Intelligent toilet and flushing method

Abstract

The application discloses a kind of intelligent toilet, including toilet main body, foaming device and flushing device;The toilet main body is equipped with toilet cavity and water tank, and the flushing device includes water and flushing nozzle, the water includes water inlet and water outlet, the water inlet is connected with water tank by first water pipe, the water outlet is connected with flushing nozzle by second water pipe, the foaming device is connected with water and flushing nozzle by third water pipe, wherein, third water pipe is communicated with second water pipe, and flushing nozzle sprays water and foam into toilet cavity in turn.Correspondingly, the application also provides a kind of flushing method of intelligent toilet.The pipe connection mode of the application is simple, and only one nozzle is needed to complete the functions of flushing and foaming, which is simple in structure and convenient and effective.

Description

[0001] This application is a divisional application of Chinese Patent Application No. 201810793909.5, filed on July 19, 2018, entitled "An Intelligent Toilet and Flushing Method", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of bathroom technology, and more particularly to a smart toilet and a flushing method. Background Technology

[0003] Flush toilets, with their advantages of comfort and aesthetics, are widely used in bathrooms of homes, hotels, and office buildings. Intelligent toilets now offer many functions such as warm water washing, warm air drying, and heated seats. However, the odor produced during defecation is difficult to remove, causing inconvenience for users. Foam sealing technology for water conservation in public restrooms is a relatively recent development, but several major problems urgently need improvement in practical use: the foam in the toilet bowl is difficult to control and unsightly; the foaming device is easily clogged, affecting normal foaming, resulting in high maintenance costs and impacting the overall operation of the device; and the complex and costly foaming device hinders widespread adoption.

[0004] Chinese patent CN106894483A discloses a foam generator, a toilet, and a method for generating foam.

[0005] The foam generator includes: an air inlet assembly, a connecting pipe, an aeration pipe, and a control device; one end of the connecting pipe is connected to the air inlet assembly, and the other end is connected to the aeration pipe, and the aeration pipe is disposed inside a foaming box, which has a foam outlet; the control device is electrically connected to the air inlet assembly.

[0006] A toilet includes a toilet seat, a water tank, and a foam generator. The foam generator is mounted on the toilet seat, the water tank is positioned above the foam generator, and a foaming agent tank is located inside the water tank. The foaming agent tank is connected to the foam generator via a water pipe. The toilet seat also includes a toilet lid, a toilet cavity, and a toilet seat ring. The toilet lid is located at the top of the toilet seat. The toilet cavity has multiple spray water outlets located at the top edge of the toilet cavity. The foam outlet communicates with the spray water outlets. The bottom of the toilet seat has a drain outlet. The toilet seat also has a water inlet and a spray channel. The water inlet connects the water tank to the beginning of the spray channel, allowing water to be sprayed towards the drain outlet through the spray channel.

[0007] A foam generation method includes the following steps: S001: When the air intake component receives a command from the control device, the air intake component starts and generates airflow. The airflow enters the connecting pipe and then enters the aeration pipe to generate foam in the foaming box. The foam is discharged from the foam outlet and flows into the toilet cavity from the spray water outlet located inside the toilet cavity, forming an insulating splash-proof layer inside the toilet cavity; S002: When the third control valve receives a command from the control device, the third control valve opens and sprays water into the toilet cavity; wherein the air intake component and the third control valve open and close simultaneously or separately; S003: When the foam liquid volume reaches the minimum position, the control device issues a command to open the first control valve and the second control valve, adding foaming agent and water into the foaming box respectively to form foam liquid. When the foam liquid volume reaches the maximum position, the control device issues a command to close the second control valve and the third control valve.

[0008] The foam generator in the aforementioned patent is inconvenient to produce foam, requiring a separate foam outlet spray water outlet, which increases the toilet manufacturing process. In addition, the foam agent tank is directly connected to the foaming box via a water pipe, and the foam agent tank needs to be placed above the foaming box, which limits the toilet space.

[0009] Secondly, the aforementioned toilet body requires multiple water outlets, increasing the manufacturing steps and reducing the yield rate of the finished toilet body.

[0010] Secondly, the aforementioned foaming tank is connected to the water tank via a water pipe. A control valve needs to be installed on the water pipe to control the water inflow to the foaming tank. This control valve needs to be connected to a controller, which in turn controls the water inflow. This can easily lead to excessive water entering the foaming tank, affecting the foaming effect, and water can also easily overflow from the foaming tank, damaging the equipment. Furthermore, the foaming agent tank is directly connected to the foaming tank via a water pipe, and the foaming agent tank needs to be positioned above the foaming tank, limiting the space available in the toilet bowl.

[0011] In addition, the aforementioned toilet's foaming device and flushing device are two separate devices, which consume a large amount of water and occupy a lot of space. Summary of the Invention

[0012] The technical problem to be solved by the present invention is to provide an intelligent toilet in which the flushing device and the foaming device are effectively connected, and only one nozzle is needed to complete the functions of flushing and foaming. The structure is simple, convenient and effective.

[0013] The technical problem to be solved by the present invention is to provide a flushing method for a smart toilet, which effectively connects the flushing device and the foaming device, and the flushing method is simple and the flushing effect is good.

[0014] To address the aforementioned technical problems, this invention provides an intelligent toilet, comprising: a toilet body, a foaming device, and a flushing device; the toilet body has a toilet cavity and a water tank, the flushing device includes a water fitting and a flushing nozzle, the water fitting includes an inlet and an outlet, the inlet is connected to the water tank via a first water pipe, the outlet is connected to the flushing nozzle via a second water pipe, and the foaming device is connected to the water fitting and the flushing nozzle via a third water pipe, wherein the third water pipe is connected to the second water pipe, water in the water tank enters the water fitting through the first water pipe, the water fitting passes water into the foaming device and the flushing nozzle through the second and third water pipes, the foaming device passes foam into the flushing nozzle through the third and second water pipes, and the flushing nozzle sequentially sprays water and foam into the toilet cavity.

[0015] As an improvement to the above solution, the foaming device includes: a foam shield water tank, a foam shield box, an air inlet component, a liquid inlet component, and a foaming component; the foam shield water tank has a receiving cavity, the foam shield box and the foaming component are disposed in the receiving cavity, and the foam shield box and the foam shield water tank form a sealed connection; the air inlet component and the liquid inlet component are disposed in the foam shield box; the air inlet component is connected to the foaming component through a pipe and introduces gas into the foaming component; the liquid inlet component is connected to the receiving cavity through a pipe and introduces foaming liquid into the receiving cavity; a third water pipe is connected to the receiving cavity and introduces water into the receiving cavity; the foaming component foams within the receiving cavity.

[0016] As an improvement to the above solution, the foaming device further includes an exhaust assembly, which is installed on the foam shield box and is used to exhaust the air in the accommodating cavity, allowing water to enter the accommodating cavity from the third water pipe.

[0017] As an improvement to the above solution, the exhaust assembly includes an exhaust valve and an exhaust pipe connected to the exhaust valve. The exhaust pipe is connected to the accommodating cavity. The exhaust valve discharges air from the accommodating cavity through the exhaust pipe, so that the accommodating cavity is in a negative pressure state, allowing water to automatically enter the accommodating cavity from the third water pipe.

[0018] As an improvement to the above solution, the foaming device further includes a detector and a controller. The detector is disposed in the accommodating cavity and is used to detect the amount of water in the accommodating cavity. The detector, the exhaust assembly, the liquid inlet assembly, and the air inlet assembly are electrically connected to the controller.

[0019] As an improvement to the above solution, the foaming component includes a foaming stone and a fixing bracket for fixing the foaming stone to the bottom of the foam shield box, and the air intake component introduces gas into the foaming stone through a pipe.

[0020] As an improvement to the above solution, the air intake assembly includes an air pump and an air pump protective sleeve, the air pump protective sleeve being fitted onto the air pump and fixing the air pump inside the foam shield box; the liquid intake assembly includes a liquid pump and a liquid pump protective sleeve, the liquid pump protective sleeve being fitted onto the liquid pump and fixing the liquid pump inside the foam shield box.

[0021] As an improvement to the above solution, the edge of the foam shield water tank is provided with a groove, and a sealing ring is provided in the groove. The edge of the foam shield box is snapped onto the edge of the foam shield water tank, and the foam shield box and the foam shield water tank are tightly connected by the sealing ring, so that the accommodating cavity is in a sealed state.

[0022] As an improvement to the above solution, a water spray nozzle is provided on the toilet body, the water spray nozzle is located on the top edge of the toilet cavity, and the flushing nozzle is set inside the water spray nozzle.

[0023] Accordingly, the present invention also provides a flushing method for a smart toilet, comprising the following steps:

[0024] S101. Start flushing. Water in the tank enters the water fitting through the first water pipe. The water fitting then passes water through the second water pipe into the foaming device and the flushing nozzle. The flushing nozzle then flushes the toilet bowl.

[0025] S102. Start foaming. The controller issues a command to start the air intake component. The air intake component introduces gas into the foaming component. The foaming component generates foam in the accommodating cavity. The foam enters the flushing nozzle from the third water pipe and the second water pipe in sequence. The flushing nozzle sprays the foam into the toilet cavity, forming an isolation and splash-proof layer in the toilet cavity.

[0026] S103. When the water level in the container reaches the lowest level, the controller issues a command to start the venting component and the liquid inlet component. The venting component discharges the gas in the container, making the container under negative pressure. Water automatically enters the container from the third water pipe. The liquid inlet component adds foaming liquid to the container. When the water level in the container is higher than the highest level, the controller issues a command to shut down the venting component and the liquid inlet component.

[0027] Implementing this invention has the following beneficial effects:

[0028] 1. This invention provides an intelligent toilet, comprising: a toilet body, a foaming device, and a flushing device; the toilet body has a toilet cavity and a water tank, the flushing device includes a water fitting and a flushing nozzle, the water fitting includes an inlet and an outlet, the inlet is connected to the water tank via a first water pipe, the outlet is connected to the flushing nozzle via a second water pipe, and the foaming device is connected to the water fitting and the flushing nozzle via a third water pipe, wherein the third water pipe is connected to the second water pipe, water in the water tank enters the water fitting through the first water pipe, the water fitting passes water into the foaming device and the flushing nozzle through the second and third water pipes, the foaming device passes foam into the flushing nozzle through the third and second water pipes, and the flushing nozzle sequentially sprays water and foam into the toilet cavity. This invention's intelligent toilet has a simple piping connection method, few accessories, easy installation, and occupies little space. Furthermore, this invention only requires one nozzle to complete the functions of flushing and foam removal, with a simple structure, convenience, and effectiveness.

[0029] 2. This invention provides an intelligent toilet, wherein the foaming device includes: a foam shield tank, a foam shield box, an air inlet component, a liquid inlet component, and a foaming component. The foam shield tank has a receiving cavity, and the foam shield box and the foaming component are disposed within the receiving cavity, with the foam shield box and the foam shield tank forming a sealed connection. The air inlet component and the liquid inlet component are disposed within the foam shield box. The air inlet component is connected to the foaming component through a pipe and introduces gas into the foaming component. The liquid inlet component is connected to the receiving cavity through a pipe and introduces foaming liquid into the receiving cavity. A third water pipe is connected to the receiving cavity and introduces water into the receiving cavity. The foaming component foams within the receiving cavity. The foaming device of this invention can fully utilize the foaming liquid, generate a large amount of foam, reduce costs, increase usage frequency, and quickly achieve a foaming effect when needed by the user. It is more convenient and faster to use. This invention is based on the principle of water and air, utilizing air to generate a large amount of foam, making full use of the foaming liquid and water, and also achieving the effect of saving water and reusing the foaming liquid multiple times. The foaming liquid can be dish soap.

[0030] 3. This invention provides an intelligent toilet. The foaming device further includes a detector and a controller. The detector is disposed within the receiving cavity and is used to detect the water volume within the cavity. The detector, venting assembly, liquid inlet assembly, and air inlet assembly are electrically connected to the controller. This invention replenishes water based on the principle of negative pressure, thus preventing excessive water from entering the receiving cavity and affecting the foaming effect, and also preventing water from overflowing from the receiving cavity and damaging the device. Furthermore, the water tank of this invention does not need to be located above the foaming device, effectively utilizing the toilet's space.

[0031] Furthermore, the third water pipe connected to the receiving cavity can not only add water to the receiving cavity, but also introduce the foam in the receiving cavity into the flushing nozzle, and spray it into the toilet cavity through the flushing nozzle to achieve circulation.

[0032] 4. The present invention provides a flushing method for an intelligent toilet, which first flushes the toilet chamber with water, and then fills the toilet chamber with foam. The foam is used to isolate odors, prevent sewage backflow and splashing, and prevent the growth of viruses. It also achieves a cleaner flushing effect. The controller can control the foam to enter the toilet chamber in advance, which plays a lubricating role. When excrement falls into the toilet chamber, it naturally has a slippery effect. During flushing, it makes the flushing more thorough. At the same time, it also achieves multiple benefits such as saving water and maintaining hygiene, providing users with a healthy and comfortable living experience. Attached Figure Description

[0033] Figure 1 This is an exploded view of the smart toilet of the present invention;

[0034] Figure 2 This is a structural schematic diagram of the smart toilet of the present invention;

[0035] Figure 3 This is a schematic diagram of the foaming device of the present invention;

[0036] Figure 4 This is a cross-sectional view of the foaming device of the present invention. Figure 1 ;

[0037] Figure 5 This is a cross-sectional view of the foaming device of the present invention. Figure 2 ;

[0038] Figure 6 This is a cross-sectional view of the foaming device of the present invention. Figure 3 ;

[0039] Figure 7 This is an assembly diagram of the foaming device of the present invention. Implementation

[0040] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0041] See Figure 1 and Figure 2The present invention provides a smart toilet, comprising: a toilet body 1, a foaming device 2, and a flushing device; the toilet body 1 is provided with a toilet cavity 11 and a water tank 12, the flushing device includes a water component 31 and a flushing nozzle 32, the water component 31 includes a water inlet 311 and a water outlet 312, the water inlet 311 is connected to the water tank 12 through a first water pipe 41, and the water outlet 312 is connected to the flushing nozzle 32 through a second water pipe 42, the foaming device 2... The third water pipe 43 is connected to the water fitting 31 and the flushing nozzle 32. The third water pipe 43 is connected to the second water pipe 42. Water in the water tank 12 enters the water fitting 31 through the first water pipe 41. The water fitting 31 passes water into the foaming device 2 and the flushing nozzle 32 through the second water pipe 42 and the third water pipe 43. The foaming device 2 passes foam into the flushing nozzle 32 through the third water pipe 43 and the second water pipe 42. The flushing nozzle 32 sprays water and foam into the toilet cavity 11 in sequence.

[0042] The toilet body 1 has a water spray nozzle located on the top edge of the toilet cavity 11. The flushing nozzle 32 is installed inside the nozzle by fasteners such as nuts and washers. The water and foam sprayed from the flushing nozzle 32 cleans the toilet cavity 11 by circling the top edge, resulting in a good cleaning effect. Furthermore, the toilet body 1 of this invention only requires one water spray nozzle. Compared with existing toilets with two or more spray nozzles, the manufacturing process of the toilet body 1 of this invention is simpler, the product yield is higher, and it is more aesthetically pleasing.

[0043] The first water pipe 41 of the present invention is a braided pipe, and each end of the first water pipe 41 is provided with a connector. One of the connectors is spirally connected to the water inlet 311 of the water fitting 31 to form a connection between the first water pipe 41 and the water fitting 31. In addition, the toilet body 1 is also provided with an installation hole communicating with the water tank 12. The water inlet connector 13 is inserted into the installation hole, with one end of the water inlet connector 13 extending into the water tank 12 and fixed by a nut. The other end of the water inlet connector 13 remains outside the water tank 12 and is connected to the first water pipe 41.

[0044] Furthermore, the third water pipe 43 of the present invention is connected to the second water pipe 42 via a T-joint connector. Specifically, the second water pipe 42 includes a water fitting section 421 and a nozzle section 422. The water fitting section 421 is connected to the water fitting 31 and the T-joint connector, and the nozzle section 422 is connected to the rinsing nozzle 32 and the T-joint connector. Water in the water tank 12 enters the water fitting 31 through the first water pipe 41. The water fitting 31 then passes water through the water fitting section 421 of the second water pipe 42 into the third water pipe 43 and the nozzle section 422 of the second water pipe 42. When the water fitting 31 passes water from the water tank 12 into the rinsing nozzle 32 through the second water pipe 42, water in the second water pipe 42 also enters the foaming device 2 through the third water pipe 43 because the third water pipe 43 is connected to the second water pipe 42. After the water flushing is complete, the foam in the foam device 2 enters the second water pipe 42 through the third water pipe 43, and is then directed through the nozzle section 422 of the second water pipe 42 into the flushing nozzle 32. The flushing nozzle 32 then sprays the foam into the toilet bowl cavity 11, thus completing the flushing and foam removal process. This invention's smart toilet features a simple piping connection, few accessories, easy installation, and minimal space occupation.

[0045] To prevent the third water pipe 43 from introducing foam into the water fitting 31, the length of the water fitting section 421 of the second water pipe 42 is greater than the length of the nozzle section 422. Furthermore, the water fitting section 421 is bent.

[0046] See Figure 3 and Figure 4 The foaming device 2 includes: a foam shield water tank 21, a foam shield box 22, an air inlet assembly 23, a liquid inlet assembly 24, and a foaming assembly 25. The foam shield water tank 21 has a receiving cavity 211. The foam shield box 22 and the foaming assembly 25 are disposed within the receiving cavity 211, and the foam shield box 22 is sealed to the foam shield water tank 21. The air inlet assembly 23 and the liquid inlet assembly 24 are disposed within the foam shield box 2. The air inlet assembly 23 is connected to the foaming assembly 25 via a pipe 26 and introduces gas into the foaming assembly 25. The liquid inlet assembly 24 is connected to the receiving cavity 211 via a pipe 26 and introduces foaming liquid into the receiving cavity 211. A third water pipe 43 is connected to the receiving cavity 211 and introduces water into the receiving cavity 211. The foaming assembly 25 foams within the receiving cavity 211.

[0047] In use, the foaming liquid enters through the liquid inlet assembly 24 and flows into the receiving cavity 211 through the pipe 26. Air enters through the air inlet assembly 23 and flows into the foaming assembly 25 through the pipe 26. When the gas is discharged from the foaming assembly 25, the foaming liquid in the receiving cavity 211 produces foam. The foaming device of this invention can fully utilize the foaming liquid, generate a large amount of foam, reduce costs, and increase the number of uses. It can quickly achieve a foaming effect when needed by the user, and is more convenient and faster to use. This invention is based on the principle of water and air, utilizing air to generate a large amount of foam, making full use of both the foaming liquid and water, and also achieving the effect of saving water and reusing the foaming liquid multiple times. The foaming liquid can be dishwashing liquid.

[0048] The edge of the foam shield box 22 engages with the edge of the foam shield water tank 21, forming a sealed space in the accommodating cavity 211. Preferably, the edge of the foam shield water tank 21 has a groove 212, and a sealing ring 213 is provided within the groove 212. The sealing ring 213 tightly connects the foam shield box 22 and the foam shield water tank 21, keeping the accommodating cavity 211 in a sealed state. Furthermore, both the foam shield water tank 21 and the foam shield box 22 have mounting holes on their edges, allowing for a detachable connection using screws or other fasteners. Additionally, the foam shield water tank 21 and the foam shield box 22 can also be tightly connected by welding or bonding, ensuring that the accommodating cavity 211 remains sealed.

[0049] The air intake assembly 23 includes an air pump 231 and an air pump protective sleeve 232, the air pump protective sleeve 232 being fitted onto the air pump 231 and fixing the air pump 231 inside the foam shield box 22. Alternatively, the air intake assembly 23 can be any other device capable of achieving the air intake effect.

[0050] The liquid inlet assembly 24 includes a liquid pump 241 and a liquid pump protective sleeve 242. The liquid pump protective sleeve 242 is fitted onto the liquid pump 241 and fixes the liquid pump 241 inside the foam shield box 22. The liquid pump 241 is connected to a liquid inlet pipe 243, through which the liquid pump 241 draws the foaming liquid into the receiving cavity 211.

[0051] In addition, pipe 26 can be made of rubber hose, which has the advantage of being lightweight.

[0052] The foaming component 25 includes a foaming stone 251 and a fixing bracket 252 that fixes the foaming stone 251 to the bottom of the foam shield box 22. An air pump 231 introduces gas into the foaming stone 251 through a pipe 26. Because the interior and surface of the foaming stone 251 have many micropores, during use, air enters from the air pump 231 and enters the foaming stone 251 through the pipe 26. When the gas is discharged from the foaming stone 251, the foaming liquid in the accommodating cavity 211 produces foam.

[0053] It should also be noted that the air pump 231, the pipe 26 and the foaming stone 251 can be detached. Detachable connection makes installation and replacement convenient. When one of the components is damaged, only the damaged component needs to be replaced without affecting the use of other components. This helps to save costs and avoid waste of resources.

[0054] The foaming device 2 also includes an exhaust component 27, which is disposed on the foam shield box 22 and is used to exhaust the air in the accommodating cavity 211 so that water can automatically enter the accommodating cavity 211 from the third water pipe 43.

[0055] See Figure 5 The exhaust assembly 27 includes an exhaust valve 271 and an exhaust pipe 272 connected to the exhaust valve 271. The exhaust pipe 272 communicates with the receiving cavity 211. The exhaust valve 271 discharges air from the receiving cavity 211 through the exhaust pipe 272, causing the receiving cavity 211 to be in a negative pressure state, allowing water to automatically enter the receiving cavity 211 from the third water pipe 43. The exhaust valve 271 is provided with an exhaust port, which can discharge gas outside the foaming device 2 through a connecting pipe.

[0056] To prevent the exhaust valve 271 from shifting and to ensure the exhaust effect, preferably, the foam shield box 22 is provided with a slot that matches the exhaust valve, and the exhaust valve 271 is installed in the slot.

[0057] The foaming device 2 also includes a detector 28 and a controller 29. The detector 28 is disposed in the accommodating cavity 211 and is used to detect the water volume in the accommodating cavity 211. The detector 28, air pump 231, liquid pump 241, and exhaust valve 271 are electrically connected to the controller 29. The controller 29 is used to control the amount of foam generated, foam rinsing, and automatic water replenishment. Since the accommodating cavity 211 is in a sealed state, during use, the detector 28 detects the water volume in the accommodating cavity 211. When the water level in the accommodating cavity 211 is lower than a preset value, the controller 29 connected to the detector 28 will activate the exhaust valve 271. The exhaust valve 271 will expel the air from the accommodating cavity 211 through the exhaust pipe 272, so that the accommodating cavity 211 is in a negative pressure state. Water from the third water pipe 43 will automatically enter the accommodating cavity 211, thereby realizing automatic water replenishment. In addition, the controller 29 can also start the liquid pump 421 and the air pump 231. The liquid pump 421 adds foaming liquid to the accommodating cavity 211, and the air pump 231 introduces gas into the foaming stone 251, so that the foaming stone 251 generates foam in the accommodating cavity 211.

[0058] See Figure 6The detector 28 includes a detector body 281 and a connecting section 282 connected to the detector body 281. One end of the connecting section 282 passes through a foam shield box 22 and is electrically connected to a controller 29. The foam shield box 22 has a mounting hole that mates with the connecting section 282. The connecting section 282 passes through a sealing ring, the mounting hole, and a nut in sequence, and is locked in place by the nut, thereby fixing the detector 28 inside the foam shield box 22. It should be noted that the connecting section 282 has threads and includes a conductive wire electrically connected to the detector body 281 and a plastic sleeve wrapped around the conductive wire. The detector 28 of this invention forms an electrical connection with the controller 29 outside the accommodating cavity 211 through the connecting section 282, preventing water and foam inside the accommodating cavity 211 from damaging the controller 29. Furthermore, the accommodating cavity 211 is sealed off by the sealing ring and the nut.

[0059] When the water level in the receiving cavity 211 exceeds a preset value, the controller 29, connected to the detector 28, closes the vent valve 271, stopping the addition of water to the receiving cavity 211. This invention uses the principle of negative pressure for water replenishment, thus preventing excessive water from entering the receiving cavity 211 and affecting the foaming effect, and also preventing water from overflowing from the receiving cavity 211 and damaging the equipment. Furthermore, the water tank 12 of this invention does not need to be positioned above the foaming device 2, effectively utilizing the toilet's space.

[0060] Furthermore, the third water pipe 43, which is connected to the receiving cavity 211, can not only add water to the receiving cavity 211, but also introduce the foam in the receiving cavity 211 into the flushing nozzle 32, and spray it into the toilet cavity 11 through the flushing nozzle 32 to achieve circulation.

[0061] In addition, the smart toilet of this invention can change the feeling of holding one's breath and the fear of looking directly at the inside of the toilet when entering the toilet. It achieves the effects of preventing odor, preventing sewage splashing, and preventing viruses. It uses foam to isolate odors, prevent sewage backflow and splashing, and prevent the growth of viruses. It can also achieve a cleaner toilet flushing effect. The controller can control the foam to enter the toilet cavity in advance, which plays a lubricating role. When excrement falls into the toilet cavity, it naturally has a slippery effect. During flushing, it makes the flushing more thorough. At the same time, it can also achieve multiple effects of saving water and maintaining hygiene, providing users with a healthy and comfortable living experience.

[0062] It should be noted that controller 29 refers to the master command device that controls the starting, speed regulation, braking, and reversing of the motor by changing the wiring of the main circuit or control circuit and changing the resistance value in the circuit according to a predetermined sequence. It consists of a program counter, instruction register, instruction decoder, timing generator, and operation controller. It is the "decision-making body" that issues commands, that is, it coordinates and directs the operation of the entire computer system.

[0063] Preferably, the controller 29 can be a PLC controller. A PLC controller is a digital electronic device with a microprocessor, used for automated control, and is a digital logic controller that can load control instructions into memory for storage and execution at any time. A programmable controller is modularly composed of an internal CPU, instruction and data memory, input / output units, power supply module, digital / analog units, etc. The PLC logic controller includes a central processing unit and a data memory, which are electrically connected.

[0064] See Figure 7 The foaming device further includes a foam shield fixing cover 20, which forms a sealed connection with the foam shield box 2. The third water pipe 43 passes through the foam shield fixing cover 20 and the foam shield box 2 and communicates with the receiving cavity 11. The foam shield fixing cover 20 may be provided with mounting holes and fixed to the foam shield box 2 by screws. In addition, the foam shield fixing cover 20 can also be fixed to the foam shield box 2 by welding or bonding.

[0065] It should be noted that the water fitting 31 of this invention is one of the components of an existing toilet, mainly composed of an inlet valve, a drain valve, and a button. Broadly speaking, it can be divided into two main categories: one-piece and two-piece. One-piece fittings are used in one-piece toilets. Two-piece fittings are used in two-piece toilets. The inlet valve can be divided into side inlet, bottom inlet, and rear inlet. The drain valve can be divided into double-button, chain-type, and bowl-type. The button can be divided into side buttons, top buttons, and front buttons.

[0066] Accordingly, the present invention also provides a flushing method for a smart toilet, comprising the following steps:

[0067] S101. Start flushing. Water in the tank enters the water fitting through the first water pipe. The water fitting then passes water through the second water pipe to the foaming device and the flushing nozzle. The flushing nozzle flushes the toilet bowl.

[0068] When the user presses the flush switch of the smart toilet, the water fitting simultaneously supplies water to the flushing nozzle and the foaming device. The flushing nozzle then sprays water into the toilet bowl to complete the flushing process.

[0069] S102. Start foaming: The controller issues a command to start the air intake component, which introduces gas into the foaming component. The foaming component generates foam in the accommodating cavity. The foam enters the flushing nozzle sequentially from the third water pipe and the second water pipe. The flushing nozzle sprays the foam into the toilet bowl cavity, forming an insulating and splash-proof layer inside the toilet bowl cavity.

[0070] After flushing, the controller issues a command to start the air pump, which in turn introduces air into the foam stone. The foam stone generates foam in the containment cavity, and the foam enters the flushing nozzle from the nozzle sections of the third and second water pipes. The flushing nozzle sprays the foam into the toilet bowl cavity, forming an insulating and splash-proof layer inside the toilet bowl cavity.

[0071] S103. When the water level in the container reaches the lowest level, the controller issues a command to start the venting component and the liquid inlet component. The venting component discharges the gas in the container, making the container under negative pressure. Water automatically enters the container from the third water pipe. The liquid inlet component adds foaming liquid to the container. When the water level in the container is higher than the highest level, the controller issues a command to shut down the venting component and the liquid inlet component.

[0072] This invention provides a flushing method for an intelligent toilet. First, the toilet chamber is flushed with water, and then foam is introduced into the toilet chamber. The foam is used to isolate odors, prevent sewage backflow and splashing, and inhibit the growth of viruses, thus achieving a cleaner toilet flushing effect. The controller can pre-introduce foam into the toilet chamber, which acts as a lubricant, making the excrement slippery when it falls into the toilet chamber. This makes the flushing more thorough, while also achieving multiple benefits such as water conservation and maintaining hygiene, providing users with a healthy and comfortable living experience.

[0073] The above description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. Therefore, any equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A smart toilet, characterized by, The toilet body, the foaming device and the flushing device; the toilet body is equipped with a toilet cavity and a water tank, the flushing device includes a water component and a flushing nozzle, the water component includes a water inlet and a water outlet, the water inlet is connected with the water tank through a first water pipe, the water outlet is connected with the flushing nozzle through a second water pipe, the foaming device is connected with the water component and the flushing nozzle through a third water pipe, wherein the third water pipe is communicated with the second water pipe, the water in the water tank enters the water component through the first water pipe, the water component passes the water to the foaming device and the flushing nozzle through the second water pipe and the third water pipe, the foaming device passes the foam to the flushing nozzle through the third water pipe and the second water pipe, and the flushing nozzle sprays the water and the foam into the toilet cavity in sequence, the foaming device includes a foam shield water tank, a foam shield box, an air inlet assembly, a liquid inlet assembly and a foaming assembly; the foam shield water tank is equipped with a containing cavity, the foam shield box and the foaming assembly are arranged in the containing cavity, and the foam shield box is in sealed connection with the foam shield water tank; the air inlet assembly and the liquid inlet assembly are arranged in the foam shield box, the air inlet assembly is connected with the foaming assembly through a pipeline and passes the gas into the foaming assembly, the liquid inlet assembly is communicated with the containing cavity through a pipeline and passes the foaming liquid into the containing cavity, the third water pipe is communicated with the containing cavity and passes the water into the containing cavity, and the foaming assembly foams in the containing cavity; the second water pipe includes a water component section and a nozzle section, the water component section is connected on the water component and a three-way connector, and the nozzle section is connected on the flushing nozzle and the three-way connector. The length of the second water pipe water component section is greater than the length of the nozzle section.

2. The intelligent toilet of claim 1, wherein, The edge of the foam shield box is clamped on the edge of the foam shield water tank, so that the containing cavity forms a sealed space.

3. The intelligent toilet of claim 1, wherein, The edge of the foam shield water tank is provided with a groove, a sealing ring is arranged in the groove, the edge of the foam shield box is clamped on the edge of the foam shield water tank, and the foam shield box and the foam shield water tank are tightly connected through the sealing ring, so that the containing cavity is in a sealed state.

4. The intelligent toilet of claim 3, wherein, The foaming device further comprises an exhaust assembly arranged on the foam shield box, which is used for exhausting the air in the containing cavity, so that the water enters the containing cavity from the third water pipe.

5. The intelligent toilet of claim 1, wherein, The exhaust assembly comprises an exhaust valve and an exhaust pipe connected with the exhaust valve, the exhaust pipe is communicated with the containing cavity, and the exhaust valve exhausts the air in the containing cavity through the exhaust pipe, so that the containing cavity is in a negative pressure state, and the water automatically enters the containing cavity from the third water pipe.

6. The intelligent toilet of claim 5, wherein, The foaming device further comprises a detector and a controller, the detector is arranged in the containing cavity and is used for detecting the water amount in the containing cavity, and the detector, the exhaust assembly, the liquid inlet assembly and the air inlet assembly are electrically connected with the controller.

7. The intelligent toilet of claim 5, wherein, The detector comprises a detector body and a connecting section connected with the detector body, one end of the connecting section penetrates through the foam shield box and is electrically connected with the controller, the connecting section is provided with a thread, and the connecting section comprises a conductive wire electrically connected with the detector body and a plastic sleeve wrapped outside the conductive wire.

8. The intelligent toilet of claim 7, wherein, The air inlet assembly comprises an air pump and an air pump protection sleeve, the air pump protection sleeve is sleeved on the air pump and fixes the air pump in the foam shield box.

9. The intelligent toilet of claim 1, wherein, ​ 10. The intelligent toilet of claim 1, wherein, The liquid inlet assembly comprises a liquid pumping device and a liquid pumping device protection sleeve, the liquid pumping device protection sleeve is sleeved on the liquid pumping device and fixes the liquid pumping device in the foam shield box.

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