Water tank filter structure and water tank of floor cleaning robot

Abstract

The present application relates to a water tank filtration structure for a floor washing robot, comprising a box body and a garbage container. A sewage tank is provided on the box body. The garbage container is provided in the box body, and comprises a funnel and a diversion tube. The funnel and the diversion tube are interconnected, defining an internal garbage flow channel. Both the funnel and the diversion tube are provided with a diversion structure, which enables water to circulate in the sewage tank and the garbage container. In the process of extracting the garbage, the water in the sewage tank can be extracted through the diversion structure, and the air outside the garbage container is sucked into the garbage container, making it easier to extract the garbage in the garbage container. After the garbage enters the box body, it is confined in the garbage container to prevent the garbage from falling into the sewage tank, and a diversion structure is provided in the funnel and the diversion tube to generate air circulation in the sewage tank and the garbage container, making it easier to extract the garbage and water.

Description

Technical Field

[0001] The present application relates to the technical field of floor-cleaning robots, and in particular to a water tank filtering structure of a floor-cleaning robot. Background Art

[0002] With the development of floor cleaning robot technology, the functions of floor cleaning robots are becoming more and more perfect. They can clean the floor and do housework intelligently, saving time and effort.

[0003] A floor-cleaning robot has an internal wastewater tank structure that temporarily stores wastewater and garbage after cleaning. After cleaning, it connects to the robot's base station, where a fan promptly extracts the wastewater and garbage from the tank. However, current floor-cleaning robots directly draw garbage into the tank structure, where it easily accumulates in corners and is difficult to drain. This results in a gradual decrease in the tank's capacity, impairing the robot's cleaning performance and shortening its service life. Summary of the Invention

[0004] Based on this, it is necessary to provide a water tank filtering structure for a floor washing robot to address the problem that garbage accumulates in the sewage tank of the floor washing robot and is difficult to discharge.

[0005] A water tank filtration structure for a floor scrubbing robot comprises a box body and a garbage container, wherein a sewage tank is provided inside the box body, and the sewage tank is provided with a sewage inlet and a sewage outlet, and the garbage container comprises a funnel and a diversion pipe which are arranged in the sewage tank and are connected to each other, wherein the funnel is connected to the sewage inlet, and the diversion pipe is connected to the sewage outlet, and a plurality of diversion structures are provided on the side walls of the funnel and the diversion pipe, wherein the diversion structures are configured to drive water in the sewage to flow into the sewage tank outside, and prevent garbage in the sewage from flowing into the sewage tank outside, so as to define a garbage flow channel inside the garbage container.

[0006] By adopting this technical solution, when the robot scrubber is operating, water and garbage are drawn into the garbage container through the sewage inlet of the housing. Water first flows into the sewage tank through the diversion structure on the funnel. Garbage slides down the inner wall of the funnel to the lowest point of the diversion tube. The water in the sewage tank then flows back into the diversion tube through the diversion structure on the diversion tube, forming a backflow between the sewage tank and the diversion tube. When the robot scrubber is operating, the water in the sewage tank sways back and forth as the robot moves across the surface, continuously flushing the inner wall of the diversion tube and preventing garbage from clogging the inner wall of the diversion tube. The funnel and diversion tube are interconnected, defining an internal garbage flow channel and securing the garbage within the garbage flow channel. In the traditional process structure, the water and garbage generated by the floor scrubbing robot when it is working are directly stored in the sewage tank. The sewage tank structure has many dead corners, and garbage is easily accumulated in the dead corners of the sewage tank and is difficult to be discharged in time, resulting in the sewage tank volume gradually decreasing, reducing the cleaning performance of the floor scrubbing robot and shortening its service life. The floor scrubbing robot water tank filter structure of the present application can define the garbage flow area in the garbage container, and the water and garbage are smoothly discharged from the sewage tank through the garbage flow channel defined by the funnel and the diversion pipe, which will not cause problems such as garbage accumulation in the sewage tank and volume reduction.

[0007] In one embodiment of the present application, the guide tube has a bending portion, both ends of the bending portion are connected to the guide tube inlet and the guide tube outlet respectively, and the highest point of the bending portion is arranged close to the top side of the box body.

[0008] By adopting the above technical solution, the diversion pipe has a highest point and a lowest point, and the outlet of the diversion pipe is close to the highest point of the diversion pipe, and at the same time is higher than the horizontal plane in the sewage tank when the floor washing robot is working, so as to prevent the water from shaking in the sewage tank when the floor washing robot is working, causing water overflow and bringing out the garbage in the diversion pipe.

[0009] In one embodiment of the present application, the bending portion is an upwardly convex arc-shaped curved structure.

[0010] By adopting the above technical solution, the curved portion of the guide pipe has an arc-shaped structure, which can make it easier for sewage and garbage to be discharged. If the curved portion has a non-arc-shaped structure, garbage will easily get stuck when passing through the curved portion, making it difficult to discharge. However, the curved portion of the guide pipe in this application is configured as an arc-shaped structure, which makes it easier to discharge garbage.

[0011] In one embodiment of the present application, the diversion structure includes a first diversion hole, which is arranged on the side wall of the funnel, and the aperture of the first diversion hole is smaller than the characteristic diameter of the garbage.

[0012] By adopting the above technical solution, the water and garbage generated when the floor washing robot is working first enter the funnel, and the water flows into the sewage tank from the first diversion hole. Since the aperture of the first diversion hole is smaller than the characteristic diameter of the garbage, the garbage will not flow out of the first diversion hole into the sewage tank. The garbage slides from the inner wall of the funnel into the diversion pipe, and the first diversion hole can realize the separation of water and garbage.

[0013] In one embodiment of the present application, the diversion structure further includes a second diversion hole, which is arranged near the lowest point of the diversion pipe. The second diversion hole is configured to allow water in the sewage tank to flush garbage at the bottom of the diversion pipe.

[0014] By adopting the above technical solution, the second diversion hole can realize the connection between the sewage tank and the diversion pipe. The water in the sewage tank can enter the diversion pipe through the second diversion hole to flush the garbage at the bottom of the diversion pipe, preventing the garbage from accumulating and clogging the bottom of the diversion pipe due to gravity.

[0015] In one embodiment of the present application, an air outlet is provided on the box body, and the air outlet is connected to an external suction device.

[0016] By adopting the above technical solution, the external suction device can suck the air inside the box through the air outlet, so that the box is in a negative pressure state, so that the floor cleaning robot can smoothly inhale water and garbage when working.

[0017] In one embodiment of the present application, the water tank filtration structure of the floor cleaning robot also includes an air extraction connecting device, which is arranged on the upper side of the box body, and an air extraction port is provided on the air extraction connecting device. The air extraction port and the air outlet form an air suction channel through the air extraction connecting device.

[0018] By adopting the above technical solution, during the vacuuming process of the suction device, the air in the box body first enters the vacuum connecting device through the vacuum port, and then is discharged out of the box body from the air outlet. The entire vacuuming process extends the air suction channel formed during the vacuuming. The extension of the air path can prevent the dust in the box body from being directly sucked into the suction device, resulting in a decrease in the working performance of the suction device.

[0019] In one embodiment of the present application, a filter is provided on the air extraction port for filtering garbage in the sewage tank.

[0020] By adopting the above technical solution, when the floor washing robot is working, if the floor is not wet, the garbage on the floor will be dry-sucked into the garbage container. When the suction device draws air, dust and garbage will be easily sucked into the air suction connecting device. The filter net provided on the air suction port can effectively prevent dust and garbage from entering the air suction connecting device, thereby blocking the air circulation channel and preventing garbage from entering the suction device through the air suction connecting paper, resulting in the weakening of the suction performance of the suction device, thereby affecting the cleaning performance of the floor washing robot.

[0021] In one embodiment of the present application, a sewage inlet is provided on the funnel, and a funnel slot is provided at the edge of the funnel, and the funnel slot is used to clip into the air extraction connection device.

[0022] By adopting the above technical solution, the funnel sewage inlet can be mounted on the sewage tank sewage inlet, so that garbage can enter the garbage container from the sewage tank sewage inlet, and the garbage container can be fixed in the sewage tank, and the air extraction connecting device can be clipped into the funnel slot to fix the air extraction connecting device on the upper side of the box body.

[0023] An integrated water tank for a floor-cleaning robot comprises the above-mentioned water tank filter structure for the floor-cleaning robot.

[0024] In summary, the technical solution provided by this application has at least one of the following technical effects:

[0025] 1. By setting a garbage container in the sewage tank, the funnel and diversion pipe that make up the garbage container define a garbage flow channel, which confines the garbage in the garbage container and prevents it from falling into the sewage tank, preventing the garbage from accumulating in the sewage tank and being unable to be discharged, ensuring that the garbage moves in the garbage flow channel and is finally smoothly extracted.

[0026] 2. By providing a first diversion hole at the funnel, the garbage container and the sewage tank are connected to achieve separation of water and garbage, and at the same time, air circulation is achieved between the funnel and the sewage tank, so that garbage will not adhere to the inner wall of the funnel.

[0027] 3. By setting a second diversion hole near the lowest point of the diversion pipe, the water in the sewage tank can flush the bottom of the diversion pipe through the second diversion hole to prevent garbage from clogging the bottom of the diversion pipe. At the same time, air circulation is achieved between the diversion pipe and the sewage tank, making it easier to extract garbage at the bottom of the diversion pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is an overall view of the water tank filter structure of the floor scrubbing robot in this application;

[0029] Figure 2 This is a front view of a garbage container in one embodiment of the present application;

[0030] Figure 3 This is a top view of the box body in one embodiment of the present application.

[0031] Description of reference numerals:

[0032] 10. Box body; 20. Garbage container; 30. Air extraction connection device; 11. Sewage tank; 21. Funnel; 22. Diversion pipe; 23. Diversion structure; 24. Diversion pipe outlet; 31. Air extraction port; 32. Air outlet; 111. Sewage inlet; 112. Sewage outlet; 113. Mounting assembly; 211. Funnel inlet; 212. Funnel slot; 221. Mounting hole; 222. Bending portion; 231. First diversion hole; 232. Second diversion hole; 311. Filter; 1111. Dust cover. DETAILED DESCRIPTION

[0033] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0034] See Figure 1 and Figure 2 , Figure 1 This is an overall view of the water tank filter structure of the floor washing robot in this application. Figure 2 This is a front view of the garbage container 20 in one embodiment of the present application. The water tank filtration structure for a floor scrubbing robot provided in one embodiment of the present application includes a housing 10 and a garbage container 20, with a sewage tank 11 disposed on the housing 10. The garbage container 20 is disposed within the housing 10 and includes a funnel 21 and a diversion tube 22. The funnel 21 and diversion tube 22 are interconnected, defining an internal garbage flow channel to prevent garbage from falling into the sewage tank 11 and being unable to be discharged in time. The garbage container 20 confines the garbage in the garbage flow channel, making it easier to subsequently extract the garbage and water. Both the funnel 21 and the diversion tube 22 are provided with a diversion structure 23. After the garbage enters the sewage tank 11, it is confined in the garbage container 20. Water can flow into the sewage tank 11 through the first diversion hole 231, and then flow back from the sewage tank 11 through the second diversion hole 232 to the garbage container 20. The fluidity of water between the sewage tank 11 and the garbage container 20 prevents garbage from being blocked in the garbage container 20, further solving the problem of garbage being difficult to discharge.

[0035] See Figure 3 , Figure 31 is a top view of the box body 10 in one embodiment of the present application. The box body 10 is used to provide a carrying area for a sewage tank 11. Specifically, a sewage tank 11 is provided inside the box body 10 for collecting water generated when the floor scrubber robot performs cleaning work.

[0036] Specifically, in the embodiment, the sewage tank 11 is provided with a sewage inlet 111 and a sewage outlet 112. Both the sewage inlet 111 and the sewage outlet 112 are configured as protruding pipes within the sewage tank 11. The sewage inlet 111 is configured as a protruding pipe to be connected to the garbage container 20 to secure it within the sewage tank 11. The sewage outlet 112 is provided with a protruding pipe to be able to be connected to the diversion pipe outlet 24, so that water and garbage can be discharged smoothly through the sewage outlet. The positioning of the diversion pipe outlet 24 will be described in detail later. The sewage inlet 111 is used to draw in water and garbage generated by the floor scrubber robot during cleaning operations, and the sewage outlet 112 is used to promptly discharge garbage and sewage generated by the floor scrubber robot during cleaning operations, thereby maintaining the cleanliness of the sewage tank 11.

[0037] Specifically in the embodiment, a mounting assembly 113 is provided on the sewage tank 11 for mounting and fixing the garbage container 20 to prevent the garbage container 20 from shaking in the sewage tank 11 and causing garbage in the garbage container 20 to enter the sewage tank 11 .

[0038] In some other embodiments, the shape of the box body 10 can be adjusted and set according to the shape of the floor cleaning robot without restriction.

[0039] Please refer again Figure 2 The garbage container 20 is used to define the garbage circulation area. Specifically, the garbage container 20 is disposed in the sewage tank 11 and includes a funnel 21 and a diversion pipe 22 that are interconnected. The two define a garbage flow channel inside the sewage tank 11. When the floor scrubber robot performs cleaning work, garbage generated enters the box body 10 and is confined in the garbage container 20. The garbage is confined to the garbage flow channel, making it easier to extract the garbage during subsequent vacuuming, ensuring the cleanliness of the box body 10.

[0040] The funnel 21 and the guide pipe 22 are both provided with a guide structure 23. The guide structure 23 allows water to flow in the sewage tank 11 and the garbage container 20. During the process of pumping out the garbage, the water in the sewage tank 11 can be pumped out through the guide structure 23, and the air outside the garbage container 20 is sucked into the garbage container 20 and takes out the garbage together with the water. After the garbage enters the box body 10, it is confined in the garbage container 20. Water can flow into the sewage tank 11 through the diversion structure 23, and then flow back from the sewage tank 11 to the garbage container 20, preventing the garbage from falling into the sewage tank 11. The internal structure of the sewage tank 11 is complex and has multiple dead corners. If the garbage falls into the sewage tank 11, it is easy to accumulate in the dead corners of the sewage tank 11 and cannot be discharged in time. The garbage container 20 confines the garbage in the garbage flow channel, and the diversion structure 23 is provided in the funnel 21 and the diversion pipe 22 to enable air circulation between the sewage tank 11 and the garbage container 20, making it easier to extract the garbage and water.

[0041] In some other embodiments, the funnel 21 can be set to a trumpet shape, but is not limited to this shape. The inner wall of the funnel 21 should be set to be at a right angle to the bottom of the sewage tank 11 as much as possible to facilitate the garbage to fall quickly into the diversion pipe 22.

[0042] Specifically in the embodiment, a mounting hole 221 is provided on the guide tube 22 , and the mounting hole 221 is fitted with the mounting assembly 113 in the sewage tank 11 to mount and fix the garbage container 20 in the sewage tank 11 .

[0043] In some other embodiments, the diameter of the diversion tube 22 should be greater than or equal to the diameter of the sewage inlet 111 to ensure that the garbage entering the garbage container 20 from the sewage outlet 112 can pass through the diversion tube 22 smoothly.

[0044] The diversion tube 22 has a curved portion 222. Specifically, the two ends of the curved portion 222 connect to the diversion tube inlet (not shown) and the diversion tube outlet 24, respectively. The highest point of the curved portion 222 is located near the top of the housing 10. The diversion tube outlet 24 is interlocked with the sewage outlet 112 at the bottom of the sewage tank 11. The diversion tube outlet 24 is elevated above the highest level in the sewage tank 11. When the floor scrubber is cleaning, even if the water in the sewage tank 11 sloshes back and forth, it will not reach the height of the diversion tube outlet 24, thus preventing water and garbage from overflowing.

[0045] Specifically in the embodiment, the bending portion 222 is an upwardly convex arc-shaped curved structure. The arc-shaped bending portion 222 is easier to discharge garbage, preventing garbage from being stuck in the bending portion 222 of the guide tube 22 and unable to be discharged in time, thereby blocking the guide tube 22.

[0046] The diversion structure 23 includes a first diversion hole 231. Specifically, the first diversion hole 231 is provided on the funnel 21. Water and garbage enter the sewage tank 11 from the sewage inlet 111. The garbage is confined in the garbage container 20, defining a garbage flow path. Water flows into the sewage tank 11 from the first diversion hole 231, and the garbage container 20 and the sewage tank 11 are connected. This allows air circulation between the funnel 21 and the sewage tank 11, allowing garbage to easily fall into the diversion tube 22.

[0047] The diversion structure 23 includes a second diversion hole 232. Specifically, the second diversion hole 232 is provided near the lowest point of the diversion pipe 22. Water in the sewage tank 11 flows into the diversion pipe 22 through the second diversion hole 232. After entering the funnel 21, garbage falls to the lowest point of the diversion pipe 22 due to gravity. The water in the sewage tank 11 and the diversion pipe 22 flows through the second diversion hole 232. The flowing water repeatedly flushes the garbage accumulated at the lowest point of the diversion pipe 22, preventing the garbage from being retained and accumulated at the lowest point of the diversion pipe 22 due to gravity. At the same time, air flow is generated between the sewage tank 11 and the garbage container 20. During the process of pumping out the garbage and water, the water in the sewage tank 11 can enter the diversion pipe 22 through the diversion structure 23 and be pumped out. The garbage in the garbage container 20 is also more easily pumped out because the air in the sewage tank 11 is drawn into the garbage container 20.

[0048] The air outlet 32 ​​provided on the box body 10 is used to connect to an external suction device (not shown). Specifically, the external suction device can suck the air inside the box body 10 through the air outlet 32, placing the box body 10 in a negative pressure state, allowing the floor scrubber robot to smoothly absorb water and garbage during operation.

[0049] Please refer again Figure 1 The air extraction connecting device 30 provided on the upper side of the box body 10 is used to extend the air suction channel formed during air extraction. Specifically, an air extraction port 31 is provided on the air extraction connecting device 30, and the air extraction port 31 is connected to the air outlet 32 ​​through the air extraction connecting device 30 to form an air suction channel. When the floor cleaning robot is working, the box body 10 will be exhausted. During the exhaust process, the extracted air first enters the air extraction connecting device 30 through the air extraction port 31, and then is discharged to the outside of the box body 10 from the air outlet 32. The entire exhaust process extends the air suction channel formed during exhaust. In a general exhaust device, the air extraction port 31 and the air outlet 32 ​​are at the same position, while the air extraction connecting device 30 proposed in this application extends the air path. The extension of the air path can prevent the dust in the box body 10 from being directly sucked into the suction device, thereby reducing the working performance of the suction device.

[0050] Specifically in the embodiment, a filter 311 is provided on the air exhaust port 31, which is used to filter the garbage in the sewage tank 11. When the floor washing robot starts cleaning and the floor is not wet yet, the dust and garbage on the floor will be sucked into the garbage container 20 and float in the sewage tank 11, and then will be sucked into the air exhaust connecting device 30, thereby blocking the air circulation channel and preventing the garbage from entering the suction device through the air exhaust connecting paper, resulting in the weakening of the vacuum performance of the exhaust fan, thereby affecting the cleaning performance of the floor washing robot.

[0051] Please refer again Figure 2 The funnel 21 sewage inlet 111 provided on the funnel 21 is used to introduce garbage into the garbage container 20 and fix the garbage container 20 in the sewage tank 11. Specifically, the funnel 21 sewage inlet 111 can allow garbage to enter the garbage container 20 from the sewage tank 11 sewage inlet 111 and further fix the garbage container 20 in the sewage tank 11.

[0052] Specifically in the embodiment, a dust cover 1111 is provided on the sewage inlet 111 of the funnel 21. When the floor washing robot is not working, the sewage inlet 111 is covered to prevent dust from entering the sewage tank 11. When the floor washing robot is performing cleaning work, the suction device is working, and the inside of the box body 10 is in a negative pressure state. The pressure outside the box body causes the dust cover 1111 to open into the box body, allowing water and garbage to enter the box body 10.

[0053] The funnel slot 212 provided on the edge of the funnel 21 is used to fix the air extraction communication device 30. Specifically, the air extraction communication device 30 is snapped onto the funnel slot 212 to fix the air extraction communication device 30 above the box body 10. The size of the funnel slot 212 is generally set to one-fourth of the edge of the funnel 21.

[0054] An embodiment of the present application provides an integrated water tank for a floor scrubbing robot, including the above-described water tank filter structure for the floor scrubbing robot.

[0055] The implementation principle of the water tank filtration structure of the floor washing robot provided in the present application is as follows: a sewage tank 11 is provided on the box body 10, and a garbage container 20 is provided in the sewage tank 11, including a funnel 21 and a diversion pipe 22. The funnel 21 and the diversion pipe 22 are connected to each other to define an internal garbage flow channel. The funnel 21 and the diversion pipe 22 are both provided with a diversion structure 23. The diversion structure 23 enables water to flow in the sewage tank 11 and the garbage container 20. In the process of extracting garbage, the water in the sewage tank 11 can be extracted through the diversion structure 23, and the garbage can be extracted more easily, thereby ensuring that the sewage tank 11 is clean. The drainage tube 22 has a bend 222, which is configured as an upwardly protruding arc-shaped structure. The outlet of the drainage tube 22 is located near the highest point of the curved drainage tube 22, and is higher than the highest level in the sewage tank 11. This prevents water sloshing and causing water and garbage to overflow from the outlet of the drainage tube 22. The curved bend 222 makes it easier to discharge garbage. The air extraction connection device 30 is disposed on the upper side of the box body 10, extending the air suction channel formed during vacuuming and preventing dust from clogging the air suction channel. The air extraction connection device 30 is snapped onto the funnel slot 212, securing the air extraction connection device 30 above the box body 10.

[0056] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0057] 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0058] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0059] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0060] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0061] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A water tank filter structure for a floor scrubbing robot, characterized in that: include: The box body (10) is provided with a sewage tank (11) therein, and the sewage tank (11) is provided with a sewage inlet (111) and a sewage outlet (112); The garbage container (20) comprises a funnel (21) and a diversion pipe (22) which are arranged in the sewage tank (11) and are in communication with each other. The diversion pipe (22) has a bending portion (222), and the bending portion (222) is an upwardly convex arc-shaped curved structure. The funnel (21) is in communication with the sewage inlet (111), and the diversion pipe (22) is in communication with the sewage outlet (112). A plurality of diversion structures (23) are provided on the side walls of the funnel (21) and the diversion pipe (22). The diversion structures (23) comprise: a first diversion hole (231) which is arranged on the side wall of the funnel (21), and whose aperture is smaller than the characteristic diameter of the garbage; and a second diversion hole (232) which is arranged at the lowest point near the diversion pipe (22) and is configured to enable water in the sewage tank (11) to flush the diversion pipe (22). The diversion structure (23) is configured to drive the water in the sewage to flow into the outer sewage tank (11), while preventing the garbage in the sewage from flowing into the outer sewage tank (11).

2. The water tank filter structure of the floor cleaning robot according to claim 1, characterized in that: The two ends of the bent portion (222) are respectively connected to the guide pipe inlet and the guide pipe outlet (24), and the highest point of the bent portion (222) is arranged close to the top side of the box body (10).

3. The water tank filter structure of the floor cleaning robot according to claim 1, characterized in that: An air outlet (32) is provided on the box body (10), and the air outlet (32) is connected to an external suction device.

4. The water tank filtration structure of the floor cleaning robot according to claim 3 further includes an air extraction connecting device (30), the air extraction connecting device (30) is arranged on the upper side of the box body (10), and an air extraction port (31) is provided on the air extraction connecting device (30), and the air extraction port (31) and the air outlet (32) form an air suction channel through the air extraction connecting device (30).

5. The water tank filter structure of the floor cleaning robot according to claim 4, characterized in that: The air extraction port (31) is provided with a filter screen (311) for filtering the garbage in the sewage tank (11).

6. The water tank filter structure of the floor cleaning robot according to claim 4, characterized in that: A funnel clamping slot (212) is provided at the edge of the funnel (21), and the funnel clamping slot (212) is clamped to the air extraction communication device (30).

7. A water tank for a floor washing robot, characterized in that: It comprises the water tank filter structure of the floor cleaning robot according to any one of claims 1 to 6.

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