Multifunctional stair-climbing wheelchair

Abstract

The invention discloses a multifunctional stair-climbing wheelchair which comprises a wheelchair device, a chassis driving device, a stair-climbing star wheel, a lifting device, a direction device and a control device. The chassis driving device comprises a walking motor, a stair-climbing motor, a stair-climbing wheel variable shaft, a main inner shaft, a main outer shaft, a first walking chain wheel, a plurality of second walking chain wheels, a first stair-climbing chain wheel, a second stair-climbing chain wheel, a plurality of adjusting elastic wheels, wheels, a walking chain and a stair-climbing chain. The multifunctional stair-climbing wheelchair solves the problem that a stair-climbing wheelchair in the prior art is inconvenient to use, high in destructive effect, difficult to maintain, high in maintenance cost, complex in structure and low in safety factor and cost performance. The multifunctional stair-climbing wheelchair has the advantages that the wheelchair is simple in structure, stair climbing and ground motions do not interfere with each other, users can freely park and turn when they are on the flat ground or go upstairs, and the wheelchair is cheap in construction cost, convenient to maintain, good in safety performance, simple and convenient to operate, good in guiding performance and wide in applied range.

Description

technical field [0001] The invention relates to wheelchair technology, in particular to a multifunctional stair-climbing wheelchair. Background technique [0002] With the development of society, a large number of buildings have been built in various parts of the world, and many buildings with low floors or relatively old-fashioned buildings do not have elevators. In addition, many places such as hospitals, parks, subway stations and other public places There are also steps in the middle, which brings a lot of inconvenience to the movement of special groups such as the elderly, the weak, the sick, the disabled, and pregnant. [0003] In the prior art, in order to solve the above problems, some stair-climbing wheelchairs have also been developed, such as the tank crawler-type stair-climbing chair produced in Japan, and the Chinese patent No. is 201110234169.X. The stair-climbing wheelchair mainly includes a wheelchair chassis, Seat, planetary wheel, universal wheel, power so...

AI Technical Summary

Problems solved by technology

[0005] 1. When a crawler-type stair-climbing wheelchair is used, the rotation radius is large, the stairs are narrow, and the applicability is poor. In addition, the crawler is destructive to the ground and the maintenance cost is high;

[0006] 2. When the planetary wheel type wheelchair is used for climbing stairs, it needs the cooperation of the transmission device and the cooperation of the clutch device to realize it. The structure is complicated, the cost is expensive and the maintenance is inconvenient;

[0007] 3. When a two-wheeled stair climbing wheelchair is used, the bumps and vibrations are large, which will affect the health of the elderly;

[0008] 4. There is no special mechanism to prevent accidents, and the safety performance is poor;

[0009] 5. The wheelchair is poorly oriented and inconvenient to operate;

[0010] 6. When the wheelchair climbs the stairs, it needs to tilt backward at an angle, which cannot be adjusted according to the actual situation, and the use performance is poor

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