EP3690154B1 - Jet regulator - Google Patents

Description

The invention relates to a jet regulator which can optionally be switched between at least two outlet jet patterns and which for this purpose has a jet regulator housing with at least two housing parts that can be rotated relative to one another, of which a first housing part on the inflow side can be non-rotatably mounted on the water outlet of a sanitary outlet fitting and of which at least a second housing part on the outflow side is designed as a handle on its outflow-side housing outer circumference or is connected to a handle, the first housing part having a jet splitter with several splitter openings, with jet channels spaced apart from one another being provided on the inside circumference of the second housing part, the individual jets coming from the splitter openings in a first rotational position of the housing parts guided through the jet channels and formed into a ring-shaped circumferential outlet jet pattern and in a second rotary position inside the housing of the jet regulator to a central len outlet opening of the jet regulator housing are deflected, the jet splitter having two jet splitter sub-areas, of which a central first jet splitter sub-area is cup-shaped, the central first jet splitter sub-area being connected to a second jet splitter section designed as a circumferential ring flange or ring shoulder, and wherein the splitter openings are provided in the second jet splitter section.

From the US 2014/0300010 A1 a sanitary insert unit of the type mentioned above is already known which can be inserted into a sleeve-shaped outlet mouthpiece in order to be able to be mounted on the water outlet of a sanitary outlet fitting. The previously known insertion unit has a Inflow-side attachment or filter screen for filtering out any dirt particles that may be carried in the inflowing water, and an outflow-side jet regulator of the type mentioned above, which can be manually switched between two outlet jet patterns. While one outlet jet image delivers a spray jet formed by a number of individual jets, the other outlet jet image of the previously known jet regulator represents a voluminous ventilated outlet jet. Between the inflow-side attachment or filter screen and the outflow-side jet regulator, a flow rate regulator is provided in the previously known insert unit, which regulate the amount of water flowing through to a maximum value per unit of time that is also independent of the water pressure.

The previously known insert unit and in particular its jet regulator, which can be switched between two outlet jet patterns, are comparatively expensive to construct and manufacture. In addition, the outlet jet images generated in the previously known insertion unit are still comparatively unclean and unstable.

From the US 7 017 837 B2 a jet regulator is known which can also be switched between a ventilated total jet and a spray jet formed from a number of individual jets. This known jet regulator is also comparatively expensive to design and manufacture.

There is therefore, in particular, the task of creating a jet regulator of the type mentioned at the beginning, which can be produced with comparatively little effort and which is characterized by clearly distinguishable and inherently stable outlet jet images.

The inventive solution to this problem provides that the pot-shaped jet splitter has pins or pegs which are spaced apart from one another on the outflow side of its pot bottom and which form pin-shaped flow obstacles.

The jet splitter of the jet regulator according to the invention has two jet splitter sub-areas, of which a central first jet splitter sub-area is designed as a pot-shaped calming zone in which the inflowing water is slowed down and deflected over the circumferential wall of this pot shape in the radial direction to the second jet splitter sub-area second jet splitter sub-area is designed as an annular shoulder or ring flange in which the splitter openings of the jet splitter are provided. According to the invention it is provided that the pot-shaped jet splitter has pins or pegs which are spaced apart from one another on the outflow side of its pot bottom and which form pin-shaped flow obstacles.

Since the pins or pegs provided on the downstream side of the jet splitter form pin-shaped flow obstacles through which the water coming from the deflecting slopes has to wind through, the speed of the water between these pin-shaped obstacles is effectively reduced.

So that the water flowing through the jet regulator according to the invention can be guided inside the jet regulator housing in one of the rotary positions into the central first jet regulator part area, it is advantageous if deflection bevels are provided on the inner circumference of the second housing part, which the individual jets formed in the splitting openings in at least a second rotational position of the housing parts in the direction of the central first jet regulator sub-area.

That over the deflection slopes towards the central first Water diverted from the jet regulator sub-area arrives there at a comparatively high speed, which must now first be reduced before the water flowing through the jet regulator according to the invention can be shaped and changed in the desired manner. In order to slow down the speed of the water arriving on the outflow side of the deflection bevels, it is expedient if pin-shaped or web-shaped flow obstacles spaced apart from one another are provided on the outflow side of the deflection bevels.

A preferred embodiment according to the invention provides that the pins or tenons preferably taper conically towards their outflow-side pin or tenon end and / or that the pin or tenon end of the pins or tenons is rounded.

In order to additionally reduce the speed of the water guided through the pins or pegs, it is advantageous if a central portion of the pot bottom protrudes on the outflow side of the pot bottom of the pot-shaped jet splitter and / or if the pot bottom of the pot-shaped jet splitter is stepped at least on its outflow side.

So that the jet regulator according to the invention can be made comparatively compact, it is advantageous if the pin or pin ends of the pins or pins are arranged approximately in one plane.

In order to form the circular, circumferential outlet jet pattern by visibly separated spray jets, it is advantageous if the jet channels are followed by spray nozzles in the direction of flow and if the spray nozzles preferably open into the outlet-side section of the jet regulator housing.

In order to shape the water that is more or less whirled up inside the jet regulator into a homogeneously flowing jet, it is advantageous if at least one ring insert is provided between the jet channels and the spray nozzles, which has a grid or mesh structure serving as a flow straightener. So that the function of this grid or mesh structure as a flow straightener is additionally favored, it is advantageous if the wall sections delimiting the grid or mesh openings have a longer length in the direction of flow compared to the opening width of these grid or mesh openings.

A particularly advantageous embodiment according to the invention provides that the lattice structure of the ring insert is formed by preferably radial webs which, as lattice openings, delimit flow holes between them.

So that the individual jets forming the ring-shaped circumferential outlet jet pattern form a conically widening outlet jet pattern, it is advantageous if at least an inner sub-area of the circumferential walls surrounding the spray nozzles is directed obliquely outward.

A stable and uniform discharge jet pattern is promoted if the splitter openings are arranged evenly distributed over the second jet splitter partial area.

A particularly good braking effect of the water flowing towards the jet regulator according to the invention is promoted if the pot-shaped first jet splitter sub-area is designed without holes.

In order to further reduce the low construction and manufacturing costs, it is advantageous if the jet splitter with the first housing part on the inflow side is integrally connected.

A preferred embodiment according to the invention provides that the second housing part is designed in the form of a sleeve, at least in its partial area on the inflow side.

In order to be able to rotate the first and second housing parts of the jet regulator housing in a simple manner relative to one another and still be able to securely connect them to one another, it is advantageous if the first and second housing parts can be detachably connected to one another, preferably latched together.

A space-saving and compact design of the jet regulator according to the invention is promoted if the cup-shaped first jet splitter section of the first housing part protrudes into the interior of the sleeve of the second housing part.

By rotating the two housing parts relative to one another, the splitter openings of the jet splitter provided in the first housing part are aligned in their position relative to the channel openings of the jet channels provided in the second housing part. While the splitter openings are arranged above the channel openings of the jet channels in a latching position corresponding to the first rotational position, these splitter openings in the second rotary position of the housing parts are aligned with the free space or longitudinal gap remaining between the jet channels in the interior of the jet regulator housing. The water guided through the free spaces remaining between the jet channels can be deflected into a central section in the interior of the jet regulator housing in order to exit from the jet regulator housing as an optionally ventilated overall jet.

In order to be able to separate the flow paths assigned to an outlet jet pattern in the interior of the jet regulator housing without these flow paths having to be sealed against each other, it is advantageous if an inner sleeve is provided in the second housing part, the outlet end face of which forms the central outlet opening.

A particularly simple and easily producible embodiment according to the invention provides that the inner sleeve is molded in one piece into the second housing part.

The water guided through the inner sleeve can easily be formed into a homogeneous and non-splashing overall jet if the outlet face of the inner sleeve, which forms the central outlet opening and is designed as a grid or mesh structure, is formed by webs that intersect at intersections and border between outlet openings.

A preferred embodiment according to the invention provides that at least one flow divider is provided on at least one deflection slope, which at least one flow divider divides the water flowing along the deflection slope into partial flows. The flow dividers provided in at least one of the deflection slopes and preferably in all deflection slopes divide the water flowing past them into at least two partial flows, which are then further divided at the flow obstacles following in the flow direction.

It is particularly advantageous if the at least one flow divider protrudes in a fin shape over the at least one deflection slope.

It can be advantageous if the individual jets formed in the splitter openings are guided against an external wall of the jet channels in at least a first rotational position of the housing parts, and if for this purpose at least one of the channel walls of the splitter openings and preferably an internal channel wall of the splitter openings obliquely outwards opposite the jet regulator longitudinal axis is oriented.

In this inventive proposal, the water divided in the jet splitter and guided through the splitter openings is directed from there as individual jets against the outer channel wall of the jet channels in order to flow from there at least initially as individual jets arranged in a ring to one another to the jet regulator outlet.

A clean and stable outlet jet pattern is additionally promoted if the jet channels are arranged in an annular gap between the outer circumference of the inner sleeve and the inner circumference of the jet regulator housing.

So that the individual jets emerging from the jet channels can still form an outlet jet pattern inside the housing that forms an annular wall or so that the individual jets emerge from the jet regulator according to the invention as individual, annularly arranged spray jets, it is advantageous if the jet channels open into a partial area of the jet regulator housing on the outlet side and if this outlet-side sub-area has a clear housing cross-section that widens in the outlet direction. In this embodiment, the jet channels open into the interior of the jet regulator housing in a partial area on the outlet side, where they can combine, for example, to form an annular wall formed from a thin band of water. Since the outlet side Partial area has a clear housing cross-section that widens in the outlet direction, this ring wall spreads slightly after exiting the jet regulator housing, whereby this ring wall is maintained over a comparatively long distance of the exiting water jet without the water collapsing into an unclean and disordered jet pattern .

The stability of the individual spray jets or the ring wall formed here from the individual jets is maintained over a comparatively long distance even after exiting the jet regulator housing if a profiling is provided on the inner circumference of the outlet-side sub-area of the jet regulator housing, which is formed by indentations and formations oriented in the direction of flow is formed. These indentations and formations on the inner circumference of the jet regulator housing lead to the fact that the ring wall formed by the water is maintained over a longer distance as a constant water film. So that the outlet jet pattern formed on the inner circumference of the jet regulator housing can emerge particularly cleanly from the jet regulator according to the invention, it is advantageous if the jet regulator housing has a tear-off edge on the inner circumference of its outlet-side partial area.

A uniformity of the jet pattern over a large pressure range is favored if the jet regulator is part of a sanitary insert unit and if the jet regulator is preceded by a flow rate regulator or a flow throttle.

A particularly compact and space-saving design is promoted if the flow rate regulator or the flow throttle can be inserted up to a support in the first housing part.

The flow rate regulator or the flow throttle can be securely housed in the interior of the jet regulator housing and in particular the first housing part on the inflow side if an attachment or filter screen is connected upstream of the flow rate regulator or the flow throttle, which can preferably be releasably fixed on the first housing part. This attachment or filter screen has to filter out any lime or similar dirt particles contained in the incoming water, which could otherwise impair the function of the insert unit and its jet regulator.

So that the respective outlet jet patterns can also be changed with the changes in the rotational positions, it is advantageous if a deflecting bevel is provided between adjacent jet channels.

So that the water deflected over the deflection slopes on the outflow side of the jet splitter can pass the pin-shaped or web-shaped flow obstacles provided there, it is advantageous if the at least one deflection slope has a deflection slope outlet which opens below the jet splitter in the inside of the sleeve of the second housing part.

In order to achieve an additional speed reduction of the water deflected in the jet regulator housing, it is advantageous if at least one of the deflecting bevels has at least one, preferably fin-like, flow divider in the area of its deflecting bevel outlet.

Developments according to the invention emerge from the claims in conjunction with the drawing and the description. The invention is described in more detail below with reference to a preferred exemplary embodiment.

Fig. 1

eine in einem Längsschnitt dargestellte sanitäre Einsetzeinheit, die mit Hilfe eines Auslaufmundstücks am Wasserauslauf einer sanitären Wasserauslaufarmatur montierbar ist und die einen abströmseitigen Strahlregler, ein zuströmseitiges Vorsatz- oder Filtersieb und einen dazwischen angeordneten Durchflussmengenregler umfasst, wobei das Strahlreglergehäuse zwei Gehäuseteile aufweist, die zur Auswahl zwischen zwei Auslaufstrahlbildern des Strahlreglers relativ zueinander verdrehbar sind,

Fig. 2

die hier in einem deutlichen vergrößerten Maßstab gezeigte Einsetzeinheit aus Figur 1 in einer gegenüber Figur 1 abweichenden Drehstellung der Gehäuseteile des Strahlreglergehäuses,

Fig. 3

die Einsetzeinheit aus den Figuren 1 und 2 in einer auseinandergezogenen Perspektivdarstellung der Gehäuseteile in einer der Drehstellung gemäß Figur 1 entsprechenden Relativposition,

Fig. 4

die Einsetzeinheit aus den Figuren 1 bis 3 in einer auseinandergezogenen Perspektivdarstellung der Gehäuseteile in einer der Drehstellung gemäß Figur 2 entsprechenden Relativposition,

Fig. 5

die Einsetzeinheit aus den Figuren 1 bis 4 in einer auseinandergezogenen Einzelteildarstellung mit Blick etwa in Durchströmrichtung,

Fig. 6

die Einsetzeinheit aus den Figuren 1 bis 5 in einer auseinandergezogenen Einzelteildarstellung mit Blick entgegen der Durchströmrichtung,

Fig. 7

die in einer Seitenansicht gezeigten Einzelteile der Einsetzeinheit aus den Figuren 1 bis 6,

Fig. 8

die Einsetzeinheit aus den Figuren 1 bis 7 in einer Seitenansicht,

Fig. 9

die Einsetzeinheit aus den Figuren 1 bis 8 in einem perspektivischen Querschnitt durch Schnittebene IX-IX gemäß Figur 8,

Fig. 10

eine Detailansicht in dem in Figur 9 gezeigten Ausschnitt im Bereich einer zwischen den Gehäuseteilen vorgesehenen Drehrasterung,

Fig. 11

eine perspektivische Unteransicht auf das zuströmseitige erste Gehäuseteil,

Fig. 12

eine perspektivische Draufsicht auf das abströmseitige zweite Gehäuseteil,

Fig. 13

eine perspektivische Unteransicht auf die Auslaufstirnseite des zweiten Gehäuseteiles,

Fig. 14

einen perspektivischen Längsschnitt durch das abströmseitige zweite Gehäuseteil mit Blick entgegen der Durchströmrichtung,

Fig. 15

einen in Umfangsrichtung geringfügig verdrehten Längsschnitt durch das abströmseitige zweite Gehäuseteil, bei dem nun der profilierte Gehäuseinnenumfang am zweiten Gehäuseteil sichtbar wird,

Fig. 16

eine weitere, ebenfalls längsgeschnitten dargestellte Ausführung einer sanitären Einsetzeinheit, die mit Hilfe eines Auslaufmundstücks am Wasserauslauf einer sanitären Wasserauslaufarmatur montierbar ist, wobei der Längsschnitt hier im Bereich der Längsmittelachse der Einsetzeinheit abgewinkelt ist,

Fig. 17

die Einsetzeinheit aus Figur 16 in einem anderweitig abgewinkelten Längsschnitt,

Fig. 18

die Einsetzeinheit aus Figur 16 und 17 in einer perspektivischen Draufsicht auf die Zuströmseite ihrer auseinandergezogenen Einzelteile,

Fig. 19

die Einsetzeinheit aus Figur 16 bis 18 in einer perspektivischen Unteransicht auf die Abströmseite ihrer auseinandergezogenen Einzelteile,

Fig. 20

die Einsetzeinheit aus den Figuren 16 bis 19 in einer Seitenansicht auf ihre auseinandergezogenen Einzelteile,

Fig. 21

die Einsetzeinheit aus den Figuren 16 bis 20 in einem Querschnitt,

Fig. 22

die Einsetzeinheit aus den Figuren 16 bis 21 in einer quergeschnittenen Detailansicht in dem in Figur 21 gekennzeichneten Bereich einer ihrer Strahlkanäle,

Fig. 23

die Einsetzeinheit aus den Figuren 16 bis 22 in einer vereinfachten Seitenansicht, wobei die Schnittebene des Querschnittes aus Figur 21 veranschaulicht ist,

Fig. 24

die Gehäuseteile der in den Figuren 16 bis 23 gezeigten Einsetzeinheit in einer ersten Drehstellung,

Fig. 25

die Gehäuseteile aus Figur 21 in einer zweiten Drehstellung,

Fig. 26

das zuströmseitige erste Gehäuseteil der in den Figuren 16 bis 25 gezeigten Einsetzeinheit in einer perspektivischen Drunteransicht auf die Abströmseite,

Fig. 27

das abströmseitige zweite Gehäuseteil in einer perspektivischen Draufsicht auf die Zuströmseite,

Fig. 28

das abströmseitige zweite Gehäuseteil in einer Drunteransicht auf dessen Abströmseite, und

Fig. 29

die in den Figuren 16 bis 28 gezeigte Einsetzeinheit in einem in Längsrichtung vorgenommenen perspektivischen Anschnitt im Bereich einer der Strahlkanäle.

It shows:

Fig. 1

a sanitary insert unit shown in a longitudinal section, which can be mounted with the aid of an outlet mouthpiece on the water outlet of a sanitary water outlet fitting and which comprises an outflow-side jet regulator, an inflow-side attachment or filter screen and a flow rate regulator arranged in between, the jet regulator housing having two housing parts that can be selected between two outlet jet images of the jet regulator can be rotated relative to one another,

Fig. 2

the insertion unit shown here on a clearly enlarged scale Figure 1 in an opposite Figure 1 deviating rotary position of the housing parts of the jet regulator housing,

Fig. 3

the insertion unit from the Figures 1 and 2 in an exploded perspective view of the housing parts in one of the rotational position according to FIG Figure 1 corresponding relative position,

Fig. 4

the insertion unit from the Figures 1 to 3 in an exploded perspective view of the housing parts in one of the rotational position according to FIG Figure 2 corresponding relative position,

Fig. 5

the insertion unit from the Figures 1 to 4 in an exploded view of individual parts with a view roughly in the direction of flow,

Fig. 6

the insertion unit from the Figures 1 to 5 in an exploded detail view with a view against the direction of flow,

Fig. 7

the individual parts of the insert unit shown in a side view from the Figures 1 to 6 ,

Fig. 8

the insertion unit from the Figures 1 to 7 in a side view,

Fig. 9

the insertion unit from the Figures 1 to 8 in a perspective cross section through section plane IX-IX according to Figure 8 ,

Fig. 10

a detailed view in the in Figure 9 The section shown in the area of a rotary grid provided between the housing parts,

Fig. 11

a perspective view from below of the first housing part on the inflow side,

Fig. 12

a perspective top view of the downstream second housing part,

Fig. 13

a perspective view from below of the outlet end face of the second housing part,

Fig. 14

a perspective longitudinal section through the downstream second housing part with a view against the flow direction,

Fig. 15

a longitudinal section, slightly rotated in the circumferential direction, through the second housing part on the downstream side, in which the profiled inner circumference of the housing is now visible on the second housing part,

Fig. 16

Another, also shown longitudinally sectioned embodiment of a sanitary insert unit, which with With the help of an outlet mouthpiece on the water outlet of a sanitary water outlet fitting, the longitudinal section is angled here in the area of the longitudinal center axis of the insert unit,

Fig. 17

the insertion unit Figure 16 in another angled longitudinal section,

Fig. 18

the insertion unit Figure 16 and 17th in a perspective top view of the inflow side of their disassembled individual parts,

Fig. 19

the insertion unit Figures 16 to 18 in a perspective view from below of the downstream side of its individual parts,

Fig. 20

the insertion unit from the Figures 16 to 19 in a side view of its disassembled individual parts,

Fig. 21

the insertion unit from the Figures 16 to 20 in a cross section,

Fig. 22

the insertion unit from the Figures 16 to 21 in a cross-sectional detailed view in the in Figure 21 marked area of one of their beam channels,

Fig. 23

the insertion unit from the Figures 16 to 22 in a simplified side view, the cutting plane of the cross section from Figure 21 is illustrated,

Fig. 24

the housing parts of the Figures 16 to 23 insertion unit shown in a first rotary position,

Fig. 25

the housing parts Figure 21 in a second Rotary position,

Fig. 26

the first housing part on the inflow side of the insertion unit shown in FIGS. 16 to 25 in a perspective view from below onto the outflow side,

Fig. 27

the second housing part on the downstream side in a perspective top view of the upstream side,

Fig. 28

the downstream second housing part in a view from below on its downstream side, and

Fig. 29

those in the Figures 16 to 28 Insertion unit shown in a perspective section made in the longitudinal direction in the area of one of the jet channels.

In the Figures 1 to 29 two versions 1, 1 'of a sanitary insert unit are shown. As in Figure 2 As shown by way of example, the insert units 1, 1 'can be mounted with the aid of an outlet mouthpiece 28 on the water outlet of a sanitary outlet fitting, not shown here. The insert units 1, 1 'have an outflow-side jet regulator 2, 2', which can be switched between two outlet jet images (cf. Fig. 1 , 2 as Figures 24, 25 ) is switchable. The insert units 1, 1 'have an upstream attachment or filter screen 3, 3', which has to filter out the lime or dirt particles contained in the incoming water, which otherwise could get stuck in the insert units 1, 1 'and impair their functions. In order to be able to regulate the amount of water flowing through the insert units 1, 1 'per unit of time to a fixed maximum value independent of pressure, a flow rate regulator 4, 4' is arranged between the attachment or filter sieve 3, 3 'and the jet regulator 2, 2'.

In order to be able to switch between two outlet jet images, the jet regulator 2, 2 'of the insert units 1, 1' has at least two housing parts 5, 6; 5 ', 6'. While an inflow-side first housing part 5, 5 'can be non-rotatably mounted on the water outlet of the sanitary outlet fitting and for this purpose has an outer circumferential annular flange or annular shoulder 29, 29' which can be clamped between an inner circumferential annular shoulder 30 in the outlet mouthpiece 28 and the downstream end edge of the water outlet of the sanitary outlet fitting A second housing part 6, 6 'on the outflow side is designed as a handle or connected to a handle at least on its outer circumference of the housing on the outflow side. In Fig. 2 is indicated by way of example by dashed lines that a handling ring 31, which serves as a handle for manual actuation of the jet regulator 2, 2 ', can engage in the downstream part of the second housing part 6 on the outer circumference of the housing. The in Fig. 2 Solid lines, which show the jet regulator 2 and its downstream housing part 6 even without such a handling ring 31, indicate that the second housing part 6, 6 'can also be designed as a handle directly on its outer circumference, so that the second housing part 6, 6' detected there and can be rotated relative to the first housing part 5, 5 '. The first housing part 5, 5 'has a jet splitter 7, 7', which has a number of splitter openings 8, 8 'in which the incoming water is divided into a corresponding number of individual jets.

On the inner circumference of the housing of the second housing part 6, spaced-apart jet channels 9, 9 'are provided, the individual jets coming from the splitting openings 8, 8', for example, in the direction shown in FIG Figure 2 and 4th as Figure 24 shown rotary position of the housing parts 5, 6; 5 ', 6' guided through the jet channels 9, 9 'and to a ring-shaped circumferential Outlet jet image are formed, while the individual jets coming from the splitting openings 8, 8 'are in the Figures 1 and 3 as Figure 25 Rotary position shown inside the housing of the jet regulator 2 to a central outlet opening 10, 10 'of the jet regulator housing are deflected.

In order to be able to choose and differentiate between the outlet jet images, between the first and the second housing part 5, 6; 5 ', 6' are provided with a rotating notch. For this purpose, a locking profile formed from locking recesses 11, 11 'and locking cams 12, 12' is provided on a circumferential wall of the first housing part 5, 5 ', which interacts with locking teeth 13, 13', which each on the channel wall facing the inside of the jet regulator housing Beam channels 9, 9 'is formed. The housing parts 5, 6; 5 ', 6' can thus be precisely aligned with one another, so that the flow paths leading to a defined outlet jet pattern in the interior of the jet regulator housing can be precisely adhered to.

From a comparison of the Figures 8 to 10 it becomes clear that in the case of the insert unit 1 shown there, the portion of the channel wall of the jet channels 9 facing the interior of the housing and bearing the locking teeth 13 is designed as a spring tongue 14. These spring tongues are separated on both sides by wall incisions 15, 16 from the adjacent channel side walls of the jet channels 9.

The locking recesses 11, 11 'and the locking projections or locking cams 12, 12' of the locking profile are connected to one another via straight locking flanks, with a profile rounding being provided between each locking flank and a locking recess 11, 11 'or an adjacent locking cam 12, 12'. In order to achieve a full, but structurally very simple grid, the Locking profiling in relation to their locking recesses 11, 11 'and their locking cams 12, 12' designed asymmetrically. While the locking cams 12, 12 'are designed as a flat mountain peak, which is followed by a radius and then again a straight flank, this is followed by another radius, a straight flank and then a radius leading to the locking indentation, the detent indentation 11, 11' is designed here as a continuous radius. In order to achieve a clean latching position of the rotary latching, it is provided here that the radii of the profiling roundings and the latching cams 13, 13 'approximately coincide.

From a comparison of the Figures 1 to 11 it becomes clear that the jet splitter 7, 7 'has two jet splitter subregions 17, 17'; 18, 18 ', of which a central, first jet splitter sub-area 17, 17' is cup-shaped. This central first jet splitter sub-area 17, 17 'is connected to a second jet splitter sub-area 18, 18', which is designed as a circumferentially adjoining annular shoulder or ring flange and has the splitter openings 8, 8 '. The splitter openings 8, 8 'are preferably arranged uniformly distributed over the second jet splitter partial area 18, 18'.

The water flowing through the supply line and the fitting body flows through the attachment or filter sieve 3, 3 'and the flow rate regulator 4, 4', first into the centrally arranged pot-shaped jet splitter sub-area 17, 17 'and is slowed down there before the water subsequently is deflected in the direction of the splitter openings 8, 8 'provided in the second jet splitter sub-area 18, 18'. The pot-shaped jet splitter sub-area 17, 17 'serves as a calming zone for the incoming water; this pot-shaped jet splitter sub-area 17, 17 'is designed without holes.

The second housing part 6, 6 'is designed as a sleeve at least in its partial area on the inflow side. The first and the second housing part 5, 6; 5 ', 6' can be releasably latched to one another, the first housing part 5, which is integrally connected to the jet splitter 7, 7 ', is inserted into the second housing part 6, 6' in such a way that the pot-shaped first jet splitter sub-area 17, 17 'of the first housing part 5 protrudes into the interior of the sleeve of the second housing part 6, 6 '.

In the figures it can be seen particularly well that an inner sleeve 19, 19 'is provided in the second housing part 6, 6', the outlet end face of which forms the central outlet opening 10, 10 'of the jet regulator housing. In the case of the insert unit 1, this inner sleeve 19 is molded in one piece into the second housing part 6. The outlet end face of the inner sleeve 19, 19 'forming the central outlet opening 10, 10' is designed here as a lattice or mesh structure, which is formed by webs 21, 21 'which intersect at intersections and border between them. The webs 21, 21 'of this lattice structure are arranged here in such a way that the outlet openings 20, 20' practically form a honeycomb-like lattice structure.

In the in the Figures 2 and 4th The rotary position of the housing parts 5, 6 shown in the figure, the individual jets formed in the splitting openings 8 are guided against the outer channel wall of the jet channels 9. This flow path is in Figure 2 indicated by the arrow line S1. In order to guide the individual jets formed in the decomposition openings 8 against the outer channel wall, at least the inner circumferential wall of the decomposition openings 8 is oriented obliquely outwards. Each individual beam emerges from the beam channel 9 assigned to it in the bisector of the opposite channel walls, with each individual beam after impact is flattened on the inner peripheral wall of the housing and thus forms a closed and practically a circumferential ring wall forming a water curtain.

In Figure 15 it can be seen that in the outlet-side partial area of the jet regulator housing a profiling is provided on the inner circumference, which is formed by recesses and recesses 22, 23. The recesses 22 formed between two adjacent recesses 23 taper in the outlet direction in such a way that the in the rotational position according to FIG Figure 2 The spray jet generated can spread further until it exits the jet regulator housing. The indentations and recesses 22, 23 form guide ribs and guide grooves on the inner circumference of the housing, which further promote the spreading of each individual jet, so that a conically outwardly widening outlet area is created, which gives the spray jet a direction that diverges from the longitudinal axis of the jet regulator. The spreading of the spray jet formed from the individual jets is further facilitated by the fact that the outlet-side sub-area of the second housing part 6 has a clear housing cross-section that widens in the outlet direction and that a sharp tear-off edge is provided on the inner circumference of this outlet-side sub-area.

In the in the Figures 1 and 3 As shown in the rotary position, the water coming from the flow rate regulator 4 is guided outward in the radial direction to the splitter openings 8 in order to then be guided as individual jets through the free spaces or longitudinal gaps remaining between the jet channels 9, each in a radially inwardly formed and as a deflecting bevel 37 Serving rounding pass over, which deflects these individual beams in the direction of the inner sleeve 19. An insert part 24, which has a lattice or mesh structure, is inserted into the inner sleeve 19 on the inflow side has, which is formed from intersecting webs at intersection nodes. The rotational position of the housing parts 5, 6 according to FIGS Figures 1 and 3 corresponding flow path is in Figure 1 illustrated by the arrow lines S2. Since the splitter openings 8 of the jet splitter 7 represent cross-sectional constrictions, the individual jets formed in the splitter openings 8 experience an increase in speed which, according to Bernoulli's equation, leads to a negative pressure on the downstream side of the jet splitter 7. The negative pressure formed on the outflow side of the jet splitter 7 means that ambient air is sucked into the interior of the jet regulator housing via the jet channels 9, where the individual jets form a homogeneous, non-splashing and pearly soft overall jet. The mixing space formed between the insert 24 and the downstream end of the pot-shaped jet splitter section 17 is reduced by the pot-shaped design of the jet splitter 7 in such a way that a comparatively small mixing chamber is created in which no undesirable resonances can occur. The good mixing of the ambient air sucked into the interior of the housing with the water flowing through the jet regulator 2 is additionally promoted by the grid or mesh structure of the insert 24, which is arranged on the outflow side of the mixing chamber and inserted into the interior of the jet regulator housing.

From a comparison of those in the Figures 1 and 3 on the one hand and the Figures 2 and 4th Rotational positions shown on the other hand, it can be seen that the flow paths S1 and S2 do not require a seal between the two types of jet of the jet regulator 2 - namely as a spreading ring wall emerging jet on the one hand and ventilated overall jet on the other.

The flow rate regulator 4 can be inserted into the first housing part 5 up to a support 25, 25 ′. Since the attachment or filter screen 3, 3 'is releasably connected to the first housing part 5, 5', preferably releasably latched, the flow rate regulator 4, 4 'downstream of the attachment or filter screen 3, 3' in the flow direction is inside the first housing part 5, 5 'housed in a space-saving manner in the area of the jet splitter 7, 7'. The flow rate regulator 4, 4 'here has at least one annular gap 26, 26', in each of which an annular throttle body 27, 27 'made of elastic material is inserted. The at least one annular gap 26, 26 'has a regulating profile on its inner and / or outer circumferential wall, between which and the elastic throttle body 27, 27' a regulating gap remains, which narrows under the increasing pressure of the inflowing water in such a way that the per unit of time The amount of water flowing through is regulated to a specified maximum value.

Even those in the Figures 16 to 29 Insertion unit 1 'shown can be mounted with the aid of an outlet mouthpiece 28' on the water outlet of a sanitary water outlet fitting, not shown further here. The outlet mouthpiece 28 'is designed in at least two parts and has an inflow-side and an outflow-side section 32', 33 ', which sections 32', 33 'can be rotatably connected to one another. An internal or - as here - external thread 34 'is provided on the inflow-side section 32' of the outlet mouthpiece 28 ', which can be mounted in a corresponding external or internal thread on the water outlet. The rotatably interconnected sections 32 ', 33' of the outlet mouthpiece 28 'are each designed in the shape of a sleeve, with their sleeve interiors merging into one another. The jet regulator 2 'is inserted in the interior of the sleeve of the outlet mouthpiece 28' and its sections 32 ', 33'.

The jet regulator 2 'can also be switched between two outlet jet patterns. In order to be able to switch between two outlet jet images, the jet regulator 2 'also has two housing parts 5', 6 'that can be rotated relative to one another. While the first housing part 5 'on the inflow side is held firmly on the water outlet with the aid of the section 32', the second housing part 6 'on the outflow side is connected to the section 33' of the outlet mouthpiece 28 ', which serves as a handle, in such a way that the second housing part 6' is non-rotatably connected relative to the first housing part 5 'can be rotated.

On the inner circumference of the housing of the second housing part 6 ', steel channels 9', which are preferably evenly spaced from one another in the circumferential direction, capture the individual jets coming from the splitter openings 8 'of the jet splitter 7'. The second housing part 6 'is formed here from two separate parts, of which the inner sleeve 19' is inserted into an outer sleeve 42 '. The individual jets coming from the splitting openings 8 'are continued in the one, first rotational position of the housing parts 5', 6 'between the inner sleeve 19' and the outer sleeve 42 'of the second housing part 6' before they reach spray nozzles 35 'arranged on the outflow side, which in open into the outlet-side section of the jet regulator housing. In the annular space located between the jet channels 9 'and the spray nozzles 35', the jet regulator 2 'has at least one ring insert 36', which has a lattice or mesh structure and which is intended to serve as a flow straightener that smooths out the water flowing through. In the case of the ring insert 36 'used here, this lattice structure is formed by radial webs which delimit flow holes between them. Since at least the inner sub-area of the circumferential walls surrounding the spray nozzles 35 'is directed obliquely outwards, those emerging from the spray nozzles 35' are visible separately Individual jets deflected obliquely outwards, so that a ring-shaped, encircling outlet jet pattern is created from individual jets flowing apart.

In the second rotational position of the housing parts 5 ', 6' on the other hand, the individual jets emerging from the splitter openings 8 'are each guided over a deflecting bevel 37', which radially moves the individual jets formed in the splitter openings 8 'in this second rotary position in the direction of the central outlet opening 10' redirect inwards. One of the deflecting bevels 37 'is provided between adjacent jet channels 9'. A fin-shaped or fin-shaped flow divider 44 'is provided in each of the deflecting bevels 37', which already effects a first division of the inflowing water. The fin-shaped flow splitter 44 'divides the water deflected radially inward at the deflecting bevels 37' into at least two partial flows, the partial flows deflected in this way in turn impinging on the pins 38 'protruding on the downstream side of the jet splitter 7' and are divided there again in such a way that the water flowing through the jet regulator 1 'is particularly well mixed with the ambient air. The water mixed with ambient air in this way can then emerge from the jet regulator 2 'via the central outlet opening 10' as an aerated water jet.

As with the one in the Figures 1 to 15 Insertion unit 1 shown is described, the water guided over the deflecting bevels 37 'inside the jet regulator housing is also mixed with ambient air. Since the splitter openings 8 'of the jet splitter 7' also represent cross-sectional constrictions, the individual jets formed in the splitter openings 8 'experience an increase in speed which, according to Bernoulli's equation, leads to a negative pressure on the downstream side of the jet splitter 7'. The one on the downstream side The negative pressure formed by the jet splitter 7 'leads to ambient air being sucked into the interior of the jet regulator housing via the spray nozzles 35', which air is formed there with the individual jets to form a homogeneous, non-spraying and pearly-soft overall jet, which via the central outlet opening 10 'emanates. The good mixing of the ambient air sucked into the interior of the housing with the water flowing through the jet regulator 2 is additionally promoted by the pins 38 'protruding in the flow direction on the outflow side of the pot bottom of the pot-shaped jet splitter 7'. In the in Figure 25 As shown in the rotary position, the ambient air sucked in via the spray nozzles 35 'is guided via the air intake channels of the inflow-side first housing part 5', which are oriented approximately in the longitudinal direction of the jet regulator 2 ', with pocket-shaped recesses 45' being located there on the outflow side of the jet splitter 7 '. From looking at the Figures 21, 22 , 26th , 27 and 29 it becomes clear that the splitter openings 8 'of the jet splitter 7' open into channel-shaped outlet channels which are separated from one another in the circumferential direction by these pocket-shaped recesses 45 'on the outflow side of the jet splitter 7'. In the in Figure 25 shown rotary position, in which the water mixed with ambient air flows out of the jet regulator 2 'through the central outlet opening 10', an excessive splashing of the water hitting the deflecting bevels 37 'is avoided, which otherwise via the jet channels 9' serving as air intake channels in this rotary position could flow out. In the in Figure 25 As shown in the rotary position, these pocket-shaped recesses 45 'create a splash guard which prevents leakage currents from flowing out of the spray nozzles 35'. With these pocket-shaped recesses 45 ', not only can a material saving be achieved in the manufacture of the housing part 5', but these recesses 45 ', which carry on the ambient air, also offer an improved one Water splash protection.

In the Figures 1 to 29 Shown embodiments 1, 1 'are provided on the outflow side of the deflecting bevels 37, 37' spaced pin-shaped or web-shaped flow obstacles. The in the Figures 16 to 28 The jet regulator 1 shown is formed on the outflow side of the pot-shaped jet splitter 7 'on the pot bottom, pins 38' which form such pin-shaped flow obstacles. The inwardly deflected water in this rotational position is guided through these spaced apart pins 38 'and is thereby additionally decelerated. The pins 38 'taper towards their downstream pin ends and have a rounded pin end. A central pot-bottom partial area 40 'protrudes from the pot bottom of the pot-shaped jet splitter 7', this pot bottom of the jet splitter 7 'being designed step-shaped for this purpose, at least on its outflow side. Despite this stepped configuration of the pot bottom, the pin ends of the pins 38 'are arranged approximately in one plane. The individual jets coming from the splitter openings 8 ', which were guided below the bottom of the pot-shaped jet splitter 7' with the help of the deflecting bevels 37 'through the spaced apart pins 38' oriented in the longitudinal direction of the steel regulator, are then guided to the central outlet opening 10 ', which forms the exiting water into a homogeneous, non-splashing and pearly soft discharge jet pattern.

In the Figures 16 and 17th It can be seen that the first housing part of the jet regulator is inserted into the inflow end opening of the first section 32 'of the outlet mouthpiece 28' until its circumferential protruding circumferential annular flange 29 'rests on an annular shoulder 30' inside the sleeve of the first section 32 '. The first housing part 5 'is encompassed by a sealing ring 41', the one between the outer circumference of the first housing part 5 'and the downstream second section 6' seals any remaining annular gap. The outer sleeve of the second housing part 6 'is latched in the second section 33' on the downstream side, the outer sleeve 42 'also holding the inner sleeve 19' between itself and the first section 32 'at the same time. The jet splitter 7 'has on the inside of its pot bottom a central support pin 43', which supports the flow rate regulator 4 'with its pin end oriented opposite to the direction of flow.

List of reference symbols

1, 1 '

sanitary insert unit

2, 2 '

Aerator

3, 3 '

Attachment or filter sieve

4, 4 '

Flow regulator

5, 5 '

Upstream first housing part

6, 6 '

Downstream second housing part

7, 7 '

Jet splitter

8, 8 '

Butcher openings

9, 9 '

Beam channels

10, 10 '

central outlet opening

11, 11 '

Snap-in molding

12, 12 '

Locking cam

13, 13 '

Ratchet

14,

Spring tongue

15, 15 '

Wall incision

16, 16 '

Wall incision

17, 17 '

central first jet splitter section

18, 18 '

second jet splitter section

19, 19 '

Inner sleeve

20, 20 '

Outlet openings

21, 21 '

Bridges

22nd

Indentations

23

Formations

24

Insert part

25, 25 '

In stock

26, 26 '

Annular gap

27, 27 '

Throttle body

28, 28 '

Outlet mouthpiece

29, 29 '

Ring flange

30, 30 '

Ring heel

31

Handling ring

32 '

upstream section

33 '

Downstream section

34 '

External thread

35 '

Spray nozzles

36 '

Ring insert

37, 37 '

Deflection slope

38 '

pencils

40 '

central part of the bottom of the pot

41 '

Sealing ring

42 '

Outer sleeve

43 '

Support pin

44 '

Flow divider

45 '

pocket-shaped recess

46 '

channel-shaped outlet channels

S1

Flow path according to Figure 2 and 4th

S2

Flow path according to Figure 1 and 3

Claims (29)

1. Jet regulator (2, 2') which is switchable optionally between at least two outlet jet patterns and which for this purpose has a jet regulator housing with at least two housing parts (5, 6; 5', 6') which are rotatable relative to one another and of which an inflow-side first housing part (5, 5') is mountable in a rotationally fixed manner on the water outlet of a sanitary outlet fitting and of which an outflow-side second housing part (6, 6'), at least at its outflow-side housing outer circumference, is configured as a handle or is connected to a handle, wherein the first housing part (5, 5') has a jet splitter (7, 7') having a plurality of splitter openings (8, 8'), wherein mutually spaced-apart jet ducts (9, 9') are provided on the housing inner circumference of the second housing part (6, 6'), wherein the individual jets coming from the splitter openings (8, 8') are guided through the jet ducts (9, 9') and formed into an annularly circumferential outlet jet pattern in a first rotary position of the housing parts (5, 6; 5', 6'), and are deflected in the housing interior of the jet regulator (2, 2') to a central outlet opening (10, 10') in the jet regulator housing in a second rotary position, characterized in that the jet splitter (7, 7') has two jet splitter subregions (17, 18), of which a central, first jet splitter subregion (17, 17') is of pot-like form, wherein the central, first jet splitter subregion (17, 17') is connected to a second jet splitter subregion (18, 18') which is configured as an encircling annular flange or annular shoulder, and wherein the splitter openings (8, 8') are provided in the second jet splitter subregion (18, 18'), and in that the pot-like jet splitter (7') has, on the outflow side of its pot bottom, mutually spaced-apart pins (38') or pegs which form pin-shaped flow obstructions.
2. Jet regulator according to Claim 1, characterized in that deflecting slopes (37, 37') are provided on the inner circumference of the second housing part (6, 6'), said deflecting slopes (37, 37') deflecting the individual jets formed in the splitter openings (8, 8') in the direction of the central outlet opening (10, 10') in at least a second rotary position of the housing parts (5, 6; 5', 6').
3. Jet regulator according to Claim 1 or 2, characterized in that spaced-apart pin- or web-like flow obstructions are provided on the outflow side of the deflecting slopes (37, 37').
4. Jet regulator according to one of Claims 1 to 3, characterized in that the pins (38') or pegs preferably taper conically toward their outflow-side pin or peg end, and/or in that the pin or peg end of the pins (38') or pegs is rounded.
5. Jet regulator according to one of Claims 1 to 4, characterized in that a central pot-bottom subregion protrudes from the outflow side of the pot bottom of the pot-like jet splitter (7'), and/or in that the pot bottom of the pot-like jet splitter (7') is formed in a stepped manner at least on its outflow side.
6. Jet regulator according to one of Claims 1 to 5, characterized in that the pin or peg ends of the pins (38') or pegs are arranged approximately in a plane.
7. Jet regulator according to one of Claims 1 to 6, characterized in that spray nozzles (35') are connected downstream of the jet ducts (9') in the direction of flow, and in that the spray nozzles (35') preferably open out in the outlet-side subregion of the jet regulator housing.
8. Jet regulator according to Claim 7, characterized in that at least one annular insert (36'), which has a lattice or grid structure, is provided between the jet ducts (9, 9') and the spray nozzles (35').
9. Jet regulator according to Claim 8, characterized in that the lattice structure of the annular insert (36') is formed by preferably radial webs which delimit the throughflow holes between one another.
10. Jet regulator according to one of Claims 7 to 9, characterized in that at least one internal subregion of the circumferential walls that enclose the spray nozzles (35') is directed obliquely outward.
11. Jet regulator according to Claim 10, characterized in that the splitter openings (8, 8') are arranged in a manner distributed regularly over the second jet splitter subregion (18, 18').
12. Jet regulator according to Claim 10 or 11, characterized in that the pot-like first jet splitter subregion (17, 17') is configured in a hole-free manner.
13. Jet regulator according to one of Claims 1 to 12, characterized in that the jet splitter (7, 7') is connected integrally to the inflow-side first housing part (5, 5').
14. Jet regulator according to one of Claims 1 to 13, characterized in that the second housing part (6, 6') is configured in a sleeve-like manner at least in its inflow-side subregion.
15. Jet regulator according to one of Claims 1 to 14, characterized in that the first and the second housing part (5, 6; 5', 6') are connectable releasably together, and preferably latchable releasably together.
16. Jet regulator according to one of Claims 1 to 15, characterized in that the pot-like first jet splitter subregion (17, 17') protrudes into the sleeve interior of the second housing part (6, 6').
17. Jet regulator according to one of Claims 1 to 16, characterized in that an internal sleeve (19, 19') is provided in the second housing part (6, 6'), the outlet end side of said internal sleeve (19, 19') forming the central outlet opening (10, 10').
18. Jet regulator according to Claim 17, characterized in that the internal sleeve (19) is integrally formed in the second housing part (6).
19. Jet regulator according to Claim 17 or 18, characterized in that the outlet end side, forming the central outlet opening (10, 10'), of the internal sleeve (19, 19') is configured as a lattice or grid structure which is formed by webs (21, 21') that intersect at intersecting points and enclose discharge openings (20, 20') between one another.
20. Jet regulator according to one of Claims 1 to 19, characterized in that the individual jets formed in the splitter openings (8, 8') are guided against the external duct wall of the jet ducts (9, 9') in at least a first rotary position of the housing parts (5, 6; 5', 6'), and in that, for this purpose, at least one of the duct walls of the splitter openings and preferably an internal duct wall of the splitter openings (8, 8') is oriented obliquely outward with respect to the jet regulator longitudinal axis.
21. Jet regulator according to one of Claims 17 to 20, characterized in that the jet ducts (9) are arranged in an annular gap between the outer circumference of the internal sleeve (19) and the housing inner circumference of the jet regulator housing.
22. Jet regulator according to one of Claims 1 to 21, characterized in that the jet ducts (9, 9') open out in an outlet-side subregion of the jet regulator housing, and in that this outlet-side subregion has a clear housing cross section that widens in the outlet direction.
23. Jet regulator according to Claim 22, characterized in that a profile is provided on the inner circumferential side in the outlet-side subregion of the jet regulator housing, said profile being formed by indentations and protuberances (22, 23) oriented in the direction of flow.
24. Jet regulator according to Claim 22 or 23, characterized in that the jet regulator housing has a separation edge on the inner circumference of its outlet-side subregion.
25. Jet regulator according to one of Claims 1 to 24, characterized in that the jet regulator (2, 2') is a constituent part of a sanitary insert unit (1, 1'), and in that a flow rate regulator (4, 4') or a throughflow throttle is connected upstream of the jet regulator (2, 2').
26. Jet regulator according to Claim 25, characterized in that the flow rate regulator (4, 4') or the throughflow throttle is insertable into the first housing part (5, 5') as far as a support (25, 25').
27. Jet regulator according to Claim 25 or 26, characterized in that an attachment screen or filter screen (3, 3') is connected upstream of the flow rate regulator (4, 4') or the throughflow throttle, said attachment screen or filter screen (3, 3') being fixable to the first housing part (5, 5') preferably in a releasable manner.
28. Jet regulator according to one of Claims 2 to 27, characterized in that at least one flow divider (44') is provided on at least one deflecting slope, said at least one flow divider (44') dividing the water flowing along the deflecting slope (37') into part-flows.
29. Jet regulator according to Claim 28, characterized in that the at least one flow divider (44') protrudes in a fin-like manner over the at least one deflecting slope (37').

Images