Title:
DRAINPIPE STRUCTURE USING IMPROVED MANHOLE AND DRAINPIPE INSPECTION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2014/014231
Kind Code:
A1
Abstract:
The present invention provides a drainpipe structure using an improved manhole, comprising: an improved manhole (M) including a lower manhole (203) and an upper improved manhole (202) arranged on the lower manhole (203); a lower conduit (209) connected to the lower manhole (203); and an upper conduit (201) arranged above the lower conduit (209) and connected to the upper improved manhole (202). The lower portion of an existing manhole (103) and an existing drainpipe (102) are used as they are or newly installed for the lower manhole (203) and the lower conduit (209). The upper improved manhole (202) and the upper conduit (201) are installed after underground (101) excavation down to the existing drainpipe (102), and the upper conduit (201) receives the increasing amount of sewage flow. A bypass channel (302) for bypassing the sewage introduced from the upper conduit (201) and sending the sewage to the opposite upper conduit (201) is further installed in the upper improved manhole (202). An opening/closing port (303) is further installed in the bypass channel (302), the opening/closing port (303) having an opening/closing function for dropping the sewage introduced from the upper conduit (201) by gravity and sending the dropped sewage to the lower conduit (209) through the inside of the lower manhole (203), or sending the sewage introduced from the lower conduit (209) to the upper conduit (201) through the inside of the lower manhole (203) by the rise of the surface of the sewage.
Inventors:
CHOI JAE YONG (KR)
PARK JI YOUNG (KR)
KANG KI DONG (KR)
PARK JI YOUNG (KR)
KANG KI DONG (KR)
Application Number:
PCT/KR2013/006172
Publication Date:
January 23, 2014
Filing Date:
July 11, 2013
Export Citation:
Assignee:
ZIGAM ENC CO LTD (KR)
International Classes:
E03F5/02; E02D29/12
Foreign References:
| KR20090040746A | 2009-04-27 | |||
| JPH06257208A | 1994-09-13 | |||
| JP2004052269A | 2004-02-19 | |||
| KR20070056013A | 2007-05-31 |
Attorney, Agent or Firm:
CHO, SUNG KWANG (KR)
조성광 (KR)
조성광 (KR)
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