Drainage device used for collecting municipal sewage

Abstract

The invention relates to the technical field of sewage treatment, in particular to a drainage device used for collecting municipal sewage. The drainage device comprises an impurity retaining mechanismand a sliding mechanism. Sewage flows into a sewage pool through a water inlet pipe, when a lifting driving piece drives an inner pile to lift relative to an outer pipe until retaining rods are arranged in the horizontal direction in via holes, impurities can be retained by the retaining rods, the lifting driving piece then drives the retaining rods to draw back into the outer pipe, and at this moment, the impurities hung on the retaining rods lose support and fall to the bottom of the sewage pool under the effect of gravity; and the output end of a reciprocating driving piece drives a sweeping ring to sweep the peripheral side of the outer pipe in the length direction of the outer pipe, and the output end of a telescopic driving piece in a pushing mechanism pushes a pushing scraper bladeso that the pushing scraper blade can push the impurities settled at the bottom of the sewage pool to an impurity collecting pool. The drainage device has the functions that the impurities flowing into the sewage pool can be retained in a timely manner, and the situation that the impurities block a water outlet pipe is reduced.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a drainage device for municipal sewage collection. Background technique [0002] Residential sewage collection is an important part of municipal drainage and sewage treatment. Its purpose is to collect the sewage discharged by multiple drainage units in the community and transport it to the main pipeline for discharge or discharge it after treatment through sewage treatment facilities. [0003] The existing invention patent with the notification number CN104652573A provides a vacuum drainage system technology and device for municipal sewage collection. An emptying pipe connected to the air is installed at the end of the vacuum pipe, and the opening and closing of the emptying pipe is controlled. Through A certain amount of air is added to increase the pressure difference between the front end surface and the rear end surface of the water column, so that the water column ...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: after the sundries in the water collection tank have accumulated to a certain amount, they need to be manually cleared, otherwise the sundries will accumulate in the sewage tank, and when there are many sundries, they will accumulate at the net , making it difficult for sewage to flow out of the vacuum tube, so it is necessary to improve the existing technology

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