Lifting buffering self-restoring anti-explosive door of vertical shaft

Abstract

The invention discloses a lifting buffering self-restoring anti-explosive door of a vertical shaft, relating to ventilating safety facilities of a mine, and solving the problem that the anti-explosive door of current mineral air shaft is easy to damage to influence the safety when exploding. The lifting buffering self-restoring anti-explosive door is characterized in that two guiding columns are uprightly fixed to two sides of a door frame, respectively; two guiding columns are respectively composed of upright rods, nuts and springs; springs are respectively sleeved outside two upright rods; the nuts are arranged on the top of the upright rod to contact with the spring; the lower ends of two upright rods are respectively sleeved with upright barrels extended from two ends of a buffering seat; the door frame is integrally connected with the buffering seat through the nuts; a door leaf is placed on the door frame, and arranged on the buffering seat; a buffering plate provided with a plurality of buffering blocks at two sides respectively is fixed to the upper part of the buffering seat. The lifting buffering self-restoring anti-explosive door disclosed by the invention is applied to the mineral air shaft to remove the influence to the safety of the anti-explosive door, and has the advantages of simple structure, safety and reliability.

Description

technical field [0001] The invention relates to coal mine ventilation safety facilities, in particular to a coal mine shaft and a buffer explosion-proof door whose door leaf can rise with the buffer seat. 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 can be reset in time for coal mine ventilation shafts. ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the disadvantages of the prior art, provide a self-resetting explosion-proof door for shaft rising buffer, and solve the problem that once an explosion occurs in an existing coal mine air shaft, the explosion-proof door is easily damaged and cannot be reset in time, so that the underground ventilation cannot be restored as soon as possible. security risks

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