Robot Handrail Dynamic Locking Mechanism for Stability
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Solution Overview
Problem
Existing handrails for robots, typically of a pull rod structure, shake significantly during use, resulting in a poor user experience.
Innovation Solution
A handrail design featuring a handrail bar with rotatingly connected ends, unlocking pieces, and reset springs that lock into place when fully opened, preventing up and down rotation and thus reducing shaking, and allowing for easy folding and resetting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a pull rod structure is used for the handrail, then the structure is simple, but the handrail shakes greatly during use
Solution Approach 1:
The handrail incorporates a dynamic locking mechanism that transitions from a movable state during folding to a locked stable state during use. The unlocking pieces can move relative to the connecting pieces, allowing the handrail to be folded for storage and then locked into a stable position for use, resolving the contradiction between simplicity and stability.
Solution Approach 2:
Unlocking pieces serve as intermediary elements between the handrail bar and connecting pieces. These unlocking pieces with locking blocks interact with locking slots to provide the stabilizing function, allowing the simple pull rod structure to achieve stability through the mediating locking mechanism.
2Stability of the object's composition
If the handrail is made lockable to prevent shaking, then stability is improved, but the device complexity increases
Solution Approach 1:
The locking mechanism is self-activating through reset springs that automatically drive the unlocking pieces to move away from the connecting pieces, causing locking blocks to be inserted into locking slots. This self-locking feature achieves stability without requiring complex control systems or additional actuators.
Solution Approach 2:
The patent replaces complex mechanical locking systems with a spring-driven automatic locking mechanism. The reset springs provide the necessary force to engage the locking blocks with locking slots, simplifying the overall mechanism while maintaining stability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The handrail remains stable and locked during use, preventing shaking and enhancing user convenience while allowing for easy folding and resetting.
Implementation Method 1
When the two unlocking pieces move close to the two connecting pieces, the two reset springs generate elastic deformation. Elastic force generated by elastic deformation of the two reset springs is configured for driving the two unlocking pieces to move away from the two connecting pieces
Data Source
AI summary
The disclosure provides a handrail and a robot having the handrail. The handrail includes a handrail bar, two unlocking pieces and two connecting pieces, the two connecting pieces are spaced apart. The handrail bar includes two connecting ends respectively located on the two ends of handrail bar. The two connecting ends are respectively rotatingly connected to the two connecting pieces, and the two unlocking pieces respectively correspond to the two connecting ends and the two connecting pieces. Each of the two unlocking pieces passes through corresponding connecting end of the two connecting ends and is then inserted into corresponding connecting piece of the two connecting pieces, and is able to move relative to the corresponding connecting piece of the two connecting pieces. Locking blocks are provided on both of the two unlocking pieces, and locking slots are provided on both of the two connecting ends.