Intermediate joint for flexible composite pipe
By using threaded connections and combined sealing and venting design, the problems of welding corrosion and poor sealing of intermediate joints in composite pipes are solved, achieving high sealing and effective venting without welding, and improving the connection stability and safety of composite pipes.
CN116241731BActive Publication Date: 2026-08-28JIANGSU ZHIHAI NEW MATERIAL R & D CO LTD
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Patent Information
- Application Number
- CN202211497885.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-11-28
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2042-11-28
AI Technical Summary
Technical Problem
Existing intermediate joints for composite pipes suffer from corrosion at the welded joints, poor sealing, and easy blockage of the vent holes, which affect the sealing and safety of the connection.
Method used
The outer sleeve and inner core tube are designed with threaded connections, combined with sealing components, snap-fit components and venting components. They are fixed by threaded connections, and ventilation channels and venting holes are set to achieve weld-free sealing and effective discharge of leaked gas.
Benefits of technology
It improves the sealing and safety of composite pipe connections, prevents welding corrosion, avoids leakage and vent blockage, and ensures the stability and reliability of the pipe body.
✦ Generated by Eureka AI based on patent content.
Abstract
The present application relates to a kind of intermediate joints for flexible composite pipe, including two inner core pipes, two outer sleeve pipes and composite pipe between inner core pipe and outer sleeve pipe, one end of the outer sleeve pipe is threadedly connected with connecting piece, the connecting piece includes connecting pipe, sealing assembly is arranged in the connecting pipe, the outer sleeve pipe is fixedly provided with engagement assembly, exhaust assembly is also provided on the connecting pipe, the sealing assembly is used to seal the junction of outer sleeve pipe and connecting pipe under the cooperation of engagement assembly when gas leaks, the exhaust assembly is used to discharge a large amount of leaked gas, prevent the pipe body from bursting due to too much gas in the pipe, improve the sealing between outer sleeve pipe and connecting piece, solve the problem that the original outer sleeve pipe and connecting piece need to be welded, so that the welding part is corroded due to long-term use and the sealing of the welding part is poor.
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