Electric wheelchair

Abstract

The utility model provides an electric wheelchair, and belongs to the technical field of electric wheelchairs. The electric wheelchair comprises L-shaped frames, the number of the L-shaped frames is two, a cushion and an arm-chair are arranged between the two L-shaped frames, a battery box is fixedly installed on the bottom face of the cushion, a control switch is arranged above the cushion and electrically connected with the battery box, a driven wheel and a driving wheel are arranged below the cushion, and the driven wheel and the driving wheel are electrically connected with the battery box. The surfaces of the two sides of the arm-chair are movably connected to the surfaces of the inner sides of the two L-shaped frames in a clamped mode, the surfaces of the two sides of the arm-chair are movably connected with first supporting rods, and the other ends of the first supporting rods are movably connected with connecting frames. According to the utility model, the main body is made of the carbon fiber material which is lighter in weight and high in strength, so that the whole device has the advantages of light weight and high strength compared with the existing device in the actual use process.

Description

Technical Field

[0001] The utility model relates to the technical field of electric wheelchairs, and more specifically, to an electric wheelchair. Background Art

[0002] An electric wheelchair is an electric assistive tool designed to help people with limited mobility move around. Electric wheelchairs are usually powered by electric batteries and are equipped with components such as motors, controllers, seats, and joysticks. They can control actions such as forward movement, backward movement, turning, and stopping by operating a handle or other control devices. The emergence of electric wheelchairs has greatly improved the quality of life and independence of people with limited mobility and has become an indispensable part of modern society.

[0003] However, there are still some problems in the actual use of existing electric wheelchairs. For example, in the current wheelchair market, most foldable wheelchairs have complex structures and use materials such as steel pipes and aluminum materials for welding. The welding process is complicated and it is difficult to ensure the strength, which adds great difficulties to product quality assurance and assembly processes. Therefore, there is an urgent need for an electric wheelchair with a small folding volume, high strength, and light weight. Summary of the Utility Model

[0004] To make up for the above deficiencies, the utility model provides an electric wheelchair that overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model is implemented as follows:

[0006] The utility model provides an electric wheelchair, including an L-shaped frame. The number of the L-shaped frames is two. A seat cushion and a backrest are arranged between the two L-shaped frames. A battery box is fixedly installed on the bottom surface of the seat cushion. A control switch is arranged above the seat cushion. The control switch is electrically connected to the battery box. A driven wheel and a driving wheel are arranged below the seat cushion.

[0007] In a preferred embodiment, both side surfaces of the backrest are movably clamped on the inner side surfaces of the two L-shaped frames. Both side surfaces of the backrest are movably connected to a first support rod. The other end of the first support rod is movably connected to a connecting frame. A support pad is fixedly installed on the top surface of the connecting frame. The control switch is installed on the bottom surface of the support pad. Both ends of a second support rod are respectively movably connected to the top of the L-shaped frame and the bottom of the connecting frame.

[0008] In a preferred embodiment, a main frame body is arranged inside the L-shaped frame. A third connecting plate and a fourth connecting plate are movably clamped outside the main frame body. A vertical shaft is fixedly connected between the third connecting plate and the fourth connecting plate. An extension rod is movably connected between the third connecting plate and the fourth connecting plate. One end of the extension rod is movably connected to a first connecting plate.

[0009] In a preferred embodiment, one end of the first connecting plate is movably connected to one end of the L-shaped frame, the other end of the first connecting plate is movably clamped with a foot pad, and the driven wheel is fixedly installed at the bottom end of the first connecting plate.

[0010] In a preferred embodiment, the outer surface of the L-shaped frame is movably connected to a second connecting plate, a driving wheel is installed on the outer surface of the second connecting plate, an installation frame is arranged between the two driving wheels, and a protective wheel is arranged outside the installation frame.

[0011] In a preferred embodiment, the interior of the main frame body is a hollow structure, a handle is arranged outside the main frame body, a lock catch is installed inside the main frame body, a clamping block is movably clamped inside the main frame body, a rope is connected between the main frame body and the clamping block, pin shafts are inserted at both ends of the main frame body, and a spring is fixedly connected between one end of the pin shaft and one side surface of the clamping block.

[0012] In a preferred embodiment, a movable sleeve frame is arranged on one side of the L-shaped frame, the main frame body is inserted into the interior of the movable sleeve frame, and the pin shaft is inserted into the interior of the L-shaped frame.

[0013] The electric wheelchair provided by the present utility model has the following beneficial effects:

[0014] 1. Since the main body adopts a more lightweight and high-strength carbon fiber material, in the actual use process, the overall device can achieve the advantages of being lightweight and high-strength compared with the existing device.

[0015] 2. By holding the two handles and moving them towards each other, the clamping block can be driven to move towards the lock catch inside the main frame body under the drive of the rope, thereby driving the pin shaft to contract into the main frame body. At this time, the pin shaft disengages from the interior of the L-shaped frame, and then by simultaneously pushing the front and rear ends of the whole device towards the middle, the whole device can be folded, thus achieving the purpose of being able to fold the whole device more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is the overall three-dimensional view provided by the embodiment of the present utility model;

[0018] Figure 2Schematic bottom view structure of the mobile rack provided by the embodiment of the present utility model;

[0019] Figure 3 Schematic sectional structure of the box body provided by the embodiment of the present utility model;

[0020] Figure 4 Schematic rear view structure of the whole provided by the embodiment of the present utility model;

[0021] Figure 5 Schematic rear view structure of the whole provided by the embodiment of the present utility model.

[0022] In the figure: 1. L-shaped frame; 2. Cushion; 3. Reclining chair; 4. First support rod; 5. Connecting frame; 6. Support pad; 7. Second support rod; 8. Control switch; 9. Battery box; 10. First connecting plate; 11. Foot pad; 12. Driven wheel; 13. Second connecting plate; 14. Driving wheel; 15. Main frame body; 16. Third connecting plate; 17. Fourth connecting plate; 18. Extension rod; 19. Vertical shaft; 20. Mounting frame; 21. Protection wheel; 22. Grip frame; 23. Anti-slip sleeve; 24. Movable sleeve frame; 25. Lock; 26. Handle; 27. Clamping block; 28. Pin shaft; 29. Spring. Specific embodiments

[0023] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0024] Refer to Figures 1 - 5 , the present utility model provides a technical solution: an electric wheelchair, including two L-shaped frames 1. A cushion 2 and a reclining chair 3 are arranged between the two L-shaped frames 1. A battery box 9 is fixedly installed on the bottom surface of the cushion 2. A control switch 8 is arranged above the cushion 2. The control switch 8 is electrically connected to the battery box 9. A driven wheel 12 and a driving wheel 14 are arranged below the cushion 2.

[0025] A grip frame 22 is fixedly installed on the outside of the reclining chair 3. An anti-slip sleeve 23 is fixedly sleeved on the outer surface of the grip frame 22. The anti-slip sleeve 23 is a rubber sleeve, which can facilitate the pushing of the whole device.

[0026] Both side surfaces of the reclining chair 3 are movably clamped to the inner surfaces of the two L-shaped frames 1. Both side surfaces of the reclining chair 3 are movably connected to the first support rods 4. The other ends of the first support rods 4 are movably connected to the connecting frame 5. A support pad 6 is fixedly installed on the top surface of the connecting frame 5. The control switch 8 is installed on the bottom surface of the support pad 6. Both ends of the second support rod 7 are respectively movably connected to the top of the L-shaped frame 1 and the bottom of the connecting frame 5. A main frame body 15 is arranged inside the L-shaped frame 1. A third connecting plate 16 and a fourth connecting plate 17 are movably clamped to the outside of the main frame body 15. A vertical shaft 19 is fixedly connected between the third connecting plate 16 and the fourth connecting plate 17. An extension rod 18 is movably connected between the third connecting plate 16 and the fourth connecting plate 17. One end of the extension rod 18 is movably connected to a first connecting plate 10. One end of the first connecting plate 10 is movably connected to one end of the L-shaped frame 1. A foot pad 11 is movably clamped to the other end of the first connecting plate 10. A driven wheel 12 is fixedly installed at the bottom end of the first connecting plate 10. A second connecting plate 13 is movably connected to the outer surface of the L-shaped frame 1. A driving wheel 14 is installed on the outer surface of the second connecting plate 13. An installation frame 20 is arranged between the two driving wheels 14. A protective wheel 21 is arranged outside the installation frame 20.

[0027] During operation, since the main body of the whole device adopts a more lightweight and high-strength carbon fiber material, therefore, in the actual use process, the whole device can achieve the advantages of lightweight and high strength compared with the existing device.

[0028] The inside of the main frame body 15 is a hollow structure. A handle 26 is arranged outside the main frame body 15. A lock catch 25 is installed inside the main frame body 15. A clamping block 27 is movably clamped inside the main frame body 15. A rope is connected between the main frame body 15 and the clamping block 27. Pin shafts 28 are inserted at both ends of the main frame body 15. A spring 29 is fixedly connected between one end of the pin shaft 28 and one side surface of the clamping block 27. A movable sleeve frame 24 is arranged on one side of the L-shaped frame 1. The main frame body 15 is inserted into the inside of the movable sleeve frame 24. The pin shaft 28 is inserted into the inside of the L-shaped frame 1.

[0029] During operation, just hold the two handles 26 and move them towards each other, then the clamping block 27 can be driven by the rope to move towards the lock catch 25 inside the main frame body 15, thereby driving the pin shaft 28 to contract into the inside of the main frame body 15. At this time, the pin shaft 28 disengages from the inside of the L-shaped frame 1. Then, by simultaneously pushing the front and rear ends of the whole device towards the middle, the folding of the whole device can be realized, thus achieving the purpose of being able to fold the whole device more conveniently. And, during the use process, stable limit is carried out through the pin shaft 28, making the whole device more stable during the use process, and the whole folded device can stand independently, with a small volume and not occupying too much space.

[0030] The control switch 8 to be described is a device or equipment existing in the prior art, or a device or equipment achievable by the prior art. Its power supply, specific composition and principle are clear to those skilled in the art, so they will not be elaborated in detail.

Claims

1. An electric wheelchair, comprising an L-shaped frame (1), characterized in that, There are two L-shaped frames (1). A seat cushion (2) and a backrest (3) are arranged between the two L-shaped frames (1). A battery box (9) is fixedly installed on the bottom surface of the seat cushion (2). A control switch (8) is arranged above the seat cushion (2). The control switch (8) is electrically connected to the battery box (9). A driven wheel (12) and a driving wheel (14) are arranged below the seat cushion (2). Both side surfaces of the backrest (3) are movably clamped on the inner side surfaces of the two L-shaped frames (1). Both side surfaces of the backrest (3) are movably connected with a first support rod (4). The other end of the first support rod (4) is movably connected with a connecting frame (5). A support pad (6) is fixedly installed on the top surface of the connecting frame (5). The control switch (8) is installed on the bottom surface of the support pad (6). A second support rod (7) is arranged between the support pad (6) and the L-shaped frame (1). Both ends of the second support rod (7) are respectively movably connected with the top of the L-shaped frame (1) and the bottom of the connecting frame (5). A main frame body (15) is arranged inside the L-shaped frame (1). A third connecting plate (16) and a fourth connecting plate (17) are movably clamped on the outside of the main frame body (15). A vertical shaft (19) is fixedly connected between the third connecting plate (16) and the fourth connecting plate (17). An extension rod (18) is movably connected between the third connecting plate (16) and the fourth connecting plate (17). One end of the extension rod (18) is movably connected with a first connecting plate (10). One end of the first connecting plate (10) is movably connected with one end of the L-shaped frame (1). A foot pad (11) is movably clamped at the other end of the first connecting plate (10). The driven wheel (12) is fixedly installed at the bottom end of the first connecting plate (10). A second connecting plate (13) is movably connected to the outer surface of the L-shaped frame (1). A driving wheel (14) is installed on the outer surface of the second connecting plate (13). An installation frame (20) is arranged between the two driving wheels (14). A protective wheel (21) is arranged outside the installation frame (20). The inside of the main frame body (15) is a hollow structure. A handle (26) is arranged outside the main frame body (15). A lock catch (25) is installed inside the main frame body (15). A clamping block (27) is movably clamped inside the main frame body (15). A rope is connected between the main frame body (15) and the clamping block (27). A pin shaft (28) is inserted at both ends of the main frame body (15). A spring (29) is fixedly connected between one end of the pin shaft (28) and one side surface of the clamping block (27). A movable sleeve frame (24) is arranged on one side of the L-shaped frame (1). The main frame body (15) is inserted inside the movable sleeve frame (24). The pin shaft (28) is inserted inside the L-shaped frame (1).

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