Gasket Mounting Structure With Annular Bulge for Easier Sealing
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Solution Overview
Problem
Conventional gasket-mounting structures require careful external force application to ensure tight contact between reverse-tapered faces of fluid devices and tapered faces of gaskets, making the mounting process cumbersome and potentially inefficient.
Innovation Solution
The introduction of an annular bulge on the gasket's slope, which is the earliest contact point with the fluid device's slope, facilitates easier and more secure sealing by ensuring the bulge is the initial point of contact, allowing for improved sealing pressure distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If parallel planes are pressed against each other to form a sealing area, then sealing is achieved, but careful mounting with external force application is required
Solution Approach 1:
The invention introduces a curved surface (arc-shaped contact area) instead of parallel planes. The gasket's contact surface is formed with a curved profile that matches an arc-shaped groove in the valve body, creating a curved contact area that naturally guides mounting and ensures sealing without requiring careful alignment or external forcing.
Solution Approach 2:
The curved contact area design allows the gasket to self-align and self-seal during mounting. The arc-shaped geometry automatically guides the gasket into proper position and creates sealing pressure through its own structure, eliminating the need for external forcing or careful manual alignment during installation.
2Reliability
If the entire reverse-tapered face receives pressure from the entire tapered face, then sealing area is formed, but mounting complexity increases
Solution Approach 1:
The invention concentrates the sealing function in a specific localized region - the arc-shaped contact area at the axial end of the gasket. Instead of relying on pressure distribution across entire parallel surfaces, the sealing action is localized to this curved contact zone, simplifying the overall mounting process while maintaining reliable sealing.
Data Source
AI summary
A structure allowing a gasket to be mounted on a fluid device is provided. The gasket includes an annular attaching portion that has a first slope at an axial end. The fluid device includes an annular attached portion with a second slope that contacts the first slope. The first slope at least partially includes a contact area that contacts the second slope to seal a gap between the first slope and the second slope. The contact area has an annular bulge protruding toward the second slope in contrast to other portions of the first slope so that the bulge is the earliest contact portion with the second slope when the contact area is brought into contact with the second slope.