DK156233B

DK156233B - MIXING VALVE

Info

Publication number: DK156233B
Application number: DK032172AA
Authority: DK
Inventors: Manoogian Alex; Eric Victor Pullen
Original assignee: Masco Corp
Priority date: 1971-04-09
Filing date: 1972-01-21
Publication date: 1989-07-10
Also published as: NL170044B; IL38250A0; DE2216801B2; GB1327877A; DK156233C; NL7117461A; IT950572B; IL38250A; AU3641371A; NL170044C; AU461998B2; CA957241A; FR2144193A5; SE378136B; DE2216801A1

Description

1 DK 156233 B1 DK 156233 B

Opfïndelsen angâr en blandingsventil omfattende et ventilhus med et koldt- og varmtvandsindl0b indmundende i en endevæg i et blandingskammer i ventilhuset, en ventiltallerken med en betjeningsspindel, der rager ud fra og er drejeligt lejret i ventilhuset, hvilken ventiltallerken kan drejes mod nævnte endevæg og har i omkredsretningen adskilte varmt- og koldtvands-passager, der kan ligge ud for henholdsvis varmt- og koldtvandsindl0bene for at tillade vandet at str0mme ind i blandingskammeret, idet stoporganer be-grænser ventilpladernes drejning mellem to grænsestillinger, i den ene af hvilke ventiltallerkenen lukker de to indl0b og ved drejning mod den anden stilling f0rst âbner koldtvandsindl0bet og dernæst varmtvandsindl0bet.The invention relates to a mixing valve comprising a valve housing with a cold and hot water inlet opening into an end wall of a mixing chamber in the valve housing, a valve plate with a control spindle projecting from and rotatably mounted in the valve housing, which valve plate can be rotated against said end wall. the circumferential direction separated hot and cold water passages which may be adjacent to the hot and cold water inlets, respectively, to allow the water to flow into the mixing chamber, stopping means restricting the rotation of the valve plates between two boundary positions, in one of which the valve plate closes the two inlets and when turned to the second position, the cold water inlet first opens and then the hot water inlet.

Sâdanne blandingsventiler âbner ved successiv drejning af ventil-spindelen f0rst for det kolde og derpâ for det varme vand og lukker ende-Such mixing valves open by successively turning the valve spindle first for the cold and then for the hot water and closing the end.

2 DK 156233 B2 DK 156233 B

lig helt eller delvis for det kolde vand,medens der âbnes fuldt for det vanne. Herved undgâr man den risiko for skoldning, der bestâr, nâr der kan âbnes direkte for det varme vand.equal, in whole or in part, to the cold water, while fully open to the water. This avoids the risk of scalding that exists when it can be opened directly for the hot water.

Fra norsk patentskrift nr. 101 376 kendes en sâdan blandingsventil, der bestâr af en specielt udformet overdel, der ved hjælp af et antal skru-er langs en flange ved sin nedre kant fastg0res til en flad plads, der har till0b for varmt og koldt vand, idet der mellem overdelens flange og den flade plade er tilvejebragt en pakning. Inden i huset findes en fjeder, der trykker en ventilplade, der har to i afstand fra omdrejningsaksen lig-gende genneml0bshuller, imod den med indl0b for varmt og koldt vand for-synede flade plade. Ved passende placering af ventilpladens genneml0bshul-ler og et inde i huset i forbindelse med ventilpladens tilvejebragt stop, der begrænser pladens drejeomrâde, sikres en jævn overgang mellem lukket stilling, en gradvis âbning for det kolde vand og en gradvis overgang til udelukkende varmt vand.Norwegian Patent Specification No. 101 376 discloses such a mixing valve, which consists of a specially designed upper part, which is fixed by means of a number of screws along a flange at its lower edge to a flat space which allows for hot and cold water , a gasket being provided between the top flange and the flat plate. Inside the housing is a spring which presses a valve plate which has two through holes located at a distance from the axis of rotation, against the flat plate provided with hot and cold water inlets. By appropriate placement of the valve plate through-holes and a stop provided within the housing, which limits the plate's area of rotation, a smooth transition between closed position, a gradual opening for the cold water and a gradual transition to exclusively hot water is ensured.

Det er opfindelsens formâl at tilvejebringe en ventil af den nævnte art, der udmærker sig overfor de kendte ventiler ved at være enkel og kompakt i sin udformning, og som endvidere g0r det muligt efter ventilens montering at indstille dennes stop sâledes, at det sikrer, at der ikke kan âbnes sâ meget for tilblandingen af varmt vand, at der bestâr risiko for skoldning.It is an object of the invention to provide a valve of the kind which distinguishes itself against the known valves by being simple and compact in its design, and which further allows, after mounting the valve, to adjust its stop to ensure that there cannot be opened so much to the admixture of hot water that there is a risk of scalding.

Dette opnâs ved en ventil af den i indledningen nævnte art, der if 01-ge opfindelsen er ejendommelig ved, at ventilhuset er dannet af en boring i hvis indre endevæg koldt- og varmtvandsindl0bene udmunder, og som ved sin ydre ende er lukket med et i boringen anbragt dæksel til afgrænsning af et blandingskammer mellem dækslet og den nævnte indre endevæg, at van-tilspindelen er lejret i dækslet og at samvirkende stoppeorganer er tilvejebragt pâ spindelen og dækslet.This is achieved by a valve of the kind mentioned in the preamble, which according to the invention is characterized in that the valve housing is formed by a bore in the inner end wall of the cold and hot water inlets, which at its outer end is closed with a the bore disposed cover for defining a mixing chamber between the cover and said inner end wall, that the van spindle is housed in the cover and that cooperating stop means are provided on the spindle and cover.

En kompakt opbygning, hvor aile r0rforbindelser udgâr fra husets endevæg opnâs if0lge opfindelsen ved at ventilhuset har et udl0b, som udmunder i den nævnte endevæg for boringen, og at ventiltallerkenen har dele af sin omkreds med mindre diameter end boringens for at skabe forbindelse mellem blandingskammeret og udl0bet i aile ventiltallerkenens stillinger.According to the invention, a compact structure in which all pipe connections are made from the end wall of the housing is obtained by the valve housing having an outlet which opens into the said end wall for the bore and that the valve plate has parts of its circumference of smaller diameter than that of the bore to connect the mixing chamber and the outlet in all positions of the valve plate.

Stoporganerne kan if0lge opfindelsen omfatte i omkredsretningen ad-skilte fremspring eller.knaster pâ dækslet og et stop som er drejeligt med spindelen til anlæg mod fremspringene. Det drejelige stop kan if0lge opfindelsen hâve et par radiait udragende arme til anlæg mod fremspringene pâ dækslet.According to the invention, the stop means may comprise spaced projections or lugs in the circumferential direction and a stop rotatable with the spindle for abutting the projections. According to the invention, the rotatable stop may have a pair of radially extending arms for abutment against the projections on the cover.

3 DK 156233B3 DK 156233B

Til tilvejebringelse af en mulighed for justering af den maksimale tilblanding af varmt vand efter den til enhver tid herskende temperatur af det varme vand kan armene ifÿlge opfindelsen hâve et justeringsorgan til anlæg mod det fremspring, soin bestemmer ventiltallerkenens stilling for helt varmt vand.In order to provide an opportunity for adjusting the maximum admixture of hot water to the prevailing temperature of the hot water at any given time, the arms of the invention may have an adjusting means for abutting the projection thus determining the position of the valve plate for hot water.

Ifÿlge opfindelsen kan varmt- og koldtvandsudlÿbene være placeret diametralt i forhold til hinanden i boringens indre væg. Denne symmetriske placering af indl0bene g0r, at det enkelte indl0b valgfrit kan anvendes som varmt- eller koldtvandsindl0b, blot der ved ventilpladens placering tages hensyn til det trufne valg.According to the invention, the hot and cold water outlets can be located diametrically relative to each other in the inner wall of the bore. This symmetrical placement of the inlets allows the individual inlet to be optionally used as hot or cold water inlets, taking into account the choice made at the valve plate location.

Placeringen af ventilpladen er bestemt af placeringen af dækslet og de pâ dette tilvejebragte stoporganer. Placeringen af dækslet er bestemt ved at dette og ventilhuset if0lge opfindelsen har samvirkende or-ganer til montering af dækslet i ventilboringen i en valgt stilling i forhold til hinanden. Den omtalte hensyntagen til valget af koldt- og varmt-vandsindlÿb, der indebærer en 180° drejning af ventilpladens placering, er der taget h0jde for ved, at de samvirkende organer tillader valgfri monte-ring af dækslet i en af de to diametralt modsatte stillinger i ventilboringen. If0lge opfindelsen kan de samvirkende organer sâledes tillade montering af dækslet i en af to stillinger i forhold til indl0bene pâ en sâdan mâde, at ventiltallerkenens bevægelse bort fra sin lukkede stilling f0rst âbner et udvalgt indl0b af de nævnte indl0b.The location of the valve plate is determined by the location of the cover and the stop means provided thereon. The location of the cover is determined by this and the valve housing according to the invention having cooperative means for mounting the cover in the valve bore in a selected position relative to each other. The said consideration for the choice of cold and hot water inlets, which involves a 180 ° rotation of the valve plate location, is taken into account by the fact that the cooperating members allow optional mounting of the cover in one of the two diametrically opposite positions in the valve bore. According to the invention, the cooperating means can thus permit mounting of the cover in one of two positions relative to the inlets in such a way that the movement of the valve plate away from its closed position first opens a selected inlet of said inlets.

Opfindelsen forklares i det f0lgende nærmere under henvisning til tegningen, pâ hvilken fig. 1 viser et aksialsnit efter linien 1-1 i fig. 2 gennem et hus, en spindel, et dæksel og en omljziber til en blandingsventil if01ge opfindelsen, fig. IA et sidebillede af ventilen, som den almindeligvis er anbragt ved anvendelse, fig. 2 et billede som markeret ved linien 2-2 i fig. 1, hvoraf fremgâr den indbyrdes stilling af et bevægelsesbegrænsende styreelement og en fast stoppe-knast pâ ventildækslet, eksempelvis nâr styreelemen.tet er indstillet til maksimum af varmt vand, fig. 3 et delbillede i snit mage til fig. 1 af ventildækslet, der bedre illustrerer et knastorgan, ved hjælp af hvilket dækslets valgfri, 180° vendbare placering i ventilhuset er muliggjort, fig. 4 et snit efter linien 4-4 i fig. 1 af den drejelige ventilspindel med ventiltallerkenen i lukket stilling i forhold til indljzSbsâbningen til ventilen,The invention will now be explained in more detail with reference to the drawing, in which: FIG. 1 shows an axial section along line 1-1 of FIG. 2 through a housing, a spindle, a cover and an encoder for a mixing valve according to the invention, fig. 1A is a side view of the valve, as it is generally arranged in use; FIG. 2 is a view as indicated by line 2-2 in FIG. 1, which shows the mutual position of a movement limiting control element and a fixed stop cam on the valve cover, for example when the control element is set to maximum hot water; 3 is a sectional view similar to FIG. 1 of the valve cover, which better illustrates a cam member, by means of which the optional 180 ° reversible position of the cover in the valve housing is made possible; FIG. 4 is a sectional view taken along line 4-4 of FIG. 1 of the swivel valve stem with the valve plate in the closed position relative to the inlet opening of the valve,

4 DK 156233 B4 DK 156233 B

fig. 5 et suit efter linien 5-5 i fig. 1, der angiver placeringen af ind-og udl0b i ventilhuset omfattende varmt- og koldtvandsindl0bene til ventilen og blandingskammeret samt udljtfbet, som f0rer til en bruser eller vandhane, og fig. 6 et delbillede af ventiludl0bet med visse dele fjernet og i snit efter linien 6-6 i fig. 5.FIG. 5 is a view taken along line 5-5 of FIG. 1, showing the location of inlets and outlets in the valve housing comprising the hot and cold water inlets of the valve and mixing chamber and the outlet flow leading to a shower or faucet; and FIG. 6 is a partial view of the valve outlet with certain parts removed and sectioned along line 6-6 of FIG. 5th

Som vist i fig. 1 omfatter en ventil if01ge opfindelsen, generelt betegnet 10, et fast, indvendigt bearbejdet og udvendigt gevindskâret messinghus 11 af hovedsagelig lukket, generelt cylindrisk omrids. Den ene ende af huset, som er af· grænset af en cylindrisk væg 12, danner et blandingskammer 13 med betydelig aksial dybde, hvilken vaeg er en forlaengelse af og ud i et med bunden 14, som har âbninger til indtag af varmt og koldt vand og afgang af vand med blandingstempera· tur pâ en mâde, som skal beskrives nærmere i det f^lgende.As shown in FIG. 1, a valve according to the invention, generally designated 10, comprises a fixed, internally machined and externally threaded brass housing 11 of generally closed generally cylindrical outline. One end of the housing, which is bounded by a cylindrical wall 12, forms a mixing chamber 13 of considerable axial depth, which wall is an extension of and into one with the base 14, which has openings for intake of hot and cold water. and outlet of water with mixing temperature in a manner to be described in more detail below.

En drejelig ventilspindelenhed 15 er optaget koaksialt i kammeret. Denne enhed omfatter et aflangt, centrait indstillingsskaft 16, som er fastgjort til et nav 17 pâ en tallerkenlignende ventildel 18. Ventiltallerkenen 18 er for-trinsvis af plast og st0bt pâ ventilspindelen 16.A pivot valve spindle assembly 15 is coaxially accommodated in the chamber. This unit comprises an oblong, center adjusting shaft 16 which is secured to a hub 17 on a plate-like valve member 18. The valve plate 18 is preferably plastic and molded on the valve stem 16.

Et fast, hovedsagelig cylindrisk, st0bt dæksel 19, fortrinsvis ogsâ af plast, er med et cylindrisk navhul 19* skudt ned over en cylindrisk del af spin-delen 16, som sâledes er drejeligt styret i hullet 19'. En b^sninglignende, cylindrisk metalomljzSber 20, som er skruet pâ husets væg 12, spænder en ribbe 20’ pâ omkredsen af dækslet 19 imod ventilhuset 11rs endeflade, medens ventiltallerkenen 18 frit kan dreje sig over ventilhusbunden 14’s flade med âbnin geme.A solid, generally cylindrical, molded cover 19, preferably also of plastic, is shot down with a cylindrical hub hole 19 * over a cylindrical portion of the spin portion 16, which is thus pivotally guided in the hole 19 '. A bush-like, cylindrical metal envelope 20, screwed onto the wall 12 of the housing, spans a rib 20 'on the circumference of the cover 19 against the end surface of the valve housing 11, while the valve plate 18 can freely rotate across the surface of the valve housing bottom 14 with an open joint.

Som vist i fig. 1 og 5 har denne bund akseparallelle boringer, der danner henholdsvis koldtvands- og varmtvandsind10b 21 og 22, som ligger lige langt fra o pâ hver sin side af ventilen 10*s akse. Disse indl0b er indrettet til at hâve væsketæt forbindelse, som det fremgâr af fig. IA, med henholdsvis et koldtvandstil f0rselsr0r 23 og et varmtvandstilf0rselsr0r 24, hvilke r0r for deres del har forbindelse ved en standardsamling 25 med koldt- og varmtvandssystemet i bygnin-gen i overensstemmelse med almindelig praksis.As shown in FIG. 1 and 5, this bottom has axis parallel bores which form, respectively, cold water and hot water inlets 21 and 22, which lie just far from o on either side of the axis 10 * of the valve. These inlets are arranged to have a fluid tight connection as shown in FIG. IA, with a cold water supply pipe 23 and a hot water supply pipe 24 respectively, which for their part are connected by a standard assembly 25 with the cold and hot water system in the building in accordance with standard practice.

Ventilindl0bene 21 og 22 har aksial forbindelse med ventilsæderum, som indeholder fjederpâvirkede gummiventilsæder 27, der tætnende r0rer endefladen af ventiltallerkenen 18. Som det ses i fig. 5 og 6, har bunden 14 ogsâ en enkelt udl0bskanal 28 for blandet vand placeret i et plan, der ligger midtvejs mellem indljzîbene 21 og 22 og vinkelret pâ en linie gennem disse indl0bs akser. Som det ses i fig. 6, strækker fordybninger 29 og 30 sig kun delvis ind i bunden 14 og forbinder i fællesskab ventilblandingskammeret 13 og udl^bskanalen 28. Str0mmen af koldt og varmt vand fra de respektive koldt- og varmtvandsr0r 23 og 24 samtThe valve inlets 21 and 22 have axial connection with valve seat compartments containing spring-actuated rubber valve seats 27 sealingly touching the end surface of the valve plate 18. As seen in FIG. 5 and 6, the bottom 14 also has a single mixed water outlet channel 28 located in a plane located midway between the inlets 21 and 22 and perpendicular to a line through the axes of these inlets. As seen in FIG. 6, recesses 29 and 30 extend only partially into the bottom 14 jointly connecting the valve mixing chamber 13 and the outlet duct 28. The flow of cold and hot water from the respective cold and hot water pipes 23 and 24 as well as

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ventilindl^b 21 og 22 til udljzibet 28 for blandingsvand styres af ventiltallerke-nen 18 pâ spindelenheden 16. Soin vist i fig. IA forbinder et tredje kobberrjtfr 31 udl0bet 28 med en passende ledning 1 samlingen 25 til en tempereret vand-strjzim til bruseren eller hanen.valve inlets 21 and 22 to the mixing water outlet 28 are controlled by the valve plate 18 on the spindle unit 16. The arrangement shown in FIG. 1A, a third copper rectifier 31 connects the outlet 28 with a suitable conduit 1 the connector 25 to a tempered water stream to the shower or tap.

Som det fremgâr af fig. 4 i forbindelse med fig. 1, har ventiltallerkenen 18 tre radiait udadragende knaster 32 til lokalisering af tallerkenen i forhold til ventilhusets væg 12, og den er yderligere fotsynet med en buet gennemgang 33 med et betydeligt areal og beregnet til at skabe forbindelse for det kolde vand fra koldtvandsindljzibet 21 til blandingskammeret 13. En anden âbning eller gennemgang 34 i delen 18 med et noget mindre areal og aftagende i bredde fjzirer varmtvand s s t rjzimmen til kammeret 13 fra indl0bet 22. Vandet s tr jzSmmer fra kamme-ret 13 ned over ventiltallerkenen 18*s kanter mellem knasterne 32 til udljzibet 28.As can be seen from FIG. 4 in connection with FIG. 1, the valve plate 18 has three radially extending projections 32 for locating the plate relative to the wall of the valve housing 12, and it is further sighted with a curved passage 33 of considerable area and intended to connect the cold water from the cold water inlet 21 to the mixing chamber. 13. Another opening or passage 34 in the portion 18 with a somewhat smaller area and decreasing in width, hot water springs the chamber to chamber 13 from the inlet 22. The water flows from chamber 13 down over the valve plate 18 * edges between the lugs 32 to the outlet 28.

Samlestykket 25 er stjzîbt med en flange 36 for montering pâ en egnet væg eller anden understjzitning, som ijzivrigt ikke er vist. Samlestykkets krop har en 0verste stuts, hvortil et rjzir 37, der fjzirer til bruseren, har en væsketæt forbindelse, og en nedre stuts, hvortil et r0r 38, som fjzirer til vandhanen, er forbundet pâ samme mâde. Disse r0r f0des naturligvis fra vandudljzibsrjziret 31, og et forskru-ningsr^r 39 er vist forbundet til rjziret 38 til optagelse af en konventionel, ikke vist omstiller, med hvilken væskestr0mmen kan skiftes fra hane til bruser eller omvendt. St sideindljzib 40 pâ samlestykket 25 er tilsluttet systemets varmtvandstilfjzSrselsledning og forbinder denne med ventilrjziret 24, og et modsat sideindljzib giver pâ samme mâde forbindelse mellem ventilrjziret 23 og koldtvands-tilf0rselsledningen.The connector 25 is molded with a flange 36 for mounting on a suitable wall or other support, which is not shown otherwise. The body of the connector has an upper plug to which a jet 37, which springs to the shower, has a fluid tight connection, and a lower plug to which a tube 38 which feeds to the faucet is connected in the same manner. These tubes are, of course, fed from the water release tube 31, and a screw tube 39 is shown connected to the tube 38 to receive a conventional, not shown, switch with which the fluid stream can be changed from cock to shower or vice versa. St side inlet 40 on manifold 25 is connected to the system's hot water supply line and connects it to valve 24, and an opposite side inlet similarly provides connection between valve 23 and the cold water supply line.

Det i fig. 1, 2 og 3 viste ikke-metalliske dæksel 19 har nær sin indre ende en ringformet not, som optager en 0-ring 42, der sammen med den indre cylindriske flade af ventilhusets væg 12 danner en væsketæt pakning pâ dette sted. Dækslet 19 har ogsâ en ringformet, indre fordybning 43, der forjziger kapaciteten af huset 11's blandingskammer 13. Den ydre kant 44 af omljziberen 20 er bjzijet radiait indad og griber ind over dækslet 19*s ydre flade, og omljziberen 20 er indstilleligt samlet med ventilhuset 11 ved hjælp af en gevindforbindelse 45, hvorved dækslet og spindelenheden 15 holdes pâ plads i huset 11 med et passende aksialt tryk pâ navet 17 ved hjælp af et indre, ringformet nav 46 pâ dækslet.The FIG. 1, 2 and 3, the non-metallic cover 19 shown near its inner end has an annular groove which receives an 0-ring 42 which together with the inner cylindrical surface of the valve housing wall 12 forms a liquid-tight seal at this location. The cover 19 also has an annular inner recess 43 which projects the capacity of the mixing chamber 13 of the housing 11. The outer edge 44 of the enclosure fiber 20 is radially inward and engages over the outer surface of the cover 19 * and the enclosure fiber 20 is adjustably assembled with the valve body. 11 by means of a threaded connection 45, whereby the cover and the spindle unit 15 are held in place in the housing 11 with a suitable axial pressure on the hub 17 by means of an inner, annular hub 46 on the cover.

Som det fremgâr af fig. 2 sammen med snittene i fig. 1 og 3, har dækslet 19 et aksialt udragende stoppefremspring eller en stoppeknast 47 til at virke sammen med et begrænsningsorgan 48. Dette organ er sat ned over skaftet 16 og har et D-formet hul 49 med den flade side af dette hul i anlæg mod den længste af to plane flader 50 og 50’ pâ spindelen 16. Denne flade lâser begrænsningsor-As can be seen from FIG. 2 together with the sections of FIG. 1 and 3, the cover 19 has an axially protruding stop projection or a stop cushion 47 to cooperate with a limiting member 48. This member is set down over the shaft 16 and has a D-shaped hole 49 with the flat side of this hole abutting the longest of two planar faces 50 and 50 'on the spindle 16. This face locks the restriction means.

6 DK 156233 B6 DK 156233 B

ganet 48 til drejning med ventilspindelen ved manuel betjening af et ikke vist hândgreb, som er skruet fast pâ enden af spindelen 16 og ligger an mod fladen 50’. Som senere skal beskrives., er der truffet forholdsregler til at sikre, at begræns-ningsorganet 48 kun kan anbringes i en enkelt vinkel- og aksialorientering pâ skaftet 16.means 48 for turning with the valve spindle by manually operating a handgrip not shown, which is screwed to the end of the spindle 16 and abuts the surface 50 '. As will be described later, precautions have been taken to ensure that the limiting member 48 can only be placed in a single angular and axial orientation on the shaft 16.

Organet 48 begrænser5 f^lgelig vinkeldrejningen af ventilspindelen 16 mellem lukkestillingen og stillingen for maksimalt varmtvandsudljrfb ved sit indgreb med stoppeknasten 47, der er ud i et med dækslet 19. Stoppet 47 bestemmes i omkreds af en indvendig, buet flade 53 med en forudbestemt krumningsradius, en dermed koncentrisk udvendig flade 54 og modsatliggende, vinkelmæssigt udad diver-gerende sideflader 55 og 56 i forudbestemt afstand fra hinanden og i forudbestemt placering i forhold til ventiltallerkenen 18*s koldt- og varmtvandsindl0b 33 og 34.The member 48 accordingly restricts the angular rotation of the valve spindle 16 between the closing position and the maximum hot water discharge position by its engagement with the stop cam 47 extending into the cover 19. The stop 47 is circumferentially determined by an internal, curved surface 53 having a predetermined radius of curvature. a concentric exterior surface 54 and opposite, angularly outwardly diverging side faces 55 and 56 at predetermined distance from each other and in predetermined location relative to valve plate 18 * s cold and hot water inlets 33 and 34.

Begrænsningsorganet 48 er udformet i et stykke med en radiait udragende stoppearm 57 og i forudbestemt vinkelafstand til denne en anden radial stoppe-arm 58, som har et gevindhul med en stilleskrue 59, som tilvejebringer et ind-stilleligt stop, og som kan gâ imod sidefladen 55 pâ dækslets knast 47, som vist i fig. 2. Dette giver mulighed for en indstilling af ventiltallerkenen 18 til en 0nsket maksimal âbning af dennes varmtvandsindgang 34 til ventilhusdelen I4r s varmtvandsindljzib 22. Amen 57, som er i direkte ber^ring med f laden 56 i den modsatte retning, bestemmer ventilens lukkede stilling.The restriction member 48 is integrally formed with a radially extending stop arm 57 and at a predetermined angular distance thereto another radial stop arm 58, which has a threaded hole with a adjusting screw 59, which provides an adjustable stop and which can go against the side surface 55 on the cam cam 47, as shown in FIG. 2. This allows the valve plate 18 to be adjusted to a desired maximum opening of its hot water inlet 34 to the valve body part I4r's hot water inlet 22. Amen 57, which is in direct contact with the tray 56 in the opposite direction, determines the closed position of the valve. .

litige opfindelsen har yderligere det ene buede, ydre fladesegment af organet 48 ved 61 en radius, som blot er en ubetydelighed mindre end krumnings-radien af den indre buede flade 53 pâ dækslets knast 47. Dette segment strækker sig, som det ses i fig. 2, i urviserretningen fra amen 58 til amen 57 og tilla-der en drejning af organet 48 pâ mere end 90° frem og tilbage. Derimod har den resterende buedel 62 pâ organet 48 en stjzSrre radius end bâde buedelen 61 og den indre buede flade 53 pâ dækslets knast 47. Derfor kan organet 48 ikke sættes ned over det affladede ventilspindelskaft 16 i en anden vinkel- og aksialorientering end den rigtige5vist i fig. 2, idet armene 57 og 58 i sâ fald ikke kunne komme ned i h0jde med dækselfladerne 55 og 56.According to the present invention, the one curved outer surface segment of the member 48 at 61 has a radius which is only slightly less than the radius of curvature of the inner curved surface 53 of the cam cam 47. This segment extends, as seen in FIG. 2, in the clockwise direction from the amen 58 to the amen 57 and permits the rotation of the member 48 by more than 90 ° back and forth. By contrast, the remaining arch portion 62 of the member 48 has a larger radius than both the arch portion 61 and the inner curved surface 53 of the cam cam 47. Therefore, the member 48 cannot be lowered over the flattened valve stem shaft 16 in a different angular and axial orientation than the correct one. FIG. 2, in that case the arms 57 and 58 could not fall to the height of the cover surfaces 55 and 56.

Som det ogsâ fremgâr af fig. 1 og 2, er en ringfomet ribbe 64 st0bt ud i êt med dækslet 19 pâ enden af dette. Denne ribbe 64 er ud i et med, men har mindre h$jde end knasten 47, og en tætnende 0-ring 65 omgiver spindelskaftet 16 inden for ribben 64. 0-ringen er anbragt under sammentrykning fra et indre bryst 66 pâ begrænsningsorganet 48.As can also be seen from FIG. 1 and 2, an annular rib 64 is cast into one with the cover 19 at the end thereof. This rib 64 is integral but has a smaller height than the cam 47, and a sealing 0-ring 65 surrounds the spindle shaft 16 within the rib 64. The 0-ring is positioned under compression from an inner chest 66 on the limiting member 48.

Claims

A mixing valve comprising a valve housing (11) with a cold and hot water inlet (21 and 22) opening into an end wall (14) of a mixing chamber (13) in the valve housing, a valve plate (18) with an operating pin portion ( 16) projecting from and rotatably mounted in the valve housing (11), the valve plate (18) being rotatable to said end wall (14) and having circumferentially spaced hot and cold water passages (34 and 33) which may be adjacent to the hot and cold water inlets (22 and 21, respectively) to allow the water to flow into the mixing chamber (13), with stop means (47, 57, 58) restricting the rotation of the valve plates (18) between two boundary positions, one of which the valve plate (18) closes the two inlets (22 and 21) and when turned to the second position first opens cold water V, »

Valve according to claim 1, characterized in that the valve housing (11) has an outlet (28) which opens into said end wall (14) for the bore and that the valve plate (18) has parts of its circumference of smaller diameter than that of the bore. to connect the mixing chamber (13) to the outlet (28) in all positions of the valve plate (18).

Valve according to claim 1, characterized in that the stop means comprise in the circumferential direction separate projections (55, 56) or knobs on the cover (19) and a stop (48) rotatable together with the spindle (16) to abutment against the projections (55, 56).

Valve according to claim 3, characterized in that the swivel stop (48) has a pair of radially extending arms (57, 58) for abutment against the projections (55, 56} on the cover.

Valve according to claim 4, characterized in that the arms (58) have an adjusting means (59) for abutment against the projection (55) which determines the position of the valve plate (18) for hot water, thereby enabling adjustment of the this position with full waters.

Valve according to claim 1, characterized in that said second position of the valve plate (18) is the position for hot water and that the stop means (47, 57, 58) include a manually adjustable member (59) for adjusting it fully. warm position.

Mixing valve according to any one of the preceding claims, characterized in that the hot and cold water inlets (22 and 21) are located diametrically relative to one another in the inner wall (14) of the bore.

7 DK 156233 B Serai as shown in fig. 2, 3 and 5 in connection with FIGS. 1, the cover 19 is formed at its outer edge with a pair of diametrically opposed radially projecting location knobs 68 and 69 which are accommodated in corresponding grooves or recesses 70 in the annular wall 12 of the valve housing 11 axially outside the housing thread 45. In FIG. 4, the valve plate 18 is shown in its closed position relative to the inlet openings 21 and 22 with the rubber gaskets 27 in sealing abutment against the valve plate 18. When the valve stem is turned clockwise, the opening 33 of the valve plate is first brought out of the cold water inlet 21. forward edge of the hot water opening 34 in the valve plate 18 off the hot water inlet 22, and the valve then continues to move through the mixing area until the cold water inlet 21 is finally closed and the wide portion of the opening 34 is in front of the inlet 22, which is valve position for full water. This position can be adjusted by means of the set screw 59. This setting row silk from closed to cold and then through the mixing range to full heat is of course conventional. However, it can be seen from FIG. 4, that if a valve were to be installed on the opposite side of the wall containing the inlet pipes, without additional radiator to compensate for the rotation of the total valve, the inlet 21 of the valve housing would be connected to the water flow pipe. In such installations, with the valve according to the invention, it is only necessary to turn the cover 19 180 °, which is made possible by the diametrically opposed lugs 68 and 69 and the recesses 70 in the valve housing. This causes the valve plate '18 to rotate 180 relative to the inlet legs 21 and 22 and ensures that the intended setting range of this valve's open movement will also be clockwise.

Valve according to claim 7, characterized in that the cover (19) and the valve housing (11) have cooperating means (68, 69, 70) for mounting the cover (19) in the valve bore in a selected position relative to the inlet legs ( 21 and 22).

8 DK 156233 B the inlet (21) and then the hot water inlet (22), characterized in that the valve housing (11) is formed by a bore in the inner end wall (14) of the cold and hot water inlets (21 and 22) which opens at its outer end is closed with a cover (19) disposed in the bore for defining a mixing chamber (13) between the cover (19) and said inner end wall (14), that the valve stem (16) is mounted in the cover (19) and that cooperating stop means (47, 57, 58) are provided on the spindle (16) and cover (19).

Valve according to claim 8, characterized in that the cooperating means (68, 69, 70) allow optional mounting of the cover (19) of one of the two diametrically opposite positions in the valve bore.

9 DK 156233 B

Valve according to claim 8, characterized in that the cooperating means allow the cover (19) to be mounted in one of two positions relative to the inlets (21 and 22) in such a way that the movement of the valve plate (18) away from its closed position first opens a selected inlet 10b of said inlet (21 and 22).