Foldable UAV Arm Assembly With Toggle Locking Mechanism
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Solution Overview
Problem
Existing foldable arm structures in unmanned aerial vehicles require complex locking mechanisms that complicate the folding operation, making it cumbersome for users.
Innovation Solution
An arm assembly with a rotatable connecting rod and reciprocating locking member that allows for automatic locking and easy unlocking through a simple toggle mechanism, utilizing a connecting rod to associate the rotation of the connecting rod with the reciprocation of the locking member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex locking mechanism is used to ensure the arm structure can be locked in an unfolded state during normal flight, then the reliability of the arm locking is improved, but the device complexity increases and the ease of operation deteriorates
Solution Approach 1:
The patent extracts the essential locking function from a complex multi-component mechanism and implements it through a single reciprocating locking member that moves between locked and unlocked positions. This simplifies the locking mechanism while maintaining reliability by focusing on the core locking action rather than using multiple interlocking components.
Solution Approach 2:
The arm assembly utilizes the arm's own weight and the elastic force of a spring to automatically engage the locking member with the arm in the unfolded state. The system serves itself by using inherent physical properties rather than requiring complex active control mechanisms, thereby improving reliability without increasing device complexity.
2Reliability
If a complex locking mechanism is used to ensure the arm structure can be locked in an unfolded state during normal flight, then the reliability of the arm locking is improved, but the ease of operation deteriorates
Solution Approach 1:
The patent extracts the essential locking function from a complex multi-component mechanism and implements it through a single reciprocating locking member that moves between locked and unlocked positions. This simplifies the locking mechanism while maintaining reliability by focusing on the core locking action rather than using multiple interlocking components.
Solution Approach 2:
The arm assembly utilizes the arm's own weight and the elastic force of a spring to automatically engage the locking member with the arm in the unfolded state. The system serves itself by using inherent physical properties rather than requiring complex active control mechanisms, thereby improving reliability without increasing device complexity.
3Volume of moving object
If a foldable arm structure is used to reduce spatial size during carrying and transportation, then the volume of the unmanned aerial vehicle is reduced, but the device complexity increases
Solution Approach 1:
The arm structure is designed to be dynamically changeable between folded and unfolded states through a simple reciprocating locking mechanism. The locking member moves between two positions to enable the arm to transition between configurations, providing adaptability without requiring complex mechanisms. This allows the UAV to reduce its volume for transportation while maintaining structural integrity during flight.
Solution Approach 2:
The patent extracts the essential locking function from a complex multi-component mechanism and implements it through a single reciprocating locking member that moves between locked and unlocked positions. This simplifies the locking mechanism while maintaining reliability by focusing on the core locking action rather than using multiple interlocking components.
Data Source
AI summary
Embodiments of the present disclosure relate to an arm assembly and an unmanned aerial vehicle thereof. The arm assembly includes: an arm support; an arm, where the arm is movably connected to the arm support, and is rotatable in a first direction and an opposite second direction; a locking member, where the locking member is disposed in the arm support, and is capable of abutting against or separating from the arm; and a connecting rod, where the connecting rod is connected between the locking member and the arm support, to associate rotation of the connecting rod with reciprocation of the locking member, when the locking member abuts against the arm, rotation of the arm in the first direction is capable of being restricted; and the locking member is separable from the arm driven by the rotation of the connecting rod, to release the restriction on the rotation of the arm.