Rubber sleeve protective cover of coal seam water injection hole packer

The utility model relates to a rubber sleeve protection cover of a coal seam water injection hole packer, which comprises a central circular ring sleeved at two ends of a rubber sleeve, and a plurality of plane protection sheets and a plurality of curved surface protection sheets for protecting two...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SHEN JIANXIANG, ZHAO QING, LUO MINGKUN, JIA GONGJIE, HAO YUAN, QIN GUICHENG, LI HUAN, ZHANG JIHU, CHANG PENG, ZHANG BAO
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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Beschreibung
Zusammenfassung:	The utility model relates to a rubber sleeve protection cover of a coal seam water injection hole packer, which comprises a central circular ring sleeved at two ends of a rubber sleeve, and a plurality of plane protection sheets and a plurality of curved surface protection sheets for protecting two end edges of the rubber sleeve and preventing the rubber sleeve from being damaged by friction, the plurality of plane protection sheets are sequentially arranged around the central circular ring in a circular shape, one end of each plane protection sheet is rotationally connected with the outer circle of the central circular ring, the other end of each plane protection sheet is rotationally connected with a curved surface protection sheet, and the plurality of curved surface protection sheets are sequentially overlapped in a circular shape. The hole packer is not prone to being damaged by friction in the process of drilling, retreating and setting of the rubber sleeve, the number of times of use of the hole packer