Ventilation wall for coal mine gas control
The utility model relates to the technical field of ventilation walls, in particular to a ventilation wall for coal mine gas control, which comprises a wall body, the wall body comprises an ore body, the inner side of the ore body is fixedly connected with a wall surface, the inner side of the wall...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model relates to the technical field of ventilation walls, in particular to a ventilation wall for coal mine gas control, which comprises a wall body, the wall body comprises an ore body, the inner side of the ore body is fixedly connected with a wall surface, the inner side of the wall surface is provided with a door frame, and the inner side of the door frame is movably connected with a ventilation door. The first rubber pad is fixedly connected to the surface of the air door, when the air door is closed, the two ends of the air door can be tightly attached to the inner wall of the door frame through the first rubber pad, the sealing effect is achieved, meanwhile, the moving block is made to move by rotating the threaded rod to extrude the push rod, and the sealing effect is achieved. When the air door is closed, a push rod can achieve the effect that a connecting rod drives a second rubber pad to move from the middle to the two ends under the action of a moving block, so that the second rubber |
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