SANITARY VALVE

Description

[0001] The invention relates to a sanitary valve with a main valve having a movable diaphragm which is movable between a closed position, in which closed position the diaphragm rests tightly on a valve seat of the main valve, and at least one open position, in which open position the diaphragm is spaced from the valve seat.

[0002] A sanitary valve of the type mentioned above is already known from DE 10 2017 105 200 A1, which can be interposed in the water path of a water supply line for switching on or off. The previously known sanitary valve has a main valve whose valve inlet is connected to an upstream line section and whose valve outlet is connected to a downstream section of the water path. The main valve has a movable diaphragm that rests tightly on a valve seat when the main valve is in the closed position and releases the valve seat when it is in the open position. The previously known sanitary valve also has a pilot valve with which the main valve can be controlled between an open position and a closed position.The position of the diaphragm is determined by the position of a valve stem, which is connected to a push-push mechanism, with which the valve stem can be switched between a switching position corresponding to the open position and a switching position corresponding to the closed position. Between the open and closed positions, the push-push mechanism can also gradually specify intermediate positions in which the diaphragm is held at different distances from the valve seat, thus releasing a flow cross-section that is reduced compared to the open position. However, the previously known sanitary valve does not allow for continuous volume regulation of the water flowing through the main valve, or even for regulating and mixing the fluids flowing in from various fluid inlets.

[0003] A sanitary valve unit is already known from DE 10 2016 115 793 A1, which can be installed, for example, in a bathroom faucet. This known valve unit is installed in the faucet's main body and has a temperature control valve, a water-saving valve, and a contact element. The temperature control valve is installed in a mounting chamber in the faucet's main body. The temperature control valve has a water inlet part, a mixing chamber, and a water outlet part. Cold water and hot water flow into the water inlet part and are mixed in the mixing chamber in a predetermined ratio to form mixed water, from where the mixed water exits via the water outlet part. The temperature control valve of the known valve unit comprises an inner water inlet valve seat, a mixing valve insert, and a temperature control valve socket body.The inner water inlet valve seat is provided with a cold water inlet flow channel and a hot water inlet flow channel, with the cold water flowing into the cold water inlet flow channel and the hot water flow channel into the hot water inlet flow channel. The cold water inlet flow channel and the hot water inlet flow channel form the water inlet part of the known valve unit. The water inlet valve seat is firmly connected to the lower end of a mixing valve insert, with a mixing chamber and a mixed water outlet flow channel communicating with the mixing chamber defined inside the mixing valve insert, and the mixed water outlet flow channel located in the water outlet part. The temperature control valve socket body can be pulled over the mixing valve insert with limited rotation within a predetermined angular range and is axially limited between the mixing valve insert and the water inlet valve seat.A cold water flow channel and a hot water flow channel are defined between the temperature control valve socket body and the mixing valve insert. By rotating the temperature control valve socket body, the flow rate of the water flowing between the cold water flow channel and the cold water inlet flow channel and the flow rate of the water flowing between the hot water flow channel and the water inlet flow channel can be directly regulated, thus controlling the mixing ratio of the cold and hot water flowing to the mixing chamber and the mixed water temperature.

[0004] Since the valve unit known from DE 10 2016 115 793 A1 has a temperature control valve and a water-saving valve and since the temperature control valve of the known valve unit with its water inlet part, the mixing chamber and the water outlet part is assembled from several separate components, the known sanitary valve unit has a comparatively large installation length.

[0005] EP 2 865 929 A1 discloses a device for regulating the water in a shower, a bathroom, or a washbasin, comprising: a closure having at least one metal part that is displaceable in a cylindrical chamber with a diameter substantially corresponding to the diameter of the closure; a magnet connected to the metal part of the closure; a push button configured to move the magnet and the closure along an axis of the cylindrical chamber into two different positions corresponding to opening the flow or closing the flow of water from a diffuser, the push button also being rotatable about the axis to vary the open position of the closure along the axis and a corresponding flow rate; the device further comprising a knob rotatable about the axis to adjust the temperature of the water.

[0006] The object is therefore to create a sanitary valve of the type mentioned at the outset which, in addition to a closing function for opening and closing the water outlet, also allows a mixing function for mixing the water flowing in from different inlet lines, for example hot and cold water, or a regulation of the volume of liquid flowing out of the sanitary valve according to the invention per unit of time and which is nevertheless characterized by a compact design and a comparatively short installation length.

[0007] The solution to this problem according to the invention in the sanitary valve of the type mentioned at the outset consists in particular in that the main valve is provided in the interior of an inner housing, which inner housing is mounted in an outer housing so as to be rotatable about a rotation axis, that a first valve opening is provided in the inner housing, which is connected to a first valve opening in the outer housing in a fluid-conducting manner to a valve outlet, which pair of first valve openings is arranged in the rotation axis of the outer housing and inner housing, that the inner housing has at least one second valve opening, which is arranged externally opposite the valve outlet and is associated with at least one second valve opening in the outer housing to at least one valve inlet, that the associated second valve openings can be brought into alignment by relative rotation of the inner and outer housing in such a way thatthat the clear opening cross-section of the at least one valve inlet, which remains free due to the overlap of the respective mutually associated second valve openings, is variable, that the inner housing has a pot-shaped housing lower part, on the inside of the pot base of which a valve nozzle protrudes, which connects the first valve opening of the inner part forming the valve outlet with the valve seat formed by the free sleeve end region of the valve nozzle, and that the housing lower part having the valve openings of the inner housing rests in a liquid-tight manner on the outer housing at least in an annular zone of the pot base lying outside the valve openings and / or the outer circumference of the inner housing.

[0008] The sanitary valve according to the invention has an inner housing that is rotatably mounted in an outer housing. A main valve is provided inside the inner housing, which has a movable diaphragm that can be moved between a closed position, in which closed position the diaphragm rests tightly on a valve seat of the main valve, and at least one open position, in which open position the diaphragm is spaced from the valve seat. With the aid of this main valve, the fluid outlet from the sanitary valve according to the invention can be selectively or alternately opened or closed. The inner housing, which is rotatably mounted in the outer housing about a rotation axis, has a first valve opening that is connected to a first valve opening in the outer housing, conducting fluid to a valve outlet of the main valve. This pair of first valve openings is arranged on the rotation axis between the outer and inner housing.The valve housing also has at least one second valve opening, which is arranged externally opposite the valve outlet of the sanitary valve according to the invention and is assigned to at least one valve inlet with at least one second valve opening in the outer housing. In order to regulate the volume flow of the liquid flowing in via the at least one valve inlet through the sanitary valve and / or to be able to mix liquids with different properties, e.g. hot or cold water, the respectively assigned second valve openings can be brought into alignment by relative rotation of the inner and outer housings in such a way that the clear opening cross-section of the at least one valve inlet left free by the overlapping of the respectively assigned second valve openings can be changed.The inner housing has a pot-shaped lower housing part, from the inside of the pot base of which a valve nozzle protrudes, connecting the first valve opening of the inner part, which forms the valve outlet, with the valve seat formed by the free sleeve end region of the valve nozzle. In this way, a liquid chamber is formed between the valve nozzle and the inner circumference of the lower housing part, which can also serve as a mixing chamber in one embodiment of the sanitary valve according to the invention as a mixing valve. The lower housing part, which has the valve openings of the inner housing, rests in a liquid-tight manner on the outer housing at least in an annular zone of the pot base lying outside the valve openings and, preferably, with the outer circumference of the lower housing part.

[0009] To further promote the compact design of the sanitary valve according to the invention, it may be advantageous for the outer housing to have a preferably disc- or plate-shaped housing base, against which the lower housing part of the inner housing rests in a fluid-tight and rotatable manner, at least with its outer annular and / or peripheral zone. In this embodiment according to the invention, the disc- or plate-shaped housing base can be designed as a structurally simple, solid component, with the exception of the valve openings provided therein.

[0010] To ensure that the lower housing part of the inner housing rests against the outer housing in a fluid-tight manner, at least in an outer annular zone of the pot base and / or with its outer housing circumference, it is advantageous if the lower housing part of the inner housing and / or the housing base(s) of the outer housing are made of ceramic. These components of the outer housing and inner housing rest against each other in a wear-free and fluid-tight manner if the lower housing part and preferably also the housing base are made of ceramic.

[0011] In order for the water flowing through the liquid or mixing chamber in the lower part of the housing to be able to easily exit this liquid or mixing chamber, it is advantageous if the first valve openings of the outer housing and the inner housing have a circular and / or congruent opening cross-section, at least in their adjacent areas.

[0012] In order to be able to regulate the volume flow through the sanitary valve according to the invention well, it is advantageous if the second valve opening in the inner housing, which is connected to at least one second valve opening in the outer housing in a fluid-conducting manner, is designed as a crescent-shaped or circular-arc-shaped elongated hole.

[0013] Preferred embodiments of the sanitary valve according to the invention provide that the sanitary valve is designed as a closing and mixing valve or as a closing and control valve.

[0014] In order to be able to design the sanitary valve according to the invention as a closing and mixing valve, it is advantageous if the first valve opening in the inner housing is assigned to at least two second valve openings in the outer housing in such a way that by relative rotation of the inner and outer housing the clear opening cross-section between the second valve opening in the inner housing and at least one of the second valve openings provided in the outer housing can be reduced and at the same time can be enlarged compared to the second valve opening in the inner housing and at least one other valve opening of the second valve openings provided in the outer housing and vice versa.

[0015] If the sanitary valve according to the invention is designed as a closing and mixing valve, it is advantageous if the second valve openings provided in the outer housing can be connected to different liquid supplies, for example for hot and cold water.

[0016] The structurally simple, low-maintenance and compact design of the sanitary valve according to the invention is further enhanced if the annular space provided between the valve nozzle and the inner circumference of the housing lower part forms a mixing chamber.

[0017] A preferred embodiment according to the invention provides that the housing lower part is connected to a one-, two- or multi-part housing upper part of the inner housing, that the membrane is clamped between the housing lower part and the housing upper part of the inner housing in a clamping zone, and that the membrane seals at least with its clamping zone between the housing lower part and the housing upper part of the inner housing.

[0018] In this inventive solution, the membrane is clamped in a clamping zone between the lower housing part and an upper housing part of the inner housing. The membrane seals between the lower housing part, which is made of ceramic, for example, and the upper housing part of the inner housing, which is preferably made of plastic.

[0019] A preferred embodiment according to the invention provides that the housing lower part and the housing upper part of the inner housing are made of different materials and / or that the housing upper part of the inner housing is made of plastic.

[0020] In order to be able to operate the sanitary valve according to the invention reliably, any mechanism is suitable that allows the diaphragm to be placed against the valve seat of the main valve or to be lifted off the valve seat. However, a further embodiment according to the invention provides that the sanitary valve has a pilot valve in its inner housing, with which the main valve can be controlled between the open position and the closed position, and that the position of the diaphragm can be predetermined by the position of a valve tappet that is connected to a push-push mechanism with which the valve tappet can be switched between a switching position corresponding to the open position and a switching position corresponding to the closed position of the sanitary valve. The preferred embodiment described here allows for reliable and stable operation of the sanitary valve according to the invention with comparatively little effort.

[0021] In order to reduce the risk of unwanted leaks and to reduce the number of ring seals required on the sanitary valve according to the invention, it is advantageous if the free sleeve end region of the valve nozzle, designed as a valve seat, is arranged at a distance below a parting plane arranged between the lower housing part and the upper housing part of the inner housing.

[0022] The ease of handling and operation of the sanitary valve according to the invention is further enhanced if the inner housing protrudes beyond the outer housing with a guide section, in which guide section of the inner housing a push button is slidably guided, which is in control and / or operative connection with the valve stem. By pressing the push button, the pilot valve in the inner housing can be actuated, which controls the main valve and can be moved selectively or alternately into its closed or open position.

[0023] In order to be able to convert a rotary movement acting on the guide section into a relative rotation of the inner and outer housing, it is advantageous if the guide section of the inner housing is connected in a rotationally fixed manner to its lower housing part and / or upper housing part and is designed as a rotatable actuating element for the relative rotation of the inner housing and outer housing.

[0024] In order to be able to keep the pressure force required to actuate the sanitary valve according to the invention and exerted on the push button as low as possible, it is advantageous if the valve seat, which can be closed with the membrane, is arranged between the valve outlet and the at least one valve inlet, wherein the membrane closes off a pressure chamber which can be filled from the at least one valve inlet, so that the membrane closes the valve slot in a closed position when the pressure chamber is filled and releases the valve seat in an open position when the pressure chamber is relieved.

[0025] A preferred embodiment according to the invention provides that a relief opening on the membrane opening into the at least one valve outlet can be closed with the valve tappet.

[0026] Further developments according to the invention will become apparent from the following description of the figures in conjunction with the claims and the drawing. The invention is described in more detail below using preferred embodiments.

[0027] It shows: Figure 1 shows a sanitary valve designed as a closing and mixing valve in a perspective view with a view of the underside or back of this sanitary valve, Figure 2 shows the sanitary valve from Figure 1 in a perspective view looking at the front or top of this sanitary valve, Figure 3 the sanitary valve from the Figures 1 and 2 in a side view, Figure 4 the sanitary valve from the Figures 1 to 3 in a plan view of the bottom or back of this sanitary valve, Figure 5the sanitary valve from the Figures 1 to 4in an exploded perspective view of individual components, wherein the sanitary valve and the components separated from it are shown in a plan view of the back or underside, Figure 6 the sanitary valve from the Figures 1 to 5 in an exploded perspective view of individual components, with the sanitary valve shown here looking at the front or top of the sanitary valve, Figure 7 the sanitary valve from the Figures 1-6 in a longitudinal section, the sanitary valve being shown here in an open position of the main valve integrated into the sanitary valve, Figure 8 the sanitary valve, also shown here in a longitudinal section, from the Figures 1 to 7 in the closed position of its main valve, Figure 9the sanitary valve from the Figures 1 to 8in an isometric longitudinal section, wherein the sanitary valve has a lower housing base of an outer housing, against which the pot-shaped housing lower part of an inner housing rests, which inner housing is rotatably mounted in the outer housing, Figure 10 in the inner housing of the according to the Figures 1 to 9 designed sanitary valve in a top view with a view of an internal housing chamber, Figure 11 the housing lower part of Figure 10 in a perspective view with a view of the housing chamber, Figure 12 the housing bottom part from the Figures 10 and 11 in a plan view of the rear or underside of the housing base facing the housing base, Figure 13 the housing base from the Figures 10 to 12 in a perspective view looking at the back or underside of the housing base, Figure 14 on the outer housing of the Figures 1 to 9shown sanitary valve in an "upside down" side view, Figure 15 the housing bottom from Figure 14 in a cross section through section plane XIV-XIV Fig. 14 , Figure 16the case bottom from the Figures 14 and 15 in a plan view of the front, end or flat side of the housing base facing the housing bottom part of the inner housing, Figure 17 the housing base from the Figures 14 to 16 in a perspective view with a view of the front of the housing base facing the housing base, Figure 18 the housing base from the Figures 14 to 17 in a plan view of the back of the housing base facing away from the lower part of the housing, Figure 19 the housing base from the Figures 14 to 18 in a perspective view with a view of the rear end face of the housing base facing away from the lower part of the housing, Figure 20 the sanitary valve from the Figures 1 to 9in an exploded perspective detail view looking at the front of its individual components, Figure 21 the sanitary valve from the Figures 1 to 9 in an exploded perspective view of the individual parts with a view of the back of its individual components, Figure 22 a sanitary valve designed here as a closing and control valve in a perspective view with a view of the back or underside of this sanitary valve, Figure 23 the sanitary valve from Figure 22 in a perspective view looking at the front or top of this sanitary valve, Figure 24 the sanitary valve from Figures 22 and 23 in a side view, Figure 25 the sanitary valve from the Figures 22 to 24 in a plan view of the back or underside of the sanitary valve, Figure 26the sanitary valve from the Figures 22 to 25in an exploded perspective view of its individual components, the individual components of the sanitary valve being shown here with a view of the back or underside of these components, Figure 27 the sanitary valve from the Figures 22 to 26 in an exploded perspective view of its individual components, these components being shown here with a view of the front or top of these components, Figure 28 the sanitary valve from the Figures 22 to 27 in a longitudinal section, where the sanitary valve is shown here in the open position of its main valve, Figure 29 the sanitary valve, also shown here in a longitudinal section, from the Figures 22 to 28 , the main valve is shown here in its closed position, Figure 30 the lower housing part of the Figures 22 to 29 shown sanitary valve in a plan view of the inner housing chamber of the housing lower part, Figure 31 the housing lower part of Figure 30in a perspective view with a view of the housing chamber arranged inside the housing between a central valve nozzle on the one hand and the inner circumference of the housing lower part on the other hand, Figure 32 the housing lower part from the Figures 30 and 31 in a plan view of the rear or underside end face of the housing base facing the housing base in the position of use, Figure 33 the housing base from the Figures 30 to 32 in a perspective view with a view of the rear or underside of the housing end face of the housing base facing the housing base in the position of use, Figure 34 the housing base of the Figures 22 to 29 shown sanitary valve in a plan view of the front end face of the housing base facing the housing base in the position of use, Figure 35 the housing base from Figure 34in a perspective view with a view of the front surface of the case bottom facing the lower part of the case in the position of use, Figure 36 the case bottom from the Figures 34 and 35 in a plan view of the rear or underside face of the housing base, Figure 37 the housing base from the Figures 34 to 36 in a perspective view looking at the rear or underside face of the housing base, Figure 38 the sanitary valve from the Figures 22 to 29 looking at the rear or underside face of the sanitary valve, with the valve inlet shown here in a middle flow position, Figure 39 the sanitary valve from the Figures 22 to 29 and 38 in a rotational position of its outer and inner housing, in which rotational position the valve inlet of the sanitary valve assumes a position of lower flow, and Figure 40 the sanitary valve from the Figures 22 to 29 and 38 to 39in a plan view of the rear or underside face of the sanitary valve, with the valve inlet in its open position, in which open position the valve inlet allows the greatest possible flow.

[0028] In the Figures 1 to 21 and 22 to 40 A sanitary valve is shown in two versions 1,201. The sanitary valve 1,201, which can be installed, for example, in the fitting body of a sanitary fitting (not shown), has an inner housing 2,202, which is rotatably mounted in an outer housing 3,203. A main valve 4,204 is provided inside the inner housing 2,202, which has a movable diaphragm 5,205, which is arranged between a Figures 8 and 9 or 27 shown closed position, in which closed position the membrane 5,205 rests tightly on a valve seat 6,206 of the main valve 4,204, and at least one in the Figures 7 and 26shown open position, in which open position the membrane 5,205 is spaced from the valve seat 6,206.

[0029] With the help of the main valve 4,204, the liquid outlet from the sanitary valve 1,201 can be selectively or alternately opened or closed. The inner housing 2,202, which is mounted in the outer housing 3,203 so as to be rotatable about a rotation axis L, has a first valve opening 7,207, which is connected to a first valve opening 8,208 in the outer housing 3,203 in a fluid-conducting manner to a valve outlet of the sanitary valve 1,201, wherein this pair of first valve openings 7,8; ​​207,208 is arranged at least with their mutually adjacent opening sections in the rotation axis L. The inner housing 2,202 also has at least one second valve opening 9,209, which is arranged externally opposite the valve outlet of the sanitary valve 1,201 and is connected to at least one second valve opening 10,11; 210 in the outer housing 3,203 to at least one valve inlet 12,13; 212 of the sanitary valve 1,201.

[0030] In order to regulate the volume flow of the liquid flowing through the sanitary valve 1,201 per unit of time via the at least one valve inlet 12,13; 212 and / or to be able to mix liquids with different properties, e.g. hot or cold water, the respective second valve openings 9,10,11; 209,210 associated with one another can be brought into alignment by relative rotation of the inner housing 2,202 and the outer housing 3,203 in such a way that the clear space remaining free due to the overlap of the respective second valve openings 9,10,11; 209,210 associated with one another

[0031] Opening cross-section of the at least one valve inlet 12,13; 212 is variable. The inner housing 2,202 of the sanitary valves 1,201 each has a Figures 10 to 13 and 30 to 33The housing has a pot-shaped lower housing part 14,214, shown in more detail, on the inside of the pot base of which a valve connecting piece 15,215 protrudes, connecting the first valve opening 7,207 of the inner housing 2,202, forming the valve outlet, to the valve seat 6,206 formed by the free sleeve end region of the valve connecting piece 15,215. The lower housing part 14,214, which has the valve openings 7,9; 207,209 of the inner housing 2,202, bears against the outer housing 3,203 in a liquid-tight manner at least in an annular zone of the pot base lying outer relative to the valve openings 7,9, 207,209 and / or in a partial region of the housing outer circumference of the lower housing part 14,214. Since the valve nozzle 15,215 protrudes in the pot-shaped housing lower part 14,214 of the inner housing 2,202 and forms a liquid chamber 16,216 between itself and the inner circumference of the housing lower part 14,214, which in the Figures 1 to 21 The closing and mixing valve shown can also serve as a mixing chamber.

[0032] With the main valve 4,204 provided in the sanitary valves 1,201 shown here, the water outlet can be moved between an open and a closed position. Furthermore, by rotating the inner housing 2,202 and the outer housing 3,203 relative to each other, the water volume flowing out of the sanitary valve 1,201 can be regulated, or the fluids flowing in from at least two supply lines can be mixed in the lower housing section 14,214 of the inner housing 2,202. The sanitary valves 1,201 shown here are also characterized by a compact design and a comparatively short installation length. The outer housings 3,203 of the sanitary valves shown in the Figures 1 to 21The sanitary valves 1,201 shown in FIGS. 22 to 40 each have a disc- or plate-shaped housing base 17,217, against which the housing lower part 14,214 of the inner housing 2,202 rests in a fluid-tight and rotatable manner, at least with its outer annular and / or circumferential zone. The housing lower part 14,214 of the inner housing 2,202 and the housing base 17,217 of the outer housing 3,203 are made of ceramic.

[0033] From a comparison of the Figures 10 to 13 or 14 to 19 on the one hand and the Figures 30 to 33 and 34 to 37 On the other hand, it is clear that the first valve openings 7,8; ​​207,208 of the outer casing 3,203 and the inner casing 2,202 have a circular and congruent opening cross-section, at least in their adjacent areas. Figures 1 to 21In the sanitary valve 1 shown and designed as a closing and mixing valve, the second valve opening 9 in the inner housing 2 is assigned to at least two second valve openings 10, 11 in the outer housing 3 in such a way that, by relative rotation of the inner housing 2 and the outer housing 3 about the axis of rotation L, the clear opening cross-section of the second valve opening 9 in the inner housing 2 and at least one valve opening 10 or 11 of the second valve openings 10; 11 provided in the outer housing 3 can be reduced and increased compared to at least one valve opening 11 or 10 of the other second valve openings 11; 10 provided in the outer housing, and vice versa. The second valve openings 10, 11 provided in the outer housing 3 and in particular in its housing base 17 can be connected to various liquid supplies, for example for hot and cold water.

[0034] In the Figures 1 to 21In the sanitary valve 1 shown, the annular space 16 provided between the valve nozzle 15 and the inner circumference of the housing lower part 14 forms a mixing chamber into which the valve inlets 12, 13 open.

[0035] The Figures 22 to 40 The sanitary valve 201 shown here is designed as a closing and regulating valve with which the amount of water flowing through per unit of time can be regulated. The sanitary valve 201 has a first valve opening 207 in its lower housing part 214, which interacts with only a first valve opening 208 in the housing base 217 of the outer housing 203 in such a way that the amount of water flowing through per unit of time can be regulated by a relative rotation of the inner housing 202 and the outer housing 203.

[0036] The mixing or control function provided in the sanitary valves 1,201 is separate from the closing function of these sanitary valves 1,201. The sanitary valves 1,201 have a pilot valve 19,219 in their inner housing 2,202, with which the main valve 4,204 can be controlled between the open and closed positions. The position of the diaphragm 5,205 can be specified by the position of a valve stem 20,220, which is connected to a push-push mechanism 21,221, with which the valve stem 20,220 can be switched between a switching position corresponding to the open position and a switching position corresponding to the closed position of the sanitary valve 1,201. This push-push mechanism 21,221 can be designed as a rotary / locking or ballpoint pen mechanism and allows adjustment of the valve tappet 20,220 between the open position and the closed position of the main valve 4,204 by a simple manual pressure or tactile movement.By means of this push-push mechanism 21,221, the valve tappet 20,220 can be switched between the switching position of the main valve 4,204 corresponding to the open position and a switching position corresponding to the closed position.

[0037] As can be seen particularly from the longitudinal sections according to the Figures 7 to 9 and 28 to 29 As can be seen, the main valve 4,204 of the sanitary valves 1,201 has the movable diaphragm 5,205, which is made of an elastic material and supports a valve body 23,223 of the main valve 4,204. The diaphragm 5,205 can be controlled by the pilot valve 19,219. For this purpose, the pilot valve 19,219 has the longitudinally displaceable valve stem 20,220, the position of which along its travel determines the respective position of the valve body 23,223 and thus of the diaphragm 5,205.

[0038] A push button 24,224 is formed on the outside of the push-push mechanism 21,221, with which the push-push mechanism 21,221 can be switched between different switching positions, and in particular between the open and closed positions of the main valve 4,204, by repeatedly pressing it. The push-push mechanism 21,221 is operatively or control-connected to the valve tappet 20,220. The push-push mechanism 21,221 has at least two switching states corresponding to the open and closed positions, between which the valve tappet 20,220 can be switched due to the operative connection.

[0039] In the Figures 8 and 9 29 and 29 respectively, a lower or outer switching position is shown, in which the main valve 4,204 of the sanitary valves 1,201 is closed and thus in its closed position. Figures 7 and 28An upper or further outer switching position is shown, in which the main valve 4,204 is fully open and thus in its open position. The pilot valve 19,219 has a relief opening 25,225 formed on the valve body 23,223 and thus on the movable diaphragm 5,205. If this relief opening 25,225 is closed, a pressure builds up that presses the diaphragm 5,205 with the valve body 23,223 into the valve seat 6,206 of the main valve 4,204. The main valve 4,204 is then in its closed position.

[0040] If the relief opening 25,225 is opened, the pressure mentioned is reduced, so that the diaphragm 5,205 with the valve body 23,223 moves away from the valve seat 6,206. The main valve 4,204 is thus opened. Accordingly, the Figures 7 to 9 and 28 to 29different positions of the valve tappet 20,220, each of which forms a switching position of the at least two switching positions of the main valve 4,204, as can be predetermined by the push-push mechanism 21,221.

[0041] The main valve 4,204 has the valve seat 6,206, which can be tightly closed by the valve body 23,223 and the diaphragm 5,205. The valve seat 6,206 is arranged in the flow direction between the valve inlets 12,13 of the sanitary valve 1 or the valve inlet 212 of the sanitary valve 201 and the valve outlet. The main valve 4,204 therefore serves to separate the valve inlets 12,13 or the valve inlet 212 and the valve outlets of the main valves 4,204.

[0042] The diaphragm 5,205 closes off a pressure chamber 26,226, which can be filled from the valve inlets 12,13; 212 via a filling opening in the diaphragm 5,205 (not shown here). This filling opening is always open. This ensures that the diaphragm 5,205 with the valve body 23,223 arranged on it remains in the position shown in the Figures 8 and 29 shown closing position closes the valve seat 6,206 and when the pressure chamber 26,226 is relieved in the position shown Figures 7 and 9 or 28 shown open position releases the valve seat 6,206.

[0043] As already mentioned above, the relief opening 25,225 can be closed and opened with the valve tappet 20,220. Since the relief opening 25,225 leads to the valve outlet, opening the relief opening 25,225 leads to the aforementioned pressure reduction in the pressure chamber 26,226 and thus to the opening of the main valve 4,204. For this purpose, the relief opening 25,225 is dimensioned larger than the aforementioned filling opening.

[0044] The valve tappet 20,220 is coupled to the push-push mechanism 21,221 via a control element 27,227 to assume the switching positions described above. The control element 27,227 is tightly inserted into the pressure chamber 26,226 from the outside. A compensating device is also formed in the operative connection between the pilot valve 19,219 and the push-push mechanism 21,221, which allows actuation of the push-push mechanism 21,121 even when the pilot valve 19,219 is closed and cannot be moved further against the valve seat 6,206.

[0045] In the individual parts representations according to the Figures 20,21 and 26,27It can be seen that the main valve 4,204 also has a cleaning element 28,228, which is designed to be resilient and, with a pin-shaped free end 29,229, penetrates and keeps clear the filling opening in the membrane 5,205 (not further visible here). With its fixed end, the cleaning element 28,228 is fixedly arranged in the inner housing 2,202.

[0046] From the Figures 10 to 13 It is clear that the second valve opening provided in the lower part of the inner housing 2 is designed as a circular arc-shaped elongated hole. As can be seen from the Figures 15 to 19As is clear, the second valve openings 10, 11 in the outer housing 3 assigned to the second valve opening 9 provided in the housing lower part 14 of the inner housing 2 are also each designed as a circular arc-shaped elongated hole in their area facing the housing lower part 14, wherein the valve openings 10, 11 in the housing base 17 have a shorter circular arc section compared to the valve opening 9 in the housing lower part 14. By relatively rotating the inner and outer housings 2, 3, the clear opening cross-section of the second valve opening provided between the second valve opening 9 in the inner housing 2 and at least one valve opening 10 or 11 of the outer housing 3 can be reduced and, at the same time, the clear opening cross-section of the second valve opening 9 in the inner housing 2 can be enlarged compared to the other second valve opening 11 or 10 provided in the outer housing 3, and vice versa.

[0047] As can be seen from the Figures 38 to 40As is clear, the clear opening cross-section of the valve inlet in the sanitary valve 201 can be enlarged or reduced as required according to the rotational position of the inner housing 202, which can be rotated relative to the outer housing 203, in such a way that the flow rate through the sanitary valve 201 increases or decreases.

[0048] The inner housing 2,202 of the sanitary valve 1,201 protrudes beyond the outer housing 3,203 with a guide section 30,230. The push button 24,224, which is in control or operative connection with the valve stem 20,220, is slidably guided in this guide section 30,230 of the inner housing 2,202. The guide section 30,230 of the inner housing 2,202 is connected to its lower housing section 14,214 and is designed here as a rotatable actuating element for the relative rotation of the outer housing 3,203 and the inner housing 2,202. The outer housing 3,203 encloses the inner housing 2,202 with the exception of the valve inlets and outlets and the guide section 30,230.

[0049] In the Figures 1 to 21In the sanitary valve 201 shown, a stop sleeve 31 is placed on the guide section 30. This stop sleeve 31 has a counter-profiling on its inner circumference, which is rotationally secured to a profile on the outer circumference of the guide section 30. The stop sleeve 31 has pin-shaped rotation stops 32 that protrude in the direction of the outer housing 3 and interact with counter-stops 33 on the outer housing 3. By means of these rotation stops 32 and counter-stops 33 provided on the stop sleeve 31 and the outer housing 3, the temperature of the mixed water flowing out of the sanitary valve 1 can be set to a defined temperature range.

[0050] In the perspective individual part representations according to the Figures 20 and 21As well as 26 and 27, a sleeve-shaped upper housing part 34,234 of the outer housing 3,203 of the valves 1,201 can be seen. This upper housing part 34,234 has a central through-opening 35,235 for the guide section 30,230 of the inner housing 2,202. Below the guide section 30,230, the push button 24,224 can be seen, onto which a cap (not shown here) can be detachably, latched, or the like. A rotary cap 36,236 of the push-push mechanism 21,221 can be inserted into the sleeve-shaped push button 24,224, into which rotary cap 36,236 the control element 27,227 of the valve tappet 20,220 protrudes. On the circumference of the rod-shaped control element 27,227, a groove is provided into which a clip 37,237 can be inserted, which connects the valve tappet 20,220 and its control element 27,227 captively but movably to the rotary cap 36,236.A return element 39,239, designed as a compression spring, acts on the rotary cap 36,236 and a bushing 38,238 inserted therein. The upper housing section of the inner housing 2,202 is constructed in two parts and comprises an outer part 40,240 carrying the guide section 30,230, into which an inner part 41,241 is inserted. The control element 27,227 of the valve tappet 20,220 is guided in a central guide opening in the inner part 41,241, with the control element 27,227 being sealed in the guide opening by a sealing ring 42,242. In the inner part 41,241, the valve tappet 20,220 is pressed toward the diaphragm 5,205 by means of a helical compression spring 43,243. In order for the valve tappet 20,220 to be able to tightly close the relief opening 25,225 in the diaphragm 5,205, it has a sealing cap 44,244 on its tappet end facing the diaphragm 5,205.Within the housing lower part 14,214, the cleaning element 28,228, designed as a compression spring, is shown with its end 29,229 protruding into the ventilation opening (not shown) in the membrane 5,205. The outer part 40,240 of the inner housing 2,202 has the guide section 30,230, which has a profile formed by longitudinal grooves on its cylindrical outer circumference. A sleeve-shaped cap (not shown here) is placed onto this profiled guide section 30,230 if necessary. Visible within the outer part 3,203 is the valve body 23,223, which is latched or otherwise connected to the membrane 5,205 at a central fastening opening.

[0051] As can be seen from the longitudinal sections according to the Figures 7 to 9 and 28 to 29As can be seen, the membrane 5,205 is clamped between the lower housing section 14,214 of the inner housing 2,202 and its inner part 41,241, whereby the membrane 5,205 seals these different material components 14,41;214,241 of the sanitary valves 1,201 against each other. Sealing rings 45,46,47;245,246 are provided on the outside of the sanitary valves 1,201, which seal the sanitary valve installed in the fitting body of a sanitary fitting in the area of ​​an annular shoulder on the outer circumference of the housing serving as an insertion stop, or in the area of ​​the valve inlets 12,13;212. Anti-rotation projections 48,248 protrude from the housing base 17;217, which engage in corresponding holes in the fitting body and secure the sanitary valve 1,201 when rotating on the guide section 30,230 against unintentional rotation of the sanitary valves 1,201 themselves. List of reference symbols

[0052] 1Sanitary valve (according to Figures 1-21) 2Inner housing 3Outer housing 4Main valve 5Diaphragm 6Valve seat 7First valve opening in inner housing 2 8First valve opening in outer housing 3 9Second valve opening in inner housing 2 10Second valve opening in outer housing 3 11Second valve opening in outer housing 3 12Valve inlet 13Valve inlet 14Lower housing section 15Valve nozzle 16Liquid chamber 17Housing base 19Pilot valve 20Valve tappet 21Push-push mechanism 23Valve body 24Push button 25Relief opening 26Pressure chamber 27Control element 28Cleaning element 29Free end of the cleaning element 28 30Guide section 31Stop sleeve 32Rotary stops 33Counter stops 34Upper housing section 35Central opening 36Rotary cap 37Clip 38Bushing 39Reset element 40Outer part 41Inner part 42Sealing ring 43Screw compression spring 44Sealing cap 45Sealing ring 46Sealing ring 47Sealing ring 48Anti-rotation projection 201Sanitary valve (according to Fig. 22 to 40) 202 Inner housing 203 Outer housing 204 Main valve 205 Diaphragm 206 Valve seat 207 First valve opening in inner housing 202 208 First valve opening in outer housing 203 209 Second valve opening in inner housing 202 210 Second valve opening in outer housing 203 212 Valve inlet 214 Housing lower section 215 Valve nozzle 216 Fluid chamber 217 Housing base 219 Pilot valve 220 Valve tappet 221 Push-push mechanism 223 Valve body 224 Push button 225 Relief opening 226 Pressure chamber 227 Control element 228 Cleaning element 229 Free end of the cleaning element 228 230 Guide section 234Housing top 235Central through-opening 236Rotating cap 237Clip 238Bushing 239Reset element 240Outer part 241Inner part 242Sealing ring 243Screw compression spring 244Sealing cap 245Sealing ring 246Sealing ring 248Anti-rotation projection LRotation axis

Claims

1. Sanitary valve (1, 201) having a main valve (4, 204) which has a movable diaphragm (5, 205) which can be moved between a closed position, in which closed position the diaphragm (5, 205) rests tightly on a valve seat (6, 206) of the main valve (4, 204), and between at least one open position, in which open position the diaphragm (5, 205) is spaced apart from the valve seat (6, 206), wherein the main valve (4, 204) is provided in the housing interior of an inner housing (2, 202), which inner housing (2, 202) is rotatably mounted in an outer housing (3, 203) about an axis of rotation (L), wherein a first valve opening (7, 207) is provided in the inner housing (2, 202), which are connected to a first valve opening (8, 208) in the outer housing (3, 203) in a fluid-conducting manner to a valve outlet of the sanitary valve (1, 201), which pair of first valve openings (7, 8; 207, 208) is arranged in the axis of rotation (L), wherein the inner housing (2, 202) has at least one second valve opening (9, 209) which is arranged externally with respect to the valve outlet and is assigned with at least one second valve opening (10, 11; 210) in the outer housing (3, 203) to at least one valve inlet (12, 13; 212) of the sanitary valve (1, 201), wherein the respectively mutually assigned second valve openings (9, 10, 11; 209, 210) can be brought into alignment by relative rotation of the inner and outer housing (2, 3; 202, 203) in such a way that the clear opening cross-section of the at least one valve inlet (12, 13; 212), which is left free by overlapping the respectively mutually assigned second valve openings (9, 10, 11; 209, 210), can be varied, wherein the inner housing (2, 202) has a pot-shaped lower housing part (14, 214), on the inside of the pot base of which projects a valve connection piece (15, 215) which connects the first valve opening (7, 207), forming the valve outlet, of the inner housing (2, 202) to the valve seat (6, 206) formed by the free sleeve end region of the valve connection piece (15, 215), characterized in that the lower housing part (14, 214) having the valve openings (7, 9; 207, 209) of the inner housing (2, 202) rests against the outer housing (3, 203) in a liquid-tight manner at least in an annular zone of the pot base lying on the outside with respect to the valve openings (7, 8, 9, 10, 11; 207, 208, 209, 210).

2. Sanitary valve according to claim 1, characterized in that the outer housing (3, 203) has a preferably disk-shaped or plate-shaped housing base (17, 217), against which the lower housing part (14, 214) of the inner housing (2, 202) rests in a liquid-tight and rotatable manner at least with its outer annular and / or circumferential zone.

3. Sanitary valve according to claim 1 or 2, characterized in that the lower housing part (14, 214) of the inner housing (2, 202) and / or the / one housing base (15, 215) of the outer housing (3, 203) is / are made of ceramic.

4. Sanitary valve according to one of claims 1 to 3, characterized in that the first valve openings (7, 8; 207, 208) of outer housing (3, 203) and inner housing (2, 202) have a circular and / or congruent opening cross-section at least in their mutually adjacent regions.

5. Sanitary valve according to one of claims 1 to 4, characterized in that the second valve opening (9; 209) in the inner housing (2, 202), which is connected to at least one second valve opening (10, 11; 210) in the outer housing (3, 203) in a fluid-conducting manner, is designed as a crescent-shaped or circular-arc-shaped elongated hole.

6. Sanitary valve according to one of claims 1 to 5, characterized in that the sanitary valve is designed as a closing and mixing valve (1) or as a closing and regulating valve (201).

7. Sanitary valve according to one of claims 1 to 6, characterized in that the second valve opening (9) in the inner housing (2) is assigned to at least two second valve openings (10, 11) in the outer housing (3) in such a way that, by relative rotation of the inner and outer housings (2, 3), the clear opening cross-section of the valve opening between the second valve opening (9) in the inner housing (2) and at least one valve opening (10; 11) of the second valve openings (10, 11) provided in the outer housing (3) can be reduced and enlarged relative to at least one other valve opening (11; 12) of the second valve openings (10, 11) provided in the outer housing (3) and vice versa.

8. Sanitary valve according to one of claims 1 to 7, characterized in that the second valve openings (10, 11) provided in the outer housing (3) can be connected to different liquid supply lines, for example for hot and cold water.

9. Sanitary valve according to one of claims 1 to 8, characterized in that the annular space provided between the valve connection piece (15) and the inner circumference of the lower housing part (14) forms a mixing chamber.

10. Sanitary valve according to one of claims 1 to 9, characterized in that the lower housing part (14, 214) is connected to an upper housing part of the inner housing (2, 202), in that the diaphragm (5, 205) is clamped between the lower housing part (14, 214) and the upper housing part of the inner housing (2, 202) in a clamping zone, and in that the diaphragm (5, 205) seals between the lower housing part (14, 214) and the upper housing part of the inner housing (2, 202).

11. Sanitary valve according to one of claims 1 to 10, characterized in that the lower housing part (14, 214) and the upper housing part of the inner housing (2, 202) are of different materials and / or in that the upper housing part of the inner housing (2, 202) is made of plastic.

12. Sanitary valve according to one of claims 1 to 11, characterized in that the sanitary valve (1, 201) has a pilot valve (19, 219) in its inner housing (2, 202), with which the main valve (4, 204) can be actuated between the open position and the closed position, and in that the position of the diaphragm (5, 205) can be predetermined by the position of a valve tappet (20, 220) which is connected to a push-push mechanism (21, 221) with which the valve tappet (20, 220) can be switched between a switching position corresponding to the open position and a switching position corresponding to the closed position of the sanitary valve (1, 201).

13. Sanitary valve according to one of claims 1 to 12, characterized in that the free sleeve end region of the valve connection piece (6, 206), which is designed as a valve seat (6, 206), is arranged at a distance below a parting plane arranged between the lower housing part (14, 214) and the upper housing part of the inner housing (2, 202).

14. Sanitary valve according to one of claims 1 to 13, characterized in that the inner housing (2, 202) projects with a guide section (30, 230) beyond the outer housing (3, 203), in which guide section (30, 230) of the inner housing (2, 202) a pushbutton (24, 224), which is in control and / or active connection with the valve tappet (20, 220), is displaceably guided.

15. Sanitary valve according to claim 14, characterized in that the guide section (30, 230) of the inner housing (2, 202) is non-rotatably connected to its lower housing part (14, 214) and / or upper housing part and is designed as a rotatable actuating element for relative rotation of the inner housing (2, 202) and outer housing (3, 203).

16. Sanitary valve according to one of claims 1 to 15, characterized in that the valve seat (6, 206) is arranged between the valve outlet and the at least one valve inlet (12, 13; 212) and can be closed by the diaphragm (5, 205), wherein the diaphragm (5, 205) closes off a pressure chamber (26, 226) which can be filled from the at least one valve inlet (12, 13; 212), so that the diaphragm closes the valve seat (6, 206) in a closed position when the pressure chamber (26, 226) is filled and releases the valve seat (6, 206) in an open position when the pressure chamber (26, 226) is relieved.

17. Sanitary valve according to one of claims 1 to 16, characterized in that a relief opening (25, 225) on the diaphragm or a valve body (23, 223) of the diaphragm (5, 205) opening into the at least one valve outlet can be closed with the valve tappet (20, 220).