EP3305412B1 - Spray jet generating device - Google Patents
Spray jet generating device Download PDFInfo
- Publication number
- EP3305412B1 EP3305412B1 EP17194704.7A EP17194704A EP3305412B1 EP 3305412 B1 EP3305412 B1 EP 3305412B1 EP 17194704 A EP17194704 A EP 17194704A EP 3305412 B1 EP3305412 B1 EP 3305412B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluid outlet
- fluid
- jet
- generating device
- shower
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000007921 spray Substances 0.000 title description 3
- 239000012530 fluid Substances 0.000 claims description 188
- 239000012528 membrane Substances 0.000 claims description 14
- 230000000903 blocking effect Effects 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims 2
- 229920001971 elastomer Polymers 0.000 description 30
- 239000000806 elastomer Substances 0.000 description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 21
- 239000002184 metal Substances 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 210000002445 nipple Anatomy 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/32—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening
- B05B1/323—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening the valve member being actuated by the pressure of the fluid to be sprayed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
- B05B15/52—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles
- B05B15/528—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles by resilient deformation of the nozzle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
- B05B1/18—Roses; Shower heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
- B05B1/18—Roses; Shower heads
- B05B1/185—Roses; Shower heads characterised by their outlet element; Mounting arrangements therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/3006—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being actuated by the pressure of the fluid to be sprayed
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/02—Plumbing installations for fresh water
- E03C1/08—Jet regulators or jet guides, e.g. anti-splash devices
Definitions
- the invention relates to a shower jet generating device with a shower jet disk, which has at least one jet disk opening and delimits a fluid chamber on the outlet side, and a fluid outlet element arranged on the at least one jet disk opening and movable in an axial main directional component, which has a movable valve body with a fluid outlet opening opening out of the fluid chamber, which is released depending on a fluid pressure in the fluid chamber in a release position of the fluid outlet element and locked in a shut-off position of the fluid outlet element.
- the main axial direction component of the movement of the fluid outlet element is to be understood here as meaning that the component of this movement is greater in an axial direction than perpendicular thereto.
- the axial direction of the movable fluid outlet element can in particular be parallel to a longitudinal axis of the fluid outlet opening and / or to a jet direction of a fluid emerging from its fluid outlet opening and / or an axial direction of the shower jet disc.
- the shower jet generating device can be used in particular for a sanitary shower head, to which a fluid, e.g. water, can be supplied via a feed line, which then enters the fluid chamber and from there into the one or more fluid outlet openings and exits from this or these with the formation of a shower jet .
- a fluid e.g. water
- Such devices for generating a shower jet are used in particular in sanitary shower heads, such as hand showers, overhead showers and side showers of shower facilities.
- EP 1 700 636 A2 discloses a shower head with a shower jet generating device of the type mentioned, in which each jet disk opening is assigned a valve element in the form of a curved, at least one incision having membrane section, which is axially movable and bendable by an applied water pressure, whereby a closed water outlet opening is provided in the pressureless state .
- the patent specification US 6,382,531 B1 discloses a shower jet generating device for a sanitary shower head, which has a jet disk with jet disk openings, a support plate arranged upstream thereof with a central fluid supply opening and a flexible membrane plate between the support plate and the jet disk, with fluid outlet nipples with associated fluid outlet opening being formed on the membrane plate, which extend through the jet disk openings extend through the jet disc.
- the membrane plate rests upstream, ie rearward, against the support plate or is located in close proximity to it and also blocks the central fluid supply opening in the support plate completely or at least largely.
- the fluid pressure can push the membrane plate slightly away from the support plate in the direction of the jet disk, whereby the supply opening is opened further and supplied water can get between the support plate and the membrane plate and exit the fluid outlet openings of the outlet nipples.
- WO 2014/029636 A2 discloses a shower head which has a lower shell functioning as a jet disk with passage openings, an upper shell and a jet mat arranged between the upper shell and lower shell with outflow spouts which extend through the passage openings of the lower shell and have shower jet outlets.
- a deformable water-conducting mat made of dense elastomer is arranged, which is resiliently supported against the head plate and, when depressurized, rests against the jet mat and closes its outflow spouts. If water is supplied via a central inlet between the jet mat and the water guide mat, the water guide mat bulges with the formation of a water flow surface against the head plate and releases the outflow spouts of the jet mat.
- the utility model CN 203108678 U discloses a sanitary overhead shower with a jet disk which is axially movably arranged in a shower housing body and has jet outlet openings into which cleaning pins protrude, which are formed on a perforated intermediate plate of the housing body.
- a central pressure valve body protrudes in one piece from the jet disk.
- the invention is based on the technical problem of providing a shower jet generating device of the type mentioned above, which is improved compared to the prior art explained above and in particular reliably prevents undesired dripping, is relatively easy to manufacture and functionally reliable and has an outlet cross-section largely unaffected by the fluid pressure in the fluid chamber for the fluid outlet opening.
- the movable valve body interacts with an immovable valve seat which releases the fluid outlet opening in the release position of the fluid outlet element and blocks it in a shut-off position of the fluid outlet element.
- the shower jet generating device according to the invention can reliably prevent unwanted dripping and it is relatively easy to manufacture and functionally reliable. Furthermore, the outlet cross section of the fluid outlet opening is largely unaffected by the fluid pressure in the fluid chamber.
- the jet disk can be made in one piece or composed of several components which can consist of different materials, in particular an elastic material and / or a plastic and / or a metal.
- the jet disk can have a rubber plate or rubber mat and a metal and / or hard plastic disk which have corresponding jet disk openings, the rubber plate or rubber mat from the inside of the Fluid chamber is applied to the metal or hard plastic disc, so that the corresponding jet disc openings of the rubber plate or rubber mat and the metal and / or hard plastic disc are aligned with one another.
- the possible material combinations of rubber plate or rubber mat and the metal and / or hard plastic disk are advantageous with regard to increased design freedom, in particular in the design of the shower jet generating device.
- the jet disk opening can be designed as a countersunk hole, for example.
- the geometry of the countersink of the countersunk bore can contribute to receiving and / or supporting and / or encompassing the fluid outlet element arranged in the jet disk opening.
- the shut-off of the fluid outlet opening which is preferably designed as an opening closed on the periphery, can be achieved by the immovable valve seat in particular in that the movable valve body rests against it in the shut-off position with its fluid outlet opening.
- the fluid outlet opening can be spaced from the immovable valve seat and thus released.
- the fluid outlet element or its valve body is designed to assume the releasing position as soon as the fluid pressure in the fluid chamber is greater than a previously established limit pressure.
- the previously established limit pressure can be, for example, between 0.2 bar and 0.35 bar, in particular between 0.24 bar and 0.26 bar. As long as the limit pressure is not reached, the fluid outlet opening remains closed.
- the fluid outlet element or the movable valve body is elastic, e.g. is biased by appropriate shaping in the direction of the shut-off position and is pressed out of this by the fluid pressure in the fluid chamber into the release position. If the fluid pressure in the fluid chamber drops, e.g. below the limit pressure mentioned, the fluid outlet element or the movable valve body automatically returns to the shut-off position.
- the fluid chamber is delimited on a side opposite the jet disc by an intermediate plate or housing plate having the immovable valve seat.
- the immovable valve seat can be used as a separate component on the intermediate plate or attached to the housing plate.
- the intermediate plate or the housing plate can fulfill additional functions if required, for example it can serve as a mounting plate for a one-part or multi-part jet disk.
- the movable valve body rests in the release position against a valve contact surface of the jet disk.
- the valve contact surface of the jet disc enables the movement of the movable valve body to be limited. So it is e.g. possible that the release position of the fluid outlet element is predetermined by the valve contact surface.
- the fluid outlet element extends with its fluid outlet opening in the releasing and / or blocking position through the jet disk opening.
- the fluid outlet opening and / or the movable valve body are preferably made of an elastomer, in particular of a silicone with a Shore hardness between fifty and seventy. If limescale deposits constrict or even clog the fluid outlet opening, they can be removed in a manner known per se by the user exerting a deforming force on the fluid outlet opening by rubbing or the like, causing the limescale deposits to flake off.
- the valve seat has a valve seat projection, which protrudes into the fluid outlet opening when the fluid outlet opening is closed.
- the valve seat projection protruding into the fluid outlet opening can, for example, counteract the formation of limescale deposits by removing any limescale deposits from the protruding valve seat protrusion when the fluid outlet element is moved between the locked position and the released position.
- the protruding valve seat projection can be advantageous for the interaction of the movable valve body with the immovable valve seat, in particular for the tight blocking of the fluid outlet opening. This is preferably supported by a corresponding negative shape of the valve seat projection or the immovable valve seat in relation to the shape of the fluid outlet opening or the movable valve body.
- the fluid outlet opening has a shape-stable and / or circular-cylindrical and / or conical geometry that is independent of fluid pressure.
- a dimensionally stable i.e. a geometry of the fluid outlet opening that is largely independent of the fluid pressures occurring during operation ensures, for example, that when the shower jet generating device is used as intended, the characteristics of a shower jet generated are very largely independent of the fluid pressure in the fluid chamber. This is because the fluid outlet opening then always has an essentially constant passage cross-sectional area and cross-sectional shape.
- the fluid outlet opening is formed by an outlet nozzle with a nozzle longitudinal axis which is parallel to a local surface normal of an outside of the jet disk.
- the nozzle longitudinal axis can e.g. be the axis of rotation of the fluid outlet opening.
- the fluid outlet element has an elastomer ring membrane which surrounds and supports the movable valve body.
- the elastomer ring membrane is e.g. on the jet disk so that the fluid outlet element is arranged in the associated jet disk opening.
- the elastomer ring membrane can simplify or facilitate the placement of the fluid outlet element in the jet disk opening.
- the fluid outlet element is made in one piece. This enables simplification and cost reduction, e.g. in the manufacture of the fluid outlet element and / or the assembly of the shower jet generating device.
- the jet disk has a plurality of jet disk openings and associated fluid outlet elements. Furthermore, the jet disk has a one-piece elastomer plate on which the plurality of fluid outlet elements is formed. For example, any number between ten and two hundred jet disk openings can be provided. If the fluid outlet elements have elastomer ring membranes, it is advantageous to mold the fluid outlet elements with the elastomer ring membrane onto the elastomer plate.
- the one-piece design of the elastomer plate and fluid outlet elements can be used both in the production as well as for the assembly, since a reduction of components and a simplified handling are achieved.
- the jet disk can have a single or a plurality of one-piece elastomer plates, on each of which a plurality of fluid outlet elements is formed.
- These one-piece elastomer plates can differ, for example, in the geometric shape of their arranged fluid outlet openings, as a result of which the shower jet generating device has areas which can generate different shower jets.
- the shower jet generating device shown is integrated into a sanitary shower head in order to generate a water shower jet whose jet shape is largely independent of the pressure of the water supplied. That the shower head
- the water supplied is introduced into a fluid chamber 3, which is delimited on the outlet side by a spray disc 1 of the shower jet generating device, which is here, by way of example, multi-part.
- the jet disk 1 has a plurality of preferably between ten and two hundred, for example thirty, jet disk openings 2 through which the water from the fluid chamber 3 can be directed to the outside.
- the multi-part jet disk 1 comprises an elastomer plate 13, e.g. of a silicone material with a Shore hardness of preferably between fifty and seventy, e.g. sixty, and a metal plate 14, the elastomer plate 13 resting against the metal plate 14 on the fluid chamber side. Furthermore, a housing plate 8 of the shower head is arranged opposite the jet disk 1 and delimiting the fluid chamber 3. The elastomer plate 13 is held in a sealing manner with its outer edge area between the housing plate 8 and the metal plate 14, the fluid chamber 3.
- a plurality of elastomer annular diaphragms 12 are formed on the one-piece elastomer plate 13, each of which surrounds and supports a movable fluid outlet element 4.
- the fluid outlet element 4 is thus connected to the elastomer plate 13 via the elastomer ring membrane 12 or is held on it.
- the in Figs. 1 to 4 The elastomer plate 13 shown is made in one piece with the fluid outlet element 4 and the elastomer annular membrane 12. Furthermore, the elastomer plate 13 is placed against the metal plate 14 in such a way that a movable fluid outlet element 4 is arranged on each jet disk opening 2.
- the respective fluid outlet element 4 has a fluid outlet opening 5 which discharges from the fluid chamber 3 and is designed in the manner of an outlet nozzle.
- the fluid outlet opening 5 or the outlet nozzle has a truncated conical geometry on the inlet side, coming from the fluid chamber 3, which is followed on the outlet side by a circular cylindrical geometry as an end section, in which the fluid outlet opening 5 is tapered to an outlet diameter which, for example, is typically in the range of 0, 6 mm to 1.2 mm, in particular from 0.85 mm to 0.95 mm.
- the fluid outlet opening 5 or outlet nozzle has a geometry that is independent of fluid pressure and is dimensionally stable.
- the axis of symmetry of the fluid outlet opening 5 is a nozzle longitudinal axis 11, which is at the same time an axial main directional component of the movement of the movable fluid outlet element 4.
- the nozzle longitudinal axis 11 also corresponds to a local surface normal of an outside of the jet disk 1 at the relevant point.
- the fluid outlet element 4 has a movable valve body 6, on which the fluid outlet opening 5 is arranged, the movable valve body 6 being a rotationally symmetrical element in the manner of a disc spring.
- the movable valve body 6 is responsible for the movement of the fluid outlet element 4 and thus also for the movement of the fluid outlet opening 5.
- the fluid outlet element 4 is switched between a position that releases or shuts off the fluid outlet opening 5, the movable valve body 6 interacting with an immovable valve seat 7.
- the cause of this movement is a fluid pressure prevailing in the fluid chamber 3, which is generated by the supplied water.
- the fluid pressure acts on the movable valve body 6, and as soon as a predetermined limit pressure between 0.2 bar to 0.35 bar, in particular between 0.24 bar to 0.26 bar, is exceeded in the fluid chamber, the valve body 6 and thus the Fluid outlet element 4 with an axial main directional component is moved by the pressure from a shut-off position into a release position, in which the valve body 6 releases the fluid outlet opening 5. If the fluid pressure falls below the predetermined limit pressure, the valve body 6 automatically moves back into its original position, which shuts off the fluid outlet opening 5.
- Fig. 1 the shut-off position of the movable valve body 6 is shown.
- the valve body 6 interacts with the immovable valve seat 7 to the effect that the valve body 6 rests or presses against the valve seat 7, whereby the valve seat 7 blocks the fluid outlet opening 5 in a fluid-tight manner. Due to the tight fit of the movable valve body 6 against the immovable valve seat 7, no water can leave the fluid chamber 3 through the fluid outlet opening 5, and the shower head is thus secured against dripping.
- the immovable valve seat 7 shown is made in one piece with the housing plate 8 of the shower head and has a flat seat surface against which the movable valve body 6 rests.
- the immovable valve seat 7 is formed by a plateau-like projection 15 of the housing plate 8.
- the fluid outlet opening 5 extends through the jet disk opening 2 in the shut-off position of the movable valve body 6 and has a protrusion on the outlet side in relation to the metal plate 14.
- This protrusion of the fluid outlet opening 5 can, for example, be in the range from 1 mm to 3 mm, for example approximately 2 mm.
- the protrusion is preferably between 3 mm and 7 mm, for example about 5 mm.
- the fluid outlet opening 5 thus executes a stroke movement with an axial stroke length of preferably 2 mm to 5 mm, for example approximately 3 mm.
- the respective fluid outlet element 4 or its valve body 6 has a monostable shape, ie a shape such that the fluid outlet element 4 or its valve body 6 has exactly a stable position, which in the present case corresponds to the shut-off position Fig. 1 given is.
- the fluid outlet element 4 or its valve body 6 when the fluid pressure is present in the fluid chamber, is moved by the stroke length into the release position according to FIG Fig. 2 moved forward if and as soon as the fluid pressure exceeds an associated limit pressure value of eg 0.25 bar to 0.35 bar.
- the valve body 6 no longer rests against the immovable valve seat 7, and the water can leave the fluid chamber 3 through the respective fluid outlet opening 5 in order to form the desired shower jet.
- the fluid outlet element 4 or its valve body 6 automatically returns to the shut-off position by elastic restoring force, so that water dripping from the fluid outlet opening 5 is reliably prevented becomes.
- the jet disk opening 2 at which the fluid outlet element 4 shown is arranged is a countersunk hole in the metal plate 14 executed, wherein the depression has a geometry, in particular a valve contact surface 9, which supports the movable valve body 6 in the releasing position and limits its movement.
- the countersunk hole is preferably shaped in such a way that it does not have any acute angles.
- FIG. 5 to 8 is a variant of the shower jet generating device of Figs. 1 to 4 shown, the same reference numerals being used for identical and functionally equivalent elements and, in this respect, also to the above statements on the exemplary embodiment of FIG Figs. 1 to 4 can be referenced, so that essentially only the existing differences will be discussed below, which are here specifically in the design of the immovable valve seat 7.
- the immovable valve seat 7 has a valve seat projection 10 which protrudes into the fluid outlet opening 5 when the fluid outlet opening 5 is closed and does not protrude into the fluid outlet opening 5 when the fluid outlet opening 5 is released. Limescale deposits on the fluid outlet opening 5 can thereby be counteracted by being detached from the fluid outlet opening 5 by the valve seat projection 10 when the fluid outlet element 4 moves between the releasing position and the blocking position.
- the immovable valve seat 7 in the variant of Figures 5 to 8 a shape which is matched to that of the movable valve body 6.
- the immovable valve seat 7 has an annular recess or recess in the form of a negative shape of the movable valve body 6 resting against it in the shut-off position. This increases the contact area between the movable valve body 6 and the immovable valve seat 7 in the shut-off position compared to the flat seat surface in the Variant of the Figs. 1 to 4 and contributes to a centering of the position of the valve body 6 that is pressing against the valve seat 7 in the shut-off position.
- This enlarged contact surface and the centered position of the valve body 6 advantageously support the reliable sealing of the fluid outlet opening 5.
- the immovable valve seat 7 is preferably in the form of a truncated cone Executed plug, which closes the fluid outlet opening 5 in the shut-off position.
- the plug-shaped immovable valve seat 7 protrudes into the fluid outlet opening 5.
- an intermediate plate has the immovable valve seat instead of the housing plate 8 shown.
- This intermediate plate is preferably integrated into a shower head and acts as a delimitation of the fluid chamber on the side opposite the jet disk.
- the invention provides a shower jet generating device which reliably prevents unwanted dripping, is relatively easy to manufacture and is functionally reliable. Furthermore, the exit cross section of the fluid exit opening is largely unaffected by the fluid pressure in the fluid chamber.
- the invention can be used in particular in sanitary engineering, but also in other applications in which there is a need to be able to generate a shower jet functionally reliably and without dripping.
Description
Die Erfindung betrifft eine Brausestrahlerzeugungsvorrichtung mit einer Brausestrahlscheibe, die mindestens eine Strahlscheibenöffnung aufweist und eine Fluidkammer austrittsseitig begrenzt, und einem an der mindestens einen Strahlscheibenöffnung angeordneten und in einer axialen Hauptrichtungskomponente beweglichen Fluidaustrittselement, das einen beweglichen Ventilkörper mit einer aus der Fluidkammer ausmündenden Fluidaustrittsöffnung aufweist, die abhängig von einem Fluiddruck in der Fluidkammer in einer Freigabeposition des Fluidaustrittselements freigegeben und in einer Absperrposition des Fluidaustrittselements abgesperrt ist.The invention relates to a shower jet generating device with a shower jet disk, which has at least one jet disk opening and delimits a fluid chamber on the outlet side, and a fluid outlet element arranged on the at least one jet disk opening and movable in an axial main directional component, which has a movable valve body with a fluid outlet opening opening out of the fluid chamber, which is released depending on a fluid pressure in the fluid chamber in a release position of the fluid outlet element and locked in a shut-off position of the fluid outlet element.
Unter axialer Hauptrichtungskomponente der Bewegung des Fluidaustrittselements ist hierbei zu verstehen, dass die Komponente dieser Bewegung in einer axialen Richtung größer ist als senkrecht dazu. Die Axialrichtung des beweglichen Fluidaustrittselements kann insbesondere parallel zu einer Längsachse der Fluidaustrittsöffnung und/oder zu einer Strahlrichtung eines aus seiner Fluidaustrittsöffnung austretenden Fluid und/oder einer Axialrichtung der Brausestrahlscheibe sein. Der bei bestimmungsgemäßem Gebrauch der Brausestrahlerzeugungsvorrichtung in der Fluidkammer herrschende Fluiddruck sorgt dafür, dass der bewegliche Ventilkörper seine Freigabeposition einnimmt und die Fluidaustrittsöffnung freigegeben ist, während der Ventilkörper im drucklosen Zustand der Fluidkammer seine Absperrposition einnimmt und die Fluidaustrittsöffnung abgesperrt ist. Mit einer solchen Anordnung kann einem unerwünschten Nachtropfen einer entsprechend ausgerüsteten Brause nach Absperren der Wasserzufuhr begegnet werden.The main axial direction component of the movement of the fluid outlet element is to be understood here as meaning that the component of this movement is greater in an axial direction than perpendicular thereto. The axial direction of the movable fluid outlet element can in particular be parallel to a longitudinal axis of the fluid outlet opening and / or to a jet direction of a fluid emerging from its fluid outlet opening and / or an axial direction of the shower jet disc. The fluid pressure prevailing in the fluid chamber when the shower jet generating device is used as intended ensures that the movable valve body assumes its release position and the fluid outlet opening is released, while the valve body assumes its shut-off position when the fluid chamber is depressurized and the fluid outlet opening is shut off. With such an arrangement, unwanted dripping from a suitably equipped shower head can be countered after the water supply has been shut off.
Die Brausestrahlerzeugungsvorrichtung ist insbesondere für einen sanitären Brausekopf verwendbar, dem über eine Zuleitung ein Fluid, z.B. Wasser, zugeführt werden kann, das dann in die Fluidkammer und von dort in die eine oder mehreren Fluidaustrittsöffnungen gelangt und unter Bildung eines Brausestrahls aus dieser bzw. diesen austritt. Derartige Vorrichtungen zur Erzeugung eines Brausestrahls werden insbesondere in sanitären Brauseköpfen eingesetzt, wie z.B. Handbrausen, Kopfbrausen und Seitenbrausen von Duscheinrichtungen.The shower jet generating device can be used in particular for a sanitary shower head, to which a fluid, e.g. water, can be supplied via a feed line, which then enters the fluid chamber and from there into the one or more fluid outlet openings and exits from this or these with the formation of a shower jet . Such devices for generating a shower jet are used in particular in sanitary shower heads, such as hand showers, overhead showers and side showers of shower facilities.
Die Offenlegungsschrift
Die Patentschrift
Die Offenlegungsschrift
Die Gebrauchsmusterschrift
Der Erfindung liegt das technische Problem zugrunde, eine Brausestrahlerzeugungsvorrichtung der eingangs genannten Art bereitzustellen, die gegenüber dem oben erläuterten Stand der Technik verbessert ist und insbesondere unerwünschtes Nachtropfen zuverlässig verhindert, relativ einfach herstellbar und funktionssicher ist und dabei einen vom Fluiddruck in der Fluidkammer weitestgehend unbeeinflussten Austrittsquerschnitt für die Fluidaustrittsöffnung aufweist.The invention is based on the technical problem of providing a shower jet generating device of the type mentioned above, which is improved compared to the prior art explained above and in particular reliably prevents undesired dripping, is relatively easy to manufacture and functionally reliable and has an outlet cross-section largely unaffected by the fluid pressure in the fluid chamber for the fluid outlet opening.
Die Erfindung löst dieses Problem durch die Bereitstellung einer Brausestrahlerzeugungsvorrichtung mit den Merkmalen des Anspruchs 1. Vorteilhafte sowie bevorzugte Ausgestaltungen der Erfindung sind Gegenstand der weiteren Ansprüche, deren Wortlaut hiermit durch Verweis vollumfänglich in die Beschreibung aufgenommen wird.The invention solves this problem by providing a shower jet generating device with the features of
Bei der erfindungsgemäßen Brausestrahlerzeugungsvorrichtung, die insbesondere für einen sanitären Brausekopf einsetzbar ist, wirkt der bewegliche Ventilkörper mit einem unbeweglichen Ventilsitz zusammen, der die Fluidaustrittsöffnung in der Freigabeposition des Fluidaustrittselements freigibt und in einer Absperrposition des Fluidaustrittselements absperrt. Die erfindungsgemäße Brausestrahlerzeugungsvorrichtung kann unerwünschtes Nachtropfen zuverlässig verhindern und sie ist relativ einfach herstellbar und funktionssicher. Des Weiteren ist der Austrittsquerschnitt der Fluidaustrittsöffnung vom Fluiddruck in der Fluidkammer weitestgehend unbeeinflusst.In the shower jet generating device according to the invention, which can be used in particular for a sanitary shower head, the movable valve body interacts with an immovable valve seat which releases the fluid outlet opening in the release position of the fluid outlet element and blocks it in a shut-off position of the fluid outlet element. The shower jet generating device according to the invention can reliably prevent unwanted dripping and it is relatively easy to manufacture and functionally reliable. Furthermore, the outlet cross section of the fluid outlet opening is largely unaffected by the fluid pressure in the fluid chamber.
Die Strahlscheibe kann einteilig ausgeführt oder aus mehreren Bauteilen zusammengesetzt sein, die aus unterschiedlichen Materialien, insbesondere einem elastischem Material und/oder einem Kunststoff und/oder einem Metall, bestehen können. So kann zum Beispiel die Strahlscheibe eine Gummiplatte bzw. Gummimatte und eine Metall- und/oder Hartkunststoffscheibe aufweisen, die über korrespondierende Strahlscheibenöffnungen verfügen, wobei die Gummiplatte bzw. Gummimatte von der Innenseite der Fluidkammer an die Metall- oder Hartkunststoffscheibe angelegt ist, so dass die korrespondierenden Strahlscheibenöffnungen der Gummiplatte bzw. Gummimatte und der Metall- und/oder Hartkunststoffscheibe zueinander ausgerichtet sind. Die möglichen Materialkombinationen von Gummiplatte bzw. Gummimatte und der Metall- und/oder Hartkunststoffscheibe sind bezüglich einer erhöhten Gestaltungsfreiheit, insbesondere im Design der Brausestrahlerzeugungsvorrichtung vorteilhaft. Die Strahlscheibenöffnung kann z.B. als Senkbohrung ausgeführt sein. Die Geometrie der Senkung der Senkbohrung kann dazu beitragen, das in der Strahlscheibenöffnung angeordnete Fluidaustrittselement aufzunehmen und/oder abzustützen und/oder zu umfassen.The jet disk can be made in one piece or composed of several components which can consist of different materials, in particular an elastic material and / or a plastic and / or a metal. For example, the jet disk can have a rubber plate or rubber mat and a metal and / or hard plastic disk which have corresponding jet disk openings, the rubber plate or rubber mat from the inside of the Fluid chamber is applied to the metal or hard plastic disc, so that the corresponding jet disc openings of the rubber plate or rubber mat and the metal and / or hard plastic disc are aligned with one another. The possible material combinations of rubber plate or rubber mat and the metal and / or hard plastic disk are advantageous with regard to increased design freedom, in particular in the design of the shower jet generating device. The jet disk opening can be designed as a countersunk hole, for example. The geometry of the countersink of the countersunk bore can contribute to receiving and / or supporting and / or encompassing the fluid outlet element arranged in the jet disk opening.
Das Absperren der Fluidaustrittsöffnung, die vorzugsweise als eine umfangseitig geschlossene Öffnung ausgebildet ist, kann von dem unbeweglichen Ventilsitz insbesondere dadurch bewerkstelligt werden, dass der bewegliche Ventilkörper in der Absperrposition mit seiner Fluidaustrittsöffnung gegen ihn anliegt. In der Freigabeposition des Ventilkörpers kann die Fluidaustrittsöffnung hingegen vom unbeweglichen Ventilsitz beabstandet und dadurch freigegeben sein. In entsprechenden Realisierungen der Erfindung ist das Fluidaustrittselement bzw. sein Ventilkörper dazu ausgebildet, die freigebende Stellung einzunehmen, sobald der Fluiddruck in der Fluidkammer größer als ein zuvor festgelegter Grenzdruck ist. Der zuvor festgelegte Grenzdruck kann beispielsweise zwischen 0,2 bar bis 0,35 bar liegen, insbesondere zwischen 0,24 bar bis 0,26 bar. Solange der Grenzdruck nicht erreicht ist, bleibt die Fluidaustrittsöffnung abgesperrt.The shut-off of the fluid outlet opening, which is preferably designed as an opening closed on the periphery, can be achieved by the immovable valve seat in particular in that the movable valve body rests against it in the shut-off position with its fluid outlet opening. In the release position of the valve body, on the other hand, the fluid outlet opening can be spaced from the immovable valve seat and thus released. In corresponding implementations of the invention, the fluid outlet element or its valve body is designed to assume the releasing position as soon as the fluid pressure in the fluid chamber is greater than a previously established limit pressure. The previously established limit pressure can be, for example, between 0.2 bar and 0.35 bar, in particular between 0.24 bar and 0.26 bar. As long as the limit pressure is not reached, the fluid outlet opening remains closed.
Vorteilhaft kann vorgesehen sein, dass das Fluidaustrittselement bzw. der bewegliche Ventilkörper elastisch z.B. durch entsprechende Formgebung in Richtung der Absperrposition vorgespannt ist und aus dieser durch den Fluiddruck in der Fluidkammer in die Freigabeposition gedrückt wird. Fällt der Fluiddruck in der Fluidkammer ab, z.B. unter den erwähnten Grenzdruck, kehrt das Fluidaustrittselement bzw. der bewegliche Ventilkörper selbsttätig in die Absperrposition zurück.It can advantageously be provided that the fluid outlet element or the movable valve body is elastic, e.g. is biased by appropriate shaping in the direction of the shut-off position and is pressed out of this by the fluid pressure in the fluid chamber into the release position. If the fluid pressure in the fluid chamber drops, e.g. below the limit pressure mentioned, the fluid outlet element or the movable valve body automatically returns to the shut-off position.
In einer Ausgestaltung der Erfindung ist die Fluidkammer auf einer der Strahlscheibe gegenüberliegenden Seite durch eine den unbeweglichen Ventilsitz aufweisende Zwischenplatte oder Gehäuseplatte begrenzt. Dadurch kann eine Bauteilreduktion erreicht werden. Alternativ kann der unbewegliche Ventilsitz als eigenes Bauteil an der Zwischenplatte oder der Gehäuseplatte befestigt sein. Die Zwischenplatte oder die Gehäuseplatte kann bei Bedarf zusätzliche Funktionen erfüllt, so kann sie z.B. als Montageplatte für eine ein- oder mehrteilige Strahlscheibe dienen.In one embodiment of the invention, the fluid chamber is delimited on a side opposite the jet disc by an intermediate plate or housing plate having the immovable valve seat. This enables a reduction in components to be achieved. Alternatively, the immovable valve seat can be used as a separate component on the intermediate plate or attached to the housing plate. The intermediate plate or the housing plate can fulfill additional functions if required, for example it can serve as a mounting plate for a one-part or multi-part jet disk.
In einer Ausgestaltung der Erfindung liegt der bewegliche Ventilkörper in der Freigabeposition gegen eine Ventilanlagefläche der Strahlscheibe an. Die Ventilanlagefläche der Strahlscheibe ermöglicht eine Begrenzung der Bewegung des beweglichen Ventilkörpers. So ist es z.B. möglich, dass die Freigabeposition des Fluidaustrittselements durch die Ventilanlagefläche vorgegeben wird.In one embodiment of the invention, the movable valve body rests in the release position against a valve contact surface of the jet disk. The valve contact surface of the jet disc enables the movement of the movable valve body to be limited. So it is e.g. possible that the release position of the fluid outlet element is predetermined by the valve contact surface.
In einer Ausgestaltung der Erfindung erstreckt sich das Fluidaustrittselement mit seiner Fluidaustrittsöffnung in der freigebenden und/oder absperrenden Stellung durch die Strahlscheibenöffnung hindurch. Dadurch kann z.B. die Entfernung von Kalkablagerungen erleichtert werden. Vorzugsweise sind die Fluidaustrittsöffnung und/oder der bewegliche Ventilkörper aus einem Elastomer, insbesondere aus einem Silikon mit einer Shore-Härte zwischen fünfzig und siebzig. Falls Kalkablagerungen die Fluidaustrittsöffnung verengen oder gar verstopfen, können diese in an sich bekannter Weise dadurch entfernt werden, dass der Benutzer durch Rubbeln oder dgl. eine die Fluidaustrittsöffnung deformierende Kraft auf selbige ausübt, wodurch die Kalkablagerungen zum Abplatzen gebracht werden.In one embodiment of the invention, the fluid outlet element extends with its fluid outlet opening in the releasing and / or blocking position through the jet disk opening. As a result, e.g. the removal of limescale can be facilitated. The fluid outlet opening and / or the movable valve body are preferably made of an elastomer, in particular of a silicone with a Shore hardness between fifty and seventy. If limescale deposits constrict or even clog the fluid outlet opening, they can be removed in a manner known per se by the user exerting a deforming force on the fluid outlet opening by rubbing or the like, causing the limescale deposits to flake off.
In einer Ausgestaltung der Erfindung weist der Ventilsitz einen Ventilsitzvorsprung auf, der bei abgesperrter Fluidaustrittsöffnung in die Fluidaustrittsöffnung hineinragt. Durch den in die Fluidaustrittsöffnung hineinragenden Ventilsitzvorsprung kann beispielsweise der Entstehung von Kalkablagerungen entgegengewirkt werden, indem eventuelle Kalkablagerungen durch den hineinragenden Ventilsitzvorsprung beim Bewegen des Fluidaustrittselements zwischen der abgesperrten Stellung und der freigegebenen Stellung abgelöst werden. Des Weiteren kann der hineinragende Ventilsitzvorsprung für das Zusammenwirken des beweglichen Ventilkörpers mit dem unbeweglichen Ventilsitz vorteilhaft sein, insbesondere für die dichte Absperrung der Fluidaustrittsöffnung. Dies wird vorzugsweise durch eine korrespondierende negative Form des Ventilsitzvorsprungs bzw. des unbeweglichen Ventilsitzes in Bezug auf die Form der Fluidaustrittsöffnung bzw. des beweglichen Ventilkörpers unterstützt.In one embodiment of the invention, the valve seat has a valve seat projection, which protrudes into the fluid outlet opening when the fluid outlet opening is closed. The valve seat projection protruding into the fluid outlet opening can, for example, counteract the formation of limescale deposits by removing any limescale deposits from the protruding valve seat protrusion when the fluid outlet element is moved between the locked position and the released position. Furthermore, the protruding valve seat projection can be advantageous for the interaction of the movable valve body with the immovable valve seat, in particular for the tight blocking of the fluid outlet opening. This is preferably supported by a corresponding negative shape of the valve seat projection or the immovable valve seat in relation to the shape of the fluid outlet opening or the movable valve body.
In einer Ausgestaltung der Erfindung weist die Fluidaustrittsöffnung eine fluiddruckunabhängig formstabile und/oder kreiszylindrische und/oder konische Geometrie auf. Eine formstabile, d.h. eine von den im Betrieb auftretenden Fluiddrücken weitgehend unabhängige Geometrie der Fluidaustrittsöffnung sorgt beispielsweise dafür, dass beim bestimmungsgemäßen Gebrauch der Brausestrahlerzeugungsvorrichtung die Charakteristik eines erzeugten Brausestrahls in sehr hohem Maß unabhängig vom Fluiddruck in der Fluidkammer ist. Denn die Fluidaustrittsöffnung hat dann stets eine im Wesentlichen konstant bleibende Durchtrittsquerschnittsfläche und Querschnittsform.In one embodiment of the invention, the fluid outlet opening has a shape-stable and / or circular-cylindrical and / or conical geometry that is independent of fluid pressure. A dimensionally stable, i.e. a geometry of the fluid outlet opening that is largely independent of the fluid pressures occurring during operation ensures, for example, that when the shower jet generating device is used as intended, the characteristics of a shower jet generated are very largely independent of the fluid pressure in the fluid chamber. This is because the fluid outlet opening then always has an essentially constant passage cross-sectional area and cross-sectional shape.
In einer Ausgestaltung der Erfindung ist die Fluidaustrittsöffnung von einer Austrittsdüse mit einer Düsenlängsachse gebildet, die parallel zu einer lokalen Flächennormale einer Außenseite der Strahlscheibe ist. Die Düsenlängsachse kann im Falle von rotationssymmetrischen Fluidaustrittsöffnungen z.B. die Rotationsachse der Fluidaustrittsöffnung sein.In one embodiment of the invention, the fluid outlet opening is formed by an outlet nozzle with a nozzle longitudinal axis which is parallel to a local surface normal of an outside of the jet disk. In the case of rotationally symmetrical fluid outlet openings, the nozzle longitudinal axis can e.g. be the axis of rotation of the fluid outlet opening.
In einer Ausgestaltung der Erfindung weist das Fluidaustrittselement eine Elastomer-ringmembran auf, welche den beweglichen Ventilkörper umgibt und trägt. Die Elastomerringmembran liegt z.B. an der Strahlscheibe an, so dass das Fluidaustrittselement in der zugehörigen Strahlscheibenöffnung angeordnet ist. Die Elastomerringmembran kann die Platzierung des Fluidaustrittselements in der Strahlscheibenöffnung vereinfachen bzw. erleichtern.In one embodiment of the invention, the fluid outlet element has an elastomer ring membrane which surrounds and supports the movable valve body. The elastomer ring membrane is e.g. on the jet disk so that the fluid outlet element is arranged in the associated jet disk opening. The elastomer ring membrane can simplify or facilitate the placement of the fluid outlet element in the jet disk opening.
In einer Ausgestaltung der Erfindung ist das Fluidaustrittselement einteilig ausgeführt. Dies ermöglicht eine Vereinfachung und Kostenreduktion z.B. in der Herstellung des Fluidaustrittselements und/oder der Montage der Brausestrahlerzeugungsvorrichtung.In one embodiment of the invention, the fluid outlet element is made in one piece. This enables simplification and cost reduction, e.g. in the manufacture of the fluid outlet element and / or the assembly of the shower jet generating device.
In einer Ausgestaltung der Erfindung hat die Strahlscheibe eine Mehrzahl von Strahlscheibenöffnungen und zugeordneten Fluidaustrittselementen. Des Weiteren weist die Strahlscheibe eine einteilige Elastomerplatte auf, an der die Mehrzahl von Fluidaustrittselementen ausgebildet ist. Es können z.B. eine beliebige Anzahl zwischen zehn und zweihundert Strahlscheibenöffnungen vorgesehen sein. Verfügen die Fluidaustrittselemente über Elastomerringmembranen, so ist es vorteilhaft, die Fluidaustrittselemente mit der Elastomerringmembran an der Elastomerplatte anzuformen. Die einteilige Ausführung von Elastomerplatte und Fluidaustrittselementen kann sowohl in der Herstellung als auch für die Montage vorteilhaft sein, da eine Bauteilreduktion und eine vereinfachte Handhabung erreicht werden. Die Strahlscheibe kann eine einzige oder eine Mehrzahl von einteiligen Elastomerplatten aufweisen, an denen jeweils eine Mehrzahl von Fluidaustrittselementen ausgebildet ist. Diese einteiligen Elastomerplatten können sich z.B. in der geometrischen Form ihrer angeordneten Fluidaustrittsöffnungen unterscheiden, wodurch die Brausestrahlerzeugungsvorrichtung Bereiche aufweist, die unterschiedliche Brausestrahlen erzeugen können.In one embodiment of the invention, the jet disk has a plurality of jet disk openings and associated fluid outlet elements. Furthermore, the jet disk has a one-piece elastomer plate on which the plurality of fluid outlet elements is formed. For example, any number between ten and two hundred jet disk openings can be provided. If the fluid outlet elements have elastomer ring membranes, it is advantageous to mold the fluid outlet elements with the elastomer ring membrane onto the elastomer plate. The one-piece design of the elastomer plate and fluid outlet elements can be used both in the production as well as for the assembly, since a reduction of components and a simplified handling are achieved. The jet disk can have a single or a plurality of one-piece elastomer plates, on each of which a plurality of fluid outlet elements is formed. These one-piece elastomer plates can differ, for example, in the geometric shape of their arranged fluid outlet openings, as a result of which the shower jet generating device has areas which can generate different shower jets.
Vorteilhafte Ausführungsformen der Erfindung sind in den Zeichnungen dargestellt und werden im Folgenden näher erläutert. Hierbei zeigen:
- Fig. 1
- eine ausschnittweise Schnittansicht einer Brausestrahlerzeugungsvorrichtung mit mehreren Fluidaustrittselementen in Absperrposition und ebenen Ventilsitzen,
- Fig. 2
- die Schnittansicht von
Fig. 1 mit den Fluidaustrittselementen in Freigabeposition, - Fig. 3
- eine Detailansicht eines einzelnen Fluidaustrittselements von
Fig. 1 , - Fig. 4
- eine Detailansicht eines einzelnen Fluidaustrittselements von
Fig. 2 , - Fig. 5
- eine Schnittansicht entsprechend
Fig. 1 für eine Variante mit profilierten Ventilsitzen, - Fig. 6
- eine Schnittansicht entsprechend
Fig. 2 für die Variante vonFig. 5 , - Fig. 7
- eine Detailschnittansicht eines einzelnen Fluidaustrittselements von
Fig. 5 und - Fig. 8
- eine Detailansicht eines einzelnen Fluidaustrittselements von
Fig. 6 .
- Fig. 1
- a partial sectional view of a shower jet generating device with several fluid outlet elements in the shut-off position and flat valve seats,
- Fig. 2
- the sectional view of
Fig. 1 with the fluid outlet elements in the release position, - Fig. 3
- a detailed view of a single fluid outlet element of FIG
Fig. 1 , - Fig. 4
- a detailed view of a single fluid outlet element of FIG
Fig. 2 , - Fig. 5
- a sectional view accordingly
Fig. 1 for a variant with profiled valve seats, - Fig. 6
- a sectional view accordingly
Fig. 2 for the variant ofFig. 5 , - Fig. 7
- a detailed sectional view of a single fluid outlet element of FIG
Fig. 5 and - Fig. 8
- a detailed view of a single fluid outlet element of FIG
Fig. 6 .
Die in
Die mehrteilige Strahlscheibe 1 umfasst eine Elastomerplatte 13, die z.B. aus einem Silikonmaterial mit einer Shore-Härte von vorzugsweise zwischen fünfzig und siebzig, z.B. sechzig, bestehen kann, und eine Metallplatte 14, wobei die Elastomerplatte 13 fluidkammerseitig an der Metallplatte 14 anliegt. Des Weiteren ist eine Gehäuseplatte 8 des Brausekopfs der Strahlscheibe 1 gegenüberliegend und die Fluidkammer 3 begrenzend angeordnet. Dabei ist die Elastomerplatte 13 mit ihrem äußeren Randbereich zwischen der Gehäuseplatte 8 und der Metallplatte 14 die Fluidkammer 3 abdichtend gehalten.The
An der einteiligen Elastomerplatte 13 ist eine Mehrzahl von Elastomer-Ringmembranen 12 ausgebildet, die je ein bewegliches Fluidaustrittselement 4 umgeben und tragen. Somit ist das Fluidaustrittselement 4 über die Elastomer-Ringmembran 12 mit der Elastomerplatte 13 verbunden bzw. an dieser gehalten. Des Weiteren ist die in
Das jeweilige Fluidaustrittselement 4 weist eine Fluidaustrittsöffnung 5 auf, die aus der Fluidkammer 3 ausmündet und nach Art einer Austrittsdüse ausgebildet ist. Die Fluidaustrittsöffnung 5 bzw. die Austrittsdüse hat eine von der Fluidkammer 3 aus kommend eintrittsseitig kegelstumpfförmig konische Geometrie, an die sich austrittsseitig eine kreiszylindrische Geometrie als Endabschnitt anschließt, in welchem die Fluidaustrittsöffnung 5 auf einen Austrittsdurchmesser verjüngt ist, der z.B. typisch im Bereich von 0,6 mm bis 1,2 mm, insbesondere von 0,85 mm bis 0,95 mm, liegt. Die Fluidaustrittsöffnung 5 bzw. Austrittsdüse weist eine bei bestimmungsgemäßem Gebrauch der Brausestrahlerzeugungsvorrichtung fluiddruckunabhängige und formstabile Geometrie auf. Die Symmetrieachse der Fluidaustrittsöffnung 5 ist eine Düsenlängsachse 11, die gleichzeitig eine axiale Hauptrichtungskomponente der Bewegung des beweglichen Fluidaustrittselements 4 ist. Die Düsenlängsachse 11 entspricht zudem einer lokalen Flächennormale einer Außenseite der Strahlscheibe 1 an der betreffenden Stelle.The respective
Des Weiteren weist das Fluidaustrittselement 4 einen beweglichen Ventilkörper 6 auf, an dem die Fluidaustrittsöffnung 5 angeordnet ist, wobei der bewegliche Ventilkörper 6 ein rotationssymmetrisches Element in der Art einer Tellerfeder ist. Der bewegliche Ventilkörper 6 ist für die Bewegung des Fluidaustrittselements 4 und somit auch für die Bewegung der Fluidaustrittsöffnung 5 verantwortlich. Infolge der Bewegung des Ventilkörpers 6 wird das Fluidaustrittselement 4 zwischen einer die Fluidaustrittsöffnung 5 freigebenden oder absperrenden Position geschaltet, wobei der bewegliche Ventilkörper 6 mit einem unbeweglichen Ventilsitz 7 zusammenwirkt. Ursächlich für diese Bewegung ist ein in der Fluidkammer 3 herrschender Fluiddruck, der vom zugeleiteten Wasser erzeugt wird. Der Fluiddruck wirkt auf den beweglichen Ventilkörper 6, und sobald ein vorgegebener Grenzdruck zwischen 0,2 bar bis 0,35 bar, insbesondere zwischen 0,24 bar bis 0,26 bar, in der Fluidkammer überschritten ist, wird der Ventilkörper 6 und damit das Fluidaustrittselement 4 mit axialer Hauptrichtungskomponente durch den Druck aus einer Absperrposition in eine Freigabeposition bewegt, in welcher der Ventilkörper 6 die Fluidaustrittsöffnung 5 freigibt. Fällt der Fluiddruck unter den vorgegebenen Grenzdruck, bewegt sich der Ventilkörper 6 selbsttätig in seine ursprüngliche, die Fluidaustrittsöffnung 5 absperrende Position zurück.Furthermore, the
In
Der in
Des Weiteren ist in
Im gezeigten Beispiel weist das jeweilige Fluidaustrittselement 4 bzw. sein Ventilkörper 6 eine monostabile Formgebung auf, d.h. eine Formgebung derart, dass das Fluidaustrittselement 4 bzw. sein Ventilkörper 6 genau eine stabile Position aufweist, die vorliegend durch die Absperrposition entsprechend
In den
In den
Bei der Variante der
Außerdem weist der unbewegliche Ventilsitz 7 bei der Variante der
In einer nicht dargestellten erfindungsgemäßen Variante der Brausestrahlerzeugungsvorrichtung ist der unbewegliche Ventilsitz 7 in Form eines vorzugsweise kegelstumpfförmigen Stopfens ausgeführt, welcher in Absperrposition die Fluidaustrittsöffnung 5 verschließt. Der stopfenförmige unbewegliche Ventilsitz 7 ragt dabei in die Fluidaustrittsöffnung 5 hinein.In a variant of the shower jet generating device according to the invention, which is not shown, the
In einer nicht dargestellten erfindungsgemäßen Variante der Brausestrahlerzeugungsvorrichtung weist eine Zwischenplatte statt der gezeigten Gehäuseplatte 8 den unbeweglichen Ventilsitz auf. Diese Zwischenplatte ist vorzugsweise in einen Brausekopf integriert und wirkt als Begrenzung der Fluidkammer auf deren der Strahlscheibe gegenüberliegenden Seite.In a variant of the shower jet generating device according to the invention, which is not shown, an intermediate plate has the immovable valve seat instead of the
Wie die gezeigten und oben erläuterten Ausführungsbeispiele deutlich machen, stellt die Erfindung eine Brausestrahlerzeugungsvorrichtung bereit, die das unerwünschte Nachtropfen zuverlässig verhindert, relativ einfach herstellbar und funktionssicher ist. Des Weiteren ist der Austrittsquerschnitt der Fluidaustrittsöffnung weitestgehend vom Fluiddruck in der Fluidkammer unbeeinflusst. Die Erfindung ist insbesondere in der Sanitärtechnik einsetzbar, aber auch in anderen Anwendungen, in denen der Bedarf besteht, einen Brausestrahl funktionssicher und ohne Nachtropfen erzeugen zu können.As the exemplary embodiments shown and explained above make clear, the invention provides a shower jet generating device which reliably prevents unwanted dripping, is relatively easy to manufacture and is functionally reliable. Furthermore, the exit cross section of the fluid exit opening is largely unaffected by the fluid pressure in the fluid chamber. The invention can be used in particular in sanitary engineering, but also in other applications in which there is a need to be able to generate a shower jet functionally reliably and without dripping.
Claims (10)
- Shower jet generating device for a sanitary shower head, comprising- a jet disk (1), including at least one jet disk opening (2) and delimiting a fluid chamber (3) on the outlet side, and- a fluid outlet element (4) disposed on the at least one jet disk opening and movable in an axial main direction component, which element includes a movable valve body (6) having a fluid outlet opening (5) issuing from the fluid chamber, which fluid outlet opening is unblocked in an unblocking position of the fluid outlet element and is blocked in a blocking position of the fluid outlet element in response to a fluid pressure in the fluid chamber,characterized in that- the movable valve body (6) cooperates with an unmovable valve seat (7), which unblocks the fluid outlet opening (5) in the unblocking position of the fluid outlet element and blocks it in a blocking position of the fluid outlet element.
- Shower jet generating device according to claim 1, characterized in that the fluid chamber is delimited by a partition plate or housing plate (8) including the unmovable valve seat, wherein the partition plate or housing plate is arranged opposite to the jet disk.
- Shower jet generating device according to any of the preceding claims, characterized in that the movable valve body abuts on a valve abutment surface (9) of the jet disk in the unblocking position of the fluid outlet element.
- Shower jet generating device according to any of the preceding claims, characterized in that the fluid outlet element with its fluid outlet opening in its unblocking position and/or in its blocking position extends through the jet disk opening.
- Shower jet generating device according to any of the preceding claims, characterized in that the valve seat has a valve seat projection (10) which protrudes into the fluid outlet opening when the fluid outlet opening is blocked.
- Shower jet generating device according to any of the preceding claims, characterized in that the fluid outlet opening has a dimensionally stable and/or circular cylindrical and/or conical geometry independent of fluid pressure.
- Shower jet generating device according to any of the preceding claims, characterized in that the fluid outlet opening is provided by an outlet nozzle with a nozzle longitudinal axis (11) extending in parallel to a local surface normal of an exterior side of the jet disk.
- Shower jet generating device according to any of the preceding claims, characterized in that the fluid outlet element includes an elastomeric ring membrane (12) surrounding and supporting the movable valve body.
- Shower jet generating device according to any of the preceding claims, characterized in that the fluid outlet element has a one-piece design.
- Shower jet generating device according to any of the preceding claims, characterized in that a plurality of jet disk openings and associated fluid outlet elements is provided, and the jet disk includes a one-piece elastomeric plate (13) on which the plurality of fluid outlet elements are disposed.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102016219551.4A DE102016219551B4 (en) | 2016-10-07 | 2016-10-07 | Shower jet generating device |
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EP3305412A1 EP3305412A1 (en) | 2018-04-11 |
EP3305412B1 true EP3305412B1 (en) | 2020-11-18 |
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EP17194704.7A Active EP3305412B1 (en) | 2016-10-07 | 2017-10-04 | Spray jet generating device |
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Country | Link |
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US (1) | US10821453B2 (en) |
EP (1) | EP3305412B1 (en) |
CN (1) | CN107913807B (en) |
DE (1) | DE102016219551B4 (en) |
RU (1) | RU2668252C1 (en) |
ZA (1) | ZA201706662B (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL249680B (en) * | 2016-12-21 | 2018-05-31 | Zabari Lidor | Self-sealing shower head with disinfectant |
DE102016225987A1 (en) | 2016-12-22 | 2018-06-28 | Hansgrohe Se | Effervescent spray outlet device and shower equipped therewith |
CN110573198B (en) * | 2017-04-19 | 2022-04-15 | 巴克斯特国际公司 | Non-clogging dispensing device |
DE102018201183B3 (en) | 2018-01-25 | 2019-01-31 | Hansgrohe Se | Shower jet generating device with pressure relief valve |
DE102018210331B3 (en) * | 2018-06-25 | 2019-08-22 | Hansgrohe Se | Sanitary shower head |
DE102019105974A1 (en) * | 2019-03-08 | 2020-09-10 | Grohe Ag | Sanitary shower having a jet generator with at least one duck bill valve |
CN113492079A (en) * | 2020-04-03 | 2021-10-12 | 路达(厦门)工业有限公司 | Self-cleaning device, shower head, spray gun and faucet |
DE102021132866A1 (en) * | 2021-12-13 | 2023-06-15 | Grohe Ag | Shower jet generating device with anti-drip device |
DE102022106831A1 (en) * | 2022-03-23 | 2023-09-28 | Grohe Ag | Sanitary shower head |
Family Cites Families (25)
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US1236617A (en) * | 1915-09-17 | 1917-08-14 | Speakman Supply & Pipe Company | Self-cleaning shower-head. |
US2402741A (en) | 1944-10-03 | 1946-06-25 | Adolphe O Draviner | Spray head |
US3734410A (en) * | 1971-09-30 | 1973-05-22 | Stanadyne Inc | Pulsating spray head |
BE795888A (en) * | 1972-03-29 | 1973-06-18 | Grohe Kg Hans | SHOWERHEAD |
DK0443538T3 (en) | 1990-02-22 | 1993-11-22 | Masco Gmbh | shower head |
JPH0499243U (en) | 1991-01-17 | 1992-08-27 | ||
EP0744997B1 (en) | 1994-02-17 | 2001-09-19 | Ideal-Standard GmbH & Co. OHG | Base part for a spray head, and spray head |
DE19733291A1 (en) | 1997-08-01 | 1999-02-04 | Grohe Kg Hans | Shower equipment |
US6378790B1 (en) * | 2000-01-26 | 2002-04-30 | Speakman Company | Shower head having a rubber/plastic face plate and a diverter valve using rubber sleeve back pressure activation |
US6382531B1 (en) | 2001-02-21 | 2002-05-07 | Martin Tracy | Shower head |
US6935581B2 (en) | 2001-07-24 | 2005-08-30 | Visentin Usa | Shower head with nozzles having self cleaning tips |
GB0121377D0 (en) * | 2001-09-04 | 2001-10-24 | Aqualisa Products Ltd | Shower handset |
US7040554B2 (en) * | 2002-12-20 | 2006-05-09 | Asept International Ab | Spray head |
DE102005012706B4 (en) | 2005-03-11 | 2006-11-23 | Hansa Metallwerke Ag | showerhead |
DE102006032017B3 (en) | 2006-07-10 | 2008-01-17 | Grohe Ag | shower head |
AU2009238194B2 (en) | 2008-04-17 | 2017-05-18 | Exell Technology Pty Limited | A showerhead |
FR2946546B1 (en) | 2009-06-15 | 2012-06-08 | Air Liquide | PROCESS FOR REGULATING THE OXYGEN PURITY PRODUCED BY A FLOW CONTROL ADSORPTION UNIT |
US8985483B2 (en) * | 2012-01-24 | 2015-03-24 | John E. Petrovic | Adjustable trajectory spray nozzles |
DE102012212300A1 (en) | 2012-07-13 | 2014-01-16 | Hansgrohe Se | shower |
US9839923B2 (en) * | 2012-08-02 | 2017-12-12 | Fabrimar S/A Industria E Comercio | Showerhead |
DE102012107721B3 (en) | 2012-08-22 | 2014-10-30 | Ideal Standard International B.V.B.A. | Shower head with a springy water conducting mat |
CA2879794C (en) | 2012-08-24 | 2022-01-11 | Syngenta Participations Ag | Methods of soil pest control |
CN203108678U (en) * | 2012-12-28 | 2013-08-07 | 厦门水大卫浴洁具有限公司 | Oxygenous top shower with self-cleaning water-out nozzle |
DE102014200741A1 (en) | 2014-01-16 | 2015-07-16 | Hansgrohe Se | Shower with multi-channel jet outlet units |
DE102016225987A1 (en) | 2016-12-22 | 2018-06-28 | Hansgrohe Se | Effervescent spray outlet device and shower equipped therewith |
-
2016
- 2016-10-07 DE DE102016219551.4A patent/DE102016219551B4/en not_active Expired - Fee Related
-
2017
- 2017-09-30 CN CN201710913672.5A patent/CN107913807B/en active Active
- 2017-10-02 US US15/722,411 patent/US10821453B2/en active Active
- 2017-10-04 ZA ZA2017/06662A patent/ZA201706662B/en unknown
- 2017-10-04 EP EP17194704.7A patent/EP3305412B1/en active Active
- 2017-10-04 RU RU2017134870A patent/RU2668252C1/en active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
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DE102016219551B4 (en) | 2022-01-05 |
US10821453B2 (en) | 2020-11-03 |
DE102016219551A1 (en) | 2018-04-12 |
RU2668252C1 (en) | 2018-09-27 |
US20180099295A1 (en) | 2018-04-12 |
EP3305412A1 (en) | 2018-04-11 |
ZA201706662B (en) | 2019-05-29 |
CN107913807A (en) | 2018-04-17 |
CN107913807B (en) | 2020-08-25 |
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