Cleaning device

Abstract

The present invention relates to a cleaning device. The cleaning device comprises a housing, a cleaning component, and a comb assembly. The housing has a housing cavity. The cleaning component is rotatably arranged within the housing cavity. The cleaning element includes a sweeping element. The comb assembly includes a mounting plate and several comb teeth configured to clean the sweeping element. The mounting plate is removably mounted on a wall of the housing cavity. The plurality of teeth is arranged on the mounting plate along an axial direction of the cleaning component. The angle between the teeth and the axial direction of the cleaning component is between 65 and 85 degrees. The comb teeth allow for effective cleaning of the sweeping element, and the comb assembly is easily disassembled and reassembled. (See Figure 3 for an abstract.)

Description

Title of the invention: Cleaning device technical field

[0001] The present invention relates to the technical field of cleaning technologies, and in particular a cleaning device. Technological background

[0002] During a cleaning operation by a cleaning robot or cleaning device such as a sweeping robot or a sweeping and cleaning robot, debris such as hair and fibers easily wrap around a cleaning component such as a roller brush and are not easily vacuumed into a dust collection component. This affects the cleaning effect, and the cleaning component must be cleaned and replaced frequently and is difficult to clean. Summary of the present invention

[0003] The present invention aims to solve, at least to some extent, one of the technical problems of the prior art.

[0004] Embodiments of the present invention provide a cleaning device.

[0005] The cleaning device according to the embodiments of the present invention comprises: - a case, the case being provided with a housing cavity; - a cleaning component, the cleaning component being arranged rotatably within the housing cavity around a central axis of the cleaning component, and the cleaning component being provided with a sweeping element; and - a comb assembly, the comb assembly comprising a mounting plate and a plurality of comb teeth configured to clean the sweeping element, the mounting plate being removably mounted on a wall of the housing cavity, the plurality of comb teeth being arranged on the mounting plate and arranged along an axial direction of the cleaning component, and an angle between a comb tooth and the axial direction of the cleaning component being greater than or equal to 65 degrees and less than or equal to 85 degrees.

[0006] In the cleaning device according to embodiments of the present invention, the comb assembly is removably arranged on a wall of the housing cavity, which facilitates its disassembly, maintenance, and replacement. At the same time, the angle between the comb and the axial direction of the cleaning component is greater than or equal to 65 degrees and less than or equal to 85 degrees, which improves The cleaning effect of the comb on debris wrapped around the sweeping element is crucial. If the angle between the comb and the axial direction of the cleaning component is less than 65 degrees, the resistance of the comb to the sweeping element is significant, affecting the rotation of the cleaning component, increasing energy consumption, and potentially damaging the sweeping element. If the angle between the comb and the axial direction of the cleaning component is greater than 85 degrees, the sweeping element easily passes through a gap between adjacent combs as it sweeps across them, thus impacting the cleaning effect of the comb on the sweeping element. Therefore, in the cleaning device according to embodiments of the present invention, the cleaning effect of the comb on the sweeping element is excellent, and the comb component is easy to disassemble, assemble, and maintain.

[0007] According to a particular embodiment of the present invention, the wall of the receiving cavity is provided with a mounting groove, the wall of the receiving cavity and the mounting groove having an arc-shaped structure, the mounting plate being an arc-shaped plate adapted to the wall of the receiving cavity and the mounting groove, and the mounting plate being removably mounted in the mounting groove.

[0008] According to a particular embodiment of the present invention, the mounting plate is snapped into the mounting groove by a snap-fit ​​structure.

[0009] According to a particular embodiment of the present invention, the comb and the mounting plate are formed entirely by injection molding.

[0010] According to a particular embodiment of the present invention, the mounting plate is provided with a first lateral surface and a second lateral surface extending along the axial direction of the cleaning component, a comb tooth being provided with a first end and a second end, the first end of said comb tooth being adjacent to the first lateral surface of the mounting plate, and the second end of said comb tooth being away from the first lateral surface of the mounting plate, a surface of the first end of the comb tooth being flush with the first lateral surface of the mounting plate, or a surface of the first end of said comb tooth extending outwards beyond the first lateral surface of the mounting plate.

[0011] According to a particular embodiment of the present invention, the housing cavity is provided with a dust collection orifice, the mounting plate being arranged adjacent to the dust collection orifice, the first lateral surface of the mounting plate being adjacent to the dust collection orifice, the second lateral surface of the mounting plate being away from the orifice. dust collection, the first end of the comb tooth being adjacent to the first side surface of the mounting plate, the second end of the comb tooth being away from the first side surface of the mounting plate, and in the axial direction of the cleaning component, one outermost comb tooth is adjacent to a first end of the dust collection orifice, another outermost comb tooth is adjacent to a second end of the dust collection orifice, and / or a distance between the first side surface of the mounting plate and a side edge of the dust collection orifice adjacent to the mounting plate is greater than zero and less than or equal to 10 millimeters.

[0012] According to a particular embodiment of the present invention, the mounting plate has an arc-shaped structure, the plurality of comb teeth comprising a first group of comb teeth and a second group of comb teeth, the first group of comb teeth and the second group of comb teeth being arranged on either side of a central line of the mounting plate, respectively, the first group of comb teeth comprising a plurality of first comb teeth parallel to each other, the second group of comb teeth comprising a plurality of second comb teeth parallel to each other, a first end of a first comb tooth being closer to the central line of the mounting plate than a second end of a tooth of said first comb tooth,and a first end of a second comb tooth being closer to the centerline of the mounting plate than a second end of said second comb tooth.

[0013] According to a particular embodiment of the present invention, a first end of a first innermost comb tooth and a first end of a second innermost comb tooth are connected to each other to form a V, and a distance between a tip of the V-shaped tooth and the first lateral surface of the mounting plate is between 1.5 millimeters and 3.5 millimeters.

[0014] According to a particular embodiment of the present invention, the first group of comb teeth and the second group of comb teeth are symmetrical with respect to the central line of the V-shape.

[0015] According to a particular embodiment of the present invention, in a cross-section of the mounting plate parallel to the axial direction of the cleaning component, the heights of the comb teeth of the plurality of comb teeth gradually decrease from the centerline of the mounting plate to two ends of the mounting plate, or the comb teeth of the plurality of comb teeth comprise at least two different heights, and the comb teeth of different heights are arranged alternately along the axial direction of the cleaning component.

[0016] According to a particular embodiment of the present invention, the height of a comb tooth decreases from a first end of the comb tooth to a second end of the comb tooth, or the height of a first end of the comb tooth is greater than the height of a remaining part of the comb tooth.

[0017] According to a particular embodiment of the present invention, a height of a first end of a comb tooth is greater than a height of a second end of the comb tooth, and / or the first ends of the comb teeth of the plurality of comb teeth comprise at least two different heights, and the second ends of the comb teeth of the plurality of comb teeth comprise at least two different heights.

[0018] According to a particular embodiment of the present invention, two lateral surfaces of a comb tooth are parallel to each other and inclined with respect to the mounting plate, an upper edge of a lateral surface of the comb tooth being further from the centerline than a lower edge of the lateral surface.

[0019] According to a particular embodiment of the present invention, the width of a first end of a comb tooth is less than the width of a remaining part of said comb tooth, and an upper surface of a comb tooth forms an arc transition with a surface of a second end of said comb tooth and two lateral surfaces of said comb tooth respectively.

[0020] According to a particular embodiment of the present invention, a pitch between adjacent comb teeth gradually increases from the centerline of the mounting plate towards the two ends of the mounting plate, or at least two different pitches are determined between adjacent comb teeth, and the different pitches are defined alternately along the axial direction of the cleaning element.

[0021] According to a particular embodiment of the present invention, a maximum pitch between adjacent comb teeth is greater than or equal to 1.5 millimeters and less than or equal to 3 millimeters.

[0022] According to a particular embodiment of the present invention, the width of the widest part of a comb tooth is greater than or equal to 1 millimeter and less than or equal to 2 millimeters, the length of a comb tooth is greater than or equal to 10 millimeters and less than or equal to 20 millimeters, the height of the highest part of a comb tooth is greater than or equal to 2.5 millimeters and less than or equal to 5 millimeters, and the height of the lowest part of a comb tooth is greater than or equal to 1 millimeter and less than or equal to 2 millimeters.

[0023] According to a particular embodiment of the present invention, the receiving cavity being provided with a dust collection orifice, the cross-section of the receiving cavity being arc-shaped, the dust collection orifice being in the shape of a rounded rectangle or a rounded trapezoid, a diameter of the receiving cavity being greater than or equal to 40 millimeters and less than or equal to 60 millimeters, a length of the dust collection orifice greater than or equal to 50 millimeters and less than or equal to 80 millimeters, and a width of the dust collection orifice greater than or equal to 15 millimeters and less than or equal to 25 millimeters.

[0024] According to a particular embodiment of the present invention, the housing cavity is provided with a dust collection orifice, the cleaning component further comprising a rotating shaft and locking discs, the locking discs being mounted at a first rotating end and a second rotating end of the rotating shaft respectively, a barrier element being arranged on at least a portion of an outer peripheral surface of the locking disc, the sweeping element comprising at least one row of bristles, the row of bristles comprising a first segment and a second segment, the first segment and the second segment extending spirally around an axial direction of the rotating shaft, a spiral direction of the first segment being opposite to a spiral direction of the second segment, a joint between the first segment and the second segment being located in a midpoint of the rotating shaft,and a position for the dust collection port, a position for the mounting plate, and the articulation between the first segment and the second segment corresponding to each other.

[0025] According to a particular embodiment of the present invention, the housing cavity is provided with a dust collection orifice, the cleaning component further comprising a rotating shaft and a locking disc, a first rotating end of the rotating shaft being rotatably supported on the housing, a second rotating end of the rotating shaft being suspended, the locking disc being mounted on the first rotating end of the rotating shaft, a barrier element being arranged on at least a part of an outer peripheral surface of the locking disc, the sweeping element comprising at least one row of bristles, the row of bristles extending spirally around an axial direction of the rotating shaft, and a position of the dust collection orifice and a position of the mounting plate being adjacent to the second rotating end of the rotating shaft. Brief description of the figures

[0026] [Fig.1] is a schematic diagram of a cleaning device according to an embodiment of the present invention;

[0027] [Fig.2] is a schematic bottom view of a cleaning device according to an embodiment of the present invention;

[0028] [Fig.3] is a schematic view of the underside of a cleaning device with a cleaning component removed according to an embodiment of the present invention;

[0029] [Fig.4] is a partially enlarged diagram of a receiving cavity of the [Fig.3];

[0030] [Fig.5] is a schematic diagram of the planar projection of a component of a comb of a cleaning device according to an embodiment of the present invention;

[0031] [Fig.6] is a schematic side view of a comb of a cleaning device according to an embodiment of the present invention;

[0032] [Fig.7] is a schematic cross-sectional view of a comb component of a cleaning device along an axial direction parallel to a cleaning component according to an embodiment of the present invention; and

[0033] [Fig.8] is a schematic diagram of a cleaning component of a cleaning device according to an embodiment of the present invention.

[0034] Numerical references: 100, cleaning device; 1, housing; 11, housing cavity; 12, dust collection port; 121, first lateral edge of the dust collection port; 122, second lateral edge of the dust collection port; 123, first end of the dust collection port; 124, second end of the dust collection port; 13, mounting groove; 2, cleaning component; 21, sweeping element; 211, first segment; 212, second segment; 22, rotating shaft; 23, locking disc; 3, comb component; 31, mounting plate; 311, first side surface; 312, second side surface; 313, clamping groove; 32, comb tooth; 321, first end of a comb tooth; 322, second end of a comb tooth; 32A, first comb tooth; 32B, second comb tooth; 301, upper surface of a comb tooth; 302, side surface of a comb tooth; 3021, upper edge of the side surface of a comb tooth; 3022, lower edge of the side surface of a comb tooth. Description of examples of achievements

[0035] Embodiments of the present invention are described in detail below, and examples of these embodiments are illustrated in the figures. The embodiments described below with reference to the figures are exemplary and are intended to explain the present invention, and shall not be construed as limiting the present invention.

[0036] In the prior art, it is proposed to arrange cleaning teeth to remove debris such as hair wrapped around the cleaning component during the cleaning process. However, the cleaning teeth in the prior art suffer from a poor cleaning effect, and it is necessary to improve them.

[0037] The inventors of the present invention have discovered and validated through research that, in the prior art, for a cleaning robot or cleaning device such as a sweeping robot or a sweeping and cleaning robot, in order to clean debris such as hair wrapped around a main brush, combs are generally arranged in a mounting cavity of the main brush. Although the combs can clean the main brush to some extent, the cleaning effect is poor in actual use. The main brush must be disassembled for manual cleaning, and it is frequently disassembled and reassembled. Replacing and maintaining the combs once they are worn is impractical. The arrangement of the combs can also affect and increase the energy consumption of the cleaning device.To this end, based on the aforementioned research, the inventors of the present invention propose corresponding improvement measures for at least one or more of the following: improvement of the cleaning effect on debris such as hair and fibers wrapped around the main brush, reduction of the frequency of replacement of the main brush, improvement of the ease of replacement and maintenance of the comb, improvement of ease of use and cleaning effect, reduction of energy consumption, and so on.

[0038] A cleaning device according to embodiments of the present invention will be described below with reference to the figures.

[0039] The cleaning device according to the embodiments of the present invention may be, without limitation, a sweeping robot and a sweeping and cleaning robot.

[0040] As shown in Figures 1 to 8, the cleaning device according to the embodiments of the present invention comprises a housing 1, a cleaning component 2 and a comb assembly 3.

[0041] The housing 1 is provided with a receiving cavity 11, and the receiving cavity 11 is provided with a dust collection orifice 12. As shown in Figures 2 and 3, the receiving cavity 11 has a longitudinal direction A, such as the left-to-right direction in Figures 2 and 3. It can be understood that the receiving cavity 11 has an opening on the lower surface of the housing 1. The cleaning component 2 sweeps a surface to be cleaned, such as dirt on the floor, into the receiving cavity 11 through the opening. As shown in Figures 2 and 3, in this example, the opening of the receiving cavity 11 is substantially rectangular. The long edge of the rectangle extends in the longitudinal direction A.

[0042] The cleaning element 2 is rotatably arranged in the receiving cavity 11 around a central axis line thereof, and the cleaning element 2 is provided with a sweeping element 21. In some embodiments, as shown in [Fig. 2], the cleaning component 2 is arranged in the receiving cavity 11 and extends the along the longitudinal direction A. The centerline of the cleaning component 2 is parallel to the longitudinal direction A. In other words, an axial direction of the cleaning component 2 is consistent with the longitudinal direction A. In the example shown in [Fig. 2], the centerline of the cleaning component 2 extends along the left-right direction. In one embodiment of the present invention, the centerline of the cleaning component, the axial direction of the cleaning component, and the longitudinal direction of the cleaning component can all be designated by A.

[0043] In some embodiments, the cleaning element 2 may be a main brush. The sweeping element 21 may consist of bristles and / or a rubber strip arranged on a rotating shaft of the main brush. The sweeping element 21 is configured to come into contact with the surface to be cleaned, such as the floor, in order to sweep the surface to be cleaned.

[0044] The comb assembly 3 comprises a mounting plate 31 and several comb teeth 32. The comb teeth 32 are configured to clean the sweeping element 21, including debris such as hair and fibers wrapped around the sweeping element 21. The mounting plate 31 is removably mounted on a wall of the receiving cavity 11. The comb teeth 32 of a plurality of comb teeth are arranged on the mounting plate 31 and positioned along the axial direction of the cleaning component 2 (i.e., the longitudinal direction A of the receiving cavity, such as the left-to-right direction in [Fig. 2] and [Fig. 3]). An angle a between a comb tooth 32 and the axial direction of the cleaning element 2 is greater than or equal to 65 degrees and less than or equal to 85 degrees.

[0045] The mounting plate 31 is removably mounted on the wall of the receiving cavity 11. The comb tooth 32 is arranged on a surface of the mounting plate 31. In some embodiments, the mounting plate 31 is removably mounted on the wall of the receiving cavity 11 by means of a snap-fit ​​structure, which further improves the ease of disassembly and assembly of the comb component. When the mounting plate 31 is mounted on the wall of the receiving cavity 11, the comb tooth 32 protrudes from the surface of the wall of the receiving cavity 11. When the cleaning element 2 rotates, the comb tooth 32 can come into contact with the sweeping element 21. In other words, the sweeping element 21 sweeps the comb tooth 32, thus cleaning the sweeping element 21, i.e., debris such as hair and fibers attached or wrapped around the sweeping element 21.

[0046] As shown in Figures 2 to 5, the comb teeth 32 of the plurality of comb teeth are arranged on the mounting plate 31 along the longitudinal direction A. The comb tooth 32 extends obliquely with respect to the direction axial of the cleaning component 2 (i.e., the longitudinal direction A of the receiving cavity). An included angle α between the comb tooth 32 and the axial direction of the cleaning component 2 is greater than or equal to 65 degrees and less than or equal to 85 degrees. In some embodiments, as shown in [Fig. 5], in planar projection, an included angle α between the comb tooth 32 and the left-right direction is greater than or equal to 65 degrees and less than or equal to 85 degrees. In some embodiments, the included angle α is approximately 70 degrees.

[0047] In embodiments of the present invention, the "comb" has the shape of an elongated convex strip. In some embodiments, the length L of the comb tooth 32 may be greater than 5 times the width W of the comb. In some embodiments, the length L of the comb tooth 32 may be more than 10 times the width W of the comb.

[0048] In the cleaning device according to embodiments of the present invention, the comb assembly is removably arranged on the wall of the housing cavity, which facilitates disassembly, maintenance, and replacement of the comb assembly. Simultaneously, the angle between the comb tooth and the axial direction of the cleaning component is greater than or equal to 65 degrees and less than or equal to 85 degrees, which prevents the sweeping element from easily passing through a gap between adjacent comb teeth when sweeping over the comb assembly, thus improving the cleaning effect of the comb on debris wrapped around the sweeping element. Furthermore, the comb must not offer excessive resistance to the sweeping element, which reduces the risk of damage to the sweeping element. The cleaning element rotates smoothly, and energy consumption is low.

[0049] The inventors have identified that if the angle α between the comb tooth and the axial direction of the cleaning component is less than 65 degrees, the resistance of the comb on the sweeping element is significant. If the included angle α between the comb tooth and the axial direction of the cleaning component is greater than 85 degrees, the sweeping element easily passes through a gap between adjacent comb teeth when sweeping the comb, which affects the cleaning effect of the comb on the sweeping element.

[0050] Therefore, in the cleaning device according to the embodiments of the present invention, it is easy to disassemble, assemble and maintain the comb assembly, the cleaning effect of the comb on the sweeping element is excellent and the cleaning component does not need to be frequently disassembled and assembled for manual cleaning.

[0051] In some cases, the wall of the receiving cavity 11 is provided with a mounting groove 13. The wall of the receiving cavity 11 and the mounting groove 13 may have an arc-shaped structure. The mounting plate 31 can be an arc-shaped plate adapted to the wall of the receiving cavity 11 and the mounting groove 13. As shown in [Fig. 6], the mounting plate 31 is removably mounted in the mounting groove 13. In some cases, the axial directions of the arc-shaped receiving cavity wall 11, the mounting groove 13 and the mounting plate 31 correspond to the axial direction of the cleaning element 2, i.e. the longitudinal direction A.

[0052] The mounting plate 31 is removably mounted in the mounting groove 13. In some embodiments, once the mounting plate 31 is mounted in place in the mounting groove 13, a surface of the mounting plate 31 provided with the comb teeth 32 is at the same level as the surface of the wall of the receiving cavity 11. The comb teeth 32 protrude from the surface of the wall of the receiving cavity 11, which not only ensures contact between the comb teeth 32 and the receiving element 21, but also prevents contact between the mounting plate 31 and the receiving element 21 which would otherwise block the receiving element 21.

[0053] In some embodiments, the mounting plate 31 is snapped into the mounting groove 13 by the snap-fit ​​structure. As shown in [Fig. 6], the snap-fit ​​structure comprises a clamping groove 313 and a clamping protrusion that are adapted (not shown). The clamping groove 313 is located at the rear end of the mounting plate 31. The clamping protrusion is arranged on a wall of the mounting groove 13. When the mounting plate 31 is mounted in the mounting groove 13, the clamping protrusion is mounted in the clamping groove 313, which facilitates quick mounting and dismounting of the mounting plate, as well as processing of the mounting plate.

[0054] In some embodiments, the comb 32 and the mounting plate 31 are formed entirely by injection molding, which reduces costs and facilitates the processing of the entire comb assembly.

[0055] As shown in Figures 4 to 6, in certain embodiments, the mounting plate 31 is provided with a first lateral surface 311 and a second lateral surface 312 extending along the axial direction of the cleaning component 2, i.e. that the first lateral surface 311 and the second lateral surface 312 extend along the longitudinal direction A and are opposite each other in a circumferential direction of the receiving cavity 11. The comb tooth 32 is provided with a first end 321 and a second end 322 opposite each other along a first extension direction of the comb tooth. The first end 321 of the comb tooth 32 is adjacent to the first lateral surface 311 of the mounting plate 31, and the second end 322 of the comb tooth 32 is away from the first lateral surface 311 of the mounting plate 31. The surface of the first end 321 of the comb tooth 32 can be flush with the first lateral surface 311 of the mounting plate 31; that is, the first end 321 of the comb tooth 32 does not extend beyond the first lateral surface 311 of the mounting plate 31. In some embodiments, as shown in [Fig. 6], the surface of the first end 321 of the comb tooth 32 extends outward beyond the first lateral surface 311 of the mounting plate 31. Here, "outward" means that the first end 321 of the comb tooth 32 extends beyond the first lateral surface 311 in a direction away from the first lateral surface 311 of the mounting plate 31 (for example, a direction perpendicular to the axial direction of the cleaning component, a left-to-right direction in [Fig. 6]), as illustrated in the [Fig.6]. It can be understood that, in the example illustrated in [Fig.6], the surface of the first end 321 of the comb tooth 32 is aligned with the first lateral surface 311 of the mounting plate 31 in a direction of inclination.

[0056] In some embodiments, the mounting plate 31 and the dust collection port 12 are arranged side by side along the circumferential direction of the housing cavity 11. The mounting plate 31 is located downstream of the dust collection port 12 in the direction of rotation of the cleaning element 2. The first lateral surface 311 of the mounting plate 31 is adjacent to the dust collection port 12, and the second lateral surface 312 of the mounting plate 31 is away from the dust collection port 12. The first end 321 of the comb tooth 32 is adjacent to the first lateral surface 311 of the mounting plate 31, and the second end 322 of the comb tooth 32 is away from the first lateral surface 311 of the mounting plate 31.

[0057] The dust collection port 12 is provided with a first lateral edge 121 and a second lateral edge 122 extending along the first axial direction of the cleaning component. The first lateral edge 121 and the second lateral edge 122 are opposite each other along the first direction of the housing cavity 11. The first lateral edge 121 is closer to the mounting plate 31 than the second lateral edge 122. In other words, the first lateral edge 121 of the dust collection port 12 is adjacent to the first lateral surface 311 of the mounting plate 31.

[0058] In the axial direction of the cleaning element 2, an outer comb tooth among the comb teeth 32 is adjacent to the first end 123 of the dust collection orifice 12 (the left end of the dust collection orifice 12 as illustrated in [Fig.4]), and another outer comb tooth among the comb teeth 32 is adjacent to the second end 124 of the dust collection orifice 12 (the right end of the dust collection orifice 12 as illustrated in [Fig.4]).

[0059] The distance between the first lateral surface 311 of the mounting plate 31 and the first lateral edge 121 of the dust collection port 12 is greater than zero and less than or equal to ten millimeters (10 mm). In some embodiments, the distance between the first lateral surface 311 of the mounting plate 31 and the first lateral edge 121 of the dust collection port 12 is 3 mm, 5 mm, 8 mm, or 10 mm. As shown in [Fig. 4], the pitch is the distance between the first lateral surface 311 and the first lateral edge 121 along the first direction in [Fig. 4]. Since the mounting plate 31 and the wall of the receiving cavity 11 are arc-shaped, the distance can also be designated as the distance between the first lateral surface 311 and the first lateral edge 121 in the circumferential direction of the receiving cavity and the mounting plate.

[0060] During a rotation process of the cleaning element 2, the receiving element 21 first sweeps the surface to be cleaned through the opening of the receiving cavity 11, then passes through the dust collection orifice 12. The swept-away dirt is drawn into the dust collection orifice 12. Next, the sweeping element 21 reaches the comb tooth 32 and first comes into contact with the first end 321 of the comb tooth 32. The sweeping element 21 sweeps the comb tooth 32, so that the comb tooth 32 cleans the debris wrapped around the sweeping element 21, and the cleaned debris is drawn into the dust collection orifice 12.

[0061] The distance between the first lateral surface 311 of the mounting plate 31 and the first lateral edge 121 of the dust collection orifice 12 is greater than zero and less than or equal to 10 mm, and the distance between the first end 321 and the first lateral edge 121 of the dust collection orifice 12 is indirectly limited, so that the debris cleaned by the comb tooth 32 enters the dust collection orifice 12 more easily. If the distance between the first lateral surface 311 of the mounting plate 31 and the first lateral edge 121 of the dust collection orifice 12 is less than zero, the mounting plate 31 extends into the dust collection orifice 12, which may affect the airflow entering the dust collection orifice 12 and increase wind resistance.If the distance between the first lateral surface 311 of the mounting plate 31 and the first lateral edge 121 of the dust collection port 12 is greater than 10 mm, it is not easy for the cleaned debris to enter the dust collection port, which affects the cleaning effect.

[0062] As shown in Figures 4 and 5, along the axial direction of the cleaning component 2, i.e., along the left-to-right direction in Figures 4 and 5, the leftmost comb tooth is adjacent to the left end of the dust collection orifice 12. Being adjacent means that the leftmost comb tooth can be located on the right side of the left end of the collection orifice. dust 12 or on the left side of the left end of the dust collection orifice 12, but that the leftmost comb tooth and the left end are adjacent to each other. The rightmost comb tooth 32 is adjacent to the right end of the dust collection orifice 12. Similarly, the rightmost comb tooth can be located on the right side of the right end of the dust collection orifice 12 or on the left side of the right end of the dust collection orifice 12. In other words, the comb tooth corresponds to the dust removal orifice, so that debris cleaned by the comb tooth 32, such as hair, is more easily guided towards the dust collection orifice 12, thus drawing the debris into the dust collection orifice 12 and preventing the cleaned debris from accumulating at the left and right ends of the receiving cavity 11.

[0063] In some cases, the mounting plate 31 has an arc-shaped structure, i.e., the mounting plate 31 is an arc-shaped plate. The comb teeth 32 comprise a first group of comb teeth and a second group of comb teeth. The first group of comb teeth and the second group of comb teeth are located respectively on either side of the centerline B of the mounting plate 31. The centerline B is a centerline of the mounting plate 31 orthogonal to the axial direction of the cleaning element 2. The centerline can also be designated as a boundary between the first group of comb teeth and the second group of comb teeth.

[0064] As shown in [Fig. 5], the first group of comb teeth comprises a plurality of first comb teeth 32A parallel to each other, and the second group of comb teeth comprises a plurality of second comb teeth 32B parallel to each other. The first end 321 of the first comb tooth 32A is closer to the centerline B of the mounting plate 31 than the second end 322 of the first comb tooth 32A. The first end 321 of the second comb tooth 32B is closer to the centerline B of the mounting plate 31 than the second end 322 of the second comb tooth 32B.

[0065] The comb teeth 32 of the plurality of comb teeth are arranged in the first left-to-right direction and classified into a first group of comb teeth and a second group of comb teeth. The first group of comb teeth is located on the left side of the centerline B of the mounting plate 31, and the second group of comb teeth is located on the right side of the centerline B of the mounting plate 31.

[0066] The first group of comb teeth and the second group of comb teeth both comprise a plurality of 32 comb teeth, the comb teeth of the The first group of comb teeth is called the first comb teeth 32A, and the comb teeth 32 of the second group of comb teeth are called the second comb teeth 32B. The first comb teeth 32A of the plurality of first comb teeth are arranged parallel to each other, and the second comb teeth 32B of the plurality of second comb teeth are arranged parallel to each other.

[0067] As shown in [Fig. 4], the first end 321 of the first comb tooth 32A is closer to the center line B of the mounting plate 31 than the second end of the tooth 322 of the first comb tooth 32A. In other words, the first comb tooth 32A is inclined downwards from left to right. The first end 321 of the second comb tooth 32B is closer to the center line B of the mounting plate 31 than the second end of the tooth 322 of the second comb tooth 32B. In other words, the second comb tooth 32B is inclined downwards from right to left.

[0068] The inclination directions of the first comb tooth 32A and the second comb tooth 32B are defined such that the cleaned debris can be better guided towards the dust collection orifice 12 to be sucked up through the dust collection orifice, thus preventing the cleaned debris from accumulating at both ends of the receiving cavity.

[0069] In certain embodiments, the first end 321 of the first comb tooth 32A and the first end 321 of the second comb tooth 32B are connected to each other to form a V. The distance S between a tip of the V-shape and the first lateral surface 311 of the mounting plate 31 is between 1.5 mm and 3.5 mm. Along the axis of rotation of the cleaning element 2, the tip of the V-shape faces the dust collection port 12.

[0070] The first rightmost comb tooth and the second leftmost comb tooth form a V, so that the scanning element located in the middle cannot pass through a gap between the first rightmost comb tooth and the second leftmost comb tooth.

[0071] The distance S between the V-shaped tip and the first lateral surface 311 of the mounting plate 31 (i.e., the distance between the V-shaped tip and an upper edge of the first lateral surface 311) can be between 1.5 mm and 3.5 mm. In some embodiments, the distance S between the tip of the V and the first lateral surface 311 of the mounting plate 31 is 1.5 mm, 2.0 mm, 2.5 mm, or 3.5 mm. An upper edge of an end surface of the first end 321 of the remaining comb teeth 32 is either level with the first lateral surface 311 (an upper edge of the lateral surface) of the mounting plate 31 or extends outward beyond it. If the distance S is less than 1.5 mm, The first and second comb teeth, which form a V, generate relatively significant resistance on the sweeping element, affecting the rotation of the cleaning component. If the distance S is greater than 3.5 mm, the cleaning effect is poor.

[0072] In some embodiments, the first group of comb teeth and the second group of comb teeth are symmetrical with respect to the centerline of the V-shape. The centerline of the V-shape can be a starting point or an ending point. The centerline of the V-shape can be a centerline B of the mounting plate. As shown in [Fig. 5], a plurality of first comb teeth 32A of the first group of comb teeth and a plurality of second comb teeth 32B of the second group of comb teeth are symmetrical with respect to the centerline B of the V-shape.In other words, the plurality of first comb teeth 32A of the first group of comb teeth and the plurality of second comb teeth 32B of the second group of comb teeth are in one-to-one correspondence and symmetrical to each other with respect to the centerline B of the mounting plate 31, so that the cleaned debris can be better guided towards the dust collection orifice and the cleaned debris cannot accumulate at both ends of the receiving cavity.

[0073] In some embodiments, in a cross-section of the mounting plate 31 parallel to the axial direction of the cleaning component 2, the heights H of the comb teeth 32 of the plurality of comb teeth gradually decrease from the centerline of the mounting plate 31 towards the two ends of the mounting plate 31. In some embodiments, the comb teeth 32 of the plurality of comb teeth comprise at least two different heights H, and the comb teeth 32 of different heights H are arranged alternately along the axial direction of the cleaning component 2.

[0074] As shown in [Fig. 7], in the cross-section of the mounting plate 31 parallel to the vertical direction of the cleaning component 2, the heights of the comb teeth 32 of the plurality of comb teeth may be identical, or may gradually decrease from the central arc of the mounting plate 31 towards the left and right ends of the mounting plate 31. In other words, the heights of the first comb teeth 32A of the plurality of first comb teeth may be identical or gradually decrease from right to left. The heights of the second comb teeth 32B of the plurality of second comb teeth may be identical or gradually decrease from left to right.Here, the "heights of a comb tooth of a plurality of comb teeth in a cross section" refer to the heights of the comb teeth of the plurality of comb teeth at the same location when the comb tooth varies along a . vertical direction of the comb tooth, that is, when a single comb tooth comprises a plurality of height values. Indeed, when the height of a single comb tooth is constant along the vertical direction, each comb tooth comprises a single height. Here, the height of the comb tooth refers to the size of the highest point of the comb tooth in a vertical direction in the cross-section illustrated in [Fig. 7]. In the present invention, the height of the comb tooth can also be replaced by a thickness T of the comb tooth for characterization.

[0075] In the cross-section, the comb teeth 32 of the plurality of comb teeth may also comprise at least two different heights, and the comb teeth 32 of different heights are alternately arranged along the vertical direction of the cleaning component 2. In some embodiments, there may be ten first comb teeth 32A, and the first comb teeth are arranged from left to right. The heights of the first to third comb teeth are identical and are the lowest. The height of the fourth comb tooth is greater than the heights of the first to third comb teeth. The heights of the fifth to seventh comb teeth are identical and greater than the height of the fourth comb tooth. The heights of the ninth to tenth comb teeth are identical and equal to the heights of the fifth to seventh comb teeth.The height of the eighth comb tooth is greater than the height of the fourth comb tooth, but less than the heights of the ninth and tenth comb teeth. The second comb tooth 32B can be arranged symmetrically with respect to the first comb tooth 32A. In some embodiments, comb teeth of different heights can be arranged in other alternating ways.

[0076] The comb teeth of different heights are arranged alternately, so that the comb teeth can penetrate the sweeping element at different depths, thus further improving the cleaning effect, and reducing the resistance on the sweeping element.

[0077] In some embodiments, the height of the comb tooth 32 decreases from the first end 321 of the comb tooth 32 to the second end 322 of the comb tooth 32, and may decrease gradually or in steps. In some embodiments, the height of the first end 321 of the comb tooth 32 is greater than the height of another part of the comb tooth 32, i.e., the first end 321 is the tallest, as shown in [Fig. 6]. In other words, a portion of the upper surface of the first end 321 is farther from the mounting plate 31 than a portion of the upper surface of the remaining part of the comb tooth 32. When the mounting plate and the receiving cavity are arc-shaped, the height H of the comb tooth 32 can be a size of the comb tooth 32 along a radial direction of the host cavity 11.

[0078] In some embodiments, the height of the first end 321 of the comb tooth 32 is greater than the height of the second end 322 of the comb tooth 32.

[0079] In some embodiments, the first ends 321 of the comb teeth 32 of the plurality of comb teeth comprise at least two different heights, and the second ends 322 of the comb teeth 32 of the plurality of comb teeth comprise at least two different heights. The comb teeth 32 of the plurality of comb teeth whose first ends 321 are of different heights are arranged alternately. The comb teeth 32 of the plurality of comb teeth whose second ends 322 are of different heights are arranged alternately. There are at least two sizes of comb teeth 32 penetrating the sweeping element 21, so as to clean debris penetrating the sweeping element 21 at different depths, respectively, and to further improve the cleaning effect.

[0080] In some embodiments, two lateral surfaces 302 of the comb tooth 32 are parallel to each other and inclined with respect to the mounting plate 31, where an upper edge 3021 of the lateral surface 302 of the comb tooth 32 is further from the central arc than a lower edge 3022 of the lateral surface 302. More specifically, as shown in [Fig.7], the first comb 32A is inclined to the left, and the second comb 32B is inclined to the right.

[0081] As shown in [Fig.7], two opposite lateral surfaces of the comb tooth 32 along the left-right direction are parallel to each other and inclined with respect to the mounting plate 31. In other words, the two lateral surfaces on the left and right sides of the comb tooth 32 are not orthogonal to the mounting plate 31. In some embodiments, the included angle [3] between the lateral surfaces on the left and right sides of the comb tooth 32 and the mounting plate 31 is not equal to 90°.

[0082] The lateral surface 302 of the comb tooth 32 is provided with an upper edge 3021 and a lower edge 3022, the upper edge 3021 being an intersection edge between the lateral surface 302 and the upper surface 301 of the comb tooth 32, and the lower edge 3022 being an intersection edge between the lateral surface 302 and the mounting plate 31. The upper edge 3021 of the lateral surface 302 is farther from the centerline B of the mounting plate 31 than the lower edge 3022. In other words, the lateral surface 302 of the first comb 32A is arranged obliquely from left to right along the first direction towards the mounting plate 31, and the surface lateral 302 of the second comb 32B is arranged obliquely from right to left along the first direction towards the mounting plate 31.

[0083] The inclination direction of the lateral surface 302 of the first comb 32A and the inclination direction of the lateral surface 302 of the second comb 32B can guide the cleaned debris towards the middle of the mounting plate 31, so as to guide the cleaned debris towards the dust collection port 12.

[0084] In some embodiments, the width W of the first end 321 of the comb tooth 32 is less than the width W of the rest of the comb tooth 32, and an upper surface 301 of the comb tooth 32 forms an arc transition with an end surface of the second end 322 of the comb tooth 32 and two lateral surfaces 302 of the comb tooth 32, separately.

[0085] As shown in [Fig. 5], the width W of the first end 321 of the comb tooth 32 is less than the width W of the rest of the comb tooth 32. In some embodiments, the width of the first tooth of the end 321 of the comb tooth 32 is reduced relative to the width of the rest of the comb, thus forming a point. Consequently, the comb tooth 32 penetrates the sweeping element 21 more easily.

[0086] As shown in [Fig.6], the upper surface 301 of the comb tooth 32 forms an arc transition with the surface of the second end 322 of the tooth, and the upper surface 301 of the comb tooth 32 forms an arc transition with the lateral surfaces 302 on the left and right sides, thus reducing the resistance of the comb tooth 32 to the sweeping element 21.

[0087] In some embodiments, the pitch P between adjacent comb teeth 32 increases progressively from the centerline B of the mounting plate 31 towards the two ends of the mounting plate 31. In some embodiments, there are at least two different pitches P between adjacent comb teeth 32, and the different pitches are alternately arranged along the axial direction of the cleaning element 2.

[0088] As shown in [Fig.5], the pitch P between adjacent comb teeth 32 increases progressively from the central arc of the mounting plate 31 towards the left end and the right end of the mounting plate 31. In other words, the pitch P between the first adjacent comb teeth 32A increases progressively from the first rightmost comb tooth 32A to the first leftmost comb tooth 32A, and the pitch P between the second adjacent comb teeth 32B increases progressively from the second leftmost comb tooth 32B to the second rightmost comb tooth 32B.

[0089] In some embodiments, there are at least two different pitches P between adjacent comb teeth 32, and the different pitches are arranged alternately along of the axial direction of the cleaning component 2. In some embodiments, the step comprises a first step and a second step. The first step is larger than the second step. Several first steps and several second steps are arranged alternately in the left-right direction to reduce the resistance of the comb tooth 32 on the sweeping member 21.

[0090] In some embodiments, a maximum pitch between adjacent comb teeth 32 is greater than or equal to 1.5 mm and less than or equal to 3 mm.

[0091] As shown in [Fig. 5], with the exception of the first rightmost comb tooth 32A and the second leftmost comb tooth 32B, which form a V, the maximum pitch P between the other adjacent comb teeth 32 is greater than or equal to 1.5 mm and less than or equal to 3 mm. In some embodiments, the pitch is 1.5 mm, 1.8 mm, 2.3 mm, or 3 mm.

[0092] If the pitch P is greater than 3 mm, the sweeping element 21 and debris can easily pass between two adjacent comb teeth 32, which affects the cleaning effect of the sweeping element 21. If the pitch P is less than 1.5 mm, a large resistance can be generated against the rotation of the sweeping element 21, and the cleaning effect of the sweeping element 21 can also be affected.

[0093] In some embodiments, the width W of the widest part of the comb tooth 32 is greater than or equal to 1 mm and less than or equal to 2 mm, the length L of the comb tooth 32 is greater than or equal to 10 mm and less than or equal to 20 mm, the height H of the highest part of the comb tooth 32 is greater than or equal to 2.5 mm and less than or equal to 5 mm, and the height of the lowest part of the comb tooth 32 is greater than or equal to 1 mm and less than or equal to 2 mm.

[0094] As shown in [Fig. 5], the width W of the widest part of the comb tooth 32 is greater than or equal to 1 mm and less than or equal to 2 mm. In some embodiments, the width W of the widest part of the comb tooth 32 is 1 mm, 1.2 mm, 1.6 mm or 2 mm.

[0095] The length L of the comb tooth 32 is greater than or equal to 10 mm and less than or equal to 20 mm. In some embodiments, the length L of the comb tooth 32 is 10 mm, 15 mm, 18 mm or 20 mm.

[0096] The height H of the highest part of the comb tooth 32 is greater than or equal to 2.5 mm and less than or equal to 5 mm. In some embodiments, the height H of the highest part of the comb tooth 32 is 2.5 mm, 2.8 mm, 3.5 mm or 5 mm.

[0097] The height H of the lowest part of the comb tooth 32 is greater than or equal to 1 mm and less than or equal to 2 mm. In some embodiments, the height H of the lowest part of the comb tooth 32 is 1 mm, 1.5 mm, 1.8 mm or 2 mm.

[0098] If the width W, length L and height H of the comb tooth 32 are too large, the resistance may increase, which may affect the rotation of the sweeping element 21. If the width W, length L and height H of the comb are too small, the cleaning effect on the sweeping element 21 may be reduced.

[0099] In some embodiments, the cross-section of the receiving cavity 11 is arc-shaped, the dust collection orifice 12 is in the shape of a rounded rectangle or a rounded trapezoid, the diameter of the receiving cavity 11 is greater than or equal to 40 mm and less than or equal to 60 mm, the length of the dust collection orifice 12 is greater than or equal to 50 mm and less than or equal to 80 mm, and the width of the dust collection orifice 12 is greater than or equal to 15 mm and less than or equal to 25 mm.

[0100] As shown in Figures 3 and 4, in some embodiments, the cross-section of the receiving cavity 11 is semi-circular, and the diameter of the receiving cavity 11 is greater than or equal to 40 mm and less than or equal to 60 mm. In some cases, the diameter of the receiving cavity 11 is 40 mm, 45 mm, 47 mm, 50 mm, 52 mm, 55 mm, 58 mm or 60 mm.

[0101] The dust collection orifice 12 may be in the shape of a rounded rectangle or a rounded trapezoid. The length D of the dust collection orifice 12 in the left-to-right direction is greater than or equal to 50 mm and less than or equal to 80 mm. When the dust collection orifice 12 is in the shape of a rounded trapezoid, the length D of the dust collection orifice 12 varies, and the distance (length) between the first lateral edge 121 and the second lateral edge 122 of the dust collection orifice 12 is greater than or equal to 50 mm and less than or equal to 80 mm. In some embodiments, the length D of the dust collection orifice 12 decreases in the first direction towards the comb component 3; that is, the length of the first lateral edge 121 is less than the length of the second lateral edge 122.In some embodiments, the length of the first lateral edge 121 is 50 mm and the length of the second lateral edge 122 is 70 mm. In some cases, the length of the first lateral edge 121 is 60 mm and the length of the second lateral edge 122 is 80 mm.

[0102] Along the circumferential direction of the housing cavity 11, the width K of the dust collection orifice 12 is greater than or equal to 15 mm and less than or equal to 25 mm. In some cases, the width K of the dust collection orifice 12 is 15 mm, 18 mm, 22 mm or 25 mm.

[0103] The size of the receiving cavity 11 and the size of the dust collection orifice 12 are associated with each other, which improves the cleaning effect of the surface to be cleaned, the suction force of the dust collection orifice 12 and the dust removal effect.

[0104] In some embodiments, the cleaning component 2 comprises a rotating shaft 22, blocking discs 23, and a sweeping element 21. The blocking discs 23 are mounted respectively at a first and a second end of the rotating shaft 22. A barrier element is arranged on at least a portion of an outer peripheral surface of the blocking disc 23. The sweeping element 21 comprises at least one row of bristles. The row of bristles comprises a first segment 211 and a second segment 212. The first segment 211 and the second segment 212 extend spirally along a first axial direction of the rotating shaft 22. A spiral direction of the first segment 211 is opposite to a spiral direction of the second segment 212. A joint between the first segment 211 and the second segment 212 is located at the midpoint of the rotating shaft 22.The position of the dust collection port 12, the position of the mounting plate 31 and the articulation between the first segment 211 and the second segment 212 correspond to each other.

[0105] As shown in [Fig. 8], the cleaning component 2 comprises a rotating shaft 22, locking discs 23, and a sweeping element 21. The rotating shaft 22 extends in the left-to-right direction and is provided with a left end and a right end opposite each other in the left-to-right direction. The left end of the rotating shaft 22 is rotatably supported at the left end of the housing cavity 11, and the right end of the rotating shaft 22 is rotatably supported at the right end of the housing cavity 11. The left or right end of the rotating shaft 22 is connected by a pivot joint in the housing 1, and the drive may be, but is not limited to, a rotary motor.

[0106] The left and right ends of the rotating shaft 22 are provided with coaxial blocking discs 23, and all or part of the outer peripheral surfaces of the blocking discs 23 are provided with barrier elements. The barrier element may be, but is not limited to, flaps, and is configured to prevent cleaned debris from reaching between the left and right ends of the rotating shaft 22 and the housing 1.

[0107] There may be one, two, three or more rows of hairs. When there are more than one row of hairs, they are spaced apart from each other along the circumferential direction of the rotation shaft 22.

[0108] The row of hairs is divided into a first segment 211 and a second segment 212 in the left-right direction. The first segment 211 is located on the left side of the second segment 212. The first segment 211 and the second segment 212 extend spirally along the first direction of the rotation shaft 22. One spiral direction of the first segment 211 is opposite to a spiral direction of the second segment 212, so that the row of hairs is V-shaped. The articulation between the first segment 211 and the second segment 212 is located in the middle of the rotation shaft 22 along the left-right direction, and corresponds to a position of the dust collection orifice 12 and to a position of the mounting plate 31.

[0109] During the rotation of the cleaning component 2, the first segment 211 sweeps a first set of comb teeth and the second segment 212 sweeps a second set of comb teeth. The first segment 211 and the second segment 212, whose spiral directions are opposite, guide the cleaned debris towards the dust collection port 12, so that the debris is drawn into the dust collection port 12. In addition, debris such as hair cleaned by the comb is guided towards the dust collection port 12, which improves the cleaning effect.

[0110] In some embodiments, the row of bristles extends spirally around the axial direction of the rotating shaft 22. The first rotating end of the rotating shaft 22 is rotatably supported by the housing 1. The second rotating end of the rotating shaft 22 is suspended. The position of the dust collection port 12 and the position of the mounting plate 31 are adjacent to the second rotating end of the rotating shaft 22. More precisely, the position of the dust collection port 12 and the position of the mounting plate 31 are adjacent to the second rotating end of the rotating shaft 22. The row of bristles guides the cleaned debris towards the second rotating end of the rotating shaft 22, so as to draw it into the dust collection port 12 and improve the cleaning effect.

[0111] The first rotating end of the rotating shaft 22 is provided with a coaxial locking disc 23, and all or part of the outer peripheral surface of the locking disc 23 is provided with a barrier element. The barrier element may be, but is not limited to, flaps, and is configured to prevent cleaned debris from reaching between the first rotating end of the rotating shaft 22 and the housing 1.

[0112] It can be understood that the sweeping element is not limited to including the row of bristles. In other embodiments, the sweeping element may also include an adhesive strip. In some embodiments, the adhesive strip and the row of bristles are arranged side by side and parallel to each other.

[0113] In the description of this document, it should be understood that the orientation or position relationships indicated by the terms "central", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "upper", "lower", "interior", "exterior", "axial", "vertical", "horizontal", "upper", "lower", "interior", "exterior", "interior", "exterior", " "Axial," "radial," "circumferential," and similar terms are indicated based on the figures and are intended simply to describe the present invention and simplify the description, rather than to indicate or imply that the indicated device or element must have a specific orientation and be configured and used according to that specific orientation. These terms should not be interpreted as a limitation of the present invention.

[0114] Furthermore, the terms "first" and "second" are used here solely for the purpose of distinction and shall not be construed as indicating or implying relative importance or implicitly indicating the number of technical features described. Thus, the features defined by "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, unless otherwise clearly and specifically defined, the term "plurality" refers to at least two, e.g., two, three, or similar.

[0115] In the present invention, unless otherwise clearly specified and defined, the terms "mount," "interconnect," "connect," "fix," and the like shall be interpreted broadly. For example, the terms may refer to a fixed connection, a detachable connection, or an integration; a mechanical connection, or an electrical connection, or communication between them; a direct connection or an indirect connection via an intermediary; or internal communication between two elements or interaction between two elements, unless otherwise clearly defined. For those skilled in the art, the specific meanings of the above terms in the present invention may be understood under specific conditions.

[0116] In the present invention, unless otherwise clearly stated and defined, a first direction being "on" or "under" a second direction may include the first direction being in direct contact with the second direction, or the first direction being in indirect contact with the second direction via an intermediate support. Furthermore, a first feature being "on" and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply that the first feature is in a higher horizontal position than the second feature.A first feature being "under" and "below" a second feature can mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is in a horizontally lower position than the second feature.

[0117] In this document, the terms "an embodiment," "certain embodiments," "an example," "an example embodiment," "a specific example," "certain examples," and others mean that the specific features, structures, materials, or characteristics described with reference to the embodiments or examples are included in at least one embodiment or example of this document. In the specification, the schematic description of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined appropriately in one or more embodiments or examples.Furthermore, a person skilled in the art can combine and integrate different embodiments or examples described in this specification and the characteristics of the different embodiments or examples without contradicting each other.

[0118] Although embodiments of the present invention have been shown and described at the address above, it may be understood that the above embodiments are exemplary and may not be construed as limitations to the present invention. Persons skilled in the art may make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

Demands

1. Cleaning device, comprising: - a housing (1), the housing (1) being provided with a receiving cavity (11), the receiving cavity (11) including a dust collection inlet (12); - a cleaning component (2), the cleaning component (2) being arranged rotatably in the receiving cavity (11) around a central axis of the cleaning component (2), and the cleaning component (2) being provided with a sweeping element (21);and - a comb assembly (3), said comb assembly (3) comprising a mounting plate (31) and a plurality of comb teeth (32) configured to clean the sweeping element (21), the mounting plate (31) being removably mounted on a wall of the receiving cavity (11), the plurality of comb teeth (32) being arranged on the mounting plate (31) and arranged along an axial direction of the cleaning component (2), and an angle (a) between a comb tooth (32) and the axial direction of the cleaning component (2) being greater than or equal to 65 degrees and less than or equal to 85 degrees.;

2. Cleaning device according to claim 1, wherein the wall of the receiving cavity (11) is provided with a mounting groove (13), the wall of the receiving cavity (11) and the mounting groove (13) having an arc-shaped structure, the mounting plate (31) being an arc-shaped plate adapted to the wall of the receiving cavity (11) and to the mounting groove (13), and the mounting plate (31) being removably mounted in the mounting groove (13); and / or wherein the comb (32) and the mounting plate (31) are formed entirely by injection molding.

3. Cleaning device according to claim 2, wherein the mounting plate (31) is snapped into the mounting groove (13) by a snap-fit ​​structure.

4. A cleaning device according to any one of claims 1 to 3, wherein the mounting plate (31) is provided with a first lateral surface (311) and a second lateral surface (312) extending along the axial direction of the cleaning component (2), a comb tooth (32) being provided with a first end (321) and a second end (322), the first end (321)

5.

6. of said comb tooth (32) being adjacent to the first side surface (311) of the mounting plate (31), and the second end (322) of said comb tooth (32) being away from the first side surface (311) of the mounting plate (31), a surface of the first end (321) of said comb tooth (32) being flush with the first side surface (311) of the mounting plate (31), or a surface of the first end (321) of said less one comb tooth (32) extending outwards beyond the first side surface (311) of the mounting plate (31). Cleaning device according to claim 4, wherein the mounting plate (31) is arranged adjacent to the dust collection orifice (12), the first lateral surface (311) of the mounting plate (31) is adjacent to the dust collection orifice (12), the second lateral surface (312) of the mounting plate (31) is away from the dust collection orifice (12), the first end (321) of the comb tooth (32) is adjacent to the first lateral surface (311) of the mounting plate (31), the second end (322) of the comb tooth (32) is away from the first lateral surface (311) of the mounting plate (31), and in the axial direction of the cleaning component (2), the outermost comb tooth (32) is adjacent to a first end of the dust collection orifice (12),another outermost comb tooth (32) is adjacent to a second end of the dust collection orifice (12), and / or a distance between the first lateral surface (311) of the mounting plate (31) and a lateral edge of the dust collection orifice (12) adjacent to the mounting plate (31) is greater than zero and less than or equal to 10 millimeters. A cleaning device according to claim 4 or 5, wherein the mounting plate (31) has an arc-shaped structure, the plurality of comb teeth (32) comprising a first group of comb teeth and a second group of comb teeth, the first group of comb teeth and the second group of comb teeth being arranged on either side of a centerline of the mounting plate (31), respectively, the first group of comb teeth comprising a plurality of first comb teeth (32A) parallel to each other, the second group of comb teeth comprising a plurality of second comb teeth (32B) parallel to each other, a first end (321) of a first comb tooth (32A) being closer to the center line (B) of the mounting plate (31) than a second tooth end (322) of said first comb tooth (32A), and a first end (321) of a second comb tooth (32B) being closer to the center line of the mounting plate (31) than a second end (322) of said second comb tooth (32B).

7. Cleaning device according to claim 6, wherein a first end (321) of a first innermost comb tooth (32A) and a first end (321) of a second innermost comb tooth (32B) are connected to each other to form a V, and a distance (S) between a tip of the V-shaped and the first lateral surface (311) of the mounting plate (31) is between 1.5 millimeters and 3.5 millimeters.

8. A cleaning device according to claim 7, wherein the first group of comb teeth and the second group of comb teeth are symmetrical with respect to the central line of the V-shape

9. A cleaning device according to claim 6, wherein in a cross-section of the mounting plate (31) parallel to the axial direction of the cleaning component (2), the heights of the comb teeth (32) of the plurality of comb teeth gradually decrease from the centerline of the mounting plate (31) to two ends of the mounting plate (31), or the comb teeth (32) of the plurality of comb teeth comprise at least two different heights, and the comb teeth (32) of different heights are arranged alternately along the axial direction of the cleaning component (2); and / or wherein two lateral surfaces of a comb tooth (32) are parallel to each other and inclined with respect to the mounting plate (31), an upper edge of a lateral surface of said comb tooth (32) being further from the centerline than a lower edge of the lateral surface;and / or in which a pitch between adjacent comb teeth (32) increases progressively from the centerline of the mounting plate (31) towards both ends of the mounting plate (31), or at least two different pitches are determined between the; adjacent comb teeth (32), and the different pitches are defined alternately along the axial direction of the cleaning element (2).

10. Cleaning device according to any one of claims 1 to 9 depending on claim 4, wherein a height of a comb tooth (32) decreases from a first end (321) of said comb tooth (32) to a second end (322) of said comb tooth (32), or a height of a first end (321) of said comb tooth (32) is greater than a height of a remaining part of said comb tooth (32); and / or in which a height of a first end (321) of a comb tooth (32) is greater than a height of a second end (322) of said comb tooth (32), and / or the first ends (321) of the teeth of the plurality of comb teeth (32) comprise at least two different heights, and the second ends (322) of the teeth of the plurality of comb teeth (32) comprise at least two different heights;and / or wherein the width of a first end (321) of a comb tooth (32) is less than the width of a remaining portion of said comb tooth (32), and an upper surface of a comb tooth (32) forms an arc-shaped transition with a surface of a second end (322) of said comb tooth (32) and two lateral surfaces of said comb tooth (32) respectively.;

11. Cleaning device according to claim 9, wherein a maximum pitch between adjacent comb teeth (32) is greater than or equal to 1.5 millimeters and less than or equal to 3 millimeters.

12. A cleaning device according to any one of claims 1 to 11, wherein the width of the widest part of a comb tooth (32) is greater than or equal to 1 millimeter and less than or equal to 2 millimeters, the length (L) of a comb tooth (32) is greater than or equal to 10 millimeters and less than or equal to 20 millimeters, the height of the highest part of a comb tooth (32) is greater than or equal to 2.5 millimeters and less than or equal to 5 millimeters, and the height of the lowest part of a comb tooth (32) is greater than or equal to 1 millimeter and less than or equal to 2 millimeters; and / or the cross-section of the receiving cavity (11) is arc-shaped, the dust collection orifice (12) being rectangular.

13. rounded or a rounded trapezoid, a diameter of the receiving cavity (11) being greater than or equal to 40 millimeters and less than or equal to 60 millimeters, a length of the dust collection orifice (12) being greater than or equal to 50 millimeters and less than or equal to 80 millimeters, and a width of the dust collection orifice (12) being greater than or equal to 15 millimeters and less than or equal to 25 millimeters. A cleaning device according to any one of claims 1 to 12, wherein the cleaning component (2) further comprises a rotating shaft (22) and locking discs (23), the locking discs (23) being mounted at a first rotating end and a second rotating end of the rotating shaft (22) respectively, a barrier element being arranged on at least a portion of an outer peripheral surface of the locking disc (23), the sweeping element (21) comprising at least one row of bristles, the row of bristles comprising a first segment (211) and a second segment (212), the first segment (211) and the second segment (212) extending spirally around an axial direction of the rotating shaft (22), a spiral direction of the first segment (211) being opposite to a spiral direction of the second segment (212), a joint between the first segment (211) and the second segment (212) being located in a midpoint of the rotating shaft (22),and a position of the dust collection port (12), a position of the mounting plate (31), and the articulation between the first segment (211) and the second segment (212) corresponding to each other; or, in which the cleaning component (2) further comprises a rotating shaft (22) and a locking disc (23), a first rotating end of the rotating shaft (22) being rotatably supported on the housing (1), a second rotating end of the rotating shaft (22) being suspended, the locking disc (23) being mounted to the first rotating end of the rotating shaft (22), a barrier element being arranged on at least a portion of an outer peripheral surface of the locking disc (23), the sweeping element (21) comprising at least one row of bristles, the row of bristles extending spirally around an axial direction of the rotating shaft (22), and a position of the dust collection orifice (12) and a position of the mounting plate (31) being adjacent to the second rotating end of the rotation shaft (22).

Images