CN113842083B - Rolling brush assembly, ground brush and dust collector - Google Patents
Rolling brush assembly, ground brush and dust collector Download PDFInfo
- Publication number
- CN113842083B CN113842083B CN202111342862.9A CN202111342862A CN113842083B CN 113842083 B CN113842083 B CN 113842083B CN 202111342862 A CN202111342862 A CN 202111342862A CN 113842083 B CN113842083 B CN 113842083B
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- CN
- China
- Prior art keywords
- limiting
- limiting piece
- brush
- rolling brush
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 89
- 239000000428 dust Substances 0.000 title abstract description 24
- 238000000034 method Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/02—Nozzles
- A47L9/04—Nozzles with driven brushes or agitators
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/02—Nozzles
- A47L9/04—Nozzles with driven brushes or agitators
- A47L9/0461—Dust-loosening tools, e.g. agitators, brushes
- A47L9/0466—Rotating tools
- A47L9/0477—Rolls
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles For Electric Vacuum Cleaners (AREA)
Abstract
The invention discloses a rolling brush assembly, a ground brush and a dust collector, wherein the rolling brush assembly comprises: a rolling brush; the limiting piece is movably arranged on the rolling brush, and the rolling brush is assembled or disassembled through the limiting piece; the operation part is arranged on the limiting piece and is used for driving the limiting piece to move under the action of external force. According to the rolling brush assembly, the limiting piece is movably arranged on the rolling brush, the rolling brush can be taken down by hand while the limiting piece is moved, and the limiting piece can be moved to a fixed position by hand after being assembled during assembly, so that one hand can be used for operation during assembly and disassembly, the operation steps are greatly simplified, the assembly and disassembly efficiency is improved, and the user experience is optimized.
Description
Technical Field
The invention relates to the technical field of dust collectors, in particular to a rolling brush assembly, a floor brush and a dust collector.
Background
The dust collector is one kind of indoor cleaning dust collector for cleaning floor, carpet, furniture, curtain and dust in narrow corner. The working principle of the dust collector is that the fan is driven by the motor to rotate at high speed to generate negative pressure to form air flow and pressure difference, and garbage or dust and the like are sucked into a dust collecting structure of the dust collector by utilizing the pressure difference and the air flow, so that dust collection is realized.
The existing dust collector comprises a dust collector body, a ground brush and a connecting pipe, one end of the connecting pipe is communicated with an air inlet channel of the ground brush, the other end of the connecting pipe is communicated with the dust collector body, the ground brush mainly plays a role in air suction, and objects to be cleaned sucked from the ground brush can enter the dust collector body through the connecting pipe to complete the cleaning function of the dust collector.
The rolling brush is one of main components of the ground brush assembly, and the ground brush motor drives the rolling brush to rotate, so that dust and sundries on the ground are brought to the dust collection opening and sucked into the dust cup of the dust collector, and the effect of cleaning and dedusting the ground is achieved. During use, the roller brush needs to be cleaned frequently, and therefore the roller brush must be detached from the housing. The rolling brush of the floor brush in the prior art is fixed with the shell of the floor brush through the locking mechanism, when the rolling brush needs to be disassembled, the locking button on the shell of the floor brush is manually shifted, so that the button wedge block connected with the locking button is separated from the rolling brush, and then the rolling brush is taken out; when the rolling brush is installed, the rolling brush is firstly installed in the ground brush, and then the locking button is manually shifted, so that the button wedge block connected with the locking button clamps the rolling brush, and in the operation process, the locking button and the rolling brush are different in position, so that two steps of operation are needed, the steps are complex, and the user experience is poor. Therefore, how to simplify the assembly and disassembly process of the rolling brush is a problem to be solved in the art.
Disclosure of Invention
The invention discloses a rolling brush assembly, a ground brush and a dust collector, which solve the problem of complex steps of disassembly and assembly of the rolling brush in the prior art.
According to one aspect of the invention, a roller brush assembly is disclosed, comprising: a rolling brush; the limiting piece is movably arranged on the rolling brush, and the rolling brush is assembled or disassembled through the limiting piece; the operation part is arranged on the limiting piece and is used for driving the limiting piece to move under the action of external force.
Further, the limiting piece is provided with a first position and a second position; in the first position of the limiting piece, the limiting piece is in limiting fit with a preset structure; in the second position of the limiting piece, the limiting piece is separated from limiting fit with the preset structure; the limiting piece is switched between the first position and the second position through movement.
Further, the limiting piece is provided with a first end and a second end, the first end of the limiting piece is rotatably connected to the rolling brush, the operating part is located at the second end of the limiting piece, and the limiting piece is switched between the first position and the second position through rotation.
Further, a limiting protrusion matched with the preset structure is arranged on the limiting piece.
Further, a guide surface for guiding the assembly direction during assembly is arranged on the limit protrusion.
Further, the roll brush assembly further includes: and the reset spring is connected between the limiting piece and the rolling brush.
Further, the limiting piece is provided with a first side and a second side which are oppositely arranged, the limiting protrusion is located on the first side of the limiting piece, and the reset spring is located on the second side of the limiting piece.
Further, the operation portion and the stopper are integrally formed.
Further, the roll brush includes: a rolling brush body; the bearing seat, the one end of round brush body rotationally sets up on the bearing seat, the locating part sets up on the bearing seat.
According to a second aspect of the invention, a floor brush is also disclosed, comprising the rolling brush assembly.
Further, the floor brush includes: the support, the support is provided with the spacing groove, the locating part with spacing groove spacing cooperation.
Further, the rolling brush is provided with a mounting seat, and the limiting piece is rotatably arranged on the mounting seat; the support is provided with a guide groove matched with the mounting seat, when the roller brush is assembled, the mounting seat moves along the guide groove, and the guide groove is used for guiding the roller brush to an assembling position.
Further, the limiting groove is formed in the inner wall of the guide groove.
Further, the operation portion is located at an entrance position of the guide groove.
According to a third aspect of the present invention, a vacuum cleaner is disclosed comprising the above-mentioned floor brush.
According to the rolling brush assembly, the limiting piece is movably arranged on the rolling brush, the rolling brush can be taken down by hand while the limiting piece is moved, and the limiting piece can be moved to a fixed position by hand after being assembled during assembly, so that one hand can be used for operation during assembly and disassembly, the operation steps are greatly simplified, the assembly and disassembly efficiency is improved, and the user experience is optimized.
Drawings
FIG. 1 is a schematic view of a rolling brush assembly according to a first embodiment of the present invention;
FIG. 2 is an exploded view of a roller brush assembly according to a first embodiment of the present invention;
FIG. 3 is a schematic view of a floor brush according to a second embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3A;
FIG. 5 is a schematic structural view of a limiting member of a rolling brush assembly of a floor brush in a second embodiment of the present invention in a second position;
FIG. 6 is a schematic view of a rolling brush assembly process of a floor brush according to a second embodiment of the present invention;
fig. 7 is a schematic structural view of a support of a floor brush according to a second embodiment of the present invention;
legend: 10. a rolling brush; 11. a rolling brush body; 12. a bearing seat; 13. a mounting base; 20. a bracket; 21. a limit groove; 22. a guide groove; 221. an inlet; 30. a limiting piece; 31. a limit protrusion; 311. a guide surface; 40. an operation unit; 50. and a return spring.
Detailed Description
The invention is further illustrated, but is not limited to, the following examples.
As shown in fig. 1 and 2, according to an embodiment of the present invention, there is disclosed a roll brush assembly including a roll brush 10, a stopper 30, and an operation part 40, the stopper 30 being movably provided on the roll brush 10, the roll brush 10 being assembled or disassembled by the stopper 30; the operation portion 40 is disposed on the limiting member 30, and the operation portion 40 is configured to drive the limiting member 30 to move under the action of an external force. When the rolling brush 10 is disassembled, the operating part 40 can be stirred by a finger, so that the operating part 40 drives the limiting piece 30 to move, and the rolling brush 10 is disassembled; at the time of assembly, after the rolling brush assembly is mounted to the assembly position, the operating part 40 is moved reversely to fix the rolling brush 10, thereby achieving the mounting and dismounting of the rolling brush 10.
According to the rolling brush assembly, the limiting piece 30 is movably arranged on the rolling brush 10, the rolling brush 10 can be taken down by hand while the limiting piece 30 is moved, and the limiting piece 30 can be moved to a fixed position by hand after being assembled during assembly, so that one hand can be used for operation during assembly and disassembly, the operation steps are greatly simplified, the assembly and disassembly efficiency is improved, and the user experience is optimized.
The limiting member 30 has a first position and a second position; in the first position of the limiting piece 30, the limiting piece 30 is in limiting fit with a preset structure; in the second position of the limiting member 30, the limiting member 30 is separated from the preset structure; the stopper 30 is switched between the first position and the second position by moving.
When the rolling brush 10 is disassembled, the operating part 40 is moved by hand, the limiting piece 30 is electrically driven to the second position through the operating part 40, at the moment, the limiting piece 30 is separated from limiting fit with the preset structure, and meanwhile, the rolling brush 10 is continuously moved towards a position far away from the preset structure by force, so that the rolling brush 10 can be taken out; when installing the round brush 10, put into the assembly position with round brush 10 after, the locating part 30 can remove to the first position under the effect of external force, and locating part 30 and the spacing cooperation of predetermineeing the structure this moment, the removal of round brush 10 is restricted, can't remove, that is to say, round brush 10 is fixed on predetermineeing the structure through locating part 30, and whole installation needs the hand all to be located round brush 10 all the time, need not remove to other positions, also need not other operations, therefore, the operation step is simpler, user experience is good.
In this embodiment, the limiting member 30 has a first end and a second end, the first end of the limiting member 30 is rotatably connected to the roller brush 10, the operating portion 40 is located at the second end of the limiting member 30, and the limiting member 30 is switched between the first position and the second position by rotating. Through rotationally setting up locating part 30 on round brush 10 to can stir the swing of operating portion 40 control locating part 30, thereby realize with predetermineeing spacing cooperation and break away from spacing cooperation of structure, make the operation process more simple and convenient.
Further, the limiting member 30 is provided with a limiting protrusion 31 that is matched with the preset structure. A limiting groove 21 matched with the limiting protrusion 31 is formed in the preset structure; when the limiting piece 30 is at the first position, the limiting protrusion 31 is located in the limiting groove 21 and is in limiting fit with the limiting groove 21, so that the rolling brush 10 is separated from the preset structure; when the limiting piece 30 is at the second position, the limiting protrusion 31 is disengaged from the limiting groove 21, the limiting piece 30 does not limit the rolling brush 10, at this time, the operating portion 40 needs to be moved continuously in a direction away from the preset structure, the limiting piece 30 is driven to move by the operating portion 40, and the limiting piece 30 drives the whole rolling brush 10 to be separated from the preset structure, so that the rolling brush 10 is detached, and the operation process is simple and convenient.
The limit projection 31 is provided with a guide surface 311 for guiding the assembly direction at the time of assembly. By providing the guide surface 311, the limit projection 31 can be guided into the limit groove 21 when the roll brush 10 is assembled, thereby improving the assembling rate.
It should be noted that the rolling brush assembly further includes a return spring 50, and the return spring 50 is connected between the limiting member 30 and the rolling brush 10. Preferably, the limiting member 30 has a first side and a second side disposed opposite to each other, the limiting protrusion 31 is located on the first side of the limiting member 30, and the return spring 50 is located on the second side of the limiting member 30. Typically, the guide surface 311 is used in conjunction with the return spring 50. When the rolling brush 10 is disassembled, the rolling brush 10 can be taken out by hand after the operation part 40 is shifted to enable the limit protrusion 31 to be disengaged from the limit groove 21, and at the moment, the reset spring 50 is compressed; when the rolling brush 10 is installed, the rolling brush 10 is only required to be directly pushed into the assembly position when the rolling brush 10 is taken out, and the guide surface 311 guides the limiting protrusion 31 into the limiting groove 21 in the pushing process, so that the rolling brush 10 is automatically locked, only two steps are needed when the rolling brush 10 is dismounted, only one step is needed when the rolling brush 10 is installed, the operation steps are simple, and the user experience is good.
In order to improve the reliability, the operation portion 40 and the stopper 30 are integrally formed, and the operation portion 40 and the stopper 30 are integrally formed, so that the manufacturing process is simpler and the cost is lower.
In this embodiment, the rolling brush 10 includes a rolling brush body 11 and a bearing seat 12, the rolling brush body 11 has a rotating end and a driving end, the rotating end is rotatably disposed on the bearing seat 12, the driving end is connected with a motor in a driving manner, and the limiting member 30 is disposed on the bearing seat 12. Specifically, the bearing housing 12 has a first side and a second side disposed opposite to each other, the rotating end of the rolling brush body 11 is connected to the first side of the bearing housing 12 through a bearing, and the stopper 30 is rotatably connected to the second side of the bearing housing 12.
When the rolling brush assembly is disassembled, the operating part 40 is grasped by hands to be broken off towards the center direction of the rolling brush 10 to be in contact with the bearing seat 12, at the moment, the limiting piece 30 is separated from the limiting groove 21, and then the rolling brush 10 can be taken out by pulling out in the direction away from the preset structure; when the rolling brush 10 is installed, the driving end of the rolling brush 10 is firstly assembled with the transmission rod, then the bearing seat 12 is pressed to the bottom in the assembly direction, when the bearing seat 12 is pressed to the bottom, the limiting piece 30 can be opened under the action of the reset spring 50, so that the limiting piece 30 enters the limiting groove 21 and is in limiting fit with the limiting groove 21, at the moment, the movement of the rolling brush 10 is limited and cannot be moved, thereby the rolling brush assembly is fixed, the operation steps are simple, and the user experience is good.
In a second embodiment of the present invention, as shown in fig. 3 to 7, a floor brush is also disclosed, which includes the rolling brush assembly described above.
In this embodiment, the floor brush includes a support 20, the support 20 is of the above-mentioned preset structure, a limiting groove 21 is disposed on the support 20, and a limiting protrusion 31 on the limiting member 30 is in limiting fit with the limiting groove 21.
The bearing seat 12 is further provided with a mounting seat 13, the mounting seat 13 is located on the second side of the bearing seat 12, a mounting cavity is formed in the mounting seat 13, the bottom of the mounting seat 13 is provided with a mounting opening communicated with the mounting cavity, the first end of the limiting piece 30 penetrates through the mounting opening to enter the mounting cavity, and the first end of the limiting piece 30 is rotatably arranged in the mounting cavity and can swing in a certain amplitude.
The support 20 is provided with a guide groove 22 matched with the mounting seat 13, when the roller brush 10 is assembled, the mounting seat 13 moves along the guide groove 22, and the guide groove 22 is used for guiding the roller brush 10 to an assembling position. The limiting groove 21 is arranged on the inner wall of the guide groove 22. Through setting up mount pad 13, mount pad 13 not only can be used for installing locating part 30, can also cooperate with guide slot 22, is used for guiding the assembly of round brush 10, guides locating part 30 to spacing protruding 31 and spacing groove 21 can spacing complex position to realize a thing is multi-purpose. In addition, the mounting seat 13 is at least partially rectangular, and can be used for limiting the bearing seat 12 to rotate along with the rolling brush 10 after being matched with the guide groove 22, so that three purposes are realized.
For convenience of operation, the operation portion 40 is located at the inlet 221 of the guide groove 22. Specifically, the position of the inlet 221 of the guide groove 22 is a relief opening of the through groove structure, and the entire operation portion 40 is located at the relief opening position, so that the operation can be facilitated. In another embodiment, not shown, a part of the operation portion 40 is located in the guide groove 22, and the other part extends out of the guide groove 22, so that the purpose of convenient operation can be achieved.
According to a third embodiment of the invention, a dust collector is disclosed, comprising the floor brush.
It should be understood that the above-described embodiments of the present invention are provided by way of example only and are not intended to limit the scope of the invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. Not all embodiments are exhaustive. All obvious changes or modifications which come within the spirit of the invention are desired to be protected.
Claims (7)
1. A floor brush comprises a rolling brush component, and is characterized in that,
the roll brush assembly includes:
a roller brush (10);
the limiting piece (30) is movably arranged on the rolling brush (10), and the rolling brush (10) is assembled or disassembled through the limiting piece (30);
the operation part (40) is arranged on the limiting piece (30), and the operation part (40) is used for driving the limiting piece (30) to move under the action of external force;
the limiting member (30) has a first position and a second position;
in a first position of the limiting piece (30), the limiting piece (30) is in limiting fit with a preset structure;
in the second position of the limiting piece (30), the limiting piece (30) is separated from limiting fit with the preset structure;
the limiting piece (30) is switched between the first position and the second position by moving;
the limiting piece (30) is provided with a first end and a second end, the first end of the limiting piece (30) is rotatably connected to the rolling brush (10), the operating part (40) is positioned at the second end of the limiting piece (30), and the limiting piece (30) is switched between the first position and the second position through rotation; a limiting protrusion (31) matched with the preset structure is arranged on the limiting piece (30);
the rolling brush assembly further comprises a return spring (50), and the return spring (50) is connected between the limiting piece (30) and the rolling brush (10);
the floor brush comprises a support (20), wherein the support (20) is provided with a limiting groove (21), and the limiting piece (30) is in limiting fit with the limiting groove (21);
the rolling brush (10) is provided with a mounting seat (13), and the limiting piece (30) is rotatably arranged on the mounting seat (13);
the support (20) is provided with a guide groove (22) matched with the mounting seat (13), the mounting seat (13) moves along the guide groove (22) during assembly, and the guide groove (22) is used for guiding the rolling brush (10) to an assembly position;
the limiting groove (21) is formed in the inner wall of the guide groove (22);
when the limiting piece (30) is at the first position, the limiting protrusion (31) is positioned in the limiting groove (21) and is in limiting fit with the limiting groove (21); when the limiting piece (30) is in the second position, the limiting protrusion (31) is disengaged from the limiting groove (21).
2. The floor brush according to claim 1, wherein,
the limit projection (31) is provided with a guide surface (311) for guiding the assembly direction during assembly.
3. The floor brush according to claim 1, wherein,
the limiting piece (30) is provided with a first side and a second side which are oppositely arranged, the limiting protrusion (31) is located on the first side of the limiting piece (30), and the reset spring (50) is located on the second side of the limiting piece (30).
4. A floor brush according to claim 3, wherein,
the operation part (40) and the limiting piece (30) are integrally formed.
5. The floor brush according to claim 1, characterized in that the roll brush (10) comprises:
a rolling brush body (11);
the rolling brush comprises a bearing seat (12), wherein one end of the rolling brush body (11) is rotatably arranged on the bearing seat (12), and the limiting piece (30) is arranged on the bearing seat (12).
6. The floor brush according to claim 1, wherein,
the operation part (40) is positioned at the position of an inlet (221) of the guide groove (22).
7. A vacuum cleaner comprising a floor brush as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111342862.9A CN113842083B (en) | 2021-11-12 | 2021-11-12 | Rolling brush assembly, ground brush and dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111342862.9A CN113842083B (en) | 2021-11-12 | 2021-11-12 | Rolling brush assembly, ground brush and dust collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113842083A CN113842083A (en) | 2021-12-28 |
| CN113842083B true CN113842083B (en) | 2023-11-14 |
Family
ID=78984273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111342862.9A Active CN113842083B (en) | 2021-11-12 | 2021-11-12 | Rolling brush assembly, ground brush and dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113842083B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20240049936A1 (en) * | 2022-08-10 | 2024-02-15 | Matician, Inc. | Autonomous vacuum mopping system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5231725A (en) * | 1992-07-02 | 1993-08-03 | Tennant Company | No-tool brush changing means |
| DE102005024748A1 (en) * | 2005-02-24 | 2006-08-31 | Leifheit Ag | Carpet cleaner with rotating brushes, comprising locking mechanism for securing and release of brush |
| WO2007085375A1 (en) * | 2006-01-20 | 2007-08-02 | Leifheit Ag | Sweeping machine with removable rotary brush |
| CN106943079A (en) * | 2017-05-15 | 2017-07-14 | 苏州市春菊电器有限公司 | A kind of round brush rapid dismounting apparatus and its cleaning appliance |
| CN208388527U (en) * | 2017-08-28 | 2019-01-18 | 广东新宝电器股份有限公司 | Dust collector |
| CN210931160U (en) * | 2019-08-30 | 2020-07-07 | 苏州普沃达电子科技有限公司 | Floor brush |
| CN111434299A (en) * | 2019-01-11 | 2020-07-21 | 江苏美的清洁电器股份有限公司 | Floor brush and dust collector with same |
| CN211704466U (en) * | 2020-01-13 | 2020-10-20 | 杭州小亿智能科技有限公司 | Rolling brush installation mechanism and sweeper |
-
2021
- 2021-11-12 CN CN202111342862.9A patent/CN113842083B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5231725A (en) * | 1992-07-02 | 1993-08-03 | Tennant Company | No-tool brush changing means |
| DE102005024748A1 (en) * | 2005-02-24 | 2006-08-31 | Leifheit Ag | Carpet cleaner with rotating brushes, comprising locking mechanism for securing and release of brush |
| WO2007085375A1 (en) * | 2006-01-20 | 2007-08-02 | Leifheit Ag | Sweeping machine with removable rotary brush |
| CN106943079A (en) * | 2017-05-15 | 2017-07-14 | 苏州市春菊电器有限公司 | A kind of round brush rapid dismounting apparatus and its cleaning appliance |
| CN208388527U (en) * | 2017-08-28 | 2019-01-18 | 广东新宝电器股份有限公司 | Dust collector |
| CN111434299A (en) * | 2019-01-11 | 2020-07-21 | 江苏美的清洁电器股份有限公司 | Floor brush and dust collector with same |
| CN210931160U (en) * | 2019-08-30 | 2020-07-07 | 苏州普沃达电子科技有限公司 | Floor brush |
| CN211704466U (en) * | 2020-01-13 | 2020-10-20 | 杭州小亿智能科技有限公司 | Rolling brush installation mechanism and sweeper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113842083A (en) | 2021-12-28 |
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