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 arranged in the first water tank and can float along with the water level change of the first water tank; 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 and closed; the control valve is arranged to open or close the communicating hole under the action of the water pressure difference 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.

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 water circuit are used separately. There are corresponding advantages to controlling the water circuit independently, 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 device 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 water circuit of the smart toilet cover and controlling the smart toilet flushing system 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 single, 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 arranged in the first water tank and is configured to float following the water level change of the first water tank; the second water tank is provided with a connecting hole connected to 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, and is configured to open or close the communication hole under the action of a water pressure difference between the first water tank and the second water tank;

[0009] When the water pressure of the first water tank is greater than the water pressure of the second water tank, the control valve opens the communication 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 control valve closes the communication hole.

[0011] In an exemplary embodiment, the second water tank includes a water storage tank for storing water and a hollow floating tank, and the floating tank is configured to keep the second water tank floating on water.

[0012] In an exemplary embodiment, the first water tank and the second water tank are provided with a guide structure that cooperates with each other to achieve the lifting and lowering guidance of the second water tank, and the second water tank is configured to be able to perform lifting and lowering movement under the guidance of the guide structure when the water level of the first water tank changes;

[0013] The guide structure comprises a guide column which is arranged in the first water tank and extends along the depth direction of the first water tank, and an outer sleeve which is arranged in the second water tank and movably sleeved on the guide column.

[0014] In an exemplary embodiment, the floating box and the guide column are respectively disposed on both sides of the water storage tank.

[0015] In an exemplary embodiment, the communication hole is provided on the bottom wall of the second water tank, and a cover shell surrounding the communication hole is provided at the bottom of the second water tank.

[0016] In an exemplary embodiment, the water tank assembly further comprises a buoyancy water inlet valve which is installed in cooperation with the first water tank and controls the water inlet state of the first water tank; or,

[0017] The water tank assembly also includes a floating liquid level switch installed in conjunction with the first water tank, which is configured to trigger a control signal, wherein the control signal is used to control the working state of a water inlet valve that supplies water to the first water tank.

[0018] In an exemplary embodiment, the second water tank includes a tank body and a cover body that cooperates with the tank body; the second water tank also includes a water outlet pipe that is arranged on the cover body and extends into the tank body.

[0019] 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.

[0020] In an exemplary embodiment, the flushing system further comprises one or more first liquid level detection elements 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;

[0021] 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.

[0022] 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;

[0023] 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.

[0024] 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.

[0025] 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.

[0026] The present application provides a toilet, comprising: 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.

[0027] Compared with the related art, the first water tank of the water tank assembly of the embodiment of the present application arranges the second water tank inside the first water tank. The second water tank can float following the water level change of the first water tank and replenish water through the water pressure difference. 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.

[0028] 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

[0029] 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.

[0030] Figure 1 It is an overall three-dimensional diagram of the water tank assembly of the embodiment of the present application;

[0031] Figure 2 A cross-sectional view of a state in which the second water tank of the water tank assembly of an embodiment of the present application is floating;

[0032] Figure 3 A cross-sectional view of a state in which the second water tank of the water tank assembly of an embodiment of the present application is lowered;

[0033] Figure 4 A three-dimensional exploded view of a water tank assembly according to an embodiment of the present application;

[0034] Figure 5 A three-dimensional diagram of another embodiment of the buoyancy water inlet control device of the embodiment of the present application;

[0035] Figure 6 A schematic diagram of a first water inlet state of a water tank assembly according to an embodiment of the present application;

[0036] Figure 7 A schematic diagram of a second water inlet state of a water tank assembly according to an embodiment of the present application;

[0037] Figure 8 A schematic diagram of a third water inflow state of a water tank assembly according to an embodiment of the present application;

[0038] Fig. 9 A schematic diagram of a fourth water inflow state of the water tank assembly according to an embodiment of the present application;

[0039] Fig.10 A three-dimensional exploded view of a toilet according to an embodiment of the present application;

[0040] Fig.11 A three-dimensional diagram of the connection between the toilet body and the flushing system of an embodiment of the present application;

[0041] Fig.12 A human body washing water circuit connection diagram of a flushing system according to an embodiment of the present application;

[0042] Fig.13 This is a connection diagram of a toilet flushing system of a flushing system according to an embodiment of the present application.

[0043] Figure markings: water tank assembly-100; first water tank-1; second water tank-2; buoyancy water inlet valve-3; floating liquid level switch-3a; valve body-30; floating member-31; switch body-30a; connecting hole-20; control valve-21; water storage tank-201; floating tank-202; outer sleeve-203; cover shell-204; tank body-205; cover body-206; water outlet pipe-207; second liquid level detection element-4; first boosting device-61; heating device-62; cleaning device-63; toilet-200; second boosting device-71; water channel distribution valve-72; siphon nozzle-73; brush ring nozzle-74. DETAILED DESCRIPTION

[0044] 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.

[0045] 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.

[0046] 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.

[0047] like Figure 1-Figure 10 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.

[0048] like Figure 2-Figure 4 As 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. The second water tank 2 is arranged in the first water tank 1 and is arranged to float following the water level change of the first water tank 1. The second water tank is provided with a connecting hole 20 connected with 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 arranged 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 realize that the first water tank 1 replenishes water for the second water tank 2 or stops replenishing water.

[0049] The first water tank 1 of the water tank assembly 100 of the embodiment of the present application arranges the second water tank 2 inside the first water tank 1, and the second water tank 2 can float following the water level change of the first water tank 1 and replenish water through the water pressure difference, so that 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.

[0050] like Figure 3 As shown, the first water tank 1 and the second water tank 2 are provided with a guide structure that cooperates with each other to achieve the lifting and lowering guidance of the second water tank 2. The guide structure in this embodiment includes a guide column 10 provided in the first water tank 1 and extending along the depth direction of the first water tank, and an outer sleeve 203 provided in the second water tank 2 and movably sleeved on the guide column. By providing a guide structure, the water tank assembly 100 can guide the second water tank 2 to perform lifting and lowering movements at a specific position under the action of water flow. In other embodiments, the guide structure can also be a guide plate or a guide rope provided in the first water tank 1 to form a guide gap for the second water tank 2 to pass through, which is not limited here.

[0051] like Figure 3As shown, the second water tank 2 includes a water storage tank 201 for storing water and a hollow floating tank 202, and the floating tank 202 is configured to keep the second water tank 2 floating on the water when there is water or no water in the second water tank 2. The second water tank 2 of the water tank assembly 100 of the embodiment of the present application can ensure that the water storage tank 202 is full and still able to keep the second water tank 2 floating on the water by providing the floating tank 201. The floating tank 203 and the guide column 10 are respectively arranged on both sides of the water storage tank 201.

[0052] like Figure 6-Figure 9 As shown, the control valve 21 in this embodiment can control the water in the first water tank 1 to enter the second water tank 2, but the water in the second water tank 2 does not flow back into the first water tank 1. The control valve 21 can be a check valve or a one-way valve, and 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. Of course, the control valve 21 can also adopt other forms of check control mechanisms that can prevent water from flowing back into the first water tank 1, which is not limited here.

[0053] like Figure 6 As shown, when the water pressure of the first water tank 1 is greater than the water pressure of the second water tank 2, there is water in the first water tank 1 and the water in the second water tank 2 is insufficient, the control valve 21 opens the connecting hole 20, 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. Fig. 9 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, at this time, the second water tank 2 stores water, or the water storage capacity of the first water tank 1 is insufficient, 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.

[0054] like Figure 3 As shown, the communicating hole 20 is provided on the bottom wall of the second water tank 2, and a cover 204 surrounding the communicating hole 20 is provided at the bottom of the second water tank 2. By providing the communicating hole 20 on the bottom wall of the second water tank 2, the water in the second water tank 2 can be replenished in time and will not be reduced too much due to the drop of the water in the first water tank 1. The cover 204 can concentrate the water flow, so that there is enough water pressure to resist the control valve 21 and open the communicating hole 20.

[0055] like Figure 2 As shown, the water tank assembly 100 also includes one or more first liquid level detection elements 4 disposed in the first tank body 1 and one or more second liquid level detection elements (not shown) disposed in the second tank body 2. The first detection element 4 and the second detection element are used to detect the liquid levels of the first water tank 1 and the second water tank 2, respectively.

[0056] like Figure 4As shown, the second water tank 2 includes a tank body 205 and a cover 206 that fits the tank body 205; the water tank assembly 100 also includes a water outlet pipe 207 that is disposed on the cover 206 and extends into the tank body 205. The second water tank 2 of this embodiment can prevent dust and debris from falling into the second water tank 2 by providing the cover 206, thereby ensuring the cleanliness of the second water tank 2.

[0057] like Figure 4 As shown, the water tank assembly 100 in this embodiment also includes a buoyancy water inlet valve 3 which is installed in cooperation with the first water tank 1 and controls the water inlet state of the first water tank 1. The buoyancy water inlet valve 3 includes a valve body 30 and a floating member 31 equipped with the valve body 30. The buoyancy water inlet valve can be a control valve such as a float valve or a ball valve that uses the floating principle of a 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 starts.

[0058] In an exemplary embodiment, Figure 5 As shown, the water tank assembly 100 also includes a floating liquid level switch 3a installed in cooperation with the first water tank 1, which is arranged to be connected to the water inlet valve (not shown, which may be an electrically controlled valve) supplying water to the first water tank 1. The floating liquid level switch 3a includes a switch body 30a, and a floating member 31 that is movably arranged on the switch body 30a and can float with the change of 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. For example, when the floating member 31 triggers a control signal reaching 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 reaching a second liquid level (a preset bottom liquid level) or when the second liquid level reaches a first predetermined time, the controller controls the water inlet valve to open and water is replenished. The specific way of controlling the liquid level can be set according to the actual situation and is not limited here. This article takes the buoyancy water inlet valve 3 as a force to carry out a detailed description of the function cabinet and effect of the water tank assembly 100.

[0059] like Figure 8 As shown, the floating member 31 is arranged above the second water tank 1. When the first water tank 1 is filled with water, the second water tank 1 rises. When the water is filled, the floating member 31 closes the floating water inlet valve 3 and stops replenishing the first water tank 1. Fig. 9 As shown, when the first water tank 1 is used, the water level drops, and the floating member 31 opens the floating water inlet valve 3 to start replenishing water to the first water tank 1 .

[0060] like Figure 6-Figure 9As 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. The buoyancy inlet valve 3 is controlled to open under the action of the gravity of the floating member 31 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. At this time, the second water tank 2 is located at the bottom of 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 to the second water tank 2 to replenish the second water tank 2. At the same time, the second water tank 2 will float synchronously with the increase of the liquid level of the first water tank 1. When the second water tank 2 is replenished with water, the water levels of the two water tanks are the same, and the water pressure balance is achieved. The control valve 21 closes the connecting hole 20 and stops replenishing water.

[0061] like Fig. 9 As shown, after the water in the first water tank 1 is used, the water level drops, and the second water tank 2 drops as the water level drops, and the floating water inlet valve 3 opens to replenish water for the first water tank 1 again. Due to the water pressure of the second water tank 2, the control valve 21 is closed, and the water pressure in the second water tank 2 is greater than the water pressure in the first water tank 1, and the control valve 21 is kept closed to the connecting hole 20. When the second water tank 2 uses water and the water pressure in the second water tank 2 is less than the water pressure in the first water tank 1, the first water tank 1 continues to replenish water for the second water tank 2.

[0062] The design of the water tank assembly 100 of the embodiment of the present application can not only realize the water replenishment of the two water tanks, but also can perform the repeated action of continuous water replenishment.

[0063] like Figure 10-13 As shown, an embodiment of the present application further provides a toilet 200 including a toilet body, and a water tank assembly 100 or a flushing system as described in any of the above embodiments installed on the toilet body.

[0064] 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 supply in the two waterways of the toilet 200.

[0065] like Figure 11-13 As shown, an embodiment of the present application also provides a flushing system, including a water tank assembly 100, a toilet flushing system and a human body cleaning water circuit as described in any of the above embodiments.

[0066] The clean water circuit 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 cleaning 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 cleaning the human body. The specific structure can refer to the prior art and will not be repeated here.

[0067] 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.

[0068] 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 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 first detection element 4 detecting the high liquid level, thereby determining whether the first water tank 1 is full of water (the high liquid is set at the full water position of the first water tank 1). 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 detecting the low liquid level, thereby determining whether there is water in the second water tank 2 (the low liquid level is set at the bottom position of the first water tank 1). When it is a high liquid level, when the flushing command and the cleaning command are received, the toilet flushing system and the human body cleaning system are normally started; when the low liquid level is normal (greater than or equal to the predetermined first liquid level), the human body cleaning 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 cleaning 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 first 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.

[0069] 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 for detecting the liquid level of the second water tank 2. The flushing system may monitor the water levels of the first water tank 1 and the second water tank 2 respectively through the first liquid level detection element 4 and the second liquid level detection element. When a flushing command is received, and the first liquid level detection element 4 detects that the liquid level is greater than or equal to the first predetermined 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 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 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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, It is characterized in that include: First water tank; The second water tank is arranged in the first water tank and is configured to float following the water level change of the first water tank; the second water tank is provided with a connecting hole connected to 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, It is characterized in that The control valve is a check valve or a one-way valve, and is configured to open or close the communication hole under the action of the water pressure difference between the first water tank and the second water tank; When the water pressure of the first water tank is greater than the water pressure of the second water tank, the control valve opens the communication 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 control valve closes the communication hole.

3. The water tank assembly according to claim 1, It is characterized in that The second water tank includes a water storage tank for storing water and a hollow floating tank, and the floating tank is configured to keep the second water tank floating on water.

4. The water tank assembly according to claim 3, It is characterized in that The first water tank and the second water tank are provided with a guide structure that cooperates with each other to realize the lifting and lowering guidance of the second water tank, and the second water tank is arranged to be able to perform lifting and lowering movement under the guidance of the guide structure when the water level of the first water tank changes; The guide structure comprises a guide column which is arranged in the first water tank and extends along the depth direction of the first water tank, and an outer sleeve which is arranged in the second water tank and movably sleeved on the guide column.

5. The water tank assembly according to claim 4, It is characterized in that The floating box and the guide column are respectively arranged on both sides of the water storage tank.

6. The water tank assembly according to claim 1, It is characterized in that The communicating hole is arranged on the bottom wall of the second water tank, and a cover shell surrounding the communicating hole is arranged on the bottom of the second water tank.

7. The water tank assembly according to claim 1, It is characterized in that It also includes a buoyancy water inlet valve installed in conjunction with the first water tank and controlling the water inlet state of the first water tank; or The water tank assembly also includes a floating liquid level switch installed in conjunction with the first water tank, which is configured to trigger a control signal, wherein the control signal is used to control the working state of a water inlet valve that supplies water to the first water tank.

8. The water tank assembly according to claim 1, It is characterized in that The second water tank includes a tank body and a cover body that cooperates with the tank body; the second water tank also includes a water outlet pipe that is arranged on the cover body and extends into the tank body.

9. A flushing system, It is characterized in that include: A water tank assembly as described in any one of claims 1-8, 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.

10. The flushing system according to claim 9, It is characterized in that It also includes one or more first liquid level detection elements 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 9, It is 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 9, It is 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.

13. The flushing system according to claim 9, It is 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.

14. A toilet, It is 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 9-13.

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