EP2856002A1 - Plug for a fluid coupling, corresponding valve, bottle and filling method - Google Patents

Plug for a fluid coupling, corresponding valve, bottle and filling method

Info

Publication number
EP2856002A1
EP2856002A1 EP13715341.7A EP13715341A EP2856002A1 EP 2856002 A1 EP2856002 A1 EP 2856002A1 EP 13715341 A EP13715341 A EP 13715341A EP 2856002 A1 EP2856002 A1 EP 2856002A1
Authority
EP
European Patent Office
Prior art keywords
plug
seal
connector
fitting
longitudinal axis
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
EP13715341.7A
Other languages
German (de)
French (fr)
Other versions
EP2856002B1 (en
Inventor
Antoine Frenal
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.)
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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 LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Publication of EP2856002A1 publication Critical patent/EP2856002A1/en
Application granted granted Critical
Publication of EP2856002B1 publication Critical patent/EP2856002B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/06—Closures, e.g. cap, breakable member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/04—Methods of, or means for, filling the material into the containers or receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • B65B7/2828—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers inserting and rotating screw stoppers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0308—Protective caps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0388—Arrangement of valves, regulators, filters
    • F17C2205/0394—Arrangement of valves, regulators, filters in direct contact with the pressure vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/011—Oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/014—Nitrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/018—Acetylene
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/035—High pressure (>10 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/07—Applications for household use
    • F17C2270/0745—Gas bottles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/6851—With casing, support, protector or static constructional installations
    • Y10T137/7043—Guards and shields
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/6851—With casing, support, protector or static constructional installations
    • Y10T137/7043—Guards and shields
    • Y10T137/7062—Valve guards
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7069—With lock or seal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7069—With lock or seal
    • Y10T137/71—With seal

Definitions

  • the present invention relates to a plug for a fluid bottle valve fluid connection and to a corresponding valve, bottle and filling method.
  • the invention relates more particularly to a plug for fluidic connection of a valve for a pressurized fluid bottle, in particular a filling connection and possibly a withdrawal connection, the stopper comprising a hooking sleeve intended to be threaded onto a coupling, the sleeve extending around a central longitudinal axis, the sheath having, on its inner surface and at a first end, a threaded portion intended to cooperate with a conjugate threaded portion formed on the outer surface of a coupling for its screwing / unscrewing by rotation about a direction parallel to the longitudinal axis.
  • the invention relates in particular to a protective cap of a filling connector.
  • the invention relates to a reusable removable cap which makes it possible to protect the surface of a filling connector intended to cooperate sealingly with a filling tool.
  • the plug may or may not be sealed to close the filling connector tightly or not.
  • the invention relates in particular to a valve with or without built-in pressure reducer for fluid container.
  • the invention applies in particular but in no way limiting to the devices described in EP1274957.
  • This document describes the use of a plug to be mounted on a fill connector having a geometry making difficult access to unauthorized users.
  • the plug has a non-standard geometry requiring a suitable tool.
  • the plug described in this document has, in its inner part, a bellows-shaped seal which is placed above the filling connector to prevent the intrusion of dust. In case of leakage, the seal deforms and releases gas to the outside.
  • this cap has several moving parts relative to each other and a spring to arrange it in a locked or unlocked state. This structure increases the risk of poor installation by an operator. In addition, the bellows of this plug is likely to deteriorate which may reduce the protection performance of the connector. In addition, in the case where the application requires a sealed cap, the structure of the cap does not however ensure a seal of the connection, for example in case of leakage of the valve located at the connection.
  • this device does not effectively control whether the cap has been disassembled and reassembled by an unauthorized user.
  • An object of the present invention is to overcome all or part of the disadvantages of the prior art noted above.
  • the stopper according to the invention is essentially characterized in that the threaded portion comprises at least one recess parallel to the longitudinal axis, projection according to a plane orthogonal to the longitudinal axis, the at least one recess being secant with the circle of smaller diameter of the thread, and in that the inner surface of the sleeve comprises, at a second end opposite to the first end, an axis extending inside the sleeve in a direction parallel to the longitudinal axis towards the second end of the sleeve to a free end located between the first and second ends of the sleeve, said free end the axis being provided to form a protective cover for a surface of the connector intended to cooperate with a filling tool.
  • embodiments of the invention may include one or more of the following features:
  • the sealing member of the free end of the sealing spindle comprises an O-ring housed in a circular groove formed on the free end of the spindle,
  • the sealing member of the free end of the sealing spindle comprises an O-ring housed in a circular groove formed on the free end of the spindle,
  • the tapped portion comprises three or four recesses distributed symmetrically about the axis of rotation of the tapping,
  • the sleeve comprises a perforated body provided with at least one opening, the cap comprising a seal of warranty separate from the sheath, the seal of guarantee being intended to be interposed between the connector and the sheath threaded onto the fitting, the seal of guarantee comprising at least one frangible flexible tab, in the assembled position, the at least one lug being extended and projecting into the at least one opening of the sheath and forming a locking stop in rotation of the sheath, the lug being movable mechanically and elastically in a retracted position in the sleeve to selectively remove the rotational locking stop,
  • the seal of guarantee includes a body in the form of flange in one or more pieces and intended to be mounted around a male connector, the body of the seal comprising a plurality of tabs deployed by default towards the outside of the collar and capable of being folded elastically towards the inside of the collar in the retracted position,
  • the sheath has a generally cylindrical solid or perforated shape
  • the sleeve consists of at least one of the following materials: a metal,
  • the guarantee seal comprises two semicircular half-shells intended to be mounted transversely around a generally cylindrical coupling
  • the guarantee seal comprises an open circular crown provided with at least one foldable hinge
  • the angular position of the guarantee seal on the connection around the longitudinal axis is indexed via at least one stop
  • the guarantee seal comprises a plurality of positioning pins cooperating with the external shape of the coupling to ensure a determined angular positioning and a locking of the guarantee seal around the coupling,
  • the angular position of the guarantee seal on the connection around the longitudinal axis is indexed via at least one stop
  • the outer surface of the sleeve comprises at least one impression zone intended to cooperate with a conjugate form of a tool for screwing / unscrewing the plug.
  • the invention relates to a valve for a bottle of pressurized fluid, comprising an internal gas circuit intended to communicate with the internal volume of a bottle via at least one control member such as a valve, the valve comprising a filling connection communicating with the internal circuit for filling the bottle, the filling connection having a body extending along a longitudinal axis, the connector comprising a guide end and a threaded portion, the threaded portion being offset longitudinally relative to at the said guide end in the direction of the longitudinal axis, the guide end comprising a contour provided with at least a protrusion projecting out of the contour, in projection in a plane orthogonal to said longitudinal axis, the at least one projection of the guide end of the connector being secant with a circle centered on said longitudinal axis and whose diameter is equal to the smallest inner and outer diameters of the threaded portion, the valve comprising a plug removably mounted on the connector, wherein plug is in accordance with any of the above or below features and has a conjugate form
  • the sheath constrains the at least one leg in a retracted position to allow the screwing of the cap on the fitting, in the assembled position of the cap on the fitting , the at least one lug coinciding with the at least one opening of the sheath to allow the movement of the at least one tab in the deployed position relative to the connector in the at least one opening and form a stop blocking the rotation of the plug by connection to the connection.
  • the invention may also relate to a bottle of pressurized fluid comprising a valve according to any one of the above characteristics or hereafter.
  • the invention may also relate to a method for filling such a bottle of pressurized fluid, the method comprising a step of connecting a filling tool to a connection without a plug, a step of transferring fluid into the bottle. via the filling tool through the fitting, a step of disconnecting the filling tool relative to the fitting and a step of mounting a plug on said fitting.
  • the step of mounting a stopper on said fitting comprises or not the interposition of a seal between the fitting and the stopper
  • the method comprises, prior to the step of connecting a filling tool to a connection, a step of removing a plug present on the coupling, -
  • the cap comprises a guarantee seal interposed around the connection between the guide end and the threaded portion, the cap is screwed around the fitting provided with the seal of guarantee, the prior step of removing a cap attached to the fitting comprising or not the mechanical failure of at least part of the guarantee seal,
  • the stopper comprising a guarantee seal interposed around a connection between the guide end and the threaded portion, the stopper being screwed around the fitting provided with the guarantee seal, the prior step of removing a stopper fixed to the fitting does not include the mechanical rupture of a portion of the seal of warranty, the removal of the cap comprises, simultaneously with the unscrewing of the cap, a step during which the at least one lug is folded in the retracted position.
  • the invention may also relate to a mounting tool / disassembly of the corresponding plug.
  • the invention may also relate to any alternative device or method comprising any combination of the above or below features.
  • FIGS. 1 to 6 represent perspective views respectively illustrating various steps of mounting a plug on a coupling according to a first possible embodiment of the invention
  • FIG. 7 represents a cross-sectional view of part of the plug along the line AA of FIG. 3,
  • FIG. 8 represents a schematic and partial longitudinal sectional view illustrating a valve connection provided with the plug in the mounted position
  • FIG. 9 represents a perspective view of an enlarged detail of the valve connection provided with the plug of FIG. 8;
  • FIGS. 10 to 13 show perspective views respectively illustrating different steps of disassembling the plug of the coupling by means of a disassembly tool
  • FIG. 14 represents a view in longitudinal section illustrating a step of dismounting the plug of its connection by means of a tool
  • FIG. 15 represents a perspective view illustrating a possible variant embodiment of a guarantee seal that can be used with the cap;
  • FIG. 16 represents a perspective view illustrating the pre-assembly of the guarantee seal of FIG. 15; on a fitting,
  • FIG. 17 illustrates schematically and partially the structure and operation of a possible filling of such a valve.
  • FIG. 1 illustrates an example of a "square-head" filling male connector 2 to which the invention can be applied.
  • a connector 2 is described in particular in document EP1274957. It is a special geometry fitting that prevents unauthorized users or unauthorized fluidic devices from being connected to it.
  • the invention applies to any other type of connection geometry described in the document mentioned above (eg triangular head or other). More generally, the invention applies it to any other male connection geometry (filling and / or withdrawal) having a guide end provided with one, two or more projections offset longitudinally with respect to a threaded portion.
  • the filling connection 2 has an oblong body of generally cylindrical shape extending along a longitudinal axis.
  • the connector 2 comprising a terminal end end 22 intended to cooperate with a filling tool.
  • the end opposite the guide end 22 is intended to be attached to the body of a fluid bottle tap for example.
  • the coupling 2 also comprises a threaded portion 20.
  • the threaded portion 20 is offset longitudinally with respect to said guide end 22 in the direction of the longitudinal axis.
  • the guide end 22 comprises a contour provided with at least one protrusion 23 and, in this example, four protrusions 23.
  • the protrusions 23 protrude out of the contour, for example cylindrical, of the end of the connector 2.
  • the projections 23 of the guide end 22 of the connector 2 are intersecting with a fictitious circle centered on said longitudinal axis and whose diameter is equal to the smallest of the internal and external diameters of the threaded portion 20.
  • the four projections 23 are symmetrically distributed at 90 ° about the axis of rotation of the thread so that, when viewed from above (in a plane orthogonal to the longitudinal axis), the guide end has a general shape. square concentric to the thread 20 but whose corners 23 exceed the diameter of the thread 20.
  • Figures 2 and 3 illustrate the mounting of a plug 1 on the connector 2.
  • the plug 1 comprises a sleeve 1 1 hooking to be threaded on the connector 2.
  • the sleeve 1 1 extends around a central longitudinal axis 13.
  • the sleeve 1 1 comprises, on its inner surface and at a first end, a threaded portion 12 intended to cooperate with the threaded portion 20 of the conjugate 2 (see Figures 7 and 14 in particular).
  • the tapped portion 12 comprises four recesses 16 parallel to the longitudinal axis 13.
  • the recesses 1 16 intersect with the circle of smaller diameter of the thread 12.
  • the recesses 1 16 are conjugate projections 23 of the connector 2. That is to say that the recesses 1 16 are symmetrically distributed at 90 ° around the axis of rotation of the tapping 12. In this way, one or a number limited angular positions given the plug 1 on the connector 2 allows to engage the cap on the connector 2 for screwing.
  • the inner surface of the sleeve 1 1 further comprises, at a second end opposite the first end, an axis 14.
  • the axis 14 which is preferably integral with the sleeve 1 1 extending inside the sheath 1 1 in a direction parallel to the longitudinal axis 13 towards the second end of the sleeve 1 1 to a free end 15.
  • the free end 15 is located between the first and second ends of the sheath 1 1, to the inside of the sheath 1 1.
  • said free end 15 of the axis 14 comprising a sealing member 16 for cooperating in abutment with a surface of a connector for sealing (see Figure 8).
  • the member 16 sealing the free end 15 of the shaft 14 comprises for example an O-ring housed in a circular groove formed on the free end 15 of the axis 14.
  • the free end 15 of the axis 14 may comprise a blind hole in the center of the seal 26 to accommodate a projecting end of a closure valve stem of the connector 2. Downstream of the valve of the connector (not shown for the sake of simplification) , the connector 2 communicates with the internal circuit 7 of the valve to which it belongs.
  • the axis 14 may be without seal.
  • the cap 1 may be associated with an optional seal 3 guaranteeing that it has not been disassembled in an unauthorized manner.
  • the sleeve 1 1 comprises a perforated body provided with several lateral openings 17.
  • the seal 3 of warranty is a piece preferably separate from the sleeve 1 1.
  • the seal 3 of guarantee is intended to be interposed between the connector 2 and the sheath 1 1 threaded and screwed onto the connector 2.
  • the seal 3 guaranteed includes, assembled position, a collar-shaped structure provided with multiple legs 31 flexible and frangible.
  • the tabs 31 are in the normal position extended outwardly of the collar.
  • the seal 31 can be formed of two identical or symmetrical half-shells which are mounted transversely around the coupling 2.
  • the seal 3 of guarantee is interposed around connector 2 between guide end 22 and threaded portion 20.
  • seal 31 is longitudinally locked in both directions in this position by shoulders comprising, for example, the guide end 22 and one or more other shoulders.
  • the seal 3 of guarantee is preferably also locked in rotation on the connector 2 about the longitudinal axis in a determined position.
  • the sleeve 1 1 of the cap 1 can then be threaded onto the fitting 2 provided with the seal 3 of guarantee by coinciding the projections 23 and recesses 1 16 ( Figures 3 and 4).
  • the sleeve 1 1 can then be screwed onto the connector 2.
  • the sleeve 1 1 constrains and compresses the tabs 31 to the connector in a retracted position that does not interfere with the rotation of the sleeve 1 January.
  • the disassembly of the plug 1 without breaking the seal 31 warranty can be achieved by simultaneously achieving the unscrewing of the plug 1, a compression of the tabs 31 towards the inside of the sleeve 1 January.
  • this can be achieved for example by means of a tool 6 of selective disassembly (see mounting) comprising several fingers 60 conjugate openings 17 (see Figure 10).
  • the tool 6 is threaded onto the sleeve 1 1 ( Figure 1 1).
  • the fingers 60 are movable between a spaced position ( Figure 1 1) and a retracted position ( Figure 12).
  • the tool 6 In the retracted position, the fingers 60 press on the tabs 31 towards the inside of the sheath 1 1 to allow unhindered rotation of the sheath 1 1 (FIGS. 13 and 14).
  • the tool 6 also comprises a portion which rotates with the sleeve 1 1.
  • the tool 6 can be manual and / or automatic (pneumatic and / or electrical and / or hydraulic).
  • FIG. 15 an alternative embodiment of the seal 3 optional warranty.
  • the seal 3 of warranty includes a crown body in one piece. This seal 3 is open and provided with at least one foldable hinge 32.
  • a border of the seal 3 may comprise locating pins or pins 33 intended to cooperate with the external shape of the coupling 2 to ensure a determined angular positioning and a maintenance of the seal 3 of guarantee around the fitting 2.
  • pairs of lugs 33 can be placed respectively on either side of each projection 23 of the guide end of the connector 2.
  • the seal 3 of warranty is preferably made of plastic.
  • the sleeve 1 1 is preferably composed of metal or an alloy. It is therefore easy to conceive that the structure of the plug 1 makes it possible to seal inside the connector 2, guaranteeing reliable and secure fastening at the external thread.
  • This configuration provides a longitudinal compressive force of the end of the axis 14 provided with the seal 16 on the inner surface of the connector 2.
  • this structure of plug with an axis that extends into the fitting and can be supported on the bottom of the fitting increases the mechanical cohesion of the plug on the fitting.
  • the structure of the warranty seal 3 which can be used optionally allows to provide an indicator of unintentional and unauthorized opening of the cap. This ensures, in particular to the end user, the safety conditions of the bottle 5 provided with a valve 4 provided with such a connector 2.
  • Such a plug 1 can be (re) mounted on a connection 2 of a valve 4 of fluid bottle 5 (acetylene, nitrogen, oxygen or other) after a filling phase of the bottle 5 by a filling tool 66 (cf. Figure 17).
  • a valve 4 of fluid bottle 5 acetylene, nitrogen, oxygen or other
  • the apertures 17 of the plug make it possible to evacuate gas under pressure by forming vents which limit the risks of unscrewing the cap 1 under pressure.
  • a lateral orifice may be provided in the cap to form a vent for evacuation of the gas under pressure in order to avoid the risk of splashing when unscrewing under pressure with tearing threads thread.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Closures For Containers (AREA)
  • Joints With Pressure Members (AREA)
  • Devices For Dispensing Beverages (AREA)

Abstract

The invention relates to a plug (1) for a fluid coupling including an attachment sleeve (11) to be fitted onto a coupling (2), the sleeve (11) extending about a central longitudinal axis (13), the sleeve (11) comprising, on the inner surface thereof and at a first end, a tapped portion (12) to be used for engaging with a mating threaded portion (20) formed on the outer surface of a coupling (2) with a view to screwing/unscrewing same by rotation about a direction parallel to the longitudinal axis (13), characterised in that the tapped portion (12) includes at least one recess (116) parallel to the longitudinal axis (13), projecting along a plane orthogonal to the longitudinal axis (13), the at least one recess (116) intersecting with the circle having the smallest diameter of the tapping (12), and in that the inner surface of the sleeve (11) includes, at a second end opposite the first end, a pin (14) extending into the sleeve (11) in a direction parallel to the longitudinal axis (13) toward the second end of the sleeve (11) until a free end (15) located between the first and second ends of the sleeve (11), said free end (15) of the pin (14) being provided such as to form a protective cover for a surface of the coupling to be used for engaging with a filling tool.

Description

Bouchon pour raccord fluidique, robinet, bouteille et procédé de  Cap for fluidic connection, tap, bottle and method of
remplissage correspondants  corresponding filling
La présente invention concerne un bouchon pour raccord fluidique de robinet de bouteille de fluide ainsi qu'un robinet, une bouteille et un procédé de remplissage correspondants. The present invention relates to a plug for a fluid bottle valve fluid connection and to a corresponding valve, bottle and filling method.
L'invention concerne plus particulièrement un bouchon pour raccord fluidique de robinet de bouteille de fluide sous pression, notamment raccord de remplissage et éventuellement de soutirage, le bouchon comprenant un fourreau d'accrochage destiné à être enfilé sur un raccord, le fourreau s'étendant autour d'un axe longitudinal central, le fourreau comportant, sur sa surface intérieure et à une première extrémité, une portion taraudée destinée à coopérer avec une portion filetée conjuguée formée sur la surface extérieure d'un raccord en vue de son vissage/dévissage par rotation autour d'une direction parallèle à l'axe longitudinal.  The invention relates more particularly to a plug for fluidic connection of a valve for a pressurized fluid bottle, in particular a filling connection and possibly a withdrawal connection, the stopper comprising a hooking sleeve intended to be threaded onto a coupling, the sleeve extending around a central longitudinal axis, the sheath having, on its inner surface and at a first end, a threaded portion intended to cooperate with a conjugate threaded portion formed on the outer surface of a coupling for its screwing / unscrewing by rotation about a direction parallel to the longitudinal axis.
L'invention concerne notamment un bouchon de protection d'un raccord de remplissage. L'invention concerne en particulier un bouchon amovible réutilisable qui permet de protéger la surface d'un raccord de remplissage destinée à coopérer de façon étanche avec un outil de remplissage. Le bouchon peut être étanche ou non pour refermer le raccord de remplissage de façon étanche ou non.  The invention relates in particular to a protective cap of a filling connector. In particular, the invention relates to a reusable removable cap which makes it possible to protect the surface of a filling connector intended to cooperate sealingly with a filling tool. The plug may or may not be sealed to close the filling connector tightly or not.
L'invention concerne notamment un robinet avec ou sans détendeur intégré pour récipient de fluide sous pression.  The invention relates in particular to a valve with or without built-in pressure reducer for fluid container.
L'invention s'applique notamment mais de façon nullement limitative aux dispositifs décrits dans le document EP1274957. Ce document décrit l'utilisation d'un bouchon destiné à être monté sur un raccord de remplissage ayant une géométrie rendant difficile l'accès à des utilisateurs non autorisés. Le bouchon possède une géométrie non standard nécessitant un outil approprié. Le bouchon décrit dans ce document possède, dans sa partie intérieure, un joint en forme de soufflet qui vient se placer au-dessus du raccord de remplissage pour empêcher l'intrusion de poussière. En cas de fuite, le joint se déforme et permet de libérer du gaz vers l'extérieur.  The invention applies in particular but in no way limiting to the devices described in EP1274957. This document describes the use of a plug to be mounted on a fill connector having a geometry making difficult access to unauthorized users. The plug has a non-standard geometry requiring a suitable tool. The plug described in this document has, in its inner part, a bellows-shaped seal which is placed above the filling connector to prevent the intrusion of dust. In case of leakage, the seal deforms and releases gas to the outside.
La structure de ce bouchon possède plusieurs pièces mobiles les unes relativement aux autres ainsi qu'un ressort pour le disposer dans un état verrouillé ou non verrouillé. Cette structure augmente les risques d'un mauvais montage de la part d'un opérateur. De plus, le soufflet de ce bouchon est susceptible de s'abîmer ce qui risque de diminuer les performances de protection du raccord. De plus, dans le cas où l'application nécessite un bouchon étanche, la structure de ce bouchon ne permet cependant pas de garantir une étanchéité du raccord, par exemple en cas de fuite du clapet situé au niveau du raccord. The structure of this cap has several moving parts relative to each other and a spring to arrange it in a locked or unlocked state. This structure increases the risk of poor installation by an operator. In addition, the bellows of this plug is likely to deteriorate which may reduce the protection performance of the connector. In addition, in the case where the application requires a sealed cap, the structure of the cap does not however ensure a seal of the connection, for example in case of leakage of the valve located at the connection.
Enfin, ce dispositif ne permet pas de contrôler efficacement si le bouchon a fait l'objet d'un démontage et d'un remontage par un utilisateur non autorisé.  Finally, this device does not effectively control whether the cap has been disassembled and reassembled by an unauthorized user.
Un but de la présente invention est de pallier tout ou partie des inconvénients de l'art antérieur relevés ci-dessus.  An object of the present invention is to overcome all or part of the disadvantages of the prior art noted above.
A cette fin, le bouchon selon l'invention, par ailleurs conforme à la définition générique qu'en donne le préambule ci-dessus, est essentiellement caractérisé en ce que la portion taraudée comprend au moins un évidement parallèle à l'axe longitudinal, en projection selon un plan orthogonal à l'axe longitudinal, le au moins un évidement étant sécant avec le cercle de plus petit diamètre du taraudage, et en ce que la surface intérieure du fourreau comprend, au niveau d'une seconde extrémité opposée à la première extrémité, un axe, s'étendant à l'intérieur du fourreau selon une direction parallèle à l'axe longitudinal en direction de la seconde extrémité du fourreau jusqu'à une extrémité libre située entre les première et seconde extrémités du fourreau, ladite extrémité libre de l'axe étant prévue pour former un cache de protection pour une surface du raccord destinée à coopérer avec un outil de remplissage.  To this end, the stopper according to the invention, moreover in accordance with the generic definition given in the preamble above, is essentially characterized in that the threaded portion comprises at least one recess parallel to the longitudinal axis, projection according to a plane orthogonal to the longitudinal axis, the at least one recess being secant with the circle of smaller diameter of the thread, and in that the inner surface of the sleeve comprises, at a second end opposite to the first end, an axis extending inside the sleeve in a direction parallel to the longitudinal axis towards the second end of the sleeve to a free end located between the first and second ends of the sleeve, said free end the axis being provided to form a protective cover for a surface of the connector intended to cooperate with a filling tool.
Par ailleurs, des modes de réalisation de l'invention peuvent comporter l'une ou plusieurs des caractéristiques suivantes :  Furthermore, embodiments of the invention may include one or more of the following features:
- l'organe d'étanchéité de l'extrémité libre de l'axe d'étanchéité comprend un joint torique logé dans une gorge circulaire formée sur l'extrémité libre de l'axe, the sealing member of the free end of the sealing spindle comprises an O-ring housed in a circular groove formed on the free end of the spindle,
- l'organe d'étanchéité de l'extrémité libre de l'axe d'étanchéité comprend un joint torique logé dans une gorge circulaire formée sur l'extrémité libre de l'axe,the sealing member of the free end of the sealing spindle comprises an O-ring housed in a circular groove formed on the free end of the spindle,
- la portion taraudée comprend trois ou quatre évidements répartis symétriquement autour de l'axe de rotation du taraudage, the tapped portion comprises three or four recesses distributed symmetrically about the axis of rotation of the tapping,
- le fourreau comprend un corps ajouré muni d'au moins une ouverture, le bouchon comprenant un sceau de garantie distinct du fourreau, le sceau de garantie étant destiné à être interposé entre le raccord et le fourreau enfilé sur le raccord, le sceau de garanti comprenant au moins une patte flexible frangible, en position assemblée, la au moins une patte étant déployée et faisant saillie dans la au moins une ouverture du fourreau et formant une butée de blocage en rotation du fourreau, la patte étant déplaçable mécaniquement et de façon élastique dans une position rétractée dans le fourreau pour supprimer sélectivement la butée de blocage en rotation,  - The sleeve comprises a perforated body provided with at least one opening, the cap comprising a seal of warranty separate from the sheath, the seal of guarantee being intended to be interposed between the connector and the sheath threaded onto the fitting, the seal of guarantee comprising at least one frangible flexible tab, in the assembled position, the at least one lug being extended and projecting into the at least one opening of the sheath and forming a locking stop in rotation of the sheath, the lug being movable mechanically and elastically in a retracted position in the sleeve to selectively remove the rotational locking stop,
- le sceau de garantie comprend un corps en forme de collerette en une ou plusieurs pièces et destiné à être monté autour d'un raccord mâle, le corps du sceau comprenant plusieurs pattes déployées par défaut vers l'extérieur de la collerette et susceptibles d'être rabattue élastiquement vers l'intérieur de la collerette en position rétractée, - the seal of guarantee includes a body in the form of flange in one or more pieces and intended to be mounted around a male connector, the body of the seal comprising a plurality of tabs deployed by default towards the outside of the collar and capable of being folded elastically towards the inside of the collar in the retracted position,
- le fourreau a une forme générale cylindrique pleine ou ajourée,  the sheath has a generally cylindrical solid or perforated shape,
- le fourreau est constitué de l'un au moins des matériaux suivants : un métal,  the sleeve consists of at least one of the following materials: a metal,
- le sceau de garantie comprend deux demi-coquilles semi-circulaires destinées à être montée transversalement autour d'un raccord de forme générale cylindrique,  the guarantee seal comprises two semicircular half-shells intended to be mounted transversely around a generally cylindrical coupling,
- le sceau de garantie comprend une couronne circulaire ouverte munie d'au moins une charnière pliable,  the guarantee seal comprises an open circular crown provided with at least one foldable hinge,
- le sceau de garantie est bloqué longitudinalement sur le raccord entre deux épaulements du raccord,  - the seal of guarantee is blocked longitudinally on the connection between two shoulders of the connection,
- le sceau de garantie est libre en rotation sur le raccord autour de l'axe longitudinal,  - the seal of guarantee is free in rotation on the connection around the longitudinal axis,
- la position angulaire du sceau de garantie sur le raccord autour de l'axe longitudinal est indexée via au moins une butée,  the angular position of the guarantee seal on the connection around the longitudinal axis is indexed via at least one stop,
- le sceau de garantie comprend une pluralité d'ergots de positionnement coopérant avec la forme extérieure du raccord pour assurer un positionnement angulaire déterminé et un blocage du sceau de garantie autour du raccord,  the guarantee seal comprises a plurality of positioning pins cooperating with the external shape of the coupling to ensure a determined angular positioning and a locking of the guarantee seal around the coupling,
- la position angulaire du sceau de garantie sur le raccord autour de l'axe longitudinal est indexée via au moins une butée,  the angular position of the guarantee seal on the connection around the longitudinal axis is indexed via at least one stop,
- le dévissage du bouchon par rapport au raccord sans rabattre simultanément la au moins une patte en position rétractée génère un effort de rupture mécanique non réversible de la au moins une patte par rapport au reste du sceau,  - The unscrewing of the plug with respect to the connection without simultaneously folding the at least one tab in the retracted position generates a non-reversible mechanical breaking force of the at least one leg relative to the remainder of the seal,
- la su rface extérieu re d u fourreau comprend au moins une zone d'empreinte destinées à coopérer avec une forme conjuguée d'un outil de vissage/dévissage du bouchon.  the outer surface of the sleeve comprises at least one impression zone intended to cooperate with a conjugate form of a tool for screwing / unscrewing the plug.
L'invention concerne un robinet pour bouteille de fluide sous pression, comprenant un circuit interne de gaz destiné à communiquer avec le volume interne d'une bouteille via au moins un organe de contrôle tel qu'un clapet, le robinet comprenant un raccord de remplissage communiquant avec le circuit interne en vue du rempl issage de la bouteille, le raccord de rempl issage présentant un corps s'étendant selon un axe longitudinal, le raccord comprenant une extrémité de guidage et un portion filetée, la portion filetée étant décalée longitudinalement par rapport à la ladite extrémité de guidage selon la direction de l'axe longitudinal, l'extrémité de guidage comprenant un contour muni d'au moins une saillie faisant saillie hors du contour, en projection dans un plan orthogonal audit axe longitudinal, la au moins une saillie de l'extrémité de guidage du raccord étant sécante avec un cercle centré sur ledit axe longitudinal et dont le diamètre est égal au plus petit des diamètres interne et externe de la portion filetée, le robinet comprenant un bouchon monté de façon démontable sur le raccord, dans lequel bouchon est conforme à l'une quelconque des caractéristiques ci-dessus ou ci-dessous et a une forme conjuguée dudit raccord, c'est-à-dire que le taraudage du bouchon coopère sélectivement avec le filetage du raccord et le au moins évidement du bouchon est conjugué de la au moins saillie de l'extrémité de guidage de sorte qu'une ou un nombre limité de positions angulaires données du bouchon sur le raccord permet d'engager le bouchon sur la raccord en vue de leur vissage. The invention relates to a valve for a bottle of pressurized fluid, comprising an internal gas circuit intended to communicate with the internal volume of a bottle via at least one control member such as a valve, the valve comprising a filling connection communicating with the internal circuit for filling the bottle, the filling connection having a body extending along a longitudinal axis, the connector comprising a guide end and a threaded portion, the threaded portion being offset longitudinally relative to at the said guide end in the direction of the longitudinal axis, the guide end comprising a contour provided with at least a protrusion projecting out of the contour, in projection in a plane orthogonal to said longitudinal axis, the at least one projection of the guide end of the connector being secant with a circle centered on said longitudinal axis and whose diameter is equal to the smallest inner and outer diameters of the threaded portion, the valve comprising a plug removably mounted on the connector, wherein plug is in accordance with any of the above or below features and has a conjugate form of said connector, that is, the tapping of the plug cooperates selectively with the thread of the connector and the at least one of the plug is conjugated with the at least one projection of the guide end so that one or a limited number of positions angular data of the cap on the fitting allows to engage the cap on the fitting for screwing.
Selon d'autres particularités possibles :  According to other possible features:
- sceau de garantie est interposé autour raccord entre extrémité de guidage et une portion filetée et le bouchon est enfilé et vissés sur le raccord muni du sceau de garantie,  - seal of guarantee is interposed around connection between guide end and a threaded portion and the cap is threaded and screwed on the fitting provided with the seal of guarantee,
- dans la position enfilée et de vissage du bouchon sur le raccord muni du sceau de garantie, le fourreau contraint la au moins une patte dans une position rétractée pour permettre le vissage du bouchon sur le raccord, dans la position montée du bouchon sur le raccord, la au moins une patte coïncidant avec la au moins une ouverture du fourreau pour permettre le déplacement de la au moins une patte en position déployée par rapport au raccord dans la au moins une ouverture et former une butée de blocage de la rotation du bouchon par rapport au raccord.  - In the threaded position and screwing the cap on the fitting with the seal of guarantee, the sheath constrains the at least one leg in a retracted position to allow the screwing of the cap on the fitting, in the assembled position of the cap on the fitting , the at least one lug coinciding with the at least one opening of the sheath to allow the movement of the at least one tab in the deployed position relative to the connector in the at least one opening and form a stop blocking the rotation of the plug by connection to the connection.
L'invention peut concerner également une bouteille de fluide sous pression comprenant un robinet conforme à l'une quelconque des caractéristiques ci- dessus ou ci-après.  The invention may also relate to a bottle of pressurized fluid comprising a valve according to any one of the above characteristics or hereafter.
L'invention peut concerner également un procédé de remplissage d'une telle bouteille de fluide sous pression , le procédé comportant une étape de connexion d'un outil de remplissage sur raccord dépourvu d'un bouchon, une étape de transfert de fluide dans la bouteille via l'outil de remplissage au travers du raccord, une étape de déconnexion de l'outil de remplissage relativement au raccord et une étape de montage d'un bouchon sur ledit raccord.  The invention may also relate to a method for filling such a bottle of pressurized fluid, the method comprising a step of connecting a filling tool to a connection without a plug, a step of transferring fluid into the bottle. via the filling tool through the fitting, a step of disconnecting the filling tool relative to the fitting and a step of mounting a plug on said fitting.
Selon d'autres particularités possibles :  According to other possible features:
- l'étape de montage d'un bouchon sur ledit raccord comprend ou non l'interposition d'un sceau entre le raccord et le bouchon,  the step of mounting a stopper on said fitting comprises or not the interposition of a seal between the fitting and the stopper,
- le procédé comporte, préalablement à l'étape de connexion d'un outil de remplissage sur raccord, une étape de retrait d'un bouchon présent sur le raccord, - le bouchon comprend un sceau de garantie interposé autour raccord entre extrémité de guidage et la portion filetée, le bouchon est vissé autour du raccord muni du sceau de garantie, l'étape préalable de retrait d'un bouchon fixé sur le raccord comprenant ou non la rupture mécanique d'au moins une partie du sceau de garantie, the method comprises, prior to the step of connecting a filling tool to a connection, a step of removing a plug present on the coupling, - The cap comprises a guarantee seal interposed around the connection between the guide end and the threaded portion, the cap is screwed around the fitting provided with the seal of guarantee, the prior step of removing a cap attached to the fitting comprising or not the mechanical failure of at least part of the guarantee seal,
- le bouchon comprenant un sceau de garantie interposé autour raccord entre extrémité de guidage et la portion filetée, le bouchon étant vissé autour du raccord muni du sceau de garantie, l'étape préalable de retrait d'un bouchon fixé sur le raccord ne comprend pas la rupture mécanique d'une partie du sceau de garantie, le retrait du bouchon comprend, simultanément au dévissage du bouchon, une étape durant laquelle la au moins une patte est rabattue en position rétractée.  the stopper comprising a guarantee seal interposed around a connection between the guide end and the threaded portion, the stopper being screwed around the fitting provided with the guarantee seal, the prior step of removing a stopper fixed to the fitting does not include the mechanical rupture of a portion of the seal of warranty, the removal of the cap comprises, simultaneously with the unscrewing of the cap, a step during which the at least one lug is folded in the retracted position.
L'invention peut concerner également un outil de montage/démontage du bouchon correspondant.  The invention may also relate to a mounting tool / disassembly of the corresponding plug.
L'invention peut concerner également tout dispositif ou procédé alternatif comprenant toute combinaison des caractéristiques ci-dessus ou ci-dessous.  The invention may also relate to any alternative device or method comprising any combination of the above or below features.
D'autres particu larités et avantages apparaîtront à la lecture de la description ci-après, faite en référence aux figures dans lesquelles :  Other particularities and advantages will appear on reading the description below, with reference to the figures in which:
- les figures 1 à 6 représentent des vues en perspectives illustrant respectivement différentes étapes de montage d'un bouchon sur un raccord selon un premier mode de réalisation possible de l'invention,  FIGS. 1 to 6 represent perspective views respectively illustrating various steps of mounting a plug on a coupling according to a first possible embodiment of the invention,
- la figure 7 représente une vue en coupe transversale d'une partie du bouchon selon la ligne AA de la figure 3,  FIG. 7 represents a cross-sectional view of part of the plug along the line AA of FIG. 3,
- la figure 8 représente une vue en coupe longitudinale, schématique et partielle, illustrant un raccord de robinet muni du bouchon en position montée, FIG. 8 represents a schematic and partial longitudinal sectional view illustrating a valve connection provided with the plug in the mounted position,
- la figure 9 représente une vue en perspective d'un détail agrandi du raccord de robinet muni du bouchon de la figure 8, FIG. 9 represents a perspective view of an enlarged detail of the valve connection provided with the plug of FIG. 8;
- les figures 10 à 13 représentent des vues en perspectives illustrant respectivement différentes étapes de démontage du bouchon du raccord au moyen d'un outil de démontage,  FIGS. 10 to 13 show perspective views respectively illustrating different steps of disassembling the plug of the coupling by means of a disassembly tool,
- la figure 14 représente une vue en coupe longitudinale illustrant une étape de démontage du bouchon de son raccord au moyen d'un outil,  FIG. 14 represents a view in longitudinal section illustrating a step of dismounting the plug of its connection by means of a tool,
- la figure 15 représente une vue en perspective illustrant une variante de réalisation possible d'un sceau de garantie pouvant être utilisée avec le bouchon, - la figure 16 représente une vue en perspective illustrant le pré-montage du sceau de garantie de la figure 15 sur un raccord,  FIG. 15 represents a perspective view illustrating a possible variant embodiment of a guarantee seal that can be used with the cap; FIG. 16 represents a perspective view illustrating the pre-assembly of the guarantee seal of FIG. 15; on a fitting,
- la figure 1 7 illustre de façon schématique et partielle la structure et le fonctionnement d'un remplissage possible d'un tel robinet. La figure 1 illustre un exemple de raccord 2 mâle de remplissage dit « à tête carrée » auquel peut s'appliquer l'invention. Un tel raccord 2 est décrit notamment dans le document EP1274957. Il s'agit d'un raccord de géométrie particulière qui permet d'éviter que des utilisateurs non autorisés ou des organes fluidiques non homologués ne puissent y être raccordés. Bien entendu, l'invention s'applique à tout autre type de géométrie de raccord décrit dans le document mentionné ci- dessus (par exemple à tête triangulaire ou autre). Plus généralement, l'invention l'applique à toute autre géométrie de raccord mâle (de remplissage et/ou de soutirage) présentant une extrémité de guidage munie d'une, deux ou plus de deux saillies décalées longitudinalement par rapport à une portion filetée. - Figure 17 illustrates schematically and partially the structure and operation of a possible filling of such a valve. FIG. 1 illustrates an example of a "square-head" filling male connector 2 to which the invention can be applied. Such a connector 2 is described in particular in document EP1274957. It is a special geometry fitting that prevents unauthorized users or unauthorized fluidic devices from being connected to it. Of course, the invention applies to any other type of connection geometry described in the document mentioned above (eg triangular head or other). More generally, the invention applies it to any other male connection geometry (filling and / or withdrawal) having a guide end provided with one, two or more projections offset longitudinally with respect to a threaded portion.
Le raccord 2 de remplissage possède un corps oblong de forme générale cylindrique s'étendant selon un axe longitudinal. Le raccord 2 comprenant une extrémité 22 terminale de guidage destinée à coopérer avec un outil de remplissage. L'extrémité opposée à l'extrémité 22 de guidage est prévue pour être fixée au corps d'un robinet de bouteille de fluide par exemple. Le raccord 2 comprend également une portion filetée 20. La portion 20 filetée est décalée longitudinalement par rapport à la ladite extrémité 22 de guidage selon la direction de l'axe longitudinal.  The filling connection 2 has an oblong body of generally cylindrical shape extending along a longitudinal axis. The connector 2 comprising a terminal end end 22 intended to cooperate with a filling tool. The end opposite the guide end 22 is intended to be attached to the body of a fluid bottle tap for example. The coupling 2 also comprises a threaded portion 20. The threaded portion 20 is offset longitudinally with respect to said guide end 22 in the direction of the longitudinal axis.
L'extrémité 22 de guidage comprend un contour muni d'au moins une saillie 23 et, dans cet exemple, quatre saillies 23. Les saillies 23 font saillie hors du contour, par exemple cylindrique, de l'extrémité du raccord 2. En projection dans un plan orthogonal audit axe longitudinal, les saillies 23 de l'extrémité 22 de guidage du raccord 2 sont sécantes avec un cercle fictif centré sur ledit axe longitudinal et dont le diamètre est égal au plus petit des diamètres interne et externe de la portion filetée 20. Les quatre saillies 23 sont répartis symétriquement à 90° autour de l'axe de rotation du filetage de sorte que, en vue de dessus (dans un plan orthogonal à l'axe longitudinal), l'extrémité de guidage a une forme générale carrée concentrique au filetage 20 mais dont les coins 23 dépassent du diamètre du filetage 20.  The guide end 22 comprises a contour provided with at least one protrusion 23 and, in this example, four protrusions 23. The protrusions 23 protrude out of the contour, for example cylindrical, of the end of the connector 2. In projection in a plane orthogonal to said longitudinal axis, the projections 23 of the guide end 22 of the connector 2 are intersecting with a fictitious circle centered on said longitudinal axis and whose diameter is equal to the smallest of the internal and external diameters of the threaded portion 20. The four projections 23 are symmetrically distributed at 90 ° about the axis of rotation of the thread so that, when viewed from above (in a plane orthogonal to the longitudinal axis), the guide end has a general shape. square concentric to the thread 20 but whose corners 23 exceed the diameter of the thread 20.
Les figures 2 et 3 illustrent le montage d'un bouchon 1 sur le raccord 2. Figures 2 and 3 illustrate the mounting of a plug 1 on the connector 2.
Le bouchon 1 comprend un fourreau 1 1 d'accrochage destiné à être enfilé sur le raccord 2. Le fourreau 1 1 s'étend autour d'un axe longitudinal 13 central. Le fourreau 1 1 comporte, sur sa surface intérieure et à une première extrémité, une portion 12 taraudée destinée à coopérer avec la portion filetée 20 conjuguée du raccord 2 (cf. figures 7 et 14 notamment). The plug 1 comprises a sleeve 1 1 hooking to be threaded on the connector 2. The sleeve 1 1 extends around a central longitudinal axis 13. The sleeve 1 1 comprises, on its inner surface and at a first end, a threaded portion 12 intended to cooperate with the threaded portion 20 of the conjugate 2 (see Figures 7 and 14 in particular).
Comme visible aux figures 3 et 7, la portion taraudée 12 comprend quatre évidements 1 16 parallèle à l'axe 13 longitudinal. En projection selon un plan orthogonal à l'axe 13 longitudinal, les évidements 1 16 sont sécants avec le cercle de plus petit diamètre du taraudage 12. As can be seen in FIGS. 3 and 7, the tapped portion 12 comprises four recesses 16 parallel to the longitudinal axis 13. In projection according to a plan orthogonal to the longitudinal axis 13, the recesses 1 16 intersect with the circle of smaller diameter of the thread 12.
Les évidements 1 16 sont conjugués des saillies 23 du raccord 2. C'est-à- dire que les évidements 1 16 sont répartis symétriquement à 90° autour de l'axe de rotation du taraudage 12. De cette façon, une ou un nombre limité de positions angulaires données du bouchon 1 sur le raccord 2 permet d'engager le bouchon sur le raccord 2 en vue de leur vissage.  The recesses 1 16 are conjugate projections 23 of the connector 2. That is to say that the recesses 1 16 are symmetrically distributed at 90 ° around the axis of rotation of the tapping 12. In this way, one or a number limited angular positions given the plug 1 on the connector 2 allows to engage the cap on the connector 2 for screwing.
La surface intérieure du fourreau 1 1 comprend en outre, au niveau d'une seconde extrémité opposée à la première extrémité, un axe 14. L'axe 14 qui est de préférence monobloc avec le fourreau 1 1 s'étendant à l'intérieur du fourreau 1 1 selon une direction parallèle à l'axe 13 longitudinal en direction de la seconde extrémité du fourreau 1 1 jusqu'à une extrémité libre 15. L'extrémité libre 15 est située entre les première et seconde extrémités du fourreau 1 1 , à l'intérieur du fourreau 1 1 . Dans le mode de réalisation de bouchon étanche décrit, ladite extrémité libre 15 de l'axe 14 comprenant un organe 16 d'étanchéité destiné à coopérer en appui avec une surface d'un raccord pour réaliser une étanchéité (cf. figure 8). Comme illustré, l'organe 16 d'étanchéité de l'extrémité libre 15 de l'axe 14 comprend par exemple un joint torique logé dans une gorge circulaire formée sur l'extrémité libre 15 de l'axe 14. Comme illustré également, l'extrémité libre 15 de l'axe 14 peut comporter un trou borgne au centre du joint 26 pour accueillir une extrémité saillante d'une tige de clapet de fermeture du raccord 2. En aval du clapet du raccord (non représenté par soucis de simplification), le raccord 2 communique avec le circuit 7 interne du robinet auquel il appartient.  The inner surface of the sleeve 1 1 further comprises, at a second end opposite the first end, an axis 14. The axis 14 which is preferably integral with the sleeve 1 1 extending inside the sheath 1 1 in a direction parallel to the longitudinal axis 13 towards the second end of the sleeve 1 1 to a free end 15. The free end 15 is located between the first and second ends of the sheath 1 1, to the inside of the sheath 1 1. In the embodiment of sealed cap described, said free end 15 of the axis 14 comprising a sealing member 16 for cooperating in abutment with a surface of a connector for sealing (see Figure 8). As illustrated, the member 16 sealing the free end 15 of the shaft 14 comprises for example an O-ring housed in a circular groove formed on the free end 15 of the axis 14. As also illustrated, the free end 15 of the axis 14 may comprise a blind hole in the center of the seal 26 to accommodate a projecting end of a closure valve stem of the connector 2. Downstream of the valve of the connector (not shown for the sake of simplification) , the connector 2 communicates with the internal circuit 7 of the valve to which it belongs.
Bien entendu, dans le cas où l'application ne nécessite pas un bouchon étanche, l'axe 14 peut être dépourvu de joint.  Of course, in the case where the application does not require a sealed plug, the axis 14 may be without seal.
Comme illustré aux figures, le bouchon 1 peut être associé à un sceau 3 de garantie facultatif attestant qu'il n'a pas été démonté de façon non autorisée. A cet effet, le fourreau 1 1 comprend un corps ajouré muni de plusieurs ouvertures 17 latérales. Le sceau 3 de garantie est une pièce de préférence distincte du fourreau 1 1 . Le sceau 3 de garantie est destiné à être interposé entre le raccord 2 et le fourreau 1 1 enfilé et vissé sur le raccord 2. Dans l'exemple illustré aux figures 2 à 6, 8 et 9, le sceau 3 de garanti comprend, en position assemblée, une structure en forme de collerette munie de plusieurs pattes 31 flexibles et frangibles. Les pattes 31 sont en position normales déployées vers l'extérieur de la collerette. Comme visible à la figure 2, le sceau 31 peut être formé de deux demi-coquilles identiques ou symétriques qui viennent se monter transversalement autour du raccord 2.  As illustrated in the figures, the cap 1 may be associated with an optional seal 3 guaranteeing that it has not been disassembled in an unauthorized manner. For this purpose, the sleeve 1 1 comprises a perforated body provided with several lateral openings 17. The seal 3 of warranty is a piece preferably separate from the sleeve 1 1. The seal 3 of guarantee is intended to be interposed between the connector 2 and the sheath 1 1 threaded and screwed onto the connector 2. In the example illustrated in Figures 2 to 6, 8 and 9, the seal 3 guaranteed includes, assembled position, a collar-shaped structure provided with multiple legs 31 flexible and frangible. The tabs 31 are in the normal position extended outwardly of the collar. As can be seen in FIG. 2, the seal 31 can be formed of two identical or symmetrical half-shells which are mounted transversely around the coupling 2.
De préférence, le sceau 3 de garantie est interposé autour raccord 2 entre extrémité 22 de guidage et la portion filetée 20. Par exemple, le sceau 31 est bloqué longitudinalement dans les deux sens dans cette position par des épaulements comprenant, par exemple, l'extrémité 22 de guidage et un ou plusieurs autres épaulements. Le sceau 3 de garantie est de préférence bloqué également en rotation sur le raccord 2 autour de l'axe longitudinal dans une position déterminée. Preferably, the seal 3 of guarantee is interposed around connector 2 between guide end 22 and threaded portion 20. For example, seal 31 is longitudinally locked in both directions in this position by shoulders comprising, for example, the guide end 22 and one or more other shoulders. The seal 3 of guarantee is preferably also locked in rotation on the connector 2 about the longitudinal axis in a determined position.
Le fourreau 1 1 du bouchon 1 peut ensuite être enfilé sur le raccord 2 muni du sceau 3 de garantie en faisant coïncider les saillies 23 et évidements 1 16 (figures 3 et 4). Le fourreau 1 1 peut ensuite être vissé sur le raccord 2. Durant ces étapes, le fourreau 1 1 contraint et comprime les pattes 31 vers le raccord dans une position rétractée qui n'interfère pas avec la rotation du fourreau 1 1 .  The sleeve 1 1 of the cap 1 can then be threaded onto the fitting 2 provided with the seal 3 of guarantee by coinciding the projections 23 and recesses 1 16 (Figures 3 and 4). The sleeve 1 1 can then be screwed onto the connector 2. During these steps, the sleeve 1 1 constrains and compresses the tabs 31 to the connector in a retracted position that does not interfere with the rotation of the sleeve 1 January.
Dans la position montée (cf. figures 6, 8, 9) l'extrémité 15 de l'axe 14 ferme de façon étanche la sortie du raccord et les pattes 31 coïncident avec les ouvertures 17 du fourreau 1 1 . Les pattes 31 peuvent alors reprendre élastiquement leur position déployée naturelle au travers des ouvertures 17. Dans cette position déployée, les pattes 31 forment des butées de blocage de la rotation du bouchon 1 par rapport au raccord 2. Dans ce cas, le dévissage intempestif du fourreau 1 1 rompt les pattes 31 sécables et ainsi l'intégrité du sceau 31 de garantie.  In the mounted position (see FIGS. 6, 8, 9) the end 15 of the shaft 14 sealingly closes the outlet of the coupling and the lugs 31 coincide with the openings 17 of the sheath 11. The tabs 31 can then elastically recover their natural deployed position through the openings 17. In this extended position, the tabs 31 form stoppers for blocking the rotation of the plug 1 relative to the connector 2. In this case, the untimely unscrewing of the sheath 1 1 breaks the tabs 31 breakable and thus the integrity of the seal 31 warranty.
Comme visible aux figures 1 0 à 1 3, le démontage du bouchon 1 sans rompre le sceau 31 de garantie peut être réalisé en réalisant, simultanément au dévissage du bouchon 1 , une compression des pattes 31 vers l'intérieur du fourreau 1 1 . Comme illustré, ceci peut être réalisé par exemple au moyen d'un outil 6 de démontage sélectif (voir de montage) comprenant plusieurs doigts 60 conjugués des ouvertures 17 (cf. figure 10). L'outil 6 est enfilé sur le fourreau 1 1 (figure 1 1 ). Les doigts 60 sont mobiles entre une position écartée (figure 1 1 ) et une position rétractée (figure 12). En position rétractée, les doigts 60 appuient sur les pattes 31 vers l'intérieur du fourreau 1 1 pour permettre la rotation sans entrave du fourreau 1 1 (figures 13 et 14). A cet effet, l'outil 6 comprend également une portion qui vient se lier en rotation avec le fourreau 1 1 . L'outil 6 peut être manuel et/ou automatique (pneumatique et/ou électrique et/ou hydraulique).  As shown in Figures 1 0 to 1 3, the disassembly of the plug 1 without breaking the seal 31 warranty can be achieved by simultaneously achieving the unscrewing of the plug 1, a compression of the tabs 31 towards the inside of the sleeve 1 January. As illustrated, this can be achieved for example by means of a tool 6 of selective disassembly (see mounting) comprising several fingers 60 conjugate openings 17 (see Figure 10). The tool 6 is threaded onto the sleeve 1 1 (Figure 1 1). The fingers 60 are movable between a spaced position (Figure 1 1) and a retracted position (Figure 12). In the retracted position, the fingers 60 press on the tabs 31 towards the inside of the sheath 1 1 to allow unhindered rotation of the sheath 1 1 (FIGS. 13 and 14). For this purpose, the tool 6 also comprises a portion which rotates with the sleeve 1 1. The tool 6 can be manual and / or automatic (pneumatic and / or electrical and / or hydraulic).
La figure 15 une variante de réalisation possible du sceau 3 de garantie facultatif. Le sceau 3 de garantie comprend un corps en forme de couronne en une pièce. Ce sceau 3 est ouvert et muni d'au moins une charnière 32 pliable. De plus, comme représenté à la figure 15, une bordure du sceau 3 peut comporter des ergots ou pions 33 de positionnement destinés à coopérer avec la forme extérieure du raccord 2 pour assurer un positionnement angulaire déterminé et un maintien du sceau 3 de garantie autour du raccord 2. Comme visible à la figure 16, des paires d'ergots 33 peuvent se placer respectivement de part et d'autre de chaque saillie 23 de l'extrémité de guidage du raccord 2. Figure 15 an alternative embodiment of the seal 3 optional warranty. The seal 3 of warranty includes a crown body in one piece. This seal 3 is open and provided with at least one foldable hinge 32. In addition, as shown in FIG. 15, a border of the seal 3 may comprise locating pins or pins 33 intended to cooperate with the external shape of the coupling 2 to ensure a determined angular positioning and a maintenance of the seal 3 of guarantee around the fitting 2. As shown in the figure 16, pairs of lugs 33 can be placed respectively on either side of each projection 23 of the guide end of the connector 2.
Le sceau 3 de garantie est préférentiel lement constitué de plastique.  The seal 3 of warranty is preferably made of plastic.
Le fourreau 1 1 est préférentiellement composé de métal ou d'un alliage. On conçoit donc aisément que la structure du bouchon 1 permet de réaliser une étanchéité à l'intérieur du raccord 2 en garantissant une fixation fiable et sûre au niveau du filetage 20 extérieur. Cette configuration assure un effort de compression longitudinale de l'extrémité de l'axe 14 muni du joint 16 sur la surface interne du raccord 2. De même, lorsque l'axe 14 est dépourvu de joint (bouchon non étanche), cette structure de bouchon avec un axe qui s'étend dans le raccord et peut prendre appui sur le fond du raccord augment la cohésion mécanique du bouchon sur le raccord.  The sleeve 1 1 is preferably composed of metal or an alloy. It is therefore easy to conceive that the structure of the plug 1 makes it possible to seal inside the connector 2, guaranteeing reliable and secure fastening at the external thread. This configuration provides a longitudinal compressive force of the end of the axis 14 provided with the seal 16 on the inner surface of the connector 2. Similarly, when the axis 14 is free of seal (non-sealed plug), this structure of plug with an axis that extends into the fitting and can be supported on the bottom of the fitting increases the mechanical cohesion of the plug on the fitting.
La structure du sceau 3 de garantie qui peut être utilisé facultativement permet de prévoir un indicateur de la non-ouverture intempestive et non autorisée du bouchon. Ceci permet de garantir, notamment à l'utilisateur final, les conditions de sécurité de la bouteille 5 munie d'un robinet 4 pourvu d'un tel raccord 2.  The structure of the warranty seal 3 which can be used optionally allows to provide an indicator of unintentional and unauthorized opening of the cap. This ensures, in particular to the end user, the safety conditions of the bottle 5 provided with a valve 4 provided with such a connector 2.
Un tel bouchon 1 peut être (re)monté sur un raccord 2 d'un robinet 4 de bouteille 5 de fluide (acétylène, azote, oxygène ou autre) après une phase de remplissage de la bouteille 5 par un outil 66 de remplissage (cf. figure 17).  Such a plug 1 can be (re) mounted on a connection 2 of a valve 4 of fluid bottle 5 (acetylene, nitrogen, oxygen or other) after a filling phase of the bottle 5 by a filling tool 66 (cf. Figure 17).
Les ouvertures 17 du bouchon permettent d'évacuer du gaz sous pression en formant des évents qui limitent les risques de dévissage du bouchon 1 sous pression . Dans le cas où le bouchon 1 est plein (par exemple fourreau sans ouvertures, notamment lorsque le bouchon ne comporte pas de sceau), un orifice latéral peut être prévu dans le bouchon pour former un évent d'évacuation du gaz sous pression afin d'éviter des risques de projection lors d'un dévissage sous pression avec arrachement des filets du filetage.  The apertures 17 of the plug make it possible to evacuate gas under pressure by forming vents which limit the risks of unscrewing the cap 1 under pressure. In the case where the cap 1 is full (for example sheath without openings, especially when the cap does not have a seal), a lateral orifice may be provided in the cap to form a vent for evacuation of the gas under pressure in order to avoid the risk of splashing when unscrewing under pressure with tearing threads thread.

Claims

REVENDICATIONS
1 . Bouchon (1 ) pour raccord fluidique de robinet de bouteille de fluide sous pression, notamment raccord de remplissage et éventuellement de soutirage, le bouchon (1 ) comprenant un fourreau (1 1 ) d'accrochage destiné à être enfilé sur un raccord (2), le fourreau (1 1 ) s'étendant autour d'un axe longitudinal (13) central, le fourreau (1 1 ) comportant, sur sa surface intérieure et à une première extrémité, une portion (12) taraudée destinée à coopérer avec une portion filetée (20) conjuguée formée sur la surface extérieure d'un raccord (2) en vue de son vissage/dévissage par rotation autour d'une direction parallèle à l'axe (13) longitudinal, caractérisé en ce que la portion taraudée (12) comprend au moins un évidement (1 16) parallèle à l'axe (13) longitudinal, en projection selon un plan orthogonal à l'axe (13) longitudinal, le au moins un évidement (1 16) étant sécant avec le cercle de plus petit diamètre du taraudage (12), et en ce que la surface intérieure du fourreau1. Stopper (1) for a fluidic connection of a pressurized fluid bottle valve, in particular a filling connection and possibly a withdrawal connection, the stopper (1) comprising a hooking sleeve (1 1) intended to be threaded onto a fitting (2) , the sheath (1 1) extending around a central longitudinal axis (13), the sheath (1 1) having, on its inner surface and at a first end, a threaded portion (12) intended to cooperate with a threaded portion (20) conjugate formed on the outer surface of a connector (2) for screwing / unscrewing it by rotation about a direction parallel to the longitudinal axis (13), characterized in that the threaded portion ( 12) comprises at least one recess (1 16) parallel to the longitudinal axis (13), in projection along a plane orthogonal to the longitudinal axis (13), the at least one recess (1 16) being intersecting with the circle smaller diameter of the tapping (12), and in that the surface sheath
(1 1 ) comprend, au niveau d'une seconde extrémité opposée à la première extrémité, un axe (14), s'étendant à l'intérieur du fourreau (1 1 ) selon une direction parallèle à l'axe (13) longitudinal en direction de la seconde extrémité du fourreau (1 1 ) jusqu'à une extrémité libre (15) située entre les première et seconde extrémités du fourreau (1 1 ), ladite extrémité libre (15) de l'axe (14) étant prévue pour former un cache de protection pour une surface du raccord destinée à coopérer avec un outil de remplissage, l'extrémité libre (15) de l'axe (14) comprenant un organe (16) d'étanchéité destiné à coopérer en appui avec une surface d'un raccord pour réaliser une étanchéité, l'organe (16) d'étanchéité de l'extrémité libre (15) de l'axe (14) d'étanchéité comprenant un joint torique logé dans une gorge circulaire formée sur l'extrémité libre (15) de l'axe (14). (1 1) comprises, at a second end opposite the first end, an axis (14) extending inside the sheath (1 1) in a direction parallel to the longitudinal axis (13) towards the second end of the sleeve (1 1) to a free end (15) located between the first and second ends of the sleeve (1 1), said free end (15) of the axis (14) being provided to form a protective cover for a surface of the connector intended to cooperate with a filling tool, the free end (15) of the shaft (14) comprising a sealing member (16) intended to cooperate in support with a surface of a connector for sealing, the member (16) for sealing the free end (15) of the sealing shaft (14) comprising an O-ring housed in a circular groove formed on the free end (15) of the axis (14).
2. Bouchon selon la revendication 1 , caractérisé en ce que la portion taraudée (1 2) comprend trois ou quatre évidements (1 16) répartis symétriquement autour de l'axe de rotation du taraudage (12).  2. Stopper according to claim 1, characterized in that the threaded portion (1 2) comprises three or four recesses (1 16) distributed symmetrically about the axis of rotation of the thread (12).
3. Bouchon selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que le fourreau (1 1 ) comprend un corps ajouré muni d'au moins une ouverture (17), le bouchon (1 ) comprenant un sceau (3) de garantie distinct du fourreau (1 1 ), le sceau (3) de garantie étant destiné à être interposé entre le raccord (2) et le fourreau (1 1 ) enfilé sur le raccord (2), le sceau (3) de garanti comprenant au moins une patte (31 ) flexible frangible, en position assemblée, la au moins une patte (31 ) étant déployée et faisant saillie dans la au moins une ouverture (17) du fourreau (1 1 ) et formant une butée de blocage en rotation du fourreau (1 1 ), la patte (31 ) étant déplaçable mécaniquement et de façon élastique dans une position rétractée dans le fourreau (1 1 ) pour supprimer sélectivement la butée de blocage en rotation. 3. Stopper according to any one of claims 1 or 2, characterized in that the sleeve (1 1) comprises a perforated body provided with at least one opening (17), the plug (1) comprising a seal (3). guarantee of the sheath (1 1), the seal (3) of guarantee being intended to be interposed between the connector (2) and the sheath (1 1) threaded on the fitting (2), the seal (3) guaranteed comprising at least one breakable flexible lug (31) in an assembled position, the at least one lug (31) being deployed and projecting into the at least one opening (17) of the sheath (1 1) and forming a stop blocking rotation of the sheath (1 1), the lug (31) being movable mechanically and elastically in a retracted position in the sheath (1 1) to selectively remove the rotational locking stop.
4. Bouchon selon la revendication 3, caractérisé en ce que le sceau (3) de garantie comprend un corps en forme de collerette en une ou plusieurs pièces et destiné à être monté autour d'un raccord (2) mâle, le corps du sceau (3) comprenant plusieurs pattes (31 ) déployées par défaut vers l'extérieur de la collerette et susceptibles d'être rabattue élastiquement vers l'intérieur de la collerette en position rétractée.  4. Stopper according to claim 3, characterized in that the seal (3) of warranty comprises a body-shaped flange in one or more parts and intended to be mounted around a coupling (2) male, the body of the seal (3) comprising a plurality of tabs (31) deployed by default towards the outside of the collar and capable of being folded elastically towards the inside of the collar in the retracted position.
5. Bouchon selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que le fourreau (1 1 ) a une forme générale cylindrique pleine ou ajourée.  5. Stopper according to any one of claims 1 or 2, characterized in that the sheath (1 1) has a generally cylindrical solid or perforated.
6. Bouchon selon l'une quelconque des revendications 3 ou 4, caractérisé en ce que le sceau de garantie est bloqué longitudinalement sur le raccord entre deux épaulements du raccord.  6. Stopper according to any one of claims 3 or 4, characterized in that the warranty seal is locked longitudinally on the connection between two shoulders of the connector.
7. Robinet (4) pour bouteille (5) de fluide sous pression, comprenant un circuit interne de gaz destiné à communiquer avec le volume interne d'une bouteille (5) via au moins un organe de contrôle tel qu'un clapet, le robinet (4) comprenant un raccord (2) de remplissage communiquant avec le circuit interne en vue du remplissage de la bouteille, le raccord (2) de remplissage présentant un corps s'étendant selon un axe longitudinal, le raccord (2) comprenant une extrémité (22) de guidage et un portion filetée (20), la portion (12) filetée étant décalée longitudinalement par rapport à la ladite extrémité (22) de guidage selon la direction de l'axe longitudinal, l'extrémité (22) de guidage comprenant un contour muni d'au moins une saillie (23) faisant saillie hors du contour, en projection dans un plan orthogonal audit axe longitudinal, la au moins une saillie (23) de l'extrémité (22) de guidage du raccord (2) étant sécante avec un cercle centré sur ledit axe longitudinal et dont le diamètre est égal au plus petit des diamètres interne et externe de la portion filetée (20), le robinet (4) comprenant un bouchon (1 ) monté de façon démontable sur le raccord (2), caractérisé en ce que bouchon (1 ) est conforme à l'une quelconque des revendications 1 à 6 et a une forme conjuguée dudit raccord (2), c'est-à-dire que le taraudage (12) du bouchon (1 ) coopère sélectivement avec le filetage du raccord (2) et le au moins évidement (1 16) du bouchon est conjugué de la au moins saillie (23) de l'extrémité (22) de guidage de sorte qu'une ou un nombre limité de positions angulaires données du bouchon (1 ) sur le raccord (2) permet d'engager le bouchon sur la raccord (2) en vue de leur vissage. 7. Tap (4) for a bottle (5) of pressurized fluid, comprising an internal gas circuit intended to communicate with the internal volume of a bottle (5) via at least one control member such as a valve, the valve (4) comprising a filling connection (2) communicating with the internal circuit for filling the bottle, the filling fitting (2) having a body extending along a longitudinal axis, the coupling (2) comprising a guide end (22) and a threaded portion (20), the threaded portion (12) being offset longitudinally with respect to said guide end (22) in the direction of the longitudinal axis, the end (22) of guide comprising an outline provided with at least one protrusion (23) projecting out of the contour, in projection in a plane orthogonal to said longitudinal axis, the at least one projection (23) of the end (22) for guiding the fitting ( 2) being intersecting with a circle centered on said longitudinal axis nal and whose diameter is equal to the smallest of the inner and outer diameters of the threaded portion (20), the valve (4) comprising a plug (1) removably mounted on the connector (2), characterized in that cap (1) is according to any one of claims 1 to 6 and has a conjugate form of said connector (2), that is to say that the tapping (12) of the plug (1) selectively cooperates with the thread of the connection (2) and the at least one recess (1 16) of the plug is conjugated with the at least one protrusion (23) of the guide end (22) so that one or a limited number of given angular positions of the plug ( 1) on the coupling (2) allows to engage the cap on the fitting (2) for screwing.
8. Robinet selon la revendication 7 muni d'un bouchon (1 ) conforme à la revendication 3, 4 ou 6, caractérisé en ce qu'un sceau (3) de garantie est interposé autour raccord (2) entre extrémité (22) de guidage et une portion filetée (20) et en ce que le bouchon (1 ) est enfilé et vissés sur le raccord (2) muni du sceau (3) de garantie. 8. Tap according to claim 7 with a plug (1) according to claim 3, 4 or 6, characterized in that a seal (3) of warranty is interposed around connection (2) between end (22) of guide and a threaded portion (20) and in that the plug (1) is threaded and screwed on the fitting (2) provided with the seal (3) warranty.
9. Robinet selon la revendication 8, caractérisé en ce que dans la position enfilée et de vissage du bouchon (1 ) sur le raccord (2) muni du sceau (3) de garantie, le fourreau (1 1 ) contraint la au moins une patte (31 ) dans une position rétractée pour permettre le vissage du bouchon (1 ) sur le raccord (2) et en ce que, dans la position montée du bouchon (1 ) sur le raccord (2), la au moins une patte (31 ) coïncide avec la au moins une ouverture (17) du fourreau pour permettre le déplacement de la au moins une patte (31 ) en position déployée par rapport au raccord (2) dans la au moins une ouverture (17) et former une butée de blocage de la rotation du bouchon (1 ) par rapport au raccord (2).  9. Tap according to claim 8, characterized in that in the threaded position and screwing the plug (1) on the fitting (2) provided with the seal (3) guarantee, the sleeve (1 1) constrains the at least one lug (31) in a retracted position to allow the cap (1) to be screwed onto the connector (2) and in that, in the mounted position of the plug (1) on the connector (2), the at least one lug ( 31) coincides with the at least one opening (17) of the sleeve to allow the displacement of the at least one lug (31) in the deployed position relative to the connector (2) in the at least one opening (17) and form a stop blocking the rotation of the plug (1) relative to the coupling (2).
10. Bouteille de fluide sous pression comprenant un robinet caractérisé en ce que le robinet (4) est conforme à l'une quelconque des revendications 7 à 9.  10. Bottle of pressurized fluid comprising a valve characterized in that the valve (4) is in accordance with any one of claims 7 to 9.
1 1 . Procédé de remplissage d'une bouteille de fluide sous pression conforme à la revendication 10, caractérisé en ce qu'il comporte une étape de connexion d'un outil (66) de remplissage sur raccord (2) dépourvu d'un bouchon (1 ), une étape de transfert de fluide dans la bouteille via l'outil (66) de remplissage au travers du raccord (2), une étape de déconnexion de l'outil (66) de remplissage relativement au raccord (2) et une étape de montage d'un bouchon (1 ) sur ledit raccord (2).  1 1. Method for filling a pressurized fluid bottle according to claim 10, characterized in that it comprises a step of connecting a filling tool (66) to a fitting (2) without a plug (1) a step of transferring fluid into the bottle via the filling tool (66) through the fitting (2), a step of disconnecting the filling tool (66) from the fitting (2) and a step of mounting a plug (1) on said fitting (2).
12. Procédé selon la revendication 1 1 , caractérisé en ce que l'étape de montage d'un bouchon (1 ) sur ledit raccord (2) comprend l'interposition d'un sceau (3) entre le raccord (2) et le bouchon (1 ).  12. The method of claim 1 1, characterized in that the step of mounting a plug (1) on said connector (2) comprises the interposition of a seal (3) between the connector (2) and the cap (1).
13. Procédé selon la revendication 1 1 ou 12, caractérisé en ce qu'il comporte, préalablement à l'étape de connexion d'un outil (66) de remplissage sur raccord (2), une étape de retrait d'un bouchon (1 ) présent sur le raccord (2).  13. The method of claim 1 1 or 12, characterized in that it comprises, prior to the step of connecting a tool (66) for filling on connection (2), a step of removing a plug ( 1) present on the coupling (2).
14. Procédé selon la revendication 13, caractérisé en ce que le bouchon (1 ) comprend un sceau (3) de garantie interposé autour raccord (2) entre extrémité (22) de guidage et la portion filetée (20), le bouchon (1 ) est vissé autour du raccord (2) muni du sceau (3) de garantie, caractérisé en ce que l'étape préalable de retrait d'un bouchon (1 ) fixé sur le raccord (2) comprend la rupture mécanique d'au moins une partie du sceau (3) de garantie. 14. The method of claim 13, characterized in that the plug (1) comprises a seal (3) of guarantee interposed around the connection (2) between the end (22) of the guide and the threaded portion (20), the plug (1). ) is screwed around the coupling (2) provided with the seal (3) of guarantee, characterized in that the preceding step of removing a plug (1) fixed on the coupling (2) comprises the mechanical breaking of at least part of the seal (3) warranty.
15. Procédé selon la revendication 13, le bouchon (1 ) comprenant un sceau (3) de garantie interposé autour raccord (2) entre extrémité (22) de guidage et la portion filetée (20), le bouchon (1 ) est vissé autour du raccord (2) muni du sceau (3) de garantie, caractérisé en ce que l'étape préalable de retrait d'un bouchon (1 ) fixé sur le raccord (2) ne comprend pas la rupture mécanique d'une partie du sceau (3) de garantie, le retrait du bouchon (1 ) comprend, simultanément au dévissage du bouchon (1 ), une étape durant laquelle la au moins une patte (31 ) est rabattue en position rétractée. 15. The method of claim 13, the plug (1) comprising a seal (3) of guarantee interposed around connection (2) between the end (22) of the guide and the threaded portion (20), the cap (1) is screwed around fitting (2) provided with seal (3) guarantee, characterized in that the prior step of removing a plug (1) attached to the connector (2) does not include the mechanical breakage of part of the seal (3) guarantee, the removal of the plug (1) comprises, simultaneously with the unscrewing of the plug (1), a step during which the at least one lug (31) is folded into the retracted position.
EP13715341.7A 2012-06-04 2013-03-18 Plug for a fluid coupling, corresponding valve, bottle and filling method Active EP2856002B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1255164A FR2991432B1 (en) 2012-06-04 2012-06-04 CAP FOR FLUID CONNECTION, FAUCET, BOTTLE AND FILLING METHOD THEREOF
PCT/FR2013/050560 WO2013182764A1 (en) 2012-06-04 2013-03-18 Plug for a fluid coupling, corresponding valve, bottle and filling method

Publications (2)

Publication Number Publication Date
EP2856002A1 true EP2856002A1 (en) 2015-04-08
EP2856002B1 EP2856002B1 (en) 2018-08-01

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EP13715341.7A Active EP2856002B1 (en) 2012-06-04 2013-03-18 Plug for a fluid coupling, corresponding valve, bottle and filling method

Country Status (13)

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US (1) US9909716B2 (en)
EP (1) EP2856002B1 (en)
JP (1) JP6151356B2 (en)
CN (1) CN104364575B (en)
AR (1) AR091260A1 (en)
AU (1) AU2013273420B2 (en)
BR (1) BR112014030301A2 (en)
CA (1) CA2870890C (en)
DK (1) DK2856002T3 (en)
ES (1) ES2685699T3 (en)
FR (1) FR2991432B1 (en)
WO (1) WO2013182764A1 (en)
ZA (1) ZA201407935B (en)

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Also Published As

Publication number Publication date
CA2870890C (en) 2021-02-09
CN104364575B (en) 2016-05-04
AU2013273420B2 (en) 2017-02-02
ES2685699T3 (en) 2018-10-10
AR091260A1 (en) 2015-01-21
CN104364575A (en) 2015-02-18
DK2856002T3 (en) 2018-09-03
JP6151356B2 (en) 2017-06-21
US20150167896A1 (en) 2015-06-18
JP2015520346A (en) 2015-07-16
AU2013273420A1 (en) 2014-11-27
FR2991432A1 (en) 2013-12-06
US9909716B2 (en) 2018-03-06
ZA201407935B (en) 2015-12-23
CA2870890A1 (en) 2013-12-12
EP2856002B1 (en) 2018-08-01
FR2991432B1 (en) 2015-02-06
WO2013182764A1 (en) 2013-12-12
BR112014030301A2 (en) 2017-06-27

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