Device for adding an additive to the flushing water of a toilet system

Abstract

Device (11) for adding an additive (24) to the flushing water of a toilet system (10), wherein the device (11) comprises the following: - A connecting piece (20) through which the rinsing water can flow; - a container (22) which can be filled with the additive (24); - a valve (42) designed to supply the additive (24) into the rinsing water; - a sensor (40) which detects a rinsing process; - an electrical control unit (44) connected to the sensor (40), which is configured to actuate the valve (42); so that the additive (24) can be introduced from the container (22) into the rinsing water via the valve (42) by means of the control unit (44) when the sensor (40) detects a rinsing process.

Description

Background of the invention

[0001] The invention relates to a device for adding an additive to the flushing water of a toilet system, comprising a connecting piece through which the flushing water flows, a container which can be filled with the additive, a valve and a sensor which detects a flushing process, as well as an electrical control unit connected to the sensor which is configured to actuate the valve. The invention also relates to a toilet system and a computer program product.

[0002] For cleaning, and especially disinfection, a toilet system, a flushing stream is generally unsuitable, or only partially suitable. It is therefore recommended to add an additive to the flushing stream before it passes through a toilet bowl or urinal. This can be, in particular, a cleaning agent, disinfectant, fragrance, or anti-stick agent. By adding the additive to the flushing stream, a corresponding effect can be achieved during flushing to maintain the cleanliness of the toilet system.

[0003] Currently, solid or liquid toilet blocks are often used to achieve a comparable effect; these are placed in or on the toilet bowl or urinal. A disadvantage of this method is that the additive is only released during the flushing process, and they have a relatively small storage capacity, requiring frequent replacement. Furthermore, toilet blocks often offend the aesthetic sensibilities of toilet users.

[0004] In contrast, EP 1 780 343 A2 describes the supply of, for example, cleaning agents to a rinse water stream via a reservoir and an intermediate storage tank. The cleaning agent is pumped from the reservoir into the intermediate storage tank, which is emptied during a rinse cycle due to the water pressure or flow rate of the rinse water. The reservoir can be filled via an access panel.

[0005] DE 69 312 178 T2 describes a device for introducing a disinfectant liquid into a sanitary installation. An electrically controlled dosing pump is used.

[0006] EP 1 311 730 A1 and US 1 178 912 A also describe the addition of cleaning agent to the flushing water of a sanitary fixture. An additive is diluted with water in an intermediate storage tank, and the mixture is introduced into the flushing water stream via a siphon during a flushing cycle. After the flushing cycle, the intermediate storage tank is refilled with additive from a reservoir, similar to a birdbath.

[0007] Further descriptions of comparable facilities can be found, for example, in US 2004 / 0128750 A1, US 1 116 753 A, DE 24 50 197 A1, DE 960 890 C, DE 200 11 780 U1, DE 682 161 C, US 1 643 286 A and DE 21 00 795 A1. Object of the invention

[0008] The object of the invention is to improve existing systems and to create a low-maintenance and user-friendly device for the reliable and process-safe addition of an additive to the flushing water of a toilet system. The invention also aims to provide a corresponding toilet system and a computer program. Description of the invention

[0009] This problem is solved by a device for introducing an additive into the flushing water of a toilet system according to claim 1, wherein the additive can be introduced from a container into the flushing water via a valve by means of a control system when a sensor detects a flushing process. The problem is also solved by a toilet system according to claim 13.

[0010] In the context of the present invention, the term toilet installation can refer to a single toilet or urinal, or to an installation comprising several flushable units, i.e., several toilets and / or urinals. The term additive can, in particular, refer to a liquid, wherein the liquid may comprise several components, especially several components with different effects.

[0011] According to the invention, the device includes a sensor suitable for detecting a rinsing process. The sensor can be, for example, a vibration sensor or a distance sensor. A sensor that uses ultrasound for distance measurement is particularly suitable. If the sensor registers a rinsing process, the valve is actuated by means of the electrical control, whereby a specific quantity of the additive is directed into the connecting piece, through which a rinsing water stream flows during the rinsing process. This allows the additive to enter the rinsing water stream.

[0012] Regular flushing, thanks to the additive, supports the cleaning / disinfection of the toilet facilities. In particular, it helps prevent deposits from forming in otherwise hard-to-reach areas.

[0013] Precise dosing can be achieved via the electrical control. Furthermore, the valve opening time can be determined independently of the water pressure or the flow rate of the rinse water. For example, the additive can be added to the rinse water only at the end of the rinsing process. Alternatively, the additive can be added only every other rinse cycle.

[0014] Preferably, the control system is programmable. This allows for fine-tuned process optimization, which can also be adjusted after the device according to the invention has been installed.

[0015] The described solution using an electrical control system also has the advantage over the numerous fluid-mechanical solutions known from the prior art that, apart from the actual supply of the additive, the rinsing water flow is not interfered with. Thus, it is not disrupted.

[0016] Furthermore, the device according to the invention can easily be designed as a supplementary solution and installed largely independently of the components of conventional toilet installations. In particular, the connecting piece can simply be used in place of the pipe section that is usually used to connect a toilet bowl or urinal to a flushing water supply when installing the device. The connecting piece preferably has one or more seals. It is even more preferably the connecting piece is designed so that its length can be easily adjusted, e.g., by cutting it to size.

[0017] In a preferred embodiment of the device, the container is arranged or integrated into a concealed cistern within the toilet system. Modern toilet systems often feature concealed cisterns, which are particularly suitable for accommodating a concealed cistern. Advantageously, a concealed cistern known from the prior art can be used to support the container and, if necessary, other components of the device. This can be achieved either by using only the existing elements of the known concealed cistern, or by designing and integrating a supplementary support structure onto the concealed cistern. Advantageously, the container is designed to allow for multiple mounting options. However, embodiments of the invention are also conceivable in which the components of the device are arranged completely independently of the concealed cistern.

[0018] In the case that the container is installed flush with the wall, the device preferably includes a surface-mounted station, wherein the container is connected to the surface-mounted station, in particular by means of a hose, and wherein the container can be filled via the hose at a closable opening in the surface-mounted station. In this way, the container can be conveniently refilled regularly. Preferably, the opening can be closed by means of a screw-on cap with a seal. In this context, a surface-mounted station also includes an element that is embedded in a wall. Preferably, such a surface-mounted station has standardized dimensions, preferably corresponding to a socket opening, and can therefore be advantageously installed in a wall that has not yet been finished.The surface-mounted station preferably has a cover, optionally lockable, which can be used to cover and secure the station. In particular, the material or surface of the cover can be selected so that it blends seamlessly with a finished wall.

[0019] The surface-mounted station preferably has a battery compartment and / or a charging port for a rechargeable battery to power the device. For example, a 9V block battery can be used for power supply. This can be replaced periodically. Alternatively or additionally, the surface-mounted station can have a rechargeable battery that can either be removed from the station for charging or charged via a charging port, such as a USB port on the station. If the surface-mounted station has a charging port, the battery can also be located outside the station, for example, in a flush-mounted installation. The advantage of using an independent power source is that the device can be used as a supplementary solution, independent of the planning of other electrical installations.However, a variant of the setup is also conceivable in which the power supply is provided via fixed cabling in a house network.

[0020] Depending on the specific design of the device, the sensor can be mounted on the tank, the connector, or the toilet cistern. The sensor's location offers various advantages during installation and repairs. The sensor can be secured to its mounting point using adhesive or a clamp.

[0021] The valve can be positioned on the container, on a line running from the container to the connector, or on the connector itself, regardless of the sensor's location. If the valve is located on the line, it is preferably positioned near an inlet where the line connects to the connector after the device is installed. Optionally, the valve can be fixed to the outer wall of the connector, for example, with adhesive or a clamp. Alternatively, the valve can be positioned directly at the inlet on the connector. In this case, the inlet and valve can be considered a single component. The line is preferably flexible and can be cut to the appropriate length during installation. The line can be connected to the container, valve, and / or connector, particularly via push-fit connectors. Optionally, the line can be fixed to surrounding components.

[0022] Regarding its use in urinals, it can be particularly advantageous to equip the connector with the sensor and valve (and, if applicable, the pipe) and to design it for connection to braided hoses. This can be achieved, for example, by means of threads at each end of the connector. Urinals generally do not have a cistern, and the flush water supply is often provided by braided hoses connecting a water line to the urinal. A connector designed accordingly can be inserted at any point along this connection.

[0023] In one configuration, the sensor is an ultrasonic sensor and the valve is a solenoid valve. Sensors that determine distance from the transit time of an ultrasonic signal are readily available, inexpensive, reliable, and robust. Such sensors can be used to detect flowing water during a flushing process. A corresponding evaluation unit in the control system can then trigger the valve's activation based on the sensor data. The sensor-valve system can be calibrated during initial installation or subsequently as part of a fine-tuning process to ensure reliable operation.

[0024] Designing the valve as a solenoid valve allows for a more advantageous configuration of the device. Depending on the specific requirements of the chosen valve, the inclusion of additional electronic components may be necessary.

[0025] Preferably, the device includes a means for manually adjusting the amount of additive dispensed per flushing cycle. This allows the user to adjust the dispensed amount of additive in situ. This adjustment can be achieved, for example, via a mechanical throttle. Preferably, however, the valve's opening time, determined by the controller, is adjusted. This can be accomplished, for example, via DIP switches (Dual In-line Package). Alternatively, user-friendly controls, such as a quantity adjustment screw or a digital display, can be provided on the surface-mounted station for this purpose.

[0026] The additive preferably contains a surfactant, a fragrance, a dye, a bactericidal component, nanoparticles, a foaming agent, and / or a descaler. In particular, it is intended that each of the aforementioned active components is biodegradable. A beneficial overall effect can be achieved through a combination of these active components. Preferably, the additive is in liquid form. Alternatively, the additive can also be in the form of a free-flowing solid.

[0027] In one variant, the device has an additional sensor, valve, and / or connector to supply multiple toilet units from the tank. Alternatively, the device can have more than two sensors, valves, and connectors each. This makes the device advantageously suitable for use in large toilet facilities, such as those found in airports, schools, stadiums, or similar locations. In this variant, a sensor and a valve are preferably located on or near each flushable toilet unit. The tank is designed to allow for the connection of multiple lines.

[0028] Preferably, the container has a click system designed for connecting it to another container (additional container) and / or the hose and / or pipe. Such a system makes installation and manufacturing of the device particularly advantageous. The respective connection points of the click system are sealed, especially against unintentional leakage of the additive. In alternative embodiments, two or more components of the device can be formed in one piece.

[0029] The device can, in particular, include a level sensor for determining the quantity of the additive in the container. The level sensor can enable the determination of the remaining quantity of the additive in the container. The level sensor can also be advantageous during filling of the container to prevent overflow. The level sensor can be mechanical or electrical. In alternative embodiments of the invention, a level sensor can be omitted. For example, the quantity of the additive can also be estimated via optical inspection or calculated using an evaluation unit of the control system.

[0030] As mentioned above, the task is also solved by the toilet facility, which has the device for supplying the additive in one of its variants.

[0031] An unclaimed method for adding the additive to the flushing water of the toilet system comprises detecting a flushing process by means of the sensor, whereupon the valve is controlled by means of the control system to add a predetermined amount of the additive to the flushing water of the toilet system.

[0032] A computer program product comprising computer program code can, particularly when executed by the control of the facility, enable the performance of the aforementioned procedure.

[0033] Further advantages of the invention will become apparent from the description and the drawing. Likewise, the features mentioned above and those described in more detail below can each be used individually or in any combination according to the invention. The embodiments shown and described are not to be understood as an exhaustive list, but rather serve as examples for illustrating the invention. Detailed description of the invention and drawing

[0034] They show: Fig. 1a a perspective view of a toilet facility with a device for adding an additive to a flushing water stream; Fig. 1b a frontal view of the toilet facility from Fig. 1a; Fig. 1c a side view of the toilet facility from the Fig. 1a and Fig. 1b; Fig. 1d a rear view of the toilet facility from the Fig. 1a - 1c; Fig. 1e a top view of the toilet facilities from the Fig. 1a - 1d; Fig. 1f a perspective view of the isolated device for feeding the additive into the flushing water stream of the toilet system from the Fig. 1a - 1e; Fig. 2. Partial side view of another toilet facility with a further variant of a device for adding an additive to a flushing water stream; Fig. 3. Partial side view of another toilet facility with a further variant of a device for adding an additive to a flushing water stream; Fig. 4 a connecting piece of another toilet facility with another variant of a device for introducing an additive into a flushing water stream in an isolated perspective view; Fig. 5. Excerpt showing a perspective view of another toilet facility with another variant of a device for adding an additive to a flushing water stream, as well as a detailed representation of a connecting piece in an isolated side view; Fig. 6 a top-cleaning station of a toilet facility with a device for adding an additive to a flushing water stream.

[0035] Fig. Figure 1a shows a toilet facility 10 in a perspective view. The toilet facility 10 has a fixture 11 (see also Fig. 1f) for the addition of an additive 24. A top-coating station 12 (see Fig. 6) The installation 11 is not shown here. The toilet installation 10 has a concealed construction 14 with a drainage device 15 and a cistern 16. Flush water can be directed from the cistern 16 via a pipe system 18 of the toilet installation 10 to a connecting piece 20. A toilet bowl 17 (not shown here for clarity, see below) is connected to the connecting piece 20 and to the drainage device 15. Fig. 1c) connected to toilet facility 10. A container 22 is filled with the additive 24.

[0036] The container 22 is arranged or formed on a support structure 26, which in turn is arranged or formed on the concealed structure 14. In the illustrated embodiment, the container 22 partially encloses a portion of the pipe system 18. This provides an advantageous, space-saving arrangement or design of the container 22. The container 22 is connected to a hose 30 by means of a click system 28. The hose 30 runs from the container 22, partly within the concealed structure 14, to an interface 32 at the surface-mounted station 12 (see Fig. 6) The additive 24 can be refilled in the container 22 using the hose 30.

[0037] Furthermore, between container 22 and an inlet 34 (see Fig. 1c) A flexible line 36 is attached to the connecting piece 20. The additive 24 can be conveyed from the container 22 to the inlet 34 via the line 36 (see Fig. 1c) be directed.

[0038] Fig. 1b shows toilet facility 10 from Fig. 1a in a frontal view. Through Fig. 1b describes the structure of the concealed construction 14 as well as the position of the container 22 and the interface 32 to the surface plastering station 12 (see Fig. 6) clarifies. The container 22 is preferably located above the connecting piece 20. In the illustrated embodiment, the concealed construction 14 has (mostly) vertical sections 141, 142 and (mostly) horizontal sections 143, 144, 145, and a housing 146 for the cistern 16 (see Fig. 1a) and a connection 147 to a surface-mounted control panel 19 (not shown here for clarity, see Fig. 1c). The interface 32 protrudes from the front of the vertical portion 141 of the concealed construction 14. The interface 32 is connected at its rear (not visible here) to the hose 30 (see Fig. 1a) connected.

[0039] Fig. 1c shows toilet facility 10 from the Fig. 1a and Fig. Figure 1b shows a side view. The toilet bowl 17 with its attachments, a toilet seat 171 and a toilet lid 172, as well as the flush-mounted control panel 19, are each shown with dashed lines. In the illustrated embodiment, a standard siphon is concealed within the toilet bowl 17. The connecting piece 20 preferably has a seal 38 for sealing the connection to the toilet bowl 17. Furthermore, the connecting piece 20 has the inlet 34, from which the line 36 leads to the container 22. Preferably, the inlet 34 is located in the front third of the connecting piece 20 (near the seal 38). This ensures that the connecting piece 20 can be cut to length to accommodate the geometry of the toilet bowl 17 and / or the expansion of a wall (not shown).

[0040] The cable 36 can optionally be fixed to the surrounding components using a hose clamp, cable tie, or similar means (not shown). As mentioned, in the illustrated embodiment, the hose 30 runs partially within the vertical portion 141 of the flush-mounted construction 14. This ensures compact integration of the device 11. However, the position and fixing of the components of the device 11 relative to the flush-mounted construction 14 can, in principle, be implemented in any way.

[0041] Fig. 1d shows a rear view of toilet facility 10 from the Fig. 1a - 1c. The toilet bowl 17 (see Fig. 1c) is in the following format for better clarity. Fig. Figure 1d not shown. A sensor 40 and a valve 42 are arranged at the outlet of the container 22 to the line 36. In the illustrated embodiment, the sensor 40 and the valve 42 are housed in a common enclosure. The sensor 40 detects a rinsing process, in particular by detecting the resulting movement / vibrations. By means of a control unit 44 (see Figure 1d). Fig. 6) The valve 42 is then opened at a predefined time and for a predefined duration, and a quantity of the additive 24 in the container 22 is introduced into the rinse water flow via line 36, advantageously utilizing gravity and / or a suction effect generated by the rinse water flow. In an embodiment of the invention not shown, the transport of the additive 24 can be at least assisted by a conveying device, for example, a pump.

[0042] The one via control 44 (see Fig. 6) The specific time of actuation of valve 42 and the duration for which valve 42 remains open can optionally be permanently programmed or manually adjustable. Manual adjustment is possible, in particular, via DIP switches on the surface-mounted station 12 (see Fig. 6) be given (not shown).

[0043] Fig. Figure 1e shows a top view of toilet facility 10 from the Fig. 1a - 1d. The surface-mounted control panel 19 (see Fig. 1c) is hidden for clarity. The toilet bowl 17 and the toilet seat 172 are shown with dashed lines. Fig. 1e serves to illustrate the points in the Fig. Toilet facility 10 described in 1a - 1d.

[0044] Fig. Figure 1f shows an isolated representation of facility 11 from the Fig. 1a - 1e in a perspective view. Device 11 has interface 32 and hose 30. Hose 30 is connected to container 22 via the click system 28. Sensor 40 and valve 42 are located at the outlet of container 22. Line 36 runs from the outlet of container 22 to inlet 34 at connector 20. Connector 20 has seal 38.

[0045] The illustrated design of the device 11 is to be understood as an example. In particular, in variants of the invention, the bottom of the container 22 can have a slope towards the outlet, and the positioning of the components can be advantageously adapted to the respective circumstances.

[0046] It is also conceivable that the container 22 has multiple connections for the hose 30 and / or an additional container (not shown) and / or for the line 36. This allows for increased flexibility in the use of the device 11. For example, depending on the prevailing geometric constraints, the hose 30 can be connected to a conveniently located port, while the remaining hose connections are closed with caps. If a container 22 has multiple connections for the line 36, several flushable units can be supplied from one container 22. In this case, an arrangement of several sensors 40 and valves 42 on the respective flushable units is advantageous.

[0047] Fig. Figure 2 shows a partial side view of another toilet facility, number 10. Unlike the one in the Fig. In the embodiment shown in Figures 1a-1f, a valve 42 is located near an inlet 34 of a connecting piece 20 on a line 36. A sensor 40 is located, as in the previous embodiment, on a container 22. The valve 42 or the line 36 can optionally be attached to the connecting piece 20.

[0048] Fig. Figure 3 shows a partial side view of another toilet unit 10. In contrast to the previously shown versions, a sensor 40 is located on a cistern 16. The arrangement of the other components of the toilet unit 10 corresponds to that shown in Fig. 2.

[0049] Fig. Figure 4 shows a connecting piece 20 of another toilet facility 10 (see e.g. Fig. 1c). In contrast to the previously described embodiments, a sensor 40 is located on the connecting piece 20. A valve 42 is located analogously to those described in the Fig. 2 and Fig. The three illustrated embodiments are located near an inlet 34. In contrast to the embodiment shown here as an example, the valve 42 can also be located at or within the inlet 34, thus enabling a one-piece design of these components. Fig. Cables used for signal transmission and power supply are indicated at sensor 40 and valve 42. For clarity, these are not shown in the preceding diagrams. Fig. 1a - 3 not shown. The cables are used for the electrical connection of the components to a controller 44 (see Fig. 6) or for energy supply.

[0050] Fig. Figure 5 shows a partial perspective view of another toilet facility 10. In the illustrated embodiment, the toilet facility 10 includes a urinal (not shown) instead of a toilet bowl 17 (see Figure 5). Fig. 1c). Accordingly, a concealed installation 14 is adapted to accommodate the urinal. A container 22 is arranged above the inlet of the flushing water into the urinal on a support structure 26. A cistern 16 (see e.g. Fig. 3) is not present. A sensor 40 and a valve 42 are located analogously to the version from Fig. 4 at or near a connecting piece 20. A line 36 runs from the container 22 to an inlet 34 at the connecting piece 20. The connecting piece 20 is shown in detail in Fig. 5 shown enlarged. In the detailed view, analogous to Fig. 4, the wiring is indicated. In contrast to the previously described versions, the connecting piece 20 has a thread on both sides and can thus be inserted into the flushing water inlet of the urinal, for example by means of a connection to braided hoses 46 used for water supply.

[0051] Fig. Figure 6 shows a surface cleaning station 12 of a toilet facility 10 (see e.g. Fig. 1c). The surface-mounted station 12 is connected to an interface 32 (see e.g. Fig. 1a) connected to the hose 30. In the illustrated embodiment, the surface-mounted station 12 has a cover 48, shown in partial view, which can optionally be lockable. The surface-mounted station 12 contains the control unit 44, here in the form of a single-board computer. A battery 50 in a battery compartment 51 provides the power supply. Connecting cables are again indicated in the illustration.

[0052] Furthermore, the surface-mounted station 12 has a screw-on cover 52, which has an opening at the interface 32 (see e.g. Fig. 1a) covered. If the sealing cap 52 is removed, a container 22 (see e.g. Fig. 1a) via hose 30 with additive 24 (see e.g. Fig.1a) filled or refilled. A level sensor 54 can be arranged or designed behind the closure lid 52 to enable monitoring of the quantity of additive 24 in the container 22. The level sensor can, for example, be implemented using a float system (not shown).

[0053] Referring to the figures in the drawing, the invention relates to a device 11 for adding an additive 24 to the flushing water of a toilet system 10, wherein the device 11 comprises a connecting piece 20, a container 22, a sensor 40, a valve 42, and a control unit 44. During a flushing process, the connecting piece 20 can be supplied with flushing water from the toilet system 10. The container 22 can be filled with the additive 24. When the valve 42 is actuated, a quantity of the additive 24 can enter a flushing water stream in the connecting piece 20. The sensor 40 can detect a flushing process and is electrically connected to the control unit 44. The control unit 44 is, in turn, configured to actuate the valve 42. The invention also relates to the toilet system 10, which comprises the device 11.Furthermore, a computer program product to enable advantageous use of facility 11 is presented. Reference symbol list 10 toilet facilities 11. Establishment 12 surface cleaning stations 14. Concealed construction 141 vertical share 142 vertical share 143 horizontal share 144 horizontal share 145 horizontal share 146 Enclosure 147 Connection 15 Drainage device 16 cisterns 17 toilet bowls 171 Toilet seat 172 toilet seats 18 pipe system 19 Surface-mounted control panel 20 connectors 22 containers 24 Additive 26 Support structure 28-click system 30 hose 32 interface 34 Admission 36 Management 38 Seal 40 Sensor 42 valve 44 Control 46 Armored hose 48 Cover 50 battery 51 Battery compartment 52 sealing caps 54 Level sensors QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] EP 1 780 343 A2

[0004] DE 69 312 178 T2

[0005] EP 1 311 730 A1

[0006] US 1 178 912 A

[0006] US 2004 / 0128750 A1

[0007] US 1 116 753 A

[0007] DE 24 50 197 A1

[0007] DE 960 890 C

[0007] DE 200 11 780 U1

[0007] DE 682 161 C

[0007] US 1 643 286 A

[0007] DE 21 00 795 A1

[0007]

Claims

[1] Device (11) for adding an additive (24) to the flushing water of a toilet system (10), the device (11) comprising the following: - A connecting piece (20) through which the rinsing water can flow; - a container (22) which can be filled with the additive (24); - a valve (42) designed to supply the additive (24) into the rinsing water; - a sensor (40) which detects a rinsing process; - an electrical control unit (44) connected to the sensor (40), which is configured to actuate the valve (42); so that the additive (24) can be introduced from the container (22) into the rinsing water via the valve (42) by means of the control unit (44) when the sensor (40) detects a rinsing process. [2] Device (11) according to claim 1, wherein the container (22) is arranged or formed on a concealed construction (14) of the toilet facility (10). [3] Device (11) according to claim 2, wherein the device (11) has a top-coating station (12), wherein the container (22) is connected to the top-coating station (12) by means of a hose (30) and wherein the container (22) can be filled via the hose (30) at a closable opening of the top-coating station (12). [4] Device (11) according to claim 3, wherein the surface-mounted station (12) has a battery compartment (51) and / or a charging port for a rechargeable battery to supply the device (11) with voltage. [5] Device (11) according to one of the preceding claims, wherein the sensor (40) is arranged on one of the following components: - At the container (22); - at the connecting piece (20); or - on a toilet cistern (16). [6] Device (11) according to one of the preceding claims, wherein the valve (42) is arranged on one of the following components: - At the container (22); - on a line (36) from the container (22) to the connecting piece (20); or - at the connecting piece (20) [7] Device (11) according to any of the preceding claims, wherein the sensor (40) is an ultrasonic sensor and / or the valve (42) is a solenoid valve. [8] Device (11) according to one of the preceding claims, wherein the device (11) has a possibility to manually adjust the amount of additive (24) dispensed per rinsing process. [9] Device (11) according to any of the preceding claims, wherein the container (22) contains the additive (24), wherein the additive (24) comprises: - a surfactant, in particular a biodegradable surfactant; - a fragrance, in particular a biodegradable fragrance; - a dye, in particular a biodegradable dye; - a bactericidal component, in particular a biodegradable bactericidal component; - Nanoparticles, especially biodegradable nanoparticles; - a foaming agent, in particular a biodegradable foaming agent; and / or - a descaler, especially a biodegradable descaler. [10] Device (11) according to one of the preceding claims, wherein the device (11) has a further sensor (40), a further valve (42) and / or a further connecting piece (20) to be able to supply several units of the toilet system (10) from the container (22). [11] Device (11) according to one of the preceding claims, wherein the container (22) has a click system (28) which is designed to connect the container (22) to another container (22) and / or the hose (30) and / or the line (36). [12] Device (11) according to one of the preceding claims, wherein the device (11) has a level sensor (54) for determining a quantity of the additive (24) in the container (22). [13] Toilet facility (10) with a device (11) according to one of the preceding claims.

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