sanitary valves

Abstract

The present invention relates to a sanitary valve having a main valve and a pilot valve. The main valve has a diaphragm, and the pilot valve is used to control the main valve between an open position and a closed position. The position of the diaphragm is predetermined by the position of a valve tappet. The valve tappet is connected to a push-push mechanism, which can be used to switch the valve tappet. It is characterized in that the main valve and the pilot valve are arranged in the interior of an inner housing, and the inner housing is supported in an outer housing. They have valve openings assigned to each other in pairs. A first pair of valve openings arranged coaxially with the rotation axis is configured as a valve outlet, and a second pair of valve openings arranged externally relative to the rotation axis is configured as a valve inlet. The second pair of valve openings can overlap depending on the rotational position between the outer housing and the inner housing, so that the clear opening cross section of the valve inlet, which remains unobstructed due to the overlap of the second valve openings, can be changed. The technical effect of the sanitary valve is to allow for the graded adjustment of the fluid amount or to allow for the stepless mixing of liquids flowing in from different fluid inlets.

Description

Technical Field

[0001] The present invention relates to a sanitary valve comprising a main valve and a pilot valve, the main valve having a movable diaphragm, by means of which the main valve can be controlled between an open position and a closed position, wherein the position of the diaphragm can be predetermined by the position of a valve tappet, the valve tappet being connected to a push-push mechanism, by means of 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. Background Art

[0002] DE 10 2017 105 200.3 discloses a sanitary valve of the type mentioned above, which can be inserted into the water path of a water supply line for connection or switching. To this end, the known sanitary valve comprises a main valve, the valve inlet of which is connected to the inflow-side pipeline section, and the valve outlet of which is connected to the outflow-side section of the water path. The main valve has a movable diaphragm, which rests sealingly on the valve seat in the closed position of the main valve and releases the valve seat in the open position. The known sanitary valve also comprises a pilot valve, which can be used to control the main valve between an open position and a closed position. The position of the diaphragm can be predetermined by the position of a valve tappet, which is in control connection with a push-push mechanism, which can be used to switch the valve tappet 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 define intermediate positions in steps, in which the diaphragm is held at different distances from the valve seat, thereby releasing a reduced flow cross section compared to the open position. However, with known sanitary valves, it is not possible to continuously adjust the amount of water flowing through the main valve.

[0003] EP 3 561 351 A1 discloses a sanitary valve which can be integrated into a sanitary water outlet fitting as a mixing and shut-off device.

[0004] The sanitary valve known from EP 3561351 A1 comprises a valve housing, a valve unit with a shutoff control device for controlling a fluid flow rate and a mixing control device for controlling a fluid mixing ratio, a shutoff actuator, a mixing control device capable of rotational movement about a mixing rotation axis between a first mixing end position and a second mixing end position, an automatic return mechanism providing a return force for automatically returning the mixing control device to the first mixing end position, and a latching mechanism that snap-actionly couples the mixing control device to the valve housing. The latching force in the open position of the shutoff actuator is greater than the return force, and the latching force in the shutoff position is less than the return force. A cartridge unit is disposed within the valve housing of the sanitary valve known from EP 3561351 A1. The cartridge unit comprises a control disk and a distributor disk cooperating with the control disk, the distributor disk being made of ceramic. The valve unit can be moved between an open position and a closed position by actuating a pushbutton. To activate the mixing control device of the valve unit used in the known sanitary valve, the mixing control device can be rotated between the first mixing end position and the second mixing end position of the valve unit. As the mixing mechanism rotates from the first mixing end position toward the second mixing end position, the length of the coil spring element of the automatic reset mechanism, which acts as a tension spring, gradually increases. This coil spring element exerts a corresponding elastic reset force on the mixing mechanism in the direction of the first mixing end position. The first mixing end position can, for example, correspond to the cold water position, and the second mixing end position can correspond to the warm water or hot water position. Pure cold water or pure warm / hot water is then discharged at the water outlet of the known sanitary valve. In the intermediate position, mixed water, a mixture of cold water and warm / hot water, is provided at the water outlet.

[0005] Due to the multi-part design of the sanitary valve known from EP 3 561 351 A1 and due to the cartridge unit having a pair of ceramic disks, the production of the known sanitary valve involves considerable complexity.

[0006] DE 10 2016 11 5 793 A1 discloses a sanitary valve that is incorporated into the main valve body of a sanitary tap fitting. The sanitary valve disclosed in DE 10 2016 11 5 793 A1 comprises a water inlet, a mixing chamber, and a water outlet. Cold water and warm water flow into the water inlet and mix in the mixing chamber in a predetermined ratio with the mixed water, which is then discharged through the water outlet. A water-saving valve is secured between the mixing chamber and the water outlet of the known sanitary valve, with a valve stem disposed on the water-saving valve. The water-saving valve is opened by touching and pushing the valve stem, allowing the mixed water to flow from the mixing chamber of the water-saving valve and on to the water outlet. The valve stem of the water-saving valve is connected to a touch element that is at least partially exposed outside the faucet body, allowing a user to operate the touch element to touch and push the valve stem of the water-saving valve. The touch element also has an operating portion that is inserted into the water outlet of the known sanitary valve. If the touch element is pressed, it moves in the longitudinal direction of the water outflow portion, causing the operating portion to contact the valve stem of the water-saving valve and thereby displace the valve stem. The touch-operated sanitary valve also includes a reset device that automatically resets the touch element when the pressure applied to the touch element is released. Summary of the Invention

[0007] The object of the present invention is to provide a compact sanitary valve of the type mentioned at the outset that can be produced with little effort, which can be opened and closed by a simple pressing or touching movement and which allows a stepped quantity adjustment of the fluid flowing through or a stepless mixing of liquids flowing in from different fluid inlets.

[0008] The solution according to the invention to this object, in a sanitary valve of the type mentioned at the outset, consists in that the sanitary valve comprises a main valve and a pilot valve, the main valve having a movable diaphragm, the main valve being controllable between an open position and a closed position by means of the pilot valve, wherein the position of the diaphragm can be predetermined by the position of a valve tappet, the valve tappet being connected to a push-push mechanism, by means of 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. The invention is characterized in that the main valve and the pilot valve are arranged in a housing interior of an inner housing, the inner housing being rotatably mounted about a rotation axis in an outer housing, the outer housing and the inner housing having valve openings assigned to one another in pairs, wherein a first pair of valve openings arranged coaxially with respect to the rotation axis is designed as valve outlets, and at least one second pair of valve openings located outside with respect to the rotation axis is designed as at least one valve inlet, the at least one second pair of valve openings being able to overlap depending on the rotational position between the outer housing and the inner housing such that the clear opening cross section of the at least one valve inlet, which is kept free by the overlap of the at least one second pair of valve openings, is variable.

[0009] The sanitary valve according to the present invention includes a main valve having a movable diaphragm as a valve body. It also includes a pilot valve, which can be used to control the main valve between an open position and a closed position. The position of the diaphragm can be predetermined by the position of a valve tappet connected to a push-push mechanism. This push-push mechanism is known as a rotation / detent mechanism or a ballpoint pen mechanism and allows the valve tappet to be adjusted between the open and closed positions of the main valve by a simple manual pressing or touching motion. Using 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. To allow the amount of fluid flowing through the main valve in its open position to be varied as needed, or to enable continuous mixing of liquids, such as hot and cold water, flowing into the main valve from different fluid inlets, the main valve and the pilot valve are disposed within the interior of an inner housing, which is rotatably mounted about an axis of rotation in an outer housing. Here, the outer housing and the inner housing have valve openings assigned to one another in pairs, wherein a first pair of valve openings arranged coaxially to the rotation axis is designed as valve outlets and at least one second pair of valve openings located outside relative to the rotation axis is provided as valve inlet.

[0010] Here, the valve openings of the at least one pair of valve openings arranged as valve inlets, which are assigned to each other and are arranged in the inner housing (on the one hand) and in the outer housing (on the other hand), can overlap depending on the rotational position between the outer housing and the inner housing, such that the clear opening cross section of the at least one valve inlet, which is kept free by the overlap of the at least one second pair of valve openings, can be varied. Thus, the at least one valve opening arranged in the inner housing (on the one hand) and the valve opening of the at least one second pair of valve openings forming the at least one valve inlet, which is assigned to the at least one valve opening and is arranged in the outer housing (on the other hand), can overlap continuously, more or less, so that the clear opening cross sections of these valve openings allow for larger or smaller fluid quantities to be passed 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 with the axis of rotation between the outer housing and the inner housing, and therefore on the axis of rotation, the opening cross section of the valve outlet, which is kept free by these preferably circular valve openings, can also remain constant. The sanitary valve according to the invention, which is designed as a closing and regulating or variable valve or as a closing and mixing valve, can be produced from a reduced number of simply designed components and is distinguished by a compact construction.

[0011] A simple design and production of the sanitary fitting according to the invention is facilitated if the outer housing and / or the inner housing has a pot-shaped housing lower part.

[0012] In this case, it is advantageous if the housing lower part of the inner housing is rotatably mounted in the housing lower part of the outer housing.

[0013] According to a preferred embodiment of the invention, the valve opening of the outer housing and / or the inner housing is arranged on the pot bottom of the housing lower part. If the valve opening of the outer housing and / or the inner housing is arranged on the pot bottom of the housing lower part, an actuating element operatively and / or control-connected to the valve tappet can be provided on the end region of the outer housing and / or the inner housing facing away from the housing lower part.

[0014] To ensure that the sanitary valve according to the present invention does not leak and does not leak in the area of ​​the valve opening forming the valve outlet, it is advantageous to provide at least one first annular seal between the outer housing and the inner housing. This first annular seal is arranged in the annular region between the first valve opening and the second valve opening. In this way, a sealed separation between the valve inlet and the valve outlet is achieved in the area of ​​the outer housing and the inner housing, which are rotatably seated against each other.

[0015] If the at least one first annular seal is designed as a sealing ring, in particular an X-ring sealing ring, effective sealing and separation of the valve outlet from the at least one valve inlet is further promoted. If the sealing ring is designed as an X-ring sealing ring, it has a substantially X-shaped ring cross section.

[0016] In order to seal the separation area between the outer housing and its lower housing part on the one hand and between 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 annular seal is provided between the outer housing and the inner housing, which is arranged in an annular area and / or circumferential area of ​​the outer housing and the inner housing outside with respect to the valve opening.

[0017] According to an improved embodiment of the present invention, the first and / or second annular seal has a circular outer contour, the center point of which is arranged on the axis of rotation. If the first and / or second annular seal has a circular outer contour and the center point of these annular seals is arranged on the axis of rotation, undesirable shear forces acting on the annular seals during relative rotation of the outer housing and the inner housing are avoided, which shear forces could lead to leaks over time.

[0018] According to a preferred development of the invention, the pot bottom of the housing lower part of the inner housing is connected on the inside to a sleeve-shaped inlet connector, preferably in one piece, whose free sleeve end area, which can be acted upon by the diaphragm in the closed position, forms the valve seat of the main valve.

[0019] To facilitate simple operation of the sanitary valve according to the invention, it is advantageous if the inner housing projects beyond the outer housing with a guide section in which a pushbutton, which is in control and / or operative connection with the valve tappet, is displaceably guided.

[0020] Simple operation of the sanitary valve according to the invention is additionally facilitated if the guide section of the inner housing is connected to its housing lower part in a rotationally fixed manner and is designed as a rotatable actuating element for rotating the outer housing and the inner housing relative to each other.

[0021] According to a preferred embodiment of the present invention, a valve seat of a main valve is arranged between the at least one valve inlet and the valve outlet, and the valve seat can be closed by a diaphragm, wherein the diaphragm closes a pressure chamber that can be filled from the at least one valve inlet, so that the diaphragm closes the valve seat in a closed position when the pressure chamber is filled and releases the valve seat in an open position when the pressure chamber is unloaded.

[0022] In order that the position of the diaphragm can be predetermined by the position of the valve tappet and thus the main valve can be controlled between its open position and its closed position by means of the pilot valve, it is advantageous if a relief opening on the diaphragm leading into the at least one valve outlet can be closed by the valve tappet.

[0023] Since the cartridge unit consisting of two ceramic disks resting against each other can be omitted in the sanitary valve according to the invention, a preferred embodiment of the invention that can be manufactured at lower cost provides that at least the housing lower part of the outer housing and / or the inner housing is made of plastic.

[0024] An advantageous embodiment of the sanitary valve according to the invention provides that it is designed as a regulating and closing valve or as a mixing and closing valve.

[0025] If the sanitary valve according to the invention is configured as a mixing and closing valve, it may be advantageous if the sanitary valve has two valve inlets which can be changed by relative rotation of the outer housing and the inner housing, so that by relative rotation of the outer housing and the inner housing the clear opening cross section of at least one of the second pairs of valve openings forming one of the valve inlets is increased, while at least one further second pair of valve openings forming the further valve inlet is simultaneously reduced, and vice versa.

[0026] The improvements according to the present invention are apparent from the following description of the drawings in conjunction with the drawings. The present invention will be described in more detail below with reference to preferred exemplary embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings show:

[0028] Figure 1A sanitary valve, shown in longitudinal section and designed here as a closing and regulating or variable valve, is shown, comprising a main valve and a pilot valve, the main valve having a movable diaphragm, by means of which the main valve can be controlled between an open position and a closed position, wherein the position of the diaphragm can be predetermined by the position of a valve tappet, which is connected to a push-push mechanism, by means of 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.

[0029] Figure 2 Shown here also in longitudinal section Figure 1 The sanitary valve in the closed position of its main valve,

[0030] Figure 3 Shown in an exploded perspective detail view looking towards the back and underside of the sanitary valve component Figure 1 and Figure 2 Sanitary valves in

[0031] Figure 4 The same perspective detail view, looking towards the front or top side of the control side of the component, is shown in FIG. Figures 1 to 3 The sanitary valve shown in

[0032] Figure 5 Shown in a perspective view looking towards the back of the sanitary valve Figures 1 to 4 Sanitary valves in

[0033] Figure 6 Shown in a perspective view looking towards the front or top side of the sanitary valve Figures 1 to 5 Sanitary valves in

[0034] Figure 7 The housing lower part of the inner housing is shown in a top view of the housing interior, which accommodates the main valve and the pilot valve within the housing of the main valve.

[0035] Figure 8 A perspective top view of the housing interior is shown. Figure 7 The lower housing part of the inner housing,

[0036] Figure 9 Shown in a bottom or rear view looking towards the housing end side of the inner housing that faces the outer housing and is configured as a tank bottom Figure 7 and Figure 8 Inner shell,

[0037] Figure 10 Shown in perspective rear or bottom view Figures 7 to 9 The housing lower part of the inner housing is shown in

[0038] Figure 11 The top view of the interior of the housing is shown in Figures 1 to 6The lower housing part of the outer housing of the sanitary valve shown in

[0039] Figure 12 Shown in a perspective top view looking into the housing interior Figure 11 The lower housing part,

[0040] Figure 13 Shown in a top view looking toward the back end face of the sanitary valve Figure 11 and Figure 12 The lower housing part,

[0041] Figure 14 Looking towards Figures 1 to 6 The perspective view of the back end face of the sanitary valve shown in FIG. Figures 11 to 13 The lower housing part,

[0042] Figure 15 Shown in Figures 1 to 6 The back end face of the sanitary valve shown in FIG, wherein the valve openings of the second pair of valve openings forming the valve inlet, which are arranged in the housing lower parts of the inner housing and the outer housing, release only a small opening cross section, which allows at most a small flow rate through the sanitary valve shown here,

[0043] Figure 16 Shown in a top view from the back Figures 1 to 6 The sanitary valve shown in FIG, wherein the valve opening arranged in the housing lower part and forming the valve inlet leaves an approximately central opening cross section free, which corresponds to the central flow rate of the sanitary valve,

[0044] Figure 17 Show Figures 1 to 6 The sanitary valve in the embodiment of the present invention is characterized in that the valve openings arranged in the housing lower part of the outer housing and the inner housing and forming the housing inlet are practically completely overlapped, so that the sanitary valve shown here can be used relative to Figure 15 and Figure 16 To achieve all the traffic,

[0045] Figure 18 A sanitary valve configured as a mixing and closing valve is shown in a perspective view towards a valve inlet and a valve outlet arranged on the rear end side of the sanitary valve.

[0046] Figure 19 Shown in a perspective view looking towards the front of the sanitary valve Figure 18 Sanitary valves in

[0047] Figure 20 Shown in side view Figure 18 and Figure 19 Sanitary valves in

[0048] Figure 21Shown in a top view looking towards the back side of the sanitary valve with the valve inlet and valve outlet Figures 18 to 20 Sanitary valves in

[0049] Figure 22 Shown in exploded perspective detail looking towards the back of the sanitary valve component Figures 18 to 21 Sanitary valves in

[0050] Figure 23 Shown in perspective detail looking towards the front of the sanitary valve component Figures 18 to 22 Sanitary valves in

[0051] Figure 24 The exploded view of the sanitary valve components is shown looking towards the back of the sanitary valve components. Figures 18 to 23 Sanitary valves in

[0052] Figure 25 The perspective view of the various components of the sanitary valve looking toward the front side of the sanitary valve component is shown. Figures 18 to 24 Sanitary valves in

[0053] Figure 26 Shown in longitudinal section Figures 18 to 25 wherein the sanitary valve is shown in the open position,

[0054] Figure 27 Shown in sanitary valve closed position Figures 18 to 26 The sanitary valve in this case is also cut longitudinally,

[0055] Figure 28 Shown in isometric view Figures 18 to 27 The sanitary valve in the embodiment of the present invention is in its open position.

[0056] Figure 29 A top view of the housing interior of the pot-shaped housing lower part is shown in FIG. Figures 18 to 28 The lower housing part of the inner housing of the sanitary valve shown in

[0057] Figure 30 Shown in a perspective view looking into the interior of the housing Figure 29 The lower housing part,

[0058] Figure 31 The top view toward the rear of the housing lower part shows Figure 29 and Figure 30 The lower housing part,

[0059] Figure 32 The perspective view toward the rear of the housing lower part shows Figures 29 to 31 The lower housing part,

[0060] Figure 33The top view of the housing interior of the housing lower part is shown in FIG. Figures 18 to 28 The lower housing part of the outer housing of the sanitary valve shown in

[0061] Figure 34 The housing interior is shown in a perspective view looking towards the housing lower part. Figure 33 The lower housing part,

[0062] Figure 35 Shown in a top view from the back Figure 33 and Figure 34 The lower housing part,

[0063] Figure 36 A perspective view of the rear end face of the housing lower part is shown. Figures 33 to 35 The lower housing part,

[0064] Figure 37 Showing the outer shell and inner shell Figures 29 to 32 or housing lower parts 33 to 36 that are rotatably inserted into each other, wherein the second pair of valve openings on the outside that respectively form the valve inlet overlap, so that one pair of valve openings keeps a relatively small clear cross section unobstructed, while the pair of valve openings that form the other valve inlet releases a relatively large clear flow cross section,

[0065] Figure 38 The housing lower part of the outer housing and the inner housing, which are rotatably inserted into one another, is shown in a rotational position in which two pairs of valve openings, each forming a valve inlet, keep approximately equally large clear flow cross sections free, and

[0066] Figure 39 The housing lower part of the outer housing and the inner housing, which are rotatably inserted into each other, is shown in a rotational position, wherein in the rotational position shown here (with Figure 37 The pair of valve openings forming the valve inlet now maintains a relatively small clear flow cross section, whereas the clear flow cross section maintained open by the other pair of valve openings forming the other valve inlet is now significantly larger. DETAILED DESCRIPTION

[0067] exist Figures 1 to 6 and Figures 18 to 28 Two embodiments 1 and 101 of sanitary valves are shown, which are used to open and close water lines and which can be installed in fitting bodies of sanitary water outlet fittings, for example. Figures 1 to 6 The sanitary valve 1 shown in FIG is used as a regulating and closing valve, and Figures 18 to 28The sanitary valve 101 shown in the figure, in contrast, is constructed as a mixing and closing valve. The sanitary valve 1, 101 shown here has a main valve 2, 102, which has a movable diaphragm 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. Here, the position of the diaphragm 3, 103 can be predetermined by the position of the valve tappet 5, 105 connected to a push-push mechanism 6, 106. The push-push mechanism 6, 106 can be constructed as a rotation / locking mechanism or as a ballpoint pen mechanism and allows the valve tappet 5, 105 to be adjusted at least between the open position and the closed position of the main valve 2, 102 by a simple manual pressing or touching movement. With the help of the push-push mechanism 6, 106, the valve tappet 5, 105 can be adjusted in the main valve 2, 102 corresponding to the open position and in the closed position. Figure 1 、 Figure 26 and Figure 18 The switching position shown in FIG and the corresponding closed position and in Figure 2 and Figure 27 Transitions between the switch positions shown.

[0068] In order to be able to change and manually adjust the amount of fluid flowing through the main valve 2, 102 in the open position when necessary or to be able to mix liquids flowing in through two liquid inlets (not shown here), such as hot water and cold water, in the main valve 102 and to change their proportions, the main valve 2, 102 and the pilot valve 4, 104 are arranged in the interior of the housing of the inner housing 7, 107, which is supported in the outer housing 8, 108 in a manner that allows rotation about the rotation axis L. Here, the outer housing 8, 108 and the inner housing 7, 107 have valve openings 9, 10; 11, 12 or 109, 110; 111, 112 and 150, 151 assigned to each other in pairs, of which a first pair of valve openings 9, 10; 109, 110 arranged coaxially with the axis of rotation is constructed as a valve outlet 13, 113, and at least one second pair of valve openings 11, 12; 111, 112 and 150, 151 located outside relative to the axis of rotation L is arranged as at least one valve inlet 14; 114, 152. Here, the second pair of valve openings 11, 12 or 111, 112 and 150, 151 enter into overlap or disengage overlap depending on the rotational position between the outer shell 8 and the inner shell 7; 108, 107, so that the net opening cross-section of the valve inlet 14; 114, 152 that remains unobstructed through the overlap of the second pair of valve openings 11, 12; 111, 112 and 150, 151 is variable. Therefore, the valve openings 11, 111, 150 arranged in the inner housing 7, 107 can be more or less overlapped with the valve openings 12, 112, 151 assigned to at least one second pair of valve openings 11, 12; 111, 112, 150, 151 forming the valve inlet 14, 114 and 152 and arranged in the outer housing 8, 108 in a stepless manner, so that the unobstructed opening cross-sections of these valve openings 11, 12; 111, 112 and 150, 151 allow a larger or smaller amount of fluid to flow to the main valve 2, 102.

[0069] Since the first forming pair of valve openings 9, 10; 109, 110 (which serves as valve outlet 13, 113 of main valve 2, 102) is arranged coaxially with respect to the axis of rotation L between outer housing 8, 108 and inner housing 7, 107 and thus on the axis of rotation L, the opening cross section which is kept free by these valve openings 9, 10; 109, 110, which are circular here, also remains unchanged. Figures 1 to 17 and Figures 18 to 39 The sanitary valve 1 , 101 can be produced from a reduced number of simply designed components and is distinguished by a compact construction.

[0070] If especially by Figure 1 and Figure 2 or Figures 26 to 28As can be seen, the main valve 2, 102 of the sanitary valve 1, 101 is equipped with a movable diaphragm 3, 103, which is made of an elastic material and carries the valve body 15, 115 of the main valve 2, 102. The diaphragm 3, 103 can be controlled by means of a pilot valve 4, 104. To this end, the pilot valve 4, 104 has a longitudinally movable valve tappet 5, 105, the position of which, along its adjustment stroke, determines the corresponding position of the valve body 15, 115 and, therefore, the corresponding position of the diaphragm 3, 103.

[0071] The sanitary valve 1, 101 also has a push-push mechanism 6, 106. A button 16, 116 is formed on the outside of the push-push mechanism 6, 106, which can be used to switch between different switching positions, particularly 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 an 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 position and the closed position, between which the valve tappet 5, 105 can be switched due to the operative connection.

[0072] exist Figure 2 and Figure 27 The lower or outer switching position is shown in FIG, in which the main valve 2, 102 is closed and is therefore in its closed position. Figure 1 or Figure 26 and Figure 28 , the upper or further outer switching position is shown in , in which the main valve 2 , 102 is completely open and is therefore in its open position.

[0073] 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 diaphragm 3, 103. If this relief opening 17, 117 is closed, a pressure builds up, which presses the diaphragm 3, 103 and the valve body 15, 115 into the valve seat 18, 118 of the main valve 2, 102. The main valve 2, 102 is then in its closed position.

[0074] If the relief opening 17, 117 is opened, the pressure drops, so that the diaphragm 3, 103 and the valve body 15, 115 move away from the valve seat 18, 118. The main valve 2, 102 is thus opened.

[0075] Accordingly, Figure 1 and Figure 2 as well as Figure 26 and Figure 28 (On the one hand) and Figure 27(On the other hand) different positions of the valve tappet 5 , 105 of the sanitary valve 1 , 101 are shown, which each form one of the at least two switching positions of the main valve 2 , 102 , as can be predetermined by the push-push mechanism 6 , 106 .

[0076] exist Figure 1 or Figure 26 and Figure 28 The switching position of the outside that defines the open position of the pilot valve 4, 104 is shown in FIG. Figure 2 and Figure 27 , further outer switching positions are shown which define the closed position of the pilot valve 4 , 104 .

[0077] The main valve 2, 102 has a valve seat 18, 118 that can be sealed tightly by the valve body 15, 115 and the diaphragm 3, 103. The valve seat 18, 118 is arranged in the flow direction between the valve inlet 14 or the valve inlets 114, 152 and the valve outlet 13, 113. The main valve 2, 102 is therefore used to separate the valve inlet 14, 114, 152 and the valve outlet 13, 113 of the main valve 2, 102 arranged in the sanitary valve 1, 101.

[0078] The diaphragm 3, 103 closes the pressure chamber 19, 119, which can be filled from one valve inlet 14 or multiple valve inlets 114, 152 via a filling opening (not easily visible here) in the diaphragm 3, 103 or its valve body 15, 115. The filling opening is always open. This ensures that the diaphragm 3, 103 and the valve body 15, 115 arranged on it are in a closed position when the pressure chamber 19, 119 is filled. Figure 2 and Figure 27 In the closed position shown in FIG, the valve seat 18, 118 is closed and the pressure chamber 19, 119 is relieved when the sanitary valve 1, 101 is in the closed position. Figure 1 or Figure 26 and Figure 28 In the open position shown in FIG, the valve seats 18, 118 are open.

[0079] As already mentioned above, the relief opening 17, 117 can be closed and released by means of 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 aforementioned pressure drop in the pressure chamber 19, 119 and thus to an opening of the main valve 2, 102 of the sanitary valve 1, 101. For this purpose, the relief opening 17, 117 is larger than the aforementioned filling opening.

[0080] The valve tappet 5, 105 provided in the sanitary valve 1, 101 is coupled to the push-push mechanism 6, 106 via a control element 20, 120 to assume the switching position already described. The control element 20, 120 is introduced into the pressure chamber 19, 119 from the outside in a sealed manner. Furthermore, a compensating device is provided in the operative connection between the pilot valve 4, 104 and the push-push mechanism 6, 106, which allows the push-push mechanism 6, 106 to be actuated even when the pilot valve 4, 104 is closed and cannot move further toward the valve seat 18, 118.

[0081] In accordance with Figure 3 and Figure 4 or Figure 22 and Figure 23 As can be seen in the detailed view of the hygienic valve 1, 101, the main valve 2, 102 also has a cleaning element 21, 121, which is designed to be elastically flexible and passes through a filling opening (not further visible here) in the diaphragm 3, 103 or its valve body 15, 115 with a pin-shaped free end 22, 122 and keeps the filling opening unobstructed. The other end of the cleaning element 21, 121 is fixedly arranged in the inner housing 7, 107.

[0082] Depend on Figure 1 and Figure 2 as well as Figures 7 to 14 (On the one hand) Figure 22 、 Figure 23 and Figures 26 to 36 A comparison (on the other hand) shows that the inner housing 7, 107 and the outer housing 8, 108 each have a pot-shaped housing lower part 23, 24; 123, 124. The housing lower part 23, 123 of the inner housing 7, 107 is rotatably mounted in the housing lower part 24, 124 of the outer housing 8, 108. The valve openings 9, 10, 11, 12 and 109, 110, 111, 112 and 150, 151 of the inner housing 7, 107 and the outer housing 8, 108 are each arranged on the pot bottom of the housing lower part 23, 24; 123, 124. A first annular seal 25, 125 is provided between the outer housing 8, 108 and the inner housing 7, 107. It is arranged in the annular region between the first valve opening 9, 10, 109, 110 and the second valve opening 11, 12, 111, 112 and 150, 151. The first annular seal 25 , 125 is designed here as a sealing ring and in particular as an X-ring sealing ring.

[0083] exist Figure 1 and Figure 2As can be seen in Figures 26 to 28, at least one second annular seal 26, 126 is provided between the outer housing 8, 108 and the inner housing 7, 107. This second annular seal is arranged in an annular and / or circumferential region of the inner and outer housings 7, 8; 107, 108, which is located outside the valve openings 9, 10; 11, 12 or 109, 110; 111, 112 and 150, 151. Because the annular seals 25, 26; 125, 126 have a circular outer contour, the center point of which is arranged on the axis of rotation L, no undesirable shear forces act on the annular seals 25, 26; 125, 126 during relative rotation of the inner housing 7, 107 and the outer housing 8, 108, which could lead to increased wear and / or leaks.

[0084] from Figure 1 and Figure 2 As can be seen in Figures 26 to 28 , the first annular seal 25 , 125 and the second annular seal 26 , 126 are each arranged in a groove 27 , 153 in the housing lower part 23 , 123 of the inner housing 7 , 107 .

[0085] Depend on Figure 1 、 Figure 2 and Figures 7 to 10 or Figures 26 to 28 and Figures 29 to 30 It is clear that the pot bottom of the housing lower part 23 , 123 of the inner housing 7 , 107 is integrally connected on the inside to a sleeve-shaped valve connecting piece 28 , 128 , the free sleeve end region of which forms the valve seat 18 , 118 .

[0086] As in Figure 1 and Figure 2 or Figures 26 to 28As is also clear from the figure, the inner housing 7, 107 projects beyond the outer housing 8, 108 by means of a guide section 29, 129. The pushbutton 16, 116, which is in control or operative connection with the valve tappet 5, 105, is displaceably guided in this guide section 29, 129 of the inner housing 7, 107. The guide section 29, 129 of the inner housing 7, 107 is connected to its housing lower part 23, 123 and is designed as a rotatable actuating element for rotating the outer housing 8, 108 and the inner housing 7, 107 relative to each other. The outer housing 8, 108 surrounds the inner housing 7, 107, except for the valve inlet 14, 114, 152, the valve outlet 13, 113, 151, and the guide section 29, 129, which are bounded on both sides by an annular shoulder on their end faces relative to adjacent sections of the inner housing 7, 107. The housing lower part 24, 124 is preferably detachably connected to the housing upper part 30, 130, which is also pot-shaped here. At least one anti-rotation projection 31, 131, which is arranged eccentrically here, protrudes from the rear end face of the housing lower part 24, 124. When installed in a fitting body of a sanitary fitting (not shown in detail here), the anti-rotation projection can serve as an anti-rotation device for the sanitary valve 1, 101, which is attached to the outer housing 8, 108 and has its inner housing 7, 107 rotatable in the housing interior of the outer housing 8, 108.

[0087] In accordance with Figure 3 and Figure 4 or Figure 22 and Figure 23The perspective detail view of the outer housing 8, 108 shows the pot-shaped upper housing part 30, 130, which has a central through-hole 32, 132 in the region of its pot bottom for the guide section 29, 129 of the inner housing 7, 107. A corrugated compression spring disk 33, 133 is inserted into the outer housing 8, 108 in the region of this through-hole 32, 132. This compression spring disk presses the inner housing 7, 107 with its housing lower part 23, 123 into the housing lower part 24, 124 of the outer housing 8, 108 and against the second annular seal 26, 126. The push button 16, 116 can be seen below the compression spring disk 33, 133, onto which a cover (not shown in further detail) can optionally be snapped in a releasable manner or similarly placed. The rotary cap 34, 134 of the push-push mechanism 6, 106 can be inserted into the sleeve-shaped push button 16, 116, into which the control element 20, 120 of the valve tappet 5, 105 projects. A groove 35, 135 is provided on the circumference of the rod-shaped control element 20, 120, into which a clip 36, 136 can be inserted. The clip capably connects the valve tappet 5, 105 and its control element 20, 120 to the rotary cap 34, 134, but movably. A restoring element 37, 137, designed as a compression spring, acts on the rotary cap 34, 134 and a bushing 38, 138 inserted into the rotary cap. The housing upper part of the inner housing 7, 107 is constructed in two parts and has an outer part 39, 139 that carries the guide section 29, 129 and into which the 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, wherein the control element 20, 120 is sealed in the guide opening by a sealing ring 41, 141. In the inner part 40, 140, the valve tappet 5, 105 is pressed toward the diaphragm 3, 103 by means of a helical compression spring 42, 142. To enable the valve tappet 5, 105 to seal the relief opening 17, 117 in the diaphragm 3, 103, the valve tappet has a sealing cap 43, 143 on its tappet end facing the diaphragm 3, 103. Inside the housing lower part 23, 123, a cleaning element 21, 121, designed as a compression spring, is shown. This cleaning element has its end 22, 122 protruding into the ventilation opening in the diaphragm 3, 103. The outer part 39, 139 of the inner housing 7, 107 has a guide section 29, 129, which has a profile formed by a longitudinal groove on its cylindrical outer circumference, and a sleeve-shaped cover (not shown in detail here) can be placed on this profiled guide section 29, 129 as required. The valve body 15, 115 can be seen in the outer part 39, 139, which is latched or similarly connected to the diaphragm 3, 103 at its central fastening opening.

[0088] As from Figures 1 to 4 or Figures 22 to 23 and Figures 26 to 28 As can be clearly seen in FIG, the first and second annular seals 25, 26 are each designed as an X-ring sealing ring. Figure 3 and Figures 22 to 23 As can be seen in the figure, the second pair of valve openings 11, 12, 111, 112 and 150, 151, serving as valve inlet 14 or valve inlets 114, 152, each have an opening profile that is curved in the circumferential direction and is configured as an elongated hole. Correspondingly curved annular seals 44, 144, 154 are held on the outer side of the housing lower part 24, 124 of the outer housing 8, 108, respectively, and surround the valve openings 12, 112, 151 on the outside. To enable sealing installation of the sanitary valve 1, 101 in a fitting body of a water outlet fitting (not shown in further detail), annular seals 45, 145 are provided on the outer circumference of the housing lower part 24, 124 of the outer housing 8, 108.

[0089] Depend on Figures 15 to 17 and Figures 37 to 39 It is relatively clear that the second pair of valve openings 11, 12; 111, 112 and 150, 151 arranged in the lower part of the shell 23, 24; 123, 124 can overlap according to the rotational position between the outer shell 8, 108 and the inner shell 7, 107 rotatably guided in the outer shell, so that the net opening cross section of the valve inlet 14; 114, 152 formed by the overlap of the second pair of valve openings 11, 12; 111, 112 is variable.

[0090] according to Figures 1 to 17 The sanitary valve 1 forms a closing and regulating or variable valve, whose main valve 2 can be opened and closed by a pressing movement on the button 16, while the flow rate out of the sanitary valve 1 in the open position of the main valve 2 can be set by rotating the molded guide section 29 serving as an actuating element.

[0091] In contrast, according to Figures 18 to 39The sanitary valve 101 is designed as a closing and mixing valve. Its main valve 102 can also be opened and closed by pressing a button 116. In this sanitary valve, the clear opening cross section at the valve inlets 114 and 152 can be adjusted. The clear opening cross section set at the valve inlet 114 and 152 is increased by the rotational movement, while the clear opening cross section remaining unobstructed at the other valve inlet 152 and 114 is simultaneously reduced, and vice versa. The valve inlets 114 and 152 open into a common mixing chamber formed in the housing lower part 123 between the valve connecting piece 128 and the housing inner circumference of the housing lower part 123. Liquid portions, such as hot water and cold water, flowing in through the valve inlets 114 and 152 mix in the mixing chamber of the housing lower part 123 and can then flow out as mixed water through the valve outlet 113 of the main valve 102. In order to limit the relative rotational movement between the inner housing 107 and the outer housing 108 in both rotational directions, a rotation stop ring 155 can be placed on the molded guide section 129 , which has a rotation stop 156 that interacts with a counter stop 157 on the housing upper part 130 of the outer housing 108 .

[0092] Since the sanitary valve 1 , 101 shown here is distinguished by the very tight tolerance chain of its relevant components and constituent parts, the sanitary valve 1 , 101 shown here has a high reproducibility with respect to volume changes or mixture changes.

[0093] Reference Signs List

[0094] 1 Sanitary valve (according to Figures 1 to 17 )

[0095] 2 Main valve

[0096] 3 Diaphragm

[0097] 4 pilot valve

[0098] 5-valve tappet

[0099] 6 Push-push mechanism

[0100] 7 Inner shell

[0101] 8 outer shell

[0102] 9 Valve opening (in inner housing 7)

[0103] 10 Valve opening (in outer housing 8)

[0104] 11 Valve opening (in inner housing 7)

[0105] 12 Valve opening (in outer housing 8)

[0106] 13 Valve outlet

[0107] 14 Valve inlet

[0108] 15 Valve body

[0109] 16 buttons

[0110] 17 Unloading opening

[0111] 18 valve seat

[0112] 19 Pressure Chamber

[0113] 20 control elements

[0114] 21 Cleaning Elements

[0115] 22 Free end of cleaning element 21

[0116] 23 Housing lower part of inner housing 7

[0117] 24 Housing lower part of outer housing 8

[0118] 25 First annular seal

[0119] 26 Second annular seal

[0120] 27 grooves

[0121] 28 valve pipe

[0122] 29 Boot Segment

[0123] 30 Housing upper part of outer housing 8

[0124] 31 Anti-rotation protrusion on the outer shell 8

[0125] 32 through holes

[0126] 33 Corrugated spring disc

[0127] 34 Rotating cover

[0128] 35 grooves

[0129] 36 card holder

[0130] 37 Reset element

[0131] 38 Bushing

[0132] 39 External parts

[0133] 40 Internal parts

[0134] 41 sealing ring

[0135] 42 Helical compression spring

[0136] 43 Sealing cap

[0137] 44 Ring seal

[0138] 45 Ring seal

[0139] 101 Sanitary valve (according to Figures 18 to 39 )

[0140] 102 Main valve

[0141] 103 Diaphragm

[0142] 104 pilot valve

[0143] 105 valve tappet

[0144] 106 Push-Push Mechanism

[0145] 107 inner shell

[0146] 108 outer shell

[0147] 109 valve opening (in inner housing 107)

[0148] 110 valve opening (in outer housing 108)

[0149] 111 Valve opening (in inner housing 107)

[0150] 112 valve opening (in outer housing 108)

[0151] 113 Valve outlet

[0152] 114 (First) Valve Inlet

[0153] 115 valve body

[0154] 116 buttons

[0155] 117 Unloading opening

[0156] 118 valve seat

[0157] 119 Pressure Chamber

[0158] 120 control elements

[0159] 121 Cleaning Elements

[0160] 122 Free end of cleaning element 121

[0161] 123 Housing lower part of inner housing 107

[0162] 124 Housing lower part of outer housing 108

[0163] 125 first annular seal

[0164] 126 Second annular seal

[0165] 127 grooves

[0166] 128 valve pipe

[0167] 129 Boot Segment

[0168] 130 Housing upper part of outer housing 108

[0169] 131 Anti-rotation protrusion on outer shell 108

[0170] 132 through holes

[0171] 133 Corrugated Spring Disc

[0172] 134 Rotating cover

[0173] 135 grooves

[0174] 136 Card Holder

[0175] 137 Reset element

[0176] 138 Bushing

[0177] 139 External parts

[0178] 140 internal parts

[0179] 141 sealing ring

[0180] 142 Helical compression spring

[0181] 143 Sealing Cap

[0182] 144 Ring seal

[0183] 145 Ring seal

[0184] 150 valve opening (in inner housing 107)

[0185] 151 valve opening (in outer housing 108)

[0186] 152 (Second) Valve Inlet

[0187] 153 grooves

[0188] 154 Ring seal

[0189] 155 Rotating stop ring

[0190] 156 rotation stop (on the rotation stop ring 155)

[0191] 157 Matching stop

[0192] L Rotation axis

Claims

1. A sanitary valve comprising a main valve (2, 102) and a pilot valve (4, 104), wherein the main valve has a movable diaphragm (3, 103) and the pilot valve can be used to control the main valve (2, 102) between an open position and a closed position, wherein: The position of the diaphragm (3, 103) can be predetermined by the position of the valve tappet (5, 105), the valve tappet is connected to a push-push mechanism (6, 106), by means of which 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, wherein the main valve (2, 102) and the pilot valve (4, 104) are arranged in the interior of the housing of an inner housing (7, 107), the inner housing (7, 107) is supported in an outer housing (8, 108) in a manner that allows it to rotate around an axis of rotation (L), the outer housing (8, 108) and the inner housing (7, 107) have valve openings assigned to each other in pairs, a first pair of valve openings (9, 10; 109, 110) of these valve openings being arranged coaxially with the axis of rotation (L) being configured as valve outlets (13, 113) and being rotatable relative to the axis of rotation (L). At least one second pair of valve openings (11, 12; 111, 112; 150, 151) with an axis (L) arranged outside is provided as at least one valve inlet (14; 114, 152), and the at least one second pair of valve openings (11, 12; 111, 112; 150, 151) can coincide with each other according to the rotational position between the outer shell (8, 108) and the inner shell (7, 107), so that the at least one valve inlet (14; 114, 152) can be overlapped. 2) The clear opening cross section that is kept free by the overlap of the at least one second pair of valve openings (11, 12; 111, 112; 150, 151) is variable, characterized in that the outer housing (8, 108) has a pot-shaped housing lower part (24, 124), and the valve openings (10, 12; 110, 112, 151) of the outer housing (8, 108) are arranged on the pot bottom of the housing lower part (24, 124).

2. The sanitary valve according to claim 1, characterized in that The inner housing (7, 107) has a pot-shaped housing lower part.

3. The sanitary valve according to claim 2, characterized in that The housing lower part (23, 123) of the inner housing (7, 107) is rotatably supported in the housing lower part (24, 124) of the outer housing (8, 108).

4. The sanitary valve according to claim 2 or 3, characterized in that: The valve openings of the inner housing (7, 107) are arranged on the tank bottom of the housing lower part.

5. The sanitary valve according to any one of claims 1 to 3, characterized in that At least one first annular seal (25, 125) is provided between the outer housing (8, 108) and the inner housing (7, 107), the first annular seal (25, 125) being arranged in an annular region 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. The sanitary valve according to claim 5, characterized in that At least one second annular seal (26, 126) is provided between the outer housing (8, 108) and the inner housing (7, 107), which is arranged in an annular region and / or circumferential region of the outer housing (8, 108) and the inner housing (7, 107) outside the valve openings.

7. The sanitary valve according to claim 6, characterized in that The at least one first annular seal (25, 125) and / or the at least one second annular seal (26, 126) are configured as sealing rings.

8. The sanitary valve according to claim 6 or 7, characterized in that: The first annular seal (25, 125) and / or the second annular seal (26, 126) has a circular outer contour, the center point of which is arranged on the rotation axis (L).

9. The sanitary valve according to claim 6 or 7, characterized in that: The first annular seal (25, 125) and / or the second annular seal (26, 126) are arranged in a groove (27, 127, 153) in the housing lower part of the outer housing (8, 108).

10. The sanitary valve according to claim 2 or 3, characterized in that: The pot bottom of the housing lower part (23, 123) of the inner housing (7, 107) is connected to a sleeve-shaped valve connecting piece (28, 128), the free sleeve end area of ​​which forms the valve seat (18, 118).

11. The sanitary valve according to any one of claims 1 to 3, characterized in that The inner housing (7, 107) protrudes from the outer housing (8, 108) with a guide section (29, 129), and a button (16, 116) in control connection and / or functional connection with the valve tappet (5, 105) is movably guided in the guide section (29, 129) of the inner housing (7, 107).

12. The sanitary valve according to claim 11, characterized in that The guide section (29, 129) of the inner housing (7, 107) is connected to the housing lower part (23, 123) of the inner housing in a rotationally fixed manner and is configured as a rotatable operating element for rotating the inner housing (7, 107) and the outer housing (8, 108) relative to each other.

13. The sanitary valve according to claim 10, characterized in that The valve seat (18, 118) is arranged between the at least one valve inlet (14, 114, 152) and the valve outlet (13, 113), and the valve seat (18, 118) can be closed by the diaphragm (3, 103), wherein the diaphragm (3, 103) closes a pressure chamber (19, 119), and the pressure chamber can be filled from the at least one valve inlet (14, 114, 152), so that the diaphragm (3, 103) closes the valve seat (18, 118) in a closed position when the pressure chamber (19, 119) is filled and releases the valve seat (18, 118) in an open position when the pressure chamber (19, 119) is relieved.

14. The sanitary valve according to any one of claims 1 to 3, characterized in that The valve tappet (5, 105) can be used to close a relief opening (17, 117) on the diaphragm (3, 103) that leads into the at least one valve outlet (13, 113).

15. The sanitary valve according to claim 2 or 3, characterized in that: At least the outer housing (8, 108) and / or the housing lower part of the inner housing (7, 107) are made of plastic.

16. The sanitary valve according to any one of claims 1 to 3, characterized in that The sanitary valve is designed as a regulating and closing valve or as a mixing and closing valve.

17. The sanitary valve according to any one of claims 1 to 3, characterized in that The sanitary valve (101) has two valve inlets, and multiple pairs of valve openings forming the valve inlets of the sanitary valve can overlap, so that through the rotational movement of the inner shell and the outer shell, the net opening cross section on one of the valve inlets can be increased, while the net opening cross section on the other valve inlet can be reduced, and vice versa.

18. The sanitary valve according to claim 7, characterized in that The at least one second annular seal (26, 126) is configured as an X-ring sealing ring.

19. The sanitary valve according to claim 10, characterized in that The pot bottom of the housing lower part (23, 123) of the inner housing (7, 107) is connected in one piece to a sleeve-shaped valve connecting piece (28, 128).

Images