Foldable electric wheelchair

Abstract

The utility model discloses a foldable electric wheelchair which comprises two main frame bodies, the two main frame bodies are symmetrically arranged, the bottoms of the main frame bodies are fixedly connected with bottom supports, the tops of the main frame bodies are fixedly connected with connecting frames, the connecting frames are symmetrically and fixedly connected with two inclined supports, and the centers of the two corresponding inclined supports are rotationally connected. Two connecting rods are symmetrically and fixedly connected to the main frame body, the ends, away from the corresponding connecting frames, of the inclined supports are rotationally connected with the corresponding connecting rods, positioning plates are fixedly connected to the main frame body, holes are formed in the positioning plates and the corresponding inclined supports, and the positioning plates and the corresponding inclined supports are positioned through screws and the holes. The main frame body is rotationally connected with a supporting frame. Through the arrangement, the foldable wheelchair can be folded, so that the width of the wheelchair is reduced, the effect of being convenient to carry and carry is achieved, the structure of the wheelchair body can be effectively reinforced through the folding part of the foldable wheelchair, and the strength of the wheelchair is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of electric wheelchairs, in particular to a foldable electric wheelchair. Background Art

[0002] Electric wheelchairs are important assistive devices designed for people with limited mobility. They are powered by electricity and provide greater freedom of movement and convenience. They are widely used by the elderly, disabled people, and patients who have temporarily lost their mobility. Electric wheelchairs not only help users to carry out daily activities, but also significantly improve their quality of life and autonomy.

[0003] Although the electric wheelchairs currently on the market have a folding function, which makes them easy to carry and store, they often sacrifice some structural strength in order to achieve the folding design. This folding design weakens the stability and durability of the wheelchair to a certain extent, affecting the safety of the user.

[0004] Based on this, those skilled in the art have proposed a foldable electric wheelchair. Summary of the invention

[0005] The utility model discloses a foldable electric wheelchair, aiming to solve the technical problems in the background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A foldable electric wheelchair comprises two main frames, the two main frames are symmetrically arranged, the bottoms of the main frames are fixedly connected to bottom brackets, the tops of the main frames are fixedly connected to connecting frames, the connecting frames are symmetrically fixedly connected to two oblique supports, which are rotatably connected at the centers of the two oblique supports, the main frames are symmetrically fixedly connected to two connecting rods, one end of the oblique supports away from the corresponding connecting frames is rotatably connected to the corresponding connecting rods, the main frames are fixedly connected to positioning plates, holes are provided on the positioning plates and the corresponding oblique supports, the positioning plates are fixedly connected to the corresponding oblique supports, and the positioning plates are fixedly connected to the corresponding oblique supports. The plate and the corresponding oblique supports are positioned by screws and holes, the main frame is rotatably connected to a support frame, the main frame is rotatably connected to an armrest, the top of the support frame is rotatably connected to a rotating frame, the end of the rotating frame away from the support frame is rotatably connected to the corresponding rotating frame, the rotating frame is provided with a sliding groove, the sliding groove is provided with fixing screws, the bottom of the armrest is fixedly connected with a positioning block, the rotating frame is provided with a positioning groove on one side of the sliding groove, the positioning block is provided with a through hole, and the positioning block is slidably connected to the positioning groove and the sliding groove.

[0008] The two main frames can be brought close to each other, and the oblique supports will rotate when the main frames are brought close to each other. The rotation of the two oblique supports can bring the two main frames close to each other. After moving to the preset position, the oblique supports can be positioned by the positioning plates, so that the limiting function can be achieved. After that, the armrests can be rotated, and the rotation of the armrests drives the rotating frame to rotate, and the rotation of the rotating frame drives the supporting frame to rotate, so that the motion interference caused by the rotation of the supporting frame can be avoided, and the supporting frame, the rotating frame and the armrests can be folded.

[0009] In a preferred solution, a remote controller is fixedly connected to one of the armrests, batteries are fixedly connected to the main frames, and a controller is fixedly connected to one of the batteries.

[0010] Send control commands to the controller via the remote control.

[0011] In a preferred solution, one end of the bottom bracket is rotatably connected to a pedal.

[0012] The footrest is used to place the user's feet.

[0013] In a preferred solution, the main frame is rotatably connected to a support rod, and the bottom of the support rod is connected to a front roller.

[0014] With this arrangement, the front roller can be installed.

[0015] In a preferred embodiment, the bottom of the main frame is rotatably connected to a rear roller, the main frame is fixedly connected to a driving source, the output end of the driving source is connected to the rear roller, and the bottom of the main frame and behind the rear roller are rotatably connected to a rear roller.

[0016] Through such a setting, the rear roller can be installed and driven to rotate by a driving source, so that the device has kinetic energy to move, and the rear roller is used to extend the center of gravity of the device, which can effectively avoid the center of gravity of the user being shifted when using it.

[0017] In a preferred solution, a seat cushion is connected between the two main frames.

[0018] The seat cushion is made of soft fabric, so it can be easily folded.

[0019] The foldable electric wheelchair provided by the utility model has the following advantages:

[0020] The two main frames can be brought close to each other, and when they are brought close to each other, the diagonal support will rotate to bring the two main frames close to each other. After moving to the preset position, the diagonal support is fixed by the positioning plate to achieve position limiting. Then, the armrest is rotated to drive the rotating frame and the support frame to rotate to avoid movement interference. Finally, the support frame, the rotating frame and the armrest are folded to complete the folding of the wheelchair. Through such a setting, the device can be folded, thereby reducing the width of the wheelchair, thereby achieving the effect of convenient carrying and transporting, and the folding part of the device can effectively strengthen the wheelchair body structure without affecting the strength of the wheelchair. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an isometric view of a foldable electric wheelchair as seen from the back.

[0022] Figure 2 This is an isometric view of a foldable electric wheelchair from the front when viewed from above.

[0023] Figure 3 This is a first isometric view of a foldable electric wheelchair in a disassembled state according to the utility model.

[0024] Figure 4 This is a second isometric view of a foldable electric wheelchair in a disassembled state according to the utility model.

[0025] Figure 5 The utility model is an isometric view of the installation state of the armrest of the foldable electric wheelchair.

[0026] In the attached drawings: 1. main frame; 2. bottom bracket; 3. connecting frame; 4. oblique support; 5. connecting rod; 6. positioning plate; 7. supporting frame; 8. armrest; 9. rotating frame; 10. sliding groove; 11. fixing screw; 12. positioning block; 13. positioning groove; 14. remote control; 15. foot pedal; 16. battery; 17. controller; 18. bracket rod; 19. front roller; 20. rear roller; 21. cushion; 22. rear roller; 23. driving source. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application usually described and marked in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0028] The utility model discloses a foldable electric wheelchair.

[0029] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a foldable electric wheelchair comprises two main frames 1, the two main frames 1 are symmetrically arranged, the bottom of the main frames 1 are fixedly connected to the bottom bracket 2, the top of the main frames 1 are fixedly connected to the connecting frames 3, the connecting frames 3 are symmetrically fixedly connected to two oblique supports 4, which are rotatably connected at the centers of the two corresponding oblique supports 4, the main frames 1 are symmetrically fixedly connected to two connecting rods 5, the ends of the oblique supports 4 away from the corresponding connecting frames 3 are rotatably connected to the corresponding connecting rods 5, the main frames 1 are fixedly connected to positioning plates 6, the positioning plates 6 and the corresponding oblique supports 4 are provided with holes, and the positioning plates 6 and the corresponding oblique supports 4 are provided with holes. The inclined support 4 is positioned by screws and holes, the main frame body 1 is rotatably connected with a support frame 7, the main frame body 1 is rotatably connected with an armrest 8, the top of the support frame 7 is rotatably connected with a rotating frame 9, the end of the rotating frame 9 away from the support frame 7 is rotatably connected with the corresponding rotating frame 9, the rotating frame 9 is provided with a sliding groove 10, the sliding groove 10 is provided with a fixing screw 11, the bottom of the armrest 8 is fixedly connected with a positioning block 12, the rotating frame 9 and one side of the sliding groove 10 is provided with a positioning groove 13, the positioning block 12 is provided with a through hole, and the positioning block 12 is slidably connected with the positioning groove 13 and the sliding groove 10;

[0030] In this embodiment: the two main frames 1 can be brought close to each other, and the oblique supports 4 will rotate when the main frames 1 are brought close to each other. The rotation of the two oblique supports 4 allows the two main frames 1 to be brought close to each other. When they are moved to the preset position, the oblique supports 4 can be positioned by the positioning plates 6, so that the limiting function can be achieved. After that, the armrests 8 are rotated, and the rotation of the armrests 8 drives the rotating frame 9 to rotate, and the rotation of the rotating frame 9 drives the support frame 7 to rotate, so that the motion interference generated by the rotation of the support frame 7 can be avoided, and the support frame 7, the rotating frame 9 and the armrests 8 can be folded.

[0031] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in a preferred embodiment, a remote controller 14 is fixedly connected to one of the armrests 8, and batteries 16 are fixedly connected to the main frame 1, and a controller 17 is fixedly connected to one of the batteries 16;

[0032] In this embodiment, a control command is sent to the controller 17 via the remote controller 14 .

[0033] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in a preferred embodiment, one end of the bottom bracket 2 is rotatably connected to a pedal 15;

[0034] In this embodiment, the foot pedal 15 is used to place the user's feet.

[0035] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in a preferred embodiment, the main frame 1 is rotatably connected to a support rod 18, and the bottom of the support rod 18 is connected to a front roller 19;

[0036] This embodiment: Through such an arrangement, the front roller 19 can be installed.

[0037] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in a preferred embodiment, the bottom of the main frame 1 is rotatably connected to the rear roller 20, the main frame 1 is fixedly connected to the driving source 23, the output end of the driving source 23 is connected to the rear roller 20, and the bottom of the main frame 1 and behind the rear roller 20 are rotatably connected to the rear roller 22;

[0038] In this embodiment, the rear roller 20 can be installed through such an arrangement, and the rear roller 20 can be driven to rotate by the driving source 23, so that the device has kinetic energy to move, and the rear roller 22 is used to extend the center of gravity of the device, which can effectively avoid the center of gravity of the user being shifted during use.

[0039] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in a preferred embodiment, a cushion 21 is connected between the two main frames 1;

[0040] In this embodiment, the seat cushion 21 is made of soft fabric, so that it can be easily folded.

[0041] Working principle: the two main frames 1 can be brought close to each other, and when the main frames 1 are brought close to each other, the oblique supports 4 will rotate, and the two main frames 1 can be brought close to each other by the rotation of the two oblique supports 4. When the two main frames 1 are moved to the preset position, the oblique supports 4 can be positioned by the positioning plate 6, so that the position limit can be achieved. After that, the armrest 8 is rotated, and the rotation of the armrest 8 drives the rotating frame 9 to rotate, and the rotation of the rotating frame 9 drives the support frame 7 to rotate, so that the motion interference generated when the support frame 7 rotates can be avoided, and then the support frame 7, the rotating frame 9 and the armrest 8 can be folded, so that the wheelchair can be folded;

[0042] A control command is sent to the controller 17 through the remote control 14, and the controller 17 controls the driving source 23 to move. The driving source 23 can drive the rear roller 20 to rotate, so that the device has kinetic energy to move, and the rear roller 22 is used to extend the center of gravity of the device, which can effectively avoid the center of gravity of the user from shifting when using it.

[0043] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. Equivalent replacement or change based on the technical solution of the utility model and its utility model concept should be included in the protection scope of the utility model.

Claims

1. A foldable electric wheelchair, comprising two main frames (1), characterized in that: The two main frames (1) are symmetrically arranged, the bottom of each main frame (1) is fixedly connected to a bottom bracket (2), the top of each main frame (1) is fixedly connected to a connecting frame (3), the connecting frame (3) is symmetrically fixedly connected to two oblique supports (4), and the two oblique supports (4) are rotatably connected at the center of each other, the main frame (1) is symmetrically fixedly connected to two connecting rods (5), the ends of the oblique supports (4) away from the corresponding connecting frame (3) are rotatably connected to the corresponding connecting rods (5), the main frame (1) is fixedly connected to a positioning plate (6), the positioning plate (6) and the corresponding oblique support (4) are provided with holes, and the positioning plate (6) and the corresponding oblique support (4) are positioned by screws and holes. The main frame (1) is rotatably connected to a support frame (7), the main frame (1) is rotatably connected to an armrest (8), the top of the support frame (7) is rotatably connected to a rotating frame (9), the end of the rotating frame (9) away from the support frame (7) is rotatably connected to the corresponding rotating frame (9), the rotating frame (9) is provided with a sliding groove (10), the sliding groove (10) is provided with a fixing screw (11), the bottom of the armrest (8) is fixedly connected to a positioning block (12), the rotating frame (9) is provided with a positioning groove (13) on one side of the sliding groove (10), the positioning block (12) is provided with a through hole, and the positioning block (12) is slidably connected to the positioning groove (13) and the sliding groove (10).

2. A foldable electric wheelchair according to claim 1, characterized in that: A remote controller (14) is fixedly connected to one of the armrests (8), and batteries (16) are fixedly connected to the main frame (1), wherein a controller (17) is fixedly connected to one of the batteries (16).

3. The foldable electric wheelchair according to claim 1, characterized in that: One end of the bottom bracket (2) is rotatably connected to a foot pedal (15).

4. The foldable electric wheelchair according to claim 1, characterized in that: The main frame (1) is rotatably connected to a support rod (18), and the bottom of the support rod (18) is connected to a front roller (19).

5. The foldable electric wheelchair according to claim 1, characterized in that: The bottom of the main frame (1) is rotatably connected to a rear roller (20), the main frame (1) is fixedly connected to a driving source (23), the output end of the driving source (23) is connected to the rear roller (20), and the bottom of the main frame (1) and behind the rear roller (20) is rotatably connected to a rear roller (22).

6. The foldable electric wheelchair according to claim 1, characterized in that: A seat cushion (21) is connected between the two main frames (1).

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