 capable of clamping the spline 44 with the spline grooves 45 on the left rotating seat 41 and the right rotating seat 42 is arranged between the spline 44 and the left rotating seat 41, a pushing member 47 capable of pushing the spline 44 to be separated from the spline groove 45 on the right rotating seat 42 and enter the left rotating seat 41 when being pushed is arranged between the spline 44 and the right rotating seat 42, the pushing member 47 is provided with an extension 471 which can extend into the supporting rod 13.

The stay bar 13 is internally connected with a handle bar 5 which can unlock the locking device 4 when sliding, and a locking structure 6 which can lock the handle bar 5 and the stay bar 13 is arranged between the handle bar 5 and the stay bar 13.

The locking structure 6 comprises a locking position 61 arranged on the stay bar 13, the handle bar 5 is connected with a clamping piece 62 which can slide transversely relative to the handle bar and be clamped into or separated from the locking position 61, the handle bar 5 is further connected with a driving piece 63 which can drive the clamping piece 62 to slide transversely and be separated from the locking position 61 when sliding vertically, the handle bar 5 is further rotatably connected with an operating piece 64, a pull cable 65 which can pull the driving piece 63 to slide when the operating piece 64 is operated is connected between the operating piece 64 and the driving piece 63, a first elastic reset piece 66 which can drive the driving piece 63 to reset is connected between the driving piece 63 and the handle bar 5, and a second elastic reset piece 67 which can drive the operating piece 64 to reset is connected between the operating piece 64 and the handle bar 5.

Compared with the prior art, the utility model discloses there is following advantage: the utility model discloses children's shallow frame is when needs are folding, at first unblock locking device, then promote the vaulting pole to rotate around second axis B to the back leg pole and draw close, the vaulting pole drives linkage activity when rotating, it rotates and draws close foldingly to the back leg pole around first axis A relative connecting seat to drive the front leg during linkage activity, and the front leg drives the drive assembly activity when the front leg draws close to the back leg pole, and then make drive assembly drive seat support piece rotate around the relative front leg of third axis C and draw close foldingly to the front leg, the folding of whole children's shallow frame has just been accomplished this moment, folding mode is very simple, only need rotate the vaulting pole behind unblock locking device and draw close to accomplish to the back leg pole.

[ description of the drawings ]

Fig. 1 is a perspective view of a frame of the stroller of the present invention;

fig. 2 is a second perspective view of the frame of the stroller of the present invention;

fig. 3 is a side view of the stroller frame of the present invention;

fig. 4 is one of cross-sectional views of the frame of the stroller of the present invention;

fig. 5 is a second cross-sectional view of the frame of the stroller of the present invention;

fig. 6 is a state diagram of the stroller frame of the present invention when folded;

fig. 7 is a cross-sectional view of the stroller frame of the present invention when folded;

fig. 8 is a state diagram of the stroller frame of the present invention when folding is completed;

fig. 9 is a cross-sectional view of the stroller frame of the present invention when folding is completed;

fig. 10 is one of the cross-sectional views of the handle bar of the stroller frame of the present invention;

fig. 11 is a second cross-sectional view of the handle bar of the stroller frame of the present invention;

fig. 12 is a cross-sectional view of the stay bar and the connecting seat of the stroller frame of the present invention;

fig. 13 is one of exploded views of a locking device in a frame of the stroller of the present invention;

fig. 14 is a second exploded view of the locking device of the stroller frame of the present invention;

fig. 15 is an exploded view of the drive assembly of the stroller frame of the present invention.

[ detailed description ] embodiments

The invention will be further described with reference to the accompanying drawings:

as shown in fig. 1 to 15, the utility model provides a stroller frame can follow the expansion position and remove to the folding position behind the unblock locking device, include:

The utility model discloses children's shallow frame is when needs are folding, at first unblock locking device, then promote vaulting pole 13 to rotate around second axis B to the back leg pole 121 and draw close, vaulting pole 13 drives 14 activities of linkage when rotating, it rotates around the relative connecting seat 122 of first axis A and draws close foldingly to the back leg pole 121 to drive foreleg 11 when linkage 14 activities, and foreleg 11 drives transmission assembly 3 activity when foreleg 11 draws close to the back leg pole 121, and then make transmission assembly 3 drive seat support piece 2 rotate around the relative foreleg 11 of third axis C and draw close foldingly to foreleg 11, the folding of whole children's shallow frame has just been accomplished this moment, folding mode is very simple, only need rotate behind unblock locking device vaulting pole 13 and draw close to accomplish to the back leg pole 121.

As shown in fig. 4 and 15, the transmission assembly 3 includes a sliding member 31 slidably connected to the front leg 11, a first transmission rod 32 is rotatably connected between the sliding member 31 and the front end of the seat support 2, a second transmission rod 33 is movably connected between the sliding member 31 and the connecting seat 122, a sliding slot 112 is disposed on the front leg 11 and allows the sliding member 31 to slide therein, and a pushing portion 34 is disposed on the sliding slot 112 and can push the sliding member 31 to slide when the front leg 11 rotates, so that the seat support 2 rotates and unfolds or folds. When the front leg 11 rotates around the first axis a relative to the rear leg rod 121 of the connecting seat 122, the pushing portion 34 pushes the sliding member 31 to slide in the sliding slot 112 relative to the front leg 11, at this time, the sliding member 31 simultaneously drives the first transmission rod 32 and the second transmission rod 33 to move, and the first transmission rod 32 and the second transmission rod 33 cooperate with each other during moving, so that the seat support 2 is folded toward the front leg 11. When the front leg 11 rotates around the first axis a to unfold relative to the connecting seat 122, the pushing part 34 pushes the sliding member 31 to slide in the sliding slot 112 in a direction opposite to the front leg 11, and at this time, the sliding member 31 drives the first transmission rod 32 and the second transmission rod 33 to move simultaneously, so that the seat support 2 unfolds. The second driving lever 33 is provided so that the seat support member 2 is stably unfolded in the unfolded state of the stroller frame, and the folding action of the seat support member 2 can be smoothly performed when the stroller frame is folded.

As shown in fig. 4 and 15, one end of the second transmission rod 33 is rotatably connected to the connecting seat 122 around the fourth axis D, the other end of the second transmission rod 33 is rotatably connected to the sliding member 31 around the fifth axis E, one end of the first transmission rod 32 is rotatably connected to the front end of the seat support 2 around the eighth axis H, and the other end of the first transmission rod 32 is rotatably connected to the sliding member 31 around the fifth axis E. When the sliding member 31 is pushed downward by the pushing portion 34 to fold the seat support 2, the two ends of the second transmission rod 33 rotate around the fourth axis D and the fifth axis E respectively relative to the connecting seat 122 and the sliding member 31 to follow the movement of the sliding member 31, and simultaneously the first transmission rod 32 rotates around the eighth axis H relative to the front end of the seat support 2 and the other end rotates around the fifth axis E relative to the sliding member 31 under the driving of the sliding member 31, and the seat support 2 is folded toward the front leg 11 when the front end of the seat support 2 moves along with the first transmission rod 32 and the rear end of the seat support 2 rotates around the third axis C relative to the front leg 11.

As shown in fig. 4 to 5, the first driving rod 32 is a connecting piece with an arc-shaped bend. Is convenient for folding and unfolding, overcomes the dead point of the movement between the rod pieces and ensures smooth movement during folding and unfolding.

As shown in fig. 5, the pushing portion 34 includes an upper pushing surface 341 disposed in the sliding groove 112 and capable of pushing the sliding member 31 to drive the seat support member 2 to rotate and fold when the front leg 11 rotates and folds toward the rear leg, and the pushing portion 34 further includes a lower pushing surface 342 disposed in the sliding groove 112 and capable of pushing the sliding member 31 to drive the seat support member 2 to rotate and fold when the front leg 11 rotates and unfolds relative to the rear leg. The sliding member 31 is a pin.

As shown in fig. 4, the first axis a and the second axis B are parallel to each other.

As shown in fig. 5, one end of the link 14 is rotatably connected to the stay 13 about a sixth axis F, which is offset from and parallel to the second axis B, and the other end of the link 14 is rotatably connected to the front leg 11 about a seventh axis G, which is offset from and parallel to the first axis a. When the stay 13 rotates toward the rear leg rod 121, one end of the link 14 moves along with the stay 13 and rotates about the sixth axis F relative to the stay 13 while moving, and the other end of the link 14 pulls the front leg 11 to move and rotates about the seventh axis G relative to the front leg 11, so that the front leg 11 is driven by the link 14 to rotate toward the rear leg rod 121.

As shown in fig. 13 to 14, the locking device 4 is disposed between the brace 13 and the rear leg 12, and the locking device 4 can lock the stroller frame in the unfolded state.

As shown in fig. 13 to 14, the locking device 4 comprises a left rotating base 41 provided on the connecting base 122 and a right rotating base 42 provided on the stay 13 and rotatably connected to the left rotating base 41, a cavity 43 is enclosed between the left rotating seat 41 and the right rotating seat 42, a spline 44 capable of sliding relative to the cavity 43 is arranged in the cavity 43, the left rotating base 41 and the right rotating base 42 are provided with spline grooves 45 which can be clamped with splines 44, an elastic piece 46 which can enable the spline 44 to be simultaneously clamped with the spline grooves 45 on the left rotating seat 41 and the right rotating seat 42 is arranged between the spline 44 and the left rotating seat 41, a pushing piece 47 capable of pushing the spline 44 to be separated from the spline groove 45 on the right rotating seat 42 and enter the left rotating seat 41 when the pushing is performed is arranged between the spline 44 and the right rotating seat 42, and an extending part 471 capable of extending into the supporting rod 13 is arranged on the pushing piece 47. When the frame of the stroller needs to be folded, the locking device 4 needs to be unlocked, the extending portion 471 is pushed, the extending portion 471 slides transversely along with the movement of the pushing member 47 when the extending portion 471 moves, the pushing member 47 pushes the spline 44, the spline 44 is separated from the spline groove 45 on the right rotating seat 42 and completely enters the left rotating seat 41, at this time, the locking device 4 is unlocked, and the supporting rod 13 can rotate around the first axis a relative to the connecting seat 122 and approach the rear leg rod 121.

As shown in fig. 10 to 12, a handle bar 5 capable of unlocking the locking device 4 when sliding is connected in the stay bar 13, and a locking structure 6 capable of locking the handle bar 5 and the stay bar 13 is arranged between the two. When the handle 5 slides relative to the stay 13, the locking device 4 can be unlocked, and at this time, the stay 13 can be rotated and folded relative to the connecting seat 122.

As shown in fig. 10 to 12, the locking structure 6 includes a locking position 61 disposed on the stay 13, the handle bar 5 is connected with a snap-in member 62 capable of sliding laterally relative to the handle bar to be snapped into or disengaged from the locking position 61, the handle bar 5 is further connected with a driving member 63 capable of driving the snap-in member 62 to slide laterally and disengage from the locking position 61 when sliding vertically, the handle bar 5 is further rotatably connected with an operating member 64, a cable 65 capable of pulling the driving member 63 to slide when the operating member 64 is operated is connected between the operating member 64 and the driving member 63, a first elastic reset member 66 capable of resetting the driving member 63 is connected between the driving member 63 and the handle bar 5, and a second elastic reset member 67 capable of resetting the operating member 64 is connected between the operating member 64 and the handle bar 5. Through round pin axle and inclined plane transmission between driving piece 63 and the joint spare 62 for driving piece 63 can drive the relative handle pole 5 lateral sliding of joint spare 62 when vertical slip. The locking position 61 is a plurality of locking holes, wherein the locking hole at the upper end of the stay bar 13 can adjust the height of the handle bar 5 relative to the stay bar 13, and the locking hole at the lower end of the stay bar 13 locks the stay bar 13 and the handle bar 5 at the folding position. When the locking device 4 needs to be unlocked, the locking structure 6 needs to be unlocked first, the operating element 64 is rotated, the operating element 64 pulls the cable 65 to move after being rotated, the cable 65 drives the driving element 63 to move upwards relative to the handle bar 5 during moving, the driving element 63 drives the clamping element 62 to transversely slide relative to the handle bar 5 to be separated from the locking position 61, and at the moment, the handle bar 5 can slide downwards relative to the support rod 13 to unlock the locking device 4.

As shown in fig. 10 to 11, the handle rod 5 is provided with a pressing portion 51 capable of pushing the extension 471 so as to make the pushing member 47 slide. When the handle rod 5 slides downwards relative to the stay bar 13, the pushing part 51 on the handle rod 5 pushes the extending part 471 to push the pushing part 47 to slide transversely, and the pushing part 47 pushes the spline 44 to unlock the locking device 4 when sliding transversely.

As shown in fig. 1, a foldable seat 7 is also connected to the seat support 2. The seat 7 can be folded, further reducing the space occupied by the stroller frame when folded.

Claims

1. A stroller frame movable from an unfolded position to a folded position after unlocking a locking device, comprising:

the lower ends of the front legs (11) are connected with front wheel assemblies (111);

the rear legs (12) comprise rear leg rods (121) and connecting seats (122) connected to the upper ends of the rear leg rods (121), the front legs (11) are rotatably connected to the front sides of the connecting seats (122) around first axes (A), and the lower ends of the rear leg rods (121) are connected with rear wheel assemblies (123);

the supporting rod (13) is rotatably connected to the rear side of the connecting seat (122) around a second axis (B), and a linkage piece (14) which can enable the front leg (11) to rotatably close to the rear leg (12) when the supporting rod (13) rotatably closes to the rear leg (12) is arranged between the supporting rod (13) and the front leg (11);

seat support piece (2), seat support piece (2) rear end rotate around third axis (C) and connect on preceding leg (11), just seat support piece (2) and preceding leg (11) between be equipped with and can drive transmission assembly (3) that seat support piece (2) closed to preceding leg (11) when preceding leg (11) rotate to back leg (12) and close to.

2. The stroller frame of claim 1, wherein: drive assembly (3) including slider (31) on sliding connection front leg (11), slider (31) and seat support piece (2) front end between rotate and be connected with first transfer line (32), slider (31) and connecting seat (122) between still swing joint have second transfer line (33), front leg (11) on be equipped with gliding spout (112) including supplying slider (31), spout (112) on be equipped with and push up slider (31) and slide and then make seat support piece (2) rotate and expand or folding top portion of pushing away (34) when rotating front leg (11).

3. The stroller frame of claim 2, wherein: second transfer line (33) one end rotate around fourth axis (D) and connect on connecting seat (122), second transfer line (33) other end rotate around fifth axis (E) and connect on slider (31), first transfer line (32) one end rotate around eighth axis (H) and connect in seat support piece (2) front end, just first transfer line (32) other end rotate around fifth axis (E) and connect on slider (31).

4. A stroller frame according to claim 2 or 3, wherein: the pushing part (34) comprises an upper pushing surface (341) which is arranged in the sliding groove (112) and can push the sliding part (31) to drive the seat supporting part (2) to rotate and fold when the front leg (11) rotates and folds towards the rear leg, and the pushing part (34) further comprises a lower pushing surface (342) which is arranged in the sliding groove (112) and can push the sliding part (31) to drive the seat supporting part (2) to rotate and fold when the front leg (11) rotates and unfolds relative to the rear leg.

5. The stroller frame of claim 4, wherein: the sliding part (31) is a pin shaft.

6. The stroller frame of claim 1, wherein: the first axis (A) and the second axis (B) are parallel to each other.

7. The stroller frame of claim 1, wherein: one end of the linkage piece (14) is rotatably connected to the support rod (13) around a sixth axis (F), the sixth axis (F) deviates from the second axis (B) and is parallel to the second axis (B), the other end of the linkage piece (14) is rotatably connected to the front leg (11) around a seventh axis (G), and the seventh axis (G) deviates from the first axis (A) and is parallel to the first axis (A).

8. The stroller frame of claim 1, wherein: the locking device (4) is arranged between the stay bar (13) and the rear leg (12), the locking device (4) can lock the frame of the baby stroller in an unfolded state, the locking device (4) comprises a left rotating seat (41) arranged on the connecting seat (122) and a right rotating seat (42) arranged on the stay bar (13) and rotationally connected with the left rotating seat (41), a cavity (43) is enclosed between the left rotating seat (41) and the right rotating seat (42), a spline (44) capable of sliding relative to the cavity (43) is arranged in the cavity (43), spline grooves (45) capable of being clamped with the spline (44) are arranged on the left rotating seat (41) and the right rotating seat (42), an elastic piece (46) capable of clamping the spline (44) with the spline grooves (45) on the left rotating seat (41) and the right rotating seat (42) is arranged between the spline (44) and the left rotating seat (41), and a pushing piece (47) capable of pushing the spline (44) to be separated from a spline groove (45) on the right rotating seat (42) and enter the left rotating seat (41) when the pushing piece is pushed is arranged between the spline (44) and the right rotating seat (42), and an extending part (471) capable of extending into the support rod (13) is arranged on the pushing piece (47).

9. The stroller frame of claim 1, wherein: the handle rod (5) capable of unlocking the locking device (4) during sliding is connected in the stay bar (13), and a locking structure (6) capable of locking the handle rod (5) and the stay bar (13) is arranged between the handle rod (5) and the stay bar (13).

10. The stroller frame of claim 9, wherein: the locking structure (6) comprises a locking position (61) arranged on the stay bar (13), the handle rod (5) is connected with a clamping piece (62) which can slide transversely relative to the handle rod and be clamped in or separated from the locking position (61), the handle bar (5) is also connected with a driving piece (63) which can drive the clamping piece (62) to slide transversely and separate from the locking position (61) when sliding vertically, the handle bar (5) is also rotationally connected with an operating piece (64), and a pull cable (65) which can pull the driving piece (63) to slide when the operating piece (64) is operated is connected between the operating piece (64) and the driving piece (63), a first elastic resetting piece (66) which can drive the driving piece (63) to reset is connected between the driving piece (63) and the handle bar (5), and a second elastic reset piece (67) capable of driving the operating piece (64) to reset is connected between the operating piece (64) and the handle bar (5).