JPS62140293U

JPS62140293U -

Info

Publication number: JPS62140293U
Application number: JP2783986U
Authority: JP
Priority date: 1986-02-27
Filing date: 1986-02-27
Publication date: 1987-09-04

Description

[Brief explanation of drawings]

第１図は本考案に係る管継手の一例を示す半裁
断面図、第２図は第１図の例におけるナツトの締
付け前の一部拡大断面図、第３図は他の実施例を
示す一部拡大断面図、第４図及び第５図は継手本
体のテーパー面における凹部の変形例を示す一部
拡大断面図、第６図〜８図はスリーブの変形例を
示す拡大断面図、第９図は更に他の実施例を示す
一部断面図、第１０図は従来のフレア管継手を例
示した半裁断面図である。図中主要符号の説明、１は継手本体、１１は雄
ねじ部、１２はテーパー面、１３は環状の凹部、
２はフレア管、２１はフレア部、３はスリーブ、
３０はエツジ、４はナツト、４１は内鍔である。 Fig. 1 is a half-cut sectional view showing an example of a pipe joint according to the present invention, Fig. 2 is a partially enlarged sectional view of the example shown in Fig. 1 before tightening the nut, and Fig. 3 is a cross-sectional view showing another embodiment. FIGS. 4 and 5 are partially enlarged sectional views showing modified examples of the recess in the tapered surface of the joint body. FIGS. 6 to 8 are enlarged sectional views showing modified examples of the sleeve. The figure is a partial cross-sectional view showing still another embodiment, and FIG. 10 is a half-cut cross-sectional view illustrating a conventional flare pipe joint. Explanation of the main symbols in the figure: 1 is the joint body, 11 is the external thread, 12 is the tapered surface, 13 is the annular recess,
2 is a flared pipe, 21 is a flared part, 3 is a sleeve,
30 is the edge, 4 is the nut, and 41 is the inner guard.

Claims

[Claims for Utility Model Registration] (1) A male thread is formed on a part of the circumferential surface, and a tapered surface is formed at the end in contact with the inner surface of the flared portion of the flared tube, and the cylindrical center of the flared tube is connected to this tapered surface. A joint body having a substantially concentric annular recess formed therein, and a nut screwed into the male threaded portion, and an annular edge formed inside the nut by the nut screwed into the male threaded portion or separately. A flare pipe joint characterized in that by pressing an annular edge formed on a provided sleeve against an outer surface of the flare part of the flare pipe, a part of the flare part is forced into the annular recess. (2) The flare pipe joint according to claim 1 of the utility model registration claim, in which a plurality of continuous annular recesses are formed. (3) The flare pipe joint according to claim 1, wherein the annular recess has a groove-like cross section.