Steel wire fixing structure for end of steel wire mesh framework polyethylene composite pipe, and steel wire mesh framework polyethylene composite pipe connecting structure and method

Abstract

The invention relates to the technical field of pipe connection, in particular to a steel wire fixing structure for the end of a steel wire mesh framework polyethylene composite pipe, and a steel wire mesh framework polyethylene composite pipe connecting structure and method. The steel wire fixing structure for the end of the steel wire mesh framework polyethylene composite pipe is structurally characterized in that an outer steel ring is embedded in the end of the steel wire mesh framework polyethylene composite pipe, a circle of protrusion is arranged on the edge of the outer steel ring, and the protrusion is located on the side away from the edge of the steel wire mesh framework polyethylene composite pipe; and the end of the steel wire mesh framework polyethylene composite pipe is folded towards the outer steel ring, the folded position extends to the protrusion, and an inner steel ring is embedded in the outer part of the folded steel wire mesh framework polyethylene composite pipe. The problems that in the prior art, steel wires at the end of steel wire mesh framework polyethylene composite pipes are prone to scattering, and in the connecting process, a sealing gasket and a flange are prone to leaking and falling off; and the tightening degrees of bolts on the flange need to be completely consistent, so that the operation is very difficult are solved.

Description

technical field [0001] The invention relates to the technical field of pipe connection, and specifically provides a structure and method for fixing and connecting steel wires at the ends of polyethylene composite pipes with a steel mesh skeleton. Background technique [0002] The statements herein merely provide background information related to the present invention and may not necessarily constitute prior art. [0003] The steel mesh skeleton polyethylene composite pipe has excellent flexibility and is widely used in the industrial field. It is suitable for long-distance buried water supply and gas pipeline systems. At present, after the steel mesh skeleton polyethylene composite pipe is rolled off the production line, the loose ends of the steel wires at the pipe end are not fixed, and are directly connected by electrofusion or crimping. When the size is large, the steel wire is easy to draw and cause product performance failure, resulting in pipeline leakage. [0004] ...

AI Technical Summary

Problems solved by technology

[0005] In view of the existing technology, the steel wire at the end of the polyethylene composite pipe with steel mesh skeleton is easy to scatter, and in the connection process, the gasket plus flange method is easy to leak and fall off; and the tightening degree of the bolts on the flange needs to be exactly the same, so the operation is very difficult The problem

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