Cleaning pipeline and intelligent closestool

Abstract

The utility model relates to the technical field of intelligent closestools, and discloses a cleaning pipeline and an intelligent closestool. A water inlet channel, a water outlet channel and an air inlet channel which are communicated with one another are arranged in the vacuum breaker; the water inlet channel is communicated with the water outlet end of the water inlet valve; the scale inhibition device is provided with a containing cavity, the containing cavity is used for containing a slow-release scale inhibitor, the water inlet end of the containing cavity communicates with the water outlet channel, and the water outlet end of the containing cavity communicates with the spray head; the cleaning pipeline has a cleaning state and a scale inhibition state, in the cleaning state, the water inlet channel communicates with the water outlet channel, and water flow sequentially passes through the water inlet channel, the water outlet channel and the containing cavity; in the scale inhibition state, the slow-release scale inhibitor is steeped for the preset time and reaches the target concentration, the air inlet channel communicates with the water outlet channel, and residual water in the cleaning pipeline is replaced with water in the containing cavity. The cleaning pipeline and the intelligent closestool solve the problems that pipelines in the closestool are blocked, and the scale inhibitor is frequently added.

Description

Technical Field

[0001] The present application relates to the technical field of intelligent toilets, specifically to a cleaning pipeline and an intelligent toilet. Background Art

[0002] An intelligent toilet is a modern bathroom product integrating a variety of high-tech functions. It can not only provide basic toilet functions, but also has a variety of user-friendly designs such as automatic cleaning, warm air drying, and deodorization, greatly improving the comfort and convenience of use.

[0003] An intelligent toilet has two waterway systems, one is a flushing system for discharging excrement, and the other is a cleaning system for cleaning the human body. The pipeline aperture of the flushing system is large, and the flushing water volume is large, so the influence of scale formation is minimal. However, the pipeline diameter of the cleaning system is small, and the water temperature for cleaning is relatively high, making it easy to generate scale. Especially at the cleaning nozzle, due to the small aperture of the nozzle, scale is likely to accumulate and block at the nozzle, resulting in poor water flow when the nozzle sprays water and affecting the user experience.

[0004] In related technologies, scale inhibitors are added to the cleaning pipeline for scale removal. The scale inhibitor has a fast dissolution rate, but a short service life and needs to be added frequently, resulting in increased costs and cumbersome operations. Utility Model Content

[0005] In view of this, the present application provides a cleaning pipeline and an intelligent toilet to solve or improve the problems of pipeline blockage inside the toilet and frequent addition of scale inhibitors.

[0006] In a first aspect, the present application provides a cleaning pipeline, including:

[0007] An inlet valve, whose inlet end is connected to a water source;

[0008] A vacuum breaker, with an interconnected inlet channel, outlet channel, and air inlet channel inside. The inlet channel is connected to the outlet end of the inlet valve;

[0009] A scale inhibition device, provided with a receiving cavity for setting a slow-release scale inhibitor. The inlet end of the receiving cavity is connected to the outlet channel, and the outlet end of the receiving cavity is used to be connected to a nozzle;

[0010] The cleaning pipeline has a cleaning state and a scale inhibition state. In the cleaning state, the inlet valve is opened, the air inlet channel is closed, the inlet channel and the outlet channel are connected, and water flows through the inlet channel, outlet channel, and receiving cavity in sequence and sprays out from the nozzle;

[0011] In the scale inhibition state, the inlet valve is closed, the slow-release scale inhibitor is impregnated for a preset time and reaches a target concentration, the inlet channel is closed, and the air inlet channel and the outlet channel are connected to replace the residual water in the cleaning pipeline with the water in the receiving cavity.

[0012] Beneficial effects: When cleaning, the water inlet valve is opened, the air inlet channel is closed, the water inlet channel and the water outlet channel are connected, and the water flow passes through the water inlet channel, the water outlet channel and the accommodating cavity in sequence and sprays out from the nozzle for cleaning. Since the water flow rate is fast, when the water flow passes through the accommodating cavity, the dissolution amount of the slow-release scale inhibitor arranged in the accommodating cavity is negligible, which can improve the service life of the slow-release scale inhibitor and does not need to be replaced frequently. After the cleaning is completed, the water inlet valve is closed, and there is residual water in the cleaning pipeline. The slow-release scale inhibitor is impregnated in the residual water in the accommodating cavity, and the slow-release scale inhibitor begins to dissolve. When the scale inhibitor in the residual water reaches the target concentration, scale-inhibiting water is formed. The scale-inhibiting water has the functions of dispersing the insoluble inorganic salts in the water, preventing or interfering with the precipitation and scaling of the insoluble inorganic salts on the metal surface, and maintaining good heat transfer effect of the metal equipment. The air inlet channel and the water outlet channel are connected to discharge the residual water in the cleaning pipeline. The scale-inhibiting water displaces the residual water, and the scale-inhibiting water fills the cleaning pipeline to prevent scale formation and prevent the nozzle from being blocked; the air inlet channel is opened to prevent negative pressure from being formed in the cleaning pipeline and the residual water cannot be discharged.

[0013] The slow-release scale inhibitor is a scale inhibitor that dissolves slowly.

[0014] In an optional embodiment, it further includes a scale-inhibiting pipe and a drainage mechanism. The water outlet end of the accommodating cavity is connected to the nozzle through the scale-inhibiting pipe, and the drainage mechanism is installed on the scale-inhibiting pipe. In the scale-inhibiting state, the drainage mechanism is used to displace the residual water in the cleaning pipeline with the water in the accommodating cavity.

[0015] In an optional embodiment, a partition is arranged in the accommodating cavity, and the partition divides the accommodating cavity into a first chamber and a second chamber;

[0016] The water outlet channel is respectively connected to the water inlet end of the first chamber and the water inlet end of the second chamber. The water outlet ends of the first chamber and the second chamber are both connected to the water inlet end of the scale-inhibiting pipe. The first chamber is used to arrange the slow-release scale inhibitor;

[0017] In the cleaning state, the water outlet channel is connected to the water inlet end of the second chamber;

[0018] In the scale-inhibiting state, the water outlet channel is connected to the water inlet end of the first chamber.

[0019] In an optional embodiment, it further includes a switching valve. The switching valve is provided with a water inlet, a first water outlet and a second water outlet. The water inlet is connected to the water outlet channel, the first water outlet is connected to the water inlet end of the first chamber, and the second water outlet is connected to the water inlet end of the second chamber;

[0020] In the cleaning state, the switching valve controls the water inlet to be connected to the second water outlet, and the second water outlet is connected to the water inlet end of the second chamber;

[0021] In the scale inhibition state, the switching valve controls the communication between the water inlet and the first water outlet, and the first water outlet is communicated with the water inlet end of the first chamber.

[0022] In an alternative embodiment, the drainage mechanism includes a suction pump. The water outlet end of the scale inhibition pipe is communicated with the water inlet end of the suction pump, and the water outlet end of the suction pump is used to be communicated with a spray head.

[0023] In an alternative embodiment, the drainage mechanism includes an air pump. A communication hole is formed in the scale inhibition pipe, and a one-way valve is installed on the communication hole. The air outlet end of the air pump is communicated with the one-way valve to supply air into the scale inhibition pipe by the air pump.

[0024] In an alternative embodiment, an electrolyzed water device is further included. The water inlet end of the electrolyzed water device is communicated with the water outlet end of the suction pump, and the water outlet end of the electrolyzed water device is used to be communicated with a spray head.

[0025] In an alternative embodiment, a heater is further included. The water inlet end of the heater is communicated with the water outlet end of the electrolyzed water device, and the water outlet end of the heater is used to be communicated with a spray head.

[0026] In an alternative embodiment, a water path switching and distributing valve is further included. Multiple water path channels with different functions are arranged in the spray head. One end of the water path switching and distributing valve is communicated with the water outlet end of the heater, and the other end is communicated with the multiple water path channels with different functions.

[0027] In an alternative embodiment, a pre-filter is further included. The water inlet end of the pre-filter is communicated with a water source, and the water outlet end of the pre-filter is communicated with the water inlet end of a water inlet valve.

[0028] In a second aspect, the present application further provides an intelligent toilet, including: a cleaning pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0030] Figure 1 It is a schematic structural diagram of a cleaning pipeline according to an embodiment of the present application;

[0031] Figure 2 It is a schematic structural diagram of a cleaning pipeline according to another embodiment of the present application;

[0032] Figure 3 It is a schematic structural diagram of a cleaning pipeline according to still another embodiment of the present application;

[0033] Figure 4 Schematic structural diagram of a cleaning pipeline for another embodiment of the present application;

[0034] Figure 5 Explosion diagram of a vacuum breaker in a cleaning pipeline for an embodiment of the present application;

[0035] Figure 6 Cross-sectional view of a vacuum breaker in a cleaning pipeline for an embodiment of the present application.

[0036] Description of reference numerals:

[0037] 1, water inlet valve; 2, vacuum breaker; 21, cavity; 211, inner cavity; 212, water inlet channel; 213, water outlet channel; 22, end cover; 221, air inlet channel; 23, adjusting member; 231, sealing portion; 232, ventilation portion; 233, ventilation groove; 24, sealing ring; 25, bolt; 3, scale inhibitor device; 4, electrolyzed water device; 5, heater; 6, water path switching and dividing valve; 7, spray head; 8, suction pump; 9, air pump; 10, angle valve; 11, pre-filter; 12, switching valve. Detailed implementation manners

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0039] The following combines with Figures 1 to 6 , to describe the embodiments of the present application.

[0040] According to an embodiment of the present application, on the one hand, a cleaning pipeline is provided, including:

[0041] A water inlet valve 1, whose water inlet end is communicated with a water source;

[0042] A vacuum breaker 2, with a mutually connected water inlet channel 212, water outlet channel 213, and air inlet channel 221 inside, and the water inlet channel 212 is communicated with the water outlet end of the water inlet valve 1;

[0043] A scale inhibitor device 3, provided with a receiving cavity for setting a slow-release scale inhibitor, the water inlet end of the receiving cavity is communicated with the water outlet channel 213, and the water outlet end of the receiving cavity is used to be communicated with the spray head 7;

[0044] The cleaning pipeline has a cleaning state and a scale inhibition state. In the cleaning state, the water inlet valve 1 is opened, the air inlet channel 221 is closed, the water inlet channel 212 and the water outlet channel 213 are connected, and water flows through the water inlet channel 212, the water outlet channel 213 and the accommodation cavity in sequence, and sprays out from the nozzle 7;

[0045] In the scale inhibition state, the water inlet valve 1 is closed, the slow-release scale inhibitor is impregnated for a preset time and reaches the target concentration, the water inlet channel 212 is closed, the air inlet channel 221 and the water outlet channel 213 are connected, and the residual water in the cleaning pipeline is replaced with the water in the accommodation cavity.

[0046] When cleaning, the water inlet valve 1 is opened, the air inlet channel 221 is closed, the water inlet channel 212 and the water outlet channel 213 are connected, and water flows through the water inlet channel 212, the water outlet channel 213 and the accommodation cavity in sequence and sprays out from the nozzle 7 for cleaning. Due to the fast water flow speed, when the water flow passes through the accommodation cavity, the dissolution amount of the slow-release scale inhibitor arranged in the accommodation cavity is negligible, which can improve the service life of the slow-release scale inhibitor and does not need to be replaced frequently. After the cleaning is completed, the water inlet valve 1 is closed, and there is residual water in the cleaning pipeline. The slow-release scale inhibitor is impregnated in the residual water in the accommodation cavity, and the slow-release scale inhibitor begins to dissolve. When the scale inhibitor in the residual water reaches the target concentration, scale-inhibiting water is formed. The scale-inhibiting water has the functions of dispersing the insoluble inorganic salts in water, preventing or interfering with the precipitation and scaling of the insoluble inorganic salts on the metal surface, and maintaining good heat transfer effect of the metal equipment. The air inlet channel 221 and the water outlet channel 213 are connected to drain the residual water in the cleaning pipeline, and the scale-inhibiting water replaces the residual water. The scale-inhibiting water fills the cleaning pipeline to prevent scale formation and prevent the nozzle 7 from being blocked; the air inlet channel 221 is opened to prevent negative pressure from being formed in the cleaning pipeline and the residual water cannot be drained.

[0047] In a specific embodiment, the preset time is 1 and the target concentration is 1 PPM.

[0048] In an embodiment, it further includes a scale inhibition pipe and a drainage mechanism. The water outlet end of the accommodation cavity is connected to the nozzle 7 through the scale inhibition pipe, and the drainage mechanism is installed on the scale inhibition pipe. In the scale inhibition state, the drainage mechanism is used to replace the residual water in the cleaning pipeline with the water in the accommodation cavity.

[0049] In an embodiment, a partition is arranged in the accommodation cavity, and the partition divides the accommodation cavity into a first chamber and a second chamber;

[0050] The water outlet channel 213 is respectively connected to the water inlet end of the first chamber and the water inlet end of the second chamber. The water outlet ends of the first chamber and the second chamber are both connected to the water inlet end of the scale inhibition pipe. The first chamber is used to arrange the slow-release scale inhibitor;

[0051] In the cleaning state, the water outlet channel 213 is connected to the water inlet end of the second chamber;

[0052] In the scale inhibition state, the water outlet channel 213 communicates with the water inlet end of the first chamber.

[0053] In one embodiment, it further includes a switching valve 12. The switching valve 12 is provided with a water inlet, a first water outlet and a second water outlet. The water inlet communicates with the water outlet channel 213, the first water outlet communicates with the water inlet end of the first chamber, and the second water outlet communicates with the water inlet end of the second chamber.

[0054] In the cleaning state, the switching valve 12 controls the water inlet to communicate with the second water outlet, and the second water outlet communicates with the water inlet end of the second chamber.

[0055] In the scale inhibition state, the switching valve 12 controls the water inlet to communicate with the first water outlet, and the first water outlet communicates with the water inlet end of the first chamber.

[0056] In the cleaning state, the water source adjusts the flow path through the switching valve 12. The water source is transported from the second water outlet to the second chamber. The water path during cleaning does not pass through the slow-release scale inhibitor, which can reduce the dissolution amount of the slow-release scale inhibitor and improve the service life of the slow-release scale inhibitor. In the scale inhibition state, the water source adjusts the flow path through the switching valve 12. The water source is transported from the first water outlet to the first chamber. The slow-release scale inhibitor slowly dissolves in the accumulated water in the first chamber. When the concentration of the scale inhibitor reaches the target concentration, scale-inhibiting water is formed. The scale-inhibiting water prevents the formation of water scale. The drainage mechanism is opened to discharge the residual water in the pipeline and fill the pipeline with the scale-inhibiting water to prevent the formation of water scale. Dividing the accommodation chamber into the first chamber and the second chamber can prevent the water flow in the pipeline from dissolving the slow-release scale inhibitor during the cleaning state and extend the service life of the slow-release scale inhibitor.

[0057] In one embodiment, the water outlet ends of the first chamber and the second chamber are connected to the first end of the scale inhibition pipe through a tee joint.

[0058] In one embodiment, the drainage mechanism includes a suction pump 8. The water outlet end of the scale inhibition pipe is connected to the water inlet end of the suction pump 8, and the water outlet end of the suction pump 8 is used to communicate with the spray head 7.

[0059] In one embodiment, the suction pump 8 can be located on the pipeline between the vacuum breaker and the spray head.

[0060] In one embodiment, the drainage mechanism includes an air pump 9. A communication hole is opened on the scale inhibition pipe, and a one-way valve is installed on the communication hole. The air outlet end of the air pump 9 is communicated with the one-way valve to supply air into the scale inhibition pipe by the air pump 9.

[0061] In one embodiment, when in the scale inhibition state, the inlet valve 1 is closed, the air inlet channel 221 communicates with the water outlet channel 213. When the suction pump 8 discharges the accumulated water in the cleaning pipeline, air enters the cleaning pipeline from the air inlet pipeline to prevent the formation of low pressure in the cleaning pipeline and unable to discharge the accumulated water in the cleaning pipeline.

[0062] In one embodiment, when in the scale inhibition state, the inlet valve 1 is closed, the air inlet passage 221 is communicated with the water outlet passage 213, and the air pump 9 blows out the residual water in the cleaning pipeline.

[0063] In one embodiment, the suction pump 8 and the air pump 9 simultaneously discharge the accumulated water in the cleaning pipeline.

[0064] In one embodiment, it further includes an electrolyzed water device 4. The water inlet end of the electrolyzed water device 4 is communicated with the water outlet end of the suction pump 8, and the water outlet end of the electrolyzed water device 4 is used to be communicated with the nozzle 7.

[0065] The electrolyzed water device 4 can sterilize and disinfect the water flow to protect the health of users.

[0066] In one embodiment, it further includes a heater 5. The water inlet end of the heater 5 is communicated with the water outlet end of the electrolyzed water device 4, and the water outlet end of the heater 5 is used to be communicated with the nozzle 7.

[0067] Heat the cleaning water in the cleaning pipeline to improve the user experience.

[0068] In one embodiment, it further includes a water path switching diverter valve 6. Multiple water path channels with different functions are provided in the nozzle 7. One end of the water path switching diverter valve 6 is communicated with the water outlet end of the heater 5, and the other end is communicated with the multiple water path channels with different functions.

[0069] In one embodiment, it further includes a pre-filter 11. The water inlet end of the pre-filter 11 is communicated with the water source, and the water outlet end of the pre-filter 11 is communicated with the water inlet end of the inlet valve 1.

[0070] In one embodiment, it further includes an angle valve 10. The water inlet end of the angle valve 10 is installed on the faucet, and the water outlet end of the angle valve 10 is communicated with the water inlet end of the pre-filter 11.

[0071] In one embodiment, as Figures 5 to 6 shown, the vacuum breaker 2 includes a cavity 21, an end cap 22 and an adjusting member 23. The cavity 21 has an inner cavity 211. A water inlet passage 212 and a water outlet passage 213 communicating with the inner cavity 211 are formed on the cavity wall of the cavity 21. An installation opening is formed on the cavity 21, and the end cap 22 is hermetically covered on the installation opening. An air inlet passage 221 communicating with the inner cavity 211 is formed in the end cap 22. The adjusting member 23 is movably connected in the inner cavity 211 and is adapted to switch between a water passing position and an air passing position. When in the water passing position, the water inlet passage 212 is communicated with the water outlet passage 213. When in the air passing position, the air inlet passage 221 is communicated with the water outlet passage 213.

[0072] In one embodiment, the adjusting member 23 includes a sealing portion 231 and a ventilation portion 232 which are fixedly connected. The ventilation portion 232 is slidably connected within the intake passage 221. A ventilation groove 233 is formed by inwardly recessing the side portion of the ventilation portion 232 to communicate the intake passage 221 with the inner cavity 211. In the water passing position, the sealing portion 231 presses against the end of the intake passage 221. In the ventilation position, the sealing portion 231 disengages from the end of the intake passage 221.

[0073] In one embodiment, a ventilation gap is formed between the side of the sealing portion 231 and the wall of the inner cavity 211. In the ventilation position, the ventilation groove 233 communicates with the ventilation gap, thereby enabling the intake passage 221 to communicate with the water outlet passage 213.

[0074] In one embodiment, a sealing ring 24 is provided between the end cap 22 and the inner wall of the cavity 21.

[0075] In one embodiment, the end cap 22 is fixed to the cavity 21 by bolts 25.

[0076] In one embodiment, it further includes a water path switching diverter valve 6. Multiple water path channels with different functions are provided in the spray head 7. The water path switching diverter valve 6 is used to switch the water flow to multiple water path channels.

[0077] Embodiment 1:

[0078] As Figure 1 shown, in the cleaning state, the angle valve 10 and the inlet valve 1 are opened. The water flow passes through the pre-filter 11 for filtration, the inlet valve 1 and the inlet passage 212 and enters the inner cavity 211. The water flow pushes the sealing portion 231 upwards. The sealing portion 231 seals the end of the intake passage 221. The water flow is output from the water outlet passage 213 and sequentially passes through the accommodation cavity, the scale inhibitor tube, the suction pump 8, the electrolyzed water device 4, the heater 5, the water path switching diverter valve 6 and the spray head 7. The water flow sprays out from the spray head 7 for cleaning. After the cleaning is completed, the inlet valve 1 is closed. The slow-release scale inhibitor is impregnated for 1 minute. The concentration of the scale inhibitor water reaches 1 PPM. The suction pump 8 is turned on. A negative pressure is formed in the cleaning pipeline. The sealing portion 231 moves downwards to open the intake passage 221. Air enters the inner cavity 211 through the ventilation groove 233 and communicates with the water outlet passage 213 through the ventilation gap, discharging the accumulated water in the cleaning pipeline and filling the scale inhibitor water in the accommodation cavity into the cleaning pipeline.

[0079] According to the weight of the slow-release scale inhibitor, adjust the standing time. As long as the concentration is greater than 1 PPM, the scale inhibition effect can be achieved. When the scale inhibitor is 5 g and the standing time is 1 minute, the concentration is greater than 1 PPM. As the weight increases, the standing time shortens. At the same time, according to the increase in the usage time and the consumption of the scale inhibitor, the standing time can be intelligently adjusted.

[0080] Embodiment 2:

[0081] As Figure 2 shown, different from Embodiment 1, the drainage mechanism uses an air pump 9. The air pump 9 blows air into the scale inhibitor tube through a one-way valve to drain the accumulated water in the cleaning pipeline and make the scale inhibitor water in the accommodating cavity fill the cleaning pipeline.

[0082] Embodiment Three:

[0083] As Figure 3 shown, a partition is arranged in the accommodating cavity. The partition divides the accommodating cavity into a first chamber and a second chamber. A slow-release scale inhibitor is arranged in the first chamber. In the cleaning state, the angle valve 10 and the water inlet valve 1 are opened. Water flows through the pre-filter 11, the water inlet valve 1 and the water inlet channel 212 into the inner cavity 211. The water flow pushes the sealing part 231 upwards. The sealing part 231 seals the end of the air inlet channel 221. The water flow is output from the water outlet channel 213 and successively passes through the switching valve 12, the second chamber, the suction pump 8, the electrolyzed water device 4, the heater 5, the water path switching and dividing valve 6 and the nozzle 7. The water flow sprays out from the nozzle 7 for cleaning. After the cleaning is finished, the switching valve 12 is switched so that the water flow passes through the first chamber to impregnate the slow-release scale inhibitor. The water inlet valve 1 is closed. When the slow-release scale inhibitor is impregnated for 1 minute and the concentration of the scale inhibitor water reaches 1 PPM, the suction pump 8 is turned on. A negative pressure is formed in the cleaning pipeline. The sealing part 231 moves downwards to open the air inlet channel 221. Air enters the inner cavity 211 through the ventilation groove 233 and communicates with the water outlet channel 213 through the ventilation gap to drain the accumulated water in the cleaning pipeline and make the scale inhibitor water in the accommodating cavity fill the cleaning pipeline.

[0084] Embodiment Four:

[0085] As Figure 4 shown, different from Embodiment 3, the drainage mechanism uses an air pump 9. The air pump 9 blows air into the scale inhibitor tube through a one-way valve to drain the accumulated water in the cleaning pipeline and make the scale inhibitor water in the accommodating cavity fill the cleaning pipeline.

[0086] According to an embodiment of the present application, on the other hand, an intelligent toilet is further provided, including: a cleaning pipeline.

[0087] Although the embodiments of the present application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present application. Such modifications and variations all fall within the scope defined by the appended claims of the present application.

Claims

1. A cleaning pipeline, characterized in that, Comprising: An inlet valve (1) whose inlet end is communicated with a water source; A vacuum breaker (2) with an internally provided water inlet channel (212), a water outlet channel (213) and an air inlet channel (221) that are communicated with each other, and the water inlet channel (212) is communicated with the outlet end of the inlet valve (1); A scale inhibitor device (3) provided with a receiving cavity for setting a slow-release scale inhibitor, the water inlet end of the receiving cavity is communicated with the water outlet channel (213), and the water outlet end of the receiving cavity is used to be communicated with a spray head (7); The cleaning pipeline has a cleaning state and a scale inhibition state. In the cleaning state, the inlet valve (1) is opened, the air inlet channel (221) is closed, the water inlet channel (212) and the water outlet channel (213) are communicated, and water flows through the water inlet channel (212), the water outlet channel (213) and the receiving cavity in sequence and sprays out from the spray head (7); In the scale inhibition state, the inlet valve (1) is closed, the slow-release scale inhibitor is impregnated for a preset time and reaches a target concentration, the water inlet channel (212) is closed, the air inlet channel (221) and the water outlet channel (213) are communicated, and the residual water in the cleaning pipeline is replaced with the water in the receiving cavity.

2. The cleaning pipeline according to claim 1, wherein It further includes a scale inhibition pipe and a drainage mechanism. The water outlet end of the receiving cavity is communicated with the spray head (7) through the scale inhibition pipe, and the drainage mechanism is installed on the scale inhibition pipe. In the scale inhibition state, the drainage mechanism is used to replace the residual water in the cleaning pipeline with the water in the receiving cavity.

3. The cleaning pipeline according to claim 2, wherein A partition is provided in the receiving cavity, and the partition divides the receiving cavity into a first chamber and a second chamber; The water outlet channel (213) is respectively communicated with the water inlet end of the first chamber and the water inlet end of the second chamber, the water outlet ends of the first chamber and the second chamber are both communicated with the water inlet end of the scale inhibition pipe, and the first chamber is used to set the slow-release scale inhibitor; In the cleaning state, the water outlet channel (213) is communicated with the water inlet end of the second chamber; In the scale inhibition state, the water outlet channel (213) is communicated with the water inlet end of the first chamber.

4. The cleaning pipeline according to claim 3, wherein It further includes a switching valve. The switching valve is provided with a water inlet, a first water outlet and a second water outlet. The water inlet is communicated with the water outlet channel (213), the first water outlet is communicated with the water inlet end of the first chamber, and the second water outlet is communicated with the water inlet end of the second chamber; In the cleaning state, the switching valve controls the water inlet to be communicated with the second water outlet, and the second water outlet is communicated with the water inlet end of the second chamber; In the scale inhibition state, the switching valve controls the water inlet to be communicated with the first water outlet, and the first water outlet is communicated with the water inlet end of the first chamber.

5. The cleaning pipeline according to claim 2, wherein The drainage mechanism includes a suction pump (8). The water outlet end of the scale inhibition pipe is communicated with the water inlet end of the suction pump (8), and the water outlet end of the suction pump (8) is used to be communicated with the spray head (7).

6. The cleaning pipeline according to claim 2 or 5, characterized in that The drainage mechanism includes an air pump (9). A communication hole is formed in the scale inhibitor pipe, and a one-way valve is installed on the communication hole. The air outlet end of the air pump (9) is communicated with the one-way valve so that the air pump (9) supplies air into the scale inhibitor pipe.

7. The cleaning pipeline according to claim 5, characterized in that, It further includes an electrolyzed water device (4). The water inlet end of the electrolyzed water device (4) is communicated with the water outlet end of the suction pump (8), and the water outlet end of the electrolyzed water device (4) is used to be communicated with the spray head (7).

8. The cleaning pipeline according to claim 7, characterized in that, It further includes a heater (5). The water inlet end of the heater (5) is communicated with the water outlet end of the electrolyzed water device (4), and the water outlet end of the heater (5) is used to be communicated with the spray head (7).

9. The cleaning pipeline according to claim 8, wherein It further includes a water path switching diverter valve (6). Multiple water path channels with different functions are arranged in the spray head (7). One end of the water path switching diverter valve (6) is communicated with the water outlet end of the heater (5), and the other end is communicated with the multiple water path channels with different functions.

10. An intelligent toilet, characterized in that, It includes the cleaning pipeline according to any one of claims 1 to 9.

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