Dual-Unlock Combination Lock With Independent Password Switch
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Solution Overview
Problem
Conventional combination locks do not allow for independent access by multiple administrators, as resetting the password by one administrator renders the lock inaccessible to others, and existing dual-lock systems with key-cylinders have low security performance.
Innovation Solution
A dual-unlock combination lock design featuring a password element with two alignment slots and a password switch pushbutton, allowing two independent password sets for unlocking, with one set accessible via a mobile terminal using an identification code, enhancing security and management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional combination lock uses a single password element, then the lock can be opened by one password, but if one administrator resets the password, other administrators cannot open the lock
Solution Approach 1:
The password element is segmented into two independent password input mechanisms: a combination wheel for the first password and a password switch pushbutton for the second password. This segmentation allows different administrators to use different passwords independently, resolving the contradiction between access flexibility and access reliability.
Solution Approach 2:
The password element is designed with multi-functionality to accept two different types of password inputs (combination wheel and pushbutton) that can both trigger the unlocking mechanism. This universal design enables multiple administrators to access the lock using their respective passwords, maintaining both flexibility and reliability.
2Adaptability or versatility
If a key-cylinder is added to enable multiple unlock functions, then access by multiple administrators is possible, but security performance decreases
Solution Approach 1:
The traditional key-cylinder mechanical system is replaced with a password-based mechanical system consisting of a combination wheel and password switch pushbutton. This substitution maintains multiple unlock functionalities while significantly improving security performance by eliminating the vulnerabilities associated with key-cylinders.
Solution Approach 2:
The password element acts as an intermediary mechanism between multiple administrators and the locking mechanism. Instead of using key-cylinders that compromise security, the password element mediates access control through secure password input methods, enabling multiple administrators to unlock the lock without sacrificing security.
3Adaptability or versatility
If a password switch pushbutton is added to enable a second password, then the structure becomes more complex, but dual-unlock capability is achieved
Solution Approach 1:
The combination wheel and password switch pushbutton are merged into a single integrated password element structure. Both components share common elements such as the bracket, elastic member, and alignment slot mechanism, reducing overall structural complexity while achieving dual-password capability.
Solution Approach 2:
The password element is designed as a multi-functional unit that handles both password input methods (combination wheel and pushbutton) through a unified structure. The shared components (bracket, elastic member, alignment slots) enable dual-password functionality without proportionally increasing structural complexity.
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
Enables independent access by multiple administrators using one password element, providing a broader scope of applicability and overcoming security limitations of conventional lock cylinders by allowing remote management and enhanced safety through dual-password functionality.
Implementation Method 1
the bracket has an elastic member installed at the bottom thereof, such that after the combination wheel inputs a correct password, and the elastic member props the bracket to release from the transmission element
Implementation Method 2
the elastic member comprises a lifting block and a support spring, and the lifting block props the bracket, and the support spring props the lifting block, and the lifting block has a limit portion for propping the transmission element, and after the combination wheel inputs a correct password, the support spring pushes the lifting block and the bracket to move upward
Data Source
AI summary
A dual-unlock combination lock provides a first set of correct password and a second set of correct password to be used independently. After a password switch pushbutton is operated to drive a bracket to a corresponding position, a corresponding correct password is input into a combination wheel, so that an elastic member props the bracket to release from a transmission element in order to unlock the combination lock. One password element can achieve the effect of unlocking the lock by using two sets of correct password independently to provide a broader scope of applicability. The first set of correct password with the setting and use similar to those of a common password is provided for ordinary users, and the second set of correct password is a fixed code provided for designated users to unlock the combination lock by scanning an identification code by a mobile terminal.