Obstacle crossing device for electric wheelchair and electric wheelchair adopting same

Abstract

The invention provides an obstacle crossing device for an electric wheelchair and the electric wheelchair adopting the same in the technical field of wheelchairs. The obstacle crossing device comprises a guide rail frame, a connecting block, a steering rod and an inclined plate; the guide rail frame is fixedly arranged on a chair body; front rolling wheels and rear rolling wheels are arranged below the chair body in a rolling mode; the connecting block is arranged in the guide rail frame in a sliding mode and rotationally arranged corresponding to the guide rail frame; the steering rod penetrates through the connecting block; the inclined plate is arranged at the lower end of the steering rod and connected with a baffle; a supporting part is arranged at the joint of the inclined plate and the baffle; the supporting part extends in the direction away from the steering rod. the baffle is in contact with an obstacle along with advancing of the chair body; the supporting part is arranged on an upper plane of the obstacle in a contact mode; the front rolling wheels and the rear rolling wheels sequentially roll to the upper plane of the obstacle from the inclined plate; and the connecting block slides backwards in the guide rail frame along with advancing of the chair body. According to the invention, the guide rail frame is combined with the steering rod, so that under the condition of not adding a driving force device, the obstacle crossing capacity of the wheelchair is improved, the structure is simple, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of wheelchairs, in particular to an obstacle-surmounting device for an electric wheelchair and the electric wheelchair thereof. Background technique [0002] Electric wheelchairs are transformed and upgraded on the basis of driving manual wheelchairs, superimposed with high-performance power drive devices, intelligent control devices, batteries and other components. With artificially operated intelligent controllers, they can drive wheelchairs to complete forward, backward, turning, standing, A new generation of intelligent wheelchair with multiple functions such as lying down and lying down is a high-tech product combining modern precision machinery, intelligent numerical control, engineering mechanics and other fields. [0003] Two-wheel drive electric wheelchairs are the main way for the elderly and the disabled to travel. However, when the disabled use electric wheelchairs to go out, the road conditions ...

AI Technical Summary

Problems solved by technology

[0004] However, electric wheelchairs in my country generally only add power sources and control units on the basis of manual wheelchairs, with single functions, and cannot fully meet the actual needs of the elderly and disabled in terms of safety, reliability and functionality.

In addition, ordinary electric wheelchairs are only suitable for use on flat ground, and rarely have the ability to climb over roadblocks

The electric wheelchairs with obstacle-surmounting ability can be classified into wheel-set type, crawler type and multi-legged type according to the type of obstacle-surmounting execution structure. Affordable

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