Mining safety air door

The utility model provides a mining safety air door which comprises a bottom plate, front side plates arranged on the two sides of the bottom plate, a rear side plate arranged behind the front side plates, a bottom frame arranged in the middle of the bottom plate, a top frame arranged on the side pl...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TANG JIANHUA, TANG MAOHUA, CHEN HUILING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHECKS FOR WINGS DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION EARTH DRILLING FIXED CONSTRUCTIONS KEYS LOCKS MINING SAFES SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS WINDOW OR DOOR FITTINGS WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING
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Beschreibung
Zusammenfassung:	The utility model provides a mining safety air door which comprises a bottom plate, front side plates arranged on the two sides of the bottom plate, a rear side plate arranged behind the front side plates, a bottom frame arranged in the middle of the bottom plate, a top frame arranged on the side plates and an air door closing structure arranged on the bottom frame and the top frame. The bottom frame and the top frame are arranged between the front side plate and the rear side plate; the air door closing structure comprises a guide rail arranged in the bottom frame, a sliding block arranged on the guide rail, a motor arranged on the top frame, a lead screw arranged on the motor, a lead screw ball nut arranged on the lead screw, a door plate arranged on the lead screw ball nut and a top air baffle arranged on the front side of the top frame, and the door plate is located on the rear side of the air baffle. The height of the door plate is larger than the height between the bottom frame and the top frame, and th