CN111265159A

CN111265159A - Water tank and cleaning equipment

Info

Publication number: CN111265159A
Application number: CN202010211645.5A
Authority: CN
Inventors: 冯勇兵; 尤全
Original assignee: Zhuichuang Technology Suzhou Co Ltd
Current assignee: Zhuichuang Technology Suzhou Co Ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-06-12

Abstract

The application relates to a water tank and cleaning equipment, wherein a water storage space is arranged in the water tank, the water tank also comprises at least one drain hole and an exhaust assembly, wherein the drain hole is communicated with the water storage space; the exhaust assembly comprises a through hole communicated with the atmosphere, at least one air inlet hole communicated with the water storage space and an air inlet channel used for communicating the air inlet hole and the through hole, wherein the diameter of the through hole is larger than that of the air inlet hole. Through setting up exhaust assembly in the water tank, and exhaust assembly includes the inlet port that sets up with water storage space intercommunication, has avoided when water tank or cleaning equipment when keeping flat or putting upside down that the inlet port is covered the emergence of jam problem by the dust or the particulate matter of free fall, simple structure and convenient and fast.

Description

Water tank and cleaning equipment

Technical Field

The invention relates to a water tank and cleaning equipment, and belongs to the technical field of cleaning tools.

Background

The composite dust collector in the prior art generally comprises a floor brush and a flat mop, and in order to enable the flat mop to automatically discharge water, an air inlet hole which enables the air pressure inside and outside the flat mop to be equal is formed in the flat mop. However, the air inlet of a common flat mop is directly arranged on the shell of the flat mop, and after the flat mop is used and is placed right or upside down according to the use position, the air hole arranged on the flat mop is easily blocked after being covered by free falling dust or particles, so that the ventilation function is lost.

Disclosure of Invention

The invention aims to provide a water tank and a cleaning device, wherein an exhaust assembly with an air inlet communicated with a water storage space is arranged in the water tank, so that the phenomenon that the air inlet is blocked by dust is avoided, and convenience and rapidness are realized.

In order to achieve the purpose, the invention provides the following technical scheme: a water tank is provided with a water storage space, and further comprises at least one drain hole and an exhaust assembly, wherein the drain hole is communicated with the water storage space; the exhaust assembly comprises a through hole communicated with the atmosphere, at least one air inlet hole communicated with the water storage space and an air inlet channel used for communicating the air inlet hole and the through hole, wherein the diameter of the through hole is larger than that of the air inlet hole.

Further, the exhaust assembly is disposed within the water tank.

Further, the length of the intake passage in the axial direction thereof is greater than a preset length.

Further, the air inlet channel is basically vertically arranged, the through hole is communicated with the lower end of the air inlet channel, and the air inlet hole is communicated with the upper end of the air inlet channel.

Further, the air inlet channel comprises a side wall and a bottom wall, and the air inlet holes are formed in the bottom wall and/or the side wall.

Further, the air inlet channel comprises a vertical section and a horizontal section, and the air inlet is arranged on the horizontal section and/or the vertical section.

Further, the water tank further includes a ball to close or open the air intake passage.

Further, in the height direction of the water tank, the air inlet channel is provided with a concave surface, and the ball is positioned on the concave surface to close the air inlet channel.

Further, the diameter range of the air inlet hole is 0.3-2 mm.

The invention also provides cleaning equipment comprising the water tank.

The invention has the beneficial effects that: the exhaust assembly is arranged and comprises the air inlet hole communicated with the water storage space, so that the problem that the air inlet hole is covered and blocked by dust or particles of free falling bodies when the water tank or the cleaning equipment is horizontally placed or inversely placed is avoided, and the structure is simple, convenient and quick;

by arranging the ball body for closing or opening the air inlet channel, when the exhaust assembly is not acted by external force, the ball body closes the air inlet channel so that water in the water tank cannot be discharged out of the water tank; when the exhaust assembly receives the exogenic action, the spheroid is owing to rock in order to open air intake channel to make the automatic outside seepage of ability of water in the water tank, it is simple direct.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of a floor brush and a flat mop according to a first embodiment of the present invention.

Fig. 2 is a schematic view of the floor brush and the flat mop in fig. 1 in another direction.

Fig. 3 is a partial structure diagram of the floor brush and the flat mop in fig. 1.

Fig. 4 is a schematic structural view of the flat mop cover and the connecting member in fig. 1.

Fig. 5 is a partial structure diagram of the floor brush and the flat mop of fig. 1 without an adjusting button.

Fig. 6 is a schematic view of a portion of the floor brush and flat mop of fig. 1 without the upper cover.

Fig. 7 is a schematic structural view of the flat panel of fig. 1 without the upper cover.

Fig. 8 is a schematic structural view of the adjustment button of fig. 1.

Fig. 9 is a schematic structural view of the drainage member of fig. 1.

FIG. 10 is a cross-sectional view of the intake ports and intake passages of FIG. 1.

Fig. 11 is a schematic cross-sectional view of the tank of fig. 1.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the mechanism or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Referring to fig. 1, the water tank of the present invention may be applied to a sweeping robot, a vacuum cleaner or other cleaning devices, in this embodiment, the cleaning device is a composite vacuum cleaner, and indeed, in other embodiments, the cleaning device may be other cleaning devices, which is not specifically limited herein, depending on the actual situation. The composite dust collector comprises a floor brush, a flat plate mop connected with the floor brush and a water tank, wherein the water tank is connected with the flat plate mop.

Referring to fig. 2, the floor brush 1 includes a bottom shell 11 and an upper shell 12 connected to each other, a dust suction passage (not shown) and a suction opening 13 communicating with the dust suction passage are formed in the bottom shell 11, and dust is sucked into the dust suction passage from the suction opening 13. A rolling brush 14 is rotatably arranged in the bottom shell 11, and rollers 15 for running on the ground are arranged at the bottom of the bottom shell 11. A connection pipe (not shown) is rotatably provided at the rear side of the upper casing 12, the connection pipe is communicated with a dust suction passage, and dust in the dust suction passage enters a dust storage of the cleaner through the connection pipe. The dust suction passage having a funnel shape has opposite large and small ends, the large end communicating with the suction port 13 and the small end communicating with the connection pipe. The connection between the connecting pipe and the dust collection channel can be connected in a splicing or clamping manner, and a sealing ring is arranged at the joint.

The upper shell 12 is provided with a first sleeve 16, the first sleeve 16 and the upper shell 12 are rotatably connected together, a second sleeve 17 is fixedly connected to one end of the first sleeve 16 far away from the upper shell 12, and the second sleeve 17 and the pipe joint 18 are detachably connected together through a locking assembly 19 at one end of the second sleeve 17 far away from the first sleeve 16. The other end of the connecting pipe is transmitted through the first sleeve, the second sleeve and the connecting pipe joint, the first sleeve, the second sleeve and the connecting pipe joint can be connected in an inserting or clamping mode, and a sealing ring is arranged at the joint. Since the first sleeve 16 is rotatable relative to the upper casing 12, the end of the connecting tube fixedly connected to the adapter 18 can be rotated back and forth relative to the suction passage. When the dust collector floor brush 1 is pushed and pulled back and forth, the connecting pipe rotates relative to the floor brush 1, so that the dust collector floor brush 1 is always attached to the ground.

The locking assembly 19 includes a button 191, the button 191 is received between the second sleeve 17 and the pipe joint 18, a spring (not shown) is disposed between the button 191 and the pipe joint 18, and the spring abuts against the button 191 to make the button 191 extend into the button hole 171 of the second sleeve 17. When the button 191 is placed in the button hole 171, the pipe joint 18 and the second sleeve 17 are relatively locked; when it is desired to remove the pipe joint 18, the pipe joint 18 can be easily and quickly pulled out from the connection pipe by simply pressing the button 191 to disengage the button 191 from the button hole 171.

Bottom shell 11 bottom front side is provided with two

gyro wheels

15, and 11 bottom rear side intermediate positions of bottom shell extend backward has installation department 10, installs a gyro wheel 15 on the installation department 10, and the three triangular distribution that is for scrubbing brush 1 driving process is more stable. Meanwhile, the connecting pipe is positioned between the front wheel and the rear wheel and is positioned in the center of the triangle. Therefore, the problem that the front side of the floor brush 1 is tilted in the use process of the dust collector can be prevented, and the floor brush 1 is always kept in a fit state with the ground.

The front side of the upper shell 12 is provided with a transparent window 121, and the transparent window 121 can be detached from the upper shell 12. Can observe inside dust or not piling up or block up and have on the round brush 14 silk such as winding hair through perspective window 121 at any time, if take place to block up or the winding silk on the round brush 14, can take off perspective window 121 and clear up, it is convenient simple.

The handle is connected with one end of the pipe joint 18, the floor brush 1 is moved on an object needing cleaning through the handle, and dust can be sucked into the dust collector when the suction port 13 of the floor brush 1 moves on the object, wherein the object can be a floor, a carpet and other ground needing cleaning.

The flat mop 2 is disposed at one side of the floor brush 1, and the flat mop is disposed at the rear side, i.e. the tail, of the floor brush, in the direction indicated by the arrow b in fig. 1, please refer to fig. 3, an included angle a is formed between the flat mop 2 and the floor brush 1, specifically, the floor brush 1 has a first bottom surface directly contacting with an object, in this embodiment, the first bottom surface is a surface formed by common tangents of the rolling brush 14 and the roller 15, and the first bottom surface is a surface formed by common tangents of the three rollers 15. The flat mop 2 is provided with a mop cloth (not shown), the flat mop 2 is detachably connected with the mop cloth to facilitate the replacement of the mop cloth, the flat mop 2 is provided with a second bottom surface for installing the mop cloth, an included angle a is formed between the first bottom surface and the second bottom surface, and the second base surface is inclined relative to the first base surface toward the target object, the included angle a ranges from 0.5 to 25, the included angle a can be any value thereof, and further, the angle is preferably in the range of 1 to 10 deg., and the angle a is formed such that when the floor brush 1 and the flat mop 2 installed at the rear of the floor brush 1 are brought into contact with an object to be cleaned, the mop on the flat mop 2 can be fully contacted with and completely attached to a target object, so that the problems that enough downward pressure cannot be provided for the flat mop 2 and the rear end of the mop cloth cannot be contacted with the ground are avoided, and the problem of poor cleaning effect is solved. While dust is absorbed, the mop cloth on the flat mop 2 can clean the floor for the second time, thereby saving the time for cleaning the floor and improving the efficiency.

Referring to fig. 4, 5 and 6, in the present embodiment, the flat mop 2 includes an upper cover 21, a lower cover 22 and a connecting member 23 for connecting the upper cover 21 and the lower cover 22. Referring to fig. 5, the connecting member 23 is disposed at the middle position of the upper cover 21, and the connecting member 23 includes a groove 231 connected to the upper cover 21 and disposed obliquely, and a protrusion (not shown) connected to the lower cover 22 and engaged with the groove 231. The floor brush 1 and the flat mop 2 are detachably fixed through a magnetic assembly, and the magnetic assembly comprises a first magnetic part (not shown) arranged on the floor brush 1 and a second magnetic part (not shown) arranged on the flat mop 2. Specifically, first magnetic member sets up on installation department 10, and the second magnetic member sets up on connecting piece 23, and when the dull and stereotyped connecting piece 23 of dragging 2 contacted the installation department 10 of scrubbing brush 1, drag 2 with the dull and stereotyped scrubbing brush 1 together fixed through the magnetic attraction of first magnetic member and second magnetic member, admittedly, can drag 2 with the scrubbing brush 1 separation with the dull and stereotyped through dragging 2 to exert the pulling force of keeping away from scrubbing brush 1 to the dull and stereotyped.

The bottom surface of the groove 231 is obliquely arranged relative to the upper surface of the upper cover 21, the surface of the bottom surface of the groove 231 and the surface of the upper cover 21 form an included angle a, namely, the bottom surface of the groove 231 and the second bottom surface form an included angle a, and the included angle a ranges from 0.5 degrees to 25 degrees, so that when the floor brush 1 is connected with the flat mop 2, the bottom surface of the groove 231 is parallel to the first bottom surface, the first bottom surface and the second bottom surface form an included angle a, and therefore the cleaning effect of the flat mop 2 is improved.

Referring to fig. 2, 4 and 7, the upper surface of the upper cover 21 of the flat mop 2 is parallel to the lower surface of the lower cover 22, the second bottom surface is the lower surface of the lower cover 22, and the water tank 3 is formed between the upper cover 21 and the lower cover 22. The water tank 3 is of a rectangular parallelepiped-like structure and has a top, a side, and a bottom, and accordingly, the top is an upper surface of the upper cover 21, the bottom is a lower surface of the lower cover 22, and the side is located between the upper surface of the upper cover 21 and the lower surface of the lower cover 22. The water tank 3 is provided with a water storage space therein, the water tank 3 further includes at least one drain hole 31 communicated with the water storage space, and an exhaust assembly 30 disposed in the water tank 3, wherein the interior of the water tank 3 is an interior space formed by the upper cover 21 and the lower cover 22, and is not limited to the water storage space. The drainage holes 31 are provided on the lower cover 22 to be directly connected to the mop, and in this embodiment, the number of the drainage holes 31 is two, and it is true that the number of the drainage holes 31 may be set according to actual needs and is not particularly limited herein. The water or liquid in the water tank 3 is permeated to the mop disposed at the bottom of the flat mop 2 through the drain hole 31, thereby automatically wetting the mop. The water storage space may also store cleaning solution, etc., and is not specifically limited herein, depending on the actual situation. When the flat mop 2 works, the water tank 3 automatically seeps water into the mop cloth arranged at the bottom of the flat mop 2, so that the mop cloth can be automatically wetted without detaching the mop cloth to be wetted from the flat mop 2, and the use is convenient and quick.

Referring to fig. 2, 9 and 10, the exhaust assembly 30 includes a through hole 33 communicating with the atmosphere and at least one air inlet hole 32 communicating with the water storage space. In the present embodiment, the diameter of the through hole 33 is much larger than that of the intake hole 32. As mentioned above, the through hole 33 is communicated with the atmosphere, and the water tank 3 is provided with a small hole for communicating the through hole 33 with the atmosphere, or the through hole 33 is communicated with one of the exhaust holes 31, which is not limited herein. The exhaust assembly 30 further includes an intake passage 331 for communicating the intake hole 32 with the through hole 33, and the length of the exhaust passage 331 in the axial direction thereof is greater than a predetermined length, specifically, a predetermined distance is at least greater than 3mm, that is, at least exceeds the wall thickness of the water tank 3. Wherein the air intake passage 331 is substantially vertically arranged, the through hole 33 communicates with a lower end of the air intake passage 331, and the air intake hole 32 communicates with an upper end of the air intake passage 331. It is needless to say that the air inlet path 331 may be disposed at other angles, which are not limited herein, according to the actual situation.

In the present embodiment, the air inlet passage 331 is formed in a groove shape, and the air inlet hole 32 is provided on the air inlet passage 331. The air inlet channel 331 comprises a side wall 332 and a bottom wall 333, the side wall 332 is arranged on the bottom wall 333 in a surrounding mode, and the air inlet holes 32 are arranged on the bottom wall 333 and/or the side wall 332; alternatively, the air inlet path 331 includes a vertical section 332 and a horizontal section 333, and the air inlet holes 32 are disposed on the horizontal section 333 and/or the vertical section 332, which is not particularly limited herein, depending on the actual situation. The size of at least one air intake hole 32 ranges from 0.3 mm to 2 mm. When the number of the intake holes 32 is at least two, the sizes of the at least two intake holes 32 may be equal or may not be equal. In this embodiment, the number of the air inlet holes 32 is two, and the air inlet holes are oppositely disposed on two sides of the horizontal section 331.

Referring to fig. 10 and 11, the water tank 3 further includes a ball 37 for closing or opening the through hole 33, in the height direction of the water tank 3, the top end of the through hole 33 has a concave surface, and the ball 37 is located on the concave surface to close the through hole. As described above, when the hybrid cleaner is not used, the ball 37 is positioned on the concave surface to close the through hole 33, so that the water storage space is not communicated with the atmosphere, thereby preventing water from leaking out of the water tank 3 to affect use; when the composite vacuum cleaner is used, the ball 37 moves under the action of external force to open the through hole 33, so that the through hole 33 is communicated with the atmosphere, and water in the water storage space is discharged out of the water tank 3 under the action of pressure difference, so that the mop is wet and comprehensive, and the cleaning efficiency is improved.

The water tank 3 further comprises an adjusting button 34 for adjusting the water output of the water tank 3, wherein the adjusting button 34 is disposed above the air inlet hole 32 and can move relative to the air inlet hole 32 to open or close the air inlet hole 32, so as to achieve the purpose of adjusting the water output of the water tank 3. Referring to fig. 7, one end of the adjustment button 34 near the intake hole 32 is disposed in the intake passage 331. A mounting hole 36 is further provided on the top or side of the water tank 3, and one end of the adjustment button 34 passes through the mounting hole 36 and contacts the air intake hole 32. In this embodiment, the mounting hole 36 is disposed at the top of the water tank 3, the mounting hole 36 is a rectangular parallelepiped structure and traverses the upper cover 21, and the upper surface of the upper cover 21 has an inwardly concave recess 361 around the periphery of the mounting hole 36. A sealing member 35 is further provided between the adjustment button 34 and the water tank 3 in order to prevent liquid from leaking from the inside of the water tank 3 to the outside of the water tank 3.

Referring to fig. 8, the structure of the adjustment button 34 is similar to an i-shape, the adjustment button 34 includes a button body 341, a shielding member 342 connected to the button body 341, and a connecting portion 343 connected to the button body 341, the shielding member 342 is disposed through the sealing member 35 and is used for opening or closing the air inlet hole 32, the connecting portion 343 is fixedly connected to the sealing member 35 and is disposed on at least one side of the sealing member 35, in this embodiment, the connecting portion 343 extends downward from a middle position of the button body 341, the sealing member 35 is disposed on two sides of the connecting portion 343, the button body 341 and the sealing member 35 of the adjustment button 34 are disposed in the concave portion 361 and can slide in the concave portion 361, the connecting portion 343 is located in the mounting hole 36 and can relatively move in the mounting hole 36, and the sealing member 35 is disposed between the adjustment button 34 and the concave portion 361, so as to prevent the liquid. The upper surface of the sealing member 35 is fixed to the lower surface of the adjusting button 34, the material of the sealing member 35 is a soft foam material, and indeed, the material of the sealing member 35 may also be other materials capable of preventing liquid leakage, and is not limited specifically herein. The sealing member 35 has a patch 351 slidable with respect to the tank 3, specifically, a patch 351 (not shown) slidable on the surface of the recess 361, and the patch 351 is fixed to the lower surface of the sealing member 35, and the surface friction of the patch 351 is small, so that the adjustment button 34 has a small resistance to sliding with respect to the recess 361, and is easy to operate.

Referring to fig. 4, 8 and 10, the adjusting button 34 is disposed above the air inlet hole 32 and can move relative to the air inlet hole 32 to open or close the air inlet hole 32, so as to adjust the size of the air inlet hole 32 communicating with the air inlet channel 33, thereby adjusting the water yield. Specifically, the blocking member 342 is disposed in the air intake passage 331 and is used to open or close the air intake holes 32, and the sliding of the blocking member 342 does not close the opening of the vertical section 332 of the air intake passage 33 in the upper wall. In this embodiment, the two air inlets 32 have different sizes, and when the adjusting button 34 slides to one side in the air inlet channel 331, the shielding member 342 can seal one air inlet 32 and simultaneously open the other air inlet 32, the opened air inlet 32 is communicated with the vertical section 332 of the air inlet channel 33 through the air inlet channel 331, so that the inside of the water tank 3 is communicated with the outside, air enters the inside of the water tank 3 through the air inlet channel 33 and the air inlet 32, so that the pressure inside the water tank 3 is kept balanced, at this time, the liquid in the water tank is discharged through the water outlet hole 31, admittedly, when the shielding member 342 seals all the air inlets 32, the liquid in the water tank 3 cannot flow out. When the adjustment button 34 is slid due to the difference in size of the two air intake holes 32, the opened air intake holes 32 are changed, thereby adjusting the amount of intake air, and thus the amount of discharge water of the flat mop 2. Indeed, when the number of the air intake holes 32 is provided in plurality, the plurality of air intake holes 32 are different in size, and the amount of intake air from the air intake holes 32 is adjusted by making the opened air intake holes 32 different by sliding the adjustment button 34, whereby a plurality of water control amount stages can be designed. In other embodiments, the amount of air taken into the air inlet holes 32 can be adjusted by sliding the adjustment button 34 to change the number of the air inlet holes 32 that are opened, in which case the sizes of the air inlet holes 32 may not be equal or may not be the same.

The water tank according to the second embodiment of the present invention is substantially the same as the water tank according to the first embodiment, except that the flat mop includes an upper cover and a lower cover detachably coupled to the upper cover, the upper cover has a first inclined surface, the lower cover has a second inclined surface cooperating with the first inclined surface, the first inclined surface and the second inclined surface are parallel, the second inclined surface is a second bottom surface, and when the flat mop is fixed to the rear portion of the floor brush, the second bottom surface is inclined with respect to the first bottom surface toward the target object at an angle of 0.5 ° to 25 °, the angle of inclination may be any value thereof, and further, the angle is preferably in a range of 1 ° to 10 °.

The water tank of the third embodiment of the present invention is substantially the same as the water tank of the first embodiment except that the flat mop includes an upper cover and a lower cover detachably connected to the upper cover, the bottom of the flat mop is uneven in thickness, and the thickness of the end close to the floor brush is smaller than that of the end far from the floor brush, so that the second bottom surface is inclined with respect to the first bottom surface toward the target at an angle of 0.5 ° to 25 °, which may be any value, and further, which is preferably in the range of 1 ° to 10 °.

In conclusion, an included angle is formed between the flat mop and the floor brush, so that the mop cloth on the flat mop can be fully contacted and completely attached to a target object, the cleaning effect is improved, the floor brush assembly is convenient to use, the dust removal effect is better than that of a single floor brush, the time is saved when the target object is cleaned, and the efficiency is improved;

the water tank is provided with the adjustment button who adjusts the water yield size to satisfy operator's actual demand, and be provided with between adjustment button and the water tank and be used for preventing liquid seepage to the outer sealing member of water tank, avoid water or have the corrosive cleaning solution to corrode skin, improved the security and the maneuverability of water tank.

The exhaust assembly is arranged and comprises the air inlet hole communicated with the water storage space, so that the problem that the air inlet hole is covered and blocked by dust or particles of free falling bodies when the water tank or the cleaning equipment is horizontally placed or inversely placed is avoided, and the structure is simple, convenient and quick;

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A water tank is characterized in that a water storage space is arranged in the water tank, and the water tank further comprises at least one drain hole and an exhaust assembly, wherein the drain hole is communicated with the water storage space; the exhaust assembly comprises a through hole communicated with the atmosphere, at least one air inlet hole communicated with the water storage space and an air inlet channel used for communicating the air inlet hole and the through hole, wherein the diameter of the through hole is larger than that of the air inlet hole.

2. The water tank as recited in claim 1 wherein said vent assembly is disposed within said water tank.

3. The water tank as claimed in claim 1, wherein the length of the air inlet passage in the axial direction thereof is greater than a preset length.

4. The water tank as claimed in claim 1, wherein the air intake passage is substantially vertically disposed, the through hole communicates with a lower end of the air intake passage, and the air intake hole communicates with an upper end of the air intake passage.

5. The water tank as claimed in claim 1, wherein the air intake passage includes a side wall and a bottom wall, and the air intake hole is provided on the bottom wall and/or the side wall.

6. The water tank as claimed in claim 1, wherein the air intake passage comprises a vertical section and a horizontal section, and the air intake hole is provided on the horizontal section and/or the vertical section.

7. The water tank as claimed in claim 1, wherein the water tank further comprises a ball to close or open the air intake passage.

8. The water tank as claimed in claim 7, wherein the air intake passage has a concave surface in a height direction of the water tank, and the ball is seated on the concave surface to close the air intake passage.

9. The water tank as claimed in claim 1, wherein the diameter of the air intake hole ranges from 0.3 to 2 mm.

10. A cleaning device, characterized in that it comprises a tank as claimed in any one of claims 1 to 9.