Flushing method of intelligent pedestal pan with flushing electromagnetic valve and intelligent pedestal pan

Through the combination of flushing solenoid valve and booster pump controlled by the control board, combined with dynamic adjustment of the water pressure sensor, the flushing process of the smart toilet is optimized, the problems of high noise and high energy consumption are solved, and the siphon effect of noise reduction and energy saving is achieved.

CN120273424APending Publication Date: 2025-07-08HANYU GRP CO LTD
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Patent Information

Application Number
CN202510501956.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2025-07-08

AI Technical Summary

Technical Problem

The jet siphon flushing method of existing smart toilets is very noisy, and the prior art consumes high or noise when washing and flushing at large flow rates, making it difficult to balance the siphon effect and energy consumption.

Method used

The flushing solenoid valve and booster pump are combined with the control panel to control the opening and closing of the brush ring water outlet and the bottom water outlet in stages, and dynamically adjust the strong flushing time with the water pressure sensor to optimize flow control.

Benefits of technology

It realizes the siphon effect while reducing noise, reduces energy consumption, avoids the formation of cavity in the toilet, and improves the intelligence and adaptability of the flushing process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a flushing method of an intelligent pedestal pan with a flushing electromagnetic valve, which comprises the following steps: a control panel drives the flushing electromagnetic valve to open a brush ring water outlet and close a bottom flushing water outlet for a first set time T1; the control panel drives the flushing electromagnetic valve to open the bottom flushing water outlet and close the brush ring water outlet, the booster pump works for a second set time T2, and the value range of the second set time T2 is 1.5-3 seconds; the control panel drives the flushing electromagnetic valve to open the bottom flushing water outlet and the brush ring water outlet, and the booster pump works for a third set time T3; and the control panel drives the flushing electromagnetic valve to close the bottom flushing water outlet and maintain the open state of the brush ring water outlet for fourth set time T4. In the flushing process, accumulated water in the water storage bay of the ceramic closestool can rapidly form siphons to take away dirt, water can be supplemented in time, the situation that water directly flushes the wall face is avoided, and therefore the purpose of reducing noise is achieved.
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Description

Technical Field

[0001] The present invention relates to the field of intelligent toilets, and particularly to a flushing method for an intelligent toilet provided with a flushing solenoid valve, which belongs to E03D 11 / 06, E03D 1 / 28, E03D 1 / 38, E03D 11 / 00 in the IPC classification. Background Art

[0002] Existing intelligent toilets generally adopt the jet siphon flushing method. When the toilet flushes by jet siphon, high-pressure water jets out from a small-diameter nozzle, forming a strong jet flow with a large flow velocity and strong cleaning power. However, when the strong jet flow impacts, it generates relatively large noise. Especially when all the water in the siphon pipe is emptied, a cavity is formed in the toilet, and the high-speed fluid directly shoots in, causing even greater noise.

[0003] There are also intelligent toilet bowls that, when flushing, first open the brush ring water outlet and close the bottom flushing water outlet of the flushing component, and switch to a low gear for small-flow brush ring flushing. Then, the flushing component simultaneously opens the brush ring water outlet and the bottom flushing water outlet, and switches to a high gear for large-flow flushing. Finally, the flushing component opens the brush ring water outlet and closes the bottom flushing water outlet, and switches to a low gear again for small-flow water replenishment. After the water replenishment is completed, the flushing ends. During the entire flushing process, while the accumulated water in the toilet is drained away, it is continuously replenished, and there is always a certain amount of liquid in the toilet and the liquid level reaches a certain height, avoiding the formation of a cavity in the toilet. In this way, the water in the urinal can buffer the liquid ejected from the bottom flushing water outlet and prevent the water flow from directly hitting the wall surface, thereby achieving the purpose of noise reduction. In this prior art, when performing large-flow flushing, the flushing component simultaneously opens the brush ring water outlet and the bottom flushing water outlet, and adjusts the pump power to achieve large-flow flushing at a high gear to form siphon sewage discharge. If the pump power is low, it is difficult to form a siphon. If the pump power is high, it will increase energy consumption and noise.

[0004] For common knowledge and terms, reference can be made to the 2nd edition of the "Mechanical Engineering Handbook" and the "Electrical Engineering Handbook" published by China Machine Press in 1997, the national standard GB / T 34549 "Intelligent Toilets for Sanitary Ware", the national standard GB / T 23131 "Electric Toilet Seats for Household and Similar Purposes", the industry standard QB / T 5735-2022 "Flushing Solenoid Valves for Tankless Household and Similar Purpose Electric Toilet Seats", and the Chinese patent document CN115183155B "A Water-using Appliance for Measuring Water Pressure and Monitoring Leakage, Internet of Things System and Working Method". Summary of the Invention

[0005] To solve the problems mentioned above, the present invention proposes a flushing method for an intelligent toilet provided with a flushing solenoid valve. The intelligent toilet includes a control board, a ceramic toilet bowl, and a flushing assembly. The ceramic toilet bowl is provided with a bottom flushing port and a brush ring port. The flushing assembly includes a booster pump, a flushing solenoid valve, a brush ring outlet pipe communicated with the brush ring port, and a bottom flushing outlet pipe communicated with the bottom flushing port. The water inlet end of the booster pump is communicated with a water source, the water drainage end of the booster pump is communicated with the water inlet pipe of the flushing solenoid valve, the brush ring water outlet of the flushing solenoid valve is communicated with the brush ring outlet pipe, and the bottom flushing water outlet of the flushing solenoid valve is communicated with the bottom flushing outlet pipe. The flushing method includes the following instructions:

[0006] S1 The control board issues a brush ring instruction to drive the flushing solenoid valve to open the brush ring water outlet and close the bottom flushing water outlet for a first set time T1;

[0007] S2 The control board issues a strong flushing instruction to drive the flushing solenoid valve to open the bottom flushing water outlet and close the brush ring water outlet, and the booster pump works for a second set time T2. The value range of the second set time T2 is 1.5 seconds - 3 seconds;

[0008] S3 The control board issues a washing flushing instruction to drive the flushing solenoid valve to open the bottom flushing water outlet and the brush ring water outlet, and the booster pump works for a third set time T3;

[0009] S4 The control board issues a water replenishing instruction to drive the flushing solenoid valve to close the bottom flushing water outlet and maintain the opening state of the brush ring water outlet for a fourth set time T4;

[0010] S5 After passing the fourth set time T4, the control board issues a stop flushing instruction to the flushing assembly.

[0011] Through the technical solution of the present invention, during the flushing process, when the control board executes the strong flushing instruction, a large flow of water is distributed to the bottom flushing water outlet by the booster pump in a short time. Then the control board executes the washing flushing instruction to provide water to both the bottom flushing water outlet and the brush ring water outlet at the same time. In this way, the accumulated water in the water seal of the ceramic toilet bowl can quickly form a siphon to take away the dirt, and the water can be replenished in time. There is basically a certain amount of liquid in the water seal of the toilet bowl, avoiding the formation of a cavity in the water seal of the toilet bowl. In this way, the water in the water seal can buffer the liquid ejected from the bottom flushing water outlet, avoiding the water flow from directly hitting the wall surface, thereby achieving the purpose of noise reduction.

[0012] In some embodiments of the present invention, the control board issuing the brush ring instruction includes: the booster pump starts to work, and the first set time T1 includes the working time t11 of the pump speed-up stage and the working time t12 of the pump steady-speed stage.

[0013] Further, the first set time T1 is preferably not less than 5 seconds, and the working time t11 in the pump speed-up stage is preferably not greater than 1 second.

[0014] In the start of the flushing stage, the booster pump starts to work and gradually changes its flow rate by a slow increase in the pump speed, so that when brushing the rim, the problem of sudden ejection of the gas remaining in the flushing component at the beginning, resulting in too large a liquid ejection speed and splashing, can be avoided.

[0015] In some embodiments of the present invention, the flushing component further includes a water pressure sensor provided upstream of the flushing solenoid valve. This water pressure sensor is used to sense the pressure P of the water flow entering the water inlet pipe of the flushing solenoid valve. The control board dynamically sets the strong flushing time T2 (1.5 - 3 seconds) based on the pressure P detected by the water pressure sensor. The second set time T2 is inversely proportional to the value of the pressure P, specifically:

[0016] - When P ≥ 0.6 MPa, T2 = 1.5 - 2 seconds;

[0017] - When 0.2 MPa ≤ P < 0.6 MPa, T2 = 2 - 2.5 seconds;

[0018] - When P < 0.2 MPa, T2 = 2.5 - 3 seconds.

[0019] By using the water pressure sensor to sense the pressure P of the water flow entering the water inlet pipe of the flushing solenoid valve, the dynamic adjustment of the second set time T2 is implemented, so that the water in the toilet trap can be accurately controlled to basically maintain a certain amount of liquid, avoiding the formation of a cavity in the toilet trap. In this way, the water in the trap can buffer the liquid ejected from the bottom flushing outlet, avoiding the water flow hitting the wall directly, thereby achieving a better noise reduction purpose.

[0020] In some embodiments of the present invention, the control board issues a water replenishment command including: the booster pump maintains its operation, and the fourth set time T4 includes the working time t41 in the pump constant speed stage and the working time t42 in the pump deceleration stage.

[0021] Further, the working time t41 in the pump constant speed stage is preferably not greater than 3 seconds, and the working time t42 in the pump deceleration stage is preferably not greater than 1 second.

[0022] In the end of the flushing stage, the booster pump maintains its operation and gradually changes its flow rate by a slow decrease in the pump speed, so that the flushing component can be prevented from suddenly dropping at a high speed, forming a large pressure difference, and further optimizing the noise reduction effect.

[0023] The present invention also provides an intelligent toilet, including a control board, a ceramic toilet, and a flushing component. The flushing component includes a booster pump, a flushing solenoid valve, a rim flushing outlet pipe, and a bottom flushing outlet pipe. The control board is in signal connection with the booster pump and the flushing solenoid valve, and is used to execute any one of the above flushing methods.

[0024] Further, it further includes a water pressure sensor, which is arranged upstream of the water inlet pipe of the flushing solenoid valve and is used to detect the water pressure in real time and feedback it to the control board to dynamically adjust the second set time T2. The water pressure sensor is connected to the water inlet pipe of the flushing solenoid valve by means of a hose, screwing or clamping, or is integrated with the flushing solenoid valve into an integrated structure.

[0025] Preferably, the control board adjusts the operating speed of the booster pump through a Pulse Width Modulation (PWM) signal to achieve flow control in the pump speed-up, speed-stabilization, and speed-down stages.

[0026] The intelligent toilet of the present invention optimizes the flow control and the outlet switch logic during the flushing process through the combination of a pulse solenoid valve and a booster pump, and solves the problem of insufficient bottom flushing water flow velocity that may exist in the prior art. In addition, the introduction of the water pressure sensor dynamically adjusts the strong flushing time T2 according to the water pressure, further improving the intelligence level and adaptability of the solution.

[0027] The technical solutions and effects of the present invention will be further described in conjunction with the accompanying drawings in the specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a step diagram of the flushing method of the intelligent toilet of the present invention.

[0029] Figure 2 is a control diagram of the second set time T2 of an example of the flushing method of the intelligent toilet of the present invention.

[0030] Figure 3 is a structural schematic diagram of the ceramic toilet and the flushing assembly of the intelligent toilet of the present invention.

[0031] Figure 4 An exploded view of the ceramic toilet and the flushing assembly of the intelligent toilet of the present invention.

[0032] Figure 5 is a connection schematic diagram of the flushing solenoid valve and the water pressure sensor of the intelligent toilet of the present invention.

[0033] REFERENCE SIGNS

[0034] Ceramic toilet 20, bottom flushing port 201, brush ring port 202, flushing assembly 30, booster pump 301, water pressure sensor 302, brush ring water outlet pipe 303, bottom flushing water outlet pipe 304, flushing solenoid valve 300, water inlet pipe 311, brush ring water outlet 312, bottom flushing water outlet 313. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Apparently, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0036] As shown in the accompanying drawings, the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. When describing the devices, systems, equipment, and structures of the present invention, the position of the user sitting on the toilet is used as a reference. The front of the user's vision is the front or the front side, and the opposite side is the rear or the rear side. The right side of the user is the right or the right side, and the left side of the user is the left or the left side. The side where the ceramic toilet is placed on the ground is the lower or the lower side, and the opposite side is the upper or the upper side. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation of the present invention.

[0037] A flushing method for an intelligent toilet according to the present invention is as Figures 1 - 2 shown.

[0038] The intelligent toilet according to the present invention is as Figures 3 - 4 shown, and it includes a control board (not shown), a ceramic toilet 20, and a flushing assembly 30. The ceramic toilet is provided with a bottom flushing port 201 and a brush ring port 202. The flushing assembly includes a booster pump 301, a flushing solenoid valve 300, a brush ring outlet pipe 303 communicating with the brush ring port, and a bottom flushing outlet pipe 304 communicating with the bottom flushing port. The water inlet end of the booster pump 301 is communicated with a water source, the water drainage end of the booster pump 301 is communicated with the water inlet pipe 311 of the flushing solenoid valve 300. The brush ring water outlet 312 of the flushing solenoid valve 302 is communicated with the brush ring outlet pipe 303, and the bottom flushing water outlet 313 of the flushing solenoid valve 300 is communicated with the bottom flushing outlet pipe 304. The flushing method includes the following instructions:

[0039] S1 The control board issues a brush ring instruction, driving the flushing solenoid valve 300 to open the brush ring water outlet 312 and close the bottom flushing water outlet 313 for a first set time T1;

[0040] S2 The control board issues a strong flushing instruction, driving the flushing solenoid valve 300 to open the bottom flushing water outlet 313 and close the brush ring water outlet 312, and the booster pump 301 works for a second set time T2. The value range of the second set time T2 is 1.5 seconds - 3 seconds;

[0041] S3 The control board issues a washing and flushing instruction, driving the flushing solenoid valve 300 to open the bottom flushing water outlet 313 and the brush ring water outlet 312, and the booster pump 301 works for a third set time T3;

[0042] The S4 control board issues a water replenishment instruction, driving the flushing solenoid valve 300 to close the bottom flushing water outlet 313 and maintaining the open state of the brush ring water outlet 312 for a fourth set time T4.

[0043] After waiting for the fourth set time T4 in S5, the control board issues a stop flushing instruction to the flushing assembly 30.

[0044] The above S1 step: driving the flushing solenoid valve 300 to open the brush ring water outlet 312 and close the bottom flushing water outlet 313 for a first set time T1. In some embodiments of the present invention, the following steps are further included:

[0045] The booster pump 301 starts to work, including a pump speed-up stage and a pump steady-speed stage; the first set time T1 includes the working time t11 of the pump speed-up stage and the working time t12 of the pump steady-speed stage. In some embodiments of the present invention, the first set time T1 is preferably not less than 5 seconds, and the working time t11 of the pump speed-up stage is preferably not more than 1 second. In some embodiments of the present invention, the control board can adjust the pulse width modulation signal by changing the duty cycle of the signal to change the operating speed of the booster pump 301.

[0046] After the first set time T1, the following strong flushing instruction and subsequent steps are executed.

[0047] The control board issues a strong flushing instruction, driving the flushing solenoid valve 300 to open the bottom flushing water outlet 313 and close the brush ring water outlet 312, and the booster pump 301 works for a second set time T2, and the value range of the second set time T2 is 1.5 seconds to 3 seconds.

[0048] The flushing solenoid valve 300 provided in this embodiment is as Figure 5 shown, including a water inlet pipe 311, a brush ring water outlet 312 and a bottom flushing water outlet 313. Its specific structure and requirements refer to the industry standard QB / T 5735-2022 "Flushing Solenoid Valve for Waterless Tank Household and Similar Electric Toilet Seats", which will not be elaborated here.

[0049] In some embodiments of the present invention, the electric toilet further includes a water pressure sensor 302 provided upstream of the flushing solenoid valve 300, as Figure 5As shown, the water pressure sensor 302 is an independent device. For its specific structure, refer to the water pressure measurement unit in the patent disclosure document CN115183155B of the applicant, "A water - using electrical appliance, Internet of Things system and working method for measuring water pressure to monitor water leakage", which will not be elaborated here. In this embodiment, the water pressure sensor 302 is connected to the water inlet pipe 311 of the flushing solenoid valve 300 by a hose. In other embodiments, the water pressure sensor 302 can be connected to the water inlet pipe 311 of the flushing solenoid valve 300 by detachable connection methods such as screwing or clamping, or it can also be a component integrated with the flushing solenoid valve 300 into an integral structure.

[0050] In some other embodiments, the same function can also be achieved by using other forms of pressure sensors. For example, a column - type pressure sensor (not shown) is provided on the outer wall of the pipeline of the water inlet pipe 311 of the flushing solenoid valve 300, and its strain part contacts the fluid in the pipeline to generate an electrical signal, which can also achieve the function of measuring the water flow pressure in the pipeline.

[0051] In some embodiments of the present invention, the second set time T2 is preferably not greater than 3 seconds, and can be 1.5 seconds, 2 seconds, 2.5 seconds, or 3 seconds. The second set time T2 set by the strong flushing instruction is inversely proportional to the water pressure value P sensed by the water pressure sensor 302. For example Figure 2 As shown, if the range value of the water pressure P sensed by the water pressure sensor 302 is above 0.6 Mpa, the second set time T2 is preferably set to 1.5 - 2 seconds; if the range value of the water pressure P sensed by the water pressure sensor is 0.2 - 0.6 Mpa, the second set time T2 is preferably set to 2 - 2.5 seconds; if the range value of the water pressure P sensed by the water pressure sensor is below 0.2 Mpa, the second set time T2 is preferably set to 2.5 - 3 seconds.

[0052] In some embodiments of the present invention, the controller dynamically adjusts the strong flushing time T2 by receiving the pressure feedback from the water pressure sensor in real - time. For example, when P = 0.8 MPa, T2 is automatically set to 1.5 seconds; if P = 0.3 MPa, then T2 is extended to 2.3 seconds to ensure the balance between the siphon effect and noise reduction.

[0053] After the second set time T2 has elapsed, the following flushing instructions and subsequent steps are executed.

[0054] Open the bottom flushing water outlet 313 and the brush ring water outlet 312 of the flushing solenoid valve 300, and the booster pump continues to work for a third set time T3;

[0055] In some embodiments of the present invention, the opening cross - sectional areas of the bottom flushing water outlet 313 and the brush ring water outlet 312 are the same. When the flushing instruction is executed, the flow rate of the bottom flushing water outlet 313 is equal to the flow rate of the brush ring water outlet 312. The third set time T3 is not less than 3 seconds.

[0056] After the third set time T3 has elapsed, the following water replenishment instruction and subsequent steps are executed.

[0057] The control board (not shown) issues a water replenishment instruction to cause the flushing solenoid valve 300 to close the bottom flushing water outlet 313 and maintain the open state of the brush ring water outlet 312 for a fourth set time T4.

[0058] Preferably, the fourth set time T4 is not less than 3 seconds.

[0059] In some embodiments of the present invention, the following steps are further included: the booster pump 301 maintains operation, including a pump constant speed stage and a pump deceleration stage; the fourth set time T4 includes the working time t41 of the pump constant speed stage and the working time t42 of the pump deceleration stage. The working time t41 of the pump constant speed stage is preferably not greater than 3 seconds, and the working time t42 of the pump deceleration stage is preferably not greater than 1 second.

[0060] After the fourth set time T4 has elapsed, the control board issues a stop flushing instruction to the flushing assembly.

[0061] The present invention also proposes an intelligent toilet, including a control board (not shown), a ceramic toilet 20, and a flushing assembly 30. The barrel body of the ceramic toilet is provided with a bottom flushing port 201 and a brush ring port 202.

[0062] The flushing assembly 30 includes a water storage tank 301, a booster pump 301, a flushing solenoid valve 300, a brush ring water outlet pipe 303 communicating with the brush ring port 202, and a bottom flushing water outlet pipe 304 communicating with the bottom flushing port 201.

[0063] The control board is signal-connected to the booster pump 301 and the flushing solenoid valve 300 of the flushing assembly 30 and can implement each step of the flushing method of the above-mentioned flushing assembly.

[0064] In some embodiments of the present invention, the electric toilet further includes a water pressure sensor 302 provided upstream of the flushing solenoid valve 300 for real-time detecting the water pressure and feeding it back to the control board to dynamically adjust the second set time T2.

[0065] Through the technical solution of the present invention, during the entire flushing process, the control board executes a strong flushing instruction, and a large flow of water is distributed to the bottom flushing water outlet by the booster pump in a short time. Then, the control board executes a washing and flushing instruction, and water is provided to both the bottom flushing water outlet and the brush ring water outlet simultaneously. In this way, the accumulated water in the water seal of the ceramic toilet can quickly form a siphon to carry away dirt, and at the same time, the water volume can be replenished in a timely manner. There is basically a certain amount of liquid in the water seal of the toilet, avoiding the formation of a cavity in the water seal of the toilet. In this way, the water in the water seal can buffer the liquid ejected from the bottom flushing water outlet, preventing the water flow from directly hitting the wall surface, thereby achieving the purpose of noise reduction. In addition, according to different flushing stages, the flow rate is gradually changed by the gradual rise and fall of the pump. When brushing the ring, it can avoid the sudden ejection of the gas remaining in the flushing component at the beginning, resulting in too large a liquid ejection speed and splashing, and also avoid the occurrence of a large negative pressure water hammer after the flushing ends, thereby reducing the probability of abnormal noise.

[0066] The above-described embodiments and design examples only represent several implementation manners of the present invention. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A flushing method for an intelligent toilet equipped with a flushing solenoid valve. The intelligent toilet includes a control board, a ceramic toilet bowl, and a flushing assembly. The ceramic toilet bowl is provided with a bottom flushing port and a brush ring port. The flushing assembly includes a booster pump, a flushing solenoid valve, a brush ring outlet pipe communicating with the brush ring port, and a bottom flushing outlet pipe communicating with the bottom flushing port. The water inlet end of the booster pump is communicated with a water source, the water drainage end of the booster pump is communicated with the water inlet pipe of the flushing solenoid valve, the brush ring water outlet of the flushing solenoid valve is communicated with the brush ring outlet pipe, and the bottom flushing water outlet of the flushing solenoid valve is communicated with the bottom flushing outlet pipe. It is characterized in that, The flushing method includes the following instructions: S1 The control board issues a brush ring instruction to drive the flushing solenoid valve to open the brush ring water outlet and close the bottom flushing water outlet for a first set time T1; S2 The control board issues a strong flushing instruction to drive the flushing solenoid valve to open the bottom flushing water outlet and close the brush ring water outlet, and the booster pump operates for a second set time T2, and the value range of the second set time T2 is 1.5 seconds - 3 seconds; S3 The control board issues a washing flushing instruction to drive the flushing solenoid valve to open the bottom flushing water outlet and the brush ring water outlet, and the booster pump operates for a third set time T3; S4 The control board issues a water replenishment instruction to drive the flushing solenoid valve to close the bottom flushing water outlet and maintain the opening state of the brush ring water outlet for a fourth set time T4; S5 After passing the fourth set time T4, the control board issues a stop flushing instruction to the flushing assembly.

2. The flushing method of the intelligent toilet provided with a flushing solenoid valve according to claim 1, characterized in that The control board issuing the brush ring instruction includes: the booster pump starts to operate, and the first set time T1 includes the working time t11 of the pump speed-up stage and the working time t12 of the pump steady-speed stage.

3. The flushing method of the intelligent toilet provided with a flushing solenoid valve according to claim 2, characterized in that The first set time T1 is not less than 5 seconds, and the working time t11 of the pump speed-up stage is not more than 1 second.

4. The flushing method of the intelligent toilet provided with a flushing solenoid valve according to claim 1, characterized in that, The flushing assembly further includes a water pressure sensor provided upstream of the flushing solenoid valve, and this water pressure sensor is used to sense the pressure P of the water flow entering the water inlet pipe of the flushing solenoid valve. The control board dynamically sets the strong flushing time T2 (1.5 - 3 seconds) based on the pressure P detected by the water pressure sensor, and the second set time T2 is inversely proportional to the pressure P value. Specifically: - When P≥0.6MPa, T2 = 1.5 - 2 seconds; - When 0.2MPa≤P<0.6MPa, T2 = 2 - 2.5 seconds; - When P<0.2MPa, T2 = 2.5 - 3 seconds.

5. The flushing method of the intelligent toilet provided with a flushing solenoid valve according to claim 1, characterized in that, The control board issuing the water replenishment instruction includes: the booster pump maintains operation, and the fourth set time T4 includes the working time t41 of the pump steady-speed stage and the working time t42 of the pump speed-down stage.

6. The flushing method of the intelligent toilet provided with a flushing solenoid valve according to claim 5, characterized in that, The working time t41 of the pump steady-speed stage is not more than 3 seconds, and the working time t42 of the pump speed-down stage is not more than 1 second.

7. An intelligent toilet, comprising a control board, a ceramic toilet bowl, and a flushing assembly. The flushing assembly includes a booster pump, a flushing solenoid valve, a brush ring outlet pipe, and a bottom flushing outlet pipe, characterized in that, The control board is signal-connected to the booster pump and the flushing solenoid valve, and is used to execute the flushing method according to any one of claims 1 to 6.

8. The intelligent toilet according to claim 7, characterized in that, It further includes a water pressure sensor, which is arranged upstream of the water inlet pipe of the flushing solenoid valve, and is used to detect the water pressure in real time and feedback it to the control board to dynamically adjust the second set time T2.

9. The intelligent toilet according to claim 8, characterized in that, The water pressure sensor is connected to the water inlet pipe of the flushing solenoid valve by means of a hose, screwing or clamping, or is integrated with the flushing solenoid valve into an integral structure.

10. The intelligent toilet according to claim 7, wherein The control board adjusts the operating speed of the booster pump through a Pulse Width Modulation (PWM) signal to achieve flow control in the pump speed-up, steady-speed and speed-down stages.

Citation Information

Patent Citations

  • A water appliance for measuring water pressure and monitoring water leakage, an Internet of Things system, and a working method.

    CN115183155B