DK158642B

DK158642B - VALVE PROVIDED CLOSE FOR DELIVERY OF LIQUID FROM A CONTAINER

Info

Publication number: DK158642B
Application number: DK541984A
Authority: DK
Inventors: Roger John Hyde
Original assignee: Alumasc Ltd
Priority date: 1983-11-16
Filing date: 1984-11-14
Publication date: 1990-06-25
Also published as: DK541984D0; DK541984A; ES282615Y; EP0142966B1; EP0142966A1; ATE31910T1; DK158642C; DE3468664D1; IE55713B1; IE842900L; ES282615U

Abstract

A valved closure for a pressure vessel, such as a cask or keg (18), having a neck (22), for rigid attachment as a mounting ring to the mouth (24) of a tap hole (2) in the vessel, and a valve-containing tubular body (10) inserted co-axially in the neck; has a rigid ring (30) engaging the tubular body and the keg neck, the ring being of malleable metal and having an inner periphery (33) shaped to engage the tubular body and a relatively thin outer peripheral skirt (32) shaded to be deformed, by a power tool, into fitting engagement about the neck rim (34), to provide securing means for preventing unauthorised axial removal of the valved closure, the so formed securing collar being accessible by a tool to cut the collar off the neck to release the valved closure: the securing collar may be split into two or more parts (29 and 31) to enable it to be fitted about a large diameter flange (15) at the top of the tubular body.

Description

iin

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Den foreliggende opfindelse angår et ventil forsynet lukke for en trykbeholder, som for eksempel en tønde eller et fad for drikkevarer, der afgives gennem det ventil forsynede lukke ved hjælp af en trykgas, der er tilført til tønden eller fadet gennem lukket.The present invention relates to a valve-provided closure for a pressure vessel, such as, for example, a barrel or dish for beverages delivered through the valve-supplied closure by means of a pressurized gas supplied to the barrel or casing through the closure.

55

Det er et almindeligt arrangement, at der til beholderen er fastsvejst en rørformet halslignende muffe, hvori det ventil forsynede lukke er indført, hvilken muffe og lukke har afpassede gevind eller en forbindelse af bajonettypen. Sådanne arrangementer er almindeligvis tilfreds-10 stillende i praksis, men har en ulempe, idet det er muligt utilsigtet at afskrue lukket eller bringe bajonetforbindelsen ud af indgreb, medens beholderen er tilvejebragt med indre overtryk. Denne farlige mulighed kan for eksempel optræde, når det forsøges at afmontere et dispenserhoved, med hvilket der er skabt forbindelse mellem beholderen og 15 en dispensertap.It is a common arrangement that a tubular neck-like sleeve is welded to the container into which the valve-provided closure is inserted, which sleeve and closure have matched threads or a bayonet type connection. Such arrangements are generally satisfactory in practice, but have a disadvantage in that it is possible to unintentionally unscrew the closure or disengage the bayonet connection while the container is provided with internal overpressure. This dangerous possibility may occur, for example, when attempting to disassemble a dispenser head with which a connection has been established between the container and a dispenser pin.

I et andet arrangement er lukket alene tilbageholdt af en splitring, der er i indgreb i en rille inde i en ringformet fadfitting, og som dækker over skuldre på lukkelegemet. Splitringen er sædvanligvis let 20 tilgængelig og kan let fjernes ved anvendelse af et værktøj, som for eksempel en skruetrækker. Hvis dette udføres, når beholderen er under indre overtryk, vil lukket blive udstødt med stor kraft.In another arrangement, the closure alone is restrained by a split ring which engages a groove inside an annular dish fitting and which covers the shoulders of the closure body. The splitting ring is usually easily accessible and can be easily removed using a tool such as a screwdriver. If this is done when the container is under internal pressure, the closure will be ejected with great force.

Fra EP offentliggørelsesskrift nr. 0.089.727 er det kendt at forsyne 25 sådanne ventillukker med en sikkerhedskrave (idiotsikker), der er svær at fjerne, og som gør uautoriseret fjernelse af ventillukket fra en under tryk sat tank mere usandsynlig. I dette skrift angives dog ikke, at skørtet af den idiotsikre ring er udformet til at blive deformeret ved hjælp af et kraftværktøj, og at den idiotsikre ring er af blødt 30 metal, og at en del deraf, som indgriber med det rørformede legeme, er stiv. Desuden afhænger den kendte idiotsikre ring af skruegevind for at tilbageholde ventilen i tøndehalsen.EP Publication No. 0.089727 discloses 25 such valve closures are provided with a hard-to-remove safety collar (foolproof) that makes unauthorized removal of the valve closure from a pressurized tank more unlikely. However, this document does not state that the skirt of the foolproof ring is designed to be deformed by a power tool and that the foolproof ring is of soft metal and that a portion thereof which engages with the tubular body is stiff. In addition, the known foolproof ring screw thread depends on holding the valve in the barrel neck.

Det er formålet med den foreliggende opfindelse at tilvejebringe en 35 sikkerhedskrave, der er adskilt fra enhver ventil komponent.It is the object of the present invention to provide a safety collar separate from any valve component.

Ifølge den foreliggende opfindelse er der tilvejebragt et ventil forsynet lukke for afgivelse af væske fra en trykbeholder, som for eksempel en tønde eller et fad, der er forsynet med en hals for stiv fastgøre!-According to the present invention, there is provided a valve provided for dispensing liquid from a pressure vessel, such as a barrel or dish provided with a neck for rigid attachment.

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2 se som en monteringsring for mundingen af et taphul i beholderen, et ventil indeholdende rørformet legeme, der er indført koaksi alt i halsen og en stiv idiotsikker ring, hvilket lukke er ejendommeligt ved, at ringen er af blødt metal og har en indre omkreds, der er dannet for at 5 gå i indgreb med det rørformede legeme.samt et relativt tyndt ydre omkredsskørt, der skal deformeres ved hjælp af et kraftværktøj for omdannelse til en sikkerhedskrave med en indadbøjet rand i tætsluttende indgreb omkring randen af en given hals, hvilken sikkerhedskrave er adskilt fra enhver ventil komponent i det rørformede legeme, hvorved 10 forvridning eller fjernelse af sikkerhedskraven fra halsen ved hjælp af et specialværktøj ikke kan påvirke ventilen, der er indeholdt inden i det rørformede legeme, og kun den idiotsikre ring skal erstattes, hver gang ventillukkeenheden fjernes fra trykbeholderen.2 see as a mounting ring for the mouth of a tap hole in the container, a valve containing tubular body inserted coaxially all in the neck and a rigid foolproof ring, which is peculiar in that the ring is of soft metal and has an inner circumference, formed to engage the tubular body, as well as a relatively thin outer circumferential skirt to be deformed by a power tool for conversion into a collar with an inwardly curved edge in tightly engaging about the rim of a given neck, which collar is separated from any valve component of the tubular body, whereby distortion or removal of the safety requirement from the neck by a special tool cannot affect the valve contained within the tubular body and only the foolproof ring must be replaced each time the valve closure unit is removed from the pressure vessel.

15 En hvilken som helst form eller træk ved halsens rand eller omkring halsens yderside vil være tilstrækkelig, forudsat at den tildannede sikkerhedskrave (og således det ventil forsynede lukke) vil blive forhindret i en aksial fjernelse.Any shape or feature of the neck edge or around the outside of the neck will suffice, provided that the formed safety collar (and thus the valve closure) will be prevented in axial removal.

20 I en udførelsesform for lukket ifølge opfindelsen har det rørformede legeme og tøndehalsen afpassede ydre og indre gevind, det rørformede legeme har også en radialt udefterrettet flange i umiddelbar nærhed af toppen deraf, og sikkerhedskravens inderkreds er dannet, for således aksi alt at gå i indgreb med flangen.In one embodiment of the closure according to the invention, the tubular body and the barrel neck have matched outer and inner threads, the tubular body also has a radially outwardly directed flange in the immediate vicinity of the top thereof, and the inner circle of the safety requirements is formed so as to engage everything axially. with the flange.

25 I en anden udførelsesform for lukket ifølge opfindelsen tilvejebringer sikkerhedskraven det eneste organ for aksial tilbageholdelse af det rørformede legeme i tøndehalsen.In another embodiment of the closure according to the invention, the safety collar provides the only means for axially retaining the tubular body in the barrel neck.

30 Sikkerhedskraven ifølge ovennævnte to udførelsesformer består i hvert tilfælde af en stiv krave af blødt metal med et tyndt eller tyndere skørt, der er beregnet til at blive krympet omkring en tøndehals ved hjælp af et passende kraftværktøj og på tilsvarende måde skåret fri ved anvendelse af et specialværktøj. Sådanne kraver er hensigtsmæssigt 35 fremstillet af aluminium.The safety collar of the above two embodiments in each case consists of a rigid soft metal collar with a thin or thinner skirt intended to be shrunk around a barrel neck by a suitable power tool and similarly cut free using a special tools. Such collars are suitably made of aluminum.

Det er formålet med en tredje udførelsesform for lukket ifølge den foreliggende opfindelse at tilvejebringe et ventil forsynet lukke, der er specielt egnet til venti11egemer med dispensermonteringsflanger medIt is the object of a third embodiment of the closure of the present invention to provide a valve provided closure particularly suitable for valve bodies with dispenser mounting flanges having

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3 stor diameter, som for eksempel anvendes i forbindelse med halsforsynede standardbeholdere af rustfrit stål eller isoleret rustfrit stål.3 large diameter, which is used, for example, in connection with standard stainless steel neck or insulated stainless steel containers.

I en tredje udførelsesform for lukket ifølge opfindelsen omfatter sik-5 kerhedskraven to eller flere del-ringe, der hver har en indre omkreds, der er dannet for at gå i indgreb med et låseorgan på eller i det ventil forsynede rørformede legemes yderside og et ydre omkredsskørt, der er dannet for at blive deformeret til nævnte tætsluttende indgreb omkring randen af en given hals. Del-ringene er, hvis de anvendes sammen 10 med halse af rustfrit stål, fremstillet af deformerbart rustfrit stål.In a third embodiment of the closure according to the invention, the security claim comprises two or more sub-rings, each having an inner circumference formed to engage a locking member on or outside the valve-shaped tubular body and an outer circumferential skirt formed to deform to said tightly fitting engagement around the rim of a given neck. The sub-rings, if used together with 10 stainless steel necks, are made of deformable stainless steel.

Ovennævnte og andre træk ved den foreliggende opfindelse er som et eksempel illustreret i tegningen, hvor 15 fig. 1 viser et aksialt snit gennem et ventil forsynet lukke, der er fastgjort i en tøndehals i overensstemmelse med en første udførelsesform for opfindelsen, fig. 2 et tilsvarende snitbillede gennem en anden udførelsesform for lukket ifølge opfindelsen, og 20 fig. 3 et aksialt snitbillede gennem et i en tøndehals fastgjort ventil forsynet lukke, ifølge en tredje udførelsesform for opfindelsen.The above and other features of the present invention are illustrated by way of example in the drawing, in which: FIG. 1 shows an axial section through a valve provided closed in a barrel neck in accordance with a first embodiment of the invention; FIG. 2 shows a similar sectional view through another embodiment of the closure according to the invention, and FIG. 3 shows an axial sectional view through a valve fitted to a barrel neck according to a third embodiment of the invention.

Det ventil forsynede lukke, der er vist i fig. 1, består af et rørfor-25 met ventillegeme 10, der indeholder ventil komponenterne, som generelt er indikeret med henvisningsbetegnelsen 12, og som er af den type, der er monteret i legemet 10 fra dennes indre ende, hvilket legeme indvendigt indbefatter et ventilsæde 14, imod hvilket sæde ventilen er i tætnende anlæg, og som forhindrer ventilens udstødning. Selve ventilen 30 udgør ikke en del af den foreliggende opfindelse og behøver ikke at blive beskrevet yderligere.The valve provided closure shown in FIG. 1, consists of a tubular valve body 10 which contains the valve components generally indicated by the reference numeral 12 and which is of the type mounted in the body 10 from its inner end, the body including a valve seat 14 , against which seat the valve is in sealing system and which prevents the valve exhaust. The valve 30 itself does not form part of the present invention and need not be described further.

Legemet 10 har en lille radialt udefterrettet flange 16 nær toppen, og omkring hvis omkreds et .antal plane sider er tilvejebragt for at gøre 35 det muligt at dreje legemet 10.The body 10 has a small radially outwardly directed flange 16 near the top and about the circumference a plurality of flat sides are provided to enable the body 10 to rotate.

En tønde eller et fad 18 har et taphul 20 og en stort set cylindrisk hals 22, der er fastsvejst til tønden omkring taphullet efterladende hullets munding som en radialt indefterrettet flange 24; en 0-ringsA barrel or barrel 18 has a tap hole 20 and a substantially cylindrical neck 22 welded to the barrel around the tap hole leaving the mouth of the hole as a radially inward flange 24; and 0-rings

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4 tætning 26 er indesluttet mellem flangen 24 og en komplementær skulder 28 på venti 11 egernet 10.4 seal 26 is enclosed between flange 24 and a complementary shoulder 28 on venti 11 squirrel 10.

Venti 11 egernet 10 og halsen 22 har henholdsvis ydre og indre afpassede 5 gevind; venti11 egernet (og de tilknyttede ventil komponenter 12) skrues ind i tøndehalsen ved anvendelse af førnævnte plane sider.Venti 11 squirrel 10 and neck 22 have outer and inner matched 5 threads, respectively; the venti squirrel (and associated valve components 12) are screwed into the barrel neck using the aforementioned flat sides.

En stiv ring 30 er indvendigt udformet for at passe over venti 11 egernet 10 og dets flange 16, og har et ydre nedefterrettet relativt tyndt 10 skørt 32, som er dannet for at dække over en ydre læbe 34 på tøndehalsen 22. Kraven 30 er, selv om den er stiv, fremstillet af et blødt metal, som for eksempel aluminium, således at et passende udformet kraftværktøj kan krympe det relativt tyndere skørt 32 omkring og nedenunder halslæben 43, således som vist i figuren. Ringen 30 vil, sam-15 men med sit skørt 32, således danne en stærk krave, som fastholder venti 11 egernet i tøndehalsen imod aksi al fjernelse og imod drejning.A rigid ring 30 is internally configured to fit over venti 11 the squirrel 10 and its flange 16, and has an outer downwardly relatively thin 10 skirt 32 formed to cover an outer lip 34 of the barrel neck 22. The collar 30 is, although rigid, made of a soft metal, such as aluminum, so that a suitably designed power tool can shrink the relatively thinner skirt 32 around and below the neck lip 43, as shown in the figure. Thus, the ring 30, together with its skirt 32, will form a strong collar which holds the venti 11 squirrel in the barrel neck against axial removal and against rotation.

Ventilen kan kun udtrækkes fra tønden, hvis fastgøringskraven 30 fjernes, og dette kræver anvendelse af et specialværktøj for at skære den 20 krympede krave fri fra tøndehalsen. Denne fastgørelsesmekanisme vil ikke alene beskytte imod utilsigtet fjernelse af ventilen eller tilfældig interferens, men vil også beskytte imod bevidste forsøg på at fjerne ventilen på anden måde end med et passende værktøj.The valve can only be pulled out of the barrel if the fastening collar 30 is removed, and this requires the use of a special tool to cut the shrunk collar free from the barrel neck. This attachment mechanism will not only protect against accidental valve removal or accidental interference, but will also protect against deliberate attempts to remove the valve by any means other than with a suitable tool.

25 Ringkraven 30 er den eneste komponent, der skal erstattes hver gang ventilen fjenes og tønden genfyldes.The ring collar 30 is the only component to be replaced each time the valve is removed and the barrel refilled.

Fig. 2 viser en anden udførelsesform ifølge den foreliggende opfindelse, i dette tilfælde såvel i åben som lukket tilstand, og tilsvarende 30 dele har fået samme henvisningsbetegnelser. I denne udførelsesform har ventillegemet 10 intet udvendigt gevind, og tøndehalsen 22 kan, selv om den er vist plan, være en standardtøndehals med et indvendigt gevind eller en bajonetfatning.FIG. 2 shows another embodiment of the present invention, in this case both open and closed, and corresponding 30 parts have been given the same reference numerals. In this embodiment, the valve body 10 has no external thread, and the barrel neck 22, although shown flat, may be a standard barrel neck with an internal thread or bayonet socket.

35 Den stive ringkrave 30, med et tyndere skørt 32 krympet omkring en udvendig omrullet læbe 34 ved kanten af tøndehalsen, tilvejebringer de eneste organer for lokalisering af ventilen i tønden; venti 11 egernet er aksialt belastet, for således at danne det krævede tryk på halstætningen 36 før ringskørtet 32 krympes omkring tøndehalsens læbe. I denneThe rigid ring collar 30, with a thinner skirt 32 crimped around an externally rolled lip 34 at the edge of the barrel neck, provides the only means for locating the valve in the barrel; The venti 11 squirrel is axially loaded so as to form the required pressure on the neck seal 36 before the ring skirt 32 shrinks around the lip of the barrel neck. In this

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5 udførelsesform har ringkraven 30 en indre aksi al nedhængende flange 36, der er beregnet til at indeslutte ventillegemet 10. Indersiden af ringkraven er også dannet for at modtage et dispenserhoved.In one embodiment, the ring collar 30 has an inner axial pendant flange 36 intended to enclose the valve body 10. The inside of the ring collar is also formed to receive a dispensing head.

5 I begge ovennævnte udførelsesformer vil et specielt udformet venti 11e-geme 10 sammen med en passende ringkrave 30 gøre det muligt at anbringe og fastgøre konventionelle ikke-fastgjorte ventil komponenter, i en hvilken som helst eksisterende tøndehals.In both of the above embodiments, a specially designed valve 11e 10 together with a suitable ring collar 30 will allow conventional and fixed valve components to be fitted and secured in any existing barrel neck.

10 Fig. 3 viser en tredje udførelsesform ifølge opfindelsen, og tilsvarende dele har igen fået samme henvisningsbetegnelse.FIG. 3 shows a third embodiment of the invention, and corresponding parts have again been given the same reference numeral.

Således som vist har venti 11 egernet 10 en radialt udefterrettet flange 15 ved toppen, og fra dennes omkreds nedhænger et kort aksialt skørt 15 17.As shown, the venti 11 squirrel 10 has a radially outwardly directed flange 15 at the top, and from its circumference hangs a short axial skirt 15 17.

For den primært tilsigtede anvendelse af denne udførelsesform er tønden eller fadet 18 af rustfrit stål, ligesom det også er tilfældet med halsen 22; i andre henseender er alt som beskrevet ovenfor.For the primarily intended use of this embodiment, the barrel or barrel 18 is of stainless steel, as is also the case with the neck 22; in other respects everything is as described above.

2020

To separate halv-kraver 29 og 31 af rustfrit stål og med U-tværsnit tilbageholder lukkeventil legemet 10 i beholderen 18; kravens indre skørt 33 er anbragt i en præ-bearbejdet rille 35 i ventillegemet 10's yderside før lukkeventilen indføres i halsen. Derefter er halvkraverne 25 selvlokaliserende inde i og langs halsen og er parate til krympeopera-tionen, som, ved hjælp af et specielt udformet hydraulisk udstyr, krymper kravernes ydre skørter 37 omkring og nedenunder halslæben 34, således som vist i figuren. Halvkraverne 29 og 31 vil, således sammen med deres skørter 33, danne en stærk krave, som fastgør venti 11 egernet 30 i tøndehalsen imod aksi al fjernelse.Two separate stainless steel half-collars 29 and 31, with a U-section, retain the closing valve body 10 in the container 18; the inner skirt 33 of the claim is arranged in a pre-machined groove 35 on the outside of the valve body 10 before the closing valve is inserted into the throat. Thereafter, the half collars 25 are self-locating inside and along the neck and are ready for the shrink operation which, by means of a specially designed hydraulic equipment, shrinks the outer skirts 37 of the collars around and below the neck lip 34, as shown in the figure. The half-collars 29 and 31, together with their skirts 33, will form a strong collar which secures the venti 11 squirrel 30 in the barrel neck against axial removal.

Ventilen kan kun udtrækkes fra tønden, hvis halvkraverne 29 og 31 fjernes, og dette kræver anvendelse af et specialværktøj for at afskære de krympede kraver fra tøndehalsen. Denne fastgørelsesmekanisme vil 35 ikke alene beskytte imod utilsigtet fjenelse af ventilen eller tilfældig interferens, men vil samtidig beskytte imod bevidste forsøg på at fjerne ventilen på anden måde end med et passende værktøj. En afstandsskive 39, som er vist anbragt mellem halvkraverne 29 og 31 og ventil-legemets flange 15, er kun tilvejebragt af monteringshensyn.The valve can only be pulled out of the barrel if the half-collars 29 and 31 are removed, and this requires the use of a special tool to cut the crimped collars from the barrel neck. This fastening mechanism will not only protect against accidental valve removal or accidental interference, but will also protect against deliberate attempts to remove the valve by other means than with a suitable tool. A spacer 39, which is shown disposed between the half-collars 29 and 31 and the flange 15 of the valve body, is provided only for mounting purposes.

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Ringkraverne 29 og 31 er de eneste komponenter, som skal erstattes hver gang ventilen afkrympes, fjernes og genplaceres på tønden.Ring requirements 29 and 31 are the only components to be replaced each time the valve is shrunk, removed and repositioned on the barrel.

En anden fordel ved denne udførelsesform, især når den anvendes sammen 5 med ventiler med store flanger, er, at krympningen er godt "gemt" af det nedhængende skørt, hvilket således reducerer sandsynligheden for misbrug.Another advantage of this embodiment, especially when used in conjunction with large flange valves, is that the shrinkage is well "hidden" by the hanging skirt, thus reducing the likelihood of abuse.

I de foregående to udførelsesformer er venti 11 egernets udformning til -10 vejebragt, således at en enkel ring kan passere over venti 11 egernet og stadig fastgøre venti 11 egernet og tøndehalsen til hinanden, hvorimod det i den tredje udførelsesform er ventillegemets flange 15's diameter som nødvendiggør anvendelse af opsplittede ringkraver. Afhængigt af ventillegemets udformning kan der således anvendes enten aluminium-15 splitringkraver eller en enkelt ringkrave af rustfrit stål.In the previous two embodiments, the venti 11 squirrel configuration is weighted so that a single ring can pass over the venti 11 squirrel and still attach the venti 11 squirrel and barrel to each other, whereas in the third embodiment, the diameter of the valve body flange 15 is required. use of split ring collars. Thus, depending on the design of the valve body, either aluminum split ring collars or a single stainless steel ring collar can be used.

20 25 30 3520 25 30 35

Claims

A valve provided for dispensing fluid from a pressure vessel (18), such as a barrel or dish provided with a 5 neck (22) for rigid attachment as a mounting ring for the mouth of a tap hole (20) in the container, a valve containing tubular body (10) inserted coaxially into the neck and a rigid foolproof ring (30 or 29 and 31), characterized in that the ring (30 or 29 and 31) is of soft metal and has an inner perimeter (36 or 33) formed to engage the tubular body as well as a relatively thin outer perimeter skirt (32 or 37) to be deformed by a power tool for conversion into a collar with an inward bend a rim in a snug fit around the rim (34) of a given neck, which safety collar is separate from any valve component 15 (12) of the tubular body, whereby distortion or removal of the safety collar from the neck by a special tool cannot affect the valve one contained within the tubular body, and only the foolproof ring must be replaced each time the venti unit is removed from the pressure vessel. 20

Valve closure according to claim 1, characterized in that the tubular body (10) has an external thread intended to engage an internal thread in the barrel neck (22), the tubular body also having a radial outwardly flange (16) in the immediate vicinity of the top thereof, and that the inner circumference (33) of the safety claim (30) is formed, so as to axially engage the flange (16).

Wait for the closure according to claim 2, characterized in that the safety collar (30) provides the only means for axially retaining the tubular body (10) in the barrel neck (22).

Valve closure according to claim 3, characterized in that the safety collar (30) has an inner axially suspended flange (36), which is intended to axially retain the tubular body in the barrel neck (22).

Valve closure according to claim 1, characterized in that the safety claim comprises two or more sub-rings (29 and 31), each having an inner circumference which is adapted for action to engage a lock. locking means (35) on or externally provided with the valve-shaped tubular body (10) and an outer circumferential skirt (37) formed to deform to said tight-fitting engagement around the rim 5 (34) of a given neck (22). 10 15 20 25 30 35