JPS6345284U

JPS6345284U -

Info

Publication number: JPS6345284U
Application number: JP13542286U
Authority: JP
Priority date: 1986-09-05
Filing date: 1986-09-05
Publication date: 1988-03-26

Description

[Brief explanation of the drawing]

第１図本考案のＵ型リツプを有するパツキンの
縦断面図、第２図本考案のパツキンを装着した差
込み継手に管を接続した状態を示す縦断面図、第
３図従来の差込み継手に管を接続した状態を示す
縦断面図、第４図従来の差込み継手に管の曲がり
が生じた状態を示す縦断面図。１：パツキン、２：パツキン本体、３：リツプ
、５：テーパー面、１１：継手本体、１３：抜止
めリング、１４：パツキン装着部、２０：鋼管、
２１：環状溝。 Fig. 1 is a vertical cross-sectional view of the packing having a U-shaped lip according to the present invention, Fig. 2 is a longitudinal cross-sectional view showing a state in which a pipe is connected to a plug-in joint equipped with the packing according to the present invention, Fig. 3 is a vertical cross-sectional view showing a state in which a pipe is connected to a plug-in joint equipped with a packing according to the present invention, Fig. 3 FIG. 4 is a vertical cross-sectional view showing a conventional insertion joint in which the pipe is bent. 1: Seal, 2: Seal body, 3: Lip, 5: Tapered surface, 11: Joint body, 13: Retainer ring, 14: Seal attachment part, 20: Steel pipe,
21: Annular groove.

Claims

[Claims for Utility Model Registration] (1) A seal with a lip for a plug-in joint, characterized in that the seal 1 of the plug-in joint is provided with a lip at the tip of the seal main body 2. (2) The packing body 2 has a flat outer circumferential surface 4, and an inner circumferential surface has an inner diameter _D1 at the tip which is slightly larger than the outer diameter d of the tube, and an inner diameter _D2 at the center which is a tapered surface 5 which is slightly smaller than the outer diameter d of the tube. A packing with a lip for a plug-in joint according to claim 1, characterized in that it has the following features: (3) The lip 3 is U-shaped, and its outer diameter _d1 is larger than the inner diameter _D4 of the inner circumferential surface 15 of the packing attachment part 14, and the inner diameter _D3 is smaller than the pipe outer diameter d, so a slight fluid pressure is sufficient. 2. The lip-fitting packing for a plug-in joint according to claim 1, which is formed thin so as to react with water and seal fluid. (4) The length C of the packing 1 is sufficient to maintain an appropriate distance between the tip of the lip and the position of the annular groove 21, and the error _C1 in the position of the annular groove 21 from the pipe end is It has a lip for a plug-in joint according to claim 1 of the utility model registration claim, which is formed to be larger than the sum of the length _C2 from the center of the annular groove to the end of the groove including the sagging part. Patsukin.