Stroke-Limited Fastener Structure for Repeated Quick Coupling
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Solution Overview
Problem
Conventional fastening methods using screws often result in objects that are difficult to remove and require unhandy assembly, limiting the ease of repeated coupling and separation.
Innovation Solution
A fastener structure comprising a body with a limiting structure and a fastener with a limiting portion, allowing for quick and repeated coupling and separation of objects by coordinating the limiting structure and portion to control the movement stroke of the fastener.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If screw-based lock connection is used to couple objects, then the coupling strength and stability are improved, but the ease of separation and assembly speed deteriorate
Solution Approach 1:
The fastener structure transitions from a static screw connection to a dynamic snap-fit mechanism where the fastener can be easily inserted and removed. The elastic deformation of the fastener body enables repeated coupling and separation operations while maintaining coupling strength during use.
Solution Approach 2:
The fastener is divided into distinct functional parts: the fastener body with elastic sections for engagement, the limiting structure for positioning, and the engaging portion for connection. This segmentation allows each part to perform its specific function optimally while enabling easy assembly and disassembly.
2Reliability
If screw-based fastening is used, then the reliability of fixed coupling is improved, but the assembly complexity and time consumption increase
Solution Approach 1:
The fastener body is pre-formed with elastic sections and engaging portions that are ready for immediate insertion. The limiting structure is pre-positioned on the first object, allowing the fastener to be quickly snapped into place without requiring preliminary alignment or adjustment operations.
Solution Approach 2:
The traditional screw-based mechanical fastening system is replaced with an elastic snap-fit mechanism. This substitution eliminates the need for threading, tightening, and precise torque control, dramatically reducing assembly time while maintaining coupling reliability through elastic engagement.
3Stability of the object's composition
If conventional screw connection is used, then the stability of coupled objects is improved, but the repeatability of coupling and separation deteriorates
Solution Approach 1:
The fastener utilizes elastic deformation as a key parameter change mechanism. The elastic sections of the fastener body can reversibly change their shape and stiffness, allowing the fastener to be inserted, engaged, and removed repeatedly while maintaining stable coupling during each use phase.
Data Source
AI summary
A fastener structure and an assembly method thereof are introduced. The fastener structure includes a body and a fastener. The body has a limiting structure and is for assembling at a first object. The fastener and the body are movably assembled. The fastener has a limiting portion, which coordinates with the limiting structure to limit a movement stroke of the fastener, so as to engage or disengage the fastener with or from a second object. Thus, the body can be assembled with the first object and the fastener can be engaged with or disengaged from the second object so as to complete quick coupling and separation of two objects, further achieving effects of repeated quick coupling and separation.