JPS6421887U

JPS6421887U -

Info

Publication number: JPS6421887U
Application number: JP11723087U
Authority: JP
Priority date: 1987-07-30
Filing date: 1987-07-30
Publication date: 1989-02-03

Description

[Brief explanation of the drawing]

第１図は本案締付スリーブの正面図、第２図は
その縦断側面図、第３図は継手の断面図である。９は締付スリーブ、１５は第１スリツト、１７
は第２スリツト、９ａは円弧帯状部。 FIG. 1 is a front view of the proposed tightening sleeve, FIG. 2 is a vertical side view thereof, and FIG. 3 is a sectional view of the joint. 9 is a tightening sleeve, 15 is a first slit, 17
9 is a second slit, and 9a is an arcuate band.

Claims

[Scope of utility model registration request]

A fitting hole in which a male thread is formed on the outer periphery of at least one end of a joint body having a center hole, a fitting hole into which a steel pipe is inserted, and an annular space adjacent to the fitting hole and accommodating a seal ring in contact with the outer circumferential surface of the pipe. a joint body formed with a joint body, a tightening sleeve through which the steel pipe is inserted, an annular protrusion whose rear end surface abuts the side surface of the seal ring, a conical flanged surface connected to the annular protrusion, and an annular conical surface on the inner surface thereof. A pipe joint comprising a tightening sleeve having a serrated portion and a tightening nut having a tapered surface that is threaded onto the male thread of the joint body and in contact with the conical surface, the conical surface of the tightening sleeve A first slit is formed in the tube axis direction, and a second slit is formed in the circumferential direction from the slit to the first slit, leaving a connecting portion of a predetermined arc length in the tightening rotation direction of the nut. A tightening sleeve for a high-pressure, large-diameter pipe joint, in which an arcuate surface is formed on the outer periphery of the tip of the conical surface.