NO310530B1 - pipe couplings - Google Patents
pipe couplings Download PDFInfo
- Publication number
- NO310530B1 NO310530B1 NO19994829A NO994829A NO310530B1 NO 310530 B1 NO310530 B1 NO 310530B1 NO 19994829 A NO19994829 A NO 19994829A NO 994829 A NO994829 A NO 994829A NO 310530 B1 NO310530 B1 NO 310530B1
- Authority
- NO
- Norway
- Prior art keywords
- pipe
- recess
- clamping ring
- connection according
- gasket
- Prior art date
Links
- 230000008878 coupling Effects 0.000 title claims description 54
- 238000010168 coupling process Methods 0.000 title claims description 54
- 238000005859 coupling reaction Methods 0.000 title claims description 54
- 230000000717 retained effect Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
- F16L37/092—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector
- F16L37/0925—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector with rings which bite into the wall of the pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
- F16L37/092—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector
- F16L37/0926—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector with an inner support sleeve arranged within the pipe
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints With Sleeves (AREA)
- Joints Allowing Movement (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Description
Oppfinnelsen vedrører en rørkobling, omfattende et koblingshus med en gjennomgående utsparing, en klemring slik innrettet at røret, ved tilkobling, kan føres inn i utsparingen og, etter innføring, fastholdes i utsparingen, idet klemringen er anbrakt i utsparingen, samt minst én ringpakning, f.eks. en O-ring, for tetning mellom utsparingen og det tilkoplede røret. The invention relates to a pipe coupling, comprising a coupling housing with a continuous recess, a clamping ring arranged so that the pipe, when connected, can be introduced into the recess and, after insertion, retained in the recess, the clamping ring being placed in the recess, as well as at least one ring gasket, f .ex. an O-ring, for sealing between the recess and the connected pipe.
En rørkobling av ovennevnte type er kjent fra NO-patent 149598. Koblingshuset består av to husdeler, slik at klemringen og den nærliggende pakningen kan anbringes mellom husdelene før disse forbindes ved hjelp av en gjengeforbindelse. Motsatt av klemringen, sett i forhold til rørets innføringsretning, ligger pakningen mot en endeflate på den ene husdelen. For å sikre at klemringen, etter tilkobling, kan fastholde røret i koblingshuset, har utsparingen i den andre husdelen et avsmalnende eller konisk parti som klemringen ligger mot. Klemringen er utformet med egnet tverrsnittsform som, i samvirke med nevnte avsmalnende parti, sørger for at røret fastholdes dersom røret, etter tilkobling, forsøkes trukket ut av koblingshuset. For å unngå at bl.a. temperaturøkning skal gi redusert klemvirkning mellom røret og klemringen (ved at røret mykner), kan den ene husdelen utformes med en indre støttehylse som ligger avstøttende innvendig i det tilkoplede røret, i det minste i et område som omgis av klemringen. A pipe coupling of the above type is known from NO-patent 149598. The coupling housing consists of two housing parts, so that the clamping ring and the nearby gasket can be placed between the housing parts before they are connected by means of a threaded connection. Opposite the clamping ring, seen in relation to the pipe's insertion direction, the gasket lies against an end surface on one housing part. To ensure that the clamping ring, after connection, can retain the pipe in the coupling housing, the recess in the second housing part has a tapered or conical part against which the clamping ring rests. The clamping ring is designed with a suitable cross-sectional shape which, in cooperation with the aforementioned tapering part, ensures that the pipe is retained if, after connection, the pipe is tried to be pulled out of the coupling housing. To avoid that i.a. increase in temperature should result in a reduced clamping effect between the pipe and the clamping ring (by the pipe softening), one housing part can be designed with an inner support sleeve that rests against the inside of the connected pipe, at least in an area surrounded by the clamping ring.
I bruk fungerer den kjente rørkoblingen meget godt. At koblingshuset består av to husdeler, for anbringelse av klemringen og den nærliggende pakningen i utsparingen, fordyrer imidlertid fremstilling og sammenkobling av rørkoblingen. Dessuten blir det flere mulige lekkasjeveier for fluid som strømmer gjennom rørkoblingen, og det er påkrevet med større godsmengde i råemnene for koblingshuset. In use, the known pipe connection works very well. However, the fact that the coupling housing consists of two housing parts, for placing the clamping ring and the nearby gasket in the recess, increases the cost of manufacturing and connecting the pipe coupling. In addition, there are more possible leakage paths for fluid flowing through the pipe coupling, and a larger quantity of goods is required in the raw materials for the coupling housing.
NO-patentsøknad 1999 1487 beskriver en kobling med et koblingshus som inneholder en klemring, en støttehylse i ett med en skive og en tetningsring. Disse elementer er NO patent application 1999 1487 describes a coupling with a coupling housing which contains a clamping ring, a support sleeve in one with a disc and a sealing ring. These elements are
ikke sperret inne i koblingshuset, men kan beveges ut av koblingshuset ved å passere et gjengeparti inne i koblingshuset. Gjengepartiet er beregnet til påskruing av koblingshuset på en rørende. Først etter slik påskruing er de indre deler i koblingshuset sperret mot å beveges ut av huset, ved at tetningsringen, som er det aksialt ytterste av elementene, trykkes mot endeflaten på rørenden. not locked inside the coupling housing, but can be moved out of the coupling housing by passing a threaded section inside the coupling housing. The threaded part is intended for screwing on the coupling housing on one end. Only after such screwing are the internal parts in the coupling housing blocked from moving out of the housing, by the sealing ring, which is the axially outermost of the elements, being pressed against the end surface of the pipe end.
EP-patentsøknad 0811801 viser et lignende prinsipp, bortsett fra at en andre tetningsring inne i koblingshuset danner anlegg mot klemringen og at en tredje tetningsring er innsatt i et ringspor i støttehylsen. EP patent application 0811801 shows a similar principle, except that a second sealing ring inside the coupling housing forms contact with the clamping ring and that a third sealing ring is inserted in an annular groove in the support sleeve.
GB-patent 2226861 viser et koblingshus som har en indre kanal med trinnvist økende diameter mot den enden som er rør skal innføres fra. Indre elementer i koblingshuset er innsatt fra denne enden. En hylse som inneholder en klemring er innpresset i partiet av kanalen med størst diameter, og hylsen har en konisk indre flate som klemringen blir komprimert mot. Hylsen virker her som en indre foring. Koblingen muliggjør ikke bruk av en støttehylse inne i røret. GB patent 2226861 shows a coupling housing which has an inner channel with gradually increasing diameter towards the end from which the pipe is to be inserted. Internal elements in the coupling housing are inserted from this end. A sleeve containing a clamping ring is pressed into the portion of the channel with the largest diameter, and the sleeve has a conical inner surface against which the clamping ring is compressed. The sleeve acts here as an inner lining. The coupling does not enable the use of a support sleeve inside the pipe.
DE-patentsøknad 4005826 viser en kobling dannet av to sammenskrudde husdeler. En skive med støttehylse holdes av den ene husdelen, og en klemring i den andre husdelen danner anlegg mot en konisk flate både i den andre husdelen og i skiven, slik at klemringen trykkes mot røret i to områder. Skiven med støttehylsen vil ikke holdes på plass uten at husdelene er sammenskrudd. DE patent application 4005826 shows a coupling formed by two screwed housing parts. A disk with a support sleeve is held by one housing part, and a clamping ring in the other housing part forms contact with a conical surface both in the other housing part and in the disk, so that the clamping ring is pressed against the pipe in two areas. The disc with the support sleeve will not be held in place without the housing parts being screwed together.
Med oppfinnelsen er det skaffet til veie en rørkobling som muliggjør sperring av skiven. Skiven hindrer derved at andre elementer i koblingshuset kan falle ut før koblingshuset er montert. With the invention, a pipe coupling has been provided which enables blocking of the disk. The washer thereby prevents other elements in the coupling housing from falling out before the coupling housing is mounted.
Rørkoblingen i henhold til oppfinnelsen omfatter et koblingshus tildannet av én eneste del, idet utsparingens ene endeparti har større tverrmål enn utsparingens motstående endeparti. Klemringen, og en eventuell ringpakning, kan fastholdes i utsparingen uten at koblingen er koblet til noe annet element. En skive med aksial gjennomstrømningsåpning er fastholdt mot aksial bevegelse i eller nær endepartiet med størst tverrmål, ved at skiven omfatter et sett ytre, aksialt ragende snepparmer, hver utformet med et utoverragende parti som kan fastholdes i et ringspor tildannet i endepartiet med størst tverrmål. Klemringen og en evt. ringpakning som er innsatt i koblingshuset er dermed sperret mot å falle ut av koblingshuset. The pipe coupling according to the invention comprises a coupling housing formed from a single part, one end part of the recess having a larger transverse dimension than the opposite end part of the recess. The clamping ring, and any ring gasket, can be retained in the recess without the coupling being connected to any other element. A disk with an axial flow opening is secured against axial movement in or near the end portion with the largest cross-sectional dimension, in that the disk comprises a set of outer, axially projecting snap arms, each designed with a projecting portion that can be retained in an annular groove formed in the end portion with the largest cross-sectional dimension. The clamping ring and any ring gasket that is inserted in the coupling housing are thus prevented from falling out of the coupling housing.
I den etterfølgende delen av beskrivelsen vil det med henvisning til den vedføyde tegningen bli redegjort nærmere for en foretrukket utførelse av oppfinnelsen. Fig. 1 viser et lengdesnitt gjennom en rørkobling i henhold til oppfinnelsen, som omfatter et koblingshus med en gjennomgående utsparing, en i utsparingen anbrakt klemring innrettet til fastholding av et rør ført inn i utsparingen, og to pakninger for tetning mellom det tilkoplede røret og utsparingen. Fig. 2 viser i perspektiv middel innrettet til fastholding av klemringen og den nærliggende pakning inne i utsparingen, idet klemringen, pakningen og fastholdingsmiddelet ved montering blir ført inn i huset gjennom utsparingens endeparti med størst tverrmål. In the following part of the description, a preferred embodiment of the invention will be explained in more detail with reference to the attached drawing. Fig. 1 shows a longitudinal section through a pipe coupling according to the invention, which comprises a coupling housing with a through recess, a clamping ring placed in the recess designed to hold a pipe led into the recess, and two gaskets for sealing between the connected pipe and the recess . Fig. 2 shows, in perspective, means arranged for retaining the clamping ring and the nearby gasket inside the recess, the clamping ring, the gasket and the retaining means being inserted into the housing during assembly through the end part of the recess with the largest transverse dimension.
Den viste rørkoblingen omfatter et koblingshus 1 med en gjennomgående utsparing 2, en klemring 4 anbrakt i utsparingen 2 og pakninger 5, 14, f.eks. O-ringer, for tetning mellom utsparingen 2 og et tilkoplet rør 3. Klemringen 4 er på kjent måte slik innrettet at røret 3, ved kobling, kan føres inn i utsparingen 2 og, etter kobling fastholdes i utsparingen 2. Koblingshuset er tildannet av én eneste del 1, og utsparingens 2 ene endeparti 7 har større tverrmål enn utsparingens 2 motstående endeparti 8. Mellom utsparingens endepartier 7, 8 er et mellomliggende, avsmalnende parti 9. Det avsmalnende partiet 9 kan f.eks. forløpe rettlinjet mellom endepartiene 7, 8; dvs. at det er rent konisk. Pakningene 5, 14 er anbrakt i ringspor 13, 6 tildannet i utsparingen 2. Ringsporet 13 befinner seg nær det mellomliggende, avsmalnende partiet 9, og ringsporet 6 befinner seg nær endepartiet 8 med minst tverrmål. The pipe coupling shown comprises a coupling housing 1 with a through recess 2, a clamping ring 4 placed in the recess 2 and gaskets 5, 14, e.g. O-rings, for sealing between the recess 2 and a connected pipe 3. The clamping ring 4 is arranged in a known manner so that the pipe 3, when connected, can be guided into the recess 2 and, after connection, retained in the recess 2. The coupling housing is formed by one only part 1, and one end part 7 of the recess 2 has a larger transverse dimension than the opposite end part 8 of the recess 2. Between the end parts 7, 8 of the recess is an intermediate, tapering part 9. The tapering part 9 can e.g. run in a straight line between the end parts 7, 8; i.e. that it is purely conical. The gaskets 5, 14 are placed in annular grooves 13, 6 formed in the recess 2. The annular groove 13 is located close to the intermediate, tapering portion 9, and the annular groove 6 is located close to the end portion 8 with the smallest transverse dimension.
Klemringen 4 er anbrakt ved utsparingens 2 avsmalnende parti 9 nær pakningen 5. Videre er klemringen 4 tildannet med egnet tverrsnittsform som sørger for at klemringen 4, i samvirke med det avsmalnende partiet 9, fastholder røret 3, dersom røret 3, etter tilkobling, forsøkes trukket ut fra koblingshuset. Dette kan oppnås ved at klemringens ene endeparti er trekantformet, slik at sideflaten vendt mot det avsmalnende partiet 9 skrår innover mot røret 3 tilsvarende det avsmalnende partiet 9. Sideflaten i det trekantformede partiet vendt mot røret 3 kan skråne tilsvarende utover fra røret 3. Likeledes forløper partiet av klemringens 4 sideflate vendt mot røret 3 hovedsakelig parallelt med røret 3, og i overgangen mellom sideflatene som vender innover har klemringen en rundtgående ribbe som danner en egg for innskjæring i rørveggen. Dermed vil klemringen 4, ved et eventuelt forsøk på uttrekning av røret 3 fra koblingshuset 1, føres oppover langs utsparingens 2 avsmalnende parti 9 og komprimeres mot røret 3, slik at ribben trykkes ytterligere inn i rørveggen og det parallelle partiet klemmer ytterligere mot røret 3, for sikring mot uttrekning fra koblingshuset 1. For å tillate at røret 3, ved innføring i koblingshuset 1, kan passere pakningen 5 uten nevneverdig motstand, kan klemringen 4 være utformet med en skråflate som i en viss grad ekspanderer pakningen 5 når klemringen 4 trykkes innover i koblingsdelen ved innføring av røret 3. The clamping ring 4 is placed at the tapered part 9 of the recess 2 close to the gasket 5. Furthermore, the clamping ring 4 is formed with a suitable cross-sectional shape which ensures that the clamping ring 4, in cooperation with the tapering part 9, holds the pipe 3, if the pipe 3, after connection, is attempted to be pulled from the junction box. This can be achieved by one end part of the clamping ring being triangular, so that the side surface facing the tapering part 9 slopes inwards towards the pipe 3 corresponding to the tapering part 9. The side surface in the triangular part facing the pipe 3 can slope correspondingly outwards from the pipe 3. the part of the side surface of the clamping ring 4 facing the pipe 3 essentially parallel to the pipe 3, and in the transition between the side surfaces facing inwards, the clamping ring has a circumferential rib which forms an egg for cutting into the pipe wall. Thus, in the event of an attempt to extract the pipe 3 from the coupling housing 1, the clamping ring 4 will be guided upwards along the tapered part 9 of the recess 2 and compressed against the pipe 3, so that the rib is pressed further into the pipe wall and the parallel part squeezes further against the pipe 3, for protection against extraction from the coupling housing 1. In order to allow the pipe 3, when inserted into the coupling housing 1, to pass the gasket 5 without significant resistance, the clamping ring 4 can be designed with an inclined surface which expands the gasket 5 to a certain extent when the clamping ring 4 is pressed inwards in the connecting part when inserting the pipe 3.
Klemringen 4 og den nærliggende pakningen 5 er ført inn i utsparingen 2 gjennom endepartiet 7 med størst tverrmål, og fastholdes ved hjelp av middel skiven 12 med snepparmer 10. Skiven 12 er ført inn i det samme endepartiet 7 etter at klemringen 4 og pakningen 5 anbrakt i utsparingen 2. Fastholdingsmiddelet for klemringen 4 og pakningen 5, eventuelt også for innvendig avstøtning av røret 3, omfatter i det viste eksempel en skive 12 utstyrt med et sett ytre snepparmer 10 slik innrettet at utoverrettede partier (haker) 16 på snepparmene 10 kan fastholdes i ringsporet 13 nær utsparingens 2 avsmalnende parti 9, og snepparmene 10 kan samtidig utgjøre et anslag for pakningen 5. Snepparmenes 10 utoverrettede partier eller haker 16 blir, ved innføring i koblingshuset 1, forskjøvet med anlegg mot utsparingens 2 sidevegg, idet snepparmene 10 bøyes elastisk innover, inntil ringsporet 13 nås, hvoretter snepparmene 10 fjærer tilbake og de utoverrettede partier eller haker 16 danner låsende samvirke med ringsporet 13. Ringsporet 13 kan som vist ha mindre dybde i et område ved snepparmene 10 enn ved pakningen 5. For innvendig avstøtning av røret 3 omfatter skiven 12 en indre støttehylse 11 i ett med skiven 12, og som kan forløpe fra rørets 3 indre ende til i det minste området ved klemringen 4. Støttehylsen 11 blir liggende tett an mot det tilkoplede rørets 3 indre vegg. Skiven 12 vil dermed utgjøre et endeanslag for røret 3 ved innføring i koblingshuset 1. Skiven 12 for fastholding av klemringen 4 og pakningen 5, eventuelt også for innvendig avstøtning av røret 3, kan f. eks. tildannes av plastmateriale. The clamping ring 4 and the nearby gasket 5 are introduced into the recess 2 through the end part 7 with the largest transverse dimension, and are held by means of the middle disc 12 with snap arms 10. The disc 12 is introduced into the same end part 7 after the clamping ring 4 and the gasket 5 have been placed in the recess 2. The retaining means for the clamping ring 4 and the gasket 5, possibly also for internal repulsion of the pipe 3, in the example shown comprises a disc 12 equipped with a set of outer snap arms 10 so arranged that outwardly directed parts (hooks) 16 on the snap arms 10 can be retained in the ring groove 13 near the tapered part 9 of the recess 2, and the snap arms 10 can simultaneously form a stop for the gasket 5. The outwardly directed parts or hooks 16 of the snap arms 10 are, when inserted into the coupling housing 1, displaced against the side wall of the recess 2, as the snap arms 10 are flexed elastically inwards, until the ring groove 13 is reached, after which the snap arms 10 spring back and the outwardly directed parts or hooks 16 form a locking cooperation with the annular groove 13. As shown, the annular groove 13 can have a smaller depth in an area at the snap arms 10 than at the gasket 5. For internal repulsion of the tube 3, the disc 12 comprises an inner support sleeve 11 in one with the disc 12, and which can extend from the inner part of the tube 3 end to at least the smallest area at the clamping ring 4. The support sleeve 11 lies close to the inner wall of the connected pipe 3. The disc 12 will thus constitute an end stop for the pipe 3 when inserted into the coupling housing 1. The disc 12 for retaining the clamping ring 4 and the gasket 5, possibly also for internal repulsion of the pipe 3, can e.g. formed from plastic material.
Rørkoblingen omfatter således et koblingshus 1 som bare omfatter én eneste del, slik at både fremstilling og sammenkobling av to husdeler bortfaller. Sperring av klemringen 4 og pakningen 5 i koblingshuset og holding av disse i korrekt stilling inntil røret 3 innføres bevirkes av skiven 12, som monteres meget enkelt ved å trykkes aksialt inn i koblingshuset under elastisk bøyning av snepparmene 10 og sperres ved at hakene 16 griper inn i ringsporet 13. Snepparmene 10 hindres i å bøyes ut av ringsporet 13 etter at røret 3 er innført, ved at enden av røret 3 fyller hulrommet mellom støttehylsen 11 og snepparmene 10 når støttehylsen 11 finnes, eller ved at enden av røret 3 ligger mot snepparmene 10 med sin utside og hindrer innbøyning av snepparmene 10 på grunn av sin stivhet. The pipe coupling thus comprises a coupling housing 1 which only comprises a single part, so that both the manufacture and connection of two housing parts are omitted. Locking of the clamping ring 4 and the gasket 5 in the coupling housing and holding these in the correct position until the pipe 3 is inserted is effected by the disc 12, which is mounted very simply by being pressed axially into the coupling housing under elastic bending of the snap arms 10 and is blocked by the hooks 16 engaging in the ring groove 13. The snap arms 10 are prevented from being bent out of the ring groove 13 after the tube 3 has been inserted, by the end of the tube 3 filling the cavity between the support sleeve 11 and the snap arms 10 when the support sleeve 11 is present, or by the end of the tube 3 lying against the snap arms 10 with its outside and prevents bending of the snap arms 10 due to its rigidity.
Rørkoblingen i henhold til oppfinnelsen er særlig fordelaktig ved tilkobling av plastrør, men kan selvsagt benyttes ved tilkobling av et hvert annet rør. Koblingshuset 1 kan tildannes av metall, f.eks. messing. Dette er imidlertid ikke til hinder for at koblingshuset 1 ved behov kan tildannes av annet egnet materiale. Skiven 12 for fastholding av klemringen 4 og den nærliggende pakningen 5, eventuelt også med støttehylse for innvendig avstøtning av røret 3, kan ved behov tildannes av annet egnet materiale enn plast. Koblingshuset 1 kan forbindes med en annen gjenstand, f.eks. et annet koblingshus, ved hjelp av en gjengeforbindelse eller annen egnet forbindelse, samt tettes med en egnet pakning, f.eks. en O-ring 15, slik som vist. The pipe connection according to the invention is particularly advantageous when connecting plastic pipes, but can of course be used when connecting every other pipe. The coupling housing 1 can be made of metal, e.g. brass. However, this does not prevent the coupling housing 1 from being made of other suitable material if necessary. The disk 12 for holding the clamping ring 4 and the nearby gasket 5, possibly also with a support sleeve for internal repulsion of the pipe 3, can be made of a suitable material other than plastic if necessary. The coupling housing 1 can be connected to another object, e.g. another coupling housing, by means of a threaded connection or other suitable connection, and sealed with a suitable gasket, e.g. an O-ring 15, as shown.
I den viste utførelse omfatter rørkoblingen en pakning 5 anbrakt nær klemringen 4. Det er imidlertid ikke påkrevet at pakningen 5 inngår i rørkoblingen, og den kan derfor utelates i tilfeller hvor det bare er behov for pakningen 14 i endepartiet 8 med minst tverrmål. Dermed vil klemringen 4 bli liggende direkte mot de utoverbøyde partier eller haker 16 på snepparmene 10. In the embodiment shown, the pipe coupling includes a gasket 5 placed near the clamping ring 4. However, it is not required that the gasket 5 be included in the pipe coupling, and it can therefore be omitted in cases where there is only a need for the gasket 14 in the end portion 8 with a minimum transverse dimension. Thus, the clamping ring 4 will lie directly against the outwardly bent parts or hooks 16 on the snap arms 10.
Claims (9)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO19994829A NO310530B1 (en) | 1999-10-04 | 1999-10-04 | pipe couplings |
| EP00964795A EP1218660A1 (en) | 1999-10-04 | 2000-10-02 | Tube coupling |
| AU75629/00A AU7562900A (en) | 1999-10-04 | 2000-10-02 | Tube coupling |
| PCT/NO2000/000323 WO2001025672A1 (en) | 1999-10-04 | 2000-10-02 | Tube coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO19994829A NO310530B1 (en) | 1999-10-04 | 1999-10-04 | pipe couplings |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO994829D0 NO994829D0 (en) | 1999-10-04 |
| NO994829L NO994829L (en) | 2001-04-05 |
| NO310530B1 true NO310530B1 (en) | 2001-07-16 |
Family
ID=19903838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO19994829A NO310530B1 (en) | 1999-10-04 | 1999-10-04 | pipe couplings |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1218660A1 (en) |
| AU (1) | AU7562900A (en) |
| NO (1) | NO310530B1 (en) |
| WO (1) | WO2001025672A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010010176A1 (en) * | 2010-03-04 | 2011-09-08 | Festo Ag & Co. Kg | Connecting device for a fluid line |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1520742A (en) * | 1975-07-30 | 1978-08-09 | Guest J D | Couplings for tubes |
| US4229025A (en) * | 1978-04-25 | 1980-10-21 | Perfection Corporation | Stab-type coupling |
| NZ264022A (en) * | 1994-07-15 | 1998-02-26 | Hansen Dev Ltd | Pipe coupling comprising a body part, a rotatable sleeve and a circular band |
| US5468028A (en) * | 1994-12-19 | 1995-11-21 | Dana Corporation | Quick connect tube couplings |
-
1999
- 1999-10-04 NO NO19994829A patent/NO310530B1/en not_active IP Right Cessation
-
2000
- 2000-10-02 EP EP00964795A patent/EP1218660A1/en not_active Withdrawn
- 2000-10-02 AU AU75629/00A patent/AU7562900A/en not_active Abandoned
- 2000-10-02 WO PCT/NO2000/000323 patent/WO2001025672A1/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| EP1218660A1 (en) | 2002-07-03 |
| NO994829L (en) | 2001-04-05 |
| NO994829D0 (en) | 1999-10-04 |
| WO2001025672A1 (en) | 2001-04-12 |
| AU7562900A (en) | 2001-05-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM1K | Lapsed by not paying the annual fees |