Foldable electric wheelchair

Abstract

The utility model relates to the technical field of electric wheelchairs, in particular to a foldable electric wheelchair which comprises a base, idler wheels are installed on the two sides of the base, an electric telescopic rod is fixedly installed in the middle of the top end of the base, and a seat plate is installed at the top end of the electric telescopic rod. And guide telescopic rods are mounted at four corners between the seat plate and the base. The chair has the advantages that the backup plate is in buffering connection with the abutting plate through the first connecting rod and the second spring, buffering contact between the back of a passenger and the backup plate can be kept, and collision is reduced; the handrails are detachably and rotatably mounted at the top ends of the two sides of the seat plate through the second connecting rods, so that the placement angles of the handrails can be rotated through the second connecting rods according to the requirements of a passenger, and the passenger can adapt to the placement of arms.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric wheelchair technical field especially relates to a foldable electric wheelchair. BACKGROUND

[0002] A wheelchair is a device used to help people with mobility difficulties move around, typically consisting of a seat, wheels, armrests, and footrests. It provides physical support and balance, allowing users to move independently indoors or outdoors. The design and functionality of a wheelchair can be adjusted according to the user's needs and physical condition, such as adjustable seat height, backrest angle, armrest height, etc. In addition, some wheelchairs are equipped with special features, such as electric drive, brake system, anti-tip device, etc., to improve the safety and convenience of users.

[0003] A general wheelchair is usually composed of a wheelchair frame, wheels, a brake device, and a seat. A hand-operated wheelchair adds a hand-operated device to the general wheelchair, while an electric wheelchair adds an electronic power-assisted system to the general wheelchair, reducing the physical exertion of the user.

[0004] Therefore, a foldable electric wheelchair is proposed.

[0005] For example, the prior art Chinese patent publication "CN114767406 A" provides a foldable electric wheelchair, which includes a wheelchair body, an electric drive device, a dual-power supply control device, and a control device. The wheelchair body includes a foldable wheelchair frame, which includes a stand and a folding frame. The number of stands is two, and the two stands are symmetrically arranged on both sides of the folding frame. A flexible backrest and a flexible seat cushion are arranged between the two stands. The folding frame can drive the two stands to move towards each other.

[0006] The device can stably provide power through the dual-power supply control device, and cooperate with the electric drive device and the control device to facilitate driving operation. Through the foldable wheelchair frame, on the one hand, it can be folded to effectively save space and facilitate transportation and storage when not in use. On the other hand, the folding structure is symmetrical, and the folding and opening operations are convenient.

[0007] The existing foldable electric wheelchair has a fixed backrest part that is rigid and hard to contact or bump against the back of the rider. There is no buffer structure on the back of the backrest to maintain a cushioned contact between the backrest of the wheelchair and the back of the rider. At the same time, the armrest part of the electric wheelchair is fixedly connected and inconvenient to rotate and tilt at different angles for the comfort of the rider. SUMMARY

[0008] The utility model discloses a folding electric wheelchair which can solve the problem of hard contact or collision between the backrest and the back of the passenger in the prior art.

[0009] To achieve the above object, the utility model provides the following technical scheme.

[0010] The utility model discloses a folding electric wheelchair which can solve the problem of hard contact or collision between the backrest and the back of the passenger in the prior art.

[0011] Further, the bottom end of the backrest is provided with a second connecting hole, the second connecting hole is inserted with a second connecting rod, the surface of the second connecting rod and the position of the second connecting hole are connected with a second nut, and the outer end of the second connecting rod is fixed with a handrail plate.

[0012] Further, the bottom end of the backrest is provided with a second connecting hole, the second connecting hole is inserted with a second connecting rod, the surface of the second connecting rod and the position of the second connecting hole are connected with a second nut, and the outer end of the second connecting rod is fixed with a handrail plate.

[0013] Further, the bottom end of the backrest is provided with a second connecting hole, the second connecting hole is inserted with a second connecting rod, the surface of the second connecting rod and the position of the second connecting hole are connected with a second nut, and the outer end of the second connecting rod is fixed with a handrail plate.

[0014] Further, the bottom end of the backrest is provided with a second connecting hole, the second connecting hole is inserted with a second connecting rod, the surface of the second connecting rod and the position of the second connecting hole are connected with a second nut, and the outer end of the second connecting rod is fixed with a handrail plate.

[0015] Further, the abutting plate is a rectangular plate structure and is vertically arranged, the connecting slot is a U-shaped structure and is vertically arranged, and the mounting frame is a rectangular frame structure and is horizontally arranged.

[0016] Further, the plug-in rod is a rectangular rod structure and is horizontally arranged at the bottom end of the seat plate, the first connecting hole is a threaded hole structure, and the bolt is vertically arranged with the top end abutting against the bottom end of the plug-in rod.

[0017] Further, the second connecting hole is a threaded hole structure and is horizontally arranged, the second connecting rod is a threaded rod structure and is horizontally arranged, the second nut abuts against the two sides of the backrest, and the handrail plate is a rectangular plate structure and is horizontally arranged at the top end of the seat plate.

[0018] The utility model provides a kind of foldable electric wheelchair, beneficial effect lies in:

[0019] 1.The utility model discloses between seat plate and base install electric telescopic rod, and set up guide telescopic rod in the four around of electric telescopic rod, and in the surface of guide telescopic rod, first spring is connected, to improve the cushioning performance of seat plate, while, on the outside of backrest, by plug-in rod detachable adjustable installation abutting plate, and the outside of backrest is fixed first connecting rod, and in the surface of first connecting rod, second spring is connected, so, backrest is connected between first connecting rod and second spring and abutting plate, can keep the cushioning contact between the back of occupant and backrest, reduce knock.

[0020] 2.The utility model discloses on the two sides top end of seat plate, by second connecting rod rotatable installation handrail, so, according to the need of occupant, the placement angle of handrail is rotated by second connecting rod, to facilitate the arm of occupant. ACCURACY

[0021] Figure 1 It is the whole structure schematic diagram of the utility model;

[0022] Figure 2 It is the bottom view of the utility model Figure 1 ;

[0023] Figure 3 It is the bottom view of the utility model Figure 1 ;

[0024] Figure 4 It is the handrail part schematic diagram of the utility model Figure 1 ;

[0025] Figure 5 It is the abutting plate part schematic diagram of the utility model Figure 1 .

[0026] In the figure: 1, base; 2, roller; 3, first spring; 4, guide telescopic rod; 5, handrail; 6, seat plate; 7, back plate; 8, first nut; 9, first connecting rod; 10, connecting groove; 11, abutting plate; 12, electric telescopic rod; 13, rotating column; 14, mounting frame; 15, second connecting rod; 16, second nut; 17, plug-in rod; 18, bolt; 19, mounting frame; 20, gasket; 21, second spring; 22, second connecting hole; 23, moving groove; 24, first connecting hole. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0028] Embodiment 1

[0029] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , a foldable electric wheelchair in the figure comprises a base 1, rollers 2 are installed on the two sides of the base 1, an electric telescopic rod 12 is fixedly installed at the top end of the base 1, a seat plate 6 is installed at the top end of the electric telescopic rod 12, guide telescopic rods 4 are installed at the four corners between the seat plate 6 and the base 1, and first springs 3 are sleeved on the surfaces of the guide telescopic rods 4.

[0030] One end of the top end of the seat plate 6 is fixedly provided with a mounting frame 14, a rotating column 13 is rotatably installed in the middle of the mounting frame 14, a back plate 7 is fixedly installed at the top end of the rotating column 13, a first connecting rod 9 is fixedly installed on the outer side of the back plate 7, a second spring 21 is slidably sleeved on the surface of the first connecting rod 9, a gasket 20 is connected to the outer end of the second spring 21, and an abutting plate 11 is installed on the outer side of the back plate 7.

[0031] A connecting groove 10 is formed in the surface of the abutting plate 11, the first connecting rod 9 slides through the connecting groove 10, a first nut 8 is connected to the surface of the first connecting rod 9 and located at the outer end of the connecting groove 10, a plug-in rod 17 is fixedly installed at the bottom end of the abutting plate 11, a mounting frame 19 is fixedly installed at one end of the bottom end of the seat plate 6, a moving groove 23 is arranged in the mounting frame 19, a first connecting hole 24 is formed in the bottom end of the moving groove 23, the plug-in rod 17 slides through the moving groove 23, and a bolt 18 is screwed in the first connecting hole 24.

[0032] The electric telescopic rod 12 is installed between the seat plate 6 and the base 1, the guide telescopic rod 4 is arranged around the electric telescopic rod 12, and the first spring 3 is sleeved on the surface of the guide telescopic rod 4, so that the buffering performance of the seat plate 6 can be improved, meanwhile, the abutting plate 11 is detachably and adjustably installed on the outer side of the backrest 7 through the insertion rod 17, the first connecting rod 9 is fixed on the outer side of the backrest 7, and the second spring 21 is sleeved on the surface of the first connecting rod 9, so that the backrest 7 is connected with the abutting plate 11 through the first connecting rod 9 and the second spring 21, and the buffering contact between the back of the occupant and the backrest 7 can be maintained, and the bumping is reduced.

[0033] The base 1 is in a rectangular structure and is horizontally arranged, the electric telescopic rod 12 is vertically arranged, and the guide telescopic rod 4 is vertically arranged on the outer side of the electric telescopic rod 12.

[0034] The seat plate 6 is in a rectangular structure and is horizontally arranged, the mounting frame 14 is in a C-shaped structure and is horizontally arranged, the rotating column 13 is horizontally arranged, and the backrest 7 is in a rectangular plate structure and is vertically arranged.

[0035] The first connecting rod 9 is in a threaded rod structure and is horizontally arranged, and the second spring 21 and the gasket 20 are located between the backrest 7 and the abutting plate 11.

[0036] The abutting plate 11 is in a rectangular plate structure and is vertically arranged, the connecting groove 10 is in a U-shaped structure and is vertically arranged, and the mounting frame 19 is in a rectangular frame structure and is horizontally arranged.

[0037] The insertion rod 17 is in a rectangular rod structure and is horizontally arranged at the bottom end of the seat plate 6, the first connecting hole 24 is in a threaded hole structure, and the bolt 18 is vertically arranged and abuts against the bottom end of the insertion rod 17.

[0038] Embodiment 2

[0039] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , one of the foldable electric wheelchairs shown in the drawings comprises a base 1, two sides of the base 1 are provided with wheels 2, the top end of the base 1 is fixedly provided with an electric telescopic rod 12, the top end of the electric telescopic rod 12 is provided with a seat plate 6, guide telescopic rods 4 are installed at four corners between the seat plate 6 and the base 1, and the surfaces of the guide telescopic rods 4 are sleeved with first springs 3.

[0040] The top end of the seat plate 6 is fixed with a mounting frame 14, the middle of the mounting frame 14 is rotatably installed with a rotating column 13, the top end of the rotating column 13 is fixedly installed with a backrest 7, the outer side of the backrest 7 is fixed with a first connecting rod 9, the surface of the first connecting rod 9 is slidably sleeved with a second spring 21, the outer end of the second spring 21 is connected with a gasket 20, and the outer side of the backrest 7 is installed with an abutting plate 11.

[0041] The surface of the abutting plate 11 is provided with a connecting groove 10, the first connecting rod 9 slides through the connecting groove 10, the surface of the first connecting rod 9 and the position outside the connecting groove 10 is connected with a first nut 8, the bottom end of the abutting plate 11 is fixed with a plug-in rod 17, the bottom end of the seat plate 6 is fixed with a mounting frame 19, the inside of the mounting frame 19 is provided with a moving groove 23, the bottom end of the moving groove 23 is provided with a first connecting hole 24, the plug-in rod 17 slides through the moving groove 23, and the inside of the first connecting hole 24 is screwed with a bolt 18.

[0042] The electric telescopic rod 12 is installed between the seat plate 6 and the base 1, the guide telescopic rod 4 is arranged around the electric telescopic rod 12, and the first spring 3 is sleeved on the surface of the guide telescopic rod 4, so that the buffering performance of the seat plate 6 can be improved, meanwhile, the abutting plate 11 is detachably and adjustably installed on the outer side of the backrest 7 through the plug-in rod 17, the first connecting rod 9 is fixed on the outer side of the backrest 7, and the second spring 21 is sleeved on the surface of the first connecting rod 9, in this way, the backrest 7 is connected with the abutting plate 11 through the first connecting rod 9 and the second spring 21, so that the buffering contact between the back of the occupant and the backrest 7 can be maintained, and the bumping is reduced.

[0043] The bottom end of the backrest 7 is provided with a second connecting hole 22, the second connecting rod 15 is inserted into the second connecting hole 22, the surface of the second connecting rod 15 and the position outside the second connecting hole 22 is connected with a second nut 16, and the outer end of the second connecting rod 15 is fixed with an armrest plate 5.

[0044] The armrest 5 is detachably and rotatably installed on the top end of the seat plate 6 through the second connecting rod 15, so that the placing angle of the armrest 5 can be rotated through the second connecting rod 15 according to the needs of the occupant, so as to adapt the placing of the arm of the occupant.

[0045] The second connecting hole 22 is a threaded hole structure and is horizontally arranged, the second connecting rod 15 is a threaded rod structure and is horizontally arranged, the second nut 16 abuts against the two sides of the backrest 7, and the armrest plate 5 is a rectangular plate structure and is horizontally arranged on the top end of the seat plate 6.

[0046] Working mode: install the electric telescopic rod 12 between the seat plate 6 and the base 1, and set the guide telescopic rod 4 around the electric telescopic rod 12, and the first spring 3 is sleeved on the surface of the guide telescopic rod 4, so that the buffering performance of the seat plate 6 can be improved, and the abutting plate 11 is detachably and adjustably installed on the outside of the backrest 7 through the plug-in rod 17, the first connecting rod 9 is fixed on the outside of the backrest 7, and the second spring 21 is sleeved on the surface of the first connecting rod 9, so that the backrest 7 is connected with the abutting plate 11 through the first connecting rod 9 and the second spring 21, and the buffering contact between the back of the occupant and the backrest 7 can be maintained, and the bumping is reduced.

[0047] The handrail 5 is detachably and rotatably installed on the both side top ends of the seat plate 6 through the second connecting rod 15, so that the placing angle of the handrail 5 can be rotated through the second connecting rod 15 according to the needs of the occupant, so as to facilitate the occupant to adapt the arm placing.

[0048] The above is only the preferred specific implementation mode of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A foldable electric wheelchair, comprising a base (1), characterized in that: Rollers (2) are installed on both sides of the base (1). An electric telescopic rod (12) is fixedly installed at the top center of the base (1). A seat plate (6) is installed at the top of the electric telescopic rod (12). Guide telescopic rods (4) are installed at the four corners between the seat plate (6) and the base (1). A first spring (3) is sleeved on the surface of the guide telescopic rod (4). A mounting bracket (14) is fixed at one end of the top of the seat plate (6). A rotating column (13) is rotatably installed in the middle of the mounting bracket (14). A backing plate (7) is fixedly installed at the top of the rotating column (13). A first connecting rod (9) is fixed on the outside of the backing plate (7). A second spring (21) is slidably sleeved on the surface of the first connecting rod (9). The outer end of the second spring (21) A gasket (20) is connected, and an abutment plate (11) is installed on the outer side of the back plate (7). A connecting groove (10) is opened on the surface of the abutment plate (11). The first connecting rod (9) slides through the connecting groove (10). A first nut (8) is connected to the surface of the first connecting rod (9) at the position of the outer end of the connecting groove (10). A plug rod (17) is fixed at the bottom end of the abutment plate (11). A mounting frame (19) is fixed at one end of the bottom end of the seat plate (6). A moving groove (23) is provided inside the mounting frame (19). A first connecting hole (24) is opened at the bottom end of the moving groove (23). The plug rod (17) slides through the moving groove (23). A bolt (18) passes through the internal thread of the first connecting hole (24).

2. The foldable electric wheelchair according to claim 1, characterized in that: The bottom of both sides of the backrest (7) has a second connecting hole (22). A second connecting rod (15) is inserted into the second connecting hole (22). A second nut (16) is connected to the surface of the second connecting rod (15) at the position of the outer end of the second connecting hole (22). A handrail plate (5) is fixed to the outer end of the second connecting rod (15).

3. The foldable electric wheelchair according to claim 1, characterized in that: The base (1) is a rectangular structure and is horizontally arranged. The electric telescopic rod (12) is vertically arranged, and the guide telescopic rod (4) is vertically arranged on the outside of the electric telescopic rod (12).

4. A foldable electric wheelchair according to claim 1, characterized in that: The seat plate (6) is a rectangular structure and is horizontally arranged. The mounting bracket (14) is a C-shaped structure and is horizontally arranged. The rotating column (13) is horizontally arranged. The backrest plate (7) is a rectangular plate structure and is vertically arranged.

5. A foldable electric wheelchair according to claim 1, characterized in that: The first connecting rod (9) is a threaded rod structure and is horizontally arranged. The second spring (21) and the gasket (20) are both located between the back plate (7) and the abutment plate (11).

6. A foldable electric wheelchair according to claim 1, characterized in that: The abutment plate (11) is a rectangular plate structure and is set vertically. The connecting groove (10) is a U-shaped structure and is set vertically. The mounting frame (19) is a rectangular frame structure and is set horizontally.

7. A foldable electric wheelchair according to claim 1, characterized in that: The plug rod (17) is a rectangular rod structure and is horizontally set at the bottom end of the seat plate (6). The first connecting hole (24) is a threaded hole structure. The bolt (18) is vertically set and its top end abuts against the bottom end of the plug rod (17).

8. A foldable electric wheelchair according to claim 2, characterized in that: The second connecting hole (22) is a threaded hole structure and is horizontally set. The second connecting rod (15) is a threaded rod structure and is horizontally set. The second nut (16) abuts against both sides of the backrest plate (7). The armrest plate (5) is a rectangular plate structure and is horizontally set on both sides of the top of the seat plate (6).

Images