Wheel-track combined stair climbing wheelchair

Abstract

The invention relates to the technical field of wheelchairs, particularly provides a wheel-track combined stair climbing wheelchair, and aims at solving the problems that an existing wheel-track combined stair climbing wheelchair is slightly high in the whole gravity center and unsmooth in travelling when being used for going upstairs and downstairs by switching travelling modes through elevationof a track mechanism. Out of the purpose, the wheel-track combined stair climbing wheelchair comprises a rack, a seat, a track travelling mechanism, a plurality of travelling wheels and a synchronousswitching mechanism arranged on the rack, wherein the seat, the track travelling mechanism and the travelling wheels are arranged on the rack; the plurality of travelling wheels are connected with therack through the synchronous switching mechanism; and the synchronous switching mechanism is used for synchronously adjusting the height of the plurality of travelling wheels relative to the track travelling mechanism. Due to the arrangement, the center of gravity is lowered when the wheelchair moves upstairs and downstairs, the smoothness for moving upstairs and downstairs can be improved, and the risk of toppling over can be reduced.

Description

Technical field [0001] The invention relates to the technical field of wheelchairs, and specifically provides a wheel-track composite stair climbing wheelchair. Background technique [0002] The wheel-track composite stair-climbing wheelchair includes a bracket on which a seat, a crawler mechanism, a flat walking wheel and a switching mechanism are arranged. When driving on flat ground, the switching mechanism makes the crawler mechanism move upward and away from the ground, and at the same time, the flat traveling wheel touches the ground, and the flat traveling wheel walks on the flat ground; when going up and down the stairs, the switching mechanism makes the crawler mechanism move downward to touch the ground, and at the same time the flat traveling wheel And off the ground, the crawler mechanism is used to complete the up and down stairs. [0003] However, for a wheel-crawler composite stair-climbing wheelchair that realizes the switching between the crawler mechanism and the...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problem that the existing wheel-track compound stair-climbing wheelchair realizes the switching of the walking mode through the lifting and lowering track mechanism, the overall center of gravity is too high and the walking is not stable when going up and down the stairs. The invention provides a wheel-track compound stair-climbing wheelchair, which includes a bracket, a seat arranged on the bracket, a crawler running mechanism and a plurality of walking wheels, and the wheelchair also includes a synchronous switching mechanism arranged on the bracket , the plurality of road wheels are connected to the bracket through the synchronous switching mechanism, and the synchronous switching mechanism is used to synchronously adjust the height of the plurality of road wheels relative to the crawler belt traveling mechanism

Images