Intelligent toilet and descaling method thereof

Abstract

The application discloses an intelligent closestool and a descaling method thereof, and comprises the following steps: S1, starting descaling; S2, switching a reversing valve downstream of an instant heater to a state of opening a cleaning port communicated with a water spraying body; S3, starting a liquid pump connected with a switching valve upstream of the instant heater, and the liquid pump stays for T1 time in the state of opening the cleaning port of the reversing valve, so as to pump descaling liquid in a liquid storage tank communicated with the liquid pump to the water spraying body and discharge the descaling liquid from a water outlet of the water spraying body; S4, switching the reversing valve to a state of opening a descaling port communicated with the liquid storage tank, and the liquid pump is in an open state for T2 time, so that the descaling liquid circulates in a loop formed by the liquid storage tank, the liquid pump, the switching valve, the instant heater and the reversing valve for T2 time. By arranging steps S2 and S3, the descaling liquid in the liquid storage tank can be used to replace residual cleaning water in a passage between the switching valve and the water spraying body, so that dilution of the descaling liquid by the residual cleaning water in the water passage is avoided, and the descaling effect is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of toilet technology, and in particular to an intelligent toilet and its descaling method. Background Technology

[0002] Most smart toilets on the market today have a body washing function and are equipped with an electric heater to heat the washing water to a suitable temperature. In areas with hard water, some minerals in the tap water will precipitate out and form limescale after being heated by the smart toilet's electric heater. This limescale can detach and clog the water pipes, causing the washing function to malfunction. Furthermore, limescale easily breeds bacteria, which can be harmful to the user's health. Therefore, some smart toilets have a descaling function. This function involves adding descaling solution to the water pipes and using a water pump to circulate the solution and remove limescale. After descaling is complete, the water pump stops circulating the descaling solution, and the water flow is switched so that the descaling solution is discharged from the spray nozzle.

[0003] Existing smart toilets, when the descaling mode is activated, switch the water circuit to a circulation loop, turning on the water pump to circulate the descaling solution within this loop. However, because residual water remains within the water system, this dilutes the descaling solution, affecting its effectiveness. Therefore, it is necessary to provide a smart toilet and its descaling method to solve these problems. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an intelligent toilet and its descaling method, which can effectively improve the descaling effect.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] A method for descaling a smart toilet includes the following steps:

[0007] S1: Start descaling;

[0008] S2: Switch the reversing valve downstream of the instant heater to the state where the cleaning port connected to the water spray body is open;

[0009] S3: Start the liquid pump connected to the switching valve upstream of the instantaneous heater. The liquid pump stays in the cleaning port of the reversing valve open for a time T1 to pump the descaling liquid in the storage tank connected to the liquid pump to the water spray body and discharge it from the outlet of the water spray body.

[0010] S4: Switch the reversing valve to the open state of the descaling port connected to the liquid storage tank, and the liquid pump is in the open state for time T2, so that the descaling liquid circulates in the loop formed by the liquid storage tank, liquid pump, switching valve, instant heater and reversing valve for time T2.

[0011] Preferred: Repeat steps S2 to S4 multiple times.

[0012] Preferably, in step S1, descaling is initiated by pressing a control button, rotating a control knob, or triggering an induction switch.

[0013] Preferably, after step S4, step S5 is performed: the reversing valve is switched to the state where the cleaning port connected to the water spray body is open, and the liquid in the storage tank is discharged from the outlet of the water spray body by the liquid pump until all the liquid in the storage tank 5 is drained.

[0014] Preferably, after step S5, step S6 is performed at least once: the liquid pump is turned off, the connection between the switching valve and the liquid pump is cut off, the switching valve is switched to be connected to the water supply source, the reversing valve is switched to the state where the descaling port connected to the storage tank is open, and the water supply source supplies water to the storage tank for time T3; then the reversing valve is switched to the state where the cleaning port connected to the water spray body is open, the switching valve is connected to the liquid pump, and the liquid pump discharges the liquid in the storage tank from the outlet of the water spray body until all the liquid in the storage tank 5 is drained.

[0015] Preferably: after step S5 or S6, step S7 is executed: the liquid pump is turned off, the connection between the switching valve and the liquid pump is cut off, the switching valve is switched to be connected to the water supply source, the reversing valve is switched to the state where the cleaning port connected to the water spray body is open, and the water supply source supplies water for time T4.

[0016] Preferably: after step S4, step S8 is executed: the liquid pump is turned off, the connection between the switching valve and the liquid pump is cut off, the switching valve is switched to be connected to the water supply source, the reversing valve is switched to the state where the cleaning port connected to the water spray body is open, and the water supply source supplies water for time T5.

[0017] Preferably, the cleaning port of the reversing valve includes a self-cleaning port and several functional ports. The self-cleaning port is connected to the self-cleaning outlet on the water spray body for self-cleaning of the water spray body. The functional ports are connected to the functional outlet on the water spray body. In step S3, S5, S6, S7, or S8, when the cleaning port of the reversing valve is open, the self-cleaning port and several functional ports are opened sequentially in a predetermined order.

[0018] Preferably, after the liquid pump is started, if the flow meter located between the switching valve and the instantaneous heater detects no flow, it will issue a prompt sound to indicate that descaling solution should be added to the storage tank.

[0019] Preferred method: During the descaling process, when the liquid pump is forcibly stopped, the connection between the switching valve and the liquid pump is cut off, so that the switching valve is switched to be connected to the water supply source, and the reversing valve is switched to the state where the cleaning port connected to the water spray body is open, so that the water supply source supplies water for time T6.

[0020] Preferred configuration: During the descaling process, if a power outage and / or water outage occurs, after the power outage and / or water outage is restored, disconnect the switching valve from the liquid pump, switch the switching valve to connect with the water supply source, and switch the reversing valve to open the cleaning port connected to the water spray body, so that the water supply source supplies water for time T7.

[0021] The present invention also provides a smart toilet, including a descaling system, which is used to implement the descaling method described in any of the above claims.

[0022] The present invention has the following advantages:

[0023] 1. This invention adds steps S2 and S3 before the descaling liquid circulation step S4. The reversing valve is switched to the open state where the cleaning port connected to the water spray body is open, and the switching valve is switched to the state where it is connected to the liquid pump. The liquid pump is started for time T1. The liquid pump sequentially draws the descaling liquid from the storage tank to the switching valve, the instantaneous heater, the reversing valve, and the water spray body, and discharges it from the outlet of the final water spray body. In this way, before circulating the descaling liquid, the residual cleaning water in the passage between the switching valve and the water spray body is replaced by the descaling liquid in the storage tank. This avoids the dilution of the descaling liquid by the residual cleaning water in the water path, thereby ensuring the concentration of the descaling liquid, effectively improving the descaling effect, and ensuring that the descaling effect meets the predetermined requirements.

[0024] 2. In step S3 of this invention, the descaling solution is discharged from the outlet of the water spray body (i.e., the end of the water path). This ensures that the outlet of the water spray body is contacted by the descaling solution before the descaling solution circulation step S4. Although the circulating descaling solution cannot directly contact the outlet of the water spray body in step S4, the descaling solution remaining on the outlet in step S3 can still wet it for a certain period, effectively descaling the outlet and compensating for the deficiency of the descaling solution not contacting the outlet during the descaling process. In contrast, in existing technologies, the outlet of the water spray body only briefly contacts the descaling solution during the final discharge. This brief contact results in a weak descaling effect, thus preventing effective descaling of the outlet (i.e., the end of the water path). In summary, compared with the prior art, the present invention can utilize the descaling liquid discharged in the early stage to contact the water outlet of the spray body in advance, and the descaling liquid remaining in the water outlet of the spray body can soak the water outlet of the spray body for a certain period of time. Therefore, the descaling of the water outlet of the spray body is more thorough and sufficient, and the descaling effect is better.

[0025] 3. By repeating steps S2 to S4 multiple times, the present invention allows the descaling liquid to be discharged from the outlet of the water spray body multiple times, thereby enabling the descaling liquid to more fully and effectively wet the outlet of the water spray body, and further improving the descaling effect on the outlet of the water spray body.

[0026] 4. By setting steps S5 and S6, the present invention can automatically clean the storage tank with cleaning water after descaling is completed.

[0027] 5. By setting steps S7 or S8, the present invention can automatically clean the residual descaling solution in the water circuit with water from the water supply source (such as tap water) after descaling, so as to avoid the residual descaling solution in the water circuit from affecting the human body during subsequent human body cleaning.

[0028] 6. The cleaning port of the reversing valve of the present invention includes a self-cleaning port and several functional ports. In step S3, S5, S6, S7 or S8, when the cleaning port of the reversing valve is open, the self-cleaning port and several functional ports are opened in a predetermined order, thereby enabling the self-cleaning outlet and functional outlet on the water spray body to be opened in a predetermined order, so as to achieve thorough cleaning and descaling of each outlet of the water spray body.

[0029] 7. This invention uses a flow meter to detect whether there is descaling liquid in the pipeline. If no flow is detected, an audible prompt will be issued to remind the user to add descaling liquid to the storage tank, thus avoiding the pump running dry and making the use more intelligent and convenient.

[0030] 8. During the descaling process of this invention, when the liquid pump is forcibly stopped, or after a power outage and / or water outage is restored, the connection between the switching valve and the liquid pump is cut off, so that the switching valve is switched to be connected to the water supply source, and the reversing valve is switched to the state where the cleaning port connected to the water spray body is open, so that the water supply source supplies water for a predetermined time. This ensures that if an abnormal situation occurs in the descaling process, the water circuit will automatically return to a state that can be used for normal human body cleaning. That is, it ensures that no descaling liquid remains in the water circuit, thereby effectively avoiding the problem of descaling liquid coming into contact with the human body when cleaning after an abnormal situation occurs in the descaling process, making it safer to use. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0032] Figure 2 This is a schematic diagram of the overall process of the present invention.

[0033] Figure 3 This is a schematic diagram of the flow direction of the descaling solution in step S3 of the present invention.

[0034] Figure 4 This is a schematic diagram of the flow direction of the descaling solution in step S4 of the present invention.

[0035] Figure 5 This is a schematic diagram of the direction of clean water flow in steps S7 and S8 of the present invention.

[0036] Figure 6This is a schematic diagram showing the direction of water flow from the water source to the storage tank in step S6 of the present invention.

[0037] In the diagram, 1 is a liquid pump; 2 is a switching valve; 3 is a pressure regulating valve; 4 is a flow meter; 5 is a liquid storage tank; 6 is a reversing valve; 7 is a water spray body; and 8 is an instant heater. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0040] like Figures 1-2 As shown, an intelligent toilet descaling system includes components such as a liquid pump 1, a switching valve 2, a pressure regulating valve 3, a flow meter 4, a liquid storage tank 5, a reversing valve 6, a water spray body 7, and an instant heater 8.

[0041] A method for descaling a smart toilet, utilizing the aforementioned smart toilet descaling system, includes the following steps:

[0042] S1: Start descaling;

[0043] S2: Switch the reversing valve 6 downstream of the instant heater 8 to the state where the cleaning port connected to the water spray body 7 is open;

[0044] S3: Start the liquid pump 1 connected to the switching valve 2 upstream of the instant heater 8. The liquid pump 1 stays in the cleaning port of the reversing valve 6 for a time T1 to pump the descaling liquid in the storage tank 5 connected to the liquid pump 1 to the water spray body 7 and discharge it from the outlet of the water spray body 7. At this time, the flow route of the descaling liquid is: storage tank 5 → liquid pump 1 → switching valve 2 → instant heater 8 → reversing valve 6 → water spray body 7.

[0045] S4: Switch the reversing valve 6 to the state where the descaling port connected to the storage tank 5 is open, and the liquid pump 1 is in the open state for time T2, so that the descaling liquid circulates in the loop formed by the storage tank 5, the liquid pump 1, the switching valve 2, the instantaneous heater 8 and the reversing valve 6 for time T2; at this time, the circulation flow route of the descaling liquid is: storage tank 5 → liquid pump 1 → switching valve 2 → instantaneous heater 8 → reversing valve 6 → storage tank 5.

[0046] By adding steps S2 and S3 before the descaling solution circulation step S4, the reversing valve 6 is switched to the state where the cleaning port connected to the water spray body 7 is open, and the switching valve 2 is switched to the state where it is connected to the liquid pump 1. The liquid pump is started for time T1. The liquid pump 1 pumps the descaling solution in the storage tank 5 sequentially to the switching valve 2, the instantaneous heater 8, the reversing valve 6, the water spray body 7, and discharged from the outlet of the final water spray body 7. In this way, the descaling solution in the storage tank 5 replaces the residual cleaning water in the passage between the switching valve 2 and the water spray body 7 before circulating descaling, avoiding the dilution of the descaling solution by the cleaning water remaining in the water path, thereby effectively improving the descaling effect and making the descaling effect meet the predetermined requirements.

[0047] In step S3, the descaling solution is discharged from the outlet of the water spray body 7 (i.e., the end of the water path). This ensures that the outlet of the water spray body 7 is contacted by the descaling solution before the descaling solution circulation step S4. While the circulating descaling solution in step S4 does not directly contact the outlet of the water spray body 7, the residual descaling solution on the outlet in step S3 still provides a certain period of wetting, effectively descaling the outlet. This compensates for the inability of the descaling solution to contact the outlet during the circulation process. In contrast, in existing technologies, the outlet of the water spray body 7 only briefly contacts the descaling solution during the final discharge. This brief contact results in a weak descaling effect, thus the existing technology cannot effectively descal the outlet of the water spray body 7 (i.e., the end of the water path). In summary, compared with the prior art, the present invention can utilize the descaling liquid discharged in the early stage to contact the water outlet of the water spray body 7 in advance, and the descaling liquid remaining in the water outlet of the water spray body 7 can soak the water outlet of the water spray body 7 for a certain period of time. Therefore, the descaling of the water outlet of the water spray body 7 is more thorough and sufficient, and the descaling effect is better.

[0048] The switching valve 2, liquid pump 1, instant heater 8, and reversing valve 6 mentioned above can all be controlled by the main control board (not shown in the figure) installed on the smart toilet.

[0049] In step S1, descaling can be initiated by pressing a control button, rotating a control knob, or triggering a sensor switch. In addition to the contact or sensor-based descaling initiation methods described above, voice control can also be used to initiate descaling. The descaling initiation methods of this invention include, but are not limited to, the aforementioned methods.

[0050] In some optional or preferred embodiments, steps S2 to S4 can be repeated multiple times, so that the descaling liquid can be discharged from the outlet of the water spray body 7 multiple times, thereby enabling the descaling liquid to more fully and effectively wet the outlet of the water spray body 7, and further improving the descaling effect on the outlet of the water spray body 7.

[0051] In some optional or preferred embodiments, after step S4, step S5 is performed: the reversing valve 6 is switched to the open state of the cleaning port connected to the water spray body 7, and the liquid in the storage tank is discharged from the outlet of the water spray body 7 by the liquid pump 1 until all the liquid in the storage tank 5 is drained. At this time, the flow path of the descaling liquid is: storage tank 5 → liquid pump 1 → switching valve 2 → instant heater 8 → reversing valve 6 → water spray body 7.

[0052] By draining the liquid from the storage tank 5, this method is particularly suitable for users with long descaling cycles, thus avoiding the long-term storage of used descaling solution in the storage tank 5. Of course, for users who descale frequently, it is not necessary to drain the descaling solution from the storage tank 5 after each descaling. The descaling solution can be used for multiple descaling cycles before being drained, saving descaling costs.

[0053] In some optional or preferred embodiments, after step S5, step S6 is performed at least once: the liquid pump 1 is turned off, the connection between the switching valve 2 and the liquid pump 1 is cut off, the switching valve 2 is switched to be connected to the water supply source, the reversing valve 6 is switched to the state where the descaling port connected to the liquid storage tank 5 is open, and the water supply source supplies water to the liquid storage tank 5 for time T3; then the reversing valve 6 is switched to the state where the cleaning port connected to the water spray body 7 is open, the switching valve 2 is connected to the liquid pump 1, and the liquid in the liquid storage tank is discharged from the outlet of the water spray body 7 through the liquid pump 1 until all the liquid in the liquid storage tank 5 is drained.

[0054] In step S6 above, by shutting off the liquid pump 1 and disconnecting the switching valve 2 from the liquid pump 1, the switching valve 2 is switched to be connected to the water supply source. The reversing valve 6 is then switched to the open state, connecting to the descaling port of the storage tank 5. This allows the water supply source to supply water to the storage tank 5 for a time T3, filling the storage tank 5 with water from the supply source (such as tap water), thereby cleaning the storage tank 5. At this time, the water flow direction is: water supply source → switching valve 2 → flow meter 4 → instant heater 8 → reversing valve 6 → storage tank 5.

[0055] In step S6 above, by switching the reversing valve 6 to the open state where it connects to the water spray body 7, the switching valve 2 is connected to the liquid pump 1. The liquid pump 1 discharges the liquid in the storage tank from the outlet of the water spray body 7 until all the liquid in the storage tank 5 is drained. This step utilizes the liquid pump 1 to discharge the cleaning water containing descaling solution from the storage tank 5 through the outlet of the water spray body 7. At this time, the flow direction of the cleaning water containing descaling solution is: storage tank 5 → liquid pump 1 → switching valve 2 → flow meter 4 → instant heater 8 → reversing valve 6 → water spray body 7. Thus, if descaling is not performed, there will be no descaling solution in the storage tank 5.

[0056] Preferably, step S6 can be repeated multiple times to clean the descaling solution in the storage tank 5 and the water circuit more thoroughly and effectively.

[0057] In some optional or preferred embodiments, after step S5 or S6, step S7 is performed: the liquid pump 1 is turned off, the connection between the switching valve 2 and the liquid pump 1 is cut off, the switching valve 2 is switched to be connected to the water supply source, and the reversing valve is switched to the state where the cleaning port connected to the water spray body 7 is open, so that the water supply source supplies water for time T4. At this time, the flow direction of the clean water from the water supply source is: water supply source → switching valve 2 → flow meter 4 → instant heater 8 → reversing valve 6 → water spray body 7.

[0058] By executing step S7, the residual descaling solution in the water circuit can be automatically rinsed with water from the water supply source (such as tap water) after the descaling is completed, so as to avoid the residual descaling solution in the water circuit from affecting the human body during subsequent human body cleaning.

[0059] In some alternative embodiments, steps S5 and S6 can be omitted (that is, the step of cleaning the storage tank 5 is omitted, and the descaling solution is retained in the storage tank 5). Instead, after step S4, step S8 is executed directly: the liquid pump 1 is turned off, the connection between the switching valve 2 and the liquid pump 1 is cut off, the switching valve 2 is switched to be connected to the water supply source, and the reversing valve is switched to the state where the cleaning port connected to the water spray body 7 is open, so that the water supply source supplies water for time T5. At this time, the flow direction of the clean water from the water supply source is: water supply source → switching valve 2 → flow meter 4 → instant heater 8 → reversing valve 6 → water spray body 7.

[0060] By executing step S8, the residual descaling solution in the water circuit can be automatically rinsed with water from the water supply source (such as tap water) after the descaling is completed, so as to avoid the residual descaling solution in the water circuit from affecting the human body during subsequent human body cleaning.

[0061] In some optional or preferred embodiments, the cleaning port of the reversing valve 6 includes a self-cleaning port and several functional ports. The self-cleaning port is connected to the self-cleaning outlet on the water spray body 7 for self-cleaning of the water spray body 7. The functional ports are connected to the functional outlet on the water spray body 7. In step S3, S5, S6, S7 or S8, when the cleaning port of the reversing valve 6 is open, the self-cleaning port and several functional ports are opened sequentially in a predetermined order.

[0062] Specifically, the reversing valve 6 may have several functional ports, including a bidet port and a feminine wash port. Correspondingly, the spray body 7 may have several functional outlets, including a bidet outlet and a feminine wash outlet. Of course, the functional ports of the reversing valve 6 and the functional outlets of the spray body 7 can also be other ports that can perform the corresponding functions, which will not be listed here.

[0063] In step S3, S5, S6, S7, or S8, during the cleaning process of the passage formed by the switching valve 2 and the water spray body 7, the self-cleaning port and several functional ports of the reversing valve 6 are opened in a predetermined order, so that the corresponding self-cleaning water outlet and each functional water outlet on the water spray body 7 are opened in sequence, which can achieve thorough cleaning and descaling of each water outlet of the water spray body 7, and achieve the purpose of comprehensive descaling and cleaning of the water spray body.

[0064] In some optional or preferred embodiments, after the liquid pump 1 is started, if the flow meter located between the switching valve 2 and the instantaneous heater 8 detects no flow, it will issue a prompt sound to indicate that descaling solution should be added to the storage tank.

[0065] The flow meter detects whether there is descaling liquid in the pipeline. If no flow is detected, an audible prompt will remind the user to add descaling liquid to the storage tank to avoid the pump running empty, making it more intelligent and convenient to use.

[0066] In some optional or preferred embodiments, during the descaling process, when the liquid pump 1 is forcibly stopped, the connection between the switching valve 2 and the liquid pump 1 is cut off, causing the switching valve 2 to switch to the water supply source. The reversing valve is then switched to the state where the cleaning port connected to the water spray body 7 is open, allowing the water supply source to supply water for time T6. This configuration ensures that when the liquid pump 1 is forcibly shut down during the descaling process, the water circuit automatically returns to a state suitable for normal human washing. That is, it ensures that no descaling liquid remains in the water circuit, effectively preventing the problem of descaling liquid contacting the human body when washing after an abnormal stop during descaling, making it safer to use.

[0067] In some optional or preferred embodiments, if a power outage and / or water outage occurs during the descaling process, upon restoration of power and / or water supply, the connection between the switching valve 2 and the liquid pump 1 is severed, causing the switching valve 2 to switch to the water supply source. The reversing valve is then switched to the open state of the cleaning port connected to the water spray body 7, allowing the water supply source to supply water for time T7. This configuration ensures that the water circuit automatically returns to a state suitable for normal human washing after a power outage or water outage during the descaling process. In other words, it ensures that no descaling solution remains in the water circuit, effectively preventing the descaling solution from contacting the human body during washing after an abnormal situation occurs during descaling, making it safer to use.

[0068] The present invention also discloses an intelligent toilet, including a descaling system, which is used to implement any of the descaling methods described above.

[0069] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for descaling an intelligent toilet, characterized in that: Includes the following steps: S1: Start descaling; S2: Switch the reversing valve (6) downstream of the instant heater (8) to the state where the cleaning port connected to the water spray body (7) is open; S3: Start the liquid pump (1) connected to the switching valve (2) upstream of the instant heater (8). The liquid pump (1) stays in the cleaning port of the reversing valve (6) for a time T1 to pump the descaling liquid in the storage tank (5) connected to the liquid pump (1) to the water spray body (7) and discharge it from the outlet of the water spray body (7). S4: Switch the reversing valve (6) to the state where the descaling port connected to the storage tank (5) is open, and the liquid pump (1) is in the open state for time T2, so that the descaling liquid circulates in the loop formed by the storage tank (5), the liquid pump (1), the switching valve (2), the instantaneous heater (8) and the reversing valve (6) for time T2. After step S4, step S5 is performed: the reversing valve (6) is switched to the state where the cleaning port connected to the water spray body (7) is open, and the liquid in the storage tank (5) is discharged from the outlet of the water spray body (7) by the liquid pump (1) until all the liquid in the storage tank (5) is drained. After step S5, step S6 is performed at least once: turn off the liquid pump (1), disconnect the switching valve (2) from the liquid pump (1), switch the switching valve (2) to connect with the water supply source, switch the reversing valve (6) to open the descaling port connected to the storage tank (5), and supply water to the storage tank (5) for T3 time; then switch the reversing valve (6) to open the cleaning port connected to the spray body (7), connect the switching valve (2) to the liquid pump (1), and discharge the liquid in the storage tank (5) from the outlet of the spray body (7) through the liquid pump (1) until all the liquid in the storage tank (5) is drained.

2. The method for descaling a smart toilet according to claim 1, characterized in that: Repeat steps S2 to S4 multiple times.

3. The method for descaling a smart toilet according to claim 1, characterized in that: In step S1, descaling is initiated by pressing a control button, rotating a control knob, or triggering an induction switch.

4. The method for descaling a smart toilet according to claim 1, characterized in that: After step S5 or S6, step S7 is executed: shut off the liquid pump (1), disconnect the switching valve (2) from the liquid pump (1), switch the switching valve (2) to be connected to the water supply source, switch the reversing valve (6) to the state where the cleaning port connected to the water spray body (7) is open, and supply water from the water supply source for time T4.

5. The method for descaling a smart toilet according to claim 1, characterized in that: After step S4, step S8 is executed: shut off the liquid pump (1), disconnect the switching valve (2) from the liquid pump (1), switch the switching valve (2) to connect with the water supply source, switch the reversing valve (6) to open the cleaning port connected to the water spray body (7), and supply water from the water supply source for time T5.

6. A method for descaling an intelligent toilet according to claim 1 or 5, characterized in that: The cleaning port of the reversing valve (6) includes a self-cleaning port and several functional ports. The self-cleaning port is connected to the self-cleaning outlet on the water spray body (7) for self-cleaning of the water spray body (7). The functional ports are connected to the functional outlet on the water spray body (7). In step S3, S5, S6 or S8, when the cleaning port of the reversing valve (6) is open, the self-cleaning port and several functional ports are opened in a predetermined order.

7. The method for descaling a smart toilet according to claim 1, characterized in that: After the liquid pump (1) is started, if the flow meter (4) located between the switching valve (2) and the instant heater (8) detects no flow, it will issue a prompt sound to add descaling liquid to the storage tank (5).

8. The method for descaling a smart toilet according to claim 1, characterized in that: During the descaling process, when the liquid pump (1) is forced to stop working, the connection between the switching valve (2) and the liquid pump (1) is cut off, so that the switching valve (2) is switched to be connected to the water supply source, and the reversing valve (6) is switched to the state where the cleaning port connected to the water spray body (7) is open, so that the water supply source supplies water for T6 time.

9. The method for descaling a smart toilet according to claim 1, characterized in that: During the descaling process, if a power outage and / or water outage occurs, after the power outage and / or water outage is restored, disconnect the connection between the switching valve (2) and the liquid pump (1), switch the switching valve (2) to be connected to the water supply source, switch the reversing valve (6) to the state where the cleaning port connected to the water spray body (7) is open, and supply water to the water supply source for time T7.

10. A smart toilet, comprising a descaling system, characterized in that: The descaling system is used to implement the descaling method according to any one of claims 1 to 9.

Images