FR2550311A1 - Flexible connection for linking pipelines - Google Patents

Flexible connection for linking pipelines Download PDF

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Publication number
FR2550311A1
FR2550311A1 FR8312652A FR8312652A FR2550311A1 FR 2550311 A1 FR2550311 A1 FR 2550311A1 FR 8312652 A FR8312652 A FR 8312652A FR 8312652 A FR8312652 A FR 8312652A FR 2550311 A1 FR2550311 A1 FR 2550311A1
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FR
France
Prior art keywords
braid
pipe
corrugated
connection
tube
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR8312652A
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French (fr)
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FR2550311B1 (en
Inventor
Alain Senechal
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tubest SA
Original Assignee
Tubest SA
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Filing date
Publication date
Application filed by Tubest SA filed Critical Tubest SA
Priority to FR8312652A priority Critical patent/FR2550311B1/en
Publication of FR2550311A1 publication Critical patent/FR2550311A1/en
Application granted granted Critical
Publication of FR2550311B1 publication Critical patent/FR2550311B1/en
Expired legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L31/00Arrangements for connecting hoses to one another or to flexible sleeves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/26Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses specially adapted for hoses of metal

Abstract

Flexible connection for linking pipelines of the type of those constituted by a corrugated metal tube comprising an external sleeve made of a metal braid, the braid 2 being fixed in one corrugation of the corrugated pipe 1 by means of a metal snap ring 6 which is open or closed and which is clamped on itself in this corrugation by crimping and possibly welding and which is covered by a metal ring 7 which is externally concentric and crimped around the assembly: corrugated pipe 1, braid 2 and snap ring 6.

Description

RACCORD FLEXIBLE POUR LIAISON DE CANALISATIONS
L'invention a pour objet un raccord flexible pour liaison de canalisations.
FLEXIBLE CONNECTION FOR PIPE CONNECTION
The invention relates to a flexible connector for connecting pipes.

Pour relier des canalisations dans lesquelles circulent des fluides liquides ou gazeux, il est connu d'utiliser des raccords flexibles constitués par un tuyau métallique onduleux comportant une gaine extérieure en tresse métallique. To connect pipes in which liquid or gaseous fluids circulate, it is known to use flexible fittings constituted by a corrugated metal pipe comprising an outer sheath in metallic braid.

L'invention a pour objet un raccord de ce type dans lequel la tresse est fixée dans une onde du tuyau onduleux, au moyen d'un jonc métallique ouvert ou fermé qui est resserré sur lui-même dans cette onde par sertissage et éventuellement soudage et qui est recouvert par une bague métallique extérieurement concentrique sertie autour de l'ensemble : tuyau onduleux, tresse et jonc. The subject of the invention is a connector of this type in which the braid is fixed in a wave of the corrugated pipe, by means of an open or closed metal rod which is tightened on itself in this wave by crimping and possibly welding and which is covered by an externally concentric metal ring crimped around the assembly: undulating pipe, braid and rod.

Les moyens de fixation de la tresse sur le tuyau sont ainsi indépendants de ceux qui sont utilisés aux deux extrémités du tuyau onduleux pour réaliser sa liaison avec les deux canalisations ou les deux embouts à relier par le raccord flexible. The means for fixing the braid to the pipe are thus independent of those used at the two ends of the corrugated pipe to make its connection with the two pipes or the two end pieces to be connected by the flexible connector.

Cette indépendance entre les moyens de fixation de la tresse sur le tuyau onduleux et les moyens de raccordement permet de réaliser un raccord int l'une ou l'autre des extrémités ou dont les deux extrémités sont coudées par rapport à l'axe général du tube. Il suffit pour cela d'appliquer à l'extrémité considérée ou aux deux extrémités du tuyau onduleux, dans des zones situées au-delà de la gaine extérieure, le procédé faisant l'objet de la demande de brevet NO 83 12583 de la Demanderesse, c'est-à-dire de déformer mécaniquement cette extrémité ou ces deux extrémités en leur donnant la direction recherchée par rapport à l'axe général du tube, puis de créer dans ce tube une pression intérieure suffisante pour qu'il se déforme dans ses zones non maintenues, cette déformation étant alors permanente.  This independence between the means of fixing the braid to the corrugated pipe and the connection means makes it possible to produce an int connection at either end or the two ends of which are bent with respect to the general axis of the tube. . For this, it suffices to apply to the end considered or to the two ends of the corrugated pipe, in areas located beyond the outer sheath, the process which is the subject of patent application NO 83 12583 of the Applicant, that is to say, to mechanically deform this end or these two ends by giving them the desired direction relative to the general axis of the tube, then to create in this tube sufficient internal pressure so that it deforms in its areas not maintained, this deformation then being permanent.

En combinant l'agencement du raccord et la mise en oeuvre de ce procédé de mise en forme, il devient possible, grâce à l'invention, de réaliser des raccords dont les extrémités sont coudées l'une par rapport à l'autre, ce qui ouvre des débouchés nouveaux aux raccords flexibles constitués en tuyau métallique onduleux. Parmi ces débouchés peuvent être cités notamment : les raccords pour machines à laver le linge, pour machines à laver la vaisselle... By combining the arrangement of the connector and the implementation of this shaping process, it becomes possible, thanks to the invention, to produce connectors whose ends are bent relative to each other, this which opens up new outlets for flexible fittings made of corrugated metal pipes. Among these outlets can be mentioned in particular: fittings for washing machines, for dishwashers ...

L'invention sera bien comprise d'ailleurs à l'aide de la description qui suit, en référence au dessin schématique annexé représentant, à titre d'exemple non limitatif, une forme d'exécution de ce raccord flexible
Figure 1 en est une vue en élévation avec coupe longitudinale partielle, dans le cas d'un raccord rectiligne
Figure 2 en est une vue en coupe transversale suivant 2/2 de figure 1 ; et
Figure 3 est une vue partielle en élévation d'un raccord dont l'une des extrémités est coudée.
The invention will be understood moreover with the aid of the description which follows, with reference to the appended diagrammatic drawing representing, by way of nonlimiting example, an embodiment of this flexible connector
Figure 1 is an elevational view with partial longitudinal section, in the case of a straight connection
Figure 2 is a cross-sectional view along 2/2 of Figure 1; and
Figure 3 is a partial elevational view of a connector, one end of which is bent.

Le raccord représenté à la figure 1 est constitué essentiellement par un tube métallique onduleux (1) et par une gaine extérieure (2) réalisée en tresse métallique. la longueur de cette gaine (2) est sensiblement inférieure à celle du tuyau onduleux (1) afin que les extrémités de ce tuyau soient situées hors de la gaine et que, grâce aux dernières ondes du tuyau, il soit possible de relier le raccord avec les deux canalisations et embouts à raccorder. The connector shown in Figure 1 consists essentially of a corrugated metal tube (1) and an outer sheath (2) made of metal braid. the length of this sheath (2) is significantly less than that of the corrugated pipe (1) so that the ends of this pipe are located outside the sheath and that, thanks to the last waves of the pipe, it is possible to connect the fitting with the two pipes and fittings to be connected.

Les moyens qui sont prévus pour réaliser la liaison entre le tuyau onduleux et les canalisations ou embouts à raccorder peuvent être quelconques et ce n'est qu'à titre d'exemple que la figure 1 représente l'un de ces moyens. Selon ce moyen, l'écrou (3) est monté libre en rotation par l'extrémité de sa jupe (4) entre deux ondes du tuyau, et un joint d'étanchéité (5) est prévu entre les ondes extrêmes qui sont avantageuse ment aplaties et un épaulement prévu dans l'écrou (3). The means which are provided for making the connection between the corrugated pipe and the pipes or nozzles to be connected can be any and it is only by way of example that FIG. 1 represents one of these means. According to this means, the nut (3) is mounted to rotate freely by the end of its skirt (4) between two waves of the pipe, and a seal (5) is provided between the extreme waves which are advantageously flattened and a shoulder provided in the nut (3).

L'essentiel est de constater que les moyens de fixation du raccord sont indépendants et sont écartés des moyens utilisés pour réaliser la liaison entre la gaine tressée (2) et le tuyau onduleux (1). The main thing is to note that the means of fixing the connector are independent and are separated from the means used to make the connection between the braided sheath (2) and the corrugated pipe (1).

Cette liaison est en effet obtenue par sertissage d'un jonc (6) autour de la zone extrême correspondante de la tresse (2) et ce dans une onde du tuyau (1). This connection is in fact obtained by crimping a rod (6) around the corresponding end zone of the braid (2) and this in a wave of the pipe (1).

Ce jonc (6) est avantageusement constitué par un anneau ouvert ou fermé. Par lui-même, ce jonc serti assure déjà une certaine liaison entre la gaine tressée (2) et le tuyau onduleux (1). Cette liaison est toutefois renforcée par un deuxième élément, à savoir une bague métallique (7) qui est concentrique à l'ensemble formé par le tuyau onduleux (1), la gaine tressée (2) et le jonc (6). Cette bague métallique (7) est sertie autour de l'ensemble précité, ce qui permet d'assurer une liaison parfaite entre le tuyau onduleux (1) et la gaine tressée (2).This rod (6) is advantageously constituted by an open or closed ring. By itself, this crimped rod already provides a certain connection between the braided sheath (2) and the corrugated pipe (1). This connection is however reinforced by a second element, namely a metal ring (7) which is concentric with the assembly formed by the corrugated pipe (1), the braided sheath (2) and the rod (6). This metal ring (7) is crimped around the aforementioned assembly, which ensures a perfect connection between the corrugated pipe (1) and the braided sheath (2).

Comme il a été dit plus haut, l'indépendance des moyens de fixation de la gaine (2) sur le tuyau (1) et des moyens de raccordement du tuyau (1) permet de placer ces moyens à une certaine distance l'un de l'autre, ce dont il résulte la possibilité de faire changer l'orientation de l'extrémité du raccord, c'est-àdire de l'écrou (3) par rapport à la direction générale du raccord, c'est-à-dire par rapport à l'axe longitudinal du tube (1) et de la gaine (2). As has been said above, the independence of the means of fixing the sheath (2) on the pipe (1) and the connection means of the pipe (1) makes it possible to place these means at a certain distance one of the other, which results in the possibility of changing the orientation of the end of the fitting, that is to say of the nut (3) relative to the general direction of the fitting, that is to say say with respect to the longitudinal axis of the tube (1) and the sheath (2).

Le tube annelé (1) présentant, en raison de sa nature, une grande aptitude à être plié, permet ce changement d'orientation, au cours duquel se produit une déformation passagère des ondes du tube ; et si après avoir ainsi changé l'orientation de l'extrémité de raccordement (3) par rapport à la direction générale du raccord (2), il est pris soin de soumettre le tube à une surpression intérieure, il en résulte que la déformation précédemment donnée au tube devient définitive, la surpression ne produisant ses effets que dans la zone du tube (1) qui n'est pas revêtue de la gaine tressée (2), c'est-à-dire dans la zone comprise entre l'extrémité de raccordement et la bague (7).En conséquence, même après qu'ait cessé la surpression à son intérieur, le tube conserve la forme qui lui a été donnée ; et c1 est ainsi qu'il est possible d'obtenir, comme le montre la figure 3, une extrémité de raccordement disposée orthogonalement par rapport à a direction générale du raccord. The corrugated tube (1) having, due to its nature, a great ability to be bent, allows this change of orientation, during which occurs a temporary deformation of the waves of the tube; and if after having thus changed the orientation of the connection end (3) relative to the general direction of the connection (2), care is taken to subject the tube to an internal overpressure, it follows that the deformation previously given to the tube becomes final, the overpressure producing its effects only in the zone of the tube (1) which is not coated with the braided sheath (2), that is to say in the zone between the end connection and the ring (7). Consequently, even after the overpressure inside has ceased, the tube retains the shape it was given; and c1 it is thus possible to obtain, as shown in FIG. 3, a connection end arranged orthogonally to the general direction of the connection.

Cette possibilité élargit considérablement les applications de ce tube de raccord ; et c'est ainsi notamment qu'il devient possible d'utiliser ces raccords sur des machines ménagères, telles que les machines à laver le linge, les machines à laver la vaisselle... This possibility considerably widens the applications of this connecting tube; and this is how it becomes possible in particular to use these fittings on household machines, such as washing machines, dishwashers ...

Comme il va de soi, l'invention ne se limite pas à la seule forme d'exécution de ce raccord flexible qui a été ci-dessus indiquée à titre d'exemple , elle en embrasse au contraire toutes les variantes de réalisation, quels que soient notamment les moyens prévus pour réaliser la liaison des deux extrémités du raccord avec les canalisations ou avec les embouts à raccorder.  As it goes without saying, the invention is not limited to the only embodiment of this flexible connector which has been indicated above by way of example, on the contrary it embraces all the variant embodiments thereof, whatever are in particular the means provided for making the connection of the two ends of the connector with the pipes or with the ends to be connected.

Claims (3)

REVENDICATIONS 1. Raccord flexible pour liaison de canalisations du type de ceux constitués par un tube métallique onduleux comportant une gaine extérieure en tresse métallique, caractérisé en ce que la tresse (2) est fixée dans une onde du tuyau onduleux (1) au moyen d'un jonc métallique (6) ouvert ou fermé qui est resserré sur lui-même dans cette onde par sertissage et éventuellement soudage et qui est recouvert par une bague métallique (7) extérieurement concentrique et sertie autour de l'ensemble : tuyau onduleux (1), tresse (2) et jonc (6). 1. Flexible connector for connecting pipes of the type of those constituted by a corrugated metal tube comprising an outer sheath of metallic braid, characterized in that the braid (2) is fixed in a wave of the corrugated pipe (1) by means of an open or closed metal rod (6) which is tightened on itself in this wave by crimping and possibly welding and which is covered by a metal ring (7) externally concentric and crimped around the assembly: corrugated pipe (1) , braid (2) and rod (6). 2.- Raccord flexible pour liaison de canalisations selon la revendication 1, caractérisé en ce que les moyens de fixation (6, 7) de la tresse (2) sur le tuyau onduleux (1) sont indépendants et sont écartés de ceux (3) utilisés pour la liaison de chaque extrémité du raccord avec une canalisa tion ou un embout. 2.- flexible connection for pipe connection according to claim 1, characterized in that the fixing means (6, 7) of the braid (2) on the corrugated pipe (1) are independent and are separated from those (3) used for the connection of each end of the fitting with a pipe or a fitting. 3.- Raccord flexible selon les revendications 1 et 2, caractérisé en ce que, dans sa zone comprise entre l'écrou de raccordement (3) et les moyens de fixation (6, 7) de la tresse (2), le tube onduleux (1) présente une déformation définitive qui, résultant d'une surpression intérieure pas sagère dans le tube, modifie la direction de l'écrou de raccordement (3) par rapport à la direction générale du raccord (1, 2).  3.- flexible connector according to claims 1 and 2, characterized in that, in its area between the connecting nut (3) and the fixing means (6, 7) of the braid (2), the corrugated tube (1) has a final deformation which, resulting from an internal overpressure not shelf in the tube, changes the direction of the connecting nut (3) relative to the general direction of the fitting (1, 2).
FR8312652A 1983-08-01 1983-08-01 FLEXIBLE CONNECTION FOR PIPE CONNECTION Expired FR2550311B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8312652A FR2550311B1 (en) 1983-08-01 1983-08-01 FLEXIBLE CONNECTION FOR PIPE CONNECTION

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Application Number Priority Date Filing Date Title
FR8312652A FR2550311B1 (en) 1983-08-01 1983-08-01 FLEXIBLE CONNECTION FOR PIPE CONNECTION

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FR2550311B1 FR2550311B1 (en) 1985-11-08

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000031455A1 (en) * 1998-11-20 2000-06-02 Hummel Engineering Products Gmbh Flexible hose line with arrester security device
EP0939265A3 (en) * 1998-02-26 2001-04-25 40 Properties Management, Ltd. (A Limited Liability Company Of Ohio) Metal hose fitting and method of making

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2132326A (en) * 1936-08-31 1938-10-04 Titeflex Metal Hose Co Tube coupling
GB591635A (en) * 1943-12-03 1947-08-25 Solar Aircraft Co A joint between a flexible metal conduit and a metal nipple
FR1094387A (en) * 1953-11-16 1955-05-20 Conducto Watertight fitting for flexible metal pipes and ducts
EP0002959A2 (en) * 1977-12-30 1979-07-11 Manfred Arno Alfred Lupke Pipe joints
BE886771A (en) * 1980-12-19 1981-04-16 Turnauer Vilmos CONNECTION FOR FLEXIBLE METAL PIPES AND METHOD FOR ITS INSTALLATION.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2132326A (en) * 1936-08-31 1938-10-04 Titeflex Metal Hose Co Tube coupling
GB591635A (en) * 1943-12-03 1947-08-25 Solar Aircraft Co A joint between a flexible metal conduit and a metal nipple
FR1094387A (en) * 1953-11-16 1955-05-20 Conducto Watertight fitting for flexible metal pipes and ducts
EP0002959A2 (en) * 1977-12-30 1979-07-11 Manfred Arno Alfred Lupke Pipe joints
BE886771A (en) * 1980-12-19 1981-04-16 Turnauer Vilmos CONNECTION FOR FLEXIBLE METAL PIPES AND METHOD FOR ITS INSTALLATION.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0939265A3 (en) * 1998-02-26 2001-04-25 40 Properties Management, Ltd. (A Limited Liability Company Of Ohio) Metal hose fitting and method of making
WO2000031455A1 (en) * 1998-11-20 2000-06-02 Hummel Engineering Products Gmbh Flexible hose line with arrester security device

Also Published As

Publication number Publication date
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