Sanitary valve with a diaphragm

Abstract

A sanitary valve (1) for use in a fitting (2), including a valve housing (3), a main valve (4) which has a movable diaphragm (5), and a pilot valve (6), by which the main valve (4) can be actuated. The position of the diaphragm (5) can be specified by the position of a valve tappet (7) of the pilot valve (6), and a tube securing element (9) which is paired with an inlet opening (8) of the valve housing (3) is formed on the valve housing (3) and/or a mouthpiece securing element (11) or a jet regulator securing element which is paired with an outlet opening (10) of the valve housing (3) is formed on the valve housing (3) and/or the sanitary valve (1) has a clamping device (12), by which the valve housing (3) and an adjustment device part (13) can be rigidly connected together or are rigidly connected together.

Claims

1. A sanitary valve (1) for insertion into a fitting (2), the sanitary valve comprising: a valve housing (3), insertable into a fitting (2), a main valve (4) which has a movable diaphragm (5), a pilot valve (6) by which the main valve (4) is actuatable, and a valve tappet (7) by which a position of the diaphragm (5) is predefinable by a setting of the valve tappet (7) of the pilot valve (6), an adjustment device part (13) and a clamping device (12) by which the valve housing (3) and the adjustment device part (13) are connected to each other; wherein the main valve (4), the pilot valve (6) and valve tappet (7) are entirely housed within the valve housing (3), which comprises a portion configured as a tube securing means (9), to which a tube (8) is directly attachable and which is assigned to an inflow opening (8) of the valve housing (3) and wherein the clamping device (12) is comprised of two parts (22) which each include a coupling element (23) and a corresponding mating coupling element (24) for receiving the coupling element (23) of the other part (22), as a result of which the two parts (22) are couplable to each other.

2. The sanitary valve (1) as claimed in claim 1, further comprising at least one of a mouthpiece securing means (11) or a jet regulator securing means assigned to an outflow opening (10) of the valve housing (3) formed on the valve housing (3).

3. The sanitary valve (1) as claimed in claim 2, further comprising a mouthpiece secured directly on the mouthpiece securing means (11), wherein the sanitary valve (1) is adapted to be inserted in a valve-receiving space (20) of the fitting (2) and is adapted to be fixed on the fitting (2) by the mouthpiece secured on the mouthpiece securing means (11), or the sanitary valve (1) has a securing ring (38) by which the valve is adapted to be on the fitting (2).

4. The sanitary valve (1) as claimed in claim 2, further comprising a jet regulator secured directly on the jet regulator securing means, and the sanitary valve (1) is adapted to be inserted in a valve-receiving space (20) of the fitting (2) and is adapted to be fixed on the fitting (2) by the jet regulator secured on the jet regulator securing means, or a mouthpiece that is secured directly on the mouthpiece securing means (11) has a jet regulator, or a jet regulator is arranged between the mouthpiece and the outflow opening (10).

5. The sanitary valve (1) as claimed in claim 4, wherein the mouthpiece has an inner thread and the valve housing (3) at the outflow opening (10) has a corresponding outer thread (19), or the mouthpiece has an outer thread (19) and the valve housing (3) at the outflow opening (10) has a corresponding inner thread (32), or the jet regulator has an inner thread and the valve housing (3) at the outflow opening (10) has a corresponding outer thread (19), or the jet regulator has an outer thread (19) and the valve housing (3) at the outflow opening has a corresponding inner thread (32).

6. The sanitary valve (1) as claimed in claim 1, further comprising at least one of a channel (21) configured to be closed toward the fitting (2) or a pressure chamber (28) configured to be closed toward the fitting (2) formed through the valve housing (3) and the adjustment device part (13), such that there is adapted to be no contact between the fitting (2) and a liquid flowing through the sanitary valve (1).

7. The sanitary valve (1) as claimed in claim 1, wherein the clamping device (12) has two parts (22) which are connectable to each other and which, in an assembled position, form a hollow cylinder that encloses and firmly connects the valve housing (3) and the adjustment device part (13) at least in a coupling region (25).

8. The sanitary valve (1) as claimed in claim 7, wherein the clamping device (12) permits a firm connection of the valve housing (3) and of the adjustment device part (13) outside the fitting (2).

9. The sanitary valve (1) as claimed in claim 1, further comprising at least one fixing element (26) having a maximum external diameter that is configured such that the sanitary valve (1), in a state when inserted into the fitting (2), is fixed in a radial direction, with the at least one fixing element (26) being configured to bear on an inner wall (27) of a valve-receiving space (20), such that the sanitary valve (1) is adapted to be inserted into the fitting (2) or is adapted to be removable from the fitting (2) exclusively in an axial direction.

10. The sanitary valve (1) as claimed in claim 9, wherein the at least one fixing element (26) is formed by at least one of the clamping device (12) by which the valve housing (3) and an adjustment device part (13) are connected to each other or by a bearing element (14) formed or mounted on the valve housing (3) and with which the valve housing (3) adapted to bear on a through-opening (16) in a wall (15) of the fitting (2).

11. The sanitary valve (1) as claimed in claim 1, wherein the movable diaphragm (5) closes a pressure chamber (28) which is configured between the valve housing (3) and an adjustment device part (13), the pressure chamber (28) is adapted to be filled via a filling opening (29), with liquid that flows in via a valve inlet (30), and the pressure chamber (28) is configured such that a pressure builds up inside the pressure chamber (28) when a relief opening is closed.

12. A method of assembling the sanitary valve (1) as claimed in claim 1 into the fitting (2) such that a direct contact between the fitting (2) and a stream of liquid is prevented, the method comprising connecting a tube (18) directly to the valve housing (3) by connecting an attachment element of the tube (18) to the tube securing means (9).

13. The method as claimed in claim 12, further comprising connecting the tube (18) to the valve housing (3) before the sanitary valve (1) is inserted into a valve-receiving space of a fitting (2).

14. A sanitary valve (1) for insertion into a fitting (2), the sanitary valve comprising: a valve housing (3), insertable into a fitting (2), a main valve (4) which has a movable diaphragm (5), a pilot valve (6) by which the main valve (4) is actuatable, and a valve tappet (7) by which a position of the diaphragm (5) is predefinable by a setting of the valve tappet (7) of the pilot valve (6), wherein the main valve (4), the pilot valve (6) and valve tappet (7) are entirely housed within the valve housing (3), which comprises a portion configured as a tube securing means (9), to which a tube (8) is directly attachable and which is assigned to an inflow opening (8) of the valve housing (3), wherein the tube securing means (9) has a maximum external diameter which is smaller than a maximum external diameter of a bearing element (14) formed or mounted on the valve housing (3) and with which the valve housing (3) adapted to bear on a through-opening (16) in a wall (15) of the fitting (2), and the maximum external diameter of the tube securing means (9) is configured to be smaller than a clear internal diameter of the through-opening (16).

15. A sanitary valve (1) for insertion into a fitting (2), the sanitary valve comprising: a valve housing (3), insertable into a fitting (2), a main valve (4) which has a movable diaphragm (5), a pilot valve (6) by which the main valve (4) is actuatable, and a valve tappet (7) by which a position of the diaphragm (5) is predefinable by a setting of the valve tappet (7) of the pilot valve (6), wherein the main valve (4), the pilot valve (6) and valve tappet (7) are entirely housed within the valve housing (3), which comprises a portion configured as a tube securing means (9), to which a tube (8) is directly attachable and which is assigned to an inflow opening (8) of the valve housing (3), wherein the tube securing means (9) has an outer thread (19) for attachment of a corresponding inner thread (32) of a securing sleeve (17) of the sanitary valve (1) that is adapted to be connected to a tube (18), or the tube securing means (9) has an inner thread for attachment of a corresponding outer thread (19) of a securing sleeve (17) of the sanitary valve (1) that is adapted to be connected to a tube (18), or the tube securing means (9) is configured as a securing plate with a tube receptacle.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention is now described on the basis of illustrative embodiments, but it is not restricted to these illustrative embodiments. Further illustrative embodiments will emerge from combination of the features of individual or multiple claims with one another and/or with individual or multiple features of the illustrative embodiments.

(2) In the figures:

(3) FIG. 1 shows an axial section through a sanitary valve according to the invention, when inserted in the assembled position into a fitting,

(4) FIG. 2 shows a three-dimensional oblique view of the sanitary valve according to FIG. 1,

(5) FIG. 3 shows a three-dimensional side view of the sanitary valve according to FIG. 1,

(6) FIG. 4 shows a three-dimensional oblique view of a clamping device of the sanitary valve,

(7) FIG. 5 shows a three-dimensional side view of the clamping device,

(8) FIG. 6 shows a transverse section of the clamping device according to FIG. 4, and

(9) FIG. 7 shows a plan view of the assembled parts of the clamping device.

DETAILED DESCRIPTION

(10) FIG. 1 shows a sanitary valve designated overall by reference sign 1 and configured to be inserted into a fitting 2. The sanitary valve 1 has a valve housing 3, a main valve 4 with a movable diaphragm 5, and a pilot valve 6. The main valve 4 is configured in a manner known per se. The movable diaphragm 5 is made from an elastic material. The main valve 4 has a valve body 33 and a valve seat 34 into which the valve body 33 is insertable. In the open position of the main valve 4, the valve body 33 lies outside the valve seat 34, such that water can flow past it. In the closed position of the main valve 4, the valve body 33 is pressed into the valve seat 34, such that no water can flow through the valve seat 34 into an outflow opening 10.

(11) The valve body 33 has a relief opening 31 through which water can flow off into the outflow opening 10 when the relief opening 31 is opened. The relief opening 31 is closable by a valve tappet 7 of the pilot valve 6. In the closed position of the relief opening 31, a pressure builds up inside a pressure chamber 28, since water flows in from a valve inlet 30 via a filling opening 29. The pressure inside the pressure chamber 28 presses the valve body 33 of the main valve 4 into the valve seat 34 and closes a channel 21 of the sanitary valve 1. The main valve 4 is then in the closed position.

(12) The pilot valve 6 can be operated by an adjustment device part 13. The setting of the valve tappet 7 relative to the valve body 33 can be changed by the adjustment device part 13. The setting of the valve tappet 7 is adjustable by an actuation element 35.

(13) The adjustment device part 13 preferably has a push-push mechanism which can be operated from the outside by the actuation element 35, in particular by a knob. By repeated pressing of the actuation element 35, it is possible to switch over between different switching positions.

(14) FIG. 1 shows a switching position in which the sanitary valve 1, in particular the main valve 4, is in the open position.

(15) A tube securing means 9 assigned to the inflow opening 8 of the valve housing 3 is formed on the valve housing 3. In the embodiments according to FIGS. 1-3, the tube securing means 9 is configured as a nozzle with an outer thread 19.

(16) The tube securing means 9 has a maximum external diameter which is smaller than a maximum external diameter of a bearing element 14 formed on the valve housing 3. The bearing element 14 is designed for placing the valve housing 3 onto a wall 15 of the fitting 2. Downstream in the direction of flow of the water through the sanitary valve 1, the bearing element 14 bears on the wall 15 when the valve is in the assembled state. The through-opening 16 has a clear internal diameter greater than the maximum external diameter of the tube securing means 9, such that the tube securing means 9 is insertable into the through-opening 16.

(17) The sanitary valve 1 has a securing sleeve 17 with an inner thread 32 corresponding to the outer thread 19 of the tube securing means 9. It is thereby possible to attach the tube 18 directly to the valve housing 3 via the securing sleeve 17. The securing sleeve 17 is connected or connectable to the tube 18.

(18) The valve housing 3 forms a mouthpiece securing means 11 at an outflow opening 10 of the valve housing 3. The mouthpiece securing means 11 is configured as a nozzle with an outer thread 19 onto which a mouthpiece is directly securable or secured. In the assembly position, i.e. when the sanitary valve 1 is inserted into a valve-receiving space 20 of the fitting 2, the sanitary valve 1 is fixed or fixable on the fitting 2 by the mouthpiece secured on the mouthpiece securing means 11. In this way, unwanted sliding or removal of the sanitary valve 1 from the fitting 2 is not possible, since the mouthpiece abuts with at least one side wall on the edge of an aperture through the fitting 2. The aperture forms an outlet opening from the fitting 2, through which the secured mouthpiece protrudes from the fitting 2. Alternatively or in addition to this, the valve housing 3 can also form or have a jet regulator securing means at the outflow opening 10 of the valve housing 3. It is thus also possible for the sanitary valve 1 to be fastened using a jet regulator mounted on the jet regulator securing means.

(19) The mouthpiece can have a jet regulator in order to generate a water jet with desired properties. Alternatively to this, it is likewise conceivable that a jet regulator is interposed between the mouthpiece and the mouthpiece securing means 11, for example by being insertable into the mouthpiece.

(20) The valve housing 3 and the adjustment device part 13 together form a channel 21 closed toward the outside. It is thus possible to prevent a situation where water flowing through the channel 21 comes into contact with the fitting 2. In addition, it is possible for the mouthpiece and/or the jet regulator to be attached to the valve housing 3 directly, i.e. without further adapter parts, without interposition of further connection pieces between the sanitary valve 1 and the mouthpiece and/or jet regulator. This permits a considerably more compact and more cost-effective design.

(21) The sanitary valve 1 has a clamping device 12 with which the valve housing 3 and the adjustment device part 13 are firmly connectable or connected to each other in a coupling region 25 of the sanitary valve 1. In the assembled position of the sanitary valve 1, the valve housing 3 and the adjustment device part 13 are firmly connected to each other.

(22) The clamping device 12 according to FIGS. 4-7 has two identical parts. Each part 22 is here configured as a half of a hollow cylinder. The two parts 22 of the clamping device 12 are at least partially arrangeable around the valve housing 3 and the adjustment device part 13, as a result of which they are firmly couplable to each other. The two parts 22 each have a coupling element 23 and a corresponding mating coupling element 24 for receiving the coupling element 23 of the respective other part 22. In the assembled position, the coupling element 23 of one part 22 engages in the mating coupling element 24 of the other part 2. In this way, the two parts are couplable to each other, preferably releasably.

(23) The coupling element 23 and the mating coupling element 24 of the parts 22 of the clamping device 12 according to FIGS. 4-7 together form a latch connection, wherein the coupling element 23 is insertable into an opening formed on the mating coupling element 24 and can be latched in said opening.

(24) By use of the clamping device 12, it is possible for the valve housing 3 and the adjustment device part 13 to be already firmly connected to each other outside the fitting 2, which permits simple assembly of the sanitary valve 1. The sanitary valve 1, with the tube 18 secured on the valve housing 3 and with the adjustment device part 13 coupled to the valve housing 3, can then be inserted into the valve-receiving space 20 in the fitting 2.

(25) To protect the adjustment device part 13, which can have a relatively sensitive mechanism, from damage caused by jolts during the securing of the tube 18 to the valve housing 3, it is possible to couple the valve housing 3 to the adjustment device part 13 after the tube has been secured on the tube securing means 9. This is possible by virtue of the modular configuration of the sanitary valve 1, wherein the operating mechanism of the adjustment device part 13 is easily couplable to the valve housing 3 after the tube 18 has been mounted on the valve housing 3 by the clamping device 12.

(26) To be able to prevent the sanitary valve 1 from slipping in the radial direction in the assembly position of the sanitary valve 1, the sanitary valve 1 has several fixing elements 26. The maximum external diameter of the fixing elements 26, which are of circular cross section, is dimensioned such that the sanitary valve 1, in the state when inserted into the fitting 2, is fixed in the radial direction, by the fixing elements 26 bearing on an inner wall 27 of the valve-receiving space 20. In this way, the sanitary valve 1 is insertable into the fitting 2 or removable from the fitting 2 exclusively in an axial direction into an insertion opening 39.

(27) In the sanitary valve 1 shown in FIGS. 1-3, the fixing elements 26 are formed by the clamping device 12 and by the bearing element 14.

(28) A filter element 36 is arranged between inflow opening 8 and valve inlet 30, as a result of which particles flowing in from the tube 18 can be prevented from reaching the main valve 4.

(29) To ensure that the sanitary valve 1 inserted into the valve-receiving space 20 in the assembly position can be particularly well fixed, the sanitary valve 1 has a securing ring 38 by which the valve is fixable on the fitting 2. As is shown in FIG. 1, the securing ring 38 is securable at the edge of the insertion opening 39 of the valve-receiving space 20. By use of the securing ring 38, it is possible to prevent axial sliding or removal of the sanitary valve 1 from the insertion opening 39. The securing ring 38 is preferably designed as a snap ring which, in the inserted state, engages in a recess, designed particularly as a groove, on the fitting 2 and thereby axially fastens the sanitary valve 1. A snap ring permits particularly cost-effective but stable axial fastening.

LIST OF REFERENCE SIGNS

(30) 1 sanitary valve 2 fitting 3 valve housing 4 main valve 5 movable diaphragm 6 pilot valve 7 valve tappet 8 inflow opening 9 tube securing means 10 outflow opening 11 mouthpiece securing means 12 clamping device 13 adjustment device part 14 bearing element 15 wall of the fitting 16 through-opening 17 securing sleeve 18 tube 19 outer thread 20 valve-receiving space 21 channel 22 part of the clamping device 23 coupling element 24 mating coupling element 25 coupling region 26 fixing element 27 inner wall of the valve-receiving space 28 pressure chamber 29 filling opening 30 valve inlet 31 relief opening 32 inner thread 33 valve body 34 valve seat 35 actuation element 36 filter element 37 push-push mechanism 38 securing ring 39 insertion opening