Water stop device for hydrogeological drilling and water pumping

• Main Authors: YAN SHAOLI, LI XIAOZHEN, YIN TAICHUANG, HE SHIDA
• Format: Patent
• Language: Chinese; English
• Published: 02.09.2022
• Subjects: 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

The utility model relates to the field of water stops, in particular to a water stop for hydrogeological drilling and water pumping. The water stop device for hydrogeological drilling and water pumping comprises a water stop device telescopic pipe, the water stop device telescopic pipe comprises a first telescopic pipe, a telescopic sliding groove, a second telescopic pipe and a protective filter screen, the telescopic sliding groove is formed in the first telescopic pipe, and the second telescopic pipe is slidably connected to the inner wall of the telescopic sliding groove; and the inner wall of the second telescopic pipe is fixedly connected with a protective filter screen, a transmission mechanism, a shunting opening and closing mechanism and a connecting mechanism. According to the water stop device for hydrogeological drilling and water pumping, the water stop device telescopic pipe, the transmission mechanism, the flow dividing opening and closing mechanism and the connecting mechanism are installed, s