Side brush mechanism and sweeping robot

Abstract

The invention relates to the technical field of sweeping robots, in particular to a side brush mechanism and a sweeping robot. The side brush mechanism comprises a shell, a driving assembly, a one-way damping bearing and a side brush assembly. The side brush assembly comprises a side brush shell, a sleeve and a side brush, and the side brush shell is rotationally installed on the shell through a one-way damping bearing. The sleeve comprises a sleeve body and shifting blocks, the sleeve body is coaxially and movably installed in the side brush shell, the two shifting blocks are arranged on the sleeve body in the circumferential direction at intervals, and the driving assembly is in transmission connection with the sleeve body. The side brush comprises a main brush body and an overturning piece which are connected, and the overturning piece is rotationally installed on the side brush shell and is provided with a first position for driving the main brush body to descend to the cleaning position and a second position for driving the main brush body to ascend to the folding position away from the ground. The end, away from the main brush body, of the overturning piece extends into the position between the two shifting blocks. The sweeping robot comprises the side brush mechanism, the side brush is prevented from being abraded during standby movement, the service life and the replacement period of the side brush are prolonged, the use cost is reduced, and the user experience is improved.

Description

Technical Field

[0001] This invention relates to the field of robotic vacuum cleaner technology, and more particularly to a side brush mechanism and a robotic vacuum cleaner. Background Technology

[0002] Robotic vacuum cleaners primarily rely on the roller brush in their main brush mechanism to pick up dust and debris from carpets or floors, and then use an internal fan to generate airflow to suck the dust and debris into the dustbin. Since the roller brush's coverage area is limited, a side brush mechanism is needed. The bristles of the side brush mechanism gather dust into the area covered by the roller brush, increasing the cleaning coverage area.

[0003] When a robot vacuum cleaner is in standby mode and moving, such as between the cleaning area (carpet, etc.) and the charging area, the brush bristles are constantly in contact with the ground, which increases the wear and tear on the bristles, shortens their lifespan and replacement cycle, increases the user's operating costs, and reduces the user experience. Summary of the Invention

[0004] The purpose of this invention is to provide a side brush mechanism and a sweeping robot to avoid wear and tear on the side brush when the sweeping robot is in standby mode, extend the service life and replacement cycle of the side brush, reduce usage costs, and improve user experience.

[0005] To achieve this objective, the technical solution adopted by the present invention is as follows: A side brush mechanism includes a housing, a drive assembly, a one-way damping bearing, and a side brush assembly, wherein the drive assembly and the one-way damping bearing are mounted within the housing; the side brush assembly includes: A side brush housing, wherein the side brush housing is rotatably mounted on the housing via the one-way damping bearing, so that the housing can rotate relative to the housing in a first direction; A sleeve, the sleeve including a cylindrical body and a lever, the cylindrical body being coaxially and movably installed in the side brush housing, the cylindrical body having two levers spaced apart circumferentially, and the drive assembly being pulsatorically connected to the cylindrical body; The side brush includes a connected main brush body and a flipping component. The flipping component is rotatably mounted on the side brush housing and has a first position that lowers the main brush body to a cleaning position and a second position that raises the main brush body to a retracted position that is off the ground. The end of the flipping component away from the main brush body extends between the two levers. The drive assembly drives the sleeve to rotate in a first direction, one of the pry blocks pushes the flipping member to rotate to the first position and makes the flipping member press against the side brush shell, so that the side brush assembly rotates in the first direction; the drive assembly drives the sleeve to rotate in a second direction, another pry block pushes the flipping member to rotate in the opposite direction to the second position and makes the flipping member press against the side brush shell, and the one-way damping bearing locks the side brush assembly, with the first direction and the second direction being opposite.

[0006] As an optional solution for the side brush mechanism, the flipping component includes: A rotating shaft, one end of which is connected to the main brush body and rotatably mounted on the side brush housing; A flip plate is connected to the other end of the rotating shaft and located between the two levers, so that the flipping component can be rotated to the first position or rotated in the opposite direction to the second position.

[0007] As an optional solution for the side brush mechanism, the middle part of the flip plate is connected to the other end of the rotating shaft, and the flip plate has flanges extending on both opposite sides. The paddle block drives the flanges to rotate or rotate in the opposite direction by squeezing the corresponding flanges.

[0008] As an optional solution for the edge brush mechanism, each of the paddles is provided with a pressing slope facing the corresponding flange, and the pressing slope can slide and engage with the corresponding flange.

[0009] As an optional solution for the side brush mechanism, the drive assembly includes a drive component, a double gear, and an output gear. Both the double gear and the output gear are rotatably mounted inside the housing. The double gear includes a first gear and a second gear. The output end of the drive component meshes with the first gear for transmission, and the second gear meshes with the output gear for transmission. The gear shaft of the output gear is connected to the cylinder.

[0010] As an optional solution for the side brush mechanism, one of the output shaft of the output gear and the inner side wall of the cylinder is provided with a buckle, and the other is provided with a slot. The cylinder is sleeved on the output shaft of the output gear, and the buckle and the slot are engaged.

[0011] As an optional solution for the side brush mechanism, the side brush mechanism further includes a damping ring, which passes through the one-way damping bearing, and the outer circumferential surface of the damping ring mates with the inner ring of the one-way damping bearing, and the inner circumferential surface of the damping ring is connected to the side brush shell.

[0012] As an optional solution for the side brush mechanism, the side brush mechanism also includes a positioning sensor, which is signal-connected to the drive component. The positioning sensor is used to detect whether the side brush, which has been lowered to the cleaning position, has rotated to a preset position.

[0013] As an optional solution for the side brush mechanism, the sensor is a Hall sensor, which includes a Hall element and a magnetic element that cooperates with the Hall element. The Hall element is signal-connected to the drive element, and the magnetic element is mounted on the output gear.

[0014] Robotic vacuum cleaners, including the aforementioned side brush mechanism.

[0015] The beneficial effects of this invention are as follows: The side brush mechanism proposed in this invention involves a drive assembly that drives the sleeve to rotate in a first direction. One of the levers pushes the flipping component to rotate to a first position, at which point the main brush body is lowered to the cleaning position, and the flipping component presses against the side brush shell, causing the side brush assembly to rotate in the first direction to clean the floor or carpet waiting area through the main brush body. When the robot vacuum is in standby mode, the drive assembly drives the sleeve to rotate in a second direction, and another lever pushes the flipping component to rotate in the opposite direction to a second position. At this point, the main brush body is raised to a retracted position that is off the ground, the flipping component presses against the side brush shell, and a one-way damping bearing locks the side brush assembly, preventing wear on the side brush during standby mode, extending the service life and replacement cycle of the side brush, reducing usage costs, and improving user experience.

[0016] The sweeping robot proposed in this invention includes the aforementioned side brush mechanism. When the sweeping robot is in standby mode, the side brush is prevented from wearing out during standby movement, thus extending its service life and replacement cycle, reducing usage costs, and improving user experience. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the side brush mechanism provided in an embodiment of the present invention; Figure 2 This is a cross-sectional view of the side brush mechanism provided in an embodiment of the present invention; Figure 3 This is an exploded view of the side brush mechanism provided in an embodiment of the present invention after the side brush components have been removed; Figure 4 This is an exploded view of the structure of the side brush assembly provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the side brush structure provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the sleeve provided in an embodiment of the present invention.

[0018] The component names and labels in the diagram are as follows: 1. Housing; 2. One-way damping bearing; 3. Side brush assembly; 31. Side brush shell; 32. Sleeve; 321. Cylinder; 322. Pulley; 3220. Extrusion bevel; 33. Side brush; 331. Main brush body; 332. Flipping component; 3321. Rotating shaft; 3322. Flip plate; 3323. Flip edge; 4. Drive component; 5. Double gear; 51. First gear; 52. Second gear; 6. Output gear; 61. Snap-fit; 7. Damping ring. Detailed Implementation

[0019] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. Furthermore, it should be noted that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings, not all of them.

[0020] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0023] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] This embodiment proposes a robotic vacuum cleaner, which includes a main brush mechanism and a side brush mechanism. The main brush mechanism's roller brush picks up dust and debris from carpets or floors, and the airflow generated by an internal fan sucks the dust and debris into a dustbin. Since the roller brush's coverage area is limited, a side brush mechanism is needed. The bristles of the side brush mechanism gather dust into the area covered by the roller brush, increasing the cleaning coverage area. Because robotic vacuum cleaners are existing technology, the detailed composition and working principle can be found in existing robotic vacuum cleaners and will not be elaborated further here.

[0025] When a robot vacuum cleaner is in standby mode and moving, such as between the cleaning area (carpet, etc.) and the charging area, the brush bristles are constantly in contact with the ground, which increases the wear and tear on the bristles, shortens their lifespan and replacement cycle, increases the user's operating costs, and reduces the user experience.

[0026] To solve the above problems, such as Figures 1-4 As shown, this embodiment also proposes a side brush mechanism, which includes a housing 1, a drive assembly, a one-way damping bearing 2, and a side brush assembly 3. The drive assembly and the one-way damping bearing 2 are installed inside the housing 1. The side brush assembly 3 includes a side brush shell 31, a sleeve 32, and a side brush 33. The side brush shell 31 is rotatably mounted on the housing 1 via the one-way damping bearing 2, so that the housing 1 can rotate relative to the housing 1 in a first direction. The sleeve 32 includes a cylindrical body 321 and a lever 322. The cylindrical body 321 is coaxially and movably mounted inside the side brush shell 31. Two levers 322 are spaced apart circumferentially on the cylindrical body 321. The drive assembly is drively connected to the cylindrical body 321. The side brush 33 includes a connected main brush body 331 and a flipping member 332. The flipping member 332 is rotatably mounted on the side brush shell 31 and has a first position that lowers the main brush body 331 to a cleaning position and a second position that raises the main brush body 331 to a retracted position that is off the ground. The end of the flipper 332 away from the main brush body 331 extends between the two levers 322. The drive assembly drives the sleeve 32 to rotate in a first direction, and one of the levers 322 pushes the flipper 332 to rotate to a first position, causing the flipper 332 to press against the side brush shell 31, so that the side brush assembly 3 rotates in the first direction. The drive assembly drives the sleeve 32 to rotate in a second direction, and the other lever 322 pushes the flipper 332 to rotate in the opposite direction to a second position, causing the flipper 332 to press against the side brush shell 31. The one-way damping bearing 2 locks the side brush assembly 3. The first direction and the second direction are opposite. The first direction and the second direction are respectively a horizontal clockwise direction and a horizontal counterclockwise direction.

[0027] When the drive assembly drives the sleeve 32 to rotate in the first direction, one of the levers 322 pushes the flipping member 332 to rotate to the first position. At this time, the main brush body 331 is lowered to the cleaning position, and the flipping member 332 presses against the side brush shell 31, so that the side brush assembly 3 rotates in the first direction to clean the floor or carpet waiting area through the main brush body 331. When the robot vacuum is in standby mode, the drive assembly drives the sleeve 32 to rotate in the second direction, and another lever 322 pushes the flipping member 332 to rotate in the opposite direction to the second position. At this time, the main brush body 331 is raised to the retracted position that is off the ground, the flipping member 332 presses against the side brush shell 31, and the one-way damping bearing 2 locks the side brush assembly 3, so as to avoid wear of the side brush 33 when in standby mode, extend the service life and replacement cycle of the side brush 33, reduce the cost of use, and improve the user experience.

[0028] like Figure 2 and Figure 3 As shown, the drive assembly includes a drive component 4, a double gear 5, and an output gear 6. Both the double gear 5 and the output gear 6 are rotatably mounted within the housing 1. The double gear 5 includes a first gear 51 and a second gear 52. The output end of the drive component 4 meshes with the first gear 51 for transmission, and the second gear 52 meshes with the output gear 6 for transmission. The gear shaft of the output gear 6 is connected to the cylinder 321. The drive component 4 is a motor, which has high control precision, a simple structure, and a small size. The transmission cooperation between the double gear 5 and the output gear 6 improves the transmission precision and stability of the drive assembly. Furthermore, the installation structure of the double gear 5 and the output gear 6 is more compact, facilitating installation within the limited installation space of the housing 1.

[0029] It should be noted that when the motor rotates forward, the sleeve 32 is driven to rotate in the first direction via the double gear 5 and the output gear 6 to lower the main brush body 331 to the cleaning position. When the motor rotates in reverse, the sleeve 32 is driven to rotate in the second direction via the double gear 5 and the output gear 6 to raise the main brush body 331 to the retracted position above the ground. After the main brush body 331 is raised to the retracted position above the ground, the side brush assembly 3 is locked by the one-way damping bearing 2 to prevent the side brush assembly 3 from continuing to rotate in the second direction, which could easily cause the motor to reverse and stall. Therefore, the side brush mechanism in this embodiment also includes protective devices such as thermal relays or time relays to achieve overcurrent protection or time protection for the motor, avoiding the risk of excessive current burning out the coil when the motor stalls, and improving the safety of the drive assembly. Since thermal relays or time relays are existing technologies, the assembly and working principle of the protective devices in the side brush mechanism will not be described in detail.

[0030] Specifically, one of the output shaft of the output gear 6 and the inner wall of the cylinder 321 is provided with a buckle 61, and the other is provided with a slot. The cylinder 321 is sleeved on the output shaft of the output gear 6, and the buckle 61 and the slot are engaged. Through the engagement of the buckle 61 and the slot, the output gear 6 and the sleeve 32 are detachably connected, which not only realizes the reliable assembly of the drive component and the side brush component 3, but also improves the assembly efficiency and facilitates the disassembly and maintenance of the side brush component 3.

[0031] like Figure 3 and Figure 4 As shown, the side brush mechanism also includes a damping ring 7, which passes through the one-way damping bearing 2. The outer circumferential surface of the damping ring 7 mates with the inner ring of the one-way damping bearing 2, and the inner circumferential surface of the damping ring 7 is connected to the side brush shell 31. The side brush shell 31 is mounted on the one-way damping bearing 2 via the damping ring 7. The inner circumferential surface of the damping ring 7 is a regular hexagon, and part of the outer circumferential surface of the side brush shell 31 is also a regular hexagon. This ensures that when the side brush shell 31 is fitted onto the inner circumferential surface of the damping ring 7, the outer circumferential surface of the side brush shell 31 fits tightly against the inner circumferential surface of the damping ring 7. On the one hand, this interference fit ensures reliable assembly of the side brush shell 31 and the damping ring 7; on the other hand, the one-to-one correspondence of the six hexagonal sides in the assembly method limits the circumferential movement of the side brush shell 31 relative to the damping ring 7, preventing circumferential rotation of the side brush shell 31 relative to the damping ring 7, thus ensuring the synchronous circumferential rotation of the side brush 33 and the damping ring 7. Of course, the inner circumferential surface of the damping ring 7 and part of the outer circumferential surface of the side brush shell 31 can also be set as other polygonal side structures, which will not be listed here.

[0032] In this embodiment, the side brush mechanism also includes a positioning sensor, which is signal-connected to the drive unit 4. The positioning sensor is used to detect whether the side brush 33, which has been lowered to the cleaning position, has rotated to a preset position. In this embodiment, the preset position is that the side brush 33 stops within the coverage area of ​​the entire robot vacuum cleaner, that is, when the side brush 33 stops rotating in the first direction, it is completely located below the entire robot vacuum cleaner, preventing the main brush body 331 from extending outside the entire robot vacuum cleaner. This ensures that the side brush 33 will not collide with objects in the surrounding environment when the robot vacuum cleaner is in standby mode, thus improving the safety of the robot vacuum cleaner when it is in standby mode.

[0033] Specifically, the sensor in this embodiment is a Hall sensor, which includes a Hall element and a magnetic component that cooperates with the Hall element. The Hall element is signal-connected to the drive component 4, and the magnetic component is mounted on the output gear 6. The Hall element and the magnetic component have a non-contact cooperation. The Hall element senses and outputs a corresponding electrical signal by sensing the change in the magnetic field generated by the magnetic component as the output gear 6 rotates, thereby realizing the position detection of the side brush 33. The Hall sensor has a simple structure, is easy to assemble, provides stable and reliable detection, has a long service life, and can effectively adapt to the complex working environment of the sweeping robot, improving the overall reliability of the machine's operation.

[0034] like Figure 4 and Figure 5 As shown, the flipping component 332 includes a rotating shaft 3321 and a flip plate 3322. One end of the rotating shaft 3321 is connected to the main brush body 331 and rotatably mounted on the side brush housing 31. The flip plate 3322 is connected to the other end of the rotating shaft 3321 and is located between two levers 322, so that the flipping component 332 rotates to a first position or rotates in the opposite direction to a second position. The side brush housing 31 has a mounting hole, and the rotating shaft 3321 is rotatably mounted in the mounting hole. The main brush body 331 includes a curved arm plate and bristles. One end of the arm plate is inserted and assembled with the end of the rotating shaft 3321 away from the flip plate 3322, and the other end of the arm plate is fitted with bristles. When one of the levers 322 rotates along the sleeve 32 in the first direction, it pushes the flap 3322 to rotate around the axis of the shaft 3321, causing the shaft 3321 and the main brush body 331 to rotate synchronously, thereby lowering the main brush body 331 to the cleaning position so that the bristles of the main brush body 331 contact the ground or carpet. When the other lever 322 rotates along the sleeve 32 in the second direction, it pushes the flap 3322 to rotate in the opposite direction around the axis of the shaft 3321, causing the shaft 3321 and the main brush body 331 to rotate synchronously, thereby raising the main brush body 331 to a retracted position that is off the ground, i.e., the bristles of the main brush body 331 are off the ground or carpet, and the side brush 33 is located below the whole machine.

[0035] Furthermore, the middle part of the flap 3322 is connected to the other end of the rotating shaft 3321. Flanges 3323 extend from opposite sides of the flap 3322. The lever 322 drives the corresponding flanges 3323 to rotate or reverse by pressing them. This configuration makes the flap 3322 approximately U-shaped, allowing it to rotate forward and backward around its center. The force is evenly and symmetrically distributed, resulting in smooth movement, low inertia, and precise positioning during the flipping process, which improves the stability and control accuracy of the entire machine. Simultaneously, this U-shaped structure occupies little space, is easy to assemble, and can be adapted to compact installation environments, meeting the design requirements for miniaturization and lightweighting of the equipment.

[0036] like Figure 4 and Figure 6 As shown, each lever block 322 is provided with a pressing inclined surface 3220 facing the corresponding flange 3323. The pressing inclined surface 3220 can slide and engage with the corresponding flange 3323. The lever block 322 pushes the corresponding flange 3323 to rotate through the pressing inclined surface 3220, so that the flange 3323 can slide along the pressing inclined surface 3220 while rotating with the flip plate 3322. This improves the stability and reliability of the rotation of the flipping member 332 between the first position and the second position, and avoids the flipping member 332 from getting stuck.

[0037] For ease of understanding, the working process of the side brush mechanism in this embodiment is as follows: When cleaning carpets or floors is required, the motor of the drive assembly drives the sleeve 32 to rotate in the first direction via the double gear 5 and the output gear 6, while the side brush housing 31 remains stationary. The pressing inclined surface 3220 of one of the levers 322 of the sleeve 32 contacts and pushes the corresponding flange 3323 of the flipper 332 to rotate axially around the shaft 3321, causing the flipper 332 to rotate to the first position, thereby lowering the main brush body 331 to the cleaning position, where the bristles of the main brush body 331 contact the carpet or floor. As the sleeve 32 continues to rotate in the first direction, one of the levers 322, the flipper 332, and the side brush housing 31 sequentially press against each other, causing the entire side brush assembly 3 to rotate synchronously in the first direction, thereby cleaning the carpet or floor with the side brush 33.

[0038] When the robot vacuum needs to move to the charging location, the positioning sensor detects whether the side brush 33 has rotated to the preset position. Once the side brush 33 has rotated to the preset position, meaning it is completely under the robot vacuum, the motor is shut off. Then, the motor is reversed to drive the sleeve 32 to rotate in the second direction. Another lever 322 pushes the flipping component 332 to rotate in the opposite direction to the second position. At this point, the main brush body 331 rises to the retracted position, detached from the ground, and the flipping component 332 presses against the side brush housing 31. Because the one-way damping bearing 2 locks the side brush housing 31 through the damping ring 7, the entire side brush assembly 3 is locked, preventing rotation. At this time, the motor is prone to stalling; overcurrent or time protection is implemented through thermal relays or time relays. Finally, the robot vacuum moves to the charging location to charge. During standby movement, the side brush 33 remains detached from the ground, preventing wear during movement, extending the lifespan and replacement cycle of the side brush 33, reducing operating costs, and improving user experience.

[0039] The above embodiments merely illustrate the basic principles and characteristics of the present invention. The present invention is not limited to the above embodiments. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A side brush mechanism, characterized in that, The assembly includes a housing (1), a drive assembly, a one-way damping bearing (2), and a side brush assembly (3), wherein the drive assembly and the one-way damping bearing (2) are mounted inside the housing (1); the side brush assembly (3) includes: Side brush housing (31), the side brush housing (31) is rotatably mounted on the housing (1) via the one-way damping bearing (2) so that the housing (1) can rotate relative to the housing (1) in a first direction; Sleeve (32), the sleeve (32) includes a cylinder body (321) and a lever (322), the cylinder body (321) is coaxial and movably installed in the side brush shell (31), the cylinder body (321) is circumferentially spaced with two levers (322), and the drive assembly is connected to the cylinder body (321) in a transmission connection; Side brush (33), the side brush (33) includes a connected main brush body (331) and a flipping member (332), the flipping member (332) is rotatably mounted on the side brush shell (31), and has a first position that drives the main brush body (331) to a cleaning position and a second position that drives the main brush body (331) to a retracted position that is off the ground; one end of the flipping member (332) away from the main brush body (331) extends between the two pry bars (322); The drive assembly drives the sleeve (32) to rotate in a first direction, one of the paddles (322) pushes the flipper (332) to rotate to the first position and makes the flipper (332) press against the side brush shell (31) so that the side brush assembly (3) rotates in the first direction; the drive assembly drives the sleeve (32) to rotate in a second direction, another paddle (322) pushes the flipper (332) to rotate in the opposite direction to the second position and makes the flipper (332) press against the side brush shell (31); the one-way damping bearing (2) locks the side brush assembly (3), and the first direction is opposite to the second direction.

2. The side brush mechanism according to claim 1, characterized in that, The flipper (332) includes: A rotating shaft (3321) is connected at one end to the main brush body (331) and is rotatably mounted on the side brush shell (31). A flip plate (3322) is connected to the other end of the rotating shaft (3321) and located between the two levers (322) to rotate the flipping member (332) to the first position or to rotate in the opposite direction to the second position.

3. The side brush mechanism according to claim 2, characterized in that, The middle part of the flap (3322) is connected to the other end of the rotating shaft (3321). The flap (3322) has flanges (3323) extending on both sides opposite to each other. The paddle (322) drives the flanges (3323) to rotate or rotate in the opposite direction by squeezing the corresponding flanges (3323).

4. The side brush mechanism according to claim 3, characterized in that, Each of the push blocks (322) is provided with a pressing slope (3220) facing the corresponding flange (3323), and the pressing slope (3220) can slide and engage with the corresponding flange (3323).

5. The side brush mechanism according to any one of claims 1-4, characterized in that, The drive assembly includes a drive member (4), a double gear (5), and an output gear (6). The double gear (5) and the output gear (6) are rotatably mounted in the housing (1). The double gear (5) includes a first gear (51) and a second gear (52). The output end of the drive member (4) meshes with the first gear (51) for transmission, and the second gear (52) meshes with the output gear (6) for transmission. The gear shaft of the output gear (6) is connected to the cylinder (321).

6. The side brush mechanism according to claim 5, characterized in that, One of the output shaft of the output gear (6) and the inner wall of the cylinder (321) is provided with a buckle (61), and the other is provided with a slot. The cylinder (321) is sleeved on the output shaft of the output gear (6), and the buckle (61) engages with the slot.

7. The side brush mechanism according to claim 5, characterized in that, The side brush mechanism also includes a damping ring (7), which is inserted into the one-way damping bearing (2), and the outer circumferential surface of the damping ring (7) is engaged with the inner ring of the one-way damping bearing (2), and the inner circumferential surface of the damping ring (7) is connected to the side brush shell (31).

8. The side brush mechanism according to claim 5, characterized in that, The side brush mechanism also includes a positioning sensor, which is signal-connected to the drive unit (4). The positioning sensor is used to detect whether the side brush (33) lowered to the cleaning position has rotated to a preset position.

9. The side brush mechanism according to claim 8, characterized in that, The sensor is a Hall sensor, which includes a Hall element and a magnetic component that cooperates with the Hall element. The Hall element is signal-connected to the drive component (4), and the magnetic component is mounted on the output gear (6).

10. A robotic vacuum cleaner, characterized in that, Includes the side brush mechanism as described in any one of claims 1-9.

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