JPH025686U

JPH025686U -

Info

Publication number: JPH025686U
Application number: JP8414488U
Authority: JP
Priority date: 1988-06-25
Filing date: 1988-06-25
Publication date: 1990-01-16

Description

【図面の簡単な説明】第１図乃至第５図は従前手段を示し、第１図は
従前手段の各部品に分解した縦断側面図、第２図
は同上のセツト状態の縦断側面図、第３図は同上
の締付状態の縦断側面図、第４図および第５図は
同上の作用の説明図である。第６図乃至第１３図
は本考案手段の実施例を示し、第６図は本考案を
実施せるチユーブ接続用の継手のセツト状態の縦
断側面図、第７図は同上の各部品に分解した状態
の側面図、第８図は同上の仮止め状態の縦断側面
図、第９図は同上の接続工程の説明図、第１０図
は別の実施例の仮止め状態の縦断側面図、第１１
図は同上の接続工程途上における縦断側面図、第
１２図はさらに異なる実施例の仮止め状態の縦断
側面図、第１３図は同上の接続工程途上における
縦断側面図である。図面符号の説明、Ａ……継手、Ｌ……突出長さ
、ａ……チユーブ、ｂ……内筒、ｐ……締付位置
、ｗ……後端面、ｔ……端面、ｙ……支承面、１
……継手本体、１ａ……主体部、１ｂ……接続筒
部、１０……ねじ部、１１……段部、１２……拡
径部、２……内側スリーブ、３……スリーブ、３
ａ……チヤツク部、３０……両端部、３１……鍔
部、３２……膨出部、３３……すり割り溝、４…
…袋ナツト、４ａ……テーパー部分、４０……ね
じ部、４１……テーパー部、４２……透孔、５…
…Ｏリング、６０……端面、７０……鍔部。[BRIEF DESCRIPTION OF THE DRAWINGS] Figs. 1 to 5 show the conventional means, Fig. 1 is a vertical cross-sectional side view of the conventional means disassembled into each part, Fig. 2 is a longitudinal cross-sectional side view of the same as above in the set state, FIG. 3 is a longitudinal sectional side view of the same as above in the tightened state, and FIGS. 4 and 5 are explanatory diagrams of the action of the above. Figures 6 to 13 show examples of the means of the present invention, Figure 6 is a vertical cross-sectional side view of a set state of a joint for connecting a tube that can implement the present invention, and Figure 7 is an exploded view of the same parts. FIG. 8 is a longitudinal sectional side view of the temporarily fixed state of the above, FIG. 9 is an explanatory diagram of the connection process of the same as the above, FIG. 10 is a longitudinal sectional side view of another embodiment of the temporarily fixed state, and FIG.
The figure is a vertical side view in the middle of the connection process same as the above, FIG. 12 is a vertical side view in a temporarily fixed state of another embodiment, and FIG. 13 is a vertical side view in the middle of the connection process same as the above. Explanation of drawing symbols, A...Joint, L...Protrusion length, a...Tube, b...Inner cylinder, p...Tightening position, w...Rear end face, t...End face, y...Support face, 1
...Joint body, 1a...Main part, 1b...Connection cylinder part, 10...Threaded part, 11...Step part, 12...Enlarged diameter part, 2...Inner sleeve, 3...Sleeve, 3
a...chuck part, 30...both ends, 31...flange part, 32...bulge part, 33...slit groove, 4...
...Cap nut, 4a...Tapered part, 40...Threaded part, 41...Tapered part, 42...Through hole, 5...
...O-ring, 60...end face, 70...flange.

Claims

[Claims for Utility Model Registration] A joint main body 1 in which a connecting cylinder part 1b for inserting a tube is installed on the front end side of a cylindrical main body part 1a and has a threaded part 10 for screwing a cap nut on the outer peripheral surface. , an O-ring 5 that is fitted onto the outer periphery of the connecting end of the tube a that is inserted into the inner cavity of the connecting cylinder portion 1b of the joint body 1;
and a sleeve 3, a cap nut 4 that is screwed onto the threaded portion 10 of the connecting cylinder portion 1b of the joint body 1 and pushes the sleeve 3 into the joint body 1 side, and a cap nut 4 that is screwed into the threaded portion 10 of the connecting cylinder portion 1b of the joint body 1, and a cap nut 4 that pushes the sleeve 3 into the joint body 1 side;
An inner cylinder b is provided in the joint body 1 so as to fit into the inner circumferential surface of the connecting end of the tube a to be inserted therein, and the sleeve 3 is pushed in by its rear end face w when the sleeve 3 moves on the pushing side. a support surface y provided on the inner circumferential surface of the joint body 1 to support the O-ring 5 to be held at a position corresponding to the outer circumferential surface of the inner cylinder b, and the rear end surface w of the sleeve 3 and the support surface A joint for connecting a tube in which either one of y is formed into a tapered surface that pushes out the O-ring 5 toward the axis of the joint body 1 when the sleeve 3 is pushed in by screwing the cap nut 4. A joint for connecting a tube according to claim 1, wherein the inner cylinder b is formed integrally and continuously with the joint body 1. A joint for connecting a tube according to claim 1, wherein the inner cylinder b is formed separately from the joint body 1 and is fitted into a fitting stepped portion in the joint body 1. A joint for connecting a tube according to claim 1, wherein a chuck portion 3a is formed on the outer end side of the sleeve 3, the chuck portion 3a being reduced in diameter when the cap nut 4 is pushed in. The rear end surface w of the sleeve 3 is formed into a tapered surface whose diameter gradually increases toward the rear, and the joint body 1
A joint for connecting a tube according to claim 1, wherein the bearing surface y of the O-ring 5 provided on the inner circumferential surface of the joint body 1 is formed in a plane parallel to the diametrical direction of the joint body 1. The bearing surface y of the O-ring 5 provided on the inner peripheral surface of the joint body 1 is formed into a tapered surface whose diameter gradually decreases toward the rear, and the rear end surface w of the sleeve 3 is formed into a plane parallel to the diametrical direction of the joint body 1. A joint for connecting a tube according to the claim. The rear end surface w of the sleeve 3 is formed into a tapered surface whose diameter gradually increases toward the rear, and the joint body 1
A joint for connecting a tube according to claim 1, wherein the bearing surface y of the O-ring 5 provided on the inner circumferential surface of the O-ring 5 is formed into a tapered surface whose diameter gradually decreases toward the rear.