Vacuum nozzle and vacuum cleaner assembly

Abstract

This utility model discloses a vacuum nozzle and a vacuum cleaner assembly, relating to the field of cleaning equipment technology. The vacuum nozzle includes a nozzle body and a cleaning component. The nozzle body has a suction chamber with a suction port for a cleaning brush to extend into. The suction chamber connects to the interior of the vacuum cleaner device. The cleaning component is located in the suction chamber and configured to scrape against the cleaning brush to clean debris from the brush. In this embodiment, the cleaning brush can extend into the suction chamber through the suction port. The suction chamber is equipped with the cleaning component, which scrapes against the cleaning brush to dislodge accumulated debris. During this process, the suction chamber is connected to the vacuum cleaner device, creating a negative pressure area within the suction chamber, thereby drawing the dislodged debris into the vacuum cleaner device and cleaning the cleaning brush.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and in particular to a vacuum nozzle and a vacuum cleaner assembly including the vacuum nozzle. Background Technology

[0002] In the lithium battery manufacturing process, the produced electrode rolls need to be die-cut to cut the foil at both ends of the roll into shapes that meet the process requirements, or to cut it off directly. After die-cutting, the surface of the electrode roll is cleaned with a brush to remove the cut debris. The brush is generally designed in a cylindrical shape and is adapted to the motor shaft to meet the cleaning needs of high-speed continuous production.

[0003] In related technologies, when cylindrical brushes clean rolled debris, debris tends to accumulate inside, requiring the use of industrial vacuum cleaners to remove it. However, vacuum cleaners cannot easily reach inside the brushes, making it difficult to clean them thoroughly and resulting in weak cleaning effects. Utility Model Content

[0004] In view of the above problems, the present invention provides a vacuum nozzle that can improve the cleaning effect on the cleaning brush by the relative scraping between the cleaning component and the cleaning brush.

[0005] In a first aspect, according to an embodiment of this application, the suction nozzle is used to dock with a vacuuming device. The suction nozzle includes a nozzle body and a cleaning component. The nozzle body has a suction chamber with a suction port for a cleaning brush to extend into. The suction chamber is used to communicate with the vacuuming device. The cleaning component is disposed in the suction chamber and configured to scrape against the cleaning brush to clean debris on the cleaning brush.

[0006] According to the vacuum nozzle of this application embodiment, the cleaning brush can be inserted into the suction chamber through the suction port. The suction chamber is provided with a cleaning component, and the cleaning component and the cleaning brush can scrape against each other to knock off the debris accumulated on the cleaning brush. During this process, the suction chamber is connected to the vacuuming device to create a negative pressure area in the suction chamber, thereby sucking the knocked-off debris into the vacuuming device to clean the cleaning brush.

[0007] The cleaning brush can be driven by a motor to rotate, thus achieving relative scraping with the cleaning components; alternatively, the cleaning components can be driven by a motor to move relative to the cleaning brush, achieving relative scraping with the cleaning brush.

[0008] In some embodiments, the suction chamber has a first chamber wall and a second chamber wall opposite each other along a first direction, the first direction being perpendicular to the axial direction of the cleaning brush; The cleaning assembly includes at least one scraper, with its two ends connected to a first cavity wall and a second cavity wall, respectively.

[0009] In the above embodiments, the scraper can scrape against the cleaning brush, improving the cleaning effect on the cleaning brush and allowing the cleaning brush to rotate smoothly, reducing the wear of the cleaning brush.

[0010] In some embodiments, the orthographic projection of the scraper is wavy in a projection plane perpendicular to the second direction, wherein the second direction, the first direction, and the axial direction are perpendicular to each other.

[0011] In the above embodiments, the cleaning brush can be scraped repeatedly to further improve the cleaning effect of the cleaning brush.

[0012] In some embodiments, the scraper includes a plurality of scrapers, which are spaced apart along the axial direction, and a meandering sweeping channel is formed between adjacent scrapers.

[0013] In the above embodiments, the cleaning brush can be scraped from multiple directions, further improving the cleaning effect on the cleaning brush.

[0014] In some embodiments, in a projection plane perpendicular to the second direction, the orthographic projection of the scraper is in the shape of multiple folded plates, with the second direction, the first direction, and the axial direction being perpendicular to each other.

[0015] In the above embodiments, the cleaning brush can be scraped repeatedly to further improve the cleaning effect of the cleaning brush.

[0016] In some embodiments, the suction chamber has a third chamber wall and a fourth chamber wall opposite to each other along the axial direction, and at least one of the third chamber wall and the fourth chamber wall has a clearance notch at one end near the suction port.

[0017] In the above embodiments, the portion of the cleaning brush that extends into the suction chamber can be increased, thereby improving the cleaning effect on the cleaning brush.

[0018] In some embodiments, the clearance notch is constructed to be arc-shaped.

[0019] In the above embodiments, the portion of the cleaning brush that extends into the suction chamber is further increased, thereby further improving the cleaning effect of the cleaning brush.

[0020] In some embodiments, the cleaning component does not extend beyond the suction port in the axial direction along the suction port.

[0021] In the above embodiments, debris can be trapped in the suction chamber, making it easier to clean the debris.

[0022] In some embodiments, the suction nozzle further includes an adapter tube and an extension tube. The nozzle body has a sleeve tube, the interior of which communicates with the suction chamber. One end of the extension tube is connected to the adapter tube, and the other end is sleeved with the sleeve tube.

[0023] In the above embodiments, the vacuum nozzle and vacuuming device can be quickly disassembled and assembled, improving cleaning efficiency.

[0024] In some embodiments, one of the adapter tube and the extension tube is provided with a first buckle and the other is provided with a first slot, the first buckle and the first slot engaging; and / or, one of the extension tube and the sleeve tube is provided with a second buckle and the other is provided with a second slot, the second buckle and the second slot engaging. In the above embodiments, the connection strength of the adapter pipe and extension pipe, and the extension pipe and sleeve pipe can be improved, which facilitates cleaning operations.

[0025] In some embodiments, the cross-sectional shape of the adapter pipe is rectangular; In the above embodiments, the adapter tube can be configured to be long and flat to facilitate the insertion of the suction nozzle into the device.

[0026] In some embodiments, the sleeve has a rectangular cross-sectional shape.

[0027] In the above embodiments, the sleeve can be constructed to be long and flat, making it easy for the suction nozzle to extend into the device.

[0028] In a second aspect, according to the embodiments of this application, the vacuum cleaner assembly includes the vacuum nozzle and vacuuming device as described in the above embodiments, wherein the vacuuming device is connected to the vacuum nozzle.

[0029] Other features and advantages disclosed in this application will be set forth in the following description, or some features and advantages may be inferred from the description or determined without doubt, or may be learned by practicing the above-described technology disclosed in this application.

[0030] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0031] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic diagram of a vacuum nozzle in some embodiments of this application.

[0032] Figure 2 yes Figure 1 An exploded view of the suction nozzle in the embodiment.

[0033] Figure 3 yes Figure 1 The embodiment shows a bottom view of the nozzle body, cleaning components, and sleeve.

[0034] The reference numerals in the detailed embodiments are as follows: Vacuum nozzle 100, nozzle body 10, suction chamber 11, suction port 12, first clearance notch 13, second clearance notch 14, cleaning component 20, scraper 21, sweeping brush channel 22, sleeve tube 30, first buckle 31, extension tube 40, first slot 41, second buckle 42, adapter tube 50, second slot 51, first direction AA, axis direction of cleaning brush BB, second direction CC. Detailed Implementation

[0035] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0036] In the lithium battery manufacturing process, the produced electrode rolls need to be die-cut to cut the foil at both ends of the roll into shapes that meet the process requirements, or to cut it off directly. After die-cutting, the surface of the electrode roll is cleaned with a brush to remove the cut debris. The brush is generally designed in a cylindrical shape and is adapted to the motor shaft to meet the cleaning needs of high-speed continuous production.

[0037] In related technologies, when cylindrical brushes clean rolled debris, debris tends to accumulate inside, requiring the use of industrial vacuum cleaners to remove it. However, vacuum cleaners cannot easily reach inside the brushes, making it difficult to clean them thoroughly and resulting in weak cleaning effects.

[0038] Therefore, this utility model provides a vacuum nozzle that can improve the cleaning effect on the cleaning brush by the relative scraping between the cleaning component and the cleaning brush.

[0039] like Figures 1 to 3 According to the embodiments of this application, the vacuum nozzle 100 is used to dock with a vacuuming device, and the vacuum nozzle 100 includes a nozzle body 10 and a cleaning component 20.

[0040] The nozzle body 10 has a suction chamber 11, which has a suction port 12 for the cleaning brush to extend into. The suction chamber 11 is used to communicate with the vacuuming device. The cleaning component 20 is located in the suction chamber 11 and is configured to scrape against the cleaning brush to clean the debris on the cleaning brush and improve the cleaning effect on the cleaning brush.

[0041] Specifically, the cleaning principle of the vacuum nozzle 100: The cleaning brush can be inserted into the suction chamber 11 through the suction port 12. The suction chamber 11 is equipped with a cleaning component 20. The cleaning component 20 and the cleaning brush can scrape against each other to knock off the debris accumulated on the cleaning brush. During this process, the suction chamber 11 is connected to the vacuuming device to create a negative pressure area in the suction chamber 11, thereby sucking the knocked-off debris into the vacuuming device to clean the cleaning brush.

[0042] The cleaning brush can be driven by a motor to rotate and achieve relative scraping with the cleaning component 20; of course, the cleaning component 20 can also be driven by a motor to move relative to the cleaning brush and achieve relative scraping with the cleaning brush.

[0043] For ease of understanding, unless otherwise specified, the following embodiments will be described in conjunction with an example of a cleaning brush driven by a motor.

[0044] In some embodiments of this application, the suction chamber 11 has a first chamber wall and a second chamber wall opposite to each other along a first direction, the first direction being perpendicular to the axis of the cleaning brush; the cleaning assembly 20 includes at least one scraper 21, with its two ends connected to the first chamber wall and the second chamber wall, respectively. Thus, the scraper 21 can scrape against the cleaning brush, improving the cleaning effect on the cleaning brush.

[0045] For example, during the operation of the vacuum nozzle 100, the cleaning brush can rotate and scrape against the scraper 21 in the suction chamber 11 along the first direction, thereby knocking off the debris accumulated inside the cleaning brush. The knocked-off debris can be sucked into the vacuuming device by the suction chamber 11 to clean the cleaning brush.

[0046] like Figures 1 to 3 In some embodiments of this application, the orthographic projection of the scraper 21 is wavy in a projection plane perpendicular to the second direction, with the second direction, the first direction, and the axial direction being perpendicular to each other; thus, the cleaning brush can be scraped repeatedly, further improving the cleaning effect on the cleaning brush.

[0047] Understandably, the scraper 21 can be constructed in a wave shape extending along the first direction. Thus, the scraper 21 can have multiple first scraping surfaces opposite to the cleaning brush. When the cleaning brush rotates, it passes through these multiple first scraping surfaces to further improve the cleaning effect on the cleaning brush. Furthermore, the first scraping surfaces can also guide the cleaning brush to deflect, reducing wear on the brush. Moreover, the wave-shaped scraper 21 can still achieve the cleaning purpose when the cleaning brush rotates forward or backward, offering high convenience.

[0048] like Figure 1 and Figure 3In some embodiments of this application, the scraper 21 includes a plurality of scrapers 21, which are spaced apart along the axial direction of the cleaning brush, and a meandering brush channel 22 is formed between two adjacent scrapers 21; thus, the cleaning brush can be scraped from multiple directions, further improving the cleaning effect on the cleaning brush.

[0049] Specifically, during the cleaning process of the sweeping brush, the bristles of the sweeping brush can extend into the sweeping channel 22. The bristles rotate with the sweeping brush to pass through the sweeping channel 22. During this process, one of the two adjacent scrapers 21 can scrape against the bristles from one side to knock off the debris on the sweeping brush, and the other of the two adjacent scrapers 21 can scrape against the bristles from the other side to knock off the debris on the sweeping brush. In short, a meandering sweeping channel 22 can be constructed between the two adjacent scrapers 21. In this way, with the cooperation of the two adjacent scrapers 21, the bristles can be scraped in multiple directions to greatly improve the cleaning effect of the sweeping brush.

[0050] The meandering brush channel 22 can be understood as a serpentine brush channel 22.

[0051] In addition, in some other embodiments, the scraper 21 includes a plurality of scrapers 21 arranged at intervals along the axial direction of the cleaning brush, and a brush channel 22 is formed between two adjacent scrapers 21. The brush channel 22 has a plurality of expanding structures and a plurality of contracting structures, which are arranged alternately to scrape the cleaning brush in multiple directions, greatly improving the cleaning effect on the cleaning brush.

[0052] The cleaning principle of the sweeping brushes in the sweeping channel 22 is the same as that described above, and will not be repeated here.

[0053] In this embodiment, the brush channel 22, which has multiple expanding structures and multiple contracting structures, can be understood as having a beaded shape.

[0054] In some embodiments of this application, the orthographic projection of the scraper 21 in the projection plane perpendicular to the second direction is in the shape of multiple folded plates, with the second direction, the first direction and the axial direction perpendicular to each other; in this way, the cleaning brush can be scraped repeatedly, further improving the cleaning effect on the cleaning brush.

[0055] Understandably, the scraper 21 can be constructed as a multi-segmented folded plate extending along the first direction. Thus, the scraper 21 can have multiple second scraping surfaces opposite to the cleaning brush. When the cleaning brush rotates, it passes through these multiple second scraping surfaces to further improve the cleaning effect on the cleaning brush. Furthermore, the second scraping surfaces can guide the cleaning brush to deflect, reducing wear on the brush. Moreover, the multi-segmented folded scraper 21 can still achieve the cleaning purpose when the cleaning brush rotates forward or backward, offering high convenience.

[0056] like Figures 1 to 3 In some embodiments of this application, the suction chamber 11 has a third chamber wall and a fourth chamber wall opposite to each other along the axial direction, and at least one of the third chamber wall and the fourth chamber wall has a clearance notch at one end near the suction port 12; this arrangement can increase the portion of the cleaning brush that extends into the suction chamber 11, thereby improving the cleaning effect on the cleaning brush.

[0057] For example, the first cavity wall has a first clearance notch 13 and the second cavity wall has a second clearance notch 14. The first clearance notch 13 and the second clearance notch 14 are opposite to each other along the axial direction of the cleaning brush. The axial direction of the cleaning brush can be understood as the extension direction of the rotation axis. Therefore, the first clearance notch 13 and the second clearance notch 14 can accommodate the drive shaft of the cleaning brush, so that the cleaning brush can extend further into the suction cavity 11, thereby improving the cleaning effect of the cleaning brush.

[0058] like Figure 1 and Figure 2 In some embodiments of this application, the shape of the clearance notch is constructed as an arc to further increase the portion of the cleaning brush that extends into the suction chamber 11, thereby further improving the cleaning effect on the cleaning brush.

[0059] It is understandable that the drive shaft of the cleaning brush is cylindrical or rotates. Therefore, in order to fit the drive shaft, the shape of the clearance notch can be made into an arc shape. The clearance notch fits the drive shaft better, making it easier for the cleaning brush to extend into the suction chamber 11, thereby increasing the scraping area between the cleaning brush and the cleaning component 20 and improving the cleaning effect on the cleaning brush.

[0060] like Figure 1 In some embodiments of this application, the cleaning component 20 does not extend out of the suction port 12 along the axial direction of the suction port 12; in this way, debris can be trapped in the suction chamber 11, which facilitates the cleaning of debris.

[0061] For example, the suction nozzle body 10 includes a first plate, a second plate, a third plate, and a fourth plate. The first and second plates are tangentially opposite each other along the rotation direction of the cleaning brush, and the third and fourth plates are opposite each other along the axis of the cleaning brush. The first plate connects the third and fourth plates, and the second plate connects the third and fourth plates to form a suction chamber 11. One side edge of the first, second, third, and fourth plates forms a suction port 12. A first clearance notch 13 can be formed on the third plate, and a second clearance notch 14 can be formed on the fourth plate. A scraper 21 connects the first and second plates, and the scraper 21 does not extend relative to the first and second plates along the axis of the suction port 12, so that debris can be trapped in the suction chamber 11, which facilitates the cleaning of debris.

[0062] Specifically, during the cleaning process, the debris generated by the brush and scraper 21 can be trapped by the first and second plates. Conversely, if the scraper 21 extends beyond the first and second plates along the axis of the suction port 12, the debris is more likely to be ejected from the suction chamber 11, affecting the cleaning effect of the nozzle 100 on the brush. Therefore, the cleaning component 20 does not extend beyond the suction port 12 along the axis of the suction port 12.

[0063] like Figures 1 to 3 In some embodiments of this application, the vacuum nozzle 100 further includes an adapter tube 50 and an extension tube 40. The nozzle body 10 has a sleeve tube 30. One end of the extension tube 40 is sleeved with the adapter tube 50, and the other end is sleeved with the sleeve tube 30. This facilitates the quick assembly and disassembly of the vacuum nozzle 100 and the vacuuming device, thereby improving cleaning efficiency.

[0064] Before cleaning the brush, in order to quickly assemble the suction nozzle 100 with the vacuuming device, an adapter 50 can be provided, and the nozzle body 10 has a sleeve 30. One end of the adapter 50 can be connected to the interface of the vacuuming device, and the other end can be sleeved with the extension tube 40. The extension tube 40 can be sleeved with the sleeve 30, thereby assembling the suction nozzle 100 with the vacuuming device. When the vacuuming device is started, negative pressure can be created in the suction chamber 11 to suck up the debris on the brush and improve cleaning efficiency.

[0065] The extension tube 40 can increase the cleaning range of the vacuum nozzle 100, making it easier for the vacuum nozzle 100 to reach in and clean the cleaning brush, thus improving cleaning efficiency.

[0066] For example, this application is mainly used to clean the cleaning brush used to clean electrode debris during the lithium battery manufacturing process. Since the cleaning brush is installed inside the lithium battery manufacturing equipment and is not easy to remove for cleaning, it is necessary to extend the suction nozzle 100 out of the equipment to clean the cleaning brush inside the equipment. To achieve this purpose, this embodiment provides an extension tube 40, which is connected to the adapter tube 50 and the sleeve tube 30 respectively, so that the suction body of the suction nozzle 100 can extend into the equipment to clean the cleaning brush without disassembling the cleaning brush, thereby improving cleaning efficiency.

[0067] like Figure 2 In some embodiments of this application, one of the adapter pipe 50 and the extension pipe 40 is provided with a first buckle 31 and the other is provided with a first slot 41, and the first buckle 31 and the first slot 41 are engaged; in this way, the connection strength between the adapter pipe 50 and the extension pipe 40 can be improved, which facilitates the cleaning operation.

[0068] For example, the extension tube 40 is provided with a plurality of first slots 41, which are arranged along the periphery of the extension tube 40, and the adapter tube 50 is provided with a plurality of first buckles 31, which are arranged along the periphery of the adapter tube 50. During assembly, the extension tube 40 and the adapter tube 50 are sleeved together, and the plurality of first buckles 31 are engaged with the plurality of first slots 41 in a one-to-one manner to improve the connection strength between the adapter tube 50 and the extension tube 40 and facilitate stable cleaning operations. During disassembly, the first buckles 31 can be disengaged from the first slots 41 by deformation of the extension tube 40 and / or the adapter tube 50, thereby achieving disassembly.

[0069] like Figure 2 In some embodiments of this application, one of the adapter pipe 50 and the extension pipe 40 is provided with a second buckle 42, and the other is provided with a second slot 51. The second buckle 42 and the second slot 51 are engaged in a snap-fit ​​manner. In this way, the connection strength between the adapter pipe 50 and the extension pipe 40 can be improved, which facilitates the cleaning operation.

[0070] For example, the extension tube 40 is provided with a plurality of second snap fasteners 42, which are arranged along the periphery of the extension tube 40, and the adapter tube 50 is provided with a plurality of second slots 51, which are arranged along the periphery of the adapter tube 50. During assembly, the extension tube 40 and the adapter tube 50 are sleeved together, and the plurality of second snap fasteners 42 and the plurality of second slots 51 are engaged one-to-one to improve the connection strength between the adapter tube 50 and the extension tube 40 and facilitate stable cleaning operations. During disassembly, the second snap fasteners 42 can be disengaged from the second slots 51 by deformation of the extension tube 40 and / or the adapter tube 50, thus achieving disassembly.

[0071] In light of the foregoing, in order to facilitate the insertion of the vacuum nozzle 100 into the equipment for manufacturing lithium batteries, the structures of the adapter pipe 50, sleeve pipe 30, and extension pipe 40 need to be modified.

[0072] like Figures 1 to 3 In some embodiments of this application, the cross-sectional shape of the adapter pipe 50 is rectangular; thus, the shape of the adapter pipe 50 can be constructed as long and flat, which facilitates the insertion of the suction nozzle 100 into the device.

[0073] like Figures 1 to 3 In some other embodiments of this application, the cross-sectional shape of the sleeve 30 is rectangular; thus, the sleeve 30 can be constructed to be elongated and flat, which facilitates the suction nozzle 100 to extend into the device.

[0074] like Figures 1 to 3 In some other embodiments of this application, the cross-sectional shape of the extension tube 40 is rectangular; thus, the cross-sectional shape of the extension tube 40 is long and flat, which facilitates the insertion of the suction nozzle 100 into the device.

[0075] According to the embodiments of this application, the vacuum cleaner assembly includes a vacuum nozzle 100 and a vacuuming device as described in the above embodiments, with the vacuuming device connected to the vacuum nozzle 100. By applying the vacuum nozzle 100 of the aforementioned embodiments, the vacuum cleaner assembly can achieve good cleaning effect and efficiency for cleaning brushes, thereby improving the manufacturing efficiency of lithium batteries and increasing production.

[0076] In this application, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or a point connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0077] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0078] In all embodiments of this application, "large" and "small" are relative terms, "more" and "less" are relative terms, and "upper" and "lower" are relative terms. The embodiments of this application will not elaborate further on the expression of such relative terms.

[0079] It should be understood that the phrases "in this embodiment," "in this application embodiment," or "as an optional implementation" throughout the specification mean that a specific feature, structure, or characteristic related to an embodiment is included in at least one embodiment of this application. Therefore, the phrases "in this embodiment," "in this application embodiment," or "as an optional implementation" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Those skilled in the art should also understand that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily essential to this application.

[0080] In the various embodiments of this application, it should be understood that the sequence number of each process does not necessarily imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0081] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of protection of the claims.

Claims

1. A vacuum nozzle, said vacuum nozzle being used to connect with a vacuuming device, characterized in that, include: The nozzle body (10) has a suction chamber (11) with a suction port (12) for the cleaning brush to extend into, and the suction chamber (11) is used to communicate with the vacuuming device. A cleaning component (20) is disposed in the suction chamber (11) and configured to scrape against the cleaning brush to clean debris on the cleaning brush.

2. The vacuum nozzle according to claim 1, characterized in that, The suction chamber (11) has a first chamber wall and a second chamber wall opposite each other along a first direction, the first direction being perpendicular to the axial direction of the cleaning brush; The cleaning assembly (20) includes at least one scraper (21), the two ends of which are respectively connected to the first cavity wall and the second cavity wall.

3. The vacuum nozzle according to claim 2, characterized in that, In the projection plane perpendicular to the second direction, the orthographic projection of the scraper (21) is wavy, and the second direction, the first direction and the axial direction are perpendicular to each other.

4. The vacuum nozzle according to claim 3, characterized in that, The scraper (21) includes a plurality of scrapers, which are spaced apart along the axial direction, and a meandering sweeping channel (22) is formed between two adjacent scrapers (21).

5. The vacuum nozzle according to claim 2, characterized in that, In the projection plane perpendicular to the second direction, the orthographic projection of the scraper (21) is in the shape of multiple folded plates, with the second direction, the first direction and the axial direction being perpendicular to each other.

6. The vacuum nozzle according to any one of claims 1-4, characterized in that, The suction chamber (11) has a third chamber wall and a fourth chamber wall opposite each other along the axial direction of the cleaning brush, and at least one of the third chamber wall and the fourth chamber wall has a clearance notch at one end near the suction port (12).

7. The vacuum nozzle according to claim 6, characterized in that, The shape of the clearance notch is arc-shaped.

8. The vacuum nozzle according to any one of claims 1-4, characterized in that, The cleaning component (20) does not extend beyond the suction port (12) along the axial direction of the suction port (12).

9. The vacuum nozzle according to any one of claims 1-4, characterized in that, It also includes a converter tube (50) and an extension tube (40). The suction nozzle body (10) has a sleeve tube (30). The inside of the sleeve tube (30) is connected to the suction chamber (11). One end of the extension tube (40) is sleeved with the converter tube (50), and the other end is sleeved with the sleeve tube (30).

10. The vacuum nozzle according to claim 9, characterized in that, One of the adapter tube (50) and the extension tube (40) is provided with a first buckle (31), and the other is provided with a first slot (41). The first buckle (31) and the first slot (41) are engaged in a snap-fit ​​relationship. And / or, one of the extension tube (40) and the sleeve tube (30) is provided with a second buckle (42) and the other is provided with a second slot (51), and the second buckle (42) and the second slot (51) are engaged.

11. The vacuum nozzle according to claim 9, characterized in that, The cross-sectional shape of the adapter pipe (50) is rectangular; And / or, the cross-sectional shape of the sleeve (30) is rectangular.

12. A vacuum cleaner assembly, characterized in that, include: The vacuum nozzle according to any one of claims 1-11; A vacuuming device, wherein the vacuuming device is connected to the vacuum nozzle.

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