CN219166324U - Sewage tank and floor washing machine - Google Patents

Abstract

The utility model belongs to the technical field of floor washing machines, and provides a sewage tank and floor washing machine, the sewage tank includes box and prevents the structure of overturning, prevents that the structure of overturning includes apron, clamp plate and elastic component, and the box includes shell and baffle, and the shell has the inner chamber, and the baffle separates the inner chamber into filtration wind channel and sewage collection chamber, is equipped with the air inlet that communicates filtration wind channel and sewage collection chamber on the baffle, and the apron movable cover is located one side that the air inlet is close to filtration wind channel; the pressing plate is connected to the inner wall of the filtering air duct; the elastic component is abutted between the cover plate and the pressing plate. When negative pressure exists in the filtering air duct, the cover plate can open the air inlet under the negative pressure effect of the filtering air duct, so that the floor washing machine can work normally; when the filter air duct is not provided with negative pressure, the cover plate can seal the air inlet under the action of restoring force provided by the elastic component, so that the filter module is prevented from being damaged due to the fact that sewage in the sewage collecting cavity enters the filter air duct when the sewage tank is moved or the floor scrubber is integrally moved.

Description

Sewage tank and scrubber

technical field

The application relates to the technical field of floor washing machines, in particular to a sewage tank and a floor washing machine.

Background technique

The washing machine is usually equipped with a sewage tank, a fan and a cleaning module. The sewage tank usually includes a filter air duct and a sewage collection chamber. The sewage collection chamber has a sewage suction port located on the side of the cleaning module. When the floor scrubber is working, the cleaning module (such as a roller brush) rotates to clean the ground, and the fan continuously sucks at the air outlet of the filter air duct to generate airflow. The air flow will carry the dirt thrown out by the roller brush through the suction port of the sewage collection chamber and enter the sewage collection chamber and filter air duct in turn. The particles and sewage that cannot be deposited in the sewage collection chamber are further collected to achieve the purpose of cleaning the ground.

With the washing machine with the above structure, when the washing machine is not working, if the whole washing machine is moved by the user, or the sewage tank is picked up from the washing machine by the user, the sewage in the sewage collection chamber can easily pass through the filter air duct The air inlet of the filter enters the filter air duct, causing damage to the filter module in the filter air duct.

Utility model content

The purpose of the embodiment of the present application is to provide a sewage tank and a washing machine to solve the problem in the prior art that when the whole washing machine is moved by the user, or when the sewage tank is picked up separately from the washing machine by the user, the sewage collection chamber The sewage in the filter air channel easily enters the filter air channel through the air inlet of the filter air channel, causing the technical problem of damage to the filter module in the filter air channel.

In order to achieve the above purpose, the technical solution adopted by this application is to provide a sewage tank, the sewage tank comprising:

A box body, the box body includes a shell and a partition, the shell has an inner cavity, the partition is arranged in the inner cavity and separates the inner cavity into a filter air channel and a sewage collection cavity, the partition The board is provided with an air inlet for connecting the filter air channel and the sewage collection chamber;

An anti-overturning structure, the anti-overturning structure includes a cover plate, a pressure plate and an elastic component, the cover plate is movably covered on the side of the air inlet close to the filter air duct; the pressure plate is connected to the filter air The inner wall of the channel; the elastic component abuts between the cover plate and the pressure plate; wherein, when there is negative pressure in the filter air channel, the cover plate has The open state enables the air inlet to be opened, and the cover plate has a closed state to close the air inlet under the restoring force provided by the elastic component when there is no negative pressure in the filter air duct.

In one of the embodiments, the cover plate is switched between the open state and the closed state in the form of turning over.

In one embodiment, a groove is provided on the surface of the cover plate close to the elastic component, and a groove wall of the groove is used to abut against the elastic component.

In one of the embodiments, the elastic assembly includes a spring and a push rod, and the pressing plate, the spring, the push rod and the cover plate abut against each other in sequence.

In one of the embodiments, the surface of the pressure plate close to the cover plate is protruded with a guide rod and a cylinder, the cylinder surrounds the guide rod, and the spring is located in the cylinder and sleeved On the guide rod, the push rod is slidably embedded in the cylindrical body.

In one of the embodiments, an end of the push rod close to the cover plate has an arc-shaped surface, and the arc-shaped surface is used to abut against the cover plate.

In one of the embodiments, the anti-overturning structure further includes a sealing element, the sealing element is arranged on the surface of the cover plate close to the air inlet, or the sealing element is arranged on the surface of the partition facing the The surface of the filter air duct and surrounds the air inlet, and the sealing member is used to seal the gap between the cover plate and the partition plate when the cover plate is in a closed state.

In one of the embodiments, a baffle surrounding the air inlet is provided on the surface of the partition facing the sewage collection chamber.

In one of the embodiments, the housing includes a detachably connected box body and a box cover, the box body and the box cover form the inner cavity, and the partition is connected to the box cover toward the The surface of the inner cavity is surrounded by the box cover to form the filter air duct.

In order to achieve the above purpose, the present application also provides a washing machine, which includes a main body of the washing machine, a filter module, a fan, a cleaning module and the above-mentioned sewage tank, and the sewage tank is detachably arranged on the washing machine. The main body of the ground machine, the box body also has an air outlet connected to the filter air duct and a sewage suction port communicated with the sewage collection chamber, the filter module is arranged in the filter air duct, the fan and the The cleaning modules are respectively arranged on the main body of the floor washing machine, the air inlet end of the fan communicates with the air outlet, and the cleaning modules are located on the side of the dirt suction port.

The beneficial effects of the waste water tank and the washing machine provided by the application are: compared with the prior art, when the washing machine provided by the application is placed on the ground to work normally, the fan continuously sucks at the air outlet of the filter air duct, and then Negative pressure is generated in the filter air duct and sewage collection chamber, and the cover plate will open the air inlet of the filter air duct under the action of negative pressure, and the sewage and particles thrown out by the cleaning module will flow through the sewage suction port of the sewage collection chamber and enter the sewage collection cavity, and most of the sewage and particles are deposited in the sewage collection cavity, and a small amount of sewage and particles enter the filter air channel through the air inlet of the filter air channel with the air flow, and can be filtered and absorbed by the filter element in the filter air channel, which can realize normal Cleaning operation; when the washing machine stops working, the fan no longer generates negative pressure in the filter air duct, and the cover plate will close the air inlet of the filter air duct under the action of the restoring force provided by the elastic component. When the whole is lifted or moved, or when the waste water tank is picked up from the washing machine, the sewage collection chamber and filter air duct in the waste water tank will always remain isolated from each other, and the sewage in the sewage collection chamber cannot pass through the filter air duct The air inlet of the air inlet enters the filter air duct, which can prevent the sewage from damaging the filter modules in the filter air duct.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the accompanying drawings that need to be used in the descriptions of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings in the following description are only for the present application For some embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings without paying creative efforts.

Fig. 1 is the schematic diagram of the explosive structure of the washing machine provided by the embodiment of the present application;

Fig. 2 is a cut-away structural schematic diagram 1 of the sewage tank provided by the embodiment of the present application, showing the state of the anti-overturning structure and the flow path of gas in the sewage tank when it is subjected to external negative pressure;

Fig. 3 is the second cut-away structural schematic diagram of the waste water tank provided by the embodiment of the present application, showing the state when the anti-overturning structure is not subjected to external negative pressure;

Fig. 4 is a partial enlarged view of the cut-away structural schematic diagram 1 of the sewage tank shown in Fig. 2, showing the state of the anti-overturning structure when it is subjected to external negative pressure;

Fig. 5 is a partial enlarged view of the cut-away structural schematic diagram II of the waste water tank shown in Fig. 3 , showing the state of the anti-overturning structure when it is not subjected to external negative pressure.

Fig. 6 is a schematic diagram of the explosion structure of the waste water tank provided by the embodiment of the present application;

Fig. 7 is a second schematic diagram of the exploded structure of the waste water tank provided by the embodiment of the present application.

Wherein, each reference sign in the figure:

1-washing machine; 10-sewage tank; 100-box body; 110-outer shell; 111-inner cavity; 1111-filter air duct; 1112-sewage collection cavity; 1 cover; 11022-second cover; 11023-disassembly port; 120-partition; 121-inlet; 122-baffle; 123-flange; 124-installation wall; Sewage suction port; 200-anti-overturning structure; 210-cover plate; 211-groove; 220-pressure plate; 221-guide rod; 222-cylindrical body; 230-elastic component; -arc surface; 240-seal; 250-filter; 20-main body of scrubber; 30-filter module; 40-cleaning module.

Detailed ways

Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, rather than Nothing to indicate or imply that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation should therefore not be construed as limiting the application.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present application, "plurality" means two or more, unless otherwise specifically defined.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the phrases "in one embodiment" or "in some embodiments" appear in various places throughout the specification, not all referring to the same embodiments. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments.

Referring to Fig. 1 and Fig. 2, the sewage tank 10 and the washing machine 1 provided by the embodiment of the present application are now described. The scrubber 1 includes a sewage tank 10 , a scrubber main body 20 , a filter module 30 , a fan (not shown in the figure) and a cleaning module 40 .

Referring to Fig. 2 and Fig. 3, sewage tank 10 comprises box body 100 and anti-overturning structure 200, and box body 100 comprises shell 110 and partition plate 120, and shell 110 has inner chamber 111, and partition plate 120 is located in inner cavity 111 and will The inner cavity 111 is divided into a filter air duct 1111 and a sewage collection chamber 1112. The partition plate 120 is provided with an air inlet 121 for communicating with the filter air duct 1111 and the sewage collection chamber 1112. The air outlet 130 and the sewage suction port 140 communicate with the sewage collection cavity 1112 . The anti-overturning structure 200 includes a cover plate 210, a pressure plate 220 and an elastic assembly 230. The cover plate 210 is movably covered on the side of the air inlet 121 close to the filter air duct 1111; the pressure plate 220 is connected to the inner wall of the filter air duct 1111; the elastic assembly 230 Abutting between the cover plate 210 and the pressure plate 220; when there is a negative pressure in the filter air duct 1111, the cover plate 210 has an open state that the air inlet 121 is opened under the negative pressure of the filter air duct 1111 (see FIG. 2 and FIG. 4 ), when there is no negative pressure in the filter air duct 1111, the cover plate 210 has a closed state in which the air inlet 121 is closed under the restoring force provided by the elastic component 230 (see FIG. 3 and FIG. 5 ).

In an optional embodiment, when the fan is started, a negative pressure will be formed in the filter air channel 1111 through the air outlet 130, and a pressure difference will be formed with the sewage collection chamber 1112, so that the cover plate 210 overcomes the elastic force of the elastic component 230, This causes the air inlet 121 to be opened.

In another optional embodiment, when the fan is turned off, the filter air channel 1111 and the sewage collection chamber 1112 maintain the same pressure, so that the cover plate 210 is under the action of the elastic recovery force of the elastic component 230, so that the air inlet 121 closure.

Please refer to Fig. 2, the filter module 30 is arranged in the filter air duct 1111, the fan is arranged at the air outlet 130 of the filter air duct 1111 of the waste water tank 10, the air inlet end of the fan communicates with the air outlet 130 of the filter air duct 1111, and the fan Negative pressure can be generated in the sewage collection chamber 1112 of the filter air channel 1111 during operation. The arrows in Fig. 2 show the flow direction of the gas in the sewage tank 10 when the fan is working. On the side of the mouth 140 , the cleaning module 40 can throw out the sewage and particles on the ground, and the sewage and particles are sucked into the sewage collection cavity 1112 through the sewage suction port 140 .

Compared with the prior art, the waste water tank 10 provided by the present application, when the floor washing machine 1 is placed on the ground to work normally, the fan continuously sucks in the air outlet 130 of the filter air duct 1111, and then sucks in the air filter air duct 1111 and the sewage collection chamber. Negative pressure is generated in 1112, and the cover plate 210 will open the air inlet 121 of the filter air duct 1111 under the action of negative pressure, and the sewage and particulate matter thrown out by the cleaning module 40 will enter the sewage collection chamber 1112 through the sewage suction port 140 with the air flow, and the large Part of the sewage and particulate matter is deposited in the sewage collection cavity 1112, and a small amount of sewage and particulate matter enters the air filter duct 1111 through the air inlet 121 of the air filter duct 1111 with the air flow, and is filtered and absorbed by the filter module 30 in the air filter duct, so that normal cleaning operation; when the washing machine 1 stops working, the fan no longer generates negative pressure in the filter air duct 1111, and the cover plate 210 will close the air inlet of the filter air duct 1111 under the action of the restoring force provided by the elastic component 230 121, in this way, when the washing machine 1 is lifted or moved as a whole, or when the sewage tank 10 is picked up from the washing machine 1, the sewage collection cavity 1112 and the filter air duct 1111 in the sewage tank 10 will always keep mutual In the isolated state, the sewage in the sewage collection cavity 1112 cannot enter the filter air duct 1111 through the air inlet 121 of the filter air duct 1111 , which can prevent the sewage from damaging the filter module 30 in the filter air duct 1111 .

In another embodiment of the present application, please refer to FIG. 4 and FIG. 5 , the cover plate 210 is switched between an open state and a closed state in a reversed manner.

Specifically, one end of the cover plate 210 can be hinged to the partition 120, and the other end of the cover plate 210 can abut against the elastic component 230; It is not limited here.

In the waste water tank 10 provided in this embodiment, the cover plate 210 is designed to switch between the open state and the closed state in the form of flipping, so that the cover plate 210 in the open state does not block the airflow entering through the air inlet 121 as much as possible. , so as to avoid affecting the absorption effect of the filter module 30 in the filter air channel 1111 on sewage or particulate matter, and realize a simple structure and occupy a small space.

In another embodiment of the present application, please refer to FIG. 4 and FIG. 5 , a groove 211 is provided on the surface of the cover plate 210 close to the elastic component 230 , and the groove wall of the groove 211 is used to abut against the elastic component 230 . , it is beneficial for the elastic component 230 to abut against the cover plate 210 stably, and to avoid slipping between the elastic component 230 and the cover plate 210 as much as possible.

In another embodiment of the present application, please refer to FIG. 4 and FIG. 5 , the anti-overturning structure 200 further includes a sealing member 240, the sealing member 240 can be arranged on the surface of the cover plate 210 close to the air inlet 121, and the sealing member 240 can also be provided On the surface of the partition 120 facing the filter air duct 1111 and surrounding the air inlet 121, the seal 240 is interposed between the cover 210 and the partition 120 when the cover 210 is in a closed state, and the seal 240 can seal the cover 210 and the gap between the partition 120.

Specifically, the sealing member 240 can be a silicone sealing ring or a rubber sealing ring, etc., which can be set according to needs. The sealing member 240 can be installed on the surface of the cover plate 210 close to the air inlet 121 or on the partition by gluing or clamping. 120 faces the surface of the filtering air duct 1111 .

In the waste water tank 10 provided in this embodiment, the sealing member 240 can seal the gap between the cover plate 210 and the partition plate 120 , thereby maximally ensuring that the sewage in the sewage collection chamber 1112 does not enter the filter air duct 1111 through the air inlet 121 .

In another embodiment of the present application, please refer to FIG. 4 and FIG. 5 , the elastic assembly 230 includes a spring 231 and a push rod 232 , and the pressure plate 220 , the spring 231 , the push rod 232 and the cover plate 210 abut against each other in sequence.

Specifically, the two ends of the spring 231 can be fixedly connected or abutted with the pressing plate 220 and the push rod 232 respectively. When the barrel 222 is used, the two ends of the spring 231 can only abut against the pressure plate 220 and the push rod 232 respectively without being fixedly connected.

The sewage tank 10 provided in this embodiment adopts the combination of spring 231 and push rod 232 as the elastic component 230. Since the spring 231 has better elastic deformation capacity, the push rod 232 has better strength and rigidity, and can move along a determined path with The abutment of the cover plate 210 and the combination of the two can ensure that the elastic component 230 provides a suitable restoring force for the cover plate 210 , and ensure that the elastic component 230 pushes against the cover plate 210 stably and reliably.

In another embodiment of the present application, please refer to FIG. 4 and FIG. 5 , the surface of the pressure plate 220 close to the cover plate 210 is protruded with a guide rod 221 and a cylinder 222, the cylinder 222 surrounds the guide rod 221, and the spring 231 is located in the circle. The cylinder body 222 is sleeved on the guide rod 221 , and the push rod 232 is slidably embedded in the cylinder body 222 or sleeved on the outside of the cylinder body 222 .

In the sewage tank 10 provided in this embodiment, the guide rod 221 can guide and position the spring 231, and the cylinder 222 can guide and position the spring 231 and the push rod 232 at the same time, which is beneficial for the elastic component 230 to stably push the cover plate 210, to avoid the situation that the cover plate 210 is opened excessively or the cover plate 210 is not tightly closed due to the twisting and shaking of the spring 231 and the like.

In another embodiment of the present application, please refer to FIG. 5 , an end of the push rod 232 close to the cover plate 210 has an arc-shaped surface 2321 , and the arc-shaped surface 2321 is used to abut against the cover plate 210 .

Optionally, the end of the push rod 232 close to the cover plate 210 has a hemispherical surface.

In the waste water tank 10 provided in this embodiment, the surface of the push rod 232 used to abut against the cover plate 210 is an arc-shaped surface 2321, which can avoid the friction between the push rod 232 and the cover plate 210 to generate noise, and is also beneficial The push rod 232 pushes against the cover plate 210 smoothly without jamming.

In another embodiment of the present application, please refer to FIG. 4 and FIG. 5 , a baffle 122 surrounding the air inlet 121 is provided on the surface of the partition 120 facing the sewage collection chamber 1112 .

In the sewage tank 10 provided in this embodiment, the baffle plate 122 can prevent the sewage droplets with a smaller particle size from the sewage collection cavity 1112 from entering the filter air duct 1111, so that the sewage can be deposited in the sewage collection cavity 1112 as much as possible, and reduce the amount of sewage entering the filter air duct 1111. The quantity of the sewage droplets inside is beneficial to reduce the load of the filter module 30 in the filter air channel 1111, and ensure that the filter module 30 can effectively play the role of adsorption for a long time.

In another embodiment of the present application, please refer to FIG. 4 and FIG. 5 , the surface of the partition 120 facing the filter air duct 1111 is provided with a flange 123 surrounding the air inlet 121 , and the surface of the cover plate 210 facing the air inlet 121 When the sealing member 240 is provided, the flange 123 can abut against the sealing member 240 when the cover plate 210 covers the air inlet 121 of the filter air duct 1111, and when the flange 123 is in contact with the sealing member 240, the flange 123 can make the The sealing member 240 produces relatively large elastic deformation, which is beneficial for the sealing member 240 to seal the air inlet 121 more tightly.

In another embodiment of the present application, please refer to FIG. 3 , FIG. 6 and FIG. 7 , the housing 110 includes a detachably connected box body 1101 and a box cover 1102 , the box body 1101 and the box cover 1102 form an inner cavity 111 surrounded by a partition 120 is connected to the surface of the case cover 1102 facing the inner chamber 111 and is surrounded by the case cover 1102 to form a filter air duct 1111 .

In the sewage tank 10 provided in this embodiment, the tank cover 1102 is disassembled from the tank body 1101, and the partition plate 120 is also disassembled from the tank body 1101 together with the tank cover 1102, so that it can be directly used in the sewage collection chamber 1112. The dirt is cleaned, and the operation is more convenient.

In an optional embodiment, the partition 120 may be fixedly connected to the tank cover 1102 .

Optionally, please refer to Fig. 3, Fig. 6 and Fig. 7, the box body 1101 is a frame-like structure with an open top, and the box cover 1102 includes a first cover 11021 and a second cover 11022, the first cover 11021 has a removable Port 11023, the edge of the partition 120 is connected to the disassembly port 11023 and integrally formed with the first cover 11021, the partition 120 is recessed downward relative to the first cover 11021, and the integrally formed first cover 11021 and the partition 120 is detachably covered on the top of the box body 1101, the space between the first cover 11021, the partition 120 and the box body 1101 forms a sewage collection cavity 1112, the second cover 11022 is covered at the disassembly port 11023, That is, the second cover body 11022 is covered above the partition plate 120 , and the space between the second cover body 11022 and the partition plate 120 forms a filter air channel 1111 . In this way, the second cover 11022 can be disassembled from the box body 1101 separately, so that the filter module 30 in the filter air duct 1111 can be disassembled and maintained; the integrally formed first cover 11021 can be removed from the box body 1101 And the partition 120, the second cover 11022 will also be disassembled from the tank body 1101 together with the integrally formed first cover 11021 and the partition 120, so that the dirt in the sewage collection chamber 1112 can be cleaned, and the operation is relatively easy. convenient.

Optionally, referring to FIG. 3 , the partition 120 has an installation wall 124 inclined relative to the horizontal direction, the air inlet 121 is arranged on the installation wall 124, the air inlet 121 is provided with a filter screen 250, and the filter module 30 is relatively horizontal. The direction is obliquely arranged in the filter air duct 1111 . Both the filter screen 250 and the filter module 30 are arranged inclined relative to the horizontal plane, which can effectively utilize the space of the filter air duct 1111 and make the structure of the sewage tank 10 more compact.

Please refer to Fig. 1 and Fig. 2, the application also provides a washing machine 1, the washing machine 1 includes a sewage tank 10, a washing machine main body 20, a filter module 30, a fan and a cleaning module 40, and the sewage tank 10 is detachable Located on the main body 20 of the washing machine, the box body 100 also has an air outlet 130 connected to the filter air duct 1111 and a sewage suction port 140 connected to the sewage collection chamber 1112. The filter module 30 is arranged on the filter air duct 1111. The fan and the cleaning module 40 are all arranged on the main body of the washing machine 20, the air inlet end of the fan communicates with the air outlet 130 of the filter air duct 1111, and the cleaning module 40 is arranged on the side of the sewage suction port 140 of the sewage collection chamber 1112.

The floor washing machine 1 provided in this embodiment, when working normally, the fan continuously sucks in the air outlet 130 of the filter air duct 1111, and then generates negative pressure in the filter air duct 1111 of the sewage tank 10 and the sewage collection chamber 1112, and the cover plate 210 will open the air inlet 121 of the filter duct 1111 under the action of negative pressure, and the sewage and particulate matter thrown out by the cleaning module 40 will enter the sewage collection chamber 1112 through the sewage suction port 140 with the airflow, and most of the sewage and particulate matter will be deposited in the sewage collection chamber. In the cavity 1112, a small amount of sewage and particles enter the filter air channel 1111 through the air inlet 121 of the filter air channel 1111 with the air flow, and are filtered and absorbed by the filter module 30 in the filter air channel, which can realize normal cleaning operations; 1. When the fan stops working, the fan no longer generates negative pressure in the filter air duct 1111, and the cover plate 210 will close the air inlet 121 of the filter air duct 1111 under the action of the restoring force provided by the elastic component 230. 1 When the whole is lifted or moved, or when the waste water tank 10 is lifted or moved from the floor washing machine 1, the sewage collection cavity 1112 and the filter air duct 1111 in the waste water tank 10 will always be kept in a state of being isolated from each other, and the sewage is collected The sewage in the cavity 1112 cannot enter the filter air duct 1111 through the air inlet 121 of the filter air duct 1111, which can prevent the sewage from damaging the filter module 30 in the filter air duct 1111, and can also prevent the sewage from flowing backward into the fan and damaging the fan.

The above descriptions are only preferred embodiments of the application, and are not intended to limit the application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the application should be included in the protection of the application. within range.

Claims (10)

1. A sewage tank, characterized in that, the sewage tank comprises: A box body, the box body has a shell and a partition, the shell has an inner cavity, the partition is arranged in the inner cavity and separates the inner cavity into a filter air channel and a sewage collection cavity, the partition The board is provided with an air inlet for connecting the filter air channel and the sewage collection chamber; An anti-overturning structure, the anti-overturning structure includes a cover plate, a pressure plate and an elastic component, the cover plate is movably covered on the side of the air inlet close to the filter air duct, the pressure plate is connected to the filter air The inner wall of the channel; the elastic component abuts between the cover plate and the pressure plate; wherein, when there is negative pressure in the filter air channel, the cover plate has The open state enables the air inlet to be opened, and the cover plate has a closed state to close the air inlet under the restoring force provided by the elastic component when there is no negative pressure in the filter air duct. 2. The waste water tank according to claim 1, wherein the cover plate is switched between the open state and the closed state in the form of turning over. 3 . The waste water tank according to claim 1 , wherein a groove is provided on the surface of the cover plate close to the elastic component, and a groove wall of the groove is used to abut against the elastic component. 4 . 4 . The waste water tank according to claim 1 , wherein the elastic assembly includes a spring and a push rod, and the pressure plate, the spring, the push rod and the cover plate abut against each other in sequence. 5. The waste water tank according to claim 4, wherein a guide rod and a cylinder are provided on the surface of the pressure plate close to the cover plate, the cylinder surrounds the guide rod, and the spring is located The cylindrical body is sleeved on the guide rod, and the push rod is slidably embedded in the cylindrical body. 6 . The waste water tank according to claim 4 , wherein an end of the push rod close to the cover plate has an arc-shaped surface, and the arc-shaped surface is used to abut against the cover plate. 6 . 7. The waste water tank according to claim 1, wherein the anti-overturning structure further comprises a seal, the seal is arranged on the surface of the cover plate close to the air inlet, or the seal A part is provided on the surface of the partition facing the filter air duct and surrounds the air inlet, and the sealing part is used to seal between the cover and the partition when the cover is in a closed state Clearance. 8. The sewage tank according to claim 1, wherein a baffle surrounding the air inlet is provided on the surface of the partition facing the sewage collection chamber. 9. The waste water tank according to claim 1, wherein the housing comprises a detachably connected tank body and a tank cover, the tank body and the tank cover form the inner cavity, and the partition plate It is connected to the surface of the box cover facing the inner cavity and surrounded by the box cover to form the filter air duct. 10. A floor washing machine, characterized in that the floor washing machine comprises a floor washing machine main body, a filter module, a fan, a cleaning module and the sewage tank according to any one of claims 1-9, the sewage tank can be It is detachably arranged on the main body of the washing machine, and the box body also has an air outlet connected to the filter air duct and a sewage suction port connected to the sewage collection chamber, and the filter module is arranged on the filter air In the tunnel, the fan and the cleaning module are respectively arranged on the main body of the washing machine, the air inlet end of the fan communicates with the air outlet, and the cleaning module is located on the side of the dirt suction port.

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