CN114158985A - Wet-mopping mechanism and cleaning equipment - Google Patents

Abstract

A wet mop mechanism and cleaning device, the wet mop mechanism comprising: mop and for the water tank of mop water supply, the water tank has the air vent, wet mop mechanism still includes the subassembly of ventilating, the subassembly of ventilating includes valve body and valve cap, wherein: the bonnet is provided with a containing cavity, a first end of the bonnet is provided with a first opening communicated with the containing cavity, a second end of the bonnet is connected with the vent hole, and the containing cavity is communicated with the vent hole; the first end of the valve body is located in the containing cavity, and when the water level in the water tank changes to a preset position, the first end of the valve body abuts against and seals the first opening. Above-mentioned scheme, when the water tank takes place the slope, can avoid water to flow out from the air vent.

Description

Wet-mopping mechanism and cleaning equipment

Technical Field

The embodiment of the invention relates to the technical field of cleaning equipment, in particular to a wet mop mechanism and cleaning equipment.

Background

Cleaning equipment such as a handheld dust collector, a wet mop with a handle, an automatic cleaning robot and the like is widely applied to family life, and a water tank is usually arranged on the cleaning equipment with the wet mop function and used for supplying water to a mop so as to wet the mop.

In order to facilitate water to flow out of the water tank, the top of some water tanks is provided with a vent hole to balance air pressure inside and outside the water tank. However, if the water tank is tilted during use of the cleaning apparatus, water is liable to flow out through the vent hole.

Disclosure of Invention

The technical problem solved by the embodiment of the invention is that water is easy to flow out from the vent hole when the water tank is inclined.

To solve the above technical problem, an embodiment of the present invention provides a wet mop mechanism, including: mop and for the water tank of mop water supply, the water tank has the air vent, still includes the subassembly of ventilating, the subassembly of ventilating includes valve body and valve cap, wherein: the bonnet is provided with a containing cavity, a first end of the bonnet is provided with a first opening communicated with the containing cavity, a second end of the bonnet is connected with the vent hole, and the containing cavity is communicated with the vent hole; the first end of the valve body is located in the containing cavity, and when the water level in the water tank changes to a preset position, the first end of the valve body abuts against and seals the first opening.

Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:

the ventilation assembly of the wet dragging mechanism comprises a valve cap and a valve body, wherein the valve cap is provided with an accommodating cavity, a first end of the valve cap is provided with a first opening communicated with the accommodating cavity, a second end of the valve cap is connected with the vent hole, the vent hole is communicated with the accommodating cavity, a first end of the valve body is positioned in the accommodating cavity, and when the water level in the water tank changes to a preset position, the first end of the valve body can abut against and seal the first opening, so that water can be prevented from being removed from the vent hole.

Optionally, the vent is located at a top of the water tank or at a side of the water tank.

Optionally, when the vent hole is located on one side of the water tank, the central axis of the vent hole forms an included angle with the water tank.

Optionally, the second end of the valve cap has a second opening, and the receiving cavity and the vent hole communicate through the second opening.

Optionally, the first end of the valve body has a conical surface, the radius of the cross section of the conical surface is gradually reduced along the direction from the second end to the first end of the valve body, and the conical surface is used for abutting against the edge of the first opening; or the first end of the valve body is provided with a spherical surface which is used for propping against the edge of the first opening.

Optionally, the valve body is hung on the edge of the vent hole; or, the valve cap is provided with a connecting portion, and the valve body is connected to the connecting portion.

Optionally, the second end of the valve body has a hollow structure, and the side wall of the first end of the valve body has a third opening communicated with the hollow structure.

Optionally, the water tank at least comprises a first part, a second part and a third part which are communicated with each other, the third part is located between the first part and the second part, the highest water level of the third part is lower than that of the first part and that of the second part, a water filling port is arranged at the top of the first part, and the second part is provided with the vent hole.

Optionally, the water tank includes: go up box and lower lid, it is used for the water storage to go up the box, be provided with a plurality of apopore on the lid down.

Optionally, a first drainage groove is formed in the lower cover body, and the first drainage groove is formed in one side, facing the upper box body, of the lower cover body, so that water can uniformly flow out of the water outlet holes.

Optionally, the lower cover further includes: set up in first drainage groove outlying second drainage groove, the second drainage groove has a plurality of fourth opening, fourth open-ended position with the position of apopore is corresponding, and the water that overflows in the first drainage groove can reach the apopore simultaneously through the fourth opening to flow out simultaneously from the apopore, thereby can make the mop can be soaked uniformly.

Optionally, the wet mop mechanism further comprises: and the water pumping device is used for pumping water in the water tank into the first drainage groove.

The embodiment of the invention also provides cleaning equipment which comprises any one of the wet mopping mechanisms.

Drawings

FIG. 1 is a schematic structural view of a wet mop mechanism in an embodiment of the present invention;

FIG. 2 is a schematic view of a portion of a wet mop mechanism in accordance with an embodiment of the present invention;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is an enlarged view of a portion of FIG. 4 at P;

FIG. 6 is a sectional view taken along line B-B of FIG. 3;

FIG. 7 is a left side view of FIG. 2;

FIG. 8 is a partial schematic view of another wet mop mechanism in an embodiment of the present invention from a single perspective;

FIG. 9 is an enlarged view of a portion of FIG. 8 at Q;

FIG. 10 is a partial schematic view of another wet mop mechanism in accordance with an embodiment of the invention from another perspective;

FIG. 11 is an enlarged view of a portion of FIG. 10 at K;

FIG. 12 is a partial schematic view of a further wet mop mechanism in accordance with an embodiment of the invention from a single perspective;

FIG. 13 is a partial schematic view of another alternative wet-drag mechanism in accordance with an embodiment of the present invention from another perspective;

FIG. 14 is a partial schematic view of another alternative wet-drag mechanism in accordance with an embodiment of the present invention from another perspective;

fig. 15 is a schematic structural view of a cleaning apparatus in an embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the embodiments of the present invention more comprehensible, specific embodiments accompanied with figures are described in detail below.

Referring to fig. 1, a schematic structural view of a wet mop mechanism in an embodiment of the present invention is shown, fig. 2 is a partial schematic structural view of a wet mop mechanism in an embodiment of the present invention, fig. 3 is a top view of fig. 2, fig. 4 is a sectional view taken along a-a direction of fig. 3, fig. 5 is a partial enlarged view taken along P of fig. 4, fig. 6 is a sectional view taken along B-B direction of fig. 3, and fig. 7 is a left side view of fig. 2. The specific structure of the wet mop mechanism will be described with reference to fig. 1 to 7.

In a particular implementation, the wet mop mechanism 100 may include a mop 40 and a tank 10. The water tank 10 supplies water to the mop 40, and the water tank 10 is provided with a vent hole 11, and the vent hole 11 is used for balancing air pressure inside and outside the water tank 10 so as to facilitate water flowing out of the water tank 10.

The wet mop mechanism 100 may also include a vent assembly 20, and the vent assembly 20 may include a valve body 21 and a bonnet 22. The bonnet 22 has a receiving cavity 223, the bonnet 22 includes a first end 221 and a second end 222, the first end 221 of the bonnet 22 has a first opening 224 communicating with the receiving cavity 223, and the second end 222 of the bonnet 22 is connected to the vent hole 11 such that the receiving cavity 223 communicates with the vent hole 11.

The valve body 21 has a first end 211 and a second end 212, the first end 211 of the valve body 21 is located in the accommodating cavity 223, when the water level in the water tank 10 changes to a preset position, the first end 211 of the valve body 21 abuts against and closes the first opening 224, and when the water tank 10 tilts, the water in the water tank 10 can be prevented from overflowing from the vent hole 11.

In an implementation, the vent 11 may be located at the top 12 of the water tank 10, or may be disposed at one side of the water tank 10. When the vent 11 is located on one side of the tank 10, the vent 11 may be located above one side of the tank 10, i.e., near the top 12 of the tank 10.

In particular implementations, to facilitate assembly of the vent assembly 20, the vent 11 may be a hollow cylindrical structure extending along the tank 10 and away from the tank 10. When the vent hole 11 is provided at one side of the water tank 10, the vent hole 11 extends in a direction away from the one side of the water tank 10. When the through hole is provided at the top 12 of the water tank 10, the vent hole 11 extends in a direction away from the top 12 of the water tank 10.

In the embodiment of the present invention, when the vent hole 11 is a hollow cylindrical structure, and the vent hole 11 is located at one side of the water tank 10, the central axis of the vent hole 11 forms an included angle with the water tank 10.

In some embodiments, the central axis of the ventilation hole 11 is disposed obliquely upward along the direction from the inside of the accommodating chamber 223 to the outside of the accommodating chamber 223, that is, the direction from the inside of the accommodating chamber 223 to the outside of the accommodating chamber 223. When the water tank 10 is horizontally placed, the first opening 224 of the valve cap 22 is opened by the valve body 21 under the action of gravity, and when the water tank 10 is inclined, the valve body 21 moves toward the first end 221 of the valve cap 22 and blocks the first opening 224 under the action of the buoyancy of water. When the water tank 10 is tilted to a certain degree, the valve body 21 can slide directly toward the first end 221 of the valve cap 22 and block the first opening 224 under its own weight.

When the vent hole 11 is disposed on one side of the water tank 10, the second end 212 of the valve body 21 may extend into the water tank 10, or may be located in a cavity of the vent hole 11, and does not extend into the water tank 10, which may be specifically set according to actual requirements.

When the vent hole 11 is disposed at the top 12 of the water tank 10, the second end 212 of the valve body 21 may partially pass through the vent hole 11 and protrude into the water tank 10, so that when the water tank 10 is tilted, the second end 212 of the valve body 21 can at least partially contact water, so that the valve body 21 can move toward the first end 221 of the bonnet 22 under the buoyancy of the water to close the first opening 224. The second end 212 of the valve body 21 may also be supported on the top of the vent hole 11 and not deep into the water tank 10, and when water in the water tank 10 overflows through the vent hole 11, the water may push the valve body 21 to move toward the first opening 224 to close the first opening 224.

In an implementation, the second end 222 of the bonnet 22 has a second opening through which the receiving cavity 223 and the vent 11 communicate.

In an embodiment of the present invention, the second end 222 of the bonnet 22 is sleeved on the vent hole 11 through the second opening.

In order to improve the firmness of the connection between the bonnet 22 and the vent hole 11, in some embodiments, one of the outer wall surface of the vent hole 11 or the inner wall surface of the second end 222 may be provided with a protrusion, and the other of the outer wall surface of the vent hole 11 or the inner wall surface of the second end 222 may be provided with a groove, wherein the protrusion is matched with the groove. In other embodiments, the outer wall surface of the vent hole 11 may be provided with an external thread, the inner wall surface of the second end 222 may be provided with an internal thread adapted to the external thread, and the vent hole 11 is screwed with the second end 222.

In another embodiment of the present invention, the vent hole 11 is sleeved on the second end 222 of the bonnet 22.

In order to improve the firmness of the connection between the vent hole 11 and the bonnet 22, in some embodiments, a protrusion is disposed on one of the inner wall surface of the vent hole 11 and the outer wall surface of the second end 222, and a groove is disposed on the other of the inner wall surface of the vent hole 11 and the outer wall surface of the second end 222, wherein the protrusion is matched with the groove. In other embodiments, the inner wall surface of the ventilation hole 11 may be provided with an internal thread, the outer wall surface of the second end 222 may be provided with an external thread matching with the internal thread, and the ventilation hole 11 is screwed with the second end 222.

As can be seen from the above, the vent assembly 20 of the mop mechanism 100 includes a valve cap 22 and a valve body 21, wherein the valve cap 22 has a receiving cavity 223, a first end 221 of the valve cap 22 has a first opening 224 communicated with the receiving cavity 223, a second end 222 of the valve cap 22 is connected to the vent hole 11, the vent hole 11 is communicated with the receiving cavity 223, a first end 211 of the valve body 21 is located in the receiving cavity 223, and the first end 211 of the valve body 21 can abut against and close the first opening 224 when the water level in the water tank 10 changes to a predetermined position, so that the water can be prevented from being removed from the vent hole 11.

In particular implementations, the structure of the valve body 21 can have various forms, exemplified below:

in an embodiment of the present invention, the first end 211 of the valve body 21 has a conical surface 213, a cross-sectional radius of the conical surface 213 decreases along a direction from the second end 212 to the first end 211 of the valve body 21, and the conical surface 213 is used for abutting against an edge of the first opening 224 to seal the first opening 224.

In another embodiment of the present invention, the first end 211 of the valve body 21 has a spherical surface for abutting against the edge of the first opening 224 to seal the first opening 224.

It is understood that the first end 211 of the valve body 21 may have other configurations, as long as it can abut and seal the first opening 224.

In a particular implementation, the valve body 21 may hang from the edge 111 of the vent 11 such that the first end 211 of the valve body 21 is located within the receiving cavity 223 of the bonnet 22. Alternatively, the bonnet 22 is provided with a connecting portion to which the valve body 21 is connected. The connection portion may be an annular protrusion disposed inside the bonnet 22, and the first end 211 of the valve body 21 has an outer diameter larger than that of the second end 212 of the valve body 21, so that the first end 211 of the valve body 21 is hooked on the annular protrusion.

In a specific implementation, the second end 212 of the valve body 21 has a hollow structure 214, and the sidewall of the first end 211 of the valve body 21 has a third opening communicating with the hollow structure 214. Through the hollow structure 214, the third opening, the accommodating cavity 223 and the first opening 224 at the second end of the valve body 21, the communication between the inside of the water tank 10 and the outside of the water tank 10 can be realized, and further, the balance between the air pressure inside the water tank 10 and the air pressure outside the water tank 10 can be realized.

When the first end 211 of the valve body 21 abuts against the first opening 224, the communication between the first opening 224 and the third opening can be blocked, so that neither air nor water can flow out from the first opening 224 through the third opening.

In practical application, for some U-shaped water tanks 10 or special-shaped water tanks 10 with different heights of the internal space of the water tank 10, a liquid level difference is likely to occur during the water injection process into the water tank 10, so that the space in the water tank 10 cannot be fully utilized. In order to solve the above-mentioned problem of liquid level difference, in the embodiment of the present invention, when the water tank 10 at least includes the first portion 13, the second portion 14 and the third portion 15 which are communicated with each other, and the third portion 15 is located between the first portion 13 and the second portion 14, and the highest water level of the third portion 15 is lower than the highest water level of the first portion 13 and the highest water level of the second portion 14, respectively, a water filling port 16 may be provided at the top of the first portion 13, and the second portion 14 has a vent hole 11, so that when water is filled into the water tank 10 through the water filling port 16, after the water level in the water tank 10 exceeds the highest water level of the third portion 15, the balance between the second portion 14 and the atmospheric pressure outside the water tank 10 may be maintained through the vent hole 11 provided in the second portion 14, thereby enabling the space of the second portion 14 to be fully utilized, that is, the space utilization rate of the water tank 10 may be improved, the water adding frequency of the user is reduced.

In particular implementations, the wet mop mechanism 10 may further include a water addition cap 70, the water addition cap 70 being used to cover the water injection port 16. The water filling cap 70 may be coupled to the water tank 10 and positioned above the water filling port 16.

In specific implementation, the arrangement position of the vent hole 11 is not limited to the illustration in fig. 1 to 10, and the vent hole 11 may be arranged at the highest position of the second portion 14, or the position of the vent hole 11 may be configured according to the arrangement position of the water injection port 16.

In a specific implementation, when the water tank 10 includes a plurality of portions, and the highest water level heights of the plurality of portions are higher than the water level height of the third portion 15, the vent holes 11 may be provided on the plurality of portions higher than the third portion 15, and the vent holes 11 may be respectively provided with the corresponding vent assemblies 20.

Further, the water tank 10 may include an upper tank body 17 and a lower cover body 18. The upper tank 17 is used for storing water, and the vent hole 11 is provided in the upper tank 17. A plurality of outlet holes 31 are provided in the lower cover 18. The mop cloth 40 is attached to the lower cover 18. The water in the upper housing 17 can flow out through the outlet hole 31 of the lower cover 18 and wet the mop cloth 40. The cavity between the upper housing 17 and the lower cover 18 may form a drainage system for draining water to the mop 40, and additional parts for draining may not be required, so that the parts may be saved and the structure of the water tank 10 may be simplified.

In specific implementations, the lower cover 18 is detachably connected to the bottom of the upper case 17, or the lower cover 18 is integrally formed with the upper case 17. Fig. 8 is a partial structure diagram of another wet mop mechanism in the embodiment of the invention at a viewing angle, fig. 9 is a partial enlarged view at Q of fig. 8, fig. 10 is a partial structure diagram of another wet mop mechanism in the embodiment of the invention at another viewing angle, and fig. 11 is a partial enlarged view at K of fig. 10. Referring to fig. 6 to 11, in an implementation, a first drainage groove 32 is formed in the lower cover 18, and the first drainage groove 32 is formed in a side of the lower cover 18 facing the upper box 17.

Go up rivers in the box 17 and flow into first drainage groove 32 to spill over in following first drainage groove 32, the water that spills over from first drainage groove 32 utilizes the horizon to shunt to different apopores 31, can wet mop 40 as far as possible evenly from apopore 31 outflow back with water.

In specific implementation, the lower cover 18 may further have a second drainage groove 33. Second drainage groove 33 set up in first drainage groove 32's periphery, second drainage groove 33 has a plurality of fourth opening 34, the position of fourth opening 34 with the position of apopore 31 is corresponding to the water that overflows first drainage groove 32 leads to apopore 31.

Specifically, after the volume of water in the first conduction gutter 32 reaches the maximum capacity of the first conduction gutter 32, the water can overflow from the first conduction gutter 32 to the second conduction gutter 33 and overflow through the fourth opening 34 to the water outlet hole 31.

In a specific implementation, the number of the fourth openings 34 may be set according to the number of the water outlet holes 31.

In the embodiment of the present invention, the outlet holes 31 may be distributed along the second conduction grooves 33, and the number of the outlet holes 31 corresponds to the number of the fourth openings 34 one-to-one, so that water overflowing from the first conduction grooves 32 can reach the outlet holes 31 at the same time and flow out from the outlet holes 31 at the same time, so that the water flowing out from the respective outlet holes 31 can reach the mop cloth 40 at the same time, so that the mop cloth 40 can be wetted uniformly.

In specific implementation, the shapes of the first drainage groove 32 and the second drainage groove 33 may be set according to the size of the lower cover 18 and the position and arrangement of the water outlet holes 31.

In particular embodiments, second conduction groove 33 also has a reinforcing rib 35, and reinforcing rib 35 can be disposed on the side of second conduction groove 33 away from first conduction groove 32, and the strength of second conduction groove 33 can be improved by the reinforcing rib 35.

In specific implementation, the first drainage groove 32 and/or the second drainage groove 33 are/is located in a cavity between the upper box body 17 and the lower cover body 18, the first drainage groove 32 and/or the second drainage groove 33 can be integrally formed in the lower cover body 18, and the first drainage groove 32 and/or the second drainage groove 33 cooperate with a cavity formed between the upper box body 17 and the lower cover body 18 and a drainage system formed by the water outlet holes 31, so that the structure is simple, and no additional part for drainage needs to be added.

In specific implementation, fig. 12 is a partial structural schematic view of another wet mop mechanism in an embodiment of the present invention, fig. 13 is a partial structural schematic view of another wet mop mechanism in an embodiment of the present invention, and fig. 14 is a partial structural schematic view of another wet mop mechanism in an embodiment of the present invention. With reference to fig. 12-14, the wet mop mechanism 100 may further include: a water pumping device 50, wherein the water pumping device 50 is used for pumping the water in the water tank 10 into the first drainage groove 32.

Specifically, the water pumping device 50 may include a water pump 51, a pipe 52 connected to the water pump 51, and the like. The suction pump 51 may pump water from within the tank 10 and discharge the water to the first drainage channel 32 through the pipe 52.

In a specific implementation, referring to fig. 8 to 14, the water pumping device 50 may further include a water delivery port 53, and the water delivery port 53 is connected to the pipe 52. The water transfer port 53 can be located above the first drainage channel 32 or inside the first drainage channel 32. The suction pump 51 may have an output end 511, the output end 511 may be located outside the upper tank 17, one end of the pipe 52 may be connected to the output end 511, the other end of the pipe 52 may be connected to the water delivery port 53, the pipe 52 may be arranged in the cavity between the upper tank 17 and the lower cover 18 through the outside of the upper tank 17, and the other end of the pipe 52 may be adjacent to the first drainage groove 32.

To prevent the other end of the conduit 52 from moving relative to the first drainage channel 32, the second drainage channel 33 may be provided with a catch through which the conduit 52 passes such that the delivery port 53 is located in the second drainage channel 33, the catch being of a size greater than the delivery port 53 to limit the removal of the delivery port 53 from the second drainage channel 33, the conduit 52 being of a size smaller than the catch to facilitate mounting of the conduit 52 and the delivery port 53 in the catch.

The arrangement of the duct 52 may be set according to the installation position of the suction pump 51, the installation position of the first drainage groove 32, the installation conditions of other components, and the like. The arrangement of the pipes 52 illustrated in fig. 12 to 14 is only for the convenience of understanding, and in practical applications, other arrangements may exist, and are not illustrated here. Fig. 8 to 11 are schematic views of the water pump 51 without the pipeline 52 connected thereto, and fig. 12 to 14 are schematic views of the water pump 51 after the pipeline 52 is connected thereto.

In particular implementations, with continued reference to FIG. 1, the wet mop mechanism 100 may further include a lower water cover 60, the lower water cover 60 being movably coupled to the tank 10. The water discharge cover 60 is positioned above the water pumping device 50, and the water pumping device 50 is driven by pressing the water discharge cover 60, so that the water pumping device 50 pumps water out of the water tank 10 to the first drainage groove 32. The water cover 60 can be stepped on by feet to realize water drainage as required, so that the convenience of water drainage is improved.

In the embodiment of the present invention, the water pump 51 may be a pressing type water pump, and when the water cap 60 is pressed, the water cap 51 may press the water pump 51, so that the water pump 51 may pump water from the upper tank 17 and output the water to the first drainage groove 32 through the pipe 52 and the water delivery port 53. It will be appreciated that, depending on the actual requirements, other types of suction pump 51 may be used, as long as it is sufficient to pump water out of upper tank 17, which is not illustrated here.

Referring to fig. 15, a schematic structural diagram of a cleaning device in the embodiment of the present invention is provided, where the cleaning device 200 may include a wet mop mechanism 100, and the wet mop mechanism 100 may adopt any one of the wet mop mechanisms 100 provided in the embodiments, where specific structures and working principles of the wet mop mechanism 100 may refer to descriptions in the embodiments of the present invention, and are not described herein again.

While specific embodiments have been described above, these embodiments are not intended to limit the scope of the present disclosure, even where only a single embodiment is described with respect to a particular feature. The characteristic examples provided in the present disclosure are intended to be illustrative, not limiting, unless differently stated. In particular implementations, the features of one or more dependent claims may be combined with those of the independent claims as technically feasible according to the actual requirements, and the features from the respective independent claims may be combined in any appropriate manner and not merely by the specific combinations enumerated in the claims.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (13)

1. A wet mop mechanism comprising: mop (40) and a water tank (10) for supplying said mop (40), said water tank (10) having a vent (11), characterized in that it further comprises a vent assembly (20), said vent assembly (20) comprising a valve body (21) and a valve cap (22), wherein:

the bonnet (22) is provided with a containing cavity (223), the first end (221) of the bonnet (22) is provided with a first opening (224) communicated with the containing cavity (223), the second end (222) of the bonnet (22) is connected to the vent hole (11), and the containing cavity (223) is communicated with the vent hole (11); the first end (211) of the valve body (21) is located in the accommodating cavity (223), and when the water level in the water tank (10) changes to a preset position, the first end (211) of the valve body (21) is abutted against and seals the first opening (224).

2. A wet mop mechanism as claimed in claim 1, characterised in that the vent (11) is located at the top (12) of the tank (10) or at a side of the tank (10).

3. A wet mop mechanism as claimed in claim 2, characterised in that the central axis of the vent (11) is angled with respect to the tank (10) when the vent (11) is located to one side of the tank (10).

4. A wet mop mechanism as defined in claim 1, wherein said second end (222) of said bonnet (22) has a second opening through which said receiving cavity (223) and said vent (11) communicate.

5. The wet mop mechanism of claim 1,

the first end (211) of the valve body (21) is provided with a conical surface (213), the section radius of the conical surface (213) is gradually reduced along the direction from the second end (212) to the first end (211) of the valve body (21), and the conical surface (213) is used for abutting against the edge of the first opening (224);

alternatively, the first end (211) of the valve body (21) has a spherical surface for abutting against an edge of the first opening (224).

6. The wet mop mechanism of claim 1,

the valve body (21) is hung on the edge (111) of the vent hole (11);

alternatively, the bonnet (22) is provided with a connecting portion to which the valve body (21) is connected.

7. A wet mop mechanism as claimed in claim 6, characterized in that the second end (212) of the valve body (21) has a hollow structure (214), and the side wall of the first end (211) of the valve body (21) has a third opening communicating with the hollow structure (214).

8. A wet mop according to claim 1 wherein the water tank (10) comprises at least a first section (13), a second section (14) and a third section (15) in communication with each other, the third section (15) being located between the first section (13) and the second section (14) and having a maximum water level of the third section (15) lower than the maximum water levels of the first section (13) and the second section (14), the first section (13) having a water inlet (16) at the top thereof and the second section (14) having the air vent (11).

9. A wet mop mechanism as claimed in any one of claims 1 to 8, characterised in that the water tank (10) comprises: go up box (17) and lower lid (18), go up box (17) and be used for the water storage, be provided with a plurality of apopore (31) on lower lid (18).

10. A wet mop mechanism as claimed in claim 9, characterised in that the lower cover (18) is provided with a first drainage slot (32), the first drainage slot (32) being provided on the side of the lower cover (18) facing the upper tank (17).

11. The wet mop mechanism as defined in claim 10, wherein said lower cover (18) further comprises: and the second drainage groove (33) is arranged at the periphery of the first drainage groove (32), the second drainage groove (33) is provided with a plurality of fourth openings (34), and the positions of the fourth openings (34) correspond to the positions of the water outlet holes (31).

12. The wet mop mechanism of claim 10, further comprising: a water pumping device (50), wherein the water pumping device (50) is used for pumping water in the water tank (10) into the first drainage groove (32).

13. A cleaning appliance comprising a wet mop mechanism as claimed in any one of claims 1 to 12.

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