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EP4111006B1 - Aérateur dans lequel des pièces sont verrouillées en rotation - Google Patents

Aérateur dans lequel des pièces sont verrouillées en rotation Download PDF

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Publication number
EP4111006B1
EP4111006B1 EP21713600.1A EP21713600A EP4111006B1 EP 4111006 B1 EP4111006 B1 EP 4111006B1 EP 21713600 A EP21713600 A EP 21713600A EP 4111006 B1 EP4111006 B1 EP 4111006B1
Authority
EP
European Patent Office
Prior art keywords
adjacent
component
housing
cartridge
designed
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
EP21713600.1A
Other languages
German (de)
English (en)
Other versions
EP4111006C0 (fr
EP4111006A1 (fr
Inventor
Alexander Stein
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
Publication of EP4111006A1 publication Critical patent/EP4111006A1/fr
Application granted granted Critical
Publication of EP4111006C0 publication Critical patent/EP4111006C0/fr
Publication of EP4111006B1 publication Critical patent/EP4111006B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/08—Jet regulators or jet guides, e.g. anti-splash devices
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/08—Jet regulators or jet guides, e.g. anti-splash devices
    • E03C1/084—Jet regulators with aerating means

Definitions

  • the invention relates to a sanitary insert cartridge with a cartridge housing that can be inserted into a water pipe or a water outlet of a sanitary outlet fitting and that has at least one water inlet and at least one water outlet, wherein the insert cartridge is assembled from at least two components that lie against one another and/or are connected to one another and of which at least two adjacent components are secured in their relative position to one another in the circumferential direction by means of an anti-twist device, and wherein at least one of these adjacent components is designed as an insert part that can be inserted into the cartridge housing or as a housing part of the two- or multi-part cartridge housing.
  • a jet splitter is provided in the cartridge housing of such jet regulators, which divides the water flowing through it into a large number of individual jets. These individual jets can be mixed with ambient air in a mixing zone of the cartridge housing following the jet splitter. The individual jets ventilated in this way are then directed in a flow straightener of the jet regulator slowed down and formed into a homogeneous, non-splashing and possibly also sparkling-soft outflow jet.
  • the flow straightener of these known jet regulators following the jet splitter has several consecutive insert parts, each of which has a grid, net or similar hole structure with a large number of through-flow openings.
  • sanitary insert cartridges have also been created which are designed as a non-return valve inserted into the water supply line or which have a flow rate regulator or a flow restrictor instead of or in addition to a jet regulator. Even with such sanitary insert cartridges of the type mentioned above, a precise positioning adjacent components in the circumferential direction may be desirable or even necessary.
  • An adjustable flow restrictor for a mixing valve and a method for adjusting the flow are known, wherein the flow restrictor is arranged within a cylindrical casing, wherein the flow restrictor comprises in the axial direction: a seat which is provided with an annular wall along its circumference and has flow channels which are arranged inside and along the wall, a filter head upstream of the seat, wherein the filter head surrounds the annular wall of the seat and has a dome-shaped filter which is directed against the flow, an actuator which is rotatably arranged on the seat, and a control device, wherein a constant flow regulator is integrated into the flow restrictor.
  • the solution to this problem according to the invention in the insert cartridge of the type mentioned at the outset consists in particular in that of the at least two adjacent components of the insert cartridge, at least one first component has a spur gear of the axially effective anti-twist device on the end face facing the at least one adjacent second component, which has teeth, and that an annular shoulder is provided on an inner circumference of the cartridge housing, which serves as a sliding stop when the at least one component designed as an insert part is inserted into the housing interior of the cartridge housing, and that at least one projection oriented axially parallel to a housing longitudinal axis protrudes from the annular shoulder, which protrudes into a tooth base between two adjacent teeth of the spur gear provided on an outer ring of an adjacent insert part.
  • the insert cartridge according to the invention has a cartridge housing that can be inserted into a water pipe or mounted on the water outlet of a sanitary outlet fitting. So that the insert cartridge can shape, regulate, stop or otherwise influence the water flowing through in a functional manner, the cartridge housing has at least one water inlet and at least one water outlet.
  • the insert cartridge is assembled from at least two components that lie against one another or are connected to one another.
  • the at least one first component can thus be designed, for example, as an insert part or as a housing part, which interacts with at least one adjacent second component, which in turn is also designed as a housing part or as an insert part.
  • the adjacent components can therefore form an insert part/insert part, an insert/housing part or a housing part/housing part combination.
  • At least one first component of the at least two components required for mounting the insert cartridge according to the invention has a spur gear of an axially effective anti-rotation device on the end face facing the at least one adjacent second component, which spur gear has teeth, with at least one projection provided on the adjacent end face of the at least one adjacent second component and oriented in the longitudinal direction of the housing engaging in the tooth base between adjacent teeth of this spur gear.
  • at least one of the teeth provided on the at least one first insert part can engage in a rotationally locking recess provided on the adjacent second component.
  • the insert cartridge according to the invention can also be designed with a smaller housing diameter without the outlet cross-section of the water outlet provided, for example, on the downstream housing face of the cartridge housing having to be reduced. Due to the reduced diameter requirement, the The insert cartridge according to the invention is characterized by a more favorable ratio of jet to installation diameter. Due to the self-aligning properties of the face toothing designed as an axially effective anti-twist device, the assembly of the insert cartridge according to the invention is simplified to such an extent that this assembly can also be carried out easily and automatically. Since the face toothing also compensates for manufacturing tolerances, a more precise angular positioning of the adjacent components is achieved. This effect can be used in combination with other contours of these components to simplify the manufacturing effort required to manufacture the insert cartridge according to the invention.
  • a simple and advantageous embodiment according to the invention provides that of the recesses provided on at least one adjacent second component, at least one recess is designed as a recess.
  • the anti-rotation device provided on the adjacent components that are designed to be complementary to one another can be found in the desired rotational position particularly simply and easily if the teeth provided on the at least one first component are arranged radially to the longitudinal axis of the housing.
  • the self-alignment of the adjacent components with respect to one another is facilitated if a plurality of projections spaced apart from one another in the circumferential direction are provided on the end face of the at least one second component adjacent to the at least one first component.
  • an embodiment according to the invention provides that the at least one first component and the at least one adjacent second component each have axially interlocking spur gears on their adjacent end faces as an anti-twist device.
  • the teeth on one spur gear of the anti-twist device form the projections which engage in the tooth bases of the adjacent spur gear.
  • the teeth of the first spur toothing provided on the at least one first component engage in the tooth bases of the second spur toothing of the anti-twisting device arranged on the at least one adjacent second component of the insert cartridge and provided as a counter-profiling.
  • a preferred development according to the invention which is also characterized by an axial alignment of the components adjacent to one another, provides that the teeth of the spur gear provided on the at least one first component and/or on the at least one adjacent second component rise radially from the inside to the outside and/or the tooth bases fall radially from the inside to the outside.
  • an advantageous embodiment according to the invention provides that a central axle or alignment stub is provided on the at least one first component designed as an insert part, which stub is oriented axially parallel to the longitudinal axis of the housing and which carries the first spur toothing on the front side, and that the at least one projection, the counter-profiling or the second face toothing is provided on the adjacent end face of the at least one adjacent second component.
  • a circumferential outer ring is provided on the outer circumference of the first component designed as an insert part and/or of the at least one adjacent second component of the insert cartridge, which ring carries the first or the second spur toothing on at least one of its end faces.
  • the at least one second component of the insert cartridge is designed as a housing part of a multi-part cartridge housing, and if the at least one projection, the counter-profiling or the front toothing is provided on a front edge of this housing part facing the housing interior.
  • the spur gear provided on the at least one first component does not interact with a spur gear on the at least one second component and if instead at least one projection is to be provided on the at least one second component, it is advantageous if this at least one projection is rounded or angular at its free end.
  • the outer ring of at least one of these insert parts is guided displaceably along the housing inner circumference in the cartridge housing.
  • the assembly of the insert cartridge according to the invention is made even easier since an annular shoulder is provided on the inner circumference of the cartridge housing, which serves as a sliding stop when inserting the at least one component designed as an insert part into the housing interior of the cartridge housing.
  • an embodiment according to the invention provides that at least one projection oriented parallel to the longitudinal axis of the housing protrudes from the ring shoulder, which protrudes into the tooth base between two adjacent teeth of the spur gear provided on the outer ring of an adjacent insert part.
  • the sanitary insert cartridge is designed as a jet regulator or contains a jet regulator.
  • the insert parts required to shape the water flowing through must be mounted in the simplest possible way in the most precise position possible.
  • the projection provided on the adjacent end face of the at least one adjacent second component can be designed as a pin-shaped projection 14. It is also possible for a Counter-profiling 15 is provided, the projections of which engage in the spur gear 11 of the adjacent first component. In the exemplary embodiments shown here, this counter-profiling 15 is also designed as spur gear, so that the spur gear 11 provided on the respective first component and the counter-profiling 15 of the anti-twist device 1 provided on the adjacent end face of the adjacent second component and also designed as spur gear engage with one another in such a way that the teeth 12 of the first spur gear 11 provided on the at least one first component engage in the tooth bases 13 of the second spur gear arranged on the at least one adjacent second component of the insert cartridge and serving as counter-profiling 15.
  • the teeth 12 of the first and/or second spur gears 11, 15 form projections which each engage in an associated tooth base 13 of the adjacent component.
  • a circumferential outer ring 16 is provided on the outer circumference of the first components 7, 8 designed as insert parts, which carries one of the face teeth 11, 15 of the anti-twist device 1 on at least one of its end faces.
  • the Figures 1 to 14 shown insert cartridges 101, 104, 107, 110 and 112 have a cartridge housing 2 which - as here - is designed in two parts or possibly also in several parts.
  • the cartridge housing 2 of the insert cartridges 101, 104, 107, 110 and 112 shown here has an inflow side housing part 5 or 9 and an outflow side housing part 6 or 10.
  • the insert cartridges 101, 104, 107, 110 and 112 shown here are designed as jet regulators and in particular as ventilated jet regulators.
  • the Figures 1 to 14 The jet regulators shown have a jet splitter 19 which divides the water flowing in via the water supply line into a plurality of individual jets.
  • the jet splitters 19 of the insert cartridges 101, 104, 107, 110 and 112 are designed here as a perforated plate which has a plurality of splitter openings 20.
  • the water flowing to the jet regulators is divided into individual jets in the splitter openings 20 of the perforated plate and accelerated in such a way that a negative pressure is created on the downstream side of the perforated plate.
  • This negative pressure Ambient air is sucked into the cartridge housing 2, which is mixed with the individual jets in a mixing zone arranged on the downstream side of the perforated plate.
  • These insert parts 7, 8 have a grid, net or similar hole structure, which is formed by groups of webs 22, 23 crossing each other at intersection nodes 21.
  • the grid structure of the insert parts 7, 8 shown here is formed by a group of concentric webs 22, which cross the group of radial webs 23 at the intersection nodes 21.
  • the various components of the insert cartridges 101, 104, 107, 110 and 112 can be aligned with one another in such a way that the individual jets generated in the perforated plate impinge on the intersection node 21 of the first insert part 7 adjacent to this jet splitter 19.
  • the individual jets which are further divided at this intersection node 19 of the inflow-side insert part 7 and mixed with ambient air, then impinge on the intersection node 21 of the second insert part 8 following in the flow direction, whereby these intersection nodes 21 of the grid structure provided on the second insert part 8 are aligned with the flow openings on the inflow-side first insert part 7.
  • the jet splitter 19 designed as a perforated plate in the Figures 1 to 14 shown insert cartridges 101, 104, 107 and 112 is integrally formed on the inflow-side housing part 5, which also carries the inflow-side portion of the housing peripheral wall
  • the cartridge housing 2 of the in Figure 10 shown insert cartridge 110 has a housing part 9 which forms the inflow-side housing front side and is designed as a perforated plate or as a jet splitter, which can be inserted into the sleeve opening of a sleeve-shaped second housing part 10 provided on the inflow front side, wherein the housing parts 9, 10 can be detachably locked together.
  • the insert parts 7, 8 of the insert cartridges 101, 104, 107, 110 and 112 designed as jet regulators each have a spur gear 11 on both end faces of their outer rings 16. While the end face of the outer rings 16 facing the adjacent insert part 8, 7 secures the relative position of the insert parts to one another, the spur gear provided on the inflow-side end edge of the insert part 7 or on the outflow-side end edge of the insert part 8 interacts with the peg-shaped projections 14 on the inflow-side housing part 5, 9 or with the counter-profiling 15 on the inner circumference of the outflow-side housing part 6.

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)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Nozzles (AREA)
  • Domestic Plumbing Installations (AREA)

Claims (14)

  1. Cartouche d'insertion sanitaire (101, 104, 107, 110, 112) avec un boîtier de cartouche (2), qui peut être insérée dans une conduite d'eau ou la sortie d'eau d'un robinet d'évacuation sanitaire et qui possède au moins une alimentation d'eau (3) et au moins une évacuation d'eau (4), laquelle cartouche d'insertion est montée à partir d'au moins deux éléments (5, 6, 7, 8, 9, 10) voisins qui sont placés les uns contre les autres et/ou sont reliés entre eux et qui sont sécurisés dans leur position relative les uns par rapport aux autres dans la direction circonférentielle au moyen d'un dispositif anti-rotation (1), l'au moins un premier élément et l'au moins un deuxième élément voisin comportant sur leurs faces frontales voisines l'une de l'autre chacun des dentures frontales (11, 15) engrenées entre elles axialement en guise de dispositif anti-rotation (1) et au moins un de ces éléments voisins étant configuré comme une pièce d'insertion (7, 8) insérable dans le boîtier de cartouche, caractérisée en ce que sur la périphérie interne de boîtier du boîtier de cartouche (2) est prévu un épaulement annulaire (26) qui sert de butée coulissante lors de l'insertion de l'au moins un élément configuré comme une pièce d'insertion (7, 8) dans l'espace intérieur de boîtier du boîtier de cartouche (2), et que sur l'épaulement annulaire (26) fait saillie au moins un ergot (14) dont l'axe est orienté parallèlement à l'axe longitudinal du boîtier et qui fait saillie dans un fond de dent (13) entre deux dents (12) voisines de la denture frontale (11) prévue sur une bague extérieure (16) d'une pièce d'insertion (8) voisine, et que sur la périphérie extérieure de l'au moins un premier élément configuré comme une pièce d'insertion et/ou de l'au moins un deuxième élément voisin de la cartouche d'insertion est prévue la bague extérieure périphérique (16) qui porte sur au moins une de ses faces frontales la ou une première ou deuxième denture frontale (11, 15) des dentures frontales (11, 15) engrenées entre elles.
  2. Cartouche d'insertion sanitaire (101, 104, 107, 110, 112) selon la revendication 1, caractérisée en ce que les dents (12) d'une première denture frontale (11) des dentures frontales engrenées entre elles (11, 15) prévue sur l'au moins un premier élément pénètrent dans les fonds de dent (13) d'une deuxième denture frontale des dentures frontales engrenées entre elles (11, 15) disposée sur l'au moins un deuxième élément voisin de la cartouche d'insertion.
  3. Cartouche d'insertion sanitaire selon une des revendications précédentes, caractérisée en ce que les dents (12) de la ou d'une denture frontale (11 ; 15) des dentures frontales engrenées entre elles (11, 15) prévue sur l'au moins un premier élément et/ou sur l'au moins un deuxième élément voisin se dressent axialement de l'intérieur vers l'extérieur et/ou les fonds de dent (13) s'enfoncent radialement de l'intérieur vers l'extérieur.
  4. Cartouche d'insertion sanitaire selon une des revendications précédentes, caractérisée en ce que sur l'au moins un premier élément configuré comme une pièce d'insertion est prévu un embout d'axe central dont l'axe est orienté parallèlement à l'axe longitudinal du boîtier et qui porte frontalement la ou une première denture frontale des dentures frontales engrenées entre elles (11, 15), et que l'au moins un ergot, un profil antagoniste ou la ou une deuxième denture frontale des dentures frontales engrenées entre elles (11, 15) est prévu sur la face frontale voisine de l'au moins un deuxième élément voisin.
  5. Cartouche d'insertion sanitaire (101, 104, 107, 110, 112) selon une des revendications précédentes, caractérisée en ce que l'au moins un deuxième élément de la cartouche d'insertion est configuré comme un élément de boîtier (5, 6 ; 9, 10) du boîtier de cartouche, et que l'au moins un ergot, un profil antagoniste ou la deuxième denture frontale est prévu sur un bord frontal de cet élément de boîtier orienté vers l'espace intérieur de boîtier.
  6. Cartouche d'insertion sanitaire (101, 104, 107, 110, 112) selon une des revendications précédentes, caractérisée en ce que l'au moins ergot (14) est configuré en forme de tenon et est arrondi ou anguleux à son extrémité libre.
  7. Cartouche d'insertion sanitaire (101, 104, 107, 110, 112) selon une des revendications 1 à 6, caractérisée en ce que le boîtier de cartouche (2) a au moins un orifice de boîtier du côté afflux en guise d'admission d'eau, et que l'au moins un orifice de boîtier peut être obturé au moyen d'un deuxième élément, lequel deuxième élément est configuré comme un disperseur de jet (19) avec des orifices de disperseur (20), lequel disperseur de jet (19) peut être encliqueté sur le pourtour intérieur de boîtier du boîtier de cartouche (2) et en particulier encliqueté de façon détachable.
  8. Cartouche d'insertion sanitaire (101, 104, 107, 110, 112) selon la revendication 7, caractérisée en ce que sur le disperseur de jet (19) fait saillie au moins un ergot (14) dont l'axe est orienté parallèlement à l'axe longitudinal du boîtier, lequel (14) interagit avec une denture frontale (11) située sur le bord frontal voisin de la bague extérieure (16) d'un deuxième élément voisin configuré comme une pièce d'insertion (7).
  9. Cartouche d'insertion sanitaire (101, 104, 107, 110, 112) selon une des revendications précédentes, caractérisée en ce que la bague extérieure (16) d'au moins une des pièces d'insertion (7, 8) est guidée de façon coulissante le long du pourtour intérieur de boîtier dans le boîtier de cartouche (2).
  10. Cartouche d'insertion sanitaire (101, 104, 107, 110, 115) selon une des revendications précédentes, caractérisée en ce que cette cartouche d'insertion sanitaire est configurée comme un régulateur de jet ou contient un régulateur de jet.
  11. Cartouche d'insertion sanitaire (101, 104, 107, 110, 112) selon une des revendications précédentes, caractérisée en ce que parmi les au moins deux éléments voisins (5, 6, 7, 8, 9, 10) de cette cartouche d'insertion (101, 104, 107, 110, 112), au moins un premier élément comporte sur la face frontale orientée vers l'au moins un deuxième élément voisin une denture frontale (11) du dispositif anti-rotation (1) à action axiale, laquelle (11) a des dents (12), et que
    - au moins une des dents (12) pénètre dans un logement (27) prévu sur l'au moins un deuxième élément voisin.
  12. Cartouche d'insertion sanitaire (101, 104, 107, 110, 115) selon la revendication 11, caractérisée en ce que le logement (27) est configuré comme un renfoncement.
  13. Cartouche d'insertion sanitaire (101, 104, 107, 110, 112) selon une des revendications précédentes, caractérisée en ce que parmi les au moins deux éléments voisins (5, 6, 7, 8, 9, 10) de cette cartouche d'insertion (101, 104, 107, 110, 112), au moins un premier élément comporte sur la face frontale orientée vers l'au moins un deuxième élément voisin une denture frontale (11) du dispositif anti-rotation (1) à action axiale, laquelle (11) a des dents (12), et que dans au moins un fond de dent (13) entre des dents (12) voisines de cette denture (11) pénètre un ergot du dispositif anti-rotation (1) prévu sur la face frontale voisine de l'au moins un deuxième élément voisin et orienté dans la direction longitudinale du boîtier.
  14. Cartouche d'insertion sanitaire (101, 104, 107, 110, 112) selon une des revendications 12 à 13, caractérisée en ce que les dents (12) prévues sur l'au moins un premier élément sont disposées de sorte à s'étendre axialement par rapport à l'axe longitudinal du boîtier et/ou que plusieurs ergots espacés les uns des autres dans la direction périphérique sont prévus sur la face frontale voisine de l'au moins un deuxième élément.
EP21713600.1A 2020-03-16 2021-03-16 Aérateur dans lequel des pièces sont verrouillées en rotation Active EP4111006B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202020101430.7U DE202020101430U1 (de) 2020-03-16 2020-03-16 Sanitäre Einsetzpatrone
PCT/EP2021/056723 WO2021185861A1 (fr) 2020-03-16 2021-03-16 Aérateur dans lequel des pièces sont verrouillées en rotation

Publications (3)

Publication Number Publication Date
EP4111006A1 EP4111006A1 (fr) 2023-01-04
EP4111006C0 EP4111006C0 (fr) 2024-07-03
EP4111006B1 true EP4111006B1 (fr) 2024-07-03

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ID=75143605

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21713600.1A Active EP4111006B1 (fr) 2020-03-16 2021-03-16 Aérateur dans lequel des pièces sont verrouillées en rotation

Country Status (5)

Country Link
US (1) US20230097806A1 (fr)
EP (1) EP4111006B1 (fr)
CN (1) CN115298396B (fr)
DE (1) DE202020101430U1 (fr)
WO (1) WO2021185861A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ2022360A3 (cs) * 2022-08-29 2024-03-13 Macháčková, Alena Zařízení na úsporu vody s nastavitelným mechanismem kontroly průtoku

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3760020B2 (ja) * 1997-04-03 2006-03-29 株式会社喜多村合金製作所 回転機能付断熱キャップ
DE102012021361B4 (de) * 2012-11-02 2014-11-06 Neoperl Gmbh Strahlregler
DE102013003925A1 (de) * 2013-03-08 2014-09-11 Neoperl Gmbh Sanitäres Einbauteil, Einbauteil-Anordnung und Sanitärarmatur
DE102015002740A1 (de) * 2015-03-05 2016-09-08 Neoperl Gmbh Strahlregler
SE540044C2 (sv) * 2015-03-23 2018-03-06 Ngl Teknik I Linkoeping Ab Ställbar flödesbegränsare för en blandare och ett förfarandeför att ställa flödet
DE202015006618U1 (de) * 2015-09-18 2016-12-21 Neoperl Gmbh Strahlregler
CN114729528B (zh) * 2019-11-28 2024-06-21 微笑之音株式会社 水龙头金具用流体流动控制装置

Also Published As

Publication number Publication date
CN115298396B (zh) 2025-08-29
WO2021185861A1 (fr) 2021-09-23
EP4111006C0 (fr) 2024-07-03
CN115298396A (zh) 2022-11-04
US20230097806A1 (en) 2023-03-30
EP4111006A1 (fr) 2023-01-04
DE202020101430U1 (de) 2021-06-17

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