Safety wheelchair with anti-toppling structure

Abstract

The utility model relates to the technical field of wheelchairs, and discloses a safety wheelchair with an anti-toppling structure, which comprises a wheelchair frame assembly, the wheelchair frame assembly comprises a first wheelchair frame and a second wheelchair frame, hand wheel ring assemblies are arranged at two ends of the wheelchair frame assembly, and a push handle is arranged at one end of the wheelchair frame assembly. A seat cushion is arranged at the upper end of the wheelchair frame assembly, and toppling prevention mechanisms are arranged on the two sides of the wheelchair frame assembly. The anti-toppling mechanism comprises a fixing frame, a connecting rod is arranged at one end of the fixing frame, the upper end of the connecting rod is movably connected with the fixing frame, an anti-toppling wheel is arranged at the lower end of the connecting rod, a limiting ring is arranged on the outer side of the connecting rod and fixedly connected with the connecting rod, and a limiting groove is formed in one end of the limiting ring. And one end of the limiting assembly can limit the limiting ring. According to the anti-toppling wheel, through the limiting assembly in the anti-toppling mechanism, the stability of the anti-toppling wheel can be improved, and the protection effect of the anti-toppling mechanism is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wheelchairs, in particular to a safety wheelchair with an anti-dumping structure. Background Art

[0002] Wheelchairs are auxiliary tools for people with limited mobility. If they lose their center of gravity when encountering a slight collision or on a slope during movement, the wheelchair may easily tip over and cause harm to the user. Therefore, anti-tipping mechanisms need to be installed on both sides of the wheelchair.

[0003] The existing wheelchair anti-dumping mechanism lacks an effective limiting mechanism during use, which easily causes the anti-dumping mechanism to shake during use, affecting the protective effect of the anti-dumping mechanism. Therefore, we propose a safety wheelchair with an anti-dumping structure. Utility Model Content

[0004] The main purpose of the utility model is to provide a safety wheelchair with an anti-dumping structure, which can effectively solve the technical problems in the background technology.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a safety wheelchair with an anti-dump structure, including a wheelchair frame assembly, the wheelchair frame assembly including a first wheelchair frame and a second wheelchair frame, hand wheel ring assemblies are provided at both ends of the wheelchair frame assembly, a push handle is provided at one end of the wheelchair frame assembly, a seat cushion is provided at the upper end of the wheelchair frame assembly, and anti-dump mechanisms are provided on both sides of the wheelchair frame assembly; the anti-dump mechanism includes a fixed frame, one end of the fixed frame is fixedly connected to the wheelchair frame assembly, one end of the fixed frame is provided with a connecting rod, the upper end of the connecting rod is movably connected to the fixed frame, the lower end of the connecting rod is provided with an anti-dump wheel, a limiting ring is provided on the outer side of the connecting rod, the limiting ring is fixedly connected to the connecting rod, one end of the limiting ring is provided with a limiting groove, and the lower end of the fixed frame is provided with a limiting component, and one end of the limiting component can limit the limiting ring.

[0006] Preferably, the limiting assembly includes a mounting frame, one end of the mounting frame is provided with an adjusting rod, the adjusting rod is slidably connected to the mounting frame, and one end of the adjusting rod is provided with a limiting block.

[0007] Preferably, the limit block is a mushroom-shaped metal block, one end of the limit block is fixedly connected to the adjustment rod, and one end of the limit block is adapted to the limit groove.

[0008] Preferably, a telescopic spring is provided on the outside of the adjusting rod, and the telescopic spring is sleeved on the outside of the adjusting rod.

[0009] Preferably, a protective component is provided at the front end of the wheelchair frame assembly, and both ends of the protective component are connected to the first wheelchair frame and the second wheelchair frame respectively.

[0010] Preferably, the protective component includes a fixing seat, which is connected to the second wheelchair frame. A positioning seat is provided at one end of the first wheelchair frame, which is connected to the first wheelchair frame. An elastic band is provided at one end of the fixing seat, which is provided at one end of the elastic band. A positioning pin is provided at one end of the positioning pin, which is inserted into the positioning seat.

[0011] The utility model provides a safety wheelchair with an anti-dumping structure, which has the following beneficial effects:

[0012] 1. This safety wheelchair with an anti-dump structure can limit the anti-dump wheel through a limiting component inside the anti-dump mechanism to prevent the limiting ring from shaking and displacing during use, thereby improving the stability of the anti-dump wheel and the protective effect of the anti-dump mechanism.

[0013] 2. This safety wheelchair with an anti-dumping structure can protect the patient by setting a protective component and an elastic belt to avoid accidents when the patient is using the wheelchair, thereby improving the safety of the wheelchair. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the implementation of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation or description of the prior art.

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

[0016] Figure 2 This is a schematic diagram of the anti-dumping mechanism structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the limit assembly of the utility model;

[0018] Figure 4 This is a schematic diagram of the protective component structure of the utility model.

[0019] Legend:

[0020] 1. First wheelchair frame; 2. Second wheelchair frame; 3. Handwheel rim assembly; 4. Push handle; 5. Seat cushion; 6. Anti-dump mechanism; 7. Protective assembly; 8. Fixed frame; 9. Connecting rod; 10. Anti-dump wheel; 11. Limiting ring; 12. Limiting groove; 13. Limiting assembly; 14. Mounting frame; 15. Adjusting rod; 16. Limiting block; 17. Telescopic spring; 18. Fixed seat; 19. Positioning seat; 20. Elastic belt; 21. Positioning pin. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] Example 1: A safety wheelchair with an anti-dumping structure, such as Figure 1-Figure 4 As shown, it includes a wheelchair frame assembly, wherein the wheelchair frame assembly includes a first wheelchair frame 1, a second wheelchair frame 2 is provided at one end of the first wheelchair frame 1, and the two groups of second wheelchair frames 2 are arranged opposite to each other. The first wheelchair frame 1 and the second wheelchair frame 2 are connected by a metal connecting rod, and hand wheel ring assemblies 3 are respectively provided at the ends of both sides of the wheelchair frame assembly. The center of the hand wheel ring assembly 3 is movably connected to the wheelchair frame assembly through a rotating shaft, a push handle 4 is provided at one end of the wheelchair frame assembly, and one end of the push handle 4 is fixedly connected to the wheelchair frame assembly, a seat cushion 5 is provided at the upper end of the wheelchair frame assembly, and the lower end of the seat cushion 5 is fixedly connected to the wheelchair frame assembly, foot pedals are provided on both sides of the front end of the wheelchair frame assembly, anti-dumping mechanisms 6 are respectively provided near the foot pedals on both sides of the front end of the wheelchair frame assembly, one end of the anti-dumping mechanism 6 is connected to the wheelchair frame assembly, and a protective component 7 is provided at the front end of the wheelchair frame assembly, one end of the protective component 7 is connected to the first wheelchair frame 1, and the other end of the protective component 7 is connected to the second wheelchair frame 2.

[0023] Furthermore, the anti-dumping mechanism 6 includes a fixing frame 8, which is a hard metal plate. One end of the fixing frame 8 is fixedly connected to the wheelchair frame assembly. One end of the fixing frame 8 is provided with a mounting groove. A connecting rod 9 is provided inside the mounting groove at one end of the fixing frame 8. The connecting rod 9 is a stainless steel metal rod. The upper end of the connecting rod 9 is installed inside the mounting groove at one end of the fixing frame 8. The connecting rod 9 and the fixing frame 8 are movably connected through a rotating shaft. An anti-dumping wheel 10 is provided at the lower end of the connecting rod 9. A limiting ring 11 is provided on the outside of the connecting rod 9. The limiting ring 11 is installed at the lower end of the fixing frame 8. The inner side of the limiting ring 11 is fixedly connected to the connecting rod 9. A limiting groove 12 is provided at one end of the outer side of the limiting ring 11. A limiting component 13 is provided at one end of the lower end of the fixing frame 8 close to the limiting groove 12. The upper end of the limiting component 13 is connected to the fixing frame 8, and one end of the limiting component 13 is inserted into the limiting groove 12 to limit the limiting ring 11.

[0024] Furthermore, the limit assembly 13 includes a mounting frame 14, the upper end of the mounting frame 14 is fixedly connected to the fixing frame 8, an adjusting rod 15 is provided at one end of the mounting frame 14, the adjusting rod 15 is slidably connected to the mounting frame 14, and a limit block 16 is provided at one end of the adjusting rod 15 close to the limit slot 12. The limit block 16 is a mushroom-shaped metal block, one end of the limit block 16 is fixedly connected to the adjusting rod 15, one end of the limit block 16 is adapted to the limit slot 12, and one end of the limit block 16 can be inserted into the limit slot 12. A telescopic spring 17 is provided on the outside of the adjusting rod 15, and the telescopic spring 17 is sleeved on the outside of the adjusting rod 15. One end of the telescopic spring 17 is in contact with the mounting frame 14, and the other end of the telescopic spring 17 is in contact with the limit block 16.

[0025] Furthermore, the protective component 7 includes a fixing seat 18, which is sleeved on the outside of the second wheelchair frame 2, and the inner side of the fixing seat 18 is fixedly connected to the second wheelchair frame 2. A positioning seat 19 is provided at one end of the first wheelchair frame 1 relative to one end of the fixing seat 18, and one end of the positioning seat 19 is fixedly connected to the first wheelchair frame 1. A plug-in slot is provided at one end of the positioning seat 19, and an elastic band 20 is provided at one end of the fixing seat 18 close to the positioning seat 19, and one end of the elastic band 20 is fixedly connected to the fixing seat 18. A positioning pin 21 is provided at one end of the elastic band 20 away from the fixing seat 18, and one end of the positioning pin 21 is fixedly connected to the elastic band 20, and one end of the positioning pin 21 is inserted into the inside of the positioning seat 19.

[0026] It should be noted that the present invention is a safety wheelchair with an anti-dump structure. When in use, the positioning pin 21 is first removed from the positioning seat 19, and then the patient sits on the upper end of the wheelchair. The positioning pin 21 is then inserted into the positioning seat 19. The elastic band 20 can protect the patient. Then, the adjustment rod 15 is first pulled, and then the connecting rod 9 is rotated to rotate the anti-dump wheel 10 to the bottom of the fixed frame 8 and contact the ground. The adjustment rod 15 is then slowly released. The adjustment rod 15 is reset under the action of the elastic force of the telescopic spring 17. The adjustment rod 15 pushes the limit block 16 to move during the reset. One end of the limit block 16 is inserted into the limit groove 12 during the movement, thereby limiting the anti-dump wheel 10 through the connecting rod 9. By providing the anti-dump mechanism 6, the limit assembly 13 inside the anti-dump mechanism 6 can limit the anti-dump wheel 10 through the limit ring 11, preventing the limit ring 11 from shaking and moving during use, thereby improving the stability of the anti-dump wheel 10 and improving the protective effect of the anti-dump mechanism 6. By providing the protection component 7, the elastic belt 20 can protect the patient during use, thereby preventing the patient from having accidents during use and improving the safety of the wheelchair.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A safety wheelchair with an anti-dumping structure, comprising a wheelchair frame assembly, the wheelchair frame assembly comprising a first wheelchair frame (1) and a second wheelchair frame (2), hand wheel rim assemblies (3) being provided at both ends of the wheelchair frame assembly, a push handle (4) being provided at one end of the wheelchair frame assembly, and a seat cushion (5) being provided at the upper end of the wheelchair frame assembly, characterized in that: Anti-dumping mechanisms (6) are provided on both sides of the wheelchair frame assembly; the anti-dumping mechanism (6) comprises a fixing frame (8), one end of the fixing frame (8) is fixedly connected to the wheelchair frame assembly, one end of the fixing frame (8) is provided with a connecting rod (9), the upper end of the connecting rod (9) is movably connected to the fixing frame (8), the lower end of the connecting rod (9) is provided with an anti-dumping wheel (10), a limiting ring (11) is provided on the outer side of the connecting rod (9), the limiting ring (11) is fixedly connected to the connecting rod (9), one end of the limiting ring (11) is provided with a limiting groove (12), the lower end of the fixing frame (8) is provided with a limiting component (13), and one end of the limiting component (13) can limit the limiting ring (11).

2. The safety wheelchair with an anti-dumping structure according to claim 1, characterized in that: The limiting assembly (13) comprises a mounting frame (14), one end of the mounting frame (14) is provided with an adjusting rod (15), the adjusting rod (15) is slidably connected to the mounting frame (14), and one end of the adjusting rod (15) is provided with a limiting block (16).

3. The safety wheelchair with an anti-dumping structure according to claim 2, characterized in that: The limiting block (16) is a mushroom-shaped metal block, one end of the limiting block (16) is fixedly connected to the adjusting rod (15), and one end of the limiting block (16) is adapted to the limiting groove (12).

4. The safety wheelchair with an anti-dumping structure according to claim 2, characterized in that: A telescopic spring (17) is provided on the outside of the regulating rod (15), and the telescopic spring (17) is sleeved on the outside of the regulating rod (15).

5. The safety wheelchair with an anti-dumping structure according to claim 1, characterized in that: A protective component (7) is provided at the front end of the wheelchair frame assembly, and two ends of the protective component (7) are respectively connected to the first wheelchair frame (1) and the second wheelchair frame (2).

6. The safety wheelchair with an anti-dumping structure according to claim 5, characterized in that: The protective assembly (7) includes a fixing seat (18), the fixing seat (18) is connected to the second wheelchair frame (2), one end of the first wheelchair frame (1) is provided with a positioning seat (19), one end of the positioning seat (19) is connected to the first wheelchair frame (1), one end of the fixing seat (18) is provided with an elastic band (20), one end of the elastic band (20) is provided with a positioning pin (21), and one end of the positioning pin (21) is inserted into the interior of the positioning seat (19).

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