Large-diameter plastic pipe with z-shaped socket electric hot-melt connection

Abstract

The invention discloses a Z-shaped large-caliber plastic pipe connected through inserted electric heat fusion. The plastic pipe comprises a pipe body, a socket end, a plug end and an electric heating piece. The socket end is arranged at one end of the pipe body, and the plug end is arranged at the other end of the pipe body. The plug end comprises a first ring face and a second ring face. The diameter of the second ring face is larger than that of the first ring face. A conical transition section is arranged between the first ring face and the second ring face. The socket end comprises a third ring face and a fourth ring face, the diameter of the fourth ring face is larger than that of the third ring face, and a funnel-shaped transition section is arranged between the third ring face and the fourth ring face. The electric heating piece is arranged at the socket end and / or the plug end. The Z-shaped plastic pipe is arranged at the plastic pipe joint. Compared with butt joint heat fusion and parallel inserted electric heat fusion, fusion welding faces are not located on one section and extend to the x direction and the y direction, and the fusion welding strength is greatly improved; and the drawing performance of a pipeline system is improved, and the capability of the pipeline for resisting the surface subsidence is improved.

Description

technical field [0001] The invention belongs to the technical field of plastic pipes and pipe connections, and in particular relates to a large-diameter plastic pipe with a "Z"-shaped socket and electric hot-melt connection, and the application of the plastic pipe. Background technique [0002] Socket connection means that the two ends of the plastic pipe are a socket and the other end is a plug. Such a pipe is socketed with another pipe to form a pipe network. Traditional socket-type plastic pipes, such as PVC-U rigid polyvinyl chloride building drainage pipes, are typical socket-type connections. The socket is to expand one end of the off-line solid-wall pipe through a belling machine to become a socket. The seal at the place is sealed with glue or sealed with a rubber ring. [0003] At present, there are the following types of large-diameter and super-large-diameter plastic drainage and sewage pipes used in my country: Double-wall corrugated pipes: made of PE, PP, and P...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a large-diameter plastic pipe with a "Z"-shaped socket and electric hot-melt connection, so as to solve the shortcomings of the connection and sealing of the existing large-diameter wall pipes, which cannot ensure the continuous and stable pipe network. The technical problems of poor connection strength, poor sealing reliability of the joints between pipes, and poor resistance to ground subsidence movement

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