Side sweeping assembly and cleaning device

By designing the side-sweeping components with arc-shaped connecting arms and cleaning arms, centrifugal force is used to throw out hair and prevent it from getting tangled, solving the problem of hair easily getting tangled in the side-sweeping of robot vacuums, thus improving cleaning effect and service life.

CN224125854UActive Publication Date: 2026-04-17SHEN ZHEN 3IROBOTICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHEN ZHEN 3IROBOTICS CO LTD
Filing Date
2025-02-28
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The side sweeping function of a robot vacuum cleaner is prone to getting tangled with hair, which reduces its cleaning effectiveness and shortens its lifespan.

Method used

Design a side-sweeping component including an arc-shaped connecting arm and a cleaning arm. The arc-shaped concave direction is the same as the rotation direction. It uses centrifugal force to throw out tangled hair and uses a stop to prevent hair from getting tangled. The connecting arm is tilted to the main body to maintain effective contact.

Benefits of technology

It effectively prevents hair from getting tangled, ensures cleaning effectiveness, extends the service life of the cleaning arm, and improves cleaning efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a side sweeping assembly and a cleaning device. The side sweeping assembly comprises a main body, a connecting arm and a cleaning arm. The first end of the connecting arm is connected to the outer edge of the main body, the connecting arm is arranged in an arc shape, and the concave direction of the arc shape is the same as the rotating direction of the side sweeping assembly; the cleaning arms and the connecting arms are arranged in a one-to-one correspondence mode, the first ends of the cleaning arms are connected with the second ends of the connecting arms, and the second ends of the cleaning arms extend in the direction away from the connecting arms. The problem that in the prior art, hair is easily wound around a side sweeper of a sweeping robot can be solved.
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Description

Technical Field

[0001] This application relates to the field of cleaning equipment technology, and more specifically, to a side-sweeping component and a cleaning device. Background Technology

[0002] Robotic vacuum cleaners and cleaning base stations, as a new type of cleaning appliance, are very convenient to use and are especially favored by users because they have practical functions such as self-cleaning, automatic garbage transfer, and automatic recharging.

[0003] Currently, most robotic vacuum cleaners are equipped with side sweepers, which can clean dust and small debris in many hard-to-reach areas, resulting in high cleaning efficiency. During operation, the side sweepers are driven by motors. However, a large amount of hair easily gets tangled on the side sweepers during cleaning, reducing their cleaning effectiveness and shortening their lifespan. Utility Model Content

[0004] The main purpose of this application is to provide a side-sweeping component and cleaning device to solve the problem that hair is easily tangled in the side-sweeping of existing robotic vacuum cleaners.

[0005] According to one aspect of this application, an edge scan component is provided, comprising:

[0006] main body;

[0007] The connecting arm includes at least one, the first end of the connecting arm is connected to the outer edge of the main body, and the connecting arm is arc-shaped, the concave direction of the arc is the same as the rotation direction of the side sweeper assembly;

[0008] The cleaning arm includes at least one, and the cleaning arm is provided in a one-to-one correspondence with the connecting arm. The first end of the cleaning arm is connected to the second end of the connecting arm, and the second end of the cleaning arm extends in a direction away from the connecting arm.

[0009] Furthermore, the main body has a first plane parallel to its own thickness direction, the first plane dividing the main body into a first side and a second side, the connecting arm includes a plurality of them, the plurality of connecting arms are spaced apart along the outer periphery of the main body, and the first end of the plurality of connecting arms is located on the first side or the second side.

[0010] Furthermore, within the projection along the thickness direction of the main body, the projection of the main body includes a circle;

[0011] In the two adjacent connecting arms, the line connecting the first end of one of the two connecting arms to the center of the main body is the first connecting line, and the line connecting the first end of the other of the two connecting arms to the center of the main body is the second connecting line. The included angle A between the first connecting line and the second connecting line satisfies the relationship: 45°≤A≤50°.

[0012] Furthermore, within the projection along the thickness direction of the main body, the projection of the connecting arm includes an arc surface. An arc edge is provided on the side of the arc surface near the center of the circle containing the arc surface. The arc edge has a first endpoint away from the main body and a second endpoint intersecting the outer edge of the main body. The line connecting the first endpoint and the center of the circle is a third line, and the line connecting the second endpoint and the center of the circle is a fourth line. The angle θ between the third line and the fourth line satisfies the relationship: 70°≤θ≤130°.

[0013] Furthermore, the main body has a second plane perpendicular to its own thickness direction, and the distance between the connecting arm and the second plane gradually increases along the direction from the first end of the connecting arm to the second end of the connecting arm.

[0014] Furthermore, the angle B between the connecting arm and the second plane satisfies the following relationship: 40°≤B≤80°.

[0015] Furthermore, a stop is provided between the second end of the connecting arm and the first end of the cleaning arm.

[0016] Furthermore, the stop portion includes a stop protrusion, which is disposed at the second end of the connecting arm and protrudes from the bottom of the connecting arm, and the side of the stop protrusion near the cleaning arm is flush with the second end of the connecting arm (20).

[0017] Furthermore, within the projection along the thickness direction of the body, the projection of the body includes a circle, and among the tangents tangent to the circle, at least one of the tangents is parallel to the extension line of the cleaning arm.

[0018] On the other hand, this application also provides a cleaning device, which includes the aforementioned side-sweeping assembly.

[0019] When the side-sweeping component of this application is installed on a cleaning device, such as a robotic vacuum cleaner, the motor on the cleaning device connects to the main body and drives the main body to rotate. This causes the connecting arm and the cleaning arm to rotate synchronously. When the cleaning arm rotates, it can clean the edges of the space. At the same time, since the connecting arm in this application is arc-shaped, and the concave direction of the arc is the same as the rotation direction of the side-sweeping component, if hair is wrapped around the cleaning arm during the rotation of the side-sweeping component, a centrifugal force will be generated on the hair in the opposite direction of the rotation direction of the side-sweeping component. The hair will be thrown off under the action of centrifugal force, thereby preventing hair from getting tangled on the cleaning arm, effectively ensuring the cleaning effect of the cleaning arm, and extending the service life of the cleaning arm. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0021] Figure 1 This is a schematic diagram of the structure of the edge scanning component disclosed in the embodiments of this application;

[0022] Figure 2 This is a top view of the edge scanning component disclosed in the embodiments of this application;

[0023] Figure 3 This is a bottom view of the edge scanning component disclosed in the embodiments of this application;

[0024] Figure 4 This is a side view of the edge scanning component disclosed in an embodiment of this application.

[0025] The above figures include the following reference numerals:

[0026] 10. Main body; 101. First side; 102. Second side; 103. Tangent; 11. Connecting part; 20. Connecting arm; 201. First connecting line; 202. Second connecting line; 203. Third connecting line; 204. Fourth connecting line; 21. Arc surface; 22. Arc edge; 221. First endpoint; 222. Second endpoint; 30. Cleaning arm; 301. Extension line; 40. Stop part; 41. Stop protrusion. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0029] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0030] As mentioned in the background section, existing robotic vacuum cleaners often have their side brushes entangled with a large amount of hair during operation, reducing their cleaning effectiveness and shortening their lifespan. To address this, the inventors of this application have designed a novel side brush assembly that solves the problem of hair entanglement in the side brushes of existing robotic vacuum cleaners. The side brush assembly of this application will be described in detail below with reference to the accompanying drawings.

[0031] It should be noted that the "rotation direction of the side scan component" in this application refers to the attached... Figure 2 The direction indicated by the letter X; "thickness direction of body 10" refers to the attached... Figure 4 The direction indicated by the letter Y.

[0032] See Figures 1 to 4 As shown, according to an embodiment of this application, a side-sweeping assembly is provided, which includes a main body 10, a connecting arm 20, and a cleaning arm 30.

[0033] The connecting arm 20 includes at least one, the first end of the connecting arm 20 is connected to the outer edge of the main body 10, and the connecting arm 20 is arc-shaped, the concave direction of the arc is the same as the rotation direction of the side sweeper assembly; the cleaning arm 30 includes at least one, the cleaning arm 30 is arranged in a one-to-one correspondence with the connecting arm 20, and the first end of the cleaning arm 30 is connected to the second end of the connecting arm 20, and the second end of the cleaning arm 30 extends in a direction away from the connecting arm 20.

[0034] When the side-sweeping component of this application is installed on a cleaning device, such as a robotic vacuum cleaner, the motor on the cleaning device is connected to the main body 10 and drives the main body 10 to rotate. This causes the connecting arm 20 and the cleaning arm 30 to rotate synchronously. When the cleaning arm 30 rotates, it can clean the edges of the space. At the same time, since the connecting arm 20 in this embodiment is arc-shaped, and the concave direction of the arc is the same as the rotation direction of the side-sweeping component, if hair is wrapped around the cleaning arm 30 during the rotation of the side-sweeping component, a centrifugal force will be generated on the hair in the opposite direction to the rotation direction of the side-sweeping component. The hair will be thrown off under the action of centrifugal force, thereby preventing hair from getting tangled on the cleaning arm 30, effectively ensuring the cleaning effect of the cleaning arm 30, and extending the service life of the cleaning arm 30.

[0035] Combined again Figures 2 to 3 As shown, the main body 10 in this embodiment is generally arranged in a columnar block structure. This columnar block can be a cylindrical block, a prism block, or other irregularly shaped block, etc. Figure 2 The diagram shows the case where the main body 10 is a cylindrical block structure. In actual connection, the connecting arm 20 is connected to the outer edge of the cylindrical block.

[0036] Further, see Figures 1 to 2 As shown, in order to facilitate the connection between the side-sweeping component and the motor shaft, the main body 10 of this embodiment is provided with a connecting part 11 for connecting to a predetermined shaft (i.e., the motor shaft). Exemplarily, the connecting part 11 may be a connecting hole or a connecting groove, etc.

[0037] Furthermore, in this embodiment, the cleaning arm 30 includes multiple bristles, with the first end of each bristle connected to the second end of the connecting arm 20. Specifically, in this embodiment, the second ends of the multiple bristles are fixedly connected as a single unit, i.e., the bristles are a single structure. This design prevents the cleaning arm 30 from opening when it contacts the ground and from picking up hair when it leaves the ground.

[0038] Further, see Figure 2 As shown, the main body 10 in this embodiment has a first plane parallel to its own thickness direction (with... Figure 2The E plane is the first plane, which divides the main body 10 into a first side 101 and a second side 102. The connecting arm 20 includes multiple connecting arms 20, which are spaced apart along the outer periphery of the main body 10, and the first end of each of the multiple connecting arms 20 is located on the first side 101 or the second side 102.

[0039] Specifically, since the multiple connecting arms 20 in this embodiment are all located on the same side of the main body 10, and the first end of the cleaning arm 30 is connected to the second end of the connecting arm 20, compared with the structure in the prior art where multiple connecting arms 20 are spaced apart along the circumference of the main body 10, the cleaning arm 30 in this embodiment can concentrate the garbage on the first side 101 or the second side 102 of the main body 10 during the rotation of the side sweeping assembly, thereby preventing the garbage from being distributed around the main body 10 and facilitating the collection of the cleaning device.

[0040] Further, see Figure 2 as well as Figure 4 As shown, in the projection along the thickness direction of the main body 10, the projection of the main body 10 in this embodiment includes a circle; in the two adjacent connecting arms 20, the line connecting the first end of one of the two connecting arms 20 to the center of the circle of the main body 10 is the first connecting line 201, and the line connecting the first end of the other of the two connecting arms 20 to the center of the circle of the main body 10 is the second connecting line 202. The included angle A between the first connecting line 201 and the second connecting line 202 (see...) Figure 2 As shown, the following relationship is satisfied: 45°≤A≤50°. For example, A can be set to 45°, 45.5°, 46°, 46.5°, 47°, 47.5°, 48°, 48.5°, 49°, 49.5°, 50°, etc.

[0041] Specifically, since the multiple connecting arms 20 in this embodiment are all located on the first side 101 or the second side 102 of the main body 10, when A is less than 45°, the included angle between adjacent connecting arms 20 is too small, which will cause the connecting arms 20 to be distributed too densely on the first side 101 or the second side 102 of the main body 10. This will not only increase material costs and manufacturing difficulty, but may also cause interference between two adjacent connecting arms 20, thereby affecting the normal operation of the cleaning arm 30. When A is greater than 50°, the larger included angle means that the number of connecting arms 20 that can be arranged on the first side 101 or the second side 102 of the main body 10 is relatively small. This will weaken the supporting and fixing effect of the connecting arms 20 on the main body 10 and reduce the overall structural strength of the side sweeper assembly.

[0042] Further, see Figure 2As shown, within the projection along the thickness direction of the main body 10, the projection of the connecting arm 20 includes an arc surface 21. An arc edge 22 is provided on the side of the circle containing the arc surface 21 near the center. This arc edge 22 has a first endpoint 221 away from the main body 10 and a second endpoint 222 intersecting the outer edge of the main body 10. The line connecting the first endpoint 221 and the center is a third line 203, and the line connecting the second endpoint 222 and the center is a fourth line 204. The angle θ between the third line 203 and the fourth line 204 satisfies the relationship: 70°≤θ≤130°. For example, θ can be set to 70°, 75°, 80°, 85°, 90°, 95°, 100°, 105°, 110°, 115°, 120°, 125°, 130°, etc. It should be noted that in this embodiment, the "center of the circle containing the arc surface 21" refers to the attached... Figure 2 Point O in the diagram.

[0043] Specifically, in this embodiment, the angle between the third and fourth connecting lines corresponds to the central angle of the arc edge 22. When θ is less than 70°, the central angles corresponding to each connecting arm 20 are small, resulting in a greater degree of bending of the connecting arm 20. Consequently, the area that the cleaning arm 30 can sweep during the rotation of the side sweeping assembly is relatively small, reducing the cleaning efficiency of the side sweeping assembly. When θ is greater than 130°, the central angles corresponding to each connecting arm 20 are large, resulting in a larger space occupied by the connecting arm 20. This is disadvantageous for a cleaning device like a robot vacuum cleaner that needs to move flexibly in confined spaces. It may cause the connecting arm 20 and the cleaning arm 30 of the side sweeping assembly to collide more easily with obstacles such as walls and furniture, thus affecting the normal operation of the cleaning device.

[0044] Further, see Figure 4 As shown, the main body 10 in this embodiment has a second plane perpendicular to its own thickness direction (with...). Figure 4 (The plane F is the second plane). Along the direction from the first end of the connecting arm 20 to the second end of the connecting arm 20, the distance between the connecting arm 20 and the second plane gradually increases. That is to say, when the side sweeper assembly of this application is installed on the cleaning device, the connecting arm is inclined towards the surface to be cleaned.

[0045] Specifically, since the distance between the connecting arm 20 and the second plane gradually increases in this embodiment, it can be ensured that the connecting arm 20 is tilted towards the surface to be cleaned, so that the cleaning arm 30 connected to the connecting arm 20 can maintain continuous and effective contact with the surface to be cleaned, thereby effectively improving the cleaning effect of the side sweeper assembly.

[0046] Further, see Figure 4 As shown, in this embodiment, the connecting arm 20 and the second plane (with) Figure 4The included angle B between plane F (which is the second plane) satisfies the relationship: 40°≤B≤80°. For example, B can be set to 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, etc.

[0047] Specifically, since the first end of the cleaning arm 30 is connected to the second end of the connecting arm 20, the angle between the cleaning arm 30 and the second plane can be controlled by setting the angle between the connecting arm 20 and the second plane in this embodiment. When B is less than 40°, the angle between the connecting arm 20 and the second plane is too small, causing the cleaning arm 30 to leave the surface to be cleaned during the rotation of the side sweeper assembly. It is difficult to ensure that the cleaning arm 30 always maintains contact with the surface to be cleaned, thus failing to effectively clean the dust and hair on the surface to be cleaned. When B is greater than 80°, although the cleaning arm 30 can always maintain contact with the surface to be cleaned, the large angle easily causes the second end of the cleaning arm 30 to tilt away from the surface to be cleaned. As a result, when the side sweeper assembly rotates, the friction between the second end of the cleaning arm 30 and the surface to be cleaned increases, leading to severe wear on the cleaning arm 30 and shortening its service life.

[0048] In other words, by ensuring that the angle B between the connecting arm 20 and the second plane of the main body 10 satisfies the relationship 40°≤B≤80°, this embodiment not only ensures that the cleaning arm 30 always maintains contact with the surface to be cleaned, thereby ensuring the cleaning effect of the side sweeping component, but also avoids severe wear of the cleaning arm 30 due to excessive friction to a certain extent, thus extending the service life of the cleaning arm 30.

[0049] Further, see Figure 1 As shown, a stop 40 is provided between the second end of the connecting arm 20 and the first end of the cleaning arm 30 in this embodiment. Through the function of the stop 40, hair can be stopped on the cleaning arm 30, preventing hair on the cleaning arm 30 from moving to the connecting arm 20 and the main body 10 as the side sweeping assembly rotates. This can prevent the motor shaft connected to the main body 10 from being entangled by hair and other debris and stopping, effectively improving the safety of the side sweeping assembly in this embodiment.

[0050] Further, see Figure 1As shown, the stop portion 40 in this embodiment includes a stop protrusion 41, which is disposed at the second end of the connecting arm 20 and protrudes from the bottom of the connecting arm 20. The side of the stop protrusion 41 near the cleaning arm 30 is flush with the end of the second end of the connecting arm 20. With this configuration, when hair wraps around the cleaning arm 30 and moves towards the connecting arm 20, it will be stopped by the stop protrusion 41 and accumulate at its end. This can limit the movement path of the hair to a certain extent, further preventing hair from moving from the cleaning arm 30 to the connecting arm 20 and the main body 10, effectively ensuring the normal operation of the side sweeper assembly. Optionally, in this embodiment, the stop protrusion 41 is integrally formed with the connecting arm 20. In actual processing, it is only necessary to make the stop protrusion 41 protrude from the bottom of the connecting arm 20, resulting in a simple structure that is easy to implement.

[0051] Of course, in other embodiments of this application, the stop part 40 may also be other structures such as a stop block that is welded, snapped or screwed to the second end of the connecting arm 20 or the first end of the cleaning arm 30. Any other modifications under the concept of this application are within the protection scope of this application.

[0052] Further, see Figure 2 as well as Figure 4 As shown, in the projection along the thickness direction of the body 10, the projection of the body 10 in this embodiment includes a circle, and among the tangents 103 that are tangent to the circle, at least one tangent 103 is parallel to the extension line 301 of the cleaning arm 30.

[0053] Specifically, when the extension line 301 of the cleaning arm 30 is parallel to at least one tangent line 103, the cleaning arm 30 can better cover the area around the main body 10 during rotation. Compared with the case where the extension line of the cleaning arm 30 is not parallel to the tangent line, the swing or movement range of the parallel cleaning arm 30 can more comprehensively sweep the area around the main body 10, reduce cleaning dead corners, and thus improve the overall cleaning efficiency.

[0054] Furthermore, the connecting arm 20 in this embodiment includes a soft rubber arm. Specifically, the soft rubber arm has good elasticity and flexibility. During the operation of the side sweeper assembly, when it encounters obstacles or uneven ground, the soft rubber arm can deform to a certain extent, thereby providing a buffering and protective function for the side sweeper assembly.

[0055] Furthermore, the cleaning arm 30 in this embodiment includes a nylon arm. Specifically, nylon has advantages such as high strength, good wear resistance, and ease of cleaning. In this embodiment, using a nylon arm as the cleaning arm 30 allows the cleaning arm 30 to withstand greater friction, facilitating the cleaning of dust and dirt in corners and edges, and also improving the structural strength of the cleaning arm 30, preventing wear during use. Of course, in other embodiments of this application, the cleaning arm 30 can also be a rubber arm or a plastic arm. Rubber or plastic arms have anti-static properties, preventing static electricity generated by friction between the cleaning arm 30 and hair from attracting hair to the cleaning arm 30.

[0056] Furthermore, to improve the structural strength and service life of the side-sweep assembly in this embodiment, the connecting arm 20 and the main body 10 are integrally injection molded, resulting in a stable and reliable structure. Of course, in other embodiments of this application, the connecting arm 20 and the main body 10 can also be connected by screwing, welding, or snap-fitting. Any other modifications within the scope of this application's concept are within the protection range of this application.

[0057] Similarly, in this embodiment, the cleaning arm 30 and the connecting arm 20 can also be connected by snap-fit, welding, screwing or integral injection molding.

[0058] On the other hand, this application also provides a cleaning device that includes the aforementioned side-sweeping assembly. Therefore, this cleaning device includes all the technical effects of the aforementioned side-sweeping assembly. Since the technical effects of the side-sweeping assembly have already been described in detail above, they will not be repeated here.

[0059] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0060] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0061] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An edge-scan assembly characterized by, include: Main body (10); Connecting arm (20), the connecting arm (20) includes at least one, the first end of the connecting arm (20) is connected to the outer edge of the main body (10), and the connecting arm (20) is arc-shaped, the concave direction of the arc is the same as the rotation direction of the side sweeper assembly; The cleaning arm (30) includes at least one, and the cleaning arm (30) is provided in a one-to-one correspondence with the connecting arm (20), and the first end of the cleaning arm (30) is connected to the second end of the connecting arm (20), and the second end of the cleaning arm (30) extends in a direction away from the connecting arm (20).

2. The side-scanning component according to claim 1, characterized in that, The main body (10) has a first plane parallel to its own thickness direction, the first plane divides the main body (10) into a first side (101) and a second side (102), the connecting arm (20) includes a plurality of them, the plurality of connecting arms (20) are arranged at intervals along the outer periphery of the main body (10), and the first end of the plurality of connecting arms (20) is located on the first side (101) or the second side (102).

3. The side-scanning component according to claim 2, characterized in that, Within the projection along the thickness direction of the body (10), the projection of the body (10) includes a circle; In the two adjacent connecting arms (20), the line connecting the first end of one of the two connecting arms (20) to the center of the main body (10) is the first connecting line (201), and the line connecting the first end of the other connecting arm (20) to the center of the main body (10) is the second connecting line (202). The included angle A between the first connecting line (201) and the second connecting line (202) satisfies the relationship: 45°≤A≤50°.

4. The side-scanning assembly according to claim 1, characterized in that, In the projection along the thickness direction of the main body (10), the projection of the connecting arm (20) includes an arc surface (21). An arc edge (22) is provided on the side of the arc surface (21) near the center of the circle in which the arc surface (21) is located. The arc edge (22) has a first endpoint (221) away from the main body (10) and a second endpoint (222) intersecting with the outer edge of the main body (10). The line connecting the first endpoint (221) and the center of the circle is a third line (203), and the line connecting the second endpoint (222) and the center of the circle is a fourth line (204). The included angle θ between the third line (203) and the fourth line (204) satisfies the relationship: 70°≤θ≤130°.

5. The side-scan assembly according to any one of claims 1 to 4, characterized in that, The main body (10) has a second plane perpendicular to its own thickness direction. Along the direction from the first end of the connecting arm (20) to the second end of the connecting arm (20), the distance between the connecting arm (20) and the second plane gradually increases.

6. The side-scanning assembly according to claim 5, characterized in that, The angle B between the connecting arm (20) and the second plane satisfies the following relationship: 40°≤B≤80°.

7. The side-scan assembly according to any one of claims 1 to 4, characterized in that, A stop (40) is provided between the second end of the connecting arm (20) and the first end of the cleaning arm (30).

8. The side-scanning assembly according to claim 7, characterized in that, The stop portion (40) includes a stop protrusion (41), which is disposed at the second end of the connecting arm (20) and protrudes from the bottom of the connecting arm (20). The side of the stop protrusion (41) near the cleaning arm (30) is flush with the end of the second end of the connecting arm (20).

9. The side-scan assembly according to any one of claims 1 to 4, characterized in that, In the projection along the thickness direction of the body (10), the projection of the body (10) includes a circle, and among the tangents (103) tangent to the circle, at least one of the tangents (103) is parallel to the extension line (301) of the cleaning arm (30).

10. A cleaning device, characterized in that, The cleaning device includes the side-sweeping assembly as described in any one of claims 1 to 9.