Folding baby carriage capable of being folded quickly

Abstract

The utility model relates to the technical field of baby carriages, in particular to a folding baby carriage capable of being folded quickly, which comprises a handle group, a seat group, a front foot group and a rear foot group, the handle group comprises a handle connecting rod and a push-pull handle, the lower portion of the push-pull handle is rotatably connected with the top of the handle connecting rod through a rotating joint, and an unlocking device is arranged in the middle of the push-pull handle. The rotating joint is provided with an upper locking device, the unlocking device is in driving connection with the upper locking device through a first pull rope, the rear foot set comprises a rear foot rod and a rotating seat, the rotating seat is provided with an outer sleeve, the lower portion of the handle connecting rod is inserted into the outer sleeve in a sliding mode, and a lower locking device is arranged between the handle connecting rod and the outer sleeve. The rotating joint is in driving connection with the lower locking device through a second pull rope, the seat set comprises a backrest frame and a seat frame, the front foot set comprises a front foot rod, and a connecting joint is arranged on the upper portion of the rear foot rod. Rapid folding can be achieved, the effective length of the handle connecting rod and the outer sleeve is shortened during folding, and the folded structure is more compact.

Description

Technical Field

[0001] The utility model relates to the technical field of baby carriages, in particular to a foldable baby carriage that can be folded quickly. Background Art

[0002] A foldable baby stroller can be folded to reduce the space it occupies. Traditional foldable baby strollers are complex and have many parts, which requires cumbersome steps to complete when folding or unfolding the baby stroller. In order to improve the efficiency of folding or unfolding the baby stroller, the folding baby stroller in the prior art has a one-button folding function. For example, a Chinese patent document with application number 201810647800.0 discloses a baby stroller frame that can be folded automatically, including a front foot rod, a rear foot rod, a handle group and an elastic member, the handle group includes a lower handle tube and an upper handle tube rotatably provided on the upper end of the lower handle tube, the lower handle tube is provided with a sliding member that can slide along its axial direction, a locking assembly is provided between the lower handle tube and the sliding member for locking or unlocking the sliding member, and the lower end of the lower handle tube is hinged to the rear foot rod. In the middle, a transmission member is hinged between the sliding member and the upper part of the rear foot rod. The upper end of the front foot rod is hinged to the lower end of the transmission member and / or the upper end of the rear foot rod. An elastic member is provided between the front foot rod and the rear foot rod. When the stroller is folded, the front foot rod and the rear foot rod automatically move together under the elastic pull of the elastic member. At the same time, the transmission member drives the sliding member to slide downward along the axial direction of the lower handlebar tube, thereby driving the lower handlebar tube to move toward the rear foot rod, thereby completing the folding of the entire stroller frame. This is very quick and convenient. Since the transmission member drives the sliding member to slide along the lower handlebar tube to achieve folding when the stroller is folded, the lower handlebar tube is of a fixed length. The length of the lower handlebar tube cannot be shortened when folding, making the structure after folding less compact and still relatively large in size. Therefore, the defect is very obvious and a solution is urgently needed. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the present invention is to provide a foldable baby stroller that can be folded quickly.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A foldable baby stroller for quick folding includes a handle assembly, a seat assembly, a front leg assembly and a rear leg assembly. The handle assembly includes a handle connecting rod and a U-shaped push-pull handle. The lower portion of the push-pull handle is rotatably connected to the top of the handle connecting rod via a rotating joint. An unlocking device is provided at the middle position of the push-pull handle. The rotating joint is provided with an upper locking device for locking the push-pull handle and the handle connecting rod. The unlocking device is driven and connected to the upper locking device via a first pull rope. The rear leg assembly includes a rear leg rod and a rotating seat rotatably connected to the middle and upper portion of the rear leg rod. The rotating seat is provided with an outer sleeve. The handle connecting rod The lower part of the rod is slidably inserted in the outer sleeve, and a lower locking device is provided between the handle connecting rod and the outer sleeve. The rotating joint is driven and connected to the lower locking device via a second pull rope. The seat group includes a backrest frame and a seat frame. The bottom of the backrest frame is installed at the rear end of the rotating seat, and one end of the seat frame is rotatably connected to the front end of the rotating seat. The front foot group includes a front foot rod, and the other end of the seat frame is rotatably connected to the middle part of the front foot rod. A connecting joint is installed on the upper part of the rear foot rod, and a transmission rod is hinged between the middle part of the handle connecting rod and the connecting joint, and the upper part of the front foot rod is rotatably connected to the connecting joint.

[0006] Furthermore, a lock hole is provided on one side of the top of the outer sleeve, and the lower locking device includes a fixed seat embedded in the lower part of the handle connecting rod, a locking block slidably connected to the fixed seat, and an elastic member arranged between the locking block and the fixed seat. The handle connecting rod is provided with a through hole, which is used to communicate with the lock hole. The locking block can extend into the lock hole through the through hole. The elastic member is used to provide a force toward the through hole to the locking block. The two ends of the second pull rope are respectively connected to the rotating joint and the locking block.

[0007] Furthermore, the fixing seat is provided with a sliding groove, the sliding groove is communicated with the through hole, and the locking block is slidably arranged in the sliding groove.

[0008] Furthermore, the fixing seat is provided with a guide rope channel, which is connected to the slide groove, and the guide rope channel guides and positions the second pull rope.

[0009] Furthermore, the front end of the connecting joint is detachably connected to an armrest.

[0010] Furthermore, the unlocking device is elastically provided with an unlocking pressing piece, and the unlocking pressing piece is drivingly connected to the upper locking device via a first pull rope.

[0011] The beneficial effects of the present utility model are as follows: in actual application, when the foldable baby carriage is in the unfolded state, the handle connecting rod and the push-pull handle are in the unfolded state, the upper locking device locks the handle connecting rod and the push-pull handle, the handle connecting rod and the outer sleeve are in the extended state, the lower locking device locks the handle connecting rod and the outer sleeve, and the seat frame, front leg group and rear leg group are in the unfolded state. When the folding stroller needs to be folded, the user operates the unlocking device, so that the unlocking device pulls the upper locking device via the first pull rope, so that the upper locking device is unlocked, and the push-pull handle can be rotated and folded relative to the handle connecting rod together with the rotating joint. During the rotation of the rotating joint, the rotating joint pulls the lower locking device via the second pull rope, so that the lower locking device is unlocked, and the handle connecting rod can slide into the outer sleeve, and the inwardly retracted and sliding handle connecting rod drives the transmission rod to swing downward in the direction close to the rear foot rod for folding. The swinging transmission rod pulls the handle connecting rod and the rotating seat to rotate, so that the handle connecting rod swings downward in the direction close to the rear foot rod for folding. The rotating rotating seat drives the backrest frame to swing downward in the direction close to the rear foot rod for folding, and the rotating rotating seat drives the seat frame to swing upward for folding, and the upwardly swinging folded seat frame drives the front foot rod to swing and fold in the direction close to the rear foot rod until the folding stroller is completely in the folded state (such as Figure 2 The utility model can realize quick folding, and because the handle connecting rod and the outer sleeve can telescopically slide, after the lower locking device is unlocked, the handle connecting rod can slide into the outer sleeve and retract into the outer sleeve, thereby shortening the effective length of the handle connecting rod and the outer sleeve, making the structure of the folded baby stroller more compact and smaller in size. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model in an unfolded state.

[0013] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model in a folded state.

[0014] Figure 3 It is a cross-sectional view of the rotating seat, outer sleeve, lower locking device, handle connecting rod and rotating joint of the utility model.

[0015] Description of reference numerals:

[0016] 1. Handle assembly; 2. Seat assembly; 3. Front foot assembly; 4. Rear foot assembly; 5. Handle connecting rod; 6. Push-pull handle; 7. Rotating joint; 8. Unlocking device; 9. Upper locking device; 10. Rear foot rod; 11. Rotating seat; 12. Outer sleeve; 13. Lower locking device; 14. Second pull rope; 15. Backrest frame; 16. Seat frame; 17. Front foot rod; 18. Connecting joint; 19. Transmission rod; 20. Locking hole; 21. Fixed seat; 22. Locking block; 23. Elastic member; 24. Through hole; 25. Slide groove; 26. Guide rope channel; 27. Armrest; 28. Unlocking press member. DETAILED DESCRIPTION

[0017] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention.

[0018] like Figures 1 to 3 As shown, the utility model provides a foldable baby carriage for quick folding, which includes a handle group 1, a seat group 2, a front leg group 3 and a rear leg group 4. The handle group 1 includes a handle connecting rod 5 and a U-shaped push-pull handle 6. The lower part of the push-pull handle 6 is rotatably connected to the top of the handle connecting rod 5 via a rotating joint 7. An unlocking device 8 is provided at the middle position of the push-pull handle 6. The rotating joint 7 is provided with an upper locking device 9 for locking the push-pull handle 6 and the handle connecting rod 5. The unlocking device 8 is driven and connected to the upper locking device 9 via a first pull rope. The rear leg group 4 includes a rear foot rod 10 and a rotating seat 11 rotatably connected to the middle and upper part of the rear foot rod 10. The rotating seat 11 is provided with an outer sleeve 12. The lower part of the handle connecting rod 5 is slidably inserted in the outer sleeve 12, and a lower locking device 13 is provided between the handle connecting rod 5 and the outer sleeve 12. The rotating joint 7 is driven and connected to the lower locking device 13 via the second pull rope 14. The seat group 2 includes a backrest frame 15 and a seat frame 16. The bottom of the backrest frame 15 is installed at the rear end of the rotating seat 11, and one end of the seat frame 16 is rotatably connected to the front end of the rotating seat 11. The front foot group 3 includes a front foot rod 17, and the other end of the seat frame 16 is rotatably connected to the middle part of the front foot rod 17. A connecting joint 18 is installed on the upper part of the rear foot rod 10. A transmission rod 19 is hinged between the middle part of the handle connecting rod 5 and the connecting joint 18, and the upper part of the front foot rod 17 is rotatably connected to the connecting joint 18; the lower locking device 13 is used to lock the handle connecting rod 5 and the outer sleeve 12; specifically, the unlocking device 8, the upper locking device 9, the rotating joint 7 and the connecting joint 18 can all adopt the relevant structures in the existing baby carriage, which will not be repeated here.

[0019] In practical application, when the foldable baby carriage is in the unfolded state (such as Figure 1When the folding stroller is in the unfolded state (as shown in FIG. 1), the handle connecting rod 5 and the push-pull handle 6 are in the unfolded state, the upper locking device 9 locks the handle connecting rod 5 and the push-pull handle 6, the handle connecting rod 5 and the outer sleeve 12 are in the extended state, the lower locking device 13 locks the handle connecting rod 5 and the outer sleeve 12, and the seat frame 16, the front leg group 3 and the rear leg group 4 are in the unfolded state. When the folding stroller needs to be folded, the user operates the unlocking device 8, so that the unlocking device 8 pulls the upper locking device 9 through the first pull rope, so that the upper locking device 9 is unlocked, and the push-pull handle 6 can be rotated and folded relative to the handle connecting rod 5 through the rotating joint 7. During the rotation of the rotating joint 7, the rotating joint 7 pulls the lower locking device 13 through the second pull rope 14, so that the lower locking device 13 is unlocked, and the handle connecting rod 5 can slide inwardly into the outer sleeve 12. The inwardly retracted sliding handle connecting rod 5 drives the transmission rod 19 to swing and fold downwardly towards the rear leg rod 10, the swinging transmission rod 19 drives the handle connecting rod 5 and the rotating seat 11 to rotate, so that the handle connecting rod 5 swings and folds downwardly towards the rear leg rod 10, the rotating rotating seat 11 drives the backrest frame 15 to swing and fold downwardly towards the rear leg rod 10, and the rotating rotating seat 11 drives the seat frame 16 to swing and fold upwardly, the upwardly folded seat frame 16 drives the front leg rod 17 to swing and fold towards the rear leg rod 10, and the folding stroller is completely in the folded state (as shown in FIG. 2). Figure 2 The folding stroller can be quickly folded, and since the handle connecting rod 5 and the outer sleeve 12 can be telescopically slid, after the lower locking device 13 is unlocked, the handle connecting rod 5 can slide into the outer sleeve 12, the handle connecting rod 5 is retracted into the outer sleeve 12, so as to shorten the effective length of the handle connecting rod 5 and the outer sleeve 12, so that the structure of the folded folding stroller is more compact and the volume is smaller.

[0020] As Figure 3As shown, in this embodiment, a lock hole 20 is provided on one side of the top of the outer sleeve 12, and the lower locking device 13 includes a fixed seat 21 embedded in the lower part of the handle connecting rod 5, a locking block 22 slidably connected to the fixing seat 21, and an elastic member 23 arranged between the locking block 22 and the fixing seat 21. The handle connecting rod 5 is provided with a through hole 24, which is used to communicate with the lock hole 20. The locking block 22 can extend into the lock hole 20 through the through hole 24. The elastic member 23 is used to provide a force to the locking block 22 toward the through hole 24. The two ends of the second pull rope 14 are respectively connected to the rotating joint 7 and the locking block 22. When the foldable stroller is in the unfolded state, the elastic member 23 provides elastic force to the locking block 22, and the locking block 22 passes through the through hole 24 and extends into the locking hole 20. The locking block 22 locks the handle connecting rod 5 and the outer sleeve 12, so that the foldable stroller is stably in the unfolded state; when the foldable stroller needs to be folded, the rotating joint 7 pulls the second pull rope 14, and the second pull rope 14 pulls the locking block 22, so that the locking block 22 moves inward and compresses the elastic member 23 until the locking block 22 is separated from the locking block 22, so as to unlock the handle connecting rod 5 and the outer sleeve 12, and the handle connecting rod 5 can slide relative to the outer sleeve 12 to achieve the folding of the foldable stroller.

[0021] In this embodiment, the fixing base 21 is provided with a slide groove 25, which is connected to the through hole 24, and the locking block 22 is slidably arranged in the slide groove 25. The provision of the slide groove 25 makes the reciprocating movement of the locking block 22 more stable and smooth, and the structure of the locking block 22 and the fixing base 21 is compact.

[0022] In this embodiment, the fixing base 21 is provided with a guide rope channel 26, which is connected to the chute 25. The guide rope channel 26 guides and positions the second pull rope 14. Specifically, the second pull rope 14 extends into the chute 25 through the guide rope channel 26 and connects to the locking block 22. The guide rope channel 26 guides and positions the second pull rope 14, thereby improving the working stability and positioning accuracy of the second pull rope 14.

[0023] In this embodiment, the front end of the connecting joint 18 is detachably connected to an armrest 27. The provision of the armrest 27 improves the safety of use.

[0024] In this embodiment, the unlocking device 8 is elastically provided with an unlocking pressing member 28, which is drivably connected to the upper locking device 9 via a first pull cord. When folding the foldable stroller, the entire foldable stroller can be folded by simply pressing the unlocking pressing member 28 and pushing the push-pull handle 6 inward, causing the push-pull handle 6 to rotate inward, thereby achieving one-touch quick folding.

[0025] All technical features in this embodiment can be freely combined according to actual needs.

[0026] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A foldable baby stroller with a quick folding function, characterized by: The invention comprises a handle group (1), a seat group (2), a front foot group (3) and a rear foot group (4); the handle group (1) comprises a handle connecting rod (5) and a U-shaped push-pull handle (6); the lower part of the push-pull handle (6) is rotatably connected to the top of the handle connecting rod (5) via a rotating joint (7); an unlocking device (8) is provided at the middle position of the push-pull handle (6); the rotating joint (7) is provided with an upper locking device (9) for locking the push-pull handle (6) and the handle connecting rod (5); the unlocking device (8) is driven and connected to the upper locking device (9) via a first pull rope; the rear foot group (4) comprises a rear foot rod (10) and a rotating seat (11) rotatably connected to the middle and upper part of the rear foot rod (10); the rotating seat (11) is provided with an outer sleeve (12); the lower part of the handle connecting rod (5) is slidably inserted into the outer sleeve (12); ), a lower locking device (13) is provided between the handle connecting rod (5) and the outer sleeve (12), the rotating joint (7) is driven and connected to the lower locking device (13) via a second pull rope (14), the seat group (2) includes a backrest frame (15) and a seat frame (16), the bottom of the backrest frame (15) is installed at the rear end of the rotating seat (11), one end of the seat frame (16) is rotatably connected to the front end of the rotating seat (11), the front foot group (3) includes a front foot rod (17), the other end of the seat frame (16) is rotatably connected to the middle part of the front foot rod (17), a connecting joint (18) is provided on the upper part of the rear foot rod (10), a transmission rod (19) is hinged between the middle part of the handle connecting rod (5) and the connecting joint (18), and the upper part of the front foot rod (17) is rotatably connected to the connecting joint (18).

2. The foldable stroller for children with quick folding according to claim 1, characterized in that: A lock hole (20) is provided on one side of the top of the outer sleeve (12), and the lower locking device (13) includes a fixing seat (21) embedded in the lower part of the handle connecting rod (5), a locking block (22) slidably connected to the fixing seat (21), and an elastic member (23) arranged between the locking block (22) and the fixing seat (21). The handle connecting rod (5) is provided with a through hole (24), and the through hole (24) is used to communicate with the lock hole (20). The lock block (22) can extend into the lock hole (20) through the through hole (24). The elastic member (23) is used to provide a force to the lock block (22) toward the through hole (24). The two ends of the second pull rope (14) are respectively connected to the rotating joint (7) and the lock block (22).

3. The foldable stroller for children with quick folding according to claim 2, characterized in that: The fixing seat (21) is provided with a sliding groove (25), the sliding groove (25) is communicated with the through hole (24), and the locking block (22) is slidably arranged in the sliding groove (25).

4. The foldable stroller for children with quick folding according to claim 3, characterized in that: The fixing seat (21) is provided with a guide rope channel (26), the guide rope channel (26) is communicated with the slide groove (25), and the guide rope channel (26) guides and positions the second pull rope (14).

5. The foldable stroller for children with quick folding according to claim 1, characterized in that: The front end of the connecting joint (18) is detachably connected to an armrest (27).

6. The foldable stroller for children with quick folding according to claim 1, characterized in that: The unlocking device (8) is elastically provided with an unlocking pressing piece (28), and the unlocking pressing piece (28) is drivingly connected to the upper locking device (9) via a first pull rope.

Images