Socket-and-spigot double-flat-wall composite pipe and manufacturing method thereof

Abstract

The invention discloses a socket-and-spigot double-flat-wall composite pipe which comprises a double-wall corrugated pipe body and a socket, wherein the socket is integrally arranged at one end of thedouble-wall corrugated pipe body; a spigot connecting segment is arranged at the end, far away from the socket, of the double-wall corrugated pipe body; the double-wall corrugated pipe body comprisesan inner flat wall layer and a corrugated reinforcement layer; crests and troughs are arranged on the outer wall of the corrugated reinforcement layer; and a plurality of ring-shaped reinforcement ribs are arranged at intervals on the peripheral surface of the socket in the axial direction. The socket-and-spigot double-flat-wall composite pipe is characterized in that an outer flat wall layer isarranged on the peripherals of the double-wall corrugated pipe body and the socket, and extends to the middle of the spigot connecting segment from the socket; and the middle position of the spigot connecting segment is inward wrapped in the outer flat wall layer along cambered surfaces used for connecting the crests with the troughs. Compared with the prior art, the socket-and-spigot double-flat-wall composite pipe disclosed by the invention has the advantages that the weight is light, the material consumption is low, the strength is high, the production efficiency is high, the dragging and the rolling are convenient, and the backfilling is compact during the laying process.

Description

Technical field [0001] The invention relates to the technical field of pipes, in particular to a socket type double flat-walled composite pipe and a manufacturing method thereof. Background technique [0002] Structural wall pipe is a kind of structural wall pipe made of polyolefin as raw material by compression molding or thermal winding molding process. Common structures include double-wall corrugated pipes and winding structural wall pipes. The pipe is a new type of acid-resistant, anti-corrosion, pressure-resistant, and non-toxic green environmental protection pipe. It is an environmentally friendly and energy-saving high-tech product. It is the ideal replacement product for cement pipes, cast iron pipes, and glass pipes. How to make structural wall pipes have good flexibility and overall resistance to external pressure. When used on roads with heavy loads, ensuring traffic safety is the primary consideration for pipe design. In application, the reliability of structural wal...

AI Technical Summary

Problems solved by technology

[0006] In view of the deficiencies in the prior art, the object of the present invention is to provide a socket-type double-flat-wall composite pipe, which has the advantages of light weight, less material consumption, high strength and high production efficiency of the double-wall corrugated pipe, and can overcome the The double-wall corrugated pipe is inconvenient to drag and roll, and the backfill is difficult to compact during laying; the second purpose of the present invention is to provide a method for manufacturing the above-mentioned socket-type double-flat-wall composite pipe

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