A tank assembly, a flushing system and a toilet

Abstract

A water tank assembly, a flushing system and a toilet, comprising: a first water tank; a second water tank arranged in the first water tank and configured to float with the water level of the first water tank; the second water tank is provided with a communication hole communicated with the first water tank and a control valve for controlling the opening and closing of the communication hole; the control valve is configured to open or close the communication hole under the pressure difference between the first water tank and the second water tank, so as to realize water supplement or stop of the first water tank to the second water tank.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of bathroom, in particular to a water tank assembly, a flushing system and a toilet. BACKGROUND

[0002] The control of the waterway of the intelligent toilet is usually in a point-to-point and line-to-line manner. After the waterway is branched from the angle valve, the flushing waterway of the intelligent toilet and the human body cleaning waterway of the intelligent toilet cover are used separately. The independent control of the waterway has corresponding advantages, such as simple connection logic and no need to consider other associated application relationships. However, it also has disadvantages, such as a large number of connecting pipelines between modules and a large number of connecting parts, which results in a large space requirement for installation.

[0003] In addition, the independent control of the waterway also causes the single execution of the functions of the related functional devices, which cannot effectively improve the utilization rate of the devices and causes the waste of the resources of the control board. For example, the functions of controlling the water inlet of the human body cleaning waterway of the intelligent toilet cover and controlling the flushing system of the intelligent toilet are the same, and the functions of the two are usually not used at the same time. However, after being independent, the functions executed by each are very simple, and two groups of water inlet modules are needed to support in a waterway system, which causes the waste of resources. SUMMARY

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

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

[0006] a first water tank;

[0007] a second water tank arranged in the first water tank and configured to float with the water level change of the first water tank; the second water tank is provided with a communication hole communicated with the first water tank and a control valve for controlling the opening and closing of the communication hole; the control valve 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, so as to realize water replenishment or stop of the first water tank to the second water tank.

[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 the 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 that 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 comprises a water storage tank for storing water and a hollow floating tank, which is arranged 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 guide the lifting of the second water tank, and the second water tank is arranged to be capable of lifting 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 arranged in the first water tank and extending along the depth direction of the first water tank, and a sleeve tube arranged in the second water tank and movably sleeved on the guide column.

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

[0015] In an exemplary embodiment, the communication hole is arranged on the bottom wall of the second water tank, and the bottom of the second water tank is provided with a cover that surrounds the communication hole.

[0016] In an exemplary embodiment, the water tank assembly further comprises a buoyancy water inlet valve cooperatively mounted with the first water tank and controlling the water inlet state of the first water tank; or,

[0017] The water tank assembly further comprises a floating liquid level switch cooperatively mounted with the first water tank, which is arranged to trigger a control signal for controlling the working state of the water inlet valve for supplying water to the first water tank.

[0018] In an exemplary embodiment, the second water tank comprises a tank body and a cover cooperatively covering the tank body, and the second water tank further comprises a water outlet pipe arranged on the cover and extending into the tank body.

[0019] The present application provides a flushing system comprising: a water tank assembly according to any of the above embodiments, 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.

[0020] In an exemplary embodiment, the flushing system further comprises one or more first liquid level detection elements arranged in the first tank body of the water tank assembly, and a controller connected to the first liquid level detection elements and the human body cleaning system.

[0021] The controller is configured to control the human body cleaning system to stop running when the first water level detecting element detects that the water level of the first water tank is lower than a predetermined first water level or is lower than the predetermined first water level for a predetermined time, the predetermined first water level being higher than or equal to the lowest water level of the second water tank.

[0022] In an exemplary embodiment, the flushing system further comprises a second water level detecting element arranged in the second tank of the water tank assembly respectively, and a controller connected to the second water level detecting element and the human body cleaning system.

[0023] The controller is configured to control the human body cleaning system to stop running when the second water level detecting element detects that the water level of the second water tank is lower than a second predetermined water level or is lower than the second predetermined water level for a predetermined time.

[0024] In an exemplary embodiment, the human body cleaning system comprises a first pressurizing device, a heating device and a cleaning device, the first pressurizing device pressurizes the water in the second water tank and delivers the water to the cleaning device to clean the human body, and the heating device is used to heat the water in the second water tank and supply the water to the cleaning device.

[0025] In an exemplary embodiment, the toilet flushing system comprises a second pressurizing device connected to the first water tank of the water tank assembly and a water path distribution valve, the water path 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 or a flushing system as described in any of the above embodiments mounted on the toilet body.

[0027] Compared with the related art, the first water tank of the water tank assembly of the present application is provided with the second water tank inside the first water tank, the second water tank can float with the water level change of the first water tank and realize water replenishment through water pressure difference, so that the second water tank does not need to be designed with a water inlet component separately, thereby reducing the complexity of connection and control, and reducing cost and saving space.

[0028] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. Other advantages of the present application can be realized and obtained by means of the solutions described in the specification and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0029] The accompanying drawings are included to provide an understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, to explain the technical solutions of the present application, and do not constitute a limitation on the technical solutions of the present application.

[0030] Figure 1 Figure 1 is an overall perspective view of a water tank assembly according to an embodiment of the present application;

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

[0032] Figure 3 Figure 3 is a cross-sectional view of a second water tank descending state of the water tank assembly according to an embodiment of the present application;

[0033] Figure 4 Figure 4 is a perspective exploded view of the water tank assembly according to an embodiment of the present application;

[0034] Figure 5 Figure 5 is a perspective view of another embodiment of the buoyancy water inlet control device according to an embodiment of the present application;

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

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

[0037] Figure 8 Figure 8 is a schematic view of a third water inlet state of the water tank assembly according to an embodiment of the present application;

[0038] Figure 9 Figure 9 is a schematic view of a fourth water inlet state of the water tank assembly according to an embodiment of the present application;

[0039] Figure 10 Figure 10 is a perspective exploded view of a toilet according to an embodiment of the present application;

[0040] Figure 11 Figure 11 is a perspective view of a toilet body and flushing system connection according to an embodiment of the present application;

[0041] Figure 12 Figure 12 is a human body washing water path connection view of the flushing system according to an embodiment of the present application;

[0042] Figure 13 Figure 13 is a toilet flushing system connection view of the flushing system according to an embodiment of the present application.

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

[0044] The present application describes a number of embodiments, but the description is exemplary rather than limiting and it will be apparent to those of ordinary skill in the art that numerous more embodiments and implementations are possible within the scope of the embodiments described in the present application. Although a number of possible combinations of features have been set forth in the drawings and discussed above, many other combinations are possible. Unless specifically intended otherwise, any feature or element of any embodiment can be used with any other feature or element of any other embodiment, or in any other implementation, to form another embodiment within the scope of the application. As used in this specification and claims, the term "or" is intended to mean an inclusive "or" rather than an exclusive "or." That is, unless specified otherwise, or clear from the context, the phrase "X employs A or B" is intended to mean that the

[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 herein can also be combined with any conventional features or elements to form unique inventive solutions falling within the scope of the claims. Any feature or element of any embodiment can also be combined with features or elements from other inventive solutions to form another unique inventive solution falling within the scope of the claims. Therefore, it is to be understood that any feature shown and / or discussed in the present application can be implemented alone or in any suitable combination. Accordingly, except as otherwise limited by the claims and equivalents thereof, embodiments are not limited by other limitations. Moreover, various modifications and changes can be made thereto within the scope of the claims.

[0046] Furthermore, in describing representative embodiments, the specification can have presented the method and / or process as a particular sequence of steps. However, to the extent that the method or process depends on the performance of certain steps, the method or process is not limited to the order of steps presented nor to performing some specific steps before other specific steps have been completed. Other steps can be performed in between them that are not presented in this specification. Additionally, one of ordinary skill in the art can appreciate that steps can be added to the above described

[0047] As shown in Figures 1-10 The water tank assembly 100 provided by the embodiments of the present application can be used in a toilet and supply water for the toilet, wherein the toilet can be a sitting toilet, a squatting toilet, etc.

[0048] As shown in Figures 2-4 The water tank assembly 100 provided by the embodiments of the present application comprises 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 be able to float with the water level change of the first water tank 1; the second water tank is provided with a communication hole 20 communicated with the first water tank 1 and a control valve 21 controlling the opening and closing of the communication hole 20. The control valve 21 is arranged to be able to open or close the communication hole 20 under the action of the water pressure differential between the first water tank 1 and the second water tank 2, so as to realize water replenishment or stop of the first water tank 1 for the second water tank 2.

[0049] The first water tank 1 of the water tank assembly 100 provided by the embodiments of the present application is arranged by arranging the second water tank 2 in the interior of the first water tank 1, the second water tank 2 is able to float with the water level change of the first water tank 1 and realize water replenishment through the water pressure differential, so that the second water tank 2 does not have to be designed with a water inlet component separately, thereby being able to reduce the complexity of connection and control, and reduce cost and save space.

[0050] As shown in Figure 3 The first water tank 1 and the second water tank 2 are provided with a guide structure matched with each other to realize the lifting and guiding of the second water tank 2. The guide structure in the embodiment comprises a guide column 10 arranged in the first water tank 1 and extending along the depth direction of the first water tank, and an outer sleeve tube 203 arranged in the second water tank 2 and movably sleeved on the guide column. The water tank assembly 100 is arranged with the guide structure, so as to guide the second water tank 2 to perform lifting movement at a specific position under the action of water flow. In other embodiments, the guide structure can also be a guide plate arranged in the first water tank 1 to form a guide gap for the second water tank 2 to pass through, or a guide pull rope, etc., which are not limited herein.

[0051] As shown in Figure 3As shown, the second water tank 2 comprises a water storage tank 201 for storing water and a hollow floating tank 202 arranged to keep the second water tank 2 floating on water when the second water tank 2 has water or no water. The second water tank 2 of the water tank assembly 100 of the present application can keep the second water tank 2 floating on water even when the water storage tank 201 is full by arranging the floating tank 201. The floating tank 203 and the guide column 10 are arranged on two sides of the water storage tank 201 respectively.

[0052] As shown, the control valve 21 of the present embodiment can control the water in the first water tank 1 to flow into the second water tank 2, but the water in the second water tank 2 cannot flow back into the first water tank 1. The control valve 21 can be a check valve or a one-way valve, and is arranged to open or close the communication hole 20 under the 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 mechanism that can prevent water from flowing back into the first water tank 1, which is not limited herein. Figures 6-9 As shown, when the water pressure of the first water tank 1 is greater than the water pressure of the second water tank 2, at this time, the first water tank 1 has water, and the second water tank 2 has insufficient water storage, the control valve 21 opens the communication hole 20, so that the water in the first water tank 1 flows into the second water tank 2 to supplement the water of the second water tank 2.

[0053] Figure 6 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 of the first water tank 1 is insufficient, the control valve 21 closes the communication hole 20 to prevent the water of the second water tank 2 from flowing back into the first water tank 1. Figure 9 As shown, the communication hole 20 is arranged on the bottom wall of the second water tank 2, and the bottom of the second water tank 2 is provided with a cover 204 surrounding the communication hole 20. By arranging the communication hole 20 on the bottom wall of the second water tank 2, the water in the second water tank 2 can be timely supplemented and not excessively reduced due to the decrease of water in the first water tank 1, and the cover 204 can concentrate the water flow, so that there is enough water pressure to resist the control valve 21 to open the communication hole 20.

[0054] Figure 3 As shown, the water tank assembly 100 further comprises one or more first liquid level detection elements 4 arranged in the first tank 1 and one or more second liquid level detection elements (not shown) arranged in the second tank 2. The first detection element 4 and the second detection element are respectively used to detect the liquid level of the first water tank 1 and the second water tank 2.

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

[0056] Figure 4 ​​​As shown, the second water tank 2 comprises a tank body 205 and a cover body 206 which cooperates with the tank body 205; the water tank assembly 100 further comprises a water outlet pipe 207 which is arranged on the cover body 206 and extends into the tank body 205. The second water tank 2 of the present embodiment can prevent dust and sundries from falling into the second water tank 2 by arranging the cover body 206, thereby ensuring the cleanliness of the second water tank 2.

[0057] As shown in the drawings, Figure 4 The water tank assembly 100 of the present embodiment further comprises a float water inlet valve 3 which cooperates with the first water tank 1 and controls the water inlet state of the first water tank 1, and the float water inlet valve 3 comprises a valve body 30 and a float 31 which cooperates with the valve body 30. The float water inlet valve can be a float valve, a ball valve or other control valve which controls the on-off state by using the principle of float. The float 31 can be a float or a ball which cooperates with the valve body 30 and can control the working state of the float water inlet valve. For example, when the float 31 is at a high water level, the float water inlet valve is controlled to be closed and the water inlet is stopped; when the float 31 is at a low water level, the float water inlet valve is controlled to be opened and the water inlet is started.

[0058] In one exemplary embodiment, as shown in the drawings, Figure 5 The water tank assembly 100 further comprises a float liquid level switch 3a which cooperates with the first water tank 1 and is arranged to be connected with a water inlet valve (not shown, which can be an electric control valve) which supplies water to the first water tank 1. The float liquid level switch 3a comprises a switch body 30a and a float 31 which is movably arranged on the switch body 30a and can float to trigger a control signal when the water level of the first water tank 1 changes, wherein the control signal is used to control the working state of the water inlet valve. For example, when the float 31 triggers a control signal which reaches a first liquid level (a preset high liquid level), a controller (not shown) which is connected with the water inlet valve can control the water inlet valve to be closed and the water supply to be stopped; when the float 31 triggers a control signal which reaches a second liquid level (a preset low liquid level) or when the water level is below the second liquid level for a first predetermined time, the controller controls the water inlet valve to be opened and the water inlet to be started. The specific control liquid level can be set according to the actual situation, which is not limited herein. The float water inlet valve 3 is taken as an example to describe the functions and effects of the water tank assembly 100 in detail.

[0059] As shown in the drawings, Figure 8 The float 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, and when the second water tank 1 is filled with water, the float 31 closes the float water inlet valve 3 and stops the water supply to the first water tank 1; as shown in the drawings, Figure 9 When the first water tank 1 is used and the water level drops, the float 31 opens the float water inlet valve 3 and starts the water supply to the first water tank 1.

[0060] As shown in the drawings, Figures 6-9As shown, in the initial state, there is no water in the first water tank 1 and the second water tank 2, and the float water inlet valve 3 is opened under the gravity of the float 31 or the action of the reset element, and the float water inlet valve 3 starts to fill water into 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 filled with water, the water pressure difference between the second water tank 2 and the first water tank 1 causes the water flow to open the control valve 21, and the water flows from the first water tank 1 into the second water tank 2 to fill the second water tank 2, and the second water tank 2 floats synchronously with the increase of the liquid level of the first water tank 1. When the second water tank 2 is filled with water, the water levels of the two water tanks are the same, the water pressure is balanced, and the control valve 21 closes the communication hole 20 to stop the water filling.

[0061] As shown in the figure, Figure 9 When the water in the first water tank 1 is used, the water level decreases, and the second water tank 2 decreases with the decrease of the water level, and the float water inlet valve 3 opens to fill 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 that in the first water tank 1, so that the control valve 21 keeps closing the communication hole 20. When the second water tank 2 is used, and the water pressure in the second water tank 2 is less than that in the first water tank 1, the first water tank 1 continues to fill the second water tank 2.

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

[0063] As shown in the figure, Figures 10-13 The embodiment of the present application also provides a closestool 200 including a closestool body, a water tank assembly 100 or a flushing system as described in any of the above embodiments mounted on the closestool 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 circle interface and the siphon interface of the closestool and 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 closestool and provide cleaning water. The water tank assembly 100 can keep the two water paths of the closestool 200 continuously supplying water.

[0065] As shown in the figure, Figures 11-13 The embodiment of the present application also provides a flushing system, which includes a water tank assembly 100, a closestool flushing system and a human body cleaning water path as described in any of the above embodiments.

[0066] The clean water channel comprises a first water pressure increasing device 61, a heating device 62 and a cleaning device 63. The first water pressure increasing device 61 increases the water pressure of the water in the second water tank 2 and then sends the water to the cleaning device 63 to clean the human body. The heating device 62 is used to heat the water in the second water tank 2 and then supply the water to the cleaning device 63. The cleaning device 63 is a device used to clean the human body. The specific structure can refer to the prior art, which will not be described here.

[0067] The toilet flushing system is connected with 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 comprises a second water pressure increasing device 71, a water channel distribution valve 72, a siphon nozzle 73 and a brush ring nozzle 74. The second water pressure increasing device 71 increases the water pressure of the water output by the first water tank 1, supplies the water to the water channel distribution valve 72, and then distributes the water to the siphon nozzle 73 and the brush ring nozzle 74 to flush the toilet body.

[0068] In an exemplary embodiment, the first water tank 1 can be provided with two first liquid level detection elements 4, one of which is used to detect the high liquid level of the first water tank 1, and the other of which is used to detect the low liquid level of the first water tank 1. The controller connected with the flushing system and the first liquid level detection element 4 detects whether the high liquid level is normal through the first detection element 4 for detecting the high liquid level, so as to determine whether the first water tank 1 is full of water (the high liquid level 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 through the liquid level detected by the first liquid level detection element 4 for detecting the low liquid level, so as to determine whether the second water tank 2 has water (the low liquid level is set at the bottom position of the first water tank 1). When the high liquid level is normal, the toilet flushing system and the human body cleaning system are normally started when receiving the flushing command and the cleaning command. 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 not normal (less than the predetermined first liquid level or less than the predetermined first liquid level for a predetermined time), the human body cleaning function is stopped, and a water shortage alarm is given to prevent the heating device 62 from being damaged due to dry burning. The predetermined first liquid level is higher than or equal to the minimum liquid level of the second water tank 2, so as to ensure that the second water tank 2 has water at the liquid level. Of course, one first liquid level detection element 4 can be provided to detect both the high liquid level and the low liquid level of the first water tank 1.

[0069] In another exemplary embodiment, the first water tank 1 can 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 is provided with a second liquid level detection element for detecting the liquid level of the second water tank 2. The flushing system can monitor the liquid 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, respectively. When receiving a flushing command, and the first liquid level detection element 4 detects that the liquid level is greater than or equal to a first predetermined liquid level, the controller connected with the flushing system and the first liquid level detection element 4 can start the toilet flushing system; when the liquid level is lower than the first predetermined liquid level, the toilet flushing system is not started. In addition, when receiving a cleaning command, the flushing system judges 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 judges whether the second water tank 2 has water. When the liquid level is normal (the liquid level is greater than or equal to a second predetermined liquid level), the controller connected with 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 draw the water stored in the second water tank 2 to provide the heating device 62 and the cleaning device 63 connected with the 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 perform a water shortage alarm to prevent the heating device 62 from being dry-burned and damaged.

[0070] The two water tanks of the flushing assembly 100 of the embodiment of the present application can respectively supply water to the flushing water path of the flushing system and the toilet flushing system, and can match the water supplement of different water use conditions of the two toilet flushing systems, thereby reducing the functional components, reducing the complexity of connection and control, and reducing the cost and saving the space.

[0071] In the description in the present application, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "edge", "opposite", "four corners", "periphery", "mouth structure" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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 indicated has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0072] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "connection", "direct connection", "indirect connection", "fixed connection", "installation", "assembly" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; the terms "installation", "connection", "fixed connection" can be directly connected, or indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0073] Although the embodiments disclosed in the present application are as above, the content described is only the embodiments adopted for the convenience of understanding the present application, and is not intended to limit the present application. Any person skilled in the art of the present application can make any modification and change in the form and details without departing from the spirit and scope of the present application disclosed, but the patent protection scope of the present application shall be subject to the appended claims.

Claims

1. A water tank assembly, characterized in that, include: First water tank; The second water tank is located inside the first water tank and is configured to float in response to changes in the water level of the first water tank. The second water tank is provided with a connecting hole that communicates with the first water tank and a control valve that controls the opening and closing of the connecting hole. The control valve is configured to open or close the connecting hole under the pressure difference between the first and second water tanks, so as to enable the first water tank to replenish water to 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, and is configured to open or close the connecting hole under the pressure difference between the first water tank and the second water tank. When the water pressure in the first water tank is greater than the water pressure in the second water tank, the control valve opens the connecting hole; When the water pressure in the first water tank is less than or equal to the water pressure in the second water tank, the control valve closes the connecting hole.

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

4. The water tank assembly according to claim 3, characterized in that, The first water tank and the second water tank are provided with guide structures that cooperate with each other to guide the second water tank to rise and fall. The second water tank is configured to move up and down under the guidance of the guide structures when the water level of the first water tank changes. The guide structure includes a guide post disposed inside the first water tank and extending along the depth direction of the first water tank, and an outer sleeve disposed in the second water tank and movably fitted onto the guide post.

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

6. The water tank assembly according to claim 1, characterized in that, The connecting hole is located on the bottom wall of the second water tank, and the bottom of the second water tank is provided with a cover surrounding the connecting hole.

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

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

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

10. The flushing system according to claim 9, characterized in that, It also includes one or more first liquid level detection elements disposed in the first tank 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 stop the human body cleaning system 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 lower than the predetermined first liquid level for a predetermined time. 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, characterized in that, It also includes a second liquid level detection element disposed in the second tank of the water tank assembly, and a controller connecting the second liquid level detection element and the human body cleaning system; The controller is configured to stop the human body cleaning system when the second liquid level detection element detects that the liquid level of the second water tank is lower than the second predetermined liquid level or lower than the second predetermined liquid level for a predetermined time.

12. The flushing system according to claim 9, characterized in that, 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 to clean the human body. The heating device heats the water in the second water tank and then supplies it to the cleaning device.

13. The flushing system according to claim 9, characterized in that, The toilet flushing system includes a second pressurizing device and a water distribution valve connected to a first water tank of the water tank assembly. The water distribution valve is configured to connect to the brush ring interface and the siphon interface of the toilet.

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

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