Toilet foaming system

Abstract

The application relates to the technical field of bathroom equipment, and discloses a toilet foaming system, which comprises a water tank, a water pump, a waterway switching piece and a flushing assembly which are sequentially connected, the waterway switching piece comprises a water inlet, a first water outlet and a second water outlet, the water inlet is communicated with the output end of the water pump, and the first water outlet is communicated with the input end of the flushing assembly. A liquid storage device is suitable for storing a foaming agent, a mixing device is suitable for mixing the foaming agent and water, and a liquid pumping device is respectively communicated with the liquid storage device, the mixing device and the second water outlet. A first control module is suitable for acquiring a first control instruction and controlling the waterway switching piece to open the second water outlet, the water pump and the mixing device according to the first control instruction; wherein the first control instruction is sent by a control terminal, the application can significantly reduce the system cost and ensure stable and efficient foaming under the condition of zero water pressure.

Description

Technical Field

[0001] This application relates to the field of sanitary ware technology, specifically to toilet foaming systems. Background Technology

[0002] As an important product in modern bathrooms, smart toilets are constantly being upgraded to enhance the user experience. Among them, the "foam shield" function, which forms a dense foam layer by pre-spraying on the water seal surface of the toilet, can effectively prevent dirt from splashing, reduce the spread of odors, and enhance the cleaning effect. It has become one of the hallmark features of mid-to-high-end smart toilets.

[0003] Currently, there are two main technological approaches to achieving foaming in smart toilet foam shields. The first approach relies on a separate electronically controlled water circuit switching valve and a dedicated diaphragm pump: the valve connects the foam liquid supply, while the pump extracts the foam concentrate and delivers it to the foaming components. While this approach ensures effective foaming, it requires additional valves and pumps, leading to a complex system structure and significantly increased component costs. The second approach uses a mechanical pumping mechanism (such as utilizing the Venturi effect or a piston), where the foaming process relies on the pressure of the toilet's inlet water supply. While this reduces the cost of a dedicated pump, it still requires a water circuit switching valve to connect the pressurized water supply, and its foaming effect is highly dependent on the inlet water pressure. In zero-pressure conditions, the foam concentrate cannot be extracted, and no water source is available, causing the foam layer to fail and significantly impacting the user experience. Utility Model Content

[0004] This application provides a toilet foaming system to solve the problem of significantly reducing system costs while ensuring stable and efficient foaming under zero water pressure conditions.

[0005] In a first aspect, this application provides a toilet foaming system, comprising:

[0006] A flushing device includes a water tank, a water pump, a water circuit switching component, and a flushing assembly connected in sequence. The water circuit switching component includes an inlet, a first outlet, and a second outlet. The inlet is connected to the output end of the water pump, and the first outlet is connected to the input end of the flushing assembly.

[0007] A foaming assembly includes a liquid storage device, a mixing device, and a liquid extraction device. The liquid storage device is adapted to store a foaming agent, the mixing device is adapted to mix the foaming agent and water, and the liquid extraction device is connected to the liquid storage device, the mixing device, and a second water outlet, respectively.

[0008] A first control module is electrically connected to the water pump, the water circuit switching device, and the mixing device, respectively. The first control module is adapted to acquire a first control command and control the water circuit switching device to open the second water outlet, the water pump, and the mixing device according to the first control command; wherein, the first control command is issued by a control terminal.

[0009] Beneficial effects: By connecting the second outlet of the water circuit switching device to the liquid extraction device and sharing a single water pump with the flushing device, the need for a separate water circuit switching valve and foaming diaphragm pump is eliminated, enabling zero-cost water circuit switching and significantly reducing costs. Utilizing water storage in the tank and active pressurization by the water pump, stable foaming at zero water pressure can be achieved, solving the dependence of traditional mechanical structures on tap water pressure and overcoming water pressure limitations. Simultaneously, the water pump continuously pressurizes the mechanical liquid extraction device, ensuring the normal functioning of the foam shield under zero water pressure, thus improving system reliability.

[0010] In one optional embodiment, the flushing assembly includes:

[0011] The system includes an upward jet nozzle and a downward jet nozzle, with two first water outlets, each connected to the upward jet nozzle and the downward jet nozzle respectively.

[0012] Beneficial effects: The dual-nozzle design of the top and bottom spray nozzles ensures that the flushing function remains independent and that the foaming water circuit reuse switching valve does not affect the original flushing performance.

[0013] In one alternative implementation, it further includes:

[0014] The second control module is electrically connected to the water pump and the water circuit switching device respectively. The second control module is adapted to acquire a second control command and, according to the second control command, control the water circuit switching device to open the first water outlet and control the water pump to start. The second control command is issued by the control terminal.

[0015] Beneficial effects: The same water pump serves both flushing and foaming modes in a time-sharing manner, maximizing hardware utilization and enabling efficient resource reuse. The independent configuration of the first and second control modules avoids interference between foaming and flushing commands, improving system stability and achieving functional isolation.

[0016] In one optional embodiment, the flushing device further includes:

[0017] A water supply assembly includes an inlet and an outlet. The inlet of the water supply assembly is used to connect with an external water source, and the outlet of the water supply assembly is connected with the water tank.

[0018] Beneficial effects: By using the water tank as an independent water storage unit, a water source is provided for the water pump, avoiding the dependence of the foaming function on tap water pressure. At the same time, the water supply component is used to supply water to the water tank to ensure that there is a sufficient water source in the tank for flushing and foaming.

[0019] Beneficial effects: The water inlet valve connects to an external water source, allowing for connection or disconnection of the water supply, facilitating future maintenance and repair of the smart toilet. The water inlet valve introduces external water into the tank, thus maintaining water levels. Simultaneously, the water inlet valve controls the water level in the tank, ensuring a consistent water supply.

[0020] In one optional embodiment, the liquid extraction device includes:

[0021] shell;

[0022] A piston body is slidably disposed within the housing along the axial direction of the housing. The piston body divides the inner cavity of the housing into a liquid storage chamber and a pressure chamber. The pressure chamber is provided with a water supply interface and a drain interface. The water supply interface is connected to the second water outlet, and the drain interface is connected to the mixing device.

[0023] An elastic element is disposed within the pressure chamber, and the elastic element has a tendency to drive the piston body away from the water supply interface.

[0024] Beneficial effects: Mechanical pumping operates solely on water pressure and the reset mechanism of elastic components, requiring no additional power supply and achieving zero power consumption. Simultaneously, the pump actively pressurizes the pressure chamber, driving the piston's movement and overcoming the failure issues of traditional mechanical structures under zero water pressure.

[0025] In one optional embodiment, the liquid storage chamber is provided with a liquid inlet and a liquid outlet, the liquid inlet being connected to the liquid storage device and the liquid outlet being connected to the mixing device.

[0026] Beneficial effects: The water pumped into the water supply interface is used to provide water pressure to the pressure chamber, drive the piston to move, and compress the space of the storage chamber, so as to squeeze the foaming agent in the storage chamber into the mixing device. When foaming is completed and the water supply is stopped, the elastic element can pull the piston back, so that the storage chamber is in a negative pressure state, and then the foaming agent in the storage device is drawn back into the storage chamber for the next foaming.

[0027] In one alternative embodiment, the mixing device includes:

[0028] The box body has its inner cavity connected to the drain port and the drain outlet;

[0029] A hybrid component is disposed within the housing;

[0030] The foam nozzle is connected to the inner cavity of the box and is adapted to spray water and foaming agent from the box.

[0031] Beneficial effects: By integrating the box and mixing components into one unit, space can be saved, pipeline length can be shortened, and the mixing efficiency of foaming agent and water can be improved.

[0032] In one alternative implementation, the first control module and the second control module are integrated on a circuit board, and the control terminal includes the circuit board.

[0033] Beneficial effects: Integrating the first and second control modules can reduce the number of circuit boards, simplify the assembly process, and reduce material costs. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the structure of a toilet foaming system according to an embodiment of this application;

[0036] Figure 2 This is a schematic diagram of the water supply component in this application;

[0037] Figure 3 for Figure 2 A magnified view of part A in the diagram;

[0038] Figure 4 This is a schematic diagram of the liquid extraction device in this application;

[0039] Figure 5 This is a structural diagram showing the relative positions of the toilet foaming system and the ceramic body in this application.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Water tank; 2. Water pump; 3. Water circuit switching component; 301. Water inlet; 302. First water outlet; 303. Second water outlet; 4. Mixing device; 401. Box body; 402. Foam nozzle; 5. Liquid extraction device; 501. Outer shell; 502. Piston body; 503. Liquid storage chamber; 504. Pressure chamber; 505. Water supply interface; 506. Drain interface; 507. Elastic component; 508. Liquid inlet interface; 509. Liquid drain interface; 6. Top flush nozzle; 7. Bottom flush nozzle; 8. Water inlet valve; 9. Water receiving valve; 10. Ceramic body. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0043] The following is combined Figures 1 to 5 This describes an embodiment of the present application.

[0044] According to an embodiment of this application, a toilet foaming system is provided, including a flushing device, a foaming component, and a first control module. The flushing device includes a water tank 1, a water pump 2, a water path switching component 3, and a flushing component connected in sequence. The water path switching component 3 includes an inlet 301, a first outlet 302, and a second outlet 303. The inlet 301 is connected to the output end of the water pump 2, and the first outlet 302 is connected to the input end of the flushing component. The foaming component includes a liquid storage device, a mixing device 4, and a liquid extraction device 5. The liquid storage device is suitable for storing a foaming agent, the mixing device 4 is suitable for mixing the foaming agent and water, and the liquid extraction device 5 is connected to the liquid storage device, the mixing device 4, and the second outlet 303, respectively. The first control module is electrically connected to the water pump 2, the water circuit switching component 3, and the mixing device 4 respectively. The first control module is adapted to acquire the first control command and control the water circuit switching component 3 to open the second water outlet 303, and to start the water pump 2 and the mixing device 4 according to the first control command; wherein, the first control command is issued by the control terminal.

[0045] Understandably, the water in tank 1 can be used not only for the flushing action of the flushing device but also for the foaming action in the foaming component. This allows the foam shield function to be achieved even when the water supply is interrupted, i.e., in a zero water pressure state. The water in tank 1 can serve as a reserve of water for the foaming component. When foaming is required, the water in tank 1 is drawn by pump 2, which provides pressure kinetic energy to the liquid extraction device 5 and injects it into the mixing device 4 for mixing with the foaming agent. Specifically, when the first control module controls and drives the pump 2, the water circuit switching component 3, and the mixing device 4, the second outlet 303 is in the open state, and the first outlet 302 is in the closed state.

[0046] It should be noted that the pumping device 5 is adapted to draw the foaming agent from the storage device and discharge it into the mixing device 4, and is also adapted to guide the second outlet 303 into the mixing device 4. The pumping device 5, with its water pressure piston structure, uses the incoming water pressure to discharge the foaming agent into the mixing device 4. Furthermore, the water entering the pumping device 5 through the second outlet 303 can not only be used for water pressure supply, but can also enter the mixing device 4 after entering the pumping device 5, serving as foaming water.

[0047] Optionally, the water circuit switching component 3 can be configured as a switching valve.

[0048] In this embodiment, the second outlet 303 of the water circuit switching component 3 is connected to the liquid extraction device 5, and shares a single water pump 2 with the flushing device. This eliminates the need for a separate water circuit switching valve and a foaming diaphragm pump, enabling zero-cost water circuit switching and significantly reducing costs. By utilizing water storage in the water tank 1 and active pressurization by the water pump 2, stable foaming under zero water pressure can be achieved, solving the dependence of traditional mechanical structures on tap water pressure and overcoming water pressure limitations. Simultaneously, the water pump 2 continuously pressurizes the mechanical liquid extraction device 5, ensuring the normal functioning of the foam shield under zero water pressure, thus improving system reliability.

[0049] In one embodiment, the flushing assembly includes an upper flushing nozzle 6 and a lower flushing nozzle 7, and two first water outlets 302 are provided, which are respectively connected to the upper flushing nozzle 6 and the lower flushing nozzle 7.

[0050] It should be noted that the top-flush nozzle 6 and the bottom-flush nozzle are common structures in smart toilets. The top-flush nozzle 6 is used to spray from the top of the inner wall of the ceramic body 10 and rotate along the inner wall of the ceramic body 10 for cleaning. The bottom-flush nozzle is used to spray from the water trap of the ceramic body 10, which can flush the dirt in the water trap to the drain pipe.

[0051] In this embodiment, the dual-nozzle design of the top-flush nozzle 6 and the bottom-flush nozzle 7 ensures that the flushing function remains independent and that the foaming water circuit reuse switching valve does not affect the original flushing performance.

[0052] In one embodiment, a second control module is further included, which is electrically connected to the water pump 2 and the water circuit switching component 3 respectively. The second control module is adapted to acquire a second control command and, according to the second control command, control the water circuit switching component 3 to open the first water outlet 302 and control the water pump 2 to start. The second control command is issued by the control terminal.

[0053] It should be noted that the upper spray nozzle 6 and the lower spray nozzle are connected to the water circuit switching component 3 through two first water outlets 302 respectively. Therefore, the second control module can also control the opening sequence of the two first water outlets 302. First, the water pump 2 and the upper spray nozzle 6 are turned on simultaneously, and then the lower spray nozzle is turned on, thereby achieving a comprehensive cleaning of the inner cavity of the ceramic body 10.

[0054] In this embodiment, the same water pump serves both flushing and foaming modes in two separate sessions, maximizing hardware utilization and enabling efficient resource reuse. The independent configuration of the first and second control modules avoids interference between foaming and flushing commands, improving system stability and achieving functional isolation.

[0055] In one embodiment, the flushing device further includes a water supply component, comprising an inlet and an outlet. The inlet of the water supply component is connected to an external water source, and the outlet of the water supply component is connected to the water tank 1. As a shared structure for both the flushing device and the foaming component, the water supply component can meet the water requirements for flushing and foaming, ensuring the operation of the two independent structures and achieving a stable water supply.

[0056] In this embodiment, water tank 1 is used as an independent water storage unit to provide water for water pump 2, thus avoiding the dependence of the foaming function on tap water pressure. At the same time, the water supply component is used to supply water to water tank 1 to ensure that water tank 1 has a sufficient water source for flushing and foaming.

[0057] In one embodiment, the water supply assembly includes an inlet valve 8 and a receiving valve 9, which are connected. The inlet valve 8 is located inside the water tank 1, and the receiving valve 9 is connected to an external water source.

[0058] It should be noted that the water inlet valve 9 is an angle valve that controls the switch for external water supply. The water inlet valve 8 is commonly used in smart toilets and can replenish water at the minimum water level and stop water supply at the maximum water level, thereby ensuring the water supply in the water tank 1.

[0059] In this embodiment, the water inlet valve 9 is used to connect to an external water source, enabling the connection or disconnection of the external water source, which facilitates the later maintenance and repair of the smart toilet. The water inlet valve 8 is used to introduce external water into the water tank 1, thereby storing water in the water tank 1. Simultaneously, a float assembly is also provided to control the water level in the water tank 1, ensuring the water supply in the water tank 1.

[0060] In one embodiment, the liquid extraction device 5 includes a housing 501, a piston body 502, and an elastic element 507. The piston body 502 is slidably disposed within the housing 501 along its axial direction, dividing the inner cavity of the housing 501 into a liquid storage chamber 503 and a pressure chamber 504. The pressure chamber 504 is provided with a water supply interface 505 and a drain interface 506. The water supply interface 505 communicates with a second water outlet 303, and the drain interface 506 communicates with a mixing device 4. The elastic element 507 is disposed within the pressure chamber 504 and has a tendency to drive the piston body 502 away from the water supply interface 505.

[0061] Understandably, the elastic element 507 can be configured as a spring, and the elastic element 507 includes a first end and a second end opposite to each other. The first end of the elastic element 507 is connected to the piston body 502, and the second end of the elastic element 507 is connected to the inner wall of the pressure chamber 504.

[0062] Optionally, the diameter of the elastic element 507 can be increased, and the outer shell 501 can be set as a cylindrical structure, so that the diameter of the elastic element 507 is close to the inner diameter of the outer shell 501. In this case, the inner wall of the outer shell 501 can limit the elastic element 507, and it is not necessary to fix the first end and / or the second end of the elastic element 507.

[0063] Optionally, the piston body 502 can be made of rubber, and the outer edge of the piston body 502 slides in contact with the inner wall of the outer shell 501 and is shaped to fit, so as to achieve a sealed separation between the pressure chamber 504 and the liquid storage chamber 503, and avoid leakage of liquid or water.

[0064] It should be noted that the liquid extraction device 5 is a common structure in the foaming components of smart toilets.

[0065] In this embodiment, the mechanical pumping works solely on water pressure and the reset mechanism 507, requiring no additional power supply and achieving zero power consumption. Simultaneously, the water pump 2 actively pressurizes the pressure chamber 504, driving the movement of the piston 502, thus overcoming the failure problem of traditional mechanical structures under zero water pressure.

[0066] In one embodiment, the liquid storage chamber 503 is provided with a liquid inlet 508 and a liquid outlet 509. The liquid inlet 508 is connected to the liquid storage device, and the liquid outlet 509 is connected to the mixing device 4.

[0067] Understandably, both the liquid inlet 508 and the liquid outlet 509 are connected to the liquid storage chamber 503. At the same time, a one-way valve is installed on the pipeline connecting the liquid inlet 508 and the liquid storage device to prevent the foaming agent in the liquid storage chamber 503 from returning to the liquid storage device during the compression and discharge process of the liquid storage chamber 503.

[0068] Optionally, a check valve can be installed on the pipeline between the drain port 509 and the mixing device 4 to prevent the residual mixture in the mixing device 4 from being sucked into the storage chamber 503 when a negative pressure is generated in the storage chamber 503.

[0069] Optionally, the liquid storage device can also be configured as a box-shaped structure with a cavity for loading foaming agent. The bottom of the liquid storage device has a first interface for connecting to the liquid inlet 508, and the top or side of the liquid storage device has a second interface for replenishing foaming agent. An end cap is also provided to seal the second interface.

[0070] In this embodiment, the water pumped into the water supply interface 505 is used to provide water pressure to the pressure chamber 504, driving the piston body 502 to move, thereby compressing the space of the liquid storage chamber 503, so that the foaming agent in the liquid storage chamber 503 is squeezed into the mixing device 4. When foaming is completed and the water supply is stopped, the elastic element 507 can pull the piston body 502 back, so that the liquid storage chamber 503 is in a negative pressure state, thereby drawing the foaming agent in the liquid storage device back into the liquid storage chamber 503 for the next foaming use.

[0071] In one embodiment, the mixing device 4 includes a housing 401, a mixing unit 4, and a foam nozzle 402. The inner cavity of the housing 401 communicates with a drain port 509 and a drain outlet 506. The mixing assembly is disposed within the housing 401. The foam nozzle 402 communicates with the inner cavity of the housing 401 and is adapted to spray water and foaming agent from the housing 401.

[0072] It should be noted that the mixing component is a common structure in smart toilets, used to initially mix the foaming agent and water entering the housing 401, thereby improving the foaming effect during the foaming process.

[0073] In this embodiment, by integrating the housing 401 and the mixing component, not only can space be saved, but the pipeline length can also be shortened, thereby improving the mixing efficiency of the foaming agent and water.

[0074] In one embodiment, the first control module and the second control module are integrated on a circuit board, and the control terminal includes the circuit board.

[0075] It should be noted that the circuit board is equipped with a signal receiving and transmitting module, used to receive commands from the user terminal and execute the first control module and the second control module respectively. The operating order of the first and second control modules can also be controlled through a preset program.

[0076] In this embodiment, the first control module and the second control module are integrated, which can reduce the number of circuit boards, simplify the assembly process, and reduce material costs.

[0077] According to an embodiment of this application, another aspect provides a control method for a smart toilet, including acquiring a first control command. Based on the first control command, the water circuit switching component 3 is controlled to open the second water outlet 303, and the water pump 2 and mixing device 4 are activated; wherein the first control command is issued by a control terminal.

[0078] Obtain the second control command. Based on the second control command, activate the water circuit switching component 3 to open the first water outlet 302 and control the water pump 2 to start; wherein, the second control command is issued by the control terminal.

[0079] In this embodiment, the flushing device and the foaming component share the same water pump 2, which switches between flushing and foaming as needed, maximizing the use of existing components and saving manufacturing costs. Simultaneously, independent control of the flushing and foaming modes ensures that the flushing action and the foam shield respond instantly, avoiding mutual interference and optimizing the user experience. In foaming mode, the water pump 2 provides forced water supply, ensuring that the liquid extraction device 5 can still operate even without tap water pressure, thus guaranteeing a zero-water-pressure process.

[0080] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A toilet bowl foaming system characterized by, include: The flushing device includes a water tank (1), a water pump (2), a water circuit switching component (3), and a flushing assembly connected in sequence. The water circuit switching component (3) includes an inlet (301), a first outlet (302), and a second outlet (303). The inlet (301) is connected to the output end of the water pump (2), and the first outlet (302) is connected to the input end of the flushing assembly. The foaming component includes a liquid storage device, a mixing device (4) and a liquid extraction device (5). The liquid storage device is suitable for storing foaming agent, the mixing device (4) is suitable for mixing foaming agent and water, and the liquid extraction device (5) is connected to the liquid storage device, the mixing device (4) and the second water outlet (303) respectively. The first control module is electrically connected to the water pump (2), the water circuit switching component (3), and the mixing device (4), respectively. The first control module is adapted to acquire a first control command and control the water circuit switching component (3) to open the second outlet (303), the water pump (2), and the mixing device (4) according to the first control command; wherein, the first control command is issued by the control terminal.

2. The toilet bowl foaming system of claim 1, wherein, The flushing assembly includes: The top jet nozzle (6) and the bottom jet nozzle (7) are provided with two first water outlets (302), and the two first water outlets (302) are respectively connected to the top jet nozzle (6) and the bottom jet nozzle (7).

3. The toilet bowl foaming system of claim 2, wherein, Also includes: The second control module is electrically connected to the water pump (2) and the water circuit switching component (3) respectively. The second control module is adapted to acquire a second control command and, according to the second control command, control the water circuit switching component (3) to open the first outlet (302) and control the water pump (2) to start. The second control command is issued by the control terminal.

4. The toilet bowl foaming system of claim 1, wherein, The flushing device also includes: The water supply component includes an inlet and an outlet. The inlet of the water supply component is used to connect with an external water source, and the outlet of the water supply component is connected with the water tank (1).

5. The toilet bowl foaming system of claim 1, wherein, The liquid extraction device (5) includes: Outer shell (501); The piston body (502) is slidably disposed inside the outer shell (501) along the axial direction of the outer shell (501). The piston body (502) divides the inner cavity of the outer shell (501) into a liquid storage chamber (503) and a pressure chamber (504). The pressure chamber (504) is provided with a water supply interface (505) and a drain interface (506). The water supply interface (505) is connected to the second water outlet (303), and the drain interface (506) is connected to the mixing device (4). An elastic element (507) is disposed within the pressure chamber (504), the elastic element (507) having a tendency to drive the piston body (502) away from the water supply interface (505).

6. The toilet bowl foaming system of claim 5, wherein, The liquid storage chamber (503) is provided with a liquid inlet (508) and a liquid outlet (509). The liquid inlet (508) is connected to the liquid storage device, and the liquid outlet (509) is connected to the mixing device (4).

7. The toilet bowl foaming system of claim 6, wherein, The mixing device (4) includes: The box body (401) has its inner cavity connected to the drain port (509) and the drain outlet (506); A mixing component is disposed within the housing (401); The foam nozzle (402) is connected to the inner cavity of the box (401) and is adapted to spray out the water and foaming agent inside the box (401).

8. The toilet bowl foaming system of claim 3, wherein, The first control module and the second control module are integrated on a circuit board, and the control terminal includes the circuit board.

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