| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent internal corrosion as well as to secure sealing properties in a sealed plug attached at the opening end of a sealed pipe whose cylindrical part is formed of an inner caulking, by forming a crown cap to the end part of a column body equipped with the housing groove of a sealing member, and arranging to the other end thereof a claw body formed of a claw equipped with a plurality of jaws. SOLUTION: In a pipe whose inner surface thereof should not be corroded by penetration of liquid, for example, a sealed plug 3 for an internal rust, preventive pipe, a cylindrical part 1 in which two baggy groves 12 are formed to a metallic cylinder 11 is fitted to a sealed pipe 2 by matching the opening end thereof to a pipe P. In this sealed plug 3 which is formed of a plastic material, a crown cap 34 is formed at the end part of a column body 31, and a claw body 4 outwardly extended is formed at the other end thereof. The claw body 4 is inserted and attached to the sealed pipe 2 so that the jaw surface of the jaw 42 of the claw 41 of the claw body 4 is collided with and stopped at the end of the cylinder 11, and the saddle part 32 of the column body 31 is fitted to the baggy grooves 12 so as to be engaged and attached therewith/ thereto, therefore sealing properties in the pipe P can be secured by a sealing member 5 such as an O-ring and so on arranged to a containment bar 33.</p> |
