A w-shaped bracket hollow filling pvc sewage pipe

Abstract

The invention provides a hollow filled PVC (polyvinyl chloride) drainage pipe by W-shaped supports. The wall of the PVC drainage pipe comprises an impact-resistant solid plastic layer which includes a solid plastic outer layer and a solid plastic inner layer, the continuous W-shaped supports are arranged between the solid plastic outer layer and the solid plastic inner layer, materials of the W-shaped supports are as same as those of the solid plastic outer layer and the solid plastic inner layer, and foam filling layers are arranged between gaps formed among the solid plastic outer layer, the solid plastic inner layer and the W-shaped supports. The drainage pipe is ingenious and simple in structure, PVC ring stiffness is obviously improved by the aid of hollow design and triangle stability and mechanical transfer principles, hollow gaps are filled by the aid of a foaming method, the supports are further enhanced, use amount of raw materials is greatly saved, ring stiffness and impact resistance of the hollow pipe far exceed those of an original PE (polyethylene) corrugated pipe and an original PVC corrugated pipe, and use amount of the PVC raw materials of the hollow pipe is lower than that of the PVC raw materials of a PVC solid wall pipe.

Description

technical field [0001] The invention relates to a pipeline, and mainly relates to a W-shaped support hollow filling PVC sewage discharge pipe. Background technique [0002] With the vigorous development of the city, the lag of large-scale drainage in domestic cities has caused the seriousness of waterlogging in many cities. The use of large plastic pipes is on the rise. In large-scale sewage pipelines, the biggest advantage of using plastic pipes is that it is convenient for construction, and the disadvantage is that the ring rigidity is poor. The currently used plastic large-scale sewage pipes are mainly PE corrugated pipes and steel belt pipes. However, although the corrugated pipes only increase the ring stiffness, their impact performance is obviously weaker. Although the steel belt is superior, the disadvantage is that after using the steel belt, the gap between the shrinkage parameter and the PE is large. After a long time of use, the PE will obviously break away fro...

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