Water tank assembly, flushing system and closestool

Abstract

The invention discloses a water tank assembly, a flushing system and a closestool. The second water tank is provided with a communicating hole communicated with the first water tank and a control valve for controlling the communicating hole to be opened or closed, and the control valve is arranged to be capable of opening or closing the communicating hole under the action of the water pressure of the first water tank and the second water tank, so that the first water tank supplements water to the second water tank or stops supplementing water to the second water tank.

Description

Technical Field

[0001] The present invention relates to bathroom technology, in particular to a cistern assembly, a flushing system and a toilet. Background Art

[0002] The control of the water circuit of the smart toilet is usually point-to-point and line-to-line. After the water circuit is separated from the angle valve end, the smart toilet flushing water circuit and the smart toilet cover human body cleaning system are used separately. There are corresponding advantages to controlling the water circuit alone, such as simple connection logic and no need to consider other related application relationships; but the disadvantage is that it will cause more connecting pipes between modules and the number of connecting parts, resulting in a larger space requirement for installation.

[0003] In addition, independent control of the water circuit will also cause the related functional devices to perform a single function, which will not effectively improve the utilization rate of the devices and will also cause a waste of resources on the control board. For example, for the water inlet module, the functions of controlling the water inlet of the human body cleaning system of the smart toilet cover and controlling the flushing system of the smart toilet are the same, and under normal circumstances, the functional applications of the two are staggered, and the two functions will not be used at the same time. However, after being independent, the functional tasks they perform are very simple, and two sets of water inlet modules are required to support a water circuit system, resulting in a waste of resources. Summary of the invention

[0004] The present application provides a water tank assembly, a flushing system and a toilet, which can solve the problems of too many water tank connection parts, cumbersome connection, complex control, high production cost and large space occupation.

[0005] The present application provides a water tank assembly, comprising:

[0006] First water tank;

[0007] The second water tank is provided with a connecting hole connected with the first water tank, and a control valve for controlling the opening and closing of the connecting hole; the control valve is configured to open or close the connecting hole under the action of the water pressure difference between the first water tank and the second water tank, so as to enable the first water tank to replenish water for the second water tank or stop replenishing water.

[0008] In an exemplary embodiment, the control valve is a check valve or a one-way valve;

[0009] When the water pressure of the first water tank is greater than the water pressure of the second water tank, the check valve opens the communicating hole;

[0010] When the water pressure of the first water tank is less than or equal to the water pressure of the second water tank, the check valve closes the communicating hole.

[0011] In an exemplary embodiment, the highest water level of the second water tank is lower than or equal to the highest water level of the first water tank, and the lowest liquid level of the second water tank is higher than or equal to the lowest liquid level of the first water tank.

[0012] In an exemplary embodiment, the second water tank is disposed outside the first water tank and is connected to the first water tank through a pipeline, and the volume of the second water tank is smaller than the volume of the first water tank.

[0013] In an exemplary embodiment, the bottom of the second water tank is connected to the bottom of the first water tank through a pipeline.

[0014] In an exemplary embodiment, the water tank assembly further comprises a buoyancy water inlet valve disposed in the first water tank, the buoyancy water inlet valve comprising a floating member capable of floating with the change of the water level of the first water tank to control the working state of the buoyancy water inlet valve; or

[0015] The water tank assembly also includes a floating liquid level switch arranged in the first water tank, and the floating liquid level switch includes a floating member that can follow the water level change of the first water tank to float and trigger a control signal, and the control signal is used to control the working state of the water inlet valve that supplies water to the first water tank.

[0016] In an exemplary embodiment, the second water tank includes a tank body and a cover body that cooperates with the tank body; the water tank assembly also includes a water outlet pipe that is disposed on the cover body and extends into the tank body.

[0017] The present application provides a flushing system, comprising: a water tank assembly as described in any of the above embodiments, a toilet flushing system connected to a first water tank of the water tank assembly, and a human body cleaning system connected to a second water tank of the water tank assembly.

[0018] In an exemplary embodiment, the human body cleaning system includes a first pressurizing device, a heating device and a cleaning device. The first pressurizing device pressurizes the water in the second water tank and then delivers it to the cleaning device for cleaning the human body. The heating device is used to heat the water in the second water tank and then supply it to the cleaning device.

[0019] In an exemplary embodiment, the flushing system further comprises one or more first liquid level detection elements respectively disposed in the first tank body of the water tank assembly, and a controller connecting the first liquid level detection elements and the human body washing system;

[0020] The controller is configured to control the human body washing system to stop running when the first liquid level detection element detects that the liquid level of the first water tank is lower than a predetermined first liquid level or is lower than the predetermined first liquid level for a predetermined time, and the predetermined first liquid level is higher than or equal to the lowest liquid level of the second water tank.

[0021] In an exemplary embodiment, the flushing system further comprises a second liquid level detection element respectively disposed in the second tank body of the water tank assembly, and a controller connecting the second liquid level detection element and the human body washing system;

[0022] The controller is configured to control the human body washing system to stop running when the second liquid level detection element detects that the liquid level of the second water tank is lower than a second predetermined liquid level or is lower than the second predetermined liquid level for a predetermined time.

[0023] In an exemplary embodiment, the toilet flushing system includes a second pressurizing device connected to the first water tank of the water tank assembly and a water circuit distribution valve, and the water circuit distribution valve is configured to be connected to a brush ring interface and a siphon interface of the toilet.

[0024] The present application provides a toilet, characterized in that it comprises: a toilet body, a water tank assembly as described in any of the above embodiments installed on the toilet body, or a flushing system as described in any of the above embodiments.

[0025] Compared with the related art, the second water tank of the water tank assembly of the embodiment of the present application is provided with a connecting hole and a control valve that can open or close the connecting hole under the action of the water pressure difference between the first water tank and the second water tank, so that the first water tank replenishes water for the second water tank. Therefore, the second water tank does not need to be designed with a separate water inlet component, thereby reducing the complexity of connection and control, reducing costs and saving space.

[0026] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by implementing the present application. Other advantages of the present application can be realized and obtained by the schemes described in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide an understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0028] Figure 1 It is an overall three-dimensional diagram of the water tank assembly of the embodiment of the present application;

[0029] Figure 2 A cross-sectional view of a water tank assembly according to an embodiment of the present application;

[0030] Figure 3 A three-dimensional exploded view of a water tank assembly according to an embodiment of the present application;

[0031] Figure 4A schematic diagram of a first water inlet state of a water tank assembly according to an embodiment of the present application;

[0032] Figure 5 A schematic diagram of a second water inlet state of a water tank assembly according to an embodiment of the present application;

[0033] Figure 6 A schematic diagram of a third water inflow state of a water tank assembly according to an embodiment of the present application;

[0034] Figure 7 A schematic diagram of a fourth water inflow state of the water tank assembly according to an embodiment of the present application;

[0035] Figure 8 A schematic diagram of a fifth water inflow state of the water tank assembly according to an embodiment of the present application;

[0036] Fig. 9 A schematic diagram of a second liquid level detection element being provided in the second water tank of the water tank assembly according to an embodiment of the present application;

[0037] Fig.10 A three-dimensional exploded view of a toilet according to an embodiment of the present application;

[0038] Fig.11 A three-dimensional diagram of a toilet according to an embodiment of the present application equipped with a flushing system;

[0039] Fig.12 A three-dimensional view of the assembly of the water tank assembly and the flushing system of an embodiment of the present application;

[0040] Fig.13 This is a connection diagram of a human body cleaning system according to an embodiment of the present application.

[0041] Figure markings: water tank assembly-100; first water tank-1; second water tank-2; connecting hole-20; control valve-21; valve body-30; floating part-31; switch body-30a; tank body-201; cover body-202; water outlet pipe-203; toilet-200; first boosting device-61; heating device-62; cleaning device-63; second boosting device-71; water channel distribution valve-72; siphon nozzle-73; brush circle nozzle-74; first liquid level detection element-4; second liquid level detection element-5. DETAILED DESCRIPTION

[0042] The present application describes multiple embodiments, but the description is exemplary rather than restrictive, and it is obvious to those skilled in the art that there may be more embodiments and implementations within the scope of the embodiments described in the present application. Although many possible feature combinations are shown in the drawings and discussed in the specific embodiments, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with any other feature or element in any other embodiment, or may replace any other feature or element in any other embodiment.

[0043] The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements disclosed in the present application may also be combined with any conventional features or elements to form a unique invention scheme defined by the claims. Any features or elements of any embodiment may also be combined with features or elements from other invention schemes to form another unique invention scheme defined by the claims. Therefore, it should be understood that any feature shown and / or discussed in the present application may be implemented individually or in any appropriate combination. Therefore, except for the limitations made according to the attached claims and their equivalents, the embodiments are not subject to other restrictions. In addition, various modifications and changes may be made within the scope of protection of the attached claims.

[0044] In addition, when describing representative embodiments, the specification may have presented the method and / or process as a specific sequence of steps. However, to the extent that the method or process does not rely on the specific order of the steps described herein, the method or process should not be limited to the steps of the specific order described. As will be understood by those of ordinary skill in the art, other sequences of steps are also possible. Therefore, the specific sequence of the steps set forth in the specification should not be interpreted as a limitation to the claims. In addition, the claims for the method and / or process should not be limited to the steps of performing them in the order written, and those skilled in the art can easily understand that these sequences can be changed and still remain within the spirit and scope of the embodiments of the present application.

[0045] like Figure 1-Figure 8 As shown, an embodiment of the present application provides a water tank assembly 100, which can be used in a toilet and supply water to the toilet, wherein the toilet can be a sitting toilet, a squatting toilet, etc.

[0046] like Figure 1 , Figure 2As shown, the water tank assembly 100 of the embodiment of the present application includes a first water tank 1 and a second water tank 2, wherein the second water tank 2 is provided with a connecting hole 20 connected to the first water tank 1, and a control valve 21 for controlling the opening and closing of the connecting hole 20. The control valve 21 is configured to open or close the connecting hole 20 under the action of the water pressure difference between the first water tank 1 and the second water tank 2, so as to enable the first water tank 1 to replenish water for the second water tank 2 or stop replenishing water. The water pressure difference is generated after the water level of the first water tank 1 and the second water tank 2 forms a height difference.

[0047] The second water tank 2 of the water tank assembly 100 of the embodiment of the present application is provided with a connecting hole 20 and a control valve that can open or close the connecting hole 20 under the action of the water pressure difference between the first water tank 1 and the second water tank 2, so that the first water tank 1 can replenish water for the second water tank 2. Therefore, the second water tank 2 does not need to be designed with a separate water inlet component, thereby reducing the complexity of connection and control, reducing costs, and saving space.

[0048] like Figure 6 As shown, the control valve 21 in this embodiment can be a check valve or a one-way valve. When the water pressure of the first water tank 1 is greater than the water pressure of the second water tank 2, the control valve 21 opens the connecting hole 20 under the action of the water flow of the first water tank 1, so that the water in the first water tank 1 flows into the second water tank 2 to replenish the water in the second water tank 2. Figure 8 As shown, when the water pressure of the first water tank 1 is less than or equal to the water pressure of the second water tank 2, the control valve 21 closes the connecting hole 20 to prevent the water flow of the second water tank 2 from flowing back into the first water tank 1. At this time, the second water tank 2 stores water and the first water tank 1 is using water. Of course, the control valve 21 can also adopt other forms of non-return control mechanisms that can prevent water from flowing back into the first water tank 1, which is not limited here.

[0049] like Figure 8 As shown, the highest water level of the second water tank 2 is lower than or equal to the highest water level of the first water tank 1, so that the first water tank 1 can fill the second water tank with water. The lowest liquid level of the second water tank 2 is higher than or equal to the lowest liquid level of the first water tank 1, so as to prevent the second water tank 2 from being too low, resulting in the control valve 21 being in an open state under the water pressure and water gravity of the first water tank 1 when the second water tank 2 is replenished with water, so that the control valve 21 cannot be closed.

[0050] like Figure 2 As shown, the second water tank 2 is arranged outside the first water tank 1 and is connected to the first water tank 1 through a pipeline. The volume of the second water tank 2 is smaller than that of the first water tank 1. The bottom of the second water tank 2 is connected to the bottom of the first water tank 1 through a pipeline, so that the first water tank 1 can also replenish water for the second water tank 2 when the water level is low.

[0051] like Figure 2 , Figure 3As shown, the water tank assembly 100 also includes a buoyancy water inlet valve arranged in the first tank body 1, including a valve body 30, and a floating member 31 equipped with the valve body 30, and the floating member 31 includes a valve body 30 that can float with the water level change of the first water tank 1 to control the water inlet state of the first water tank 1. Among them, the buoyancy water inlet valve can be a control valve such as a float valve and a ball valve that uses the floating principle of the floating member to achieve on-off control. The floating member 31 can be a buoy or a floating ball equipped with the valve body 30, which can control the working state of the buoyancy water inlet valve. For example, when the floating member 31 is at a high water level, the buoyancy water inlet valve is controlled to be closed and water inlet is stopped; when the floating member 31 is at a low water level, the buoyancy water inlet valve is controlled to be opened and water inlet begins. This article mainly describes in detail the buoyancy device 3 as the buoyancy water inlet valve.

[0052] In an exemplary embodiment, Figure 4 As shown, the water tank assembly 100 further includes a floating liquid level switch 3 disposed in the first tank body 1, and the floating liquid level switch 3 is configured to be connected to a water inlet valve (not shown, which may be an electrically controlled valve) that supplies water to the first water tank 1. The floating liquid level switch includes a switch body 30a, and a floating member 31 that is movably disposed on the switch body 30a and can float following the change in the water level of the first water tank 1 to trigger a control signal, wherein the control signal is used to control the working state of the water inlet valve.

[0053] For example, when the floating member 31 triggers a control signal to reach a first liquid level (a preset high liquid level), a controller (not shown) connected to the water inlet valve can control the water inlet valve to close and stop supplying water; when the floating member 31 triggers a control signal to reach a second liquid level (a preset low liquid level) or when the trigger reaches the second liquid level for a first predetermined time, the controller controls the water inlet valve to open and water is replenished. The specific method of controlling the liquid level can be set according to actual conditions and is not limited here.

[0054] like Figure 3 As shown, the second water tank 2 includes a tank body 201 and a cover 202 that fits the tank body 201, wherein the cover 202 can prevent dust and debris from falling into the second water tank 2, thereby ensuring the cleanliness of the second water tank 2. The water tank assembly 100 also includes a water outlet pipe 203 disposed on the cover 202 and extending into the tank body 201, for taking water from the second water tank 2.

[0055] like Figure 2 As shown, the water tank assembly 100 further includes one or more first liquid level detection elements 4 disposed in the first tank body 1 . The first liquid level detection elements 4 are configured to detect the liquid level of the first tank body 1 and monitor the water level of the first water tank 1 .

[0056] The water tank assembly 100 also includes a second liquid level detection element (not shown) disposed in the second tank body 2, which is used to detect the liquid level of the second water tank 2 to prevent the second water tank 2 from running without water, causing the heating device 62 of the human body washing system described below to dry out and be damaged.

[0057] like Figure 5-Figure 8 As shown, when the water tank assembly 100 of the embodiment of the present application is working, in the initial state, there is no water in the first water tank 1 and the second water tank 2, and the buoyancy inlet valve 3 opens under the action of the gravity of the floating member 31 itself or the action of the reset element, and the buoyancy inlet valve 3 starts to take in water to replenish the first water tank 1. When the first water tank 1 is gradually replenished with water, due to the water pressure difference between the second water tank 2 and the first water tank 1, the water flow opens the control valve 21, and the water flows from the first water tank 1 into the second water tank 2 to replenish the second water tank 2. When the water replenishment of the second water tank 2 is completed, the control valve 21 closes the connecting hole 20. When the liquid level of the first water tank 1 reaches the highest liquid level, the floating member 31 controls the buoyancy inlet valve 3 to close, and then stops the water replenishment of the entire water tank assembly 100.

[0058] After the water in the first water tank 1 is used, the water level drops. Due to the water pressure in the second water tank 2, the control valve 21 remains closed, so that the water in the second water tank 2 remains in the second water tank 2. The floating member 31 of the first water tank 1 controls the floating water inlet valve 3 to open again, and the first water tank 1 is replenished with water again. When the second water tank 2 uses water, if there is water in the first water tank 1, the second water tank 2 will continue to be replenished with water.

[0059] The water tank assembly 100 of the embodiment of the present application utilizes the first water tank 1 and the second water tank 2 by setting a control valve 20, which can realize water replenishment and water level control of the two water tanks under the action of the pressure difference between the two water tanks, thereby achieving the purpose of continuous water use in the two water tanks. It does not need to use an electromagnetic valve body or motor control to realize water inlet control, and has low cost and simple structure.

[0060] like Fig.11 , Fig.12 As shown, the embodiment of the present application also provides a toilet 200 including a toilet body, a water tank assembly 100 or a flushing system as described in any of the above embodiments installed on the toilet body. The flushing system includes a toilet flushing system connected to the first water tank 1 of the water tank assembly 100, and a human body cleaning system connected to the second water tank 2 of the water tank assembly 100.

[0061] The first water tank 1 of the water tank assembly 100 is a flushing water tank, which can be used to supply water to the brush ring interface and the siphon interface of the toilet to provide flushing water. The second water tank 2 of the water tank assembly 100 is a cleaning water tank, which can be used to supply water to the cleaning device 61 of the toilet to provide cleaning water. The water tank assembly 100 can maintain continuous water use for the two functional systems of the toilet 200.

[0062] The human body washing system includes a first pressurizing device 61, a heating device 62, and a cleaning device 63. The first pressurizing device 61 pressurizes the water in the second water tank 2 and then delivers it to the cleaning device 63 for washing the human body. The heating device 63 is used to heat the water in the second water tank 2 and then supply it to the cleaning device 63. The cleaning device 63 is a device for washing the human body. The specific structure can refer to the prior art and will not be repeated here.

[0063] The toilet flushing system connects the first water tank 1 of the water tank assembly 100 and the siphon interface and the brush ring interface (not shown) of the toilet 200, and is used to flush the toilet. The toilet flushing system includes a second booster 71, a water channel distribution valve 72, a siphon nozzle 73, and a brush ring nozzle 74. The second booster 71 increases the water output from the first water tank 1, supplies it to the water channel distribution valve 72, divides the water into two paths, and supplies them to the siphon nozzle 74 and the brush ring nozzle 74 respectively, to flush the toilet body.

[0064] like Figure 12-13 As shown, an embodiment of the present application also provides a flushing system, including a water tank assembly 100 as described in any of the above embodiments, a toilet flushing system connected to the first water tank 1 of the water tank assembly 100, and a human body cleaning system connected to the second water tank 2 of the water tank assembly 100.

[0065] When the flushing system is working, when a flushing command is received, the toilet flushing system starts, the first water tank 1 starts to use water, and the water level drops, driving the floating member 31 to drop, thereby controlling the floating water inlet valve 3 to start replenishing water. In one case: if the first water tank 1 is not full, the floating member 31 is in a natural falling state, and the floating water inlet valve 3 is always in an open water inlet state. In another case: if the first water tank 1 has reached a certain full water level, the water level of the second water tank 2 drops, and due to the height difference between the liquid levels of the two water tanks, the water in the first water tank 1 flows into the second water tank 2 to replenish the second water tank 2.

[0066] When the washing command is received, the human body washing system starts to start, the water level of the second water tank 2 drops, and the water in the first water tank 1 flows to the second water tank 2. After the water level of the first water tank 1 drops, the floating member 31 drops and starts to replenish the first water tank 1. In one case: if the first water tank 1 is not full, the floating member 31 is in a natural falling state, and the floating water inlet valve 3 is always in an open water inlet state. In another case: if the first water tank 1 has reached a certain full water level, the water level of the second water tank 2 drops, and due to the height difference between the two water tanks, the water in the first water tank 2 flows into the second water tank 2.

[0067] In an exemplary embodiment, the first water tank 1 may be provided with two first liquid level detection elements 4, one for detecting the high liquid level of the first water tank 1, and the other for detecting the low liquid level of the first water tank 1. The controller (not shown) connected to the flushing system and the first liquid level detection element 4 determines whether the high liquid level of the first water tank 1 is normal by detecting the liquid level detected by the first detection element 4 of the high liquid level, thereby determining whether there is water in the first water tank 1 (the high liquid level is set at the full water position of the first water tank). The controller determines whether the low liquid level of the first water tank 1 is normal by detecting the liquid level detected by the first liquid level detection element 4 of the low liquid level, thereby determining whether there is water in the second water tank 2 (the low liquid level is set at the full water position of the flushing water tank). When the first water tank 1 is at a high liquid level, the toilet flushing system and the human body washing system are normally started. When the detected low liquid level is normal (greater than or equal to the predetermined first liquid level), the human body washing system can be started. When the low liquid level is abnormal (lower than the predetermined first liquid level or lower than the predetermined first liquid level for a predetermined time), the human body flushing function is stopped, and a water shortage alarm is issued to prevent the heating device 62 from drying out and being damaged. The predetermined first liquid level is higher than or equal to the lowest liquid level of the second water tank 2, thereby ensuring that there is water in the second water tank 2 at this liquid level. Of course, a second liquid level detection element 4 can also be provided to detect both the high liquid level of the first water tank 1 and the low liquid level of the first water tank 1.

[0068] like Fig. 9 As shown, in another exemplary embodiment, the first water tank 1 may be provided with a first liquid level detection element 4 for detecting the liquid level of the first water tank 1, and the second water tank 2 may be provided with a second liquid level detection element 5 for detecting the liquid level of the second water tank 2. The flushing system may monitor the water level of the first water tank 1 and the second water tank 2 through the first liquid level detection element 4 and the second liquid level detection element 5. When a flushing command is received, and the liquid level detected by the liquid level detection element 4 is greater than or equal to the first predetermined liquid level (a higher liquid level), the controller connected to the flushing system and the first liquid level detection element 4 may start the toilet flushing system; when it is lower than the first predetermined liquid level, the toilet flushing system is not started. In addition, when a cleaning command is received, the flushing system determines whether the liquid level of the second water tank 2 is normal through the second liquid level detection element 5 of the second water tank 2, and determines whether water enters the second water tank 2. When the liquid level is normal (the liquid level is greater than or equal to the second predetermined liquid level), the controller connected to the flushing system and the second liquid level detection element 5 starts the human body cleaning system. Specifically, the first increasing device 61 is controlled to extract water stored in the second water tank 2 and provide it to the heating device 62 and the cleaning device 63 connected to the water outlet of the heating device 62, and the heating device 62 and the cleaning device 63 are started to realize the cleaning function; when the detected liquid level is abnormal (the liquid level is less than the second predetermined liquid level or less than the second predetermined liquid level for a predetermined time), the controller controls the human body cleaning system to stop running, and can issue a water shortage alarm to prevent the heating device 62 from drying out and being damaged.

[0069] The two water tanks of the flushing assembly 100 of the embodiment of the present application can supply water to the flushing water circuit of the flushing system and the toilet flushing system respectively, and can match the water replenishment of the two toilet flushing systems under different water use conditions, reducing functional components, reducing the complexity of connection and control, and reducing costs and saving space.

[0070] In the description of the present application, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "relative", "four corners", "periphery", "mouth structure" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0071] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the terms "connection", "direct connection", "indirect connection", "fixed connection", "installation", and "assembly" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; the terms "installation", "connection", and "fixed connection" can be a direct connection, or an indirect connection through an intermediate medium, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0072] Although the implementation methods disclosed in this application are as above, the contents described are only implementation methods adopted to facilitate understanding of this application, and are not intended to limit this application. Any technician in the field to which this application belongs can make any modifications and changes in the form and details of implementation without departing from the spirit and scope disclosed in this application, but the scope of patent protection of this application shall still be defined by the attached claims.

Claims

1. A water tank assembly, characterized in that: include: First water tank; The second water tank is provided with a connecting hole connected with the first water tank, and a control valve for controlling the opening and closing of the connecting hole; the control valve is configured to open or close the connecting hole under the action of the water pressure difference between the first water tank and the second water tank, so as to enable the first water tank to replenish water for the second water tank or stop replenishing water.

2. The water tank assembly according to claim 1, characterized in that: The control valve is a check valve or a one-way valve; When the water pressure of the first water tank is greater than the water pressure of the second water tank, the check valve opens the communicating hole; When the water pressure of the first water tank is less than or equal to the water pressure of the second water tank, the check valve closes the communicating hole.

3. The water tank assembly according to claim 1, characterized in that: The highest water level of the second water tank is lower than or equal to the highest water level of the first water tank, and the lowest liquid level of the second water tank is higher than or equal to the lowest liquid level of the first water tank.

4. The water tank assembly according to claim 3, characterized in that: The second water tank is arranged outside the first water tank and is connected with the first water tank through a pipeline, and the volume of the second water tank is smaller than the volume of the first water tank.

5. The water tank assembly according to claim 4, characterized in that: The bottom of the second water tank is communicated with the bottom of the first water tank through a pipeline.

6. The water tank assembly according to any one of claims 1 to 5, characterized in that: It also includes a buoyancy water inlet valve disposed in the first water tank, the buoyancy water inlet valve including a floating member capable of floating with the change of the water level of the first water tank to control the working state of the buoyancy water inlet valve; or The water tank assembly also includes a floating liquid level switch arranged in the first water tank, and the floating liquid level switch includes a floating member that can follow the water level change of the first water tank to float and trigger a control signal, and the control signal is used to control the working state of the water inlet valve that supplies water to the first water tank.

7. The water tank assembly according to any one of claims 1 to 5, characterized in that: The second water tank includes a tank body and a cover body that cooperates with the tank body; the water tank assembly also includes a water outlet pipe that is arranged on the cover body and extends into the tank body.

8. A flushing system, characterized in that: include: A water tank assembly as described in any one of claims 1-7, a toilet flushing system connected to the first water tank of the water tank assembly, and a human body cleaning system connected to the second water tank of the water tank assembly.

9. The flushing system according to claim 8, characterized in that The human body cleaning system includes a first boosting device, a heating device and a cleaning device. The first boosting device boosts the water in the second water tank and then delivers it to the cleaning device for cleaning the human body. The heating device is used to heat the water in the second water tank and then supply it to the cleaning device.

10. The flushing system according to claim 8, characterized in that It also includes one or more first liquid level detection elements respectively disposed in the first tank body of the water tank assembly, and a controller connecting the first liquid level detection elements and the human body washing system; The controller is configured to control the human body washing system to stop running when the first liquid level detection element detects that the liquid level of the first water tank is lower than a predetermined first liquid level or is lower than the predetermined first liquid level for a predetermined time, and the predetermined first liquid level is higher than or equal to the lowest liquid level of the second water tank.

11. The flushing system according to claim 8, characterized in that It also includes a second liquid level detection element respectively disposed in the second box body of the water tank assembly, and a controller connecting the second liquid level detection element and the human body washing system; The controller is configured to control the human body washing system to stop running when the second liquid level detection element detects that the liquid level of the second water tank is lower than a second predetermined liquid level or is lower than the second predetermined liquid level for a predetermined time.

12. The flushing system according to claim 8, characterized in that The toilet flushing system comprises a second booster device connected to the first water tank of the water tank assembly and a water channel distribution valve, wherein the water channel distribution valve is configured to be connected to a brush ring interface and a siphon interface of the toilet.

13. A toilet, characterized in that: include: A toilet body, a water tank assembly as described in any one of claims 1-8 installed on the toilet body, or a flushing system as described in any one of claims 9-12.

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