Discharging device and method for filtering and discharging solids from a liquid

Abstract

The invention relates to a discharging device (2) for a basin (1), in particular for a sink or a washbasin, for filtering and discharging solids (3) from a liquid (4), having a filter component (6), through which the liquid (4) is able to drain, whereas the solids (3) remain on the surface (7) of the filter component (6). The filter component (6) can be removed from a housing without tools.

Description

[0001] Discharge device and method for filtering and discharging solids from a liquid

[0002] This application claims priority from German patent application No. 10 2023 200 098.9, the contents of which are incorporated herein by reference.

[0003] The invention relates to a drainage device for a basin, in particular for a sink or wash basin, for filtering and draining solids from a liquid, according to the preamble of claim 1.

[0004] The invention also relates to a basin, in particular a sink or a wash basin, comprising a drainage device for removing solids from a liquid flowing out of the basin.

[0005] The invention also relates to a method for filtering and removing solids from a draining liquid of a basin.

[0006] Basins are available in a wide variety of designs from the state of the art. In particular, kitchen sinks and personal hygiene wash basins are available in numerous variations. Such basins are used in households, industry, and the medical field, for example.

[0007] In most cases, hygiene, especially the germ-free and cleanliness of the tanks, is of central importance. For example, organic solids or solids (e.g.,

[0008] B. food scraps or other waste) in the drainage area of ​​the basins can lead to a high germ load and in particular to an odor impairment.

[0009] To minimize odor pollution, a pool drain often features a trap or siphon. However, these traps are sometimes unable to adequately suppress odors, especially when organic solids accumulate within the siphon beyond a certain level. Furthermore, these traps can become clogged due to the accumulation of solids and require regular mechanical and / or chemical cleaning.

[0010] To ensure reliable drainage of wastewater from sinks, especially kitchen sinks, waste shredders are sometimes used to shred solids flushed into a sink drain line along with the wastewater. One such waste shredder is known, for example, from EP 0 443 310 A2. However, due to the typically motor-driven shredding components, such shredding systems are complex to manufacture and expensive for consumers to purchase. Furthermore, waste shredders are sometimes unusable or not legally permitted. Furthermore, despite waste shredding, blockages can still occur, as even the shredded waste can build up over time.

[0011] A simple and cost-effective alternative for separating solids from the wastewater flowing out of a basin is to install a sieve near the basin's outlet to collect the waste. Such a sieve is typically shaped like a basket in which the waste is collected. To prevent clogging, the sieve must be cleaned regularly. This usually involves manually removing the sieve from the drain line and emptying it. However, users find manual cleaning of such sieves unpleasant and uncomfortable.

[0012] Finally, DE 20 2014 104 522 U1 proposes a basin drain fitting with a pivoting strainer for retaining waste flushed into the drain fitting with domestic water. The drain body, which includes the strainer, has a drain opening with a closure. While this may improve the convenience of cleaning the strainer, frequent user intervention is still required.

[0013] In view of the known state of the art, it is an object of the present invention to provide a discharge device for filtering and removing solids from a liquid, which allows particularly convenient operation by the user and is preferably largely automated. Finally, it is also an object of the invention to provide a basin with a discharge device for filtering and removing solids, which allows particularly convenient operation by the user and is preferably largely automated.

[0014] Furthermore, it is an object of the invention to provide a method for filtering and removing solids from a liquid, which offers a particularly high level of user comfort and which is preferably largely automated.

[0015] The problem is solved for the discharge device in particular by the features listed in claim 1. With regard to the basin, the problem is solved in particular by the features of claim 14 and with regard to the method in particular by claim 15.

[0016] The dependent claims and the features described below relate to advantageous embodiments and variants of the invention.

[0017] The claims are not to be understood as limiting the subject matter of the invention. The invention encompasses, in particular, further aspects that may, in themselves, be the subject of claims.

[0018] A drainage device for a basin, in particular for a sink or wash basin, for filtering and removing solids from a liquid is provided, comprising a filter component, in particular a flat filter component, through which the liquid can flow away, whereas the solids remain on the surface of the filter component.

[0019] According to one aspect, the filter component is removable, in particular removable without tools.

[0020] The discharge device can preferably be arranged, in particular fastened, in a liquid drain of the basin.

[0021] The filter component can, in particular, be a filter or a sieve. The filter component preferably has a filter surface that is as flat as possible, particularly preferably as planar as possible, and is therefore also referred to herein as a "flat" filter component.

[0022] The filter component can also be formed by a plurality of essentially one-dimensional filter elements, e.g., wires. The filter elements can exert a filtering effect individually or in combination with other filter elements, particularly in cooperation with adjacent filter elements.

[0023] The liquid is preferably water (especially drinking water, tap water, or industrial water). However, in principle, any liquid from which solids are to be removed can be used.

[0024] The proposed drainage system is particularly suitable for use with sinks or wash basins. In principle, however, the drainage system can be used with any basin where there is a need to filter and drain solids from the liquid flowing through the basin. For example, the basin can also be designed as a bathtub, shower tray, hair washing basin, or other basin, but especially as a basin for cleaning body parts, plants (parts), and / or objects.

[0025] According to a first variant of the invention, the flat filter component is clamped in a circumferential manner on a roller conveyor comprising at least two rollers. At least one of the rollers is drivable to move the flat filter component in a circumferential manner in order to remove the filtered solids, in particular to remove the filtered solids as needed.

[0026] The aforementioned roller conveyor can also be referred to as a "roller conveyor" or "multi-roller arrangement." The preferably revolving roller conveyor can have exactly two rollers, or more than two, such as three rollers, four rollers, five rollers, six rollers, or even more. However, two rollers are usually sufficient to clamp the flat filter component accordingly. The rollers of the roller conveyor are preferably spaced apart from each other.

[0027] According to the invention, according to an alternative, second variant, the flat filter component is clamped onto a movable slider of a sliding guide system and can be moved circumferentially along the sliding guide system by moving the slider in order to remove the filtered solids, in particular to remove the filtered solids as required.

[0028] The sliding guide system can, in particular, comprise a sliding bearing and / or a guide rail along which the slider is movable. The slider itself is also preferably completely circumferential (e.g., within the sliding bearing or within the guide rail) and can, for example, be designed as a slider slidably mounted in the sliding bearing or in the guide rail, preferably comprising a roller or ball bearing.

[0029] According to a further alternative, the filter component is pivotable and / or deformable. It can, in particular, be pivotable and / or deformable about one or more axes. It can, in particular, be elastically deformable, in particular reversibly deformable.

[0030] In particular, it can be designed as a pivotable filter plate.

[0031] The filter plate can be formed as a single piece. It can also be divided into two or more parts. It can, in particular, have one or more joints, in particular joint axes. It can also be designed to be flexible. In this case, it can preferably be held, in particular guided, by holding and / or guiding means.

[0032] Designing the filter component with one or more hinged axes enables a particularly space-saving design of the discharge device. Using one or more hinged axes, the overall height can be reduced. Furthermore, overflow of liquid into the discharge outlet can be reduced, particularly avoided, or preferably prevented.

[0033] The filter plate can be mounted in a guided manner, particularly in the area of ​​the joint axes. This allows a predetermined displacement trajectory to be specified.

[0034] The filter component, in particular the filter plate, can be displaceable by motor, in particular pivotable.

[0035] The displacement of the filter component, in particular the filter plate, can be supported mechanically, in particular by one or more springs.

[0036] The displacement of the filter component, in particular the filter plate, can be limited by one or more stop elements. These can allow the filter component, in particular the filter plate, to be knocked out or removed.

[0037] The filter component, in particular the filter plate, can have one, two, or three defined positions between which it can be displaced. It can, in particular, have one or two defined end positions that limit the maximum displacement range. It can also have a defined position that is between its end positions, in particular spaced apart from them. "Distance" can, in particular, also refer to an angular distance.

[0038] An end position can be formed by a knock-off position. Shifting to the knock-off position serves to transfer solids from the filter component into the discharge of the housing assembly, particularly into the collection container. The knock-off position can be defined by one of the stop elements.

[0039] An end position can be used to rinse the filter component. This allows impurities from the filter component to be flushed into the housing assembly's drain. This end position is also referred to as the rinse position. Preferably, the filter component is arranged in the housing assembly in the rinse position in such a way that the transport or drainage of liquid from the filter component to the housing assembly's discharge outlet is prevented.

[0040] A defined position can serve as the operating position of the filter component. In this operating position, the filter component, in particular the filter plate, can be aligned horizontally or with an upward slope toward the discharge, at least in some areas, in particular with a monotonous upward slope.

[0041] The filter component can be mechanically supported in the operating position. In particular, it can rest on one or more support or stop elements in the operating position. To move the filter component from the operating position to the rinsing position, the support or stop elements can be movable, in particular retractable or foldable.

[0042] The housing assembly may include one or more sound-damping means.

[0043] The housing assembly itself and / or the stop elements can have sound-damping means.

[0044] For example, before reaching the knock-off position, a torque can be generated by an electric motor that runs counter to the direction of rotation of the filter component.

[0045] It may also be possible to reduce the motor torque before reaching the downstroke position. This is particularly possible with a spring-loaded mechanism.

[0046] It is also possible to provide the stop elements with a rubber coating or springs, or to make them elastic. This can also achieve sound attenuation. A particular advantage of the invention is that the solids are first advantageously filtered out of the liquid by the flat filter component and then removed in a defined transport direction by driving at least one roller of the roller conveyor or moving the slider of the sliding guide system.

[0047] The driven flat filter component allows the solids to be removed preferentially from the drainage area of ​​the basin, and this is usually completely automated.

[0048] It can be provided that the discharge device has a housing assembly with a liquid inlet and a liquid outlet.

[0049] Preferably, the flat filter component is arranged within the housing assembly between the liquid inlet and the liquid outlet. It can be provided that the liquid inlet and the liquid outlet are arranged orthogonally or at least substantially orthogonally to each other (with respect to the flow direction assumed by the liquid when flowing through the liquid inlet or liquid outlet).

[0050] The housing assembly is preferably designed to prevent, or at least substantially prevent, any unintentional leakage of the liquid, except through the liquid outlet. The housing assembly can ensure that the liquid is guided in a defined manner by the discharge device, starting from the liquid inlet, via the filter component, into the liquid outlet.

[0051] The housing assembly can be designed in one piece or in multiple pieces.

[0052] It can be provided that the housing assembly has one or more access openings, preferably a closable access opening, in order to allow the user of the discharge device easy maintenance or cleaning.

[0053] The housing assembly may include one or more fastening means for securing the discharge device in, below, or at least in the region of a basin. Preferably, the housing assembly is formed at least substantially, preferably entirely, from a plastic. However, the housing assembly may also be formed from a metal, for example, stainless steel. A combination of different materials may also be provided.

[0054] The housing assembly can be constructed in multiple parts. It can, in particular, comprise an outer housing assembly and an inner housing assembly. The design of the outer housing assembly corresponds, in particular, to the design of the housing assembly according to the previous description.

[0055] The inner housing assembly is also referred to as the inner housing.

[0056] The inner housing can serve to reduce, in particular to avoid, preferably to prevent, contamination of the outer housing assembly, in particular by substances to be filtered out.

[0057] The inner housing can, in particular, be adapted to the outer housing assembly. It can, in particular, have an outer surface that is adapted to the outer housing assembly, in particular an inner surface thereof, such that, when the inner housing is inserted into the outer housing assembly, there is at least partial surface contact and / or a positive connection between these surfaces.

[0058] The inner housing can be removed from the outer housing assembly, for example, for cleaning purposes, particularly reversibly and without the need for tools. This facilitates cleaning. This can also enable disinfection and / or sterilization of the inner housing.

[0059] Tool-free removal is understood in particular to mean that no tools, in particular no screwdriver or wrench, are required to remove the inner housing from the outer housing assembly. This applies accordingly to the removal of the filter component. In principle, it is also possible to restrict the removal of individual components, for example, the inner housing and / or the filter component, so that it is only possible with the help of special tools, such as a special key and / or a code. This can prevent unwanted removal.

[0060] By an asymmetrical design of a cross-section of the inner housing and / or by means of symmetry-breaking means, it can be ensured that the inner housing can only be inserted into the outer housing assembly with a specific orientation.

[0061] The inner housing can be fixed, in particular, in a defined end position in the outer housing assembly. One or more fixing means can be provided to fix the inner housing in the outer housing assembly. These can be mechanical fixing means, for example, locking elements or screws, and / or magnetic fixing means, in particular magnets.

[0062] The removal of the inner housing from the outer housing assembly can be facilitated by a removal device. The removal device can be purely mechanical. It can, for example, comprise one or more spring elements, such as coil springs and / or compression springs. It can also comprise gripping elements and / or loops. It can also comprise electrical components, such as a motor.

[0063] The inner housing can have a fluid inlet and a fluid outlet. These correspond in particular to the previously described fluid inlet and fluid outlet of the outer housing assembly. In particular, they are each fluidically connected to these.

[0064] When inserted into the outer housing assembly, the inner housing can be sealed on the outlet side with the outlet of the outer housing assembly. A sealing element, such as a sealing ring and / or a sealing lip, can be provided for sealing. When inserted into the outer housing assembly, the inner housing can be sealed on the inlet side with the inlet of the outer housing assembly. A sealing element, such as a sealing ring and / or a sealing lip, can be provided for sealing.

[0065] The outer housing assembly can remain functional even when the inner housing is removed, in particular, enabling fluid drainage, in particular forming a fluid-tight connection from the fluid inlet to the fluid outlet. This can ensure that fluid drainage is possible, and in particular guaranteed, even without the filter component, for example, during cleaning of the filter component. The housing assembly does not need to be completely sealed to the outside in a fluid-tight manner. However, a completely fluid-tight design of the housing assembly to the outside in a fluid-tight manner is also possible and can be advantageous.

[0066] The outer housing assembly can, in particular, have one or more openings that can be closed, in particular sealed in a liquid-tight manner, by one or more covers. The cover(s) can be removed without tools. One or more sealing elements can be provided for sealing. These can be arranged or formed on the housing assembly and / or on the cover(s).

[0067] The openings can allow for easy maintenance and / or cleaning. In particular, they can allow for easy removal of the inner housing.

[0068] The inner housing can, in particular, have one or more openings that can be closed, in particular sealed in a liquid-tight manner, by one or more covers. The cover(s) can be removed without tools. One or more sealing elements can be provided for sealing. These can be arranged or formed on the inner housing and / or on the cover(s).

[0069] The cover(s) for closing the openings of the outer housing assembly can simultaneously serve to close one or more openings of the inner housing. The inner housing can, in particular, be designed to be open on one side, wherein the opening is closed, in particular sealed in a liquid-tight manner, by the cover(s) of the outer housing when the inner housing is inserted into the outer housing assembly.

[0070] Alternatively, it is also possible to close the inner housing using one or more separate covers.

[0071] In one embodiment of the invention, it can be provided that the discharge device, in particular the housing assembly of the discharge device, has a connection interface for the liquid inlet and / or a connection interface for the liquid outlet.

[0072] The connection interface of the liquid inlet and / or liquid outlet can, in particular, be a connection and / or a recess for a liquid line. Thus, for example, the liquid inlet can be connected to a liquid outlet of the basin via the connection interface. Standardized connection interfaces are preferably provided to enable or at least facilitate the connection of the drainage device to an existing sanitary infrastructure. An existing basin can advantageously be retrofitted with the proposed drainage device.

[0073] It may be provided that the position, alignment and / or orientation of the connection interface of the liquid inlet and / or the connection interface of the liquid outlet are adjustable.

[0074] In this regard, the connection interface can, for example, comprise a flexible pipe, e.g., a hose. Telescopic connections, floating bearings in, for example, oblong holes, or a rotatable, eccentric arrangement of the connection interface and fluid inlet or outlet can also be provided.

[0075] It is also possible to provide the connection interface with a linear guide. It can be adjustable, in particular, in a direction perpendicular to the drainage direction, especially horizontally. It can, in particular, have one or two degrees of freedom of adjustment. It is particularly advantageous to make the distance, especially horizontal, between the connection interface and the mounting interface for the collection container adjustable. This allows, in particular, the discharge device to be flexibly adapted to the positioning of a waste bin in the base cabinet.

[0076] The drainage device can therefore be flexibly adapted and is therefore suitable for use with a variety of different basins.

[0077] It can be provided that the housing assembly has a collecting space for the liquid, which is formed in a region between the flat filter component and the liquid drain.

[0078] The collection chamber can serve as a collection space or buffer, especially if the liquid cannot drain through the drain quickly enough. This generally prevents liquid from escaping from the drainage system, even if the drain is partially blocked.

[0079] In particular, it may be provided to design the housing assembly such that a space is formed between the inner housing and the outer housing, by means of which drying of this area, particularly in the area of ​​the drain, can be facilitated, in particular ensured. This can impede, in particular reduce, biofilm formation.

[0080] The housing assembly may be provided with an ejector for the filtered solids.

[0081] The ejection can be provided in particular in the region of an end section of the roller conveyor or the sliding guide system, preferably at the end section of the roller conveyor or the sliding guide system located in the transport direction.

[0082] The ejector can, in particular, be an opening in the housing assembly, which is preferably arranged such that liquid cannot accidentally escape through the opening. For example, a certain spacing can be provided between the ejector and the liquid inlet and, if applicable, the liquid outlet, in particular due to a defined length of the roller conveyor or the sliding guide system. The roller conveyor or the sliding guide system, including the filter component, can therefore preferably transport the solids far enough away from the liquid inlet and outlet to be safely ejected from the ejector without unintentional liquid loss.

[0083] A collection container for the filtered solids can be provided in the discharge area. The collection container can be formed as a single piece or preferably in multiple parts with the housing assembly. The collection container can, in particular, be modular. It can, in particular, have a reversibly closable, preferably removable, base. It can also, in particular, serve as a connecting shaft to an external collection container, in particular a waste bin.

[0084] The collection container may in particular be a waste bin that is independent of the housing assembly, for example a conventional kitchen waste bin.

[0085] The filter component can be provided with an incline in the transport direction so that excess liquid can drain off in a direction opposite to the transport direction. The incline can be, for example, 60° or less, preferably 45° or less, particularly preferably 30° or less, for example also 20° or less or 10° or less. In principle, however, even greater inclines than 60° can be provided. Optionally, retaining ribs can be arranged on the surface of the flat filter component, particularly if the filter component has an incline in the transport direction, so that the solids can be transported captively despite the incline.

[0086] In particular, it can be provided that the housing assembly has a mounting interface for a collection container for the filtered solids in the discharge area, so that the filtered solids ejected via the discharge reach the collection container. A collection container (e.g., a waste container), preferably independent of the housing assembly or discharge device, can be securely connected to the housing assembly via the mounting interface. A modular discharge chute can preferably be provided.

[0087] The fastening interface may comprise a quick-release fastener, for example a mechanical quick-release fastener and / or a magnetic fastener.

[0088] The collection container can be reversibly connected to or separated from the housing assembly without the use of tools. It can be mechanically and / or magnetically connected to the housing assembly, in particular fixed to it. It can be pushed or screwed onto the housing assembly, or locked or clipped onto it, using the fastening interface.

[0089] The collection container or discharge chute can have a modular bottom closure. It can be used as a connecting element to a waste collector.

[0090] Preferably, the collection container can be removed from the discharge device, for example, for cleaning purposes. The collection container can, in particular, be designed to be dishwasher-safe. This facilitates easy cleaning of the collection container.

[0091] A dishwasher is understood in particular to mean a household kitchen dishwasher.

[0092] Cleaning the collection container can be further simplified by designing it in several parts.

[0093] The collection container can in particular be made of plastic or metal or have components made of plastic or metal.

[0094] The collection container may have an insert, for example, made of plastic, plastic, or paper. It may, for example, be provided with a plastic or paper waste bag, preferably made of a biodegradable material. This facilitates the removal and further handling of the materials collected in the collection container.

[0095] The collection container can be equipped with a device for adding additional substances. These substances can, in particular, be reagents for treating the materials collected in the collection container. This can improve their energy recovery, for example, their composting. Furthermore, odor development can be reduced, or even eliminated.

[0096] The collection container can also have a closure, for example in the form of a lid. The closure can be opened when the disposal system is in operation, for example, by folding the lid away. The closure can be closed, especially when the disposal system is not in use. This also helps prevent odor development.

[0097] It can optionally be provided that the discharge device, preferably the housing assembly of the discharge device, has a lighting device to illuminate the interior and / or exterior of the discharge device for maintenance purposes or for increased user comfort (e.g., when opening a sink base cabinet). The lighting device can have one or more light sources, preferably light-emitting diodes. The lighting is preferably provided as needed, and one or more sensors (e.g., a door contact, a motion sensor, or a pyroelectric sensor) can be provided to temporarily activate the lighting.

[0098] One or more magnetic means can be used to attach it to the main housing.

[0099] Spring contacts, in particular pogo pins, can be provided for fastening to the main housing and in particular for electrical contacting of the lighting device.

[0100] The flat filter component can be designed as a ring-shaped, fully circumferential filter belt or belt screen. The flat filter component can be, in particular, a belt, a mat, a textile, or a film. The flat filter component can preferably be at least partially elastic to enable suitable covering on the roller conveyor or the slider of the sliding guide system.

[0101] It can be provided that the flat filter component is made of a plastic or stainless steel mesh.

[0102] In principle, however, any material can be used to form the flat filter component, for example a textile fabric.

[0103] It can be provided that a mesh size of the flat filter component is 10 mm to 0.05 mm, preferably 5 mm to 0.1 mm.

[0104] In this context, "mesh size" refers to the size of the openings in the filter component through which the liquid can flow. The mesh size therefore defines the possible flow rate and the minimum size of the solids to be filtered. The above-mentioned value ranges have proven particularly advantageous for filtering organic solids from the liquid drain of a basin, especially a sink. In principle, however, other mesh sizes may also be advantageous for use with the invention, depending on the application.

[0105] The flat filter component may be provided with an antimicrobial coating. This antimicrobial coating could, for example, be a nanosilver coating.

[0106] In this way, biofilm formation can be prevented and sterility and odor neutrality can be ensured even if the drainage system or basin is not used for a long time.

[0107] It can be provided that the distance at least between the outer rollers of the roller conveyor is adjustable. This allows for a variable belt center distance. Due to the adjustable distance at least between the outer rollers of the roller conveyor, the discharge device can be modularly adapted to the application, for example, for covering filter components of different sizes. This also enables re-tensioning of the flat filter component and easy replacement of the filter component by releasing the tension.

[0108] It can be provided that the roller conveyor has a spring tensioner in order to keep the flat filter component under a defined mechanical tension.

[0109] Preferably, a spring tensioner with at least one tension roller can be provided to keep the flat filter component under a defined mechanical tension. However, a tension roller is not absolutely necessary.

[0110] Advantageously, it can be provided that the filter component can be removed from the discharge device, in particular from the housing assembly, in particular also from the inner housing, in particular without the use of tools. In particular, it can be provided that the flat filter component can be removed from the roller conveyor or the sliding guide system.

[0111] In this way, optional manual cleaning of the flat filter component (e.g., in a dishwasher), replacement, or maintenance can be easily facilitated. In particular, it can be provided that the flat filter component can be removed from the roller conveyor or the sliding guide system without causing damage, for example, by at least temporarily reducing the mechanical tension, which can be achieved in particular by adjusting the distance between at least the outer rollers of the roller conveyor.

[0112] The filter component can in particular be removed from the outer housing assembly together with the inner housing and / or without it.

[0113] The filter component can, in particular, be designed in a modular manner. It can, in particular, be inserted into or removed from the discharge device, in particular into the housing assembly, in particular into the inner housing, as a separate module. This facilitates the replacement and / or cleaning of the filter component.

[0114] The inner housing can form a housing or a housing section of the module. However, this is not mandatory.

[0115] The inner housing with the filter component can also form a filter cartridge or be referred to as a filter cartridge.

[0116] The filter component, the module with the filter component, or the filter cartridge can be designed to be dishwasher-safe. In particular, they can be designed so that they can be cleaned in a dishwasher. This applies to the materials used as well as the arrangement, design, and dimensions of the components that make up these components.

[0117] The discharge device may be provided with a cleaning device for cleaning the flat filter component. The cleaning device is preferably designed for on-demand or regular cleaning (manually and / or automatically). The cleaning process by the cleaning device can be performed automatically and / or manually, depending on the level of contamination.

[0118] The cleaning device can have at least one cleaning nozzle for the targeted supply of a cleaning liquid to the flat filter component.

[0119] The cleaning fluid can preferably be the same fluid from which the solids are filtered out, for example the process water from a pool (preferably the process water from a pool supply line, i.e. fresh water, is used for cleaning). The cleaning fluid can also be a cleaning agent or a mixture of a cleaning agent and the process water. Cleaning can be carried out as needed, for example after a certain period of operation, after contamination has been detected by sensors or, for example, at user request or at regular intervals. The cleaning of the flat filter component can preferably be scheduled outside of normal operation of the discharge system, i.e. in particular when no filtering and removal of solids is taking place.The orbital movement of the filter component can be omitted or can occur at a defined speed, for example at a reduced speed or in discrete steps.

[0120] It may optionally be provided to close any discharge port present in the housing assembly during cleaning of the filter component in order to prevent the cleaning fluid from escaping.

[0121] It can be provided that the discharge device has at least one radiation source for generating ionizing radiation, preferably a UV-C radiation source for generating UV-C radiation, in order to irradiate at least a portion of the flat filter component.

[0122] The ionizing radiation can further improve the sterility and odor neutrality of the discharge device according to the invention. The wavelength of the ultraviolet radiation can be, for example, 100 nm to 400 nm, preferably 200 nm to 300 nm, particularly preferably approximately or exactly 254 nm.

[0123] The radiation source may preferably be arranged within the housing assembly.

[0124] Several radiation sources can also be provided.

[0125] Preferably, the radiation sources, in particular UV-C radiation sources, are optically shielded, for example, arranged behind a cover for any openings in the housing assembly. In an advantageous embodiment of the invention, a flushing channel device can be provided for the basin, comprising a profile assembly with one or more interfaces (in particular a connection and / or a recess for a liquid supply line) for supplying a liquid (preferably water, in particular drinking or tap water, optionally with additives, and / or a cleaning liquid) into a distribution line of the profile assembly and a dispensing area for dispensing the liquid.

[0126] The profile assembly may include a flow channel extending from the distribution line to the discharge area along a channel path. The distribution line, the flow channel, and the discharge area may extend through the profile assembly along a longitudinal axis of the profile assembly.

[0127] The creation of the aforementioned flow channel between the distribution line and the dispensing area allows for a fluid dispensing system that is particularly suitable for cleaning or rinsing the pool. Unlike pools where water is dispensed directly from the distribution line via individual nozzles or holes, the flow channel allows for a more homogeneous, laminar flow, resulting in even wetting of the interior of the pool. It has been shown that even fluid distribution during rinsing contributes significantly to the germ-free and overall cleanliness of the pool.

[0128] It can be provided that the discharge device has a control device which is designed to control and / or monitor a drive of the at least one roller of the roller conveyor or a drive of the slider of the sliding guide system, preferably as a function of a user input and / or a detected flow of the liquid.

[0129] The control device can also be provided to control further process-related steps of the discharge device, for example, to control the cleaning function of the cleaning device or to control the irradiation by the radiation source. It can also be provided that the control device controls and / or monitors the discharge of the liquid from the discharge area of ​​the flushing channel device, preferably depending on a user input.

[0130] The control device can in particular also be configured to plan and manage cleaning cycles, preferably according to automated schedules relating to the start, end, duration and / or intensity of a cleaning cycle. Monitoring of fill levels of a cleaning fluid can also be provided. For example, it can be provided that the cleaning of the flat filter component and the basin by means of the flushing channel device are coordinated. For example, the process water or the (already clean) wastewater from the flushing channel device can be used simultaneously to clean the flat filter component. It can be provided, for example, that the flat filter component is used to remove solids after regular use of the basin, after which the filter component is subsequently cleaned, preferably with the fluid still flowing from the flushing channel device.

[0131] The control device can be connected to electronic components of the discharge device, such as pumps, motors or sensors, via communication (wired and / or wireless).

[0132] The control device can have a user interface to enable the user of the drainage device or basin to provide user input and / or read status and measured values ​​(e.g., an indication of the need to clean the flat filter component or a request to empty the collection container). The user interface can have a display device, for example, a screen, one or more signal sources (e.g., an LED), and / or an input device, for example, one or more buttons. Preferably, a wireless user interface is provided, whereby any radio standard can be used, in particular a Bluetooth standard (e.g., BLE), a WL AN standard, a ZigBee standard, a GSM standard, or another radio standard, but in particular within the ISM band. The user interface can comprise a web application and / or an application on a mobile device ("app").The control device can have a data interface via which the control device is connected to a database and, if applicable, an external computing unit. In particular, the data interface can provide an internet connection, allowing the control device to be connected, for example, to a cloud system.

[0133] The flat filter component or at least one roller of the roller conveyor / slider of the sliding guide system can be driven mechanically or electrically, for example, by an electric motor. The drive can also be generated by the process water itself, for example, by a turbine driven by the liquid flowing into or out of the discharge device.

[0134] Optionally, belt slip monitoring can be provided, for example by monitoring the operating current of an electric motor driving at least one roller of the roller conveyor by means of a current sensor or other sensor.

[0135] It can be provided that the discharge device has a waste shredder or chopper arranged upstream of the flat filter component or downstream in the transport direction in order to at least partially shred the solids to be filtered out or already filtered out.

[0136] In one embodiment, the discharge device may be provided with a generator arrangement for partially converting the kinetic energy of the supplied liquid into electrical energy, preferably for the autonomous electrical supply of electronic components of the discharge device. In this way, the discharge device can be controlled even without access to an electrical connection.

[0137] The generator arrangement may in particular comprise a water turbine and a generator connected to the water turbine.

[0138] Optionally, an electrical energy storage device, such as a battery pack, can be provided to store the electrical energy generated by the generator assembly. An electrical energy storage device, in particular a replaceable or rechargeable energy storage device, can also be provided as a complete alternative to a generator assembly. In this way, the discharge device can be operated autonomously, at least temporarily.

[0139] The generator assembly can preferably be arranged directly upstream of the liquid inlet, downstream of the liquid inlet, in the housing assembly, upstream of the liquid outlet, or downstream of the liquid outlet of the discharge device. It can also be arranged in a supply line to the discharge device. In principle, the generator assembly can be connected to any liquid supply line of the pool—if necessary, even to the liquid supply line to a conventional fitting of the pool (e.g., to a building-side angle valve). The generator assembly can, in particular, have a 3 / 8-inch coupling for connection to the liquid supply line.

[0140] The invention also relates to a basin, in particular a sink or a wash basin, comprising a drainage device according to the above and following embodiments in order to drain solids from a liquid flowing out of the basin by means of the drainage device.

[0141] According to the invention, hygiene during basin operation can be significantly improved, for example, in hospitals, retirement homes, doctor's offices, laboratories, private households, and also in large parts of the food industry. The potential for infection and contamination, as well as unpleasant odors in the drain area of, for example, sinks or washbasins, can be significantly reduced.

[0142] Advantageously, the discharge device can be provided for filtering and removing solids, such as contaminants (hair or other biological material, but also inorganic material) from the liquid.

[0143] The drainage device can be glued, screwed, or otherwise detachably or permanently connected to the tank's fluid drain. A one-piece design between the drainage device and the tank can also be provided. The activation of the drainage device, i.e., the drive of the flat filter component in the transport direction, can be mechanically and / or electronically.

[0144] In particular, the control device described above can be provided to control the discharge device, for example to control valves, pumps, motors, electromechanical nozzles and / or to evaluate sensors and actuating switches.

[0145] The control device can be embodied as a microprocessor. Instead of a microprocessor, any other device can also be provided for implementing the control device, for example, one or more arrangements of discrete electrical components on a circuit board, a programmable logic controller (PLC), an application-specific integrated circuit (ASIC), or another programmable circuit, for example, a field-programmable gate array (FPGA), a programmable logic array (PLA), and / or a commercially available computer.

[0146] The basin can be made of a metal, in particular a metal sheet, a ceramic, and / or a plastic. Preferably, the basin can also be made of a composite material, for example, a quartz composite material. A combination of different materials is also possible, of course. In principle, the basin can be made of any material.

[0147] In principle, the basin can have any optional components, in particular a liquid drain for the liquid (drain, downpipe and / or siphon), an overflow for the liquid, storage areas, etc.

[0148] In particular, it may be provided that the pool has a fitting which is fed via a main supply line (in particular with drinking or tap water).

[0149] Actuation of the fitting and / or the drainage device by means of a proximity or motion sensor can also be provided. The drainage device can be arranged near the floor, i.e., in the lower area within the basin, or (preferably) in a fluid outlet of the basin. An arrangement in the fluid outlet of the basin is understood, in particular, to mean that the flow path of the fluid in the drainage device lies in the flow path of the fluid draining through the basin's fluid outlet.

[0150] This allows solids generated during pool use to be filtered out before they enter the sewer pipe system, preventing clogging. Furthermore, germ formation and unpleasant odors in the sewer pipes can be prevented.

[0151] Optionally, odor extraction can be provided within the extraction system, for example, within the housing assembly of the extraction system. An activated carbon filter or plasma filter can be used for this purpose.

[0152] Optionally, an overflow detection device can be provided within the discharge device, for example within the housing assembly, to warn of an overflow of the liquid or to interrupt the liquid supply to the basin if necessary.

[0153] The invention also relates to a method for filtering and removing solids from a draining liquid of a basin, in particular a sink or wash basin, comprising at least the following method steps: a) directing the liquid onto a flat filter component through which the liquid can flow away, so that the solids remain on the surface of the filter component; b) driving the flat filter component in rotation around at least two rollers of a roller conveyor or in rotation around a sliding guide system in order to remove the filtered solids.

[0154] Features described in connection with one of the objects of the invention, specifically the drainage device according to the invention, the basin according to the invention, or the method according to the invention, can also be advantageously implemented for the other objects of the invention. Likewise, advantages mentioned in connection with one of the objects of the invention can also be understood to apply to the other objects of the invention.

[0155] It should also be noted that terms such as "comprising," "having," or "with" do not exclude other features or steps. Furthermore, terms such as "a" or "the," which indicate a singular number of steps or features, do not exclude a plurality of features or steps—and vice versa.

[0156] In a purist embodiment of the invention, however, it may also be provided that the features introduced in the invention with the terms "comprising," "having," or "with" are listed exhaustively. Accordingly, one or more lists of features may be considered complete within the scope of the invention, for example, for each claim. The invention may, for example, consist exclusively of the features mentioned in claim 1.

[0157] It should be noted that terms such as "first" or "second" etc. are used primarily for reasons of distinguishability of respective device or process features and are not necessarily intended to indicate that features are mutually dependent or related to one another.

[0158] Furthermore, it should be emphasized that the values ​​and parameters described herein include deviations or fluctuations of ±10% or less, preferably ±5% or less, more preferably ±1% or less, and most preferably ±0.1% or less of the respectively stated value or parameter, provided that these deviations are not excluded when implementing the invention in practice. The specification of ranges by initial and final values ​​also includes all those values ​​and fractions that are enclosed by the respectively stated range, in particular the initial and final values ​​and a respective mean value. Further advantageous aspects are briefly described below. These can lead to advantages on their own or in combination with one or more of the previously described aspects and can form the subject of protection claims.

[0159] According to one aspect, pre-filtration may be performed in the area of ​​the liquid inlet of the housing assembly and / or upstream of it. One or more filter elements may be provided for this purpose. These may be arranged in the area of ​​the liquid inlet of the housing assembly and / or upstream of it. These filter elements are also referred to as pre-filters.

[0160] The pre-filter(s) are used primarily to filter out coarse solids. They can have a mesh size or pore diameter of at least 1 mm, especially at least 1 cm.

[0161] The mesh size of the pre-filter(s) is in particular at least as large, in particular at least twice as large, in particular at least five times as large, in particular at least ten times as large as the mesh size of the filter component of the discharge device.

[0162] The pre-filters can prevent unwanted penetration of certain substances into the discharge system.

[0163] The pre-filter(s) can be removed as needed and / or for cleaning purposes.

[0164] According to one aspect, it can be provided to arrange a lighting device on the discharge device and / or on the basin and / or in the area beneath the basin. With the help of the lighting device, a base cabinet can in particular be illuminated. With the help of the lighting device, a waste container and / or a collection shaft leading to it can in particular be illuminated, in particular illuminated. The waste container and / or the collection shaft can in particular have one or more translucent, i.e. transparent, in particular translucent, areas, in particular windows. With the help of the translucency, the fill level of the waste container and / or the collection shaft can be detected easily and reliably. The fill level can also be detected by means of a sensor device, in particular with one or more light-sensitive sensors.When a certain fill level is reached, a signal can be sent to the user that the waste container should be emptied. This can prevent overfilling of the waste container and / or the collection chute.

[0165] The aspect of the lighting device and its details are in particular independent of the details and other aspects of the discharge device.

[0166] The lighting device can have one or more light sources, particularly in the form of LEDs. This allows for flexible illumination. LEDs are advantageous for energy-efficient lighting.

[0167] The lighting device can have one or more diffusers and / or reflectors. This can improve the illumination of the space to be illuminated, especially in the base cabinet.

[0168] The lighting device can have a sensor device with one or more sensor elements. This enables sensor-controlled activation of the lighting device.

[0169] The sensor elements may in particular comprise one or more infrared sensors, contact switches, optical distance sensors or laser sensors.

[0170] The lighting device can also be activated and / or deactivated by means of a switch, in particular a manually operated switch and / or a contact switch. The lighting device can have a glare shield. This can prevent the lighting device from shining directly into the user's eyes.

[0171] The light sources can be arranged in particular on the underside of the housing assembly and / or behind the collecting container.

[0172] The lighting device may have a mains connection. It may also have its own power source, particularly in the form of a battery or a rechargeable battery. It may also have a power generator or be electrically connected to the generator arrangement of the discharge device. This allows the rechargeable battery to be charged.

[0173] The power generator can be integrated into a pipe or hose element. This allows for easy connection to existing systems. For example, existing sinks or other fixtures with a water drain can be easily retrofitted with a suitable power generator.

[0174] According to a further aspect, the housing assembly can have a splash guard. This can reduce, in particular avoid, or preferably prevent, the unwanted penetration of liquid into the collection container. The splash guard can be designed in particular in the form of a baffle element, for example, a baffle plate. It can also additionally or alternatively have a shielding element, for example, in the form of a shielding plate or a curtain.

[0175] The splash guard can be arranged in particular in the area between the liquid inlet and the filter component and / or in the area between the liquid inlet and the discharge.

[0176] The control device for controlling the discharge device can be arranged in a closed volume area of ​​the housing assembly. It can also be arranged in a separate housing. The volume area in which the control device is arranged can, in particular, be encapsulated, in particular, liquid-tight. This increases operational reliability.

[0177] According to a further aspect, the drive of the filter component and the filter component can be connected by means of a slip clutch. A slip clutch is an automatically torque-switching safety clutch. The slip clutch can, in particular, allow slippage. It can, in particular, interrupt the torque transmission from the drive to the filter component if the incoming torque becomes excessive.

[0178] This protects the discharge device, especially the drive and / or filter components. At the same time, efficient torque transmission can be ensured.

[0179] The slip clutch can in particular be formed by a frictional clutch or comprise a frictional clutch.

[0180] Torque transmission can be achieved, in particular, via a combination of a positive-locking clutch and a frictional clutch. This allows slippage in the event of an overload. The frictional clutch can, in particular, be connected downstream of the positive-locking clutch.

[0181] According to a further aspect, at least one roller of the roller conveyor can be designed as a hedgehog roller. A hedgehog roller is understood to be a roller whose outer surface is provided with a plurality of nubs extending perpendicular to the outer surface. The nubs can be evenly distributed over the entire outer surface. The nubs can, in particular, engage with the mesh of the filter element.

[0182] By using such a hedgehog roller, unwanted movements, in particular unwanted slipping and / or twisting of the filter element, can be prevented. By using the hedgehog roller, the filter element can be made particularly stable and / or the drive of the filter element can be improved. They can also be distributed unevenly across the casing surface. They can be distributed in stripes, bands, tapered, or parallel to a longitudinal axis of the roller across the casing surface.

[0183] According to a further aspect, the discharge device can have a scraper. The scraper can be arranged in particular in the region of the filter element.

[0184] The wiper can preferably be designed to be flexible or have one or more flexible regions. It can, in particular, be designed to be reversibly deformable, in particular bendable. It can also have one or more defined bending axes. In this case, in particular, the regions adjacent to the bending axes can also be designed to be rigid, in particular rigid across their entire surface.

[0185] The scraper allows solids filtered out of the wastewater to be transferred to the collection tank. Especially when solids are trapped in the filter, for example, due to jamming in the mesh of the filter element, preventing these solids from being transferred to the collection tank simply by moving the filter element, the use of a scraper can increase the efficiency of the discharge system. The filter elements need to be removed for cleaning less frequently, which can further increase the user-friendliness of the discharge system.

[0186] It is possible that the scraper is designed as a movable component and is moved over the filter element similar to a rake, transferring solids from the filter element to the collection container.

[0187] It is also possible that the wiper is designed as a stationary component and the contact between the wiper and the filter element is established by the movement of the filter element.

[0188] According to a further aspect, the discharge device can comprise a device for comminuting solids. The device can be arranged, in particular, near the collection container. The device can be arranged, in particular, upstream of the collection container. The comminution device can be designed, in particular, as a grinder or comprise a grinder.

[0189] By shredding the discharged solids, the volume of the collection container can be better utilized. The collection container needs to be emptied less frequently, further increasing the user-friendliness of the discharge system.

[0190] According to a further aspect, the inner housing can have a barrier downstream of the filter element, particularly in the form of a backflow chamber. The barrier can be designed to temporarily store any accumulating water. This prevents the accumulating water from overflowing into the discharge outlet of the discharge device.

[0191] In particular, the inner housing can have an outlet geometry that breaks up the water jet. This can achieve or support a faster drainage of the water from the inner housing.

[0192] According to a further aspect, the discharge device can have a pyroelectric sensor. The pyroelectric sensor can be arranged, in particular, in the inner housing. The pyroelectric sensor can be arranged, in particular, in the region of the filter element.

[0193] The pyroelectric sensor can, in particular, be signal-connected to the control device. It is particularly possible for the control device to activate and / or deactivate the discharge device, in particular the drive of the filter element, based on the signal from the pyroelectric sensor. In particular, the drive can be activated as soon as the pyroelectric sensor detects a temperature change, in particular of a component of the housing assembly, in particular of a component of the inner housing or the outer housing.

[0194] The drive can be activated as soon as the pyroelectric sensor detects a minimum temperature change of no more than 10 K, in particular no more than 3 K, in particular no more than 1 K, in particular no more than 0.3 K, in particular no more than 0.1 K. The pyroelectric sensor can also activate lighting, in particular x-ray illumination, of the waste container.

[0195] According to a further aspect, the filter element can comprise a textile band. It is particularly possible for the textile band to be made at least partially or entirely of plastic. A design of the textile band as a fabric band is also possible. It is particularly possible for the mesh size of the textile band to be variably adjustable.

[0196] According to a further aspect, the discharge device can have a means for limiting the flow, in particular the inlet, in particular in the form of a ball valve. The means, in particular the ball valve, can be arranged in particular in the region of the liquid inlet of the outer housing or the inner housing. With such a ball valve, the inflow rate, in particular the flow rate, can be limited and in particular adjusted.

[0197] The means for limiting the inflow, in particular the ball valve, can be arranged in particular in the space between a sink and the discharge device, in particular its outer housing.

[0198] Optionally, a drain restriction, particularly in the form of a ball valve, can also be provided in the drain.

[0199] The inflow limiting device can ensure that at any given time, only as much water enters the drainage system as can flow out of it. The inflow limiting device can, in particular, take over the function of a drain valve, especially a sink drain valve, or in particular, replace such a valve.

[0200] According to a further aspect of the invention, the exhaust device can comprise an exhaust air system. The exhaust air system can be used to remove air located in the exhaust device, in particular heated air. It is also possible to remove odors with the exhaust air system. The exhaust air system can comprise means for extracting the air in the exhaust device. These means can be designed, in particular, as fans. The exhaust air system can comprise, in particular, at least one fan, in particular at least two fans, in particular at least three fans, and in particular at least four fans.

[0201] By directly connecting the wastewater separation system to a waste disposal system, the air can also be removed from the system via the discharge chute.

[0202] The at least one fan can be designed in particular as an axial fan, radial fan or tangential fan.

[0203] In the case of a radial fan, it is particularly possible to arrange the axis of the radial fan obliquely with respect to the plane defined by the filter element.

[0204] The exhaust air system can in particular be designed in a modular manner.

[0205] In particular, it can optionally be added to the discharge device, in particular connected to it, or separated from it.

[0206] The exhaust air system can in particular have a fan that can be removed without tools.

[0207] The exhaust air system can in particular have an activated carbon filter that can be replaced without tools.

[0208] The fan can be connected to the housing, in particular the outer housing of the exhaust device. It can be connected to the housing, in particular the outer housing of the exhaust device, in particular by means of one or more magnets, in particular permanent magnets.

[0209] The fan can be electrically connected via spring contacts, in particular pogo pins. According to a further aspect, the discharge device can have a magnetic closure with at least one magnet. It is also possible for the discharge device, in particular the magnetic closure, to have at least two, in particular at least five, in particular at least 10, and in particular at least 15 magnets. Covers, in particular, can be held in place with the at least one magnetic closure.

[0210] It is also possible that the inner housing and the outer housing group are fastened together by means of a magnetic closure.

[0211] This allows individual components of the discharge device to be securely attached to one another and, on the other hand, to be quickly separated from one another, for example for maintenance purposes.

[0212] By using spring contacts, especially pogo pins, the magnetically fixed covers and housing parts can also be made electrically connectable.

[0213] In the following, embodiments of the invention are described in more detail with reference to the drawings.

[0214] The figures each show preferred embodiments in which individual features of the present invention are illustrated in combination with one another. Features of one embodiment can also be implemented independently of the other features of the same embodiment and can therefore be readily combined by a person skilled in the art to form further useful combinations and subcombinations with features of other embodiments.

[0215] In the figures, functionally identical elements are provided with the same reference numerals.

[0216] They show schematically: Figure 1 a discharge device for filtering and removing solids from the liquid in the liquid outlet of a basin according to a first embodiment;

[0217] Figure 2 shows a discharge device for filtering and removing solids from the liquid according to a second embodiment in a closed state of the housing assembly;

[0218] Figure 3 shows the discharge device of Figure 2 with the cover of the housing assembly open;

[0219] Figure 4 shows the discharge device of Figure 2 in a side view with the lid open and optional further developments shown in dashed lines; and

[0220] Figure 5 shows an embodiment of a sliding guide system for moving the filter component as an alternative to a roller conveyor,

[0221] Figure 6 and Figure 7 are partial exploded views of a variant of the discharge device according to Figures 2 to 4,

[0222] Figure 8 and Figure 9 show partial representations of a variant of a discharge device for filtering and removing solids from a liquid and

[0223] Figure 10 and Figure 11 show partial representations of a further variant of a discharge device for filtering and removing solids from a liquid.

[0224] Figure 1 shows a first exemplary embodiment of the present invention in a highly schematic manner. Figure 1 shows a lower section of a basin 1, for example a sink or washbasin, in which a drainage device 2 for filtering and draining solids 3 is provided in order to drain the solids 3, for example organic or inorganic waste, from the liquid 4 flowing out of the basin 1 (indicated in Figure 4 as a dashed arrow). The drainage device 2 is arranged in the liquid outlet 5 of the basin 1 and is therefore capable of filtering out the solids 3 that accrue during use of the basin 1 before they enter the sewage pipe system, which can prevent clogging of the sewage pipes, germ formation, and unpleasant odors from developing in the sewage pipes.

[0225] The discharge device 2 has a flat filter component 6 through which the liquid 4 can flow away, whereas the solids 3 remain on the surface 7 of the filter component 6. In the exemplary embodiments, the flat filter component 6 is designed as a ring-shaped, completely circumferential filter belt. The flat filter component 6 can preferably be made of a plastic or a stainless steel mesh and have a mesh size of 10 mm to 0.05 mm, preferably 5 mm to 0.1 mm. Optionally, the flat filter component 6 can be coated with an antimicrobial coating, preferably with a nanosilver coating, to suppress germ formation.

[0226] The surface 7 of the filter component 6 can be cleaned of the solids 3 as needed or regularly (manually and / or automatically), for example by placing the solids 3 into a collecting container or receptacle 8 (e.g. a waste bin). For this purpose, the flat filter component 6 is clamped circumferentially on a roller conveyor 10 having at least two rollers 9 and can be moved circumferentially by driving at least one of the rollers 9. In this way, the filtered solids 3 can be transported along a transport direction T into the collecting container or receptacle 8. An electric motor can preferably be provided to drive the at least one roller 9, although this is not shown in the figures.

[0227] A control device 11 can be provided (shown in dashed lines in Figure 1), for example, to control the drive of at least one roller 9 of the roller conveyor 10. The control device 11 can be used in particular to carry out the method for filtering and removing the solids 3 from the liquid 4 flowing from the basin 1. The control device 11 can optionally be connected to one or more sensors (not shown). Preferably, the control device 11 can drive the roller 9 of the roller conveyor 10 depending on a user input and / or a detected flow rate of the liquid 4.

[0228] The discharge device 2 can be a fixed component of the basin 1 or combined modularly as an independent component with a basin 1. Preferably, the discharge device 2 can be retrofitted in the liquid drain 5 of the basin 1.

[0229] A somewhat more concrete embodiment of the discharge device 2 is shown in Figures 2 to 4.

[0230] The discharge device 2 preferably has a housing assembly 12 with a liquid inlet 13 and a liquid outlet 14. The flat filter component 6 is arranged within the housing assembly 12 between the liquid inlet 13 and the liquid outlet 14 (see in particular Figure 4). The housing assembly 12 is preferably designed to ensure that the liquid 4 is completely guided from the liquid inlet 13 to the liquid outlet 14, so that the liquid does not inadvertently escape from the discharge device 2. For this purpose, the housing assembly 12 can, for example, be completely closed all the way around. However, for maintenance and / or cleaning purposes, an access opening 15 can be provided (see Figure 3), which can be closed by one or more covers 16 (see Figure 2).

[0231] Optionally, the position, alignment, and / or orientation of a connection interface 17 of the liquid inlet 13 and / or a connection interface of the liquid outlet 14 can be adjustable, so that the discharge device 2 can be modularly designed for use with various drainage systems of any basin 1. Figure 4 shows an example of a connection interface 17 for the liquid inlet 13. Due to the rotatable, eccentric design, easy adaptability to the existing piping system of the basin 1 is possible.

[0232] The housing assembly 12 can have a collecting chamber 18 for the liquid 4 (see in particular Figures 3 and 4), which is formed in a region between the flat filter component 6 and the liquid drain 14. This can be advantageous for providing a collection area for the liquid 4 if the liquid 4 cannot drain sufficiently quickly through the liquid drain 14. This can prevent the liquid 4 from escaping even if the amount of liquid draining is reduced (for example, due to a blockage).

[0233] Finally, the housing assembly 12 can have an ejector 19 for the filtered solids 3, which is preferably arranged in the region of the end section of the roller conveyor 10 arranged in the transport direction T. In the embodiment of Figures 2 to 4, a fastening interface 20 is provided on the housing assembly 12 in the region of the ejector 19 in order to fasten the collection container 8, for example a waste bin, to the housing assembly 12, so that the filtered solids 3 ejected via the ejector 19 reach the collection container 8 safely.

[0234] Optionally, it can be provided that the distance D between the outer rollers 9 of the roller conveyor 10 is adjustable (see Figure 4). This allows the discharge device 2 to be adapted for use with different filter components 6 or different sizes of filter components 6. Furthermore, by adjusting the distance D between the rollers 9 of the roller conveyor 10, the flat filter component 6 can be removed more easily from the roller conveyor 10 if necessary. In order to keep the flat filter component 6 under a defined mechanical tension to prevent slipping during operation, a spring tensioner 21 can preferably be provided, for example a spring tensioner 21 with a tension roller 22 (indicated by dashed lines in Figure 4).However, a spring tensioner 21 can also be omitted, for example if the flat filter component 6 has sufficient elasticity and the distance D between the outer rollers 9 of the roller conveyor 10 is adjusted accordingly, so that the flat filter component 6 is under a corresponding elastic tensile stress.

[0235] Below, several further optional developments of the discharge device 2 are proposed, each of which is indicated by dashed lines in Figure 4. For example, a cleaning device 23 can be provided for cleaning the flat filter component 6 as needed, preferably comprising at least one cleaning nozzle 24 for the targeted supply of a cleaning fluid (usually the same type of fluid 4 that is being filtered, in particular fresh service water). Cleaning can be initiated, for example, by the user or automatically, for example, by the control device 11 already mentioned above.

[0236] Furthermore, it can be provided that the discharge device 2 has at least one radiation source 25 for generating ionizing radiation, preferably a UV-C radiation source for generating UV-C radiation, in order to irradiate at least a portion of the flat filter component 6. In this way, the liquid 4 as well as the discharge device 2 or the flat filter component 6 can be disinfected before and / or after the liquid 4 flows through. The ionizing radiation can be optically shielded, for example, by protective plates (not shown in detail), or arranged in the housing assembly 12 in such a way that it is not visible.

[0237] Optionally, a waste shredder 26 can also be provided upstream of the flat filter component 6 (see Figure 4) or downstream in the transport direction T in order to at least partially shred the solids 3 to be filtered or already filtered.

[0238] It can be provided that the filter component 6 has a gradient in the transport direction T, so that excess liquid 4 can drain in a direction opposite to the transport direction T (not shown in the figures). Optionally, retaining ribs 27 can be arranged on the surface 7 of the flat filter component 6 (some retaining ribs 27 are shown by way of example in dashed lines in Figure 4), in particular if the filter component 6 has said gradient in the transport direction T, so that the solids 3 can be transported captively despite the gradient.

[0239] Figure 5 shows a further embodiment of a discharge device in which a sliding guide system 28 is used as an alternative to a roller conveyor 10. A sliding guide system, for example the sliding guide system 28 described below, is fundamentally compatible with all variants of the invention described above. The discharge device 2 shown in Figure 5 again has a flat filter component 6 through which the liquid 4 can flow away, whereas the solids 3 remain on the surface 7 of the filter component 6. The flat filter component 6 is designed as a ring-shaped, completely circumferential filter belt and is clamped onto a movable slider 29. The sliding guide system 28 has a slide or guide rail 30 along which the slider 29 is movable.In the exemplary embodiment, the slider 29 runs completely around the guide rail 30 and comprises a ball bearing which is arranged circumferentially in the guide rail 30.

[0240] A further embodiment of the discharge device 2 is described below with reference to Figures 6 and 7. Functionally equivalent components are given the same reference numerals as in the embodiment according to Figures 2 to 4, to whose description reference is hereby made.

[0241] In the embodiment shown in Figures 6 and 7, the housing assembly 12 is constructed in several parts. It comprises, on the one hand, an outer housing assembly 12, which essentially corresponds to the housing assembly 12 of the previously described embodiments.

[0242] It also includes an inner housing assembly, which is also referred to below as inner housing 31.

[0243] The inner housing 31 can be removed from the outer housing assembly 12 for cleaning purposes.

[0244] The inner housing 31 has in particular an outer contour which is adapted to an inner contour of the outer housing assembly 12.

[0245] As can be clearly seen from Figures 6 and 7, the filter component 6 can be removed from the housing assembly 12 separately from the inner housing 31. The filter component 6 can also be removed from the inner housing 31. For this purpose, the cover 16 is constructed in several parts. It comprises a first partial cover 16a and a second partial cover 16b. A removal opening 32 in the first partial cover 16a can be closed by means of the second partial cover 16b.

[0246] The filter component 6 can be attached to the partial cover 16b.

[0247] A handle element 36 can be arranged on the cover 16b. The handle element 36 facilitates the removal of the filter component 6 from the inner housing 31.

[0248] The filter component 6 can be separated from the cover 16b reversibly, preferably without tools. The cover 16b can be used, particularly after removing the filter component 6, even without the latter to close the removal opening 32, in particular to seal it liquid-tight.

[0249] By means of the cover 16, both the inner housing 31 and the outer housing assembly 12 can be closed in a liquid-tight manner.

[0250] The collecting container 8 is constructed in several parts. It comprises, in particular, a container wall 33 and a container base 34. The container base 34 can be removably connected to the container wall 33.

[0251] The collection container 8 also includes at least a portion of the fastening interface 20. This portion of the fastening interface 20 can be designed as an adapter ring 46, as shown by way of example in Figure 6 and in particular Figure 7. The adapter ring 46 can be plugged onto the container wall 33, in particular, locked thereto.

[0252] The discharge device 2 can also have a lighting device 35. The lighting device 35 is shown only schematically in the figures. It can be arranged, in particular, on a base of the outer housing assembly 12. It is preferably arranged such that it does not dazzle the user. The lighting device 35 can also be provided, in particular, in the area of ​​the liquid outlet 5 of the basin 1. It can be advantageous independently of the details of the discharge device 2.

[0253] The housing assembly 12 has a receiving space 37. The receiving space 37 is, in particular, sealed to the outside in a liquid-tight manner or can be closed to the outside in a liquid-tight manner. The receiving space 37 can, in particular, be encapsulated.

[0254] The receiving space 37 serves to accommodate sensitive, particularly liquid-sensitive, components. The receiving space 37 can serve, in particular, to accommodate electrical and / or electronic components. It can serve, in particular, to accommodate the control device 11.

[0255] For connection to further components, liquid-tight passages can be provided in one or more boundary walls of the receiving space 37.

[0256] A variant of the discharge device 2 is described below with reference to Figures 8 and 9. Functionally similar parts are given the same reference numerals as in the previously described embodiments, to whose description reference is hereby made.

[0257] In the variant shown in Figures 8 and 9, the filter component 6 comprises a folding filter unit. The filter component 6 is mounted, in particular, so as to be pivotable about a pivot axis 38. The pivoting of the filter component 6 can be motor-driven. It can occur with or without spring assistance.

[0258] The filter component 6 is pivotable, in particular, between two defined end positions. The end positions can each be formed by stop elements, in particular in the form of stop bars 39, 40. The stop bar 39 is arranged in the area of ​​the discharge 19. It allows the filter component 6 to be knocked out. This can improve the transfer of waste materials into the collection container 8.

[0259] The stop bar 40 can serve as a support for the filter component 6 in the operating position.

[0260] According to an advantageous variant, the stop bar 40 can be designed to be movable. In particular, it can be moved, for example, folded away or retracted, in such a way that the filter component 6 can be pivoted downward beyond the operating position. This can be advantageous for cleaning the filter component 6.

[0261] The discharge device 2 according to Figures 8 and 9 can also have a cleaning device 23 with a cleaning nozzle 24 (not shown in Figures 8 and 9). In this regard, reference is made to the previous description.

[0262] The discharge device 2 can have a splash guard. The splash guard can, for example, be designed as a baffle element 41, as shown by way of example in Figures 8 and 9. The baffle element is arranged in particular in the region of the liquid inlet 13, in particular inside the housing assembly 12, downstream of the liquid inlet 13. The splash guard is preferably designed such that it reduces the penetration of gray water into the collection container 8. The design of the baffle element 41 shown in the figures is to be understood as an example. The splash guard can also have a different shape and / or a different arrangement. A corresponding splash guard can be provided in all embodiments.

[0263] In the discharge device 2 according to Figures 8 and 9, the housing assembly 12 can also be constructed in several parts, in particular having an outer housing and an inner housing. Reference is made to the previous description in this regard.

[0264] A further variant of the discharge device 2 is described below with reference to Figures 10 and 11. This variant corresponds in many respects to the variant shown in Figures 8 and 9, to whose description reference is hereby made. Functionally equivalent components are given the same reference numerals as in the previously described embodiments, to whose description reference is made.

[0265] In the variant shown in Figures 10 and 11, the filter component 6 is designed as an articulated folding filter unit. It has a hinged axis 42. The hinged axis is guided in a guide 43 in a side wall of the housing assembly 12.

[0266] The joint axis 42 enables deformation of the filter component 6.

[0267] The filter component 6 has guide elements, in particular in the form of guide pins 44. The guide pins 44 are guided in a slot 45 in a side wall of the housing assembly 12.

[0268] The guide pins 44 can be arranged in the region of the free end of the filter component 6. They can also be arranged at a different position on the filter component 6.

[0269] The guide pins 44 can be designed to be movable. In particular, they can be designed to be retractable or foldable. This allows the filter component 6 to be moved beyond the operating position into a cleaning position.

[0270] The filter joint can be pre-tensioned.

[0271] Slides 43, 45 can alternatively or additionally be provided in the cover 16.

[0272] According to a further variant, the filter component 6 can be designed to be movable and pivotable. The displacement of the filter component 6 is defined, in particular, by a guide. A device with a Whitworth mechanism can be provided, in particular, for supporting the filter component 6.

Claims

Patent claims 1. A drainage device (2) for a basin (1), in particular for a sink or wash basin, for filtering and removing solids (3) from a liquid (4), comprising 1.

1. a filter component (6) through which the liquid (4) can flow away, whereas the solids (3) remain on the surface (7) of the filter component (6) and 1.

2. a housing assembly (12) with a liquid inlet (13) and a liquid outlet (14), 1.

3. wherein the flat filter component (6) is arranged within the housing assembly (12) between the liquid inlet (13) and the liquid outlet (14), 1.

4. wherein the filter component (6) is displaceable and / or deformable in order to remove the filtered solids (3), and 1.

5. wherein the filter component (6) can be removed from the housing assembly (12) without tools.

2. Discharge device (2) according to claim 1, characterized in that the filter component (6) 2.

1. is clamped circumferentially on a roller conveyor (10) having at least two rollers (9) and is movable circumferentially by driving at least one of the rollers (9); or 2.

2. is mounted on a movable slider (29) of a sliding guide system (28) and can be moved circumferentially along the sliding guide system (28) by moving the slider (29); or 2.

3. is pivotable and / or deformable about at least one axis (1).

3. Discharge device (2) according to one of the preceding claims, characterized by an ejector (19) and a modular collecting container (8) for the filtered solids (3), which can be arranged on the housing assembly (12) in such a way that the filtered solids (3) ejected via the ejector (19) reach the collecting container (8), wherein the collecting container (8) can be separated from the discharge device (2) without tools.

4. Discharge device (2) according to one of the preceding claims, characterized in that the flat filter component (6) has an antimicrobial coating, preferably a nanosilver coating.

5. Discharge device (2) according to one of the preceding claims, characterized in that the filter component (6) is designed to be suitable for cleaning in a dishwasher.

6. Discharge device (2) according to one of the preceding claims, characterized by a multi-part housing assembly with an outer housing assembly (12) and an inner housing arranged therein.

7. Discharge device (2) according to claim 6, characterized in that the inner housing can be removed from the outer housing assembly without tools.

8. Discharge device (2) according to one of the preceding claims, characterized in that a cleaning device (23) for cleaning the filter component (6) as required, comprising at least one cleaning nozzle (24) for the targeted supply of a cleaning liquid to the filter component (6) and / or a mechanical cleaning element.

9. Discharge device (2) according to one of the preceding claims, characterized by at least one radiation source (25) for generating ionizing radiation, preferably a UV-C radiation source for generating UV-C radiation, in order to irradiate at least a portion of the flat filter component (6).

10. Discharge device (2) according to one of the preceding claims, characterized by a control device (11) which is designed to control, monitor and / or monitor a drive for the displacement and / or deformation of the filter component (6), preferably as a function of a user input and / or a detected flow rate of the liquid (4) and / or a sensor-detected degree of contamination of the filter component (6).

11. Discharge device (2) according to one of the preceding claims, characterized by a waste shredder (26) arranged upstream of the flat filter component (6) or downstream in the transport direction (T) in order to at least partially shred the solids (3) to be filtered off or already filtered off.

12. Discharge device (2) according to one of the preceding claims, characterized in that the filter component (6) is coupled to a drive by means of a clutch enabling slippage.

13. Discharge device (2) according to one of the preceding claims, characterized in that a drive for driving the filter component (6) has at least one hedgehog roller, the nub meshes of which engage in the filter component (6).

14. Discharge device (2) according to one of the preceding claims, characterized in that it has a fan that can be removed without tools.

15. Basin (1), in particular a sink or wash basin, comprising a drainage device (2) according to one of the preceding claims, in order to drain solids (3) from a liquid (4) flowing out of the basin (1) by means of the drainage device (2).

16. Method for filtering and removing solids (3) from a draining liquid (4) of a basin (1), in particular a sink or wash basin, comprising at least the following method steps: 16.

1. Directing the liquid (4) onto a filter component (6) through which the liquid (4) can flow away, so that the solids (3) remain on the surface (7) of the filter component (6); 16.

2. Driving, displacing or deforming the filter component (6) to remove the filtered solids (3).

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