Water tank assembly and cleaning device

Abstract

The application provides a water tank assembly and a cleaning device. The water tank assembly is applied to the cleaning device, and the water tank assembly comprises a tank body and a valve assembly. The tank body is provided with a first cavity and a second cavity. The first cavity is configured to be in communication with a suction passage and a liquid collecting container of the cleaning device. The first cavity is also in openable and closable communication with the second cavity. The valve assembly is configured to guide the communication between the first cavity and the second cavity to be open or closed. The water tank assembly provided by the application can enhance the reliability of the cleaning device in sucking sewage.

Description

Technical Field

[0001] This application relates to the field of cleaning technology, and in particular to a water tank assembly and cleaning equipment. Background Technology

[0002] Currently, cleaning equipment with running water cleaning function is becoming increasingly common. This means the equipment includes at least a clean water tank assembly, cleaning components (such as cloths and mops), a collection container, and a water tank assembly. The basic water path during operation is as follows: During cleaning, the clean water tank assembly sprays water onto the mop at regular intervals. The collection container scrapes off excess water from the mop and stores it temporarily. The cleaning equipment then pumps the wastewater from the collection container into the water tank assembly for temporary storage.

[0003] Air pumps are a crucial component of cleaning equipment for wastewater suction; however, existing air pumps suffer from a short lifespan. To extend the service life of air pumps, current cleaning equipment often controls their periodic operation. However, this method reduces the reliability of wastewater suction. Utility Model Content

[0004] This application provides a water tank assembly and a cleaning device to solve the technical problem of low reliability in wastewater discharge of existing cleaning devices.

[0005] To solve the above-mentioned technical problems, this application provides a water tank assembly, which is applied to cleaning equipment. The water tank assembly includes a tank body and a valve assembly. The tank body is provided with a first cavity and a second cavity. The first cavity is configured to communicate with the air extraction channel and liquid collection container of the cleaning equipment. The first cavity is also openably and closeably connected to the second cavity. The valve assembly is configured to open or close the communication between the first cavity and the second cavity.

[0006] In one embodiment, in the height direction of the cleaning device, the bottom wall of the first cavity is higher than the bottom wall of the second cavity, so that there is a height difference between the bottom walls of the first cavity and the bottom walls of the second cavity.

[0007] In one embodiment, a first sidewall is provided between the first cavity and the second cavity, the first sidewall is provided with a through hole, the valve assembly is disposed on the first sidewall, and the valve assembly is covered by the through hole.

[0008] In one embodiment, a valve assembly is disposed on the side wall of the second cavity communicating with the first cavity. The valve assembly includes a rotating shaft and a valve cover. The rotating shaft is rotatably connected to the side wall of the second cavity. The valve cover is rotatably connected to the rotating shaft and is configured to cover the through hole communicating with the first cavity.

[0009] In one embodiment, a protrusion is formed on the side of the valve cover facing the sidewall along the axial direction of the through hole, and the protrusion is used to block the through hole.

[0010] In one embodiment, the valve assembly further includes a first seal disposed around the periphery of the protrusion.

[0011] In one embodiment, the housing includes an upper cover and a lower housing, the lower housing forming a first cavity and a second cavity with openings, the upper cover covering the openings and being detachably connected to the lower housing; wherein, a portion of the bottom wall of the lower housing is recessed inward to create a height difference between the bottom wall of the first cavity and the bottom wall of the second cavity.

[0012] In one embodiment, the first cavity is provided with an airflow pipe communicating with the air extraction channel and the first cavity, and a liquid collection pipe communicating with the liquid collection container and the first cavity. The airflow pipe and the liquid collection pipe extend from the bottom wall of the first cavity toward the top cover, and the end of the airflow pipe is provided with an air extraction port, and the end of the liquid collection pipe is provided with a liquid collection inlet. The portion of the top cover in the first cavity is provided with a first annular groove and a second annular groove. The first annular groove is fitted around the outer periphery of the end of the airflow pipe, and the second annular groove is fitted around the outer periphery of the end of the liquid collection pipe.

[0013] In one embodiment, the water tank assembly further includes a detection element disposed in the second cavity, the detection element being used to detect the amount of sewage in the second cavity.

[0014] In one embodiment, the valve assembly is in a closed state when the air extraction channel is working, so as to close the connection between the first cavity and the second cavity, thereby generating negative pressure in the first cavity, and the sewage in the collection container enters the first cavity under the action of negative pressure; when the air extraction channel stops working, the valve assembly is in a open state, so as to open the connection between the first cavity and the second cavity, thereby allowing the sewage in the first cavity to enter the second cavity.

[0015] To solve the above-mentioned technical problems, this application provides a cleaning device, which includes a cleaning body and any of the above-mentioned water tank components. The cleaning body is configured to clean the surface to be cleaned. The water tank components are detachably connected to the cleaning body. The cleaning body is provided with an air extraction channel and a liquid collection container, and the first cavity is connected to the air extraction channel and the liquid collection container.

[0016] The beneficial effects of this application are as follows: The water tank assembly provided in this application is applied to cleaning equipment. The water tank assembly includes a tank body and a valve assembly. The tank body has a first cavity and a second cavity. The first cavity is configured to communicate with the air extraction channel and the liquid collection container of the cleaning equipment, and the first cavity is also connected to the second cavity. The valve assembly is configured to open or close the communication between the first cavity and the second cavity. By using the water tank assembly of this application, the communication state between the first cavity and the second cavity of the water tank assembly can be opened or closed by the valve assembly. When the cleaning equipment is pumping sewage, the communication state between the first cavity and the second cavity is closed. At this time, the air pump only needs to pump the gas in the first cavity, so that the first cavity can quickly form a negative pressure. The negative pressure in the first cavity will promptly draw the sewage in the liquid collection container into the first cavity, which can prevent the sewage in the liquid collection container from overflowing, thereby enhancing the reliability of sewage pumping of the cleaning equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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, wherein: Figure 1 This is a first structural schematic diagram of an embodiment of the water tank assembly provided in this application; Figure 2 yes Figure 1 A cross-sectional view of the water tank assembly in the embodiment; Figure 3 This is a second structural schematic diagram of an embodiment of the water tank assembly provided in this application; Figure 4 This is a schematic diagram of the structure of an embodiment of the valve assembly provided in this application; Figure 5 This is a first structural schematic diagram of an embodiment of the cleaning equipment provided in this application; Figure 6 This is a second structural schematic diagram of an embodiment of the cleaning equipment provided in this application; Figure 7 This is a schematic diagram of the structure of an embodiment of the air extraction channel provided in this application; Figure 8 This is a schematic diagram of an embodiment of the water outlet channel provided in this application.

[0018] Reference numerals: 10 Water tank assembly; 101 First cavity; 102 Second cavity; 103 Through hole; 110 Housing; 111 Lower housing; 112 Top cover; 113 Release button; 114 Fastening part; 115 Second seal; 116 Liquid collection pipe; 117 Airflow pipe; 118 First annular groove; 119 Second annular groove; 120 Valve assembly; 121 Rotating shaft; 122 Valve cover; 123 Protrusion; 124 First seal; 130 Detection element; 20 Cleaning equipment; 210 Cleaning body; 220 Water tank assembly; 231 Roller cloth; 232 Roller brush; 233 Side brush; 240 Radar; 250 Power button; 261 First pipe; 262 Air pump; 263 Adapter; 271 Sub-channel; 272 Spray cover; A Bottom; B Side; C Top. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0020] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0022] Currently, cleaning equipment with running water cleaning function is becoming increasingly common. This means the equipment includes at least a clean water tank assembly, cleaning components (such as cloths and mops), a collection container, and a water tank assembly. The basic water path during operation is as follows: During cleaning, the clean water tank assembly sprays water onto the mop at regular intervals. The collection container scrapes off excess water from the mop and stores it temporarily. The cleaning equipment then pumps the wastewater from the collection container into the water tank assembly for temporary storage.

[0023] Air pumps are a crucial component of cleaning equipment for wastewater suction; however, existing air pumps suffer from a short lifespan. To extend the service life of air pumps, current cleaning equipment often controls their periodic operation. However, this method reduces the reliability of wastewater suction.

[0024] To address the aforementioned technical problems, this application provides a water tank assembly for use in cleaning equipment, thereby enhancing the reliability of wastewater suction from the cleaning equipment. (See reference...) Figures 1 to 8 , Figure 1 This is a first structural schematic diagram of an embodiment of the water tank assembly provided in this application; Figure 2 yes Figure 1 A cross-sectional view of the water tank assembly in the embodiment; Figure 3 This is a second structural schematic diagram of an embodiment of the water tank assembly provided in this application; Figure 4 This is a schematic diagram of the structure of an embodiment of the valve assembly provided in this application; Figure 5 This is a first structural schematic diagram of an embodiment of the cleaning equipment provided in this application; Figure 6 This is a second structural schematic diagram of an embodiment of the cleaning equipment provided in this application; Figure 7 This is a schematic diagram of the structure of an embodiment of the air extraction channel provided in this application; Figure 8 This is a schematic diagram of an embodiment of the water outlet channel provided in this application. The water tank assembly 10 includes a tank body 110 and a valve assembly 120.

[0025] The housing 110 is provided with a first cavity 101 and a second cavity 102. The first cavity 101 is configured to communicate with the air extraction channel and liquid collection container of the cleaning equipment 20, and the first cavity 101 is also openably and closably connected to the second cavity 102. The volume of the first cavity 101 is less than or equal to the volume of the second cavity 102. Both the first cavity 101 and the second cavity 102 can serve as temporary storage spaces for wastewater during the operation of the cleaning equipment 20. In other words, this application changes the original single wastewater storage cavity into two wastewater storage cavities with almost equal combined wastewater storage capacity. The communication state between the first cavity 101 and the second cavity 102 is adjustable; the two cavities are connected at certain times and isolated at certain times.

[0026] Valve assembly 120 is configured to open or close the connection between the first cavity 101 and the second cavity 102. That is, the change in the connection state between the first cavity 101 and the second cavity 102 is achieved by opening or closing valve assembly 120. Valve assembly 120 can be electrically controlled, with the controller of cleaning equipment 20 controlling the opening or closing of valve assembly 120 to achieve the connection or closure between the first cavity 101 and the second cavity 102; or valve assembly 120 can be a purely mechanical structure, using negative pressure, gravity of water, etc., to force valve assembly 120 to open or close, thereby achieving the connection or closure between the first cavity 101 and the second cavity 102.

[0027] The connection between the first chamber 101 and the second chamber 102 of the water tank assembly 10 of this application can be opened or closed by the valve assembly 120. When the cleaning device 20 is pumping sewage, if the connection between the first chamber and the second chamber is closed, the air pump 262 only needs to pump the gas in the first chamber 101, so that the first chamber 101 can quickly form a negative pressure. The negative pressure in the first chamber 101 will timely pump the sewage in the collection container into the first chamber 101, which can prevent the sewage in the collection container from overflowing, thereby enhancing the reliability of sewage pumping of the cleaning device 20. Furthermore, when the air pump 262 stops pumping, the valve assembly 120 connects the first chamber 101 and the second chamber 102, so that the sewage in the first chamber 101 can enter the second chamber 102 for storage, so that the sewage storage capacity of the water tank assembly 10 remains unchanged.

[0028] In one embodiment, the valve assembly 120 is in a closed state when the air extraction channel is working, so as to close the connection between the first cavity 101 and the second cavity 102, thereby generating negative pressure in the first cavity 101, and the sewage in the collection container enters the first cavity 101 under the action of negative pressure; when the air extraction channel stops working, the valve assembly 120 is in a conductive state, so as to open the connection between the first cavity 101 and the second cavity 102, thereby allowing the sewage in the first cavity 101 to enter the second cavity 102.

[0029] The operation of the vacuum channel refers to the air pump 262 in the vacuum channel drawing a vacuum; the cessation of the vacuum channel operation refers to the air pump 262 in the vacuum channel stopping drawing a vacuum. Understandably, when the vacuum channel is operating (i.e., when the air pump 262 is drawing gas from the first chamber 101), the valve assembly 120 cuts off the connection between the first chamber 101 and the second chamber 102, making the first chamber 101 and the second chamber 102 two independent chambers; when the vacuum channel is ceasing operation (i.e., when the air pump 262 stops drawing gas from the first chamber 101), the valve assembly 120 restores the connection between the first chamber 101 and the second chamber 102, making the first chamber 101 and the second chamber 102 interconnected. Based on this, when the cleaning equipment 20 is pumping sewage, the air pump 262 only needs to pump the gas in the first chamber 101, so that the first chamber 101 can quickly form a negative pressure. The negative pressure in the first chamber 101 will promptly pump the sewage in the collection container into the first chamber 101, which can prevent the sewage in the collection container from overflowing, thereby enhancing the reliability of sewage pumping of the cleaning equipment 20. Furthermore, when the air pump 262 stops pumping, the valve assembly connects the first chamber 101 and the second chamber 102, so that the sewage in the first chamber 101 can enter the second chamber 102 for storage, so that the sewage storage capacity of the water tank assembly 10 remains unchanged.

[0030] In one embodiment, the volume of the first cavity 101 ranges from 30 ml to 60 ml. For example, the volume of the first cavity 101 is 30 ml, 35 ml, 41 ml, 48 ml, 50 ml, 55 ml, 58 ml, 60 ml, etc. The volume of the second cavity 102 ranges from 60 ml to 200 ml. For example, the volume of the second cavity 102 is 60 ml, 78 ml, 85 ml, 95 ml, 150 ml, 168 ml, 181 ml, 200 ml, etc.

[0031] In one embodiment, in the height direction of the water tank assembly 10, or the cleaning device 20, the bottom wall of the first cavity 101 is higher than the bottom wall of the second cavity 102, so that there is a height difference H between the bottom walls of the first cavity 101 and the second cavity 102. Understandably, when the cleaning device 20 is normally placed, for example, when it is placed on a surface to be cleaned, a base station, or other supporting surface with its bottom surface facing the supporting surface, the bottom wall of the second cavity 102 is closer to the supporting surface than the bottom wall of the first cavity 101. This height difference allows the wastewater in the first cavity 101 to automatically flow to the second cavity 102 under gravity without the need for an additional power unit, reducing the cost and design complexity of the cleaning device 20.

[0032] In one embodiment, to reduce the cost and design complexity of the cleaning equipment 20, a first sidewall (not shown in the figure) is provided between the first cavity 101 and the second cavity 102. The first sidewall has a through hole 103, and a valve assembly 120 is disposed on the first sidewall, with the valve assembly 120 covering the through hole 103. Understandably, there is a height difference between the first cavity 101 and the second cavity 102. The through hole 103 is opened on the common sidewall of the first cavity 101 and the second cavity 102. When the valve assembly 120 is opened, the wastewater in the first cavity 101 can automatically flow to the second cavity 102 through the through hole 103.

[0033] In one embodiment, to reduce the cost and design complexity of the cleaning equipment 20, the valve assembly 120 is a purely mechanical structure. This means that the valve assembly 120 can be opened or closed without additional control circuitry. Specifically, the valve assembly 120 is located on the side wall of the second cavity 102 that communicates with the first cavity. For example, the side wall can be the first side wall mentioned in the above embodiment. The valve assembly 120 is located on the side of the first side wall facing the second cavity 102, meaning it is located within the second cavity 102. The valve assembly 120 includes a rotating shaft 121 and a valve cover 122. The rotating shaft 121 is rotatably connected to the side wall or the first side wall; the valve cover 122 is rotatably connected to the rotating shaft 121 and is configured to cover the through hole 103 communicating between the second cavity 102 and the first cavity 101. Understandably, when the air pump 262 is started, the valve cover 122 will be adsorbed onto the first side wall and cover the through hole 103. At this time, the valve assembly 120 is in the closed state, and the first chamber 101 and the second chamber 102 are two unconnected chambers. When the air pump 262 stops pumping air, the sewage in the first chamber 101 will push open the valve cover 122 under the action of gravity, so that the sewage will automatically flow from the first chamber 101 to the second chamber 102.

[0034] In one embodiment, to enhance the reliability of wastewater suction by the cleaning device 20, a protrusion 123 is formed on the side of the valve cover 122 facing the first sidewall along the axial direction of the through hole 103. The protrusion 123 is used to seal the through hole 103. Understandably, when the air pump 262 draws in gas, the valve cover 122 adheres to the first sidewall, causing the protrusion 123 to seal the through hole 103. This improves the sealing performance of the first cavity 101, accelerates the formation of negative pressure in the first cavity 101, increases the sensitivity of negative pressure generation within the first cavity 101, and further enhances the reliability of wastewater suction by the cleaning device 20.

[0035] In one embodiment, the valve assembly 120 further includes a first seal 124, which is sleeved on the periphery of the protrusion 123 to further improve the sealing performance of the first cavity 101 when the air pump 262 draws gas. This allows the first cavity 101 to accelerate the formation of negative pressure, improve the sensitivity of negative pressure generation in the first cavity 101, and thus enhance the reliability of sewage suction of the cleaning equipment 20.

[0036] In one embodiment, the first seal 124 may be an O-ring. Alternatively, the first seal 124 may be a silicone skirt fixedly connected to the periphery of the protrusion 123. In the axial direction, the first seal 124 and the protrusion 123 are stepped, that is, the end of the protrusion 123 facing the through hole 103 protrudes from the first seal 124.

[0037] In one embodiment, the housing 110 includes an upper cover 112 and a lower housing 111. The lower housing 111 forms a first cavity 101 and a second cavity 102 with openings. The upper cover 112 covers the openings and is detachably connected to the lower housing 111. This detachable connection facilitates later repair and maintenance of the water tank assembly 10. Part of the bottom wall of the lower housing 111 is recessed inwards, so that the bottom wall of the first cavity 101 is higher than the bottom wall of the second cavity 102, thereby creating a height difference between the bottom walls of the first cavity 101 and the second cavity 102.

[0038] In one embodiment, the pivot 121 of the valve assembly 120 may be rotatably connected to the side of the top cover 112 facing the bottom wall of the second cavity 102.

[0039] In one embodiment, the water tank assembly 10 further includes a second seal 115, which is disposed on the side of the upper cover 112 facing the opening. This embodiment improves the sealing performance of the first cavity 101 and the second cavity 102 by providing the second seal 115, thereby reducing sewage splashing. Furthermore, the improved sealing performance of the first cavity 101 enhances the sensitivity of negative pressure generation within the first cavity 101, thus improving the reliability of sewage suction by the cleaning device 20.

[0040] In one embodiment, the first cavity 101 is provided with an airflow pipe 117 communicating with the air extraction channel and the first cavity 101. The first cavity 101 is also provided with a liquid collection pipe 116 communicating with the liquid collection container and the first cavity 101. The airflow pipe 117 and the liquid collection pipe 116 extend from the bottom wall of the first cavity 101 toward the upper cover 112, and the end of the airflow pipe 117 is provided with an air extraction port, and the end of the liquid collection pipe 116 is provided with a liquid collection inlet. The upper cover 112 is provided with a first annular groove 118 and a second annular groove 119 in the portion of the first cavity 101. The first annular groove 118 is fitted around the outer periphery of the end of the airflow pipe 117, and the second annular groove 119 is fitted around the outer periphery of the end of the liquid collection pipe 116. In this embodiment, the first cavity 101 is provided with an airflow pipe 117 and a liquid collection pipe 116, and both the airflow pipe 117 and the liquid collection pipe 116 extend from the bottom wall of the first cavity 101 toward the upper cover 112, which can accelerate the gas suction speed or reduce the resistance of sewage entering the first cavity 101. In addition, the upper cover 112 is provided with a first annular groove 118 and a second annular groove 119, which are sleeved on the outer periphery of the ends of the airflow pipe 117 and the liquid collection pipe 116, which can alleviate the entry of foreign objects into the airflow pipe 117 or prevent sewage from the liquid collection pipe 116 from splashing into the airflow pipe 117.

[0041] In one embodiment, the water tank assembly 10 further includes a detection element 130 disposed in the second cavity 102. The detection element 130 is used to detect the amount of sewage in the second cavity 102, so that the cleaning equipment 20 can keep track of the sewage storage status of the water tank assembly 10 at any time, and can promptly process the sewage when the amount of sewage in the second cavity 102 reaches a preset value, thus preventing sewage overflow from the water tank assembly 10. The detection element 130 is a conventional sensor or functional circuit used for water volume detection, and will not be described in detail here.

[0042] In one embodiment, a release button 113 is provided on the outer side wall of the lower housing 111, and the release button 113 is located on the side wall of the second cavity 102. The release button 113 is used to engage with the release structure of the base station after the cleaning device 20 enters the base station. When the release structure of the base station presses against the release button 113, the release button 113 is opened, and the wastewater in the second cavity 102 and the first cavity 101 is released into the base station. Compared to the side wall where the first cavity 101 is located, the release button 113 in this embodiment is located on the side wall of the second cavity 102, which can empty the wastewater in the second cavity 102 and the first cavity 101, reducing wastewater residue.

[0043] In one embodiment, the sidewall of the lower housing 111 is recessed inward to form a fastening portion 114, which facilitates the removal of the water tank assembly 10 from the cleaning device 20.

[0044] This application provides a cleaning device 20, see reference. Figures 5-8 The cleaning device 20 includes a cleaning body 210 and a water tank assembly 220. The cleaning body 210 is configured to clean the surface to be cleaned. The water tank assembly 220 is detachably connected to the cleaning body 210. The cleaning body 210 is provided with an air extraction channel and a liquid collection container, and the first cavity 101 is connected to the air extraction channel and the liquid collection container. The water tank assembly 220 can be any one of the water tank assembly 220 embodiments described above, and is not limited herein.

[0045] The cleaning device 20 of this application, by setting up a water tank assembly 220, allows the air pump 262 to only pump air from the first chamber 101 when pumping sewage, enabling the first chamber 101 to quickly form a negative pressure. This negative pressure then promptly draws the sewage from the collection container into the first chamber 101, preventing sewage overflow and enhancing the reliability of sewage pumping. Furthermore, without increasing additional costs, the cleaning device 20, by modifying the structure of the existing water tank assembly 220 and coordinating the on / off logic of the air pump 262 during live water cleaning, can better control the sewage pumping function.

[0046] Specifically, the water tank assembly 220 is disposed on the side B of the cleaning body 210, the bottom A of the cleaning body 210 is provided with a cleaning component, and the top C of the cleaning body 210 is provided with a radar 240. The cleaning component includes at least a roller cloth 231, and may also include a roller brush 232, a side brush 233, or a roller brush 232 and a side brush 233.

[0047] In one embodiment, a power button 250 is also provided on the top C of the cleaning body 210. The power button 250 is used to start the cleaning device 20. In this embodiment, the power button 250 is located on the top C of the cleaning body 210, which makes it easy for the user to find and operate.

[0048] In one embodiment, the air extraction channel includes a first tube 261 and an air pump 262, with both ends of the first tube 261 connected to the air pump 262 and the first cavity 101, respectively. The first tube 261 can be a separate component, or it can be integrated into the cleaning body 210; there are no limitations on this.

[0049] In one embodiment, the cleaning device 20 further includes an adapter 263, which is disposed on the outer side wall of the housing 110. The adapter 263 is used to connect the air extraction channel with the first pipe 261 and to connect the liquid collection pipe 116 with the liquid collection container. The adapter 263 may be integrated with the housing 110, or it may be detachably connected to the housing 110; this is not limited.

[0050] In one embodiment, the water outlet channel of the cleaning device 20 is provided with two sub-channels 271, and the water outlets of the two sub-channels 271 are located on the left and right sides of the roller mop 231 and close to the middle, so that the water from the clean water tank can be sprayed evenly onto the roller mop 231. For example, along the axial direction of the roller mop 231, the water outlets of the two sub-channels 271 are located at 1 / 4 and 3 / 4 positions of the roller mop 231, respectively.

[0051] In one embodiment, the cleaning device 20 further includes two spray covers 272, which are respectively arranged to correspond to the water outlets of the two sub-channels 271, so that the water from the outlets can be sprayed evenly onto the roller cloth 231, and further, the splashing of water from the outlets can be reduced.

[0052] The above are merely embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A water tank assembly, characterized in that, The water tank assembly, used in cleaning equipment, includes: The housing has a first cavity and a second cavity. The first cavity is configured to communicate with the air extraction channel and liquid collection container of the cleaning equipment. The first cavity is also closable and connected to the second cavity. A valve assembly configured to open or close the communication between the first cavity and the second cavity.

2. The water tank assembly according to claim 1, characterized in that, In the height direction of the cleaning device, the bottom wall of the first cavity is higher than the bottom wall of the second cavity, so that there is a height difference between the bottom walls of the first cavity and the bottom walls of the second cavity.

3. The water tank assembly according to claim 1, characterized in that, A first sidewall is provided between the first cavity and the second cavity, and the first sidewall is provided with a through hole. The valve assembly is disposed on the first sidewall and covers the through hole.

4. The water tank assembly according to claim 1, characterized in that, The valve assembly is disposed on the side wall of the second cavity communicating with the first cavity, and the valve assembly includes: The pivot is rotatably connected to the side wall; A valve cover is rotatably connected to the rotating shaft, and the valve cover is configured to cover a through hole in which the second cavity communicates with the first cavity.

5. The water tank assembly according to claim 4, characterized in that, The valve cover has a protrusion on the side facing the sidewall along the axial direction of the through hole, and the protrusion is used to block the through hole.

6. The water tank assembly according to claim 5, characterized in that, The valve assembly also includes: The first sealing element is fitted around the periphery of the protrusion.

7. The water tank assembly according to claim 2, characterized in that, The enclosure includes: Top cover; The lower housing forms a first cavity and a second cavity with openings, and the upper cover is disposed on the openings and detachably connected to the lower housing; The bottom wall of the lower housing is recessed inward to create a height difference between the bottom wall of the first cavity and the bottom wall of the second cavity.

8. The water tank assembly according to claim 7, characterized in that, The first cavity is provided with an airflow pipe communicating with the air extraction channel and the first cavity, and a liquid collection pipe communicating with the liquid collection container and the first cavity. The airflow pipe and the liquid collection pipe extend from the bottom wall of the first cavity toward the top cover, and the end of the airflow pipe is provided with an air extraction port, and the end of the liquid collection pipe is provided with a liquid collection inlet. The top cover has a first annular groove and a second annular groove in the portion of the first cavity. The first annular groove is fitted around the outer periphery of the end of the airflow pipe, and the second annular groove is fitted around the outer periphery of the end of the liquid collection pipe.

9. The water tank assembly according to any one of claims 1-8, characterized in that, The water tank assembly also includes: A detection element is disposed in the second cavity, and the detection element is used to detect the amount of sewage in the second cavity.

10. The water tank assembly according to claim 1, characterized in that, When the air extraction channel is working, the valve assembly is in a closed state to close the connection between the first cavity and the second cavity, thereby generating negative pressure in the first cavity, and the sewage in the collection container enters the first cavity under the action of negative pressure; when the air extraction channel stops working, the valve assembly is in a open state to open the connection between the first cavity and the second cavity, thereby allowing the sewage in the first cavity to enter the second cavity.

11. A cleaning device, characterized in that, The cleaning equipment includes: The cleaning unit is configured to clean the surface to be cleaned. The water tank assembly according to any one of claims 1-10 is detachably connected to the cleaning body; in, The cleaning body is provided with an air extraction channel and a liquid collection container, and the first cavity is connected to the air extraction channel and the liquid collection container.

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