Double outburst prevention damper capable of conveniently controlling air volume

Abstract

The invention discloses a double outburst prevention damper capable of conveniently controlling air volume. The double outburst prevention damper comprises a lower frame and an installation plate, an installation cavity is reserved in the lower frame, movable door bodies are installed in the installation cavity in a clamping mode, the upper ends of the movable door bodies are provided with connection plates, the internal sides of the connection plates are provided a gear plate, the installation plate is fixed at the top end of the lower frame by welding, the middle part of the installation plate is provided with a driving motor, an upper frame is fixedly welded to the upper surface of the installation plate, the front and back ends of linkage plates are correspondingly hinged to the inner ends of connection rods, and the outer ends of the connection rods are hinged to adjusting plates. According to the double outburst prevention damper capable of conveniently controlling the air volume, the air volume can be effectively controlled, use is convenient, through the design of the double movable door bodies, the movable door bodies can also complete isolation operation of the front and back spaces of the lower frame when serious deformation occurs due to explosion impact, and the dangerous range is effectively limited.

Description

technical field [0001] The invention relates to the technical field of anti-draft doors, in particular to a double anti-draft door which facilitates the control of air volume. Background technique [0002] The anti-sudden door is a kind of isolation equipment used to ensure the safety of operation in coal mining. The anti-sudden door can effectively reduce the problem of high-density accumulation of gas and reduce the occurrence of operational accidents. There are various anti-sudden doors currently used. But there are still deficiencies; [0003] For example, the anti-shock doors currently used cannot effectively control the air volume, are not convenient to use, and are mostly designed for layered movable doors. When the movable door body is severely deformed when it is impacted by an explosion, it cannot complete the isolation of the space on the front and rear sides of the lower frame. Therefore, the object of the present invention is to provide a double anti-draft door...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a double anti-draft door that is convenient to control the air volume, so as to solve the problem that the currently used anti-draft door proposed in the above background technology cannot effectively control the air volume, is not convenient to use, and most of them are layered movable doors. When the mobile door body is severely deformed by the impact of the explosion, it cannot complete the isolation operation of the space on the front and rear sides of the lower frame, and cannot play a role in limiting the dangerous range.

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