Side brush assembly and cleaning equipment

By designing a side brush assembly with rotatable legs that connect to the side brush head, dynamic balance is maintained using centrifugal force and gravity, solving the problem of the side brush spreading out sewage in sewage areas and achieving a more efficient cleaning effect.

CN120918525APending Publication Date: 2025-11-11MIDEA ROBOZONE TECH CO LTD
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Patent Information

Application Number
CN202410563241.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-05-08
Publication Date
2025-11-11

AI Technical Summary

Technical Problem

When cleaning with dirty or viscous liquids, the side brush will spread the dirty water, increasing the difficulty of cleaning.

Method used

Design a side brush assembly with legs rotatably connected to the side brush head. The second rotation axis is perpendicular to or at an angle to the first rotation axis. The relative height of the side brush bristles to the ground is changed by adjusting the rotation speed of the side brush head. Dynamic balance is maintained by using centrifugal force and gravity to prevent the side brush bristles from contacting the ground.

Benefits of technology

It effectively prevents the side brush bristles from spreading sewage, reducing cleaning difficulty and improving the cleaning effect of cleaning equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of intelligent household equipment, in particular to a side brush assembly and cleaning equipment, and the side brush assembly comprises a side brush head which is used for being in transmission connection with a driving device and can rotate around a first rotation axis; the supporting leg is rotatably connected with the side brush head, the supporting leg rotates around a second rotating axis relative to the side brush head, and the second rotating axis is perpendicular to the first rotating axis or forms an included angle with the first rotating axis; and the side bristles are arranged on the supporting legs. According to the side brush assembly, when the side brush assembly passes through the ground with a sewage area, the supporting legs and the side brush bristles can be lifted by adjusting the rotating speed of the side brush head, so that the side brush bristles are separated from the ground, the sewage is prevented from being spread out by the side brush bristles, and the cleaning difficulty is reduced.
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Description

Technical Field

[0001] This invention relates to the field of smart home device technology, and in particular to a side brush component and a cleaning device. Background Technology

[0002] Robotic vacuum cleaners, also known as automatic cleaning machines, smart vacuums, or robotic vacuums, are a type of smart home appliance that uses artificial intelligence to automatically clean floors in a room. They feature side brushes that, as they rotate on the floor, gather dust from the sides of the main brush and bring it to the brush's coverage area, making it easier for the main brush to clean and increasing the cleaning coverage. However, when the surface to be cleaned contains dirty water or viscous liquids, the side brushes, always in contact with the ground, spread the dirty water as they pass over it, increasing the surface area of ​​the dirty water and making cleaning more difficult. Summary of the Invention

[0003] The object of this invention is to at least solve the problem of the side brush spreading wastewater because it is always in contact with the ground. This object is achieved by the following means:

[0004] A first aspect of the present invention provides a side brush assembly for a cleaning device, the side brush assembly comprising: a side brush head rotatable about a first rotation axis; and a side brush component including a support leg and side brush bristles, the support leg being rotatably connected to the side brush head and rotatable relative to the side brush head about a second rotation axis, the side brush bristles being mounted on the support leg, the second rotation axis being perpendicular to or at an angle to the first rotation axis.

[0005] According to the side brush assembly of the present invention, when the side brush assembly is installed in a cleaning device, during the cleaning process of the cleaning device cleaning the ground, the first rotation axis extends vertically or forms an angle with the vertical direction, the support leg is rotatably disposed on the side brush head, and the second rotation axis is perpendicular to or at an angle to the first rotation axis. When the support leg rotates relative to the side brush head, the relative height between the side brush bristles and the ground can be changed. Furthermore, when the side brush head rotates under the drive of the drive device, the support leg and the side brush bristles can maintain dynamic balance at a certain height under the action of centrifugal force, the pulling force of the side brush head, and gravity. The greater the centrifugal force, the greater the height of the side brush bristles from the ground. Therefore, when the side brush assembly passes over the ground with a sewage area, the support leg and the side brush bristles can be raised by adjusting the rotation speed of the side brush head, so that the side brush bristles are separated from the ground, preventing the side brush bristles from spreading the sewage and reducing the cleaning difficulty.

[0006] In addition, the brush assembly according to the present invention may also have the following additional technical features:

[0007] In some embodiments of the present invention, the center of gravity of the side brush component is offset from the first rotation axis and the second rotation axis.

[0008] In some embodiments of the present invention, the support leg includes a support rod and a connecting rod connected to the support rod. The connecting rod is rotatably connected to the side brush head, the side brush bristles are mounted on the support rod, and the connecting rod is perpendicular to or at an angle to the support rod.

[0009] In some embodiments of the present invention, the support rod includes a first end and a second end arranged opposite to each other, the connecting rod is connected to the first end, and the side brush bristles are mounted on the second end; along a direction perpendicular to the second rotation axis, the center of gravity of the side brush component is located between the side brush bristles and the second rotation axis.

[0010] In some embodiments of the present invention, the support rod includes a first end and a second end arranged opposite to each other, the connecting rod is located between the first end and the second end, and the side brush bristles are mounted on the second end; along a direction perpendicular to the second rotation axis, the center of gravity of the side brush component and the side brush bristles are respectively located on both sides of the second rotation axis.

[0011] In some embodiments of the present invention, the side brush component further includes a counterweight block, which is connected to the connecting rod.

[0012] In some embodiments of the present invention, the counterweight is provided with a through hole, and the support rod passes through the through hole and is connected to the counterweight.

[0013] In some embodiments of the present invention, the end face of the second end is provided with a mounting hole, and one end of the side brush bristles is installed in the mounting hole.

[0014] In some embodiments of the present invention, the side brush head is provided with a limiting part. Along a direction perpendicular to the second rotation axis, the limiting part is located on one side of the connecting rod and can abut against the connecting rod. When the limiting part abuts against the connecting rod, the limiting part restricts the connecting rod from continuing to rotate relative to the side brush head in a direction away from the connecting rod, and the support rod is inclined relative to the first rotation axis.

[0015] In some embodiments of the present invention, the side brush assembly includes at least two legs, which are arranged sequentially and at intervals around the first rotation axis on the side brush head, and each leg is equipped with a side brush bristle and a counterweight.

[0016] Another aspect of the present invention provides a cleaning device, comprising: a body, the body being provided with a driving device; and a side brush assembly as described in the first aspect of the technical solution, wherein the side brush head in the side brush assembly is connected to the driving device, the driving device being capable of driving the side brush head to rotate around a first rotation axis and driving the support legs in the side brush assembly to rotate around a second rotation axis. Attached Figure Description

[0017] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. Wherein:

[0018] Figure 1 This is a schematic diagram of the structure of a cleaning device with a side brush assembly in a low-speed rotation state according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of a cleaning device with a side brush assembly in a high-speed rotating state according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of a side brush assembly according to an embodiment of the present invention;

[0021] Figure 4 This is an exploded view of the components of a side brush assembly according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of a side brush head according to an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of a cleaning device with a side brush assembly in a high-speed rotating state, according to another embodiment of the present invention.

[0024] Figure 7 This is a schematic diagram of the structure of a side brush assembly according to another embodiment of the present invention;

[0025] Figure 8 This is an exploded view of the components of a side brush assembly according to another embodiment of the present invention;

[0026] Figure 9 This is a schematic diagram of the support leg according to an embodiment of the present invention;

[0027] Figure 10 This is a schematic diagram of the structure of a side brush assembly according to another embodiment of the present invention.

[0028] The labels in the attached diagram are as follows:

[0029] 1000, Side Brush Component;

[0030] 100. Side brush head; 11. Limiting part; 12. Abutting surface; 13. First pin hole; 101. First rotation axis;

[0031] 200. Side brush component; 20. Support leg; 21. Support rod; 211. First end; 212. Second end; 2121. Mounting hole; 213. Buckle; 2131. Inclined surface; 2132. Stop surface; 22. Connecting rod; 221. Second pin hole; 201. Second rotation axis;

[0032] 30. Edge brush bristles;

[0033] 40. Counterweight; 41. Main body; 42. Fitting part; 43. Through hole;

[0034] 50. Pin;

[0035] 2000, Cleaning equipment; 210, Drive unit; 220, Machine body. Detailed Implementation

[0036] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the invention and to fully convey the scope of the invention to those skilled in the art.

[0037] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0038] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0039] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure rotates, then an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations.

[0040] According to embodiments of the present invention, please refer to Figure 1 and Figure 10 As shown, a side brush assembly 1000 is provided. The side brush assembly 1000 is used in a cleaning device 2000. The side brush assembly 1000 is installed at the bottom of the cleaning device 2000 and connected to the drive device 210 in the cleaning device 2000. During the cleaning process, the drive device 210 drives the side brush assembly 1000 to rotate, so as to use the side brush assembly 1000 to sweep dust and other debris from the ground.

[0041] The side brush assembly 1000 includes a side brush head 100 and a side brush component 200. The side brush component 200 includes support legs 20 and side brush bristles 30. The side brush head 100 is connected to a drive device 210 in the cleaning equipment. The drive device 210 can be a drive motor or a rotating mechanism connected to the drive motor. That is, the side brush head 100 can be directly connected to the shaft of the drive motor, or the side brush head 100 can be connected to the rotating mechanism on the cleaning equipment. The rotating mechanism can be a gear set, a sprocket set, etc., and is not specifically limited here. The drive device 210 can drive the side brush head 100 to rotate around the first rotation axis 101. In this embodiment, the side brush head 100 has a cylindrical structure, and the first rotation axis 101 is the axis of the side brush head 100 itself. Understandably, in other embodiments, the side brush head 100 can also be configured as a hemispherical, prism, or other structure.

[0042] The support leg 20 is pivotally connected to the side brush head 100 via a pin 50, allowing the support leg 20 to rotate relative to the side brush head 100 around a second rotation axis 201, which is also the axis of the pin 50. Side brush bristles 30 are mounted on the end of the support leg 20 facing away from the side brush head 100. Specifically, the outer circumferential surface of the side brush head 100 has a first pin hole 13, and the support leg 20 has a second pin hole 221. The pin 50 passes through the second pin hole 221, with one end of the pin 50 extending out of the second pin hole 221 and inserted into the first pin hole 13, where it is fixedly connected to the side brush head 100. The support leg 20 can rotate relative to the side brush head 100 around the pin 50. The second rotation axis 201 is perpendicular to the second rotation axis 201.

[0043] In this embodiment, the center of gravity of the side brush component 200 is offset from the first and second rotation axes. When the side brush assembly 1000 is installed in the cleaning device 2000, during the cleaning process of the cleaning device 2000 cleaning the floor, the first rotation axis 101 extends vertically or forms an angle with the vertical direction. The support leg 20 is rotatably mounted on the side brush head 100, and the second rotation axis 201 is perpendicular to or at an angle to the first rotation axis 101. When the support leg 20 rotates relative to the side brush head 100... The relative height between the side brush bristles 30 and the ground can be changed. Furthermore, when the side brush head 100 rotates under the drive of the drive device 210, since the center of gravity of the side brush component 200 is set off from the first rotation axis and the second rotation axis, the side brush component 200 can maintain dynamic balance at a certain height under the action of centrifugal force, the pulling force of the side brush head 100 and gravity. The magnitude of the centrifugal force changes with the rotation speed of the side brush head 100, thereby enabling the side brush component 200 to maintain dynamic balance at different heights.

[0044] For example, in some embodiments, such as Figure 1As shown, along the direction perpendicular to the second rotation axis, the center of gravity of the side brush component 200 is located between the side brush bristles and the second rotation axis. The greater the centrifugal force, the greater the height of the side brush bristles 30 and the greater the clearance of the side brush bristles 30 from the ground. Therefore, when the side brush assembly 1000 passes over the ground with a sewage area, increasing the rotation speed of the side brush head 100 can raise the support leg 20 and the side brush bristles 30, so that the side brush bristles 30 are separated from the ground, preventing the side brush bristles 30 from spreading the sewage and reducing the cleaning difficulty.

[0045] In other embodiments, such as Figure 6 As shown, along the direction perpendicular to the second rotation axis, the center of gravity of the side brush component 200 and the side brush bristles 30 are located on both sides of the second rotation axis. The greater the centrifugal force, the smaller the height of the side brush bristles 30, the smaller the gap between the side brush bristles 30 and the ground, or the side brush bristles 30 directly abut against the ground. Therefore, when the side brush assembly 1000 passes over the ground with a sewage area, reducing the rotation speed of the side brush head 100 or stopping the rotation can raise the support leg 20 and the side brush bristles 30, so that the side brush bristles 30 are separated from the ground, preventing the side brush bristles 30 from spreading the sewage and reducing the cleaning difficulty.

[0046] It should be noted that, due to factors such as machining errors, assembly errors, and the clearance between the support leg 20 and the pin 50, the second rotation axis 201 and the first rotation axis 101 can also be set at an angle. During the rotation of the support leg 20 relative to the side brush head 100 around the second rotation axis 201, as long as the relative position of the side brush bristles 30 and the side brush head 100 changes along the extension direction of the first rotation axis 101, when the first rotation axis 101 is set vertically, the height of the side brush bristles 30 relative to the ground changes as the support leg 20 rotates relative to the side brush head 100 around the second axis. This allows the side brush bristles 30 to switch between contacting the ground and being out of contact with the ground. Therefore, the angled arrangement of the second rotation axis 201 and the first rotation axis 101 is also within the scope of protection of this invention.

[0047] In some embodiments, please combine Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the side brush component 200 and side brush assembly 1000 also include a counterweight 40. The counterweight 40 can be a block-shaped component with a density greater than or equal to that of the support leg 20. The counterweight 40 can be configured as a spherical, square, or other structural form. The counterweight 40 is mounted on the support leg 20 and is offset from the second rotation axis 201. During the rotation of the support leg 20, counterweight 40, and side brush bristles 30 by the side brush head 100, when the centrifugal force f1 of the counterweight 40 and the support leg 20 is combined with the tension of the counterweight 40 and the support leg 20 by the side brush head 100, the counterweight 40 and the support leg 20 are affected by the centrifugal force f1 of the side brush head 100. If the resultant force F1 of force f2 is less than the weight G1 of counterweight 40 and support leg 20, then the side brush bristles 30 are pressed to the ground by gravity G1. During the rotation of the side brush bristles 30 around the first rotation axis 101, they play a role in cleaning the ground. When the resultant force F1 of the centrifugal force f1 of counterweight 40 and support leg 20 and the pulling force f2 of counterweight 40 and support leg 20 from the side brush head 100 is greater than the weight G1 of counterweight 40 and support leg 20, the support leg 20, counterweight 40 and side brush bristles 30 are lifted together, and the side brush bristles 30 are separated from the ground. In this embodiment, along the direction perpendicular to the second rotation axis, the center of gravity of the side brush component 200 is located between the side brush bristles and the second rotation axis.

[0048] In some embodiments, please combine Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the support leg 20 includes a support rod 21 and a connecting rod 22 connected to the support rod 21. Both the support rod 21 and the connecting rod 22 are rod-shaped with a prism-shaped cross-section. The outer peripheral surface of the side brush head 100 is provided with an abutment surface 12 that fits against the side of the connecting rod 22. A first pin hole 13 is provided on the abutment surface 12, and the connecting rod 22 is provided with the aforementioned second pin hole 221. When the connecting rod 22 is installed on the side brush head 100 via a pin 50, the side of the connecting rod 22 can fit against the abutment surface 12. When the side brush head 100 drives the support leg 20 to rotate around the first rotation axis 101, the abutment surface 12 can provide support force to the side of the connecting rod 22, improving the stability of the support leg 20 during rotation around the first rotation axis 101. The support rod 21 and the connecting rod 22 are connected and perpendicular to each other. The side brush bristles 30 and the counterweight 40 are both installed on the support rod 21. In this embodiment, by setting the support rod 21 and the connecting rod 22 perpendicular to each other, under the action of centrifugal force, the side brush bristles can be raised above the horizontal plane, preventing the bristle tips from touching the ground due to fluffiness. Understandably, in other embodiments, the support rod 21 and the connecting rod 22 may also be set at an angle.

[0049] In this embodiment, please refer to Figure 3 and Figure 5As shown, the side brush head 100 is provided with a limiting part 11, which is a protruding structure on the outer peripheral surface of the side brush head 100. Along a direction perpendicular to the second rotation axis 201, the limiting part 11 is located on one side of the connecting rod 22 and can abut against the connecting rod 22. When the limiting part 11 abuts against the connecting rod 22, the limiting part 11 restricts the connecting rod 22 from continuing to rotate relative to the side brush head 100 in a direction away from the limiting part 11, and the support rod 21 is tilted relative to the first rotation axis 101. By providing the limiting part 11, the deflection angle of the support leg 20 relative to the side brush head 100 can be limited, serving a limiting and foolproof function to prevent users from installing it incorrectly.

[0050] In some embodiments, please combine Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the support rod 21 includes a first end 211 and a second end 212 arranged opposite to each other. The connecting rod 22 is connected to the first end 211. The support leg 20 has an L-shaped structure. The side brush bristles 30 and the counterweight 40 are installed on the second end 212. In this embodiment, with the cooperation of the limiting part 11 and the connecting rod 22, when the side brush head 100 is not rotating, the counterweight 40 and the side brush bristles 30 hang down under the action of gravity, and the side brush bristles 30 abut against the ground. The second end 212 of the support rod 21, the counterweight 40, and the side brush bristles 30 are all located at positions offset from the first rotation axis 101. When the side brush head 100 is rotating at a low speed, the resultant force F1 of the centrifugal force f1 of the counterweight 40 and the support leg 20 and the pulling force f2 of the side brush head 100 on the counterweight 40 and the support leg 20 is less than the weight G1 of the counterweight 40 and the support leg 20. The side brush bristles 30 are pressed to the ground by the gravity G1. During the process of the side brush bristles 30 rotating around the first rotation axis 101, they play the role of cleaning the ground. When the side brush head 100 is rotating at high speed, the resultant force F1 of the centrifugal force f1 of the counterweight 40 and the support leg 20 and the pulling force f2 of the side brush head 100 on the counterweight 40 and the support leg 20 is greater than the weight G1 of the counterweight 40 and the support leg 20. The support leg 20, the counterweight 40 and the side brush bristles 30 are lifted together, and the side brush bristles 30 are separated from the ground. When the support leg 20 and the counterweight 40 are lifted until the resultant force F1 is equal to the weight G1, the support leg 20 and the counterweight 40 can maintain dynamic balance at that height above the ground, so that the side brush bristles 30 can remain detached from the ground for a long time.

[0051] It should be noted that, in this embodiment, the high-speed rotation and low-speed rotation of the side brush head 100 are relative values ​​of the side brush head 100 at different rotation speeds. The rotation speed when the side brush bristles 30 can remain in a state of being detached from the ground can be defined as high-speed rotation, and the rotation speed when the side brush bristles 30 remains in a state of being in contact with the ground can be defined as low-speed rotation.

[0052] In this embodiment, please refer to Figure 8 and Figure 9 As shown, the counterweight 40 is provided with a through hole 43, and the support rod 21 passes through the through hole 43 and is connected to the counterweight 40, so that the counterweight 40 is connected to the support leg 20 by being sleeved outside the support rod 21. This can reduce the space occupied by the counterweight 40 along the extension direction of the first rotation axis 101 while increasing the overall weight of the support leg 20 and the counterweight 40, making the overall structure of the support leg 20 and the counterweight 40 more compact, thereby reducing the probability of the counterweight 40 colliding and interfering with the ground or foreign objects on the ground during the rotation of the side brush assembly 1000.

[0053] Furthermore, please combine Figure 3 , Figure 8 and Figure 9 As shown, the support rod 21 has a buckle 213 on its outer surface near the second end 212. The buckle 213 is a protruding structure with an inclined surface 2131 and a stop surface 2132. The counterweight 40 includes a spherical main body 41 and a mating part 42 connected to the main body 41. The through hole 43 passes through the main body 41 and the mating part 42 in sequence. The mating part 42 has a rectangular frame structure. During the process of the counterweight 40 being fitted onto the support rod 21, the mating part 42 is elastically deformed and opened under the guidance and support of the inclined surface 2131. After the counterweight 40 passes through the buckle 213, the mating part 42 elastically recovers and abuts against the stop surface 2132 to prevent the counterweight 40 from coming off the second end 212 of the support rod 21, thereby realizing the snap-fit ​​connection between the support leg 20 and the counterweight 40.

[0054] In this embodiment, the counterweight 40 can be a metal part or a non-metal part.

[0055] In some embodiments, one of the support rod 21 and the counterweight 40 is provided with a buckle (not shown in the figure), and the other is provided with a groove (not shown in the figure), which engages with the buckle. For example, one of the inner wall surfaces of the circumferential through-hole 43 on the support rod 21 is provided with a protrusion on the buckle, and the other is provided with a groove that engages with the buckle, thereby achieving the snap-fit ​​connection between the support leg 20 and the counterweight 40.

[0056] Furthermore, the end face of the second end 212 is provided with a mounting hole 2121, and one end of the side brush 30 is installed in the mounting hole 2121. The side brush 30 can be installed in the mounting hole 2121 by means of adhesive.

[0057] In some embodiments, such as Figure 6 , Figure 7 and Figure 8As shown, the support rod 21 includes a first end 211 and a second end 212 arranged opposite to each other. A connecting rod 22 is located between the first end 211 and the second end 212, making the support leg 20 have a T-shaped structure. A counterweight 40 is installed at the first end 211, and the side brush bristles 30 are installed at the second end 212. In this embodiment, when the side brush head 100 is not rotating, the counterweight 40 hangs down under the action of gravity, causing the second end 212 of the support leg 20, together with the side brush bristles 30, to tilt upward, so that the side brush bristles 30 are no longer in contact with the ground. When the side brush head 100 is not rotating, the counterweight 40 and the second end 212 of the support rod 21 are located on both sides of the second rotation axis 201, and the counterweight 40 is located at a position offset from the first rotation axis 101. When the side brush head 100 is rotating at high speed, the resultant force F2 of the centrifugal force f3 of the counterweight 40 and the pulling force f4 of the side brush head 100 is greater than the weight G2 of the counterweight 40, causing the counterweight 40 to be lifted. Simultaneously, the side brush bristles 30 are pressed against the ground, achieving a cleaning effect. Understandably, when the side brush head 100 is rotating at low speed, the resultant force F2 of the centrifugal force f3 of the counterweight 40 and the pulling force f4 of the side brush head 100 is less than the weight G2 of the counterweight 40. The counterweight 40 droops under gravity, causing the second end 212 of the support leg 20, along with the side brush bristles 30, to tilt upwards, detaching the side brush bristles 30 from the ground. Therefore, in this embodiment, when the side brush head 100 is rotating at low speed or stopped, the side brush bristles 30 are detached from the ground; when the side brush head 100 is rotating at high speed, the side brush bristles 30 are pressed against the ground, achieving a cleaning effect. In this embodiment, along a direction perpendicular to the second rotation axis, the center of gravity of the side brush component 200 and the side brush bristles 30 are located on both sides of the second rotation axis.

[0058] In some embodiments, such as Figure 7 and Figure 8 As shown, the support rod 21 includes a first end 211 and a second end 212 arranged in opposite directions. The connecting rod 22 is located between the first end 211 and the second end 212, making the support leg 20 have a T-shaped structure. In this embodiment, both the first end 211 and the second end 212 of the support rod 21 are provided with a snap-fit ​​structure for connecting to the counterweight block 40. The side brush 30 is installed on the second end 212, and the counterweight block 40 can be selectively installed on either the first end 211 or the second end 212. Thus, the configuration block can be set in different positions on the support leg 20 according to the user's different preferences, meeting the diverse needs of the user.

[0059] In some embodiments, such as Figure 1 and Figure 6As shown, the side brush assembly 1000 includes at least two legs 20, which are sequentially and spaced apart around a first rotation axis 101 on the side brush head 100. Each leg 20 is equipped with a side brush bristle 30 and a counterweight 40. Understandably, when the side brush assembly 1000 includes two or more legs 20, each leg 20 is sequentially and equally spaced around the first rotation axis 101 on the outer peripheral surface of the side brush head 100. The number of legs 20 and side brush bristles 30 can be set to two, three, or more.

[0060] According to embodiments of the present invention, such as Figure 1 , Figure 2 and Figure 6 As shown, a cleaning device 2000 is also proposed. The cleaning device 2000 includes a body 220, which is equipped with a drive device 210. The cleaning device 2000 also includes a side brush assembly 1000 as described in the first aspect of the technical solution. One end of the side brush head 100 is connected to the drive device 210 for transmission. The drive device 210 can drive the side brush head 100 to rotate around a first rotation axis 101. Specifically, the cleaning device 2000 can be a cleaning robot, etc. In the cleaning device 2000 of the present invention, the drive device 210 can change the contact state between the side brush bristles 30 and the ground by controlling the rotation speed of the side brush assembly 1000, so that the side brush bristles 30 and the support legs 20 can move up and down relative to the body 220. This allows the side brush assembly 1000 to detach from the ground when its rotation speed reaches a preset speed, which helps to prevent the side brush bristles 30 from spreading sewage, reduces the cleaning difficulty, and thus improves the cleaning effect of the cleaning device 2000.

[0061] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A side brush assembly for cleaning equipment, characterized in that, The side brush assembly includes: The brush head is capable of rotating around the first axis of rotation; A side brush component, comprising a support leg and side brush bristles, wherein the support leg is connected to the side brush head and is rotatable relative to the side brush head about a second rotation axis, and the side brush bristles are mounted on the support leg, wherein the second rotation axis is perpendicular to or at an angle to the first rotation axis.

2. The side brush assembly according to claim 1, characterized in that, The center of gravity of the side brush component is offset from the first rotation axis and the second rotation axis.

3. The side brush assembly according to claim 2, characterized in that, The support leg includes a support rod and a connecting rod connected to the support rod. The connecting rod is rotatably connected to the side brush head. The side brush bristles are installed on the support rod. The connecting rod is perpendicular to or at an angle to the support rod.

4. The side brush assembly according to claim 3, characterized in that, The support rod includes a first end and a second end arranged in opposite directions, the connecting rod is connected to the first end, and the side brush bristles are installed on the second end; Along a direction perpendicular to the second axis of rotation, the center of gravity of the side brush component is located between the side brush bristles and the second axis of rotation.

5. The side brush assembly according to claim 3, characterized in that, The support rod includes a first end and a second end arranged in opposite directions, the connecting rod is located between the first end and the second end, and the side brush bristles are installed on the second end; Along a direction perpendicular to the second axis of rotation, the center of gravity of the side brush component and the side brush bristles are located on opposite sides of the second axis of rotation.

6. The side brush assembly according to claim 4 or 5, characterized in that, The side brush component also includes a counterweight, which is connected to the connecting rod.

7. The side brush assembly according to claim 6, characterized in that, The counterweight has a through hole, and the support rod passes through the through hole and is connected to the counterweight.

8. The side brush assembly according to claim 7, characterized in that, The second end has a mounting hole on its end face, and one end of the side brush bristles is installed in the mounting hole.

9. The side brush assembly according to claim 3, characterized in that, The side brush head is provided with a limiting part. Along a direction perpendicular to the second rotation axis, the limiting part is located on one side of the connecting rod and can abut against the connecting rod. When the limiting part abuts against the connecting rod, the limiting part restricts the connecting rod from continuing to rotate relative to the side brush head in a direction away from the connecting rod, and the support rod is inclined relative to the first rotation axis.

10. The side brush assembly according to claim 6, characterized in that, The side brush assembly includes at least two legs, which are arranged sequentially and at intervals around the first rotation axis on the side brush head. Each leg is equipped with a side brush bristle and a counterweight.

11. A cleaning device, characterized in that, include: The machine body is equipped with a drive device; and The side brush assembly as described in any one of claims 1 to 10, wherein the side brush head in the side brush assembly is connected to the driving device, and the driving device is capable of driving the side brush head to rotate around a first rotation axis and driving the support leg in the side brush assembly to rotate around a second rotation axis.

Citation Information

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