A safe overflow-proof manhole cover

Abstract

The invention discloses a safe and overflow-proof manhole cover, which relates to the field of municipal construction, and comprises a top cover, a support device is arranged under the top cover, two drain holes are opened through the top cover, and the bottom end of the top cover is located at the bottom of the drain The hole is fixedly connected to the water pipe, and the water pipe is provided with an anti-overflow mechanism. And the water outlet chambers are arranged and communicated sequentially from top to bottom, the connection between the water inlet chamber and the middle chamber is provided with a first flow port, the connection between the water outlet chamber and the middle chamber is provided with a second flow port, the A floating ball is arranged in the middle cavity. The present invention can provide multi-point support for the top cover by setting the supporting device, so that the manhole cover has double protection functions, and can effectively prevent the water in the sewer from overflowing back to the road surface by setting the anti-overflow mechanism under the condition of satisfying the drainage of the road surface On the road, improve the safety and sanitation of the road.

Description

technical field [0001] The invention relates to the field of municipal construction, in particular to a safe and overflow-proof manhole cover. Background technique [0002] There will be many underground pipelines in urban construction, such as sewers, underground gas pipelines, communication pipelines, power pipelines, etc. In order to maintain these pipeline facilities, an outlet to the ground will be arranged on the lines of these pipelines at every other end distance , This section is called the inspection shaft from the pipeline to the ground. The mouth of the inspection well is usually flush with the ground, so a cover is needed to cover the inspection well, which is called the inspection well cover. Manhole covers are usually made of reinforced concrete, metal, reinforced plastics and other materials, and their shapes are based on circles and squares. On the inspection well cover, it is generally necessary to indicate the purpose of the underground pipeline, the man...

AI Technical Summary

Problems solved by technology

However, after the manhole cover is impacted from above the ground or pressed by the car, it cannot release force due to being fixed and stuck, which will easily lead to damage to the manhole cover. If the gas is too strong, the downhole gas will easily generate strong air pressure if it cannot escape, which will easily lead to explosions, and the safety is not high enough.

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