Multifunctional stair climbing wheelchair

Abstract

The invention discloses a multifunctional stair climbing wheelchair, which comprises a chair part, a switching mechanism and an auxiliary standing mechanism, wherein the switching mechanism is used for switching between roller transmission and crawler wheel transmission of the multifunctional stair climbing wheelchair; a crawler wheel further comprise a bracket, a support wheel, a first gear and a second gear which are meshed with each other, a third gear, a fourth gear which is integrated and meshed with the second gear, a fifth gear which is integrated and meshed with the third gear, and a crawler gear which is meshed with outer teeth of the fourth gear and the fifth gear and is positioned on the outer side of the support wheel; at the maximum angular speed of the crawler wheel, switching between roller transmission and the crawler wheel transmission of the multifunctional stair climbing wheelchair can be realized; and meanwhile, the auxiliary standing mechanism is used for assisting a user in standing, and the angle of the chair part is controlled, so that the levelness can be ensured in ascending and descending processes, and the safety and comfort of the stair climbing wheelchair are enhanced.

Description

Technical field [0001] The invention relates to the technical field of machinery and control, in particular to a multifunctional stair climbing wheelchair. Background technique [0002] Wheelchairs are an indispensable means of transportation for the elderly and infirm. However, traditional wheelchairs cannot cross when encountering hurdles. Among them, going up and down the stairs is the biggest obstacle for these people with limited mobility. In 200 years, in order to solve the problem of stairs in these houses, the state considered adding elevators to these houses, but due to various reasons, the plan was shelved. [0003] At present, the way to solve the problem of wheelchair users crossing stairs is to use the building's emergency evacuation transportation equipment-stair climber, that is, the wheelchair is temporarily fixed on the stair climber, and the stairs are used to go up and down. Put it back in place after use, the operation procedure is cumbersome. Although it ca...

AI Technical Summary

Problems solved by technology

[0008] The present invention is aimed at the conventional stair-climbing wheelchairs in the prior art, which have poor adaptability to stairs, cannot meet the needs of users for comfort and reliability, and cannot achieve high-precision operation output or complete more complex movements. Defects such as regularity provides a kind of multi-function stair-climbing wheelchair

[0009] Another purpose of the present invention is to provide a multi-purpose wheelchair for the existing technology, the traditional stair-climbing wheelchair has poor adaptability to stairs, cannot meet the user's needs for comfort and reliability, and the user is uncomfortable when sitting for a long time. The steps of the auxiliary standing mechanism of the functional stair climbing wheelchair

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