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. 03, 2023
Filed:
Nov. 12, 2018
Shenzhen University, Guangdong, CN;
Sichuan University, Sichuan, CN;
Mingzhong Gao, Sichuan, CN;
Heping Xie, Sichuan, CN;
Ling Chen, Sichuan, CN;
Jun Guo, Sichuan, CN;
Zhilong Zhang, 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 control mechanism of a core drilling rig includes a central rod () and an outer barrel (). The central rod () passes through, from the rear to the front, the inner cavities of a fluid channel activation module, an outer barrel unlocking module, a flow diverging module, and a coring barrel connecting module. The coring barrel connecting module comprises a core tube connecting pipe (), a core ring bearing (), a bearing inner ring (), a ball A () and a ball B (). The core tube connecting pipe () is connected at the front side thereof to the coring barrel (). The bearing inner ring () is inside the core tube connecting pipe (). The core ring bearing () is connected to an inner wall of the outer barrel ().