PP skeleton reinforced PE spiral corrugated pipe

Abstract

The invention discloses a PP skeleton reinforced PE spiral corrugated pipe which includes a base body which is formed by winding of a squeezing unit. A reinforcing pipe is wound around the base body. The squeezing unit includes a recessed cavity and two pipe bodies. Each pipe body is in hollow arrangement. The two pipe bodies are connected and are respectively arranged on two sides of the recessed cavity. The reinforcing pipe is nested inside the recessed cavity. The squeezing unit is made of a HDPE material, and the reinforcing pipe is made of a PP material. According to the invention, a closer connection between the reinforcing pipe and the base body is achieved when the reinforcing body is wound around the base body by improving the structure of a basic unit, and the outer diameter of the whole pipe is much smaller when the same ring stiffness and inner diameter of the pipe are ensured. Furthermore, the hollow arrangement of the basic unit enables the whole pipe to have an inner pipe wall and an outer pipe wall, so that the ring flexibility of the pipe is increased and the relative density of the whole pipe is reduced. The PP skeleton reinforced PE spiral corrugated pipe is applicable to municipal pipelines.

Description

technical field [0001] The invention relates to a municipal pipe, especially a HDPE corrugated pipe. Background technique [0002] Traditional HDPE corrugated pipes are wrapped with small corrugated pipes on a smooth substrate to improve the strength of the product. However, the existing matrix is ​​tightly wound by extrusion units, and the gap between the extrusion units is very small, so the surface of the formed matrix is ​​basically flat, and then wound on the flat surface of the pipe Bellows, the finished product itself has poor ring stiffness and ring flexibility. In addition, the overall is bulky and unfavorable for storage and transportation. The overall thickness affects the bearing capacity and turning. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a municipal pipeline with good comprehensive performance. [0004] The solution of the present invention to solve its technical problems is: PP skeleton ...

AI Technical Summary

Problems solved by technology

However, the existing matrix is ​​tightly wound by extrusion units, and the gap between the extrusion units is very small, so the surface of the formed matrix is ​​basically flat, and then wound on the flat surface of the pipe Bellows, the ring rigidity and ring flexibility of the finished product are not good, and the whole is bulky, which is not conducive to storage and transportation, and the overall thickness affects the bearing capacity and turning

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