The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 17, 2023
Filed:
Nov. 12, 2018
Shenzhen University, Guangdong, CN;
Sichuan University, Sichuan, CN;
Mingzhong Gao, Sichuan, CN;
Ling Chen, Sichuan, CN;
Heping Xie, Sichuan, CN;
Zhilong Zhang, Sichuan, CN;
Jun Guo, Sichuan, CN;
Zetian Zhang, Sichuan, CN;
Ru Zhang, Sichuan, CN;
Yiqiang Lu, Sichuan, CN;
Cong Li, Sichuan, CN;
Zhiqiang He, Sichuan, CN;
SHENZHEN UNIVERSITY, Guangdong, CN;
SICHUAN UNIVERSITY, Sichuan, CN;
Abstract
A drilling control mechanism of a core drilling rig has a tooth drill and a core drilling rig. The core drilling rig is inside the tooth drill and engages with the drill in a sliding manner. A locking recess is formed at an inner wall of the tooth drill. A locking latch recess is formed at an outer wall of the core drilling rig and has a locking latch therein. The locking latch has a spring. When the locking recess is directly opposite the locking latch recess, the spring extends and the locking latch partially enters the locking recess. The core drilling rig has a central rod, a fluid channel activation module, an outer barrel, and outer barrel unlocking module and a flow diverging module. The central rod passes through the inner cavities of the fluid channel activation module, the outer barrel unlocking module and the flow diverging module.