JPH0272891U

JPH0272891U -

Info

Publication number: JPH0272891U
Application number: JP15260188U
Authority: JP
Priority date: 1988-11-25
Filing date: 1988-11-25
Publication date: 1990-06-04

Description

[Brief explanation of drawings]

第１図は本考案の第１実施例を示す模式図、第
２図は第１図の要部を取りだして示す模式図、第
３図は変形例を示す模式図、第４図は本考案の第
２実施例を示す模式図、第５図は従来例を示す模
式図、第６図は従来例におけるシール部形成構造
を示す模式図である。１０……管継手、２０……カツプリング、２１
……テーパめねじ、２２……内径膨出部、３１，
３２……管本体、３３，３４……テーパおねじ、
３５，３６……密封接触面、３７，３８……密封
接触面、４０……管継手、４１……平行めねじ、
４２……平行おねじ、４３……内径膨出部、４４
……シール部、４５……密封接触面、４６……密
封接触面、１０１，１０２……シール部。 Fig. 1 is a schematic diagram showing the first embodiment of the present invention, Fig. 2 is a schematic diagram showing the main parts of Fig. 1, Fig. 3 is a schematic diagram showing a modification, and Fig. 4 is a schematic diagram showing the present invention. FIG. 5 is a schematic diagram showing a conventional example, and FIG. 6 is a schematic diagram showing a seal forming structure in the conventional example. 10...pipe joint, 20...coupling, 21
... Tapered female thread, 22 ... Inner diameter bulge, 31,
32...Pipe body, 33, 34...Tapered male thread,
35, 36... Sealed contact surface, 37, 38... Sealed contact surface, 40... Pipe fitting, 41... Parallel female thread,
42...Parallel male thread, 43...Inner diameter bulge, 44
... Seal portion, 45 ... Sealed contact surface, 46 ... Sealed contact surface, 101, 102 ... Seal portion.

Claims

[Scope of utility model registration request]

In a pipe joint in which male threads provided at each end of the first and second pipe bodies are screwed into female threads provided at both ends of the coupling ring, an intermediate portion sandwiched between both female threads of the coupling ring. and when forming a seal by forming a seal by abutting each of the end surfaces of both tube bodies against each side of the inner diameter bulge provided in the coupling ring, each of the end surfaces of both tube bodies is an arcuate sealing contact surface, and both sides of the inner diameter bulge are vertical sealing contact surfaces.