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EP3510204B1 - Sanitary insert unit - Google Patents

Sanitary insert unit Download PDF

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Publication number
EP3510204B1
EP3510204B1 EP17739196.8A EP17739196A EP3510204B1 EP 3510204 B1 EP3510204 B1 EP 3510204B1 EP 17739196 A EP17739196 A EP 17739196A EP 3510204 B1 EP3510204 B1 EP 3510204B1
Authority
EP
European Patent Office
Prior art keywords
jet
insert unit
unit according
sanitary
splitter
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
Application number
EP17739196.8A
Other languages
German (de)
French (fr)
Other versions
EP3510204A1 (en
Inventor
Eugen Willmann
Wolf-Dieter Lacher
Holger Schürle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Neoperl GmbH
Original Assignee
Neoperl GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Neoperl GmbH filed Critical Neoperl GmbH
Priority to EP19168396.0A priority Critical patent/EP3540131B1/en
Publication of EP3510204A1 publication Critical patent/EP3510204A1/en
Application granted granted Critical
Publication of EP3510204B1 publication Critical patent/EP3510204B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02Plumbing installations for fresh water
    • E03C1/08Jet regulators or jet guides, e.g. anti-splash devices
    • E03C1/086Jet regulators or jet guides, easily mountable on the outlet of taps
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02Plumbing installations for fresh water
    • E03C1/04Water-basin installations specially adapted to wash-basins or baths
    • E03C1/0404Constructional or functional features of the spout
    • E03C1/0405Constructional or functional features of the spout enabling multiple spray patterns
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02Plumbing installations for fresh water
    • E03C1/08Jet regulators or jet guides, e.g. anti-splash devices
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02Plumbing installations for fresh water
    • E03C1/08Jet regulators or jet guides, e.g. anti-splash devices
    • E03C1/084Jet regulators with aerating means

Definitions

  • the invention relates to a sanitary insert unit with an insert housing which can be mounted on or in a water outlet of a sanitary outlet fitting and in the interior of the housing a liquid path is provided which, when in use, guides water flowing through the interior of the housing, wherein in the liquid path there is a jet splitter with a plurality of splitter openings are provided, which divide the water flowing through into a plurality of individual jets, and with at least one grid or network structure following the jet splitter in the liquid path, with a flow rate regulator being provided in the insert housing in front of the jet splitter, which regulates the water flowing through during use regulates a pressure-independent maximum flow rate, and wherein the flow rate regulator has at least one elastic annular throttle body which surrounds a regulator core and delimits a control gap between itself and a control profile provided on the outer peripheral wall of the regulator core or an inner peripheral wall surrounding the throttle body, which control gap opens under the pressure of the water flowing through is changed in such a way that the flow rate of the flow rate regulator does not exceed
  • a sanitary insertion unit with an insertion housing is already known can be mounted in one or in a water outlet of a sanitary outlet fitting and in the interior of the housing a liquid path is provided which, when in use, carries water flowing through the interior of the housing.
  • a jet splitter with a plurality of splitter openings is provided in the liquid path of the previously known insertion unit, which divide the water flowing through into a plurality of individual jets.
  • a grid or network structure is arranged downstream of the jet splitter in the flow path.
  • a flow rate regulator is provided on the inflow side in front of the jet splitter, which regulates the water flowing through during use to a pressure-independent maximum flow rate.
  • This flow rate regulator has at least one elastic annular throttle body, which surrounds a regulator core and delimits a control gap between itself and a control profile provided on the outer circumferential wall of the regulator core or an inner circumferential wall surrounding the throttle body, which control gap changes under the pressure of the water flowing through in such a way that the Flow rate of the flow rate regulator does not exceed a pressure-independent maximum value.
  • the flow rate regulator used in the previously known sanitary insertion unit is assigned at least one by-pass and/or cleaning channel, the at least one channel inlet of which is arranged in the flow direction in front of the control gap and the at least one channel outlet in the flow direction is arranged after the control gap.
  • this by-pass and/or cleaning channel there is a valve which can be moved under the pressure of the inflowing fluid from an open position against a restoring force into a closed position and which closes the by-pass and/or cleaning channel in its closed position. Since the flow rate regulator provided in the previously known insertion unit operates at a low pressure of the inflowing fluid through the by-pass channel allows an additional amount of fluid to pass through, the flow curve of the flow rate regulator used in the previously known insertion unit is significantly increased in the low pressure range, which leads to an enormous increase in comfort for applications with low pressure.
  • the total jet which may have been enriched by the subset supplied via the by-pass channel, emerges from the outlet end face of the previously known insertion unit as a homogeneous overall jet, without the previously known insertion unit being able to offer the user the additional possibility, if necessary, of objects even with small amounts of water escaping per unit of time clean with a powerful cleaning jet.
  • a sanitary insert unit with an insert housing is already known, which can be mounted on the water outlet of a sanitary outlet fitting using an outlet mouthpiece (see publication on the Internet at www.neoperl.net/de/oem/products/aerators/productlines/perlator hcflowthru.html as well US D622,356 p ).
  • a fluid path is provided in the housing interior of the insert housing, which carries water flowing through the housing interior.
  • a jet splitter with a plurality of splitter openings is provided in the liquid path, which direct the water flowing through into divide a plurality of individual jets, with at least one grid or network structure downstream of the jet splitter in the liquid path, which combines the aerated individual jets before a homogeneous overall jet of aerated water emerges from the insertion housing.
  • a central by-pass channel is provided in the insert housing, which bypasses the liquid path at least in sections and its outflow-side channel opening over the outlet end face of the insert housing presides.
  • a sanitary insert unit of the type mentioned at the beginning is already known, which can be mounted on the water outlet of a sanitary outlet fitting in order to be able to change the liquid flow there if necessary using a switching device.
  • the previously known insertion unit has an insertion housing, in the housing interior of which a liquid path is provided, which guides water flowing through the housing interior when the insertion unit is in use.
  • a valve plate-like closure part is provided on a fixed housing part, which interacts with a sleeve which is axially adjustable inside the insert housing and serves as a valve seat.
  • the valve plate-like closure part is molded onto a holding plate which has a plurality of flow-through or separation openings arranged on a circular path.
  • the jet regulator which is arranged on the outflow side of the closure part in the central passage channel, in turn has a cone-shaped attachment screen with a large number of small filter openings, which form a grid or net structure on the attachment screen.
  • the previously known insert unit is less suitable for cleaning a wet razor or other objects because the jet aerator provided in the central passage channel tends to provide a pearly-soft jet of water, while the shower jet is formed from a large number of individual jets that are thin in cross section.
  • Previously known insertion unit has a central cleaning jet channel and a flow chamber with a plurality of water outlet nozzles.
  • the water entry to the flow chamber is at least a valve that is preloaded in its closed position and can be opened by the water flowing in during use at a predeterminable dynamic pressure of the water.
  • the valve has a valve piston with a valve plate that is axially displaceable in the water flow direction and the valve plate in turn has at least one water inlet opening which leads to the cleaning jet channel.
  • water supply is opened during use, water initially only flows through the cleaning jet channel in the valve piston on the water inlet side and emerges from the known insertion unit as a single, sharp cleaning jet on the water outlet side. If the water supply is further increased, the increase in the dynamic pressure of the inflowing water at the valve plate leads to the fact that, from a certain amount of water, the opening force for the valve from above is greater than the closing force of the compression spring, so that ultimately the valve piston with the cleaning jet channel arranged therein and the valve plate is pushed down and the valve is opened.
  • the at least one bay pass channel is designed as a nozzle for generating at least one accelerated liquid jet
  • the at least one bypass channel is at least in one Section has a tapering clear channel cross section.
  • An advantageous embodiment of the invention provides that the at least one by-pass channel widens or narrows at least in at least one conical section towards its downstream channel opening, and that the by-pass channel passes through the jet splitter.
  • a further advantageous embodiment of the invention provides that the flow rate regulator is arranged on the inflow side in front of an inflow-side channel opening of the by-pass channel.
  • the insertion unit according to the invention has an insertion housing which can be mounted on or in a water outlet of a sanitary outlet fitting.
  • an external thread can be provided on the outer circumference of the insert housing, which can be screwed to an internal thread in the water outlet.
  • the insertion housing it is also possible for the insertion housing to be inserted into a sleeve-shaped outlet mouthpiece, which can be screwed to a counter-thread on the water outlet using a thread.
  • a fluid path is provided in the interior of the insert housing through which water flowing through can be guided.
  • a jet splitter is provided in this liquid path and has a plurality of splitter openings which divide the water flowing through into a plurality of individual jets.
  • the jet splitter is followed by at least one grid or network structure in the liquid path, which acts as a flow straightener or as a homogenizing device and is intended to form the individual jets coming from the jet splitter, if necessary after enrichment and mixing with ambient air, into a soft overall jet emerging from the insert housing.
  • the insertion unit according to the invention has at least one bypass channel which at least partially bypasses the liquid path and which is used to generate at least one accelerated liquid flow. or cleaning jet. In the overall jet flowing out of the sanitary insertion unit, a liquid or cleaning jet that is accelerated compared to the overall jet is thus generated with the aid of the at least one by-pass channel designed as a nozzle, which is characterized by increased cleaning power compared to the rest of the overall jet.
  • a flow rate regulator is provided in the insert housing on the inflow side in front of the jet splitter, which regulates the water flowing through to a pressure-independent maximum flow rate.
  • the flow rate regulator has at least one elastic annular throttle body which surrounds a regulator core and between itself and an inner circumferential wall on the outer peripheral wall of the regulator core or an inner circumferential wall surrounding the throttle body
  • the control profiling limits a control gap, which control gap changes under the pressure of the water flowing through in such a way that the flow rate of the flow rate controller does not exceed a pressure-independent maximum value.
  • the by-pass channel tapers or narrows at least in at least one conical section towards its downstream channel opening, and if the by-pass channel passes through the jet splitter. Since the at least one by-pass channel according to the proposed invention described in applicable patent claim 2 tapers or narrows at least in at least one conical section towards its downstream channel opening, an effective flow rate can also be achieved in the by-pass channel by means of the comparatively low flow rate Liquid or cleaning jet can be formed. Since the insertion unit designed according to this proposed invention has a by-pass channel that passes through the jet splitter, a liquid or cleaning jet can be formed without taking the jet splitter and, if necessary, the upstream flow rate regulator into account.
  • a special embodiment of the invention that is structurally particularly simple and can be produced with little effort provides that the by-pass channel has an inflow-side channel opening which is arranged in the liquid path below at least one of the separation openings and in particular below at least two of the separation openings.
  • a liquid or cleaning jet is generated from at least one individual jet formed in the jet splitter.
  • a particularly advantageous embodiment which is characterized by a particularly effective cleaning jet, provides that the smallest clear channel cross section of the at least one by-pass channel comprises a clear cross-sectional area that is smaller than the cross-sectional area of the channel opening in the inflow side opening into the cutting opening or as the sum of the clear ones Cross-sectional areas of the disassembly openings opening into the inflow-side channel opening.
  • the beam splitter is designed as a perforated plate.
  • the jet splitter is designed as a diffuser which has a baffle surface which deflects the incoming water towards splitter openings which are provided in an outer peripheral wall of the diffuser.
  • the outflowing water is first slowed down and deflected on the baffle surface of the diffuser, which is pot-shaped, for example, at least in this partial area, before the water deflected in this way, in particular outwards, is divided into individual jets in the separation openings, which separation openings are provided in the outer peripheral wall of the diffuser.
  • a preferred embodiment according to the invention provides that the outer peripheral wall of the diffuser is surrounded by a diffuser ring, and that between the outer peripheral wall and the diffuser ring an annular gap is provided, which tapers at least in sections in the direction of flow of the water.
  • Disturbances caused by dirt particles carried in the water flow can be avoided, and trouble-free functioning of the insertion unit and its components can be achieved if the insertion unit has a filter sieve, which filter sieve is arranged in the inflow direction in front of the jet splitter and, if necessary, in front of the intermediate flow rate regulator.
  • the by-pass channel passes through the jet splitter and possibly also an upstream flow rate regulator, it may be expedient if the inflow-side channel opening of the by-pass channel is arranged directly below the filter sieve in the inflow direction. This also prevents the dirt particles carried in the water from clogging or even narrowing the nozzle opening provided in the by-pass channel.
  • a preferred embodiment of the invention provides that the filter screen expands, preferably conically, in the direction of flow.
  • This embodiment has the advantage that it consists, for example, of the inflow-side attachment or filter screen, an outflow-side jet regulator and, if necessary, a flow rate regulator connected in between or flow restrictor formed insertion unit can be designed at least on its outer peripheral edge with a comparatively small longitudinal extent, although the sieve surface of the attachment or filter sieve protruding into the inflow-side clear cross section of the outlet fitting was made comparatively large.
  • the filter sieve has a funnel-shaped shape, and that the funnel shape of the filter sieve tapers towards an inflow-side channel opening of the at least one by-pass channel.
  • the insertion unit according to the invention which encloses a hard cleaning jet that is arranged in its center and can be easily found there, it is advantageous if the by-pass channel is arranged approximately coaxially to the longitudinal central axis of the insertion housing .
  • a further development of the invention provides that the by-pass channel tapers towards a preferably central nozzle opening in order to generate a water jet, which nozzle opening has the smallest clear cross section of the by-pass channel.
  • annular gap or the nozzle opening forms a downstream channel opening of the by-pass channel.
  • an object to be cleaned can be arranged at a short distance below the channel opening of the by-pass channel, so that this cleaning jet hits the object to be cleaned practically unhindered and can fully develop its cleaning power there.
  • a preferred embodiment of the invention provides that the downstream channel opening of the by-pass channel is arranged approximately in a downstream end plane of the insert housing.
  • the water flowing through the liquid path in the insert housing can be formed into a soft and non-splashing overall jet on the outlet side
  • a grid structure with approximately honeycomb cell shape is provided on an outflow-side end face of the insert housing Grid openings.
  • the webs forming the grid structure can have a longitudinal extent oriented in the flow direction, which is the same or larger than the maximum clear opening cross section of the grid openings. Due to the honeycomb cell-shaped design of the grid openings, there is only a small resistance to the water flowing through and yet a non-splashing overall jet can be formed particularly well.
  • a preferred embodiment of the invention provides that several insert parts are inserted into the insert housing, which are arranged in the liquid path below the jet splitter.
  • the sanitary insert part for mixing the water flowing through the liquid path with ambient air has at least one ventilation channel, which opens in the liquid path, preferably below the jet splitter.
  • a preferred embodiment of the invention provides that the at least one ventilation channel is designed as a housing opening provided in a housing peripheral wall of the insert housing.
  • a sanitary insert unit 1 is shown.
  • the insertion unit 1 has an insertion housing 2, which can be mounted on a water outlet 3 of a sanitary outlet fitting not otherwise shown here.
  • the insertion housing 2 of the insertion unit 1 can be inserted from the inflow side into a sleeve-shaped outlet mouthpiece 4 until an annular flange 5 provided on the outer circumference of the insertion housing 2 rests on an annular shoulder serving as a support 7 on the inner circumference of the outlet mouthpiece 4.
  • the outlet mouthpiece 4 can be screwed with a thread 8 to a mating thread 27 on the water outlet 3, the separation zone being able to be sealed by means of a sealing ring 29.
  • a liquid path is provided through which water flowing through can be guided.
  • a jet splitter 9 is provided in this liquid path and has a plurality of splitter openings 11 which divide the water flowing through into a plurality of individual jets.
  • the jet splitter 9 of the insertion units 1 is followed by at least one grid or network structure 14, 15 in the liquid path, which acts as a flow straightener or as a homogenizing device and the individual jets coming from the jet splitter, if necessary after they have been enriched and mixed with ambient air, into a soft one emerging from the insertion housing 2, should form a non-splashing overall jet.
  • the insertion unit 1 has at least one bypass channel 16, which at least partially bypasses the liquid path and is used to generate at least one accelerated liquid or cleaning jet is intended.
  • this by-pass channel 16 has a tapering clear channel cross section, at least in a partial section.
  • a cleaning jet that is accelerated compared to the overall jet and is characterized by a high cleaning power is thus generated with the aid of the at least one by-pass channel 16 designed as a nozzle.
  • the by-pass channel 16 is arranged approximately coaxially to the longitudinal center axis of the insertion housing 2 of the insertion unit 1 .
  • the grid structure 14 provided on the downstream end face of the insert housing 2, which is here integrally formed onto the insert housing 2, has honeycomb cell-shaped grid openings 17, which can guide and shape the water flowing through well due to the longitudinal extent of the webs forming this grid structure 14, but this Offer only a small resistance to the water flow.
  • Annular insert parts 28 are inserted into the insert housing 2 of the insert unit 1 and have a grid or net structure 15 interposed in the fluid path.
  • the insert parts 28 of the insert unit 1 shown here have a spider web-like structure made of concentric webs that intersect with radial webs at intersection nodes.
  • the grid or net structures 15 formed in the insert parts 28 promote good mixing of the water flowing through with the ambient air sucked into the housing interior of the insert housing 2.
  • the sanitary insertion unit 1 has at least one ventilation channel which opens into the liquid path below the jet splitter 9.
  • This at least one ventilation channel is designed here as a housing opening 18 provided in the housing peripheral wall of the insert housing 2.
  • a flow rate regulator 19 is provided in the insert housing 2 on the inflow side in front of the jet splitter 9, which regulates the water flowing through to a pressure-independent maximum flow rate.
  • the flow rate regulator 19 used in the insertion unit 1 has an elastic annular throttle body 20 made of elastic material, which surrounds a regulator core 21 and delimits a control gap between itself and a control profile provided on the outer peripheral wall of the regulator core or an inner circumferential wall surrounding the throttle body 20, which control gap changes under the pressure of the water flowing through in such a way that the flow capacity of the flow rate regulator 20 does not exceed a pressure-independent maximum value.
  • the by-pass channel 16 passes through the beam splitter 9.
  • Insertion unit 1 shown is designed as a simple perforated plate
  • the jet splitter of an insertion unit not shown here can also be designed as a diffuser, which has a baffle surface which deflects the incoming water towards the splitter openings, which are provided in an outer peripheral wall of the jet splitter designed as a diffuser .
  • the outer peripheral wall of the jet splitter designed as a diffuser can be surrounded by an annular surface, between the outer peripheral wall and this annular surface is provided with an annular gap which tapers at least in sections in the direction of flow of the water. According to Bernoulli's equation, a negative pressure is formed on the outflow side of the annular gap in the housing interior, with the help of which ambient air can be sucked in.
  • the insertion unit 1 has a filter sieve 25 which is arranged in the inflow direction in front of the jet splitter 9 and possibly also in front of the intermediate flow rate regulator 19.
  • the filter sieve 25 of the insertion unit 1 is funnel-shaped, the funnel shape of this filter sieve 25 tapering towards an inflow-side channel opening of the at least one by-pass channel 16 provided in the insertion unit 1.
  • the by-pass channel 16 tapers in the Figures 1 to 5 Insertion unit 1 shown towards a central nozzle opening, which nozzle opening has the smallest clear cross section of the relevant by-pass channel.
  • the nozzle opening of the by-pass channel 16 provided in the insertion unit 1 forms a downstream channel opening.
  • a comparatively hard cleaning jet is additionally provided in the insertion unit 1, which still enables effective cleaning of dirty hands, toothbrushes, razors or other objects.
  • a portion of the water flowing to the insertion unit 1 is collected in the at least one by-pass channel 16, bundled there and then guided through a nozzle opening designed as an annular gap or as a hole.
  • the concentrated, relatively hard cleaning jet is created, which is strong enough to be able to clean even a dirty object better.
  • the amount of water passed through the by-pass channel 16 can be regulated by the flow rate regulator 19 connected upstream in the insert housing 2.
  • the water flow guided through the liquid path, which is not collected in the nozzle-like by-pass channel 16, first passes through the jet splitter 9 and then the grid or network structures 14, 15 downstream of the jet splitter 9, as in a conventional jet regulator or jet aerator , which can be used as a flow straightener or also serve as a homogenizing device.
  • the focused, sharp cleaning jet arranged centrally in the insertion unit 1 is surrounded on the circumference by the soft overall jet flowing out of the liquid path, so that the cleaning jet is practically not visible. The user is given the impression that they have a normal jet of water in front of them, but with which a sufficient cleaning effect can be achieved if necessary.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Nozzles (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Water Treatment By Sorption (AREA)

Description

Die Erfindung betrifft eine sanitäre Einsetzeinheit mit einem Einsetzgehäuse, das an einem oder in einem Wasserauslauf einer sanitären Auslaufarmatur montierbar ist und in dessen Gehäuseinnenraum ein Flüssigkeitsweg vorgesehen ist, welcher bei Gebrauch durch den Gehäuseinnenraum strömendes Wasser führt, wobei in dem Flüssigkeitsweg ein Strahlzerleger mit einer Mehrzahl von Zerlegeröffnungen vorgesehen ist, die das durchströmende Wasser in eine Mehrzahl von Einzelstrahlen aufteilen, und mit zumindest einer, dem Strahlzerleger im Flüssigkeitsweg nachfolgenden Gitter- oder Netzstruktur, wobei im Einsetzgehäuse zuströmseitig vor dem Strahlzerleger ein Durchflussmengenregler vorgesehen ist, der das bei Gebrauch durchströmende Wasser auf eine druckunabhängige maximale Durchflussleistung einregelt, und wobei der Durchflussmengenregler mindestens einen elastischen ringförmigen Drosselkörper hat, der einen Reglerkern umgreift und zwischen sich und einer, an der Außenumfangswandung des Reglerkerns oder einer dem Drosselkörper umgebenden Innenumfangswandung vorgesehenen Regelprofilierung einen Steuerspalt begrenzt, welcher Steuerspalt sich unter dem Druck des durchströmenden Wassers derart verändert, dass die Durchflussleistung des Durchflussmengenreglers einen druckunabhängigen Maximalwert nicht übersteigt, und wobei zumindest ein den Flüssigkeitsweg zumindest abschnittsweise umgehender By-Pass-Kanal vorgesehen ist, und wobei den Reglerkern des Durchflussmengenreglers zumindest ein ungeregelter und zu einer zuströmseitigen Kanalöffnung des ByPass-Kanals führender Durchströmkanal durchsetzt.The invention relates to a sanitary insert unit with an insert housing which can be mounted on or in a water outlet of a sanitary outlet fitting and in the interior of the housing a liquid path is provided which, when in use, guides water flowing through the interior of the housing, wherein in the liquid path there is a jet splitter with a plurality of splitter openings are provided, which divide the water flowing through into a plurality of individual jets, and with at least one grid or network structure following the jet splitter in the liquid path, with a flow rate regulator being provided in the insert housing in front of the jet splitter, which regulates the water flowing through during use regulates a pressure-independent maximum flow rate, and wherein the flow rate regulator has at least one elastic annular throttle body which surrounds a regulator core and delimits a control gap between itself and a control profile provided on the outer peripheral wall of the regulator core or an inner peripheral wall surrounding the throttle body, which control gap opens under the pressure of the water flowing through is changed in such a way that the flow rate of the flow rate regulator does not exceed a pressure-independent maximum value, and at least one bypass channel which at least partially bypasses the liquid path is provided, and wherein the regulator core of the flow rate regulator is at least one unregulated and to an inflow-side channel opening of the bypass -Channel leading flow channel penetrates.

Aus der DE 10 2007 001 917 A1 ist bereits eine sanitäre Einsetzeinheit mit einem Einsetzgehäuse vorbekannt, das an einem oder in einem Wasserauslauf einer sanitären Auslaufarmatur montierbar ist und in dessen Gehäuseinnenraum ein Flüssigkeitsweg vorgesehen ist, welcher bei Gebrauch durch den Gehäuseinnenraum strömendes Wasser führt. Im Flüssigkeitsweg der vorbekannten Einsetzeinheit ist ein Strahlzerleger mit einer Mehrzahl von Zerlegeröffnungen vorgesehen, die das durchströmende Wasser in eine Mehrzahl von Einzelstrahlen aufteilen. Dabei ist eine Gitter- oder Netzstruktur dem Strahlzerleger im Strömungsweg nachfolgend angeordnet. Im Einsetzgehäuse der vorbekannten Einsetzeinheit ist zuströmseitig vor dem Strahlzerleger ein Durchflussmengenregler vorgesehen, der das bei Gebrauch durchströmende Wasser auf eine druckunabhängige maximale Durchflussleistung einregelt. Dieser Durchflussmengenregler hat mindestens einen elastischen ringförmigen Drosselkörper, der einen Reglerkern umgreift und zwischen sich und einer, an der Außenumfangswandung des Reglerkerns oder einer dem Drosselkörper umgebenden Innenumfangswandung vorgesehenen Regelprofilierung einen Steuerspalt begrenzt, welcher Steuerspalt sich unter dem Druck des durchströmenden Wassers derart verändert, dass die Durchflussleistung des Durchflussmengenreglers einen druckunabhängigen Maximalwert nicht übersteigt. Dem in der vorbekannten sanitären Einsetzeinheit verwendeten Durchflussmengenregler ist zumindest ein By-Pass- und/oder Reinigungskanal zugeordnet, dessen wenigstens einer Kanal-Einlass in Strömungsrichtung vor dem Steuerspalt und dessen mindestens einer Kanal-Auslass in Strömungsrichtung nach dem Steuerspalt angeordnet ist. In diesen By-Pass- und/oder Reinigungskanal ist ein sich unter dem Druck des zuströmenden Fluids von einer Offenstellung gegen eine Rückstellkraft in eine Schließstellung bewegbares Ventil vorgesehen, das in seiner Schließstellung den By-Pass- und/oder Reinigungskanal verschließt. Da der in der vorbekannten Einsetzeinheit vorgesehene Durchflussmengenregler bei einem geringen Druck des zuströmenden Fluids durch den By-Pass-Kanal eine zusätzliche Menge des Fluids durchlässt, wird die Durchflusskurve des in der vorbekannten Einsetzeinheit verwendeten Durchflussmengenreglers im niederen Druckbereich signifikant erhöht, was zu einer enormen Komfortsteigerung für Anwendungen mit geringem Druck führt. Der gegebenenfalls durch die über den By-Pass-Kanal zugeführte Teilmenge angereicherte Gesamtstrahl tritt an der Auslaufstirnseite der vorbekannten Einsetzeinheit als homogener Gesamtstrahl aus, ohne dass die vorbekannte Einsetzeinheit dem Anwender zusätzlich die Möglichkeit bieten könnte, bei Bedarf auch bei geringen auslaufenden Wassermengen pro Zeiteinheit Gegenstände mit einem kraftvollen Reinigungsstrahl zu reinigen.From the DE 10 2007 001 917 A1 a sanitary insertion unit with an insertion housing is already known can be mounted in one or in a water outlet of a sanitary outlet fitting and in the interior of the housing a liquid path is provided which, when in use, carries water flowing through the interior of the housing. A jet splitter with a plurality of splitter openings is provided in the liquid path of the previously known insertion unit, which divide the water flowing through into a plurality of individual jets. A grid or network structure is arranged downstream of the jet splitter in the flow path. In the insertion housing of the previously known insertion unit, a flow rate regulator is provided on the inflow side in front of the jet splitter, which regulates the water flowing through during use to a pressure-independent maximum flow rate. This flow rate regulator has at least one elastic annular throttle body, which surrounds a regulator core and delimits a control gap between itself and a control profile provided on the outer circumferential wall of the regulator core or an inner circumferential wall surrounding the throttle body, which control gap changes under the pressure of the water flowing through in such a way that the Flow rate of the flow rate regulator does not exceed a pressure-independent maximum value. The flow rate regulator used in the previously known sanitary insertion unit is assigned at least one by-pass and/or cleaning channel, the at least one channel inlet of which is arranged in the flow direction in front of the control gap and the at least one channel outlet in the flow direction is arranged after the control gap. In this by-pass and/or cleaning channel there is a valve which can be moved under the pressure of the inflowing fluid from an open position against a restoring force into a closed position and which closes the by-pass and/or cleaning channel in its closed position. Since the flow rate regulator provided in the previously known insertion unit operates at a low pressure of the inflowing fluid through the by-pass channel allows an additional amount of fluid to pass through, the flow curve of the flow rate regulator used in the previously known insertion unit is significantly increased in the low pressure range, which leads to an enormous increase in comfort for applications with low pressure. The total jet, which may have been enriched by the subset supplied via the by-pass channel, emerges from the outlet end face of the previously known insertion unit as a homogeneous overall jet, without the previously known insertion unit being able to offer the user the additional possibility, if necessary, of objects even with small amounts of water escaping per unit of time clean with a powerful cleaning jet.

Man kennt bereits eine sanitäre Einsetzeinheit mit einem Einsetzgehäuse, das mit Hilfe eines Auslaufmundstücks am Wasserauslauf einer sanitären Auslaufarmatur montierbar ist (vgl. Veröffentlichung im Internet unter www.neoperl.net/de/oem/products/aerators/productlines/perlator hcflowthru.html sowie US D622,356 S ). Im Gehäuseinnenraum des Einsetzgehäuses ist ein Flüssigkeitsweg vorgesehen, welcher durch den Gehäuseinnenraum strömendes Wasser führt. Um das über den Flüssigkeitsweg geführte Wasser mit Umgebungsluft zu durchmischen und um einen homogenen, nicht-spritzenden Wasserstrahl zu formen, ist im Flüssigkeitsweg ein Strahlzerleger mit einer Mehrzahl von Zerlegeröffnungen vorgesehen, die das durchströmende Wasser in eine Mehrzahl von Einzelstrahlen aufteilen, wobei dem Strahlzerleger im Flüssigkeitsweg zumindest eine Gitter- oder Netzstruktur nachgeschaltet ist, welche die belüfteten Einzelstrahlen zusammenfasst, bevor aus dem Einsetzgehäuse ein homogener Gesamtstrahl belüfteten Wassers austritt. Um über einen davon getrennten Auslass der sanitären Einsetzeinheit bei Bedarf auch gefiltertes oder mit Kohlensäure versetztes Wasser austreten lassen zu können, ist im Einsetzgehäuse ein zentraler By-Pass-Kanal vorgesehen, der den Flüssigkeitsweg zumindest abschnittsweise umgeht und dessen abströmseitige Kanalöffnung über die Auslaufstirnseite des Einsetzgehäuses vorsteht.A sanitary insert unit with an insert housing is already known, which can be mounted on the water outlet of a sanitary outlet fitting using an outlet mouthpiece (see publication on the Internet at www.neoperl.net/de/oem/products/aerators/productlines/perlator hcflowthru.html as well US D622,356 p ). A fluid path is provided in the housing interior of the insert housing, which carries water flowing through the housing interior. In order to mix the water carried over the liquid path with ambient air and to form a homogeneous, non-splashing water jet, a jet splitter with a plurality of splitter openings is provided in the liquid path, which direct the water flowing through into divide a plurality of individual jets, with at least one grid or network structure downstream of the jet splitter in the liquid path, which combines the aerated individual jets before a homogeneous overall jet of aerated water emerges from the insertion housing. In order to be able to allow filtered or carbonated water to escape via a separate outlet of the sanitary insert unit if necessary, a central by-pass channel is provided in the insert housing, which bypasses the liquid path at least in sections and its outflow-side channel opening over the outlet end face of the insert housing presides.

In verschiedenen wasserarmen Ländern steht im Wasserversorgungsnetz nur ein sehr geringer Wasserdruck an und in anderen Ländern ist die Einhaltung eines derart geringen Volumenstromes pro Zeiteinheit vorgeschrieben, dass mit dieser geringen Wassermenge pro Zeiteinheit sich beispielsweise ein Nassrasierer oder dergleichen Gegenstand kaum wirkungsvoll reinigen lässt. Es besteht daher die Aufgabe, eine sanitäre Einsetzeinheit der eingangs erwähnten Art zu schaffen, die auch bei geringen auslaufenden Wassermengen pro Zeiteinheit dem Anwender dennoch die Möglichkeit bietet, bei Bedarf Gegenstände mit einem kraftvollen Reinigungsstrahl zu reinigen.In various water-scarce countries there is only very low water pressure in the water supply network and in other countries it is required to maintain such a low volume flow per unit of time that, for example, a wet razor or similar object can hardly be effectively cleaned with this small amount of water per unit of time. The task is therefore to create a sanitary insertion unit of the type mentioned at the beginning, which, even with small amounts of water leaking out per unit of time, still offers the user the opportunity to clean objects with a powerful cleaning jet if necessary.

Aus der DE 39 03 800 A1 ist bereits eine sanitäre Einsetzeinheit der eingangs erwähnten Art vorbekannt, die am Wasserauslauf einer sanitären Auslaufarmatur montierbar, um dort den Flüssigkeitsdurchfluss bei Bedarf mit Hilfe einer Umschaltvorrichtung verändern zu können. Die vorbekannte Einsetzeinheit hat ein Einsetzgehäuse, in dessen Gehäuseinnenraum ein Flüssigkeitsweg vorgesehen ist, der bei Gebrauch der Einsetzeinheit durch den Gehäuseinnenraum strömendes Wasser führt. Dabei ist in Figur 3 der DE 39 03 800 A1 eine Ausführung der vorbekannten Einsetzeinheit gezeigt, bei welcher ein zentraler Durchtrittskanal und ein By-Pass-Kanal wechselweise verschließbar und öffenbar sind und zu unterschiedlichen Ausströmöffnungen führen. Während der zentrale Durchtrittskanal zu einem mit einem Strahlregler versehenen Strahlaustritt führt, sind auf der Abströmseite des By-Pass-Kanals ringförmig um den Strahlaustritt herum angeordnete Brauselöcher vorgesehen, sodass zwischen einem Brausestrahl und einem belüfteten Zentralstrahl umgeschaltet werden kann. Um zwischen diesen Strahlarten umschalten zu können, ist an einem feststehenden Gehäuseteil ein ventiltellerartiges Verschlussteil vorgesehen, das mit einer im Gehäuseinneren des Einsetzgehäuses axial verstellbaren und als Ventilsitz dienenden Hülse zusammenwirkt. Dabei ist das ventiltellerartige Verschlussteil an eine Halteplatte angeformt, die mehrere, auf einer Kreisbahn angeordnete Durchström- oder Zerlegeröffnungen hat. Der auf der Abströmseite des Verschlussteils im zentralen Durchtrittskanal angeordnete Strahlregler weist seinerseits ein kegelförmiges Vorsatzsieb mit einer Vielzahl kleiner Filteröffnungen auf, die eine Gitter- oder Netzstruktur am Vorsatzsieb bilden. Zum Reinigen eines Nassrasierers oder anderer Gegenstände ist die vorbekannte Einsetzeinheit aber weniger gut geeignet, weil der im zentralen Durchtrittskanal vorgesehene Strahlbelüfter eher einen perlend-weichen Wasserstrahl bereitstellt, während der Brausestrahl aus einer Vielzahl im Querschnitt dünner Einzelstrahlen gebildet ist.From the DE 39 03 800 A1 A sanitary insert unit of the type mentioned at the beginning is already known, which can be mounted on the water outlet of a sanitary outlet fitting in order to be able to change the liquid flow there if necessary using a switching device. The previously known insertion unit has an insertion housing, in the housing interior of which a liquid path is provided, which guides water flowing through the housing interior when the insertion unit is in use. This is in Figure 3 the DE 39 03 800 A1 an embodiment of the previously known insertion unit is shown, in which a central passage channel and a by-pass channel can be alternately closed and opened and lead to different outflow openings. While the central passage channel leads to a jet outlet equipped with a jet regulator, shower holes arranged in a ring around the jet outlet are provided on the outflow side of the by-pass channel, so that it is possible to switch between a shower jet and a ventilated central jet. In order to be able to switch between these types of jets, a valve plate-like closure part is provided on a fixed housing part, which interacts with a sleeve which is axially adjustable inside the insert housing and serves as a valve seat. The valve plate-like closure part is molded onto a holding plate which has a plurality of flow-through or separation openings arranged on a circular path. The jet regulator, which is arranged on the outflow side of the closure part in the central passage channel, in turn has a cone-shaped attachment screen with a large number of small filter openings, which form a grid or net structure on the attachment screen. However, the previously known insert unit is less suitable for cleaning a wet razor or other objects because the jet aerator provided in the central passage channel tends to provide a pearly-soft jet of water, while the shower jet is formed from a large number of individual jets that are thin in cross section.

Aus der DE 10 2004 044 158 B3 kennt man bereits eine Einsetzeinheit, die ebenfalls die eingangs genannten Merkmale aufweist. Die aus DE 10 2004 044 158 B3 vorbekannte Einsetzeinheit weist einen zentralen Reinigungsstrahlkanal und eine Strömungskammer mit einer Vielzahl von Wasseraustrittsdüsen aus. Der Wassereintritt zur Strömungskammer ist mit wenigstens einem, in seiner Schließstellung vorgespannten Ventil steuerbar, das von dem bei Gebrauch anströmenden Wasser von einem vorgebbaren Staudruck des Wassers öffenbar ist. Das Ventil weist hierzu einen in Wasserströmungsrichtung axial verschiebbaren Ventilkolben mit einem Ventilteller auf und der Ventilteller hat seinerseits wenigstens eine Wassereintrittsöffnung, die zum Reinigungsstrahlkanal führt. Wird die Wasserzufuhr bei Gebrauch geöffnet, so strömt Wasser wassereintrittsseitig zunächst lediglich durch den Reinigungsstrahlkanal im Ventilkolben hindurch und tritt wasseraustrittsseitig als einziger, scharfer Reinigungsstrahl aus der vorbekannten Einsetzeinheit aus. Wird die Wasserzufuhr weiter vergrößert, so führt die Vergrößerung des Staudrucks des einströmenden Wassers an dem Ventilteller dazu, dass ab einer bestimmten Wassermenge die Öffnungskraft für das Ventil von oben größer ist als die Schließkraft der Druckfeder, sodass letztendlich der Ventilkolben mit samt dem darin angeordneten Reinigungsstrahlkanal und dem Ventilteller nach unten geschoben und das Ventil geöffnet wird.From the DE 10 2004 044 158 B3 There is already an insert unit that also has the features mentioned at the beginning. From DE 10 2004 044 158 B3 Previously known insertion unit has a central cleaning jet channel and a flow chamber with a plurality of water outlet nozzles. The water entry to the flow chamber is at least a valve that is preloaded in its closed position and can be opened by the water flowing in during use at a predeterminable dynamic pressure of the water. For this purpose, the valve has a valve piston with a valve plate that is axially displaceable in the water flow direction and the valve plate in turn has at least one water inlet opening which leads to the cleaning jet channel. If the water supply is opened during use, water initially only flows through the cleaning jet channel in the valve piston on the water inlet side and emerges from the known insertion unit as a single, sharp cleaning jet on the water outlet side. If the water supply is further increased, the increase in the dynamic pressure of the inflowing water at the valve plate leads to the fact that, from a certain amount of water, the opening force for the valve from above is greater than the closing force of the compression spring, so that ultimately the valve piston with the cleaning jet channel arranged therein and the valve plate is pushed down and the valve is opened.

Aus der DE 20 2010 007 835 U1 kennt man bereits eine, am Wasserauslauf einer sanitären Auslaufarmatur montierbare Auslaufvorrichtung, die aus einem zuströmseitigen Durchflussmengenregler, einem abströmseitigen belüfteten Strahlregler und einem zwischengeschalteten Vorsatz- oder Filtersieb besteht. Mit Hilfe des zuströmseitig vorgeschalteten Durchflussmengenreglers kann die Durchflussleistung der vorbekannten Auslaufeinheit druckunabhängig auf einen festgelegten Maximalwert des pro Zeiteinheit ausströmenden Wasservolumens festgelegt werden. Ein zentraler Reinigungsstrahl und/oder außenliegende Brause- oder Soft-Strahlen sind bei der aus DE 20 2010 007 835 U1 vorbekannten Auslaufeinheit nicht vorgesehen.From the DE 20 2010 007 835 U1 We already know an outlet device that can be mounted on the water outlet of a sanitary outlet fitting, which consists of an inflow-side flow rate regulator, a downstream-side ventilated jet regulator and an intermediate attachment or filter sieve. With the help of the flow rate regulator connected upstream on the inflow side, the flow rate of the known outlet unit can be set to a fixed maximum value of the water volume flowing out per unit of time, regardless of pressure. A central cleaning jet and/or external shower or soft jets are not available DE 20 2010 007 835 U1 previously known discontinuation unit is not provided.

In verschiedenen wasserarmen Ländern steht im Wasserversorgungsnetz nur ein sehr geringer Wasserdruck an und in anderen Ländern ist die Einhaltung eines derart geringen Volumenstromes pro Zeiteinheit vorgeschrieben, dass mit dieser geringen Wassermenge pro Zeiteinheit sich beispielsweise ein Nassrasierer oder dergleichen Gegenstand kaum wirkungsvoll reinigen lässt. Es besteht daher die Aufgabe, eine sanitäre Einsetzeinheit der eingangs erwähnten Art zu schaffen, die auch bei geringen auslaufenden Wassermengen pro Zeiteinheit dem Anwender dennoch die Möglichkeit bietet, bei Bedarf Gegenstände mit einem kraftvollen Reinigungsstrahl zu reinigen.In various water-scarce countries there is only very low water pressure in the water supply network and in other countries it is required to maintain such a low volume flow per unit of time that, for example, a wet razor or similar object can hardly be effectively cleaned with this small amount of water per unit of time. The task is therefore to create a sanitary insertion unit of the type mentioned at the beginning, which, even with small amounts of water leaking out per unit of time, still offers the user the opportunity to clean objects with a powerful cleaning jet if necessary.

Die erfindungsgemäße Lösung dieser Aufgabe besteht bei der sanitären Einsetzeinheit der eingangs erwähnten Art darin, dass der zumindest eine Bay-Pass-Kanal als Düse ausgebildet ist zur Erzeugung wenigstens eines beschleunigten Flüssigkeitsstrahles, und dass der zumindest eine By-Pass-Kanal dazu zumindest in einem Teilabschnitt einen sich verjüngenden lichten Kanalquerschnitt hat.The solution to this problem according to the invention in the sanitary insertion unit of the type mentioned at the outset is that the at least one bay pass channel is designed as a nozzle for generating at least one accelerated liquid jet, and that the at least one bypass channel is at least in one Section has a tapering clear channel cross section.

Eine vorteilhafte Ausführungsform der Erfindung sieht vor, dass der zumindest eine By-Pass-Kanal sich wenigstens in zumindest einem konischen Teilabschnitt in Richtung zu seiner abströmseitigen Kanalöffnung hin verfüngt oder verengt, und dass der By-Pass-Kanal den Strahlzerleger durchsetzt.An advantageous embodiment of the invention provides that the at least one by-pass channel widens or narrows at least in at least one conical section towards its downstream channel opening, and that the by-pass channel passes through the jet splitter.

Eine weitere vorteilhafte Ausführungsform der Erfindung sieht vor, dass der Durchflussmengenregler zuströmseitig vor einer zuströmseitigen Kanalöffnung des By-Pass-Kanals angeordnet ist.A further advantageous embodiment of the invention provides that the flow rate regulator is arranged on the inflow side in front of an inflow-side channel opening of the by-pass channel.

Die erfindungsgemäße Einsetzeinheit weist ein Einsetzgehäuse auf, das an einem oder in einem Wasserauslauf einer sanitären Auslaufarmatur montierbar ist. Dazu kann am Gehäuseaußenumfang des Einsetzgehäuses ein Außengewinde vorgesehen sein, das mit einem Innengewinde im Wasserauslauf verschraubbar ist. Möglich ist aber auch, dass das Einsetzgehäuse in ein hülsenförmiges Auslaufmundstück einsetzbar ist, das mit Hilfe eines Gewindes an einem Gegengewinde am Wasserauslauf verschraubt werden kann. Im Gehäuseinnenraum des Einsetzgehäuses ist ein Flüssigkeitsweg vorgesehen, durch den durchströmendes Wasser geführt werden kann. In diesem Flüssigkeitsweg ist ein Strahlzerleger vorgesehen, der eine Mehrzahl von Zerlegeröffnungen hat, die das durchströmende Wasser in eine Mehrzahl von Einzelstrahlen aufteilen. Dem Strahlzerleger ist im Flüssigkeitsweg zumindest eine Gitter- oder Netzstruktur nachgeschaltet, die als Strömungsgleichrichter oder als Homogenisiereinrichtung wirkt und die vom Strahlzerleger kommenden Einzelstrahlen gegebenenfalls nach dem Anreichern und Durchmischen mit Umgebungsluft zu einem aus dem Einsetzgehäuse austretenden weichen Gesamtstrahl formen soll. Die erfindungsgemäße Einsetzeinheit hat zumindest einen den Flüssigkeitsweg wenigstens abschnittsweise umgehenden By-Pass-Kanal, der zur Erzeugung wenigstens eines beschleunigten Flüssigkeits- oder Reinigungsstrahles dient. In dem aus der sanitären Einsetzeinheit ausströmenden Gesamtstrahl wird somit mit Hilfe des zumindest einen, als Düse ausgebildeten By-Pass-Kanals ein im Vergleich zum Gesamtstrahl beschleunigter Flüssigkeits- oder Reinigungsstrahl erzeugt, der sich im Vergleich zum übrigen Gesamtstrahl durch eine erhöhte Reinigungskraft auszeichnet.The insertion unit according to the invention has an insertion housing which can be mounted on or in a water outlet of a sanitary outlet fitting. For this purpose, an external thread can be provided on the outer circumference of the insert housing, which can be screwed to an internal thread in the water outlet. However, it is also possible for the insertion housing to be inserted into a sleeve-shaped outlet mouthpiece, which can be screwed to a counter-thread on the water outlet using a thread. A fluid path is provided in the interior of the insert housing through which water flowing through can be guided. A jet splitter is provided in this liquid path and has a plurality of splitter openings which divide the water flowing through into a plurality of individual jets. The jet splitter is followed by at least one grid or network structure in the liquid path, which acts as a flow straightener or as a homogenizing device and is intended to form the individual jets coming from the jet splitter, if necessary after enrichment and mixing with ambient air, into a soft overall jet emerging from the insert housing. The insertion unit according to the invention has at least one bypass channel which at least partially bypasses the liquid path and which is used to generate at least one accelerated liquid flow. or cleaning jet. In the overall jet flowing out of the sanitary insertion unit, a liquid or cleaning jet that is accelerated compared to the overall jet is thus generated with the aid of the at least one by-pass channel designed as a nozzle, which is characterized by increased cleaning power compared to the rest of the overall jet.

Um den Wasserverbrauch merklich zu reduzieren und um die Durchflussleistung auf einen geringen Maximalwert festlegen zu können, sieht der im Patentanspruch 1 geschützte Erfindungsgegenstand vor, dass im Einsetzgehäuse zuströmseitig vor dem Strahlzerleger ein Durchflussmengenregler vorgesehen ist, der das durchströmende Wasser auf eine druckunabhängige maximale Durchflussleistung einregelt.In order to noticeably reduce water consumption and to be able to set the flow rate to a low maximum value, the subject matter of the invention protected in claim 1 provides that a flow rate regulator is provided in the insert housing on the inflow side in front of the jet splitter, which regulates the water flowing through to a pressure-independent maximum flow rate.

Um die Einsetzeinheit kostengünstig herstellen und platzsparend in dem Einsetzgehäuse unterbringen zu können, ist des Weiteren vorgesehen, dass der Durchflussmengenregler mindestens einen elastischen ringförmigen Drosselkörper hat, der einen Reglerkern umgreift und zwischen sich und einer, an der Außenumfangswandung des Reglerkerns oder einer den Drosselkörper umgebenden Innenumfangswandung vorgesehenen Regelprofilierung einen Steuerspalt begrenzt, welcher Steuerspalt sich unter dem Druck des durchströmenden Wassers derart verändert, dass die Durchflussleistung des Durchflussmengenreglers einen druckunabhängigen Maximalwert nicht übersteigt.In order to be able to produce the insert unit cost-effectively and accommodate it in the insert housing in a space-saving manner, it is further provided that the flow rate regulator has at least one elastic annular throttle body which surrounds a regulator core and between itself and an inner circumferential wall on the outer peripheral wall of the regulator core or an inner circumferential wall surrounding the throttle body The control profiling provided limits a control gap, which control gap changes under the pressure of the water flowing through in such a way that the flow rate of the flow rate controller does not exceed a pressure-independent maximum value.

Um den Reinigungsstrahl ohne Rücksicht auf die Durchflussleistung eines gegebenenfalls vorgeschalteten Durchflussmengenreglers ausgestalten zu können, ist im Patentanspruch 1 des Weiteren vorgesehen, dass zumindest ein ungeregelter und zu einer zuströmseitigen Kanalöffnung des By-Pass-Kanals führender Durchströmkanal den Reglerkern des Durchflussmengenreglers durchsetzt.In order to be able to design the cleaning jet without taking into account the flow rate of a possibly upstream flow rate regulator, it is further provided in claim 1 that at least one unregulated channel opening leading to an inflow-side channel opening of the by-pass channel Flow channel passes through the controller core of the flow rate controller.

Vorteilhaft kann es sein, wenn der By-Pass-Kanal sich wenigstens in zumindest einem konischen Teilabschnitt in Richtung zu seiner abströmseitigen Kanalöffnung hin verjüngt oder verengt, und wenn der By-Pass-Kanal den Strahlzerleger durchsetzt. Da der zumindest eine By-Pass-Kanal gemäß dem in geltenden Patentanspruch 2 beschriebenen Erfindungsvorschlag sich wenigstens in zumindest einem konischen Teilabschnitt in Richtung zu seiner abströmseitigen Kanalöffnung hin verjüngt oder verengt, kann im By-Pass-Kanal auch mittels der vergleichsweise geringen Durchflussleistung ein effektiver Flüssigkeits- oder Reinigungsstrahl geformt werden. Da die gemäß diesem Erfindungsvorschlag ausgebildete Einsetzeinheit einen By-Pass-Kanal hat, der den Strahlzerleger durchsetzt, kann ein Flüssigkeits- oder Reinigungsstrahl ohne Rücksicht auf den Strahlzerleger und gegebenenfalls den vorgeschalteten Durchflussmengenregler geformt werden.It can be advantageous if the by-pass channel tapers or narrows at least in at least one conical section towards its downstream channel opening, and if the by-pass channel passes through the jet splitter. Since the at least one by-pass channel according to the proposed invention described in applicable patent claim 2 tapers or narrows at least in at least one conical section towards its downstream channel opening, an effective flow rate can also be achieved in the by-pass channel by means of the comparatively low flow rate Liquid or cleaning jet can be formed. Since the insertion unit designed according to this proposed invention has a by-pass channel that passes through the jet splitter, a liquid or cleaning jet can be formed without taking the jet splitter and, if necessary, the upstream flow rate regulator into account.

Eine konstruktiv besonders einfache und mit geringem Aufwand herstellbare besondere Ausführungsform der Erfindung sieht vor, dass der By-Pass-Kanal eine zuströmseitige Kanalöffnung hat, die im Flüssigkeitsweg unterhalb zumindest einer der Zerlegeröffnungen und insbesondere unterhalb von zumindest zwei der Zerlegeröffnungen angeordnet ist. Bei dieser Ausführungsform wird ein Flüssigkeits- oder Reinigungsstrahl aus zumindest einem, im Strahlzerleger gebildeten Einzelstrahl erzeugt. Dabei sieht eine besonders vorteilhafte Ausführungsform, die sich durch einen besonders effektiven Reinigungsstrahl auszeichnet, vor, dass der geringste lichte Kanalquerschnitt des zumindest einen By-Pass-Kanals eine lichte Querschnittsfläche umfasst, die kleiner ist, als die Quer-schnittsfläche der in die zuströmseitige Kanalöffnung mün-denden Zerlegeröffnung oder als die Summe der lichten Querschnittsflächen der in die zuströmseitige Kanalöffnung mündenden Zerlegeröffnungen.A special embodiment of the invention that is structurally particularly simple and can be produced with little effort provides that the by-pass channel has an inflow-side channel opening which is arranged in the liquid path below at least one of the separation openings and in particular below at least two of the separation openings. In this embodiment, a liquid or cleaning jet is generated from at least one individual jet formed in the jet splitter. A particularly advantageous embodiment, which is characterized by a particularly effective cleaning jet, provides that the smallest clear channel cross section of the at least one by-pass channel comprises a clear cross-sectional area that is smaller than the cross-sectional area of the channel opening in the inflow side opening into the cutting opening or as the sum of the clear ones Cross-sectional areas of the disassembly openings opening into the inflow-side channel opening.

Möglich ist es, dass der Strahlzerleger als Lochplatte ausgebildet ist. Demgegenüber sieht eine andere Ausführungsform, die insbesondere bei geringen Wasserdrücken Vorteile bietet, vor, dass der Strahlzerleger als Diffusor ausgebildet ist, der eine Prallfläche hat, welche das anströmende Wasser in Richtung zu Zerlegeröffnungen umlenkt, welche in einer Außenumfangswandung des Diffusors vorgesehen sind. Bei dieser Ausführungsform wird das ausströmende Wasser zunächst an der Prallfläche des zumindest in diesem Teilbereich beispielsweise topfförmig ausgebildeten Diffusors abgebremst und umgelenkt, bevor das derart insbesondere nach außen umgelenkte Wasser in den Zerlegeröffnungen in Einzelstrahlen aufgeteilt wird, welche Zerlegeröffnungen in der Außenumfangswandung des Diffusors vorgesehen sind.It is possible that the beam splitter is designed as a perforated plate. In contrast, another embodiment, which offers advantages particularly at low water pressures, provides that the jet splitter is designed as a diffuser which has a baffle surface which deflects the incoming water towards splitter openings which are provided in an outer peripheral wall of the diffuser. In this embodiment, the outflowing water is first slowed down and deflected on the baffle surface of the diffuser, which is pot-shaped, for example, at least in this partial area, before the water deflected in this way, in particular outwards, is divided into individual jets in the separation openings, which separation openings are provided in the outer peripheral wall of the diffuser.

Um im Bereich des Strahlzerlegers einen Unterdruck zu erzeugen, mittels dem Umgebungsluft in den Gehäuseinnenraum des Einsetzgehäuses eingesaugt werden kann, sieht eine bevorzugte Ausführungsform gemäß der Erfindung vor, dass die Außenumfangswandung des Diffusors von einem Diffusorring umgeben ist, und dass zwischen der Außenumfangswandung und dem Diffusorring ein Ringspalt vorgesehen ist, der sich in Durchströmrichtung des Wassers zumindest abschnittsweise verjüngt.In order to generate a negative pressure in the area of the jet splitter, by means of which ambient air can be sucked into the housing interior of the insert housing, a preferred embodiment according to the invention provides that the outer peripheral wall of the diffuser is surrounded by a diffuser ring, and that between the outer peripheral wall and the diffuser ring an annular gap is provided, which tapers at least in sections in the direction of flow of the water.

Störungen durch im Wasserstrom mitgeführte Schmutzpartikel lassen sich vermeiden, und eine störungsfreie Funktion der Einsetzeinheit und ihrer Bestandteile lässt sich erreichen, wenn die Einsetzeinheit ein Filtersieb hat, welches Filtersieb in Zuströmrichtung vor dem Strahlzerleger und gegebenenfalls vor dem dazwischengeschalteten Durchflussmengenregler angeordnet ist.Disturbances caused by dirt particles carried in the water flow can be avoided, and trouble-free functioning of the insertion unit and its components can be achieved if the insertion unit has a filter sieve, which filter sieve is arranged in the inflow direction in front of the jet splitter and, if necessary, in front of the intermediate flow rate regulator.

Wenn der By-Pass-Kanal den Strahlzerleger und gegebenenfalls auch einen vorgeschalteten Durchflussmengenregler durchsetzt, kann es zweckmäßig sein, wenn die zuströmseitige Kanalöffnung des By-Pass-Kanals in Zuströmrichtung unmittelbar unterhalb des Filtersiebs angeordnet ist. Dabei wird auch vermieden, dass die im Wasser mitgeführten Schmutzpartikel die im By-Pass-Kanal vorgesehene Düsenöffnung verstopfen oder auch nur verengen können.If the by-pass channel passes through the jet splitter and possibly also an upstream flow rate regulator, it may be expedient if the inflow-side channel opening of the by-pass channel is arranged directly below the filter sieve in the inflow direction. This also prevents the dirt particles carried in the water from clogging or even narrowing the nozzle opening provided in the by-pass channel.

Eine bevorzugte Ausführungsform der Erfindung sieht vor, dass das Filtersieb sich in Durchströmrichtung vorzugsweise kegelförmig erweitert. Diese Ausführungsform hat den Vorteil, dass die beispielsweise aus dem zuströmseitigen Vorsatz- oder Filtersieb, einem abströmseitigen Strahlregler sowie erforderlichenfalls einem dazwischen geschalteten Durchflussmengenregler oder Durchflussbegrenzer gebildete Einsetzeinheit zumindest an ihrem äußeren Umfangsrand mit einer vergleichsweise geringen Längserstreckung ausgebildet werden kann, obwohl die Sieboberfläche des in den zuströmseitigen lichten Querschnitt der Auslaufarmatur vorstehenden Vorsatz- oder Filtersiebes vergleichsweise groß ausgebildet wurde.A preferred embodiment of the invention provides that the filter screen expands, preferably conically, in the direction of flow. This embodiment has the advantage that it consists, for example, of the inflow-side attachment or filter screen, an outflow-side jet regulator and, if necessary, a flow rate regulator connected in between or flow restrictor formed insertion unit can be designed at least on its outer peripheral edge with a comparatively small longitudinal extent, although the sieve surface of the attachment or filter sieve protruding into the inflow-side clear cross section of the outlet fitting was made comparatively large.

Eine andere Ausführungsform der Erfindung sieht vor, dass das Filtersieb eine trichterförmige Form hat, und dass die Trichterform des Filtersiebes sich in Richtung zu einer zuströmseitigen Kanalöffnung des zumindest einen By-Pass-Kanals hin verjüngt.Another embodiment of the invention provides that the filter sieve has a funnel-shaped shape, and that the funnel shape of the filter sieve tapers towards an inflow-side channel opening of the at least one by-pass channel.

Damit in der erfindungsgemäßen Einsetzeinheit ein außenliegender weicher und nicht-spritzender Gesamtstrahl geformt werden kann, der einen in seinem Zentrum angeordneten und dort leicht auffindbaren harten Reinigungsstrahl umschließt, ist es vorteilhaft, wenn der By-Pass-Kanal etwa koaxial zur Längsmittelachse des Einsetzgehäuses angeordnet ist.So that an external soft and non-splashing overall jet can be formed in the insertion unit according to the invention, which encloses a hard cleaning jet that is arranged in its center and can be easily found there, it is advantageous if the by-pass channel is arranged approximately coaxially to the longitudinal central axis of the insertion housing .

Eine Weiterbildung der Erfindung sieht vor, dass der By-Pass-Kanal sich zur Erzeugung eines Wasserstrahles in Richtung zu einer vorzugsweise zentralen Düsenöffnung hin verjüngt, welche Düsenöffnung den geringsten lichten Querschnitt des By-Pass-Kanals aufweist.A further development of the invention provides that the by-pass channel tapers towards a preferably central nozzle opening in order to generate a water jet, which nozzle opening has the smallest clear cross section of the by-pass channel.

Vorteilhaft kann es sein, wenn der Ringspalt oder die Düsenöffnung eine abströmseitige Kanalöffnung des By-Pass-Kanals bilden. Bei dieser Ausführungsform kann ein zu reinigender Gegenstand in geringem Abstand unterhalb der Kanalöffnung des By-Pass-Kanals angeordnet werden, so dass dieser Reinigungsstrahl praktisch ungehindert auf den zu reinigenden Gegenstand auftrifft und dort seine Reinigungskraft voll entfalten kann.It can be advantageous if the annular gap or the nozzle opening forms a downstream channel opening of the by-pass channel. In this embodiment, an object to be cleaned can be arranged at a short distance below the channel opening of the by-pass channel, so that this cleaning jet hits the object to be cleaned practically unhindered and can fully develop its cleaning power there.

Dabei sieht eine bevorzugte Ausführungsform der Erfindung vor, dass die abströmseitige Kanalöffnung des By-Pass-Kanals etwa in einer abströmseitigen Stirnebene des Einsetzgehäuses angeordnet ist.A preferred embodiment of the invention provides that the downstream channel opening of the by-pass channel is arranged approximately in a downstream end plane of the insert housing.

Damit das durch den Flüssigkeitsweg im Einsetzgehäuse durchströmende Wasser auslaufseitig wieder zu einem weichen und nicht-spritzenden Gesamtstrahl geformt werden kann, ist es zweckmäßig, wenn an einer abströmseitigen Stirnebene des Einsetzgehäuses eine Gitterstruktur vorgesehen ist mit etwa wabenzellenförmigen Gitteröffnungen. Dabei können die die Gitterstruktur bildenden Stege eine in Durchströmrichtung orientierte Längserstreckung haben, die im Vergleich zum maximalen lichten Öffnungsquerschnitt der Gitteröffnungen gleich oder größer ist. Durch die wabenzellenförmige Ausgestaltung der Gitteröffnungen wird dem durchströmenden Wasser nur ein geringer Widerstand entgegengesetzt und dennoch lässt sich besonders gut ein nicht-spritzender Gesamtstrahl formen.So that the water flowing through the liquid path in the insert housing can be formed into a soft and non-splashing overall jet on the outlet side, it is expedient if a grid structure with approximately honeycomb cell shape is provided on an outflow-side end face of the insert housing Grid openings. The webs forming the grid structure can have a longitudinal extent oriented in the flow direction, which is the same or larger than the maximum clear opening cross section of the grid openings. Due to the honeycomb cell-shaped design of the grid openings, there is only a small resistance to the water flowing through and yet a non-splashing overall jet can be formed particularly well.

Um aus dem im Flüssigkeitsweg geführten Wasser einen nicht-spritzenden Gesamtstrahl formen zu können und um gegebenenfalls auch das Durchmischen dieses Wasserstromes mit Umgebungsluft zu begünstigen, ist es vorteilhaft, wenn in das Einsetzgehäuse zumindest ein vorzugsweise ringförmiges Einsetzteil eingesetzt ist, das eine im Flüssigkeitsweg zwischengeschaltete Gitter- oder Netzstruktur aufweist.In order to be able to form a non-splashing overall jet from the water guided in the liquid path and, if necessary, to promote the mixing of this water stream with ambient air, it is advantageous if at least one preferably annular insert part is inserted into the insert housing, which has a grid interposed in the liquid path - or network structure.

Dabei sieht eine bevorzugte Ausführungsform der Erfindung vor, dass in das Einsetzgehäuse mehrere Einsetzteile eingesetzt sind, die im Flüssigkeitsweg unterhalb der Strahlzerleger angeordnet sind.A preferred embodiment of the invention provides that several insert parts are inserted into the insert housing, which are arranged in the liquid path below the jet splitter.

Um einen perlend-weichen Gesamtstrahl zu erzeugen, ist es vorteilhaft, wenn das sanitäre Einsetzteil zum Durchmischen des durch den Flüssigkeitsweg durchströmenden Wassers mit Umgebungsluft zumindest einen Belüftungskanal hat, der im Flüssigkeitsweg vorzugsweise unterhalb dem Strahlzerleger mündet.In order to produce a pearly-soft overall jet, it is advantageous if the sanitary insert part for mixing the water flowing through the liquid path with ambient air has at least one ventilation channel, which opens in the liquid path, preferably below the jet splitter.

Dazu sieht eine bevorzugte Ausführungsform der Erfindung vor, dass der zumindest eine Belüftungskanal als eine in einer Gehäuseumfangswandung des Einsetzgehäuses vorgesehene Gehäuseöffnung ausgebildet ist.For this purpose, a preferred embodiment of the invention provides that the at least one ventilation channel is designed as a housing opening provided in a housing peripheral wall of the insert housing.

Weiterbildungen der Erfindung ergeben sich aus den Zeichnungen in Verbindung mit der Figurenbeschreibung sowie den Ansprüchen. Nachstehend wird die Erfindung anhand bevorzugter Ausführungsbeispiele noch näher beschrieben.Further developments of the invention result from the drawings in connection with the description of the figures and the claims. The invention is described in more detail below using preferred exemplary embodiments.

Es zeigt:It shows:

Fig. 1Fig. 1
eine sanitäre Einsetzeinheit, die mittels eines hülsenförmigen Auslaufmundstücks an dem Wasserauslauf einer sanitären Auslaufarmatur montierbar ist, in einer auseinandergezogenen Perspektivdarstellung dieser Bestandteile, wobei die Einsetzeinheit das durchströmende Wasser zu einem weichen, nichtspritzenden Gesamtstrahl formt, der in seinem Strahlzentrum einen harten Reinigungsstrahl umschließt,a sanitary insertion unit, which can be mounted on the water outlet of a sanitary outlet fitting by means of a sleeve-shaped outlet mouthpiece, in an exploded perspective view of these components, the insertion unit forming the water flowing through into a soft, non-splashing overall jet, which encloses a hard cleaning jet in its jet center,
Fig. 2Fig. 2
die Einsetzeinheit aus Figur 1 in einer auseinandergezogenen Perspektivdarstellung mit Blickrichtung auf die Auslaufstirnseite dieser Einsetzeinheit,the insertion unit Figure 1 in an exploded perspective view looking towards the outlet end face of this insertion unit,
Fig. 3Fig. 3
die mittels dem Auslaufmundstück am Wasserauslauf der Auslaufarmatur montierte Einsetzeinheit aus den Figuren 1 und 2 in einem Längsschnitt,the insertion unit mounted on the water outlet of the outlet fitting using the outlet mouthpiece Figures 1 and 2 in a longitudinal section,
Fig. 4Fig. 4
die mittels dem Auslaufmundstück am Wasserauslauf der Auslaufarmatur montierte Einsetzeinheit aus den Figuren 1 bis 3 in einer seitlichen Perspektivansicht, undthe insertion unit mounted on the water outlet of the outlet fitting using the outlet mouthpiece Figures 1 to 3 in a side perspective view, and
Fig. 5Fig. 5
die mittels dem Auslaufmundstück am Wasserauslauf der Auslaufarmatur montierte Einsetzeinheit aus den Figuren 1 bis 4 in einer Draufsicht auf die Auslaufstirnseite.the insertion unit mounted on the water outlet of the outlet fitting using the outlet mouthpiece Figures 1 to 4 in a top view of the outlet face.

In den Figuren 1 bis 5 ist eine sanitäre Einsetzeinheit 1 dargestellt. Die Einsetzeinheit 1 weist ein Einsetzgehäuse 2 auf, das an einem Wasserauslauf 3 einer ansonsten hier nicht weiter dargestellten sanitären Auslaufarmatur montierbar ist. Das Einsetzgehäuse 2 der Einsetzeinheit 1 ist dazu von der Zuströmseite aus in ein hülsenförmiges Auslaufmundstück 4 einsetzbar, bis ein am Außenumfang des Einsetzgehäuses 2 vorgesehener Ringflansch 5 an einem als Auflager 7 dienenden Ringabsatz am Innenumfang des Auslaufmundstücks 4 aufliegt. Das Auslaufmundstück 4 ist mit einem Gewinde 8 an einem Gegengewinde 27 am Wasserauslauf 3 verschraubbar, wobei die Trennzone mittels einem Dichtring 29 abgedichtet sein kann.In the Figures 1 to 5 a sanitary insert unit 1 is shown. The insertion unit 1 has an insertion housing 2, which can be mounted on a water outlet 3 of a sanitary outlet fitting not otherwise shown here. For this purpose, the insertion housing 2 of the insertion unit 1 can be inserted from the inflow side into a sleeve-shaped outlet mouthpiece 4 until an annular flange 5 provided on the outer circumference of the insertion housing 2 rests on an annular shoulder serving as a support 7 on the inner circumference of the outlet mouthpiece 4. The outlet mouthpiece 4 can be screwed with a thread 8 to a mating thread 27 on the water outlet 3, the separation zone being able to be sealed by means of a sealing ring 29.

Im Gehäuseinnenraum des Einsetzgehäuses 2 der Einsetzeinheit 1 ist ein Flüssigkeitsweg vorgesehen, durch den durchströmendes Wasser geführt werden kann. In diesem Flüssigkeitsweg ist ein Strahlzerleger 9 vorgesehen, der eine Mehrzahl von Zerlegeröffnungen 11 hat, die das durchströmende Wasser in eine Mehrzahl von Einzelstrahlen aufteilen. Dem Strahlzerleger 9 der Einsetzeinheiten 1 ist im Flüssigkeitsweg zumindest eine Gitter- oder Netzstruktur 14, 15 nachgeschaltet, die als Strömungsgleichrichter oder als Homogenisiereinrichtung wirkt und die vom Strahlzerleger kommenden Einzelstrahlen gegebenenfalls nach deren Anreicherung und Durchmischung mit Umgebungsluft zu einem aus dem Einsetzgehäuse 2 austretenden weichen, nicht-spritzenden Gesamtstrahl formen soll. Die Einsetzeinheiten 1hat zumindest einen den Flüssigkeitsweg zumindest abschnittsweise umgehenden By-Pass-Kanal 16, der zur Erzeugung wenigstens eines beschleunigten Flüssigkeits- oder Reinigungsstrahles bestimmt ist. Dieser By-Pass-Kanal 16 hat dazu zumindest in einem Teilabschnitt einen sich verjüngenden lichten Kanalquerschnitt. In dem aus der Einsetzeinheit 1 ausströmenden Gesamtstrahl wird somit mit Hilfe des zumindest einen, als Düse ausgebildeten By-Pass-Kanals 16 ein im Vergleich zum Gesamtstrahl beschleunigter Reinigungsstrahl erzeugt, der sich durch eine hohe Reinigungskraft auszeichnet.In the housing interior of the insertion housing 2 of the insertion unit 1, a liquid path is provided through which water flowing through can be guided. A jet splitter 9 is provided in this liquid path and has a plurality of splitter openings 11 which divide the water flowing through into a plurality of individual jets. The jet splitter 9 of the insertion units 1 is followed by at least one grid or network structure 14, 15 in the liquid path, which acts as a flow straightener or as a homogenizing device and the individual jets coming from the jet splitter, if necessary after they have been enriched and mixed with ambient air, into a soft one emerging from the insertion housing 2, should form a non-splashing overall jet. The insertion unit 1 has at least one bypass channel 16, which at least partially bypasses the liquid path and is used to generate at least one accelerated liquid or cleaning jet is intended. For this purpose, this by-pass channel 16 has a tapering clear channel cross section, at least in a partial section. In the overall jet flowing out of the insertion unit 1, a cleaning jet that is accelerated compared to the overall jet and is characterized by a high cleaning power is thus generated with the aid of the at least one by-pass channel 16 designed as a nozzle.

Um in dem aus dem Flüssigkeitsweg der Einsetzeinheit 1 ausströmenden Gesamtstrahl einen harten zentralen Reinigungsstrahl erzeugen zu können, der sich durch seine definierte Position im Strahlquerschnitt leicht auffinden lässt, ist der By-Pass-Kanal 16 etwa koaxial zur Längsmittelachse des Einsetzgehäuses 2 der Einsetzeinheit 1 angeordnet. Die an der abströmseitigen Stirnfläche des Einsetzgehäuses 2 vorgesehene Gitterstruktur 14, die hier einstückig an das Einsetzgehäuse 2 angeformt ist, weist wabenzellenförmige Gitteröffnungen 17 auf, die zwar aufgrund der Längserstreckung der diese Gitterstruktur 14 bildenden Stege das durchströmende Wasser gut führen und formen können, jedoch diesem Wasserstrom nur einen geringen Widerstand entgegensetzen. In das Einsetzgehäuse 2 der Einsetzeinheit 1 sind ringförmige Einsetzteile 28 eingesetzt, die eine im Flüssigkeitsweg zwischengeschaltete Gitter- oder Netzstruktur 15 aufweisen. Die Einsetzteile 28 der hier dargestellten Einsetzeinheit 1 weisen dazu eine spinnennetzartige Struktur aus konzentrischen Stegen auf, die sich an Kreuzungsknoten mit radialen Stegen kreuzen. Die in den Einsetzteilen 28 ausgebildeten Gitter- oder Netzstrukturen 15 begünstigen eine gute Durchmischung des durchströmenden Wassers mit der in den Gehäuseinnenraum des Einsetzgehäuses 2 angesaugten Umgebungsluft.In order to be able to generate a hard central cleaning jet in the overall jet flowing out of the liquid path of the insertion unit 1, which can be easily located due to its defined position in the jet cross section, the by-pass channel 16 is arranged approximately coaxially to the longitudinal center axis of the insertion housing 2 of the insertion unit 1 . The grid structure 14 provided on the downstream end face of the insert housing 2, which is here integrally formed onto the insert housing 2, has honeycomb cell-shaped grid openings 17, which can guide and shape the water flowing through well due to the longitudinal extent of the webs forming this grid structure 14, but this Offer only a small resistance to the water flow. Annular insert parts 28 are inserted into the insert housing 2 of the insert unit 1 and have a grid or net structure 15 interposed in the fluid path. The insert parts 28 of the insert unit 1 shown here have a spider web-like structure made of concentric webs that intersect with radial webs at intersection nodes. The grid or net structures 15 formed in the insert parts 28 promote good mixing of the water flowing through with the ambient air sucked into the housing interior of the insert housing 2.

Der im Flüssigkeitsweg der Einsetzeinheit 1 geführte Wasserstrom wird in den Zerlegeröffnungen 11 der Strahlzerleger 9 in Einzelstrahlen aufgeteilt, wobei diese Einzelstrahlen eine Geschwindigkeitserhöhung erfahren, die auf der Abströmseite des Strahlzerlegers 9 einen Unterdruck erzeugt. Mit Hilfe dieses Unterdrucks wird Umgebungsluft in den Flüssigkeitsweg angesaugt. Die sanitären Einsetzeinheit 1 weist dazu zumindest einen Belüftungskanal auf, der im Flüssigkeitsweg unterhalb dem Strahlzerleger 9 mündet. Dieser zumindest eine Belüftungskanal ist hier als eine in der Gehäuseumfangswandung des Einsetzgehäuses 2 vorgesehene Gehäuseöffnung 18 ausgebildet.The water flow guided in the liquid path of the insertion unit 1 is divided into individual jets in the separation openings 11 of the jet splitter 9, these individual jets experiencing an increase in speed, which generates a negative pressure on the outflow side of the jet splitter 9. With the help of this negative pressure, ambient air is sucked into the liquid path. For this purpose, the sanitary insertion unit 1 has at least one ventilation channel which opens into the liquid path below the jet splitter 9. This at least one ventilation channel is designed here as a housing opening 18 provided in the housing peripheral wall of the insert housing 2.

Um die pro Zeiteinheit durchströmende Wassermenge auf einen festgelegten Maximalwert zu begrenzen, ist im Einsetzgehäuse 2 zuströmseitig vor dem Strahlzerleger 9 ein Durchflussmengenregler 19 vorgesehen, der das durchströmende Wasser auf eine druckunabhängige maximale Durchflussleistung einregelt. Der in der Einsetzeinheit 1 verwendete Durchflussmengenregler 19 weist einen elastischen ringförmigen Drosselkörper 20 aus elastischem Material auf, der einen Reglerkern 21 umgreift und zwischen sich und einer, an der Außenumfangswandung des Reglerkerns oder einer den Drosselkörper 20 umgebenden Innenumfangswandung vorgesehenen Regelprofilierung einen Steuerspalt begrenzt, welcher Steuerspalt sich unter dem Druck des durchströmenden Wassers derart verändert, dass die Durchflussleistung des Durchflussmengenreglers 20 einen druckunabhängigen Maximalwert nicht übersteigt.In order to limit the amount of water flowing through per unit of time to a fixed maximum value, a flow rate regulator 19 is provided in the insert housing 2 on the inflow side in front of the jet splitter 9, which regulates the water flowing through to a pressure-independent maximum flow rate. The flow rate regulator 19 used in the insertion unit 1 has an elastic annular throttle body 20 made of elastic material, which surrounds a regulator core 21 and delimits a control gap between itself and a control profile provided on the outer peripheral wall of the regulator core or an inner circumferential wall surrounding the throttle body 20, which control gap changes under the pressure of the water flowing through in such a way that the flow capacity of the flow rate regulator 20 does not exceed a pressure-independent maximum value.

Bei der in den Figuren 1 bis 5 gezeigten Einsetzeinheit 1 durchsetzt der By-Pass-Kanal 16 den Strahlzerleger 9.At the in the Figures 1 to 5 Insertion unit 1 shown, the by-pass channel 16 passes through the beam splitter 9.

Während der Strahlzerleger 9 der in den Figuren 1 bis 5 gezeigten Einsetzeinheit 1 als einfache Lochplatte ausgebildet ist, kann der Strahlzerleger einer hier nicht gezeigten Einsetzeinheit auch als Diffusor ausgestaltet sein, der eine Prallfläche hat, welche das anströmende Wasser in Richtung zu den Zerlegeröffnungen umlenkt, welche in einer Außenumfangswandung des als Diffusor ausgebildeten Strahlzerlegers vorgesehen sind. Dabei kann die Außenumfangswandung des als Diffusor ausgebildeten Strahlzerlegers von einer Ringfläche umgeben ist, wobei zwischen der Außenumfangswandung und dieser Ringfläche ein Ringspalt vorgesehen ist, der sich in Durchströmrichtung des Wassers zumindest abschnittsweise verjüngt. Entsprechend der Bernoullischen Gleichung bildet sich auf der Abströmseite des Ringspalts im Gehäuseinnenraum ein Unterdruck, mit dessen Hilfe Umgebungsluft angesaugt werden kann.While the beam splitter 9 is in the Figures 1 to 5 Insertion unit 1 shown is designed as a simple perforated plate, the jet splitter of an insertion unit not shown here can also be designed as a diffuser, which has a baffle surface which deflects the incoming water towards the splitter openings, which are provided in an outer peripheral wall of the jet splitter designed as a diffuser . The outer peripheral wall of the jet splitter designed as a diffuser can be surrounded by an annular surface, between the outer peripheral wall and this annular surface is provided with an annular gap which tapers at least in sections in the direction of flow of the water. According to Bernoulli's equation, a negative pressure is formed on the outflow side of the annular gap in the housing interior, with the help of which ambient air can be sucked in.

Damit im Leitungsnetz mitgerissene Schmutzpartikel nicht die Funktion der Einsetzeinheit 1 und ihrer Bestandteile beeinträchtigen können, weist die Einsetzeinheit 1 ein Filtersieb 25 auf, das in Zuströmrichtung vor dem Strahlzerleger 9 und gegebenenfalls auch vor dem dazwischengeschalteten Durchflussmengenregler 19 angeordnet ist. Das Filtersieb 25 der Einsetzeinheit 1 ist trichterförmig ausgebildet, wobei die Trichterform dieses Filtersiebes 25 sich in Richtung zu einer zuströmseitigen Kanalöffnung des zumindest einen, in der Einsetzeinheit 1 vorgesehenen By-Pass-Kanals 16 hin verjüngt.So that dirt particles entrained in the pipe network cannot impair the function of the insertion unit 1 and its components, the insertion unit 1 has a filter sieve 25 which is arranged in the inflow direction in front of the jet splitter 9 and possibly also in front of the intermediate flow rate regulator 19. The filter sieve 25 of the insertion unit 1 is funnel-shaped, the funnel shape of this filter sieve 25 tapering towards an inflow-side channel opening of the at least one by-pass channel 16 provided in the insertion unit 1.

Um einen lanzenförmigen zentralen Reinigungsstrahl zu erzeugen, verjüngt sich der By-Pass-Kanal 16 der in den Figuren 1 bis 5 gezeigten Einsetzeinheit 1 in Richtung zu einer zentralen Düsenöffnung hin, welche Düsenöffnung den geringsten lichten Querschnitt des betreffenden By-Pass-Kanals aufweist.In order to generate a lance-shaped central cleaning jet, the by-pass channel 16 tapers in the Figures 1 to 5 Insertion unit 1 shown towards a central nozzle opening, which nozzle opening has the smallest clear cross section of the relevant by-pass channel.

Die Düsenöffnung des in der Einsetzeinheit 1 vorgesehenen By-Pass-Kanals 16 bildet eine abströmseitige Kanalöffnung. Obwohl der in der Einsetzeinheit 1 vorgeschaltete Durchflussmengenregler 19 den aus dem Flüssigkeitsweg austretenden Wasserstrahl stark abschwächen kann, wird in den Einsetzeinheit 1 zusätzlich ein demgegenüber harter Reinigungsstrahl bereitgestellt, der dennoch ein effektives Reinigen von verschmutzen Händen, Zahnbürsten, Rasierern oder anderen Gegenständen ermöglicht. Dabei wird eine Teilmenge des zu der Einsetzeinheit 1 anströmenden Wassers in dem zumindest einen By-Pass-Kanal 16 aufgefangen, dort gebündelt und anschließend durch eine als Ringspalt oder als Loch ausgeführte Düsenöffnung geführt. In dem als Düse ausgebildeten By-Pass-Kanal 16 entsteht der gebündelte, verhältnismäßig hart austretende Reinigungsstrahl, der stark genug ist, um auch einen verschmutzten Gegenstand besser reinigen zu können. Erforderlichenfalls kann die durch den By-Pass-Kanal 16 geführte Wassermenge durch den im Einsetzgehäuse 2 vorgeschalteten Durchflussmengenregler 19 mitgeregelt werden. Der durch den Flüssigkeitsweg geführte Wasserstrom, der nicht in dem düsenartig ausgebildeten By-Pass-Kanal 16 aufgefangen wird, durchläuft, wie bei einem gewöhnlichen Strahlregler oder Strahlbelüfter, zunächst den Strahlzerleger 9 und anschließend die dem Strahlzerleger 9 nachgeordneten Gitter- oder Netzstrukturen 14, 15, die als Strömungsgleichrichter oder auch als Homogenisiereinrichtung dienen. Der in der Einsetzeinheit 1 mittig angeordnete gebündelte, scharfe Reinigungsstrahl wird von dem aus dem Flüssigkeitsweg ausströmenden weichen Gesamtstrahl umfangsseitig umhüllt, so dass der Reinigungsstrahl praktisch nicht sichtbar ist. Dem Anwender wird der Eindruck vermittelt, einen gewöhnlichen Wasserstrahl vor sich zu haben, mit dem aber bei Bedarf auch eine ausreichende Reinigungswirkung erzielt werden kann.The nozzle opening of the by-pass channel 16 provided in the insertion unit 1 forms a downstream channel opening. Although the flow rate regulator 19 connected upstream in the insertion unit 1 can greatly weaken the water jet emerging from the liquid path, a comparatively hard cleaning jet is additionally provided in the insertion unit 1, which still enables effective cleaning of dirty hands, toothbrushes, razors or other objects. A portion of the water flowing to the insertion unit 1 is collected in the at least one by-pass channel 16, bundled there and then guided through a nozzle opening designed as an annular gap or as a hole. In the by-pass channel 16 designed as a nozzle, the concentrated, relatively hard cleaning jet is created, which is strong enough to be able to clean even a dirty object better. If necessary, the amount of water passed through the by-pass channel 16 can be regulated by the flow rate regulator 19 connected upstream in the insert housing 2. The water flow guided through the liquid path, which is not collected in the nozzle-like by-pass channel 16, first passes through the jet splitter 9 and then the grid or network structures 14, 15 downstream of the jet splitter 9, as in a conventional jet regulator or jet aerator , which can be used as a flow straightener or also serve as a homogenizing device. The focused, sharp cleaning jet arranged centrally in the insertion unit 1 is surrounded on the circumference by the soft overall jet flowing out of the liquid path, so that the cleaning jet is practically not visible. The user is given the impression that they have a normal jet of water in front of them, but with which a sufficient cleaning effect can be achieved if necessary.

BezugszeichenlisteReference symbol list

11
Sanitäre Einsetzeinheit (gemäß den Figuren 1 bis 5)Sanitary insertion unit (according to the Figures 1 to 5 )
22
EinsetzgehäuseInsert housing
33
Wasserauslaufwater outlet
44
Auslaufmundstückspout mouthpiece
55
RingflanschRing flange
77
AuflagerIn stock
88th
Gewindethread
99
StrahlzerlegerBeam splitter
1111
Zerlegeröffnungen (im Strahlzerleger 9)Separator openings (in the beam splitter 9)
1414
GitterstrukturGrid structure
1515
NetzstrukturNetwork structure
1616
By-Pass-KanalBy-pass channel
1717
wabenzellenförmige Gitteröffnungen (der Gitterstruktur 14)honeycomb cell-shaped grid openings (of the grid structure 14)
1818
GehäuseöffnungCase opening
1919
DurchflussmengenreglerFlow rate regulator
2020
Drosselkörper aus elastischem MaterialThrottle body made of elastic material
2121
ReglerkernRegulator core
2525
FiltersiebFilter screen
2727
GegengewindeCounter thread
2828
EinsetzteilInsert part
2929
Dichtringsealing ring

Claims (21)

  1. Sanitary insert unit (1) having an insert housing (2) which is mountable on or in a water outlet (3) of a sanitary outlet fitting and in the housing interior of which a liquid path is provided which, during use, carries water flowing through the housing interior, wherein, in the liquid path, a jet splitter (9) having a plurality of splitter openings (11) is provided, which divide the water flowing through into a plurality of individual jets, and having at least one lattice or mesh structure (14, 15) following the jet splitter (9) in the liquid path, wherein a flow rate regulator (19) is provided in the insert housing (2) on the inflow side upstream of the jet splitter (9), said flow rate regulator regulating the water flowing through during use to a pressure-independent maximum flow rate, and wherein the flow rate regulator (19) has at least one elastic annular throttle body (20) which engages around a regulator core (21) and delimits a control gap between itself and a regulating profiling provided on the outer circumferential wall of the regulator core (21) or an inner circumferential wall surrounding the throttle body (20), said control gap changing under the pressure of the water flowing through, such that the flow rate of the flow rate regulator (19) does not exceed a pressure-independent maximum value, wherein at least one bypass duct (16) that at least partially bypasses the liquid path is provided, and wherein at least one unregulated flow-through duct that leads to an inflow-side duct opening of the bypass duct (16) passes through the regulator core (21) of the flow rate regulator (19), characterized in that the at least one bypass duct (16) is in the form of a nozzle for creating at least one accelerated liquid jet, and in that the at least one bypass duct (16) for this purpose has a narrowing clear duct cross section at least in one portion.
  2. Sanitary insert unit (1) according to Claim 1, characterized in that the at least one bypass duct (16) narrows or tapers in the direction of its outflow-side duct opening at least in at least one conical portion, and in that the bypass duct (16) extends through the jet splitter (9).
  3. Sanitary insert unit (1) according to Claim 1 or 2, characterized in that the flow rate regulator (19) is arranged upstream of an inflow-side duct opening of the bypass duct (16).
  4. Sanitary insert unit according to one of Claims 1 to 3, characterized in that the at least one bypass duct (16) has an inflow-side duct opening which is arranged in the liquid path beneath at least one of the splitter openings (11) and in particular beneath at least two of the splitter openings (11).
  5. Sanitary insert unit according to Claim 4, characterized in that the smallest clear duct cross section of the at least one bypass duct (16) comprises a clear cross-sectional area which is smaller than the cross-sectional area of the splitter opening (11) that opens into the inflow-side duct opening or than the sum of the clear cross-sectional areas of the splitter openings (11) that open into the inflow-side duct opening.
  6. Sanitary insert unit according to one of Claims 1 to 5, characterized in that the jet splitter (9) is designed as a perforated plate.
  7. Sanitary insert unit according to one of Claims 1 to 6, characterized in that the jet splitter is designed as a diffuser which has an impact surface that deflects the inflowing water during use in the direction of splitter openings, which are provided in an outer circumferential wall of the diffuser.
  8. Sanitary insert unit according to Claim 7, characterized in that the outer circumferential wall of the diffuser is surrounded by an annular face, and in that, between the outer circumferential wall and the annular face, an annular gap is provided which at least partially narrows in the flow-through direction of the water.
  9. Sanitary insert unit according to one of Claims 1 to 8, characterized in that the insert unit (1) has a filter screen (25), said filter screen (25) being arranged in the inflow direction upstream of the jet splitter (9) and optionally upstream of the flow rate regulator (19) connected in between.
  10. Sanitary insert unit according to Claim 9, characterized in that the inflow-side duct opening of the bypass duct (16) is arranged in the inflow direction immediately beneath the filter screen (25) .
  11. Sanitary insert unit according to Claim 9 or 10, characterized in that the filter screen (25) widens preferably conically at least in one portion in the flow-through direction.
  12. Sanitary insert unit according to Claim 9 or 10, characterized in that the filter screen (25) is funnel-shaped, and in that the funnel shape of the filter screen (25) narrows in the direction of an inflow-side duct opening of the at least one bypass duct (16).
  13. Sanitary insert unit according to one of Claims 1 to 12, characterized in that the bypass duct (16) is arranged approximately coaxially with respect to the longitudinal centre axis of the insert housing (2) .
  14. Sanitary insert unit according to one of Claims 1 to 13, characterized in that the bypass duct (16) narrows in the direction of a preferably central nozzle opening in order to create a water jet, said nozzle opening having the smallest clear cross section of the bypass duct (16).
  15. Sanitary insert unit according to Claim 14, characterized in that the nozzle opening forms an outflow-side duct opening of the bypass duct (16).
  16. Sanitary insert unit according to Claim 15, characterized in that the outflow-side duct opening of the bypass duct (16) is arranged approximately in an outflow-side end plane of the insert housing (2) .
  17. Sanitary insert unit according to one of Claims 1 to 16, characterized in that a lattice structure (14) having approximately honeycomb-shaped lattice openings (17) is provided on an outflow-side end face of the insert housing (2).
  18. Sanitary insert unit according to one of Claims 1 to 17, characterized in that at least one preferably annular insert part (28) is inserted into the insert housing, said insert part (28) having a lattice or mesh structure (15) interposed in the liquid path.
  19. Sanitary insert unit according to Claim 18, characterized in that, in the insert housing, a plurality of insert parts (28) are arranged in the liquid path beneath the jet splitter (9).
  20. Sanitary insert unit according to one of Claims 1 to 19, characterized in that the sanitary insert unit has at least one aeration duct, which opens into the liquid path preferably beneath the jet splitter (9).
  21. Sanitary insert unit according to Claim 20, characterized in that the at least one aeration duct is designed as a housing opening (18) provided in a housing circumferential wall of the insert housing (2) .
EP17739196.8A 2016-09-08 2017-07-12 Sanitary insert unit Active EP3510204B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19168396.0A EP3540131B1 (en) 2016-09-08 2017-07-12 Sanitary insert unit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202016005553.5U DE202016005553U1 (en) 2016-09-08 2016-09-08 Sanitary insert unit
PCT/EP2017/000822 WO2018046112A1 (en) 2016-09-08 2017-07-12 Sanitary insert unit

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP19168396.0A Division-Into EP3540131B1 (en) 2016-09-08 2017-07-12 Sanitary insert unit
EP19168396.0A Division EP3540131B1 (en) 2016-09-08 2017-07-12 Sanitary insert unit

Publications (2)

Publication Number Publication Date
EP3510204A1 EP3510204A1 (en) 2019-07-17
EP3510204B1 true EP3510204B1 (en) 2023-09-20

Family

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EP17739196.8A Active EP3510204B1 (en) 2016-09-08 2017-07-12 Sanitary insert unit
EP19168396.0A Active EP3540131B1 (en) 2016-09-08 2017-07-12 Sanitary insert unit

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EP19168396.0A Active EP3540131B1 (en) 2016-09-08 2017-07-12 Sanitary insert unit

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US (1) US11873629B2 (en)
EP (2) EP3510204B1 (en)
CN (3) CN206529848U (en)
DE (1) DE202016005553U1 (en)
WO (1) WO2018046112A1 (en)

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Also Published As

Publication number Publication date
CN107806132A (en) 2018-03-16
CN206529848U (en) 2017-09-29
CN107806132B (en) 2020-01-17
DE202016005553U1 (en) 2017-12-11
EP3510204A1 (en) 2019-07-17
CN109642420A (en) 2019-04-16
EP3540131B1 (en) 2023-06-21
CN109642420B (en) 2020-10-30
EP3540131A1 (en) 2019-09-18
US11873629B2 (en) 2024-01-16
WO2018046112A1 (en) 2018-03-15
US20190234056A1 (en) 2019-08-01

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