| 摘要 |
The present invention relates to a moving device for a pipe interior, which always moves inside a pipe in a center axis direction regardless of the size of the pipe while adjusting rigidity of the moving device. The moving device for a pipe interior, comprises: a first body inserted into the inner side of a pipe; a plurality of first support legs protruding radially from the first body and supporting the inner wall surface of the pipe; a second body connected to the second body to be curved and inserted into the inner side of the pipe; a plurality of second support legs protruding radially from the second body and supporting the inner wall of the pipe; and at least one first elastic member which is installed between the first and the second body or between the first support legs and the second support legs and controls elastic force to adjust an amount of force needed for curving the second body from the first body. |
