| 摘要 |
PURPOSE:To permit an easy admission and removal of a pipe interior cleanup stopper into a discharge pipe provided at a pipe line entrance and from a receiving pipe at its exit, respectively, thereby improving operational efficiency, by providing gripping means on the top and bottom of the pipe interior cleanup stopper. CONSTITUTION:A pipe interior cleanup stopper 1 is forced through a pipe by a fluid pressure therein in a slidably engageable relationship with the interior thereof, thereby cleaning up the interior of the pipe. During this time, handles 3 and 6 provided on the top and bottom thereof, respectively, permit this stopper 1 to be inserted into a discharge pipe at a pipe line entrance and removed from a receiving pipe at a pipe line exit by being held with one hand or both hands. |
