WO2014102045A1 - Dispositif de couplage pour s'accoupler à un tube - Google Patents

Dispositif de couplage pour s'accoupler à un tube Download PDF

Info

Publication number
WO2014102045A1
WO2014102045A1 PCT/EP2013/075611 EP2013075611W WO2014102045A1 WO 2014102045 A1 WO2014102045 A1 WO 2014102045A1 EP 2013075611 W EP2013075611 W EP 2013075611W WO 2014102045 A1 WO2014102045 A1 WO 2014102045A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
pressure elements
coupling device
tapering support
sealing ring
Prior art date
Application number
PCT/EP2013/075611
Other languages
English (en)
Inventor
dhr. Jurrien VAN DER VELDE
Original Assignee
Georg Fischer Waga N.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Georg Fischer Waga N.V. filed Critical Georg Fischer Waga N.V.
Priority to EP13802580.4A priority Critical patent/EP2935963A1/fr
Publication of WO2014102045A1 publication Critical patent/WO2014102045A1/fr

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
    • F16L21/00—Joints with sleeve or socket
    • F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
    • F16L21/04—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings in which sealing rings are compressed by axially-movable members
    • 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
    • F16L21/00—Joints with sleeve or socket
    • F16L21/08—Joints with sleeve or socket with additional locking means

Definitions

  • the invention relates to a coupling device for coupling with a tube, comprising a sleeve part with an insert end for the tube and pressure elements for exerting a clamping force on the tube, wherein the said pressure elements have radially converging surfaces that radially converge towards each other in a direction away from the longitudinal axis of the device, and wherein the sleeve part has tapering support surfaces that cooperate which said radially converging surfaces of the pressure elements for pressing the pressure elements towards the tube, and wherein a sealing ring is applied to provide a seal around the tube, of which sealing ring at least a first portion is placed between the tube and the pressure elements and at least a second portion is placed between the pressure elements and at least one selected tapering support surface of the said tapering support surfaces of the sleeve part .
  • Such a coupling device is known from EP-A-0 794 378 in the name of the applicant.
  • the pressure elements as applied in this known coupling device are embodied as substantially wedge-shaped elements in order to provide the radially converging surfaces that radially converge towards each other in a direction away from the longitudinal axis of the device.
  • the said pressure elements slidably abut to each other to form a substantially closed ring around the tube in order to effectively press the sealing ring against the tube.
  • the construction with these slidably abutting pressure elements enables the coupling device to accommodate and automatically adjust to different tube diameters without modification of the coupling device and its constituting elements.
  • a problem with the known coupling device is that it is sensitive to the dimensions of the sealing ring, usually a rubber ring.
  • the sealing ring When the sealing ring is too thick its deformation may become problematic when applying the coupling device to smaller diameter tubes. Eventually this may result in leakage due to the large deformations of the thick sealing ring that are required when applying the coupling device on smaller diameter tubes. The large deformations may lead to rupture of the sealing ring.
  • the sealing ring is too thin the effectivity of the sealing may become less than optimal when the tube has an irregular outer surface. In relative terms the required deformation of a thin sealing ring to avoid leakage is then larger than in case the sealing ring can be designed with a thicker dimension.
  • Still another problem is that particularly with relatively thick sealing rings the pressure of the medium in the tube may cause the sealing ring to be pressed out from between the pressure elements and the cooperating tapering support surfaces for these pressure elements.
  • the selected tapering support surface of the tapering support surfaces of the sleeve part is provided with irregularities so as to counter movement of the second portion of the sealing ring relative to this selected tapering support surface.
  • a generally applicable form of the said irregularities on the selected tapering support surface is to provide them as protruding ridges extending from this selected tapering support surface.
  • the said irregularities on the selected tapering support surface are provided as concentric ridges relative to the longitudinal axis of the device.
  • Such concentric ridges are easy to manufacture. This ease of manufacturing is particularly promoted when the concentric ridges are uninterrupted. From the perspective of effective sealing it may however also be beneficial that the concentric ridges are interrupted .
  • Another suitable form of the irregularities is if they exhibit the shape of a Belgian waffle.
  • This Belgian waffle shape is also easy to manufacture and may be particularly effective with a sealing ring of relatively soft rubber.
  • -figure 1 generally depicts the construction of the coupling device of the invention
  • FIG. 4-7 provides a frontal view of respective exemplary embodiments of the slanted or tapered sup- port surfaces construed in accordance with the invention.
  • This coupling device 1 of the invention is shown in a longitudinal sectional view.
  • This coupling device 1 for tube 10 comprises a sleeve part 2 with an insert end 3 for the tube 10 and pressure elements 4 for exerting a clamping force on the tube 10.
  • the pressure elements 4 have radially converging sur- faces 5, 6 that radially converge towards each other in a direction away from the longitudinal axis 11 of the device.
  • the sleeve part 2 on the other hand has tapering support surfaces 7, 8 that cooperate which said radially converging surfaces 5, 6 of the pressure elements 4 for pressing the pressure ele- ments 4 towards the tube 10.
  • a sealing ring 9 is applied to provide a seal around the tube 10, of which sealing ring 9 at least a first portion 9' is placed between the tube 10 and the pressure elements 4 and at least a second portion 9' ' is placed between the pressure elements 4 and at least one se- iected tapering support surface 8 of the said tapering support surfaces 7, 8 of the sleeve part 1.
  • the said selected tapering or slanted support surface 8 of the sleeve part 1 is provided with irregularities 12 so as to counter movement of the second portion 9' ' of the sealing ring 9 relative to this selected tapering support surface 8.
  • the figures 4-7 shows several possibilities of implementing the irregularities 12, each case showing that the irregularities 12 on the slanted or tapering support surface 8 are provided as protruding ridges extending from the selected tapering support surface 8.
  • Figures 4 and 7 provide a frontal view showing that the said irregularities 12 on the selected tapering support surface 8 are provided as concentric ridges relative to the longitudinal axis 11 of the device.
  • the concentric ridges 12 are uninterrupted.
  • the concentric ridges 12 are interrupted.
  • Figure 6 shows the option that the irregularities 12 exhibit the shape of a Belgian waffle.
  • Figure 5 still shows another possible embodiment.
  • the examples shown in the figures 4-7 all relate to irregularities that are shaped symmetrically. It is however also feasible to shape the irregularities asymmetricall .

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gasket Seals (AREA)

Abstract

La présente invention concerne un dispositif (1) de couplage destiné à s'accoupler à un tube (10), qui comprend une partie manchon (2) avec une extrémité d'insert pour le tube et des éléments (4) de pression afin d'exercer une force de serrage sur le tube. Les éléments de pression possèdent des surfaces (5, 6) radialement convergentes qui convergent radialement l'une vers l'autre dans une direction qui s'éloigne de l'axe longitudinal du dispositif. La partie manchon possède des surfaces (7, 8) de soutien coniques qui coopèrent avec les surfaces radialement convergentes des éléments de pression, afin de presser les éléments de pression vers le tube. Une bague d'étanchéité (9) est appliquée pour fournir un joint autour du tube, au moins une première partie (9') de la bague d'étanchéité étant placée entre le tube et les éléments de pression et au moins une seconde partie (9'') étant placée entre les éléments (4) de pression et au moins une surface (8) de soutien conique sélectionnée parmi les surfaces de soutien coniques de la partie manchon, laquelle surface (8) est pourvue d'irrégularités (12) de manière à contrer le mouvement de la seconde partie de la bague d'étanchéité par rapport à cette surface de soutien conique sélectionnée.
PCT/EP2013/075611 2012-12-24 2013-12-05 Dispositif de couplage pour s'accoupler à un tube WO2014102045A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13802580.4A EP2935963A1 (fr) 2012-12-24 2013-12-05 Dispositif de couplage pour s'accoupler à un tube

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2010057A NL2010057C2 (en) 2012-12-24 2012-12-24 A coupling device for coupling with a tube.
NL2010057 2012-12-24

Publications (1)

Publication Number Publication Date
WO2014102045A1 true WO2014102045A1 (fr) 2014-07-03

Family

ID=47748732

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/075611 WO2014102045A1 (fr) 2012-12-24 2013-12-05 Dispositif de couplage pour s'accoupler à un tube

Country Status (3)

Country Link
EP (1) EP2935963A1 (fr)
NL (1) NL2010057C2 (fr)
WO (1) WO2014102045A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016058791A1 (fr) * 2014-10-15 2016-04-21 Vag-Armaturen Gmbh Dispositif d'assemblage de tuyaux

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1041958B1 (en) 2016-06-29 2018-01-05 Wavin Bv Press fitting device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH408565A (de) * 1963-12-11 1966-02-28 Von Roll Ag Muffenrohrverbindung
EP0794378A2 (fr) 1996-03-04 1997-09-10 Georg Fischer WAGA N.V. Accouplement de tuyaux
GB2363437A (en) * 2000-06-13 2001-12-19 Glynwed Pipe Systems Ltd Pipe coupling device
GB2460912A (en) * 2008-06-19 2009-12-23 Crane Ltd An annular gasket
GB2474899A (en) * 2009-10-30 2011-05-04 Crane Ltd T A Viking Johnson Improved pipe coupling

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH408565A (de) * 1963-12-11 1966-02-28 Von Roll Ag Muffenrohrverbindung
EP0794378A2 (fr) 1996-03-04 1997-09-10 Georg Fischer WAGA N.V. Accouplement de tuyaux
GB2363437A (en) * 2000-06-13 2001-12-19 Glynwed Pipe Systems Ltd Pipe coupling device
GB2460912A (en) * 2008-06-19 2009-12-23 Crane Ltd An annular gasket
GB2474899A (en) * 2009-10-30 2011-05-04 Crane Ltd T A Viking Johnson Improved pipe coupling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016058791A1 (fr) * 2014-10-15 2016-04-21 Vag-Armaturen Gmbh Dispositif d'assemblage de tuyaux

Also Published As

Publication number Publication date
NL2010057C2 (en) 2014-06-25
EP2935963A1 (fr) 2015-10-28

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