Side brush assembly and cleaning robot

Abstract

The utility model discloses a side brush assembly and a cleaning robot. The side brush assembly comprises a mounting frame, a side brush shell, a side brush and a first driving part. The side brush shell can rotate around the first axis of the first rotating shaft relative to the mounting frame, a limiting groove is formed in the peripheral side face of the side brush shell, and the limiting groove extends in the circumferential direction of the side brush shell; the side brush comprises a side brush body and a first bristle part, the side brush can rotate around the second axis of the second rotating shaft relative to the mounting frame, the first bristle part is connected with the side brush body, the first bristle part penetrates through the limiting groove, and the first bristle part can rotate between the two ends of the limiting groove relative to the side brush shell. The cleaning end of the first bristle part is lifted relative to the side brush shell; the first driving part is arranged on the mounting frame, is in transmission connection with the first rotating shaft or the second rotating shaft, and is used for driving the side brush shell or the side brush to rotate. The cleaning end of the side brush can be lifted away from the ground, so that the cleaning end can be prevented from being in contact with liquid and throwing the liquid to the periphery to cause large-area pollution.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning equipment, and in particular to a side brush assembly and a cleaning robot. Background Art

[0002] The cleaning function of the cleaning robot is generally achieved through a roller brush and a side brush, and the motor drives the side brush to rotate relative to the body to achieve the cleaning function.

[0003] However, in the related art, when the cleaning robot moves to an area with accumulated liquid, the bristles of the side brush will come into contact with the liquid, and as the side brush rotates, the side brush will throw the liquid around, causing large-scale pollution. Utility Model Content

[0004] The present application provides a side brush assembly and a cleaning robot, wherein the cleaning end of the side brush can be lifted off the ground, thereby preventing the cleaning end from coming into contact with liquid and splashing the liquid around to cause large-area contamination.

[0005] In the first aspect, the present application provides a side brush assembly, comprising: a mounting frame; a side brush shell, rotatably connected to the mounting frame via a first rotating shaft, the side brush shell being able to rotate relative to the mounting frame around a first axis of the first rotating shaft, a limiting groove being provided on the outer peripheral side surface of the side brush shell, the limiting groove extending along the circumference of the side brush shell; a side brush, comprising a side brush body and a first bristle portion, the side brush body being located in the side brush shell, the side brush body being rotatably connected to the mounting frame via a second rotating shaft, the side brush being able to rotate relative to the mounting frame around a second axis of the second rotating shaft The side brush housing is provided with a first drive member, the first drive member is connected to the first rotating shaft or the second rotating shaft in driving connection with the side brush housing, and the first drive member is used to drive the side brush housing or the side brush to rotate.

[0006] In a second aspect, the present application also provides a cleaning robot, comprising a body and a side brush assembly, wherein the side brush assembly is installed at the bottom of the body.

[0007] The beneficial effects of the present application are as follows: when the cleaning robot moves to an area with accumulated liquid, the first rotating shaft or the second rotating shaft can be driven to rotate by the first driving member, thereby driving the side brush shell or the side brush to rotate, so that the first bristle portion rotates relative to the side brush shell under the action of inertia, and at the same time, the cleaning end is lifted relative to the side brush shell, so that the cleaning end is lifted off the ground, which can prevent the cleaning end from contacting the liquid and throwing the liquid around to cause large-scale pollution; when the ground needs to be cleaned, the first rotating shaft or the second rotating shaft can be driven to rotate by the first driving member, thereby driving the side brush shell or The side brush rotates, causing the first brush portion and the side brush shell to rotate relative to each other, and at the same time, the cleaning end descends relative to the side brush shell, causing the cleaning end to contact the ground. Due to the limitation of the limiting groove, the side brush shell can rotate together with the first brush portion, thereby cleaning the ground through the cleaning end. The lifting and lowering of the first brush portion is simple and convenient, and there is no need to set up an additional driving mechanism for driving the first brush portion to lift and lower, which makes the structure of the side brush assembly simple and the cost low. At the same time, the volume of the side brush assembly can be reduced, making the installation of the side brush assembly on the cleaning robot more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0009] Figure 1 This is a structural schematic diagram of the side brush assembly when the cleaning end is in the working position in one embodiment of the present application;

[0010] Figure 2 It is a structural schematic diagram of the side brush assembly when the cleaning end is in the storage position in one embodiment of the present application;

[0011] Figure 3 This is a schematic diagram of the structure of the side brush assembly after the side brush is removed in one embodiment of the present application;

[0012] Figure 4 This is a partial structural schematic diagram of the side brush assembly in the first embodiment of the present application;

[0013] Figure 5 This is a partial structural schematic diagram of the side brush assembly in the first embodiment of the present application;

[0014] Figure 6 This is a partial structural diagram of a side brush assembly in the second embodiment of the present application;

[0015] Figure 7 This is a schematic diagram of the exploded components of the side brush assembly in the third embodiment of the present application;

[0016] Figure 8 This is a partial structural diagram of a side brush assembly in the third embodiment of the present application;

[0017] Fig. 9 This is a structural schematic diagram of a mounting frame and a transmission structure in one embodiment of the present application;

[0018] Fig.10 This is a structural schematic diagram of a side brush assembly in a fourth embodiment of the present application;

[0019] Fig.11 This is a partial structural diagram of a side brush assembly in the fourth embodiment of the present application;

[0020] Fig.12 This is a schematic diagram of the exploded components of the side brush assembly in the fourth embodiment of the present application;

[0021] Fig.13 It is a structural schematic diagram of the mounting frame, the side brush and the clutch structure when the side brush is in the retracted position in the present application;

[0022] Fig.14 This is a schematic diagram of the structure of the mounting frame, the side brush and the clutch structure when the side brush is in the extended position in the present application;

[0023] Fig.15 This is a structural schematic diagram of the sweeping robot when the side brush is in the retracted position in one embodiment of the present application;

[0024] Fig.16 This is a schematic diagram of the structure of the sweeping robot when the side brush is in the extended position in one embodiment of the present application.

[0025] Reference numerals:

[0026] 11. Mounting frame; 12. Support frame; 20. Side brush shell; 21. Limiting groove; 211. Bottom wall; 22. Upper shell; 23. Lower shell; 30. Side brush; 31. Side brush body; 32. First bristle part; 321. Cleaning end; 41. First rotating shaft; 42. Second rotating shaft; 43. Third rotating shaft; 44. Pin shaft; 51. First driving member; 52. Second driving member; 61. Inertia enhancing member; 62. Swinging member; 621. Connecting part; 622. Swinging part; 622a. Second end; 63. One-way limiting member; 64. Position detector; 71. First A gear; 72, a second gear; 73, a driving gear; 74, a linkage gear; 75, a transmission gear; 80, a clutch mechanism; 81, a first transmission member; 82, a second transmission member; 83, an elastic member; 90, a fuselage; S1, a first axis; S2, a second axis; S3, a third axis; S4, a fourth axis; S5, a fifth axis; K1, a first direction; K2, a second direction; K3, a third direction; K4, a fourth direction; R1, a first rotation direction; R2, a second rotation direction; R3, a third rotation direction; R4, a fourth rotation direction. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] The cleaning function of the cleaning robot is generally achieved through a roller brush and a side brush, and the motor drives the side brush to rotate relative to the body to achieve the cleaning function.

[0029] The present application provides a side brush assembly and a cleaning robot to solve the problem in the related art that when the cleaning robot moves to an area with accumulated liquid, the bristles of the side brush will come into contact with the liquid, and as the side brush rotates, the side brush will throw the liquid around, causing large-scale pollution.

[0030] In a first aspect, the present application provides a side brush assembly, such as Figures 1 to 5 As shown, the side brush assembly includes a mounting frame 11 , a side brush housing 20 and a side brush 30 .

[0031] Among them, the side brush shell 20 is rotatably connected to the mounting frame 11 through the first rotating shaft 41, and the side brush shell 20 can rotate relative to the mounting frame 11 around the first axis S1 of the first rotating shaft 41, and a limiting groove 21 is arranged on the outer peripheral side surface of the side brush shell 20, and the limiting groove 21 extends along the circumferential direction of the side brush shell 20; the side brush 30 includes a side brush body 31 and a first brush part 32, the side brush body 31 is located in the side brush shell 20, and the side brush body 31 is rotatably connected to the mounting frame 11 through the second rotating shaft 42, and the side brush 30 can rotate relative to the mounting frame 11 around the second axis S2 of the second rotating shaft 42, and the second axis S2 is parallel to the first axis S1, and the first brush part 32 is connected to the side brush body 31, and the first brush part 32 passes through the limiting groove 21, and one end of the first brush part 32 extending out of the side brush shell 20 is the cleaning end 321.

[0032] It can be understood that the first axis S1 is the axis of the first rotating shaft 41, the second axis S2 is the axis of the second rotating shaft 42, the first rotating shaft 41 can be located on the side of the second rotating shaft 42, in which case the first axis S1 and the second axis S2 do not coincide, the first rotating shaft 41 and the second rotating shaft 42 can also be arranged coaxially, in which case the first axis S1 and the second axis S2 coincide; the end of the first bristle portion 32 connected to the side brush body 31 is the connecting end, the end of the first bristle portion 32 located outside the side brush shell 20 is the cleaning end 321, when the first bristle portion 32 rotates, the cleaning end 321 is used to clean the floor. The side brush 30 can include one bristle or multiple bristles. When the side brush 30 includes multiple bristles, the multiple bristles can be arranged along the circumference of the side brush shell 20, the first bristle portion 32 can be any one of the multiple bristles, and the first bristle portion 32 can be provided with one or more bristles.

[0033] Specifically, the side brush assembly also includes a first driving member 51, which is arranged on the mounting frame 11. The first driving member 51 is transmission-connected to the first rotating shaft 41 or the second rotating shaft 42. The first driving member 51 is used to drive the side brush shell 20 or the side brush 30 to rotate. The first bristle portion 32 can rotate between the two ends of the limiting groove 21 relative to the side brush shell 20, so that one end of the first bristle portion 32 extending out of the side brush shell 20 is raised or lowered relative to the side brush shell 20. It can be understood that the first driving member 51 can be a driving member such as an electric motor. When the first driving member 51 is connected to the first rotating shaft 41 in a transmission manner, the first driving member 51 is used to drive the side brush housing 20 to rotate around the first axis S1 of the first rotating shaft 41. The output shaft of the first driving member 51 can be directly fixedly connected to the first rotating shaft 41. The output shaft of the first driving member 51 can also be connected to the first rotating shaft 41 through a transmission mechanism such as a gear transmission mechanism and a pulley transmission mechanism; when the first driving member 51 is connected to the second rotating shaft 42 in a transmission manner, the first driving member 51 is used to drive the side brush 30 to rotate around the second axis S2 of the second rotating shaft 42. The output shaft of the first driving member 51 can be directly fixedly connected to the second rotating shaft 42. The output shaft of the first driving member 51 can also be connected to the second rotating shaft 42 through a transmission mechanism such as a gear transmission mechanism and a pulley transmission mechanism; in the lifting trajectory of the first brush portion 32, the lowest position of the cleaning end 321 is the working position of the cleaning end 321 (such as Figure 1 ), the highest position of the cleaning end 321 is the storage position of the cleaning end 321 (such as Figure 2 ).

[0034] It should also be noted that if Figure 1 As shown, taking the transmission connection between the first driving member 51 and the first rotating shaft 41 as an example, when the cleaning robot moves to an area with accumulated liquid, the first rotating shaft 41 can be driven to rotate by the first driving member 51, thereby driving the side brush housing 20 to rotate along the first direction K1, so that the first brush portion 32 rotates relative to the side brush housing 20 under the action of inertia, and the first brush portion 32 rotates from the right end of the limiting groove 21 to the left end of the limiting groove 21, and at the same time, the cleaning end 321 is lifted relative to the side brush housing 20. When the first brush portion 32 is lifted to Figure 2 When the cleaning end 321 is in the position shown, the cleaning end 321 is lifted to the storage position, so that the cleaning end 321 is lifted off the ground, which can prevent the cleaning end 321 from contacting the liquid and throwing the liquid around to cause large-scale pollution; when the ground needs to be cleaned, Figure 2 As shown, the first rotating shaft 41 is driven to rotate by the first driving member 51, thereby driving the side brush housing 20 to rotate along the second direction K2, and the second direction K2 is opposite to the first direction K1, so that the first brush portion 32 rotates relative to the side brush housing 20 under the action of inertia, and the first brush portion 32 rotates from the left end of the limiting groove 21 to the right end of the limiting groove 21, and at the same time, the cleaning end 321 descends relative to the side brush housing 20. When the first brush portion 32 descends to Figure 1When in the position shown, the cleaning end 321 drops to the working position, so that the cleaning end 321 contacts the ground, and the side brush shell 20 continues to rotate along the second direction K2. Due to the limitation of the first brush part 32 by the limiting groove 21, the side brush shell 20 will drive the first brush part 32 to rotate along the second direction K2, thereby cleaning the ground through the cleaning end 321. The lifting and lowering of the first brush part 32 is simple and convenient, and there is no need to set an additional driving mechanism for driving the first brush part 32 to lift and lower, so that the structure of the side brush assembly is simple and the cost is low. At the same time, the volume of the side brush assembly can be reduced, thereby making the installation of the side brush assembly on the cleaning robot more convenient.

[0035] It should also be noted that when the first driving member 51 is in transmission connection with the second rotating shaft 42, when the cleaning robot moves to an area with accumulated liquid, such as Figure 1 As shown, the second rotating shaft 42 can be driven to rotate by the first driving member 51, thereby driving the side brush 30 to rotate along the second direction K2, so that the first bristle portion 32 rotates relative to the side brush housing 20 under the action of inertia, and the first bristle portion 32 rotates from the right end of the limiting groove 21 to the left end of the limiting groove 21, and the cleaning end 321 is lifted relative to the side brush housing 20; when it is necessary to clean the ground, as shown in FIG. Figure 2 As shown, the second rotating shaft 42 is driven to rotate by the first driving member 51, thereby driving the side brush 30 to rotate along the first direction K1, so that the first bristle portion 32 rotates relative to the side brush housing 20 under the action of inertia, and the first bristle portion 32 rotates from the left end of the limiting groove 21 to the right end of the limiting groove 21, and at the same time, the cleaning end 321 descends relative to the side brush housing 20. When the first bristle portion 32 descends to Figure 1 In the position shown, due to the limitation of the first bristle portion 32 by the limiting groove 21, the first bristle portion 32 will drive the side brush housing 20 to rotate along the first direction K1.

[0036] Continue to see Figures 1 to 3 As shown, in one embodiment, the first bristle portion 32 contacts the bottom wall surface 211 of the limiting groove 21, and the bottom wall surface 211 of the limiting groove 21 extends obliquely along the extension direction of the limiting groove 21, so that when the first bristle portion 32 rotates along the limiting groove 21 relative to the side brush housing 20, the cleaning end 321 rises and falls relative to the side brush housing 20. It can be understood that at least part of the bottom wall surface 211 of the limiting groove 21 is an inclined surface extending obliquely, the bottom wall surface 211 of the limiting groove 21 can be a continuously extending inclined surface, and the bottom wall surface 211 of the limiting groove 21 can also be formed by connecting an inclined surface and a plane. When the first bristle portion 32 rotates relative to the side brush housing 20, the first bristle portion 32 can drive the cleaning end 321 to rise and fall through the bottom wall surface 211 of the limiting groove 21 during the rotation of the first bristle portion 32 along the limiting groove 21, so that the lifting and lowering of the cleaning end 321 is more convenient, and the structure of the side brush assembly is simpler and the cost is lower.

[0037] like Figure 4and Figure 5 As shown, in one embodiment, one of the first rotating shaft 41 and the second rotating shaft 42 is arranged around the outer periphery of the other, and the first rotating shaft 41 and the second rotating shaft 42 are spaced apart, and the second axis S2 coincides with the first axis S1. It can be understood that the first rotating shaft 41 and the second rotating shaft 42 are arranged coaxially, and the first rotating shaft 41 can be arranged around the outer periphery of the second rotating shaft 42, or the second rotating shaft 42 can be arranged around the outer periphery of the first rotating shaft 41, which can make the arrangement of the first rotating shaft 41 and the second rotating shaft 42 more compact, thereby reducing the overall volume of the side brush assembly, thereby making the installation of the side brush assembly on the cleaning robot more convenient.

[0038] Continue to see Figure 4 and Figure 5 As shown, in some embodiments of the present application, the side brush assembly further includes an inertia reinforcement member 61 .

[0039] In one embodiment, the first driving member 51 can be connected to the first rotating shaft 41 in a transmission manner, and the first driving member 51 is used to drive the side brush housing 20 to rotate around the first axis S1. The inertia enhancing member 61 is connected to the side brush body 31 to enhance the rotational inertia of the side brush 30. It should be noted that the rotational inertia is a measure of the inertia of an object when it rotates around an axis. The larger the rotational inertia, the greater the rotational inertia. The inertia enhancing member 61 can enhance the inertia enhancing member 61 of the side brush 30. Figure 1 When the cleaning end 321 needs to be lifted, the first driving member 51 drives the side brush housing 20 to rotate from stationary to the first direction K1, or the first driving member 51 drives the side brush housing 20 to change direction from rotating along the second direction K2 to rotating along the first direction K1. Since the side brush 30 has a large moment of inertia, the side brush 30 can overcome the friction between the side brush housing 20 and rotate relative to the side brush housing 20, so that the first bristle portion 32 rotates from the right end of the limiting groove 21 to the left end of the limiting groove 21, and the cleaning end 321 is lifted to the storage position (such as Figure 2 ); see Figure 2 When the cleaning end 321 needs to be lowered, the first driving member 51 drives the side brush housing 20 to rotate from stationary to the second direction K2, or the first driving member 51 drives the side brush housing 20 to change direction from rotating along the first direction K1 to rotating along the second direction K2. Since the side brush 30 has a large moment of inertia, the side brush 30 can overcome the friction between the side brush housing 20 and rotate relative to the side brush housing 20, so that the first bristle portion 32 rotates from the left end of the limiting groove 21 to the right end of the limiting groove 21, and the cleaning end 321 descends to the working position (such as Figure 2), through the connection between the inertia reinforcement part 61 and the side brush 30, on the basis of ensuring that the bottom wall surface 211 of the side brush shell 20 can provide a sufficiently large lifting force for the first bristle part 32, the inertia of the inertia reinforcement part 61 can be used to overcome the friction between the first bristle part 32 and the side brush shell 20, thereby ensuring that the first bristle part 32 and the side brush shell 20 can rotate relative to each other.

[0040] In another embodiment, the first driving member 51 may be in transmission connection with the second rotating shaft 42, and the first driving member 51 is used to drive the side brush 30 to rotate around the second axis S2, and the inertia enhancing member 61 is connected to the side brush housing 20 to enhance the rotational inertia of the side brush housing 20. Figure 1 When the cleaning end 321 needs to be lifted, the first driving member 51 drives the side brush 30 to rotate from stationary to the second direction K2, or the first driving member 51 drives the side brush 30 to change direction from rotating along the first direction K1 to rotating along the second direction K2. Since the side brush housing 20 has a large moment of inertia, the side brush housing 20 can overcome the friction between the side brush 30 and rotate relative to the side brush 30, so that the first bristle portion 32 rotates from the right end of the limiting groove 21 to the left end of the limiting groove 21, and the cleaning end 321 is lifted to the storage position (such as Figure 2 ); see Figure 2 When the cleaning end 321 needs to be lowered, the first driving member 51 drives the side brush housing 20 to rotate from stationary to the first direction K1, or the first driving member 51 drives the side brush housing 20 to change direction from rotating along the second direction K2 to rotating along the first direction K1. Since the side brush housing 20 has a large moment of inertia, the side brush housing 20 can overcome the friction between the side brush 30 and rotate relative to the side brush 30, so that the first bristle portion 32 rotates from the left end of the limiting groove 21 to the right end of the limiting groove 21, and the cleaning end 321 descends to the working position (such as Figure 2 ).

[0041] Among them, the inertia reinforcement 61 is rotatably connected to the mounting frame 11 through the third rotating shaft 43, and the inertia reinforcement 61 can rotate around the third axis S3 of the third rotating shaft 43 relative to the mounting frame 11. The side brush shell 20 is transmission-connected to the inertia reinforcement 61 so that the inertia reinforcement 61 and the side brush shell 20 rotate synchronously, thereby enhancing the rotational inertia of the side brush shell 20 through the inertia reinforcement 61. It should be noted that the inertia reinforcement member 61 can be a device such as a turntable or a flywheel, and the third axis S3 is the axis of the third rotating shaft 43. The third axis S3 can be parallel to or intersect with the first axis S1. The side brush shell 20 and the inertia reinforcement member 61 can be connected by gear transmission, friction transmission, belt transmission, etc. For example, a first gear 71 is fixed on the first rotating shaft 41, and a second gear 72 is fixed on the third rotating shaft 43. The transmission connection between the side brush shell 20 and the inertia reinforcement member 61 is realized by the meshing transmission of the first gear 71 and the second gear 72. The first gear 71 and the second gear 72 can be directly meshed, or a single-pole or multi-stage reduction transmission structure can be set between the first gear 71 and the second gear 72, so that when the side brush shell 20 rotates, the inertia reinforcement member 61 is driven to accelerate the rotation, thereby enhancing the rotational inertia of the inertia reinforcement member 61.

[0042] In one embodiment, the mass of the inertia reinforcement 61 may be greater than the mass of the side brush housing 20. In another embodiment, when the inertia reinforcement 61 rotates synchronously with the side brush housing 20, the rotation speed of the inertia reinforcement 61 is greater than the rotation speed of the side brush housing 20. In another embodiment, the mass of the inertia reinforcement 61 may be greater than the mass of the side brush housing 20, and the rotation speed of the inertia reinforcement 61 is greater than the rotation speed of the side brush housing 20. It can be understood that the magnitude of the moment of inertia of an object is related to the mass and rotation speed of the object. Generally speaking, the greater the mass of an object, the greater the moment of inertia of the object, the faster the rotation speed of the object, and the greater the moment of inertia of the object. In the related art, the mass of the side brush housing 20 is usually small, resulting in a small moment of inertia of the side brush housing 20 itself. The moment of inertia of the side brush housing 20 itself may not overcome the friction between the first bristle portion 32, while in this embodiment, the inertia reinforcement 61 has a larger mass and / or a larger rotation speed, so that the moment of inertia of the side brush housing 20 during rotation can overcome the friction between the first bristle portion 32.

[0043] like Figure 6As shown, in some other embodiments of the present application, the first driving member 51 is transmission-connected to the first rotating shaft 41, and the first driving member 51 is used to drive the side brush shell 20 to rotate around the first axis S1 of the first rotating shaft 41. The side brush assembly also includes a swinging member 62, which is rotationally connected to the second rotating shaft 42. The swinging member 62 can rotate around a fourth axis S4 relative to the second rotating shaft 42, and the fourth axis S4 is perpendicular to the first axis S1; the swinging member 62 rotates synchronously with the second rotating shaft 42 around the second axis S2, and when the rotation speed of the second rotating shaft 42 is less than the first preset rotation speed, the edge of the swinging member 62 contacts the mounting bracket 11, and when the rotation speed of the second rotating shaft 42 is greater than the second preset rotation speed, the swinging member 62 swings upward around the fourth axis S4 under the action of centrifugal force and separates from the mounting bracket 11, and the second preset rotation speed is greater than the first preset rotation speed.

[0044] It is understandable that the swing member 62 may be a pendulum or other device. Figure 1 As shown in the figure, when the cleaning end 321 needs to be lifted, the first driving member 51 starts to work from being stationary to drive the side brush housing 20 to rotate along the first direction K1. At this time, the second rotating shaft 42 and the side brush 30 are both in a stationary state, and the rotation speed of the second rotating shaft 42 is less than the first preset rotation speed. The swing member 62 is in a falling position under the action of gravity and contacts the mounting frame 11. There is a large friction force between the swing member 62 and the mounting frame 11. When the side brush 30 rotates, it is necessary to overcome the friction between the swing member 62 and the mounting frame 11. Friction makes the side brush shell 20 rotate rapidly along the first direction K1 relative to the mounting frame 11 while the side brush 30 and the mounting frame 11 remain relatively still, or the side brush 30 rotates slowly along the first direction K1 relative to the first mounting frame 11 driven by the friction between the side brush shell 20 and the first brush bristle portion 32, so that the side brush shell 20 and the side brush 30 can move relative to each other, so that the first brush bristle portion 32 rotates from the right end of the limiting groove 21 to the left end of the limiting groove 21, and the cleaning end 321 is lifted to the storage position.

[0045] like Figure 2As shown, when the cleaning end 321 needs to be lowered, the first driving member 51 starts to work from a standstill to drive the side brush housing 20 to rotate along the second direction K2. At this time, the second rotating shaft 42 and the side brush 30 are both in a stationary state, and the swing member 62 is in a falling position under the action of gravity and contacts the mounting frame 11. There is a large friction force between the swing member 62 and the mounting frame 11, so that when the side brush housing 20 rotates rapidly along the second direction K2 relative to the mounting frame 11, the side brush 30 and the mounting frame 11 are relatively stationary, or the side brush 30 is driven by the friction between the side brush housing 20 and the first bristle portion 32 to slowly rotate along the second direction K2 relative to the first mounting frame 11. The side brush housing 20 and the side brush 30 rotate relative to each other, so that the first bristle portion 32 rotates from the left end of the limiting groove 21 to the right end of the limiting groove 21, and the cleaning end 321 drops to the working position. After the first bristle portion 32 abuts against the right end of the limiting groove 21, the side brush housing 20 drives the first bristle portion 32 to rotate synchronously along the second direction K2 relative to the mounting frame 11, thereby driving the second rotating shaft 42 and the swing hammer to rotate rapidly. At this time, the speed of the second rotating shaft 42 is greater than the second preset speed. The swing member 62 swings upward around the fourth axis S4 under the action of centrifugal force and separates from the mounting frame 11, so that the side brush 30 can work normally. The specific values ​​of the first preset speed and the second preset speed can be selected according to actual needs. When the first driving member 51 drives the side brush housing 20 to rotate, the speed of the side brush housing 20 is greater than the second preset speed.

[0046] Continue to see Figure 6 As shown, in one embodiment, the swing member 62 is located in the mounting frame 11. When the rotation speed of the second rotating shaft 42 is less than the first preset rotation speed, the edge of the swing member 62 contacts the inner wall surface of the mounting frame 11. When the rotation speed of the second rotating shaft 42 is greater than the second preset rotation speed, the swing member 62 swings upward around the fourth axis S4 under the action of centrifugal force and separates from the inner wall surface of the mounting frame 11. It can be understood that accommodating the swing member 62 in the mounting frame 11 can further reduce the overall volume of the side brush assembly, thereby making the installation of the side brush assembly on the cleaning robot more convenient. At the same time, the inner wall surface of the mounting frame 11 is used to provide friction resistance for the swing member 62, and there is no need to set additional components on the mounting frame 11 to provide friction resistance for the swing member 62.

[0047] Specifically, the swinging member 62 includes a connecting portion 621 and a swinging portion 622; the connecting portion 621 is rotatably connected to the second rotating shaft 42; the first end of the swinging portion 622 is connected to an end of the connecting portion 621 away from the second rotating shaft 42, the swinging portion 622 is arranged at an angle to the connecting portion 621, and the second end 622a of the swinging portion 622 is arranged upward, and the angle formed by the swinging portion 622 and the connecting portion 621 can be 45 degrees, 60 degrees, 75 degrees, 90 degrees, 110 degrees or other degrees.

[0048] When the rotation speed of the second rotating shaft 42 is less than the first preset rotation speed, the outer edge of the second end 622a of the swinging part 622 contacts the mounting frame 11, and when the rotation speed of the second rotating shaft 42 is greater than the second preset rotation speed, the swinging part 622 swings upward around the fourth axis S4 under the action of centrifugal force, so that the outer edge of the second end 622a of the swinging part 622 is separated from the mounting frame 11. It can be understood that the entire swinging member 62 can be roughly "L"-shaped, so that the swinging member 62 swings more smoothly, and when the swinging member 62 contacts the mounting frame 11, only a part of the second end 622a of the swinging part 622 contacts the mounting frame 11, so that the swinging member 62 is easier to separate from the mounting frame 11 when swinging upward.

[0049] Furthermore, the outer edge of the second end 622a of the swing member 62 is configured as an arc surface, so that the swing member 62 can be more easily separated from the mounting bracket 11 when swinging upward.

[0050] In one embodiment, two swing members 62 can be provided, and the two swing members 62 are respectively arranged on two opposite sides of the second rotating shaft 42, so that when the rotation speed of the second rotating shaft 42 is less than the first preset rotation speed, the two swing members 62 can provide friction resistance for the second rotating shaft 42 on both sides of the second rotating shaft 42, thereby increasing the friction resistance of the second rotating shaft 42, and further ensuring that the side brush shell 20 and the side brush 30 can move relative to each other.

[0051] like Figure 7 and Figure 8 As shown, in some other embodiments of the present application, the side brush assembly also includes a one-way limit member 63. As the name implies, the one-way limit member 63 is a device that can rotate freely in one direction (such as the first rotation direction R1) and is locked in the other opposite direction (such as the second rotation direction R2). The one-way limit member 63 can be a one-way bearing or a ratchet pawl assembly or other devices.

[0052] In one embodiment, the first driving member 51 is in driving connection with the first rotating shaft 41, and the one-way stopper 63 is connected with the second rotating shaft 42 and the mounting bracket 11, so that the side brush 30 can rotate along the first rotating direction R1 and prevents the side brush 30 from rotating along the second rotating direction R2, and the second rotating direction R2 is opposite to the first rotating direction R1. The first driving member 51 drives the side brush housing 20 to rotate along the first rotating direction R1, so that when the side brush 30 rotates relative to the side brush housing 20 along the second rotating direction R2, the cleaning end 321 descends relative to the side brush housing 20. It should be noted that Figure 1 and Figure 2 Taking the viewing angle shown as an example, the first rotation direction R1 is Figure 1 and Figure 2 The second direction K2 in the second rotation direction R2 is Figure 1 and Figure 2In the first direction K1, when the cleaning end 321 needs to be lowered, Figure 2 Taking the position of the cleaning end 321 as the starting point of the movement, at this time, the cleaning end 321 is located in the storage position, and when the first driving member 51 drives the side brush housing 20 to rotate along the first rotation direction R1, the side brush 30 is in a stationary state, so that the side brush 30 rotates relative to the side brush housing 20 along the second rotation direction R2, and the gravity of the first bristle portion 32 can overcome the friction between the first bristle portion 32 and the bottom wall surface 211 of the limiting groove 21, so that the cleaning end 321 rotates from the left end of the limiting groove 21 to the right end of the limiting groove 21, and the cleaning end 321 drops to the working position (such as Figure 1 ), and then the cleaning end 321 rotates synchronously with the side brush housing 20 along the first rotation direction R1 to perform cleaning work; when the cleaning end 321 needs to be lifted, Figure 1 Taking the position of the cleaning end 321 as the starting point of the movement, at this time, the cleaning end 321 is in the working position, and when the first driving member 51 drives the side brush housing 20 to rotate along the second rotation direction R2, the side brush 30 remains stationary due to the obstruction of the one-way limiting member 63, so that the side brush 30 rotates relative to the side brush housing 20 along the first rotation direction R1, and the cleaning end 321 rotates from the right end of the limiting groove 21 to the left end of the limiting groove 21, and the cleaning end 321 is lifted to the storage position (such as Figure 2 ).

[0053] In another embodiment, the first driving member 51 is in driving connection with the second rotating shaft 42, and the one-way stopper 63 is connected with the first rotating shaft 41 and the mounting bracket 11, so that the side brush housing 20 can rotate along the third rotation direction R3 and prevent the side brush housing 20 from rotating along the fourth rotation direction R4, and the fourth rotation direction R4 is opposite to the third rotation direction R3, and the first driving member 51 drives the side brush 30 to rotate along the third rotation direction R3, so that when the side brush 30 rotates relative to the side brush housing 20 along the third rotation direction R3, the cleaning end 321 descends relative to the side brush housing 20. It should be noted that Figure 1 and Figure 2 Taking the perspective shown in the figure as an example, the third rotation direction R3 is Figure 1 and Figure 2 The first direction K1, the fourth rotation direction R4 is Figure 1 and Figure 2 In the second direction K2, when the cleaning end 321 needs to be lowered, Figure 2Taking the position of the cleaning end 321 as the starting point of the movement, at this time, the cleaning end 321 is located in the storage position, and when the first driving member 51 drives the side brush 30 to rotate along the third rotation direction R3, the side brush housing 20 is in a stationary state, so that the side brush 30 rotates relative to the side brush housing 20 along the third rotation direction R3, and the gravity of the first bristle portion 32 can overcome the friction between the first bristle portion 32 and the bottom wall surface 211 of the limiting groove 21, so that the cleaning end 321 rotates from the left end of the limiting groove 21 to the right end of the limiting groove 21, and the cleaning end 321 drops to the working position (such as Figure 1 ), and then the side brush housing 20 rotates synchronously with the first bristle portion 32 along the third rotation direction R3 to perform cleaning work; when the cleaning end 321 needs to be lifted, Figure 1 Taking the position of the cleaning end 321 as the starting point of the movement, at this time, the cleaning end 321 is in the working position, and when the first driving member 51 drives the side brush 30 to rotate along the fourth rotation direction R4, due to the obstruction of the one-way limiting member 63, the side brush housing 20 remains stationary, and the side brush 30 rotates relative to the side brush housing 20 along the fourth rotation direction R4, and the cleaning end 321 rotates from the right end of the limiting groove 21 to the left end of the limiting groove 21, and the cleaning end 321 is lifted to the storage position (such as Figure 2 ).

[0054] In one embodiment, the one-way stopper 63 includes a one-way bearing. The first driving member 51 is in driving connection with the first rotating shaft 41, the one-way bearing is sleeved on the second rotating shaft 42, the inner ring of the one-way bearing is connected to the second rotating shaft 42, and the outer ring of the one-way bearing is connected to the mounting frame 11, so that the side brush 30 can rotate along the first rotation direction R1 and prevent the side brush 30 from rotating along the second rotation direction R2; or the first driving member 51 is in driving connection with the second rotating shaft 42, the one-way bearing is sleeved on the first rotating shaft 41, the inner ring of the one-way bearing is connected to the first rotating shaft 41, and the outer ring of the one-way bearing is connected to the mounting frame 11, so that the side brush housing 20 can rotate along the first rotation direction R1 and prevent the side brush housing 20 from rotating along the second rotation direction R2. It should be noted that the one-way bearing is also called an overrunning clutch. The one-way bearing usually contains many rollers, needle rollers or ball rollers, and the shape of the one-way bearing rolling seat makes the one-way bearing only roll in one direction, while it will generate great resistance in the other direction. The one-way bearing can be used as an ordinary bearing to realize the rotational connection between the first rotating shaft 41 and the mounting frame 11 or the second rotating shaft 42 and the mounting frame 11, and can also realize the one-way rotation of the first rotating shaft 41 or the second rotating shaft 42, which can reduce the number of parts required for the side brush assembly and further reduce the volume and cost of the side brush assembly.

[0055] In one embodiment, the first bristle portion 32 is made of an elastic material, and the first bristle portion 32 itself is elastic and can swing up and down relative to the side brush housing 20, so that the first bristle portion 32 can be raised and lowered relative to the side brush housing 20 without being connected to the side brush body 31 by a hinge or other means. The first bristle portion 32 can be made of rubber, elastic metal or other materials.

[0056] like Fig. 9 As shown, in some embodiments of the present application, the side brush assembly also includes a transmission structure, the transmission structure includes a driving gear 73 and a linkage gear 74, the driving gear 73 is transmission-connected with the linkage gear 74, and the driving gear 73 can be installed and fixed on the output shaft of the first driving member 51 by interference fit or key connection.

[0057] When the first driving member 51 is in transmission connection with the first rotating shaft 41, the linkage gear 74 can be installed on the first rotating shaft 41 by means of interference fit or key connection, and when the first driving member 51 drives the driving gear 73 to rotate, the driving gear 73 drives the linkage gear 74 to rotate, so as to drive the first rotating shaft 41 and the side brush housing 20 to rotate around the first axis S1. When the first driving member 51 is in transmission connection with the second rotating shaft 42, the linkage gear 74 can be installed on the second rotating shaft 42 by means of interference fit or key connection, and when the first driving member 51 drives the driving gear 73 to rotate, the driving gear 73 drives the linkage gear 74 to rotate, so as to drive the second rotating shaft 42 and the side brush 30 to rotate around the second axis S2. It can be understood that the driving gear 73 and the interlocking gear 74 are transmission components between the output shaft of the first driving member 51 and the first rotating shaft 41 or the second rotating shaft 42. The driving gear 73 can directly mesh with the interlocking gear 74 to achieve a transmission connection. Other transmission gears 75 for transmission can also be provided between the driving gear 73 and the interlocking gear 74. The transmission connection is achieved by meshing the transmission gear 75 with the driving gear 73 and the interlocking gear 74. The number of transmission gears 75 can be 1, 2 or more, and the number of transmission gears 75 can be determined according to the required transmission ratio between the first driving member 51 and the first rotating shaft 41 or the second rotating shaft 42.

[0058] like Fig.10 and Fig.11 As shown, in some embodiments of the present application, the side brush assembly further includes a support frame 12 and a second driving member 52. The second driving member 52 can be a driving member such as an electric motor.

[0059] The mounting frame 11 is rotatably connected to the support frame 12, and the mounting frame 11 can swing around the fifth axis S5 relative to the support frame 12, and the fifth axis S5 is parallel to the first axis S1. The support frame 12 is the frame structure of the side brush assembly, and the support frame 12 can be connected to the body 90 (such as Fig.15 ) to mount the side brush assembly on the body 90; the second driving member 52 is disposed on the support frame 12, and the second driving member 52 is used to drive the mounting frame 11 to swing relative to the support frame 12 around the fifth axis S5, so that the side brush 30 is in the extended position (such as Fig.10 , Fig.14 and Fig.16 ) and the retracted position (such as Fig.13 and Fig.15 )

[0060] It should be noted that the cleaning function of the cleaning robot is generally achieved through a roller brush and a side brush 30. Since the roller brush cannot be the same width as the body 90 of the cleaning robot, the roller brush cannot clean close to the edge of the wall. Therefore, it is usually necessary to cooperate with a single-sided side brush 30 or a double-sided side brush 30 to clean close to the edge of the wall. A side brush 30 is generally arranged on the right front of the cleaning robot, and the side brush 30 can rotate relative to the body 90 to achieve the cleaning function. However, in the related art, the outer edge shape of the cleaning robot is mostly arc-shaped. When moving to corner areas such as wall corners, due to the limited length of the side brush 30 extending from the edge of the cleaning robot, the side brush 30 usually cannot completely cover the corner area, resulting in the corner area cannot be effectively cleaned.

[0061] In the embodiment of the present application, the second driving member 52 can drive the mounting frame 11 to swing relative to the supporting frame 12 around the fifth axis S5, thereby driving the side brush 30, the side brush shell 20 and the first driving member 51 installed on the mounting frame 11 to swing relative to the supporting frame 12, so that when the side brush assembly is applied to the cleaning robot, the side brush 30 can swing relative to the body 90. When it is necessary to clean the corner area, the side brush 30 can be swung to the extended position. At this time, the first bristle portion 32 of the side brush 30 will be exposed from the outer edge of the body 90 (such as Fig.16 ), so that when the cleaning robot reaches the corner area such as the wall corner, the first bristle portion 32 can touch the corner area, and the first driving member 51 can drive the side brush 30 to rotate around the second axis S2 to clean the floor, so that the corner area can be effectively cleaned; when the cleaning is completed, the side brush 30 can be rotated to the retracted position (such as Fig.15 ), at this time, the side brush 30 is retracted at the bottom of the body 90, and the side brush shell 20 and the side brush body 31 of the side brush 30 will not be exposed from the outer edge of the body 90, which can reduce the rotation radius of the head of the cleaning robot, improve the ability of the cleaning robot to pass through a narrow space and turn around on the spot to escape, and also prevent the side brush shell 20 and the side brush 30 from causing bumps and damages to the walls and furniture of the user's home during the movement of the cleaning robot.

[0062] like Figure 12 to Figure 14As shown, in some embodiments of the present application, the side brush assembly further includes a clutch mechanism 80, the clutch mechanism 80 includes a first transmission member 81 and a second transmission member 82, the first transmission member 81 is transmission-connected to the second drive member 52, the second transmission member 82 is connected to the mounting bracket 11, and the second drive member 52 can drive the first transmission member 81 to move so that the first transmission member 81 contacts the second transmission member 82 (such as Fig.13 ) and separation (such as Fig.14 ).

[0063] When the first transmission member 81 contacts the second transmission member 82 , the second driving member 52 can drive the mounting frame 11 to swing around the fifth axis S5 through the transmission of the first transmission member 81 and the second transmission member 82 . It can be understood that the first transmission member 81 and the second transmission member 82 are two transmission components used for two transmissions between the second driving member 52 and the mounting frame 11. In the process of the second driving member 52 driving the first transmission member 81 to move, the first transmission member 81 and the second transmission member 82 have two states: a contact state and a separation state. When the first transmission member 81 is in contact with the second transmission member 82, the first transmission member 81 drives the second transmission member 82 and the mounting frame 11 to move when it moves, so that the second driving member 52 can drive the mounting frame 11 to swing around the fifth axis S5, thereby switching the side brush 30 between the extended position and the retracted position; when the first transmission member 81 is separated from the second transmission member 82, the first transmission member 81 has no constraint on the second transmission member 82, and the mounting frame 11 can remain stationary at a required position (such as an extended position) under the action of external force, and the mounting frame 11 can also swing freely under the action of external force.

[0064] Furthermore, when the side brush 30 is in the extended position, the first transmission member 81 is separated from the second transmission member 82, and the side brush 30 can swing toward the retracted position under the action of an external force, so that the side brush 30 is in the extended position, and when the side brush 30 encounters an obstacle during the movement of the cleaning robot, the side brush 30 can swing back under the reaction force of the obstacle, thereby preventing the side brush 30 from having hard contact and hard friction with the obstacle, and further preventing the side brush 30 from causing bumps and damage to the walls and furniture of the user's home during the movement of the cleaning robot; when the side brush 30 is in the retracted position, the first transmission member 81 contacts the second transmission member 82, so as to limit and lock the side brush 30 in the retracted position through the constraint of the first transmission member 81 on the second transmission member 82, thereby preventing the mounting frame 11 and the side brush 30 from rotating due to factors such as shaking.

[0065] Furthermore, if Fig.14 As shown, when the side brush 30 moves from the extended position to the retracted position, the second driving member 52 is used to drive the first transmission member 81 to move along the third direction K3, so that the first transmission member 81 moves from a state separated from the second transmission member 82 to a state in contact with the second transmission member 82; Fig.13As shown, when the side brush 30 moves from the retracted position to the extended position, the second driving member 52 is used to drive the first transmission member 81 to move along the fourth direction K4, so that the first transmission member 81 moves from a state of contact with the second transmission member 82 to a state of separation from the second transmission member 82, and the third direction K3 is opposite to the fourth direction K4. It should be noted that when the first transmission member 81 moves along the third direction K3 and when the first transmission member 81 moves along the fourth direction K4, the first transmission member 81 and the second transmission member 82 both have two states: a contact state and a separation state. When the side brush 30 moves to the retracted position, the first transmission member 81 can move along the third direction K3 until it contacts the second transmission member 82 to limit and lock the side brush 30 in the retracted position; when the side brush 30 moves to the extended position, the first transmission member 81 can move along the fourth direction K4 until it separates from the second transmission member 82. At this time, the restriction of the mounting frame 11 by the first transmission member 81 is released, and the mounting frame 11 and the side brush 30 can rotate freely, so that the side brush 30 can swing back under the reaction force of the obstacle when in the extended position. In this embodiment, the third direction K3 and the fourth direction K4 are both rotation directions. The third direction K3 can be the same as the first direction K1 or the second direction K2. When the third direction K3 is a clockwise rotation direction, the fourth direction K4 is a counterclockwise rotation direction; when the third direction K3 is a counterclockwise rotation direction, the fourth direction K4 is a clockwise rotation direction.

[0066] In an optional embodiment, the first transmission member 81 includes a driving gear that is transmission-connected to the second driving member 52, and the second transmission member 82 includes a driven gear disposed on the mounting frame 11. When the driving gear is meshed with the driven gear, the first transmission member 81 contacts the second transmission member 82, and when the driving gear is separated from the driven gear, the first transmission member 81 is separated from the second transmission member 82. It can be understood that the second driving member 52 can drive the driving gear to rotate, and the driving gear can be meshed and separated with the driven gear during the rotation of the driving gear. When the teeth on the driven gear are meshed with the teeth of the driving gear, and the second driving member 52 is started to drive the driving gear to rotate, the driving gear will drive the driven gear to rotate, thereby driving the mounting frame 11 to swing around the fifth axis S5.

[0067] It should also be noted that, in this embodiment, when the side brush 30 is in the extended position, the driving gear can be rotated to be in a meshing state with the driven gear, so that the teeth of the driving gear are meshed with the driven gear, so that the second drive member 52 can drive the side brush 30 to swing from the extended position to the retracted position; when the side brush 30 is in the retracted position, the driving gear can be rotated to be in a separated state with the driven gear, so that the teeth of the driving gear are separated from the driven gear, so as to release the constraint of the driving gear on the driven gear.

[0068] It can be understood that, in the process of the second driving member 52 driving the second output shaft and the driving gear to rotate, the driving gear and the driven gear can switch between the meshing state and the disengagement state. When the driving gear and the driven gear are in the meshing state, the teeth of the driving gear are meshed with the driven gear. At this time, the rotation of the driving gear will drive the driven gear and the mounting frame 11 to rotate synchronously, thereby driving the side brush 30 to swing from the extended position to the retracted position; when the driving gear and the driven gear are in the disengagement state, the teeth of the driving gear are separated from the driven gear. At this time, the rotation of the driving gear will not drive the driven gear and the mounting frame 11 to rotate.

[0069] Specifically, the driving gear may be an incomplete gear, and / or the driven gear may be an incomplete driven gear. It is understood that an incomplete gear refers to a gear having teeth only at a portion of its circumference, and an incomplete driven gear refers to a driven gear having teeth only at a portion of its circumference. Taking the driven gear as an incomplete gear as an example, when the side brush 30 needs to swing to the retracted position, the driving gear rotates to be in meshing state with the driven gear, the teeth on the driving gear are opposite to the driven gear, and the teeth on the driven gear will mesh with the teeth of the driving gear. At this time, the driving gear can drive the driven gear to rotate, so that the side brush 30 can swing from the extended position to the retracted position, and when the side brush 30 is in the retracted position, the position of the mounting frame 11 and the side brush 30 can be locked through the meshing of the driving gear and the driven gear to prevent the mounting frame 11 from rotating due to factors such as shaking; when the side brush 30 needs to swing to the extended position, the driving gear can be rotated so that the driving gear rotates to be in a separated state with the driven gear. At this time, the teeth on the driving gear are separated from the driven gear, and the restriction of the driving gear on the mounting frame 11 is released, and the mounting frame 11 can rotate freely.

[0070] It should also be noted that, in other embodiments, the first transmission member 81 and the second transmission member 82 may also be other transmission structures that cooperate with each other; for example, in one embodiment, the first transmission member 81 may include a rack that is transmission-connected to the second drive member 52, and the second transmission member 82 includes a driven gear disposed on the mounting frame 11. When the rack is meshed with the driven gear, the first transmission member 81 contacts the second transmission member 82, and when the rack is separated from the driven gear, the first transmission member 81 is separated from the second transmission member 82. In this embodiment, the third direction K3 and the fourth direction K4 are sliding directions, and the third direction K3 and the fourth direction K4 are parallel to the length extension direction of the rack; in another embodiment, the first transmission member 81 may include a rack that is transmission-connected to the second drive member 52. The connected cam, the second transmission member 82 includes an arc-shaped convex portion arranged on the mounting frame 11. During the rotation of the cam, the protruding portion of the cam can contact the arc-shaped convex portion, while the base circle portion of the cam will not contact and squeeze the arc-shaped convex portion. When the protruding portion of the cam contacts the arc-shaped convex portion, the first transmission member 81 contacts the second transmission member 82. When the protruding portion of the cam separates from the arc-shaped convex portion, the first transmission member 81 separates from the second transmission member 82. In this embodiment, the third direction K3 and the fourth direction K4 are the rotation directions, and the third direction K3 and the fourth direction K4 are parallel to the swing direction of the mounting frame 11; of course, in other embodiments, the first transmission member 81 and the second transmission member 82 can also be other mutually coordinated transmission structures, and this application does not give examples one by one. In other embodiments, the clutch mechanism 80 can also be a clutch, the first transmission member 81 is a pressure plate, and the second transmission member 82 is a driven plate. The specific working principle of the clutch has been disclosed in the relevant technology, and this application does not repeat it.

[0071] In some embodiments, the clutch mechanism 80 also includes an elastic member 83, which abuts against the support frame 12 and the mounting frame 11; when the first transmission member 81 moves to separate from the second transmission member 82, the elastic member 83 drives the mounting frame 11 to swing around the fifth axis S5, so that the side brush 30 swings to the extended position; when the second driving member 52 drives the side brush 30 to swing from the extended position to the retracted position, the elastic member 83 is compressed.

[0072] It can be understood that the elastic member 83 is used to drive the mounting frame 11 to swing when the first transmission member 81 is separated from the second transmission member 82, so that the side brush 30 swings to the extended position, such as Fig.13 As shown, when the side brush 30 swings to the retracted position, the elastic member 83 is in a compressed state, but because the first transmission member 81 is in contact with the second transmission member 82, the restraining force provided by the first transmission member 81 to the second transmission member 82 can overcome the elastic force of the elastic member 83, so that the side brush 30 is fixed in the retracted position; Fig.14As shown, when the side brush 30 needs to swing to the extended position, the first transmission member 81 can be moved to separate from the second transmission member 82, and the elastic force of the elastic member 83 is released. The mounting frame 11 will swing under the elastic force of the elastic member 83, and drive the side brush 30 to swing to the extended position, and when the side brush 30 encounters an obstacle outside the fuselage 90, the part of the side brush 30 extending from the fuselage 90 can be elastically retracted, thereby preventing the side brush 30 from having hard contact and hard friction with the obstacle, and further preventing the side brush 30 from causing bumps and damage to the walls and furniture of the user's home during the movement of the cleaning robot. Specifically, the elastic member 83 can be a torsion spring, and the material of the elastic member 83 can be metal, elastic plastic or other materials, and this application does not make specific restrictions.

[0073] Continue to see Fig.11 and Fig.12 As shown, in one embodiment, the mounting frame 11, the elastic member 83 and the driven gear can be sequentially sleeved on the pin shaft 44 from top to bottom, and rotatably mounted on the support frame 12 through the pin shaft 44. The fifth axis S5 is the axis of the pin shaft 44, making the structure of the side brush assembly more compact.

[0074] In one embodiment, the side brush shell 20 may include an upper shell 22 and a lower shell 23, and the upper shell 22 and the lower shell 23 are arranged vertically and surround a accommodating cavity. The side brush body 31 of the side brush 30 is located in the accommodating cavity. The limiting groove 21 can be set on the side of the lower shell 23 and connected to the accommodating cavity. The upper shell 22 and the lower shell 23 can be detachably connected by connectors such as snaps or screws, so that the side brush shell 20 is detachable for easy inspection and replacement.

[0075] In some embodiments of the present application, the side brush assembly further includes a position detector 64 (eg, Fig.12), the position detector 64 is arranged on the mounting frame 11 or the supporting frame 12, the position detector 64 is communicated with the second driving member 52, the position detector 64 is used to detect the position of the side brush 30, and control the working state of the second driving member 52 according to the position of the side brush 30. It should be noted that the working state of the second driving member 52 includes the opening and closing of the second driving member 52 and the rotation direction of the output shaft of the second driving member 52. When the position detector 64 detects that the side brush 30 swings from the extended position to the retracted position and from the retracted position to the extended position, the position detector 64 can control the second driving member 52 to stop working; in addition, the position detector 64 can also be communicated with the control component of the cleaning robot. When the cleaning robot is required to clean the corner area, the control component of the cleaning robot sends a cleaning signal to the position detector 64. The position detector 64 detects that the side brush 30 is in the retracted position. At this time, the position detector 64 controls the second driving member 52 to start, and the second driving member 52 drives the first transmission member 81 to rotate along the fourth direction K4, so that the first transmission member 81 rotates from the state of contact with the second transmission member 82 to the state of separation from the second transmission member 82, and the mounting bracket 11 will be under the elastic force of the elastic member 83. The lower edge swings in the fourth direction K4, and drives the side brush 30 to swing to the extended position. When the position detector 64 detects that the side brush 30 is in the extended position, the second drive member 52 is controlled to stop working; when cleaning is completed, the control component sends a stop signal to the position detector 64, and the position detector 64 controls the second drive member 52 to start, and the second drive member 52 drives the first transmission member 81 to move along the fourth direction K4. The position detector 64 detects that the side brush 30 is in the extended position. The position detector 64 controls the second drive member 52 to drive the first transmission member 81 to rotate along the third direction K3, so that the first transmission member 81 moves from a state separated from the second transmission member 82 to a state in contact with the second transmission member 82, and then the first transmission member 81 continues to rotate along the third direction K3 to drive the side brush 30 to swing along the third direction K3 to the retracted position. When the position detector 64 detects that the side brush 30 is in the retracted position, the second drive member 52 is controlled to stop working.

[0076] Specifically, the position detector 64 is used to detect the relative position of the driven gear and the driving gear, so as to detect the position of the side brush 30. When the position detector 64 detects that the driving gear is meshed with the driven gear and the driving gear rotates to the meshing stop position, the position detector 64 controls the second driving member 52 to stop, and the side brush 30 is in the retracted position. When the position detector 64 detects that the driving gear is meshed and separated from the driven gear, the position detector 64 controls the second driving member 52 to stop, and the side brush 30 is in the extended position. It can be understood that the position detector 64 can detect the position of the driven gear or / and the driving gear, so as to detect the relative position of the driven gear and the driving gear. The meshing stop position refers to the position of the driving gear when the teeth on the driving gear are about to separate from the driven gear. At this time, the side brush 30 is in the retracted position. The position detector 64 can send position information to the second driving member 52, so that the second driving member 52 stops working.

[0077] In a second aspect, based on the above-mentioned side brush assembly, the present application also provides a cleaning robot, such as Fig.15 and Fig.16 As shown, the cleaning robot includes a body 90 and a side brush assembly as in any of the above embodiments, and the side brush assembly is installed at the bottom of the body 90. The cleaning robot can be a sweeping robot, a sweeping and mopping robot, a mopping robot, or a driving cleaning machine, etc., and the present application does not specifically limit the type of the cleaning robot.

[0078] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A side brush assembly, characterized in that: include: Mounting frame; A side brush housing is rotatably connected to the mounting frame via a first rotating shaft, the side brush housing can rotate relative to the mounting frame around a first axis of the first rotating shaft, a limiting groove is provided on an outer peripheral side surface of the side brush housing, and the limiting groove extends along the circumference of the side brush housing; A side brush, comprising a side brush body and a first brush portion, wherein the side brush body is located in the side brush shell, the side brush body is rotatably connected to the mounting frame via a second rotating shaft, the side brush can rotate relative to the mounting frame around a second axis of the second rotating shaft, the second axis is parallel to the first axis, the first brush portion is connected to the side brush body, and the first brush portion passes through the limiting groove, one end of the first brush portion extending out of the side brush shell is a cleaning end, the first brush portion can rotate relative to the side brush shell between the two ends of the limiting groove, so that the cleaning end is lifted and lowered relative to the side brush shell; A first driving member is disposed on the mounting frame. The first driving member is drivingly connected to the first rotating shaft or the second rotating shaft. The first driving member is used to drive the side brush housing or the side brush to rotate.

2. The side brush assembly according to claim 1, characterized in that: The first bristle portion contacts the bottom wall of the limiting groove, and the bottom wall of the limiting groove extends obliquely along the extension direction of the limiting groove, so that when the first bristle portion rotates along the limiting groove relative to the side brush shell, the cleaning end rises and falls relative to the side brush shell.

3. The side brush assembly according to claim 1, characterized in that: One of the first rotating shaft and the second rotating shaft is arranged around the outer circumference of the other, and the first rotating shaft is spaced apart from the second rotating shaft, and the second axis coincides with the first axis.

4. The side brush assembly according to claim 1, characterized in that: The side brush assembly also includes an inertia enhancement member; The first driving member is in driving connection with the first rotating shaft, and the first driving member is used to drive the side brush housing to rotate around the first axis, and the inertia enhancing member is connected with the side brush body to enhance the rotational inertia of the side brush; or, The first driving member is drivingly connected to the second rotating shaft, and is used to drive the side brush to rotate around the second axis. The inertia enhancing member is connected to the side brush shell to enhance the rotational inertia of the side brush shell.

5. The side brush assembly according to claim 4, characterized in that: The first driving member is in driving connection with the second rotating shaft, the inertia reinforcement member is in rotation connection with the mounting frame via a third rotating shaft, and the inertia reinforcement member can rotate relative to the mounting frame around a third axis of the third rotating shaft; Wherein, the side brush housing is transmission-connected to the inertia reinforcement member so that the inertia reinforcement member and the side brush housing rotate synchronously.

6. The side brush assembly according to claim 5, characterized in that: The mass of the inertia reinforcement member is greater than the mass of the side brush shell, and / or, when the inertia reinforcement member rotates synchronously with the side brush shell, the rotation speed of the inertia reinforcement member is greater than the rotation speed of the side brush shell.

7. The side brush assembly according to claim 1, characterized in that: The first driving member is drivingly connected to the first rotating shaft, and the side brush assembly further comprises: a swinging member, rotatably connected to the second rotating shaft, the swinging member being capable of rotating relative to the second rotating shaft around a fourth axis, the fourth axis being perpendicular to the first axis; Among them, the swinging member rotates synchronously with the second rotating shaft around the second axis. When the rotation speed of the second rotating shaft is less than the first preset rotation speed, the edge of the swinging member contacts the mounting frame. When the rotation speed of the second rotating shaft is greater than the second preset rotation speed, the swinging member swings upward around the fourth axis under the action of centrifugal force and separates from the mounting frame. The second preset rotation speed is greater than the first preset rotation speed.

8. The side brush assembly according to claim 7, characterized in that: The swinging member is located in the mounting frame. When the rotation speed of the second rotating shaft is less than the first preset rotation speed, the edge of the swinging member contacts the inner wall surface of the mounting frame. When the rotation speed of the second rotating shaft is greater than the second preset rotation speed, the swinging member swings upward around the fourth axis under the action of centrifugal force and separates from the inner wall surface of the mounting frame.

9. The side brush assembly according to claim 7, characterized in that: The swinging member comprises: A connecting portion, rotatably connected to the second rotating shaft; A swinging part, wherein a first end of the swinging part is connected to an end of the connecting part away from the second rotating shaft, the swinging part and the connecting part are arranged at an angle, and a second end of the swinging part is arranged upward; Among them, when the rotation speed of the second rotating shaft is less than the first preset rotation speed, the outer edge of the second end of the swinging part contacts the mounting frame, and when the rotation speed of the second rotating shaft is greater than the second preset rotation speed, the swinging part swings upward around the fourth axis under the action of centrifugal force to separate the outer edge of the second end of the swinging part from the mounting frame.

10. The side brush assembly according to claim 9, characterized in that: The outer edge of the second end of the swinging member is arranged as an arc surface.

11. The side brush assembly according to claim 1, characterized in that: The side brush assembly also includes a one-way limiter; Wherein, the first driving member is drivingly connected to the first rotating shaft, the one-way limiting member is connected to the second rotating shaft and the mounting bracket, so that the side brush can rotate along the first rotating direction and prevents the side brush from rotating along the second rotating direction, the second rotating direction is opposite to the first rotating direction, and the first driving member drives the side brush housing to rotate along the first rotating direction, so that when the side brush rotates relative to the side brush housing along the second rotating direction, the cleaning end descends relative to the side brush housing; or The first driving member is drivingly connected to the second rotating shaft, and the one-way limiting member is connected to the first rotating shaft and the mounting bracket, so that the side brush shell can rotate along a third rotation direction and prevents the side brush shell from rotating along a fourth rotation direction, and the fourth rotation direction is opposite to the third rotation direction. The first driving member drives the side brush to rotate along the third rotation direction, so that when the side brush rotates relative to the side brush shell along the third rotation direction, the cleaning end descends relative to the side brush shell.

12. The side brush assembly according to claim 11, characterized in that: The one-way limiting member comprises a one-way bearing; The first driving member is in driving connection with the first rotating shaft, the one-way bearing is sleeved on the second rotating shaft, the inner ring of the one-way bearing is connected with the second rotating shaft, and the outer ring of the one-way bearing is connected with the mounting frame, so that the side brush can rotate along the first rotating direction and prevent the side brush from rotating along the second rotating direction; or, The first driving member is transmission-connected to the second rotating shaft, the one-way bearing is sleeved on the first rotating shaft, the inner ring of the one-way bearing is connected to the first rotating shaft, and the outer ring of the one-way bearing is connected to the mounting frame, so that the side brush housing can rotate along the first rotation direction and prevent the side brush housing from rotating along the second rotation direction.

13. The side brush assembly according to claim 1, characterized in that: The first bristle portion is made of elastic material.

14. The side brush assembly according to any one of claims 1 to 13, characterized in that: The side brush assembly also includes: A support frame, the mounting frame is rotatably connected to the support frame, the mounting frame can swing relative to the support frame around a fifth axis, and the fifth axis is parallel to the first axis; A second driving member is disposed on the support frame, and is used to drive the mounting frame to swing relative to the support frame around the fifth axis so that the side brush switches between an extended position and a retracted position.

15. The side brush assembly according to claim 14, characterized in that: The side brush assembly also includes: A clutch mechanism, the clutch mechanism comprising a first transmission member and a second transmission member, the first transmission member is in transmission connection with the second transmission member, the second transmission member is connected with the mounting frame, and the second transmission member can drive the first transmission member to move so that the first transmission member and the second transmission member are in contact and separation; Wherein, when the first transmission member is in contact with the second transmission member, the second transmission member can drive the mounting frame to swing around the fifth axis through the transmission of the first transmission member and the second transmission member.

16. The side brush assembly according to claim 15, characterized in that: The clutch mechanism also includes: An elastic member abuts against the support frame and the mounting frame; when the first transmission member moves to separate from the second transmission member, the elastic member drives the mounting frame to swing around the fifth axis so that the side brush swings to the extended position; when the second driving member drives the side brush to swing from the extended position to the retracted position, the elastic member is compressed.

17. A cleaning robot, characterized in that: The cleaning robot comprises a body and a side brush assembly as claimed in any one of claims 1 to 16, wherein the side brush assembly is mounted at the bottom of the body.

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