Anti-break Lock Stop Pin Mechanism for Unauthorized Access Prevention
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Solution Overview
Problem
Conventional locks can be unlocked by unauthorized individuals if the core is removed, and they often require replacement of the entire case, leading to high maintenance costs and failure to meet durability and combination requirements due to limited bead sets.
Innovation Solution
An anti-break lock design featuring a case with radially extending rings, engaging blocks, and a cam system that prevents rotation when the core is removed, utilizing resilient members and stop pins to secure the lock and allow only authorized unlocking from the undamaged side, while allowing multiple bead sets and modular assembly to meet international standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the case is broken and the core is taken out, then the lock can be unlocked, but the security of the lock is compromised
Solution Approach 1:
The invention introduces a stop pin as an intermediary component between the core and the cam. When the core is removed, the stop pin prevents the cam from rotating, thereby blocking unauthorized unlocking. This mediator component ensures that even if the core is taken out, the lock remains secure.
Solution Approach 2:
The invention applies preliminary anti-action by pre-positioning the stop pin to counteract potential unauthorized actions. The stop pin is designed to automatically engage and prevent cam rotation before any unauthorized unlocking attempt can occur, neutralizing the threat in advance.
2Reliability
If the whole case is replaced when the core needs replacement, then the lock functionality is maintained, but the maintenance cost increases
Solution Approach 1:
The invention segments the lock into independent replaceable components: the case, the core, and the engaging block with cam. This allows the core to be replaced independently without replacing the entire case, significantly reducing maintenance costs while maintaining lock functionality.
Solution Approach 2:
The engaging block is designed as a universal component that can accommodate different cores. The cam mechanism remains the same while only the core needs replacement, making the system multi-functional and reducing the need for multiple specialized parts.
3Length of moving object
If the gap is reduced to shorten the lock, then the lock length is reduced, but the number of bead sets decreases
Solution Approach 1:
The invention resolves the space constraint by changing the dimensional arrangement of components. The cam is positioned in a space between two rings that extends radially from the body, utilizing three-dimensional space efficiently. This allows sufficient room for multiple bead sets without increasing the overall lock length.
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 lock remains secure even when damaged, preventing unauthorized unlocking and allowing for multiple combination configurations, reducing maintenance costs and meeting international standards for durability and security.
Implementation Method 1
a resilient member and a stop pin are received in the at least one passage. The resilient member biases the stop pin
Data Source
AI summary
An anti-break lock includes a body and two rods respectively extend from two ends of the body. Two rings extend radially from the body. The body has a passage which communicates with one of the rings and the ring is engaged with an engaging block. The engaging block has a recess in which a pad is received. The passage has a resilient member and a stop pin received therein and the stop pin has a first shoulder and a second shoulder formed in two ends thereof. A contact portion extends from the second shoulder. The body has a room which communicates with the passage. A resilient piece and an engaging member are received in the room. When the lock is damaged, the contact portion is inserted into the recess and stopped by the engaging member so that it cannot move back to its initial position. The lock cannot be unlocked.