Dirty liquid recovery unit and wet and dry dust catcher
Technical Field
The utility model belongs to the technical field of surface cleaning equipment, in particular to foul solution recovery unit and be provided with wet or dry dual-purpose dust catcher of this device.
Background
In daily life, the vacuum dust collection equipment utilizes a suction unit to generate airflow entering a dust collection device from a dust inlet, so that the dust-containing airflow is sucked into the suction unit, dust in the dust-containing airflow is separated and collected, and the separated air is discharged outside. Vacuum cleaning devices are not generally used for suctioning water because the flow of water into the body is likely to damage the suction unit. Usually, residual water stains and the like on the ground are cleaned by means of water absorption through cleaning tools such as a mop, a bucket and the like, but the water absorption effect of the mop is very limited, the water absorption efficiency is not high, the water stains on the ground are easily enlarged to form a polluted area, and the cleaning effect is poor.
In the prior art, for wet cleaning of a surface to be cleaned, specialized wet cleaning devices have been provided which include a cleaning liquid delivery system for delivering a cleaning liquid to the surface to be cleaned, and a dirt recovery system for extracting spent cleaning fluid and debris (which may include dirt, dust, stains, dirt, hair, and other debris) from the surface. The cleaning liquid delivery system generally includes a supply tank for storing cleaning liquid, a 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 supply tank to the spray nozzle. An agitator may be provided for agitating the cleaning fluid on the surface. A dirty liquid recovery system typically includes a dirty liquid recovery tank, a suction opening facing a surface to be cleaned and in fluid communication with the dirty liquid recovery tank through a working air conduit, and a suction source in fluid communication with the working air conduit to draw cleaning fluid from the surface to be cleaned and discharge the cleaning fluid through the suction opening and the working air conduit to the dirty liquid recovery tank.
Among the above-described wet cleaning apparatuses, a typical apparatus is disclosed in chinese utility model 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 move 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 a portion of the fluid delivery path. The fluid delivery channel may be formed by a portion of the suction nozzle assembly on the base.
A prior chinese patent application publication No. CN108478097A discloses a vacuum cleaner capable of attaching a cleaning attachment to perform a wet cleaning operation, and a chinese published patent document No. CN104768439A also discloses a moisture absorbing attachment attached to a dry vacuum cleaner for cleaning purposes. The accessories in the two documents expand the application range of the dust collector using the common dry vacuum motor, but in the water absorption process, the airflow can cause great disturbance to sewage, on one hand, a floater in the sewage tank fluctuates up and down along with the sewage violently, so that a liquid level sensor alarms or a plug seals an exhaust port, and the accurate judgment of the water level in the sewage tank by a user is influenced; on the other hand, the open sewage containing chamber makes the air current take partial sewage to the gas vent easily, gets into the motor room, damages the motor.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, a first object of the present invention is to provide a dirty liquid recovery device with more stable liquid level change in a dirty liquid tank; the second purpose of the utility model is to provide a wet and dry dust collector with the dirty liquid recovery device.
In order to realize the first purpose of the above utility model, the utility model adopts the following technical scheme: a dirty liquid recovery device, comprising:
the sewage tank is internally provided with a sewage receiving chamber, and the sewage tank is provided with a liquid dropping port through which sewage drops into the sewage receiving chamber from top to bottom and an air outlet through which air escapes from the sewage receiving chamber;
at least part of the dirty liquid inlet pipe extends into the dirty liquid receiving chamber, and the dirty liquid inlet pipe, the liquid dropping port and the dirty liquid receiving chamber are communicated in sequence;
a float positioned in the dirty liquid storage chamber;
the bottom of the sewage tank is also provided with a convex rib, the convex rib is arranged at the bottom of the sewage tank to form a buffer cavity, the upper part of the buffer cavity is communicated with the sewage containing chamber, at least part of the projection of the liquid dropping port is arranged in the buffer cavity on the horizontal plane, the buoy is positioned outside the buffer cavity, and at least part of the sewage falling from the liquid dropping port falls into the buffer cavity and then enters the sewage containing chamber.
In the above technical solution, preferably, the convex rib is surrounded on the outer side of the dirty liquid inlet pipe.
In the above technical solution, preferably, the opening of the buffer chamber is larger than the liquid dropping port.
In the above technical solution, preferably, the device further includes a shielding cover, the shielding cover is located in the dirty liquid tank and located right above the dirty liquid inlet pipe, and at least a part of the dirty liquid flowing out from the dirty liquid inlet pipe collides with an inner wall surface of the shielding cover and then enters the liquid outlet.
In the above technical scheme, preferably, the lower part of the shielding cover is of an open structure, and the upper end part of the dirty liquid inlet pipe extends upwards into the inner side of the shielding cover.
In the above technical solution, preferably, the buoy is sleeved outside the dirty liquid inlet pipe and has a cylindrical structure with an upper opening and a lower opening, the minimum inner diameter of the buoy is smaller than or equal to the aperture of the opening of the buffer cavity, and the inner diameter of the lower part of the buoy is increased and covers the outer side of the buffer cavity.
In the above technical scheme, preferably, the dirty liquid box include a dirty liquid box and cover dirty liquid box upper cover on dirty liquid box upper portion, protruding muscle and dirty liquid admission pipe follow the bottom of dirty liquid box is to inboard extension, dirty liquid admission pipe be located the middle part of dirty liquid box.
In the above technical scheme, preferably, the dirty liquid tank, the convex rib and the dirty liquid inlet pipe are integrally formed.
In the above technical solution, preferably, the float includes an upper surface and a lower surface, and the upper surface and/or the lower surface is a slope surface gradually inclined downward from back to front.
In the above technical solution, preferably, the contaminated liquid recovery apparatus further includes a plug that moves up and down with the float, and the plug can block the exhaust port.
In order to realize the second purpose of the above utility model, the utility model adopts the following technical scheme:
a wet and dry vacuum cleaner comprising:
a cleaning head adapted to be moved over a surface to be cleaned, said cleaning head having a suction opening for drawing dirty liquid into said cleaning head together with air and a liquid jet nozzle for delivering cleaning liquid;
an upright portion, a lower portion of which is rotatably connected with the cleaning head;
a cleaning liquid supply device including a cleaning liquid tank provided on the upright portion and communicating with the liquid jet nozzle;
in the dirty liquid recovery device, the liquid outlet is in fluid communication with the suction port, and the dirty liquid tank is arranged on the vertical part;
the dust collector host comprises a short air inlet pipe, a dust collecting barrel in air flow communication with the short air inlet pipe and a suction motor in fluid communication with the dust collecting barrel, and the dust collector host can be detachably communicated with the upright part; when the main machine of the dust collector is communicated with the upright part, the air inlet short pipe is communicated with the air outlet, and dirty liquid and air enter the cleaning head part from the suction port under the suction force of the suction motor and flow through the dirty liquid recovery device.
In the above technical solution, preferably, the vacuum cleaner main unit is a handheld portable cleaner main unit or a horizontal cleaner main unit.
The utility model discloses a set up the cushion chamber in the foul solution containing chamber for foul solution that falls into in the foul solution containing chamber can be full of the cushion chamber earlier, and the rethread cushion chamber outwards overflows, makes foul solution can not produce big disturbance along with the air after getting into the foul solution containing chamber, and the removal of buoy is gentler, and protruding muscle can form certain stopping to foul solution, can improve the gas-liquid separation effect.
Drawings
FIG. 1 is a perspective view of the wet and dry vacuum cleaner of the present invention;
FIG. 2 is a schematic left sectional view of the wet and dry vacuum cleaner shown in FIG. 1;
FIG. 3 is a schematic view of the sewage recovery device according to the present invention;
FIG. 4 is a schematic view showing a cross-sectional structure of the contaminated fluid recovery apparatus according to the present invention and a flow direction of air and contaminated fluid therein;
FIG. 5 is a schematic view showing the flow direction of the dirty liquid and air in the wet and dry dual-purpose vacuum cleaner of the present invention;
wherein: 11. cleaning the head; 12. an upright portion; 13. a cleaning liquid supply device; 14. a dirty liquid recovery device; 15. a main machine of the dust collector; 16. a suction port; 17. a cleaning liquid tank; 18. a short air inlet pipe; 19. a dust collecting barrel; 20. a suction motor; 21. a dirty liquid tank; 22. a dirty liquid tank body; 23. an upper cover of the waste liquid tank; 24. a dirty liquid storage chamber; 25. a liquid dropping port; 26. an exhaust port; 27. the dirty liquid enters the pipe; 28. a float; 29. a plug; 30. a rib is protruded; 31. a buffer chamber; 32. a shield cover; 33. rotating the connector; 34. a cleaning head housing; 35. a rolling brush chamber; 36. rolling and brushing; 37. a suction channel; 38. and (4) hard tubes.
Detailed Description
To explain the technical content, structural features, achieved objects and functions of the present invention in detail, the following detailed description is made with reference to the accompanying drawings. In this embodiment, the directions "up", "down", "left", "right", "front" and "rear" correspond to the respective positional relationships of the wet and dry vacuum cleaner shown in fig. 1.
As shown in fig. 1-2, the wet and dry vacuum cleaner includes a cleaning head 11, an upright portion 12, a cleaning liquid supply device 13, a dirty liquid recovery device 14, and a cleaner main body 15. Wherein, the cleaning head 11, the upright part 12 and the cleaner main body 15 are detachably connected in sequence from bottom to top, and the cleaning liquid supply device 13 and the dirty liquid recovery device 14 are respectively arranged on the upright part 12. The cleaning head 11 is movable over the floor to be cleaned, and its rear part is connected to the lower part of the upright part 12 by a rotary connection 33. The cleaning head 11 comprises a cleaning head housing 34, a suction opening 16 is provided at the bottom of the cleaning head housing 34, and a suction channel 36 is provided from the front suction opening 16 to the rotary connection 33 of the cleaning head housing 34, the suction channel 36 being capable of sucking dirty air and dirty liquid on the floor to be cleaned together therein under the suction force provided by the cleaner main body 15. A rolling brush chamber 35 is provided in the cleaning head housing 34, and a rolling brush 36 is installed in the rolling brush chamber 35, and a lower end portion of the rolling brush 36 extends to the outside of the suction port 16 and can be in scraping contact with the floor surface to be cleaned, so that dirty fluid, such as dirty liquid, dust particles, etc., on the floor surface to be cleaned is picked up and sent to the suction port 16. Also disposed within the cleaning head housing 34 is a chamber (not shown) for receiving a portion of the dirty liquid recovery line and a portion of the cleaning liquid output line.
The cleaning liquid supply device 13 includes a cleaning liquid tank 17, and a liquid spray nozzle (not shown) provided in the cleaning head housing 34 for spraying cleaning liquid onto the roll brush 36. The upright part 12 is provided with a first mounting groove capable of accommodating a cleaning liquid tank 17, and the cleaning liquid tank 17 is mounted in the first mounting groove of the upright part 12. The cleaning liquid box 17 is communicated with the liquid spraying nozzle through a cleaning liquid output pipeline, and necessary parts such as a pump are further arranged on the cleaning liquid output pipeline so as to convey the cleaning liquid to the liquid spraying nozzle in time and in sufficient quantity. In other embodiments, the nozzle may be disposed outside the cleaning head housing 34 and in front of the suction port 16, so that the nozzle can directly wet the floor to be cleaned in front of the suction port 16, and the rolling brush 36 can be used to brush the wetted floor, which can also achieve the same effect.
As shown in fig. 3 to 4, the dirty liquid recovery apparatus 14 includes a dirty liquid tank 21, a dirty liquid inlet pipe 27, a float 28, a plug 29, and a shield cover 32. The upright part 12 is provided with a second mounting groove capable of accommodating the dirty liquid tank 21, and the dirty liquid tank 21 is mounted in the second mounting groove and located at the lower part of the cleaning liquid tank 17.
The dirty liquid tank 21 includes a dirty liquid tank body 22 and a dirty liquid tank cover 23 covering the upper portion of the dirty liquid tank body 22, a dirty liquid receiving chamber 24 is formed in a space between the dirty liquid tank body 22 and the dirty liquid tank cover 23, and a dirty liquid inlet pipe 27 extends inward from the bottom of the dirty liquid tank body 22 and extends up to the middle position of the dirty liquid tank body 22. The dirty liquid tank 21 has a liquid dropping port 25 through which dirty liquid drops from top to bottom into the dirty liquid storage chamber 24, and an exhaust port 26 through which air escapes from the dirty liquid storage chamber 24, and the dirty liquid inlet pipe 27, the liquid dropping port 25, and the dirty liquid storage chamber 24 are connected in this order. The shielding cover 32 is arranged in the dirty liquid tank 21 and is positioned right above the dirty liquid inlet pipe 27, the lower part of the shielding cover 32 is of an open structure, and the upper end part of the dirty liquid inlet pipe 27 extends upwards into the inner side of the shielding cover 32. When the dirty liquid and the air enter the dirty liquid tank 21 together, at least a part of the dirty liquid flowing out of the dirty liquid inlet pipe 27 collides with the inner wall surface of the shield cover 32, enters the liquid outlet 25, and then falls into the dirty liquid storage chamber 24 through the liquid outlet 25.
The float 28 is fitted around the outside of the waste liquid inlet pipe 27 and has a cylindrical structure with an upper opening and a lower opening, but in this embodiment, the inside of the float 28 has a hollow structure and has a large volume, and in other examples, a polymer material with a low specific gravity may be used. The buoy 28 further comprises an upper surface and a lower surface, the upper surface and the lower surface of the buoy 28 are both slope surfaces which are gradually inclined downwards from back to front, and the slope surface of the lower surface is arranged to be adapted to the horizontal surface in the dirty liquid tank 21 in the working state of the dust collector, because when a user uses the dry-wet dual-purpose dust collector, the upright part 12 of the user is in an inclined position which forms a certain included angle with the ground to be cleaned, the dirty liquid in the dirty liquid tank 21 is correspondingly inclined, and when the horizontal surface of the dirty liquid in the dirty liquid tank 21 is raised, the buoy 28 can be lifted along with the inclined position, and the slope surface is arranged to increase the contact surface between the dirty liquid and the lower surface of the buoy 28, so that the buoy 28 can be lifted more stably; the slope surface on the upper surface is provided so that the splashed part of the dirty liquid flows into the dirty liquid storage chamber 24 from high to low, and the floating buoy 28 can float smoothly. Of course, the provision of such ramps on both the upper and lower surfaces of the float 28 is preferred in this embodiment, and in other embodiments such ramps may be provided on only one surface of the float 28. The plug 29 is provided on the upper end portion of the float 28, and is capable of floating upward in accordance with the floating of the float 28, and when the foul solution tank 21 is filled with the foul solution, the plug 29 is capable of blocking the exhaust port 26 located thereabove.
In order to smooth the liquid level change in the dirty liquid tank 21 and avoid splashing of dirty liquid falling into the dirty liquid storage chamber 24, the bottom of the dirty liquid tank 21 is provided with a convex rib 30, the convex rib 30 is arranged around the outer side of the dirty liquid inlet pipe 27, and the bottom of the dirty liquid tank 21 is surrounded to form a buffer chamber 31, the upper part of which is communicated with the dirty liquid storage chamber 24, the opening of the buffer chamber 31 is larger than the liquid falling port 25, so that the horizontal projection of the liquid falling port 25 at least partially falls into the buffer chamber 31, the buoy 28 is arranged outside the buffer chamber 31, because the buoy 28 is in a cylindrical structure with upper and lower openings, the buoy has a minimum inner diameter and a maximum outer diameter, the minimum inner diameter of the buoy 28 is not larger than the caliber of the buffer chamber 31, and the maximum outer diameter of the buoy 28 is larger than the caliber of the buffer chamber 31, so that the buoy 28 can cover the outer side of the buffer chamber 31, so that at least part of dirty liquid falling from the liquid falling port 25 firstly falls into the buffer chamber 31, be full of the back with buffer chamber 31, spill over to dirty liquid collecting chamber 24 from buffer chamber 31 again for buoy 28 can be more steady floating, avoid buoy 28 acutely float and lead to the stopper mistake to seal up gas vent 26, help the more accurate liquid level condition of the dirty liquid of judgement in the dirty liquid tank 21 of user, in order to empty dirty liquid etc. in good time. In addition, the arrangement of the convex ribs 30 can also improve the gas-liquid separation effect, specifically speaking, during the dirty liquid is not filled in the buffer cavity 31, the dirty liquid is difficult to cross the convex ribs 30, and the air can freely cross the convex ribs 30 and flow upwards to the exhaust port 26, so that the dirty liquid and the air can be separated conveniently. In the above technical solution, preferably, the dirty liquid tank 21, the ribs 30 and the dirty liquid inlet pipe 27 are integrally formed by injection molding.
The main body 15 of the vacuum cleaner comprises a short air inlet pipe 18, a dust collecting barrel 19 in air flow communication with the short air inlet pipe 18 and a suction motor 20 in fluid communication with the dust collecting barrel 19, the upright part 12 comprises a section of hard pipe 38, one end of the hard pipe 38 is communicated with the short air inlet pipe 28, and the other end of the hard pipe is communicated with an exhaust port 26 of the dirty liquid tank 21.
As shown in fig. 5, the dirty liquid recovery principle of the wet and dry vacuum cleaner is as follows: the dirty liquid together with air is drawn from the suction opening 16 into the cleaning head 11 under the suction force of the suction motor 20 and passes through the dirty liquid recovery device 14, the dirty liquid is retained in the dirty liquid tank 21, and the air is drawn into the cleaner body 15 through the exhaust outlet 26 and is eventually exhausted to the environment. In this embodiment, the main vacuum cleaner unit 15 is a handheld portable main vacuum cleaner unit, which is convenient for forming an upright vacuum cleaner with the upright part 12 and the cleaning head 11, and in other embodiments, the main vacuum cleaner unit 15 may also be a horizontal main vacuum cleaner unit, and only a hose is needed to replace a hard pipe part of the upright part 12 to achieve air flow communication.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.