CN220572125U - Surface cleaning device - Google Patents

Abstract

The utility model discloses a surface cleaning device, which belongs to the technical field of cleaning equipment and comprises a ground brush provided with a roller brush cavity, wherein a cleaning assembly is arranged in the roller brush cavity, a flow dividing plate is arranged at the top of the roller brush cavity, a plurality of jet flow ports which are distributed at intervals along the axial direction of the cleaning assembly and are used for providing liquid cleaning fluid and/or gaseous cleaning fluid for the cleaning assembly are arranged on the flow dividing plate, front jet flow rows and rear jet flow rows are arranged on the jet flow ports in front and back in the rotating direction of the cleaning assembly, and the jet flow ports of the front jet flow rows and the jet flow ports of the rear jet flow rows are distributed in a staggered manner in the axial direction of the cleaning assembly. The jet orifice forms a surface jet structure corresponding to the cleaning assembly, so that the jet area is enlarged, the cleaning fluid sprayed from the jet orifice can be rapidly spread on the top side of the cleaning assembly, the liquid absorption and wetting uniformity degree of the cleaning assembly in the axial direction is improved, the temperature consistency of the cleaning assembly in the axial direction can be improved, and the cleaning effect is improved.

Description

Surface cleaning device

Technical Field

The utility model relates to the technical field of cleaning equipment, in particular to a surface cleaning device.

Background

The existing hand-held surface cleaning machine generally comprises a machine body, a floor brush, a liquid supply assembly and a dirt collection assembly, wherein a cleaning piece driven by a motor is arranged in the floor brush, the liquid supply assembly supplies liquid to the cleaning piece to enable the cleaning piece to effectively wipe a surface to be cleaned, and the dirt collection assembly can suck dirt at the bottom of the floor brush and dirt scraped off by the cleaning piece into a dirt collection barrel. The traditional surface cleaner generally sets up water diversion piece, scraper blade and dirt absorbing mouth top-down in the rear side of cleaning member, because water diversion piece is nearer and near the dirt absorbing mouth is the negative pressure region at the organism during operation of dirt absorbing mouth, under the dual function of negative pressure suction and cleaning member rotation centrifugal force, the liquid that flows from water diversion piece distributes unevenly in cleaning member axial, is unfavorable for improving cleaning member's imbibition wetting uniformity to be unfavorable for improving cleaning effect. In addition, when the liquid supply assembly provides high-temperature liquid or steam for the cleaning piece, partial heat can be taken away by the negative pressure suction force at the dirt suction port, so that the temperature of the cleaning piece when contacting the surface to be cleaned is not guaranteed, and the cleaning effect is not improved. Based on this, some surface cleaning machines will divide the water spare to set up at the top of cleaning member, because the apopore on the current water spare generally along dividing the length direction interval distribution of water spare and be located same straight line, liquid or steam that flows from the apopore is comparatively concentrated and be difficult for spreading apart at the surface of cleaning member, leads to cleaning member inconsistent and the temperature inhomogeneous in axial imbibition wetting degree, is unfavorable for improving cleaning effect.

Disclosure of Invention

In order to solve the defects and shortcomings in the prior art, the utility model provides a surface cleaning device, which is characterized in that jet flow openings on a flow distribution plate are arranged in two rows which are distributed in a front-back staggered way, so that the jet flow openings form a surface jet structure corresponding to a cleaning assembly, and the uniformity of liquid absorption and wetting of the cleaning assembly along the axial direction and the consistency of temperature are improved, thereby being beneficial to improving the cleaning effect.

In order to achieve the technical purpose, the surface cleaning device provided by the utility model comprises a ground brush provided with a roller brush cavity, wherein a cleaning assembly is arranged in the roller brush cavity, a flow dividing plate is arranged at the top of the roller brush cavity, the flow dividing plate is provided with a plurality of jet flow ports which are distributed at intervals along the axial direction of the cleaning assembly and are used for providing liquid cleaning fluid and/or gaseous cleaning fluid for the cleaning assembly, the jet flow ports are distributed front and back in the rotating direction of the cleaning assembly and are provided with front jet flow rows and rear jet flow rows, and the jet flow ports of the front jet flow rows and the jet flow ports of the rear jet flow rows are distributed in a staggered manner in the axial direction of the cleaning assembly.

Preferably, the jet openings of the front jet rows and the jet openings of the rear jet rows are staggered one by one in the axial direction of the cleaning assembly.

Preferably, the flow dividing plate is provided with a flow inlet, a first flow channel and a second flow channel, the first flow channel is communicated with the flow inlet and the front flow jet outlet, the second flow channel is communicated with the flow inlet and the rear flow jet outlet, and the flow channel length of the first flow channel is longer than that of the second flow channel.

Preferably, the caliber of the jet flow opening of the front jet flow row is smaller than that of the jet flow opening of the rear jet flow row.

Preferably, the floor brush is provided with a dirt sucking port and a scraping plate, the dirt sucking port is arranged on the rear side of the middle part of the cleaning assembly and is communicated with the roller brush cavity, the scraping plate is arranged above the dirt sucking port and is lower than the jet flow port, and the front end of the scraping plate is in interference with the cleaning assembly.

Preferably, the jet port is formed with a spray region, and a shield extending toward the cleaning assembly is provided outside the spray region.

Preferably, the shield is an annular shield ring disposed about the spray zone.

Preferably, the underside of the shield abuts the cleaning assembly.

Preferably, the surface cleaning apparatus comprises a fluid supply assembly comprising a reservoir, a pump and a heater, the reservoir, pump, heater and diverter plate being in communication in sequence via a conduit.

Preferably, the cleaning assembly comprises a front roller shaft, a rear roller shaft and an annular cleaning belt, wherein the front roller shaft and the rear roller shaft are arranged at intervals in a front-back parallel manner, the annular cleaning belt is sleeved outside the front roller shaft and the rear roller shaft, and the front jet flow row and/or the rear jet flow row are/is positioned right above the front roller shaft.

After the technical scheme is adopted, the utility model has the following advantages:

1. according to the surface cleaning device provided by the utility model, the flow distribution plate is arranged at the top of the cleaning assembly, the front and rear spray openings on the flow distribution plate are distributed to form two rows, the two rows of spray openings are distributed in the axial direction of the cleaning assembly in a staggered manner, the distance between the two adjacent spray openings is reasonably enlarged through the arrangement of the two rows and the staggered distribution, so that the area of the spray area where the two adjacent spray openings overlap each other is reasonably reduced, all the spray openings form a surface spray structure corresponding to the cleaning assembly on the premise that the axial length and the vertical height of the cleaning assembly are kept unchanged, the cleaning fluid sprayed from each spray opening can form a spray surface with a certain length and a certain width, the spray area of the spray opening is reasonably enlarged, the spray area of the spray opening is simultaneously avoided, the cleaning fluid sprayed from the spray opening can be rapidly spread on the top side of the cleaning assembly, the liquid absorption and wetting uniformity degree of the cleaning assembly in the axial direction is improved, and when the flow distribution plate supplies high-temperature cleaning fluid to the cleaning assembly, the temperature uniformity of the cleaning assembly in the axial direction can also be improved, the cleaning effect of the cleaning assembly on the surface to be cleaned can be improved, and the cleaning effect is favorable.

2. The front and rear rows of jet flow openings are preferably distributed in a one-to-one staggered manner in the axial direction of the cleaning assembly, so that the distribution uniformity of the cleaning fluid flowing out of the jet flow openings in the axial direction of the cleaning assembly is improved, and the liquid absorption and wetting uniformity degree of the cleaning assembly in the axial direction can be further improved.

3. Because the jet flow port of the front jet flow row is closer to the front edge of the cleaning assembly than the jet flow port of the rear jet flow row, the length of the first flow channel is preferably longer than that of the second flow channel, and the fluid jet quantity of the front jet flow port is smaller than that of the rear jet flow port, so that the situation that cleaning fluid jetted from the jet flow port of the front jet flow row splashes out of the ground brush under the drive of the cleaning assembly can be avoided.

4. The caliber of the jet flow opening of the front jet flow row is preferably smaller than that of the jet flow opening of the rear jet flow row, and the fluid jet quantity of the jet flow opening of the front jet flow row is also smaller than that of the jet flow opening of the rear jet flow row, so that the situation that cleaning fluid jetted from the jet flow opening of the front jet flow row splashes out of the ground brush forward under the drive of the cleaning assembly can be avoided.

5. The scraper blade is located the top of dirt absorbing mouth and is less than jet flow mouth setting, and the front end of scraper blade is contradicted with the clean subassembly interference, can greatly reduced negative pressure suction effect through the barrier effect of scraper blade in the air current intensity that clean subassembly upside formed to can greatly reduced negative pressure suction to the influence that from jet flow mouth spun clean fluid caused, avoid from jet flow mouth spun clean fluid by the circumstances of backward sucking away under the negative pressure suction effect, also can alleviate the cooling influence that negative pressure suction caused high temperature clean fluid greatly, be favorable to further improving clean subassembly in the axial imbibition wetting uniformity degree and temperature uniformity.

6. The outside of the spray zone is provided with a shield extending towards the cleaning assembly, the shield preferably being provided as an annular shield ring arranged around the spray zone, the underside of the shield preferably abutting the cleaning assembly. The interference fit of the shielding piece and the cleaning component is utilized to enable the spraying area to be a space with stable air pressure and temperature, so that the flow influence and the cooling influence of negative pressure suction on cleaning fluid in the spraying area can be further reduced, and the axial liquid absorption and wetting uniformity degree and the temperature consistency of the cleaning component can be further improved. In addition, the shielding piece can avoid the condition that the cleaning fluid splashes out of the floor brush forward under the drive of the cleaning assembly.

7. The liquid storage tank, the pump, the heater and the flow dividing plate of the fluid supply assembly are sequentially communicated through pipelines, and the structure of the fluid supply assembly is reasonably arranged, so that the fluid supply assembly can smoothly supply cleaning fluid to the cleaning assembly.

8. The cleaning component preferably adopts a crawler-type mop structure, so that the contact area between the cleaning component and the surface to be cleaned can be reasonably increased, and the wiping efficiency is improved. The front jet flow row and the rear jet flow row are preferably arranged right above the front roller shaft, so that the travel of the annular cleaning belt moving to contact with the surface to be cleaned after liquid suction and wetting can be reasonably shortened, and when the flow distribution plate supplies high-temperature liquid cleaning fluid or gaseous cleaning fluid to the cleaning assembly through the jet flow port, the temperature of the annular cleaning belt when the surface to be cleaned is wiped can be reasonably improved, and the wiping effect is improved.

Drawings

FIG. 1 is a schematic diagram of a surface cleaning apparatus according to an embodiment;

FIG. 2 is a view showing a construction of a floor brush in a surface cleaning apparatus according to the first embodiment;

FIG. 3 is a second block diagram of a floor brush in the surface cleaning apparatus of the first embodiment;

FIG. 4 is a view showing a construction of a floor brush in the surface cleaning apparatus according to the first embodiment;

FIG. 5 is an enlarged view of FIG. 4 at A;

FIG. 6 is a schematic illustration of the cooperation of a drive assembly and a cleaning assembly in a surface cleaning apparatus according to an embodiment;

FIG. 7 is a bottom view of a front cover assembly of a surface cleaning apparatus of an embodiment;

FIG. 8 is a block diagram of a diverter plate in a surface cleaning apparatus according to one embodiment;

FIG. 9 is a schematic view of the flow channel structure inside the diverter plate in a surface cleaning apparatus according to one embodiment;

FIG. 10 is a schematic view of a fluid supply assembly in a surface cleaning apparatus according to an embodiment;

FIG. 11 is a view showing the construction of a floor brush in a surface cleaning apparatus according to the second embodiment;

FIG. 12 is a view showing the construction of a floor brush in the three-surface cleaning apparatus according to the embodiment;

fig. 13 is a partial construction view of a floor brush in the four-surface cleaning apparatus of the embodiment.

In the figure, 100-floor brushes, 110-roller brush cavities, 120-floor brush bodies, 130-front cover assemblies, 131-upper cover plates, 132-lower cover plates, 133-light guide plates, 134-annular baffle rings, 135-interfaces, 140-scrapers, 150-dirt suction ports, 160-floor scrapers, 170-lighting assemblies, 180-nozzles, 200-fuselages, 210-handles, 300-cleaning assemblies, 310-front roll shafts, 320-rear roll shafts, 330-annular cleaning belts, 331-base cloth layers, 332-bristle layers, 340-brackets, 400-splitter plates, 410-jet ports, 410 a-front jet rows, 410 b-rear jet rows, 420-upper plate bodies, 430-lower plate bodies, 440-bosses, 441-inlet ports, 451-main flow channels, 452-primary front flow channels, 453-secondary front flow channels, 454-primary rear flow channels, 455-secondary rear flow channels, 460-jet areas, 470-jet heads, 471-separators, 500-drive assemblies, 510-motors, 520-speed reduction mechanisms, 600-fluid supply boxes, 610-620-three-way pumps, 650-630-three-way valves.

Detailed Description

The utility model will be further described with reference to the drawings and the specific examples. It is to be understood that the terms "upper," "lower," "left," "right," "longitudinal," "transverse," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like, as used herein, are merely based on the orientation or positional relationship shown in the drawings and are merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the devices/elements referred to must have or be configured and operated in a particular orientation and therefore should not be construed as limiting the utility model.

It should be noted that, the surface cleaning apparatus in the embodiment of the present utility model may be a hand-held cleaner with a handle and manually operated by a user, such as a hand-held floor scrubber, a hand-held floor cleaner, a hand-held cleaner, etc.; there may be a cleaning robot having a driving wheel capable of controlling the driving wheel to travel according to a program stored in itself and controlling the cleaning roller to clean the floor. The utility model will be further described with reference to the accompanying drawings and specific embodiments using a hand-held surface cleaning apparatus as an example.

Example 1

Referring to fig. 1 to 10, a surface cleaning apparatus according to a first embodiment of the present utility model includes a floor brush 100 having a roller brush cavity 110, a cleaning assembly 300 disposed in the roller brush cavity 110, a flow dividing plate 400 disposed on top of the roller brush cavity 110, and a plurality of jet ports 410 disposed along an axial direction of the cleaning assembly 300 and configured to supply cleaning fluid to the cleaning assembly 300. The spouts 410 are disposed in front and rear directions in the rotation direction of the cleaning assembly 300 and are formed with front and rear spouting rows 410a and 410b, and the spouts 410 of the front and rear spouting rows 410a and 410b are alternately disposed in the axial direction of the cleaning assembly 300.

The two rows of jet ports 410 on the flow dividing plate 400 are distributed front and back to form two rows, the two rows of jet ports 410 are distributed in a staggered manner in the axial direction of the cleaning assembly, the distance between the two adjacent jet ports 410 is reasonably enlarged through the arrangement of the rows and the staggered distribution, so that the area of the mutually overlapped jet areas of the two adjacent jet ports 410 is reasonably reduced, all the jet ports 410 form a surface jet structure corresponding to the cleaning assembly 300 on the premise that the axial length and the vertical height of the cleaning assembly 300 are kept unchanged, the cleaning fluid sprayed from each jet port 410 can form a jet surface with a certain length and a certain width, the jet area of the jet port 410 is reasonably enlarged, the overlapping range of the jets is avoided, the cleaning fluid sprayed from the jet port 410 can be rapidly spread on the top side of the cleaning assembly 300, the liquid absorption and wetting uniformity degree of the cleaning assembly 300 in the axial direction is improved, and when the flow dividing plate 400 supplies the high-temperature cleaning fluid to the cleaning assembly 300, the temperature uniformity of the cleaning assembly 300 in the axial direction is also improved, the wiping effect of the cleaning assembly 300 on the surface to be cleaned can be improved, and the cleaning effect of the cleaning assembly 300 on the surface to be cleaned can be improved.

In this embodiment, a hand-held surface cleaning apparatus is taken as an example, and referring to fig. 1 and 2, the surface cleaning apparatus further includes a main body 200 with a handle 210 at the top, the floor brush 100 includes a floor brush main body 120 and a front cover assembly 130, the bottom end of the main body 200 is pivoted to the rear side of the floor brush main body 120, and the front cover assembly 130 is detachably fastened to the front side of the floor brush main body 120. When the front cover assembly 130 is fastened to the front side of the floor brush main body 120, the front cover assembly 130 and the floor brush main body 120 enclose a roller brush cavity 110, and the cleaning assembly 300 is detachably mounted in the roller brush cavity 110.

In this embodiment, in order to enhance the wiping efficiency and wiping effect of the cleaning assembly 300 on the surface to be cleaned, the cleaning assembly 300 preferably adopts a crawler-type mop structure in connection with fig. 2. Specifically, the cleaning assembly 300 includes a front roller 310, a rear roller 320, an endless cleaning belt 330, and a support 340, wherein the front roller 310 is rotatably mounted on the front side of the support 340, the rear roller 320 is rotatably mounted on the rear side of the support 340, the front roller 310 and the rear roller 320 are disposed at intervals parallel to each other through the support 340, and the endless cleaning belt 330 is sleeved outside the front roller 310 and the rear roller 320. Referring to fig. 6, a driving assembly 500 for driving the cleaning assembly 300 is disposed in the floor brush main body 120, the driving assembly 500 includes a motor 510 and a reduction mechanism 520, the motor 510 drives the rear roller 320 to rotate through the reduction mechanism 520, the rotating rear roller 320 drives the endless cleaning belt 330 to perform a circular motion, and the endless cleaning belt 330 performing a circular motion drives the front roller 310 to rotate. Further, in the present embodiment, the diameters of the front roller 310 and the rear roller 320 may be equal, or the diameter of the front roller 310 may be smaller than that of the rear roller 320. It is understood that the bracket 340 may be in a fixed structure or in a retractable structure, which will not be described herein.

Referring to fig. 2 and 4, in this embodiment, a scraper 140, a dirt sucking opening 150 and a ground scraper 160 are disposed on the front side of the ground brush main body 120 and distributed from top to bottom, the dirt sucking opening 150 is disposed on the rear side of the middle portion of the cleaning assembly 300 and is communicated with the roller brush cavity 110, the scraper 140 is disposed above the dirt sucking opening 150, the rear end of the scraper 140 is located in the front wall of the ground brush main body 120, the front end of the scraper 140 extends into the roller brush cavity 110 and interferes with the annular cleaning belt 330, the scraper 140 scrapes the moving annular cleaning belt 330, and scraped dirt falls on the dirt sucking opening 150. The floor scraper 160 is disposed below the dirt suction opening 150, the floor scraper 160 has elasticity, the bottom side is in interference contact with the surface to be cleaned, and when the floor brush 100 moves, the floor scraper 160 scrapes the surface to be cleaned and dirt is accumulated at the dirt suction opening 150.

In the working process of the surface cleaning device, the floor brush 100 moves on the surface to be cleaned, the annular cleaning belt 330 sleeved outside the front roller shaft 310 and the rear roller shaft 320 firstly passes through the dirt sucking opening 150 and the scraping plate 140 after wiping the surface to be cleaned, the scraping plate 140 in interference with the annular cleaning belt 330 scrapes dirt on the annular cleaning belt 330, the annular cleaning belt 330 scraped by the scraping plate 140 moves towards the jet opening 410, the jet opening 410 provides cleaning fluid for the annular cleaning belt 330, the annular cleaning belt 330 which is wet by liquid suction continuously rotates to wipe the surface to be cleaned again, and the cleaning capability of the annular cleaning belt 330 on the surface to be cleaned is improved.

In this embodiment, in order to reduce the influence of the negative pressure suction force on the cleaning fluid ejected from the nozzle 410 by the interference between the scraper 140 and the endless cleaning belt 330, the endless cleaning belt 330 is sufficiently wetted, and the scraper 140 is disposed below the nozzle 410, so that an infiltration area for infiltrating the endless cleaning belt 330 and a dirt suction area for collecting dirt scraped off by the scraper 140 are formed between the scraper 140 and the nozzle 410. Referring to fig. 4, in the present embodiment, the scraper 140 is disposed below the upper portion of the endless cleaning belt 330 between the two rollers such that the scraper 140 is disposed below the spouting port 410. The blocking effect of the scraper 140 can greatly reduce the air flow strength formed by the negative pressure suction force acting on the top side of the cleaning assembly 300, so that the influence of the negative pressure suction force on the cleaning fluid sprayed out of the jet orifice 410 can be greatly reduced, the condition that the cleaning fluid sprayed out of the jet orifice 410 is sucked backwards under the negative pressure suction force is avoided, and when the high-temperature cleaning fluid is sprayed out of the jet orifice 410, the cooling effect of the negative pressure suction force on the high-temperature cleaning fluid can be greatly reduced, and the wiping effect of the annular cleaning belt 330 on the surface to be cleaned is ensured.

Referring to fig. 3 and 5, in the present embodiment, the diverter plate 400 is disposed inside the front cover assembly 130, the diverter plate 400 is provided with a nozzle 470 extending downward from the front cover assembly 130, and the nozzle 410 is disposed at a lower end of the nozzle 470 and faces the cleaning assembly 300. Specifically, the front cover assembly 130 includes an upper cover plate 131 and a lower cover plate 132 fixed together, the flow dividing plate 400 is clamped between the upper cover plate 131 and the lower cover plate 132, and the shower head 470 protrudes downward out of the front cover assembly 130 through the lower cover plate 132. It will be appreciated that when the light emitting assembly 170 is disposed inside the brush main body 120, the front cover assembly 130 further includes a light guide plate 133 for guiding the light emitted from the light emitting assembly 170 forward out of the brush 100, the light guide plate 133 is clamped between the upper cover plate 131 and the lower cover plate 132, at this time, the splitter plate 400 is preferably clamped between the upper cover plate 131 and the light guide plate 133, and the nozzle 470 extends downward out of the front cover assembly 130 through the light guide plate 133 and the lower cover plate 132.

Referring to fig. 3, in this embodiment, two flow dividing plates 400 are provided, and the two flow dividing plates 400 are preferably symmetrically distributed in a left-right direction, and the nozzles 470 on the two flow dividing plates 400 are also symmetrically distributed in a left-right direction, and correspondingly, the jet ports 410 on the two flow dividing plates 400 are also symmetrically distributed in a left-right direction.

Referring to fig. 8, the nozzles 470 on each of the flow dividing plates 400 are arranged in two rows at intervals, and the number of the nozzles 470 in two rows is equal, and the nozzles 470 in two rows are staggered in the left-right direction. In order to improve the uniformity of the jets, in this embodiment, the front row of nozzles 470 and the rear row of nozzles 470 on each flow dividing plate 400 are staggered one by one in the left-right direction, that is, the front row of nozzles and the rear row of nozzles numbered in the same position from left to right are spaced apart in the left-right direction, so that the jet ports of the front jet row 410a and the jet ports of the rear jet row 410b are staggered one by one in the axial direction of the cleaning assembly 300. In particular, in the present embodiment, the two flow dividing plates 400 are respectively provided with four front-row nozzles 470 and four rear-row nozzles 470, that is, the number of the spouting ports of the front spouting row 410a is eight, the number of the spouting ports of the rear spouting row 410b is also eight, and the eight spouting ports of the front spouting row 410a and the eight spouting ports of the rear spouting row 410b are distributed at intervals in the left-right direction. It will be appreciated that the specific number of front row of spray heads 470 and rear row of spray heads 470 on each manifold 400 may be three, five, etc. in other reasonable amounts. To further improve the uniformity of the jet flow, the left-right spacing between adjacent nozzles 470 on the same manifold 400 is also preferably equal. Referring to fig. 7, in the present embodiment, eight nozzles 470 on each flow dividing plate 400 are equally spaced in the left-right direction, that is, d1=d2=d3=d4=d5=d6=d7. It will be appreciated that the spray heads 470 on each manifold 400 may also be distributed in a non-equidistant manner in the lateral direction.

Since the center area of the two flow dividing plates 400 corresponds to the front and rear of the dirt absorbing port 150 in the left-right direction, in order to reduce the temperature loss effect of the dirt collecting air flow at the dirt absorbing port 150 on the cleaning fluid ejected from the jetting port 410, as another scheme of the present embodiment, the jetting port 410 opposite to the dirt absorbing port 150 is far away from the dirt absorbing port 150 as far as possible to reduce the temperature loss. Specifically, the spouting holes 410a of the front spouting row 410a are distributed in a dense middle and sparse sides in the left-right direction, that is, the left-right distance between two adjacent spouting holes 410 located in the center region of the front spouting row 410a is smaller than the left-right distance between two adjacent spouting holes 410 located in the left-right side regions.

Referring to fig. 5, the flow dividing plate 400 includes an upper plate body 420 and a lower plate body 430 fixed together, and a spray head 470 extends downwardly from the lower plate body 430 to the front cover assembly 130. Referring to fig. 9, the splitter plate 400 is provided with a boss 440, a fluid inlet 441 is disposed on the boss 440, and a flow channel structure for communicating the fluid inlet 441 with each of the fluid spouts 410 is disposed between the upper plate body 420 and the lower plate body 430. The flow channel structure includes a first flow channel and a second flow channel, the first flow channel communicates with the inlet 441 and the jet opening of the front jet row 410a, and the second flow channel communicates with the inlet 441 and the jet opening of the rear jet row 410 b. In order to avoid the cleaning fluid ejected from the front nozzle 410a from splashing outside the floor brush 100 under the driving of the cleaning assembly 300, the length of the first flow channel is preferably longer than that of the second flow channel, so that the fluid ejection amount of the front nozzle 410 is smaller than that of the rear nozzle 410.

Referring to fig. 9, in this embodiment, the flow channel structure includes a main flow channel 451, a first-stage front flow channel 452, a second-stage front flow channel 453, a first-stage rear flow channel 454 and a second-stage rear flow channel 455, one end of the main flow channel 451 is communicated with the inlet 441, the other end of the main flow channel 451 is communicated with the first-stage front flow channel 452 and the first-stage rear flow channel 454, the first-stage front flow channel 452 extends in a bilateral symmetry manner, the left and right ends of the first-stage front flow channel 452 are both split into the second-stage front flow channel 453 extending in a bilateral symmetry manner, the first-stage rear flow channel 454 extends in a bilateral symmetry manner, the left and right ends of the first-stage rear flow channel 454 are both split into the second-stage rear flow channel 455 extending in a bilateral symmetry manner, and the main flow channel 451, the first-stage rear flow channel 454 and the second-stage rear flow channel 455 form a first flow channel. In this embodiment, the lengths of the second-stage front flow channel 453 and the second-stage rear flow channel 455 are the same, and the length of the first-stage front flow channel 452 is greater than that of the first-stage rear flow channel 454, so that the length of the first flow channel is greater than that of the second flow channel. It is understood that the lengths of the secondary forward flow path 453 and the secondary aft flow path 455 may be different.

Referring to fig. 9, in the present embodiment, the inlet port 441 is disposed at the end of the flow dividing plate 400, and the main flow channel 451 is arranged at the approximately middle position of the flow dividing plate 400, so that the path length of the liquid flowing from the inlet port 441 to each jet flow port 410 through the flow channel structure can be reasonably shortened, the flow dividing plate 410 can rapidly provide cleaning fluid to the annular cleaning belt 330 after the device is started, and the waiting time of the user when the device is just started can be reasonably shortened.

Referring to fig. 8, the lower end of each nozzle 470 is provided with two spouting ports 410 symmetrically distributed left and right and partitioned by a partition 471. In order to make the fluid ejection amount of the front row of spouts 410 further smaller than that of the rear row of spouts 410, in the present embodiment, the orifice diameter of the front row of spouts 410a is smaller than that of the rear row of spouts 410 b.

It is understood that the orifice diameter of the front orifice 410a may be equal to or slightly larger than the orifice diameter of the rear orifice 410b, provided that the difference in the lengths of the flow paths is such that the front orifice has a smaller fluid ejection volume than the rear orifice. Similarly, the length of the first flow channel may be equal to or slightly smaller than the length of the second flow channel on the premise that the fluid ejection amount of the front flow channel is smaller than that of the rear flow channel by making the diameters of the front and rear rows of the flow channels 410 different.

To reasonably shorten the travel of the endless cleaning belt 330 after imbibing and wetting to contact the surface to be cleaned, the front and rear rows of jets 410a, 410b are located directly above the front roller 310. In this embodiment, the splitter plate 400 is disposed on the front side of the front cover assembly 130, and all the nozzles 470 are located within the vertical projection range of the front roller shaft 310, so that all the nozzles 410 are located directly above the front roller shaft 310. Referring to fig. 4, a straight line P1 represents a vertical plane in which a front edge of the front roller 310 is located, a straight line P2 represents a vertical plane in which a rear edge of the front roller 310 is located, and a vertical projection range of the front roller 310 is located between the straight line P1 and the straight line P2, i.e., all the spray heads 470 are located in an area between the straight line P1 and the straight line P2. The rear side of the front cover assembly 130 is provided with a sliding block type lock catch for locking the front cover assembly 130 on the front side of the floor brush main body 120, and the splitter plate 400 and the sliding block type lock catch are distributed in the front cover assembly 130 back and forth, so that the blocking and interference of the splitter plate 400 on the sliding block type lock catch can be avoided. It will be appreciated that the jet ports of the rear jet row 410b may also be disposed offset rearward relative to the front roller 310, i.e., the jet ports of the rear jet row 410b are located rearward of the vertical projection of the front roller 310.

Referring to fig. 5, the spouting port 410 is formed with a spouting region 460 having a certain area on the bottom surface of the front cover assembly 130, and a shutter extending toward the cleaning assembly 300 is provided outside the spouting region 460 in order to reduce the influence of the negative pressure suction on the cleaning fluid in the spouting region 460. In this embodiment, a shield is provided on the bottom surface of the front cover assembly 130, preferably in the form of an annular shield ring 134 that projects downwardly around the spray area 460. It is understood that the annular shielding ring 134 may be integrally formed with the lower cover plate 132, or may be independently formed and then fixed to the bottom surface of the front cover assembly 130.

In order to avoid the situation that the cleaning fluid in the spraying area splashes out of the floor brush 100 forward under the driving of the annular cleaning belt 330, the bottom side of the shielding member preferably collides with the cleaning assembly 300, and the shielding member and the annular cleaning belt 330 combine to enable the spraying area to form a space with stable air pressure and temperature, so that the flow influence and the cooling influence of the negative pressure suction on the cleaning fluid in the spraying area 460 are reduced. Referring to fig. 5, the endless cleaning belt 330 includes a base cloth layer 331 and a bristle layer 332 disposed outside the base cloth layer 331, and a gap between a bottom surface of the endless shielding ring 134 and the base cloth layer 331 is smaller than a height of the bristle layer 332 in a stretched state, so that the bottom surface of the endless shielding ring 134 collides with the bristle layer 332 of the endless cleaning belt 330. The straight line L in fig. 5 represents a vertical plane in which the central axis of the front roller shaft 310 is located, and the front edge of the annular shielding ring 134 is located between the straight line L and the forefront edge of the annular cleaning belt 330, and cleaning fluid that splashes forward in the horizontal direction falls back down onto the annular cleaning belt 330 by the blocking action of the front edge of the annular shielding ring 134. It will be appreciated that the bottom surface of the annular shield ring 134 may also interfere with the base fabric layer 331 of the annular cleaning belt 330.

With reference to fig. 3, a nozzle 180 disposed toward the surface to be cleaned in front of the floor brush 100 is disposed between the two flow dividing plates 400, and with reference to fig. 7, two ports 135 are disposed at the rear side of the bottom of the front cover assembly 130, wherein one port 135 communicates with the flow inlet 441 on the two flow dividing plates 400, and the other port 135 communicates with the nozzle 180.

Referring to fig. 10, the surface cleaning apparatus includes a fluid supply assembly 600, the fluid supply assembly 600 including a reservoir 610, a pump 620, and a heater 630, the reservoir 610, the pump 620, the heater 630, and the manifold 400 being in communication in sequence via a conduit 640. In this embodiment, in order to enable the fluid supply assembly 600 to simultaneously supply fluid to the manifold 400 and the nozzles 180, the fluid supply assembly 600 further includes a three-way control valve 650 having an inlet and two outlets, the three-way control valve 650 being disposed downstream of the heater 630, one outlet of the three-way control valve 650 being in removable abutting communication with the corresponding interface 135 of the manifold 400 and the other outlet being in removable abutting communication with the corresponding interface 135 of the nozzles 180. The three-way control valve 650 is controlled by the control module, and a user can select an injection mode through a button, for example, the fluid supply assembly 600 supplies the cleaning fluid to the manifold 400 through the three-way control valve 650 in a normal state, and the fluid supply assembly 600 simultaneously supplies the cleaning fluid to the nozzle 180 through the three-way control valve 650 after pressing the button. It is to be understood that the spray pattern of the cleaning fluid is not limited thereto, and the user may select to supply the cleaning fluid to the flow dividing plate 400 or the nozzle 180 alone, or to supply the cleaning fluid to the flow dividing plate 400 and the nozzle 180 at the same time, or the like.

Other structures of the surface cleaning apparatus may refer to the prior art, such as the surface cleaning apparatus further includes a dirt collecting component, a battery, a control module, a display module, etc., and will not be described herein.

When the device works, the fluid supply assembly 600 can supply normal-temperature cleaning fluid to the flow distribution plate 400 and the nozzle 180, can supply high-temperature cleaning fluid to the flow distribution plate 400 and the nozzle 180 through heating of the heater 630, can supply gas-liquid mixed cleaning fluid to the flow distribution plate 400 and the nozzle 180 through heating of the heater 630, can further supply gaseous cleaning fluid to the flow distribution plate 400 and the nozzle 180 through heating of the heater, and can select a corresponding cleaning fluid supply mode according to dirt conditions by a user.

It will be appreciated that the nozzle 180 may be omitted, and the fluid supply assembly 600 may be omitted from the three-way control valve 650.

It will be appreciated that the shield may be provided as a strip-shaped lip on the rear side of the spraying area 460 or the shield may be provided as a strip-shaped lip on the front side of the spraying area 460.

Example two

Referring to fig. 11, in the present embodiment, the front roller 310 and the rear roller 320 of the cleaning assembly 300 have a structure of thin front and thick rear, that is, the outer diameter of the front roller 310 is smaller than that of the rear roller 320, the bottom side of the endless cleaning belt 330 is disposed substantially horizontally, and the top side of the endless cleaning belt 330 is disposed obliquely with low front and high rear. To improve the liquid-absorbing and wetting uniformity of the endless cleaning belt 330, the water distribution plate 400 is also arranged to be low in front and high in rear and substantially parallel to the top side of the endless cleaning belt 330, so that the distance between each nozzle 470 and the endless cleaning belt 330 is substantially uniform.

It will be appreciated that the manifold 400 in this embodiment may also be horizontally disposed.

Other structures of the second embodiment are the same as those of the first embodiment, and will not be described here again.

Example III

Referring to fig. 12, in this embodiment, the cleaning assembly 300 adopts a single-roller structure, which includes a roller shaft and a mop fixed to the periphery of the roller shaft, the splitter 400 is disposed corresponding to the roller shaft and located right above the roller shaft, the jet ports of the front jet row 410a are preferably located on the front side of the vertical plane of the central axis of the roller shaft shown by the straight line M, and the jet ports of the rear jet row 410b are preferably located on the rear side of the vertical plane of the central axis of the roller shaft shown by the straight line M.

Other structures of the third embodiment are the same as those of the first embodiment, and will not be described here again.

Example IV

Referring to fig. 13, in this embodiment, in order to reduce the driving load of the motor 510 in the driving assembly 500, the bottom side of the annular shielding ring 134 is not in interference contact with the annular cleaning belt 330, and meanwhile, in order to avoid that the liquid carried by the annular cleaning belt 330 is thrown forward onto the surface to be cleaned under the action of centrifugal force, the bottom surface of the front edge of the annular shielding ring 134 is lower than the tangential direction of the highest point of the annular cleaning belt 330, the front edge of the annular shielding ring 134 is utilized to block the liquid thrown forward by the annular cleaning belt 330, and the liquid blocked by the front edge of the annular shielding ring 134 falls back down onto the annular cleaning belt 330 and is absorbed. A straight line N1 in fig. 13 indicates a height position of the bottom surface of the leading edge of the endless shielding ring 134, a straight line N2 indicates a height position of the highest point of the endless cleaning belt 330 in a tangential direction, and the straight line N1 is lower than the straight line N2.

Other structures of the fourth embodiment are the same as those of the first embodiment, and will not be described here again.

It will be appreciated that the fourth embodiment may be combined with either the second or third embodiments.

In addition to the above preferred embodiments, the present utility model has other embodiments, and various changes and modifications may be made by those skilled in the art without departing from the spirit of the utility model, which shall fall within the scope of the utility model as defined in the appended claims.

Claims (10)

1. The utility model provides a surface cleaning device, is including the floor brush that is equipped with the roller brush chamber, and the roller brush intracavity is equipped with the cleaning subassembly, and the top in roller brush chamber is equipped with the flow distribution plate, and the flow distribution plate is equipped with a plurality of along the axial interval distribution of cleaning subassembly and is used for providing liquid cleaning fluid and/or gaseous cleaning fluid's jet mouth to the cleaning subassembly, a serial communication port, the jet mouth distributes and is formed with preceding jet row and back jet row around the direction of rotation of cleaning subassembly, and the jet mouth of preceding jet row and the jet mouth of back jet row are crisscross in the axial of cleaning subassembly.

2. A surface cleaning apparatus as claimed in claim 1, wherein the jets of the front jet row and the jets of the rear jet row are staggered one by one in the axial direction of the cleaning assembly.

3. The surface cleaning apparatus of claim 1, wherein the diverter plate is provided with an inlet, a first flow passage and a second flow passage, the first flow passage communicating the inlet with the front jet outlet and the second flow passage communicating the inlet with the rear jet outlet, the first flow passage having a greater length than the second flow passage.

4. A surface cleaning apparatus as claimed in claim 1, wherein the front jet discharge has a smaller jet aperture than the rear jet discharge.

5. The surface cleaning apparatus of claim 1, wherein the floor brush is provided with a dirt suction port and a scraper, the dirt suction port is arranged at the rear side of the middle part of the cleaning assembly and is communicated with the roller brush cavity, the scraper is arranged above the dirt suction port and is lower than the jet flow port, and the front end of the scraper is in interference with the cleaning assembly.

6. A surface cleaning apparatus as claimed in claim 1, wherein the jet is formed with a spray zone, the outer side of the spray zone being provided with a shield extending towards the cleaning assembly.

7. A surface cleaning apparatus as claimed in claim 6, wherein the shield is an annular shield ring disposed about the spray zone.

8. A surface cleaning apparatus as claimed in claim 6, wherein the underside of the shield abuts the cleaning assembly.

9. A surface cleaning apparatus as claimed in claim 1, wherein the surface cleaning apparatus comprises a fluid supply assembly comprising a reservoir, a pump and a heater, the reservoir, pump, heater and diverter plate being in communication in sequence via a conduit.

10. A surface cleaning apparatus as claimed in claim 1, wherein the cleaning assembly comprises a front roller, a rear roller, and an endless cleaning belt disposed in parallel and spaced apart relation from the front roller and the rear roller, the endless cleaning belt being disposed around the front roller and the rear roller, and the front jet row and/or the rear jet row being located directly above the front roller.