WO2014202148A1 - Extrémité de soudage pour tuyaux comportant un dispositif étanche à l'eau - Google Patents

Extrémité de soudage pour tuyaux comportant un dispositif étanche à l'eau Download PDF

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Publication number
WO2014202148A1
WO2014202148A1 PCT/EP2013/062953 EP2013062953W WO2014202148A1 WO 2014202148 A1 WO2014202148 A1 WO 2014202148A1 EP 2013062953 W EP2013062953 W EP 2013062953W WO 2014202148 A1 WO2014202148 A1 WO 2014202148A1
Authority
WO
WIPO (PCT)
Prior art keywords
hose
welding end
watertight
spigot
hoses
Prior art date
Application number
PCT/EP2013/062953
Other languages
English (en)
Inventor
Mario Orfei
Original Assignee
Matec Group S.R.L.
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 Matec Group S.R.L. filed Critical Matec Group S.R.L.
Priority to PCT/EP2013/062953 priority Critical patent/WO2014202148A1/fr
Publication of WO2014202148A1 publication Critical patent/WO2014202148A1/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
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/18—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses characterised by the use of additional sealing means
    • 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
    • F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
    • F16L25/0036—Joints for corrugated pipes
    • 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
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/34—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with bonding obtained by vulcanisation, gluing, melting, or the like

Definitions

  • the present invention essentially concerns a watertight device, installed in welding ends for hoses, and more exactly in welding ends for flexible hoses, said device including one or more radial grooves, achieved on the outer surface of the part that is inserted in hoses, called spigot; the grooves are housings where respective O- rings are installed.
  • a first solution includes a two-components resin, usually an epoxide resin, that in a first step is mixed, and then it is spilled in big quantity in the inner part between welding end and outer pressure ring.
  • This resin using an activator takes approximately 6-8 hours in order to harden, so to achieve a unique body including hose, welding end and outer ring.
  • the resin represents a dangerous chemical product to be handled by assigned operators
  • a second solution includes a lip gasket, placed in the welding end, between the hose and the outer pressure ring.
  • This system has the advantage to be fast and comfortable, but often it results to be not perfectly effective, because during the tests sometimes the welding end connected to the hose is not watertight, and there is leakage of liquids.
  • the main objective of the present invention is to disclose a device achieving welding ends for hoses, and more exactly welding ends for flexible hoses, characterized by a high level of watertight property.
  • Another objective is that the insertion procedure of the welding ends inside the hoses results to be particularly fast, easy and safe for the assigned operators.
  • the watertight device can be adapted, by using proper materials according to different applications of hoses, and therefore can achieve the watertight property, even in cases of being in touch with particularly aggressive chemical products.
  • a welding end for hoses comprising a watertight device, said device being composed of:
  • a basic structure comprising one or more grooves, placed on the radial outline of the part of welding end, called spigot, that is inserted in a hose;
  • one or more O-rings made of an elastic material, that is natural or synthetic, which are respectively inserted and housed in said one or more grooves, maintaining therefore a prominent upper side in respect to the radial outline of said spigot, so that when the above said spigot is inserted in said hose, said one or more O-rings can change, under pressure, the outline of their prominent upper side and can grip homogeneously to the inner wall of the same hose, therefore no cracks and/or gaps are left behind, by which a liquid could pass through, leading to a watertight property of the whole welding end that is placed in connection to said hose.
  • figure 1 is a front perspective view of a welding end, according to the present invention, having two O-rings;
  • figure 2 is a front perspective view of the same welding end of figure 1 , where two radial grooves are visible, in said grooves the respective O-rings are inserted;
  • figure 3 is a top view of the same welding end of figure 1 ;
  • figure 4 is a front view of the same welding end of figure 1 ;
  • figure 5 is a lateral view of the same welding end of figure 1 ;
  • figure 6 is a front perspective view of the same welding end of figure 1 , in a first step of insertion and connection to a composite hose having a double metallic spiral, inside and outside;
  • figure 7 is a front perspective view of the same welding end of figure 1 , in a second step of completed insertion and connection to a composite hose having a double metallic spiral, inside and outside;
  • figure 8 is a front perspective view of a welding end, according to an embodiment with outer pressure ring, in a first step of insertion and connection to a composite hose having a double metallic spiral, inside and outside;
  • figure 9 is a front perspective view of a welding end, according to an embodiment with outer pressure ring, like in figure 8, in a second step of completed insertion and connection to a composite hose having a double metallic spiral, inside and outside;
  • figure 10 is a lateral view of the same welding end of figure 8, in a first step of insertion and connection to a composite hose having a double metallic spiral, inside and outside;
  • figure 1 1 is a lateral view of the same welding end of figure 9, in a second step of completed insertion and connection to a composite hose having a double metallic spiral, inside and outside.
  • FIG. 1 shows a welding end 100 for hoses, comprising a watertight device.
  • This welding end 100 has a basic structure, typically with a cylindrical shape, with a front end 108, properly tapered and threaded in order to be screwed in a flexible hose, and a rear end 103 also properly tapered and threaded in order to be connected to another structure, in example a rigid structure, or to another hose.
  • the flexible hose where the front end 108 of the welding end 100 is inserted is a composite hose, reinforced with a double metallic spiral, inside and outside, like in example a Compotec® hose.
  • Figure 2 shows how the smooth part 105 of the welding end, that is inserted in the hose, comprises two grooves 102a, 102b, on the radial outline.
  • These grooves 102a, 102b are housings where two respective O-rings 101 a, 101 b are inserted and, as shown in figure 1 , the O-rings 101 a, 101 b maintain a prominent upper side in respect to the radial outline of spigot 105.
  • FIGs 3, 4 and 5 show the exact geometrical shape of the welding end 100, according to respective top, front and lateral views.
  • the insertion of spigot 105 in the hose 120 is provided, as illustrated in figures 6 and 7, by pushing the welding end 100 along the longitudinal arrow, and rotating the same welding end 100 along the transversal arrow.
  • the two O-rings 101 a, 101 b change under pressure the outline of their prominent upper side so that they grip homogeneously to the inner wall of the same hose 120, therefore no cracks and/or gaps are left behind, by which a liquid could pass through, leading to a watertight property of the whole welding end 100 that is placed in connection to the hose 120.
  • An alternative embodiment of the present invention as illustrated in figures 8 and 9, further comprises an outer pressure ring 1 10, surrounding the outer part of said spigot 105, and defining an inner space between ring 1 10 and spigot 105, where the end 123 of a hose 120 is inserted, said end 123 having been previously made free, by a cut, of an ending part of inner 122 and outer spiral 121 .
  • the insertion of spigot 105 in the hose 120 is provided by pushing the welding end 100 along the longitudinal arrow, and rotating the same welding end 100 along the transversal arrow.
  • the part between welding end 100 and hose 120 results to be watertight: inside, the O-rings 101 a, 101 b, gripping homogeneously to the inner wall of the same hose 120 do not leave any space or crack where a liquid could pass through; outside, the ring 1 10 bonding homogeneously to the outer wall of the same hose 120, and keeping the outer spiral 121 under pressure, does not leave any space or crack where a liquid could pass through.
  • An alternative embodiment of the present invention comprises, instead of said O-rings 101 a, 101 b, a unique O-ring, having a rectangular cross-section with a larger bottom part, inserted in a unique radial groove, again placed on the radial outline of the part of welding end 100, called spigot 105.
  • the working principle is similar to the one described previously, that is: when the above said spigot 105 is inserted in said hose 120, said O-ring with rectangular cross- section changes, under pressure, the outline of its prominent upper side. In such a way it grips homogeneously to the inner wall of the same hose 120, therefore no cracks and/or gaps are left behind, by which a liquid could pass through, leading to a watertight property of the whole welding end 100 that is placed in connection to said hose 120.
  • Another further embodiment of the present invention includes, in addition to the components previously described, a lip gasket placed between said pressure ring 1 10 and the outer surface of hose 120, so that a synergic effect is produced with the above said elements, and the watertight property of the welding end 100 is even more effective.
  • the present invention achieves all the proposed objectives.
  • it discloses a device achieving welding ends for hoses, and more exactly welding ends for flexible hoses, characterized by a high level of watertight property.
  • the insertion procedure of the welding ends inside the hoses results to be particularly fast, easy and safe for the assigned operators.
  • the watertight device can be adapted, by using proper materials in respect to different applications of hoses, and therefore can achieve the watertight property, even in cases of being in touch with particularly aggressive chemical products.

Abstract

L'invention concerne une extrémité de soudage (100) pour tuyaux, comportant un dispositif étanche à l'eau, ledit dispositif étant composé de : - une structure de base comportant une ou plusieurs rainures (102a), (102b), placée sur le contour radial de la partie d'extrémité de soudage (100), appelée bout mâle, qui est insérée dans un tuyau (120); - un ou plusieurs joints toriques (101 a), (101 b), réalisés en un matériau élastique, qui est naturel ou synthétique, qui sont respectivement insérés et logés dans lesdites une ou plusieurs rainures (102a), (102b), pour maintenir en conséquence un côté supérieur proéminent par rapport au contour radial dudit bout mâle (105), de sorte que, quand ledit bout mâle ci-dessus (105) est inséré dans ledit tuyau (120), lesdits un ou plusieurs joints toriques (101 a), (101 b), peuvent changer, sous pression, le contour de leur côté supérieur proéminent et peuvent adhérer de manière homogène sur la paroi intérieure du même tuyau (120), pour par conséquent ne laisser aucune fissure et/ou aucun espace derrière, par où un liquide pourrait passer, ceci donnant lieu à une propriété d'étanchéité de l'intégralité de l'extrémité de soudage (100) qui est placée en une connexion sur ledit tuyau (120).
PCT/EP2013/062953 2013-06-20 2013-06-20 Extrémité de soudage pour tuyaux comportant un dispositif étanche à l'eau WO2014202148A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2013/062953 WO2014202148A1 (fr) 2013-06-20 2013-06-20 Extrémité de soudage pour tuyaux comportant un dispositif étanche à l'eau

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2013/062953 WO2014202148A1 (fr) 2013-06-20 2013-06-20 Extrémité de soudage pour tuyaux comportant un dispositif étanche à l'eau

Publications (1)

Publication Number Publication Date
WO2014202148A1 true WO2014202148A1 (fr) 2014-12-24

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Country Status (1)

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WO (1) WO2014202148A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB741643A (en) * 1953-10-29 1955-12-07 Compoflex Co Ltd Improvements in couplings for flexible hose
US4564222A (en) * 1984-08-27 1986-01-14 Hydrasearch Co., Inc. Separable coupling for thin-walled flexible hose
DE19650601A1 (de) * 1996-12-06 1998-06-10 Raymond A & Cie Anschlußkörper für druckmittelleitende Steckverbindungen
DE20301139U1 (de) * 2003-01-24 2004-06-03 Höppner, Frank Verbindung zwischen einer Rohrleitung aus Kunststoff und einem Anschlußstutzen eines Geräts o.dgl.
DE102007021846A1 (de) * 2007-05-05 2008-11-13 Visteon Global Technologies Inc., Van Buren Verbindung für Leitungen und Verfahren zu deren Herstellung
EP2607767A1 (fr) * 2011-12-23 2013-06-26 Matec Group S.r.l. Extrémité de soudure pour tuyaux comportant un dispositif d'étanchéité

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB741643A (en) * 1953-10-29 1955-12-07 Compoflex Co Ltd Improvements in couplings for flexible hose
US4564222A (en) * 1984-08-27 1986-01-14 Hydrasearch Co., Inc. Separable coupling for thin-walled flexible hose
DE19650601A1 (de) * 1996-12-06 1998-06-10 Raymond A & Cie Anschlußkörper für druckmittelleitende Steckverbindungen
DE20301139U1 (de) * 2003-01-24 2004-06-03 Höppner, Frank Verbindung zwischen einer Rohrleitung aus Kunststoff und einem Anschlußstutzen eines Geräts o.dgl.
DE102007021846A1 (de) * 2007-05-05 2008-11-13 Visteon Global Technologies Inc., Van Buren Verbindung für Leitungen und Verfahren zu deren Herstellung
EP2607767A1 (fr) * 2011-12-23 2013-06-26 Matec Group S.r.l. Extrémité de soudure pour tuyaux comportant un dispositif d'étanchéité

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