Waterproof Solenoid Valve Cover With Pin Guide Return Motion
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Solution Overview
Problem
Existing waterproof solenoid valves face issues with the sliding performance of operation pins deteriorating due to friction between the cap and the operation pin, making it difficult for the cap and operation pin to return to the initial positions after a pressing operation.
Innovation Solution
A waterproof solenoid valve design featuring a cap with flexibility and a pin guide that supports operation pins, allowing them to be freely displaced, with one end in contact with the cap's pressing portion and the other with the manual button, minimizing sliding friction and ensuring smooth operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the operation pin is slidably inserted and held in a holding hole formed in the cap, then the operation pin can be stably disposed between the cap and the manual button, but the sliding performance of the operation pin is deteriorated by friction between the operation pin and the cap
Solution Approach 1:
A pin guide is introduced as an intermediary component between the cap and the operation pin. The pin guide provides a guide hole through which the operation pin passes, separating the stabilizing function (provided by the pin guide's structure) from the sliding function (provided by the guide hole). This intermediary structure eliminates direct friction between the operation pin and the cap, allowing the pin to slide smoothly while maintaining stable disposition.
2Stability of the object's composition
If the operation pin is held in the cap, then the operation pin remains in position, but the friction between the operation pin and the cap makes it difficult for the cap and operation pin to return to initial positions
Solution Approach 1:
The pin guide serves as a mediator that provides both positional stability and smooth motion. The guide hole in the pin guide allows the operation pin to pass through with minimal friction, while the pin guide's structure within the cap maintains the operation pin in the correct position. This separates the stabilizing function from the friction-generating contact.
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 design stabilizes the operation pins' disposition and facilitates smooth operation by reducing friction, enabling reliable and efficient return to initial positions.
Implementation Method 1
the cap includes a flexible pressing portion that is elastically deformed at a pressing operation
Data Source
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AI summary
[Object] To allow the manual button of a solenoid valve main body to be reliably operated via an operation unit of a waterproof cover. [Solution] A waterproof cover 4 includes an operation unit 52 for pressing a manual button 47 of a solenoid valve main body 3. The operation unit 52 includes a flexible cap 54, a pin guide 55 interposed between the cap 54 and the solenoid valve main body 3, and an operation pin 57 that is inserted in guide hole 56 of the pin guide 55 so as to be displaced freely. The cap 54 includes a flexible pressing portion 64 for a pressing operation. One end of the operation pin 57 is in contact with or close to the pressing portion 64, and the other end of the operation pin 57 is in contact with the manual button 47.