Stair climbing wheel chair

Abstract

The invention relates to a stair climbing wheel chair, which comprises a wheel chair bottom frame, a chair, planet wheels, universal wheels, a motive power source and a control system, wherein the chair is arranged on the wheel chair bottom frame, the planet wheels comprise a planet wheel frame and planet wheel small wheels arranged on the planet wheel frame, the two planet wheels are arranged atthe front part of the wheel chair bottom frame through a planet wheel main shaft, the number of the universal wheels are two, the two universal wheels are arranged at the back part of the wheel chairbottom frame, the motive power source is arranged under the chair, the position of the control system is suitable for operators to conveniently operate, and the control system can control the planet wheels to generate the actions of advancing on the ground and climbing or going down stairs at different moments. The stair climbing wheel chair has the advantages that the stability is good, the safety is high, the time and the labor are saved, and the stair climbing wheel chair is convenient for various user groups with action inconvenience to be used.

Description

technical field [0001] The invention relates to the technical field of design and manufacture of special vehicles, in particular to a wheelchair for climbing stairs. Background technique [0002] In our life, many multi-storey buildings are not equipped with elevators. In addition, there are steps in public places such as hospitals, parks, schools, and subway stations. Special crowds bring a lot of inconvenience. In order to solve the practical problem that these special groups have difficulties in going up and down stairs and steps, there are currently many schemes for stair climbing wheelchairs. The existing stair climbing wheelchairs can be divided into continuous stair climbing wheelchairs and intermittent stair climbing wheelchairs. The principle can be divided into crawler type, track type, wheel type and walking type wheelchair. The "climbing wheelchair vehicle" disclosed in Chinese patent document CN101703440A is a crawler-type stair-climbing wheelchair. Harbin In...

AI Technical Summary

Problems solved by technology

[0004] (1) Crawler-type stair-climbing wheelchairs are heavy and inflexible in movement, and the crawlers are easy to cause damage to the stairs;

[0005] (2) The track-type stair-climbing wheelchair needs an independent special track, and the system is complicated, the cost is high, and it takes up a lot of space;

[0006] (3) Two-wheeled wheelchairs are expensive and not suitable for general public consumption;

[0007] (4) The control system of walking wheelchair is quite complex and costly

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