Valve upper part for sanitary equipment fittings and sanitary equipment fitting with valve upper part

Abstract

A valve upper part (1) for a sanitary device fitting (2), the valve upper part having at least: - a housing (3), - a valve stem (4) which is arranged at least partially in the housing (3) and which is rotatable relative to the housing (3) about an axis of rotation (5), - a sealing device (6) for at least partially closing a valve seat (7) of the sanitary device fitting (2), wherein the sealing device (6) is displaceable by means of the valve stem (4) parallel to the axis of rotation (5) between an open position and a closed position, wherein the sealing device (6) has a first sealing element (8) made of a first material and a second sealing element (9) made of a second material, and wherein a first hardness of the first material is less than a second hardness of the second material. Furthermore, a sanitary device fitting (2) having such a valve upper part (1) is proposed.

Description

Technical Field

[0001] This invention relates to a valve assembly by means of which the flow of liquid through a liquid passage in a bathroom fixture fitting can be controlled. The bathroom fixture fitting can be used as a shut-off fitting, particularly for shutting off a liquid passage, or as an outflow fitting, particularly for providing liquid as needed in a sink, washbasin, shower, and / or bathtub. Background Technology

[0002] Valve components typically have a sealing device that presses against and is compressed against the valve seat of the bathroom fixture when in the closed position. Therefore, frequent opening and closing of the valve components (which is particularly common and / or occurs over very long periods in bathroom fixtures) can lead to wear and eventually seal failure. Summary of the Invention

[0003] Therefore, the object of the present invention is to at least partially solve the problems described with reference to the prior art, and in particular to provide a valve upper component whose sealing device experiences less wear. Furthermore, a bathroom fixture fitting having a valve upper component whose sealing device experiences less wear is also intended.

[0004] Contributing to this is a valve assembly for bathroom fixtures, which has at least the following features:

[0005] - Casing,

[0006] - A valve stem, which is at least partially disposed within the housing and is rotatable relative to the housing about an axis of rotation.

[0007] - A sealing device for at least partially closing a valve seat of a bathroom fixture fitting, wherein the sealing device can be displaced between an open position and a closed position by means of a valve stem parallel to a rotation axis, wherein the sealing device has a first sealing element made of a first material and a second sealing element made of a second material, wherein the first hardness of the first material is less than the second hardness of the second material.

[0008] This valve component is particularly suitable for bathroom fixture fittings. Bathroom fixture fittings can be configured as shut-off fittings, by which liquid passages and / or liquid lines can be shut off. Furthermore, bathroom fixture fittings can be configured as outflow fittings. Outflow fittings are particularly used to supply liquids, especially water, as needed in sinks, washbasins, showers, and / or bathtubs. For this purpose, the bathroom fixture fitting can deliver cold water at a cold water temperature and hot water at a hot water temperature, which can be mixed to form a mixed water with a desired mixed water temperature. The cold water temperature is particularly high at 25°C, preferably from 1°C to 25°C, particularly preferably from 5°C to 20°C, and / or the hot water temperature is particularly high at 90°C, preferably from 25°C to 90°C, particularly preferably from 55°C to 65°C. The mixed water is then supplied, for example, through at least one liquid line and / or through at least one liquid passage to the outflow portion and / or outflow opening of the bathroom fixture fitting. For example, the valve components may be arranged at least partially within the fitting housing of the bathroom fixtures.

[0009] For this purpose, the valve upper component has a housing and a valve stem, the valve stem being rotatable relative to the housing about a rotational axis. The housing may be at least partially made of plastic and / or metal, such as brass. The valve stem is at least partially arranged in the housing and / or can be rotated relative to the housing about a rotational axis by a user via an actuating element, for example, in the form of an actuating handle or lever. Furthermore, the valve upper component has a sealing device for at least partially closing the valve seat of the bathroom fixture fitting. This sealing device may be fastened to a closing element of the valve upper component, the closing element being, for example, configured as a rising cone or valve cone. The closing element may be at least partially made of plastic and / or metal, such as brass. The sealing device, or the closing element together with the sealing device, can be displaced between an open position and a closed position by the valve stem. In the open position, the valve seat is at least partially open, and in the closed position, the valve seat is closed, so that liquid (substantially) cannot flow through the valve seat. The sealing device and / or closing element can be displaced between the open and closed positions by the valve stem, particularly parallel to the rotational axis.

[0010] The sealing device has a first sealing element made of a first material and a second sealing element made of a second material, wherein the first hardness of the first material is less than the second hardness of the second material.

[0011] Sealing elements are, in particular, independent components that, if necessary, engage with each other. In the assembled state, sealing elements can be partially directly abutted against each other, i.e., especially having corresponding abutting surfaces (on the end sides and / or the circumferential sides). It is also possible for one sealing element to at least partially (separately and / or movably) accommodate / receive another sealing element. In the assembled state, sealing elements can form a form-locking and / or force-locking connection. Form-locking is established by blocking relative movement of the sealing elements by a structural element at at least one location in the sealing element, thereby preventing relative movement in one or more directions. Force-locking connections generate normal forces acting on the surfaces of the sealing elements to be connected, thereby preventing movement of the sealing elements relative to each other, provided that the force does not exceed the reaction force due to static friction.

[0012] The first sealing element may be made at least partially of an elastomer or rubber. The second sealing element may be made of a metal, such as brass, and / or a plastic, such as polytetrafluoroethylene (PTFE). Furthermore, the first hardness of the first material at a temperature of 23°C may be, for example, a maximum Shore hardness of A90, preferably a Shore hardness of A50 to A90, and / or the second hardness of the second material at a temperature of 23°C may be higher than a Shore hardness of A90, preferably a Shore hardness greater than A90 to A100.

[0013] In the closed position of the sealing device, the sealing contact between the sealing device and the valve seat, or the sealing surface between the sealing device and the valve seat, is at least partially formed by the second sealing element. Since the second hardness of the second material of the second sealing element is greater than the first hardness of the first material of the first sealing element, wear on the sealing device can be reduced, wherein the first sealing element simultaneously ensures sufficient elasticity, or more precisely, deformability, of the sealing device. For this purpose, the first sealing element can be used as an elastic element and / or a rebound aid for the second elastic element. Furthermore, the second sealing element in the closed position of the sealing device can prevent excessive deformation of the first sealing element and / or the first sealing element from being pressed out of the receiving portion of the sealing device, thereby preventing breakage within the sealing device.

[0014] The first sealing element and / or the second sealing element may be configured as an annular shape.

[0015] The first sealing element may have a first outer diameter, which is larger than the second outer diameter of the second sealing element. The first outer diameter may be, for example, from 15 mm to 30 mm, preferably from about 17 mm. The second outer diameter may be, for example, from 12 mm to 16 mm, preferably from about 14 mm.

[0016] The first sealing element may be disposed on the circumferential surface of the second sealing element. In particular, the first sealing element may be disposed on the outer circumferential surface of the second sealing element.

[0017] The second sealing element may be disposed in a groove of the first sealing element. The groove may be constructed, for example, at the end face and / or circumferential surface of the first sealing element.

[0018] The second sealing element may have at least one ventilation channel. This ventilation channel allows for ventilation, particularly of the space between the first sealing element and the sealing element, thus preventing a vacuum from being created in this space. The at least one ventilation channel may extend through the second sealing element, at least partially parallel to the axis of rotation.

[0019] According to another perspective, a bathroom fixture accessory is also proposed, which has at least the following features:

[0020] - Fitting housing, with the valve seat arranged within the fitting housing; and

[0021] - Valve components proposed herein for at least partially closing the valve seat.

[0022] The fitting housing may be at least partially made of plastic and / or metal, such as brass. Furthermore, the fitting housing may have at least one liquid inlet and / or at least one liquid outlet for a liquid. Additionally, the fitting housing may have a valve bore for a valve upper component. The valve upper component can be screwed into the valve bore. Furthermore, the fitting housing and valve seat may be constructed as a single unit.

[0023] During the closing movement of the sealing device on the valve component, the first sealing element of the sealing device can contact the upper sealing surface of the valve seat, and subsequently the second sealing element of the sealing device contacts the chamfer of the sealing seat. Furthermore, this can also mean that during the closing movement, the sealing device first contacts the valve seat at the upper sealing surface using the first sealing element, and only as the sealing device continues to move towards the closed position does it contact the (outer and / or inner) chamfer of the valve seat using the second sealing element. Furthermore, this can also specifically mean that in the closed position, the sealing device contacts the upper sealing surface of the valve seat using the first sealing element and contacts the (outer and / or inner) chamfer of the valve seat using the second sealing element. Furthermore, this can also specifically mean that in the closed position, the sealing device does not contact the (outer and / or inner) chamfer of the valve seat using the first sealing element, and / or does not contact the upper sealing surface of the valve seat using the second sealing element. The closing movement is specifically the movement of the sealing device towards the valve seat. The chamfer is specifically constructed at the inner edge of the sealing seat. The upper sealing surface can be, in particular, an area of ​​the valve seat that is closest to the sealing device of the valve upper component, especially when the sealing device is not in contact with the valve seat. Furthermore, the upper sealing surface can be an area of ​​the valve seat that first contacts the sealing device during the closing movement. The upper sealing surface can, for example, be configured in the form of an edge of the upper sealing seat. Additionally, the upper sealing surface can be configured at the end face of the valve seat or at the end face of a sleeve-shaped section of the valve seat. Furthermore, the upper sealing surface can be configured as annular and / or (substantially) linear.

[0024] The valve seat may have an outer chamfer and an inner chamfer. The outer and inner chamfers are particularly formed at the inner edge of the sealing seat. The outer chamfer may be formed radially out of the inner chamfer. The outer chamfer may extend radially inward from the upper sealing seat surface, and / or the inner chamfer may extend radially outward from the inner surface of the valve seat. Furthermore, the outer chamfer may have a first angle and / or the inner chamfer may have a second angle. The first angle may, for example, be 110° to 170°, preferably 148° to 152°, and particularly preferably (about) 150°. The second angle may, for example, be 60° to 90°, preferably 74° to 80°, and particularly preferably (about) 77°.

[0025] During the closing movement of the sealing device on the valve component, the first sealing element of the sealing device can contact the outer chamfer of the valve seat, and subsequently the second sealing element of the sealing device contacts the inner chamfer of the valve seat. Furthermore, this could also mean that during the closing movement, the sealing device first contacts the valve seat at the outer chamfer using the first sealing element, and only after the sealing device continues to move towards the closed position does it contact the inner chamfer of the valve seat using the second sealing element. Moreover, this could also specifically mean that in the closed position, the sealing device contacts the outer chamfer of the valve seat using the first sealing element and the inner chamfer using the second sealing element. Furthermore, this could also specifically mean that in the closed position, the sealing device does not contact the inner chamfer of the valve seat using the first sealing element, and / or does not contact the outer chamfer of the valve seat using the second sealing element.

[0026] For other details regarding bathroom fixtures and fittings, please refer to the description of the valve components.

[0027] According to another aspect, an application scheme is proposed for the valve upper component described herein for easy maintenance and low-friction sealing of piping and / or components of bathroom fixtures. The description of the valve upper component and / or bathroom fixtures can be used to concretize this application. Attached Figure Description

[0028] The invention and its technical field are explained in detail below with reference to the accompanying drawings. It should be noted that the drawings illustrate particularly preferred embodiments of the invention, but the invention is not limited thereto. Here, the same components are given the same reference numerals in the figures. Specifically, exemplarily and schematically:

[0029] Figure 1 A bathroom fixture accessory with a valve assembly having a first variant is shown in longitudinal section;

[0030] Figure 2 A detailed view of the valve seat of a bathroom fixture accessory is shown;

[0031] Figure 3 A detailed view of a portion of the valve components in the first variant is shown;

[0032] Figure 4 A detailed view of a portion of the valve components in the second variant is shown;

[0033] Figure 5 A detailed view of a portion of the valve components in the third variant is shown;

[0034] Figure 6 A detailed view of a portion of the valve assembly in the fourth variant is shown; and

[0035] Figure 7A detailed view of a portion of the valve components in the fifth variant is shown. Detailed Implementation

[0036] Figure 1 A longitudinal section is shown of a bathroom fixture fitting 2 configured as a shut-off valve. The fitting 2 includes a fitting housing 15 having a liquid inlet 20 and a liquid outlet 19. The liquid inlet 20 and liquid outlet 19 are configured to be coaxial with each other and coaxial with respect to the longitudinal axis 21 of the fitting housing 15. A liquid inlet line (not shown) can be connected to the liquid inlet 20, and a liquid outlet line (not shown) can be connected to the liquid outlet 19. For this purpose, the liquid inlet 20 and liquid outlet 19 may each have threads. For example, the threads may be 3 / 4-inch internal threads. The liquid inlet 20 is connected to the liquid outlet 19 via a liquid passage 22. A valve seat 7 for the sealing device 6 of the valve upper component 1 in a first variant is constructed within the fitting housing 15. The valve seat 7 is here configured as annular and extends coaxially with respect to the axis of rotation 5 of the valve stem 4 of the valve upper component 1, parallel to the longitudinal axis 21 of the fitting housing 15. The upper valve component 1 includes a housing 3, which is screwed into a valve bore 24 of a fitting housing 15 via a first thread 23. The housing 3 is configured as a head component. The first thread 23 may be, for example, a 3 / 8-inch thread, a 2 / 1-inch thread, a 3 / 4-inch thread, or a 1-inch thread. The valve bore 24 is configured to be coaxial with respect to the axis of rotation 5 and orthogonal to the longitudinal axis 21 of the fitting housing 15. A sealing device 6 is arranged at the end 25 of the closing element 26 of the upper valve component 1 on the first longitudinal side facing the sealing seat 7. The closing element 26 has a tubular section 27 into which a valve stem 4 extends. The valve stem 4 is connected to the closing element 26 via a second thread 33. Since the valve stem 4 is fixedly connected to the housing 3 of the upper valve component 1 parallel to the axis of rotation 5, the closing element 26, together with the sealing device 6, can be displaced parallel to the axis of rotation 6 by the rotation of the valve stem 4 about the axis of rotation 5. The valve stem 4 can be connected at its end 28 on the second longitudinal side to an actuating element (not shown here, e.g., in the form of an actuating handle), through which the user can rotate the valve stem 4 about the rotation axis 5 to open and / or close the bathroom fixture fitting 2. In the closed position, the sealing device 6 is pressed against the valve seat 7, so that liquid (substantially) cannot flow through the valve seat 7. In the open position, the sealing device 6 is lifted from the valve seat 7, so that liquid can flow through the valve seat 7.

[0037] Figure 2 It shows in Figure 1 A detailed view of the valve upper component 1 of the first variant in the area marked by the first circle 29. The valve seat 7 includes a sleeve-shaped section 34 that runs along the sealing seat axis 32 and towards... Figure 1The sealing device 6 shown extends in the direction of the sealing seat 32. Figure 1 The rotation axis 5 shown extends coaxially. Furthermore, the valve seat 7 has an outer diameter 30 and an inner diameter 31. The outer diameter 30 can be at least 15 mm, preferably 15 mm to 17 mm, and particularly preferably (about) 16 mm. The inner diameter 31 can be at most 12 mm, preferably 11 mm to 12 mm, and particularly preferably (about) 11.5 mm. Additionally, the sealing seat 7 has an upper sealing surface 18, which is a region of the valve seat 7 that is adjacent to... Figure 1 The sealing device 6 of the valve upper component 1 is shown. Here, the upper sealing seat surface 18 is configured in the form of an upper (annular) sealing seat edge. Furthermore, the upper sealing seat surface 18 is configured at the end face 35 of the sleeve-shaped section 34 of the valve seat 7. The valve seat 7 has an outer chamfer 16 and an inner chamfer 17 at its inner edge 36. The outer chamfer 16 is configured to be closer to the inner sealing portion 17 than the inner sealing portion 17. Figure 1 The sealing device 6 of the valve upper component 1 is shown. Furthermore, an outer chamfer 16 is constructed outside the inner chamfer 17 in the radial direction 37 (relative to the sealing seat axis 32) of the valve seat 7. The outer chamfer 16 extends inward in the radial direction 37 from the upper sealing seat surface 18, and the inner chamfer 17 extends outward in the radial direction 37 from the inner surface 38 of the valve seat 7. The outer chamfer 16 and the inner chamfer 17 meet at the intermediate diameter 39 of the valve seat 7. The intermediate diameter 39 can be, for example, 12.5 mm to 13.5 mm, preferably (about) 13 mm. Furthermore, the outer chamfer 16 has a first angle 40 and the inner chamfer 17 has a second angle 41.

[0038] Figure 3 The valve component 1 of the first variant is shown. Figure 1 A detailed view of the portion marked with the second circle 42. Figure 3 Only those located in Figure 1The area of ​​valve component 1 below section 43 shown in the figure. The sealing device 6 is arranged at the end 25 on the first longitudinal side of the sealing element 26 in an annular receiving portion 44 of the sealing element 26, and is secured in the annular receiving portion 44 by a fastening element 45. The fastening element 45 can be a nut, hex nut, screw, or flathead screw. Furthermore, the fastening element 45 can be configured as a pin extending from the sealing element 26. This pin can have a countersunk portion / backcut portion that holds the sealing device 6 in its position. The fastening element 45 is screwed onto a pin 46 of the sealing element 26 extending parallel to the axis of rotation 5 toward the valve seat 7. The sealing device 6 includes a first sealing element 8 made of a first material and a second sealing element 9 made of a second material, wherein the first hardness of the first material is less than the second hardness of the second material. The first sealing element 8 and the second sealing element 9 are configured annularly, wherein the second sealing element 9 is arranged in a groove 13 of the first sealing element 8. The first sealing element 8 has a first outer diameter 10, which is larger than the second outer diameter 11 of the second sealing element 9. Furthermore, both the first sealing element 8 and the second sealing element 9 have an inner diameter 47. The inner diameter 47 can be, for example, 3 mm to 10 mm, preferably 4 mm to 6 mm, and particularly preferably (about) 5 mm. The first sealing element 8 extends in the axial direction 48 with a first length 49, and the second sealing element 9 extends in the axial direction 48 with a second length 50, that is, parallel to the axis of rotation 5. The first length 49 can be, for example, at least 2 mm, preferably 2 mm to 5 mm, and particularly preferably (about) 3.5 mm. The second length 50 can be, for example, a maximum of 4 mm, preferably 0.5 mm to 3 mm, and particularly preferably (about) 1 mm. Furthermore, the second sealing element 9 is configured here in the form of a support piece. The first sealing element 8 and the second sealing element 9 are configured such that the sealing device 6 has a rectangular cross-section 51. During the closing movement of the sealing device 6, that is, when the sealing device 6 moves towards the closed position and / or towards the valve seat 7, the first sealing element 8 contacts the upper sealing surface 18 of the valve seat 7, thereby forming a first sealing surface between the first sealing element 8 and the upper sealing surface 18. As the sealing device 6 continues to move towards the closed position and / or towards the valve seat 7, the first sealing element 8 is elastically deformed by the upper sealing surface 18 until the second sealing element 9 of the sealing device 6 contacts the outer chamfer 16 of the valve seat 7 through its outer edge 52. At this time, a second sealing surface is formed between the second sealing element 9 and the outer chamfer 16. The second sealing surface is initially linear and becomes planar as the sealing device 6 continues to move towards its closed position, thereby closing the valve seat 7. At this time, the second sealing element 9 prevents the first sealing element 8 from being excessively deformed by the upper sealing surface 18, thereby preventing overloading of the first sealing element 8. The hardness of the second material of the second sealing element 9 is particularly achieved so that the second sealing element 9 elastically deforms when the sealing device 6 is in the closed position.

[0039] Figure 4 It shows in Figure 1 A detailed view of the valve upper component 1 of the second variant in the area marked by the second circle 42. The valve upper component 1 of the second variant differs from that of the first variant only in the construction of the sealing device 6. This sealing device 6 also includes a first sealing element 8 made of a first material and a second sealing element 9 made of a second material, wherein the first hardness of the first material is less than the second hardness of the second material. The first sealing element 8 and the second sealing element 9 are constructed in annular shape, wherein the first sealing element 8 is arranged at the circumferential surface 12 of the second sealing element 9. The first sealing element 8 can be made, for example, from a cut hose sealing device or a die-cut component. The first sealing element 8 has a first outer diameter 10, which is larger than the second outer diameter 11 of the second sealing element 9. Furthermore, the first sealing element 8 and the second sealing element 9 have an inner diameter 47. The first sealing element 8 extends in the axial direction 48 with a first length 49 and the second sealing element 49 extends with a second length, wherein the first length 49 and the second length 50 are the same. For example, the first length 49 and the second length 50 can be at least 2 mm, preferably 2 mm to 5 mm, and particularly preferably (about) 3.5 mm. The second sealing element 9 can be constructed as a die-cut part or a cut part, for example. In addition, the second sealing element 9 can be cut from a semi-finished tube. The first sealing element 8 and the second sealing element 9 are configured such that the sealing device 6 has a rectangular cross-section 51. During the closing movement of the sealing device 6, that is, when the sealing device 6 moves in the direction of the closed position and / or in the direction of the valve seat 7, the first sealing element 8 contacts the upper sealing seat surface 18 of the valve seat 7, thereby forming a first sealing surface between the first sealing element 8 and the upper sealing seat surface 18. As the sealing device 6 continues to move in the direction of the closed position and / or in the direction of the valve seat 7, the first sealing element 8 is elastically deformed by the upper sealing seat surface 18 until the second sealing element 9 of the sealing device 6 contacts the outer chamfer 16 of the valve seat 7 through its outer edge 52. At this time, a second sealing surface is formed between the second sealing element 9 and the outer chamfer 16. The second sealing surface is initially linear and becomes planar as the sealing device 6 continues to move toward its closed position, thereby closing the valve seat 7. The main sealing contact between the valve seat 7 and the sealing device 6 can be established, in particular, through the second sealing surface between the second sealing element 9 and the outer chamfer 16, wherein this sealing contact is aided by the first sealing surface between the first sealing element 8 and the upper sealing seat surface 18. At this time, the second sealing element 9 prevents the first sealing element 8 from being excessively deformed due to the upper sealing seat surface 18, thereby preventing overloading of the first sealing element 8. The hardness of the second material of the second sealing element 9 is particularly achieved so that the second sealing element 9 can elastically deform when the sealing device 6 is in the closed position.

[0040] Figure 5 It shows in Figure 1 A detailed view of the valve upper component 1 of the third variant in the area marked by the second circle 42. The valve upper component 1 of the third variant differs from the valve upper component 1 of the first and second variants only in the construction of the sealing device 6. The sealing device 6 includes a first sealing element 8 made of a first material and a second sealing element 9 made of a second material, wherein the first hardness of the first material is less than the second hardness of the second material. The first sealing element 8 and the second sealing element 9 are constructed in annular shape, wherein the first sealing element 8 is arranged at the circumferential surface 12 of the second sealing element 9. The first sealing element 8 is here constructed in the form of an O-ring. The cross-section 51 of the first sealing element 8 has a cross-sectional diameter 53. The cross-sectional diameter 53 can be, for example, at least 1 mm, preferably 1 mm to 5 mm, and particularly preferably (about) 3.5 mm. The second sealing element 9 is constructed in the form of a support ring, which holds the first sealing element 8 and prevents the first sealing element 8 from separating from the closing element 26. The second sealing element 9 can be constructed, for example, as a die-cut part and has a second diameter. The second diameter can be, for example, 12 mm to 13 mm, preferably (about) 12.5 mm. During the closing movement of the sealing device 6, that is, when the sealing device 6 moves towards the closed position and / or towards the valve seat 7, the first sealing element 8 contacts the outer chamfer 16 of the valve seat 7, thereby forming a first sealing surface between the first sealing element 8 and the outer chamfer 16. As the sealing device 6 continues to move towards the closed position and / or towards the valve seat 7, the first sealing element 8 is elastically deformed by the outer chamfer 16 until the second sealing element 9 of the sealing device 6 contacts the inner chamfer 17 of the valve seat 7 through its outer edge 52. At this time, a second sealing surface is formed between the second sealing element 9 and the outer chamfer 16. The second sealing surface is initially linear and becomes planar as the sealing device 6 continues to move towards its closed position, thereby closing the valve seat 7. The primary sealing contact between the valve seat 7 and the sealing device 6 can be established, in particular, by the second sealing surface between the second sealing element 9 and the inner chamfer 17, wherein this sealing contact is aided by the first sealing surface between the first sealing element 8 and the outer chamfer 16. At this point, the second sealing element 9 prevents excessive deformation of the first sealing element 8 due to the outer chamfer 16, thereby preventing overloading of the first sealing element 8. The hardness of the second material of the second sealing element 9 specifically ensures that the second sealing element 9 elastically deforms when the sealing device 6 is in the closed position. Furthermore, the second sealing element 9 has multiple ventilation channels 14 through which ventilation can be provided for the space 54 between the first sealing element 8 and the sealing element 26. This prevents the formation of a vacuum in this space 54. The ventilation channels 14 extend parallel to the axis of rotation 5, passing entirely through the second sealing element 9.

[0041] Figure 6 It shows in Figure 1A detailed view of the valve upper component 1 of the fourth variant, within the area marked by the second circle 42. The valve upper component 1 of the fourth variant differs from that of the valve upper component 1 of the first to third variants only in the construction of the sealing device 6. This sealing device 6 also includes a first sealing element 8 made of a first material and a second sealing element 9 made of a second material, wherein the first hardness of the first material is less than the second hardness of the second material. The first sealing element 8 and the second sealing element 9 are constructed in annular shape, wherein the first sealing element 8 is arranged at the circumferential surface 12 of the second sealing element 9. The first sealing element 8 has a first outer diameter 10, and the second sealing element 9 has a second outer diameter 11. Furthermore, the first sealing element 8 and the second sealing element 9 have an inner diameter 47. The inner diameter 47 can be, for example, 3 mm to 10 mm, preferably 4 mm to 6 mm, and particularly preferably (about) 5 mm. Furthermore, the first sealing element 8 has a first length 49 parallel to the rotation axis 5, and the second sealing element 9 has a second length 50 parallel to the rotation axis 5, wherein the first length 49 and the second length 50 are identical. The first length 49 and the second length 50 can be at least 2 mm, preferably 2 mm to 5 mm, and particularly preferably (about) 3.5 mm. The first sealing element 8 can be manufactured as a die-cut part and / or without a countersunk portion. The cross-section 51 of the first sealing element 8 has a V-shaped region 55, which has a third angle 56. The angle 56 can be, for example, 20° to 150°, preferably 30° to 50°, and particularly preferably (about) 40°. The second sealing element 9 has a corresponding V-shaped groove 13 on its circumferential surface 12, in which the first sealing element 8 is arranged. The first sealing element 8 is snapped onto the second sealing element 9. Thus, not only the first sealing element 8 but also the second sealing element 9 are connected to the sealing element 26 in a non-removable manner by the fastening element 45. The second sealing element 9 can be constructed as a die-cut part and / or without a countersunk portion. The first sealing element 8 and the second sealing element 9 are configured such that the sealing device 6 has a rectangular cross-section 51. Furthermore, the first sealing element 8 and the second sealing element 9 are configured symmetrically, so that no special alignment is required when assembling the valve upper component 1. During the closing movement of the sealing device 6, that is, when the sealing device 6 moves towards the closed position and / or towards the valve seat 7, the first sealing element 8 contacts the upper sealing seat surface 18 of the valve seat 7, thereby forming a first sealing surface between the first sealing element 8 and the upper sealing seat surface 18. As the sealing device 6 continues to move towards the closed position and / or towards the valve seat 7, the first sealing element 8 is elastically deformed by the upper sealing seat surface 18 until the second sealing element 9 of the sealing device 6 contacts the outer chamfer 16 of the valve seat 7 through its outer edge 52.Here, a second sealing surface is formed between the second sealing element 9 and the outer chamfer 16. This second sealing surface is initially linear and becomes planar as the sealing device 6 continues to move towards its closed position, thereby closing the valve seat 7. The primary sealing contact between the valve seat 7 and the sealing device 6 is established, in particular, by the second sealing surface between the second sealing element 9 and the outer chamfer 16, which is aided by the first sealing surface between the first sealing element 8 and the upper sealing seat surface 18. In this case, the second sealing element 9 prevents excessive deformation of the first sealing element 8 due to the upper sealing seat surface 18, thereby preventing overloading of the first sealing element 8. The hardness of the second material of the second sealing element 9 is particularly important in achieving elastic deformation of the second sealing element 9 when the sealing device 6 is in the closed position. Specifically, the sidewall 57 of the groove 13 of the second sealing element 9 is elastically deformable.

[0042] Figure 7 It shows in Figure 1A detailed view of the valve upper component 1 of the fifth variant, within the area marked by the second circle 42. The valve upper component 1 of the fifth variant differs from that of the valve upper component 1 of the first to fourth variants only in the construction of the sealing device 6. This sealing device 6 includes a first sealing element 8 made of a first material and a second sealing element 9 made of a second material, wherein the first hardness of the first material is less than the second hardness of the second material. The first sealing element 8 and the second sealing element 9 are configured annularly, wherein the first sealing element 8 is arranged in a groove 13 of the second sealing element 9. The first sealing element 8 has a first outer diameter 10, and the second sealing element 9 has a second outer diameter 11, wherein the first outer diameter 10 and the second outer diameter 11 are the same. The first outer diameter 10 and the second outer diameter 11 can be, for example, at least 15 mm, preferably 15 mm to 19 mm, and particularly preferably (about) 17 mm. Furthermore, the first sealing element 8 and the second sealing element 9 have an inner diameter 47. The inner diameter 47 can be, for example, 3 mm to 10 mm, preferably 4 mm to 6 mm, and particularly preferably (about) 5 mm. The first sealing element 8 extends in the axial direction 48 with a first length 49 and the second sealing element 9 extends in the second length 50, that is, parallel to the axis of rotation 5. The first length 49 may be at least 2 mm, preferably 2 mm to 5 mm, and particularly preferably (about) 2.5 mm. The second length 50 may be at least 3 mm, preferably 3 mm to 5 mm, and particularly preferably (about) 3.8 mm. Furthermore, the first sealing element 8 may be constructed as a die-cut part and / or without a countersunk portion. Furthermore, the second sealing element 9 is constructed in the form of a disc. The second sealing element 9 may be constructed as a die-cut part and / or without a countersunk portion. The second sealing element 9 has an outer contour 58 that follows the outer chamfer 16 of the valve seat 7 and the contour of the upper sealing surface 18 of the valve seat 7. Thus, during the closing movement of the sealing device 6, no line contact is generated between the second sealing element 9 and the valve seat 7 upon initial contact, resulting in a lower pressure per unit area. As the sealing device 6 continues to move toward the closed position, the second sealing element 9 is deformed such that it rolls over the upper sealing surface 18 of the valve seat 7, and line contact is formed at this time. The first sealing element 8 is arranged between the second sealing element 9 and the closing element 26, and in the valve upper component 1 of the fifth variant, it is particularly used as a return spring or rebound aid for the second sealing element 9.

[0043] This invention can reduce wear on sealing devices.

[0044] List of reference numerals

[0045] 1 Valve upper components

[0046] 2 Bathroom equipment accessories

[0047] 3 shells

[0048] 4 valve stems

[0049] 5 Rotation axis

[0050] 6 sealing devices

[0051] 7 valve seats

[0052] 8 First sealing element

[0053] 9 Second sealing element

[0054] 10 First outer diameter

[0055] 11 Second outer diameter

[0056] 12 weeks

[0057] 13 slots

[0058] 14 ventilation ducts

[0059] 15 Accessory Housing

[0060] 16 external chamfer

[0061] 17 inner chamfer

[0062] 18 Upper seal seat surface

[0063] 19 Liquid Outlets

[0064] 20 liquid inlets

[0065] 21. Longitudinal axis of the shell

[0066] 22 Liquid Channels

[0067] 23 First Thread

[0068] 24 valve holes

[0069] 25 End of the first longitudinal side

[0070] 26 Enclosed Components

[0071] 27 tubular sections

[0072] 28 End of the second longitudinal side

[0073] 29 First Circle

[0074] 30 valve seat outer diameter

[0075] 31 Valve seat inner diameter

[0076] 32 Sealing Seat Axis

[0077] 33 Second Thread

[0078] 34 sets of sections

[0079] 35 end face

[0080] 36 inner edges

[0081] 37 Radial direction

[0082] 38 inner surface

[0083] 39 Middle Diameter

[0084] 40 First corner

[0085] 41 The second corner

[0086] 42 Second Circle

[0087] 43 Section

[0088] 44 Reception Department

[0089] 45 Fastening Components

[0090] 46 sales

[0091] 47 inner diameter

[0092] 48 axial direction

[0093] 49 First Length

[0094] 50 Second Length

[0095] 51 cross-section

[0096] 52 outer edge

[0097] 53 cross-sectional diameter

[0098] 54 Space

[0099] 55 V-shaped area

[0100] 56 The third corner

[0101] 57 sidewalls

[0102] 58 Outer contour

Claims

1. A valve upper component (1) for a bathroom fixture accessory (2), said valve upper component having at least: - Shell (3) - Valve stem (4), which is at least partially arranged in the housing (3) and is rotatable relative to the housing (3) about a rotation axis (5). - A sealing device (6) for at least partially closing the valve seat (7) of the bathroom fixture fitting (2), wherein, The sealing device (6) can be moved between an open position and a closed position by means of a valve stem (4) parallel to the rotation axis (5). The sealing device (6) has a first sealing element (8) made of a first material and a second sealing element (9) made of a second material. The first hardness of the first material is less than the second hardness of the second material. When the sealing device (6) of the valve upper component (1) is closed, the first sealing element (8) of the sealing device (6) contacts the upper sealing seat surface (18) of the valve seat (7), and then the second sealing element (9) of the sealing device (6) contacts the chamfer (16, 17) of the valve seat (7). The valve seat (7) has an outer chamfer (16) and an inner chamfer (17).

2. The valve component (1) according to claim 1, wherein, The first sealing element (8) or the second sealing element (9) is configured as an annular ring.

3. The valve upper component (1) according to claim 1 or 2, wherein, The first sealing element (8) has a first outer diameter (10), which is larger than the second outer diameter (11) of the second sealing element (9).

4. The valve upper component (1) according to claim 1 or 2, wherein, The first sealing element (8) is arranged on the circumferential surface (12) of the second sealing element (9).

5. The valve upper component (1) according to claim 1 or 2, wherein, The second sealing element (9) is arranged in the groove (13) of the first sealing element (8).

6. The valve upper component (1) according to claim 1 or 2, wherein, The second sealing element (9) has at least one ventilation channel (14).

7. A bathroom fixture accessory (2), said bathroom fixture accessory having at least: - Fitting housing (15), valve seat (7) is arranged in the fitting housing; and - The valve upper component (1) for at least partially closing the valve seat (7) according to any one of the preceding claims, wherein, When the sealing device (6) of the valve component (1) is closed, the first sealing element (8) of the sealing device (6) contacts the upper sealing seat surface (18) of the valve seat (7), and then the second sealing element (9) of the sealing device (6) contacts the chamfer (16, 17) of the valve seat (7), wherein the valve seat (7) has an outer chamfer (16) and an inner chamfer (17).

8. The bathroom fixture accessory (2) according to claim 7, wherein, During the closing movement of the sealing device (6) of the valve component (1), the first sealing element (8) of the sealing device (6) contacts the outer chamfer (16) of the valve seat (7), and then the second sealing element (9) of the sealing device (6) contacts the inner chamfer (17) of the valve seat (7).

Images