Dual-purpose electric wheelchair capable of going up and down stair and moving on flat road

Abstract

The invention discloses a dual-purpose electric wheelchair capable of going up and down a stair and moving on a flat road, which belongs to the technical field of special equipment for the limb disabled, the old, the weak, the sick and pregnant groups. The dual-purpose electric wheelchair is provided with a seat frame 11 and a back frame mounted on the seat frame. The back frame is provided with a reversing switch 1 for controlling the wheelchair to move forwards or backwards. A battery 9, a motor 10, a speed reducer 8 and a driving chain are arranged in the seat frame. A driving half shaft 25 is arranged below the seat frame. The driving half shaft is provided with a driving chain wheel 19 and an assembled driving wheel body 17. A steering brake 18 is arranged in the wheel body. The assembled driving wheel body consists of 3 to 5 semicircle satellite wheels and 3 to 5 fan-shaped plates 20, and the number can be any one from 3 to 5. When the dual-purpose electric wheelchair goes up and down the stair, the fan-shaped plates are demounted, and the fan-shaped plates are mounted so that the plates form round wheel bodies when the wheelchair moves on the flat road, thus the dual-purpose electric wheelchair can go up and down the stair or move on the flat road smoothly. The dual-purpose electric wheelchair has the characteristics of reasonable structure, easy operation, smooth movement, and safety and reliability.

Description

technical field [0001] The invention belongs to a small vehicle, in particular to a dual-purpose electric wheelchair capable of walking up and down stairs and on flat roads, and belongs to the technical field of special equipment for people with lower limb disabilities and the elderly, weak, sick and pregnant. Background technique [0002] In order to facilitate the walking of the disabled and the elderly, the weak, the sick, and pregnant people, wheelchairs have been produced. There are roughly three types of wheelchairs in China: one is a wheelchair without power, which is pushed by the guardian or can be operated by the occupant. It is limited to walking on flat roads; the second type is an electric wheelchair, which is also limited to walking on flat roads; the third type is an electric stair-climbing wheelchair, but it is also limited to use up and down stairs, and cannot walk on flat roads. There are also many related products abroad, which are expensive, so it is nece...

AI Technical Summary

Problems solved by technology

[0002] In order to facilitate the walking of the disabled and the elderly, the weak, the sick, and pregnant people, wheelchairs have been produced. There are roughly three types of wheelchairs in China: one is a wheelchair without power, which is pushed by the guardian or can be operated by the occupant. Only limited to walking on flat roads; the second type is an electric wheelchair, which is also limited to walking on flat roads; the third type is an electric stair-climbing wheelchair, but it is also limited to use up and down stairs, and cannot walk on flat roads

There are also many related products in foreign countries, which are expensive. Therefore, it is necessary to propose a dual-purpose electric wheelchair with moderate price, multiple functions, simple structure, strong applicability, better performance and the function of walking up and down stairs and on flat roads.

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