Electromagnetic Valve Manual Operation Safety Slide Mechanism
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Solution Overview
Problem
The existing safety devices for slide type manual operation elements in electromagnetic valves require a wide operation space and are cumbersome to operate, making it difficult to check the operating state of the manual operation element.
Innovation Solution
A safety device with a slide member that is horizontally slidable and movable between lock and non-lock positions, allowing the manual operation element to be locked and unlocked without the need for wide turning, and featuring a positioning mechanism and elastic retaining mechanism for clear operation and easy identification of positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cover connected by a shaft is used to prevent erroneous operation, then safety is improved, but the operation space required increases and operability deteriorates
Solution Approach 1:
Instead of rotating the cover about a shaft as in conventional designs, the present invention inverts the operation method by making the cover slidable horizontally. The cover moves from a retracted position to a covering position along the sliding direction of the manual operation element, eliminating the need for wide operation space while maintaining safety functionality.
Solution Approach 2:
The invention changes the dimension of motion from rotational (about a shaft) to linear sliding (horizontal direction). This dimensional change allows the cover to move in the same direction as the manual operation element, reducing the required operation space and improving operability while maintaining the safety function.
2Reliability
If a cover connected by a shaft is used to prevent erroneous operation, then safety is improved, but the complexity of operation increases
Solution Approach 1:
The invention inverts the conventional rotational operation into a simple horizontal sliding motion. The cover is guided to slide along the same direction as the manual operation element, making the operation more intuitive and less complex than rotating a cover about a shaft.
3Reliability
If a cover is used to prevent erroneous operation, then safety is improved, but the ability to check operating state deteriorates
Solution Approach 1:
The cover transitions from a static closed position to a dynamically open position, allowing the operating state of the manual operation element to be visible when the cover is opened. This dynamic positioning enables both safety protection when closed and state verification when opened.
Solution Approach 2:
The cover's position (closed or open) provides visual feedback about the operating state. When the cover is opened, the operating state of the manual operation element becomes visible, allowing users to verify the state before or after 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
Enables easier operation and clear visibility of the operating state of the manual operation element, reducing the risk of erroneous operation and eliminating the need for a wide operation space, thereby enhancing operability and safety.
Implementation Method 1
an electromagnetic operating section configured to switch the valve member by an electromagnetic force
Data Source
AI summary
On an outer surface of an electromagnetic valve body, a manual operation element is provided slidably horizontally, and a slide member is provided slidably in a direction orthogonal to a sliding direction of the manual operation element. The slide member is movable to a lock position and a non-lock position. At the lock position, the slide member is retained by the manual operation element to lock the manual operation element at a non-switch position. At the non-lock position, the slide member unlocks the manual operation element to allow the manual operation element to move toward a switch position.