EP2964844B1 - Jet regulator with housing - Google Patents

Description

The invention relates to a jet regulator with a built-in housing, which is attachable by means of a fastener or mounting ring to a water outlet of a sanitary outlet fitting, the installation housing has a downstream housing end face, in particular with flow holes and wherein in the housing at least one insert designed as a beam splitter is inserted and the jet splitter is formed as a diffuser, which cooperates with a diffuser ring, wherein the diffuser and the diffuser ring each have at their largest outer circumference acting as a retaining ring, edge arranged retaining portion for their determination in the use position, wherein the diffuser and the diffuser ring in each case up to a Einsetzanschlag in the installation housing can be used, wherein the holding areas of the diffuser and the diffuser ring in the use position in the installation housing relative to each other in the axial direction seen in verse are arranged at different altitudes and / or diameters levels, wherein the annular holding portions of the cooperating with their inner areas as a jet disintegrator diffuser and diffuser ring are arranged touching each other in the axial direction, without encompassing or embrace each other in the edge region, and wherein the largest outer diameter of the diffuser ring and its holding area is as large as or smaller than the largest outer diameter of the diffuser and its holding area.

From the DE 10 2010 048 701 A1 already a jet regulator is already known with a jet splitter, which is designed as a diffuser is, which cooperates with a diffuser ring.

In this prior art jet regulator is provided that the diffuser ring surrounds the diffuser at least partially on the outside and thereby determines axially, which allows a space-saving arrangement in the axial direction and, above all, results in a centering of the diffuser. However, this arrangement requires a relatively large amount of space in the radial direction, because the diffuser ring surrounds the annular holding region of the diffuser on the outside and thus projects beyond it in the radial direction.

From the US 5 242 119 A already a jet regulator with a built-in housing is already known, which can be mounted with the aid of a sleeve-shaped outlet mouthpiece attachment ring on the water outlet of a sanitary outlet fitting. In order for the previously known jet regulator to be able to form a homogeneous and non-squirting water jet, a jet disintegrator is used in its installation housing, which has to disassemble the inflowing water into a plurality of individual jets. The jet splitter, is designed as a perforated plate, which has a plurality of, arranged on a circular path flow through holes. In the flow direction behind the perforated plate serving as a beam splitter, a further perforated plate is arranged, which has elongated holes oriented in the circumferential direction and which is separated from the perforated plate serving as a beam splitter by a metal screen. The two perforated plates and the metal sieve separating them lie on an annular flange, which is formed on the inner periphery of a sleeve-shaped housing part. This inflow-side housing part is inserted into a housing part of the installation housing which is on the outlet side, until a holding area formed on the inflow-side housing part on the outer peripheral side and serving as a retaining ring on the inflow-side end edge of the outflow-side housing part rests.

From the US 4 403 739 A already a jet regulator is already known, the installation housing by means of a fastening ring on the water outlet of a sanitary outlet fitting can be fastened. In the built-in housing of the prior art jet regulator trained as a beam splitter insert part is used that has to divide the incoming water jet into a plurality of individual jets and disassemble. The jet splitter has a perforated plate having a plurality of flow holes arranged on a circle of holes with respect to each other. The first perforated plate is inserted in a shape-adapted depression of a second perforated plate, which also has a plurality of flow holes, which are aligned in a relative position of the two perforated plates with the flow holes of the first perforated plate, while these holes overlap only partially in another relative position and only release a reduced flow range. Although a holding region acting as a holding ring is recognizable on the second perforated plate, it completely lacks a component serving as a diffuser, which likewise has such a retaining region which acts as a retaining ring, and also lacks an annular diffuser ring.

From the EP 0 631 020 Al is a jet regulator with a built-in housing previously known, which is attachable by means of a mounting ring on the water outlet of a sanitary outlet fitting. In the installation housing a plurality of slightly spaced metal sieves are inserted, of which the downstream metal sieve forms the outlet end face of the jet regulator. On the upstream side of the metal sieves, a perforated plate serving as a jet separator is inserted into the installation housing. Although has the perforated plate serving as a jet disintegrator an acting as a retaining ring, annular and arranged on the edge side holding area, on the installation housing and serving as a beam splitter perforated plate addition, however, no component is recognizable that could serve as an annular diffuser ring with edge-side arranged holding area.

It is therefore an object to provide a jet regulator of the type defined, in which the diffuser and the diffuser ring in the from DE 10 2010 048 701 A1 However, for the diffuser ring in the radial direction only the smallest possible radial dimension is needed, wherein the diffuser and the diffuser ring should be determined in the installation housing of the jet regulator in the simplest possible way.

The achievement of this object is that at least the outer edge of the annular holding portion of the diffuser is stepped and the installation housing has an undercut for axially overlapping the radially outwardly projecting step of the diffuser, which engages step in the use position positively into the undercut.

In the jet regulator according to the invention, the holding regions of the diffuser and the diffuser ring are arranged in the installation housing relative to one another in the vertical position in different elevations and / or diameter planes, wherein the largest outer diameter of the diffuser ring and its holding portion as large as or smaller than the largest outer diameter of the diffuser and its holding area. In this case, the diffuser of the diffuser ring is arranged without any frictions, ie the diffuser ring does not have to be extended in the radial direction so far that it can embrace the largest outer circumference of the diffuser on the outside. Thus, the arrangement according to the invention makes it possible to manufacture the diffuser ring with a smaller outside diameter than it does for the solution known hitherto DE 10 2010 048 701 A1 was required, although the diffuser can maintain its dimension. The overall arrangement can thus have a smaller dimension in the radial direction and accordingly be designed to save space on the circumference of the diffuser ring.

The annular holding areas of the diffuser and the diffuser ring are arranged touching each other in the use position touching each other. Thus, as small a dimension as possible can be achieved in the axial direction, and moreover, the diffuser and the diffuser ring with their embodiments located within their holding regions can be designed and cooperate, as is already the case in the arrangement according to FIG DE 10 2010 048 701 A1 has proven. In this case, according to the invention, at least the outer edge of the annular holding portion of the diffuser is stepped and the installation housing has an undercut for axially overlapping the radially outwardly projecting step of the diffuser, which engages step in the position of use form fit into the undercut. Thus, the diffuser can be fixed in a simple manner in the mounting housing in particular form-fitting, although it is independent of the diffuser ring and not encompassed. Instead of the indirect attachment of the diffuser via the diffuser ring, the diffuser itself can be fixed by means of its holding portion in the installation housing.

Since a part of the diffuser for the function as a jet disintegrator engages in the interior of the diffuser ring, it is special favorable - also for assembly - when the annular holding portion of the diffuser is disposed in the use position higher than the annular holding portion of the diffuser ring and when the underside of the annular holding portion of the diffuser touches the top of the annular holding portion of the diffuser ring, in particular flat. In this way, the diffuser and diffuser ring reach a mutual position, in which they can effectively act as a jet disintegrator without the holding area of the diffuser ring having to surround or embrace that of the diffuser on the outside.

The contact surface of the annular holding region of the diffuser and the contact surface of the annular holding region of the diffuser ring which is in contact therewith in the position of use can lie in a plane arranged at right angles to the longitudinal central axis and can be flat. This not only facilitates their production, but also their installation, in which they can be practically successively inserted into the installation housing and "layered", whereby their inner areas get the favorable for beam separation mutual position.

It is particularly expedient if the diffuser ring which can be inserted first into the installation housing during installation is fixable in the position of use by the form-fittingly fixed diffuser and / or likewise has a gradation which mates with an undercut of the installation housing interacting with it.

Since the diffuser in the axial direction according to the invention overlaps the diffuser ring, its attachment in the installation housing may already be sufficient to fix the diffuser ring in its position of use. In addition or instead However, the diffuser ring can be fixed by means of a gradation and an undercut in the installation housing, so that under certain circumstances, both the diffuser and the diffuser ring can be held in each case by undercuts of the mounting housing in the axial direction. In particular, in automated assembly operations can be achieved in this way that even when installing the housing first insertable diffuser ring is held in a form-fitting, before the diffuser is also attached, so that the diffuser ring, for example, during transport between two Monatagepositionen or Assembly steps can not unintentionally leave its position of use.

The largest radial dimension of the undercut for the diffuser ring may correspond approximately to the smallest diameter of the undercut for the diffuser, so that the diffuser ring can pass through the slightly larger undercut opening for the diffuser and get into its use position where it will simply come into abutment or with its gradation can snap into the intended for him undercut or lock.

For the simplest possible assembly, it is advantageous if the positive connection between the diffuser and mounting housing and / or between the diffuser ring and mounting housing is a snap connection, the radially einschnappender supernatant is equal to or less than the degree of elastic compliance of the housing in the snap connection. When snapping the respective gradation on the outer circumference of the annular holding areas so the respective undercut and especially its limitation in the radial direction yield elastically so far that the corresponding step passes in the axial direction behind or under this undercut, which then spring back into their relaxed position and can produce the positive connection. This works particularly well with a built-in housing made of plastic, but also in such a metal.

Especially when combining one or more of the features and measures described above results in a jet regulator with a designed as a diffuser jet disintegrator, which despite the diffuser cooperating with the diffuser ring may have a relatively small radial dimension, because the diffuser is blank and the cooperating with him diffuser ring also in the region of its annular outer holding portion substantially parallel to the holding portion of the diffuser, without embracing or overlap.

Fig. 1

eine Seitenansicht des erfindungsgemäßen Strahlreglers in derjenigen Orientierung, die er in seiner Gebrauchsstellung beispielsweise an einem Wasserauslauf einnimmt,

Fig. 2

einen in einer Durchmesserebene angeordneten Längsschnitt des in Fig. 1 dargestellten erfindungsgemäßen Strahlreglers mit einem als Diffusor ausgebildeten Strahlzerleger, der mit einem Diffusorring zusammenwirkt, wobei Diffusor und Diffusorring jeweils an ihrem außen befindlichen ringförmigen Haltebereich umfassungsfrei übereinander angeordnet sind und aneinanderliegen,

Fig. 3

in deutlich vergrößerter Darstellung die in einem Kreis in Fig. 2 markierte Einzelheit betreffend die ringförmigen äußeren Haltebereiche des Diffusors und des Diffusorringes in Gebrauchsstellung beziehungsweise in Montageposition,

Fig. 4

eine Explosionsdarstellung des in Fig. 1 und 2 dargestellten erfindungsgemäßen Strahlreglers, wobei die auseinandergezogen gezeigten Einzelheiten perspektivisch gezeichnet sind,

Fig. 5

einen der Fig. 2 entsprechenden Querschnitt, wobei der Strahlregler mit einem Befestigungsring mit Innengewinde versehen ist, womit er an einem Wasserauslauf anbringbar ist,

Fig. 6

eine der Fig. 5 entsprechende Darstellung, wobei die ringförmigen Haltebereiche des Diffusors und des Diffusorrings analog der Darstellung in den Fig. 2 und 5 etwa parallel zueinander aufeinanderliegend angeordnet sind, aber nur der Haltebereich des Diffusors abgestuft und mit einer Hinterschneidung in dem Einbaugehäuse fixiert ist und dadurch auch den Diffusorring in axialer Richtung festlegt, sowie

Fig. 7

in vergrößerter Darstellung diese Befestigung des äußeren ringförmigen Haltebereichs des Diffusorringes durch den ringförmigen Haltebereich des Diffusors hinter der eine Abstufung des Diffusors übergreifenden Hinterschneidung.

Hereinafter, embodiments of the invention are described in more detail with reference to the drawing. It shows in partly schematized representation:

Fig. 1

a side view of the jet regulator according to the invention in that orientation, which it occupies in its position of use, for example, at a water outlet,

Fig. 2

a arranged in a diameter plane longitudinal section of in Fig. 1 illustrated jet regulator according to the invention with a diffuser designed as a diffuser, which cooperates with a diffuser ring, the diffuser and diffuser ring are each arranged on its outer annular holding area without a superimposed superimposed and abut each other,

Fig. 3

in a clearly enlarged representation in a circle in Fig. 2 marked detail concerning the annular outer holding regions of the diffuser and the diffuser ring in the use position or in the assembly position,

Fig. 4

an exploded view of the in Fig. 1 and 2 illustrated jet regulator according to the invention, wherein the details shown exploded drawn in perspective,

Fig. 5

one of the Fig. 2 corresponding cross-section, wherein the jet regulator is provided with an attachment ring with internal thread, so that it can be attached to a water outlet,

Fig. 6

one of the Fig. 5 corresponding representation, wherein the annular holding areas of the diffuser and the diffuser ring analogous to the representation in the Fig. 2 and 5 are arranged approximately parallel to each other, but only the holding portion of the diffuser graded and fixed with an undercut in the mounting housing and thereby also defines the diffuser ring in the axial direction, and

Fig. 7

in an enlarged view of this attachment of the outer annular holding portion of the diffuser ring through the annular holding portion of the diffuser behind the gradation of the diffuser cross-undercut.

A generally designated 1 jet regulator has a mounting housing 2, which is attachable by means of a fastening means, in the embodiment by means of a fastening ring 3 to a water outlet of a sanitary outlet fitting. This mounting ring 3 has in the two embodiments according to FIGS. 5 and 6 an internal thread 4, whereby it can be screwed to the external thread of a non-illustrated water spout. In this case, a sealing ring 14 serves for sealing between the water outlet and the jet regulator. 1

The installation housing 2 has a downstream end face 5 with flow holes 6. In the installation housing 2 a trained as a beam splitter insert part is used in the embodiment or in the illustration according to the FIGS. 5 and 6 used up to an insertion stop.

The aforementioned beam splitter is designed as a diffuser 7, which cooperates with a diffuser ring 8, wherein the diffuser 7 and the diffuser ring 8 each have at their largest outer circumference acting as a retaining ring, edge arranged retaining portion 7a and 8a for their determination in the position of use.

In Fig. 2 . 5 and 6 and especially good at Fig. 3 and 7 recognizes that the holding portion 7a of the diffuser 7 and the holding portion 8a of the diffuser ring 8 are arranged in the housing 2 in the use position relative to each other in the axial direction seen at different altitudes and diameters levels and that the largest outer diameter of the diffuser ring 8 and its holding portion 8a so large as ( 6 and 7 ) or smaller than the largest outer diameter of the diffuser 7 and of its holding portion 7a (FIG. Fig. 2, 3rd and 5 ). In all cases, however, the outer annular holding portion of the diffuser 7 without a frictional and ends directly on the inside of the mounting housing 2, without that between him and this installation housing still belongs to the diffuser 8 belonging portion, as it comes from the DE 10 2010 048 701 A1 is known. Correspondingly small, the entire diameter and the outer diameter of the diffuser 7 and diffuser ring 8 existing jet breaker and thus the entire jet regulator 1 may be.

The annular retaining portions 7a and 8a of the diffuser 7 and the diffuser ring 8 are in contact with each other in the axial direction touching or flat juxtaposed in use position, so that they can interact well with their inner areas as a jet disintegrator, without embracing each other in the edge region or to embrace.

The annular holding portion 7a of the diffuser 7 is arranged in the position of use in the axial direction higher than the annular holding portion 8a of the diffuser ring 8 and the underside of the annular Haltebreiches 7a of the diffuser 7 preferably contacts the top of the annular holding portion 8a of the diffuser ring 8, as far as they overlap each other , flat. In this case, the contact side of the annular holding region 7a of the diffuser 7 and the contact surface of the annular holding region 8a of the diffuser ring 8 which is in contact therewith in the position of use lie in a plane arranged at right angles to the longitudinal central axis 9. In this case, these contact surfaces in the embodiments in turn are flat, but could also be roughened or profiled or conical or inclined. The planar design shown in the embodiments facilitates the manufacture and assembly.

In the 6 and 7 is shown that at least the outer edge of the annular holding portion 7a of the diffuser 7 may be stepped and the housing 2 has on the inside an undercut 10 for axially overlapping the radially outwardly projecting step 11 of the stepped diffuser 7, which stage 11 in the position of use according to the 6 and 7 engages positively in the undercut 10 or under the undercut forming supernatant to come to rest. As a result, the diffuser ring 8, which can be inserted first during installation into the installation housing 2, is fixed by the form-fittingly fixed diffuser 7 in its position of use, and therefore does not necessarily require its own additional attachment.

In the embodiments according to Fig. 2 to 5 It is shown that the diffuser 8 arranged in the use position under the diffuser 7 and its annular holding region 7a may also have a step with a radially projecting step 12 at its annular holding region 8a, which mates with an undercut 13 of the built-in housing 2 interacting with it and cooperates in the same way as the undercut 10 with the stage 11 of the diffuser 7. Thus, the diffuser ring 8 can already form-locking set before the diffuser 7 is mounted, which is particularly favorable in an automated assembly.

In the arrangement according to the Fig. 2 to 5 and especially in Fig. 3 can be seen that the largest radial dimension of the undercut 13 for the diffuser ring 8 and its annular holding portion 8a corresponds approximately to the smallest diameter of the undercut 10 for the diffuser 7 and its stepped annular holding portion 7a, so that the step 12 at the annular holding portion 8a can be inserted well through this in use position higher-lying opening with undercut 10 and is not hindered by the supernatant on the actual undercut 10.

The positive connection between the diffuser 7 and the housing 2 as well as between the diffuser ring 8 and housing 2 may be a snap connection, wherein in 6 and 7 an embodiment is shown in which such a snap connection only between diffuser ring 7 and installation housing 2 is present. In these snap connections of the radially over the respective stage 11 and 12 snapping supernatant is equal to or smaller than the degree of elastic compliance of the mounting housing 2 in the region of these snap connections, so that it requires no additional measures such as retaining screws or the like for the production of positive engagement in the use position , Such a snap connection can be realized in a particularly simple manner if at least the installation housing 2 is made of plastic, but an embodiment of the installation housing 2 made of metal is also possible, since metal also permits a certain elastic deformation, in which the deformed area resumes after the deformation and stress in its position - elastic - returns.

The jet regulator 1 with a built-in housing contains in this installation housing 2 a trained as a beam splitter insert part, which is designed as a diffuser 7, which cooperates with a diffuser ring 8. The annular retaining regions 7a and 8a of the diffuser 7 and of the diffuser ring 8, which are respectively arranged on the largest outer circumference, are arranged in the use position in the interior of the installation housing 2 relative to one another in the axial direction at different altitudes, i. the holding area 7a of the diffuser 7 is free of framing and the largest outer diameter of the diffuser ring 8 and its holding area 8a is only as large or optionally even smaller than the largest outer diameter of the diffuser 7 and its holding area 7a, so that a space-saving arrangement in the radial direction is formed ,

Claims (6)

1. Jet regulator (1), comprising a mounting housing (2) which can be attached to a water outlet of a sanitary outlet fitting by a fastening means or fastening ring (3), wherein the mounting housing (2) has an outflow-side housing end face (5), in particular with through-flow holes (6) and wherein at least one insert part, which is designed as a jet divider, is inserted into the mounting housing (2) and the jet divider is designed as a diffusor (7) which interacts with a diffusor ring (8), wherein the diffusor (7) and the diffusor ring (8) have, in each case on their largest outside circumference, an annular retaining region (7a, 8a), which acts as a holding ring and is arranged at the edge side, for securing them in the position of use, wherein the diffusor (7) and the diffusor ring (8) can each be inserted into the mounting housing as far as an insert stop, wherein, in the position of use, the retaining regions (7a, 8a) of the diffusor (7) and diffusor ring (8) are arranged in the mounting housing (2) at different heights and/or diametral planes relative to one another when viewed in the axial direction, wherein the annular retaining regions (7a, 8a) of the diffusor (7) and diffusor ring (8), which interact with the inner regions thereof as a jet divider, are arranged lying against one another in a contacting manner in the axial direction, without mutually encompassing or engaging around one another in the edge region, and wherein the largest outside diameter of the diffusor ring (8) and of its retaining region (8a) is as large as or smaller than the largest outside diameter of the diffusor (7) and of the retaining region (7a) thereof, characterised in that at least the outside edge of the annular retaining region (7a) of the diffusor (7) is stepped and the mounting housing (2) has an undercut (10) for axially engaging over the radially outwardly projecting step (11) of the stepped diffusor (7), which step (11) engages into the undercut (10) in a positive-locking manner in the position of use.
2. Jet regulator as claimed in claim 1, characterized in that the annular retaining region (7a) of the diffusor (7) is arranged higher than the annular retaining region (8a) of the diffusor ring (8) in the position of use and in that the underside of the annular retaining region (7a) of the diffusor (7) contacts, in particular in a planar manner, the top side of the annular retaining region (8a) of the diffusor ring (8).
3. Jet regulator as claimed in claim 1 or 2, characterised in that the contact face of the annular retaining region (7a) of the diffusor (7) and the contact face of the annular retaining region (8a) of the diffusor ring (8), which is in contact therewith in the position of use, lie in a plane which is at right angles to the longitudinal central axis (9), and are themselves planar.
4. Jet regulator as claimed in any one of claims 1 to 3, characterised in that the diffusor ring (8), which can be initially introduced into the mounting housing (2) during assembly, can be secured in the position of use by means of the diffusor (7) fixed in a positive-locking manner and/or likewise comprises a stepped arrangement which fits together with an undercut (13) of the mounting housing (2) which interacts therewith.
5. Jet regulator as claimed in claim 4, characterised in that the largest radial dimension of the undercut (13) for the diffusor ring (8) corresponds approximately to the smallest diameter of the undercut (10) for the diffusor.
6. Jet regulator as claimed in any one of claims 4 or 5, characterised in that the positive-locking connection between the diffusor and the mounting housing and/or between the diffusor ring and the mounting housing is a snap-action connection, the radially snapping-in protrusion of which is equal to or smaller than the degree of elastic flexibility of the mounting housing (2) in the region of the snap-action connection.

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