Threaded Pipe Coupling Sleeve for High-Pressure Leak Prevention
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Solution Overview
Problem
Existing pipe coupling technologies, such as flange and cutting ring couplings, are bulky, expensive, difficult to install, prone to leaks, and unsuitable for high-pressure applications, especially in mobile equipment, and require significant manual effort, posing risks of damage and environmental harm.
Innovation Solution
A three-part coupling system comprising an outer tubular part, inner tubular part, and a sleeve with threaded portions and sealing rings, allowing for secure, leak-proof connections under high pressure without radial forces, facilitated by non-locking threads and a locking mechanism to prevent relative rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If flange couplings are used for pipe connection, then connection reliability is improved, but device size and weight increase significantly
Solution Approach 1:
The coupling is divided into two separate parts: a first coupling part with internal threading and a second coupling part with external threading. These parts are screwed together to form the complete coupling, eliminating the need for heavy flanges while maintaining connection reliability through the threaded engagement mechanism.
2Ease of operation
If cutting ring couplings are used for pipe connection, then installation ease is improved, but sealing reliability deteriorates at high pressures
Solution Approach 1:
A sealing ring is introduced as an intermediary element between the two coupling parts. This sealing ring prevents fluid leakage at the joint interface, ensuring reliable sealing at high pressures while maintaining the ease of installation provided by the screw-together design.
3Strength
If conventional couplings are used, then connection strength is improved, but complexity of installation increases
Solution Approach 1:
The coupling design allows the operator to screw the two coupling parts together directly without requiring additional tools, gaskets, or complex assembly procedures. The self-contained threaded connection and integrated sealing ring enable the coupling to serve itself, simplifying installation while maintaining strong connections.
4Use of energy by moving object
If high operating pressure is increased to save energy and size, then system efficiency is improved, but connection reliability deteriorates
Solution Approach 1:
The coupling combines different materials and structural elements: threaded metal coupling parts for strength, and a sealing ring for pressure-tight sealing. This composite approach allows the connection to withstand high operating pressures reliably, enabling increased system efficiency without compromising connection integrity.
Data Source
AI summary
A pipe coupling is described comprising an outer tubular part (1) with threads inside, an inner tubular part (10) with threads outside, and a sleeve (5) where on a first half of the sleeve there are external and inner threads which fit in the threads of the outer and inner tubular parts, respectively, so that the sleeve (5) can be screwed into the outer tubular part (1) while it is simultaneously screwed onto the inner tubular part (10) and the outer and inner tubular parts are firmly connected to each other through the threads on the sleeve (5).