Plastic Valve Flange Insert Structure Against Pipe Connection Twisting
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Solution Overview
Problem
Conventional plastic valves experience distortion when connected to pipes, leading to twisting and potential leaks, especially when flange members are formed at the ends, which compromises the integrity of the connection and the flow of gases or solutions.
Innovation Solution
Incorporating a metal member with protrusions into the flange member of the plastic valve, which is formed through insert molding, to reinforce the structure and minimize distortion forces, thereby preventing twisting and ensuring a secure connection without leaks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a plastic valve is connected to a pipe with a flange member, then the connection is formed, but distortion occurs in the direction opposed to the connection direction causing the pipe to twist
Solution Approach 1:
The patent applies composite materials by combining a metal distortion prevention member embedded within the plastic flange member. The metal member (such as steel or aluminum) provides high strength and rigidity to resist distortion forces, while the plastic material maintains sealing properties and corrosion resistance. This composite structure allows the flange member to withstand connection forces without twisting the pipe, thereby resolving the contradiction between connection integrity and structural stability.
2Ease of manufacture
If the flange member is made entirely of plastic, then manufacturing is simple, but distortion occurs during connection compromising connection integrity
Solution Approach 1:
The patent uses composite materials by embedding a metal distortion prevention member within the plastic flange member. The metal component (such as steel or aluminum) provides the necessary strength to prevent distortion during connection, while the plastic material maintains ease of manufacture through injection molding or insert molding processes. This composite approach preserves manufacturing simplicity while significantly improving connection integrity by preventing distortion.
Solution Approach 2:
The patent applies local quality by strategically placing a metal distortion prevention member only in specific regions of the flange member where distortion forces are most likely to occur. The metal member can be positioned in the connection direction or at critical stress points, providing localized reinforcement exactly where needed. This allows the majority of the flange member to remain plastic for ease of manufacture, while the localized metal reinforcement ensures connection integrity.
3Stability of the object's composition
If a metal member is added to the flange member to prevent distortion, then structural stability is improved, but device complexity increases
Solution Approach 1:
The patent applies merging by integrating the metal distortion prevention member directly into the flange member structure during the manufacturing process. The metal member is embedded within the plastic material through injection molding or insert molding, creating a unified component rather than separate parts that need assembly. This merging approach improves structural stability to prevent distortion while minimizing device complexity by eliminating the need for separate installation steps and reducing the number of discrete components.
Solution Approach 2:
The patent applies preliminary action by pre-embedding the metal distortion prevention member into the flange member during the manufacturing process before the product is put into service. The metal member is positioned and secured in advance through injection molding or insert molding techniques, so that when the flange member is installed and subjected to connection forces, the distortion prevention is already in place. This preliminary action ensures structural stability without adding complexity to the installation or operation phases.
Data Source
AI summary
A plastic valve for preventing distortion is disclosed. The plastic valve comprises a connection member made up of plastic and a flange member made up of plastic and formed at an end part of the connection member. Here, a metal member is formed in the flange member, and the metal member includes a body and at least one protrusion projected from the body in a direction of an end of the flange member.