Wheelchair controller turning mechanism

Abstract

The utility model discloses a wheelchair controller turning mechanism, and particularly relates to the wheelchair controller turning technical field, the wheelchair controller turning mechanism comprises a wheelchair controller main body, the bottom end of the wheelchair controller main body is provided with a long plate, the front end of the long plate is provided with a slide groove, a slide plate is arranged in the slide groove, the front end of the slide plate is fixedly provided with a support plate, and the support plate is fixedly provided with a rotating shaft. A mounting base is arranged below the supporting plate, and corner assemblies are arranged between the mounting base and the supporting plate and between the long plate and the wheelchair controller body. The round rod is limited through meshing of the ratchet wheel and the pawl, so that the wheelchair controller body and the long plate can be rotated conveniently, a user can use the wheelchair controller body conveniently, meanwhile, the rotating rod is rotated to drive the pawl to be separated from the ratchet wheel, and then the wheelchair controller body and the long plate can be rotated reversely; in addition, the user can loosen the hexagon nut and the gasket, pull the long plate to move on the sliding plate and further adjust the position of the wheelchair controller body, and the wheelchair controller is simple in structure and quite convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of wheelchair controller turning angles, in particular to a wheelchair controller turning angle mechanism. Background Art

[0002] A wheelchair is a seat-type vehicle designed for people with limited mobility, usually with four wheels, including two front wheels and two rear wheels. With the continuous development of technology, electric wheelchairs are gradually replacing traditional push wheelchairs. Electric wheelchairs use electricity as a power source. They are usually powered by batteries and have one or more motors. Users only need to use their hands to operate the controller to control the movement and steering of the electric wheelchair. However, most existing wheelchair controllers are fixedly connected to the vehicle body, which is very inconvenient to use, so a corner mechanism is required to support the controller for adjustment.

[0003] For example, the prior art announcement number CN211512378U is a turning mechanism for a wheelchair controller. This utility model can adjust the angle and position of the wheelchair controller, improve the convenience of user operation, and make it easier for users to get in and out of the wheelchair.

[0004] However, the above-mentioned prior art still has the following problems when in use: a large number of locking screws are used to fix the structure, and the locking screws will loosen after long-term use, requiring users to frequently check and tighten them, which is very inconvenient to use. Based on this, the utility model provides an easy-to-use wheelchair controller angle mechanism. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a wheelchair controller turning angle mechanism, which limits the round rod by engaging the ratchet and the pawl, so as to facilitate the rotation of the wheelchair controller body and the long board to turn the angle and change the position of the wheelchair controller body. The user can also loosen the hexagonal nut and the washer and pull the long board to move on the skateboard to further adjust the position of the wheelchair controller body. The structure is simple and the use is very convenient, so as to solve the problems arising from the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wheelchair controller corner mechanism, including a wheelchair controller body, a long board is provided at the bottom end of the wheelchair controller body, a slide groove is provided at the front end of the long board, a slide plate is provided in the slide groove, a support plate is fixedly provided at the front end of the slide plate, a mounting seat is provided below the support plate, corner components are provided between the mounting seat and the support plate, and between the long board and the wheelchair controller body, two corner components each include a round block, the two round blocks are respectively fixed at the top end of the mounting seat and the top end of the long board, the top ends of the two round blocks are respectively provided with a cavity, a round rod is rotatably provided in the cavity, the top ends of the two round rods are respectively fixed to the bottom end of the wheelchair controller body and the bottom end of the support plate, the outer walls of the two round rods are fixedly sleeved with ratchets, a pawl is meshed on one side of the ratchet, and a torsion spring is fixedly provided between the pawl and the inner wall of the cavity.

[0007] In a preferred embodiment, a rotating rod is fixedly passed through the inside of both pawls, and the bottom end of the rotating rod passes through the outer wall of the round block, so that the user can rotate the rotating rod to drive the pawl to separate from the ratchet wheel and reverse the angle of the wheelchair controller body and the long board.

[0008] In a preferred embodiment, the outer walls of the two round rods are fixed with limiting rings, and the inner walls of the two cavities are provided with annular limiting grooves that are compatible with the limiting rings. The limiting rings are arranged in the annular limiting grooves. The limiting rings cooperate with the annular limiting grooves to improve the stability of the rotation of the round rods.

[0009] In a preferred embodiment, a through groove is opened on the top of the long board, a threaded rod is fixed on the top of the skateboard, a hexagonal nut is threaded on the threaded rod, and the bottom end of the hexagonal nut contacts the top of the long board for fixing the long board and the skateboard.

[0010] In a preferred embodiment, a washer is provided between the bottom end of the hexagonal nut and the top of the long board. The washer is sleeved on the threaded rod. The washer can increase the friction between the hexagonal nut and the long board bracket, thereby improving the firmness between the hexagonal nut and the long board.

[0011] In a preferred embodiment, an instruction label is attached to the top surface of the long board, and the instruction label is arranged on one side of the through slot to prevent the instruction label from obstructing the use of the through slot. The user can know how to use the device according to the content on the instruction label.

[0012] In a preferred embodiment, a plurality of mounting holes are provided on the top of the mounting seat, and the plurality of mounting holes are distributed in a circular array on the mounting seat. In actual use, the user can use bolts to pass through the mounting holes to firmly fix the mounting seat on the electric wheelchair.

[0013] Technical effects and advantages of the utility model:

[0014] The utility model limits the position of the round rod by meshing the ratchet and the pawl, so as to facilitate the rotation of the wheelchair controller body and the long board to make a turn, which is convenient for the user to use the wheelchair controller body. At the same time, after the rotating rod is rotated to drive the pawl to separate from the ratchet, the wheelchair controller body and the long board can be turned in the opposite direction. The user can also loosen the hexagonal nut and the washer, pull the long board to move on the skateboard, and further adjust the position of the wheelchair controller body. The utility model has a simple structure and is very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the main body turning angle of the wheelchair controller of the utility model;

[0017] Figure 3 It is a side view of the overall structure of the utility model;

[0018] Figure 4 This is a cross-sectional view of the corner assembly structure of the utility model;

[0019] Figure 5 It is a sectional view of a round block of the utility model.

[0020] The accompanying drawings are marked as follows: 1. wheelchair controller body; 2. long board; 3. slide groove; 4. slide plate; 5. support plate; 6. mounting seat; 7. corner assembly; 8. rotating rod; 9. limiting ring; 10. annular limiting groove; 11. through groove; 12. threaded rod; 13. hexagonal nut; 14. washer; 15. instruction label; 16. mounting hole;

[0021] 701, round block; 702, cavity; 703, round rod; 704, ratchet; 705, pawl; 706, torsion spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Refer to the instruction manual Figure 1-5 The utility model provides a wheelchair controller turning mechanism, comprising a wheelchair controller body 1, a long board 2 is provided at the bottom end of the wheelchair controller body 1, a slide groove 3 is provided at the front end of the long board 2, a slide plate 4 is provided in the slide groove 3, a support plate 5 is fixed at the front end of the slide plate 4, and a mounting seat 6 is provided below the support plate 5;

[0024] A corner assembly 7 is provided between the mounting seat 6 and the support plate 5, and between the long plate 2 and the wheelchair controller body 1. The two corner assemblies 7 each include a round block 701. The two round blocks 701 are respectively fixed to the top of the mounting seat 6 and the top of the long plate 2. The tops of the two round blocks 701 are each provided with a cavity 702. A round rod 703 is rotatably provided in the cavity 702. The tops of the two round rods 703 are respectively fixed to the bottom of the wheelchair controller body 1 and the bottom of the support plate 5;

[0025] Next, ratchets 704 are fixedly sleeved on the outer walls of the two round rods 703, and a pawl 705 is meshed on one side of the ratchet 704. A torsion spring 706 is fixedly arranged between the pawl 705 and the inner wall of the cavity 702. A rotating rod 8 is fixedly passed through the inside of the two pawls 705, and the bottom end of the rotating rod 8 passes through the outer wall of the round block 701, so that the user can rotate the rotating rod 8 to drive the pawl 705 to separate from the ratchet 704, and perform reverse rotation of the wheelchair controller body 1 and the long board 2;

[0026] The top of the mounting seat 6 is provided with a plurality of mounting holes 16 which are distributed in a circular array on the mounting seat 6. In actual use, the user can use bolts to pass through the mounting holes 16 to firmly fix the mounting seat 6 on the electric wheelchair.

[0027] When in use, first fix the mounting seat 6 to the armrest of the electric wheelchair, and then the user can grasp the wheelchair controller body 1 to turn an angle on the long board 2 according to his or her own operating habits. The wheelchair controller body 1 drives the ratchet 704 on the round rod 703 to engage with the pawl 705, and the pawl 705 limits and fixes the ratchet 704, so as to facilitate the adjustment of the angle of the wheelchair controller body 1. At the same time, the long board 2 can be pushed to turn an angle on the mounting seat 6, and the position of the wheelchair controller body 1 can be changed. The wheelchair controller body 1 can be moved to the user's chest for use. The round rod 703 is limited by the engagement of the ratchet 704 and the pawl 705, so that the wheelchair controller body 1 can be rotated 360 degrees on the long board 2 and the long board 2 can be rotated 360 degrees on the mounting seat 6. The structure is simple and very convenient to use.

[0028] Refer to the instruction manual Figure 1-5 The outer walls of the two round rods 703 are fixedly sleeved with a limiting ring 9, and the inner walls of the two cavities 702 are provided with an annular limiting groove 10 adapted to the limiting ring 9. The limiting ring 9 is arranged in the annular limiting groove 10. The limiting ring 9 cooperates with the annular limiting groove 10 to improve the rotation stability of the round rod 703;

[0029] A through slot 11 is formed at the top of the long board 2, a threaded rod 12 is fixedly provided at the top of the slide plate 4, a hexagonal nut 13 is threadedly connected to the threaded rod 12, and the bottom end of the hexagonal nut 13 contacts the top of the long board 2 for fixing the long board 2 and the slide plate 4;

[0030] In order to improve the firmness between the hexagonal nut 13 and the long board 2, a washer 14 is provided between the bottom end of the hexagonal nut 13 and the top of the long board 2. The washer 14 is sleeved on the threaded rod 12. The washer 14 can increase the friction between the hexagonal nut 13 and the long board 2 bracket, thereby improving the firmness between the hexagonal nut 13 and the long board 2.

[0031] In order to help users understand how to use the device, an instruction label 15 is attached to the top surface of the long board 2. The instruction label 15 is arranged on one side of the through slot 11 to prevent the instruction label 15 from obstructing the use of the through slot 11. Users can know how to use the device based on the content on the instruction label 15.

[0032] By arranging a slide plate 4 at the rear end of the support plate 5, and the slide plate 4 is arranged in the slide groove 3 in the long board 2, the user can loosen the hexagonal nut 13 and the washer 14, and then pull the long board 2 to move on the slide plate 4. After adjusting the position of the wheelchair controller body 1, tighten the hexagonal nut 13 and the washer 14 to re-fix the long board 2 and the slide plate 4, so as to facilitate further adjustment of the position of the wheelchair controller body 1 and facilitate use by the user.

[0033] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A wheelchair controller turning mechanism, comprising a wheelchair controller body (1), characterized in that: The bottom end of the wheelchair controller body (1) is provided with a long board (2), the front end of the long board (2) is provided with a slide groove (3), a slide plate (4) is provided in the slide groove (3), a support plate (5) is fixedly provided at the front end of the slide plate (4), and a mounting seat (6) is provided below the support plate (5); A corner assembly (7) is provided between the mounting seat (6) and the support plate (5), and between the long plate (2) and the wheelchair controller body (1). The two corner assemblies (7) each comprise a round block (701). The two round blocks (701) are respectively fixed to the top of the mounting seat (6) and the top of the long plate (2). The tops of the two round blocks (701) are each provided with a cavity (702). A round rod (703) is rotatably provided in the cavity (702). The tops of the two round rods (703) are respectively fixed to the bottom of the wheelchair controller body (1) and the bottom of the support plate (5). A ratchet (704) is fixedly sleeved on the outer walls of the two round rods (703), a pawl (705) is meshed on one side of the ratchet (704), and a torsion spring (706) is fixedly arranged between the pawl (705) and the inner wall of the cavity (702).

2. A wheelchair controller turning mechanism according to claim 1, characterized in that: A rotating rod (8) is fixedly passed through the inside of the two ratchet pawls (705), and the bottom end of the rotating rod (8) passes through the outer wall of the round block (701) for rotating the ratchet pawls (705).

3. The wheelchair controller turning mechanism according to claim 1, characterized in that: The outer walls of the two round rods (703) are fixedly sleeved with a limiting ring (9), and the inner walls of the two cavities (702) are provided with an annular limiting groove (10) adapted to the limiting ring (9). The limiting ring (9) is arranged in the annular limiting groove (10) to improve the rotation stability of the round rod (703).

4. A wheelchair controller turning mechanism according to claim 1, characterized in that: A through slot (11) is provided at the top of the long board (2), a threaded rod (12) is fixedly provided at the top of the slide plate (4), a hexagonal nut (13) is threadedly connected to the threaded rod (12), and the bottom end of the hexagonal nut (13) contacts the top of the long board (2) and is used to fix the long board (2) and the slide plate (4).

5. A wheelchair controller turning mechanism according to claim 4, characterized in that: A washer (14) is provided between the bottom end of the hexagonal nut (13) and the top of the long plate (2). The washer (14) is sleeved on the threaded rod (12) to improve the firmness between the hexagonal nut (13) and the long plate (2).

6. A wheelchair controller turning mechanism according to claim 4, characterized in that: An instruction label (15) is pasted on the top surface of the long board (2), and the instruction label (15) is arranged on one side of the through slot (11).

7. The wheelchair controller turning mechanism according to claim 1, characterized in that: A plurality of mounting holes (16) are provided on the top of the mounting seat (6), and the plurality of mounting holes (16) are distributed in a ring array on the mounting seat (6).

Images