CN219846404U - Ultrathin ground brush for surface cleaning device - Google Patents

Abstract

The utility model discloses an ultrathin floor brush for a surface cleaning device, which belongs to the technical field of cleaning equipment and comprises a floor brush main body, a roller brush cover and a roller brush, wherein the roller brush cover is matched with the floor brush main body to form a roller brush cavity, a first step part formed by concave depression is arranged on the front side of the top of the floor brush main body, a limit part is arranged at the first step part, the roller brush cover comprises a locking part and an extending part, the locking part is matched with the limit part to lock and install the roller brush cover on the floor brush main body, and the extending part extends forwards from the locking part to enclose a part of the roller brush cavity, wherein the top end of the roller brush is higher than the step surface of the first step part. The locking part of the roller brush cover is avoided by the first step part, so that the protruding height of the roller brush cover relative to the ground brush main body when the roller brush cover is buckled and installed on the ground brush main body can be reduced, the overall height of the ground brush can be reduced, and the ultrathin structure of the ground brush can be realized. The floor brush can enter a short space for cleaning when the surface cleaning device works, and the use experience of a user is improved.

Description

Ultrathin ground brush for surface cleaning device

Technical Field

The utility model relates to the technical field of cleaning equipment, in particular to an ultrathin floor brush for a surface cleaning device.

Background

In recent years, some cleaning devices are widely applied to daily life of people, and various cleaning devices bring great convenience to the life of people, so that living experience of people is improved. 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 the floor brush is provided with a roller brush driven by a motor, the liquid supply assembly is used for supplying liquid to the roller brush so that the roller brush can wet a surface to be cleaned after absorbing water, and the dirt collection assembly is used for sucking dirt at the bottom of the floor brush and dirt scraped by a scraping plate into a sewage bucket. Because the component members of the floor brush are more, and because the front cover of the floor brush is positioned at the top of the floor brush main body when the floor brush main body is buckled, the thickness of the floor brush is larger, and the floor brush can not enter the low spaces such as the bed bottom, the cabinet bottom, the sofa bottom and the like for cleaning, the floor brush is unfavorable for improving the use experience of users.

Disclosure of Invention

In order to solve the defects and shortcomings in the prior art, the utility model provides an ultrathin floor brush for a surface cleaning device, which utilizes a first step part to avoid a locking part of a roller brush cover, can effectively reduce the overall thickness of the floor brush when the roller brush cover is buckled and installed on a floor brush main body, and enables the floor brush to enter a low space such as a bed bottom, a cabinet bottom, a sofa bottom and the like for cleaning when the surface cleaning device works, thereby improving the use experience of a user.

In order to achieve the technical purpose, the ultrathin floor brush for the surface cleaning device comprises a floor brush main body, a roller brush cover and a roller brush, wherein the roller brush cover is detachably buckled and installed on the floor brush main body and can be matched with the floor brush main body to form a roller brush cavity for accommodating the roller brush, a first step part formed by recessing is arranged on the front side of the top of the floor brush main body, a limiting part is arranged at the first step part, the roller brush cover comprises a locking part and an extending part, the locking part is matched with the limiting part to buckled and installed on the floor brush main body, and the extending part extends forwards from the locking part to enclose a part of the roller brush cavity, wherein the top end of the roller brush is higher than the step surface of the first step part.

Preferably, the roller brush comprises a roller body and brush hairs arranged on the outer surface of the roller body, and the top end of the roller body is lower than the step surface of the first step part.

Preferably, the distance between the axis of the roller brush and the bottom surface of the floor brush main body is smaller than the distance between the axis of the roller brush and the step surface of the first step portion.

Preferably, the bottom side of the floor brush main body is provided with a floor scraper in interference contact with the surface to be cleaned, and the projection of the front edge of the first step part in the vertical direction is positioned in front of the floor scraper.

Preferably, the floor brush main body is provided with a water diversion part for supplying liquid to the surface of the roller brush, the front end of the water diversion part extends forward to the front edge of the first step part, the front side of the water diversion part is provided with an arc-shaped surface opposite to the roller brush and in contact with the surface of the roller brush, and the arc-shaped surface is provided with a water outlet hole.

Preferably, the floor brush main body is provided with a dirt inlet and a scraping plate which is in interference with the roller brush, and the floor brush, the dirt inlet, the scraping plate and the water distributing piece are sequentially arranged on the rear side of the roller brush cavity along the rotating direction of the roller brush, and the distance between the water outlet hole and the scraping plate on the arc surface is smaller than the distance between the water outlet hole and the front end of the water distributing piece.

Preferably, the upper surface of the roller brush cover is flush with the top surface of the floor brush body.

Preferably, the top of the floor brush main body is provided with a second step part which is positioned behind the first step part and higher than the first step part, and the rear edge of the roller brush cover abuts against the second step part when the roller brush cover is buckled and installed on the floor brush main body.

Preferably, the left and right ends of the first step part are provided with supporting tables which are not higher than the step surfaces of the second step part, and the left and right ends of the roller brush cover are provided with positioning grooves which are positioned at the outer sides of the locking parts and matched with the supporting tables.

Preferably, two sliding blocks which are distributed at intervals along the left-right direction and are in a sheet shape are arranged in the locking part, the two sliding blocks are provided with lock bolts which extend back to the locking part and can extend out of the locking part, and the limiting part is a locking groove matched with the lock bolts.

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

1. according to the ultrathin ground brush provided by the utility model, the first step part is arranged on the front side of the top of the ground brush main body, the locking part is matched with the limiting part when the roller brush cover is buckled and installed on the ground brush main body, the extending part of the roller brush cover extends forwards from the locking part to enclose and form part of the roller brush cavity, the locking part of the roller brush cover is avoided by utilizing the first step part, the protruding height of the roller brush cover relative to the ground brush main body when the roller brush cover is buckled and installed on the ground brush main body can be reduced, and in addition, the top end of the roller brush is higher than the step surface of the first step part, the height position of the roller brush cover relative to the roller brush can be reasonably reduced while the mutual interference between the roller brush and the roller brush cover is avoided, so that the whole thickness of the ground brush can be reasonably reduced, and the ultrathin structure of the ground brush can be realized. The floor brush can enter the low spaces such as the bed bottom, the cabinet bottom, the sofa bottom and the like for cleaning when the surface cleaning device works, so that the surface cleaning device better meets the cleaning requirements of users, and the use experience of the users is improved.

2. Because the brush hair is softer, the contact of the brush hair and the roller brush cover can not influence the structure of the roller brush cover and the rotation of the roller brush. The top of the roller body is lower than the step surface setting of the first step portion, avoids the collision of the hard roller body and the roller brush cover when the roller brush rotates, thereby avoids the roller brush cover to cause rotation interference to the roller brush, and ensures the rotation stability of the roller brush when guaranteeing the structural stability of the roller brush cover.

3. The distance between the axial lead of the roller brush and the bottom surface of the ground brush main body is smaller than the distance between the axial lead of the roller brush and the step surface of the first step part, so that the radial dimension of the roller brush can be reasonably controlled while the surface to be cleaned can be effectively wiped by the roller brush, the overall thickness of the ground brush can be further reasonably reduced, and the ground brush can be in an ultrathin structure.

4. The projection of the front edge of the first step part in the vertical direction is positioned in front of the ground wiper, the front edge of the first step part and the ground wiper are distributed in a staggered manner in the front-rear direction, and the rotating interference to the roller brush caused by the ground wiper can be avoided while the outer diameter of the roller brush is properly reduced, so that the overall thickness of the ground brush is further reasonably reduced.

5. Be equipped with apopore and arcwall face and the surface contact of roller brush on the arcwall face of water knockout drum, the brush hair of roller brush can laminate with the arcwall face of water knockout drum, makes the arcwall face have even water effect to the roller brush, helps improving the wet homogeneity of roller brush imbibition. The front end of the water diversion piece extends forward to the front edge of the first step part, the radian of the arc surface can be reasonably increased on the premise of not increasing the thickness of the water diversion piece, and the integral thickness of the floor brush can be reasonably controlled while the arc surface is improved to achieve the uniform water brushing effect.

6. The floor brush is provided with a floor brush cavity, a floor brush inlet, a scraping plate and a water diversion part, wherein the floor brush inlet, the scraping plate and the water diversion part are sequentially arranged at the rear side of the floor brush cavity along the rotation direction of the roller brush, and the relative distribution direction and the arrangement position of each structure are reasonably arranged, so that the floor brush can reasonably control the combined height of the floor brush inlet, the scraping plate and the water diversion part while meeting the related functional requirements, and the overall thickness of the floor brush can be reasonably controlled. The distance between the water outlet and the scraping plate on the arc surface is smaller than the distance between the water outlet and the front end of the water distributing piece, the effective water distributing path length of the arc surface roller brush is reasonably increased, and the arc surface roller brush water distributing effect is further improved.

7. The upper surface of the roller brush cover is flush with the top surface of the floor brush main body, so that the roller brush cover buckled and installed on the floor brush main body cannot protrude upwards from the floor brush main body, the thickness of the floor brush is basically consistent, and the overall thickness of the floor brush is further reasonably reduced.

8. When the roller brush cover is buckled and installed on the floor brush main body, the rear edge of the roller brush cover abuts against the second step part, and the rear edge of the roller brush cover is avoided by utilizing the second step part, so that the upper surface of the roller brush cover can be kept in a flush state with the top surface of the floor brush main body.

9. When the roller brush cover is buckled and installed on the floor brush main body, the supporting table is matched with the positioning groove, so that the roller brush cover is subjected to the positioning action in the left-right direction, and the structural stability of the roller brush cover when the roller brush cover is buckled and installed on the floor brush main body can be improved. The upper surface of the roller brush cover can be kept in a level state with the top surface of the floor brush main body because the supporting table is not higher than the step surface of the second step part.

10. The roller brush cover can be fixedly buckled on the floor brush main body through the cooperation of the lock tongue and the lock groove, so that the structural stability of the roller brush cover can be ensured. The sliding block is in a thin plate shape, the thickness of the sliding block is reasonably controlled, the thickness of the roller brush cover can be reasonably reduced, and the overall thickness of the floor brush when the roller brush cover is buckled and installed on the floor brush main body is further reduced.

Drawings

FIG. 1 is an exploded view of a floor brush according to a first embodiment;

fig. 2 is a sectional view of a floor brush body in the front-rear direction in the first embodiment;

FIG. 3 is a partial construction view of a main body of a floor brush according to the first embodiment;

FIG. 4 is a view showing a construction of a roller brush cover in the first embodiment;

FIG. 5 is an exploded view of a roller brush cover in accordance with one embodiment;

fig. 6 is a sectional view of a roller brush cover in the front-rear direction in the first embodiment;

fig. 7 is a sectional view of the floor brush in the front-rear direction in the first embodiment;

FIG. 8 is a partial construction view of a floor brush in the first embodiment;

FIG. 9 is a structural view of a surface cleaning apparatus in the first embodiment;

fig. 10 is a sectional view of a floor brush in the front-rear direction in the second embodiment;

fig. 11 is a sectional view of the floor brush in the front-rear direction in the fourth embodiment.

In the figure, 10-floor brush, 101-roll brush cavity, 100-floor brush main body, 110-first step part, 110 a-first step surface, 110 b-first step side wall, 111-locking groove, 121-upper shell, 122-lower shell, 123-accommodating cavity, 124-mounting groove, 130-supporting table, 140-dirt inlet, 150-water distributing piece, 151-arc surface, 152-water outlet hole, 160-scraping plate, 170-scraping plate, 180-second step part, 180 a-second step surface, 180 b-second step side wall, 190-driving head, 200-roll brush cover, 210-locking part, 211-mounting cavity, 220-extending part, 230-latch component, 231-sliding block, 232-locking tongue, 233-lug, 234-spring, 240-upper cover plate, 241-avoiding hole, 250-lower cover plate, 251-dirt baffle, 260-elastic barrier strip, 270-positioning groove, 300-roll brush, 310-roll body, 320-bristle, 330-base handle, cloth layer, 20-body, 30-hand box.

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.

Example 1

Referring to fig. 1 to 8, an ultrathin floor brush 10 for a surface cleaning apparatus according to an embodiment of the utility model includes a floor brush main body 100, a roller brush cover 200 and a roller brush 300, wherein the roller brush cover 200 is detachably fastened to the floor brush main body 100 and can be matched with the floor brush main body 100 to form a roller brush cavity 101 for accommodating the roller brush 300. The front side at the top of the floor brush main body 100 is provided with a first step portion 110, the first step portion 110 comprises a first step surface 110a and a first step side wall 110b, a limiting portion is arranged at the first step portion 110, the roller brush cover 200 comprises a locking portion 210 and an extending portion 220, the locking portion 210 is matched with the limiting portion to enable the roller brush cover 200 to be buckled and installed on the floor brush main body 100, the extending portion 220 extends forwards from the locking portion 210 to enclose a part of the roller brush cavity 101, and the top end of the roller brush 300 is higher than the first step surface 110a.

The locking portion 210 of the roller brush cover 200 is avoided by the first step portion 110, so that the protruding height of the roller brush cover 200 relative to the floor brush body 100 when the roller brush cover 200 is buckled and mounted on the floor brush body 100 can be reduced, and in addition, the height position of the roller brush cover 200 relative to the roller brush 300 can be reasonably reduced while the mutual interference between the roller brush 300 and the roller brush cover 200 is avoided because the top end of the roller brush 300 is higher than the first step surface 110a, so that the overall thickness of the floor brush 10 can be reasonably reduced, and the ultrathin structure of the floor brush 10 can be realized. The floor brush 10 can enter the low spaces such as the bed bottom, the cabinet bottom, the sofa bottom and the like for cleaning when the surface cleaning device works, so that the surface cleaning device can better meet the cleaning requirements of users, and the use experience of the users can be improved.

Referring to fig. 2, in the present embodiment, the floor brush body 100 includes an upper case 121 and a lower case 122 fixed together and formed with a receiving cavity 123, a first stepped portion 110 is formed by a front end of the upper case 121 being recessed, a depth of the first stepped portion 110 is substantially identical to a thickness of the locking portion 210, and support tables 130 are provided at both left and right ends of the first stepped portion 110 of the floor brush body 100. Referring to fig. 3, the floor brush main body 100 is provided with a dirt inlet 140 located at the rear side of the roller brush cavity 101 and communicated with the roller brush cavity 101, the front side of the floor brush main body 100 is further provided with a mounting groove 124 located above the dirt inlet 140 and below the first step portion 110, a water distributing member 150 for supplying liquid to the roller brush 300 and a scraper 160 for scraping the roller brush 300 are arranged in the mounting groove 124, a plurality of water outlet holes 152 are formed in the front surface of the water distributing member 150 at intervals along the left-right direction, the scraper 160 is arranged at the bottom of the water distributing member 150, and the front end of the scraper 160 extends into the roller brush cavity 101 and is in contact with the roller brush 300. The bottom side of the floor brush main body 100 is provided with a floor scraper 170 positioned below the dirt inlet 140, and the bottom side of the floor scraper 170 extends downwards beyond the bottom surface of the floor brush main body 100 and is in interference contact with the surface to be cleaned. In this embodiment, the ground wiper 170, the dirt inlet 140, the scraper 160 and the water diversion member 150 are sequentially disposed at the rear side of the roller brush cavity 101 along the rotation direction of the roller brush 300, and the relative distribution direction and the setting position of each structure are reasonably set, so that the combined height of the ground wiper 170, the dirt inlet 140, the scraper 160 and the water diversion member 150 is reasonably controlled while the ground brush 10 meets the related functional requirements, which is beneficial to reasonably controlling the overall thickness of the ground brush 10.

The roller brush 300 is detachably arranged at the roller brush cavity 101, the ground brush main body 100 is provided with a driving assembly for driving the roller brush 300, the driving assembly comprises a motor, a reduction gearbox and a driving head 190, a motor shaft of the motor is in transmission connection with an input shaft of the reduction gearbox, the driving head 190 is in transmission connection with an output shaft of the reduction gearbox, the roller brush 300 is provided with a transmission hole in transmission fit with the driving head 190, and the motor drives the roller brush 300 to rotate through the reduction gearbox and the driving head 190, so that the roller brush 300 can effectively wipe a surface to be cleaned. In this embodiment, the motor is disposed in the accommodating chamber 123, and the driving head 190 is disposed at one end of the roller brush chamber 101. It will be appreciated that other reasonable driving structures may be adopted for the driving assembly, and the roller brush 300 in this embodiment may be a single roller brush structure as shown in the drawing, a double roller brush structure with a front-back interval distribution, or a crawler-type mop structure, which is not limited herein.

Referring to fig. 4 and 5, in the present embodiment, the latch assembly 230 is disposed in the locking portion 210, the roller brush cover 200 includes an upper cover plate 240 and a lower cover plate 250 fixed together, a rear side of the lower cover plate 250 is partially recessed and forms a mounting cavity 211 for mounting the latch assembly 230, and the upper cover plate 240 is fixed to a rear side of the lower cover plate 250 and covers the mounting cavity 211. Referring to fig. 6, the rear side of the lower cover plate 250 is combined with the upper cover plate 240 to form the locking part 210, and the front end of the lower cover plate 250 is bent downward toward the front to form the extension part 220, and a straight line M in fig. 6 represents a boundary between the locking part 210 and the extension part 220.

In this embodiment, the latch assembly 230 includes two sliding blocks 231 and springs 234 disposed between the two sliding blocks 231, the two sliding blocks 231 are provided with locking tongues 232 extending outwards away from each other at the ends of the two sliding blocks 231, the locking portion 210 is provided with a through slot for the locking tongues 232 to extend out, and the limiting portions are disposed on the left and right side walls of the first step portion 110 and are locking slots 111 matched with the locking tongues 232. In order to facilitate the application of force to the two sliding blocks 231 by a user, the two sliding blocks 231 are provided with lugs 233 protruding upwards and exposed out of the roller brush cover 200, the upper cover plate 240 of the roller brush cover 200 is provided with two avoidance holes 241 which are distributed at intervals left and right and respectively correspond to the lugs 233 on the two sliding blocks 231, and the lugs 233 are inserted into the corresponding avoidance holes 241. The spring 234 is in a compressed state and applies force to the two sliding blocks 231, so that the two sliding blocks 231 are in a state that the lock tongue 232 is matched with the lock groove 111 in a normal state. When the user applies force to the two sliding blocks 231 through the lugs 233 to enable the two sliding blocks 231 to slide towards each other, and accordingly the lock tongue 232 is separated from the locking groove 111, the spring 234 is stressed to be further compressed. After the user releases the two sliding blocks 231, the spring 234 which restores the deformation drives the two sliding blocks 231 to move back to restore the lock tongue 232 to the state of being matched with the locking groove 111.

In this embodiment, the top surface of the lug 233 does not exceed the top surface of the roller brush cover 200, and the two sliding blocks 231 have a thin plate structure, so that the thickness of the sliding blocks 231 is reasonably controlled, and the height of the mounting cavity 211 can be reduced, so that the thickness of the roller brush cover 200 can be reasonably reduced. Preferably, the top surface of the ledge 233 is disposed substantially flush with the top surface of the roll brush cover 200. It will be appreciated that the top surface of the ledge 233 may also be slightly lower than the top surface of the roll brush cover 200.

Referring to fig. 7, in order to reasonably reduce the overall thickness of the floor brush 10, when the roller brush cover 200 is snap-fitted to the floor brush body 100, the upper surface of the roller brush cover 200 is flush with the top surface of the floor brush body 100. In this embodiment, since the rear edge of the roller brush cover 200 protrudes rearward beyond the locking portion 210, in order to keep the upper surface of the roller brush cover 200 flush with the top surface of the floor brush main body 100, referring to fig. 2 and 3, the top of the floor brush main body 100 is provided with a second step portion 180 located behind the first step portion 110 and higher than the first step portion 110, the second step portion 180 includes a second step surface 180a and a second step side wall 180b, and when the roller brush cover 200 is fastened to the floor brush main body 100, the rear edge of the roller brush cover 200 abuts against the second step portion 180. Preferably, the second step surface 180a of the second step portion 180 is perpendicular to the first step sidewall 110b of the first step portion 110, so that the second step portion 180 and the first step portion 110 are disposed vertically adjacent to each other, and the height difference between the second step portion 180 and the first step portion 110 is eliminated, so that the thickness of the floor brush main body 100 can be reduced reasonably.

Referring to fig. 4, in order to improve structural stability when the roller brush cover 200 is fastened to the floor brush main body 100, the length of the locking portion 210 along the left-right direction is smaller than the length of the roller brush cover 200 along the left-right direction, positioning grooves 270 located at the outer sides of the locking portion 210 are provided at the left and right ends of the roller brush cover 200, the positioning grooves 270 are matched with the support tables 130 at the corresponding sides, and the locking tongues 232 can extend into the positioning grooves 270 at the corresponding sides. When the roller brush cover 200 is fastened to the floor brush body 100, the support base 130 cooperates with the positioning groove 270, so that the roller brush cover 200 is positioned in the left-right direction. In this embodiment, the top surface of the supporting table 130 is disposed flush with the second step surface 180a of the second step portion 180, so that the upper surface of the roller brush cover 200 can be maintained in a flush state with the top surface of the floor brush main body 100. It is understood that the top surface of the support table 130 may be disposed slightly lower than the second step surface 180a of the second step portion 180.

Referring to fig. 7 and 8, the roller brush 300 includes a roller body 310 and bristles 320 disposed on an outer surface of the roller body 310, and a first step surface 110a of the roller brush 300 having a top higher than the first step portion 110 means that the bristles 320 on the top side of the roller brush 300 may be higher than the first step surface 110a when the bristles 320 are in a fluffy state. Because the bristles 320 are relatively soft, the contact of the bristles 320 with the roller brush cover 200 does not affect the structural stability of the roller brush cover 200 nor the rotation of the roller brush 300. In order to prevent the roller body 310 from colliding with the roller brush cover 200 when the roller brush 300 rotates, the top edge of the roller body 310 is lower than the first step surface 110a of the first step 110. In this embodiment, the roller brush 300 includes a base layer 330 for setting bristles 320, the base layer 330 is disposed outside the roller body 310, the bristles 320 are fixed on the outer surface of the base layer 330, and the top edge of the base layer 330 is also disposed below the first step surface 110a of the first step portion 110. A straight line L1 in fig. 8 indicates a height position of the first step surface 110a of the first step portion 110, a straight line L2 indicates a highest position of the brush 320 at the topmost side of the roller brush 300 in a fluffy state, a straight line L3 indicates a height position of the top edge of the roller body 310, and the straight line L1 is lower than the straight line L2 and higher than the straight line L3.

Referring to fig. 8, in this embodiment, the distance H1 between the axis of the roller brush 300 and the bottom surface of the ground brush main body 100 is smaller than the distance H2 between the axis of the roller brush 300 and the first step surface 110a of the first step portion 110, so that the roller brush 300 can effectively wipe the surface to be cleaned while reasonably controlling the radial dimension of the roller brush 300, which is beneficial to further reasonably reducing the overall thickness of the ground brush 10, and the ground brush 10 can realize an ultrathin structure.

In order to avoid the ground wiper 170 from causing rotational interference to the roller brush 300 while properly reducing the outer diameter of the roller brush 300, a projection of the front edge of the first stepped portion 110 in the vertical direction is located in front of the ground wiper 170. A straight line L4 in fig. 8 indicates a vertical direction in which the front edge of the first step portion 110 is located, a straight line L5 indicates a vertical direction in which the front edge of the ground wiper 170 is located in a free state, and the straight line L4 is located in front of the straight line L5.

Referring to fig. 3 and 8, the front end of the water diversion member 150 extends forward to the front edge of the first step portion 110, an arc surface 151 opposite to the roller brush 300 and contacting the surface of the roller brush 300 is disposed on the front side of the water diversion member 150, and a plurality of water outlets 152 are disposed on the arc surface 151 and are disposed at intervals along the left-right direction. In this embodiment, the arc surface 151 is disposed concentrically with the roller brush 300, and the front end of the water diversion member 150 is provided with a plane that meets the top side of the arc surface 151 and is disposed in alignment with the front edge of the first step portion 110. The brush bristles 320 of the roller brush 300 can be attached to the arc surface 151 of the water diversion member 150, and the arc surface 151 has a water homogenizing effect on the roller brush 300, so that the uniformity of liquid absorption and wetting of the roller brush 300 can be improved.

Referring to fig. 3, a distance S1 between the water outlet 152 and the scraper 160 on the arc surface 151 is smaller than a distance S2 between the water outlet 152 and the front end of the water diversion member 150. The effective water-homogenizing path length of the arc surface 151 to the roller brush 200 is reasonably increased, so that the water-homogenizing effect of the arc surface 151 to the roller brush 200 is further improved. It is understood that the distance S1 between the water outlet 152 and the scraper 160 on the arc 151 may be equal to the distance S2 between the water outlet 152 and the front end of the water distributing member 150.

In order to prevent the liquid thrown away by the roller brush 300 from entering between the roller brush cover 200 and the first step portion 110, a resilient barrier strip 260 for blocking the liquid is arranged at the bottom of the roller brush cover 200, the resilient barrier strip 260 extends along the left-right direction, and when the roller brush cover 200 is buckled and installed on the floor brush main body 100, the resilient barrier strip 260 interferes with the front edge of the first step surface 110a, so that the matching gap between the roller brush cover 200 and the first step portion 110 is eliminated, and the liquid thrown away by the roller brush 300 cannot enter between the roller brush cover 200 and the first step portion 110.

Referring to fig. 9, the present embodiment further provides a surface cleaning apparatus, including a main body 20, the floor brush 10 described above, a clean water tank 40, and a dirt collecting assembly, wherein the bottom end of the main body 20 is pivotally connected to the rear side of the floor brush main body 100, the top end of the main body 20 is provided with a handle 30, the clean water tank 40 is connected to the water dividing member 150 through a pipe structure, the liquid in the clean water tank 40 flows to the water dividing member 150 under the pumping action of the water pump and flows out from the water outlet hole 152 of the water dividing member 150, the discharged liquid is absorbed by the roller brush 300 to enable the roller brush 300 to wet, and the dirt collecting assembly is used for sucking dirt at the bottom of the floor brush 10 and dirt scraped by the scraper 160 into the dirt collecting barrel. It is also understood that the specific structures of the water diversion member 150, the pipeline structure and the dirt collecting assembly may refer to the prior art, and will not be described herein.

When the roller brush cover 200 is buckled and installed on the floor brush main body 100, the locking part 210 is embedded at the first step part 110, the rear edge of the roller brush cover 200 is propped against the second step part 180, the left end and the right end of the roller brush cover 200 are propped against the supporting table 130, the supporting table 130 is matched with the positioning groove 270, the upper surface of the roller brush cover 200 is flush with the top surface of the floor brush main body 100, the bristles 320 at the top end of the roller brush 300 in a fluffy state are contacted with the bottom surface of the roller brush cover 200, the overall thickness of the floor brush 10 is smaller, and the floor clearance of the top surface of the floor brush 10 is preferably controlled within 12 cm. When the surface cleaning device works, a user pushes and pulls the device through the handle 30, and the floor brush 10 with smaller thickness can enter a low space such as a bed bottom, a cabinet bottom, a sofa bottom and the like for cleaning.

Example two

Referring to fig. 10, in the present embodiment, the rear surface of the locking portion 210 is substantially flush with the rear surface of the roller brush cover 200, and the floor brush main body 100 cancels the provision of the second step portion. When the roller brush cover 200 is fastened to the floor brush body 100, the locking portion 210 is embedded in the first step portion 110, the left and right ends of the roller brush cover 200 are abutted against the supporting table 130, and the upper surface of the roller brush cover 200 is flush with the top surface of the floor brush body 100.

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

Example III

In this embodiment, the roller brush cover 200 is detachably fastened to the floor brush main body 100 through a magnetic structure, specifically, a magnet is disposed in the locking portion 210 of the roller brush cover 200, an iron block is disposed at the first step portion 110 of the floor brush main body 100 or in the accommodating cavity 123, and when the roller brush cover 200 is mounted on the front side of the floor brush main body 100, the magnet and the iron block are mutually attracted, so that the stress of the roller brush cover 200 keeps stable.

It will be appreciated that the magnets and the iron blocks may be provided in a plurality of spaced apart relationship and that the positions of the magnets and the iron blocks may be interchanged. Of course, the magnetic attraction structure can also adopt a structure of attraction between the magnets, and at this time, the magnetic poles of the two magnets are oppositely arranged.

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

It will be appreciated that the third embodiment may be combined with the second embodiment.

Example IV

Referring to fig. 11, in order to enhance the blocking effect on the liquid, the lower cover plate 250 of the roller brush cover 200 is provided with a dirt blocking plate 251 extending downward from the locking part 210. When the roller brush cover 200 is fastened to the floor brush main body 100, the dirt blocking plate 251 is located at the front side of the first step portion 110 and abuts against the first step portion 110, the bottom surface of the dirt blocking plate 251 is lower than the first step surface 110a of the first step portion 110, the dirt blocking plate 251 and the elastic barrier strip 260 form a double blocking structure, and further liquid thrown away by the roller brush 300 is prevented from entering between the rear portion of the roller brush cover 200 and the first step portion 110.

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

It is understood that the fourth embodiment may be combined with the second embodiment or the third embodiment alone or in combination.

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 an ultra-thin ground brush for surface cleaning device, includes ground brush main part, roller brush lid and roller brush, and the detachable lock of roller brush lid is installed in ground brush main part and can form the roller brush chamber that is used for holding the roller brush with the cooperation of ground brush main part, a serial communication port, the front side at ground brush main part top is equipped with the first step portion that the indent formed, and first step portion department is equipped with spacing portion, and the roller brush lid includes locking part and extension, and locking part cooperates with spacing portion and is used for installing roller brush lid lock in ground brush main part, and extension self-locking part extends forward in order to enclose synthetic part roller brush chamber, and wherein, the top of roller brush is higher than the step face of first step portion.

2. The ultra-thin floor brush for a surface cleaning apparatus of claim 1, wherein the roller brush comprises a roller body and bristles provided on an outer surface of the roller body, and a top end of the roller body is lower than a step surface of the first step portion.

3. The ultra-thin floor brush for a surface cleaning apparatus according to claim 1, wherein a distance between an axis of the roller brush and a bottom surface of the floor brush body is smaller than a distance between an axis of the roller brush and a step surface of the first step portion.

4. An ultra-thin floor brush for a surface cleaning apparatus according to claim 1, wherein the floor brush body is provided at a bottom side thereof with a floor wiper in interference contact with a surface to be cleaned, and a projection of a front edge of the first step portion in a vertical direction is located in front of the floor wiper.

5. The ultra-thin floor brush for a surface cleaning apparatus according to claim 4, wherein the floor brush body is provided with a water dividing member for supplying liquid to the surface of the roller brush, the front end of the water dividing member extends forward to the front edge of the first step portion, the front side of the water dividing member is provided with an arcuate surface opposite to the roller brush and contacting the surface of the roller brush, and the arcuate surface is provided with water outlets.

6. The ultra-thin floor brush for a surface cleaning apparatus according to claim 5, wherein the floor brush main body is provided with a dirt inlet and a scraping plate which is in interference with the roller brush, the floor scraper, the dirt inlet, the scraping plate and the water dividing member are sequentially arranged at the rear side of the roller brush cavity along the rotation direction of the roller brush, and the distance between the water outlet hole and the scraping plate on the arc surface is smaller than the distance between the water outlet hole and the front end of the water dividing member.

7. The ultra-thin floor brush for a surface cleaning apparatus of claim 1, wherein the upper surface of the roller brush cover is flush with the top surface of the floor brush body.

8. The ultra-thin floor brush for a surface cleaning apparatus according to claim 1, wherein the top of the floor brush body is provided with a second step portion which is located behind and higher than the first step portion, and the rear edge of the roller brush cover abuts against the second step portion when the roller brush cover is snap-fitted to the floor brush body.

9. The ultra-thin floor brush for a surface cleaning apparatus of claim 8, wherein the left and right ends of the first step portion are provided with support tables provided with step surfaces not higher than the second step portion, and the left and right ends of the roller brush cover are provided with positioning grooves located outside the locking portion and engaged with the support tables.

10. The ultra-thin floor brush for a surface cleaning apparatus according to claim 1, wherein two thin plate-shaped sliding blocks are arranged in the locking part at intervals along the left-right direction, the two sliding blocks are provided with locking tongues which extend back to the outside and can extend out of the locking part, and the limiting part is a locking groove matched with the locking tongues.