Hole packer suitable for underground gas drainage

• Main Authors: GAO JING, CHEN YING, JIANG HUI, GAO LAISHENG, GAO YIZHENG, WANG CHANGSHUN
• Format: Patent
• Language: Chinese; English
• Published: 24.12.2021
• 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; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS

The hole packer comprises a base, the upper surface of the base is fixedly connected with a supporting block, the upper surface of the supporting block is provided with a sliding hole, the inner wall of the sliding hole is connected with a sliding plate in a sliding mode, the inner bottom wall of the sliding hole is provided with a fixing groove, and the sliding plate is connected with the fixing groove in a sliding mode. An electric hydraulic rod is fixedly connected to the inner bottom wall of the fixing groove, a connecting column is fixedly connected to the telescopic end of the electric hydraulic rod, the top end of the connecting column is fixedly connected with the bottom face of a sliding plate, a fixing base is fixedly connected to the upper surface of the sliding plate, and the bottom face of the fixing base makes contact with the upper surface of a supporting block. And two clamping holes are formed in the upper surface of the fixed seat. According to the hole packer suitable for underground gas dr