Water tank, base station, and cleaning system

Abstract

The present application relates to the technical field of cleaning devices, and discloses a water tank, a base station, and a cleaning system. The water tank comprises a tank body and a protective member; the tank body is provided with a water inlet and an air suction port, and the water inlet and the air suction port are both in communication with the interior of the tank body; the protective member is located on the outer side of the water inlet. When wastewater flows out from the water inlet, under the action of the protective member, the wastewater flowing in through the water inlet can be restricted from entering the air suction port, thereby reducing the amount of water entering the air suction port, reducing the risk of damage to a fan. The protective member can limit the movement range of wastewater, so that wastewater flowing in through the water inlet can be quickly mixed with wastewater inside the water tank, preventing splashing of wastewater. The base station comprises a base station body and the water tank, wherein the water tank is mounted on the base station body. The cleaning system comprises the water tank.

Description

Water tank, base station and cleaning system

[0001] Cross-reference to Related Applications

[0002] This application claims priority to Chinese Patent Application No. 202422218450.X, filed September 10, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application belongs to the technical field of cleaning equipment, and in particular relates to a water tank, a base station and a cleaning system. BACKGROUND

[0004] The suction port of the water tank is generally connected with the fan, and through the action of the fan, a negative pressure state is formed in the interior of the water tank to drive the liquid to enter the water tank from the water inlet. Due to the limitation of space, the water inlet and the suction port are generally close to each other, and the liquid is easy to enter the fan through the suction port, causing the fan to fail. SUMMARY

[0005] The present application aims to at least be able to solve the technical problem that user sewage is easy to enter the suction port, causing the fan to be flooded. To this end, the present application provides a water tank, which reduces the risk of damage to the fan by reducing the amount of water entering the suction port.

[0006] The present application also discloses a base station.

[0007] The present application also discloses a cleaning device.

[0008] The water tank provided by the first aspect of the present application comprises:

[0009] A tank body is provided with a water inlet and a suction port, and the water inlet and the suction port are both in communication with the interior of the tank body.

[0010] A protective piece is located outside the water inlet and is adapted to limit the liquid flowing from the water inlet from entering the suction port.

[0011] In some embodiments, along a direction perpendicular to the bottom surface of the tank body, the projection of the protective piece on the bottom surface of the tank body at least partially overlaps the projection of the water inlet on the bottom surface of the tank body.

[0012] In some embodiments, along a direction perpendicular to the bottom surface of the tank body, the projection of the water inlet on the bottom surface of the tank body is located within the projection of the protective piece on the bottom surface of the tank body.

[0013] In some embodiments, the protective piece is at least partially arc-shaped.

[0014] In some embodiments, the shield is a shield wall, which is arranged between the water inlet and the air outlet.

[0015] In some embodiments, the shield comprises a top cover and a side portion, which are connected; the top cover at least partially overlaps the water inlet in the projection of the bottom surface of the tank, and the side portion at least partially does not overlap the water inlet in the projection of the bottom surface of the tank.

[0016] In some embodiments, at least part of the top cover is located on the side of the water inlet away from the air outlet.

[0017] In some embodiments, the side portion is at least partially located between the air outlet and the water inlet.

[0018] In some embodiments, the water tank further comprises a guide pipe, which is in communication with the water inlet through the shield.

[0019] In some embodiments, the guide pipe is located on the side of the shield away from the air outlet.

[0020] In some embodiments, the guide pipe is arranged horizontally.

[0021] In some embodiments, the shield is a guide pipe, and the liquid inlet end of the guide pipe is in communication with the water inlet.

[0022] In some embodiments, the height of the water inlet is less than the height of the air outlet.

[0023] In some embodiments, the inside of the tank forms a mounting step, and the shield is arranged on the mounting step.

[0024] In some embodiments, the water inlet is arranged on the mounting step; a boss is formed on the mounting step, and the air outlet is arranged on the boss.

[0025] In some embodiments, the water tank further comprises a tank cover, which is arranged on the tank; a clamping position of the shield is formed between the tank cover and the mounting step.

[0026] In some embodiments, a limiting portion is arranged on the tank cover, and the limiting portion abuts against the shield when the tank cover is closed on the tank.

[0027] In some embodiments, the shield is snap-connected with the tank.

[0028] The second aspect embodiment of the present application provides a base station, comprising a base station body and the water tank.

[0029] The third aspect embodiment of the present application provides a cleaning system, comprising a cleaning device and the water tank.

[0030] The embodiments of the present application have at least the following beneficial effects:

[0031] After the sewage flows out of the water inlet, the sewage flowing into the suction port from the water inlet can be limited by the protection piece, the water inflow of the suction port is reduced, and the risk of damage to the fan is reduced. The activity range of the sewage can be limited by the protection piece, which is conducive to the rapid integration of the sewage flowing into the water tank from the water inlet, and splashing of the sewage is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0033] Fig. 1 shows a perspective structural schematic view of the water tank of the embodiment of the present application;

[0034] Fig. 2 shows a perspective structural schematic view of the tank body of the water tank of the embodiment of the present application;

[0035] Fig. 3 shows a perspective structural schematic view of the water tank of the embodiment of the present application in the state of opening the tank cover;

[0036] Fig. 4 shows an enlarged view of A in Fig. 1;

[0037] Fig. 5 shows an enlarged view of B in Fig. 2;

[0038] Fig. 6 shows a perspective structural schematic view of the water tank of another embodiment of the present application;

[0039] Fig. 7 shows a perspective structural schematic view of the water tank of another embodiment of the present application;

[0040] Fig. 8 shows a perspective structural schematic view of the water tank of another embodiment of the present application;

[0041] Fig. 9 shows one of the cross-sectional views of the water tank of another embodiment of the present application;

[0042] Fig. 10 shows a perspective structural schematic view of the water tank of another embodiment of the present application;

[0043] Fig. 11 shows a perspective structural schematic view of the protection piece of the water tank of another embodiment of the present application;

[0044] Fig. 12 shows a perspective structural schematic view of the protection piece of the water tank according to another embodiment of the present application.

[0045] Reference signs: 100, tank body; 110, water inlet; 120, air outlet; 130, mounting step; 131, second inclined surface; 132, buckle; 133, positioning column; 140, boss; 200, protection piece; 210, top cover; 220, side part; 230, protection wall; 240, first inclined surface; 250, slot; 251, elastic sheet; 260, positioning hole; 300, tank cover; 310, limiting part; 400, flow guide pipe. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0047] In addition, the reference numbers and / or reference letters can be repeated in different examples in the present application, and such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0048] A water tank is arranged in a general base station to collect liquid. The air outlet of the water tank is generally connected with a fan, and through the action of the fan, a negative pressure state is formed in the inside of the water tank to drive sewage to enter the water tank from the water inlet. Due to the limitation of space, the water inlet and the air outlet are generally close to each other, and the sewage is easy to enter the fan through the air outlet, causing the water inlet of the fan to fail.

[0049] The present application will be described below in conjunction with the drawings and with reference to specific embodiments:

[0050] Please refer to Fig. 1 and Fig. 2, the first aspect embodiment of the present application provides a water tank, which comprises a tank body 100 and a protection piece 200, the tank body 100 is provided with a water inlet 110 and an air outlet 120, both the water inlet 110 and the air outlet 120 are communicated with the inside of the tank body 100; the protection piece 200 is located outside the water inlet 110, and is suitable for limiting the liquid flowing from the water inlet 110 to enter the air outlet 120.

[0051] The liquid flows out of the water inlet 110 and is affected by the protective piece 200, which can limit the liquid flowing into the air suction port 120 from the water inlet 110, reduce the water inflow of the air suction port 120, and further reduce the risk of damage to the fan. The protective piece 200 can limit the activity range of the liquid, which is conducive to the liquid flowing into the water tank from the water inlet 110 quickly mixing with the liquid in the water tank, and avoiding splashing of the liquid.

[0052] The water tank can be a clean water tank, a sewage tank, or a tank containing other liquids. The embodiment of the present application takes the sewage tank of the base station as an example, and the sewage enters the water tank from the water inlet 110.

[0053] The protective piece 200 can be at least partially arranged between the air suction port 120 and the water inlet 110, which can prevent the sewage flowing into the fan through the air suction port 120 from the water inlet 110, reduce the risk of damage to the fan, and thus improve the service life of the device. The protective piece 200 can be partially located between the air suction port 120 and the water inlet 110, or the protective piece 200 can be entirely located between the air suction port 120 and the water inlet 110, as long as the protective piece 200 can isolate the air suction port 120 and the water inlet 110.

[0054] The protective piece 200 can also guide the sewage flowing into the air suction port 120 from the water inlet 110 to a direction away from the air suction port 120, thereby limiting the sewage flowing into the air suction port 120 from the water inlet 110 and avoiding water entering the fan. The protective piece 200 can be at least partially arranged on the water inlet 110 to limit the activity range of the sewage sprayed from the water inlet 110 and avoid splashing of the sewage to the air suction port 120. For example, the protective piece 200 can be an inclined cover arranged on the water inlet 110 to guide the sewage to a side away from the air suction port 120.

[0055] As shown in FIGS. 9 and 10, the protective piece 200 is located outside the water inlet 110 and can specifically guide and isolate the sewage flowing into the water inlet 110, which can effectively prevent the sewage from entering the air suction port 120 and thus avoid water entering the fan.

[0056] Referring to FIG. 1, in some embodiments, along a direction perpendicular to the bottom surface of the tank 100, the orthographic projection of the protective piece 200 on the bottom surface of the tank 100 at least partially overlaps the orthographic projection of the water inlet 110 on the bottom surface of the tank 100, so as to reduce the risk of the sewage sprayed from the water inlet 110 directly splashing to the air suction port 120. Generally, the sewage is sprayed from bottom to top, and the above arrangement can shield the sewage flowing into the water inlet 110 by the protective piece 200, thereby reducing splashing of the sewage.

[0057] Referring to FIG. 3, in some embodiments, the box 100 further comprises a box cover 300, which is arranged on the box 100. The box cover 300 is beneficial to form a sealed environment in the box 100. The box 100 can be cleaned by opening the box cover 300. The projection of the protective member 200 on the bottom surface of the box 100 at least partially overlaps the projection of the water inlet 110 on the bottom surface of the box 100, which can reduce the risk of splashing of the sewage flowing into the water inlet 110, and avoid the box cover 300 from being impacted by the sewage and bouncing away or being contaminated.

[0058] Referring to FIG. 1, in some embodiments, the projection of the water inlet 110 on the bottom surface of the box 100 is located in the projection of the protective member 200 on the bottom surface of the box 100 in the direction perpendicular to the bottom surface of the box 100. The sewage flowing into the water inlet 110 directly acts on the protective member 200, which prevents the sewage from splashing. The box cover 300 is generally arranged on the top of the water tank. If the sewage directly sprays out of the water inlet 110, it is easy to splash on the box cover 300 and condense on the box cover 300 to drop into the air outlet 120. The projection of the protective member 200 on the bottom surface of the box 100 completely covers the projection of the water inlet 110 on the bottom surface of the box 100, which can prevent the sewage from splashing and contaminating the box cover 300, increase the workload of cleaning the water tank, and avoid the sewage from splashing on the box cover 300 and then falling back into the air outlet 120, causing damage to the fan.

[0059] Referring to FIG. 4, in some embodiments, the protective member 200 is at least partially arc-shaped. The arc-shaped surface of the protective member 200 can reduce the resistance of the sewage flow, which is beneficial to guide the flow of the sewage and avoid the sewage from stagnating on the protective member 200. The arc-shaped design improves the structural strength of the protective member 200 and improves the stability of the protective member 200.

[0060] Referring to FIG. 4, in some embodiments, the protective member 200 comprises a top cover 210, and the projection of the top cover 210 on the bottom surface of the box 100 at least partially overlaps the projection of the water inlet 110 on the bottom surface of the box 100, which can prevent the sewage flowing into the water inlet 110 from splashing. The protective member 200 further comprises a side portion 220, and the top cover 210 and the side portion 220 are connected. The projection of the side portion 220 on the bottom surface of the box 100 at least partially does not overlap the projection of the water inlet 110 on the bottom surface of the box 100. The side portion 220 can block the liquid flowing into the air outlet 120 from the water inlet 110, which reduces the risk of damage to the fan caused by the sewage flowing into the air outlet 120 from the water inlet 110.

[0061] Referring to FIG. 4, in some embodiments, the side portion 220 is at least partially located between the air outlet 120 and the water inlet 110 to isolate the air outlet 120 and the water inlet 110, which reduces the risk of damage to the fan caused by the sewage flowing into the air outlet 120 from the water inlet 110.

[0062] Referring to FIG. 4, in some embodiments, the side portion 220 can be arc-shaped, which is more conducive to guiding the flow direction of the sewage and reducing the amount of sewage retained on the protection member 200.

[0063] Referring to FIG. 4, in some embodiments, at least a portion of the top cover 210 is located on the side of the water inlet 110 away from the air outlet 120, so as to guide the sewage flowing away from the air outlet 120, thereby preventing the sewage flowing from the water inlet 110 from entering the air outlet 120.

[0064] In some embodiments, the end of the top cover 210 away from the air outlet 120 can be downwardly inclined, so that the sewage splashed onto the top cover 210 flows to the end of the top cover 210 away from the air outlet 120, so as to further limit the sewage flowing from the water inlet 110 from entering the air outlet 120. Downwardly inclined refers to the direction of the top cover 210 inclined toward the bottom of the water tank.

[0065] Referring to FIG. 4, in some embodiments, the top cover 210 can be arc-shaped, which is more conducive to guiding the flow direction of the sewage and reducing the amount of sewage retained on the top cover 210.

[0066] Referring to FIG. 5, in some embodiments, the inside of the tank 100 forms a mounting step 130, and the protection member 200 is arranged on the mounting step 130. The mounting step 130 can provide a stable mounting environment for the protection member 200, so as to avoid the protection member 200 from being impacted by the sewage and falling off.

[0067] Referring to FIG. 5, in some embodiments, the water inlet 110 is arranged on the mounting step 130, which facilitates the processing of the water inlet 110. The top cover 210 extends along the direction away from the air outlet 120, so that the protection member 200 and the mounting step 130 form a water outlet. Therefore, the sewage flowing from the water inlet 110 flows out of the water outlet in the direction away from the air outlet 120. The top cover 210 can extend out of the mounting step 130, so that the water outlet is arranged toward the bottom of the water tank, which is conducive to guiding the flow direction of the sewage and making the sewage flowing from the water inlet 110 mix with the sewage in the water tank.

[0068] Referring to FIG. 5, in some embodiments, the height of the water inlet 110 is less than the height of the air outlet 120. By means of the height difference between the water inlet 110 and the air outlet 120, the risk of the sewage flowing from the water inlet 110 splashing to the air outlet 120 can be reduced.

[0069] Please refer to FIG. 5, in some embodiments, the boss 140 is formed on the installation step 130, and the suction port 120 is arranged on the boss 140. The boss 140 can increase the height of the suction port 120, reduce the risk of sewage splashing into the suction port 120 from the water inlet 110, and prevent the sewage in the box 100 from splashing into the suction port 120 under the action of external force, so as to ensure that the environment around the suction port 120 is dry, and the fan is prevented from being damaged by moisture.

[0070] Please refer to FIG. 6, in some embodiments, the water tank further comprises a flow guide pipe 400, which is in communication with the water inlet 110 through the protective piece 200, so as to guide the flow path of the sewage flowing into the water inlet 110, so that the sewage flowing into the water inlet 110 can be smoothly mixed with the water in the water tank, and the splashing of the sewage is reduced. The inlet end of the flow guide pipe 400 can be in communication with the water outlet.

[0071] Please refer to FIG. 6, in some embodiments, the flow guide pipe 400 is located on the side of the protective piece 200 away from the suction port 120, which can guide the sewage to the side away from the suction port 120, and reduce the risk of water entering the suction port 120.

[0072] Please refer to FIG. 6, in some embodiments, the flow guide pipe 400 is arranged horizontally, which can make full use of the horizontal space of the water tank, so that the flow of the sewage after entering the water inlet 110 is relatively smooth; the length of the flow guide pipe 400 can be appropriately extended by using the horizontal space of the water tank, so that the water flow is more stable. If the flow guide pipe 400 is arranged vertically, the water outlet end of the flow guide pipe 400 faces the box cover 300, and the sewage flowing out of the flow guide pipe 400 is easy to spray on the box cover 300; if the flow guide pipe 400 is arranged vertically, the water outlet end of the flow guide pipe 400 faces the bottom of the water tank, and the sewage in the water tank is easy to flood the water outlet end of the flow guide pipe 400 after rising, resulting in backflow of the sewage.

[0073] In some embodiments, the flow guide pipe 400 can be a square pipe or a circular pipe, and the specific structure of the flow guide pipe 400 is not particularly limited in the embodiments of the present application.

[0074] Please refer to FIG. 7, in some embodiments, the protective piece 200 is a drainage pipe, and the water inlet end of the protective piece 200 is in communication with the water inlet 110. The sewage flowing into the water inlet 110 can be directly injected into the water tank through the pipe body, and the sewage can be guided to the side away from the suction port 120 by the guiding effect of the protective piece 200, so as to prevent water from entering the suction port 120. The drainage pipe can be a square pipe or a circular pipe, and the specific structure of the pipe body is not particularly limited in the embodiments of the present application.

[0075] Please refer to FIG. 8, in some embodiments, the protection piece 200 is a protection wall 230, which is arranged between the water inlet 110 and the air outlet 120. The protection wall 230 can isolate the air outlet 120 and the water inlet 110, so as to limit the sewage splashing from the water inlet 110 to the air outlet 120. The protection piece 200 can be a partition plate, which is arranged between the air outlet 120 and the water inlet 110 to isolate the air outlet 120 and the water inlet 110, and reduce the risk of sewage entering the air outlet 120.

[0076] Please refer to FIG. 1, in some embodiments, the clamping position of the protection piece 200 is formed between the box cover 300 and the installation step 130. After the box cover 300 is closed, the box cover 300 can abut against the protection piece 200, so as to reduce the displacement of the protection piece 200 during the working process, and increase the reliability of the protection piece 200.

[0077] Please refer to FIG. 1, in some embodiments, the protection piece 200 can abut against the side surface of the boss 140, so as to strengthen the stability of the protection piece 200 and reduce the shaking of the protection piece 200 during the working process.

[0078] Please refer to FIG. 5 and FIG. 11, in some embodiments, the first inclined surface 240 can be arranged on the protection piece 200, and the second inclined surface 131 can be arranged on the edge of the installation step 130. The first inclined surface 240 abuts against the second inclined surface 131, so as to ensure that the protection piece 200 is installed in place and improve the installation efficiency.

[0079] In some embodiments, one of the protection piece 200 and the installation step 130 is provided with a positioning hole 260, and the other is provided with a positioning column 133. The positioning column 133 is arranged in the inside of the positioning hole 260, so as to further strengthen the positioning effect and avoid the displacement of the protection piece 200 during the use. As shown in FIG. 5 and FIG. 12, the positioning hole 260 is arranged on the protection piece 200, and the positioning column 133 is arranged on the installation step 130.

[0080] Please refer to FIG. 1, in some embodiments, the limiting part 310 is arranged on the box cover 300. When the box cover 300 is closed on the box body 100, the limiting part 310 abuts against the protection piece 200. The limiting part 310 plays a supporting and fixing role on the protection piece 200, so as to prevent the protection piece 200 from loosening during the working process. The limiting part 310 can be arc-shaped, so as to fit the surface of the protection piece 200 and ensure the fixing effect.

[0081] Please refer to FIG. 5 and FIG. 11, in some embodiments, the protection piece 200 is clamped and connected with the box body 100, so as to facilitate the dismounting of the protection piece 200 for cleaning.

[0082] In some embodiments, one of the mounting step 130 and the shield 200 is provided with the buckle 132, and the other is provided with the slot 250. The installation of the shield 200 can be completed by the cooperation of the buckle 132 and the slot 250. Referring to FIG. 5 and FIG. 12, the mounting step 130 is provided with the buckle 132, and the shield 200 is provided with the slot 250. The sidewall of the slot 250 can be provided with the elastic sheet 251, which can abut on the buckle 132 to prevent the buckle 132 from sliding out of the slot 250. The end of the elastic sheet 251 extends out of the slot 250. During installation, the elastic sheet 251 can be bent to deform the elastic sheet 251, so as to facilitate the insertion of the buckle 132 into the slot 250. When the elastic sheet 251 is released, the elastic sheet 251 is reset to abut on the buckle 132, so as to complete the installation of the shield 200. The elastic sheet 251 can be curved, so that the elastic sheet 251 has elasticity. The elastic sheet 251 is provided with the abutting protrusion on the side facing the buckle 132, so as to improve the friction between the elastic sheet 251 and the buckle 132, and prevent the buckle 132 from sliding out of the slot 250. The abutting protrusion can be provided with the inclined surface, so as to further prevent the buckle 132 from sliding out of the slot 250.

[0083] The second aspect embodiment of the present application provides a base station, which comprises a base station body and the water tank.

[0084] It can be understood that the water tank has the beneficial effects of the above-mentioned embodiments, and the base station also has the beneficial effects of the above-mentioned embodiments. For details, refer to the above-mentioned embodiments, which will not be repeated here.

[0085] The second aspect embodiment of the present application provides a cleaning system, which comprises a cleaning device and the water tank.

[0086] It can be understood that the water tank has the beneficial effects of the above-mentioned embodiments, and the cleaning system also has the beneficial effects of the above-mentioned embodiments. For details, refer to the above-mentioned embodiments, which will not be repeated here.

[0087] In the present application, unless otherwise explicitly specified and limited, "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "over" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. "Below", "under" and "underneath" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.

[0088] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0089] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0090] Furthermore, the use of terms such as "first" and "second" in this application is 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 one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0091] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A water tank characterized by, The water tank comprises: a box (100) provided with a water inlet (110) communicating with the inside of the box (100); a shield (200) located outside the water inlet (110), the shield (200) being at least partially arranged between the air outlet (120) and the water inlet (110) and being adapted to limit the liquid flowing from the water inlet (110) from entering the air outlet (120).

2. The water tank of claim 1, wherein, In a direction perpendicular to the bottom surface of the box (100), the projection of the shield (200) on the bottom surface of the box (100) at least partially overlaps the projection of the water inlet (110) on the bottom surface of the box (100).

3. The water tank of claim 2, wherein, In a direction perpendicular to the bottom surface of the box (100), the projection of the water inlet (110) on the bottom surface of the box (100) is located within the projection of the shield (200) on the bottom surface of the box (100).

4. The water tank of claim 1, wherein, The shield (200) is a shield wall (230) arranged between the water inlet (110) and the air outlet (120).

5. The water tank of claim 1, wherein, The shield (200) is a partition plate arranged between the air outlet (120) and the water inlet (110).

6. The water tank according to any one of claims 1 to 5, wherein The shield (200) comprises a top cover (210) and a side portion (220), and the top cover (210) and the side portion (220) are connected.

7. The water tank of claim 6, wherein, The projection of the top cover (210) on the bottom surface of the box (100) at least partially overlaps the projection of the water inlet (110) on the bottom surface of the box (100), and the projection of the side portion (220) on the bottom surface of the box (100) at least partially does not overlap the projection of the water inlet (110) on the bottom surface of the box (100).

8. The water tank of claim 6, wherein, The side portion (220) is at least partially located between the air outlet (120) and the water inlet (110).

9. The water tank according to any one of claims 1 to 5, wherein The water tank further comprises a flow guide pipe (400) communicating with the water inlet (110) through the shield (200).

10. The water tank of claim 9, wherein, The flow guide pipe (400) is arranged horizontally.

11. The water tank according to any one of claims 1 to 5, wherein The shield (200) is a drainage pipe, and the water inlet end of the shield (200) communicates with the water inlet (110).

12. The water tank according to any one of claims 1 to 5, wherein The height of the water inlet (110) is less than the height of the air outlet (120).

13. The water tank of claim 1, wherein, The shield (200) is at least partially arc-shaped.

14. The water tank according to claim 6, wherein the side portion (220) is arc-shaped.

15. The water tank of claim 6, wherein, At least part of the top cover (210) is located on the side of the water inlet (110) away from the air outlet (120).

16. The water tank of claim 9, wherein, The flow guide pipe (400) is located on the side of the shield (200) away from the air outlet (120).

17. The water tank according to any one of claims 1 to 5, wherein The inside of the box (100) forms a mounting step (130), and the shield (200) is arranged on the mounting step (130).

18. The water tank of claim 17, wherein, The water inlet (110) is arranged on the mounting step (130), a boss (140) is formed on the mounting step (130), and the air outlet (120) is arranged on the boss (140).

19. The water tank of claim 17, wherein, The water tank further comprises a tank cover (300) arranged on the tank body (100), and a clamping position of the shield (200) is formed between the tank cover (300) and the mounting step (130).

20. The water tank of claim 19, wherein, A limiting part (310) is arranged on the tank cover (300), and the limiting part (310) is in abutment with the shield (200) when the tank cover (300) is covered on the tank body (100).

21. The water tank according to any one of claims 1 to 5, wherein The shield (200) is snap-connected with the tank body (100).

22. A base station comprising a base station body and the water tank according to any one of claims 1 to 21, wherein the water tank is arranged on the base station body.

23. A cleaning system comprising the water tank according to any one of claims 1 to 21.

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