Bridge cast-in-place pile drilling precision control device

• Main Authors: ZHAO ZEZHENG, BAO YUYANG
• Format: Patent
• Language: Chinese; English
• Published: 03.12.2021
• 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

The utility model provides a bridge cast-in-place pile drilling precision control device. The bridge cast-in-place pile drilling precision control device comprises a left telescopic air cylinder, a right telescopic air cylinder, a transverse frame plate, a first top plate, a sliding sleeve, a hydraulic air cylinder and an outer protection cylinder structure. The left telescopic air cylinders are arranged on the front portion and the rear portion of the left side of the drill rod structure, first upper fixing plates are arranged at the upper ends of the left telescopic air cylinders, and a first connecting base is installed between the front first upper fixing plate and the rear first upper fixing plate. Right telescopic air cylinders are arranged on the front portion and the rear portion of the right side of the drill rod structure, second upper fixing plates are arranged at the upper ends of the right telescopic air cylinders, and a second connecting base is installed between the front second upper fixing pl