PE (polyurethane) water supply pipe and connection structure thereof

Abstract

The invention discloses a PE (polyurethane) water supply pipe, which is provided with a jack end and a socket end, wherein at least one layer of steel mesh is buried in the pipe wall; a jack steel ring is fixed on the outer wall of the jack end; the outer surface of the jack steel ring is provided with an annular seal groove used for sleeving of a seal ring; and a socket steel ring is fixed on the inner wall of the socket end. The invention also discloses a connection structure of the PE water supply pipe, comprising two PE water supply pipes, wherein the jack end of the second PE water supply pipe is inserted into the socket end of the first PE water supply pipe, and a seal ring is arranged between the jack steel ring of the second PE water supply pipe and the socket steel ring of the first PE water supply pipe. The connection structure provided by the invention has the advantages of convenience for pipeline installation and connection, reduced installation difficulty and installation cost, difficulty in deformation and water leakage, greatly-prolonged service life and capability of realizing connection of more than 3m of large-caliber water supply pipe.

Description

technical field [0001] The invention belongs to the field of plastic pipe manufacture, and in particular relates to a steel mesh reinforced PE water supply pipe and a connection structure for connecting multiple water supply pipes. Background technique [0002] Steel mesh reinforced PE water supply pipe, by embedding steel mesh in the pipe wall, it realizes the use of less plastic raw materials to make high-strength reinforced plastic pipe. As a new type of pipe, its pressure resistance has been significantly improved, and the production cost and the same pressure Compared with the grade of pure plastic pipe, the overall advantage has been recognized by the market. However, in the prior art, because steel mesh reinforced PE water supply pipes are still all connected by electrofusion pipe fittings, the phenomenon of pipe leakage is relatively common. There are many disadvantages in the fusion connection. First, when the product leaves the factory, the electrofusion pipe fitt...

AI Technical Summary

Problems solved by technology

However, in the prior art, because steel mesh reinforced PE water supply pipes are still all connected by electrofusion fittings, the phenomenon of pipe leakage is relatively common.

There are many disadvantages in the fusion connection. First, when the product leaves the factory, the electrofusion pipe fitting and the PE pipe are separated. When installing on the construction site, the PE pipe needs to be inserted into the socket of the electrofusion pipe fitting, so that there will be inconsistent insertion depth of the PE pipe. The fusion of electricity is not good, resulting in water leakage, especially for the connection of large-diameter PE pipes, the two ends of the PE pipe are easily deformed, which makes welding difficult or even impossible; then, the welding requirements are high, and a special welding machine is required to produce ideal As a result, the caliber of the pipe fittings that can be welded in the prior art is limited; secondly, the installation requirements of the pipe fittings are high, requiring specialized technical personnel; Therefore, the requirements for the environment are very high, and there are safety hazards at the same time as energy consumption; finally, because the welding position of the PE pipe is all plastic, it is easy to deform or even leak due to pressure during use, which affects the service life

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