Transformable wheel and mobile robot

By designing adaptive switching deformable wheels and utilizing the posture changes of folding parts, the problem of versatility of the mobile mechanism between hard and soft ground was solved, enabling efficient driving in different terrains.

CN122253579APending Publication Date: 2026-06-23SOUTHERN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTHERN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Filing Date
2026-04-07
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing mobile mechanisms have poor versatility in different terrains, especially in their difficulty to adapt and switch between hard and soft surfaces, resulting in slippage in soft media or low driving efficiency on hard surfaces.

Method used

Design a deformable wheel that unfolds or retracts along the axis using multiple folding components to form a rolling annular surface or angled cut into the ground, enabling adaptive switching between hard and flexible surfaces and improving passability by utilizing the posture changes of the folding components.

Benefits of technology

It can adaptively switch between hard and soft surfaces, significantly improving obstacle crossing ability and traffic efficiency, while reducing the complexity of the control system and energy consumption.

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Abstract

The application discloses a transformable wheel and a mobile robot. The transformable wheel comprises a plurality of folding pieces, which can be unfolded to a first posture or folded to a second posture along the extension direction of the shaft center line of the transformable wheel. In the second posture, each folding piece is perpendicular to the shaft center line, and the outer circumferential surfaces of the plurality of folding pieces jointly form a rolling torus for rolling contact with the ground. In the first posture, the folding pieces are inclined to the shaft center line. The transformable wheel and the mobile robot can adaptively switch between hard ground and flexible ground to improve the passability.
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