Sewage well lid capable of changing hole diameter according to rainwater flow

Abstract

The invention discloses a sewage well lid capable of changing hole diameter according to the rainwater flow, and relates to the technical field of well lids. The sewage well lid comprises a foundation; the middle of the foundation is movably connected with a well lid body, the middle of the well lid body is provided with a water storage tank, the middle of the water storage tank is movably connected with a floating block, a dielectric plate is fixedly connected to the middle of the floating block, a water leakage hole penetrating through and extending to the bottom of the well lid body is formed in the bottom of the water storage tank, and electrode plates are fixedly connected to the two sides, close to the water storage tank, of the inner wall of the well lid body. According to the sewage well lid capable of changing the hole diameter according to the rainwater flow, through cooperative use of an electromagnet and a magnetic block, when accumulated water is increased, the magnetism of the electromagnet is gradually increased, due to the fact that the magnetism of the inner side of the magnetic block is opposite to the magnetism of the outer side of the electromagnet, the magneticblock can drive a blocking block to move inwards under the magnetic attraction effect of the electromagnet; therefore, the diameter of a drainage hole is changed along with the accumulated water amount, the drainage amount is effectively changed, and the accumulated water problem is effectively solved.

Description

technical field [0001] The invention relates to the technical field of well covers, in particular to a sewage well cover whose aperture can be changed according to the flow of rainwater. Background technique [0002] Manhole covers are used to cover roads or deep wells at home to prevent people or objects from falling. According to the material, they can be divided into metal manhole covers, high-strength fiber cement concrete manhole covers, and resin manhole covers. They are generally round and can be used for green belts, sidewalks, motorways, Most of the current manhole covers are fixed in shape for docks, alleys, etc., and some problems will be encountered during use, which will reduce the practicability of the manhole covers. [0003] During the use of the current manhole cover, it is often difficult to discharge the accumulated water in time, resulting in serious water accumulation on the road. This is because the leakage hole of the manhole cover prevents the smell o...

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Problems solved by technology

[0003] During the use of the current manhole cover, it is often difficult to discharge the accumulated water in time, resulting in serious water accumulation on the road. This is because the leakage hole of the manhole cover prevents the smell of the sewer from spreading upward, so the diameter of the manhole cover is small, but it is The slow drainage of accumulated water leads to the increase of accumulated water, which affects the driving of vehicles on the road and causes traffic jams

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