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Patent Searching and Data


Title:
AUTOMATIC STARTING MECHANISM FOR CORE DRILLING RIG
Document Type and Number:
WIPO Patent Application WO/2020/034366
Kind Code:
A1
Abstract:
Disclosed is an automatic starting mechanism for a core drilling rig, comprising a liquid passage central rod (14), a liquid passage starting module, an outer cylinder (22) and an outer cylinder unlocking module. The liquid passage starting module comprises a locking body (11), a locking rod (12), a shear pin (13), a liquid passage A (31), a liquid passage B (132) and a liquid passage C (33), and the liquid passage B (132) communicating with the liquid passage C (33); the outer cylinder unlocking module comprises a connecting pipe (21), the outer cylinder (22) and a locking pin (23), the rear end of the connecting pipe (21) being connected to the locking body (11), the rear end of the locking pin (23) being connected to the locking rod (12); before starting, the shear pin (13) fixes the locking rod (12) in the locking body (11), the liquid passage A (31) is separated from the liquid passage B (132), a pin (24) fixes the outer cylinder (22) outside the connecting pipe (21), and after starting, the pin (24) is cut off, the locking rod (12) moves forward, and the liquid passage A (31) communicates with the liquid passage B (132), the pin (24) releases constraints on the outer cylinder (22). The automatic starting mechanism for the core drilling rig locks working components and blocks the liquid flow passages before starting, and releases axial constraints on the working components and provides hydraulic pressure to the working components after starting.

Inventors:
CHEN LING (CN)
XIE HEPING (CN)
GAO MINGZHONG (CN)
ZHANG ZHILONG (CN)
ZHANG RU (CN)
ZHANG ZETIAN (CN)
LU YIQIANG (CN)
LI CONG (CN)
HE ZHIQIANG (CN)
HUA XIA (CN)
MING CHUANJIAN (CN)
PENG GAOYOU (CN)
LU TONG (CN)
Application Number:
CN2018/109036
Publication Date:
February 20, 2020
Filing Date:
September 30, 2018
Export Citation:
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Assignee:
UNIV SICHUAN (CN)
UNIV SHENZHEN (CN)
International Classes:
E21B25/00
Foreign References:
CN104153734A2014-11-19
CN202544784U2012-11-21
CN105927175A2016-09-07
US20120111635A12012-05-10
US20140190746A12014-07-10
Attorney, Agent or Firm:
GAOYUNG INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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