CN109805832B - Dirty liquid recovery subassembly and surface cleaning equipment - Google Patents
Dirty liquid recovery subassembly and surface cleaning equipment Download PDFInfo
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- CN109805832B CN109805832B CN201910238229.1A CN201910238229A CN109805832B CN 109805832 B CN109805832 B CN 109805832B CN 201910238229 A CN201910238229 A CN 201910238229A CN 109805832 B CN109805832 B CN 109805832B
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Abstract
The invention discloses a dirty liquid recovery assembly and surface cleaning equipment, wherein the assembly comprises a dirty liquid tank with a dirty liquid storage chamber inside, the dirty liquid storage chamber is provided with a liquid falling port and an exhaust port, and the dirty liquid is supplied to fall into the dirty liquid storage chamber downwards from the upper part of the dirty liquid storage chamber; a float positioned in the dirty liquid storage chamber; a plug movable up and down with the buoy, the plug being arranged to: the inside of dirty liquid case still is equipped with the stand-by chamber that is located dirty liquid and accomodates the room top, and the stand-by chamber is linked together with dirty liquid and accomodates the room, and the gas vent is located the junction of dirty liquid and stand-by chamber or is located dirty liquid and accomodates the room, and the stand-by chamber sets up to: when the dirty liquid tank is inclined downwards beyond a set angle, at least part of the standby chamber is positioned at the lower side of the exhaust port, and at least part of the dirty liquid stored in the dirty liquid storage chamber can flow back into the standby chamber. According to the scheme, the standby chamber capable of temporarily storing the dirty liquid when the dirty liquid tank is inclined or inverted is arranged on the dirty liquid recovery assembly, so that the dirty liquid is prevented from flowing to the outside of the dirty liquid storage chamber through the exhaust port.
Description
Technical Field
The invention relates to the technical field of surface cleaning equipment, in particular to a dirty liquid recovery assembly for recovering dirty liquid by utilizing vacuum suction force and surface cleaning equipment provided with the mechanism.
Background
In daily life, the vacuum dust collection device generates air flow entering the dust collection device from the dust inlet by using the suction unit, thereby completing the working process of sucking the dust-containing air flow into the dust collection device, separating and collecting dust in the dust-containing air flow, and discharging the separated air to the outside. Vacuum cleaning devices are not generally used for sucking water, because the water flow enters the machine body and damages the suction unit. Generally, water stains and the like remained on the ground are cleaned by means of cleaning tools such as a mop, a bucket and the like, but the water absorption effect of the mop is limited, the water absorption efficiency is low, the water stains on the ground are easily caused to expand the polluted area, and the cleaning effect is poor.
In the prior art, in order to wet clean a surface to be cleaned, some specialized wet cleaning apparatuses are provided, such cleaning apparatuses comprising a cleaning liquid delivery system that delivers cleaning liquid to the surface to be cleaned, and a dirty liquid recovery system that extracts spent cleaning fluid and debris (which may include dirt, dust, dirt, soil, hair, and other debris) from the surface. The cleaning liquid delivery system generally includes a liquid supply tank for storing the cleaning liquid, a liquid spray nozzle for applying the cleaning liquid to the surface to be cleaned, and a fluid supply conduit for delivering the cleaning liquid from the liquid supply tank to the liquid spray nozzle. An agitator may be provided for agitating the cleaning fluid over the surface. The dirty liquid recovery system generally includes a dirty liquid recovery tank, a suction inlet directed toward a surface to be cleaned and in fluid communication with the dirty liquid recovery tank via a working air conduit, and a suction source in fluid communication with the working air conduit for drawing cleaning fluid from the surface to be cleaned and discharging the cleaning fluid to the dirty liquid recovery tank via the suction inlet and the working air conduit.
Of the wet cleaning apparatuses described above, a typical apparatus can be seen in chinese patent publication No. CN206434268U, which discloses a surface cleaning apparatus comprising: a housing comprising an upright handle assembly and a base mounted to the upright handle assembly and adapted to be moved over a surface to be cleaned. The surface cleaning apparatus is further provided with a fluid delivery system comprising: a fluid dispenser; and at least one fluid delivery channel forming part of the fluid delivery path. The fluid delivery passageway may be formed by a portion of a suction nozzle assembly on the base.
Vacuum cleaners are a common household cleaning appliance that is used to adsorb dust and debris from a dry floor, and the vacuum cleaner is somewhat frustrating when it is not possible to work on wet floors with a dirty liquid or floors that require cleaning while spraying water. The reasons for its failure are mainly: dirt liquid is easily sucked into the interior of the vacuum cleaner, and the suction motor assembly in the interior of the vacuum cleaner is usually not waterproof, so that water vapor enters the interior of the motor assembly to damage the motor so that the motor cannot work normally.
A prior chinese patent application publication No. CN108478097a discloses a cleaner capable of attaching a cleaning accessory to perform wet cleaning, and a chinese published patent application publication No. CN104768439a also discloses a moisture absorbing accessory connected to a dry cleaner to perform cleaning. The accessories in the two documents realize the expansion of the application range of the dust collector using the common dry vacuum motor, but when the handle part is inclined backwards at a larger angle, the dirty liquid of the dirty liquid tank flows to the exhaust port to influence the application.
Disclosure of Invention
In order to solve the above technical problems, a first object of the present invention is to provide a dirty liquid recovery assembly with good dirty liquid recovery effect. A second object of the present invention is to provide a surface cleaning apparatus with such a dirty liquid recovery assembly.
In order to achieve the first object of the invention, the present invention adopts the following first technical scheme: a contaminated fluid recovery assembly comprising:
a dirty liquid tank having a dirty liquid storage chamber therein, the dirty liquid storage chamber having a liquid drop port through which dirty liquid falls into the dirty liquid storage chamber from an upper portion of the dirty liquid storage chamber, and an air discharge port through which air escapes from the dirty liquid storage chamber;
the buoy is positioned in the dirty liquid storage chamber and can float up and down along with the change of the liquid level in the dirty liquid storage chamber;
a plug movable up and down with the float, the plug being arranged to: when the buoy moves upwards to a set full-liquid position, the plug moves to the air vent and seals the air vent;
the inside of dirty liquid case still be provided with and be located the standby chamber of dirty liquid accommodating chamber top, the standby chamber with dirty liquid accommodating chamber be linked together, the gas vent be located dirty liquid accommodating chamber with the junction of standby chamber or be located entirely in dirty liquid accommodating chamber, the standby chamber set up into: when the dirty liquid tank inclines to exceed a set angle, at least part of the standby chamber is positioned at the lower side of the exhaust port, and at least part of the dirty liquid stored in the dirty liquid storage chamber can flow back into the standby chamber.
In the above first technical solution, preferably, an exhaust pipe is disposed inside the dirty liquid tank, the exhaust pipe passes through the standby chamber, the lower part of the exhaust pipe is connected to the exhaust port, and the upper part of the exhaust pipe is communicated with the outside of the dirty liquid tank.
In the above first technical solution, preferably, the assembly further includes a dirty liquid inlet pipe for air and dirty liquid to flow into the dirty liquid storage chamber, at least a part of the dirty liquid inlet pipe passes through the dirty liquid storage chamber, the dirty liquid inlet pipe has an inlet end and an outlet end above the inlet end, and the liquid dropping port is located at the lower side of the outlet end. Further preferably, a shielding cover is arranged in the dirty liquid tank, the shielding cover is positioned right above the outlet end of the dirty liquid inlet pipe, and air flowing out from the outlet end of the dirty liquid inlet pipe and at least part of dirty liquid collide with the inner wall surface of the shielding cover and then fall to the liquid falling port. Still further preferably, the lower portion of the shielding cover has an open structure, and the outlet end of the dirty liquid inlet pipe extends upward to the inner side of the shielding cover.
Or further preferably, a mounting frame is arranged in the sewage tank, the mounting frame is positioned at the junction of the sewage storage chamber and the standby chamber, and the shielding cover is fixedly arranged on the mounting frame. Still more preferably, the float and the plug are integrally fixed and are mounted on the mounting frame so as to be movable up and down.
In order to achieve the second object of the invention, the present invention adopts the following second technical scheme: a surface cleaning apparatus comprising:
a cleaning head adapted to be moved over a surface to be cleaned, said cleaning head having a suction opening for sucking a dirty liquid into said cleaning head together with air and a liquid spray nozzle for outputting the cleaning liquid;
an upstanding portion, a lower portion of the upstanding portion being rotatably connected to the cleaning head;
the cleaning liquid supply assembly comprises a cleaning liquid tank which is arranged on the vertical part and communicated with the liquid spraying nozzle;
the dirty liquid recovery assembly according to any one of the first and preferred aspects, wherein the liquid drop port is in fluid communication with the suction port, and the dirty liquid tank is provided on the upright portion;
a hand-held vacuum cleaner comprising an air inlet stub, a dust collection barrel in airflow communication with said air inlet stub, and a suction motor in fluid communication with said dust collection barrel, said hand-held vacuum cleaner being capable of being removably in fluid communication with said upright portion; when the hand-held vacuum cleaner is connected with the vertical part, the air inlet of the dust collection barrel is communicated with the air outlet, and air and sewage mixed fluid enters the cleaning head part from the suction port and further flows into the sewage recovery assembly under the action of the suction motor.
In the second aspect, preferably, the upright portion includes a hollow rigid pipe at a top portion, and the hollow rigid pipe can be used to detachably couple an upper end portion of the upright portion to an air intake nozzle of the hand-held vacuum cleaner.
In the second aspect, preferably, the cleaning head is provided with a rolling brush chamber and a rolling brush installed in the rolling brush chamber, and the liquid spray nozzle can spray the cleaning liquid onto at least one of the rolling brush and the surface to be cleaned.
Compared with the prior art, the invention has the following beneficial effects: through be provided with one on dirty liquid recovery unit and can be when dirty liquid tank slope or inversion can temporarily store the standby chamber of dirty liquid to avoid dirty liquid to flow to dirty liquid through the gas vent and accomodate the room outside, this scheme can increase the safety in utilization of dirty liquid recovery unit, improves user's use comfort.
Drawings
FIG. 1 is a schematic perspective view of a surface cleaning apparatus of the present invention;
FIG. 2 is a schematic front cross-sectional view of the surface cleaning apparatus of the present invention;
FIG. 3 is an enlarged schematic view of the cleaning head of FIG. 2;
FIG. 4 is a schematic diagram of the dirty liquid tank of the present invention in a disassembled state;
FIG. 5 is a schematic cross-sectional view of the dirty liquid tank of the present invention;
FIG. 6 is a schematic diagram showing the flow of the sewage and air in the sewage tank when the sewage tank is in operation when the backward inclination angle of the sewage tank is smaller;
FIG. 7 is a schematic diagram showing the flow of the sewage and air in the sewage tank when the sewage tank is operated when the backward inclination angle of the sewage tank is larger;
FIG. 8 is a schematic view of the flow of dirt and air within the dirt tank when the surface cleaning apparatus of the present invention is in operation and the angle of rearward inclination of the upright is small;
fig. 9 is a schematic flow diagram of the dirty liquid and air inside the dirty liquid tank when the surface cleaning apparatus of the present invention is in operation with the upright portion in a position approximately parallel to the horizontal plane.
Wherein: 100. a surface cleaning apparatus; 1. a cleaning head device; 3. a hollow hard tube; 4. a hand-held vacuum cleaner; 10. cleaning the head; 20. an upright portion; 21. a lower connector; 22. a dirty liquid tank; 23. a cleaning liquid tank; 40. an air inlet short pipe; 41. a dust collection barrel; 42. a suction motor; 43. a rechargeable battery pack; 44. holding a handle; 11. an upper cover; 12. a bottom plate; 17. a cavity; 18. a contaminated liquid recovery pipeline; 13. a rolling brush chamber; 14. a rolling brush; 15. a suction port; 16. a gap; 221. a dirty liquid tank; 222. a dirty liquid tank upper cover; 28. a mounting frame; 24. a buoy; 27. a plug; 26. a shielding cover; 220. a contaminated liquid storage chamber; 223. a standby chamber; 241. a buoy body; 2411. an outer peripheral wall surface; 2412. an inner peripheral wall surface; 2413. an upper surface; 2414. a lower surface; 25. a dirty liquid inlet pipe; 224. an exhaust pipe; 251. an inlet end; 252. an outlet end; 242. a gap; 2201. a liquid falling port; 2202. and an exhaust port.
Description of the embodiments
In order to describe the technical content, constructional features, objects and effects of the invention in detail, reference will be made to the following detailed description of embodiments thereof with reference to the accompanying drawings.
Fig. 1 is a perspective view showing a surface cleaning apparatus 100 according to an embodiment of the present invention, which surface cleaning apparatus 100 can perform a process of spraying a cleaning liquid onto a surface to be cleaned while sucking a contaminated liquid on the surface to be cleaned together with air into the interior of a machine, i.e., has functions of both a cleaner and a floor scrubber. The surface cleaning apparatus 100 comprises three parts, namely a cleaning head device 1, a hollow wand 3 and a hand-held vacuum cleaner 4, which are detachable, and which are in fluid and electrical communication after assembly. For purposes of description with respect to the figures, the terms "upper," "lower," "right," "left," "rear," "front," "vertical," "horizontal," "inner," "outer," and derivatives thereof shall relate to a perspective from a user behind the surface cleaning apparatus 100 (as oriented in fig. 1) that defines the rear of the surface cleaning apparatus 100.
As shown in fig. 2, the cleaning head device 1 comprises a cleaning head 10 adapted to be moved over a surface to be cleaned and an upright 20 which is pivotally connected to the cleaning head 10 at a lower portion. The upright portion 20 includes a lower connector 21 rotatably connected to the cleaning head 10, a dirty liquid recovery assembly for recovering dirty liquid, and a cleaning liquid supply assembly. The dirty liquid recovery assembly includes a dirty liquid tank 22 or the like, and the clean liquid supply assembly includes a clean liquid tank 23 or the like for storing clean liquid. The dirty liquid tank 22 and the clean liquid tank 23 are both detachably arranged, and the clean liquid tank 23 is located above the dirty liquid tank 22. In this case, the upper rear part of the upright portion 20 is formed with a mounting groove adapted to accommodate the cleaning liquid tank 23. The hand-held vacuum cleaner 4 comprises an intake nipple 40, a dust collection tub 41 in air flow communication with the intake nipple 40, a suction motor 42 for providing suction power, a rechargeable battery pack 43 that can be used to power the vacuum motor arrangement 42, and a grip handle 44. The inlet neck 40 of the hand-held vacuum cleaner 4 can be detachably coupled to the upper end of the upright portion 20 of the cleaner head assembly 1 by means of the hollow wand 3. In other embodiments, the inlet neck 40 of the hand-held vacuum cleaner may also be removably coupled directly to the upright portion 20 of the cleaner head assembly 1.
As shown in fig. 3, the cleaning head 10 comprises a housing formed by an upper cover 11 and a base plate 12, the upper cover 11 and the base plate 12 being clamped and defining therebetween a partially enclosed cavity 17, the cavity 17 being adapted to receive a portion of the cleaning liquid delivery line and to receive a dirty liquid recovery line 18. The housing further includes a rolling brush chamber 13, a rolling brush 14 is installed in the rolling brush chamber 13, a liquid spraying nozzle (not shown) capable of spraying cleaning liquid to the rolling brush 14 is installed in the rolling brush chamber 13, the liquid spraying nozzle is communicated with the cleaning liquid tank 23, and necessary pumps and the like (not shown) are arranged between the liquid spraying nozzle and the cleaning liquid tank 23. The bottom of the bottom plate 12 is provided with a suction port 15, part of brush hairs of the rolling brush 14 extend to the outside through the suction port 15, and a gap 16 is formed between the rolling brush 14 and the inner wall surface of part of the upper cover 11; as the roller brush 14 rotates over the surface to be cleaned, the bristles on the roller brush 14 pick up dirt and solid waste on the surface to be cleaned by friction with the surface to be cleaned and feed along with air through this gap 16 into the internal dirt liquid recovery circuit 18.
As shown in fig. 4, the dirty liquid tank 22 includes a dirty liquid tank body 221 and a dirty liquid tank upper cover 222 that covers over the dirty liquid tank body 221. The inside of the dirty liquid tank 22 is provided with a mounting bracket 28, and a buoy 24 and a plug 27 which can move up and down are mounted on the mounting bracket 28. A shield 26 is fixedly mounted on the mounting bracket 28.
As shown in fig. 5, a dirty liquid housing chamber 220 is provided in the dirty liquid tank 221, and a standby chamber 223 is provided in the dirty liquid tank upper cover 222. The standby chamber 223 vertically penetrates the contaminated fluid storage chamber 220. The mounting bracket 28 is located at the interface of the dirty liquid receiving chamber 220 and the standby chamber 223. The buoy 24 includes a buoy body 241. The buoy body 241 is a hollow closed structure. In this example, the float body 241 has a hollow ring shape and extends in the up-down direction. The float body 241 has an outer peripheral wall surface 2411, an inner peripheral wall surface 2412, and upper and lower surfaces 2413 and 2414 interposed between the inner and outer peripheral wall surfaces, the upper and lower surfaces 2413 and 2414 each being a slope surface gradually sloping downward from rear to front. The inside of the dirty liquid accommodating chamber 220 is provided with a hard dirty liquid inlet pipe 25, the dirty liquid inlet pipe 25 is used for conveying dirty liquid into the dirty liquid accommodating chamber 220 of the dirty liquid tank 22, the dirty liquid inlet pipe 25 extends from bottom to top and passes through the inside of the dirty liquid accommodating chamber 220, and a fluid inlet channel 250 for the dirty liquid and air to flow from bottom to top together is formed in the inside of the dirty liquid inlet pipe 25. An exhaust pipe 224 is provided in the standby chamber 223, and the exhaust pipe 224 passes through the standby chamber, and the exhaust pipe 224 can connect the contaminated liquid storage chamber and the exterior of the contaminated liquid tank. In this example, the contaminated fluid inlet pipe 25 is integrally provided with the contaminated fluid tank 221. The dirty liquid inlet conduit 25 includes an inlet end 251 and an outlet end 252. The float body 241 is sleeved outside the sewage inlet pipe 25, and the float body and the sewage inlet pipe are concentrically arranged. A gap 242 penetrating up and down is formed between the inner peripheral wall surface 2412 of the float body 241 and the outer tube wall surface of the dirty liquid inlet tube 25, and the gap 242 communicates with the dirty liquid storage chamber 220.
As further shown in fig. 5, the dirty liquid tank 22 is provided with a liquid drop port 2201 through which dirty liquid falls into the dirty liquid storage chamber 220 from above and an air discharge port 2202 through which air escapes from the dirty liquid storage chamber 220. The exhaust port 2202 is located at the junction between the contaminated liquid storage chamber 220 and the reserve chamber 223, and the lower portion of the exhaust pipe 224 is connected to the exhaust port 2202. The outlet end 252 of the dirty liquid inlet pipe 25 is located directly below the shielding cover 26 and faces the shielding cover 26, in this example, the shielding cover 26 is of a structure with an open lower part, a part of the outlet end 252 of the dirty liquid inlet pipe 25 extends into the inner side of the shielding cover 26, and dirty liquid and air flowing out of the outlet end 252 can collide with the inner wall surface of the shielding cover 26 to change the flow direction of fluid. The liquid drop port 2201 is located immediately below the shield 26, and the contaminated liquid that has collided with the shield 26 can drop downward through the liquid drop port 2201. In this example, since the liquid drop port 2201 is disposed directly above the gap 242, most of the dirty liquid dropped from the liquid drop port 2201 is enclosed by the float body 241 and enters the gap 242, and then falls to the bottom of the gap 242 and finally enters the dirty liquid storage chamber 220. In this example, the plug 27 is integral with the float 24, and when the float 24 moves up to a set position (i.e., at a set full liquid level), the plug 27 moves to the vent 2202 and blocks the vent 2202. In this case, the plug 27 is fixedly provided integrally with the float 24.
As shown in fig. 6, when the liquid level in the contaminated liquid storage chamber 220 is low or the angle at which the contaminated liquid tank 22 is inclined rearward is small, the contaminated liquid and air mixed together flow upward from the fluid inlet passage inside the contaminated liquid inlet pipe 25, flow out through the outlet end 252, and then the mixed fluid collides with the inner top surface of the shielding cover 26. Most of the dirty liquid falling through the liquid falling port 2201 falls into the gap 242 at the periphery of the buoy body 241, flows into the dirty liquid containing chamber 220 through the gap 242, and the small part of the dirty liquid is sputtered to the outside of the buoy body 241 and directly falls into the dirty liquid containing chamber 220; air escaping through the liquid drop 2201 flows upward and out of the dirty liquid chamber 220 through the air outlet 2202.
As shown in fig. 7, when the liquid level in the dirty liquid housing chamber 220 is high and the angle at which the dirty liquid tank 22 is inclined rearward is large, the dirty liquid stored in the dirty liquid housing chamber 220 may partially flow back into the upper standby chamber 223, thereby preventing the dirty liquid from being flushed out of the dirty liquid tank 22 directly through the exhaust port 2202.
The operation of the vacuum cleaner 100 is described below:
as shown in fig. 8, when the hand-held vacuum cleaner 4 is coupled to the upright portion 20 via the hollow wand 3, the inlet wand 40 communicates with the outlet duct 224. When the hand-held vacuum cleaner is opened, the upright portion 20 is inclined backward (at this time, the inclination angle is small), at this time, the upper surface 2413 and the lower surface 2414 of the float body 241 are downwardly close to the horizontal plane, the cleaning liquid in the cleaning liquid tank 23 is continuously supplied to the roller brush 14 and then applied to the surface to be cleaned by the rotating roller brush 14, the air and dirt mixture fluid is rolled up by the rotating roller brush and enters the cleaning head 10 from the suction port 15 by the suction of the vacuum motor device 42, then flows upward through the dirt liquid inlet pipe 25 in sequence, the air and dirt mixture fluid flowing in from the outlet end 252 of the upper portion of the dirt liquid inlet pipe 25 collide with the inner top surface of the upper shielding cover 26, the collided air and dirt liquid change the flowing direction, and the dirt liquid flows out from the liquid falling port 2201 of the lower side, the dirt liquid flows into the gap 242 of the lower side under the gravity, and enters the dirt liquid receiving chamber 220 through the lower side of the gap 242, the air is discharged upward from the dirt liquid receiving chamber 220 through the air outlet port 2202 and flows into the hollow hard pipe 224, and then enters the dust collector 40 through the air inlet pipe 3, and finally the dust collector 4 is discharged to the outside. As the level of the dirty liquid in the dirty liquid housing 220 increases, the float 24 in the dirty liquid housing 220 moves upwardly, thereby driving the plug 27 to move upwardly, and when the dirty liquid housing 220 increases to the set level, the plug 27 also moves to the air outlet 2202, thereby blocking the air outlet 2202, after which the suction port 15 stops sucking the dirty liquid and air, and the user will need to empty the dirty liquid tank 22 before continuing to operate the vacuum cleaner.
As shown in fig. 9, when the hand-held vacuum cleaner is turned on and operated, when the angle of the backward tilting of the upright portion 20 is large, the dirty liquid stored in the dirty liquid storage chamber 220 is partially poured into the upper standby chamber 223, and the air outlet 2202 can still normally operate, and when the dirty liquid storage chamber 220 rises to a set liquid level with further operation of the device, the plug 27 also moves to the air outlet 2202, so that the air outlet 2202 is blocked, and after that, the user will need to empty the dirty liquid in the dirty liquid tank 22 before continuing to operate the vacuum cleaner.
In the scheme, due to the existence of the standby chamber, when the dirty liquid tank is inclined at a large angle or is inverted up and down, the dirty liquid in the dirty liquid recovery chamber can be temporarily reserved in the standby chamber to effectively prevent the dirty liquid from flowing out of the exhaust port, so that the dirty liquid separation efficiency is ensured, and the handheld vacuum cleaner is safer to use.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (9)
1. A contaminated fluid recovery assembly comprising:
a dirty liquid tank having a dirty liquid storage chamber therein, the dirty liquid storage chamber having a liquid drop port through which dirty liquid falls into the dirty liquid storage chamber from an upper portion of the dirty liquid storage chamber, and an air discharge port through which air escapes from the dirty liquid storage chamber;
the buoy is positioned in the dirty liquid storage chamber, can float up and down along with the change of the liquid level in the dirty liquid storage chamber, comprises a buoy body, and is of a hollow closed body structure;
a plug movable up and down with the float, the plug being arranged to: when the buoy moves upwards to a set full-liquid position, the plug moves to the air vent and seals the air vent; the method is characterized in that:
the inside of the dirty liquid tank is also provided with a standby chamber and an exhaust pipe, wherein the standby chamber is positioned above the dirty liquid storage chamber, the standby chamber is communicated with the dirty liquid storage chamber, the exhaust pipe is configured to be capable of being communicated with the outside of the dirty liquid tank in a fluid way, the exhaust port is positioned at the joint of the dirty liquid storage chamber and the standby chamber or is completely positioned in the dirty liquid storage chamber, the exhaust pipe passes through the inside of the standby chamber, the lower part of the exhaust pipe is connected with the exhaust port, the upper part of the exhaust pipe is communicated with the outside of the dirty liquid tank, and the standby chamber is set as follows: when the dirty liquid tank inclines to exceed a set angle, at least part of the standby chamber is positioned at the lower side of the exhaust port, and at least part of the dirty liquid stored in the dirty liquid storage chamber can flow back into the standby chamber.
2. The contaminated fluid recovery assembly of claim 1 wherein: the assembly further comprises a dirty liquid inlet pipe for air and dirty liquid to flow into the dirty liquid storage chamber, at least part of the dirty liquid inlet pipe passes through the interior of the dirty liquid storage chamber, the dirty liquid inlet pipe is provided with an inlet end and an outlet end positioned above the inlet end, and the liquid falling port is positioned at the lower side of the outlet end.
3. The contaminated fluid recovery assembly of claim 2 wherein: the sewage tank is internally provided with a shielding cover, the shielding cover is positioned right above the outlet end of the sewage inlet pipe, and at least part of air flowing out of the outlet end of the sewage inlet pipe and sewage collide with the inner wall surface of the shielding cover and then fall to the liquid falling port.
4. A contaminated liquid recycling module according to claim 3 wherein: the lower part of the shielding cover is of an open structure, and the outlet end of the sewage inlet pipe extends upwards to the inner side of the shielding cover.
5. A contaminated liquid recycling module according to claim 3 wherein: the sewage tank is internally provided with a mounting frame, the mounting frame is positioned at the junction of the sewage storage chamber and the standby chamber, and the shielding cover is fixedly arranged on the mounting frame.
6. The contaminated fluid recovery assembly of claim 5 wherein: the buoy and the plug are fixed into a whole and are arranged on the mounting frame in an up-and-down movable way.
7. A surface cleaning apparatus comprising:
a cleaning head adapted to be moved over a surface to be cleaned, said cleaning head having a suction opening for sucking a dirty liquid into said cleaning head together with air and a liquid spray nozzle for outputting the cleaning liquid;
an upstanding portion, a lower portion of the upstanding portion being rotatably connected to the cleaning head;
the cleaning liquid supply assembly comprises a cleaning liquid tank which is arranged on the vertical part and communicated with the liquid spraying nozzle;
a contaminated liquid recycling assembly according to any of claims 1-6, said liquid drop port being in fluid communication with said suction port, said contaminated liquid tank being provided on said upright portion;
a hand-held vacuum cleaner comprising an air inlet stub, a dust collection barrel in airflow communication with said air inlet stub, and a suction motor in fluid communication with said dust collection barrel, said hand-held vacuum cleaner being capable of being removably in fluid communication with said upright portion; when the hand-held vacuum cleaner is connected with the vertical part, the air inlet of the dust collection barrel is communicated with the air outlet, and air and sewage mixed fluid enters the cleaning head part from the suction port and further flows into the sewage recovery assembly under the action of the suction motor.
8. The surface cleaning apparatus of claim 7 wherein the upright portion includes a hollow wand at the top, the hollow wand being adapted to detachably couple the upper end of the upright portion to the inlet wand of the hand-held vacuum cleaner.
9. The surface cleaning apparatus of claim 7 wherein the cleaning head is provided with a roller brush chamber and a roller brush mounted in the roller brush chamber, the liquid spray nozzle being capable of spraying the cleaning liquid onto at least one of the roller brush and the surface to be cleaned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910238229.1A CN109805832B (en) | 2019-03-27 | 2019-03-27 | Dirty liquid recovery subassembly and surface cleaning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910238229.1A CN109805832B (en) | 2019-03-27 | 2019-03-27 | Dirty liquid recovery subassembly and surface cleaning equipment |
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| Publication Number | Publication Date |
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| CN109805832A CN109805832A (en) | 2019-05-28 |
| CN109805832B true CN109805832B (en) | 2023-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910238229.1A Active CN109805832B (en) | 2019-03-27 | 2019-03-27 | Dirty liquid recovery subassembly and surface cleaning equipment |
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