EP2746474A1 - Flushing device with odour extractor - Google Patents

Abstract

The device (1) has a flushing unit (5) including a flushing valve (6) with an overflow pipe (7), and a triggering element (8) for actuating the flushing valve. A suction unit (2) includes a ventilator (9) for suction of air through an air duct (10), which is partially extended through a flushing tank (3). The suction unit includes a filter element (11) for filtering air. The filter element represents an end of the air duct. The triggering element, the ventilator, and the filter element are mounted at and/or arranged in a common housing (12). The suction unit sucks odor from a sanitary device.

Description

TECHNICAL AREA

The present invention relates to a flushing device with a suction unit for extracting odors from a sanitary device, such as a Klossettschüssel or a urinal, according to the preamble of claim 1.

STATE OF THE ART

The EP 1 169 522 shows a device for extracting odors from a toilet bowl. After the device of the EP 1 169 522 a fan with a filter is arranged in the cistern, via which fan air from the toilet bowl can be sucked, the air is then passed through the filter.

A disadvantage of the EP 1 169 522 is that the individual components are very expensive to install. The individual components are in a functional context. Incorrect assembly can disrupt this functional interaction. The assembly must therefore be done very carefully, which is very time consuming. In particular, the production of this functional interaction among the components is complicated.

Another disadvantage is the fact that many of the individual components, especially in improper installation, can come into contact with the rinse water, whereby the life and reliability is severely limited.

PRESENTATION OF THE INVENTION

Based on this prior art, the invention has for its object to provide a flushing device with odor extraction, which are easier to assemble. Another object is to provide a flushing device which is more reliable and has a longer service life.

Accordingly, a flushing device comprises a suction unit for extracting odors from a sanitary device, such as a toilet bowl or a urinal, a cistern for receiving rinse water, a filling valve for filling the cistern and a flushing unit for Provision of rinse water. The flushing unit comprises a flushing valve with an overflow pipe and a triggering element for actuating the flushing valve. The suction unit comprises a fan for extracting air through an air duct which extends at least partially through the cistern, and a filter element for filtering the air, wherein the filter element is the end of the air duct. The beginning of the air duct is preferably in the sanitary device. The said triggering element, the said fan and the said filter element are mounted on a common housing, in particular arranged in a common housing.

The storage of the triggering element, the fan and the filter element on or in a common housing has the advantage that the elements are easier to assemble. In addition, the elements are protected by the housing and do not come in contact with the rinse water.

Preferably, the housing has an upper housing part and a lower housing part, which can be plugged together. The housing can be used as a whole or as an assembly in the cistern. In another embodiment, it is also conceivable to first mount the lower housing part in the cistern and then to connect the upper housing part with the lower housing part.

Preferably, the housing provides a part of the air channel and is in terms of air, particularly preferably against water, dense. The overflow tube opens into the housing, wherein the overflow pipe provides a part of said air channel.

The air duct is thus provided by the overflow pipe and the said housing. The overflow pipe opens with respect to the housing in an opening in the cistern, preferably in the drain opening, which communicates with a drain pipe with the sanitary device. Consequently, the air duct is provided by the sanitary device seen through the drain pipe, the overflow pipe and the said housing.

Preferably, a seal is arranged between the upper housing part and the lower housing part. The seal may be a separate seal, such as a rubber seal, or integrated on the upper housing part or on the lower housing part. In the latter case, it would be conceivable that the seal is provided by two contact surfaces.

Preferably, the housing is largely above the waterline of the cistern and thus comes only slightly with the filling of the cistern with the rinse water in contact. As a result, the life of the sanitary device is further increased.

Preferably, the housing is formed separately from the cistern and stored on or in the cistern. The housing is thus in communication with the cistern.

Particularly preferably, the housing is connected via a snap connection with the cistern. In a particularly preferred embodiment, the housing is connected to the cistern via the lower housing part, the upper housing part then being indirectly connected to the cistern via the lower housing part.

Preferably, the fan and the filter element is mounted on the upper housing part. Next, the triggering element is preferably at least partially mounted on the housing base. As a result, a functional separation of the individual elements is achieved, which is advantageous in the case of maintenance.

Particularly preferably, the triggering element comprises at least one motor and a tripping lever driven by the motor. The motor is preferably a servomotor. Particularly preferably, the engine with an output lever acts on the at least one release lever. The output lever lifts the release lever, which in turn then acts on the flushing unit, in particular on the flush valve.

The output lever is movable from a rest position in at least one rinse position. Particularly preferably, the output lever is not in the rest position with the release lever in contact, but comes in motion to the output lever with this in contact.

Preferably, the release lever of the trigger element is mounted on the lower housing part and the motor on the upper housing part. Thus, the electrical elements and the mechanical elements are separated.

In the case of maintenance, it is thus possible to wait for the electrical elements, in this case the motor and possibly the fan, by dismantling the housing upper part, while the mechanical elements remain unaffected during this maintenance. When disassembling the upper housing part of the output lever is in a maintenance position or at rest, so that it is not engaged with the trigger lever.

Preferably, the housing comprises an opening through which at least one control rod of the flushing valve can be passed, wherein the at least one control rod is in communication with the at least one release lever.

Particularly preferably, the triggering element is arranged on a bearing element which is connectable to the housing, in particular to the housing lower part. Preferably, the triggering element can be inserted with the bearing element in the lower housing part.

Further, the housing preferably comprises a control cam for aligning the triggering element during assembly. The control cam moves when connecting the bearing element with the housing, the release lever such that the release lever in

Engagement with the purge valve, in particular with the control rod, can be brought.

Particularly preferably, the control cam is arranged on the lower housing part, wherein during assembly first the lower housing part is mounted in the cistern and then the triggering element is connected to the lower housing part, wherein the triggering element acts on the flushing valve. Subsequently, the upper housing part is still connected to the lower housing part.

Particularly preferably, the housing around said opening on an edge projecting from the housing, which extends away from the housing into the interior of the cistern to below the waterline at full filling. That is, the peripheral edge comes in contact with the water, whereby the water provides a seal, so that is not sucked through the opening air from the cistern into the housing.

Preferably, the filter element is a filter cartridge, which is mounted exchangeably in a housing formed on the receptacle. The receptacle preferably has a shape complementary to the filter cartridge.

In the region of the receptacle, the housing has a further opening, via which the air can be fed to the filter element. In other words, the filter element lies in front of this opening. The filtered air is discharged into the interior of the cistern.

In one embodiment of the invention, the filling valve communicates with the housing or is mounted on the housing.

Further embodiments are given in the dependent claims.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1

eine Schnittansicht einer Spülvorrichtung nach einer Ausführungsform von vorne;

Fig. 2

eine perspektivische Schnittansicht der Spülvorrichtung nach Fig. 1;

Fig. 3

eine Detailansicht der Fig. 2;

Fig. 4

eine perspektivische Ansicht eines Gehäuse zur Aufnahme von verschiedenen Elementen der Spülvorrichtung nach Fig. 1;

Fig. 5

eine perspektivische Ansicht des Gehäuseoberteils des Gehäuses nach Fig. 4; und

Fig. 6

eine perspektivische Ansicht des Gehäuseunterteils des Gehäuses nach Fig. 4.

Preferred embodiments of the invention will now be described with reference to the drawings which are given by way of illustration only and not by way of limitation are to be interpreted. In the drawings show:

Fig. 1

a sectional view of a flushing device according to an embodiment of the front;

Fig. 2

a perspective sectional view of the flushing device according to Fig. 1 ;

Fig. 3

a detailed view of the Fig. 2 ;

Fig. 4

a perspective view of a housing for receiving various elements of the flushing device according to Fig. 1 ;

Fig. 5

a perspective view of the housing top of the housing after Fig. 4 ; and

Fig. 6

a perspective view of the lower housing part of the housing after Fig. 4 ,

DESCRIPTION OF PREFERRED EMBODIMENTS

In the front view of the Fig. 1 and the perspective view of Fig. 2 a flushing device 1 according to an embodiment of the invention is shown.

The flushing device 1 comprises a suction unit 2 for extracting odors from a sanitary device, a cistern 3 for receiving flushing water for flushing the sanitary device, a filling valve 4 for filling the flushing cistern and a flushing unit 5 for providing flushing water for flushing the sanitary device.

The sanitary device can be both a urinal and a toilet bowl.

The cistern 3 comprises a bottom 26 and substantially perpendicularly from the bottom 26 extending side walls 27. In the Fig. 1 and 2 For example, the front side wall 27 is not shown to allow a view into the cistern 3. Four side walls 27 and the bottom 26 provide the cistern 3 with an interior 20 ready. The interior 20 serves to receive water. At the top of the cistern 3 is open here. But it can also be provided with a corresponding lid.

In the area of the floor 26, the cistern 3 comprises a drain opening 29. Below the Opening 29, a drain pipe 30 is arranged, which is connectable to the sanitary device. The drain pipe 30 is, for example, with a molded-on cistern 3 connecting piece with the cistern 3 in combination.

The rinsing unit 5 comprises a flushing valve 6, which closes the opening 29 in the cistern 3. The flush valve 6 can be raised from the opening 29, in which case water can flow out of the flushing cistern 3 through the drainage pipe 30 to the sanitary device through the resulting annular gap. Furthermore, the flushing valve 6 comprises an overflow pipe 7, which extends along a central axis. During the flushing process both flushing valve 6 and the overflow pipe 7 are lifted from the opening 29. For this purpose, the flushing unit 5 comprises a triggering element 8, which serves to actuate the flushing valve 6. With the trigger element 8, the flush valve 6 can be moved from a closed position to an open position. This is essentially a lifting of the purge valve 6.

The suction unit 2 comprises a fan 9 for the suction of air through an air duct 10. The air duct 10 extends at least partially through the cistern 3 therethrough. Furthermore, the suction unit 2 comprises at least one filter element 11 for filtering the air sucked out of the sanitary device. The filter element 11 may contain, for example, activated carbon as the filter medium. Other filter media are also conceivable. The filter element 11 represents the end of the air duct 10. The air duct 10 is provided in the present embodiment through the drain pipe 30 and the overflow pipe 7. The overflow tube 7 provides the portion of the air duct 10 which extends through the cistern 3 therethrough. The overflow pipe 10 discharges directly into the drainage pipe 30 and serves as a security element even in the event of failure of the filling valve 4, so that water can reach the drainage pipe 30 via the overflow pipe 7. Such overflow pipes 7 are already known from the prior art.

The triggering element 8, the fan 9 and the filter element 11 are arranged in a common housing 12 or mounted on a common housing 12. This has the advantage that said elements are protected within the cistern by the housing 12 against external influences and that said elements with a common mechanical base in the cistern 3 are fastened. In addition, leaves the trigger element 8, the fan 9, and the filter element 11 easier to assemble, because the number of parts decreases. The housing 12 is formed separately from the cistern 3 and is fixed in or on the cistern 3. The housing 12 may partially protrude out of the cistern.

In the Fig. 1 to 3 the housing 12 is shown cut so that the elements arranged in the housing 12 can be detected. In the FIG. 4 the housing is shown in the uncut state.

The Fig. 3 shows an enlargement of the Fig. 2 , Here it can be well recognized that the housing 12 comprises an upper housing part 13 and a lower housing part 14. The upper housing part 13 can be plugged together with the lower housing part 14. Here protrude parts of the upper housing part 13 in the lower housing part 14 a.

The connection between the upper housing part 13 and the lower housing part 14 is secured by snap connector 31 here. The snap connectors 31 can be solved by hand accordingly.

The housing 12 provides by the arrangement of the fan 9 within the housing 12 a portion of the air duct 10 ready. The housing 12 is dense with respect to air, particularly preferably against water. For this purpose, a seal can be arranged between the upper housing part 13 and the lower housing part 14. Alternatively, the sealing effect can also be provided by the skillful design of the connection point between the upper housing part 13 and lower housing part 14, so that no separate seal is necessary.

With respect to the air duct 10 is overlooking the Fig. 2 It should also be noted that the air duct 10 is provided by the drain pipe 30, the overflow pipe 10, the housing 12 and the filter element 11. Consequently, therefore, the air can be sucked out of the sanitary device in the direction of the cistern 3 via this air duct 10. The air flow is opposite to the flushing water flow. The filtered air is released here in the cistern 3. A return to the room in which the sanitary device is placed, but also conceivable.

In the Fig. 1 and 3 In addition, the waterline WL of the rinse water is still drawn. At full filling of the cistern 3, the waterline WL forms the highest water level. The housing 12 is largely above the waterline WL. Thus, therefore, the housing 12 is only minimally in full filling of the cistern 3 with the rinse water in contact. This has the advantage that the elements arranged in the housing 12 do not come into direct contact with the rinse water, which significantly increases their service life.

In the present embodiment, the housing 12 protrudes with only one edge 19 into the rinse water. The edge 19 thus extends through the waterline WL down into the rinse water. The function of the edge 19 will be explained in more detail below.

With reference to the 4 to 6 Now, the housing 12 and the upper housing part 13 and lower housing part 14 is explained in more detail.

The fan 9 and the filter element 11 are arranged on the upper housing part 13. The triggering element 8, however, is arranged on the lower housing part 12. This arrangement has the advantage that the elements which provide the air extraction, are mounted on a single housing part. In the case of maintenance of the suction unit 2, here the fan 9 and the filter element 11, the installer must therefore do only acts on the upper housing part 13. The rinsing unit 5, here the triggering element 8, is mounted on the lower housing part 14. During maintenance of the suction unit 2, the lower housing part 14 may remain in the cistern 3 and does not need to be removed. Consequently, the arrangement of the fan 9 and the filter element 11 on the upper housing part 13 and the arrangement of the trigger element 8 on the lower housing part 12 provides a functional separation of the function air suction and the function flushing.

With regard to the triggering element 8, however, it should also be noted that some elements of the triggering element 8, such as a motor 15, can certainly also be arranged on the housing upper part 13. Although this leads to a softening of the functional separation, but has other benefits.

The housing 12 is mounted in the cistern. The housing 12 is connected via a snap connection with the cistern 3 in connection. Particularly preferably, the corresponding snap elements are arranged on the lower housing part 14. That is, the upper housing part 13 is not mechanically connected to the cistern 3 in connection, but is connected via the lower housing part 12 with the cistern 3.

The triggering element 8 here further comprises a motor 15 and a tripping lever 16 driven by the motor 15. The triggering lever 16 is connected to a control rod 18 of the flushing valve 6. The control rod 18, which in the Fig. 3 can be detected acts on the overflow pipe 7 and the purge valve 6. About a movement of the trigger lever 16, the control rod 18 and thus also the purge valve 6 is lifted from the opening 29. Depending on the design of the flush valve, a full flush or a partial flush can be carried out. Here, the release lever 16 either moves to two different positions or the opening is timed.

The release lever 16 includes, as of the Fig. 6 can be detected, in the present embodiment, a bearing portion 32 and a lever portion 33. With the lever portion 33 of the trigger lever 16 is in communication with the control rod 18, wherein the control rod 18 has an opening 34 for this purpose. With the storage section 32 of the release lever 16 is connected to a bearing element 12 in connection. The bearing element 21 can preferably be connected to the housing 12, in this case to the housing lower part 14. Preferably, the storage element 21 can be inserted into the lower housing part 14. The release lever 16 is pivotally mounted to the bearing element 21. For this purpose, two pivot pins 35 on the release lever 16 in receiving openings 36 on the bearing element 21 a.

The movement of the motor 15 acts on the release lever 16 via the projection 37. For the transmission of the movement, the motor 15 comprises an output lever 23. The output lever 23 stands with the output shaft 38 of the motor 15 in connection. The output lever 23 engages here at the neck 37. In the Fig. 3 can be recognized that the output lever 23 is in the rest position. Now, if the purge is triggered, the output lever 23 pivots to the release lever 16 and engages it at the neck 37, whereby the release lever 16 and thus the control rod 18 are raised. The flushing is thus triggered. Subsequently, the output lever 23 is pivoted back into the rest position, whereby the release lever 16 is moved back down. The purge valve 16 is then closed again.

The motor 16 with the output lever 23 is arranged here on the upper housing part 13. Consequently, therefore, parts of the release element 8 are arranged on the upper housing part 13 and parts of the triggering element 8 on the lower housing part 14. As a result, the above-mentioned functional separation is not achieved directly. However, the arrangement of the motor 16 as an electrical component on the same housing part as the fan 9, which is also an electrical component, the advantage that in case of an electrical defect only said housing part must be replaced. Consequently, there is also a kind of functional separation between electrical components, which are arranged on the upper housing part 13, and mechanical components, which are arranged on the lower housing part 14.

In the Fig. 3 can be further recognized that the lower housing part 14 has a control cam 22 for aligning the release lever 16. If now the bearing element 21 is placed with the release lever 16 in the lower housing part 14, the release lever 16 is aligned via the control cam 22. About the cam 22 of the release lever 16 is automatically connected during assembly of the same with the control rod 18. Consequently, therefore, the release lever 16 is guided by the cam 22 during assembly accordingly.

The housing 12, here the lower housing part 14 comprises an opening 17, through which at least one control rod 18 of the flushing valve can be passed. The control rod 18 thus projects into the housing 12. The at least one control rod 18 is connected to the at least one release lever 16 in connection.

The housing 12 includes a protruding edge 19 which extends around said opening 17. The edge 19 extends away from the housing 12 and surrounds the opening 17 completely. Of the Fig. 3 can be well recognized that ends in mounting position, the edge 19 below the waterline WL and thus protrudes into the water. At full filling of the cistern 3 so the edge 19 extends to below the Waterline WL. As a result, the opening 17 is sealed accordingly, because no air from above the waterline WL can reach the opening 17.

Preferably, the opening 17 is arranged in a collar-like portion 40, which extends into the housing 12. In the process of suction prevails within the housing 12, a negative pressure. This collar-like portion 40 has the advantage that in the process of sucking the water located within the edge 19 can not be sucked into the housing 12. Consequently, the collar-like portion 40 increases the distance between the highest water level and the opening 17.

The filter element 11 is preferably a filter cartridge 24, which is mounted interchangeably in a housing 25 integrally formed on the receptacle 25. The filter element 11 is mounted on the housing 12. The receptacle 25 preferably extends from the outside of the housing 12 so that it does not have to be removed when replacing the filter cartridge 24. Preferably, the receptacle 25 is integrally formed on the upper housing part 15. Alternatively, the filter element 11 or the filter cartridge 24 may also lie within the housing 12.

The area of the filter element 11, the housing 12 has an opening, not shown here. The opening 11 and the filter element 11 hereby represent the end of the air duct 10. Immediately opposite the filter element 11, the fan 9 is located on the other side of the opening within the housing 12.

Of the Fig. 5 can be further recognized that the motor 15 and the fan 9 are provided with cables 39. About these cables 39, the two elements can be connected to a controller or a power supply. The cables 39 pass through an opening from the interior of the housing 12 through the housing 12, here through the housing upper part 14 therethrough.

Back to Fig. 3 can be further recognized that the filling valve 4 is also mounted on the housing 12. The filling valve 4 is thus in communication with the housing 12. The

Filling valve may be a previously known from the prior art filling valve 4. The filling valve 4 has the function to control the filling of the cistern 3 after Spülauslösung.

For the storage of the filling valve 4, the housing 12, here the lower housing part 14, a receiving element 41. The receiving element 4 extends laterally away from the lower housing part 14 and is integrally formed on the lower housing part 14. At this receiving element 41, the filling valve can be connected to the housing 12.

Preferably, the housing 12 is a plastic injection molded part, the housing lower part 14 being produced separately from the housing upper part 15.

LIST OF REFERENCE NUMBERS

1

flushing

2

suction

3

cistern

4

filling valve

5

rinsing unit

6

flush valve

7

Overflow pipe

8th

triggering element

9

fan

10

air duct

11

filter element

12

casing

13

Housing top

14

Housing bottom

15

engine

16

sear

17

opening

18

control rod

19

edge

20

inner space

21

storage element

22

cam

23

output lever

24

filter cartridge

25

admission

26

ground

27

side walls

29

drain opening

30

waste pipe

31

snap connector

32

storage element

33

lever portion

34

opening

35

Verschwenkzapfen

36

receiving opening

37

approach

38

output shaft

39

electric wire

40

collar-like section

41

receiving element

Claims (16)

Flushing device (1) comprising a suction unit (2) for extracting odors from a sanitary device, such as a toilet bowl or urinal, a cistern (3) for receiving rinse water, a filling valve (4) for filling the cistern (3) and a rinsing unit (5) to provide rinse water,
the flushing unit (5) comprising a flushing valve (6) with an overflow pipe (7) and a triggering element (8) for actuating the flushing valve (6),
wherein the suction unit comprises a fan (9) for extracting air through an air duct (10) which extends at least partially through the cistern (3), and a filter element (11) for filtering the air, the filter element (11) represents the end of the air duct (10), characterized in that
Triggering element (8), fan (9) and filter element (11) are mounted on a common housing (12), in particular in a common housing (12) are arranged. Flushing device (1) according to one of the preceding claims, characterized in that the housing (12) comprises an upper housing part (13) and a lower housing part (14), which are plugged together. Flushing device (1) according to one of the preceding claims, characterized in that the housing (12) provides a part of the air duct (10), wherein the overflow pipe (7) opens into the housing (12). Flushing device (1) according to claim 2 or 3, characterized in that the housing (12) with respect to air, particularly preferably against water, tight, and in that between the upper housing part (13) and the lower housing part (14) preferably arranged a seal is. Flushing device according to one of the preceding claims, characterized characterized in that the housing (12) is located for the most part above the waterline of the cistern, and thus only minimally comes into contact with the flushing water when the cistern (3) is completely filled. Flushing device (1) according to one of the preceding claims, characterized in that the housing (12) is formed separately from the cistern (3) and mounted on the cistern (3), wherein the housing preferably via a snap connection with the cistern (3) in Connection stands and wherein particularly preferably the housing (12) with the housing lower part (14) with the cistern (3) is in communication. Flushing device (1) according to one of the preceding claims, characterized in that the fan (9) and the filter element (11) on the upper housing part (13) and / or the triggering element (8) is at least partially mounted on the lower housing part (14). Flushing device (1) according to one of the preceding claims, characterized in that the triggering element (8) comprises at least one motor (15) and a by the motor (15) driven release lever (16), wherein the motor (15) is preferably a servo motor and / or wherein the motor (15) preferably acts with an output lever (23) on the at least one release lever (16). Flushing device (1) according to claim 8, characterized in that the release lever (16) of the triggering element (8) on the lower housing part (14) and that the motor (15) is mounted on the upper housing part (13). Flushing device (1) according to one of the preceding claims, characterized in that the release lever (16) is pivotably mounted on a bearing element (21), which bearing element (21) with the housing (12), in particular with the housing lower part (14) connectable is. Flushing device (1) according to claim 10, characterized in that the housing (14) comprises a control cam (22) for aligning the triggering element (8) during assembly, wherein the control cam (22) when connecting the bearing element (21) the housing (14) the release lever (16) moves such that the release lever (16) into engagement with the flush valve (6), in particular with a control rod (18) of the flushing valve (6), can be brought. Flushing device (1) according to one of the preceding claims, characterized in that the housing (12) comprises an opening (17) through which at least one control rod (18) of the flushing valve (6) can be passed, wherein the at least one control rod (18) with the at least one trigger lever (16) is in communication. Flushing device (1) according to claim 12, characterized in that the housing has around the said opening (17) around a protruding from the housing (12) edge (19) which extends away from the housing (12) in the interior (20) of Cistern (3) extends to below the waterline (WL) at full load. Flushing device (1) according to one of the preceding claims, characterized in that the filter element (11) is a filter cartridge (24) which is mounted interchangeably in a housing (12) integrally formed receptacle (25), wherein the receptacle (25) is preferably is mounted on the outside of the housing (12), in particular on the upper housing part (15). Flushing device (1) according to one of the preceding claims, characterized in that in the area of the filter element (11) has a further opening, the housing (12) through which air can be fed to the the filter element (11). Flushing device (1) according to one of the preceding claims, characterized in that the filling valve (4) communicates with the housing (12) or is mounted on the housing (12).

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