CN117562460A

CN117562460A - Rolling brush assembly and cleaning device

Info

Publication number: CN117562460A
Application number: CN202311747927.7A
Authority: CN
Inventors: 阮传龙; 陈文�; 林海利; 黄忠平; 开沙尔·肖开提; 曾睿熙
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2023-12-18
Filing date: 2023-12-18
Publication date: 2024-02-20

Abstract

The invention relates to the technical field of cleaning equipment, and discloses a rolling brush assembly and a cleaning device, wherein the rolling brush assembly comprises: the installation structure is provided with an installation cavity and a dust collection opening, and the installation cavity comprises a dust collection air duct part and a back part; the rolling brush is rotatably arranged in the mounting cavity, the dust collection air duct part and the back surface are respectively positioned at two sides of the rolling brush, the rolling brush comprises a main shaft part and a rib part, and the rib part is spirally arranged on the main shaft part; the tooth hooking parts are arranged on the back part and close to the dust collection opening, a plurality of tooth hooking parts are arranged at intervals along the direction parallel to the axial direction of the rolling brush, and the end parts of the tooth hooking parts are close to the outermost sides of the rib parts. After the hair is wound on the rolling brush, the hair can be slowly moved to the direction by the friction force in the direction opposite to the advancing direction of the rib, and in the moving process, the winding hair is positioned between the rib and the tooth part because the end part of the tooth part is close to the outermost side of the rib, so that the winding hair is easily hooked by the tooth part, the relative static state of the winding hair and the rolling brush is broken, and the winding hair is folded in half, thereby falling off.

Description

Rolling brush assembly and cleaning device

Technical Field

The invention relates to the technical field of cleaning equipment, in particular to a rolling brush assembly and a cleaning device.

Background

In the related art, when the floor sweeping robot cleans the floor and encounters a floor environment with hairs, the rolling brush is easy to be wound by the hairs, when the hairs are wound and piled up to a certain amount, the floor cleaning capability of the rolling brush can be affected, the hairs can be ground and melted by relative movement between the rolling brush and the floating cavity, the plastic parts of the floor sweeping robot are damaged, and the hairs can possibly enter the driving gear box to damage the gear box. The tangled hair on the roller brush must be cleaned regularly by the user. Because this clearance action is loaded down with trivial details, and the round brush is very dirty part, consequently can cause the user to use and experience poorly.

Disclosure of Invention

In view of the above, the present invention provides a rolling brush assembly and a cleaning device to solve the problem that the related art requires a user to manually clean the hair wound on the rolling brush.

In a first aspect, the present invention provides a roller brush assembly comprising:

the installation structure is provided with an installation cavity and a dust collection opening, and the installation cavity comprises a dust collection air channel part and a back part;

the rolling brush is rotatably arranged in the mounting cavity, the dust collection air duct part and the back surface are respectively positioned at two sides of the rolling brush, the rolling brush comprises a main shaft part and a rib part, and the rib part is spirally arranged at the main shaft part;

the tooth hooking parts are arranged on the back part and close to the dust collection opening, a plurality of tooth hooking parts are arranged at intervals along the direction parallel to the axial direction of the rolling brush, and the end parts of the tooth hooking parts are close to the outermost sides of the rib parts.

The beneficial effects are that: the dust collection air channel part is used for allowing garbage to pass through when garbage is cleaned, and the back part does not allow garbage to pass through, so that the tooth hooking part is arranged on the back part, the tooth hooking part cannot influence the cleaning, and the tooth hooking part cannot adhere to the garbage. When the rolling brush is driven by the motor to perform autorotation to sweep the floor, hair is wound on the rolling brush and then can be slowly moved in the direction by the friction force in the opposite direction to the advancing direction of the ribs, and in the moving process, as the end part of the tooth hooking part is close to the outermost side of the ribs, the wound hair is positioned between the ribs and the tooth hooking part, the wound hair is easily hooked by the tooth hooking part, the relative static state of the wound hair and the rolling brush is broken, and the wound hair is folded in half, so that the wound hair falls off.

When the tooth portion hooks a certain point of the winding hair, the winding hair of the half circle can be folded in half by the rolling brush, the folding part can be separated from the rolling brush, one circle of winding hair can be folded in half and separated from the rolling brush by each circle of rotation, the more the hair is folded in half, the less the hair length is wound on the rolling brush, the action can be always performed until the length of the hair which is wound is less than one circle, at the moment, the winding hair is in an untwisted state, and can enter the dust collection air duct portion through the dust collection opening under the suction action of the dust collection fan, so that a user does not need to manually clean the winding hair, and the user experience can be improved.

In an alternative embodiment, the rib portion includes a first end and a second end, the first end contacts the ground surface earlier than the second end, and the tooth portion includes a bent portion that is inclined toward the first end.

The beneficial effects are that: when the rolling brush piece is driven by a motor to perform autorotation to sweep the floor, the first end of the rib part is firstly contacted with the floor, the second end of the rib part is contacted with the floor, after the hair is wound on the rolling brush, the hair can be subjected to friction force in the direction opposite to the advancing direction of the rib, namely friction force in the direction of the second end, and the hair can slowly move in the direction.

In an alternative embodiment, an included angle between the bending portion and an arrangement direction of the plurality of tooth hooking portions is a, and 0 < a < 90 °.

The beneficial effects are that: because the included angle between the bending part and the arrangement direction of the plurality of tooth hooking parts, namely the left and right transverse directions of the mounting structure is A,0 < A < 90 degrees, namely the bending part is obliquely arranged, the top end of the tooth hooking part is outwards close to the winding, and the winding is more easily hooked.

In an alternative embodiment, on a vertical projection plane parallel to the axial direction of the roller brush, the angle between the bending part and the horizontal line is B, and 0 < B < 90 degrees.

The beneficial effects are that: the angle between the bending part and the horizontal line is B, and 0 < B < 90 degrees on the vertical projection plane parallel to the axial direction of the rolling brush, namely the bending part faces upwards, so that the hook part can be prevented from contacting with the carpet.

In an alternative embodiment, the gap between the tip of the rib portion and the tooth portion is d1,0.2 mm.ltoreq.d1.ltoreq.0.5 mm.

The beneficial effects are that: the clearance between the top of rib portion and the tooth portion that colludes is between 0.2mm to 0.5mm, colludes tooth portion and can not influence the normal rotation of round brush, and is nearer apart from the top of rib portion simultaneously, and after winding hair, the hair is located between rib portion and the tooth portion that colludes, can ensure to be with twining the hair hook on tooth portion.

In an alternative embodiment, the length of the bending part is L1, and L1 is less than or equal to 1.5mm and less than or equal to 3mm.

The beneficial effects are that: the length of the bending part is shorter, normal rotation of the rolling brush is not affected, meanwhile, the strength of the tooth hooking part can be ensured, and the rolling brush is not easy to break.

In an alternative embodiment, the tooth hooking portion further includes a horizontal portion, the horizontal portion is connected to the mounting structure, and the bending portion is connected to an end of the horizontal portion away from the mounting structure.

The beneficial effects are that: the arrangement of the horizontal part is convenient for connecting the tooth hooking part and the mounting structure into a whole.

In an alternative embodiment, the back portion is further provided with a tuft portion in a direction parallel to the axial direction of the rolling brush, the tuft portion being located on both sides of the plurality of tooth-hooking portions.

The beneficial effects are that: the hair bundle parts can ensure that the wound hair is gathered between the two hair bundle parts, and the wound hair is prevented from running to other positions.

In an alternative embodiment, both of the tuft portions are inclined toward the tooth portions.

The beneficial effects are that: since both the hair bundle portions are inclined toward the tooth hooking portion, it is possible to further secure the wound hair between the two hair bundle portions, preventing the wound hair from running to other positions.

In an alternative embodiment, the interference fit of the tips of the rib portions with the tuft portions is d2,0.1mm < d1 < 0.5mm.

The beneficial effects are that: the top and the hair bundle part interference fit of rib portion can further ensure to gather the hair of winding between two hair bundle parts, prevents to twine the hair and run other positions, because the two interference fit volume is less, and rib portion is softer, consequently can not influence the normal rotation of round brush.

In an alternative embodiment, the distance between two adjacent tooth portions is L2,2.3 mm.ltoreq.L2.ltoreq.3 mm.

The beneficial effects are that: the distance between two adjacent tooth portions is between 2.3mm and 3mm, and the interval can ensure that hair can be hooked on the tooth portions through the interval between the two tooth portions, and simultaneously ensure that hair can not be hooked on the tooth portions due to larger interval and can not be difficult to hook on the tooth portions due to smaller interval.

In an alternative embodiment, the installation structure comprises a floating shell and a rolling brush cover covered on the floating shell, the floating shell is provided with the installation cavity, the rolling brush cover is provided with the dust collection opening, and the tooth hooking part is arranged on the rolling brush cover.

The beneficial effects are that: the floating shell can float from top to bottom to a certain extent, so that the rolling brush can be suitable for uneven ground, after the rolling brush is installed in the installation cavity, the rolling brush cover is covered on the floating shell, the rolling brush cover is arranged to be convenient for installation of the rolling brush, and in addition, the tooth hooking portions are arranged on the rolling brush cover to be convenient for installation and fixation of the tooth hooking portions.

In a second aspect, the present invention also provides a cleaning device comprising:

the rolling brush component.

The beneficial effects are that: when the rolling brush is driven by the motor to perform autorotation to sweep the floor, the hair is wound on the rolling brush and then can be slowly moved in the direction by the friction force in the opposite direction of the advancing direction of the rib, in the moving process, as the end part of the tooth hooking part is close to the outermost side of the rib, the winding hair is positioned between the rib and the tooth hooking part, the winding hair is easily hooked by the tooth hooking part, the relative static state of the winding hair and the rolling brush is broken, and the winding hair is folded in half, so that the winding hair falls off.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a cross-sectional view of a roll brush cover of a roll brush assembly in a left-right lateral direction according to an embodiment of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a front view of a roll brush cover of a roll brush assembly according to an embodiment of the present invention;

FIG. 4 is an enlarged view at E in FIG. 3;

FIG. 5 is a schematic view of a structure of a roll brush;

FIG. 6 is a cross-sectional view of the floating housing with the roll brush cover assembled at a first cross-section;

FIG. 7 is a cross-sectional view of the floating housing with the roll brush cover at a second cross-section after assembly;

FIG. 8 is a cross-sectional view of the cleaning device in the left-right lateral direction after the roll brush is assembled in the installation cavity;

fig. 9 is an enlarged view of F in fig. 8;

FIG. 10 is a cross-sectional view of a roller brush assembly in a direction perpendicular to the axis of the roller brush according to an embodiment of the present invention;

fig. 11 is an enlarged view of G in fig. 10;

FIG. 12 is a cross-sectional view of a roller brush with entangled hair thereon;

FIG. 13 is a cross-sectional view of the entangled hair after being hooked by the hooking tooth;

FIG. 14 is a cross-sectional view of the entangled hair after being hooked and folded in half by the hooked tooth;

fig. 15 is a sectional view after the winding and unwinding.

Reference numerals illustrate:

1. a floating shell; 101. a mounting cavity; 102. a dust collection air duct portion; 103. a back portion; 2. a rolling brush cover; 3. a rolling brush; 301. a main shaft portion; 302. a rib portion; 3021. a first end; 3022. a second end; 3023. a limit part; 303. a fixing part; 4. a tooth hooking part; 401. a bending part; 402. a horizontal portion; 5. a hair bundle part; 6. and winding hair.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

When the applicant researches experiments for reducing the winding rate of the hair of the rolling brush, under the conditions that the total number of the hair is 106 and the length is 10-40cm, the applicant finds that the rolling brush is wound with about 20-30 hairs in each experiment, the hairs are very difficult to automatically fall off after being wound on the rolling brush, even the more tightly wound hairs are, and the winding quantity can be effectively reduced if the hairs can be automatically fallen off.

The research shows that the essence that the winding hair does not fall off from the rolling brush is that the winding hair and the rolling brush do approximately relative static motion, because the winding hair and the rolling brush do relative motion when the rolling brush rotates and the distance between the winding hair and the inner wall surface of the installation cavity is very close to each other, if a fixed point is arranged on the inner wall of the installation cavity, a certain point of the winding hair which is in a rotating state together with the rolling brush can be fixed, under the pulling action of the point, the winding hair and the rolling brush can relatively move, and the winding hair can be separated from the rolling brush by breaking the original relative static motion state.

Embodiments of the present invention are described below with reference to fig. 1 to 15.

According to an embodiment of the present invention, in one aspect, there is provided a roller brush assembly including a mounting structure, a roller brush 3, and a tooth portion 4.

The installation structure is provided with an installation cavity 101 and a dust collection opening, wherein the installation cavity 101 comprises a dust collection air channel part 102 and a back part 103; the rolling brush 3 is rotatably arranged in the mounting cavity 101, the dust collection air channel part 102 and the back part 103 are respectively positioned at two sides of the rolling brush 3, the rolling brush 3 comprises a main shaft part 301 and a rib part 302, and the rib part 302 is spirally arranged on the main shaft part 301; the tooth-hooking portions 4 are disposed on the back portion 103 and close to the dust collection opening, the tooth-hooking portions 4 are disposed at intervals in a direction parallel to the axial direction of the roller brush 3, and the end portions of the tooth-hooking portions 4 are close to the outermost sides of the rib portions 302.

In this embodiment, the dust collection air channel portion 102 is used for passing the dust while cleaning the dust, and the back portion 103 does not pass the dust, so that the tooth hooking portion 4 is disposed on the back portion 103, the tooth hooking portion 4 does not affect cleaning, and the tooth hooking portion 4 does not adhere to the dust. When the rolling brush 3 is driven by a motor to perform autorotation to sweep the floor, hair is wound on the rolling brush 3 and then gradually moves in the direction due to the friction force in the opposite direction to the advancing direction of the ribs, and in the moving process, as the end part of the tooth hooking part 4 is close to the outermost side of the rib part 302, the winding hair 6 is positioned between the rib part 302 and the tooth hooking part 4, the winding hair 6 is easily hooked by the tooth hooking part 4, the relative static state of the winding hair 6 and the rolling brush 3 is broken, and the winding hair 6 is folded in half, so that the winding hair falls off.

Referring to fig. 12 to 15, when the hooking tooth portion 4 hooks a certain point of the wound hair 6, the wound hair 6 of half turn is folded in half, and the folded portion is separated from the rolling brush 3, and when the rolling brush 3 is rotated for one turn, the wound hair 6 of one turn is folded in half and separated from the rolling brush 3, the more the hair is folded in half, the less the length of the hair is remained on the rolling brush 3, the action is performed until the length of the hair is remained and wound for less than one turn, at this time, the wound hair is in an untwisted state, and can enter the dust collecting air duct portion 102 through the dust collecting opening under the suction action of the dust collecting fan, the user does not need to manually clean the wound hair 6, and the user experience can be improved.

Through experiments, under the condition that the total number of the hairs is 106 and the length is 10-40cm, the total number of the hairs is 10, wherein the number of the winds of the test results of 8 times is 0, the number of the winds of the test results of 1 time is 1, and the number of the winds of the test results of 1 time is 2. The average winding rate of the hair is 0.3 percent, and compared with the winding rate of 20 to 30 percent in the related art, the average winding rate of the hair is obviously improved.

Specifically, in one embodiment, the main shaft 301 of the roller brush 3 is provided with a through hole, and the rib 302 is fixedly connected with the roller brush 3 from the inner side of the roller brush 3 through the through hole, and the rib 302 includes a limiting member located at the inner side of the main shaft 301, where the limiting member is used to block the rib 302 from falling out of the main shaft 301.

Specifically, in one embodiment, the main shaft portion 301 has fixing portions 303 at both ends, and is rotatably mounted in the mounting chamber 101 by the fixing portions 303.

In particular, in one embodiment, the rib portion 302 is a glue strip.

In one embodiment, the rib portion 302 includes a first end 3021 and a second end 3022, the first end 3021 being in contact with the ground prior to the second end 3022, and the tooth portion 4 includes a bent portion 401, and the bent portion 401 is inclined toward the first end 3021.

In this embodiment, when the roller brush 3 is driven by the motor to perform the self-rotation operation to sweep the floor, the first end 3021 of the rib portion 302 is firstly contacted with the floor, the second end 3022 of the rib portion 302 is then contacted with the floor, after the hair is wound on the roller brush 3, the hair will be slowly moved in the direction by the friction force in the opposite direction to the advancing direction of the rib, that is, the friction force in the direction of the second end 3022, and during the movement, since the end of the tooth portion 4 is close to the outermost side of the rib portion 302 and the bending portion 401 is inclined towards the first end 3021, the winding 6 is easily hooked by the tooth portion 4, the relative static state of the winding 6 and the roller brush 3 is broken, and the winding 6 is folded in half, thereby falling off.

In one embodiment, the angle between the bending portion 401 and the arrangement direction of the plurality of tooth hooking portions 4 is a, and 0 < a < 90 °.

In this embodiment, because the included angle between the bending portion 401 and the arrangement direction of the plurality of tooth hooking portions 4, that is, the left-right transverse direction of the mounting structure is a,0 < a < 90 °, that is, the bending portion 401 is obliquely arranged, the top end of the tooth hooking portion 4 is close to the winding portion 6 outwards, so that the winding portion 6 is more easily hooked.

Specifically in one embodiment, A is 15 to 30 degrees

In particular, in one embodiment, the angle between the bending portion 401 and the arrangement direction of the plurality of tooth hooking portions 4 is 15 °.

In particular, in one embodiment, the angle between the bending portion 401 and the arrangement direction of the plurality of tooth hooking portions 4 is 25 °.

In particular, in one embodiment, the angle between the bending portion 401 and the arrangement direction of the plurality of tooth hooking portions 4 is 30 °.

In one embodiment, on a vertical projection plane parallel to the axial direction of the roller brush 3, the angle between the bent portion 401 and the horizontal line is B, and 0 < B < 90 °.

In this embodiment, by making the angle between the bent portion 401 and the horizontal line be B,0 < B < 90 °, i.e., the bent portion 401 is directed upward, on a vertical projection plane parallel to the axial direction of the roll brush 3, the hook portion can be prevented from contacting the carpet.

In particular, in one embodiment, 15.ltoreq.B.ltoreq.45.

In particular, in one embodiment, the angle between the bent portion 401 and the horizontal line is 15 ° on a vertical projection plane parallel to the axial direction of the roller brush 3.

In particular, in one embodiment, the angle between the bent portion 401 and the horizontal line is 30 ° on a vertical projection plane parallel to the axial direction of the roller brush 3.

In particular, in one embodiment, the angle between the bent portion 401 and the horizontal line is 45 ° on a vertical projection plane parallel to the axial direction of the roller brush 3.

In one embodiment, the gap between the tip of the rib 302 and the tooth portion 4 is d1,0.2 mm. Ltoreq.d1. Ltoreq.0.5 mm.

In this embodiment, the gap between the tip of the rib 302 and the tooth 4 is between 0.2mm and 0.5mm, the tooth 4 does not affect the normal rotation of the roller brush 3, and the hair is located closer to the tip of the rib 302, and after the hair is wound, the hair is located between the rib 302 and the tooth 4, so that the winding 6 can be ensured to be hooked on the tooth 4.

In particular, in one embodiment, the gap between the tip of the rib portion 302 and the tooth portion 4 is 0.2mm.

In particular, in one embodiment, the gap between the tip of the rib portion 302 and the tooth portion 4 is 0.3mm.

In particular, in one embodiment, the gap between the tip of the rib portion 302 and the tooth portion 4 is 0.4mm.

In particular, in one embodiment, the gap between the tip of the rib portion 302 and the tooth portion 4 is 0.5mm.

Of course, in other alternative embodiments, the gap between the tip of the rib portion 302 and the tooth portion 4 may be less than 0.2mm, for example 0.1mm, 0.15mm.

In one embodiment, the length of the bent portion 401 is L1,1.5 mm.ltoreq.L1.ltoreq.3 mm.

In this embodiment, the length of the bending portion 401 is shorter, so that normal rotation of the rolling brush 3 is not affected, and at the same time, the strength of the tooth hooking portion 4 can be ensured, and breakage is not easy.

In particular, in one embodiment, the length of the bend 401 is 1.5mm.

In particular, in one embodiment, the length of the bent portion 401 is 2mm.

In particular, in one embodiment, the length of the bent portion 401 is 3mm.

In one embodiment, the tooth portion 4 further includes a horizontal portion 402, the horizontal portion 402 is connected to the mounting structure, and the bending portion 401 is connected to an end of the horizontal portion 402 away from the mounting structure.

In this embodiment, the horizontal portion 402 is provided to facilitate the attachment of the hooking portion 4 to the mounting structure.

Of course, in an embodiment not shown in the figures, the hooking portion 4 may include only the bent portion 401.

In particular, in one embodiment, as shown in fig. 10 and 11, the roll brush cover 2 is provided with a mounting groove in which the horizontal portion 402 is fixed.

In one embodiment, the back portion 103 is further provided with hair bundles 5 in a direction parallel to the axial direction of the roller brush 3, the hair bundles 5 being located on both sides of the plurality of tooth hooking portions 4.

In this embodiment, the provision of the hair bundle portions 5 can ensure that the entangled hair is gathered between the two hair bundle portions 5, preventing the entangled hair 6 from running to other positions.

In one embodiment, both tufts 5 are inclined toward the hooked tooth portion 4.

In this embodiment, since both the hair bundle portions 5 are inclined toward the hooking portions 4, it is possible to further secure the wound hair gathered between the two hair bundle portions 5, preventing the wound hair 6 from running to other positions.

In an embodiment not shown in the drawings, the tuft portion 5 may be disposed vertically.

In one embodiment, the amount of interference fit of the tips of rib portions 302 with tuft portion 5 is d2,0.1 mm. Ltoreq.d1.ltoreq.0.5 mm.

In this embodiment, the top ends of the rib portions 302 are in interference fit with the tuft portions 5, so that it is further ensured that the wound hair is gathered between the two tuft portions 5, and the wound hair 6 is prevented from running to other positions, and the normal rotation of the roller brush 3 is not affected because the interference fit amount of the two is small and the rib portions 302 are relatively soft.

Specifically, in one embodiment, the amount of interference fit of the tip of the rib portion 302 with the tuft portion 5 is 0.1mm.

Specifically, in one embodiment, the amount of interference fit of the tip of the rib portion 302 with the tuft portion 5 is 0.3mm.

Specifically, in one embodiment, the amount of interference fit of the tip of the rib portion 302 with the tuft portion 5 is 0.5mm.

In one embodiment, the distance between two adjacent tooth portions 4 is L2,2.3 mm.ltoreq.L2.ltoreq.3 mm.

In this embodiment, the distance between two adjacent tooth portions 4 is between 2.3mm and 3mm, and the interval can ensure that hair can be hooked on the tooth portions 4 through the interval between the two tooth portions 4, and at the same time ensure that hair cannot be hooked on the tooth portions 4 due to larger interval and is not difficult to be hooked on the tooth portions 4 due to smaller interval.

In particular in one embodiment, the distance between two adjacent tooth portions 4 is 2.3mm.

In particular in one embodiment, the distance between two adjacent tooth portions 4 is 2.6mm.

In particular in one embodiment, the distance between two adjacent tooth portions 4 is 3mm.

In one embodiment, the installation structure comprises a floating shell 1 and a rolling brush cover 2 covered on the floating shell 1, the floating shell 1 is provided with an installation cavity 101, the rolling brush cover 2 is provided with a dust collection opening, and the tooth hooking part 4 is arranged on the rolling brush cover 2.

In this embodiment, the floating shell 1 can float up and down to a certain extent, so that the rolling brush 3 can be applied to uneven ground, after the rolling brush 3 is mounted in the mounting cavity 101, the rolling brush cover 2 is covered on the floating shell 1, the rolling brush cover 2 is arranged to facilitate the mounting of the rolling brush 3, and in addition, the tooth hooking portions 4 are arranged on the rolling brush cover 2 to facilitate the mounting and fixing of the tooth hooking portions 4.

According to an embodiment of the present invention, in another aspect, there is also provided a cleaning device including the above-mentioned rolling brush assembly.

When the rolling brush 3 is driven by a motor to perform autorotation to sweep the floor, the hair is wound on the rolling brush 3 and then gradually moves in the direction opposite to the advancing direction of the ribs by the friction force of the opposite direction of the advancing direction of the ribs, and in the moving process, as the end part of the tooth hooking part 4 is close to the outermost side of the rib part 302, the winding hair 6 is positioned between the rib part 302 and the tooth hooking part 4, the winding hair 6 is easily hooked by the tooth hooking part 4, the relative static state of the winding hair 6 and the rolling brush 3 is broken, and the winding hair 6 is folded in half, so that the winding hair falls off.

In particular in one embodiment, the cleaning device may be a sweeping robot or a scrubber.

Although embodiments of the present invention have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope of the invention as defined by the appended claims.

Claims

1. A roller brush assembly, comprising:

the dust collection device comprises a mounting structure, a dust collection device and a dust collection device, wherein the mounting structure is provided with a mounting cavity (101) and a dust collection opening, and the mounting cavity (101) comprises a dust collection air duct part (102) and a back part (103);

the rolling brush (3) is rotatably arranged in the mounting cavity (101), the dust collection air channel part (102) and the back part (103) are respectively positioned at two sides of the rolling brush (3), the rolling brush (3) comprises a main shaft part (301) and a prismatic part (302), and the prismatic part (302) is spirally arranged on the main shaft part (301);

the tooth hooking parts (4) are arranged on the back part (103) and are close to the dust collection opening, the tooth hooking parts (4) are arranged at intervals along the direction parallel to the axial direction of the rolling brush (3), and the end parts of the tooth hooking parts (4) are close to the outermost sides of the prismatic parts (302).

2. The roller brush assembly according to claim 1, characterized in that the rib portion (302) comprises a first end (3021) and a second end (3022), the first end (3021) being in contact with the ground earlier than the second end (3022), the tooth portion (4) comprising a bent portion (401), the bent portion (401) being inclined towards the first end (3021).

3. The rolling brush assembly according to claim 2, wherein an angle between the bending portion (401) and the arrangement direction of the plurality of tooth-hooking portions (4) is a,0 < a < 90 °.

4. The roller brush assembly according to claim 2, characterized in that the angle between the bend (401) and the horizontal is B,0 < B < 90 ° on a vertical projection plane parallel to the axial direction of the roller brush (3).

5. The roller brush assembly according to claim 2, characterized in that the gap between the tip of the rib portion (302) and the tooth-hooking portion (4) is d1,0.2 mm.ltoreq.d1.ltoreq.0.5 mm.

6. The roll brush assembly according to claim 2, characterized in that the length of the bent portion (401) is L1, L1 is 1.5 mm-3 mm.

7. The roller brush assembly according to any one of claims 2 to 6, characterized in that the tooth portion (4) further comprises a horizontal portion (402), the horizontal portion (402) being connected to the mounting structure, the bent portion (401) being connected to an end of the horizontal portion (402) remote from the mounting structure.

8. The roller brush assembly according to any one of claims 2 to 6, characterized in that the back facing portion (103) is further provided with tuft portions (5) in a direction parallel to the axial direction of the roller brush (3), the tuft portions (5) being located on both sides of the plurality of tooth hooking portions (4).

9. The roller brush assembly according to claim 8, characterized in that both tuft parts (5) are inclined towards the tooth-hooking part (4).

10. The roll brush assembly according to claim 8, wherein the interference fit amount of the tips of the rib portions (302) and the tuft portions (5) is d2, d1 is 0.1mm or less and 0.5mm or less.

11. The roller brush assembly according to any one of claims 1 to 6, characterized in that the distance between two adjacent tooth portions (4) is L2,2.3mm +.l2 +.3 mm.

12. The rolling brush assembly according to any one of claims 1 to 6, 9 and 10, characterized in that the mounting structure comprises a floating shell (1) and a rolling brush cover (2) covered on the floating shell (1), the floating shell (1) is provided with the mounting cavity (101), the rolling brush cover (2) is provided with the dust suction opening, and the tooth hooking part (4) is arranged on the rolling brush cover (2).

13. A cleaning device, comprising:

the roller brush assembly of any one of claims 1 to 12.