Ejection-proof slip device

The utility model discloses an ejection-proof slip device, which comprises an ejection-proof joint and a pressure plate, wherein the pressure plate sleeves on the upper part of the ejection-proof joint; inner threads are formed on the upper part of the ejection-proof joint, and outer threads are for...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WANG SHUQIANG, QI SHENGPING, CHEN CHEN, FAN CHAOPENG, WU YICHEN, LI NING, JIA ZUOMIN, FU YONGHUA, QU DENGHUI, ZHANG ZHIYUAN, HUANG QIU, XU JING, WANG ZHAOQING, CHEN JUNJIE, YU YABO, SUN TONGTONG, HAN YAOLONG, SUN HE, CHEN GUO, FU LIANBIN
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 discloses an ejection-proof slip device, which comprises an ejection-proof joint and a pressure plate, wherein the pressure plate sleeves on the upper part of the ejection-proof joint; inner threads are formed on the upper part of the ejection-proof joint, and outer threads are formed on the lower part of the ejection-proof joint; an annular boss is arranged on the ejection-proof joint; a screw rod hole is formed in the two ends of the pressure plate respectively; screw rods are connected with a flange of a spray-proof device through the screw rod holes; the lower end of the ejection-proof joint is tightened with the outlet of the spray-proof device; a plug valve is arranged at the upper end of the ejection-proof joint, and is tightened with an oil outlet pipe in order to fix the oil pipe to the flange of the spray-proof device. By adopting the ejection-proof slip device, the oil pipe is effectively prevented from being ejected upwards, the labor intensity and the working risk are lowered, t