Drill rod

• Main Authors: JIANG YONGBIN, LI KEXIANG, WU BEN, SHENG ZHUWEN, SUN FULONG, SUN JING, YU JUNKE, YANG JIAN, CHEN CUNQIANG, ZHANG BEINING, GUO JIANZHONG, ZHANG MAOYUAN
• Format: Patent
• Language: Chinese; English
• Published: 26.08.2022
• 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 invention provides a drill rod, relates to the technical field of drilling equipment, and aims to solve the problem of hole collapse or blockage caused by the fact that the wall of a drilled hole is easy to break at present. The drill rod comprises a drill rod body, a twist thread and an extrusion ball hammer, the twist thread is fixedly arranged on the outer surface of the drill rod body in a surrounding mode, the extrusion ball hammer is fixedly arranged on the outer surface of the drill rod body and protrudes out of the twist thread in the radial direction of the drill rod body, the extrusion ball hammer comprises a plurality of ball hammer parts, and the ball hammer parts are arranged in the axial direction of the drill rod body. The multiple ball hammer parts are further arranged in the circumferential direction of the drill rod body at the same time, and the multiple ball hammer parts jointly form a complete circular contour in the axial projection direction of the drill rod body. According to the m