A bionic bird leg foot mechanism based on tendon locking

By designing a bionic bird leg mechanism based on tendon locking, the problem of poor adaptability of drones in complex environments was solved, achieving stable perching and grasping functions, and improving the adaptability and energy efficiency of drones in different terrains.

CN117022717BActive Publication Date: 2026-05-29BEIHANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIHANG UNIV
Filing Date
2023-06-18
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing drone habitats are poorly adaptable to specific environments and cannot effectively simulate the habitat and capture functions of birds, especially in open outdoor environments and complex terrains such as tree branches.

Method used

Design a bionic bird leg and foot mechanism based on tendon locking, including a leg movement mechanism, a foot, a toe assembly, and a toe movement traction rope assembly. The self-locking assembly allows the toes to switch between extension and flexion states, and the claw is locked by tendon locking.

Benefits of technology

It enables drones to stably perch and grasp in complex environments, locking the claw without additional auxiliary mechanisms, thus improving the drone's adaptability and energy efficiency in different terrains.

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Abstract

The application discloses a bionic bird leg foot mechanism based on tendon locking. The bionic bird leg foot mechanism based on tendon locking comprises a leg movement mechanism, a foot sole connected with the leg movement mechanism, toe assemblies, each of which is connected with the foot sole, and each of the toe assemblies comprises a toe body assembly and a self-locking assembly, and a toe movement traction rope assembly used for converting the toe body assembly between an extension state and a flexion state. When the toe movement traction rope assembly moves the toe body assembly and is in the flexion state, the self-locking assembly locks the toe body assembly, so that the toe body assembly is prevented from converting from the flexion state to the extension state under the action of an external force. The self-locking assembly of the application locks the toe body assembly when the toe movement traction rope assembly moves the toe body assembly and is in the flexion state. The structure can realize grasping and locking, and an additional auxiliary mechanism is not needed to lock the claw.
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Citation Information

Patent Citations

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