Side brush components and cleaning robot
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-20
- Publication Date
- 2026-08-11
AI Technical Summary
[0003]然而，在相关技术中，当清洁机器人移动至毛毯等具有毛绒的毛织物上时，边刷上刷毛会与毛绒发生抵触，清洁机器人在毛织物移动时刷毛会发生较大的弯折导致刷毛损伤
[0013]本申请的有益效果为：当清洁机器人移动至毛织物上或者有积液的区域时，可以通过第一驱动件驱动边刷壳沿第一方向转动，从而使得清扫端由工作位置相对于边刷壳抬升至收纳位置，使得清扫端抬离毛织物或者地面，可以防止清扫端与毛绒抵触导致刷毛损伤，可以提升边刷组件的使用寿命，并且可以减小清洁机器人在毛织物上行走时的阻力，防止清洁机器人出现行走卡顿，还可以防止清扫端将液体甩到四周造成大面积的污染。此外，在本申请中，边刷能够沿第一方向转动时，当清扫端与墙面和家具等发生碰撞时，边刷可以受力沿第一方向转动，从而降低清扫端与墙面和家具等发生硬碰撞导致边刷、墙面和家具等损坏的概率。
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Figure CN224612535U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of cleaning equipment technology, and more particularly to a side brush assembly and a cleaning robot. Background Technology
[0002] The cleaning function of a cleaning robot is generally achieved through roller brushes and side brushes. The motor drives the side brushes to rotate relative to the body to achieve the cleaning function.
[0003] However, in related technologies, when the cleaning robot moves onto plush fabrics such as blankets, the bristles on the side brush will come into contact with the plush, causing the bristles to bend significantly and become damaged as the cleaning robot moves across the fabric. Utility Model Content
[0004] This application provides a side brush assembly and a cleaning robot, which can raise the cleaning end of the side brush to prevent the brush bristles from bending excessively and causing damage when the cleaning robot moves on the fabric.
[0005] In a first aspect, this application provides a brush component, comprising:
[0006] Mounting rack;
[0007] The side brush housing is rotatably connected to the mounting bracket via a rotating shaft. A limiting groove is provided on the circumferential side of the side brush housing, and the limiting groove extends along the circumferential direction of the side brush housing.
[0008] The side brush includes a side brush body, a limiting shaft, and a bristle portion. The side brush body is located inside the side brush shell and is connected to the rotating shaft through the limiting shaft. The bristle portion is connected to the side brush body and passes through the limiting groove. One end of the bristle portion extending out of the side brush shell is the cleaning end.
[0009] A first driving member is disposed on the mounting bracket. The first driving member is connected to the rotating shaft for transmission. The first driving member is used to drive the side brush shell to rotate along a first direction and a second direction, so as to drive the side brush to rotate along the first direction and the second direction, wherein the first direction is opposite to the second direction.
[0010] A first limiting member, connected to the mounting bracket, is configured to prevent the side brush from rotating in the first direction when the side brush rotates to a first limiting position, so that the first driving member can drive the side brush housing to continue rotating in the first direction relative to the side brush, thereby causing the side brush housing to lift the cleaning end; the first limiting member is also configured to allow the side brush to rotate in the second direction, so that the first driving member can drive both the side brush housing and the side brush to rotate in the second direction;
[0011] The side brush assembly is further configured such that the side brush housing can rotate relative to the side brush in the second direction, thereby causing the side brush housing to drive the cleaning end to descend. After the cleaning end descends, the side brush can also rotate with the side brush housing in the second direction.
[0012] Secondly, this application also provides a cleaning robot, which includes a body and a side brush assembly, the side brush assembly being installed at the bottom of the body.
[0013] The beneficial effects of this application are as follows: When the cleaning robot moves onto a fabric or an area with accumulated liquid, the first driving component can drive the side brush housing to rotate in the first direction, thereby raising the cleaning end from its working position relative to the side brush housing to its storage position. This lifts the cleaning end away from the fabric or the ground, preventing damage to the bristles from contact with the fibers, extending the lifespan of the side brush assembly, reducing the resistance when the cleaning robot moves on fabrics, preventing the robot from getting stuck, and preventing the cleaning end from splashing liquid around and causing large-scale pollution. Furthermore, in this application, when the side brush can rotate in the first direction, when the cleaning end collides with walls or furniture, the side brush can be forced to rotate in the first direction, thereby reducing the probability of damage to the side brush, walls, and furniture due to hard collisions. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the side brush assembly when the cleaning end is in the working position according to one embodiment of this application;
[0016] Figure 2 This is a partial structural diagram of the side brush assembly when the cleaning end is in the working position according to one embodiment of this application;
[0017] Figure 3 This is an exploded view of the side brush assembly when the cleaning end is in the working position according to one embodiment of this application;
[0018] Figure 4 This is a partial structural diagram of the side brush assembly when the cleaning end is in the working position according to one embodiment of this application;
[0019] Figure 5 This is a partial structural diagram of the side brush assembly when the side brush is located at the first limiting position in one embodiment of this application;
[0020] Figure 6 This is a partial structural diagram of the side brush assembly when the cleaning end is in the storage position according to one embodiment of this application;
[0021] Figure 7 This is a partial structural diagram of the side brush assembly when the cleaning end is in the storage position according to one embodiment of this application;
[0022] Figure 8 This is a schematic diagram of the side brush assembly when the side brush is located at the second limiting position in one embodiment of this application;
[0023] Figure 9 This is a schematic diagram of the side brush assembly in one embodiment of this application when the cleaning end is located on one side of the second limiting member along the second direction;
[0024] Figure 10 This is a partial schematic diagram of a cleaning robot in one embodiment of this application.
[0025] Figure label:
[0026] 10. Side brush assembly; 20. Mounting bracket; 31. Side brush shell; 311. Limiting groove; 311a. First end; 311b. Second end; 311c. Bottom wall surface; 32. Rotating shaft; 40. Side brush; 41. Side brush body; 42. Limiting shaft; 421. First side surface; 422. Connecting surface; 43. Brush bristle part; 431. Cleaning end; 50. First driving component; 51. Output shaft; 60. Gear transmission mechanism; 61. Gear; 71. First limiting component; 72. Support shaft; 73. Elastic component; 74. Limiting component; 80. Second limiting component; 81. Limiting surface; 82. Guide surface; 90. Body; K1. First axis centerline; K2. Second axis centerline; K3. Third axis centerline; R1. First direction; R2. Second direction; X1. Forward direction; X2. Reverse direction. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0028] The cleaning function of a cleaning robot is generally achieved through roller brushes and side brushes. The motor drives the side brushes to rotate relative to the body to achieve the cleaning function.
[0029] However, in related technologies, when the cleaning robot moves onto plush fabrics such as blankets, the bristles on the side brush come into contact with the plush, causing significant bending and damage to the bristles as the robot moves across the fabric. This affects the lifespan of the side brush assembly. Furthermore, the interference and obstruction of the plush on the bristles increases the resistance as the cleaning robot moves across the fabric, making it prone to getting stuck. In addition, when the cleaning robot moves to areas with accumulated liquid, the bristles on the side brush come into contact with the liquid, and as the side brush rotates, it splashes the liquid around, causing widespread contamination.
[0030] To address the aforementioned problems, this application provides a side brush assembly and a cleaning robot.
[0031] Firstly, this application provides a side brush component 10, such as... Figure 1 and Figure 2 As shown, the side brush assembly 10 includes a mounting bracket 20, a side brush housing 31, and a side brush 40.
[0032] The side brush housing 31 is rotatably connected to the mounting frame 20 via a rotating shaft 32, allowing the side brush housing 31 to rotate relative to the mounting frame 20 around the first axis K1 of the rotating shaft 32. A limiting groove 311 is provided on the circumference of the side brush housing 31, extending circumferentially along the side brush housing 31. The side brush 40 includes a side brush body 41, a limiting shaft 42, and a bristle part 43. The side brush body 41 is located inside the side brush housing 31 and is connected to the rotating shaft 32 via the limiting shaft 42, allowing the side brush to rotate relative to the mounting frame 20 around the second axis K2 of the limiting shaft 42. The bristle part 43 is connected to the side brush body 41 and passes through the limiting groove 311. One end of the bristle part 43 extending out of the side brush housing 31 is the cleaning end 431.
[0033] It is understood that the first axis K1 is the axis of the rotating shaft 32, and the second axis K2 is the axis of the limiting shaft 42. The second axis K2 can coincide with the first axis K1, so that the rotating shaft 32 and the limiting shaft 42 are set on the same axis. The end of the bristle part 43 connected to the side brush body 41 is the connecting end, and the end of the bristle part 43 located outside the side brush shell 31 is the cleaning end 431. When the side brush 40 rotates, it cleans the ground through the cleaning end 431. The side brush 40 may include one bristle part 43 or multiple bristle parts 43. When the side brush 40 includes multiple bristle parts 43, the multiple bristle parts 43 can be arranged circumferentially along the side brush body 41.
[0034] Specifically, such as Figure 2 and Figure 3As shown, the side brush assembly 10 also includes a first driving member 50, which is disposed on the mounting bracket 20. The first driving member 50 is connected to the rotating shaft 32 for transmission. The first driving member 50 is used to drive the side brush shell 31 to rotate along a first direction R1 and a second direction R2, thereby driving the side brush 40 to rotate along the first direction R1 and the second direction R2. The second direction R2 is opposite to the first direction R1. It can be understood that the first driving member 50 can be a motor or other driving member. The first driving member 50 is used to drive the side brush shell 31 to rotate around the first axis K1 of the rotating shaft 32. The output shaft 51 of the first driving member 50 can be directly fixedly connected to the rotating shaft 32. The output shaft 51 of the first driving member 50 can also be transmitted through a gear 61 transmission mechanism 60 (such as...). Figure 3 The gear transmission mechanism 60 includes multiple meshing gears 61, and the output shaft 51 is connected to the rotating shaft 32 through multiple gears 61. The transmission mechanism, such as the pulley transmission mechanism, is also connected to the rotating shaft 32. The first driving member 50 can drive the side brush shell 31 to rotate along the first direction R1 and the second direction R2. When the first driving member 50 drives the side brush shell 31 to rotate along the first direction R1, the friction between the rotating shaft 32 and the limiting shaft 42 and the friction between the bristle part 43 and the side brush shell 31 can drive the side brush 40 to rotate along the first direction R1. Similarly, when the first driving member 50 drives the side brush shell 31 to rotate along the second direction R2, the friction between the rotating shaft 32 and the limiting shaft 42 and the friction between the bristle part 43 and the side brush shell 31 can also drive the side brush 40 to rotate along the second direction R2, thereby enabling the side brush 40 to rotate along the first direction R1 and the second direction R2.
[0035] More specifically, such as Figures 4 to 7 As shown, the side brush assembly 10 also includes a first limiting member 71, which is connected to the mounting bracket 20. The first limiting member 71 is configured so that the side brush 40 rotates along the first direction R1 to a first limiting position (e.g., Figure 5 When the first drive member 50 drives the side brush 40 to rotate in the first direction R1, it prevents the side brush 40 from rotating, so that the first drive member 50 can drive the side brush housing 31 to continue rotating in the first direction R1 relative to the side brush 40, thereby causing the side brush housing 31 to lift the cleaning end 431. The first limit member 71 is also configured to allow the side brush 31 to rotate in the second direction R2, so that the first drive member 71 can drive both the side brush housing 31 and the side brush 40 to rotate in the second direction R2. It can be understood that when the first drive member 50 drives the side brush housing 31 to rotate in the first direction R1, so that the side brush 40 rotates in the second direction R2 relative to the side brush housing 31, the cleaning end 431 is lifted relative to the side brush housing 31; when the first drive member 50 drives the side brush housing 31 to rotate in the second direction R2, so that the side brush 40 rotates in the first direction R1 relative to the side brush housing 31, the cleaning end 431 is lowered relative to the side brush housing 31.
[0036] It should also be noted that when the side brush 40 rotates relative to the side brush housing 31, the bristle portion 43 rotates between the two ends of the limiting groove 311 relative to the side brush housing 31, so that the cleaning end 431 rises and falls relative to the side brush housing 31. During the rising and falling trajectory of the bristle portion 43, the cleaning end 431 has a working position (e.g., ...). Figure 1 , Figure 4 and Figure 5 ) and storage location (such as Figure 7 The working position is the lowest position of the cleaning end 431, and the storage position is the highest position of the cleaning end 431. When the bristle part 43 rotates relative to the side brush shell 31 along the first direction R1 to the first end 311a of the limiting groove 311 ( Figure 1 and Figure 7 When the left end of the middle limiting groove 311 is reached, the cleaning end 431 descends to the working position; when the bristle part 43 rotates relative to the side brush shell 31 along the second direction R2 to the second end 311b of the limiting groove 311 ( Figure 1 and Figure 7 When the right end of the middle limit groove 311 is reached, the cleaning end 431 is raised to the storage position.
[0037] It should be noted that, as Figure 1 and Figure 4 As shown, when the cleaning robot is cleaning the ground normally, the bristle part 43 is located at the first end 311a of the limiting groove 311. At this time, the cleaning end 431 is in the working position and is in contact with the ground. The first driving member 50 can drive the rotating shaft 32 to rotate, thereby driving the side brush shell 31 to rotate along the second direction R2. The limiting effect of the limiting groove 311 pushes the bristle part 43 and the side brush shell 31 to rotate along the second direction R2. Thus, the cleaning end 431 cleans the ground. The first limiting member 71 will not obstruct the side brush 40 from rotating along the second direction R2, so that the side brush 40 can follow the side brush shell 31 to rotate normally along the second direction R2.
[0038] When the cleaning robot moves onto a fabric or an area with accumulated liquid, the first drive unit 50 can drive the side brush housing 31 to rotate along the first direction R1. At this time, the friction between the bristle part 43 and the groove wall of the limiting groove 311 causes both the side brush 40 and the side brush housing 31 to rotate along the first direction R1, thereby causing the limiting shaft 42 to rotate. Figure 4 Rotate to the position shown Figure 5 At the position shown, the side brush 40 rotates to the first limit position (as shown). Figure 5When the first driving member 50 drives the side brush housing 31 to continue rotating along the first direction R1, the first limiting member 71 prevents the side brush 40 from rotating along the first direction R1, so that the side brush 40 will not continue to follow the side brush housing 31 to rotate along the first direction R1. The side brush housing 31 rotates relative to the side brush 40 along the first direction R1, thereby causing the side brush 40 to rotate relative to the side brush housing 31 along the second direction R2, and then causing the bristle part 43 to be raised from the first end 311a of the limiting groove 311 to the second end 311b of the limiting groove 311 (as shown in the image). Figure 6 and Figure 7 When the first drive unit 50 stops working, the cleaning end 431 is raised from the working position to the storage position relative to the side brush shell 31, so that the cleaning end 431 is lifted away from the fabric or the ground. This can prevent the cleaning end 431 from contacting the fabric and causing damage to the bristles, can improve the service life of the side brush assembly 10, can reduce the resistance when the cleaning robot walks on the fabric, prevent the cleaning robot from getting stuck, and can also prevent the cleaning end 431 from splashing liquid around and causing large-area pollution.
[0039] It should also be noted that, compared to designing the side brush 40 to rotate only in the second direction R2 and not in the first direction R1, during the movement of the cleaning robot, when the cleaning end 431 collides with the wall and furniture, causing the cleaning end 431 to be subjected to a large force in the first direction R1, the side brush 40 is prone to significant bending and damage because it cannot rotate in the first direction R1, and it is also prone to damage to the wall and furniture; however, in this application, when the side brush 40 is in other positions of the first limit position, the side brush 40 can also rotate in the first direction R1. When the cleaning end 431 collides with walls and furniture, causing it to be subjected to a large force along the first direction R1, the side brush 40 can rotate under this force, thereby reducing the probability of damage to the side brush 40, walls, and furniture due to hard collisions between the cleaning end 431 and the walls and furniture. Furthermore, by designing the first limiting position, the cleaning end 431 can be positioned at a specified angle and location, allowing it to be more concealed within the robot's body 90 when the side brush assembly 10 is not needed (e.g., ...). Figure 10 By reducing the exposed portion of the cleaning end 431 at the bottom of the robot body, the robot's ability to navigate narrow spaces and turn can be improved. It can also prevent the cleaning end 431 from bumping into and damaging the user's walls and furniture during the robot's movement.
[0040] Specifically, the side brush assembly is also configured such that the side brush housing 31 can rotate relative to the side brush 40 along the second direction R2, thereby causing the side brush housing 31 to drive the cleaning end 431 to descend. After the cleaning end 431 descends, the side brush 40 can also rotate with the side brush housing 31 along the second direction R2.
[0041] Understandably, after the cleaning robot leaves the area with the lint and accumulated liquid, the first drive unit 50 can be activated. The first drive unit 50 drives the side brush housing 31 to rotate along the second direction R2, ensuring that the rotational speed of the side brush 40 along the second direction R2 is less than the rotational speed of the side brush housing 31 along the second direction R2. This allows the side brush housing 31 to rotate relative to the side brush 40 along the second direction R2, thereby causing the bristle portion 43 to move from the second end 311b of the limiting groove 311 (e.g., ...). Figure 7 When it descends to the first end 311a of the limiting groove 311 (e.g.) Figure 1 When the first drive unit 50 stops working, the sweeping end 431 is lowered from the storage position to the working position relative to the side brush shell 31. The sweeping end 431 contacts the ground. Since the side brush 40 can still rotate along the second direction R2 with the side brush shell 31 after the sweeping end 431 is lowered, when the first drive unit 50 drives the side brush shell 31 to rotate along the second direction R2, the side brush shell 31 pushes the sweeping end 431 to rotate along the second direction R2 to sweep the road surface.
[0042] Specifically, by designing the inertia of the side brush shell 31 and the side brush 40, as well as the friction between them, the side brush shell 31 can rotate relative to the side brush 40 along the second direction R2 after the cleaning end 431 is raised. For example, at the instant when the side brush shell 31 goes from rest to motion, the side brush 40 is still in a stationary state. The inertia and gravity of the bristle part 43 can overcome the friction between the bristle part 43 and the groove wall of the limiting groove 311, so that when the bristle part 43 rotates with the first driving member 50 along the second direction R2, the rotation speed of the bristle part 43 is less than the rotation speed of the first driving member 50, thereby allowing the side brush shell 31 to rotate relative to the side brush 40 along the second direction R2.
[0043] Of course, additional components can also be added to the side brush 40 so that after the cleaning end 431 is raised, the side brush shell 31 can rotate relative to the side brush 40 along the second direction R2. For example, a limiting structure that increases the rotational resistance of the side brush 40 can be set so that the rotational speed of the side brush 40 along the second direction R2 can be less than the rotational speed of the side brush shell 31 along the second direction R2. Alternatively, an inertial component that increases the inertia of the side brush 40 can be added so that when the side brush shell 31 rotates from the first direction R1 to a standstill, the side brush 40 still rotates along the first direction R1, thereby allowing the side brush shell 31 to rotate relative to the side brush 40 along the second direction R2.
[0044] See also Figures 4 to 6As shown, in some embodiments, the outer peripheral side of the limiting shaft 42 includes a first side surface 421 and a connecting surface 422. The first side surface 421 is an arcuate surface extending around the second axis K2, and the connecting surface 422 extends away from the second axis K2, with both ends of the connecting surface 422 connected to both ends of the first side surface 421. It is understood that the distances between the two ends of the first side surface 421 and the second axis K2 are different, allowing the two ends of the first side surface 421 to form a stepped structure. The connecting surface 422 can be a plane, an inclined plane, or a combination of an inclined plane and a plane.
[0045] The first limiting member 71 is located on the outer periphery of the limiting shaft 42 and on the rotation trajectory of the connecting surface 422. When the side brush 40 rotates to the first limiting position along the first direction R1, the first limiting member 71 abuts against the connecting surface 422 to prevent the side brush 40 from rotating along the first direction R1. It can be understood that when the side brush 40 rotates to the first limiting position, the first limiting member 71 is located on one side of the connecting surface 422 along the first direction R1. The first limiting member 71 can prevent the limiting shaft 42 from rotating along the first direction R1, thereby preventing the side brush 40 from rotating along the first direction R1.
[0046] In some embodiments, the first limiting member 71 abuts against the first side surface 421 to provide rotational resistance to the side brush 40, so that the side brush housing 31 can rotate relative to the side brush 40 in the second direction R2. Understandably, when the cleaning end 431 is in the storage position and needs to be moved to the working position, the first driving member 50 can drive the side brush shell 31 to rotate along the second direction R2, thereby driving the side brush 40 to rotate along the second direction R2. At this time, since the first limiting member 71 abuts against the first side 421, the first limiting member 71 can provide rotational resistance to the side brush 40, so that the rotational speed of the side brush 40 is less than the rotational speed of the side brush shell 31, so that the first driving member 50 can drive the side brush shell 31 to rotate relative to the side brush 40 along the second direction R2, thereby allowing the cleaning end 431 to descend from the storage position relative to the side brush shell 31 to the working position. In addition, when the first driving member 50 drives the side brush shell 31 to rotate along the first direction R1, the driving force provided by the side brush shell 31 to the side brush 40 can overcome the rotational resistance provided by the first limiting member 71 to the side brush 40, so that the side brush 40 and the side brush shell 31 can both rotate along the first direction R1.
[0047] In some embodiments of this application, at least a portion of the structure of the first limiting member 71 is elastic, so that the first limiting member 71 always tends to abut against the limiting shaft 42. When the side brush 40 rotates along the second direction R2, the driving force of the side brush 40 can overcome the rotational resistance of the first limiting member 71 to the limiting shaft 42, thereby enabling the side brush 40 to rotate along the second direction R2, preventing the first limiting member 71 from causing the side brush 40 to jam. At the same time, the first limiting member 71 can maintain contact with the limiting shaft 42, so that the first limiting member 71 can always provide sufficient rotational resistance for the side brush 40, and can ensure that when the side brush 40 rotates along the first direction R1 to the first limiting position, the first limiting member 71 can abut against the connecting surface 422.
[0048] In some embodiments, the first limiting member 71 includes a limiting component 74 and an elastic member. The limiting component 74 is rotatably connected to the mounting frame 20 via a support shaft 72. The third axis K3 of the support shaft 72 is parallel to the first axis K1. The elastic member 73 is connected to the limiting component 74 and the mounting frame 20. The elastic member 73 is used to ensure that the limiting component 74 always has a tendency to abut against the limiting shaft 42, so as to provide rotational resistance for the side brush 40.
[0049] It is understood that the third axis K3 is the axis of the support shaft 72, which can be located to the side of the limiting shaft 42 and the rotating shaft 32. When the side brush 40 rotates along the second direction R2, the limiting component 74 can rotate with the rotation of the first side surface 421, thus making the side brush 40 rotate more smoothly along the second direction R2 and preventing the limiting component 74 from causing the side brush 40 to jam. At the same time, the elastic element 73 allows the limiting component 74 to maintain contact with the limiting shaft 42, so that the limiting component 74 can always provide sufficient rotational resistance for the side brush 40, and can ensure that when the side brush 40 rotates along the first direction R1 to the first limiting position, the limiting component 74 can contact the connecting surface 422. The elastic element 73 can be a spring, a sponge block, a spring sheet, a rubber block, or other elastic object.
[0050] In other embodiments, the first limiting member 71 can also be configured as an elastic limiting member. One end of the first limiting member 71 is connected to the mounting bracket 20, and when the side brush 40 rotates along the first direction R1 to the first limiting position, the other end of the first limiting member 71 elastically abuts against the connecting surface 422. The first limiting member 71 can be made of rubber, elastic metal, or other materials. Furthermore, when the side brush 40 rotates along the first direction R1 to the first limiting position, the other end of the first limiting member 71 can also elastically abut against the first side surface 421.
[0051] In some embodiments, a portion of the limiting shaft 42 extends into the mounting frame 20, and the first limiting member 71 and the elastic member 73 are both located within the mounting frame 20, which can further reduce the overall volume of the side brush assembly 10, thereby making it easier to install the side brush assembly 10 on the cleaning robot.
[0052] like Figure 7 and Figure 8 As shown, in some embodiments of this application, the side brush assembly 10 further includes a second limiting member 80, which is connected to the mounting bracket 20. The second limiting member 80 is configured so that the side brush 40 rotates along the second direction R2 to a second limiting position (e.g., Figure 8 When the first drive member 50 is in motion, it prevents the side brush 40 from rotating in the second direction R2, so that the first drive member 50 can drive the side brush housing 31 to continue rotating in the second direction R2 relative to the side brush 40, thereby causing the side brush housing 31 to drive the cleaning end 431 to descend; the second limit member 80 is also configured to allow the side brush 40 to rotate in the second direction R2 with the side brush housing 31 after the cleaning end 431 descends.
[0053] Understandably, the brush is 40. Figure 7 The position shown is rotated along the second direction R2 to Figure 8 When the side brush 40 is in the position shown, the first driving member 50 drives the side brush shell 31 to continue rotating along the second direction R2. The second limiting member 80 prevents the side brush 40 from rotating along the second direction R2, so that the side brush 40 will not continue to follow the side brush shell 31 to rotate along the second direction R2. This causes the side brush shell 31 to rotate relative to the side brush 40 along the second direction R2. As a result, when the bristle part 43 descends from the second end 311b of the limiting groove 311 to the first end 311a of the limiting groove 311, the cleaning end 431 descends from the storage position relative to the side brush shell 31 to the working position. At this time, the second limiting member 80 allows the side brush 40 to rotate with the side brush shell 31 along the second direction R2 to perform cleaning work.
[0054] In some embodiments, the second limiting member 80 is disposed on the side brush housing 31. When the cleaning end 431 is raised to the highest position (i.e., the storage position), the second limiting member 80 is located on the rotation trajectory of the bristle portion 43. When the side brush 40 rotates along the second direction R2 to the second limiting position, the second limiting member 80 abuts against the bristle portion 43 to prevent the side brush 40 from rotating along the second direction R2. It can be understood that when the side brush 40 is in the second limiting position, the second limiting member 80 is located on one side of the bristle portion 43 along the second direction R2. The side of the second limiting member 80 facing the bristle portion 43 is the limiting surface 81. The limiting surface 81 can prevent the bristle portion 43 from rotating along the second direction R2, thereby preventing the side brush 40 from rotating along the second direction R2.
[0055] It should also be noted that the second limiting member 80 can be set on the inner or outer side of the side brush housing 31. When the second limiting member 80 is set on the outer side of the side brush housing 31 and the cleaning end 431 is in the storage position, the second limiting member 80 is located on the rotation trajectory of the cleaning end 431. The second limiting member 80 can prevent the cleaning end 431 from rotating in the second direction R2, thereby preventing the side brush 40 from rotating in the second direction R2.
[0056] Furthermore, such as Figure 9 As shown, the second limiting member 80 includes a guide surface 82, which is inclined from top to bottom along the first direction R1. The guide surface 82 is used to contact the bristle portion 43 when the side brush 40 rotates along the first direction R1. It can be understood that the guide surface 82 is arranged opposite to the limiting surface 81. When the side brush 40 is not in the first limiting position, and the side brush 40 rotates to the first limiting position along the first direction R1, the cleaning end 431 needs to pass through the second limiting member 80. When the side brush 40 rotates along the first direction R1, the cleaning end 431 will rotate from the side of the guide surface 82 where the second limiting member 80 is located towards the second limiting member 80. When the cleaning end 431 contacts the guide surface 82, it can bend and deform along the guide surface 82 to prevent the second limiting member 80 from causing the side brush 40 to jam.
[0057] In some embodiments, such as Figure 1 As shown, when the cleaning end 431 descends to the lowest position (i.e., the working position), the second limiting member 80 is located outside the rotation trajectory of the cleaning end 431 to avoid the cleaning end 431. This allows the cleaning end 431 to avoid the second limiting member 80 when the side brush shell 31 drives the cleaning end 431 to rotate along the second direction R2 to clean the ground, thus preventing the second limiting member 80 from obstructing the rotation of the cleaning end 431.
[0058] In some embodiments, the bristle portion 43 is made of an elastic material, making the bristle portion 43 elastic and able to swing up and down relative to the side brush housing 31, so that the bristle portion 43 can move up and down relative to the side brush housing 31 without being connected to the side brush body 41 by a hinge or other means. The bristle portion 43 may be made of rubber, elastic metal or other materials.
[0059] In some embodiments, the side brush assembly 10 may further include a position detector, which may be disposed on the mounting bracket 20. The position detector is communicatively connected to the first drive member 50. The position detector is used to detect the position of the cleaning end 431 and control the working state of the first drive member 50 according to the position of the cleaning end 431. It should be noted that the working state of the first drive member 50 includes the opening and closing of the first drive member 50 and the rotation direction of the output shaft 51 of the first drive member 50. When the position detector detects that the cleaning end 431 has moved to the storage position, the position detector can control the first drive member 50 to stop working.
[0060] Secondly, based on the aforementioned side brush component 10, this application also provides a cleaning robot, such as... Figure 10 As shown, the cleaning robot includes a body 90 and a side brush assembly 10 as described in any of the above embodiments, the side brush assembly 10 being mounted on the bottom of the body 90. The cleaning robot can be a sweeping robot, a sweeping and mopping robot, or a floor-wiping robot, etc., and this application does not specifically limit the type of cleaning robot.
[0061] In some embodiments, after the cleaning end 431 is raised, it faces the tail of the body 90. It should be noted that the body 90 of the cleaning robot has a head (also called the front part) and a tail (also called the rear part). The direction from the head to the tail is the backward direction X2 of the cleaning robot, and the direction from the tail to the head is the forward direction X1. The cleaning end 431 facing the tail of the body 90 does not mean that the cleaning end 431 is parallel to the forward and backward direction, but rather that the side brush 40 as a whole has an orientation facing the tail of the body 90. When the cleaning robot moves along the forward direction X1 on the fabric, if the cleaning end 431 faces the head of the body 90, the cleaning end 431 may droop and come into contact with the fabric under the influence of gravity. As the cleaning robot moves along the forward direction X1... When the robot moves, the lint will come into contact with the cleaning end 431, causing it to bend and deform downwards, which could damage the bristles 40. However, in this embodiment, the cleaning end 431 faces the tail of the body 90. When the cleaning robot moves along the forward direction X1 on the fabric, firstly, the side brush shell 31 acts as a barrier between the cleaning end 431 and the lint. During the movement, the side brush shell 31 can separate the lint to both sides of the side brush shell 31 to prevent the cleaning end 431 from contacting the lint. Secondly, even if the cleaning end 431 droops down and contacts the lint, the resistance exerted by the lint on the cleaning end 431 will cause the cleaning end 431 to deform upwards and return to its original position. The impact on the cleaning end 431 is small and it is difficult to cause damage to the bristles.
[0062] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A side brush assembly, characterized in that, include: Mounting rack; The side brush housing is rotatably connected to the mounting bracket via a rotating shaft. A limiting groove is provided on the circumferential side of the side brush housing, and the limiting groove extends along the circumferential direction of the side brush housing. The side brush includes a side brush body, a limiting shaft, and a bristle portion. The side brush body is located inside the side brush shell and is connected to the rotating shaft through the limiting shaft. The bristle portion is connected to the side brush body and passes through the limiting groove. One end of the bristle portion extending out of the side brush shell is the cleaning end. A first driving member is disposed on the mounting bracket. The first driving member is connected to the rotating shaft for transmission. The first driving member is used to drive the side brush shell to rotate along a first direction and a second direction, so as to drive the side brush to rotate along the first direction and the second direction, wherein the first direction is opposite to the second direction. A first limiting member, connected to the mounting bracket, is configured to prevent the side brush from rotating in the first direction when the side brush rotates to a first limiting position, so that the first driving member can drive the side brush housing to continue rotating in the first direction relative to the side brush, thereby causing the side brush housing to lift the cleaning end; the first limiting member is also configured to allow the side brush to rotate in the second direction, so that the first driving member can drive both the side brush housing and the side brush to rotate in the second direction; The side brush assembly is further configured such that the side brush housing can rotate relative to the side brush in the second direction, thereby causing the side brush housing to drive the cleaning end to descend. After the cleaning end descends, the side brush can also rotate with the side brush housing in the second direction.
2. The side brush assembly according to claim 1, characterized in that, The outer peripheral side of the limiting shaft includes a first side and a connecting surface. The first side is an arc surface extending around the second axis. The connecting surface extends away from the second axis, and the two ends of the connecting surface are respectively connected to the two ends of the first side. The first limiting member is located on the outer periphery of the limiting shaft and on the rotation trajectory of the connecting surface. When the side brush rotates to the first limiting position along the first direction, the first limiting member abuts against the connecting surface to prevent the side brush from rotating along the first direction.
3. The side brush assembly according to claim 2, characterized in that, The first limiting member abuts against the first side to provide rotational resistance to the side brush, so that the side brush shell can rotate relative to the side brush in the second direction.
4. The side brush assembly according to any one of claims 1 to 3, characterized in that, At least a portion of the structure of the first limiting member is elastic, so that the first limiting member always tends to abut against the limiting axis.
5. The side brush assembly according to claim 4, characterized in that, The first limiting member includes a limiting component and an elastic component. The limiting component is rotatably connected to the mounting frame via a support shaft. The third axis of the support shaft is parallel to the first axis of the rotating shaft. The elastic component is connected to the limiting component and the mounting frame so that the limiting component always tends to abut against the limiting shaft. or, The first limiting member is an elastic limiting member.
6. The side brush assembly according to claim 1, characterized in that, The bristles contact the bottom wall of the limiting groove, and the bottom wall of the limiting groove is inclined from top to bottom along the first direction.
7. The side brush assembly according to claim 1, characterized in that, The side brush assembly also includes: The second limiting member is connected to the mounting bracket. The second limiting member is configured to prevent the side brush from rotating in the second direction when the side brush rotates to the second limiting position in the second direction, so that the first driving member can drive the side brush shell to continue rotating in the second direction relative to the side brush, thereby causing the side brush shell to drive the cleaning end to descend. The second limiting member is also configured to allow the side brush to rotate in the second direction with the side brush shell after the cleaning end descends.
8. The side brush assembly according to claim 7, characterized in that, The second limiting member is disposed on the inner or outer side of the side brush shell. When the cleaning end is raised to the highest position, the second limiting member is located on the rotation trajectory of the bristle part. When the side brush rotates to the second limiting position along the second direction, the second limiting member abuts against the bristle part to prevent the side brush from rotating along the second direction.
9. The side brush assembly according to claim 8, characterized in that, The second limiting member includes a guide surface, which is inclined from top to bottom along the first direction. The guide surface is used to contact the bristle portion when the side brush rotates along the first direction.
10. The side brush assembly according to claim 8, characterized in that, When the cleaning end descends to its lowest position, the second limiting member is located outside the rotation trajectory of the cleaning end to avoid the cleaning end.
11. A cleaning robot, characterized in that, The cleaning robot includes a body and a side brush assembly as described in any one of claims 1 to 10, the side brush assembly being mounted on the bottom of the body.
12. The cleaning robot according to claim 11, characterized in that, After the cleaning end is raised, the cleaning end faces the rear of the machine body.