Bar Gun O-Ring Retainer Layout for Valve Stem Sealing
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Solution Overview
Problem
Existing bar-gun apparatus suffer from leakage issues due to inadequate retention of O-rings, leading to reduced reliability and increased maintenance needs.
Innovation Solution
The use of O-ring retaining apparatuses, including plates, clips, and retainers, which are rigidly or semi-permanently attached to the bar gun handle, to securely hold O-rings in place during operation, preventing leakage and enhancing the service life of the bar gun.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional bar-gun apparatus are used without specialized O-ring retaining structures, then the device complexity is low, but leakage occurs and reliability deteriorates
Solution Approach 1:
The O-ring retaining apparatus divides the sealing function into separate components: the O-ring itself and the retaining structure with multiple retention features (grooves, clips, plates). This segmentation allows each component to be optimized independently for its specific function while working together to solve the leakage problem.
Solution Approach 2:
The retaining structure acts as an intermediary between the O-ring and the bar-gun apparatus, providing additional retention features that prevent O-ring displacement without requiring fundamental changes to the main apparatus design.
2Reliability
If O-ring retaining apparatus are added to prevent leakage, then reliability improves, but device complexity increases
Solution Approach 1:
The retaining features (grooves, clips, plates) are merged into a single integrated retaining structure that works together as a unified system to secure the O-ring, rather than using multiple separate components.
Solution Approach 2:
The retaining structure serves multiple functions simultaneously: it provides retention through grooves, additional securing through clips or plates, and guidance for proper O-ring installation, making it a multi-functional component that addresses various sealing requirements.
3Reliability
If multiple retention features are used to secure O-rings, then leakage is reduced, but manufacturing complexity increases
Solution Approach 1:
The manufacturing process is segmented into distinct steps: forming retention grooves in the apparatus, installing the O-ring, and then adding retention clips or plates. This segmentation allows each manufacturing step to be optimized independently.
Solution Approach 2:
The retention grooves are formed in the bar-gun apparatus during its initial manufacturing process, before the O-ring is installed. This preliminary action prepares the apparatus for subsequent O-ring installation and retention feature addition.
Data Source
AI summary
A system and method of using an O-ring retaining apparatus to maintain an O-ring in the same position relative to the position of the handle of a bar gun while permitting a valve stem in physical contact with the O-ring to slide past without the O-ring becoming dislodged.