Fluid Transfer Plug With Metal Reinforced Collar
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Solution Overview
Problem
Existing fluid-transfer coupling devices face issues with plug stability and sealing characteristics, especially when handling high-flow fluids, due to wear and moment forces from attached flanges, leading to potential damage and compromised sealing.
Innovation Solution
A plug for fluid-transfer coupling devices is designed with a metal-reinforced outer circumference, incorporating an inner spacer and metal collar with a flange, which enhances rigidity and supports the plug, while a resinous inner spacer with chemical resistance and a seal part between components prevent fluid leakage and facilitate easy assembly and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the plug is made entirely of resin, then chemical resistance is improved, but rigidity and resistance to moment forces deteriorate
Solution Approach 1:
The plug combines resin material for chemical resistance with a metal reinforcement ring for rigidity. The metal ring is embedded in the resin body to form a composite structure that leverages the advantages of both materials: resin provides chemical inertness while metal provides structural strength against moment forces from attached flanges.
2Productivity
If the plug is inserted into the socket repeatedly, then fluid transfer functionality is maintained, but wear at the engaging portion increases
Solution Approach 1:
The engaging portion of the plug is designed with a hardened surface layer or different material composition that increases wear resistance. This parameter change in surface hardness allows the plug to withstand repeated insertion and extraction cycles while maintaining sealing characteristics and preventing premature wear.
3Ease of manufacture
If a flange is attached to the plug for conduit connection, then ease of installation is improved, but moment forces cause plug damage
Solution Approach 1:
The metal reinforcement ring embedded in the resin plug body provides the necessary structural strength to resist moment forces generated by attached flanges. The composite structure allows the plug to support flange connections while preventing deformation or damage to the plug body under operational loads.
4Strength
If the outer circumference of the plug is reinforced with metal, then rigidity is improved, but manufacturing complexity increases
Solution Approach 1:
The plug is divided into distinct functional segments: a resin body for chemical resistance and a separate metal reinforcement ring for structural strength. This segmentation allows each component to be manufactured independently using optimized processes, then assembled together, reducing overall manufacturing complexity while achieving the desired performance characteristics.
Data Source
AI summary
In a fluid-transfer coupling device (5) that connects a plug (70) and a socket (10) to each other to communicate respective flow paths in the socket and the plug with each other, the plug includes, at least, an inner spacer (74) having an inner passage (78) formed to allow a passage of fluid, a plug collar (73) covering the outer circumferential surface of the inner spacer and a flange (75) formed on a proximal end of the plug to connect the plug to a conduit. The plug collar and the flange are made of metal. Consequently, even if the flow rate of the fluid is large, the plug can be firmly supported in the device. The inner spacer is made of a resinous material. In this connection, at least one portion of an outer circumferential portion of the plug may be formed of metal.