Wheelchair capable of walking up and down stairs

Abstract

The invention discloses a wheelchair capable of walking up and down stairs. The wheelchair comprises a wheel carrier, wherein the top surface of the wheel carrier is provided with a seat; the wheel carrier comprises two strip-shaped brackets which are arranged horizontally in parallel; the inner sides of the two strip-shaped brackets are provided with connecting frames, and the two ends of the connecting frames are connected with the strip-shaped brackets respectively; the outer sides of the front and back ends of the strip-shaped brackets are provided with electric walking wheels for walking; the lower surfaces of the front and back ends of the strip-shaped brackets are provided with frame legs extending downwards and vertically respectively; a stair climbing device which is parallel to the strip-shaped bracket is further arranged between the two frame legs; the front end and the back end of the stair climbing device are provided with elastic connectors, and are connected with the frame legs respectively; the stair climbing device is provided with a plurality of stair climbing wheels for climbing stairs along the frontward-backward direction; the lowest points of the stair climbing wheels are higher than the lowest points of the electric walking wheels. The wheelchair has the advantages of simple structure, convenience in operation, low manufacturing cost, capability of walking up and down stairs stably, high stability, capability of preventing overturning and high climbing efficiency.

Description

technical field [0001] The invention relates to a wheelchair, in particular to a wheelchair capable of going up and down stairs. Background technique [0002] Wheelchairs are not only a means of transportation for the elderly, infirm and physically disabled, but more importantly, they enable them to perform physical exercises and participate in social activities with the help of wheelchairs. However, most traditional wheelchairs can only travel on flat ground, and cannot cross obstacles such as steps and thresholds, let alone climb stairs, so the range of activities of wheelchair personnel is greatly limited. In order to solve the above problems and better care for the travel of the elderly and the disabled, in addition to the barrier-free design of various public constructions, the use of wheelchairs is also added, so that it can travel on flat ground and go up and down stairs. [0003] In recent years, many companies, universities and research institutions at home and abr...

AI Technical Summary

Problems solved by technology

In addition, crawler structures tend to be heavy in size, and for wooden stairs or other low-strength stairs, the friction of the tracks when climbing can cause serious damage to the stairs themselves

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