Water tank and cleaning equipment

Abstract

The utility model belongs to the technical field of cleaning equipment, and particularly relates to a water tank and cleaning equipment. According to the water tank, the second tank body with the first cavity is installed in the first tank body, the second cavity is formed between the second tank body and the first tank body, and therefore the water tank is provided with at least two cavities to achieve storage of cleaning liquid and dirty liquid; according to the water tank, the soft body part can be flexibly deformed, so that the volume ratio between the first cavity and the second cavity can be relatively changed, the liquid storage amount is guaranteed, space waste is avoided, and the cleaning effect of the water tank and small-size production of the water tank are guaranteed; the second box body is further provided with a hard body part, and the hard body part is stable in shape and structure and can serve as an installation carrier of parts such as functional mechanisms so as to provide stable installation space and support.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning equipment, in particular to a water tank and cleaning equipment. Background Art

[0002] Existing cleaning equipment generally needs to be equipped with a water tank, but the existing cleaning equipment generally arranges the clean water tank and the sewage tank independently. The dirty liquid generated after the clean liquid in the clean water tank is discharged for operation is sucked into the sewage tank. As the cleaning work proceeds, the clean liquid in the clean water tank gradually decreases, and the dirty liquid in the sewage tank gradually increases. The clean water tank and the sewage tank will not be filled at the same time, resulting in a waste of water tank volume space. The water tank usually occupies a large space in the cleaning equipment, resulting in a large size of the cleaning equipment, which easily limits the passability of the cleaning equipment and has high space requirements for the use environment, especially not conducive to use in a small space. However, if the water storage capacity is sacrificed and a small water tank is used to keep the cleaning equipment small, it will result in a small amount of clean water per unit area, or it will be necessary to frequently add clean liquid to the water tank of the cleaning equipment and discharge dirty liquid, resulting in a poor cleaning effect or user experience. Utility Model Content

[0003] The purpose of the utility model is to provide a water tank and a cleaning device, which can improve the space utilization and cleaning effect of the water tank and the cleaning device.

[0004] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a water tank, comprising:

[0005] a first housing; and

[0006] A second box body is installed in the first box body; the second box body has a first chamber, and the second chamber is formed between the outer wall of the second box body and the inner wall of the first box body;

[0007] Wherein, the second box body includes a hard part and a soft part, the hard part and the soft part are connected to form the first chamber, and the soft part can be deformed to change the volume ratio of the first chamber and the second chamber;

[0008] One of the first chamber and the second chamber is used to contain a clean liquid, and the other is used to contain a dirty liquid.

[0009] Optionally, the hardware part has a first accommodating area with a first opening at one end, the software part is arranged at the first opening, and the first accommodating area and the software part enclose the first chamber;

[0010] When the software part is recessed in the first accommodating area, the hardware part has a mounting part staggered from the software part, and the mounting part is used for mounting functional mechanisms of the first chamber and / or the second chamber.

[0011] Optionally, when the soft body part is not recessed in the first accommodating area, the soft body part has a second accommodating area with a second opening at one end, and the second opening of the soft body part is sealedly connected to the first opening of the hard body part; and the first accommodating area and the second accommodating area are communicated to form the first chamber.

[0012] Optionally, when the software part is not recessed in the first accommodating area, the first opening is located above the software part.

[0013] Optionally, the first opening is arranged at an angle.

[0014] Optionally, a side wall at the upper end of the hardware part is provided with an inwardly recessed escape zone, the mounting part includes the escape zone, and the escape zone is located above the software part.

[0015] Optionally, the functional mechanism includes a sewage suction channel, and the avoidance area and the inner wall of the first box body enclose at least a portion of the sewage suction channel, and / or the avoidance area is provided for the installation of at least a portion of the sewage suction channel; one end of the sewage suction channel is connected to the outside of the water tank, and the other end is connected to a negative pressure device, and the negative pressure device is suitable for pumping the sewage suction channel into a negative pressure so as to suck the dirty liquid into a chamber for containing the dirty liquid through the sewage suction channel.

[0016] Optionally, the first chamber is used to contain clean liquid, and the second chamber is used to contain dirty liquid.

[0017] Optionally, it also includes a gas-liquid separation device arranged in the avoidance area, the gas-liquid separation device includes a shell, the shell has a liquid inlet, an air outlet and a liquid discharge port, the liquid inlet is connected to the sewage suction channel; the liquid discharge port is connected to a chamber for accommodating dirty liquid, and the air outlet is connected to the air inlet of the negative pressure extraction device.

[0018] Optionally, the gas-liquid separation device includes at least one deflection component arranged in the shell, the deflection component has at least one arcuate surface, the arcuate surface is recessed from the liquid inlet side toward the gas outlet side, and the fluid in the sewage suction channel passes through the liquid inlet and the arcuate surface in sequence, and the liquid in the fluid is discharged through the liquid discharge port, and the gas in the fluid is discharged through the gas outlet.

[0019] Optionally, the liquid discharge port is located below the arc-shaped surface, and the air outlet is located above the arc-shaped surface.

[0020] Optionally, the baffle component includes at least one first baffle, the liquid discharge port and the air outlet are located on one side of the first baffle, the liquid inlet is located on the other side of the first baffle, one end of the first baffle is fixed to the shell, and a connecting port is formed between the other end and the side wall of the shell, so that the cavities in the shell located on both sides of the first baffle are connected.

[0021] Optionally, the deflection component includes a second deflector, the air outlet is arranged on the side wall of the shell, the liquid discharge port is arranged on the bottom wall of the shell, and the arc surface of the second deflector is arranged on the inner wall surface of the side wall where the air outlet is located.

[0022] Optionally, a guide portion is provided at one end of the first baffle plate close to the connecting port, and the guide portion is bent toward an arcuate surface of the rear first baffle plate or the second baffle plate located on the air flow path.

[0023] Optionally, an overflow port communicating with the first chamber and the second chamber is provided on the hardware part, and the overflow port is located on the fluid flow path of the sewage suction channel.

[0024] Optionally, a second liquid level monitoring component suitable for monitoring a preset maximum liquid level in the second chamber is installed in the second chamber, and the preset maximum liquid level monitored by the second liquid level monitoring component is lower than the drain port, the drain port is lower than the air outlet, and the drain port is lower than the overflow port.

[0025] Optionally, the sewage suction channel includes a first section and a second section connected to the first section, the second section is enclosed between the avoidance area and the inner wall of the first box body, and / or the avoidance area is provided for the installation of the second section, the second section is connected to the negative pressure extraction device, and the first section is connected to the outside of the water tank.

[0026] Optionally, the gas-liquid separation device is arranged in the second section, the liquid discharge port is arranged on the bottom wall of the second section, and the second section extends in the horizontal direction.

[0027] Optionally, the upper end outlet of the first section connected to the second section is lower than the drainage outlet.

[0028] Optionally, the first section is formed on the outer side wall of the first box body; or, the first section is defined by a portion of the outer side wall of the hardware part and a portion of the inner side wall of the first box body.

[0029] Optionally, the water tank is installed on a cleaning device, and the cleaning device also includes a cleaning component, a sewage suction port and a sewage discharge port, the sewage suction port is used to suck dirty liquid on the cleaning component or dirty liquid on the working surface cleaned by the cleaning component; the sewage discharge port connects the sewage suction port with the sewage suction channel to suck the dirty liquid into the second chamber; the sewage suction port is arranged along a preset direction of the cleaning component with the sewage discharge port as the center, and the first section extends in a vertical direction and is formed with a lower end inlet connected to the sewage discharge port.

[0030] Optionally, the functional mechanism of the first chamber includes:

[0031] a valve adapted to be opened in one direction to connect the first chamber and the second chamber so that the clean liquid flows to the chamber containing the dirty liquid;

[0032] and / or,

[0033] a delivery pipeline assembly, used for connecting the first chamber with the outside of the water tank;

[0034] and / or,

[0035] The first liquid level monitoring component is used to monitor the liquid level in the first chamber.

[0036] Optionally, the top wall of the hardware part is also provided with a third opening connected to the first chamber, and the third opening includes a placement space for accommodating a fixed platform and a reserved operating space; the fixed platform is installed on the mounting part, and the fixed platform is used for installing the functional mechanism of the first chamber.

[0037] Optionally, the valve core of the valve is installed on the bottom wall of the hardware part, one end of the valve stem of the valve is movably provided on the fixed platform, the other end of the valve stem is connected to the valve core, and the pull ring of the valve is installed on one end of the valve stem and exposed at the third opening. The valve stem is driven to move by the pull ring, and the valve core on the bottom of the valve stem is driven to move to open or close the valve.

[0038] Optionally, part of the fixed platform is formed as a water and electricity compartment, and a conversion component suitable for external connection of at least part of the functional mechanism is sealed and installed in the water and electricity compartment.

[0039] Optionally, the water tank also includes a protective bracket, which is installed in the second chamber; when the software part is not recessed in the first accommodating area, the protective bracket is used to support the software part; the protective bracket is provided with a through water-permeable hole, and the water-permeable hole connects the side of the protective bracket facing the software part and the side facing away from the software part.

[0040] Optionally, the protective bracket has a first slope on one side facing the software part, a position of the first slope close to the functional mechanism is lower than a position of the first slope away from the functional mechanism, and the first slope is suitable for fitting with the bottom surface of the software part to guide the liquid in the first chamber to flow toward the functional mechanism of the first chamber.

[0041] Optionally, the first chamber is used to hold clean liquid, and the second chamber is used to hold dirty liquid; a sewage outlet connecting the second chamber with the outside of the water tank is provided on the first box body, and the bottom of the second chamber has a second slope, and a position of the second slope close to the sewage outlet is lower than a position of the second slope away from the sewage outlet, and the second slope is suitable for guiding the dirty liquid in the second chamber to flow to the sewage outlet.

[0042] Optionally, the second box body is detachably installed in the first box body.

[0043] In order to achieve the real-time purpose and other related purposes, the utility model also provides a water tank, including:

[0044] A first box body having a liquid storage cavity;

[0045] an isolation component, the isolation component being installed in the first box body, the isolation component having a soft body portion, the soft body portion dividing the liquid storage chamber into a first chamber and a second chamber whose volume ratios can be relatively variable; one of the first chamber and the second chamber is used to contain clean liquid, and the other is used to contain dirty liquid; and

[0046] A protection bracket, which is installed in the first box, is located on a side of the software part facing away from the concave direction of the software part, and supports the software part;

[0047] The protective bracket is provided with a through water-permeable hole, and the water-permeable hole is suitable for connecting the side of the protective bracket facing the soft body part and the side facing away from the soft body part.

[0048] Optionally, a one-way opening valve is provided on the isolation component, and when the valve is opened, the first chamber and the second chamber are connected to each other, so that the clean liquid flows to the chamber containing the dirty liquid.

[0049] Optionally, the isolation component is detachably installed in the first box.

[0050] Optionally, the first chamber and the second chamber are distributed in a vertical direction; the first chamber is located above the second chamber, and the first chamber is used to contain a clean liquid, and the second chamber is used to contain a dirty liquid.

[0051] Optionally, the protective bracket has a first slope on one side facing the software part, and a position of the first slope close to the functional mechanism of the first chamber is lower than a position of the first slope away from the functional mechanism, and the first slope is suitable for fitting with the bottom surface of the software part to guide the liquid in the first chamber to flow toward the functional mechanism of the first chamber.

[0052] In order to achieve the real-time purpose and other related purposes, the utility model also provides a cleaning device, including the water tank as described above.

[0053] As described above, the technical solution provided by the utility model has at least the following beneficial effects: the second box body having a first chamber is installed in the first box body, and a second chamber is formed between the second box body and the first box body, so that the water tank has at least two chambers to realize the storage of clean liquid and dirty liquid, and the second box body has a soft part, which can be flexibly deformed so that the volume ratio between the first chamber and the second chamber can change relatively, which not only ensures the liquid storage amount but also avoids space waste, which is conducive to ensuring the cleaning effect of the water tank and the small volume production of the water tank; the second box body also has a hard part, the shape and structure of the hard part is stable, and it can be used as an installation carrier for components such as functional mechanisms, so as to provide stable installation space and support. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 This is a schematic structural diagram of a water tank embodiment 1 of the utility model;

[0055] Figure 2 for Figure 1 Top view of the grey water tank;

[0056] Figure 3 for Figure 2 Sectional view at AA in the middle;

[0057] Figure 4 for Figure 2 Sectional view at the middle BB;

[0058] Figure 5 for Figure 1 Schematic diagram of the explosion of the medium water tank;

[0059] Figure 6 for Figure 5 Schematic diagram of the assembly of the second box and the protective bracket;

[0060] Figure 7 for Figure 6 The front view of the second box and the protective bracket;

[0061] Figure 8 for Figure 6 Explosion diagram of the second box and the protective bracket;

[0062] Fig. 9 for Figure 8 The structural diagram of the middle hard body;

[0063] Fig.10 for Figure 6 A schematic diagram of the partial structure of the second box;

[0064] Fig.11 for Fig.10 A top view of the partial structure of the second box;

[0065] Fig.12 for Figure 1 A schematic diagram of a water tank installed in a cleaning device;

[0066] Fig.13 for Figure 1 The water tank is installed in the front view of the cleaning device;

[0067] Fig.14 It is a partial structural schematic diagram of the second embodiment of the water tank of the utility model;

[0068] Fig.15 It is a partial structural schematic diagram of the third water tank embodiment of the utility model.

[0069] Part Number Description

[0070] Water tank 100, first box body 1, second chamber 11, box cover 12, sewage outlet 13, second inclined surface 14, second box body 2, software part 21, second opening 211, hardware part 22, third opening 221, fixed platform 222, avoidance area 223, first opening 224, water and electricity warehouse 225, first chamber 23, first accommodating area 231, second accommodating area 232, overflow port 24, handle 25, conveying pipeline assembly 31, first liquid level monitoring component 32, valve 3 3, valve core 331, valve stem 332, pull ring 333, negative pressure device 41, gas-liquid separation device 42, shell 421, liquid inlet 4211, gas outlet 4212, liquid discharge port 4213, deflector component 43, arc surface 431, sewage suction channel 5, first section 51, lower end inlet 511, upper end outlet 512, second section 52, protective bracket 6, water permeable hole 61, first inclined surface 62, isolation component 7, cleaning equipment 8, cleaning component 81, sewage discharge port 82. DETAILED DESCRIPTION

[0071] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0072] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0073] See also Figures 1 to 5 , Fig.12 and Fig.13 In some optional embodiments, the present application provides a water tank, including a first tank body 1 and a second tank body 2. The second tank body 2 is installed in the first tank body 1; the second tank body 2 has a first chamber 23, and a second chamber 11 is formed between the outer wall of the second tank body 2 and the inner wall of the first tank body 1; wherein the second tank body 2 includes a hard part 22 and a soft part 21, the hard part 22 and the soft part 21 are connected to form the first chamber 23, and the soft part 21 can be deformed to change the volume ratio of the first chamber 23 and the second chamber 11.

[0074] The hard part can be made of a material that is difficult to deform when subjected to the force of the fluid, and the soft part can be made of a material that is easy to deform when subjected to the force of the fluid. This allows the soft part to deform when subjected to the force of the liquid in the first chamber or the second chamber, thereby changing the volume ratio of the first chamber and the second chamber.

[0075] Optionally, the soft part 21 can be a component with a flexible deformation function or an elastic deformation function. It is understandable that the flexible deformation function means that the soft part 21 can be flexibly deformed, but the surface area of ​​the soft part 21 will not change, will not be pulled, and will not be easily torn. The elastic deformation function means that the soft part 21 can be elastically deformed, and the soft part 21 can expand to increase the surface area of ​​the soft part under the action of an external force. When the external force disappears, the surface area of ​​the soft part 21 shrinks and returns to its initial state. The shape, structure and material of the soft part 21 can be flexibly selected according to needs.

[0076] For example, the second box structure formed by the hardware part 22 and the software part 21 is as follows: Figure 3 As shown, when the first chamber 23 contains liquid and the second chamber 11 does not contain liquid, the soft part 21 is in a state of being affected by the force of the liquid in the first chamber 23. Figure 3As the amount of liquid contained in the second chamber 11 increases, the liquid in the second chamber 11 also exerts a force on the soft body 21. For any position of the soft body, the first force exerted by the liquid in the second chamber 11 on the soft body 21 is directed toward the first chamber 23, and the second force exerted by the liquid in the first chamber 23 on the soft body 11 is directed toward the second chamber 11; when the first force is greater than the second force, the soft body is deformed, Figure 3 The first chamber 23 is sunken in the state of the second chamber 11, so that the volume of the second chamber 11 is reduced and the volume of the first chamber 23 is increased, changing the volume ratio of the first chamber 23 and the second chamber 11. The above is only an example and does not constitute a specific limitation on the solution provided in the embodiments of the specification.

[0077] The arrangement and connection of the hardware part 22 and the software part 21 in the second box 2 are not limited. For example, the hardware part can be a shell with an opening, and the software part covers at least a part of the hardware part and the entire opening of the hardware part; or, the second box 2 includes multiple unconnected hardware parts, and the software part is arranged between the hardware parts, and the software part and the hardware part are fixed by screws or glue to form the first chamber 23.

[0078] The volume of the first box body 1 can be set to be fixed. For example, the first box body 1 is a hard part as a whole; the first box body 1 can also be not limited to be a hard part as a whole. The cleaning equipment is usually equipped with a water tank containing chamber, and the inner wall of the containing chamber is a hard part as a whole, which is used to limit the volume of the first box body 1 to be fixed. Of course, the volume of the first box body 1 can also be set to be changeable, so as to change the volume of the water tank as a whole according to the demand for the water tank to hold liquid as a whole; accordingly, changing the volume ratio of the first chamber 23 and the second chamber 11 can mean that when the volume of the first box body 1 is fixed at a certain value, as the soft part 21 is deformed, the volume of the first chamber 23 increases, and the volume of the second chamber 11 decreases; or, when the volume of the first box body 1 is fixed at a certain value, as the soft part 21 is deformed, the volume of the first chamber 23 decreases, and the volume of the second chamber 11 increases.

[0079] The water tank and the cleaning device may be separable structures. The water tank may also be fixed in the cleaning device, for example, the shell of the first box body 1 may be formed by the wall of the accommodating chamber of the water tank of the cleaning device.

[0080] The second box body 2 is detachably installed in the first box body 1, and is easy to disassemble and assemble, so that the second box body 2 can be taken out and the first box body 1 or the second box body 2 can be cleaned. After the cleaning equipment has been cleaning for a period of time, dirt is likely to remain on the wall surface of the first box body 1 and / or the second box body 2, and the functional mechanism in the water tank. If it is not cleaned properly, it is easy to mold and stink. By detachably installing the second box body 2 in the first box body 1, it is convenient for the user to take out the second box body 2, clean the first box body 1, the second box body 2 and the functional mechanism in the water tank, and effectively reduce the phenomenon of mold and stink in the water tank. At the same time, taking out the second box body 2 can also facilitate the maintenance of the functional mechanism in the water tank. Of course, the second box body 2 can also be fixedly installed in the first box body 1, which is not limited here.

[0081] One of the first chamber 11 and the second chamber 23 is used to contain a clean liquid, and the other is used to contain a dirty liquid.

[0082] For example, the water tank can be installed on the cleaning robot. The cleaning liquid can be clean water or a cleaning liquid with added sterilizing agent or decontaminant, without limitation. The cleaning liquid in the water tank can be added to the rag of the cleaning robot to perform floor cleaning. The dirty liquid can be the dirty liquid sucked from the rag of the cleaning robot. Usually, during the cleaning process of the cleaning robot on the floor, the cleaning liquid gradually decreases and the dirty liquid gradually increases. Based on the water tank provided in the embodiment of this specification, the second box body has a soft part, and the soft part can be flexibly deformed so that the volume ratio between the first chamber and the second chamber can change relatively. In the case where one of the first chamber and the second chamber is used to hold the cleaning liquid and the other is used to hold the dirty liquid, the above structure can make the volume of the chamber containing the cleaning liquid gradually decrease, and the volume of the chamber containing the dirty liquid gradually increase, thereby meeting the cleaning needs and improving the user experience without changing the overall volume of the water tank. Of course, the above scenario examples are only preferred examples and do not constitute a limitation on the embodiment of this specification. For example, the water tank can also be installed on the cleaning base station.

[0083] The water tank provided in the embodiment of this specification not only ensures the liquid storage capacity and meets the cleaning requirements, but also saves the space requirements of the water tank for cleaning equipment. Moreover, in the water tank of the above embodiment, the second box body 2 is installed in the first box body 1, so that the second box body 2 is relatively independent of the first box body 1, making the installation of the box body more flexible, for example, the second box body 2 can be fixedly connected to the first box body 1 or detachably connected. In addition, the second box body 2 has a hard body 22, and the shape and structure of the hard body 22 are stable, and can be used as an installation carrier to provide stable installation space and support for parts, which is conducive to improving the overall reliability of the water tank.

[0084] See also Figure 3 , Figure 5 , Figure 8 and Fig. 9 In some optional embodiments, the hardware part 22 has a first accommodating area 231 with a first opening 224 at one end, and the software part 21 is arranged at the first opening 224, and the first accommodating area 231 and the software part 21 form a first chamber 23; when the software part 21 is recessed in the first accommodating area 231, the hardware part 22 has an installation part staggered from the software part 21, and the installation part is for installing the functional mechanism of the first chamber 23 and / or the second chamber 11.

[0085] Functional mechanisms may refer to water pipes, liquid level detection mechanisms, valves, gas-liquid separation structures, control circuits, and the like. When the soft part is deformed, it may interfere with the functional mechanism in the water tank, causing damage to the soft part, or the soft part may affect the normal operation of the valve, liquid level detection mechanism, and gas-liquid separation structure. The water tank of this embodiment is arranged such that when the soft part 21 is recessed in the first accommodating area 231, the hard part 22 has an installation portion staggered from the soft part 21, and the installation portion is provided for the functional mechanism of the first chamber 23 and / or the second chamber 11 to be installed, thereby avoiding the soft part 21 from interfering with the functional mechanism, ensuring the normal operation of the functional mechanism, and avoiding possible damage to the soft part, thereby improving the reliability of the water tank.

[0086] The soft portion 21 may be a film covering the first opening 224 .

[0087] Alternatively, the soft body 21 may also be formed with a cavity, such as a soft bag, a soft shell or other structures with a cavity, see Figure 3 , Figure 5 , Figure 8 and Fig. 9 In some optional embodiments, when the software part 21 is not recessed in the first accommodating area 231, the software part 21 has a second accommodating area 232 with a second opening 211 at one end, and the second opening 211 of the software part 21 is sealed and connected to the first opening 224 of the hardware part 22; and the first accommodating area 231 and the second accommodating area 232 are connected to form a first chamber 23.

[0088] Optionally, the hardware part 22 and the software part 21 can be sealed by bonding, locking parts or other connection methods. Further, part of the software part 21 is covered on the part of the hardware part 22 protruding from the edge of the first opening 224, and then the software part 21 and the hardware part 22 are locked with screws so that the part of the software part 21 connected to the hardware part 22 is squeezed to form a seal, and the soft material of the software part 21 itself is used to achieve the seal, the structure is simple, and the sealing connection is simple and convenient; or, the software part 21 and the hardware part 22 are sealed by applying glue and locking parts, and the sealing connection is reliable.

[0089] In the water tank of the above embodiment, the soft part 21 is a structural form that can form a cavity, which can further increase the deformation space of the soft part 21. The deformation of the soft part 21 is a flexible deformation, which not only has low requirements on the material of the soft part 21, but also helps to reduce the risk of the soft part 21 being pulled, torn and damaged, avoids prolonged deformation of the soft part 21 and shedding of the hard part 22, and helps to extend the service life.

[0090] See also Figure 1 , Figure 3 , Figure 5 , Figure 8 and Fig. 9 In some optional embodiments, when the software part 21 is not recessed in the first accommodation area 231, the software part 21 and the hard part 22 are arranged in the horizontal direction, and the first opening 224 can be extended in the vertical direction. Alternatively, the software part 21 and the hard part 22 are arranged in the vertical direction. Alternatively, the first opening 224 can also be arranged at an angle.

[0091] Optionally, when the software portion 21 is not recessed in the first accommodating area 231 , the first opening 224 is located above the software portion 21 .

[0092] For example, the first opening 224 can be arranged to extend in the horizontal direction, and the hardware part 22 can be located directly above the software part 21. Specifically, when the software part 21 is not recessed in the first accommodating area 231, the first opening 224 is located above the software part 21, and the software part 21 is located below the hardware part 22. Even if there is less liquid in the first chamber 23, the liquid will preferentially act on the software part 21. The software part 21 falls away from the first accommodating area 231 under the action of its own gravity or the action of the liquid contained therein, thereby reducing interference with the first accommodating area 231, which is convenient for the installation of the functional mechanism and helps to further reduce the risk of interference between the software part 21 and the functional mechanism.

[0093] Alternatively, the first opening 224 can be arranged at an angle, and the hard part 22 can be located above and to the side of the soft part 21. When the first opening 224 is arranged at an angle, the soft part 21 has a side wall extending in the vertical direction and a bottom wall extending in the transverse direction, so that the soft part 21 will deform when squeezed by the fluid in both the horizontal and vertical directions, thereby improving the flexibility of the soft part 21 in deforming, thereby more effectively changing the volume ratio of the first chamber 23 and the second chamber 11. In addition, the first opening 224 is arranged at an angle so that the first opening 224 can be located on one side of the soft part 21 in the circumferential direction, so that at least one side around the soft part 21 will not be squeezed in the horizontal direction, and it can also effectively prevent the four sides of the soft part from being squeezed in the horizontal direction at the same time and moving toward the middle to block the flow path of the liquid.

[0094] Optionally, when the soft part 21 is not sunken or deformed but is in a natural initial state, the first chamber 23 surrounded by the hard part 22 and the soft part 21 can be in the shape of a rectangular parallelepiped, and the second box body 2 can also be in the shape of a rectangular parallelepiped. However, it can be understood that the shapes of the first chamber 23 and the second box body 2 are not limited to the rectangular parallelepiped and can also be other shapes.

[0095] It can be understood that in this application, the definitions of directions such as up, down, horizontal and vertical directions are based on the orientation of the water tank in the normal operating state of the cleaning equipment; among them, the vertical direction includes the Z direction in the accompanying drawings, and the horizontal direction includes the X and Y directions in the accompanying drawings.

[0096] See also Figures 5 to 7 In some optional embodiments, the side wall of the upper end of the hardware part 22 is provided with an inwardly recessed escape area 223, the mounting part includes the escape area 223, and the escape area 223 is located above the software part 21. As a part of the mounting part, the escape area 223 can be used to install a functional mechanism, further saving space and making the structure compact.

[0097] See also Figures 1 to 5 In some optional embodiments, the functional mechanism includes a sewage suction channel 5, and the avoidance area 223 and the inner wall of the first box body 1 enclose at least part of the sewage suction channel 5, and / or the avoidance area 223 is used to install at least part of the sewage suction channel 5; one end of the sewage suction channel 5 is connected to the outside of the water tank, and the other end is connected to the negative pressure extraction device 41, and the negative pressure extraction device 41 is suitable for extracting the sewage suction channel 5 into a negative pressure, so as to suck the dirty liquid into the chamber for containing the dirty liquid through the sewage suction channel 5. The sewage suction channel 5 is partially formed in the avoidance area 223, or installed in the avoidance area 223, so that the structure is more compact. The negative pressure extraction device 41 can be a fan, etc., without limitation.

[0098] See also Figures 1 to 5 In some optional embodiments, the first chamber 23 is used to contain clean liquid, and the second chamber 11 is used to contain dirty liquid, so that the setting of the sewage suction channel 5 is simpler and more convenient, and there is no need to set more openings and sealing structures. Specifically, when the first chamber 23 contains clean liquid and the second chamber 11 contains dirty liquid, an inwardly recessed escape area 223 can be provided on the side wall of the upper end of the hard body 22, and at least part of the sewage suction channel 5 is enclosed between the escape area 223 and the inner wall of the first box body 1. The above structure makes the setting of the sewage suction channel 5 simpler and more convenient, and there is no need to set more openings and sealing structures; and it can also effectively prevent the deformation of the soft body 21 from interfering with the sewage suction channel 5, while making the water tank structure more compact.

[0099] See also Figure 5 , Figure 6 , Fig.10 and Fig.11 In some optional embodiments, a gas-liquid separation device 42 is further included in the avoidance area 223. The gas-liquid separation device 42 includes a shell 421, and the shell 421 has a liquid inlet 4211, an air outlet 4212, and a liquid discharge port 4213. The liquid inlet 4211 is connected to the sewage suction channel 5; the liquid discharge port 4213 is connected to the chamber for containing dirty liquid, the air outlet 4212 is connected to the air inlet of the negative pressure extraction device 41, and the liquid discharge port 4213 is lower than the air outlet 4212. The gas-liquid separation device 42 is arranged in the avoidance area 223, which more effectively prevents the deformation of the soft body 21 from affecting the fluid channel of the gas-liquid separation device 42.

[0100] See also Figure 5 , Figure 6 , Fig.10 and Fig.11 In some optional embodiments, the gas-liquid separation device 42 includes at least one baffle component 43 disposed in the housing 421. The baffle component 43 may include a plurality of baffles, the baffles including straight plates and / or bent plates with an arc structure, and the baffles may be arranged at different positions in the housing 421 as required, so that the liquid velocity in the gas-liquid mixture is less than the air velocity. After the airflow containing liquid hits the baffle and then turns rapidly, due to the different inertia of gas and liquid, the airflow is relatively easy to change the flow direction and continue to flow downstream, while small droplets will hit the baffle and converge. Liquid has a larger mass than gas, and generally settles below after convergence, so that the liquid in the gas-liquid mixture is gradually deposited during the transportation process. The drain port 4213 may also be set lower than the air outlet 4212, so that the liquid can be discharged into the chamber containing dirty liquid through the drain port 4213 based on gravity, and the gas-liquid mixture has basically no liquid or only a small amount of liquid when it reaches the vicinity of the air inlet of the negative pressure extraction device 41, reducing the impact on the outside air or the internal components of the cleaning equipment. Of course, a simple gas-liquid separation mechanism may also be configured in the negative pressure extraction device 41 to further perform gas-liquid separation and reduce the impact on the outside air or the internal components of the cleaning equipment.

[0101] Optionally, when the baffle member 43 is a baffle with an arc structure, the baffle member 43 has at least one arc surface 431, and the arc surface 431 is recessed from the liquid inlet 4211 side toward the gas outlet 4212 side. After the fluid in the sewage suction channel 5 passes through the liquid inlet 4211 and the arc surface 431 in sequence, the liquid in the fluid is discharged through the liquid discharge port 4213, and the gas in the fluid is discharged through the gas outlet 4212. The baffle member 43 uses an arc baffle recessed toward the gas outlet 4212 side, which can make the flow direction of the fluid change more gentle and will not produce splashes; at the same time, the arc baffle recessed toward the gas outlet 4212 side can also make the fluid more convergent after turning, so that the liquid is more likely to converge and settle. At the same time, in the case where multiple baffles are set on the fluid path, the arc baffle recessed toward the gas outlet 4212 side can also avoid excessive initial deceleration of the gas-liquid mixture, thereby affecting the flow effect of the gas-liquid mixture.

[0102] Optionally, the number of drain ports 4213 may be one or more, and baffles corresponding to each drain port 4213 may be provided in the shell 421. Baffles may be provided at positions corresponding to the drain ports 4213 in the shell 421, so that the gas-liquid separation effect is good and the separated liquid can be discharged in time.

[0103] See also Figure 5 , Figure 6 , Fig.10 and Fig.11 In some optional embodiments, the liquid discharge port 4213 is located below the curved surface, and the gas outlet 4212 is located above the curved surface. By arranging the liquid discharge port 4213 below the curved surface and the gas outlet 4212 above the curved surface, the liquid has a larger mass than the gas, and the liquid will generally be deposited below when it is gathered, which can prevent the negative pressure generated by the negative pressure device 41 from bringing the liquid into the gas outlet; at the same time, it can also facilitate the gathered liquid to fall directly into the chamber containing the dirty liquid by gravity, thereby improving the gas-liquid separation effect.

[0104] Baffles may be provided in the fluid flow path, see Figure 5 , Figure 6 , Fig.10 and Fig.11In some optional embodiments, the baffle component 43 includes at least one first baffle, the liquid discharge port 4213 and the gas outlet 4212 are located on one side of the first baffle, the liquid inlet 4211 is located on the other side of the first baffle, one end of the first baffle is fixed to the shell 421, and a connecting port is formed between the other end and the side wall of the shell 421, so that the cavities on both sides of the first baffle in the shell 421 are connected. At least one first baffle is arranged in the fluid flow path in the shell 421, which is conducive to the early convergence of the liquid and further improves the effect of gas-liquid separation. At the same time, one end of the first baffle is fixed to the shell of the gas-liquid separation device, and a connecting port is formed between the other end and the side wall of the shell of the gas-liquid separation device. The side wall of the shell of the gas-liquid separation device can also be used to change the flow direction of the fluid, reduce the number of baffles set, and reduce the complexity of the structure.

[0105] See also Figure 5 , Figure 6 , Fig.10 and Fig.11 In some optional embodiments, the baffle member 43 includes a second baffle, the gas outlet 4212 is provided on the side wall of the housing 421, the liquid outlet 4213 is provided on the bottom wall of the housing 421, and the arc surface of the second baffle is provided on the inner wall surface of the side wall where the gas outlet 4212 is located. The baffle is provided at a position directly below the gas outlet 4212 in the housing 421, which is conducive to further reducing the liquid entering the gas outlet 4212.

[0106] See also Figure 5 , Figure 6 , Fig.10 and Fig.11 In some optional embodiments, a guide portion is provided at one end of the first baffle plate close to the connecting port, and the guide portion is bent toward the arc surface of the rear first baffle plate or the second baffle plate located on the airflow path. In the case where there are multiple first baffle plates, on the fluid flow path, the guide portion of the front first baffle plate can be bent toward the arc surface of the rear first baffle plate located on the airflow path; the guide portion of the last first baffle plate can be bent toward the arc surface of the second baffle plate to guide the fluid to flow in the direction of the rear baffle plate on the airflow path, thereby ensuring that each baffle plate can effectively achieve the effect of gas-liquid separation.

[0107] See also Figure 3 , Figures 5 to 7In some optional embodiments, the hardware part 22 is provided with an overflow port 24 connecting the first chamber 23 and the second chamber 11, and the overflow port 24 is located on the fluid flow path of the sewage suction channel 5. The overflow port 24 is located on the fluid flow path in the shell 421, which is conducive to the airflow overflowing from the overflow port 24 to flow along the gas flow of the fluid flow path and be discharged from the air inlet of the negative pressure extraction device 4 to the outside of the water tank. The air pressure environment of the fluid flow path in the shell 421 can also help accelerate the flow speed of the airflow overflowing from the overflow port 24.

[0108] See also Figures 3 to 6 In some optional embodiments, an overflow port 24 connecting the first chamber 23 and the second chamber 11 is provided at the upper portion of the second box body 2 .

[0109] Optionally, the overflow port 24 is located at the upper part of the side wall of the hardware part 22, which can not only avoid interference from the software part 21, but also does not need to close the overflow port 24 when the water tank is performing sewage suction operation to form a negative pressure, thereby simplifying the structure and making the operation easier. Specifically, when the water tank is performing sewage suction operation, a negative pressure environment will be formed, and the airflow in the chamber containing the clean liquid can be directly discharged into the chamber containing the dirty liquid through the overflow port 24, and sucked away by the negative pressure, without the need to set up a separate exhaust valve; even if the air pressure causes the liquid in the chamber containing the clean liquid to overflow, the water will directly overflow into the chamber containing the dirty liquid, and will not enter other spaces to damage the equipment.

[0110] In the water tank of the above embodiment, an overflow port 24 is provided on the upper portion of the second box body 2 for connecting the first chamber 23 and the second chamber 11, so that one of the first chamber 23 and the second chamber 11 can receive water overflowing from the other. For example, when the water in the first chamber 23 is a clean liquid, the clean liquid in the first chamber 23 can directly overflow into the second chamber 11 through the overflow port 24; in addition, the overflow port 24 can also keep the air pressure of the first chamber 23 and the second chamber 11 consistent, so that the soft part 21 can move normally for deformation.

[0111] See also Figures 3 to 7In some optional embodiments, a second liquid level monitoring component suitable for monitoring a preset maximum liquid level in the second chamber 11 is installed in the second chamber 11. The preset maximum liquid level monitored by the second liquid level monitoring component is lower than the drain port 4213, the drain port 4213 is lower than the gas outlet 4212, and the drain port 4213 is lower than the overflow port 24. When the second liquid level monitoring component detects that the water in the second chamber 11 exceeds the preset maximum liquid level, the negative pressure extraction device 41 is closed, the second chamber 11 is no longer negatively pressured, and the dirty liquid in the second chamber 11 no longer increases, an alarm is sounded, and the dirty liquid in the second chamber 11 is discharged, thereby preventing the dirty liquid in the second chamber 11 from flowing back from the drain port 4213 and entering the first chamber, the sewage suction channel, the gas-liquid separation device 42 and the negative pressure extraction device 41, which is conducive to preventing damage to the negative pressure extraction device 41 and other circuits in the device.

[0112] See also Figure 1 , Figure 5 , Fig.12 and Fig.13 In some optional embodiments, the number of the sewage suction channels 5 can also be set according to demand, for example, it can be one, two or more.

[0113] See also Figures 3 to 7 In some optional embodiments, the sewage suction channel 5 includes a first section 51 and a second section 52 connected to the first section 51, and the avoidance area 223 and the inner wall of the first box body 1 form the second section 52, and / or the avoidance area 223 is used to install the second section 52, the second section 52 is connected to the negative pressure extraction device 41, and the first section 51 is connected to the outside of the water tank. Among them, the avoidance area 223 and the inner wall of the first box body 1 form the second section 52, which can not only simplify the structure, but also reduce the influence of the air pressure in the second section 52 on the deformation of the soft part 21; the avoidance area 223 is used for the installation of the second section 52 to avoid the interference between the second section 52 and the soft part 21.

[0114] See also Figures 3 to 7 In some optional embodiments, the first section 51 is formed on the outer wall of the first box body 1, which can reduce the occupation of the internal space of the first box body 1 and save space; or, the first section 51 is defined by part of the outer wall of the hardware part 22 and part of the inner wall of the first box body 1, which not only has a simple and compact structure, but also avoids interference of the software part 21 with the first section 51.

[0115] In addition, the first section 51 may be disposed at a top corner of the first box body 1, a middle portion of a side wall of the first box body 1, or other locations.

[0116] Optionally, the first box body 1 may be in a rectangular parallelepiped shape. In the length direction of the first box body 1, the first section 51 is located in the middle of one side of the first box body 1, and the first section 51 is located in the middle of the side wall of the first box body 1. In the present application, the length direction of the first box body 1 may be the X direction in the drawings, the width direction of the first box body 1 may be the Y direction in the drawings, and the height direction of the first box body 1 may be the Z direction in the drawings.

[0117] In the water tank of the above embodiment, the first section 51 can be flexibly arranged according to needs, especially the first section 51 is arranged in the middle of the side wall of the first box body 1, so that the first section 51 is located in a relatively central position of the first box body 1, which is beneficial to shortening the conveying path. The first section 51 is easy to set up and is conducive to processing into a straight tube structure.

[0118] See also Figure 1 , Figure 5 , Fig.12 and Fig.13 In some optional embodiments, the first section 51 extends in the vertical direction to form a straight tube structure. The first section 51 adopts a straight tube structure, which can reduce the risk of blockage of the first section 51, facilitate dredging and maintenance, reduce air volume loss and reduce noise.

[0119] Optionally, the first section 51 can adopt a top water spraying method or a side water spraying method. The first section 51 has a lower inlet 511 and an upper outlet 512. When the side water spraying method is adopted, a turning joint can be connected at the upper outlet 512, which is conducive to adapting to various installation environments and reducing the requirements for the installation environment.

[0120] See also Figures 3 to 7 In some optional embodiments, the gas-liquid separation device 42 is disposed in the second section 52, and the drain port 4213 is disposed on the bottom wall of the second section 52. The second section 52 extends in a horizontal direction, which is beneficial to the separation of gas and liquid in the fluid and allows the liquid to be discharged from the drain port 4213 in time. The gas is drawn out and discharged from the air inlet of the negative pressure extraction device 41, thereby reducing the influence of air pressure on the deformation of the soft body 21.

[0121] Optionally, the drain ports 4213 may be distributed at different positions on the bottom wall of the second section 52 as required, so that the sewage can fall into the second chamber 11 in time under the action of its gravity after being deposited.

[0122] See also Figures 3 to 7In some optional embodiments, the upper outlet 512 of the first section 51 connected to the second section 52 is lower than the drain port 4213. Usually, when the second liquid level monitoring component detects that the liquid level in the second chamber 11 reaches the preset maximum liquid level, the controller will control the negative pressure pumping device 41 to close, and no dirty liquid will be sucked into the second chamber 11. However, there may be a special situation where the water in the second chamber 11 continues to rise when the second liquid level monitoring component detects that the liquid level reaches the preset maximum liquid level. For example, there is a situation where the clean liquid in the first chamber 23 overflows from the overflow port 24, resulting in the liquid level in the second chamber 11 still rising after reaching the preset maximum liquid level, which is easy to cause the water in the second chamber 11 to rise and flow back from the drain port 4213; and setting the upper outlet 512 of the first section 51 at a position lower than the drain port 4213 can allow the backflowing liquid to flow back to the ground from the upper outlet 512 of the first section 51, so that in extreme cases, it can also prevent the liquid in the second chamber 11 from flowing into the negative pressure pumping device 41 and damaging the equipment.

[0123] Optionally, the detection principle and detection structure of the second liquid level monitoring component are not limited. The second liquid level monitoring component can be a float type liquid level sensor, a buoy type liquid level sensor, etc.

[0124] See also Figures 3 to 7 In some optional embodiments, the gas-liquid separation device 42 can be embedded between the outer wall of the hardware part 22 and the inner wall of the first water tank.

[0125] See also Figure 1 , Figure 3 , Figure 5 , Fig.12 and Fig.13 In some optional embodiments, the water tank is installed on the cleaning equipment, and the cleaning equipment also includes a cleaning component 81, a sewage suction port and a sewage discharge port 82. The sewage suction port is used to suck dirty liquid on the cleaning component or dirty liquid on the working surface cleaned by the cleaning component; the sewage discharge port 82 connects the sewage suction port with the sewage suction channel 5 to suck the dirty liquid into the second chamber 11; the sewage suction port is arranged along the preset direction of the cleaning component with the sewage discharge port 82 as the center, and the first section 51 extends in the vertical direction and is formed with a lower end inlet 511 connected to the sewage discharge port 82.

[0126] Optionally, the cleaning component 81 includes a sewage collection component of the host, a wet cleaning component or a cleaning disk of the base station. A plurality of sewage suction ports are evenly arranged on the cleaning component 81, and dirty liquid enters from the plurality of sewage suction ports and enters the first section 51 through the sewage discharge port 82 from the lower end inlet 511 of the first section 51; wherein, the plurality of sewage suction ports are evenly arranged at the bottom of the cleaning component 81. Furthermore, the cleaning component 81 can be a long strip or arc-shaped structure, and the cleaning component 81 with such a structural design is conducive to increasing the sewage suction area. It is understandable that the shape of the cleaning component 81 is not limited to the above-mentioned shapes, and can also be designed into other shapes according to needs.

[0127] In the water tank of the above embodiment, the sewage suction ports are evenly arranged on the cleaning component 81, and are arranged along the preset direction of the cleaning component 81 with the sewage discharge port 81 as the center, which is beneficial to evenly distribute the suction force to each sewage suction port through the sewage discharge port 82, so that the air pressure of each sewage suction port is the same, which is convenient for uniform sewage suction, reduces air volume loss, improves sewage suction efficiency, and ensures that a smaller number of first sections 51 can also ensure the sewage suction effect, which is beneficial to simplify the structure and reduce costs.

[0128] See also Figures 3 to 5 , Figures 8 to 12 In some optional embodiments, the functional mechanism of the first chamber 23 includes a valve 33 and / or a delivery pipeline assembly 31 and / or a first liquid level monitoring component 32. The valve 33 is suitable for opening in one direction to connect the first chamber 23 and the second chamber 11, so that the clean liquid flows to the chamber containing the dirty liquid; the delivery pipeline assembly 31 is used for connecting the first chamber 23 with the outside of the water tank; and the first liquid level monitoring component 32 is used to monitor the liquid level in the first chamber 23.

[0129] See also Figure 5 , Figures 8 to 12 In some optional embodiments, the top wall of the hardware part 22 is further provided with a third opening 221 connected to the first chamber 23, and the third opening 221 includes a placement space for accommodating a fixed platform 222 and a reserved operating space; the fixed platform 222 is installed on the installation part, and the fixed platform 222 is used for installing the functional mechanism of the first chamber 23. The operating space can be a space for performing operations on the functional mechanism of the first chamber 23, such as disassembling and maintaining the functional mechanism of the first chamber 23; the operating space can also be a space for adding liquid to the first chamber 23. It is not only simple and convenient to install and operate, but also has a compact structure and layout, which is conducive to reducing the occupied space.

[0130] See also Figure 5 , Figures 8 to 12In some optional embodiments, part of the fixed platform 222 is formed as a water and electricity compartment 225, and a transfer component suitable for external connection of at least part of the functional mechanism is sealed and installed in the water and electricity compartment 225. The water and electricity compartment 225 can be sealed by a sealing cover. The transfer component can be used to provide a transfer interface for external connection of the conveying pipeline assembly 31 and / or the circuit for powering the first liquid level monitoring component 32 and / or the circuit for powering the valve 33 and / or other components, thereby realizing the transfer of the functional mechanism and the components located outside the water tank.

[0131] In the water tank of the above embodiment, part of the fixed platform 222 is formed into a water and electricity compartment 225, which can not only provide space to realize the connection between the functional mechanism inside the water tank and the components outside the water tank, but also the space of the water and electricity compartment 225 is relatively closed, which can reduce the influence of water vapor on the components installed in the water and electricity compartment 225, especially reduce the influence on components such as circuits, thereby improving safety and reliability.

[0132] See also Figures 3 to 5 , Figures 8 to 12 In some optional embodiments, the functional mechanism of the first chamber 23 includes a delivery pipeline assembly 31, and the first chamber 23 is connected to the outside of the water tank through the delivery pipeline assembly 31. The liquid in the first chamber 23 can be delivered to the outside of the water tank through the delivery pipeline assembly 31.

[0133] Optionally, when cleaning liquid is accumulated in the first chamber 23, the cleaning liquid may be clean water or clean water with added detergent or other liquid with cleaning ability. The delivery pipe assembly 31 is connected to the cleaning assembly 81 outside the water tank, and the cleaning liquid in the first chamber 23 is delivered to the cleaning assembly 81 through the delivery pipe assembly 31, so that the cleaning assembly 81 performs the cleaning operation.

[0134] Optionally, the delivery pipeline assembly 31 includes components such as a water pipe (not shown in the figure) and / or a valve and / or a water inlet and / or a water pump; wherein the water pump provides suction power to transport the water in the first chamber 23 to the outside of the water tank through the water pipe.

[0135] Optionally, some components of the delivery pipeline assembly 31 can be installed on the bottom wall of the hardware part 22, for example, the water inlet end of the delivery pipeline assembly 31 is installed on the bottom wall of the hardware part 22, which is conducive to the full drainage of the liquid in the first chamber 23; some components of the delivery pipeline assembly 31 can be installed on the fixed platform 222, for example, the water outlet end of the delivery pipeline assembly 31 is installed on the fixed platform 222.

[0136] The water tank of the above-mentioned embodiment, by installing the delivery pipeline assembly 31 on the installation part of the hardware part 22, can not only provide stable and reliable support for the delivery pipeline assembly 31, and is simple and convenient to install, but also can effectively prevent the software part 21 from interfering with the delivery pipeline assembly 31 and affecting the normal operation of the delivery pipeline assembly 31, thereby improving the reliability of the delivery pipeline assembly 31.

[0137] See also Figure 4 , Figure 5 , Figures 8 to 11 In some optional embodiments, the functional mechanism of the first chamber 23 includes a valve 33 that is suitable for opening in one direction to connect the first chamber 23 and the second chamber 11, so that the clean liquid flows to the chamber containing the dirty liquid. The valve 33 is opened in one direction to prevent the dirty liquid from flowing back into the clean liquid and contaminating it.

[0138] Optionally, the valve core 331 of the valve 33 is mounted on the bottom wall of the hard body 22, one end of the valve stem 332 of the valve 33 is movably arranged on the fixed platform 222, the other end of the valve stem 332 is connected to the valve core 331, and the pull ring 333 of the valve 33 is mounted on one end of the valve stem 332 and exposed at the third opening 221. The valve stem 332 is driven to move by the pull ring 333, and the valve core 331 on the bottom of the valve stem 332 is driven to move, so as to open or close the valve 33, and the operation is simple. Further, the valve core 331 can be a plug, and a drainage hole is provided on the hard body 22. The valve stem 332 is connected to the plug and can drive the plug to block the drainage hole and open the drainage hole. It can be understood that the structure of the valve 33 is not limited to the mechanical valve 33 exemplified above, and an electric valve 33 can also be used so that the valve 33 can be automatically opened and closed according to instructions.

[0139] The water tank of the above embodiment, by providing a valve 33 that can connect the first chamber 23 and the second chamber 11, can pass cleaning liquid into the chamber that needs to be cleaned for cleaning, and the water tank can be cleaned without disassembling parts, especially the chamber filled with dirty liquid, and the cleaning operation is simple and convenient. In addition, installing the valve 33 on the mounting portion of the hardware part 22 not only provides stable and reliable support for the valve 33, and the installation is simple and convenient, but also can effectively avoid the interference of the software part 21 with the valve 33 and affect the normal operation of the valve 33, thereby improving the reliability of the valve 33.

[0140] See also Figure 4 , Figure 5 , Figures 8 to 11 In some optional embodiments, the functional mechanism of the first chamber 23 includes a first liquid level monitoring component 32 , and the first liquid level monitoring component 32 is suitable for monitoring the liquid level in the first chamber 23 .

[0141] Optionally, the bottom end support of the first liquid level monitoring component 32 is fixed on the bottom wall of the hardware part 22 , and the top end support of the first liquid level monitoring component 32 is fixed on the fixed platform 222 .

[0142] Optionally, the detection principle and detection structure of the first liquid level monitoring component 32 are not limited. The first liquid level monitoring component 32 can be a float type liquid level sensor, a buoy type liquid level sensor, etc.

[0143] The clean water tank of the above-mentioned embodiment installs the first liquid level monitoring component 32 on the installation part of the hardware part 22. The hardware part 22 can not only provide stable and reliable support for the first liquid level monitoring component 32, and the installation is simple and convenient, but also can effectively avoid the software part 21 interfering with the first liquid level monitoring component 32 and affecting the normal operation of the first liquid level monitoring component 32, thereby improving the reliability of the first liquid level monitoring component 32.

[0144] See also Figure 1 , Figure 5 and Figure 6 In some optional embodiments, the second box body 2 can be detachably installed in the first box body 1.

[0145] Optionally, a handle 25 is provided on the top of the second box body 2 to facilitate taking and placing the second box body 2. Further, the handle 25 is arranged on the top wall of the hard body part 22 and is located outside the first cavity 23.

[0146] Optionally, the top edge of the second box body 2 has a flange bent outward, and the second box body 2 is installed in the first box body 1. The second box body 2 is suspended in the first box body 1 by limiting the flange and the top of the first box body 1. This structural design is not only convenient for disassembly and assembly, but also convenient for installing a sealing ring at the assembly position to achieve a sealed fit, thereby preventing the water vapor in the second chamber 11 from overflowing and affecting other components. It can be understood that the assembly method of the second box body 2 and the first box body 1 is not limited to the above-mentioned methods, and other assembly methods can also be used to stably install the second box body 2 in the first box body 1.

[0147] In the water tank of the above embodiment, the second box body 2 is detachably installed in the first box body 1. In view of the above-mentioned arrangement of the second box body 2, it is also relatively easy to disassemble and assemble. The second box body 2 can be taken out very conveniently without affecting the functional components of the water tank, and the first box body 1, the second box body 2 and the functional mechanism in the water tank can be cleaned or the functional mechanism in the water tank can be maintained.

[0148] See also Figure 1 and Figure 5In some optional embodiments, the water tank further includes a box cover 12, which is flip-mounted on the first box body 1. The box cover 12 can be flipped open and closed. When the box cover 12 is opened, the second box body 2 can be taken in and placed. When the box cover 12 is closed, the top of the second box body 2 can be sealed.

[0149] See also Figures 3 to 11 In some optional embodiments, the water tank further includes a protective bracket 6, which is installed in the second chamber 11. When the software part 21 is not recessed in the first accommodating area 231, the protective bracket 6 is used to support the software part 21; a through water-permeable hole 61 is provided on the protective bracket 6, and the water-permeable hole 61 connects the side of the protective bracket 6 facing the software part 21 and the side facing away from the software part 21.

[0150] Optionally, the protective bracket 6 can be connected and fixed to the hardware part 22 by screws, bonding or other connecting methods, and the hardware part 22 provides installation support for the protective bracket 6; or, the protective bracket 6 can be connected and fixed to the side wall of the first box body 1 by screws, bonding or other connecting methods, and the first box body 1 provides installation support for the protective bracket 6; or, the protective bracket 6 can be placed and fixed on the bottom wall of the first box body 1, and fixed by screws, bonding or other methods.

[0151] In the water tank of the above embodiment, the protective bracket 6 is suitable for supporting the soft part 21 to prevent the soft part 21 from shaking during operation, and to reduce excessive deformation caused by the liquid in the first chamber exerting a large force on the soft part 21 when the liquid in the second chamber is less and the liquid in the first chamber is more, or the fixation between the soft part and the hard part becomes loose, thereby increasing the life of the soft part 21. The water-permeable hole 61 is suitable for connecting the side of the protective bracket 6 facing the soft part 21 and the side facing away from the soft part 21, so that the liquid in the second chamber 11 can enter the protective bracket 6 from the water-permeable hole 61 to squeeze the soft part 21 to make the soft part 21 produce flexible deformation, thereby reducing the volume space of the first chamber 23, and then increasing the volume space of the second chamber 11.

[0152] See also Figures 3 to 11 , Fig.14 and Fig.15 In some optional embodiments, the bottom of the software part 21 and / or the bottom of the protective bracket 6 is designed with a slope structure, and the position of the slope structure close to the functional mechanism is lower than the position of the slope structure away from the functional mechanism, so as to guide the liquid in the first chamber 23 to flow toward the functional mechanism.

[0153] Optionally, the side of the protective bracket 6 facing the soft body 21 has a first slope 62, the position of the first slope 62 close to the functional mechanism is lower than the position of the first slope 62 away from the functional mechanism, and the first slope 62 is suitable for fitting with the bottom surface of the soft body 21 to guide the liquid in the first chamber 23 to flow toward the functional mechanism of the first chamber 23. Further, the height of the first slope 62 gradually decreases from the position away from the functional mechanism to the position close to the functional mechanism. Specifically, the height of the first slope 62 gradually decreases from the direction away from the water inlet end of the conveying pipeline assembly 31 to the direction close to the water inlet end of the conveying pipeline assembly 31, so that the water inlet end of the conveying pipeline assembly 31 is at the lowest position of the second chamber 11, so that the water in the second chamber 11 can be fully discharged.

[0154] Optionally, the delivery pipeline assembly 31, the first liquid level monitoring component 32, and the valve 33 are all arranged on the same side of the hardware part 22, and the bottom wall of the hardware part 22 can be located at the lowest position of the second chamber 11, so that the delivery pipeline assembly 31 and the valve 33 can discharge the water in the second chamber 11 to the maximum extent to avoid waste; the first liquid level monitoring component 32 can monitor the lowest liquid level in the second chamber 11.

[0155] When the first chamber is used to hold clean liquid and the second chamber is used to hold dirty liquid, a sewage outlet connecting the second chamber with the outside of the water tank is provided on the first box body, and the bottom of the second chamber has a second slope, and a position of the second slope close to the sewage outlet is lower than a position of the second slope far from the sewage outlet, and the second slope is suitable for guiding the dirty liquid in the second chamber to flow to the sewage outlet so as to completely discharge the dirty liquid.

[0156] In some optional embodiments, a sewage outlet 13 is further provided on the first housing 1, and the sewage outlet 13 connects the second chamber 11 with the outside of the water tank. The bottom of the second chamber 11 has a second inclined surface 14, and the position of the second inclined surface 14 close to the sewage outlet 13 is lower than the position of the second inclined surface 14 far from the sewage outlet 13. The second inclined surface 14 is suitable for guiding the dirty liquid in the second chamber 11 to flow to the sewage outlet 13, which is conducive to draining the dirty liquid in the second chamber 11. The height of the second inclined surface 14 gradually decreases from the position far from the sewage outlet 13 to the position close to the sewage outlet 13. This structural design is conducive to fully draining the dirty liquid in the second chamber 11.

[0157] See also Fig.14 and Fig.15In some optional embodiments, the water tank includes a first box body 1, an isolation component 7 and a protective bracket 6, the first box body 1 has a liquid storage chamber, the isolation component 7 is installed in the first box body 1, the isolation component 7 has a soft part 21, the soft part 21 divides the liquid storage chamber into a first chamber 23 and a second chamber 11 whose volume ratios can be relatively changed, one of the first chamber 23 and the second chamber 11 is used to contain clean liquid, and the other is used to contain dirty liquid; the protective bracket 6 is installed in the first box body 1, the protective bracket 6 is located on the side of the soft part 21 in the recessed direction facing away from the soft part 21, and supports the soft part 21; the protective bracket 6 is provided with a through water-permeable hole 61, and the water-permeable hole 61 connects the side of the protective bracket 6 facing the soft part 21 and the side facing away from the soft part 21.

[0158] In the water tank of the above embodiment, the isolation component 7 has a soft part 21, so that the volume of the first chamber 23 and the volume of the second chamber 11 can be relatively changed, reducing space waste and facilitating the production of small-volume water tanks. In addition, a protective bracket 6 suitable for supporting the soft part 21 is provided to prevent the soft part 21 from shaking during operation, and to reduce excessive deformation caused by the large force exerted by the liquid in the first chamber on the soft part 21 when the soft part 21 has less liquid in the second chamber and more liquid in the first chamber, or loosening of the fixation between the soft part and the hard part, thereby increasing the life of the soft part 21. The water-permeable hole 61 is suitable for connecting the side of the protective bracket 6 facing the soft part 21 and the side facing away from the soft part 21, so that the liquid in the second chamber 11 can enter the protective bracket 6 from the water-permeable hole 61 to squeeze the soft part 21 so that the soft part 21 produces flexible deformation, thereby reducing the volume space of the first chamber 23 and increasing the volume space of the second chamber 11.

[0159] See also Fig.14 and Fig.15 In some optional embodiments, the isolation component 7 is detachably installed in the first box body 1.

[0160] Optionally, a handle 25 is provided on the isolation component 7 for easy removal.

[0161] In the water tank of the above embodiment, the isolation component 7 is detachably installed in the first box body 1, which is convenient for disassembly and assembly, and it is convenient to take out the second box body 2 and clean the first box body 1.

[0162] See also Fig.14 and Fig.15In some optional embodiments, a valve 33 that can be opened in one direction is provided on the isolation component 7 to prevent the dirty liquid from flowing back into the clean liquid and contaminating it. The first chamber 23 and the second chamber 11 are adapted to be connected when the valve 33 is opened, so that the clean liquid flows to the chamber containing the dirty liquid. By providing the valve 33 that can connect the first chamber 23 and the second chamber 11, the clean liquid can be introduced into the chamber to be cleaned for cleaning, and the water tank can be cleaned without disassembling parts, especially the chamber containing the dirty liquid, and the cleaning operation is simple and convenient.

[0163] See also Fig.14 In an optional embodiment, the first chamber 23 and the second chamber 11 are distributed in the horizontal direction.

[0164] See also Fig.14 In an optional embodiment, the first chamber 23 and the second chamber 11 are distributed along the vertical direction.

[0165] Optionally, the first chamber 23 is located above the second chamber 11, or the first chamber 23 is located below the second chamber 11. Further, the first chamber 23 is located above the second chamber 11, the first chamber 23 is used to contain clean liquid, and the second chamber 11 is used to contain dirty liquid.

[0166] See also Fig.14 and Fig.15 In some optional embodiments, an overflow port 24 is provided on the upper portion of the isolation component 7 for connecting the first chamber 23 and the second chamber 11. The overflow port 24 is provided on the isolation component 7 for connecting the first chamber 23 and the second chamber 11, so that one of the first chamber 23 and the second chamber 11 can receive the liquid overflowing from the other. For example, when the water in the first chamber 23 is a clean liquid, the clean liquid in the first chamber 23 can directly overflow to the second chamber 11 through the overflow port 24; in addition, the overflow port 24 can also keep the air pressure of the first chamber 23 and the second chamber 11 consistent, so that the soft part 21 can move and deform normally.

[0167] See also Figure 1 and Figure 5 , Fig.14 and Fig.15 In some optional embodiments, the water tank further includes a box cover 12, which is flip-mounted on the first box body 1. The box cover 12 can be flipped open and closed. When the box cover 12 is opened, the second box body 2 can be taken in and placed. When the box cover 12 is closed, the top of the second box body 2 can be sealed.

[0168] See also Figures 3 to 11 , Fig.14 and Fig.15In some optional embodiments, the portion of the software part 21 that contacts the protective bracket 6 has an interference fit, and the portion of the software part 21 placed on the protective bracket 6 has redundancy, ensuring that the software part 21 can fully contact the protective bracket 6 and avoid shaking or falling of the software part 21 causing failure of the software part 21, which is beneficial to extending the service life of the software part 21 and ensuring the performance of the software part 21.

[0169] See also Figures 1 to 5 , Figure 14 to Figure 15 In some optional embodiments, the present application provides a cleaning device, including the water tank 100 in any of the above embodiments.

[0170] In an optional embodiment, the cleaning device is a base station, and the water tank 100 is installed in the base station. The base station also includes a cleaning disk, sewage suction ports distributed on the cleaning disk, and a sewage discharge port 82 connected to the sewage suction port. The cleaning disk is used to carry or collect dirty liquid formed by the wet cleaning parts of the self-mobile device; the sewage suction channel 5 of the water tank 100 is connected to the sewage suction port on the cleaning disk through the sewage discharge port 82 to suck the dirty liquid on the cleaning disk into the first chamber 23 or the second chamber 11 for accommodating dirty liquid.

[0171] In an optional embodiment, the cleaning device is a self-moving device, the water tank 100 is installed in the self-moving device, and the self-moving device also includes a wet cleaning piece for wet cleaning the working surface, a sewage suction port connected to the wet cleaning piece, and a sewage discharge port 82 connected to the sewage suction port; the sewage suction channel 5 of the water tank 100 is connected to the sewage suction port through the sewage discharge port 82 to suck the dirty liquid on the wet cleaning piece into the first chamber 23 or the second chamber 11 for accommodating the dirty liquid.

[0172] In an optional embodiment, the cleaning device is a self-moving device, and the water tank 100 is installed in the self-moving device. The self-moving device also includes a sewage collection component for collecting sewage on the working surface, a sewage suction port distributed on the sewage collection component and connected to the working surface, and a sewage discharge port 82 connected to the sewage suction port; the sewage suction channel 5 of the water tank 100 is connected to the sewage suction port through the sewage discharge port 82 to suck the dirty liquid on the working surface into the first chamber 23 or the second chamber 11 for accommodating the dirty liquid.

[0173] In an optional embodiment, the self-moving device has the function of automatic movement, which is simple, convenient, labor-saving and has a wider range of applications.

[0174] The cleaning device of the above embodiment has the advantages of avoiding space waste of the water tank 100 and having a good cleaning effect, and also has the advantages of being easy to move and labor-saving to operate.

[0175] The water tank and cleaning equipment of the utility model solve the problem that the water tank occupies a large space due to the separate arrangement of the clean water tank and the sewage tank by sharing part of the volume space between the first chamber 23 and the second chamber 11, effectively improving the volume utilization rate of the water tank, and can more efficiently realize the conversion and storage of clean liquid and dirty liquid, saving space, thereby improving the overall space utilization rate of the water tank and the cleaning equipment as well as the cleaning endurance and cleaning effect, which is conducive to small-volume production so as to adapt to more application scenarios and improve the application value; in addition, the soft part 21 of the water tank can also effectively alleviate the water swinging of the chamber containing dirty liquid, reduce the amplitude of water swinging, improve the safety guard line, protect the negative pressure pumping device 41, and avoid the failure of the negative pressure pumping device 41 due to water suction.

[0176] In the description of this specification, the description with reference to the terms "this embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0177] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A water tank, characterized in that: include: The first box; as well as A second box body is installed in the first box body; the second box body has a first chamber, and the second chamber is formed between the outer wall of the second box body and the inner wall of the first box body; Wherein, the second box body includes a hard part and a soft part, the hard part and the soft part are connected to form the first chamber, and the soft part can be deformed to change the volume ratio of the first chamber and the second chamber; One of the first chamber and the second chamber is used to contain a clean liquid, and the other is used to contain a dirty liquid.

2. The water tank according to claim 1, characterized in that: The hard part has a first accommodating area with a first opening at one end, the soft part is arranged at the first opening, and the first accommodating area and the soft part enclose the first chamber; When the software part is recessed in the first accommodating area, the hardware part has a mounting part staggered from the software part, and the mounting part is used for mounting functional mechanisms of the first chamber and / or the second chamber.

3. The water tank according to claim 2, characterized in that: When the soft body part is not recessed in the first accommodating area, the soft body part has a second accommodating area with a second opening at one end, and the second opening of the soft body part is sealed and connected to the first opening of the hard body part; and the first accommodating area and the second accommodating area are communicated to form the first chamber.

4. The water tank according to claim 3, characterized in that When the soft body portion is not recessed in the first accommodating area, the first opening is located above the soft body portion.

5. The water tank according to claim 4, characterized in that: The first opening is arranged obliquely.

6. The water tank according to any one of claims 2 to 5, characterized in that: The side wall of the upper end of the hardware part is provided with an inwardly recessed escape area, the mounting part includes the escape area, and the escape area is located above the software part.

7. The water tank according to claim 6, characterized in that The functional mechanism includes a sewage suction channel, and the avoidance area and the inner wall of the first box body enclose at least a portion of the sewage suction channel, and / or the avoidance area is used for installing at least a portion of the sewage suction channel; one end of the sewage suction channel is connected to the outside of the water tank, and the other end is connected to a negative pressure extraction device, and the negative pressure extraction device is suitable for extracting a negative pressure from the sewage suction channel so as to suck the dirty liquid into a chamber for containing the dirty liquid through the sewage suction channel.

8. The water tank according to claim 7, characterized in that The first chamber is used to contain clean liquid, and the second chamber is used to contain dirty liquid.

9. The water tank according to claim 7, characterized in that: It also includes a gas-liquid separation device arranged in the avoidance area, the gas-liquid separation device includes a shell, the shell has a liquid inlet, an air outlet and a liquid discharge port, the liquid inlet is connected to the sewage suction channel; the liquid discharge port is connected to a chamber for accommodating dirty liquid, and the air outlet is connected to the air inlet of the negative pressure extraction device.

10. The water tank according to claim 9, characterized in that The gas-liquid separation device includes at least one deflection component arranged in the shell, and the deflection component has at least one arcuate surface, and the arcuate surface is recessed from the liquid inlet side toward the gas outlet side. After the fluid in the sewage suction channel passes through the liquid inlet and the arcuate surface in sequence, the liquid in the fluid is discharged through the liquid discharge port, and the gas in the fluid is discharged through the gas outlet.

11. The water tank according to claim 10, characterized in that The liquid discharge port is located below the arc-shaped surface, and the air outlet is located above the arc-shaped surface.

12. The water tank according to claim 11, characterized in that The baffle component includes at least one first baffle, the liquid discharge port and the air outlet are located on one side of the first baffle, and the liquid inlet is located on the other side of the first baffle. One end of the first baffle is fixed to the shell, and a connecting port is formed between the other end and the side wall of the shell, so that the cavities on both sides of the first baffle in the shell are connected.

13. The water tank according to claim 12, characterized in that The deflector component includes a second deflector, the air outlet is arranged on the side wall of the shell, the liquid discharge port is arranged on the bottom wall of the shell, and the arc surface of the second deflector is arranged on the inner wall surface of the side wall where the air outlet is located.

14. The water tank according to claim 13, characterized in that An end of the first baffle plate close to the connecting port is provided with a guide portion, and the guide portion is bent toward the arc surface of the rear first baffle plate or the second baffle plate located on the air flow path.

15. The water tank according to claim 9, characterized in that An overflow port communicating the first chamber and the second chamber is provided on the hardware part, and the overflow port is located on the fluid flow path of the sewage suction channel.

16. The water tank according to claim 15, characterized in that A second liquid level monitoring component suitable for monitoring a preset maximum liquid level in the second chamber is installed in the second chamber, and the preset maximum liquid level monitored by the second liquid level monitoring component is lower than the drain port, the drain port is lower than the air outlet, and the drain port is lower than the overflow port.

17. The water tank according to any one of claims 9 to 16, characterized in that: The sewage suction channel includes a first section and a second section connected to the first section, the second section is enclosed between the avoidance area and the inner wall of the first box body, and / or the avoidance area is used for the installation of the second section, the second section is connected to the negative pressure extraction device, and the first section is connected to the outside of the water tank.

18. The water tank according to claim 17, characterized in that The gas-liquid separation device is arranged in the second section, the liquid discharge port is arranged on the bottom wall of the second section, and the second section extends in the horizontal direction.

19. The water tank according to claim 18, characterized in that The upper end outlet of the first section connected to the second section is lower than the liquid discharge port.

20. The water tank according to claim 17, characterized in that The first section is formed on the outer side wall of the first box body; or, the first section is defined by a portion of the outer side wall of the hardware part and a portion of the inner side wall of the first box body.

21. The water tank according to claim 17, characterized in that The water tank is installed on the cleaning equipment, and the cleaning equipment also includes a cleaning component, a sewage suction port and a sewage discharge port. The sewage suction port is used to suck dirty liquid on the cleaning component or dirty liquid on the working surface cleaned by the cleaning component; the sewage discharge port connects the sewage suction port and the sewage suction channel to suck the dirty liquid into the second chamber; the sewage suction port is arranged along a preset direction of the cleaning component with the sewage discharge port as the center, and the first section extends in a vertical direction and is formed with a lower end inlet connected to the sewage discharge port.

22. The water tank according to any one of claims 2 to 5, characterized in that: The functional mechanism of the first chamber comprises: a valve adapted to be opened in one direction to connect the first chamber and the second chamber so that the clean liquid flows to the chamber containing the dirty liquid; and / or, a delivery pipeline assembly, used for connecting the first chamber with the outside of the water tank; and / or, The first liquid level monitoring component is used to monitor the liquid level in the first chamber.

23. The water tank according to claim 22, characterized in that The top wall of the hardware part is also provided with a third opening connected to the first chamber, and the third opening includes a placement space for accommodating a fixed platform and a reserved operating space; the fixed platform is installed on the mounting part, and the fixed platform is used for installing the functional mechanism of the first chamber.

24. The water tank according to claim 23, characterized in that The valve core of the valve is installed on the bottom wall of the hardware part, one end of the valve stem of the valve is movably arranged on the fixed platform, the other end of the valve stem is connected to the valve core, and the pull ring of the valve is installed on one end of the valve stem and exposed at the third opening. The valve stem is driven to move by the pull ring, and the valve core on the bottom of the valve stem is driven to move to open or close the valve.

25. The water tank according to claim 23, characterized in that Part of the fixed platform is formed as a water and electricity compartment, and a transfer component suitable for external connection of at least part of the functional mechanism is sealed and installed in the water and electricity compartment.

26. The water tank according to any one of claims 2 to 5, characterized in that: The water tank also includes a protective bracket, which is installed in the second chamber; when the software part is not recessed in the first accommodating area, the protective bracket is used to support the software part; the protective bracket is provided with a through water-permeable hole, and the water-permeable hole connects the side of the protective bracket facing the software part and the side facing away from the software part.

27. The water tank according to claim 26, characterized in that The protective bracket has a first slope on one side facing the software part, wherein a position of the first slope close to the functional mechanism is lower than a position of the first slope away from the functional mechanism, and the first slope is suitable for fitting with the bottom surface of the software part to guide the liquid in the first chamber to flow toward the functional mechanism of the first chamber.

28. The water tank according to any one of claims 7, 9 to 16, characterized in that: The first chamber is used to hold clean liquid, and the second chamber is used to hold dirty liquid; the first box body is provided with a sewage outlet connecting the second chamber with the outside of the water tank, and the bottom of the second chamber has a second slope, the position of the second slope close to the sewage outlet is lower than the position of the second slope away from the sewage outlet, and the second slope is suitable for guiding the dirty liquid in the second chamber to flow to the sewage outlet.

29. The water tank according to any one of claims 1 to 5, characterized in that: The second box body is detachably installed in the first box body.

30. A water tank, characterized in that: include: A first box body having a liquid storage cavity; An isolation component, the isolation component is installed in the first box, the isolation component has a soft part, the soft part divides the liquid storage cavity into a first chamber and a second chamber whose volume ratios can be relatively changed; one of the first chamber and the second chamber is used to hold clean liquid, and the other is used to hold dirty liquid; as well as A protection bracket, which is installed in the first box, is located on a side of the software part facing away from the concave direction of the software part, and supports the software part; The protective bracket is provided with a through water-permeable hole, and the water-permeable hole is suitable for connecting the side of the protective bracket facing the soft body part and the side facing away from the soft body part.

31. The water tank according to claim 30, characterized in that The isolation component is provided with a one-way opening valve, and when the valve is opened, the first chamber and the second chamber are connected to each other, so that the clean liquid flows to the chamber containing the dirty liquid.

32. The water tank according to claim 30, characterized in that The isolation component is detachably installed in the first box.

33. The water tank according to claim 30, characterized in that The first chamber and the second chamber are distributed in a vertical direction; the first chamber is located above the second chamber, and the first chamber is used to contain a clean liquid, and the second chamber is used to contain a dirty liquid.

34. The water tank according to claim 30, characterized in that The protective bracket has a first slope on one side facing the soft part, wherein the position of the first slope close to the functional mechanism of the first chamber is lower than the position of the first slope away from the functional mechanism, and the first slope is suitable for fitting with the bottom surface of the soft part to guide the liquid in the first chamber to flow toward the functional mechanism of the first chamber.

35. A cleaning device, characterized in that: Comprising a water tank as claimed in any one of claims 1 to 34.

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