Flowback prevention and pollution intercepting device for rainwater and sewage well and working method of flowback prevention and pollution intercepting device

Abstract

The invention relates to a flowback prevention and pollution intercepting device for a rainwater and sewage well. The rainwater and sewage well is relatively provided with a rainwater and sewage confluence inlet pipe, a rainwater discharge pipe and a sewage discharge pipe, wherein the sewage discharge pipe is provided with a pollution intercepting valve, the wall of the sewage discharge pipe is provided with a supporting rod, a lever is arranged at the top end of the supporting rod in a hinged manner, one end of the lever is connected with the travel end of the pollution intercepting valve, water washing plates are arranged at the other end of the lever, and a straight rod is arranged among the water washing plates in a connection manner; a downward bend is arranged at the tail end of therainwater and sewage confluence inlet pipe, the outer wall of the bend is provided with a supporting frame, the supporting frame is provided with a vertical sliding base, a connecting rod is arrangedin the vertical sliding base in a sliding manner, and the lower end of the connecting rod is fixed on the straight rod; a port of the rainwater discharge pipe is provided with a first limiting clamping groove and a hinged base, and the hinged base is provided with a pollution intercepting plate; and the pollution intercepting plate comprises a hinge joint hole, a sealing plate, a limiting bulge, afloating cylinder, a discharge window and a second limiting clamping groove. According to the flowback prevention and pollution intercepting device for the rainwater and sewage well and a working method of the flowback prevention and pollution intercepting device, the sewage is prevented from being mixed into a rainwater system, the pollution intercepting effect is good, the rainwater is prevented from flowing back and entering a sewage pipe network, and the maintenance is easy and the cost is low because of a mechanical structure.

Description

technical field [0001] The invention relates to the technical field of drainage treatment, in particular to a sewage well anti-backflow interception device and a working method thereof. Background technique [0002] Rainwater well is a unified collection facility for urban precipitation. The seepage pipe extending downward at the bottom can replenish rainwater to the ground, and the excess rainwater is drained through the drainage pipe. Its function is to slow down land subsidence and prevent flooding during heavy rain. Soak the road pavement. Sewage wells are drainage wells for urban sewage discharge and sewage. Urban sewage includes: various impurities, dirt, and sewage with mixed components. The rainwater well is a kind of urban public facility that combines rainwater wells and sewage wells. Its advantages lie in that it reduces the cost, cycle and construction difficulty of the project. Due to the special purpose of rain and sewage wells, sewage interception equipment ...

AI Technical Summary

Problems solved by technology

[0003] 1. After the amount of sewage increases, the sewage will be mixed in through the drainage pipe, which will affect the rainwater treatment system;

[0004] 2. The debris in the sewage is easy to affect the buoy, causing rainwater to pour back;

[0005] 3. The maintenance cost of electronically controlled sewage interception equipment is high

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