CN216754380U - Water tank and surface cleaning equipment - Google Patents

Abstract

A water tank and a surface cleaning apparatus are provided. The water tank includes: the water tank body is provided with a liquid containing cavity, a partition wall is arranged in the liquid containing cavity, the edge of the partition wall is connected to the peripheral wall of the liquid containing cavity, and the partition wall is provided with a mounting opening; and the flexible separator is arranged along the axial direction of the liquid containing cavity and is hermetically arranged at the mounting port, and the liquid containing cavity is divided into a clear water cavity and a sewage cavity with variable volumes by the separator and the separating wall. This water tank, the fixed mode of separator is simple, and water tank low in manufacturing cost, the separator is fixed at flourishing liquid intracavity position moreover, and the separator only requires to be sealed in installing port department with the partition wall, realizes very easily, and under the condition that the separator does not damage, the problem of leaking can not appear in separator department in clear water chamber and sewage chamber, and the problem by the fish tail can not appear in the water tank yet.

Description

Water tank and surface cleaning equipment

Technical Field

The utility model relates to the field of electrical equipment, in particular to a water tank and surface cleaning equipment.

Background

The related art provides a floor washing machine with a dynamically adjustable water tank volume, the water tank is divided into a clear water cavity 11 and a sewage cavity 12 through an adjusting partition plate 13 inside the water tank, the adjusting partition plate 13 is driven by a screw nut motor structure 14, the volume of the water tank is dynamically allocated, and the volume of the clear water cavity 11 and the volume of the sewage cavity 12 are more reasonably allocated according to actual use requirements.

The adjusting partition plate 13 and the inner wall of the water tank are sealed through a sealing piece, the movement and the sealing are contradictory, the movement requires a certain movable gap, the sealing requires no gap, and the scheme of meeting the movement and the sealing is difficult to realize; in addition, the adjusting partition plate 13 moves back and forth to scratch the inner wall of the water tank, and particularly, a transparent water tank can form visible scratches; in addition, the screw nut motor structure 14 is complex, the cost is high, and the screw nut is easy to adhere to dirt in the sewage cavity 12 to cause transmission clamping stagnation.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a water tank which is simple in structure, easy to manufacture, low in manufacturing cost and good in using effect.

The embodiment of the utility model also provides surface cleaning equipment.

In order to achieve the above object, an embodiment of the present invention provides a water tank, including: the water tank comprises a water tank body provided with a liquid containing cavity, wherein a partition wall is arranged in the liquid containing cavity, the edge of the partition wall is connected to the peripheral wall of the liquid containing cavity, and the partition wall is provided with a mounting opening; and the flexible separator is arranged along the axial direction of the liquid containing cavity and is hermetically installed at the mounting port, and the separator and the separation wall jointly divide the liquid containing cavity into a clear water cavity and a sewage cavity with variable volumes.

In an exemplary embodiment, the partition wall is a folded plate, the folded plate includes two transverse plates and a vertical plate connecting the two transverse plates, the vertical plate is arranged along an axial direction of the liquid containing cavity, and the mounting port is located on the vertical plate.

In an exemplary embodiment, the average value of the distances between the two transverse plates and the end wall of the clear water cavity far away from the sewage cavity is L1, the axial height of the liquid containing cavity is L2, and L1/L2 is set to be 0.25-0.5.

In an exemplary embodiment, a first air duct is arranged on the installation side of the water tank body, the first air duct comprises a conveying section and an outlet section which are communicated with each other, the conveying section extends from the clean water cavity to the sewage cavity, the outlet section is located in the sewage cavity, an outlet of the outlet section is communicated with the sewage cavity, the two transverse plates are axially spaced in the liquid containing cavity and are connected to the side wall of the installation side of the water tank body and the side wall of the second side of the water tank body in a one-to-one correspondence manner, and the installation side and the second side are opposite sides.

In an exemplary embodiment, the water tank body is further provided with a second air channel, the sewage cavity is located between the clean water cavity and the second air channel, and an inlet of the second air channel is communicated with the sewage cavity.

In an exemplary embodiment, the outlet of the outlet section and the inlet of the second air duct are both communicated with one end of the sewage cavity far away from the clean water cavity.

In an exemplary embodiment, the outlet section extends from the peripheral wall of the sewage chamber into the sewage chamber, and the inlet of the second air duct is located on an end wall of one end of the sewage chamber far away from the clean water chamber.

In an exemplary embodiment, the outlet of the outlet section and the inlet of the second air duct are both located in a region of the sewage chamber remote from the mounting side.

In an exemplary embodiment, the separator is a diaphragm.

In an exemplary embodiment, the diaphragm is provided with a convex structure, and a plane where the diaphragm is connected with the partition wall is arranged along an axial direction of the liquid containing chamber.

The surface cleaning equipment provided by the embodiment of the utility model comprises a machine body and the water tank in any one of the embodiments, wherein the water tank is arranged on the machine body.

In an exemplary embodiment, the surface cleaning apparatus is a floor scrubber.

In the technical scheme of the utility model, the fixing mode of the separating part is simple, the manufacturing cost of the water tank is low, the separating part is fixed in the liquid containing cavity, the separating part and the separating wall only need to be sealed at the mounting opening, the realization is easy, the problem of leakage of the clean water cavity and the sewage cavity at the separating part can not occur under the condition that the separating part is not damaged, and the problem of scratching of the water tank can not occur.

Drawings

In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic perspective view of a tank of a scrubber according to the related art;

FIG. 2 is a schematic perspective view of an exemplary water tank according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of the water tank of FIG. 2 in a right side view;

FIG. 4 is a schematic cross-sectional view of the water tank of FIG. 2 in a right side view in another use state;

FIG. 5 is a schematic right side cross-sectional structural view of another example of a water tank according to an embodiment of the present invention;

FIG. 6 is a schematic cross-sectional front view of the water tank of FIG. 5;

FIG. 7 is a schematic right side cross-sectional view of another example of a water tank according to an embodiment of the present invention;

FIG. 8 is a schematic right side cross-sectional view of another example of a water tank in accordance with an embodiment of the present invention;

FIG. 9 is a schematic right side cross-sectional view of another example of a water tank according to an embodiment of the present invention;

FIG. 10 is a schematic perspective view of a floor washing machine according to an embodiment of the present invention;

FIG. 11 is a partial schematic view of the cross-sectional configuration of the scrubber shown in FIG. 10.

Wherein, the corresponding relationship between the reference numbers and the component names in fig. 1 is as follows:

11 clear water chamber, 12 sewage chambers, 13 adjusting partition plates and 14 screw nut motor structures.

The correspondence between the reference numbers and the part names in fig. 2 to 11 is:

100 water tank body, 110 first wind channel, 111 conveying section, 112 outlet section, 120 second wind channel, 130 clear water cavity, 131 outlet valve, 132 water adding cover, 140 sewage cavity, 141 second barrier wall, 150 baffle, 151 first barrier wall, 160 folding plate, 161 transverse plate, 170 convex hull, 180 support rib, 191 first area, 192 second area, 200 separator, 300 installation side, 400 second side, 510 fuselage, 520 ground brush, 530 fan assembly, 610 first folding section, 620 second folding section, 630 third folding section.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

It should be noted that all directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly stated or limited, the terms "connected", "fixed", and the like are to be understood broadly, for example, "fixed" may be fixedly connected, may be detachably connected, or may be integrated; can be mechanically or electrically connected; "coupled" may be direct or indirect through an intermediary, and may be internal to two elements or an interaction of two elements unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

An embodiment of the present invention provides a water tank, including: the water tank comprises a water tank body provided with a liquid containing cavity, wherein a partition wall is arranged in the liquid containing cavity, the edge of the partition wall is connected to the peripheral wall of the liquid containing cavity, and the partition wall is provided with a mounting opening; and the flexible separator is arranged along the axial direction of the liquid containing cavity and is hermetically installed at the mounting port, and the separator and the separation wall jointly divide the liquid containing cavity into a clear water cavity and a sewage cavity with variable volumes.

This water tank, the fixed mode of separator is simple, and water tank low in manufacturing cost, the separator is fixed at flourishing liquid intracavity position moreover, and the separator only requires to be sealed in installing port department with the partition wall, realizes very easily, and under the condition that the separator does not damage, the problem of leaking can not appear in separator department in clear water chamber and sewage chamber, and the problem by the fish tail can not appear in the water tank yet.

The partition wall can be a folded plate which is simple in structure and easy to manufacture.

The embodiment of the utility model also provides surface cleaning equipment, which comprises a machine body and the water tank in any embodiment, wherein the water tank is arranged on the machine body.

The surface cleaning apparatus has all the advantages of the water tank provided by any of the above embodiments, and will not be described herein.

Fig. 2 is a schematic perspective view of an example of a water tank according to an embodiment of the present invention. Fig. 3 is a schematic sectional view of a right side view of the water tank of fig. 2 in a use state. Fig. 4 is a schematic sectional view of a right side structure of the water tank shown in fig. 2 in another use state. Fig. 5 is a schematic right-side sectional view of another example of a water tank according to an embodiment of the present invention. Fig. 6 is a schematic sectional view of a front view of the water tank shown in fig. 5. Fig. 7 is a schematic right-side sectional view of another example of a water tank according to an embodiment of the present invention. Fig. 8 is a schematic right-side sectional view of a water tank according to another example of the present invention. Fig. 9 is a schematic right-side sectional view of another example of a water tank according to an embodiment of the present invention. Fig. 10 is a schematic perspective view of a floor washing machine according to an embodiment of the present invention. Fig. 11 is a partial schematic view of the sectional structure of the floor washing machine shown in fig. 10.

As shown in fig. 2 to 11, an embodiment of the present invention provides a water tank applied to a floor washing machine, including a water tank body 100 and a flexible partition 200, where the water tank body 100 is provided with a liquid containing cavity, a first air duct 110 and a second air duct 120, an edge of the partition 200 is directly or indirectly connected to a circumferential wall of the liquid containing cavity and divides the liquid containing cavity into a clear water cavity 130 and a sewage cavity 140 with variable volumes, the clear water cavity 130 and the sewage cavity 140 are located on the same side of the first air duct 110, and the clear water cavity 130, the sewage cavity 140 and the second air duct 120 are sequentially arranged along an extending direction of the first air duct 110, an outlet of the first air duct 110 is communicated with one end of the sewage cavity 140 far from the clear water cavity 130, and an inlet of the second air duct 120 is communicated with one end of the sewage cavity 140 far from the clear water cavity 130. The first air duct 110 extends from the inlet of the first air duct 110 to the outlet of the first air duct 110.

This technical scheme, the fixed mode of separator 200 is simple, easy to realize, with low costs, and separator 200 is fixed in flourishing liquid intracavity position moreover, and under the condition that separator 200 does not damage, the problem of leaking can not appear in clear water chamber 130 and sewage chamber 140 department at separator 200.

As shown in fig. 2 to 5 and 7 to 11, the side of the water tank body 100 where the first air channel 110 is located is a mounting side 300 of the water tank, the side of the water tank body 100 where the clean water chamber 130 and the sewage chamber 140 are located is a second side 400 of the water tank, the mounting side 300 and the second side 400 are opposite sides, and an inlet of the second air channel 120 is far from the mounting side 300 and close to the second side 400. The water tank is applied to a floor washing machine, the water tank is installed on a machine body 510 of the floor washing machine, the installation side 300 of the water tank faces the machine body 510 of the floor washing machine, the clear water cavity 130 is located between the sewage cavity 140 and a floor brush 520 of the floor washing machine, an inlet of the first air duct 110 faces the floor brush 520, an outlet of the second air duct 120 faces the floor brush 520 in a back mode and is matched with a fan assembly 530 on the filter and the machine body 510 for use, and the fan assembly 530 comprises a cover body and a motor and the like installed in the cover body. The water in the clear water chamber 130 is gradually consumed when the floor cleaning machine works, the separating part 200 deforms towards the clear water chamber 130, the volume of the clear water chamber 130 is gradually reduced, the volume of the sewage chamber 140 is gradually increased, sewage enters the sewage chamber 140 from the outlet of the first air duct 110 along the first air duct 110, the liquid level in the sewage chamber 140 is lower, sewage in the sewage chamber 140 is always below the inlet of the second air duct 120 under the large-angle inclination of the body 510 of the floor cleaning machine, the sewage in the sewage chamber 140 cannot enter the second air duct 120 from the inlet of the second air duct 120, the motor cannot be damaged when the second air duct 120 enters the fan assembly through the filter, and therefore the floor cleaning machine can clean low-height spaces such as the lower part of the bed body and the lower part of the cabinet body.

Furthermore, as shown in fig. 3 to 5, 7, 8 and 11, the outlet of the first air duct 110 extends from the installation side 300 to the second side 400 into the sewage chamber 140 (the first air duct 110 may include a conveying section 11 and an outlet section 112 that are communicated with each other, the conveying section 111 is arranged along the axial direction of the liquid containing chamber, the outlet section 112 is located in the sewage chamber 140, the outlet section 112 extends from the conveying section 111 along the radial direction of the sewage chamber 140 so that the outlet of the outlet section 112 is far from the installation side, the first air duct 110 is communicated with the sewage chamber 140 through the outlet section 112), the inlet of the second air duct 120 is located on the end wall of the sewage chamber 140 far from one end of the clean water chamber 130, the outlet of the first air duct 110 is separated from the inlet of the second air duct 120 by the partition 150, the outlet of the first air duct 110 faces the partition 150, a first baffling section 610 is configured between the outlet of the first air duct 110 and the partition 150, the main body 510 of the floor washing machine can ensure that the outlet of the first air duct 110 is above the liquid level in the sewage chamber 140 in an inclined state, the problem that the motor is damaged when encountering water can be avoided by preventing the sewage in the sewage chamber 140 from flowing back from the outlet of the first air duct 110 along the first air duct 110 under the large-angle inclination of the body 510, and by blowing the sewage in the sewage chamber 140 by the airflow (moving from the outlet of the first air duct 110 to the inlet of the second air duct 120 through the sewage chamber 140) and blowing the sewage into the fan assembly 530 along the second air duct 120.

As shown in fig. 3 to 5, 7 and 8, the outlet of the first air duct 110 and the inlet of the second air duct 120 may be sequentially arranged in a first direction from the installation side 300 to the second side 400; alternatively, as shown in fig. 9, the outlet of the first air duct 110 and the inlet of the second air duct 120 may be sequentially arranged in a second direction, the second direction is perpendicular to the first direction, and the second direction is parallel to the end wall of the clean water chamber 130 far from the sewage chamber 140; the objectives of the present application can be achieved without departing from the design concept of the present invention, and therefore, the present application shall not be repeated herein and shall fall within the protection scope of the present application.

Preferably, as shown in fig. 5, the partition plate 150 is provided with a first blocking wall 151, the first blocking wall 151 is transversely disposed outside the outlet of the first air duct 110, is spaced from the outlet of the first air duct 110, and blocks the outlet of the first air duct 110, and a second flow-folding section 620 is configured between the outlet of the first flow-folding section 610 and the first blocking wall 151, so that the airflow blown out from the outlet of the first air duct 110 can be prevented from directly blowing to the sewage level in the sewage cavity 140 to cause sewage splashing; the second blocking wall 141 is disposed in the sewage chamber 140, the second blocking wall 141 is transversely disposed outside the inlet of the second air duct 120, is spaced from the inlet of the second air duct 120, and blocks the inlet of the second air duct 120, and a third flow-returning section 630 is formed between the inlet of the second air duct 120 and the second blocking wall 141, so that sewage splashed in the sewage chamber 140 can be better prevented from entering the second air duct 120 through the inlet of the second air duct 120.

The partition 150 may be a straight plate (not shown); alternatively, the partition 150 may be a shaped plate (as shown in fig. 3 to 5, 7 and 8) or the like, which can better block the sewage entering the sewage chamber 140 from the first air duct 110, so that the sewage can better flow into the sewage chamber 140 along the shaped plate under the action of gravity; the objectives of the present application can be achieved without departing from the design concept of the present invention, and therefore, the present application shall not be repeated herein and shall fall within the protection scope of the present application.

As shown in fig. 3 to 6 and 8, the plane where the partition 200 is connected to the liquid holding chamber may be parallel to the end wall of the clean water chamber 130 away from the sewage chamber 140; or, as shown in fig. 7, the plane where the edge of the partition 200 is located is vertically arranged relative to the end wall of the clean water cavity 130 far from the sewage cavity 140, and the adopted technical scheme is that a folded plate 160 is arranged in the liquid containing cavity, the folded plate 160 comprises two transverse plates 161 and a vertical plate, the two transverse plates 161 are located on two sides of the vertical plate and connected through the vertical plate, a mounting opening is arranged on the vertical plate and located between the two transverse plates 161, the partition 200 is fixedly mounted at the mounting opening, the partition 200 and the folded plate 160 divide the liquid containing cavity into the clean water cavity 130 and the sewage cavity 140, the water tank is applied to the floor washing machine, one of the two transverse plates 161 is close to the fan assembly 530 and far from the ground brush 520, and the other of the two transverse plates 161 is close to the ground brush 520 and far from the fan assembly 530; alternatively, the plane where the partition 200 is connected to the liquid holding chamber may be inclined with respect to the end wall of the clean water chamber 130 far from the sewage chamber 140, such as: the partition 200 is inclined from the second side 400 to the mounting side 300 along the extending direction of the first air duct 110 (which can be understood as from bottom to top), as shown in fig. 11, the inclination angle θ can be 15 degrees to 60 degrees, when the floor washing machine of the present embodiment is in normal operation, the machine body 510 forms a certain included angle with the ground, the partition 200 tends to be more horizontal, so that the included angle between the partition 200 and the liquid level in the sewage chamber 140 is small, the effective volume of the sewage chamber 140 facing one end of the clean water chamber 130 can be effectively increased, and the distance between the liquid level in the sewage chamber 140 and the inlet of the second air duct 120 is larger; or if the partition 200 is inclined from the installation side 300 to the second side 400 along the extending direction of the first air duct 110 (not shown in the figure in this embodiment), the inclination angle may be 15-60 degrees, when the floor washing machine in this embodiment works normally, the lowest point of the sewage cavity 140 is lower and takes the shape of an inverted triangle, the inverted triangle increases the volume of the sewage cavity 140, the sewage cavity 140 can contain more sewage, and the distance between the liquid level in the sewage cavity 140 and the inlet of the second air duct 120 is larger; the above objectives can be achieved without departing from the design concept of the present invention, and therefore, the details are not repeated herein and all of the objectives should fall within the protection scope of the present application.

Illustratively, as shown in fig. 3 to 6, 8 and 11, when the plane where the partition 200 is connected to the liquid containing chamber is disposed parallel to or inclined with respect to the end wall of the clean water chamber 130 far from the sewage chamber 140, referring to fig. 8, the distance between the edge of the partition 200 and the end wall of the clean water chamber 130 far from the sewage chamber 140 is L1, the height of the liquid containing chamber in the extending direction of the first air duct 110 is L2, and when L1/L2>0.5, the volume of the sewage chamber 140 is insufficient; when the L1/L2 is less than 0.25, the volume of the clear water cavity 130 is insufficient, so that the L1/L2 is set to be 0.25-0.5. For a configuration in which the plane in which the partition 200 is connected to the peripheral wall of the liquid holding chamber is disposed obliquely with respect to the axis of the liquid holding chamber, the distance L1 between the partition 200 and the end wall of the clean water chamber 130 remote from the sewage chamber 140 is set to the average of the maximum distance and the minimum distance between the partition and the end wall of the clean water chamber 130 remote from the sewage chamber 140. For the solution that the partition 200 is connected to the bent plate 160, the average distance between the two transverse plates 161 and the end wall of the clean water chamber 130 far away from the sewage chamber 140 is L1, the height of the liquid containing chamber in the extending direction of the first air duct 110 is L2, and L1/L2 is set to be 0.25-0.5.

The clean water chamber 130 is filled with water, at the initial stage of cleaning, the body 510 of the floor washing machine is in an inclined state, the partition 200 protrudes towards the inside of the sewage chamber 140 to form a convex hull 170 (the partition is provided with a protruding structure, and water extrudes the protruding structure to form the convex hull 170), the convex hull 170 leans against the installation side 300, so that a first area 191, adjacent to the installation side 300, of one end of the sewage chamber 140, facing the clean water chamber 130 is filled with the convex hull 170 in a large range and is difficult to contain sewage, the sewage is stored in a second area 192, adjacent to a second side 400, of one end of the sewage chamber 140, facing the clean water chamber 130, the second area 192 is closer to the inlet of the second air duct 120, the air flow entering the sewage chamber 140 from the outlet of the first air duct 110 is easy to blow up the sewage duct of the second area 192, and the sewage is blown into the fan assembly 530 from the inlet of the second air duct 120 along the second air duct 120, so that the motor is damaged when the water meets the water. As shown in fig. 5, a supporting structure may be disposed in the first region 191, the supporting structure may be a plurality of supporting ribs 180 disposed at intervals, the supporting ribs 180 support the convex hull 170, so that a space for accommodating the sewage is formed between adjacent supporting ribs 180, it is ensured that a large amount of sewage can be stored in the first region 191, at this time, the sewage in the second region 192 is very little and is far away from the inlet of the second air duct 120, the problem that the sewage is blown from the inlet of the second air duct 120 to the fan assembly along the second air duct 120 when the airflow entering the sewage chamber 140 from the outlet of the first air duct 110 moves to the inlet of the second air duct 120 does not occur, and the motor can be better prevented from being damaged by water, as the water in the clean water chamber 130 decreases, the convex hull 170 gradually disappears, the partition 200 deforms into the clean water chamber 130, so that the volume of the sewage chamber 140 increases, the liquid level in the soil chamber 140 is also lowered.

Can be as follows: as shown in fig. 5 and 6, at the installation side 300, a plurality of support ribs 180 are provided at intervals in the circumferential direction of the tank body 100, each support rib 180 extends in the axial direction of the tank body 100, and the protrusion height of any one support rib 180 may be set to be gradually reduced from one end far from the partition member 200 to one end near the partition member 200; or, at the mounting side 300, the plurality of support ribs 180 are arranged at intervals along the axial direction of the tank body 100, each support rib 180 extends along the circumferential direction of the tank body 100 (not shown in the figure in this embodiment), the protrusion heights of the plurality of support ribs 180 may be set to be sequentially reduced from one end far away from the partition 200 to one end close to the partition 200, and any support rib 180 is an arc-shaped convex rib; the above objectives can be achieved without departing from the design concept of the present invention, and therefore, the details are not repeated herein and all of the objectives should fall within the protection scope of the present application.

Illustratively, the separating member 200 is provided as a flexible diaphragm that is mounted in a replaceable manner so that the user can replace the diaphragm by himself or herself when the diaphragm is damaged.

The purpose of the present application can be achieved by using a flexible diaphragm made of neoprene, nitrile rubber, polytetrafluoroethylene or polyperfluoroethylene, etc., and the purpose of the flexible diaphragm does not depart from the design concept of the present invention, and the flexible diaphragm is not described herein again and should fall within the protection scope of the present application.

As shown in fig. 3 to 5, an end of the clean water chamber 130 away from the dirty water chamber 140 is provided with a water outlet valve 131 and a water adding cover 132.

An embodiment of the present invention further provides a floor washing machine, as shown in fig. 10 and 11, which includes a floor brush 520, a body 510 connected to the floor brush 520, and a water tank according to any of the embodiments, where the water tank is installed on the body 510, an inlet of the first air duct 110 is communicated with the floor brush 520, an outlet of the second air duct 120 is communicated with a fan assembly 530 on the body 510, and the fan assembly 530 includes a cover body of the outlet and the outlet, and a motor installed in the cover body.

The floor washing machine has all the advantages of the water tank provided by any one of the above embodiments, and the description is omitted.

Illustratively, a filter (not shown) is disposed between the cover and the outlet of the second air duct 520, and the filter is used for filtering dirt in the air flow blown from the second air duct 520 to the cover, so as to better protect the motor inside the cover from dust.

In summary, in the technical solution of the present invention, the water tank is applied to the floor washing machine, the water tank is installed on a machine body of the floor washing machine, the floor brush is installed at one end of the machine body, the inlet of the first air duct is communicated with the floor brush, the outlet of the second air duct is communicated with the fan assembly, the installation side faces the machine body, and the second side faces away from the machine body, the outlet of the first air duct and the inlet of the second air duct are both away from the installation side and close to the second side, when the machine body of the floor washing machine is inclined at a large angle, the liquid level of the sewage in the sewage chamber is located below the outlet of the first air duct and the inlet of the second air duct, and will not flow back to the first air duct from the outlet of the first air duct, and will not flow into the second air duct from the inlet of the second air duct.

In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "mouth" structure ", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the structures referred to have specific orientations, are configured and operated in specific orientations, and thus, are not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "directly connected," "indirectly connected," "fixedly connected," "mounted," and "assembled" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; the terms "mounted," "connected," and "fixedly connected" may refer to a direct connection, an indirect connection through intervening media, and a connection 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.

Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (9)

1. A water tank, comprising:

the water tank comprises a water tank body provided with a liquid containing cavity, wherein a partition wall is arranged in the liquid containing cavity, the edge of the partition wall is connected to the peripheral wall of the liquid containing cavity, and the partition wall is provided with a mounting opening; and

the flexible separator is arranged along the axial direction of the liquid containing cavity and is hermetically installed at the mounting opening, and the liquid containing cavity is divided into a clear water cavity and a sewage cavity with variable volumes by the separator and the separating wall;

the partition wall is a folded plate, the folded plate comprises two transverse plates and a vertical plate connected with the two transverse plates, the vertical plate is arranged along the axial direction of the liquid containing cavity, and the mounting opening is located on the vertical plate.

2. The water tank as claimed in claim 1, wherein the mounting side of the water tank body is provided with a first air channel, the first air channel comprises a conveying section and an outlet section which are communicated with each other, the conveying section extends from the clean water cavity to the sewage cavity, the outlet section is located in the sewage cavity, an outlet of the outlet section is communicated with the sewage cavity, the two transverse plates are spaced in the axial direction of the liquid containing cavity and are connected to the side wall of the mounting side of the water tank body and the side wall of the second side of the water tank body in a one-to-one correspondence manner, and the mounting side and the second side are opposite sides.

3. The water tank as claimed in claim 2, wherein the water tank body is further provided with a second air duct, the sewage chamber is located between the clean water chamber and the second air duct, and an inlet of the second air duct is communicated with the sewage chamber.

4. The water tank of claim 3, wherein the outlet of the outlet section and the inlet of the second air duct are both communicated with one end of the sewage chamber far away from the clean water chamber, and the outlet of the outlet section and the inlet of the second air duct are both located in a region of the sewage chamber far away from the installation side.

5. The water tank as claimed in claim 3, wherein the outlet section extends from a peripheral wall of the sewage chamber into the sewage chamber, and the inlet of the second air duct is located on an end wall of an end of the sewage chamber remote from the clean water chamber.

6. The water tank as claimed in claim 1, wherein the average of the distances between the two transverse plates and the end wall of the clear water cavity far away from the sewage cavity is L1, the axial height of the liquid containing cavity is L2, and L1/L2 is set to be 0.25-0.5.

7. The water tank as claimed in any one of claims 1 to 6, wherein the partition is a diaphragm.

8. The water tank as claimed in claim 7, wherein the diaphragm is provided with a convex structure, and a plane where the diaphragm is coupled with the partition wall is arranged in an axial direction of the liquid containing chamber.

9. A surface cleaning apparatus comprising a body and a water tank as claimed in any one of claims 1 to 8 mounted on the body.

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