Water tank and cleaning equipment

Abstract

The present application discloses a water tank and a cleaning device, which belong to the field of smart home technology. The water tank includes: a water tank body, an air pressure detection component and an air pipe. The end of the air pipe located in the water storage chamber of the water tank body can be connected to the water storage chamber, and the end of the air pipe located outside the water storage chamber of the water tank body can be connected to the air inlet of the water pressure detection component. In this way, according to the principle of communicating vessels, when the water level in the water storage chamber is different, the air pressure inside the air pipe is also different. For this reason, after the air pressure detection component detects the air pressure inside the air pipe, the water level in the water storage chamber can be determined according to the air pressure inside the air pipe.

Description

Technical Field

[0001] The present application relates to the field of smart home technology, and in particular to a water tank and cleaning equipment. Background Art

[0002] With the development of science and technology, the functions of cleaning equipment (such as floor scrubbers or sweeping and mopping robots, etc.) are becoming more and more perfect, and the cleaning effect is getting better and better. Gradually, more and more families choose to use cleaning equipment to clean their homes. Using cleaning equipment to clean the home not only saves cleaning time, but also makes the floor cleaned by the cleaning equipment cleaner.

[0003] Current cleaning equipment usually includes a water tank, which can be a clean water tank for storing cleaning water or a sewage tank for storing sewage. The cleaning equipment can clean the floor with the cleaning water stored in the clean water tank. The cleaning equipment can also absorb the sewage remaining on the floor after cleaning the floor through the sewage tank.

[0004] In order to better detect the amount of liquid stored in the water tank, it is necessary to set a corresponding detection device in the water tank. However, the current detection device can only detect whether the liquid inside the water tank is at a specified level. For example, for a clean water tank, a detection device can usually be set at the bottom of the clean water tank, and this detection device can detect whether the liquid level of the liquid stored in the clean water tank is lower than the specified minimum level. For another example, for a sewage tank, a detection device can usually be set at the top of the sewage tank, and this detection device can detect whether the liquid level of the liquid stored in the sewage tank is higher than the specified maximum level. For this reason, the current cleaning equipment cannot accurately obtain the liquid level height of the liquid inside the water tank in real time, resulting in low reliability of the cleaning equipment. Utility Model Content

[0005] The embodiment of the present application provides a water tank and a cleaning device. The problem of low reliability of cleaning devices in the prior art can be solved. The technical solution is as follows:

[0006] In one aspect, a water tank is provided, comprising: a water tank body, an air pressure detection component and an air pipe;

[0007] The water tank body has a water storage cavity and a connecting through hole communicating with the water storage cavity;

[0008] The air pressure detection component is fixedly connected to the outer surface of the water tank body, and the air pressure detection component has an air inlet detection port;

[0009] A portion of the air pipe is located in the water storage cavity, and another portion of the air pipe extends out of the water storage cavity through the connecting through hole, and an end portion of the air pipe located in the water storage cavity is communicated with the water storage cavity, and an end portion of the air pipe located outside the water storage cavity is communicated with the air inlet detection port;

[0010] Wherein, the air pressure detection component is used to detect the air pressure inside the air pipe, so as to determine the water level in the water storage chamber according to the air pressure inside the air pipe.

[0011] Optionally, the water tank body further has a first air hole connected to the water storage chamber, and the water storage chamber is connected to the outside through the first air hole.

[0012] Optionally, the end of the air pipe located in the water storage chamber has a second air hole, and the air pipe is connected to the water storage chamber through the second air hole.

[0013] Optionally, the end of the second air hole in the air pipe faces the bottom of the water storage chamber, and there is a gap between the end of the second air hole in the air pipe and the bottom of the water storage chamber.

[0014] Optionally, the air pressure detection assembly includes: an air pressure detector body fixed on the outer surface of the water tank body, and a detection pipeline connected to the air pressure detector body, the opening of the detection pipeline facing away from the air pressure detector body is the air inlet detection port, and the detection pipeline is connected to the end of the air pipe located outside the water storage chamber.

[0015] Optionally, the water tank further includes: a sealing member, wherein the sealing member is fixed at a connection between the detection pipeline and the air pipe.

[0016] Optionally, the air pressure detection component further includes: a connecting cable electrically connected to the air pressure detector body, wherein an end of the connecting cable facing away from the air pressure detector body is used for communication connection with a controller in the cleaning device.

[0017] Optionally, the air pressure detection assembly is fixed on the top of the water tank body, and the top of the water tank body has a first air hole and the connecting through hole;

[0018] Alternatively, the water tank body includes: a box body and a cover body; the box body has the water storage cavity, and an opening connected to the water storage cavity, and the cover body is rotatably connected to the box body at the opening; wherein the air pressure detection component is fixed on the outer wall of the box body and is distributed at a position close to the opening; the outer wall of the box body has the connecting through hole, and the cover body has a first air hole; after the cover body is rotated toward the box body to seal the opening, the water storage cavity is connected to the outside through the first air hole.

[0019] Optionally, the water tank body also has a water channel opening connected to the water storage chamber, and the water channel opening is used to connect with a water pump in the cleaning equipment, and the water pump is used to: inject liquid into the water storage chamber through the water channel opening, and / or, discharge the liquid in the water storage chamber through the water channel opening.

[0020] On the other hand, a cleaning device is provided, comprising: a device body, and a water tank connected to the device body, wherein the water tank is the water tank described above.

[0021] The beneficial effects brought by the technical solution provided by the embodiment of the present application include at least:

[0022] A water tank includes: a water tank body, an air pressure detection component and an air pipe. The end of the air pipe located in the water storage chamber of the water tank body can be connected to the water storage chamber, and the end of the air pipe located outside the water storage chamber of the water tank body can be connected to the air inlet of the water pressure detection component. In this way, according to the principle of communicating vessels, when the water level in the water storage chamber is different, the air pressure inside the air pipe is also different. For this reason, after the air pressure detection component detects the air pressure inside the air pipe, the water level in the water storage chamber can be determined according to the air pressure inside the air pipe. In this way, after the water tank is installed in a cleaning device, the cleaning device can detect any water level in the water storage chamber in real time and accurately through the air pressure detection component, so that the reliability of the cleaning device is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a structural schematic diagram of a water tank provided in an embodiment of the present application;

[0025] Figure 2 yes Figure 1 The internal structure schematic diagram of the water tank shown;

[0026] Figure 3 yes Figure 2 A partial enlarged view of the water tank is shown;

[0027] Figure 4 is a schematic structural diagram of another water tank provided in an embodiment of the present application;

[0028] Figure 5 yes Figure 4 The internal structure schematic diagram of the water tank shown;

[0029] Figure 6 It is a structural schematic diagram of another water tank provided in an embodiment of the present application. DETAILED DESCRIPTION

[0030] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0031] A water tank provided in an embodiment of the present application can be installed in a cleaning device, and this water tank can be used as a clean water tank to store cleaning water for cleaning the floor, and this water tank can also be used as a sewage tank to store sewage after the cleaning device absorbs the water stains remaining on the floor.

[0032] Please refer to Figure 1 , Figure 1 1 is a schematic diagram of the structure of a water tank provided in an embodiment of the present application. The water tank 000 may include: a water tank body 100, an air pressure detection component 200 and an air pipe 300.

[0033] To see the internal structure of the water tank 000 more clearly, please refer to Figure 2 , Figure 2 yes Figure 1 The water tank body 100 in the water tank 000 may have a water storage chamber 100a and a connecting through hole 100b communicating with the water storage chamber 100a.

[0034] The air pressure detection assembly 200 in the water tank 000 can be fixed on the outer surface of the water tank body 100, and the air and water pressure detection assembly 200 has an air inlet (not marked in the figure).

[0035] A portion of the air pipe 300 in the water tank 000 may be located in the water tank 100a of the water tank body 100, and another portion of the air pipe 300 may extend out of the water storage chamber 100a through the connecting through hole 100b of the water tank body 100. The end of the air pipe 300 located in the water storage chamber 100a of the water tank body 100 may be communicated with the water storage chamber 100a, and the end of the air pipe 300 located outside the water storage chamber 100a of the water tank body 100 may be communicated with the air inlet of the water pressure detection assembly 200. In the present application, after the end of the air pipe 300 located outside the water storage chamber 100a is communicated with the air inlet of the water pressure detection assembly 200, the water pressure detection assembly 200 may detect the air pressure inside the air pipe 300.

[0036] In the embodiment of the present application, the air pressure detection component 200 in the water tank 000 detects the air pressure inside the air pipe 300, and the water level inside the water storage chamber 100a of the water tank body 100 can be determined according to the air pressure inside the air pipe 300. It should be noted that the water level inside the water storage chamber 100a in the present application refers to: the liquid level of the liquid stored inside the water storage chamber 100a.

[0037] In this case, when the water storage chamber 100a of the water tank body 100 stores different amounts of water, the water level in the water storage chamber 100a is also different. Since the end of the air pipe 300 located in the water storage chamber 100a is connected to the water storage chamber 100a, and the end of the air pipe 300 located outside the water storage chamber 100a is sealed relative to the outside, it is connected to the air pressure detection component 200. Therefore, according to the principle of communicating vessels, when the water level in the water storage chamber 100a is different, the air pressure inside the air pipe 300 is also different. For this reason, after the air pressure detection component 200 detects the air pressure inside the air pipe 300, the water level in the water storage chamber 100a can be determined according to the air pressure inside the air pipe 300. In this way, after the water tank 000 is installed in the cleaning equipment, the cleaning equipment can detect any water level in the water storage chamber 100a in real time and accurately through the air pressure detection component 200, so that the reliability of the cleaning equipment is high.

[0038] In summary, the water tank provided in the embodiment of the present application includes: a water tank body, an air pressure detection component and an air pipe. The end of the air pipe located in the water storage chamber of the water tank body can be connected to the water storage chamber, and the end of the air pipe located outside the water storage chamber of the water tank body can be connected to the air inlet of the water pressure detection component. In this way, according to the principle of communicating vessels, when the water level in the water storage chamber is different, the air pressure inside the air pipe is also different. For this reason, after the air pressure detection component detects the air pressure inside the air pipe, the water level in the water storage chamber can be determined according to the air pressure inside the air pipe. In this way, after the water tank is installed in the cleaning equipment, the cleaning equipment can detect any water level in the water storage chamber in real time and accurately through the air pressure detection component, so that the reliability of the cleaning equipment is higher.

[0039] In this application, if Figure 1 and Figure 2 As shown, the water tank body 100 in the water tank 000 may also have a first air hole 100c communicating with the water storage chamber 100a. The water storage chamber 100a may be communicated with the outside through the first air hole 100c.

[0040] Here, the first air hole 100c of the water tank body 100 can be arranged on a side of the water tank body 100 away from the bottom. Therefore, the space above the liquid level of the stored liquid in the water storage chamber 100a can be connected to the outside through the first air hole 100c, so that the air pressure of the space above the liquid level of the stored liquid in the water storage chamber 100a is the atmospheric pressure of the outside.

[0041] In the embodiments of the present application, Figure 2 As shown, the end of the air pipe 300 in the water tank 000 located in the water tank 100a has a second air hole 300a, and the air pipe 300 can be connected with the water tank 100a through the second air hole 300a.

[0042] In the present application, the end of the air pipe 300 where the second air hole 300a is set may face the bottom of the water storage chamber 100a, and there is a gap between the end of the air pipe 300 where the second air hole 300a is set and the bottom of the water storage chamber 100a.

[0043] Here, by providing a gap between the end of the second air hole 300a provided in the air pipe 300 and the bottom of the water storage chamber 100a, it can be ensured that the air pipe 300 can communicate with the water storage chamber 100a through the second air hole 300a.

[0044] In the present application, the end of the air pipe 300 away from the second air hole 300a is not connected to the outside, and is connected to the air pressure detection component 200 through the air inlet of the air pressure detection component 200. Therefore, the air pressure inside the air pipe 300 is not equal to the external atmospheric pressure, and the air pressure inside the air pipe 300 is usually greater than the external atmospheric pressure.

[0045] In this case, if Figure 3 As shown, Figure 3 yes Figure 2 The partially enlarged view of the water tank shown shows that after the liquid is stored in the water storage chamber 100a of the water tank body 100, the liquid stored in the water storage chamber 100a can flow into the air pipe 300 away from the second air hole 300a through the air pipe 300, but the liquid level of the liquid flowing into the air pipe 300 will be lower than the water level in the water storage chamber 100a.

[0046] According to the communicating vessel principle, the air pressure P1 inside the air pipe 300 satisfies the following relationship:

[0047] P1=P0+ρg(Hh) (1)

[0048] Among them, P1 represents the air pressure inside the air pipe 300; P0 represents the external atmospheric pressure; ρ represents the density of the liquid stored in the water storage chamber 100a; g represents the acceleration of gravity; H represents the water level in the water storage chamber 100a; h represents the vertical distance between the end of the second air hole 300a set in the air pipe 300 and the bottom of the water storage chamber 100a.

[0049] Here, the external atmospheric pressure P0, the density ρ of the liquid stored in the water storage chamber 100a, and the vertical distance h of the gap between the end of the second air hole 300a in the air pipe 300 and the bottom of the water storage chamber 100a are all fixed parameters acquired in advance. The air pressure P1 inside the air pipe 300 will change with the change of the water level H in the water storage chamber 100a, but the air pressure P1 inside the air pipe 300 can be measured by the air pressure detection component 200.

[0050] Therefore, after measuring the air pressure P1 inside the air pipe 300 through the air pressure detection component 200, the water level H in the water storage chamber 100a can be obtained.

[0051] For example, the above formula (1) can be transformed to obtain the following formula:

[0052]

[0053] In this case, after the air pressure P1 inside the air pipe 300 is measured by the air pressure detection component 200, the water level H in the water storage chamber 100a can be calculated by the above formula (2).

[0054] It should be noted that when the air pressure P1 inside the air pipe 300 measured by the air pressure detection component 200 is equal to the external atmospheric pressure P0, it means that the water level H inside the water storage chamber 100a is lower than or equal to the vertical distance h of the gap between the end of the air pipe 300 where the second air hole 300a is set and the bottom of the water storage chamber 100a. The air pipe 300 can be connected to the outside world through the second air hole 300a and the space above the liquid surface in the water storage chamber 100a. Therefore, the air pressure P1 inside the air pipe 300 will be equal to the external atmospheric pressure P0.

[0055] In this case, in order to ensure that the lower limit of the water level height of the water storage chamber 100a detected by the air pressure detection component 200 is small, so as to ensure that the present application can identify a wider range of water level heights, it is necessary to ensure that the vertical distance h of the gap between the end of the second air hole 300a provided in the air pipe 300 and the bottom of the water storage chamber 100a is small. For example, the vertical distance h of the gap between the end of the second air hole 300a provided in the air pipe 300 and the bottom of the water storage chamber 100a can be less than or equal to 1 cm. For example, the vertical distance h of the gap between the end of the second air hole 300a provided in the air pipe 300 and the bottom of the water storage chamber 100a can be equal to 0.1 mm, so that the lower limit of the water level height of the water storage chamber 100a detected by the air pressure detection component 200 is 0.1 mm.

[0056] Optional, such as Figure 4 As shown, Figure 4 The air pressure detection assembly 200 in the water tank 000 may include: an air pressure detector body 201 fixed on the outer surface of the water tank body 100 , and a detection pipeline 202 connected to the air pressure detector body 201 .

[0057] The detection pipeline 202 in the air pressure detection assembly 200 has an air inlet of the air pressure detection assembly 200 away from the air pressure detector body 201. The detection pipeline 202 in the air pressure detection assembly 200 can be connected to the end of the air pipe 300 located outside the water storage chamber 100a.

[0058] In this case, the air pressure detector body 201 in the air pressure detection assembly 200 can be connected to the end of the air pipe 300 located outside the water storage chamber 100a through the detection pipeline 202, so that the air pressure detector body 201 can detect the air pressure inside the air pipe 300.

[0059] In the embodiments of the present application, Figure 5 As shown, Figure 5 yes Figure 4 The water tank 000 may further include a sealing member 400 . Here, the sealing member 400 in the water tank 000 may be fixed at the connection between the detection pipeline 202 and the air pipe 300 in the air pressure detection assembly 200 .

[0060] In this way, the connection between the detection pipeline 202 and the trachea 300 can be sealed by the seal 400, so that the air pressure detector body 201 in the pressure detection component 200 has a higher accuracy when detecting the air pressure inside the trachea 300.

[0061] Optional, such as Figure 4 and Figure 5As shown, the air pressure detection assembly 200 in the water tank 000 may also include: a cable 203 electrically connected to the air pressure detector body 201. The end of the cable 203 in the air pressure detection assembly 200 away from the air pressure detector body 201 is used for communication connection with the controller in the cleaning device.

[0062] Exemplarily, after the water tank 000 provided in the embodiment of the present application is installed in the cleaning device, the cable 203 in the air pressure detection component 200 can be connected to the controller in the cleaning device for communication. In this way, after the air pressure detector body 201 in the air pressure detection component 200 detects the air pressure inside the air pipe 300, the air pressure detector body 201 can send the detected air pressure value to the controller in the cleaning device through the cable 203 connected thereto, so that the controller in the cleaning device can obtain the air pressure inside the air pipe 300. Subsequently, the controller in the cleaning device can calculate the water level in the water storage chamber 100a in the water tank 000 according to the air pressure inside the air pipe 300 and in combination with the above formula (2).

[0063] In the embodiment of the present application, the water tank 000 has various forms. For example, the water tank 000 may be an integrated water tank, which can be installed in the cleaning device in a fixed manner. For another example, the water tank 000 may be a split water tank, which can be installed in the cleaning device in a detachable manner. And for water tanks 000 of different forms, the relative positions of the air pressure detection component 200 and the water tank body 100 in the water tank 000 are also different. For this reason, the embodiment of the present application will be schematically described by taking the following two optional solid line methods as examples.

[0064] A first optional implementation method is when the water tank 000 is an integrated water tank, such as Figure 4 As shown, the air pressure detection assembly 200 in the water tank 000 can be fixed on the top of the water tank body 100, and the top of the water tank body 100 can have a first air hole 100c and a connecting hole 100b that are connected to the water storage chamber 100a.

[0065] A second optional implementation method is when the water tank 000 is a split water tank, such as Figure 6 As shown, Figure 6 1 is a schematic diagram of the structure of another water tank provided in an embodiment of the present application. The water tank body 100 in the water tank 000 may include: a box body 101 and a cover body 102. Here, the box body 101 in the water tank body 100 may have a water storage cavity 100a and an opening (not marked in the figure) connected to the water storage cavity 100a. The cover body 102 in the water tank body 100 may be rotatably connected to the box body 101 at the opening.

[0066] In this case, the air pressure detection assembly 200 in the water tank 000 can be fixed on the outer wall of the box body 101 in the water tank body 100, and the air pressure detection assembly 200 can be distributed at a position close to the opening of the box body 101. Among them, the outer wall of the box body 101 in the water tank body 100 can have a connecting through hole 100b, and the cover body 102 in the water tank body 100 can have a first air hole 100c. In this case, after the cover body 102 in the water tank body 100 rotates toward the box body 101 to seal the opening of the box body 101, the water storage chamber 100a of the box body 101 can be connected to the outside through the first air hole 100c.

[0067] Here, by fixing the air pressure detection assembly 200 on the outer side wall of the box body 101 in the water tank body 100, it can be ensured that the rotation between the cover body 102 and the box body 101 will not interfere with the distribution of the air pressure detection assembly 200. In addition, by providing the first air hole 100c for connecting the water storage chamber 100a with the outside on the cover body 102 in the water tank body 100, it can be ensured that the liquid stored in the water storage chamber 100a will not leak outward through the first air hole 100c.

[0068] It should be noted that when the water tank 000 is a split type water tank, when the water tank 000 is used as a clean water tank, if the user needs to inject cleaning water into the water storage chamber 100a, the user can control the cover 102 to rotate in a direction away from the box 101 so that the opening of the box 101 can be exposed, so that the user can inject cleaning water into the water storage chamber 101 through the opening of the box 101, and then the user can control the cover 102 to rotate in a direction toward the box 101 so that the cover 102 can seal the opening of the box 101. When the water tank 000 is used as a sewage tank, if the user needs to discharge the sewage stored in the water storage chamber 100a, the user can control the cover 102 to rotate in a direction away from the box 101 so that the opening of the box 101 can be exposed, so that the user can pour out the sewage stored in the water storage chamber 101 through the opening of the box 101.

[0069] Optionally, the water tank body 100 in the water tank 000 may also have a waterway opening (not marked in the figure) communicating with the water storage chamber 100a. The waterway opening is used to communicate with a water pump in the cleaning device. The water pump in the cleaning device is used to: inject liquid into the water storage chamber 100a through the waterway opening of the water tank body 100, and / or, discharge the liquid in the water storage chamber through the waterway opening.

[0070] Exemplarily, when the water tank 000 is used as a clean water tank, the water tank body 100 may have a single water channel opening, and after the water tank 000 is installed in the cleaning equipment, the water pump in the cleaning equipment may inject cleaning water into the water storage chamber 100a of the water tank 000 through this water channel opening.

[0071] When the water tank 000 is used as a sewage tank, the water tank body 100 may have two waterway openings, which may be respectively: a water inlet and a drain outlet. After the water tank 000 is installed in the cleaning equipment, the drainage pump of the cleaning equipment may be connected to the water storage chamber 100a through the drain outlet, and the negative pressure generating device of the cleaning equipment may be connected to 100a through the water inlet. In this way, the negative pressure generating device in the cleaning equipment may inject the sewage remaining on the ground into the water storage chamber 100a of the water tank 000 through the water inlet; the drainage pump in the cleaning equipment may discharge the sewage stored in the water storage chamber 100a of the water tank 000 through the drain outlet.

[0072] In summary, the water tank provided in the embodiment of the present application includes: a water tank body, an air pressure detection component and an air pipe. The end of the air pipe located in the water storage chamber of the water tank body can be connected to the water storage chamber, and the end of the air pipe located outside the water storage chamber of the water tank body can be connected to the air inlet of the water pressure detection component. In this way, according to the principle of communicating vessels, when the water level in the water storage chamber is different, the air pressure inside the air pipe is also different. For this reason, after the air pressure detection component detects the air pressure inside the air pipe, the water level in the water storage chamber can be determined according to the air pressure inside the air pipe. In this way, after the water tank is installed in the cleaning equipment, the cleaning equipment can detect any water level in the water storage chamber in real time and accurately through the air pressure detection component, so that the reliability of the cleaning equipment is higher.

[0073] The present application also provides a cleaning device. The cleaning device may be a floor scrubber or a sweeping and mopping robot. The cleaning device may include: a device body, and a water tank connected to the device body. The water tank may be the water tank in the above embodiment. For example, the water tank may be Figure 1 , Figure 4 or Figure 6 Here, the cleaning device can detect the water level in the water storage chamber of the water tank through the air pressure detection component in the water tank.

[0074] In the present application, the device body in the cleaning device can be used to clean the floor, and the cleaning device may not be provided with a base station that cooperates with the device body, or may be provided with a base station that cooperates with the device body. Here, in the case where the cleaning device does not include a base station, the water tank in the above embodiment can be directly installed inside the device body; in the case where the cleaning device includes a base station that cooperates with the device body, the water tank in the above embodiment can be installed in the base station, or it can be installed in the device body, and the embodiments of the present application will not elaborate on this. Among them, the base station can be used to charge the device body, can also be used to inject clean water into the interior of the device body, and can also be used to absorb pollutants (for example, sewage or garbage, etc.) stored inside the device body.

[0075] For example, when a user wants to know the current water level in the water storage chamber of a water tank, the user only needs to trigger a corresponding instruction on the cleaning device, and the cleaning device can detect the current water level in the water storage chamber through the air pressure detection component in the water tank.

[0076] In another possible implementation, when the water tank in the cleaning device is used as a clean water tank, the cleaning device can detect in real time through the air pressure detection component whether the water level in the water storage chamber is lower than the first preset threshold. After the cleaning device detects that the water level in the water storage chamber is lower than the first preset threshold, the cleaning device can issue a prompt message to indicate to the user that the cleaning water currently stored in the water tank is insufficient.

[0077] When the water tank in the cleaning device is used as a sewage tank, the cleaning device can detect in real time through the air pressure detection component whether the water level in the water storage chamber is higher than the second preset threshold. After the cleaning device detects that the water level in the water storage chamber is higher than the second preset threshold, the cleaning device can issue a prompt message to indicate to the user that there is too much sewage stored in the current water tank.

[0078] The second preset threshold in the above embodiment may be much larger than the first preset threshold.

[0079] In the present application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless otherwise clearly defined.

[0080] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A water tank, characterized in that: include: Water tank body, air pressure detection assembly and air pipe; The water tank body has a water storage cavity and a connecting through hole communicating with the water storage cavity; The air pressure detection component is fixedly connected to the outer surface of the water tank body, and the air pressure detection component has an air inlet detection port; A portion of the air pipe is located in the water storage cavity, and another portion of the air pipe extends out of the water storage cavity through the connecting through hole, and an end portion of the air pipe located in the water storage cavity is communicated with the water storage cavity, and an end portion of the air pipe located outside the water storage cavity is communicated with the air inlet detection port; Wherein, the air pressure detection component is used to detect the air pressure inside the air pipe, so as to determine the water level in the water storage cavity according to the air pressure inside the air pipe; The water tank body also has a first air hole connected to the water storage chamber, and the water storage chamber is connected to the outside through the first air hole.

2. The water tank according to claim 1, characterized in that: The end of the air pipe located in the water storage cavity has a second air hole, and the air pipe is connected with the water storage cavity through the second air hole.

3. The water tank according to claim 2, characterized in that: The end of the air pipe where the second air hole is arranged faces the bottom of the water storage cavity, and there is a gap between the end of the air pipe where the second air hole is arranged and the bottom of the water storage cavity.

4. The water tank according to claim 1, characterized in that The air pressure detection assembly includes: an air pressure detector body fixed on the outer surface of the water tank body, and a detection pipeline connected to the air pressure detector body, the opening of the detection pipeline away from the air pressure detector body is the air inlet detection port, and the detection pipeline is connected to the end of the air pipe located outside the water storage cavity.

5. The water tank according to claim 4, characterized in that: The water tank further comprises: a sealing member, wherein the sealing member is fixed at a connection between the detection pipeline and the air pipe.

6. The water tank according to claim 4, characterized in that The air pressure detection component also includes: a connection cable electrically connected to the air pressure detector body, and an end of the connection cable away from the air pressure detector body is used for communication connection with a controller in the cleaning device.

7. The water tank according to any one of claims 1 to 6, characterized in that: The air pressure detection assembly is fixed on the top of the water tank body, and the top of the water tank body has a first air hole and the connecting through hole; Alternatively, the water tank body includes: a box body and a cover body; the box body has the water storage cavity, and an opening connected to the water storage cavity, and the cover body is rotatably connected to the box body at the opening; wherein the air pressure detection component is fixed on the outer wall of the box body and is distributed at a position close to the opening; the outer wall of the box body has the connecting through hole, and the cover body has a first air hole; after the cover body is rotated toward the box body to seal the opening, the water storage cavity is connected to the outside through the first air hole.

8. The water tank according to any one of claims 1 to 6, characterized in that: The water tank body also has a water channel opening connected to the water storage chamber, and the water channel opening is used to communicate with a water pump in the cleaning equipment. The water pump is used to: inject liquid into the water storage chamber through the water channel opening, and / or discharge the liquid in the water storage chamber through the water channel opening.

9. A cleaning device, characterized in that: include: An equipment body, and a water tank connected to the equipment body, wherein the water tank is the water tank according to any one of claims 1 to 8.

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