Water filtering piece, liquid tank structure and cleaning equipment

Abstract

The invention provides a water filtering piece, a liquid tank structure and cleaning equipment. The water filtering piece comprises a main baffle and an auxiliary baffle wall. The main baffle is provided with a first side face and a second side face which are arranged oppositely, and the auxiliary baffle wall is arranged on the second side face in a protruding mode and divides the second side face into a first area and a second area. The main baffle is configured to allow liquid to pass through the second area from the side where the first side is located to reach the side where the second side is located; and when the main baffle and the horizontal plane form an included angle and the liquid level of the liquid is located in the second area, the auxiliary baffle wall is used for preventing the liquid from reaching the first area from the second area.

Description

Technical Field

[0001] This application belongs to the field of cleaning equipment technology, and more specifically, relates to a water filter element, a liquid tank structure, and a cleaning device. Background Technology

[0002] Handheld floor scrubbers are a type of manual indoor cleaning equipment.

[0003] Generally, the wastewater tank of a handheld floor scrubber is located inside the machine body. Negative pressure is used to suck in and store dirt from the surface being cleaned. When the handheld scrubber is in a horizontal position, the liquid in the wastewater tank can easily create significant agitation. This agitated wastewater can be swept into the air outlet, causing liquid to mix with the suction air. This liquid can then flow into the motor, damaging the motor and other components. Summary of the Invention

[0004] The purpose of this application is to provide a water filter, a liquid tank structure, and a cleaning device to solve the technical problem that liquid in existing cleaning devices is prone to agitation when changing its usage state, which can lead to damage to the motor along with the gas.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0006] A water filter element is provided, the water filter element including a main baffle and an auxiliary baffle;

[0007] The main baffle has a first side and a second side that are opposite to each other, and the auxiliary baffle protrudes from the second side, dividing the second side into a first region and a second region.

[0008] The main baffle is configured to allow liquid to pass through the second region from the side where the first side is located to the side where the second side is located; and when the main baffle is at an angle to the horizontal plane and the liquid level is in the second region, the auxiliary baffle is used to block the liquid from reaching the first region from the second region.

[0009] In some embodiments, the first region is provided with a plurality of through holes penetrating the thickness of the main baffle, the plurality of through holes being arranged sequentially at intervals along the extension direction of the auxiliary baffle, and the plurality of through holes being spaced apart from the auxiliary baffle.

[0010] In some embodiments, an annular baffle wall protrudes from the first region, the through hole is located inside the annular baffle wall, and the annular baffle wall and the auxiliary baffle wall are spaced apart.

[0011] In some embodiments, two connecting walls protrude from the first region, and the extended ends of the auxiliary baffle are respectively connected to the annular baffle through the two connecting walls.

[0012] In some embodiments, there are multiple annular baffles, which are sequentially connected along the extension direction of the auxiliary baffles, and each annular baffle has at least one through hole on its inner side.

[0013] In some embodiments, a secondary baffle is provided on the first region, the secondary baffle being spaced apart from the auxiliary baffle, and a plurality of the through holes being provided on the side of the secondary baffle away from the auxiliary baffle.

[0014] In some embodiments, two limiting walls protrude from the second region, and the two limiting walls are respectively connected at an angle to the auxiliary wall. The two limiting walls and the auxiliary wall together define the second region.

[0015] In some embodiments, a fitting hole is provided at the center of the second region. The fitting hole is used to seal the fitting liquid collection channel, which is used to transport the external liquid to the side where the first side is located.

[0016] The beneficial effects of the water filter element provided in this application are as follows:

[0017] Compared with existing technologies, the water filter element provided in this application has a main baffle with a first side and a second side disposed opposite to each other, and an auxiliary baffle protruding from the second side, dividing the second side into a first region and a second region. When this water filter element is applied to a liquid tank structure, liquid can pass from the side containing the first side through the second region to the side containing the second side. When the liquid tank structure is tilted, that is, when the main baffle forms an angle with the horizontal plane and the liquid level is in the second region, the auxiliary baffle prevents liquid from flowing from the second region to the first region. For example, when the liquid tank structure collects sewage and the liquid generates significant water agitation, the agitated sewage is less likely to be agitated to the first side, that is, the side where the exhaust channel is located. The liquid does not enter the motor with the gas flow, reducing the probability of damage to the motor and other components.

[0018] Another object of this application is to provide a liquid tank structure having a liquid collection chamber and an expansion chamber communicating with the liquid collection chamber;

[0019] The liquid tank structure includes a water filter element as described above. The second side of the water filter element is the liquid collection chamber. The expansion chamber is located beside the water filter element and extends from the second side to the first side.

[0020] In some embodiments, the liquid tank structure further includes a liquid collection channel, and the second region has a fitting hole in which the liquid collection channel is fitted. Part of the liquid collection channel is located on the side containing the first side and has a liquid outlet, through which liquid enters the side containing the second side from the side containing the first side and reaches the liquid collection chamber; another part of the liquid collection channel is located on the side containing the second side and has a liquid inlet.

[0021] In some embodiments, the liquid tank structure further includes a ventilation channel having an interconnected air inlet and an air outlet, the air inlet being disposed vertically between the liquid outlet and the liquid collection chamber. The ventilation channel provides suction air from the air inlet to the air outlet, the suction air being used to draw liquid from the liquid inlet to the liquid outlet, and separating from the liquid as the liquid falls from the liquid outlet into the liquid collection chamber and entering the air inlet.

[0022] In some embodiments, the first region is provided with a plurality of through holes penetrating the thickness of the main baffle, the plurality of through holes being arranged sequentially at intervals along the extension direction of the auxiliary baffle, and the plurality of through holes being spaced apart from the auxiliary baffle; the expansion cavity is located on the side of the water filter element opposite to the plurality of through holes.

[0023] The beneficial effects of the liquid tank structure provided in this application compared to the prior art are the same as the beneficial effects of the water filter element provided in this application compared to the prior art, and will not be repeated here.

[0024] Another object of this application is to provide a cleaning device that includes the liquid tank structure described above.

[0025] The advantages of the cleaning equipment provided in this application compared to the prior art are the same as the advantages of the water filter and liquid tank structure provided in this application compared to the prior art, and will not be repeated here. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 An exploded view of a liquid tank structure provided in an embodiment of this application;

[0028] Figure 2 A longitudinal sectional view of a liquid tank structure provided in an embodiment of this application, showing the flow path of the liquid;

[0029] Figure 3 This is a longitudinal sectional view of a liquid tank structure provided in an embodiment of this application, showing the flow path of the suction air;

[0030] Figure 4 This is a side view of a liquid tank structure provided in an embodiment of this application, wherein one side wall of the tank body has been removed;

[0031] Figure 5 This is a side view of a liquid tank structure provided in an embodiment of this application, wherein one side wall of the tank body has been removed;

[0032] Figure 6 This is a side view of a liquid tank structure provided in an embodiment of this application, wherein one side wall of the tank body has been removed;

[0033] Figure 7 A schematic diagram illustrating the adaptation of a support structure and a liquid collection channel according to an embodiment of this application;

[0034] Figure 8 A schematic diagram illustrating the adaptation of a support structure and a liquid collection channel according to an embodiment of this application;

[0035] Figure 9 This is a schematic diagram of a support structure provided in one embodiment of this application;

[0036] Figure 10 A bottom side view of an assembly of a support body and a HEPA module provided in an embodiment of this application;

[0037] Figure 11 A schematic diagram of a support structure provided in an embodiment of this application;

[0038] Figure 12 This is a schematic diagram of the assembly of the support structure and the box body provided in one embodiment of this application;

[0039] Figure 13 A schematic diagram showing a liquid tank structure with a liquid detection element installed according to an embodiment of this application;

[0040] Figure 14 A schematic diagram of a water filter element provided in an embodiment of this application;

[0041] Figure 15 A schematic diagram showing a liquid tank structure with a liquid detection element installed according to an embodiment of this application;

[0042] Figure 16 This is a longitudinal sectional view of a liquid tank structure provided in an embodiment of this application;

[0043] Figure 17 This is a longitudinal sectional view of a liquid tank structure provided in an embodiment of this application;

[0044] Figure 18 This is a schematic diagram of a liquid detection device provided in one embodiment of this application;

[0045] Figure 19 A longitudinal sectional view of a liquid detection device provided in an embodiment of this application;

[0046] Figure 20 This is a schematic diagram of a liquid detection device provided in one embodiment of this application;

[0047] Figure 21 An exploded view of a liquid tank structure provided in another embodiment of this application;

[0048] Figure 22 A longitudinal sectional view of a liquid tank structure provided in another embodiment of this application, showing the flow path of the liquid;

[0049] Figure 23 A longitudinal sectional view of a liquid tank structure provided in another embodiment of this application, showing the flow path of the suction air;

[0050] Figure 24 A side view of a liquid tank structure provided in another embodiment of this application, wherein one side wall of the tank body is removed;

[0051] Figure 25 A side view of a liquid tank structure provided in another embodiment of this application, wherein the side wall of the tank body is removed;

[0052] Figure 26 A side view of a liquid tank structure provided in another embodiment of this application, wherein one side wall of the tank body is removed;

[0053] Figure 27 A schematic diagram showing the adaptation of the support structure and liquid collection channel to another embodiment of this application;

[0054] Figure 28 This is a schematic diagram of a liquid tank structure provided in another embodiment of this application, wherein the liquid collection chamber is omitted;

[0055] Figure 29 A schematic diagram of a support body provided in another embodiment of this application;

[0056] Figure 30 A longitudinal sectional view provided for another embodiment of this application;

[0057] Figure 31 A schematic diagram of the scaffold structure and liquid collection channel assembly provided in another embodiment of this application;

[0058] Figure 32 A schematic diagram of a liquid detection element provided in another embodiment of this application;

[0059] Figure 33 A schematic diagram of a liquid detection element provided in another embodiment of this application;

[0060] Figure 34 A longitudinal sectional view of a liquid detection element provided in another embodiment of this application.

[0061] The following are the labeling elements in the figure:

[0062] 10. Box body; 20. Support structure; 30. Liquid collection channel; 40. Ventilation channel; 50. Baffle; 60. Liquid level detection element; 70. HEPA filter assembly; 80. Air passageway;

[0063] 101. Bottom wall; 102. Opening; 103. First side wall; 104. Second side wall; 105. Liquid collection chamber; 106. Separation chamber; 107. Expansion chamber; 108. Pressure relief chamber; 109. Buffer zone;

[0064] 201. Support body; 202. Filter element; 201a. Top end; 201b. Bottom end;

[0065] 2011, Top sealing section; 2012, Cavity section; 2012a, Second partition plate; 2012b, Adaptive recessed area; 2012c, Partition plate; 2012d, Detection cavity; 2012e, First partition plate; 2012f, Second liquid hole;

[0066] 2021. Main baffle; 2022. Auxiliary baffle; 2023. Through hole; 2024. Annular baffle; 2025. Connecting wall; 2026. Restricting baffle; 2027. Mounting hole; 2029. Mounting slot;

[0067] 2021a, First side view; 2021b, Second side view; 2021d, First region; 2021c, Second region;

[0068] 301. Liquid inlet; 302. Liquid outlet;

[0069] 401. Air inlet; 402. Air outlet; 403. Air outlet structure; 4011. First air inlet; 4012. Second air inlet;

[0070] 601. Control connection part; 602. Conductive part; 603. Enclosure part; 604. Detection end; 605. First liquid level sensing element; 606. First liquid level sensing element; 607. Housing;

[0071] 6071, First detection bit; 6072, Second detection bit;

[0072] 701. Mounting housing; 702. Filter element; 703. Release element. Detailed Implementation

[0073] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0074] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0075] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "level", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0076] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0077] The liquid tank structure and cleaning equipment provided in the embodiments of this application, as well as the water filter 202 and liquid detection element 60 in the liquid tank structure, will now be described.

[0078] Please see Figures 1 to 10 ,as well as Figures 21 to 31 As shown, the liquid tank structure provided in this embodiment includes a liquid collection chamber 105, a liquid collection channel 30, and a ventilation channel 40. The liquid collection channel 30 has an interconnected liquid inlet 301 and a liquid outlet 302, with the height of the liquid outlet 302 being higher than the height of the liquid inlet 301. The liquid collection chamber 105 has a maximum liquid level line, and the height of the liquid outlet 302 is higher than the maximum liquid level line. The ventilation channel 40 has an interconnected air inlet 401 and an air outlet 402, with the air inlet 401 positioned vertically between the liquid outlet 302 and the maximum liquid level line. The ventilation channel 40 provides suction air from the air inlet 401 to the air outlet 402. The suction air is used to draw liquid from the liquid inlet 301 to the liquid outlet 302, and when the liquid falls from the liquid outlet 302 into the liquid collection chamber 105, it separates from the liquid and enters the air inlet 401.

[0079] In the liquid tank structure provided in this embodiment, the height of the outlet 302 of the liquid collection channel 30 is higher than the height of the inlet 301. External liquid can enter the liquid collection channel 30 from the inlet 301 using the force of the suction fan, and is transported upwards along the height direction to the outlet 302. The height of the outlet 302 is higher than the highest liquid level line of the liquid collection chamber 105. Using the force of the suction fan and / or the weight of the liquid, the liquid flows downwards from the outlet 302 into the liquid collection chamber 105. Since the air inlet 401 of the suction channel 40 is located between the outlet 302 and the highest liquid level line along the height direction, when liquid falls from the outlet 302 into the liquid collection chamber 105, the suction fan separates from the liquid and enters the air inlet 401. During this process, the suction direction of the suction air changes relative to the direction in which the liquid enters the liquid collection chamber 105. Due to its own weight and inertial force, the liquid falls into the liquid collection chamber 105 and is not easily carried into the suction channel 40 by the suction air, thereby avoiding the problem of liquid entering the motor and causing damage to the electrodes.

[0080] In some embodiments, the liquid collection channel 30 extends along the height direction, and the liquid inlet 301 and the liquid outlet 302 are arranged opposite each other along the height direction. The liquid collection chamber 105 is located beside or around a portion of the liquid collection channel 30, and another portion of the liquid collection channel 30 is located above the liquid collection chamber 105.

[0081] The inlet 301 and outlet 302 are arranged opposite each other along the height direction, allowing wastewater generated by the cleaning equipment to be directly transported upwards to the outlet 302, making the wastewater collection path more convenient. The collection chamber 105 is located beside or around a portion of the collection channels 30, while another portion of the collection channels 30 is located above the collection chamber 105, integrating some of the collection channels 30 into the collection chamber 105 to further improve the integration.

[0082] More importantly, the liquid collection channel 30 is set along the height direction. The external liquid is transported upward along the height direction. After flowing out of the liquid outlet 302, the liquid direction changes by about 1° and then falls downward along the height direction. The sharp turn of the liquid makes it easier for the liquid to fall from the liquid outlet 302 and enter the liquid collection chamber 105. This increases the inertia of the liquid entering the liquid collection chamber 105, reduces the probability of the liquid being carried away by the suction air, further reduces the liquid content in the suction air, and reduces the probability of the motor being damaged.

[0083] In other embodiments, the liquid collection channel 30 may also be angled to the height direction, with the liquid being transported from bottom to top at an inclined angle. The liquid collection channel 30 may also be located beside the liquid collection chamber 105, without needing to be partially integrated into the liquid collection chamber 105.

[0084] Reference Figures 21 to 31As shown, in some embodiments, the liquid tank structure further includes a first partition 2012e, which extends along the height direction and isolates the liquid collection channel 30 and the exhaust channel 40 on both sides along a first direction, wherein the first direction is perpendicular to the height direction. The air inlet 401 includes a first air inlet 4011 and a second air inlet 4012. The first air inlet 4011 is located on the side where the liquid collection channel 30 is located, and the second air inlet 4012 is located on the side where the exhaust channel 40 is located. The first air inlet 4011 and the second air inlet 4012 are respectively connected to the liquid collection chamber 105. The liquid collection chamber 105 has an air passage 80, which is located between the first air inlet 4011, the second air inlet 4012, and the highest liquid level line. The suction air flows sequentially through the liquid outlet 302, the first air inlet 4011, the air passage 80, the second air inlet 4012, and the exhaust channel 40.

[0085] By setting the first partition 2012e, the first partition 2012e completely isolates the part of the liquid collection channel 30 located above the liquid collection chamber 105 from the exhaust channel 40. The first air inlet 4011 located on the side of the liquid collection channel 30 and the second air inlet 4012 located on the side of the exhaust channel 40 are connected to the air passage 80 inside the liquid collection chamber. In this way, the path of the liquid flowing out of the liquid outlet 302 into the liquid collection chamber 105 and the path of the exhaust air through the first air inlet 4011 and the air passage 80 are clearly separated, which is more conducive to the separation between gas and liquid.

[0086] It should be noted that the shape, size, and number of the first air inlet 4011 and the second air inlet 4012 can be specifically designed according to the needs of the specific cleaning equipment. The shape of the first air inlet 4011 and the second air inlet 4012 can be regular or irregular. There can be one or more first air inlets 4011. There can be one or more second air inlets 4011. When there are multiple first air inlets 4011 and second air inlets 4012, the first air inlets 4011 and the second air inlets 4012 can be arranged sequentially along a first direction.

[0087] Reference Figures 1 to 17 As shown, in some embodiments, the liquid tank structure further includes a second partition 2012a, which extends along the height direction. The second partition 2012a and the liquid collection chamber 105 are spaced apart along the height direction to form an air inlet 401. Part of the liquid collection channel 30 and the exhaust channel 40 are respectively disposed on both sides of the second partition 2012a and the air inlet 401 along a first direction, which is perpendicular to the height direction.

[0088] By setting a second partition 2012a, the liquid collection channel 30 located above the liquid collection chamber 105 is isolated from the exhaust channel 40. This effectively separates the path of the liquid flowing from the outlet 302 to the liquid collection chamber 105 from the path of the exhaust air, thus facilitating gas-liquid separation. Furthermore, the second partition 2012a and the liquid collection chamber 105 are spaced apart along the height direction to form an air inlet 401, meaning the air inlet 401 is positioned closer to the liquid collection chamber 105. This allows for better utilization of airflow to carry the liquid from the outlet 302 to above the liquid collection chamber 105, where the airflow then changes direction and separates from the liquid. This improves the utilization of airflow, and the gas-liquid separation is most effective at this location, further reducing the probability of motor damage.

[0089] In other embodiments, the air inlet 401 can be positioned at a distance from the liquid collection chamber 105 along the height direction. For example, if the liquid collection channel 30 is not attached to the second partition 2012a, it can be positioned at the center of the second partition 2012a, or at a position slightly below the center.

[0090] It should be noted that the shape, size, and number of air inlets 401 can be specifically designed according to the needs of the specific cleaning equipment. The shape of the air inlet 401 can be regular or irregular. There can be one air inlet 401 or multiple air inlets 401. When there are multiple air inlets 401, they can be arranged sequentially along the height direction, or sequentially along the circumference of the liquid collection channel 30. Multiple air inlets 401 can be located at the same height, for example, all close to the liquid collection chamber 105.

[0091] In some embodiments, the portion of the first partition 2012e or the second partition 2012a opposite to the liquid collection channel 30 is in close contact, and the path of liquid falling from the outlet 302 into the liquid collection chamber 105 is located on the side of the liquid collection channel 30 that is not in contact with the first partition 2012e or the second partition 2012a. For example, the first partition 2012e or the second partition 2012a is provided with a matching recessed area 2012b, and a portion of the liquid collection channel 30 is accommodated in the matching recessed area 2012b. The matching recessed area 2012b facilitates the positioning of the liquid collection channel 30, ensuring a good fit between the liquid collection channel 30 and the first partition 2012e or the second partition 2012a.

[0092] The liquid collection channel 30 is in close contact with the first partition 2012e or the second partition 2012a. This ensures that the path of liquid falling from the outlet 302 into the collection chamber 105 is limited to the portion away from the first partition 2012e or the second partition 2012a, further isolating the liquid path from the outlet 302 into the collection chamber 105 from the suction path. This increases the horizontal distance between the liquid path from the outlet 302 into the collection chamber 105 and the suction channel 40, allowing the suction and liquid to travel a certain distance horizontally before reaching the suction channel 40. This further filters out the liquid in the suction, improving the efficiency and effectiveness of gas-liquid separation and reducing the probability of motor damage.

[0093] In other embodiments, the liquid collection channel 30 may also be spaced apart from the first partition 2012e or the second partition 2012a. The distance between the partitions may be large or small. The path of the liquid falling from the outlet 302 into the liquid collection chamber 105 may be located in the full circumference of the liquid collection channel 30, thereby increasing the unit flow rate of the liquid falling into the liquid collection chamber 105 and improving the liquid collection efficiency.

[0094] In some embodiments, the liquid tank structure further includes multiple baffles 50, which are disposed on the channel wall of the exhaust channel 40 and are arranged sequentially at intervals along the extension direction of the exhaust channel 40. The multiple baffles 50 allow the suction air to flow through the exhaust channel 40.

[0095] For example, multiple baffles 50 can be set on the same side wall of the exhaust duct 40, or multiple baffles 50 can be randomly set on different side walls of different sides. When the exhaust air flows through multiple baffles 50, the liquid in the gas is filtered out by friction and obstruction between the multiple baffles 50, which further improves the efficiency and effect of gas-liquid separation and helps to further reduce the probability of motor damage.

[0096] In other embodiments, the number of baffles 50 can also be one. For example, the baffle 50 is a plate structure with one or more holes in the middle. Through the middle hole or the multiple holes on the baffle 50, gas can pass through and the liquid can be filtered to achieve gas-liquid separation.

[0097] It should be noted that the shape, size, and number of baffles 50 can be specifically designed according to the needs of the specific cleaning equipment. The shape of the baffles 50 can be regular or irregular. There can be one baffle or multiple baffles 50. When there are multiple baffles 50, they can be arranged sequentially along the height direction, or sequentially along the circumference of the exhaust duct 40, and they can be set at the same height.

[0098] In the above embodiment, based on the arrangement of the liquid collection channel 30 along the height direction, the external liquid is transported upward along the height direction. After flowing out of the liquid outlet 302, the liquid direction changes by about 1° and then falls downward along the height direction. The sharp turn of the liquid makes it easier for the liquid to fall from the liquid outlet 302 and enter the liquid collection chamber 105, increasing the inertia of the liquid entering the liquid collection chamber 105 and reducing the probability of the liquid being carried away by the suction air.

[0099] Based on the design of the first partition 2012e or the second partition 2012a, the path of liquid falling from the outlet 302 into the collection chamber 105 and the exhaust path of the suction air are isolated. Furthermore, by making the collection channel 30 in close contact with the first partition 2012e or the second partition 2012a, the path of liquid falling from the outlet 302 into the collection chamber 105 is located on the side of the collection channel 30 that is not in contact with the first partition 2012e or the second partition 2012a. By increasing the horizontal spacing, the path of liquid falling from the outlet 302 into the collection chamber 105 and the exhaust path of the suction air are further isolated.

[0100] Based on the design of the liquid collection channel 30 and the first partition 2012e, combined with the design of the first air inlet 4011, the air passage 80, and the second air inlet 4012, after the suction air is separated from the liquid, it enters the first air inlet 4011, then changes angles and enters the air passage 80, running in the first direction toward the second air inlet 4012, and then changes angles again before entering the exhaust channel 40. These two right-angle changes further filter out some of the liquid in the gas. Alternatively, based on the design of the liquid collection channel 30 and the second partition 2012a, the air inlet 401 is designed below the second partition 2012a. After the suction air is separated from the liquid, it changes angles and enters the air inlet 401, running in the first direction toward the air inlet 401, and then changes angles again before entering the exhaust channel 40. These two right-angle changes further filter out some of the liquid in the gas.

[0101] Based on the design of the liquid collection channel 30, the first baffle 2012e / the second baffle 2012a and the air inlet 401, multiple baffles 50 are further designed to filter out the liquid in the gas through friction and obstruction between the gas and the multiple baffles 50, thereby further improving the efficiency and effect of gas-liquid separation.

[0102] Through this multi-layered design, the suction air not only provides partial drive when the liquid falls into the collection chamber 105, but also facilitates the separation of the suction air from the liquid after the drive is completed, and further separation by changing the angle of the suction air. Then, multiple baffles 50 are used to further filter the liquid. Through this multi-layered system design, the collection of liquid and gas-liquid separation are completed, reducing or eliminating the probability of liquid damage to the motor.

[0103] The air outlet 402 can be installed on the air outlet structure 403, which can be configured at the air outlet end of the exhaust duct 40, for example, at a local position of the top seal 2011 facing the exhaust duct 40.

[0104] In one embodiment where the first partition 2012e is provided, the bottom side of the first partition 2012e can be disposed in the configuration groove 209 of the water filter element 202 and sealed by a sealing element.

[0105] Based on the above multiple designs, the specific structure for implementing the above multiple designs is described in detail below.

[0106] In some embodiments, the tank structure includes a tank body 10 and a support structure 20. The tank body 10 has a bottom wall 101 and an opening 102 disposed opposite each other along the height direction. The support structure 20 is disposed in the tank body 10, with its top end 201a sealed to the opening 102 and its bottom end 201b spaced from the bottom wall 101 to form a liquid collection chamber 105. A partition cavity 106 is formed on the portion of the support structure 20 between the top end and the bottom end, or the portion of the support structure 20 between the top end 201a and the bottom end 201b cooperates with the side wall of the tank body 10 to form a partition cavity 106. The liquid outlet 302 and the exhaust channel 40 are both located in the partition cavity 106, and the partition cavity 106 and the liquid collection chamber 105 are connected at the bottom end 201b.

[0107] The support structure 20 can be a one-piece molded structure or a structure assembled from several parts. The support structure 20 and the box body 10 are sealed together, so that the inside of the box body 10 has a closed space that can contain liquid, and the liquid collection chamber 105 is part of this space.

[0108] In some embodiments, the support structure 20 can be an integrally formed structure. The support structure 20 itself forms a partition cavity 106. The support structure 20 is fitted in the box body 10. Its top end 201a along the height direction closes the opening 102, that is, closes the interior of the box body. The part between the top end 201a and the bottom end 201b can be spaced apart from or fitted to the side wall of the box body 10.

[0109] In some embodiments, the support structure 20 can be a structure assembled from several components. The support structure 20 itself forms a partition cavity 106 through assembly. The support structure 20 is fitted in the box body 10. Its top end 201a along the height direction closes the opening 102, that is, closes the interior of the box body. The part located between the top end 201a and the bottom end 201b can be spaced apart from or fitted to the side wall of the box body 10.

[0110] In some embodiments, the support structure 20 may be an integrally formed structure, with the top end 201a of the support structure 20 closing the opening 102 along the height direction, and the portion of the support structure 20 located between the top end 201a and the bottom end 201b cooperating with the side wall of the box body 10 to form a partition cavity 106.

[0111] In some embodiments, the support structure 20 may be a structure assembled from several components. The top end 201a of the support structure 20 along the height direction closes the opening 102. The portion of the support structure 20 located between the top end 201a and the bottom end 201b cooperates with the side wall of the box body 10 to form a partition cavity 106.

[0112] In some embodiments, the support structure 20 includes a support body 201 and a filter element 202 arranged and connected sequentially along the height direction. The support body 201 includes a top sealing portion 2011 and a cavity portion 2012. The filter element 202 and the top sealing portion 2011 are disposed at both ends of the cavity portion 2012 along the height direction. The top sealing portion 2011 is sealed in the opening 102. The filter element 202 is spaced from the bottom wall 101 to form a liquid collection cavity 105. The cavity portion 2012 has a partition plate 2012c. The partition plate 2012c, the filter element 202, and the side wall of the tank body 10 contact and cooperate to form a partition cavity 106.

[0113] The support body 201 can be a one-piece molded structure, and the filter element 202 can be a one-piece molded structure. The support body 201 and the filter element 202 are assembled to form the support structure 20. The filter element 202 is spaced from the bottom wall 101 to form a liquid collection chamber 105. The liquid collection chamber 105 can at least contain liquid when the cleaning equipment is in an upright state, such as wastewater generated from cleaning the floor.

[0114] The air outlet 402 can be set on the top seal 2011. On the side of the top seal 2011 away from the cavity 2012, a HEPA assembly 70 can be set. The HEPA assembly 70 includes a mounting shell 701, a filter element 702, and a release element 703. The mounting shell 701 is installed on the side of the top seal 2011 away from the cavity 2012. The filter element 702 and the release element 703 are set on the mounting shell 701. The filter element 702 and the air outlet 402 can be connected to each other to allow the suction air to be drawn out of the ventilation channel.

[0115] In other embodiments, the filter element 202 can block the liquid in the liquid collection chamber 105 and the expansion chamber 107 described below when the liquid tank structure is in an inclined / flat state, preventing the liquid from generating excessive turbulence and entering the motor with the gas.

[0116] In some embodiments, the cavity portion 2012 has a first partition 2012e extending along the height direction and isolating the liquid collection channel 30 and the exhaust channel 40 on both sides along a first direction, wherein the first direction is perpendicular to the height direction. The air inlet 401 includes a first air inlet 4011 and a second air inlet 4012. The first air inlet 4011 is located on the side where the liquid collection channel 30 is located, and the second air inlet 4012 is located on the side where the exhaust channel 40 is located. The first air inlet 4011 and the second air inlet 4012 are respectively connected to the liquid collection chamber 105. The liquid collection chamber 105 has a ventilation channel 80 located between the first air inlet 4011, the second air inlet 4012, and the highest liquid level line. The suction air flows sequentially through the liquid outlet 302, the first air inlet 4011, the ventilation channel 80, the second air inlet 4012, and the exhaust channel 40. Furthermore, the top side of the first partition 2012e is integrally connected to the top seal 2011, and the two sides of the first partition 2012e along the second direction are integrally connected to the cavity plate 2012c and sealed to the side wall of the box body 10, respectively. The bottom side of the first partition 2012e is sealed to the water filter 202, wherein the first direction, the second direction and the height direction are perpendicular to each other.

[0117] In some embodiments, the cavity portion 2012 has a second partition 2012a, which extends along the height direction. The second partition 2012a and the liquid collection chamber 105 are spaced apart along the height direction to form an air inlet 401. Partial liquid collection channels 30 and exhaust channels 40 are respectively disposed on both sides of the second partition 2012a and the air inlet 401 along a first direction, which is perpendicular to the height direction. Furthermore, the top side of the second partition 2012a is integrally connected to the top sealing portion 2011, and the two sides of the second partition 2012a along the second direction are respectively integrally connected to the cavity plate 2012c and sealed to the side wall of the box body 10, wherein the first direction, the second direction, and the height direction are perpendicular to each other. The liquid collection channels 30 and the exhaust channels 40 are respectively disposed on both sides of the second partition 2012a, and at least a portion of the bottom side of the second partition 2012a is spaced apart from the water filter 202 to form the air inlet 401.

[0118] In some embodiments, the sidewalls of the tank body 10 include a first sidewall 103 and a second sidewall 104 arranged opposite each other in the horizontal direction. The portion of the support structure 20 located between the top end 201a and the bottom end 201b contacts and engages with the first sidewall 103 of the tank body 10 to form a partition cavity 106. The portion of the support structure 20 located between the top end 201a and the bottom end 201b engages with the second sidewall 104 of the tank body 10 at intervals to form an expansion cavity 107. A portion of the liquid collection cavity 105 extends toward and communicates with the expansion cavity 107 in the height direction, allowing liquid to flow from the liquid collection cavity 105 to the expansion cavity 107 when the tank structure is tilted.

[0119] The liquid collecting chamber 105 can be located at the bottom of the liquid tank structure. A portion of the liquid collecting chamber 105 extends along the height direction of the liquid tank structure to form an expansion chamber 107. This expansion chamber 107 is used to accommodate liquid when the liquid tank structure is tilted. When the liquid tank structure is tilted, the liquid in the liquid collecting chamber 105 will flow or agitate towards the expansion chamber 107. When the liquid reaches the expansion chamber 107, the force generated by the agitation is relieved by the pressure relief chamber 108, thereby weakening or eliminating the agitation phenomenon. The liquid will not enter the motor with the gas flow due to agitation, reducing the probability of damage to the motor and other components.

[0120] Furthermore, in some embodiments, the cavity portion 2012 of the support structure 20 has a partition plate 2012c, which contacts and engages with the first sidewall 103 to form a partition cavity 106, and the partition plate 2012c engages and engages with the second sidewall 104 at intervals to form an expansion cavity 107. Based on this, the distance between the partition plate 2012c and the second sidewall 104 gradually decreases in the direction from the expansion cavity 107 toward the liquid collection cavity 105.

[0121] In some embodiments, the portion of the partition plate 2012c near the filter element 202 is provided with a second liquid hole 2012f, which allows liquid to enter the collection chamber 105 and / or the expansion chamber 107 from the partition chamber 106. The design of the partition plate 2012c facilitates the formation of the expansion chamber 107. The partition plate 2012c is inclined, and the second liquid hole 2012f is provided on the lower side, which facilitates the flow of liquid from the outlet 302 through the inclined partition plate 2012c to the second liquid hole 2012f, and from the second liquid hole 2012f into the collection chamber 105 and / or the expansion chamber 107.

[0122] In the above embodiments, at least one of the partition plate 2012c and the filter element 202 is provided with a liquid hole, which allows liquid to enter the collection chamber 105 and / or the expansion chamber 107 from the partition chamber. For ease of description, the liquid hole formed on the filter element 202 is the first liquid hole, and the liquid hole formed on the partition plate 2012c is the second liquid hole 2012f.

[0123] For example, the filter element 202 is provided with one or more first liquid holes penetrating its thickness. The first liquid holes can be notches located at the edges of the filter element 202. The first liquid holes and the through holes 2023 described below can be respectively provided on both sides of the filter element 202 along the second direction. Multiple first liquid holes can be arranged sequentially along the first direction, and multiple through holes 2023 can be arranged sequentially along the first direction.

[0124] Alternatively, the partition plate 2012c may be provided with one or more second liquid holes 2012f that penetrate its thickness. The second liquid holes 2012f may be a notch structure provided on the bottom side of the partition plate 2012c, and the multiple second liquid holes 2012f may be arranged sequentially along the first direction.

[0125] In the above embodiments, the preferred cavity plate 2012c is provided with a plurality of second liquid holes 2012f that penetrate its thickness, and the filter element 202 is provided with a plurality of through holes 2023. The second liquid holes 2012f and the through holes 2023 are respectively located on both sides of the filter element 202 along the second direction.

[0126] In some embodiments, a pressure relief chamber 108 is provided at the end of the liquid tank structure away from the liquid collection chamber 105. The pressure relief chamber 108 is formed by extending the side wall of the expansion chamber 107 in a direction away from the liquid collection chamber 105. For example, the pressure relief chamber 108 can be formed by directly extending the side wall of the expansion chamber 107, or the top seal can be formed as an extension of the expansion chamber. When the liquid tank structure is tilted, the liquid in the liquid collection chamber 105 will flow or agitate towards the expansion chamber 107. When the liquid reaches the pressure relief chamber 108, the force generated by the agitation is unloaded by the pressure relief chamber 108, thereby weakening or eliminating the agitation phenomenon. The liquid will not enter the motor with the gas flow due to agitation, reducing the probability of damaging the motor and other components.

[0127] In some embodiments, the liquid tank structure further includes a liquid level detection element 60. The cavity portion 2012 has a detection cavity 2012d on at least one side along the horizontal direction. The liquid level detection element 60 is disposed in the detection cavity 2012d. The detection end 604 of the liquid level detection element 60 is located on the highest liquid level line. By setting the liquid level detection element 60, liquid level detection can be realized when the liquid tank structure is in a vertical or tilted / flat state.

[0128] In some embodiments, the liquid tank structure includes two liquid level detection elements 60. The cavity portion 2012 has detection chambers 2012d on both sides along the horizontal direction. The two liquid level detection elements 60 are respectively disposed in the two detection chambers 2012d. The liquid is detected by the two liquid level detection elements 60, increasing the number of liquid detection points and improving the accuracy of liquid level detection.

[0129] In some embodiments, the detection cavity 2012d extends along the height direction of the liquid tank structure, and the liquid level detection element 60 extends along the height direction. This length extends from the top seal 2011 to the water filter element 202. The upper end of the liquid level detection element 60 can be sealed and installed in conjunction with the top seal 2011, and the lower end of the liquid level detection element 60 can be flush with the lower edge of the water filter element 202. The lower end is provided with a detection end 604.

[0130] This application also provides a cleaning device including the above-described liquid tank structure. The beneficial effects of the cleaning device provided in this application compared to the prior art are the same as the beneficial effects of the liquid tank structure provided in this application compared to the prior art, and will not be repeated here.

[0131] Please refer to Figures 7 to 10 ,as well as Figures 15 to 17Another embodiment of this application provides a different liquid tank structure, which has a liquid collection chamber 105 and an expansion chamber 107. The liquid collection chamber 105 is located at the bottom of the liquid tank structure, and a portion of the liquid collection chamber 105 extends along the height direction of the liquid tank structure to form the expansion chamber 107. The expansion chamber 107 is used to contain liquid in an inclined state. A pressure relief chamber 108 is provided at the end of the liquid tank structure away from the liquid collection chamber 105. The pressure relief chamber 108 is formed by extending from the side wall of the expansion chamber 107 in a direction away from the liquid collection chamber 105.

[0132] A pressure relief chamber 108 is provided at the end of the liquid tank structure away from the liquid collection chamber 105. The pressure relief chamber 108 is formed by extending from the side wall of the expansion chamber 107 in a direction away from the liquid collection chamber 105. When the liquid tank structure is tilted, the liquid in the liquid collection chamber 105 will flow or agitate towards the expansion chamber 107. When the liquid reaches the pressure relief chamber 108, the force generated by the agitation is relieved by the pressure relief chamber 108, thereby weakening or eliminating the agitation phenomenon. The liquid will not enter the motor with the gas flow due to agitation, reducing the probability of damaging the motor and other components.

[0133] In some embodiments, the pressure relief cavity 108 and the expansion cavity 107 are arranged sequentially along the height direction.

[0134] When the liquid tank structure is tilted, the liquid in the liquid collection chamber 105 flows or turbulent towards the expansion chamber 107 along the height direction. When the liquid reaches the pressure relief chamber 108 along the height direction, it continues to flow along the height direction and is then unloaded by the pressure relief chamber 108 to remove the force generated by the turbulence. As a result, the turbulence phenomenon is weakened or eliminated, and the liquid will not enter the motor with the gas flow due to the turbulence, reducing the probability of damaging the motor and other components.

[0135] In some embodiments, the pressure relief cavity 108 is located on the side of the expansion cavity 107 in the horizontal direction.

[0136] When the liquid tank structure is tilted, the liquid in the liquid collection chamber 105 flows or turbulent along the height direction toward the expansion chamber 107. When the liquid reaches the pressure relief chamber 108 along the height direction, it changes direction and flows horizontally. The pressure relief chamber 108 then dissipates the force generated by the turbulence, thereby weakening or eliminating the turbulence phenomenon. The liquid will not enter the motor with the gas flow due to the turbulence, reducing the probability of damaging the motor and other components.

[0137] In some embodiments, the sidewall of the expansion cavity 107 includes a buffer zone 109, the surface of which is arc-shaped. The buffer zone 109 is adjacent to the pressure relief cavity 108, and one end of the buffer zone 109 connected to the pressure relief cavity 108 is lower than or flush with the bottom surface of the pressure relief cavity 108. The sidewall of the buffer zone 109 may be the first sidewall 103 described above.

[0138] By designing an arc-shaped buffer zone 109, the liquid can be buffered or depressurized before reaching the pressure relief chamber 108, and then further depressurized through the pressure relief chamber 108, so as to maximize the removal of the force generated by the turbulence, thereby weakening or eliminating the turbulence phenomenon, and preventing the liquid from entering the motor with the gas flow due to the turbulence.

[0139] In some embodiments, the sidewall of the expansion cavity 107 includes a buffer zone 109, the surface of which is inclined; the buffer zone 109 is adjacent to the pressure relief cavity 108, one end of the buffer zone 109 connected to the pressure relief cavity 108 is lower than or flush with the bottom surface of the pressure relief cavity 108, and the other end of the buffer zone 109 away from the pressure relief cavity 108 is lower than one end.

[0140] By designing an inclined buffer zone 109, the liquid can be buffered or depressurized before reaching the pressure relief chamber 108, and then further depressurized through the pressure relief chamber 108, so as to maximize the removal of the force generated by the turbulence, thereby weakening or eliminating the turbulence phenomenon, and preventing the liquid from entering the motor with the gas flow due to the turbulence.

[0141] In some embodiments, the tank structure includes a tank body 10 and a support structure 20; the tank body 10 has a bottom wall 101 and an opening 102 disposed opposite each other along the height direction. The support structure 20 is disposed in the tank body 10, with its top end sealed in the opening 102 along the height direction, and its bottom end spaced from the bottom wall 101 to form a liquid collection cavity 105. A pressure relief cavity 108 is provided on the end of the support structure 20 away from the liquid collection cavity 105.

[0142] By setting the top of the support structure 20 along the height direction and the part used to close the opening 102 as the pressure relief chamber 108, the pressure relief chamber 108 can be located at the position furthest from the liquid collection chamber 105. This not only maximizes the cavity volume of the expansion chamber 107, but also optimizes the pressure relief effect of the pressure relief chamber 108. The liquid enters the expansion chamber 107 from the liquid collection chamber 105 and then enters the pressure relief chamber 108. The liquid path is lengthened, and the pressure relief is achieved by the lengthened path sequence of the turbulence generated by the liquid.

[0143] In some embodiments, the support structure 20 includes a support body 201 and a filter element 202 arranged and connected sequentially along the height direction. The support body 201 includes a top sealing portion 2011 and a cavity portion 2012, with the filter element 202 and the top sealing portion 2011 arranged at both ends of the cavity portion 2012 along the height direction. The top sealing portion 2011 closes the opening 102, and the filter element 202 is spaced from the bottom wall 101 to form a liquid collection cavity 105. The cavity portion 2012 has a partition plate 2012c, and the partition plate 2012c and the filter element 202 are spaced together with the side wall of the tank body 10 to form an expansion cavity 107. The top sealing portion 2011 is provided with a pressure relief cavity 10.

[0144] The pressure relief cavity 108 can be formed on the inner edge of the top seal 2011, or it can be provided at the sealing fit between the top seal 2011 and the opening 102. In some embodiments, the pressure relief cavity 108 can be formed on the inner edge of the top seal 2011, and the outer edge of the pressure relief cavity 108 can be sealed with the opening 102.

[0145] In some embodiments, the top seal 2011 and the cavity 2012 are integrally connected, and the pressure relief cavity 108 is disposed on the top seal 2011 in a region adjacent to the cavity 2012. In some embodiments, the pressure relief cavity 108 extends by a certain dimension along the horizontal extension direction of the sidewall of the cavity 2012. Thus, the pressure relief cavity 108 can be configured to follow the structure of the cavity 2012, maximizing its volume, and can extend along the extension direction of the sidewall of the cavity 2012, further increasing its volume and improving its pressure relief effect on the liquid.

[0146] This application embodiment also provides another cleaning device including another liquid tank structure provided in another embodiment above. The beneficial effects of the other cleaning device provided in this application embodiment compared with the prior art are the same as the beneficial effects of the other liquid tank structure provided in this application embodiment compared with the prior art, and will not be repeated here.

[0147] Please refer to Figures 18 to 20 ,as well as Figures 32 to 34 As shown, the liquid level detection device 60 provided in this embodiment has a detection end 604, which is provided with a first detection position 6071 and a second detection position 6072. The first detection position 6071 is located at the end of the detection end 604 and is provided with a first liquid level sensing element 605, which is used to detect the liquid level when the tank structure is in a first use state. The second detection position 6072 is located on the side of the detection end 604 and is provided with a second liquid level sensing element 606, which is used to detect the liquid level when the tank structure is in a second use state.

[0148] This design allows for the installation of two detection positions at different locations on the same liquid level detection component 60, with two liquid level sensing elements installed at the end and side respectively. This enables liquid level detection in the first usage state and liquid level detection in the first usage state, such as liquid level detection in the upright state and the lying / tilted state. This design does not occupy internal space of the equipment and also reduces material and installation costs.

[0149] The term "end" refers to the area on the detection end 604 that is infinitely close to its end face. It can be the end face itself or the area infinitely close to the end face. The term "side" refers to the area on the detection end that is far from the end face of the detection end. It has a certain size or distance from the end face.

[0150] In some embodiments, the axis of the first detection position 6071 and the axis of the second detection position 6072 are arranged perpendicularly, and the first liquid level sensing element 605 and the second liquid level sensing element 606 are installed along the axis of the first detection position 6071 and the axis of the second detection position 6072. That is, the orientation of the first liquid level sensing element 605 and the second liquid level sensing element 606 are perpendicular to each other, so that they can face the liquid collection cavity 105 and the expansion cavity 107 respectively.

[0151] In some embodiments, the liquid level detection element 60 includes a control connection portion 601 and a conductive portion 602. The conductive portion 602 extends to a certain length, one end of the conductive portion 602 in the length direction is electrically connected to the control connection portion 601, and the other end of the conductive portion 602 in the length direction is electrically connected to the first liquid level sensing element 605 and the second liquid level sensing element 606.

[0152] The control connection part 601 is used for communication connection with the control center of the cleaning equipment. After the liquid level detection element 60 is installed in the detection cavity 2012d, the control connection part 601 is generally matched with the section where the top seal part 2011 is located, the conductive part 602 is generally matched with the section where the cavity part 2012 is located, and the detection end 604 is generally matched with the section where the water filter part 202 is located.

[0153] Among them, after the liquid level detection element 60 is installed in the detection chamber 2012d, the detection end 604 of the liquid level detection element 60 can be set on the outside of the limiting baffle 2026 of the above-mentioned water filter element 202, and the two detection ends 604 of the two liquid level detection elements 60 are respectively set on the two outer sides of the two limiting baffles 2026 in the horizontal direction.

[0154] In some embodiments, the liquid level detection element 60 includes a housing 607, a control connection portion 601 and a conductive portion 602 are built into the housing 607, a first detection position 6071 and a second detection position 6072 are provided on the housing 607 and penetrate through the thickness of the housing wall of the housing 607, and the housing 607 forms a sealed protection for the control connection portion 601 and the conductive portion 602.

[0155] In some embodiments, a retaining portion 603 protrudes from the housing 607 and surrounds the peripheral wall of the housing 607. The retaining portion 603 is located near the other end, and the first detection position 6071 and the second detection position 6072 are located on the side of the retaining portion 603 opposite to one end. Thus, by sealing the retaining portion 603 with the detection cavity 2012d, the area of ​​the liquid detection element 60 located above the retaining portion 603 can be sealed in the detection cavity 2012d, while the detection end 604 is exposed outside the detection cavity 2012d.

[0156] In some embodiments, the first detection bit 6071 is one or more, and / or the second detection bit 6072 is one or more. The number of the first detection bit 6071 and the second detection bit 6072 can be adaptively set according to the specific detection requirements.

[0157] It should be noted that, apart from the difference in the side where the first detection position 6071 and the second detection position 6072 are located, their quantity, type, and arrangement can be the same or different. Similarly, the quantity, type, and arrangement of the first liquid level sensing element 605 and the second liquid level sensing element 606 can be the same or different.

[0158] In the liquid tank structure described above, which is equipped with the first partition 2012e, the following are applicable: Figures 32 to 34 The liquid level detection element shown has a short distance between the first and second detection positions along the height direction. In the liquid tank structure described above, which includes the second partition 2012a, it is suitable for applications such as... Figures 18 to 20 The liquid level detection device shown has a relatively long distance between the first detection position and the second detection position along the height direction.

[0159] This application embodiment also provides a liquid tank structure including the above-described liquid level detection element 60.

[0160] The liquid tank structure has a liquid collection chamber 105 and an expansion chamber 107. The liquid collection chamber 105 is located at the bottom of the liquid tank structure, and a portion of the liquid collection chamber 105 extends along the height direction of the liquid tank structure to form the expansion chamber 107. The expansion chamber 107 is used to accommodate liquid in the liquid tank structure when it is tilted. The liquid tank structure includes the liquid level detection element 60 as described above. The detection end 604 of the liquid level detection element 60 is located at the connection between the liquid collection chamber 105 and the expansion chamber 107. The first liquid level sensing element 605 and the second liquid level sensing element 606 are respectively positioned facing the expansion chamber 107 and the liquid collection chamber 105.

[0161] In some embodiments, the tank structure includes two liquid level detection elements 60. The expansion cavity 107 has detection chambers 2012d on both sides along the horizontal direction. The two liquid level detection elements 60 are respectively disposed in the two detection chambers 2012d, and the detection ends 604 are exposed. By using two liquid level detection elements 60 to detect the liquid, the number of detection points is increased, thereby improving the accuracy of liquid level detection.

[0162] In some embodiments, the liquid level detection element 60 includes a housing 607, on which a retaining portion 603 protrudes and surrounds the peripheral wall of the housing 607. A first detection position 6071 and a second detection position 6072 are provided on the housing 607. The detection cavity 2012d has a through-hole, in which the retaining portion 603 is sealed. A first liquid level sensing element 605 and a second liquid level sensing element 606 are provided on the outside of the retaining portion 603. The housing 607 provides a sealed protection for the control connection portion 601 and the conductive portion 602.

[0163] Please refer to the reference. Figures 10 to 14 As shown, this application embodiment also provides a cleaning device including the liquid tank structure with liquid level detection element 60 described above. The beneficial effects of the cleaning device provided in this application embodiment compared to the prior art are the same as the beneficial effects of the liquid tank structure with liquid level detection element 60 provided in this application compared to the prior art, and will not be repeated here.

[0164] The water filter 202 provided in this embodiment includes a main baffle 2021 and an auxiliary baffle 2022. The main baffle 2021 has a first side 2021a and a second side 2021b disposed opposite to each other. The auxiliary baffle 2022 protrudes from the second side 2021b and divides the second side 2021b into a first region 2021d and a second region 2021c. The main baffle 2021 is configured to allow liquid to pass from the side containing the first side 2021a through the second region 2021c to the side containing the second side 2021b; and when the main baffle 2021 forms an angle with the horizontal plane and the liquid level is in the second region 2021c, the auxiliary baffle 2022 is used to prevent liquid from reaching the first region 2021d from the second region 2021c.

[0165] The filter element 202 is applied to the liquid tank structure, allowing liquid to travel from the side containing the first side 2021a through the second region 2021c to the side containing the second side 2021b. When the liquid tank structure is tilted, i.e., when the main baffle 2021 forms an angle with the horizontal plane and the liquid level is in the second region 2021c, the auxiliary baffle 2022 prevents liquid from flowing from the second region 2021c to the first region 2021d. For example, if the liquid tank structure collects sewage and significant water agitation occurs within it, the agitated sewage is less likely to be agitated to the first side 2021a, i.e., the side containing the exhaust channel 40. This prevents the liquid from entering the motor with the gas flow, reducing the probability of damage to the motor and other components.

[0166] In some embodiments, the first region 2021d is provided with a plurality of through holes 2023 penetrating the thickness of the main baffle 2021. The plurality of through holes 2023 are arranged sequentially at intervals along the extension direction of the auxiliary baffle 2022, and the plurality of through holes 2023 are spaced apart from the auxiliary baffle 2022.

[0167] By setting multiple through holes 2023, when the liquid tank is tilted, the suction air can form a suction path from the partition chamber 106, the second liquid hole 2012f, the liquid collection chamber 105, and the through holes 2023. This can increase the driving force of the suction air on the liquid entering the liquid collection chamber 105, and the through holes 2023 can filter the liquid contained in the suction air.

[0168] In some embodiments, an annular baffle 2024 protrudes from the first region 2021d, and a through hole 2023 is located inside the annular baffle 2024. The annular baffle 2024 and the auxiliary baffle 2022 are spaced apart.

[0169] When the liquid tank structure is in an inclined / flat state, the liquid splashes onto the auxiliary baffle 2022 of the filter element 202, and the resulting water splashes are blocked by the auxiliary baffle 2022, thus falling back into the water collection chamber. Through the arrangement of the annular baffle 2024, which is spaced apart from the auxiliary baffle 2022, another water-blocking zone is formed. When water splashes onto this water-blocking zone, it is still blocked by the annular baffle 2024 and flows back into the liquid collection chamber 105.

[0170] In some embodiments, two connecting walls 2025 are provided on the first region 2021d, and the two ends of the extension of the auxiliary baffle 2022 are respectively connected to the annular baffle 2024 through the two connecting walls 2025.

[0171] By connecting the two auxiliary baffles 2022 and the annular baffles 2024 with two connecting walls 2025, another water-blocking area can be circumferentially enclosed, further improving the blocking effect on liquid.

[0172] In some embodiments, there are multiple annular baffles 2024, which are sequentially connected along the extension direction of the auxiliary baffle 2022, and each annular baffle 2024 has at least one through hole 2023 on its inner side.

[0173] By combining the annular baffle 2024 and the through hole 2023, the liquid can be blocked by the annular baffle 2024. Even if the liquid passes through the annular baffle 2024, it can be filtered by the through hole 2023, further preventing the liquid from entering the first side 2021a from the side where the second side 2021b is located.

[0174] In some embodiments, a secondary baffle is provided on the first region 2021d, the secondary baffle and the auxiliary baffle 2022 are spaced apart, and a plurality of through holes 2023 are provided on the side of the secondary baffle away from the auxiliary baffle 2022.

[0175] When the liquid tank structure is in an inclined / flat state, the liquid splashes onto the auxiliary baffle 2022 of the filter element 202, and the resulting water splashes are blocked by the auxiliary baffle 2022, thus falling back into the water collection chamber. Through the setting of secondary baffles, with the secondary baffle and auxiliary baffle 2022 spaced apart, another water-blocking zone is formed. When water splashes onto this water-blocking zone, it can still be blocked by the annular baffle 2024 and flow back into the interior of the liquid collection chamber 105.

[0176] By combining the secondary baffle and the through hole 2023, the liquid can be blocked by the secondary baffle, and even if the liquid passes through the secondary baffle, it can be filtered by the through hole 2023, further preventing the liquid from entering the first side 2021a from the side where the second side 2021b is located.

[0177] The secondary baffle can be a strip-shaped baffle parallel to the auxiliary baffle 2022, and the through hole 2023 is located on the side of the secondary baffle away from the auxiliary baffle 2022.

[0178] In some embodiments, two limiting walls 2026 are provided on the second region 2021c. The two limiting walls 2026 are connected at an angle to the auxiliary wall 2022. The two limiting walls 2026 and the auxiliary wall 2022 together define the second region 2021c.

[0179] The second region 2021c is defined by two limiting walls 2026 and an auxiliary wall 2022, making the second region 2021c a U-shaped structure that opens toward the expansion cavity 107, which is more conducive to blocking the liquid in three directions and improving the blocking effect.

[0180] In some embodiments, a fitting hole 2027 is provided at the center of the second region 2021c. The fitting hole 2027 is used to seal the fitting liquid collection channel 30, which is used to transport external liquid to the side where the first side 2021a is located.

[0181] By fitting the liquid collection channel 30 through the fitting hole 2027 on the water filter 202, the integration of the water filter 202 and the liquid collection channel 30 can be improved, which is to say, the integration of the internal structure of the tank body 10 can be improved. At the same time, it is beneficial for external liquid to enter along the height direction, and for the liquid to enter the liquid collection chamber 105 by inertia after turning, which is more conducive to separation from gas.

[0182] Among them, in such Figures 21 to 31 In the provided embodiment, in the liquid tank structure provided with the first partition 2012e, among the plurality of through holes 2023, a plurality of through holes 2023 are provided on the side where the liquid collection channel 30 is located, and these plurality of through holes 2023 can be used as the first air inlet 4011, and the other plurality of through holes 2023 are provided on the side where the exhaust channel 40 is located, and these other plurality of through holes 2023 can be used as the second air inlet 4012.

[0183] Among them, in such Figures 1 to 17 In the provided embodiments, in the liquid tank structure with the second partition 2012a, the design of multiple through holes 2023 can be omitted or retained. When the design of multiple through holes 2023 is retained, the multiple through holes 2023 are used as filter holes for filtering liquid. Of course, in this embodiment, a small amount of airflow may pass through the multiple through holes 2023, but most of the suction air still exits through the air inlet 401 formed by the second partition 2012a and the water filter element 202.

[0184] This application embodiment also provides a liquid tank structure having the above-described water filter element 202. The liquid tank structure has a liquid collection chamber 105 and an expansion chamber 107 communicating with the liquid collection chamber 105. The liquid tank structure includes the water filter element 202 as described above. The side where the second side 2021b of the water filter element 202 is located is the liquid collection chamber 105. The expansion chamber 107 is located beside the water filter element 202 and extends from the second side 2021b in the direction pointing to the first side 2021a.

[0185] In some embodiments, the liquid tank structure further includes a liquid collection channel 30, and a fitting hole 2027 is provided in the second region 2021c, in which the liquid collection channel 30 is fitted. Part of the liquid collection channel 30 is located on the side where the first side 2021a is located and has a liquid outlet 302. Liquid from the liquid outlet 302 enters the side where the second side 2021b is located from the side where the first side 2021a is located and reaches the liquid collection chamber 105; another part of the liquid collection channel 30 is located on the side where the second side 2021b is located and has a liquid inlet 301.

[0186] The liquid collection channel 30 is set along the height direction. External liquid is transported upward along the height direction. After flowing out of the liquid outlet 302, the liquid direction changes by about 1° and then falls downward along the height direction. The sharp turn of the liquid makes it easier for the liquid to fall from the liquid outlet 302 and enter the liquid collection chamber 105. This increases the inertia of the liquid entering the liquid collection chamber 105, reduces the probability of the liquid being carried away by the suction air, further reduces the liquid content in the suction air, and reduces the probability of the motor being damaged.

[0187] In some embodiments, the liquid tank structure further includes a ventilation channel 40 having an interconnected air inlet 401 and an air outlet 402. The air inlet 401 is disposed along the height direction between the liquid outlet 302 and the liquid collection chamber 105. The ventilation channel 40 provides suction air from the air inlet 401 to the air outlet 402. The suction air is used to draw liquid from the liquid inlet 301 to the liquid outlet 302, and separates from the liquid as the liquid falls from the liquid outlet 302 into the liquid collection chamber 105, entering the air inlet 401.

[0188] The height of the outlet 302 of the liquid collection channel 30 is higher than the height of the inlet 301. External liquid can enter the liquid collection channel 30 from the inlet 301 using the force of the suction fan, and is transported upwards to the outlet 302. Due to the force of the suction fan and / or the weight of the liquid, the liquid flows downwards from the outlet 302 into the liquid collection chamber 105. Since the inlet 401 of the suction channel 40 is located between the outlet 302 and the highest liquid level line, when the liquid falls from the outlet 302 into the liquid collection chamber 105, the suction fan separates from the liquid and enters the inlet 401. During this process, the suction direction of the suction fan changes relative to the direction in which the liquid enters the liquid collection chamber 105. Due to its own inertial force, the liquid falls into the liquid collection chamber 105 and is less likely to be carried into the suction channel 40 by the suction fan, thus preventing liquid from entering the motor and damaging the electrodes.

[0189] In some embodiments, the first region 2021d is provided with a plurality of through holes 2023 penetrating the thickness of the main baffle 2021. The plurality of through holes 2023 are arranged sequentially at intervals along the extension direction of the auxiliary baffle 2022, and the plurality of through holes 2023 are spaced apart from the auxiliary baffle 2022. The expansion cavity 107 is located on the side of the water filter element 202 away from the plurality of through holes 2023.

[0190] When the liquid tank structure is in an inclined / flat state, the expansion cavity 107 is located below the auxiliary baffle 2022, which prevents liquid from flowing from the second region 2021c to the first region 2021d. For example, if the expansion cavity 107 and the collection cavity 105 collect sewage, and the liquid generates significant water agitation within them, the agitated sewage is less likely to be agitated to the first side 2021a, which is the side where the exhaust channel 40 is located. The liquid will not flow with the gas flow into the motor, reducing the probability of damage to the motor and other components. Even if the liquid crosses the auxiliary baffle 2022, it can be filtered through the through-hole 2023, further preventing the liquid from flowing back from the second side 2021b to the first side 2021a.

[0191] The beneficial effects of the liquid tank structure with water filter element 202 provided in this application embodiment compared to the prior art are the same as the beneficial effects of the water filter element 202 provided in this application embodiment compared to the prior art, and will not be repeated here.

[0192] This application also provides a cleaning device, which includes the liquid tank structure with a water filter element 202 as described above. The beneficial effects of the cleaning device provided in this application compared to the prior art are the same as the beneficial effects of the water filter element 202 and the liquid tank structure with the water filter element 202 provided in this application compared to the prior art, and will not be repeated here.

[0193] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A water filter element, characterized in that: The water filter element includes a main baffle and an auxiliary baffle wall; The main baffle has a first side and a second side that are opposite to each other, and the auxiliary baffle protrudes from the second side, dividing the second side into a first region and a second region. The main baffle is configured to allow liquid to enter the second side from the side where the first side is located; and when the main baffle is at an angle to the horizontal plane and the liquid level is in the second region, the auxiliary baffle is used to prevent the liquid from reaching the first region from the second region.

2. The water filter element as described in claim 1, characterized in that: The first region is provided with a plurality of through holes that penetrate the thickness of the main baffle. The plurality of through holes are arranged sequentially at intervals along the extension direction of the auxiliary baffle and are spaced apart from the auxiliary baffle.

3. The water filter element as described in claim 2, characterized in that: The first region is provided with an annular baffle wall, the through hole is located inside the annular baffle wall, and the annular baffle wall and the auxiliary baffle wall are spaced apart.

4. The water filter element as described in claim 3, characterized in that: Two connecting walls protrude from the first region, and the two ends of the auxiliary baffle are respectively connected to the annular baffle through the two connecting walls.

5. The water filter element as described in claim 3, characterized in that: There are multiple annular baffles, which are connected sequentially along the extension direction of the auxiliary baffles, and each annular baffle has at least one through hole on its inner side.

6. The water filter element as described in claim 2, characterized in that: The first area is provided with a secondary baffle, which is spaced apart from the auxiliary baffle, and a plurality of the through holes are provided on the side of the secondary baffle away from the auxiliary baffle.

7. The water filter element as described in any one of claims 1-6, characterized in that: The second region is provided with two limiting walls, which are connected at an angle to the auxiliary wall. The two limiting walls and the auxiliary wall together define the second region.

8. The water filter element as described in claim 7, characterized in that: A fitting hole is provided in the center of the second region. The fitting hole is used to seal the fitting liquid collection channel, which is used to transport the external liquid to the side where the first side is located.

9. A liquid tank structure, characterized in that: The liquid tank structure has a liquid collection chamber and an expansion chamber communicating with the liquid collection chamber; The liquid tank structure includes a water filter element as described in any one of claims 1-8, wherein the second side of the water filter element is the liquid collection chamber, and the expansion chamber is located beside the water filter element and extends from the second side to the first side.

10. The liquid tank structure as described in claim 9, characterized in that: The liquid tank structure also includes a liquid collection channel; The second region has a fitting hole, and the liquid collection channel is fitted into the fitting hole; One portion of the liquid collection channel is located on the side where the first side is located and has a liquid outlet. Liquid from the liquid outlet enters the side where the second side is located from the side where the first side is located and reaches the liquid collection chamber. The other portion of the liquid collection channel is located on the side where the second side is located and has a liquid inlet.

11. The liquid tank structure as described in claim 10, characterized in that: The liquid tank structure also includes a ventilation channel; The exhaust channel has an interconnected air inlet and an air outlet, with the air inlet located between the liquid outlet and the liquid collection chamber along the height direction; The exhaust channel provides suction air from the air inlet to the air outlet. The suction air is used to draw liquid from the liquid inlet to the liquid outlet, and separates from the liquid as the liquid falls from the liquid outlet into the liquid collection chamber and enters the air inlet.

12. The liquid tank structure as described in claim 9, characterized in that: The first region is provided with a plurality of through holes penetrating the thickness of the main baffle, the plurality of through holes being arranged sequentially at intervals along the extension direction of the auxiliary baffle, and the plurality of through holes being spaced apart from the auxiliary baffle; the expansion cavity is located on the side of the water filter element opposite to the plurality of through holes.

13. A cleaning device, characterized in that: The cleaning equipment includes the tank structure as described in any one of claims 9-12.

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