Middle sweeping assembly and cleaning equipment

Abstract

The utility model discloses a middle sweeping assembly and cleaning equipment, the cleaning equipment comprises the middle sweeping assembly, the middle sweeping assembly comprises an outer shell, a cleaning part and a flexible comb tooth part, a mounting groove is formed in the outer shell, the cleaning part is rotatably mounted in the mounting groove, and the flexible comb tooth part is arranged on the inner wall face of the mounting groove; and the flexible comb tooth part is at least used for scraping garbage on the cleaning part. According to the middle sweeping assembly and the cleaning equipment, the problem that in the prior art, the contact noise of a rolling brush and comb teeth is too large is solved.

Description

Technical Field

[0001] This application relates to the field of floor cleaning technology, and more specifically, to a sweeping component and cleaning equipment. Background Technology

[0002] Cleaning equipment includes robotic vacuum cleaners, vacuum cleaners, and multi-functional cleaning base stations. Most cleaning equipment is often equipped with a central cleaning component, which is used to clean up external debris and collect it into the cleaning equipment.

[0003] Typically, the brush unit is equipped with a roller brush and comb teeth. The comb teeth are used to scrape off hair or dust from the roller brush. However, in the existing technology, the noise is too loud when the roller brush and comb teeth come into contact, resulting in a poor user experience. Utility Model Content

[0004] The main objective of this application is to provide a mid-sweeping component and cleaning device to at least solve the problem of excessive noise from the contact between the roller brush and the comb teeth in the prior art.

[0005] According to one aspect of this application, a mid-scan component is provided, comprising:

[0006] The outer casing has a mounting groove.

[0007] A cleaning component, which is rotatably mounted in the mounting slot;

[0008] A flexible comb tooth portion is disposed on the inner wall surface of the mounting groove, and the flexible comb tooth portion is used at least to scrape off the debris on the cleaning component.

[0009] Furthermore, the flexible comb portion includes a support member and a plurality of flexible teeth. The support member is fixed to the inner wall surface of the mounting groove, and the plurality of flexible teeth are spaced apart on the support member along a first direction.

[0010] Furthermore, the width of the flexible tooth gradually decreases along the direction from the root to the tip of the flexible tooth.

[0011] Furthermore, each of the flexible teeth is inclined along the first direction; or, each of the flexible teeth is inclined in a direction opposite to the first direction.

[0012] Furthermore, along the first direction, the flexible tooth is provided with a first inclined surface, an arc-shaped surface and a second inclined surface in sequence on the side near the cleaning component. The first inclined surface is inclined in the direction near the arc-shaped surface, the second inclined surface is inclined in the direction near the arc-shaped surface, and the width of the flexible tooth gradually decreases along the direction near the cleaning component.

[0013] Wherein, when each of the flexible teeth is inclined along the first direction, the area of ​​the first inclined surface is greater than the area of ​​the second inclined surface;

[0014] When each of the flexible teeth is inclined in a direction opposite to the first direction, the area of ​​the first inclined surface is smaller than the area of ​​the second inclined surface.

[0015] Furthermore, the intermediate cleaning assembly also includes a rigid reinforcing part and a fixing member. The rigid reinforcing part is disposed on the side of the support member near the cleaning component, and the support member is fixed between the rigid reinforcing part and the inner wall surface of the mounting groove by the fixing member.

[0016] Furthermore, the side of the rigid reinforcing part near the cleaning component is configured as a convex arc surface, and the convex arc surface protrudes in a direction away from the cleaning component.

[0017] Furthermore, the outer shell is provided with a first clearance hole, and the flexible comb tooth is provided with a second clearance hole that is adapted to the first clearance hole;

[0018] The rigid reinforcing part is provided with a connecting protrusion, and a connecting hole is opened in the middle of the connecting protrusion. The connecting protrusion passes through the second clearance hole and is located in the first clearance hole. The fastener passes through the first clearance hole and is connected in the connecting hole.

[0019] Furthermore, the flexible comb teeth include at least one of thermoplastic polyurethane comb teeth, thermoplastic rubber comb teeth, polyolefin elastomer comb teeth, and silicone comb teeth.

[0020] On the other hand, this application also provides a cleaning device that includes the aforementioned intermediate cleaning component.

[0021] Compared to existing technologies, the sweeping component of this application uses flexible comb teeth to scrape away debris on the cleaning components. The debris can be hair or dust, etc. Because the flexible comb teeth have a certain degree of flexibility, when the cleaning components come into contact with the flexible comb teeth, the contact between the two is flexible, thereby avoiding the generation of large noise when the cleaning components come into contact with the flexible comb teeth, thus reducing the amount of noise generated by the cleaning equipment when cleaning the floor, and thus improving the user experience. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0023] Figure 1 This is a schematic diagram of the structure of the cleaning equipment disclosed in this application;

[0024] Figure 2 This is a schematic diagram of the scanning component disclosed in this application from a first-view perspective.

[0025] Figure 3 This is a schematic diagram of the mid-scanning component disclosed in this application from a second-view perspective.

[0026] Figure 4 This is an exploded structural diagram of the intermediate scanning assembly disclosed in this application;

[0027] Figure 5 This is a schematic diagram of the structure of the first shell disclosed in this application;

[0028] Figure 6 This is a schematic diagram of the assembly structure of the second shell, flexible comb teeth, and rigid reinforcement disclosed in this application;

[0029] Figure 7 This is a schematic diagram of the assembly structure of the second housing and the flexible comb teeth disclosed in this application;

[0030] Figure 8 for Figure 7 A schematic diagram of the enlarged structure of region I;

[0031] Figure 9 This is a schematic diagram of the rigid reinforcement disclosed in this application from a third-person perspective.

[0032] Figure 10 This is a schematic diagram of the rigid reinforcement disclosed in this application from a fourth-person perspective.

[0033] The above figures include the following reference numerals:

[0034] 1. Mid-sweep assembly; 10. Outer shell; 11. First shell; 12. Second shell; 20. Cleaning component; 30. Flexible comb teeth; 31. Flexible teeth; 32. Support; 40. Rigid reinforcement; 41. Convex arc surface; 42. Connecting protrusion; 101. Mounting groove; 111. Clearance opening; 112. Positioning protrusion; 113. First clearance hole; 121. Suction port; 122. Positioning groove; 311. First inclined surface; 312. Arc surface; 313. Second inclined surface; 321. Second clearance hole; 421. Connecting hole. Detailed Implementation

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0037] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0038] As described in the background section, cleaning equipment typically includes a central sweeping component 1, which contains a roller brush and comb teeth. In the prior art, most comb teeth are made of metal or plastic, which results in a hard contact between the roller brush and the comb teeth. This causes excessive noise generated by the comb teeth when scraping away debris from the roller brush, thus affecting the user experience.

[0039] See Figures 1 to 10 As shown, according to an embodiment of this application, a cleaning device is provided. The cleaning device can be a sweeping robot, a vacuum cleaner, or a multi-functional cleaning base station. The cleaning device includes a central sweeping component 1, wherein the central sweeping component 1 includes a housing 10, a cleaning component 20, and a flexible comb tooth portion 30. The housing 10 has an installation groove 101, the cleaning component 20 is rotatably installed in the installation groove 101, and the flexible comb tooth portion 30 is disposed on the inner wall surface of the installation groove 101. The flexible comb tooth portion 30 is at least used to scrape off the debris on the cleaning component 20.

[0040] In this embodiment, the cleaning component 20 can be a roller brush, a roller, or a mop. When the cleaning component 20 rotates, it interferes with the flexible comb teeth 30, and the debris on the cleaning component 20 is scraped off under the action of the flexible comb teeth 30.

[0041] Compared to existing technologies, the sweeping component 1 in this embodiment uses a flexible comb tooth 30 to scrape away debris on the cleaning component 20. The debris can be hair or dust, etc. Since the flexible comb tooth 30 has a certain degree of flexibility, when the cleaning component 20 comes into contact with the flexible comb tooth 30, the contact between the two is a flexible contact, thereby avoiding the generation of large noise when the cleaning component 20 comes into contact with the flexible comb tooth 30, thus reducing the amount of noise generated by the cleaning equipment when cleaning the floor, and thus improving the user experience.

[0042] Furthermore, the flexible comb portion 30 includes a support member 32 and a plurality of flexible teeth 31. The support member 32 is fixed to the inner wall surface of the mounting groove 101, and the plurality of flexible teeth 31 are arranged along a first direction (as shown in the attached figure). Figure 7 The intervals in the X direction are set on the support member 32.

[0043] Specifically, when the cleaning component 20 rotates, multiple flexible teeth 31 come into contact with it. Under the action of friction, the flexible teeth 31 scrape away dust or hair from the cleaning component 20, thus preventing excessive dust or hair from adhering to it and reducing its cleaning ability. In this embodiment, the support member 32 is a support plate extending along a first direction, and the cleaning component 20 is a roller brush also extending along the first direction. The extension length of the support plate is greater than or equal to the extension length of the roller brush, so that the flexible teeth 31 on the support plate can evenly scrape away debris from the roller brush.

[0044] In order to facilitate the flexible teeth 31 to better scrape off the hair wrapped around the cleaning component 20, in this embodiment, the width of the flexible teeth 31 gradually decreases along the direction from the root to the tip of the teeth.

[0045] In other words, the width of the tips of the flexible teeth 31 is relatively small, which makes it easier for the tips of the flexible teeth 31 to remove hair from the cleaning component 20. At the same time, since the width of the flexible teeth 31 gradually decreases from the root to the tip, this means that the bottom of the tooth valley formed between two adjacent flexible teeth 31 is set in a V-shape. When the bottom of the tooth valley comes into contact with the cleaning component 20, it is also easier to remove hair from the cleaning component 20.

[0046] In some embodiments, each flexible tooth 31 is inclined along a first direction. In other embodiments, each flexible tooth 31 is inclined in a direction opposite to the first direction.

[0047] It is understandable that when each flexible tooth 31 is tilted along the first direction, or when each flexible tooth 31 is tilted in the opposite direction to the first direction, after the flexible teeth 31 scrape the hair off the cleaning component 20, the hair will move along the first direction or in the opposite direction due to the action of the flexible teeth 31, thereby preventing the hair from accumulating in the middle of the multiple flexible teeth 31 after the flexible teeth 31 scrape the hair.

[0048] Furthermore, a dust suction port 121 is provided on the outer casing 10, which is connected to the mounting groove 101, and the flexible comb teeth 30 are provided on the inner wall surface of the mounting groove 101 corresponding to the dust suction port 121.

[0049] Specifically, when the cleaning component 1 is working, the exhaust fan on the cleaning equipment draws air into the suction port 121, creating negative pressure in the suction port 121, which continuously draws the airflow from the mounting groove 101 away through the suction port 121. When the flexible comb teeth 30 scrapes away the debris on the cleaning component 20, the debris is subjected to negative pressure suction and is thus drawn away through the suction port 121, thereby preventing debris from accumulating in the flexible comb teeth 30 or the mounting groove 101. Simultaneously, in some embodiments, when each flexible tooth 31 is inclined along the first direction, or each flexible tooth 31 is inclined along the opposite direction, after the flexible teeth 31 scrape away the debris on the cleaning component 20, the debris moves along the first direction or the opposite direction under the guidance of the flexible teeth 31, while also being adsorbed by the suction port 121, causing the debris to be adsorbed and flow out of the suction port 121, thereby preventing debris from accumulating at one end of the support member 32 along the first direction or the other end along the opposite direction.

[0050] Furthermore, as shown in the appendix Figure 8 As shown, along the first direction, the flexible tooth 31 has a first inclined surface 311, an arc-shaped surface 312, and a second inclined surface 313 sequentially arranged on the side near the cleaning component 20. The first inclined surface 311 is inclined along the direction near the arc-shaped surface 312, and the second inclined surface 313 is inclined along the direction near the arc-shaped surface 312. Along the direction of the flexible tooth 31 near the cleaning component 20, the width of the flexible tooth 31 gradually decreases. When all the flexible teeth 31 are inclined along the first direction, the area of ​​the first inclined surface 311 is greater than the area of ​​the second inclined surface 313. When all the flexible teeth 31 are inclined along the opposite direction to the first direction, the area of ​​the first inclined surface 311 is smaller than the area of ​​the second inclined surface 313.

[0051] Specifically, when all flexible teeth 31 are inclined along the first direction, the area of ​​the first inclined surface 311 is larger than the area of ​​the second inclined surface 313. In this case, the larger first inclined surface 311 increases the contact area with the cleaning component 20, while the smaller second inclined surface 313 reduces the contact area between the second inclined surface 313 and the cleaning component 20. This allows the flexible teeth 31 to scrape away debris from the cleaning component 20, and the debris can move along the direction of the first inclined surface 311 towards the arc-shaped surface 312, meaning the debris can move along the first direction. In other words, the first inclined surface 311 acts as a guide. Conversely, when all flexible teeth 31 are inclined in the opposite direction to the first direction, the area of ​​the first inclined surface 311 is smaller than the area of ​​the second inclined surface 313. In this case, the contact area between the second inclined surface 313 and the cleaning component 20 is larger, and the second inclined surface 313 acts as a guide surface. This allows the debris scraped away by the flexible teeth 31 to move along the direction of the second inclined surface 313 towards the arc-shaped surface 312, ultimately causing the debris to move in the opposite direction to the first direction. In addition, the flexible teeth 31 are also provided with an arc-shaped surface 312. The design of the arc-shaped surface 312 makes the friction between the cleaning component 20 and the arc-shaped surface 312 relatively close at all points when they come into contact. This avoids excessive local friction between the cleaning component 20 and the arc-shaped surface 312, which could cause the cleaning component 20 or the arc-shaped surface 312 to be scratched. At the same time, it also avoids excessive local friction, which could make it difficult for the flexible teeth 31 to scrape off the debris on the cleaning component 20.

[0052] In some embodiments, the intermediate cleaning assembly 1 further includes a rigid reinforcing part 40 and a fixing member. The rigid reinforcing part 40 is disposed on the side of the support member 32 near the cleaning component 20. The support member 32 is fixed between the rigid reinforcing part 40 and the inner wall surface of the mounting groove 101 by the fixing member.

[0053] It is understandable that in some embodiments, both the support member 32 and the multiple flexible teeth 31 are made of flexible materials, and the support member 32 and the flexible teeth 31 are integrally formed. This makes it difficult to fix the support member 32 to the inner wall of the mounting groove 101. Therefore, in this embodiment, a rigid reinforcing part 40 and a fixing member are needed to fix the support member 32. Typically, the fixing member is a bolt. If the flexible support member 32 is fixed between bolts, the bolts may loosen when the support member 32 deforms, thus failing to fix the support member 32 properly. Of course, in some other embodiments, the support member 32 can be made of a rigid material, and the support member 32 and the flexible teeth 31 can be separate components. In this embodiment, the rigid reinforcing part 40 can be a rigid plate.

[0054] Furthermore, the side of the rigid reinforcement 40 near the cleaning component 20 is provided with a convex arc surface 41, and the convex arc surface 41 protrudes in a direction away from the cleaning component 20. Specifically, the convex arc surface 41 is provided to avoid excessive friction between the cleaning component 20 and the rigid reinforcement 40, which could lead to damage to the cleaning component 20 or the rigid reinforcement 40. In some embodiments, the convex arc surface 41 is a smooth convex arc surface with a low coefficient of friction.

[0055] In addition, the outer shell 10 includes a first shell 11 and a second shell 12. The first shell 11 has an opening 111 for clearance, and the second shell 12 has a suction port 121. The second shell 12 has a positioning groove 122, and the first shell 11 has a positioning protrusion 112 that is adapted to the positioning groove 122. The positioning protrusion 112 passes through the positioning groove 122, so that the first shell 11 and the second shell 12 surround and form an installation groove 101.

[0056] Specifically, in this embodiment, after the positioning protrusion 112 passes through the positioning groove 122, it needs to be fixed to the positioning groove 122 by a gluing process, thereby improving the sealing of the connection between the first housing 11 and the second housing 12 and preventing dust or impurities from entering the positioning groove 122. In addition, the clearance opening 111 on the first housing 11 is used to avoid the cleaning component 20, so that the cleaning component 20 can contact the ground and clean the ground.

[0057] Furthermore, the outer shell 10 is provided with a first clearance hole 113, and the flexible comb tooth part 30 is provided with a second clearance hole 321 that is adapted to the first clearance hole 113; the rigid reinforcing part 40 is provided with a connecting protrusion 42, and a connecting hole 421 is provided in the middle of the connecting protrusion 42. The connecting protrusion 42 passes through the second clearance hole 321 and is located in the first clearance hole 113. The fixing member passes through the first clearance hole 113 and is connected in the connecting hole 421.

[0058] In this embodiment, the second clearance hole 321 serves as a limiting device to limit the connecting protrusion 42 between the first clearance hole 113 and the second clearance hole 321. In some embodiments, the fastener includes a bolt, one end of which passes through the first clearance hole 113 and then into the connecting hole 421 on the connecting protrusion 42, thereby fixing the support member 32 between the rigid reinforcing part 40 and the outer shell 10. Furthermore, in this embodiment, there are multiple connecting protrusions 42, which are spaced apart on the support member 32 along a first direction. There are also multiple first clearance holes 113, second clearance holes 321, and fasteners. Each connecting protrusion 42, each first clearance hole 113, each second clearance hole 321, and each fastener is arranged in a one-to-one correspondence, thereby improving the fixing effect on the support member 32.

[0059] Furthermore, the flexible comb teeth 30 include at least one of thermoplastic polyurethane comb teeth, thermoplastic rubber comb teeth, polyolefin elastomer comb teeth, and silicone comb teeth.

[0060] Specifically, thermoplastic polyurethane comb teeth, thermoplastic rubber comb teeth, polyolefin elastomer comb teeth, and silicone comb teeth have good elasticity and flexibility, which can reduce the noise generated when the cleaning component 20 comes into contact with the comb teeth to a certain extent. At the same time, thermoplastic polyurethane comb teeth, thermoplastic rubber comb teeth, polyolefin elastomer comb teeth, and silicone comb teeth also have certain high temperature resistance, which can prevent the comb teeth from deforming due to excessive temperature after long-term contact with the cleaning component 20, thereby improving the service life of the cleaning equipment to a certain extent.

[0061] In summary, in the mid-sweeping component 1 and cleaning device of this application, the mid-sweeping component 1 includes a flexible comb tooth portion 30. When the flexible comb tooth portion 30 scrapes away debris from the cleaning component 20, the noise generated by the contact between the flexible comb tooth portion 30 and the cleaning component 20 is relatively low because the cleaning component 20 and the flexible comb tooth portion 30 are in flexible contact. Furthermore, in this application, the flexible comb tooth portion 30 includes flexible teeth 31 and a support member 32. The support member 32 is connected to the inner wall of the mounting groove 101. Multiple flexible teeth 31 are spaced apart on the support member 32 along a first direction to facilitate uniform scraping of the cleaning component 20 by the multiple flexible teeth 31. On the other hand, each flexible tooth 31 is inclined along the first direction, or each flexible tooth 31 is inclined in the opposite direction to the first direction, so that the debris scraped by the flexible teeth 31 can move along the inclined direction of each flexible tooth 31, avoiding the accumulation of scraped debris in the middle of the multiple flexible teeth 31. In addition, the mid-scan assembly 1 of this application also includes a fixing member and a rigid reinforcement 40, so that the support member 32 can be better fixed on the inner wall surface of the mounting groove 101.

[0062] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0063] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0064] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A center sweep assembly, comprising: The utility model provides a cleaning device, including: An outer casing (10) is provided with a mounting groove (101); A cleaning component (20) is rotatably mounted in the mounting groove (101); A flexible comb section (30) is arranged on the inner wall surface of the mounting groove (101), and the flexible comb section (30) is used for at least scraping off garbage on the cleaning component (20).

2. The center sweep assembly of claim 1, wherein, The flexible comb section (30) comprises a support (32) and a plurality of flexible teeth (31), the support (32) is fixed on the inner wall surface of the mounting groove (101), and the plurality of flexible teeth (31) are arranged on the support (32) in a first direction.

3. The center sweep assembly of claim 2, wherein, The width of the flexible tooth (31) gradually decreases from the root to the tip of the tooth.

4. The center sweep assembly of claim 2, wherein, Each flexible tooth (31) is inclined in the first direction, or each flexible tooth (31) is inclined in the direction opposite to the first direction.

5. The center sweep assembly of claim 4, wherein, In the first direction, the side of the flexible tooth (31) close to the cleaning component (20) is sequentially provided with a first inclined surface (311), an arc surface (312) and a second inclined surface (313), the first inclined surface (311) is inclined in the direction close to the arc surface (312), the second inclined surface (313) is inclined in the direction close to the arc surface (312), and the width of the flexible tooth (31) gradually decreases in the direction close to the cleaning component (20). When each flexible tooth (31) is inclined in the first direction, the area of the first inclined surface (311) is greater than the area of the second inclined surface (313). When each flexible tooth (31) is inclined in the direction opposite to the first direction, the area of the first inclined surface (311) is less than the area of the second inclined surface (313).

6. The middle scan assembly of any of claims 2-5, wherein, The middle sweeping assembly further comprises a hard reinforcing part (40) and a fixing member, the hard reinforcing part (40) is arranged on the side of the support (32) close to the cleaning component (20), and the support (32) is fixed between the hard reinforcing part (40) and the inner wall surface of the mounting groove (101) through the fixing member.

7. The center sweep assembly of claim 6, wherein, One side of the hard reinforcing part (40) close to the cleaning component (20) is provided with a convex arc surface (41), and the convex arc surface (41) is convex in the direction away from the cleaning component (20).

8. The center scan assembly of claim 6, wherein, The outer casing (10) is provided with a first avoiding hole (113), and the flexible comb section (30) is provided with a second avoiding hole (321) matched with the first avoiding hole (113); The hard reinforcing part (40) is provided with a connecting convexity (42), the connecting convexity (42) is provided with a connecting hole (421) in the middle, the connecting convexity (42) passes through the second avoiding hole (321) and is located in the first avoiding hole (113), and the fixing member passes through the first avoiding hole (113) and is connected in the connecting hole (421).

9. The middle scan assembly of any of claims 1-5, wherein, The flexible comb portion (30) includes at least one of thermoplastic polyurethane comb teeth, thermoplastic rubber comb teeth, polyolefin elastomer comb teeth, and silicone comb teeth.

10. A cleaning apparatus, characterized by The cleaning apparatus includes the sweeping assembly of any one of claims 1 to 9.

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