Turning Interlocking Coupling Structure for Quick Release Fastening

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Solution Overview

Problem

Conventional coupling methods, such as screw-based lock connections, complicate the disassembly process and can result in insecure assembly, making it difficult to achieve quick and repeated coupling and separation of objects.

Innovation Solution

A turning interlocking coupling structure comprising a head with a limiting portion, a fastening portion coupled to the head, and a body with stopping portions, which allows the fastening portion to be easily connected or disconnected from a second object by turning the head, utilizing a bolt connector and elastic elements for stable coupling and separation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If screw-based lock connection is used to couple objects, then the assembly is secure and stable, but the disassembly process becomes complicated and time-consuming

Engineering Contradiction:
Improveassembly stabilityVSAvoiddisassembly ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The coupling structure employs a dynamic locking mechanism where the locking ball can move between locked and unlocked positions. The spring provides continuous elastic force to maintain the locking ball against the locking groove, ensuring stable locking while allowing quick release when force is applied to the pulling ring. This dynamic system resolves the contradiction between secure assembly and easy disassembly.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The coupling structure utilizes self-locking through the interaction between the locking ball and locking groove, combined with spring-loaded maintenance of the locked state. The design automatically maintains secure connection without requiring continuous external force, while the pulling ring provides a simple interface for quick release. This self-service mechanism achieves both reliability and operational ease.

Inventive Principle:
Principle #25Self-service

2Reliability

If conventional fixing means are used to couple objects, then the connection is secure, but the assembly process becomes complicated

Engineering Contradiction:
Improveconnection securityVSAvoidassembly complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The coupling structure is divided into distinct functional components: the locking ball for engagement, the spring for maintaining force, the pulling ring for operation, and the locking groove for positioning. This segmentation allows each component to perform its specific function simply, resulting in an overall secure connection without complicated assembly procedures.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The locking function is extracted as a separate mechanism involving the locking ball and locking groove, independent from the main coupling body. This extraction allows the locking feature to be implemented through a simple insert-and-lock action, reducing overall assembly complexity while maintaining secure connection.

Inventive Principle:
Principle #2Taking out (Extraction)

3Stability of the object's composition

If screw-based connection is used, then the assembly is stable, but repeated coupling and separation becomes difficult to achieve quickly

Engineering Contradiction:
Improveassembly stabilityVSAvoidcoupling speed
Core Design Contradiction:
Stability of the object's compositionVSProductivity

Solution Approach 1:

The dynamic locking mechanism with movable locking ball and spring-loaded retention enables rapid transition between locked and unlocked states. The spring pre-loads the locking ball against the groove for stable connection, while the pulling ring provides mechanical advantage for quick release. This dynamic system achieves both stability and high coupling productivity for repeated operations.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The coupling structure is designed for periodic coupling and decoupling operations. The locking mechanism maintains stable connection during the operational phase, then allows rapid release when needed. This periodic functionality, enabled by the simple lock-release mechanism, significantly improves productivity compared to permanent screw-based connections.

Inventive Principle:
Principle #19Periodic action

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

Enables stable coupling and quick separation of objects by allowing the fastening portion to be securely connected or disconnected from a second object through rotational movement of the head, simplifying the assembly and disassembly process while ensuring stability and ease of use.

Implementation Method 1

an elastic element is further included. One end of the elastic element is abutted against the head, and the other end is abutted against the body.

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS11098839B2Turning interlocking coupling structure
Publication Date: 2021.08.24 FIVETECH TECH INC
  • US11098839B2 patent drawing
  • US11098839B2 patent drawing
  • US11098839B2 patent drawing

AI summary

A fastener structure includes a body portion, a control portion and a fastening portion. The control portion is movably fitted to the body portion. The control portion has a head portion and a limiting portion. The fastening portion is movably disposed at the body portion. The limiting portion is adapted to limit the fastening portion. Therefore, the body portion is disposed at the second object, and the control portion causes the fastening portion to be coupled to or separated from the first object, so as to couple together and separate at least two objects repeatedly and rapidly.