DRILLING APPARATUS FOR GEOTECHNICAL ENGINEERING INVESTIGATION

WIPO Patent Application WO/2023/142542

A1

Disclosed is a drilling apparatus for geotechnical engineering investigation, comprising an outer supporting ring seat (1). The center of the outer supporting ring seat is rotatably connected to a middle supporting ring seat (2) by means of a provided first supporting shaft rod (4), the center of the middle supporting ring seat is rotatably connected to an inner supporting ring seat (3) by means of a provided second supporting shaft rod (5), and the first supporting shaft rod and the second supporting shaft rod are arranged to intersect perpendicularly. A second rotating motor (7) is fixedly mounted at one end of the outer side face of the outer supporting ring seat on the first supporting shaft rod. A power output end of the second rotating motor is fixedly connected with the first supporting shaft rod, and a locking mechanism used to limit a position is provided at the other end of the first supporting shaft rod. The drilling apparatus may achieve multi-angle position limitation of a drill rod, and may also limit the drill rod at a specified drilling position. It is suitable for various drilling situations, has a wide application range, and is convenient for popularization.

SONG YU (CN)
ZHANG MINGZHI (CN)
LI JUN (CN)
GAN XIAOHUI (CN)
LI HUI (CN)
WANG JIANQIANG (CN)
GENG YUKUN (CN)
DONG SHUAISHUAI (CN)
DING SONG (CN)

PCT/CN2022/125916

August 03, 2023

October 18, 2022

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UNIV GUILIN TECHNOLOGY (CN)

E21B7/04; E21B15/04; E21B17/00

CN114482859A	2022-05-13
CN113863869A	2021-12-31
CN212337176U	2021-01-12
CN207212268U	2018-04-10
CN112324355A	2021-02-05
RU2401376C1	2010-10-10

BEIJING SHENGXUN IP AGENT LLC (CN)

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