An adjustable electric ladder wheelchair

Abstract

The invention provides an adjustable electric ladder-climbing wheelchair, comprising a seat body frame (1), a driving wheel structure (2), an auxiliary wheel structure (3) and a drive control assembly (4). The driving wheel structure (2) It includes a drive motor (21), a telescopic assembly (22), a gearbox assembly (23), a sliding sleeve assembly (24), an inner wheel disc (25) and an outer wheel rim (26); wherein the telescopic assembly (22) includes A telescopic rod (221), an electric annular sliding sleeve (222), a drive gear (223), a positioning gear rod (224) and a positioning gear (225), the transmission assembly (23) includes a speed change gear pair (231), a gear bar (232) and putter (233). The electric ladder-climbing wheelchair can effectively realize the switching between the flat ground and the ladder, with simple operation and high stability; at the same time, the wheelchair is light in weight, runs smoothly when climbing the ladder, does not cause road damage, and has strong practicability, high safety and good comfort.

Description

technical field [0001] The invention relates to the technical field of wheelchairs, in particular to an adjustable electric ladder-climbing wheelchair. Background technique [0002] Wheelchair is an important tool for medical rehabilitation. It is not only a means of transportation for the physically disabled or people with limited mobility, but more importantly, it enables the above patients to exercise and participate in social activities with the help of wheelchairs. Ordinary wheelchairs are generally composed of four parts: wheelchair frame, wheels, braking device and seat. The hand-crank wheelchair adds a hand-crank device on the basis of the ordinary wheelchair; the electric wheelchair adds an electronic power assist system on the basis of the ordinary wheelchair, which reduces the physical exertion of the user; on the basis of the electric wheelchair, the intelligent wheelchair adds positioning, moving and standing. Mobility, telemove, and Internet-related functions ...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, wheelchairs with stair-climbing functions are mainly divided into three categories, namely: leg-foot type, planetary wheel type, and crawler type; leg-foot type wheelchairs are complex in structure and high in cost, and cannot be used in the market; single planetary wheel type Crawler-type wheelchairs have large fluctuations in movement, are prone to large bumps, and have poor stability; crawler-type wheelchairs are large in size and weight, and are easy to damage the road or stairs.

It can be seen that although electric stair-climbing wheelchairs are needed by the majority of disabled people, elderly people with inconvenient legs and hemiplegia patients, the constraints of many conditions make it difficult to popularize stair-climbing wheelchairs

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