Mine explosion-proof pressure-resistant door

Abstract

The invention relates to a mine explosion-proof pressure-resistant door which comprises a door frame and a door leaf, wherein the door leaf is arranged in the door frame; reinforcing rib plates are longitudinally and transversely arranged on the door leaf; sealing strips are arranged around the door leaf; a hand wheel mechanism is arranged on the door leaf; and the structure of the hand wheel mechanism is as follows: a mounting hole is formed on the door leaf; a copper sleeve is arranged on the mounting hole; a shaft sleeve is arranged on the periphery at the two ends of the copper sleeve respectively; the shaft sleeves are connected with the door leaf; a rotation shaft is sleeved in the shaft sleeve; and a pinion and a hand wheel are mounted on the rotation shaft respectively. The mine explosion-proof pressure-resistant door provided by the invention has reasonable structure and reliable performance, realizes various functions through a locking mechanism, a connecting rod mechanism and a hand wheel mechanism independently, and greatly improves the working efficiency, reliability and safety degree so that a cabin door can be started and closed in the shortest time when a safety accident happens to a coal mine.

Description

technical field [0001] The invention relates to the field of coal mine safety equipment, in particular to an explosion-proof and pressure-resistant mine door. Background technique [0002] The death toll of mine accidents in my country accounts for 4 / 5 of the death toll of coal mine accidents in the world. Frequent mine accidents not only cause family breakdown, but also cause huge loss of life and property to the country and society. When a mine disaster occurs, due to the harsh underground environment, it is easy to cause dangers such as gas leakage or explosion, and it is almost impossible for underground personnel to escape from the danger zone by themselves and go up the shaft safely. In order to provide a better shelter for the trapped underground miners, mine rescue cabins and refuge chambers have been designed. The hatch door is a very important part in the rescue chamber and refuge chamber. In the direct part where the air is disturbed by the outside world, if the ...

AI Technical Summary

Problems solved by technology

In order to provide a better shelter for the trapped underground miners, mine rescue cabins and refuge chambers have been designed. The hatch door is a very important part in the rescue chamber and refuge chamber. In the direct part where the air is disturbed by the outside world, if the outside of the cabin door is not easy to open, the inside is not easy to lock, the opening and locking time is long, the cabin door is easy to loose after the gas explosion, and the sealing is poor, etc. The environment is affected, and people hiding in cabins and refuge chambers waiting for lifesaving are not protected, which directly affects the life safety of underground personnel

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