A Pneumatic Interlock Closing Device for Anti-Sudden Reverse Damper
A closing device and damper technology, which is applied in wing closers, door/window fittings, ventilation of mines/tunnels, etc., can solve problems such as gas ejection, damper not being able to close automatically, life safety threats to coal miners, etc.
Inactive Publication Date: 2021-09-03
杜军亭
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Problems solved by technology
Coal mine underground workers often use stones or sticks to hold the reverse damper when using the damper. This method cannot keep the damper open or closed stably, and the staff often forget to close the damper due to negligence, and the damper cannot be closed automatically. When blasting, a large number of shock waves will gushes out from the damper, and when a gas outburst accident occurs, a large amount of gas will be ejected, posing a threat to the life safety of coal miners
Method used
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[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0028] see Figure 1-6 , a wind-operated chain closing device for anti-sudden reverse damper, comprising a door frame 1, a damper 3 and a wind-sensing electric fan 7, the wind-sensing electric fan 7 is fixedly connected to the inner top wall of the door frame 1 through a connecting plate 9, and the connecting plate 9 has two , two connecting plates 9 are symmetrically distributed on both sides of the wind-sensing electric fan 7, one end of the damper 3 is fixe...
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The invention discloses an anti-slip reverse air door pneumatic interlocking closing device, which relates to the technical field of coal mine air doors, comprising a door frame, an air door and a wind-sensing electric fan. By setting the wind-sensing electric fan in the present invention, if the air door is not closed when a gun is fired or a gas outburst accident occurs in the mine, the air passing through the door frame can be used to drive the inner fan blades of the wind-sensing electric fan to rotate, so that the rotating shaft can be rotated and the pressure rod can be moved by the pulling rope. Pull, so as to bend the limit ejector rod, so that the damper can be automatically closed under the action of the door closing spring. The arc guide rod fixes the position of the damper, so that the damper remains stable when it is opened, and the closing spring always provides the closing force of the damper to keep the damper in the closed state.
Description
technical field [0001] The invention relates to the technical field of coal mine air doors, in particular to a pneumatic interlocking closing device for an anti-sudden reverse air door. Background technique [0002] Coal and gas outburst is an extremely complex dynamic phenomenon that occurs in the underground production process of coal mines. It can suddenly eject a large amount of coal and gas from the coal body to the roadway or stope in a short period of time. It caused a very huge dynamic effect. It is the most serious gas disaster after the gas explosion, and it is the result of the joint action of ground stress and gas pressure. Coal and gas outburst disasters are extremely destructive, mainly manifested in: (1) The ejected gas ranges from hundreds to tens of thousands of square meters, filling the wells with gas and causing suffocation of people; Tens of tons to tens of thousands of tons, causing coal flow to bury people; (2) The large amount of high-pressure gas fl...
Claims
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IPC IPC(8): E21F1/12E05C17/12E05F1/12
CPCE21F1/12E05C17/12E05F1/1207E05Y2999/00
Inventor 王俊有李晓杜军亭高金晓卫丹黄旭东李碧林李国营李志厚齐云龙李万里侯恒元徐永光谢卡子
Owner 杜军亭