[Invention Announcement] A rock geological drill bit designed to reduce deviation

Application Publication Number:CN112211563A
Application Publication Date:2021.01.12
Application Number:2020109501985
Application Date:2020.09.11
Applicant:Qidong County Fengsu Drilling Tools Co., Ltd.
Inventors:Li Xiaohuan; Li Zhongyong; Chen Shuncheng
Address:No. 101 Baihe Group, Baijia Village, Baihe Street Office, Qidong County, Hengyang City, Hunan Province 421600
Classification Number:E21B10/55(2006.01)I;

Abstract:
The invention provides a rock geological drill bit designed to reduce deviation, related to the field of drill bits. The drill bit includes a body with a protective cylinder at the top, capped with a ring plate that supports a fixed cone. The inner wall of the protective cylinder has a locking plate, which is fixedly connected to one end of a positioning cylinder away from the cylinder. The other end of the positioning cylinder is fixedly connected to one end of a shock-absorbing spring rod, with the opposite end of the spring rod fixedly connected to the side of a connecting plate. The side of the connecting plate away from the spring rod is fixedly connected to the outer side of a shock-absorbing ring, which is movably connected to the outer side of a threaded drill rod. The coordination of two shock-absorbing spring rods with the positioning cylinder increases the rotational stability of the drill bit.