Title:
CONNECTION STRUCTURE FOR SIMILAR OR DISSIMILAR MATERIAL CYLINDRICAL PIPES THAT ARE COMPATIBLE WITH EACH OTHER DURING EXCAVATION WORK
Document Type and Number:
WIPO Patent Application WO/2018/194404
Kind Code:
A1
Abstract:
The present invention relates to a connection structure for similar or dissimilar material cylindrical pipes that are compatible with each other during excavation work, the connection structure comprising: similar or dissimilar material cylindrical pipes which, when underground excavation is performed using excavation equipment, are coupled to the outer circumferential portion of the excavation equipment so as to be driven into an excavation hole up to a certain depth, wherein each of the cylindrical pipes has first fastening grooves formed in the outer circumferential portion of each of the upper and lower ends thereof, so as to extend the cylindrical pipes by connecting and coupling the upper and lower ends of each two pipes, according to the depth up to which the cylindrical pipes are driven into the excavation hole; a coupling which has two second fastening grooves corresponding to the first fastening grooves, the second fastening grooves being formed at two levels in the inner circumferential portion of the coupling, so as to correspond to the first fastening grooves at the upper and lower ends of each two cylindrical pipes, has through holes punched on one side of each of the second fastening grooves, and is fastened and coupled to the outer circumferential portions of each two cylindrical pipes along the first fastening grooves thereof; and wires fitted into the first fastening grooves and the second fastening grooves, respectively.
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Inventors:
GEEY JIN TAE (KR)
JUNG INN KI (KR)
CHUNG IN WOOK (KR)
JUNG INN KI (KR)
CHUNG IN WOOK (KR)
Application Number:
PCT/KR2018/004577
Publication Date:
October 25, 2018
Filing Date:
April 19, 2018
Export Citation:
Assignee:
GEEY JIN TAE (KR)
JUNG INN KI (KR)
CHUNG IN WOOK (KR)
JUNG INN KI (KR)
CHUNG IN WOOK (KR)
International Classes:
E21B17/02; F16L25/00; F16L37/14
Foreign References:
| KR100958377B1 | 2010-05-17 | |||
| JPH11190021A | 1999-07-13 | |||
| KR20040011730A | 2004-02-11 | |||
| KR20160025180A | 2016-03-08 | |||
| KR20000007507U | 2000-04-25 |
Attorney, Agent or Firm:
LEE, Jae Hwa (KR)
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