WO2011154063A1

WO2011154063A1 - Jet regulator

Info

Publication number: WO2011154063A1
Application number: PCT/EP2011/001231
Authority: WO
Inventors: Alexander Stein
Original assignee: Neoperl Gmbh
Priority date: 2010-06-12
Filing date: 2011-03-12
Publication date: 2011-12-15
Also published as: US20130082122A1; EP2580399A1; DE202010009023U1

Abstract

The invention relates to a jet regulator (1) having a jet regulator housing (4) comprising a housing part (5) having a sleeve-shaped housing wall (7), the sleeve interior of said housing part (5) being integrally connected to a flow interrupter (8) oriented transverse to the flow direction and comprising a plurality of flow-through openings (9) for dividing the inflowing water flow into a plurality of individual streams, a screen (11) being releasably supported in the sub-region (10) of the sleeve interior separated by the flow interrupter (9) on the inflow side. The jet regulator (1) according to the invention is characterized in that an external thread (12) is provided on the external circumference of the section (7) of the housing wall (7) bounding the inflow side sub-region (10) of the sleeve interior. Said external thread (12) is provided in a section of the jet regulator housing (4) that is not particularly exposed to the water pressure and therefore can be designed having relatively thin walls, and in which no further insertion parts that could further constrict the flow-through cross-section are to be received as a rule in the jet regulator housing (4).

Description

aerator

The invention relates to a jet regulator with a jet regulator housing, which has a housing part with a sleeve-shaped housing wall, which housing part in its sleeve interior with a transverse to. Flow-oriented beam splitter is integrally connected, which has a plurality of flow openings for dividing the inflowing water flow into a plurality of individual jets.

Jet regulators are already known in various designs. Such jet regulators are mounted on the outlet end of a sanitary outlet fitting in order to produce a homogeneous, non-spraying and, if necessary, even soft-sparkling water jet.

So we already know a jet regulator of the type mentioned, which has a jet regulator housing with an inflow-side first and a downstream second housing part. The detachably connectable housing parts have a sleeve-shaped housing wall. In this case, the inflow-side first housing part is integrally connected in its sleeve interior with a beam splitter oriented transversely to the flow direction, which has a plurality of flow openings which divide the inflowing water flow into a corresponding plurality of individual jets. In the divided by the jet splitter and slightly beyond the jet splitter plane protruding inflow portion of the sleeve interior a front screen is releasably held, which should retain the possibly entrained by the water dirt particles before Otherwise, these dirt particles could lead to dysfunctional deposits inside the jet regulator. The previously known aerator can be used up to a first housing part on the outside protruding annular flange in an outlet nozzle, which can be detachably mounted by means of a screw at the outlet end of a sanitary outlet fitting.

However, such an outlet mouthpiece must be made with considerable effort separate from the outlet fitting, but finished in the same color. Regardless, such an outlet nozzle is always recognizable as a separate component by a circumferential annular gap, in which dirt can accumulate.

It has therefore also created aerator, which carry on the outer circumference of the jet regulator housing an external thread which can be screwed into an internal thread on the inner circumference of the outlet fitting, such that the jet regulator is almost completely disposed in the outlet end of the sanitary outlet fitting.

The disadvantage, however, is that in the outlet end of a sanitary outlet fitting mountable jet regulators the external thread, the housing peripheral wall and optionally also the peripheral walls of insertable into the jet regulator insert parts are to be accommodated on a comparatively small cross-section, so that narrows the flow cross-section of such beam regulators such in that the outside diameter of the outgoing water jet appears to be disproportionately small in comparison with the much larger outside diameter of the jet regulator housing. Due to the significant difference in the outer dimensions of the water jet on the one hand to the fitting outlet end on the other hand is particularly at high-quality outlet fittings, the aesthetics were seriously disturbed.

There is therefore in particular the task of creating a jet regulator of the type mentioned, which is releasably mounted in the outlet end of a sanitary outlet fitting and which is still characterized in comparison to the outer dimensions of the jet regulator by a large flow cross-section.

The solution to this problem according to the invention in the case of the jet regulator of the type mentioned in the introduction is in particular that an outer thread is provided on the outer peripheral side on the section of the housing wall bounding the inflow-side subregion of the sleeve interior. The jet regulator according to the invention has a single-part or multi-part jet regulator housing with at least one housing part. The at least one housing part, which has a sleeve-shaped housing wall, is in _. its sleeve interior integrally connected to a transverse to the flow direction beam splitter having a plurality of flow openings, which divide the inflowing water flow into a plurality of individual jets. At the portion of the housing wall bounding the inflow-side portion of the sleeve interior, an external thread is provided on the outer peripheral side, with which the jet regulator according to the invention can be detachably fastened to an internal thread provided on the inner circumference of the outlet fitting. This external thread is provided in a section of the jet regulator housing, which can be made comparatively thin-walled.

It may be expedient if, in the inflow-side partial region of the sleeve interior, which is divided off by the jet splitter, a front screen and / or a flow regulator, in particular is kept detachable.

In this case, a preferred development according to the invention provides that the inflow-side portion of the sleeve interior is dimensioned for complete reception of the attachment screen and / or the flow rate control, such that the inflow-side end peripheral edge of the jet regulator housing the inflow end of the jet regulator and attachment screen and / or Flow regulator forms existing unit. In this further embodiment, the external thread can be arranged in a section of the housing wall projecting on the inflow side above the jet splitter.

It is expedient for the jet regulator to have at least one axial and / or at least one radial annular seal for sealing the intermediate space provided between the jet regulator outer circumference and the inner circumference of a sanitary outlet fitting. In order that the gap remaining between the jet regulator outer circumference and the inner circumference of the discharge fitting can not pass any unwanted creepage currents affecting the spray pattern, at least one axialeu_nd, _ _ Qjdejr "w_englg _I s_t_e. s. one, radial Ringdich.t.ung. intended

In an embodiment according to the invention it is provided that on the outer circumference of the regulator housing at least one groove for

Receiving a preferably radially acting sealing ring is arranged. In addition or instead, a sealing ring may be provided for the axial sealing, which seals between the jet regulator and an annular shoulder provided on the inner circumference of a sanitary outlet fitting.

Another embodiment according to the invention provides that the axially effective sealing ring on the inflow-side Stirnum- Rim edge of the jet regulator rests. Instead, it may also be expedient if the axially effective sealing ring is supported in the inflow-side sleeve interior and projects beyond the inflow-side end peripheral edge of the jet regulator housing.

In order to be able to release the screw connection between the jet regulator and the outlet fitting, it is advantageous if at least one tool engagement surface for a turning tool is provided on the downstream end edge and / or on the outer circumference of the jet regulator housing and / or on the downstream face of the jet regulator housing.

In this case, an embodiment which can be produced with little effort and which is particularly advantageous according to the invention provides that preferably uniformly spaced housing formations are provided on the outer circumference of the jet regulator housing, which serve as tool engagement surfaces for a turning tool. It is also possible to provide on the downstream end face of the jet regulator housing, for example, a slot-like tool engagement surface into which a coin serving as a rotary tool with its narrow peripheral edge can be used screwdriver similar. Further features of the invention will become apparent from the claims and the description taken in conjunction with the drawings. The invention will be described in more detail below with reference to preferred embodiments. It shows:

1 a in a partial longitudinal section according to the sectional plane II of Figure 2 illustrated jet regulator, whose jet regulator housing has an inflow-side housing part with a sleeve-shaped housing wall, which inflow-side housing part is integrally connected in its sleeve interior with a jet divider oriented transversely to the flow direction, which divides an inflow-side partial area of the sleeve interior, wherein the housing area adjoins the inflow-side partial area

Housing is provided on the outer peripheral side, an external thread, and wherein between the jet regulator and a provided on the inner circumference of the outlet fitting annular shoulder a not shown in Figure 1 is clamped sealing ring, Fig. 2 the jet regulator of Figure 1 in a plan view of his Zuströmstirnseite,

Fig. 3 the with the outer peripheral side provided external thread in an internal thread at the outlet end of a sanitary outlet fitting mounted jet regulator

Figures 1 and 2 immediately before the attachment of a likewise shown, but separately shown rotary tool, Fig. 4 at the outlet end of a sanitary outlet fitting releasably mounted jet regulator of Figure 1 to 3 in a partial longitudinal section, the rotary tool for rotating the jet regulator in the outlet end already is attached to the jet regulator,

5 shows the jet regulator from FIGS. 1 to 4 in a detail longitudinal section in the area between the jet regulator and the inner circumference of the outlet fitting. seen ring heel arranged ring seal,

Fig. 6, the outlet end of the sanitary outlet fitting, the

Jet regulator of Figures 1 to 5 and the associated rotary tool in a longitudinally cut and exploded view,

7 shows a jet regulator comparable to FIGS. 1 to 6 in an embodiment in which a radially effective annular seal is inserted into an annular groove provided on the outer circumferential side of the jet regulator housing,

8 shows the jet regulator from FIG. 7 in a plan view of its inflow face, FIG.

9 shows the mounted in the outlet end of a sanitary outlet fitting jet regulator of Figure 7 and 8 immediately before the attachment of a likewise shown, but separately shown rotary tool,

10 shows the jet regulator of FIGS. 7 to 9, which is detachably mounted at the outlet end of a sanitary outlet fitting, in a partial longitudinal section, wherein the rotary tool is already attached to the jet regulator for rotating the jet regulator located in the outlet end;

Fig. 11, the outlet end of the sanitary outlet fitting, the

Jet regulator of Figures 7 to 10 and the associated rotary tool in a longitudinally cut and exploded view,

FIG. 7 shows the jet regulator from FIGS. 7 to 11 in a cross section through sectional plane XII-XII in FIG. 7, FIG. 13 shows the jet regulator from FIGS. 7 to 12 in a perspective view of its outlet end face, wherein the front side partially broken view releases the view of the downstream side of a jet breaker designed as a perforated plate,

14 shows an embodiment comparable with the jet regulators from FIGS. 1 to 13, in which an axially effective sealing ring is supported in the inlet-side sleeve interior and projects beyond the inflow-side end peripheral edge of the jet regulator housing, in a partial longitudinal section in the sectional plane XIV-XIV FIG. 15

FIG. 15 shows the jet regulator from FIG. 14 in a plan view of its inlet end face,

16 shows the jet with the outside circumference provided in an internal thread at the outlet end of a sanitary outlet fitting of Figure 14 and 15 immediately before attaching a separately shown rotary tool, Fig. 17 at the outlet end of a sanitary outlet fitting by means of a screw detachably mounted jet regulator from Figures 14 to 16 in a partial longitudinal section, wherein the rotary tool for rotating the jet regulator is already attached to the jet regulator,

Fig. The jet regulator of Figure 14 to 17 in a detail longitudinal section in the region of the sealing ring, located in the is supported on the upstream sleeve inner space and on the inflow-side end peripheral edge of the

Projection of the jet regulator housing, and

Fig. 19, the outlet end of the sanitary outlet fitting, the

Jet regulator of Figures 14 to 18 and the associated rotary tool in a partially-längsgeschnit-, exploded view.

In the figures 1 to 19, a jet regulator 1 is shown in three different embodiments. The jet regulator 1, which can be mounted at the outlet end 2 of a sanitary outlet fitting 3 in order to form a homogeneous, non-spraying and possibly also soft-water jet, has a jet regulator housing 4, which is designed in several parts here. The jet regulator housing 4 has an inlet-side and a downstream-side housing part 5, 6, which can be locked together or otherwise detachably connected to one another. The inflow-side housing part 5 has a sleeve-shaped housing wall 7. The housing part 5 is integrally connected in its sleeve interior with a transverse to the flow direction jet splitter 8. This jet splitter 8, which is designed here as a perforated plate, but could also be designed as a diffuser, has a plurality of flow openings 9, which are to divide the inflowing water flow into a plurality of individual jets, such that on the downstream side of the jet breaker 8, a negative pressure arises, which serves for the intake of ambient air and for aerating the water flow flowing through. In the divided from the jet splitter 8 inflow side portion 10 of the sleeve interior a front screen 11 is releasably held.

From a comparison of the illustrated in Figures 1 to 19 Embodiment variants it becomes clear that an external thread 12 is provided on the outer peripheral side at the section 7 of the housing wall 7 bounding the inflow-side partial area 10 of the sleeve interior. This external thread 12 begins immediately below the inflow-side end edge 13 of the jet regulator housing 4. With the external thread 12, the jet regulator 1 can be detachably fastened to an internal thread 14 provided on the inner circumference of the outlet fitting 3. In this case, the external thread 12 is provided in a section of the jet regulator housing 4, which can be made comparatively thin-walled. In this case, the inflow-side subregion 10 of the sleeve interior is intended for complete reception of the conical front screen 11, such that the inflow-side end peripheral edge 13 of the jet regulator housing 4 forms the upstream end of the unit consisting of the jet regulator 1 and the front screen 11.

A comparison of the embodiments shown in Figures 1 to 19 shows that the jet regulator 1 for sealing the space provided between the jet outer periphery and the inner periphery of the sanitary outlet fitting 3 has axial or radial annular seals, which optionally can be optionally used. In this case, a groove 16 for receiving a radially effective sealing ring 17 is provided on the outer circumference of the jet regulator housing 4. While the embodiments shown in Figures 1 to 6 and 12 to 17 do not wear such a sealing ring 17 in the groove 16, a sealing ring 17 is inserted into the groove 16 in the embodiment shown in Figure 7 to 11, which is to seal radially. In this case, the groove 16 is provided above the jet separator 8 in the separated section 7 'of the housing 7.

In the embodiments shown in FIGS. 1 to 6 and 14 to 19 For axial sealing, a sealing ring 18 or 19 is provided, which seals between the jet regulator 1 and an annular shoulder 20 provided on the inner circumference of the sanitary outlet fitting 3. Since such an annular shoulder is missing in the outlet fitting 3 shown in FIGS. 9 to 11, the jet regulator illustrated in FIGS. 7 to 13 is dependent on a radial seal. In the embodiment shown in Figures 1 to 6, the axially effective sealing ring 18 rests on the inflow-side end peripheral edge 13 of the jet regulator housing 4 and is clamped between the end peripheral edge 13 and the annular shoulder 20.

In contrast, in the embodiment shown in Figures 14 to 19, a sealing ring 19 is provided for axial sealing, which is supported in the inflow side portion 10 of the sleeve interior and the on the inflow side

Front peripheral edge 13 of the jet regulator housing 4 protrudes.

It is also clear from a comparison of the jet regulator embodiments shown in FIGS. 1 and 7 that the partial region of the housing interior provided between the jet splitter 8 and the auxiliary sieve 11 can be dimensioned such that, if required, a flow rate shown in FIG. can be interposed, the volume of water flowing through per unit time to a set value regardless of the regional and / or current existing

To limit and regulate water pressure.

In FIGS. 3, 4, 6, 9 to 11 and 16, 17 and 19 it is clear that at least one tool engagement surface for a rotary tool 21 is provided on the outer circumference of the jet regulator housing 4. For this purpose, 4 equally spaced housing-shaped formations 22 are provided on the outer circumference of the jet regulator housing, which are used as tool engagement surfaces for the Rotary tool 21 serve. The rotary tool 21, which has a sleeve-shaped portion, has at the end edge region of this sleeve-shaped portion or on the inner circumference recesses 23, in which the housing-formations 22, which surround the ventilation openings 31 in the jet regulator housing 4 and in particular in the housing part 6, and in which the housing formations 22 can engage during the rotation of the jet regulator 1. In order to be able to transfer the force applied to the housing part 6 by means of the rotary tool 21 on the external thread 12 bearing housing part 5, the housing parts 5, 6 rotatably connected to each other. Although such a rotationally fixed connection can also be achieved by welding the housing parts 5, 6, the embodiment shown in more detail in FIGS. 12 and 13, in which the housing parts 5, 6 are connected in a rotationally fixed, yet detachable manner, is preferred. From Figures 12 and 13 it is clear that on the one housing part 5 may protrude anti-rotation elements 32 which are brought into cooperating anti-rotation recesses 33 by releasably locking the housing parts 5, 6 in engagement.

While the anti-rotation elements 32 provided on the housing part 5 each have a dovetail spring on the outside, the anti-rotation recesses 33 arranged on the inner circumference of the housing part 6 and configured in the region of the housing formations 22 are each designed here as a dovetail-shaped groove.

The latching of the housing parts 5, 6, which is shown in greater detail in FIGS. 12 and 13 and is also effective in the circumferential direction, is important in order to ensure a torsional rigidity of the two housing parts 5, 6 to accomplish, which is required when the rotary tool engages the downstream housing part 6 and here, for example, to the housing-shaped portions 22 to solve the jet regulator 1 in an outlet fitting or fasten.

In contrast, is shown in more detail in Figures 16, 17 and 1, that the rotary tool 21 with its provided at the end edge region recesses 23 on the outer periphery of the housing part 5 projecting and nose-shaped housing formations 22 'can attack, so that the torque transmission from the rotary tool 21 can be done directly on the external thread 12 via the housing part 6, whereby a welding of the housing parts 5, 6 or the latching described above with reference to FIGS 12 and 13 with circumferential torsional stiffness due to the tongue and groove positioning is not required.

The embodiments described above show that various systems are possible in order to assemble and dismantle the jet regulator 1 at the sanitary outlet fitting by means of a turning tool 21. For example, while the embodiment shown in Figures 16, 17 and 19 provides for the engagement of the rotary tool 21 directly on the housing part 5, engages the rotary tool in the embodiment shown in Figures 12 and 13 to the housing-shaped formations 22 on the outer circumference of the housing part 6.

It is a particular advantage of the jet regulator embodiments shown here that the housing parts 5, 6 and the outer circumference provided thereon elements and in particular the housing wall of the housing part 6 are axially pulled apart such that provided on the outer circumference of the housing part 6 and here rib-shaped housing formations 22nd . which hold the housing wall of the housing part 6 from the fitting inner circumference at a distance such that a ventilation channel leading to the ventilation openings 31 can form, can rest directly on the fitting inner circumference of the outlet fitting. Due to the axially exploded construction of the jet regulator embodiments shown here, the water outlet and thus the outer circumference of the exiting water jet is increased in comparison to the clear inner dimension of the outlet fitting, resulting in a much more shapely overall appearance of outlet fitting and exiting water jet, since only comparatively small differences in diameter between the exiting water jet on the one hand and the valve outlet on the other hand occur.

/ Claims

Claims

claims

1. jet regulator (1) with a jet regulator housing (4) having a housing part (5) with a sleeve-shaped housing wall (7), which housing part (5) in his

Sleeve interior with a transverse to the flow direction oriented jet splitter (8) is integrally connected, which has a plurality of flow openings (9) for dividing the inflowing water flow into a plurality of individual jets, characterized in that on the inflow-side portion (10) of the sleeve Nose space defining portion (7 ') of the housing (7) on the outer peripheral side, an external thread (12) is provided.

2. jet regulator according to claim 1, characterized in that in the from the jet splitter (8) divided inflow side portion (10) of the sleeve interior a front screen (11) and / or a flow regulator (30) is in particular releasably held.

3. jet regulator according to claim 1 or 2, characterized in that the inflow-side portion (10) of the sleeve interior for fully receiving the attachment sieve (11) and / or the flow rate regulator (30) is dimensioned such that the inflow-side end peripheral edge (13 ) of the jet regulator housing (4) forms the upstream end of the unit consisting of jet regulator (1) and front screen (11) and / or flow regulator (30).

4. jet regulator according to one of claims 1 to 3, characterized in that the jet regulator (1) for sealing of the intermediate space provided between the jet regulator outer circumference and the inner circumference of a sanitary outlet fitting has at least one axial and / or at least one radial ring seal (17, 18, 19).

5. jet regulator according to one of claims 1 to 4, characterized in that on the outer circumference of the jet regulator housing (4) at least one groove (16) for receiving a preferably radially effective sealing ring (17) is provided.

6. jet regulator according to one of claims 1 to 5, characterized in that for axial sealing a sealing ring (18 19) is provided, between the jet regulator (1) and one on the inner circumference of a sanitary outlet fitting

(3) provided annular shoulder (20) seals.

7. jet regulator according to one of claims 1 to 6, characterized in that the axially effective sealing ring (18) on the inflow-side end peripheral edge (13) of the

Radiation regulator housing (4) rests.

8. jet regulator according to one of claims 1 to 7, characterized in that the axially effective sealing ring (18) is supported in the inflow-side sleeve interior and on the inflow-side end peripheral edge (13) of the

Jet regulator housing (4) protrudes.

9. jet regulator according to one of claims 1 to 8, characterized in that at the downstream end edge and / or on the outer circumference of the jet regulator housing (4) and / or on the downstream end face of the jet regulator housing

(4) at least one tool engagement surface for a Turning tool (21) is provided.

Flow regulator according to one of claims 1 to 9, characterized in that on the outer circumference of the jet regulator housing (4) preferably uniformly spaced apart spaced apart housing formations (22, 22 ') are provided which serve as tool engagement surfaces for a turning tool (21).