DK177166B1 - Reces in wrap to elastomer sealing ring - Google Patents
Reces in wrap to elastomer sealing ring Download PDFInfo
- Publication number
- DK177166B1 DK177166B1 DKPA201000745A DKPA201000745A DK177166B1 DK 177166 B1 DK177166 B1 DK 177166B1 DK PA201000745 A DKPA201000745 A DK PA201000745A DK PA201000745 A DKPA201000745 A DK PA201000745A DK 177166 B1 DK177166 B1 DK 177166B1
- Authority
- DK
- Denmark
- Prior art keywords
- recess
- sealing ring
- elastomeric sealing
- ring
- threaded
- Prior art date
Links
Classifications
-
- 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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/08—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts with metal rings which bite into the wall of the pipe
- F16L19/083—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts with metal rings which bite into the wall of the pipe the longitudinal cross-section of the ring not being modified during clamping
- F16L19/086—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts with metal rings which bite into the wall of the pipe the longitudinal cross-section of the ring not being modified during clamping with additional sealing means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
Kobling for tilslutning af glatte rør til gevindrør eller gevindnippel fortrinsvis i vandinstallationer hvor koblingen består af omløber, elastomer tætningsring, støtteskive og holdering, og for at undgå risiko for lækage er omløberen indvendig forsynet med en reces som strækker sig omtrent ud til omløbergevindets maksimale diameter og udført med en skrå væg som afslutter recessen i omløberen og samme reces positioneres hvor den elastomere tætningsring skal placeres inde i omløberen og recessen og den elastomere tætningsrings bredde er tilpasset recessens bredde i omløberen.Coupling for connecting smooth pipes to threaded pipes or threaded nipples, preferably in water installations where the coupling consists of union, elastomeric sealing ring, support washer and retaining ring, and to avoid risk of leakage, the union is provided with a recess which extends approximately to the maximum diameter of the union thread and made with a sloping wall which ends the recess in the nut and the same recess is positioned where the elastomeric sealing ring is to be placed inside the nut and the recess and the width of the elastomeric sealing ring are adapted to the width of the recess in the nut.
Description
i DK 177166 B1 Rørkoblingin DK 177166 B1 Pipe coupling
Opfindelsen angår en rørkobling for tilslutning af glatte rør til gevindrør eller gevindnippel i for eksempel vandinstallationer.BACKGROUND OF THE INVENTION This invention relates to a pipe coupling for connecting smooth pipes to threaded or threaded nipples in, for example, water installations.
Koblingen består af omløber, elastomer tætningsring, støtteskive og 5 holdeelement fremover kaldet holdering.The coupling consists of a wrap, elastomeric sealing ring, support disc and 5 holding element in the future called holding.
Koblinger for tilslutning af glatte rør til gevindrør eller gevindnipler findes i mange forskellige konstruktioner og typer.Couplings for connecting smooth pipes to threaded pipes or threaded nipples are available in many different designs and types.
Problemstillingen i denne sammenhæng er risikoen for lækage og de konsekvenser, der er forbundet med det. Formålet med denne opfindelse er at 10 eliminere risikoen for lækage optimalt. Erfaringer for hvordan lækage typisk kan opstå, er udgangspunktet for udviklingen af indeværende løsningsmodel.The problem in this context is the risk of leakage and the consequences associated with it. The object of this invention is to optimally eliminate the risk of leakage. Experience of how leakage can typically occur is the starting point for the development of this solution.
Det vil fremgå hvordan man ved implementering af den nye opfindelse teknisk kan løse problemet.It will be apparent how the implementation of the new invention can technically solve the problem.
Ved en af typerne anvendes en elastomer som tætningselement mellem 15 gevindrøret og det glatte rør, og denne type har den ulempe, at den elastomere tætningsring som er placeret inde i omløberen strækker sig helt ud til gevindet i omløberen. Dette er nødvendigt for at sikre tilstrækkeligt anlægsflade mellem gevindrør og elastomer tætningsring i de tilfælde, hvor gevindrøret eller gevindniplen er forsynet med en rejfning, som de oftest er.In one of the types, an elastomer is used as a sealing element between the threaded tube and the smooth tube, and this type has the disadvantage that the elastomeric sealing ring located inside the sheath extends all the way to the thread in the sheath. This is necessary to ensure adequate contact surface between threaded pipe and elastomeric sealing ring in cases where the threaded pipe or threaded nipple is provided with a tear that they most often are.
20 Det, at den elastomere tætningsring strækker sig helt ud til gevindet, bevirker, at når den elastomere tætningsring komprimeres under sammenspænding, risikerer denne også nemt at blive komprimeret ud i gevindet med friktion mellem omløber og gevindrør til følge.The fact that the elastomeric sealing ring extends all the way to the thread causes that when the elastomeric sealing ring is compressed under tension, it also risks being easily compressed into the thread with friction between the perimeter and the threaded tube.
Personen, som spænder koblingen, ved ikke, om det tilførte moment er blevet 25 anvendt til overvindelse af friktion eller til sikring mod udtrækning af det glatte rør. Om holderingen har deformeret det glatte rør og derved holder det i korrekt position eller ej?The person clutching the coupling does not know if the applied torque has been used to overcome friction or to secure against the smooth pipe. Whether the retaining ring has deformed the smooth tube and thus holds it in the correct position or not?
Ved komprimering er hensigten at den elastomere tætningsring skal forårsage pres på holderingen, og dette pres har som konsekvens at holderingen på 30 sikker vis fæstner det glatte rør - eller udtrykt på en anden måde: Deformerer 2 DK 177166 B1 det glatte rør. Holderingens design er netop udført således, at jo større pres på denne jo kraftigere spændes holderingen mod det glatte rør for bedre sikring og fastholdelse af dette.When compressed, the elastomeric sealing ring is intended to cause pressure on the retaining ring, and this pressure has the consequence that the retaining ring securely attaches the smooth tube - or in another way: Deforms the smooth tube. The design of the holder is precisely designed so that the greater pressure on the holder the more tightly the holding ring is tightened against the smooth tube for better securing and retention thereof.
Konsekvensen ved friktion imellem omløber og gevindrør - hvor den 5 elastomere tætningsring bliver komprimeret ud i gevindet under sammenspænding, er at holderingen ikke får deformeret det glatte rør og dermed ikke sikrer det korrekt.The consequence of friction between the circumferential and threaded tubes - where the 5 elastomeric sealing ring is compressed into the thread during tightening, is that the retaining ring does not deform the smooth tube and thus does not secure it properly.
Hermed risikerer det glatte rør meget nemt at blive skubbet ud af koblingen på grund af vandtrykket og de trykstød som forekommer i vandinstallationer, når 10 haner åbnes og lukkes.This makes the smooth pipe very easy to be ejected from the coupling due to the water pressure and the pressure shocks that occur in water installations when 10 taps are opened and closed.
På den måde opstår lækager og scenarier omkring store vandskader er nemt at forestille sig.In this way, leaks and scenarios around major water damage are easy to imagine.
TEKNIKKENS STANDPUNKT - PRIOR ART 15 Løsningsmodeller til denne konkrete problemstilling er kun perifert repræsenteret igennem patentlitteraturen.PRIOR ART - PRIOR ART 15 Solution models for this specific problem are only peripherally represented throughout the patent literature.
Lækageproblematikken er dog et kendt fænomen i patentlitteraturen, men omkring den elastomere tætningsring og en tilhørende reces i omløberen er 20 der ikke fundet noget modhold, som denne opfindelse risikerer at krænke.However, the leakage problem is a known phenomenon in the patent literature, but around the elastomeric sealing ring and associated recess in the wrap there is no restraint that this invention risks violating.
Nogle eksempler på opfindelser hvor tætningsproblematikken i koblinger er det centrale emne.Some examples of inventions where the sealing problem in couplings is the central issue.
US 2008/0061550 beskriver en (se figur 1-6) en kobling (20) for tilslutning af glatte rør (32, 36, 38) til gevindrør eller gevindnippel (30) hvor koblingen (20) 25 består af en omløber (22), en elastomer tætningsring (26), en støtteskive (24) og en holdering (23) hvor omløberen (22) indvendig er forsynet med en reces (40) og samme reces (40) positioneres, hvor den elastomere tætningsring (26), støtteskive (24) og holdering (23), og den elastomere tætningsrings huldiameter i det væsentlige er mindre end det glatte rørs udvendige 30 diameter.US 2008/0061550 discloses (see FIGS. 1-6) a coupling (20) for connecting smooth tubes (32, 36, 38) to threaded or threaded nipple (30), wherein the coupling (20) 25 consists of a by-pass (22) , an elastomeric sealing ring (26), a support disc (24) and a retaining ring (23) wherein the inner cover (22) is provided with a recess (40) and the same recess (40) is positioned where the elastomeric sealing ring (26), support disc (24) and retaining (23), and the hollow diameter of the elastomeric seal ring is substantially smaller than the outer diameter of the smooth tube.
Indeværende opfindelse afviger fra US 2008/0061550 i krav 1 ved at recessen strækker sig omtrent ud til omløbergevindets maksimale diameter og er udført 3 DK 177166 B1 med en skrå væg/rejfning som afslutter recessen i omløberen og ved at den elastomere tætningsrings bredde er tilpasset recessens bredde.The present invention differs from US 2008/0061550 in claim 1 in that the recess extends approximately to the maximum diameter of the winding thread and is formed with an inclined wall / ridge which terminates the recess in the wrap and in that the width of the elastomeric sealing ring is adapted to the recess. width.
CA 1101458 er et eksempel på et patent, som strejfer indeværende problemstilling. Den elastomere tætningsring (pakning) er anbragt i en reces, 5 men recessen er ikke anbragt i omløberen men i holderingen og samtidig angår monteringen det indvendige i et rør. Samtidigt relaterer opfindelsen sig specielt imod koblinger for meget store rør.CA 1101458 is an example of a patent which addresses this issue. The elastomeric sealing ring (gasket) is placed in a recess, but the recess is not placed in the sheath but in the retaining ring and at the same time the mounting relates to the interior of a pipe. At the same time, the invention relates particularly to couplings for very large pipes.
US 4602792 omhandler mere specifikt den elastomere rings udformning og har en helt anden indgangsvinkel til problemløsningen.More specifically, US 4602792 addresses the design of the elastomeric ring and has a completely different approach to problem solving.
10 US 5758910 her er tætnings ringen af metal og koblingen er målrettet imod gas sammenkoblinger. Igen en helt anden løsningsmodel.US 5758910 here is the sealing ring of metal and the coupling is targeted to gas couplings. Again, a completely different option.
US 4426095 denne opfindelse har fokus på selve materialet af eksempelvis den elastomere ring og udformningen af enkeltdelene og omhandler ikke en reces i omløberen.US 4426095 this invention focuses on the actual material of, for example, the elastomeric ring and the design of the individual parts and does not deal with a recess in the wrap.
15 DE MIDLER DER ANVENDES FOR AT OPFINDELSENS SPECIELLE VIRKNING KANThe agents used to enable the specific effect of the invention
OPNÅSACHIEVE
Opfindelsen angår en kobling hvor omløberen er forsynet med en reces et passende stykke inde i omløberen og som strækker sig omtrent ud til omløbergevindets maksimale diameter. Den elastomere tætningsrings bredde 20 passer omtrent til recessen i omløberen.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a coupling in which the bypass is provided with a recess a suitable portion within the bypass and extending approximately to the maximum diameter of the bypass thread. The width of the elastomeric sealing ring 20 corresponds approximately to the recess in the wrap.
Mere konkret:More specifically:
Kobling for tilslutning af glatte rør til gevindrør eller gevindnippel fortrinsvis i vandinstallationer hvor koblingen består af omløber, elastomer tætningsring, støtteskive og holdering, karakteriseret ved at omløberen indvendig er 25 forsynet med en reces som strækker sig omtrent ud til omløbergevindets maksimale diameter og udført med en skrå væg/rejfning som afslutter recessen i omløberen 4 DK 177166 B1 og samme reces positioneret, hvor den elastomere tætningsring skal placeres inde i omløberen i den position, som gives af hhv. støtteskive og holderings udstrækning i forhold til omløberens indvendige bund. og den elastomere tætningsrings huldiameter i det væsentlige er mindre end 5 det glatte rørs udvendige diameter og ligeledes er den elastomere tætningsrings bredde tilpasset recessens bredde i omløberenCoupling for connecting smooth pipes to threaded pipes or threaded nipples, preferably in water installations, where the coupling consists of a by-pass, elastomeric sealing ring, support disc and retainer, characterized in that the inner by-pass is provided with a recess which extends approximately to the maximum diameter of the by-pass thread and is provided with a inclined wall / rake which terminates the recess in the circumference 4 DK 177166 B1 and the same recess positioned where the elastomeric sealing ring must be placed inside the circumference in the position given by respectively. support plate and the extent of the retaining ring relative to the inner bottom of the circumference. and the hole diameter of the elastomeric seal ring is substantially less than the outside diameter of the smooth tube and likewise the width of the elastomeric seal ring is adapted to the width of the recess
Elastomer tætningsring, støtteskive og holdering, disse 3 nævnte elementer ligger i nævnte rækkefølge oven og under hinanden - i bunden af omløberen 10 ligger holderingen. I det felt hvor den elastomere tætningsring fysisk ligger ovenover hhv. holdering og støtteskive er selvfølgelig dér, hvor recessen er placeret i omløberenElastomeric sealing ring, support disc and retaining ring, these three elements are in the above-mentioned order, one another - at the bottom of the wrap 10 is the retaining ring. In the field where the elastomeric sealing ring is physically located above or above the Of course, the retaining bracket and support disc are where the recess is located in the perimeter
DET SÆRLIGE DER OPNÅS I FORHOLD TIL TEKNIKKENS STANDPUNKTTHE SPECIAL THAT IS ACHIEVED IN ACCORDANCE WITH THE PRIOR ART
Når den elastomere tætningsring komprimeres under sammenspænding, vil 15 denne ikke have mulighed for at komme i klemme mellem gevindet i omløberen og gevindrøret da den elastomere tætningsring under kompressionen skubbes væk fra omløberens gevindudløb.When the elastomeric sealing ring is compressed under tension, the latter will not be able to get caught between the thread of the sheath and the threaded tube as the elastomeric sealing ring during compression is pushed away from the sheath thread outlet.
Der er yderligere den fordel, at den elastomere tætningsring under kompressionen vil blive tvunget imod det glatte rør på grund af den skrå væg, 20 som afslutter recessen i omløberen. Dette forhold er med til at optimere tæthedspotentialet.There is a further advantage that the elastomeric sealing ring during compression will be forced against the smooth tube due to the inclined wall 20 terminating the recess in the loop. This ratio helps to optimize the density potential.
En anden fordel er, at den elastomere tætningsring er så godt lejret i omløberen, at huldiameteren i den elastomere tætningsring kan være mindre end den udvendige diameter af det glatte rør, hvorved der opnås større 25 sikkerhed for tæthed da den elastomere tætningsring allerede under montagen vil blive deformeret i radial retning uden bekymring for, at den elastomere tætningsring skubbes ud af omløberen, når koblingen skubbes på det glatte rør.Another advantage is that the elastomeric sealing ring is so well positioned in the sheath that the hole diameter of the elastomeric sealing ring may be smaller than the outside diameter of the smooth tube, thereby providing greater security of tightness since the elastomeric sealing ring will already during assembly. be deformed in the radial direction without worrying that the elastomeric sealing ring is pushed out of the bypass as the coupling is pushed on the smooth tube.
5 DK 177166 B15 DK 177166 B1
En yderligere fordel er at anlægsfladen imod den elastomere tætningsring øges da en væsentlig større del af gevindrøret/niplens "ende" lægger an imod den elastomere tætningsring.A further advantage is that the abutment surface against the elastomeric sealing ring is increased as a substantially larger portion of the "end" of the threaded tube / nipple abuts the elastomeric sealing ring.
Der er herved anvist en konstruktion, som sikrer at det til omløberen tilførte 5 moment anvendes udelukkende til kompression af den elastomere tætningsring samt til holderingens deformation af det glatte rør. Dette øger sikkerheden for korrekt montage og derved færre vandskader.A structure is hereby provided which ensures that the torque applied to the sheath is used exclusively for compression of the elastomeric sealing ring and for the deformation of the smooth tube by the retaining ring. This increases the safety of proper installation and thus reduces water damage.
FigurfortegnelseList of Figures
Fig. 1 Omløber iflg. opfindelsen forsynet med reces uden kompressionFIG. 1 Circular according to. the invention provided with recess without compression
Fig. 2 med kompressionFIG. 2 with compression
Fig. 3 Traditionel type uden kompressionFIG. 3 Traditional type without compression
Fig. 4 Traditionel type hvor udførelsesform medfører friktionFIG. 4 Traditional type in which embodiment causes friction
Fig. 5 Traditionel type hvor udførelsesform medfører friktion og minus deformation af det glatte rør 10FIG. 5 Traditional type wherein embodiment causes friction and minus deformation of the smooth tube 10
Nummerhenvisninger 1. omløber 2. elastomer tætningsring 3. støtteskive 15 4. holdering 5. gevindrør eller gevindnippel 6. glat rør 7. reces 8. rejfning/skråvæg 20Numbering notes 1. circular 2. elastomeric sealing ring 3. supporting disc 15 4. retaining 5. threaded or threaded nipple 6. smooth tube 7. recess 8. rake / inclined wall 20
UdførelseseksemplerEmbodiments
Fig. 1 og fig. 2 illustrerer begge opfindelsen og opfindelsens funktionalitet, mens fig. 3-5 illustrerer den kendte teknik samt ulemperne ved samme.FIG. 1 and FIG. 2 illustrates both the invention and the functionality of the invention, while FIG. 3-5 illustrates the prior art and the disadvantages of the same.
6 DK 177166 B16 DK 177166 B1
Fig. 1 illustrerer omløber(l) med reces (7), hvor elastomer tætningsring (2) ligger i recessen (7) og den elastomere tætningsring (2) er ikke under kompression.FIG. 1 illustrates the recess (1) with recess (7), wherein the elastomeric sealing ring (2) lies in the recess (7) and the elastomeric sealing ring (2) is not under compression.
Fig. 2. illustrerer samme som i fig. 1 men nu med den forskel at den elastomere 5 tætningsring (2) er under kompression hvilket forplanter sig ned til holderingen (4). Denne (4) ses gå i spænd med det glatte rør (6) - i fagsprog udtrykkes det således at holderingen(4) deformerer det glatte rør (6).FIG. 2. illustrates the same as in FIG. 1 but now with the difference that the elastomeric sealing ring (2) is under compression which propagates down to the retaining ring (4). This (4) is seen to be in tension with the smooth tube (6) - in a professional language it is expressed so that the retaining ring (4) deforms the smooth tube (6).
Fig. 3 illustrerer kendt teknik hvor at den elastomere tætningsring, som er placeret inde i omløberen strækker sig helt ud til gevindet i omløberen.FIG. 3 illustrates prior art in which the elastomeric sealing ring located inside the sheath extends all the way to the thread in the sheath.
10 Og hvor den elastomere tætningsring ikke er under kompression.10 And where the elastomeric sealing ring is not under compression.
Fig. 4.viser den elastomere tætningsring komprimeret ud i gevindet Fig. 5 viser den elastomere tætningsring komprimeret ud i gevindet med friktion mellem omløber og gevindrør til følge, og hvor det fremgår, at holderingen ikke har deformeret det glatte rør og dermed ikke sikret det 15 korrekt. Herved risikerer det glatte rør at blive skubbet ud af koblingen på grund afvandtrykket af de trykstød som forekommer i vandinstallationer, når haner åbnes og lukkes.FIG. 4 shows the elastomeric sealing ring compressed into the thread FIG. 5 shows the elastomeric sealing ring compressed into the thread with friction between the perimeter and the threaded tube, and where it appears that the retaining ring has not deformed the smooth tube and thus has not secured it properly. This results in the slippery pipe being ejected from the coupling due to the water pressure of the pressure shocks that occur in water installations when taps are opened and closed.
20 25 3020 25 30
Claims (1)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DKPA201000745A DK177166B1 (en) | 2010-08-25 | 2010-08-25 | Reces in wrap to elastomer sealing ring |
| EP11819448.9A EP2609354A1 (en) | 2010-08-25 | 2011-06-17 | Tube connection |
| PCT/DK2011/000064 WO2012025114A1 (en) | 2010-08-25 | 2011-06-17 | Tube connection |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK201000745 | 2010-08-25 | ||
| DKPA201000745A DK177166B1 (en) | 2010-08-25 | 2010-08-25 | Reces in wrap to elastomer sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DK177166B1 true DK177166B1 (en) | 2012-04-10 |
Family
ID=45722913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DKPA201000745A DK177166B1 (en) | 2010-08-25 | 2010-08-25 | Reces in wrap to elastomer sealing ring |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2609354A1 (en) |
| DK (1) | DK177166B1 (en) |
| WO (1) | WO2012025114A1 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4777669A (en) * | 1987-05-13 | 1988-10-18 | Sloan Valve Company | Flush valve/flush tube connection |
| DE10110356C1 (en) * | 2001-03-03 | 2002-11-07 | Hummel Anton Verwaltung | Compression fitting with support sleeve |
| US7549679B2 (en) * | 2006-09-08 | 2009-06-23 | Brass-Craft Manufacturing Company | Pipe fitting with compression of seal structure |
-
2010
- 2010-08-25 DK DKPA201000745A patent/DK177166B1/en not_active IP Right Cessation
-
2011
- 2011-06-17 WO PCT/DK2011/000064 patent/WO2012025114A1/en active Application Filing
- 2011-06-17 EP EP11819448.9A patent/EP2609354A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012025114A1 (en) | 2012-03-01 |
| EP2609354A1 (en) | 2013-07-03 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |
Effective date: 20130831 |