Push-button valve for a sanitary fitting

Abstract

The invention relates to a push-button valve (1) for a sanitary fitting, at least comprising: • - a valve housing (2) having a cold water inlet (3) for cold water, a hot water inlet (4) for hot water, a mixed water outlet (5) for mixed water, and a mixing chamber (6) for mixing the cold water and hot water to form the mixed water, the valve housing (2) extending along a housing longitudinal axis (7); • - a valve body rod (8) which can be moved parallel to a rod longitudinal axis (9) of the valve body rod (8) between a closed position (10), in which the push-button valve (1) is closed, and an open position (11), in which the push-button valve (1) is open; and • - a quantity-regulating device (12) having an inner sleeve (13) and an outer sleeve (14), the inner sleeve (13) being movable relative to the outer sleeve (14), in particular parallel to a sleeve longitudinal axis (15) of the quantity-regulating device (12), in order to set a mixed water temperature of the mixed water, and the inner sleeve (13) being movable relative to the outer sleeve (14), in particular about an axis of rotation (16), in order to set a volumetric flow rate of the mixed water.

Description

[0001] Push-button valve for a sanitary fitting

[0002] The present invention relates to a push-button valve for a sanitary fitting. Such push-button valves are used in particular for controlling the water flow through a sanitary fitting.

[0003] A push-button valve is a device used in connection with plumbing installations in bathrooms, kitchens, or similar applications. It is designed to control the flow of water using a pushbutton. Operation is achieved by pressing a pushbutton or button, which activates a mechanism inside the push-button valve that either allows or stops the flow of water. The push-button valve can be located at least partially within the plumbing fixture.

[0004] Push-button valves are known that, in addition to allowing or stopping the water flow, allow either a water temperature or a water flow rate to be adjusted when the push-button valve is open. However, these push-button valves cannot control the water temperature and flow rate simultaneously.

[0005] The object of the invention is therefore to at least partially solve the problems described with reference to the prior art and, in particular, to provide a push-button valve for a sanitary fitting with which the water temperature and the volume flow of the water can be adjusted.

[0006] This object is achieved with a push-button valve according to the features of the independent patent claim. Further advantageous embodiments of the invention are specified in the dependent patent claims. It should be noted that the features listed individually in the dependent patent claims can be combined with one another in any technologically reasonable manner and define further embodiments of the invention. Furthermore, the features listed in the patent claims are further specified and explained in the description, with further preferred embodiments of the invention being presented.

[0007] A push-button valve for a sanitary fitting contributes to this, which has at least the following:

[0008] - a valve housing with a cold water inlet for cold water, a hot water inlet for hot water, a mixing chamber for mixing the cold water and the hot water to form mixed water and a mixed water outlet for the mixed water, wherein the valve housing extends along a housing longitudinal axis;

[0009] - a valve body rod which is adjustable parallel to a longitudinal axis of the valve body rod between a closed position in which the push-button valve is closed and an open position in which the push-button valve is open; and

[0010] - a quantity control device with an inner sleeve and an outer sleeve, wherein the inner sleeve is adjustable relative to the outer sleeve for adjusting a mixed water temperature of the mixed water, in particular parallel to a sleeve longitudinal axis of the quantity control device, and wherein the inner sleeve is adjustable relative to the outer sleeve for adjusting a volume flow of the mixed water, in particular about a rotation axis.

[0011] The push-button valve can be used in particular for a sanitary fitting with which a liquid, in particular water, can be dispensed as needed in a shower, a bathtub and / or a washbasin. The sanitary fitting can, for example, be a concealed installation unit. The concealed installation unit can be fastened in particular within a wall opening, a recess in a wall or to another support. Such concealed installation units have proven particularly useful in lightweight walls and pre-wall systems. Cold and hot water can be supplied to the push-button valve or the sanitary fitting. The cold water can be supplied to the push-button valve or the sanitary fitting in particular from a cold water source, such as a public water supply network, and / or a cold water supply line.The hot water can be supplied to the sanitary fitting, in particular from a hot water source, such as a boiler or central heating system, and / or via a hot water supply line. The cold water can have a cold water temperature that is, in particular, a maximum of 25 °C (Celsius), preferably 1 °C to 25 °C, particularly preferably 5 °C to 20 °C. The hot water can have a hot water temperature that is, in particular, a maximum of 90 °C, preferably 25 °C to 90 °C, particularly preferably 55 °C to 65 °C.

[0012] The push-button valve has a valve housing. The valve housing can be made at least partially of plastic and / or metal, such as brass. The valve housing can be at least partially tubular and / or extend along a, in particular straight, longitudinal housing axis. The longitudinal housing axis can be a center axis of the valve housing. The valve housing can extend from a first longitudinal housing end to a second longitudinal housing end. The valve housing can have a housing length of, for example, 50 mm [millimeters] to 150 mm (in particular parallel to the longitudinal housing axis).

[0013] The valve housing has (at least) one cold water inlet for the cold water and (at least) one hot water inlet for the hot water. The cold water inlet and / or the hot water inlet can be formed in a housing wall of the valve housing. The cold water inlet and / or the hot water inlet can extend in a radial direction through the housing wall of the valve housing. In particular, the cold water inlet and / or the hot water inlet are not formed on one of the longitudinal housing ends of the valve housing. The cold water inlet and / or the hot water inlet can be slot-shaped and / or extend in a circumferential direction (in particular around the housing longitudinal axis).

[0014] A mixing chamber is formed in the valve housing. Cold water can be supplied to the mixing chamber via the cold water inlet, and hot water via the hot water inlet. The cold water and hot water can be mixed in the mixing chamber to form mixed water. The valve housing has a mixed water outlet for the mixed water. The mixed water can be discharged via the mixed water outlet, in particular to the area surrounding the push-button valve or to the sanitary fitting. The mixed water outlet can be formed at the first longitudinal housing end and / or at a first longitudinal valve end of the push-button valve.

[0015] The push-button valve has a valve body rod that extends along a, in particular straight, longitudinal rod axis. The longitudinal rod axis can be a center axis of the valve body rod. The valve body rod can be made at least partially of plastic and / or metal, such as brass. The valve body rod can have a rod length of, for example, 50 mm to 150 mm (in particular parallel to the longitudinal rod axis) and / or a rod diameter of, for example, 5 mm to 20 mm (in particular orthogonal to the longitudinal rod axis). The longitudinal rod axis runs in particular parallel or coaxially to the housing longitudinal axis. The valve body rod can extend at least partially through the valve housing and / or at least partially through the mixing chamber.The valve body rod is adjustable parallel to the rod's longitudinal axis between a closed position, in which the push-button valve is closed, and an open position, in which the push-button valve is open. In the closed position, the valve body rod can close the mixed water outlet and / or the valve body rod can extend at least partially into the mixed water outlet. In the closed position, the valve body rod, in particular with a first longitudinal rod end of the valve body rod, can extend through a mixed water outlet seal of the mixed water outlet, so that the mixed water outlet is closed. The mixed water outlet seal can be designed as an O-ring. In the open position, the valve body rod releases the mixed water outlet, so that the mixed water from the mixing chamber can flow out of the push-button valve via the mixed water outlet.

[0016] The valve body rod can be adjusted between the closed position and the open position by a push button on the push button valve. The push button can be arranged on a second longitudinal valve end of the push button valve. The push button can be pressed or moved by a user of the push button valve, in particular parallel to the longitudinal axis of the housing and / or parallel to the longitudinal axis of the rod. The valve body rod can be adjusted between the closed position and the open position with the help of a ballpoint pen mechanism. Such ballpoint pen mechanisms are known and are widespread as locking tension mechanisms. Locking tension mechanisms are gears or devices that assume two stable positions and can hold them without external forces. The ballpoint pen mechanism can be used to adjust a ballpoint pen refill, for example, in a ballpoint pen. The push button can be adjusted via the ballpoint pen mechanism orbe connected to the valve body rod via the locking clamping mechanism. The ballpoint pen mechanism or the locking clamping mechanism can be actuated via the push button. By pressing the push button and / or the ballpoint pen mechanism or the locking clamping mechanism, the valve body rod can be adjusted into the closed position and the open position. The ballpoint pen mechanism or the locking clamping mechanism can comprise a pressure element and a feed element that can be adjusted between a first position and a second position in a toothed guide, in particular parallel to the longitudinal axis of the housing and / or the longitudinal axis of the rod. Alternatively, the valve body rod can be actuated by means of a lever or a rotary element.

[0017] The push-button valve has a quantity control device. The quantity control device comprises an inner sleeve and an outer sleeve. The inner sleeve and the outer sleeve extend in particular along a, in particular straight, sleeve longitudinal axis. The sleeve longitudinal axis can be a center axis of the inner sleeve and / or the outer sleeve. The sleeve longitudinal axis can run parallel or coaxially to the housing longitudinal axis and / or the rod longitudinal axis. The inner sleeve and / or the outer sleeve are at least partially tubular and / or extend coaxially to one another. The inner sleeve is in particular arranged in the outer sleeve. The mixing chamber can be at least partially formed in the inner sleeve and / or the outer sleeve. The inner sleeve and / or the outer sleeve can at least partially delimit the mixing chamber.The inner sleeve can have (in particular parallel to the sleeve longitudinal axis) an inner sleeve length of, for example, 10 mm to 60 mm and / or the outer sleeve can have (in particular parallel to the sleeve longitudinal axis) an outer sleeve length of, for example, 10 mm to 80 mm. The outer sleeve can have (in particular orthogonal to the sleeve longitudinal axis) an outer sleeve outer diameter of, for example, 20 mm to 50 mm. The outer sleeve outer diameter can (essentially) correspond to a housing inner diameter of the valve housing. The outer sleeve can have (in particular orthogonal to the sleeve longitudinal axis) an outer sleeve inner diameter of, for example, 15 mm to 45 mm. The inner sleeve can have (in particular orthogonal to the sleeve longitudinal axis) an inner sleeve outer diameter that (essentially) corresponds to the outer sleeve inner diameter of the outer sleeve.The inner sleeve can have (in particular orthogonal to the sleeve longitudinal axis) an inner sleeve diameter of, for example, 5 mm to 40 mm.

[0018] The inner sleeve is adjustable relative to the outer sleeve to set a mixed water temperature of the mixed water, in particular parallel to the sleeve's longitudinal axis. By adjusting the inner sleeve, in particular parallel to the sleeve's longitudinal axis, in particular a mixing ratio between the cold water and the hot water in the mixing chamber can be adjusted. The inner sleeve can be adjustable between a hot water position and a cold water position. By adjusting the inner sleeve towards the cold water position, a cold water volume flow with which the cold water can flow into the mixing chamber can be increased and a hot water volume flow with which the hot water can flow into the mixing chamber can be reduced. In the cold water position of the inner sleeve, the cold water volume flow can be maximum and the hot water volume flow minimum, in particular zero. In the cold water position, the mixed water temperature of the mixed water can correspond to the cold water temperature.By adjusting the inner sleeve toward the hot water position, the hot water flow rate at which the hot water can flow into the mixing chamber can be increased and the cold water flow rate at which the cold water can flow into the mixing chamber can be reduced. In the hot water position of the inner sleeve, the hot water flow rate can be maximum and the cold water flow rate minimum, in particular zero. In the hot water position, the mixed water temperature can correspond to the hot water temperature.

[0019] The inner sleeve is adjustable relative to the outer sleeve, in particular about a rotation axis, in order to adjust a volume flow of the mixed water. In particular, the inner sleeve is adjustable relative to the outer sleeve, in particular about the rotation axis, in order to adjust the volume flow at which the mixed water can be discharged via the mixed water outlet when the valve body rod is (fully) in the open position and / or the push-button valve is (fully) opened. The rotation axis extends in particular parallel or coaxially to the housing longitudinal axis, to the rod longitudinal axis and / or to the sleeve longitudinal axis. The inner sleeve is rotatable, in particular about the rotation axis, in particular between a first volume position and a second volume position, for example with a rotation angle of 10° to 90°, preferably 10° to 45°. When adjusting orBy rotating the inner sleeve toward the first volume position, the volume flow of the mixed water can be reduced, in particular continuously, and / or by adjusting or rotating the inner sleeve toward the second volume position, the volume flow of the mixed water can be increased, in particular continuously. In the first volume position, the volume flow of the mixed water can be minimal and / or in the second volume position, it can be maximal.

[0020] Alternatively, the inner sleeve can be rotatable about the rotation axis to adjust the mixed water temperature and adjustable relative to the outer sleeve parallel to the sleeve's longitudinal axis to adjust the mixed water flow rate. The flow control device allows adjustment of both the mixed water temperature and the mixed water flow rate.

[0021] The push-button valve can have a temperature adjustment element for adjusting the inner sleeve, in particular parallel to the sleeve's longitudinal axis. The temperature adjustment element can be actuated and / or grasped, in particular, by the user of the push-button valve. The temperature adjustment element can be at least partially annular, tubular, or sleeve-shaped. The temperature adjustment element can be arranged at the second longitudinal housing end and / or at the second longitudinal valve end. The temperature adjustment element can be arranged coaxially to the housing's longitudinal axis, the rod's longitudinal axis, the sleeve's longitudinal axis, and / or the rotation axis. The temperature adjustment element can be connected to the inner sleeve via a driver and / or a slide. The driver and / or the slide can be arranged on the valve body rod. The slide can be arranged on the driver.The driver and / or the slider can be arranged coaxially to the valve body rod and / or the inner sleeve.

[0022] The temperature adjustment element can be rotatable about the rotation axis. When rotating about the rotation axis, the temperature adjustment element can be adjustable parallel to the housing longitudinal axis, the rod longitudinal axis, and / or the sleeve longitudinal axis.

[0023] The temperature adjustment element can be designed as a screw nut. The temperature adjustment element can be arranged with an internal thread on an external thread of the valve housing.

[0024] The push-button valve can have a volume adjustment element for adjusting the inner sleeve, in particular about the rotation axis. The volume adjustment element can be actuated and / or grasped, in particular, by the user of the push-button valve. The volume adjustment element can be at least partially annular, tubular, or sleeve-shaped. The volume adjustment element can be arranged at the second longitudinal housing end and / or at the second longitudinal valve end. The volume adjustment element can be arranged coaxially to the housing longitudinal axis, the rod longitudinal axis, the sleeve longitudinal axis, and / or the rotation axis. The volume adjustment element can be arranged, in particular directly, next to the temperature adjustment element. The volume adjustment element is, in particular, not adjustable parallel to the housing longitudinal axis, the rod longitudinal axis, the sleeve longitudinal axis, and / or the rotation axis.The volume adjustment element can be connected to the inner sleeve via a connecting element and / or the driver. The connecting element can be arranged on the valve body rod and / or, in particular, directly adjacent to the driver. The connecting element can extend through the housing wall of the valve housing and / or to the volume adjustment element.

[0025] The volume adjustment element can be rotatable about the rotation axis. By rotating the volume adjustment element, the inner sleeve can be rotated about the rotation axis, in particular via the connecting element and / or the driver.

[0026] The volume adjustment element can be connected to the inner sleeve via a coupling, so that the inner sleeve can be adjusted relative to the volume adjustment element parallel to the sleeve's longitudinal axis. The coupling allows rotational forces to be transmitted to the inner sleeve while the inner sleeve is adjusted translationally or parallel to the sleeve's longitudinal axis and / or while the inner sleeve is adjusted between the cold water position and the hot water position. The coupling can be formed between the connecting element and the driver. The coupling can be formed at least partially by first teeth of the driver and second teeth of the connecting element. The first teeth of the driver and the second teeth of the connecting element can mesh with one another.

[0027] The inner sleeve and / or the outer sleeve can be made at least partially of ceramic. The outer sleeve can have (at least) a first cold water opening and (at least) a first hot water opening, and the inner sleeve can have (at least) a second cold water opening and (at least) a second hot water opening. The first cold water opening and the first hot water opening can have a first distance (in particular parallel to the sleeve's longitudinal axis) and / or the second cold water opening and the second hot water opening can have a second distance (in particular parallel to the sleeve's longitudinal axis). The first distance can be greater than the second distance.The outer sleeve is arranged in the valve housing in such a way that the first cold water opening (in particular in the radial direction) is at least partially aligned with the cold water inlet of the valve housing and / or the first hot water opening (in particular in the radial direction) is at least partially aligned with the hot water inlet of the valve housing.

[0028] The second cold water opening and the second hot water opening of the inner sleeve are designed in particular such that a cold water flow cross-section for the cold water formed between the first cold water opening and the second cold water opening increases and a hot water flow cross-section for the hot water formed between the first hot water opening and the second hot water opening decreases when the inner sleeve is adjusted parallel to the sleeve longitudinal axis in the direction of the cold water position.The second cold water opening and the second hot water opening of the inner sleeve are designed in particular such that the cold water flow cross-section for the cold water formed between the first cold water opening and the second cold water opening decreases and the hot water flow cross-section for the hot water formed between the first hot water opening and the second hot water opening increases when the inner sleeve is adjusted parallel to the sleeve longitudinal axis in the direction of the hot water position.

[0029] The second cold water opening and the second hot water opening of the inner sleeve are designed in particular such that the cold water flow cross-section for the cold water formed between the first cold water opening and the second cold water opening and the hot water flow cross-section for the hot water formed between the first hot water opening and the second hot water opening decrease when the inner sleeve is rotated about the axis of rotation in the direction of the first volume position.The second cold water opening and the second hot water opening of the inner sleeve are designed in particular such that the cold water flow cross-section for the cold water formed between the first cold water opening and the second cold water opening and the hot water flow cross-section for the hot water formed between the first hot water opening and the second hot water opening increase when the inner sleeve is rotated about the axis of rotation in the direction of the second volume position.

[0030] The first cold water opening, the first hot water opening, the second cold water opening, and / or the second hot water opening can be slot-shaped. The first cold water opening, the first hot water opening, the second cold water opening, and / or the second hot water opening can extend in the circumferential direction around the sleeve's longitudinal axis.

[0031] The invention and the technical environment are explained in more detail below with reference to the figures. It should be noted that the figures show a particularly preferred embodiment of the invention, but are not limited thereto. Identical components in the figures are provided with the same reference numerals. They show, by way of example and schematically:

[0032] Fig. 1: a push-button valve with a valve body rod in a closed position in a longitudinal section;

[0033] Fig. 2: the push-button valve with the valve body rod in an open position in the longitudinal section; Fig. 3: the push-button valve with an inner sleeve in a hot water position in the longitudinal section;

[0034] Fig. 4: the push-button valve with the inner sleeve in a cold water position in the longitudinal section;

[0035] Fig. 5: the push-button valve with the inner sleeve in a first volume position in the longitudinal section;

[0036] Fig. 6: a quantity control device with the inner sleeve and an outer sleeve in a perspective view;

[0037] Fig. 7: the volume control device with the inner sleeve in the first volume position in a side view; and

[0038] Fig. 8: the volume control device with the inner sleeve in a second volume position in side view.

[0039] Fig. 1 shows a push-button valve 1 in a longitudinal section. The push-button valve 1 comprises a valve housing 2, which is tubular and extends along a (straight) housing longitudinal axis 7. The valve housing 2 has a cold water inlet 3 for cold water and a hot water inlet 4 for hot water. The cold water inlet 3 and the hot water inlet 4 are formed in a housing wall 24 of the valve housing 2 and extend in a slot-like manner or in a circumferential direction around the housing longitudinal axis 7. A mixing chamber 6 is formed in the valve housing 2, to which cold water can be supplied via the cold water inlet 3 and hot water via the hot water inlet 4. In the mixing chamber 6, the cold water and the hot water can mix to form mixed water. The valve housing 2 has a mixed water outlet 5 at a first longitudinal valve end 25, via which the mixed water from the

[0040] Push button valve 1 can flow.

[0041] The push-button valve 1 has a valve body rod 8 that extends along a (straight) longitudinal rod axis 9 and coaxial with the housing longitudinal axis 7. In Fig. 1, the valve body rod 8 is in a closed position 10, in which the valve body rod 8 closes the mixed water outlet 5, so that no mixed water can flow out of the mixing chamber 6 via the mixed water outlet 5. In the closed position 10, the valve body rod 8 extends with a first longitudinal rod end 27 through a mixed water outlet seal 29, so that the mixed water outlet 5 is closed.

[0042] A first spring 30 presses a second longitudinal rod end 28 of the valve body rod 8 against a ballpoint pen mechanism 32. The first spring 30 is tensioned between an inner wall 33 of the mixing chamber 6 and a retaining ring 34, which sits in a rod groove 35 of the valve body rod 8. The ballpoint pen mechanism 32 comprises a pressure element 36 and a feed element 37, which is adjustable in a toothed guide 38 between a first position 39 shown in Fig. 1 and a second position 40 shown in Fig. 2. The feed element 37 is adjustable between the first position 39 and the second position 40 by pressing the pressure element 36. The pressure element 36 is connected to a push button (not shown here), via which the pressure element 36 can be pressed or adjusted parallel to the longitudinal axis 7 of the housing.

[0043] Fig. 2 shows the push-button valve 1 after the advance element 37 has been adjusted by pressing the pressure element 36 in the direction of a second longitudinal valve end 26 of the push-button valve 1. As a result, the valve body rod 8 has been adjusted by the first spring 30 from the closed position 10 shown in Fig. 1, parallel to the rod longitudinal axis 9, into an open position 11, so that the valve body rod 8 no longer extends through the mixed water outlet seal 29 and the mixed water outlet 5 is open. In the open position 11, mixed water can flow out of the mixing chamber 6 via the mixed water outlet 5. By pressing the pressure element 36 again, the valve body rod 8 can be adjusted back to the closed position 10 shown in Fig. 1.

[0044] The push-button valve 1 comprises a flow control device 12 with an inner sleeve 13 and an outer sleeve 14. The outer sleeve 14 has an outer sleeve outer diameter 41 that (essentially) corresponds to a housing inner diameter 42 of the valve housing 2. The inner sleeve 13 is arranged in the outer sleeve 14 and has an outer diameter 43 that (essentially) corresponds to an inner diameter 44 of the outer sleeve 14. The inner sleeve 13 and the outer sleeve 14 are arranged coaxially to one another and extend along a (straight) sleeve longitudinal axis 15. The mixing chamber 6 is formed in the inner sleeve 13. The inner sleeve 13 at least partially delimits the mixing chamber 6. The outer sleeve 14 has a first cold water opening 20 for cold water and a first hot water opening 22 for hot water.The first cold water opening 20 is aligned (at least partially and / or orthogonally to the housing's longitudinal axis 7) with the cold water inlet 3 of the valve housing 2, so that cold water can flow into the mixing chamber 6 via the first cold water opening 20, and the first hot water opening 22 is aligned (at least partially and / or orthogonally to the housing's longitudinal axis 7) with the hot water inlet 4 of the valve housing 2, so that hot water can flow into the mixing chamber 6 via the first hot water opening 22. The inner sleeve 13 has a second cold water opening 21 for cold water and a second hot water opening 23 for hot water. Cold water can flow into the mixing chamber 6 if the second cold water opening 21 of the inner sleeve 13 (orthogonally to the sleeve's longitudinal axis 15) is at least partially aligned with the first cold water opening 20 of the outer sleeve 14.Hot water can flow into the mixing chamber 6 when the second hot water opening 23 of the inner sleeve 13 (orthogonal to the sleeve longitudinal axis 15) is at least partially aligned with the first hot water opening 22 of the outer sleeve 14. Fig. 3 shows the push-button valve 1 in longitudinal section, wherein the inner sleeve 13 is in a hot water position 45. In the hot water position 45, the inner sleeve 13 is adjusted relative to the outer sleeve 14, in particular maximally, in the direction of the second longitudinal valve end 26 of the push-button valve 1. In the hot water position 45, the second hot water opening 23 of the inner sleeve 13 is aligned with the first hot water opening 22 of the outer sleeve 14 (at least partially), so that hot water can flow into the mixing chamber 6 via the hot water inlet 4 of the valve housing 2 and the hot water openings 22, 23.In the hot water position 45, the second cold water opening 21 of the inner sleeve 13 is not aligned with the first cold water opening 20 of the outer sleeve 14, so that no cold water can flow into the mixing chamber 6 via the cold water inlet 3 of the valve housing 2 and the cold water openings 20, 21. In the hot water position 45, only hot water and no cold water can flow into the mixing chamber 6. A mixed water temperature of the mixed water in the mixing chamber 6 can therefore be maximum or correspond to a hot water temperature of the hot water. The first cold water opening 20 and the first hot water opening 22 have a first distance 51 (parallel to the sleeve longitudinal axis 15), and the second cold water opening 21 and the second hot water opening 23 have a second distance 52 (parallel to the sleeve longitudinal axis 15), which is smaller than the first distance 51.

[0045] The inner sleeve 13 is connected to a temperature adjustment element 17 via a driver 47 and a slide 48. The temperature adjustment element 17 is designed as a screw nut and has an internal thread 49. The temperature adjustment element 17 is arranged with the internal thread 49 on an external thread 50 of the valve housing 2 and is rotatable about a rotation axis 16. The rotation axis 16 extends coaxially to the housing longitudinal axis 7 or to the sleeve longitudinal axis 15. The temperature adjustment element 17 can be rotated about the rotation axis 16 by a user of the push-button valve 1. By rotating the temperature adjustment element 17 about the rotation axis 16, the inner sleeve 13 is adjustable relative to the outer sleeve 14 via the slide 48 and the driver 47 parallel to the sleeve longitudinal axis 15 between the hot water position 45 shown in Fig. 3 and a cold water position 46 shown in Fig. 4. The positions parallel to the housing longitudinal axis 7 orThe components adjustable relative to the sleeve longitudinal axis 15, namely temperature setting element 17, slide 48, driver 47 and inner sleeve 13, are marked with a dotted line in Fig. 3.

[0046] Fig. 4 shows the push-button valve 1 in longitudinal section after the inner sleeve 13 has been adjusted to the cold water position 46 relative to the outer sleeve 14 by rotating the temperature adjustment element 17 about the rotation axis 16 parallel to the sleeve longitudinal axis 15. In the cold water position 46, the inner sleeve 13 is adjusted relative to the outer sleeve 14, in particular maximally, in the direction of the first longitudinal valve end 25 of the push-button valve 1. In the cold water position 46, the second hot water opening 23 of the inner sleeve 13 is not aligned with the first hot water opening 22 of the outer sleeve 14, so that no hot water can flow into the mixing chamber 6 via the hot water inlet 4 of the valve housing 2 and the hot water openings 22, 23.In the cold water position 46, the second cold water opening 21 of the inner sleeve 13 is aligned with the first cold water opening 20 of the outer sleeve 14 (at least partially), so that cold water can flow into the mixing chamber 6 via the cold water inlet 3 of the valve housing 2 and the cold water openings 20, 21. In the cold water position 46, only cold water and no hot water can flow into the mixing chamber 6. A mixed water temperature of the mixed water in the mixing chamber 6 can therefore be minimal or correspond to a cold water temperature of the cold water. In the cold water position 46, the temperature adjustment element 17 is adjusted toward the first longitudinal valve end 25, so that a second spring 31 is tensioned.If the temperature adjustment element 17 is adjusted by rotating about the rotation axis 16 in the direction of the second longitudinal valve end 26, the second spring 31 adjusts the inner sleeve 13, the driver 47 and the slide 48 until the inner sleeve 13 again reaches the hot water position 45 shown in Fig. 3.

[0047] Fig. 5 shows the push-button valve 1 in longitudinal section, with the inner sleeve 13 in a first volume position 53. The inner sleeve 13 is connected to a volume adjustment element 18 via the driver 47 and a connecting element 55. By rotating the volume adjustment element 18 about the rotation axis 16, the inner sleeve 13 can be adjusted or rotated relative to the outer sleeve 14 about the rotation axis 16 via the connecting element 55 and the driver 47 between the first volume position 53 shown in Fig. 5 and a second volume position 54 shown in Fig. 8. Rotating the volume adjustment element 18 about the rotation axis 16 does not cause the volume adjustment element 18 and the connecting element 55 to be adjusted parallel to the housing longitudinal axis 7 or to the sleeve longitudinal axis 15.

[0048] Fig. 6 shows the volume control device 12 with the inner sleeve 13 and the outer sleeve 14 in a perspective view. The outer sleeve 14 is shown in Fig. 6 in a partial section so that the inner sleeve 13 is visible. Visible in Fig. 6 are the first cold water opening 20 of the outer sleeve 14, the first hot water opening 22 of the outer sleeve 17, the second cold water opening 21 of the inner sleeve 13, and the second hot water opening 23 of the inner sleeve 13. The inner sleeve 13 is connected to the volume adjustment element 18 shown in Fig. 5 via the driver 47 and the connecting element 55. A coupling 19 is formed between the driver 47 and the connecting element 55, which coupling enables adjustment of the inner sleeve 13 and the driver 47 relative to the connecting element 55 and the volume adjustment element 18 shown in Fig. 5 parallel to the housing longitudinal axis 7 or parallel to the sleeve longitudinal axis 15.The coupling 19 enables rotation of the inner sleeve 13 about the rotation axis 16, regardless of the position of the inner sleeve 13 parallel to the sleeve's longitudinal axis 15. The coupling 19 is formed from first teeth 56 of the driver 47 and second teeth 57 of the connecting element 55, which engage with one another, so that the driver 47 and the inner sleeve 13 are adjustable relative to the connecting element 55 and the volume adjustment element 18 shown in Fig. 5 parallel to the sleeve's longitudinal axis 15, and the driver 47 and the connecting element 55 are positively connected to one another in a circumferential direction 58 about the rotation axis 16. Fig. 7 shows the quantity regulating device 12 in a side view. In Fig. 7, the inner sleeve 13 is adjusted in a longitudinal direction 59 or parallel to the sleeve longitudinal axis 15 into the cold water position 46 shown in Fig. 4 and at the same time rotated in the circumferential direction 58 about the rotation axis 16 into the first volume position 53.In the cold water position 46, the second cold water opening 21 of the inner sleeve 13 is aligned (at least partially) with the first cold water opening 20 of the outer sleeve 14. In the cold water position 46, no hot water can flow into the mixing chamber 6 shown in Figs. 1 to 5 via the first hot water opening 22 of the outer sleeve 14 because the second hot water opening 23 of the inner sleeve 13 shown in Figs. 2 to 4 is not aligned with the first hot water opening 22 of the outer sleeve 14. In an intermediate position of the inner sleeve 13 between the cold water position 46 and the hot water position 45 shown in Fig. 3, both the first cold water opening 20 and the second cold water opening 21 (at least partially) and the first hot water opening 22 and the second hot water opening 23 (at least partially) can be aligned with each other, so that cold water and hot water can flow into the mixing chamber 6.

[0049] Fig. 8 shows the volume control device 12 in a side view after the inner sleeve 13 has been rotated from the first volume position 53 shown in Fig. 7 about the rotation axis 16 relative to the outer sleeve 14 into the second volume position 54. In the second volume position 54, the second cold water opening 21 of the inner sleeve 13 and the first cold water opening 20 of the outer sleeve 14 overlap more strongly in the circumferential direction 58 than in the first volume position 53 shown in Fig. 7. In the second volume position 54, a flow cross-section 60 formed between the first cold water opening 20 and the second cold water opening 21 is larger than in the first volume position 53 shown in Fig. 7. In the second volume position 54, a larger volume flow of cold water can flow into the mixing chamber 6 than in the first volume position 53 shown in Fig. 7.

[0050] The mixed water temperature and volume flow can be adjusted using push-button valve 1. List of reference symbols

[0051] 1 push-button valve

[0052] 2 valve housings

[0053] 3 Cold water inlet

[0054] 4 Hot water inlet

[0055] 5 Mixed water outlet

[0056] 6 Mixing chamber

[0057] 7 Housing longitudinal axis

[0058] 8 Valve body rod

[0059] 9 Rod longitudinal axis

[0060] 10 Closed position

[0061] 11 Disclosure

[0062] 12 Flow control device

[0063] 13 Inner sleeve

[0064] 14 Outer sleeve

[0065] 15 Sleeve longitudinal axis

[0066] 16 axis of rotation

[0067] 17 Temperature adjustment element

[0068] 18 Volume adjustment element

[0069] 19 Clutch

[0070] 20 first cold water opening

[0071] 21 second cold water opening

[0072] 22 first hot water opening

[0073] 23 second hot water opening

[0074] 24 Housing wall

[0075] 25 first longitudinal valve end

[0076] 26 second longitudinal valve end

[0077] 27 first longitudinal rod end 28 second longitudinal rod end

[0078] 29 Mixed water outlet seal

[0079] 30 first spring

[0080] 31 second spring 32 ballpoint pen mechanism

[0081] 33 Mixing chamber inner wall

[0082] 34 retaining ring

[0083] 35 bar groove

[0084] 36 Pressure element 37 Feed element

[0085] 38 toothed guide

[0086] 39 first position

[0087] 40 second position

[0088] 41 Outer sleeve outer diameter 42 Housing inner diameter

[0089] 43 outer diameter

[0090] 44 inner diameter

[0091] 45 Hot water position

[0092] 46 Cold water position 47 Driver

[0093] 48 sliders

[0094] 49 internal threads

[0095] 50 external threads

[0096] 51 first distance 52 second distance

[0097] 53 first volume position

[0098] 54 second volume position

[0099] 55 connecting element 56 first teeth

[0100] 57 second teeth

[0101] 58 Circumferential direction

[0102] 59 Longitudinal direction 60 Flow cross-section

Claims

Patent claims 1. Push-button valve (1) for a sanitary fitting, comprising at least: - a valve housing (2) with a cold water inlet (3) for cold water, a hot water inlet (4) for hot water, a mixing chamber (6) for mixing the cold water and the hot water to form mixed water and a mixed water outlet (5) for the mixed water, wherein the valve housing (2) extends along a housing longitudinal axis (7); - a valve body rod (8) which is adjustable parallel to a longitudinal axis (9) of the valve body rod (8) between a closed position (10), in which the push-button valve (1) is closed, and an open position (11), in which the push-button valve (1) is open; and - a quantity regulating device (12) with an inner sleeve (13) and an outer sleeve (14), wherein the inner sleeve (13) is adjustable relative to the outer sleeve (14) for setting a mixed water temperature of the mixed water, in particular parallel to a sleeve longitudinal axis (15) of the quantity regulating device (12), and wherein the inner sleeve (13) is adjustable relative to the outer sleeve (14) for setting a volume flow of the mixed water, in particular about a rotation axis (16).

2. Push-button valve (1) according to claim 1, comprising a temperature adjustment element (17) for adjusting the inner sleeve (13), in particular parallel to the sleeve longitudinal axis (15).

3. Push-button valve (1) according to claim 2, wherein the temperature setting element (17) is rotatable about the rotation axis (16).

4. Push-button valve (1) according to claim 2 or 3, wherein the temperature adjustment element (17) is designed as a screw nut.

5. Push-button valve (1) according to one of the preceding claims, comprising a volume adjustment element (18) for adjusting the inner sleeve (13), in particular about the axis of rotation (16).

6. Push-button valve (1) according to claim 5, wherein the volume adjustment element (18) is rotatable about the rotation axis (16).

7. Push-button valve (1) according to claim 5 or 6, wherein the volume adjustment element (18) is connected to the inner sleeve (13) via a coupling (19) so that the inner sleeve (13) is adjustable relative to the volume adjustment element (18) parallel to the sleeve longitudinal axis (15).

8. Push-button valve (1) according to one of the preceding claims, wherein the inner sleeve (13) or the outer sleeve (14) consists at least partially of ceramic.

9. Push-button valve (1) according to one of the preceding claims, wherein the outer sleeve (14) has a first cold water opening (20) and a first hot water opening (22) and the inner sleeve (13) has a second cold water opening (21) and a second hot water opening (23).

10. Push-button valve (1) according to claim 9, wherein the first cold water opening (20), the first hot water opening (22), the second cold water opening (21) or the second hot water opening (23) are slit-shaped.

Images