Double Locking Buckle With Single-Hand Release Mechanism
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Solution Overview
Problem
Conventional buckles are prone to unintentional separation due to external impacts, posing safety risks in secure applications, and require two hands to release the double locking mechanism, which is inconvenient.
Innovation Solution
A double locking buckle design featuring a plug member with lock arms and a socket member with a guide groove and locking rod, providing three-point coupling and allowing single-handed release by using a wing part and inclined surfaces for secure engagement and easy disengagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional buckle with lock arms is used, then the buckle can be easily assembled and disassembled, but the buckle may be unintentionally separated due to external impacts
Solution Approach 1:
The locking mechanism is divided into two independent locking systems: a first locking arm that engages with a first locking hole, and a second locking arm that engages with a second locking hole. This segmentation ensures that the buckle requires multiple points of failure rather than a single point, significantly improving reliability against unintentional separation while maintaining ease of operation through simple arm engagement
Solution Approach 2:
The buckle design incorporates pre-biased locking arms that automatically engage with locking holes upon assembly, creating a preliminary locked state that prevents unintentional separation. The spring-loaded mechanism ensures the locking arms are constantly pressed against the locking holes, counteracting external impacts before they can cause separation
2Reliability
If a double locking mechanism is added to prevent unintentional separation, then the reliability improves, but the device complexity increases
Solution Approach 1:
The first locking arm and second locking arm are integrated into a single plug member structure, sharing common mounting points and spring mechanisms. The socket member also integrates both locking holes and release mechanism components into a unified structure. This merging reduces the total number of separate components while maintaining the double locking functionality, thereby improving reliability without proportionally increasing device complexity
3Reliability
If a double locking mechanism with two locking holes is implemented, then the security against impact improves, but the ease of operation for release deteriorates
Solution Approach 1:
A single release button performs multiple functions: it simultaneously actuates both the first locking arm and the second locking arm through interconnected release holes and lever mechanisms. This multi-functionality allows the user to release both locks with a single action, maintaining ease of operation while preserving the security benefits of the double locking mechanism against impact
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 buckle effectively resists external impacts and allows for secure, single-handed release, enhancing safety and convenience in applications requiring secure fastening.
Implementation Method 1
the lock arms are inwardly bent, so that the lock arms may be unintentionally separated from each other
Implementation Method 2
a locking member 30 which is elastically biased upward to elastically operate up and down
Data Source
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AI summary
Disclosed is a double locking buckle. The double locking buckle includes a plug member (100) having a pair of lock arms (105) and a locking rod (110) provided between the lock arms and a socket member (200) having locking parts (215) in a chamber (205) with which the lock arms are locked. A locking unit (111) is provided at the front end of the locking rod (110), and the socket member is provided at the center thereof with a guide groove (210) coupled with the locking rod and a locking protrusion (212) coupled with the locking unit.