A multifunctional obstacle-climbing wheelchair and an obstacle-climbing method

Abstract

The invention discloses a multifunctional wheelchair for crossing obstacles and climbing stairs, and relates to the technical field of wheelchairs. The wheelchair comprises a wheelchair frame, front driving wheels, rear driving wheels, a drive motor, and a climbing mechanism. The climbing mechanism comprises a connecting shaft, a transmission part, a pushing and pulling part, a support part, a climbing part 1, and a climbing part 2. The pushing and pulling part is driven to achieve the action that when a left side of the pushing and pulling part is lifted up, a right side of the pushing and pulling part is lifted up is pushed down at the same time and the action of transverse movement to left and right under the role of the support part by the rotation of the transmission part, thus the purposes of being able to walk and climbing stairs like a normal human can be achieved. The wheelchair of the invention realizes the action of climbing stairs by using a linkage mode, and has a simple structure. Moreover, when climbing action is not performed, the climbing part 2 can be folded under the role of a telescopic device, thus the front driving wheels and the rear driving wheels are in contact with the ground to realize ground walking motion, and the problem of slow motion when walking on flat ground is solved.

Description

technical field [0001] The invention relates to the technical field of wheelchairs, in particular to a multifunctional obstacle-climbing wheelchair. Background technique [0002] With the intensification of China's aging population: by the end of last year, China's population over the age of 60 had reached 240 million, accounting for about 17.9% of the total population. In addition, the disabled population has reached 80 million. How to help the above-mentioned groups to better integrate into society and live and work in peace and contentment is a major problem that Chinese society needs to solve urgently. [0003] Wheelchairs have been used as a means of transportation for special groups of people for a long time, but ordinary wheelchairs cannot be used in complex road conditions such as stairs and ravines. An obstacle-climbing wheelchair is needed to help them solve this dilemma. [0004] Among them, the step-support stair-climbing wheelchair has a history of nearly a hu...

AI Technical Summary

Problems solved by technology

[0005] One of the objectives of the present invention is to solve the above-mentioned deficiencies in the prior art that the step-supported stair climbing wheelchair has a complex structure and walks slowly on flat ground, and provide a new type of stair climbing structure that is simple in structure and can climb on all fours. The operation is completed up and down the stairs, and the structure can be hidden in the wheelchair, which can be used not only as a wheelchair for climbing stairs, but also as an ordinary wheelchair after transformation

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