Buried drainage structure for municipal engineering

Abstract

The invention discloses a buried drainage structure for municipal engineering. The buried drainage structure comprises a deceleration strip, a drainage pipe and a water inlet pipe. The drainage pipe comprises an outer pipe and an inner pipe from outside to inside, a drainage channel is arranged in the inner pipe, and a gap exists between the outer pipe and the inner pipe; a plurality of bearings are fixed on the inner pipe in a sleeving manner; an annular extending part is arranged on one side of an inner ring of each bearing, and a plurality of protruding parts are fixed to the extending par;a plurality of annular holes are formed in the outer pipe, the outer ring of each bearing is fixed to one sides of the annular holes, an annular gap is formed between the outer ring of the bearing and the annular holes, and the gap is aligned with the extending part; a groove is formed in the bottom of the deceleration strip, and an air bag is fixed in the groove. According to the invention, theinner pipe is enabled to be in a rotating state for a long time, the inner pipe cannot be blocked during drainage, and thus the subsequent blockage removing operation is reduced; when the inner pipe is in a rotating state for a long time, dirt is not easily formed on the inner wall of the inner pipe, the diameter of the drainage channel of the inner pipe is not reduced, and the drainage efficiencyof the inner pipe is improved.

Description

technical field [0001] The invention relates to the field of municipal engineering, in particular to an underground drainage structure for municipal engineering. Background technique [0002] At present, drainage is often required on municipal engineering roads, and the commonly used drainage devices include drainage pipes. Drainage pipeline refers to the system composed of pipes and channels and their ancillary facilities for collecting and discharging sewage, waste water and rainwater. Including main pipes, branch pipes and pipelines leading to treatment plants, no matter they are built on streets or anywhere else, as long as they are used for drainage, they should be counted as drainage pipelines. [0003] Commonly used drainage pipes tend to be blocked during the drainage process, which reduces the efficiency of drainage, and it is troublesome to remove the blockage. Contents of the invention [0004] The technical problem to be solved by the present invention is an ...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is an underground drainage structure for municipal engineering, which is not easy to be blocked, and is not easy to accumulate foreign matter layers in the drainage channel

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