JPH0414891U

JPH0414891U -

Info

Publication number: JPH0414891U
Application number: JP5620690U
Authority: JP
Priority date: 1990-05-28
Filing date: 1990-05-28
Publication date: 1992-02-06
Anticipated expiration: 2005-05-28
Also published as: JP2523405Y2

Description

[Brief explanation of drawings]

第１図は本考案の実施例を示す半截縦断面図、
第２Ａ図は抜け止めリングの正面図、第２Ｂ図は
第２Ａ図におけるＢ−Ｂ線に沿う断面図、第
３図は要部の拡大断面図、第４図は管に引抜力が
作用した場合の説明断面図、第５図は外面防食被
覆鋼管に本考案を適用した場合の実施例を示す半
截縦断面図、第６図は従来の抜け止めリングを備
えた管継手の半截断面図、第７図は従来の押し輪
締め付不足の場合の説明断面図である。１……継手本体、２……押輪、２Ｃ……テーパ
面、３……管、７……抜け止めリング、７Ａ……
欠円部、７ａ〜７ｄ……くい込み歯、８……環状
の空間、ｈ１，ｈ２……くい込み歯の高さ。 FIG. 1 is a half-cut longitudinal sectional view showing an embodiment of the present invention;
Figure 2A is a front view of the retaining ring, Figure 2B is a sectional view taken along line B-B in Figure 2A, Figure 3 is an enlarged sectional view of the main part, and Figure 4 is a diagram showing the state in which a pulling force is applied to the pipe. FIG. 5 is a half-cut vertical sectional view showing an example in which the present invention is applied to an external anti-corrosion coated steel pipe; FIG. 6 is a half-cut longitudinal sectional view of a pipe joint equipped with a conventional retaining ring; FIG. 7 is an explanatory cross-sectional view of a case where the conventional push ring is insufficiently tightened. 1...Joint body, 2...Press ring, 2C...Tapered surface, 3...Pipe, 7...Keeping ring, 7A...
Missing circular portion, 7a to 7d... bite teeth, 8... annular space, h1, h2... height of bite teeth.

Claims

[Scope of utility model registration request]

It is arranged in an annular space between a pipe and a push ring that is screwed onto a cylindrical joint body into which the pipe is inserted, and moves with the pipe as the pipe is moved in the drawing direction, thereby increasing the inner periphery of the push ring. This is a retaining ring that interferes with a tapered surface formed on the surface and bites deeply into the pipe. A plurality of biting teeth are formed in vertical rows in a sawtooth shape, and the height from the tip of the biting tooth at the outer end in the axial direction to the outer periphery is equal to the height from the tip of the biting tooth to the outer periphery of the other biting teeth. A retaining ring characterized by being set larger than its height.