Anti-overflow non-main path drainage device capable of ascending and descending autonomously according to change of water yield

Abstract

The invention discloses an anti-overflow non-main path drainage device capable of ascending and descending autonomously according to change of water yield. The device comprises a pipeline. A cavity isformed in the pipeline. The device can be adjusted timely according to the size of water yield. When the water yield is relatively small, water in any direction is discharged from an auxiliary drainage pipe in an annular groove, and water flushes the auxiliary drainage pipe, so that a J-shaped platen upwarps and then a filter screen in the direction is jacked up to play an anti-blocking role. When the water yield is relatively large and the annular groove is inadequate to drain water, water is discharged from a top main drainage pipe primarily, so that a flood preventing device right below pushes downward, and an ejector rod further jacks up a well cover to increase the displacement. A semi-circular baffle plate can prevent a backflow phenomenon effectively.

Description

technical field [0001] The invention relates to the technical field of municipal drainage, in particular to a non-main road drainage device that prevents overflow and can be raised and lowered automatically according to changes in water volume. Background technique [0002] In rainy days, road garbage and leaves are easy to block the sewer, which is easy to cause urban waterlogging. The existing urban drainage manhole covers are smooth and cylindrical. The rise of the water level will also easily cause sewage backflow. Once the manhole cover is washed away, it is extremely dangerous. The existing drainage wells cannot handle the easy blockage, and all need to be dealt with manually. [0003] The present invention illustrates a device capable of solving the above-mentioned problems. Contents of the invention [0004] Technical problem: The size of the drainage outlet directly affects the drainage effect. The existing drainage wells do not adjust the size of the drainage ou...

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Problems solved by technology

[0002] In rainy days, road garbage and leaves are easy to block the sewer, which is easy to cause urban waterlogging. The existing urban drainage manhole covers are smooth and cylindrical. The rise of the water level will also easily cause sewage backflow. Once the manhole cover is washed away, it is very easy to cause danger. The existing drainage wells cannot handle the easy blockage and need to be dealt with manually

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