A left and right spiral wheel type wheelchair that can climb stairs
A right-handed spiral and stair-climbing technology, which is applied to the patient's chair or special transportation tool, vehicle rescue, medical transportation, etc. less flexible
Active Publication Date: 2017-07-21
赣州东辰科技有限公司
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Problems solved by technology
[0002] At present, in the technical field of stair-climbing wheelchairs and stair-climbing cargo delivery vehicles, the main structures are star-wheel type, crawler type and intermittent type. Large fluctuations, for people sitting in wheelchairs, the desired level of stability has not yet been achieved, and at the same time, the requirements for nursing staff operating wheelchairs are relatively high; the crawler structure is relatively mature, but the price is high, and it is not suitable for general economic conditions. It is used by people who need wheelchairs from families, and the crawler type rotation is not very flexible, and it is not suitable for people who need families with small housing areas. It is an engineering project in this field to develop wheelchairs with low prices and ideal performance. A common topic for technicians
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[0029] exist figure 1 , figure 2 , image 3Middle, left U-shaped bending frame (1), right U-shaped bending frame (2), seat surface support frame (3), seat surface cushion (4), seat back support frame (5), seat back cushion (6 ), connection plate (7), left support plate (8), right support plate (9), left swivel caster (10), right swivel caster (11), left pedal assembly (12), right pedal Plate assembly (13), left armrest assembly (14), right armrest assembly (15), left cart armrest assembly (16), right cart armrest assembly (17), left front mounting plate (18), right front mounting plate (19), long connecting pin (20), elastic retaining ring (21), left rear mounting plate (22), right rear mounting plate (23), upper plate (24), lower plate (25), rear Plate (26), rear wheel lifting hand wheel (27), bearing housing 1 (28), bearing housing 2 (29), left shaft (30), right shaft (31), sprocket 1 (32), sprocket 2 (33), sprocket 3 (34), sprocket 4 (35), chain 1 (36), bearing seat 3 ...
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The invention discloses a left-right-handed rotating helical wheel type stair climbing wheelchair. The wheelchair comprises a wheelchair body, a rear wheel lifting mechanism, a stair climbing mechanism assembly, a connection component and an electric appliance control system, wherein the resultant force of a friction forward force of a left-handed rotating helical wheel with the stair surface when the left-handed rotating helical wheel in the stair climbing mechanism assembly rotates and a friction forward force of a right-handed rotating helical wheel with the stair surface when the right-handed rotating helical wheel in the stair climbing mechanism assembly rotates is used as the stair climbing power of the left-right-handed rotating helical wheel type stair climbing wheelchair, and then the wheelchair is driven to go upstairs and downstairs; the friction component force, vertical to the stair surface and the forward direction, of the left-handed rotating helical wheel when the left-handed rotating helical wheel rotates is counteracted with the friction component force, vertical to the stair face and the forward direction, of the right-handed rotating helical wheel when the right-handed rotating helical wheel rotates; and the rear wheel lifting mechanism adopts a chain transmission and screw-and-nut transmission combined structure, so that conversion between flat road traveling action and climbing action of the stair climbing wheelchair can be easily implemented. The left-right-handed rotating helical wheel type stair climbing wheelchair is simple in structure and easy to manufacture.
Description
technical field [0001] The invention relates to the technical field of manufacturing a stair-climbing wheelchair and a stair-climbing cargo transport vehicle, and more specifically relates to a left-right spiral wheel-type stair-climbing wheelchair. Background technique [0002] At present, in the technical field of stair-climbing wheelchairs and stair-climbing cargo delivery vehicles, the main structures are star-wheel type, crawler type and intermittent type. Large fluctuations, for people sitting in wheelchairs, the desired level of stability has not yet been achieved, and at the same time, the requirements for nursing staff operating wheelchairs are relatively high; the crawler structure is relatively mature, but the price is high, and it is not suitable for general economic conditions. It is used by people who need wheelchairs from families, and the crawler type rotation is not very flexible, and it is not suitable for people who need families with small housing areas. ...
Claims
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IPC IPC(8): A61G5/06A61G5/10
CPCA61G5/061A61G5/10A61G2203/10A61G2203/70
Inventor 梁庆昌
Owner 赣州东辰科技有限公司