Edge brush device and robotic vacuum cleaner

Abstract

This invention provides a side brush device and a sweeping robot. The side brush device includes: a main body; a side brush assembly rotatably connected to the main body, the side brush assembly including multiple brush bodies for cleaning the floor; a pull rope drive unit installed on the main body; and a pull rope unit installed on the side brush assembly, the pull rope unit including: a pull rope traction member, the pull rope traction member being movable between a first position and a second position, the pull rope drive unit contacting the pull rope traction member; and multiple pull ropes, one end of each pull rope being installed on the pull rope traction member, and the other end of each pull rope being connected to a corresponding brush body. The pull rope drive unit is capable of pushing the pull rope traction member from the first position to the second position, so that the pull rope traction member drives the pull rope to pull the brush body upwards.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and more specifically, to a side brush device and a sweeping robot. Background Technology

[0002] Robotic vacuum cleaners, including the side brushes used for sweeping, need to lift the side brushes when they pass through sewage. Current technology can only lift part of the side brush or increase the side brush speed to improve the cleaning ability of the side brush, but it cannot completely prevent the side brush from coming into contact with sewage. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] Therefore, the first objective of this invention is to provide a side brush device.

[0005] The second objective of this invention is to provide a sweeping robot.

[0006] To achieve at least one of the above objectives, according to a first aspect of the present invention, a side brush device is provided, comprising: a main body; a side brush assembly rotatably connected to the main body, the side brush assembly including a plurality of brush bodies for cleaning the ground; a pull rope drive unit mounted on the main body; and a pull rope unit mounted on the side brush assembly, the pull rope unit including: a pull rope traction member movable between a first position and a second position, the pull rope drive unit contacting the pull rope traction member; and a plurality of pull ropes, one end of each pull rope being mounted to the pull rope traction member, and the other end of each pull rope being connected to a corresponding brush body; wherein the pull rope drive unit is capable of pushing the pull rope traction member from the first position to the second position, so that the pull rope traction member drives the pull rope to pull the brush body up.

[0007] This application proposes a side brush device that can be used in a robotic vacuum cleaner. When the robotic vacuum cleaner is running, the side brush device can contact the ground and rotate to clean it. Understandably, in actual use, difficult-to-clean liquid stains often appear on the ground. If the side brush continuously cleans these stains, it will become dirty, and the stains will be carried to other locations by the side brush device as the robotic vacuum cleaner moves, expanding the area of ​​the stain. To avoid this problem, the side brush device needs to be able to rise and detach from the ground when encountering stains to avoid them. The side brush device proposed in this application includes a side brush assembly, which includes a brush body for cleaning the ground. The brush body can be raised or lowered to meet the need to avoid stains. The structure of the side brush device is described in detail below.

[0008] The side brush device proposed in this application includes a main body and a side brush assembly. The side brush assembly is rotatably connected to the main body and includes multiple brush bodies that can contact the ground. When the side brush assembly rotates, the multiple brush bodies rotate relative to the ground to clean the ground. The side brush device also includes a pull rope drive and a pull rope part, which are used to adjust the height of the brush bodies so that the brush bodies can rise to avoid stains when they encounter them, and lower to contact the ground after passing the stains, allowing the brush bodies to continue cleaning the ground. The pull rope drive is installed on the main body, and the pull rope part is installed on the side brush assembly. The pull rope part includes a pull rope traction member and multiple pull ropes. Each pull rope corresponds to a brush body and is connected to the corresponding brush body. The pull rope drive moves the pull rope traction member to pull the pull rope, thereby raising the corresponding brush body and separating the brush body from the ground.

[0009] Specifically, one end of the pull rope is installed inside the pull rope traction component, and the other end is connected to the corresponding brush body. The pull rope traction component can move between a first position and a second position. When the pull rope traction component moves, it pulls the pull rope, thereby raising or lowering the brush body. When the brush body encounters dirt, the pull rope drive unit pushes the pull rope traction component to the second position. At this time, the pull rope traction component drives the pull rope to pull the brush body up, so that the brush body is separated from the ground.

[0010] By incorporating a pull rope section and a pull rope drive section into the side brush device, and further integrating the pull rope section with a pull rope connected to the brush body and a pull rope traction member for extending the brush, the pull rope drive section can move the traction member, which in turn moves the pull rope to raise the brush body. This allows the brush body to avoid dirt on the ground, preventing it from becoming stained and spreading, thus improving the cleaning effectiveness of the side brush device.

[0011] The side brush device according to the present invention may also have the following distinguishing technical features:

[0012] In some technical solutions, the pull rope part may optionally include: a mounting base assembly fixedly connected to the side brush assembly, the mounting base assembly having a mounting groove, the pull rope traction member being located in the mounting groove; and an elastic member installed between the pull rope traction member and the bottom wall of the mounting groove, wherein when the pull rope drive part pushes the pull rope traction member from the first position to the second position, the elastic member is compressed, and the elastic member is used to push the pull rope traction member to the first position.

[0013] In this technical solution, the structure of the pull rope part is defined. The pull rope part includes a mounting base assembly and an elastic element. The mounting base assembly is used to mount the pull rope traction component, and the elastic element is used to enable the pull rope traction component to automatically reset, that is, the elastic element can move the pull rope traction component from a second position back to a first position. Specifically, the mounting base assembly is fixedly connected to the side brush assembly. The mounting base assembly has a mounting groove, and the pull rope traction component is installed in the mounting groove to achieve the installation and positioning of the pull rope traction component. The elastic element is disposed between the pull rope traction component and the bottom wall of the mounting groove. The elastic element can support the pull rope traction component. When the pull rope traction component is pushed by the pull rope drive unit in a direction toward the bottom wall of the mounting groove, the elastic element is compressed by the pull rope traction component. The elastic element generates a thrust on the pull rope traction component away from the bottom wall of the mounting groove, which can cause the pull rope traction component to automatically reset.

[0014] Specifically, when the brush body needs to be raised, the pull rope drive unit pushes the pull rope traction member from the first position to the second position. During this movement, the pull rope traction member moves towards the bottom wall of the mounting groove, compressing the elastic element and generating a force on the pull rope traction member away from the bottom wall of the mounting groove. When the pull rope traction member reaches the second position, the pull rope is pulled, raising the brush body off the ground. When the brush body needs to be lowered to contact the ground, the pull rope drive unit stops pushing the pull rope traction member, and the elastic element applies a force away from the bottom wall of the mounting groove, moving the pull rope traction member from the second position to the first position, allowing it to automatically reset. When the pull rope traction member reaches the first position, the brush body's height decreases and it contacts the ground, enabling the side brush device to function normally.

[0015] By incorporating an elastic element in the pull rope section, a thrust can be applied to the pull rope, allowing the pull rope traction component to automatically return to the first position through the push of the elastic element, thereby lowering the brush body and enabling the side brush device to operate normally.

[0016] In some technical solutions, optionally, the pull rope drive unit includes: a pull rope drive motor mounted on the main body; a cam rotatably connected to the pull rope drive motor, the pull rope drive motor driving the cam to rotate, the edge of the cam having a protrusion, the distance between the protrusion and the rotation axis of the cam being greater than the distance between any point on the edge of the cam and the rotation axis of the cam; and a push rod movably mounted on the main body, the two ends of the push rod contacting the edge of the cam and the pull rope traction member respectively, the cam being able to push the push rod to move, so that the push rod pushes the pull rope traction member to move; wherein, when the protrusion rotates to the position of contacting the push rod, the push rod pushes the pull rope traction member to a second position, and when the protrusion rotates to the position away from the push rod, the elastic member pushes the pull rope traction member to a first position.

[0017] In this technical solution, the structure of the rope drive unit is defined. The rope drive unit includes a rope drive motor, a cam, and a push rod. The rope drive motor can drive the cam to rotate, the cam contacts the push rod, and the push rod contacts the rope traction component. Since the cam is eccentrically connected to the rope drive motor, when the cam rotates to different positions, the cam can push the push rod to different positions, and then push the rope traction component to different positions through the push rod, thereby realizing the driving of the rope drive unit on the rope traction component.

[0018] Specifically, a pull-cord drive motor is mounted on the main body, and a cam is rotatably connected to the pull-cord drive motor, which drives the cam to rotate. The cam has a protrusion on its edge, and the distance between the protrusion and the cam's rotation axis is greater than the distance between any point on the cam's edge and the cam's rotation axis. A push rod is movably mounted on the main body, with one end contacting the edge of the cam and the other end contacting the pull-cord traction component. The pull-cord drive motor can drive the push rod to move via the cam. When the cam's protrusion rotates to the push rod and contacts it, the cam pushes the pull-cord traction component to the second position via the push rod, causing the pull-cord traction component to pull the pull-cord and raise the brush body. When the cam's protrusion rotates away from the push rod, an elastic element pushes the pull-cord traction component to move towards the first position, and the pull-cord traction component simultaneously pushes the push rod away from the bottom wall of the mounting groove. Until the cam's protrusion rotates away from the push rod, the elastic element pushes the pull-cord traction component to the first position, lowering the brush body and bringing it into contact with the ground.

[0019] By incorporating a pull rope drive motor, a cam, and a push rod in the pull rope drive unit, the structure allows the cam to push the push rod to move based on the different distances between the edge of the cam and the rotation axis of the cam. This, in turn, allows the push rod to push the pull rope traction component to move, thereby achieving the pulling of the brush body by the pull rope. This transmission structure has high transmission efficiency and is easy to install.

[0020] In some technical solutions, the main body may optionally include: a housing assembly; a side brush drive unit mounted on the housing assembly; and a transmission assembly in contact with the side brush drive unit. The transmission assembly is connected to the mounting base assembly, and the side brush drive unit can drive the mounting base assembly to rotate through the transmission assembly, thereby driving the side brush assembly to rotate.

[0021] In this technical solution, the structure of the main body is defined. The main body includes a housing assembly, a side brush drive unit, and a transmission assembly. The side brush drive unit is used to drive the side brush assembly to rotate, the transmission assembly is used to transmit the power of the side brush drive unit to the side brush assembly, and the housing assembly is used to mount the side brush drive unit and the transmission assembly.

[0022] Specifically, the side brush drive unit is mounted on the housing assembly, and the transmission assembly contacts the side brush drive unit, enabling the side brush drive unit to transmit power to the transmission assembly. The transmission assembly is connected to the mounting base assembly, and it transmits the power from the side brush drive unit to the mounting base assembly, causing the mounting base assembly to rotate. Since the mounting base assembly is fixedly connected to the side brush assembly, when the transmission assembly drives the mounting base assembly to rotate, the mounting base assembly drives the side brush assembly to rotate, enabling the side brush assembly to clean the floor.

[0023] By incorporating a side brush drive unit and a transmission assembly in the main body, power can be transmitted to the mounting base assembly via the transmission assembly. The mounting base assembly then drives the side brush assembly to rotate, enabling the side brush assembly to clean the ground, thus achieving the driving function of the side brush assembly.

[0024] In some technical solutions, optionally, the side brush drive unit includes: a side brush drive motor mounted on the main body; a first transmission member connected to the side brush drive motor; the transmission assembly includes: a second transmission member in contact with the first transmission member, the first transmission member being used to drive the second transmission member to rotate; a third transmission member in contact with the second transmission member, the second transmission member being used to drive the third transmission member to rotate, and the third transmission member being connected to the mounting base assembly.

[0025] In this technical solution, the structure of the side brush drive unit and the transmission assembly is defined. The side brush drive unit includes a side brush drive motor and a first transmission component. The transmission assembly includes a second transmission component and a third transmission component. The side brush drive motor can transmit torque to the mounting base assembly through the first transmission component, the second transmission component, and the third transmission component, so that the mounting base assembly can rotate, and then drive the side brush assembly to rotate through the mounting base assembly.

[0026] Specifically, the side brush drive motor is mounted on the main body. A first transmission component is connected to the side brush drive motor, enabling the side brush drive motor to drive the first transmission component to rotate. A second transmission component is in contact with the first transmission component, enabling the first transmission component to drive the second transmission component to rotate. A third transmission component is in contact with the second transmission component, enabling the second transmission component to drive the third transmission component to rotate. In this way, the torque of the side brush drive motor can be transmitted, allowing the side brush drive motor to drive the mounting base assembly to rotate, which in turn drives the side brush assembly to rotate.

[0027] By setting a side brush drive motor and a first transmission component in the side brush drive unit, and setting a second transmission component adapted to the first transmission component and a third transmission component adapted to the second transmission component in the transmission assembly, torque can be transmitted to the mounting base assembly through the first transmission component, the second transmission component and the third transmission component, so that the mounting base assembly can rotate, and then drive the side brush assembly to rotate through the mounting base assembly, thereby realizing power transmission.

[0028] In some technical solutions, optionally, the third transmission component includes: a transmission gear that contacts the second transmission component; a transmission shaft with one end connected to the transmission gear and the other end connected to the mounting base assembly, the transmission shaft and the mounting base assembly forming a mounting cavity, and the pull rope traction component and the elastic component located within the mounting cavity.

[0029] In this technical solution, the structure of the third transmission component is defined. The third transmission component includes a transmission gear and a transmission shaft. The transmission gear contacts the second transmission component, which drives the transmission gear to rotate. The transmission shaft is connected to the transmission gear, and the transmission gear drives the transmission shaft to rotate. The end of the transmission shaft facing away from the transmission gear is connected to the mounting base assembly, so that the transmission shaft can drive the mounting base assembly to rotate. Since the mounting base assembly is fixedly connected to the side brush assembly, the transmission shaft can drive the side brush assembly to rotate through the mounting base assembly.

[0030] Furthermore, the drive shaft and mounting base assembly together form a mounting cavity, within which the cable traction component and elastic element are located. This design not only allows for the installation of the cable traction component and elastic element but also enables a more compact product structure, avoiding the additional installation space occupied by these components and facilitating miniaturization. Additionally, the hollow structure of the drive shaft reduces its weight.

[0031] In some technical solutions, the first transmission component and the second transmission component may optionally be gears.

[0032] In this technical solution, the first and second transmission components are defined. Specifically, the first and second transmission components are gears. Specifically, a pull-cord drive motor can drive the first transmission component to rotate, and the first transmission component meshes with the second transmission component to drive the second transmission component to rotate. The second transmission component meshes with a transmission gear in the third transmission component to drive the third transmission component to rotate. Simultaneously with the rotation of the transmission gear, the transmission gear drives a transmission shaft connected to it to rotate. The other end of the transmission gear is connected to a mounting base assembly, which is fixedly connected to the side brush assembly. Thus, the transmission shaft can drive the side brush assembly to rotate via the mounting base assembly, thereby achieving the driving of the side brush assembly.

[0033] In one possible technical solution, the diameter of the first transmission component is smaller than the diameter of the second transmission component and the transmission gear, thereby enabling the first, second, and third transmission components to reduce the speed of the side brush assembly, making the rotational speed of the side brush assembly lower than the rotational speed of the side brush drive motor, thus enabling the side brush assembly to operate stably and reducing the noise generated by the side brush assembly during rotation.

[0034] In some technical solutions, the mounting base assembly optionally includes: a claw, to which the drive shaft is engaged; an inner housing, fixedly connected to the side brush assembly, a mounting groove provided in the inner housing, the claw being installed in the mounting groove, the claw being fixedly connected to the inner housing, or the claw and the inner housing being integrally formed.

[0035] In this technical solution, the structure of the mounting base assembly is defined. The mounting base assembly includes a jaw and an inner housing, wherein a drive shaft is adapted to the jaw and can be engaged with the jaw to connect the mounting base assembly to the drive shaft. The jaw and the drive shaft define a mounting cavity, within which the pull rope traction component and the elastic component are mounted. Because the drive shaft is engaged with the jaw, the user can separate the drive shaft from the jaw for easy maintenance of the pull rope traction component and the elastic component.

[0036] Furthermore, a mounting slot is provided in the inner housing, and the claw is installed in the mounting slot. The claw can drive the inner housing to rotate, and the inner housing is fixedly connected to the side brush assembly, thereby enabling the mounting base assembly to drive the side brush assembly to rotate. Specifically, the inner housing and the claw can be fixedly connected by means of bonding or screw connection, or the claw and the inner housing can be designed as an integrally formed structure.

[0037] By setting a pawl connected to the drive shaft and an inner housing connected to the side brush assembly in the mounting base assembly, and setting the pawl and the inner housing as a fixed connection or integrally formed structure, the pawl can be driven to rotate through the drive shaft, and then the inner housing can be driven to rotate through the pawl, and then the side brush assembly can be driven to rotate through the inner housing, thus realizing the transmission of power.

[0038] In some technical solutions, the side brush device may optionally include: multiple wire holes located in the inner housing, the wire holes being used to pass through the pull cord.

[0039] In this technical solution, the structure of the inner housing is defined. The inner housing is provided with multiple wire passage holes, through which the pull rope can pass and connect to the brush body, thereby avoiding interference between the pull rope and the inner housing and allowing the pull rope to pull the brush body up normally.

[0040] In some technical solutions, optionally, the housing assembly includes: an upper housing; a lower housing connected to the upper housing, the upper housing and the lower housing together forming a receiving cavity, and a first transmission member, a second transmission member and a transmission gear located within the receiving cavity.

[0041] In this technical solution, the structure of the housing assembly is defined. The housing assembly includes an upper housing and a lower housing, wherein the lower housing is connected to the upper housing, and the upper and lower housings together form a receiving cavity, within which the first transmission component, the second transmission component, and the transmission gear are all installed. Thus, the upper and lower housings protect the first transmission component, the second transmission component, and the transmission gear, preventing damage from external impurities or liquids, thereby extending the service life of the transmission assembly. Furthermore, since the first transmission component, the second transmission component, and the transmission gear generate some noise during the meshing process, placing them within the receiving cavity provides a degree of sound insulation through the upper and lower housings, improving the user experience.

[0042] In one possible technical solution, the upper housing and the lower housing are connected by screws.

[0043] In some technical solutions, the side brush assembly may optionally include: a housing, multiple brushes connected sequentially to the periphery of the housing, and a mounting bracket assembly installed inside the housing.

[0044] In this technical solution, the structure of the side brush assembly is further defined. The side brush assembly also includes a housing, which is used to mount the brush bodies and the mounting base assembly. Specifically, multiple brush bodies are sequentially connected to the periphery of the housing, a pull cord extends from the housing and is connected to the corresponding brush body, and the mounting base assembly is mounted inside the housing. The mounting base assembly can drive the housing to rotate, thereby driving the brush bodies to rotate through the housing. In this way, the brush bodies and the mounting base assembly can be installed and fixed.

[0045] A second aspect of the present invention also provides a sweeping robot including the side brush device proposed in the first aspect of the present invention.

[0046] The sweeping robot provided in the second aspect of the present invention, having the side brush device proposed in the first aspect of the present invention, has all the beneficial effects of the side brush device.

[0047] Additional aspects and advantages of the invention will become apparent in the following description or may be learned by practice of the invention. Attached Figure Description

[0048] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0049] Figure 1 A schematic diagram of the side brush device according to an embodiment of the present invention is shown;

[0050] Figure 2 An exploded view of a side brush device according to an embodiment of the present invention is shown;

[0051] Figure 3 A schematic diagram of the structure of the third transmission component according to an embodiment of the present invention is shown;

[0052] Figure 4 A schematic diagram of the inner housing according to an embodiment of the present invention is shown;

[0053] Figure 5 A schematic diagram of the structure of a rope traction component according to an embodiment of the present invention is shown.

[0054] in, Figures 1 to 5 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0055] 100 Side brush device, 110 Main body, 120 Side brush assembly, 121 Brush body, 122 Outer shell, 123 Connector, 124 Brush bristles, 130 Pull cord drive unit, 131 Pull cord drive motor, 132 Cam, 133 Push rod, 134 Protrusion, 140 Pull cord unit, 141 Pull cord, 142 Elastic element, 150 Pull cord traction element, 151 Hub upper cover, 152 Hub lower cover, 160 Mounting base assembly, 161 Mounting groove, 162 Claw, 163 Inner shell, 164 Cable passage hole, 170 Shell assembly, 171 Upper shell, 172 Lower shell, 180 Side brush drive unit, 181 Side brush drive motor, 182 First transmission component, 190 Transmission assembly, 191 Second transmission component, 192 Third transmission component, 193 Transmission gear, 194 Transmission shaft, 195 Mounting cavity. Detailed Implementation

[0056] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0057] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0058] The following reference Figures 1 to 5 The invention describes a side brush device 100 and a sweeping robot according to some embodiments thereof.

[0059] In one embodiment according to this application, such as Figure 1 and Figure 2As shown, the present invention proposes a side brush device 100, comprising: a main body 110; a side brush assembly 120 rotatably connected to the main body 110, the side brush assembly 120 including a plurality of brush bodies 121 for cleaning the ground; a pull rope drive unit 130 installed on the main body 110; and a pull rope unit 140 installed on the side brush assembly 120, the pull rope unit 140 including: a pull rope traction member 150 movable between a first position and a second position, the pull rope drive unit 130 in contact with the pull rope traction member 150; and a plurality of pull ropes 141, one end of any pull rope 141 being installed on the pull rope traction member 150, and the other end of any pull rope 141 being connected to a corresponding brush body 121; wherein the pull rope drive unit 130 can push the pull rope traction member 150 from the first position to the second position, so that the pull rope traction member 150 drives the pull rope 141 to pull the brush body 121 up.

[0060] This application proposes a side brush device 100, which can be used in a robotic vacuum cleaner. When the robotic vacuum cleaner is running, the side brush device 100 can contact the ground and rotate to clean it. Understandably, in actual use, difficult-to-clean liquid stains often appear on the ground. If the side brush continuously cleans these stains, the side brush device 100 will become dirty, and as the robotic vacuum cleaner moves, the stains will be carried to other locations by the side brush device 100, expanding the area of ​​the stain. To avoid the above problem, the side brush device 100 needs to be able to rise and separate from the ground when encountering stains to avoid them. The side brush device 100 proposed in this application includes a side brush assembly 120, which includes a brush body 121 for cleaning the ground. The brush body 121 can be raised or lowered to meet the need to avoid stains. The structure of the side brush device 100 is described in detail below.

[0061] The side brush device 100 proposed in this application includes a main body 110 and a side brush assembly 120. The side brush assembly 120 is rotatably connected to the main body 110 and includes a plurality of brush bodies 121. The brush bodies 121 are capable of contacting the ground. When the side brush assembly 120 rotates, the plurality of brush bodies 121 rotate relative to the ground to clean the ground. The side brush device 100 also includes a pull rope drive unit 130 and a pull rope unit 140, which are used to adjust the height of the brush bodies 121 so that the brush bodies 121 can rise to avoid stains when they encounter stains, and lower to contact the ground after passing the stains, so that the brush bodies 121 can continue to clean the ground. The pull rope drive unit 130 is installed on the main body 110, and the pull rope unit 140 is installed on the side brush assembly 120. The pull rope unit 140 includes a pull rope traction member 150 and a plurality of pull ropes 141. The pull ropes 141 are arranged one-to-one with the brush bodies 121 and are connected to the corresponding brush bodies 121. The pull rope drive unit 130 pulls the pull ropes 141 by pushing the pull rope traction member 150 to move, thereby enabling the pull ropes 141 to pull up the corresponding brush bodies 121 and separate the brush bodies 121 from the ground.

[0062] Specifically, one end of the pull rope 141 is installed inside the pull rope traction member 150, and the other end is connected to the corresponding brush body 121. The pull rope traction member 150 can move between a first position and a second position. When the pull rope traction member 150 moves, it pulls the pull rope 141, thereby causing the brush body 121 to rise or fall. When the brush body 121 encounters dirt, the pull rope drive unit 130 pushes the pull rope traction member 150 to the second position. At this time, the pull rope traction member 150 drives the pull rope 141 to pull the brush body 121 up, so that the brush body 121 is separated from the ground.

[0063] In one possible embodiment, any brush body 121 includes a connector 123 and bristles 124. The bristles 124 are connected to one end of the connector 123 away from the main body 110 and are used for cleaning the floor. A pull cord 141 is connected to the connector 123. When the pull cord 141 pulls the brush body 121, the connector 123 bends and the connector 123 causes the bristles 124 to lift, thereby separating the bristles 124 from the floor.

[0064] By providing a pull rope section 140 and a pull rope drive section 130 in the side brush device 100, and by providing a pull rope 141 connected to the brush body 121 and a pull rope traction member 150 for pulling and stretching in the pull rope section 140, the pull rope drive section 130 can push the stretching traction member to move, and the pull rope traction member 150 can then drive the pull rope 141 to move, thereby raising the brush body 121. This allows the brush body 121 to avoid stains on the ground, prevents the brush body 121 from becoming stained, and prevents stains from spreading on the brush body 121, thus improving the cleaning effect of the side brush device 100.

[0065] In some embodiments, optionally, such as Figure 2 and Figure 4 As shown, the pull cord portion 140 further includes: a mounting base assembly 160, which is fixedly connected to the side brush assembly 120. The mounting base assembly 160 has a mounting groove 161, and the pull cord traction member 150 is located in the mounting groove 161; and an elastic member 142, which is installed between the pull cord traction member 150 and the bottom wall of the mounting groove 161. When the pull cord drive portion 130 pushes the pull cord traction member 150 from the first position to the second position, the elastic member 142 is compressed. The elastic member 142 is used to push the pull cord traction member 150 to the first position.

[0066] In this embodiment, the structure of the pull cord portion 140 is defined. The pull cord portion 140 includes a mounting base assembly 160 and an elastic member 142. The mounting base assembly 160 is used to mount the pull cord traction member 150, and the elastic member 142 is used to enable the pull cord traction member 150 to automatically reset, that is, the elastic member 142 can move the pull cord traction member 150 from the second position back to the first position. Specifically, the mounting base assembly 160 is fixedly connected to the side brush assembly 120. The mounting base assembly 160 has a mounting groove 161, in which the pull cord traction member 150 is installed to achieve the installation and positioning of the pull cord traction member 150. The elastic element 142 is disposed between the pull rope traction member 150 and the bottom wall of the mounting groove 161. The elastic element 142 can support the pull rope traction member 150. When the pull rope traction member 150 is pushed by the pull rope drive part 130 in the direction toward the bottom wall of the mounting groove 161, the elastic element 142 is compressed by the pull rope traction member 150. The elastic element 142 generates a thrust on the pull rope traction member 150 away from the bottom wall of the mounting groove 161, which can make the pull rope traction member 150 automatically reset.

[0067] Specifically, when it is necessary to lift the brush body 121, the pull rope drive unit 130 pushes the pull rope traction member 150 from the first position to the second position. During the process of the pull rope traction member 150 moving from the first position to the second position, the pull rope traction member 150 moves in the direction toward the bottom wall of the mounting groove 161, and the elastic member 142 is compressed. The elastic member 142 generates a force on the pull rope traction member 150 in the direction away from the bottom wall of the mounting groove 161. When the pull rope traction member 150 moves to the second position, the pull rope 141 is pulled by the pull rope traction member 150, and the pull rope 141 lifts the brush body 121, causing the brush body 121 to leave the ground. When it is necessary to lower the brush body 121 to contact the ground, the pull rope drive unit 130 no longer applies a pushing force to the pull rope traction member 150, and the elastic member 142 applies a pushing force to the pull rope traction member 150 in the direction away from the bottom wall of the mounting groove 161, causing the pull rope traction member 150 to move from the second position to the first position, so that the pull rope traction member 150 can automatically reset. When the pull rope traction member 150 moves to the first position, the height of the brush body 121 decreases and contacts the ground, so that the side brush device 100 can work normally.

[0068] In one possible embodiment, the elastic element 142 is a spring.

[0069] By providing an elastic element 142 in the pull rope section 140, the elastic element 142 can apply a thrust to the pull rope 141, so that the pull rope traction member 150 can automatically move back to the first position by the push of the elastic element 142, so that the brush body 121 is lowered and the side brush device 100 can work normally.

[0070] In some embodiments, optionally, such as Figure 1 , Figure 2 and Figure 3 As shown, the rope drive unit 130 includes: a rope drive motor 131, mounted on the main body 110; a cam 132, rotatably connected to the rope drive motor 131, the rope drive motor 131 driving the cam 132 to rotate, the edge of the cam 132 having a protrusion 134, the distance between the protrusion 134 and the rotation axis of the cam 132 being greater than the distance between any point on the edge of the cam 132 and the rotation axis of the cam 132; and a push rod 133, movably mounted on the main body 110. 10. The two ends of the push rod 133 are in contact with the edge of the cam 132 and the cable traction member 150, respectively. The cam 132 can push the push rod 133 to move so that the push rod 133 pushes the cable traction member 150 to move. When the protrusion 134 rotates to the position in contact with the push rod 133, the push rod 133 pushes the cable traction member 150 to the second position. When the protrusion 134 rotates to the position away from the push rod 133, the elastic member 142 pushes the cable traction member 150 to the first position.

[0071] In this embodiment, the structure of the pull rope drive unit 130 is defined. The pull rope drive unit 130 includes a pull rope drive motor 131, a cam 132, and a push rod 133. The pull rope drive motor 131 can drive the cam 132 to rotate. The cam 132 contacts the push rod 133, and the push rod 133 contacts the pull rope traction member 150. Since the cam 132 is eccentrically connected to the pull rope drive motor 131, when the cam 132 rotates to different positions, the cam 132 can push the push rod 133 to different positions, and then push the pull rope traction member 150 to different positions through the push rod 133, so as to realize the drive of the pull rope drive unit 130 on the pull rope traction member 150.

[0072] Specifically, a rope drive motor 131 is mounted on the main body 110, and a cam 132 is rotatably connected to the rope drive motor 131, enabling the rope drive motor 131 to drive the cam 132 to rotate. The edge of the cam 132 has a protrusion 134, and the distance between the protrusion 134 and the rotation axis of the cam 132 is greater than the distance between any point on the edge of the cam 132 and the rotation axis of the cam 132. A push rod 133 is movably mounted on the main body 110, with one end of the push rod 133 contacting the edge of the cam 132 and the other end contacting the rope traction member 150. The rope drive motor 131 can drive the push rod 133 to move via the cam 132. When the protrusion 134 of cam 132 rotates to the push rod 133 and contacts it, cam 132 pushes the cable traction member 150 to the second position via push rod 133. The cable traction member 150 pulls the cable 141 to raise the brush body 121. When the protrusion 134 of cam 132 rotates away from the push rod 133, elastic member 142 pushes the cable traction member 150 to move towards the first position. Simultaneously, the cable traction member 150 pushes the push rod 133 to move away from the bottom wall of mounting groove 161. Until the protrusion 134 of cam 132 rotates to the position away from the push rod 133, elastic member 142 pushes the cable traction member 150 to the first position, and the height of brush body 121 decreases and contacts the ground.

[0073] By providing a pull rope drive motor 131, a cam 132, and a push rod 133 in the pull rope drive unit 130, the structure with different distances between the edge of the cam 132 and the rotation axis of the cam 132 allows the cam 132 to push the push rod 133 to move, which in turn allows the push rod 133 to push the pull rope traction member 150 to move, thereby achieving the pulling of the pull rope 141 onto the brush body 121. This transmission structure has high transmission efficiency and is easy to install.

[0074] In some embodiments, optionally, such as Figure 2As shown, the main body 110 includes: a housing assembly 170; a side brush drive unit 180, which is mounted on the housing assembly 170; and a transmission assembly 190, which is in contact with the side brush drive unit 180. The transmission assembly 190 is connected to the mounting base assembly 160, and the side brush drive unit 180 can drive the mounting base assembly 160 to rotate through the transmission assembly 190, thereby driving the side brush assembly 120 to rotate.

[0075] In this embodiment, the structure of the main body 110 is defined. The main body 110 includes a housing assembly 170, a side brush drive unit 180, and a transmission assembly 190, wherein the side brush drive unit 180 is used to drive the side brush assembly 120 to rotate, the transmission assembly 190 is used to transmit the power of the side brush drive unit 180 to the side brush assembly 120, and the housing assembly 170 is used to mount the side brush drive unit 180 and the transmission assembly 190.

[0076] Specifically, the side brush drive unit 180 is mounted on the housing assembly 170, and the transmission assembly 190 contacts the side brush drive unit 180, enabling the side brush drive unit 180 to transmit power to the transmission assembly 190. The transmission assembly 190 is connected to the mounting base assembly 160, and the transmission assembly 190 transmits power from the side brush drive unit 180 to the mounting base assembly 160, thereby driving the mounting base assembly 160 to rotate. Since the mounting base assembly 160 is fixedly connected to the side brush assembly 120, when the transmission assembly 190 drives the mounting base assembly 160 to rotate, the mounting base assembly 160 drives the side brush assembly 120 to rotate, enabling the side brush assembly 120 to clean the floor.

[0077] By providing a side brush drive unit 180 and a transmission assembly 190 in the main body 110, power can be transmitted to the mounting base assembly 160 through the transmission assembly 190, and then the mounting base assembly 160 drives the side brush assembly 120 to rotate, so that the side brush assembly 120 can clean the ground, thereby achieving the driving of the side brush assembly 120.

[0078] In some embodiments, optionally, such as Figure 2 As shown, the side brush drive unit 180 includes: a side brush drive motor 181, mounted on the main body 110; a first transmission member 182, connected to the side brush drive motor 181; and a transmission assembly 190 including: a second transmission member 191, in contact with the first transmission member 182, the first transmission member 182 being used to drive the second transmission member 191 to rotate; and a third transmission member 192, in contact with the second transmission member 191, the second transmission member 191 being used to drive the third transmission member 192 to rotate, the third transmission member 192 being connected to the mounting base assembly 160.

[0079] In this embodiment, the structures of the side brush drive unit 180 and the transmission assembly 190 are defined. The side brush drive unit 180 includes a side brush drive motor 181 and a first transmission member 182, and the transmission assembly 190 includes a second transmission member 191 and a third transmission member 192. The side brush drive motor 181 can transmit torque to the mounting base assembly 160 through the first transmission member 182, the second transmission member 191 and the third transmission member 192, so that the mounting base assembly 160 can rotate, and then drive the side brush assembly 120 to rotate through the mounting base assembly 160.

[0080] Specifically, the side brush drive motor 181 is mounted on the main body 110. A first transmission member 182 is connected to the side brush drive motor 181, enabling the side brush drive motor 181 to drive the first transmission member 182 to rotate. A second transmission member 191 contacts the first transmission member 182, allowing the first transmission member 182 to drive the second transmission member 191 to rotate. A third transmission member 192 contacts the second transmission member 191, allowing the second transmission member 191 to drive the third transmission member 192 to rotate. This enables the transmission of torque from the side brush drive motor 181, allowing it to drive the mounting base assembly 160 to rotate, which in turn drives the side brush assembly 120 to rotate.

[0081] By providing a side brush drive motor 181 and a first transmission member 182 in the side brush drive unit 180, and providing a second transmission member 191 adapted to the first transmission member 182 and a third transmission member 192 adapted to the second transmission member 191 in the transmission assembly 190, torque can be transmitted to the mounting base assembly 160 through the first transmission member 182, the second transmission member 191 and the third transmission member 192, so that the mounting base assembly 160 can rotate, and then drive the side brush assembly 120 to rotate through the mounting base assembly 160, thereby realizing power transmission.

[0082] In some embodiments, optionally, such as Figure 2 and Figure 3 As shown, the third transmission component 192 includes: a transmission gear 193, which contacts the second transmission component 191; a transmission shaft 194, one end of which is connected to the transmission gear 193 and the other end of which is connected to the mounting base assembly 160. The transmission shaft 194 and the mounting base assembly 160 together form a mounting cavity 195, and the pull rope traction component 150 and the elastic component 142 are located in the mounting cavity 195.

[0083] In this embodiment, the structure of the third transmission member 192 is defined. The third transmission member 192 includes a transmission gear 193 and a transmission shaft 194. The transmission gear 193 is in contact with the second transmission member 191, and the second transmission member 191 can drive the transmission gear 193 to rotate. The transmission shaft 194 is connected to the transmission gear 193, and the transmission gear 193 can drive the transmission shaft 194 to rotate. One end of the transmission shaft 194 away from the transmission gear 193 is connected to the mounting base assembly 160, so that the transmission shaft 194 can drive the mounting base assembly 160 to rotate. Since the mounting base assembly 160 is fixedly connected to the side brush assembly 120, the transmission shaft 194 can drive the side brush assembly 120 to rotate through the mounting base assembly 160.

[0084] Furthermore, the drive shaft 194 and the mounting base assembly 160 together form a mounting cavity 195, within which the cable traction member 150 and the elastic member 142 are located. This allows for the installation of the cable traction member 150 and the elastic member 142 while also making the product structure more compact, avoiding the cable traction member 150 and the elastic member 142 occupying additional installation space, thus facilitating miniaturization design. Moreover, the hollow structure of the drive shaft 194 reduces its weight. The push rod 133 passes through the transmission gear 193, extends into the drive shaft 194, and contacts the cable traction member 150 to move it.

[0085] In some embodiments, the first transmission member 182 and the second transmission member 191 may optionally be gears.

[0086] In this embodiment, the first transmission member 182 and the second transmission member 191 are defined. Specifically, the first transmission member 182 and the second transmission member 191 are gears. Specifically, the pull rope drive motor 131 can drive the first transmission member 182 to rotate, and the first transmission member 182 meshes with the second transmission member 191 to drive the second transmission member 191 to rotate. The second transmission member 191 meshes with the transmission gear 193 in the third transmission member 192 to drive the third transmission member 192 to rotate. While the transmission gear 193 rotates, the transmission gear 193 drives the transmission shaft 194 connected to the transmission gear 193 to rotate. The other end of the transmission gear 193 is connected to the mounting base assembly 160, and the mounting base assembly 160 is fixedly connected to the side brush assembly 120. In this way, the transmission shaft 194 can drive the side brush assembly 120 to rotate through the mounting base assembly 160 to achieve the driving of the side brush assembly 120.

[0087] In one possible embodiment, the diameter of the first transmission member 182 is smaller than the diameter of the second transmission member 191 and the transmission gear 193, so that the first transmission member 182, the second transmission member 191 and the third transmission member 192 can play a deceleration role, so that the rotational speed of the side brush assembly 120 is less than the rotational speed of the side brush drive motor 181, so that the side brush assembly 120 can operate stably, and can also reduce the noise generated by the side brush assembly 120 during rotation.

[0088] In some embodiments, optionally, such as Figure 2 As shown, the mounting base assembly 160 includes: a claw 162, a drive shaft 194 being engaged with the claw 162; an inner housing 163, fixedly connected to the side brush assembly 120, a mounting groove 161 provided in the inner housing 163, the claw 162 being installed in the mounting groove 161, and the claw 162 being fixedly connected to the inner housing 163 or the claw 162 being integrally formed with the inner housing 163.

[0089] In this embodiment, the structure of the mounting bracket assembly 160 is defined. The mounting bracket assembly 160 includes a jaw 162 and an inner housing 163, wherein a drive shaft 194 is adapted to the jaw 162 and can engage with the jaw 162 to connect the mounting bracket assembly 160 to the drive shaft 194. The jaw 162 and the drive shaft 194 define a mounting cavity 195, in which the pull rope traction member 150 and the elastic member 142 are mounted. Because the drive shaft 194 is engaged with the jaw 162, the user can separate the drive shaft 194 from the jaw 162 for maintenance of the pull rope traction member 150 and the elastic member 142.

[0090] Furthermore, a mounting groove 161 is provided in the inner housing 163, and a claw 162 is installed in the mounting groove 161. The claw 162 can drive the inner housing 163 to rotate. The inner housing 163 is fixedly connected to the side brush assembly 120, thereby enabling the mounting base assembly 160 to drive the side brush assembly 120 to rotate. Specifically, the inner housing 163 and the claw 162 can be fixedly connected by means of bonding or screw connection, or the claw 162 and the inner housing 163 can be designed as an integrally formed structure.

[0091] By providing a pawl 162 connected to the drive shaft 194 and an inner housing 163 connected to the side brush assembly 120 in the mounting base assembly 160, and setting the pawl 162 and the inner housing 163 as a fixed connection or integrally formed structure, the drive shaft 194 can drive the pawl 162 to rotate, and then the pawl 162 drives the inner housing 163 to rotate, and then the inner housing 163 drives the side brush assembly 120 to rotate, thereby realizing the transmission of power.

[0092] In some embodiments, optionally, such as Figure 2As shown, the side brush device 100 also includes a plurality of wire holes 164 disposed in the inner housing 163, the wire holes 164 being used to pass through the pull rope 141.

[0093] In this embodiment, the structure of the inner housing 163 is defined. The inner housing 163 is provided with a plurality of wire holes 164, through which the pull rope 141 can pass and connect to the brush body 121, thereby avoiding interference between the pull rope 141 and the inner housing 163, and enabling the pull rope 141 to pull the brush body 121 up normally.

[0094] In some embodiments, optionally, such as Figure 2 As shown, the housing assembly 170 includes: an upper housing 171; and a lower housing 172 connected to the upper housing 171. The upper housing 171 and the lower housing 172 together form a receiving cavity, and the first transmission member 182, the second transmission member 191, and the transmission gear 193 are located within the receiving cavity.

[0095] In this embodiment, the structure of the housing assembly 170 is defined. The housing assembly 170 includes an upper housing 171 and a lower housing 172, wherein the lower housing 172 is connected to the upper housing 171, and the upper housing 171 and the lower housing 172 together form a receiving cavity, in which the first transmission member 182, the second transmission member 191, and the transmission gear 193 are all installed. In this way, the upper housing 171 and the lower housing 172 can protect the first transmission member 182, the second transmission member 191, and the transmission gear 193 from external impurities or liquids, thereby extending the service life of the transmission assembly 190. Furthermore, since the first transmission component 182, the second transmission component 191, and the transmission gear 193 will generate certain noise during the meshing transmission process, by setting the first transmission component 182, the second transmission component 191, and the transmission gear 193 in the receiving cavity, the upper housing 171 and the lower housing 172 can play a certain sound insulation role, thereby improving the user experience.

[0096] In one possible embodiment, the upper housing 171 and the lower housing 172 are connected by screws.

[0097] In some embodiments, optionally, such as Figure 2 As shown, the side brush assembly 120 also includes: a housing 122, a plurality of brush bodies 121 connected in sequence to the periphery of the housing 122, and a mounting base assembly 160 installed inside the housing 122.

[0098] In this embodiment, the structure of the side brush assembly 120 is further defined. The side brush assembly 120 also includes a housing 122, which is used to mount the brush body 121 and the mounting base assembly 160. Specifically, multiple brush bodies 121 are sequentially connected to the periphery of the housing 122, a pull cord 141 extends from the housing 122 and is connected to the corresponding brush body 121, and the mounting base assembly 160 is installed inside the housing 122. The mounting base assembly 160 can drive the housing 122 to rotate, thereby driving the brush body 121 to rotate through the housing 122. In this way, the brush body 121 and the mounting base assembly 160 can be installed and fixed.

[0099] A second aspect of the present invention also provides a sweeping robot, including the side brush device 100 proposed in the first aspect of the present invention.

[0100] The sweeping robot provided in the second aspect of the present invention has all the beneficial effects of the side brush device 100 proposed in the first aspect of the present invention because it includes the side brush device 100.

[0101] In one possible embodiment, such as Figure 1 As shown, the DC motor (i.e., the side brush drive motor 181) drives the side brush (i.e., the side brush assembly 120) through the gearbox (i.e., the transmission assembly 190) to complete the side brush rotation movement, thereby realizing the side brush cleaning the ground action.

[0102] like Figure 1 and Figure 2 As shown, the stepper motor (i.e., the pull rope drive motor 131) drives the cam 132 on it to move. The cam 132 causes the push rod 133 to press down. The push rod 133 pushes the hub (i.e., the pull rope traction component 150). The hub pulls the drive line (i.e., the pull rope 141) and presses down the spring (i.e., the elastic component 142). The drive line causes the side brush body (i.e., the connector 123) to bend. The side brush body causes the brush bristles 124 to be lifted, thereby realizing the side brush leaving the ground.

[0103] like Figure 3 As shown, push rod 133 passes through the hole in the gear housing (i.e., upper housing 171) and also through the secondary reduction gear (i.e., third transmission component 192). It moves upward by the power of the spring and moves downward by the pressure of the cam 132.

[0104] The bristles 124 are fixed to the side brush body 110 by adhesive or other means.

[0105] The claw 162 is first installed on the side brush head (i.e., the inner housing 163), and then the side brush head is fixed to the side brush body (i.e., the outer housing 122) by adhesive or other means; or the claw 162 and the side brush head are made into a part, and this part is fixed to the side brush body by adhesive or other means.

[0106] like Figure 5 As shown, the hub includes a hub upper cover 151 and a hub lower cover 152. The drive line is installed between the hub upper cover 151 and the hub lower cover 152 and is directly pressed by the upper and lower hubs; or the drive line is directly injection molded together as a part.

[0107] like Figure 3 As shown, the secondary reduction gear is fixed to the pawl 162 by a snap-fit ​​(i.e., drive shaft 194).

[0108] In this invention, the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0109] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0110] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A side brush device, characterized in that, include: main body; A side brush assembly is rotatably connected to the main body, the side brush assembly including a plurality of brush bodies for cleaning the floor; A pull-rope drive unit is installed on the main body; A pull cord portion, installed on the side brush assembly, the pull cord portion comprising: A rope traction component, which is movable between a first position and a second position, and a rope drive unit in contact with the rope traction component; Multiple pull ropes, one end of any pull rope is installed on the pull rope traction member, and the other end of any pull rope is connected to the corresponding brush body; The pull rope drive unit can push the pull rope traction member from the first position to the second position, so that the pull rope traction member drives the pull rope to pull the brush body up. The pull rope section also includes: A mounting base assembly is fixedly connected to the side brush assembly, and the mounting base assembly has a mounting groove; The subject includes: Side brush driver unit; A transmission assembly is in contact with the side brush drive unit. The transmission assembly is connected to the mounting base assembly. The side brush drive unit can drive the mounting base assembly to rotate through the transmission assembly, thereby driving the side brush assembly to rotate. The side brush drive unit includes: A side brush drive motor is mounted on the main body; The first transmission component is connected to the side brush drive motor; The transmission assembly includes: The second transmission component is in contact with the first transmission component, and the first transmission component is used to drive the second transmission component to rotate. A third transmission component is in contact with the second transmission component, the second transmission component is used to drive the third transmission component to rotate, and the third transmission component is connected to the mounting base assembly; The third transmission component includes: The transmission gear is in contact with the second transmission component; A drive shaft, one end of which is connected to the drive gear, and the other end of which is connected to the mounting base assembly; The mounting bracket assembly includes: The drive shaft is engaged with the chuck; The inner housing is fixedly connected to the side brush assembly. The mounting groove is provided in the inner housing, and the claw is installed in the mounting groove. The claw is fixedly connected to the inner housing or the claw is integrally formed with the inner housing. The pull rope traction component is located within the mounting groove; The pull rope section also includes: An elastic element is installed between the pull rope traction element and the bottom wall of the mounting groove; The drive shaft and the mounting base assembly together form a mounting cavity, and the pull rope traction member and the elastic member are located inside the mounting cavity.

2. The side brush device according to claim 1, characterized in that, When the pull rope drive unit pushes the pull rope traction member from the first position to the second position, the elastic member is compressed, and the elastic member is used to push the pull rope traction member to the first position.

3. The edge brush device of claim 2, wherein The pull rope drive unit includes: A rope-driven motor is installed on the main body; A cam is rotatably connected to the pull-rope drive motor, which drives the cam to rotate. The edge of the cam has a protrusion, and the distance between the protrusion and the rotation axis of the cam is greater than the distance between any point on the edge of the cam and the rotation axis of the cam. A push rod is movably mounted on the main body. The two ends of the push rod contact the edge of the cam and the pull rope traction member, respectively. The cam can push the push rod to move, so that the push rod pushes the pull rope traction member to move. Specifically, when the protrusion rotates to a position that contacts the push rod, the push rod pushes the rope traction member to the second position; when the protrusion rotates to a position away from the push rod, the elastic member pushes the rope traction member to the first position.

4. The side brush device according to claim 2, characterized in that, The subject also includes: The housing assembly, wherein the side brush drive unit is mounted on the housing assembly.

5. The side brush device according to claim 4, characterized in that, The first transmission component and the second transmission component are gears.

6. The side brush device according to claim 4, characterized in that, Also includes: Multiple wire holes are provided in the inner housing, and the wire holes are used to pass through the pull rope.

7. The side brush device according to claim 4, characterized in that, The housing assembly includes: Upper shell; The lower housing is connected to the upper housing, and the upper housing and the lower housing together form a receiving cavity, in which the first transmission member, the second transmission member and the transmission gear are located.

8. The side brush device according to claim 2, characterized in that, The side brush assembly also includes: A housing, multiple brush bodies are sequentially connected to the periphery of the housing, and the mounting base assembly is installed inside the housing.

9. A robotic vacuum cleaner, characterized in that, include: The side brush device as described in any one of claims 1 to 8.

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