WO2014076242A1 - Sanitary valve - Google Patents

Abstract

A sanitary valve contains a diaphragm valve with a control hole (28) and a control plunger (1) which interacts with the control hole. The control plunger and the control opening form a pilot valve. If the pilot valve is opened, the diaphragm valve opens in a pressure-controlled manner. The sanitary valve contains a stop for limiting the opening of the diaphragm valve. Said stop can be adjusted by the same actuating element, by way of which the pilot valve and therefore also the diaphragm valve can be opened and closed.

Description

 description

sanitary valve

The invention is based on a sanitary valve with a diaphragm valve. Diaphragm valves advantageously have a pilot valve, with which they require a low actuation effort, which is why they are generally used in electrically operated valves.

It is already known an electrically operated diaphragm valve, in which the control bore can be opened and closed by means of an electric drive. The maximum stroke of the diaphragm is limited by a stop which can be changed in position by means of a screwdriver, independently of the switching on and off of the valve (EP 0 253 948 B1).

The invention is based on the object to provide a manually operable, easy-to-adjust sanitary valve of the type mentioned, in which the user can change the flow rate in an advantageous manner in addition to switching on and off with the same handle.

To solve this problem, the invention proposes a sanitary valve with the features mentioned in claim 1. The sanitary valve according to the invention has a pilot valve with control piston and control opening for the diaphragm valve and an adjustable stop for limiting the movement of the diaphragm. Further developments of the invention are the subject of dependent claims.

In a further development of the invention can be provided that a common actuator for movement of the control piston and the movement of the stopper is provided. Such a common actuator facilitates and simplifies the operation of the sanitary valve. For switching on and off the diaphragm valve, the invention proposes in a further embodiment, to provide a step-through gear which moves the control piston from the first to the second position by axial pressure on the actuating element, and by also an axial pressure on the actuating element in the same direction moves the control piston back from the second to the first position. Such indexing gears are generally used in a wide variety of technical fields known, so that they are not described here.

To change the stop, which determines the maximum opening position of the diaphragm valve, a rotational movement can be provided in a further embodiment of the invention. It may be provided in a development that an actuating button is present, which turns on by pressing the valve and turns off and moves by turning the stop, so determines the amount of flowing out of the sanitary valve water.

When using a set by axial pressure on the actuating element in progressing gear transmission can be provided in a further embodiment of the invention that the two positions of the diaphragm valve, corresponding to the two positions of the control piston, each assigned a different axial position of the actuating element. For example, when the valve is open, the actuating element is arranged axially closer to a valve housing and further away from it when the valve is closed. For the user, this means that when the actuating element is pressed in, the valve is switched on and the valve is closed when the actuating element is not pressed in. In this way, the user can visually and haptically recognize the switching state of the valve.

If one uses for adjusting the stop which determines the maximum Öffnsu ngsstellung the valve and thus the flow rate, a rotational movement of the actuating element may be provided when using a thread for performing this rotational movement, that the axial position of the actuating element also changes. This change, however, is then a continuous change in position as opposed to the only two-position change in turning the valve on and off.

In a further embodiment of the invention, the actuator together men together with the transmission for movement of the control piston as a Bauein be formed unit, which is closed in itself.

In a further development of the invention, it can be provided that the structural unit, which has the actuating element and the gear for the movement of the control piston, also contains the stop for limiting the movement of the diaphragm. In a further development of the invention can be provided that the assembly that contains the actuator and the gearbox for moving the control piston is used as a unit in a valve core, with which it is connected by a thread. It can thereby be achieved that the actuator by twisting the assembly more or less far into the valve insert into or out of this. In this way, the stop to limit the movement of the membrane can be adjusted.

In a further development of the invention it can be provided that a handle is connected to the loading element. If this handle is firmly connected to the actuating element, the position of the actuating element and thus the position of the control piston can be detected on it.

However, it is also possible me, that the handle rotatably ngselement with the Betätigungsigu, but axially displaceable, is connected. In this case, it can be ensured that upon rotation of the actuating element for changing the Durchgangsquersch nitts the handle is held, for example by a spring in a fixed position, although the actuator changes its axial position.

In a further embodiment of the invention, the handle can be connected to the actuating element via a thread. This development can lead to that when turning the actuating element, the aufgru nd of its own thread relative to the valve insert changes its axial position, the handle itself does not or only partially participates in this movement. In particular, it can be provided that the thread between the handle and the actuating element has the same pitch as the thread between the actuating element and the valve core. This results in the handle maintaining its axial position when adjusting the flow area and thus the amount of water flowing through the valve. At the same time, however, the handle follows upon pressing in this movement, so that the state of the valve, whether it is switched on or configured, can be recognized at the position of the handle.

In a further development it can be provided that the membrane is designed as a ring element which is fixed in the region of its outer edge in the valve insert, while it is fastened in its central region to a rigid valve body which contains the control bore and which also with the stop for limiting the movement of the membrane interacts. It can be provided that the control piston is acted upon by a magnet, so that the sealing of the individual parts of the sanitary valve proposed by the invention is simplified.

According to the invention, it may be provided that the switching state of the valve can be recognized optically and haptically by a different position of the handle.

Further features, individual units and advantages of the invention will become apparent from the claims, the wording of which reference me to the content of the description is made, and the following description of advantageous Ausführu ngsformen the invention and with reference to the drawing. Hereby show:

Figure 1 is an axial section of a first component of the valve proposed by the invention;

FIG. 2 shows an axial section through a Veniiieinsatz containing the component of Figure 1;

FIG. 3 shows a cross section through the component of FIG. 2; FIG. 4 shows an axial section through the sanitary valve according to the invention;

Figure 5 is a first cross-section through the valve of Figure 4;

FIG. 6 shows a second cross section through the valve of FIG. 4;

FIG. 7 shows a third cross section through the valve of FIG. 4;

FIG. 8 shows an axial section corresponding to FIG. 4 in a second embodiment of the invention;

Figure 9 is a cross-section along line IX-IX in Figure 8;

Figure 1 0 is a cross section along line X-X in Figure 8;

Figure 1 1 a Figures 4 and 8 corresponding axial section through a third

Ausführu ngsform of the valve proposed by the invention; Figure 1 2 a Quersch nitt along line Xl l-Xl l in Figure 1 1;

FIG. 1 3 shows a cross-section along the line 1 1 1; FIG.

Figure 14 shows the outer view of a sanitary fitting with a erfindu ngsgemäßen

 Valve ; FIG. 1 5 shows the outer view of a further example of a sanitary fitting with a valve according to the invention;

The component shown in longitudinal section in FIG. 1 forms the lifting unit, with the aid of which the control piston 1 can be moved between its two positions. The lifting unit includes an upper housing part 2, which is approximately cup-shaped and whose lower open side is closed by the lower housing part 3. The lower housing part 3 is connected to the upper housing part 2 by a snap connection. I n the interior of the lifting unit, a probe element 4 is mounted axially displaceable, which protrudes from an upper opening of the housing upper part 2 in part. The axial displaceability is designed so that the element 4 can not be rotated relative to the upper housing part. This can be seen on the rib 5, which is received and guided in a corresponding axial groove of the opening of the housing upper part 2.

At its upper end, the probe element 4 includes a hollow threaded connection 6 provided with a screw 7. Inside the sleeve-like probe element 4, a sleeve-like holder 8 is arranged, which holds a magnet 9 in its lower disseminated end portion.

The lower housing part 3 of the lifting unit is formed by a plate 1 0, which has on its directed into the interior of the lifting unit inside a cyl Indian approach 1 1, which is closed at its end. On the opposite outer side, this approach continues in a further approach 1 2.

The interior of both approaches 1 1, 1 2 is cylindrical and is used for Unterbringu ng of the aforementioned control piston, which contains a cover 1 3 of elastomeric material at its pointing out of the interior free end. The control piston 1 has a blind hole in which a compression spring 14 is arranged, which is located on the closed end of the neck 1 1 is supported.

At its end remote from the free end of the control piston 1 is provided with a common edge 1 5, which cooperates with the magnet 9.

In the interior of the holder 8, a further compression spring 1 6 is housed, which is supported on the front side of the projection 1 1 of the housing part 3 on the one hand u nd at the opposite end of the holder 8.

Between the holder 8 and the probe element 4, a further switching device is formed, which is composed of a plurality of cooperating oblique elements. A displacement of the probe element 4 in Figure 1 down leads from geometric reasons Sei also to a displacement of the holder 8 and due to the mentioned inclined surfaces to a rotation, so that when releasing the probe element d he Halteru ng 8 remains in a displaced position. In a second pressure on the probe element 4, the holder 8 is moved forward by a small amount and simultaneously rotated, so that the subsequent release of the probe element 4, the holder 8 returns to its original position.

At the bottom of the plate 1 0 of the lower housing part 3, a stop element 1 7 is formed, which extends radially relative to the lug I 1 2. The outside of the housing upper part 2 has a thread 1 8.

The following figure 2 shows a valve insert, which can be used in a receptacle of a dashboard housing and is intended. This valve insert contains a lifting unit, as shown and described in FIG. The valve core includes an upper part 20 to which an adapter element 21 is connected by a snap connection. Within the adapter element 21, the eigentl Ie diaphragm valve is housed. The lifting unit is screwed with its external thread 1 8 in an internal thread of the upper part. By twisting the Hubein unit can this be more or less screwed far into the upper part 20 n. During this rotation, the stop element 17 shown in FIG. 1 and in FIG. 2 is also rotated.

The adapter element 21 contains an inlet 22 for the water to be dispensed through the sanitary valve. It also contains an outlet 23. Between the two is the Diaphragm valve arranged. By leading to the outlet 23 Wasserfü tion a valve seat 24 is formed, which is arranged in a direction perpendicular to the longitudinal axis plane.

An annular deformable membrane 25 is fixed with its outer circumference between the adapter element 21 and an insert 26. The membrane 25 is connected with its inwardly directed, a central Öffnu ng surrounding area with a valve closing body 27 having a through hole 28. This bore is the control bore of the diaphragm valve. At a point not visible in the figure, through the membrane 25 a compensation bore leads from the inlet 22 into a pressure space 29 which is blown on the opposite side of the membrane 25.

Through a central opening of the insert 26 engages sealed approach 1 2 of the housing part 3 of the lifting unit. The valve closing body 27 has on its side facing the control piston 1 an extension, through which the control bore 28 passes. At the separation point between the upper part 20 of the valve core and the adapter element 21 is a stop disc 30 housed in the upper part 20, the men together with the rotatable stop element 1 7 leads to a limitation of the rotational movement of the upper housing part 2 of the lifting unit. The interaction of these two elements 1 7, 30 is indicated in the section of Figure 3. The operation of the valve can already be explained with reference to FIG 2. FIG. 2 shows the valve in the closed state. The control piston 1 closes the Steueröffnu ng 28. The water passing through the inlet 22 at the input side of the membrane 25 passes through the aforementioned compensation hole in the pressure chamber 29 on the opposite side of the membrane 25. Since the surface on which the water the back in the pressure chamber 29 abuts the membrane is greater than the area on the opposite side, the diaphragm valve remains closed. If now by pressing the probe element 4, the holder 8 with the Mag neten 9 and u pushed by the spring 1 6 6 pushed upward, so follows the movement of the magnet 9 of the control piston 1 and opens the Steuerbohru ng 28. Thus, the Drucku Difference lifted and the water opens by its pressure the valve by lifting the membrane with the closing body 27 of the valve seat 24. The Schl ießkörper 27 dan n comes to rest against the end face 31 of the neck 1 2, which limits its further movement. By pressing again on the probe element 4, the control piston 1 ng of the Steuerbohru ng 28 again placed on the Mü nü so that the valve closes again.

By turning the upper housing part 2, this is more or less screwed far into the upper part 20 of the valve insert, so that the axial position of the end face 31 of the projection 1 2 changes. In this way, the maximum opening position of the diaphragm valve and thus the amount of outflowing water can be changed.

FIG. 4 shows the installation of the valve insert of FIG. 2 in a receptacle of a sanitary armature housing 32.

About a driver 33, a handle member 34 is rotatably connected to the upper housing part 2 of the lifting unit. With the handle member 34, the Griffabdecku ng 35 is rotatably connected. The grip element 34 is additionally connected via a lock nut 36 with the threaded projection 7 of the probe element 4. As a result, by rotating the handle over the handle cover, the lifting unit is more or less screwed into the valve insert arranged in the sanitary fitting, so that the position of the front end 31 of the projection 1 2 changes. A pressure on the handle leads to an actuation of the lifting unit in the manner already described.

Figure 5 shows in a section along line V-V the engagement of lugs on the inside of the handle cover 35 in notches of the handle 34 and thus the connection in the direction of rotation. Figure 6 shows in a Sch nitt along line Vl-Vl the positive Verbindu ng between the handle member 34 and the driver 33 in the direction of rotation.

Figure 7 shows in a further step, the positive connection between the driver 33 and the upper housing part 2 of the lifting unit.

In the embodiment of the invention described so far, the axial position of the handle 34 and its handle cover 35 changes continuously during rotation, and when switching the diaphragm valve on and off, it changes discontinuously.

In the embodiment of FIGS. 8 to 10 described now, the upper housing part 2 'of the lifting unit is extended upward and has a hexagonal outer shape. Also, the upper part 20 'of the valve core is extended upward and has its upper end an inwardly directed bead 40 on. With the handle 41, a driver 42 is non-rotatably connected on the inner side thereof, which is approximately cup-shaped and which engages between the outer wall of the upper part 20 and the upwardly extended wall section of the upper housing part 2 '. Due to the hexagonal shape of the upper housing part 2 'and the com plementären shape of the driver 42 so there is a positive connection between the driver 42 and the upper housing part 2 of the lifting unit. Between the inside of the driver 42 and the upper housing part 2, a compression spring 43 is arranged. The apron-like wall section 44 of the driver 42 is guided in this way telescopically between the upper part 20 'of the valve insert and the upper housing part 2' of the lifting unit.

If the lifting unit is rotated with respect to the valve insert by means of the handle 41, the handle 41 remains in the position formed by the bead 40 and a corresponding counterbore 45. Actuation of the lifting unit to turn on and off the diaphragm valve is still possible, but after releasing the handle 41, it returns to the position shown in FIG. A user can no longer recognize at the position of the handle whether the valve is on or off.

FIG. 9 shows the non-rotatable connection between the handle 41 and the catch 42 in a section, while FIG. 10 shows the rotationally fixed connection between the upper housing part 2 'of the lifting unit and the catch 41. In the embodiment shown in FIGS. 11 to 13, a fixing sleeve 50 is placed on the outer side of the upper part 20 'of the valve insert and is axially displaceably but non-rotatably connected to the upper part 20. The rotationally fixed connection, which is achieved by a positive connection, can be seen for example in Figure 1 3. There it can be seen that on the inside of the fixing sleeve 50, two ribs 51 are formed, which engage in corresponding grooves in the outer side of the upper part 20 '.

The handle 52, which is again pot-shaped, has at the In nenseite its end wall a hexagonal projection 53 which engages in the hexagonal opening 54 of the probe element 4. As a result, a positive connection in the direction of rotation between the handle 52 u nd the probe element 4 is given.

The fixing sleeve 50 is positively connected to a contact nut 55, both in the direction of rotation and in the axial direction. The contact nut 55 is connected to the ßenseite the threaded projection 7 of the probe element 4 screwed existing thread. When the thread is a double-thread, which has the same Steigu ng as the thread 1 8 on the outside of the upper housing part 2 of the lifting unit. Upon depression of the handle 52, the probe 4 is moved down so that it turns on or off the diaphragm valve in the same manner as in the previous embodiments. Similar to the embodiment in FIG. 4, the handle 52 remains in the depressed position in the pushed-in position.

Upon rotation of the handle 52 is about the hexagonal shape of the projection 53 and the opening 54, the probe element 4 is rotated, which also rotates the upper housing part 2 because of the positive connection, so that the Hubein unit screws into the upper part 20 'of the valve core. At the same time, however, the contact nut 55 screws on the outside of the threaded projection 7 of the probe element 4 upwards. Since the thread of the contact nut 55 and the thread 1 8 on the outside of the upper housing part 2 of the lifting unit have the same slope, the axial position of the handle remains unchanged during rotation.

Figure 14 shows an example of a kitchen mixer with a trained as horizontally angeord netes cyl Indian tube 60 San itärarmatur u and an outlet 61 at the bottom of the tube 60. A handle 62 for opening and closing the spout 61 and the rule n the Outlet quantity is arranged on the axial end side of the tube 60. The handle 62 can be twisted to determine the amount of leaking water, and it can be depressed for opening and closing. For this reason, there is a gap between the head of the handle 62 and the end edge of the tube 60 in the illustrated state, which indicates that the valve is switched off.

Figure 1 5 shows another example of the use of a sanitary valve according to the invention, in which the valve is housed in a branch 63 of a sanitary fitting also designed as a cylindrical tube 64. The operation is again by means of a handle 65 which can be twisted and pressed. In addition, I am at the junction 63 of the sanitary fitting nor an adjustment 66 for adjusting the temperature angeord net.

Claims

 claims 1 . Sanitary valve, with 1 .1 a water inlet (22), 1 .2 a water outlet (23) and 1 .3 arranged between these membrane valve with a membrane  (25), the 1 .4 a valve seat (24), 1 .5 a compensation opening, 1 .6 a Steueröffnu ng (28) and 1 .7 one with the Steueröffnu gene (28) cooperating control piston (1), the 1 .8 has two stable positions, 1 .9 in which one of them closes the control opening (28) and 1 .1 0 in whose other one it keeps the control opening (28) open, and with 1 .1 1 an adjustable stop to limit the movement of the membrane  (25). 2. Sanitary valve according to claim 1, with a common actuating element for moving the control piston and for adjusting the stop. 3. Sanitary valve according to claim 1 or 2, wherein the movement of the control piston (1) is provided a forward gear, the axial piston by the control piston (1) from the first to the second position and by an axial pressure in the same Richtu from the second moved to the first position. 4. Sanitary valve according to one of the preceding claims, in which a rotational movement is provided for the movement of the stop. 5. Sanitary valve according to claim 3 or 4, wherein the Betätigu ngselement with the Gear for movement of the control piston (1) is designed as a structural unit. 6. Sanitary valve according to claim 5, wherein the assembly containing the actuating element and the gearbox contains the stop for limiting the movement of the diaphragm ning. Sanitary valve according to claim 5 or 6, wherein the assembly containing the actuating element and the gear is inserted into a valve core and is verbu with this by a threaded verbun. Sanitary valve according to one of the preceding claims, in which a handle is connected to the actuating element. 9. Sanitary valve according to claim 8, wherein the handle is rotatably connected to the actuating element. 1 0. Sanitary valve according to claim 9, wherein the handle is verbu NEN via a thread with the actuating element. 1 1. Sanitary valve according to claim 1 0, wherein the thread for the handle has the same pitch as the thread with which the Bauein unit is connected to the valve core. 1 2. Sanitary valve according to one of the preceding claims, wherein the membrane (25) formed as a ring member and is arranged with its central opening on a rigid element having the control opening (28) and which cooperates with the stop. 1 3. Sanitary valve according to one of the preceding claims, wherein the control piston (1) by a magnet (9) is acted upon. 14. Sanitary valve according to one of claims 3 to 1 3, wherein the actuating element for each of the two positions of the control piston (1) has a different axial position.