Electrical Enclosure Door Locking Mechanism Simplification
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Solution Overview
Problem
Existing devices for opening/closing electrical cabinet doors require additional parts and make it difficult to access and replace the actuating element, complicating the locking mechanism.
Innovation Solution
A device where the movable locking/unlocking member serves both to lock the handle and hold the actuating element in position, using a spring to recall it to the locking position and featuring a hook for locking, allowing easy replacement of the actuating element by using a key-operable part to push the locking member against the spring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the actuating element is held in position by a separate plate fixed under the device, then the actuating element is securely positioned, but the device requires additional parts and the actuating element becomes difficult to access for replacement
Solution Approach 1:
The patent combines the positioning function with the locking function by making the locking/unlocking member also serve as the positioning element for the actuating element. The locking/unlocking member has a positioning face that directly holds the actuating element in place, eliminating the need for a separate plate and reducing the number of parts while maintaining secure positioning.
Solution Approach 2:
The locking/unlocking member is given multiple functions: it locks/unlocks the handle, positions the actuating element, and provides a mounting surface. This multi-functional design eliminates the need for separate components and simplifies the overall device structure.
2Reliability
If the actuating element is held in position by a separate plate fixed under the device, then the actuating element is securely positioned, but the actuating element becomes difficult to access when the lock needs to be replaced
Solution Approach 1:
By merging the positioning function into the locking/unlocking member itself, the actuating element becomes accessible from the outside through the key hole, allowing easy removal and replacement without disassembling additional components.
Solution Approach 2:
The actuating element can be easily extracted from the device by removing it through the key hole after depressing the locking/unlocking member, enabling simple maintenance and replacement operations.
3Ease of operation
If a spring is used to recall the locking/unlocking member to the locking position, then the locking mechanism is automatically reset, but additional components are required
Solution Approach 1:
The spring-loaded locking/unlocking member automatically resets to the locking position after the key is removed, providing self-service functionality without requiring additional actuating mechanisms or complex control systems.
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 easy replacement of the lock mechanism while maintaining the actuating element's functionality, simplifying the locking process and improving accessibility.
Implementation Method 1
the movable locking/unlocking member is mounted on a spring recalling it to its handle-locking position
Data Source
Figure 1
Figure 2A~2B
Figure 3A~3B
AI summary
The device (1) has a body (10) on which a mobile handle (11) is mounted, where the handle controls an opening/closing mechanism of a door. A mobile handle locking/unlocking unit is inserted in the body and displaced between a locking position of the handle and an unlocking position of the handle. A mobile activating element (15) forming a detachable cylinder is inserted in the body. The activating element displaces the locking/unlocking unit to unlock the handle, where the activating element is retained in the body by the locking/unlocking unit.