CN115634867A - Sewage tank for cleaning device and cleaning device - Google Patents

Abstract

The application belongs to the technical field of cleaning devices and discloses a sewage tank for a cleaning device and the cleaning device. This sewage case includes: the box body is provided with a sewage channel communicated with the cleaning device; a partition plate is arranged in the box body, and the internal space of the box body is divided into an upper space and a lower space by the partition plate. The sewage passage extends from the lower space up through the partition plate to the upper space. The partition plate is provided with a backflow preventing structure, sewage entering the upper space of the box body from the sewage channel can enter the lower space at least through the backflow preventing structure to be stored, and the backflow preventing structure prevents the sewage in the lower space from flowing through the backflow preventing structure to enter the upper space. The anti-reflux structure in the sewage tank can prevent sewage from entering the motor when the cleaning device is used in a flat manner, so that convenience is brought to a user to use the cleaning device.

Description

Sewage tank for cleaning device and cleaning device

Technical Field

The application relates to the technical field of cleaning devices, in particular to a sewage tank for a cleaning device. The present application also relates to a cleaning device comprising such a waste water tank.

Background

As technology has developed, floor washers having a water spray washing function have been developed to more effectively clean floors. The floor washing machine comprises a clear water tank, a water spraying system communicated with the clear water tank, a recovery system and a sewage tank communicated with the recovery system; the recovery system includes a motor disposed above the sump tank. When the floor washing machine is used, the water spraying system sprays water to the ground, and the recovery system sucks sewage into the sewage tank.

However, when the prior art floor washing machine is used, the body of the floor washing machine cannot be inclined to a large extent to wash the bed bottom and the like, because water in the sewage tank may enter the motor to cause the motor to stop rotating or even damage the floor washing machine.

Disclosure of Invention

The application provides a sewage tank for a cleaning device, and a cleaning device. An anti-reflux structure is arranged in the sewage tank to prevent sewage from entering the motor when the cleaning device is used in a flat state.

A wastewater tank for a cleaning apparatus according to a first aspect of the present application includes: the box body is provided with a sewage channel communicated with the cleaning device; a partition plate is provided in the box body, and the partition plate divides an internal space of the box body into an upper space and a lower space. The sewage passage extends from the lower space up through the partition plate to the upper space. The partition plate is provided with a counter-flow preventing structure, sewage entering the upper space of the box body from the sewage channel can enter the lower space at least through the counter-flow preventing structure for storage, and the counter-flow preventing structure prevents the sewage in the lower space from flowing through the counter-flow preventing structure and entering the upper space.

In one embodiment, at least a first portion of the edge of the divider panel is in sealing contact with the side wall of the tank. The partition plate is provided with a first hole group. The backflow prevention structure includes a backflow prevention valve installed on the partition plate corresponding to the first hole group and in the lower space, and the backflow prevention valve is communicated with the upper space through the first hole group. Sewage from the upper space may be stored in the lower space via at least the first set of holes and the anti-reverse valve, which prevents sewage in the lower space from flowing therethrough into the upper space.

In one embodiment, the check valve includes a fitting mounted on the divider plate and a valve body deformable under pressure. The check valve is constructed in a way that sewage from the upper space can prop open the valve body and flow into the lower space for storage; the valve body is closable by the pressure of the sewage in the lower space acting on its outer surface, thereby preventing the sewage in the lower space from flowing therethrough into the upper space.

In one embodiment, the valve body is a flexible, flat-ported valve body.

In one embodiment, a second hole group is further formed in the partition plate, the second hole group being offset from the first hole group in the circumferential direction of the partition plate, the second hole group freely penetrating the upper space and the lower space.

In one embodiment, the first set of holes is diametrically opposed to the second set of holes.

In one embodiment, the separation plate is a cambered plate protruding toward the lower space, and the first hole group and/or the second hole group are offset from the lowest point of the separation plate.

In one embodiment, a blocking wall is provided standing upright along the circumferential direction of the partition plate, the blocking wall extending at least into the upper space.

In one embodiment, the partition plate is further provided with a fitting hole, which is offset from the first hole group and the second hole group; the sewage channel is configured as a sewer pipe which extends from the lower space up through the fitting hole to the upper space.

In one embodiment, an annular baffle is disposed along the assembly aperture, the annular baffle extending into the upper space.

In one embodiment, a cover body is arranged at an opening at the top of the box body, an adapter tube is arranged in the box body, and the cover body is abutted against the adapter tube. The entry of switching pipe is in the same place with the sewage export of sewage pipe is pairwise, and the export of switching pipe is skew the lid.

In one embodiment, the adapter tube and the sewage pipe are of an integrated structure or a split structure.

In one embodiment, a handle is formed on the partition panel, which extends toward the opening of the box body.

In one embodiment, a water level probe group is provided on the cover body, and the water level probe group extends toward the lower space.

In one embodiment, the water level probe set includes a first probe set and a second probe set extending toward the lower space; the second set of probes extends into the headspace and directly above the first set of holes, the first set of probes having a greater extension than the second set of probes.

In one embodiment, the first set of probes extends into the inferior space.

In one embodiment, the cover is further configured with a pair of baffles extending into the upper space and spaced apart in the circumferential direction, the side walls of the box being spaced apart in at least a portion of the side edges of each baffle; the sewage outlet of the sewage pipe is positioned between the baffle plates.

In one embodiment, the cover body is further provided with a back plate, the back plate is arranged on the radial opposite side of the sewage outlet of the sewage pipe, and two ends of the back plate are respectively connected with the corresponding baffle plates.

In one embodiment, the extension of the back plate is less than the extension of the baffle plate.

In one embodiment, a gas outflow channel is provided on the cover body, the inlet of which communicates with the upper space and is offset in the circumferential direction from the outlet of the adapter tube, at the outlet of which a filter element is provided.

A cleaning device according to a second aspect of the present application comprises a shaft having a sweeping member mounted at a first end thereof, a handle configured at a second end thereof, and a liquid treatment assembly mounted on the shaft, the liquid treatment assembly comprising a waste tank according to the above.

In one embodiment, a mounting area matched with the rod body is constructed on the circumferential outer surface of the box body, the sewage tank is arranged at the rear side of the rod body, and the backflow preventing structure is far away from the mounting area in the radial direction; or the sewage tank is arranged on the front side of the rod body, and the backflow preventing structure is close to the mounting area in the radial direction.

The beneficial effect of this application: the application provides a sewage tank for a cleaning device, and a cleaning device. A partition plate is arranged in the sewage tank to divide the tank body into an upper space and a lower space, and an anti-reflux structure is arranged on the partition plate. When the cleaning device is used in a flat manner, the anti-backflow structure can prevent sewage in the lower space from flowing into the upper space, the sewage cannot flow to the motor, the motor cannot stop rotating, and the cleaning device can still normally perform cleaning work. This greatly facilitates the use of the cleaning device by the user.

Drawings

FIG. 1 is a schematic view of a cleaning device according to one embodiment of the present application.

Fig. 2 is a sectional view of a sump according to an embodiment of the present application.

Fig. 3 schematically shows a tank.

Fig. 4 schematically shows the partition plate.

FIG. 5 is a schematic view of a check valve according to one embodiment of the present application.

Fig. 6 schematically shows an open state of the check valve.

Fig. 7 schematically shows the closed state of the check valve.

FIG. 8 schematically illustrates a cross-sectional view of another form of check valve.

Fig. 9 schematically shows the structure of the cover.

Fig. 10 schematically shows a state where the partition plate is mounted in the case.

Fig. 11 schematically shows a state in which the cleaning apparatus is used flat.

Figure 12 schematically illustrates a cleaning device according to another embodiment of the present application.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures.

In the description of the present application, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly and include, for example, fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In this application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplification of operation, but do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

In the embodiment of the present application, as shown in fig. 1, the direction of arrow a is "rear" and the direction opposite to arrow a is "front". As shown in fig. 2, the direction of arrow I is "up" and the direction opposite to arrow I is "down".

Fig. 1 schematically shows a cleaning device 1 according to an embodiment of the present application. As shown in FIG. 1, the cleaning device 1 includes a shaft 10 having a cleaning element 11 (e.g., a floor brush) mounted at a first end of the shaft 10, a handle 12 configured at a second end of the shaft 10, and a liquid treatment assembly 13 mounted on the shaft 10. The liquid treatment assembly 13 may include a motor 14, a clean water tank (not shown), a waste water tank 20 (described in detail below), a water spraying system (not shown), a recycling system (not shown), and the like, wherein the motor 14, the clean water tank, the water spraying system, and the recycling system are well known to those skilled in the art and will not be described herein.

When the cleaning device 1 is in use, the water injection system injects clean water from the clean water tank 15 to the ground to wet the ground; the recycling system sucks the sewage into the sewage tank 20, thereby achieving cleaning of the floor.

The sump 20 will be described in detail below.

Fig. 2 schematically shows the overall structure of the waste water tank 20, and fig. 3 shows the internal structure of the waste water tank 20 in a sectional view. As shown in fig. 2 and 3, the foul water tank 20 includes a tank body 201, and a foul water passage 202 communicating with the cleaning apparatus 1 is provided on the tank body 201. A partition plate 203 is provided in the casing 201, and the partition plate 203 partitions an internal space of the casing 201 into an upper space 204 and a lower space 205. The sewage channel 202 extends from the lower space 205 up through the partition plate 203 to the upper space 204. The partition plate 203 is constructed with the backflow preventing structure 30 so that sewage, which enters the upper space 204 of the tank 201 from the sewage passage 202, can enter the lower space 205 at least via the backflow preventing structure 30 for storage, and the backflow preventing structure 30 prevents sewage in the lower space 205 from flowing therethrough to enter the upper space 204.

With the cleaning apparatus 1 having the foul water tank 20, when the shaft 10 (or the foul water tank 20) is substantially erected (for example, when the angle with respect to the horizontal plane is 90 degrees or more and 60 degrees, hereinafter, simply referred to as "erected"), the foul water is sucked into the foul water channel 202, flows from the foul water channel 202 into the upper space 204, and then enters the lower space 205 through the backflow preventing structure 30 and is stored in the lower space 205. When the shaft 10 (or the wastewater tank 20) is inclined to a large extent (for example, the angle with respect to the horizontal plane is less than or equal to 30 degrees, even the angle with respect to the horizontal plane is about 2 degrees, and hereinafter, it is referred to as "flat"), the backflow prevention structure 30 prevents wastewater in the lower space 205 from flowing backward through the backflow prevention structure 30 and entering the upper space 204, so that wastewater does not flow to the motor 14, the motor 14 does not stop, and the cleaning device 1 can still perform cleaning normally. Therefore, the cleaning apparatus 1 with the waste water tank 20 can be used not only by erecting the shaft 10 but also by largely inclining the shaft 10 even by laying it flat, which is very convenient for the user.

As also shown in fig. 1, a wastewater tank 20 is provided at the rear side of the shaft 10. In this case, as shown in fig. 10, a mounting region 250 to be fitted with the shaft 10 is configured on the circumferential outer surface of the case 201, and the backflow preventing structure 30 is radially distant from the mounting region 250. The mounting region 250 is located at the front side of the cabinet 201 as viewed from the whole of the cleaning apparatus 1, and the backflow preventing structure 30 is located near the rear side of the cabinet 201 (as shown in fig. 1) within the cabinet 201. Thus, when the cleaning apparatus 1 is laid flat (as shown in FIGS. 10 and 11), the backflow prevention structure 30 is closed and in a low position (e.g., relative to the second hole group 210 described below), so that the sewage in the lower space 205 is prevented from flowing therethrough and entering the upper space 204, and the cleaning apparatus 1 can be used normally.

It should be understood that in other types of cleaning devices, the waste water tank 20 may be disposed in front of the shaft 10 (as shown in fig. 12), as long as the flat use mode of the cleaning device 1 is matched with the arrangement position of the backflow preventing structure 30, which is well known to those skilled in the art and will not be described herein. In addition, it should be noted that, as shown in fig. 12, the sewage tank 20 is provided at the front side of the shaft 10, and the backflow preventing structure 30 is radially adjacent to the installation region 250. Thus, when the cleaning apparatus 1 is laid flat (as shown in fig. 12), the backflow prevention structure 30 is closed and in a low position (e.g., relative to the second hole group 210 described below), and thus the sewage in the lower space 205 can be prevented from flowing therethrough and entering the upper space 204, and the cleaning apparatus 1 can be used normally.

In the waste water tank 20 shown in fig. 2 and 3, a lid body 216 is provided at a pouring opening at the top of the tank body 201, and an air outflow passage 218 is provided in the lid body 216. An inlet 219 of the gas outflow passage 218 communicates with the upper space 204. The motor 14 is provided in communication with the outlet 221 of the gas outflow passage 218 to draw air from inside the tank 201, thereby drawing sewage into the tank 201 through the sewage passage 202. In one embodiment, a filter (not shown) is provided at the outlet 221 of the gas outflow channel 218. The filter element can filter out fine solid waste in the air to prevent waste blockage at the motor 14. The filter element can be, for example, a HEPA element to increase the filtering effect.

In another embodiment, a cyclonic separating structure 260 is provided within the gas outflow passage 218. When the gas flows through the cyclone structure 260, the cyclone structure 260 separates a portion of the solid garbage carried by the gas, and the rest of the solid garbage is filtered by the filter. The cyclonic separating structure 260 may be integrally formed with the cover 216 to facilitate cleaning thereof. In addition, through setting up cyclone structure 260, reduced the work load of filtering a piece, reduced the frequency of the maintenance or the change of filtering a piece, made things convenient for the user to use cleaning device 1.

Fig. 4 schematically shows the structure of the partition plate 203. As shown in fig. 4, a first hole group 301 is configured on the partition plate 203. The reverse flow prevention structure 30 includes a reverse flow prevention valve 302 installed on the partition plate 203 corresponding to the first orifice group 301. Check valve 302 is in lower volume 205 and communicates with upper volume 204 through first set of holes 301. In addition, at least a first portion (for example, indicated by reference numeral 206 in fig. 3) of the edge of the partition plate 203 is in sealing contact with the side wall of the case 201. In one embodiment, a sealing ring may be provided between the edge of the divider plate 203 and the side wall of the tank 201 to achieve sealing contact therebetween. With this structure, when the shaft 10 is flattened, the check valve 302 prevents the sewage in the lower space 205 from flowing therethrough into the upper space 204; in addition, the seal between the edge of the partition plate 203 and the side wall of the tank 201 prevents the sewage in the lower space 205 from entering the upper space 204. In this way, sewage is prevented from being sucked into the motor 14 and the cleaning apparatus 1 can be used flat. In addition, when the sewage tank 20 is cleaned and the partition plate 203 is taken out of the tank body 201, the first hole group 301 filters out solid waste in the sewage, that is, the sewage is stored in the tank body 201, and the solid waste is carried on the partition plate 203, thereby realizing separation of the solid waste from the sewage. The solid garbage can be independently poured into the garbage basket, and the sewage can be poured into the discharge device such as the closestool or the water tank, so that the blockage of the discharge device such as the closestool or the water tank can be effectively prevented. In addition, the partition plate 203 with the first hole group 301 and the check valve 302 has a simple structure, a simple manufacturing process and a low cost, and is convenient to use in the cleaning apparatus 1.

FIG. 5 schematically illustrates a check valve 302 according to an embodiment of the present application. As shown in fig. 3 and 5, the check valve 302 includes a fitting 303 and a flexible, flat-ported valve body 304. The joint 303 is mounted on the partition plate 203 corresponding to the first hole group 301. To facilitate the installation of the check valve 302, in the embodiment shown in fig. 3, a conduit 208 is configured on the lower surface of the partition plate 203 corresponding to the first hole group 301, and a joint 303 is connected to the conduit 208. Fitting 303 may be configured to be resilient to facilitate fitting over catheter 208 and optionally secured with a fastener such as a clamp. The connector 303 and the conduit 208 may also be flanged together. Of course, those skilled in the art can also use other methods to mount the check valve 302 on the separation plate 203, and the description is omitted here.

The flexible flat valve body 304 may be made of rubber or the like, and the joint 303 may be made of the same material as the flat valve body 304 in the case of elasticity. The outer surface of the flat valve body 304 is configured as a flat surface 305, and the flat surface 305 will cause the flat valve body 304 to close under the pressure of the external environment. When the cleaning apparatus 1 is used in an upright state, as shown in fig. 6, the pressure P1 of the sewage in the upper space 204 acts on the flat valve body 304 to open the flat valve body 304, and the sewage flows into the lower space 205 and is stored therein. When the cleaning apparatus 1 is used in a flat position, as shown in fig. 7, the pressure P2 of the sewage in the lower space 205 acts on the outer surface 305 of the flat valve body 304 and closes the flat valve body 304, thereby preventing the sewage in the lower space 205 from flowing out of the flat valve body 304. At this time, the water temporarily stored in the upper space 204 is concentrated at the partition plate 203 away from the inlet 219 of the gas outflow passage 218, and the amount of water is small and is not drawn out of the cabinet 201, thereby greatly reducing the possibility of the motor 14 stalling or being damaged. It will also be appreciated that in the event that there is no or only a small amount of waste water in the lower space 205 so that the check valve 302 is not closed when the cleaning apparatus 1 is used flat, the sucked-in waste water will be temporarily stored in the upper space 204 and near the partition plate 203 (part of the waste water may flow into the lower space 205) and will not be drawn out of the tank 201, whereby the motor 14 will not be stopped or damaged.

In another embodiment, the check valve 302 may also be an elastic valve sheet 309 (shown in fig. 8) disposed on the lower surface of the separation plate 203 corresponding to the first hole group 301. When the cleaning apparatus 1 is used in an upright state, the elastic valve sheet 309 is pushed away toward the lower space 305 by the pressure of the sewage in the upper space 204 (as shown by a dotted line in fig. 8), and the sewage flows into the lower space 205 and is stored therein. When the cleaning apparatus 1 is flattened, the sewage in the lower space 305 presses the elastic valve sheet 309 against the partition plate 203 and closes the first hole group 301, which prevents the sewage in the lower space 205 from flowing out through the first hole group 301.

It should be understood that other types of check valves may be substituted for the check valve 302 shown in fig. 5, as long as they perform the same function as the check valve 302, which is well known to those skilled in the art and will not be described in detail.

In order to easily remove the partition plate 203 from the case 201, the partition plate 203 is detachably mounted in the case 201. In one particular embodiment (as shown in fig. 4), a handle 207 is configured on the divider panel 203, the handle 207 extending toward the opening of the box 201. Therefore, when the sewage tank 20 is cleaned, the handle 207 can be lifted up to conveniently lift the partition plate 203 out of the tank body 201, and meanwhile, the solid garbage can be taken out of the tank body 201, so that the solid garbage and the sewage can be separated.

In other embodiments, the divider plate 203 may be directly connected to the cover 216. When the cover 216 is removed, the partition plate 203 is removed at the same time. This can prevent a situation in which the sewage and the solid waste are mixed again due to forgetting to remove the partition plate 203 when the sewage is poured.

In another embodiment, the separation plate 203 is a cambered plate that is convex toward the lower space 205, and the first hole group 301 is offset from the lowest point of the separation plate 203. With this configuration, the solid waste will collect at the lowest point of the partition plate 203, thereby reducing the chance of the first hole group 301 being clogged with the solid waste, which further facilitates the use of the cleaning apparatus 1 by the user.

As shown in fig. 4, a second hole group 210 is further formed in the partition plate 203, and the second hole group 210 freely penetrates the upper space 204 and the lower space 205. In use, sewage may flow into the lower space 205 through the first set of holes 301, and air in the lower space 205 may flow to the upper space 204 through the second set of holes 210 and be further drawn away by the motor 14, which allows sewage to flow smoothly out of the lower space 205. It should be understood that still some of the contaminated water may flow from the second group of holes 210 into the lower space 205. In addition, the second hole group 210 can also filter the solid garbage when the separation plate 203 is taken out of the box 201, and the detailed description is omitted.

The second hole group 210 is offset from the first hole group 301 in the circumferential direction of the partition plate 203. Thus, when the cleaning apparatus 1 is used in a flat position, the check valve 302 is closed, and the sewage in the lower space 205 does not flow out through the second hole group 210. In a particular embodiment, the first set of holes 301 is diametrically opposed to the second set of holes 210. Thus, even if there is a large amount of sewage in the lower space 205, it does not flow out through the second hole group 210. This further facilitates the use of the cleaning device 1 by the user.

It should be understood that, in order to prevent the sewage from flowing out of the lower space 205 when the cleaning apparatus 1 is used in an inclined manner, it is also possible to construct only the second hole group 210 on the partition plate 203 without providing the first hole group, as long as the cleaning apparatus 1 is provided so as not to be inclined in the direction of the second hole group 210.

It should also be understood that where the separation plate 203 is configured as a cambered plate, the second hole set 210 is also offset from the lowest point of the separation plate 203. In this way, the chance of the second hole group 210 becoming clogged with solid waste is reduced, thereby facilitating the use of the cleaning apparatus 1 by the user.

As also shown in fig. 4, a blocking wall 211 is provided upright along the circumferential direction of the partition plate 203, the blocking wall 211 extending at least into the upper space 204. The blocking wall 211 prevents the solid waste from falling down into the tank 201 when the partition plate 203 is lifted out of the tank 201. In another embodiment, a drainage hole may be formed in the blocking wall 211, so that not only the solid waste is prevented from falling, but also the sewage is discharged into the tank 201 as much as possible, thereby improving the separation effect of the solid waste from the sewage. In a specific embodiment, the holder 212 may be erected along the circumference of the separation plate 203, and then the strainer 213 may be provided at the holder 212, thereby forming the blocking wall 211 with the drainage holes.

In addition, in the case of the blocking wall 211, the handle 207 may be connected to the blocking wall 211 or may be integrally formed with the blocking wall 211, which will not be described herein.

As also shown in fig. 3 and 4, a fitting hole 214 is also provided on the partition plate 203. The mounting holes 214 are offset from the first and second hole sets 301, 210. The sewage channel 202 is configured as a sewer pipe and extends from the lower space 205 up through the fitting hole 214 to the upper space 204. Thus, the partition plate 203 can be easily fitted into the case 201. In a particular embodiment, the fitting hole 214 is in sealing contact with the waste pipe 202 (e.g. a sealing ring may be provided) to prevent waste water from flowing out of the lower space 205 when the cleaning device 1 is laid flat.

In an embodiment not shown, the sewage channel 202 can also be configured with its sewage opening on the side wall of the tank 201 and communicating with the upper space 204. In yet another embodiment, not shown, a top wall is provided on the top of the box 201, a pouring opening is opened on the top wall, and the cover 216 covers the pouring opening; in this case, the sewage opening of the sewage passage 202 is opened on the top wall of the tank 201 and communicates with the upper space 204.

In one embodiment, as shown in fig. 2, the sewage pipe 202 is integrally formed with the tank 201, for example, by injection molding, and is easy and convenient to manufacture. In other embodiments, the waste pipe 202 and the tank 201 may be separated, so that the waste pipe 202 can be detached from the tank 201 to clean the waste pipe 202 and/or the tank 201 completely when necessary. In the case that the sewage pipe 202 and the tank 201 are of a split structure, they may be screwed or sealed and snapped together.

In another embodiment, an annular baffle 215 is disposed along the mounting aperture 214, the annular baffle 215 extending into the upper space 204. With this arrangement, the sewage pipe 202 extends through the annular baffle 215, so that, when the cleaning apparatus 1 is tilted or laid flat, the partition plate 203 (together with the blocking wall 211) does not become skewed within the tank 201, and the backflow preventing structure 30 on the partition plate 203 remains in its original position, thereby ensuring that sewage does not flow out of the lower space 205 via the backflow preventing structure 30.

As shown in fig. 3, an adapter tube 217 is provided in the case 201, and the cover 216 abuts against the adapter tube 217. Under the support of lid 216, adaptor pipe 217 is more stable, can not take place to rock because of the impact of the sewage that comes from sewage pipe 202, also does so under the circumstances that sewage flow rate is fast.

The inlet 223 of the adaptor tube 217 is aligned with the waste outlet 224 of the waste pipe 202 and the outlet 220 of the adaptor tube 217 is offset from the cover 216. For example, the adapter tube 217 is closed towards the end of the cover 216, and the outlet 220 is provided on the side wall of the adapter tube 217. The movement path of the water-gas mixture in the box body 201 can be prolonged, and the gas-water separation effect is improved; furthermore, the risk of water being drawn into the gas outflow channel 218 and thus reaching the motor 14 is reduced, thereby increasing the service life of the cleaning device 1. In another specific embodiment, the outlet 220 of the adapter tube 217 is circumferentially offset from the inlet 219 of the gas outflow passage 218. For example, the outlet 220 of the adapter tube 217 is opposite to the inlet 219 of the gas outflow passage 218 in the radial direction, and the height of the outlet 220 is lower than that of the inlet 219, which increases the distance between the outlet 220 and the inlet 219 to the maximum extent, prolongs the movement path of the water-gas mixture in the box 201, and improves the gas-water separation effect.

In one embodiment, the adapter tube 217 is a unitary structure with the waste pipe 202, i.e., the adapter tube 217 is part of the waste pipe 202. In this case, the adapter tube 217 is a straight tube and has a diameter less than or equal to the diameter of the waste pipe 202 to facilitate passage through the fitting hole 214 of the partition plate 203.

In another embodiment, the adaptor tube 217 is a separate structure from the waste pipe 202, i.e., the adaptor tube 217 may be manufactured separately and then assembled with the waste pipe 202. In this way, the sewage pipe 202 can be manufactured as a straight pipe, and the size relationship between the adapter tube 217 and the assembly hole 214 does not need to be considered, so that the manufacturing of the sewage pipe 202 and the adapter tube 217 is simplified.

As also shown in fig. 3, a water level probe group 40 is provided on the cover body 216, and the water level probe group 40 extends toward the lower space 205. The water level probe set 40 is used to monitor the sewage level in the water tank 201. When the water level in the water tank 201 reaches a preset threshold, the motor 14 stops rotating and alerts the user. In one embodiment, the water level probe set 40 is a bipolar water level probe. In further embodiments, the water level probe set 40 may also employ a single-pole water level probe, or other forms of water level probes. This is well known to those skilled in the art and will not be described in detail here.

Fig. 9 schematically shows a water level probe set 40. As shown in fig. 3 and 9, the water level probe set 40 includes a first probe set 401 and a second probe set 402 extending toward the lower space 205. The extension length of the first probe set 401 is greater than the extension length of the second probe set 402. The second set of holes 402 extends into the headspace 204 and is directly above the first set of holes 301. The first probe group 401 is used to monitor the water level in the water tank 201 when the cleaning apparatus 1 is used upright; when the water level in the water tank 201 reaches a preset threshold, the motor 14 will stop rotating and alert the user. The second probe set 402 is used to monitor the water level in the water tank 201 when the cleaning apparatus 1 is used flat. When the water level detected by the second probe set 402 reaches a predetermined threshold, the motor 14 will stop rotating and alert the user. As described above, when the cleaning apparatus 1 is used in a flat state, the backflow preventing structure 30 provided on the partition plate 203 prevents the sewage in the lower space 205 from flowing backward into the upper space 204 therethrough, so that the motor 14 does not stop and the cleaning apparatus 1 can still perform a cleaning operation normally. At this time, the sewage sucked into the upper space 204 is accumulated in the upper space 204 at the partition plate 203. When the amount of sewage accumulated in the upper space 204 is too large and flows toward the cover 216, the sewage first flows to the second probe group 402. The second set of probes 402 will generate a signal instructing the motor 14 to stop rotating, thereby preventing sewage from being drawn to the motor 14 and causing damage to the motor 14. Therefore, the water level in the tank 201 can be monitored in real time by arranging the first probe group 401 and the second probe group 402, so that the sewage is prevented from being sucked into the motor 14, and the motor 14 is prevented from being damaged. This greatly extends the service life of the cleaning device 1.

In one embodiment, the first set of probes 401 extends into the lower space 205. In other words, the first probe angle 401 extends through the separation plate 203 to the lower space 205. Thus, the first probe set 401 detects the threshold water level before the sewage level in the tank 201 reaches the partition plate 203, so that the motor 14 stops rotating. This further prevents sewage from being sucked into the motor 14, extending the life of the cleaning apparatus 1. The depth of the first probe group 401 into the lower space 205 can be adjusted by those skilled in the art according to the actual situation, and will not be described in detail here.

In another embodiment, the first probe set 401 may also be located within the upper space 204 and near the separation plate 203. According to this structure, when the partition plate 203 is clogged, the sewage level in the lower space 205 is low, and the sewage accumulates in the upper space 204, the first probe set 401 can accurately monitor the sewage level, preventing the sewage from being sucked into the motor 14. The position of the first probe set 401 in the upper space 205 can be adjusted by those skilled in the art according to practical situations, and will not be described herein. In addition, those skilled in the art may also extend the first probe set 401 into the lower space 205, or into the upper space 204, or provide the first probe set 401 in both the upper space 204 and the lower space 205, according to the actual situation, and the description is omitted here.

In another embodiment, the second set of probes 402 is above the outlet 220 of the adaptor tube 217. This prevents the sewage from being directly sprayed onto the second probe set 402, reducing the possibility of erroneous judgment.

As also shown in fig. 3 and 9, a pair of baffles 403 are also configured on cover 216 to extend into upper space 204, and the baffles 403 are circumferentially spaced. The side edges 405 of each baffle 403 are spaced apart at least in part by the side walls of the box 201. The waste outlet 224 of the waste pipe 202 is between the baffles 403. The baffle plate 403 can guide the sewage splashed thereon to flow downward, and avoid the sewage from splashing around in the tank 201, which adversely affects the use feeling of the cleaning apparatus 1. In addition, air sucked into the box body 201 from the sewage pipe 202 can reach the inlet 219 of the air outflow channel 218 on the cover body 216 by bypassing the baffle plate 403, so that the movement path of the water-air mixture is more tortuous, the movement path of the water-air mixture in the box body 201 is prolonged, and the air-water separation effect is improved. As also shown in fig. 9, a second set of probes 402 may also be positioned between the pair of flow plates 403. This makes the structure of the cover body 216 more compact, facilitating reduction of the radial dimension of the sump 20, whereby the cleaning apparatus 1 is more compact and flexible, facilitating cleaning of narrow spaces.

In a particular embodiment, an upper region 406 of the side edge 405 of the baffle 403 is in contact with the side wall of the tank 201, a lower region 407 is spaced apart from the side wall of the tank 201, and the sewage outlet 224 of the sewage pipe 202 is disposed to correspond to the upper region 406 of the side edge 405. By the structure, the baffle plate 403 can not only prevent sewage from splashing everywhere in the box 201, but also force the water-gas mixture to baffle downwards to cross the baffle plate 403, so that the movement path of the water-gas mixture in the box 201 is longer, and the gas-water separation effect is better.

In addition, a back plate 404 is formed on the cover body 216, and the back baffle 404 is located at the radial opposite side of the sewage outlet 224 of the sewage pipe 202 and is connected with the baffle 403 at both ends. The inlet 219 of the gas outflow channel 218 is radially outside the backing plate 404. With this structure, the water-gas mixture must flow downward over the back plate 404 to reach the inlet 219 of the gas outflow passage 218, which also helps to extend the movement path of the water-gas mixture in the tank 201, and the gas-water separation effect is better. In a particular embodiment, the back plate 404 has a length that is less than the length of the baffle 403. This prevents the baffle 403 and the back plate 404 from excessively blocking the path of the water-air mixture, and the cleaning apparatus 1 can be used with smooth air flow and good feeling. Those skilled in the art can construct the extension length of the back plate 404 in the box 201 according to actual conditions.

In the case where the adapter tube 217 is separate from the sewage pipe 202, a water baffle (not shown) may be provided above the outlet 220 of the adapter tube 217 and below the second probe group 402. The water guard plate is in contact with the sidewall of the tank 201. In this way, the water baffle separates the second probe group 402 from the outlet 220 of the adaptor tube 217, thereby more effectively preventing the sewage from being directly sprayed onto the second probe group 402 and further reducing the possibility of misjudgment.

Different use scenarios of the cleaning apparatus 1 are described below.

Scene 1:

in upright use of the cleaning device 1, as shown in fig. 1, the motor 14 is rotated and, after the water injection system has been activated, fresh water is sprayed from the fresh water tank 15 to the floor. Sewage is sucked into the upper space 204 of the tank 201 through the sewage passage 202 (i.e., the sewage pipe 202). The sewage flows into the lower space 205 through the first hole group 301 (and the check valve 302) and the second hole group 210 on the partition plate 203 to be stored. The solid waste in the sewage is filtered by the partition plate 203 and remains in the upper space 204. When the first probe set 401 detects that the sewage level in the tank 201 reaches the threshold value, the motor 14 stops rotating and reminds the user.

Scene 2:

as shown in fig. 11, when the cleaning apparatus 1 is used in a flat state, the sewage in the lower space 205 is held in the lower space 205 by the reverse-flow preventing structure 30 on the partition plate 203. The motor 14 is rotated, and after the water spraying system is started, clean water is sprayed from the clean water tank 15 to the ground, and sewage is sucked into the upper space 204 of the tank body 201 through the sewage passage 202 (i.e., the sewage pipe 202). At this time, the sewage is temporarily stored in the upper space 204, the motor 14 rotates normally, and the cleaning apparatus 1 is used normally.

When the second probe set 402 detects that the wastewater level temporarily stored in the upper space 204 reaches a threshold value, the motor 14 stops rotating and alerts the user.

When the cleaning apparatus 1 is erected, the waste water temporarily stored in the upper space 204 flows into the lower space 205 through the first hole set 301 (and the check valve 302) and/or the second hole set 210.

It should be understood that the above-mentioned examples are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the present application. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims (10)

1. A sump (20) for a cleaning device (1), comprising: the cleaning device comprises a box body (201), wherein a sewage channel (202) communicated with the cleaning device (1) is formed in the box body (201);

the method is characterized in that:

a partition plate (203) is arranged in the box body (201), and the partition plate (203) divides the inner space of the box body (201) into an upper space (204) and a lower space (205); -the sewage channel (202) extends from the lower space (205) up through the partition plate (203) to the upper space (204);

the separation plate (203) is provided with a backflow preventing structure (30), sewage entering an upper space (204) of the box body (201) from the sewage channel (202) can enter the lower space (205) at least through the backflow preventing structure (30) to be stored, and the backflow preventing structure (30) prevents sewage in the lower space (205) from flowing through the backflow preventing structure to enter the upper space (204).

2. Sump according to claim 1, characterized in that at least a first portion (206) of the edge of the partition plate (203) is in sealing contact with the side wall of the tank body (201), a first set of holes (301) being provided in the partition plate (203),

the backflow prevention structure (30) includes a backflow prevention valve (302) installed on the partition plate (203) in the lower space (205) in correspondence to the first hole group (301), the backflow prevention valve (302) communicating with the upper space (204) through the first hole group (301),

sewage from the upper space (204) may be stored in the lower space (205) at least via the first set of holes (301) and the anti-reverse valve (302), the anti-reverse valve (302) preventing sewage in the lower space (205) from flowing therethrough into the upper space (204);

preferably, the check valve (302) comprises a joint (303) and a valve body (304) deformable under pressure, the joint (303) being mounted on the separation plate (203),

the check valve (302) is configured such that sewage from the upper space (204) can flow into the lower space (205) to be stored by opening the valve body (304); -said valve body (304) being closable by the pressure of the sewage in said lower space (205) on its outer surface, thereby preventing the sewage in said lower space (205) from flowing therethrough into said upper space (204);

preferably, the valve body (304) is a flexible, flat-ported valve body.

3. The waste water tank according to claim 2, wherein a second hole group (210) is further configured on the partition plate (203), the second hole group (210) being offset from the first hole group (301) in the circumferential direction of the partition plate (203),

the second hole group (210) freely penetrates the upper space (204) and the lower space (205);

preferably, the first set of holes (301) is diametrically opposed to the second set of holes (210);

preferably, the separation plate (203) is a cambered plate protruding towards the lower space (205), the first set of holes (301) and/or the second set of holes (210) being offset from the lowest point of the separation plate (203).

4. The waste water tank as claimed in claim 1 or 2, wherein a blocking wall (211) is provided upright along the circumferential direction of the partition plate (203), the blocking wall (211) extending at least into the upper space (204);

preferably, a handle is formed on the separating panel, said handle extending towards the opening of the box (201).

5. The waste tank as claimed in claim 3, wherein a fitting hole (214) is further provided on the partition plate (203), the fitting hole (214) being offset from the first and second hole groups (301, 210), the waste channel (202) being configured as a waste pipe extending upwardly from the lower space (205) through the fitting hole (214) to the upper space (204);

preferably, an annular baffle plate (215) is arranged along the assembly hole (214), and the annular baffle plate (215) extends into the upper space (204).

6. The waste water tank as claimed in claim 2, wherein a cover body (216) is arranged at the opening at the top of the tank body (201), an adapter tube (217) is arranged in the tank body (201), the cover body (216) is abutted against the adapter tube (217),

the inlet (223) of the adapter tube (217) is aligned with the sewage outlet (224) of the sewage pipe (202), and the outlet (220) of the adapter tube (217) is deviated from the cover body (216);

preferably, the adapter tube (217) and the sewage tube (202) are of an integrated structure or a split structure;

preferably, a gas outflow channel (218) is provided on the cover (216), an inlet (219) of the gas outflow channel (218) communicating with the upper space (204) and being offset in the circumferential direction from an outlet (220) of the adapter tube (217), a filter being provided at an outlet (221) of the gas outflow channel (218).

7. The wastewater tank according to claim 6, characterized in that a water level probe group (40) is provided on the cover body (216), the water level probe group (40) extending toward the lower space (205);

preferably, the water level probe set (40) includes a first probe set (401) and a second probe set (402) extending toward the lower space (205),

the second set of probes (402) extends into the headspace (204) and directly above the first set of holes (301), the first set of probes (401) having a greater extension than the second set of probes (402);

preferably, the first set of probes (401) extends into the lower space (205).

8. Waste tank according to claim 6 or 7, characterized in that the cover (216) is also constructed with a pair of baffles (403) extending into the upper space (204) and being circumferentially spaced apart, at least a partial region of the side edge (405) of each baffle (403) being spaced apart from the side wall of the tank (201),

the sewage outlet (224) of the sewage pipe (202) is positioned between the baffle plates (403);

preferably, the cover body (216) is also provided with a back plate (404), the back plate (404) is arranged at the radial opposite side of the sewage outlet (224) of the sewage pipe (202), and two ends of the back plate are respectively connected with the corresponding baffle plates (403);

preferably, the extension of the back plate (404) is smaller than the extension of the baffle plate (403).

9. A cleaning device, characterized by comprising a shaft (10), a cleaning element (11) being mounted at a first end of the shaft (10), a handle (12) being configured at a second end of the shaft (10), a liquid treatment assembly (101) being mounted on the shaft (10), the liquid treatment assembly (101) comprising a waste tank (20) according to any one of claims 1 to 8.

10. Cleaning device according to claim 9, characterized in that a mounting region (250) for cooperation with the shaft (10) is configured on a circumferential outer surface of the housing (201),

the sewage tank (20) is arranged at the rear side of the shaft (10), and the backflow preventing structure (30) is far away from the mounting area (250) in the radial direction, or

The wastewater tank (20) is disposed at the front side of the shaft (10), and the backflow preventing structure (30) is radially adjacent to the installation region (250).

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