Containment Port Ring Structure for Flexible Airtight Assembly
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Solution Overview
Problem
Existing containment apparatuses face challenges in forming ports of varying sizes at any position, particularly on-site, due to limitations in airtightness and ease of assembly, with previous solutions struggling to maintain reliability and high airtightness across different synthetic resin sheet thicknesses.
Innovation Solution
A port structure for containment apparatuses featuring a transparent synthetic resin sheet with a port formation hole, inner and outer ring members, and a fastening mechanism using screws and O-rings, allowing for easy assembly and disassembly, ensuring high airtightness and adaptability to different sheet thicknesses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cylindrical members are tightly fitted into each other to form a port in a transparent soft synthetic resin sheet, then a port of any size can be formed at any position, but the structure becomes difficult to assemble and disassemble, and airtightness cannot be maintained across different sheet thicknesses
Solution Approach 1:
The port structure is divided into separate components: a first cylindrical member with an L-shaped cross section that fits into the resin sheet, and a second cylindrical member that externally fits the first member. This segmentation allows the port to be assembled and disassembled by simply connecting or separating these cylindrical members, eliminating the difficulty of working with tightly fitted single-piece structures while maintaining the ability to form ports of any size at any position.
2Reliability
If cylindrical members are tightly fitted to maintain airtightness, then high airtightness can be achieved, but the structure cannot accommodate varying synthetic resin sheet thicknesses
Solution Approach 1:
The port structure incorporates an L-shaped cross-sectional portion in the first cylindrical member that can flexibly adapt to different resin sheet thicknesses. The L-shaped geometry allows the port to maintain its sealing function whether the resin sheet is thin or thick, as the structure can adjust to accommodate the varying thickness while preserving airtightness through the complementary fitting of the cylindrical members.
Data Source
AI summary
A port structure of a containment apparatus is capable of providing a highly reliable port by means of a structure with which a port can be formed in any size at any position and high airtightness thereof can be maintained. The port structure has: a port formation hole that is formed in a transparent synthetic resin sheet defining at least a part of a chamber; an inner ring member disposed on the inner surface side of the port formation hole; an outer ring member disposed on the outer surface side of the port formation hole; and a fastening member that joins the inner ring member and the outer ring member to each other while having a rim portion of the port formation hole held therebetween.