CN210310523U - Foldable frame of baby stroller - Google Patents

Abstract

The utility model discloses a collapsible frame of children's shallow, including the connecting rod, the connecting rod is equipped with the rear wheel leg joint portion that arranges in proper order, basket leg joint portion, seatpad leg joint portion and lower handle leg joint portion, the middle section of rear wheel leg joint portion and rear wheel support is around the rotatable connection of horizontal axis, basket leg joint portion is around the rotatable connection of horizontal axis with the rear end of basket support, seatpad leg joint portion is around the rotatable connection of horizontal axis with the rear end of seatpad support, the lower handle leg joint portion is around the rotatable second slider that is connected with of horizontal axis, the vertical slidable connection of second slider along the lower handle support is on the lower handle support, be equipped with locking structure C on the lower handle support, the second slider is equipped with locking structure D, locking structure C with the interlocking that locking structure D can unblock. The utility model discloses whole car simple structure links through the unblock action with folding action and locking Assembly, can realize folding fast.

Description

Foldable frame of baby stroller

Technical Field

The utility model relates to a bassinet field, concretely relates to collapsible frame of children's shallow.

Background

In the prior art, a stroller is generally foldable for storage and carrying, and generally includes a stroller frame having an unfolded position and a folded position, a wheel assembly disposed at the bottom of the stroller frame, and a locking mechanism disposed on the stroller frame for locking the stroller frame in the unfolded position. The existing cart frames are various in types, the number of rod pieces is different, and the connection relation and the connection position between the rods are different, so that the folding principle and the folding mode of the cart frames are different.

Disclosure of Invention

The utility model aims at providing a collapsible frame of children's shallow, its simple structure, it is folding convenient fast.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a foldable frame comprises a front wheel bracket, a rear wheel bracket, a lower push handle bracket, an upper push handle bracket, a seat cushion bracket and a basket bracket, wherein in an unfolded side view state, the longitudinal axis of the front wheel bracket is in a front-low and rear-high shape, the longitudinal axis of the rear wheel bracket is in a front-high and rear-low shape, the longitudinal axis of the lower push handle bracket and the longitudinal axis of the upper push handle bracket are in a front-low and rear-high shape, the longitudinal axis of the seat cushion bracket and the longitudinal axis of the basket bracket are approximately in a horizontal shape,

the upper end of the front wheel bracket is rotatably connected with the upper end of the rear wheel bracket around a transverse axis, the lower end of the lower push handle bracket is rotatably connected with the upper end of the rear wheel bracket around the transverse axis, the upper end of the lower push handle bracket is rotatably connected with the lower end of the upper push handle bracket around the transverse axis, the upper end of the lower push handle bracket is provided with a locking structure A, the lower end of the upper push handle bracket is provided with a locking structure B, the locking structure A and the locking structure B can be unlocked and locked with each other, the middle section of the seat cushion bracket is rotatably connected with a first sliding piece around the transverse axis, the first sliding piece is slidably connected to the lower push handle bracket along the longitudinal direction of the lower push handle bracket, and the front end of the basket bracket is rotatably connected with the middle section of the front wheel bracket around the transverse axis;

the basket is characterized by further comprising a connecting rod, the connecting rod is provided with a rear wheel support connecting part, a basket support connecting part, a seat cushion support connecting part and a lower push handle support connecting part which are sequentially arranged, the rear wheel support connecting part is rotatably connected with the middle section of the rear wheel support around a transverse axis, the basket support connecting part is rotatably connected with the rear end of the basket support around the transverse axis, the seat cushion support connecting part is rotatably connected with the rear end of the seat cushion support around the transverse axis, the lower push handle support connecting part is rotatably connected with a second sliding part around the transverse axis, the second sliding part is slidably connected to the lower push handle support along the longitudinal direction of the lower push handle support, a locking structure C is arranged on the lower push handle support, the second sliding part is provided with a locking structure D, and the locking structure C and the locking structure D can be unlocked to be, the first sliding piece abuts against the second sliding piece;

the upper pushing handle support is provided with an operating part, the unlocking action of the operating part drives the unlocking action of the locking structure B, the forward folding action of the upper pushing handle support relative to the lower pushing handle support drives the unlocking action of the locking structure C, and the downward folding action of the lower pushing handle support relative to the rear wheel support drives the backward folding action of the front wheel support relative to the rear wheel support, the downward folding action of the seat cushion support relative to the lower pushing handle support and the downward folding action of the basket support relative to the rear wheel support.

Preferably, the first slider and the second slider are connected in the same sliding slot.

Preferably, in the side-view deployed state, the longitudinal axis of the front wheel bracket, the longitudinal axis of the push-down bar bracket and the longitudinal axis of the push-up bar bracket are substantially collinear.

Preferably, the upper end of the rear wheel support is provided with a transition support, the longitudinal axis of the transition support is in a front-low rear-high shape in a side-view unfolded state, the upper end of the front wheel support is rotatably connected with the upper end of the rear wheel support around a transverse axis, the lower end of the transition support is relatively fixed with the upper end of the rear wheel support, and the lower end of the push handle support is rotatably connected with the upper end of the transition support around a transverse axis.

Preferably, the longitudinal axes of the front wheel carrier, the transition carrier, the push-down bar carrier and the push-up bar carrier are substantially collinear.

Preferably, the operating part is a button, the button is provided with an elastic reset part I for driving the button to bounce, the button is connected with a third sliding part through an upper traction line, the third sliding part is provided with an elastic reset part II for driving the third sliding part to move forwards and downwards, the third sliding part is fixedly connected with the locking structure B, the locking structure B is mutually spliced with the locking structure A, the pressing action of the button drives the third sliding part to move backwards and upwards, and the back and upper movement of the third sliding part drives the locking structure B to move backwards and upwards so that the locking structure B is separated from the locking structure A.

Preferably, the button is arranged on the cross bar of the push-up handle bracket and bounces towards the front lower part of the push-up handle bracket.

Preferably, a pull wire fixing ring is arranged on a rotating shaft between the lower end of the lower push handle support and the upper end of the upper push handle support, the pull wire fixing ring is connected with a fourth sliding piece through a lower pull wire, the fourth sliding piece is provided with an elastic resetting part III for driving the fourth sliding piece to move forwards and downwards, the fourth sliding piece is matched with the inclined surface of the locking structure C, the locking structure C is provided with an elastic resetting part IV for driving the locking structure C to move backwards and downwards and is mutually spliced with the locking structure D, the rotating action of the rotating shaft drives the fourth sliding piece to move backwards and upwards, and the movement of the fourth sliding piece drives the locking structure C to move forwards and upwards so that the locking structure C is separated from the locking structure D.

Preferably, one of the outer side surface of the rotating shaft and the inner side surface of the traction wire fixing ring is provided with a latch, the other one of the outer side surface of the rotating shaft and the inner side surface of the traction wire fixing ring is provided with a clamping groove, the latch is connected in the clamping groove in a transmission manner, the tooth thickness of the latch is smaller than the groove width of the clamping groove, and the latch is in clearance fit with the clamping groove.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages: the utility model discloses a foldable frame of children's shallow is through addding a connecting rod to optimize this connecting rod, front wheel support, rear wheel support, push down the support, push up the relation of connection of support, seatpad support and basket support, whole car simple structure links through the unblock action with folding action and locking Assembly, can realize quick folding.

Drawings

FIG. 1 is a perspective view of a foldable stroller in an unfolded state;

FIG. 2 is a side view of the foldable stroller in an unfolded state;

FIG. 3 is a side, partial cross-sectional view of the foldable stroller in an unfolded position;

FIG. 4 is an enlarged view taken at A in FIG. 3;

FIG. 5 is an enlarged view at B in FIG. 3;

FIG. 6 is a perspective view of the foldable stroller in a semi-folded position;

FIG. 7 is a side view of the foldable stroller in a semi-folded position;

FIG. 8 is a perspective view of the foldable stroller in a folded position;

fig. 9 is a side view of the foldable stroller in a folded position.

Wherein: 10. a front wheel bracket; 20. a rear wheel support; 21. a transition support; 30. a handle bracket is pushed down; 40. pushing up the handle bracket; 41. a button; 50. a seat cushion bracket; 51. a first slider; 60. a basket bracket; 701. a locking structure A; 702. a locking structure B; 703. a locking structure C; 704. a locking structure D; 705. an upper traction wire; 706. a third slider; 707. an elastic reset component II; 708. a rotating shaft; 709. a pull wire fixing ring; 710. a lower traction wire; 711. a fourth slider; 712. elastic resetting parts III and 713 and elastic resetting parts IV; 80. a connecting rod; 81. a second slide member.

Detailed Description

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

referring to fig. 1 to 9, as shown in the drawings, a foldable frame of a stroller includes a front wheel frame 10, a rear wheel frame 20, a lower push handle frame 30, an upper push handle frame 40, a seat cushion frame 50 and a basket frame 60, wherein in a side view unfolded state, a longitudinal axis of the front wheel frame 10 is low in front and high in rear, a longitudinal axis of the rear wheel frame 20 is high in front and low in rear, a longitudinal axis of the lower push handle frame 30 and a longitudinal axis of the upper push handle frame 40 are both low in front and high in rear, a longitudinal axis of the seat cushion frame 50 and a longitudinal axis of the basket frame 60 are substantially horizontal,

the upper end of the front wheel bracket 10 is rotatably connected with the upper end of the rear wheel bracket 20 around a transverse axis, the lower end of the lower push handle bracket 30 is rotatably connected with the upper end of the rear wheel bracket 20 around the transverse axis, the upper end of the lower push handle bracket 30 is rotatably connected with the lower end of the upper push handle bracket 40 around the transverse axis, the upper end of the lower push handle bracket 30 is provided with a locking structure A701, the lower end of the upper push handle bracket 40 is provided with a locking structure B702, the locking structure A701 and the locking structure B702 can be unlocked and locked with each other, the middle section of the seat cushion bracket 50 is rotatably connected with a first sliding part 51 around the transverse axis, the first sliding part 51 is slidably connected to the lower push handle bracket 30 along the longitudinal direction of the lower push handle bracket 30, and the front end of the basket bracket 60 is rotatably;

also comprises a connecting rod 80, the connecting rod 80 is provided with a rear wheel bracket connecting part and a basket bracket connecting part which are arranged in sequence, the bicycle seat comprises a seat cushion bracket connecting part and a lower push handle bracket connecting part, wherein the rear wheel bracket connecting part is rotatably connected with the middle section of a rear wheel bracket 20 around a transverse axis, the basket bracket connecting part is rotatably connected with the rear end of a basket bracket 50 around the transverse axis, the seat cushion bracket connecting part is rotatably connected with the rear end of the seat cushion bracket 50 around the transverse axis, the lower push handle bracket connecting part is rotatably connected with a second sliding part 81 around the transverse axis, the second sliding part 81 is slidably connected to a lower push handle bracket 30 along the longitudinal direction of the lower push handle bracket 30, a locking structure C703 is arranged on the lower push handle bracket 30, the second sliding part 81 is provided with a locking structure D704, the locking structure C703 and the locking structure D704 are locked with each other in an unlocking way, and the first sliding part;

the operating component 41 is arranged on the push-up handle bracket 40, the unlocking action of the operating component 41 drives the unlocking action of the locking structure B702, the forward folding action of the push-up handle bracket 40 relative to the push-down handle bracket 30 drives the unlocking action of the locking structure C703, and the downward folding action of the push-down handle bracket 30 relative to the rear wheel bracket 20 drives the backward folding action of the front wheel bracket 10 relative to the rear wheel bracket 20, the downward folding action of the seat cushion bracket 50 relative to the push-down handle bracket 30 and the downward folding action of the basket bracket 60 relative to the rear wheel bracket 20.

In the preferred embodiment of the present embodiment, the first sliding member 51 and the second sliding member 81 are connected to the same slide groove.

In the preferred embodiment of the present embodiment, the longitudinal axes of the front wheel frame 10, the push-down bar frame 30 and the push-up bar frame 40 are substantially collinear in the side-view deployed state.

In the preferred embodiment of the present invention, the upper end of the rear wheel bracket 20 is provided with a transition bracket 21, in the unfolded side view state, the longitudinal axis of the transition bracket 20 is in a shape of being low at the front and high at the rear, the upper end of the front wheel bracket 10 is rotatably connected with the upper end of the rear wheel bracket 20 around the transverse axis, the lower end of the transition bracket 21 is relatively fixed with the upper end of the rear wheel bracket 20, and the lower end of the push handle bracket 30 is rotatably connected with the upper end of the transition bracket 21 around the transverse axis.

In the preferred embodiment of this embodiment, the longitudinal axes of the front wheel frame 10, the transition frame 21, the push-down bar frame 30, and the push-up bar frame 40 are substantially collinear.

In a preferred embodiment of this embodiment, the operating member 41 is a button, the button 41 is provided with an elastic resetting member i (not shown) for driving the button 41 to bounce, the button 41 is connected to a third sliding member 706 through an upper pulling wire 705, the third sliding member 706 is provided with an elastic resetting member ii 707 for driving the third sliding member 706 to move forward and downward, the third sliding member 706 is fixedly connected to the locking structure B702, the locking structure B702 is inserted into the locking structure a701, the pressing action of the button 41 drives the third sliding member 706 to move backward and upward, and the upward movement of the third sliding member 706 drives the locking structure B702 to move backward and upward, so that the locking structure B702 is separated from the locking structure a 701.

In the preferred embodiment of the present embodiment, the button 41 is provided on the cross bar of the push-up handle holder 40 and springs up toward the front lower side of the push-up handle holder 40.

In a preferred embodiment of this embodiment, a pull wire fixing ring 709 is disposed on the rotating shaft 708 between the lower end of the lower push handle support 30 and the upper end of the upper push handle support 40, the pull wire fixing ring 709 is connected to a fourth sliding member 711 through a lower pull wire 710, the fourth sliding member 711 is provided with an elastic return member iii 712 for driving the fourth sliding member to move forward and downward, the fourth sliding member 711 is matched with the inclined surface of the locking structure C703, the locking structure C703 is provided with an elastic return member iv 713 for driving the locking structure C703 to move backward and downward and is inserted into the locking structure D704, the rotating operation of the rotating shaft 708 drives the fourth sliding member 711 to move backward and upward, and the backward and upward movement of the fourth sliding member 711 drives the locking structure C703 to move forward and upward so that the locking structure C703 is separated from the locking structure.

In a preferred embodiment of this embodiment, one of the outer side surface of the rotating shaft 708 and the inner side surface of the pull wire fixing ring 709 is provided with a latch, the other one of the outer side surface and the inner side surface is provided with a slot, the latch is connected to the slot in a transmission manner, the tooth thickness of the latch is smaller than the slot width of the slot, and the latch is in clearance fit with the slot.

The operation of the preferred embodiment is described below:

① pressing the button to pull the upper pull wire upwards;

② the pulling wire pulls the third sliding piece to move upwards, so that the locking structure A and the locking structure B are unlocked;

③ after the push-up handle bracket rotates forward to a certain angle, the rotating shaft drives the pull wire fixing ring to rotate synchronously in the process of continuing to rotate forward;

④ the pulling wire fixing ring drives the lower pulling wire to pull upwards in the rotating process;

⑤ the lower pull line pulls the fourth slider upward;

⑥ the fourth sliding part is guided by the inclined surface to jack up the locking structure C and unlock the locking piece A and the locking piece D;

⑦ the first and second sliding parts are pressed downwards by the push down bar bracket and slide along the slot of the push down bar bracket;

⑧ the rearward movement of the link causes the basket brackets to pull, the front wheel brackets and the seat brackets to fold together.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. The utility model provides a children's shallow's collapsible frame, includes front wheel support, rear wheel support, pushes down the handle support, pushes up the handle support, seatpad support and basket support, expandes under the side view state, the longitudinal axis of front wheel support is preceding low back height form, the longitudinal axis of rear wheel support is preceding high back low form, the longitudinal axis of pushing down the handle support with the longitudinal axis of pushing up the handle support all is preceding low back height form, the longitudinal axis of seatpad support with the longitudinal axis of basket support is roughly horizontal form, its characterized in that:

the upper end of the front wheel bracket is rotatably connected with the upper end of the rear wheel bracket around a transverse axis, the lower end of the lower push handle bracket is rotatably connected with the upper end of the rear wheel bracket around the transverse axis, the upper end of the lower push handle bracket is rotatably connected with the lower end of the upper push handle bracket around the transverse axis, the upper end of the lower push handle bracket is provided with a locking structure A, the lower end of the upper push handle bracket is provided with a locking structure B, the locking structure A and the locking structure B can be unlocked and locked with each other, the middle section of the seat cushion bracket is rotatably connected with a first sliding piece around the transverse axis, the first sliding piece is slidably connected to the lower push handle bracket along the longitudinal direction of the lower push handle bracket, and the front end of the basket bracket is rotatably connected with the middle section of the front wheel bracket around the transverse axis;

the basket is characterized by further comprising a connecting rod, the connecting rod is provided with a rear wheel support connecting part, a basket support connecting part, a seat cushion support connecting part and a lower push handle support connecting part which are sequentially arranged, the rear wheel support connecting part is rotatably connected with the middle section of the rear wheel support around a transverse axis, the basket support connecting part is rotatably connected with the rear end of the basket support around the transverse axis, the seat cushion support connecting part is rotatably connected with the rear end of the seat cushion support around the transverse axis, the lower push handle support connecting part is rotatably connected with a second sliding part around the transverse axis, the second sliding part is slidably connected to the lower push handle support along the longitudinal direction of the lower push handle support, a locking structure C is arranged on the lower push handle support, the second sliding part is provided with a locking structure D, and the locking structure C and the locking structure D can be unlocked to be, the first sliding piece abuts against the second sliding piece;

the upper pushing handle support is provided with an operating part, the unlocking action of the operating part drives the unlocking action of the locking structure B, the forward folding action of the upper pushing handle support relative to the lower pushing handle support drives the unlocking action of the locking structure C, and the downward folding action of the lower pushing handle support relative to the rear wheel support drives the backward folding action of the front wheel support relative to the rear wheel support, the downward folding action of the seat cushion support relative to the lower pushing handle support and the downward folding action of the basket support relative to the rear wheel support.

2. The foldable frame of claim 1, wherein the first slide and the second slide are connected in the same runner.

3. The foldable frame of claim 1, wherein the longitudinal axis of the front wheel bracket, the longitudinal axis of the push-down bar bracket, and the longitudinal axis of the push-up bar bracket are substantially collinear in the side-view unfolded state.

4. The foldable frame of claim 1, wherein the upper end of the rear wheel bracket is provided with a transition bracket, the longitudinal axis of the transition bracket is low in front and high in back in the unfolded side view state, the upper end of the front wheel bracket is rotatably connected with the upper end of the rear wheel bracket around a transverse axis, the lower end of the transition bracket is relatively fixed with the upper end of the rear wheel bracket, and the lower end of the push handle bracket is rotatably connected with the upper end of the transition bracket around a transverse axis.

5. The foldable frame of claim 4, wherein a longitudinal axis of the front wheel bracket, a longitudinal axis of the transition bracket, a longitudinal axis of the push-down bar bracket, and a longitudinal axis of the push-up bar bracket are substantially collinear.

6. The foldable frame according to claim 1, wherein the operating member is a button, the button is provided with an elastic return member i for driving the button to spring up, the button is connected with a third sliding member through an upper pull wire, the third sliding member is provided with an elastic return member ii for driving the third sliding member to move forward and downward, the third sliding member is fixedly connected with the locking structure B, the locking structure B is inserted with the locking structure a, the pressing action of the button drives the third sliding member to move backward and upward, and the backward and upward movement of the third sliding member drives the locking structure B to move backward and upward so that the locking structure B is separated from the locking structure a.

7. The foldable frame of claim 6, wherein the button is disposed on the crossbar of the push-up bar bracket and springs up toward the front and downward of the push-up bar bracket.

8. The foldable bicycle frame according to claim 1, wherein a pull wire fixing ring is arranged on the rotating shaft between the lower end of the push-down handle support and the upper end of the push-up handle support, the pull wire fixing ring is connected with a fourth sliding member through a lower pull wire, the fourth sliding member is provided with an elastic resetting part III for driving the fourth sliding member to move forwards and downwards, the fourth sliding member is matched with the inclined surface of the locking structure C, the locking structure C is provided with an elastic resetting part IV for driving the locking structure C to move backwards and downwards and is mutually inserted with the locking structure D, the rotating action of the rotating shaft drives the fourth sliding member to move backwards and upwards, and the back and upwards movement of the fourth sliding member drives the locking structure C to move forwards and upwards so that the locking structure C is separated from the locking structure D.

9. The foldable frame of claim 8, wherein one of the outer side surface of the rotating shaft and the inner side surface of the pull wire fixing ring is provided with a latch, the other one of the outer side surface of the rotating shaft and the inner side surface of the pull wire fixing ring is provided with a slot, the latch is connected in the slot in a transmission manner, the latch has a smaller tooth thickness than the slot width of the slot, and the latch is in clearance fit with the slot.

Images