CONNECTION PART BETWEEN PIPE SOCKET AND PIPE SPIGOT

摘要

PROBLEM TO BE SOLVED: To prevent slip-off without using a metallic catcher with the possibility of corrosion, saving labor for striking a hydras block of complicated shape. SOLUTION: This connection part inserts and connects a pipe spigot to a pipe socket 11 incorporating a water stop packing 12. A recessed groove 111 is provided in the pipe socket 11 along a circumferential direction, and a reinforcing member 112 is mounted on an opening side inner angle part of a side wall part of the recessed groove 111 along a circumferential direction. A slip-off preventive member 3 is provided to protrude outward piercing a pipe wall from the inside of the pipe spigot 21, and a protruding part of the slip-off preventing member 3 is locked to the recessed groove 111 of the pipe socket 11.