CN205244682U - Tube coupling loop constructs - Google Patents

Abstract

The utility model relates to a tube coupling loop constructs, including concentric and radial becket, plastic ring and the O shape ring of folding the cover. The becket has a caulking groove at radial lateral surface, provides this plastic ring and inlays and establish. This plastic ring has the integrative ring body that forms, convex part, reaches the annular. Through the constitution of above -mentioned component, implement in tube coupling department to fill the clearance of tube coupling department, avoid the working gas in the pipeline to leak.

Description

Pipeline connection ring structure

Technical field

There is the technical field, particularly a kind of pipeline about sealing ring in this creation systemConnection ring structure.

Background technology

Press, in manufacture of semiconductor, in production facility, will inevitably produce harmfulWorking gas, and these working gas must see through the gas of Pipeline transport to rear endBody treatment facility is dealt carefully with. And pipeline is to be generally connected in series by several metal tubesInstitute forms. Refer to shown in Fig. 7, this metal tube comprise first and second body 82,84 coordinate fixture 86 clamping serial connections, for fear of first and second body 82,84There is gap junction, all must use connecting ring 9 to fill up first and second pipeThe gap of body 82,84 junctions.

The structure of traditional connecting ring 9, roughly have a becket 92 andAround the O shape ring 94 of becket 92 lateral surfaces. When first and second body 82,84 with after connecting ring 9 clamped by fixture 86, and first and second body 82,84 is notThe flange 822,842 (or claiming flange) of end, can urgent O shape encircle 94, sees through OShape encircles 94 to fill up the gap of first and second body 82,84 junctions, and thenPrevent the leakage of the working gas in pipeline.

But the material of O shape ring 94 is generally rubber, but now halfIn conductor processing procedure, the O shape ring 94 of quality of rubber materials has splendid leakage-proof effect,But be really easily subject to the corrosion of working gas and impaired, reduce the use of O shape ringLife-span.

For avoiding O shape ring 94 impaired because of corrosion, cause the work in pipelineGas leak, so O shape ring 94 must regularly be changed. But, shortThe replacing in cycle; Not only can cause the waste of relevant cost, substitute fashion necessaryCoordinate the shutdown of producing facility, cause production capacity loss, maintenance personal, material to becomeBurden such as this grade.

In addition, becket 92 forms of known connecting ring 9 are fixed, Wu FatiFor appropriate deformation space, cause the protruding of first and second body 82,84 endsBetween edge 822,842 (or claiming flange) and becket 9, form larger gapA1, A2, and the working gas of first and second body 82,84 interior circulations,Easily permeate from those gaps A1, A2, and directly corrode O shape ring 94.

Utility model content

Because the defect of above-mentioned known technology, one of this creation object,See through the design of structure, lower the Exposure of O shape ring and working gas, extendO shape ring service life and maintenance cycle.

For reaching above-mentioned purpose, this creation proposes a kind of pipeline connection ring structure,Comprise one of concentric and radially nestable becket, a teething ring and O shape ring.This becket has a caulking groove in radial outer side, provides this teething ring to be embedded.This teething ring has and one of is integrally formed ring body, a protuberance and an annular groove.By the composition of above-mentioned member, be implemented on pipeline junction, connect to fill up pipelineConnect gap between place, avoid the interior working gas of pipeline to leak.

Preferably, the sidewall of wherein said caulking groove both sides has the activity sky of an appropriatenessBetween, described activity space is in order to change the size of this caulking groove.

Preferably, wherein said ring body shaft to both ends of the surface be provided with an inclined-plane orOne vertical plane; And the corresponding inclined-plane or that forms of the sidewall of described caulking groove both sides hangs downFace directly, wherein the sidewall of caulking groove both sides in the time being subject to pushing against can with ring body shaftTo both ends of the surface form adaptive butt.

Preferably, the external diameter surface cover of wherein said O shape ring is connected to lining.

By the composition of above-mentioned member, be implemented on pipeline junction, to fill up pipeThe gap of junction, road, avoids the working gas in pipeline to leak.

Brief description of the drawings

Fig. 1 is the utility model schematic perspective view

Fig. 2 is the utility model embodiment schematic diagram

Fig. 3 is partial cutaway schematic embodiment illustrated in fig. 2 (one).

Fig. 4 is partial cutaway schematic embodiment illustrated in fig. 2 (two).

Fig. 5 is another embodiment schematic diagram of the utility model.

Fig. 6 is another embodiment generalized section of the utility model.

Fig. 7 is known connecting ring embodiment generalized section

Figure number explanation: pipeline connecting ring 100, becket 1, caulking groove 12, sidewall122,124, teething ring 2, ring body 22, protuberance 24, annular groove 26, O shapeRing 3, the first body 82, flange 822, the second body 84, flange 842,Fixture 86, lining 4, inner groove 42, connecting ring 9, becket 92, OShape ring 94, gap A1, A2

Detailed description of the invention

Below please refer to correlative type and further illustrate this creation pipeline connecting ringStructure embodiment. For ease of understanding this creation embodiment, below identical partsSystem adopts same-sign and indicates explanation.

Refer to shown in Fig. 1 to 4, it comprises this pipeline connecting ring 100 with one heartAnd a becket 1, a plastic cement of radially nestable (being socketed with one heart and successively)Ring 2 and O shape ring 3. The pipeline connecting ring 100 forming by above-mentioned memberBe arranged at pipeline junction (for example 82,84 of first and second bodys), to fill upThe gap of pipeline junction, avoids the working gas in pipeline to leak.

Above-mentioned becket 1, has a caulking groove 12 in radial outer side, providesTeething ring 2 is embedded, and the sidewall 122,124 of caulking groove 12 both sides, has oneThe activity space of appropriateness, the setting of activity space is in order to change this caulking groove 12Size. When enforcement, the end face that sidewall 122,124 is relative, can be an inclined-planeAn or vertical plane.

Above-mentioned teething ring 2 has the ring body 22, the protuberance that are integrally formed24, an annular groove 26. Described ring body 22 is placed in the caulking groove 12 of becket 1In, the axial both ends of the surface of ring body 22, complexed metal ring 1 sidewall 122,124 end face, can be an inclined-plane or a vertical plane (is 122,124 points of sidewallsThe end face of corresponding ring body 22 can not be an inclined-plane or a vertical plane). InstituteStating protuberance 24 is to be formed at ring body 22 radial outer side, and protrudes from metalOutside the caulking groove 12 of ring 1, its profile is slightly less than teething ring 2. Described annular groove 26Form along this protuberance 24 outer ring surfaces, provide above-mentioned O shape to encircle 3 accommodating.

Being this creation therefore above-mentioned provides a preferred embodiment pipeline to connectThe introduction of T-Ring each portion member and assembling mode, below again by the enforcement of this creationExample start feature is described below.

First, the junction of first and second body 82,84 in pipeline, respectivelyThere is the flange 822,842 (or claiming flange) clamping for fixture 86, this flange822, the end face of 842 correspondences has first, second step. Wherein, pipeline connectsT-Ring 100 be placed in first and second body 82,84 flange 822,842 itBetween, make the protuberance 24 of teething ring 2 and O shape ring 3 be placed in flange 822,842The first step of end face, the ring body 22 of teething ring 2 and becket 1 areBe placed in the second step place of these flange 822,842 end faces.

In above-mentioned embodiment, the material of teething ring 2 comprises plastic cement (as iron fluorineDragon, but this creation is not as limit), and first and second body 82,84Material comprises (but not limitting) metallic aluminium. Because the hardness of plastic cement and metal is different,Based on this nonhomogeneous hardness, when fastening first, second body 82,84 of fixture 86Flange 822,842 o'clock, pipeline connecting ring 100 can be respectively flange 822,On 842 end faces, form several sealing protection.

When the two side 122,124 of becket 1 be subject to first, second body 82,84 flange 822,842 pushing and pressing, support towards the ring body 22 of teething ring 2 respectivelyConnect, can make becket 1 two side 122,124 outer peripheral edges and first, secondBody 82,84 its flange 822,842 end faces (second step) form firstSealing protection.

In addition, first, second body 82,84 its flange 822,842 end faces(first step) to encircle 3 both sides tight with the protuberance 24 of teething ring 2 and O shape respectivelyWhen close butt, can form respectively second, third road sealing protection.

In sum, by the design of several sealing protection, first,Two body 82,84 junctions, proper formation sealing effectiveness. In addition, logicalCross becket 1, teething ring 2 flange at first, second body 82,84822, first, second road sealing protection that 842 end faces form, significantly reducesWorking gas leaks to the amount of O shape ring 3, thereby slows down being subject to of O shape ring 3The speed that working gas corrodes, to extend the life-span of O shape ring 3.

Refer to shown in Fig. 5,6, Fig. 5,6 is that the utility model second is realExecute example; Wherein, the knot of becket 1, a teething ring 2 and O shape ring 3Structure is same as the previously described embodiments, therefore seldom repeat. Be as for difference partThe outer diametric plane of this O shape ring 3, is further socketed a lining 4, sees through lining 4Protect and retrain the deflection of O shape ring 3.

Described lining 4 aperture surfaces have coupling O shape and encircle the inner groove of 3 profiles42, provide O shape to encircle 3 outer peripheral edges accommodating.

The above explanation, is only the preferred embodiments of this creation, meaningIn the feature of clear and definite this creation, not in order to limit the model of this creation embodimentEnclose the equalization that those skilled in the art in the art do according to this creationChange, and the change known of those skilled in that art, this creation must be belonged toThe scope containing.

Claims (4)

1. pipeline connection ring structure, is characterized in that: comprise concentric and radially nestable goldBelong to ring, teething ring and O shape ring, wherein: described becket is in radial outer sideHave a caulking groove, described caulking groove is used for providing teething ring to be embedded;

Described teething ring have the ring body that is integrally formed, protuberance and

Annular groove;

Described ring body is placed in caulking groove;

Described protuberance is formed at this ring body radial outer side, and protrudes from thisOutside caulking groove, protuberance profile is less than this ring body; And

Described ring groove shape is formed in this protuberance radial outer side, and annular groove is used for providing O shape ringAccommodating.

2. pipeline connection ring structure according to claim 1, is characterized in that:The sidewall of wherein said caulking groove both sides has the activity space of an appropriateness, described workMoving space is in order to change the size of this caulking groove.

3. pipeline connection ring structure according to claim 2, is characterized in that:Wherein said ring body shaft to both ends of the surface be provided with an inclined-plane or a vertical plane;And a corresponding inclined-plane or the vertical plane of forming of the sidewall of described caulking groove both sides, whereinThe sidewall of caulking groove both sides in the time being subject to pushing against can with ring body shaft to two endsFace forms adaptive butt.

4. according to the pipeline connection ring structure described in claim 1-3 any one, its spyLevy and be: the external diameter surface cover of wherein said O shape ring is connected to lining.