Coal seam drilling pressure-maintaining sampling device

The utility model discloses a coal seam drilling pressure maintaining sampling device which comprises an outer cylinder assembly and an inner cylinder assembly, and the inner cylinder assembly is arranged in the outer cylinder assembly and can slide relative to the outer cylinder assembly. The outer...

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG HUIGAI, ZHANG PENGWEI, WANG GUANGSEN, ZHAO ZHENQU, XING YONGHE, ZHANG JUNFENG, WANG BINBIN, ZHANG YIN, MA ZHIJIE, WANG CHENHUI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
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Beschreibung
Zusammenfassung:	The utility model discloses a coal seam drilling pressure maintaining sampling device which comprises an outer cylinder assembly and an inner cylinder assembly, and the inner cylinder assembly is arranged in the outer cylinder assembly and can slide relative to the outer cylinder assembly. The outer cylinder assembly comprises a drilling sampling mechanism, an outer cylinder body and an outer cylinder joint, the drilling sampling mechanism is arranged at the front end of the outer cylinder body, and the outer cylinder joint is arranged at the rear end of the outer cylinder body; the inner cylinder assembly comprises a sample storage mechanism, a ball valve mechanism and a control execution mechanism; the sample storage mechanism comprises an inner cylinder body and an inner cylinder joint; the ball valve mechanism is arranged at the front end of the inner cylinder body; the control execution mechanism is arranged at the rear end of the sample storage mechanism and is connected with the inner cylinder body thr