Lock Core Cone-Shaped Bead Anti-Picking Mechanism
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Solution Overview
Problem
Conventional lock core structures are vulnerable to malicious striking and picking, allowing unauthorized access through the use of universal keys or L-shaped members, as they cannot withstand impact and are easily manipulated to rotate the core.
Innovation Solution
The lock core structure incorporates side bead units with cone-shaped locking beads and resilient members, where the cone-shaped locking bead has a smaller base diameter than the holes, securing the core when offset and preventing rotation, and side bead units further enhance the locking mechanism to prevent unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional lock core structure is used, then ease of operation is maintained, but security against malicious striking and picking deteriorates
Solution Approach 1:
The lock core is divided into multiple independent bead units (first bead unit, second bead unit, third bead unit) with different configurations. Each bead unit operates independently, and the cone-shaped locking bead in the second bead unit provides additional security against malicious striking and picking while maintaining the overall ease of operation through the coordinated action of all bead units.
Solution Approach 2:
The second bead unit is configured with a cone-shaped locking bead that has different geometric properties compared to the cylindrical locking beads in other units. This local differentiation creates a specialized mechanism that resists malicious striking and picking attempts while the other bead units maintain standard operation, thus improving security without compromising overall ease of operation.
2Strength
If conventional lock core structure is used, then manufacturing simplicity is maintained, but resistance to impact deteriorates
Solution Approach 1:
The lock core is segmented into multiple bead units, with the second bead unit containing a cone-shaped locking bead that provides enhanced impact resistance. This segmentation allows the impact-resistant feature to be localized without requiring complete redesign of the entire lock core, thus maintaining manufacturing simplicity while improving strength.
Solution Approach 2:
The cone-shaped locking bead in the second bead unit provides localized impact resistance at a specific position within the lock core. This local quality enhancement allows the lock to resist malicious striking and picking at critical points while maintaining ease of manufacture by only modifying one specific bead unit rather than the entire structure.
3Reliability
If cone-shaped locking bead is added, then security against picking is improved, but device complexity increases
Solution Approach 1:
The lock core is divided into multiple bead units, and the cone-shaped locking bead is incorporated into only one of them (the second bead unit). This segmentation approach allows the enhanced security feature to be added to a specific unit without requiring complexity changes throughout the entire lock core, thus improving security against picking while limiting the increase in overall device complexity.
Solution Approach 2:
The cone-shaped locking bead is introduced as a local modification in the second bead unit, creating a specialized picking-resistant mechanism at a specific location. This local quality enhancement improves security against picking at the critical second bead unit while the other bead units maintain their original simpler configurations, thus limiting the overall complexity increase.
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 enhanced lock core structure effectively prevents unlocking by malicious striking or picking, maintaining security through the cone-shaped locking mechanism and side bead units, making it difficult for unauthorized individuals to access the lock.
Implementation Method 1
resilient members 50 and a cover 60 from the bottom to the top therein. The top beads 40 are biased by the resilient members 50 and toward into the bottom bead paths 201 such that the core cannot be rotated.
Implementation Method 2
The top locking bead of one of the bead units is a cone-shaped locking bead which is rested on the shoulder of the bottom hole so as to define a gap between the cone-shaped locking bead and the bottom locking bead.
Data Source
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AI summary
A high security lock core structure includes a case, a core, multiple side bead units and multiple bead units. The case includes side holes for receiving the side bead units. The core includes bottom holes which communicate with the top holes. The bead units are located in the top holes and the bottom holes. Each side bead unit includes a side bead and a first resilient member. Each bead unit includes a bottom bead, a top bead, a second resilient member and a cover. The top bead of one of the bead units is replaced by a cone-shaped locking bead which has a cone-shaped base and located at the interfaces of the top and bottom holes to make the core be locked. When the core is in unlocked status by malicious ways, the bottom holes are moved to the side holes to lock the core again.