Side brush assembly and cleaning robot

Abstract

The utility model discloses a cleaning robot and a side brush assembly for the cleaning robot. The side brush assembly comprises a supporting part and a driving device. The driving device is connected with the supporting part and used for driving the supporting part to rotate; the supporting part moves in the direction away from the ground when colliding with an obstacle. Thus, in the process that the driving device drives the supporting part to rotate, after the supporting part collides with the obstacle, the supporting part can move in the direction away from the ground under the collision effect of the obstacle, so that the supporting part can climb over the obstacle, the probability that the supporting part extrudes and collides with the ground can be reduced, and therefore abrasion of the supporting part caused by collision is reduced; and the service life of the side brush assembly is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cleaning robot technical field especially relates to a side brush subassembly and cleaning robot. BACKGROUND

[0002] The cleaning robot is an automatic equipment, it can automatically execute cleaning task, such as sweeping, mopping etc. The cleaning robot includes side brush subassembly, and the side brush subassembly is used to sweep the dust of edge and corner to the dust collection port of cleaning robot, so as to facilitate dust collection.

[0003] The side brush subassembly includes driving device and support part, and the driving device is used to drive the support part to rotate to execute cleaning task. In the process of executing cleaning task, the support part will meet the obstacle. When the support part collides with the obstacle, it will be extruded, collide with the ground, thereby reducing the service life of the side brush subassembly. SUMMARY

[0004] The utility model provides a side brush subassembly and cleaning robot to solve at least one technical problem existing above.

[0005] The side brush subassembly of the utility model embodiment is used for cleaning robot, and the side brush subassembly includes support part and driving device. The driving device is connected with the support part, and the driving device is used to drive the support part to rotate, and the support part moves towards the direction away from the ground when colliding with the obstacle.

[0006] Therefore, in the process that the driving device drives the support part to rotate, after the support part collides with the obstacle, the support part can move towards the direction away from the ground under the collision of the obstacle, so as to be able to climb over the obstacle, which can reduce the probability of extrusion and collision of the support part with the ground, thereby reducing the abrasion of the support part caused by collision and prolonging the service life of the side brush subassembly.

[0007] In some embodiments, the support part includes a base and a connecting part, the driving device is configured to drive the base to rotate, and the connecting part is connected with the base and moves towards the direction away from the ground when colliding with the obstacle.

[0008] In some embodiments, the connecting part includes a first side and a second side opposite to the first side, the first side is located on one side of the connecting part close to the obstacle, and the strength of the first side is greater than that of the second side.

[0009] In some embodiments, the first side includes a first contact surface, and the first contact surface is arranged on one side of the first side close to the ground in the vertical direction, and the first contact surface has a first included angle with the vertical direction.

[0010] In some embodiments, the first included angle is in the range of [6°, 10°].

[0011] In some embodiments, the first side further comprises a second contact surface, the second contact surface is connected with the first contact surface, in the vertical direction, the second contact surface is located above the first contact surface, the second contact surface has a second included angle with the vertical direction, the second included angle is greater than the first included angle.

[0012] In some embodiments, in the vertical direction, the highest point of the first side is higher than the highest point of the second side.

[0013] In some embodiments, the connecting portion further comprises a connecting surface connecting the first side and the second side, the connecting surface has a third included angle with the horizontal direction, the third included angle is in the range of [20°, 45°].

[0014] In some embodiments, the connecting portion comprises a first part and a second part connected with the first part, the first part is located between the second part and the base, the second part is used to contact the obstacle, a first connecting area is formed between the first part and the base, a second connecting area is formed between the first part and the second part, the distance between the first connecting area and the second connecting area is B, the size of the first part in the first direction is C, C / 6≤B≤C / 2.

[0015] The size of the first part gradually decreases from the first connecting area to the second connecting area, the size of the first connecting area in the second direction is E, the size of the second connecting area in the second direction is D, 1.2D≤E≤2D, the first direction and the second direction intersect.

[0016] In some embodiments, the edge brush assembly further comprises a cleaning piece, the cleaning piece is fixedly connected with the support portion, the driving device is configured to drive the support portion to move between a first position and a second position, in the case that the support portion is located at the first position, the cleaning piece is in contact with the ground, in the case that the support portion is located at the second position, the cleaning piece is separated from the ground, in the case that the support portion is located at the second position, the support portion is spaced from the obstacle.

[0017] In some embodiments, the driving device is configured to drive the support portion to rotate in a third direction to position the support portion in the first position, and to drive the support portion to rotate in a fourth direction to position the support portion in the second position; during rotation of the support portion in the third direction, the support portion is configured to move away from the ground under the impact of the obstacle, and during rotation of the support portion in the fourth direction, the support portion is spaced apart from the obstacle.

[0018] In some embodiments, the side brush assembly further comprises a lifting assembly, the support portion is movably mounted on the lifting assembly, and the lifting assembly is configured to rotate together with the support portion when the support portion rotates in the third direction, and the lifting assembly is configured to stop rotating and move the support portion away from the ground relative to the lifting assembly to space the cleaning member away from the ground when the support portion rotates in the fourth direction.

[0019] In some embodiments, the lifting assembly comprises a fixed cover and a floating cover, the support portion is movably mounted between the fixed cover and the floating cover, the fixed cover is provided with a lifting portion, and the floating cover is provided with a recess portion, the lifting portion and the recess portion define a track for the support portion to move in when the floating cover is mounted on the fixed cover, and the support portion moves along the track to space the cleaning member away from the ground when the support portion is driven by the driving device to rotate in the fourth direction.

[0020] In some embodiments, the lifting assembly comprises a transmission shaft and a one-way bearing, one end of the transmission shaft is fixedly connected to the fixed cover, the other end of the transmission shaft is fixedly connected to the one-way bearing, and the one-way bearing is configured to rotate in the third direction and not to rotate in the fourth direction.

[0021] The cleaning robot of the present application comprises the side brush assembly of any one of the above embodiments.

[0022] The cleaning robot comprises the side brush assembly described above, and thus at least has all the beneficial effects of the side brush assembly described above, which will not be repeated here.

[0023] Additional aspects and advantages of the present application will be given in part in the following description, will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0024] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the following drawings, in which:

[0025] Figure 1 is a part structure schematic view of a cleaning robot according to an embodiment of the present application;

[0026] Figure 2 is a schematic view of an edge brush assembly according to an embodiment of the present application;

[0027] Figure 3 is a schematic view of an edge brush assembly according to another embodiment of the present application;

[0028] Figure 4 is a part enlarged view of the edge brush assembly of Figure 3

[0029] Figure 5 is a force analysis schematic view of a connecting portion and an obstacle according to an embodiment of the present application;

[0030] Figure 6 is a schematic view of an edge brush assembly according to still another embodiment of the present application;

[0031] Figure 7 is a sectional view of a cleaning robot according to an embodiment of the present application;

[0032] Figure 8 is a part enlarged view of the cleaning robot of Figure 7

[0033] Figure 9 is a part enlarged view of the cleaning robot of Figure 1

[0034] Figure 10 is a structure schematic view of a fixing cover according to an embodiment of the present application.

[0035] Explanation of Reference Signs:

[0036] Edge brush assembly 100; cleaning robot 1000; support portion 10; driving device 20; obstacle 200; ground 300; base 11; connecting portion 12; first side surface 120; second side surface 121; first contact surface 1200; second contact surface 1201; connecting surface 122; first portion 123; second portion 124; first connecting region 125; second connecting region 126; cleaning member 30; lifting assembly 40; fixing cover 41; floating cover 42; lifting portion 410; recessed portion 420; track 43; transmission shaft 44; one-way bearing 45; clasp spring 46. DETAILED DESCRIPTION

[0037] ​​​The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are merely intended to explain the present application, and are not to be understood as limiting the present application.

[0038] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0039] In the description of the present application, it should be noted that, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication or interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] In the present application, unless otherwise specifically defined and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or can include the contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the vertical direction of the first feature above and obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include the vertical direction of the first feature below and obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0041] The disclosure below provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0042] Please refer to Figure 1 The edge brush assembly 100 of the present application is used for a cleaning robot 1000, and the edge brush assembly 100 comprises a support part 10 and a driving device 20. The driving device 20 is connected with the support part 10, and the driving device 20 is used to drive the support part 10 to rotate. The support part 10 moves towards the direction away from the ground 300 when colliding with the obstacle 200.

[0043] In this way, during the process that the driving device 20 drives the support part 10 to rotate, after the support part 10 collides with the obstacle 200, the support part 10 can move towards the direction away from the ground 300 under the collision action of the obstacle 200, so as to be able to climb over the obstacle 200. This can reduce the probability of extrusion and collision between the support part 10 and the ground 300, thereby reducing the abrasion of the support part 10 caused by collision, prolonging the service life of the edge brush assembly 100.

[0044] Specifically, the cleaning robot 1000 can be a sweeping robot, a mopping robot, etc. The edge brush assembly 100 is an assembly used for cleaning the ground 300 in the cleaning robot 1000. The edge brush assembly 100 can be arranged on the side of the cleaning robot 1000 facing the ground 300.

[0045] The support part 10 is the main structure of the edge brush assembly 100. The support part 10 can transmit the power of the driving device 20. The support part 10 can be made of rubber, soft glue or other elastic materials, and the support part 10 can elastically deform during the collision with the obstacle 200, so as to be able to bend and move towards the direction away from the ground 300. After the collision with the obstacle 200 ends, the support part 10 can restore to the original state. The obstacle 200 can be furniture, a wall or any object that blocks the path of the cleaning robot 1000.

[0046] The driving device 20 is a powered device in the side brush assembly 100. The driving device 20 can include a motor, a gear box or other mechanical devices. The driving device 20 is used to drive the support 10 to rotate to realize the cleaning function of the side brush assembly 100. The driving device 20 and the support 10 can be directly connected or indirectly connected. For example, the output shaft of the driving device 20 can be directly connected with the support 10 through a shaft coupling, a flange or direct bolt fixation and the like. For another example, the driving device 20 can include a gear set for transmitting the power of the output shaft and being fixed with the support 10, so as to realize the driving of the driving device 20 to drive the support 10 to rotate.

[0047] Since the support 10 is close to the ground 300 when the cleaning robot 1000 performs the cleaning task. Therefore, in the process of driving the support 10 to rotate by the driving device 20, the support 10 can collide with the obstacle 200. When the support 10 collides with the obstacle 200, the obstacle 200 will exert a force on the support 10. If the support 10 moves towards the ground 300 under the collision of the obstacle 200, the side brush assembly 100 will be extruded and collided with the ground 300, thereby causing the side brush assembly 100 to be worn due to the collision. In the embodiment of the utility model, the support 10 can be elastically deformed in the process of colliding with the obstacle 200, so as to bend and move towards the direction away from the ground 300, the distance between the support 10 and the ground 300 is increased, thereby crossing the obstacle 200, so as to reduce the probability of extrusion and collision between the support 10 and the ground 300.

[0048] Please refer to Figure 2 In some embodiments, the support 10 includes a base 11 and a connecting part 12, the driving device 20 is configured to drive the base 11 to rotate, the connecting part 12 is connected with the base 11, and the connecting part 12 moves towards the direction away from the ground 300 when colliding with the obstacle 200.

[0049] In this way, the driving device 20 can drive the base 11 to rotate to drive the connecting part 12 to rotate. Since the base 11 and the connecting part 12 are different parts, the driving device 20 is less affected in the process of the connecting part 12 contacting the obstacle 200, which can reduce unnecessary power loss.

[0050] Specifically, the base 11 is a part of the support 10 for connecting the driving device 20. The base 11 is used to transmit the power of the driving device 20 to the support 10, so that the support 10 can rotate. The connecting part 12 is a part of the cleaning robot 1000 that can contact the obstacle 200 during the cleaning task. The number of the connecting part 12 can be multiple, and the multiple connecting parts 12 can be connected to the area of the base 11 away from the driving device 20, and the multiple connecting parts 12 can be arranged at intervals along the circumference of the base 11.

[0051] The base 11 and the connecting portion 12 can be integrally formed or separately formed. For example, the base 11 and the connecting portion 12 can be integrally formed by injection molding. The integrally formed structure can have higher strength because there is no joint or connecting point, thereby reducing potential weak points. Meanwhile, the integrally formed structure can reduce or eliminate subsequent assembly steps, thereby reducing assembly time and improving assembly efficiency.

[0052] For another example, the base 11 and the connecting portion 12 can be separately manufactured and then connected together by bonding, heat staking, or clamping. The separately formed structure is easy to maintain and replace. If one of the base 11 and the connecting portion 12 is damaged or needs to be replaced, only the damaged part needs to be disassembled and replaced, without replacing the entire assembly. Meanwhile, the separately formed structure allows different materials to be selected for different functional requirements. For example, the base 11 can be made of a high-strength material to stably transmit power from the driving device 20, and the connecting portion 12 can be made of a flexible or elastic material to deform and move away from the ground 300 when contacting the obstacle 200.

[0053] Referring to Figure 3 , Figure 4 and Figure 5 , in some embodiments, the connecting portion 12 includes a first side 120 and a second side 121 opposite to the first side 120, the first side 120 being located on the connecting portion 12 close to the obstacle 200, and the first side 120 having a strength greater than that of the second side 121.

[0054] In this way, the first side 120 is the side of the connecting portion 12 that collides with the obstacle 200. Since the first side 120 has a strength greater than that of the second side 121, the first side 120 is compressed and the second side 121 is stretched during the collision of the connecting portion 12 with the obstacle 200, so that the connecting portion 12 tends to deform or bend from the first side 120 to the second side 121.

[0055] Specifically, the first side 120 can be the collision side of the connecting portion 12 when contacting the obstacle 200. The second side 121 can be the non-collision side of the connecting portion 12 when contacting the obstacle 200.

[0056] Referring to Figure 3 , Figure 4 and Figure 5 , in some embodiments, the first side 120 includes a first contact surface 1200, the first contact surface 1200 being disposed on the first side 120 close to the ground 300 in the vertical direction v, and the first contact surface 1200 having a first included angle A with the vertical direction v.

[0057] Thus, the first included angle A can play a guiding role when colliding with the obstacle 200, so that the deformation or bending process of the first side surface 120 is more smooth.

[0058] In some embodiments, the first included angle A ranges from [6°, 10°]. The first included angle A can range from [6°, 9°], [6°, 8°], [6.5°, 7.5°], [7°, 7.5°], [8°, 10°], etc., and the first included angle A can be 6°, 6.5°, 7°, 7.5°, 8°, 10°, etc.

[0059] Thus, the smaller first included angle A helps the connecting part 12 to be lifted more easily when colliding, thereby reducing damage to the connecting part 12. Within this range, the connecting part 12 can be quickly lifted during contact with the obstacle 200, thereby reducing the contact time with the obstacle 200, thereby reducing the probability of wear of the connecting part 12 due to prolonged contact with the obstacle 200. In addition, within this range, the connecting part 12 has a better appearance, which is conducive to improving the aesthetics of the brush assembly 100.

[0060] Please refer to Figure 3 , Figure 4 and Figure 5 . In some embodiments, the first side surface 120 further comprises a second contact surface 1201, the second contact surface 1201 is connected with the first contact surface 1200, in the vertical direction v, the second contact surface 1201 is located above the first contact surface 1200, the second contact surface 1201 has a second included angle G with the vertical direction v, and the second included angle G is greater than the first included angle A.

[0061] Thus, since the first contact surface 1200 and the second contact surface 1201 have two different included angles with the vertical direction v, the connecting part 12 can achieve a gradual response to the collision of the obstacle 200. The first contact surface 1200 intersects the vertical direction v at a smaller first included angle A, and since the first contact surface 1200 is located below the second contact surface 1201, the first contact surface 1200 can first contact the obstacle 200, the first contact surface 1200 will be subjected to the oblique upward force N of the obstacle 200, so that the connecting part 12 can be lifted, thereby making the supporting part 10 move in the direction away from the ground 300 under the collision action of the obstacle 200.

[0062] Specifically, the first contact surface 1200 and the second contact surface 1201 can be two contact surfaces connected on the first side surface 120. The first contact surface 1200 and the second contact surface 1201 are both inclined with respect to the vertical direction v. When the connecting portion 12 collides with the obstacle 200, the connection between the first contact surface 1200 and the second contact surface 1201 first contacts the obstacle 200 and deforms. Since the strength of the first side surface 120 is greater than the strength of the second side surface 121, this makes the connecting portion 12 have a tendency to deform or bend from the first side surface 120 to the second side surface 121. Since the second included angle G is greater than the first included angle A, and the second contact surface 1201 is located above the first contact surface 1200, the first contact surface 1200 will first contact the obstacle 200, and the first contact surface 1200 can play a guiding role, so that the obstacle 200 exerts an obliquely upward force N on the first contact surface 1200, thereby enabling the connecting portion 12 to be lifted.

[0063] In some embodiments, in order to make the strength of the first side surface 120 greater than the strength of the second side surface 121, a groove or a hole can be provided on the second side surface 121 to further reduce the strength of the second side surface 121.

[0064] In some embodiments, in order to make the strength of the first side surface 120 greater than the strength of the second side surface 121, a higher-strength material can be used on the first side surface 120, and a material with a strength less than that of the material used on the first side surface 120 can be used on the second side surface 121.

[0065] Please refer to Figure 4 and Figure 5 In some embodiments, along the vertical direction v, the highest point of the first side surface 120 is higher than the highest point of the second side surface 121.

[0066] In this way, the connecting portion 12 is inclined and the height of the collision side is higher than that of the non-collision side, and the collision side and the non-collision side have a height difference, which makes the strength of the connecting portion 12 in the thickness direction asymmetric, so that the strength of the first side surface 120 is greater than that of the second side surface 121, thereby making the connecting portion 12 have a tendency to bend from the first side surface 120 to the second side surface 121, so as to facilitate the connecting portion 12 to be lifted when subjected to the obliquely upward force N of the obstacle 200.

[0067] Specifically, the highest point of the first side surface 120 refers to the highest position on the first side surface 120 measured along the vertical direction v. The highest point of the second side surface 121 refers to the highest position on the second side surface 121 measured along the vertical direction v.

[0068] Please refer to Figure 4 and Figure 5In some embodiments, the connecting portion 12 further comprises a connecting surface 122 connecting the first side surface 120 and the second side surface 121, the connecting surface 122 has a third included angle F with the horizontal direction h, the third included angle F ranges from 20° to 45°. The third included angle F can range from 20° to 44°, 25° to 40°, 30° to 35°, 35° to 40°, 30° to 45°, and the first included angle A can be 20°, 25°, 30°, 35°, 40°, 45°, etc.

[0069] In this range, the connecting portion 12 is more likely to be lifted when colliding with the obstacle 200, reducing damage to the connecting portion 12. In addition, in this range, the connecting portion 12 has a better appearance, which is conducive to improving the aesthetics of the brush assembly 100.

[0070] Specifically, the connecting surface 122 can be a flat surface or a curved surface. The connecting surface 122 is located between the first side surface 120 and the second side surface 121. The connecting surface 122 can connect the highest point of the first side surface 120 and the highest point of the second side surface 121. The connecting surface 122 has a third included angle F with the horizontal direction h, which indicates that the connecting surface 122 is inclined relative to the horizontal direction h, which makes the connecting portion 12 have a tendency to deform or bend from the first side surface 120 to the second side surface 121 when colliding with the obstacle 200.

[0071] Please refer to Figure 5 and Figure 6 In some embodiments, the connecting portion 12 comprises a first part 123 and a second part 124 connected to the first part 123, the first part 123 is located between the second part 124 and the base 11, the second part 124 is used to contact the obstacle 200, a first connecting area 125 is formed between the first part 123 and the base 11, a second connecting area 126 is formed between the first part 123 and the second part 124, the distance between the first connecting area 125 and the second connecting area 126 is B, the size of the first part 123 along the first direction is C, C / 6≤B≤C / 2;

[0072] The size of the first part 123 gradually decreases from the first connecting area 125 to the second connecting area 126, the size of the first connecting area 125 along the second direction is E, the size of the second connecting area 126 along the second direction is D, 1.2D≤E≤2D, and the first direction and the second direction intersect.

[0073] Wherein, the relationship between B and C can be C / 6≤B≤C / 3, C / 5≤B≤C / 4, C / 4≤B≤C / 3, C / 5≤B≤C / 3, C / 3≤B≤C / 2, etc. B can be C / 6, C / 5, C / 4, C / 3, C / 2, etc.

[0074] The relationship between D and E can be 1.2D≤E≤1.9D, 1.4D≤E≤1.8D, 1.5D≤E≤1.7D, 1.6D≤E≤1.9D, 1.8D≤E≤2D, etc. E can be 1.2D, 1.4D, 1.5D, 1.8D, 2D, etc.

[0075] In this way, the area of the connecting portion 12 close to the base 11 is larger, which makes the strength of the connecting portion 12 in the width direction asymmetric, so that the strength of the first side surface 120 is greater than that of the second side surface 121, thereby making the connecting portion 12 have a tendency to bend from the first side surface 120 to the second side surface 121, so that the connecting portion 12 can be lifted when subjected to the force N from the obstacle 200. Within the range of C / 6≤B≤C / 2 and 1.2D≤E≤2D, the second portion 124 is more likely to be lifted during the collision with the obstacle 200, reducing the damage to the second portion 124.

[0076] Specifically, the first portion 123 is the part of the connecting portion 12 close to the base 11. The second portion 124 is the part of the connecting portion 12 away from the base 11. The first connecting area 125 is the area where the first portion 123 connects with the base 11. The second connecting area 126 is the area where the first portion 123 connects with the second portion 124.

[0077] The first portion 123 and the second portion 124 can be integrally formed or separately formed. For example, the first portion 123 and the second portion 124 can be integrally formed by injection molding, so that the whole of the first portion 123 and the second portion 124 has higher strength, because the integrally formed structure has no joints or connecting points, thereby reducing potential weak points. At the same time, the integrally formed structure can reduce or eliminate subsequent assembly steps, thereby reducing assembly time and improving assembly efficiency.

[0078] For another example, the first portion 123 and the second portion 124 can be manufactured separately and then connected together by means of bonding, hot melt connection or clamping, etc. The separately formed structure is easy to maintain and replace. If one of the first portion 123 and the second portion 124 is damaged or needs to be replaced, only one of the components can be disassembled, without the need to replace the entire assembly.

[0079] The distance between the first connecting area 125 and the second connecting area 126 refers to the minimum distance between the first connecting area 125 and the second connecting area 126. The area between the first connecting area 125 and the second connecting area 126 is the main part of the first portion 123. The first direction can be the length direction of the connecting portion 12, or the extension direction of the connecting portion 12. The second direction can be the width direction of the connecting portion 12.

[0080] Please refer to Figure 1In some embodiments, the side brush assembly 100 further comprises a cleaning member 30 fixedly connected with the support 10, and the driving device 20 is configured to drive the support 10 to move between the first position and the second position, the cleaning member 30 is in contact with the ground 300 when the support 10 is in the first position, and the cleaning member 30 is separated from the ground 300 when the support 10 is in the second position, and the support 10 is spaced apart from the obstacle 200 when the support 10 is in the second position.

[0081] Thus, when the support 10 is in the first position, the contact of the cleaning member 30 with the ground 300 can ensure effective cleaning effect. When the support 10 is in the second position, the cleaning member 30 is separated from the ground 300, and the support 10 is spaced apart from the obstacle 200, which helps to reduce the probability of collision between the support 10 and the obstacle 200, thereby reducing the damage of the obstacle 200 to the support 10.

[0082] Specifically, the cleaning member 30 is a component on the side brush assembly 100 that directly contacts the ground 300 and performs the cleaning task, which can be a brush, a sponge, a cloth strip or other suitable components for cleaning the ground 300. The cleaning member 30 can be fixedly connected with the support 10 by means of adhesion, hot melt connection or other non-detachable connection. The cleaning member 30 can also be detachably connected with the support 10 by means of gaskets, sheet metal parts, bolts and other connecting elements.

[0083] The cleaning member 30 can be fixed at the end of the support 10. The cleaning member 30 can move with the support 10, thereby achieving cleaning of the ground 300. For example, the cleaning member 30 can rotate or move with the support 10. When the support 10 is in the first position, the cleaning member 30 is in contact with the ground 300, and the cleaning member can clean the ground 300. When the support 10 is in the second position, the cleaning member 30 is separated from the ground 300, and the cleaning member 30 can avoid liquid dirt such as sewage on the ground 300.

[0084] In one embodiment, one end of the support 10 is connected with an inclined surface. The driving device 20 drives the support 10 to move along the inclined surface, thereby moving the support 10 between the first position and the second position.

[0085] Please refer to Figure 1 In some embodiments, the driving device 20 is configured to drive the support 10 to rotate in a third direction to make the support 10 in the first position, and to rotate in a fourth direction to make the support 10 in the second position. During the rotation of the support 10 in the third direction, the support 10 is configured to move in a direction away from the ground 300 under the impact of the obstacle 200, and the support 10 is spaced apart from the obstacle 200 during the rotation of the support 10 in the fourth direction.

[0086] Thus, the driving device 20 drives the support part 10 to rotate to realize the contact or disengagement of the cleaning part 30 with the ground 300. In the process of rotating the support part 10 along the third direction, the support part 10 can move towards the direction away from the ground 300 under the impact of the obstacle 200, which can reduce the probability of extrusion and collision between the support part 10 and the ground 300 in the cleaning process. Meanwhile, since the cleaning part 30 is fixedly connected with the support part 10, the probability of extrusion and collision between the cleaning part 30 and the ground 300 can also be reduced.

[0087] In the process of rotating the support part 10 along the fourth direction, the support part 10 can be spaced from the obstacle 200, which can avoid the collision between the support part 10 and the obstacle 200 in the process of rotating the support part 10 along the fourth direction, thereby avoiding the extrusion and collision between the support part 10 and the ground 300.

[0088] Specifically, the third direction and the fourth direction are two opposite directions of the driving device 20. For example, the driving device 20 includes a motor, the third direction is the forward rotation direction of the motor, and the fourth direction is the reverse rotation direction of the motor. Alternatively, the third direction is the reverse rotation direction of the motor, and the fourth direction is the forward rotation direction of the motor. As shown in FIG. 1, the third direction is the direction shown by R1, and the fourth direction is the direction shown by R2. Figure 1

[0089] Since the third direction and the fourth direction are opposite directions, in the process of rotating the support part 10 along the third direction, the support part 10 can move towards the direction away from the ground 300 under the impact of the obstacle 200. In the process of rotating the support part 10 along the fourth direction, if the support part 10 collides with the obstacle 200, the support part 10 can move towards the ground 300. Therefore, it is necessary to ensure that the support part 10 is spaced from the obstacle 200 in the process of rotating the support part 10 along the fourth direction.

[0090] The driving device 20 drives the support part 10 to rotate along the third direction to make the support part 10 located at the first position, so as to realize the contact between the cleaning part 30 and the ground 300 when the support part 10 is located at the first position, and clean the ground 300. The driving device 20 drives the support part 10 to rotate along the fourth direction to make the support part 10 located at the second position, so as to realize the spacing between the support part 10 and the obstacle 200 when the support part 10 is located at the second position, and avoid the collision between the support part 10 and the obstacle 200. Meanwhile, the cleaning part 30 is disengaged from the ground 300 when the support part 10 is located at the second position, so as to avoid the liquid dirt such as sewage on the ground 300.

[0091] Please refer to Figure 7 and Figure 8 ​In some embodiments, the brush assembly 100 further comprises a lifting assembly 40, the support 10 is movably mounted on the lifting assembly 40, the lifting assembly 40 is configured to rotate together with the support 10 when the support 10 rotates in the third direction, and stop rotating when the support 10 rotates in the fourth direction, so that the support 10 moves away from the ground 300 relative to the lifting assembly 40 to space the cleaning member 30 from the ground 300.

[0092] In this way, the support 10 can move away from the ground 300 relative to the lifting assembly 40 when it rotates in the fourth direction by the action of the lifting assembly 40. The introduction of the lifting assembly 40 enables the support 10 to be quickly lifted when needed to pass over or avoid contact with the obstacle 200, and quickly lowered when needed to clean the ground 300, thereby improving the efficiency of cleaning and obstacle avoidance.

[0093] Specifically, the lifting assembly 40 can be a hydraulic drive assembly, a pneumatic drive assembly, or an electric push rod, etc. The driving device 20 drives the support 10 to move between the first position and the second position to achieve contact or disengagement of the cleaning member 30 with the ground 300. When the support 10 rotates in the third direction, the lifting assembly 40 can rotate together with the support 10, and the cleaning member 30 is in contact with the ground 300 to clean the ground 300. When the support 10 rotates in the fourth direction, the lifting assembly 40 stops rotating, and the support 10 moves away from the ground 300 relative to the lifting assembly 40, and the cleaning member 30 also moves away from the ground 300, thereby spacing the cleaning member 30 from the ground 300, which not only avoids collision between the support 10 and the obstacle 200 during rotation in the fourth direction, but also avoids spreading of the sewage when the cleaning member 30 sweeps over it.

[0094] Please refer to Figure 8 , Figure 9 and Figure 10 In some embodiments, the lifting assembly 40 comprises a fixed cover 41 and a floating cover 42, the support 10 is movably mounted between the fixed cover 41 and the floating cover 42, the fixed cover 41 is provided with a lifting portion 410, and the floating cover 42 is provided with a recessed portion 420, the lifting portion 410 and the recessed portion 420 define a track 43 for the movement of the support 10 when the floating cover 42 is mounted on the fixed cover 41, and the support 10 moves along the track 43 to space the cleaning member 30 from the ground 300 when it is driven by the driving device 20 to rotate in the fourth direction.

[0095] Therefore, the structural design of the fixed cover 41 and the floating cover 42 provides stable support, so that the support part 10 remains stable during rotation and movement, reduces deviation caused by vibration or accidental collision, and improves the overall stability of the edge brush assembly 100. When the support part 10 rotates in the fourth direction, it can move upward along the track 43, thereby achieving the spacing between the support part 10 and the obstacle 200 and the spacing between the cleaning element 30 and the ground 300.

[0096] Specifically, the fixed cover 41 is a stationary part of the lifting assembly 40, and the lifting part 410 is provided thereon and cooperates with the floating cover 42. The floating cover 42 is a movable part of the lifting assembly 40, which is installed on the fixed cover 41 and is provided with a recess 420 corresponding to the lifting part 410 of the fixed cover 41, forming a track 43 for the movement of the support part 10.

[0097] In the case where the driving device 20 drives the support part 10 to rotate in the fourth direction, the fixed cover 41 and the floating cover 42 are fixed and do not rotate, so that the support part 10 moves relative to the fixed cover 41 and the floating cover 42, and the support part 10 moves along the track 43 between the fixed cover 41 and the floating cover 42, so that the support part 10 moves in a direction away from the ground 300, thereby spacing the cleaning element 30 from the ground 300.

[0098] Please refer to Figure 8 In some embodiments, the lifting assembly 40 includes a transmission shaft 44 and a one-way bearing 45, one end of the transmission shaft 44 is fixedly connected with the fixed cover 41, the other end of the transmission shaft 44 is fixedly connected with the one-way bearing 45, and the one-way bearing 45 is configured to rotate in the third direction and not rotate in the fourth direction.

[0099] Therefore, the lifting assembly 40 can rotate in the third direction and not rotate in the fourth direction through the one-way bearing 45. The one-way bearing 45 has different resistance when rotating in the third direction and rotating in the fourth direction, which enables the cleaning element 30 to press down on the ground 300 to perform a cleaning action when the one-way bearing 45 rotates in the third direction, and enables the cleaning element 30 to lift up to move away from the ground 300 when the one-way bearing 45 rotates in the fourth direction. At the same time, the support part 10 can be spaced from the obstacle 200 when the one-way bearing 45 rotates in the fourth direction.

[0100] Specifically, the main function of the one-way bearing 45 is to rotate freely in one direction and be locked or have a large resistance in the other direction.

[0101] The driving device 20 is in transmission connection with the support part 10. The support part 10 is arranged between the fixed cover 41 and the floating cover 42, and the fixed cover 41 and the floating cover 42 are fixedly connected with the transmission shaft 44.

[0102] When the support part 10 moves along the third direction, the fixed cover 41 and the floating cover 42 move together with the support part 10, and when the support part 10 moves along the fourth direction, the fixed cover 41 and the floating cover 42 do not rotate due to the action of the one-way bearing 45, so that the support part 10 can rise along the track 43 between the fixed cover 41 and the floating cover 42, thereby moving away from the ground 300, so that the support part 10 is spaced from the obstacle 200. At this time, the cleaning part 30 can be away from the ground 300.

[0103] Please refer to Figure 8 In some embodiments, the lifting assembly 40 further comprises a circlip 46 clamped on the transmission shaft 44, which can limit the displacement of the transmission shaft 44 in the axial direction.

[0104] In some embodiments, the lifting assembly 40 can further comprise some specially designed gear structures, such as a ratchet mechanism, which comprises a fixed ratchet and a rotating part with a pawl, the pawl can push the ratchet to rotate in one direction, and be clamped by the ratchet in the other direction, so as to realize the effect of one-way transmission.

[0105] In some embodiments, the lifting assembly 40 can further comprise an electromagnetic clutch, the engagement and separation of which are controlled by electromagnetic force, so as to realize the effect of one-way transmission.

[0106] The cleaning robot 1000 in the utility model embodiment comprises the side brush assembly 100 in any one of the above embodiments.

[0107] Since the cleaning robot 1000 comprises the side brush assembly 100 described above, at least all the beneficial effects of the side brush assembly 100 described above are included, which will not be described here.

[0108] In the description of the present specification, the description of the terms "one embodiment", "certain embodiments", "illustrative embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0109] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A side brush assembly for a cleaning robot, characterized in that, The side brush assembly comprises a support part and a driving device, the driving device is connected with the support part, and the driving device is used for driving the support part to rotate; The support part comprises a base and a connecting part, the driving device is configured to drive the base to rotate, the connecting part is connected with the base, and the connecting part moves towards a direction away from the ground when colliding with the obstacle, the connecting part comprises a first side and a second side opposite to the first side, the first side is located on one side of the connecting part close to the obstacle, and the strength of the first side is greater than that of the second side.

2. The edge brush assembly of claim 1, wherein, The first side comprises a first contact surface, and the first contact surface is arranged on one side of the first side close to the ground in the vertical direction, and the first contact surface has a first included angle with the vertical direction.

3. The edge brush assembly of claim 2, wherein, The first included angle ranges from 6° to 10°.

4. The edge brush assembly of claim 2, wherein, The first side further comprises a second contact surface, the second contact surface is connected with the first contact surface, and the second contact surface is located above the first contact surface in the vertical direction, the second contact surface has a second included angle with the vertical direction, and the second included angle is greater than the first included angle.

5. The edge brush assembly of claim 1, wherein, In the vertical direction, the highest point of the first side is higher than that of the second side.

6. The edge brush assembly of claim 5, wherein, The connecting part further comprises a connecting surface connecting the first side and the second side, the connecting surface has a third included angle with the horizontal direction, and the third included angle ranges from 20° to 45°.

7. The edge brush assembly of claim 1, wherein, The connecting part comprises a first part and a second part connected with the first part, the first part is located between the second part and the base, the second part is used for contacting the obstacle, a first connecting area is formed between the first part and the base, a second connecting area is formed between the first part and the second part, the distance between the first connecting area and the second connecting area is B, the size of the first part in the first direction is C, and C / 6≤B≤C / 2; The size of the first part gradually decreases from the first connecting area to the second connecting area, the size of the first connecting area in the second direction is E, the size of the second connecting area in the second direction is D, 1.2D≤E≤2D, and the first direction intersects with the second direction.

8. The edge brush assembly of claim 1, wherein, The side brush assembly further comprises a cleaning piece, the cleaning piece is fixedly connected with the support part, the driving device is configured to drive the support part to move between a first position and a second position, in the case that the support part is located at the first position, the cleaning piece contacts the ground, in the case that the support part is located at the second position, the cleaning piece is separated from the ground, and in the case that the support part is located at the second position, the support part is spaced from the obstacle.

9. The edge brush assembly of claim 8, wherein, The driving device is configured to drive the support part to rotate in a third direction to make the support part located at the first position, and drive the support part to rotate in a fourth direction to make the support part located at the second position. In the process of rotating the support part along the third direction, the support part is configured to move towards the direction away from the ground under the impact of the obstacle, and in the process of rotating the support part along the fourth direction, the support part is spaced from the obstacle.

10. The edge brush assembly of claim 9, wherein, The side brush assembly further comprises a lifting assembly, the support part is movably mounted on the lifting assembly, and the lifting assembly is configured to rotate together with the support part when the support part rotates along the third direction, and stop rotating when the support part rotates along the fourth direction, so that the support part moves away from the ground relative to the lifting assembly to space the cleaning member from the ground.

11. The edge brush assembly of claim 10, wherein, The lifting assembly comprises a fixed cover and a floating cover, the support part is movably mounted between the fixed cover and the floating cover, the fixed cover is provided with a lifting portion, and the floating cover is provided with a recess portion, the lifting portion and the recess portion define a track for the movement of the support part when the floating cover is mounted on the fixed cover, and the support part moves along the track to space the cleaning member from the ground when the support part is driven to rotate along the fourth direction.

12. The edge brush assembly of claim 11, wherein, The lifting assembly comprises a transmission shaft and a one-way bearing, one end of the transmission shaft is fixedly connected with the fixed cover, the other end of the transmission shaft is fixedly connected with the one-way bearing, and the one-way bearing is configured to rotate along the third direction and not to rotate along the fourth direction.

13. A cleaning robot, characterized in that, The side brush assembly comprises any one of claims 1-12.

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