Auxiliary device for salvaging rock core underground

• Main Authors: GONG FUZHU, DUAN MIAOMIAO, SUN YONGNING, GUO QUAN
• Format: Patent
• Language: Chinese; English
• Published: 24.11.2020
• 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 provides an auxiliary device for salvaging a rock core underground. The device comprises a connecting frame, the connecting frame comprises a base and a connecting part connected tothe base. The connecting part is used for being connected with an underground drill rig, a through hole is formed in the base, the supporting column penetrates through the through hole, the position of the supporting column in the through hole is adjustable, the supporting column can be fixed to the base through the locking and stopping structure, and a pulley is arranged on the supporting column,movably connected with the supporting column and can only rotate relative to the supporting column. The device further comprises at least one direction pulley, each direction pulley corresponds to one anchor rod, the direction pulleys and the corresponding anchor rods are connected together through connecting ropes, and each anchor rod is used for being fixed to the wall of a chamber or a roadway. During use, the steel wi