| 摘要 |
<p>PURPOSE:To repair broken parts on an inner surface of a pipe without digging out buried pipe. CONSTITUTION:A block member 1 and a back block member 2 are communicated by a flexible pressure proof hose 3 and outer peripheries of the members 1 and 2 are covered with a rubber tube 6 airtightly. The front end of the hose 3 is communicated with an injection port 5 facing an oblique back part of a head member 4. In the back block member 2, a hose connecting pipe 8 communicating with a sealed space S between the pressure proof hose 3 and the rubber tube 6 is provided. Jetting water flow to be sent from the flexible pressure proof hose 3 is jetted from the injection port 5 of the head 4, so that it proceeds freely even in a bent pipe so as to convey a repairing material to a desired place and the rubber tube 6 is expanded so as to press and set the repairing material impregnate with synthetic resin liquid on the inner surface of the pipe.</p> |
