FR2733028A1 - Flexible pipe coupling safety cover - Google Patents
Flexible pipe coupling safety cover Download PDFInfo
- Publication number
- FR2733028A1 FR2733028A1 FR9504515A FR9504515A FR2733028A1 FR 2733028 A1 FR2733028 A1 FR 2733028A1 FR 9504515 A FR9504515 A FR 9504515A FR 9504515 A FR9504515 A FR 9504515A FR 2733028 A1 FR2733028 A1 FR 2733028A1
- Authority
- FR
- France
- Prior art keywords
- sleeve
- pipe coupling
- safety cover
- flexible pipe
- nuts
- 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
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
- F16L35/00—Special arrangements used in connection with end fittings of hoses, e.g. safety or protecting devices
-
- 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
- F16L19/005—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 comprising locking means for the threaded member
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
Description
DISPOSITIF DE SÉCURITÉ POUR TUYAUX FLEXIBLES
La présente invention a pour objet un dispositif de sécurité destiné en particulier, mais non exclusivement, aux tuyaux flexibles en acier inoxydable destinés à l'acheminement du gaz dans les foyers domestiques.SAFETY DEVICE FOR FLEXIBLE PIPES
The subject of the present invention is a safety device intended in particular, but not exclusively, for flexible stainless steel pipes intended for the transportation of gas in domestic households.
I1 existe maintenant des tuyaux flexibles tels que ceux qui sont fabriqués sous la marque "GAZINOX" (marque déposée) ou flexibles ou embout vissé qui, contrairement aux tuyaux en caoutchouc raccordés par un emboîtement sur tétine, se posent une fois pour toute sans qu'il soit nécessaire de les changer périodiquement. I1 now exist flexible pipes such as those which are manufactured under the mark "GAZINOX" (registered trademark) or flexible or screwed end which, contrary to the rubber pipes connected by an interlocking on nipple, arise once and for all without that it is necessary to change them periodically.
Ces tuyaux flexibles inaltérables se composent d'un corps creux longiligne dont la paroi est ondulée, en acier inoxydable. Les ondulations de la paroi en acier permettant la déformation nécessaire du conduit lorsque les deux extrémité à raccorder ne se trouvent pas dans le même plan ou dans la même direction. Ce corps longiligne est recouvert par une tresse métallique de protection également souple. La tresse métallique est elle-même revêtue d'une gaine plastique souple permettant un entretien aisé. Aux deux extrémités de la gaine sont prévues deux bagues serties solidarisant les trois composants du flexible et les embouts de raccordement. En saillie sur lesdites bagues sont prévus deux embouts reliés au corps intérieur muni de joints d'étanchéité et sur lesquels sont montés coulissants des écrous à filetage femelle.These unalterable flexible pipes consist of a slender hollow body with a corrugated wall, made of stainless steel. The corrugations of the steel wall allowing the necessary deformation of the conduit when the two ends to be connected are not in the same plane or in the same direction. This slender body is covered by a protective metallic braid that is also flexible. The metal braid is itself coated with a flexible plastic sheath allowing easy maintenance. At the two ends of the sheath are provided two crimped rings securing the three components of the hose and the connection end pieces. Projecting from said rings are provided two end pieces connected to the inner body provided with seals and on which nuts with female thread are slidably mounted.
Lors du montage d'un flexible sur une pièce de raccordement d'un organe tel qu'un compteur, un robinet, ou un appareil utilisateur, l'extrémité de l'embout pénètre dans une
cuvette formant siège de joint, la cuvette étant entourée par un filetage mâle sur lequel vient se visser l'écrou correspondant. Le vissage de l'écrou écrase le joint d'étanchéité dans la cuvette de sorte que la liaison est étanche et ne nécessite pas d'entretien.When mounting a hose on a connection piece of a member such as a meter, a tap, or a user device, the end of the end piece enters a
cup forming seal seat, the cup being surrounded by a male thread onto which the corresponding nut is screwed. The screwing of the nut crushes the gasket in the bowl so that the connection is tight and does not require maintenance.
Une fois qu'un tel flexible est posé, il n'a plus à être démonté. Mais les écrous restent accessibles et les flexibles peuvent ainsi être démontés notamment lors de déménagements, ou être desserrés par inadvertance ou malveillance.Once such a hose is installed, it no longer has to be dismantled. But the nuts remain accessible and the hoses can thus be disassembled in particular during moves, or be loosened inadvertently or maliciously.
La présente invention a pour objet de pallier cet inconvénient et d'empêcher tout démontage du flexible par des personnes non qualifiées. Elle est basée sur l'idée que les écrous ne doivent pas être accessibles au public.The object of the present invention is to overcome this drawback and to prevent any disassembly of the hose by unqualified persons. It is based on the idea that the nuts should not be accessible to the public.
Selon l'invention, le dispositif de sécurité pour tuyaux flexibles, notamment pour tuyaux flexibles de gaz en acier inoxydable raccordés à une canalisation et/ou un appareil utilisateur est caractérisé en ce qu'il est constitué par un manchon de forme général cylindrique dont le diamètre interne est sensiblement égal à l'enveloppe de l'écrou, ledit manchon étant bloqué sur le tuyau entre l'écrou et 1 ' organe raccordé.According to the invention, the safety device for flexible pipes, in particular for flexible stainless steel gas pipes connected to a pipe and / or a user device, is characterized in that it consists of a generally cylindrical sleeve, the internal diameter is substantially equal to the shell of the nut, said sleeve being blocked on the pipe between the nut and one connected member.
Par organe on entendra soit un compteur, soit un robinet d'arrêt, soit encore l'appareil utilisateur.By organ is meant either a counter, a stop valve, or the user device.
Ainsi, le manchon ne peut être démonté que par un personnel qualifié muni d'un outillage particulier. Selon une autre caractéristique de l'invention, le manchon est bloqué par une vis sans tête. Cette vis sans tête est de préférence, une vis spéciale noyée dans le manchon dont l'extrémité est amenée en contact avec l'organe à raccorder. Thus, the sleeve can only be dismantled by qualified personnel provided with special tools. According to another characteristic of the invention, the sleeve is locked by a headless screw. This headless screw is preferably a special screw embedded in the sleeve, the end of which is brought into contact with the member to be connected.
D'autres caractéristiques et avantages de l'invention apparaîtront au cours de la description qui va suivre d'un mode particulier de réalisation, donné uniquement à titre d'exemple non limitatif, en regard des dessins qui représentent
- La figure 1, une vue en coupe d'un dispositif de sécurité
selon l'invention monté sur un robinet mural
- la figure 2, une vue du manchon amont
- la figure 3, une vue de face du manchon aval dans le cas
d'un robinet.Other characteristics and advantages of the invention will appear during the description which follows of a particular embodiment, given solely by way of nonlimiting example, with reference to the drawings which represent
- Figure 1, a sectional view of a safety device
according to the invention mounted on a wall tap
- Figure 2, a view of the upstream sleeve
- Figure 3, a front view of the downstream sleeve in the case
of a tap.
Dans l'exemple représenté, il s'agit d'assurer la sécurité vis à vis du démontage d'un robinet mural muni de deux embouts respectivement amont par lequel arrive le gaz et aval relié au flexible 2 du type mentionné ci-dessus. Le robinet 1 est muni de deux embouts 3 et 4 permettant son raccordement d'une part, à l'arrivée du gaz 5 qui est habituellement un tuyau rigide en cuivre et au flexible 2.In the example shown, it is a question of ensuring safety with regard to the dismantling of a wall-mounted tap provided with two ends respectively upstream by which the gas arrives and downstream connected to the flexible 2 of the type mentioned above. The tap 1 is provided with two nozzles 3 and 4 allowing its connection on the one hand, to the arrival of the gas 5 which is usually a rigid copper pipe and to the hose 2.
Le raccordement se fait comme connu en soi à l'aide d'écrou 7 ou 8 emprisonnant un joint d'étanchéité (non représenté). Les filetages des embouts 3 et 4 sont habituellement filetés au pas du gaz 1/2 pouce. On distingue sur la figure 1 l'écrou 8 monté prisonnier sur une extrémité du flexible 2, la bague de sertissage 9 qui sertit la pièce de raccordement sur le flexible 2.The connection is made as known per se using nut 7 or 8 enclosing a seal (not shown). The threads of end fittings 3 and 4 are usually threaded with a 1/2 inch gas thread. A distinction is made in FIG. 1 between the nut 8 mounted captive on one end of the hose 2, the crimping ring 9 which crimps the connection piece on the hose 2.
Tout ce qui précède décrit un montage classique valable tant en ce qui concerne les flexibles en caoutchouc que les flexibles pour le gaz en acier inoxydable. La présente invention vise à éviter que les écrous 7 et 8 puissent être dévissés tant dans un souci de sécurité que dans un souci de protection contre le vol. All of the above describes a conventional arrangement which is valid for both rubber hoses and gas hoses made of stainless steel. The present invention aims to avoid that the nuts 7 and 8 can be unscrewed both for security reasons and for protection against theft.
Selon l'invention, on dispose, avant le serrage des écrous et le montage des canalisations sur l'un ou sur chacun des côtés, un manchon de sécurité respectivement 10 et 11. Ces manchons présentent un diamètre intérieur légèrement supérieur à l'enveloppe de l'écrou qui, dans l'exemple représenté, est un écrou de 24. Dans ce cas, le diamètre extérieur du manchon peut être de 30 mm le diamètre intérieur étant de 27 mm La longueur du manchon peut être quelconque mais, par exemple, pour un raccordement avec un tuyau rigide elle est de 30 mm et pour un tuyau flexible de 45 mm. Ce qui importe, c'est que la présence de cette bague ou manchon empêche l'accès aux pans des écrous.According to the invention, there is, before tightening the nuts and mounting the pipes on one or each of the sides, a safety sleeve 10 and 11 respectively. These sleeves have an internal diameter slightly greater than the envelope of the nut which, in the example shown, is a nut of 24. In this case, the outside diameter of the sleeve can be 30 mm, the inside diameter being 27 mm The length of the sleeve can be any, but, for example, for a connection with a rigid pipe it is 30 mm and for a flexible pipe of 45 mm. What matters is that the presence of this ring or sleeve prevents access to the sides of the nuts.
Comme cela apparaît sur les figures 2 et 3 qui représentent respectivement les manchons 11 et 10, il est possible dans le cas d'un montage sur robinet de prévoir des encoches 12, 15 permettant l'appui des manchons contre la périphérie du robinet. Après avoir réalisé la connexion du tuyau d'arrivée de gaz sur le robinet et du flexible sur la sortie de celui-ci, on fait glisser les bagues 10, 11 en position contre le corps du robinet 1. Bien entendu, il s'agit de verrouiller lesdits manchons pour éviter leur démontage. Dans un mode particulier de réalisation de l'invention, ce verrouillage est obtenu à l'aide de deux vis 13 sans tête qui se vissent dans des filetages 14 de manière à venir en appui sur les embouts 3 et 4, leur tête étant noyée dans les manchons.As shown in FIGS. 2 and 3 which respectively represent the sleeves 11 and 10, it is possible in the case of mounting on a valve to provide notches 12, 15 allowing the sleeves to rest against the periphery of the valve. After having made the connection of the gas inlet pipe to the valve and the hose to the outlet thereof, the rings 10, 11 are slid into position against the body of the valve 1. Of course, this is to lock said sleeves to prevent their disassembly. In a particular embodiment of the invention, this locking is obtained by means of two headless screws 13 which are screwed into threads 14 so as to come to bear on the end pieces 3 and 4, their heads being embedded in sleeves.
Si l'on veut toutefois, permettre le démontage de l'ensemble par un personnel qualifié, il est possible de prévoir à l'extrémité supérieure des vis 13 un relief particulier ne permettant pas l'emploi des outils ordinaires mais nécessitant une clé spéciale non disponible dans le commerce. Dans ce cas, le personnel spécialisé peut dévisser les vis 13, dégager les manchons 10 et 11 des écrous 7 et 8 pour pouvoir dévisser les écrous.If, however, it is desired to allow disassembly of the assembly by qualified personnel, it is possible to provide at the upper end of the screws 13 a particular relief not allowing the use of ordinary tools but requiring a special key not commercially available. In this case, specialized personnel can unscrew the screws 13, disengage the sleeves 10 and 11 from the nuts 7 and 8 in order to be able to unscrew the nuts.
La présente invention évite notamment dans le cas d'habitation en location que le locataire enlève le flexible lors de son déménagement.The present invention prevents in particular in the case of rental accommodation that the tenant removes the hose during his move.
I1 va de soi que de nombreuses variantes peuvent être apportées, notamment par substitution de moyens techniques équivalents, sans sortir pour cela du cadre de l'invention. It goes without saying that many variants can be made, in particular by substitution of equivalent technical means, without going beyond the ambit of the invention.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9504515A FR2733028B1 (en) | 1995-04-14 | 1995-04-14 | SAFETY DEVICE FOR FLEXIBLE PIPES |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9504515A FR2733028B1 (en) | 1995-04-14 | 1995-04-14 | SAFETY DEVICE FOR FLEXIBLE PIPES |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2733028A1 true FR2733028A1 (en) | 1996-10-18 |
FR2733028B1 FR2733028B1 (en) | 1999-07-16 |
Family
ID=9478136
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9504515A Expired - Fee Related FR2733028B1 (en) | 1995-04-14 | 1995-04-14 | SAFETY DEVICE FOR FLEXIBLE PIPES |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2733028B1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2811738A1 (en) * | 2000-07-13 | 2002-01-18 | Perfect Goal Inc | Safety system for coupling between a mains gas tap and flexible pipe comprises rigid sleeve and ring to prevent unauthorised dismantling |
FR2832207A1 (en) | 2001-11-14 | 2003-05-16 | Gazinox S A | Security device for preventing access to the junction between a flexible pipe and a valve coupling to a domestic gas appliance, comprises two sleeve elements that are pushed together so that they mesh in a secure manner |
FR2845752A1 (en) * | 2002-10-11 | 2004-04-16 | Gazinox S A | Safety assembly comprising tap and pipe for connecting cooker to gas supply, tap body hollow end having connector to gas supply and body outlet comprising hollow cylindrical segment to which flexible pipe is connected by sleeve |
WO2006002459A1 (en) * | 2004-07-02 | 2006-01-12 | Australasian Steel Products Pty Ltd | Hose assembly safety equipment |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB347639A (en) * | 1930-01-29 | 1931-04-29 | Stone J & Co Ltd | Improvements in and connected with pipe unions |
GB624386A (en) * | 1946-12-16 | 1949-06-07 | Napier & Son Ltd | Improvements in or relating to locking devices for pipe unions and other like separable parts |
US2795437A (en) * | 1955-05-17 | 1957-06-11 | Mueller Co | Removable guide and support sleeve for meter nuts |
US5348349A (en) * | 1993-11-22 | 1994-09-20 | Sloane Norman S | Splined safety lock |
US5362111A (en) * | 1993-09-24 | 1994-11-08 | Vsi Corporation | Anti-rotation locking device for preventing separation of coupling nuts from fluid lines |
-
1995
- 1995-04-14 FR FR9504515A patent/FR2733028B1/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB347639A (en) * | 1930-01-29 | 1931-04-29 | Stone J & Co Ltd | Improvements in and connected with pipe unions |
GB624386A (en) * | 1946-12-16 | 1949-06-07 | Napier & Son Ltd | Improvements in or relating to locking devices for pipe unions and other like separable parts |
US2795437A (en) * | 1955-05-17 | 1957-06-11 | Mueller Co | Removable guide and support sleeve for meter nuts |
US5362111A (en) * | 1993-09-24 | 1994-11-08 | Vsi Corporation | Anti-rotation locking device for preventing separation of coupling nuts from fluid lines |
US5348349A (en) * | 1993-11-22 | 1994-09-20 | Sloane Norman S | Splined safety lock |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2811738A1 (en) * | 2000-07-13 | 2002-01-18 | Perfect Goal Inc | Safety system for coupling between a mains gas tap and flexible pipe comprises rigid sleeve and ring to prevent unauthorised dismantling |
FR2832207A1 (en) | 2001-11-14 | 2003-05-16 | Gazinox S A | Security device for preventing access to the junction between a flexible pipe and a valve coupling to a domestic gas appliance, comprises two sleeve elements that are pushed together so that they mesh in a secure manner |
FR2845752A1 (en) * | 2002-10-11 | 2004-04-16 | Gazinox S A | Safety assembly comprising tap and pipe for connecting cooker to gas supply, tap body hollow end having connector to gas supply and body outlet comprising hollow cylindrical segment to which flexible pipe is connected by sleeve |
WO2006002459A1 (en) * | 2004-07-02 | 2006-01-12 | Australasian Steel Products Pty Ltd | Hose assembly safety equipment |
Also Published As
Publication number | Publication date |
---|---|
FR2733028B1 (en) | 1999-07-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |
Effective date: 20061230 |