Combined drill bit for rectangular anti-slide pile construction

• Main Authors: NIU HU, HAI YONGZHENG, SONG HUAZONG, ZENG JIANMIN, HE YANQIANG
• Format: Patent
• Language: Chinese; English
• Published: 19.04.2024
• 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 discloses a rectangular anti-slide pile construction combined drill bit which comprises a rotary excavating drill connecting piece, a cutting piece and an assembling structure, the rotary excavating drill connecting piece comprises a rectangular box body and a connecting shaft rotationally installed on the inner wall of the rectangular box body, and a driving structure capable of driving the connecting shaft to rotate is arranged in the rectangular box body. The cutting piece comprises a disc and a connecting ring fixedly installed at one end of the disc, and a first drill bit and a second drill bit are fixedly installed on the outer ring face of the connecting ring and the outer ring face of the disc respectively. According to the rotary drilling machine, the rotary drilling connecting piece and the cutting piece are arranged, the rectangular box body is connected with an external rotary drilling rod, then the driving structure drives the connecting shaft to rotate, and therefore the cuttin