Flood flow-increasing drainage concrete manhole cover

Abstract

The invention discloses a flood flow-increasing drainage concrete manhole cover, the structure includes: a flood aid and drainage device, a water inlet, a support bar and a fixing frame, wherein the flood aid and drainage device comprises a flushing hole, a manhole cover main body, a compression spring, a deflector, a supporting float, a micro force piston, water collection holes, a buoyancy drainage tanks, a push rod, a buoyancy deflector and a clamping block. A slight force piston is nested in that flushing hole, the inner surface of the well cover main body is in contact with the outer surface of the supporting floating plate. The beneficial effects are: in case of heavy rain or sustained rainfall in the city, under the action of the flushing hole and the water collecting hole, when theinternal water level rises, the supporting floating plate floats upward, so that people do not step into the well by mistake, and under the action of the diversion platform, the water generates eddycurrent state, finally forms siphon effect, improves the drainage speed, avoids the flood caused by heavy rain in the city, and causes the phenomenon of slow drainage after the water accumulates in the city.

Description

technical field [0001] The invention relates to the field of drainage, in particular to a flood-increasing drainage concrete manhole cover. Background technique [0002] The well cover is sealed on the wellhead and is used to cover the road or deep well in the home to prevent people or objects from falling. [0003] When the weather is heavy rain, heavy rain or continuous rainfall, due to the relatively limited drainage of the city's drainage system, it is easy to cause water accumulation, and because the manhole cover is generally sealed, when it is necessary to open the manhole cover to help drainage, generally A lifting device is needed to remove it to improve drainage efficiency, but since the well cover is removed, the water will submerge the well head, and due to the turbidity of the water, it is difficult to find the position of the well head, which may easily cause pedestrians or vehicles to fall into the well head. Contents of the invention [0004] Aiming at the...

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Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the object of the present invention is to provide a flood-increasing drainage concrete manhole cover to solve the problem that the drainage system of the city is relatively limited due to the relatively limited drainage of the current weather when it rains heavily, torrentially or continuously. The phenomenon of water accumulation, and because the manhole cover is generally sealed, when it is necessary to open the manhole cover to facilitate drainage, it generally needs to be removed by a lifting device to improve the efficiency of drainage. However, after the manhole cover is removed, the water will submerge the wellhead. Moreover, due to the turbidity of the water, it is difficult to find the position of the wellhead, which may easily cause pedestrians or vehicles to fall into the wellhead.

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