Intelligent horizontal-attitude stair-climbing wheelchair and rotary stair-climbing method

Abstract

The invention provides an intelligent horizontal-attitude stair-climbing wheelchair and a rotary stair-climbing method. The intelligent horizontal-attitude stair-climbing wheelchair comprises an upper plate, a switching plate and a lower plate, wherein the upper plate is fixedly connected with a chair, and rear wheels are arranged on the lower side of the chair. The chair is connected with front legs through a front leg lifting system, and front wheels are arranged on the front legs. The front leg lifting system lifts the front legs to a horizontal attitude, and four liftable outer legs are fixed to the lower side of the upper plate. The upper plate and the switching plate are connected through a steering shaft and rotate relatively to each other through the steering shaft, and the switching plate and the lower plate are connected with each other through a leading screw and realize relative rectilinear motion through the leading screw. Four liftable inner legs are fixed on the lower side of the lower plate, and the inner legs are arranged on the inner side of the outer legs. The intelligent horizontal-attitude stair-climbing wheelchair runs on a level ground fast or slow, and climb stairs to realize two functions.

Description

technical field [0001] The invention relates to a ladder climbing wheelchair with a horizontal posture and a method for climbing a spiral staircase, belonging to the technical field of intermittent stepping ladder climbing wheelchairs. Background technique [0002] Wheelchairs are an indispensable means of transportation for the disabled and the elderly. The wheelchair technology used on flat ground or with a small slope is already very mature, but in the case of stairs, for example, multi-storey buildings below six floors do not have elevators, and some public places do not have disabled access. The villa has designed a spiral staircase for aesthetics. , the wheelchair technology used needs to be improved, especially the wheelchair technology for climbing spiral stairs is even more lacking. Crawler-type stair-climbing wheelchairs cannot achieve a stable transition from an inclined plane to a plane, and the stairs are damaged when climbing stairs. When the planetary wheel ...

AI Technical Summary

Problems solved by technology

Crawler-type stair-climbing wheelchairs cannot achieve a smooth transition from an inclined plane to a plane, and the stairs are damaged when climbing stairs. The resistance moment is large during the movement process, and it is difficult to realize the reversing process.

Planetary-wheel stair-climbing wheelchairs have large movement fluctuations when climbing stairs, and the mechanism and control system for maintaining a horizontal posture are complex and poor in stability.

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