Toilet and channel disinfection

Abstract

The invention discloses a closestool and channel disinfection, and particularly relates to a disinfection system for a closestool, and the disinfection system comprises a closestool water tank; the water outlet is positioned at the bottom of the closestool water tank; at least one disinfection channel extending from the drain opening of the toilet water tank to a base for the toilet; and a valve system in the toilet tank, the valve system configured to evacuate the toilet tank below a predetermined level through the drain port.

Description

Technical Field

[0001] The present application relates generally to disinfection of toilet tanks and water passages fluidly connected to toilet tanks. Background Art

[0002] A significant hygiene issue in bathrooms is inside the toilet tank. In one field study, nearly 75% of participants were found to have iron deposits and black biofilm inside their toilet tanks. This is difficult to control. Microorganisms from the air can be drawn into the tank through the gap between the lid and the tank with each flush. Here, microorganisms may grow in the tank water. One problem is that any microorganisms present in the tank water are flushed into the basin with each use. These microorganisms also become aerosolized with each flush and have the potential to cause harm to the user. Currently, the interior surfaces of toilet tanks are not cleaned or disinfected regularly and automatically.

[0003] Furthermore, biofilms will continue to grow until they are wiped off by the user, which may be done infrequently. Currently there are few solutions available to keep tank water and tank walls disinfected. Today, water sterilization is primarily accomplished by chlorinating the water supply at a water treatment plant. One problem is that many toilets are not always connected to a chlorinated water system, and some buildings or homes are located at the end of long pipes where the chlorine has already reacted or dissipated. Summary of the invention

[0004] The present application discloses a disinfection system for a toilet, the disinfection system comprising:

[0005] Toilet tank;

[0006] A drain outlet, the drain outlet being located at the bottom of the toilet tank;

[0007] at least one disinfection passage extending from the drain of the toilet tank to a base for the toilet; and

[0008] A valve system in the toilet tank is configured to empty the toilet tank below a predetermined level through the drain opening.

[0009] The present application also discloses a disinfection system for a toilet, the disinfection system comprising:

[0010] Toilet tank;

[0011] A drain outlet, the drain outlet being located at the bottom of the toilet tank;

[0012] at least one disinfection passage extending from the drain of the toilet tank to a base for the toilet; and

[0013] A disinfecting material generator is coupled to the toilet tank.

[0014] The present application also discloses a method for disinfecting a toilet, the method comprising:

[0015] receiving indication of empty toilet tank;

[0016] generating a disinfection command for a disinfection system in the empty toilet tank; and

[0017] Material is provided from the disinfection system to an interior surface of the empty toilet tank or to a disinfection passage fluidly coupled to the empty toilet tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] According to exemplary embodiments, exemplary embodiments are described herein with reference to the following drawings.

[0019] Figure 1 An exemplary toilet for use with the disinfection system is illustrated.

[0020] Figure 2A An exemplary valve system for a disinfection system is illustrated.

[0021] Figure 2B An exemplary valve system for a disinfection system is illustrated.

[0022] Figure 3 An exemplary valve system for a disinfection system is illustrated.

[0023] Figure 4 An exemplary valve system for a disinfection system is illustrated.

[0024] Figure 5 An exemplary light disinfection apparatus is illustrated.

[0025] Figure 6 An exemplary misting disinfection device is illustrated.

[0026] Figure 7 An exemplary misting disinfection device with increased air flow is illustrated.

[0027] Figure 8 An exemplary ultrasonic disinfection apparatus is illustrated.

[0028] Fig. 9 An exemplary flow chart for disinfecting a substantially empty water tank is illustrated.

[0029] Fig.10 An exemplary chemical dispensing apparatus is illustrated.

[0030] Fig.11 An exemplary electrolyzed water dispensing apparatus is illustrated.

[0031] Fig.12 An exemplary ozone dispensing apparatus is illustrated.

[0032] Fig.13 An exemplary bacteria dispensing apparatus is illustrated.

[0033] Fig.14 Exemplary lamp and catalyst devices are illustrated.

[0034] Fig.15 An exemplary controller for use with any of the disinfection systems is illustrated. DETAILED DESCRIPTION

[0035] The following embodiments include apparatus and techniques for disinfecting the interior of a toilet tank and / or passages extending from a toilet tank. At least one passage may extend to the rim of a toilet bowl. At least one passage may extend to a sump of a toilet bowl. Some of the following examples include techniques specifically applicable to an empty toilet tank. In some examples, apparatus and processes are included for substantially completely emptying a tank to remove water. Some of the following examples include techniques applicable to a toilet tank that is at least partially filled with water or filled to a predetermined flush volume.

[0036] The following embodiments include devices and techniques for reducing, mitigating, or preventing biofilm in plumbing fixtures and / or disinfecting plumbing fixtures. Plumbing fixtures may include pipes, faucets, bathtubs, showers, water softeners, water heaters, toilets, or other equipment. The term "plumbing fixture" refers to a device connected to a plumbing system of a house, building, or other structure. The term "bathroom fixture" may more specifically refer to individual types of plumbing fixtures found in bathrooms. The term "kitchen fixture" may more specifically refer to individual types of plumbing fixtures found in kitchens.

[0037] Figure 1 An exemplary toilet (plumbing fixture) for use with a disinfection system is illustrated. Figure 1, a toilet 1100 with a disinfection system is shown in an exemplary embodiment according to the present disclosure. The toilet 1100 may include a water tank (e.g., a container, a water reservoir, etc.), shown as a water tank 101, and a base (e.g., a base, a bracket, a support, etc.), shown as a base 1104. The water tank 101 can be connected to and supported by the base 1104, which can be positioned on the floor. In some embodiments, the water tank 101 and the base 1104 can be formed together as a single component. In some other examples, the water tank 101 can be installed on or in a nearby wall. The water tank 101 is configured to receive water (e.g., via a water filling valve of the toilet 1100, etc.) and store water between flushing. The base 1104 includes a bottom basin 1105, and can be configured to receive water from the water tank 101 to flush the contents in the bottom basin into a sewage pipe. In some embodiments, the base 1104 can be installed on a wall of a washroom, and the bottom basin can be configured to receive water from a fluid supply source (e.g., a household water supply).

[0038] The basin 1105 of the base 1104 includes a sump (e.g., a container) and a drain, wherein water and waste are collected in the sump until removed through the drain (e.g., when the contents of the basin are flushed into a sewer pipe). The toilet 1100 further includes a trapway, and the trapway can be fluidly connected to the basin via the sump. The trapway fluidly connects the sump to the drain.

[0039] Figure 2A , Figure 2B , Figure 3 and Figure 4 An exemplary system for removing or draining substantially all of the water from a toilet tank 101 is illustrated. Although water is typically drained from a toilet tank 101 during a flush (e.g., during a flush cycle), not all of the water is removed. The remaining water may allow biofilm or other waterborne microorganisms to continue to survive in the tank. If all or substantially all of the water in the tank 101 is drained, waterborne bacteria or biofilms are removed as well. In addition, completely removing the water from the tank 101 allows the disinfection system to treat the entire interior of the tank 101.

[0040] Biofilms are colonies of one or more microorganisms that can grow on various surfaces. Exemplary microorganisms that form biofilms include bacteria, fungi, and protists. Biofilms can form in bodies of water, plant tissue, animal tissue, teeth, underwater, and in other organisms. In general, biofilms can form in any area that is exposed to water. Plumbing fixtures, fittings, and water supply systems and installations for washing, showering, bathing, and similar equipment may include areas that are exposed to water.

[0041] Figure 2AThe illustration shows a tank 101, a cover 127, a fill valve 123, a flush valve 121, and a float 125. The fluid delivery system of the toilet may include any one or combination of a tank 101 for holding a certain amount of water, a fill valve 123 for transferring water from a water supply to the tank 101, a flush valve 121 for transferring water from the tank 101 to the bowl, and a passage for transferring (e.g., transporting) water and waste from the bowl to another element (e.g., a waste pipe, a storage tank, etc.). Additional, different, or fewer components may be included.

[0042] The flush valve 121 is configured to open and close a passage (e.g., a rim walkway) from the water tank 101 to the bottom bowl of the toilet. The fill valve 123 may include a valve body having a water inlet, which is configured to receive water from a water supply, and a float (e.g., a float cup) configured to control the operation of the fill valve 123 based on the water level in the water tank 101. The fill valve 123 may also provide water to the flush valve 121 for introducing water into the passage from the water tank 101 to the bottom bowl. The water may be passed through a pipe ( Figure 2A ) is supplied from the water filling valve 123 to the flushing valve 121.

[0043] In some conventional toilets, the flush valve 121 is higher than the bottom surface of the water tank 101. Water may collect in the vertical space between the flush valve 121 and the bottom surface of the water tank 101. Biofilm and other microorganisms may grow or otherwise exist in the collected water. Figure 2A The flush valve 121 shown in FIG. 1 extends to be flush with the bottom surface of the water tank 101. The flush valve 121 can also extend below the bottom surface of the water tank 101. This eliminates water accumulation between the flush valve 121 and the bottom surface of the water tank 101.

[0044] Figure 2A The embodiment also eliminates water accumulation between the flush valve 121 and the bottom surface of the water tank 101 by placing the opening of the flush valve 121 flush with or below the bottom surface of the water tank 101. In addition, Figure 2B The bottom surface of the water tank 101 includes an inclined portion 131 at the bottom of the water tank 101. The inclined portion 131 is relative to the horizontal plane ( Figure 2B The horizontal line is substantially parallel to the surface of the earth and / or perpendicular to the direction of gravity. The inclined portion 131 allows water at the bottom of the tank 101 to flow toward the opening of the flush valve 121, so that the tank 101 is completely emptied. The empty tank hinders the growth of biofilm or other microorganisms and also provides an opportunity for disinfection of the internal surface of the tank 101.

[0045] Figure 3The chamber 132 at the bottom of the water tank 101 is shown. The chamber 132 may include a float F that detects whether there is any residual water in the water tank 101. The float may be positioned at a predetermined vertical distance (e.g., 1-10 mm) above the valve plate V or opening of the water tank 101. The float F may be replaced with other types of sensors (e.g., a water sensor). The float F may be mechanically coupled to the valve plate V of the flush valve 121 so that when the float F is suspended by any amount of water in the water tank 101, the valve plate V remains open, allowing water to flow out of the water tank 101. When the float F rests on the bottom surface of the chamber 132, the valve plate V may be allowed to close.

[0046] Figure 4 Another example of an electronically controlled flush valve 121 is illustrated. A float F or other sensor provides sensor data indicating the water level in the water tank 101 to the controller 100. The controller 100 provides a command to the flush plate V or an actuator coupled to the flush plate V. The actuator may include a motor or a solenoid. The controller 100 determines whether the water level is below a predetermined threshold (for example, the threshold may be a minimum water level that can be measured). The controller 100 may maintain the flush plate V of the flush valve 121 in an open state until a predetermined threshold is reached. When the predetermined threshold is reached, the controller 100 may close the flush plate V.

[0047] In another example, the flushing plate V can be replaced with a pump. The controller 100 instructs the pump to draw water from the water tank 101 until a predetermined threshold is reached. When the predetermined threshold is reached, the controller 100 can turn off the pump.

[0048] The controller 100 may also be in communication with the disinfection system 102. The disinfection system 102 may be implemented according to any of the following embodiments. The controller 100 may send instructions or commands to the disinfection system 102. For example, when the controller 100 has determined that the water in the water tank 101 has been completely emptied, the controller 100 may instruct the disinfection system 102 to disinfect the interior of the water tank 101. The disinfection dispenser 102 is configured to dispense disinfecting material into the toilet tank 101 and into at least one disinfection channel extending from the drain of the toilet tank to the base for the toilet.

[0049] Although described and illustrated in a toilet tank, disinfection system 102 may be implemented in a toilet seat, a trapway for a toilet, a trapway for a lavatory, a whirlpool, a garbage disposer, a sink, a fruit / vegetable washer, a fragrance dispenser, a humidifier, or other equipment.

[0050] Each example herein may be installed in a toilet tank 101 having a glazed interior surface, or otherwise coupled or associated with a toilet tank. Glazing the interior of the tank reduces the surface roughness that facilitates the attachment of biofilm or other microorganisms. The interior of the tank 101 may be coated with an antimicrobial coating or a highly hydrophobic coating. Additionally or alternatively, the antimicrobial agent (silver) may be embedded in the glaze or directly embedded in the ceramic raw material.

[0051] Figure 5 An example light disinfecting device 141 (exemplary disinfecting system 102), a toilet tank 101, a drain 135 at the bottom of the toilet tank 101, at least one disinfecting channel extending from the drain of the toilet tank to the base of the toilet, and a flush valve 121 configured to empty the toilet tank through the drain to below a predetermined level are shown. Additional, different, or fewer components may be included.

[0052] The light disinfection device 141 includes one or more light sources that emit light of a predetermined wavelength or frequency into the interior of the water tank 101. The one or more light sources can be arranged to illuminate substantially all of the inner walls of the toilet water tank 101. For example, the one or more light sources can be arranged so that the tank of the flush valve 121 does not cast a shadow between the light source and the inner wall. Figure 5 As shown, to avoid such shadows, one or more light sources can be positioned on opposite sides of the flush valve 121. Additionally or alternatively, one or more light sources can be mounted on the inside of the lid of the toilet tank 101 and direct light downward into the toilet tank 101.

[0053] One or more light sources can emit various types of radiation (e.g., ultraviolet (UV) light). The ultraviolet light can have a predetermined frequency or wavelength, which can be a range of wavelengths or frequencies of light. The predetermined frequency or wavelength can be configured to reduce or eliminate biofilm or other microorganisms. The controller 100 can send a command to the lamp to start the lamp or stop the lamp. The controller 100 can send a command to the lamp to set the wavelength of the light. The lamp can include ultraviolet germicidal radiation (UVGI) to kill microorganisms in water or on surfaces. The germicidal radiation can be optimized by a wavelength band of 200 to 280 nanometers (nm) or a wavelength band centered at 405 nanometers. The lamp can be a light emitting diode (LED).

[0054] The lid may include a sensor or other switch to turn one or more light sources on or off. For example, electrical contacts on the water tank 101 and the lid may effectively form a switch. When the lid is removed, the connection between the contacts is interrupted, causing one or more light sources to turn off. Similar feedback systems may be implemented by other types of sensors.

[0055] Figure 6An exemplary atomizing disinfecting device 143 is shown, which is configured to generate a cloud 144 and emit it into the interior of the toilet 101. The cloud 144 can be generated when the water tank 101 is empty. As described above, the controller 100 can receive sensor data indicating an empty water tank and activate the atomizing device 143 in response to the sensor data. The cloud 144 can include hydrogen peroxide H2O2 (steam). Additional, different or fewer components can be included.

[0056] The cloud 144 may include a disinfectant. The cloud 144 may fill the space inside the water tank 101, reaching each of the inner surfaces of the water tank 101. The cloud 144 may move naturally or forcibly to fill the space in one or more channels communicating with the water tank 101. The channels may include at least one channel extending to the edge of the toilet bowl and / or at least one channel extending to the sump of the toilet bowl.

[0057] In some examples, the cloud 144 can be ejected above the water level when the tank is full or partially full of water. When the flush cycle begins, water is pulled into the passage leading to the toilet bowl by gravity, and the negative air pressure created by the water pulls the cloud 144 into the passage leading to the toilet bowl. In this way, the cloud 144 contacts both the inner wall of the tank 101 and the inner wall of the passage extending to the bottom basin.

[0058] Figure 7 An exemplary atomizing disinfection device with increased air flow is illustrated. For example, a fan 145 may be mounted inside the water tank 101. The fan 145 is configured to increase the mass flow of the aerosol generated by the atomizing device 143 to the inside of the water tank 101, through the channel to the bottom basin, and into the bottom basin.

[0059] The fan 145 may be controlled by the controller 100. The controller 100 may send instructions or commands to the fan 145 to operate during the flush cycle. For example, when the controller 100 has instructed the flush valve 121 to open, the controller 100 may operate the fan 145 to help expand the cloud 144. In another example, when the sensor data indicates that the water has been completely drained from the water tank 101, the controller 100 may instruct the fan 145 to operate. In some examples, the controller 100 may activate the fan 145 within a predetermined delay after the misting device 143 (or other disinfection system) is activated.

[0060] Figure 8 An exemplary ultrasonic disinfection device 147 is illustrated installed in a toilet tank 101. The ultrasonic disinfection device 147 may include a transducer configured to emit ultrasonic waves into the tank 101. Ultrasonic waves are mechanical vibrations that impact the inner surface of the tank 101 and vibrate or otherwise break apart particles (e.g., biofilms and other microorganisms).

[0061] When there is some water in the water tank 101 or on the surface of the water tank 101, the ultrasonic waves from the ultrasonic disinfection device 147 can cause the bubbles in the water to implode and collapse (e.g., cavitation) on the surface of the water tank 101. The implosion can produce a scrubbing action, removing particles (e.g., biofilm and other microorganisms) from the surface of the water tank 101.

[0062] The ultrasonic disinfection device 147 may be operated underwater or in a substantially empty tank.

[0063] The controller 100 may send instructions or commands to the ultrasonic disinfection device 147 to operate during the flush cycle. For example, when the controller 100 has instructed the flush valve 121 to open, the controller 100 may operate the ultrasonic disinfection device 147. In another example, when the sensor data indicates that the water has been completely drained from the water tank 101, the controller 100 may instruct the ultrasonic disinfection device 147 to operate. The controller 100 may instruct the ultrasonic disinfection device 147 to operate regardless of whether the water tank substantially contains water or is substantially empty.

[0064] Fig. 9 An exemplary flow chart for disinfecting a substantially empty water tank is illustrated. Additional, different, or fewer actions may be included.

[0065] In action S101, the controller 100 receives an indication of an empty toilet tank. The indication of an empty toilet tank may include sensor data, timing data, or a flush cycle trigger. The sensor data may be received from a water sensor or float in the tank. The timing data may be received from a timer (e.g., integrated with the controller) indicating a predetermined time since an event (e.g., the start of a flush cycle). The flush cycle trigger may be a user input (e.g., a lever actuation, a button press, or a remote control signal) or a command to open the flush valve 121.

[0066] In action S103, the controller generates a disinfection command for the disinfection system 102 in the empty toilet tank. The disinfection command may initiate operation of any device described herein, including a sprayer, a chemical dispenser, an ozone generator, an electrolyzer, or an ultrasonic transmitter.

[0067] In action S105, material is provided from the disinfection system 102 to the inner surface of the empty toilet tank 101 or to a disinfection channel fluidly coupled to the empty toilet tank. The disinfection channel may extend from the tank to one or more rim holes of the toilet bowl. The disinfection channel may extend from the tank to one or more sump ejectors of the toilet bowl.

[0068] Fig.10An exemplary chemical dispensing device 151 is illustrated. One or more compounds may be mixed with water from fill valve 123 via chemical dispensing device 151 and then dispensed directly into the tank and / or flush valve 121 via one or more passages connected to the basin.

[0069] The chemical dispensing device 151 can dispense hydrogen peroxide (H2O2), chlorine and peracetic acid (PAA), polyphosphates (such as sodium hexametaphosphate (SHMP), tetrapotassium pyrophosphate (TKPP), etc.), low pH acids (such as hydrogen chloride (HCL), dihydrogen phosphate (H2PO4), trisodium phosphate (TSP), ethylenediaminetetraacetic acid (EDTA) and its compounds, citric acid, acetic acid, and other acids and / or complexing agents. Other examples of chemicals / compounds that can be used in the present application system include (but are not limited to) didecyldimethylammonium chloride (DDAC), sodium hypochlorite (NaOCl) (such as bleach), PAA, triclosan, formic acid, TSP and its compounds, and other disinfectants (such as quaternary ammonium disinfectants) and antimicrobial agents. These chemicals / compounds can be most beneficial, for example, to prevent and / or remove biofilm. It is worth noting that other chemicals / compounds can also be used in the systems and methods disclosed in the present application, and any such chemicals / compounds disclosed can also be used in any system and / or method disclosed.

[0070] Fig.11 An exemplary electrolytic water dispensing device 153 is illustrated. The electrolytic water dispensing device 153 is configured to electrolyze the tank water to generate hypochlorous acid using the electrical charge and residual salt in the water. The electrolysis process can produce HOCl, O3, and / or H2O2. In some examples, additional salt (i.e., salt that is not residual in the water) can be added to the tank water. Other byproducts (e.g., hydrogen) can be discharged from the water tank 101.

[0071] The electrolytic water dispensing device 153 may include two plates (e.g., a cathode plate and an anode plate). Each plate may be formed of a metal or conductive material. Each plate may be electrically connected to a power source directly or through the controller 100. The anode may be disposable. That is, the user may remove and reinstall the anode at intervals or as needed. Vinegar or peracetic acid may be added to the water as a reactant.

[0072] The controller 100 may send a command to the electrolytic water dispensing device 153. The controller 100 may provide current (e.g., increase the current) to the electrolytic water dispensing device 153 to increase the concentration of hypochlorous acid in the water. The controller 100 may reduce the current flowing to the electrolytic water dispensing device 153 to reduce the concentration of hypochlorous acid in the water.

[0073] The feedback sensor can detect the pH value (e.g., acidic or alkaline properties) in the water. For example, a predetermined pH value (e.g., 5.5 or 6.0) can indicate that the solution has a strong cleaning ability. A neutral pH value (e.g., 7.0) can indicate that the concentrations of hypochlorous acid and hypochlorite ions are equal. The controller 100 can compare the pH value with a threshold level. When the detected pH value is greater than the threshold, the current increases to increase the amount of hypochlorous acid. When the detected pH value is less than the threshold, the current decreases to reduce the amount of hypochlorous acid.

[0074] When the flush valve 121 is opened, electrolyzed water is distributed into the passage and toilet bowl.

[0075] Fig.12 An exemplary ozone dispensing device 155 is illustrated. Ozone can be formed by an ozone generator using a variety of techniques, including corona discharge, ultraviolet light, cold plasma, and other techniques. For example, a corona charger can be configured to accumulate a charge from a power source and apply the charge to air from an air source. In corona discharge, a corona discharge tube or an ozone plate is used. In another technique, electrolytic ozone produces ozone by decomposing water molecules. Such an ozone generator 110 includes a water electrolysis device that decomposes water molecules into H2, O2, and O3. Hydrogen H2 can be removed, leaving oxygen and ozone as the only products of the reaction. Electrolytic ozone generation can produce ozone with a higher concentration (20-30%) than corona discharge technology. Electrolysis technology can also avoid nitrogen.

[0076] The controller 100 can send commands to the ozone generator. For example, the command can start the generation of ozone. These commands can be triggered by a schedule (e.g., every predetermined period of time or at a specific time of day). The command can be triggered by a flush cycle. That is, when the water tank is full, the controller 100 can send a command to the ozone generator 110 to generate ozone.

[0077] The controller 100 may send a command to the ozone generator to generate ozone in response to user input. For example, the flush cycle may be initiated by operation of an actuator. The actuator may be a button configured to initiate a flush cycle when pressed (or pulled) a predetermined distance or touch; it may also be a lever configured to activate when rotated a predetermined angular stroke; or it may be any suitable device configured to activate based on user input operation. In some embodiments, the actuator may be a sensor (e.g., a proximity sensor), and the flush cycle may be automatically initiated (e.g., initiated by the controller) based on sensor data received from the sensor.

[0078] Fig.13An exemplary bacteria dispensing device 157 is illustrated. The bacteria dispensing device 157 can be loaded with live beneficial bacteria by the user. The bacteria can be dispensed from the bacteria dispensing device 157 into the tank water. The beneficial bacteria create a positive environment in which they engulf or otherwise destroy harmful bacteria. The beneficial bacteria then compete with the harmful bacteria for food and resources, thereby preventing the growth of harmful bacteria. After each flush, a certain residual amount of bacteria will remain in the tank 101.

[0079] Fig.14 An exemplary lamp 161 and catalyst 163 device is shown. Catalyst 163 may include an object having a channel through which water can pass. Fig.14 As shown, catalyst 163 may have a tubular shape. Other shapes may include a plate or disc. Catalyst 163 may have a coating or otherwise be treated with a substance (e.g., a catalyst material) that is activated by lamp 161. The activated catalyst material generates hydroxyl radicals with water to disinfect the water.

[0080] The catalyst material may include titanium oxide (TiO2). Lamp 161 may emit ultraviolet light having a predetermined wavelength. For example, lamp 161 may be a UV-C lamp that produces light having a wavelength of 254 nanometers. The UV-C lamp may produce light having a wavelength of 240 to 315 nanometers. As described herein, other wavelengths of ultraviolet light (e.g., a 185 nanometer wavelength) may be used to disinfect water tank 101.

[0081] The lamp 161 may also be coated with a catalyst material. The lamp 161 may include one or more LEDs. The LEDs may be powered by a DC power source, a battery, or a generator. The generator may operate based on the water supply from the water injection valve 123 to rotate the turbine, thereby turning the generator to generate electricity.

[0082] Exemplary UV photocatalysts include titanium dioxide (TiO2), zinc oxide (ZnO), tin oxide (SnO2), tungsten oxide (WO3), cadmium sulfide (CdS), ZnS, CdSe, WS2, MoS2, etc. The catalyst may include at least one phosphate bead.

[0083] In addition, the heat from the lamp 161 can cause natural convection in the water in the water tank. The water heated near the lamp 161 will flow upward. Other cooler water will take its place near the lamp 161. This process causes the water to circulate repeatedly in the water tank 101.

[0084] Another circulation device may include a power device that circulates water in the water tank 101. The power device may be a motor. Examples of the circulation device may include an impeller, a stirrer, or a pump.

[0085] The lamp 161 and catalyst 163 devices can be used for any type of water container. Exemplary devices for suitable water containers include whirlpool beams, garbage disposals, self-cleaning water filters, wastewater heat recovery systems, holding / sedimentation / storage tanks for grey water or rainwater systems, commercial hand sanitizers, shower systems, recirculating showers, aerosol disinfection systems (e.g., in lamps).

[0086] Fig.15 An exemplary controller for any of the disinfection systems is shown. The controller 400 may include a processor 300, a memory 352, and a communication interface 353 for interacting with a device or the Internet and / or other network 346. In addition to the communication interface 353, a sensor interface may also be configured to receive data from sensors described herein or from any source for detecting the presence of water, detecting the presence or intensity of disinfectants, detecting the actuation of a flush cycle, detecting the presence of a user or gesture, and the devices described herein. The components of the control system 400 may communicate using a bus 348. The control system 400 may be connected to a workstation or other external device (such as a control panel) and / or a database for receiving user input, system characteristics, and any values ​​described herein.

[0087] Optionally, the control system 400 may include an input device 355 and / or sensing circuitry in communication with any sensor. The sensing circuitry receives the sensor measurements from the above. The input device 355 communicator may include a switch (e.g., an actuator) and / or a touch screen, keyboard, remote control, microphone for voice input, camera for gesture input, and / or other mechanism coupled to or integrated with the input device.

[0088] Optionally, the control system 400 may include a drive unit 340 for receiving and reading a non-transitory computer medium 341 having instructions 342. Additional, different, or fewer components may be included. The processor 300 is configured to execute instructions 342 stored in a memory 352 for executing the algorithms described herein. The display 350 may be supported by any of the components described herein. The display 350 may be combined with a user input device 355.

[0089] The processor 300 may be a general-purpose processor or a special-purpose processor, an application-specific integrated circuit (ASIC), one or more programmable logic controllers (PLC), one or more field programmable gate arrays (FPGA), a group of processing components, or other suitable processing components. The processor 300 is configured to execute computer code or instructions stored in the memory 352 or received from other computer-readable media (e.g., embedded flash memory, local hard disk memory, local ROM, network memory, remote server, etc.). The processor 300 may be a single device or a combination of devices, such as associated with a network, distributed processing, or cloud computing.

[0090] The memory 352 may include one or more devices (e.g., memory units, memory devices, storage devices, etc.) for storing data and / or computer code for completing and / or facilitating the various methods described in the present disclosure. The memory 352 may include random access memory (RAM), read-only memory (ROM), hard disk storage, temporary storage, non-volatile memory, flash memory, optical storage, or any other suitable storage for storing software objects and / or computer instructions. The memory 352 may include a database component, an object code component, a script component, or any other type of information structure for supporting the various activities and information structures described in the present disclosure. The memory 352 may be communicatively connected to the processor 300 via a processing circuit and may include computer code for executing (e.g., by the processor 300) one or more methods described herein. For example, the memory 298 may include graphics, web pages, HTML files, XML files, script code, spray configuration files, or other resources for generating a graphical user interface for display and / or for interpreting user interface input to generate commands, controls, or communication decisions.

[0091] In addition to including an inlet port and an outlet port, the communication interface 353 may also include any operable connection. An operable connection may be a connection in which signals, physical communications, and / or logical communications may be sent and / or received. An operable connection may include a physical interface, an electrical interface, and / or a data interface. The communication interface 353 may be connected to a network. The network may include a wired network (e.g., Ethernet), a wireless network, or a combination thereof. The wireless network may be a cellular telephone network, an 802.11, 802.16, 802.20, or WiMax network, a Bluetooth pairing of a device, or a Bluetooth mesh network. In addition, the network may be a public network (e.g., the Internet), a private network (e.g., an intranet), or a combination thereof, and may utilize various network protocols that are now available or developed later, including but not limited to a network protocol based on TCP / IP.

[0092] Although the computer-readable medium (e.g., memory 352) is shown as a single medium, the term "computer-readable medium" includes a single medium or multiple media, such as a centralized database or a distributed database, and / or associated caches and servers storing one or more sets of instructions. The term "computer-readable medium" should also include any medium that can store, encode, or carry a set of instructions for execution by a processor, or cause a computer system to perform any one or more of the methods or operations disclosed herein.

[0093] In a specific non-limiting, exemplary embodiment, the computer-readable medium may include a solid-state memory, such as a memory card or other package that houses one or more non-volatile read-only memories. In addition, the computer-readable medium may be a random access memory or other volatile rewritable memory. In addition, the computer-readable medium may include a magneto-optical or optical medium, such as a disk or tape or other storage device to capture carrier signals, such as signals communicated through a transmission medium. A digital file attachment to an email or other self-contained information archive or archive collection may be considered a distribution medium of a tangible storage medium. Therefore, the present disclosure is considered to include any one or more of a computer-readable medium or distribution medium and other equivalents and subsequent media in which data or instructions may be stored. The computer-readable medium may be non-temporary, which includes all tangible computer-readable media.

[0094] In another embodiment, a dedicated hardware implementation, such as an application specific integrated circuit, a programmable logic array, and other hardware devices, may be constructed to implement one or more of the methods described herein. Applications that may include the devices and systems of various embodiments may broadly include various electronic systems and computer systems. One or more embodiments described herein may implement functions using two or more specific interconnected hardware modules or devices having associated control signals and data signals that may communicate between and through the modules, or as part of a specific application integrated circuit. Therefore, the present system encompasses software, firmware, and hardware implementations.

[0095] The drawings of the embodiments described herein are intended to provide a general understanding of the structures of the various embodiments. These drawings are not intended to be used as a complete description of all elements and features of the devices and systems utilizing the structures or methods described herein. Many other embodiments are apparent to those skilled in the art who review the present disclosure. Other embodiments may be utilized and derived according to the present disclosure, thereby making structural and logical substitutions and changes without departing from the scope of the present disclosure. In addition, the drawings are merely representative and may not be drawn to scale. Certain proportions in the drawings may be exaggerated, while other proportions may be minimized. Therefore, the present disclosure and the drawings should be considered illustrative, rather than restrictive.

[0096] Although this specification contains many specific contents, these contents should not be understood as limitations on the scope of the invention or the scope of the content that may be claimed, but should be understood as descriptions of specific features of specific embodiments of the invention. Certain features described in separate embodiments in this specification may also be implemented in combination in a single embodiment. Conversely, the various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments. In addition, although the above-mentioned features may be described as working in certain combinations, or even initially required, in some cases, one or more features may be removed from the required combination, and the required combination may be for a sub-combination or a variation of a sub-combination.

[0097] One or more embodiments of the present disclosure may be referred to herein, individually and / or collectively, by the term "invention", which is merely for convenience and is not intended to voluntarily limit the scope of the present application to any particular invention or inventive concept. In addition, although specific embodiments have been illustrated and described herein, it should be understood that any subsequent arrangements intended to achieve the same or similar purposes may replace the specific embodiments shown. This disclosure is intended to cover any and all subsequent adjustments or variations of the various embodiments. Combinations of the above-described embodiments, as well as other embodiments not specifically described herein, will be apparent to those skilled in the art upon reading the specification.

[0098] It is intended that the above detailed description be regarded as illustrative rather than restrictive, and that the following claims including all equivalents are intended to define the scope of the invention. The claims should not be understood to be limited to the described order or elements unless so stated. Therefore, all embodiments within the scope and spirit of the following claims and their equivalents are claimed as the present invention.

Claims

1. A disinfection system for a toilet, the disinfection system comprising: Toilet tank; A drain outlet, the drain outlet being located at the bottom of the toilet tank; at least one disinfection passage extending from the drain of the toilet tank to a base for the toilet; and A valve system in the toilet tank is configured to empty the toilet tank below a predetermined level through the drain opening.

2. The disinfection system of claim 1, wherein the valve system comprises a flush valve and the predetermined level is below the flush valve.

3. The disinfection system according to claim 2, wherein the valve system further comprises: A float, wherein the float is configured to maintain the float in an open state until the water in the tank is below the predetermined level. The disinfection system of claim 3 , wherein the float is coupled to the flush valve.

5. The disinfection system of claim 3, wherein the float is electrically connected to a controller that controls the flush valve.

6. The disinfection system of claim 1, wherein the valve system comprises a drain valve.

7. The disinfection system of claim 1, wherein the predetermined level is less than 5 mm from the drain opening of the toilet tank.

8. The disinfection system according to claim 1, further comprising: A disinfecting dispenser in the toilet tank, the disinfecting dispenser being configured to dispense disinfecting material into the toilet tank and the at least one disinfecting passage extending from the drain of the toilet tank into the base for the toilet.

9. The sterilization system of claim 8, wherein the sterilization material is steam.

10. The disinfection system according to claim 8, further comprising: A fan is configured to increase the mass flow of the disinfecting material through the toilet tank.

11. The disinfection system of claim 1, wherein the toilet tank includes a bottom surface including at least one inclined surface adjacent the drain opening.

12. The disinfection system according to claim 1, further comprising: A light fixture is coupled to the inner side of the water tank and is configured to illuminate the water tank.

13. The disinfection system of claim 1, wherein the interior of the toilet tank is glazed.

14. A disinfection system for a toilet, the disinfection system comprising: Toilet tank; A drain outlet, the drain outlet being located at the bottom of the toilet tank; at least one disinfection passage extending from the drain of the toilet tank to a base for the toilet; as well as A disinfecting material generator is coupled to the toilet tank.

15. The disinfection system of claim 14, wherein the disinfection material generator comprises an electrolyzed water generator.

16. The disinfection system according to claim 14, further comprising: sensor; as well as A controller is configured to activate the sterilizing material generator in response to data received from the sensor.

17. The disinfection system of claim 14, wherein the disinfection material generator comprises a bacteria dispenser.

18. The disinfection system of claim 14, wherein the disinfection material generator comprises: catalyst; as well as An ultraviolet lamp is configured to activate the catalyst and circulate the water by convection.

19. A method for disinfecting a toilet, the method comprising: receiving indication of empty toilet tank; generating a disinfection command for a disinfection system in the empty toilet tank; as well as Material is provided from the disinfection system to an interior surface of the empty toilet tank or to a disinfection passage fluidly coupled to the empty toilet tank.

20. The method of claim 19, wherein the indication of an empty toilet tank comprises sensor data, timing data, or a flush cycle trigger.

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