CN211511651U - Floor sweeping machine - Google Patents

Abstract

The utility model discloses a sweeper, to the defect that the current sweeper exists in the market, improved the gyro wheel device of sweeper, floated round brush structure, disposable dirt bag subassembly, wind channel structure, dragged ground subassembly and limit brush. The roller device increases the deformation space of the belt, has large friction force with the ground, and has strong obstacle crossing capability when encountering obstacles. When the floating rolling brush structure meets a projecting ground condition or an obstacle, the rolling brush can float upwards and retract. After the disposable dust bag is full of dust, the disposable dust bag only needs to be torn down and thrown away to replace a new dust bag, or the disposable dust bag and the dust bag mounting component are thrown away together to replace a new component. The air duct structure utilizes the bracket of the fan as a part of the air duct, so that the part assembly of the sweeper can be effectively simplified. The mopping assembly realizes uniform water outlet, and the bristles of the side brush have good ground pasting effect and strong cleaning capability.

Description

Floor sweeping machine

Technical Field

The utility model relates to an intelligence domestic appliance, a very particular to be used for intelligence clear, carry out the clear machine of sweeping the floor of room ground automatically.

Background

A floor sweeping robot is one of intelligent household appliances, and can automatically finish the floor cleaning work in a room by means of certain artificial intelligence. Generally, the floor cleaning device adopts a brushing and vacuum mode to absorb and enter the sundries on the floor into the self dust collecting box so as to finish the floor cleaning function.

The floor sweeping robots in the current market are all electromechanical combination products with regular appearance and complicated internal parts. The existing sweeper has the following defects:

1. the sweeper generally runs on the ground through the roller device, when the roller device of the existing sweeper runs to a wet floor or a blanket, the friction force between the roller and the ground is not large enough, the phenomenon that the sweeper slips on the ground easily occurs, meanwhile, when an obstacle is encountered, the obstacle crossing capability is not enough, the service life is short, and the use requirement of a user cannot be met.

2. Along with the popularization of the sweeper, the application scenes of the sweeper are more and more, and the problem brought about is that the ground to be swept is more and more complex, and the ground conditions are more and more diverse. Most of the roller brushes of the sweeper on the market are fixed on a chassis, and when the sweeper meets uneven ground or an obstacle in the using process, the roller brushes are easy to clamp, and the sweeping effect is poor.

Meanwhile, when the sweeper runs into the electric wire on the bottom surface in the working process, the existing rolling brush structure is easy to roll the electric wire into the rolling brush to be wound.

The rolling brush device needs to be fixed on a shell of the sweeper, and the assembly structure of the connecting part of the existing rolling brush device and the shell is complex, so that the cost is high.

3. The sweeper is provided with the dust collecting box for collecting dust, most sweeper machines on the market at present are traditional dust collecting boxes, and after the dust collecting boxes are full of dust, the dust collecting boxes need to be taken out of the sweeper, the dust in the dust boxes is poured off, and then the dust boxes are put into the sweeper, so that the sweeper using the dust collecting boxes has the following defects:

1) dust in the dust box can not be completely poured, and the dust box needs to be cleaned by means of an auxiliary tool, so that the workload of cleaning personnel is increased;

2) meanwhile, after the dust collecting box with the residual dust is put back into the sweeper body, secondary pollution can be caused to the sweeper body.

4. The design of the inside wind channel of the sweeper all adopts the design of an independent wind channel structure, the design mode has the advantages that the wind channel structure can be independently disassembled and assembled, the maintenance is facilitated, the defect of the design mode is that the occupied space is occupied, the size of the sweeping robot is enlarged, the assembly structure is complex, the assembly is complex, and the manufacturing and maintenance cost is high.

5. The floor sweeper generally can set the water tank and the cleaning cloth for realizing the function of mopping the floor, the water outlet mode of the water tank of the existing floor sweeper mainly depends on the dead weight of water, the water tank cannot uniformly discharge water in the water outlet process, and the floor mopping effect is poor. Meanwhile, when the water tank is in a non-working state or shaken, the water tank can automatically seep water, and the use requirement cannot be met.

6. When the sweeper works, the garbage and accumulated dust are gathered at the suction port of the sweeper through the side brush, so that the sweeping capacity of the sweeper is improved, the garbage gathering capacity of the sweeper is influenced by the structure of the side brush, the effect of the side brush used by the sweeper on the market at present is poor, and the sweeping capacity of the sweeper is insufficient.

Disclosure of Invention

The utility model provides a sweeper is equipped with roller device, and roller device's the internal surface in wheel area sets up the elastomeric element subassembly, increases the deformation space in wheel area, and the wheel takes the surface epirelief to be equipped with two rows of dogtooths, and the centre is through slot connection. The friction force between the roller and the ground is large, and the obstacle crossing capability is strong when the roller meets an obstacle.

An embodiment of the utility model provides a sweeper, including the mesochite, be equipped with roller device on the mesochite, roller device includes:

a wheel carrier;

a belt fixed on an outer circumferential surface of the wheel frame; and

and the elastic component assembly is arranged on the inner surface of the belt and used for increasing the deformation space of the belt.

The utility model provides a sweeper has following beneficial effect:

1. the inner surface of the belt is provided with an elastic component assembly, so that the deformation space of the belt is increased, two rows of convex teeth are convexly arranged on the outer surface of the belt, and the middle parts of the two rows of convex teeth are connected through a groove. The friction force between the roller and the ground is large, and the obstacle crossing capability is strong when the roller meets an obstacle.

2. The fixed bolster passes through both ends open-ended bag form software with the floating support and connects, and the floating support can realize the swing of certain angle, drives the round brush subassembly swing in the floating support, when meetting the convex condition in ground or barrier, and the round brush can upwards float the withdrawal, has avoided because the round brush is blocked to bring and sweep the defect that the machine is stranded of unclean or sweeping the floor, the robot is also easy steadily to pass through the barrier.

The fixed support and the floating support are relatively independent, the motor and the transmission device are independently installed on the floating support, when the motor and the transmission device need to be maintained, the floating support only needs to be independently taken out, and the complexity in maintenance is reduced.

The floating support is close to rectangular surface open-ended one end is equipped with the steel wire, and the machine of sweeping the floor during operation, the round brush subassembly rotates, and the steel wire has the effect that prevents the electric wire winding.

The sweeper is provided with an air pump corresponding to the position of the air inlet valve, compressed air is pressurized through the air pump and the guide pipe water supply tank, water seeps out of the water seepage holes through the flow guide cloth, the cleaning cloth is wetted to finish mopping, and the water tank is free from the influence of gravity and can uniformly discharge water under the action of air pressure when in use. Water shut-off during use of the slope can be reduced.

3. After the disposable dust bag is full of dust, the disposable dust bag only needs to be torn down and thrown away and then replaced by a new dust bag, or the disposable dust bag and the dust bag installation part are directly thrown away together and replaced by a new component, so that a cleaner does not need to manually clean the dust collection box, the workload of the cleaner is reduced, and the disposable dust bag is clean and sanitary.

4. The bracket of the fan is used as a part of the air duct and forms an integrated air duct structure with the middle shell and the upper cover, so that the part assembly of the sweeper can be effectively simplified, and the manufacturing and maintenance cost is reduced.

5. The sweeper is provided with an air pump corresponding to the position of the air inlet valve, compressed air is pressurized through the air pump and the guide pipe water supply tank, water seeps out of the water seepage holes through the flow guide cloth, the cleaning cloth is wetted to finish mopping, and the water tank is free from the influence of gravity and can uniformly discharge water under the action of air pressure when in use. Water shut-off during use of the slope can be reduced. In the non-working state, the water tank has no air pressure difference between the internal air pressure and the atmospheric pressure, so that water cannot seep. Due to the action of the flow guide cloth, water leakage can not occur even if the water tank is shaken.

6. The brush hair supporting legs of limit brush is the arc structure downwards by the back that the limit brush body stretches out, and the back is installed on the machine of sweeping the floor to the limit brush, and the machine of sweeping the floor exerts decurrent pressure to the side brush, and the brush hair is pressed and is become, reaches the effect that the brush hair hugs closely ground.

When the side brush works, the extending end of the brush hair supporting leg forms a certain angle with the end surface of the side brush body, so that the ground pasting force of the brush hair is increased, and the ground pasting effect is better.

Drawings

Fig. 1 is a schematic view of an embodiment of the sweeper of the present invention with an upper cover removed.

Fig. 2 is a schematic view of an embodiment of the sweeper of the present invention as viewed from the bottom.

Fig. 3 is a schematic view of an embodiment of the sweeper of the present invention.

Fig. 4 is an exploded view of one embodiment of the roller device of the present invention.

Fig. 5 is a schematic cross-sectional view of an embodiment of the first hub of the present invention.

Figure 6 is a schematic cross-sectional view of one embodiment of the belt of the present invention.

Figure 7 is a schematic view of one orientation of one embodiment of the inventive belt.

Figure 8 is a schematic view of another orientation of an embodiment of the inventive belt.

Fig. 9 is a cross-sectional schematic view of an embodiment of a second hub of the present invention.

Fig. 10 is a schematic cross-sectional view of one embodiment of the first hub, belt and second hub of the present invention mounted together.

Fig. 11 is a schematic view of one orientation of an embodiment of the present invention with a hub, tire, hubcap, and hub axle mounted together.

Fig. 12 is a schematic view of another orientation of an embodiment of the present invention with the hub, tire, hubcap, and hub axle mounted together.

Fig. 13 is an exploded view of an embodiment of the floating roller brush of the present invention.

Fig. 14 is a schematic cross-sectional view of an embodiment of the floating roll brush of the present invention.

Fig. 15 is a schematic view of an embodiment of a bottom cover of the roll brush of the present invention.

Fig. 16 is a schematic structural view of an embodiment of the floating roll brush of the present invention.

Figure 17 is a schematic view of an embodiment of a dust collection box assembly of the present invention.

Fig. 18 is a schematic view of an embodiment of a mounting structure of a dust box assembly according to the present invention.

Figure 19 is a schematic view of an embodiment of the dust box of the present invention.

Figure 20 is a schematic view of an embodiment of a disposable dust bag holder of the present invention.

Figure 21 is a schematic view of one orientation of one embodiment of the blower mount of the present invention.

Figure 22 is a schematic view of another orientation of an embodiment of the present invention.

Fig. 23 is a schematic view of an embodiment of the blower mount of the present invention.

Fig. 24 is a schematic view of an embodiment of the mid-shell air duct structure of the present invention.

Fig. 25 is a schematic view of an embodiment of an upper cover duct of the present invention.

Figure 26 is a schematic view of an embodiment of the floor mopping assembly of the present invention.

Figure 27 is an exploded schematic view of one embodiment of the mopping assembly of the present invention.

Fig. 28 is a schematic view of an embodiment of a lower cover of a water tank of the present invention.

Fig. 29 is a schematic view of an embodiment of a deflector cloth platen of the present invention.

Figure 30 is a schematic cross-sectional view of an embodiment of an air admittance valve of the present invention.

Fig. 31 is a schematic view of an embodiment of the water tank installation of the present invention.

Fig. 32 is a schematic view of an embodiment of an edge brush of the present invention.

Fig. 33 is a schematic view of an embodiment of a side brush installation state of the sweeper of the present invention.

Fig. 34 is a schematic view of the pressed state of the side brush for the sweeper of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Referring to fig. 1 to 2 and 4, in an embodiment of the present invention, the sweeper includes a middle housing 100, a roller device 200 is disposed on the middle housing 100, the roller device 200 includes a wheel frame and a wheel belt 220, the wheel frame includes a first wheel hub 210 and a second wheel hub 230, and the wheel belt 220 is fixed on an outer circumferential surface of the wheel frame; the inner surface of the belt 220 is provided with an elastic member assembly for increasing a deformation space of the belt 220.

Referring to fig. 6, in an embodiment of the present invention, the belt 220 includes a belt body 2201, the inner surface of the belt body 2201 is provided with a support ring 2205 having a T-shaped cross section, the two sides of the support ring 2205 are provided with a first support rib 2204 and a second support rib 2208 uniformly distributed along the circumference, the heights of the first support rib 2204 and the second support rib 2208 are equal, the first support rib 2204 and the second support rib 2208 are uniformly distributed on the circumference in a staggered manner, the bottom surfaces of the first support rib 2204 and the second support rib 2208 are fixedly connected to the inner surface of the belt body 2201, and the side surfaces of the first support rib 2204 and the second support rib 2208 are fixedly connected to the side surfaces of the support ring 2205.

In order to further enhance the elasticity of the roller device, a plurality of first teeth 2203 and a plurality of second teeth 2207 arranged in a protruding manner along the circumferential direction of the outer surface of the belt body 2201 may be provided, the first teeth 2203 and the second teeth 2207 are correspondingly arranged and are spaced to form grooves 2202, the valleys of the first teeth 2203 and the second teeth 2207 are equal in height and lower than the surface of the grooves 2202, and the peaks of the first teeth 2203 and the second teeth 2207 are equal in height and higher than the surface of the grooves 2202.

Further, referring to fig. 7 and 8, the crest of first tooth 2203 corresponds to the trough of second tooth 2207, and the trough of first tooth 2203 corresponds to the crest of second tooth 2207. And the crest of the first tooth 2203 is located on the same radial line as the first support rib 2204, and the crest of the second tooth 2207 is located on the same radial line as the second support rib 2208.

The first support rib 2204 and the second support rib 2208 increase the elasticity of the whole roller device, improve the obstacle crossing capability of the roller device, and the first convex tooth 2203 and the second convex tooth 2207 further enhance the friction performance of the roller device.

Further, referring to fig. 4-6, 9-10, in an embodiment of the present invention, the wheel frame may include a first hub 210 and a second hub 230, the first hub 210 includes a first hub body 2101, the first hub body 2101 is provided with a first hub recess 2104, a first hub first boss 2103 and a first hub second boss 2105, the first hub second boss 2105 is provided with a first spigot 2107, the second hub 230 is provided with a second hub body 2301, the second hub body 2301 is provided with a second hub recess 2304, a second hub first boss 2303 and a second hub second boss 2306, the second hub second boss 2306 is provided with a second spigot 2307, the support ring 2205 of the wheel belt 220 is respectively engaged with the first hub first boss 2303 and the first hub second boss 2305 of the first hub 210, and engaged with the second hub recess 2304, the second hub first boss 2103 and the second hub second boss 3206 of the second hub 230, the first spigot 2107 and the second spigot 2307 cooperate to achieve the mutual engagement of the first hub 210 and the second hub 230, and to clamp the belt 220 therebetween.

The first hub body 2101 is provided with a first hub baffle ring 2102, the second hub body 2301 is provided with a second hub 2302, and after the first hub 210 and the second hub 230 are mutually clamped, the first hub 2102 and the second hub baffle ring 2302 cover the first support rib 204 and the second support rib 2208, so that the whole device is very attractive.

After the first hub 210 and the second hub 230 are engaged with each other, the plurality of screws 240 fix the first hub 210 and the second hub 230 together by means of screw connection; the second hub 230 has an axle hole in the middle, and the hub axle 250 is installed in the axle hole, and both are fixed by clamping, so that the rotation of the hub axle 250 can drive the whole roller device 200 to rotate.

Fig. 11 is a schematic view of one orientation of an embodiment of the present invention with the hub, tire, hubcap, and hub axle mounted together, as viewed from the orientation of the first hub 210. Fig. 12 is a schematic view of another orientation of an embodiment of the present invention with the hub, tire, hubcap, and hub axle mounted together, as viewed from the orientation of the second hub 230. When the roller device travels, the deformation space of the inner ring rib position of the belt 220 and the outer ring tire pattern is large, compared with the existing wheel in the market, the deformation space is large, the friction force can be increased, the obstacle crossing capability of the arc-surface obstacle is improved, and the service life is prolonged.

Referring to fig. 1 to 2 and fig. 13 to 16, in an embodiment of the present invention, a floating rolling brush 300 is disposed on the middle shell 100, and includes a fixed bracket 306 and a floating bracket 301, the floating bracket 301 is a hollow arc-shaped body structure and is designed with a rectangular opening, the fixed bracket 306 and the floating bracket 301 are connected through a bag-shaped soft body 305 with two open ends, the bag-shaped soft body 305 is connected with the floating bracket 301 through a soft body bracket 304, in this embodiment, the bag-shaped soft body 305 mainly functions to pass dust, and at the same time, the bag-shaped soft body 305 is made of a soft body material, so as to realize flexible constraint on the swing angle of the movable bracket 301. The fixed bracket 306 is provided with a floating bracket lower limit portion 3064 and a floating bracket upper limit portion 3065 for limiting the swing angle of the floating bracket 301, in this embodiment, the floating bracket upper limit portion 3065 is an inclined surface on the fixed bracket 306. The connection parts of the fixed bracket 306 and the floating bracket 301 with the bag-shaped soft body 305 are respectively provided with a fixed bracket dust through opening 3061 and a soft bracket dust through opening 3042, and the fixed bracket dust through opening 3061 is matched with a dust inlet of the dust collection box. The rolling brush assembly 303 is installed in the hollow arc-shaped body structure of the floating support 301, so that garbage and dust can be swept into the dust box.

The motor 302 drives the rolling brush assembly 303 to rotate in the floating bracket 301 through a transmission device; the bottom end of the floating support 301 is provided with a rolling brush bottom plate 311, the rolling brush assembly 303 is fixed in the floating support 301, one end of the floating support 301, which is far away from the fixed support 306, is provided with two rotating arms 3011, the rotating arms 3011 are provided with rotating convex shafts 3012, and the floating support 301 is hinged and fixed on the middle shell 100.

The floating support 301 is provided with a motor 302 mounting part, the motor mounting part is connected with a transmission bin cover 310, the floating support 301 and the transmission bin cover 310 form a transmission bin, and a transmission device is contained in the transmission bin.

A fixing hole position 3041 is arranged on the soft support 304; the fixing hole 3041 is used to fix the soft support 304 on the floating support 301, a soft support mounting rib 3013 is disposed on the floating support 301, and the soft support 304 is mounted on the floating support 301 through the cooperation of the soft support mounting rib 3013 and the fixing hole 3041.

In one embodiment of the present invention, the bag-shaped soft body 305 and the soft body support 304 can be combined together by two-shot molding.

The bag-shaped soft body 305 comprises a soft dust passing port 3051, a soft telescopic arm 3053 and a soft matching part 3054 are arranged on a bag-shaped soft body 305, one end of the bag-shaped soft body 305, which is close to the fixed support 306, is of a flange disc-shaped structure, a plurality of soft fixing holes 3052 are arranged on the flange surface, a plurality of fixed columns 3062 matched with the soft fixing holes 3052 are arranged on the fixed support 306 along the periphery of the fixed support dust passing port 3061, and the soft fixing holes 3052 can be fixed on the fixed columns 3062 in a hot melting mode. The fixing bracket 306 is fixed to the middle case 100 through the screw fixing hole 3063.

The end face of the lower end of the movable bracket 301 far away from the advancing direction of the floating rolling brush assembly 303 is provided with a mudguard 308, and the mudguard 308 is used for preventing dust which is not swept or rolled up by the rolling brush from falling into a swept area and also can be used for shoveling stubborn ground stains which cannot be swept by the rolling brush. The end of the floating support 301 close to the rectangular surface opening is provided with a steel wire 309, one end of the steel wire 309 is fixed in a corresponding hole on the rolling brush bottom plate 311, the other end of the steel wire 309 is fixed among the rolling brush bottom plate 311, the rolling brush bottom plate support 307 and the mud guard 308, when the sweeper works, the rolling brush assembly 303 rotates, and the steel wire 309 has the effect of preventing the electric wire from winding.

The roller brush bottom plate 311 is provided with a latch 3111 and a fixing rib 3112 for fixing the roller brush bottom plate 311 on the floating bracket 301.

The latch 3111 is provided with a spring, and two fingers can compress the latch 3111 to release the buckle on the latch 3111, so as to take down the roller brush bottom plate 311 from the roller brush 300.

Referring to fig. 1 to 2, in an embodiment of the present invention, a disposable dust bag assembly is disposed on the middle shell 100, and includes a disposable dust bag and a dust bag mounting component, the disposable dust bag is a ventilating bag with an open end for absorbing dust collected by the sweeper; the dust bag mounting component is used for fixing the disposable dust bag in the sweeper.

The disposable dust bag component is arranged in the sweeper in two ways, one way is that the disposable dust bag component is directly arranged on the middle shell 100 and matched with the air outlet of the rolling brush part; one is to place the disposable dust bag assembly in a dust collection bin.

The disposable dust bag component can be taken out from the sweeper or the dust collection box in two modes, one mode is to integrally take the disposable dust bag component out from the sweeper or the dust collection box, and at the moment, the connection mode of the disposable dust bag and the dust bag installation part can be separable or inseparable. Another way to remove the disposable dust bag assembly from the sweeper is to leave the dust bag mounting member in the sweeper or the dust collection box, and only remove the disposable dust bag from the sweeper or the dust collection box, at which time, the connection between the disposable dust bag and the dust bag mounting member is detachable, for example, the dust bag is adhered to the dust bag mounting member.

Dust collected by the sweeper enters the disposable dust bag from the air inlet of the dust collection box or the air outlet of the rolling brush part, so that the opening of the disposable dust bag is required to be matched with the air inlet of the dust collection box or the air outlet of the rolling brush part.

Fig. 17 to 19 show an embodiment of the dust collecting box for placing the disposable dust bag component of the present invention, in this embodiment, the components of the disposable dust bag component and the dust collecting box include a dust collecting box body 410, a dust bag holder 420 and a disposable dust bag 402, the dust collecting box body 410 is a box body matched with the shape of the fixing holder 306, and is provided with a dust collecting box handle 401 and a box cover 432, the box cover 432 is a part of the dust collecting box filtering component 300, the box cover 432 is provided with an air outlet, the dust bag holder 420 is placed in the dust collecting box body 410, and can be fixed in the dust collecting box body 410, or can be detachably installed in the dust collecting box body 410.

The dust bag support 420 comprises a fixing portion 421 and a dust bag mounting portion 423, a parallel sliding surface 422 is arranged on the fixing portion, a mounting sliding groove 413 is arranged in the dust collection box body 410, and the dust bag support 420 can slide up and down on the inner wall of the dust collection box body 410 through the matching of the mounting sliding groove 413 and the sliding surface 422. A dust bag holder vent 424 is provided on the dust bag mounting portion 423 to mate with the dust box vent 412 on the dust box body 410. In order to seal the dust bag mounting portion 423 with the air inlet surface of the dust box body 410, a sealing strip 425 is provided between the dust bag mounting portion 423 and the air inlet surface of the dust box body 410. When the box cover 432 is covered, the fixing part 421 can be pressed, and the dust bag holder 420 can be firmly fixed in the dust collecting box body 410 without shaking.

The dust box filter assembly 430 is used for retaining dust and sundries entering the dust box 410 in the dust box, and air and dust for dust collection generated by the fan of the sweeper enter from the dust box ventilation opening 412, pass through the dust bag support ventilation opening 424, enter the disposable dust bag 402, remain in the disposable dust bag 402, and continue to be blown out from the dust box filter assembly 430 to enter the air duct.

In the filter assembly 430, the box cover 432 may be a hollow rectangular frame body, a second sealing strip 431 is disposed between the box cover 432 and the housing of the dust collecting box body 410 for sealing between the dust collecting box body 410 and the box cover 432, a filter screen is injection-molded at one end of the box cover 432 close to the dust collecting box body 410, a first sealing strip 433, a sponge screen 434, a filter screen 435, a filter screen cover 436 and a third sealing strip 437 are sequentially disposed on one side of the box cover 432 away from the dust collecting box body 410, and the filter screen is located in front of the sponge screen 434. The third sealing strip 307 seals between the dust collecting box body 410 and the air duct, and air enters the fan from the air outlet of the dust collecting box, passes through the air duct and is discharged from the air outlet.

In an embodiment of the present invention, the material used for the filter screen cover 436 of the filter screen cover is a soft glue, which can be directly sealed with the air suction channel, and can also be sealed with the box cover 432, so that the first sealing strip 433 and the third sealing strip 307 are not needed in the filter assembly 430.

The box cover 432 can be connected with the dust collection box body 410 in a hinged mode, the other end, far away from the hinged mode, of the dust collection box body 410 is provided with a second avoiding groove 413, the side wall of the box body is provided with a first avoiding groove 411, a certain space is formed between the handle 401 and the dust collection box body 410, and a hand can conveniently stretch into the handle 401 to lift the handle.

The second avoiding groove 413 is provided with a convex rib 414, the box cover 432 is provided with a corresponding arc-shaped handle plate 4311, the handle plate 4311 is provided with a through hole, and the buckling of the box cover 432 and the dust collecting box body 410 is realized by the buckling of the handle plate 4311 and the convex rib 414.

The filter screen cover 436 is buckled in the box cover 432, the installation convex rib 438 is arranged around the filter screen cover 436, the installation convex rib 438 is in interference fit with the box cover 432 to realize the installation of the filter screen cover 436 and the box cover 432, the box cover avoiding groove is arranged at the upper end of the box cover 432, fingers can extend into the box cover avoiding groove to pull up the filter screen cover 436.

The middle shell 100 is provided with a dust collecting box bin, the dust collecting box is installed in the dust collecting box bin, two ends of the handle 401 are provided with two locating protrusions 412 in the shape of a semicircular sphere, the corresponding position of the sweeper is provided with a locating groove, the fixing of the dust collecting box component on the sweeper is realized through the matching of the locating protrusions 412 and the locating grooves, and the dust collecting box component is pressed tightly by the upper turning cover. The box cover 432 is internally provided with a magnet mounting groove 4310, the magnet 4309 is placed in the magnet mounting groove 4310, the sweeper is provided with a corresponding Hall element, after the dust collection box assembly is placed in the dust collection box bin, the magnet and the Hall element are induced to detect whether the dust collection box is placed, and a signal indicating whether the dust collection box is installed is sent to the control system.

Referring to fig. 3 and 20, in an embodiment of the present invention, the dust bag mounting component may be a dust bag bracket 440 as shown in fig. 20, the dust bag bracket 440 is directly installed in the middle shell 100, an installation inclined plane 441 cooperating with the fixing bracket 306 is provided on the dust bag bracket 440, a dust through port 442 is provided on the installation inclined plane, a first installation portion 443 is provided at the upper end of the installation inclined plane 441, a first sliding surface 444 is provided on the first installation portion 443, a sliding groove cooperating with the first sliding surface 444 is provided on the middle shell 100, and is used for fixing the dust bag bracket 440 in the middle shell 100, for more stable fixing the dust bag bracket 440 in the middle shell 100, a clamping surface 445 may also be provided at the lower end of the installation inclined plane 441, a second sliding surface 446 is provided on the clamping surface 445, and a sliding groove cooperating with the second sliding surface 446 is provided on the middle shell 100.

Be equipped with disposable dust bag subassembly mounting groove 101 on mesochite 100, the higher authority is equipped with upper cover 900, be equipped with on the upper cover 900 with disposable dust bag subassembly mounting groove 101 complex opening 911, and flip hole 915, flip 912 is connected to upper cover 900, be equipped with flip knot 913 on flip 912, flip 912 covers fits on upper cover 900, form the installation space of a disposable dust bag subassembly of relative confined in mesochite 100, flip knot 913 and flip hole 915 cooperation, realize flip 912 covers fits on upper cover 900, be equipped with sealing strip 914 on the upper cover 900, the installation space of having guaranteed disposable dust bag subassembly is in the inside sealed of machine of sweeping the floor.

The wind and dust for dust collection generated by the fan enter from the air outlet of the rolling brush assembly, pass through the dust outlet 442 and enter the disposable dust bag, the dust is left in the disposable dust bag, and the wind blows out from the disposable dust bag and enters the air channel from the air outlet in the shell 4.

The flip 912 and the upper cover 900 can fix the pressing sealing strip 914 through the fastening position, and also can fix the pressing sealing strip 914 through the magnet adsorption.

Referring to fig. 1 and 21 to 23, in an embodiment of the present invention, a fan assembly 600 is disposed on the middle casing 100, and includes a fan bracket, the fan is fixed on the fan bracket, a bracket air duct communicated with the dust box air outlet of the sweeper is disposed on the bracket, a bracket air duct air inlet 612 is communicated with the dust box air outlet of the sweeper in a matching manner, and a bracket air duct air outlet 614 is communicated with the air inlet of the fan. The fan mount may include an air duct wall 610 and a fan mount 611, with a mount air duct inlet 612 located on the air duct wall 610 and a mount air duct outlet 614 located on the fan mount 611. The fan fixing support 617 is provided with a through hole 618, and the fan is fixed on the middle shell 100 through the fan fixing support 617, so as to compress the fan support. The screw passes through the through-hole 618 and installs fan fixed bolster 617 on mesochite 100, is equipped with fan shock attenuation cover on the fan, and fan shock attenuation cover is located between mesochite 100 and the fan for reduce the influence of fan vibration.

Referring to fig. 1, fig. 21 to fig. 22, and fig. 24 to fig. 25, in an embodiment of the present invention, a sweeper air duct structure 500 is disposed on the middle shell, and may include the fan assembly 600 described in the above embodiment, the fan air outlet is communicated with an air duct formed by the middle shell 100, the fan assembly 600, and the upper cover body 900, and an air duct air outlet 907 is disposed at an end of the air duct.

The air channel comprises an outer air channel wall, an inner air channel wall, an upper air channel wall and a lower air channel wall, the upper air channel wall is a part of the upper cover 900 corresponding to the air channel, the lower air channel wall is a part of the middle shell 100 corresponding to the air channel, the middle shell 100 is provided with a lower side outer air channel wall 104 and a lower side inner air channel wall 106, and the upper cover 900 is provided with a corresponding upper cover outer air channel wall 903 and an upper cover inner air channel wall 905; the lower outer air duct wall 104 is provided with a lower outer air duct wall spigot 103, the upper cover outer air duct wall 903 is provided with an upper cover outer air duct wall spigot 904, and the lower outer air duct wall spigot 103 and the upper cover outer air duct wall spigot 904 are matched with each other. The lower inner air duct wall 106 is provided with a lower inner air duct wall spigot 105, the upper inner cover air duct wall 905 is provided with an upper inner cover air duct wall spigot 906, the lower inner air duct wall spigot 105 is matched with the upper inner cover air duct wall spigot 906, and the air outlet 907 is arranged on the upper cover 900.

The middle shell 100 is provided with a limiting sliding groove 102, the fan support is provided with a first positioning portion 613 and a second positioning portion 616, and the limiting sliding groove 102 is matched with the first positioning portion 613 and the second positioning portion 616 to fix and limit the fan support on the middle shell 100.

Referring to fig. 1 to 2 and 26 to 28, in an embodiment of the present invention, a mopping assembly 700 is disposed on the middle housing 100, and includes a water tank 710 and a cleaning cloth assembly 720, the water tank 710 includes a water tank middle housing 7101, an upper water tank cover 7108 is connected to the upper end of the water tank middle housing 7101, a lower water tank cover 7102 is connected to the lower end of the water tank middle housing 7101, and the water tank cover 7102 is provided with a water seepage hole 7113 for water to slowly seep out from the water tank 710;

the water seepage hole 7113 is provided with a guide cloth 7103, the guide cloth 7103 is fixed on the upper surface of the lower cover 7102 of the water tank and in the water seepage hole 7113, and water seeps out of the water seepage hole 7113 through the guide cloth 7103.

The water tank 710 is connected with an air pump, and the air pump compresses air to pressurize the water tank 710, so that water seeps out of the water seepage holes 7113 through the flow guide cloth 7103.

One scheme for pressurizing the water tank by the air pump is that a guide pipe 7107 is arranged on the side wall of a water tank middle shell 7101, one end of the guide pipe 7107 is connected with an air inlet valve 7106, the other end of the guide pipe 7107 penetrates through the side wall of the water tank middle shell 7101 and enters the inside of the water tank middle shell 7101, and the air inlet valve 7106 is connected with the air pump arranged on the sweeper.

Under the action of air pressure, the water is not influenced by gravity and can be discharged uniformly. The water cut-off phenomenon can be reduced in the use process of the slope, and water cannot seep due to the fact that the air pressure in the water tank is not different from the atmospheric pressure in the non-working state.

Referring to fig. 30, in an embodiment of the present invention, the air intake valve 7106 may include an air valve connector 7115, the air valve connector 7115 is connected to the air valve rear cover 7118, a second sealing ring 7121 is disposed between the air valve connector 7115 and the air valve rear cover 7118, the air valve connector 7115 may be a cylinder having a through hole, an air valve connector hole 7116 is disposed in the cylinder, an air valve spring 7122 is disposed in the air valve connector hole 7116, the air valve spring 7122 is a compression spring, the air valve rear cover 7118 is also a cylinder having a through hole, an air valve rear cover hole 7117 is disposed in the cylinder, an air valve pressing shaft 7119 is disposed in the air valve rear cover hole 7117, one end of the air valve pressing shaft 7119 is sleeved with the air valve spring 7122, the other end of the air valve rear cover 7118 is in contact connection, a first sealing ring 7120 is disposed between the air valve pressing shaft 7119 and the air valve rear cover 7118, the air valve spring 7122 pushes the air valve pressing shaft 7119 to. The cavity of the air inlet valve 7106 and the water tank 710 are connected to form a closed space, after the water tank 710 is installed on the sweeper, the water pump rubber sleeve props against the air valve pressing shaft 7119, the air valve spring 7122 is compressed, the first sealing ring 7120 loses the sealing effect, the sealing effect is realized by the water pump rubber sleeve, the air pump inflates the cavity of the air inlet valve 7106 and enters the water tank 710, the air pressure in the water tank 710 is increased, the air pressure in the water tank 710 is larger than the external atmospheric pressure, the water tank 710 discharges water, and after the air pump stops working, the sealing between the air valve and the air pump is continuously.

Referring to fig. 26 to 29, in an embodiment of the present invention, the flow guide cloth 7103 is fixed on the upper surface of the water tank lower cover 7102 through the pressing plate 7104, the pressing plate 7104 is provided with a pressing plate protrusion 7114 on the surface contacting with the water tank lower cover 7102, the flow guide cloth 7103 is pressed into the water seepage hole 7113, two pressing plate fixing through holes 7113 are provided on the pressing plate 7104, and are matched with the pressing plate mounting screw holes 7114, and the pressing plate 7104 is fixed on the upper surface of the water tank lower cover 7102 through screws.

Referring to fig. 27, in an embodiment of the present invention, in order to conveniently detachably mount the water tank 710 on the sweeper, a mounting groove 7105 may be provided on the water tank middle shell 7101 for mounting the water tank 710 on the sweeper.

In order to conveniently add water into the water tank 710, a water injection hole 7109 may be provided on the water tank upper cover 7108, and the water injection hole 7109 may be covered by a sealing cover 7110,

referring to fig. 26 and 27, in an embodiment of the present invention, a button 7111 may be disposed on the water tank middle shell 7101, a protruding structure is disposed on the button 7111, the button 7111 passes through the water tank upper cover 7108 after being installed, the button 7112 is connected to the lower end of the button 7111, the button 7112 is a compression spring, and the elastic force of the spring 7112 is utilized to separate the water tank 710 from the sweeper when the button 7111 is pressed down, when the button is released, the elastic force of the button 7112 enables the button 7111 to pass through the water tank upper cover 7108, and the button 7111 is utilized to realize the integral locking with the sweeper.

The lower surface of the water tank lower cover 7102 is connected with a cleaning cloth assembly 720, the cleaning cloth assembly 720 can comprise a cleaning cloth fixing plate 7201, the lower surface of the cleaning cloth fixing plate 7201 is connected with a cleaning cloth 7203, and water seeped out of the water tank 710 can reach the cleaning cloth 7203 through the cleaning cloth fixing plate 7201 to realize the floor mopping function.

The cleaning cloth fixing plate 7201 is provided with a water through hole 7210, and the position and size of the water through hole 7210 are matched with the position and size of the water seepage hole 7113.

Can fix cleaning cloth 7203 on cleaning cloth fixed plate 7201 with magic subsides 7202, with low costs, it is all more convenient that cleaning cloth installs and take off, in order to solve the not firm problem inadequately of adhesion force that the magic was pasted, can set up cleaning cloth joint support portion 7208 at cleaning cloth fixed plate 7201, cleaning cloth 7203 includes that the magic pastes portion 7204 and cup joints portion 7205, cleaning cloth joint support portion 7208 can cup joint the installation with cleaning cloth 7203. One side of the cleaning cloth 7203 is sleeved into the cleaning cloth connecting support portion 7208 and then fixed by the hook and loop fastener 7202.

Refer to fig. 27, fig. 28, for convenience the installation of cleaning cloth fixed plate 7201 on water tank lower cover 7102 and take off, the utility model discloses an embodiment, be equipped with two lower cover recesses on the water tank lower cover 7102, be equipped with two bosss on the cleaning cloth fixed plate 7201, be equipped with fixed knot 7209 on the boss, boss and lower cover recess cooperation, fixed knot 7209 passes through plastic deformation card in the cleaning cloth fixed plate installation muscle 7115 department of water tank lower cover 7102 groove, realize the dismantlement of cleaning cloth fixed plate 7201 and water tank 710 fixed, and simultaneously, limit structure 7116 and cleaning cloth fixed plate installation muscle 7115 realize that water tank lower cover 7102 is spacing to cleaning cloth fixed plate 7201, cleaning cloth fixed plate 7201 can float between limit structure 7116 and cleaning cloth fixed plate installation muscle 7115.

The cleaning cloth fixing plate 7201 may be provided with a magnet 7207. The magnet 7207 is arranged in the groove of the boss of the cleaning cloth fixing plate and is fixed by a magnet fixing rubber plug 7206. The hall switch is installed near the position of magnet 7207 on the quick-witted of sweeping the floor, can judge whether the water tank is installed through whether hall switch detects magnet 7207.

Referring to fig. 31, in an embodiment of the present invention, a sweeper groove 101 is disposed on the middle housing 100, two positioning ribs 102 are disposed in the sweeper groove 101, and the mounting groove 7105 on the water tank middle housing 7101 is engaged with the positioning ribs 102 to realize the engagement between the water tank 710 and the middle housing.

Referring to fig. 2 and fig. 32 to 34, in an embodiment of the present invention, a sweeper side brush 800 is disposed on the middle casing 100, and includes a side brush body 801, a plurality of bristle support feet 802 are disposed on the side brush body 801, bristles 803 are mounted at the ends of the bristle support feet 802, and the bristles 803 are inserted into the ends of the bristle support feet 802 and are fixed by gluing. The whole extending end of the bristle supporting leg 802 is obliquely arranged at an acute angle with the horizontal end face of the side brush body 801, the rotation direction of the side brush is shown in fig. 33 during working, the extending end of the bristle supporting leg forms a certain angle with the end face of the side brush body, the ground attaching force of the bristles is increased, and the ground attaching effect is better.

The bristle supporting legs 802 are of a downward arc-shaped structure after extending out of the side brush body 801, height difference is generated between the side brush body and the bristles, after the side brush is installed on the sweeper, the sweeper applies downward pressure to the side brush, and the bristles are pressed to deform, so that the effect that the bristles are tightly attached to the ground is achieved.

The side brush body 801 is installed on the sweeper through the side brush installation part, the side brush installation part comprises a support 805 and a support cover 804, the support 805 is in the shape of a semi-sphere, a cylinder 806 which is upwards long is arranged in the bowl body on the support 805, and an installation groove 807 is formed in the cylinder and used for fixing the side brush body 801 on a transmission structure of the sweeper and driving bristles 803 to rotate.

The bracket 805 body is positioned in the side brush body 801 and is attached to the side brush body 801, and the side brush body 801, the bracket 805 and the bracket cover 804 are integrally molded by injection.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (20)

1. The sweeper comprises a center shell, wherein the center shell is provided with a roller device, and the roller device is characterized by comprising:

a wheel carrier;

a belt fixed on an outer circumferential surface of the wheel frame; and

an elastic member assembly disposed on an inner surface of the belt for increasing a deformation space of the belt.

2. The sweeper according to claim 1, wherein the inner surface of the wheel belt is provided with a supporting ring with a T-shaped cross section, the elastic component assembly is composed of a plurality of first supporting ribs and a plurality of second supporting ribs which are arranged on two sides of the supporting ring, the first supporting ribs and the second supporting ribs are equal in height, the first supporting ribs and the second supporting ribs are distributed uniformly in a staggered manner, the bottom surfaces of the supporting ribs are fixedly connected to the inner surface of the wheel belt, and the side surfaces of the supporting ribs are fixedly connected to the side surfaces of the supporting ring.

3. The sweeper according to claim 2, wherein the outer surface of the wheel belt is convexly provided with a plurality of first convex teeth and a plurality of second convex teeth which are arranged in a circumferentially extending manner, the first convex teeth and the second convex teeth are correspondingly arranged and are provided with grooves at intervals, the valleys of the first convex teeth and the valleys of the second convex teeth are equal in height and lower than the surfaces of the grooves, and the peaks of the first convex teeth and the second convex teeth are equal in height and higher than the surfaces of the grooves; the crest of the first tooth corresponds to the valley of the second tooth, and the valley of the first tooth corresponds to the crest of the second tooth.

4. The sweeper according to claim 3, wherein the peaks of the first raised teeth are on the same radial line as the first support web and the peaks of the second raised teeth are on the same radial line as the second support web.

5. The sweeper according to claim 2, wherein the wheel carrier includes a first hub with a first hub groove and a second hub with a second hub groove, the support ring engaging the first and second hub grooves, the first and second hubs sandwiching the wheel belt.

6. The sweeper according to claim 1 or 2, wherein the middle shell is provided with a floating roller brush, the roller brush comprises a fixed support and a floating support, the floating support is of a hollow arc-shaped body structure and is designed with a rectangular surface opening, the fixed support and the floating support are connected through bag-shaped soft bodies with openings at two ends, the joints of the fixed support and the floating support and the bag-shaped soft bodies are respectively provided with a fixed support dust through port and a floating support dust through port, a roller brush assembly is installed in the hollow arc-shaped body structure of the floating support, and a motor drives the roller brush assembly to rotate in the floating support through a transmission device; the bottom end of the floating support is provided with a rolling brush bottom plate, the rolling brush assembly is fixed in the floating support, and one end, far away from the fixed support, of the floating support is hinged and fixed on the middle shell.

7. The sweeper according to claim 6, wherein a soft support is arranged on the floating support and used for fixing the bag-shaped soft body on the floating support, one end of the bag-shaped soft body close to the fixed support is of a flange disc-shaped structure, a plurality of through holes for fixing are arranged on the flange surface, and a plurality of positioning columns matched with the through holes for fixing are arranged on the fixed support along the periphery of the dust through hole of the fixed support; the soft body hole is matched with the positioning column for hot melting and fixing.

8. The sweeper according to claim 6, wherein a steel wire is arranged at one end of the floating bracket close to the opening of the rectangular surface, and a mudguard is arranged on the end surface of the lower end of the floating bracket far away from the advancing direction of the rolling brush assembly.

9. The sweeper according to claim 6, wherein the floating bracket is provided with a motor mounting portion, the motor mounting portion is connected with a transmission bin cover, the floating bracket and the transmission bin cover form a transmission bin, and the transmission device is contained in the transmission bin.

10. The sweeper of claim 1 or 2, wherein the center housing is provided with a disposable dust bag assembly comprising:

the disposable dust bag is a ventilating bag with an opening at one end and is used for absorbing the dust collected by the sweeper;

a dust bag mounting component for securing the disposable dust bag in the sweeper;

the disposable dust bag or disposable dust bag assembly can be removed from the sweeper.

11. The sweeper of claim 1 or 2, wherein the center housing is provided with a disposable dust collection box assembly comprising:

the middle shell is provided with a middle shell, and a disposable dust bag component is arranged in the middle shell;

a disposable dust bag assembly located within the dust collection box, comprising:

the disposable dust bag is a ventilating bag with an opening at one end;

a dust bag mounting member for fixing the disposable dust bag in the dust collection box;

the disposable dust bag or disposable dust bag assembly may be removed from the dust collection bin.

12. The sweeper according to claim 11, wherein the dust collecting box is provided with a box cover, the box cover is provided with an air outlet, the air outlet is provided with an air filtering component for retaining dust and foreign matters entering the dust collecting box in the dust collecting box, and the filtering component sequentially comprises: second sealing strip, lid, first sealing strip, sponge, filter screen lid, third sealing strip, the lid bottom is equipped with the filter screen, moulds plastics the laminating in the lid bottom through the mould in.

13. The sweeper according to claim 1 or 2, wherein a fan assembly is further provided on the center housing, the fan assembly comprising: the fan is fixed on the bracket; the support is provided with a support air duct communicated with an air outlet of the sweeper dust box, an air inlet of the support air duct is communicated with the air outlet of the sweeper dust box in a matched mode, and an air outlet of the support air duct is communicated with an air inlet of the fan.

14. The sweeper of claim 13, wherein:

the fan air outlet is communicated with an air duct, and an air duct air outlet is formed in the end of the air duct;

the air duct comprises an outer air duct wall, an inner air duct wall, an upper air duct wall and a lower air duct wall;

the upper air duct wall is a part of the upper cover corresponding to the air duct, and the lower air duct wall is a part of the middle shell corresponding to the air duct;

the middle shell is provided with a lower outer air duct wall and a lower inner air duct wall, and the upper cover is provided with a corresponding upper outer air duct wall and a corresponding upper inner air duct wall; and

the outer air duct wall of downside with the cooperation of the outer air duct wall of upside, the air duct wall in the downside with the cooperation of the air duct wall in the upside.

15. The sweeper according to claim 1 or 2, wherein a water tank is provided on the center housing;

the water tank comprises a water tank middle shell, the upper end of the water tank middle shell is connected with the water tank upper cover, and the lower end of the water tank middle shell is connected with the water tank lower cover;

the lower cover of the water tank is provided with a water seepage hole for water to slowly seep out of the water tank; and

the water tank is characterized in that a diversion cloth is arranged at the water seepage hole, the diversion cloth is fixed on the upper surface of the lower cover of the water tank and in the water seepage hole, and water seeps out of the water seepage hole through the diversion cloth.

16. The sweeper according to claim 15, wherein the lower surface of the lower cover of the water tank is connected with a cleaning cloth fixing plate, the lower surface of the cleaning cloth fixing plate is connected with a cleaning cloth, and water seeping from the water tank can pass through the cleaning cloth fixing plate to reach the cleaning cloth.

17. The sweeper according to claim 15, wherein a conduit is provided on the side wall of the water tank center housing, one end of the conduit is connected to an air inlet valve, the other end of the conduit penetrates through the side wall of the water tank center housing and enters the interior of the water tank center housing, and the air inlet valve is connected to an air pump; the air inlet valve comprises an air valve joint, the air valve joint is connected with an air valve rear cover, a compression spring is arranged in the air valve joint, an air valve pressing shaft is arranged in the air valve rear cover, one end of the air valve pressing shaft is sleeved with the compression spring, the other end of the air valve pressing shaft is in contact connection with the air valve rear cover, a sealing ring is arranged between the air valve pressing shaft and the air valve rear cover, and the compression spring pushes the air valve pressing shaft to compress the sealing ring through elasticity, so that sealing between the air valve pressing shaft and the air valve rear cover.

18. The sweeper according to claim 15, wherein the deflector cloth is fixed to the upper surface of the lower cover of the water tank by a pressing plate, and a protrusion is provided on the surface of the pressing plate contacting the lower cover of the water tank to press the deflector cloth into the water seepage hole.

19. The sweeper according to claim 1 or 2, wherein the middle shell is provided with an edge brush for the sweeper, and the edge brush comprises an edge brush body, the edge brush body is provided with a plurality of brush supporting feet, bristles are mounted at the tail ends of the brush supporting feet, the extending ends of the brush supporting feet are integrally and obliquely mounted at an acute angle with the horizontal end face of the edge brush body, and the extending ends of the brush supporting feet form a certain angle with the end face of the edge brush body, so that the ground attaching force of the bristles is increased, and the ground attaching effect is better.

20. The sweeper according to claim 19 wherein the bristle support feet extend from the side brush body and are in a downwardly curved configuration, a height difference is created between the side brush body and the bristles, and when the side brush is mounted on the sweeper, the sweeper applies a downward pressure to the side brush, and the bristles are pressed and deformed to effect the bristles to cling to the ground.

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