Cleaning device and side brush structure thereof

Abstract

The present application provides a cleaning device and a side brush structure thereof. The side brush structure comprises a side brush base, a bristle support arm arranged on the side brush base, and a plurality of bristle bundles arranged on the bristle support arm. The bristle support arm is provided with a plurality of bristle fixing portions arranged in the extension direction of the bristle support arm, the plurality of bristle bundles are in one-to-one correspondence with the plurality of bristle fixing portions, and one end of each bristle bundle is connected to the corresponding bristle fixing portion. Hair does not easily get tangled around the side brush structure, and the side brush structure has a large cleaning area and achieves a good cleaning effect.

Description

Cleaning equipment and its side brush structure

[0001] This application claims priority to Chinese Patent Application No. 202520157778.7, filed on January 23, 2025, entitled "Cleaning Equipment and Side Brush Structure Thereof", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of intelligent cleaning technology, and in particular to a cleaning device and its side brush structure. Background Technology

[0003] With the development of intelligent cleaning technology, various cleaning equipment (such as robot vacuum cleaners) are now widely used, and the requirements for the effectiveness of cleaning equipment are getting higher and higher.

[0004] In related technologies, the cleaning equipment has multiple side brush structures at its bottom, and each side brush structure includes a side brush base and multiple bundles of bristles arranged circumferentially along the side brush base. When the cleaning equipment is in operation, it moves on the ground, the side brush structures rotate, and the bristles in the side brush structures come into contact with the ground to sweep away dust or other debris on the ground.

[0005] However, during the cleaning process, hair is more likely to get tangled in the side brush structure, resulting in poor cleaning effect. Summary of the Invention

[0006] This application provides a cleaning device and its side brush structure, which makes it difficult for hair to get tangled, has a large cleaning area, and provides a better cleaning effect.

[0007] According to one aspect of this application, a side brush structure for a cleaning device is provided, including a side brush base, a bristle support arm disposed on the side brush base, and a plurality of bristle bundles disposed on the bristle support arm.

[0008] The bristle support arm has a plurality of bristle fixing parts arranged along its extension direction, and the plurality of bristle bundles correspond one-to-one with the plurality of bristle fixing parts, with one end of each bristle bundle connected to the corresponding bristle fixing part.

[0009] Optionally, in the extending direction of the bristle support arm, the angles formed by the plurality of bristle bundles and the bristle support arm gradually decrease.

[0010] Optionally, each of the bristle fixing portions has a bristle fixing port at its end away from the side brush base, and one end of each bristle bundle extends into the bristle fixing port of the corresponding bristle fixing portion for fixing.

[0011] Optionally, the bristle bundle is detachably connected to the corresponding bristle fixing part.

[0012] Optionally, in the extending direction of the bristle support arm, at least two of the plurality of bristle bundles have different inclination angles, whereby the inclination angle of the bristle bundle refers to the angle between the extending direction of the bristle bundle and the working surface.

[0013] Optionally, the tilt angle of the plurality of bristle bundles gradually decreases in the extending direction of the bristle support arm.

[0014] Optionally, the lengths of the plurality of bristle bundles gradually decrease in the extending direction of the bristle support arm.

[0015] Optionally, the bristle support arm is rotatable about the central axis of the side brush base; in the rotation direction of the bristle support arm, at least two of the plurality of bristle bundles are staggered.

[0016] Optionally, in the rotational direction, the bristle bundles near the side brush base are located on the front side of the bristle bundles away from the side brush base.

[0017] Optionally, there are two bristle fixing parts, one of which is located at the end of the bristle support arm away from the side brush base, and the other is located in the middle of the bristle support arm.

[0018] Optionally, the bristle support arm is rotatable about the central axis of the side brush base, and the bristle support arm bends in the opposite direction of its rotation.

[0019] Optionally, at least one of the plurality of bristle fixing parts is located on the concave surface of the bristle support arm, and / or, at least one of the plurality of bristle fixing parts is located on the convex surface of the bristle support arm.

[0020] Optionally, the bristle support arm is inclined from the side brush base toward the working surface of the bristle bundle.

[0021] Optionally, the material of the bristle support arm may include a deformable material.

[0022] Optionally, the distance between two adjacent fixed bristle portions is less than the distance between the free ends of the corresponding bristle bundles.

[0023] According to another aspect of this application, a cleaning device is provided, comprising: a device body and the aforementioned side brush structure, the side brush structure being mounted on the bottom of the device body.

[0024] In this embodiment, the side brush structure includes a bristle support arm for setting bristles, and multiple bristle fixing parts are arranged along its extension direction, each connected to a multiple bristle bundle. Thus, during cleaning, the individual bristle support arm is less likely to provide support for the bristles, making it less prone to hair entanglement in the side brush structure. Furthermore, the multiple bristle bundles ensure that larger areas can be cleaned, improving the cleaning effect of the cleaning equipment. Attached Figure Description

[0025] Figure 1 is a schematic diagram of the side brush structure of a cleaning device provided in an embodiment of this application;

[0026] Figure 2 is a schematic diagram of another side brush structure provided in an embodiment of this application;

[0027] Figure 3 is an exploded view of a side brush structure provided in an embodiment of this application;

[0028] Figure 4 is a cross-sectional view of a side brush structure provided in an embodiment of this application;

[0029] Figure 5 is a schematic diagram of another side brush structure provided in an embodiment of this application;

[0030] Figure 6 is a schematic diagram of another side brush structure provided in an embodiment of this application;

[0031] Figure 7 is a schematic diagram of the structure of a cleaning device provided in an embodiment of this application. Detailed Implementation

[0032] Many specific details are set forth in the following description to provide a full understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of this application; therefore, this application is not limited to the specific embodiments disclosed below.

[0033] The terminology used in one or more embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the scope of the one or more embodiments of this application. The singular forms “a,” “the,” and “the” used in one or more embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” used in one or more embodiments of this application refers to and includes any or all possible combinations of one or more associated listed items. The term “at least one” in one or more embodiments of this application means “one or more,” and “a plurality of” means “two or more.” The term “comprising” is an open-ended description and should be understood as “including but not limiting,” and may include other content in addition to what has been described.

[0034] It should be understood that although the terms "first," "second," etc., may be used to describe various information in one or more embodiments of this application, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, "first" may also be referred to as "second" without departing from the scope of one or more embodiments of this application, and similarly, "second" may also be referred to as "first." Depending on the context, the word "if," as used herein, may be interpreted as "when," "in response to a determination," or "when," or "in the event of a determination."

[0035] Currently, smart home devices are widely used, among which cleaning equipment (such as vacuum cleaners, sweeping robots, mopping robots, and window cleaning robots) are used frequently, and the requirements for the cleaning effect of cleaning equipment are also getting higher and higher.

[0036] Cleaning equipment typically includes a main body, as well as casters, a cleaning roller brush, and a side brush structure mounted on the bottom of the main body. The cleaning roller brush is usually located in the middle area of ​​the bottom of the main body, while the side brush structure is located at the edge of the bottom of the main body. A dust box is located in the main body, and a debris suction port connected to the dust box may also be opened on the bottom of the main body. The side brush structure typically includes a side brush base and multiple brush legs arranged circumferentially along the side brush base, with each brush leg having a tuft of bristles.

[0037] The cleaning equipment moves across the ground via its wheels while its side brush structure rotates. The bristles in the side brush contact the ground, sweeping dust, hair, and debris from the edges of the equipment into the area covered by the cleaning rollers and debris suction inlet. The cleaning rollers and debris suction inlet then collect the debris into the dustbin, thus cleaning the floor. However, because existing side brush structures have multiple circumferentially arranged brush legs, hair easily gets tangled between adjacent brush legs during rotation. This prevents the bristles from effectively cleaning the floor and can damage them, resulting in poor cleaning performance. Manual intervention is usually required to remove the tangled hair, leading to a poor user experience.

[0038] This application provides a side brush structure for a cleaning device, which can reduce hair entanglement and improve the cleaning effect of the cleaning device. This application also relates to a cleaning device, which will be described in detail below.

[0039] Figure 1 is a schematic diagram of a side brush structure of a cleaning device provided in an embodiment of this application. As shown in Figure 1, the side brush structure 10 includes: a side brush base 101, a bristle support arm 102 disposed on the side brush base 101, and a plurality of bristle bundles 103 disposed on the bristle support arm 102.

[0040] The bristle support arm 102 extends outward from the side brush base 101, such that its extension direction can be the x-direction in Figure 1. The bristle support arm 102 has a plurality of bristle fixing portions S arranged along its extension direction, and a plurality of bristle bundles 103 correspond one-to-one with the plurality of bristle fixing portions S, with one end of each bristle bundle 103 connected to the corresponding bristle fixing portion S. Accordingly, the plurality of bristle bundles 103 are arranged along the extension direction of the bristle support arm 102. In this embodiment, the bristle support arm 102 can be considered to include an arm body and a plurality of bristle fixing portions S on the arm body. Each bristle bundle 103 can extend outward from the corresponding bristle fixing portion S. As shown in Figure 1, the extension direction of one bristle bundle 103 is illustrated, and the extension direction of this bristle bundle 103 is the y-direction in Figure 1. The extension directions of other bristle bundles 103 are similar and will not be illustrated individually here.

[0041] The side brush base 101 is rotatable. When the side brush base 101 rotates, it drives the bristle support arm 102 to rotate, which in turn drives the bristle bundle 103 fixed thereon to rotate, thus enabling the bristle bundle 103 to clean debris from the working surface. This working surface can refer to the horizontal plane when the cleaning equipment is in operation, such as the ground surface where the bristle bundle 103 is located. Alternatively, the working surface can be a plane perpendicular to the axis of rotation of the movable bristle support arm 102. For example, the side brush base 101 rotates around its central axis (axis z in Figure 1), which is the axis of rotation of the side brush base 101. Correspondingly, the bristle support arm 102 and the bristle bundle 103 also rotate around this axis. The multiple bristle bundles 103 are arranged sequentially in a direction away from the axis z.

[0042] The side brush base 101 can be detachably mounted on another structure to rotate under the drive of that other structure. Such other structure can be a rotary motor on a cleaning device. The rotary motor transmits power directly to the side brush base 101 through a transmission gear, thereby driving the entire side brush structure to rotate, achieving cleaning of the work surface using the bristle bundles 103.

[0043] Hair typically overlaps between multiple closely spaced components and becomes increasingly entangled as the component rotates. In this embodiment, the side brush structure 10 includes only one bristle support arm 102 for setting the bristles. Thus, this single bristle support arm 102 is less likely to provide support for the hair during rotation, and correspondingly, the side brush structure 10 is less likely to entangle the hair, reducing bristle damage caused by hair entanglement.

[0044] Furthermore, multiple bristle bundles 103 are arranged along the extending direction of the bristle support arm 102, that is, along the direction away from the rotating axis. In this way, during the rotation of the bristle support arm 102, the multiple bristle bundles 103 can clean together and clean different areas around the rotating axis. Thus, the multiple bristle bundles can ensure that the side brush structure can clean a larger area, thereby improving the cleaning efficiency of the cleaning equipment.

[0045] The bristle support arm 102 extends laterally from the side brush base 101. One end of the bristle support arm 102 is connected to the side brush base 101, and the other end can be a free end. The bristle support arm 102 and the side brush base 101 can be a single piece, or they can be fixedly connected or detachably connected; this is not limited here. If the edge of the side brush base 101 is provided with a snap-fit ​​part, one end of the bristle support arm 102 can be fixed to the snap-fit ​​part by snap-fit. When the bristle support arm 102 or the bristle bundle 103 is damaged, only the bristle support arm 102 and the bristle bundle 103 on it can be replaced, without replacing the entire side brush structure 10, thereby reducing cleaning costs.

[0046] Figure 2 is a schematic diagram of another side brush structure provided in an embodiment of this application. Figure 3 is an exploded view of a side brush structure provided in an embodiment of this application. Figure 4 is a cross-sectional view of a side brush structure provided in an embodiment of this application, where the cross-section is parallel to the central axis z of the side brush base. Figure 3 can be an exploded view of the side brush structure shown in Figure 2, and Figure 4 can be a cross-sectional view of the side brush structure shown in Figure 2. As shown in Figures 2 to 4, the side brush base 101 may include a main body structure 1011, a side brush shell 1012, and a side brush cover 1013. The side brush shell 1012 is fitted over the main body structure 1011 and the side brush cover 1013, and the side brush cover 1013 covers the opening below the side brush shell 1012. The side brush structure 101 as a whole can adopt a snap-fit ​​structure design, wherein the various components are snapped together and fixed. The bristle support arm 102 and the side brush shell 1012 can be an integral structure, such as the bristle support arm 102 and the side brush shell 1012 can be integrally formed by injection molding. Alternatively, the body structure 1011 and the side brush cover 1013 may be made of rigid plastic or other materials.

[0047] The bristle support arm 102 is used to support and fix the bristle bundle 103. Each bristle bundle 103 may include multiple bristles of substantially the same length, which can be closely arranged and connected and fixed together at one end to form a bristle bundle 103. The bristles are flexible and deformable. During the cleaning process, each bristle bundle 103 can deform under the pressure of the cleaning equipment, and the portion of the bristle bundle 103 located at the free end is pressed into contact with the working surface.

[0048] In some embodiments, the bristle support arm 102 is made of a deformable material, such as TPU (thermoplastic polyurethane elastomer) or rubber. This allows the bristle support arm 102 to deform during rotation, dispersing some of the force applied to the bristle bundle 103 and preventing all pressure from concentrating on the bristles, thus reducing the probability of damage to the bristle bundle 103. Optionally, the bristle support arm 102 can also be made of a non-deformable rigid material; this is not limited to this embodiment.

[0049] The bristle support arm 102 can have a roughly rectangular cross-section, perpendicular to its extension direction. The bristle support arm 102 can have four surfaces connecting its two ends. The surface closest to the working surface of the bristle bundle 103 is called the bottom surface, the surface opposite the bottom surface is called the top surface, and the surfaces other than the bottom and top surfaces are called the side surfaces. Referring to Figures 1 to 4, the downward-facing surface of the bristle support arm 102 is the bottom surface, the upward-facing surface is the top surface, and the surfaces facing outwards and inwards from the paper are the side surfaces. The bristle support arm 102 can also have other shapes, such as a circular, elliptical, or other cross-sections; this is not limited here.

[0050] In this embodiment, the bristle support arm 102 is inclined from the side brush base 101 toward the working surface of the bristle bundle 103. In the height direction when the side brush structure 10 is in working state, the bristle support arm 102 gradually inclines downward from the side brush base 101, with the end of the bristle support arm 102 connected to the side brush base 101 higher than the end away from the side brush base 101. This height direction is the direction of the central axis of the side brush base 101, and also the arrangement direction of the top and bottom surfaces of the bristle support arm 102. Because the bristle support arm 102 is inclined downward, the bristle fixing part S on the bristle support arm 102 is also inclined. After the bristle bundle 103 is fixed to the bristle fixing part S, it can directly be in an inclined state, which facilitates contact between the bristle bundle 103 and the working surface.

[0051] In this embodiment, each bristle bundle 103 can be fixed by a bristle fixing part S on the bristle support arm 102. As shown in Figures 1 to 4, different bristle fixing parts S can be structures that protrude at different positions on the bristle fixing arm 102, so as to ensure that different bristle bundles 103 are spaced apart for cleaning different areas in the working surface respectively. The bristle fixing part S is made of the same material as other parts of the bristle support arm 102 (such as the arm body) and can be integrally formed.

[0052] Figure 5 is a schematic diagram of another side brush structure provided in an embodiment of this application. Figure 5 illustrates an example where the side brush support arm 102 in the side brush structure 10 has three side brush fixing parts S, and correspondingly, the side brush structure 10 includes three bristle bundles 103. In this embodiment, the number of bristle bundles 103 in the side brush structure 10 is equal to the number of side brush fixing parts S in the side brush support arm 102, and this number can be greater than or equal to 2. In this embodiment, the two cases of 2 and 3 are illustrated with reference to the accompanying drawings. The number can also be 4 or even more, and is not limited here.

[0053] In this embodiment, each side brush fixing part S can be evenly distributed on the side brush support arm 102. In some embodiments, one bristle fixing part S may be located at the end of the bristle support arm 102 away from the side brush base 101, such as the part enclosed by the dashed box in Figure 3. Alternatively, the end of the bristle support arm 102 can be considered as a bristle fixing part S directly.

[0054] In one embodiment, referring to Figures 1 to 4, there are two bristle fixing parts S, and correspondingly, there are also two bristle bundles 103. One bristle fixing part S is located at the end of the bristle support arm 102 away from the side brush base 101, that is, the end of the bristle support arm 102 away from the side brush base 101 directly serves as a bristle fixing part S; the other bristle fixing part S is located in the middle of the bristle support arm 102. The bristle fixing part S located in the middle of the bristle support arm 102 may not be located in the exact center of the bristle support arm 102; this position can be determined based on the area to be cleaned by the corresponding bristle bundle 103. In this embodiment, two bristle bundles 103 are provided, which allows for a larger contact length between the bristle bundle 103 and the working surface during operation, thus enabling more effective utilization of the bristle bundle 103.

[0055] In this embodiment, at least one bristle fixing part S can be located on the side of the bristle support arm 102, and this method will be used as an example in the following description. In some embodiments, the bristle fixing part S can also be located on the bottom surface of the bristle support arm 102, which is not limited here.

[0056] Each bristle bundle 103 can be fixedly connected to a corresponding bristle fixing part S. For example, the bristles in each bristle bundle 103 can be directly attached to the corresponding bristle fixing part S. In one embodiment, the bristle bundle 103 is detachably connected to the corresponding bristle fixing part S. In case of damage to the bristle bundle 103, the original bristle bundle 103 can be disassembled and replaced with a new bristle bundle 103 without replacing the side brush structure 10, thereby reducing cleaning costs. For example, one end of the bristle bundle 103 can be provided with a connector, which is used to fix one end of each bristle and also to fix the bristle bundle 103 to other components, such as fixing the bristle bundle 103 to the bristle support arm 102. For example, the connector can be connected to the bristle fixing part S by means of a snap or threaded connection.

[0057] Each bristle fixing part S has a structure for fixing the bristle bundle 103. For example, referring to Figures 2 through 5, each bristle fixing part S has a bristle fixing opening K at its end away from the side brush base 101, and one end of each bristle bundle 103 extends into the bristle fixing opening K of the corresponding bristle fixing part S for fixing. The bristle fixing opening K can be a blind hole. In some embodiments, one end of the bristle bundle 103 can be glued to the bristle fixing opening K using a fixing agent such as adhesive. If the bristle bundle 103 includes a connector, the connector of the bristle bundle 103 extends into the bristle fixing opening K. The connector can be snapped into the bristle fixing opening K. In some embodiments, the bristle fixing part S may not have a bristle fixing opening, but only a snap-fit ​​structure, with one end of the bristle bundle 103 snapped into this snap-fit ​​structure.

[0058] Each bristle fixing part S has a certain extension direction, and the extension direction of the corresponding bristle bundle 103 can be determined by the extension direction of the bristle fixing part S. For example, if the internal space of the bristle fixing opening K extends in a certain direction, the bristle bundle 103 will be restricted by that direction after it extends into the bristle fixing opening K, and will also extend in that direction accordingly. In the embodiments of this application, the extension direction of the bristle fixing part S needs to meet certain design requirements, and correspondingly, the extension direction of the bristle bundle 103 needs to meet certain requirements. This will be described in detail later, and will not be elaborated here. Regarding the extension direction of the bristle bundle 103 in Figures 2 to 5, please refer to the description of the extension direction of the bristle bundle 103 in Figure 1. The extension direction of the bristle bundle 103 is not shown in Figures 2 to 5.

[0059] Please continue referring to Figure 1. The bristle support arm 102 is straight and extends along a straight line (e.g., the x-direction). In this configuration, the bristle fixing part S and the bristle bundle 103 can be located on either side of the bristle support arm 102. Optionally, the location of the bristle fixing part S and the bristle bundle 103 can be related to the rotation direction of the bristle support arm 102. For example, they can be located on the rear side in the rotation direction, so that the bristle support arm 102 is in front of the bristle bundle 103 during rotation, thereby better enabling the bristle support arm 102 to drive the bristle bundle 103.

[0060] In one embodiment of this application, referring to Figures 2 to 5, the bristle support arm 102 is arc-shaped, or spiral-shaped. Correspondingly, the extension direction of the bristle support arm 102 is arc-shaped. For information on the extension direction of the bristle support arm 102 in Figures 2 to 5, please refer to the description of the extension direction of the bristle support arm 102 in Figure 1. The extension direction of the bristle support arm 102 is not shown in Figures 2 to 5. The bristle support arm 102 can rotate around the central axis of the side brush base 101, such as in the w direction (i.e., counterclockwise in the figure), and the bristle support arm 102 bends in the opposite direction of its rotation. During rotation, the convex surface of the bristle support arm 102 is further forward than the concave surface. Thus, the centrifugal force generated by the bristle support arm 102 during rotation can more easily dislodge attached debris (such as hair), reducing hair entanglement. Furthermore, during the rotation of the bristle support arm 102, the force exerted by the obstacle on the bristle support arm 102 can be along the tangent of the convex surface, and the force can be relatively small. This can reduce the rotational resistance of the bristle support arm 102, making it easier to drive the bristle bundle 103 to move.

[0061] Please continue referring to Figures 2 to 5. At least one of the multiple bristle fixing parts S of the bristle support arm 102 can be located on the concave surface of the bristle support arm 102. Correspondingly, the bristle bundle 103 can be located on the side where the concave surface of the bristle support arm 102 is located. Since the convex surface of the bristle support arm 102 is forward during rotation, this arrangement ensures that the bristle support arm 102 is located in front of the bristle bundle 103 during rotation, thereby better enabling the bristle support arm 102 to drive the bristle bundle 103. Furthermore, placing the bristle fixing part S on the concave surface ensures a high degree of smoothness on the convex surface of the bristle support arm 102, preventing hair and other debris from adhering during rotation. In the event of obstacles during cleaning, the bristle support arm 102 will first touch the obstacle, which can also play a role in avoiding obstacles and preventing them from obstructing or damaging the bristle bundle 103.

[0062] In some embodiments, at least one of the multiple bristle fixing portions S of the bristle support arm 102 may be located on the convex surface of the bristle support arm 102. For details on the fixing method, please refer to the description for concave surfaces. Optionally, the bristle support arm 102 may also have bristle fixing portions S on both the concave and convex surfaces. This is equivalent to having two rows of bristle bundles 103 arranged sequentially in the rotation direction. During the rotation of the bristle support arm 102, the same area on the working surface can be cleaned twice by the two bristle bundles 103, which can improve the cleaning cleanliness.

[0063] Referring to Figures 1 to 5, the distance between two adjacent bristle fixing parts S in the bristle support arm 102 is less than the distance between the free ends of the corresponding bristle bundles 103. Each bristle bundle 103 can be arranged in a shape that spreads outward from the bristle support arm 102. This ensures that the cleaning end of each bristle bundle 103 can cover a larger area, thereby obtaining a larger cleaning area and improving the overall cleaning effect.

[0064] In this embodiment, the arrangement of the bristle bundles 103 in the side brush structure 10 affects the overall cleaning effect of the side brush structure 10. The arrangement of the bristle bundles 103 is influenced to some extent by the arrangement of the bristle fixing part S in the bristle support arm 102. For example, the extension direction of the bristle bundles 103 can be determined by the extension direction of the bristle fixing part S. Some optional arrangements of the bristle bundles 103 are described below. The corresponding arrangements of the bristle fixing parts S can be deduced by analogy and will not be described one by one here.

[0065] In some embodiments, referring to Figures 1 through 5, the angles formed by each bristle bundle 103 and the bristle support arm 102 gradually decrease along the extending direction of the bristle support arm 102. As shown in Figure 1, the angle between the bristle bundle 103 and the bristle support arm 102 can refer to the angle between the extending direction (y-direction) of the bristle bundle 103 and the extending direction (x-direction) of the bristle support arm 102. The angle between the bristle bundle 103 and the bristle support arm 102 can also be the angle between the bristle bundle 103 and the corresponding comb fixing part S and the bristle support arm 102. For example, in Figure 1, the angles formed by the two bristle bundles 103 and the bristle support arm 102 are angle a and angle b, respectively, and angle a and angle b are different. By making the angles between different bristle bundles 103 and the bristle support arm 102 different, different bristle bundles 103 can have different contact areas with the working surface during the cleaning process. The angle can be set according to specific cleaning needs to make the overall cleaning range larger.

[0066] This arrangement also allows for different bristle bundles 103 to have different order of rotation in the rotation direction, resulting in a sequential cleaning order for different cleaning areas. In one embodiment, angle a is greater than angle b. During rotation, the outer bristle bundles 103 are positioned further forward than the inner bristle bundles 103 in the rotation direction. This allows for cleaning the outer area first, followed by the inner area. When cleaning the outer area, the hair is swept away, preventing it from moving inward and tangling with different bristle bundles, thus improving the anti-tangling effect. In another embodiment, angle a is less than angle b. During rotation, the inner bristle bundles 103 are positioned further forward than the outer bristle bundles 103 in the rotation direction. This allows for cleaning the inner area first, followed by the outer area. This more effectively sweeps debris to the designated debris collection point in the cleaning device, resulting in a better overall cleaning effect.

[0067] The degree of inclination of different bristle bundles 103 will affect the cleaning effect to a certain extent. For example, in the extension direction of the bristle support arm 102, at least two bristle bundles 103 of the side brush structure 10 have different inclination angles. The inclination angle of the bristle bundle 103 refers to the angle between the extension direction of the bristle bundle 103 and the working surface. Correspondingly, the target angle formed by the extension direction of the bristle bundle 103 and the rotation axis z is also different, and the sum of the target angle and the inclination angle is equal to 90 degrees. As shown in the schematic diagrams of Figures 1 to 5, the inclination angle can be the angle between the extension direction of the bristle bundle 103 and the horizontal plane. The larger the inclination angle, the steeper the extension slope of the bristle bundle 103.

[0068] In some embodiments, referring further to Figures 1 to 5, the tilt angles of the plurality of bristle bundles 103 of the side brush structure 10 gradually decrease in the extending direction of the bristle support arm 102. For example, the tilt angle of the bristle bundles 103 near the side brush base 101 (that is, near the root of the bristle support arm 102) is greater than the tilt angle of the bristle bundles 103 away from the side brush base 101.

[0069] Since the bristle support arm 102 is fixed to other structures via the side brush base 101, the bristle bundles fixed on the bristle support arm 102 receive more upward support from the other structures the closer they are to the side brush base 101, and more downward pressure from the bristle support arm 102 the farther they are from the side brush base 101. If other conditions (length and orientation) of the two bristle bundles 103 are the same, during operation, the bristle bundle 103 farther from the side brush base 101 will be bent to have a larger contact area with the ground, and more of the bristle tip will contact the ground. The larger the bristle tilt angle, the more it will bend under less pressure, and under the same pressure, the bristle with a larger tilt angle will have a larger contact area with the ground.

[0070] In this embodiment, the bristle bundles 103 near the side brush base 101 have a larger tilt angle. This balances the relatively small downward pressure of the bristle bundles 103, resulting in a more uniform contact area between each bristle bundle 103 and the working surface during operation. This ensures that the bristle bundles 103 near the side brush base 101 also have sufficient contact area with the working surface, allowing for a larger overall cleaning area of ​​the side brush structure 10 and improving the cleaning effect. Optionally, the tilt angles of each bristle bundle 103 can be the same, or the tilt angle of the bristle bundles 103 near the side brush base 101 can be smaller than the tilt angle of the bristle bundles 103 far from the side brush base 101; this is not limited here.

[0071] The length of the bristle bundles 103 can also affect the cleaning effect to some extent. In some embodiments, the lengths of the multiple bristle bundles 103 of the side brush structure 10 gradually decrease in the extending direction of the bristle support arm 102. For example, the length of the bristle bundles 103 near the side brush base 101 is greater than the length of the bristles away from the side brush base 101.

[0072] After the side brush structure 10 is fixed to the cleaning equipment, the maximum distance between the position of each bristle bundle 103 on the bristle support arm 102 and the working surface can be determined. This distance determines the portion of the bristle bundle 103 that will not contact the working surface during operation; the remaining portion will be bent to contact the working surface. If a bristle bundle 103 is longer, the entire portion of that bristle bundle 103 will be longer, resulting in a larger contact area with the working surface. Since the bristle bundles 103 near the side brush base 101 experience less downward pressure, their length can be increased to balance this lower pressure, resulting in a more uniform contact area between each bristle bundle 103 and the working surface, and improving the overall cleaning area.

[0073] Optionally, the lengths of all bristle bundles 103 in the side brush structure 10 may be the same, or the lengths of the bristle bundles 103 closer to the side brush base 101 may be shorter than the lengths of the bristles farther from the side brush base 101; this is not limited here. For example, the length of the bristle bundle 103 is 50 mm, and it can contact the ground from 30 mm to 40 mm during operation.

[0074] In some designs, the tilt angle and length of each bristle bundle 103 can be tailored based on its height and the expected pressure during operation, so that the bent bristle portions of adjacent bristle bundles 103 can be in near contact. This ensures that a larger cleaning area is covered on the working surface, preventing uncleaned areas from being created due to gaps between adjacent bristle bundles 103.

[0075] In this embodiment, the bristle support arm 102 rotates around the central axis z of the side brush base 101. During rotation, if the portions of each bristle bundle 103 that contact the working surface (i.e., the portions actually used for cleaning) are arranged in the same radial direction with the central axis z as the center, that is, aligned in the rotation direction and located in any plane perpendicular to the rotation direction, then during rotation, each bristle bundle 103 simultaneously cleans the position in that radial direction. In one embodiment of this application, the bristle bundles 103 in the side brush structure 10 can be aligned in the rotation direction.

[0076] In some embodiments, at least two of the multiple bristle bundles 103 are staggered in the rotation direction of the bristle support arm 102. For example, this staggered position may refer to the position of the free end of the bristle bundle 103. Alternatively, it can be considered that during the rotation, the portions of the at least two bristle bundles 103 actually used for cleaning are arranged in different radial directions, such as in different planes perpendicular to the rotation direction. In this way, during the cleaning process, the at least two bristle bundles 103 have a sequential cleaning order, with the bristle bundle 103 that is forward in the rotation direction cleaning first, and the bristle bundle 103 that is backward cleaning later.

[0077] Figure 6 is a schematic diagram of another side brush structure provided in an embodiment of this application. Figure 6 shows a top view of the side brush structure 10, illustrating the cleaning sequence of different bristle bundles 103. As shown in Figure 6, L1 and L2 represent the parts of the two bristle bundles 103 that contact the ground during the cleaning process. In the rotation direction w, L1 is slightly ahead, so during the cleaning process, L1 cleans the area it passes through first, and L2 cleans the area it passes through after L1. In this method, the dust cleaned by L1 may fall to the position that L2 is about to pass through, but since L2 cleans later, L2 will also clean the dust brought up by L1, which can improve the overall cleaning effect.

[0078] In some embodiments, in the rotation direction, the bristle bundle 103 farther from the side brush base 101 is located on the front side of the bristle bundle 103 closer to the side brush base 101. As shown in FIG6, L1 can correspond to the bristle bundle 103 farther from the side brush base 101, and L2 can correspond to the bristle bundle 103 closer to the side brush base 101. Since the bending direction of the bristle support arm 102 is opposite to the rotation direction, in the rotation direction, the bristle bundle 103 farther from the side brush base 101 can more naturally be positioned further back in the rotation direction. In this way, both the side brush fixing part S and the bristle bundle 103 can be directly set according to the bending condition of the bristle support arm 102, and the setting method is relatively simple and convenient.

[0079] In some embodiments, in the rotational direction, the bristle tufts 103 closer to the side brush base 101 (referred to as the inner bristle tufts 103) are located in front of the bristle tufts 103 farther from the side brush base 101 (referred to as the outer bristle tufts 103), that is, the bristle tufts 103 closer to the side brush base 101 are further forward than the bristle tufts 103 farther from the side brush base 101. Thus, during the cleaning process, the inner bristle tufts 103 clean first, and the outer bristle tufts 103 can also clean up dust and other debris carried to the outside by the inner bristle tufts 103.

[0080] The side brush structure 10 needs to sweep dust and other debris into the cleaning area of ​​the cleaning device, which can be the area covered by the cleaning roller brush and the debris suction port. The side brush structure 10 is typically located on the side of the cleaning device, while the cleaning roller brush and debris suction port are usually located in the middle of the device. Therefore, the bristle bundles 103 need to sweep debris to this middle position so that the cleaning roller brush and debris suction port can collect the debris into the dust box. The outer bristle bundles 103 can move closer to this middle position during rotation, so the inner bristle bundles 103 can carry debris to this middle position more effectively. Therefore, in this embodiment, the outer bristle bundles 103 are swept later in the cleaning sequence to ensure that debris is better swept into the cleaning area and collected into the dust box, thus improving the overall cleaning effect.

[0081] The side brush structure 10 provided in this embodiment only has one side brush support arm 102, which has a simple overall structure, low cost, and can reduce hair entanglement and improve user experience. The side brush support arm 102 can be bent in the opposite direction of rotation, which can further improve the hair removal effect and avoid hair entanglement. Multiple bristle bundles 103 are provided on the side brush support arm 102 through the bristle fixing part S, which can ensure that each bristle bundle 103 covers a large cleaning area, thereby improving the overall cleaning effect of the side brush structure 10. Furthermore, the side brush structure 10, the side brush support arm 102, and the bristle bundles 103 can all be replaced, which can reduce cleaning costs and improve usage flexibility.

[0082] Furthermore, by setting different tilt angles and lengths for the bristle bundles 103, the pressure on each bristle bundle 103 can be balanced, ensuring a larger overall cleaning area. Setting the cleaning sequence of the bristle bundles 103 simplifies preparation and increases the probability of sweeping debris into the cleaning area of ​​the cleaning equipment, thus reducing cleaning effectiveness.

[0083] This application also provides a cleaning device. Figure 7 is a schematic diagram of the structure of a cleaning device provided in this application embodiment. As shown in Figure 7, the cleaning device includes a main body 20 and a side brush structure 10, which is installed at the bottom of the main body 20. The side brush structure 10 can be any of the side brush structures shown in Figures 1 to 6. The cleaning device may also include components such as moving wheels, a dust box, a vacuuming assembly, and cleaning rollers, which are not shown in detail in this application embodiment.

[0084] In this embodiment of the application, as shown in FIG7, the cleaning device may include only one side brush structure 10, which can rotate in the rotation direction w in FIG7 to sweep the cleaned debris to the coverage area of ​​the debris suction port and the cleaning roller. In some embodiments, the cleaning device may further include an additional side brush structure 10, such as the side brush structure 10 being symmetrically arranged with the side brush structure 10 in FIG7, as shown in the position of the dashed box in FIG7. If this arrangement is made, the rotation direction of the side brush structure 10 is opposite to the rotation direction of the existing side brush structure 10 in FIG7, that is, both side brush structures 10 rotate towards the middle area of ​​the device body 20.

[0085] The cleaning device provided in this application embodiment utilizes a simpler side brush structure 10, which simplifies the preparation process of the cleaning device, reduces hair entanglement, improves cleaning effect, and enhances user experience.

[0086] The foregoing has described specific embodiments of this application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in a different order than that shown in the embodiments and may still achieve the desired results. Furthermore, the processes depicted in the drawings do not necessarily require the specific or sequential order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0087] Those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to this application. In the above embodiments, the descriptions of each embodiment have different focuses, and for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0088] The preferred embodiments disclosed above are merely illustrative of this application. The optional embodiments do not exhaustively describe all details, nor do they limit this application to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this application. These embodiments are selected and specifically described in this application to better explain the principles and practical applications of this application, thereby enabling those skilled in the art to better understand and utilize this application.

Claims

1. A side brush structure for a cleaning device, characterized in that, It includes a side brush base, a bristle support arm disposed on the side brush base, and a plurality of bristle bundles disposed on the bristle support arm; The bristle support arm has a plurality of bristle fixing parts arranged along its extension direction, and the plurality of bristle bundles correspond one-to-one with the plurality of bristle fixing parts, with one end of each bristle bundle connected to the corresponding bristle fixing part.

2. The side brush structure according to claim 1, characterized in that, In the extending direction of the bristle support arm, the angles formed by the plurality of bristle bundles and the bristle support arm gradually decrease.

3. The side brush structure according to claim 1, characterized in that, In the extending direction of the bristle support arm, at least two of the plurality of bristle bundles have different inclination angles, wherein the inclination angle of the bristle bundle refers to the angle between the extending direction of the bristle bundle and the working surface.

4. The side brush structure according to claim 3, characterized in that, In the extending direction of the bristle support arm, the tilt angle of the plurality of bristle bundles gradually decreases.

5. The side brush structure according to claim 1, characterized in that, In the extending direction of the bristle support arm, the length of the plurality of bristle bundles gradually decreases.

6. The side brush structure according to any one of claims 1 to 5, characterized in that, The bristle support arm is rotatable about the central axis of the side brush base; in the rotation direction of the bristle support arm, the bristle bundles near the side brush base are located in front of the bristle bundles away from the side brush base.

7. The side brush structure according to any one of claims 1 to 5, characterized in that, The number of bristle fixing parts is two. One bristle fixing part is located at the end of the bristle support arm away from the side brush base, and the other bristle fixing part is located in the middle of the bristle support arm.

8. The side brush structure according to any one of claims 1 to 5, characterized in that, The bristle support arm is rotatable about the central axis of the side brush base, and the bristle support arm bends in the opposite direction of its rotation. At least one of the plurality of bristle fixing parts is located on the concave surface of the bristle support arm, and / or at least one of the plurality of bristle fixing parts is located on the convex surface of the bristle support arm.

9. The side brush structure according to any one of claims 1 to 5, characterized in that, The bristle support arm is inclined from the side brush base toward the working surface of the bristle bundle.

10. A cleaning device, characterized in that, include: The device body and the side brush structure according to any one of claims 1 to 9, wherein the side brush structure is installed at the bottom of the device body.

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