Method for blocking pipes without stopping water flow of pipes by using balloon

摘要

The present invention relates to a stepless method for closing a pipe through which a fluid flows without stepping. The subcutaneous method may include forming an opening by drilling a pipe of a pipe line to be closed; A first balloon body having first to fourth branches and expanded in a cross shape, and a second-first balloon body that is expanded in a quarter-circle form in a clockwise direction from the top to an outer portion of the first balloon body; Introducing a conduit closing device having a second balloon body consisting of a -2 balloon body, a 2-3 balloon body, and a 2-4 balloon body through the opening; Injecting gas into the first balloon body so that end portions of the first to fourth branch portions come into contact with inner walls of the pipes; Gas is injected into the second balloon body so that the outer circumference of the 2-1-1 balloon body, the 2-2 balloon body, the 2-3 balloon body and the 2-4 balloon body and the inner wall of the pipe contact each other. Rendering; It includes. According to this configuration, anyone can easily operate at low cost, can be applied from small diameter to large diameter, and can provide a water-refining method using a balloon principle that can completely close the pipe without a space.