Seal Ring With Projection Section For Plug Cap
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Solution Overview
Problem
Conventional seal rings for plug caps used in chemical tanks are cumbersome to select for different chemicals and can damage the plug's seal surface during operation, leading to leakage risks.
Innovation Solution
A seal ring design featuring an edge seal section, a surface seal section, and a projection section that engages with the plug cap's ring engagement section, providing increased friction resistance to the plug tube while minimizing contact with the plug cap, thus preventing damage and ensuring effective sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an O-ring seal ring is used in the plug cap to prevent leakage, then sealing effectiveness is improved, but the plug cap must be tightly fastened to the plug which causes harsh slide-contact and damages the plug's seal surface
Solution Approach 1:
The patent introduces a seal ring as an intermediary element between the plug cap and plug. The seal ring is fitted into a groove on the plug cap and makes sealing contact with the plug's outer peripheral surface, mediating the sealing function while preventing direct harsh contact between the plug cap and plug seal surface during tightening operations
Solution Approach 2:
The sealing function is segmented into distinct components: the seal ring is separated from the plug cap structure and fitted into a dedicated groove. This segmentation allows the seal ring to perform the sealing function independently while the plug cap provides structural support and engagement, reducing the mechanical stress transmitted to the plug seal surface
2Adaptability or versatility
If different types of O-rings are selected for different chemical liquids, then compatibility with various chemicals is improved, but the complexity of selection and material matching increases
Solution Approach 1:
The seal ring is designed with universal applicability through standardized dimensions and material properties that can handle multiple chemical types. The groove structure and seal ring configuration allow the same basic design to be used across different chemical storage applications, reducing the need for specialized selection while maintaining chemical compatibility through appropriate material choice
Data Source
AI summary
The object is to provide a seal ring for a plug, which, when used in a plug cap, can be used regardless of kind of chemical liquid and has no possibility of damaging a seal surface of the plug in tightening the plug cap. The seal ring is placed in the plug cap installed on the plug having a liquid path and/or a gas path, and the seal ring achieves liquid sealing and/or gas sealing of the plug. The seal ring (1) has on its upper surface an edge seal section (17), on its inner surface a surface seal section (18), and on its outer surface a projection section (19) engaging with a ring engagement section (16a) formed on the inner surface of the plug cap.