APPARATUS FOR INTRODUCING WIRE-TOWING ROPE AND APPARATUS FOR DRAINING THE PIPE WHEN THE WIRE-TOWING ROPE IS INTRODUCED

摘要

A cable is inserted in a protection pipe and water droplets adhered to the inner wall of the protection pipe and water staying in the bent portions of the pipe are collected by a plug of the appts. for introducing the wire-towing rope and are drained. The appts. comprises a wire-towing rope introducing fitting (11) which consists of a shaft (14) having at one end a coupling portion of the wire-towing rope (13) and a plug (15) attached which can move through a protection pipe (12). A vacuum generator (7) is provided at the other end of the pipe. The appts. for draining water when the appts. for introducing the wire-towing rope is in operation, comprises a pipe coupling portion (32) coupled to an end of the protection pipe (12), a drain pipe (35) that extends from the coupling portion and is bent downwardly, a suction pipe (34), and a valve (36) provided at the lower end of the drain pipe to move up and down due to the hydraulic pressure and vacuum action in order to open and close the drain pipe. @(21pp Dwg.No.8/8)@.