A flushing control method of a smart toilet and a smart toilet

Abstract

The application discloses a flushing control method of an intelligent closestool and the intelligent closestool. The flushing control method comprises the following steps: controlling a water pump motor to rotate in a second direction, so that the intelligent closestool enters a washing mode; controlling the water pump motor to rotate in a first direction, so that the intelligent closestool enters a drainage mode; or: controlling the water pump motor to rotate in the second direction, so that the intelligent closestool enters the washing mode; controlling the water pump motor to rotate in the first direction, so that the intelligent closestool enters the drainage mode and an assisting flushing mode; wherein the drainage mode is that a water pump drives a drainage mechanism to open a drainage base, and water is flushed to the bottom of a sitting cavity; the washing mode is that water is flushed to the upper part of the sitting cavity through a washing pipeline; and the assisting flushing mode is that water is flushed to the bottom of the sitting cavity through an assisting flushing pipeline. The water pump motor is reversely rotated, so that the washing and flushing are realized in time-sharing water outlet, the control is simple and convenient, and the structure is simple.

Description

Technical Field

[0001] This invention relates to the field of bathroom technology, and in particular to a flushing control method for an intelligent toilet and an intelligent toilet. Background Technology

[0002] Current smart toilet designs require washing and flushing. Washing is controlled by a scrubbing pump to clean the toilet bowl walls, while flushing uses a bottom-flush pump to remove waste. Additionally, to enhance the flushing effect, a booster pump is sometimes added. Because multiple pumps are used, the required space is large, and the control system is complex.

[0003] To overcome the aforementioned problems, invention patent CN115262714A discloses an integrated water fitting with a dual-outlet micro-pump, including a housing, a drainage mechanism, a dual-outlet micro-pump, and a drainage base. The dual-outlet micro-pump splits the water source into two paths, one for drainage and the other for washing. Through its integrated design, the structure is simple and can be used in tankless, small-space sunken smart toilets. However, some existing smart toilets require a washing mechanism that involves washing followed by flushing, meaning the washing and drain outlets must supply water at different times. Existing integrated water fittings, however, supply water simultaneously to both the washing and drain outlets, failing to meet the requirement of timed water supply. Summary of the Invention

[0004] The purpose of this invention is to provide a flushing control method for an intelligent toilet and an intelligent toilet in general. It uses a single water pump to meet the time-sharing water supply needs of multiple modes of the toilet, and the control is simple and convenient with a minimalist structure.

[0005] To achieve the above objectives, this invention discloses a flushing control method for a smart toilet. The smart toilet includes a water pump, a drainage mechanism, and a drainage base. The water pump has multiple water outlets, and the smart toilet is equipped with a washing pipe and / or an auxiliary flushing pipe. The water pump motor can rotate in a first direction or a second direction. The flushing control method includes the following steps:

[0006] b. Control the water pump motor to rotate in the second direction to put the smart toilet into the washing mode, and control the water pump motor to rotate in the first direction to put the smart toilet into the draining mode; or: control the water pump motor to rotate in the second direction to put the smart toilet into the washing mode, and control the water pump motor to rotate in the first direction to put the smart toilet into the draining mode and the flushing mode.

[0007] The drainage mode involves a water pump driving the drainage mechanism to open the drainage base and flush the bottom of the toilet bowl; the washing mode involves water flowing from the washing pipe to flush the top of the toilet bowl; the assisted flushing mode involves water flowing from the assisted flushing pipe to assist flushing the bottom of the toilet bowl; when the first direction is clockwise, the second direction is counterclockwise; when the first direction is counterclockwise, the second direction is clockwise.

[0008] Furthermore, the water pump outlet includes a drain outlet and a washing outlet, or simultaneously includes a drain outlet, a washing outlet, and an auxiliary flushing outlet. When the water pump motor is controlled to rotate in the second direction to put the smart toilet into the washing mode, the water flow mainly flows out along the washing outlet, and the flow rate of the washing outlet is greater than 12L / min, while the head of the drain outlet is less than 2m. When the water pump motor is controlled to rotate in the first direction to put the smart toilet into the drain mode, or into both the drain mode and the auxiliary flushing mode, the head of the drain outlet is greater than 3m, while the flow rate of the washing outlet is less than 4L / min.

[0009] Preferably, when controlling the smart toilet to enter the drainage mode and the flushing mode, the two modes are performed simultaneously or sequentially.

[0010] Furthermore, before step b, the following steps are also included: a1 receives the start command and program command, and obtains the corresponding water pump motor direction command z1 according to the program command; determines whether the current water pump motor speed is 0. If the water pump motor speed is 0, then directly proceeds to step b, and controls the smart toilet to enter the corresponding mode according to the water pump motor direction command z1; if the current water pump motor speed is not 0, the direction command z1 is first placed in the waiting queue; when the water pump motor speed is detected to be 0, then proceeds to step b, and executes the direction command z1 in the waiting queue.

[0011] In other embodiments, before step b, the following steps are also included: a2 receives a start command and a program command, and obtains the corresponding water pump motor direction command z1 according to the program command; determines whether the current water pump motor speed is 0. If the water pump motor speed is 0, then directly proceeds to step b, and controls the smart toilet to enter the corresponding mode according to the water pump motor direction command z1; if the current water pump motor speed is not 0, then brake control is performed to make the water pump motor speed 0 before proceeding to step b.

[0012] The program instructions include one or more of the following:

[0013] S1. Normal Drainage: The smart toilet enters drainage mode.

[0014] S2. Assisted Drainage: The smart toilet simultaneously enters both drainage mode and flushing mode.

[0015] S3. Washing Water Discharge: The smart toilet enters the washing mode.

[0016] S4. Regular combined flush: The smart toilet first enters the washing mode, and then enters the drainage mode.

[0017] S5. Assisted flushing: The smart toilet first enters the washing mode, then the drainage mode and the assisted flushing mode.

[0018] This invention also discloses a smart toilet, controlled by the aforementioned flushing control method. The smart toilet includes: a toilet body, a water inlet valve, and an integrated water fitting. The toilet body has a toilet seat and a water receiving chamber. A washing hole is provided on the wall of the toilet seat, and the washing hole is connected to a washing pipe. The water inlet valve and the integrated water fitting are located within the water receiving chamber, and the water inlet valve is connected to an external water supply pipe. The integrated water fitting includes a housing, a drainage mechanism, a water pump, and a drainage base. The water pump and drainage mechanism are installed inside the housing, and the drainage base is installed below the housing. The housing has a water inlet / outlet port for water supply. The water pump includes a pump body, a pump motor, and an impeller. The pump body has a pump chamber, an inlet, and an outlet. The inlet connects to the pump chamber. The outlet includes at least one first outlet and at least one second outlet. The orientation of the main outlet corresponding to the first outlet is the direction of water flow when the motor rotates in a first direction, and the orientation of the main outlet corresponding to the second outlet is the direction of water flow when the motor rotates in a second direction. The first and second directions are opposite. Both the first and second outlets include a main outlet and a secondary outlet. The opening of the main outlet is parallel to the tangent direction of the outer edge of the pump chamber, or at an angle α ≤ 20°. Both ends of the main outlet and the secondary outlet are connected, with the main outlet connecting to the pump chamber and the secondary outlet connecting to the corresponding main outlet. The connection point between the secondary outlet and the corresponding main outlet is located on the side of the main outlet closest to the connection end of the pump chamber. The impeller is built into the pump chamber, and the pump motor drives the impeller to rotate. The main outlet corresponding to the first outlet is connected to the drainage mechanism, and the main outlet corresponding to the second outlet is connected to the washing pipe. The auxiliary outlets corresponding to the first and second outlets are connected to the inner cavity of the housing.

[0019] Preferably, the cross-sectional area of ​​the main port is larger than that of the secondary port, the depth of the pump chamber is greater than the diameter of the main port, and the opening orientation of the secondary port is set at an angle b to the opening orientation of the corresponding main port, wherein the angle is 30°≤b≤150°.

[0020] In some embodiments, there are two water outlets: a first water outlet and a second water outlet. The main opening of the first water outlet is a drain outlet, which is connected to a drainage mechanism. The main opening of the second water outlet is a washing outlet, which is connected to a washing pipe outside the housing.

[0021] In some embodiments, an auxiliary flushing pipe is also included; the water outlet is provided with three outlets, including two first outlets and one second outlet, the main openings of the two first outlets being a drain outlet and an auxiliary flushing outlet, respectively, the drain outlet being connected to a drainage mechanism, the auxiliary flushing outlet being connected to one end of the auxiliary flushing pipe, and the other end of the auxiliary flushing pipe being connected to the drain outlet of the drainage base; the main opening of the second outlet is a washing outlet, and the washing outlet is connected to a washing pipe outside the housing.

[0022] In other embodiments, a flushing aid pipe and a flow distribution assembly are also included. The flow distribution assembly has a through-flow inlet and at least two flow branch outlets. Two outlets are provided: a first outlet and a second outlet. The main port of the first outlet is connected to the flow inlet. The two flow branch outlets are a drain outlet and a flushing aid outlet. The drain outlet is connected to a drainage mechanism, and the flushing aid outlet is connected to one end of the flushing aid pipe. The other end of the flushing aid pipe is connected to the drain outlet of the drainage base. The main port of the second outlet is a washing outlet, which is connected to a washing pipe outside the housing.

[0023] Preferably, the flushing aid pipe includes an inverted U-shaped pipe and a flushing aid pipe connected in sequence. One end of the inverted U-shaped pipe is connected to the flushing aid port, and the other end is connected to the flushing aid pipe. The top of the inverted U-shaped pipe is provided with an air hole, and the air hole is higher than the set working water level in the receiving water chamber. The flushing aid pipe is connected to the drainage base, or the flushing aid pipe and the drainage base are integrally formed. The end of the flushing aid pipe bends and extends from the drainage outlet of the drainage base. The flushing aid pipe is a Venturi tube, and the diameter of the Venturi tube gradually decreases.

[0024] Preferably, at least one guide is provided on the inner wall of the pump chamber, and the guide is provided corresponding to at least one of the water outlets.

[0025] The guide is located on the rear side of the outlet in the direction of rotation. The front end face of the guide is set at an angle to the corresponding outlet. The outer surface of the guide is an arc-shaped guide surface. The thickness of the front end face of the arc-shaped guide is greater than the thickness of the rear end face.

[0026] The pump body includes a first pump casing and a second pump casing, which are detachably connected and form a pump cavity together. The inlet and outlet are both located on the first pump casing. The pump motor is detachably connected to the second pump casing, or the second pump casing is integrally formed with the pump motor housing. The pump inlet is positioned directly opposite the water passage hole. A filter cover is provided on the water passage hole, and a baffle plate is provided on the side of the filter cover near the drainage base.

[0027] The shell has fasteners on both sides, each fastener including a pressure plate and a buckle plate. The lower end of the pressure plate is connected to or integrally formed with the shell, the upper end of the pressure plate is suspended, the upper end of the buckle plate is connected to or integrally formed with the middle of the pressure plate, and the lower end of the buckle plate is engaged with the drainage base.

[0028] The drainage mechanism is detachably connected to the housing. The first outlet of the water pump is inserted into the drainage mechanism. The drainage mechanism is also provided with a first positioning stop. The pump body is provided with a second positioning stop that is inserted into or snapped into the first positioning stop.

[0029] The drainage mechanism includes a valve body, a return spring, a piston, and a sealing rubber. The upper end of the piston is slidably connected to the inner cavity of the valve body, and a drainage chamber is formed between the piston and the valve body. The main port corresponding to the first outlet is connected to the drainage chamber. The valve body and / or the piston are provided with vent holes that connect to the drainage chamber. The lower end of the piston extends out of the valve body and is connected to the sealing rubber. The sealing rubber is sealed and adapted to the drainage outlet of the drainage base. The return spring is disposed in the inner cavity of the valve body and is located above the piston. The upper end of the return spring abuts against the valve body, and the lower end of the return spring abuts against the piston.

[0030] Based on the above solution, the present invention has the following beneficial effects: The present invention achieves time-sharing water output from different outlets of the water pump by controlling the forward and reverse rotation of the water pump motor, making control simple and convenient. Furthermore, the present invention has high integration, a simple structure, fewer electrical components, fewer potential failure points, and is also more energy-efficient. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the control circuit in Example 1.

[0032] Figure 2 This is a schematic diagram of the DC / AC unit in Embodiment 1.

[0033] Figure 3 This is a schematic diagram of the smart toilet in Example 3.

[0034] Figure 4 This is a schematic diagram of the integrated water fitting (three outlets) in Example 3.

[0035] Figure 5 This is a schematic diagram from another perspective of the integrated water fitting (three outlets) in Example 3.

[0036] Figure 6 This is a schematic diagram of the concealed upper shell in Example 3 (three outlets).

[0037] Figure 7 This is a schematic diagram of another perspective after the upper shell of Embodiment 3 (three outlets) is hidden.

[0038] Figure 8 This is a schematic diagram of a four-sided shell.

[0039] Figure 9 This is a schematic diagram of the drainage base.

[0040] Figure 10 This is a schematic diagram of the drainage mechanism.

[0041] Figure 11 This is a cross-sectional view of the drainage mechanism.

[0042] Figure 12 This is a schematic diagram of a water pump with three outlets.

[0043] Figure 13 for Figure 12 A schematic diagram from another perspective.

[0044] Figure 14 for Figure 12 An exploded view of the water pump.

[0045] Figure 15 for Figure 14 A schematic diagram of the first pump casing.

[0046] Figure 16 for Figure 15 A cross-sectional view (a diagram showing the water flow direction when the pump motor rotates clockwise).

[0047] Figure 17 for Figure 15 A cross-sectional view (a diagram showing the water flow direction when the pump motor rotates counterclockwise).

[0048] Figure 18 This is a schematic diagram of a water pump with two outlets.

[0049] Figure 19 for Figure 18 A schematic diagram of the first pump casing.

[0050] Figure 20 for Figure 19 A sectional view of [the object].

[0051] Figure 21 This is a schematic diagram of the first pump casing in Example 4.

[0052] Figure 22 for Figure 21 A sectional view.

[0053] Figure 23 This is a schematic diagram of the integrated water fitting in Example 5 (with the upper shell hidden).

[0054] Figure 24 This is a schematic diagram of another integrated water fitting in Example 5 (with the upper shell hidden).

[0055] Explanation of symbols for main components:

[0056] Upper shell 11, lower shell 12, filter cover 13, baffle plate 14, pressure plate 15, buckle plate 16, first hook 17, second hook 18, water passage hole 19; drain base 20, drain inlet 21, drain outlet 22, first retaining ring 23; valve body 31, piston 32, water sealing rubber 33, return spring 34, drain liquid chamber 35, vent hole 36, rope control device 37, wire control pull rope 38, first positioning stop 39, second retaining ring 3a, insertion port 3b; first pump housing 41, 411: connecting frame, second pump housing 42, pump chamber 43 Water inlet 44, drain outlet 45, first auxiliary inlet 46, washing inlet 47, second auxiliary inlet 48, flushing aid inlet 49, third auxiliary inlet 4a, reference tangent 4b, second positioning stop 4c, flushing aid pipe 50, inverted U-shaped pipe 51, flushing aid pipe 53, air hole 54; guide component 6, arc-shaped guide surface 61; water pump motor 66, motor shaft 661, impeller 7, toilet body 8, toilet chamber 81, water receiving chamber 82, washing hole 83, washing pipe 84, flow distribution component 85, flow inlet 851, flow distribution outlet 852, water inlet valve 9. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0058] Example 1

[0059] This invention discloses a flushing control method for an intelligent toilet. For example... Figure 3 The intelligent toilet of the present invention is equipped with a water pump, a drainage mechanism, and a drainage base. The water pump has multiple water outlets. The intelligent toilet is equipped with a washing pipe 84 or a flushing aid pipe 50, or more preferably, both a washing pipe 84 and a flushing aid pipe 50 are provided. The water pump motor can rotate in a first direction or a second direction. The toilet body 8 has a toilet seat cavity 81 and a water receiving cavity 82. The water pump, drainage mechanism, and drainage base are located in the water receiving cavity 82.

[0060] The three modes of a smart toilet are:

[0061] 1. Drainage mode: The water pump drives the drainage mechanism to open the drainage base 20 and flush the bottom of the toilet chamber 81.

[0062] 2. Washing mode: The toilet chamber 81 is provided with a washing hole 83 on the wall of the chamber. The washing hole 83 is connected to the washing pipe 84. Water from the washing pipe 84 flushes the top of the toilet chamber 81 of the toilet body.

[0063] 3. Assisted flushing mode: This mode connects to the assisted flushing pipe 50, and water flows out through the assisted flushing pipe 53 to assist flushing the bottom of the toilet chamber 81.

[0064] One implementation method is as follows: the flushing modes of the smart toilet include a drainage mode and a washing mode. The main principle steps of the flushing control method are: controlling the water pump motor to rotate in the second direction to put the smart toilet into the washing mode; controlling the water pump motor to rotate in the first direction to put the smart toilet into the drainage mode.

[0065] Another implementation method is as follows: the smart toilet's flushing modes include drainage mode, assisted flushing mode, and washing mode, for a total of three modes. The main principle and steps of the flushing control method are: controlling the water pump motor to rotate in the second direction, causing the smart toilet to enter the washing mode; controlling the water pump motor to rotate in the first direction, causing the smart toilet to enter the drainage mode and assisted flushing mode. When controlling the water pump motor to rotate in the first direction to enter the drainage mode and assisted flushing mode, the two modes can be performed simultaneously or sequentially.

[0066] When the first direction is clockwise (forward direction of the water pump motor), the second direction is counterclockwise (reverse direction of the water pump motor); when the first direction is counterclockwise, the second direction is clockwise.

[0067] The water pump outlet includes a drain outlet and a wash outlet, or simultaneously includes a drain outlet, a wash outlet, and an auxiliary flushing outlet. When the water pump motor is controlled to rotate in the second direction, putting the smart toilet into the wash mode, the water flow mainly flows out through the wash outlet, and the flow rate at the wash outlet is greater than 12L / min, while the head of the drain outlet is less than 2m. When the water pump motor is controlled to rotate in the first direction, putting the smart toilet into the drain mode, or into both the drain and auxiliary flushing modes, the water flow mainly flows out through the drain outlet, or mainly through both the drain outlet and the auxiliary flushing outlet, and the head of the drain outlet is greater than 3m, while the flow rate at the wash outlet is less than 4L / min.

[0068] The structure of the flushing control circuit of a smart toilet is as follows: Figure 1 As shown, it includes an AC / DC unit, an MCU module, and a DC / AC unit, a signal detection module, a drive circuit, and a back EMF detection circuit connected to the MCU module.

[0069] The input of the AC / DC unit is connected to the power supply, and the output of the AC / DC unit is connected to the water pump motor via the DC / AC unit. The input of the back EMF detection circuit is connected to the output of the DC / AC unit, and the drive circuit is connected to the DC / AC unit. The signal detection module detects the start signal and steering control signal and transmits them to the MCU module. The back EMF detection circuit collects the back EMF from the water pump and transmits it to the MCU module. After receiving the start signal and steering control signal, the MCU module sends a control signal to the drive circuit. The drive circuit receives the control signal from the MCU module, amplifies it, and transmits it to the DC / AC unit (MOS transistor control terminal). The DC / AC unit changes the operating logic of the MOS transistor, thereby controlling the water pump motor to rotate in the forward or reverse direction.

[0070] The input of the AC / DC unit is connected to the power supply to rectify single-phase AC power into DC power. The output of the AC / DC unit is connected to the water pump motor via the DC / AC unit, which inverts the DC power into three-phase output to power the water pump motor. The input of the back EMF detection circuit is connected to the output of the DC / AC unit. The back EMF detection circuit is used to detect whether the water pump motor speed is 0, to ensure that the water pump motor can reliably stop.

[0071] like Figure 2As shown, the DC / AC unit includes a first MOSFET M1, a second MOSFET M2, a third MOSFET M3, a fourth MOSFET M4, a fifth MOSFET M5, a sixth MOSFET M6, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, an output port U, an output port V, and an output port W. The drive control unit 24 has a first control terminal HU, a second control terminal HV, a third control terminal HW, a fourth control terminal LU, a fifth control terminal LV, and a sixth control terminal LW. The drains of the first MOSFET M1, the second MOSFET M2, and the third MOSFET M3 are all connected to the positive terminal of the AC / DC unit 22. The gate of the first MOSFET M1 is connected to the first control terminal HU and one end of the first resistor R1. The source of the first MOSFET M1 is connected to the other end of the first resistor R1, the output port U, and the drain of the fourth MOSFET M4. The second MOSFET M1... The gate of S-MOSFET M2 is connected to the second control terminal HV and one end of the second resistor R2. The source of the second MOSFET M2 is connected to the other end of the second resistor R2, the output port V, and the drain of the fifth MOSFET M5. The gate of the third MOSFET M3 is connected to the third control terminal HW and one end of the third resistor R3. The source of the third MOSFET M3 is connected to the other end of the third resistor R3, the output port W, and the drain of the sixth MOSFET M6. The gate of the fourth MOSFET M4 is connected to the fourth control terminal LU and one end of the fourth resistor R4. The gate of the fifth MOSFET M5 is connected to the fifth control terminal LV and one end of the fifth resistor R5. The gate of the sixth MOSFET M6 is connected to the sixth control terminal LW and one end of the sixth resistor R6. The other ends of the fourth resistor R4, the fifth resistor R5, and the sixth resistor R6, the source of the fourth MOSFET M4, the source of the fifth MOSFET M5, and the source of the sixth MOSFET M6 are grounded.

[0072] When HU, HV, and HW are simultaneously input at low levels, and M1, M2, and M3 are simultaneously in the off state, then LU, LV, and LW simultaneously input PWM signals with fixed frequency and varying duty cycles, thus achieving soft braking of the water pump motor. The PWM signal model is: D = D0 + n * Ts * D_step, where: D0 is the initial duty cycle, D_step is the duty cycle increment step, n is the cycle time of the digital controller MCU, and Ts is the period of the digital controller MCU, which is the main component in the drive control unit 24. If M4, M5, and M6 are kept simultaneously on for an extended period, hard braking of the water pump motor can be achieved. Hard braking allows the water pump motor to stop faster, but the bus voltage V_BUS is prone to becoming too high. While soft braking slows the water pump motor down compared to hard braking, it avoids this issue. The choice between soft and hard braking depends on the actual application scenario of the water pump.

[0073] In addition, the forward and reverse rotation control of the water pump motor can be achieved by controlling the operation logic of the MOS transistor in the DC / AC unit to swap the phase sequence of two phases of the output three-phase UVW voltage signal. For example, when the water pump motor rotates forward, the V phase current lags the U phase current by 120°, and the W phase current lags the V phase current by 120° (also the W phase current lags the U phase current by 240°). When the water pump motor needs to rotate in reverse, the W phase current lags the U phase current by 120°, and the V phase current lags the W phase current by 120° (also the V phase current lags the U phase current by 240°).

[0074] The above-described control circuit can be used to achieve forward and reverse rotation control and braking control of the water pump. Of course, those skilled in the art can configure other control circuits according to the requirements of forward and reverse rotation control and braking control based on this invention.

[0075] The overall control steps of the flushing control method of the present invention are as follows:

[0076] (1) Receive the start command and program command, and obtain the corresponding direction command z1 of the water pump motor according to the program command.

[0077] The program instructions in this step may include one or more of the following:

[0078] S1. Normal Drainage: The smart toilet enters drainage mode.

[0079] S2. Assisted Drainage: The smart toilet simultaneously enters both drainage mode and flushing mode.

[0080] S3. Washing Water Discharge: The smart toilet enters the washing mode.

[0081] S4. Regular combined flush: The smart toilet first enters the washing mode, and then enters the drainage mode.

[0082] S5. Assisted flushing: The smart toilet first enters the washing mode, then the drainage mode and the assisted flushing mode.

[0083] In this embodiment, the water pump motor is set to rotate in the forward direction to put the smart toilet into the drainage and flushing modes, and to rotate in the reverse direction to put the smart toilet into the washing mode. Therefore, when the program instruction is set to S5: "Assisted Comprehensive Flushing", the MCU module, based on program instruction S5, can determine the direction instruction z1 of the water pump motor, which is to rotate in the reverse direction for m seconds, and then rotate in the forward direction for n seconds.

[0084] (2) Determine whether the current speed of the water pump motor is 0. If the speed of the water pump motor is 0, proceed directly to step (3) and control the smart toilet to enter the corresponding mode according to the direction command z1 of the water pump motor. If the current speed of the water pump motor is not 0, put the direction command z1 into the waiting queue first; when the speed of the water pump motor is detected to be 0, proceed to step b and execute the direction command z1 in the waiting queue.

[0085] (3) Control the water pump motor to rotate in the reverse direction for m seconds according to the direction command z1, and then rotate in the forward direction for n seconds to complete the corresponding program command. In this step, the reverse rotation is switched to the forward rotation. If the impeller inertia is small, the braking function can be used to start the reverse operation directly. If the impeller inertia is large, it is better to brake first and then switch the direction.

[0086] The braking control method is as follows: perform braking once and collect back electromotive force. If the back electromotive force is 0, the braking is completed; if the back electromotive force is not 0, perform braking control again until the back electromotive force is 0.

[0087] Example 2

[0088] The difference between this embodiment and Embodiment 1 lies in the overall control steps. The overall steps of this embodiment are as follows:

[0089] (1) Receive the start command and program command, and obtain the corresponding direction command z1 of the water pump motor according to the program command.

[0090] The program instructions in this step may include one or more of the following:

[0091] S1. Normal Drainage: The smart toilet enters drainage mode.

[0092] S2. Assisted Drainage: The smart toilet simultaneously enters both drainage mode and flushing mode.

[0093] S3. Washing Water Discharge: The smart toilet enters the washing mode.

[0094] S4. Regular combined flush: The smart toilet first enters the washing mode, and then enters the drainage mode.

[0095] S5. Assisted flushing: The smart toilet first enters the washing mode, then the drainage mode and the assisted flushing mode.

[0096] In this embodiment, the water pump motor is set to rotate in the forward direction to put the smart toilet into the drainage and flushing modes, and to rotate in the reverse direction to put the smart toilet into the washing mode. Therefore, when the program instruction is set to S4: "Regular Integrated Flushing", the MCU module, based on program instruction S5, can determine the water pump motor's direction instruction z1, which is to rotate in the reverse direction for m seconds, then rotate in the forward direction for n seconds.

[0097] (2) Determine whether the current speed of the water pump motor is 0. If the speed of the water pump motor is 0, proceed directly to step (3) and control the smart toilet to enter the corresponding mode according to the direction command z1 of the water pump motor. If the current speed of the water pump motor is not 0, brake control is first performed to make the speed of the water pump motor 0 before proceeding to step (3).

[0098] The braking control method is as follows: perform braking once and collect back electromotive force. If the back electromotive force is 0, the braking is completed; if the back electromotive force is not 0, perform braking control again until the back electromotive force is 0.

[0099] (3) Control the water pump motor to rotate in the opposite direction for m seconds according to the steering command z1, and then rotate in the forward direction for n seconds to complete the corresponding program command.

[0100] In this step, the reverse rotation is switched to the forward rotation. If the impeller inertia is small, the reverse rotation can be started directly without using the braking function. If the impeller inertia is large, it is better to brake first and then switch the direction of rotation. The braking control method is the same as in step (2).

[0101] Example 3

[0102] This embodiment discloses a smart toilet, which includes a toilet body 8, a water inlet valve 9, and an integrated water fitting.

[0103] The toilet body 8 has a sitting chamber 81 and a water receiving chamber 82. The water receiving chamber 82 can be a ceramic water tank of a regular toilet, a submerged water chamber of a sinking toilet, or a plastic water tank. The inlet valve 9 and integrated water fittings are located inside the water receiving chamber 82. The inlet valve 9 is connected to an external water supply pipe and is used to control the water supply to the water receiving chamber 82.

[0104] like Figures 4-7 As shown, the integrated water fitting of this embodiment includes a housing, a drainage mechanism, a water pump, and a drainage base 20. The water pump and drainage mechanism are installed in the inner cavity of the housing, and the drainage base 20 is installed below the housing.

[0105] Combination Figure 8 As shown, the housing includes an upper shell 11 and a lower shell 12, which are detachably connected by screws or clips. The upper shell 11 and lower shell 12 facilitate the installation of the drainage mechanism and water pump. An internal cavity is formed between the upper shell 11 and lower shell 12 to accommodate the drainage mechanism and water pump, and this cavity can also store water. A water inlet 19 is provided at the bottom of the lower shell 12 to ensure the water pump does not run dry. A filter cover 13 is provided on the water inlet 19 to filter out impurities and prevent clogging of the integrated water system. Additionally, a baffle 14 is provided on the side of the filter cover 13 near the drainage base 20 to prevent the drainage from the drainage base 20 and the water pump from interfering with each other.

[0106] Give Figure 5 , 9As shown, the upper sidewall of the drainage base 20 has several drainage inlets 21, and its lower end is a drainage outlet 22. Fasteners are provided on both sides of the housing, including a pressure plate 15 and a snap-fit ​​plate 16. The lower end of the pressure plate 15 is connected to the housing (e.g., by screws or snap-fit) or integrally formed, while the upper end of the pressure plate 15 is suspended. The upper end of the snap-fit ​​plate 16 is connected to the middle of the pressure plate 15 (e.g., by screws or snap-fit) or integrally formed, and the lower end of the snap-fit ​​plate 16 is snapped onto the upper outer edge of the drainage base 20. For example, a first hook 17 is provided at the lower end of the snap-fit ​​plate 16, and a first retaining ring 23 is provided at the upper outer edge of the drainage base 20 to engage with the first hook 17. With this setup, simply press the suspended end of the pressure plate 15 towards the housing to quickly separate the housing from the drain base 20. When assembling the drain base 20 with the lower housing 12, insert the upper end of the drain base 20 into the bottom of the lower housing 12 and snap the lower end of the buckle plate 16 into the upper outer edge of the drain base 20. Installation is very convenient.

[0107] Combination Figure 10 , Figure 11 As shown, the drainage mechanism includes a valve body 31, a return spring 34, a piston 32, and a sealing rubber 33. The valve body 31 is detachably connected to the lower shell 12. A second retaining ring 3a can be provided at the lower end of the valve body 31, and several second hooks 18 that engage with the second retaining ring 3a are provided on the upper shell 11. The upper end of the piston 32 is slidably connected in the inner cavity of the valve body 31, and a drainage chamber 35 is formed between the piston 32 and the valve body 31. Two sealing rings are provided at the top and bottom of the inner cavity of the valve body 31. The sealing rings can be sealed and adapted to the outer wall of the piston 32. The two sealing rings, the inner wall of the valve body 31, and the outer wall of the piston 32 constitute the drainage chamber 35. If water is injected into the drainage chamber 35, the piston 32 can be lifted. In addition, a vent hole 36 is provided on the valve body 31 and / or piston 32 to communicate with the drain chamber 35, so as to avoid air blockage and to drain the water in the drain chamber 35. As long as the outflow velocity of the vent hole 36 is lower than the inflow velocity of the drain chamber 35, the piston 32 can be lifted.

[0108] The lower end of piston 32 extends outside valve body 31 and can extend out of lower shell 12. Water-sealing rubber 33 is connected to the lower end of piston 32. Water-sealing rubber 33 is sealed and adapted to the drain outlet 22 of drain base 20. That is, when piston 32 moves down, water-sealing rubber 33 can seal and close the drain outlet 22 of drain base 20, while when piston 32 moves up, water-sealing rubber 33 can open the drain outlet 22 of drain base 20.

[0109] A return spring 34 is disposed within the inner cavity of the valve body 31 and is positioned above the piston 32. The upper end of the return spring 34 abuts against the valve body 31, and the lower end abuts against the piston 32. When the water pump pumps water into the drain chamber 35, the water pressure in the drain chamber 35 increases, and the piston 32 moves upward against the elastic force of the return spring 34. This causes the sealing rubber 33 to move away from the drain outlet 22 of the drain base 20, allowing the drain base 20 to open for drainage. When the water pump stops pumping water into the drain chamber 35, under the rebound force of the return spring 34, the water in the drain chamber 35 can flow out from the vent 36 and the water pump. The piston 32 moves downward and blocks the drain outlet 22 of the drain base 20.

[0110] To ensure the drainage mechanism remains controllable even in the event of a pump malfunction or power outage, it is equipped with a rope control device 37 and a wired pull rope 38. The rope control device 37 is located outside the valve body 31. One end of the wired pull rope 38 is connected to the rope control device 37, and the other end passes through the valve body 31 and connects to the piston 32. The rope control device 37 is existing technology and will not be described in detail. This configuration allows the drainage mechanism to operate in two modes: one is mechanical control of the drainage action via the wired control device, and the other is electrical control of the pump operation, thereby controlling the drainage mechanism's movement.

[0111] like Figures 12-17 As shown, the water pump includes a pump body, a pump motor 66, and an impeller 7. The pump body includes a first pump casing 41 and a second pump casing 42, which are detachably connected and form a pump cavity 43. An inlet 44 and at least two outlets are provided on the first pump casing 41. A connecting frame 411 is provided inside the inlet 44 of the first pump casing 41, and the end of the connecting frame 411 has an assembly hole 412. The pump motor 66 is fixedly connected to the impeller 7, and the pump motor shaft 661 is connected to the assembly hole 412 of the connecting frame 411. The inlet 44 communicates with the pump cavity 43. The impeller 7 is placed in the pump cavity 43, and the pump motor 66 drives the impeller to rotate. The pump motor 66 is detachably connected to the second pump casing 42, or the second pump casing 42 is integrally formed with the outer shell of the pump motor 66.

[0112] Each outlet includes a main outlet and a secondary outlet, which are connected to each other. The main outlet of each outlet is connected to the pump chamber 43, and the secondary outlet is connected to the main outlet. The connection position between the secondary outlet and the main outlet is located on the side of the main outlet near the connection end of the pump chamber.

[0113] like Figure 16As shown, a reference tangent Q is drawn along the edge of the pump chamber (circular cross-section). The direction of the reference tangent Q is the tangent direction. Therefore, the opening orientation of the main inlet (i.e., the direction of the main inlet's centerline) should be parallel to the tangent direction (a = 0°), or at a small angle α, where α ≤ 20°. The opening orientation of the secondary inlet corresponding to the main inlet (i.e., the direction of the secondary inlet's centerline) is perpendicular to or inclined to the opening orientation of the corresponding main inlet. If the inclination angle is b, then 30° ≤ b ≤ 150°. This configuration ensures that when rotating along the tangent direction, water flows from the main inlet and a small flow from the corresponding secondary inlet; when rotating against the tangent direction, all water flows from the secondary inlet, and no water flows from the main inlet. To ensure the water pressure or flow velocity at the main inlet, the cross-sectional area of ​​the main inlet must be greater than that of the secondary inlet, and the depth H of the pump chamber must not be less than the diameter of the main inlet. This configuration ensures the water pressure or flow velocity at the main inlet 17.

[0114] like Figure 15-17 As shown, in one embodiment, the water pump has three outlets, including two first outlets and one second outlet. The two first outlets have main ports corresponding to a drain outlet 45a and a flushing aid outlet 49, and secondary ports corresponding to a first secondary port 46 and a third secondary port 4a. The drain outlet 45a is connected to the drainage mechanism, and the flushing aid outlet 49 is connected to the flushing aid pipe 50. The other end of the flushing aid pipe 50 is connected to the drain outlet 22 of the drainage base 20. The second outlet has a main port corresponding to a washing port 47 and a secondary port corresponding to a second secondary port 48. The washing port 47 communicates with the washing pipe 84 outside the housing.

[0115] like Figure 16 As shown, when the impeller rotates clockwise, water mainly flows out from the drain port 45a and the flushing port 49 (high flow rate), while the scrubbing port 47 either does not discharge water or discharges water at a low flow rate. (That is, the head of the drain port 45a is greater than 3m, and the flow rate of the scrubbing port 47 is less than 4L / min). The first and third auxiliary ports do not discharge water or discharge water at a low flow rate, while the second auxiliary port discharges water at a low flow rate. Figure 17 As shown, when the impeller rotates counterclockwise, water mainly flows out from the scrubbing port 47 (high flow rate), while water does not flow from the drain port 45a or the auxiliary flushing port 49. (That is, the flow rate of the scrubbing port 47 is greater than 12 L / min, and the head of the drain port 45a is less than 2 m). The first auxiliary port 46 and the third auxiliary port 4a flow out water at a low flow rate, while the second auxiliary port 48 either does not flow out water or flows out water at a low flow rate.

[0116] In another embodiment, the water pump has only two outlets. These are a first outlet and a second outlet. In this case, the main inlet of the first outlet is the drain outlet 45a, and the main inlet of the second outlet is the scrubbing outlet 47. The water pump structure is as follows: Figures 18-19 As shown. Figure 20As shown, when the impeller rotates clockwise, water mainly flows out from the drain port 45a (high flow rate), while the scrubbing port 47 either does not discharge water or discharges at a low flow rate (i.e., the head of the drain port 45a is greater than 3m, and the flow rate of the scrubbing port 47 is less than 4L / min). The first auxiliary port discharges water at a low flow rate, and the second auxiliary port discharges water at a low flow rate. When the impeller rotates counterclockwise, water mainly flows out from the scrubbing port 47 (high flow rate), while the drain port 45a either does not discharge water or discharges water at a low flow rate (i.e., the flow rate of the scrubbing port 47 is greater than 12L / min, and the head of the drain port 45a is less than 2m). The first auxiliary port 46 discharges water at a low flow rate, and the second auxiliary port 48 either does not discharge water or discharges water at a low flow rate.

[0117] It should be noted that the attached diagrams in this case all illustrate the secondary outlets as low-flow-rate outlets. When the secondary outlet diameter is designed to be small, it is possible to prevent water from flowing from the secondary outlets; that is, when the impeller rotates counterclockwise, water flows from the first secondary outlet 46 and the third secondary outlet 4a, but not from the second secondary outlet 48. Thus, by controlling the forward and reverse rotation of the water pump motor 26, water can be alternately or staggered from the drain outlet 47 and the washing outlet 17. When the water pump is placed in the water chamber, all secondary outlets can be configured to connect to the water chamber, thus preventing water loss and minimizing the impact on the main outlet's flow rate. Of course, the secondary outlets can also be connected to other locations via pipes for continuous low-flow-rate water supply.

[0118] Combination Figure 5 , Figure 6 As shown, the flushing aid pipe includes an inverted U-shaped pipe 51 and a flushing aid pipe 53 connected in sequence. One end of the inverted U-shaped pipe 51 is connected to the flushing aid port 49, and the other end is connected to the flushing aid pipe 53. An air hole 54 is provided at the top of the inverted U-shaped pipe 51. The air hole 54 is higher than the set working water level in the receiving water chamber to prevent siphoning.

[0119] The flushing aid tube 53 is connected to the drain base 20, or the flushing aid tube 53 and the drain base 20 are integrally formed. The end of the flushing aid tube 53 is bent and extends from the drain outlet of the drain base 20 so that it is aligned with the drain channel of the smart toilet. The flushing aid tube is a Venturi tube with a gradually decreasing diameter to achieve a better flushing effect.

[0120] During assembly, the drain port 45 of the water pump is inserted into the valve body 31 of the drainage mechanism. A socket 3b can be provided on the valve body 31 to be inserted into the drain port 45, and the socket 3b is connected to the drainage chamber 35. At the same time, a first positioning stop 39 (such as a slot) is provided on the valve body 31 of the drainage mechanism, and a second positioning stop 4c (such as a plug block) is provided on the outside of the pump body to be inserted into or snapped into the first positioning stop 39. This arrangement facilitates the assembly of the drainage mechanism and the water pump.

[0121] In this embodiment, the three water outlets are connected as follows: drain outlet 45 is connected to the drainage mechanism to achieve drainage mode, while washing outlet 47 is connected to washing pipe 84, and flushing aid outlet 49 is connected to flushing aid pipe 50. Alternatively, there are two water outlets, where drain outlet 45 is connected to the drainage mechanism to achieve drainage mode, and washing outlet 47 is connected to washing pipe 84. The ends of the first auxiliary outlet 46, the second auxiliary outlet 48, and the third auxiliary outlet 4a are all connected to the receiving water cavity 82. That is, the present invention can achieve various water outlet configurations through the following settings, as shown in Table 1 below.

[0122] Table 1. Mode Control Methods of Smart Toilets

[0123]

[0124]

[0125] The smart toilet of this invention only requires controlling the forward and reverse rotation of the water pump motor 66 to realize the washing or flushing of the toilet in different time periods. The control is convenient and simple. Because the integrated water component structure is simpler and smaller in size compared with conventional water control components, the water chamber of this invention has a larger water capacity for the same size toilet body. Alternatively, with the same water chamber capacity, this invention can design the toilet body to be compact.

[0126] Example 4

[0127] like Figures 21-22 As shown, the difference between this embodiment and embodiment three is that the integrated water component has a guide 6 on the inner wall of the pump chamber 13, and the guide 6 is correspondingly set with at least one water outlet.

[0128] The guide member 6 is located on the rear side of the corresponding outlet in the direction of rotation, and the front end face of the guide member 6 is set at an angle C with the corresponding outlet. The outer surface of the guide member 6 is an arc-shaped guide surface 61, and the thickness of the front end face of the arc-shaped guide surface 61 is greater than the thickness of the rear end face.

[0129] The guide member 6 is provided to increase the head of the corresponding outlet. As shown in the figure, to increase the head of the drain outlet 45 and the flushing aid 49, the guide member 6 is provided on the rear side of the drain outlet 45 and the flushing aid 49. Figure 22 The arrows shown indicate the rotation directions corresponding to the drain outlet 45 and the flushing aid 49. By providing the guide member 6, the water flow can be guided out along the drain outlet 45 and the flushing aid 49, resulting in a greater head.

[0130] Example 5

[0131] This embodiment discloses a smart toilet, which includes a toilet body 8, a water inlet valve 9, a flow distribution component 85, and three or four integrated water fittings as described in the above embodiment. The toilet body 8 has a toilet seat 81 and a water receiving chamber 82, which can be the water tank of a regular toilet or the submerged water chamber of a sinking toilet. The water inlet valve 9 and the integrated water fittings are located inside the water receiving chamber 82. The water inlet valve 9 is connected to an external water supply pipe and is used to control the water supply to the water receiving chamber 82. A flushing aid pipe 50 is provided on the drain base 20.

[0132] like Figure 23 , 24 As shown, the flow distribution component 85 is provided with a through flow inlet 851 and at least two flow distributors 852. The flow distribution component 85 can also be adopted as follows: Figure 23 The simplified traffic distribution component shown. Or as... Figure 24 As shown, the flow distribution component 85 can adopt the dual-head flow distribution component with the publication number CN215330296U. This type of flow distribution component can be equipped with a delay mechanism, so that the water flows out from one of the flow distribution ports first, and then flows out from the other flow distribution port after a certain time, thus achieving the effect of sequential flow.

[0133] The water pump has two outlets, namely a first outlet and a second outlet. The flow inlet 851 of the flow distribution component 85 is connected to the main port of the first outlet. The two flow distribution ports are the drain port 45 and the flushing port 49. The drain port 45 is connected to the drainage mechanism, and the flushing port 49 is connected to the flushing pipe. The main port of the second outlet is the washing port 47, which is connected to the washing pipe 10.

[0134] The water outlet mode of the smart toilet in this embodiment is the same as that in Embodiment 4.

[0135] Because of the flow distribution component 85, only two outlets are needed to achieve control through the following settings, as shown in Table 2 below.

[0136] Table 2. Mode Control Methods of Smart Toilets (with Flow Distribution Components)

[0137]

[0138] This invention's smart toilet only requires controlling the forward and reverse rotation of the water pump motor 66 to achieve time-sharing operation of different toilet modes. By setting a delay mechanism on the flow distribution component 85, two-level time-sharing can be achieved. Control is convenient and simple because the integrated water component structure is more concise. Compared with conventional water control components, this invention allows for a more compact toilet design.

[0139] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A flushing control method for an intelligent toilet, characterized in that, The smart toilet is equipped with a water pump, a drainage mechanism, and a drainage base. The water pump includes a pump body, a pump motor, and an impeller. The pump body has a pump chamber, an inlet, and an outlet. The inlet connects to the pump chamber. The outlet includes at least one first outlet and at least one second outlet. Both the first and second outlets include a main outlet and a secondary outlet. The opening of the main outlet faces a direction parallel to the tangent of the outer edge of the pump chamber, or at an angle α to the tangent. The inclination angle α is set to ≤ 20°; both ends of the main port and the auxiliary port are connected, with the main port connecting to the pump chamber and the auxiliary port connecting to the corresponding main port. The connection position of the auxiliary port and the corresponding main port is located on the side of the main port near the connection end of the pump chamber. The cross-sectional area of ​​the main port is larger than that of the auxiliary port, and the depth of the pump chamber is greater than the diameter of the main port. The opening orientation of the auxiliary port is set at an inclination angle b with the opening orientation of the corresponding main port, where the inclination angle is 30° ≤ b ≤ 150°. The smart toilet is equipped with a washing pipe or both a washing pipe and a flushing aid pipe. The water pump motor can rotate in a first direction or a second direction. The flushing control method includes the following process: b. Control the water pump motor to rotate in the second direction to put the smart toilet into the washing mode; control the water pump motor to rotate in the first direction to put the smart toilet into the draining mode; or: Control the water pump motor to rotate in the second direction to put the smart toilet into the washing mode, and control the water pump motor to rotate in the first direction to put the smart toilet into the drainage mode and the flushing mode. The drainage mode involves a water pump driving the drainage mechanism to open the drainage base and flush the bottom of the toilet bowl; the washing mode involves water flowing from the washing pipe to flush the top of the toilet bowl; the assisted flushing mode involves water flowing from the assisted flushing pipe to assist flushing the bottom of the toilet bowl; when the first direction is clockwise, the second direction is counterclockwise; when the first direction is counterclockwise, the second direction is clockwise.

2. The flushing control method for a smart toilet as described in claim 1, characterized in that, The outlet of the water pump includes a drain outlet and a scrubbing outlet, or simultaneously includes a drain outlet, a scrubbing outlet and a flushing outlet. When the water pump motor is controlled to rotate in the second direction, causing the smart toilet to enter the washing mode, the water mainly flows out along the washing port, and the flow rate of the washing port is greater than 12L / min, while the head of the drain port is less than 2m. When the water pump motor is controlled to rotate in the first direction, causing the smart toilet to enter the draining mode, or the draining mode and the flushing mode, the head of the drain port is greater than 3m, while the flow rate of the washing port is less than 4L / min.

3. The flushing control method for a smart toilet as described in claim 1, characterized in that: When controlling the smart toilet to enter the drainage mode and the flushing mode, the two modes can be used simultaneously or sequentially.

4. The flushing control method for a smart toilet as described in claim 1, characterized in that: Before step b, the following steps are also included: A1 receives the start command and program command, and obtains the corresponding water pump motor direction command Z1 according to the program command; it determines whether the current water pump motor speed is 0. If the water pump motor speed is 0, it directly proceeds to step b, and controls the smart toilet to enter the corresponding mode according to the water pump motor direction command Z1; if the current water pump motor speed is not 0, it puts the direction command Z1 into the waiting queue; when the water pump motor speed is detected to be 0, it proceeds to step b and executes the direction command Z1 in the waiting queue.

5. The flushing control method for a smart toilet as described in claim 1, characterized in that: Before step b, the following steps are also included: a2 receives the start command and program command, and obtains the corresponding water pump motor direction command z1 according to the program command; it determines whether the current water pump motor speed is 0. If the water pump motor speed is 0, it directly proceeds to step b, and controls the smart toilet to enter the corresponding mode according to the water pump motor direction command z1; if the current water pump motor speed is not 0, it performs braking control to make the water pump motor speed 0, and then proceeds to step b.

6. The flushing control method for a smart toilet as described in claim 4 or 5, characterized in that: The program instructions include one or more of the following: S1. Normal Drainage: The smart toilet enters drainage mode; S2. Assisted Drainage: The smart toilet simultaneously enters both drainage mode and flushing mode; S3. Washing Water Discharge: The smart toilet enters the washing mode; S4. Regular combined flushing: The smart toilet first enters the washing mode, and then the drainage mode; S5. Assisted flushing: The smart toilet first enters the washing mode, then the drainage mode and the assisted flushing mode.

7. A smart toilet, characterized in that, The flushing control method according to any one of claims 1 to 6 is used to control the smart toilet. The smart toilet includes: a toilet body, a water inlet valve, and an integrated water fitting; the toilet body has a toilet chamber and a water receiving chamber, and a washing hole is provided on the wall of the toilet chamber, and the washing hole is connected to a washing pipe. The inlet valve and integrated water fittings are housed within the water-receiving cavity, and the inlet valve is connected to an external water supply pipe. The integrated water fitting includes a housing, a drainage mechanism, a water pump, and a drainage base. The water pump and drainage mechanism are installed in the inner cavity of the housing, and the drainage base is installed below the housing. The housing is provided with a water inlet / outlet hole for water supply. The water pump includes a pump body, a water pump motor, and an impeller. The pump body is provided with a pump chamber, an inlet, and an outlet. The inlet is connected to the pump chamber. The outlet includes at least one first outlet and at least one second outlet. The orientation of the main outlet corresponding to the first outlet is the direction of water flow when the motor rotates in a first direction. The orientation of the main outlet corresponding to the second outlet is the direction of water flow when the motor rotates in a second direction. The first direction and the second direction are opposite. Both the first and second water outlets include a main outlet and a secondary outlet. The opening of the main outlet faces a direction parallel to the tangent of the outer edge of the pump cavity, or is set at an angle α to the tangent, where the angle α ≤ 20°. Both ends of the main outlet and the secondary outlet are connected, with the main outlet communicating with the pump cavity and the secondary outlet communicating with the corresponding main outlet. The connection point between the secondary outlet and the corresponding main outlet is located on the side of the main outlet near the connection end of the pump cavity. The impeller is built into the pump cavity, and the pump motor drives the impeller to rotate. The main outlet corresponding to the first water outlet is connected to the drainage mechanism, and the main outlet corresponding to the second water outlet is connected to the washing pipe. The secondary outlet corresponding to the first water outlet and the secondary outlet corresponding to the second water outlet are connected to the inner cavity of the shell; The cross-sectional area of ​​the main port is larger than that of the secondary port, the depth of the pump chamber is greater than the diameter of the main port, and the opening orientation of the secondary port is set at an angle b to the opening orientation of the corresponding main port, wherein the angle is 30°≤b≤150°.

8. The smart toilet as described in claim 7, characterized in that: The water outlet is provided in two parts: a first water outlet and a second water outlet. The main opening of the first water outlet is a drain outlet, which is connected to the draining mechanism. The main opening of the second water outlet is a washing outlet, which is connected to a washing pipe outside the housing.

9. The smart toilet as described in claim 7, characterized in that: It also includes a flushing aid pipe; the water outlet is provided with three outlets, including two first outlets and one second outlet. The main openings of the two first outlets are a drain outlet and a flushing aid outlet, respectively. The drain outlet is connected to the draining mechanism, and the flushing aid outlet is connected to one end of the flushing aid pipe. The other end of the flushing aid pipe is connected to the drain outlet of the drain base. The main opening of the second outlet is a washing outlet, and the washing outlet is connected to a washing pipe outside the housing.

10. The smart toilet as described in claim 7, characterized in that: It also includes a flushing pipe and a flow distribution component, wherein the flow distribution component is provided with a through flow inlet and at least two flow outlets; The water outlet is provided in two parts: a first water outlet and a second water outlet. The main outlet of the first water outlet is connected to the flow inlet, and the two flow outlets are the drain outlet and the flushing aid outlet. The drain outlet is connected to the drainage mechanism, and the flushing aid outlet is connected to one end of the flushing aid pipe. The other end of the flushing aid pipe is connected to the drain outlet of the drainage base. The main outlet of the second water outlet is the washing outlet, and the washing outlet is connected to the washing pipe outside the housing.

11. The smart toilet as described in claim 9 or 10, characterized in that: The flushing aid pipe includes an inverted U-shaped pipe and a flushing aid pipe connected in sequence. One end of the inverted U-shaped pipe is connected to the flushing aid port, and the other end is connected to the flushing aid pipe. The top of the inverted U-shaped pipe is provided with an air hole, and the air hole is higher than the working water level set in the water receiving chamber. The flushing aid is connected to the drainage base, or the flushing aid and the drainage base are integrally formed; the end of the flushing aid extends out from the drainage outlet of the drainage base; the flushing aid is a venturi tube with a gradually decreasing diameter.

12. The smart toilet as described in any one of claims 7-10, characterized in that: At least one guide is provided on the inner wall of the pump chamber, and the guide is provided corresponding to at least one of the water outlets.

13. The smart toilet as described in claim 12, characterized in that: The guide is located on the rear side of the outlet in the direction of rotation. The front end face of the guide is set at an angle to the corresponding outlet. The outer surface of the guide is an arc-shaped guide surface. The thickness of the front end face of the arc-shaped guide is greater than the thickness of the rear end face.

14. The smart toilet as described in any one of claims 7-10, characterized in that: The pump body includes a first pump casing and a second pump casing, which are detachably connected and form a pump cavity with the first and second pump casings. The inlet and outlet are both located on the first pump casing. The pump motor is detachably connected to the second pump casing, or the second pump casing is integrally formed with the outer casing of the pump motor. The inlet of the pump is positioned directly opposite the water passage hole. A filter cover is provided on the water passage hole, and a baffle plate is provided on the side of the filter cover near the drain base. The shell is provided with fasteners on both sides. The fasteners include a pressure plate and a buckle plate. The lower end of the pressure plate is connected to the shell or integrally formed. The upper end of the pressure plate is suspended. The upper end of the buckle plate is connected to the middle of the pressure plate or integrally formed. The lower end of the buckle plate is snapped into the drainage base. The drainage mechanism is detachably connected to the housing. The first outlet of the water pump is inserted into the drainage mechanism. The drainage mechanism is also provided with a first positioning stop. The pump body is provided with a second positioning stop that is inserted into or snapped into the first positioning stop. The drainage mechanism includes a valve body, a return spring, a piston, and a sealing rubber. The upper end of the piston is slidably connected to the inner cavity of the valve body, and a drainage chamber is formed between the piston and the valve body. The main port corresponding to the first outlet is connected to the drainage chamber. The valve body and / or the piston are provided with vent holes that connect to the drainage chamber. The lower end of the piston extends out of the valve body and is connected to the sealing rubber. The sealing rubber is sealed and adapted to the drainage outlet of the drainage base. The return spring is disposed in the inner cavity of the valve body and is located above the piston. The upper end of the return spring abuts against the valve body, and the lower end of the return spring abuts against the piston.

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