Water tank and cleaning device

Abstract

The invention relates to a water tank and a cleaning device, the water tank is provided with a water storage cavity and an air suction flow channel, and the air suction flow channel is provided with a flow channel air inlet communicating with the water storage cavity and a flow channel air outlet communicating with external atmosphere; the water tank comprises two long edges which are oppositely arranged, and a first area and a second area which are oppositely arranged and a middle area located between the first area and the second area are distributed on the top of the water tank in the direction of the long edges; the flow channel air inlet is located in the middle area. When sewage in the water storage cavity shakes due to actions such as rotation, obstacle crossing, sudden stop or collision of the cleaning device, the sewage can be effectively prevented from entering a flow channel air inlet in the middle area due to the fact that the top of the water tank is high, and the water level below the middle area is small in variation amplitude; therefore, the effect of preventing sewage from entering the air suction flow channel to damage the air pump is achieved, the failure rate of the cleaning device is effectively reduced, and the service life of the cleaning device is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of electrical equipment, and in particular to a water tank and a cleaning device. Background Art

[0002] With the development of society and the advancement of science and technology, more and more smart devices are being used in people's lives. As a cleaning device that can automatically navigate and sweep and vacuum the floor, cleaning robots effectively free the user's hands compared to traditional manual cleaning, significantly reducing people's housework burden and bringing great convenience to people's lives.

[0003] Some existing cleaning robots are equipped with real-time cleaning functions. The cleaning robot has a built-in sewage tank. The air pump can pump the sewage generated by cleaning into the sewage tank by applying negative pressure to the sewage tank. However, when the cleaning robot rotates, crosses obstacles, stops suddenly, or collides, the sewage in the sewage tank will surge and rise, so there is a risk of sewage entering the air extraction port, which will then contaminate the electrical components and affect the sewage extraction performance of the cleaning robot. Summary of the invention

[0004] Based on this, it is necessary to provide a water tank and a cleaning device to address the high risk of sewage entering the air suction port.

[0005] According to one aspect of the present application, there is provided a water tank, the water tank having a water storage chamber and an air extraction passage, the air extraction passage having an air passage inlet connected to the water storage chamber and an air passage outlet connected to the external atmosphere;

[0006] The water tank comprises two long sides arranged opposite to each other, and a first area and a second area arranged opposite to each other, and a middle area between the first area and the second area are distributed on the top of the water tank along the direction of the long sides; the air inlet of the flow channel is located in the middle area.

[0007] In one embodiment, the water tank includes two short sides arranged opposite to each other, the middle area includes a first sub-area and a second sub-area respectively adjacent to the two short sides, and a central area located between the first sub-area and the second sub-area; and the flow channel air inlet is located in the central area.

[0008] In one embodiment, the water tank includes a box body and a box cover, the box cover can be opened and closed to one end of the box body, the box body and the box cover together form the water storage cavity, the box cover is located at the top of the water tank, and the air exhaust channel is formed on a side of the box cover facing the water storage cavity.

[0009] In one embodiment, a guide rib is protruded from one side of the box cover toward the water storage chamber, and the water tank also includes a guide member, which covers the guide rib to form the air exhaust channel together with the guide rib, and a notch is provided at one end of the guide rib to form an air inlet of the channel, and the air outlet of the channel is formed on the guide member.

[0010] In one embodiment, the box body has a box body exhaust pipe, and a box body exhaust channel is formed in the box body exhaust pipe. When the box cover is closed on the box body, the box body exhaust channel connects the flow channel air outlet with the external atmosphere.

[0011] In one of the embodiments, the water tank further comprises a first sealing member, one end of which is sleeved on the air extraction pipe of the tank body, and the other end of which is interference fit against the flow guide member and surrounds the air outlet of the flow channel.

[0012] In one embodiment, the water tank further includes a second sealing member, which is installed on one of the tank cover and the tank body and is interference fit with the other of the tank body and the tank cover.

[0013] In one of the embodiments, the box body is further provided with a box body sewage inlet pipe, a box body sewage inlet channel is formed in the box body sewage inlet pipe, and the box body sewage inlet channel connects the water storage cavity with the external atmosphere.

[0014] In one of the embodiments, the water tank further includes two detection components, the two detection components are arranged on the top of the water tank, and the two detection components are staggered in the long side direction and the short side direction of the water tank.

[0015] According to another aspect of the present application, a cleaning device is provided, comprising the above-mentioned water tank, the cleaning device also comprising a base, the water tank is mounted on the base, and the base is provided with a base exhaust channel connected to the exhaust air channel.

[0016] In one embodiment, the base suction channel has a filter section, and a filter element is disposed in the filter section.

[0017] When the above-mentioned cleaning device rotates, overcomes obstacles, stops suddenly or collides, causing the sewage in the water storage chamber to shake, since the top of the water tank is located at a higher position and the water level change range below the middle area is smaller, it can effectively prevent the sewage from entering the flow channel air inlet located in the middle area, thereby achieving the effect of preventing the sewage from entering the exhaust air channel and causing damage to the air pump, effectively reducing the failure rate of the cleaning device, extending the service life of the cleaning device, and compared with setting up an additional driving mechanism, it will not significantly increase the production cost of the cleaning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] FIG. 1 is a schematic diagram of the internal structure of a base and a water tank in one direction according to an embodiment of the present application.

[0021] FIG. 2 is a schematic structural diagram of a water tank according to an embodiment of the present application.

[0022] FIG. 3 is an exploded schematic diagram of a water tank according to an embodiment of the present application.

[0023] FIG. 4 is a schematic diagram of the pipe connection between the water tank and the base according to an embodiment of the present application.

[0024] FIG. 5 is a schematic diagram of the pipe connection between the water tank and the base according to an embodiment of the present application.

[0025] Description of reference numerals:

[0026] 20. Water tank; 21. Box body; 212. Box body exhaust pipe; 212a. Box body exhaust channel; 214. Box body sewage inlet pipe; 214a. Box body sewage inlet channel; 22. Box cover; 221. Guide ribs; 23. Guide member; 24. First sealing member; 25. Second sealing member; 26. Detection member; 20a. Water storage chamber; 20b. Exhaust flow channel; 20c. Channel air inlet; 20d. Channel air outlet; 40. Base; 20a. Base exhaust channel; 40b. Filter section; 40c. Base sewage inlet channel; 41. Third sealing member; 43. Filter member; 45. Installation cover. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0028] In the description of the present application, it should be understood that if 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", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does 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 cannot be understood as a limitation on the present application.

[0029] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0031] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] It should be noted that if 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 a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0033] Referring to Fig. 1, an embodiment of the present application provides a cleaning device (not shown), comprising a base 40, a walking assembly and a cleaning assembly. The walking assembly is mounted at the bottom of the base 40 to drive the cleaning device to move, and the cleaning assembly is mounted on the base 40 to clean the surface to be cleaned.

[0034] Furthermore, in order to realize the self-cleaning function, the cleaning equipment also includes a water tank 20, and the base 40 is also provided with a sewage collection tank and an air pump. The water tank 20 is connected between the sewage collection tank and the air pump. The sewage generated by the self-cleaning of the cleaning component is first collected by the sewage collection tank, and then sucked into the water tank 20 for storage under the negative pressure of the air pump.

[0035] As described in the background art, when the cleaning device performs actions such as rotation, obstacle crossing, emergency stop or collision, the sewage in the water tank 20 will shake and enter the air pump.

[0036] In order to solve the above problems, some existing cleaning devices have a baffle cover in the water tank. When the air pump is working, the water tank and the air pump are connected to each other so that the gas in the water tank can smoothly enter the air pump. When the air pump is turned off, the connection between the water tank and the air pump is blocked by the baffle cover, thereby preventing the sewage in the water tank from entering the air pump. However, when the water tank and the air pump are connected to each other, there is still a risk that the sewage in the water tank enters the air pump. Moreover, the opening and closing of the baffle cover requires the addition of an additional driving mechanism, thereby increasing the production cost of the cleaning device.

[0037] Based on the above problems, as shown in FIG. 1 and FIG. 2 , the water tank 20 has a water storage chamber 20a and an air extraction passage 20b. The water storage chamber 20a is used to store sewage, and the air extraction passage 20b has a passage air inlet 20c connected to the water storage chamber 20a and a passage air outlet 20d connected to the external atmosphere. The water tank 20 includes two long sides arranged oppositely, and the top of the water tank 20 is distributed along the long side direction (i.e., the X direction in FIG. 2 ) with a first area and a second area arranged oppositely, and a middle area between the first area and the second area, and the passage air inlet 20c is located in the middle area.

[0038] In this way, when the cleaning device rotates, crosses obstacles, stops suddenly or collides, causing the sewage in the water storage chamber 20a to shake, because the top of the water tank 20 where the flow channel air inlet 20c is located is at a higher position, and the water level below the middle area changes less, it can effectively prevent the sewage from entering the flow channel air inlet 20c located in the middle area during the shaking process, thereby preventing the sewage from entering the air extraction channel 20b and causing damage to the air pump, effectively reducing the failure rate of the cleaning device and extending the service life of the cleaning device. Moreover, compared with setting up an additional drive mechanism, the setting of the air extraction channel 20b will not significantly increase the production cost of the cleaning device.

[0039] Furthermore, the water tank 20 includes two short sides arranged opposite to each other, the middle area includes a first sub-area and a second sub-area respectively adjacent to the two short sides, and a central area located between the first sub-area and the second sub-area, and the flow channel air inlet 20c is located in the central area, thereby further preventing the sewage shaking in the short side direction (i.e., the Y direction in Figure 2) from entering the exhaust air channel 20b.

[0040] It can be understood that the sizes of the first area, the second area and the central area, and the sizes of the first sub-area, the second sub-area and the central area can be set as needed, so that the position setting of the flow channel air inlet 20c meets different requirements.

[0041] It should be noted that since the length of the water tank 20 in the long side direction (left-right dimension) is much larger than its width in the short side direction (front-back dimension), under the condition of equal kinetic energy, the mass of water that needs to be lifted when the water tank 20 shakes left-right is smaller, so the height of the water when shaking is higher, and the mass of water that needs to be lifted when shaking back-and-forth is larger, so the height of the water when shaking is lower, that is, the waves in the left-right direction are more violent than the waves in the front-and-back direction.

[0042] Therefore, in one embodiment, the flow channel air inlet 20c is located in the center of the sewage tank 20 in the long side direction of the water tank 20, and the distance between the flow channel air inlet 20c and the long sides on both sides is equal, and the flow channel air inlet 20c can be biased towards one short side in the front-to-back direction of the water tank 20 to meet other layout requirements. In some other embodiments, the flow channel air inlet 20c can also be located in the center of the sewage tank 20 in the front-to-back direction of the water tank 20, that is, the distance between the flow channel air inlet 20c and the short sides on both sides is equal, so as to achieve a better water ingress prevention effect.

[0043] As shown in Figures 2 and 3, in some embodiments, the water tank 20 is a hollow shell-like structure, including a box body 21 and a box cover 22, the box cover 22 can be opened and closed to be matched with one end of the box body 21, the box body 21 and the box cover 22 together form a water storage chamber 20a, the box cover 22 is located at the top of the water tank 20, the air exhaust channel 20b is formed on the side of the box cover 22 facing the water storage chamber 20a and is located at the top of the water tank 20, and the first area, the second area and the middle area are formed on the side of the box cover 22 facing the water storage chamber 20a.

[0044] Furthermore, a guide rib 221 is convexly provided on one side of the box cover 22 facing the water storage chamber 20a. The guide rib 221 is a closed annular structure. The height of the guide rib 221 protruding from the box cover 22 is less than 3 mm to keep it as far away from the water surface as possible. The water tank 20 also includes a guide member 23. The guide member 23 can be fixedly connected to the box cover 22 by means of a snap connection, a screw connection or ultrasonic welding. The guide member 23 covers the guide rib 221 to form a suction air channel 20b together with the guide rib 221. Two notches are provided at one end of the guide rib 221 located in the first area. The two notches are arranged opposite to each other in the short side direction of the water tank 20, thereby forming two flow channel air inlets 20c. A connecting hole is provided through one end of the guide member 23 close to the edge of the box cover 22 to form a flow channel air outlet 20d.

[0045] As a preferred embodiment, the guide rib 221 extends straightly from the first area along the long side direction of the water tank 20 to one side edge of the tank cover 22, and the guide member 23 is in a long strip shape to match the shape of the guide rib 221, thereby forming an air extraction passage 20b extending from the middle area to the edge of the tank cover 22 along the long side direction of the water tank 20. It can be understood that the shape of the air extraction passage 20b is not limited thereto, and can be set as needed to meet different requirements.

[0046] Please refer to FIG. 2 to FIG. 4 . In some embodiments, the housing 21 has a housing exhaust pipe 212, and a housing exhaust passage 212a is formed in the housing exhaust pipe 212. When the housing cover 22 is closed on the housing 21, the housing exhaust passage 212a connects the exhaust flow with the external atmosphere, so that the air in the sewage tank 20 can enter the air pump through the exhaust passage 20b and the housing exhaust passage 212a in sequence. Specifically, in one embodiment, since the exhaust passage 20b extends from the middle area of ​​the housing cover 22 along the long side direction of the water tank 20 to the edge of the housing cover 22, the housing exhaust pipe 212 is also located at one end of the housing 21 in the long side direction to connect with the flow passage air outlet 20d of the exhaust passage 20b.

[0047] Furthermore, the water tank 20 also includes a first seal 24, which is a hollow cylindrical structure and is formed of elastically deformable materials such as rubber. One end of the first seal 24 is sleeved on one end of the box body exhaust pipe 212, and the other end of the first seal 24 is interference fit against the guide member 23 and surrounds the flow channel air outlet 20d, thereby preventing gas from leaking from the connection between the flow channel air outlet 20d and the box body exhaust channel 212a.

[0048] In some embodiments, the water tank 20 also includes a second seal 25, which is an annular structure and is formed of a material that can undergo elastic deformation, such as rubber. The second seal 25 is installed on the edge of one of the box cover 22 and the box body 21, and is interference fit with the edge of the other of the box body 21 and the box cover 22 to keep the water storage chamber 20a in a sealed state.

[0049] As a preferred embodiment, the interference fit between the box body 21 and the box cover 22 is much greater than the interference fit between the first sealing member 24 and the flow guide member 23, thereby preventing the box cover 22 from being pushed open by the box body exhaust pipe 212 after being closed on the box body 21, thereby ensuring the sealing of the water storage chamber 20a.

[0050] In some embodiments, the box 21 is further provided with a box sewage inlet pipe 214, and a box sewage inlet channel 214a is formed in the box sewage inlet pipe 214. The box sewage inlet channel 214a connects the water storage chamber 20a with the external atmosphere, so the sewage collecting tank can be connected with the water storage chamber 20a through the box sewage inlet channel 214a, and the sewage in the sewage collecting tank can enter the water storage chamber 20a through the box sewage inlet channel 214a. In one specific embodiment, the box sewage inlet pipe 214 is located on one side of the box exhaust pipe 212 in the short side direction of the water tank 20.

[0051] In some embodiments, the water tank 20 further includes two detection members 26, which are disposed at the top of the water tank 20, and the two detection members 26 are staggered in the long side direction and the short side direction of the water tank 20 for water full detection. When the water in the water storage chamber 20a simultaneously immerses the two detection members 26, it indicates that the water storage chamber 20a is in a water full state. Since the two detection members 26 are staggered in the long side direction and the short side direction, it is possible to prevent the sewage in the surge state from simultaneously immersing the two detection members 26 and causing a false alarm. It is understandable that the positional relationship of the detection members 26 is not limited to this, and can be set as needed to meet different detection requirements.

[0052] Please continue to refer to Figures 2 to 5. The base 40 and the water tank 20 are matched with each other on the inclined surface. A third sealing member 41 is provided between the contact surface of the base 40 and the water tank 20 to seal the gap between the two. The base 40 is provided with a base air extraction channel 20a and a base sewage inlet channel 40c. The air pump is connected to the box air extraction channel 212a through the base air extraction channel 20a, and the sewage collection tank is connected to the box sewage inlet channel 214a through the base sewage inlet channel 40c.

[0053] In this way, when the air pump is pumping sewage, the air flow flows from the sewage trough through the base sewage inlet channel 40c, the box sewage inlet channel 214a, the water storage chamber 20a, the flow channel air inlet port 20c, the flow channel air outlet port 20d, the box exhaust channel 212a, and the base exhaust channel 20a into the air pump, and the sewage in the sewage trough flows through the base sewage inlet channel 40c and the box sewage inlet channel 214a in sequence and is stored in the water storage chamber 20a.

[0054] In some embodiments, the base suction channel 20a has a filter section 40b, and a filter element 43 is disposed in the filter section 40b. The filter element 43 is formed of a porous material with an adsorption function such as filter cotton. In this way, when the user flips the cleaning device and puts the cleaning device in an inverted state, the sewage entering the base suction channel 20a will be absorbed by the filter element 43, thereby further preventing the sewage from entering the air pump. It can be understood that the inner diameter of the filter section 40b can be much larger than the inner diameter of other parts of the base suction channel 20a, thereby providing a larger installation space for the filter element 43.

[0055] Furthermore, in some embodiments, the base 40 is provided with a mounting cover 45, which is detachably mounted on the base 40 and communicated with the filter section 40b, so that the filter element 43 can be replaced by removing the mounting cover 45, thereby ensuring a good filtering effect.

[0056] The above-mentioned water tank 20 and the cleaning equipment equipped with the same, by setting the flow inlet 20c of the exhaust flow channel 20b in the middle area of ​​the top of the water tank 20 and away from the side wall of the water storage chamber 20a, can effectively prevent the sewage shaking in the water storage chamber 20a from entering the exhaust flow channel 20b when the cleaning equipment is rotating, overcoming obstacles, stopping suddenly or colliding, thereby effectively preventing the sewage from entering the air pump without significantly increasing the manufacturing cost, thereby effectively extending the service life of the cleaning equipment.

[0057] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0058] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A water tank, characterized in that: The water tank comprises a water storage chamber (20a) and an air extraction passage (20b); the air extraction passage (20b) comprises an air passage air inlet (20c) connected to the water storage chamber (20a) and an air passage air outlet (20d) connected to the external atmosphere; The water tank comprises two long sides arranged opposite to each other, and the top of the water tank is provided with a first area and a second area arranged opposite to each other, and a middle area located between the first area and the second area, along the direction of the long sides; the flow channel air inlet (20c) is located in the middle area.

2. The water tank according to claim 1, characterized in that: The water tank comprises two short sides arranged opposite to each other, the middle area comprises a first sub-area and a second sub-area respectively adjacent to the two short sides, and a central area located between the first sub-area and the second sub-area; the flow channel air inlet (20c) is located in the central area.

3. The water tank according to claim 2, characterized in that: The water tank comprises a tank body (21) and a tank cover (22); the tank cover (22) is openably connected to one end of the tank body (21); the tank body (21) and the tank cover (22) together form the water storage chamber (20a); the tank cover (22) is located at the top of the water tank; and the air extraction passage (20b) is formed on a side of the tank cover (22) facing the water storage chamber (20a).

4. The water tank according to claim 3, characterized in that A flow guide rib (221) is protrudingly provided on one side of the box cover (22) facing the water storage chamber (20a); the water box further comprises a flow guide member (23); the flow guide member (23) covers the flow guide rib (221) so as to enclose the flow suction channel (20b) together with the flow guide rib (221); a notch is provided at one end of the flow guide rib (221) so as to form the flow channel air inlet (20c); and the flow channel air outlet (20d) is formed on the flow guide member (23).

5. The water tank according to claim 4, characterized in that: The box body (21) has a box body exhaust pipe (212), a box body exhaust channel (212a) is formed in the box body exhaust pipe (212), and when the box cover (22) is closed on the box body (21), the box body exhaust channel (212a) connects the flow channel air outlet (20d) with the external atmosphere.

6. The water tank according to claim 5, characterized in that The water tank further comprises a first sealing member (24), one end of the first sealing member (24) being sleeved on the box body exhaust pipe (212), and the other end of the first sealing member (24) being interference-held against the flow guide member (23) and surrounding the flow channel air outlet (20d).

7. The water tank according to claim 3, characterized in that: The water tank further comprises a second sealing member (25), the second sealing member (25) being mounted on one of the tank cover (22) and the tank body (21), and being interference-fitted with the other of the tank body (21) and the tank cover (22).

8. The water tank according to claim 3, characterized in that: The box body (21) is further provided with a box body sewage inlet pipe (214), a box body sewage inlet channel (214a) is formed in the box body sewage inlet pipe (214), and the box body sewage inlet channel (214a) connects the water storage chamber (20a) with the external atmosphere.

9. The water tank according to claim 2, characterized in that: The water tank further comprises two detection members (26), the two detection members (26) being arranged on the top of the water tank, and the two detection members (26) being staggered in the long side direction and the short side direction of the water tank.

10. A cleaning device, characterized in that: The cleaning device comprises a water tank as claimed in any one of claims 1 to 9, the cleaning device further comprising a base (40), the water tank being mounted on the base (40), the base (40) being provided with a base exhaust channel (20a) connected to the exhaust channel (20b).

11. The cleaning device according to claim 10, characterized in that The base air extraction channel (20a) comprises a filter section (40b), and a filter element (43) is arranged in the filter section (40b).

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