Full range of motion wheelchair with center of gravity adjustment

Abstract

The invention discloses an omni-directionally movable wheelchair with a gravity center adjusting function. The omni-directionally movable wheelchair comprises a chair, an electric push rod, an omni-directionally movable platform, inclination angle measuring devices, a control unit and a power source. The chair is movably connected with the omni-directionally movable platform, two ends of the electric push rod are respectively hinged to the bottom surface of the chair and the omni-directionally movable platform, inclination angles between planes of the chair and the ground can be sensed by the inclination angle measuring devices, angle values can be transmitted to the control unit by the inclination angle measuring devices, the electric push rod can be extended and retracted under the control of the control unit so that the planes of the chair can keep parallel to the horizontal plane, and the electric push rod, the omni-directionally movable platform, the inclination angle measuring devices and the control unit are powered by the power source. The omni-directionally movable wheelchair has the advantages that the wheelchair can move omni-directionally and has an automatic balance adjusting function; the omni-directionally movable wheelchair with characteristics of zero rotation radius and flexible and free movement is applicable to environments with narrow spaces, and accordingly the action capacity of users and the comfort can be improved.

Description

technical field [0001] The invention relates to an electric wheelchair, in particular to an electric wheelchair capable of adapting to small spaces and slope environments. Background technique [0002] With the improvement of living standards and the acceleration of population aging, electric wheelchairs have become an indispensable means of transportation for the elderly and patients with lower limb disabilities. The existing electric wheelchairs on the market are generally supported by two small wheels in the front and driven by two large wheels in the back. The turning radius is large, which is not suitable for use in narrow spaces such as elevators. received more and more attention. Among them, the omnidirectional movement mechanism is the basis of the omnidirectional sports wheelchair. More omni-directional mobile mechanisms are generally realized by using special wheels, which can move actively in one direction and passively in the other direction. The common special...

AI Technical Summary

Problems solved by technology

The all-round mobile wheelchair composed of Mecanum wheels has the advantages of not needing an independent steering drive mechanism, simple control, quick response, and flexible operation. However, due to the gap between the rollers, it is easy to cause vibration or slip of the car body, and This type of wheel has high requirements for processing design

The problem of continuous switching wheels is similar to that of Mecanum wheels, because when the wheel disc rotates, the discontinuous contact between the rollers and the ground is likely to cause the robot to vibrate and slip

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