CA2828552A1 - Drain apparatus and method for venting a drain apparatus - Google Patents
Drain apparatus and method for venting a drain apparatus Download PDFInfo
- Publication number
- CA2828552A1 CA2828552A1 CA2828552A CA2828552A CA2828552A1 CA 2828552 A1 CA2828552 A1 CA 2828552A1 CA 2828552 A CA2828552 A CA 2828552A CA 2828552 A CA2828552 A CA 2828552A CA 2828552 A1 CA2828552 A1 CA 2828552A1
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- Prior art keywords
- drain
- valve
- sink
- venting
- drain apparatus
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/122—Pipe-line systems for waste water in building
- E03C1/1222—Arrangements of devices in domestic waste water pipe-line systems
- E03C1/1225—Arrangements of devices in domestic waste water pipe-line systems of air admittance valves
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/22—Outlet devices mounted in basins, baths, or sinks
- E03C1/23—Outlet devices mounted in basins, baths, or sinks with mechanical closure mechanisms
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- Sink And Installation For Waste Water (AREA)
Abstract
Proposed is a drain apparatus (9) in a sink (1), in particular, a kitchen sink, which has a drainage valve (10) for opening and closing a drain opening (8) arranged in the kitchen sink, wherein the drain apparatus (9) has a venting valve (14). Further proposed is a method for venting a drain apparatus (9) in a sink (1), in particular, a kitchen sink, wherein the drain apparatus (9) is provided with a venting valve (14) coupled to a drainage valve (10), said method comprising the following steps: opening the drainage valve (10), wherein water from a basin (2) of the sink (1) passes the drainage valve (10) and flows through a drain (28), and/or draining water from the basin (2) via an overflow and an overflow unit (13) which is fluidically connected to the drain (28);
holding the venting valve (14) open until a predetermined water pressure and/or water level is reached in the drain (28); closing the venting valve (14) when the predetermined water pressure/water level is reached in the drain (28), in particular, when a float (26) in the venting valve (14) is reached by the draining water and is raised, thereby closing the venting valve (14).
holding the venting valve (14) open until a predetermined water pressure and/or water level is reached in the drain (28); closing the venting valve (14) when the predetermined water pressure/water level is reached in the drain (28), in particular, when a float (26) in the venting valve (14) is reached by the draining water and is raised, thereby closing the venting valve (14).
Description
Drain apparatus and method for venting a drain apparatus Description The invention relates to a drain apparatus for a sink according to the preamble of claim 1, a sink according to the preamble of claim 10, and a method for venting a drain apparatus for a sink according to the preamble of claim 11.
In the prior art, drain apparatuses for sinks are known which apparatuses are provided with a drainage valve arranged in a drain such that water that is present in a basin of the sink can be drained off in a controlled manner via the drainage valve.
For example, DE 100 65 057 Al describes a kitchen sink having a main basin and an auxiliary basin, with each basin being provided with a drain. The customary drain fittings and respective drainage valves are installed in each of said drains.
Furthermore, an overflow connected to an overflow unit is customarily provided in the basins of kitchen sinks, said overflow unit being connected to the drainage pipe, on which the drainage valve is also arranged.
However, it is a disadvantage of known drainage apparatuses that the draining water, and particularly also the overflowing water, forces an air column in front of it which, if the air is unable to escape, becomes compressed by the water pressure. As a result, the flow volume during the draining or overflow of the water from the sink basin is reduced since too much air is present in the overall system, and therefore, sufficient suction cannot be generated.
The problem addressed by the present invention is therefore that of providing a drain apparatus and a method for venting a drain apparatus for a sink, by means of which the , .
flow volume in the drain and, if applicable, in the overflow can be substantially improved.
The problem is solved by a drain apparatus having the features according to claim 1, by a sink having the features of claim 10 and by a method having the features according to claim 11. Advantageous further developments of the invention are defined in the dependent claims.
The invention provides a drain apparatus for a sink, in particular, a kitchen sink, comprising a drainage valve for opening and closing a drain opening arranged in the kitchen sink, characterized in that the drain apparatus has a venting valve.
By providing the venting valve, the air in the compressed air column that forms during the draining or overflow of the water from the sink can be vented in a controlled manner so as to reduce the volume of air present throughout the entire system and generate sufficient suction. The configuration according to the invention allows the flow volume throughout the system to be increased significantly. Even in the overflow, for which a flow volume of 12 Umin. is generally required, the flow can be increased by approximately 6 to 8 L/min.
According to one preferred embodiment, the venting valve is coupled or connected to the drainage valve in order to produce a drainage valve having an integrated venting function. The coupling of the venting valve with the drainage valve allows the number of components required for a venting function to be advantageously reduced. The drainage valve with an integrated venting function is also easy to install, which results in a time savings during installation, and furthermore, offers greater safety during removal of the assembly.
According to a further preferred embodiment, the venting valve is arranged in the region of an outflow of the drain apparatus. Furthermore, an outflow of the drain apparatus in which the drainage valve is arranged can be connected to the already mentioned overflow unit.
In the prior art, drain apparatuses for sinks are known which apparatuses are provided with a drainage valve arranged in a drain such that water that is present in a basin of the sink can be drained off in a controlled manner via the drainage valve.
For example, DE 100 65 057 Al describes a kitchen sink having a main basin and an auxiliary basin, with each basin being provided with a drain. The customary drain fittings and respective drainage valves are installed in each of said drains.
Furthermore, an overflow connected to an overflow unit is customarily provided in the basins of kitchen sinks, said overflow unit being connected to the drainage pipe, on which the drainage valve is also arranged.
However, it is a disadvantage of known drainage apparatuses that the draining water, and particularly also the overflowing water, forces an air column in front of it which, if the air is unable to escape, becomes compressed by the water pressure. As a result, the flow volume during the draining or overflow of the water from the sink basin is reduced since too much air is present in the overall system, and therefore, sufficient suction cannot be generated.
The problem addressed by the present invention is therefore that of providing a drain apparatus and a method for venting a drain apparatus for a sink, by means of which the , .
flow volume in the drain and, if applicable, in the overflow can be substantially improved.
The problem is solved by a drain apparatus having the features according to claim 1, by a sink having the features of claim 10 and by a method having the features according to claim 11. Advantageous further developments of the invention are defined in the dependent claims.
The invention provides a drain apparatus for a sink, in particular, a kitchen sink, comprising a drainage valve for opening and closing a drain opening arranged in the kitchen sink, characterized in that the drain apparatus has a venting valve.
By providing the venting valve, the air in the compressed air column that forms during the draining or overflow of the water from the sink can be vented in a controlled manner so as to reduce the volume of air present throughout the entire system and generate sufficient suction. The configuration according to the invention allows the flow volume throughout the system to be increased significantly. Even in the overflow, for which a flow volume of 12 Umin. is generally required, the flow can be increased by approximately 6 to 8 L/min.
According to one preferred embodiment, the venting valve is coupled or connected to the drainage valve in order to produce a drainage valve having an integrated venting function. The coupling of the venting valve with the drainage valve allows the number of components required for a venting function to be advantageously reduced. The drainage valve with an integrated venting function is also easy to install, which results in a time savings during installation, and furthermore, offers greater safety during removal of the assembly.
According to a further preferred embodiment, the venting valve is arranged in the region of an outflow of the drain apparatus. Furthermore, an outflow of the drain apparatus in which the drainage valve is arranged can be connected to the already mentioned overflow unit.
One special further development of the drain apparatus according to the invention provides that a fluid connection for connecting the venting valve to the drain outflow is arranged approximately opposite a connection of the overflow unit to the drain. An arrangement of this type has proven particularly advantageous in terms of the increase in the flow volume.
Another further development of the invention can provide that the venting valve has a valve housing, in which valve housing additional constituents of the venting valve are held. For the purpose of conserving installation space it has proven advantageous for the valve housing, in particular, a pipe section provided for connecting the valve housing to the drain, to be arranged on the drain approximately transversely to the direction of flow in the overflow unit. However, the invention is in no way limited to such an embodiment.
According to another preferred embodiment, a float is provided in the venting valve, in particular, in the valve housing.
The venting valve preferably opens and closes automatically by means of the above-stated float, based upon the water pressure or the water level in the drain, so that the venting function is securely and independently maintained until a critical water pressure is reached. Only when the water pressure and/or water level has reached the stated critical level, at which, in particular, the water level allows the stated float to rise, will the venting valve close automatically in a reliable manner, sealing a vent opening that is provided for ensuring the venting function. As a consequence, excess air is forced out of the drain, so that, once the venting valve has closed, sufficient water suction is present for achieving the desired flow volumes. When the flow volume and therefore also the water pressure and/or water level then decrease again, the venting valve will open again automatically, and the venting function is then available for the next draining or overflow of water from the sink basin.
Another further development of the invention can provide that the venting valve has a valve housing, in which valve housing additional constituents of the venting valve are held. For the purpose of conserving installation space it has proven advantageous for the valve housing, in particular, a pipe section provided for connecting the valve housing to the drain, to be arranged on the drain approximately transversely to the direction of flow in the overflow unit. However, the invention is in no way limited to such an embodiment.
According to another preferred embodiment, a float is provided in the venting valve, in particular, in the valve housing.
The venting valve preferably opens and closes automatically by means of the above-stated float, based upon the water pressure or the water level in the drain, so that the venting function is securely and independently maintained until a critical water pressure is reached. Only when the water pressure and/or water level has reached the stated critical level, at which, in particular, the water level allows the stated float to rise, will the venting valve close automatically in a reliable manner, sealing a vent opening that is provided for ensuring the venting function. As a consequence, excess air is forced out of the drain, so that, once the venting valve has closed, sufficient water suction is present for achieving the desired flow volumes. When the flow volume and therefore also the water pressure and/or water level then decrease again, the venting valve will open again automatically, and the venting function is then available for the next draining or overflow of water from the sink basin.
The components of the venting valve, along with the remainder of the drain apparatus with the exception of any connecting and fastening means that may be present, such as screws or the like, are preferably made of plastic (injection molded), without limiting the scope of the invention to such an embodiment.
Also according to the invention, a sink, in particular, a kitchen sink, is provided, said sink having at least one (sink) basin and one drain opening arranged in said basin.
Optionally, the sink may have an overflow provided in the basin or on the basin. The sink is characterized by a drain apparatus according to the invention with a venting valve, wherein the drain apparatus can particularly also be fluidically connected to the overflow, provided such an overflow is present, which may ordinarily be the case.
A sink equipped in this manner satisfies the requirements specified above with respect to flow volume, particularly in the overflow.
In addition, a method for venting a drain apparatus for a sink, in particular a kitchen sink, is provided according to the invention, wherein the drain apparatus is provided with a venting valve coupled to a drainage valve, said method comprising the following steps: opening the drainage valve, wherein water from a basin of the sink passes the drainage valve and flows through a drain, and/or draining water out of the basin via an overflow unit which is fluidically connected to the drain; holding the venting valve open until a predetermined water pressure or water level is reached in the drain for the purpose of venting the drain; closing the venting valve once the predetermined water pressure/water level is reached in the drain, preferably when a float in the venting valve is reached by the draining water.
With the method according to the invention, a sink drain can be vented in a simple and cost-effective manner such that the flow volume during the draining of water out of the basin of the sink can be increased significantly both throughout the entire system and in the overflow.
Also according to the invention, a sink, in particular, a kitchen sink, is provided, said sink having at least one (sink) basin and one drain opening arranged in said basin.
Optionally, the sink may have an overflow provided in the basin or on the basin. The sink is characterized by a drain apparatus according to the invention with a venting valve, wherein the drain apparatus can particularly also be fluidically connected to the overflow, provided such an overflow is present, which may ordinarily be the case.
A sink equipped in this manner satisfies the requirements specified above with respect to flow volume, particularly in the overflow.
In addition, a method for venting a drain apparatus for a sink, in particular a kitchen sink, is provided according to the invention, wherein the drain apparatus is provided with a venting valve coupled to a drainage valve, said method comprising the following steps: opening the drainage valve, wherein water from a basin of the sink passes the drainage valve and flows through a drain, and/or draining water out of the basin via an overflow unit which is fluidically connected to the drain; holding the venting valve open until a predetermined water pressure or water level is reached in the drain for the purpose of venting the drain; closing the venting valve once the predetermined water pressure/water level is reached in the drain, preferably when a float in the venting valve is reached by the draining water.
With the method according to the invention, a sink drain can be vented in a simple and cost-effective manner such that the flow volume during the draining of water out of the basin of the sink can be increased significantly both throughout the entire system and in the overflow.
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In what follows, one embodiment of the invention will be described in greater detail in reference to the attached set of drawings. The drawings show Fig. 1 a perspective view of an example of a sink according to the prior art;
Fig. 2 a plan view of a drain apparatus according to one embodiment;
Fig. 3 an exploded view of the drain apparatus illustrated in Figure 2;
Fig. 4A-4D various perspective views of the drain apparatus illustrated in Figure 2;
Fig. 5A-5E additional views of the drain apparatus illustrated in Figure 2;
and Fig. 6 the drain apparatus shown in Figure 2 from the bottom.
Figure 1 shows, by way of example, a sink in the form of a kitchen sink, which is identified by reference sign 1. The sink 1 has a sink basin 2 and a sink rim 3 that extends around the upper edge of the sink basin 2. According to the illustration in Figure 1, the sink 1 further comprises a drainboard surface 4 and an auxiliary or additional basin 5. Between the sink basin 2 and the sink rim 3, the sink 1 has a substantially flat region 6 in which a fitting 7 is arranged. In the sink basin 2, a drain opening 8 that can be closed by a drainage valve is arranged, via which opening water can be drained out of the sink basin 2. A drain apparatus, which is not shown in Figure 1 and which will be described in greater detail below in reference to Figures 2 if, is generally connected to the drain opening 8 in the sink basin 2. The already mentioned drainage valve is also physically associated with this drain apparatus. The drain apparatus is usually connected to the sink basin 2 from beneath in the region of the drain opening 8, and is used for draining water from the sink basin 2 in a defined manner. Water can further be drained from the sink basin 2 via an overflow, not shown here, which is connected via a corresponding overflow unit to a drain pipe of the drain apparatus.
Figure 2 shows a plan view of a drain apparatus 9 according to one embodiment.
The drain apparatus 9 comprises a drainage valve 10, which can be inserted into a drain opening 8 in a sink basin 2 (see Figure 1). Here, the strainer 10a of the drainage valve which is visible and/or accessible from the sink basin 2 is substantially clear, said strainer 10a comprising a plurality of elongate openings 11 arranged in a circular pattern around a round plate 12. The actual closure element of the drainage valve 10 is not visible in the view according to Figure 2. It moves up and down inside the drain opening 8 when actuated by a sink user, accordingly sealing the drain opening 8 or opening said opening at least partially, in order to hold water in the sink basin 2 or drain it therefrom.
This function is clearly known from the prior art to a person skilled in the art. Also clear from the plan view is a pipe section 13, which projects laterally ¨
transversely to the path of the actual drainage direction ¨ from the drainage valve 10 and which can be connected to an overflow unit or is itself part of said overflow unit. A
venting valve 14 is coupled to the drainage valve 10, of which venting valve only a housing 14a with a cover piece 27 is visible in Figure 2, wherein a venting opening is provided in the cover piece 27 at reference sign 27a. This will be specified in greater detail further below.
Figure 3 shows an exploded view of the drain apparatus 9 illustrated in Figure 2, as individual parts. As is clear from this diagram, the uppermost element of the drainage valve 10, namely the strainer 10a, has a concavely curved plate 15, which is provided with the plurality of slot-type openings 11. The plate 15 can be held in an insert element 16, designed as having a congruent shape and a plurality of openings 17 arranged in a circular pattern, or can rest on the surface of said element. The insert element 16 is inserted into the drain opening 8 of a sink basin (see Figure 1). To ensure that the insert element 16 can be installed in the sink basin so as to form a tight seal, a ring gasket 18 and a ring-shaped connecting element 19 are provided. To open and/or to close the drainage valve 10, a preferably remotely controllable mechanism 20 is provided, by which the concavely curved plate 15 with the openings 11 can be raised and/or lowered. On its underside, the plate 15 has flexible, preferably rubber-elastic attachments in a known manner, via which the openings 17 in the insert element 16 can be sealed when the plate 15 is in the lowered state in order to hold water in the sink basin 2 (cf., Figure 1). This is well known to a person skilled in the art of conventional sinks, in particular, kitchen sinks. Below the sink basin, a connection element 21 with an outflow 28 is arranged in the region of the drain opening 8, from the side of which connection element the pipe section 13 projects and to which ¨ particularly downward ¨
additional pipe elements, for example, a siphon, can be connected. The outflow 28 is provided with an external thread 29, so that additional pipe elements can be screwed onto it. On the left side of the diagram, the venting valve 14 is shown, which can be connected via a pipe section 22 to the drainage valve 10. In order to produce a tight connection, an 0-ring 23 is provided for the area of connection and furthermore, a screw 24 is provided for attaching the connection element 21, which is screwed and/or can be screwed into a suitable opening in the connection element 21 that is not shown in Figure 3. The venting valve 14 comprises a valve housing 14a, which is attached to the pipe section 22 and is integrally connected thereto. The valve housing 14a is designed substantially in the manner of a hollow circular cylinder, and accommodates a ring gasket 25, a float 26, a sealing element 26a and a cover piece 27, according to the illustration of Figure 3. The above-described vent opening 27a is provided in the cover piece 27.
When water travels through the pipe section 22 into the interior of the valve housing 14a, the float 26 rises, and with it the sealing element 26a moves upward until sealing element 26a seals the vent opening 27a in the cover piece 27. Accordingly, the venting valve 14 remains open until water reaches the float 26 in the venting valve 14 and allows it to float upward enough to automatically close the venting valve 14.
When the . .
water pressure and/or the water level drop, the venting valve 14 opens again automatically.
Figures 4A to 4D show various perspective views of the drain apparatus 9 illustrated in Figure 2, in which the drainage valve 10 with the integrated venting function and/or with the venting valve 14 coupled thereto is shown in the assembled state. Because the venting valve 14 is seated tight against the drainage valve 10 and/or the drain 8 (cf., Figure 1), a savings of installation space is realized, and at the same time, installation of the drain unit 9 is simplified.
Figures 5A to 5E show additional views of the drain apparatus 9 illustrated in Figure 2, in which Figure 5A shows a cross-sectional view of the drain apparatus 9 and Figures 5B to 5E show various side views which illustrate the drain apparatus 9 from the side, rotated by various angles relative to one another. The same reference signs are used in all the figures to identify the same elements, or at least similarly acting elements.
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Finally, Figure 6 shows the drain apparatus 9 from below, wherein here, the connection of the venting valve 14 to the drainage valve 10 via the pipe section 22 is particularly clear.
In particular, it is clear from Figure 6 that the venting valve 14 with the valve housing 14a thereof and/or the pipe section 22 formed thereon is attached to a connecting element 21a of the connection piece 21, which connecting element 21a opens up substantially directly opposite the pipe section 13 for the overflow unit into the drain 28.
As is further clear from Figure 6, an opening cross-section (not explicitly clear) of the connecting element 21a is substantially smaller than the opening cross-section of the pipe section 13.
The connecting element 21a itself extends first in the extension of the pipe section 13, and then bends approximately 90 to the side, wherein the pipe section 22 of the valve . , housing 14a is attached in this bent section of the connecting element 21a, particularly onto the connecting element 21a.
As is further clear from Figure 6, a fastening tab 22a is formed on or attached to the side of the venting valve 14 in the area of pipe section 22, which tab preferably interacts integrally with a projection 21b formed on the connecting element 21a. The stated projection 21d preferably has an internal thread, into which the screw 24 is screwed.
With the head of said screw, the screw 24 fastens the venting valve 14 and/or the valve housing 14a to the stated fastening tab 22a in the area of the projection 21b on the connection piece 21, in particular, in a non-positive and/or positive manner.
This ensures a secure fastening of the venting valve 14 to the rest of the drain apparatus 9.
As is further clear from Figure 6, the venting valve 14 and/or the valve housing 14a is arranged at least partially in the projection below the drain opening 8 and/or the insert element 16, and accordingly, only a small amount of additional installation space is required in the lateral direction.
List of Reference Signs 1 Sink 2 Sink basin 3 Sink rim 4 Drainboard surface Auxiliary basin 6 Flat region 7 Fitting 8 Drain opening 9 Drain apparatus Drainage valve 10a Strainer 11 Openings 12 Round plate 13 Pipe section 14 Venting valve 14a Valve housing Concavely curved plate 16 Insert element 17 Openings 18 Ring gasket 19 Connecting element Mechanism 21 Connection piece 21a Connecting element 22 Pipe section 22a Fastening tab 23 0-ring 24 Screw Ring gasket 26 Float 26a Sealing element 27 Cover piece 27a Venting opening 28 Drain 29 External thread
In what follows, one embodiment of the invention will be described in greater detail in reference to the attached set of drawings. The drawings show Fig. 1 a perspective view of an example of a sink according to the prior art;
Fig. 2 a plan view of a drain apparatus according to one embodiment;
Fig. 3 an exploded view of the drain apparatus illustrated in Figure 2;
Fig. 4A-4D various perspective views of the drain apparatus illustrated in Figure 2;
Fig. 5A-5E additional views of the drain apparatus illustrated in Figure 2;
and Fig. 6 the drain apparatus shown in Figure 2 from the bottom.
Figure 1 shows, by way of example, a sink in the form of a kitchen sink, which is identified by reference sign 1. The sink 1 has a sink basin 2 and a sink rim 3 that extends around the upper edge of the sink basin 2. According to the illustration in Figure 1, the sink 1 further comprises a drainboard surface 4 and an auxiliary or additional basin 5. Between the sink basin 2 and the sink rim 3, the sink 1 has a substantially flat region 6 in which a fitting 7 is arranged. In the sink basin 2, a drain opening 8 that can be closed by a drainage valve is arranged, via which opening water can be drained out of the sink basin 2. A drain apparatus, which is not shown in Figure 1 and which will be described in greater detail below in reference to Figures 2 if, is generally connected to the drain opening 8 in the sink basin 2. The already mentioned drainage valve is also physically associated with this drain apparatus. The drain apparatus is usually connected to the sink basin 2 from beneath in the region of the drain opening 8, and is used for draining water from the sink basin 2 in a defined manner. Water can further be drained from the sink basin 2 via an overflow, not shown here, which is connected via a corresponding overflow unit to a drain pipe of the drain apparatus.
Figure 2 shows a plan view of a drain apparatus 9 according to one embodiment.
The drain apparatus 9 comprises a drainage valve 10, which can be inserted into a drain opening 8 in a sink basin 2 (see Figure 1). Here, the strainer 10a of the drainage valve which is visible and/or accessible from the sink basin 2 is substantially clear, said strainer 10a comprising a plurality of elongate openings 11 arranged in a circular pattern around a round plate 12. The actual closure element of the drainage valve 10 is not visible in the view according to Figure 2. It moves up and down inside the drain opening 8 when actuated by a sink user, accordingly sealing the drain opening 8 or opening said opening at least partially, in order to hold water in the sink basin 2 or drain it therefrom.
This function is clearly known from the prior art to a person skilled in the art. Also clear from the plan view is a pipe section 13, which projects laterally ¨
transversely to the path of the actual drainage direction ¨ from the drainage valve 10 and which can be connected to an overflow unit or is itself part of said overflow unit. A
venting valve 14 is coupled to the drainage valve 10, of which venting valve only a housing 14a with a cover piece 27 is visible in Figure 2, wherein a venting opening is provided in the cover piece 27 at reference sign 27a. This will be specified in greater detail further below.
Figure 3 shows an exploded view of the drain apparatus 9 illustrated in Figure 2, as individual parts. As is clear from this diagram, the uppermost element of the drainage valve 10, namely the strainer 10a, has a concavely curved plate 15, which is provided with the plurality of slot-type openings 11. The plate 15 can be held in an insert element 16, designed as having a congruent shape and a plurality of openings 17 arranged in a circular pattern, or can rest on the surface of said element. The insert element 16 is inserted into the drain opening 8 of a sink basin (see Figure 1). To ensure that the insert element 16 can be installed in the sink basin so as to form a tight seal, a ring gasket 18 and a ring-shaped connecting element 19 are provided. To open and/or to close the drainage valve 10, a preferably remotely controllable mechanism 20 is provided, by which the concavely curved plate 15 with the openings 11 can be raised and/or lowered. On its underside, the plate 15 has flexible, preferably rubber-elastic attachments in a known manner, via which the openings 17 in the insert element 16 can be sealed when the plate 15 is in the lowered state in order to hold water in the sink basin 2 (cf., Figure 1). This is well known to a person skilled in the art of conventional sinks, in particular, kitchen sinks. Below the sink basin, a connection element 21 with an outflow 28 is arranged in the region of the drain opening 8, from the side of which connection element the pipe section 13 projects and to which ¨ particularly downward ¨
additional pipe elements, for example, a siphon, can be connected. The outflow 28 is provided with an external thread 29, so that additional pipe elements can be screwed onto it. On the left side of the diagram, the venting valve 14 is shown, which can be connected via a pipe section 22 to the drainage valve 10. In order to produce a tight connection, an 0-ring 23 is provided for the area of connection and furthermore, a screw 24 is provided for attaching the connection element 21, which is screwed and/or can be screwed into a suitable opening in the connection element 21 that is not shown in Figure 3. The venting valve 14 comprises a valve housing 14a, which is attached to the pipe section 22 and is integrally connected thereto. The valve housing 14a is designed substantially in the manner of a hollow circular cylinder, and accommodates a ring gasket 25, a float 26, a sealing element 26a and a cover piece 27, according to the illustration of Figure 3. The above-described vent opening 27a is provided in the cover piece 27.
When water travels through the pipe section 22 into the interior of the valve housing 14a, the float 26 rises, and with it the sealing element 26a moves upward until sealing element 26a seals the vent opening 27a in the cover piece 27. Accordingly, the venting valve 14 remains open until water reaches the float 26 in the venting valve 14 and allows it to float upward enough to automatically close the venting valve 14.
When the . .
water pressure and/or the water level drop, the venting valve 14 opens again automatically.
Figures 4A to 4D show various perspective views of the drain apparatus 9 illustrated in Figure 2, in which the drainage valve 10 with the integrated venting function and/or with the venting valve 14 coupled thereto is shown in the assembled state. Because the venting valve 14 is seated tight against the drainage valve 10 and/or the drain 8 (cf., Figure 1), a savings of installation space is realized, and at the same time, installation of the drain unit 9 is simplified.
Figures 5A to 5E show additional views of the drain apparatus 9 illustrated in Figure 2, in which Figure 5A shows a cross-sectional view of the drain apparatus 9 and Figures 5B to 5E show various side views which illustrate the drain apparatus 9 from the side, rotated by various angles relative to one another. The same reference signs are used in all the figures to identify the same elements, or at least similarly acting elements.
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Finally, Figure 6 shows the drain apparatus 9 from below, wherein here, the connection of the venting valve 14 to the drainage valve 10 via the pipe section 22 is particularly clear.
In particular, it is clear from Figure 6 that the venting valve 14 with the valve housing 14a thereof and/or the pipe section 22 formed thereon is attached to a connecting element 21a of the connection piece 21, which connecting element 21a opens up substantially directly opposite the pipe section 13 for the overflow unit into the drain 28.
As is further clear from Figure 6, an opening cross-section (not explicitly clear) of the connecting element 21a is substantially smaller than the opening cross-section of the pipe section 13.
The connecting element 21a itself extends first in the extension of the pipe section 13, and then bends approximately 90 to the side, wherein the pipe section 22 of the valve . , housing 14a is attached in this bent section of the connecting element 21a, particularly onto the connecting element 21a.
As is further clear from Figure 6, a fastening tab 22a is formed on or attached to the side of the venting valve 14 in the area of pipe section 22, which tab preferably interacts integrally with a projection 21b formed on the connecting element 21a. The stated projection 21d preferably has an internal thread, into which the screw 24 is screwed.
With the head of said screw, the screw 24 fastens the venting valve 14 and/or the valve housing 14a to the stated fastening tab 22a in the area of the projection 21b on the connection piece 21, in particular, in a non-positive and/or positive manner.
This ensures a secure fastening of the venting valve 14 to the rest of the drain apparatus 9.
As is further clear from Figure 6, the venting valve 14 and/or the valve housing 14a is arranged at least partially in the projection below the drain opening 8 and/or the insert element 16, and accordingly, only a small amount of additional installation space is required in the lateral direction.
List of Reference Signs 1 Sink 2 Sink basin 3 Sink rim 4 Drainboard surface Auxiliary basin 6 Flat region 7 Fitting 8 Drain opening 9 Drain apparatus Drainage valve 10a Strainer 11 Openings 12 Round plate 13 Pipe section 14 Venting valve 14a Valve housing Concavely curved plate 16 Insert element 17 Openings 18 Ring gasket 19 Connecting element Mechanism 21 Connection piece 21a Connecting element 22 Pipe section 22a Fastening tab 23 0-ring 24 Screw Ring gasket 26 Float 26a Sealing element 27 Cover piece 27a Venting opening 28 Drain 29 External thread
Claims (11)
1. A drain apparatus (9) for a sink (1), in particular, a kitchen sink, comprising a drainage valve (10) for opening and closing a drain opening (8) arranged in the kitchen sink, characterized in that the drain apparatus (9) has a venting valve (14).
2. The drain apparatus (9) according to claim 1, characterized in that the venting valve (14) is connected to the drainage valve (10) so as to provide a drainage valve (10) having an integrated venting function.
3. The drain apparatus (9) according to claim 1 or 2, characterized in that the venting valve (14) is provided in the region of a drain (28) of the drain apparatus (9) in which the drainage valve (10) is arranged.
4. The drain apparatus (9) according to claim 3, characterized in that the drain (28) is connected to an overflow unit (13) for the sink (1).
5. The drain apparatus (9) according to claim 4, characterized in that a fluid connection for connecting the venting valve (14) to the drain (28) is arranged approximately opposite a connection of the overflow unit (13) to the drain (28).
6. The drain apparatus (9) according to claims 1 to 5, characterized in that the venting valve (14) has a valve housing (14a).
7. The drain apparatus (9) according to any one of claims 1 to 6, characterized in that a float (26) is provided in the venting valve (14).
8. The drain apparatus (9) according to claim 7, characterized in that the float (26) is arranged in the valve housing (14a) according to claim 6.
9. The drain apparatus (9) according to claim 7 or 8, characterized in that the venting valve (14) opens and closes as a function of the water pressure and/or water level in the drain (28) and/or in the overflow unit (13), preferably in that the float (26) opens or closes an opening (27a) on the valve housing (14a).
10. A sink (1), in particular, a kitchen sink, comprising at least one basin (2) and a drain opening (9) located in the basin (2), and optionally an overflow provided in or on the basin (2), characterized by a drain apparatus (9) with a venting valve (14) according to any one of the preceding claims, wherein the overflow unit (13) is preferably fluidically connected to the overflow.
11. A method for venting a drain apparatus (9) of a sink (1), in particular, a kitchen sink, wherein the drain apparatus (9) is provided with a venting valve (14) coupled to a drainage valve (10), wherein the method comprises the following steps:
- opening the drainage valve (10), allowing water from a basin (2) of the sink (1) to pass the drainage valve (10) and flow through a drain (28), and/or draining water from the basin (2) via an overflow and an overflow unit (13) which is fluidically connected to the drain (28);
- holding the venting valve (14) open until a predetermined water pressure and/or water level is reached in the drain (28);
- closing the venting valve (14) when the predetermined water pressure/water level in the drain (28) is reached, particularly when a float (26) in the venting valve (14) is reached by the draining water and is raised, thereby closing the venting valve (14).
- opening the drainage valve (10), allowing water from a basin (2) of the sink (1) to pass the drainage valve (10) and flow through a drain (28), and/or draining water from the basin (2) via an overflow and an overflow unit (13) which is fluidically connected to the drain (28);
- holding the venting valve (14) open until a predetermined water pressure and/or water level is reached in the drain (28);
- closing the venting valve (14) when the predetermined water pressure/water level in the drain (28) is reached, particularly when a float (26) in the venting valve (14) is reached by the draining water and is raised, thereby closing the venting valve (14).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012217296.3A DE102012217296A1 (en) | 2012-09-25 | 2012-09-25 | Drain device and method for venting a drain device |
| DE102012217296.3 | 2012-09-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2828552A1 true CA2828552A1 (en) | 2014-03-25 |
Family
ID=49223550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2828552A Abandoned CA2828552A1 (en) | 2012-09-25 | 2013-09-25 | Drain apparatus and method for venting a drain apparatus |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2711475B1 (en) |
| CA (1) | CA2828552A1 (en) |
| DE (1) | DE102012217296A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019145051A1 (en) | 2018-01-29 | 2019-08-01 | Franke Technology And Trademark Ltd | Overflow system for a sink |
| IT201900004597A1 (en) * | 2019-03-27 | 2020-09-27 | Ravani S R L | Aerator of a drain for sanitary ware, and together comprising a drain and an aerator |
| CN111779087B (en) * | 2020-07-25 | 2021-07-30 | 江西旺来科技有限公司 | Practical vegetable washing basin with filter screen |
| US11149422B1 (en) | 2020-09-18 | 2021-10-19 | Zurn Industries, Llc | Sink |
| US11549247B2 (en) | 2020-09-18 | 2023-01-10 | Zurn Industries, Llc | Sink |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9102152U1 (en) * | 1990-03-06 | 1991-05-16 | Geberit Ag, Jona, St.Gallen | Overflow and drain fittings for sanitary appliances |
| DE20019328U1 (en) * | 2000-11-11 | 2001-02-15 | Scherer, Norbert, 66773 Schwalbach | Sink overflow |
| DE10065057A1 (en) | 2000-12-27 | 2002-07-04 | Niro Plan Ag Zug | Kitchen sink with an additional sink |
| EP2045403B1 (en) * | 2007-10-03 | 2012-03-28 | Geberit International AG | Outlet fitting with integrated overflow |
| DE202010015319U1 (en) * | 2010-11-12 | 2013-02-19 | Viega Gmbh & Co. Kg | Drain fitting with concealed positionable overflow |
-
2012
- 2012-09-25 DE DE102012217296.3A patent/DE102012217296A1/en not_active Withdrawn
-
2013
- 2013-09-11 EP EP13183842.7A patent/EP2711475B1/en active Active
- 2013-09-25 CA CA2828552A patent/CA2828552A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| DE102012217296A1 (en) | 2014-03-27 |
| EP2711475B1 (en) | 2019-10-16 |
| EP2711475A1 (en) | 2014-03-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20180712 |
|
| FZDE | Dead |
Effective date: 20201202 |