Full-automatic hydraulic lifting marching type electric stair climbing wheelchair

Abstract

The invention relates to a full-automatic hydraulic lifting marching type electric stair climbing wheelchair which can provide a walking replacing tool for a patient without the lower limb walking function to independently walk up and down stairs. The full-automatic hydraulic lifting marching type electric stair climbing wheelchair is characterized in that a simple hydraulic power system synchronously drives two pairs of light hydraulic cylinders which are installed on sliding rails installed on the two sides of a cuboid seat, altitude differences of the light hydraulic cylinders are adjustable, the part of the seat vertically ascends or descends;. A direct current motor drives a rack to enable the hydraulic cylinder and the seat to be alternatively, horizontally and forwards moved to achieve the stair climbing motion. When the seat is moved to a next stage of step, the front portions of the two miniature hydraulic cylinders installed on the inner side of the front portion of the seat can be stably and reliably supported to the prior stage of step. The back portion of the upper layer of the seat of a U-type bushing type structure can be backwards moved to the position above a toilet bowl through the sliding rails, holes are reserved, and a rider can independently go to a toilet. The wheelchair can steer at will in situ in narrow space through a hydraulic steering mechanism installed in the middle of the lower portion of the wheelchair.

Description

technical field [0001] The invention belongs to a novel wheelchair for climbing stairs. Background technique [0002] At present, most stair-climbing wheelchairs sold in the domestic market are composed of star wheel components and track components. The support point of the wheelchair deviates from the center of gravity of the wheelchair, which cannot maintain balance, and the safety is poor. The occupant must operate with the help of others to go up and down the stairs, and the operation is complicated. Although the crawler components and individual imported stair-climbing wheelchairs have realized the function of the occupant's autonomous operation up and down the stairs, they are demanding on the stairs, and they are large in size and expensive, which is difficult for ordinary people to bear. Contents of the invention [0003] In order to overcome the above disadvantages, the present invention first uses a simple hydraulic power system to synchronously drive two pairs ...

AI Technical Summary

Problems solved by technology

[0002] At present, most stair-climbing wheelchairs sold in the domestic market are composed of star wheel components and track components. The support point of the wheelchair deviates from the center of gravity of the wheelchair, which makes it impossible to maintain balance and poor safety. The occupant must operate with the help of others to go up and down the stairs, and the operation is complicated

Although the track components and individual imported stair-climbing wheelchairs realize the function of the occupant's autonomous operation up and down the stairs, they are demanding on the stairs, and they are large in size and expensive, which is unaffordable for ordinary people

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