Seat fixing structure of electric wheelchair

Abstract

The utility model discloses a seat fixing structure of an electric wheelchair, which is characterized in that the upper surface of a bottom plate is fixedly connected with a protective frame, the lower surface of the bottom plate is fixedly connected with supporting legs, the lower surfaces of the supporting legs are fixedly connected with pulley assemblies, the upper surface of the bottom plate is fixedly connected with a damping assembly, and the upper end of the damping assembly is fixedly connected with a bearing plate; a limiting seat is fixedly connected to the upper surface of the bearing plate, an inserting hole is formed in the limiting seat, a chair seat is movably connected to the upper surface of the bearing plate, a connecting seat is fixedly connected to the lower surface of the chair seat, a sliding groove is formed in the connecting seat, a bolt is slidably connected to the inner surface of the sliding groove, the bolt is movably connected with the inserting hole, and a rotating disc is rotatably connected to the lower surface of the chair seat; by means of the components, additional tools or complex steps are not needed for installation and disassembly, and the installation and disassembly process of the chair seat is very convenient and rapid.

Description

Technical Field

[0001] The utility model relates to the technical field of electric wheelchairs, and particularly relates to a seat fixing structure of an electric wheelchair. Background Art

[0002] A wheelchair is a chair equipped with wheels to help replace walking, and is divided into electric and manual wheelchairs. An electric wheelchair is upgraded on the basis of a traditional manual wheelchair by adding high-performance power drive devices, intelligent control devices, batteries and other components. With an artificial operation of an intelligent controller, the wheelchair can be driven to complete operations such as forward, backward, and turning. It is a high-tech product combining modern precision machinery, intelligent numerical control, engineering mechanics and other fields.

[0003] A seat structure for people to sit on is arranged on the upper part of the electric wheelchair. The seat structures on the upper part of traditional electric wheelchairs are mostly fixed, and are integrally and fixedly connected to the wheelchair structure and are difficult to disassemble. Moreover, the types of seats on the upper part of the wheelchair are fixed. Due to the huge temperature difference in winter and summer, a single type of seat cannot be suitable for the use scenarios in winter and summer at the same time, and the use functionality is low. Moreover, when the seat is damaged and needs to be replaced, the traditional fixed seat structure is difficult to disassemble, and the operation of replacing the seat is very difficult and inconvenient to use. Content of the Utility Model

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide a seat fixing structure of an electric wheelchair. During installation, only need to insert the limiting rod into the limiting hole, and then rotate the seat, so as to rotate the turntable. When the turntable rotates, it will drive the sliding rod to move through the notch, so as to move the bolt into the jack, and the fixing is completed. During disassembly, just operate in the reverse direction. This operation does not require additional tools or complex steps, making the installation and disassembly process of the seat very convenient and fast.

[0005] The present utility model further provides a seat fixing structure for an electric wheelchair having the above-mentioned structure, including: a bottom plate, an upper surface of the bottom plate is fixedly connected with a protective frame, a lower surface of the bottom plate is fixedly connected with support legs, a lower surface of the support legs is fixedly connected with a pulley assembly, an upper surface of the bottom plate is fixedly connected with a shock absorption assembly, an upper end of the shock absorption assembly is fixedly connected with a bearing plate, an upper surface of the bearing plate is fixedly connected with a limiting seat, a jack is arranged on the limiting seat, an upper surface of the bearing plate is movably connected with a seat, a lower surface of the seat is fixedly connected with a connecting seat, a chute is arranged on the connecting seat, a plug pin is slidably connected to an inner surface of the chute, the plug pin is movably connected with the jack, a turntable is rotatably connected to a lower surface of the seat, a notch is arranged on the turntable, a sliding rod is fixedly connected to a lower surface of the plug pin, the sliding rod is slidably connected to an inner surface of the notch, four limiting holes are arranged on the bearing plate, four limiting rods are fixedly connected to a lower surface of the turntable, and the four limiting rods are movably connected with the four limiting holes.

[0006] According to the seat fixing structure for an electric wheelchair described in the present utility model, the pulley assembly includes: a connecting piece, the connecting piece is rotatably connected to a side surface of the support leg.

[0007] According to the seat fixing structure for an electric wheelchair described in the present utility model, the pulley assembly further includes: a connecting plate, the connecting plate is fixedly connected to a lower surface of the connecting piece.

[0008] According to the seat fixing structure for an electric wheelchair described in the present utility model, the pulley assembly further includes: a runner, the runner is rotatably connected to a side surface of the connecting plate.

[0009] According to the seat fixing structure for an electric wheelchair described in the present utility model, the shock absorption assembly includes: a spring, the spring is fixedly connected between the bottom plate and the bearing plate.

[0010] According to the seat fixing structure for an electric wheelchair described in the present utility model, the shock absorption assembly includes: a damper, the damper is fixedly connected between the bottom plate and the bearing plate.

[0011] According to the seat fixing structure for an electric wheelchair described in the present utility model, a slot is arranged on the protective frame, and a handle is movably connected to an inner surface of the slot. Beneficial effects

[0012] 1. Compared with the prior art, for the seat fixing structure of this electric wheelchair, when installing the seat fixing structure of an electric wheelchair, one only needs to insert the limiting rod into the limiting hole, and then rotate the seat, thereby rotating the turntable. When the turntable rotates, it will drive the sliding rod to move through the notch, so that the bolt moves into the jack, and the fixing is completed. When disassembling, just operate in the reverse direction. This operation does not require additional tools or complex steps, making the installation and disassembly process of the seat very convenient and fast. Description of the Drawings

[0013] The following further describes the present invention in conjunction with the drawings and embodiments;

[0014] Figure 1 It is the front view structure diagram of the seat fixing structure of an electric wheelchair of the present invention;

[0015] Figure 2 It is the front view sectional structure diagram of the seat fixing structure of an electric wheelchair of the present invention;

[0016] Figure 3 It is the bottom view sectional structure diagram of the seat fixing structure of an electric wheelchair of the present invention;

[0017] Figure 4 It is the left view structure diagram of the seat fixing structure of an electric wheelchair of the present invention.

[0018] Legend Explanation:

[0019] 1. Protective frame; 2. Connector; 3. Connecting plate; 4. Runner; 5. Seat; 6. Handle; 7. Slot; 8. Bottom plate; 9. Support leg; 10. Connecting seat; 11. Jack; 12. Bolt; 13. Chute; 14. Limiting hole; 15. Limiting rod; 16. Limiting seat; 17. Bearing plate; 18. Turntable; 19. Notch; 20. Sliding rod; 21. Spring; 22. Damper. Detailed Description of the Preferred Embodiment

[0020] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be construed as a limitation on the protection scope of the present invention.

[0021] Refer to Figures 1-4, in an embodiment of the present utility model, a seat fixing structure of an electric wheelchair includes: a bottom plate 8 for carrying components, a protective frame 1 fixedly connected to the upper surface of the bottom plate 8 for protecting internal components, a slot 7 provided on the protective frame 1, a handle 6 movably connected to the inner surface of the slot 7, a support leg 9 fixedly connected to the lower surface of the bottom plate 8 for supporting the bottom plate 8, and a pulley assembly fixedly connected to the lower surface of the support leg 9. The pulley assembly includes: a connecting member 2 rotatably connected to the side surface of the support leg 9. The pulley assembly further includes: a connecting plate 3 fixedly connected to the lower surface of the connecting member 2. The pulley assembly further includes: a runner 4 rotatably connected to the side surface of the connecting plate 3 for driving the wheelchair to move. The pulley assembly on the electric wheelchair is a mature existing technology, and its specific structure will not be elaborated in this article.

[0022] A shock absorption assembly is fixedly connected to the upper surface of the bottom plate 8. The shock absorption assembly includes: a spring 21 fixedly connected between the bottom plate 8 and a bearing plate 17. The shock absorption assembly includes: a damper 22 fixedly connected between the bottom plate 8 and the bearing plate 17 for buffering vibrations. The upper end of the shock absorption assembly is fixedly connected to a bearing plate 17 for connecting a seat 5. A limiting seat 16 is fixedly connected to the upper surface of the bearing plate 17 for connecting a connecting seat 10. A jack 11 is provided on the limiting seat 16 for restricting a pin 12. The seat 5 is movably connected to the upper surface of the bearing plate 17. The seat 5 is a mature existing technology and will not be elaborated in this article.

[0023] A connecting seat 10 is fixedly connected to the lower surface of the seat 5 for connecting the limiting seat 16. A chute 13 is provided on the connecting seat 10 for restricting the pin 12 to only allow linear movement of the pin 12. The pin 12 is slidably connected to the inner surface of the chute 13 for connecting the jack 11 to fix the seat 5. The pin 12 is movably connected to the jack 11. A turntable 18 is rotatably connected to the lower surface of the seat 5. A notch 19 is provided on the turntable 18 for driving a sliding rod 20 to move the pin 12 when the turntable 18 rotates. The sliding rod 20 is fixedly connected to the lower surface of the pin 12, and the sliding rod 20 is slidably connected to the inner surface of the notch 19. Four limiting holes 14 are provided on the bearing plate 17 for connecting limiting rods 15. Four limiting rods 15 are fixedly connected to the lower surface of the turntable 18 for inserting into the limiting holes 14 so that the turntable 18 can be rotated when the seat 5 is rotated. The four limiting rods 15 are movably connected to the four limiting holes 14.

[0024] Working principle: When in use, remove the handles 6 on both sides of the protective frame 1. Subsequently, insert the limiting rod 15 under the seat 5 into the inside of the limiting hole 14. Then rotate the seat 5, thereby rotating the turntable 18. When the turntable 18 rotates, it will drive the sliding rod 20 to move inside through the notch 19, so as to move the bolt 12 into the jack 11, that is, the fixing is completed. For disassembly, just operate in the reverse direction. This operation does not require additional tools or complex steps, making the installation and disassembly process of the seat 5 very convenient and fast.

[0025] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art to which the present invention pertains, various changes can also be made without departing from the gist of the present invention.

Claims

1. A seat fixing structure for an electric wheelchair, characterized in that, Comprising: A bottom plate (8), on the upper surface of which a protective frame (1) is fixedly connected, on the lower surface of which support legs (9) are fixedly connected, on the lower surface of which pulley assemblies are fixedly connected, on the upper surface of which a shock-absorbing assembly is fixedly connected, at the upper end of which a bearing plate (17) is fixedly connected, on the upper surface of which a limiting seat (16) is fixedly connected, on which a jack (11) is provided, on the upper surface of which a seat (5) is movably connected, and on the lower surface of which a connecting seat (10) is fixedly connected; On the connecting seat (10) there is a sliding groove (13), on the inner surface of which a bolt (12) is slidably connected, which is movably connected with the jack (11), on the lower surface of the seat (5) there is a turntable (18) rotatably connected, on which a notch (19) is provided, on the lower surface of the bolt (12) there is a sliding rod (20) slidably connected to the inner surface of the notch (19), on the bearing plate (17) there are four limiting holes (14), and on the lower surface of the turntable (18) there are four limiting rods (15), and the four limiting rods (15) are movably connected with the four limiting holes (14).

2. The seat fixing structure of an electric wheelchair according to claim 1, characterized in that, The pulley assembly comprises: a connecting piece (2) rotatably connected to the side surface of the support leg (9).

3. The seat fixing structure of an electric wheelchair according to claim 2, characterized in that, The pulley assembly further comprises: a connecting plate (3) fixedly connected to the lower surface of the connecting piece (2).

4. The seat fixing structure of an electric wheelchair according to claim 1, characterized in that, The pulley assembly further comprises: a runner (4) rotatably connected to the side surface of the connecting plate (3).

5. The seat fixing structure of an electric wheelchair according to claim 1, characterized in that, The shock-absorbing assembly comprises: a spring (21) fixedly connected between the bottom plate (8) and the bearing plate (17).

6. The seat fixing structure of an electric wheelchair according to claim 5, characterized in that, The shock-absorbing assembly comprises: a damper (22) fixedly connected between the bottom plate (8) and the bearing plate (17).

7. The seat fixing structure of an electric wheelchair according to claim 1, characterized in that, On the protective frame (1) there is a slot (7), on the inner surface of which a handle (6) is movably connected.

Images