DE1921956A1 - Sealing of pipe joints - Google Patents

Description

Hermann Müoher Mücher-Rings, 583 Schwelm,

Steinwegstrasse 30th

Diohting of pipe joints.

The invention relates to a sealing of pipe joints using a elastic sealing ring, which is within a between the outer circumferential surface of the to be connected Pipe end and the inner circumferential surface of a connecting sleeve left socket gap is added.

In practice, various sealing means in the form of sealing rings are used for a tight connection became known from pipe connection points. One type of sealing rings are designed so that they be pulled onto the pipe end to be connected like a sleeve and then inserted into a sleeve, wherein the sealing ring is stationary on the pipe end

009847/0354

sits “So-called rolling rings are also known, which roll on the outer circumferential surface of the drilling end to be connected when the tube is inserted into a connecting sleeve. And finally next to these two most common sealing rings. also another one Known form of seal in which a sealing ring is arranged within the connecting sleeve.

All of the aforementioned types of Sealing means for sealing pipe connection atelles, however, have a number of known ones and for this reason not particularly worth mentioning hang ·! on, which is why the present invention set the task of creating a seal that is far superior to all the previously known seals.

The aim of the invention is first of all achieved in an advantageous manner essentially by the fact that the new sealing ring from its sealing end-side ring end face over parts of its axial length away with the formation of a wedge-shaped cross-section at least one on the ring outer jacket surface on one side

009847/0354

tapered towards the opposite end of the ring Has annular kellzone, to which in the axial direction one that falls below the cross-sectional strength of the annular wedge zone, over a further axial section of the Ring cross-sectional length equal »remaining having a smaller cross-sectional thickness · Ring expansion zone with axial Stretch-pulling action, which eventually turns into a sole ring fastening flange itself forming ring retaining means and / or having separate retaining means passes over, and that the ring inner jacket surface is generally flat over the length of all lingsons and gate-jump-free and full-surface on the outer jacket surface of the connection pipe to » lies, while the outer surface of the ring zone under tizial back tension against the axial expansion of the ring expansion zone on a conical which runs inclined in the same direction in accordance with the ring wedge teeth Ring support surface of a koneentriech un the ring around arranged connecting sleeve inner side abutment rings β supported under wedge cleavage let, this Abutment ring In the axial direction at least up to continued over the axial length of the longitudinal stretch

'Q984 7- / D3b,. ^ _BAD _ _omml

is and in the area of the ring expansionSEone of the sealing ring one the axial length of the Ringdehmmgßisone im relaxed state of the ring overhanging its own Axial length, and that finally the sealing ring over «a ring mounting flange in or approximately in the end area of the connecting sleeve and / or the abutment ring axially fixed in a spatially fixed manner is.

The practical implementation of the invention thus represents a completely new way and a completely new one Type of a seal on the tight connection of pipe joints which, thanks to its characteristic structure, is for the first time able to deal with all of the Practice to be able to individually adapt the prevailing conditions between the sweeping end to be connected and the connecting sleeve.

If, in practice, there are always difficulties with all of the sealing means mentioned at the beginning came when there were great tolerances between the outer duress of the connection and the inner

^ -00980 / 0314

diameter of the connecting sleeve Torherrechte, so

this can in this respect alone / Hangel through the new poetry excellent and reliably overcome in a hitherto unattainable level, because this sighting practically automatically to all occurring between the connecting pipe ends and the connecting sleeves Adjusts diameter tolerances.

The novel principle of the invention The proposed Diohtung is practically based on the fact that a wedge-shaped zone of the Diohtungsringes with a wedge-shaped counter-support of a counter arranged concentrically around the sealing ring. bearing ring in the sense of a radial compression and thus a tight connection on the one hand and a radial tolerance compensation on the other hand. That effect comes about according to the invention by the fact that the new Sealing ring connected to an annular wedge · on · an elongation zone with an axial Streok tensile effect owns. This axial ring expansion zone is included kept shorter in length than a cylindrical Abeohnitt running parallel to the ring expansion zone of the abutment ring. If so, then another

- 5 -QQ9 & 47 / 03S4

Proposals for the invention through the rainproof bracket The sealing rings in areas of a defeat flansohes on the abutment ring or on the connecting sleeve the new sealing ring is axially held » When the connecting tube end is pushed in axially in the ring expansion zone, there is an axial stretching effect comes about, which has the effect that the annular kellzone of the sealing ring can advance up to the required support point of the inclined counter support zone on the abutment ring. The stretching effect of the However, on the other hand, the ring expansion zone also causes an axial retraction of the sealing ring, the but only affects the ring wedge xone with the It follows that this ring wedge zone in the sealing area is literally under Kei! clamping on the outer surface of the connecting pipe section on the one hand and the inclined supporting surface of the Yiderlagerringes is held on the other hand.

This effect achieved with the sealing ring proposed by the invention comes from for this reason an absolutely tight connection as well

009847/0354

an automatic tolerance compensation as well as an automatic one Adjustment of the sealing ring to the circumstances between the connecting pipe and the connecting sleeve, so that this sighting is also can not be made accessible to the high degree of universal use that has been achieved so far «

The Erfindungßgegenetand can now in many ways in practice be realized, wherein a erete embodiment can for example be formed by the with the same direction as Ringkeilsons Ü. & B sealing ring sloping, tapered Eingstütsflache auBgerüßtete abutment ring as the over the area of Kingbefeotigungsflansches with the Eingsoiien Sealing ring integrally connected and parallel to this about the outer surface of the outer jacket surface, eg, a connecting sleeve is formed which extends over the said axial length.

Sex in such an embodiment of the uird casurcli an ale ring fs t eg trained ring toil

"7

009847 / 0-3St-

dti Siontamgsringee ala Widtrlagtrring btnutst, where car Sieherang and car Terrollkoamnung the holding rank a · aolehen ling ·· in «in« r Yertindungsmuffs, for example, waves on the inside ·· it · d ·· part of the terbimdungs «Wipe the seal-class on the al · Hingeteg consistent around the sealing ring Ttrlauftndtn Widsr- • in ftdtmdtr Halt · - or Bpr eier ing aufgtaelm can, jtdooh in a further Au · - Lead forming also directly added to the ring mounting flange within its own recess can

Hai Torttilhaftt Vtittrgtttstellung tea Irfindungtprineiy ·· can also be realized by the fact that d «r ¥ id« rlagtrrlng ala rom Diohtungtring unathingig ··, j «dooh with dlttBtm su« intr Bautlnhtlt rereinte · on- • lattitohtt in tioh «tarr ··, gttonder * ·· construction element with little resembles an “ylindrieo” input method ß does ibt re I for dl · HingdthhungeBone and then with a conical Bingabechnitt as a support area for the ring wedge one of · SehtangsrInge ■ is designed, with this Viderlagerring Im Connection to its conical support zone has another

- 8 -009847/0354 - '■' '■ £ * ¥ * *

aylindrieohan Abeohnitt aar Axialabetütiuag d ·· Wid * rlagarrinfta in a Teriiadaageauffe * can.

Bai an aolokaa aaführungunf «fore dtr discovery beeteht dar aigaatlioha DiehtuagariBg ltdlflieh ame drai aioh axial amainandarrailiamdan Ulf sanaa, nisllah tiatr Keilringion ·, one lingdehmaagssone and one », one rauMfeete bracket dta llagaa gevinrleiitemden line Bafeatigungaflanaohaa. The abutment ring restored here is based on a modified component, ieiapielewaiaa made of metal, Eamatatoff, iteinaeee or »Onatigea materials.

All diaaa Yorgeeehlageaen Aueführungefomen dee Irfindungegegenetandea elfmec LiOH in excellent be HaBa dasu _t in hoof fen tob Haffamrohran aagawendet, wherein β · in dleeea XueaasaBhaag just fall aöglioh iet, a WmIiOH iuaaamangtfalte Dichtungering abutment ring laueinhai-k ianerhal * aiaer Terbindungeauffe a · Muffenrohrea oiafagoaeea to keep.

live theeer * ing * f ο ··· η · η Execution iet ··

009847/0354 BAD

but also possible, tin «Diohtungaring-Baueinheit der new "n Auafuarung also fir" loh all · in, la uninputed Zuatand sa rerwhomden.

ill · in old ttr · r turning d ·· n «u« n Diohtangaprinsipea at Muffenremrem and but di · «rxi« lt «n Ter-fceil · 4 · γ Brfimdvm« ImI far · »not expected. Ti «lB« hr kajui der Brf lmdmnf »c« g «netand auoh la der V« l · · ν · 1ΐ · Γ§ # · ΐ * 1ΐ · ΐ if the ai-k conical al · ameh bit » ylindrieoher ftütssene auegevfUi-l · '! · abutment ring ale TerbiadtiMgnmf t · * ur Tertlmdu «» uffenloeer lehre auegebildei iet, the eeider- • egg-la bucket, dvxeli the ml · Kempenaater-looking middle part of the Mufeyfe laid eetrieoh aaage leads it, by also ma «ylindriaohe socket parts ml · itutaen fte the ring expansionaione" towards the middle j · conically widened hoof feneons * to 4bat the longitudinal wedges of the hehtungarimgea anaehli · - ien.

The used abutment then fulfills the necessary abatement of the biohtunga

- 10 -

BATH ORIGINAL

0098A7 / 0354

ring ·· «in« double ammunition insofar as «fts both i «linn · wear a counterbalance act ··« becomes «1 · dab ·! ftuoh BOgl «leh dl · represents the actual connection socket · In achieving dlestr execution, alao ■ Tortail is also accurate, even without a monkey naoh dsm glslohsn Prinsip des seleattfttigea Toleranaauagleiohea and the indirect Anpaaaang avlaohon Terbindusgerohr «nd« n and Terbindangaaiaff · alteinamAWr to be banded.

Baalt now also guarantees that the Diohtungaring at dieaen Auaftihrungaforaon aa Socket part fixed bs «. axially Terechiebegeickert let, gate supports, the socket ends as Siohtungaringhaltar aaasu form by the Singbefeatigungaflanaoh dea sealing ring the muff · or the sleeve holding the ring mounting flange non-poisoned.

In this context another can be found A number of different approaches, one of which is fastening with the help of claw-like Lanyard is also possible, wis too

- 11 -

009847/0354

defining the led around the socket end front edge Ring mounting flange through radial acting clamping elements, such as wire or Flaclio steel rings Ebeneo is possible, as are overshoot rings could be used with a bracket-like effect «

In summary, there is thus the inventors have succeeded in an excellent manner a completely new _t Diehtungeprinsip to realize hei which the lnwendung here place gasket of a now universal use is made accessible. The invention can even go a decisive step further, namely if it practically forms this inventive seal itself as a sleeve and only provides a clamping ring or the like that holds together the sealing ring parts forming a sleeve. Because the object of the invention is able to adapt it individually to all pipe contents that occur in practice, it is far superior to all previously known explanations, which means that the required level of invention in the context of the invention was easily hesitant because of the made technical progress

η π Q ga 7 / p ^ t- h

is luminous and obvious.

Because of the better understanding of the finding reference is made to the following description of the design examples given in the accompanying drawings)

Fig. 1 is an axial section view of a socket pipe connection in the uncoupled state with a Sighting ring, which has an abutment ring formed by the ring itself,

2 shows the pipe connection in the coupled state,

3 shows a further pipe connection of socket pipes with the same blohtungering principle,

Fig · 4- the sealing ring principle applied as Socket for connecting socketless pipes,

5 a socket pipe connection bit an abutment ring designed as a special component,

- 13 -

00-98A7 / 0354

6 shows a possible application of the invention as a sleeve for connecting a sleeve Pipes, wobai a pipe section in the still uncoupled and the other pipe section is in the already coupled State is

Pig »7 another embodiment of the same Principle altogether two Yarbindungsroutels with a diameter of the lower part,

Pig. 8 a bar position in which the Sealing ring itself is designed as a sleeve, and iat held by a clamping ring, and

Pig. 9 to 12 show embodiments wherein for mounting the ·· ring attachment aflat, clap-like effect · overlapping rings are seen through the door, all pig. cut, where τοη the Pig. 3 starting for the sake of simplicity, only one at a time Section side is shown on one side of the center line.

In the case of the seal designs shown, 1st

-H-

009047/0354

each with -Jl denotes a connecting pipe and B denotes a connecting sleeve. The sealing ring used for the tight connection between pipe A and connection sleeve B is a so-called three-zone ring 10, 11, with an annular wedge zone 10 at its sealing end, to which an annular expansion zone joins in the axial direction, which finally merges into a ring fastening flange 12 » To seal off the pipe A and the connecting sleeve B, an abutment ring C arranged concentrically around the three-zone ring 10-12 is also required in this embodiment.

This abutment ring is designed in the exemplary embodiments according to FIGS. This form of an annular ridge 13 abutment ring has "ah © its free loading a conical support surface, whereby the Neigungeeckräge the Htigtmg üer slope 10a of Ringkeilsone 10 corresponds to" On dieee inclined area- 14 sehließt axially sin grader Absehr:.>". \. \ 15. to _f his own .axiale I.äfif » ßi & air.ia.lt

C 0 9 5 i 7/0 S S -A

Length of the ring expansion zone 11 in the untensioned state of the ring 10, 12 exceeds, eo that when transferring of the sealing ringβ in its tight position according to the Pig. 2-4 the ring expansion zone 11 is loaded in the sense of an axial stretching. If the final assembly position is reached, the ring wedge zone 10 is below the Retraction action against the stretching direction with wedge clamping against the support surface 14 of the abutment ring axially tightened and thus securely sealed.

With these sighting ring designs, a retaining ring 16 can also be provided, which either arranged in the interior of the apex zone between the ring web 13 and the ring fastening flange 12 is in order to give the ring 10-12 a fixed space Stop au give so that it is absolutely fixed in order to achieve the effect of the invention. This retaining ring 16 can also be in a special receiving ring groove 17 dee Ringbefeetigungeflanschee 12 may be provided.

In the framework of this Ringai tour can - how fig. 4 shows - an eoloher ring also eelbet as a hoof serve, in which case only the outside around die'Ringteile

009847/0354

Τ?

around a clamp-like holding member 18 is provided can be.

The abutment ring required to achieve the aim of the invention can, however, also differ designed as a special component from the above as shown in FIG. Here, a cross-section is approximately Z-shaped Abutment ring 0 used, starting from one end via a cylindrical section 19 in a conically widened part 2o merges, which finally into another cylindrical support part 21 ends. Here, too, the sealing ring 10-12 is at the end of the abutment ring 19 held in place. The ratios are again chosen so that the axial length of the cylindrical Part 19 is longer than the axial length of the Expansion zone 11 in the unstressed state of the ring 10-12 »This version, in which the abutment ring C utod the sealing ring 10-12 into a contiguous Structural unit are combined, can now in practice either on their own or also into a socket B of a socket pipe 22 with the aid of

- 17 -

009847/0354

Casting compound 23 be poured, like this one. 5 shows.

A further development of the subject matter of the invention is also achieved if the abutment ring 0 is designed as a sleeve B at the same time, like this the Pig. 6-12 show. The sleeves B shown here are used to connect sleeveless pipes A with one another. In these connecting sleeves, the cross-sectional course is selected so that on the one hand a conical support surface 14 and on the other hand a straight section 15 is formed, which in turn has a length that exceeds the axial length of the ring expansion zone in the untensioned state of the ring Joining the pipe connection, the ring expansion zone 11 is stretched, so that in the coupled state the retraction effect and thus the wedge clamping is achieved. It is important that the ring 10-12 is held in the area of its ring mounting flange 12 in a space-tight manner at the socket end. This can be achieved in that - as FIG. 6 shows - the sleeve at the end forms a receiving groove 24 into which the ring

- 18 -

009847/0354

fastening flange 12 engages and additionally can still be held by a retaining ring 16. According to FIGS. 7 and 8, the ring fastening flange 12 the female-free socket in the area of the straight section 15 also overlap and be held by a retaining ring 16 *

A sliding ring 25 could also be used for fastening, which is bent over in the area of the ring fastening zone 12 as it extends over it Has end portions 25a. This tiberschiebering 25 can in one piece - as shown in FIG. 9 - as well as in several parts, as shown in FIG. Play 10-12. AuQh could «a claw-like training 12 of the ring fastening bone 12 is realized "the old and without Klaamerringe 25 are carried out could be.

Bb is not understood within the scope of the invention It goes without saying that all the embodiments shown and described are merely possible Execution examples are to be viewed. Bs is itself «

- 19 -

ORIGINAL

009847/0354

understandable that hierron also deviates Solution paths would be possible if they provided the principle of the invention in the combination of a wedge ring zone with a ring expansion zone with an axial stretching-tensile effect and fixed mounting flange the whole realize in connection with an abutment ring, to be seen as belonging to the invention.

- 20 -

009847/0354

Claims (16)

Expectations : 1. Seal pipe joints below Use of an elastic sealing ring, which is located within a between, the outer surface of the to connecting pipe end and the inner jacket surface of a Connection sleeve left sleeve gap is added, characterized in that the sealing ring (10-12) from its diohtendseiten Ring end face from over parts of an axial length away with the formation of a wedge-shaped cross-section, one on at least one side on the outer circumferential surface of the ring tapered towards the opposite end of the ring Has ring wedge zone (10) to which the cross-sectional thickness of the ring wedge zone is attached in the axial direction falling below, constant over a further axial section of the Ring Quersohnlfcbslänge A ring expansion zone (11) with a smaller cross-sectional thickness and axial Streok tensile force is connected, 009847/0354 192195B which ultimately form a ring holding means (24) and / or separate ring holding means (16 or 25) having ring fastening flange (12) passes over, and that the ring inner ring surface side is flat and protruding-free over the length of all ring zones and over the entire surface of the The outer circumferential surface of the connecting pipe end (A) rests, while the outer circumferential surface of the ring wedge zone is below axial retraction tension against the axial expansion of the Ring expansion one on one corresponding to the ring wedge zone conical ring support surface (14 or 20) running in the same direction, concentrically around the Ring arranged around the connecting sleeve inside Abutment rings s (C or 13 or B) with wedge clamps 1st supported, this abutment ring in axial Direction continued at least up to the axial length of the ring expansion zone and in the area (15 or 19) of the ring expansion zone of the sealing ring a separate axial length exceeding the axial length of the ring expansion zone in the relaxed state of the ring possesses, and that finally the sealing ring via its ring mounting flange in or approximately - II - 009847/0354 in the end area of the connecting sleeve and / or the abutment ring axially fixed in a spatially fixed manner is. 2. Seal according to claim 1, characterized in that that the tapered one running inclined in the same direction to the ring wedge zone (10) of the sealing ring Ring support surface (H) equipped abutment ring (13) than over the area of the ring mounting flange (12) with the ring zones of the sealing ring integrally connected and parallel to these approximately over their entire Axial length running away on the outer surface side e.g. on the inner surface of a connecting sleeve (B) supported ring web is formed. 3 * seal according to 'claim 2, characterized in that on the inside of the Yerbigung.8-apex between the sealing ring ions (10-12) and the ring web (13) concentric around the sealing ring running abutment ring a resilient Haltebzw. Expanding ring (16) is added. 4 «seal according to claim 2, characterized - III 00.9847 / 0354 shows that the resilient retaining or expanding ring (16) received directly in the ring mounting flange (12) within its own recess (17) is. 5. Seal according to claim 1, characterized in that the abutment ring (C) ale of the sealing ring (10-12) independent, but with this one Structural unit combined inelastic, separate structural element with at least one cylindrical inlet section (19) as a support area for the Ring expansion zone (11) and then with a conical ring section (20) as a support area for the Ring wedge zone (10) of the sealing ring is formed. 6. Sealing ring according to claim 5, characterized in that the abutment ring (C) has a further conical support zone (20) in connection with it cylindrical section (21). for axial support of the Has abutment ring in a Yerbindüngsmuffe (B). 7. Seal according to claim 5 and 6, characterized in that -IY- 009847/0354 indicates that a structurally combined sealing ring abutment unit (10-12 and 19-21) is held cast within a connecting sleeve (B) of a socket pipe (22). 8. Seal according to claim 5 to 7, characterized in that the with both conical and abutment ring equipped with a cylindrical support zone (14 and 15) as a connecting sleeve (B) for connection Sleeveless pipes (A) are formed, which on both sides have a central part acting through the compensator The radial plane laid on the socket is designed mirror-symmetrically by attaching to cylindrical socket end parts (15) as supports for the ring expansion zone (11) towards the center each conical widened socket zone (H) to support the ring wedge zones (10) of the sealing ring (10-12). 9 · Seal according to claim 8, characterized in that the sleeve ends act as a sealing ring holder are formed by the ring mounting flange (12) of the sealing ring (10-12) the sleeve (B) buw. -V- 009847/0354 the abutment ring (O) or the sleeve or the abutment ring holding the ring mounting flange encompasses. 10. Seal according to claim 9, characterized in that the ring fastening flange (16) is designed as a retaining claw encompassing the hoof end, 11. Seal according to claim 9 »characterized in that that the part of the ring fastening flange (12) which extends over the end of the hoof is also included a radial clamping or retaining ring (16) is provided. 12. Seal according to claim 9, characterized in that that the overlapping end of the ring fastening flange (12) by at least one clamp-like acting slip ring (25) is held. 13 · Seal according to. Claim 12, characterized in that that the clip-overshoe ring (25) from one to the other end of the sleeve is uninterrupted 009847/0354 extends continuously. 14. Seal according to claim 12, characterized in that that on each side of the socket there is a clamp. ÜberBchiebering (25) is provided in the middle part push the socket in front of each other " ■ 1 j. Seal according to claim 12 "to 14, characterized characterized in that the Kiammer slip rings (25) at its rear end ale the ring mounting flange (12) are deformed around or across. 16. Seal according to one of the preceding claims, characterized in that it itself designed as a connecting sleeve and secured by an outer clamping ring (18). - VH- 009847/0354 Blank page