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Patent Searching and Data


Title:
ROTARY GUIDE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/095527
Kind Code:
A1
Abstract:
A rotary guide device, comprising: a rotary axis (1), the rotary axis (1) rotatingly driving a tool head (5), and the rotary axis comprising at least one steerable part (4); a first non-rotating body (2) and a second non-rotating body (3), the first non-rotating body (2) and the second non-rotating body (3) generally not rotating relative to the rotary axis (1) in the circumferential direction when the rotatory axis (1) rotatingly drives the tool head (5); a guide drive mechanism (6), the guide drive mechanism (6) connecting the first non-rotating body (2) and the second non-rotating body (3), and the guide drive mechanism (6) being suitable for producing a driving force generally along the axial direction so as to change the relative direction of the first non-rotating body (2) and the second non-rotating body (3), thus changing the direction of the tool head (5).

Inventors:
LIU QINGBO (CN)
DI QINGYUN (CN)
WANG TSILI (CN)
CHEN WENXUAN (CN)
DU JIANSHENG (CN)
YANG YONGYOU (CN)
HE XINZHEN (CN)
LIU YANG (CN)
HONG LINFENG (CN)
XIE QIJUN (CN)
Application Number:
PCT/CN2018/000086
Publication Date:
May 23, 2019
Filing Date:
March 02, 2018
Export Citation:
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Assignee:
INST GEOLOGY & GEOPHYSICS CAS (CN)
International Classes:
E21B23/08; E21B7/06
Foreign References:
CN105051316A2015-11-11
CN107060643A2017-08-18
US7631707B22009-12-15
CN204827226U2015-12-02
CN101772614A2010-07-07
CN203383731U2014-01-08
CN104619944A2015-05-13
US20140209389A12014-07-31
US20170107762A12017-04-20
Other References:
See also references of EP 3613940A4
Attorney, Agent or Firm:
BEIJING ZLC INTELLECTUAL PROPERTY AGENCY LTD (CN)
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