DK171517B1 - Pipe fitting, casing with such pipe fitting and holding device for use in mounting the pipe fitting to the casing - Google Patents
Pipe fitting, casing with such pipe fitting and holding device for use in mounting the pipe fitting to the casing Download PDFInfo
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- DK171517B1 DK171517B1 DK57594A DK57594A DK171517B1 DK 171517 B1 DK171517 B1 DK 171517B1 DK 57594 A DK57594 A DK 57594A DK 57594 A DK57594 A DK 57594A DK 171517 B1 DK171517 B1 DK 171517B1
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- casing
- pipe fitting
- trays
- pipe
- holding
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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
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
- F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing
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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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
- F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
DK 171517 BlDK 171517 Bl
Opfindelsen angår en rørendefitting til montering på et foldet foringsrør af plast, fortrinsvis polyethylen.The invention relates to a pipe fitting for mounting on a folded plastic casing, preferably polyethylene.
Det er kendt at fore et rør ved deri at indsætte eller indlægge et foringsrør, idet sidstnævnte inden indlægningen er 5 foldet, dvs. trykket ind i den ene side. Idet foringsrøret ved • hver ende forsynes med en endefitting i form af en plade, dan ner foringsrøret en slags ballon. Ved at der til foringsrørets indre føres damp, vil dette rør opvarmes og "folde sig ud", og når der så tilføres trykluft, vil foringsrøret udvide sig 10 lidt. Dampen og trykluften tilledes til og bortledes fra foringsrørets indre via nogle huller i de nævnte plader, hvilke huller normalt fremstilles in situ. Der kan herved samle sig plastspåner i foringsrøret, og dise plastspåner kan senere give anledning til blokering af hullerne, så at damp/trykluft 15 ikke kan passere tilfredsstillende. Fremstillingen af hullerne in situ er også ret tidskrævende.It is known to insert a tube by inserting or inserting a casing therein, the latter being folded before insertion, ie. pressed into one side. As the casing at each end is provided with an end fitting in the form of a plate, the casing forms a kind of balloon. By supplying steam to the interior of the casing, this tube will heat and "unfold", and when compressed air is supplied, the casing will expand slightly. The vapor and compressed air are fed to and discharged from the casing via some holes in said plates, which holes are normally produced in situ. Plastic chips may thereby accumulate in the casing, and these plastic chips may subsequently cause the holes to be blocked so that steam / compressed air 15 cannot pass satisfactorily. Making the holes in situ is also quite time consuming.
Det er formålet med opfindelsen at anvise en rørendefitting af den ovenfor nævnte art, og som er lige klar til brug (uden at man først skal bore huller), og som desuden kan anvendes flere 20 gange.SUMMARY OF THE INVENTION It is an object of the invention to provide a pipe fitting of the above-mentioned type, which is equally ready for use (without first having to drill holes), and which can furthermore be used several times.
Rørendefittingen ifølge opfindelsen er ejendommelig ved, at den består af en plade af plast, fortrinsvis polyethylen, med et eller flere gennemgående huller, og en fra den ene side af pladen - i hovedsagen vinkelret på denne - udragende første 25 rørstuds, hvis tværsnit har en ydre kontur svarende til den ydre kontur af tværsnittet af det foldede foringsrør, og som omslutter det område af pladen, hvori hullet eller hullerne findes, og en fra den anden side af pladen - i hovedsagen vinkelret på denne - udragende anden rørstuds med i hovedsagen 30 cirkulært tværsnit, og som ligeledes omslutter det nævnte område af pladen, hvor hullet eller hullerne findes. Herved opnås, at rørendefittingen - efter at dennes første rørstuds er blevet svejset til det foldede foringsrør - umiddelbart kan anvendes, idet operatøren ikke skal til at udføre et større DK 171517 B1 2 borearbejde på rørendefittingen. Den anden rørstuds kan anvendes til svejsning på en særlig trækdel eller - mere teoretisk - til svejsning på et rør med cirkulær rørende.The pipe fitting according to the invention is characterized in that it consists of a plate of plastic, preferably polyethylene, with one or more through holes, and a projecting first 25 pipe nozzle, which is generally perpendicular to it, having a cross-section having a cross-section thereof. outer contour corresponding to the outer contour of the cross-section of the folded casing and enclosing the area of the plate in which the hole or holes are located and a second tube protrusion projecting from the other side - generally perpendicular thereto - 30 circular cross-section and also enclosing said area of the plate where the hole or holes are located. This results in the fact that the pipe fitting - after its first pipe butt has been welded to the folded casing - can be used immediately, since the operator does not have to carry out a large drilling job on the pipe fitting. The second pipe nozzle can be used for welding on a special tensile member or - more theoretically - for welding on a tube with circular pipe.
Rørendefittingen kan anvendes flere gange, idet man, efter at 5 den har været anvendt første gang, afsaver den fra foringsrøret nogenlunde på svejsestedet. Rørendefittingen kan da bruges påny i forbindelse med et andet foringsrør.The pipe fitting can be used several times, after having been used for the first time, it is sealed off from the casing approximately at the welding site. The pipe fitting can then be reused in connection with another casing.
Ifølge opfindelsen kan den første rørstuds have en vægtykkelse i hovedsagen svarende til foringsrørets vægtykkelse, hvorhos 10 der til den anden rørstuds, fortrinsvis ved svejsning, kan • være tilsluttet et med øje forsynet trækhoved, f.eks. udformet som et i hovedsagen halvkalotformet legeme med mindst én lille ventilationsåbning, hvorigennem varm gas, såsom damp, kondensvand og trykluft, som er på vej bort fra foringsrøret, kan 15 slippe væk. Derved opnås, at rørendefittingen efter dennes fastsvejsning på foringsrøret straks er klar til at kunne trækkes (flyttes) via trækhovedets øje, hvis der er behov herfor.In accordance with the invention, the first pipe nozzle may have a wall thickness substantially equal to the wall thickness of the casing, wherein, to the second pipe nozzle, preferably by welding, a tensile head may be connected, e.g. designed as a generally semi-hollow body with at least one small vent opening through which hot gas, such as steam, condensation water and compressed air, which is on its way away from the casing, can escape. This results in the fact that, after its welding on the casing, the pipe fitting is immediately ready to be pulled (moved) through the eye of the pull head, if needed.
Desuden kan ifølge opfindelsen rørendefittingen være beregnet 20 til foringsrør med en diameter på 50 - 500 mm, fortrinsvis 100 - 400 mm, især 150 - 300 mm. Rørendefittingen har vist sig særlig hensigtsmæssig at anvende ved disse dimensioner af foringsrøret.In addition, according to the invention, the pipe fitting may be designed for casings having a diameter of 50-500 mm, preferably 100-400 mm, especially 150-300 mm. The pipe fitting has proved particularly convenient to use in these dimensions of the casing.
Fremdeles kan ifølge opfindelsen den første rørstuds have 25 varierende vægtykkelse, idet størrelse og form af denne rørstuds hulareal - eller arealer - i det mindste kan svare til størrelsen og formen af hularealet af hullet eller hullerne i pladen. Herved opnås, at der vil være forholdsvis meget plastmateriale til rådighed til svejsningen ved den første rør-30 studs.Still, according to the invention, the first wall thickness of the first tube may have 25 varying wall thickness, the size and shape of the hole area - or areas - of this tube can at least correspond to the size and shape of the hole area of the hole or holes in the plate. Hereby it is obtained that relatively much plastic material will be available for welding at the first pipe-30 studs.
Ifølge opfindelsen kan den første rørstuds i hovedsagen have form som et massivt C, hvor der i hvert af C'ets grene er DK 171517 B1 3 tildannet et gennemgående hul, der fortrinsvis er nyreformet. Denne facon af den første rørstuds har det vist sig særlig praktisk at arbejde med.According to the invention, the first pipe butt can generally take the form of a solid C, in which in each of the branches of the C there is formed a through-hole, which is preferably kidney-shaped. This form of the first pipe butt has proved particularly practical to work with.
Opfindelsen angår også et foringsrør, som i hvert fald ved sin 5 ene ende er forsynet med en rørendefitting ifølge opfindelsen. Herved opnås, at en meget driftssikker bortledning af damp, kondensvand m.m. kan ske.The invention also relates to a casing which is provided at least at one end with a pipe fitting according to the invention. This results in a very reliable discharge of steam, condensation water and the like. can happen.
Desuden kan foringsrøret ved begge ender være forsynet med en rørendefitting ifølge opfindelsen. Derved opnås meget let 10 klargøring af det foldede foringsrør til tilføring af damp, trykluft m.m.In addition, the casing at both ends may be provided with a pipe fitting according to the invention. This provides very easy preparation of the folded casing for supplying steam, compressed air and the like.
Endvidere angår opfindelsen en holdeindretning til brug ved montering af en rørendefitting ifølge opfindelsen på et foringsrør ved svejsning, med et første sæt holdebakker og et 15 andet sæt holdebakker, som sammen kan fastholde foringsrøret, og et tredje sæt holdebakker, i hvilket rørendefittingen ifølge opfindelsen kan opspændes, idet sidstnævntes første rørstuds vender mod foringsrøret, hvilke sæt holdebakker er parallelforskydelige på et stativ, og især det tredje sæt 20 holdebakker er så vidt forskydeligt, at der mellem det andet og tredje sæt holdebakker kan indføres afretningsværktøj og plastsvej seværktøj. Denne holdeindretning er ejendommelig ved, at det første og/eller andet sæt holdebakker - når bakkerne i det enkelte sæt er ført sammen - hver fastlægger et hul med en 25 form og størrelse svarende til den ydre kontur af tværsnittet af det foldede foringsrør. En sådan holdeindretning har det i praksis vist sig særlig hensigtsmæssigt at anvende ved montering af rørendefittingen ifølge opfindelsen.Furthermore, the invention relates to a holding device for use in mounting a pipe fitting according to the invention to a casing by welding, with a first set of holding trays and a second set of holding trays which together can hold the casing, and a third set of holding trays in which the pipe fitting according to the invention can are tightened, with the latter's first pipe butt facing the casing, which sets of holding trays are displaceable in parallel on a rack, and in particular the third set of 20 holding trays is sufficiently displaceable that alignment tools and plastic welding tools can be introduced between the second and third sets. This holding device is characterized in that the first and / or second set of holding trays - when the trays in each set are brought together - each define a hole of a shape and size corresponding to the outer contour of the cross-section of the folded casing. In practice, such a holding device has proved particularly suitable for use in mounting the pipe fitting according to the invention.
Endelig kan ifølge opfindelsen antallet af bakker i det enkel-30 te sæt holdebakker være to, hvorhos bakkerne i det andet sæt holdebakker kan have en så betydelig tykkelse, fortrinsvis cirka 9 - 30%, især 15 - 25%, af den største dimension af det af de to samvirkende bakker fastlagte hul, at disse bakker kan 4 DK 171517 B1 både fastholde foringsrørets ende og forme denne ende i forbindelse med svejsningen til rørendefittingens første rørstuds. Derved opnås, at bakkerne under svejsningen, dvs. medens plasten er relativt blød, kan få et særlig godt for-5 mende greb om den ene ende af foringsrøret og denne rørende-fittingens første rørstuds, idet foringsrøret og denne rørstuds ligger i forlængelse af hinanden.Finally, according to the invention, the number of trays in the single set of holding trays may be two, whereas the trays in the second set of holding trays may have such a substantial thickness, preferably about 9-30%, especially 15-25%, of the largest dimension of trays. the hole defined by the two cooperating trays that these trays can both hold the end of the casing and shape this end in connection with the welding to the first pipe fitting of the pipe fitting. Thereby, the trays are obtained during welding, ie. while the plastic is relatively soft, it can have a particularly good grip on one end of the casing and the first pipe socket of this pipe fitting, with the casing and this pipe socket extending in succession.
Opfindelsen forklares nedenfor under henvisning til tegningen, hvor 10 fig. 1 viser en udførelsesform for rørendefittingen ifølge opfindelsen, set forfra, fig. 2 samme set fra siden, fig. 3 samme set bagfra, fig. 4 en anden udførelsesform for rørendefittingen ifølge op-15 findelsen forsynet med trækhoved, fig. 5 et foringsrør lige inden rørendefittingen ifølge opfindelsen monteres, fig. 6 samme, idet rørendefittingen er blevet monteret, fig. 7 en holdeindretning ifølge opfindelsen til brug ved 20 montering af rørendefittingen på et foringsrør, og fig. 8 perspektivisk et sæt klembakker, hvor man kan se disses tykkelse.The invention is explained below with reference to the drawing, in which FIG. 1 is a front view of an embodiment of the pipe fitting according to the invention; FIG. 2 is a side view, FIG. 3 is a rear view, FIG. 4 shows another embodiment of the pipe fitting according to the invention provided with a pull head; FIG. 5 shows a casing just before the pipe fitting according to the invention is mounted; FIG. 6, the pipe fitting having been mounted; FIG. 7 shows a holding device according to the invention for use in mounting the pipe fitting on a casing; and FIG. 8 is a perspective view of a set of clamping boxes where you can see their thickness.
Den i fig. 1 og 2 viste rørendefitting til montering på et foldet foringsrør af plast er opbygget af en plastplade 4 med 25 et eller flere gennemgående huller, i det foreliggende tilfælde to huller 4a, 4b, se især fig. 2. Disse huller kan f.eks. tilvejebringes ved støbning af rørendefittingen. På den • DK 171517 Bl 5 ene side af pladen (i fig. 2 er det på højre side) er der tilvejebragt en udragende rørstuds 5, som står i hovedsagen vinkelret på pladen 4. Rørstudsen 5 har et tværsnit, hvis ydre kontur svarer til den ydre kontur af tværsnittet af et foldet 5 foringsrør, se henvisningstallet 12 i fig. 5. Rørstudsen 5 omslutter det område af pladen 4, hvori hullet eller hullerne 4a, 4b findes. Fra den anden side af pladen 4 udrager der en anden rørstuds 7 med i hovedsagen cirkulært tværsnit, hvilken rørstuds også omslutter det nævnte område af pladen, hvor 10 hullet eller hullerne 4a, 4b findes. I fig. 3 ses særlig tydeligt, hvorledes den anden rørstuds er cirkulær.The FIG. 1 and 2 for mounting on a folded plastic casing is constructed of a plastic plate 4 with one or more through holes, in the present case two holes 4a, 4b, see in particular fig. 2. These holes may e.g. provided by molding the pipe fitting. On the one side of the plate (in Fig. 2 it is on the right side) there is provided a protruding pipe nozzle 5, which is generally perpendicular to the plate 4. The pipe nozzle 5 has a cross-section whose outer contour corresponds to the outer contour of the cross-section of a folded 5 casing, see reference numeral 12 in FIG. 5. The pipe nozzle 5 encloses the area of the plate 4 in which the hole or holes 4a, 4b are located. From the other side of the plate 4, a second tube nozzle 7 of substantially circular cross-section extends, which tube nozzle also encloses the said area of the plate where the hole or holes 4a, 4b are located. In FIG. 3 can be seen particularly clearly in how the second pipe nozzle is circular.
Den første rørstuds 5 kan have en vægtykkelse i hovedsagen svarende til foringsrørets vægtykkelse. Til den anden rørstuds • 7 kan der f.eks. ved svejsning være monteret et trækhoved 10 15 med øje 13, se fig. 4. Som det ses, kan trækhovedet 10 have en i hovedsagen halvkalotformet del 15 og en i hovedsagen cylindrisk del 11. Delen 11 kan have mindst én lille ventilationsåbning 14, hvorigennem varm gas (f.eks. damp), kondensvand og trykluft kan passere på deres vej bort fra et 20 foldet foringsrør, når rørendefittingen i øvrigt er monteret herpå. Typisk kan der være tre ventilationsåbninger vejen rundt om delen 11.The first pipe nozzle 5 may have a wall thickness substantially equal to the wall thickness of the casing. For the other pipe nozzle • 7, e.g. a welding head 10 15 with an eye 13 is mounted on welding, see fig. 4. As can be seen, the draft head 10 may have a generally semi-cylindrical portion 15 and a substantially cylindrical portion 11. The portion 11 may have at least one small vent opening 14 through which hot gas (e.g. steam), condensation water and compressed air can pass. on their way away from a 20-fold casing, when the pipe fitting is otherwise mounted on it. Typically, there may be three vents all the way around part 11.
Rørendefittingen kan være udformet, så at den kan bruges til foringsrør med en diameter på 50 - 500 mm, fortrinsvis 100 -25 400 mm, især 150 - 300 mm.The pipe fitting may be designed so that it can be used for casings with a diameter of 50 - 500 mm, preferably 100 - 25 400 mm, especially 150 - 300 mm.
Som vist i fig. 1 kan den første rørstuds 5 have varierende vægtykkelse, idet vægtykkelsen et sted f.eks. kan være t1# medens den forneden i tværsnittet kan være t2, hvor t2 er betydeligt større end t1. Det bemærkes, at størrelsen og for-30 men af rørstudsens 5 hulareal eller -arealer 2a, 2b i det viste tilfælde nøjagtigt svarer til størrelsen og formen af hullet eller hullerne 4a, 4b i pladen 4. Dette er dog ikke absolut nødvendigt. Det nævnte hulareal 2a, 2b vil altid være større end eller lig med hularealet af hullerne 4a, 4b og DK 171517 B1 6 altid være placeret således, at hularealerne 4a, 4b ligger "inden for" hularealerne 2a, 2b.As shown in FIG. 1, the first pipe nozzle 5 may have varying wall thickness, the wall thickness being somewhere e.g. may be t1 # while at the bottom of the cross section may be t2 where t2 is significantly larger than t1. It should be noted that the size and shape of the hollow area or areas 2a, 2b of the pipe nozzle 5 exactly correspond to the size and shape of the hole or holes 4a, 4b in the plate 4. However, this is not absolutely necessary. Said cavity areas 2a, 2b will always be greater than or equal to the cavity of holes 4a, 4b and DK 171517 B1 6 always located such that cavities 4a, 4b are "within" cavities 2a, 2b.
Som det ses af fig. 1, kan den første rørstuds 5 i hovedsagen have form som et massivt C, hvor der i hvert af C'ets grene er 5 tildannet et gennemgående hul lc, der fortrinsvis er nyreformet. Denne udformning af den første rørstuds har vist sig særlig praktisk.As seen in FIG. 1, the first tube nozzle 5 can generally take the form of a solid C, in which in each of the branches of the C 5 a through hole 1c is formed, which is preferably kidney shaped. This design of the first pipe nozzle has proved particularly practical.
I fig. 5 ses et foringsrør 12 og en rørendefitting 1, umiddelbart før de skal samles. Rørendefittingen 1 er i dette tilfæl-10 de forsynet med en plade 4, som rager et betydeligt stykke radialt uden for den første rørstuds 5 (dette var ikke tilfældet i fig. 1) . I fig. 6 ses, hvorledes rørendefittingen ser ud, når den er monteret på den ene ende af det foldede foringsrør 12. Man ser tydeligt den anden rørstuds 5, som om-15 giver det område af pladen, hvor hullerne 4a, 4b findes. På den anden ende af foringsrøret 12 kan der være monteret (f.eks. svejset) en i og for sig kendt, men ikke vist, plade, hvorigennem damp og trykluft kan ledes ind i røret 12. Der er også den mulighed, at der på den nævnte anden ende af forings-20 røret (dvs. på rørets 12 venstre ende) kan være monteret (f.eks. svejset) en ikke vist rørendefitting ifølge opfindelsen, evt. uden de i fig. 4 viste dele 11 og 15, gennem hvilken rørendefitting damp og trykluft kan ledes til røret 12.In FIG. 5, a casing 12 and a pipe fitting 1 are seen immediately prior to assembly. In this case, the pipe fitting 1 is provided with a plate 4 which projects a considerable distance radially outside the first pipe nozzle 5 (this was not the case in Figure 1). In FIG. 6 shows how the pipe fitting looks when it is mounted on one end of the folded casing 12. The other pipe nozzle 5 is clearly visible, which indicates the area of the plate where the holes 4a, 4b are located. At the other end of the casing 12, there may be mounted (e.g. welded) a plate known per se, but not shown, through which steam and compressed air can be fed into the pipe 12. There is also the possibility that may be mounted (e.g. welded) on said second end of the casing (i.e. on the left end of the pipe 12) a pipe fitting not shown in the present invention, possibly. without those of FIG. 4 and 11, through which pipe fitting steam and compressed air can be fed to the pipe 12.
I fig. 7 ses, hvorledes en holdeindretning til brug ved på-25 svejsning af en rørendefitting på et foringsrør kan se ud. Den består af et første sæt holdebakker 21 og et andet sæt holdebakker 22, som sammen kan gribe om og fastholde det foringsrør, som skal forsynes med en rørendefitting. Som det ses, er der også tilvejebragt et tredje sæt holdebakker 23, i hvilken 30 rørendefittingen kan opspændes. Når rørendefittingen er op-spændt, vil dennes første rørstuds vende hen mod foringsrøret.In FIG. 7 shows how a holding device for use in welding a pipe fitting on a casing may look. It consists of a first set of holding trays 21 and a second set of holding trays 22 which together can grip and hold the casing to be provided with a pipe fitting. As can be seen, there is also provided a third set of holding trays 23 in which the pipe fitting can be clamped. When the pipe fitting is tightened, its first pipe socket will face the casing.
De tre sæt holdebakker 21, 22, 23 er parallelforskydelige på et stativ 20. Især det tredje sæt holdebakker kan parallelforskydes, nemlig så stort et stykke x, at der i rummet mellem DK 171517 B1 7 det andet sæt holdebakker 22 og tredje sæt holdebakker 23 kan indføres værktøj til afretning af de endeflader, som skal svejses sammen, indføres det fornødne plastsvej seværktøj, såsom varmespejl m.m.The three sets of holding trays 21, 22, 23 are parallel slidable on a rack 20. In particular, the third set of holding trays can be parallel displaced, namely, such a large x that in the space between DK 171517 B1 7 the second set of holding trays 22 and third set of holding trays 23 can be inserted tool for aligning the end surfaces to be welded together, the necessary plastic welding seeding tool, such as heat mirror etc. can be introduced
5 Som vist i fig. 8 fastlægger bakkerne i det enkelte sæt holdebakker (dvs. det første og/eller det andet sæt holdebakker) -når bakkerne er ført sammen - et hul med en form og størrelse svarende til den ydre kontur 16 af tværsnittet af det foldede foringsrør 12. Hullet har fortrinsvis et i hovedsagen C-formet 10 tværsnit.5 As shown in FIG. 8 defines the trays in each set of holding trays (i.e., the first and / or second set of holding trays) - when the trays are brought together - a hole of a shape and size corresponding to the outer contour 16 of the cross-section of the folded casing 12. The hole preferably has a generally C-shaped cross-section.
Som vist i fig. 8 kan antallet af bakker i det enkelte holde-bakkesæt være to og have en tykkelse Θ, som fortrinsvis svarer til ca. 9 - 30%, især 15 - 25%, af den største dimension af det af de to samvirkende bakker fastlagte hul. Θ er så stor, 15 at bakkerne kan både fastholde foringsrørets 12 ende og forme denne ende i forbindelse med svejsningen til rørendefittingens første rørstuds.As shown in FIG. 8, the number of trays in each holding tray set may be two and have a thickness Θ which preferably corresponds to approx. 9 - 30%, especially 15 - 25%, of the largest dimension of the hole defined by the two cooperating trays. Θ is so large that the trays can both hold the end of the casing 12 and shape this end in connection with the welding to the first pipe end of the pipe fitting.
Foringsrøret og rørendefittingen kan hensigtsmæssigt fremstilles i polyethylen.Conveniently, the casing and pipe fitting can be made of polyethylene.
Claims (9)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK57594A DK171517B1 (en) | 1994-05-20 | 1994-05-20 | Pipe fitting, casing with such pipe fitting and holding device for use in mounting the pipe fitting to the casing |
AU25600/95A AU2560095A (en) | 1994-05-20 | 1995-05-19 | A pipe end fitting, a pipe-shaped liner provided with such a pipe end fitting and a fixing jaws device for mounting the pipe end fitting on said liner |
PCT/DK1995/000199 WO1995032381A1 (en) | 1994-05-20 | 1995-05-19 | A pipe end fitting, a pipe-shaped liner provided with such a pipe end fitting and a fixing jaws device for mounting the pipe end fitting on said liner |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK57594 | 1994-05-20 | ||
DK57594A DK171517B1 (en) | 1994-05-20 | 1994-05-20 | Pipe fitting, casing with such pipe fitting and holding device for use in mounting the pipe fitting to the casing |
Publications (2)
Publication Number | Publication Date |
---|---|
DK57594A DK57594A (en) | 1995-11-21 |
DK171517B1 true DK171517B1 (en) | 1996-12-16 |
Family
ID=8095106
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK57594A DK171517B1 (en) | 1994-05-20 | 1994-05-20 | Pipe fitting, casing with such pipe fitting and holding device for use in mounting the pipe fitting to the casing |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2560095A (en) |
DK (1) | DK171517B1 (en) |
WO (1) | WO1995032381A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5919327A (en) * | 1995-06-30 | 1999-07-06 | Insituform (Netherlands) B.V. | Method and apparatus for sealed end for cured in place pipe liners |
GB9601922D0 (en) * | 1996-01-31 | 1996-04-03 | Lippiatt Raymond | Methods of and arrangements for lining pipes |
NL1039503C2 (en) | 2012-03-29 | 2013-12-30 | Wavin Bv | Device and method for installing a compact pipe within a pipeline. |
JP6308524B2 (en) * | 2014-03-30 | 2018-04-11 | 芦森工業株式会社 | Tube terminal closure device |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2728056A1 (en) * | 1977-06-22 | 1979-01-11 | Arikan Geb Kartan Sevinc | Protective lining for inside cement pipes - where tube is fitted inside while folded and then sealed, released and inflated |
SE469573B (en) * | 1988-04-13 | 1993-07-26 | Nu Pipe Inc | REPLACEMENT BEAMS AND KITS AND EQUIPMENT MAKE MANUFACTURING AND INSTALLING PIPES WITH MEMORY BEHAVIOR FOR A REDUCED FORM |
-
1994
- 1994-05-20 DK DK57594A patent/DK171517B1/en not_active IP Right Cessation
-
1995
- 1995-05-19 WO PCT/DK1995/000199 patent/WO1995032381A1/en active Application Filing
- 1995-05-19 AU AU25600/95A patent/AU2560095A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
AU2560095A (en) | 1995-12-18 |
DK57594A (en) | 1995-11-21 |
WO1995032381A1 (en) | 1995-11-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B1 | Patent granted (law 1993) | ||
PBP | Patent lapsed |