Flushing control method for smart toilet, smart toilet, and flushing system

Abstract

The present invention relates to a flushing control method for a smart toilet, and further relates to a flushing system and a smart toilet. A water pump (1), a drainage channel (52), and a washing channel (6) are provided in the smart toilet. A motor of the water pump (1) can rotate in a first direction or a second direction to enable the smart toilet to enter different modes. By means of forward and reverse rotation of the motor, the drainage channel (52) and the washing channel (6) can discharge water individually or simultaneously in different modes without the need for providing any additional on / off structure, thereby achieving convenient control, a simpler structure, and lower manufacturing and maintenance costs for the water pump.

Description

A flushing control method for a smart toilet, a smart toilet, and a flushing system. Technical Field

[0001] This invention relates to the field of bathroom technology, and more particularly to a smart toilet. Background Technology

[0002] Existing 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. Because multiple pumps are used, this design requires a large space and is complex to control.

[0003] To overcome the above problems, the invention patent with publication number 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 for drainage and washing respectively. Through integrated design, the structure is simple and can be used in sunken smart toilets in small spaces without a water tank. However, the structure cannot realize the function of washing separately.

[0004] As smart toilets offer more functions, such as washing, water replenishment, wall lubrication, and drainage, the application scenarios for water pumps are also increasing. To meet different usage needs, water flow is required to exit only from the washing outlet when performing washing, water replenishment, and wall lubrication functions. Existing toilets cannot meet this demand with a single water pump, requiring multiple pumps. However, smart toilets have the need for miniaturization and aesthetic design, and the structure of multiple pumps increases the volume of the water tank, greatly limiting the design of the toilet. Summary of the Invention

[0005] The purpose of this invention is to provide a flushing control method for an intelligent toilet. By using a water pump and controlling the forward and reverse rotation of the motor, the water output from different outlets can be controlled. This method is convenient to control and has a simple structure.

[0006] To achieve the above objectives, this invention discloses a flushing control method for a smart toilet. The smart toilet is equipped with a water pump, a drainage channel, and a washing channel. The motor of the water pump can rotate in a first direction or a second direction. The flushing control method includes the following process:

[0007] The motor is controlled to rotate in the second direction, causing the water pump to drive water flow into the washing channel to wash, replenish, or lubricate the upper part of the toilet bowl; or the motor is controlled to rotate in the first direction, causing the water pump to drive water flow into both the drainage channel and the washing channel simultaneously to flush the bottom of the toilet bowl and rinse the upper part 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] This invention also discloses a flushing control method for a smart toilet. The smart toilet is equipped with a water pump, a drainage channel, and a washing channel. The motor of the water pump can rotate in a first direction or a second direction. The flushing control method includes the following process:

[0009] The motor is controlled to rotate in the second direction to put the smart toilet into the washing mode; the motor is controlled to rotate in the first direction to put the smart toilet into the draining mode; wherein, in the draining mode, the water pump drives water flow into the drain channel to flush the bottom of the toilet bowl; in the washing mode, the water pump drives water flow into the washing channel to flush the top 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.

[0010] The present invention also discloses an intelligent toilet and flushing system using the above-described flushing control method.

[0011] Based on the above solution, the present invention has the following beneficial effects: the present invention can realize the drainage channel and the washing channel to output water separately or simultaneously in different modes by rotating the motor in both directions, which is convenient to control, does not require additional on / off structure, has a simpler structure, and lower manufacturing and maintenance costs of the water pump. Attached Figure Description

[0012] Figure 1 is a perspective view of the water pump in Embodiment 2.

[0013] Figure 2 is an exploded view of Figure 1.

[0014] Figure 3 is a cross-sectional view of the water pump in Embodiment 2.

[0015] Figure 4 is a structural diagram of the water outlet cover in Figure 1.

[0016] Figure 5 is a schematic diagram of Figure 4 from another angle.

[0017] Figure 6 is a cross-sectional view of Figure 3 (the impeller rotates along the W1 direction).

[0018] Figure 7 is a cross-sectional view of Figure 3 (the impeller rotates along the W2 direction).

[0019] Figure 8a is a schematic diagram of the water pump's outlet principle in Example 2 (with two parallel second outlets).

[0020] Figures 8b and 8c are schematic diagrams of the water pump's outlet principle in other embodiments (with two intersecting second outlets).

[0021] Figure 9 is a schematic diagram of the water pump's outlet principle in other embodiments (with only one second outlet).

[0022] Figure 10 is a schematic diagram of the structure of the smart toilet in Embodiment 2 or Embodiment 4.

[0023] Figure 11 is a structural schematic diagram of Figure 10 from another angle.

[0024] Figure 12 is a three-dimensional cross-sectional view of the smart toilet in Figure 10.

[0025] Figure 13 is a three-dimensional cross-sectional view of the water pump installed in the water tank in Embodiment 2.

[0026] Figure 14 is a schematic diagram of the water tank in Embodiment 4.

[0027] Figure 15 shows a cross-sectional view of the water tank in Example 4.

[0028] Figure 16 is an enlarged view of point A in Figure 15.

[0029] Figure 17 is a schematic diagram of the water pump in Embodiment 4.

[0030] Figure 18 is a cross-sectional schematic diagram of the water pump in Embodiment 4.

[0031] Figure 19 is a schematic diagram of the water pump in Embodiment 5.

[0032] Figure 20 is a schematic diagram of Figure 19 from another angle.

[0033] Figure 21 is a cross-sectional schematic diagram of the water pump in Embodiment 5 (internal structure hidden).

[0034] Figure 22 is an exploded view of the water pump in Example 5.

[0035] Figure 23 is a partial cross-sectional view of the water pump in Embodiment 5.

[0036] Figure 24 is a structural diagram of the rotor and impeller.

[0037] Figure 25 is a structural diagram of the water outlet cover of Embodiment 5.

[0038] Figure 26 is a cross-sectional view of the water outlet cover of Embodiment 5 (the water flow rotates clockwise).

[0039] Figure 27 is a cross-sectional view of the water outlet cover of Embodiment 5 (the water flow rotates counterclockwise).

[0040] Figure 28 is a structural schematic diagram of Embodiment 7.

[0041] Figure 29 is a structural schematic diagram of Embodiment 8.

[0042] Figure 30 is a schematic diagram of Example 9.

[0043] Figure 31 is a schematic diagram of the flushing system in Example 9.

[0044] Figure 32 is a schematic diagram of the flushing system of Embodiment Nine from another perspective.

[0045] Figure 33 is a schematic diagram of the water pump in Embodiment 9.

[0046] Figure 34 is a cross-sectional view of the water pump in Embodiment 9.

[0047] Figure 35 is a schematic diagram of the water outlet cover of Embodiment 9.

[0048] Figure 36 is a cross-sectional view of the water outlet cover of Embodiment 9.

[0049] Figure 37 is a schematic diagram of the water pump outlet in Embodiment 9 (when the motor rotates in the first direction).

[0050] Figure 38 is a schematic diagram of the water pump outlet in Embodiment 9 (when the motor rotates in the second direction).

[0051] Figure 39 is a schematic diagram of the flushing system of Example 10.

[0052] Figure 40 is a schematic diagram of the pipe fitting in Example 10.

[0053] Figure 41 is a cross-sectional view of the pipe fitting of Embodiment 10.

[0054] Explanation of symbols for main components: 1: Water pump; 10: Pump body; 11: Outlet cover; 111: Connecting bracket; 112: Assembly hole; 12: Pump casing; 13: End cover; 14: Pump chamber; 15: Inlet; 16: First outlet channel; 161: First outlet; 17: Second outlet channel; 171: Second outlet; 1711: Second outlet A; 1712: Second outlet B; 1713: Second outlet C; 172: Pump chamber connecting section; 173: Merging section; 18: Third outlet channel; 181: Third outlet; 182: Inner pipe; 183: Outer pipe; 191: Drain outlet; 192: Washing outlet; 2: Motor; 21: Rotor; 22: Motor shaft; 3: Impeller; 31: First connecting plate; 32: Second connecting plate. Plate, 33: Blade, 34: Opening, 35: Arc-shaped guide surface, 4: Overflow port, 42: Pipe fitting, 421: First straight pipe, 422: Second straight pipe, 423: Connecting pipe, 52: Drainage pipe, 53: Anti-siphon port, 54: Overflow pipe, 6: Washing pipe, 61: Sprayer head, 62: Inner pipe, 63: Connecting pipe fitting, 64: Outer pipe, 65: Bend, 7: Inlet valve, 8: Toilet body, 81: Toilet chamber, 811: Washing hole, 812: Sewage outlet, 82: Water tank, 821: Mounting hole, 822: Water outlet pipe, 823: Return port, 824: Water outlet hole. Detailed Implementation

[0055] 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.

[0056] Example 1

[0057] This invention discloses a flushing control method for an intelligent toilet. The intelligent toilet of this invention includes a water pump, a washing channel, and a drainage channel.

[0058] Depending on the structure of different smart toilets, the drainage channel can be a separate drainage pipe, or it can be a drain outlet inside the water tank that is opened or closed by the drainage mechanism. Similarly, the washing channel can be a separate washing pipe, or it can be an internal channel formed by connecting holes in the ceramic toilet body.

[0059] The water pump motor can rotate in either the first or the second direction. The flushing control of a smart toilet involves the following two processes:

[0060] 1. The water pump drives water to flow separately into the washing channel to wash, replenish water, or lubricate the upper part of the toilet bowl.

[0061] 2. The water pump drives water to simultaneously enter the drain and flushing channels, flushing the bottom of the toilet bowl and simultaneously rinsing the top of the toilet bowl. When the toilet is flushed from the bottom, some sewage or debris will splash onto the walls of the toilet bowl. Therefore, the top of the toilet bowl is also flushed, and the flushing water washes away the splashed sewage or debris, cleaning the toilet bowl walls. Specific control methods include the following steps:

[0062] a. Receive the start command and program control command, obtain the corresponding direction command for the water pump motor based on the program control command, and transmit the direction command to the water pump motor. The program control command includes one or more single-step commands or compound commands listed in Table 1.

[0063] Table 1. Relationship between Program Control Instructions and Turning Instructions

[0064] 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.

[0065] There are two methods for refilling water in a smart toilet: one is by allowing water to flow into the washing channel, and the other is by using a water inlet valve. In other embodiments, water can also be refilled via the water inlet valve.

[0066] b. The water pump motor performs corresponding control according to the direction command: control the motor to rotate in the second direction, so that the water pump drives the water flow into the washing channel to wash, replenish water or moisten the upper part of the toilet bowl; or control the motor to rotate in the first direction, so that the water pump drives the water flow into the drainage channel and the washing channel at the same time to flush the bottom of the toilet bowl and rinse the upper part of the toilet bowl.

[0067] Example 2

[0068] This embodiment discloses the structure of an intelligent toilet used in Embodiment 1 for implementing the flushing control method of an intelligent toilet.

[0069] As shown in Figures 10-13, the smart toilet includes a toilet body 8, a water inlet valve 7, a water pump 1, a drainage channel, and a washing channel. The drainage channel is a drain pipe 52, and the washing channel is a washing pipe 6.

[0070] The toilet body 8 includes a toilet bowl 81 and a water tank 82. The water tank 82 is integrally formed at the rear of the toilet bowl 81, or it can be separately installed and fixed at the rear of the toilet bowl 81. Several washing holes 811 are provided on the wall of the toilet bowl 81, and a drain outlet 812 is provided at the bottom of the toilet bowl 81. The ends of the drain pipe 52 and the washing pipe 6 are also connected to nozzles 61 to increase water pressure and adjust the water flow angle. The nozzles 61 of the drain pipe 52 are installed at the drain outlet 812, and the nozzles 61 of the washing pipe 6 are installed at the washing holes 811, so that the water flow from the drain pipe 52 is connected to the drain outlet 812, and the water flow from the washing pipe 6 is connected to the washing holes 811. The water tank 82 is provided with a container inlet, and a water inlet valve 7 is provided on the container inlet. Water is supplied to the water tank 82 through an external water source connected to the water inlet valve 7. The water tank 82 does not yet have an overflow port 4. When the inlet valve 7 malfunctions and the water in the water tank 82 is too full, the water will flow out from the overflow port 4.

[0071] As shown in Figure 13, the water pump 1 is installed in the water tank 82 to transport water from the tank 82 to different outlet channels. Referring to Figures 1-3, the water pump 1 includes a pump body 10, a motor 2, and an impeller 3. The pump body 1 includes an outlet cover 11, a pump casing 12, and an end cover 13. The outlet cover 11 and the end cover 13 are respectively installed at both ends of the pump casing 12, and a pump chamber 14 is formed inside the pump body 1. The motor 2 is detachably connected inside the pump casing 12, or the motor 2 housing is integrally formed with the pump casing 12.

[0072] As shown in Figures 4 to 7, the water outlet cover 11 is provided with a water inlet 15, a first water outlet channel 16, a second water outlet channel 17, and a third water outlet channel 18. The water inlet 15 is located on one side of the water outlet cover 11, and the first water outlet channel 16, the second water outlet channel 17, and the third water outlet channel 18 are located on the side wall of the water outlet cover 11. All three water outlet channels 15, 16, 17, and 18 are connected to the pump chamber 14. (The third water outlet channel 18 is a spare water outlet channel: if used as a flushing aid, the third water outlet channel 18 may not be provided in the water pump of this embodiment).

[0073] As shown in Figure 4, a connecting frame 111 is provided inside the water inlet 15 of the outlet cover 11. The end of the connecting frame 111 is provided with an assembly hole 112. The rotor 21 of the motor 2 is fixedly connected to the impeller 3, and the motor shaft 22 is connected to the assembly hole 112 of the connecting frame 111. The cross section of the connection between the assembly hole 112 and the motor shaft 22 is set to D-shape to prevent the motor shaft 22 from rotating axially within the assembly hole 112. The impeller 3 is built into the pump chamber 14. The impeller 3 includes a first connecting plate 31, a second connecting plate 32, and a plurality of blades 33 evenly arranged between the first connecting plate 31 and the second connecting plate 32. As shown in Figure 3, the first connecting plate 31 has an opening 34 in the middle. The diameter of the opening 34 is larger than the diameter of the inlet 15. The end of the opening 34 is provided with an arc-shaped guide surface 35 for guiding the water flow, so that the water flow can enter the impeller 3 through the opening 34 after entering from the inlet 15. The impeller 3 rotates and guides the water flow to the first outlet channel 16, the second outlet channel 17 and the third outlet channel 18.

[0074] As shown in Figure 6, motor 2 is a reversible motor, driving impeller 3 to rotate in either a first direction or a second direction. The first direction is clockwise, as shown by W1 in Figure 6, and the second direction is counterclockwise, as shown by W2 in Figure 7. In other embodiments, the first direction may also be counterclockwise, and the second direction may be clockwise.

[0075] The principle of water discharge in this invention is as follows: When the impeller 3 rotates in a certain direction, water flows out easily along the tangential direction, but not easily against the tangential direction. The tangential direction is defined as: the outlet opening faces a direction parallel to the tangential direction of the corresponding pump cavity's outer edge (along the current rotation direction), or is set at a small angle α with the tangential direction. The reverse tangential direction is defined as: the outlet opening faces a direction parallel to the tangential direction of the corresponding pump cavity's outer edge (against the current rotation direction), or is set at a small angle α with the tangential direction. When the outlet opening faces a larger angle β with the tangential direction of the corresponding pump cavity's outer edge, where β > α, water can flow out from the current outlet regardless of whether the rotation is in the first or second direction. The angle defined in this application is less than 90 degrees. To ensure the corresponding flow rate meets the requirements, the angle α ≤ 30° and the angle β > 30°; more preferably, the angle α ≤ 10° and the angle β > 45°.

[0076] Referring to Figures 8a, 8b, 8c, and 9, the arrangement principle of the first water outlet channel 16, the second water outlet channel 17, and the third water outlet channel 18 of the present invention will be explained using simplified drawings. The first water outlet channel 16 includes a first water outlet 161. The opening of the first water outlet 161 is parallel to the tangent direction of the corresponding outer edge of the pump chamber, or at an angle α ≤ 30° to the tangent direction; and the orientation of the first water outlet 161 is along the water flow direction of the impeller 3 rotating in the first direction. For the sake of miniaturization, generally only one first water outlet 161 is needed for the first water outlet channel 16. In some embodiments, the first water outlet channel 16 also has other water outlets, but the flow rate of the other water outlets is extremely small and does not affect the realization of the effect of this application. The second water outlet channel 17 is provided with one or more second water outlets 171, so that when the impeller rotates in the first direction or the second direction, at least one second water outlet 171 discharges water. The second water outlet channel 17 is connected to the outside of the housing. The third water outlet channel 18 includes a third water outlet 181. The opening of the third water outlet 181 is parallel to the tangent direction of the corresponding outer edge of the pump chamber, or is set at an angle α with the tangent direction; and the third water outlet 181 is oriented along the water flow direction of the impeller 3 rotating in the first direction. For the sake of miniaturization, the third water outlet channel 18 generally only needs to be provided with one third water outlet 181. In some embodiments, the third water outlet channel 18 is also provided with other water outlets, the flow rates of which are extremely small and do not affect the realization of the effect of this application.

[0077] As shown in Figures 8a-8c, the first water outlet channel 16 has one first water outlet 161, the second water outlet channel 17 has two second water outlets 171, and the third water outlet channel 18 has one third water outlet 181. The outer edge of the pump chamber corresponding to the first water outlet 161 is point P1, and the setting direction of the first water outlet 161 is the tangent line along P1 (in the direction of W1). The outer edge of the pump chamber corresponding to the third water outlet 181 is point P4, and the setting direction of the third water outlet 181 is the tangent line along P4 (in the direction of W1).

[0078] The two second water outlets 171 of the second water outlet channel 17 are generally implemented in the following three ways:

[0079] (1) As shown in Figure 8a, the second water outlet channel includes a second water outlet A and a second water outlet B; a second water outlet A 1711 and a second water outlet B 1712. The opening of the second water outlet A 1711 is set at an angle β with the tangent direction of the corresponding outer edge of the pump chamber. In the figure, the point corresponding to the outer edge of the pump chamber for the second water outlet A 1711 is P2. A tangent q1 is drawn along P2, and the opening of the second water outlet A 1711 is set at an angle β1 = 52° with the tangent q1. The opening of the second water outlet B 1712 is parallel to the tangent direction of the corresponding outer edge of the pump chamber, or is set at an angle α with the tangent direction, and the orientation of the second water outlet B 1712 is along the water flow direction of the impeller 3 rotating in the second direction. In the diagram, the outer edge of the pump chamber corresponding to the second outlet B 1712 is point P3. The tangent along P3 is the setting direction of the second outlet B, which is parallel to the second outlet A. When the impeller 3 rotates along the W2 direction, water flows out from the second outlet A 1711 and the second outlet B 1712. Since the first outlet 161 and the third outlet 181 are in the opposite direction of rotation, water flow is basically not flowing out from the first outlet 161 and the third outlet 181. When the impeller 3 rotates along the W1 direction, water flows out from the first outlet 161, the second outlet A 1711, and the third outlet 181. Since the second outlet B 1712 is in the opposite direction of rotation, water flow is basically not flowing out from the second outlet B 1712.

[0080] (2) As shown in Figure 8b, the second water outlet channel includes a second outlet B1712 and a second outlet C1713. The opening of the second outlet B1712 is parallel to the tangent direction of the corresponding outer edge of the pump chamber, and the orientation of the second outlet B1712 is along the water flow direction of the impeller rotating in the second direction. The opening of the second outlet C1713 is parallel to the tangent direction of the corresponding outer edge of the pump chamber, and the orientation of the second outlet C1713 is along the water flow direction of the impeller rotating in the first direction. When the impeller 3 rotates in the W2 direction, water flows out from the second outlet B1712. Since the first outlet 161, the second outlet C1713, and the third outlet 181 are in the opposite tangent direction of rotation at this time, water does not flow out from the first outlet 161, the second outlet C1713, and the third outlet 181. When the impeller 3 rotates along the W1 direction, water flows out from the first outlet 161, the second outlet C 1713, and the third outlet 181. Since the second outlet B 1712 is in the opposite direction of the rotation tangent at this time, water does not flow out from the second outlet B 1712.

[0081] (3) As shown in Figure 8c, the second water outlet channel includes a second outlet B1712 and a second outlet D1714. The opening of the second outlet B1712 is parallel to the tangent direction of the corresponding outer edge P3 of the pump chamber (along W2), that is, the orientation of the second outlet B1712 is along the direction of water flow as the impeller rotates in the second direction. The opening of the second outlet D1714 forms an angle β5 = 48° with the tangent direction of the corresponding outer edge P3 of the pump chamber (along W1). When the impeller 3 rotates along the W2 direction, water flows out from the second outlet B1712 and the second outlet D. Since the first outlet 161 and the third outlet 181 are in the opposite direction of rotation at this time, water does not flow out from the first outlet 161 and the third outlet 181. When the impeller 3 rotates along the W1 direction, water flows out from the first outlet 161, the second outlet D 1714, and the third outlet 181. Since the second outlet B 1712 is in the opposite direction of the rotation at this time, water does not flow out from the second outlet B 1712.

[0082] As shown in Figure 9, in this embodiment, the first water outlet channel 16 is provided with a first water outlet 161, the second water outlet channel 17 is provided with a second water outlet 171, and the third water outlet channel 18 is provided with a third water outlet 181. The outer edge of the pump cavity corresponding to the first water outlet 161 is point P5, and the setting direction of the first water outlet 161 is the tangent line along P5 (along the W1 direction). The opening direction of the second water outlet 171 is set at an angle β with the tangent direction of the corresponding outer edge of the pump cavity, and the angle β > 30°. In the figure, the point on the outer edge of the pump cavity corresponding to the second water outlet 171 is P6. A tangent line q2 is drawn along P6, and the opening direction of the second water outlet 171 forms an angle β2 = 60° with the tangent line q2. The outer edge of the pump cavity corresponding to the third water outlet 181 is point P7, and the setting direction of the third water outlet 181 is the tangent line along P7 (along the W1 direction). When the impeller 3 rotates along the W1 direction, the water mainly flows out from the first outlet 161 and the third outlet 181, with some also flowing out from the second outlet 171. When the impeller 3 rotates along the W2 direction, the water flows out from the second outlet 171. Since the first outlet 161 and the third outlet 181 are in the opposite tangential direction of rotation at this time, the water basically does not flow out from the first outlet 161 and the third outlet 181.

[0083] This principle ensures that when the impeller 3 rotates in the first direction, water flows simultaneously through the first outlet 161, the third outlet 181, and at least one second outlet 171, with a flow rate >5L / min in the second outlet channel. When the impeller 3 rotates in the second direction, water flows primarily through the second outlet 171, with a flow rate >8L / min in the second outlet channel; water does not flow from the first outlet 161 and the third outlet 181, or only a small amount flows from them. This structure makes the water pump of this invention suitable for two toilet application scenarios: when entering the flushing mode, water flows simultaneously from the first, second, and third outlet channels; while when entering the washing, refilling, or wall-lubricating mode, water flows only from the second outlet channel to conserve water.

[0084] Based on the above explanation of the principles and referring to Figures 6 and 7, in a specific embodiment of the present invention, the second water outlet channel 17 is configured as a cylindrical pipe body. The cylindrical pipe body has a pump chamber connection section 172 and a manifold section 173. The pump chamber connection section 172 has a through-hole second water outlet A 1711 and a second water outlet B 1712. The manifold section 173 has a manifold outlet 1731. The manifold section 173 is integrally formed with the pump chamber connection section 172, or the manifold section 173 is sealed and assembled onto the pump chamber connection section 172. The manifold outlet 1731 communicates with the second water outlet A 1711 and the second water outlet B 1712. By setting the manifold section 173, in practical applications, only one pipe needs to be connected, improving the convenience of connection and reducing the size of the water pump. As shown in Figure 12, when the impeller 3 rotates along the W1 direction, water flows out from the first outlet 161, the second outlet A 1711, and the third outlet 181 (the solid arrows in the figure indicate the direction of water flow). Since the second outlet B 1712 is tangential to the rotation at this time, water flow is basically not flowing out from the second outlet B 1712. As shown in Figure 13, when the impeller 3 rotates along the W2 direction, water flows out from the second outlet A 1711 and the second outlet B 1712 (the dashed arrows in the figure indicate the direction of water flow). Since the first outlet 161 and the third outlet 181 are tangential to the rotation at this time, water flow is basically not flowing out from the first outlet 161 and the third outlet 181.

[0085] In this embodiment, only the first and second water outlet channels can be provided: When the motor 2 controls the impeller 3 to rotate in the W1 direction, water flows out from both the first and second water outlet channels 16 and 17. The first water outlet channel 16 flushes the drain outlet 812 through the drain pipe 52, and the second water outlet channel 17 washes the wall above the toilet chamber 81 through the washing pipe 6. The water splashed up during flushing and the dirt on the wall are simultaneously cleaned by the water flowing out of the washing hole 811. When the motor 2 controls the impeller 3 to rotate in the W2 direction, water flows out only from the second water outlet channel 17. The water from the second water outlet channel 17 flows into the washing hole 811 through the washing pipe 6 to wash, moisten, or replenish the wall above the toilet chamber 81. In this mode, the first water outlet channel 16 is not flushed, saving water and making the application more flexible.

[0086] Example 3

[0087] This embodiment discloses a flushing control method for an intelligent toilet. The difference between this method and Embodiment 1 is that in this embodiment, the water pump motor is controlled to rotate in both directions to achieve time-based water output from different outlets of the water pump.

[0088] The water pump motor can rotate in either the first or second direction. The smart toilet has the following two modes:

[0089] 1. Drainage mode: The water pump drives water flow into the drainage channel to flush the bottom of the toilet bowl.

[0090] 2. Washing mode: The water pump drives water flow into the washing channel to flush the top of the toilet bowl.

[0091] The flushing modes of a smart toilet include a drainage mode and a washing mode. The main principle and steps of the flushing control method are as follows: 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 drainage mode.

[0092] 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.

[0093] The water pump has two outlets: a drain outlet and a wash outlet. When the water pump motor is controlled to rotate in the second direction, putting the smart toilet into wash mode, water flows out through the wash outlet. When the water pump motor is controlled to rotate in the first direction, putting the smart toilet into drain mode, water flows out through the drain outlet.

[0094] The overall control steps of the flushing control method of the present invention are as follows:

[0095] 1. Receive start command, program command, or receive start command, program command, and gear command:

[0096] Program instructions may include one or more of the following:

[0097] (1) Bottom flush: The smart toilet enters the drain mode. (2) Washing water: The smart toilet enters the wash mode. (3) Combined flush: The smart toilet first enters the wash mode and then enters the drain mode.

[0098] The program instructions correspond to different modes, and the different modes correspond to different steering control signals.

[0099] Gear commands, such as first gear, second gear, third gear, etc., correspond to different speed signals.

[0100] In other embodiments, the gear position command may not be set separately, but rather combined with the program command to simplify the setup of the smart toilet. When the gear position command and program command are combined, the program command may include one or more of the following:

[0101] (1) Low-speed flushing: The smart toilet enters the flushing mode (motor rotates in the first direction) at 50% speed. (2) High-speed flushing: The smart toilet enters the flushing mode (motor rotates in the first direction) at 80% speed. (3) Low-speed washing: The smart toilet enters the washing mode (motor rotates in the second direction) at 50% speed. (4) High-speed washing: The smart toilet enters the washing mode (motor rotates in the second direction) at 80% speed. (5) Low-speed combined flushing: The smart toilet first enters the washing mode (rotates in the second direction) at 50% speed, then enters the flushing mode (motor rotates in the first direction) at 50% speed. (6) High-speed combined flushing: The smart toilet first enters the washing mode (rotates in the second direction) at 80% speed, then enters the flushing mode (motor rotates in the first direction) at 80% speed.

[0102] A pre-set mapping table is created for program commands, modes, steering control, and speed signals. The corresponding control is then performed by calling the mapping relationships in the table. See Table 2 below:

[0103] Table 2. Flushing Control Mapping Table

[0104] The above is only a proposed mapping table. Depending on actual needs, more detailed mapping relationships can be set to better suit user requirements.

[0105] Example 4

[0106] This embodiment discloses a smart toilet, using the control method of Embodiment 1 or Embodiment 3.

[0107] As shown in Figures 10-12, the smart toilet of this embodiment includes a toilet body 8, a water inlet valve 7, a water pump 1, a drain pipe 52, and a washing pipe 6.

[0108] The toilet body 8 includes a toilet bowl 81 and a water storage container, which can be a water tank 82 or a submerged water chamber. The inlet valve 7 and water pump 1 are both located inside the water tank 82. A wash hole 811 is provided on the wall of the toilet bowl 81, and a drain outlet 812 is provided at the bottom of the toilet bowl 81. A container inlet is provided on the water tank 82. The inlet valve 7 is located at the container inlet.

[0109] As shown in Figure 17, the water pump 1 includes a pump body, a motor and an impeller. The pump body is provided with a pump chamber 14, a first water outlet channel (drain outlet 191), a second water outlet channel (washing outlet 192) and at least one water inlet 15. The water inlet 15 is connected to the pump chamber 14. The impeller is built into the pump chamber and the motor drives the impeller to rotate.

[0110] One end of the drain pipe 52 is connected to the drain outlet 191, and the other end passes through the side wall or over the top of the water tank 82 and connects to the toilet drain outlet 812.

[0111] One end of the washing pipe 6 is connected to the washing outlet 192, and the other end is connected to the washing hole 811.

[0112] As shown in Figure 18, the drain outlet 191 is oriented in the direction of water flow when the motor rotates in the first direction (clockwise, indicated by the solid arrow in the figure). That is, the drain outlet 191 is set along the tangent of the motor's rotation, making it easier for water to flow out of the drain outlet 191 when the motor rotates clockwise. The wash outlet 192 is oriented in the direction of water flow when the motor rotates in the second direction (counter-clockwise, indicated by the dashed arrow in the figure). That is, the wash outlet 192 is set along the tangent of the motor's rotation, making it easier for water to flow out of the wash outlet 192 when the motor rotates counter-clockwise.

[0113] As shown in Figures 14-16, at least one of the drain pipe 52 and the washing pipe 6 is provided with an anti-siphon port 53. The anti-siphon port 53 is connected to the water tank 82 and is set above the working water level of the water tank 82.

[0114] As shown in Figures 15 and 16, both the drainage pipe 52 and the washing pipe 6 include an inner pipe 62, a connecting fitting 63, and an outer pipe 64. The inner pipe 62 is placed inside the water tank 82, and the outer pipe 64 is placed outside the water tank 82. A mounting hole 821 penetrating the tank wall is provided on the water tank 82. The outer diameter of the connecting fitting 63 is matched with the diameter of the mounting hole 821, and the connecting fitting 63 is inserted into the mounting hole 821. Both the outer pipe 64 and the inner pipe 62 are inserted into the connecting fitting 63 (one end of the connecting fitting 63 is inserted into the cavity of the outer pipe 64, and the other end is inserted into the cavity of the inner pipe 62), thus connecting the inner pipe 62 to the outer pipe 64 via the connecting fitting 63. At least above the connecting fitting 63 corresponding to the drain pipe 52, there is an "L"-shaped bend 65. One end of the bend 65 connects to the inner cavity of the connecting fitting 63, and the other end connects to the inner cavity of the water tank 82. The end of the bend 65 connecting to the inner cavity of the water tank 82 is an anti-siphon port 53, which is set higher than the working water level of the water tank 82. When the position of the flushing hole 811 on the toilet is higher than the working water level in the water tank 82, the anti-siphon port 53 does not need to be set on the flushing pipe 6. That is, only the bend 65 needs to be set on the drain pipe 52, and the bend 65 does not need to be set on the flushing pipe 6. When the position of the flushing hole 811 on the toilet is lower than the working water level in the water tank 82, both the flushing pipe 6 and the drain pipe 52 need to be equipped with anti-siphon ports 53.

[0115] In addition, an overflow port 4 can be provided on the water tank 82. The overflow port 4 is used to connect to the toilet chamber 81 of the toilet so that when the water level control of the water tank 82 is abnormal, the overflow water can enter the toilet chamber 81 and be discharged.

[0116] The flushing control method of this invention allows for the control of the flushing of the smart toilet, enabling multiple modes of water output simply by changing the forward and reverse rotation and speed of the motor. The control is convenient and simple, and compared to conventional water control components, this invention allows for a more compact toilet design.

[0117] Example 5

[0118] This embodiment discloses a flushing system, which includes a water tank 82, a water pump 1, a drain pipe 52, and a washing pipe 6. A container inlet is provided on the water tank 82, and an inlet valve 7 is provided on the container inlet to facilitate water replenishment to the water tank 82 and to stabilize the working water level of the water tank 82. The structure of the water tank, drain pipe, and washing pipe in this embodiment is the same as in Embodiment 4, the difference being that the water pump in this embodiment is different from that in Embodiment 4. The water pump will be described in detail below.

[0119] As shown in Figures 19-27, the water pump 1 is detachably installed in the inner cavity of the water tank 82. Preferably, it is installed at the bottom of the inner cavity, which allows the water pump 1 to be directly snapped, plugged in, or screwed to the water tank 82. Alternatively, some auxiliary connecting parts such as clamps can be used to install the water pump 1 at the bottom of the inner cavity of the water tank 82. This arrangement can ensure the stability of the position of the water pump 1 and ensure stable and reliable water intake at the water inlet 15 of the water pump 1.

[0120] As shown in Figures 20-22, the water pump 1 includes a pump body, a motor 2, and an impeller 3. The pump body includes an outlet cover 11 and a pump casing 12, which are detachably and sealingly connected, such as by snap-fit ​​or screw connection. The outlet cover 11 and the pump casing 12 cooperate to form a pump cavity 14, in which the impeller 3 is placed. The size of the impeller 3 is adapted to the pump cavity 14, and preferably the cross-sectional shape of the pump cavity 14 is circular. The motor 2 is used to drive the impeller 3 to rotate. The motor 2 is detachably connected to the pump casing 12, or the pump casing 12 and the outer shell of the motor 2 are integrally formed, depending on the selection of the motor 2.

[0121] At least one water inlet 15 is provided at the end of the water outlet cover 11. In this embodiment, the water inlet 15 is provided on the side end face facing the impeller 3. Two water outlets are provided on the side wall of the water outlet cover 11. Both the water inlet 15 and the water outlet are connected to the pump chamber 14.

[0122] As shown in Figures 22 and 25, a connecting frame 111 is provided inside the inlet 15 of the outlet cover 11, and the end of the connecting frame 111 has an assembly hole 112. The rotor 21 of the motor 2 is fixedly connected to the impeller 3, and the stator of the motor 2 is fixed inside the pump casing 12 or integrally formed therewith. The motor shaft 22 passes through the rotor 21 and is connected to the assembly hole 112 of the connecting frame 111. Referring to Figure 24, the impeller 3 includes a first connecting plate 31, a second connecting plate 32, and a plurality of blades 33 evenly arranged between the first connecting plate 31 and the second connecting plate 32. As shown in Figure 23, an opening 34 is provided in the middle of the first connecting plate 31. The diameter of the opening 34 is larger than the diameter of the inlet 15, and an arc-shaped guide surface 35 for guiding water flow is provided at the end of the opening.

[0123] As shown in Figure 19, the two outlets are defined as the first outlet 161 and the second outlet 171, respectively. The first outlet 161 includes a main outlet 161a (hereinafter referred to as the first main outlet 161a) and a secondary outlet 161b (hereinafter referred to as the first secondary outlet 161b). The second outlet 171 includes a main outlet 171a (hereinafter referred to as the second main outlet 171a) and a secondary outlet 171b (hereinafter referred to as the second secondary outlet 171b). The main outlet and the secondary outlet are connected to each other. The main outlet of each outlet is connected to the pump chamber 14, 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 14. As shown in Figure 26, a reference tangent L is drawn along the edge of the cross-section of the pump chamber 14 (which has a circular cross-section). The direction of the reference tangent L is the tangent direction. Therefore, the opening orientation of the first main port 161a and the second main port 171b (i.e., the direction of the center line of the main port) should be parallel to their respective tangent directions (a = 0°), or at a small angle α with respect to the tangent direction, where α ≤ 30°. The opening orientation of the secondary port corresponding to the main port (i.e., the direction of the center line of the secondary port) is set perpendicular to or inclined to the opening orientation of the corresponding main port. When the secondary port is inclined to the opening orientation of its corresponding main port, the inclination angle is set to b, where 30° ≤ b ≤ 150°. Preferably, the center line of the secondary port passes through the center of the cross-section of the pump chamber 14. This arrangement ensures that when rotating along the tangent direction, water flows out from the main port and a small flow from its corresponding secondary port; when rotating against the tangent direction, all water flows out from the secondary port, and no water flows from the main port. To ensure the water pressure or flow rate at the main outlet, the cross-sectional area of ​​the main outlet must be greater than that of the corresponding secondary outlet, and the depth H of the pump chamber 14 must not be less than the diameter of the main outlet.

[0124] Specifically, the orientation of the first main inlet 161a is the direction of water flow when the impeller 3 rotates in the first direction, and the orientation of the second main inlet 171a is the direction of water flow when the impeller 3 rotates in the second direction. The first direction and the second direction are opposite. The first direction can be clockwise (motor 2 in the forward direction) and the second direction can be counterclockwise (motor 2 in the reverse direction), or the first direction can be counterclockwise and the second direction can be clockwise.

[0125] As shown in Figure 26, when motor 2 rotates clockwise, water mainly flows from the first main outlet 161a (high flow rate), while the second main outlet 171a does not flow (or flows at a low flow rate). The first auxiliary outlet 161b does not flow or flows at a low flow rate, while the second auxiliary outlet 171b flows at a low flow rate. As shown in Figure 27, when motor 28 rotates counterclockwise, water mainly flows from the second main outlet 171a (high flow rate), while the first main outlet 161a does not flow (or flows at a low flow rate); the first auxiliary outlet 161b flows at a low flow rate, while the second auxiliary outlet 171b does not flow or flows at a low flow rate. By controlling the forward and reverse rotation of motor 2, water can be distributed at different times (staggered flow) from the first main outlet 161a and the second main outlet 171a. All auxiliary outlets are connected to water tank 82, so the water volume in water tank 82 is not lost, and the impact on the water flow of the main outlets is minimal.

[0126] Example 6

[0127] The difference between this embodiment and embodiment five is that the second outlet does not have a secondary outlet, that is, the second outlet only has a second main outlet 171a and no second secondary outlet 171b.

[0128] When motor 2 rotates counterclockwise, water mainly flows out from the second main inlet 171a (high flow rate), while the first main inlet 161a does not flow out (or flows out at a low flow rate), and the first auxiliary inlet 161b flows out at a low flow rate. This process primarily involves flushing, with little or no drainage. Conversely, when motor 3 rotates clockwise, water mainly flows out from the first main inlet 161a (high flow rate), while the second main inlet 171a flows out at a low flow rate, and the first auxiliary inlet 161b does not flow out or flows out at a low flow rate. This process primarily flushes the toilet while also providing a small flow of flushing water, resulting in a better flushing effect.

[0129] Example 7

[0130] As shown in Figure 28, this embodiment discloses a toilet that employs the flushing system described in Embodiment 5 or Embodiment 6. The toilet includes a toilet body 8, which has a toilet chamber 81 and a water storage container. The water storage container is located at the rear end of the toilet chamber 81 and can be a recessed water chamber or a raised water tank, etc. In this embodiment, the water storage container is a recessed water chamber. Several washing holes are provided on the wall of the toilet chamber, and a drain outlet 812 is provided at the bottom of the toilet chamber. In this embodiment, the recessed water chamber is used as the water tank 82 of the flushing system, that is, the water tank 82 of the flushing system is integrated into the toilet body 8. This arrangement maximizes the volume of the water tank 82, ensuring sufficient water supply, which is particularly suitable for occasions where the toilet is used frequently, and also facilitates the modification of the flushing system of existing toilets.

[0131] The washing pipe 6 connects to the washing hole, and the drain pipe 52 connects to the toilet chamber 81 through the drain outlet 812.

[0132] Example 8

[0133] As shown in Figure 29, the difference between this embodiment and Embodiment 7 is that the portion of the toilet body 8 located at the rear end of the toilet chamber 41 is hollowed out to form an installation cavity, and the water tank 82 of the flushing system is installed in the installation cavity. In this embodiment, the flushing system of Embodiment 6 or Embodiment 7 can be used. With this configuration, the water tank 8 is independently installed, and the water tank 8 can be designed with a smaller volume, which is sufficient to ensure the water consumption for a single flush. This frees up more space in the installation cavity for installing functional components such as smart toilet components.

[0134] Example 9

[0135] As shown in Figures 30-38, this embodiment discloses a toilet, which includes a toilet body 8, a toilet chamber 81, a plurality of washing holes 811 on the wall surface of the toilet chamber 81, and a drain outlet 812 at the bottom of the toilet chamber 81. The toilet in this embodiment uses the following flushing system.

[0136] Specifically, the flushing system includes a water tank, a water pump 1, and flushing pipes. The water tank can be a separate water tank 82 or a recessed water chamber integrally formed with the toilet body 8. An installation cavity is provided on the toilet body 8, and the flushing system is installed in the installation cavity.

[0137] The water tank is equipped with a container inlet and an outlet 824. An inlet valve 7 is installed at the container inlet to facilitate water intake control and maintain a stable working water level. The outlet 824 is located at the bottom of the water tank or on a side wall near the bottom. A water pump 1 is located outside the water tank, and its inlet 15 is connected to the outlet 824 via an outlet pipe 822. The water pump 1 has two outlets: a drain outlet 191 and a flushing outlet 192. The flushing system includes a drain pipe 52 and a flushing pipe 6. The drain outlet 191, drain pipe 52, sewage outlet 812, and toilet chamber 81 are connected in sequence, as are the flushing outlet 192, flushing pipe 6, and flushing hole 811.

[0138] By placing the water pump 1 externally within the water tank, the water pump 1 does not need to be fixed inside the tank, simplifying the tank's structure and facilitating its molding. Furthermore, it eliminates the problem of water pump 1 damaging the tank and causing leaks. Additionally, because the water pump 1 is externally located within the tank, the motor 2 and wiring on the water pump 1 do not need to be submerged in water, allowing for the use of a water pump 1 with a lower waterproof insulation rating, thus reducing costs.

[0139] In this embodiment, only the drain pipe 52 is equipped with an anti-siphon port 53, which connects to the cavity of the drain pipe 52. An overflow pipe 54 is connected to the anti-siphon port 53, and the anti-siphon port 53 is connected to the water tank through the overflow pipe 54. A return port 823 connected to the overflow pipe 54 can be provided on the water tank. The return port 823 runs through the inside and outside of the water tank, and the return port 823 is set higher than the working water level of the water tank, thereby achieving the anti-siphon effect. The outlet of the washing pipe 6 is set higher than the working water level of the water tank, that is, the washing hole 811 is set higher than the working water level of the water tank, so that the washing pipe 6 will not have a siphon problem.

[0140] In this embodiment, the water pump 1 is also designed to achieve different water output controls. Specifically, the water pump 1 includes a pump body 10, a motor 2, and an impeller 3. The pump body 10 has a pump chamber 14. The water inlet 15, the drain outlet 191, and the scrubbing outlet 192 of the water pump 1 are all located on the outlet cover 1111 of the pump body 10, and the water inlet 15, the drain outlet 191, and the scrubbing outlet 192 of the water pump 1 are all connected to the pump chamber 14. The impeller 3 is built into the pump chamber 14, and the motor 2 drives the impeller 3 to rotate. The motor 2 can rotate in a first direction or a second direction. When the first direction is clockwise, the second direction is counterclockwise, and when the first direction is counterclockwise, the second direction is clockwise. The drain outlet 191 faces the direction of water flow when the motor 2 rotates in the first direction, while the wash outlet 192 faces the direction of water flow when the motor 2 rotates in the second direction. In this way, when the motor 2 rotates in the first direction, the drain outlet 191 flows more smoothly and can achieve a large flow of water, while the wash outlet 192 is less smooth and flows only a small flow of water or no water at all. When the motor 2 rotates in the second direction, the wash outlet 192 flows more smoothly and can achieve a large flow of water, while the drain outlet 191 is less smooth and flows only a small flow of water or no water at all. By controlling the forward and reverse rotation of motor 2, and taking into account factors such as motor speed, outlet diameter, and slight orientation deviation, the water output of drainage outlet 191 and washing outlet 192 can be controlled. For example, washing can be performed first, followed by drainage, and water can be output simultaneously, or washing can be performed first and then drainage (small flow of water output can be considered as no water output). The control is convenient, and there is no need to set up an additional water output on / off structure. The structure of water pump 1 is simpler, and the manufacturing and maintenance costs of water pump 1 are lower.

[0141] Example 10

[0142] As shown in Figures 39-41, the difference between this embodiment and Embodiment Nine is that the anti-siphon port 53 on the drainage pipe 52 no longer connects to the water tank via the overflow pipe 54, but instead connects to the washing pipe 6 via the anti-siphon port 53 on the drainage pipe 52. The outlet of the washing pipe 6 is still set above the working water level of the water tank. To facilitate connection, a pipe fitting 42 is added. This pipe fitting 42 has a first straight pipe 421, a second straight pipe 422, and a connecting pipe 423. The connecting pipe 423 connects the first straight pipe 421 and the second straight pipe 422. The first straight pipe 421 is connected in series to the drainage pipe 52 (that is, the drainage pipe 52 is divided into two sections, one of which is connected to one end of the first straight pipe 421, and the other end of the drainage pipe 52 is connected to the other end of the first straight pipe 421). The second straight pipe 422 is connected in series to the washing pipe 6 (connected in the same way as above). At this time, the connecting pipe 423 is the anti-siphon port 53 of the drainage pipe 52.

[0143] To ensure the anti-siphon effect and for ease of installation, it is preferable that the second straight pipe 422 is higher than the first straight pipe 421. Furthermore, the pipe connector 42 can also serve as a fixed node in the middle section of the flushing pipe, allowing the pipe connector 42 to connect to the toilet body 8, thus improving the stability of the flushing pipe. Of course, the second straight pipe 422 can also be parallel to the first straight pipe 421.

[0144] The advantage of this embodiment is that there is no need to install an overflow pipe 54, and there is no need to install a return port 823 on the water tank.

[0145] In other embodiments, an anti-siphon port 53 may also be provided on the flushing pipe 6, and this anti-siphon port 53 is also connected to the water tank via an overflow pipe 54. The specific arrangement can be referred to the drain pipe 52, and will not be described again. This arrangement can ensure that the flushing pipe will not have a siphon problem.

Claims

1. A flushing control method for an intelligent toilet, characterized in that, The smart toilet is equipped with a water pump, a drainage channel, and a washing channel. The motor of the water pump can rotate in a first direction or a second direction. The flushing control method includes the following process: The motor is controlled to rotate in the second direction, causing the water pump to drive water flow into the washing channel to wash, replenish, or lubricate the upper part of the toilet bowl; or the motor is controlled to rotate in the first direction, causing the water pump to drive water flow into both the drainage channel and the washing channel simultaneously to flush the bottom of the toilet bowl and rinse the upper part 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 water pump includes a pump body, an impeller and the motor. The pump body is provided with a pump chamber, at least one water inlet, a first water outlet channel and a second water outlet channel. The water inlet, the first water outlet channel and the second water outlet channel are all connected to the pump chamber. The impeller is built into the pump chamber, and the motor drives the impeller to rotate in a first direction or a second direction; the first water outlet channel includes a first water outlet, the opening of the first water outlet is parallel to the tangent direction of the corresponding outer edge of the pump chamber, or is set at an angle α with the tangent direction, the angle α ≤ 30°; and the orientation of the first water outlet is along the water flow direction of the impeller rotating in the first direction; The second water outlet channel is provided with one or more second water outlets, so that when the impeller rotates in the first direction or the second direction, at least one second water outlet will discharge water; The first water outlet channel is connected to the drainage channel; the second water outlet channel is connected to the washing channel.

3. The flushing control method for a smart toilet as described in claim 2, characterized in that: The second water outlet channel includes a second water outlet A and a second water outlet B. The opening of the second water outlet A is set at an angle β with the tangent direction of the outer edge of the corresponding pump cavity, wherein the angle β is greater than α. The opening of the second outlet B is parallel to the tangent direction of the corresponding outer edge of the pump chamber, or is set at an angle α with the tangent direction, and the orientation of the second outlet B is along the water flow direction of the impeller rotating in the second direction.

4. The flushing control method for a smart toilet as described in claim 2, characterized in that: The second water outlet channel includes a second water outlet B and a second water outlet C; The opening of the second outlet B is parallel to the tangent direction of the corresponding outer edge of the pump chamber, or is set at an angle α with the tangent direction, and the orientation of the second outlet B is along the water flow direction of the impeller rotating in the second direction. The second outlet C is oriented parallel to the tangent direction of the corresponding outer edge of the pump chamber, or at an angle α with the tangent direction, and the orientation of the second outlet C is along the water flow direction as the impeller rotates in the first direction.

5. The flushing control method for a smart toilet as described in claim 2, characterized in that: The second water outlet channel is provided with only a second water outlet A. The opening of the second water outlet A is at an angle β with the tangent direction of the outer edge of the corresponding pump cavity, where β > α.

6. The flushing control method for an intelligent toilet as described in claim 3 or 5, characterized in that: The included angle α ≤ 10°, and the included angle β > 45°.

7. The flushing control method for the smart toilet as described in claim 2, characterized in that: When the impeller rotates in the first direction, the water flow rate of the second outlet channel is >5L / min; when the impeller rotates in the second direction, the water flow rate of the second outlet channel is >8L / min.

8. The flushing control method for a smart toilet as described in claim 2, characterized in that: The drainage channel is a drainage pipe, and the washing channel is a washing pipe; The smart toilet includes a toilet body, a water inlet valve, and a water pump. The toilet body includes a toilet bowl and a water tank. The toilet bowl has several washing holes on its wall and a drain outlet at its bottom. The water tank is integrally formed at the rear of the toilet bowl or is separately installed and fixed at the rear of the toilet bowl. The water tank has a container inlet, and the water inlet valve is installed on the container inlet. The water pump is placed inside the water tank. The first water outlet channel of the water pump is connected to one end of the drain pipe, and the other end of the drain pipe is connected to the sewage outlet. The second water outlet channel of the water pump is connected to one end of the washing pipe, and the other end of the washing pipe is connected to the washing hole. At least the drain pipe is provided with an anti-siphon port, and the anti-siphon port is connected to the inside of the water tank. The anti-siphon port is set higher than the working water level of the water tank.

9. A flushing control method for an intelligent toilet, characterized in that, The smart toilet is equipped with a water pump, a drainage channel, and a washing channel. The motor of the water pump can rotate in a first direction or a second direction. The flushing control method includes the following process: The motor is controlled to rotate in the second direction to put the smart toilet into the washing mode; the motor is controlled to rotate in the first direction to put the smart toilet into the draining mode; wherein, in the draining mode, the water pump drives water flow into the drain channel to flush the bottom of the toilet bowl; in the washing mode, the water pump drives water flow into the washing channel to flush the top 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.

10. A smart toilet, characterized in that, Includes the toilet body, inlet valve, water pump, drain pipe, and wash pipe; The toilet body includes a toilet chamber and a water storage container. The water storage container is a water tank or a sunken water chamber. The toilet chamber has a washing hole on its wall and a drain outlet at its bottom. The water storage container has a container inlet. The water inlet valve is located at the container inlet. The water pump is placed in a water storage container. The water pump includes a pump body, a motor and an impeller. The pump body is provided with a pump chamber, a drain outlet, a scrubbing outlet and at least one inlet. The inlet, drain outlet and scrubbing outlet are all connected to the pump chamber. The impeller is built into the pump chamber. The motor drives the impeller to rotate in a first direction or in a second direction. The drain outlet is connected to one end of the drain pipe, the wash outlet is connected to one end of the wash pipe, and the other end of the drain pipe passes through or over the side wall of the water storage container and connects to the toilet's drain outlet; the other end of the wash pipe is connected to the wash hole.

11. The smart toilet as described in claim 10, characterized in that: In the drainage pipe and the washing pipe, at least the drainage pipe is provided with an anti-siphon port, and the anti-siphon port is connected to the water storage container. The anti-siphon port is set higher than the working water level of the water storage container. The direction of the drainage outlet is the direction of water flow when the motor rotates in the first direction, and the direction of the washing outlet is the direction of water flow when the motor rotates in the second direction.

12. The smart toilet as described in claim 10 or 11, characterized in that: Both the drainage pipe and the washing pipe include an inner pipe, a connecting fitting, and an outer pipe. The inner pipe is placed inside the water tank, and the outer pipe is placed outside the water tank. The inner pipe is connected to the outer pipe via the connecting fitting. The connecting fitting is integrally formed with the water tank, or the connecting fitting is detachably connected to the tank wall, or the connecting fitting is independent of the water tank. The anti-siphon port is provided on the connecting fitting. An "L"-shaped bend is provided above the connecting pipe fitting. One end of the bend is connected to the inner cavity of the connecting pipe fitting, and the other end of the bend is an anti-siphon port. The water tank has a through-hole in the tank wall. The outer diameter of the connecting pipe is matched with the diameter of the mounting hole, and the connecting pipe is inserted into the mounting hole. Both the outer pipe and the inner pipe are inserted into the connecting pipe, and the outer pipe, the bend, and the mounting hole cooperate to limit the connecting pipe to the tank wall of the water tank. Alternatively, the outer pipe, the inner pipe, and the mounting hole cooperate to limit the connecting pipe to the tank wall of the water tank. The water tank is also equipped with an overflow outlet.

13. A flushing system, characterized in that: This includes water tanks, water pumps, drainage pipes, and washing pipes; The water pump is placed inside the water tank. The water pump includes a pump body, a motor and an impeller. The pump body is provided with a pump chamber, a first outlet, a second outlet and at least one inlet. The inlet is connected to the pump chamber. The impeller is built into the pump chamber and the motor drives the impeller to rotate. Both the first and second water outlets include a main outlet, with both ends of the main outlet being open-ended and connected to the pump chamber. The orientation of the main outlet corresponding to the first water 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 water outlet is the direction of water flow when the motor rotates in a second direction. The first and second directions are opposite. At least one of the first and second water outlets has a secondary outlet on the main outlet corresponding to the first water outlet. Both ends of the secondary outlet are open-ended and connected to the main outlet. The connection point between the secondary outlet and the main outlet is located on the side of the main outlet closer to the connection end of the pump chamber. The main outlet corresponding to the first outlet is connected to one end of the drain pipe, and the main outlet corresponding to the second outlet is connected to one end of the washing pipe. The other ends of the drain pipe and the washing pipe extend to the outside of the water tank. All the auxiliary outlets are connected to the inner cavity of the water tank. At least the drain pipe is provided with an anti-siphon port, and the anti-siphon port is connected to the inner cavity of the water tank. The anti-siphon port is set higher than the working water level of the water tank.

14. The flushing system according to claim 13, characterized in that: The main port is oriented parallel to the tangent of the outer edge of the pump cavity, or at an angle α to the tangent, wherein the angle α ≤ 30°; the secondary port is oriented perpendicularly to or at an angle to the corresponding main port.

15. The flushing system according to claim 13, characterized in that: Both the drainage pipe and the washing pipe include an inner pipe, a connecting fitting, and an outer pipe. The inner pipe is placed inside the water tank, and the outer pipe is placed outside the water tank. The inner pipe is connected to the outer pipe via the connecting fitting. The connecting fitting is integrally formed with the water tank, or the connecting fitting is detachably connected to the tank wall, or the connecting fitting is independent of the water tank. The anti-siphon port is provided on the connecting fitting.

16. The flushing system according to claim 13, characterized in that: An "L"-shaped bend is provided above the connecting pipe fitting. One end of the bend is connected to the inner cavity of the connecting pipe fitting, and the other end of the bend is an anti-siphon port.

17. The flushing system according to claim 15, characterized in that: The water tank has a through-hole in the tank wall. The outer diameter of the connecting pipe is matched with the diameter of the mounting hole, and the connecting pipe is inserted into the mounting hole. Both the outer pipe and the inner pipe are inserted into the connecting pipe, and the outer pipe, the bend, and the mounting hole cooperate to limit the connecting pipe to the tank wall of the water tank. Alternatively, the outer pipe, the inner pipe, and the mounting hole cooperate to limit the connecting pipe to the tank wall of the water tank.

18. The flushing system according to claim 13, characterized in that: The water pump is detachably connected to the bottom of the inner cavity of the water tank; the water tank is provided with a container inlet, and the container inlet is provided with an inlet valve; the water tank is provided with an overflow port.

19. The flushing system according to claim 14, characterized in that: The cross-sectional area of ​​the main port is larger than that of the secondary port, the depth of the pump cavity 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, where 30°≤b≤150°; the centerline of the secondary port passes through the center of the cross-section of the pump cavity.

20. A flushing system, characterized in that: The system includes a water tank, a water pump, and a flushing pipe. The water tank has an outlet on its bottom or a side wall near the bottom. The water pump is located outside the water tank, and its inlet is connected to the outlet of the water tank. The flushing pipe includes a drain pipe and a washing pipe. The water pump has two outlets: a drain outlet and a washing outlet. The drain outlet is connected to the drain pipe, and the washing outlet is connected to the washing pipe. The water pump includes a pump body, a motor, and an impeller. The pump body has a pump chamber, and the inlet, outlet, and scrubbing outlet are all located on the pump body, connecting to the pump chamber. The impeller is built into the pump chamber, and the motor drives the impeller to rotate. The motor can rotate in a first direction or a second direction. When the first direction is clockwise, the second direction is counterclockwise; when the first direction is counterclockwise, the second direction is clockwise. The outlet faces the direction of the water flow when the motor rotates in the first direction, and the scrubbing outlet faces the direction of the water flow when the motor rotates in the second direction.

21. The flushing system according to claim 20, characterized in that: Only the drainage pipe is equipped with an anti-siphon inlet; the anti-siphon inlet is connected to the water tank through a pipe, and the connection point between the pipe and the water tank is set higher than the working water level of the water tank; or, the anti-siphon inlet is connected to a washing pipe; the outlet of the washing pipe is set higher than the working water level of the water tank. Alternatively, both the drainage pipe and the washing pipe are equipped with anti-siphon ports, and the anti-siphon ports are connected to the water tank through pipes, with the connection point between the pipes and the water tank set above the working water level of the water tank.

22. The flushing system according to claim 21, characterized in that: The water tank is provided with a return port for communicating with the anti-siphon inlet. The return port extends through the inside and outside of the water tank and is set above the working water level of the water tank.

23. The flushing system according to claim 21, characterized in that: It also includes a pipe fitting having a first straight pipe, a second straight pipe, and a connecting pipe, the connecting pipe connecting the first straight pipe and the second straight pipe; the first straight pipe is connected in series to the drain pipe, and the second straight pipe is connected in series to the wash pipe; the pipe fitting is set above the working water level of the water tank; the connecting pipe is an anti-siphon outlet for the drain pipe.

24. The flushing system according to claim 23, characterized in that: The second straight pipe is set parallel to or higher than the first straight pipe.

25. The flushing system according to claim 20, characterized in that: The water tank is also equipped with a container inlet, and the container inlet is equipped with an inlet valve.

26. A toilet employing the flushing control method according to any one of claims 1-9, or a toilet employing the flushing system according to any one of claims 13-25, characterized in that: The toilet includes a toilet body, which includes a toilet chamber and a water storage container. The water storage container is configured as a water tank for a flushing system. The toilet chamber has several washing holes on its wall surface and a drain outlet at the bottom. The drain pipe is connected to the toilet chamber through the drain outlet, and the washing pipe is connected to the washing holes.

27. A toilet employing the flushing control method according to any one of claims 1-9, or a toilet employing the flushing system according to any one of claims 13-25, characterized in that: The toilet includes a toilet body, which includes a toilet seat cavity and an installation cavity. The water tank of the flushing system is located in the installation cavity. The toilet seat cavity has several washing holes on its wall surface and a drain outlet at the bottom. The drain pipe is connected to the toilet seat cavity through the drain outlet, and the washing pipe is connected to the washing holes.

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