Underground air door blocking device

The utility model relates to a mine mechanical equipment field especially relates to an underground air door blocking device, including setting up the base between first air door and second air door,first telescoping device and second telescoping device, first telescoping device and second telescopi...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHANG ZHANYUAN, YANG GUANG, CAO JINGSONG, SUN HEQUAN, WANG CHUNPO, ZHANG JIANJUN, ZHANG FENGFU, WANG JIANBIN, WANG ZHIZHONG, YAN JINGYI, FAN QINGJUN, YU PINGHENG, ZHAO GUANGFU, TANG DONGBAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS MINING SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS
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