Wheel and track switching wheelchair

Abstract

The invention discloses a wheel and track switching wheelchair, belonging to the technical field of wheelchairs. The wheel and track switching wheelchair comprises a main frame, wherein a seat is provided on the main frame, and a controller is provided on the seat; the lower surface of the main frame is rotatably connected with a rotating shaft, the two ends of the rotating shaft are fixedly connected with a driving wheel and a driving gear, the radius of the driving gear is smaller than the radius of the driving wheel, and a steering wheel is also arranged on the lower surface of the main frame; a motor for driving the rotating shaft is arranged on the main frame, and is electrically connected with the controller; the side surface of the main frame is provided with a supporting rod, one end, away from the main frame, of the supporting rod is rotatably connected with a track mechanism which comprises a track, a belt pulley, a rotating shaft and a connecting rod; a driven gear is arranged on the rotating shaft away from the supporting rod; the driven gear is fixedly connected with the belt pulley; the driven gear and the driving gear are meshed with each other, a return spring is arranged on the connecting rod, and one end, away from the connecting rod, of the return spring is fixedly connected onto the main frame. The wheelchair disclosed by the invention can run both on the ground and stairs, and the switching of a wheel and the track can be completed by simply controlling the rotation of the main frame.

Description

technical field [0001] The invention relates to the technical field of wheelchairs, in particular to a wheel-track switchable wheelchair. Background technique [0002] With the increasingly serious phenomenon of aging in China and the increasing number of people with lower limb disabilities due to accidents such as work-related injuries and car accidents, the rapid development of the pension industry and the disabled industry has been promoted. Wheelchairs are an indispensable walking aid for the elderly and people with lower limb disabilities. It greatly facilitates their daily travel. However, wheelchairs can only walk on flat surfaces and cannot pass obstacles such as stairs. Therefore, how to solve the problem of moving efficiently and quickly on flat ground and stairs is a difficult problem faced by researchers at home and abroad. [0003] Aiming at this practical problem, there are similar solutions at present, such as the combination of some wheels, the effect of th...

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Problems solved by technology

[0003] Aiming at this practical problem, there are similar solutions at present, such as the combination of some wheels, the effect of these wheelchairs climbing stairs is not very good, and the switching is too complicated; there are also some forms of crawler structures, these wheelchairs are relatively Bulky, slow to move on flat ground, not very nimble

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