Internal Check Valve Closure With Fastener-Free Leak Sealing
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Solution Overview
Problem
Existing check valves require screws or bolts to secure the closure mechanism, which can create leakage points and are not suitable for hazardous fluids or critical environments.
Innovation Solution
A closure mechanism for a check valve that is fixed within a flow passage using biased fixation members, such as pins, engaged in blind depressions on the valve body without external fasteners, ensuring a secure and leak-proof installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws or bolts are used to secure the closure mechanism, then the closure mechanism is firmly fixed in the valve body, but leakage points are created and safety is reduced for hazardous fluids
Solution Approach 1:
The invention extracts and eliminates the screws or bolts from the closure mechanism assembly. The closure mechanism is designed to be self-contained with integrated sealing surfaces that engage directly with the valve body without requiring external fasteners, thereby removing the source of leakage points while maintaining secure fixation
Solution Approach 2:
The invention merges the closure mechanism body with integrated sealing surfaces and fixation features into a single unified component. This consolidation eliminates the need for separate fastening elements and creates a leak-proof interface between the closure mechanism and valve body
2Reliability
If screws or bolts are used to secure the closure mechanism, then the closure mechanism is firmly fixed, but the installation process becomes more complex and time-consuming
Solution Approach 1:
The invention removes the fastening system (screws, bolts, and associated threading) from the installation process. The closure mechanism incorporates direct engagement features that allow it to be securely fixed to the valve body through simple insertion and engagement without requiring additional fastening components or complex assembly steps
Solution Approach 2:
The closure mechanism is pre-configured with integrated sealing surfaces and fixation features during manufacturing. This preliminary preparation allows the component to be installed in a single operation without requiring on-site assembly of fasteners or complex alignment procedures, thereby simplifying the installation process while ensuring secure fixation
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
Eliminates leakage points, enhances safety for hazardous fluids, and simplifies installation by eliminating the need for additional securing structures, making it suitable for critical environments.
Implementation Method 1
at least one biasing member configured to urge the first-biased-fixation member and the second-biased-fixation member outwardly to engage a blind depression disposed on the flow passage of the valve body
Data Source
AI summary
A closure mechanism for a check valve comprises a closure-mechanism body oriented transversely within the valve's flow passage. The mechanism includes first and second plate members supporting seal members for engaging the flow passage. These plate members are movably attached to the closure-mechanism body to move together or apart based on the direction of fluid flow in the valve. Additionally, first and second biased-fixation members are movably positioned within the closure-mechanism body, along with biasing members that urge the first and second biased-fixation members to engage a blind depression in the valve body. This engagement secures the closure mechanism within the flow passage without requiring any additional securing structures.