DE2930348C2

DE2930348C2 - Valve device

Info

Publication number: DE2930348C2
Application number: DE19792930348
Authority: DE
Inventors: Henning Dr.-Ing. 5860 Iserlohn Altmann
Original assignee: Friedrich Grohe Armaturenfabrik GmbH and Co
Current assignee: Grohe Water Technology AG and Co KG
Priority date: 1979-07-26
Filing date: 1979-07-26
Publication date: 1984-05-30
Also published as: DE2930348A1

Description

Kaltwasserversorgungsleitung verbundene Zuflußleitung 4 geöffnet und die mit der Atmosphäre in Verbindung stehende Abflußleitung 5 abgesperrt hält.Cold water supply line connected inflow line 4 open and the with the atmosphere in connection standing drain line 5 keeps shut off.

Die Steuerventile 6 können dabei im wesentlichen von einem Schiebekolben 12 mit jeweils einem Dichtkegel 13 für die Zuflußleitung 4 und einem Dichtkegel 13 für die Abflußleitung 5 gebildet sein. Die Dichtkegel 13 auf dem Schiebekolben 12 sind so anzuordnen, daß in der Endlage jeweils eine Leitung abgesperrt und eine voll geöffnet wird. Zur Wiedererlangung einer bestimmten Ruheposition, nämlich Absperrung der Abflußleitung 5, wird der Schiebekolben mit Hilfe einer Feder 14 in diese Position gestrammt.The control valves 6 can essentially be controlled by a sliding piston 12, each with a sealing cone 13 for the inflow line 4 and a sealing cone 13 for the outflow line 5. The sealing cones 13 on the piston 12 are to be arranged in such a way that in the end position one line is blocked and one line is fully opened. To regain a certain The slide piston is in the rest position, namely the shut-off of the discharge line 5, with the aid of a spring 14 strolled into this position.

Als Steuerventile 6 können alternativ auch Membranventile 20 (siehe Fig.2) eingesetzt werden. Bei diesen Ventilen wird jeweils die Zuflußleitung 4 an die eine Seite, die Abflußleitung 5 an die andere Seite einer Membran 21 geführt, wobei die Membrane 21 als Ventilglied zu den Einströmöffnungen in dem Ventilgehäuse wirkt.Alternatively, membrane valves 20 (see FIG. 2) can also be used as control valves 6. With these Valves is the inflow line 4 on one side, the outflow line 5 on the other side of a Membrane 21 guided, the membrane 21 as a valve member to the inflow openings in the valve housing works.

Der Wasserdruck der Zuflußleitung 4 wirkt dabei an der unteren Fläche der Membrane 21 und drückt diese gegen die oberhalb der Membrane angeordneten Ei₁I-lauföffnung der Ablaufleitung 5 und versperrt sie. Senkrecht auf der Membran 21 ist in dem Ventilgehäuse ein verschiebbarer Stößel 22 gehaltert, mit dem die Membrane 21 nach unten ausgelenkt werden kann, so daß nunmehr die senkrecht unterhalb der Membrane angeordnete Einströmöffnung der Zuflußleitung 4 versperrt und die Abflußleitung 5 freigegeben wird. Wird die Auslenkung nicht weiier aufrechterhalten, so kehrt das Ventil selbsttätig in die in der Fig. 2 gezeigte Stellung zurück. The water pressure of the inflow line 4 acts on the lower surface of the membrane 21 and presses it against the egg ₁ I-flow opening of the drainage line 5 arranged above the membrane and blocks it. A displaceable plunger 22 is held vertically on the diaphragm 21 in the valve housing, with which the diaphragm 21 can be deflected downwards, so that now the inflow opening of the inflow line 4, which is arranged vertically below the membrane, is blocked and the outflow line 5 is released. If the deflection is not maintained, the valve automatically returns to the position shown in FIG.

In Fig. 1 ist die Mischbatterie in Schließstellung gezeigt. Wird nun das linke Steuerventil 6 betätigt, so wird « die linke Teilkammer 3 über die Abflußleitung 5 druckentlastet und der in der gegenüberliegenden rechten Teilkammer 3 eingeführte Druck der Kaltwasserversorgungsleitung 80 bewirkt ein Verschieben des Kolbens 2 in Richtung der linken Teilkammer 3. so daß der über au die Kolbensta"ge 7 gekoppelte Flachschieber 8 entsprechend bewegt wird. Hie-bei gelangt dann zunächst die Durchtrittsöffnung 81 mit ihrem Steuerquerschnitt in den Bereich der Zuflußöffnung 91, so daß anfangs eine geringe Kaltwassermenge pro Zeiteinheil durch die Ji Austrittsöffnung 11 in der Austrittsscheibe 10 in den Batterieauslpuf gelangt. Wird nun daf Steuerventil 6 in seiner Steuerstellung von Hand gehalten, so wird der Flachschieber 8 durch die Servoeinrichtung an den beiden Ein- und Austrittsscheiben 9 und 10 vorbeigefiihrt. so daß das Mischventil, entsprechend der graphischen Darstellung in F i g. 3, Zapfwasser liefert.
Die graphische Darstellung gemäß F i g. 1 zeig; auf der Abszisse die Venlilhublänge in Millimetern und auf der Ordinate die Temperatur in Grad Celsius und Durch- η flußmenge in Liier pro Minute. Durch entsprechende formung und Anordnung der Durchtrittsöffnungen 81, 82 kann in Abhängigkeit vom Ventilhub zunächst eine proportional bis zu einem Maximuni ansteigende KaItwassermcngc (siehe Kurve Q) ge/apft werden und da- wi nach durch Zuleitung von Warmwasser und entsprechender Drosselung des Kaltwasser¹· eine etwa proportional ansteigende Misehwasserumperatur bei gleichbleibender Wassermenge (siehe Kurve 1'/) er/ielt v.erden. ( ΊIn Fig. 1 the mixer tap is shown in the closed position. If the left control valve 6 is now actuated, the left sub-chamber 3 is depressurized via the drain line 5 and the pressure of the cold water supply line 80 introduced in the opposite right sub-chamber 3 causes the piston 2 to move in the direction of the left sub-chamber 3, so that the over au which Kolbensta "ge 7 coupled flat slide 8 is moved accordingly. Hie-in then passes first, the through opening 81 with its control cross-section in the region of the inflow opening 91 so that initially a small amount of cold water per Zeiteinheil by Ji outlet opening 11 in the outlet plate 10 in If the control valve 6 is now held in its control position by hand, the servo device moves the flat slide 8 past the two inlet and outlet disks 9 and 10 so that the mixing valve, according to the graphic representation in FIG. 3, tap water supplies.
The graphic representation according to FIG. 1 show; the abscissa represents Venlilhublänge in millimeters and the ordinate represents the temperature in degrees Celsius and η throughput flowrate in Liier per minute. By appropriately shaping and arranging the passage openings 81, 82, depending on the valve lift, a cold water flow rate that rises proportionally up to a maximum (see curve Q) can be tapped and then by supplying hot water and a corresponding throttling of the cold water ¹ approximately proportionally increasing mixed water temperature with constant water quantity (see curve 1 ') is achieved. (Ί

Duixn eine He-iatigunir des rechten Steuersen'.ils fi k.inn der Flachschieber 8 in seine SchlicßMeiliini: /1: !"■.iL'kL'eiiihn werden. Ie rucli der I3t'ii:'.muntisiiiiiicr eines Steuerventils 6 kann eine entsprechende Schieberstellung erzielt werden. Werden dagegen beide Steuerventile 6 zugleirh betätigt, so wird keine Ventilbewegung erzeugt. Bei der Ventilbewegung wird eine geringe Kaltwassermenge an die Atmosphäre, z. B. in den Auslauf, abgegeben.Duixn a He-iatigunir des right Steueren'.ils fi k.inn the flat slide 8 in its SchlicßMeiliini: / 1:! "■ .iL'kL'eiiihn be. Ie rucli the I3t'ii: '. Muntisiiiiiicr of a control valve 6 can If, on the other hand, both control valves 6 are actuated at the same time, no valve movement is generated, and when the valve is moved, a small amount of cold water is released into the atmosphere, for example into the outlet.

Aufgrund der relativ großen und gut handhabbaren Stellkräfte kann vorteilhaft der Flachschieber 8 und die Eintritts- und Austrittsscheibe 9, 10 aus oxidkeramischem Material hergestellt sein. Auch kann anstatt des Kolbens 2, mit dem die Kammer 1 unterteilt wird, auch eine Membrane oder dergleichen vorgesehen werdet;.Due to the relatively large and easily manageable actuating forces, the flat slide 8 and the Entry and exit disks 9, 10 can be made of oxide ceramic material. Instead of the Piston 2, with which the chamber 1 is divided, also a membrane or the like is provided ;.

Die vorbeschriebene Ventilausbildung wird als Sicherheitsmischbatterie bezeichnet, da zunächst beim Öffnungsvorgang nur kaltes Wasser ausfließen kann und erst im späteren Öffnungsvorgang warmes Wasser hinzugemischt wird, wobei beim Schließvorgang zunächst das warme Wasser und am Ende des Vorgangs auch das kalte Wasser abgesperrt wird. Die Ventileinrichtung ist jedoch nicht nur für Mischventile verwendbar, sondern kann ebenso z. B. als Zapfventil für Kaltoder Warmwasser ausgebildet sein.The valve design described above is used as a safety mixer because initially only cold water can flow out during the opening process and warm water is only added in the later opening process, initially during the closing process the warm water and at the end of the process also the cold water is shut off. The valve device However, it can not only be used for mixing valves, but can also be used, for. B. as a nozzle for cold or Be trained hot water.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

Patent claims:

1. Valve, in particular a sanitary mixing and / or shut-off valve, with one operated by the pumped medium Servo-actuation device, one chamber divided by a movable wall into two sub-chambers is divided with an inlet and outlet opening for the conveying medium, the movable Wall is connected to the Ventilverschlußteii via a rod, the two sub-chambers with one Main line are each connected to an inflow line and to an outflow line, and the inflow and outflow lines are passed through control valves through which the connected to the main line Inflow line can be opened and at the same time the outflow line can be shut off and vice versa, characterized in that the connection of the inflow lines (4) to the main line (80) upstream of the valve is that the drain line (5) is connected to the atmosphere is that only iwei control valves (6) are arranged and each a partial chamber (3) connecting pair of Inflow and outflow lines (4,5) is guided via one of the control valves (6) that the control valves (6) of Hand can be actuated against the force of a reset device (14) and the unactuated, automatically held position of the control valves (6) which open the inflow line (4) and the outflow line (5) closed is holding position, and that the valve closure part is designed as a slide (8) on which Passage cross-sections in accordance with a desired fluid removal and / or fluid mixing program (81,82) are formed.

2. Valve K. according to claim 1, characterized in that that as a valve slide with passage openings (81,82) for the cold and hot water Flat slide (8) is used, the slidable between stationary held in the valve housing Discs is mounted. wherein the one disc as an inlet disc (9) with inlet openings (91,92) for Cold and hot water and the other disk as an outlet disk (10) with an outlet opening (11) is designed for the flowing mixed, hot or cold water.

3. Valve according to claim 1, characterized in that the control valves (6) as a two-way push-button valve are formed and essentially consist of a sliding piston (12) each with a sealing cone (13) for the inflow line (4) and one for the outflow line (5), the sealing cone (13) are designed on the slide piston (12) so that in the end position a line is shut off and one is fully open and that the slide piston is returned to its rest position with the aid of a spring (14) will.

4. Valve according to claim 1, characterized in that the control valves (6) as diaphragm valves (20) are formed, in which the inflow line (4) through a membrane (21) from the outflow line (5) is separated, the inflow water pressure acting on the lower surface of the membrane (21) and thereby shuts off the drain line with the membrane (21) and that perpendicular to the membrane (21) manually operated plunger (22) to deflect the membrane and thus to open the drainage line (5) and blocking of the inflow line (4) is provided.

The invention relates to a valve, in particular a sanitary mixing and / or shut-off valve, with the im The preamble of claim 1 specified features. From DE-OS 27 56 582 a regulating valve is with a servo-actuating device operated by the conveying medium to regulate the flow rate of a Heat carrier, etc. known. There are four separate auxiliary valves for operating the servo actuator necessary.

Furthermore, from DE-PS 22 56 659 a UmscKaltvorrichtung known on water fittings, in which the manual operation by the assignment of auxiliary pistons is facilitated. The device is designed so that the switching process is triggered by the auxiliary piston. A manually variable valve control variable can l.-.it this facility cannot be achieved.

The invention is based on the object of a mixing and / or shut-off valve with an actuating device operated with the delivery medium, their Manipulated variable can be easily determined by hand.

This object is achieved according to the invention by the in the characterizing part of the claim! specified Features solved.

Further features of the invention are specified in claims 2-4.

An embodiment of the invention is shown schematically in the drawing and is in described in more detail below. It shows

Fig. 1 the individual functional elements of a sanitary Mixer tap;

Fig. La shows a valve inlet disk in longitudinal section and top view;

Fig. Ib a valve outlet disk in longitudinal section and top view;

F i g. 2 shows a further embodiment of a control valve in longitudinal section;

F i g. 3 is a graphic representation to illustrate the mode of operation of the mixer tap.

The mixer tap shown in the drawing has connections to the cold and poor water supply network (not shown in the drawing) provided. The cold water is fed to a bore 91 and the Hot water is fed to a bore 92 of an inlet disk 9 held in the valve housing. Upstream, in front of the inlet disk 9, there are also two inflow lines 4 from the cold water supply line 80 branched off for the actuating device. On the inlet disk 9, a flat slide 8 is correspondingly associated passage openings 81, 82 attached, so that depending on the position of the flat slide 8 different amounts of cold and hot water can pass through. The cold that has passed through and / or hot water is from a conical outlet opening 11 a downstream of the Flat slide 8 adjacent outlet disk 10 collected and from here into the battery outlet (in the drawing not shown).

The flat slide 8 is connected to a piston rod 7 with a piston 2 in a chamber 1. Of the Piston 2 is sealed on its jacket in the wall of chamber 1 and is slidably mounted and subdivided the chamber 1 in two sub-chambers 3. At the end faces of the sub-chambers 3 is the inflow line 4 introduced from the cold water supply line 80 and also a drain line 5 led out. In each pair of lines - inflow line 4 and outflow line 5 - each a control valve 6 is interposed, which in its rest position with the