Surface cleaning floor brush and vacuum cleanerTechnical Field
The invention relates to the technical field of cleaning equipment, in particular to a surface cleaning floor brush and a vacuum cleaner.
Background
Wet surface cleaning apparatuses are generally capable of cleaning a surface to be cleaned and sucking up a dirty fluid such as water stains remaining on the surface to be cleaned after cleaning, and such wet surface cleaning apparatuses are generally known as floor cleaners, and the like.
In the prior art, the above devices can be broadly divided into two types by using different liquid suction principles: one is a mode of rolling up the sewage by using a rolling brush rotating at a high speed and then feeding the sewage into equipment, such as surface cleaning equipment with a publication number of CN 206434268U; the second type is a mode of directly sucking up the contaminated liquid by using a flat suction nozzle, such as a cleaning device disclosed in chinese patent publication No. CN 209074463U. Although these two types of devices can well complete the wet cleaning work on the floor, there is a common disadvantage that the dirty liquid on the floor cannot be completely sucked off, that is, more or less liquid remains on the floor, which will prevent the user from immediately entering the area just cleaned, and the waiting time must be left, so that the user experience is reduced.
Disclosure of Invention
In order to solve the above technical problems, a first object of the present invention is to provide a surface cleaning floor brush capable of effectively improving a dirty liquid suction rate. A second object of the present invention is to provide a vacuum cleaner of a surface cleaning floor brush of this effect.
In order to achieve the first object of the invention, the present invention adopts the following first technical scheme: a surface cleaning brush adapted for attachment to a vacuum cleaner, the brush comprising:
A housing having a front side and a rear side, wherein a suction duct is provided between the front side and the rear side, the suction duct has an opening positioned on the lower side of the housing, a flexible suction nozzle is provided on the opening, the flexible suction nozzle comprises a front flexible lip scraping strip and a rear flexible lip scraping strip which are opposite to each other, and a sewage suction channel communicated with the suction channel is formed between the front flexible lip scraping strip and the rear flexible lip scraping strip;
A cleaning liquid output channel for outputting cleaning liquid to the outside to wet the surface to be cleaned, the cleaning liquid output channel having at least one liquid drop port on the lower side of the housing; and
The flexible liquid scraping strip is arranged on the lower side part of the shell and is positioned behind the rear flexible lip scraping strip, and the brush and the liquid dropping port are positioned between the rear flexible lip scraping strip and the flexible liquid scraping strip; the flexible wiper strip is configured to push and wipe droplets falling on a surface to be cleaned forward and to be restrained in front of the flexible wiper strip as the housing is moved forward along the surface to be cleaned.
In the above first technical solution, preferably, the device further includes a brush, the brush is mounted on a lower side portion of the housing and located at a rear of the rear flexible lip-scraping strip, and the brush is located between the rear flexible lip-scraping strip and the flexible liquid-scraping strip.
In the first aspect, it is preferable that the brush is provided on a lower side portion of the housing so as to be vertically movable, so that the brush has a first state of contacting a surface to be cleaned and a second state of being away from the surface to be cleaned.
In the first aspect, preferably, the liquid dropping port is adjacent to or inside the brush.
In the first aspect, preferably, the brush is a scrubber, and the scrubber includes at least one row of bristles extending in a left-right direction.
In the above first technical solution, preferably, the lower side portion of the housing has a recess, a substrate is mounted in the recess, and the brush and the drip opening are both disposed on the substrate. Further preferably, the flexible wiper strip is mounted at the rear of the base plate.
In the first aspect, preferably, at least one rib extending in the front-rear direction is disposed at the opening.
In the above first technical solution, preferably, the surface cleaning floor brush further includes a vertical rod whose lower part is rotatably connected to the housing, and an interface for detachably connecting with the vacuum cleaner is provided on the vertical rod; when the vacuum cleaner is connected with the interface, the negative pressure generated by the vacuum cleaner can extend to the interface.
In the above first aspect, preferably, the surface cleaning floor brush further includes a cleaning liquid tank detachably disposed on the upright rod and in fluid communication with the cleaning liquid output channel.
In the first aspect, preferably, a mechanical valve is disposed on the cleaning solution output channel.
In the above technical solution, preferably, the surface cleaning floor brush further includes a sewage tank detachably disposed on the upright rod, and the suction pipe, the sewage tank and the interface are sequentially in fluid communication.
In the above first technical solution, preferably, the front flexible lip-scraping strip and the rear flexible lip-scraping strip are respectively provided with a protrusion on a side surface facing away from the dirty liquid suction channel; when the shell moves forwards along the surface to be cleaned, the protrusion of the front flexible lip scraping strip jacks up the front flexible lip scraping strip, so that a front gap communicated with the dirty liquid suction channel is reserved between the front flexible lip scraping strip and the surface to be cleaned; when the shell moves backwards along the surface to be cleaned, the protrusion of the rear flexible lip scraping strip jacks up the rear flexible lip scraping strip, so that a rear gap communicated with the dirty liquid suction channel is formed between the rear flexible lip scraping strip and the surface to be cleaned.
In the first aspect, preferably, the flexible wiper strip has a rear surface, and a plurality of pits are disposed on the rear surface.
In order to achieve the second object of the invention, the present invention adopts the following second technical scheme: a vacuum cleaner comprising a surface cleaning brush as in the first aspect or any of the preferred aspects of the first aspect and a hand-held vacuum device removably coupled to the surface cleaning brush.
When the surface cleaning floor brush is used, the dirty liquid is totally limited between the front flexible lip suction strip and the liquid scraping strip, so that the dirty liquid is prevented from flowing randomly, a basis is provided for the concentrated suction of the liquid by the flexible suction nozzle, the dirty liquid on the surface to be cleaned can be efficiently removed in the forward pushing and backward pulling processes of the surface cleaning floor brush, and no liquid residue on the surface to be cleaned is realized as far as possible.
Drawings
FIG. 1 is a schematic perspective view of a surface cleaning brush according to one embodiment of the present disclosure;
fig. 2 is a schematic perspective view of a brushhead portion in accordance with one embodiment of the present invention;
FIG. 3 is a schematic cross-sectional front view of a brushhead portion in accordance with one embodiment of the present invention;
FIG. 4 is a second perspective view of a brushhead portion in accordance with one embodiment of the present invention;
FIG. 5 is a schematic view showing the state of the front and rear flexible lip strips at the flexible suction nozzle when the brush head is pushed forward to move forward along the surface to be cleaned in one embodiment according to the aspect of the present invention;
FIG. 6 is a schematic view of the front and rear flexible lip strips at the flexible nozzle as the brush head is pulled rearward to move rearward along the surface to be cleaned in one embodiment in accordance with aspects of the present invention;
FIG. 7 is a schematic view showing the state of the flexible suction nozzle and the flexible wiper strip when the brush head is pushed forward to move forward along the surface to be cleaned in one embodiment according to the present invention;
FIG. 8 is a schematic view of the state of the flexible suction nozzle and flexible wiper strip when the brush head is pulled back to move it back along the surface to be cleaned in one embodiment in accordance with aspects of the present invention;
figure 9 is a schematic view of a vacuum cleaner according to one embodiment of the present invention.
Wherein: 100. a surface cleaning floor brush; 1. a brush head; 2. a vertical rod part; 11. a housing; 111. a front side portion; 112. a rear side portion; 113. a left side portion; 114. a right side portion; 115. an upper side portion; 116. a lower side portion; 1161. a recessed portion; 118. a moving wheel; 117. supporting the small wheel; 12. a suction duct; 121. a hose; 122. an inner space; 123. a hose; 13. an opening; 131. a rib; 14. a flexible suction nozzle; 141. a front flexible lip strip; 142. a rear flexible lip strip; 143. a dirty liquid suction channel; 1411. a protrusion; 1421. a protrusion; 144. a front slit; 145. a rear slit; 15. brushing; 151. brushing; 16. a cleaning liquid output channel; 17. a liquid drop port; 18. a flexible wiper strip; 181. pit; 19. a substrate; 20. a vertical rod; 21. an interface; 22. a cleaning liquid tank; 23. a sewage tank; 200. a hand-held vacuum device; 201. and an air inlet end.
Detailed Description
A surface cleaning floor brush 100 according to an embodiment of the application is described with reference to fig. 1, comprising a brush head part 1 and a pole part 2. The lower part of the upright pole part 2 is rotatably connected to the brush head part 1, and the upright pole part 2 has an upright stop position and a backward inclined use position. For purposes of description in connection with the drawings, the terms "upper", "lower", "right", "left", "rear", "front", "vertical", "horizontal", "inner", "outer" and derivatives thereof will refer to the application as shown in fig. 1. From the user's perspective, the user stands on the rear side of the surface cleaning brush 100 while using the surface cleaning brush 100.
As shown in fig. 2-4, the brush head 1 is adapted to move over a surface to be cleaned, in particular a floor surface; it includes a housing 11 having a front side 111, a rear side 112, a left side 113, a right side 114, an upper side 115, and a lower side 116. The housing 11 defines a suction duct 12, the suction duct 12 having an opening 13 (shown schematically in fig. 2 and 3) located on a lower side 116 of the housing 11. The suction duct 12 leads to a suction motor (not shown) located in the surface cleaning brush or elsewhere in the vacuum cleaner. The suction duct 12 is constituted at a front portion by a hose 121, at a part by an inner space 122 defined by an inner wall of the housing 11, and at a rear portion by a hose 123. The suction duct 12 receives and guides the fluid mixed with the contaminated liquid sucked by suction, and the opening 13 is located at the junction of the suction duct 12 and the lower side 116 of the housing 11. The housing 11 and its components may have other shapes and configurations in other embodiments. A cleaning liquid output passage (not shown in the drawings) for outputting cleaning liquid, which is water stored in a cleaning liquid tank 22 mentioned below, an aqueous solution containing a detergent and/or a bactericide, or the like, to the outside to wet a surface to be cleaned is provided in the housing 11. The cleaning liquid outlet channel has a liquid drop 17 on the underside 116 of the housing 11, by means of which liquid drop 17 cleaning liquid can be continuously fed to the cleaning tool or to the surface to be cleaned on the underside 116 of the housing 11.
A pair of large moving wheels 118 are provided on the rear side 112 of the housing 11, the pair of moving wheels 118 being capable of moving the brush head 10 over the surface to be cleaned. The lower side 116 of the housing 11 is located in a neutral position and is also provided with a pair of support wheels 117. A pair of support wheels 117 can facilitate better movement of the housing 11 by a user.
A flexible suction nozzle 14 is also provided on the underside 116 of the surface cleaning floor brush 100. In this example, a flexible suction nozzle 14 is arranged at the opening 13. The flexible suction nozzle 14 includes: front and rear flexible lip strips 141 and 142 are disposed in front of and opposite to each other. The front flexible lip strip 141 and the rear flexible lip strip 142 extend in the left-right direction and are disposed at the front and rear side edges of the opening 13, and a dirty liquid suction channel 143 communicating with the suction channel 12 is constructed between the front flexible lip strip 141 and the rear flexible lip strip 142.
In this example, the front flexible lip strip 141 and the rear flexible lip strip 142 are provided with protrusions 1411 and 1421, respectively, on a side facing away from the dirty liquid suction channel 143. The opening 13 is provided with a plurality of ribs 131 dividing the opening 13 into a plurality of small openings in the left-right direction. The ribs 131 can also serve to strengthen the strength at the opening 13.
As shown in fig. 5, when the brush head 1 is pushed forward to move forward along the surface to be cleaned, the protrusions 1411 of the front flexible lip strips 141 lift the front flexible lip strips 141, so that a front gap 144 communicating with the dirty liquid suction channel 143 is left between the front flexible lip strips 141 and the surface to be cleaned, and fine dust and dirty liquid located in front of the flexible suction nozzle 14 can be continuously sucked from the front gap 44 into the dirty liquid suction channel 143; and at this point the rear flexible lip 142 will be in close proximity to the surface to be cleaned and the liquid droplets behind the rear flexible lip 142 will be isolated from the suction nozzle 14.
As shown in fig. 6, when the brush head 1 is pulled backward so as to move backward along the surface to be cleaned, the projection 1421 of the rear flexible lip strip 142 lifts up the rear flexible lip strip 142, so that a rear gap 145 communicating with the dirty liquid suction channel 143 is formed between the rear flexible lip strip 141 and the surface to be cleaned; at this time, the front flexible lip 141 is closely attached to the surface to be cleaned, and the front region of the front flexible lip 141 is blocked from the dirt breaking liquid suction passage 143.
As further shown in fig. 3 and 4, the underside 116 of the housing 11 has a recess 1161 at the rear side of the flexible nozzle 14, a base plate 19 is mounted in the recess 1161, and brushes 15 are integrated in the front of the base plate 19, and the brushes 15 are scrubbing brushes with rows of bristles 151. A plurality of liquid discharge ports 17 are integrated at a central position of the substrate 19, and the brush 15 and the liquid discharge ports 17 are disposed in close proximity. The flexible wiper strip 18 is mounted at the rear of the base plate 19, the flexible wiper strip 18 of this example extends in the left-right direction, the flexible wiper strip 18 is capable of realizing wiping of the surface to be cleaned by contact with the surface to be cleaned on the one hand, and is capable of effectively preventing the cleaning liquid dripping from the liquid dripping port 17 from flowing to the rear of the flexible wiper strip 18 beyond the flexible wiper strip 18 on the other hand. The flexible wiper strip 18 is provided with a number of recesses 181 on the rear surface. These dimples 181 can increase the flexibility of the flexible wiper strip 18 and also enhance the wiping performance of the flexible wiper strip 18.
To enable the floor brush 100 of the present example to accommodate a variety of surfaces to be cleaned; in this example, the base plate 19 is rotatably mounted back and forth in the recess 1161 of the housing 11, i.e., about an axis extending in the left-right direction. By means of the oscillating substrate 19, the brush 15 is brought into a first state in which it contacts the surface to be cleaned and a second state in which it is remote from the surface to be cleaned. By the arrangement, a user can conveniently execute cleaning work on surfaces to be cleaned with different materials; as in the first state, the user can simultaneously contact the surface to be cleaned by means of the flexible suction nozzle 14, the brush 15 and the flexible wiper strip 18 to effect cleaning of the surface to be cleaned; while in the second state the brush 15 is remote from the surface to be cleaned, the user can only clean the surface to be cleaned by means of the flexible suction nozzle 14 and the flexible wiper strip 18. In either state, however, the flexible wiper strip 18 is always in close proximity to the surface to be cleaned.
As further shown in fig. 1, the upright 2 comprises an upright 20 rotatably connected at its lower part to the housing 11, the upright 20 being provided with an interface 21 for detachable connection to the vacuum cleaner. A removable cleaning liquid tank 22 and a sewage tank 23 are also arranged on the upright 20. The cleaning solution tank 22 and the sewage tank 23 are disposed one above the other and are both located at the front side of the upright 20. After the sewage tank 23 is mounted to the upright 20, the sewage tank 23 will be in communication with both the suction line 12 and the mouthpiece 21 to effect fluid communication of the suction line 12, the sewage tank 23 and the mouthpiece 21 in sequence. After the cleaning liquid tank 22 is mounted to the upright 20, the cleaning liquid tank 22 is connected with the cleaning liquid output channel, and the cleaning liquid tank 22 conveys the cleaning liquid contained therein to the liquid drop port 17 through the fluid conveying channel. In order to allow the user to autonomously control whether the fluid delivery channel delivers liquid, a mechanical valve (not shown) is provided on the cleaning liquid delivery channel, which mechanical valve may have an external operating knob (not shown) for controlling the operation.
As shown in fig. 7, when the brush head 1 is pushed forward, cleaning liquid is dripped from the drip opening 17 to the surface to be cleaned, a partition is formed between the flexible liquid scraping strip 18 and the surface to be cleaned, the liquid drops falling on the surface to be cleaned are pushed forward by the flexible liquid scraping strip 18 and are always restrained in front of the flexible liquid scraping strip 18, and the flexible liquid scraping strip 18 rubs with the surface to be cleaned to form first cleaning of the surface to be cleaned; in this process, since the liquid droplets are confined in front of the flexible wiper strip 18, it can be ensured that the surface to be cleaned behind the flexible wiper strip 18 is free from residual liquid droplets. In front of the flexible suction nozzle 14 there are small waste or droplets to be sucked up by the flexible suction nozzle 14 and fed into the suction channel 12 through the opening 13.
As shown in fig. 8, at the next moment, when the user pulls the brush head 1 backward, the brush 15 mixes the liquid drops and rubs with the surface to be cleaned to form a second time to clean the surface to be cleaned, the liquid drops are not blocked by the brush 15, the liquid drops are all collected at the flexible suction nozzle 14, the flexible suction nozzle 14 absorbs the liquid drops, and the liquid drops are sent to the suction channel 12 through the opening 13 and then sent to the sewage tank 23; the step can suck up all the liquid drops on the surface to be cleaned, so that the surface to be cleaned is free from water stains. During this movement, both the front flexible lip strip 141 and the rear flexible lip strip 142 of the flexible nozzle 14 rub against the surface to be cleaned, forming a third cleaning of the surface to be cleaned.
Of course, if the surface to be cleaned is not suitable to be brushed with brush 15, substrate 19 may be rotated to bring brush 15 into a second state away from the surface to be cleaned, and subsequent operation is similar to that described above and will not be repeated here.
Fig. 9 shows an example of a vacuum cleaner comprising a surface cleaning floor brush 100 and a hand-held vacuum device 200. The floor brush 100 has the above-described floor brush structure of fig. 1. The hand-held vacuum device 200 in this example can be used alone as a hand-held vacuum cleaner. The air inlet end 201 of the hand-held vacuum device 200 is coupled to the interface 21, and the negative pressure suction created by the hand-held vacuum device 200 can extend to the interface 21 and gradually downward until it reaches the flexible nozzle 14.
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.