Underground water pressure reduction drainage device

Abstract

The invention discloses an underground water pressure reduction drainage device, and relates to the field of urban underground water drainage equipment. The underground water pressure reduction drainage device comprises a drainage pipe, a pressure relief plate, a pressure relief pipe and a water collection tank, wherein the drainage pipe comprises a water inlet end and a water outlet end, the water outlet end is used for communicating with the water collection tank, at least one drainage hole is formed in the pressure relief plate, the pressure relief plate is movably arranged in the drainage pipe, a pressure relief pipe connector is formed in the side wall of the drainage pipe, one end of the pressure relief pipe is used for communicating with the pressure relief pipe connector, the other end of the pressure relief pipe is used for communicating with the water collection tank, when the water pressure of the water inlet end is not larger than first water pressure, the upper edge, opposite to the pressure relief pipe connector, of the pressure relief plate is not lower than the highest point of the pressure relief pipe connector, and when thewater pressure of the water inlet end is larger than the first water pressure, the pressure relief plate can move downwards along the drainage pipe under the pressure effect of water, so that the upper edge, opposite to the pressure relief pipe connector, of the pressure relief plate is lower than the highest point of the pressure relief pipe connector. The underground water pressure reduction drainage device can control underground water drainage pressure.

Description

technical field [0001] The invention relates to the field of urban groundwater discharge equipment, in particular to a groundwater decompression drainage device. Background technique [0002] In recent years, with the development of cities, people pay more and more attention to underground drainage facilities. At present, some underground structures in cities have no balance between upper load and buoyancy. When there is a lot of rain, the rise of groundwater level will affect the anti-floating structure of buildings. The existing anti-floating methods include passive anti-floating methods and active anti-floating methods. The passive anti-floating method has high cost and long construction time, which is difficult to meet people's requirements; while the existing active anti-floating method has low cost, but it does not Without groundwater pressure control, the groundwater drainage pressure cannot be controlled within a limited range, which will easily lead to excessive dra...

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the development of cities, people pay more and more attention to underground drainage facilities. At present, some underground structures in cities have no balance between upper load and buoyancy. When there is a lot of rain, the rise of groundwater level will affect the anti-floating structure of buildings. The existing anti-floating methods include passive anti-floating methods and active anti-floating methods. The passive anti-floating method has high cost and long construction time, which is difficult to meet people's requirements; while the existing active anti-floating method has low cost, but it does not Without groundwater pressure control, the groundwater drainage pressure cannot be controlled within a limited range, which will easily lead to excessive drainage and cause safety hazards

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