Drainage ditch cover and gas blocking disk thereof

Abstract

The invention relates to a drainage ditch cover and a gas blocking disk thereof. The drainage ditch cover comprises a frame seat, the gas blocking disk and a cover plate, wherein the gas blocking disk and the cover plate are arranged in the frame seat; the gas blocking disk is provided with a top surface and a bottom surface; the top surface is provided with at least one sunken water collecting region; at least one slotted hole and at least one overflow hole which penetrate through the top surface and the bottom surface of the gas blocking disk are arranged in the water collecting region; the slotted hole is provided with an elastic sheet capable of being opened and closed at the bottom surface end of the gas blocking disk; and the overflow hole is provided with a plate sheet capable of being opened and closed at the top surface end of the gas blocking disk. In the invention, because the overflow hole is provided with the plate sheet capable of being opened only in one direction facing the top surface of the gas blocking disk, when the water level in the drainage ditch suddenly rises caused by heavy rain or other factors, the pressure of the water flow in the drainage ditch can push the plate sheet upward, so that the suddenly and greatly increased water can overflow out of the drainage ditch through the overflow hole, thereby preventing the gas blocking disk and the cover plate from being supported or moved by the buoyancy of the water flow to ensure the safety of pedestrians and vehicles.

Description

technical field [0001] The invention relates to a drainage ditch cover and its air blocking plate, in particular to a drainage ditch that can discharge rainwater or accumulated water on the road surface into the drainage ditch, and can prevent mosquitoes, odor and methane from overflowing in the drainage ditch. And when the water level in the drainage ditch rises and overwhelms the drainage ditch cover, it can avoid the drainage ditch cover and the air blocking plate thereof supported by the water pressure and the buoyancy in the drainage ditch. Background technique [0002] Please refer to figure 1 As shown, the existing gutter cover 1 is directly erected on the gutter 2, and the gutter cover 1 is provided with several drainage holes 11, so that rainwater or accumulated water on the road can flow to the Inside the gutter 2. [0003] However, rainwater or accumulated water on the road surface can flow into the drainage ditch 2 through each of the drainage holes 11. Corresp...

AI Technical Summary

Problems solved by technology

[0005] However, when heavy rain or other factors cause the water level in the gutter to rise suddenly, the water flow in the gutter is not easy to reversely overflow to the road because of the design of the filter member and the resistance piece of the existing structure. When the water level in the gutter rises to overwhelm the main body, the main body may be supported or displaced by the water pressure and buoyancy due

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