Explosion-proof cover structure for coal mine air shaft and capable of releasing shock waves conveniently

Abstract

The invention discloses an explosion-proof cover structure for a coal mine air shaft and capable of releasing shock waves conveniently. The explosion-proof cover structure comprises an explosion-proofcover body, a protective blocking cover, a fixed annular plate and vertical plates, an inner cover plate body is arranged on the inner side wall of the explosion-proof cover body in an attached manner, first exhaust grooves are formed in the periphery of the inner cover plate body at equal distance, and second exhaust grooves are formed in the inner side wall of the explosion-proof cover body; and a vertical rod is connected in the top end of the explosion-proof cover body in a bearing penetrating manner, the inner cover plate body is fixed to the bottom end of the vertical rod through a screw in a penetrating manner, first mounting grooves and containing grooves are formed in the outer side face of the explosion-proof cover body, and the containing grooves are formed in the upper ends and the lower ends of the first mounting grooves. The explosion-proof cover structure for the coal mine air shaft and capable of releasing shock waves conveniently is provided with the inner cover platebody, so that the first exhaust grooves and the second exhaust grooves are overlapped in a one-to-one correspondence manner for exhausting work, the traditional manner of moving the whole explosion-proof cover body upwards is replaced, and the phenomenon that the explosion-proof cover body cannot be reset in the later period is avoided.

Description

technical field [0001] The invention relates to the technical field of coal mine mining, in particular to an explosion-proof cover structure for a coal mine wind shaft which is convenient for releasing shock waves. Background technique [0002] With the continuous development of science and technology, our demand for energy is also increasing. Therefore, it is necessary to mine and utilize coal mines. When mining coal mines, it is necessary to install explosion-proof covers or explosion-proof doors on the wellhead of the mine return air shaft as explosion-proof facilities. When a gas or coal dust explosion occurs underground, the explosion-proof cover can be opened automatically by the impact of high-pressure air waves, so as to protect the main fan from damage and facilitate the release of shock waves. Although the explosion-proof cover structure for coal mine air shafts on the market There are many types, but there are still some shortcomings in use, such as: [0003] 1. ...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a kind of explosion-proof cover structure for coal mine wind shaft that is convenient to release the shock wave, to solve the problem that the explosion-proof cover on the market currently on the market moves upwards under the action of the shock wave proposed by the above-mentioned background technology, which causes the explosion-proof cover to be unable to reset like this, and the explosion-proof When the cover is reset, it needs to be realized by adjusting the counterweight device composed of multiple hammers, and the operation is more complicated.

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