EP3351693B1 - Sanitary outlet part and corresponding use - Google Patents

Description

The invention relates to a sanitary outlet part, with an inlet opening, which is adapted for attachment to a fitting, and with an outlet opening, wherein in a flow path between the inlet opening and the outlet opening a jet regulator unit is arranged with at least one ventilation opening. Furthermore, between the inlet opening and the outlet opening a ventilation chamber is formed, which extends outside of the flow path, wherein the at least one ventilation opening is connected to the ventilation chamber, wherein a secondary outlet is formed, which is led out laterally at a separate secondary outlet opening, so that air enters through the at least one ventilation opening from the outside in order to mix with the water in the flow path to a ventilated jet.

The invention further relates to a use of a sanitary outlet part.

Sanitary outlet parts of the type described are known. The jet regulator unit is used to add air to a stream of water, which gives it more pleasant jet properties. The use of a jet regulator unit makes special demands on a downstream water outlet, as it must be avoided if possible that the shaped water jet is impaired and disturbed.

The DE 19 14 807 A1 relates to a drinking fountain attachment with ventilation device for connection to a faucet. The article has a rotatable part in which upwards directed water channels are formed, wherein the secondary outlet formed by the rotatable part branches off in the flow direction above a jet regulator unit.

The US 2 994 481 A , which is considered to represent the closest prior art, relates to a flow regulator having a secondary outlet branching from a flow path. The secondary outlet branches off between an inlet opening and a jet regulator.

The US Pat. No. 3,580,503 A also relates to a sanitary outlet unit, which has a secondary outlet, by means of which a drinking jet can be generated by closing a ventilation opening.

The invention has for its object to expand the applications of a sanitary outlet part.

To achieve the above object, the features of claim 1 are provided according to the invention. In particular, it is thus proposed according to the invention to solve the above object in a sanitary outlet part of the type described above, that the secondary outlet is branched off from the ventilation chamber in the flow path between the jet regulator unit and the outlet opening. Thus, a further application possibility is provided, in which the outflowing water can be diverted into the secondary outlet. The effluent via the secondary outlet water is easier for a user to access and can, for example, drunk and / or used for oral and / or facial rinsing. In one embodiment of the invention can be provided that the secondary outlet opening is formed in the use position above the jet regulator unit. Thus, it is avoidable for water to leak from the sub-discharge port when the outlet is opened.

In one embodiment of the invention can be provided that the secondary outlet forms a running at an angle to the flow path and against a flow direction of the flow path channel at the open end of the secondary outlet opening is formed. Thus, it can be achieved that the water exits from the secondary outlet in an obliquely upward angle. The emerging water jet is thus particularly easy to reach.

In one embodiment of the invention can be provided that the flow path is formed valve-free at least behind the jet regulator unit. Thus, the aerated water jet is up to the water outlet at the outlet as little as possible affected, disturbed or changed.

In the invention it is provided that between the inlet opening and the outlet opening a ventilation chamber is formed, which extends outside the flow path, wherein the at least one ventilation opening is connected to the ventilation chamber. Thus, a distribution of air to the ventilation holes is possible. This is particularly favorable if a multiple or multiplicity of ventilation openings, for example two, three, four, eight, or more than eight ventilation openings, are formed. In use, the jet regulator unit may thus be fed with air from the aeration chamber. Preferably, the ventilation chamber is annular in shape to allow for all-round ventilation along a full circumference.

In the invention it is provided that the secondary outlet is branched off from the aeration chamber. Thus, it is achievable that an air flow which is sucked in use from the ventilation openings, flows over the secondary outlet. This allows drying of the secondary outlet when not in use. Thus, the risk of colonization of pathogens in the secondary outlet is reduced.

In one embodiment of the invention can be provided that an inner diameter of the outlet opening is tuned to a predetermined by the jet regulator unit beam diameter. Thus, it is achievable that the shaped water jet can emerge undisturbed. Since especially the outer layers of the water jet determine an optical appearance outside the water outlet, so unwanted adverse effects are avoidable. Especially it is favorable in this case if the inner diameter is slightly larger than the beam diameter, for example at most so much greater that a jet of water exiting the jet regulator unit, despite the unavoidable beam expansion does not touch the outlet, but exits without contact. This allows a completely trouble-free escape even of the expanded water jet from the outlet.

In one embodiment of the invention it can be provided that the ventilation chamber is separated from the flow path by a closed wall, in which the at least one ventilation opening is formed. Thus, an accidental ingress of water, such as splashing, in the secondary outlet is avoidable. The secondary outlet is therefore dry outside the intended use. In this case, it can be provided that, in the case of a closure of the outlet, a space enclosed by the wall can be flooded, so that the inflowing water exits through the at least one ventilation opening into the secondary outlet.

In one embodiment of the invention can be provided that the jet regulator unit comprises a diffuser. Thus, aeration of the water jet is easily accessible by means known per se. Alternatively or additionally, it may be provided that the jet regulator unit has a flow regulator. Thus, a flow rate pressure-independent - at least within a pressure-working range - can be designed. The spray pattern is thus easier to control, and legal requirements can be met, even for the downstream secondary outlet.

In one embodiment of the invention can be provided in that at least one diffuser outlet opening is arranged radially inside the wall. In the area of the diffuser outlet opening, as is known, the addition of air takes place. Here, the flow is particularly uneven, so that the risk of splashing water is particularly high. The arrangement within the wall may help to prevent splash water from entering the sub-outlet. Thus, the secondary outlet is dry outside its intended use dry.

In one embodiment of the invention can be provided that at the inlet opening a thread is formed, which can be screwed with a mating thread of a valve. Thus, the outlet part is firmly attached to the fitting. A force caused by a flow resistance generated by the jet regulator unit is thus receivable by the screw connection. It is therefore achievable that the sanitary outlet part remains at the valve even at a high operating pressure.

In one embodiment of the invention can be provided that in the inlet opening a sealing ring is inserted. Thus, an undesirable leakage of water at the inlet opening is avoidable. This is particularly advantageous at high operating pressures or flow rates, since the jet regulator unit usually forms a considerable flow resistance.

In one embodiment of the invention can be provided that the jet regulator unit can be used as a cartridge via the inlet opening and / or removed. Thus, the jet regulator unit is easily replaceable, for example, in case of contamination or limescale deposits. Standard available jet regulator units are also usable, if a receiving interior is dimensioned accordingly.

In one embodiment of the invention can be provided that a housing forming the inlet opening, the outlet opening and / or the secondary outlet opening is made of a dimensionally stable material. Thus, a stable outlet part is available. The used jet regulator unit can be protected from external mechanical damage. The housing is preferably made of plastic, for example POM (polyoxymethylene). This allows a stable and visually and / or haptically appealing design, especially in coordination with the fitting. The housing can also be made of metal.

In one embodiment of the invention it can be provided that the jet regulator unit is inserted into the outlet opening, for example through the inlet opening. Thus, a direct forwarding of the shaped water jet, as it exits the jet regulator unit, can be reached in the outlet opening. It is preferably provided here that the jet regulator unit has an outer diameter at least in one end region, which is tuned to an inner diameter of the outlet opening. Thus, the jet regulator unit is easily held in a predetermined position. It is particularly favorable when the outer diameter is so much larger than the inner diameter that the jet regulator unit is held by the outlet opening.

In one embodiment of the invention can be provided that the outlet opening can be closed with a finger. Thus, a user can easily close the outlet without additional valves to use the sub-outlet.

A preferred application of the invention provides for the use of a sanitary outlet part according to the invention, in particular as described above and / or according to one of the claims directed to a sanitary outlet part, to use the sanitary outlet part on a Sänitararmatur, in particular a washing and / or drinking pool, wherein the sanitary outlet part is mounted on a tap outlet, in particular screw-mounted.

The invention will now be described in detail with reference to an embodiment, but is not limited to this embodiment. Further exemplary embodiments result from a combination of the features of one or more claims with one another and / or with one or more features of the exemplary embodiment.

Fig. 1

ein erfindungsgemäßes sanitäres Auslaufteil in einer Schrägansicht von oben,

Fig. 2

das erfindungsgemäße sanitäre Auslaufteil aus Fig. 1 in einer Schrägansicht von unten,

Fig. 3

das erfindungsgemäße sanitäre Auslaufteil aus Fig. 1 in einem Längsschnitt und

Fig. 4

das erfindungsgemäße sanitäre Auslaufteil aus Fig. 1 in teilweise Explosionsdarstellung.

It shows

Fig. 1

an inventive sanitary outlet part in an oblique view from above,

Fig. 2

the sanitary outlet part according to the invention Fig. 1 in an oblique view from below,

Fig. 3

the sanitary outlet part according to the invention Fig. 1 in a longitudinal section and

Fig. 4

the sanitary outlet part according to the invention Fig. 1 in a partially exploded view.

The FIGS. 1 to 4 show different views of a designated as a whole with 1 sanitary outlet part. The sanitary outlet part 1 has an inlet opening 2 and a Outlet opening 3.

The inlet opening 2 is arranged in a manner known per se for attachment to a fitting outlet of a fitting.

Between the inlet opening 2 and the outlet opening 3 runs in the sanitary outlet part 1, a flow path 4 for water.

In the flow path 4, a jet regulator unit 5 is arranged in a manner also known per se, which is flowed through by the liquid in the flow path 4.

The jet regulator unit 5 has at least one ventilation opening 6, here even a multiplicity of ventilation openings 6. Air enters through the at least one ventilation opening 6 from the outside in order to mix with the water in the flow path 4 to form a ventilated jet.

On the sanitary outlet part 1, a secondary outlet 7 is formed, through which water can escape out of the flow path 4 to the outside without flowing through the outlet opening 3.

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.

The secondary outlet 7 is led out to a secondary outlet opening 8 which is laterally spaced from the flow path 4 and formed separately from the outlet opening 3.

From the sectional view in FIG. 3 it can be seen that the secondary outlet opening 8 is arranged in the position of use above the jet regulator unit 5.

The sub-outlet 7 forms a channel 9, which extends to the sub-outlet opening 8. The sub-outlet opening 8 is thus formed at the open end 25 of the channel 9.

This channel 9 has a channel axis 10 which extends at an angle to the flow path 4 and thus to the longitudinal axis 11. Here, the course direction of the channel 9 is aligned obliquely upward and thus against the flow direction of the flow path 4, which is directed substantially downwards.

The flow path 4 is formed valve-free at least behind the jet regulator unit 5.

In normal use, the water flows along the flow path 4 without water exiting the secondary outlet opening 8.

Between the jet regulator unit 5 and the outlet opening 3, a ventilation chamber 12 is formed which communicates with the secondary outlet 7.

The ventilation chamber 12 is annular and surrounds the ventilation openings 6 such that air can enter through the auxiliary outlet 7 in order to flow to the ventilation openings 6.

It is thus achieved that the ventilation openings 6 can be fed with air via the ventilation chamber 12 and the secondary outlet openings 8 from the surroundings.

The ventilation chamber 12 extends outside of the regular flow path 4, so that no water or substantially no water enters the ventilation chamber 12 during normal operation.

The secondary outlet 7 is branched off from the aeration chamber 12 behind the jet regulator unit 5, so that water emerging from the ventilation openings 6 - this occurs in a manner which will be described in more detail with closure of the outlet opening 3 - into the secondary outlet 7 and further out of the Side outlet opening 8 emerges.

The outlet opening 3 is matched to the jet regulator unit 5 such that an inner diameter of the outlet opening 3 is greater than a jet diameter of the jet emerging from the jet regulator unit 5. Thus, a regularly exiting water jet does not wet the edge of the outlet opening 3.

In normal operation, the water in the flow path 4 sucks in air due to nozzle effects through the ventilation openings 6, which is sucked in via the channel 9 and the secondary outlet 7. This constantly flowing air ensures that the channel 9 and the secondary outlet 7 are kept dry. This reduces or prevents microbiological infestation of the secondary outlet 7 and the channel 9.

The ventilation chamber 12 is separated from the flow path 4 by a closed wall 13, which is broken only by the ventilation openings 6.

In this way, prevents water from the flow path 4 enters the sub-outlet 7, as long as the Outlet opening 3 is open.

The jet regulator unit 5 has a known diffuser 14, with which the ventilation of the water jet in the flow path 4 is reached or triggered.

Upstream of the diffuser 14 is also a known quantity regulator 15, which is set up for setting a pressure-independent flow rate per unit time within a working range.

The combination of volume regulator 15 and diffuser 14 ensures that at the outlet opening 3, a shaped, aerated jet with the desired spray pattern emerges virtually independently of the pressure conditions at the inlet opening 2.

At the diffuser 14 diffuser outlet openings 16 are formed downstream, which open inside the wall 13. A rectifier 17, which makes the ventilated steel in the flow path 4 uniform, is formed downstream of the wall.

On the inflow side to the flow regulator 15 or at least on one upstream side of the jet regulator unit 5, a front screen 18 is arranged.

To attach the sanitary outlet part 1 with the inlet opening 2 to a valve, a thread 19 is formed at the inlet opening 2, which is screwed with a corresponding mating thread on a fitting outlet.

In the inlet opening 2, a sealing ring 20 is inserted, with which the sanitary outlet part 1 is sealable to the valve.

In FIG. 4 it can be seen 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. Cartridge housing 24 also supports rectifier 17.

The described branch of the secondary outlet 7 is thus arranged between the jet regulator unit 5 and the rectifier 17.

The inlet opening 2, the outlet opening 3 and the secondary outlet opening 8 with the associated channel 9 are formed in a housing 22, which is made of plastic or metal and thus dimensionally stable.

The cartridge-shaped jet regulator unit 5 can be inserted through the inlet opening 2 into the outlet opening 3 such that the jet regulator unit 5 sits in the outlet opening 3 at least in its end region 23. In this case, the outer diameter of the end region 23 is matched to the inner diameter of the outlet opening 3 such that the jet regulator unit 5 is held against the water pressure at the inlet opening 2.

The outlet opening 3 is dimensioned so that it can be closed with a finger, for example with a forefinger of typical size.

If the outlet opening 3 is closed, the water in the flow path 4 can no longer flow away through the outlet opening 3. It seeks another way out and enters through the ventilation holes 6 in the secondary outlet 7 and from there via the channel 9 from the secondary outlet opening 8 out.

The orientation of the channel axis 10 results in an obliquely upwardly directed jet, which emerges in a moderately wide arc, so that on the one hand drinking or mouth rinsing is possible, but the water jet on the other hand not via a sink, which is arranged below the valve, overshoots.

As soon as the outlet opening 3 is opened again, the water jet dries up from the secondary outlet opening 8, and the intake air for aeration of the water in the flow path 4 causes the channel 9 and the secondary outlet 7 to dry out.

The sanitary outlet part 1 shown is screwed in a preferred use of a tap outlet of a sanitary fitting of a washing and / or drinking water.

The sanitary outlet part 1 is thus proposed according to the invention, between an inlet opening 2 and an outlet opening 3 in a flow path 4, which leads through a jet regulator unit 5, behind the jet regulator unit 5 to branch off a secondary outlet 7, which led to an additional secondary outlet opening 8 is such that water entering via the inlet opening 2 at least then exits to the secondary outlet opening 8 when the outlet opening 3 of the sanitary outlet part 1 is closed.

LIST OF REFERENCE NUMBERS

1

sanitary outlet part

2

inlet port

3

outlet

4

flow

5

Aerator unit

6

ventilation opening

7

Besides outlet

8th

In addition to outlet port

9

channel

10

channel axis

11

longitudinal axis

12

aeration chamber

13

wall

14

diffuser

15

flow regulator

16

Diffuser outlet opening

17

rectifier

18

attachment screen

19

thread

20

seal

21

cartridge

22

casing

23

end

24

cartridge housing

25

open end

Claims (16)

1. Sanitary outflow part (1), having an inlet opening (2), which is designed for fastening to a fitting, and having an outlet opening (3), a jet regulator unit (5) with at least one aeration opening (6) being arranged in a flow path (4) between the inlet opening (2) and the outlet opening (3), an aeration chamber (12) being formed between the inlet opening (2) and the outlet opening (3), which aeration chamber extends outside the flow path (4), the at least one aeration opening (6) being connected to the aeration chamber (12), a secondary outlet (7) being formed which is led out in a laterally spaced-apart manner at a separate secondary outlet opening (8), and air entering 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, characterized in that the secondary outlet (7) is branched off in the flow path (4) between the jet regulator unit (5) and the outlet opening (3) from the aeration chamber (12).
2. Sanitary outflow part (1) according to Claim 1, characterized in that the secondary outlet opening (8) is formed above the jet regulator unit (5) in a usage position.
3. Sanitary outflow part (1) according to one of the preceding claims, characterized in that 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 at the open end (25) of which the secondary outlet opening (8) is formed.
4. Sanitary outflow part (1) according to one of the preceding claims, characterized in that the flow path (4) is formed without a valve at least downstream of the jet regulator unit (5).
5. Sanitary outflow part (1) according to one of the preceding claims, characterized in that the aeration chamber (12) is of ring-shaped form, the at least one aeration opening (6) with the aeration chamber (12) being capable of being fed with air from the aeration chamber (12) during use.
6. Sanitary outflow part (1) according to one of the preceding claims, characterized in that an internal diameter of the outlet opening (3) is coordinated with a jet diameter predefined by the jet regulator unit (5).
7. Sanitary outflow part (1) according to one of the preceding claims, characterized in that 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.
8. Sanitary outflow part (1) according to one of the preceding claims, characterized in that the jet regulator unit (5) has a diffuser (14) and/or a flow rate regulator (15) .
9. Sanitary outflow part (1) according to one of the preceding claims, characterized in that at least one diffuser exit opening (16) of a or of the diffuser (14) is arranged radially within a or the wall (13).
10. Sanitary outflow part (1) according to one of the preceding claims, characterized in that, on the inlet opening (2), there is formed a thread (19) which can be screwed together with a counterpart thread of a fitting.
11. Sanitary outflow part (1) according to one of the preceding claims, characterized in that a sealing ring (20) is placed into the inlet opening (2).
12. Sanitary outflow part (1) according to one of the preceding claims, characterized in that the jet regulator unit (5) is insertable and/or removable as a cartridge (21) via the inlet opening (2).
13. Sanitary outflow part (1) according to one of the preceding claims, characterized in that a housing (22) which forms the inlet opening (2), the outlet opening (3) and/or the secondary outlet opening (8) is manufactured from a dimensionally stable material, in particular from metal.
14. Sanitary outflow part (1) according to one of the preceding claims, characterized in that the jet regulator unit (5) is inserted into the outlet opening (3), it being the case in particular that the jet regulator unit (5) has, at least in an end region (23), an external diameter which is coordinated with an inner diameter of the outlet opening (3).
15. Sanitary outflow part (1) according to one of the preceding claims, characterized in that the outlet opening (3) can be closed off using a finger.
16. Use of a sanitary outflow part (1) according to one of the preceding claims on a sanitary fitting, in particular of a wash basin and/or drinking basin, the sanitary outflow part (1) being mounted, in particular mounted by screw fastening, on a fitting outflow.

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