Gas buffer explosion-proof door

Abstract

The invention provides a gas buffer explosion-proof door and provides an active safety facility for a ventilation system of a coal mine. The gas buffer explosion-proof door comprises two door leaves, door frames and a hinge, and is characterized by further comprising counterweight devices, steel wire ropes, buffer seats, buffer blocks and gas buffer devices, wherein the counterweight devices are arranged on the side ground outside the door frames and connected with the door leaves through the steel wire ropes; the buffer seats are arranged on the side walls outside the door frames; the buffer blocks are arranged on the outer surfaces of the door leaves and correspond to the positions of the buffer seats; and each gas buffer device comprises a hinge seat and a gas buffer cylinder, the hinge seats are arranged on the side walls in the door frames and the gas buffer cylinders are hinged with the door leaves. The gas buffer explosion-proof door is simple in structure, safe and reliable, and can be reset fast, fast restore the ventilation system, enable the rescue and relief time to be advance, reduce casualties and reduce the loss caused by accidents, thus the explosion-proof performance and safety action of the explosion-proof door are greatly improved.

Description

technical field [0001] The invention belongs to coal mine ventilation safety facilities, in particular to an explosion-proof door with gas buffering function for coal mine air shafts. Background technique [0002] The explosion-proof door of the wind shaft in the existing coal mine ventilation safety facilities is a general steel structure explosion-proof door. Once an underground explosion occurs in a coal mine, the explosion-proof door is easily damaged or flies away from the wellhead. It cannot be reset, which will cause the coal mine to be unable to restore ventilation in a short period of time, so that harmful gases cannot be discharged, causing rescue personnel to lose rescue time, and also seriously endangering the life safety of coal mine workers, resulting in accidents. Disaster spread. For this reason, coal mines urgently need to research and develop more safe explosion-proof doors that are not damaged under the impact of underground explosions and can be reset in...

AI Technical Summary

Problems solved by technology

[0002] The explosion-proof door of the wind shaft in the existing coal mine ventilation safety facilities is a general steel structure explosion-proof door. Once an underground explosion occurs in a coal mine, the explosion-proof door is easily damaged or flies away from the wellhead. It cannot be reset, which will cause the coal mine to be unable to restore ventilation in a short period of time, so that harmful gases cannot be discharged, causing rescue personnel to lose rescue time, and also seriously endangering the life safety of coal mine workers, resulting in accidents. disaster expansion

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