Side-brush structure and cleaning apparatus

Abstract

Disclosed in the present application are a side-brush structure (100) and a cleaning apparatus. The side-brush structure (100) comprises a side-brush main body (110), a first rotating portion (120), a second rotating portion (130) and a transmission unit (140), wherein a housing (111) accommodates at least part of a cleaning member (112); and the transmission unit (140) can drive the first rotating portion (120) and the second rotating portion (130) to rotate asynchronously, so as to make the cleaning member (112) extend from or retract into the housing (111). In this way, when an edge of an area to be cleaned, such as the root of a wall or a corner, is to be cleaned, the cleaning member (112) can be extended from the housing (111) so as to clean the edge of the area, thereby improving the cleaning effect; and when the side-brush structure (100) is not suitable for use in cleaning during a cleaning process of the cleaning apparatus, the cleaning member (112) can be retracted into the housing (111), such that the flexibility of use of the cleaning member is improved, and thus the service life of the cleaning member (112) is prolonged.

Description

Side brush structure and cleaning equipment

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on January 9, 2024, with application number 202410032543.5 and application name “Side brush structure and cleaning device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The embodiments of the present application relate to the technical field of cleaning equipment, and in particular to a side brush structure and a cleaning equipment. Background Art

[0003] The cleaning device uses a side brush to sweep debris from the surface to be cleaned to the suction port, where the negative pressure suction generated by the suction motor sucks the debris into the dust collection box. The inventors realized that when the side brush is not used in the cleaning area, such as when cleaning the middle of the cleaning area, the side brush is likely to blow away dust and other dirt, affecting the cleaning effect; and when the cleaning device is not performing a cleaning operation, especially when the cleaning device passes through a carpeted area, the side brush contacts the carpet, and the resistance of the ground or carpet can easily cause the side brush to be damaged (such as the bristles of the side brush diverge, curl, or the brush head detaches, etc.), thereby shortening the service life of the side brush.

[0004] Application Contents

[0005] This application aims to solve at least one of the technical problems existing in the prior art or related art.

[0006] To this end, a first aspect of the present application provides a side brush structure.

[0007] A second aspect of the present application provides a cleaning device.

[0008] In view of this, according to a first aspect of an embodiment of the present application, a side brush structure is proposed, comprising:

[0009] A side brush body, the side brush body comprising a shell and a cleaning member, the shell at least accommodating a portion of the cleaning member;

[0010] a first rotating portion connected to the housing;

[0011] a second rotating portion connected to the cleaning member;

[0012] A transmission unit is connected to the first rotating part and the second rotating part, and the transmission unit can drive the first rotating part and the second rotating part to rotate asynchronously, so that the cleaning member is extended or retracted through the shell.

[0013] In a feasible implementation manner, the transmission unit includes:

[0014] Input gear;

[0015] a first transmission assembly, the first transmission assembly being configured to be connected to the first rotating portion;

[0016] a second transmission member connected to the second rotating portion;

[0017] In which, the input gear is connected to the second transmission member, the first transmission assembly is used to connect to the second transmission member, and the transmission ratio of the input gear to the first rotating part is not equal to the transmission ratio of the input gear to the second rotating part, so that the transmission unit can drive the first rotating part and the second rotating part to rotate asynchronously.

[0018] In a feasible embodiment, the side brush structure further includes:

[0019] A switching component is connected to the first rotating part to switch the connection state of the first rotating part so that the first rotating part is driven only by the first transmission component, or is driven only by the second transmission component, or is driven by both the first transmission component and the second transmission component.

[0020] In a feasible embodiment, the first transmission assembly includes:

[0021] a first gear, the first gear being configured to be connected to the second transmission member;

[0022] a second gear, the second gear meshing with the first gear;

[0023] a bypass shaft, one end of which is connected to the second gear;

[0024] a third gear, the other end of the bypass shaft being connected to the third gear;

[0025] Wherein, the first rotating part includes: a fourth gear, and the third gear is engaged with the fourth gear.

[0026] In a feasible embodiment, the second transmission member includes:

[0027] a fifth gear, the fifth gear being connected to the second rotating portion, and the input gear being connected to the fifth gear;

[0028] Wherein, the first gear is used to be connected to the fifth gear.

[0029] In a feasible implementation manner, the switching component includes:

[0030] a first clutch connected to one side of the first gear;

[0031] a second clutch connected to the fifth gear;

[0032] The limiting assembly is connected to the fourth gear and the fifth gear, so that the fourth gear can rotate relative to the fifth gear, or the fourth gear and the fifth gear can only rotate synchronously.

[0033] In a feasible embodiment, the first gear and the fifth gear are overlapped, the first clutch is used to engage with the second clutch, and the matching teeth of the fifth gear and the input gear are helical teeth, so that when the input gear rotates, the fifth gear approaches or moves away from the first gear.

[0034] In a feasible implementation manner, when the first gear is connected to the fifth gear through the first clutch and the second clutch, and the fourth gear is rotatable relative to the fifth gear, the fourth gear is only driven by the first transmission assembly.

[0035] In a feasible embodiment, when the first gear is connected to the fifth gear through the first clutch and the second clutch, and the fourth gear and the fifth gear can only rotate synchronously, the fourth gear is simultaneously driven by the first transmission assembly and the second transmission member, and the transmission unit is stuck.

[0036] In a feasible implementation manner, when the first gear is disengaged from the fifth gear and the fourth gear and the fifth gear can only rotate synchronously, the fourth gear is only driven by the second transmission member.

[0037] In a feasible implementation manner, the limiting component includes:

[0038] a first limiting portion, the first limiting portion being connected to the fifth gear, a slide being formed on the first limiting portion, a first limit position being formed at one end of the slide, a second limit position being formed at the other end of the slide, a lifting slide being formed at the second limit position of the first limiting portion, the lifting slide being connected to the slide;

[0039] A second limiting portion is connected to the fourth gear.

[0040] In a feasible embodiment, at least part of the second limiting portion is connected to the first limiting portion, and when the second limiting portion is in the first extreme position, the fourth gear and the fifth gear can only rotate synchronously, and the fifth gear cannot approach or move away from the first gear.

[0041] In a feasible embodiment, at least part of the second limiting portion is connected to the first limiting portion, and when the second limiting portion is in the slide, the fourth gear can rotate relative to the fifth gear, and the fifth gear cannot approach or move away from the first gear.

[0042] In a feasible embodiment, at least part of the second limiting portion is connected to the second extreme position, and when the second limiting portion is in the slide, the fourth gear and the fifth gear can only rotate synchronously, and the fifth gear can approach or move away from the first gear.

[0043] In a feasible embodiment, there are multiple slideways, and both ends of each slideway are formed with the first limit position and the second limit position; and / or

[0044] The edges of the first limit position and the second limit position are formed with transition slopes; and / or

[0045] The second limiting portion includes a hook, and a gripping head of the hook is used to be connected to the first limiting portion.

[0046] In a feasible embodiment, the side brush structure further includes:

[0047] A driving member is connected to the transmission unit.

[0048] In a feasible embodiment, the side brush structure further includes:

[0049] A driving gear set, wherein the output end of the driving member is connected to the driving gear set, and the output end of the driving gear set is connected to the transmission unit.

[0050] In a feasible embodiment, the second rotating part includes:

[0051] a main shaft, one end of which passes through the first rotating portion and is connected to the cleaning member;

[0052] a boss, the boss being arranged at the other end of the main shaft;

[0053] The mounting portion is arranged on the second transmission member of the transmission unit, and the boss is connected to the second transmission member.

[0054] In a feasible embodiment, the side brush structure further includes:

[0055] A casing, wherein the transmission unit, the first rotating part and the second rotating part are arranged in the casing.

[0056] In a feasible embodiment, the cleaning element includes:

[0057] a brush head, wherein the second rotating portion is connected to the brush head;

[0058] a brush rod connected to the brush head;

[0059] Bristles are connected to the brush rod, and the transmission unit can drive the first rotating part and the second rotating part to rotate asynchronously, so that the brush rod is extended or retracted through the shell.

[0060] In a feasible implementation manner, the brush rod is made of a flexible material.

[0061] According to a second aspect of an embodiment of the present application, a cleaning device is provided, comprising:

[0062] Clean the main body of the equipment;

[0063] As described in any of the above technical solutions, the side brush structure is connected to the cleaning device body.

[0064] Compared with the prior art, this application has at least the following beneficial effects:

[0065] The side brush structure provided in the embodiment of the present application includes a side brush body, a first rotating part, a second rotating part, and a transmission unit, and the transmission unit can drive the first rotating part and the second rotating part to rotate asynchronously, so that the cleaning member can be extended or retracted from the shell. In this way, when cleaning the edge of a cleaning area such as a wall base or a corner, the cleaning member can be extended from the shell to clean the edge of the cleaning area, thereby improving the cleaning effect. In addition, when the cleaning member of the side brush structure is not used for cleaning during the cleaning process, such as when cleaning a carpet, the cleaning member can be retracted into the shell, thereby improving the flexibility of the cleaning member. It also avoids damage to the cleaning member caused by the resistance of the ground or carpet, thereby increasing the service life of the cleaning member, and thus increasing the service life of the side brush structure. In addition, the side brush structure does not require the installation of electronic components such as sensors and controllers to achieve automatic extension or retraction of the cleaning member, thereby reducing costs. By accommodating the cleaning member through the shell, the cleaning member can be protected, especially the rotating part of the cleaning member, thereby reducing the probability of dust intrusion, ensuring rotation stability, and increasing the service life of the side brush structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0067] FIG1 is a schematic structural diagram from one angle of a cleaning device according to an embodiment of the present application;

[0068] FIG2 is a schematic structural diagram of a cleaning device according to another embodiment of the present application;

[0069] FIG3 is a schematic structural diagram of a side brush structure according to an embodiment of the present application;

[0070] FIG4 is a schematic structural diagram of a side brush structure according to an embodiment of the present application, with the housing, driving member, and side brush body hidden;

[0071] FIG5 is a schematic structural diagram of a side brush structure according to an embodiment of the present application, with a portion of the transmission unit omitted;

[0072] FIG6 is a schematic structural diagram from a first angle of a side brush structure according to an embodiment of the present application, with the housing and the side brush body hidden;

[0073] FIG7 is a schematic structural diagram of a fifth gear at a first angle of a side brush structure according to an embodiment of the present application;

[0074] FIG8 is a schematic structural diagram of a fifth gear of a side brush structure according to an embodiment of the present application at a second angle;

[0075] FIG9 is a schematic structural diagram of the fifth gear of the side brush structure according to an embodiment of the present application at a third angle;

[0076] FIG10 is a second perspective schematic structural diagram of a side brush structure according to an embodiment of the present application, with the housing and the side brush body hidden;

[0077] FIG11 is a schematic structural diagram of a transmission unit of a side brush structure according to an embodiment of the present application;

[0078] FIG12 is a schematic structural diagram of the second rotating portion of the side brush structure according to an embodiment of the present application.

[0079] In particular, the correspondence between the reference numerals and component names in Figures 1 to 12 is as follows: 10 Cleaning device main body, 30 Human-computer interaction system, 40 Cleaning system, 50 Driving system; 501 First driving wheel, 502 Second driving wheel, 503 Guide wheel, 200 Roller brush; 100 Side brush structure, 110 Side brush main body, 120 First rotating part, 130 Second rotating part, 140 Transmission unit, 150 Switching assembly, 160 Driving member, 170 Driving gear set, 180 Housing; 111 Housing, 112 Cleaning member; 121 Fourth gear, 131 Main shaft, 132 Mounting portion, 133 Boss, 141 Input gear, 142 First transmission assembly, 143 Second transmission member; 151 First clutch, 152 Second clutch, 153 Limiting assembly; 1122 Brush rod, 1123 Brush bristles; 1421 First gear, 1422 Second gear, 1423 Bypass shaft, 1424 Third gear, 1431 Fifth gear; 1531 First position-limiting portion, 1532 Second position-limiting portion; 1701 Sixth gear, 1702 Seventh gear; 15311 Slideway, 15312 First extreme position, 15313 Second extreme position, 15321 Hook. DETAILED DESCRIPTION

[0080] In order to better understand the above technical solution, the technical solution of the embodiment of the present application is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiment of the present application and the specific features in the embodiment are detailed descriptions of the technical solution of the embodiment of the present application, rather than limitations on the technical solution of the present application. In the absence of conflict, the embodiment of the present application and the technical features in the embodiment can be combined with each other.

[0081] In this application, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless expressly limited otherwise. Terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art can understand the specific meanings of the above terms in this application based on the specific circumstances.

[0082] In the description of this application, it should be understood that the terms "up", "down", "left", "right", "front", "back", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on this application.

[0083] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present application. In this specification, schematic representations 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 any one or more embodiments or examples.

[0084] In the prior art, when the cleaning device is cleaning the middle of the cleaning area, the side brush is likely to blow away dust and other dirt, affecting the cleaning effect; for example, when the cleaning device is not performing cleaning operations, especially when the cleaning device is passing through the carpet area, the side brush contacts the carpet, and the resistance of the ground or the carpet is likely to cause damage to the cleaning parts such as the brush head of the side brush (such as the bristles of the side brush diverge, curl, or the brush head detaches, etc.), thereby shortening the service life of the side brush.

[0085] In order to effectively solve the above technical problems, the embodiments of the present application provide a side brush structure 100 that can automatically extend or retract a cleaning member 112. When cleaning the edges of cleaning areas such as wall bases or corners, the cleaning member 112 can be extended from the housing 111 to clean the edges of the cleaning area, thereby improving the cleaning effect. However, when the cleaning member 112 of the side brush structure 100 is not used for cleaning, the cleaning member 112 can be retracted into the housing 111, thereby improving the flexibility of the use of the cleaning member 112. The automatic retractable side brush structure can prevent damage to the cleaning member 112 caused by resistance from the ground or carpet, thereby extending the service life of the cleaning member 112.

[0086] In specific applications, the cleaning device equipped with the side brush structure 100 according to the embodiment of the present application may be a sweeping robot, a mopping robot, etc.

[0087] Specifically, as shown in Figures 1 and 2, the cleaning device includes a cleaning device body 10, a sensing system, a control system, a human-computer interaction system 30, a cleaning system 40, a driving system 50, an energy system, etc.

[0088] The cleaning device body 10 includes a forward portion, a rearward portion and a chassis portion, and has an approximately circular shape (both the front and the back are circular), and may also have other shapes, including but not limited to an approximately D-shape with a front and a rear circle.

[0089] As shown in Figures 1 and 2 , the sensing system includes a positioning device located above the cleaning machine body 10, a bumper located at the front of the cleaning machine body 10, a cliff sensor, and sensing devices such as an ultrasonic sensor, an infrared sensor, a magnetometer, an accelerometer, a gyroscope, and an odometer. These sensors provide the control system with various machine position and movement status information. The positioning device includes, but is not limited to, a camera and a distance measurement component 20.

[0090] The control system is located on a circuit board within the cleaning device body 10 and may include a central processing unit or an application processor. The control system can combine information fed back by the sensing system to comprehensively determine the current operating state of the sweeper, such as when it is crossing a threshold, on a carpet, on a cliff, stuck above or below, the dirt collection device is full, or being lifted, etc. The control system also provides specific next-step action strategies for different situations, ensuring that the robot's operation better meets user requirements and provides a better user experience.

[0091] As shown in Figure 2, the drive system 50 is used to drive the robot vacuum forward or backward. In some embodiments, the drive system 50 includes a pair of first and second drive wheels 501, 502 mounted on either side of the center of the chassis. The first and second drive wheels 501, 502 are used to drive the robot vacuum forward or backward. In some embodiments, the drive assembly may also include a guide wheel 503 disposed at the front of the chassis to change the direction of travel of the robot vacuum during travel.

[0092] As shown in Figure 2, the cleaning system 40 includes a side brush structure 100, a roller brush 200, a dirt collection device, a fan, and a dirt suction pipeline. When the robot vacuum is cleaning, the roller brush 200 and / or the side brush structure 100, which have some contact with the ground, sweep up dirt from the ground and carry it to the front of the suction port between the roller brush 200 and the dirt collection device. The fan then draws air from the dirt collection device and the dirt suction pipeline, creating a negative pressure there. This allows dirt near the dirt suction port to flow into the dirt collection device along with the airflow into the dirt suction pipeline.

[0093] Energy systems include rechargeable batteries such as nickel-metal hydride and lithium batteries.

[0094] As shown in Figures 1 and 2, the human-machine interaction system 30 includes buttons on the main unit panel for the user to select functions; a display screen and / or indicator lights and / or a speaker to display the current machine status or function options to the user; and a mobile client application. For route-guided automatic cleaning devices, the mobile client can display a map of the device's environment and the device's location, providing users with a richer and more user-friendly set of functions.

[0095] It should be noted that the sweeping robot may also include other modules or components not shown in Figures 1 to 2, or may only include some of the above-mentioned modules or components. The embodiments of the present application are not limited to this and are only described using the above-mentioned cleaning equipment as an example.

[0096] The side brush structure in the embodiment of the present application is explained in detail below. As shown in Figures 3 to 5, according to the first aspect of the embodiment of the present application, a side brush structure 100 is proposed, including: a side brush body 110, the side brush body 110 includes a shell 111 and a cleaning member 112, the shell 111 at least accommodates part of the cleaning member 112; a first rotating part 120, the first rotating part 120 is connected to the shell 111; a second rotating part 130, the second rotating part 130 is connected to the cleaning member 112; a transmission unit 140, the transmission unit 140 is connected to the first rotating part 120 and the second rotating part 130, the transmission unit 140 can drive the first rotating part 120 and the second rotating part 130 to rotate asynchronously, so that the cleaning member 112 is extended or retracted through the shell 111.

[0097] The side brush structure 100 provided in the embodiment of the present application includes a side brush body, a first rotating part 120, a second rotating part 130 and a transmission unit 140, and the transmission unit 140 can drive the first rotating part 120 and the second rotating part 130 to rotate asynchronously, so that the cleaning member 112 is extended or retracted from the shell 111. In this way, when cleaning the edges of cleaning areas such as wall roots or corners, the cleaning member 112 can be extended from the shell 111 to clean the edges of the cleaning area, thereby improving the cleaning effect; and when the side brush structure 100 is not used for cleaning during the cleaning process, such as when cleaning carpets, the side brush structure 100 can be retracted into the shell 111, thereby improving the flexibility of the cleaning member 112 and avoiding damage to the cleaning member 112 caused by the resistance of the ground or carpet, thereby increasing the service life of the cleaning member 112. In addition, the side brush structure 100 does not require the provision of electronic components such as sensors and controllers to realize the automatic extension or retraction of the cleaning member 112, thereby reducing costs. By accommodating the cleaning member 112 through the shell 111, the cleaning member 112 can be protected, especially the rotating part of the cleaning member 112, thereby reducing the probability of dust intrusion, ensuring rotation stability, and increasing the service life of the side brush structure 100.

[0098] It can be understood that the asynchronous rotation of the first rotating part 120 and the second rotating part 130 means that there is a speed difference between the first rotating part 120 and the second rotating part 130 when they rotate, that is, the rotational speeds of the first rotating part 120 and the second rotating part 130 can be different. In this way, the cleaning part 112 can be extended or retracted from the shell 111 by utilizing the speed difference between the cleaning part 112 and the shell 111.

[0099] As shown in Figures 5 and 6, in a feasible embodiment, the transmission unit 140 includes: an input gear 141; a first transmission assembly 142, the first transmission assembly 142 is used to connect to the first rotating part 120; a second transmission member 143, the second transmission member 143 is connected to the second rotating part 130; wherein, the input gear 141 is connected to the second transmission member 143, the first transmission assembly 142 is used to connect to the second transmission member 143, and the transmission ratio of the input gear 141 to the first rotating part 120 is not equal to the transmission ratio of the input gear 141 to the second rotating part 130, so that the transmission unit 140 can drive the first rotating part and the second rotating part to rotate asynchronously.

[0100] This technical solution further provides the structural composition of a transmission unit 140. As shown in FIG4 , the transmission unit 140 may include an input gear 141, a first transmission assembly 142, and a second transmission member 143. During use, a power source may be connected to the input gear 141, which is then connected to the second transmission member 143. The second transmission member 143 drives the second rotating portion 130 to rotate. The first transmission assembly 142 is then connected to the second transmission member 143, which drives the first rotating portion 120 to rotate. The transmission ratio from the input gear 141 to the first rotating portion 120 is not equal to the transmission ratio from the input gear 141 to the second rotating portion 130. Based on this, the first rotating portion 120 and the second rotating portion 130 can rotate at different speeds. In other words, there is a speed difference between the first rotating portion 120 and the second rotating portion 130. In this case, there will be a difference in the speed of the housing 111 of the side brush body 110 and the speed of the cleaning member 112. The cleaning member 112 can be retracted into the housing 111 or output through the housing 111.

[0101] It is understood that the transmission ratio of the second transmission member 143 can be greater than the transmission ratio of the first transmission assembly 142. As the transmission ratio increases, the angular velocity of the driven wheel decreases, which can make the rotation speed of the first rotating part 120 slightly greater than the rotation speed of the second rotating part 130. Based on this, by controlling the driving direction of the driving member 160, the cleaning member 112 can be extended or retracted through the housing 111.

[0102] As shown in Figures 5 and 6, in a feasible embodiment, the side brush structure 100 also includes: a switching component 150, the switching component 150 is connected to the first rotating part 120 to switch the connection state of the first rotating part 120, so that the first rotating part 120 is only driven by the first transmission component 142, or only driven by the second transmission member 143, or driven by the first transmission component 142 and the second transmission member 143 at the same time.

[0103] In this technical solution, the side brush structure 100 may further include a switching component 150. By setting the switching component 150, the driving mode of the first rotating part 120 can be switched. Under some working conditions, the first rotating part 120 can be driven only by the first transmission component 142. In this case, the first rotating part 120 and the second rotating part 130 rotate asynchronously. By controlling the driving direction, the cleaning member 112 can be extended or retracted through the shell 111.

[0104] Under some working conditions, the first rotating part 120 can also be transmitted through the second transmission member 143. In this case, the first rotating part 120 and the second rotating part 130 are both driven by the second transmission member 143, so the rotation speeds of the shell 111 and the cleaning member 112 are the same. In this case, the side brush body 110 can be approximated as a whole so that the shell 111 and the cleaning member 112 can rotate synchronously, which can improve the cleaning effect.

[0105] Under some operating conditions, the first rotating portion 120 can also be driven by the first transmission assembly 142 and the second transmission member 143 at the same time. In this case, due to the different transmission ratios of the first transmission assembly 142 and the second transmission member 143, the transmission unit 140 will be locked, and the driving member 160 used to drive the transmission unit 140 will generate an overcurrent. In this case, it means that the cleaning member 112 has retracted to the extreme position or extended to the extreme position. In this case, the drive can be stopped, and then the driving direction of the driving member 160 can be changed to drive the side brush body 110 to rotate to perform the cleaning operation. Based on this, the retraction or extension state of the cleaning member 112 can be controlled by changing the transmission method of the transmission unit 140 without relying on other sensing devices, thereby making the control of the side brush structure 100 more convenient and less costly.

[0106] As shown in Figures 5 and 6, in a feasible embodiment, the first transmission assembly 142 includes: a first gear 1421, the first gear 1421 is used to connect to the second transmission member 143; a second gear 1422, the second gear 1422 is engaged with the first gear 1421; a bypass shaft 1423, one end of the bypass shaft 1423 is connected to the second gear 1422; a third gear 1424, the other end of the bypass shaft 1423 is connected to the third gear 1424; wherein, the first rotating part 120 includes: a fourth gear 121, the third gear 1424 is engaged with the fourth gear 121.

[0107] This technical solution further provides a structural composition of a first transmission assembly 142, which may include a first gear 1421, a second gear 1422, a bypass shaft 1423, and a third gear 1424, while the first rotating portion 120 includes a fourth gear 121. Based on this, during operation, when the first gear 1421 is connected to the second transmission member 143, the second transmission member 143 drives the first gear 1421 to rotate, and the first gear 1421 drives the second gear 1422 to rotate. Then, the fourth gear 121 can be driven to rotate via the bypass shaft 1423 and the third gear 1424. The fourth gear 121 is then connected to the housing 111 of the side brush body 110 to drive the housing 111 to rotate.

[0108] In this technical solution, considering that the cleaning member 112 is disposed within the housing 111, arranging the first rotating portion 120 and the second rotating portion 130 in a stacked state facilitates connection to the housing 111 and the cleaning member 112, respectively. This arrangement also facilitates reducing the volume of the transmission unit 140. Furthermore, by providing a bypass shaft 1423 on one side of the first rotating portion 120 and the second rotating portion 130, on the one hand, it facilitates establishing a connection between the first transmission assembly 142 and the first rotating portion 120; on the other hand, it facilitates further reducing the volume of the transmission unit 140 and improving transmission stability; and on the other hand, by providing the first gear 1421, the second gear 1422, and the third gear 1424, it facilitates adjusting the transmission ratio of the first transmission assembly 142, so that the transmission ratio of the first transmission assembly 142 is different from that of the second transmission member 143.

[0109] As shown in Figures 5 and 6, in a feasible embodiment, the second transmission member 143 includes: a fifth gear 1431, the fifth gear 1431 is connected to the second rotating part 130, and the input gear 141 is connected to the fifth gear 1431; wherein, the first gear 1421 is used to connect to the fifth gear 1431.

[0110] This technical solution further provides the structure of a second transmission member 143. Because the first transmission assembly 142 includes multiple gears, the transmission ratio of the first transmission assembly 142 can be adjusted, thereby simplifying the structure of the second transmission member 143. The second transmission member 143 includes a fifth gear 1431, which can be connected to the input gear 141. The fifth gear 1431 is also connected to the second rotating portion 130, so that the second rotating portion 130 can drive the cleaning member 112 to rotate.

[0111] It is understandable that in order to reduce the volume of the transmission unit 140, the fifth gear 1431 can be overlapped with the fourth gear 121, and one end of the second rotating part 130 is connected to the fifth gear 1431, and the other end passes through the fourth gear 121 and is connected to the cleaning member 112.

[0112] It can be understood that the first transmission component 142 and the second transmission member 143 can be composed of a gear structure, or can include a turbine and a worm, or can include a hydraulic structure, or can include an electric push rod. It is only necessary to achieve different transmission ratios of the first transmission component 142 and the second transmission member 143. Other forms of transmission methods are also within the scope of protection of this application.

[0113] As shown in Figures 4 to 6, in a feasible embodiment, the switching component 150 includes: a first clutch 151, the first clutch 151 is connected to one side of the first gear 1421; a second clutch 152, the second clutch 152 is connected to the side of the fifth gear 1431 opposite to the first gear 1421; a limiting component 153, connected to the fourth gear 121 and the fifth gear 1431, so that the fourth gear 121 can rotate relative to the fifth gear 1431, or the fourth gear 121 and the fifth gear 1431 can only rotate synchronously; wherein the first gear 1421 and the fifth gear 1431 are stacked along the height direction of the side brush body 110, the first clutch 151 is used to engage with the second clutch 152, and the matching teeth of the fifth gear 1431 and the input gear 141 are helical teeth, so that the input gear 14 1 rotates, the fifth gear 1431 can approach or move away from the first gear 1421; wherein, when the first clutch 151 and the second clutch 152 are disengaged, and the fourth gear 121 can rotate relative to the fifth gear 1431, the fourth gear 121 is only driven by the first transmission assembly 142; wherein, when the first clutch 151 and the second clutch 152 are engaged, and the fourth gear 121 and the fifth gear 1431 can only rotate synchronously, the fourth gear 121 is simultaneously driven by the first transmission assembly 142 and the second transmission member 143, and the transmission unit 140 is stuck; wherein, when the first clutch 151 and the second clutch 152 are disengaged, and the fourth gear 121 and the fifth gear 1431 can only rotate synchronously, the fourth gear 121 is only driven by the second transmission member 143.

[0114] In this technical solution, the structural composition of the switching assembly 150 is further provided. The switching assembly 150 may include a first clutch 151, a second clutch 152 and a limit assembly 153. The limit assembly 153 is used to change the connection state between the fourth gear 121 and the fifth gear 1431. By setting the first clutch 151 and the second clutch 152, and the matching teeth of the fifth gear 1431 and the input gear 141 as helical teeth, the connection state between the fifth gear 1431 and the first gear 1421 can be adjusted. Based on this, through the setting of the switching assembly 150, the side brush structure 100 has at least the following operating states:

[0115] In the first operating state, the first gear 1421 is connected to the fifth gear 1431, and the first gear 1421 can rotate synchronously with the fifth gear 1431, and the fourth gear 121 can rotate relative to the fifth gear 1431. In this state, the first rotating portion 120 is driven by the first transmission assembly 142, and the fourth gear 121 is driven by the second transmission member 143, allowing the cleaning member 112 to be extended or retracted from the housing 111, thereby improving the flexibility of the cleaning member 112 and preventing damage to the cleaning member 112 caused by resistance from the floor or carpet, thereby extending the service life of the cleaning member 112 and, consequently, the service life of the side brush structure 100.

[0116] In the second operating state, the first gear 1421 is connected to the fifth gear 1431. The first gear 1421 and the fifth gear 1431 rotate synchronously, while the fourth gear 121 and the fifth gear 1431 rotate only synchronously. In this state, the first rotating portion 120 is driven simultaneously by the first transmission assembly 142 and the second transmission member 143. Due to the different transmission ratios of the first transmission assembly 142 and the second transmission member 143, the transmission unit 140 is locked, and the drive member 160 used to drive the transmission unit 140 generates an overcurrent, indicating that the cleaning member 112 has been retracted or extended to its limit. In this case, the drive can be stopped, and the driving direction of the drive member 160 can be changed to drive the side brush body 110 to rotate to perform the cleaning operation. Based on this, the retraction or extension state of the cleaning member 112 can be controlled by changing the transmission method of the transmission unit 140 without relying on other sensing devices, thereby making the control of the side brush structure 100 more convenient and cost-effective.

[0117] The third working state: the first gear 1421 is disengaged from the fifth gear 1431, and the fifth gear 1431 and the fourth gear 121 can only rotate synchronously. The fifth gear 1431 drives the fourth gear 121 to rotate. The first transmission assembly 142 does not have a power source but idles under the action of the fourth gear 121. In this case, the first rotating part 120 and the second rotating part 130 are both driven by the second transmission member 143, so the rotational speed of the shell 111 and the cleaning member 112 is the same. In this case, the side brush body 110 can be approximated as a whole, so that the shell 111 and the cleaning member 112 can rotate synchronously, which can improve the cleaning effect.

[0118] Based on this, through the setting of the first clutch 151, the second clutch 152 and the limit assembly 153, the first rotating part 120 has different transmission modes, which can realize the extension and retraction of the cleaning member 112 and the automatic stop of the extension and retraction, and can also realize the synchronous rotation of the cleaning member 112 and the shell 111, so that the side brush structure 100 is more convenient to use and the control is simpler and more convenient.

[0119] It is understood that the first clutch 151 and the second clutch 152 may include clutch teeth.

[0120] As shown in Figures 6 to 10, in a feasible embodiment, the limiting assembly 153 includes: a first limiting portion 1531, the first limiting portion 1531 is connected to the fifth gear 1431, a slide 15311 is formed on the first limiting portion 1531, one end of the slide 15311 is formed with a first extreme position 15312, and the other end of the slide 15311 is formed with a second extreme position 15313, the first limiting portion 1531 is formed with a lifting slide at the second extreme position 15313, and the lifting slide is connected to the slide 15311; a second limiting portion 1532, the second limiting portion 1532 is connected to the fourth gear 121; wherein, at least part of the second limiting portion 1532 is connected to the first limiting portion 1531. When the second limiting portion 1532 is in the first extreme position 15312, the fourth gear 121 and the fifth gear 1431 can only rotate synchronously, and the fifth gear 1431 cannot approach or move away from the first gear 1421; at least part of the second limiting portion 1532 is connected to the first limiting portion 1531, and the second limiting portion 1532 is in the slide 15311, the fourth gear 121 can rotate relative to the fifth gear 1431, and the fifth gear 1431 cannot approach or move away from the first gear 1421; at least part of the second limiting portion 1532 is in the second extreme position 15313, the fourth gear 121 and the fifth gear 1431 can only rotate synchronously, and the fifth gear 1431 can approach or move away from the first gear 1421.

[0121] In this technical solution, the structure of the limiting assembly 153 is further provided. The limiting assembly 153 includes a first limiting portion 1531 and a second limiting portion 1532. The first limiting portion 1531 includes a slide 15311, a first limit position 15312, and a second limit position 15313. The second limiting portion 1532 is connected to the first limiting portion 1531. When the second limiting portion 1532 is in different positions, the fourth gear 121 and the fifth gear 1431 will be in different connection states. For example:

[0122] In the first state, the second limiting portion 1532 is within the slideway 15311. In this state, the fourth gear 121 can rotate relative to the fifth gear 1431, and there is no transmission relationship between the fourth gear 121 and the fifth gear 1431. When the fifth gear 1431 rotates synchronously with the first gear 1421, the first rotating portion 120 is driven by the first transmission assembly 142, and the fourth gear 121 is driven by the second transmission member 143. This allows the cleaning member 112 to be extended or retracted from the housing 111, improving the flexibility of the cleaning member 112 and preventing damage to the cleaning member caused by resistance from the floor or carpet, thereby increasing the service life of the cleaning member 112 and, consequently, the service life of the side brush structure 100.

[0123] The second state is when the second limit portion 1532 is in the first limit position 15312. In this state, by controlling the driving direction of the driver 160, the fourth gear 121 and the fifth gear 1431 can only rotate synchronously. The fifth gear 1431 has no position adjustment, and the positional relationship between the fifth gear 1431 and the first gear 1421 is fixed. In this state, if the fifth gear 1431 rotates synchronously with the first gear 1421, the first rotating portion 120 will be driven simultaneously by the first transmission assembly 142 and the second transmission member 143. Due to the different transmission ratios of the first transmission assembly 142 and the second transmission member 143, the transmission unit 140 will be locked, and the driver 160 used to drive the transmission unit 140 will generate an overcurrent, indicating that the cleaning element 112 has retracted or extended to its limit position. In this case, the drive can be stopped, and the driving direction of the driver 160 can be changed to drive the side brush body 110 to rotate to perform the cleaning operation. Based on this, the retraction or extension state of the cleaning member 112 can be controlled by changing the transmission mode of the transmission unit 140 without relying on other sensing devices, thereby making the control of the side brush structure 100 more convenient and cost-effective. If the first gear 1421 is disengaged from the fifth gear 1431, the first rotating portion 120 and the second rotating portion 130 are both driven by the second transmission member 143, so the rotation speed of the housing 111 and the cleaning member 112 is the same. In this case, the side brush body 110 can be approximately integrated, allowing the housing 111 and the cleaning member 112 to rotate synchronously, which can improve the cleaning effect.

[0124] The third state: the second limit portion 1532 is in the second extreme position 15313. In this case, by controlling the driving direction of the driving member 160, the fourth gear 121 and the fifth gear 1431 can only rotate synchronously, and the fifth gear 1431 has space for position adjustment, which can switch the disconnection or connection of the synchronous rotation relationship between the first gear 1421 and the fifth gear 1431, so that the side brush structure 100 can switch between different operating modes.

[0125] In a feasible embodiment, there are multiple slides 15311 , and a first extreme position 15312 and a second extreme position 15313 are formed at both ends of each slide 15311 .

[0126] In this technical solution, there can be multiple slides 15311, based on which a second limiting portion 1532 can be connected to each slide 15311, so that the fifth gear 1431 and the fourth gear 121 have a multi-point connection relationship, which makes the side brush structure 100 have higher mechanical strength and stronger operational stability.

[0127] In a feasible embodiment, the edges of the first limit position 15312 and the second limit position 15313 are formed with a transition slope. This configuration makes the second limit portion 1532 move more smoothly within the first limit portion 1531, reduces the probability of jamming, and makes the operation of the side brush structure 100 smoother.

[0128] In a feasible implementation manner, the second limiting portion 1532 includes a hook 15321 , and a gripping head of the hook 15321 is used to connect to the first limiting portion 1531 .

[0129] In this technical solution, a style of a second limiting portion 1532 is further provided. The second limiting portion 1532 may include a hook 15321. Such a setting can make the connection between the second limiting portion 1532 and the first limiting portion 1531 tighter, facilitate the setting of the hook 15321 within the slide 15311, and facilitate the switching of the hook 15321 between the first extreme position 15312 and the second extreme position 15313, while making the connection relationship between the fifth gear 1431 and the fourth gear 121 more reliable.

[0130] As shown in FIG7 , in a feasible embodiment, the side brush structure 100 further includes a driving member 160, which is connected to the transmission unit 140. The driving member 160 can serve as a power source for the transmission unit 140, and the driving member 160 can drive the gear to rotate, thereby driving the side brush structure 100 to operate, including cleaning operation, extension of the cleaning member 112, retraction of the cleaning member 112, and stopping of the position adjustment of the cleaning member 112.

[0131] In some examples, the driving member 160 may be a motor.

[0132] As shown in FIG. 7 , in a feasible embodiment, the side brush structure 100 further includes a driving gear set 170 , the output end of the driving member 160 is connected to the driving gear set 170 , and the output end of the driving gear set 170 is connected to the transmission unit 140 .

[0133] In this technical solution, the side brush structure 100 is provided with a driving gear set 170, which can facilitate the adjustment of the output transmission of the driving member 160 so that the side brush structure 100 operates at a reasonable rotation speed.

[0134] In some examples, the driving gear set 170 may include a sixth gear 1701 and a seventh gear 1702 , the sixth gear 1701 meshes with the fourth gear 121 , the seventh gear 1702 meshes with the sixth gear 1701 , and the output end of the driving member 160 is connected to the seventh gear 1702 .

[0135] As shown in Figures 11 and 12, in a feasible embodiment, the second rotating part 130 includes: a main shaft 131, one end of the main shaft 131 passes through the first rotating part 120 and is connected to the cleaning member 112; a boss 133, the boss 133 is arranged at the other end of the main shaft 131; and a mounting part 132, the mounting part 132 is arranged on the second transmission member 143 of the transmission unit, and the boss 133 is connected to the second transmission member 143.

[0136] This technical solution further provides a structural component of the second rotating portion 130. The second rotating portion 130 may include a main shaft 131. This configuration facilitates the rotation of the cleaning member 112 through the main shaft 131, and the transmission is more stable. A boss 133 is provided at the end of the main shaft 131, and a mounting portion 132 is provided on the second rotating portion 130 and the fifth gear 1431. The arrangement of the boss 133 and the mounting portion 132 facilitates the establishment of a connection between the second rotating portion 130 and the fifth gear 1431, facilitates the connection between the second rotating portion 130 and the fifth gear 1431, facilitates the connection between the second rotating portion 130 and the cleaning member 112 through the fourth gear 121, and facilitates the reduction of the volume of the transmission unit 140.

[0137] As shown in FIG3 , in one feasible embodiment, the side brush structure 100 further includes a housing 180, wherein the transmission unit 140, the first rotating portion 120, and the second rotating portion 130 are disposed within the housing 180. The housing 180 protects the transmission unit 140, making the side brush structure 100 more convenient to use while ensuring airtightness and facilitating lubrication of the transmission unit 140.

[0138] As shown in Figure 3, in a feasible embodiment, the cleaning member 112 includes: a brush head 1121, the second rotating part 130 is connected to the brush head 1121; a brush rod 1122, the brush rod 1122 is connected to the brush head 1121; bristles 1123, the bristles 1123 are connected to the brush rod 1122, and the transmission unit 140 can drive the first rotating part 120 and the second rotating part 130 to rotate asynchronously so that the brush rod 1122 extends or retracts through the shell 111; wherein, the brush rod 1122 is made of flexible material.

[0139] In this technical solution, the structural composition of the cleaning member 112 is further provided. The cleaning member 112 may include a brush head 1121, a brush rod 1122 and a brush. The setting of the brush head 1121 facilitates the connection between the cleaning member 112 and the second rotating part 130, and the setting of the brush rod 1122 facilitates the fixation of the bristles 1123. Cleaning operations can be performed by the bristles 1123 contacting the ground.

[0140] In this technical solution, the brush rod 1122 is made of flexible material. This configuration enables the brush rod 1122 to be smoothly retracted into the shell 111 or extended from the shell 111, reducing the probability of the brush rod 1122 breaking and the probability of the brush rod 1122 being difficult to recover from deformation.

[0141] In this technical solution, when the cleaning member 112 is retracted into the shell 111 , the brush rod 1122 is retracted into the shell 111 instead of the bristles 1123 being retracted into the shell 111 , which can reduce the probability of the bristles 1123 being damaged.

[0142] Example

[0143] As shown in Figures 3 to 12, a rotatable main shaft 131 is provided at the center of the fourth gear 121. A guide boss 133 is provided on the main shaft 131, and a guide groove structure 132 is provided on the fifth gear 1431 as a mounting portion. The two cooperate to enable the fifth gear 1431 to drive the main shaft 131 in the direction of rotation. At the same time, the fifth gear 1431 has the freedom to move up and down in the axial direction. Because the meshing gear pair between the input gear 141 and the fifth gear 1431 is helical, when the input gear 141 drives the fifth gear 1431 to rotate, the fifth gear 1431, due to the axial force component of the helical gear meshing, will move up or down according to the direction of rotation of the input gear 141.

[0144] The first gear 1421 and the fifth gear 1431 are respectively provided with a first clutch 151 and a second clutch 152 , which can mesh with each other so that the fifth gear 1431 drives the first gear 1421 in the rotation direction.

[0145] There is a second limiting portion 1532 on the fourth gear 121, and a hook 15321 is formed on the second limiting portion 1532. There is a first limiting portion 1531 on the fifth gear 1431, and the first limiting portion 1531 has a first limit position 15312 and a second limit position 15313 in the left and right directions. The hook is used to move on the first limiting portion 1531.

[0146] The core principle of the telescopic operation of the side brush structure 100 is:

[0147] The fourth gear 121 is connected to the brush head housing, and the main shaft 131 is connected to the brush head core. When the angle difference between the fourth gear 121 and the main shaft 131 changes, the bristles connected to the brush head core extend or retract into the brush head housing.

[0148] As shown in Table 1 below, the (+) and (-) of the components below represent their rotation direction. By default, (+) is clockwise and (-) is counterclockwise, but they can be interchanged based on the actual gear parameter settings to ensure that the fifth gear 1431 moves up and down correctly.

[0149] When the side brush is cleaning normally, the power transmission route of the driving member 160 is:

[0150] Table 1: Normal cleaning power transmission route:

[0151] Among them, the fifth gear 1431 drives the main shaft 131 to rotate synchronously through the mounting portion 132; at this time, the second limit portion 1532 on the fourth gear 121 contacts the second extreme position 15313 of the fifth gear 1431 and is below the vertical section of the first limit portion 1531, so the fifth gear 1431 drives the fourth gear 121 to rotate synchronously, that is, the speeds of the fifth gear 1431, the fourth gear 121, and the main shaft 131 are consistent; at this time, the clutch teeth of the fifth gear 1431 and the first gear 1421 are disengaged, and the first gear 1421 idles.

[0152] As shown in Table 2 below, when the brush rod 1122 of the cleaning member 112 is retracted, the transmission path of the motor power is:

[0153] Table 2: Brush rod power transmission route during retraction:

[0154] Among them, the clutch teeth of the fifth gear 1431 and the first gear 1421 are engaged, and the two rotate synchronously, and the second limit portion 1532 of the fourth gear 121 is in the middle position of the slide 15311 of the fifth gear 1431, that is, the second limit portion 1532 of the fourth gear 121 has no contact with the limits on both sides of the fifth gear 1431, and there is no driving relationship between the fifth gear 1431 and the fourth gear 121; due to the gear ratio, the rotation speed of the fourth gear 121 is slightly faster than that of the fifth gear 1431, and the brush rod 1122 of the cleaning component 112 will be retracted into the shell 111.

[0155] It can be understood that when the second limiting portion 1532 of the fourth gear 121 contacts the first limiting portion 1531 or the second limiting portion 1532 of the fifth gear 1431: the fifth gear 1431 can drive the fourth gear 121; when there is no contact and is in the slide 15311, the fifth gear 1431 and the fourth gear 121 have no direct transmission relationship.

[0156] It will be appreciated that the slideway 15311 of the fifth gear 1431 includes a horizontal section and a vertical section, and the second stopper 1532 on the fourth gear 121 is located within the first stopper 1531 of the fifth gear 1431. Since the fourth gear 121 cannot slide up and down, when the second stopper 1532 is located in the horizontal section within the slideway 15311, the fifth gear 1431 cannot slide downward (i.e., the clutch teeth of the fifth gear 1431 and the fourth gear 121 cannot disengage).

[0157] It can be understood that when the clutch teeth of the fifth gear 1431 and the first gear 1421 are engaged, the transmission ratio from the input gear 141 to the fifth gear 1431 is slightly greater than the transmission ratio from the input gear 141 to the fourth gear 121. The greater the transmission ratio, the smaller the angular velocity of the driven wheel. Therefore, the fourth gear 121 rotates faster than the fifth gear 1431.

[0158] Based on this, the side brush structure 100 provided in the embodiment of the present application has at least the following working conditions:

[0159] Working condition 1: Driving element 160° forward rotation (extending rod -> cleaning)

[0160] Hair extension: The second limit portion 1532 on the fourth gear 121 is located at the first extreme position 15312 of the first limit portion 1531 on the fifth gear 1431, preventing the fifth gear 1431 from moving downward. The motor rotates clockwise, driving the fifth gear 1431 to rotate counterclockwise. Due to the axial force component of the helical gears, the fifth gear 1431 tends to move axially downward. However, because the fifth gear 1431 is supported by the second limit portion 1532 on the fourth gear 121, it cannot sink. As a result, the first clutch 151 and the second clutch 152 are always engaged, causing the fifth gear 1431 to rotate synchronously with the first gear 1421.

[0161] Since the transmission ratio from the input gear 141 to the fifth gear 1431 is slightly greater than the transmission ratio from the input gear 141 to the fourth gear 121, the rotation speed of the fifth gear 1431 is slightly lower than that of the fourth gear 121. Simultaneously, since the main shaft 131 and the fifth gear 1431 rotate synchronously, i.e., the rotation speed of the main shaft 131 is slightly lower than that of the fourth gear 121, the two begin to rotate relative to each other, and the cleaning member 112 begins to extend.

[0162] Normal cleaning:

[0163] The second limiting portion 1532 of the fourth gear 121 rotates to the second limit position 15313 in the first limiting portion 1531 of the fifth gear 1431 . Here, the first limiting portion 1531 has a vertical section, so that the fifth gear 1431 can sink.

[0164] The motor rotates clockwise, driving the fifth gear 1431 to rotate counterclockwise. Due to the action of the helical gears, the fifth gear 1431 sinks, disengaging the first clutch 151 and the second clutch 152. Simultaneously, the second stop 1532 of the fourth gear 121 contacts the second limit position 15313 of the fifth gear 1431, causing them to begin rotating synchronously. Since the main shaft 131 and the fifth gear 1431 rotate synchronously, the main shaft 131 and the fourth gear 121 rotate synchronously, indicating normal cleaning.

[0165] Working condition 2: Driving element 160 reverses (retracts the rod -> overcurrent shutdown)

[0166] Gathering:

[0167] The second limiting portion 1532 of the fourth gear 121 is located at the second extreme position 15313 within the first limiting portion 1531 of the fifth gear 1431 and is generally located at a lower position. Since the first limiting portion 1531 has a vertical section at this position, the fifth gear 1431 can move up and down under force.

[0168] The motor rotates counterclockwise, driving the fifth gear 1431 to rotate clockwise. Due to the axial force component of the helical gears, the fifth gear 1431 floats axially upward, causing the first clutch 151 and the second clutch 152 to engage, resulting in synchronous rotation of the fifth gear 1431 and the first gear 1421. At this time, due to the speed difference between the fifth gear 1431 and the fourth gear 121 (the fourth gear 121 rotates slightly faster than the fifth gear 1431), the main shaft 131 and the fifth gear 1431 rotate synchronously. This means that the main shaft 131 and the fourth gear 121 begin to rotate relative to each other (assuming the rotation speed of the fourth gear 121 is v_h and the rotation speed of the main shaft 131 is v_l), causing the cleaning element 112 to retract.

[0169] Overcurrent stop:

[0170] The motor continues to rotate counterclockwise. When the second limiter 1532 of the fourth gear 121 contacts the first limit position 15312 of the fifth gear 1431 (and the gear reaches its limit), the fourth gear 121 is directly driven by the fifth gear 1431. This means that the fourth and fifth gears 121 and 1431 should be driven at the same speed, v_1. In other words, the fourth gear 121 is driven simultaneously by the fifth gear 1431 and gear 6, and their rotational speeds are inconsistent (v_h ≠ v_1), causing the transmission mechanism to jam and generate overcurrent.

[0171] At this time, the control chip can detect and control the shutdown.

[0172] In summary, through the side brush structure 100 provided in the embodiment of the present application, and by using a combination of helical gears and clutch teeth, the driving member 160 drives the brush rod 1122 to extend or retract during forward and reverse rotation, and the side brush structure 100 can automatically work normally after the brush rod 1122 is extended. After it is fully retracted, the side brush structure 100 will stop due to overcurrent. There is no need to add additional sensors or switches, and it is completely controlled by the forward and reverse rotation of the motor. The brush rod 1122 is made of a flexible material, such as a superelastic memory alloy, which can be repeatedly bent and deformed. It also has a certain degree of anti-bending ability, driving the bristles 1123 to extend or retract.

[0173] As shown in FIG1 and FIG2 , according to the second aspect of an embodiment of the present application, a cleaning device is proposed, comprising: a cleaning device body 10 ; and a side brush structure 100 such as any of the above technical solutions, the side brush structure being connected to the cleaning device body.

[0174] The cleaning device provided in the embodiment of the present application includes a cleaning device such as any of the above-mentioned technical solutions. Therefore, the cleaning device has all the beneficial effects of the side brush structure of the above-mentioned technical solutions, which will not be described in detail here.

[0175] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An edge brush structure, wherein, Comprising: A side brush body, the side brush body includes a housing and a cleaning member, and the housing accommodates at least a part of the cleaning member; A first rotating part, the first rotating part is connected to the housing; A second rotating part, the second rotating part is connected to the cleaning member; A transmission unit, the transmission unit is connected to the first rotating part and the second rotating part, and the transmission unit can drive the first rotating part and the second rotating part to rotate asynchronously, so that the cleaning member extends out of or retracts into the housing.

2. The side brush structure according to claim 1, wherein, The transmission unit includes: An input gear; A first transmission component, the first transmission component is used for connecting to the first rotating part; A second transmission member, the second transmission member is connected to the second rotating part; Wherein, the input gear is connected to the second transmission member, the first transmission component is used for connecting to the second transmission member, and the transmission ratio from the input gear to the first rotating part is not equal to the transmission ratio from the input gear to the second rotating part, so that the transmission unit can drive the first rotating part and the second rotating part to rotate asynchronously.

3. The side brush structure according to claim 2, wherein, Further comprising: A switching component, the switching component is connected to the first rotating part to switch the connection state of the first rotating part, so that the first rotating part is only driven by the first transmission component, or only driven by the second transmission member, or simultaneously driven by the first transmission component and the second transmission member.

4. The side brush structure according to claim 3, wherein, The first transmission component includes: A first gear, the first gear is used for connecting to the second transmission member; A second gear, the second gear meshes with the first gear; A by-pass shaft, one end of the by-pass shaft is connected to the second gear; A third gear, the other end of the by-pass shaft is connected to the third gear; Wherein, the first rotating part includes: a fourth gear, and the third gear meshes with the fourth gear.

5. The side brush structure according to claim 4, wherein, The second transmission member includes: A fifth gear, the fifth gear is connected to the second rotating part, and the input gear is connected to the fifth gear; Wherein, the first gear is used for connecting to the fifth gear.

6. The side brush structure according to claim 5, wherein, The switching component includes: A first clutch, the first clutch is connected to one side of the first gear; A second clutch, the second clutch is connected to the fifth gear; A limiting component, connected to the fourth gear and the fifth gear, enabling the fourth gear to rotate relative to the fifth gear, or enabling the fourth gear and the fifth gear to only rotate synchronously.

7. The side brush structure according to claim 6, wherein, The first gear and the fifth gear are stacked, the first clutch is used for meshing with the second clutch, and the mating teeth of the fifth gear and the input gear are helical teeth, so that when the input gear rotates, the fifth gear approaches or moves away from the first gear.

8. The side brush structure according to claim 6, wherein, In the case where the first gear is connected to the fifth gear through the first clutch and the second clutch, and the fourth gear can rotate relative to the fifth gear, the fourth gear is only driven by the first transmission component.

9. The side brush structure according to claim 6, wherein, When the first gear is connected to the fifth gear through the first clutch and the second clutch, and the fourth gear and the fifth gear can only rotate synchronously, the fourth gear is simultaneously driven by the first transmission component and the second transmission member, and the transmission unit is jammed.

10. The side brush structure according to claim 6, wherein, When the first gear is disengaged from the fifth gear, and the fourth gear and the fifth gear can only rotate synchronously, the fourth gear is only driven by the second transmission member.

11. The side brush structure according to claim 6, wherein, The limiting component includes: A first limiting portion, the first limiting portion is connected to the fifth gear, a slideway is formed on the first limiting portion, a first extreme position is formed at one end of the slideway, a second extreme position is formed at the other end of the slideway, a lifting chute is formed on the first limiting portion at the second extreme position, and the lifting chute communicates with the slideway; A second limiting portion, the second limiting portion is connected to the fourth gear.

12. The side brush structure according to claim 11, wherein, At least a part of the second limiting portion is connected to the first limiting portion. When the second limiting portion is at the first extreme position, the fourth gear and the fifth gear can only rotate synchronously, and the fifth gear cannot approach or move away from the first gear.

13. The side brush structure according to claim 11, wherein, At least a part of the second limiting portion is connected to the first limiting portion. When the second limiting portion is within the slideway, the fourth gear can rotate relative to the fifth gear, and the fifth gear cannot approach or move away from the first gear.

14. The side brush structure according to claim 11, wherein, At least a part of the second limiting portion is connected to the second extreme position. When the second limiting portion is within the slideway, the fourth gear and the fifth gear can only rotate synchronously, and the fifth gear can approach or move away from the first gear.

15. According to the side brush structure of claim 11, wherein, There are multiple slideways, and the first extreme position and the second extreme position are formed at both ends of each slideway; and / or An inclined surface is formed at the edge of the first extreme position and the second extreme position; and / or The second limiting portion includes a hook claw, and the grasping head of the hook claw is used for connecting to the first limiting portion.

16. The side brush structure according to any one of claims 1 to 15, wherein, It further includes: A driving member, the driving member is connected to the transmission unit.

17. The side brush structure according to claim 16, wherein, It further includes: A driving gear set, the output end of the driving member is connected to the driving gear set, and the output end of the driving gear set is connected to the transmission unit.

18. The side brush structure according to any one of claims 1 to 15, wherein, The second rotating portion includes: A main shaft, one end of the main shaft passes through the first rotating portion and is connected to the cleaning member; A boss, the boss is arranged at the other end of the main shaft; A mounting portion, the mounting portion is arranged on the second transmission member of the transmission unit, and the boss is connected to the second transmission member.

19. The side brush structure according to any one of claims 1 to 15, wherein, It further includes: A housing, the transmission unit, the first rotating portion and the second rotating portion are arranged within the housing.

20. The side brush structure according to any one of claims 1 to 15, wherein, The cleaning member includes: A brush head, the second rotating portion is connected to the brush head; A brush rod, the brush rod is connected to the brush head; Brush bristles, the brush bristles are connected to the brush rod, and the transmission unit can drive the first rotating portion and the second rotating portion to rotate asynchronously, so that the brush rod extends out or retracts via the housing.

21. The side brush structure according to claim 20, wherein, the brush rod is made of a flexible material.

22. A cleaning device, wherein, Comprising: a main body of a cleaning device; a side brush structure according to any one of claims 1 to 21, the side brush structure being connected to the main body of the cleaning device.

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