Pivot Locking Trolley Coupling for Vibration Stability
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Solution Overview
Problem
Conventional trolley coupling structures are prone to uncoupling due to vertical vibration and lack visual confirmation of the coupling state, especially when using different parts like pins for locking.
Innovation Solution
A trolley coupling structure featuring a locking member with a pivotally attached body and a constraining piece that fits into recessed sections on both trolleys, providing a secure and visually confirmable connection, with bent sections and spaces to prevent protrusion and ensure stability during vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple pin or protruding-recess structure is used for coupling, then the device complexity is reduced, but the reliability of coupling under vertical vibration deteriorates
Solution Approach 1:
The locking member is designed to pivot between locked and unlocked positions, transforming a static pin structure into a dynamic mechanism that actively responds to vibration forces. The pivotable body portion rotates about a pivot axis to engage and disengage from the recess portion, providing adaptive locking that maintains reliability under vertical vibration while keeping the overall structure relatively simple
Solution Approach 2:
The locking member is收纳 (stored) within the coupling structure when not in use, and deployed when coupling is needed. The recess portion is formed in the base portion to accommodate the locking member, creating a nested arrangement that reduces device complexity while maintaining reliable coupling through the pivotable engagement mechanism
2Reliability
If a locking member is used to secure the coupling, then the reliability under vibration is improved, but the device complexity increases
Solution Approach 1:
The locking member is designed to pivot between locked and unlocked positions, transforming a static pin structure into a dynamic mechanism that actively responds to vibration forces. The pivotable body portion rotates about a pivot axis to engage and disengage from the recess portion, providing adaptive locking that maintains reliability under vertical vibration while keeping the overall structure relatively simple
Solution Approach 2:
The locking member's pivotable design allows it to automatically engage or disengage in response to vibration forces without requiring additional actuators or complex control mechanisms. The gravity-assisted pivot motion and the geometric arrangement of the body and recess portions enable self-locking and self-unlocking behavior, improving reliability while avoiding excessive complexity
3Ease of operation
If the locking member protrudes onto the base for visual confirmation, then the ease of operation is improved, but the device complexity increases due to additional mechanisms
Solution Approach 1:
The locking member incorporates a visual indicator mechanism where the position of the body portion relative to the base portion changes color or reflectivity based on the locked/unlocked state. When the body is in the locked position, it presents a different visual appearance (such as a colored surface or reflective quality) compared to when it is unlocked, providing clear visual confirmation without requiring the member to protrude or adding complex mechanical indicators
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 solution ensures the locking member remains secure during up-and-down and left-and-right vibrations, allowing for easy visual confirmation of the coupling state without protruding onto the base, thus enhancing safety and reliability.
Implementation Method 1
a body part which is pivotally attached to a base end side of the first recess part body through a pivot
Data Source
AI summary
The present invention relates to a novel trolley coupling structure that allows coupling of base parts of trolleys aligned in the vertical or horizontal direction. The present invention provides a trolley coupling structure in which a first receiving recess part is provided in a base part of one trolley, a second receiving recess part is provided in a base part of another trolley, a locking member is pivotally attached to the first receiving recess part, a recess part body and a bent section are formed in the respective first and second receiving recess parts, and retaining of the locking member is achieved by constraining and locking a constraining piece part of the locking member at the bent section.