Toilet water circuit and descaling control method for toilet water circuit

Abstract

The present invention discloses a toilet water circuit and a descaling control method for the toilet water circuit, wherein the toilet water circuit includes a first switching valve, a cleaning water circuit, a scale inhibition component, a steam water circuit and a spray gun, the first switching valve is provided with a first switching port and a second switching port; the cleaning water circuit is connected to one end of the first switching valve and communicated with the first switching port; the scale inhibition component is connected to one end of the first switching valve and communicated with the second switching port; the steam water circuit is connected to one end of the scale inhibition component away from the first switching valve and communicated with the scale inhibition component; the spray gun is respectively connected to the steam water circuit and the cleaning water circuit, and is respectively communicated with the steam water circuit and the cleaning water circuit. The technical solution of the present invention prevents scale from condensing on the inner wall of the steam water circuit, and washes away the powdery thin layer of scale just formed on the inner wall of the steam water flow, thereby reducing the scale generated on the inner wall of the steam water circuit and extending the service life of the steam water circuit.

Description

Technical Field

[0001] The invention relates to the technical field of toilets, and in particular to a water channel of a toilet and a descaling control method for the water channel of the toilet. Background Art

[0002] Existing smart toilets generally generate steam by setting up a steam generator, and use steam to sterilize the spray gun at high temperature; however, during long-term use of the steam generator, scale will be generated on the inner wall of the steam generator due to Ca2+, Mg2+ ions in the water and impurities such as silt, organic matter, etc. When the scale accumulates to a certain extent, it will seriously affect the heat transfer efficiency of the steam generator, thereby reducing the quality of steam and the service life of the steam generator, and will also bring certain safety hazards. Therefore, the scale inside the steam generator must be cleaned after a period of use. Summary of the invention

[0003] The main purpose of the present invention is to provide a toilet water channel and a descaling control method for the toilet water channel, aiming to remove scale on the inner wall of the steam water channel and extend the service life of the steam water channel.

[0004] In order to achieve the above-mentioned object, the present invention provides a toilet water circuit, wherein the toilet water circuit comprises:

[0005] a first switching valve, wherein the first switching valve is provided with a first switching port and a second switching port;

[0006] a cleaning water channel, the cleaning water channel being connected to one end of the first switching valve and communicating with the first switching port;

[0007] A scale inhibition component, the scale inhibition component is connected to one end of the first switching valve and communicated with the second switching port;

[0008] a steam waterway, the steam waterway being connected to an end of the anti-scaling component away from the first switching valve and being in communication with the anti-scaling component; and

[0009] A spray gun is connected to the steam water channel and the cleaning water channel respectively, and is communicated with the steam water channel and the cleaning water channel respectively.

[0010] In one embodiment, the antiscaling assembly comprises:

[0011] an anti-scaling filter element, the anti-scaling filter element being connected to one end of the first switching valve and being in communication with the second switching port; and

[0012] The second switching valve is arranged between the anti-scaling filter element and the steam water channel and is connected to the anti-scaling filter element. The second switching valve is provided with a first port and a second port. The steam water channel is connected to the first port, and the cleaning water channel is connected to the second port.

[0013] In one embodiment, the spray gun has a functional water outlet channel and a self-cleaning water outlet channel, and the functional water outlet channel and the self-cleaning water outlet channel are arranged at intervals;

[0014] The cleaning waterway comprises:

[0015] an instant heating component connected to one end of the first switching valve and communicated with the first switching port; and

[0016] A water diverter valve is provided between the instant heating component and the spray gun, and the water diverter valve is respectively connected to the instant heating component, the functional water outlet channel and the self-cleaning water outlet channel.

[0017] In one embodiment, the steam water circuit comprises:

[0018] a steam generator connected to the second switching valve and communicating with the first port; and

[0019] A water vapor separator is arranged between the steam generator and the spray gun and is communicated with the steam generator.

[0020] In one embodiment, the toilet water circuit further includes a pressure-reducing water inlet solenoid valve connected to an end of the first switching valve away from the cleaning water circuit, and the pressure-reducing water inlet solenoid valve is in communication with the first switching valve.

[0021] In one embodiment, the toilet water circuit further includes a vacuum breaker, which is disposed between the pressure-reducing water inlet solenoid valve and the first switching valve, and the vacuum breaker is communicated with the first switching valve and the pressure-reducing water inlet solenoid valve.

[0022] The present invention also provides a descaling control method for a toilet water channel, the descaling control method for a toilet water channel comprising:

[0023] Controlling the first switching valve to be energized, so that the second switching port of the first switching valve is connected to the anti-scaling component, so that water flows into the anti-scaling component to form anti-scaling liquid;

[0024] Control steam water circuit heating;

[0025] The anti-scaling component, the steam waterway and the spray gun are controlled to be connected in sequence, so that the anti-scaling liquid enters the steam waterway to form steam, and the steam is passed into the spray gun.

[0026] In one embodiment, the step of controlling the anti-scaling component, the steam waterway and the spray gun to be connected in sequence so that the anti-scaling liquid enters the steam waterway to form steam, and after the step of passing the steam into the spray gun, further comprises:

[0027] When the second switching valve is powered on for a first preset time, the pressure reducing water inlet solenoid valve, the first switching valve and the second switching valve are closed to allow the antiscaling liquid to remain in the steam water path.

[0028] In one embodiment, the step of controlling the first switching valve to be energized, the second switching port of the first switching valve being connected to the anti-scaling component, and allowing water to flow into the anti-scaling component to form the anti-scaling liquid further includes:

[0029] When the first switching valve is powered on for a second preset time, the water diversion valve is controlled to switch to communicate with the functional water outlet channel of the spray gun;

[0030] The second switching valve is controlled to be powered off, so that the second port of the second switching valve is connected to the cleaning water path, so that the antiscaling liquid enters the cleaning water path, and the antiscaling liquid prevents scale from being applied to the functional water outlet channel of the spray gun.

[0031] The toilet water circuit of the technical solution of the present invention is provided with a scale-inhibiting component between the first switching valve and the steam water circuit. In this way, when water flows through the scale-inhibiting component to form scale-inhibiting liquid, the scale-inhibiting liquid then enters the heated steam water circuit, so that the scale-inhibiting liquid exchanges heat with the inner wall of the steam water circuit to form steam. The steam can sterilize the spray gun. At the same time, the scale-inhibiting liquid can prevent scale from condensing on the inner wall of the steam water circuit, and wash away the powdery thin layer of scale just formed on the inner wall of the steam water flow, thereby reducing the scale generated on the inner wall of the steam water circuit and extending the service life of the steam water circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0033] Figure 1 It is a schematic diagram of the structure of the water circuit of the toilet of the present invention;

[0034] Figure 2 The figure is a schematic flow chart of the steps of the descaling control method for the water circuit of a toilet bowl according to the present invention.

[0035] Description of Figure Numbers:

[0036]

[0037]

[0038] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0041] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0042] The invention provides a water channel of a toilet.

[0043] In the embodiment of the present invention, refer to Figure 1 The toilet water circuit includes a first switching valve 10, a cleaning water circuit 20, a scale inhibition component 30, a steam water circuit 40 and a spray gun 50; the first switching valve 10 is provided with a first switching port and a second switching port; the cleaning water circuit 20 is connected to one end of the first switching valve 10 and communicated with the first switching port; the scale inhibition component 30 is connected to one end of the first switching valve 10 and communicated with the second switching port; the steam water circuit 40 is connected to an end of the scale inhibition component 30 away from the first switching valve 10 and communicated with the scale inhibition component 30; the spray gun 50 is respectively connected to the steam water circuit 40 and the cleaning water circuit 20, and is respectively communicated with the steam water circuit 40 and the cleaning water circuit 20.

[0044] In this embodiment, after the buttock washing or feminine washing is completed, the first switching valve 10 controlling the toilet waterway is energized, and the first switching port of the first switching valve 10 will be communicated with the scale inhibitor assembly 30. In this way, water will sequentially pass through the first switching valve 10 and the scale inhibitor assembly 30, so that the pipeline between the first switching valve 10 and the scale inhibitor assembly 30 can form scale inhibitor liquid, and the scale inhibitor liquid is temporarily stored in the scale inhibitor assembly 30. At the same time, the steam waterway 40 starts to be heated. After the steam waterway 40 is heated, powdery thin-layer scale will be generated. When the steam waterway 40 is heated to a preset time, the scale inhibitor assembly 30 is controlled to be communicated with the steam waterway 40, and the scale inhibitor liquid then enters the heated steam waterway 40, so that the scale inhibitor liquid exchanges heat with the inner wall of the steam waterway 40 to form steam, and the steam is introduced into the spray gun 50 to disinfect the spray gun 50; at the same time, the scale inhibitor liquid can prevent the inner wall of the steam waterway 40 from condensing scale, and wash away the powdery thin-layer scale just formed on the inner wall of the steam flowing waterway 40, thereby reducing the scale generated on the inner wall of the steam waterway 40 and prolonging the service life of the steam waterway 40.

[0045] In the toilet waterway of the technical solution of the present invention, a scale inhibitor assembly 30 is arranged between the first switching valve 10 and the steam waterway 40. In this way, when water flows through the scale inhibitor assembly 30 to form scale inhibitor liquid, the scale inhibitor liquid then enters the heated steam waterway 40, so that the scale inhibitor liquid exchanges heat with the inner wall of the steam waterway 40 to form steam, and the steam can disinfect the spray gun 50. At the same time, the scale inhibitor liquid can prevent the inner wall of the steam waterway 40 from condensing scale, and wash away the powdery thin-layer scale just formed on the inner wall of the steam flowing waterway 40, thereby reducing the scale generated on the inner wall of the steam waterway 40 and prolonging the service life of the steam waterway 40.

[0046] In one embodiment, referring to Figure 1 , the scale inhibitor assembly 30 includes a scale inhibitor filter element 31 and a second switching valve 32. The scale inhibitor filter element 31 is connected to one end of the first switching valve 10 and communicated with the second switching port; the second switching valve 32 is arranged between the scale inhibitor filter element 31 and the steam waterway 40 and communicated with the scale inhibitor filter element 31. The second switching valve 32 is provided with a first through port and a second through port. The steam waterway 40 is communicated with the first through port, and the cleaning waterway 20 is communicated with the second through port.

[0047] In this embodiment, by arranging the second switching valve 32 between the scale inhibitor filter element 31 and the steam waterway 40, with such an arrangement, after water flows into the scale inhibitor filter element 31 to form scale inhibitor liquid, by controlling the second switching valve 32 to close, the scale inhibitor filter element 31 can have enough time to form a large amount of scale inhibitor liquid, and the steam waterway 40 can have enough time for preheating, so as to facilitate a large amount of scale inhibitor liquid to exchange heat with the high-temperature steam waterway 40 to form a large amount of steam.

[0048] By connecting the second switching valve 32 to the cleaning water circuit 20, when the steam water circuit 40 is preheated, the second switching valve 32 can be connected to the cleaning water circuit 20 first, and the second switching valve 32 and the steam water circuit 40 can be disconnected, so that the anti-scaling liquid coming out of the anti-scaling filter element 31 can first enter the cleaning water circuit 20 through the second switching valve 32 for descaling and cleaning, thereby further improving the cleanliness of the cleaning water circuit 20 and making the entire descaling control process more reasonable.

[0049] In one embodiment, referring to Figure 1 The spray gun 50 has a functional water outlet channel 50a and a self-cleaning water outlet channel 50b, and the functional water outlet channel 50a and the self-cleaning water outlet channel 50b are arranged at intervals; the cleaning water circuit 20 includes an instant heating component 21 and a water diverter valve 22, and the instant heating component 21 is connected to one end of the first switching valve 10 and communicated with the first switching port; the water diverter valve 22 is arranged between the instant heating component 21 and the spray gun 50, and the water diverter valve 22 is respectively communicated with the instant heating component 21, the functional water outlet channel 50a and the self-cleaning water outlet channel 50b.

[0050] In this embodiment, a water diverter valve 22 is provided between the instant heating component 21 and the spray gun 50, and the water diverter valve 22 is connected to the functional water outlet channel 50a and the self-cleaning water outlet channel 50b of the spray gun 50. In this arrangement, the water circuit of the toilet can reasonably utilize the water diverter valve 22 to selectively control the water outlet of the functional water outlet channel 50a or the self-cleaning water outlet channel 50b of the spray gun 50 according to the requirements of different descaling steps, thereby performing comprehensive descaling and cleaning on the water circuit of the toilet and improving the cleanliness of the water circuit of the toilet.

[0051] The functional water outlet channel 50a of this embodiment includes a feminine wash water outlet sub-channel, a buttock wash water outlet sub-channel and a laxative water outlet sub-channel; of course, in other embodiments, the functional water outlet channel 50a may also include other water outlet sub-channels, which can be set according to the user's usage requirements.

[0052] Further, refer to Figure 1 The cleaning water circuit 20 also includes an air pump, which is connected between the instant heating component 21 and the water diversion valve 22. In this configuration, the air pump continuously compresses air through electricity to generate air pressure, and uses the air pressure to quickly transfer the water flowing into the instant heating component 21 to the position of the water diversion valve 22, thereby accelerating the flow rate of water in the entire cleaning water circuit pipeline to ensure the flushing effect of the spray gun 50.

[0053] In one embodiment, referring to Figure 1 The steam water circuit 40 includes a steam generator 41 and a water-steam separator 42 . The steam generator 41 is connected to the second switching valve 32 and communicated with the first port. The water-steam separator 42 is disposed between the steam generator 41 and the spray gun 50 and communicated with the steam generator 41 .

[0054] In this embodiment, a water vapor separator 42 is arranged between the steam generator 41 and the spray gun 50. In this way, when the anti-scaling liquid enters the steam generator 41, the water vapor separator 42 can separate the steam with large particle size in the air flow, so that the steam with smaller particle size enters the functional water outlet channel 50a, and then the steam with smaller particle size can more easily enter the functional water outlet channel 50a and adhere to the inner wall of the functional water outlet channel 50a, thereby improving the self-cleaning effect of the functional water outlet channel 50a.

[0055] In one embodiment, referring to Figure 1 The toilet water circuit also includes a pressure-reducing water inlet electromagnetic valve 60 connected to the end of the first switching valve 10 away from the cleaning water circuit 20, and the pressure-reducing water inlet electromagnetic valve 60 is connected to the first switching valve (10).

[0056] In this embodiment, the pressure-reducing water inlet solenoid valve 60 is used to more effectively control the flow direction of water in the water inlet pipe 10 in the cleaning water circuit 20 and the steam water circuit 40, thereby facilitating the toilet water circuit to switch to different working modes.

[0057] In one embodiment, referring to Figure 1 The toilet water circuit also includes a vacuum breaker 70 , which is disposed between the pressure-reducing water inlet solenoid valve 60 and the first switching valve 10 , and the vacuum breaker 70 is connected to the first switching valve 10 and the pressure-reducing water inlet solenoid valve 60 .

[0058] In this embodiment, the vacuum breaker 70 can automatically eliminate the negative pressure in the pipe of the toilet water circuit, so as to prevent the scale inhibitor liquid from being siphoned back to the position of the pressure-reducing water inlet solenoid valve 60 due to the negative pressure when the first switching valve 10 is energized and connected to the scale inhibitor filter element 31, thereby preventing the scale inhibitor liquid from flowing back and ensuring that water can flow in one direction in the toilet water circuit, thereby ensuring the normal operation of the toilet water circuit.

[0059] In one embodiment, referring to Figure 1 The vacuum breaker 70 is provided with an overflow port, and the overflow port is used to discharge excess water. With such a configuration, when the vacuum breaker 70 is pressurizing the pipe of the toilet waterway, if the water in the pipe of the toilet waterway fails to flow downstream in time, water with a volume larger than the volume of the pipe of the toilet waterway can flow out through the overflow port, thereby preventing excess water from being discharged from the pressure-reducing water inlet solenoid valve 60.

[0060] The present invention also provides a descaling control method for a toilet waterway, referring to Figure 1 and Figure 2 , the toilet water circuit is the toilet water circuit described above; in the first embodiment, the descaling control method of the toilet water circuit includes:

[0061] S10: Controlling the first switching valve 10 to be energized, so that the second switching port of the first switching valve 10 is connected to the anti-scaling component 30, so that water flows into the anti-scaling component 30 to form anti-scaling liquid;

[0062] S20: Control the heating of the steam water circuit 40;

[0063] S30 : controlling the anti-scaling assembly 30 , the steam waterway 40 and the spray gun 50 to be connected in sequence, so that the anti-scaling liquid enters the steam waterway 40 to form steam, and the steam is passed into the spray gun 50 .

[0064] In this embodiment, after the cleaning water circuit 20 of the toilet water circuit completes the flushing work for the user, the first switching valve 10 is controlled to be energized. When the first switching valve 10 is energized to the third preset time, the first switching valve 10 is connected to the anti-scaling component 30 by default, and water flows through the anti-scaling component 30 to form an anti-scaling liquid; and the formed anti-scaling liquid will be temporarily stored in the anti-scaling component 30, so that the anti-scaling liquid will not immediately enter the steam water circuit 40; in the process of the anti-scaling component 30 continuously producing the anti-scaling liquid, the steam water circuit 40 is controlled to be heated, so that the steam water circuit 40 has enough time to preheat until the steam water circuit 40 is heated. When the steam generator 41 is heated to the fourth preset time, the steam water circuit 40 is powered off and the heating is stopped; then the scale inhibition component 30 is controlled to be connected to the steam water circuit 40, so that the scale inhibition liquid stored in the scale inhibition component 30 can pass into the steam water circuit 40, a large amount of scale inhibition liquid exchanges heat with the high-temperature inner wall of the steam water circuit 40 to generate steam, and the steam is passed into the spray gun 50, and the spray gun 50 is sterilized and disinfected at high temperature. At the same time, the scale inhibition liquid will prevent the inner wall of the steam water circuit 40 from condensing scale again, and the scale inhibition liquid will flush away the powdery thin layer of scale that has just condensed in the steam water circuit 40 through the spray gun 50, thereby extending the service life of the steam generator 41.

[0065] Reference Figure 1 and Figure 2 The steps of controlling the anti-scaling assembly 30, the steam waterway 40 and the spray gun 50 to be connected in sequence so that the anti-scaling liquid enters the steam waterway 40 to form steam, and passing the steam into the spray gun 50 include:

[0066] When the steam waterway 40 stops working, the second switching valve 32 is controlled to be energized so that the first port of the second switching valve 32 is connected to the steam waterway 40, so that the antiscaling liquid enters the steam waterway 40 to form steam.

[0067] In this embodiment, the scale inhibition component 30 includes a scale inhibition filter element 31 and a second switching valve 32. When the steam water circuit 40 stops heating, the second switching valve 32 is controlled to be energized, thereby controlling the pipeline connection between the scale inhibition filter element 31 and the steam water circuit 40, so that the scale inhibition filter element 31 has sufficient time to form scale inhibition liquid, and the steam water circuit 40 has sufficient time to preheat.

[0068] Reference Figure 1 and Figure 2The step of controlling the anti-scaling assembly 30, the steam waterway 40 and the spray gun 50 to be connected in sequence so that the anti-scaling liquid enters the steam waterway 40 to form steam, and the step of passing the steam into the spray gun 50 also includes:

[0069] S40 : when the second switching valve 32 is powered on for a first preset time, the pressure reducing water inlet electromagnetic valve 60 , the first switching valve 10 and the second switching valve 32 are closed to allow the antiscaling liquid to remain in the steam waterway 40 .

[0070] In the present embodiment, the antiscaling liquid enters the steam waterway 40, and the antiscaling liquid exchanges heat with the inner wall of the steam waterway 40 to form steam. When the temperature of the steam waterway 40 drops to room temperature, the antiscaling liquid will not generate steam when in contact with the inner wall of the steam waterway 40. At this time, the power is cut off by controlling the pressure-reducing water inlet solenoid valve 60, the first switching valve 10 and the second switching valve 32, so that the newly generated antiscaling liquid from the antiscaling filter element 31 will no longer enter the steam generator 41 in the steam waterway 40, and the antiscaling liquid already stored in the steam generator 41 will not flow out of the water vapor separator 42, that is, the antiscaling liquid inside the steam generator 41 stays still, so that the antiscaling liquid can continue to react with the scale inside the steam generator, thereby playing a role in continuous descaling.

[0071] Reference Figure 1 and Figure 2 After the step of controlling the first switching valve 10 to be energized, the second switching port of the first switching valve 10 is connected to the anti-scaling component 30, and water flows into the anti-scaling component 30 to form the anti-scaling liquid, the step further includes:

[0072] S50: When the first switching valve 10 is powered on for a second preset time, the water diversion valve 22 is controlled to switch to communicate with the functional water outlet channel 50a of the spray gun 50;

[0073] S60: Control the second switching valve 32 to be de-energized, so that the second port of the second switching valve 32 is connected to the cleaning water path 20, so that the anti-scaling liquid enters the cleaning water path 20, and the anti-scaling liquid prevents scale from reaching the functional water outlet channel of the spray gun.

[0074] In this embodiment, the second switching valve 32 is also connected to the instant heating component 21 of the cleaning water circuit 20. When the scale inhibitor filter element 31 is in the process of forming the scale inhibitor liquid and the steam water circuit 40 is in the preheating idle time, the scale inhibitor liquid generated by the scale inhibitor filter element 31 can be first introduced into the cleaning water circuit 20 through the second switching valve 32, so that the scale inhibitor liquid can descale and flush the inner wall of the pipeline of the cleaning water circuit 20, thereby improving the cleanliness of the cleaning water circuit 20. After the preheating of the steam water circuit 40 is completed, the second switching valve 32 is controlled to be connected to the steam water circuit 40, so that the scale inhibitor liquid can exchange heat and descale with the high-temperature steam water circuit 40.

[0075] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A toilet waterway, It is characterized in that The toilet water circuit comprises: A first switching valve (10), the first switching valve (10) being provided with a first switching port and a second switching port; a cleaning water channel (20), the cleaning water channel (20) being connected to one end of the first switching valve (10) and communicating with the first switching port; a scale inhibition component (30), the scale inhibition component (30) being connected to one end of the first switching valve (10) and being in communication with the second switching port; a steam water path (40), the steam water path (40) being connected to an end of the scale inhibition component (30) away from the first switching valve (10) and being in communication with the scale inhibition component (30); and a spray gun (50), the spray gun (50) being connected to the steam water path (40) and the cleaning water path (20) respectively, and being in communication with the steam water path (40) and the cleaning water path (20) respectively; The anti-scaling component (30) comprises: an anti-scaling filter element, the anti-scaling filter element being connected to one end of the first switching valve (10) and being in communication with the second switching port; and a second switching valve (32), the second switching valve (32) being arranged between the anti-scaling filter element and the steam water path (40) and being in communication with the anti-scaling filter element, the second switching valve (32) being provided with a first port and a second port, the steam water path (40) being in communication with the first port, and the cleaning water path (20) being in communication with the second port; The toilet water circuit further comprises a pressure-reducing water inlet electromagnetic valve (60) connected to an end of the first switching valve (10) away from the cleaning water circuit (20), and the pressure-reducing water inlet electromagnetic valve (60) is in communication with the first switching valve (10).

2. The toilet waterway according to claim 1, It is characterized in that The spray gun (50) comprises a functional water outlet channel (50a) and a self-cleaning water outlet channel (50b), wherein the functional water outlet channel (50a) and the self-cleaning water outlet channel (50b) are arranged at an interval; The cleaning waterway (20) comprises: An instant heating component (21), the instant heating component (21) being connected to one end of the first switching valve (10) and communicating with the first switching port; and A water diversion valve (22), the water diversion valve (22) being arranged between the instant heating component (21) and the spray gun (50), and the water diversion valve (22) being respectively in communication with the instant heating component (21), the functional water outlet channel (50a) and the self-cleaning water outlet channel (50b).

3. The toilet waterway according to claim 2, It is characterized in that The steam water circuit (40) comprises: a steam generator (41), the steam generator (41) being connected to the second switching valve (32) and communicating with the first port; and A water vapor separator (42), wherein the water vapor separator (42) is disposed between the steam generator (41) and the spray gun (50), and is in communication with the steam generator (41).

4. The toilet waterway according to claim 1, It is characterized in that The toilet water circuit further comprises a vacuum breaker (70), the vacuum breaker (70) being arranged between the pressure-reducing water inlet electromagnetic valve (60) and the first switching valve (10), and the vacuum breaker (70) being in communication with the first switching valve (10) and the pressure-reducing water inlet electromagnetic valve (60).

5. A descaling control method for a toilet waterway according to any one of claims 1 to 4, It is characterized in that The descaling control method for the water channel of a toilet bowl comprises: Controlling the first switching valve (10) to be energized, so that the second switching port of the first switching valve (10) is connected to the anti-scaling component (30), so that water flows into the anti-scaling component (30) to form anti-scaling liquid; Controlling the heating of the steam water circuit (40); The anti-scaling component (30), the steam waterway (40) and the spray gun (50) are controlled to be connected in sequence, so that the anti-scaling liquid enters the steam waterway (40) to form steam, and the steam is passed into the spray gun (50).

6. The descaling control method for a toilet waterway according to claim 5, It is characterized in that The step of controlling the anti-scaling component (30), the steam waterway (40) and the spray gun (50) to be connected in sequence so that the anti-scaling liquid enters the steam waterway (40) to form steam, and after the step of passing the steam into the spray gun (50), the step further includes: When the second switching valve (32) is energized for a first preset time, the pressure-reducing water inlet electromagnetic valve (60), the first switching valve (10) and the second switching valve (32) are closed, so that the antiscaling liquid remains in the steam water path.

7. The descaling control method for a toilet waterway according to claim 6, It is characterized in that After the step of controlling the first switching valve (10) to be energized, the second switching port of the first switching valve (10) being connected to the anti-scaling component (30), and water flowing into the anti-scaling component (30) to form the anti-scaling liquid, the method further comprises: When the first switching valve (10) is powered on for a second preset time, the water diversion valve (22) is controlled to switch to communicate with the functional water outlet channel (50a) of the spray gun (50); The second switching valve (32) is controlled to be de-energized so that the second opening of the second switching valve (32) is connected to the cleaning water path, so that the anti-scaling liquid enters the cleaning water path (20), and the anti-scaling liquid prevents scale from being applied to the functional water outlet channel of the spray gun.

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