EP3690154A1 - Beam controller - Google Patents

Abstract

The present invention relates to a jet regulator (2) which has a jet regulator housing with at least two housing parts (5, 6) which can be rotated relative to one another, of which a first housing part (5) on the inflow side can be non-rotatably mounted on the water outlet of a sanitary outlet fitting and of which a second housing part on the outflow side (6) is designed as a handle or connected to a handle at least on its outflow-side housing outer circumference, wherein the first housing part (5) has a jet splitter (7) with several splitter openings (8), with jet channels spaced apart on the inside circumference of the second housing part (6) (9) are provided, and the individual jets coming from the splitting openings (8) are guided through the jet channels (9) in a first rotary position of the housing parts (5, 6) and formed into an annular circumferential outlet jet pattern and in a second rotary position inside the housing Jet regulator (2) to a central outlet opening ung (10) of the jet regulator housing are deflected.

Description

The invention relates to a jet regulator which can optionally be switched between at least two outlet jet images and which has for this purpose a jet regulator housing with at least two housing parts which can be rotated relative to one another, of which an inflow-side first housing part can be rotatably mounted on the water outlet of a sanitary outlet fitting and of which an outflow-side second housing part at least is formed on its outflow-side outer circumference of the housing as a handle or is connected to a handle, the first housing part having a jet splitter with a plurality of splitting openings, with jet channels spaced apart from one another being provided on the housing inner circumference of the second housing part, the individual jets coming from the splitting openings in a first rotational position of the housing parts guided through the jet channels and formed into a circular discharge jet pattern and in a second rotational position in the interior of the jet regulator to form a center len outlet opening of the jet regulator housing are deflected, the jet splitter having two jet splitter sections, of which a central first jet splitter section is cup-shaped, the central first jet splitter section being connected to a second jet splitter section configured as a circumferential ring flange or ring shoulder, and wherein the splitting openings are provided in the second jet splitting section.

From the US 2014/0300010 A1 a sanitary insertion unit of the type mentioned at the outset 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 known insertion unit has one inflow-side attachment or filter screen for filtering out any dirt particles that may be entrained in the inflowing water, and an outflow-side jet regulator of the type mentioned at the outset, which can be switched manually between two outflow jet images. While the one outlet jet image provides a spray jet formed by a number of individual jets, the other outlet jet image of the previously known jet regulator represents a vent outlet jet which is voluminous in comparison. A flow rate controller is provided in the previously known inserting unit between the upstream filter or filter screen and the downstream jet regulator regulate the amount of water flowing through to a maximum value per time unit 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 discharge jet images are comparatively complex to design and manufacture. In addition, the discharge jet images generated in the 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 an aerated total jet and a spray jet formed from a number of individual jets. This known jet regulator is also comparatively complex in its construction and manufacture.

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

The solution to this problem according to the invention provides for the pot-shaped jet splitter to have pins or pegs spaced apart from one another on the outflow side of its pot base, which pins form pin-shaped flow obstacles.

The jet splitter of the jet regulator according to the invention has two jet splitter sections, of which a central first jet splitter section is designed as a pot-shaped calming zone, in which the inflowing water is braked and redirected over the peripheral wall of this pot shape in the radial direction to the second jet splitter section, the second jet splitter sub-area is designed as a ring shoulder or ring flange in which the splitting openings of the jet splitter are provided. According to the invention, it is provided that the pot-shaped jet splitter has on the outflow side of its pot base spaced pins or pegs 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 deflection bevels has to wind, 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 in the interior of the jet regulator housing in one of the rotational positions into the central first jet regulator sub-area, it is advantageous if deflecting bevels are provided on the inner circumference of the second housing part, which at least deflect the individual jets formed in the splitter openings deflect 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 that is deflected by the jet regulator section arrives there at a comparatively high speed, which now has to be reduced first 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 are provided on the outflow side of the deflection bevels.

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

In order to further reduce the speed of the water led through the pins or pegs, it is advantageous if a central pot base portion 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 designed in a step-like manner 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 outlet jet pattern by means of spray jets which visibly separate from one another, it is advantageous if spray nozzles are connected downstream of the jet channels in the flow direction and if the spray nozzles preferably open into the outlet region of the jet regulator housing.

In order to form the more or less swirled water 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 network structure serving as a flow straightener. So that the function of this grid or network structure as a flow straightener is additionally favored, it is advantageous if the wall sections surrounding the grid or network openings have a greater longitudinal extent in the flow direction compared to the opening width of these grid or network 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.

In order that the individual jets forming the circular outlet jet image form a conically widening outlet jet image, it is advantageous if at least one inner portion of the peripheral walls surrounding the spray nozzles is directed obliquely outwards.

A stable and uniform discharge jet pattern is favored if the splitting openings are arranged evenly distributed over the second jet splitting sub-area.

A particularly good braking effect of the water flowing to the jet regulator according to the invention is favored if the cup-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 inflow-side first housing part is integrally connected.

A preferred embodiment according to the invention provides that the second housing part is sleeve-shaped, at least in its inflow-side section.

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

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

By rotating the two housing parts relative to one another, the splitting openings of the jet splitter provided in the first housing part are aligned in their position relative to the channel openings of the beam channels provided in the second housing part. While the splitting openings are arranged in a latching position corresponding to the first rotational position above the channel openings of the jet channels, these splitting openings in the second rotating position of the housing parts are aligned with the free space or longitudinal gap between the jet channels in the interior of the jet regulator housing. In this case, 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 emerge from there as a possibly also aerated total jet from the jet regulator housing.

In order to be able to separate the flow paths in the housing interior of the jet regulator housing, each associated with an outlet jet pattern, without these flow paths having to be sealed off from one another, it is advantageous if an inner sleeve is provided in the second housing part, the outlet end of which forms the central outlet opening.

A particularly simple and easy to manufacture 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 end face of the inner sleeve, which forms the central outlet opening and is designed as a lattice or network structure, is formed by webs which intersect at intersection nodes and which delimit 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 bevels and preferably in all deflection bevels divide the water flowing past them into at least two partial streams, which are then further divided by the flow obstacles that follow in the flow direction.

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

It may be advantageous if the individual jets formed in the splitter openings are guided in at least a first rotational position of the housing parts against an outer wall of the jet channels, and if for this purpose at least one of the channel walls of the splitter openings and preferably an inner channel wall of the splitter openings obliquely outward relative to the longitudinal axis of the jet regulator is oriented.

In this proposal for the invention, 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 shape to the jet regulator outlet.

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

The stability of the individual spray jets or the annular wall formed here from the individual jets is maintained over a comparatively long distance even after they emerge from the jet regulator housing, if a profile is provided in the outlet-side section of the jet regulator housing on the inside circumference, which is formed by molding and molding oriented in the direction of flow is formed. These indentations and shapes on the inside circumference of the jet regulator housing mean that the ring wall formed by the water is maintained as a constant water film over a longer distance. So that the discharge jet image formed on the inside circumference of the jet regulator housing can emerge from the jet regulator according to the invention in a particularly clean manner, it is advantageous if the jet regulator housing has a tear-off edge on the inner periphery of its outlet-side partial area.

A uniformization of the jet pattern over a large pressure range is favored if the jet regulator is part of a sanitary application unit and if a flow rate regulator or a flow restrictor is connected upstream of the jet regulator.

A particularly compact and space-saving design is favored if the flow rate controller or the flow restrictor can be used up to a support in the first housing part.

The flow rate regulator or the flow restrictor can be securely accommodated in the interior of the jet regulator housing and in particular in the inflow-side first housing part if the flow quantity regulator or the flow restrictor is preceded by an attachment or filter screen, which can preferably be detachably fixed to the first housing part. This front screen or filter screen has to filter out the lime or similar dirt particles that may be present in the inflowing water, which could otherwise impair the function of the insert unit and its jet regulator.

So that the respective discharge jet images can also be changed with the changes in the rotational positions, it is advantageous if a deflection bevel is provided in each case between adjacent jet channels.

So that the water deflected via the deflection bevels 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 deflecting bevel has a deflecting bevel outlet which opens below the jet splitter in the sleeve interior 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 deflection bevels has at least one preferably fin or fin-like flow divider in the region of its deflection bevel outlet.

Further developments according to the invention result from the claims in connection with the drawing and the description. The invention is described in more detail below on the basis of 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 on the water outlet of a sanitary water outlet fitting with the aid of an outlet mouthpiece 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 which can be chosen from two discharge 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 one opposite Figure 1 deviating rotational position of the housing parts of the jet regulator housing,

Fig. 3

the insert unit from the Figures 1 and 2nd in an exploded perspective view of the housing parts in one of the rotational position Figure 1 corresponding relative position,

Fig. 4

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

Fig. 5

the insert unit from the Figures 1 to 4 in an exploded individual part view with a view approximately in the flow direction,

Fig. 6

the insert unit from the Figures 1 to 5 in an exploded individual part view with a view against the flow direction,

Fig. 7

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

Fig. 8

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

Fig. 9

the insert 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 shown section in the area of a rotary catch provided between the housing parts,

Fig. 11

a perspective bottom view of the inflow-side first housing part,

Fig. 12

3 shows a perspective top view of the downstream housing part,

Fig. 13

2 shows a perspective bottom view of the outlet end face of the second housing part,

Fig. 14

3 shows a perspective longitudinal section through the outflow-side second housing part with a view against the flow direction,

Fig. 15

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

Fig. 16

a further, also longitudinally shown embodiment of a sanitary insert unit, which with Can be mounted on the water outlet of a sanitary water outlet fitting with the aid of an outlet mouthpiece, the longitudinal section here being angled in the region of the longitudinal central axis of the insert unit,

Fig. 17

the insertion unit Figure 16 in an otherwise angled longitudinal section,

Fig. 18

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

Fig. 19

the insertion unit Figure 16 to 18 in a perspective bottom view of the outflow side of their exploded individual parts,

Fig. 20

the insert unit from the Figures 16 to 19 in a side view of their exploded individual parts,

Fig. 21

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

Fig. 22

the insert unit from the Figures 16 to 21 in a cross-sectional detail view in the in Figure 21 marked area of one of its beam channels,

Fig. 23

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

Fig. 24

the housing parts of the in the Figures 16 to 23 insert unit shown in a first rotational position,

Fig. 25

the housing parts Figure 21 in a second Rotary position,

Fig. 26

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

Fig. 27

the outflow-side second housing part in a perspective top view of the inflow side,

Fig. 28

the outflow-side second housing part in a bottom view on its outflow side, and

Fig. 29

the in the Figures 16 to 28 Insert unit shown in a longitudinal cut in the longitudinal direction in the region of one of the jet channels.

In the Figures 1 to 29 Two versions 1, 1 'of a sanitary inserting unit are shown. As in Figure 2 As shown by way of example, the insert units 1, 1 'can be mounted on the water outlet of a sanitary outlet fitting (not shown here) with the aid of an outlet mouthpiece 28. The insertion units 1, 1 'have a jet regulator 2, 2' on the outflow side, which can optionally choose between two discharge jet images (cf. Fig. 1 , 2nd such as 24, 25 ) is switchable. The insert units 1, 1 'have an inflow-side attachment or filter sieve 3, 3' which has to filter out the lime or dirt particles contained in the inflowing water, which would otherwise settle in the insert units 1, 1 'and could 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 predetermined maximum value independently of pressure, a flow rate controller 4, 4' is arranged here between the front screen or filter screen 3, 3 'and the jet regulator 2, 2'.

In order to be able to switch between two discharge 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 mounted non-rotatably on the water outlet of the sanitary outlet fitting and for this purpose has an outer circumferential ring flange or ring shoulder 29, 29' which can be clamped between an inner circumferential ring shoulder 30 in the outlet mouthpiece 28 and the downstream end edge of the water outlet of the sanitary outlet fitting , a downstream second housing part 6, 6 'is formed at least on its downstream outer circumference as a handle or connected to a handle. In Fig. 2 is indicated by dashed lines as an example that in the outflow-side portion of the second housing part 6 a handle ring 31 can act on the housing outer periphery thereof, which serves as a handle for manual actuation of the jet regulator 2, 2 '. By 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 on its outer circumference so that the second housing part 6, 6' detected there and 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.

Beam channels 9, 9 'spaced apart from one another are provided on the inner circumference of the second housing part 6, with the individual beams coming from the splitting openings 8, 8', for example, in Figure 2 and 4th such as Figure 24 shown rotational position of the housing parts 5, 6; 5 ', 6' through the jet channels 9, 9 'and to an annular circumferential Auslaufstrahlbild be shaped, while the individual beams coming from the splitter openings 8, 8 'in the in the Figures 1 and 3rd such as Figure 25 Rotary position shown inside the jet regulator 2 are deflected to a central outlet opening 10, 10 'of the jet regulator housing.

In order to be able to choose and differentiate between the outflow jet images, one has to choose between the first and the second housing parts 5, 6; 5 ', 6' provided a rotation. 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 cooperates with locking teeth 13, 13', each of which on the channel wall facing the housing interior of the jet regulator housing Beam channels 9, 9 'is formed. The housing parts 5, 6; 5 ', 6' can thus be aligned exactly with respect to one another, so that the flow paths leading to a fixed discharge jet pattern inside the housing interior of the jet regulator housing can be exactly maintained.

From a comparison of the Figures 8 to 10 it is clear that in the insert unit 1 shown there, the section of the channel wall of the jet channels 9 which bears the locking teeth 13 and which faces the housing interior 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 latching recesses 11, 11 'and the latching projections or latching cams 12, 12' of the latching profiling are connected to one another via straight latching flanks, a profiling curve being provided between each latching flank and a latching recess 11, 11 'or an adjacent latching cam 12, 12'. In order to achieve a full, but structurally very simple design, the Locking profiling is designed asymmetrically with respect to their locking recesses 11, 11 'and their locking cams 12, 12'. 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 a radius, a straight flank and then a radius leading to the locking indentation, the locking indentation 11, 11' is designed here as a continuous radius. In order to achieve a clean detent position of the rotary detent, it is provided here that the radii of the profiling curves and the detent cams 13, 13 'roughly match.

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

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

The second housing part 6, 6 'is sleeve-shaped at least in its inflow-side portion. The first and the second housing part 5, 6; 5 ', 6' can be releasably locked together, the first housing part 5, which is integrally connected to the jet splitter 7, 7 ', being inserted into the second housing part 6, 6' in such a way that the cup-shaped first jet splitter sub-area 17, 17 'of the first housing part 5 protrudes into the sleeve interior 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. This inner sleeve 19 is integrally molded into the second housing part 6 in the insert unit 1. The outlet end face of the inner sleeve 19, 19 'which forms the central outlet opening 10, 10' is designed here as a lattice or network structure which is formed by webs 21, 21 'crossing at intersection nodes and delimiting between outlet openings 20, 20'. The webs 21, 21 'of this lattice structure are arranged here such that the outlet openings 20, 20' practically form a honeycomb-like lattice structure.

In the in the Figures 2 and 4th Rotary position of the housing parts 5, 6 shown, the individual jets formed in the splitter 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 splitting openings 8 against the outer channel wall, at least the inner peripheral wall of the splitting openings 8 is oriented obliquely outwards. Each individual jet emerges from the jet channel 9 assigned to it in the bisector of the opposite channel walls, each individual jet after impact is flattened on the inner wall of the housing, thus forming a closed water curtain which practically forms a circumferential ring wall.

In Figure 15 it can be seen that a profile is provided in the outlet-side portion of the jet regulator housing on the inner circumference side, which is formed by indentations and formations 22, 23. In this case, the indentations 22 formed between two adjacent protrusions 23 taper in the outlet direction in such a way that that in the rotational position according to FIG Figure 2 generated spray jet can spread further until it emerges from the jet regulator housing. The indentations and formations 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 an outlet area that widens conically outward is created, which gives the spray jet a direction diverging with respect to the jet regulator's longitudinal axis. The spreading of the spray jet formed from the individual jets is further promoted by the fact that the outlet-side section of the second housing part 6 has a clear housing cross-section widening in the outlet direction and that a sharp tear-off edge is provided on the inner circumference of this outlet-side section.

In the in the Figures 1 and 3rd In the rotational position shown, the water coming from the flow rate regulator 4 is guided radially outward to the splitting openings 8, in order to then be led as individual jets through the free spaces or longitudinal gaps remaining between the jet channels 9, each of which is formed into a radially inward and as a deflection bevel 37 serve rounding, which deflects these individual beams in the direction of the inner sleeve 19. On the inflow side, an insert 24 is inserted into the inner sleeve 19, which has a lattice or network structure has, which is formed from webs crossing at intersection nodes. The rotational position of the housing parts 5, 6 according to the Figures 1 and 3rd 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 the Bernoulli equation, leads to a negative pressure on the outflow side of the jet splitter 7. The negative pressure formed on the outflow side of the jet splitter 7 leads to the fact that ambient air is sucked into the interior of the jet regulator housing via the jet channels 9, which are formed there with the individual jets to form a homogeneous, non-spraying and pearly-soft overall jet. The mixing space formed between the insert part 24 and the downstream end face of the pot-shaped jet splitter section 17 is reduced by the cup-shaped design of the jet splitter 7 in such a way that a comparatively small mixing chamber is formed in which no undesired 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 lattice or network structure of the insert part 24 which is arranged on the outflow side of the mixing chamber and is inserted into the interior of the jet regulator housing.

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

The flow rate regulator 4 can be inserted into the first housing part 5 up to a support 25, 25 '. Since the front screen or filter screen 3, 3 'is detachably connected to the first housing part 5, 5', preferably releasably lockable, the flow rate regulator 4, 4 'downstream of the front screen or filter screen 3, 3' is in the interior of the first housing part 5, 5 'in the area of the jet splitter 7, 7' housed space-saving. 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 on its inside and / or outside circumferential wall a control profile, between which and the elastic throttle body 27, 27' a control gap remains, which narrows under the increasing pressure of the inflowing water in such a way that the per unit time flowing water volume is set to a predetermined maximum value.

Even those in the Figures 16 to 29 The insert unit 1 'shown can be mounted on the water outlet of a sanitary water outlet fitting (not shown here) with the aid of an outlet mouthpiece 28'. The outlet mouthpiece 28 'is formed at least in 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 sections 32 ', 33' of the outlet mouthpiece 28 'which are rotatably connected to one another are each designed in the form of a sleeve, their sleeve interiors merging into one another. The jet regulator 2 'is inserted in the sleeve interior of the outlet mouthpiece 28' and its sections 32 ', 33'.

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

On the inner circumference of the second housing part 6 ', steel channels 9' are provided which are preferably evenly spaced apart from one another in the circumferential direction and which capture the individual jets coming from the splitting 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 splitter 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 FIG 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 network structure and which is intended to serve as a flow straightener which compares the water flowing through. In 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 portion of the peripheral walls surrounding the spray nozzles 35 'is directed obliquely outwards, those which emerge from the spray nozzles 35' become visibly separate Individual jets are deflected obliquely outwards, so that a ring-shaped circumferential discharge jet image is formed which is formed from individual jets flowing away.
In contrast, in the second rotational position of the housing parts 5 ', 6', the individual jets emerging from the splitter openings 8 'are each guided over a deflection bevel 37' which, in this second rotational position, directs the individual jets formed in the splitter openings 8 'radially towards the central outlet opening 10' redirect inwards. One of the deflection slopes 37 'is provided between adjacent beam channels 9'. A fin or fin-shaped flow divider 44 'is provided in each of the deflection bevels 37', which already causes a first division of the inflowing water. The fin-shaped flow dividers 44 'divide the water diverted radially inwards at the deflection slopes 37' into at least two partial streams, the partial streams diverted radially inwards in this way in each case striking the pins 38 'projecting on the outflow side of the jet splitter 7' and there are divided again in such a way that the water flowing through the jet regulator 1 ′ is mixed particularly well with the ambient air. The water mixed with ambient air in this way can then emerge from the jet regulator 2 'as a aerated water jet via the central outlet opening 10'.

As already mentioned in the Figures 1 to 15 Insert unit 1 shown shown, the water guided over the deflection slopes 37 'in the interior of the jet regulator housing is 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 the Bernoulli equation, leads to a negative pressure on the outflow side of the jet splitter 7'. The one on the downstream side of the jet splitter 7 ′ leads to ambient air being sucked into the interior of the jet regulator housing via the spray nozzles 35 ′, which are shaped there with the individual jets to form a homogeneous, non-spraying and pearly-soft overall jet, which flows through the central outlet opening 10 flows out. The good mixing of the ambient air sucked into the housing interior 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 In the rotational position shown, the ambient air sucked in via the spray nozzles 35 'is guided via the air intake ducts of the inflow-side first housing part 5' oriented approximately in the longitudinal extent of the jet regulator 2 ', pocket-shaped recesses 45' being located there on the outflow side of the jet splitter 7 '. From an overall view of the Figures 21, 22 , 26 , 27 and 29 it becomes clear that the splitting 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', excessive splashing of the water striking the deflection slopes 37 'is avoided, which otherwise occurs via the jet channels 9' serving as air intake channels in this rotary position could flow out. In the in Figure 25 Rotational position shown cause these pocket-shaped recesses 45 'a splash guard, which prevents leakage flows from the spray nozzles 35'. With these pocket-shaped recesses 45 ', not only can material savings be made in the production of the housing part 5', but rather these recesses 45 ', which carry the ambient air, also offer an improved one Water splash protection.

In the in the Figures 1 to 29 Exemplary embodiments 1, 1 'shown are provided on the outflow side of the deflection slopes 37, 37' spaced apart pin or web-shaped flow obstacles. The are in the Figures 16 to 28 The jet regulator 1 shown is molded on the outflow side of the cup-shaped jet splitter 7 'on the pot bottom, pins 38', which form such pin-shaped flow obstacles. The water deflected inwards in this rotational position is guided through these spaced-apart pins 38 ′ and thereby additionally decelerated. The pins 38 'taper towards their downstream pin ends and have a rounded pin end. In this case, a central pot base portion 40 'protrudes from the pot base of the pot-shaped jet splitter 7', this pot base of the jet splitter 7 'being designed step-like, at least on its outflow side. Despite this stepped design of the pot base, 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 pot bottom of the pot-shaped jet splitter 7' with the aid of the deflection 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 escaping water into a homogeneous, non-splashing and pearl-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 upstream end opening of the first section 32 'of the outlet mouthpiece 28' until its circumferential annular flange 29 'projecting on the outer circumference rests on a ring shoulder 30' in the sleeve interior of the first section 32 '. The first housing part 5 'is encompassed by a sealing ring 41', the one seals any remaining annular gap between the outer circumference of the first housing part 5 'and the downstream second section 6'. The outer sleeve of the second housing part 6 'is locked in the downstream section 33', the outer sleeve 42 'also holding the inner sleeve 19' between it and the first section 32 '. The jet splitter 7 'has a central support pin 43' on the inside of its pot bottom, which supports the flow rate regulator 4 'with its pin end which is oriented counter to the flow direction.

Reference list

1, 1 '

sanitary inserting unit

2, 2 '

Aerator

3, 3 '

Attachment or filter screen

4, 4 '

Flow regulator

5, 5 '

inflow-side first housing part

6, 6 '

downstream housing part

7, 7 '

Jet splitter

8, 8 '

Cutting openings

9, 9 '

Beam channels

10, 10 '

central outlet opening

11, 11 '

Notch

12, 12 '

Locking cam

13, 13 '

Locking tooth

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 '

Walkways

22

Indentations

23

Formations

24th

Insert

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 bevel

38 '

pencils

40 '

central pot base section

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 3rd

Claims (29)

Jet regulator (2, 2 '), which can optionally be switched between at least two discharge jet images and which, for this purpose, has a jet regulator housing with at least two housing parts (5, 6; 5', 6 ') which can be rotated relative to one another, of which an upstream first housing part (5, 5 ') can be mounted on the water outlet of a sanitary outlet fitting in a rotationally fixed manner and of which a downstream second housing part (6, 6') is designed as a handle or is connected to a handle at least on its outflow-side outer housing periphery, the first housing part (5, 5 ') being one Has jet splitter (7, 7 ') with a plurality of splitting openings (8, 8'), with beam channels (9, 9 ') spaced apart from one another being provided on the inner circumference of the housing of the second housing part (6, 6'), the splitting openings (8, 8 ') 8 ') coming individual jets in a first rotational position of the housing parts (5, 6; 5', 6 ') through the jet channels (9, 9') and formed into a circular discharge jet pattern and in a second rotary position in the interior of the jet regulator (2, 2 ') to a central outlet opening (10, 10') of the jet regulator housing, the jet splitter (7, 7 ') having two jet splitter sections (17, 18) of of which a central first jet splitter section (17, 17 ') is pot-shaped, the central first jet splitter section (17, 17') being connected to a second jet splitter section (18, 18 ') configured as a circumferential ring flange or ring shoulder , and wherein in the second jet splitter section (18, 18 ') the splitting openings (8, 8') are provided, characterized in that the cup-shaped jet splitter (7 ') is spaced apart from one another on the outflow side of its pot base Has pins (38 ') or pins, which form pin-shaped flow obstacles. Jet regulator according to Claim 1, characterized in that deflection bevels (37, 37 ') are provided on the inner circumference of the second housing part (6, 6'), which deflect the individual jets formed in the splitting openings (8, 8 ') in at least a second rotational position of the housing parts (5, 6; 5 ', 6') in the direction of the central outlet opening (10, 10 '). Jet regulator according to claim 1 or 2, characterized in that on the outflow side of the deflection slopes (37, 37 ') spaced apart pin or web-shaped flow obstacles are provided. Jet regulator according to Claims 1 to 3, characterized in that the pins (38 ') or pins preferably taper conically towards their downstream pin or pin end and / or that the pin or pin end of the pins (38') or pin is rounded . Jet regulator according to one of claims 1 to 4, characterized in that a central pot base portion protrudes on the outflow side of the pot bottom of the pot-shaped jet splitter (7 ') and / or that the pot bottom of the pot-shaped jet splitter (7') is designed step-like at least on its outflow side. Jet regulator according to one of claims 1 to 5, characterized in that the pin or pin ends of the pins (38 ') or pin are arranged approximately in one plane. Jet regulator according to one of Claims 1 to 6, characterized in that spray nozzles (35 ') are connected downstream of the jet channels (9') in the direction of flow and that the spray nozzles (35 ') preferably open into the outlet-side section of the jet regulator housing. Jet regulator according to claim 7, characterized in that between the jet channels (9, 9 ') and the spray nozzles (35') at least one ring insert (36 ') is provided which has a lattice or network structure. Jet regulator according to claim 8, characterized in that the lattice structure of the ring insert (36 ') is formed by preferably radial webs which limit flow holes between them. Jet regulator according to one of claims 7 to 9, characterized in that at least one inner portion of the peripheral walls surrounding the spray nozzles (35 ') is directed obliquely outwards. Jet regulator according to claim 10, characterized in that the splitting openings (8, 8 ') are arranged uniformly distributed over the second jet splitter sub-area (18, 18'). Jet regulator according to claim 10 or 11, characterized in that the cup-shaped first jet splitter sub-area (17, 17 ') is designed without holes. Jet regulator according to one of Claims 1 to 12, characterized in that the jet splitter (7, 7 ') is connected in one piece to the inflow-side first housing part (5, 5'). Flow regulator according to one of claims 1 to 13, characterized in that the second housing part (6, 6 ') is sleeve-shaped at least in its inflow-side portion. Flow regulator according to one of claims 1 to 14, characterized in that the first and the second housing part (5, 6; 5 ', 6') are releasably connectable, preferably releasably latched together. Jet regulator according to one of claims 1 to 15, characterized in that the cup-shaped first jet splitter portion (17, 17 ') protrudes into the sleeve interior of the second housing part (6, 6'). Jet regulator according to one of claims 1 to 16, characterized in 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 '). Jet regulator according to claim 17, characterized in that the inner sleeve (19) is integrally molded in the second housing part (6). Jet regulator according to claim 17 or 18, characterized in that the outlet end face of the inner sleeve (19, 19 ') forming the central outlet opening (10, 10') is designed as a lattice or network structure which is formed by outlet openings (intersecting at intersection nodes and between them). 20, 20 ') defining webs (21, 21'). Jet regulator according to one of claims 1 to 19, characterized in that the individual jets formed in the splitting openings (8, 8 ') in at least one first Rotational position of the housing parts (5, 6; 5 ', 6') are guided against the outer channel wall of the jet channels (9, 9 ') and that for this purpose at least one of the channel walls of the splitter openings and preferably an inner channel wall of the splitter openings (8, 8') is oriented obliquely outwards with respect to the jet regulator longitudinal axis. Jet regulator according to one of claims 17 to 20, characterized in that the jet channels (9) are arranged in an annular gap between the outer periphery of the inner sleeve (19) and the housing inner periphery of the jet regulator housing. Jet regulator according to one of claims 1 to 21, characterized in that the jet channels (9, 9 ') open into a discharge area of the jet regulator housing and that this discharge area has a clear housing cross section which widens in the discharge direction. Jet regulator according to Claim 22, characterized in that a profiling is provided in the outlet-side partial area of the jet regulator housing on the inner circumference side, which is formed by indentations and projections (22, 23) oriented in the flow direction. Jet regulator according to claim 22 or 23, characterized in that the jet regulator housing has a tear-off edge on the inner circumference of its outlet-side partial area. Jet regulator according to one of claims 1 to 24, characterized in that the steel controller (2, 2 ') is part of a sanitary insert unit (1, 1') and that the jet controller (2, 2 ') is a flow rate controller (4, 4' ) or a flow restrictor is connected upstream. Jet regulator according to Claim 25, characterized in that the flow rate regulator (4, 4 ') or the flow restrictor can be inserted into the first housing part (5, 5') up to a support (25, 25 '). Jet regulator according to claim 25 or 26, characterized in that the flow rate regulator (4, 4 ') or the flow restrictor is preceded by an attachment or filter sieve (3, 3') which is preferably releasably fixable on the first housing part (5, 5 ') . 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 deflection slope, which divides at least one flow divider (44') the water flowing along the deflection slope (37 ') into partial flows. Jet regulator according to claim 28, characterized in that the at least one flow divider (44 ') projects in a fin shape over the at least one deflection slope (37').

Images