Cleaning floor brush and vacuum cleaner

Abstract

A cleaning floor brush and a vacuum cleaner. The cleaning floor brush (100) comprises: a housing (110), the housing (110) being provided with an operating chamber (111); a first roller brush (120) rotatably arranged within the operating chamber (111); a second roller brush (130) arranged in the radial direction of the first roller brush (120), the second roller brush (130) being located on at least one side of the first roller brush (120); and a roller assembly (140) rotatably arranged on the housing (110) and connected to the second roller brush (130), at least a portion of the roller assembly (140) being exposed to the operating chamber (111) and used for coming into contact with a surface to be cleaned. As the friction force generated by the contact between the roller assembly (140) and the surface to be cleaned drives the second roller brush (130) to rotate, there is no need to provide a drive mechanism for driving the second roller brush (130) to rotate, so as to simplify the structure of the cleaning floor brush (100) and reduce a load on a motor, thus ensuring cleaning effects in different environments while reducing the production cost of the cleaning floor brush (100) and improving the reliability of the cleaning floor brush (100).

Description

Cleaning brushes and vacuum cleaners

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on February 19, 2024, with application number "202420305971.6" and application name "Cleaning Floor Brush and Vacuum Cleaner", the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of floor brushes, and in particular to a cleaning floor brush and a vacuum cleaner. Background Art

[0003] At present, vacuum cleaners usually use electric floor brushes, which are conducive to capturing debris and particles on the ground into the suction pipe. In order to cope with the two different scenarios of floor and carpet cleaning, different types of roller brushes are set for cleaning. Specifically, soft velvet roller brushes are usually used to clean floors, and bristle or leather roller brushes are used to clean carpets. However, users are generally required to manually replace two different types of roller brushes according to different cleaning surfaces, which is a cumbersome operation.

[0004] Conventional floor brushes feature dual rollers to accommodate different cleaning surfaces. However, the addition of a second roller increases the transmission mechanism, increasing the load on the motor and making the structure more complex. Furthermore, the additional roller can easily become entangled with debris such as hair during rotation, requiring regular manual cleaning, which is cumbersome.

[0005] Summary of the Invention

[0006] The embodiments of the present application are intended to solve at least one of the technical problems existing in the prior art.

[0007] To this end, a first aspect of an embodiment of the present application provides a cleaning brush.

[0008] A second aspect of the embodiments of the present application provides a vacuum cleaner.

[0009] In view of this, according to the first aspect of an embodiment of the present application, a cleaning floor brush is provided, which includes: a shell, the shell being provided with a working chamber; a first roller brush, rotatably disposed in the working chamber; a second roller brush, radially along the first roller brush, the second roller brush being located on at least one side of the first roller brush; a roller assembly, rotatably disposed in the shell and connected to the second roller brush, at least a portion of the roller assembly being exposed in the working chamber for contacting the surface to be cleaned.

[0010] The cleaning brush provided in the embodiment of the present application includes a housing, a first roller brush, a second roller brush, and a roller assembly. Specifically, the housing is provided with a working chamber. Optionally, the housing is further provided with a suction port, which is connected to the working chamber. The suction pipe of the vacuum cleaner is connected to the suction port. When the fan assembly of the vacuum cleaner is in an operating state, a suction airflow can be generated. Under the action of the suction airflow, the working chamber, the suction port, and the suction pipe capture debris on the surface to be cleaned and collect them into the collection chamber of the vacuum cleaner, thereby achieving dust removal on the surface to be cleaned.

[0011] The surfaces to be cleaned include floors, carpets and other surfaces that need to be cleaned.

[0012] The first roller brush is rotatably arranged in the working chamber. Optionally, the cleaning brush further includes a motor, which is connected to the first roller brush, so that the first roller brush can rotate in the working chamber under the drive of the motor, that is, the first roller brush is an electric floor brush.

[0013] The second roller brush is located on at least one radial side of the first roller brush. Specifically, along the radial direction of the first roller brush, the first roller brush includes a first side and a second side that are opposite to each other, and the second roller brush is located on the first side of the first roller brush. Alternatively, the second roller brush is located on the second side of the first roller brush. Alternatively, there are two second roller brushes, and the two second roller brushes are located on the first side and the second side of the first roller brush, respectively. It is understood that, along the direction of movement of the cleaning brush across the surface to be cleaned, the first side is the front side, and the second side is the rear side. That is, the second roller brush is located on the front side and / or the rear side of the first roller brush. The specific arrangement can be based on actual needs.

[0014] Since the first roller brush and the second roller brush are provided, it can adapt to different surfaces to be cleaned, ensuring the dust removal effect without the user having to manually replace different types of roller brushes according to the usage scenario, thereby improving the user experience of the cleaning floor brush.

[0015] The roller assembly is connected to the second roller brush, and at least a portion of the roller assembly is exposed outside the working chamber, and the portion of the roller assembly exposed outside the working chamber can contact the surface to be cleaned. As a result, under the action of the friction force generated by the contact between the roller assembly and the surface to be cleaned, the roller assembly rotates on the surface to be cleaned, thereby driving the second roller brush to rotate.

[0016] Since the friction force generated by the contact between the roller assembly and the surface to be cleaned drives the second roller brush to rotate, there is no need to set up a transmission mechanism to drive the second roller brush to rotate, which simplifies the structure of the cleaning floor brush and reduces the load on the motor. This can ensure the cleaning effect in different scenarios while reducing the production cost of the cleaning floor brush and improving the reliability of the cleaning floor brush.

[0017] In addition, since the roller assembly rotates by utilizing the friction generated by the contact between the roller assembly and the surface to be cleaned, the rotation speed of the second roller brush is relatively low, so that hair and other debris on the surface to be cleaned are sucked away by the negative pressure before they have time to wrap around the second roller brush. That is, hair and other debris are not easily entangled on the second roller brush, which effectively improves the anti-entanglement ability of the second roller brush. There is no need to manually clean the second roller brush regularly, further improving the user experience of the cleaning brush.

[0018] In addition, the cleaning brush provided according to the above technical solution of this application also has the following additional technical features:

[0019] In some technical solutions, optionally, the roller assembly includes a first roller and a second roller, and the first roller and the second roller are respectively located at two ends of the second roller brush in the axial direction and are respectively connected to the second roller brush.

[0020] In this technical solution, it is defined that the roller assembly includes a first roller and a second roller. Specifically, along the axial direction of the second roller brush, the first roller and the second roller are respectively located at the two ends of the second roller brush, and the first roller and the second roller are respectively connected to the second roller brush. That is to say, the first roller and the second roller drive the second roller brush to rotate at the same time, ensuring that the second roller brush can roll hair and other debris on the surface to be cleaned into the working chamber during the rotation process, thereby ensuring the dust removal effect of the cleaning brush.

[0021] It can be understood that a portion of the first roller and a portion of the second roller are respectively exposed outside the working chamber, that is, part of the first roller and part of the second roller are in contact with the surface to be cleaned, so that under the action of the friction force generated by the contact between the first roller and the second roller and the surface to be cleaned respectively, the first roller and the second roller respectively rotate on the surface to be cleaned, thereby driving the second roller brush to rotate.

[0022] There is no need to set up a transmission mechanism to drive the second roller brush to rotate, which simplifies the structure of the cleaning brush and reduces the load on the motor. This can ensure the cleaning effect in different scenes while reducing the production cost of the cleaning brush and improving the reliability of the cleaning brush.

[0023] Moreover, the rotation speed of the second roller brush is relatively low, so that hair and other debris on the surface to be cleaned are sucked away by the negative pressure before they have time to entangle on the second roller brush. That is, hair and other debris are not easily entangled on the second roller brush, effectively improving the anti-entanglement ability of the second roller brush.

[0024] In some technical solutions, optionally, the first roller, the second roller and the second roller brush are coaxially arranged.

[0025] In this technical solution, the first roller, the second roller and the second roller brush are coaxially arranged, thereby ensuring that the second roller brush can rotate under the drive of the first roller and the second roller, and further ensuring that the second roller brush can roll hair and other debris on the surface to be cleaned into the working chamber during the rotation process, thereby ensuring the dust removal effect of the cleaning brush.

[0026] It can be understood that, since the first roller, the second roller and the second roller brush are coaxially arranged, the rotational speeds of the first roller, the second roller and the second roller brush are consistent.

[0027] In some technical solutions, optionally, a friction structure is provided on the outer peripheral surface of at least one of the first roller and the second roller.

[0028] This technical solution provides for a friction structure to be provided on the outer circumference of at least one of the first and second rollers. Specifically, the outer circumference of the first roller is provided with a friction structure. Alternatively, the outer circumference of the second roller is provided with a friction structure. Alternatively, the outer circumference of the first roller and the outer circumference of the second roller are both provided with a friction structure. The specific configuration can be determined based on actual needs.

[0029] It can be understood that the friction structure is exposed in the working cavity, that is, the friction structure can contact the surface to be cleaned, thereby significantly improving the friction between the first roller and / or the second roller with the friction structure and the surface to be cleaned, preventing the first roller and / or the second roller from slipping on the surface to be cleaned, and facilitating the first roller and / or the second roller to rotate on the surface to be cleaned, thereby driving the second roller brush to rotate, and ensuring the dust removal effect of the cleaning brush in different cleaning scenarios.

[0030] In some technical solutions, optionally, the friction structure includes a protrusion, and at least a portion of the protrusion extends along the circumference of the first roller and / or the second roller.

[0031] This technical solution provides that the friction structure includes protrusions. Specifically, when the protrusions are provided on the outer wall of the first roller, the protrusions extend along the circumference of the first roller. When the protrusions are provided on the outer wall of the second roller, the protrusions extend along the circumference of the second roller. When both the outer walls of the first roller and the second roller are provided with protrusions, the protrusions on the first roller extend along the circumference of the first roller, and the protrusions on the second roller extend along the circumference of the second roller.

[0032] The protrusions can contact the surface to be cleaned, thereby significantly improving the friction between the first roller and / or the second roller having the protrusions and the surface to be cleaned, preventing the first roller and / or the second roller from slipping on the surface to be cleaned, and facilitating the first roller and / or the second roller to rotate on the surface to be cleaned.

[0033] In some technical solutions, optionally, at least one of the first roller and the second roller includes a hub and a protective member, wherein the hub is connected to the second roller brush, the protective member is arranged on the outside of the hub, and the outer wall of the protective member is provided with a friction structure.

[0034] In this technical solution, it is specified that at least one of the first roller and the second roller includes a hub and a protective member. Specifically, the first roller includes the hub and the protective member. Alternatively, the second roller includes the hub and the protective member. Alternatively, the first roller and the second roller each include a hub and a protective member. The specific configuration can be adjusted based on actual needs.

[0035] The wheel hub is connected to the second roller brush, and the protective member is arranged on the outside of the wheel hub, that is, the wheel hub is wrapped inside by the protective member to protect the wheel hub, which can effectively reduce the wear of the wheel hub and thus extend the service life of the first roller and / or the second roller with the protective member.

[0036] The outer wall of the protective part is provided with a friction structure. Since the friction structure is exposed in the working cavity, that is, the friction structure can contact the surface to be cleaned, the friction between the first roller and / or the second roller with the friction structure and the surface to be cleaned can be significantly improved, preventing the first roller and / or the second roller from slipping on the surface to be cleaned, which is conducive to the first roller and / or the second roller to rotate on the surface to be cleaned, thereby driving the second roller brush to rotate, ensuring the dust removal effect of the cleaning brush in different cleaning scenarios.

[0037] In some technical solutions, optionally, the protective member includes a wear-resistant member.

[0038] In this technical solution, it is defined that the protective member includes a wear-resistant member, so that the service life of the protective member can be extended while protecting the wheel hub.

[0039] Optionally, the protective member includes rubber, silicone or the like.

[0040] In some technical solutions, optionally, the second roller brush includes a brush body and a connecting shaft, wherein the brush body is provided with an axis hole, and the connecting shaft passes through the axis hole and is connected to the roller assembly.

[0041] In this technical solution, it is defined that the second roller brush includes a brush body and a connecting shaft. Specifically, the brush body is provided with an axis hole, the connecting shaft is passed through the axis hole, and the connecting shaft is connected to the roller assembly, that is, the roller assembly drives the brush body to rotate through the connecting shaft.

[0042] It can be understood that there is no relative rotation between the connecting shaft and the brush body, so that the connecting shaft can drive the brush body to rotate.

[0043] In some technical solutions, optionally, the first roller brush is provided with multiple first brushes; the second roller brush also includes multiple second brushes, and the multiple second brushes are provided on the outer wall of the brush body; wherein, the hardness of at least one second brush is less than the hardness of each first brush.

[0044] In this technical solution, it is defined that the second roller brush further includes a plurality of second brushes, specifically, the plurality of second brushes are arranged on the outer wall of the brush body. The first roller brush is provided with a plurality of first brushes.

[0045] Specifically, the hardness of at least one second brush is less than that of each first brush. In other words, the second brush on the second roller brush is relatively soft, while the first brush on the first roller brush is relatively hard. This allows the first and second roller brushes to adapt to different cleaning scenarios, ensuring effective cleaning. This eliminates the need for users to manually switch between different roller brushes depending on the specific application, improving the user experience of the floor brush.

[0046] Optionally, the hardness of each second brush is smaller than the hardness of each first brush.

[0047] In some technical solutions, optionally, the cleaning floor brush also includes a connecting tube, which is provided in the shell and connected to the working chamber; wherein, the shell is also provided with an opening, which is located on the side of the shell away from the connecting tube and connected to the working chamber, and the second roller brush is provided at the opening.

[0048] This technical solution specifies that the cleaning brush also includes a communication tube. Specifically, the communication tube is disposed on the housing and communicates with the working chamber. It is understood that, along the direction of movement of the cleaning brush across the surface to be cleaned, i.e., as the cleaning brush pushes forward or pulls back across the surface to be cleaned, the communication tube is located on the rear side of the housing.

[0049] The shell is further provided with an opening. Specifically, the opening is located on the side of the shell away from the connecting pipe, that is, the opening is located on the front side of the shell, that is, the opening is a front end opening, and the opening is connected to the working chamber.

[0050] The second roller brush is positioned at the opening. On the one hand, as the second roller brush rotates relative to the housing, it can draw hair, other fabrics, and larger particles of debris from the surface being cleaned into the working chamber. These particles are then sucked into the collection chamber of the vacuum cleaner through the suction port and connecting tube, improving the cleaning effect. On the other hand, positioning the second roller brush at the opening improves the sealing of the working chamber when the cleaning brush is in operation, enhancing the suction power of the vacuum cleaner and, consequently, the dust removal efficiency of the vacuum cleaner.

[0051] Compared with the related art of manually adjusting the opening size according to the size of the debris particles, the operation process of cleaning the floor brush can be significantly simplified, further improving the user experience.

[0052] In some technical solutions, optionally, the first roller brush is a bristle roller brush; and / or the second roller brush is a soft velvet roller brush.

[0053] In this technical solution, the first roller brush is a bristle roller brush, and the second roller brush is a soft velvet roller brush. This allows the first and second roller brushes to adapt to different types of surfaces to be cleaned, ensuring a good cleaning effect. This eliminates the need for users to manually change different roller brushes depending on the usage scenario, improving the user experience of the floor brush.

[0054] In addition, the second roller brush is a soft velvet roller brush, which contacts the surface to be cleaned, can improve the sealing of the working chamber, enhance the suction force of the vacuum cleaner, and thereby improve the dust removal efficiency of the vacuum cleaner.

[0055] According to the second aspect of the present application, a vacuum cleaner is provided, comprising a cleaning brush as provided by any of the above technical solutions, and thus possessing all the beneficial technical effects of the cleaning brush, which will not be described in detail here.

[0056] Additional aspects and advantages of the present application will be given in the following description, and in part will become apparent from the following description, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0058] FIG1 shows a schematic structural diagram of a cleaning brush according to an embodiment of the present application;

[0059] FIG2 shows an exploded view of a cleaning brush according to one embodiment of the present application;

[0060] FIG3 shows a schematic structural diagram of a second roller brush according to an embodiment of the present application.

[0061] The corresponding relationship between the reference numerals and component names in Figures 1 to 3 is as follows:

[0062] 100 cleaning floor brush, 110 shell, 111 working chamber, 112 opening, 120 first roller brush, 121 first brush, 130 second roller brush, 131 brush body, 132 connecting shaft, 133 second brush, 134 shaft hole, 140 roller assembly, 141 first roller, 142 second roller, 150 friction structure, 160 wheel hub, 170 protective member, 180 connecting pipe. DETAILED DESCRIPTION

[0063] In order to more clearly understand the above-mentioned objects, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other in the absence of conflict.

[0064] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0065] The cleaning brush 100 and the vacuum cleaner provided according to some embodiments of the present application are described below with reference to FIG. 1 to FIG. 3 .

[0066] In one embodiment of the present application, as shown in Figures 1, 2 and 3, a cleaning floor brush 100 is proposed, which includes: a shell 110, which is provided with a working chamber 111; a first roller brush 120, which is rotatably disposed in the working chamber 111; a second roller brush 130, which is located on at least one side of the first roller brush 120 along the radial direction of the first roller brush 120; a roller assembly 140, which is rotatably disposed in the shell 110 and connected to the second roller brush 130, and at least a portion of the roller assembly 140 is exposed in the working chamber 111 for contacting the surface to be cleaned.

[0067] The cleaning brush 100 provided in the embodiment of the present application includes a housing 110, a first roller brush 120, a second roller brush 130 and a roller assembly 140. Specifically, the housing 110 is provided with a working chamber 111. Optionally, the housing 110 is further provided with a suction port, which is connected to the working chamber 111. The suction pipeline of the vacuum cleaner is connected to the suction port. When the fan assembly of the vacuum cleaner is in a working state, a suction airflow can be generated. Under the action of the suction airflow, the working chamber 111, the suction port and the suction pipeline capture the debris on the surface to be cleaned and the like into the collection chamber of the vacuum cleaner, thereby achieving dust removal on the surface to be cleaned.

[0068] The surfaces to be cleaned include floors, carpets and other surfaces that need to be cleaned.

[0069] The first roller brush 120 is rotatably disposed in the working chamber 111. Optionally, the cleaning brush 100 further includes a motor connected to the first roller brush 120, so that the first roller brush 120 can rotate in the working chamber 111 under the drive of the motor, that is, the first roller brush 120 is an electric floor brush.

[0070] The second roller brush 130 is located on at least one radial side of the first roller brush 120. Specifically, along the radial direction of the first roller brush 120, the first roller brush 120 includes a first side and a second side that are opposite to each other, and the second roller brush 130 is located on the first side of the first roller brush 120. Alternatively, the second roller brush 130 is located on the second side of the first roller brush 120. Alternatively, there are two second roller brushes 130, each of which is located on the first side and the second side of the first roller brush 120, respectively. It is understood that, along the direction of movement of the cleaning brush 100 across the surface to be cleaned, the first side is the front side, and the second side is the rear side. That is, the second roller brush 130 is located on the front side and / or the rear side of the first roller brush 120. The specific arrangement can be based on actual needs.

[0071] Due to the provision of the first roller brush 120 and the second roller brush 130 , it can adapt to different surfaces to be cleaned, ensuring the dust removal effect while eliminating the need for the user to manually replace different types of roller brushes according to usage scenarios, thereby improving the user experience of the cleaning floor brush 100.

[0072] The roller assembly 140 is connected to the second roller brush 130, and at least a portion of the roller assembly 140 is exposed to the working chamber 111, and the portion of the roller assembly 140 exposed to the working chamber 111 can contact the surface to be cleaned, so that under the action of the friction force generated by the contact between the roller assembly 140 and the surface to be cleaned, the roller assembly 140 rotates on the surface to be cleaned, thereby driving the second roller brush 130 to rotate.

[0073] Since the friction force generated by the contact between the roller assembly 140 and the surface to be cleaned drives the second roller brush 130 to rotate, there is no need to set up a transmission mechanism to drive the second roller brush 130 to rotate, which simplifies the structure of the cleaning floor brush 100 and reduces the load of the motor. This can ensure the cleaning effect in different scenarios while reducing the production cost of the cleaning floor brush 100 and improving the reliability of the cleaning floor brush 100.

[0074] In addition, since the roller assembly 140 rotates by utilizing the friction force generated by the contact between the roller assembly 140 and the surface to be cleaned, the rotation speed of the second roller brush 130 is relatively low, so that hair and other debris on the surface to be cleaned are sucked away by the negative pressure before they have time to wrap around the second roller brush 130, that is, hair and other debris are not easily entangled on the second roller brush 130, effectively improving the anti-entanglement ability of the second roller brush 130, and there is no need to manually clean the second roller brush 130 regularly, further improving the user experience of the cleaning floor brush 100.

[0075] As shown in Figures 1, 2 and 3, in some embodiments, optionally, the roller assembly 140 includes a first roller 141 and a second roller 142, which are respectively located at two ends of the second roller brush 130 in the axial direction and are respectively connected to the second roller brush 130.

[0076] In this embodiment, the roller assembly 140 is defined to include a first roller 141 and a second roller 142. Specifically, along the axial direction of the second roller brush 130, the first roller 141 and the second roller 142 are respectively located at the two ends of the second roller brush 130, and the first roller 141 and the second roller 142 are respectively connected to the second roller brush 130. That is to say, the first roller 141 and the second roller 142 simultaneously drive the second roller brush 130 to rotate, ensuring that the second roller brush 130 can roll hair and other debris on the surface to be cleaned into the working chamber 111 during the rotation process, thereby ensuring the dust removal effect of the cleaning brush 100.

[0077] It can be understood that a portion of the first roller 141 and a portion of the second roller 142 are respectively exposed outside the working chamber 111, that is, part of the first roller 141 and part of the second roller 142 are in contact with the surface to be cleaned, so that under the action of the friction force generated by the contact between the first roller 141 and the second roller 142 and the surface to be cleaned, the first roller 141 and the second roller 142 respectively rotate on the surface to be cleaned, thereby driving the second roller brush 130 to rotate.

[0078] There is no need to set up a transmission mechanism to drive the second roller brush 130 to rotate, which simplifies the structure of the cleaning brush 100 and reduces the load on the motor. This can ensure the cleaning effect in different scenes while reducing the production cost of the cleaning brush 100 and improving the reliability of the cleaning brush 100.

[0079] Moreover, the rotation speed of the second roller brush 130 is relatively low, so that hair and other debris on the surface to be cleaned are sucked away by the negative pressure before they have time to wrap around the second roller brush 130, that is, hair and other debris are not easily wrapped around the second roller brush 130, effectively improving the anti-entanglement ability of the second roller brush 130.

[0080] In some embodiments, optionally, the first roller 141 , the second roller 142 and the second roller brush 130 are coaxially arranged.

[0081] In this embodiment, the first roller 141, the second roller 142 and the second roller brush 130 are coaxially arranged, thereby ensuring that the second roller brush 130 can rotate under the drive of the first roller 141 and the second roller 142, and further ensuring that the second roller brush 130 can roll hair and other debris on the surface to be cleaned into the working chamber 111 during the rotation process, thereby ensuring the dust removal effect of the cleaning brush 100.

[0082] It can be understood that, since the first roller 141 , the second roller 142 and the second roller brush 130 are coaxially arranged, the rotational speeds of the first roller 141 , the second roller 142 and the second roller brush 130 are consistent.

[0083] As shown in FIG. 3 , in some embodiments, optionally, a friction structure 150 is provided on the outer circumference of at least one of the first roller 141 and the second roller 142 .

[0084] In this embodiment, the outer circumference of at least one of the first roller 141 and the second roller 142 is provided with a friction structure 150. Specifically, the outer circumference of the first roller 141 is provided with the friction structure 150. Alternatively, the outer circumference of the second roller 142 is provided with the friction structure 150. Alternatively, the outer circumference of the first roller 141 and the outer circumference of the second roller 142 are both provided with a friction structure 150. The specific configuration can be based on actual needs.

[0085] It can be understood that the friction structure 150 is exposed to the working chamber 111, that is, the friction structure 150 can contact the surface to be cleaned, thereby significantly improving the friction between the first roller 141 and / or the second roller 142 having the friction structure 150 and the surface to be cleaned, preventing the first roller 141 and / or the second roller 142 from slipping on the surface to be cleaned, and facilitating the first roller 141 and / or the second roller 142 to rotate on the surface to be cleaned, thereby driving the second roller brush 130 to rotate, and ensuring the dust removal effect of the cleaning brush 100 in different cleaning scenarios.

[0086] In some embodiments, optionally, the friction structure 150 includes a protrusion, and at least a portion of the protrusion extends along the circumference of the first roller 141 and / or the second roller 142 .

[0087] In this embodiment, the friction structure 150 is defined as including protrusions. Specifically, when the protrusions are provided on the outer wall of the first roller 141, the protrusions extend along the circumference of the first roller 141. When the protrusions are provided on the outer wall of the second roller 142, the protrusions extend along the circumference of the second roller 142. When both the outer walls of the first roller 141 and the outer walls of the second roller 142 are provided with protrusions, the protrusions on the first roller 141 extend along the circumference of the first roller 141, and the protrusions on the second roller 142 extend along the circumference of the second roller 142.

[0088] The protrusions can contact the surface to be cleaned, thereby significantly improving the friction between the first roller 141 and / or the second roller 142 with the protrusions and the surface to be cleaned, preventing the first roller 141 and / or the second roller 142 from slipping on the surface to be cleaned, and facilitating the first roller 141 and / or the second roller 142 to rotate on the surface to be cleaned.

[0089] As shown in Figure 3, in some embodiments, optionally, at least one of the first roller 141 and the second roller 142 includes a hub 160 and a protective member 170, wherein the hub 160 is connected to the second roller brush 130, the protective member 170 is arranged on the outside of the hub 160, and the outer wall of the protective member 170 is provided with a friction structure 150.

[0090] In this embodiment, at least one of the first roller 141 and the second roller 142 includes a hub 160 and a protective member 170. Specifically, the first roller 141 includes the hub 160 and the protective member 170. Alternatively, the second roller 142 includes the hub 160 and the protective member 170. Alternatively, the first roller 141 and the second roller 142 each include a hub 160 and a protective member 170. The specific configuration can be determined based on actual needs.

[0091] The wheel hub 160 is connected to the second roller brush 130, and the protective member 170 is arranged on the outside of the wheel hub 160. That is, the wheel hub 160 is wrapped inside by the protective member 170, thereby protecting the wheel hub 160, which can effectively reduce the wear of the wheel hub 160 and thus extend the service life of the first roller 141 and / or the second roller 142 with the protective member 170.

[0092] The outer wall of the protective member 170 is provided with a friction structure 150. Since the friction structure 150 is exposed to the working chamber 111, that is, the friction structure 150 can contact the surface to be cleaned, thereby significantly improving the friction between the first roller 141 and / or the second roller 142 having the friction structure 150 and the surface to be cleaned, preventing the first roller 141 and / or the second roller 142 from slipping on the surface to be cleaned, and facilitating the first roller 141 and / or the second roller 142 to rotate on the surface to be cleaned, thereby driving the second roller brush 130 to rotate, thereby ensuring the dust removal effect of the cleaning brush 100 in different cleaning scenarios.

[0093] In some embodiments, the protective member 170 optionally comprises a wear member.

[0094] In this embodiment, the protective member 170 is defined to include a wear-resistant member, thereby being able to extend the service life of the protective member 170 while protecting the wheel hub 160 .

[0095] Optionally, the protective member 170 includes rubber, silicone or the like.

[0096] As shown in FIG. 3 , in some embodiments, optionally, the second roller brush 130 includes a brush body 131 and a connecting shaft 132 , wherein the brush body 131 is provided with a shaft hole 134 , and the connecting shaft 132 passes through the shaft hole 134 and is connected to the roller assembly 140 .

[0097] In this embodiment, it is defined that the second roller brush 130 includes a brush body 131 and a connecting shaft 132. Specifically, the brush body 131 is provided with an axis hole 134, the connecting shaft 132 is passed through the axis hole 134, and the connecting shaft 132 is connected to the roller assembly 140. That is, the roller assembly 140 drives the brush body 131 to rotate through the connecting shaft 132.

[0098] It is understandable that there is no relative rotation between the connecting shaft 132 and the brush body 131 , so that the connecting shaft 132 can drive the brush body 131 to rotate.

[0099] As shown in Figures 2 and 3, in some embodiments, optionally, the first roller brush 120 is provided with multiple first brushes 121; the second roller brush 130 also includes multiple second brushes 133, and the multiple second brushes 133 are arranged on the outer wall of the brush body 131; wherein, the hardness of at least one second brush 133 is less than the hardness of each first brush 121.

[0100] In this embodiment, the second roller brush 130 is defined to further include a plurality of second brushes 133 . Specifically, the plurality of second brushes 133 are disposed on the outer wall of the brush body 131 . The first roller brush 120 is provided with a plurality of first brushes 121 .

[0101] Specifically, the hardness of at least one second brush 133 is smaller than the hardness of each first brush 121. That is, the second brush 133 on the second roller brush 130 is set to be relatively soft. The first brush 121 on the first roller brush 120 is set to be relatively hard.

[0102] Thus, the first roller brush 120 and the second roller brush 130 can adapt to different types of surfaces to be cleaned, ensuring a good cleaning effect. Furthermore, the user does not need to manually change different types of roller brushes according to the usage scenario, thereby improving the user's experience of using the cleaning brush 100.

[0103] Optionally, the hardness of each second brush 133 is smaller than the hardness of each first brush 121 .

[0104] As shown in Figures 1 and 2, in some embodiments, optionally, the cleaning floor brush 100 also includes a connecting tube 180, which is provided in the shell 110 and is connected to the working chamber 111; wherein, the shell 110 is also provided with an opening 112, which is located on the side of the shell 110 away from the connecting tube 180 and is connected to the working chamber 111, and the second roller brush 130 is provided at the opening 112.

[0105] In this embodiment, the cleaning brush 100 is further provided with a communication pipe 180. Specifically, the communication pipe 180 is provided on the housing 110 and is in communication with the working chamber 111. It is understood that the communication pipe 180 is located at the rear side of the housing 110 along the direction of movement of the cleaning brush 100 on the surface to be cleaned, that is, when the cleaning brush 100 is pushed forward or pulled backward on the surface to be cleaned.

[0106] The shell 110 is further provided with an opening 112 . Specifically, the opening 112 is located on the side of the shell 110 away from the connecting pipe 180 , that is, the opening 112 is located on the front side of the shell 110 , that is, the opening 112 is a front opening, and the opening 112 is connected to the working chamber 111 .

[0107] The second roller brush 130 is arranged at the opening 112. On the one hand, during the rotation of the second roller brush 130 relative to the shell 110, hair and other fabrics and larger particles of debris on the surface to be cleaned can be rolled into the working chamber 111 and sucked into the collection chamber of the vacuum cleaner through the suction port and the connecting pipe 180, thereby improving the cleaning effect.

[0108] On the other hand, arranging the second roller brush 130 at the opening 112 can improve the sealing of the working chamber 111 when the cleaning brush 100 is in working state, enhance the suction force of the vacuum cleaner, and thus improve the dust removal efficiency of the vacuum cleaner.

[0109] Compared with the related art of manually adjusting the opening size according to the size of the debris particles, the operation process of the cleaning brush 100 can be significantly simplified, further improving the user experience.

[0110] In some embodiments, optionally, the first roller brush 120 is a bristle roller brush; and / or the second roller brush 130 is a soft velvet roller brush.

[0111] In this embodiment, the first roller brush 120 is a bristle roller brush, and the second roller brush 130 is a soft velvet roller brush. Thus, the first roller brush 120 and the second roller brush 130 can adapt to different types of surfaces to be cleaned, ensuring a good cleaning effect. This eliminates the need for users to manually change different types of roller brushes depending on the usage scenario, thereby improving the user experience of the cleaning brush 100.

[0112] In addition, the second roller brush 130 is a soft-pile roller brush, which contacts the surface to be cleaned, can improve the sealing of the working chamber 111, enhance the suction force of the vacuum cleaner, and thereby improve the dust removal efficiency of the vacuum cleaner.

[0113] According to a second aspect of the present application, a vacuum cleaner is provided, comprising a cleaning brush 100 as provided in any of the above embodiments, and thus possessing all the beneficial technical effects of the cleaning brush 100, which will not be described in detail here.

[0114] In this specification, the terms "connect," "install," and "fix" should be understood broadly. For example, "connect" can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0115] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0116] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A cleaning brush, wherein: include: a housing, wherein the housing is provided with a working chamber; a first roller brush rotatably disposed in the working chamber; a second roller brush, located along the radial direction of the first roller brush, the second roller brush being located on at least one side of the first roller brush; The roller assembly is rotatably disposed on the housing and connected to the second roller brush. At least a portion of the roller assembly is exposed outside the working chamber and is used to contact the surface to be cleaned.

2. The cleaning brush according to claim 1, wherein: The roller assembly comprises: A first roller and a second roller, wherein the first roller and the second roller are respectively located at two ends of the second roller brush in an axial direction and are respectively connected to the second roller brush.

3. The cleaning brush according to claim 2, wherein: The first roller, the second roller and the second roller brush are coaxially arranged.

4. The cleaning brush according to claim 2, wherein: A friction structure is provided on the outer peripheral surface of at least one of the first roller and the second roller.

5. The cleaning brush according to claim 4, wherein: The friction structure includes a protrusion, at least a portion of which extends along the circumference of the first roller and / or the second roller.

6. The cleaning brush according to claim 4, wherein: At least one of the first roller and the second roller comprises: a wheel hub connected to the second roller brush; A protective member is provided on the outer side of the hub, and the outer wall of the protective member is provided with the friction structure.

7. The cleaning brush according to any one of claims 1 to 6, wherein: The second roller brush comprises: A brush body, wherein the brush body is provided with an axial hole; A connecting shaft passes through the shaft hole and is connected to the roller assembly.

8. The cleaning brush according to claim 7, wherein: The first roller brush is provided with a plurality of first brushes; The second roller brush also includes: A plurality of second brushes are provided on the outer wall of the brush body; Wherein, the hardness of at least one of the second brushes is smaller than the hardness of each of the first brushes.

9. The cleaning brush according to any one of claims 1 to 6, wherein: The cleaning brush also includes: a communicating pipe, provided in the housing and communicating with the working chamber; The shell is further provided with an opening, which is located on a side of the shell away from the communicating pipe and is communicated with the working chamber, and the second roller brush is provided at the opening.

10. The cleaning brush according to any one of claims 1 to 6, wherein: The first roller brush is a bristle roller brush; and / or The second roller brush is a soft velvet roller brush.

11. A vacuum cleaner, wherein: The cleaning brush comprises the cleaning brush according to any one of claims 1 to 10.

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