CN220414420U - Flushing system of intelligent closestool and intelligent closestool - Google Patents

Abstract

The application discloses intelligent closestool's flushing system and intelligent closestool, this intelligent closestool's flushing system includes: the sealed water tank comprises a tank body and a water tank cover which is connected with the tank body in a sealing way through a sealing ring, and liquid is stored in the tank body; the direct-current variable-frequency water pump comprises a water pump water inlet and a water pump water outlet, wherein the water pump water inlet extends into liquid in the tank body so as to pump out the liquid in the water tank; the water diversion valve is arranged on the water tank cover and is connected with the water outlet of the direct-current variable-frequency water pump so as to control the outflow direction of liquid; the water tank cover is also provided with an air inlet hole and a secondary pontoon which is arranged corresponding to the air inlet hole, the secondary pontoon moves towards the air inlet hole under the action of rising water level, and the air inlet hole is closed after the water level rises to a set water level, so that a closed air cavity is formed, and the anti-siphon function of the water inlet valve is ensured to work normally. The structure solves the technical problem that the built-in water tank must be arranged at a high position of ceramic.

Description

Flushing system of intelligent closestool and intelligent closestool

Technical Field

The application relates to the technical field of intelligent bathroom, in particular to a flushing system of an intelligent closestool and the intelligent closestool.

Background

Flushing systems of existing intelligent toilet products in the industry are generally divided into zero-water-pressure type flushing systems and anhydrous-tank type flushing systems.

The zero-hydraulic type intelligent closestool product is provided with a built-in water tank, water in the built-in water tank is pumped by a water pump and then flows through a waterway switching valve to realize a flushing function, and external pressure water supply is not needed. The water tank-free type intelligent closestool product is free of an embedded water tank, and external pressure water supply is directly used for realizing flushing through the waterway switching valve.

The overflow of the traditional zero-water-pressure water tank is higher than the lowest overflow line of the ceramic, so that the water tank of the product has the lowest limit of height, and the appearance of the whole product cannot realize ultrathin design; the product has the disadvantage of minimum water inlet pressure requirement because no water tank is provided and no built-in water tank needs external pressure water supply.

Disclosure of Invention

The application provides a flushing system of intelligent closestool and intelligent closestool can solve the technical problem that the built-in water tank must set up in ceramic high position among the prior art, has still solved the no water tank formula product simultaneously and has minimum required technical problem to the pressure of intaking.

In order to solve the technical problems, one technical scheme adopted by the application is as follows: there is provided a flush system for a smart toilet, comprising: the sealed water tank comprises a tank body and a water tank cover which is connected with the tank body in a sealing way through a sealing ring, and liquid is stored in the tank body; the direct-current variable-frequency water pump comprises a water pump water inlet and a water pump water outlet, wherein the water pump water inlet extends into liquid in the tank body so as to pump out the liquid in the water tank; the water diversion valve is arranged on the water tank cover and is connected with a water pump water outlet of the direct-current variable-frequency water pump so as to control the outflow direction of the liquid; the water tank cover is also provided with an air inlet hole and a secondary pontoon which is arranged corresponding to the air inlet hole, the secondary pontoon moves towards the air inlet hole under the action of rising water level, and closes the air inlet hole after the water level rises to a set water level, so as to form a closed air cavity, and further ensure that the anti-siphon function of the water inlet valve can work normally.

The intelligent closestool flushing system further comprises a water inlet valve for controlling the sealed water tank to inlet water, and the water inlet valve is fixedly connected with the bottom of the sealed water tank in a sealing mode through bottom threads.

The direct-current variable-frequency water pump is arranged at the lower part of the box body, a water pump water inlet of the direct-current variable-frequency water pump is in sealing connection with the side wall of the box body through a water pump sealing ring, and a water pump water outlet is connected with a water diversion valve arranged on the water tank cover so as to pump water in the sealed water tank into the ceramic closestool through the water diversion valve.

The water diversion valve comprises a side flushing water outlet, a bottom flushing water outlet and a water diversion valve core for controlling the opening and closing of the bottom flushing water outlet, and the water diversion valve core controls the opening and closing of the side flushing water outlet and the bottom flushing water outlet.

The water diversion valve comprises a water diversion valve rotating shaft arranged on the water diversion valve core shaft core and a water diversion valve motor connected with the water diversion valve rotating shaft, and the water diversion valve motor drives the water diversion valve core to rotate through driving the water diversion valve rotating shaft so as to realize the opening and closing of the bottom flushing water outlet.

The water diversion valve comprises a water diversion valve bent pipe, one end of the water diversion valve bent pipe is connected with the side flushing water outlet, and the other end of the water diversion valve bent pipe is connected with the side flushing spray head.

The side-flushing device comprises a water diversion valve elbow, a side-flushing spray nozzle, a self-suction tee joint, a water diversion valve elbow, a side-flushing spray nozzle and a water diversion valve, wherein the side-flushing spray nozzle is further provided with the side-flushing spray nozzle, the side wall of the side-flushing spray nozzle is further provided with the self-suction tee joint, the self-suction tee joint comprises two water inlets and a water outlet, one water inlet is connected with an external waterway, the other water inlet is connected with foam liquid in a secondary liquid tank in the sealed water tank through a hose, and the water outlet is connected with the side-flushing spray nozzle so as to suck foam liquid from the secondary liquid tank through the Venturi effect of the self-suction tee joint to mix with liquid in the side-flushing spray nozzle.

And the side-flushing air suction pipe is internally provided with a side-flushing flocculation flow sheet so as to increase the flow potential of water flowing through the side-flushing air suction pipe.

The low-flushing water outlet of the water diversion valve is connected to a bottom flushing nozzle in the ceramic closestool through a pipeline, and the bottom flushing nozzle is fixed on a bottom flushing hole of the ceramic closestool through a fixing piece; wherein, the bottom punching hole is arranged opposite to the sewage outlet of the ceramic closestool.

In order to solve the technical problem, another technical scheme adopted by the application is as follows: there is provided a smart toilet, wherein the smart toilet comprises a toilet bowl and a flushing system connected with the toilet bowl through a pipeline, the flushing system being the flushing system of any one of the above-mentioned smart toilets.

The beneficial effects of this application are: compared with the prior art, this application provides kinetic energy for flushing system through direct current variable frequency water pump, make the water in the water tank flow into ceramic closestool through the shunt valve in, after the bath is ended, pour into water into the water tank through water inlet system, along with the rising of water level, the vice flotation pontoon on the water tank lid rises along with the rising of water level and to the inlet port butt on the water tank lid, thereby form inclosed air chamber in the messenger water tank, under the air chamber effect, unnecessary water can spill over into ceramic closestool through the shunt valve in the water tank, CL line (water level safety line) of messenger's water intaking valve in the water inlet system both is higher than the water tank overflows the waterline and is less than ceramic overflows the waterline, thereby avoid water level in the water tank when being less than ceramic overflows the waterline, the phenomenon of suck-back appears. And further solves the technical problem that the overflow water level of the traditional zero-water-pressure water tank is higher than the minimum overflow water level of the ceramic, and also solves the problem that the water tank-free closestool has the minimum water inlet pressure requirement.

Drawings

FIG. 1 is a schematic diagram of an exploded view of one embodiment of a flush system of a smart toilet of the present application;

FIG. 2 is a schematic diagram of an exploded view of one embodiment of a smart toilet.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The terms "first," "second," "third," and the like in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. All directional indications (such as up, down, left, right, front, back … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular gesture (as shown in the drawings), and if the particular gesture changes, the directional indication changes accordingly. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

The present application is described in detail below with reference to the accompanying drawings and examples.

Referring to fig. 1, fig. 1 is an exploded view of an embodiment of a flushing system of a smart toilet. As shown in fig. 1, the flushing system of the intelligent toilet includes: a sealed water tank 10, a direct current variable frequency water pump 20 and a diverter valve 30.

The sealed water tank 10 comprises a tank body 11 and a tank cover 12 which is in sealing connection with the tank body 11 through a water tank sealing ring. Wherein the tank 11 stores a liquid. The liquid includes foam and water, and is not limited herein. The tank gasket is provided at a connection position of the tank cover 12 and the tank body 11 so that the tank body 11 and the tank cover 12 form a sealed connection. The water tank sealing ring is made of resin.

The direct-current variable-frequency water pump 20 comprises a water pump water inlet 21 and a water pump water outlet 22, wherein the water pump water inlet 21 extends towards the liquid direction in the box 11 so as to pump the liquid stored in the box 11 out of the water pump water outlet 22. Wherein the water pump outlet 22 is used for controlling the outflow direction of the liquid.

The water diversion valve 30 is disposed on the water tank cover 12 and connected to the water pump outlet 22 of the dc variable frequency water pump 20 to further control the outflow direction of the pumped liquid. Specifically, the water diversion valve 30 includes at least two water outlets, and the position and direction of the liquid flowing into the ceramic toilet bowl are controlled by controlling the on/off of the water outlets.

In this embodiment, the water tank cover 12 is further provided with an air inlet hole 121, and a secondary pontoon 122 disposed corresponding to the air inlet hole 121. The auxiliary pontoon 122 moves towards the air inlet under the action of the rising water level, and closes the air inlet 121 after the water level rises to the set water level, so that the water tank cover 12 and the tank body 11 form a sealed air cavity, and the anti-siphon function of the water inlet valve can work normally on the premise that the integral water level in the sealed water tank is lower than the ceramic overflow line. Specifically, the overall water level in the sealed water tank is lower than the ceramic overflow line, and the water level in the water tank is rapidly lowered in a short time when the flushing function is started, and at this time, the auxiliary pontoon 122 opens the air intake hole 121 of the water tank to intake air to the water tank, so that negative pressure is prevented from being formed in the sealed water tank. When the water level in the water tank is reset to the set water level and then the water inlet valve works abnormally and can not stop water inlet, the auxiliary pontoon 122 closes the air inlet hole 121, the water inlet valve continuously inlets water to change the pressure in the water tank from negative pressure to positive pressure, and at the moment, under the action of the positive pressure, more water in the water tank overflows into the ceramic closestool through the water dividing valve, so that a water seal is formed. The auxiliary pontoon 122 closes the air inlet hole 121 to form positive pressure in the water tank, thereby ensuring the normal work of the anti-siphon function of the water inlet valve. Specifically, the liquid in the water tank overflows into the ceramic closestool through the bottom flushing water outlet of the water diversion valve.

In this embodiment, the diverter valve 30 is sealingly connected to the tank cover 12 by a diverter valve seal ring. The direct-current variable-frequency water pump 20 is also in sealing connection with the tank body 11 through a water pump sealing ring, so that a sealed water tank controlled by the auxiliary pontoon 122 is formed.

The beneficial effects of this embodiment are: the direct-current variable-frequency water pump provides kinetic energy for the flushing system, so that water in the water tank flows into the ceramic closestool through the water dividing valve, after the flushing is finished, water is injected into the water tank through the water inlet system, and along with the rising of the water level, the auxiliary pontoon on the water tank cover rises to be abutted with the air inlet hole on the water tank cover along with the rising of the water level, so that a closed air cavity is formed in the water tank, and under the action of the air cavity, redundant water in the water tank can overflow into the ceramic closestool through the water dividing valve, so that the highest water level line in the water inlet system is higher than the water overflow line of the water tank and lower than the ceramic overflow line.

Further, the flushing system of the intelligent closestool further comprises a water inlet valve 40 for allowing water to enter the sealed water tank 10, wherein the water inlet valve 40 is arranged in the sealed water tank 10 and is sealed and fixed with the bottom of the tank 11 through a bottom nut of the water inlet valve 40. Wherein, a common water inlet mechanism is arranged in the water inlet valve 40 to control the water inlet of tap water into the sealed water tank 10 through the water inlet mechanism. The water inlet mechanism comprises a water inlet connected with the tap water pipe, a pontoon for controlling water inflow of the water inlet, and the like, and the water inlet mechanism is not limited herein.

In a further embodiment, the water tank cover 12 is further provided with a water inlet valve cover 41, the water inlet valve cover 41 is arranged corresponding to the water inlet valve 40, and is an opening cover for installing the water inlet valve 40 on the water tank cover 12, and the sealed water tank can be opened in a rotating mode, and the size of the sealed water tank is slightly larger than the diameter of the water inlet valve 40, so that the water inlet valve cover 41 can be conveniently placed into the water inlet valve 40 when the water inlet valve cover 41 is opened. Wherein the water inlet valve cover 41 is in sealing connection with the water tank cover 12 through a rotating structure.

Specifically, the direct-current variable-frequency water pump 20 is arranged corresponding to the lower section of the tank 11, that is, corresponding to the bottom of the tank 11, and is arranged outside the tank 11, so that the occupied space of the water tank is saved. Specifically, the water pump inlet 21 of the direct-current variable-frequency water pump 20 is in sealing connection with the side wall of the tank 11 through a water pump sealing ring, and the water pump outlet 22 is connected with the water diversion valve 30 positioned on the water tank cover 12 so as to pump water in the water tank into the ceramic toilet through the water diversion valve 30. Specifically, the direct-current variable-frequency water pump 20 is flexibly connected to the lower part of the sealed water tank through a fixing piece, and the flexible connection can reduce the shock conduction influence of the shock of the water pump on the external connection during working. The water outlet 22 of the direct-current variable-frequency water pump 20 is connected with a side wall conveying pipeline 221 integrally formed with the water tank so as to be conveyed to the shunt valve 30 through the side wall conveying pipeline 221 integrally formed with the water tank. When the flushing function is started, water in the tank is delivered to the diverter valve 30 by the water pump through the sidewall delivery conduit 221 on the tank. Wherein the sidewall transport pipe 221 may be a hose to reduce vibration. In a preferred embodiment, the dc variable frequency water pump 20 further comprises a water pump fixing bracket 23, the dc variable frequency water pump 20 is fixed by the water pump fixing bracket 23, specifically, the dc variable frequency water pump 20 is fixed on the ceramic toilet bowl by the water pump fixing bracket 23, and in other embodiments, the water pump fixing bracket 23 may not be provided, which is not limited herein.

In the present embodiment, the diverter valve 30 includes side-flush water outlets 31 and bottom-flush water outlets 32, and a diverter spool 33 that controls the opening and closing of the bottom-flush water outlets 32. The opening and closing of the side-flushing water outlet 31 is controlled by rotating the control water diversion valve core 33. The bottom flushing water outlet 32 is disposed on the water tank cover 12, the side flushing water outlet 31 is disposed on the water diversion valve cover, and the direction of the side flushing water outlet 31 is changed by the water diversion valve cover, which is not limited herein.

Further, the diverter valve 30 further includes a diverter valve shaft 331 disposed at the axial center of the diverter valve core 33, and a diverter valve motor 34 connected to the diverter valve shaft 331. Wherein, the water diversion valve motor 34 drives the water diversion valve rotating shaft 331 to rotate, and then drives the water diversion valve core 33 to rotate along with the water diversion valve rotating shaft 331, thereby realizing the opening and closing of the bottom flushing water outlet 32. In other embodiments, other devices may be used to control the opening and closing of the water distribution valve plate, which is not limited herein. Further, the diverter valve 30 further includes a diverter valve cover, and the diverter valve cover is disposed above the water outlet of the diverter valve 30, that is, disposed on a side of the diverter valve core 33 away from the tank 11, and is fixed and hermetically connected to the tank cover 12 through a fixing base, so as to fix components such as the diverter valve core 33 of the diverter valve and the diverter valve rotating shaft 331 on the tank cover 12. The water diversion valve motor 34 can be fixed on the surface of the water diversion valve cover far away from the water diversion valve core 33 and is connected with the water diversion valve rotating shaft 331 through a through hole on the water diversion valve cover, so that the water diversion valve is controlled to work; in other embodiments, the valve cover may be disposed on the lower surface of the water diversion valve cover, that is, inside the water diversion valve, and directly contact with the water diversion valve rotating shaft 331, which is not limited herein. The side water outlet 31 is disposed on the water diversion valve cover, and the low water outlet 32 is disposed on the water tank cover 12 at a position corresponding to the water diversion valve, but other arrangements are also possible, which is not limited herein.

The specific embodiment comprises the following steps: when flushing, in the initial stage, the water diversion valve plate controls the bottom flushing channel to be closed, and water conveyed by the water pump is conveyed to the side flushing nozzle through the side flushing water outlet of the water diversion valve to be sprayed into the ceramic toilet to form a vortex flushing effect; at this time, the water diversion valve plate is switched to the side flushing water outlet to be closed by half, the bottom flushing water outlet is completely opened, and the water conveyed by the water pump is conveyed to the bottom flushing nozzle through the water diversion valve bottom flushing water outlet to be sprayed into the ceramic to form a siphon spraying effect. When the water in the ceramic closestool is discharged through the siphon and the siphon is stopped, the water sprayed out by the side flushing nozzle is continuously supplemented and restored to the water seal, so that a complete flushing function is completed. The side water outlet 31 is further provided with a normally open one-way valve (not shown in the figure), and in the flushing process, the side water outlet 31 is in a normally open state so as to ensure the normal outflow of water flow. The check valve is arranged to ensure that the check valve aims to avoid the water backflow of the side flushing nozzle, and is not limited in this regard.

Further, the diverter valve 30 further comprises a diverter valve elbow 35, one end of the diverter valve elbow 35 is connected with the side-flush water outlet 31, the other end is connected with a side-flush nozzle 36, and liquid in the water tank is sprayed into the ceramic toilet through the side-flush nozzle 36. The side-flushing nozzle 36 is specifically disposed at a position above the side wall of the ceramic toilet, so as to form a vortex on the side wall of the ceramic toilet during flushing, thereby achieving the effect of flushing the side wall of the toilet.

A side-flushing air suction pipe 37 is further arranged between the water diversion valve elbow 35 and the side-flushing spray nozzle 36, and the water diversion valve elbow and the side-flushing spray nozzle are connected through the side-flushing air suction pipe 37. The side wall of the side flushing air suction pipe 37 is also provided with a self-priming tee joint 38, and the self-priming tee joint 38 comprises two water inlets and a water outlet. One of the water inlets is connected with an external waterway, the other water inlet is connected with foam liquid in a secondary liquid tank in the sealed water tank through a hose, and the water outlet is connected with a side flushing spray nozzle 36, and specifically, the water outlet coincides with a side flushing air suction pipe 37. Foam liquid is sucked up from the auxiliary liquid tank through the Venturi effect of the self-priming tee joint to be mixed with liquid in the side flushing air suction pipe. Wherein, box 11 includes the main liquid case of storing running water to and the vice liquid case of storage foam liquid, and wherein, vice liquid case and main liquid case do not communicate, alone and the interval sets up. The external waterway may be a tap water pipe or the like, and is not limited thereto. The side-flushing nozzle 36 is fixed at one end of the side-flushing air suction pipe 37 far away from the water diversion valve elbow 35 through a nozzle sealing ring and a fixing piece (comprising a threaded nut), and forms a seal. May be secured by other means, not limited herein.

In a preferred embodiment, the side-flushing air suction pipe 37 is further provided with a side-flushing flow sheet (not shown in the figure) at a position corresponding to the water outlet of the self-priming three-way pipe 38, and the side-flushing flow sheet is used for increasing the flow potential of the liquid flowing through the side-flushing air suction pipe 37, so as to accelerate the mixing of the foam liquid and the water.

The specific embodiment comprises the following steps: when the cleaning function is switched, foam liquid is sucked up from the auxiliary liquid tank by utilizing the venturi effect through the unique structure of the self-suction tee joint and then is transmitted to the side flushing spray head, at the moment, the water in the water tank is transmitted to the side flushing spray head through the side flushing water outlet of the water diversion valve, the rotation effect is increased through the side flushing turbulence piece by water flow, air in the side flushing spray cavity is sucked into the foam mixed liquid through the air hole of the side flushing suction pipe on the side flushing spray head through the venturi effect, and a large amount of foam is formed by mixing the foam mixed liquid with the water of the side flushing water outlet through the filter screen and the side flushing spray nozzle and is transmitted to the inside of ceramic, so that the splash-proof function is completed.

Specifically, the bottom flush outlet 32 of the diverter valve 30 is connected to a bottom flush nozzle 321 in the ceramic toilet through a pipe, and the bottom flush nozzle 321 is fixed to a bottom punch (not shown) of the ceramic toilet through a spout packing 322 and a fixing piece 323. Wherein, the bottom punching hole is arranged opposite to the sewage outlet of the ceramic closestool. Specifically, the fixing member 323 is a threaded nut; the bottom flushing nozzle 321 and the nozzle sealing ring 322 are screwed and fixed on a bottom punching hole of the ceramic closestool through threads of a bottom flushing nozzle nut, and water at a bottom flushing water outlet 32 of the water diversion valve 30 is sprayed to a sewage outlet of the ceramic elbow through the bottom flushing nozzle 321 to form siphon jet flushing.

The application further provides a smart toilet, and particularly referring to fig. 2, fig. 2 is an exploded view of an embodiment of the smart toilet. As shown in fig. 2, the intelligent toilet includes a ceramic toilet 50 and a flushing system connected to the ceramic toilet 50 through a pipe, wherein the flushing system is the flushing system of the intelligent toilet in any of the above embodiments. Wherein, the pipeline comprises a soft water pipe formed by resin. The ceramic toilet 50 is provided with a bottom punching hole and a side punching hole, the bottom punching hole is arranged at the bottom of the ceramic toilet and corresponds to the sewage outlet, and the side punching hole is arranged on the side wall of the ceramic toilet. The bottom punching and side punching are internally provided with spray heads sealed by sealing rings, the bottom punching spray heads are in sealing connection with bottom punching water outlets of a water diversion valve of a flushing system through soft water pipes, and the side punching spray heads are connected with side punching water outlets of the water diversion valve through bent pipes, and the structural arrangement in the flushing system is specifically referred to and is not repeated herein. Wherein, intelligent closestool still includes the ring flange 51 that sets up in ceramic closestool 50 bottom for the discharge sewage.

The beneficial effects of this application are: in contrast to the prior art, the water storage structure in this application is sealed water tank, controls the positive and negative of the pressure in the sealed water tank through controlling opening and shutting of the inlet port on the water tank lid to avoid the water level in the water tank to appear the suck-back phenomenon when being less than the ceramic water spilling line. And further solves the technical problem that the overflow water level of the traditional zero-water-pressure water tank is higher than the minimum overflow water level of the ceramic, and also solves the problem that the water tank-free closestool has the minimum water inlet pressure requirement.

The foregoing is only the embodiments of the present application, and not the patent scope of the present application is limited by the foregoing description, but all equivalent structures or equivalent processes using the contents of the present application and the accompanying drawings, or directly or indirectly applied to other related technical fields, which are included in the patent protection scope of the present application.

Claims (10)

1. A flush system for a smart toilet, comprising:

the sealed water tank comprises a tank body and a water tank cover which is connected with the tank body in a sealing way through a sealing ring, and liquid is stored in the tank body;

the direct-current variable-frequency water pump comprises a water pump water inlet and a water pump water outlet, wherein the water pump water inlet extends into liquid in the tank body so as to pump out the liquid in the water tank;

the water diversion valve is arranged on the water tank cover and is connected with a water pump water outlet of the direct-current variable-frequency water pump so as to control the outflow direction of the liquid;

the water tank cover is also provided with an air inlet hole and a secondary pontoon which is arranged corresponding to the air inlet hole, the secondary pontoon moves towards the air inlet hole under the action of rising water level, and closes the air inlet hole after the water level rises to a set water level, so as to form a closed air cavity, and further ensure that the anti-siphon function of the water inlet valve can work normally.

2. The intelligent toilet flushing system of claim 1, further comprising a fill valve controlling the fill of the sealed tank, the fill valve being fixedly connected to the bottom of the sealed tank by a bottom thread.

3. The intelligent toilet flushing system of claim 1, wherein the direct current variable frequency water pump is arranged corresponding to the lower portion of the tank body, a water pump water inlet of the direct current variable frequency water pump is connected with the side wall of the tank body in a sealing manner through a water pump sealing ring, and a water pump water outlet is connected with a water diversion valve arranged on the water tank cover so as to pump water in the sealed water tank into the ceramic toilet through the water diversion valve.

4. The intelligent toilet bowl flushing system of claim 3 wherein the diverter valve includes side and bottom flush outlets and a diverter valve spool controlling the opening and closing of the bottom flush outlets, the diverter valve spool controlling the opening and closing of the side and bottom flush outlets.

5. The intelligent toilet flushing system of claim 4, wherein the diverter valve comprises a diverter valve spindle disposed on the diverter valve spindle core and a diverter valve motor connected to the diverter valve spindle, and the diverter valve motor drives the diverter valve spindle to rotate by driving the diverter valve spindle to drive the diverter valve core to rotate so as to open and close the bottom flushing water outlet.

6. The intelligent toilet bowl flush system of claim 5, wherein the diverter valve comprises a diverter valve elbow having one end connected to the side flush outlet and the other end connected to the side flush head.

7. The intelligent toilet bowl flushing system of claim 6, wherein a side flush suction pipe is further disposed between the diverter valve elbow and the side flush nozzle, a self-priming tee is further disposed on a side wall of the side flush suction pipe, the self-priming tee includes two water inlets and one water outlet, one of the water inlets is connected with an external waterway, the other water inlet is connected with foam liquid in a secondary liquid tank in the sealed water tank through a hose, and the water outlet is connected with the side flush nozzle so as to suck foam liquid from the secondary liquid tank through a venturi effect of the self-priming tee to mix with liquid in the side flush suction pipe.

8. The intelligent toilet bowl flushing system of claim 7, wherein a side flush air suction duct is further provided therein to increase the flow potential of water flowing through the side flush air suction duct.

9. The intelligent toilet bowl flushing system of claim 4 wherein the low flush outlet of the diverter valve is connected by tubing to an undershoot nozzle within the ceramic toilet bowl that is secured to an undershoot hole of the ceramic toilet bowl by a securing member; wherein, the bottom punching hole is arranged opposite to the sewage outlet of the ceramic closestool.

10. A smart toilet, characterized in that the smart toilet comprises a ceramic toilet and a flushing system connected with the ceramic toilet through a pipeline, wherein the flushing system is the flushing system of the smart toilet according to any one of claims 1 to 9.