Enhanced thermoplastic composite pipe buckling and pressing joint and buckling and pressing connection method

Abstract

The invention discloses an enhanced thermoplastic composite pipe buckling and pressing joint, which comprises a core pipe and an outer pipe, wherein both the core pipe and the outer pipe are L-shaped and are arranged in parallel to each other; the horizontal section of the core pipe is a core part, and the vertical section of the core pipe is an inner connecting piece; the horizontal section of the outer pipe is a buckling and pressing sleeve, and the vertical section of the outer pipe is an outer connecting piece; and a gap is formed between the inner connecting piece and the outer connecting piece. The invention also discloses a connection method using the joint. By buckling and pressing the pipe wall of a composite pipe and clamping the flanged end edge of the composite pipe, double buckling and pressing effects can be realized. The joint has a simple structure and is convenient to connect and operate; and the stability and the reliability for use are greatly improved.

Description

technical field [0001] The invention relates to the technical field of pipe connection, in particular to a reinforced thermoplastic composite pipe crimp joint and a connection method. Background technique [0002] Reinforced thermoplastic composite pipes are usually mainly composed of three layers, that is, inner and outer plastic layers and a reinforcing layer compounded by reinforcing materials arranged in the middle. At present, for reinforced thermoplastic composite pipes, pipes are usually connected by reinforced electrofusion sleeves, and pipes and equipment are usually connected by crimp joints or reinforced electrofusion joint flanges, so that there are various connections such as flanges and threads. form. [0003] At present, the existing technology enhances the connection method of the electrofusion sleeve. The manufacturing process of the electrofusion sleeve is complicated, and the yield and production efficiency are low. When connecting, the sleeve and the pip...

AI Technical Summary

Problems solved by technology

But for steel wire rope reinforced composite pipes with a certain rigidity, the existing technology only deforms the inner and outer surfaces of the pipe wall, while the steel wire rope reinforcement layer in the middle remains unchanged, and the compression force produced by this deformation is still limited

Apparently, the structural mode of the crimped joint in the current prior art relies on the joint core, the joint jacket and the inner and outer walls of the pipe to be crimped and connected only on two mutually parallel surfaces. Under the influence of stress changes, it is easy to loosen. The stability and reliability of use are poor

Images