Reinforced concrete drainage pipe with embedded plastic inner pipe and manufacturing method therefor

Abstract

The invention relates to a reinforced concrete drainage pipe with an embedded plastic inner pipe and a manufacturing method therefor. The reinforced concrete drainage pipe comprises a plastic pipe body formed by spirally winding a strip-shaped profile, and a concrete pipe body formed by casting concrete; the concrete pipe body is sleeved out of the plastic pipe body; an interlocking structure forfixedly connecting the plastic pipe body and the concrete pipe body is provided between the plastic pipe body and the concrete pipe body; the interlocking structure comprises a protrusion integrally formed on the outer wall of the plastic pipe body, and a groove formed in the inner wall of the concrete pipe body; and the protrusion is embedded into the groove to form buckling fit. According to thereinforced concrete drainage pipe, the friction coefficient of the inner wall of the plastic pipe body is lower than that of a concrete pipe, water flows smoothly without obstruction, the inner wallof the plastic pipe body cannot be severely scoured, and therefore the scoured and eroded speed of the concrete drainage pipe provided by the invention is far lower than that of a drainage pipe of a traditional structure; and the corrosion resistance of the plastic pipe body is high, so that the corrosion resistance of the concrete drainage pipe is effectively enhanced, and the service life of theconcrete drainage pipe is prolonged.

Description

technical field [0001] The invention relates to the field of drainage pipes, in particular to a reinforced concrete drainage pipe with an embedded plastic inner pipe and a manufacturing method thereof. Background technique [0002] Drainage pipes are mainly responsible for the drainage of rainwater, sewage, farmland drainage and irrigation in urban roads, industrial parks, and living quarters. Drainage pipes are divided into plastic drainage pipes, concrete pipes and reinforced concrete pipes. Concrete pipes are widely used due to their simple structure and low cost. At present, most of the concrete pipes provided on the market are made of sand and cement. However, the concrete pipe made only of sand, gravel and cement has the defect of rough and uneven inner wall of the pipe, which will cause the inner wall of the concrete pipe to be strongly eroded when the water body flows, resulting in pits and hollows in the concrete pipe. If this is allowed If the phenomenon continu...

AI Technical Summary

Problems solved by technology

However, the concrete pipe made only of sand, gravel and cement has the defect of rough and uneven inner wall of the pipe, which will cause the inner wall of the concrete pipe to be strongly eroded when the water body flows, resulting in pits and hollows in the concrete pipe. If this is allowed If the phenomenon continues, without treatment, the inner wall of the concrete pipe will be completely eroded by the water body; the pipe will collapse. In addition, with the rapid development of industry, the acidic and toxic properties contained in sewage (especially industrial wastewater) will become more and more serious. More and more, the inner wall of the concrete pipe will be eroded to a certain extent, which will further aggravate the speed of the concrete pipe being eroded and damaged, making the drainage pipe unusable, so it needs to be improved

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