Hydraulic flexible pipe pushing device of coal mine underground directional long drill hole peeping instrument

The utility model provides a hydraulic flexible pipe pushing device of an underground coal mine directional long drill hole peeping instrument, which relates to the field of underground coal mine directional drill hole peeping and comprises a drill hole peeping instrument, a pressure-resistant expan...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WANG ZHENNING, GUO KAIQI, WANG XIANGYU, YANG KAI, ZHAI DANGSHUAI, TIAN JUNBAO, YANG FAN, WANG QIAN, WANG DONGPING, NI YAJUN, LI XIAOPENG, ZHAO JIAXIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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