A mine-used non-powered automatic closing damper

Abstract

The embodiment of the present invention discloses a non-power automatic closing air door for mining, which includes two main air doors that cooperate with each other and are hinged on two side walls of a roadway structure through main hinges, and auxiliary air doors are hinged on the main air doors through auxiliary hinges. , the auxiliary air door is provided with a start handle, the auxiliary air door is an upright right-angled trapezoid with a narrow upper and a lower width, and the auxiliary air door is tilted and pivoted with the inclined side of the right-angled trapezoid as the door axis, and the auxiliary air door There is a counterweight block at the vertical door corner of the door, the structure of the present invention is simple, and there is no special reset structure, which avoids the disadvantages of the failure of the reset structure of other technical methods; the sealing gasket with the misaligned sharp corners is used to achieve sealing, even if the door frame is deformed, etc. It is still ensured that there is no air leakage at the bottom, and the automatic closing of the mine air door is realized.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of mine damper devices, in particular to a mine-used unpowered automatic closing damper. Background technique [0002] Mine ventilation is an important part of mining operations. Ventilation structures are important regulating devices in mine ventilation systems, and dampers are the most commonly used facilities in ventilation structures. Therefore, the reliability of damper operation has an extremely important impact on underground production and personnel safety. The commonly used air door has automatic opening / closing type and manual type. In order to facilitate the passage of personnel, an auxiliary air door is specially designed on the main air door, through which the workers can travel between the roadways, thereby reducing the loss of air volume when people pass. The automatic damper is controlled by driving elements such as motor, pneumatic or hydraulic, and the structure is r...

AI Technical Summary

Problems solved by technology

[0004] For this reason, the embodiment of the present invention provides a mine-used non-powered automatic closing damper to solve the problems in the prior art that the damper cannot be closed, or the closure is not tight, and it is difficult to close automatically without power.

Images