Sanitary installation part

Abstract

A sanitary fixture is provided having an upstream end and a downstream end, the sanitary fixture includes a mounting housing having a thread which is matingly engagable with a thread provided on a water outlet of a sanitary outlet fitting. The mounting housing has a downstream housing end side with flow-through holes. At least one insertion part can be inserted into the mounting housing as far as an insertion stop. The fixture includes an aerated jet regulator which is configured such that a circumferential wall of the mounting housing includes at least one aeration duct at least in a subregion of at least a double-walled configuration. The at least one aeration duct, which is arranged towards the downstream housing end side, opens out in at least one aeration opening leading into a housing interior of the mounting housing.

Claims

1. A sanitary fixture (1, 2, 4, 5, 6, 7), having an upstream end and a downstream end, the sanitary fixture (1, 2, 4, 5, 6, 7) comprising a mounting housing (9) having a thread (10) which is matingly engagable with a thread (11) provided on a water outlet (70) of a sanitary outlet fitting (8), wherein the mounting housing (9) has a downstream housing end side (12) with flow-through holes (13), and wherein a jet regulator (16) is insertable into the mounting housing (9) as far as an insertion stop, the fixture (1, 2, 4, 5, 6, 7) comprises an aerated jet regulator which is configured such that a circumferential wall of the mounting housing (9) comprises at least one aeration duct (14), which is arranged towards the downstream housing end side (12), adjacent the thread (10) of the mounting housing (9), the aeration duct (14) opens out in at least one aeration opening (15) leading into a housing interior of the mounting housing (9).

2. The fixture according to claim 1, further comprising a throughflow regulator (34) which is connected to and is upstream of the jet regulator (16).

3. The fixture according to claim 2, wherein the jet regulator (16) comprises a diffuser (23) and a diffuser ring (26), and wherein the throughflow regulator (34) has an outermost periphery which is secured within an outer periphery of the diffuser (23).

4. The fixture according to claim 3, wherein an outermost periphery of the diffuser (23) is secured to an outer periphery of the diffuser ring (26).

5. The fixture according to claim 2, further comprising a sieve (38), connected upstream of the throughflow regulator (34) in the flow direction.

6. The fixture according to claim 3, wherein the diffuser ring (26) is insertable into the mounting housing (9) as far as the insertion stop (31), and wherein the diffuser (23), is insertable into the diffuser ring (26) as far as an insertion stop (32) of the diffuser ring (26).

7. The fixture according to claim 1, wherein the thread (10) provided on the mounting housing (9) is an external thread which is arranged on an outer circumference of the housing (9) and interacts with an internal thread (11) which is located on an inner circumference of the water outlet (70) provided in the form of a mating thread (11).

8. The fixture according to claim 1, wherein the downstream housing end side (12) comprises tool engagement surfaces for a rotation tool which can matingly engage with the tool engagement surfaces.

9. The fixture according to claim 1, further comprising an annular seal (33) for axial sealing between the fixture and an annular step located in the water outlet (7).

10. A sanitary fixture (1, 2, 4, 5, 6, 7), having an upstream end and a downstream end, the sanitary fixture (1, 2, 4, 5, 6, 7) comprising a mounting housing (9) having a thread (10) which is matingly engagable with a thread (11) provided on a water outlet (70) of a sanitary outlet fitting (8), wherein the mounting housing (9) has a downstream housing end side (12) with flow-through holes (13), and wherein a jet regulator (16) is insertable into the mounting housing (9) as far as an insertion stop, the fixture (1, 2, 4, 5, 6, 7) comprises an aerated jet regulator which is configured such that a circumferential wall of the mounting housing (9) comprises at least one aeration duct (14), which is arranged towards the downstream housing end side (12), adjacent the thread (10) of the mounting housing (9), at a double walled portion of the mounting housing (9), the aeration duct (14) opens out in at least one aeration opening (15) leading into a housing interior of the mounting housing (9).

11. The fixture according to claim 10, wherein the at least one aeration duct (14) is defined between an inner circumferential wall (18) and an outer circumferential wall (17) of the mounting housing (9).

12. The fixture according to claim 10, wherein the thread (10) provided on the mounting housing (9) is an external thread which is arranged on an outer circumference of the housing (9) and interacts with an internal thread (11) which is located on an inner circumference of the water outlet (70) provided in the form of a mating thread (11).

13. The fixture according to claim 10, wherein the downstream housing end side (12) comprises tool engagement surfaces for a rotation tool which can matingly engage with the tool engagement surfaces.

14. The fixture according to claim 10, further comprising a throughflow regulator (34) which is connected to and is upstream of the jet regulator (16) and a sieve (38) connected upstream of the throughflow regulator (34) in the flow direction.

15. The fixture according to claim 10, further comprising an annular seal (33) for axial sealing between the fixture and an annular step located in the water outlet (7).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) In the drawings:

(2) FIG. 1 shows a sanitary fixture, which is illustrated in a longitudinal section (in the sectional plane I-I according to FIG. 3), with a mounting housing which bears, on the outer circumference thereof, an external thread which can be screwed into an internal thread in the water outlet of a sanitary outlet fitting, wherein a diffuser which serves as a jet splitter and around which a diffuser ring, which is comparatively short here, engages can be inserted into the mounting housing,

(3) FIG. 2 shows the fixture from FIG. 1 in a top view of the outlet end side thereof,

(4) FIG. 3 shows the fixture from FIGS. 1 and 2 in a top view of the inflow end side thereof, wherein the perforated area of an ancillary sieve which can be latched releasably to the inflow end side can readily be seen,

(5) FIG. 4 shows the fixture from FIGS. 1 to 3 in a perspective top view of the outlet end side thereof,

(6) FIG. 5 shows the fixture from FIGS. 1 to 4 in an extended perspective illustration of the individual parts,

(7) FIG. 6 shows the fixture from FIGS. 1 to 5 in a perspective partial longitudinal section,

(8) FIG. 7 shows a sanitary fixture which is comparable to FIGS. 1 to 6 and likewise has an aerated jet regulator and with a diffuser ring which reaches here approximately as far as the downstream end side of the diffuser,

(9) FIG. 8 shows the fixture from FIG. 7 in a top view of the outlet end side thereof,

(10) FIG. 9 shows the fixture from FIGS. 7 and 8 in a top view of the inflow end side,

(11) FIG. 10 shows the fixture from FIGS. 7 to 9 in a perspective top view of the outlet end side,

(12) FIG. 11 shows the fixture from FIGS. 7 to 10 in a perspective illustration of the individual parts,

(13) FIG. 12 shows the fixture from FIGS. 7 to 11 in a perspective partial longitudinal section,

(14) FIG. 13 shows an aerated jet regulator of a conventional type, which can be fitted to the water outlet of a sanitary outlet fitting with the aid of a separate outlet mouthpiece,

(15) FIG. 14 shows a fixture which is comparable to FIGS. 1 to 12 and is screwed into the water outlet of the outlet fitting shown in FIG. 13, wherein the external thread, which is provided on the mounting housing of the fixture, is screwed into the internal thread which is provided in FIG. 13 for screwing to the outlet mouthpiece,

(16) FIG. 15 shows a fixture comparable to FIGS. 1 to 12 and 14, in a longitudinal section, on the mounting housing of which a downstream housing end side is integrally formed, said housing end side having a radially oriented slot, the slot longitudinal sides of which serve as a rotation engagement surface, for example, for a coin which is introduced into the slot and is used as a rotation tool,

(17) FIG. 16 shows the fixture from FIG. 15 in a top view of the outlet end side thereof,

(18) FIG. 17 shows the fixture from FIGS. 15 and 16 in a top view of the inflow end side thereof,

(19) FIG. 18 shows the fixture from FIGS. 15 to 17 in a perspective side view,

(20) FIG. 19 shows the fixture from FIGS. 15 to 18 in a perspective illustration of the individual parts,

(21) FIG. 20 shows the fixture from FIGS. 15 to 19 in a perspective partial longitudinal section,

(22) FIG. 21 shows a fixture which is comparable to FIGS. 15 to 20 and which has, on the downstream housing end side of the mounting housing thereof, two slots which intersect at right angles and form a cross recess,

(23) FIG. 22 shows the fixture from FIG. 21 in a top view of the outlet end side thereof,

(24) FIG. 23 shows the fixture from FIGS. 21 and 22 in a top view of the inflow end side thereof,

(25) FIG. 24 shows the fixture from FIGS. 21 to 23 in a perspective top view of the outlet end side thereof,

(26) FIG. 25 shows the fixture from FIGS. 21 to 24 in a perspective illustration of the individual parts,

(27) FIG. 26 shows the fixture from FIGS. 21 to 25 in a perspective partial longitudinal section, and

(28) FIG. 27 shows a fixture which is designed as a jet regulator and is comparable to the fixture in FIGS. 15 to 20, in a longitudinal section, wherein the jet regulator here has a jet splitter which is designed as a perforated plate which has a multiplicity of axial flow-through holes in order to divide the inflowing water into a corresponding number of individual jets.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(29) FIGS. 1 to 12 and 14 to 27 illustrate various embodiments 1, 2, 4, 5, 6 and 7 of a sanitary fixture. The fixtures 1, 2, 4, 5, 6 and 7 illustrated here can be fitted to the water outlet 70 of a sanitary outlet fitting 8 (otherwise not shown further here). The fixtures 1, 2, 4, 5, 6 and 7 have a mounting housing 9 which has an external thread 10 on the outer circumference thereof. The external thread 10 is intended for screwing into an internal thread 11 which is provided on the inner circumference of the water outlet 70 of the sanitary outlet fitting 8 (cf. FIG. 14). The mounting housing 9 has a downstream housing end side 12 with flow-through holes 13.

(30) The circumferential wall of the mounting housing 9 of the fixtures 1, 2, 4, 5, 6 and 7 illustrated here bounds an annularly encircling aeration duct 14 in a subregion of double-walled configuration. Said aeration duct 14, which is open towards the downstream housing end side 12, which is at the bottom in the figures, opens out in a plurality of aeration openings 15 which are distributed uniformly over the housing circumference and lead into the interior of the mounting housing 9. The aeration duct 14 and the aeration openings 15 are part of a jet regulator 16, a jet aerator, which is integrated in the fixtures 1, 2, 4, 5 and 6. By contrast, the fixture 7 is itself configured as a jet regulator.

(31) The mounting housing 9 of the fixtures 1, 2, 4, 5, 6 and 7 has, in the downstream housing section thereof, an outer housing wall 17 and an inner housing wall 18 which is spaced apart therefrom by the aeration duct 14, of which housing walls the inner housing wall 18 protrudes over the outer housing wall 17 and forms the downstream housing end border. The outer housing wall 17 bears at least one subsection of the external thread 10. The inner and the outer housing walls 17, 18 are connected to each other via radial webs 19, wherein the webs 19 are provided as a rotation or tool engagement surface for a rotation tool which can be introduced into the clearance between the webs 19.

(32) Since, however, a special rotation tool of this type is not always available, in particular in a private household, the downstream housing end side 12 of the fixtures 5, 6 and 7 illustrated in FIGS. 15 to 27 has at least one slot 20, 21, the opposite slot longitudinal sides of which are configured as rotation or tool engagement surfaces for a rotation tool which can be inserted releasably into the at least one slot 20 or 21. A screwdriver, but preferably also a coin, can serve as the rotation tool. So that a higher torque can also be transmitted with the aid of the rotation tool which can be introduced into the slot 20, 21, the downstream housing end side 12 is convexly or spherically curved in the downstream direction, and therefore the slot longitudinal sides are preferably configured to be deep without the housing end side 12 substantially restricting the space available in the housing interior. There is therefore sufficient space in the housing interior in order to provide further insertion parts or flow-shaping parts 47, 48 therein (cf. FIG. 27). Whereas the jet regulator 5 according to FIGS. 15 to 20 bears only one approximately radially oriented slot 20 on the housing end side thereof, two radially oriented slots 20, 21 which are arranged at right angles to each other and form a cross recess here are provided on the housing end side 12 of the fixture 6 shown in FIGS. 21 to 26.

(33) At least one insertion part can be inserted into the mounting housing 9 of the fixtures 1, 2, 4, 5, 6 and 7 as far as an insertion stop. It is thus clear from FIGS. 1 to 12 and 14 to 26 that an insertion part which is designed as a jet splitter can be inserted into the mounting housing 9 of the fixtures 1, 2, 4, 5, 6 and 7, which insertion part has to divide the stream of water into a multiplicity of individual jets and, for this purpose, has a multiplicity of flow-through openings 22. The insertion part serving as the jet splitter is designed here as a diffuser 23 which has an annular wall 24 bearing the flow-through openings 22. A central impact surface 25 which deflects the inflowing stream of water in the direction of the circumferential flow-through openings 22 is integrally formed on the annular wall 24 of the diffuser 23, which is cup-shaped here.

(34) A diffuser ring 26 engages around the diffuser 23 in such a manner that a flow-through duct 30 tapering in the direction of flow is provided between the inner circumference of the diffuser ring 26 and the outer circumference of the diffuser 23. In this case, the aeration openings 15 are covered by the diffuser ring 26 at a distance in such a manner that the adjacent subregion of the diffuser ring 26 serves as a splash guard 27 for the ventilation openings 15 against the water flowing past the diffuser ring 26 on the inner circumferential side.

(35) The diffuser ring 26 of the fixtures 2, 5 and 6 has air flow-through openings 29 which narrow in the flow-through direction to form an air flow-through slot. The ambient air can therefore be sucked up via the aeration duct 14 through the aeration openings 15 in the circumferential wall and the air flow-through openings 29 in the diffuser ring 26 into the interior of the mounting housing 9 in order to mix there with the individual jets produced by the diffuser 23 before said individual jets are combined again and shaped at the housing end side 12, which serves as a flow straightener, to form a homogeneous, non-sputtering and sparkling and soft, aerated combination jet.

(36) The jet regulator 16 which is integrated into the fixtures 1, 2, 4, 5 and 6 therefore essentially consists of the diffuser 23, the associated diffuser ring 26 and the housing end side 12 of the mounting housing 9, which housing end side is designed as a flow straightener.

(37) Whereas, in the fixtures 1, 2, 4, 5 and 6, the jet splitter is designed as a diffuser 23, the fixture 7, which is designed as a jet regulator, in FIG. 27 instead has a jet splitter which is configured as a perforated plate 40 which, in order to divide the inflowing water into a multiplicity of individual jets, has a corresponding number of axial flow-through holes 41.

(38) In order to be able to suck up the ambient air into the housing interior and, for this purpose, to generate a negative pressure in the housing interior, an annular flow-through duct 30 which tapers in the direction of flow is provided between the inner circumference of the diffuser ring 26 and the outer circumference of the diffuser 23. In said tapering flow-through duct 30, the individual jets which are separated in the diffuser 23 are accelerated in such a manner that a negative pressure is produced on the downstream side of the diffuser 23 in the region of the downstream opening in the flow-through duct 30.

(39) Also in the case of the fixture 7 illustrated in FIG. 27, the passage cross section in the flow-through holes 41 in the perforated plate 40 is narrowed in such a manner that the individual jets produced by the perforated plate 40 are accelerated such that a negative pressure is also produced on the downstream side of the perforated plate 40.

(40) Whereas the diffuser ring 26 can be inserted into the mounting housing 9 as far as an insertion stop 31, the diffuser 23, for its part, can be inserted into the diffuser ring 26 as far as an insertion stop 32. In this case, a sealing ring 33 of preferably flexible material is provided, the sealing ring sealing the separating gaps between the mounting housing 9 and diffuser ring 26, and between the diffuser ring 26 and diffuser 23, and being able to be clamped between the inflow end border of the mounting housing 9 and an annular step in the water outlet 7 of the sanitary outlet fitting 8 for axial sealing purposes.

(41) It can be seen in FIGS. 1 to 12 and 14 to 26 that a flow-through quantity regulator 34 is connected upstream of the jet regulator of the fixtures 1, 2, 4, 5 and 6, the flow-through quantity regulator having an annular throttle body 35 of elastic material, which throttle body 35 between itself and a regulating profiling 36 bounds a control gap 37 which is changed by the pressure of the water flowing therethrough. Said flow-through quantity regulator 34 is connected via a latching connection to the jet regulator 16 following in the direction of flow and in particular to the diffuser 23 thereof. An ancillary sieve 38 which tapers conically counter to the direction of flow is in turn connected upstream of the flow-through quantity regulator 34 and has to filter out the dirt particles entrained in the water before said dirt particles can impair the function of the flow-through quantity regulator 34 or of the following jet regulator. A comparable ancillary sieve 38 is also provided upstream of the fixture 7.

(42) It is clear from a comparison of FIGS. 13 and 14 that the fixtures 1, 2, 4, 5, 6 and 7 illustrated here can also be screwed by means of the external thread 10 thereof, which is provided on the mounting housing 9, into the internal thread 11 on the water outlet 7 of a sanitary outlet fitting, which internal thread is otherwise required for the mounting of the outlet mouthpiece 28 required for a commercially available jet regulator 3. It is thereby possible to use the outlet fitting shown in FIGS. 13 and 14 either in combination with an outlet mouthpiece 28 and a commercially available jet regulator 3 inserted therein, or else in combination with one of the fixtures 1, 2, 4, 5, 6 and 7 according to the invention.

(43) It can be seen in FIG. 14 that the housing end side 12 can also be configured as a separate fixture and is inserted into the mounting housing 9 of the fixture 4. In this case, the outer circumference 43 of the housing end side 12, which is configured in the form of a disc, is of spherical-cap-shaped configuration and is held pivotably in a complementarily shaped socket 44 which is formed by a subregion of the inner circumferential wall of the housing 9. In order to be able to secure such a housing end side 12, which is produced as a separate fixture and is optionally also mounted pivotably in the housing 9, in the housing 9, it is expedient if pin-shaped projections 45 protrude on the downstream end border of the diffuser ring 26, said projections serving as a holding-down device or as a pivoting stop for the housing end side 12 which is configured as a separate fixture.