DK2636805T3

DK2636805T3 - Wash with a drain opening

Info

Publication number: DK2636805T3
Application number: DK13157761.1T
Authority: DK
Inventors: Beat Rüdisüli
Original assignee: Ruedisueli Beat
Priority date: 2012-03-05
Filing date: 2013-03-05
Publication date: 2018-03-26
Also published as: EP2636805B1; EP2636805A1

Abstract

The wash basin has a lid (6) that is arranged on an outflow hole projected downward to a discharge nozzle. A stench trap is formed by the discharge nozzle, and a dip tube (7) is arranged at an underside (8) of the lid. A sealant (10) is sealed against the discharge nozzle. A circle-symmetrical channel is formed between discharge nozzle and an insert and is accessed for cleaning after removal of the lid. A fastening nut (5) is screwed at lower end of the insert and tensioned against the discharge nozzle, for biasing the insert against the discharge nozzle.

Description

The invention relates to an odor trap device for insertion into the drain nozzle of a sink. The invention also relates to a sink having a drain opening which is formed by a drain nozzle downwardly extending from an inner side of the sink, which drain nozzle can be connected to a drain pipe on a lower end, with an odor trap device according to the invention inserted into the sink.

Sinks of the aforementioned kind are generally known in the art. They have the function of facilitating a washing process such as, for example, hand-washing or the like. They are also present in correspondingly large numbers in private households, public facilities and hospitals. In private households and, even more so, in hospitals, it is particularly important for the sink to be able to be cleaned easily and thoroughly from a hygiene point of view. This also applies above all in the region of the siphon, i.e. within the drain below the lid. This is important above all for hygiene reasons. Harmful germs and the like may, in particular, accumulate in the siphon and these have to be regularly removed. A sink of this kind has been disclosed in the state of the art in WO 2009/103864. In this case, the siphon or else the odor trap is formed largely by the sink itself, which is inherently advantageous. However, the siphon in this case has a very low height which is not permitted in many cases. With regard to hygiene, the numerous edges and corners are, moreover, disadvantageous. WO 2007/086736 discloses a sink in which an odor trap is formed by an insert introduced into the drain opening of the sink and a lid mounted on the insert. In this case, an upwardly extending tube of the insert forms a siphon along with a downwardly extending immersion tube of the lid and the drain nozzle of the sink.

This document furthermore discloses a generic odor trap device. The problem addressed by the invention is that of creating an odor trap device of the aforementioned kind which is easy to fit and with which, with regard to long-term use, a particularly good seal can be achieved and in which the insert can easily be replaced where necessary.

The problem is solved by an odor trap device according to Claim 1.

According to a development of the invention, it is provided that the drain nozzle comprises an inwardly protruding shoulder on its lower end, onto which said sealing means is lying. The sealing means preferably forms the lower region or the base of the aforementioned circularly symmetrical channel. This allows particularly thorough cleaning down to the base of channel.

According to a development of the invention, it is provided that the sealing means is an outwardly protruding circumferential ring. This ring is preferably flat and, in particular, in the form of a lip which extends around the insert. This lip or the sealing means preferably lies flexibly on the drain nozzle in the mounted state.

According to a development of the invention, it is provided that the sealing means is integrally formed on an outer side of the insert. It is provided in this case that the insert is preferably made from plastics. These plastics may be flexible, so that the sealing means is clamped against the drain nozzle. A fastening nut is screwed onto the insert at a lower end, which fastening nut is clamped against the drain nozzle and clamps the insert against the drain nozzle. The aforementioned sealing means is also clamped accordingly against the drain nozzle. This produces a particularly good seal. In particular, the insert can be replaced very easily where necessary.

According to a development of the invention, it is provided that the insert is inclined radially inwards towards the top at least in the region of the channel, such that the channel makes for easier accessibility. The insert is preferably tapered upwards roughly conically. This means that the channel is wider towards the top and narrower towards the bottom. The channel can then be cleaned particularly easily, for example using a suitable cloth or the like, either by hand or using a suitable instrument.

The insert is preferably substantially shaped as a hollow cylinder extending about a longitudinal center axis. Advantageously, the insert is configured in one-piece overall and, in particular, is produced from plastics by injection molding. This allows particularly simple and cost-effective production. In addition, the lid is advantageously also designed in one piece and, in particular, produced from plastics by injection molding.

According to a development of the invention, it is provided that the lid is detachably fastened to the insert. In order to clean the channel, the lid need then only be removed from the insert. The channel is then completely accessible from above.

According to a development of the invention, it is provided that the lid has latching means on its underside which are detachably snapped in at the insert. A latch of this kind facilitates particularly easy assembly and dismantling of the lid.

According to a development of the invention, it is provided that the latching means are snapped in on an upper edge of the insert. These latching means may, for example, be designed as tongues which extend radially outwards.

According to a development of the invention, it is provided that between the aforementioned nut and the drain nozzle is arranged a further sealing means which seals a lower end of the drain nozzle against the nut. This sealing means is preferably a sealing ring which is inserted into a corresponding circumferential channel. This seal has the advantage that liquid from the channel cannot penetrate outwards. If there is a leak within the channel, the liquid flows straight into the drain opening or into the disposal line. This second sealing means is arranged radially outside a thread which connects the insert to the aforementioned nut.

The insert comprises an inner side with an engaging structure which serves for rotation of the insert relative to the fastening nut by means of an engaging means. The engaging structure is, in particular, designed in such a manner that in a cross sectional view extending perpendicularly to the longitudinal center axis of the insert it has a non-circular shape. The engaging structure is preferably configured as a polygonal structure which can form a regular geometric shape, particularly in cross section. For the transmission of force from the engaging means to the insert, a hexagonal shape of the engaging structure which is regular in cross section has proved particularly advantageous. The engaging means which is designed to match the engaging structure may, in particular, be a hexagon socket screw key which can be inserted into the insert from above or from below along the longitudinal central axis. The replacement of the insert in the sink with a new insert, which is occasionally necessary for hygiene reasons, is thereby particularly easy to accomplish.

An odor trap device comprising a lid and an insert is specified for insertion into the drain nozzle of a sink. The sink, the lid and the insert are, in particular, designed as described above. The lid has an underside with an immersion tube arranged thereon and also an edge surrounding the immersion tube. The insert is substantially shaped as a hollow cylinder extending around the longitudinal center axis and it has sealing means so that it can lie sealingly against the drain nozzle of the sink.

In this case, the lid can be placed on the insert in such a manner that the insert protrudes along its longitudinal center axis into the immersion tube of the lid. The insert also has an external thread for screwing on a fastening nut.

Further advantageous features result from the dependent patent claims, the following description and the drawing.

An exemplary embodiment of the invention is explained in greater detail below with the help of the drawing. In the drawings:

Fig. 1 shows a spatial representation of a sink in longitudinal section according to a first embodiment, wherein the body of the sink is omitted,

Fig. 2 shows a vertical section through the sink shown in Fig. 1, wherein the body of the sink in this case is only shown in sections,

Fig. 3 shows a spatial representation of a second embodiment of a sink according to the invention in longitudinal section, wherein the body of the sink is only shown in sections,

Fig. 4 shows a vertical section through the sink shown in Fig. 3 in longitudinal section, wherein the sink is only shown in sections and

Fig. 5 shows a cross section along the plane V-V through the sink shown in Fig. 4, wherein the sink is only shown in sections.

Figures 1 and 2 show a first embodiment of a sink. The sink 1 that is shown has a body 23 made of ceramic, plastics or metal, for example. The region of the body 23 shown in Figure 2 may itself be designed at will and as is known in the art. In the center or to the side is located, preferably in the deepest point of the body 23, a drain opening in which a lid 6 is inserted. This lid 6 has a roughly planar lid plate 11 which is spaced on an edge 18 of the inner side of the sink 3 in such a manner that in this case a circular passage is guaranteed. A liquid flowing downwards on the inner side of the sink 3 can therefore flow away through the passage 19. A drain nozzle 4 is integrally formed on the body 23 which extends downwardly and which is preferably circular-cylindrical in design. The drain nozzle 4 has at a lower end 4a a shoulder 12 to which an insert 9 is detachably fastened. This insert 9 is designed as a whole in one piece and is preferably made from plastics. It essentially has the shape of a hollow cylinder extending around a longitudinal center axis 27 and, as can be seen, it has an external thread 20 onto which a nut 5 is screwed from below. This nut 5 lies on an underside of the drain nozzle 4 and damps a sealing means 10 of the insert 9 against the shoulder 12. The nut 5 has a groove 24 on the outside into which a further sealing means 17 is inserted. This sealing means is clamped against the drain nozzle 4 and seals it outwardly. The nut 5 has a further thread 21 on a lower end, onto which a waste pipe not shown here is screwed.

As can be seen, the sealing means 10 is preferably designed in a radially outwardly protruding lip-shaped manner and forms the lower part or the base of a channel R which is covered at the upper end by the lid 6. The channel R is used to receive barrier water and thereby forms a barrier water region. The lid 6 has on an underside 8 an immersion tube 7 which forms a siphon S or else an odor lock with the drain nozzle 4. Above the sealing means 10 the insert 9 is designed in such a manner that it tapers upwards. The channel R is thereby wider towards the top and accessible in a correspondingly easier and more effective manner. This applies above all to cleaning the channel R. In order to clean the siphon S, the lid 6 is removed from the insert 9. The channel R is then ready for cleaning. The lid 6 is then reassembled or latched on again.

The lid 6 is fastened to the insert 9 in this case preferably using fastening means 15 which are latching means and which are snapped in on an upper edge 16 of the insert 9. These latching means 15 are integrally formed on an underside 8 of the lid 6. In particular, these latching means 15 are formed on a lid plate 11 of the lid. When the siphon is cleaned, the lid 6 is reassembled or latched on the insert 9. The channel R is preferably wide enough over the entire region for a finger or the index finger or a cleaning instrument to engage with this channel. Using this finger or instrument and corresponding cleaning means, the channel can then be wiped out or cleaned. Since, as has been mentioned, the channel is preferably circular-cylindrical, cleaning is particularly simple and thorough. A second embodiment of a sink according to the invention is shown in Figures 3 to 5. Elements which have the same or a similar action and function are labelled in Figures 3 to 5 using the same reference numbers in each case as the corresponding elements of the embodiment shown in Figures 1 and 2.

The embodiment depicted in Figures 3 to 5 differs from the embodiment shown in Figures 1 and 2, in that the insert 9 has an inner side 26 with an engagement structure 25. The engagement structure 25, which is configured as a regular hexagon in cross section (see Figure 5), allows the rotation of the insert 9 relative to the fastening nut 5 by means of a correspondingly configured engagement means such as, in particular, a hexagon socket. The engagement means not shown in the figures may be introduced for this purpose from above or from below into the region of the insert 9 tapering upwards, which allows a particularly simple replacement of the insert 9 in the sink 1.

LIST OF REFERENCE NUMBERS 1 Sink S Siphon 2 Drain opening 3 Inner side of the sink 4 Drain nozzle 4a Lower end 5 Nut 6 Lid 7 Immersion tube 8 Underside 9 Insert 10 Sealing means 11 Cover plate 12 Shoulder 13 Outer side 14 Fastening nut 15 Latching means 16 Edge 17 Further sealing means 18 Circumferential edge 19 Passage 20 Thread 21 Thread 22 Hexagon 23 Body 24 Groove 25 Hexagonal inner structure 26 Inner side 27 Longitudinal central axis R Channel

Claims

An odor sealing device for insertion into a sink, wherein the sink has a drain opening (2) formed by a drain plug (4) which projects downwardly from a sink side (3) and which at a lower end can be connected to a drain pipe , wherein the odor sealing device comprises a cover (6) which can be inserted over the drain opening (2), with a circumferential edge (18) for placement over the inside (3) of the sink (1) and with a underside (8), of a plunger tube (7) which, together with said drain plug (4), serves to form an odor seal (S) located below the cover (6), as a whole, in a formed insert (9) having substantially the shape of a hollow cylinder extending around a longitudinal center axis (27) and having at its lower end an external thread (20) and sealing means (10) for sealing abutments against the drain plug (4), and which is suitable for insertion into the drain opening (2) to form together with the drain plug (4) e a circular symmetrical gutter (R) which, after removing the cover (6), is completely accessible for cleaning from above, where the cover (6) can be lowered on the insert (9) in such a way that the insert (9) protrudes into the cover of the cover. (6) diving tube (7) along its longitudinal center axis (27), as well as a fastening nut (5), characterized in that the fastening nut (5) can be screwed onto the external threads (20) of the insert (9) in such a way that the fastening nut (5) is tightened against the drain plug (4) and clamps the insert (9) against the drain plug (4), the insert (9) has an inner side (26) with an attack structure (25) which has a regular geometric, non-circular cross section and serves to rotate the insert (9) relative to the fastening nut (5) by means of an attack means.

Odor sealing device according to claim 1, characterized in that the sealing means (10) is formed on an outer surface (13) of the insert (9).

Odor sealing device according to claim 1 or 2, characterized in that the insert (9) is made of plastic.

Odor-sealing device according to one of claims 1 to 3, characterized in that the cover (6) is removably attached to the insert (9).

Odor sealing device according to one of claims 1 to 4, characterized in that the cover (6) is removably clicked on the insert (9).

Odor sealing device according to one of claims 1 to 5, characterized in that the cover (6) has on its underside (8) engagement means (16) which are removably engaged with the insert (9).

Odor sealing device according to claim 6, characterized in that the engaging means (15) are clamped to an upper edge (16) of the insert.

A wash with a drain opening (2) formed by a drain plug (4) projecting downwardly from a sink side (3) and at a lower end connected to a drain pipe, with an odor sealing device according to one of claims 1 to 7, which is inserted into the sink, where the odor sealing device cover (6) is set down over the drain opening (2) and with its circumferential edge (18) is placed over the inside (3) of the sink (1), where below the cover (6) is located an odor seal (S) formed by said drain plug (4) and plunger tube (7) located on the underside (8) of the cover (6), the insert (9) being inserted into the drain opening (2) and the sealing means ( 10) sealingly abut against the drain plug (4), where the drain plug (4) together with the insert (9) forms a circular symmetrical gutter (R) which, after removing the cover (6), is completely accessible for cleaning from above and where the fastening nut (5) ) is screwed onto the insert (9) at the lower end, which m The nut is tight against the drain plug (4) and clamps the insert (9) against the drain plug (4).

Washing according to claim 8, characterized in that the drain plug (4) has at its lower end (4a) an inwardly projecting shoulder (12) on which said sealing means (10) lies on top.

Wash according to claim 9, characterized in that the sealing means (10) is an outwardly extending circumferential ring.

Wash according to one of claims 8 to 10, characterized in that the insert (9) slopes inwardly at least in the region of the gutter (R), so that the gutter (R) is thereby expanded for easier access.

Wash according to one of claims 8 to 11, characterized in that an additional sealing means (17) is provided between the fastening nut (5) and the drain plug (4), which seals a lower end (4a) of the drain plug (4) against the fastening nut. (5).

Washing according to claim 12, characterized in that the additional sealant (17) is located radially outside an internal thread of the fastening nut (5), by means of which the fastening nut (5) can be screwed onto the external threads of the insert (9) ( 20).