Combination Lock with Automatic Password Resetting via Magnetic Mechanism
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Solution Overview
Problem
Conventional combination locks are not suitable for high-traffic areas as they require manual password scrambling and resetting, making them inconvenient and potentially insecure, especially since passwords are often unchanged.
Innovation Solution
A combination lock with automatic password resetting and dial position resetting capabilities, utilizing a rotatable knob, dial assembly, and magnetic mechanisms to provide temporary passwords and prevent password exposure, suitable for frequent use in high-traffic environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual password scrambling is required after each use, then password security is improved, but user convenience deteriorates
Solution Approach 1:
The lock automatically scrambles the password after each use through the resetting magnet attracting dial magnets to rotate dials to initial positions, eliminating the need for manual intervention. The system serves itself by automatically performing the security function that previously required user action.
Solution Approach 2:
The password is automatically reset to its initial state immediately after unlocking, preparing the lock for the next use without requiring user intervention. This preliminary action ensures security is maintained before the next user interaction.
2Ease of operation
If passwords remain unchanged between resets, then ease of operation is improved, but security deteriorates
Solution Approach 1:
The password automatically changes after each use through periodic resetting actions. The resetting magnet periodically attracts the dial magnets to rotate dials back to initial positions, creating a repeating cycle of password change that maintains security while allowing easy operation.
Solution Approach 2:
The system provides feedback by automatically detecting when unlocking occurs and triggering the password reset sequence. This closed-loop feedback ensures the password changes appropriately in response to usage, maintaining security without requiring user input.
3Reliability
If automatic password resetting is implemented, then security is improved, but device complexity increases
Solution Approach 1:
The patent replaces complex electronic password management systems with a mechanical-magnetic resetting mechanism. The resetting magnet and dial magnets create a purely mechanical rotation system that achieves automatic password resetting without electronics, reducing overall system complexity while maintaining security.
Solution Approach 2:
The dial assembly serves multiple functions: it displays the password, allows user input, and automatically resets through magnetic attraction. This multi-functionality reduces the need for separate components, simplifying the overall device while achieving automatic security resetting.
4Ease of operation
If dials can rotate freely during password setting, then ease of operation is improved, but measurement precision deteriorates
Solution Approach 1:
The system dynamically changes the rotational freedom of dials based on operational state. During password setting, dials are free to rotate for ease of adjustment. During locking, the positioning member engages with dial positioning grooves to fix precise positions, providing both flexibility and precision as needed.
Solution Approach 2:
The rotational constraint parameter of dials is changed based on operational phase. The protection frame and positioning member adjust the degree of freedom of dials, allowing free rotation during setup and fixing precise positions during locking, thereby adapting to different operational requirements.
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 ensures high safety and convenience by automatically resetting passwords and dial positions, reducing the risk of password exposure and simplifying management in areas with large population flow.
Implementation Method 1
The position resetting mechanism further includes dial magnets and a resetting magnet. The dial magnets are disposed corresponding to the dials. The resetting magnet is configured to attract the dial magnets for resetting the dials.
Implementation Method 2
The position resetting mechanism further includes an acceleration magnet. The acceleration magnet is mounted to the base and is arranged in parallel with the resetting magnet.
Data Source
AI summary
Disclosed is a combination lock, comprising a rotatable knob capable of relative rotation, a panel, a bolt, and a dial assembly. The dial assembly comprises a base having a movement chamber, a dial shaft, multiple sets of bushings and dials, a position resetting mechanism, a positioning member, and a protection frame The rotatable knob can be rotated relative to the panel to a first position, second position, third position, or fourth position, so as to achieve locking, automatic password resetting, automatic dial position resetting, and manual password setting. The combination lock uses one-time temporary passwords, thereby achieving superior security performance.