TWM680263U - Side brush assembly and cleaning device - Google Patents

Abstract

This disclosure discloses a side brush assembly and a cleaning device. The side brush assembly includes: a brush holder, brush arms, and bristles. The brush arms are distributed around the periphery of the brush holder, with the bristles attached to ends of the brush arms that are distal from the brush holder. The brush holder is configured to connect with a driving component of the cleaning device, enabling the driving component to drive the brush holder to rotate. The angles between at least two adjacent brush arms are not equal. As a result, the bristles can be more centrally distributed along part of the periphery of the brush holder, increasing the vacant areas around the brush holder's periphery. During the assembly of the side brush assembly with the main body of the cleaning device, both the brush arms and the bristles can be positioned within the edge projection area of the main body, thereby reducing the overall volume of the cleaning device. This makes the cleaning device easier to store, navigate around obstacles, and dock onto and off a charging station, while also presenting a neater appearance.

Description

Side brush assembly and cleaning equipment

This disclosure relates to the field of smart home technology, and in particular to a side brush assembly and cleaning equipment.

With the continuous development of science and technology and the continuous improvement of people's living standards, cleaning equipment, such as intelligent sweeping robots, has been increasingly entering our daily lives. They can automatically complete the floor cleaning work in the room with a certain degree of artificial intelligence.

Typically, robotic vacuum cleaners use a brushing method to suck up debris from the floor into their dustbin, thus cleaning the floor. To clean areas outside the main brush, robotic vacuum cleaners usually have side brushes to increase the cleaning area. For example, current three-claw side brushes often have some bristles exposed outside the main body. This allows the side brush to increase the cleaning area as it rotates, thus providing an auxiliary cleaning function.

The disclosure introduces a series of simplified concepts, which will be explained in more detail in the specific implementation section. This part of the disclosure is not intended to define the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

An embodiment of the first aspect of this disclosure provides a side brush assembly for a cleaning device, the side brush assembly including: a brush base, brush arms, and bristles, wherein the brush base is configured to be connected to a drive assembly of the cleaning device to drive the brush base to rotate; when the side brush assembly includes multiple brush arms, the multiple brush arms are non-uniformly distributed in the circumference of the brush base; the bristles are connected to the end of the brush arm away from the brush base.

In some embodiments, the side brush assembly includes a first brush arm and a second brush arm, wherein the first brush arm has a first angle between the extension direction of the brush holder and the tangent of the brush holder, and the second brush arm has a second angle between the extension direction of the brush holder and the tangent of the brush holder, and the first angle and the second angle are not equal.

In some embodiments, the side brush assembly includes a first brush arm and a second brush arm, wherein the second brush arm is located on the first brush arm; when the side brush assembly is installed on the cleaning device, the distance between the bristles of the first brush arm and the surface to be cleaned is greater than the distance between the bristles of the second brush arm and the surface to be cleaned.

In some embodiments, the bristles of the first brush arm are longer than the bristles of the second brush arm.

In some implementations, the brush arm is spiral-shaped.

In some embodiments, the brush arm includes a first segment, a second segment, and a third segment that are sequentially arranged and gradually become thinner along the direction from the brush holder to the bristles, wherein the distance between the first segment, the second segment, and the third segment and the brush holder gradually increases along the direction perpendicular to the horizontal plane.

In some embodiments, the projection of the brush arm onto the horizontal plane is an involute.

In some embodiments, the brush arm includes a first end connected to the bristles. The first end includes a first part and a second part, which are disposed opposite to the first part. The second part is located above the first part and protrudes from the first part along the extension direction of the brush arm. The first part is provided with a protruding structure, and the bristles are arranged obliquely downward from the first end relative to the protruding structure.

In some embodiments, the second part is inclined upward relative to the first part in a direction away from the brush holder.

In some implementations, the brush arm is a flexible component.

In some embodiments, the brush holder has a connection hole for connecting to the drive assembly, and the side brush assembly also includes a connector, the connection hole having a section for receiving the connector.

In some embodiments, the bristles extend tangentially to the brush arm, and the angle between the extension directions of two bristles is no more than 120°.

In some embodiments, the two brush arms are located on the same side of the brush holder via the midline of the brush holder's axis of rotation.

In some embodiments, the brush holder is provided with a first installation indicator and the drive assembly is provided with a second installation indicator, the first installation indicator and the second installation indicator matching to indicate that the brush holder is in the installation position.

In some embodiments, when the brush holder is in the installed position, the orthographic projection of the brush bristles on the horizontal plane is located within the orthographic projection area of the edge of the main body of the cleaning equipment on the horizontal plane.

In some embodiments, a first installation indicator is disposed on the wall of the connecting hole, wherein one of the first installation indicator and the second installation indicator is provided as a recess and the other is provided as a protrusion.

In some embodiments, the connection hole includes a first hole segment and a second hole segment along the axial direction of the brush holder. The first hole segment is located above the second hole segment and matches the drive assembly. A first installation indicator is disposed in the first hole segment, and a connector passes through the second hole segment to connect with the drive assembly.

In some embodiments, the connection hole also includes a third section located below the second section, with the end of the connector away from the drive assembly accommodated within the third section.

In some embodiments, the brush arm includes a second end connected to the brush holder, which is injection molded over the outside of the second end.

In some embodiments, when the side brush assembly is installed in the cleaning device, the distance between the second end and the surface to be cleaned is greater than the distance between the first end and the surface to be cleaned.

In some embodiments, the stiffness of the brush holder is greater than the stiffness of the brush bristles.

In some embodiments, the cleaning equipment includes: a drive assembly configured to drive the brush holder to switch between an installed position and a working position; or the cleaning equipment includes: a drive assembly and a telescopic assembly, wherein the telescopic assembly is connected to the brush holder to drive the brush holder to switch between an installed position and a working position.

In some embodiments, the brush holder is driven such that, when in the installed position, the side brush assembly as a whole can retract into the projection area of the edge of the main body of the cleaning device in the horizontal plane; and when in the working position, the bristles can extend beyond the projection area of the main body in the horizontal plane.

An embodiment of the second aspect of this disclosure provides a cleaning device, including: a main body, and a side brush assembly of any of the first aspects, the side brush assembly being located at the bottom of the main body.

The side brush assembly and cleaning device disclosed herein include a brush base, brush arms, and bristles. The brush base is connected to a drive assembly, enabling the drive assembly to drive the brush base to rotate relative to the main body, thereby causing the brush arms and bristles to rotate synchronously, achieving the auxiliary cleaning function of the side brush assembly. Because the brush arms are unevenly distributed around the brush base, compared to the symmetrical structure of the three-claw side brush in related technologies, the bristles are more concentrated on one side of the brush base, while the other side is empty. Furthermore, the empty area around the brush base is larger than that of the three-claw side brush. When encountering objects that are prone to tangling, such as hair, the brush holder of the disclosed side brush assembly has a large open area around it. As these objects move with the brush bristles, they are more easily guided to the open area rather than tightly wrapped around the brush arm and bristles, thus greatly reducing the risk of tangling.

The above description is only an overview of the technical solution disclosed herein. In order to better understand the technical means disclosed herein and to implement them in accordance with the contents of the specification, and in order to make the above and other purposes, features and advantages of this disclosure more obvious and easy to understand, the specific implementation methods of this disclosure are given below.

This disclosure is based on and claims priority to Chinese Patent Application No. 202421459418.4, filed on June 25, 2024, the entire contents of which are incorporated herein by reference.

Numerous specific details are provided in the following description to offer a more thorough understanding of the technical solutions offered in this disclosure. However, it will be apparent to those skilled in the art that the technical solutions offered in this disclosure can be implemented without one or more of these details.

It should be noted that the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit the exemplary embodiments according to this disclosure. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms “comprising” and/or “including” are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and/or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and/or combinations thereof.

Exemplary embodiments according to this disclosure will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make this disclosure complete and to fully convey the ideas of these exemplary embodiments to those skilled in the art.

As shown in Figures 1 to 7, an embodiment of the first aspect of this disclosure provides a side brush assembly 100, and an embodiment of the second aspect of this disclosure provides a cleaning device, wherein the side brush assembly 100 is applied to the cleaning device, wherein the cleaning device can be a sweeping robot, a sweeping and mopping robot, or other cleaning robot that meets the requirements.

Specifically, cleaning equipment includes, but is not limited to, a main body, a cleaning system, and a drive system. These systems coordinate with each other to enable the cleaning equipment to move autonomously and perform its cleaning function. The functional components constituting these systems are integrated within the main body of the cleaning equipment. It is understood that the cleaning equipment can be a self-moving cleaning device, which is a device that automatically performs cleaning operations in a designated area without user intervention.

The main body includes a front part and a rear part, and may have an approximately circular shape or other shapes, including but not limited to an approximately D-shaped shape with a front and rear circle and a rectangular or square shape with a front and rear.

The cleaning system includes a dry cleaning system, in which the cleaning equipment can be a robot vacuum cleaner; or the cleaning system includes both wet and dry cleaning systems, in which the cleaning equipment can be a combined sweeper and mop.

The dry cleaning system may include a roller brush, a dustbin, and a vacuum fan. The roller brush, which has some interference with the ground, sweeps up the debris on the ground and carries it to the suction port between the roller brush and the dustbin. Then, the suction fan generates a powerful gas that passes through the dustbin and is drawn into the dustbin.

Furthermore, the cleaning equipment and cleaning system provided in this disclosure embodiment may also include a side brush assembly 100, which is rotatably connected to the main body for moving debris and other contaminants outside the roller brush area into the roller brush area of the cleaning system.

Currently, side brush components in related technologies are typically designed with a three-pronged structure. This means the side brush assembly usually includes three brush arms and three bristles. The brush arms are symmetrically arranged around the brush holder. This symmetrical structure easily leads to fibers and other easily entangled objects becoming tightly wrapped around the brush arms, affecting the normal rotation of the side brush. During the assembly process of these side brush components, the three-pronged structure exposes one bristle to the outside of the main body. As the side brush rotates, the three bristles sequentially rotate to the outside of the main body to increase the cleaning area and achieve an auxiliary cleaning function. However, this design means that even when the side brush assembly is not in use, one bristle remains exposed to the outside of the main body, making the overall size of the cleaning equipment larger and less convenient for storage and movement.

In view of this, as shown in Figures 1, 2, and 3, the side brush assembly 100 provided in the first aspect embodiment of this disclosure includes: a brush holder 110, brush arms 120, and bristles 130. The brush holder 110 is configured to be connected to a drive assembly of a cleaning device so that the drive assembly drives the brush holder to rotate. There may be multiple brush arms 120, and when the side brush assembly includes multiple brush arms 120, the multiple brush arms 120 are non-uniformly distributed in the circumferential direction of the brush holder 110. The bristles 130 are connected to the end of the brush arm 120 away from the brush holder 110.

The drive assembly can be installed on the main body of the cleaning equipment. The brush holder 110 is connected to the drive assembly, so that the drive assembly can drive the brush holder 110 to rotate relative to the main body. Since the bristles 130 are connected to the brush holder 110 through the brush arm 120, the rotation of the brush holder 110 can drive the brush arm 120 and the bristles 130 to rotate synchronously. This allows the bristles 130 to guide debris and other impurities outside the roller brush area into the roller brush area of the cleaning system, thereby achieving an auxiliary cleaning effect and improving the cleaning effect of the cleaning equipment.

In this embodiment, when the side brush assembly 100 includes multiple brush arms 120, the multiple brush arms 120 are unevenly distributed circumferentially around the brush holder 110, that is, the brush arms 120 have an asymmetrical structure circumferentially around the brush holder 110. In some embodiments, when the multiple brush arms 120 include at least a first brush arm and a second brush arm, the first brush arm has a first angle between its extension direction relative to the brush holder and the tangent to the brush holder, and the second brush arm has a second angle between its extension direction relative to the brush holder and the tangent to the brush holder, and the first angle and the second angle are not equal. It is understood that the bristles 130 are correspondingly arranged with the brush arms 120, and the number of bristles 130 is the same as the number of brush arms 120, that is, the bristles 130 have an asymmetrical structure circumferentially around the brush holder 110. This arrangement allows the bristles 130 to be more concentratedly distributed around part of the brush holder 110, while the other part of the brush holder 110 is empty. For the same number of brush arms 120, the brush arms 120 have an asymmetrical structure in the circumferential direction of the brush holder 110 compared to a symmetrical structure. The empty area around the brush holder 110 with the brush arms 120 having an asymmetrical structure in the circumferential direction of the brush holder 110 is larger. Therefore, when encountering objects that are prone to entanglement, such as hair, the brush holder of this disclosed side brush assembly has a large open area around it. These easily entangled objects are more easily guided to this open area during the movement of the bristles, rather than tightly entangled on the brush arm and bristles, thus greatly reducing the risk of entanglement. Specifically, when the bristles capture objects such as hair during rotation, as the brush holder continues to rotate, the hair and other objects will gradually move towards the open area of the brush holder under the influence of centrifugal force and inertia. Because of the large open area and the absence of brush arms and bristles, hair and other objects are unlikely to form a tight entanglement structure, thus greatly reducing the risk of entanglement. Furthermore, during the assembly of the side brush assembly 100 with the main body, the relative positions of the brush arms 120, bristles 130, and the main body can be adjusted so that the open portion around the brush holder 110 faces the outer edge of the nearby main body. This ensures that the brush arms 120 and bristles 130 are both located within the projection area of the main body's edge, i.e., the orthographic projection of the brush arms 120 and bristles 130 on the horizontal plane. Located in the area projected onto the horizontal plane at the edge of the main body, compared to the side brushes in related technologies where the three-claw structure brush arms are symmetrically arranged around the brush holder and some bristles are exposed on the outside of the main body, this reduces the space occupied by the cleaning equipment, making it easier to store, avoid obstacles, and install/remove from the pole. At the same time, it makes the appearance neater and improves market competitiveness.

Specifically, in the related technology, the three-claw structure of the side brush usually has three brush arms in a symmetrical structure around the brush holder, that is, the angle between the midlines of two adjacent brush arms is 120°. Therefore, ignoring the 120 width of the brush arm, the area angle of the space around the brush holder 110 is about 120°. In this embodiment, the brush arms 120 are asymmetrically arranged around the brush holder 110. For example, if the three brush arms 120 are asymmetrically arranged around the brush holder 110, the angle between the areas of the space around the brush holder 110 will be greater than 120° if the width of the brush arms 120 is ignored. Alternatively, if the number of brush arms 120 is greater than three or less than three, the position of the brush arms 120 around the brush holder 110 can be reasonably set so that the angle between the areas of the space around the brush holder 110 is greater than 120° if the width of the brush arms 120 is ignored. In this way, compared with the three-claw structure in related technologies, a larger open area will be formed around the brush holder, making it easier for easily entangled objects to be guided to the open area during the movement of the bristles, rather than tightly wrapped around the brush arm and bristles. In addition, during the assembly of the side brush assembly 100 with the main body, the relative positions of the brush arm 120, bristles 130 and the main body can be reasonably adjusted so that the open area around the brush holder 110 faces the outer edge of the adjacent part of the main body, ensuring that the brush arm 120 and bristles 130 are both located within the edge projection area of the main body, and the bristles 130 are not exposed to the outside of the main body, reducing the space occupied by the cleaning equipment. Understandably, as the brush holder 110 rotates with the drive assembly, the bristles 130 extend beyond the projected area of the main body edge to increase the cleaning range and achieve the function of auxiliary cleaning.

In some possible embodiments provided in this disclosure, the number of brush arms 120 is set to one or two. It is understood that the number of bristles 130 is the same as the number of brush arms 120, that is, the number of bristles 130 is one or two. Compared to the three-claw structure of the side brush in the related technology, this configuration allows the bristles 130 to be more concentratedly distributed around part of the brush holder 110, while the other part of the brush holder 110 is empty. The empty area around the brush holder 110 is larger than that of the three-claw structure side brush. Therefore, when encountering objects that are easily tangled, such as hair, the larger empty area around the brush holder of the side brush assembly of this disclosure makes it easier for these easily tangled objects to be guided to the empty area during the movement of the bristles, rather than tightly tangling on the brush arm and bristles, thus greatly reducing the risk of tangling. Furthermore, during the assembly of the side brush assembly 100 with the main body, the relative positions of the brush arm 120, the bristles 130, and the main body can be reasonably adjusted so that the empty portion around the brush holder 110 faces the outer edge of the nearby part of the main body. This ensures that the brush arm 120 and the bristles 130 are both located within the edge projection area of the main body. In other words, the projection of the brush arm 120 and the bristles 130 on the horizontal plane is located within the area of the projection of the main body on the horizontal plane. Compared with the side brush with a three-claw structure in related technologies where the bristles are exposed on the outside of the main body, this reduces the space occupied by the cleaning equipment, making it easier to store, avoid obstacles, and install/install. At the same time, it results in a neater appearance and improves market competitiveness.

Specifically, in the three-claw structure side brush of the related technology, the three brush arms 120 are usually evenly distributed around the brush base 110, that is, the angle between the midlines of two adjacent brush arms is 120°. Therefore, ignoring the width of the brush arm 120, the area angle of the surrounding space of the brush base 110 is approximately 120°. However, in this embodiment, when there is only one brush arm 120, ignoring the width of the brush arm 120, the area angle of the surrounding empty space of the brush base 110 is approximately 360°, which is obviously much larger than the area angle of the surrounding space of the brush base of the three-claw structure side brush. When there are two brush arms 120, if the two brush arms 120 are arranged around the brush holder 110 with a maximum angle of 180°, the angle of the area of the empty part around the brush holder 110 is about 180°, which is obviously larger than the angle of the area of the empty part around the brush holder 110 of the three-claw side brush. Therefore, since the area of the space portion around the brush base 110 of the side brush assembly 100 in this embodiment has a large angle, when encountering objects that are prone to tangling, such as hair, these objects are more easily guided to the open area during the movement of the brush bristles, rather than tightly tangled on the brush arm and bristles, thereby greatly reducing the risk of tangling. Furthermore, during the assembly of the side brush assembly 100 with the main body, the relative positions of the brush arm 120, bristles 130, and the main body can be adjusted so that the empty portion around the brush holder 110 faces the outer edge of the adjacent part of the main body. This ensures that the brush arm 120 and bristles 130 are both located within the edge projection area of the main body, and the bristles 130 are not exposed outside the main body, reducing the space occupied by the cleaning equipment. Understandably, as the brush holder 110 rotates with the drive assembly, the bristles 130 will extend beyond the edge projection area of the main body to increase the cleaning range and achieve the function of auxiliary cleaning.

In some possible embodiments provided in this disclosure, the brush holder 110 is provided with a first installation indicator 111, and the drive component is provided with a second installation indicator. The first installation indicator 111 and the second installation indicator match to indicate that the brush holder 110 is in the installation position.

In this embodiment, by providing a first installation indicator 111 on the brush holder 110 and a second installation indicator on the drive assembly, during the process of connecting and assembling the side brush assembly 100 and the drive assembly, when the first installation indicator 111 matches the second installation indicator, the brush holder 110 is indicated to be in the installation position, and the brush holder 110 can be connected to the drive assembly in this position to realize the connection and assembly of the side brush assembly 100 and the drive assembly.

Furthermore, when the brush holder 110 is in the installed position, the bristles 130 are located within the edge projection area of the main body of the cleaning equipment. That is, the orthographic projection of the bristles 130 on the horizontal plane is within the orthographic projection area of the edge of the main body of the cleaning equipment. In other words, the bristles 130 do not extend beyond the edge projection area of the main body. Therefore, unlike related technologies where some bristles are exposed... Compared to the exterior of the main body, the overall volume of the cleaning equipment is reduced when the brush holder 110 is in the installation position, which in turn reduces the space occupied by the cleaning equipment when the brush holder 110 is in the installation position. This makes the cleaning equipment easier to store, easier to avoid obstacles, and easier to install and remove from the poles when the brush holder 110 is in the installation position. At the same time, it makes the appearance neater and improves market competitiveness.

When the brush holder 110 is in the installation position, the brush bristles 130 are located within the projection area of the edge of the main body of the cleaning equipment. This can be understood as the orthographic projection of the brush bristles 130 on the horizontal plane being located within the orthographic projection area of the edge of the main body on the horizontal plane. The brush holder 110 also includes a working position where some of the bristles 130 are located outside the main body. That is, when the brush holder 110 is in the working position, at least some of the bristles 130 are located within the edge projection area of the main body of the cleaning equipment. This can be understood as the orthographic projection of some of the bristles 130 on the horizontal plane being located outside the area of the orthographic projection of the main body on the horizontal plane; or, the orthographic projection of all the bristles 130 on the horizontal plane being located outside the area of the orthographic projection of the main body on the horizontal plane. In this example, the side brush assembly 100 can be configured as a telescopic structure relative to the main body, so that when the brush holder 110 is in the installation position, the entire side brush assembly 100 can be retracted into the edge projection area of the main body, and when the brush holder 110 is in the working position, all the bristles 130 can extend beyond the edge projection area of the main body. Specifically, when the brush holder 110 is in the working position, the cleaning equipment can use the side brush assembly 100 for auxiliary cleaning. When the brush holder 110 is in the installation position, the cleaning equipment can perform auxiliary cleaning without using the side brush assembly 100. The cleaning equipment can be in the storage position, performing obstacle avoidance operations, pile loading and unloading operations, and auxiliary operations such as charging, dust collection, and water replenishment on the pile. The pile mentioned in this application can be understood as a charging pile, dust collection pile, base station, etc., used in conjunction with the cleaning equipment.

Furthermore, by providing a first installation indicator 111 on the brush holder 110, since the relative positions of the first installation indicator 111 and the brush arm 120 are known during the design process, and the relative positions of the bristles 130 and the brush arm 120 are also known during the design process, the positions of the brush arm 120 and the bristles 130 relative to the main body can be restricted by matching the first installation indicator 111 with the second installation indicator on the drive assembly, so that when the brush holder 110 is in the installation position, the bristles 130 are located within the edge projection area of the main body.

Furthermore, the first installation indicator 111 and the second installation indicator cooperate to limit the rotation of the brush holder 110 relative to the main body, ensuring that the brush holder 110 remains in the installation position relative to the main body when the drive assembly is not in operation. Specifically, the drive assembly can be a motor, and the output shaft of the motor is connected to the brush holder 110. The motor can be equipped with a locking mechanism to ensure that the output shaft does not rotate when the motor is not in operation. This ensures that after the output shaft and the brush holder 110 are in the installation position through the cooperation of the first installation indicator 111 and the second installation indicator, the brush holder 110 can remain in the installation position, preventing the brush holder 110 from rotating relative to the output shaft and causing the bristles 130 to extend beyond the projection area of the main body edge when the motor is not in operation.

As shown in Figures 1, 2, 3 and 4, in some possible embodiments provided in this disclosure, the brush holder 110 has a connection hole 112 for connecting with the drive component. A first installation indicator 111 is disposed on the wall of the connection hole 112. Therefore, when the brush holder 110 is connected to the drive component through the connection hole 112, the first installation indicator 111 on the wall of the connection hole 112 matches the second installation indicator on the drive component, which plays a limiting and foolproof role and can accurately and conveniently indicate that the brush holder 110 is in the installation position.

In this design, one of the first installation indicator 111 and the second installation indicator is a recess, and the other is a protrusion. The recess and protrusion are easy to manufacture and implement, which helps reduce the overall manufacturing cost of the side brush assembly 100. At the same time, the recess and protrusion provide good positioning and error prevention, and are easy to assemble, enabling accurate, convenient, and quick indication of the brush holder 110's installation position, making it suitable for widespread application.

Specifically, the first installation indicator 111 can be a protrusion, and the second installation indicator can be a recess; alternatively, the first installation indicator 111 can be a recess, and the second installation indicator can be a protrusion. It is understood that in some examples, the first installation indicator 111 may include both a recess and a protrusion, and the second installation indicator may also include corresponding protrusions and recesses, thereby satisfying the need for different structures for the first installation indicator 111 and the second installation indicator.

Furthermore, the drive assembly includes a motor, the output shaft of which is connected to the brush holder 110 via a connecting hole 112, meaning that the second installation indicator can be disposed on the output shaft. Specifically, the first installation indicator 111 can be a protruding structure 122, and the second installation indicator can be a recessed structure.

As shown in Figures 3 and 4, in some possible embodiments provided in this disclosure, the side brush assembly 100 further includes: a connector, a connecting hole 112 comprising a first hole segment 1121 and a second hole segment 1122 along the axial direction of the brush holder 110, the first hole segment 1121 being located above the second hole segment 1122 and matching the drive assembly, a first installation indicator 111 being disposed in the first hole segment 1121, and the connector passing through the second hole segment 1122 and connecting to the drive assembly. The axial direction of the brush holder 110 can be as indicated by arrow Z in Figure 4.

Therefore, during the assembly of the side brush assembly 100 and the drive assembly, the first hole segment 1121 is matched with the drive assembly for initial pre-positioning. Then, the first installation indicator 111 of the first hole segment 1121 is matched with the second installation indicator on the drive assembly to achieve a limiting and foolproof function, accurately positioning the brush holder 110 and the drive assembly. This ensures that the brush holder 110 can be accurately and quickly placed in the installation position, guaranteeing that the bristles 130 are located within the edge projection area of the main body. Then, the connecting piece passes through the second hole segment 1122 to connect with the drive assembly, thus achieving a reliable connection between the brush holder 110 and the drive assembly. This simple operation improves the assembly efficiency and accuracy of the brush holder 110 and the drive assembly.

Specifically, the first hole segment 1121 can be polygonal, and the output shaft of the drive component can also be polygonal. Thus, the combination of the polygonal hole and the polygonal shaft provides a good limiting function, effectively limiting the rotation of the brush holder 110 relative to the output shaft and ensuring that the brush holder 110 and the output shaft rotate synchronously. Alternatively, the first hole segment 1121 can be hexagonal, and the output shaft of the drive component can also be hexagonal. It is understood that the first hole segment 1121 can also be other shapes.

The opening size of the first hole section 1121 can be larger than the opening size of the second hole section 1122. For example, the connecting part can be a bolt. The second hole section 1122 can be circular. The opening size of the first hole section 1121 can be understood as the radial dimension of the second hole section 1122. The output shaft of the drive component has a threaded hole at its end. The bolt passes through the second hole section 1122 and connects with the threaded hole, thereby connecting the output shaft and the brush holder 110.

As shown in Figure 4, in some possible embodiments provided in this disclosure, the connecting hole 112 further includes a third hole section 1123 located below the second hole section 1122, and the end of the connector away from the drive assembly is accommodated in the third hole section 1123.

In this embodiment, the third hole 1123 provides space for the connector to be located away from the end of the drive assembly, so that the connector does not protrude from the bottom of the brush holder 110. This reduces or avoids the problem that hair, thread, and other debris can easily get tangled on the connector, making it difficult to disassemble or causing it to jam. This reduces the interference of hair, thread, and other debris on the connector, allowing the connector to be disassembled quickly and conveniently, thereby improving the disassembly and maintenance efficiency of the side brush assembly 100 and ensuring that the side brush assembly 100 can work reliably.

Specifically, the opening size of the third hole 1123 can be larger than the opening size of the second hole 1122. The second hole 1122 can be circular, and the opening size of the third hole 1123 can be understood as the radial dimension of the second hole 1122. The connecting piece can be a bolt, with the bolt head housed within the third hole 1123, preventing the bolt from protruding from the bottom of the brush holder 110 and reducing or preventing the bolt head from becoming entangled in hair.

As shown in Figures 1, 2 and 5, in some possible embodiments provided in this disclosure, the number of brush arms 120 is two, including a first brush arm and a second brush arm. The first brush arm has a first angle between its extension direction relative to the brush holder and the tangent of the brush holder, and the second brush arm has a second angle between its extension direction relative to the brush holder and the tangent of the brush holder. The first angle and the second angle are not equal.

In other embodiments, the second brush arm is located on top of the first brush arm. When the side brush assembly is installed in the cleaning device, the distance between the bristles of the first brush arm and the surface to be cleaned is greater than the distance between the bristles of the second brush arm and the surface to be cleaned. In this embodiment, the length of the bristles of the first brush arm is greater than the length of the bristles of the second brush arm.

In some embodiments, the brush arm 120 is spiral-shaped, and the bristles 130 correspond to the brush arm 120, that is, there are two bristles 130 connected to the corresponding brush arm 120. The bristles 130 extend along the tangential direction of the brush arm 120, and the angle between the extension directions of the two bristles 130 is not greater than 120°.

The two brush arms 120 and the two bristles 130 ensure that the side brush assembly 100 has a large cleaning range, which helps to ensure a good cleaning effect.

The angle between the extending directions of the two bristles 130 can be as shown by angle α in Figure 5, i.e., α is less than or equal to 120°. This allows the two brush arms 120 and the two bristles 130 to be relatively concentrated on a portion of the periphery of the brush holder 110, while the other portion of the periphery of the brush holder 110 is empty, without brush arms 120 or bristles 130. By appropriately setting the installation position of the brush holder 110, when the brush holder 110 is in the installation position, the brush arms 120 and bristles 130 are arranged close to the interior of the main body, while the empty portion of the periphery of the brush holder 110 faces the exterior of the main body, ensuring that the two bristles 130 are located inside the edge projection of the main body. Furthermore, the brush holder 110 can be positioned at the bottom of the main body near the edge to ensure that when the brush holder 110 is in the installation position, the bristles 130 are located within the edge projection area of the main body, and when the brush holder 110 is in the working position, the bristles 130 can smoothly extend to the outside of the main body, ensuring a larger cleaning area and facilitating the switching between the installation position and the working position of the brush holder 110.

Furthermore, since the side brush assembly in related technologies is usually installed at the bottom of the main body near the edge, if there are three brush arms, one bristle usually extends beyond the edge projection area of the main body, making the overall size of the cleaning equipment large, inconvenient to store and move, and untidy in appearance. In this embodiment, by setting the side brush assembly 100 as two brush arms 120, and the bristles 130 extending along the tangential direction of the brush arm 120, with the angle between the extension directions of the two bristles 130 not exceeding 120°, it is possible to install the side brush assembly 100 in this embodiment without changing the original structure of the cleaning equipment, by matching the first installation indicator 111 and the second installation indicator of the drive assembly. By aligning the brush holder 110 with the installation position, the brush bristles 130 are ensured to be located within the edge projection area of the main body, reducing the overall volume of the cleaning equipment and thus reducing the space occupied by the cleaning equipment. This makes the cleaning equipment easy to store, easy to move around obstacles, and easy to load and unload when the brush holder 110 is in the installation position. At the same time, it makes the appearance of the cleaning equipment more tidy and improves its market competitiveness.

Specifically, the angle α between the extending directions of the two bristles 130 can be 120°, 110°, 100°, 90°, 80°, or other angles. By reasonably setting the angle α between the extending directions of the two bristles 130, when the brush holder 110 is in the installation position, the two bristles 130 can be positioned more comprehensively within the edge projection area of the main body. At the same time, it ensures that the two bristles 130 have a large radiation range, so as to ensure a good auxiliary cleaning effect when the brush holder 110 is in the working position.

As shown in Figures 1, 5, and 6, in some possible embodiments provided in this disclosure, the projection of the brush arm 120 onto the horizontal plane is an involute. An involute is the trajectory of a point K on a circle when the line rolls purely on it. In this embodiment, the brush arm 120 is spiral-shaped, and the projection of the spiral brush arm 120 onto the horizontal plane is an involute. This can be understood as follows: the brush holder 110 is cylindrical, and the axis of the brush holder 110 can be considered perpendicular to the horizontal plane. The brush arms 120 are spirally distributed along the axis of the brush holder 110. The projection of the brush arm 120 onto the horizontal plane coincides with the portion of the trajectory of the point K on the line when the line rolls purely on the cylindrical brush holder 110, which connects to the brush holder 110. Pure rolling refers to rolling where the contact point between a rigid body and a plane is relatively stationary at the instant of contact, without any relative sliding; that is, rolling with zero relative velocity. When the plane is a fixed plane, the contact point is the instantaneous center of velocity of the two objects.

The horizontal plane can be considered as the axis of rotation perpendicular to the brush holder 110. Since the brush arm 120 is spiral-shaped, its projection on the horizontal plane is a spiral involute. Thus, during the rotation of the brush holder 110, hair, lint, and other debris entangled on the brush arm 120 will move along the rotating, spiral shape and become tightly wrapped around it. As the brush holder 110 continues to rotate, the debris entangled around the brush arm 120... The force will increase. By setting the brush arm 120 as an elastic component, when the entanglement force of debris on the brush arm 120 reaches the limit that the elastic brush arm 120 can withstand, the brush arm 120 will undergo elastic deformation, which will bounce off the debris entangled on the brush arm 120, reducing the possibility of hair, lint, and other debris getting entangled. This can reduce the frequency of users cleaning the side brush assembly 100, extend the replacement cycle of the side brush assembly 100, reduce usage costs, and improve the user experience. In some embodiments, the brush arm 120 is set as a flexible component.

As shown in Figure 5, in some possible embodiments provided in this disclosure, the two brush arms 120 are located on the same side of the brush holder 110 through the midline of the axis of rotation of the brush holder 110. This arrangement ensures that the two brush arms 120 are relatively concentrated around the brush holder 110, while a large area around the brush holder 110 is not equipped with brush arms 120, so as to ensure that the original structure of the cleaning equipment is not changed. When the side brush assembly 100 is connected to the drive assembly, when the brush holder 110 is in the installation position, the two bristles 130 can be effectively located within the edge projection area of the main body, while when the brush holder 110 is in the working position, some of the bristles 130 can be located outside the edge projection area of the main body.

As shown in Figure 5, in some possible embodiments provided in this disclosure, the angle between the extending direction of the bristles 130 and the extending direction of the connected brush arm 120 relative to the extending direction of the brush base 110 is not greater than 120°, that is, the angle between the extending direction of the bristles 130 and the extending direction of the connected brush arm 120 relative to the extending direction of the brush base 110 is less than or equal to 120°. Specifically, the angle between the extending direction of the bristles 130 and the extending direction of the connected brush arm 120 relative to the extending direction of the brush base 110 can be as shown by angle β in Figure 5, that is, β is less than or equal to 120°. Specifically, β can be 120°, 110°, 100°, 90°, 80°, or other angles.

This arrangement ensures that the two brush arms 120 and the two bristles 130 are relatively concentrated on a portion of the periphery of the brush holder 110, while the other portion of the periphery of the brush holder 110 is not equipped with brush arms 120. This allows the brush holder 110 to rotate to different positions relative to the main body, so that the two bristles 130 can be effectively positioned within the edge projection area of the main body to place the brush holder 110 in the installation position, or, alternatively, some of the bristles 130 can be positioned outside the edge projection area of the main body to place the brush holder 110 in the working position. Therefore, without changing the original structure of the cleaning equipment, the side brush assembly 100 provided in this embodiment can be connected to the drive assembly. By reasonably limiting the installation position of the brush holder 110 through the first installation indicator 111 and the second installation indicator, it can be ensured that when the brush holder 110 is in the installation position, the bristles 130 are located within the edge projection area of the main body. The brush holder 110 is rotated by the drive assembly, thereby realizing the switching between the installation position and the working position of the brush holder 110. The operation is simple and easy to implement.

As shown in Figures 6 and 7, in some possible embodiments provided in this disclosure, the brush arm 120 includes a first end 121 connected to the bristles 130. A protrusion 122 is provided at the bottom of the first end 121, and the bristles 130 are arranged obliquely downwards from the first end 121 relative to the protrusion 122. This arrangement ensures that the bristles 130 have sufficient interference force on the surface to be cleaned, guaranteeing a good cleaning effect. Simultaneously, this arrangement positions the protrusion 122 below the portion where the bristles 130 connect to the first end 121, preventing debris from moving or darting along the brush arm 120 towards the brush holder 110 from the downward direction of the first end 121. In other words, the protruding structure 122 can restrict the movement of hair, thread, and other debris along the brush arm 120 from the first end 121 toward the brush holder 110, thereby reducing the likelihood of hair, thread, and other debris approaching the brush holder 110 and entering the drive assembly through the brush arm 120 and brush holder 110, which could lead to drive assembly failure. This, in turn, helps to extend the service life of the drive assembly and improve its reliability.

Specifically, the drive component can be a motor, and the brush holder 110 is connected to the output shaft of the motor. When the side brush assembly 100 is entangled with hair, filaments, or other debris, if the hair, filaments, or other debris wind upwards along the circumferential sidewall of the brush holder 110 and become entangled on the output shaft, the output shaft may become stuck, thus affecting the reliability of the motor. This application, through the protrusion structure 122, can greatly reduce the occurrence of this situation, thereby extending the service life of the motor.

As shown in Figures 6 and 7, in some possible embodiments provided in this disclosure, the first end portion 121 includes a first portion 1211 and a second portion 1212. The first portion 1211 and the second portion 1212 are disposed vertically opposite each other, with the second portion 1212 located above the first portion 1211 and protruding from the first portion 1211 along the extending direction of the brush arm 120. The first portion 1211 is provided with a protruding structure 122 and connected to the bristles 130. The vertical direction is indicated by arrow Z in Figure 7.

In other words, the second part 1212 is located above the bristles 130, and the protruding structure 122 is located below the bristles 130. Thus, the second part 1212 forms a bristle-like structure that can prevent debris from moving along the bristles 130 to the brush arm 120 from above the bristles 130. Therefore, by cooperating with the second part 1212 and the protruding structure 122, debris moving along the bristles 130 towards the brush arm 120 can be stopped at the first end 121 from both above and below the bristles 130. This further limits the possibility of debris such as hair and thread moving along the bristles 130 through the first end 121 to the brush arm 120, thereby reducing the possibility of the brush arm 120 being entangled by hair and thread. This, in turn, reduces the likelihood of debris such as hair and thread approaching the brush holder 110, and reduces the possibility of debris entering the drive assembly through the brush arm 120 and brush holder 110, causing drive assembly failure. This, in turn, helps to extend the service life of the drive assembly and improve the reliability of the drive assembly.

As shown in Figures 6 and 7, in some possible embodiments provided in this disclosure, the second portion 1212 is inclined upward relative to the first portion 1211 in a direction away from the brush holder 110. That is, the gap between the second portion 1212 and the bristles 130 gradually increases from the direction away from the brush holder 110 to the direction closer to the brush holder 110. This arrangement guides the movement of debris along the bristles 130, allowing the debris to be smoothly accommodated in the gap between the second portion 1212 and the bristles 130, reducing the possibility of debris moving from above the second portion 1212 to the brush arm 120, and effectively preventing hair and thread-like debris from getting tangled in the brush arm 120.

As shown in Figure 4, in some possible embodiments provided in this disclosure, the brush arm 120 includes a second end 123 connected to the brush holder 110. The brush holder 110 is injection molded and wrapped around the second end 123. That is, the brush holder 110 and the brush arm 120 can be manufactured by injection molding (secondary injection molding). This ensures the reliability of the connection between the brush arm 120 and the brush holder 110, and at the same time, it is easy to process and easy to produce.

Furthermore, when the side brush assembly is installed in the cleaning equipment, the distance between the second end and the surface to be cleaned is greater than the distance between the first end and the surface to be cleaned.

Furthermore, both the brush arm 120 and the brush holder 110 are made of plastic, which is low in cost, easy to mold, convenient to process, and suitable for widespread application.

The brush holder 110 has a higher hardness than the brush arm 120. For example, the brush holder 110 is made of hard rubber, while the brush arm 120 is made of soft rubber. This ensures that the brush holder 110 has sufficient hardness and strength, while the brush arm 120 has sufficient strength and elasticity. Specifically, the elasticity of the brush arm 120 is greater than that of the brush holder 110.

As shown in Figure 5, in some possible embodiments provided in this disclosure, the brush arm 120 includes a first segment 124, a second segment 125, and a third segment 126 arranged sequentially along the direction from the brush base 110 to the bristles 130, wherein the first segment 124, the second segment 125, and the third segment 126 gradually become thinner. Along the direction perpendicular to the horizontal plane, the distance between the first segment 124, the second segment 125, the third segment 126 and the brush base gradually increases.

The first segment 124, the second segment 125, and the third segment 126 gradually become thinner. This can be understood as the width of the projections of the first segment 124, the second segment 125, and the third segment 126 in the horizontal plane gradually decreasing, or, simultaneously, the dimensions of the first segment 124, the second segment 125, and the third segment 126 in the vertical direction gradually decreasing. Specifically, the width of the projection of the brush arm 120 in the horizontal plane can be represented by the distance D in Figure 5, and the dimension of the brush arm 120 in the vertical direction can be the dimension of the brush arm 120 in the Z-axis direction.

This design ensures that the first segment 124, connected to the brush holder 110, has sufficient strength, allowing for a reliable connection between the brush holder 110 and the brush arm 120. Simultaneously, it ensures that the third segment 126, connected to the bristles 130, has sufficient elasticity, thereby providing sufficient contact force between the bristles 130 and the surface to be cleaned, ensuring a good cleaning effect. The second segment 125, located between the first segment 124 and the third segment 126, provides a transitional connection between them, allowing the strength of the brush arm 120 to gradually decrease and its elasticity to gradually increase from the first segment 124 to the third segment 126, ensuring that the brush arm 120 possesses both good strength and elasticity. It is understandable that when the brush holder 110 rotates, the starting point of the deformation position of the brush arm 120 can be located at the second segment 125 of the brush arm 120.

An embodiment of the second aspect of this disclosure, as shown in Figure 8, provides a cleaning device 300, including a main body 200 and a side brush assembly 100 of any embodiment in the first aspect, the side brush assembly 100 being located at the bottom of the main body 200. Since the cleaning device includes the side brush assembly 100 of any of the aforementioned embodiments, it possesses all the technical effects of the aforementioned side brush assembly 100, which will not be elaborated upon here.

Furthermore, the cleaning equipment also includes a drive assembly connected to the brush holder 110 to drive the brush holder 110 to rotate.

In one example, the drive assembly is configured to drive the brush holder 110 to switch between an installed position and a working position to enable the side brush assembly 100 to assist in cleaning. That is, the drive assembly drives the brush holder 110 to rotate, thus switching between the installed and working positions. Specifically, when the brush holder 110 is in the working position, some of the bristles 130 extend beyond the edge projection area of the main body.

In another example, the cleaning device also includes a telescopic assembly connected to the brush holder 110 to drive the brush holder 110 to switch between an installed position and a working position. In the installed position, the bristles 130 are located within the projected edge area of the main body, while in the working position, some of the bristles 130 are located outside the projected edge area of the main body. That is, the telescopic assembly drives the brush holder 110 to extend or retract relative to the main body to switch the brush holder 110 between the installed and working positions. Understandably, in this case, the drive assembly is used to drive the brush holder 110 to rotate, such as driving the brush holder 110 to rotate when it is in the working position, or driving the brush holder 110 to rotate when it is in the installed position.

This disclosure has been illustrated by the above embodiments; however, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this disclosure to the scope of the described embodiments. Furthermore, those skilled in the art will understand that this disclosure is not limited to the above embodiments, and many variations and modifications can be made based on the teachings of this disclosure, all of which fall within the scope of protection claimed by this disclosure. The scope of protection of this disclosure is defined by the appended patent claims and their equivalents.

The above description is only a preferred embodiment of this utility model. All equivalent changes and modifications made within the scope of the patent application of this utility model shall fall within the scope of this utility model.

100: Side brush assembly 110: Brush base 111: First installation indicator 112: Connecting hole 1121: First hole segment 1122: Second hole segment 1123: Third hole segment 120: Brush arm 121: First end 1211: First part 1212: Second part 122: Protruding structure 123: Second end 124: First section 125: Second section 126: Third section 130: Brush bristles 200: Main body 300: Cleaning equipment α: Angle β: Angle

Various other advantages and benefits will become clear to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit this disclosure. Furthermore, the same reference numerals are used to denote the same parts throughout the drawings.

Figure 1 shows a three-dimensional structural schematic diagram of the side brush assembly provided in this disclosure embodiment from one perspective.

Figure 2 shows a structural schematic diagram of the side brush assembly provided in this disclosure embodiment from one perspective.

Figure 3 shows a structural schematic diagram of the side brush assembly provided in this disclosure embodiment from another perspective.

Figure 4 shows a cross-sectional view of the brush assembly along the A-A direction of the embodiment shown in Figure 3.

Figure 5 shows another structural schematic diagram of the brush body provided in this disclosure embodiment from another perspective.

Figure 6 shows another view of the structure of the brush body provided in this disclosure embodiment.

Figure 7 shows a three-dimensional structural schematic diagram of the side brush assembly provided in this disclosure embodiment from another perspective.

Figure 8 shows a schematic diagram of the cleaning equipment provided in this disclosure embodiment.

100: Side brush assembly

110: Seat brushing

111: First Installation Instruction

120: Brush Arm

130: Brush bristles

Claims (24)

A side brush assembly for a cleaning device, the side brush assembly comprising: a brush base configured to be connected to a drive assembly of the cleaning device such that the drive assembly drives the brush base to rotate; brush arms, wherein, when the side brush assembly includes a plurality of brush arms, the brush arms are non-uniformly distributed circumferentially around the brush base; and bristles connected to one end of the brush arm remote from the brush base. The side brush assembly of claim 1 includes a first brush arm and a second brush arm, wherein the first brush arm has a first angle between the extension direction of the brush holder and the tangent of the brush holder, and the second brush arm has a second angle between the extension direction of the brush holder and the tangent of the brush holder, and the first angle and the second angle are not equal. The side brush assembly of claim 1 includes a first brush arm and a second brush arm, wherein the second brush arm is located on the first brush arm; when the side brush assembly is installed on the cleaning device, the distance between the bristles of the first brush arm and the surface to be cleaned is greater than the distance between the bristles of the second brush arm and the surface to be cleaned. As in the side brush assembly of claim 3, wherein the length of the bristles of the first brush arm is greater than the length of the bristles of the second brush arm. The side brush assembly of Request 1, wherein the brush arm is spiral-shaped. As in claim 5, the side brush assembly includes a first segment, a second segment, and a third segment that are sequentially arranged and gradually become thinner along the direction from the brush holder to the bristles, wherein the distance between the first segment, the second segment, and the third segment and the brush holder gradually increases along the direction perpendicular to the horizontal plane. For example, the side brush assembly in claim 5, wherein the projection of the brush arm onto the horizontal plane is an involute. As in the side brush assembly of claim 1, the brush arm includes a first end connected to the bristles, the first end including a first portion and a second portion, the second portion and the first portion being disposed vertically opposite each other, the second portion being located above the first portion and protruding from the first portion along the extension direction of the brush arm; the first portion is provided with a protruding structure, and the bristles are arranged obliquely downward from the first end relative to the protruding structure. As in the side brush assembly of claim 8, the second part is inclined upward relative to the first part in a direction away from the brush holder. For example, the side brush assembly in claim 1, wherein the brush arm is a flexible component. As in claim 1, the side brush assembly includes a brush holder with a connection hole for connecting to the drive assembly, and the side brush assembly also includes a connector with a section for receiving the connector. As in claim 2, the side brush assembly has bristles extending tangentially to the brush arms, with the angle between the two directions of bristle extension not exceeding 120°. As in claim 12, the side brush assembly, wherein two of the brush arms are located on the same side of the brush holder via the midline of the axis of rotation of the brush holder. As in the side brush assembly of claim 11, the brush holder is provided with a first installation indicator, and the drive assembly is provided with a second installation indicator, the first installation indicator and the second installation indicator matching to indicate that the brush holder is in the installation position. As in claim 14, the side brush assembly, wherein when the brush holder is in the mounting position, the orthographic projection of the brush bristles on the horizontal plane is located within the orthographic projection area of the edge of the body of the cleaning device on the horizontal plane. As in the side brush assembly of claim 14, the first installation indicator is disposed on the wall of the connecting hole; wherein one of the first installation indicator and the second installation indicator is provided as a recess and the other is provided as a protrusion. As in the side brush assembly of claim 16, the connecting hole includes a first hole segment and a second hole segment along the axial direction of the brush holder, the first hole segment being located above the second hole segment and mating with the drive assembly, the first installation indicator being disposed in the first hole segment, and the connector passing through the second hole segment and connecting to the drive assembly. As in the side brush assembly of claim 17, the connecting hole further includes a third segment located below the second segment, the end of the connector remote from the drive assembly being accommodated within the third segment. The side brush assembly as described in any of claims 1-18, wherein the brush arm includes a second end connected to the brush holder, the brush holder being injection molded over the outside of the second end. As in claim 19, the side brush assembly, when installed in the cleaning device, has a second end at a distance greater than the first end at a distance greater than the distance between the second end and the surface to be cleaned. The side brush assembly as described in any of claims 1-18, wherein the hardness of the brush holder is greater than the hardness of the bristles. The side brush assembly as described in any of claims 1-18, wherein the cleaning device includes: the drive assembly configured to drive the brush holder to switch between an installed position and a working position; or the cleaning device includes: the drive assembly and a telescopic assembly, wherein the telescopic assembly is connected to the brush holder to drive the brush holder to switch between the installed position and the working position. As in claim 22, the side brush assembly is driven such that, when in the mounted position, the side brush assembly as a whole is retracted into the projection area of the edge of the main body of the cleaning device in the horizontal plane; and when in the working position, the bristles are extended beyond the projection area of the edge of the main body in the horizontal plane. A cleaning device includes: a body, and a side brush assembly as described in any one of claims 1 to 23, the side brush assembly being located at the bottom of the body.