Rainwater well type automatic discarding device

Abstract

The invention discloses a rainwater well type automatic discarding device. The device comprises a rainwater well, a rainwater pipe and a discharging pipe, wherein the rainwater pipe communicates withthe side portion of the rainwater well, a collecting pipe communicates with the side portion of the rainwater well, the discharging pipe communicates with the side portion of the rainwater well, and the height of the discharging pipe is smaller than that of the rainwater pipe and that of the collecting pipe; and a supporting shaft is arranged in the discarding pipe, a blocking piece is rotatably arranged on the outer wall of the supporting shaft, and a floating body is arranged on one side of the blocking piece. According to the device, the supporting shaft, the blocking piece and the floatingbody are arranged in the discharging pipe, rainwater flows into the rainwater well through the well mouth of the rainwater well and the rainwater pipe, at the beginning, the rainwater flow is small,rainwater in the earlier stage is discharged through the discharging pipe, and in the middle and later stages of raining, the rainwater amount is large, the height of rainwater in the rainwater well is increased, and generated buoyancy pushes the blocking piece to rotate to shield the discharging pipe, so that the rainwater is gradually raised to arrive at the collecting pipe, the clean rainwateris discharged from the collecting pipe, the operation cost is low, and the stability is high.

Description

technical field [0001] The present application relates to the technical field of rainwater abandonment, in particular, to a rainwater well-type automatic abandonment device. Background technique [0002] When it rains, affected by the underlying surface, the newly collected rainwater, that is, the initial runoff contains more pollutants, and the water quality is poor. As the rainfall continues, the early rainwater washes away the sundries on the underlying surface, and then The rainwater in the later period is relatively clean and the water quality is better. To collect and treat rainwater before using it, it is natural to focus on the clean rainwater in the middle and late stages, and separate the dirty rainwater from the total amount of rainwater to be treated and utilized. , this process of separating the initial rainwater without affecting the treatment of the rainwater to be collected is the initial rainwater abandonment. [0003] Current abandonment devices generally ...

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Problems solved by technology

[0004] The main purpose of this application is to provide a rainwater well-type automatic flow abandonment device to solve the problems of high operating costs and poor stability of electric drive form of flow abandonment devices in the related art

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