Vertical air shaft explosion protection door capable of quickly resetting

Abstract

The invention discloses a vertical air shaft explosion protection door / cover capable of quickly resetting, belonging to a coal mine ventilation safety facility. The vertical air shaft explosion protection door is mainly composed of a door body 2, a heavy punch part, an inverted ventilation lock catch device and an oiling small shaft, wherein multiple groups of heavy punch assemblies of the heavy punch part are variable quality tank heavy punch assemblies 4 or variable quality tanks 19, and the variable quality tank heavy punch assemblies 4 or the variable quality tanks 19 are connected with the explosion protection door body 2 by a steel wire rope 7 and a pulley block 8; the variable quality tanks 19 are liquid storage tanks and are connected with a water supply by a water inlet and outlet pipe 13; and water reserve in the variable quality tanks is increased or reduced to replace the action of increasing or reducing the number of the weight, thus controlling the weight of the heavy punch assembly. The explosion protection door is also provided with the quick inverted ventilation lock catch device 1 and a stable synchronous elevator mechanism. The explosion protection door adopts mechanical operation to realize remote monitoring of the latch and the reset of the explosion protection door, changes outdoor operation into indoor operation, has the advantages of high resetting and latching speed, time and labour saving and safe operation, lightens physical work and improves the coal mine ventilation safety.

Description

technical field [0001] The invention relates to a vertical wind shaft explosion-proof door of a ventilation safety facility in a coal mine, in particular to a vertical wind shaft explosion-proof door capable of quick reset and locking. Lifeng shaft explosion-proof door is also called Lifeng shaft explosion-proof cover. Background technique [0002] The explosion-proof door of Lifengshaft is an important facility for coal mine ventilation safety. Its functions are as follows: ①When a gas or coal dust explosion occurs underground, it will be automatically opened under the impact of high-pressure air waves to protect the main ventilator from damage. ② Under normal circumstances, the explosion-proof door cover is airtight at the wellhead of the vertical wind shaft to prevent short circuit of the wind flow. ③When the main ventilator fails, increase the weight of the hammer group, pull up the explosion-proof door to reach the design height of 1.5m, and open the wellhead of the v...

AI Technical Summary

Problems solved by technology

[0012] In order to overcome the deficiencies of the existing vertical wind shaft explosion-proof door, which are difficult to reset, time-consuming, employing many people, and slow, the invention provides a fast-reset vertical wind shaft explosion-proof door, which can realize the mechanical operation and operation of the explosion-proof door reset. Remote control, fast speed, save time and labor, safe operation, reduce physical labor

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