Locking device and enclosure using the same
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Solution Overview
Problem
Existing locking devices for electronic enclosures do not effectively secure plug-in members, as they rely on screws that can be easily loosened or removed, compromising the enclosure's integrity and security.
Innovation Solution
A dual locking unit system comprising symmetric first and second locking units with driven screws and racks, where the driven screws rotate and screw into screw holes as the plug-in member moves, utilizing springs to ensure secure engagement and disengagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If screws are used to mount plug-in members to the enclosure, then the plug-in members can be easily installed and removed, but the enclosure's security and integrity are compromised as the screws can be easily loosened or removed
Solution Approach 1:
The locking device transitions from a static screw connection to a dynamic locking mechanism that automatically engages and disengages. The driven screw rotates and moves linearly to engage with the screw hole, transforming the operational state from easily removable to securely locked while maintaining controlled accessibility through the actuating mechanism.
Solution Approach 2:
The spring-loaded driven screw automatically engages with the screw hole when the plug-in member is inserted, providing self-locking functionality. The mechanism uses the insertion motion itself to trigger the locking action, eliminating the need for separate fastening operations while ensuring secure engagement.
2Reliability
If a locking mechanism is added to secure plug-in members, then security and reliability are improved, but the device complexity increases
Solution Approach 1:
The locking mechanism integrates multiple functions into a single compact assembly: the driven screw combines threading, spring loading, and locking engagement; the actuating mechanism integrates rotation and linear motion; and the entire system merges security locking with the basic mounting function, reducing overall system complexity despite enhanced functionality.
Solution Approach 2:
The driven screw serves multiple functions simultaneously: it acts as a fastener, a spring-loaded actuator, a locking element, and a position indicator. This multi-functionality reduces the need for separate components, thereby managing complexity while achieving reliable security.
3Reliability
If a mechanical locking mechanism is implemented, then tampering and accidental disengagement are resisted, but the ease of operation for legitimate access is reduced
Solution Approach 1:
The spring-loaded driven screw provides tactile feedback through its engagement and disengagement states, allowing users to sense when the plug-in member is properly locked or unlocked. This feedback mechanism enables intuitive operation without requiring complex controls or multiple steps for legitimate access.
Solution Approach 2:
The locking mechanism uses dynamic motion transformation where rotational input from the actuating mechanism converts to linear engagement of the driven screw. This dynamic conversion provides a clear, deliberate action for locking while maintaining simplicity for the user, balancing security with ease of legitimate operation.
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 dual locking unit system provides enhanced security and reliability by ensuring that the plug-in members are securely locked and unlocked through a mechanical mechanism that resists tampering and accidental disengagement.
Implementation Method 1
utilizing springs to ensure secure engagement and disengagement
Data Source
AI summary
A locking device includes a first side plate and a first driven screw. The first side plate includes a first moving track with a first driving member extending along the first moving track and a first driven screw includes a first threaded rod; and a first follower mounted to an end of the first threaded rod and coupling with the first driving member. When the first driven screw moves along the first moving track, the first follower is driven to rotate by the first driving member, thereby driving the first threaded rod to rotate along a locking direction or an unlocking direction. An enclosure is further disclosed.