EP3114390A1 - Gas distribution tap with fixed based and mobile cap - Google Patents

Gas distribution tap with fixed based and mobile cap

Info

Publication number
EP3114390A1
EP3114390A1 EP15709235.4A EP15709235A EP3114390A1 EP 3114390 A1 EP3114390 A1 EP 3114390A1 EP 15709235 A EP15709235 A EP 15709235A EP 3114390 A1 EP3114390 A1 EP 3114390A1
Authority
EP
European Patent Office
Prior art keywords
cap
gas
valve
base
expansion
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
EP15709235.4A
Other languages
German (de)
French (fr)
Other versions
EP3114390B1 (en
Inventor
Glenn VAN INGELGEM
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.)
Air Liquide Sante France SA
Original Assignee
Air Liquide Sante France SA
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 Air Liquide Sante France SA filed Critical Air Liquide Sante France SA
Publication of EP3114390A1 publication Critical patent/EP3114390A1/en
Application granted granted Critical
Publication of EP3114390B1 publication Critical patent/EP3114390B1/en
Not-in-force 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
    • F17C13/04—Arrangement or mounting of valves
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03—Orientation
    • F17C2201/032—Orientation with substantially vertical main axis
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/058—Size portable (<30 l)
    • 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
    • F17C2205/0323—Valves
    • F17C2205/0329—Valves manually actuated
    • 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
    • F17C2205/0323—Valves
    • F17C2205/0335—Check-valves or non-return valves
    • 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
    • F17C2205/0382—Constructional details of valves, regulators
    • F17C2205/0385—Constructional details of valves, regulators in blocks or units
    • 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
    • F17C2221/016—Noble gases (Ar, Kr, Xe)
    • F17C2221/017—Helium
    • 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
    • F17C2221/03—Mixtures
    • 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
    • F17C2223/036—Very high pressure (>80 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
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/0123—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
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
    • F17C2225/033—Small pressure, e.g. for liquefied gas
    • 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
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
    • F17C2225/035—High pressure, i.e. between 10 and 80 bars
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/02—Improving properties related to fluid or fluid transfer
    • F17C2260/028—Avoiding unauthorised transfer
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/03—Dealing with losses
    • F17C2260/035—Dealing with losses of fluid
    • F17C2260/036—Avoiding leaks
    • 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
    • F17C2270/02—Applications for medical applications
    • F17C2270/025—Breathing

Definitions

  • the invention relates to a gas distribution valve comprising an integrated gas expansion system, and a gas container, such as a gas cylinder, equipped with such a valve, and their use for dispensing oxygen. medical.
  • an individual When an individual is suffering from a malaise or an accident outside and / or away from a health care facility, such as a hospital or the like, it may be administered continuously by inhalation of oxygen gas while waiting for the arrival of emergency services or emergency services, such as ambulance, fireman, emergency doctor ...
  • emergency services or emergency services such as ambulance, fireman, emergency doctor ...
  • the pressure of the oxygen delivered to the victim can be reduced to a low pressure, for example of the order of 3 to 5 bar, within an integrated pressure regulator valve block, commonly called “RDI block” or more simply “RDI", arranged on the gas bottle.
  • RDI block integrated pressure regulator valve block
  • the gas outlet of the RDI block is fluidly connected to a respiratory interface, such as a mask or respiratory goggles, via a flexible conduit for example that conveys low pressure oxygen to the respiratory interface.
  • US-A-2,199,040 teaches a gas distribution valve comprising a base and an internal gas expansion system.
  • a movable cap overcomes the base.
  • the valve seat completely closes the expansion hole and prevents any expansion of gas.
  • the relief valve moves away from a given distance from the valve seat so as to release the expansion orifice and allow a reduction in gas pressure.
  • the user acts on a pivoting lever that will push a spring and act on a diaphragm that will push the cap and then release the trigger hole.
  • Such an architecture is complex.
  • the opening of the valve after its actuation by the user, is not irreversible and depends on the operation of the lever, which is not practical in the case of use in an emergency medical situation for example.
  • the problem is to propose a gas dispensing valve, in particular medical oxygen, and a gas container equipped with such a tap that is easy to use, even for a person not formed or having no knowledge or experience in the handling of such a gas valve, and which can be used quickly to assist an individual suffering from a malaise or an accident, outside and / or away from a hospital or similar type of care establishment, for example in a public place or in a small medical or medical office type medical facility.
  • the solution of the invention is based on a gas distribution valve, in particular for a medical oxygen bottle, comprising a base and an internal gas expansion system, in which:
  • the internal gas expansion system comprises a relief valve cooperating with a valve seat at the level of which an expansion orifice opens, and
  • the base comprises a high pressure gas inlet orifice and is crossed by a high pressure gas passage fluidly connecting said high pressure gas inlet port to the expansion orifice of the valve seat;
  • said valve further comprising:
  • a cap surmounting the base and having a low pressure gas passage opening at a gas outlet orifice, said cap being movable relative to the base between at least:
  • a detent position in which the cap allows the expansion valve to move away from a given distance from the valve seat so as to release the expansion orifice and to allow a reduction in gas pressure between the valve and the seat of valve, and a circulation of low pressure gas in the gas passage at low pressure of the cap, at least one elastic element elastically pushing the cap in a direction tending to move it away from the base to move it from the closed position to the detent position, and
  • a locking device cooperating with the base and the cap to hold the cap in the closed position comprising at least one locking pin and a gripping member that can be manually gripped by a user, characterized in that the locking rod of the locking device passes through a passage of the cap and cooperates with a housing of the base to maintain the cap in the closed position.
  • the gas distribution valve of the invention may comprise one or more of the following technical characteristics:
  • the cap is movable in translation relative to the base.
  • the locking rod of the locking device is secured to the gripping member.
  • the gripping member is a handle.
  • the cap is guided during its movement between the closed position and the detent position, preferably it is guided by one or more pins, abutments, guide rails or the like.
  • the elastic element is arranged between the base and the cap.
  • the rod is removed from the housing and the passageway in the cap, when the user operates a pull on the handle.
  • the locking rod of the locking device passes through a passage of the cap and cooperates with a housing of the base to maintain the cap in the closed position. Conversely, a withdrawal of the rod from the housing of the base allows movement of the cap from the closed position to the detent position due to the action of the elastic member.
  • the cap forms a sleeve sliding around a portion of the base.
  • the cap acts on the expansion valve via at least one actuator element, preferably the actuator element is arranged between the cap and the base.
  • the elastic element acts on the actuator element to elastically push the cap in a direction tending to move away from the base.
  • the elastic element comprises at least one spring.
  • the cap comprises an outlet connection through which the gas passage passes at low pressure and carrying the gas outlet orifice.
  • the outlet fitting projects vertically and coaxially to the axis (AA) of the valve.
  • the base further comprises a fixing end shaped to allow attachment of the valve on a gas container.
  • the fixing end carries a thread for fixing by screwing the valve on a gas container.
  • the actuator element comprises an elongate tubular portion comprising an internal passage for the low pressure gas and carrying at one of its ends, a flange integral with the tubular portion.
  • the actuator element acts on the expansion valve via its other end or free end.
  • the elastic element acts on the actuator element to elastically push the cap in a direction tending to move away from the base.
  • the elastic element acts on the flange of the actuator element.
  • the internal passage of the elongated tubular portion of the actuator element is in fluid communication with the low pressure gas passage of the cap.
  • sleeve part comprising an internal passage in which the actuator element slides during the transition from the closed position to the detent position.
  • the sleeve part comprises a peripheral shoulder on which the elastic element acts.
  • the base, the cap, the sleeve part and the actuator element are formed of at least one material selected from copper alloys, including brass, steels and stainless steels.
  • the base comprises a filling port.
  • the base comprises a needle or electronic pressure gauge.
  • the invention further relates to a gas container, such as a gas bottle, comprising a container body adapted to and adapted to contain pressurized gas and a valve according to the invention attached to said container body, preferably the gas is oxygen.
  • a gas container such as a gas cylinder, as described above equipped with a valve according to the invention for storing and dispensing a gas, in particular oxygen medical quality.
  • FIG. 1 represents an embodiment of a gas distribution valve according to the invention
  • Figure 2 shows the valve of Figure 1 attached to a gas cylinder
  • FIGS. 3 and 4 are views in longitudinal section of the tap of FIGS. 1 and 2,
  • FIG. 5 is an enlarged view of the valve expansion system of FIG. 3.
  • FIGS. 1 to 5 show an embodiment of a gas distribution valve 1, in particular of medical oxygen, according to FIG. invention intended to equip a gas container 30, preferably a gas bottle, typically a small gas bottle having for example a water capacity of less than 4 liters, typically of the order of 2 to 2.9 liters.
  • This valve 1 is of the integrated pressure reducer type, that is to say it incorporates an internal gas expansion system 20, 21, 22 comprising, in a conventional manner, an expansion valve 20 cooperating with a valve seat 21 at which opens an expansion orifice 22.
  • This expansion system 20, 21, 22 reduces the pressure of the gas, that is to say, to relax the gas at high pressure, that is to say at a high pressure of up to several hundred bar, for example 130 to 200 bar, in low pressure gas, that is to say at a pressure compatible with its administration by inhalation to a patient, typically at a low pressure of the order of a few bar.
  • valve 1 makes its use very intuitive and easy, including by people not previously trained in the handling of medical gases bottled.
  • This valve 1 is also gas-tight, compact, lightweight, easy to open but impossible to close after opening / release of the gas, as explained below.
  • the valve 1 of the invention is formed of several parts cooperating with each other as explained below.
  • it comprises a base 2 forming the lower part of the valve 1 and a movable cap 12 which overcomes the base 2 and forms the upper part of the valve 1.
  • the base 2 comprises an attachment end 6 shaped to allow attachment of the valve 1 on the neck of a gas bottle 30.
  • this fixing end 6 is cylindrical, conical or frustoconical and has an external thread 8 allowing a fixing by screwing the valve 1 to the threaded neck of a gas container 30, that is to say at the outlet of the hollow cylindrical body 31 containing the gas.
  • a high-pressure gas inlet 3 is provided on said fixing end 6 and makes it possible to put in fluid communication the internal volume of the gas container 30 and a high-pressure gas passage 5 passing through the base 2.
  • the high pressure gas passage 5 is an internal conduit that fluidly connects said high pressure gas inlet port 3 to the expansion port 22 of the aforementioned gas expansion system 20, 21, 22. It enables the high pressure gas, for example oxygen at a pressure between 150 and 200 bar, to be conveyed from the gas container to said gas expansion system 20, 21, 22 where it can undergo a reduction. pressure as explained above.
  • the base 2 is surmounted by a cap 12 having the shape of a cup, a bell or the like, which comprises a passage of low-pressure gas opening out at an outlet orifice.
  • gas 4 such as a calibrated orifice delivering a given flow rate of gas, carried here by a gas outlet connector 7, for example olive type, which has just connected a flexible conduit for feeding a respiratory interface, such as a mask or analog, serving to supply the patient with oxygen.
  • the gas outlet connection 7 is carried by the upper end 12a of the cap 12 and protrudes upwards, that is to say vertically and coaxially with the axis AA of the valve, as shown in Figures 1 to 4, so as to allow easy connection of the flexible conduit by the user.
  • the lower end 12b of the cap 12 forms a skirt or sleeve movable around a portion of the base 1, that is to say the upper part of the base 2. More specifically, the cap 12 is mobile in translation relative to the base 2 between at least one so-called “closing” position and a so-called “relaxation” position.
  • the cap 2 is retained on the base 2 to prevent it separates by two pins or abutments 41, 42 (see Figure 4). They also guide the cap 2 during its passage from the closed position to that of relaxation.
  • any other holding and / or guiding system can be used.
  • the cap 12 acts directly or indirectly on the expansion valve 20 to push said expansion valve 20 against the valve seat 21 so as to completely close the expansion orifice 22 and thus to prevent any expansion of gas within the expansion system 20, 21, 22. Since the gas can not escape through the expansion orifice 22, no pressure reduction of the gas can take place and it is then kept confined in the 2, in particular in the high pressure gas passage 5 passing through the base 2.
  • Figures 3 to 5 illustrate the closed position.
  • cap 12 acts indirectly on the expansion valve 20 since it acts on it by means of an actuator element 16, arranged between the cap 12 and the base 2.
  • the actuator element 16 comprises an elongated tubular portion 24 with an internal passage 25 for the low-pressure gas and carrying, at one of its ends 24b, a ring or flange 23 integral with the tubular portion 24.
  • the outer face of the flange 23 is in contact (in 26) with the inner wall of the cap 12 and the elastic member 13 comes to exert an elastic force on the inner face of the flange 23 so as to push the flange 23 towards the cap 12.
  • the free end 24a of the elongated tubular portion 24 itself acts mechanically on the valve 20 relaxation.
  • the cap 12 is slightly upwardly shifted under the effect of the restoring force exerted by the elastic element 13 which pushes back the actuator element 16 and the cap 12, which allows the expansion valve 20 to move away from a given distance, preferably prefixed, of the valve seat 21 so as to release the expansion orifice 22 and thus to allow a reduction in pressure of the gas by passing it between the valve 20 and the valve seat 21.
  • the low pressure gas thus obtained, by oxygen at a pressure of the order of 4 to 5 bar is discharged through the passage of low pressure gas 15 of the cap 12 and delivered by the low pressure gas outlet port 4 carried by the connector 7 .
  • the elastic element 13 bears, at its upper end 13b, on the flange 23 of the actuating element 16 and, at its lower end 13a, on a sleeve part 19, which comprises a peripheral shoulder 27. More specifically, the lower end 13a of the elastic element 13 presses on the upper face of said peripheral shoulder 27, while the lower face of the peripheral shoulder 27 comes to bear (in 28 ) on the base 2.
  • the sleeve part 19 comprises a cylindrical internal passage in which the actuating element 16 slides and, more specifically, the free end 24a of the tubular part 24 of said actuator element 16, when the cap 12 moves in translation relative to the base 2 between the closed position and the expansion position, under the effect of the elastic force resulting from the elastic element 13.
  • the expansion valve 20 is also arranged in the cylindrical internal passage of the sleeve part 19.
  • the high-pressure gas exiting the gas cylinder 30 is first conveyed through the high-pressure gas passage 5, then is expanded to the desired low-pressure value between the valve 20 and the seat
  • the low-pressure gas thus obtained then passes through the inner conduit 25 of the actuator element 16 and finally the passage of low-pressure gas 15 from the cap 12, before emerging at the outlet orifice. of gas 4.
  • seals 18 or the like located in particular between the actuator element 16 and, on the one hand, the cap 12 and, on the other hand, the sleeve part 19, and also between said sleeve part 19 and the base 2.
  • seals 18 arranged in grooves or the like carried by the flange 16 and the elongate tubular portion 24 of the actuator element 16, and also by the shoulder 27 of the sleeve part 19 .
  • the valve 1 of the invention ensures a leak rate of about 10 ⁇ 5 , therefore 100 times lower than the value recommended by ISO 10524-3.
  • valve 1 also comprises a manometer 9 fluidly connected, via a pressure taking duct 10, to the passage of high-pressure gas 5 from the base 2.
  • the base 2, the cap 2 and the other elements, such as the sleeve part 19 and the actuator element 16 are advantageously made of materials that do not react with oxygen to avoid any risk of combustion, for example copper alloy, such as brass, steel, ceramic or other.
  • valve 1 also comprises, at the base 2, a filling port 35, visible in Figure 4, which can be connected a tool type "filling pliers".
  • the filling port 35 is in fluid communication with the high pressure gas passage 5 passing through the base 2. It is used to introduce gas into the container 30 when it is empty.
  • the filling port 35 comprises a filling orifice 36, a filling spring 37 acting on a ball 38 and an internal passage 39 fluidly connecting the filling orifice 36 to the high-pressure gas passage 5.
  • a plug 40 closing condemns access to the housing comprising the ball 38 and the spring 37.
  • an actuating handle 11 allows a quick and irreversible opening of the valve after its actuation by the user, and therefore a release of oxygen.
  • the fact that the gas distribution is irreversible is particularly important in the present case because a gas cylinder thus equipped can be used easily in emergency situations, including by users who are not trained to use this gas. type of bottle.
  • the handle 11 carries one (or more) rod 14 acting as a pin.
  • this (or these) rod 14 passes through an orifice or passage formed in the cap 12 and engages in a housing 42 arranged in the base 2 so as to prevent that the spring 13 can not push the cap 12 upwards.
  • the rod 14 is integral with the handle 11 and serves to block the action of the spring 13 and prevent it from pushing the cap 12 to the detent position. The closure of the valve is thus ensured by a locking of the expansion valve 20 on the seat 21 high pressure. Blocking is performed during the installation of the cap 12 and its holding in the closed position using the rod 14.
  • the rod 14 is then extracted from the housing 42 and the orifice or passage arranged in the cap 12, which releases the cap 12, unlocks the spring 13 and allows it to push the cap 12 towards the position of relaxation.
  • the pressure of the gas within the valve 1 makes it impossible to close and repositioning of the rod 14 is not possible. It follows that once the gas is released, the valve 1 delivers gas until the bottle 30 is completely empty.
  • the surface of the rod 14 is chemically treated to reduce the frictional forces, thus minimizing the force required for its extraction from the housing 42, and thus facilitate its sliding through the orifice or passage in the cover 12 in particular, and its extraction.
  • faucet of the invention has been shown and explained in association with a medical oxygen cylinder, it can also be used with another kind of container and / or with other gases whether medical or not, for example, air, a mixture of N 2/0 2 or He / 0 2.

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Abstract

The invention relates to a gas distribution tap (1) comprising a base (2) and an internal gas pressure regulating system (20, 21, 22). A cap (12) surmounts the base (2), said cap (12) being movable with respect to the base (2) between at least a closed position in which the cap (12) pushes the pressure regulating valve (20) of the internal gas pressure regulating system (20, 21, 22) back against the valve seat (21) so as to completely shut off the pressure regulating orifice (22) and prevent any regulation of the gas, and a pressure regulating position in which the cap (12) allows the pressure regulating valve (20) to move away from the valve seat (21) by a given distance so as to uncover the pressure regulating orifice (22) and allow a reduction in pressure of the gas between the valve (20) and the valve seat (21). An elastic element (13) pushes elastically on the cap (12) in a direction that tends to move it away from the base (2) in order to cause it to switch from the closed position to the pressure regulating position. Gas container (30) equipped with such a tap (1) and use thereof for distributing the gas, notably oxygen.

Description

Robinet de distribution de gaz à embase fixe et coiffe mobile  Gas valve with fixed flange and movable cap
L'invention porte sur un robinet de distribution de gaz comprenant un système de détente de gaz intégré, ainsi qu'un récipient de gaz, telle une bouteille de gaz, équipée d'un tel robinet, et leur utilisation pour distribuer de l'oxygène médical. The invention relates to a gas distribution valve comprising an integrated gas expansion system, and a gas container, such as a gas cylinder, equipped with such a valve, and their use for dispensing oxygen. medical.
Lorsqu'un individu est victime d'un malaise ou d'un accident en dehors et/ou loin d'un établissement de soins, tel un hôpital ou analogue, on peut lui administrer en continu par inhalation de l'oxygène gazeux en attendant l'arrivée des secours ou services d'urgence, tel qu'ambulance, pompier, médecin urgentiste...  When an individual is suffering from a malaise or an accident outside and / or away from a health care facility, such as a hospital or the like, it may be administered continuously by inhalation of oxygen gas while waiting for the arrival of emergency services or emergency services, such as ambulance, fireman, emergency doctor ...
Pour ce faire, il est classique d'utiliser une bouteille d'oxygène gazeux, dans laquelle de l'oxygène est stocké à une pression pouvant atteindre plusieurs centaines de bar.  To do this, it is conventional to use a gaseous oxygen cylinder, in which oxygen is stored at a pressure of up to several hundred bar.
La pression de l'oxygène distribué à la victime peut être réduite jusqu'à une pression basse, par exemple de l'ordre de 3 à 5 bar, au sein d'un bloc robinet à détendeur intégré, couramment appelé « bloc RDI » ou plus simplement « RDI », agencé sur la bouteille de gaz. La sortie en gaz du bloc RDI est raccordée fluidiquement à une interface respiratoire, tel un masque ou des lunettes respiratoires, par l'intermédiaire d'un conduit flexible par exemple qui véhicule l'oxygène basse pression jusqu'à l'interface respiratoire.  The pressure of the oxygen delivered to the victim can be reduced to a low pressure, for example of the order of 3 to 5 bar, within an integrated pressure regulator valve block, commonly called "RDI block" or more simply "RDI", arranged on the gas bottle. The gas outlet of the RDI block is fluidly connected to a respiratory interface, such as a mask or respiratory goggles, via a flexible conduit for example that conveys low pressure oxygen to the respiratory interface.
Toutefois, les ensembles de distribution de gaz existants comprenant une bouteille de gaz équipée d'un robinet à détente intégrée et éventuellement d'accessoires, tel qu'un insufflateur et un masque, ne sont pas adaptés à une utilisation chez ce type de victimes.  However, existing gas distribution assemblies comprising a gas cylinder equipped with an integrated expansion valve and possibly accessories, such as an insufflator and a mask, are not suitable for use in this type of victims.
En effet, ils nécessitent une formation préalable pour pouvoir être utilisés, alors que les personnes présentes lors d'un malaise ne sont que très rarement formées et capables d'utiliser un tel ensemble. Ainsi, le montage et le raccordement entre eux des différents équipements et matériels peuvent poser problème du fait d'une trop grande complexité, et en particulier la mise en œuvre même du RDI.  Indeed, they require prior training to be used, while those present during a discomfort are very rarely trained and able to use such a set. Thus, the assembly and connection between them of different equipment and materials can be problematic because of too great complexity, and in particular the implementation of the RDI itself.
Le document US-A-2, 199,040 enseigne un robinet de distribution de gaz comprenant une embase et un système de détente de gaz interne. Une coiffe mobile surmonte l'embase. Dans une position de fermeture, le siège de clapet obture totalement l'orifice de détente et empêche toute détente de gaz. Dans une position de détente, laquelle le clapet de détente s'éloigne d'une distance donnée du siège de clapet de manière à libérer l'orifice de détente et à permettre une réduction de pression du gaz. Pour repousser la coiffe et la faire passer de la position de fermeture à la position de détente, l'utilisateur agit sur un levier pivotant qui va repousser un ressort et aller agir sur un diaphragme qui va repousser la coiffe et libérer alors l'orifice de détente. Une telle architecture est complexe. De plus, avec un tel agencement, l'ouverture du robinet, après son actionnement par l'utilisateur, n'est pas irréversible et tributaire de l'actionnement du levier, ce qui n'est pas pratique dans le cas d'une utilisation dans une situation médicale d'urgence par exemple. US-A-2,199,040 teaches a gas distribution valve comprising a base and an internal gas expansion system. A movable cap overcomes the base. In a closed position, the valve seat completely closes the expansion hole and prevents any expansion of gas. In a detent position, the relief valve moves away from a given distance from the valve seat so as to release the expansion orifice and allow a reduction in gas pressure. To push back the cap and move it from the closed position to the relaxed position, the user acts on a pivoting lever that will push a spring and act on a diaphragm that will push the cap and then release the trigger hole. Such an architecture is complex. In addition, with such an arrangement, the opening of the valve, after its actuation by the user, is not irreversible and depends on the operation of the lever, which is not practical in the case of use in an emergency medical situation for example.
Au vu de cela, le problème qui se pose est de proposer un robinet de distribution de gaz, en particulier d'oxygène médical, et un récipient de gaz équipé d'un tel robinet qui soient simple d'utilisation, même pour une personne non formée ou n'ayant aucune connaissance ou expérience dans la manipulation d'un tel robinet de distribution de gaz, et qui puissent être utilisés rapidement pour assister un individu victime d'un malaise ou d'un accident, en dehors et/ou loin d'un établissement de soins de type hôpital ou analogue, par exemple dans un lieu grand public ou encore dans une petite structure médicalisée de type cabinet médical ou dentaire.  In view of this, the problem is to propose a gas dispensing valve, in particular medical oxygen, and a gas container equipped with such a tap that is easy to use, even for a person not formed or having no knowledge or experience in the handling of such a gas valve, and which can be used quickly to assist an individual suffering from a malaise or an accident, outside and / or away from a hospital or similar type of care establishment, for example in a public place or in a small medical or medical office type medical facility.
La solution de l'invention repose sur un robinet de distribution de gaz, en particulier pour bouteille d'oxygène médical, comprenant une embase et un système de détente de gaz interne, dans lequel:  The solution of the invention is based on a gas distribution valve, in particular for a medical oxygen bottle, comprising a base and an internal gas expansion system, in which:
- le système de détente de gaz interne comporte un clapet de détente coopérant avec un siège de clapet au niveau duquel débouche un orifice de détente, et  the internal gas expansion system comprises a relief valve cooperating with a valve seat at the level of which an expansion orifice opens, and
- l'embase comporte un orifice d'entrée de gaz à haute pression et est traversée par un passage de gaz à haute pression reliant fluidiquement ledit orifice d'entrée de gaz à haute pression à l'orifice de détente du siège de clapet,  the base comprises a high pressure gas inlet orifice and is crossed by a high pressure gas passage fluidly connecting said high pressure gas inlet port to the expansion orifice of the valve seat;
ledit robinet comprenant en outre :  said valve further comprising:
- une coiffe surmontant l'embase et comportant un passage de gaz à basse pression débouchant au niveau d'un orifice de sortie de gaz, ladite coiffe étant mobile par rapport à l'embase entre au moins :  - A cap surmounting the base and having a low pressure gas passage opening at a gas outlet orifice, said cap being movable relative to the base between at least:
. une position de fermeture dans laquelle la coiffe vient repousser le clapet de détente contre le siège de clapet de manière à obturer totalement l'orifice de détente et empêcher toute détente de gaz, et  . a closed position in which the cap pushes the relief valve against the valve seat so as to completely close the expansion orifice and prevent any expansion of gas, and
. une position de détente dans laquelle la coiffe permet au clapet de détente de s'éloigner d'une distance donnée du siège de clapet de manière à libérer l'orifice de détente et à permettre une réduction de pression du gaz entre le clapet et le siège de clapet, et une circulation du gaz à basse pression dans le passage de gaz à basse pression de la coiffe, - au moins un élément élastique venant repousser élastiquement la coiffe dans un sens tendant à l'éloigner de l'embase pour la faire passer de la position de fermeture à la position de détente, et . a detent position in which the cap allows the expansion valve to move away from a given distance from the valve seat so as to release the expansion orifice and to allow a reduction in gas pressure between the valve and the seat of valve, and a circulation of low pressure gas in the gas passage at low pressure of the cap, at least one elastic element elastically pushing the cap in a direction tending to move it away from the base to move it from the closed position to the detent position, and
- un dispositif de verrouillage coopérant avec l'embase et la coiffe pour maintenir la coiffe en position de fermeture, le dispositif de verrouillage comprenant au moins une tige de blocage et un organe de préhension pouvant être saisi manuellement par un utilisateur, caractérisé en ce que la tige de blocage du dispositif de verrouillage traverse un passage de la coiffe et coopère avec un logement de l'embase pour maintenir la coiffe en position de fermeture.  - A locking device cooperating with the base and the cap to hold the cap in the closed position, the locking device comprising at least one locking pin and a gripping member that can be manually gripped by a user, characterized in that the locking rod of the locking device passes through a passage of the cap and cooperates with a housing of the base to maintain the cap in the closed position.
Selon le cas, le robinet de distribution de gaz de l'invention peut comprendre l'une ou plusieurs des caractéristiques techniques suivantes :  Depending on the case, the gas distribution valve of the invention may comprise one or more of the following technical characteristics:
- la coiffe est mobile en translation par rapport à l'embase.  - The cap is movable in translation relative to the base.
- la tige de blocage du dispositif de verrouillage est solidaire de l'organe de préhension.  - The locking rod of the locking device is secured to the gripping member.
- l'organe de préhension est une poignée.  - The gripping member is a handle.
- la coiffe est guidée pendant son déplacement entre la position de fermeture et la position de détente, de préférence elle est guidée par un ou plusieurs picots, butées, rails de guidage ou analogues.  - The cap is guided during its movement between the closed position and the detent position, preferably it is guided by one or more pins, abutments, guide rails or the like.
- l'élément élastique est agencé entre l'embase et la coiffe.  the elastic element is arranged between the base and the cap.
- la tige s'extrait du logement et du passage aménagé dans la coiffe, lorsque l'utilisateur opère une traction sur la poignée.  - The rod is removed from the housing and the passageway in the cap, when the user operates a pull on the handle.
- l'extraction ou retrait de la tige hors du logement et du passage aménagé dans la coiffe, libère la coiffe, débloque le ressort et permet audit ressort de repousser la coiffe vers la position de détente.  - Extracting or removing the rod from the housing and the passage in the cap, releases the cap, releases the spring and allows said spring to push the cap to the detent position.
- l'extraction ou retrait de la tige hors du logement et du passage aménagé dans la coiffe est irréversible.  - Extraction or withdrawal of the rod out of the housing and the passageway in the cap is irreversible.
- la tige de blocage du dispositif de verrouillage traverse un passage de la coiffe et coopère avec un logement de l'embase pour maintenir la coiffe en position de fermeture. A l'inverse, un retrait de la tige du logement de l'embase permet un déplacement de la coiffe de la position de fermeture à la position de détente du fait de l'action de l'élément élastique.  - The locking rod of the locking device passes through a passage of the cap and cooperates with a housing of the base to maintain the cap in the closed position. Conversely, a withdrawal of the rod from the housing of the base allows movement of the cap from the closed position to the detent position due to the action of the elastic member.
- la coiffe forme un manchon coulissant autour d'une partie de l'embase.  - The cap forms a sleeve sliding around a portion of the base.
- la coiffe agit sur le clapet de détente par l'intermédiaire d'au moins un élément actionneur, de préférence l'élément actionneur est agencé entre la coiffe et l'embase. - l'élément élastique agit sur l'élément actionneur pour repousser élastiquement la coiffe dans un sens tendant à l'éloigner de l'embase. - The cap acts on the expansion valve via at least one actuator element, preferably the actuator element is arranged between the cap and the base. - The elastic element acts on the actuator element to elastically push the cap in a direction tending to move away from the base.
- l'élément élastique comprend au moins un ressort.  the elastic element comprises at least one spring.
- la coiffe comporte un raccord de sortie traversé par le passage de gaz à basse pression et portant l'orifice de sortie de gaz.  the cap comprises an outlet connection through which the gas passage passes at low pressure and carrying the gas outlet orifice.
- le raccord de sortie se projette verticalement et coaxialement à l'axe (AA) du robinet.  - The outlet fitting projects vertically and coaxially to the axis (AA) of the valve.
- l'embase comprend en outre une extrémité de fixation conformée pour permettre une fixation du robinet sur un récipient de gaz.  - The base further comprises a fixing end shaped to allow attachment of the valve on a gas container.
- l'extrémité de fixation porte un filetage permettant une fixation par vissage du robinet sur un récipient de gaz.  - The fixing end carries a thread for fixing by screwing the valve on a gas container.
- l'élément actionneur comprend une partie tubulaire allongée comprenant un passage interne pour le gaz à basse pression et portant, à l'une de ses extrémités, une collerette solidaire de la partie tubulaire.  - The actuator element comprises an elongate tubular portion comprising an internal passage for the low pressure gas and carrying at one of its ends, a flange integral with the tubular portion.
- l'élément actionneur agit sur le clapet de détente via son autre extrémité ou extrémité libre.  - The actuator element acts on the expansion valve via its other end or free end.
- l'élément élastique agit sur l'élément actionneur pour repousser élastiquement la coiffe dans un sens tendant à l'éloigner de l'embase.  - The elastic element acts on the actuator element to elastically push the cap in a direction tending to move away from the base.
- l'élément élastique agit sur la collerette de l'élément actionneur.  the elastic element acts on the flange of the actuator element.
- le passage interne de la partie tubulaire allongée de l'élément actionneur est en communication fluidique avec le passage de gaz basse pression de la coiffe.  - The internal passage of the elongated tubular portion of the actuator element is in fluid communication with the low pressure gas passage of the cap.
- il comprend en outre une pièce manchon comprenant un passage interne au sein duquel coulisse l'élément actionneur lors du passage de la position de fermeture à la position de détente.  - It further comprises a sleeve part comprising an internal passage in which the actuator element slides during the transition from the closed position to the detent position.
- la pièce manchon comprend un épaulement périphérique sur lequel vient agir l'élément élastique.  the sleeve part comprises a peripheral shoulder on which the elastic element acts.
- l'embase, la coiffe, la pièce manchon et l'élément actionneur sont formé d'au moins un matériau choisi parmi les alliages de cuivre, y compris le laiton, les aciers et les aciers inoxydables.  - The base, the cap, the sleeve part and the actuator element are formed of at least one material selected from copper alloys, including brass, steels and stainless steels.
- l'embase comprend un port de remplissage.  the base comprises a filling port.
- l'embase comprend un manomètre à aiguille ou électronique.  the base comprises a needle or electronic pressure gauge.
L'invention concerne en outre un récipient de gaz, telle une bouteille de gaz, comprenant un corps de récipient apte à et conçu pour contenir un gaz sous pression et un robinet selon l'invention fixé audit corps de récipient, de préférence le gaz est de l'oxygène. L'invention porte en outre sur une utilisation d'un récipient de gaz, telle une bouteille de gaz, telle que décrit ci-avant équipé d'un robinet selon l'invention pour stocker et distribuer un gaz, en particulier de l'oxygène de qualité médical. The invention further relates to a gas container, such as a gas bottle, comprising a container body adapted to and adapted to contain pressurized gas and a valve according to the invention attached to said container body, preferably the gas is oxygen. The invention further relates to a use of a gas container, such as a gas cylinder, as described above equipped with a valve according to the invention for storing and dispensing a gas, in particular oxygen medical quality.
L'invention va maintenant être mieux comprise grâce à la description détaillée suivante, faite à titre illustratif mais non limitatif, en référence aux figures annexées parmi lesquelles :  The invention will now be better understood thanks to the following detailed description, given by way of illustration but without limitation, with reference to the appended figures among which:
- la Figure 1 représente un mode de réalisation d'un robinet de distribution de gaz selon l'invention,  FIG. 1 represents an embodiment of a gas distribution valve according to the invention,
- la Figure 2 montre le robinet de la Figure 1 fixé à une bouteille de gaz,  - Figure 2 shows the valve of Figure 1 attached to a gas cylinder,
- la Figure 3 et 4 sont des vues en coupe longitudinale du robinet des Figures 1 et 2, 3 and 4 are views in longitudinal section of the tap of FIGS. 1 and 2,
- et la Figure 5 est une vue grossie du système de détente du robinet de la Figure 3. Les Figures 1 à 5 représentent un mode de réalisation d'un robinet 1 de distribution de gaz, en particulier d'oxygène médical, selon l'invention destiné à équiper un récipient de gaz 30, de préférence une bouteille de gaz, typiquement une petite bouteille de gaz ayant par exemple une contenance en eau inférieure à 4 litres, typiquement de l'ordre de 2 à 2.9 litres. and FIG. 5 is an enlarged view of the valve expansion system of FIG. 3. FIGS. 1 to 5 show an embodiment of a gas distribution valve 1, in particular of medical oxygen, according to FIG. invention intended to equip a gas container 30, preferably a gas bottle, typically a small gas bottle having for example a water capacity of less than 4 liters, typically of the order of 2 to 2.9 liters.
Ce robinet 1 est de type à détendeur intégré, c'est-à-dire qu'il incorpore un système de détente de gaz interne 20, 21, 22 comprenant, de façon classique, un clapet de détente 20 coopérant avec un siège de clapet 21 au niveau duquel débouche un orifice de détente 22.  This valve 1 is of the integrated pressure reducer type, that is to say it incorporates an internal gas expansion system 20, 21, 22 comprising, in a conventional manner, an expansion valve 20 cooperating with a valve seat 21 at which opens an expansion orifice 22.
Ce système de détente 20, 21, 22 permet de réduire la pression du gaz, c'est-à-dire de détendre le gaz à haute pression, c'est-à-dire à une pression haute pouvant atteindre plusieurs centaines de bar, par exemple 130 à 200 bar, en gaz à basse pression, c'est-à-dire à une pression compatible à son administration par inhalation à un patient, typiquement à une pression basse de l'ordre de quelques bar.  This expansion system 20, 21, 22 reduces the pressure of the gas, that is to say, to relax the gas at high pressure, that is to say at a high pressure of up to several hundred bar, for example 130 to 200 bar, in low pressure gas, that is to say at a pressure compatible with its administration by inhalation to a patient, typically at a low pressure of the order of a few bar.
Cette réduction de pression s'opère entre le clapet 20 et le siège de clapet 21, le gaz haute pression arrivant via l'orifice de détente 22 situé au niveau du siège de clapet 21.  This reduction in pressure takes place between the valve 20 and the valve seat 21, the high-pressure gas arriving via the expansion orifice 22 located at the valve seat 21.
La conception particulière du robinet 1 selon l'invention rend son usage très intuitif et aisé, y compris par les personnes non préalablement formées à la manipulation des gaz médicaux en bouteille.  The particular design of the valve 1 according to the invention makes its use very intuitive and easy, including by people not previously trained in the handling of medical gases bottled.
Il est donc parfaitement adapté à une mise en œuvre dans des situations d'urgence, en particulier à une victime de malaise ou d'un accident lorsque celle-ci se trouve en dehors et/ou loin de tout établissement de soins, tel un hôpital ou analogue. Une bouteille d'oxygène équipée d'un robinet 1 selon l'invention est apte à fournir de l'oxygène médical pendant au moins 30 minutes à un débit constant préfixé de 9 NL/min (i.e. NL = quantité en litre d'02 mesurée à 20°C et pression atmosphérique), pour une bouteille d'oxygène d'environ 15 cm de diamètre et 60 cm de hauteur. It is therefore perfectly suited to implementation in emergency situations, in particular to a victim of discomfort or an accident when it is outside and / or far from any healthcare establishment, such as a hospital. or the like. An oxygen cylinder equipped with a tap 1 according to the invention is capable of supplying medical oxygen for at least 30 minutes at a predetermined constant flow rate of 9 NL / min (ie NL = quantity in liter of 0 2 measured at 20 ° C and atmospheric pressure), for an oxygen cylinder about 15 cm in diameter and 60 cm in height.
Ce robinet 1 est en outre étanche au gaz, compact, léger, facile à ouvrir mais impossible à refermer après ouverture/libération du gaz, comme expliqué ci-après.  This valve 1 is also gas-tight, compact, lightweight, easy to open but impossible to close after opening / release of the gas, as explained below.
Le robinet 1 de l'invention est formé de plusieurs parties venant coopérer les unes avec les autres comme expliqué ci-après.  The valve 1 of the invention is formed of several parts cooperating with each other as explained below.
En particulier, il comprend une embase 2 formant la partie inférieure du robinet 1 et une coiffe 12 mobile qui surmonte l'embase 2 et forme la partie supérieure du robinet 1.  In particular, it comprises a base 2 forming the lower part of the valve 1 and a movable cap 12 which overcomes the base 2 and forms the upper part of the valve 1.
L'embase 2 comprend une extrémité de fixation 6 conformée pour permettre une fixation du robinet 1 sur le col d'une bouteille de gaz 30. Typiquement, cette extrémité de fixation 6 est de forme cylindrique, conique ou tronconique et porte un filetage 8 externe permettant une fixation par vissage du robinet 1 au col taraudé d'un récipient de gaz 30, c'est-à-dire au niveau de la sortie du corps 31 cylindrique creux contenant le gaz.  The base 2 comprises an attachment end 6 shaped to allow attachment of the valve 1 on the neck of a gas bottle 30. Typically, this fixing end 6 is cylindrical, conical or frustoconical and has an external thread 8 allowing a fixing by screwing the valve 1 to the threaded neck of a gas container 30, that is to say at the outlet of the hollow cylindrical body 31 containing the gas.
Un orifice d'entrée de gaz à haute pression 3 est aménagé sur ladite extrémité de fixation 6 et permet de mettre en communication fluidique le volume interne du récipient de gaz 30 et un passage de gaz à haute pression 5 traversant l'embase 2.  A high-pressure gas inlet 3 is provided on said fixing end 6 and makes it possible to put in fluid communication the internal volume of the gas container 30 and a high-pressure gas passage 5 passing through the base 2.
Le passage de gaz à haute pression 5 est un conduit interne qui relie fluidiquement ledit orifice d'entrée de gaz à haute pression 3 à l'orifice de détente 22 du système de détente de gaz 20, 21, 22 susmentionné. Il permet d'acheminer le gaz à haute pression, par exemple de l'oxygène à une pression entre 150 et 200 bar, depuis le récipient de gaz jusqu'audit système de détente de gaz 20, 21, 22 où il peut subir une réduction de pression comme expliqué ci-avant.  The high pressure gas passage 5 is an internal conduit that fluidly connects said high pressure gas inlet port 3 to the expansion port 22 of the aforementioned gas expansion system 20, 21, 22. It enables the high pressure gas, for example oxygen at a pressure between 150 and 200 bar, to be conveyed from the gas container to said gas expansion system 20, 21, 22 where it can undergo a reduction. pressure as explained above.
Comme visible sur les Figures 3 et 4, l'embase 2 est surmontée d'une coiffe 12 ayant une forme de coupelle, de cloche ou analogue, laquelle comprend un passage de gaz à basse pression 15 débouchant au niveau d'un orifice de sortie de gaz 4, tel un orifice calibré délivrant un débit donné de gaz, porté ici par un raccord de sortie de gaz 7, par exemple de type olive, auquel vient de connecter un conduit flexible servant à alimenter une interface respiratoire, tel un masque ou analogue, servant à alimenter le patient en oxygène.  As can be seen in FIGS. 3 and 4, the base 2 is surmounted by a cap 12 having the shape of a cup, a bell or the like, which comprises a passage of low-pressure gas opening out at an outlet orifice. of gas 4, such as a calibrated orifice delivering a given flow rate of gas, carried here by a gas outlet connector 7, for example olive type, which has just connected a flexible conduit for feeding a respiratory interface, such as a mask or analog, serving to supply the patient with oxygen.
Le raccord de sortie de gaz 7 est porté par l'extrémité supérieure 12a de la coiffe 12 et fait saillie vers le haut, c'est-à-dire verticalement et coaxialement à l'axe AA du robinet, comme visible sur les Figures 1 à 4, de manière permettre un raccordement aisé du conduit flexible par l'utilisateur. The gas outlet connection 7 is carried by the upper end 12a of the cap 12 and protrudes upwards, that is to say vertically and coaxially with the axis AA of the valve, as shown in Figures 1 to 4, so as to allow easy connection of the flexible conduit by the user.
L'extrémité inférieure 12b de la coiffe 12 forme une jupe ou un manchon mobile autour d'une partie de l'embase 1, c'est-à-dire la partie supérieure de l'embase 2. Plus précisément, la coiffe 12 est mobile en translation par rapport à l'embase 2 entre au moins une position dite « de fermeture » et une position dite « de détente ».  The lower end 12b of the cap 12 forms a skirt or sleeve movable around a portion of the base 1, that is to say the upper part of the base 2. More specifically, the cap 12 is mobile in translation relative to the base 2 between at least one so-called "closing" position and a so-called "relaxation" position.
La coiffe 2 est retenue sur l'embase 2 pour éviter qu'elle ne s'en sépare par deux picots ou butées 41, 42 (cf. Fig. 4). Elles permettent aussi de guider la coiffe 2 lors de son passage de la position de fermeture à celle de détente. Bien entendu, tout autre système de maintien et/ou de guidage peut être utilisé.  The cap 2 is retained on the base 2 to prevent it separates by two pins or abutments 41, 42 (see Figure 4). They also guide the cap 2 during its passage from the closed position to that of relaxation. Of course, any other holding and / or guiding system can be used.
En position de fermeture, la coiffe 12 vient agir -directement ou indirectement- sur le clapet de détente 20 pour repousser ledit clapet de détente 20 contre le siège de clapet 21 de manière à obturer totalement l'orifice de détente 22 et donc à empêcher ainsi toute détente de gaz au sein du système de détente 20, 21, 22. Le gaz ne pouvant pas s'échapper par l'orifice de détente 22, aucune réduction de pression du gaz ne peut avoir lieu et il est alors maintenu confiné dans l'embase 2, en particulier dans le passage de gaz à haute pression 5 traversant l'embase 2. Les Figures 3 à 5 illustrent la position de fermeture.  In the closed position, the cap 12 acts directly or indirectly on the expansion valve 20 to push said expansion valve 20 against the valve seat 21 so as to completely close the expansion orifice 22 and thus to prevent any expansion of gas within the expansion system 20, 21, 22. Since the gas can not escape through the expansion orifice 22, no pressure reduction of the gas can take place and it is then kept confined in the 2, in particular in the high pressure gas passage 5 passing through the base 2. Figures 3 to 5 illustrate the closed position.
Dans le mode de réalisation illustré sur les Figures 3 à 5, on voit que la coiffe 12 agit indirectement sur le clapet de détente 20 puisqu'elle agit sur celui-ci par l'intermédiaire d'un élément actionneur 16, agencé entre la coiffe 12 et l'embase 2.  In the embodiment illustrated in FIGS. 3 to 5, it can be seen that the cap 12 acts indirectly on the expansion valve 20 since it acts on it by means of an actuator element 16, arranged between the cap 12 and the base 2.
L'élément actionneur 16 comprend une partie tubulaire 24 allongée avec un passage interne 25 pour le gaz basse pression et portant, à l'une de ses extrémités 24b, une couronne ou collerette 23 solidaire de la partie tubulaire 24.  The actuator element 16 comprises an elongated tubular portion 24 with an internal passage 25 for the low-pressure gas and carrying, at one of its ends 24b, a ring or flange 23 integral with the tubular portion 24.
Comme mieux visible sur la Figure 5, la face externe de la collerette 23 est en contact (en 26) avec la paroi interne de la coiffe 12 et l'élément élastique 13 vient quant à lui exercer une force élastique sur la face interne de la collerette 23 de manière à repousser la collerette 23 vers la coiffe 12. Par ailleurs, l'extrémité libre 24a de la partie tubulaire 24 allongée vient elle-même agir mécaniquement sur le clapet 20 de détente.  As best seen in Figure 5, the outer face of the flange 23 is in contact (in 26) with the inner wall of the cap 12 and the elastic member 13 comes to exert an elastic force on the inner face of the flange 23 so as to push the flange 23 towards the cap 12. Moreover, the free end 24a of the elongated tubular portion 24 itself acts mechanically on the valve 20 relaxation.
A l'inverse, en position de détente, la coiffe 12 est légèrement décalée vers le haut sous l'effet de la force de rappel exercée par l'élément élastique 13 qui repousse l'élément actionneur 16 et la coiffe 12, ce qui permet au clapet de détente 20 de s'éloigner d'une distance donnée, préférentiellement préfixée, du siège de clapet 21 de manière à libérer l'orifice de détente 22 et à permettre ainsi une réduction de pression du gaz par passage de celui-ci entre le clapet 20 et le siège de clapet 21. Le gaz à basse pression ainsi obtenu, par exemple de l'oxygène à une pression de l'ordre de 4 à 5 bar est évacué par le passage de gaz à basse pression 15 de la coiffe 12 et délivré par l'orifice de sortie de gaz basse pression 4 porté par le raccord 7. Conversely, in the relaxed position, the cap 12 is slightly upwardly shifted under the effect of the restoring force exerted by the elastic element 13 which pushes back the actuator element 16 and the cap 12, which allows the expansion valve 20 to move away from a given distance, preferably prefixed, of the valve seat 21 so as to release the expansion orifice 22 and thus to allow a reduction in pressure of the gas by passing it between the valve 20 and the valve seat 21. The low pressure gas thus obtained, by oxygen at a pressure of the order of 4 to 5 bar is discharged through the passage of low pressure gas 15 of the cap 12 and delivered by the low pressure gas outlet port 4 carried by the connector 7 .
Comme déjà dit, le (ou les) élément élastique 13, tel un ressort, agencé entre la coiffe 12 et l'embase 2, vient exercer une force tendant à repousser élastiquement la coiffe 12 en éloignement par rapport à l'embase 2 pour la faire passer de la position de fermeture à la position de détente.  As already said, the elastic element (s) 13, such as a spring, arranged between the cap 12 and the base 2, exerts a force tending to elastically push the cap 12 away from the base 2 for the move from the closed position to the relaxed position.
Dans le mode de réalisation illustré sur les Figures 3 à 5, l'élément élastique 13 prend appui, à son extrémité supérieure 13b, sur la collerette 23 de l'élément actionneur 16 et, à son extrémité inférieure 13 a, sur une pièce manchon 19 intermédiaire comprenant un épaulement périphérique 27. Plus précisément, l'extrémité inférieure 13a de l'élément élastique 13 vient appuyer sur la face supérieure dudit épaulement périphérique 27, alors que la face inférieure de l'épaulement périphérique 27 vient prendre appui (en 28) sur l'embase 2.  In the embodiment illustrated in FIGS. 3 to 5, the elastic element 13 bears, at its upper end 13b, on the flange 23 of the actuating element 16 and, at its lower end 13a, on a sleeve part 19, which comprises a peripheral shoulder 27. More specifically, the lower end 13a of the elastic element 13 presses on the upper face of said peripheral shoulder 27, while the lower face of the peripheral shoulder 27 comes to bear (in 28 ) on the base 2.
La pièce manchon 19 comprend un passage interne cylindrique au sein duquel coulisse l'élément actionneur 16 et, plus précisément, l'extrémité libre 24a de la partie tubulaire 24 dudit élément actionneur 16, lorsque la coiffe 12 se déplace en translation par rapport à l'embase 2 entre la position de fermeture et celle de détente, sous l'effet de la force élastique résultant de l'élément élastique 13. Ici, le clapet 20 de détente est aussi agencé dans le passage interne cylindrique de la pièce manchon 19.  The sleeve part 19 comprises a cylindrical internal passage in which the actuating element 16 slides and, more specifically, the free end 24a of the tubular part 24 of said actuator element 16, when the cap 12 moves in translation relative to the base 2 between the closed position and the expansion position, under the effect of the elastic force resulting from the elastic element 13. Here, the expansion valve 20 is also arranged in the cylindrical internal passage of the sleeve part 19.
On comprend que le gaz à haute pression sortant de la bouteille de gaz 30 est d'abord véhiculé par le passage 5 de gaz à haute pression, puis subit une détente jusqu'à la valeur de basse pression souhaitée entre le clapet 20 et le siège de clapet 21. Le gaz à basse pression ainsi obtenu transite ensuite par le conduit interne 25 de l'élément actionneur 16 et enfin le passage de gaz à basse pression 15 de la coiffe 12, avant de déboucher au niveau de l'orifice de sortie de gaz 4.  It will be understood that the high-pressure gas exiting the gas cylinder 30 is first conveyed through the high-pressure gas passage 5, then is expanded to the desired low-pressure value between the valve 20 and the seat The low-pressure gas thus obtained then passes through the inner conduit 25 of the actuator element 16 and finally the passage of low-pressure gas 15 from the cap 12, before emerging at the outlet orifice. of gas 4.
L'étanchéité fluidique de l'ensemble des éléments internes du robinet est assurée par des joints 18 ou analogues, par exemple des joints toriques, situés notamment entre l'élément actionneur 16 et, d'une part, la coiffe 12 et, d'autre part, la pièce manchon 19, et par ailleurs entre ladite pièce manchon 19 et l'embase 2.  The fluidic sealing of all the internal elements of the valve is provided by seals 18 or the like, for example O-rings, located in particular between the actuator element 16 and, on the one hand, the cap 12 and, on the other hand, the sleeve part 19, and also between said sleeve part 19 and the base 2.
Ainsi, on peut voir sur la Figure 5, des joints 18 agencés dans des gorges ou analogues portées par la collerette 16 et par la partie tubulaire 24 allongée de l'élément actionneur 16, et aussi par l'épaulement 27 de la pièce manchon 19. Le robinet 1 de l'invention permet de garantir un taux de fuite d'environ 10~5, donc 100 fois inférieur à la valeur recommandée par la norme ISO 10524-3. Thus, it can be seen in FIG. 5, seals 18 arranged in grooves or the like carried by the flange 16 and the elongate tubular portion 24 of the actuator element 16, and also by the shoulder 27 of the sleeve part 19 . The valve 1 of the invention ensures a leak rate of about 10 ~ 5 , therefore 100 times lower than the value recommended by ISO 10524-3.
Par ailleurs, on voit sur la Figure 3 que le robinet 1 comprend aussi un manomètre 9 raccordé fluidiquement, via un conduit 10 de prise de pression, au passage de gaz à haute pression 5 de l'embase 2.  Furthermore, it can be seen in FIG. 3 that the valve 1 also comprises a manometer 9 fluidly connected, via a pressure taking duct 10, to the passage of high-pressure gas 5 from the base 2.
De préférence, l'embase 2, la coiffe 2 et les autres éléments, tels que la pièce manchon 19 et l'élément actionneur 16, sont avantageusement réalisés en matériaux ne réagissant pas avec l'oxygène pour éviter tout risque de combustion, par exemple en alliage de cuivre, tel du laiton, en acier, en céramique ou autre.  Preferably, the base 2, the cap 2 and the other elements, such as the sleeve part 19 and the actuator element 16, are advantageously made of materials that do not react with oxygen to avoid any risk of combustion, for example copper alloy, such as brass, steel, ceramic or other.
En outre, le robinet 1 comprend aussi, au niveau de l'embase 2, un port de remplissage 35, visible en Figure 4, auquel peut être connecté un outil de type « pince de remplissage ». Le port de remplissage 35 est en communication fluidique avec le passage de gaz à haute pression 5 traversant l'embase 2. Il est utilisé pour introduire du gaz dans le récipient 30 lorsque celui-ci est vide.  In addition, the valve 1 also comprises, at the base 2, a filling port 35, visible in Figure 4, which can be connected a tool type "filling pliers". The filling port 35 is in fluid communication with the high pressure gas passage 5 passing through the base 2. It is used to introduce gas into the container 30 when it is empty.
De manière habituelle, le port de remplissage 35 comprend un orifice de remplissage 36, un ressort de remplissage 37 agissant sur une bille 38 et un passage interne 39 reliant fluidiquement l'orifice de remplissage 36 au passage de gaz à haute pression 5. Un bouchon 40 de fermeture condamne l'accès au logement comprenant la bille 38 et le ressort 37.  Typically, the filling port 35 comprises a filling orifice 36, a filling spring 37 acting on a ball 38 and an internal passage 39 fluidly connecting the filling orifice 36 to the high-pressure gas passage 5. A plug 40 closing condemns access to the housing comprising the ball 38 and the spring 37.
Par ailleurs, une poignée d'actionnement 11 permet une ouverture rapide et irréversible du robinet après son actionnement par l'utilisateur, et donc une libération de l'oxygène. Le fait que la distribution du gaz soit irréversible est particulièrement important dans le cas présent car une bouteille de gaz ainsi équipée peut être utilisée facilement dans les situations d'urgence, y compris par les utilisateurs qui ne sont pas formés à l'utilisation de ce type de bouteille.  Furthermore, an actuating handle 11 allows a quick and irreversible opening of the valve after its actuation by the user, and therefore a release of oxygen. The fact that the gas distribution is irreversible is particularly important in the present case because a gas cylinder thus equipped can be used easily in emergency situations, including by users who are not trained to use this gas. type of bottle.
Plus précisément, la poignée 11 porte une (ou plusieurs) tige 14 faisant office de goupille.  More specifically, the handle 11 carries one (or more) rod 14 acting as a pin.
En position de fermeture, cette (ou ces) tige 14 (cf. Figures 3 et 5) traverse un orifice ou passage aménagé dans la coiffe 12 et vient s'engager dans un logement 42 agencé dans l'embase 2 de manière à empêcher que le ressort 13 ne puisse repousser la coiffe 12 vers le haut. En d'autres termes, la tige 14 est solidaire de la poignée 11 et sert à bloquer l'action du ressort 13 et à l'empêcher de repousser la coiffe 12 vers la position de détente. La fermeture du robinet est donc assurée par un blocage du clapet de détente 20 sur le siège 21 haute pression. Le blocage est effectué lors de la pose de la coiffe 12 et de son maintien en position de fermeture à l'aide de la tige 14. In the closed position, this (or these) rod 14 (see FIGS. 3 and 5) passes through an orifice or passage formed in the cap 12 and engages in a housing 42 arranged in the base 2 so as to prevent that the spring 13 can not push the cap 12 upwards. In other words, the rod 14 is integral with the handle 11 and serves to block the action of the spring 13 and prevent it from pushing the cap 12 to the detent position. The closure of the valve is thus ensured by a locking of the expansion valve 20 on the seat 21 high pressure. Blocking is performed during the installation of the cap 12 and its holding in the closed position using the rod 14.
Par contre, lorsque l'utilisateur tire sur la poignée 11, la tige 14 est alors extraite du logement 42 et de l'orifice ou passage aménagé dans la coiffe 12, ce qui libère la coiffe 12, débloque le ressort 13 et lui permet de repousser la coiffe 12 vers la position de détente. On assiste alors à une ouverture du robinet et une libération du gaz. La pression du gaz au sein du robinet 1 rend impossible sa fermeture et une remise en place de la tige 14 n'est pas possible. Il s'ensuit qu'une fois le gaz libéré, le robinet 1 délivre du gaz jusqu'à ce que la bouteille 30 soit totalement vide.  By cons, when the user pulls on the handle 11, the rod 14 is then extracted from the housing 42 and the orifice or passage arranged in the cap 12, which releases the cap 12, unlocks the spring 13 and allows it to push the cap 12 towards the position of relaxation. We then witness an opening of the tap and a release of the gas. The pressure of the gas within the valve 1 makes it impossible to close and repositioning of the rod 14 is not possible. It follows that once the gas is released, the valve 1 delivers gas until the bottle 30 is completely empty.
De préférence, la surface de la tige 14 est traitée chimiquement pour diminuer les forces de friction, donc minimiser la force nécessaire à son extraction du logement 42, et ainsi faciliter son coulissement au travers l'orifice ou passage aménagé dans la coiffe 12 notamment, et son extraction.  Preferably, the surface of the rod 14 is chemically treated to reduce the frictional forces, thus minimizing the force required for its extraction from the housing 42, and thus facilitate its sliding through the orifice or passage in the cover 12 in particular, and its extraction.
Bien que le robinet de l'invention ait été présenté et expliqué en association avec une bouteille d'oxygène médical, il peut aussi être utilisé avec une autre sorte de récipient et/ou avec d'autres gaz qu'ils soient de qualité médicale ou non, par exemple de l'air, un mélange N2/02 ou He/02. Although the faucet of the invention has been shown and explained in association with a medical oxygen cylinder, it can also be used with another kind of container and / or with other gases whether medical or not, for example, air, a mixture of N 2/0 2 or He / 0 2.

Claims

Revendications claims
1. Robinet (1) de distribution de gaz comprenant une embase (2) et un système de détente de gaz interne (20, 21, 22), dans lequel: A gas distribution valve (1) comprising a base (2) and an internal gas expansion system (20, 21, 22), wherein:
- le système de détente de gaz interne (20, 21, 22) comporte un clapet de détente (20) coopérant avec un siège de clapet (21) au niveau duquel débouche un orifice de détente (22), et  the internal gas expansion system (20, 21, 22) comprises an expansion valve (20) cooperating with a valve seat (21) at the level of which an expansion orifice (22) opens, and
- l'embase (2) comporte un orifice d'entrée de gaz à haute pression (3) et est traversée par un passage de gaz à haute pression (5) reliant fluidiquement ledit orifice d'entrée de gaz à haute pression (3) à l'orifice de détente (22) du siège (21) de clapet, ledit robinet (1) comprenant en outre :  the base (2) comprises a high-pressure gas inlet (3) and is traversed by a high-pressure gas passage (5) fluidly connecting said high-pressure gas inlet (3) at the expansion orifice (22) of the valve seat (21), said valve (1) further comprising:
- une coiffe (12) surmontant l'embase (2) et comportant un passage de gaz à basse pression (15) débouchant au niveau d'un orifice de sortie de gaz (4), ladite coiffe (12) étant mobile par rapport à l'embase (2) entre au moins :  - a cap (12) surmounting the base (2) and having a low pressure gas passage (15) opening at a gas outlet port (4), said cap (12) being movable relative to the base (2) between at least:
. une position de fermeture dans laquelle la coiffe (12) vient repousser le clapet de détente (20) contre le siège de clapet (21) de manière à obturer totalement l'orifice de détente (22) et empêcher toute détente de gaz, et  . a closing position in which the cap (12) pushes the expansion valve (20) against the valve seat (21) so as to completely close the expansion orifice (22) and prevent any expansion of gas, and
. une position de détente dans laquelle la coiffe (12) permet au clapet de détente (20) de s'éloigner d'une distance donnée du siège de clapet (21) de manière à libérer l'orifice de détente (22) et à permettre une réduction de pression du gaz entre le clapet (20) et le siège de clapet (21), et une circulation du gaz à basse pression dans le passage de gaz à basse pression (15) de la coiffe (12),  . a detent position in which the cap (12) allows the expansion valve (20) to move away from a given distance from the valve seat (21) so as to release the expansion orifice (22) and allow a pressure reduction of the gas between the valve (20) and the valve seat (21), and a circulation of the low pressure gas in the low pressure gas passage (15) of the cap (12),
- au moins un élément élastique (13) venant repousser élastiquement la coiffe (12) dans un sens tendant à l'éloigner de l'embase (2) pour la faire passer de la position de fermeture à la position de détente,  - at least one resilient element (13) elastically pushing the cap (12) in a direction tending to move away from the base (2) to move it from the closed position to the detent position,
- un dispositif de verrouillage (11, 14) coopérant avec l'embase (2) et la coiffe (12) pour maintenir la coiffe (12) en position de fermeture, le dispositif de verrouillage (1 1, 14) comprenant au moins une tige de blocage (14) et un organe de préhension (11) pouvant être saisi manuellement par un utilisateur,  a locking device (11, 14) cooperating with the base (2) and the cap (12) to hold the cap (12) in the closed position, the locking device (1 1, 14) comprising at least one locking rod (14) and a gripping member (11) which can be manually grasped by a user,
caractérisé en ce que la tige de blocage (14) du dispositif de verrouillage (11, 14) traverse un passage de la coiffe (12) et coopère avec un logement (42) de l'embase (2) pour maintenir la coiffe (12) en position de fermeture. characterized in that the locking rod (14) of the locking device (11, 14) passes through a passage of the cap (12) and cooperates with a housing (42) of the base (2) to hold the cap (12). ) in the closed position.
2. Robinet selon la revendication précédente, caractérisé en ce que la coiffe (12) est mobile en translation par rapport à l'embase (2). 2. Tap according to the preceding claim, characterized in that the cap (12) is movable in translation relative to the base (2).
3. Robinet selon l'une des revendications précédentes, caractérisé en ce que l'élément élastique (13) est agencé entre l'embase (2) et la coiffe (12). 3. Tap according to one of the preceding claims, characterized in that the elastic element (13) is arranged between the base (2) and the cap (12).
4. Robinet selon la revendication 2, caractérisé en ce que l'organe de préhension (11) est une poignée. 4. Tap according to claim 2, characterized in that the gripping member (11) is a handle.
5. Robinet selon l'une des revendications précédentes, caractérisé en ce que la tige (14) s'extrait du logement (42) et du passage aménagé dans la coiffe (12), lorsque l'utilisateur opère une traction sur la poignée (11). 5. Valve according to one of the preceding claims, characterized in that the rod (14) is extracted from the housing (42) and the passage arranged in the cap (12), when the user operates a pull on the handle ( 11).
6. Robinet selon l'une des revendications précédentes, caractérisé en ce que l'extraction de la tige (14) hors du logement (42) et du passage aménagé dans la coiffe (12), libère la coiffe (12), débloque le ressort (13) et permet audit ressort (13) de repousser la coiffe (12) vers la position de détente 6. Tap according to one of the preceding claims, characterized in that the extraction of the rod (14) out of the housing (42) and the passage arranged in the cap (12), releases the cap (12), unblocks the spring (13) and allows said spring (13) to push the cap (12) towards the detent position
7. Robinet selon l'une des revendications précédentes, caractérisé en ce que la coiffe (12) agit sur le clapet de détente (20) par l'intermédiaire d'au moins un élément actionneur (16) agencé entre la coiffe (12) et l'embase (2). 7. Tap according to one of the preceding claims, characterized in that the cap (12) acts on the expansion valve (20) via at least one actuator element (16) arranged between the cap (12) and the base (2).
8. Robinet selon la revendication 7, caractérisé en ce que l'élément actionneur (16) comprend une partie tubulaire (24) allongée comprenant un passage interne (25) de gaz et portant, à l'une de ses extrémités (24b), une collerette (23) solidaire de la partie tubulaire (24). 8. Valve according to claim 7, characterized in that the actuator element (16) comprises an elongated tubular portion (24) comprising an internal passage (25) of gas and carrying, at one of its ends (24b), a flange (23) integral with the tubular portion (24).
9. Robinet selon l'une des revendications 7 ou 8, caractérisé en ce que l'élément élastique (13) agit sur l'élément actionneur (16) pour repousser élastiquement la coiffe (12) dans un sens tendant à l'éloigner de l'embase (2), de préférence l'élément élastique (13) agit sur la collerette (23) de l'élément actionneur (16). 9. Tap according to one of claims 7 or 8, characterized in that the elastic element (13) acts on the actuator element (16) to elastically push the cap (12) in a direction tending to move away from the base (2), preferably the elastic element (13) acts on the flange (23) of the actuator element (16).
10. Robinet selon l'une des revendications 7 à 9, caractérisé en ce qu'il comprend en outre une pièce manchon (19) comprenant un passage interne au sein duquel coulisse l'élément actionneur (16) lors du passage de la position de fermeture à la position de détente. 10. Tap according to one of claims 7 to 9, characterized in that it further comprises a sleeve part (19) comprising an internal passage in which slides the actuator element (16) during the transition from the closed position to the detent position.
11. Robinet selon la revendication 10, caractérisé en ce que la pièce manchon (19) comprend un épaulement périphérique (27) sur lequel vient agir l'élément élastique11. Tap according to claim 10, characterized in that the sleeve part (19) comprises a peripheral shoulder (27) on which acts the elastic element
(13). (13).
12. Robinet selon l'une des revendications précédentes, caractérisé en ce que :Valve according to one of the preceding claims, characterized in that:
- l'embase (2) comprend en outre une extrémité de fixation (6) conformée pour permettre une fixation du robinet (1) sur un récipient de gaz, de préférence l'extrémité de fixation (6) porte un filetage (8) permettant une fixation par vissage du robinet (1) sur un récipient de gaz, et/ou - The base (2) further comprises a fixing end (6) shaped to allow attachment of the valve (1) on a gas container, preferably the fixing end (6) carries a thread (8) allowing a fixing by screwing the valve (1) on a gas container, and / or
- la coiffe (12) comporte un raccord de sortie (7) traversé par le passage de gaz à basse pression (15) et portant l'orifice de sortie de gaz (4), de préférence le raccord de sortie (7) se projette verticalement et coaxialement à l'axe (AA) du robinet (1).  the cap (12) has an outlet connection (7) through which the low-pressure gas passage (15) passes and carries the gas outlet (4), preferably the outlet connection (7) projects vertically and coaxially to the axis (AA) of the valve (1).
13. Récipient de gaz (30) comprenant un corps de récipient (31) apte à et conçu pour contenir un gaz sous pression et un robinet (1) selon l'une des revendications précédentes fixé audit corps de récipient (31). A gas container (30) comprising a container body (31) adapted to and adapted to contain pressurized gas and a valve (1) according to one of the preceding claims attached to said container body (31).
14. Utilisation d'un récipient de gaz (30) selon la revendication 13 pour stocker et distribuer un gaz, en particulier de l'oxygène. 14. Use of a gas container (30) according to claim 13 for storing and dispensing a gas, in particular oxygen.
EP15709235.4A 2014-03-07 2015-02-10 Gas distribution tap with fixed based and mobile cap Not-in-force EP3114390B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1451856A FR3018330B1 (en) 2014-03-07 2014-03-07 FIXED-STANDING GAS DISTRIBUTION VALVE AND MOBILE COIFFE
PCT/FR2015/050324 WO2015132495A1 (en) 2014-03-07 2015-02-10 Gas distribution tap with fixed based and mobile cap

Publications (2)

Publication Number Publication Date
EP3114390A1 true EP3114390A1 (en) 2017-01-11
EP3114390B1 EP3114390B1 (en) 2018-04-11

Family

ID=51168033

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15709235.4A Not-in-force EP3114390B1 (en) 2014-03-07 2015-02-10 Gas distribution tap with fixed based and mobile cap

Country Status (3)

Country Link
EP (1) EP3114390B1 (en)
FR (1) FR3018330B1 (en)
WO (1) WO2015132495A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7133841B2 (en) * 2018-09-29 2022-09-09 株式会社ネリキ container valve

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2199040A (en) * 1937-12-30 1940-04-30 Cecchet Albino Control valve for gas containers
FR1354955A (en) * 1963-01-29 1964-03-13 Gaz De Petrole Device for controlling the opening and closing of liquefied fuel gas cylinders
GB1039528A (en) * 1963-08-14 1966-08-17 British Oxygen Co Ltd Fluid pressure regulating device
FR2619432B3 (en) * 1987-08-10 1989-10-27 Air Liquide TAP FOR PRESSURE GAS BOTTLE
DE102007003320A1 (en) * 2006-10-04 2008-04-10 Mbb International Group Ag Closing apparatus for pressure tank, which has closed base at one end and container opening at another end, and closure apparatus is arranged for forming cold gas generator

Also Published As

Publication number Publication date
WO2015132495A1 (en) 2015-09-11
FR3018330A1 (en) 2015-09-11
EP3114390B1 (en) 2018-04-11
FR3018330B1 (en) 2016-12-02

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