Title:
DEVICE AND METHOD FOR SEALING INSIDE OF PIPE
Document Type and Number:
Japanese Patent JP2022169080
Kind Code:
A
Abstract:
To secure a sealing state when an apparatus is inserted into a pipe through a wall body.SOLUTION: A pipe inside sealing device 1 is applied to an existing pipe 102 extending through a wall body 101 dividing a general section 100A and a management section 100B. The pipe inside sealing device 1 includes: an apparatus introduction pipe 2 for introducing an apparatus 50 from the general section 100A to the management section 100B through the existing pipe 102; a connection unit 3 for connecting an end 2A of the apparatus introduction pipe 2 to an end 102A near the general section 100A of the existing pipe 102; and an injection pipe 4 connected to the middle of the apparatus introduction pipe 2, the injection pipe 4 injecting a viscous sealant into the apparatus introduction pipe 2.SELECTED DRAWING: Figure 3A
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Inventors:
MIZUMA HIROYUKI
AKAHANE TAKASHI
HASHIKAWA YUKI
AKAHANE TAKASHI
HASHIKAWA YUKI
Application Number:
JP2021074901A
Publication Date:
November 09, 2022
Filing Date:
April 27, 2021
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
G21D1/00; F16L5/02; G21F3/00
Attorney, Agent or Firm:
Sakai International Patent Office