Side brush assembly and cleaning device

Abstract

A side brush assembly (200) and a cleaning device (100). The side brush assembly (200) comprises: a side brush body (210), the side brush body (210) comprising a base (211) and at least one support leg (212) distributed on the peripheral side of the base (211), the base (211) being connected to a driving assembly of the cleaning device (100) so that the driving assembly drives the side brush body (210) to rotate, the support leg (212) being spiral, and the projection of the support leg (212) on the horizontal plane being a spiral involute.

Description

Side brush assembly and cleaning equipment

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on March 29, 2024, with application number 202410384524.9 and application name “Side brush assembly and cleaning device”, the entire contents of which are incorporated by reference into this application.

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on March 29, 2024, with application number 202420647185.4 and application name “Side brush assembly and cleaning device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of smart home technology, and in particular to a side brush assembly and a cleaning device. Background Art

[0004] With the continuous development of science and technology and the continuous improvement of people's living standards, cleaning equipment, such as smart sweeping robots, have been continuously integrated into our daily lives. They can automatically complete the floor cleaning work in the room with a certain degree of artificial intelligence.

[0005] Typically, sweeping robots use a brush to sweep, sucking debris into their dust bin to complete the floor cleaning process. To clean areas beyond the main brush, sweeping robots are often equipped with side brushes to expand their cleaning range. However, existing side brushes are simple in structure and can cause hair to become tangled after prolonged use, requiring the user to clean them, which is very inconvenient.

[0006] Application Contents

[0007] The content of this application introduces a series of simplified concepts that will be further described in the detailed description. This section of this application does not intend to limit the key features and essential technical features of the claimed technical solution, nor does it intend to determine the scope of protection of the claimed technical solution.

[0008] An embodiment of the first aspect of the present application provides a side brush assembly, comprising: a side brush body, the side brush body comprising a base, and at least one support leg distributed around the base, the base being configured to be connected to a drive assembly of a cleaning device so that the drive assembly drives the side brush body to rotate, the support leg being spiral-shaped, and the projection of the support leg on the horizontal plane being a segment of an involute.

[0009] In some embodiments, the rotation direction of the side brush body is configured to be opposite to the helical direction of the legs.

[0010] In some embodiments, a limiting boss is provided on the peripheral side of the base, and the limiting boss is located below the top of the base.

[0011] In some embodiments, the limiting boss corresponds to the supporting leg, and the projection of the limiting boss on the horizontal plane is close to the connection position between the supporting leg and the base.

[0012] In some embodiments, the support leg includes a first side surface located at the top, the bottom of the limiting boss is in contact with the first side surface, and a guide surface is provided on the side of the limiting boss away from the connection position between the support leg and the base, and the guide surface is inclined from the top to the bottom of the base toward the direction close to the connection position between the support leg and the base.

[0013] In some embodiments, the base includes a first section and a second section at the bottom of the first section along the axial direction, the connecting side is located on the side of the first section away from the second section, and the supporting feet and the limiting boss are arranged on the circumferential side of the second section.

[0014] In some embodiments, the radius of the end of the spiral foot connected to the base ranges from 15mm to 20mm; and / or the radius of the end of the spiral foot away from the base ranges from 55mm to 60mm; and / or the pitch of the spiral foot ranges from 55mm to 60mm; and / or the number of spiral turns of the spiral foot is 0.7 turns to 0.8 turns; and / or the height of the side brush assembly ranges from 45mm to 50mm.

[0015] In some embodiments, the radius of the end of the spiral foot connected to the base ranges from 10 mm to 15 mm; and / or the radius of the end of the spiral foot away from the base ranges from 60 mm to 70 mm; and / or the pitch of the spiral foot ranges from 50 mm to 55 mm; and / or the number of spiral turns of the spiral foot is 0.6 turns to 0.7 turns; and / or the height of the side brush assembly ranges from 40 mm to 45 mm.

[0016] In some embodiments, the side brush assembly further comprises: bristles connected to the support foot and located at an end of the support foot away from the base.

[0017] In some embodiments, a receiving groove is provided on the end surface of the end of the support leg away from the base, and one end of the bristle is received in the receiving groove and connected to the receiving groove by an adhesive.

[0018] In some embodiments, the support leg is an elastic member, and the hardness of the support leg ranges from 75HB to 85HB.

[0019] An embodiment of the second aspect of the present application provides a cleaning device, comprising: a main body, and the side brush assembly of any one of the first aspects, wherein the side brush assembly is located at the bottom of the main body.

[0020] The present application provides a side brush assembly and cleaning device, wherein the side brush assembly includes a side brush body, a base of the side brush body connected to a drive assembly mounted on a machine body of the cleaning device, and a side brush connected to a peripheral side of the base. Thus, the drive assembly can drive the side brush assembly to rotate relative to the machine body, moving debris and other debris into the roller brush area of ​​the cleaning system, thereby achieving an auxiliary cleaning effect. Because the support legs are spiral-shaped and the projection of the support legs on a horizontal plane is an involute, hair, thread, and other debris wrapped around the support legs will be tightly wrapped around the support legs during the rotation of the side brush body. As the side brush body rotates, the wrapping force increases. When the wrapping force of the debris on the support legs reaches the limit of the elastic support legs, the support legs elastically deform and bounce the debris wrapped around the support legs, thereby reducing the possibility of entanglement of hair, thread, and other debris, reducing the frequency of users cleaning the side brush assembly, and extending the replacement cycle of the side brush assembly, reducing usage costs, and improving the user experience.

[0021] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. Throughout the drawings, the same reference numerals are used to denote the same components.

[0023] FIG1 is a schematic structural diagram of a cleaning device provided by an embodiment of the present application from one perspective;

[0024] FIG2 shows a schematic structural diagram of the cleaning device provided in an embodiment of the present application from another perspective;

[0025] FIG3 shows a schematic structural diagram of a side brush assembly provided by an embodiment of the present application from one perspective;

[0026] FIG4 shows a schematic structural diagram of a side brush assembly provided by an embodiment of the present application from another perspective;

[0027] FIG5 shows a schematic structural diagram of a side brush body provided in an embodiment of the present application from one perspective.

[0028] Among them, the correspondence between the figure marks and component names in Figures 1 to 5 is: 100 cleaning device, 110 main body, 111 forward part, 112 rearward part, 120 driving system, 121 driving wheel module, 122 driven wheel, 130 cleaning system, 131 dry cleaning system, 132 wet cleaning system, 200 side brush assembly, 210 side brush body, 211 base, 2111 connecting side, 2112 first section, 2113 second section, 212 support foot, 2121 first end, 2122 second end, 2123 first side surface, 2124 accommodating groove, 213 limiting boss, 2131 guide surface, 220 bristles. DETAILED DESCRIPTION

[0029] In the following description, a number of specific details are given to provide a more thorough understanding of the technical solutions provided by this application. However, it is obvious to those skilled in the art that the technical solutions provided by this application can be implemented without one or more of these details.

[0030] It should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of the features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0031] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided to make the disclosure of this application thorough and complete and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art.

[0032] As shown in Figures 1 to 5, an embodiment of the first aspect of the present application provides a side brush assembly 200, and an embodiment of the second aspect of the present application provides a cleaning device 100, wherein the side brush assembly 200 is applied to the cleaning device 100, wherein the cleaning device 100 can be a sweeping robot, a sweeping and mopping machine, or other cleaning robots that meet the requirements.

[0033] Specifically, the cleaning device 100 includes, but is not limited to, a main body 110, a cleaning system 130, a drive system 120, and the like. The above-mentioned systems coordinate with each other so that the cleaning device 100 can move autonomously to achieve the cleaning function. The functional components constituting the above-mentioned systems in the cleaning device 100 are integrated into the main body 110. It is understood that the cleaning device 100 can be a self-moving cleaning device. A self-moving cleaning device is a device that automatically performs a cleaning operation in a certain area to be cleaned without user operation.

[0034] As shown in FIG1 , the main body 110 includes a forward portion 111 and a rearward portion 112 , and has an approximately circular shape or other shapes, including but not limited to an approximately D-shaped shape with a front and rear circular shape and a rectangular or square shape with a front and rear circular shape.

[0035] As shown in Figure 2, drive system 120 can manipulate main body 110 to travel across the ground based on a drive command with distance and angle information such as x, y and theta components. Drive system 120 includes drive wheel module 121, and drive wheel module 121 can control left and right wheels simultaneously. In order to more accurately control the movement of the machine, drive wheel module 121 includes left drive wheel module and right drive wheel module respectively. The left and right drive wheel modules are arranged along the transverse axis defined by main body 110. In order that cleaning equipment 100 can move more stably or have stronger movement ability on the ground, cleaning equipment 100 may include one or more driven wheels 122, and driven wheels 122 include but are not limited to universal wheels. Drive wheel module 121 includes running wheels and drive motor and control circuit of control drive motor. Drive wheel module 121 can also be connected to the circuit and odometer measuring the driving current.

[0036] As shown in FIG2 , the cleaning system 130 includes a dry cleaning system 131 , that is, the cleaning device 100 may be a sweeping robot; alternatively, the cleaning system 130 includes a wet cleaning system 132 and a dry cleaning system 131 , that is, the cleaning device 100 may be a sweeping and mopping machine.

[0037] As shown in Figure 2, the dry cleaning system 131 provided in this embodiment of the present application may include a roller brush, a dust box, and a dust suction fan. The roller brush, which has a certain degree of contact with the ground, sweeps up debris from the ground and carries it to the front of the dust suction port between the roller brush and the dust box. The dust is then sucked into the dust box by the suction air generated by the dust suction fan and passed through the dust box.

[0038] Furthermore, as shown in Figure 2, the cleaning device 100 provided in the embodiment of the present application, the cleaning system 130 may also include a side brush assembly 200, which is rotatably connected to the machine body 110 and is used to move debris and other sundries outside the roller brush area into the roller brush area of ​​the cleaning system 130.

[0039] As shown in Figures 3, 4 and 5, the side brush assembly 200 provided in the present application includes: a side brush body 210, the side brush body 210 includes a base 211, and at least one support leg 212 distributed around the base 211, the base 211 is configured to be connected to the driving assembly of the cleaning device 100 so that the driving assembly drives the side brush body 210 to rotate, the support leg 212 is spiral, and the projection of the support leg 212 on the horizontal plane is a segment of involute.

[0040] Among them, the involute refers to the trajectory of a point K on a straight line when the straight line rolls purely on the circle, which is called the involute of the circle. In the side brush assembly 200 provided in the embodiment of the present application, the support leg 212 is spiral-shaped, and the projection of the spiral support leg 212 on the horizontal plane is a segment of involute. It can be understood that the base 211 is cylindrical, the axial direction of the base 211 can be regarded as perpendicular to the horizontal plane, the support leg 212 is distributed in a spiral shape on the axial direction of the base 211, and the projection of the support leg 212 on the horizontal plane coincides with the portion of the trajectory of the point K on the straight line when the straight line rolls purely on the cylindrical base 211 that is connected to the base 211.

[0041] In this embodiment, the driving component can be installed on the machine body 110 of the cleaning device 100, so that the driving component can drive the base 211 to rotate relative to the machine body 110, and then drive the support legs 212 connected to the peripheral side of the base 211 to move synchronously, so that the support legs 212 can guide debris and other sundries outside the roller brush area into the roller brush area of ​​the cleaning system 150, thereby achieving the function of auxiliary cleaning and improving the cleaning effect of the cleaning device 100.

[0042] Among them, the horizontal plane can be regarded as perpendicular to the rotation axis of the side brush body 210. Since the support foot 212 is spiral, the projection of the support foot on the horizontal plane is a spiral involute. In this way, during the rotation of the side brush body 210, hair, thread and other debris wrapped around the support foot 212 will move along the rotating, spiral support foot 212 and will be tightly wrapped around the support foot 212. As the side brush body 210 continues to rotate, the force of the debris wrapping around the support foot 212 will increase. The support foot 212 is set as an elastic part. When the wrapping force of the debris on the support foot 212 reaches the limit value that the elastic support foot 212 can withstand, the support foot 212 will undergo elastic deformation to bounce off the debris wrapped around the support foot 212, reducing the possibility of entanglement of hair, thread and other debris, thereby reducing the frequency of users cleaning the side brush assembly 200, and extending the replacement cycle of the side brush assembly 200, reducing usage costs, and improving user experience.

[0043] Furthermore, the number of legs 212 is at least one, and the number of legs 212 can be one, two, three, four, or any other number. The number of legs 212 can be appropriately set based on the size of the legs 212 and the size of the base 211. It is understood that at least two legs 212 have the same spiral direction. Specifically, as shown in Figures 3, 4, and 5, the number of legs 212 is three.

[0044] In some possible embodiments provided in the present application, the rotation direction of the side brush body 210 is configured to be opposite to the spiral direction of the support foot 212 .

[0045] This arrangement enables the side brush assembly 200 to effectively guide debris and other debris outside the roller brush area into the roller brush area of ​​the cleaning system 150, thereby improving the cleaning effect.

[0046] At the same time, since the projection of the spiral support leg 212 on the horizontal plane is a spiral involute, and the rotation direction of the side brush body 210 is configured to be opposite to the spiral direction of the support leg 212, that is, during the rotation of the side brush body 210, the direction of the inertial force of the debris on the support leg 212 is roughly opposite to the direction of the spiral involute of the support leg 212. In this way, the hair, thread and other debris wrapped around the support leg 212 will move along the direction of the spiral involute extending from the support leg 212 toward the direction of the rotation axis of the base 211 due to the action of the inertial force during the rotation of the side brush body 210, so as to be wrapped around the support leg 212. As the side brush body 210 continues to rotate, the force of debris wrapping around the support foot 212 will increase. This can shorten the time it takes for the entanglement force of debris on the support foot 212 to reach the limit value that the elastic support foot 212 can withstand, so that the entanglement force of debris on the support foot 212 can quickly reach the limit value that the elastic support foot 212 can withstand. As a result, the elastic deformation of the support foot 212 will bounce off the hair, thread and other debris wrapped around the support foot 212, reducing the possibility of entanglement of hair, thread and other debris, thereby reducing the frequency of users cleaning the side brush assembly 200, and extending the replacement cycle of the side brush assembly 200, reducing usage costs, and improving user experience.

[0047] Specifically, in the side brush assembly of the related art, the legs are usually distributed in a straight line around the base, and the bristles are connected to the ends of the legs. In the side brush assembly of this structure, hair, thread and other debris are easily entangled, which makes the front end of the bristles easily deformed, affecting the cleaning effect. Therefore, under normal circumstances, the side brush assembly needs to be replaced as a whole every 3 to 6 months. In contrast, the side brush assembly 200 provided in the embodiment of the present application has spiral legs 212 distributed in an involute manner around the base 211, and the rotation direction of the side brush body 210 is opposite to the spiral direction of the legs 212. As a result, hair, thread and other debris entangled on the legs 212 can be bounced off, reducing the possibility of hair, thread and other debris being entangled, extending the cleaning cycle and service life of the side brush assembly 200, greatly reducing the cost of use, and improving the user experience.

[0048] In some possible embodiments provided herein, the side brush assembly 200 further includes bristles 220, which are connected to the legs 212 and located at the end of the legs 212 away from the base 211. Thus, the driving assembly can drive the base 211 to rotate relative to the machine body 110. Since the bristles 220 are connected to the legs 212 on the periphery of the base 211, the bristles 220 can rotate synchronously with the base 211 to guide debris and other debris outside the roller brush area into the roller brush area of ​​the cleaning system 150, thereby achieving auxiliary cleaning and improving the cleaning effect of the cleaning device 100.

[0049] Among them, the bristles 220 are located below the base 211. In this way, when the bristles 220 interfere with the surface to be cleaned and are deformed, the base 211 will be located above the surface to be cleaned and will not interfere with the surface to be cleaned, thereby ensuring that the side brush body 210 can rotate reliably under the drive of the driving component to ensure a good cleaning effect.

[0050] In other words, the side brush assembly 200 provided in the embodiment of the present application can simplify the arrangement of the bristles 220 and utilize the support legs 212 on the side brush body 210 to perform an auxiliary cleaning function, thereby reducing manufacturing costs. Alternatively, the side brush assembly 200 can include the bristles 220 to ensure a good cleaning effect. At the same time, compared with the support legs 212, the bristles 220 produce less noise when contacting the surface to be cleaned, which is conducive to improving user comfort.

[0051] As shown in Figures 3, 4 and 5, in some possible embodiments provided in the present application, the top of the base 211 is configured as a connection side 2111 connected to the drive assembly, that is, the drive assembly is located above the base 211, that is, the entire side brush assembly 200 is located at the bottom of the machine body 110 to interfere with the surface to be cleaned.

[0052] The base 211 is provided with a limiting boss 213 on its circumferential side. This boss 213 is located below the top of the base 211, that is, below the connecting side 2111. This prevents debris from moving or swaying from the bottom of the base 211 toward the connecting side 2111. The presence of the limiting boss 213 prevents debris such as hair and thread from entangled upward along the circumferential sidewalls of the base 211, reducing the possibility of debris entering the drive assembly through the connecting side 2111 of the base 211 and causing drive assembly failure. This, in turn, helps extend the service life and improve the reliability of the drive assembly.

[0053] Specifically, the drive assembly can be a motor, and the base 211 is connected to the output shaft of the motor. When the motor rotates, the output shaft drives the base 211 to rotate synchronously, thereby driving the entire side brush assembly 200 to rotate. When hair, thread, or other debris is entangled in the side brush assembly 200, if the hair, thread, or other debris is twisted upward along the circumferential sidewalls of the base 211 and then wrapped around the output shaft through the connecting side 2111, the output shaft may become stuck, thereby affecting the reliability of the motor. The provision of the limiting boss 213 in the present application can greatly reduce the occurrence of this problem, thereby extending the service life of the motor.

[0054] Furthermore, at least the support leg 212 is configured as an elastic member. By configuring the support leg 212 as an elastic member, hair, thread, or other debris entangled around the support leg 212 will cause the support leg 212 to be deformed by force. For example, the support leg 212 will contract in the direction of the spiral line under the action of the hair, thread, or other debris. The limiting boss 213 located on the side of the base 211 will restrict the hair, thread, or other debris from continuing to entangle upward, preventing the debris from entering the drive assembly and damaging the drive assembly, thereby increasing the service life of the drive assembly. When the force exerted by the hair, thread, or other debris entangled around the support leg 212 reaches a limit value of the support leg 212, the support leg 212 will deform and directly bounce the hair, thread, or other debris away, thereby achieving an anti-entanglement effect. The bounced debris will fall into the roller brush cleaning area under the action of the side brush assembly 200 and be recovered in the dust box.

[0055] Furthermore, the legs 212 and the base 211 can be integrally formed, that is, the base 211 can also be an elastic member. The integral formation of the legs 212 and the base 211 facilitates processing, facilitates mass production, and helps reduce manufacturing costs. It is understandable that in other examples, the legs 212 and the base 211 can also be made of different materials.

[0056] As shown in Figures 3, 4, and 5, in some possible embodiments provided herein, the limiting boss 213 corresponds to the support leg 212, and the projection of the limiting boss 213 on the horizontal plane is close to the connection position between the support leg 212 and the base 211. For example, the support leg 212 includes a first end 2121 and a second end 2122, the first end 2121 is connected to the base 211, and the second end 2122 is connected to the bristles 220; the projection of the limiting boss 213 on the horizontal plane is located on the side of the first end 2121 close to the second end 2122.

[0057] That is, a limiting boss 213 is provided near the first end 2121 of each support leg 212, and the limiting boss 213 is located on a side of the first end 2121 close to the second end 2122. When the driving assembly drives the side brush body 210 to rotate, most debris (such as debris, hair, and thread, etc.) will extend in a direction away from the base 211 under the guidance of the support legs 212, or the bristles 220 and the support legs 212, so as to move the debris and other debris into the roller brush area of ​​the cleaning system 150. A small amount of debris (such as hair, thread, etc.) will move along the support legs 212 from the second end 2122 to the first end 2121, with a movement tendency close to the connecting side 2111. Therefore, the present application sets a limiting boss 213 near the first end 2121 of each support leg 212, and uses the limiting boss 213 to limit the continued upward movement of debris that moves from the second end 2122 of the support leg 212 to the vicinity of the first end 2121, so that the debris can be reliably restricted below the limiting boss 213, avoiding the possibility of debris entering the drive assembly through the connection side 2111 of the base 211 and causing drive assembly failure, thereby improving the reliability of the drive assembly.

[0058] As shown in Figures 3, 4, and 5, in the above embodiment, the support leg 212 includes a first side surface 2123 near the top, that is, the support leg 212 includes a first side surface 2123 near the connection side 2111, the bottom of the limiting boss 213 is in contact with the first side surface 2123, and a guide surface 2131 is provided on the side of the limiting boss 213 away from the connection position of the support leg 212 and the base 211. The guide surface 2131 is inclined from the top to the bottom of the base 211 toward the connection position of the support leg 212 and the base 211. That is, the guide surface 2131 is provided on the side of the limiting boss 213 away from the first end 2121, and the guide surface 2131 is inclined from the top to the bottom of the base 211 toward the first end 2121.

[0059] The first side surface 2123 of the support leg 212 can be understood as the top of the support leg 212, that is, the side of the support leg 212 facing away from the surface to be cleaned, that is, the side of the support leg 212 facing upward. Most of the debris moving upward will move along the first side surface 2123 from the second end 2122 to the first end 2121, gradually approaching the connecting side 2111. Since the bottom of the limiting boss 213 is in contact with the first side surface 2123, the debris will be restricted by the bottom of the limiting boss 213 before reaching the first end 2121 during its movement from the second end 2122 to the first end 2121, and will not continue to approach the first end 2121, thereby achieving a limiting effect. At the same time, by setting a guide surface 2131 on the side of the limiting boss 213 away from the first end 2121, the guide surface 2131 is inclined from the top to the bottom of the base 211 toward the direction close to the first end 2121, so that debris can accumulate at the position of the guide surface 2131 and will not continue to move upward, so that the debris can be reliably limited below the limiting boss 213, thereby avoiding the possibility of debris entering the drive assembly through the connecting side 2111 of the base 211 and causing the drive assembly to malfunction, thereby extending the service life of the drive assembly and improving the reliability of the drive assembly.

[0060] As shown in Figures 3 and 5, in some possible embodiments provided herein, the base 211 includes a first section 2112 along the axial direction, and a second section 2113 located at the bottom of the first section 2112. The connecting side 2111 is located on a side of the first section 2112 away from the second section 2113, and the supporting legs 212 and the limiting boss 213 are arranged around the second section 2113. This arrangement ensures a certain distance between the connecting side 2111 and the supporting legs 212, and a certain distance between the connecting side 2111 and the limiting boss 213. This increases the distance between the drive assembly and the supporting legs 212, and the distance between the drive assembly and the limiting boss 213, further reducing the possibility of debris entering the drive assembly, thereby extending the service life of the drive assembly and improving the reliability of the drive assembly.

[0061] In some possible embodiments provided herein, the radius of the end where the spiral leg 212 connects to the base 211 ranges from 15 mm to 20 mm. That is, the distance between the first end 2121 of the leg 212 and the rotation axis of the base 211 ranges from 15 mm to 20 mm. Specifically, the radius of the end where the spiral leg 212 connects to the base 211 can be 15 mm, 17 mm, 18 mm, 19 mm, 20 mm, or other dimensions that meet requirements. The diameter of the end where the spiral leg 212 connects to the base 211 is shown as D1 in FIG. 3 .

[0062] The radius of the end of the spiral leg 212 away from the base 211 ranges from 55 mm to 60 mm, that is, the distance between the second end 2122 of the leg 212 and the rotation axis of the base 211 ranges from 55 mm to 60 mm. Specifically, the radius of the end of the spiral leg 212 away from the base 211 can be 55 mm, 56 mm, 58 mm, 59 mm, 60 mm, or other dimensions that meet the requirements. By reasonably setting the radius range of the end of the spiral leg 212 away from the base 211, it is possible to ensure that the side brush assembly 200 has a larger cleaning range, thereby ensuring a good cleaning effect. The diameter of the end of the spiral leg 212 away from the base 211 is shown as D2 in Figure 3.

[0063] The pitch of the spiral leg 212 ranges from 55 mm to 60 mm. Specifically, the pitch of the spiral leg 212 can be 55 mm, 56 mm, 58 mm, 59 mm, 60 mm, or other sizes that meet requirements. By properly setting the pitch of the spiral leg 212 and making the spiral shape of the leg 212 reasonable, the anti-entanglement effect can be better achieved, reducing the possibility of debris such as hair and thread becoming entangled in the leg 212, and improving the overall anti-entanglement effect of the side brush assembly 200.

[0064] The number of spiral turns of the spiral leg 212 is 0.7 to 0.8 turns. Specifically, the number of spiral turns of the spiral leg 212 can be 0.7, 0.73, 0.75, 0.78, 0.79, 0.8, or other numbers that meet the requirements. By properly setting the number of spiral turns of the spiral leg 212, the distance between the first end 2121 and the second end 2122 of the leg 212 is reasonable, and the spiral shape of the leg 212 is reasonable, which can better achieve the anti-entanglement effect, reduce the possibility of debris such as hair and thread being entangled in the leg 212, and improve the overall anti-entanglement effect of the side brush assembly 200.

[0065] The height of the side brush assembly 200 ranges from 45 mm to 50 mm. When the side brush assembly 200 includes bristles 220, the height of the side brush assembly 200 can be understood as the vertical distance between the connection side 2111 of the base 211 of the side brush assembly 200 and the bottom end of the bristles 220. That is, the vertical distance of the entire side brush assembly 200 can be 45 mm to 50 mm. When the side brush assembly 200 does not include bristles 220, the height of the side brush assembly 200 can be understood as the vertical distance between the connection side 2111 of the base 211 of the side brush assembly 200 and the bottom end of the support leg 212. Specifically, the vertical height of the side brush assembly 200 can be 45 mm, 46 mm, 48 mm, 49 mm, 50 mm, or other dimensions that meet the requirements. By properly setting the height of the side brush assembly 200, the support legs 212 or the bristles 220 connected to the support legs 212 can reliably interfere with the surface to be cleaned to achieve a good cleaning effect, and the friction force thereof is within a reasonable range and does not affect the flexibility of the movement of the cleaning device 100. The height of the side brush assembly 200 can be shown as H in FIG4 .

[0066] The direction of the spiral leg 212 is clockwise, and correspondingly, the drive assembly drives the side brush body 210 to rotate counterclockwise. It is understood that in other examples, the direction of the spiral involute can also be counterclockwise, and correspondingly, the drive assembly drives the side brush body 210 to rotate clockwise.

[0067] In other possible embodiments provided herein, the radius of the end where the spiral leg 212 connects to the base 211 ranges from 10 mm to 15 mm. That is, the distance between the first end 2121 of the leg 212 and the rotation axis of the base 211 ranges from 10 mm to 15 mm. Specifically, the radius of the end where the spiral leg 212 connects to the base 211 can be 10 mm, 11 mm, 13 mm, 14 mm, 15 mm, or other dimensions that meet requirements. The diameter of the end where the spiral leg 212 connects to the base 211 is shown as D1 in FIG. 3 .

[0068] The radius of the end of the spiral leg 212 away from the base 211 ranges from 60 mm to 70 mm, that is, the distance between the second end 2122 of the leg 212 and the rotation axis of the base 211 ranges from 60 mm to 70 mm. Specifically, the radius of the end of the spiral leg 212 away from the base 211 can be 60 mm, 62 mm, 65 mm, 68 mm, 70 mm, or other dimensions that meet the requirements. By reasonably setting the radius range of the end of the spiral leg 212 away from the base 211, it is possible to ensure that the side brush assembly 200 has a larger cleaning range, thereby ensuring a good cleaning effect. The diameter of the end of the spiral leg 212 away from the base 211 is shown as D2 in Figure 3.

[0069] The pitch of the spiral leg 212 ranges from 50 mm to 55 mm. Specifically, the pitch of the spiral leg 212 can be 50 mm, 51 mm, 53 mm, 54 mm, 55 mm, or other sizes that meet requirements. By properly setting the pitch of the spiral leg 212, the spiral shape of the leg 212 is reasonable, and has a good anti-entanglement effect, thereby reducing the possibility of debris such as hair and thread being entangled in the leg 212, and improving the overall anti-entanglement effect of the side brush assembly 200.

[0070] The number of spiral turns of the spiral leg 212 is 0.6 to 0.7 turns. Specifically, the number of spiral turns of the spiral leg 212 can be 0.6, 0.63, 0.65, 0.68, 0.69, 0.7, or other desired numbers. By properly setting the number of spiral turns of the spiral leg 212, the distance between the first end 2121 and the second end 2122 of the leg 212 is adjusted to a reasonable value, and the spiral shape of the leg 212 is adjusted to a reasonable value, thereby providing a good anti-entanglement effect, thereby reducing the possibility of debris such as hair and thread being entangled in the leg 212, and improving the overall anti-entanglement effect of the side brush assembly 200.

[0071] The height of the side brush assembly 200 ranges from 40 mm to 45 mm. When the side brush assembly 200 includes bristles 220, the height of the side brush assembly 200 can be understood as the vertical distance between the connection side 2111 of the base 211 of the side brush assembly 200 and the bottom end of the bristles 220. That is, the vertical distance of the entire side brush assembly 200 can be 40 mm to 45 mm. When the side brush assembly 200 does not include bristles 220, the height of the side brush assembly 200 can be understood as the vertical distance between the connection side 2111 of the base 211 of the side brush assembly 200 and the bottom end of the support leg 212. Specifically, the vertical height of the side brush assembly 200 can be 40 mm, 41 mm, 43 mm, 44 mm, 45 mm, or other dimensions that meet the requirements. By properly setting the height of the side brush assembly 200, the legs 212 or the bristles 220 can reliably interfere with the surface to be cleaned to achieve a good cleaning effect, and the friction force thereof is within a reasonable range and does not affect the flexibility of the cleaning device 100. The height of the side brush assembly 200 can be shown as H in FIG4 .

[0072] The direction of the spiral leg 212 is clockwise, and correspondingly, the drive assembly drives the side brush body 210 to rotate counterclockwise. It is understood that in other examples, the direction of the spiral involute can also be counterclockwise, and correspondingly, the drive assembly drives the side brush body 210 to rotate clockwise.

[0073] In the specific example provided in the present application, the radius of the end of the spiral support foot 212 connected to the base 211 is 17 mm; the radius of the end of the spiral support foot 212 away from the base 211 is 58 mm, the pitch of the spiral support foot 212 is 57.5 mm, and the number of spiral turns of the spiral support foot 212 is 0.75 turns. When the side brush assembly 200 includes bristles 220, the height of the side brush assembly 200 is 43 mm, and the direction of the spiral support foot 212 is clockwise. As a result, the side brush assembly 200 has a good anti-entanglement effect and can ensure a good cleaning effect.

[0074] In some possible embodiments provided herein, the bristles 220 can be connected to the support leg 212 by bonding. This ensures a secure connection between the bristles 220 and the support leg 212, reducing the risk of the bristles 220 falling off during operation of the side brush assembly 200 and improving the reliability and service life of the side brush assembly 200. Furthermore, the bristles can also be connected to the support leg 212 by plugging, snapping, mortise and tenon, or screwing, and this application does not impose any specific limitations on this.

[0075] Furthermore, as shown in FIG5 , a receiving groove 2124 is defined on the end surface of the leg 212 distal from the base 211. Specifically, the second end 2122 of the leg 212 has a receiving groove 2124 defined thereon. One end of the bristles 220 is received within the receiving groove 2124 and connected thereto via an adhesive, thereby securely bonding the bristles 220 to the end of the leg 212 distal from the base 211. Furthermore, because the receiving groove 2124 is located on the end surface of the leg 212 distal from the base 211, the sidewall between the two ends of the leg 212 is smoothly transitioned. Specifically, the sidewall between the first end 2121 and the second end 2122 of the leg 212 lacks grooves or protrusions for connecting the bristles, as in related art side brush assemblies. This prevents the possibility of hair, thread, and other debris being caught by grooves or protrusions, as in related art side brush assemblies.

[0076] In some possible embodiments provided herein, the side brush body 210 is made of rubber with a smooth surface. This rubber side brush body 210 can reduce the likelihood of hair and thread-like debris becoming entangled in the side brush body 210, thereby reducing the likelihood of hair and thread-like debris becoming entangled in the side brush assembly 200, thereby providing a good anti-entanglement effect. Furthermore, the rubber side brush body 210 has a certain degree of elasticity and good deformability, allowing the side brush body 210 to effectively and thoroughly deflect hair and thread-like debris entangled in the support legs 212, thereby providing a good anti-entanglement function. Furthermore, the rubber side brush body 210 allows the support legs 212 or bristles 220 to reliably interfere with the surface to be cleaned, ensuring a good cleaning effect. It also allows the friction between the support legs 212 or bristles 220 and the surface to be cleaned to be within an appropriate range, allowing the cleaning device 100 to move flexibly.

[0077] Furthermore, the hardness of the side brush body 210 is 75HB to 85HB. The hardness of the side brush body 210 is reasonably set so that the side brush body 210 has good elasticity and good wear resistance, thereby ensuring that the side brush body 210 has a good anti-entanglement effect and extending the service life of the side brush body 210. Specifically, the hardness of the side brush body 210 can be 75HB, 77HB, 80HB, 82HB, 84HB, 85HB, or other values.

[0078] In some possible embodiments provided herein, the base 211 is provided with a connection hole axially extending therefrom for connection to the drive assembly. It is understood that the side brush assembly 200 may further include a connector configured to pass through the connection hole and connect to the drive assembly. Thus, the side brush assembly 200 can be connected to the drive assembly via the connector, such that the drive assembly drives the side brush assembly 200 to rotate relative to the machine body 110.

[0079] Specifically, the connecting part can be a screw, and the driving assembly includes a motor. A threaded hole is provided on the output shaft of the motor. The screw passes through the connecting hole on the base 211 and is connected to the threaded hole on the output shaft, so that the side brush assembly 200 can be connected to the driving assembly. The operation is simple and easy to disassemble and assemble, thereby improving the maintenance efficiency and replacement efficiency of the side brush assembly 200 and facilitating user operation.

[0080] As shown in FIG2 , the cleaning device 100 provided by the present application has a side brush assembly 200 located at the bottom of the main body 110. Furthermore, the side brush assembly 200 can also be located in front of the dust box. Specifically, in the direction of travel of the cleaning device 100, the side brush assembly 200 is located in front of the dust box. In this way, during the travel of the cleaning device 100, the side brush assembly 200 located in front of the dust box will first guide debris outside the roller brush area toward the dust box, moving the debris into the roller brush area, and then allowing the roller brush to recycle the debris into the dust box, thereby improving the cleaning effect of the cleaning device 100.

[0081] In some examples provided herein, there can be one side brush assembly 200, located on the left or right side of the bottom of the main body 110. This allows the side brush assembly 200 to guide debris from the left or right front of the cleaning device 100 to the roller brush area, thereby ensuring that the cleaning device 100 has a good cleaning effect and reducing manufacturing costs, making it suitable for widespread application. Specifically, as shown in FIG2 , the side brush assembly 200 is located on the right front of the bottom of the main body 110.

[0082] In other examples provided in the present application, the number of side brush assemblies 200 can be two, and the two side brush assemblies 200 are distributed on the left and right sides of the bottom of the machine body 110. Thus, the two side brush assemblies 200 respectively guide debris from the left front or the front of the cleaning device 100 to the roller brush area, thereby greatly improving the cleaning effect of the cleaning device 100.

[0083] Furthermore, the spiral directions of the legs 212 of the two side brush assemblies 200 are opposite, with the legs 212 of each side brush assembly 200 spiraling from the outside to the inside relative to the main body 110. For example, the side brush assembly 200 located at the bottom right front of the main body 110 has its legs 212 spiraling in a clockwise direction, and the drive assembly drives the side brush assembly 200 to rotate counterclockwise. The side brush assembly located at the bottom left front of the main body 110 has its legs 212 spiraling in a counterclockwise direction, and the drive assembly drives the side brush assembly 200 to rotate clockwise.

[0084] The present application has been described through the above-described embodiments, but it should be understood that the above-described embodiments are for illustrative and illustrative purposes only and are not intended to limit the present application to the described embodiments. In addition, it will be understood by those skilled in the art that the present application is not limited to the above-described embodiments, and that various variations and modifications may be made based on the teachings of the present application, all of which fall within the scope of protection claimed in the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A side brush assembly, wherein: include: The side brush body includes a base and at least one support leg distributed around the base. The base is configured to be connected to a driving component of a cleaning device so that the driving component drives the side brush body to rotate. The support leg is spiral-shaped, and the projection of the support leg on the horizontal plane is a segment of an involute.

2. The side brush assembly according to claim 1, wherein: The side brush body is configured to rotate in a direction opposite to a spiral direction of the support leg.

3. The side brush assembly according to claim 1, wherein: A limiting boss is provided on the peripheral side of the base, and the limiting boss is located below the top of the base.

4. The side brush assembly according to claim 3, wherein: The limiting boss corresponds to the supporting foot, and the projection of the limiting boss on the horizontal plane is close to the connection position between the supporting foot and the base.

5. The side brush assembly according to claim 4, wherein: The support leg includes a first side surface located at the top, the bottom of the limiting boss is in contact with the first side surface, and a guide surface is provided on the side of the limiting boss away from the connection position between the support leg and the base, and the guide surface is inclined from the top to the bottom of the base toward the direction close to the connection position between the support leg and the base.

6. The side brush assembly according to claim 3, wherein: The base includes a first section and a second section located at the bottom of the first section along the axial direction. The top of the base is configured as a connecting side, which is located on the side of the first section away from the second section. The support feet and the limiting boss are arranged on the circumferential side of the second section.

7. The side brush assembly of claim 1, wherein: The radius of the end portion where the spiral leg is connected to the base is in the range of 15 mm to 20 mm; and / or The radius of the end of the spiral leg away from the base is in the range of 55mm to 60mm; and / or The pitch of the helical legs is in the range of 55 mm to 60 mm; and / or The number of turns of the helical leg is 0.7 to 0.8; and / or The height of the side brush assembly ranges from 45 mm to 50 mm.

8. The side brush assembly of claim 1, wherein: The radius of the end portion where the spiral leg is connected to the base is in the range of 10 mm to 15 mm; and / or The radius of the end of the spiral leg away from the base is in the range of 60 mm to 70 mm; and / or The pitch of the helical legs is in the range of 50 mm to 55 mm; and / or The number of spiral turns of the spiral leg is 0.6 to 0.7 turns; and / or The height of the side brush assembly ranges from 40 mm to 45 mm.

9. The side brush assembly of claim 1, wherein: Also includes: Bristles are connected to the support leg and are located at an end of the support leg away from the base.

10. The side brush assembly of claim 9, wherein: An accommodating groove is provided on the end surface of the end of the support leg away from the base, and one end of the bristle is accommodated in the accommodating groove and connected to the accommodating groove through an adhesive.

11. The side brush assembly of claim 1 , wherein: The support leg is an elastic member, and the hardness of the support leg ranges from 75HB to 85HB.

12. A cleaning device, wherein: include: A main body, and a side brush assembly according to any one of claims 1 to 11, wherein the side brush assembly is located at the bottom of the main body.

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