WO2024066629A1

WO2024066629A1 - Toilet device, flushing system and flushing method therefor

Info

Publication number: WO2024066629A1
Application number: PCT/CN2023/105275
Authority: WO
Inventors: 林孝发; 林孝山; 里克特托马斯; 赫尔德克劳斯·迈克尔; 黄新迪
Original assignee: 九牧厨卫德国有限公司; 林孝发
Priority date: 2022-09-29
Filing date: 2023-06-30
Publication date: 2024-04-04
Also published as: CN115404957A

Abstract

A toilet device (100), a flushing system (2) and a flushing method therefor. A control device (24) for the flushing system (2) controls the opening and closing of and opening and closing time of a first spray washing pipe (21) and a second spray washing pipe (22), and the emptying sequence of a toilet bowl (10), so as to form a plurality of flushing modes.

Description

A toilet device, flushing system and flushing method thereof

Technical Field

The present invention relates to but is not limited to the sanitary ware field, and in particular to but is not limited to a toilet device, a flushing system and a flushing method thereof.

Background technique

Flush toilets are a major contributor to a clean and healthy environment, but a major drawback of flush toilets is their long-term water consumption. In the context of limited water resources and water supply disruptions caused by droughts or floods, better water conservation capabilities of flush toilets are urgently needed.

Better water conservation in flush toilets is urgent both in developing and developed countries, where industrial water use competes with agricultural water and the need for cleaning and personal water. It is well known that wastewater treatment requires both high investments in infrastructure and the treatment process is costly and in many cases difficult to build infrastructure for sewer systems and treatment plants.

The volume of water required to flush a toilet for solids and liquids is usually about 6 litres per flush. In some cases, two different flush volumes are used to flush the toilet, one for solids and faeces (full flush) and one for the flush after the user urinates, i.e. a half flush (or economy flush). This means that when a user urinates in the toilet, 3 litres of water are removed with each flush. Flushing toilets is expensive, both because the wastewater after flushing needs to be treated and because of the investment in sewer infrastructure, which has operating and maintenance costs that make cleaning the sewers expensive.

As the availability of potable water is limited, the industry is developing new technologies to reduce flushing volumes or use non-potable water for flushing.

In some cases, one flushing technology is used in vacuum toilets, such as those used in transportation systems such as trains and airplanes. On the ground, the high investment in creating the vacuum and the high energy required to operate the system have so far prevented the widespread use of these systems on the ground.

There are also new developments in mechanical "flushing", but the investment is high and cleanliness depends on regular maintenance. Because the mode of operation is different from flush toilets, user acceptance is low. These technologies also have the risk of occasional failure of the odor barrier.

Another flushing technology is used in leisure shipping as "marine toilets". They also have a low flush volume, but are much more difficult to use, for example: before using the toilet, the toilet bowl must be filled with water, which must be assessed by the user and the water needs to change from low to high fill volume when urinating to defecating. After use, the user must refill the reservoir by pressing three buttons. The disadvantage of this system is that it relies on the user to operate correctly and correctly judge the timing of all steps in the correct sequence. This means that each process is time-controlled and can only be carried out continuously when the button is pressed. Another disadvantage is that users are accustomed to operating the system up to two flushes after use instead of before and after use.

SUMMARY OF THE INVENTION

The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

The disclosed embodiment provides a flushing system, comprising a first spray flushing pipeline and a second spray flushing pipeline, both of which are configured to be connected to a toilet bowl and supply water to flush the toilet bowl;

an on-off assembly connected to the first spray pipeline and the second spray pipeline and configured to control the on-off of the first spray pipeline and the second spray pipeline;

a control device electrically connected to the on-off assembly, the control device being configured to control the opening and closing of the first spray line and the second spray line, and the sequence between the opening and closing of the first spray line and the second spray line and the emptying of the toilet bowl, so as to form a plurality of flushing modes;

The plurality of flushing modes include at least one of a first flushing mode and a second flushing mode, and further include a third flushing mode;

The first flushing mode is configured to open the first spray pipeline or the second spray pipeline after the toilet bowl is completely emptied; the second flushing mode is configured to open the first spray pipeline before the toilet bowl starts to empty, and open the first spray pipeline or the second spray pipeline after the toilet bowl is completely emptied; the third flushing mode is configured to open the first spray pipeline and the second spray pipeline before the toilet bowl starts to empty, and open the first spray pipeline or the second spray pipeline after the toilet bowl is completely emptied.

The embodiment of the present disclosure also provides a toilet device, comprising: a toilet body, and a flushing system as described in any embodiment of the present disclosure installed in cooperation with the toilet body;

The toilet body comprises a toilet bowl, and the toilet bowl is provided with a first spray port and a second spray port; the first spray pipe and the second spray pipe of the flushing system are respectively installed in cooperation with the first spray port and the second spray port.

The present disclosure also provides a flushing method for a flushing system, wherein flushing is performed using the flushing system of any embodiment of the present disclosure, and the flushing method includes:

According to different flushing commands received, controlling the flushing system to be in any one of a plurality of flushing modes;

When the flushing system is in the first flushing mode, the first spraying pipeline or the second spraying pipeline is opened after the toilet bowl is emptied;

When the flushing system is in the second flushing mode, the first spraying pipeline is opened before the toilet bowl starts to empty, and the first spraying pipeline or the second spraying pipeline is opened after the toilet bowl is emptied;

When the flushing system is in the third flushing mode, the first spray line and the second spray line are opened before the toilet bowl starts to empty, and the first spray line or the second spray line is opened after the toilet bowl is emptied.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings are used to provide further understanding of the technical solution of this article and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the technical solution of this article and do not constitute a limitation to the technical solution of this article.

FIG1 is a schematic diagram of a toilet device according to an embodiment of the present disclosure;

FIG2 is a schematic diagram of a toilet body of the toilet device of FIG1 ;

FIG3 is a schematic top view of the toilet body of FIG2 ;

FIG4 is a schematic diagram of another implementation of the toilet body of the toilet device of the embodiment of the present disclosure;

FIG5 is a schematic diagram of an integrated installation of a flushing system of a toilet device according to an embodiment of the present disclosure;

FIG6 is a schematic diagram of the internal structure of the flushing system of the toilet device according to the embodiment of the present disclosure after integrated installation;

FIG. 7 is a flow chart of a flushing method of a flushing system according to an embodiment of the present disclosure.

Reference numerals:
100: toilet device, 1: toilet body, 10: toilet bowl, 11: base, 101: first spray port, 102: second spray port, 103: sewage outlet, 1a: front end, 1b: rear end, 104: arc front part, 105: arc rear slope part, 106: water sealing area, 105: rear slope part, 12: suction device, 13: backflow prevention device, 14: flange connector, 130: magnetic element; 2: flushing system, 21: first spray pipeline, 22: second spray pipeline, 23: on-off assembly, 24: control device, 210: first nozzle, 2101: horizontal section, 2102: bending section, 220: second nozzle, 25: pressurizing device, 23a: first electric control valve, 23b: second electric control valve, 28: tank body, D: box body, 26: first liquid level sensor, 27: second liquid level sensor.

Details

The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

In addition, the technical solutions between different embodiments of the present disclosure may be combined with each other, but this must be based on the fact that ordinary technicians in the field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present disclosure.

In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features.

In the description of the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be a detachable connection, or it can be an integral connection; it can be a mechanical connection, or it can be an electrical connection, or it can be mutual communication; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements, or it can be the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

In the present disclosure, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

Many different embodiments or examples are provided below to implement different structures of the present disclosure. In order to simplify the disclosure of the present disclosure, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present disclosure. In addition, the present disclosure may repeat reference numbers and/or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and/or settings discussed. In addition, the present disclosure provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and/or the use of other materials.

As shown in FIGS. 1-6 , an embodiment of the present disclosure provides a toilet device 100 that can be used for a suction-type smart toilet, which can be a sitting type or a squatting type.

As shown in Fig. 1, this embodiment is described in detail with a sitting toilet device 100. The toilet device 100 includes a toilet body 1 and a flushing system 2 installed in cooperation with the toilet body 1.

As shown in Figures 2 and 3, the toilet body 1 includes a toilet bowl 10 and a base 11. The toilet bowl 10 is provided with a first spray port 101, a second spray port 102 and a sewage outlet 103. The first spray port 101 and the second spray port 102 are connected to the flushing system 2 through a pipeline, and are both used to clean the toilet body 1. The port 103 is used to connect to a drainage system to discharge clean excrement in the toilet bowl 10 .

The toilet body 1 includes a front end 1a and a rear end 1b opposite to the front end 1a, and the rear end 1b can be arranged corresponding to the installation surface of the wall. Along the front-to-back direction of the toilet body 1, the first spray port 101 is arranged at the front of the toilet bowl 10, and the second spray port 102 is arranged behind the first spray port 101. Along the height direction of the toilet body 1, the first spray port 101 and the second spray port 102 are both located at the upper part of the toilet bowl 11.

In an exemplary embodiment, the first spray port 101 includes multiple and is arranged along the circumference of the toilet bowl 10; the second spray port 102 includes multiple and is arranged along the circumference of the toilet bowl 10, and the multiple second spray ports 102 can be arranged on the left and right sides, thereby achieving a better flushing effect.

The toilet bowl 10 has an arc-shaped front portion 104, an arc-shaped rear slope portion 105 with an inclined design, and a water sealing area 106 located at the bottom. The arc-shaped front portion 104 and the inclined rear slope portion 105 form a main chamber extending from top to bottom. The shape of the arc-shaped front portion 104 provides space for receiving urine, and the rear slope portion 105 gradually tilts forward from top to bottom along the height direction of the toilet body 1 to prevent the rear slope portion 105 from contacting solid excrement during defecation. The water sealing area 106 is arranged at the lower part of the main chamber and extends to the rear or side of the toilet bowl 10. The sewage outlet 103 is arranged at the rear or side of the toilet bowl 10 and communicates with the water sealing area 106. The water sealing area 106 has a horizontal columnar storage space that can store a certain amount of water, prevent the suction device 12 from contacting the solid excrement in the toilet bowl 10, and prevent the solid excrement from adhering to the porcelain surface of the toilet bowl 10. The water stored in the toilet bowl 10 fills the water sealing area 106 and fills the lower part of the main chamber, so that the water can contact the lower part of the rear slope 105 of the toilet bowl 10. When flushing, the rising part of the liquid surface significantly raises the water level in the main chamber. The inclined design of the rear slope 105 can help to gather liquid and paper. The structural design of the toilet bowl 10 of the disclosed embodiment can significantly raise the water level, gather excrement, and prevent solid excrement from sticking to the inner wall of the toilet bowl 10 during the sewage discharge process.

The design of the toilet bowl 10 of the disclosed embodiment reduces the need for higher hydraulic power (flow and pressure), and the upper toilet paper on the slightly descending slope (front slope) can be flushed away only by the force of the flushing water flow. In addition, the amount of water stored in the toilet bowl 10 exceeds the water sealing area 14 and reaches the main chamber, so that it can have a higher storage water level. When flushing, the water level in the main chamber rises faster, making it easier to flush away excrement.

As shown in Figures 1 and 2, the toilet device 100 further includes a suction device 12, which is installed in conjunction with the sewage outlet 103 to generate negative pressure to discharge excrement in the toilet bowl 10. The suction device 12 of this embodiment can be an immersion pump, or, in other embodiments, a vacuum pump can be used.

As shown in FIG. 2 , the toilet device 100 further includes a backflow prevention device 13 disposed at the outlet of the suction device 12, which is a backflow prevention valve used in this embodiment. The suction device 12 is installed in conjunction with the sewage outlet 103 of the toilet body 1 through a flange connector 14, and the flange connector 14 integrates an O-ring and a connecting screw (not shown) fixed to the ground. The suction device 12 can not only suck liquids and solids, but also process solid excrement and toilet paper, stirring and crushing them.

In this embodiment, the anti-backflow valve 13 is installed or reinforced at the outlet of the suction device 13 by a magnetic element 130. When the suction device 12 is working, the anti-backflow valve 13 is automatically opened under the push of the sucked object; after the suction device 13 stops, the anti-backflow valve 13 is automatically closed to seal the toilet bowl 10 with the sewer. The anti-backflow valve 13 is provided with a closing device (not shown), so the water level rise in the toilet bowl 10 will not open the anti-backflow valve 13, and the high pressure generated when the suction device 12 is working is required to open the anti-backflow valve 13. The magnetic element 130 is fixed at a predetermined height, and the anti-backflow valve 13 will be opened only when the toilet bowl 10 reaches a predetermined water pressure, or the discharge system forces it to open. The force of the suction device 12 is higher than the resistance to open the anti-backflow valve 13, and when the suction device 12 is not working, the excrement is prevented from flowing out. The working time of the suction device 12 is set according to the time of emptying the toilet.

In another embodiment, the magnetic element 130 of the anti-reflux valve 13 will open the anti-reflux valve 13 through an opening circuit of a control device 24 (the control device 24 of the flushing system 2 described below).

As shown in FIG4 , the toilet body 1 of the embodiment of the present disclosure can be a split type, including a main body and a base, and the main body and the base can be assembled with each other. The figure is a schematic diagram of the base part, and the main body part can refer to the upper half of FIG2 . In the split toilet body 1, the suction device 12 can be set in the base, and the base F can cooperate with the main body E of the sitting toilet, or can cooperate with the main body of the squatting toilet, so that the base F can be adapted to the sitting toilet or the squatting toilet.

As shown in FIG1 , the flushing system 2 includes a first spraying pipeline 21, a second spraying pipeline 22, an on-off assembly 23 connected to the first spraying pipeline 21 and the second spraying pipeline 22, and a control device 24 electrically connected to the on-off assembly 23 and controlling the opening and closing of the on-off assembly 23. The first spraying pipeline 21 is installed in conjunction with the first spraying port 101 of the toilet body 1, and the second spraying pipeline 22 is installed in conjunction with the second spraying port 102.

As shown in FIG2 , the outlet end of the first spray pipe 21 is provided with a first nozzle 210, which is located at the front end of the toilet bowl 10 and can flush toilet paper thrown in by the user. The first nozzle 210 is installed in conjunction with the first spray port 101. As shown in the figure, the water sprayed by the first nozzle 210 descends slightly along the toilet bowl 10. The curve at the front end enters the horizontal columnar storage space of the water sealing area 106. The first nozzle 101 has a horizontal section 2101 and a bent section 2102 bent into the toilet bowl 10. The horizontal section 2101 guides the sprayed water flow to be horizontally transported to a position close to the front wall surface, and the bent section 2102 sprays the water flow to the inner wall surface of the toilet bowl 10, which can effectively clean the dirt stuck on the inner wall surface of the toilet bowl 10. The water outlet end of the second spray pipe 22 is provided with a second nozzle 220. The second nozzle 220 is located on the side or back (rear side) of the toilet bowl 10 and is installed in conjunction with the second spray port 102 to clean the inner wall of the rear of the toilet bowl 10 and clean the excrement that the inner wall of the rear contacts.

To improve the cleaning effect, the first nozzle 210 and the second nozzle 220 can spray water alternately, from left to right, or pulse flushing, etc. According to the available water supply pressure and flow rate, the first nozzle 210 and the second nozzle 220 are set to be interchangeable, and the spray angle and spray direction of the first nozzle 210 and the second nozzle 220 to the cylinder wall are set to be variable.

As shown in Figures 2 and 3, the second nozzle 220 has an angle of about 10 degrees with respect to the backward spray coverage range, and a forward spray coverage range of about 45 degrees, which can be specifically set according to actual conditions. The first nozzle 210 and the second nozzle 220 may include a threaded interface provided with a sealing ring so as to connect it to the first spray pipe 21 and the second spray pipe 22. The first nozzle 210 and the second nozzle 220 may be in various shapes such as round and flat. The first nozzle 210 can completely clean the inner wall of the front part of the toilet bowl 10. The angle of the second nozzle 220 is set so that the flushing range is sufficient to cover the entire toilet bowl 10.

In order to improve the performance of the cleaning nozzle, the first nozzle 210 and the second nozzle 220 are not fixed on the inner wall of the toilet bowl 10, but are located below the upper edge of the toilet bowl 10, a short distance away from the inner wall. The spray does not flow parallel to the inner wall, but forms a certain angle with the inner wall. The angle change increases the range of spray coverage, thereby improving the cleaning effect of the system.

The main purpose of the first nozzle 210 is to flush solid objects such as toilet paper that are thrown in by the user after cleaning with paper after urinating. The first nozzle 210 enters the part of the water sealing area 106 along the curve of the slightly descending front end of the toilet bowl. The direction of the first nozzle 210 guides the sprayed water flow to be inclined toward the front wall surface of the toilet bowl 10. The second nozzle 220 mainly cleans the inner wall of the rear part of the toilet bowl 10 because it may come into contact with sticky particles. In order to improve the cleaning effect, the second nozzles 220 on both sides are operated alternately, either from left to right, or pulse flushing.

In this embodiment, the on-off assembly 23 adopts an electric control valve, and the first spraying pipeline 21 and the second spraying pipeline 22 are respectively provided with an electric control valve: the first electric control valve 23a and the second electric control valve In other embodiments, the first spraying pipeline 21 and the second spraying pipeline 22 may also use an integrated electric control valve, which is not limited here.

As shown in FIG1 , the flushing system 2 also includes a pressurizing device provided in the first spraying pipeline 21 and the second spraying pipeline 22, which is used to pressurize the spraying water of the first spraying pipeline 21 and the second spraying pipeline 22 to provide a better flushing effect. The figure shows an example of three water supply methods provided by three waterways A, E, and C, any of which can supply water to the first spraying pipeline 21 and the second spraying pipeline 22. Waterway A uses a pressurized water tank (such as a gravity flushing water tank 25) for water supply, waterway B uses a booster pump for water supply, and waterway C uses a booster pump and a tank 28 containing a gas-liquid mixture at a certain pressure for water supply. The three water supply waterways can be selected to supply water individually, or they can be combined to supply water, which is not limited here.

When the pressure-increasing device adopts a gravity flushing water tank 25, the water inlet ends of the first spraying pipe 21 and the second spraying pipe 22 are connected to the gravity flushing water tank 25. The gravity flushing water tank 25 is suspended at a certain height compared to the toilet body 10, so that the pressure is provided only by the gravity of the water in the water tank 25.

When the pressurizing device adopts the booster pump 29 , the booster pump directly pressurizes the water in the first spraying pipeline 21 and the second spraying pipeline 22 .

As shown in FIG1 , the control device 24 includes a control unit (not shown), an operation panel electrically connected to the control unit, and operation buttons (e.g., F, M, S, B as shown in FIG1 ) are arranged on the operation panel. The operation button can be a physical key, or a touch key, and can be designed as a piezoelectric switch, or can be designed as a micro switch integrated in the panel. The operation panel can be placed above the toilet body 1, and the switch is connected to a control unit with a control program to parameterize different flushing programs. The control device 24 can also be displayed on the terminal through a user interface, which can be a user interface of a seat-type or squat toilet.

As shown in FIG. 7 , in this embodiment, the control device 24 controls the opening and closing of the electric control valves 23a and 23b and the emptying (draining) sequence of the toilet bowl according to different flushing command signals received to form a variety of flushing modes. In different flushing modes, the flushing system 2 sets the time sequence of flushing, emptying and refilling the toilet bowl, so that the water in the toilet bowl reaches different horizontal positions to maintain a suitable solid-liquid ratio and achieve effective flushing. In the disclosed embodiment, the emptying of the toilet bowl is achieved by the suction device 12.

In some cases, toilets use two flush modes: one for solids (such as feces) and one for liquids (such as urine). The liquid flush usually contains only half the volume of the solid flush, usually between 2.5 and 3 liters per flush for male and female users. The EN 997 standard stipulates that the water volume for one flush is approximately 6 liters, and the US HET standard is 4.8 liters per flush.

As we all know, male and female users have different practices after urinating. Those who do not use toilet paper after urinating are usually male users; those who use toilet paper after urinating are usually female users. Since male users flush directly after each urination, female users need toilet paper after urinating, which means that female users need more water to flush the toilet paper in the toilet. Compared with female users, male users save about 50% of water when flushing urine, because there is no need to use water to flush toilet paper, and the flushing water only needs to rinse the ceramic surface and refill the siphon.

Therefore, the toilet device 100 of the embodiment of the present disclosure divides liquid flushing into two flushing modes. The first flushing mode is suitable for paperless liquid flushing for men; and the second flushing mode is suitable for paper-based liquid flushing for women.

The first flushing mode is suitable for men's paperless liquid flushing, and the operation method is as follows:

After using the toilet, the user presses a male flushing operation button (e.g., the button may be indicated by a symbol M) to trigger a first flushing command (e.g., a low-voltage pulse signal). The control device 24 of the flushing system receives the first flushing command, starts the suction device 12 to suck out the excrement, and the anti-backflow valve 13 automatically opens. When the suction device 12 stops after the first predetermined emptying time, the anti-backflow valve 13 closes to prevent water from the sewer from flowing back to the water seal area 106 of the toilet.

When the suction device 12 stops the second predetermined emptying time, the first electric control valve 23a is opened, the first spray pipe 21 delivers water, and the first nozzle 210 of the first spray pipe 21 discharges water to wet the front of the toilet bowl 10 for cleaning, and replenish the water volume of the water sealing area 106. The required flushing volume is about 200 ml until the first predetermined liquid level L1 (see the corresponding dotted line position in Figure 2) is reached to cover the water sealing area 106, thereby covering the part of the suction device 12 that contacts the excrement. Alternatively, the water volume of the water sealing area 106 can be replenished through the second spray pipe 22. Similarly, the following multiple flushing modes can replenish the water sealing area 106 through the second spray pipe 22, which is not limited here.

The liquid level of the toilet body 1 can be estimated by the opening time of the first electric control valve 23a, or can be detected by setting a liquid level sensor in the toilet body 1, which is not limited here.

The specific control method of the first flushing mode can be referred to Table 1, where X represents the time variable and s represents seconds. The corresponding time can be set through the software. This table is a typical flushing program logic Set up the diagram.

Table I

When the toilet is ready to be used, the water level in the toilet bowl is initially at the basic level L1. After the user uses the toilet, the water level rises to LM. The user presses the flush button to directly suction and empty the toilet. After a short period of time, the toilet flushes and fills the water level to L1. The main purpose of setting the stop time is that the filling process can only start after the process of sucking away the excrement is completely completed. There needs to be a short gap in the middle, otherwise the suction pump does not know when to stop.

The first flushing mode is configured to open the first spraying pipeline 21 or the second spraying pipeline 22 after the toilet bowl 10 is completely emptied, so as to achieve less water consumption.

When in the first flushing mode, the control device 24 is configured to control the first spray pipeline 21 or the second spray pipeline 22 to open after the toilet bowl 10 is emptied, and to close the first spray pipeline 21 or the second spray pipeline 22 when the water in the toilet bowl 10 reaches the first predetermined liquid level L1.

The second flushing mode is suitable for women's paper liquid flushing. The specific operation method is as follows:

Since female users use toilet paper after urinating, these papers are likely to be thrown in the front part of the toilet bowl 10, so the flushing water volume must be able to flush these pieces of paper to the water-containing part of the toilet before they can be discharged. After using the toilet, the user presses a female flushing operation button (the button can be indicated by a symbol F) to trigger a second flushing command (a low-voltage pulse signal).

The control device 24 receives the second flushing command, controls the first electric control valve 23a to open the first spraying pipeline 21, and the water flows out from the first nozzle 210, about 400 ml. The first nozzle 210 is installed at the front of the toilet bowl 10, close to the front wall of the toilet, so that the toilet paper enters the lower part of the toilet bowl 10 from the front of the toilet bowl 10, so as to flush the toilet paper to the water sealing area of the toilet bowl 10, and the water level rises to the second predetermined liquid level L2, and the paper in the toilet bowl 10 can float on the water surface, and the water level in the toilet bowl 10 is higher than the toilet bowl 10 is the lower end position of the rear slope portion 105.

When the water level rises to the second predetermined liquid level L2 (see the corresponding dotted line position in FIG. 2 ), the control device 24 controls the suction device 12 to start, and the suction device 12 sucks out the liquid with floating toilet paper. The suction device 12 stops working after the third predetermined emptying time, and the control device 24 controls the first electric control valve 23a to close after the suction device 12 starts and before it ends. The suction device 12 and the first spraying pipeline 21 work simultaneously for a period of time.

After the water in the toilet bowl 10 is emptied, the suction device 12 stops, and the control device 24 controls the first electric control valve 23a to open again to open the first spray pipeline 21 until the water level in the water sealing area 106 reaches the first predetermined liquid level L1, about 200 ml of water, to cover the parts of the suction device 12 in contact with the excrement, and the anti-backflow valve 13 is closed to prevent the gas from the waste water pipe from entering. The specific control process can be referred to Table 2.

Table II

When you are ready to use the toilet, the initial basic water level in the toilet bowl is L1. After the user uses the toilet, the water level rises to LF. The user presses the flush button to flush, and the water level rises to L2. It is then pumped and emptied, and after a short while the toilet is flushed and filled to L1.

The second flushing mode control device is configured to open the first spray pipe 21 before the toilet bowl 10 starts to be emptied, and open the first spray pipe 21 or the second spray pipe 22 after the toilet bowl 10 is completely emptied, so as to clean the toilet bowl 10 according to the urination habits of women.

Before the toilet bowl 10 starts to empty, the first spraying pipeline 21 is controlled to be opened, and when the water in the toilet bowl 10 reaches a second predetermined liquid level, the first spraying pipeline 21 is closed;

After the toilet bowl 10 is emptied, the first spraying pipeline 21 or the second spraying pipeline 22 is controlled to be opened. And when the water in the toilet bowl 10 reaches the first predetermined liquid level L1, the first spraying pipeline 21 or the second spraying pipeline 22 is closed. Water usage analysis of the second flushing mode: about 400 ml of water is used to flush the paper, about 200 ml of water is used to refill the bottom of the toilet bowl, and the total amount of emptying is about 800 ml (including about 200 ml of urine).

The toilet device 100 of the disclosed embodiment is also provided with a third flushing mode: suitable for use by men or women after they discharge solid feces.

The third flushing mode needs to achieve two goals. The first is to discharge the solid excrement into an emulsion. In this case, more water needs to be added to the toilet bowl 10 to dilute the solids. Therefore, the flushing water volume is higher than that of the second flushing mode. The suction device 12 needs to be started at the third predetermined liquid level L3 (see the corresponding dotted line position in Figure 2); the second is to clean the stains on the toilet bowl 10. The specific operation method is as follows:

After using the toilet, the user presses a solid (feces) flush button with a pressurized function (the button may be indicated by a symbol S) to trigger a third flush command.

The control device 24 receives the third flushing command, controls the first electric control valve 23a and the second electric control valve 23b to open the first spray pipe 21 and the second spray pipe 22, and closes after the first predetermined flushing time. Water flows from the first nozzle 210 of the first spray pipe 21 and the second nozzle 220 of the second spray pipe 22 to the wall of the toilet bowl 10 until the water flow increases to the third predetermined liquid level L3 where the solid is partially covered by the flushing water and the toilet paper can float.

When the water is still flushing in, the suction device 12 starts to suck the excrement in the toilet bowl, and stops after the fourth predetermined emptying time. The opening time of the first spraying pipeline 21 and the second spraying pipeline 22 when the suction device 12 is working is defined as the first predetermined duration. The first spraying pipeline 21 and the second spraying pipeline 22 stop before the suction device 12 stops, and the purpose is to completely suck out the excrement in the toilet bowl 10.

After the suction device 12 stops suctioning, the first spraying pipeline 21 is opened to fill water into the toilet bowl 10, and the water rises to the first predetermined liquid level L1 again. The specific control method can be referred to Table 3.

Table 3

When you are ready to use the toilet, the initial basic water level in the toilet bowl is L1. After the user uses the toilet, the water level rises to Ls. The user presses the flush button, the two nozzles flush, the water level rises to L3, and then suction and empty it. When emptying, the two nozzles flush for a period of time. After a short time after emptying, the toilet bowl is flushed and filled to the water level L1.

The third flushing mode is configured to open the first spray pipe 21 and the second spray pipe 22 before the toilet bowl 10 starts to be emptied, and to open the first spray pipe 21 or the second spray pipe 22 after the toilet bowl 10 is completely emptied, so as to achieve a higher cleaning effect.

When in the third flushing mode, the control device 24 is configured to:

Before the toilet bowl 10 starts to be emptied, the first spraying pipeline 21 and the second spraying pipeline 22 are controlled to open for a first predetermined flushing time so that the liquid level of the toilet bowl 10 reaches a third predetermined liquid level, which is greater than the second predetermined liquid level;

When the toilet bowl 10 is empty, the first spray line 21 and the second spray line 22 continue to be opened for a first predetermined duration;

Before the toilet bowl 10 is completely emptied, the first spraying pipeline 21 and the second spraying pipeline 22 are closed;

When the toilet bowl 10 is emptied, the first spray line 21 or the second spray line 22 is controlled to be opened, and when the water in the toilet bowl 10 reaches the first predetermined liquid level, the first spray line 21 or the second spray line 22 is closed. Analysis of water consumption in the third flushing mode: about 600 ml is used to clean the bowl wall and flush paper, and about 200 ml is used to replenish the water seal of the toilet bowl and clean the front of the toilet bowl. The input of solid excrement and liquid excrement is about 350 ml. The filled water (about 200 ml) is left in the lower part of the toilet bowl for next use. The total volume to be processed is about 950 ml of liquid (the excrement contains about 80% liquid).

The toilet device 100 of the embodiment of the present disclosure is also provided with a fourth flushing mode: pressurized flushing suitable for private residences or commercial or public applications.

The fourth flushing mode can be an additional function of the third flushing mode. The difference is that when the fourth flushing mode is turned on, the opening time of the first electric control valve 23a and the second electric control valve 23b is extended by about 30%, thereby increasing the flushing volume, and the opening time of the suction device 12 is also relatively extended.

The opening time of the first electric control valve 23a and the second electric control valve 23b is defined as the first predetermined flushing time. The opening time of the first spraying pipeline 21 and the second spraying pipeline 22 when the suction device 12 is working is defined as the second predetermined duration, which is greater than the first predetermined duration of the third flushing mode.

The start time of the suction device 12 is defined as the fifth predetermined emptying time, and the fifth predetermined emptying time is greater than the fourth predetermined emptying time. The suction device 12 is started when the liquid level reaches the third predetermined liquid level L3. The time when the liquid level reaches the third predetermined liquid level L3 can be calculated based on the opening time of the first electric control valve 23a and the second electric control valve 23b, or can be detected based on the liquid level sensor, which is not limited here.

When in the fourth flushing mode, the control device 24 is configured to: before the toilet bowl 10 starts to be emptied, control the first spray pipe 21 and the second spray pipe 22 to open for a first predetermined flushing time so that the liquid level in the toilet bowl 10 reaches a third predetermined liquid level;

When the toilet bowl 10 is empty, the first spray line 21 and the second spray line 22 continue to be opened for a second predetermined duration, the second predetermined duration being greater than the first predetermined duration;

When the toilet bowl 10 is emptied, the first spray pipe 21 or the second spray pipe 22 is controlled to be opened, and when the water in the toilet bowl 10 reaches the first predetermined liquid level, the first spray pipe 21 or the second spray pipe 22 is closed. In addition, the fourth flushing command corresponding to the fourth flushing mode is triggered by the user pressing a flushing button with a pressurized flushing (the button may be indicated by a symbol B). The remaining operation steps of the fourth flushing mode can refer to the third flushing mode and are not repeated here.

In order to avoid the danger of water capacity exhaustion due to excessive use, the flushing system is provided with a reminder function. The first reminder method: a first sensor 26 electrically connected to the control device 24 is provided in the water tank 25 to detect the water level. When the water level of the water tank 25 does not match the water consumption curve, an indicator light is used to remind. The control device 24 pre-stores the water consumption curve, and collects and calculates the water consumption data of the water tank 25 to determine whether it matches. If it does not match, an indicator light is used to remind. The second reminder method: the water level corresponding to the flush button B in the toilet bowl where pressurized flushing is recommended can be marked, and the indicator light can be used to remind the user. The flush button B can use the change of the indicator light to prompt the user to operate.

The toilet device 100 of the disclosed embodiment is also provided with a fifth flushing mode: a fully automatic full flushing mode suitable for public or commercial applications where users are not familiar with the flushing process of the fourth flushing mode, and can be used to handle a higher volume of solids (feces) in the toilet bowl than usual. Due to the discharge of a larger volume of solids, a larger volume of water (e.g., about 800 ml instead of about 600 ml) needs to be injected to clean the bowl wall and flush the paper.

A second liquid level sensor 27 is provided on the back of the toilet bowl 10 to detect the liquid level after solid and liquid excrement are input into the toilet bowl. When the control device 24 receives that the liquid level in the toilet bowl exceeds a predetermined liquid level value, the fifth flushing mode is selected to be started.

Exemplarily, when about 170 ml of solids are input, the water level of the toilet bowl 10 is raised to the high water level of the toilet bowl. If more than about 200 ml of urine and more than about 170 ml of solid volume are input, the second liquid level sensor 27 can detect the input of excrement above the predetermined level and can adjust the flushing volume accordingly, which means that the fifth flushing mode will be performed.

The fifth flushing mode can be an automatic flushing mode. The main difference from the fourth flushing mode is that this mode does not require the user to operate a button. The fifth flushing command of the control device 24 to start the fifth flushing mode is obtained through the second liquid level sensor 27. When the second liquid level sensor 27 senses that the solids and liquids input into the toilet tank exceed the predetermined value (generally the liquid level in the toilet tank exceeds the predetermined liquid level value), the fifth flushing mode is selected to start.

After starting the fifth flushing mode, the control device 24 controls the opening of the first spraying pipeline 21 and the second spraying pipeline 22 for a second predetermined flushing time, and the second predetermined flushing time is greater than the first predetermined flushing time.

When the liquid level in the toilet bowl 10 reaches the fourth predetermined liquid level, the control device 24 controls the suction device 12 to start and then stop after the sixth predetermined emptying time; the first spraying pipeline 21 and the second spraying pipeline 22 are closed before the suction device 12 stops working, and the first spraying pipeline 21 and the second spraying pipeline 22 continue to be opened for the third predetermined duration after the suction device 12 is started. The fourth predetermined liquid level is greater than the third predetermined liquid level, the sixth predetermined emptying time is greater than the fifth predetermined emptying time, and the third predetermined duration is greater than or equal to the first predetermined duration.

When the suction device 12 stops suctioning, the first spraying pipeline 21 is opened again, and when the liquid level in the toilet bowl 10 reaches the first predetermined liquid level L1, the first spraying pipeline 21 is closed.

In order to distinguish between flushing water and the rising waste liquid level in the toilet bowl 10, the second liquid level sensor 27 is closed during the flushing operation and the inflow of liquid from top to bottom (urination). Exemplarily, when receiving the flushing signal, the second liquid level sensor 27 is turned on for detection to determine whether to turn on the fifth flushing mode; after the detection, the second liquid level sensor 27 is turned off, so when the toilet bowl 10 is flushed in a certain flushing mode or in use, the second liquid level sensor 27 is turned off. The remaining operating steps of the fifth flushing mode can be referred to the same as the fourth flushing mode, and will not be repeated here.

Optionally, the fifth flushing mode may be manually triggered, and the user may trigger a corresponding button to trigger the fifth flushing signal, which is not limited here.

When in the fifth flushing mode, the control device 24 is configured to: when the second liquid level sensor 27 detects that the liquid in the toilet bowl 10 reaches a fourth predetermined liquid level (the fourth predetermined liquid level is higher than the third liquid level), before the toilet bowl 10 starts to be emptied, control the on-off component 23 to open the first spray pipe 21 and the second spray pipe 22 for a second predetermined flushing time, and the second predetermined flushing time is greater than the first predetermined flushing time;

When the toilet bowl 10 is empty, the first spraying pipeline 21 and the second spraying pipeline 22 continue to be opened;

When the toilet bowl 10 is completely emptied, the first spray line 21 or the second spray line 22 is controlled to be opened, and when the water in the toilet bowl 10 reaches a first predetermined liquid level, the first spray line 21 or the second spray line 22 is closed.

The water consumption of the toilet device of the disclosed embodiment is less than 1.0 liter per flush. Compared with the high-efficiency toilet of the US standard 4.8 liters per flush (about 1.28 gallons per flush for the US HET toilet), the water saving effect of the fifth flushing mode is about 79%. When using pressurized flushing, the water saving is lower, about 1.5 liters per flush, but compared with 4.8 liters per flush, the water saving is still about 69%.

When any of the flushing modes described above is activated, a pressure boosting device is required to boost the pressure so that the fluid pressure can be between 1.2 and 4.0 bar. For example, the pressure boosting device can be a gravity water tank 25, an additional pump 29, etc.

When the pressurizing device uses only the gravity water tank 25, the water pressure of the gravity water tank 25 reaches about 0.15 to 0.2 bar, and the flushing performance will be reduced, but it can be compensated to a certain extent by a higher flushing volume and a larger flushing pipe diameter. The water in the gravity water tank 25 can be supplemented by tap water or rainwater. The water collection tank collects and filters the water. In this case, the solenoid valves 23a, 23b can also work without back pressure. When the gravity water tank 25 water level is low, the boost function will be closed.

The applicant has proved through research that the toilet device 100 implemented in the present disclosure has a high water-saving effect. Table 4 is the calculation of the water saving of two adults (one male and one female) using the toilet device 100 of the present disclosure embodiment after two full flushes and six urinations per day, with a water saving of 82% (without the male flushing mode, the water saving is 77%).

Table 4

*Example: One male and one female user per day

As shown in FIG1 , the flushing system 2 of the disclosed embodiment further includes a tank 28 connected to the first spray pipe 21 and the second spray pipe 22. The tank 28 is used to store a gas-liquid mixture with a certain pressure. The tank 28 can transport the gas-liquid mixture to the first spray pipe 21 and the second spray pipe 22 to flush the toilet bowl, which can improve the flushing capacity on the one hand and save water on the other.

In addition, a bubbler may be provided at the first nozzle 210 of the first spraying pipeline 21 and the second nozzle 220 of the second spraying pipeline 22 to produce a gas-liquid mixture, so as to achieve a better cleaning effect.

As shown in FIG6 , the tank body 28 is made of a pressure-resistant steel body and has a water inlet and an air inlet (not numbered). In an exemplary embodiment, the tank body 28 uses a diversion rubber diaphragm box, an air inlet valve is set at the air inlet, and an air pump is set. Under the action of the air pump, compressed air (1.2 to 4.0 bar or higher) can be input into the diversion rubber diaphragm box, and the effect is that the diversion rubber diaphragm box will expand to the side filled with water by pressurized air and fill the volume with pressurized air. A booster pump is set at the water inlet, and starting the booster pump will generate a water pressure higher than the pressure on the air side to resist the air pressure. Since air is compressible, one side of the water can compress the other side of the air, and fill the water into the tank body at the pressure set by the booster pump.

As shown in FIG. 5 and FIG. 6 , the flushing system of the embodiment of the present disclosure can be fully integrated into a box body D When the flushing system is used for a toilet, at least the control panel cannot be integrated into the box, and the panel needs to be set up in multiple corresponding toilets for the user to operate), an integrated, pre-installed one-piece design can be realized-plug and play, which can be placed on the floor or installed on the wall of the room. This design is easy to install and allows a flushing system to be applied to multiple toilets. For example, a box body for multiple toilets in a public toilet can be provided with an integrated piping system with a universal inlet connector, which can supply water from the side or top. All electronic components in the box body have been integrated and wired, so only the integrated flushing system needs to be electrically connected to the power supply, or it can be electrically connected to the operating switch (such as a plug). For the operating panel, the wiring is pre-installed, and the control unit (such as a CPU) is also integrated. In order to ensure a safe space, the tank body 28 can also be "flat", and its depth needs to be reduced compared to a spherical or cylindrical container. According to the performance of the booster pump, the booster pump can be installed outside the box. The control unit is also electrically connected to the first liquid level sensor 26 and the second liquid level sensor 27, and is used to start and stop the booster pump. When the usage time is too long and the risk of bacterial growth increases, the control unit can also start a cleaning flushing to help improve the sanitary condition of the accumulated water. The flushing system 2 can be provided with a connector with a plug, which can be electrically connected to a DC power source (such as a battery) for power supply.

The flushing time and emptying time of each flushing mode of the embodiment of the present disclosure can be set. Since the flushing process operates the on-off component 23 and the suction device 12 in a time sequence, the time setting can be adjusted according to the flushing system. After selecting this mode, the operator can select the start time of each valve/pump after pressing the corresponding start button. As shown in Table 5, the setting interface of the solid flushing mode displayed on the operation interface, the user can select and operate the time and operation sequence on the operation interface:

Table 5

This procedure can be done by the remote control or the Bluetooth program on your smartphone.

The first predetermined liquid level L1 described in the embodiment of the present disclosure is an initial basic liquid level, and the second predetermined liquid level L2 is an initial basic liquid level. The second predetermined liquid level L2 and the third predetermined liquid level L3 are calculated based on the basic liquid level. The second predetermined liquid level L2 and the third predetermined liquid level L3 can be determined by controlling parameters such as the opening time of the electric control valves 23a and 23b.

In the description of this specification, the description with reference to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the disclosed embodiments. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

Although the embodiments disclosed in this article are as above, the contents described are only embodiments adopted to facilitate understanding of this article and are not intended to limit this article. Any technician in the field to which this article belongs can make any modifications and changes in the form and details of implementation without departing from the spirit and scope disclosed in this article, but the scope of patent protection of this article shall still be defined by the attached claims.

Claims

A flushing system, comprising:

The first spraying pipeline and the second spraying pipeline are both configured to be connected to the toilet bowl and supply water to flush the toilet bowl;

an on-off assembly connected to the first spray pipeline and the second spray pipeline and configured to control the on-off of the first spray pipeline and the second spray pipeline;

a control device electrically connected to the on-off assembly, the control device being configured to control the opening and closing of the first spray line and the second spray line, and the sequence between the opening and closing of the first spray line and the second spray line and the emptying of the toilet bowl, so as to form a plurality of flushing modes;

The plurality of flushing modes include at least one of a first flushing mode and a second flushing mode, and further include a third flushing mode;

The first flushing mode is configured to open the first spray pipeline or the second spray pipeline after the toilet bowl is completely emptied; the second flushing mode is configured to open the first spray pipeline before the toilet bowl starts to empty, and open the first spray pipeline or the second spray pipeline after the toilet bowl is completely emptied; the third flushing mode is configured to open the first spray pipeline and the second spray pipeline before the toilet bowl starts to empty, and open the first spray pipeline or the second spray pipeline after the toilet bowl is completely emptied.
The flushing system according to claim 1, wherein, in the first flushing mode, the control device is configured to control the first spray line or the second spray line to open after the toilet bowl is emptied, and to close the first spray line or the second spray line when the water in the toilet bowl reaches a first predetermined liquid level.
The flushing system according to claim 2, wherein, when in the second flushing mode, the control device is configured to:

Before the toilet bowl starts to empty, the first spraying pipeline is controlled to be opened, and the first spraying pipeline is closed when the water in the toilet bowl reaches a second predetermined liquid level, and the second predetermined liquid level is greater than the first predetermined liquid level;

When the toilet bowl is emptied, the first spray pipeline or the second spray pipeline is controlled to be opened, and when the water in the toilet bowl reaches the first predetermined liquid level, the first spray pipeline is closed. Or the second spray line.
The flushing system according to claim 3, wherein, when in the third flushing mode, the control device is configured to:

Before the toilet bowl starts to empty, controlling the first spraying pipeline and the second spraying pipeline to open for a first predetermined flushing time so that the liquid level of the toilet bowl reaches a third predetermined liquid level, wherein the third predetermined liquid level is greater than the second predetermined liquid level;

while the toilet bowl is emptying, continuing to open the first spray line and the second spray line for a first predetermined duration;

Before the toilet bowl is completely emptied, closing the first spray pipeline and the second spray pipeline;

When the toilet bowl is completely emptied, the first spray pipeline or the second spray pipeline is controlled to be opened, and when the water in the toilet bowl reaches the first predetermined liquid level, the first spray pipeline or the second spray pipeline is closed.
The flushing system according to claim 4, wherein the plurality of flushing modes further comprises a fourth flushing mode; when in the fourth flushing mode, the control device is configured to:

Before the toilet bowl starts to empty, controlling the first spraying pipeline and the second spraying pipeline to open for the first predetermined flushing time so that the liquid level in the toilet bowl reaches the third predetermined liquid level;

When the toilet bowl is empty, continue to open the first spray line and the second spray line for a second predetermined duration, the second predetermined duration being greater than the first predetermined duration;

Before the toilet bowl is completely emptied, closing the first spray pipeline and the second spray pipeline;

When the toilet bowl is completely emptied, the first spray pipeline or the second spray pipeline is controlled to be opened, and when the water in the toilet bowl reaches the first predetermined liquid level, the first spray pipeline or the second spray pipeline is closed.
The flushing system according to claim 5 further includes a water tank, the water inlet ends of the first spray pipeline and the second spray pipeline are both connected to the water tank, the water tank is provided with a first liquid level sensor, the first liquid level sensor is electrically connected to the control device, and the control device is configured to remind the user not to use the fourth flushing mode when the first liquid level sensor detects that the water level and water consumption curve of the water tank does not match the water level and water consumption curve pre-stored in the control device.
The flushing system of claim 5, further comprising a second liquid level sensor electrically connected to the control device, the second liquid level sensor being configured to detect liquid in the toilet bowl;

The plurality of flushing modes include a fifth flushing mode, and when in the fifth flushing mode, the control device is configured to:

When the second liquid level sensor detects that the liquid in the toilet bowl reaches a fourth predetermined liquid level, before the toilet bowl begins to be emptied, the on-off assembly is controlled to open the first spray pipeline and the second spray pipeline for a second predetermined flushing time, the second predetermined flushing time being greater than the first predetermined flushing time;

When the toilet bowl is empty, continue to open the first spray pipeline and the second spray pipeline;

Before the toilet bowl is completely emptied, closing the first spray pipeline and the second spray pipeline;

When the toilet bowl is completely emptied, the first spray pipeline or the second spray pipeline is controlled to be opened, and when the water in the toilet bowl reaches the first predetermined liquid level, the first spray pipeline or the second spray pipeline is closed.
The flushing system according to any one of claims 1 to 7 further includes a booster device connected to the first spray pipeline and the second spray pipeline, and the booster device is configured to boost the water input into the first spray pipeline and the second spray pipeline.
The flushing system according to any one of claims 1 to 7, further comprising a tank for storing a gas-liquid mixture, the tank comprising an air inlet for introducing gas, a water inlet for introducing liquid, and a mixture outlet;

The flushing system further includes an air pump connected to the air inlet and/or a booster pump connected to the water inlet, and the mixture output port is connected to input ends of the first spraying pipeline and the second spraying pipeline.
The flushing system according to any one of claims 1 to 7, wherein the first spray pipeline is configured to be arranged at the front end of the toilet bowl, and the second spray pipeline is configured to be arranged at the rear end of the toilet bowl.
The flushing system according to any one of claims 1 to 7, further comprising a suction device electrically connected to the control device, wherein the suction device is configured to be connected to the toilet bowl and empty the excrement in the toilet bowl.
The flushing system according to claim 11, further comprising a backflow prevention device provided at the outlet of the suction device, wherein the backflow prevention valve is installed at the outlet of the suction device through a magnetic attraction element;

The anti-backflow valve is configured to automatically open under the push of the sucked object when the suction device is working, and automatically close when the suction device stops working.
According to the flushing system according to any one of claims 1 to 7, the control device also includes a control panel, the control panel is provided with a plurality of buttons, and the plurality of buttons are configured to receive user operations and trigger corresponding flushing commands to start a corresponding flushing mode.
A toilet device, comprising: a toilet body, and a flushing system according to any one of claims 1 to 13 installed in cooperation with the toilet body;

The toilet body comprises a toilet bowl, and the toilet bowl is provided with a first spray port and a second spray port; the first spray pipe and the second spray pipe of the flushing system are respectively installed in cooperation with the first spray port and the second spray port.
The flushing method according to claim 14, wherein the first spray port and the second spray port are both arranged at the upper part of the toilet bowl, the first spray port is arranged at the front part of the toilet bowl, and the second spray port is arranged behind the first spray port.
A method for flushing a toilet, characterized in that the flushing is performed using the flushing system according to any one of claims 1 to 13, the flushing method comprising:

According to different flushing commands received, controlling the flushing system to be in any one of a plurality of flushing modes;

The plurality of flushing modes include at least one of a first flushing mode and a second flushing mode, and further include a third flushing mode;

When the flushing system is in the first flushing mode, the first spraying pipeline or the second spraying pipeline is opened after the toilet bowl is emptied;

When the flushing system is in the second flushing mode, the first spraying pipeline is opened before the toilet bowl starts to empty, and the first spraying pipeline or the second spraying pipeline is opened after the toilet bowl is emptied;

When the flushing system is in the third flushing mode, the first and second spraying pipelines are opened before the toilet bowl starts to empty, and the second and second spraying pipelines are opened after the toilet bowl is emptied. The first spray cleaning pipeline or the second spray cleaning pipeline.
The flushing method according to claim 16, wherein when the first flushing command is received, the flushing system is controlled to be in a first flushing mode, in which:

Controlling the emptying of the toilet, and after the toilet bowl is emptied, controlling the first spraying pipeline or the second spraying pipeline to open;

When the water in the toilet bowl reaches a first predetermined liquid level, the first spray pipeline or the second spray pipeline is closed.
The flushing method according to claim 16, wherein, when the second flushing command is received, the flushing system is controlled to be in a second flushing mode, in which:

Before the toilet bowl starts to empty, the first spraying pipeline is controlled to be opened, and when the water in the toilet bowl reaches a second predetermined liquid level, the first spraying pipeline is closed;

The toilet is controlled to be emptied. When the toilet bowl is emptied, the first spray pipeline or the second spray pipeline is controlled to be opened. When the water in the toilet bowl reaches a first predetermined liquid level, the first spray pipeline or the second spray pipeline is closed.
The flushing method according to claim 18, wherein when a third flushing command is received, the flushing system is controlled to be in a third flushing mode, in which:

Controlling the first spray cleaning pipeline and the second spray cleaning pipeline to open for a first predetermined flushing time;

Controlling the emptying of the toilet, and when the toilet bowl is emptying, continuing to open the first spray line and the second spray line for a first predetermined duration, and closing the first spray line and the second spray line before the toilet bowl is completely emptied;

When the toilet bowl is completely emptied, the first spray pipeline or the second spray pipeline is controlled to be opened, and when the water in the toilet bowl reaches a first predetermined liquid level, the first spray pipeline or the second spray pipeline is closed.
The flushing method according to claim 19, wherein the plurality of flushing modes include a fourth flushing mode;

The flushing method further includes: upon receiving a fourth flushing command, controlling the flushing system to be in a fourth flushing mode, in which:

Before the toilet bowl begins to empty, controlling the first spray pipeline and the second spray pipeline to start flushing for a first predetermined flushing time;

controlling the toilet to empty, and when the toilet bowl is empty, continuing to open the first spray line and the second spray line for a second predetermined duration, the second predetermined duration being greater than the first predetermined duration;

Before the toilet bowl is completely emptied, closing the first spray pipeline and the second spray pipeline;

When the toilet bowl is completely emptied, the first spray pipeline or the second spray pipeline is controlled to be opened, and when the water in the toilet bowl reaches a first predetermined liquid level, the first spray pipeline or the second spray pipeline is closed.
The flushing method according to claim 20, wherein the plurality of flushing modes include a fifth flushing mode;

The flushing method further includes: upon receiving a fifth flushing command, controlling the flushing system to be in a fifth flushing mode, in which:

When the liquid in the toilet bowl reaches a fourth predetermined liquid level, opening the first spray pipeline and the second spray pipeline for a second predetermined flushing time, the second predetermined flushing time being greater than the first predetermined flushing time;

Controlling the emptying of the toilet, and when the toilet bowl is emptying, continuing to open the first spray pipeline and the second spray pipeline, and before the toilet bowl is completely emptied, closing the first spray pipeline and the second spray pipeline;

When the toilet bowl is completely emptied, the first spray pipeline is controlled to open or the second spray pipeline is controlled to open, and when the water in the toilet bowl reaches a first predetermined liquid level, the first spray pipeline or the second spray pipeline is closed.