Height-adjustable all-round wheelchair with shock absorption

Abstract

The invention provides a height adjustable omnidirectional wheelchair with a damping function, which comprises a middle chair body and two deformation traveling parts which are symmetrically arranged at both sides of the middle chair body and have the damping function; each deformation traveling part with the damping function comprises a rack, epicyclic gear train assemblies, an angle regulation device and a traveling assembly; each deformation traveling part is provided with two epicyclic gear train assemblies, the two epicyclic gear train assemblies are arranged symmetrically, and each epicyclic gear train assembly comprises a sun gear, a rotating arm, a planet gear and a damping element; the damping elements are respectively connected with the corresponding racks and the corresponding rotating arms, and each angle regulation device is connected with two sun gears; each angle regulation device can enable the two sun gears to reversely rotate so as to drive the planet gears meshed with the sun gears and the traveling assembly connected with the planet gears to reversely rotate to implement regulation on a height of the corresponding traveling part; due to existence of the damping elements, when the traveling assemblies are subjected to exogenous shocks, the rotating arms can elastically swing in a certain range, so that the traveling parts have damping performance; therefore, the height adjustable omnidirectional wheelchair can realize height regulation and has the damping function.

Description

technical field [0001] The invention relates to the technical field of intelligent wheelchairs and robots, in particular to a height-adjustable omnidirectional wheelchair with a shock-absorbing function. Background technique [0002] With the improvement of living standards and the acceleration of population aging, wheelchairs have become an indispensable means of transportation for the elderly and patients with lower limb disabilities. At the same time, the requirements for the performance of wheelchairs are getting higher and higher. The mobility of the omni-directional mobile platform based on the Mecanum wheel can realize movement in any direction, which is very suitable for occasions where the space is small and the mobility performance is high. There have been examples of using the Mecanum wheel for wheelchairs, such as the article Omnidirectional mobile adjustable wheelchair in "Design of Omnidirectional Mobile Adjustable Wheelchair" (article number: 1674-6236(2015) 0...

AI Technical Summary

Problems solved by technology

The mobility of the omnidirectional mobile platform based on the mecanum wheel can realize movement in any direction, which is very suitable for the occasions where the space is small and the mobility performance is high. There have been examples of using the mecanum wheel for wheelchairs, such as the article Omnidirectional mobile adjustable wheelchair in "Design of Omnidirectional Mobile Adjustable Wheelchair" (article number: 1674-6236 (2015) 03-0066-03), but the chassis height of this wheelchair is very low and cannot be adjusted. It is easy to be blocked by obstacles; at the same time, the mobile platform based on the Mecanum wheel has certain vibrations during motion, which affects the comfort, but this wheelchair does not take any shock absorption measures

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