CONNECTING DEVICE OF UNDERGROUND BURIED PIPELINE MATERIAL

摘要

PROBLEM TO BE SOLVED: To quickly and surely connect and fix mutual pulling-in underground buried pipeline materials at burying work site, and to easily connect and fix the pipeline materials even by manual work of a worker without requiring large-scale equipment, a device, and a special tool.;SOLUTION: This connecting device has a cylindrical joint body 1 fitted outside the respective pipeline materials P by straddling respective end parts of the mutually connecting pipeline materials P, an inner cylinder body 5 fitted inside the respective end parts of the pipeline materials P, and a connecting ring body 10 inserted from the outside of the joint body 1 by straddling respective connecting grooves P1 and 2 oppositely and adjustably formed on an outer peripheral surface of the pipeline materials P and an inner peripheral surface of the joint body 1. An inserting port 3 continuing with the body connecting groove 2 is opened and formed in the normal direction of the joint body 1 itself on an outer peripheral surface of the joint body 1. The inner cylinder body 5 is formed in a cylindrical shape having an outer diameter corresponding to an inner diameter of the pipeline materials P, and the connecting ring body 10 is formed in a circular cut ring shape of curving in the almost same curvature as curvature in the outer peripheral surface of the pipeline materials P, and becoming discontinuous by cutting off a part.;COPYRIGHT: (C)2002,JPO