DK171078B1

DK171078B1 - Pressurised gas bottle connector - uses inter-engageable connector parts to form sealing device to prevent leakage of gas

Info

Publication number: DK171078B1
Application number: DK491887A
Authority: DK
Inventors: Alistair Scott; Peter Frederick Clark
Original assignee: Isoworth Ltd
Priority date: 1987-09-18
Filing date: 1987-09-18
Publication date: 1996-05-28
Also published as: DK491887A; DK491887D0

Abstract

A carbon dioxide gas vessel is fitted with a female (10) and male (16) connector parts. The male part includes a hollow cylindrical male member (14) with a seal (18) and a plunger (30) in a gas passage (28). The position of the plunger is defined by the shoulders (32,34) in the gas passage. The female part comprises a hollow cylindrical element (12) with an inner surface (22) for contacting the seal. In the base of the cylinder a passage (8) is formed containing a rod (6). The two parts are clamped together and fixed to the gas bottle by several clamping devices (48). A solenoid connected to the plunger forces the plunger down onto the rod, depressing the rod and allowing gas to flow through the passages (8) amd (28).

Description

DK 171078 B1DK 171078 B1

Denne opfindelse vedrører en han-konnektordel monteret på en trykluftsledning og indrettet til forbindelse med en hun-konnektordel, som nævnt neden for, omfattende en indstiksdel, der har et hulrum, som står i forbindelse med ledningen, og 5 som er indrettet til en glidbar indføring i en optagelsesdel af hun-konnektordelen, en forseglingsdel til dannelse af en gastæt forsegling mellem optagelsesdelen og indstiksdelen, en ventilaktiveringsdel, der er indrettet til drift af en ventil af hun-konnektordelen til åbning af ventilen, og låseorganer 10 til indbyrdes låsning af han- og hun-konnektordelene, hvor låseorganerne omfatter eftergivende låsefingre, der er placeret uden for indstiksdelen, idet hver finger har et indefter rettet fremspring, der er indrettet til at indgribe med en låseflade af hun-konnektordelen, og organer til at bevæge 15 låsefingrene indefter til en låsestilling og holde fingrene i denne låsestilling, så at indgrebet mellem låsefladen og låsefingrene kan trække indstiksdelen ind i optagelsesdelen og holde indstiksdelen i denne.This invention relates to a male connector part mounted on a compressed air line and arranged for connection to a female connector part, as mentioned below, comprising an insertion part having a cavity which communicates with the line and which is arranged for a slidable insertion into a receiving part of the female connector part, a sealing part for forming a gas-tight seal between the receiving part and the insertion part, a valve actuating part arranged for operating a valve of the female connector part for opening the valve, and locking means 10 for mutually locking the male and the female connector parts, the locking means comprising resilient locking fingers located outside the insert part, each finger having an inwardly directed projection adapted to engage with a locking surface of the female connector part, and means for moving the locking fingers inwardly. to a locking position and keep your fingers in this locking position so that the engagement between the locking surface and the locking fingers can retract the box part into the recording part and hold the insert part in it.

Opfindelsen vedrører endvidere en hun-konnektordel anbragt på 20 en gasbeholder for sammenkobling med en han-konnektordel, som nævnt oven for, omfattende en optagelsesdel med et hulrum, der er afgrænset af en indre, cylindrisk overflade, en stoppeflade eller skulder for han-konnektordelen, en passage, som i én ende står i forbindelse med hulrummet af optagelses-25 delen, og i den anden ende står i forbindelse med beholderen, en ventil til lukning af passagen, idet ventilen normalt er lukket, men kan åbnes af ventilaktiveringsdelen for at sætte beholderen i forbindelse med ledningen via passagen, idet passagens tværsnit er smallere end optagelsesdelens hulrum, 30 og en ydre låseflade, der er indrettet til at indgribe med låseindretningen, hvor den ydre låseflade er skråtstillet på en sådan måde, at den forløber udad og bort fra den nævnte, ene ende af optagelsesdelen, sådan at bevægelse af låsefingrene indad bevirker, at indstiksdelen trækkes ind i optagel-35 sesdelen.The invention further relates to a female connector part arranged on a gas container for coupling to a male connector part, as mentioned above, comprising a receiving part with a cavity delimited by an inner, cylindrical surface, a stop surface or shoulder for the male connector part , a passage which at one end communicates with the cavity of the receiving part and at the other end communicates with the container, a valve for closing the passage, the valve being normally closed, but can be opened by the valve actuating part to connecting the container to the conduit via the passage, the cross-section of the passage being narrower than the cavity of the receiving part, and an outer locking surface adapted to engage with the locking device, the outer locking surface being inclined in such a way that it extends outwards and away from said one end of the receiving part, such that movement of the locking fingers inwards causes the insertion part to be pulled into the receiving part.

DK 171078 B1 2DK 171078 B1 2

Konventionelle konnektorer af denne type har en første del, der er udformet integreret med et ventilhus, der er tilvejebragt på carbondioxidforsyningsbeholdenden, og har en aksialt forskydelig ventildrivdel, samt en anden del, der omfatter en 5 del af carboniseringspparatet og har en gasledning til modtagelse af gas fra beholderen, en forseglingsdel, der danner en gastætning mellem de to dele samt en stempeldel, der kan aktiveres til frembringelse af bevægelse af ventildrivdelen.Conventional connectors of this type have a first part formed integrally with a valve housing provided on the carbon dioxide supply vessel and have an axially displaceable valve drive part, and a second part comprising a 5 part of the carbonizer and having a gas line for receiving gas from the container, a sealing part which forms a gas seal between the two parts and a piston part which can be activated to produce movement of the valve drive part.

De to dele er normalt forbundet med hinanden via skruegevind.The two parts are usually connected to each other via screw threads.

10 De kendte konnektorer lider at det problem, at ventilens korrekte funktion ikke er sikret. Tætningsfladen på beholderen kan endvidere blive beskadiget under brug, fx, når beholderen tabes, og som følge heraf kan der ikke opnås en korrekt tætning.The known connectors suffer from the problem that the correct function of the valve is not ensured. The sealing surface of the container can also be damaged during use, eg when the container is dropped, and as a result a correct seal cannot be obtained.

15 Formålet med opfindelsen er, at overvinde disse ulemper.The object of the invention is to overcome these disadvantages.

Ifølge et første aspekt af opfindelsen er der tilvejebragt en af to dele bestående konnektor, der har direkte anslagsorganer, som virker i retningen af den relative bevægelse mellem de to konnektorstykker, når disse sættes sammen, så at den 20 indbyrdes stilling af de to dele er præcist afgrænset eller defineret, når delene er låst sammen. Det er fundet, at man på denne måde, specielt når udførelsen er i henhold til en foretrukken udførelsesform for opfindelsen, kan sikre korrekt drift af ventilen.According to a first aspect of the invention, there is provided a two-part connector having direct abutment means which act in the direction of the relative movement between the two connector pieces when assembled so that the relative position of the two parts is precisely delimited or defined when the parts are locked together. It has been found that in this way, especially when the embodiment is according to a preferred embodiment of the invention, one can ensure correct operation of the valve.

25 Ifølge et andet aspekt af opfindelsen er der tilvejebragt en af to dele bestående konnektor med en gasforsegling, hvor mindst én af delene har en indvendig forseglingsoverflade.According to another aspect of the invention, there is provided a two-part connector with a gas seal, at least one of the parts having an inner sealing surface.

Det karakteristiske ved konnektordelene ifølge opfindelsen fremgår af de i kravene angivne, kendetegnende træk. 1The characteristics of the connector parts according to the invention appear from the characterizing features stated in the claims. 1

Opfindelsen vil i det følgende blive nærmere forklaret under henvisning til tegningen, på hvilken fig. 1 skematisk viser et carboniseringsapparat, i hvilket opfindelsen udnyttes, DK 171078 Bl 3 fig. 2 en konnektor i to dele og ifølge en foretrukken udførelsesform for opfindelsen, vist delvis i snit og med delene forbundet til hinanden, fig. 3 den i fig. 2 viste konnektor med de to dele forbundet, 5 men ikke låse til hinanden, fig. 4 delene adskilt, fig. 5 en del af den foretrukne udførelsesform for opfindelsen, vist i snit og mere detaljeret, fig. 6 en detalje ved en del af den foretrukne udførelsesform 10 og fig. 7 en detalje svarende til den i fig. 6 viste, men med delene i en anden stilling.The invention will be explained in more detail below with reference to the drawing, in which fig. 1 schematically shows a carbonization apparatus in which the invention is utilized, DK 171078 B1 FIG. 2 shows a connector in two parts and according to a preferred embodiment of the invention, shown partly in section and with the parts connected to each other, fig. 3 the one in fig. 2 with the two parts connected, 5 but not locking to each other, fig. 4 the parts separated, fig. Fig. 5 shows a part of the preferred embodiment of the invention, shown in section and in more detail; 6 shows a detail of a part of the preferred embodiment 10 and fig. 7 shows a detail similar to that of FIG. 6, but with the parts in a different position.

I fig. l er der vist et carboniseringsapparat til hjemmebrug og indrettet til carbonisering af forholdsvis små mængder 15 vand, fx mængder tilstrækkelige til ét eller to glas og med et carboniseringskammer 100, til hvilket der er forbundet et vandtilførselsorgan 102 for tilførsel af vand, som skal carboniseres, og har en afgivelsesventilkonstruktion 104 til afgivelse af carboniseret vand til en beholder, såsom et glas 20 106. Til kammeret 100 er der forbundet et carbondioxidtilfør selsorgan 108 via en ledning 110 for tilførsel af carbondioxid til kammeret. En koncentrattilførselskonstruktion 112 er forbundet til afgivelseskonstruktionen 104 via én eller flere ledninger 114 for tilførsel af smagsstoffer til det 25 carboniserede vand. Kammeret 100 indeholder en carboni- seringsindretning, der kan være af konventionel form, fx en dyse til injektion af carbondioxid i vandet, eller er fortrinsvis af den type, som findes beskrevet i GB 2.161.089. Vandtilførselskonstruktionen og koncentrattilførselskonstruk-30 tionen kan også være af den type, som findes beskrevet i ovennævnte britiske patentansøgning.In FIG. 1 there is shown a carbonation apparatus for home use and adapted to carbonize relatively small amounts of water, e.g. amounts sufficient for one or two glasses and with a carbonization chamber 100, to which a water supply means 102 for supplying water to be carbonized is connected, and has a dispensing valve assembly 104 for dispensing carbonized water to a container, such as a glass 20 106. To the chamber 100, a carbon dioxide supply means 108 is connected via a conduit 110 for supplying carbon dioxide to the chamber. A concentrate supply structure 112 is connected to the dispensing structure 104 via one or more conduits 114 for supplying flavors to the carbonized water. The chamber 100 contains a carbonization device which may be of conventional shape, for example a nozzle for injecting carbon dioxide into the water, or is preferably of the type described in GB 2,161,089. The water supply structure and the concentrate supply structure may also be of the type described in the above-mentioned British patent application.

I fig. 2-5 er carbondioxidtilførselskonstruktionen 8 vist omfattende en carbondioxidtrykflaske 102, der i sin øverste ende har et ventilhus 4, der indeholder en ventil 5 (se fig.In FIG. 2-5, the carbon dioxide supply structure 8 is shown comprising a carbon dioxide pressure bottle 102 having at its upper end a valve housing 4 containing a valve 5 (see fig.

35 5), der normalt er lukket via en trykfjeder 7 (se fig. 5), men som kan åbnes ved nedtrykning af en aksialt bevægelig DK 171078 B1 4 ventildrivstang 6, der strækker sig gennem en passage 8 i en konnektordel 10, der er fastgjort til ventilhuset 4 via gevind 11 (se fig. 5). Konnektordelen 10 har et cylindrisk optagelseselement 12, der optager et med dette element sam-5 virkende indstikselement 14 af en anden konnektordel 16, der udgør en permanent del af carboniseringsapparatet til hjemmebrug .5), which is normally closed via a compression spring 7 (see Fig. 5), but which can be opened by depressing an axially movable valve drive rod 6 extending through a passage 8 in a connector part 10, which is attached to the valve housing 4 via thread 11 (see Fig. 5). The connector part 10 has a cylindrical receiving element 12, which receives a plug-in element 14 cooperating with this element of a second connector part 16, which forms a permanent part of the carbonization apparatus for home use.

Indstikselementet 14 har en ydre O-ring 18, der er placeret i en rende 20, og som danner en gastætning med en indre cy-10 lindrisk flade 22 af optagelseselementet 12. Når konnektorde-lene 10 og 16 er låst helt sammen, støder en endeflade 24 af indstikselementet 14 mod optagelseselementet 12's bundflade 26. Fladerne 24 og 26 danner således et sikkert anslag.The plug-in element 14 has an outer O-ring 18, which is located in a groove 20 and which forms a gas seal with an inner cylindrical surface 22 of the receiving element 12. When the connector parts 10 and 16 are completely locked together, a end face 24 of the insertion member 14 against the bottom face 26 of the receiving member 12, so that the faces 24 and 26 form a secure stop.

Den anden konnektordel 16 har en gaspassage 28, der inde-15 holder en stempeldel 30. På stempeldelen 30 og i gaspassagen 28 er der tilvejebragt indbyrdes indgribende skuldre henholdsvis 32 og 34 til afgrænsning af den tilbagetrukne stilling for stempeldelen 30, således som det er vist i fig. 2. Passagen 28 står i forbindelse med ledningen 110, således som 20 det er vist skematisk i fig. 2.The second connector part 16 has a gas passage 28 containing a piston part 30. On the piston part 30 and in the gas passage 28 mutually engaging shoulders 32 and 34, respectively, are provided for delimiting the retracted position of the piston part 30, as shown in fig. The passage 28 communicates with the conduit 110, as shown schematically in FIG. 2.

Af den anden konnektordel 16 understøttes der flere låsefingre 36 (fx tre fingre) af eftergivende materiale, fortrinsvis syntetisk plast, ved hjælp af en ring 38, som fingrene er udformet integreret med, og som er monteret i en rende 40 i 25 konnektordelen 16. Ringen 38 kan være delt, så at den kan være lettere at samle med konnektordelen 16. Fingrene 36 er udformet på en sådan måde, at de i deres ikke-spændte tilstand indtager den i fig. 3 og 4 viste stilling. Hver finger har ved sin nederste ende et indefter rettet fremspring 42, 30 der, når de to dele 10 og 16 er låst sammen, således som det er vist i fig. 2, indgriber med en skrå flade 44, der er udformet ved undersiden af ventilhuset 4's låserand 46. På den anden konnektordel 16 er der tilvejebragt en aksialt forskydelig patron 48 til fastholdelse af fingrene 36 i den i 35 fig. 2 viste stilling, i hvilken de to dele er låst sammen.From the second connector part 16, several locking fingers 36 (e.g. three fingers) of resilient material, preferably synthetic plastic, are supported by means of a ring 38, with which the fingers are formed integrally and which is mounted in a groove 40 in the connector part 16. The ring 38 can be divided so that it can be easier to assemble with the connector part 16. The fingers 36 are designed in such a way that in their untensioned state they occupy the one in fig. 3 and 4. Each finger has at its lower end an inwardly directed projection 42, 30 which, when the two parts 10 and 16 are locked together, as shown in fig. 2, engages with an inclined surface 44 formed at the underside of the locking edge 46 of the valve housing 4. On the second connector part 16 an axially displaceable cartridge 48 is provided for holding the fingers 36 in the position shown in fig. 2, in which the two parts are locked together.

DK 171078 B1 5DK 171078 B1 5

Den skrå flade 44 er således udformet, at den søger at trække konnektordelene sammen, når fingrene 36 er bevæget indefter.The inclined surface 44 is designed so that it seeks to pull the connector parts together when the fingers 36 are moved inwards.

Når de to dele er i den i fig. 2 viste låste stilling, og stempeldelen 30 ikke er aktiveret, er en stempeldel 30's 5 endefremspring 50, hvilken stempeldel 30 er indrettet til at indgribe med ventildrivstangen 6, placeret nøjagtigt i en forudbestemt afstand over fladen 26, som følge af indgrebet mellem skuldrene 32 og 34 og indgrebet mellem fladerne 24 og 26, og er derfor nøjagtigt positioneret i forhold til den 10 øverste ende af ventilstangen 6. Når der skal afgives gas fra flasken 2, aktiveres stempeldelen 30 på en sådan måde, at den bevæges nedefter, således som det er vist i fig. 2, til indgreb med stangen 6, så at stangen 6 ligeledes presses nedefter. Dette indgreb frembringes ved hjælp af organer, der 15 er vist skematisk i fig. 3, og som omfatter en solenoide 41, der er forbundet til én ende af en arm 43, hvis anden ende 47 er forbundet til stempeldelen 30, idet armen kan dreje omkring et punkt 45 mellem disse ender. Magnetisering af sole-noiden 41 medfører således åbning af ventilen og tillader, at 20 der kan passere carbondioxidgas opefter gennem passagen 8 og passagen 28, hvilken gas kan benyttes til carbonisering af vand. Da 0-ringen 18 tætner mod optagelseselementet 12's inderflade, er der desuden ikke nogen risiko for beskadigelse af denne indre flade, så at der altid sikres en god tætning. 1 2 3 4 5 6 7 8 9 10 11When the two parts are in the position shown in fig. 2, and the piston part 30 is not activated, the end projection 50 of a piston part 30 is 5, which piston part 30 is arranged to engage with the valve drive rod 6, located exactly at a predetermined distance above the surface 26, due to the engagement between the shoulders 32 and 34 and the engagement between the surfaces 24 and 26, and is therefore accurately positioned relative to the upper end of the valve rod 6. When gas is to be dispensed from the bottle 2, the piston part 30 is activated in such a way that it moves downwards, as it is shown in fig. 2, for engagement with the rod 6, so that the rod 6 is also pressed downwards. This engagement is effected by means of means shown schematically in fig. 3, and comprising a solenoid 41 connected to one end of an arm 43, the other end 47 of which is connected to the piston part 30, the arm being able to rotate about a point 45 between these ends. Magnetization of the solenoid 41 thus causes the valve to open and allows carbon dioxide gas to pass upwards through the passage 8 and the passage 28, which gas can be used for the carbonization of water. Furthermore, since the O-ring 18 seals against the inner surface of the receiving element 12, there is no risk of damaging this inner surface, so that a good seal is always ensured. 1 2 3 4 5 6 7 8 9 10 11

Som vist i fig. 6 er fladen 50, når konnektoren er den i fig.As shown in FIG. 6, the surface 50 is when the connector is that of FIG.

2 2 viste stilling, dvs. stempeldelen 30 er ikke aktiveret, 3 fortrinsvis placeret ca. 2 mm over fladen 26, og stempelstan 4 gen 6 er endvidere placeret på en sådan måde, at oversiden 6a 5 af stempelstangen 6, når ventilen er lukket, rager ca. l mm 6 op over fladen 26, så at der er et mellemrum på ca. 1 mm 7 mellem fladen 6a og fladen 50. Drivindretningen eller stem 8 peldelen 30's arbejdsslag er fortrinsvis tilstrækkeligt til 9 at tvinge stangen 6 nedefter ind i en udsparing 26a i flade 10 26, når den ovennævnte solenoide aktiveres. Dette arbejdsslag 11 kan fx være ca. 3 mm. Afstanden mellem fladen 50 og skulderen 30a på drivdelen 30 kan være ca. 1,5 mm, så at skulderen 30a DK 171078 B1 6 ikke er i kontakt med fladen 26, når ventilen er helt åben. Disse dimensioner har vist sig at være specielt fordelagtige, men det er naturligvis muligt at afvige fra disse dimensioner inden for opfindelsens rammer. Når drivdelen 30 er udformet 5 med de ovenfor beskrevne dimensioner, skal stangen 6's overside 6a imidlertid ikke rage mere end 2 mm op over fladen 26, når ventilen er helt lukket. Den kan tilnærmelsesvis flugte med fladen 26, når ventilen er helt lukket eller kan endog være placeret en anelse under fladen 26, når ventilen er helt 10 lukket. Den præcise positionering af drivdelen 30 i forhold til fladen 26, hvilken positionering opnås i overensstemmelse med opfindelsen, sikrer således til alle tidspunkter en pålidelig aktivering af ventilen 5.2 2 shown position, i.e. the piston part 30 is not activated, 3 preferably located approx. 2 mm above the surface 26, and the piston rod 4 gen 6 is furthermore positioned in such a way that the upper side 6a 5 of the piston rod 6, when the valve is closed, protrudes approx. 1 mm 6 up above the surface 26, so that there is a space of approx. 1 mm 7 between the surface 6a and the surface 50. The drive stroke of the drive device or stem 8 of the pile part 30 is preferably sufficient to force the rod 6 downwards into a recess 26a in surface 10 26 when the above-mentioned solenoid is activated. This working stroke 11 can, for example, be approx. 3 mm. The distance between the surface 50 and the shoulder 30a of the drive part 30 can be approx. 1.5 mm, so that the shoulder 30a DK 171078 B1 6 is not in contact with the surface 26 when the valve is fully open. These dimensions have been found to be particularly advantageous, but it is of course possible to deviate from these dimensions within the scope of the invention. However, when the drive part 30 is formed 5 with the dimensions described above, the upper side 6a of the rod 6 must not protrude more than 2 mm above the surface 26 when the valve is completely closed. It can approximately align with the surface 26 when the valve is completely closed or may even be located slightly below the surface 26 when the valve is completely closed. The precise positioning of the drive part 30 relative to the surface 26, which positioning is achieved in accordance with the invention, thus ensures at all times a reliable activation of the valve 5.

Hvis flasken skal fjernes, forskydes patronen 48 opefter fra 15 den i fig. 2 viste stilling til den i fig. 3 viste stilling. Herved tillades det, at fingrene 36 kan bevæges udefter under påvirkning af deres egen elasticitet eller eftergivenhed til den i fig. 3 viste stilling, hvorefter konnektordelen 10 kan adskilles fra konnektordelen 16 ved, at flasken trækkes 20 nedefter, således som det er vist i fig. 4. Når carbondioxidet i flasken 2 er brugt helt op, kan en ny flaske let installeres.If the bottle is to be removed, the cartridge 48 is displaced upwards from the one in fig. 2 to the position shown in FIG. 3 shown position. This allows the fingers 36 to move outward under the influence of their own elasticity or resilience to that shown in FIG. 3, after which the connector part 10 can be separated from the connector part 16 by pulling the bottle 20 downwards, as shown in fig. 4. When the carbon dioxide in the bottle 2 is completely used up, a new bottle can be easily installed.

Forskellige modifikationer er mulige inden for opfindelsens rammer. O-ringen vil fx kunne monteres i et indvendigt spor i 25 delen 12 i stedet for på ydersiden af indstiksdelen 12. En god forsegling vil fortsat være sikret, da der kun er lille risiko for, at delen 14, der er en del af carboniserings-apparatet, vil blive beskadiget. Det er selve flasken og de dele, der er forbundet med denne, som er mest udsat for 30 beskadigelse, fx som følge af, at flasken utilsigtet tabes.Various modifications are possible within the scope of the invention. For example, the O-ring can be mounted in an inner groove in the part 12 instead of on the outside of the insertion part 12. A good seal will continue to be ensured, as there is only a small risk that the part 14, which is part of the carbonization the appliance will be damaged. It is the bottle itself and the parts connected to it that are most exposed to damage, for example as a result of the bottle being accidentally dropped.

Selv om eftergivende fingre som vist ved 36 på tegningen udgør egnede låseorganer, kan andre låseorganer anvendes. Man kan endvidere anvende andre former for direkte eller positive anslag end fladerne 24, 26 og skuldrene 32, 34 til nøjagtigAlthough resilient fingers as shown at 36 in the drawings constitute suitable locking means, other locking means may be used. It is also possible to use other types of direct or positive stops than the surfaces 24, 26 and the shoulders 32, 34 for accurate

Claims

A male connector part (16) mounted on a compressed air line (110) and arranged for connection to a female connector part (10) according to claim 3, comprising an insert part (14) having a cavity which communicates with the line ( 110), and which is adapted for a slidable insertion into a receiving part (12) of the female connector part (10), a sealing part (18) for forming a gas-tight seal between the receiving part (12) and the insertion part (14), a valve actuating member (30) adapted to operate a valve (5) of the female connector member (10) to open the valve (5), and locking means (36) for interlocking the male and female connector members (16); , 10), the locking means comprising resilient locking fingers (36) located outside the insertion part (14), each finger (36) having an inwardly directed projection (42) adapted to engage with a locking surface (44). ) of the female connector part (10), and means (38) for moving the locking fingers (36) inwards to a locking position, and keep the fingers in this locking position so that the engagement between the locking surface (44) and the locking fingers (36) can pull the insertion part (14) into the receiving part (12) and hold the insertion part (14) in this, DK 171078 B1 8 characterized in that ( a) the end face (24) of the insert part (14) is adapted to abut against a stop surface, abutment surface or shoulder (26) of the receiving part (12) in order to directly and safely determine the position of the insert part (14) relative to the receiving part (12), when the insert part (14) is completely inserted into the receiving part (12), (b) the sealing part is a sealing element (18) arranged on the outside of the insert part (14) and which is arranged to co-operate with a cylindrical surface of the receiving part (12) together with it to form a gas tight seal, and (c) the valve actuating member (30) is axially movable relative to the male connector member (16) to open and close the valve (5) of the female connector member (10). of the container (2).

Male connector part according to claim 1, characterized in that it comprises a stopping device (32, 34) delimiting a retracted position for the actuating part. A female connector part (10) arranged on a gas container (2) for coupling to a male connector part (16) according to claim 1 or 2, comprising a receiving part (12) with a cavity delimited by an inner, cylindrical surface, a stop surface or shoulder (26) for the male connector part (16), a passage (8) which communicates at one end with the cavity of the receiving part (12) and at the other end with the container ( 2), a valve (5) for closing the passage (8), the valve being normally closed, but can be opened by the valve actuating part (30) to connect the container (2) to the conduit (110) via the passage ( 8), the cross section of the passage (8) being narrower than the cavity of the receiving part (12), and an outer locking surface (44) adapted to engage the locking device, the outer locking surface (44) being inclined on such way that it extends outwards and away from said one end of the receiving part (12), such that movement DK 171078 B1 9 of the locking finger e (36) inwards causes the insert part (14) to be pulled into the receiving part (12), characterized in that (a) the inner, cylindrical surface is arranged to co-operate with the sealing element (18) on the insert part (14) for producing a gas-tight seal therewith, (b) the shoulder (26) is disposed in the receiving portion (12) and arranged to cooperate with the end face (24) of the insertion portion (14) to produce a direct or positive stop defining or defines the position of the insert part (14) in the receiving part (12) when the locking fingers (36) are in their locking position, and (c) the valve (5) can be opened and closed by axial movement of the valve actuating part (30) without the connector part (16) is disconnected from the female connector part (10).

Female connector part according to claim 3, characterized in that the abutment surface or shoulder 20 (26) is formed by an end face of the cavity of the receiving part (12).

Female connector part according to claim 3, characterized in that the abutment surface or the shoulder (26) is provided with a radial projection or a rib arranged in the cavity of the receiving part (12).

Female connector part according to claim 3, characterized in that said one end of the passage (8) comprises a recess (26a) in an end face (26) of the receiving part (12). A female connector part according to any one of claims 30 to 6, characterized in that the valve (5) comprises a valve body (6) located in the passage (8).