Wheelchair capable of being locked by leaning on side conveniently

Abstract

The utility model relates to a wheelchair convenient to lock on the side, which comprises a wheelchair main body, and a lock catch structure arranged close to the front side and a shaft body structure arranged close to the rear side are connected to the end face of one side of the wheelchair main body; the wheelchair further comprises a lock body structure and a hook structure, the lock body structure and the hook structure are used for being fixedly connected to the side leaning body, and the lock body structure and the hook structure are arranged in a left-right spaced mode and correspond to the lock catch structure and the hook structure respectively. The locking structure and the lock body structure on the front side are buckled, so that the wheelchair main body is locked on the side leaning body; according to the wheelchair, the wheelchair can be stably locked on the side edge of the side leaning body in a first-buckling and second-locking mode, connection is firm, disassembly and assembly operation is easy, the gap between the wheelchair and the side leaning body after the wheelchair is leaned against the side is better reduced, and the stability of leaning against the side is better guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of wheelchairs, in particular to a wheelchair which is convenient to lock against the edge. Background Art

[0002] With the development of technology, wheelchairs have begun to be increasingly favored by people. The barrier-free multi-functional wheelchair can better overcome problems such as high labor intensity and high nursing labor cost for the elderly, and can give users an easy life enjoyment and enable them to independently master their daily life.

[0003] The current usage method of wheelchairs is as in the prior art: as shown in a combined nursing appliance of a wheelchair and a nursing bed in a Chinese patent document with the patent number CN201811287096.9, which mainly includes a bed frame and a foldable wheelchair. The bed frame at least has a first half bed board located on one side half of the bed frame, and a wheelchair accommodation and unfolding space is arranged on the other side half of the bed frame. The foldable wheelchair forms the second half bed board. When forming a complete nursing bed, when this wheelchair is against the edge, the wheelchair slide bar slides into the wheelchair slide bar pushing groove and cooperates with several rollers to achieve locking.

[0004] However, such a locking method has the following problems: First, generally, only the front side of the wheelchair adopts a universal caster structure, so the wheelchair cannot achieve lateral translation. It is difficult to quickly align the wheelchair slide bar with the wheelchair slide bar pushing groove when against the edge, and it is necessary to repeatedly adjust the position many times, which is time-consuming and laborious. Second, after the wheelchair slide bar and the wheelchair slide bar pushing groove are matched, the two cannot be tightly matched, so there is a large gap between one half bed board and the second half bed board, affecting the comfort of the user lying flat. At this time, it is necessary to improve the prior art to make the locking of the wheelchair and the side-leaning body more convenient. Summary of the Invention

[0005] The purpose of the utility model is to solve the above existing problems and provide a wheelchair which is convenient to lock against the edge and has a simple and reasonable structure.

[0006] The wheelchair which is convenient to lock against the edge includes a wheelchair main body. A lock structure arranged at the front side and a shaft structure arranged at the rear side are connected to one side end surface of the wheelchair main body; it also includes a lock body structure and a hook structure which are used for fixedly connecting to a side-leaning body. The lock body structure and the hook structure are arranged at intervals left and right and are respectively arranged corresponding to the lock structure and the hook structure. The wheelchair main body is first hinged to the hook structure through the shaft structure at the rear side, and then buckled to the lock body structure through the lock structure at the front side to realize the locking of the wheelchair main body against the side-leaning body.

[0007] The purpose of the utility model can also be solved by adopting the following technical measures:

[0008] As a more specific solution, it further includes an unlocking structure for triggering the unlocking of the lock body structure. The unlocking structure is in transmission connection with the lock body structure and is connected to the side support body or the wheelchair main body.

[0009] As a further solution, the hook structure includes a hook seat, and a chute is formed on the hook seat and opens towards the lock body structure; the shaft structure includes a roller extending outward, and a shaft is connected to the roller and is hinged in the chute through the opening.

[0010] As a further solution, the lock buckle structure includes a lock buckle seat, and a lock mouth ring is connected to the lock buckle seat; the lock body structure includes a lock body housing, and a lock hole suitable for the lock mouth ring to protrude into is formed on the lock body housing. A fastener is rotatably connected inside the lock body housing. One end of the fastener is provided with a buckling part for hooking the lock mouth ring, and the other end is in transmission connection with the unlocking structure.

[0011] As a further solution, the roller includes a pair of L-shaped roller support ears arranged up and down. One section of the L-shaped roller support ears is welded to the rear side of the wheelchair main body, and the other section extends outward from the wheelchair main body, and a roller is arranged between the ends. A roller is rotatably connected to the roller, and the roller and the roller form a shaft body.

[0012] As a further solution, long groove sides and short groove sides are respectively arranged on both sides of the chute. The short groove side is arranged close to the wheelchair main body, and an introduction bevel is arranged at one end of the short groove side close to the opening.

[0013] As a further solution, the unlocking structure includes a switch fixing seat, a switch foot pedal and a brake wire. The rear side of the switch foot pedal is rotatably connected to the switch fixing seat. One end of the brake wire is connected to the switch foot pedal, and the other end is connected to the other end of the fastener. And a spring for driving the fastener to reset is sleeved on the brake wire.

[0014] As a further solution, the side support body is formed by a bed body, or a wall, or a guardrail.

[0015] As a further solution, the wheelchair main body includes a seat frame. A lock buckle structure and a shaft structure are connected to one side end face of the seat frame. A front universal wheel set is arranged at the bottom of the seat frame corresponding to the lock buckle structure, and a rear caster set is arranged corresponding to the shaft structure.

[0016] As a further solution, the wheelchair main body further includes a backrest frame, a foot support frame and a footrest frame. The backrest frame is rotatably hinged to the rear side of the seat frame, the foot support frame is rotatably hinged to the front side of the seat frame, and the footrest frame is rotatably hinged to the front side of the foot support frame. The backrest frame, the seat frame and the foot support frame are flattened into a bed body shape with the footrest frame through manual or electric means.

[0017] The beneficial effects of the present utility model are as follows:

[0018] The wheelchair that is convenient for locking against the edge. This wheelchair can stably lock on the side of the side-leaning body through the method of first buckling and then locking. The connection is firm, the disassembly and assembly operations are simple, and the gap between the wheelchair and the side-leaning body after the wheelchair leans against the edge is better reduced, and the stability of leaning against the edge is better guaranteed. Brief Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the cooperation structure between the wheelchair and the side-leaning body in the present utility model.

[0020] Figure 2 It is a schematic diagram of the main structure of the wheelchair in the present utility model.

[0021] Figure 3 It is a schematic diagram of the cooperation structure between the shaft structure and the hook structure in the present utility model.

[0022] Figure 4 It is a schematic diagram of the buckle structure in the present utility model.

[0023] Figure 5 It is a schematic cross-sectional view of the lock body structure in the present utility model.

[0024] Figure 6 It is a schematic diagram of the unlocking structure in the present utility model. Detailed Embodiment

[0025] The present utility model will be further described below with reference to the drawings and embodiments.

[0026] As Figures 1 to 6 shown, the wheelchair that is convenient for locking against the edge includes a wheelchair main body 1. On one side end face of the wheelchair main body 1, a buckle structure 2 arranged at the front side and a shaft structure 3 arranged at the rear side are connected; it also includes a lock body structure 4 and a hook structure 5 that are fixedly connected to the side-leaning body X. The lock body structure 4 and the hook structure 5 are arranged at intervals left and right and are respectively arranged corresponding to the buckle structure 2 and the hook structure 5. The wheelchair main body 1 is first hinged to the hook structure 5 through the shaft structure 3 at the rear side, and then buckled to the lock body structure 4 through the buckle structure 2 at the front side, so as to realize the locking of the wheelchair main body 1 against the side-leaning body X.

[0027] This wheelchair first uses the flexibility of the front universal wheel group 15 to continuously adjust the position of the rear side of the wheelchair during the backward movement of the wheelchair, so that the shaft structure 3 is quickly hinged with the hook structure 5, so that the shaft structure 3 forms a rotation axis, and the locking structure 2 and the lock body structure 4 are kept in a concentric circle route, and then the front side of the wheelchair is pushed to the side. At the same time, the locking structure 2 and the lock body structure 4 are immediately engaged, so that the wheelchair can be stably locked on the side of the side leaning body X. The connection is firm and the disassembly and assembly operation is simple, which better reduces the gap between the wheelchair and the side leaning body X after it is pulled to the side, and better ensures the stability of pulling to the side.

[0028] In other embodiments, the positions of the locking structure 2 and the lock body structure 4 can be swapped with each other, the positions of the shaft structure 3 and the hook structure 5 can be swapped with each other, and even the positions of the locking structure 2 and the lock body structure 4 are swapped with the positions of the shaft structure 3 and the hook structure 5.

[0029] It also includes an unlocking structure 6 for triggering the unlocking of the lock body structure 4, and the unlocking structure 6 is transmission-connected to the lock body structure 4, and the unlocking structure 6 is connected to the side leaning body X or the wheelchair body 1; when the wheelchair needs to be disassembled from the side leaning body X, it is only necessary to drive the unlocking structure 6 to unlock the front side of the wheelchair, and then slide the shaft structure 3 out of the hook structure 5 to complete the unlocking, which is simple to operate.

[0030] Specifically, the hook structure 5 includes a hook seat 51, and a slide groove 52 opening toward the lock body structure 4 is provided on the hook seat 51; the shaft structure 3 includes a roller bracket 31 extending outward, and the roller bracket 31 is connected to a shaft body 32 hinged in the slide groove 52 through an opening; the slide groove 52 facilitates the cooperation between the shaft body 32 and the hook seat 51, and after the shaft body 32 slides into the slide groove 52, the rotation axis function can be realized.

[0031] The lock structure 2 includes a lock seat 21, and a lock ring 22 is connected to the lock seat 21; the lock body structure 4 includes a lock body shell 41, and a lock hole 42 suitable for the lock ring 22 to protrude is opened on the lock body shell 41, and a fastener 43 is rotatably connected in the lock body shell 41, and one end of the fastener 43 is provided with a buckle part 431 for hooking the lock ring 22, and the other end is transmission connected to the unlocking structure 6; after the lock ring 22 is pushed into the lock hole 42, the buckle part 431 of the fastener 43 is buckled into the hollow position of the lock ring 22 under the elastic action to achieve the final locking.

[0032] The roller bracket 31 includes a pair of L-shaped roller lugs 311 arranged vertically. One section of the L-shaped roller lug 311 is welded to the rear side of the wheelchair main body 1, and the other section extends outward from the wheelchair main body 1, and a roller 321 is provided between the ends. A roller 322 is rotatably connected to the roller 321, and the roller 322 and the roller 321 form a shaft body 32. When the roller 322 rotates with the shaft body 32 as the rotation axis, the rotation reduces friction, and the wheelchair rotates more smoothly and quietly.

[0033] On both sides of the chute 52, a long groove side 521 and a short groove side 522 are respectively provided. The short groove side 522 is arranged on the side close to the wheelchair main body 1, and an inlet bevel 523 is provided at one end of the short groove side 522 close to the opening.

[0034] The long groove side 521 and the short groove side 522 are used to make the chute 52 form an obliquely opening, which helps the shaft body 32 to slide into the chute 52, and the inlet bevel 523 helps the shaft body 32 to slide into the deepest part of the chute 52. At this time, the chute 52 and the shaft body 32 form a clearance fit. When rotating as the rotation axis, the wheelchair will not have a loose gap, and it can ensure that the locking structure 2 and the lock body structure 4 are on a concentric circle route.

[0035] The unlocking structure 6 includes a switch fixing seat 61, a switch pedal 62 and a brake cable 63. The rear side of the switch pedal 62 is rotatably connected to the switch fixing seat 61. One end of the brake cable 63 is connected to the switch pedal 62, and the other end is connected to the other end of the fastener 43. And a spring for driving the fastener 43 to reset is sleeved on the brake cable 63.

[0036] When unlocking, the user only needs to step on the switch pedal 62 to make the switch pedal 62 pull the brake cable 63, and the brake cable 63 will drive the fastener 43. The fastener 43 releases the lock on the lock ring 22, and the caregiver can pull the front side of the wheelchair away from the side support body X. After the user releases the switch pedal 62, under the elastic potential energy of the spring, the fastener 43 can be driven to automatically reset and wait for the next fastening.

[0037] The side support body X is formed by a bed body, or a wall, or a guardrail, so that the locking structure 2, the shaft body structure 3, the lock body structure 4 and the hook structure 5 can be applied to the locking occasions of nursing beds, household beds and shared wheelchairs. Only need to purchase the above structures and assemble them to the corresponding positions respectively to realize locking the wheelchair against the side.

[0038] The wheelchair main body 1 includes a seat frame 11. A locking structure 2 and a shaft body structure 3 are connected to one side end face of the seat frame 11. A front universal wheel set 15 is provided at the bottom of the seat frame 11 corresponding to the locking structure 2, and a rear caster set 16 is provided corresponding to the shaft body structure 3.

[0039] The wheelchair main body 1 further includes a backrest frame 12, a footrest bracket 13 and a footrest frame 14. When the wheelchair is applied to a nursing bed, the backrest frame 12 is rotatably hinged to the rear side of the seat frame 11, the footrest bracket 13 is rotatably hinged to the front side of the seat frame 11, and the footrest frame 14 is rotatably hinged to the front side of the footrest bracket 13. The backrest frame 12, the seat frame 11, and the footrest bracket 13 are flattened manually or electrically to be flattened with the footrest frame 14 to form a bed shape. The wheelchair main body 1 with this structure enables the wheelchair to be unfolded into a bed shape and combined into a complete nursing bed.

[0040] The above is the preferred solution of the present invention, which shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A wheelchair that can be easily locked by the side, comprising a wheelchair body (1), characterized in that: The wheelchair body (1) is connected to a locking structure (2) arranged on the front side and an axle structure (3) arranged on the rear side on one side end surface; it also includes a locking structure (4) and a hook structure (5) for being fixedly connected to the side leaning body (X); the locking structure (4) and the hook structure (5) are arranged at intervals on the left and right and are respectively arranged corresponding to the locking structure (2) and the hook structure (5); the wheelchair body (1) is first hingedly connected to the hook structure (5) through the axle structure (3) on the rear side, and then is buckled with the locking structure (2) and the lock structure (4) on the front side, so that the wheelchair body (1) is locked against the side leaning body (X).

2. The wheelchair that is convenient to lock against the side according to claim 1, characterized in that: It also comprises an unlocking structure (6) for triggering the unlocking of the lock body structure (4), wherein the unlocking structure (6) is in transmission connection with the lock body structure (4), and the unlocking structure (6) is connected to the side leaning body (X) or the wheelchair body (1).

3. The wheelchair that is convenient to lock against the side according to claim 1, characterized in that: The hook structure (5) comprises a hook seat (51), and a slide groove (52) opening in the direction of the lock body structure (4) is provided on the hook seat (51); the shaft structure (3) comprises a roller bracket (31) extending outward, and the roller bracket (31) is connected to a shaft body (32) hinged in the slide groove (52) through an opening.

4. The wheelchair that is convenient to lock against the side according to claim 2, characterized in that: The lock structure (2) comprises a lock seat (21), and a lock ring (22) is connected to the lock seat (21); the lock body structure (4) comprises a lock body shell (41), and a lock hole (42) suitable for the lock ring (22) to protrude is opened on the lock body shell (41), and a fastener (43) is rotatably connected inside the lock body shell (41), and one end of the fastener (43) is provided with a buckle portion (431) for hooking the lock ring (22), and the other end is drivingly connected to the unlocking structure (6).

5. The wheelchair that is convenient to lock against the side according to claim 3, characterized in that: The roller bracket (31) comprises a pair of L-shaped roller support ears (311) arranged up and down, one end of the L-shaped roller support ear (311) is welded to the rear side of the wheelchair body (1), the other end extends outward from the wheelchair body (1), and a roller (321) is provided between the ends, a roller (322) is rotatably connected to the roller (321), and the roller (322) and the roller (321) form a shaft (32).

6. The wheelchair that is convenient to lock against the side according to claim 3, characterized in that: A long groove edge (521) and a short groove edge (522) are respectively provided on both sides of the slide groove (52); the short groove edge (522) is arranged close to one side of the wheelchair body (1); and an introduction bevel edge (523) is provided at one end of the short groove edge (522) close to the opening.

7. The wheelchair conveniently locked against the side of the vehicle according to claim 4, characterized in that: The unlocking structure (6) comprises a switch fixing seat (61), a switch pedal (62) and a brake line (63); the rear side of the switch pedal (62) is rotatably connected to the switch fixing seat (61); one end of the brake line (63) is connected to the switch pedal (62) and the other end is connected to the other end of the fastener (43); and a spring for driving the fastener (43) to return to its original position is sleeved on the brake line (63).

8. The wheelchair that is convenient to lock against the side of the wheelchair according to claim 1, characterized in that: The side leaning body (X) is formed by a bed body, a wall, or a guardrail.

9. The wheelchair conveniently locked against the side of the vehicle according to claim 1, characterized in that: The wheelchair body (1) comprises a seat frame (11), a locking structure (2) and an axle structure (3) being connected to one side end surface of the seat frame (11), a front universal wheel set (15) being provided at the bottom of the seat frame (11) corresponding to the locking structure (2), and a rear caster set (16) being provided corresponding to the axle structure (3).

10. The wheelchair conveniently locked against the side of the vehicle according to claim 9, characterized in that: The wheelchair body (1) further comprises a back frame (12), a foot support frame (13) and a pedal frame (14); the back frame (12) is rotatably hinged to the rear side of the seat frame (11); the foot support frame (13) is rotatably hinged to the front side of the seat frame (11); the pedal frame (14) is rotatably hinged to the front side of the foot support frame (13); the back frame (12), the seat frame (11) and the foot support frame (13) are flattened into a bed shape together with the pedal frame (14) by manual or electric flattening.

Images