EP4295067A1

EP4295067A1 - Sanitary valve

Info

Publication number: EP4295067A1
Application number: EP22706601.6A
Authority: EP
Inventors: Jacek Kowol; Marc Tempel; Yichao Bian
Original assignee: Neoperl GmbH
Current assignee: Neoperl GmbH
Priority date: 2021-02-19
Filing date: 2022-02-18
Publication date: 2023-12-27
Also published as: CN217153094U; WO2022175431A1; WO2022175431A8; DE202021100839U1; TW202316009A; US20240117892A1; CN114962701A

Abstract

The invention relates to a sanitary valve (1) comprising a main valve (2), which has a movable diaphragm (3), and a pilot valve (4), by means of which the main valve (2) can be actuated between an open position and a closing position. The position of the diaphragm (3) can be specified by the position of a valve tappet (5) that is connected to a push-push mechanism (6), by means of which (6) the valve tappet (5) can be switched between a switching position corresponding to the open position and a switching position corresponding to the closing position. The sanitary valve (1) according to the invention is characterized in that the main valve (2) and the pilot valve (4) are provided in the interior of an inner housing (7) that is rotatably mounted in an outer housing (8) about a rotational axis (L) such that the outer housing (8) and the inner housing (7) have paired valve openings (9, 10; 11, 12), a first pair of valve openings (9, 10) of which, said pair being arranged coaxially to the rotational axis (L), are designed as a valve outlet (13) and at least one second pair of valve openings (11, 12) of which, said pair lying outwardly relative to the rotational axis (L), are designed as at least one valve inlet (14), said at least one second pair of valve openings (11, 12) being capable of being brought into congruence according to the rotational position between the outer housing and the inner housing (8, 7) such that the remaining clear opening cross-section of the at least one valve inlet (14) produced by the congruence of said second valve openings (11, 12) is modified (cf. fig. 1).

Description

sanitary valve

The invention relates to a sanitary valve with a main valve, which has a movable membrane, and with a pilot valve, with which the main valve can be controlled between an open position and a closed position, the position of the membrane being predeterminable by the position of a valve tappet, which is operated with a push -Push mechanism is connected, 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.

DE 102017 105 200.3 already discloses a sanitary valve of the type mentioned at the outset, which can be interposed in the waterway of a water supply line for switching on or switching over. For this purpose, the previously known sanitary valve has a main valve, the valve inlet of which is connected to an inflow-side line section and the valve outlet of which is connected to an outflow-side section of the water path. The main valve has a movable membrane which lies tightly on a valve seat in the closed position of the main valve and which releases the valve seat in an 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 membrane can be predetermined by the position of a valve tappet which is in control connection with 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. Between the open position and the closed position, the push-push mechanism can gradually specify intermediate positions in which the membrane is held at different distances from the valve seat and thus releasing a flow cross section that is reduced compared to the open position. However, stepless regulation of the amount of water flowing through the main valve is not possible with the previously known sanitary valve.

A sanitary valve is already known from EP 3561 351 A1, which can be integrated into a sanitary outlet fitting as a mixing and shut-off device.

The sanitary valve previously known from EP 3561 351 A1 has a valve housing, a valve unit with shut-off control for controlling a fluid flow rate and mixing control for controlling a fluid mixing ratio, a shut-off operating device, a mixing operating device which can be rotated about a mixing axis of rotation between a first mixing end position and a second mixing end position, a self-resetting device which provides a restoring force for the automatic return of the mixing control device to the first mixing end position and a latching device which couples the mixing control device to the valve housing body in a latching manner, with a latching force being greater than the restoring force in the open position of the shut-off operating device and smaller than the restoring force in the shut-off position. In the valve housing of the sanitary valve previously known from EP 3561 351 A1, a cartridge unit is provided which has a control disk and a distributor disk which interacts therewith and which are made of ceramic. By actuating a push button, the valve unit can be moved between an open position and a closed position. To activate the mixing control of the valve unit used in the previously known sanitary valve, the mixing operating device can be rotated between the first mixing end position and the second mixing end position of the valve unit. When turning the mixer control device from the first towards the second mixing end position is as Tension spring-acting helical spring element of the self-return device is increasingly elongated, as a result of which the screw element exerts a corresponding elastic restoring force on the mixing control device in the direction of the first mixing end position. The first mixing end position, for example, a cold water position and the second mixing end position of a warm or

Correspond hot water position, in which then emerges at the water outlet of the previously known sanitary valve pure cold water or pure warm / hot water. In the intermediate positions, mixed water consisting of cold water and warm/hot water is provided at the water outlet.

Due to the multiple parts of the previously known sanitary valve from EP 3561 351 A1 and the cartridge unit having a pair of ceramic discs, the production of the previously known sanitary valve is associated with a not inconsiderable amount of effort.

A sanitary valve is already known from DE 102016 115 793 A1, which is built into a tap main body of a sanitary outlet fitting. The sanitary valve previously known from DE 102016 115 793 A1 has a water inlet part, a mixing chamber and a water outlet part, with cold water and hot water flowing into the water inlet part and being mixed in the mixing chamber in a predetermined ratio to mixed water, and with the mixed water exiting via the water outlet part. A water-saving valve is fastened between the mixing chamber and the water outlet part of the previously known sanitary valve, with a valve stem being arranged on the water-saving valve. Touching and sliding the valve stem opens the water saver valve to allow the mixed water to flow out of the water saver valve mixing chamber and continue to flow to the water outlet. The valve stem of the water saving valve is equipped with a Connected touch element, which is at least partially exposed outside of the faucet main body, so that the user can operate the touch element to touch and move the valve stem of the water saving valve. In this case, the contact element also has an actuating part which is inserted into the water outlet part of the previously known sanitary valve. When the contact element is pressed, it can be displaced in the longitudinal direction of the water outlet part, so that the operating part touches the valve stem of the water saving valve and thereby displaces it. The touch-operable sanitary valve further includes a resetting device that automatically resets the touching element when pressure applied to the touching element is released.

The object is to create a compact sanitary valve of the type mentioned that can be produced with little effort, which can be opened and closed by a simple pressing or touching movement, and which allows a gradual volume regulation of the fluid flowing through or a continuous mixing of the different fluid inlets incoming liquids allowed.

The solution to this problem according to the invention consists in the sanitary valve of the type mentioned in particular in that the main valve and the pilot valve are provided inside the housing of an inner housing, which inner housing is mounted in an outer housing such that it can rotate about an axis of rotation, so that the outer housing and the inner housing are assigned to one another in pairs Have valve openings, of which a first pair of valve openings arranged coaxially to the axis of rotation is designed as a valve outlet and at least a second pair of valve openings on the outside with respect to the axis of rotation is provided as at least one valve inlet, which has at least a second pair of valve openings corresponding to The rotational position between the outer and inner housing can be brought into congruence in such a way that the clear opening cross section of the at least one valve inlet that remains free by overlapping this at least one second pair of valve openings can be changed.

The sanitary valve according to the invention has a main valve which has a movable membrane as the valve body. The sanitary valve according to the invention 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 membrane can be predetermined by the position of a valve tappet, which is connected to a push-push mechanism. Such push-push mechanisms are already known as rotary/locking or ballpoint pen mechanisms and allow the valve tappet to be adjusted between the open position and the closed position of the main valve by a simple manual pressing or touching movement. With the aid of this push-push mechanism, which is known per se, the valve tappet can be switched between a switching position corresponding to the open position and a switching position corresponding to the closed position. In order to be able to vary the amount of fluid flowing through the main valve when it is in the open position or to be able to continuously mix the liquids flowing into the main valve from different fluid inlets, for example hot and cold water, the main valve and the pilot valve are inside the housing of an inner housing provided, which inner housing is rotatably mounted in an outer housing about an axis of rotation. The outer housing and the inner housing have valve openings assigned to one another in pairs, of which a first pair of valve openings arranged coaxially to the axis of rotation is designed as a valve outlet and at least a second pair of valve openings on the outside with respect to the axis of rotation is provided as a valve inlet. The valve openings of the at least one pair of valve openings provided as the valve inlet, which are assigned to one another and are provided on the one hand in the inner housing and on the other hand in the outer housing, can be brought into alignment according to the rotational position between the outer and inner housing in such a way that the overlapping of this at least one second pair of valve openings remaining free clear opening cross section of the at least one valve inlet can be changed. Thus, the at least one valve opening provided in the inner housing can, on the one hand, be more or less congruent with the valve opening assigned to it and located in the outer housing of the at least one second pair of valve openings forming at least one valve inlet, on the other hand, in such a way that the remaining free opening cross section of these valve openings has a larger or also a smaller amount of fluid can pass to the main valve. Since the valve openings of the first pair of valve openings forming the valve outlet of the main valve are arranged coaxially to the axis of rotation between the outer housing and inner housing and thus in the axis of rotation, the opening cross section of the valve outlet kept free by these preferably circular valve openings can also remain unchanged. The sanitary valve according to the invention designed as a closing and control valve or vario valve or as a closing and mixing valve can be produced from a reduced number of simply designed components and is characterized by a compact design.

The simple construction and production of the sanitary fitting according to the invention is favored if the outer housing and/or the inner housing have a pot-shaped lower housing part. It is advantageous if the lower housing part of the inner housing is rotatably mounted in the lower housing part of the outer housing.

A preferred embodiment according to the invention provides that the valve openings of the outer housing and/or the inner housing is/are arranged on the pot bottom of the lower housing part/lower housing parts. If the valve openings of the outer housing and/or the inner housing are arranged on the pot bottom of the lower housing part, it is free to place a valve tappet in the front end area of the outer housing and/or the inner housing that faces away from the lower housing part(s) and/or the inner housing / or to provide a control connection standing actuating element.

In order to secure the sanitary valve according to the invention against leaks and leakage flows in the area of the valve openings forming the valve outlet, it is advantageous if at least one first ring seal is provided between the outer housing and the inner housing, which first ring seal is in the ring zone between the first valve openings and the second valve openings is arranged. In this way, a tight separation between the valve inlet and the valve outlet is also achieved in the area of the outer or inner housing that rests rotatably on one another.

Effective sealing and separation of the valve outlet from the at least one valve inlet is further promoted if the at least one first ring seal is designed as a sealing ring and in particular as an X-ring sealing ring. If the sealing ring is designed as an X-ring sealing ring, this sealing ring has an essentially X-shaped ring cross-section. Alternatively, the first ring seal can also be designed as a lip seal. In order to seal the separation zone between the outer housing and its lower housing part on the one hand and the inner housing and its lower housing part on the other hand in a liquid-tight manner to the outside, it is advantageous if at least one second ring seal is provided between the outer housing and the inner housing, which is in the opposite Valve openings outer ring and / or peripheral zone of the outer and inner housing is arranged.

A further embodiment according to the invention provides that the first and/or the second ring seal have a circular outer contour, the center point of which is arranged in the axis of rotation. If the first ring seal and/or the second ring seal have a circular outer contour and if the center point of these ring seals is arranged in the axis of rotation, unwanted shearing forces on the ring seal, which could lead to leaks over time, are avoided when the outer housing and inner housing are rotated relative to each other.

A preferred further development according to the invention provides that the cup bottom of the housing lower part of the inner housing is connected on the inside to a sleeve-shaped inlet connection, preferably in one piece, the free sleeve end area of which, which can be acted upon by the membrane in the closed position, forms the valve seat of the main valve.

In order to promote easy handling of the sanitary valve according to the invention, it is advantageous if the inner housing protrudes with a guide section over the outer housing, in which guide section of the inner housing a pushbutton that is in control and/or operative connection with the valve tappet is displaceably guided. The simple handling of the sanitary valve according to the invention is additionally promoted if the guide section of the inner housing is non-rotatably connected to its lower housing part and is designed as a rotatable actuating element for relative rotation of the outer and inner housing.

A preferred embodiment according to the invention provides that the valve seat of the main valve, which can be closed with the membrane, is arranged between the at least one valve inlet and the valve outlet, the membrane closing off a pressure chamber that can be filled from the at least one valve inlet, so that the membrane closes the valve seat in the closed position when the pressure chamber is filled and releases the valve seat in an open position when the pressure chamber is relieved.

So that the position of the membrane can be predetermined by the position of the valve tappet and so that the main valve can be controlled between its open position and its closed position with the aid of the pilot valve, it is advantageous if a relief opening on the membrane that opens into the at least one valve outlet can be closed with the valve tappet is.

Since the sanitary valve according to the invention does not require a cartridge unit consisting of two ceramic discs lying against one another, a preferred embodiment according to the invention that can be produced with little effort provides that at least the lower housing part of the outer housing and/or inner housing is/are made of plastic.

Advantageous exemplary embodiments of the sanitary valve according to the invention provide that this sanitary valve is used as a control and closing valve or is designed as a mixing and closing valve.

If the sanitary valve according to the invention is designed as a mixing and closing valve, it can be advantageous if the sanitary valve has two valve inlets which can be varied by rotating the outer and inner housing relative to one another such that the clear opening cross section of the at least one , the second pair of valve openings forming one valve inlet increases while that of the at least other second pair of valve openings forming another valve inlet decreases and vice versa.

In one embodiment of the invention, it can be provided that an upper housing part, in particular the upper housing part already described, and a lower housing part, in particular the lower housing part already described, of the outer housing are locked together. In this way, simple assembly can be achieved without additional connecting elements.

In one embodiment of the invention, it can alternatively or additionally be provided that an upper housing part, in particular the upper housing part already described, and a lower housing part, in particular the lower housing part already described, of the outer housing are braced against one another by an elastically deformable element . Manufacturing tolerances, in particular with regard to internal parts, can thus be compensated for. A combination with a snap-in connection is particularly favorable, since the snap-in connection can then be tightened after snapping in. The deformable element can, for example, be formed in one piece with the upper housing part and/or the lower housing part, in particular molded onto it. A number of individual parts can thus be reduced. Alternatively or additionally, the deformable element can also be formed separately from the housing parts. An optimal choice of material and/or interchangeability is/are thus achievable.

Further developments according to the invention result from the following description of the figures in conjunction with the claims and the drawing. The invention is described in more detail below using a preferred exemplary embodiment.

It shows:

1 shows a sanitary valve shown in a longitudinal section and designed here as a closing and control or vario valve with a main valve that has a movable membrane and with a pilot valve with which the main valve can be controlled between the open position shown here and a closed position, wherein the position of the membrane can be predetermined by the position of a valve tappet which 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,

2 shows the sanitary valve from FIG. 1, also in longitudinal section, in the closed position of its main valve, 3 shows the sanitary valve from FIGS. 1 and 2 in an exploded perspective individual representation with a view of the rear bottom view of its components,

4 shows the sanitary valve shown in FIGS. 1 to 3 in a likewise perspective individual representation with a view of the front or upper side of the components on the actuation side,

5 shows the sanitary valve from FIGS. 1 to 4 in a perspective view of its rear side,

6 shows the sanitary valve from FIGS. 1 to 5 in a perspective view with a view of the front or top side of the sanitary valve on the actuation side,

7 shows the housing lower part of an inner housing accommodating the main valve and the pilot valve in its housing interior in a top view of the housing interior,

8 shows the lower housing part of the inner housing from FIG. 7 in a perspective top view of the housing interior,

9 shows the inner housing from FIGS. 7 and 8 in a view from below or from the rear of the housing end face of the inner housing which faces an outer housing and is designed as a pot bottom, 10 shows the lower housing part of the inner housing shown in FIGS. 7 to 9 in a perspective rear or bottom view,

11 shows the lower housing part of an outer housing of the sanitary valve shown in FIGS. 1 to 6 in a top view of the housing interior,

FIG. 12 shows the lower housing part from FIG. 11 in a perspective top view with a view of the housing interior,

13 shows the lower housing part from FIGS. 11 and 12 in a plan view of the rear face of the sanitary valve,

14 shows the lower housing part from FIGS. 11 to 13 in a perspective view with a view of the rear face of the sanitary valve shown in FIGS. 1 to 6,

15 shows the rear end face of the sanitary valve shown in FIGS. 1 to 6, with the valve openings provided in the lower housing parts of the inner housing and the outer housing of a second pair of valve openings forming the valve inlet releasing only a small opening cross section, which at most allows a small flow through the sanitary valve shown here allows

16 shows the sanitary valve shown in FIGS. 1 to 6 in a plan view from the rear, with the valve openings provided in the lower housing parts and forming the valve inlet here being approximately central Keep the opening cross-section free, which corresponds to an average flow rate of the sanitary valve,

Fig. 17 shows the sanitary valve from Figures 1 to 6, with the valve openings provided in the housing lower parts of the outer housing and inner housing and forming the housing inlet covering each other practically completely, so that, compared to Figures 15 and 16, full flow through the here shown sanitary valve is possible,

Fig. 18 designed as a mixing and closing valve

Sanitary valve in a perspective view with a view of the valve inlets and outlets provided on the rear face of the sanitary valve,

19 shows the sanitary valve from FIG. 18 in one

Perspective view looking at its front,

20 shows the sanitary valve from FIGS. 18 and 19 in a side view,

21 shows the sanitary valve from FIGS. 18 to 20 in a plan view of its rear side having the valve inlets and outlets,

22 shows the sanitary valve from FIGS. 18 to 21 in an exploded perspective view of the rear of its components,

23 shows the sanitary valve from FIGS. 18 to 22 in a perspective individual representation with a view of the front of its components, 24 shows the sanitary valve from FIGS. 18 to 23 in an exploded representation of individual of its components with a view of the rear of these components,

25 shows the sanitary valve from FIGS. 18 to 24 in a perspective representation of individual of its components with a view of the front side of these components,

26 shows the sanitary valve from FIGS. 18 to 25 in a longitudinal section, the sanitary valve being shown here in the open position,

27 shows the sanitary valve from FIGS. 18 to 26, also in longitudinal section, in its closed position,

28 shows the sanitary valve from FIGS. 18 to 27 in an isometric view, with the sanitary valve being in its open position here,

29 shows the housing lower part of an inner housing of the sanitary valve shown in FIGS. 18 to 28 in a top view of the housing interior of the pot-shaped housing lower part,

30 shows the lower housing part from FIG. 29 in a perspective view with a view of the housing interior,

31 shows the lower housing part from FIGS. 29 and 30 in a plan view of the rear of this lower housing part, 32 shows the lower housing part from FIGS. 29 to 31 in a perspective view looking at the rear of this lower housing part,

33 shows a lower housing part of an outer housing of the sanitary valve shown in FIGS. 18 to 28 in a top view of the housing interior of this lower housing part,

34 shows the lower housing part from FIG. 33 in a perspective representation with a view of the housing interior of this lower housing part,

35 shows the lower housing part from FIGS. 33 and 34 in a plan view from the rear,

36 shows the lower housing part from FIGS. 33 to 35 in a perspective representation with a view of the rear end face of this lower housing part,

37 shows the lower housing parts guided in one another so that they can be rotated according to FIGS keeps the clear cross-section free, while the pair of valve openings forming the other valve inlet releases a comparatively large clear flow cross-section,

38 shows the lower housing parts of the outer housing and inner housing, which are guided so that they can be rotated into one another, in a rotational position, in which rotational position the Lower housing parts keep the two pairs of valve openings, each forming a valve inlet, clear with an approximately comparably large clear flow cross section, and

Fig. 39 shows the lower housing parts of the outer housing and inner housing that are guided so as to be rotatable in one another, in a rotary position, with the rotary position shown here--compared to the rotary position in FIG the clear flow cross section kept free by the other pair of valve openings forming a further valve inlet is now significantly larger in comparison.

In the figures 1 to 6 and 18 to 28 two versions 1, 101 of a sanitary valve are shown, which is used to open and close a water pipe and which can be installed, for example, in the fitting body of a sanitary outlet fitting. While the sanitary valve 1 shown in FIGS. 1 to 6 serves as a control and closing valve, the sanitary valve shown in FIGS. 18 to 28 is

101, on the other hand, is designed as a mixing and closing valve. The sanitary valves 1, 101 shown here have a main valve 2,

102, which has a movable membrane 3, 103 as a valve body. The sanitary valve 1, 101 also has a pilot valve 4,

104, with which the main valve 2, 102 can be controlled between an open position and a closed position. The position of the membrane 3, 103 can be predetermined by the position of a valve tappet 5, 105, which is connected to a push-push mechanism 6, 106. This push-push mechanism 6, 106 can be designed as a rotary/locking mechanism or as a ballpoint pen mechanism and allows the Valve tappet 5, 105 at least between the open position and the closed position of the main valve 2, 102 each by a simple manual pressure or touch movement. With the help of this push-push mechanism 6, 106, the valve tappet 5, 105 can be switched between the switch position of the main valve 2, 102 corresponding to the open position and shown in Figures 1, 26 and 18 and a switch position corresponding to the closed position and shown in Figures 2 and 27 switching position can be switched.

In order to be able to vary the amount of fluid flowing through there when the main valve 2, 102 is in the open position and to be able to adjust it manually, or to mix the liquids flowing in via two liquid inlets (not shown here), for example hot and cold water, in the main valve 102 and to vary their proportions can, the main valve 2, 102 and the pilot valve 4, 104 are provided inside an inner housing 7, 107, which inner housing 7, 107 is rotatably mounted about an axis of rotation L in an outer housing 8, 108. The outer housing 8, 108 and the inner housing 7, 107 have valve openings 9, 10; 11, 12 and 109, 110, respectively; 111, 112 and 150, 151, of which a first pair of valve openings 9, 10; 109, 110 designed as a valve outlet 13, 113 and at least one second pair of valve openings 11, 12; 111, 112 and 150, 151 as at least one valve inlet 14; 114, 152 is provided. Here is the second pair of valve openings

II, 12 or 111, 112 and 150, 151 according to the

Rotational position between the outer and inner housing 8, 7; 108, 107 can be brought into or out of alignment in such a way that the valve openings 11, 12;

III, 112 and 150, 151 free clear opening cross-section of the valve inlet 14; 114, 152 is variable. Thus, the valve opening 11, 111 provided in the inner housing 7, 107, 150 with the associated valve opening 12, 112, 151 arranged in the outer housing 8, 108 of the at least one second pair of valve openings 11, 12 forming the valve inlet 14, 114 and 152; 111, 112, 150, 151 are more or less congruent in a stepless manner such that the remaining free opening cross-section of these valve openings 11, 12; 111, 112 and 150, 151 allows a larger or also a smaller amount of fluid to pass to the main valve 2, 102.

Since the valve openings 9, 10; 109,

110, which pair serves as the valve outlet 13, 113 of the main valve 2, 102, are arranged coaxially to the axis of rotation L between the outer housing 8, 108 and the inner housing 7, 107 and thus in the axis of rotation L, the valve openings 9, 10; 109, 110 free opening cross-section also remain unchanged. The sanitary valves 1, 101 according to FIGS. 1 to 17 and 18 to 39 can be produced from a reduced number of simply designed components and are characterized by a compact design.

As is particularly clear from Figures 1 and 2 or 26 to 28, the main valve 2, 102 of the sanitary valves 1, 101 is equipped with the movable membrane 3, 103, which consists of an elastic material and a valve body 15, 115 of the main valve 2 , 102 carries. The membrane 3, 103 can be controlled with the pilot valve 4, 104. For this purpose, the pilot valve 4, 104 has the longitudinally displaceable valve tappet 5, 105, the position of which along its travel determines the respective position of the valve body 15, 115 and thus of the membrane 3, 103.

The sanitary valve 1, 101 also has the push-push mechanism 6, 106. At this push-push mechanism 6, 106, a push button 16, 116 is formed on the outside, with which the push-push mechanism 6, 106 can be switched between different switching positions and in particular between the open position and the closed position of the main valve 2, 102 by repeated pressing. The push-push mechanism 6, 106 is in operative or control connection with the valve tappet 5, 105. The push-push mechanism 6, 106 has at least two switching states, corresponding to the open and the closed position, between which the valve tappet 5, 105 can be switched due to the operative connection.

A lower or outer switching position is shown in FIGS. 2 and 27, in which the main valve 2, 102 is closed and is thus in its closed position. In the figures 1 or 26 and 28, an upper or further outer switching position is shown, in which the main valve 2, 102 is fully open and is thus in its open position.

The pilot valve 4, 104 has a relief opening 17, 117 which is formed on the valve body 15, 115 and thus on the movable membrane 3, 103. If this relief opening 17, 117 is closed, a pressure builds up which presses the membrane 3, 103 with the valve body 15, 115 into a valve seat 18, 118 of the main valve 2, 102.

The main valve 2, 102 is then in its closed position.

If the relief opening 17, 117 is opened, the pressure mentioned is reduced, so that the membrane 3, 103 with the valve body 15, 115 is removed from the valve seat 18, 118. The main valve 2, 102 is thus opened.

Accordingly, FIGS. 1 and 2 and FIGS. 26 and 28 on the one hand and FIG form at least two switching positions of the main valve 2, 102, as can be specified by the push-push mechanism 6,106.

While FIGS. 1 and 26 and 28 show an outer switch position that defines an open position of pilot valve 4, 104, FIGS. 2 and 27 show a further outer switch position that defines a closed position of pilot valve 4, 104.

The main valve 2, 102 has the valve seat 18, 118, which can be closed tightly with the valve body 15, 115 and the membrane 3, 103. The valve seat 18, 118 is in

Flow direction between the valve inlet 14 or the valve inlets 114, 152 and the valve outlet 13, 113 is arranged. The main valve 2, 102 is therefore used to separate the valve inlets 14; 114, 152 and the valve outlet 13, 113 of the main valve 2, 102 provided in the sanitary valves 1, 101.

The membrane 3, 103 closes off a pressure chamber 19, 119, which is filled from the valve inlet 14 or the valve inlets 114, 152 via a filling opening in the membrane 3, 103 or its valve body, which is not easily recognizable here

15.115 can be filled. This filling opening is always open. This ensures that the membrane 3, 103 with the arranged on her valve body 15, 115 when filled

Pressure chamber 19, 119 in that shown in Figures 2 and 27

Closes the valve seat 18, 118 in the closed position of the sanitary valves 1, 101 and releases the valve seat 18, 118 when the pressure chamber 19, 119 is relieved in the open position of the sanitary valves 1, 101 shown in FIGS. As already mentioned above, the relief opening 17, 117 can be closed and opened with the valve tappet 5, 105. Since the relief opening 17, 117 opens into the valve outlet 13, 113, opening the relief opening 17, 117 leads to the already mentioned pressure reduction in the pressure chamber 19, 119 and thus to an opening of the main valve 2, 102 of the sanitary valves 1, 101. The For this purpose, relief opening 17, 117 is dimensioned larger than the filling opening mentioned above.

The valve tappet 5, 105 provided in the sanitary valves 1, 101 is coupled to the push-push mechanism 6, 106 via a control element 20, 120 in order to assume the switching positions already described. The control element 20, 120 is tightly inserted into the pressure chamber 19, 119 from the outside. In the

Active connection between the pilot valve 4, 104 and the push

Push mechanism 6, 106 is also a compensating device that allows actuation of push-push mechanism 6, 106 even when pilot valve 4, 104 is closed and cannot be moved any further against valve seat 18, 118.

In the individual representations according to Figures 3 and 4 or 22 and 23 it can be seen that the main valve 2, 102 of the sanitary valves 1, 101 also has a cleaning element 21, 121, which is designed to be resilient and has a pin-shaped free end 22, 122 here not further recognizable filling opening in the membrane 3, 103 or the valve body 15,115 penetrates and keeps free. The cleaning element 21, 121 is fixedly arranged in the inner housing 7, 107 with its other end.

A comparison of Figures 1 and 2 and 7 to 14 on the one hand and Figures 22, 23 and 26 to 36 on the other hand shows that the inner housing 7, 107 and the Outer housing 8, 108 each have a pot-shaped lower housing part 23, 24; 123, 124. The lower housing part 23, 123 of the inner housing 7, 107 is rotatably mounted in the lower housing part 24, 124 of the outer housing 8, 108. The valve openings 9, 10; 11, 12 and 109, 110, respectively; 111, 112 and 150, 151 of the inner housing 7, 107 and the outer housing 8, 108 are each on the pot bottom of the lower housing parts 23, 24; 123, 124 arranged. A first annular seal 25, 125 is provided between the outer housing 8, 108 and the inner housing 7, 107, which is in the annular zone between the first valve openings 9, 10; 109, 110 and the second valve openings 11, 12; 111,112 and 150,151. This first ring seal 25, 125 is designed here as a sealing ring and in particular as an X-ring sealing ring.

In Figures 1 and 2 and 26 to 28 it can be seen that between the outer housing 8, 108 and the inner housing 7, 107 at least one second ring seal 26, 126 is provided, which is in the opposite of the valve openings 9, 10; 11, 12 and 109, 110, respectively; 111, 112 and 150, 151 outer annular and/or peripheral zone of the inner and outer housing 7, 8; 107, 108 is arranged. Since the ring seals 25, 26; 125, 126 have a circular outer contour, the center point of which is arranged in the axis of rotation L, no undesirable shearing forces act on the ring seals 25, 26 when the inner housing 7, 107 and the outer housing 8, 108 rotate relative to each other. 125, 126, which could lead to increased wear and/or leaks.

It can be seen in FIGS. 1 and 2 and 26 to 28 that the first ring seal 25, 125 and also the second ring seal 26, 126 are each arranged in a groove 27, 153 in the lower housing part 23, 123 of the inner housing 7, 107. A comparison of Figures 1, 2 and 7 to 10 or Figures 26 to 28 and 29 to 30 makes it clear that the cup base of the lower housing part 23, 123 of the inner housing 7, 107 is integrally connected to a sleeve-shaped valve connector 28, 128 on the inside is whose freer

Sleeve end area the valve seat 18, 118 forms.

As also becomes clear in FIGS. 1 and 2 or 26 to 28, the inner housing 7, 107 projects with a guide section 29, 129 over the outer housing 8, 108. In this guide section 29, 129 of the inner housing 7, 107, the pushbutton 16, 116, which is in control or operative connection with the valve tappet 5, 105, is displaceably guided. Of the

The guide section 29, 129 of the inner housing 7, 107 is connected to its lower housing part 23, 123 and is designed here as a rotatable actuating element for rotating the outer housing 8, 108 and the inner housing 7, 107 in relation to one another. The outer housing 8, 108 encloses the inner housing 7, 107 with the exception of valve inlet 14, 114, 152, valve outlet 13,

113, 151 and guide section 29, 129 in a sub-area designed here as a cylindrical cross-sectional enlargement, which sub-area is delimited on both sides at its end faces with respect to the adjacent sections of the inner housing 7, 107 by annular shoulders. The lower housing part 24, 124 is preferably releasably connected to a housing upper part 30, 130, which is also pot-shaped here. At the rear end face of the housing lower part 24, 124 is at least one, here eccentrically arranged anti-rotation projection 31, 131 before the

Installation in the fitting body of a sanitary fitting not further shown here as the anti-rotation device of the sanitary valve 1, 101 attached to the outer housing 8, 108 with its im

Housing interior of the outer housing 8, 108 rotatable

Inner housing 7, 107 can serve. The pot-shaped upper housing part 30, 130 of the outer housing 8, 108 can be seen in the perspective individual representations according to FIGS having. In the area of this passage opening 32, 132, a corrugated pressure spring washer 33, 133 is inserted into the outer housing 8, 108, which holds the inner housing 7, 107 with its lower housing part 23, 123 in the lower housing part 24, 124 of the outer housing 8, 108 and against the second ring seal 26, 126 presses.

This compression spring washer 33, 133 can absorb manufacturing tolerances of the components and tension a latching connection 158 (cf. FIG. 27) between the upper housing part 30 and the lower housing part 24 of the outer housing 8.

Instead of the compression spring washer 33, 133, another elastically deformable element 159 can also be inserted, and/or elastically deformable elements can be integrally formed on the lower housing part 24 and/or the upper housing part 30.

Below the pressure spring disk 33, 133, the push button 16, 116 can be seen, on which a cap (not shown here) can also be releasably latched or the like, if necessary. A rotary cap 34, 134 of the push-push mechanism 6, 106 can be inserted into the sleeve-shaped pushbutton 16, 116, into which rotary cap 34, 134 the control element 20, 120 of the valve tappet 5, 105 projects. On the periphery of the rod-shaped control element 20, 120, a groove 35, 135 is provided, in which a clip 36, 136 can be used, the

Valve tappet 5, 105 and its control element 20, 120 captive, but slidable with the rotary cap 34, 134 connects. On the rotating cap 34, 134 and one therein pushed-in bushing 38, 138 acts as a return element 37, 137 designed as a compression spring. The housing upper part of the inner housing 7, 107 is constructed here in two parts and has an outer part 39, 139 carrying the guide section 29, 129, into which an inner part 40, 140 is inserted. The control element 20, 120 of the valve tappet 5, 105 is guided in a central guide opening in the inner part 40, 140, the control element 20, 120 being sealed in the guide opening by a sealing ring 41, 141. In the inner part 40, 140, the valve stem 5, 105 by means of a helical compression spring 42, 142 in the direction of

Membrane 3, 103 pressed. So that the valve tappet 5, 105 can seal the relief opening 17, 117 in the membrane 3, 103 tightly, it has a sealing cap 43, 143 on its end of the tappet facing the membrane 3, 103. Inside the lower housing part 23, 123 is the cleaning element 21, 121 designed as a compression spring with its end 22 protruding into the ventilation opening in the membrane 3, 103,

122 shown. The outer part 39, 139 of the inner housing 7,

107 has the guide section 29, 129, which has a profile formed by longitudinal grooves on its cylindrical outer circumference, on which profiled guide section 29, 129 a sleeve-shaped cap, not shown here, can be placed if required. Within the outer part 39, 139, the valve body 15, 115 can be seen, which is locked to a central fastening opening of the membrane 3, 103 or connected to the latter.

As is clear from FIGS. 1 to 4 or 22 to 23 and 26 to 28, the first and the second ring seal 25, 26 are each designed here as an X-ring sealing ring. In further exemplary embodiments, the ring seal 25 and/or the ring seal 26 is/are designed as a lip seal.

It can be seen in FIGS. 3 and 22 to 23 that the second pairs of valve openings 11, 12, 111, 112 and 150, 151 serving as valve inlet 14 or as valve inlets 114, 152 each have an opening outline that is curved in the circumferential direction and designed as a slot . A correspondingly curved ring seal 44, 144, 154 is held on the outside of the lower housing part 24, 124 of the outer housing 8, 108, which runs around the valve opening 12, 112, 151 on the outside. To the sanitary valve 1,

101 to be able to be used tightly in the fitting body of an outlet fitting not shown here, an annular seal 45, 145 is provided on the outer circumference of the lower housing part 24, 124 of the outer housing 8, 108.

From a comparison of Figures 15 to 17 and 37 to 39 it is clear that in the lower housing parts 23, 24; 123, 124 provided second pairs of valve ports 11, 12; 111,

112 and 150, 151 can be brought into alignment according to the rotational position between the outer housing 8, 108 and the inner housing 7, 107 guided rotatably therein in such a way that the valve openings 11, 12; 111, 112 formed clear opening cross section of the valve inlet 14; 114, 152 is variable.

The sanitary valve 1 according to Figures 1 to 17 forms a closing and control or vario valve, the main valve 2 of which can be opened and closed by pressing movements on the push button 16, while the flow rate flowing out of the sanitary valve 1 when the main valve 2 is in the open position can be adjusted by turning the profiled guide section 29 serving as an actuating element is adjustable. In contrast, the sanitary valve 101 according to Figures 18 to 39 is designed as a closing and mixing valve, the main valve 102 of which can also be opened and closed by pressing movements on the pushbutton 116 and in which the clear opening cross section at the valve inlets 114, 152 can be adjusted in such a way that by a rotational movement occurring at one valve inlet 114; 152 adjusting clear opening cross-section increases, while at the same time on the other valve inlet 152; 114 reduced free clear opening cross-section and vice versa. The valve inlets 114, 152 open into a common mixing chamber which is formed in the lower housing part 123 between the valve socket 128 and the inner circumference of the lower housing part 123. The liquid portions flowing in through the valve inlets 114, 152, for example hot and cold water, are mixed with one another in the mixing chamber of the lower housing part 123 and can flow out from there via the valve outlet 113 of the main valve 102 as mixed water. In order to limit the relative rotational movement between the inner housing 107 and the outer housing 108 in both directions of rotation, a rotary stop ring 155 can be placed on the profiled guide section 129, which has rotary stops 156 which interact with counter-stops 157 on the upper part 130 of the outer housing 108.

In each of the exemplary embodiments shown, an open design is formed, with the valve outlet 13, 113 being configured without a directly associated seal. A seal to the outside is achieved here by a sealing ring which is inserted into an outside groove on the lower part 24, 124 of the housing.

In further embodiments, a closed design is formed, in which the valve outlet 13, 113 with a sealing ring which passes between the valve outlet 13, 113 and the valve inlet 14. The seal on the outside of the lower housing part 24, 124 can then be omitted.

Since the sanitary valves 1, 101 shown here are characterized by a very small chain of tolerances in their dependent structural parts and components, the sanitary valves 1, 101 shown here have a high degree of repeatability in the volume or mixed variation.

/ List of References

Reference List

1 sanitary valve (according to figures 1 to 17)

2 main valve

3 membrane

4 pilot valve

5 valve lifters

6 push-push mechanics

7 inner casing

8 outer casing

9 valve opening (inside housing 7)

10 valve opening (in the outer housing 8)

11 valve opening (inside housing 7)

12 valve opening (in the outer housing 8)

13 valve outlet

14 valve inlet

15 valve bodies

16 push buttons

17 Relief Port

18 valve seat

19 pressure chamber

20 control

21 cleaning element

22 free end of the cleaning element 21

23 Housing lower part of the inner housing 7

24 Housing lower part of the outer housing 8

25 first ring seal

26 second ring seal

27 slots

28 valve sockets

29 guide section

30 Housing upper part of the outer housing 8

31 Anti-rotation tabs on outer case 8

32 passage opening

33 wave spring washer 34 twist cap

35 slots

36 clips

37 reset element

38 socket

39 outdoor part

40 inner part

41 sealing ring

42 screw pressure tedder

43 sealing hat

44 ring seal

45 ring seal

101 sanitary valve (according to Figures 18 to 39)

102 main valve

103 membrane

104 pilot valve

105 valve lifters

106 push-push mechanism

107 inner case

108 outer casing

109 valve opening (inside housing 107)

110 valve opening (in the outer housing 108)

111 valve opening (inside housing 107)

112 valve opening (in the outer housing 108)

113 valve outlet

114 (first) valve inlet

115 valve body

116 pushbuttons

117 relief opening

118 valve seat

119 pressure chamber

120 control

121 cleaning element

122 free end of the cleaning element 121

123 housing lower part of the inner housing 107 124 housing lower part of the outer housing 108

125 first ring seal

126 second ring seal

127 slots

128 valve stem

129 guide section

130 housing upper part of the outer housing 108

131 anti-rotation tabs on outer casing 108

132 passage opening

133 wavy spring washer

134 twist cap

135 slots

136 clips

137 reset element

138 socket

139 outdoor part

140 inner part

141 sealing ring

142 coil compression spring

143 sealing hat

144 ring seal

145 ring seal

150 valve opening (inside housing 107)

151 valve opening (in the outer housing 108)

152 (second) valve inlet

153 slots

154 ring seal

155 rotation stop ring

156 rotation stops (on rotation stop ring 155)

157 counterattacks

158 snap connection

159 elastically deformable element L axis of rotation

/ Expectations

Claims

Expectations

1. Sanitary valve (1, 101) with a main valve (2, 102) having a movable membrane (3, 103), and with a pilot valve (4, 104) with which the main valve (2, 102) between an open position and a closed position can be controlled, wherein the position of the membrane (3, 103) can be predetermined by the position of a valve tappet (5, 105) which is connected to a push-push mechanism (6, 106) with which (6, 106) the valve tappet (5, 105) can be switched between a switching position corresponding to the open position and a switching position corresponding to the closed position, characterized in that the main valve (2, 102) and the pilot valve (4, 104) are located inside an inner housing (7, 107) are provided, which inner housing (7, 107) is mounted in an outer housing (8, 108) so that it can rotate about an axis of rotation (L), that the outer housing (8, 108) and the inner housing (7, 107) have valve openings assigned to one another in pairs (9, 10; 11, 12; 109, 110; 111, 112; 150, 151), of which a first pair of valve openings (9, 10; 109, 110) as a valve outlet (13, 113) and at least one second pair of valve openings (11, 12; 111, 112; 150, 151) on the outside with respect to the axis of rotation (L) as at least one valve inlet (14; 114, 152 ) is provided, which at least a second pair of valve openings (11, 12; 111, 112; 150, 151) according to the rotational position between the outer and inner housing (8, 7; 108, 107) can be brought into alignment in such a way that the through Coverage of these second valve openings (11, 12; 111, 112; 150, 152) remaining free clear opening cross-section of the at least one valve inlet (14; 114, 152) is variable.

2. Sanitary valve according to claim 1, characterized in that the outer housing (8, 108) and/or the inner housing (7, 107) have a pot-shaped lower housing part (23, 24; 123, 124).

3. Sanitary valve according to claim 2, characterized in that the lower housing part (23, 123) of the inner housing (7,

107) in the lower housing part (24, 124) of the outer housing (8,

108) is rotatably mounted.

4. Sanitary valve according to Claim 2 or 3, characterized in that the valve openings (9, 10, 11, 12; 109, 110, 111, 112, 150, 151) of the outer housing (8, 108) and/or the inner housing (7th , 107) is/are arranged on the pot bottom of the lower housing part (24, 23; 124, 123)/the lower housing parts.

5. Sanitary valve according to one of Claims 1 to 4, characterized in that at least one first ring seal (25, 125) is provided between the outer housing (8, 108) and the inner housing (7, 107), which first ring seal (25, 125 ) is arranged in the annular zone between the first pair of valve openings (9, 10; 109,110) and the at least one second pair of valve openings (11, 12; 111, 112, 150, 151).

6. Sanitary valve according to one of claims 1 to 5, characterized in that between the outer housing (8, 108) and the inner housing (7, 107) at least one second ring seal (26, 126) is provided which is in the opposite of the valve openings ( 9, 10, 11, 12; 109, 110, 111, 112, 150, 151) in the outer annular and/or peripheral zone of the outer and inner housing (8, 7; 108, 107).

7. Sanitary valve according to one of claims 1 to 6, characterized in that the at least one first ring seal (25, 125) and/or the at least one second ring seal (26, 126) is designed as a sealing ring and in particular as an X-ring sealing ring /are.

8. Sanitary valve according to one of claims 5 to 7, characterized in that the first and / or the second ring seal (25, 26; 125, 126) have a circular outer contour, the center of which is in the axis of rotation

(L) is arranged.

9. Sanitary valve according to one of Claims 5 to 8, characterized in that the first and/or the second ring seal (25, 26; 125, 126) is/are located in a groove (27, 127,

153) is/are arranged in the lower housing part (23, 123) of the inner housing (7, 107) or the outer housing (8, 108).

10. Sanitary valve according to one of Claims 2 to 9, characterized in that the pot bottom of the housing lower part (23, 123) of the inner housing (7, 107) is preferably connected in one piece with a sleeve-shaped valve connection piece (28, 128), the free sleeves of which - End area forms the valve seat (18, 118).

11. Sanitary valve according to one of claims 1 to 10, characterized in that the inner housing (7, 107) projects with a guide section (29, 129) over the outer housing (8, 108), in which guide section (29, 129) of the inner housing (7, 107) a pushbutton (16, 116) which is in control and/or operative connection with the valve tappet (5, 105) is displaceably guided.

12. Sanitary valve according to claim 11, characterized in that the guide section (29, 129) of the inner housing (7, 107) is non-rotatably connected to its lower housing part (23, 123) and is designed as a rotatable actuating element for rotating the inner housing (7, 107) and outer housing (8, 108) relative to each other.

13. Sanitary valve according to one of claims 1 to 12, characterized in that between the at least one valve inlet (14, 114, 152) and the valve outlet (13,

113) the valve seat (18, 118) is arranged, which (18,

118) can be closed with the membrane (3, 103), the membrane (3, 103) closing off a pressure chamber (19, 119) which can be filled from the at least one valve inlet (14, 114, 152), so that the membrane (3, 103) when the pressure chamber (19, 119) is filled in a closed position

Valve seat (18, 118) closes and when the pressure chamber (19, 119) is relieved in an open position

Valve seat (18, 118) releases.

14. Sanitary valve according to one of Claims 1 to 13, characterized in that a relief opening (17, 117) opening into the at least one valve outlet (13, 113) on the membrane (3, 103) can be closed with the valve tappet (5, 105). is.

15. Sanitary valve according to one of claims 1 to 14, characterized in that at least the lower housing part (24, 23; 124, 123) of the outer housing (8, 108) and/or the inner housing (7, 107) is made of plastic /are.

16. Sanitary valve according to one of claims 1 to 15, characterized in that the sanitary valve is designed as a control and closing valve (1) or as a mixing and closing valve (101).

17. Sanitary valve according to one of Claims 1 to 16, characterized in that the sanitary valve (101) has two valve inlets (114, 152) whose pairs of valve openings (111, 112, 150, 152) forming the valve inlets (114, 152) are brought into coverage in such a way that by a

rotational movement of the inner and outer housing (107, 108), the clear opening cross section at one valve inlet (114, 152) can be enlarged, while the clear opening cross section at the other valve inlet (152,

114) decreases and vice versa.

18. Sanitary valve according to one of claims 1 to 17, characterized in that the or a housing upper part (30) and the or a housing lower part (24) of the outer housing (8, 108) latched together and / or by an elastically deformable Element (159) are braced against each other.

/ Summary