Sanitary outflow part and corresponding use

Abstract

In the case of a sanitary outflow part (1), it is provided that, between an inlet opening (2) and an outlet opening (3), in a flow path (4) which leads through a jet regulator unit (5), a secondary outlet (7) branches off downstream of the jet regulator unit (5). This secondary outlet leads to an additional secondary outlet opening (8) such that water entering via the inlet opening (2) emerges to the secondary outlet opening (8) at least when the outlet opening (3) of the sanitary outflow part (1) is closed off.

Claims

1. A sanitary outflow part (1), comprising: a housing with an inlet opening (2), which is adapted to be fastened to a fitting, and an outlet opening (3), a jet regulator unit (5) with at least one aeration opening (6) arranged in a flow path (4) between the inlet opening (2) and the outlet opening (3), a secondary outlet (7) that branches off in the flow path (4) between the jet regulator unit (5) and the outlet opening (3) that leads out in a laterally spaced-apart manner to a separate secondary outlet opening (8) and an aeration chamber (12) formed between the inlet opening (2) and the outlet opening (3), said aeration chamber extends outside the flow path (4), and the at least one aeration opening (6) is connected to the aeration chamber (12), wherein the secondary outlet (7) is branched off from the aeration chamber (12).

2. The sanitary outflow part (1) as claimed in claim 1, wherein the secondary outlet opening (8) is formed above the jet regulator unit (5) in a usage position.

3. The sanitary outflow part (1) as claimed in claim 1, wherein the secondary outlet (7) forms a duct (9) which runs at an angle with respect to the flow path (4) and counter to a flow direction of the flow path (4), and the secondary outlet opening (8) is formed at an open end (25) of the duct (9).

4. The sanitary outflow part (1) as claimed in claim 1, wherein the flow path (4) is formed without a valve downstream of the jet regulator unit (5).

5. The sanitary outflow part (1) as claimed in claim 1, wherein the aeration chamber (12) is ring-shaped, and the at least one aeration opening (6) is capable of being fed with air from the aeration chamber (12) during use.

6. The sanitary outflow part (1) as claimed in claim 1, wherein the aeration chamber (12) is separated from the flow path (4) by a closed wall (13) in which the at least one aeration opening (6) is formed.

7. The sanitary outflow part (1) as claimed in claim 6, wherein at least one diffuser exit opening (16) is arranged radially within the closed wall (13).

8. The sanitary outflow part (1) as claimed in claim 1, wherein an internal diameter of the outlet opening (3) is coordinated with a jet diameter predefined by the jet regulator unit (5).

9. The sanitary outflow part (1) as claimed in claim 1, wherein the jet regulator unit (5) includes at least one of a diffuser (14) or a flow rate regulator (15).

10. The sanitary outflow part (1) as claimed in claim 1, wherein, on the inlet opening (2), there is formed a thread (19) which is adapted to be screwed together with a counterpart thread of a fitting.

11. The sanitary outflow part (1) as claimed in claim 1, further comprising a sealing ring (20) placed into the inlet opening (2).

12. The sanitary outflow part (1) as claimed in claim 1, wherein the jet regulator unit (5) is at least one of insertable or removable as a cartridge (21) via the inlet opening (2).

13. The sanitary outflow part (1) as claimed in claim 1, wherein the housing (22) which forms the inlet opening (2), the outlet opening (3), and the secondary outlet opening (8) is manufactured from a dimensionally stable material.

14. The sanitary outflow part (1) as claimed in claim 1, wherein the jet regulator unit (5) is inserted into the outlet opening (3).

15. The sanitary outflow part (1) as claimed in claim 1, wherein the outlet opening (3) is adapted to be closed off using a finger.

16. The sanitary outflow part (1) as claimed in claim 1, wherein the aeration chamber (12) is sealed downstream of the secondary outlet (7).

17. A method of providing an alternate water flow from a sanitary fitting, comprising providing the sanitary outflow part (1) as claimed in claim 1, attaching the sanitary outflow part (1) onto the sanitary fitting, and closing the outlet opening (3) such that the alternate water flow is discharged from the separate secondary outlet opening (8).

18. The method of claim 17, wherein the sanitary fitting is of a wash basin or drinking basin.

19. The method of claim 17, wherein the sanitary outflow part (1) is mounted by screw fastening on an outflow of the sanitary fitting.

20. The method of claim 17, wherein an air stream eventually sucked in through the at least one aeration opening (6) is used for drying the secondary outlet (7).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention will now be described in more detail on the basis of an exemplary embodiment, but is not restricted to this exemplary embodiment. Further exemplary embodiments emerge from a combination of the features of individual or several claims with one another and/or with individual or several features of the exemplary embodiment.

(2) In the figures:

(3) FIG. 1 shows a sanitary outflow part according to the invention in an oblique view from above,

(4) FIG. 2 shows the sanitary outflow part according to the invention from FIG. 1 in an oblique view from below,

(5) FIG. 3 shows the sanitary outflow part according to the invention from FIG. 1 in a longitudinal section, and

(6) FIG. 4 shows the sanitary outflow part according to the invention from FIG. 1 in a partially exploded illustration.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(7) FIGS. 1 to 4 show different views of a sanitary outflow part which is denoted as a whole by 1. The sanitary outflow part 1 has an inlet opening 2 and an outlet opening 3.

(8) The inlet opening 2 is designed in a manner known per se for fastening to a fitting outflow of a fitting.

(9) A flow path 4 for water runs in the sanitary outflow part 1 between the inlet opening 2 and the outlet opening 3.

(10) Likewise arranged in a manner known per se in the flow path 4 is a jet regulator unit 5 which is flowed through by the liquid in the flow path 4.

(11) The jet regulator unit 5 has at least one aeration opening 6, in this case even a multiplicity of aeration openings 6. Air enters from the outside through the at least one aeration opening 6 in order to mix with the water in the flow path 4 to form an aerated jet.

(12) On the sanitary outflow part 1 there is formed a secondary outlet 7 through which water can emerge from the flow path 4 to the outside without flowing through the outlet opening 3.

(13) For this purpose, the secondary outlet 7 is branched off from the flow path 4 between the jet regulator unit 5 and the outlet opening 3.

(14) The secondary outlet 7 is led out to a secondary outlet opening 8 which is formed so as to be laterally spaced apart from the flow path 4 and separate from the outlet opening 3.

(15) From the sectional illustration in FIG. 3, it can be seen that the secondary outlet opening 8 is arranged above the jet regulator unit 5 in a usage position.

(16) The secondary outlet 7 forms a duct 9 which extends to the secondary outlet opening 8. The secondary outlet opening 8 is thus formed at the open end 25 of the duct 9.

(17) This duct 9 has a duct axis 10 which extends at an angle with respect to the flow path 4 and thus with respect to the longitudinal axis 11. Here, the profile direction of the duct 9 is oriented obliquely upward and thus counter to the flow direction of the flow path 4, which is directed substantially downward.

(18) The flow path 4 is formed without a valve at least downstream of the jet regulator unit 5.

(19) During normal use, the water flows along the flow path 4 without water emerging from the secondary outlet opening 8.

(20) Between the jet regulator unit 5 and the outlet opening 3 there is formed an aeration chamber 12 which is connected to the secondary outlet 7.

(21) The aeration chamber 12 is of ring-shaped form and surrounds the aeration openings 6 such that air can enter through the secondary outlet 7 in order to flow to the aeration openings 6.

(22) It is thus achieved that the aeration openings 6 can be fed with air from the surroundings via the aeration chamber 12 and the secondary outlet openings 8. To this end, the aeration chamber 12 may be sealed downstream of the secondary outlet 7 through tight contact between the housing 22 and cartridge housing 24. Thus, air sucked in by the process of aeration within the cartridge 21 through the aeration opening 6 is sucked in through the secondary outlet 7. This air dries up the secondary outlet 7 when not in use.

(23) Here, the aeration chamber 12 extends outside the normal flow path 4 such that, during normal operation, no water or substantially no water enters the aeration chamber 12.

(24) The secondary outlet 7 is branched off from the aeration chamber 12 downstream of the jet regulator unit 5, such that water emerging from the aeration openings 6which water emerges in a manner yet to be described in more detail if the outlet opening 3 is closed offemerges into the secondary outlet 7 and further from the secondary outlet opening 8.

(25) The outlet opening 3 is coordinated with the jet regulator unit 5 such that an internal diameter of the outlet opening 3 is larger than a jet diameter of the jet emerging from the jet regulator unit 5. Thus, a normally emerging water jet does not wet the edge of the outlet opening 3.

(26) During normal operation, the water in the flow path 4 draws air in through the aeration openings 6 owing to nozzle effects, which air is drawn in via the duct 9 and the secondary outlet 7. This constantly flowing air ensures that the duct 9 and the secondary outlet 7 are kept dry. This reduces or prevents microbiological infestation of the secondary outlet 7 and of the duct 9.

(27) The aeration chamber 12 is separated from the flow path 4 by a closed wall 13, which is interrupted only by the aeration openings 6.

(28) In this way, water is prevented from entering the secondary outlet 7 from the flow path 4 for as long as the outlet opening 3 is open.

(29) The jet regulator unit 5 has a diffuser 14 such as is known per se, by which the aeration of the water jet in the flow path 4 is achieved or initiated.

(30) Positioned upstream of the diffuser 14 is a flow rate regulator 15 which is likewise known per se and which is designed for setting a throughflow rate per unit of time which is independent of pressure within a working range.

(31) The combination of flow rate regulator 15 and diffuser 14 ensures that a shaped, aerated jet with the desired jet pattern emerges at the outlet opening 3 in a manner practically independent of the pressure conditions at the inlet opening 2.

(32) On the diffuser 14, at the outflow side, there are formed diffuser exit openings 16 which open out within the wall 13. At the downstream side in relation to the wall there is formed a straightener 17 which homogenizes the aerated jet in the flow path 4.

(33) At the inflow side in relation to the flow rate regulator 15, or at least at an inflow side of the jet regulator unit 5, there is arranged an upstream screen 18.

(34) For the fastening of the sanitary outflow part 1 to the inlet opening 2 on a fitting, a thread 19 is formed on the inlet opening 2, which thread can be screwed together with a corresponding counterpart thread on a fitting outflow.

(35) Into the inlet opening 2 there is placed a sealing ring 20 by which the sanitary outflow part 1 can be sealed off with respect to the fitting.

(36) In FIG. 4, it is clear that the jet regulator unit 5 is formed as part of a cartridge 21 which can be inserted via the inlet opening 2. For this purpose, the jet regulator unit 5 is supplemented by a cartridge housing 24, which also forms the wall 13. The cartridge housing 24 also bears the straightener 17.

(37) The described branching of the secondary outlet 7 is thus arranged between the jet regulator unit 5 and the straightener 17.

(38) The inlet opening 2, the outlet opening 3 and the secondary outlet opening 8 with the associated duct 9 are formed in a housing 22 which is manufactured from plastic or from metal and which is thus dimensionally stable.

(39) The cartridge-like jet regulator unit 5 can be inserted through the inlet opening 2 into the outlet opening 3 such that the jet regulator unit 5 is, at least in its end region 23, seated in the outlet opening 3. Here, the outer diameter of the end region 23 is coordinated with the inner diameter of the outlet opening 3 such that the jet regulator unit 5 is held on the inlet opening 2 counter to the water pressure.

(40) The outlet opening 3 is dimensioned such that it can be closed off using a finger, for example using an index finger of typical size.

(41) If the outlet opening 3 is closed off, the water in the flow path 4 can no longer flow out through the outlet opening 3. The water seeks another way out, and passes through the aeration openings 6 into the secondary outlet 7 and from there out of the secondary outlet opening 8 via the duct 9.

(42) The orientation of the duct axis 10 results in an obliquely upwardly directed jet which emerges in an arc which extends over a moderate distance such that drinking or mouth rinsing is made possible, but on the other hand the water jet does not overshoot a wash basin which is arranged below the fitting.

(43) As soon as the outlet opening 3 is opened again, the water jet from the secondary outlet opening 8 peters out, and the drawn-in air for the aeration of the water in the flow path 4 leads to drying-out of the duct 9 and of the secondary outlet 7.

(44) The sanitary outflow part 1 which is shown is, in a preferred use, screwed to a fitting outflow of a sanitary fitting of a wash basin and/or drinking basin.

(45) In the case of the sanitary outflow part 1, it is thus provided according to the invention that, between an inlet opening 2 and an outlet opening 3, in a flow path 4 which leads through a jet regulator unit 5, a secondary outlet 7 branches off downstream of the jet regulator unit 5, which secondary outlet is led to an additional secondary outlet opening 8 such that water entering via the inlet opening 2 emerges to the secondary outlet opening 8 at least when the outlet opening 3 of the sanitary outflow part 1 is closed off.

LIST OF REFERENCE DESIGNATIONS

(46) 1 Sanitary outflow part 2 Inlet opening 3 Outlet opening 4 Flow path 5 Jet regulator unit 6 Aeration opening 7 Secondary outlet 8 Secondary outlet opening 9 Duct 10 Duct axis 11 Longitudinal axis 12 Aeration chamber 13 Wall 14 Diffuser 15 Flow rate regulator 16 Diffuser exit opening 17 Straightener 18 Upstream screen 19 Thread 20 Sealing ring 21 Cartridge 22 Housing 23 End region 24 Cartridge housing 25 Open end