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Manual stair climbing wheelchair

A stair-climbing wheelchair and handwheel technology, which can be used in patient chairs or special transportation tools, vehicle rescue, medical transportation, etc., and can solve problems such as wheelchair steering difficulties, high friction, and damage to the edge of steps.

Pending Publication Date: 2017-10-20
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the track is in contact with the ground, the friction force is relatively large, which makes it difficult for the wheelchair to turn, that is, more force is required when turning, and the track will also damage the edge of the steps.

Method used

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Embodiment Construction

[0019] In order to make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0020] Please refer to figure 1 , figure 2 , the embodiment of the present invention provides a manual stair climbing wheelchair, comprising a handwheel 1, a turret 2, an auxiliary wheel 3 and a roller 4; the handwheel 1 is coaxially connected with the roller 4, and its diameter is smaller than the The diameter of roller 4; the auxiliary wheel 3 is fixed on the handwheel 1 through the turret 2; Side bars 23, the cross bar 22 is fixed between the two side bars 23; the handwheel 1 passes through the sphere part 21, and the sphere part 21 can rotate around the handwheel 1, and the rotation The frame 2 is movably fixed on the hand wheel 1 ; the auxiliary wheel 3 is fixed on the cross bar 22 , and the auxiliary wheel 3 is driven to rotate by rotating the s...

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Abstract

The invention discloses a manual stair climbing wheelchair which comprises hand wheels, auxiliary wheels and a rotating frame. The hand wheels and rolling wheels are coaxially fixed, the hand wheels simultaneously rotate when the rolling wheels rotate, and the auxiliary wheels do not contact with the ground at the moment. When the wheelchair needs to climb stairs, the rotating frame rotates to a state that the auxiliary wheels can completely contact with the ground, an auxiliary wheel is arranged on an upper step, an auxiliary wheel is arranged on a lower step, the wheelchair has acting points on the steps at the moment, the hand wheels are rolled to the upward direction of the step, the wheelchair moves upwards, stair climbing function of the wheelchair is achieved, a supporting rod is positioned on the rear side of the wheelchair in the stair climbing process, the wheelchair is supported, downward sliding of the wheelchair is prevented, and stability of the wheelchair in the stair climbing process is ensured.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a manual stair climbing wheelchair which can push the wheelchair upstairs by itself. Background technique [0002] Ordinary wheelchairs can facilitate the walking of the disabled, but when encountering steps, the wheelchair will be restricted, so that the range of activities of the disabled is restricted. In the related art, the crawler-type stair-climbing wheelchair realizes the step-climbing ability of the wheelchair by designing the approach angle and departure angle of the front and rear of the crawler and the height of the crawler mechanism. However, when the track is in contact with the ground, the friction force is relatively large, which makes it difficult for the wheelchair to turn, that is, more force is required when turning, and the track will also damage the edge of the step. Contents of the invention [0003] In view of this, the embodiments of the presen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61G5/06A61G5/10
CPCA61G5/061A61G5/10A61G5/1018A61G5/1035A61G5/1051A61G2203/10A61G2203/70
Inventor 陈晓鹂赵权张雨林张厚望
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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