Password Rebound Leaf Mechanism for Repeatable Combination Locks
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Solution Overview
Problem
Current combination locks have limited password combinations due to non-repeated password settings, making them easier to decipher and limiting their application.
Innovation Solution
A metal mechanical password lock cylinder with password rebound leaves, a label panel, a fastener locking plate, a positioning plate, a fastener reset plate, an axis panel, and a control plate, allowing for repeated password settings through positioning blocks on the rebound leaves, increasing the number of combinations and enhancing safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If password keys can only be used for setting non-repeated passwords, then the lock structure is simple, but the number of password combinations is limited and deciphering difficulty is low
Solution Approach 1:
The patent introduces a dynamic positioning block mechanism on the rebound leaf that can be moved between different positions. This allows the same physical leaf to represent different password digits at different times, enabling repeated password settings without requiring multiple static leaves. The dynamic positioning capability increases the number of possible combinations while maintaining a relatively simple overall structure.
Solution Approach 2:
The patent divides the rebound leaf into functional segments: the leaf body, the positioning block, and the groove structure. The positioning block can be independently positioned within the groove to represent different digits. This segmentation allows a single leaf to serve multiple password setting functions, increasing combinatorial possibilities without proportionally increasing the number of components.
2Reliability
If multiple password rebound leaves are added to increase combinations, then the number of password combinations increases, but the device complexity increases
Solution Approach 1:
The patent makes each rebound leaf universal by adding positioning blocks that can represent multiple different digits. Instead of having separate leaves for each digit position, a single leaf with positioning blocks can serve multiple functions. This multi-functionality approach increases the effective number of combinations without linearly increasing the number of physical components.
Solution Approach 2:
The positioning block is nested within the groove structure of the rebound leaf. The positioning block can be moved along the groove to different positions, effectively nesting multiple functional states within a single physical component. This nested arrangement allows multiple password settings to be encoded in a compact space without requiring separate external components for each function.
Data Source
AI summary
An environment friendly metal mechanical password lock cylinder capable of setting repeatedly password keys comprises password rebound leaves, a label panel, a fastener locking plate, a positioning plate, a fastener reset plate, an axis panel and a control plate. The label panel is fixedly connected with the positioning plate; the fastener locking plate is disposed between the label panel and the positioning plate; the fastener reset plate is slideably disposed on the positioning plate; the axis panel is matched and connected with the label panel; the control plate is slideably disposed on the axis panel; the password rebound leaf runs through the label panel and the positioning plate in sequence and corresponds to the control plate; the number of the password rebound leaves is set to be several; and at least one password rebound leaf in the plurality of password rebound leaves is provided with positioning blocks matched with the control plate.