CN201116634Y

CN201116634Y - Conical surface O-shaped ring sealing type pipeline mobile joint

Info

Publication number: CN201116634Y
Application number: CNU200720092345XU
Authority: CN
Inventors: 许智远
Original assignee: ZHENGZHOU INSTITUTE OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Current assignee: ZHENGZHOU INSTITUTE OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Priority date: 2007-10-24
Filing date: 2007-10-24
Publication date: 2008-09-17
Anticipated expiration: 2017-10-24

Abstract

The utility model relates to a taper O-shaped seal-type pipeline union of hydraulic, chemical and water supply pipelines, for resolving the application defects of traditional union, to improve the application property and processing property of union. The utility model comprises a left and a right union bodies and a taper groove hole in the right end of the left union, wherein the taper head of the left end of the right union body is mounted in the taper groove hole at the right end of the left union body, the connection between the left and right union bodies is fixed via an external connecting nut, the periphery of the left taper head of the right union body is provided with a groove in which a O-shaped sealing ring is mounted, the inner surface of the connecting nut that connected with the right union body is provided with a retainer groove on the periphery of the right union body, and the retainer groove is clamped with a O-shaped sealing steel wire retainer ring. The utility model has novel structure, simple and easy production, easy installment and application, better application effect and long service life, which is the improvement on prior hydraulic pipeline union.

Description

Conical surface seal with O ring formula pipe union

One, technical field

The utility model relates to pipe joint, and particularly a kind of to be applied to line seal performance requirements such as hydraulic pressure, chemical industry, feedwater higher, and the frequent conical surface seal with O ring formula pipe union of the hydraulic pipe line of dismounting again.

Two, background technique

Pipe union is an element commonly used in the pipelines such as hydraulic pressure, chemical industry, feedwater, usually use the nut type pipe joint of living, three kinds of forms of radial seal and end face seal and ball face sealing are arranged, wherein adopt the joint processing of radial seal form more convenient, cost is low, but when dismounting difficulty; The joint disassembly of end face seal form and ball face sealing form is more convenient, but after the dismounting when installing once more, sealability is often destroyed, and difficulty of processing is big, manufacture cost is high, and therefore, the innovation of pipe union is that people are desired.

Three, model utility content

The purpose of this utility model is to solving hydraulic pressure, chemical industry, the conical surface seal with O ring formula pipe union of using in the pipe-line systems such as feedwater, enable to overcome traditional union deficiency in use, improve the usability and the technology capability of joint, the technological scheme that its technical problem that solves the utility model adopts is: two fittings bodies about including, there is a recess hole that is tapering fittings body right-hand member inside, a left side, the right-hand member that the left end cone head part of right connector body is contained in left fittings body is in the recess hole of tapering, about two fittings body connecting places be fixed together by the attaching nut of outside, fluted on the left end conehead periphery of right connector body, the O RunddichtringO is housed in this groove, the attaching nut has circlip groove with the inner face place that the right connector body links to each other on right connector body periphery, be installed with O shape sealing Steel Cable Baffle Ring in the circlip groove, the utility model novel structure, uniqueness, simple, easily produce, easy to install, using effect is good, and the life-span is long, is the inventive improvements to existing hydraulic tube union.

Four, description of drawings

Accompanying drawing is a structural profile plan view of the present utility model.

Five, embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.

Provide by accompanying drawing, two fittings bodies about the utility model includes, there is a recess hole that is tapering fittings body 1 right-hand member inside, a left side, the right-hand member that the left end cone head part of right connector body 6 is contained in left fittings body is in the recess hole of tapering, left and right two fittings body connecting places are fixed together by the attaching nut 4 of outside, fluted on the left end conehead periphery of right connector body 6, O-ring seals 3 is housed in this groove, the inner face place that attaching nut 4 links to each other with right connector body 6, on right connector body 6 peripheries, circlip groove is arranged, be installed with O shape sealing Steel Cable Baffle Ring 5 in its circlip groove.

In order to guarantee easy for installation and using effect, outside, left fittings body 1 two ends is shape of threads, and is fluted on the outer periphery, middle part, and O-ring seals 2 is housed in its groove; Right connector body 6 right-hand members are shape of threads outward, and are fluted between threaded inner end and boss flange, and O-ring seals 7 is housed in it.

The utility model assembling situation is, when joint connects, earlier the cone head part of right connector body 6 inserted in the groove of band tapering of left fittings body 1, nut 4 then is rotationally connected, it is tightened, left fittings body 1 is compressed with right connector body 6, O-ring seals 3 seals surface of contact.

The utility model conical surface O-shaped ring sealing type pipeline mobile joint carries out three kinds of seal form comprehensively to raise Length is kept away weak point, makes it both to dismantle easily, still can recover the front sealing property of dismounting when again installing after the dismounting, And easy to process, the more important thing is with the joint of former three kinds of forms and compare that the attaching nut can be from connecing Front end takes off, and like this, in case when nut or joint damage, need not all change, only changes corresponding Part get final product, reduced the cost of installation, use. Comprehensive above situation, the utility model advantage exists In:

1, because the contact-making surface of two fittings bodies is taper, makes it more columned easier dismounting when dismounting;

2, because in disassembly process, the shortening of the friction process of O-ring seals and another sealing surface makes that seal ring is more difficult to be damaged;

3, the attaching nut is connected by Steel Cable Baffle Ring with fittings body, just be easy to the attaching nut is pulled down as long as Steel Cable Baffle Ring pulled down, changed traditional employing welding manner the attaching nut " is blocked up " on fittings body, overcome the shortcoming that the attaching nut can not change, economic and social benefit is remarkable.

Claims

1, a kind of conical surface seal with O ring formula pipe union, two fittings bodies about including, it is characterized in that, there is a recess hole that is tapering fittings body (1) right-hand member inside, a left side, the right-hand member that the left end cone head part of right connector body (6) is contained in left fittings body is in the recess hole of tapering, a left side, right two fittings body connecting places are fixed together by the attaching nut (4) of outside, fluted on the left end conehead periphery of right connector body (6), O-ring seals (3) is housed in this groove, the inner face place that attaching nut (4) links to each other with right connector body (6), on right connector body (6) periphery, circlip groove is arranged, be installed with O shape sealing Steel Cable Baffle Ring (5) in its circlip groove.

2, conical surface seal with O ring formula pipe union according to claim 1 is characterized in that, outside, said left fittings body (1) two ends is shape of threads, and is fluted on the outer periphery, middle part, and O-ring seals (2) is housed in its groove.

3, conical surface seal with O ring formula pipe union according to claim 1 is characterized in that, said right connector body (6) right-hand member is shape of threads outward, and is fluted between threaded inner end and boss flange, and O-ring seals (7) is housed in it.