A composite shut-off door

Abstract

A composite throttle valve. The invention relates to the improvement of the structure of the sewage and waste water catchment device. It can control the amount of sewage inflow to a single well to avoid excessive sewage flowing into the treatment plant and causing the treatment plant to run overloaded. It includes a well body located below the ground and connected to the sewage pipe, and also includes a flap door, a cable, a suspension pulley and a counterweight buoy; the flap door is movably connected to the sewage pipe mouth; The upper part of the wellhead in the body; the cable is wound on the suspension pulley, one end of the cable is connected to the lower edge of the flap door, and the other end of the cable is connected to the counterweight buoy. The present invention is provided with flap door in the well body, and it itself has the function of preventing excessive water from entering the pipeline. In the present invention, it is required to be in the open state under normal conditions, so the present invention also adds a counterweight buoy that can make it in the open state. Under normal circumstances, some domestic wastewater flows through the well body and flows into the sewage treatment plant through pipelines for centralized treatment.

Description

technical field [0001] The invention relates to the improvement of the structure of the sewage and waste water catchment device. Background technique [0002] With the improvement of urban environmental protection requirements, the development of modern cities is inseparable from urban drainage pipe networks. Many environmentally friendly cities have set up outlet pipes for sewage and rainwater. However, when the drainage pipe network encounters sudden floods, it is often unable to discharge and divert in time, causing a large amount of rainwater to flow into the sewage plant, resulting in the paralysis of the sewage plant. It may even cause secondary pollution. [0003] The dredging and cut-off equipment used in many intercepting rainwater wells is generally a flap door. When the rainwater is heavy, the flap door cannot be closed in time, causing a large amount of rainwater and sundries to flow into the sewage plant, making the sewage treatment overwhelmed, causing paralys...

AI Technical Summary

Problems solved by technology

However, when the drainage pipe network encounters sudden floods, it is often unable to discharge and divert in time, resulting in a large amount of rainwater flowing into the sewage plant, resulting in the paralysis of the sewage plant

It may even cause secondary pollution

[0003] The dredging and cut-off equipment used in many intercepting rainwater wells is generally a flap door. When the rainwater is heavy, the flap door cannot be closed in time, causing a large amount of rainwater and sundries to flow into the sewage plant, making the sewage treatment overwhelmed, causing paralysis, and affecting industrial production. , people's lives and the natural environment have a major impact

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