Wheelchair type stairs-climbing vehicle and inclination switch of inclination control mechanism thereof

Abstract

The invention relates to an appliance for the disabled, in particular to a wheelchair type stairs-climbing vehicle. The wheelchair type stairs-climbing vehicle consists of a seat part, a front vehicle part and a rear vehicle part, wherein the seat part comprises a seat, an absorber, a speed adjustment handle and a forward / backward switch, which are mutually connected; the front vehicle part comprises a front wheel, a front frame, a wheel steering mechanism, a footrest, a first motor, a second motor, a first worm mechanism, a second worm mechanism, a lithium battery, a slide mechanism, a rubber bumper guard wheel, an inclination control mechanism and a clutch switch, which are mutually connected; and the rear vehicle part comprises a rear frame, a rear wheel mechanism, a chain, a rear wheel shield, a shield connecting rod and a clutch, which are mutually connected. The wheelchair type stairs-climbing vehicle has the characteristics of simple structure, convenient use, independent and relaxed driving by a user and free walking up and down stairs, steps, steep slopes and on flat ground under the condition of no help from other people, low manufacturing cost, high safety and the like. The invention also relates to an inclination switch of the inclination control mechanism.

Description

technical field [0001] The invention relates to an appliance for the disabled, in particular to a wheelchair type stair climbing vehicle. Background technique [0002] There are many people in the world who have normal brains and upper limbs, but are completely unable to walk due to incomplete lower limbs. Their actions generally require the help of others. As a result, many of these people cannot live as normal at home for a long time. People live and work like other people, which requires a tool that can help them walk. With the progress and development of society, the acceleration of urban construction, and the improvement of people's living environment, buildings have gradually replaced the original bungalows. In addition, streets, squares, and the hardening and greening of the ground in various places make our surroundings Stairs and steps are everywhere around and around, and ordinary wheelchairs cannot go up and down stairs and steps, so it is very inapplicable in mo...

AI Technical Summary

Problems solved by technology

The above two methods have become more complicated in the body structure and operation. Besides, different stairs have different step heights and widths. Like the above two technical methods, they are turned over under the specific stair step height and width. It is more suitable for driving. When encountering stairs with different step heights and widths, the overturned planetary wheels cannot accurately fall into the plane of the steps that need to fall, which will affect the smooth progress of the next movement, so they Both lack the adaptability to various stair steps with different heights and widths

[0006] Another disadvantage of the above-mentioned two patents is that the number of teeth on the center gear is greater than the number of teeth on the idler gear, the number of teeth on the idler gear is greater than the number of teeth on the planetary gear, or the number of teeth on the center gear is equal to the number of teeth on the idler gear and the planetary gear. Such gear transmission results Yes, not only will the entire gear train require more motor power, but also when the wheels encounter non-step resistance (such as steep slopes, etc.), the wheel frame will also cause unnecessary automatic overturning at the center wheel, causing damage to the body and Passengers bring a certain amount of trouble and danger

[0007] In addition, in some existing patented technologies of stair climbing vehicles that automatically go up and down stairs, the inclination switch designed to solve the problem of the front and rear angle inclination that occurs when the climbing columbine vehicle is running up and down stairs is different from some existing ones on the market at present. Inclination switches and inclination sensors, etc., all have certain defects and deficiencies in design, and even have not found a tilt angle switch that can well solve the front and rear angle inclination problems that occur when the climbing columbine vehicle is running up and down stairs. or tilt sensor etc.

Its reason is that technologies such as these inclination switches and inclination sensors can only adjust the front and rear or left and right tilt angles only when their carriers are in a static state. Its internal instability causes front and rear mutual interference, causing the problem that the vehicle cannot work normally

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