Valve Sealing Member Locking for Negative Pressure Verification
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Solution Overview
Problem
Current valve systems lack a mechanism to verify the existence of negative or vacuum pressure before unlocking, leading to premature sealing member activation and potential air leaks.
Innovation Solution
An apparatus with a locking mechanism housing and a locking diaphragm that uses pressure differences to lock or unlock the sealing member, ensuring that negative pressure is present before allowing the sealing member to lift.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking mechanism is added to verify negative pressure before unlocking, then the reliability of preventing air leaks is improved, but the device complexity increases
Solution Approach 1:
The patent uses a diaphragm-based pneumatic mechanism to detect negative pressure. The diaphragm responds to pressure differential between ambient environment and piping system, mechanically triggering the locking/unlocking action without electronic sensors or complex control systems.
Solution Approach 2:
The locking mechanism is self-actuating based on pressure conditions. The diaphragm automatically moves in response to negative pressure, which directly actuates the locking component to seal the valve opening, eliminating the need for external control systems or additional verification steps.
2Ease of operation
If the sealing member is designed to activate prematurely without pressure verification, then the ease of operation is improved, but the harmful effects of air leaks increase
Solution Approach 1:
The locking mechanism applies preliminary anti-action by maintaining the sealing member in a locked position before negative pressure is confirmed. This prevents premature activation that would cause air leaks, while still allowing easy operation once the pressure condition is met.
Solution Approach 2:
The diaphragm serves as an intermediary between the pressure environment and the sealing member. It translates pressure differential into mechanical motion that controls the locking mechanism, ensuring the sealing member only activates when appropriate pressure conditions exist.
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 solution effectively prevents premature activation of the sealing member, ensuring that negative pressure is established before communication between the ambient environment and the piping system occurs, thereby preventing air leaks.
Implementation Method 1
uses pressure differences to lock or unlock the sealing member, ensuring that negative pressure is present before allowing the sealing member to lift
Data Source
AI summary
An apparatus for locking a sealing member of a valve in a piping system or an enclosed system comprises: (a) a locking mechanism housing having a upper end, a lower end opposed to the upper end, and a body between the upper end and the lower end; (b) at least a locking mechanism opening formed on the body; (c) at least a locking mechanism disposed in the locking mechanism opening; (d) a valve housing bleeder opening, wherein the valve further comprises a valve housing and a sealing member; wherein the locking mechanism housing, the at least a locking mechanism opening, at least a locking mechanism, and the sealing member is disposed inside the valve housing; wherein a first pressure exists in the upper end of the locking mechanism housing; and wherein a second pressure exists in the lower end of the locking mechanism housing.