hdpe inner rib pp reinforced spiral corrugated pipe

Abstract

The invention discloses an HDPE inner fin PP reinforced helically corrugated tube, comprising a tube body formed by helically winding and welding a strip; the strip is made of an HDPE material; an upper surface of the strip is provided with a rib and a positioning lug both integrally formed with the strip; the tube body is wound with reinforcement skeletons that are each in an "omega" shape; feet of each reinforcement skeleton are connected against the positioning lug; an inner surface of an upper portion of each reinforcement skeleton is connected against the rib; the reinforcement skeletons are made of a PP material; and each reinforcement skeleton is also covered with a layer of PE film. The HDPE inner fin PP reinforced helically corrugated tube employs the reinforcement skeletons made of the PP material, and excellent strength of the PP material and excellent compatibility of the HDPE material are used; besides, the rib extends from the strip and is used for supporting the reinforcement skeletons, and the force exerted to the reinforcement skeletons is thus transferred to the strip and the overall ring stiffness of the helically corrugated tube is guaranteed; additionally, the reinforcement skeletons are each covered with a layer of PE film, such that a plurality of reinforcement skeletons may be integrally connected.

Description

Technical field [0001] The invention relates to a municipal pipeline, particularly a plastic sewage and drainage pipeline. Background technique [0002] In municipal construction, the burying of underground drainage pipes and sewage pipes is an important municipal project. Commonly used drainage pipes and sewage pipes include concrete pipes and metal pipes. The new material high-strength polyethylene has flexibility, corrosion resistance and wear resistance. Performance, compared with all-plastic buried drainage pipes with the same diameter and ring stiffness, it can significantly reduce costs. While achieving high performance, its outstanding advantage is that it saves raw materials. The outer corrugated plastic-wound structural wall with hollow reinforcement ribs Pipes are widely used in the construction of municipal sewage pipelines due to their good pipe-soil interaction and ring stiffness. In order to improve the ring stiffness of the plastic pipe, a metal frame is added to...

AI Technical Summary

Problems solved by technology

However, because the main body of the pipe is a plastic component, and the compatibility between the metal skeleton and the main body is not good, the metal skeleton is easy to move or even fall off during use, thus affecting the overall strength of the pipe.

Images