A temperature-sensing water flow control valve, a fixed plate, a smart toilet, and a control method.

Abstract

This invention discloses a temperature-sensing water flow control valve, a fixed plate, a smart toilet, and a control method. It includes a first cleaning flow path, a second cleaning flow path, a first drainage flow path, a second drainage flow path, a first self-cleaning port, and a second self-cleaning port, all arranged in a ring on the fixed plate. Inside the first and second cleaning flow paths, a first connecting flow path and a second connecting flow path are also provided. The first connecting flow path connects the first cleaning flow path and the first drainage flow path; the second connecting flow path connects the second cleaning flow path and the second drainage flow path. This invention is convenient to use. Through the first drainage flow path connected to the first cleaning flow path and the second drainage flow path connected to the second cleaning flow path, cold water in the downstream connecting pipes, control valve, spray pipe, and nozzle is quickly discharged before cleaning, ensuring that the water is warm from the first drop during cleaning, avoiding a cold feeling for the user and guaranteeing a better user experience.

Description

Technical Field

[0001] This invention relates to the field of smart toilets, specifically to a temperature-sensing water flow control valve, a fixed plate, a smart toilet, and a control method. Background Technology

[0002] With the development of science and technology and the improvement of living standards, hygiene devices such as smart toilets are gradually becoming known to the public and are beginning to enter ordinary households. The comfortable experience and rich features of smart toilets are increasingly favored by consumers. Smart toilets generally have a water washing function for cleaning specific areas of the body (such as the anus). The general steps of the washing process are as follows: the water inlet unit is opened, the washing water is heated by the heating unit, then the water flow path is selected by the water control valve, and finally it is sprayed onto the body area by the cleaning nozzle unit. Because residual water remains in the pipes after each localized washing, the residual water in the downstream pipes of the heating unit cannot be heated. If the residual water in the downstream pipes is not drained, the first drop of washing water that comes into contact with the body area will hardly reach a comfortable temperature (above 37°C), causing a momentary cold sensation for the user.

[0003] The current common solution is to drain a small amount of residual water before the cleaning water reaches the human body, thereby increasing the temperature of the first drop of water that comes into contact with the body. However, due to the limited time for draining residual water (CBMF15 China Building Materials Association Standard: 6.2.1 Nozzle extension time not exceeding 8s), it is difficult to drain it completely quickly, resulting in the problem that the temperature of the first drop of water sprayed from the nozzle is relatively low (below 32℃).

[0004] Obviously, increasing the time for draining residual water can effectively solve the problem of the first drop of cold water. Correspondingly, it is necessary to shorten the extension time of the spray bar to ensure that the total time meets the requirements. However, this places higher demands on the drive system and significantly increases costs.

[0005] Based on the above, this invention proposes a temperature-sensing water flow control valve, a fixed plate, a smart toilet, and a control method, which can effectively solve the above problems without increasing costs. Summary of the Invention

[0006] The purpose of this invention is to provide a temperature-sensitive water flow control valve, a fixed plate, a smart toilet, and a control method. This invention has an ingenious structure and is easy to use. Through a first drainage path connected to a first cleaning flow path and a second drainage path connected to a second cleaning flow path, cold water in the downstream connecting pipes, control valve, spray pipe, and nozzle can be quickly discharged before cleaning, ensuring that the water is warm from the very first drop during cleaning, avoiding a cold sensation for the user and guaranteeing a better user experience.

[0007] This invention is achieved through the following technical solution:

[0008] A control valve plate includes a first cleaning flow path, a second cleaning flow path, a first drain flow path, a second drain flow path, a first self-cleaning port, and a second self-cleaning port, all arranged in an annular shape on the plate. A first connecting flow path and a second connecting flow path are also provided inside the first and second cleaning flow paths. The first connecting flow path connects the first cleaning flow path and the first drain flow path. The second connecting flow path connects the second cleaning flow path and the second drain flow path.

[0009] The present invention, through a first drainage path connected to the first cleaning flow path and a second drainage path connected to the second cleaning flow path, can drain the cold water in the control valve and nozzle before cleaning, ensuring that the water sprayed during cleaning is warm, avoiding the user from feeling cold during cleaning, and ensuring better use results.

[0010] Preferably, the first cleaning flow path, the first drainage flow path, the first self-cleaning port, and the first connecting flow path are arranged symmetrically with the second cleaning flow path, the second drainage flow path, the second self-cleaning port, and the second connecting flow path; and the first drainage flow path and the second drainage flow path are respectively arranged on both sides of the moving plate reset point.

[0011] Preferably, the first self-cleaning port is disposed between the first cleaning flow path and the first drainage flow path, and the second self-cleaning port is disposed between the second cleaning flow path and the second drainage flow path; the first cleaning flow path and the second cleaning flow path are respectively provided with a first flow path water outlet and a second flow path water outlet; the first self-cleaning port and the second self-cleaning port are respectively provided with a first self-cleaning through hole and a second self-cleaning through hole; the first flow path water outlet is connected to the first cleaning nozzle; the second flow path water outlet is connected to the second cleaning nozzle; the first self-cleaning through hole and the second self-cleaning through hole are both connected to the self-cleaning nozzle.

[0012] Preferably, the width of the first cleaning flow path gradually increases from one end of the first cleaning flow path near the first self-cleaning port to the other end, and the water outlet of the first flow path is located at the end of the first cleaning flow path away from the first self-cleaning port; the width of the second cleaning flow path gradually increases from one end of the second cleaning flow path near the second self-cleaning port to the other end, and the water outlet of the second flow path is located at the end of the second cleaning flow path away from the second self-cleaning port.

[0013] Preferably, one end of the first connecting flow path is connected to the first drainage flow path, and the other end is connected to the end of the first cleaning flow path away from the first self-cleaning port, and the width of the first connecting flow path is not less than the width of the end of the first cleaning flow path away from the first self-cleaning port; one end of the second connecting flow path is connected to the second drainage flow path, and the other end is connected to the end of the second cleaning flow path away from the second self-cleaning port, and the width of the second connecting flow path is not less than the width of the end of the second cleaning flow path away from the second self-cleaning port.

[0014] Preferably, the center of the plate is also provided with a positioning hole.

[0015] A control valve includes a fixed plate and a movable plate as described above. The movable plate is rotatably connected to the fixed plate via a rotating shaft and a positioning hole, and the movable plate is driven by a motor. A water passage hole is provided on the movable plate at a position corresponding to the movable plate's reset point, and the water passage hole communicates with a water inlet unit. The water inlet unit includes a water inlet module, a heating module, and a control valve.

[0016] Preferably, the water passage is fan-shaped; the width of the water passage is greater than the width of the end of the first cleaning flow path away from the first self-cleaning port; the width of the water passage is greater than the width of the end of the second cleaning flow path away from the second self-cleaning port; the width of the water passage is greater than the width of the first self-cleaning port and the second self-cleaning port; the length of the water passage (21) is greater than the interval between the first drainage flow path (13) and the second drainage flow path (14). After each cleaning function is completed, the water passage (21) will reset to the reset point between the first drainage flow path (13) and the second drainage flow path (14).

[0017] A smart toilet includes a water inlet module, a heating module, a button panel, a central control module, a detection module, a nozzle assembly, a washing rod, and the aforementioned control valve; the water inlet module is connected to the water inlet via a water inlet pipe; the detection module includes at least a water temperature monitor installed in the heating module; the nozzle assembly is installed inside the washing rod, and the nozzle assembly includes a first cleaning nozzle communicating with a first flow path water outlet, a second cleaning nozzle communicating with a second flow path water outlet, and a self-cleaning nozzle, the self-cleaning nozzle communicating with a first self-cleaning through hole and a second self-cleaning through hole.

[0018] A method for controlling a smart toilet, comprising the following steps:

[0019] Step S1: Before operating the button panel, the water inlet is positioned at the reset point between the first and second drainage paths, and the water inlet is simultaneously connected to both the first and second drainage paths; when the first cleaning mode is activated, the central control module first sends a water inlet command to the water inlet module, and then sends a heating command to the heating module. The water in the water path is heated, and the heating module is controlled in a closed loop by the water temperature monitor to keep the water temperature stable within the preset temperature range;

[0020] Step S2: The central control module sends a rotation command to the control valve, driving the water passage on the moving plate to rotate to the first drainage flow path and stay there, and discharges the cold water downstream of the first cleaning flow path and the first flow path outlet hole to the first cleaning nozzle through the first connecting flow path;

[0021] Step S3: When the preset cold water drainage time is reached, the central control module sends a rotation command to the control valve again, driving the water passage to rotate to the first self-cleaning port and stay there to self-clean the cleaning rod. At the same time, the central control module sends a command to the nozzle assembly, and the nozzle extends.

[0022] Step S4: When the nozzle reaches the target position, the central control module sends a rotation command to the control valve, driving the water passage from the first self-cleaning port to the target position on the first cleaning flow path and stopping there. The first cleaning nozzle then starts to continuously spray warm water.

[0023] Step S5: When the preset cleaning time is reached, the central control module sends a rotation command to the control valve, driving the water passage to rotate back to the first self-cleaning port and stay there. At the same time, the central control module sends a command to the nozzle assembly, the nozzle retracts, and the self-cleaning nozzle continues to spray water for a period of time to clean the nozzle.

[0024] Step S6: When the preset self-cleaning time is reached, the central control module sends a rotation command to the control valve, driving the water passage from the first self-cleaning port to the reset point between the first drainage path and the second drainage path, and the first cleaning mode ends.

[0025] The control method for the second cleaning mode differs from steps S1 to S6 above in that the direction of rotation of the moving plate is different.

[0026] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0027] The temperature-sensing water flow control valve, fixed plate, smart toilet, and control method of the present invention have an ingenious structure and are easy to use. Through the first drainage flow path connected to the first cleaning flow path and the second drainage flow path connected to the second cleaning flow path, cold water in the control valve and the nozzle can be discharged before cleaning, ensuring that the water sprayed during cleaning is warm, avoiding the user from feeling cold during cleaning, and ensuring better use.

[0028] The control method of the present invention not only ensures that hot water can be sprayed directly during cleaning, guaranteeing a better user experience and avoiding coldness for the user; it also controls the drainage and self-cleaning process in a short time, preventing the user from waiting too long. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the plate described in this invention;

[0030] Figure 2 This is a bottom view of the moving disk structure described in this invention;

[0031] Figure 3 This is a wireframe diagram of the functional structural unit of the smart toilet described in this invention;

[0032] Figure 4 This is a schematic diagram illustrating the working process of the smart toilet described in this invention;

[0033] Figure 5 The water passage hole described in this invention is located in Figure 4 A schematic diagram when the position is 1#.

[0034] Figure 6 The water passage hole described in this invention is located in Figure 4 A diagram showing the position when it is in position 2;

[0035] Figure 7 The water passage hole described in this invention is located in Figure 4 A schematic diagram when the middle position is 3#;

[0036] Figure 8 The water passage hole described in this invention is located in Figure 4 A schematic diagram when the 4# position is in the middle;

[0037] Figure 9 The water passage hole described in this invention is located in Figure 4 A diagram showing the position at 5#.

[0038] Figure 10 The water passage hole described in this invention is located in Figure 4 A diagram showing the position of 6# in the middle;

[0039] Figure 11 The water passage hole described in this invention is located in Figure 4 A diagram showing the position at 7#.

[0040] Figure 12 The water passage hole described in this invention is located in Figure 4 A diagram showing the position at 8#.

[0041] Figure 13 The water passage hole described in this invention is located in Figure 4 A schematic diagram when the 9# position is in the middle. Detailed Implementation

[0042] To enable those skilled in the art to better understand the technical solutions of the present invention, preferred embodiments of the present invention are described below in conjunction with specific examples. However, it should be understood that the accompanying drawings are for illustrative purposes only and should not be construed as limiting the present patent. For better illustration of this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting the present patent.

[0043] Example 1:

[0044] like Figure 1 As shown, a control valve plate includes a first cleaning flow path 11, a second cleaning flow path 12, a first drain flow path 13, a second drain flow path 14, a first self-cleaning port 15, and a second self-cleaning port 16, all arranged in a ring on the plate 1. A first connecting flow path 17 and a second connecting flow path 18 are also provided inside the first cleaning flow path 11 and the second cleaning flow path 12. The first connecting flow path 17 connects the first cleaning flow path 11 and the first drain flow path 13; the second connecting flow path 18 connects the second cleaning flow path 12 and the second drain flow path 14.

[0045] The present invention, through a first drainage path 13 connected to the first cleaning flow path 11 and a second drainage path 14 connected to the second cleaning flow path 12, can quickly drain the cold water in the control valve and nozzle before cleaning, ensuring that the water sprayed during cleaning is warm, avoiding the user feeling cold in the first spray of water, and ensuring better use effect.

[0046] The first cleaning flow path 11 corresponds to a feminine wash, i.e., the first cleaning mode; the second cleaning flow path 12 corresponds to a posterior wash, i.e., the second cleaning mode.

[0047] Furthermore, in another embodiment, the first cleaning flow path 11, the first drainage flow path 13, the first self-cleaning port 15, and the first connecting flow path 17 are symmetrically arranged with the second cleaning flow path 12, the second drainage flow path 14, the second self-cleaning port 16, and the second connecting flow path 18; and the first drainage flow path 13 and the second drainage flow path 14 are respectively arranged on both sides of the moving plate reset point.

[0048] The symmetrical arrangement ensures that the two cleaning modes differ only in the direction of rotation of the moving plate during operation, simplifying the operation steps and improving cleaning efficiency. The first drainage path 13 and the second drainage path 14 are respectively set on both sides of the moving plate reset point to ensure that the cleaning process can quickly enter the drainage process when started, reducing the user's waiting time and improving the user experience.

[0049] Furthermore, in another embodiment, the first self-cleaning port 15 is disposed between the first cleaning flow path 11 and the first drainage flow path 13, and the second self-cleaning port 16 is disposed between the second cleaning flow path 12 and the second drainage flow path 14; the first cleaning flow path 11 and the second cleaning flow path 12 are respectively provided with a first flow path outlet hole 111 and a second flow path outlet hole 121; the first self-cleaning port 15 and the second self-cleaning port 16 are respectively provided with a first self-cleaning through hole 151 and a second self-cleaning through hole 161; the first flow path outlet hole 111 is connected to the first cleaning nozzle; the second flow path outlet hole 121 is connected to the second cleaning nozzle; the first self-cleaning through hole 151 and the second self-cleaning through hole 161 are both connected to the self-cleaning nozzle.

[0050] The first drainage flow path 13, the first self-cleaning port 15, and the first cleaning flow path 11 are arranged according to the process steps of drainage-self-cleaning-cleaning. This not only simplifies the control process, but also reduces the rotation angle between different processes, thereby shortening the switching time between different processes, reducing the user's waiting time, and providing a better user experience. Furthermore, the rotation direction is the same during operation, and a complete cleaning action can be achieved with just one outgoing stroke, reducing the wear of the fixed plate during use and extending its service life.

[0051] Furthermore, in another embodiment, the width of the first cleaning flow path 11 gradually increases from one end of the first cleaning flow path 11 near the first self-cleaning port 15 to the other end, and the first flow path outlet 111 is located at the end of the first cleaning flow path 11 away from the first self-cleaning port 15; the width of the second cleaning flow path 12 gradually increases from one end of the second cleaning flow path 12 near the second self-cleaning port 16 to the other end, and the second flow path outlet 121 is located at the end of the second cleaning flow path 12 away from the second self-cleaning port 16.

[0052] With the above settings, the first cleaning flow path 11 and the second cleaning flow path 12 are ensured to have adjustable settings. The first flow path water outlet 111 and the second flow path water outlet 121 are respectively set at the maximum width of the first cleaning flow path 11 and the second cleaning flow path 12, so as to ensure the maximum cleaning power when the maximum setting is reached.

[0053] Furthermore, in another embodiment, one end of the first connecting flow path 17 is connected to the first drainage flow path 13, and the other end is connected to the end of the first cleaning flow path 11 away from the first self-cleaning port 15, and the width of the first connecting flow path 17 is equal to the width of the end of the first cleaning flow path 11 away from the first self-cleaning port 15; one end of the second connecting flow path 18 is connected to the second drainage flow path 14, and the other end is connected to the end of the second cleaning flow path 12 away from the second self-cleaning port 16, and the width of the second connecting flow path 18 is equal to the width of the end of the second cleaning flow path 12 away from the second self-cleaning port 16.

[0054] By setting the above parameters, we can ensure that the system drains at the maximum flow rate, ensuring a faster drainage speed, reducing user waiting time, and guaranteeing a better user experience.

[0055] Furthermore, in another embodiment, the center of the fixed plate 1 is also provided with a positioning hole 19.

[0056] Example 2:

[0057] like Figure 1 and 2 As shown, a control valve includes a fixed plate 1 and a movable plate 2 according to embodiment 1. The movable plate 2 is rotatably connected to the fixed plate 1 via a rotating shaft and a positioning hole 19, and the movable plate 2 is driven by a motor. A water passage hole 21 is provided on the movable plate 2 at a position corresponding to the movable plate reset point, and the water passage hole 21 is connected to a water inlet unit.

[0058] The operating mode of the control valve is switched by the moving plate 5.

[0059] Furthermore, in another embodiment, the water passage 21 is fan-shaped; the width of the water passage 21 is greater than the width of the end of the first cleaning flow path 11 away from the first self-cleaning port 15; the width of the water passage 21 is greater than the width of the end of the second cleaning flow path 12 away from the second self-cleaning port 16; the width of the water passage 21 is greater than the width of the first self-cleaning port 15 and the second self-cleaning port 16.

[0060] The above settings ensure sufficient water flow when the control valve is in operation.

[0061] Example 3:

[0062] like Figures 1 to 3As shown, a smart toilet includes a water inlet module 100, a heating module 200, a button panel 300, a central control module 400, a detection module 500, a nozzle assembly 600, a washing rod, and a control valve 700 according to Embodiment 2; the water inlet module 100 is connected to the water inlet 21 through a water inlet pipe; the detection module 500 includes at least a water temperature monitor disposed in the heating module 200; the nozzle assembly 600 is installed in the washing rod, and the nozzle assembly 600 includes a first cleaning nozzle communicating with a first flow path outlet 111, a second cleaning nozzle communicating with a second flow path outlet 121, and a self-cleaning nozzle, the self-cleaning nozzle communicating with a first self-cleaning through hole 151 and a second self-cleaning through hole 161.

[0063] Example 4:

[0064] Since the control methods and steps for the first and second cleaning modes are similar, the explanation will be based on the first and second cleaning modes respectively. Figures 1 to 13 As shown, a control method for a smart toilet includes the following steps:

[0065] Step S1: Before the user operates the button panel, the water inlet (21) is at the reset point between the first drainage path (13) and the second drainage path (14), and the water inlet (21) is connected to both paths at the same time; when the user presses the button for the first cleaning mode, the central control module (400) first sends a water supply command to the water inlet module (100), and then sends a heating command to the heating module (200) to continuously heat the water in the water path. At the same time, the heating module is controlled in a closed loop by the water temperature detector to keep the water temperature stable within the preset temperature range; at this time, a small stream of water flows out from the first cleaning nozzle and the second cleaning nozzle at the same time.

[0066] Step S2: The central control module (400) sends a rotation command to the control valve (700), driving the water passage hole (21) on the moving plate (2) to rotate to the first drainage flow path (13) and stay there, and discharge the cold water downstream of the first cleaning flow path (11) and the first flow path outlet hole (111) to the nozzle through the first connecting flow path (17);

[0067] Step S3: When the preset time for draining cold water is reached, the central control module (400) sends a rotation command to the control valve (700) to drive the water passage (21) to rotate to the first self-cleaning port (15) and stay there to self-clean the cleaning rod. At the same time, the central control module (400) sends a command to the nozzle assembly (600) to let the nozzle slowly extend outside the product.

[0068] Step S4: When the nozzle reaches the target position, the central control module (400) sends a rotation command to the control valve (700), driving the water passage (21) to rotate from the first self-cleaning port (15) to the target position on the first cleaning flow path (11) and stay there. The first cleaning nozzle starts to continuously spray warm water to clean the human body.

[0069] Step S5: When the preset cleaning time is reached, the central control module (400) sends a rotation command to the control valve (700) to drive the water passage (21) to rotate back to the first self-cleaning port (15) and stay there. At the same time, the central control module (400) sends a command to the nozzle assembly (600) to retract the nozzle into the product and keep the self-cleaning nozzle spraying water for a period of time to clean the nozzle.

[0070] Step S6: When the preset self-cleaning time is reached, the central control module (400) sends a rotation command to the control valve (700) to drive the water passage (21) from the first self-cleaning port (15) to the reset point between the first drainage path (13) and the second drainage path (14), and the first cleaning mode ends.

[0071] The number of gears can be set as needed; in this embodiment, there are 5 gears. Figure 4 As shown.

[0072] The control method steps for the second cleaning mode are as follows:

[0073] Step S1: Before the user operates the button panel, the water inlet (21) is at the reset point between the first drainage path (13) and the second drainage path (14), and the water inlet (21) is connected to both paths at the same time; when the user presses the button for the second cleaning mode, the central control module (400) first sends a water supply command to the water inlet module (100), and then sends a heating command to the heating module (200) to continuously heat the water in the water path. At the same time, the heating module is controlled in a closed loop by the water temperature detector to keep the water temperature stable within the preset temperature range; at this time, a small stream of water flows out from the first cleaning nozzle and the second cleaning nozzle at the same time.

[0074] Step S2: The central control module (400) sends a rotation command to the control valve (700), driving the water passage hole (21) on the moving plate (2) to rotate to the second drainage flow path (14) and stay there. The cold water downstream of the second cleaning flow path (12) and the water outlet hole (121) of the second flow path is discharged from the nozzle through the second connecting flow path (18).

[0075] Step S3: When the preset time for draining cold water is reached, the central control module (400) sends a rotation command to the control valve (700), driving the water passage (21) to rotate to the second self-cleaning port (16) and stay there, so as to self-clean the cleaning rod. At the same time, the central control module (400) sends a command to the nozzle assembly (600) to let the nozzle slowly extend outside the product.

[0076] Step S4: When the nozzle reaches the target position, the central control module (400) sends a rotation command to the control valve (700), driving the water passage (21) to rotate from the second self-cleaning port (16) to the target position on the second cleaning flow path (12) and stay there. The first cleaning nozzle starts to continuously spray warm water to clean the human body.

[0077] Step S5: When the preset cleaning time is reached, the central control module (400) sends a rotation command to the control valve (700) to drive the water passage (21) to rotate back to the second self-cleaning port (16) and stay there. At the same time, the central control module (400) sends a command to the nozzle assembly (600) to retract the nozzle into the product and keep the self-cleaning nozzle spraying water for a period of time to clean the nozzle.

[0078] Step S6: When the preset self-cleaning time is reached, the central control module (400) sends a rotation command to the control valve (700) to drive the water passage (21) from the second self-cleaning port (16) to the reset point between the first drainage path (13) and the second drainage path (14), and the second cleaning mode ends.

[0079] By using the above methods, not only can hot water be sprayed directly during cleaning, ensuring a better user experience and avoiding a cold feeling for the user, but the drainage and self-cleaning process can also be controlled within a short time, preventing the user from waiting too long.

[0080] Based on the description and accompanying drawings of this invention, those skilled in the art can readily manufacture or use the fixed plate, control valve, smart toilet, and control method of this invention, and can achieve the positive effects described in this invention.

[0081] Unless otherwise specified, in this invention, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this invention are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the accompanying drawings and according to the specific circumstances.

[0082] Unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" in this invention should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0083] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A control valve, characterized in that: Includes a fixed plate (1) and a moving plate (2); The moving plate (2) is rotatably connected to the fixed plate (1) via a rotating shaft and a positioning hole (19), and the moving plate (2) is driven by a motor; a water passage hole (21) is provided on the moving plate (2) at the position corresponding to the moving plate reset point, and the water passage hole (21) is connected to the water inlet unit; The fixed plate includes a first cleaning flow path (11), a second cleaning flow path (12), a first drainage flow path (13), a second drainage flow path (14), a first self-cleaning port (15), and a second self-cleaning port (16) arranged in a ring on the fixed plate (1); a first connecting flow path (17) and a second connecting flow path (18) are also provided on the inner side of the first cleaning flow path (11) and the second cleaning flow path (12); the first connecting flow path (17) is used to connect the first cleaning flow path (11) and the first drainage flow path (13); the second connecting flow path (18) is used to connect the second cleaning flow path (12) and the second drainage flow path (14); the first drainage flow path (13) and the second drainage flow path (14) are respectively arranged on both sides of the moving plate reset point; the first self-cleaning port (15) is arranged between the first cleaning flow path (11) and the first drainage flow path (13), and the second self-cleaning port (16) is arranged between the second cleaning flow path (12) and the second drainage flow path (14); When the water passage (21) stops at the reset point between the first drainage path (13) and the second drainage path (14), the water passage (21) is simultaneously connected to both paths.

2. The control valve according to claim 1, characterized in that: The first cleaning flow path (11), the first drainage flow path (13), the first self-cleaning port (15) and the first connecting flow path (17) are arranged symmetrically with the second cleaning flow path (12), the second drainage flow path (14), the second self-cleaning port (16) and the second connecting flow path (18).

3. The control valve according to claim 1, characterized in that: The first cleaning flow path (11) and the second cleaning flow path (12) are respectively provided with a first flow path water outlet (111) and a second flow path water outlet (121); the first self-cleaning port (15) and the second self-cleaning port (16) are respectively provided with a first self-cleaning through hole (151) and a second self-cleaning through hole (161); the first flow path water outlet (111) is connected to the first cleaning nozzle; the second flow path water outlet (121) is connected to the second cleaning nozzle; the first self-cleaning through hole (151) and the second self-cleaning through hole (161) are both connected to the self-cleaning nozzle.

4. The control valve according to claim 3, characterized in that: The width of the first cleaning flow path (11) gradually increases from one end of the first cleaning flow path (11) near the first self-cleaning port (15) to the other end, and the water outlet (111) of the first flow path is located at the end of the first cleaning flow path (11) away from the first self-cleaning port (15); the width of the second cleaning flow path (12) gradually increases from one end of the second cleaning flow path (12) near the second self-cleaning port (16) to the other end, and the water outlet (121) of the second flow path is located at the end of the second cleaning flow path (12) away from the second self-cleaning port (16).

5. The control valve according to claim 4, characterized in that: One end of the first connecting flow path (17) is connected to the first drainage flow path (13), and the other end is connected to the end of the first cleaning flow path (11) away from the first self-cleaning port (15), and the width of the first connecting flow path (17) is not less than the width of the end of the first cleaning flow path (11) away from the first self-cleaning port (15); one end of the second connecting flow path (18) is connected to the second drainage flow path (14), and the other end is connected to the end of the second cleaning flow path (12) away from the second self-cleaning port (16), and the width of the second connecting flow path (18) is not less than the width of the end of the second cleaning flow path (12) away from the second self-cleaning port (16).

6. The control valve according to claim 1, characterized in that: The center of the fixed plate (1) is also provided with a positioning hole (19).

7. The control valve according to claim 1, characterized in that: The water passage (21) is fan-shaped; the width of the water passage (21) is greater than the width of the end of the first cleaning flow path (11) away from the first self-cleaning port (15); the width of the water passage (21) is greater than the width of the end of the second cleaning flow path (12) away from the second self-cleaning port (16); the width of the water passage (21) is greater than the width of the first self-cleaning port (15) and the second self-cleaning port (16); the length of the water passage (21) is greater than the interval between the first drainage flow path (13) and the second drainage flow path (14).

8. A smart toilet, characterized in that: The device includes a water inlet module (100), a heating module (200), a button panel (300), a central control module (400), a detection module (500), a nozzle assembly (600), a cleaning rod, and a control valve (700) as described in any one of claims 1-7; the water inlet module (100) is connected to the water inlet hole (21) via a water inlet pipe; the detection module (500) includes at least a water temperature monitor disposed in the heating module (200); the nozzle assembly (600) is installed inside the cleaning rod, and the nozzle assembly (600) includes a first cleaning nozzle communicating with a first flow path outlet hole (111), a second cleaning nozzle communicating with a second flow path outlet hole (121), and a self-cleaning nozzle, wherein the self-cleaning nozzle communicates with a first self-cleaning through hole (151) and a second self-cleaning through hole (161).

9. A control method for a smart toilet, characterized in that, The steps are as follows: Step S1: Before operating the button panel, the water passage (21) stops at the reset point between the first drainage path (13) and the second drainage path (14), and the water passage (21) is simultaneously connected to the first drainage path (13) and the second drainage path (14); when the first cleaning mode is activated, the central control module (400) first sends a water passage command to the water inlet module (100), and then sends a heating command to the heating module (200). The water in the water path is heated, and the heating module is controlled in a closed loop by the water temperature monitor to keep the water temperature stable within the preset temperature range; Step S2: The central control module (400) sends a rotation command to the control valve (700) to drive the water passage (21) on the moving plate (2) to rotate to the first drainage path (13) and stop, and discharges the cold water downstream of the first cleaning path (11) and the first flow path outlet hole (111) to the first cleaning nozzle through the first connecting flow path (17); Step S3: When the preset cold water drainage time is reached, the central control module (400) sends a rotation command to the control valve (700) again, driving the water passage (21) to rotate to the first self-cleaning port (15) and stay there, so as to perform self-cleaning on the cleaning rod. At the same time, the central control module (400) sends a command to the nozzle assembly (600) so that the nozzle extends. Step S4: When the nozzle extends to the target position, the central control module (400) sends a rotation command to the control valve (700) so that the water passage (21) rotates from the first self-cleaning port (15) to the target position on the first cleaning flow path (11) and stays there. The first cleaning nozzle starts to continuously spray warm water. Step S5: When the preset cleaning time is reached, the central control module (400) sends a rotation command to the control valve (700), driving the water passage (21) to rotate back to the first self-cleaning port (15) and stay there. At the same time, the central control module (400) sends a command to the nozzle assembly (600), the nozzle retracts, and the self-cleaning nozzle continues to spray water for a period of time to clean the nozzle. Step S6: When the preset self-cleaning time is reached, the central control module (400) sends a rotation command to the control valve (700), driving the water passage (21) to rotate from the first self-cleaning port (15) to the reset point between the first drainage path (13) and the second drainage path (14), and the first cleaning mode ends.

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