Auto-Reset Combination Lock Gear Mechanism
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Solution Overview
Problem
Conventional combination locks in public places require users to manually reset the dials after setting a password, which is inconvenient and risks revealing the password, increasing the risk of theft.
Innovation Solution
A lock structure with an auto-reset function that includes an activation device, a combination lock, and a setting device, where the dials automatically return to a predetermined position after opening or closing, eliminating the need for manual resetting by using a shaft, first gears with missing teeth, and a setting shaft connected to the activation device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual resetting of dials is required after setting password, then the lock structure is simpler, but the operation convenience deteriorates and security risk increases
Solution Approach 1:
The patent implements preliminary action by designing the auto-reset function that automatically returns dials to their initial position after the lock is opened. This eliminates the need for manual resetting by the user, thereby improving operation convenience and security without requiring complex additional mechanisms beyond the basic gear and shaft structure.
Solution Approach 2:
The lock structure performs self-service through the auto-reset mechanism where the system automatically resets the dials to their predetermined position after opening. The gear and shaft mechanism autonomously executes the resetting function without requiring external user intervention, thus enhancing both convenience and security while maintaining structural simplicity.
2Productivity
If dials are manually reset after opening, then the structure remains simple, but time consumption increases and security is compromised
Solution Approach 1:
The auto-reset function is pre-configured in the lock structure through the gear and shaft mechanism. When the lock is opened, the dials automatically return to their initial position without requiring user action, thereby eliminating time consumption and improving operation speed while keeping the structural complexity minimal.
Solution Approach 2:
The system autonomously performs the resetting operation through its internal gear and shaft mechanism, eliminating the need for external user intervention. This self-service capability increases productivity by reducing operation time while maintaining a simple lock structure without additional complex components.
3Reliability
If manual resetting is required, then the lock mechanism is simpler, but the risk of password exposure increases
Solution Approach 1:
The patent implements preliminary action by pre-configuring the auto-reset function that automatically returns dials to their initial position after opening. This eliminates the security vulnerability of manual resetting where users might inadvertently reveal the password, thereby enhancing security reliability while maintaining a simple gear and shaft structure.
Solution Approach 2:
The lock structure autonomously executes the resetting function through its internal mechanism, eliminating the need for user intervention that could lead to password exposure. This self-service approach improves security reliability by ensuring consistent, controlled resetting behavior without adding complex external systems.
Data Source
AI summary
A lock structure including an activation device, a combination lock, and a setting device is provided. The combination lock has a plurality of dials, a shaft passing through the dials, and a plurality of first gears disposed on one side of each dial. Each first gear further includes a missing tooth. One end of the shaft is connected to the activation device. The setting device has a plurality of second gears corresponding to the first gears and a setting shaft, wherein one end of the setting shaft passes through the second gears and the other end is connected to the activation device. When the activation device is activated, the second gears are driven to rotate the first gears, so that when each second gear runs free with the missing tooth of each first gear, the dials are in a predetermined position. That is, by means of the activation device and the setting device, the dials of the combination lock can automatically return to the predetermined position after opening or closing the lock.