Drainage pipe, manufacturing method thereof and drainage pipe unit assembly method

Abstract

Disclosed are a drainage pipe, a manufacturing method thereof and a drainage pipe unit assembly method. A plurality of the drainage pipes are detachably assembled together, and the drainage pipe comprises a pipe wall which is formed by splicing of a hollow pipe fitting and a connecting piece and surrounding around a central axis. The pipe wall comprises an inner pipe surface with an expanding section, an outer pipe surface with a reducing section located at the opposite end to the expanding section, and a spiral pipe extending spirally. The spiral pipe is provided with an inner groove section corresponding to the expanding section and an outer groove section corresponding to the reducing section. The reducing section is provided with an outer clamp portion which is spirally arranged at an interval with the outer groove section and detachably clamped to the inner groove section of another adjacent drainage pipe. The manufacturing method is used for manufacturing the drainage pipe. The drainage pipe unit assembly method is used for assembling the two drainage pipes. The assembly and disassembly process is simple, convenient and quick, and further construction efficiency can be improved while construction cost is lowered.

Description

technical field [0001] The present invention relates to a pipe, its manufacturing method and pipe unit assembly method, in particular to a drainage pipe which is suitable for being installed under the ground and is used to collect domestic sewage or industrial waste water and send it to a sewage treatment plant for confluence and concentration. Manufacturing method and assembling method of the drain pipe unit. Background technique [0002] A general drainage pipe usually includes a pipe wall extending longitudinally along a central axis, and a flow guide space defined by the pipe wall around the central axis. When laying, the drainpipes are usually connected head to tail one by one and assembled together, but since the pipe walls of the drainpipes are all hollow cylinders, there is no use for any two adjacent parts. Assembled structural design. Therefore, when assembling two adjacent drainage pipes, it often requires additional assistance from other equipment, utensils or ...

AI Technical Summary

Problems solved by technology

[0004] It can be seen that the general drainage pipe often needs to use auxiliary tools when assembling. The above-mentioned method will increase the construction cost, and the assembly process is also quite cumbersome and complicated. It is not only troublesome and time-consuming, but also reduces the construction efficiency.

And the aforementioned assembly method, when the damaged drainpipe needs to be replaced in the future, its disassembly operation is also quite troublesome and inconvenient

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