Pvc-u drainage pipe

Abstract

The invention discloses a pvc-u drainage pipe. The pvc-u drainage pipe comprises a sewage disposal box, the left side wall and the right side wall of the sewage disposal box fixedly communicate with afirst drainage pipe body and a second drainage pipe body correspondingly, a rectangular opening is formed in the front side wall of the sewage disposal box, a filter screen plate fixedly communicateswith the inner wall of the sewage disposal box, and a circular through hole is formed in the rear side wall of the sewage disposal box. A fixing block is fixedly connected to the hole wall of the circular through hole, a cavity is formed in the fixing block, a first sliding block is slidably connected to the inner wall of the cavity, a connecting rod is fixedly connected to the side, close to thesewage disposal box, of the first sliding block, a spring movably sleeves the rod wall of the connecting rod, and the two ends of the spring are fixedly connected with the side wall of the cavity andthe side wall of the first sliding block correspondingly. According to the pipe, it is guaranteed that sewage cannot block the pipeline, the sewage passing rate of the drainage pipe is increased, time and labor are saved in the dredging process, the PVC-U drainage pipe does not need to be replaced again, the pipeline dredging cost is reduced, and sewage in a sewage tank is prevented from drippingon the wall.

Description

technical field [0001] The invention relates to the technical field of PVC-U drainage pipes, in particular to a PVC-U drainage pipe. Background technique [0002] PVC-U pipe is made of sanitary polyvinyl chloride (PVC) resin as the main raw material, adding appropriate amount of stabilizer, lubricant, filler, color enhancer, etc., extruded by plastic extruder and injection molded by injection molding machine, after cooling , solidification, shaping, inspection, packaging and other processes to complete the production of pipes and pipe fittings. It has excellent physical and chemical properties, chemical corrosion resistance, high impact strength, and small fluid resistance. Compared with cast iron pipes of the same diameter, the flow rate is 30% higher. It is resistant to aging and has a long service life. Long, the service life is not less than 50 years, it is an ideal material for building water supply and drainage. [0003] PVC-U pipes are often used as sewer pipes and s...

AI Technical Summary

Problems solved by technology

[0003] PVC-U pipes are often used as sewer pipes and sewage pipes in life and production, but PVC-U pipes are fixedly connected together with joints during use. When the pipes are blocked by sewage impurities, it is very troublesome to clear them. Sometimes It is even necessary to cut the pipe and replace the blocked pipe to clear the blockage. The process of clearing the blockage is time-consuming and labor-intensive, and new pipes need to be replaced. PVC-U pipes have a large loss and increase the cost of pipe dredging

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