Title:
VERTICAL GUIDE AND DUST COLLECTION APPARATUS FOR DRILLING TRANSMISSION AND TRANSFORMATION LINE FOUNDATIONS
Document Type and Number:
WIPO Patent Application WO/2017/012490
Kind Code:
A1
Abstract:
A vertical guide and dust collection apparatus for drilling transmission and transformation line foundations. The apparatus comprises a vertical guide mechanism and a dust collection mechanism. The vertical guide mechanism and the dust collection mechanism are coaxially configured, and through holes for penetration of a drill rod (6) are provided in the axial center of the vertical guide mechanism and the axial center of the dust collection mechanism. The vertical guide and dust collection apparatus for drilling transmission and transformation line foundations can ensure drilling verticality and collection of generated dust in a drilling process, can effectively avoid the problem of drilling deviation caused by radial swing of a drill bit, and reduces harm of dust to operators and environment in a construction process, thereby improving the drilling efficiency and the personnel safety.
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Inventors:
TANG GUANGRUI (CN)
LI MIAOMIAO (CN)
CHEN PING (CN)
XIA YONGJUN (CN)
YANG DAMIAO (CN)
ZHENG FENGLIN (CN)
LI MIAOMIAO (CN)
CHEN PING (CN)
XIA YONGJUN (CN)
YANG DAMIAO (CN)
ZHENG FENGLIN (CN)
Application Number:
PCT/CN2016/089865
Publication Date:
January 26, 2017
Filing Date:
July 13, 2016
Export Citation:
Assignee:
CHINA ELECTRIC POWER RES INST (CN)
STATE GRID CORP CHINA (CN)
STATE GRID FUJIAN POWER ELECTRIC COMPANY ECONOMIC RES INST (CN)
UNIV BEIJING SCIENCE & TECH (CN)
STATE GRID CORP CHINA (CN)
STATE GRID FUJIAN POWER ELECTRIC COMPANY ECONOMIC RES INST (CN)
UNIV BEIJING SCIENCE & TECH (CN)
International Classes:
E21B7/04; E21B19/24
Foreign References:
| CN105064918A | 2015-11-18 | |||
| CN204827229U | 2015-12-02 | |||
| US4300642A | 1981-11-17 | |||
| GB191315931A | 1914-07-02 | |||
| CN202325617U | 2012-07-11 | |||
| DE3004077A1 | 1981-08-13 | |||
| JP2000328870A | 2000-11-28 |
Attorney, Agent or Firm:
AMBOYNA INTELLECTUAL PROPERTY AGENT CO.,LTD. (CN)
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