Sweeper

Abstract

The embodiment of the utility model provides a sweeper. The sweeper comprises a shell, a side brush structure, a transmission assembly, a cleaning part and a sensor structure. The shell is provided with a transmission cavity, and the transmission assembly is contained in the transmission cavity. The side brush structure is connected to the transmission assembly, and the side brush structure is rotationally connected to the bottom of the shell. The cleaning part and the side brush structure are arranged at the bottom of the shell at intervals; the sensor structure is connected to the shell, at least part of the sensor structure extends to the transmission cavity, and the sensor structure is used for stopping movement of the transmission assembly in the transmission cavity so that the side brush structure can stop rotating at the preset position; the side brush structure is provided with a plurality of extending brush strips, and at least one brush strip is located on the cleaning part at the preset position so as to clean the brush strips. The position of the transmission assembly is recognized through the sensor structure, accurate positioning of the side brush structure is achieved, the brush strip of the side brush structure is located in the cleaning area of the cleaning part and keeps still, and hair and the like wound on the brush strip are cleaned through the cleaning part.

Description

Technical Field

[0001] This application belongs to the field of robotics technology, specifically relating to a sweeping robot. Background Technology

[0002] With the development of science and technology and the improvement of people's living standards, sweeping machines can be used to automatically complete the cleaning of the ground, greatly reducing people's daily cleaning work. Therefore, sweeping machines have gradually become more and more widely used.

[0003] In existing technologies, sweeping machines are usually equipped with side brush structures for cleaning corners, furniture edges, etc. The side brush structure rotates to sweep the floor, pushing the debris towards the suction port of the sweeping machine to achieve floor cleaning.

[0004] However, during their research on existing technologies, the inventors discovered that the side brush structure is prone to tangling when cleaning hair, pet fur, or ropes, which affects the cleaning performance of the side brush structure and may even cause the motor to stall, resulting in damage to the device. Utility Model Content

[0005] In view of the above problems, this utility model is proposed to provide a sweeping machine that overcomes or at least partially solves the above problems.

[0006] To solve the above-mentioned technical problems, this application is implemented as follows:

[0007] This application provides a sweeping machine, which includes: a housing, a side brush structure, a transmission assembly, a cleaning unit, and a sensor structure;

[0008] The housing is provided with a transmission cavity, and the transmission assembly is housed in the transmission cavity;

[0009] The side brush structure is connected to the transmission assembly, and the side brush structure is rotatably connected to the bottom of the housing;

[0010] The cleaning section and the side brush structure are spaced apart at the bottom of the housing;

[0011] The sensor structure is connected to the housing, and at least a portion of the sensor structure extends into the transmission cavity. The sensor structure is used to stop the movement of the transmission component within the transmission cavity, so that the side brush structure stops rotating at a preset position.

[0012] The side brush structure has multiple extended brush strips, and at least one of the brush strips is located in the cleaning section at the preset position to clean the brush strips.

[0013] Optionally, the sensor structure includes a signal transceiver, and the transmission assembly is provided with a sensing element;

[0014] The signal transceiver is exposed in the transmission cavity, and the sensing element is positioned opposite to the signal transceiver at the preset position.

[0015] When the transceiver detects the sensing element, the sensor structure stops the movement of the transmission assembly within the transmission cavity.

[0016] Optionally, the sensor structure is a photoelectric sensor, the signal transceiver extends into the transmission cavity, the signal transceiver can receive and transmit light, and the sensing element is a light-shielding element protruding towards the signal transceiver;

[0017] At the preset position, the light-shielding member blocks the light emitted by the signal transceiver. The signal transceiver detects the light-shielding member and stops the movement of the transmission component in the transmission cavity.

[0018] Optionally, the sensor structure is a Hall sensor, and the sensing element is a magnetic element protruding toward the signal transceiver;

[0019] At the preset position, the Hall sensor detects the magnetic element and emits an electrical signal to stop the movement of the transmission assembly within the transmission cavity.

[0020] Optionally, the housing is provided with a snap-fit ​​part and an opening, and the sensor structure includes a sensor body and a signal transceiver connected to the sensor body;

[0021] The sensor body is snapped into the snap-fit ​​part, and the signal transceiver extends from the opening into the transmission cavity.

[0022] Optionally, the transmission assembly includes a first gear located within the transmission cavity and connected to the side brush structure, and the sensing element is disposed on the first gear.

[0023] Optionally, the sweeper also includes a controller, which is electrically connected to the sensor structure;

[0024] When the brush bar needs cleaning, the controller activates the sensor structure to stop the side brush structure from rotating at a preset position.

[0025] Optionally, the sweeper further includes a driver electrically connected to the controller and connected to the transmission assembly;

[0026] The side brush structure is vertically and vertically connected to the housing. When the side brush structure is in the preset position, the controller controls the driver to work. The driver drives the side brush structure to rise through the transmission component so that at least one of the brush strips is close to the cleaning part.

[0027] Optionally, when the sensor structure is activated, the driver drives the side brush structure to rotate in the first direction through the transmission assembly, so that the side brush structure is located at the preset position;

[0028] When the side brush structure is in the preset position, the driver drives the side brush structure to rotate in a second direction through the transmission assembly, so as to lift the side brush structure; wherein the second direction is opposite to the first direction.

[0029] Optionally, the transmission assembly includes a first gear and a second gear, both of which are located within the transmission cavity. The first gear is connected to the side brush structure, the second gear meshes with the first gear, and the second gear is connected to the output end of the driver.

[0030] Optionally, the side brush structure includes a side brush shell and a side brush body disposed within the side brush shell. The side brush shell is connected to the transmission assembly, and the side brush body is provided with a plurality of brush strips, the brush strips extending out of the side brush shell.

[0031] The side brush body rotates in the second direction and abuts against the upper surface inside the side brush shell, so that the side brush structure is raised close to the shell.

[0032] Optionally, the side brush body includes a sleeve and a side brush curved arm connected to the sleeve, and the brush strip is connected to the side brush curved arm;

[0033] When the side brush housing rotates in the second direction, the side brush arm bends and abuts against the upper surface inside the side brush housing.

[0034] Optionally, the side brush structure further includes a side brush shaft, the sleeve is sleeved on the side brush shaft, and the side brush curved arm has a bent portion at one end near the sleeve;

[0035] When the side brush housing rotates in the second direction, the bending portion bends so that the side brush arm abuts against the upper surface inside the side brush housing.

[0036] In this embodiment, the sweeper includes: a housing, a side brush structure, a transmission assembly, a cleaning section, and a sensor structure; the housing has a transmission cavity, and the transmission assembly is housed in the transmission cavity; the side brush structure is connected to the transmission assembly, and the side brush structure is rotatably connected to the bottom of the housing; the cleaning section is spaced apart from the side brush structure at the bottom of the housing; the sensor structure is connected to the housing, and at least a portion of the sensor structure extends into the transmission cavity, the sensor structure being used to stop the movement of the transmission assembly within the transmission cavity, so that the side brush structure stops rotating at a preset position; the side brush structure has multiple extended brush strips, and at the preset position, at least one brush strip is located in the cleaning section for cleaning the brush strip. In this way, when the side brush structure gets tangled with hair, pet fur, or rope, the sensor structure can identify the position of the transmission component. The transmission component is connected to the side brush structure, thereby achieving a more precise positioning of the rotation position of the side brush structure. This ensures that the brush bar of the side brush structure remains stationary within the cleaning area of ​​the cleaning unit, allowing the cleaning unit to effectively clean the hair, rope, and other debris tangled on the brush bar. This avoids affecting the cleaning performance of the side brush structure and reduces the risk of motor stalling and damage to components.

[0037] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0038] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0039] Figure 1 This is a cross-sectional structural schematic diagram of a sweeper according to an embodiment of this application;

[0040] Figure 2 This is one of the bottom views of a sweeping machine described in the embodiments of this application;

[0041] Figure 3 This is a second bottom view of a sweeping machine described in the embodiments of this application;

[0042] Figure 4 This is a schematic diagram of the sensor structure of a sweeping machine according to an embodiment of this application;

[0043] Figure 5 This is a front view of the sensor structure of a sweeping machine according to an embodiment of this application;

[0044] Figure 6 This is a top view of the sensor structure of a sweeping machine according to an embodiment of this application;

[0045] Figure 7 This is a schematic diagram of the structure of the first gear of a sweeper according to an embodiment of this application;

[0046] Figure 8 This is a top view of the first gear of a sweeping machine according to an embodiment of this application;

[0047] Figure 9 This is a bottom view of the first gear of a sweeping machine according to an embodiment of this application;

[0048] Figure 10 This is a top view of a partial structure of a sweeping machine according to an embodiment of this application;

[0049] Figure 11 This is one of the schematic diagrams of the side brush structure of a sweeper described in the embodiments of this application;

[0050] Figure 12 This is a second schematic diagram of the side brush structure of a sweeper described in the embodiments of this application;

[0051] Figure 13 This is the third schematic diagram of the side brush structure of a sweeper described in the embodiments of this application;

[0052] Figure 14 This is the fourth schematic diagram of the side brush structure of a sweeper described in the embodiments of this application;

[0053] Figure 15 This is an exploded structural diagram of the side brush structure of a sweeper according to an embodiment of this application;

[0054] Figure 16 This is a schematic diagram of the side brush body of a sweeper according to an embodiment of this application;

[0055] Figure 17 This is a flowchart illustrating the steps of a self-cleaning method for a sweeping machine as described in an embodiment of this application.

[0056] Reference numerals: 10 – Housing; 20 – Side brush structure; 30 – Cleaning section; 40 – Sensor structure; 11 – Transmission cavity; 21 – Brush bar; 41 – Signal transceiver; 51 – Sensor; 12 – Snap-fit ​​part; 13 – Opening; 42 – Sensor body; 52 – First gear; 60 – Driver; 53 – Second gear; 22 – Side brush housing; 23 – Side brush body; 24 – Sleeve; 25 – Side brush curved arm; 26 – Side brush shaft. Detailed Implementation

[0057] The embodiments of this utility model will now be described in detail. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0058] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0059] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0060] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0061] Reference Figures 1 to 16 The diagram shows a structural schematic of a sweeping machine according to an embodiment of this application. The sweeping machine may specifically include: a housing 10, a side brush structure 20, a transmission assembly, a cleaning unit 30, and a sensor structure 40.

[0062] The housing 10 is provided with a transmission cavity 11, and the transmission assembly is accommodated in the transmission cavity 11;

[0063] The side brush structure 20 is connected to the transmission assembly, and the side brush structure 20 is rotatably connected to the bottom of the housing 10;

[0064] The cleaning section 30 and the side brush structure 20 are disposed at a distance from each other at the bottom of the housing 10;

[0065] The sensor structure 40 is connected to the housing 10, and at least a portion of the sensor structure 40 extends into the transmission cavity 11. The sensor structure 40 is used to stop the movement of the transmission component within the transmission cavity 11, so that the side brush structure 20 stops rotating at a preset position.

[0066] The side brush structure 20 has a plurality of extended brush strips 21, and at least one of the brush strips 21 is located in the cleaning section 30 at the preset position to clean the brush strips 21.

[0067] In this embodiment, when the side brush structure 20 becomes entangled while cleaning hair, pet fur, or rope, the position of the transmission component can be identified by the sensor structure 40. The transmission component is connected to the side brush structure 20, thereby achieving a more precise positioning of the rotation position of the side brush structure 20. This ensures that the brush bar 21 of the side brush structure 20 remains stationary within the cleaning area of ​​the cleaning section 30, allowing the cleaning section 30 to effectively clean the hair, rope, and other debris entangled on the brush bar 21. This avoids affecting the cleaning performance of the side brush structure 20 and reduces the risk of motor stalling leading to component damage.

[0068] Specifically, in this embodiment, the sensor structure 40 has the characteristics of non-contact detection, fast response speed, and wide detection distance, thereby enabling the sensor structure 40 to achieve relatively accurate positioning and control of the transmission component and the side brush structure 20.

[0069] For example, in this embodiment, the cleaning unit 30 may be equipped with a roller brush to clean up easily tangled debris such as hair, pet hair, or rope on the brush strip 21. Alternatively, the cleaning unit 30 may be equipped with a suction structure to absorb and clean debris such as hair, pet hair, or rope on the brush strip 21. The specific type of the cleaning unit 30 is not limited in this embodiment.

[0070] In this embodiment, the side brush structure 20 is rotatably connected to the housing 10, and the brush strip 21 contacts the ground. The rotation of the side brush structure 20 causes the brush strip 21 to clean the ground. For example, the side brush structure 20 can be located at the edge of the bottom of the housing 10; alternatively, it can be located in the middle of the bottom of the housing 10. Similarly, the cleaning part 30 can be located in the middle of the bottom of the housing 10; alternatively, the side brush structure 20 can be located at the edge of the bottom of the housing 10, etc. The specific locations of the side brush structure 20 and the cleaning part 30 are not limited in this embodiment.

[0071] In the embodiments of this application, such as Figure 2 The diagram shows the brush strip 21 located in the cleaning section 30, where the cleaning section 30 performs self-cleaning on the brush strip 21. Figure 3 The diagram shows the brush strip 21 not located in the cleaning section 30. In this case, the cleaning section 30 does not perform self-cleaning on the brush strip 21. Figure 11 As shown, the side brush structure 20 is prone to entanglement of hair, ropes, and other debris. For example... Figure 12 As shown, the arrows indicate the cleaning direction of the cleaning unit 30 for cleaning hair, ropes, and other debris. The cleaning unit 30 can clean hair, ropes, and other debris from the brush strip 21 in the direction of the arrows. Figure 13 As shown, the arrows also indicate the cleaning direction of the cleaning unit 30 for cleaning hair, ropes, and other debris. At this time, the cleaning unit 30 cleans the hair, ropes, and other debris off the brush strip 21 in the direction of the arrows, thus achieving a better self-cleaning function for the brush strip 21.

[0072] For example, in this embodiment, the side brush structure 20 has multiple brush strips 21, such as two, three, five, or ten, etc., which can be set according to actual needs. This embodiment does not limit the specific number and setting method of the brush strips 21. The locking structure locks the side brush structure 20, which can make one of the brush strips 21 located in the cleaning section 30, or two of the brush strips 21 located in the cleaning section 30, or three of the brush strips 21 located in the cleaning section 30, etc., which can be set according to the setting range of the cleaning section 30 and cleaning needs, etc., and this embodiment does not limit this as well.

[0073] In this embodiment, for example, the number of side brush structures 20 can be one, two, or three, etc., and the number of cleaning parts 30 can be set to one. Multiple side brush structures 20 can be distributed at intervals around the cleaning parts 30 on the edge of the housing 10, so that one cleaning part 30 can simultaneously clean the brush strips 21 of multiple side brush structures 20. Furthermore, the number of cleaning parts 30 can also be set to two or three, etc., with one side brush structure 20 corresponding to one cleaning part 30, or two side brush structures 20 sharing one cleaning part 30. This embodiment does not limit the specific number and arrangement of the cleaning parts 30 and the side brush structures 20.

[0074] Specifically, in this embodiment, the transmission cavity 11 of the housing 10 is used to provide space for the transmission assembly and to connect the side brush structure 20 and the cleaning part 30. For example, the material of the housing 10 can be plastic, metal, etc., and this embodiment does not limit the specific material and shape of the housing 10.

[0075] Optionally, in this embodiment, the sensor structure 40 includes a signal transceiver 41, and the transmission assembly is provided with a sensor 51. The signal transceiver 41 is exposed in the transmission cavity 11, and the sensor 51 is positioned opposite to the signal transceiver 41 at a preset position. When the signal transceiver 41 detects the sensor 51, the sensor structure 40 stops the movement of the transmission assembly within the transmission cavity 11. This exposure of the signal transceiver 41 in the transmission cavity 11 allows for better recognition and sensing of the sensor 51 on the transmission assembly within the transmission cavity 11, improving recognition accuracy.

[0076] Optionally, in this embodiment, the sensor structure 40 is a photoelectric sensor, the transceiver 41 extends into the transmission cavity 11, the transceiver 41 can receive and transmit light, and the sensing element 51 is a light-shielding element protruding towards the transceiver 41. At a preset position, the light-shielding element blocks the light emitted by the transceiver 41, and the transceiver 41 detects the light-shielding element and stops the movement of the transmission assembly within the transmission cavity 11. Using a photoelectric sensor as the sensor structure 40 has advantages such as non-contact detection, fast response speed, and wide detection distance, and it has wide applications, is easy to implement, and is simple to operate.

[0077] For example, in this embodiment, the photoelectric sensor can be a common slotted sensor, which has advantages such as small size, fast response speed, and high sensitivity. Furthermore, the photoelectric sensor can also be of other types; this embodiment does not limit the specific type of photoelectric sensor. The signal transceiver 41 can be a receiver with a light source, capable of emitting and receiving light.

[0078] In this embodiment, the light-shielding element can be a light-shielding sheet or a light-shielding plate. The number of light-shielding elements can be one, two, or three, etc., and one light-shielding element can correspond to one or more positions of brush strips 21. The shape of the light-shielding element can be rectangular, fan-shaped, cylindrical, or trapezoidal, etc. This embodiment does not limit the specific type, number, or shape of the light-shielding elements and can be set according to actual needs.

[0079] In this embodiment, for example, when the light-shielding member is not in the light transmission path, the transceiver 41 does not detect the light-shielding member, and the transmission assembly can drive the side brush structure 20 to rotate. When the light-shielding member is in the light transmission path, it blocks the light emitted by the transceiver 41. At this time, the transceiver 41 detects the light-shielding member, and the photoelectric sensor can stop driving the transmission assembly through the controller, thereby causing the side brush structure 20 to be located at the preset position, and positioning the brush strip 21.

[0080] Optionally, in this embodiment, the sensor structure 40 is a Hall sensor, and the sensing element 51 is a magnetic element protruding towards the signal transceiver 41; at the preset position, the Hall sensor detects the magnetic element and emits an electrical signal to stop the movement of the transmission assembly within the transmission cavity 11. Using a Hall sensor as the sensor structure 40 has advantages such as high sensitivity, fast response, simple structure, and ease of calibration, and also has wide applications, is easy to implement, and is simple to operate.

[0081] For example, in this embodiment, the Hall sensor may include a control circuit and a Hall element. When a magnetic component is near the Hall element, the Hall element generates a Hall voltage under the influence of the magnetic field of the magnetic component. The Hall voltage signal can be amplified and processed by the control circuit, and an electrical signal linearly related to the magnetic field strength of the magnetic component is output. Then, the controller stops driving the transmission assembly based on the electrical signal emitted by the Hall sensor, causing the side brush structure 20 to be positioned at the preset position, thus positioning the brush strip 21.

[0082] Optionally, in this embodiment, the housing 10 is provided with a snap-fit ​​portion 12 and an opening 13. The sensor structure 40 includes a sensor body 42 and a signal transceiver 41 connected to the sensor body 42. The sensor body 42 is snapped into the snap-fit ​​portion 12, and the signal transceiver 41 extends from the opening 13 into the transmission cavity 11. Thus, the snap-fit ​​portion 12 ensures a relatively stable and reliable connection of the sensor structure 40 to the housing 10, and the opening 13 allows the signal transceiver 41 to extend into the transmission cavity 11 of the housing 10. This results in a simple structure, easy operation, and improved assembly efficiency.

[0083] For example, in this embodiment, a protruding snap-fit ​​portion 12 can be provided on the housing 10, and a snap-fit ​​interface can be provided on the sensor body 42. The snap-fit ​​portion 12 is snapped into the snap-fit ​​interface, so that the sensor structure 40 is stably and reliably connected to the housing 10. For example, two snap-fit ​​interfaces can be provided at each end of the sensor body 42, and two matching snap-fit ​​portions 12 can be provided on the housing 10 accordingly. In addition, the number of snap-fit ​​portions 12 can also be three or four, etc., which can be set according to actual needs. In this embodiment, the specific number of snap-fit ​​portions 12 is not limited.

[0084] Optionally, in this embodiment, the transmission assembly includes a first gear 52, which is located within the transmission cavity 11 and connected to the side brush structure 20. The sensing element 51 is disposed on the first gear 52. Specifically, the first gear 52 can be connected to the side brush shell 22 of the side brush structure 20. In this way, the first gear 52 achieves more efficient transmission of the side brush structure 20, reducing force transmission loss. Furthermore, the sensing element 51 is disposed on the first gear 52 to achieve more accurate positioning of the side brush structure 20.

[0085] Optionally, in this embodiment, the sweeper further includes a controller electrically connected to the sensor structure 40. When cleaning of the brush strips 21 is required, the controller activates the sensor structure 40 to stop the side brush structure 20 from rotating at a preset position. Thus, by activating the sensor structure 40 through the controller, the side brush structure 20 is stopped only when self-cleaning of its brush strips 21 is needed, achieving more precise control and avoiding interference with the normal floor cleaning operation of the side brush structure 20. For example, the sensor structure 40 may include a control circuit electrically connected to the controller.

[0086] Optionally, in this embodiment, the sweeper further includes a driver 60, which is electrically connected to the controller and connected to the transmission assembly. The side brush structure 20 is vertically connected to the housing 10. When the side brush structure 20 is in the preset position, the controller controls the driver 60 to operate. The driver 60 drives the side brush structure 20 to rise through the transmission assembly, so that at least one brush strip 21 approaches the cleaning section 30. Thus, by providing a relatively stable and reliable driving force, the driver 60 can drive the transmission assembly to move, causing the side brush structure 20 to rotate and clean the floor. When it is necessary to activate the sensor structure 40 to enable the side brush structure 20 to self-clean its brush strips 21, the controller can control the driver 60 to drive the transmission assembly to lift the side brush structure 20 away from the ground, preventing secondary contamination of dirt on the side brush structure 20 and allowing the cleaning section 30 to effectively clean the brush strips 21 of the side brush structure 20.

[0087] For example, in this embodiment, the sweeper can perform self-cleaning upon returning to the base station. When the side brush structure 20 is in a raised state, because it is far from the ground, it avoids secondary contamination from contact with dirt, allowing the cleaning unit 30 to effectively clean the brush strips 21 of the side brush structure 20. Furthermore, when the sweeper is cleaning liquid dirt or in single-mopping mode, even when the side brush structure 20 is not in use, it can be raised to clean its brush strips 21, improving cleaning efficiency.

[0088] In this embodiment of the application, for example, the driver 60 can be a motor or motor, etc. The output end of the driver 60 is connected to the transmission component and is used to drive the transmission component to rotate. In this embodiment of the application, the specific type of driver 60 is not limited.

[0089] Optionally, in this embodiment, when the sensor structure 40 is activated, the driver 60 drives the side brush structure 20 to rotate in a first direction via the transmission assembly, so that the side brush structure 20 is located at the preset position; when the side brush structure 20 is located at the preset position, the driver 60 drives the side brush structure 20 to rotate in a second direction via the transmission assembly, so that the side brush structure 20 is lifted; wherein, the second direction is opposite to the first direction. Thus, when the side brush structure 20 is performing normal floor cleaning operations, the controller can control the driver 60 to output a driving force to rotate in the first direction, driving the transmission assembly to move and causing the side brush structure 20 to rotate in the first direction until the sensor structure 40 detects the sensing element 51, causing the side brush structure 20 to stop at the preset position. Then, the controller can control the driver 60 to output a driving force to rotate in the second direction, driving the transmission assembly to rotate in the second direction, causing the side brush structure 20 to rotate in the second direction, lifting the side brush structure 20 away from the ground, so that the brush strip 21 is closer to the cleaning part 30, resulting in a better cleaning effect.

[0090] For example, in this embodiment, the first direction can be a clockwise rotation direction, and the second direction can be a counterclockwise rotation direction. Alternatively, the first direction can also be a counterclockwise rotation direction, and the second direction can be a clockwise rotation direction; this embodiment does not limit the first and second directions.

[0091] Optionally, in this embodiment, the transmission assembly includes a first gear 52 and a second gear 53. Both the first gear 52 and the second gear 53 are located within the transmission cavity 11. The first gear 52 is connected to the side brush structure 20, and the second gear 53 meshes with the first gear 52. The second gear 53 is also connected to the output end of the driver 60. Thus, the second gear 53 connects the transmission assembly to the driver 60, and the first gear 52 connects the transmission assembly to the side brush structure 20. The meshing transmission of the first gear 52 and the second gear 53 provides good transmission efficiency and reliability, and facilitates the design of the force transmission path based on the spatial layout within the housing 10.

[0092] Optionally, in this embodiment, the side brush structure 20 includes a side brush shell 22 and a side brush body 23 disposed within the side brush shell 22. The side brush shell 22 is connected to the transmission assembly. The side brush body 23 is provided with a plurality of brush strips 21, which extend out of the side brush shell 22. The side brush body 23 rotates in a second direction and abuts against the upper surface inside the side brush shell 22, causing the side brush structure 20 to rise closer to the housing 10. Thus, the side brush structure 20 is connected to the transmission assembly via the side brush shell 22. The rotation of the side brush shell 22 drives the side brush body 23 to rotate synchronously. The reverse rotation of the side brush body 23 in the second direction causes it to abut against the upper surface inside the side brush shell 22, causing the side brush structure 20 to rise closer to the housing 10 and away from the ground.

[0093] For example, in this embodiment, the side brush housing 22 has an opening 13 on its side, and the side brush arm 25 of the side brush body 23 extends out of the side brush housing 22 from the opening 13. For example, the side brush housing 22 may include an upper shell and a lower shell, which together form a receiving cavity. The central portion of the side brush body 23 is located within the receiving cavity, which facilitates assembly and improves assembly efficiency. Furthermore, the side brush housing 22 may be a one-piece structure or multiple separate structures; the specific type of the side brush housing 22 is not limited in this embodiment.

[0094] Optionally, in this embodiment, the side brush body 23 includes a sleeve 24 and a side brush curved arm 25 connected to the sleeve 24, and the brush strip 21 is connected to the side brush curved arm 25; when the side brush shell 22 rotates in the second direction, the side brush curved arm 25 bends and abuts against the upper surface inside the side brush shell 22. In this way, by rotating the side brush curved arm 25 in the opposite direction in the second direction to abut against the upper surface inside the side brush shell 22, the side brush structure 20 is lifted away from the ground.

[0095] For example, in the embodiments of this application, when the side brush structure 20 is performing a floor cleaning operation, the side brush arm 25 can extend downward toward the ground. When the side brush structure 20 is switched to the raised state, the side brush arm 25 is bent and folded to extend toward an approximately horizontal direction and abuts against the upper surface of the inner side of the side brush housing 22 to maintain the raised state.

[0096] Optionally, in this embodiment, the side brush structure 20 further includes a side brush shaft 26, with the sleeve 24 fitted onto the side brush shaft 26. The side brush curved arm 25 has a bent portion at one end near the sleeve 24. When the side brush housing 22 rotates in the second direction, the bent portion bends so that the side brush curved arm 25 abuts against the upper surface inside the side brush housing 22. The sleeve 24 is connected via the side brush shaft 26. The bent portion at the end of the side brush curved arm 25 near the sleeve 24 allows the side brush curved arm 25 to bend and flip at that end, resulting in a higher lifting height for the side brush curved arm 25.

[0097] For example, in the embodiments of this application, the bending part can be a hollow structure, and the shape of the hollow structure can be semi-circular, elliptical, rectangular, etc., which can be set according to the stress conditions. The specific shape of the bending part is not limited in the embodiments of this application.

[0098] Optionally, in this embodiment, the upper surface of the side brush housing 22 is provided with a protruding abutment portion, and the side brush curved arm 25 is bent and abuts against the abutment portion. In this way, the side brush curved arm 25 has a more stable and reliable abutment effect with the side brush housing 22 through the abutment portion, thereby improving the structural stability of the side brush structure 20 when it is in the raised state.

[0099] In this embodiment, the side brush arm 25 is exemplarily described as having a certain bending angle. When the side brush structure 20 is in a lowered state, the side brush arm 25 is bent downwards. When the sleeve 24 and the side brush shell 22 move relative to each other, the abutting portion on the side brush shell 22 presses down on the sleeve 24. For example, the abutting portion on the side brush shell 22 abuts downwards on the side brush arm 25, thereby causing the side brush arm 25 to fold downwards, and the bending direction of the side brush arm 25 changes. For example, the bending direction of the side brush arm 25 changes from downward bending to horizontal bending, thereby raising the height of the side brush arm 25. When the side brush arm 25 is in the raised state, the side brush structure 20 can be away from the ground. Therefore, when the cleaning robot is cleaning liquid dirt or performing single mopping mode, the side brush structure 20 can be folded away from the ground to avoid contact with dirt, improve the cleanliness of the side brush structure 20 and avoid secondary pollution during the cleaning process.

[0100] Optionally, in this embodiment, the abutting portion may include a first abutting inclined surface and a second abutting surface connected to the first abutting inclined surface. When the side brush housing 22 rotates, the first abutting inclined surface abuts against the bent portion of the side brush arm 25, causing the side brush arm 25 to rotate, thereby enabling the side brush structure 20 to clean the floor. When the side brush housing 22 moves relative to the sleeve 24, the first abutting inclined surface forms an abutting guide against the bent portion of the side brush arm 25, causing the bent portion of the side brush arm 25 to fold downwards, raising the height of the side brush structure 20. When the side brush structure 20 is raised to its highest point, the second abutting surface abuts against the bent portion of the side brush arm 25.

[0101] In this embodiment, the second abutting surface connects with the first abutting inclined surface, or the second abutting surface can smoothly transition with the first abutting inclined surface. For example, when the side brush shell 22 rotates, the first abutting inclined surface of the abutting part abuts against the bent part of the side brush arm 25, thereby driving the side brush structure 20 and the sleeve 24 to rotate synchronously through the abutting force applied by the abutting part to the bent part of the side brush arm 25, so that the side brush structure 20 keeps in contact with the ground and cleans the ground. During the cleaning process of the side brush structure 20, when encountering some large particles or garbage with a certain thickness, due to the above-mentioned abutting force, the side brush structure 20 remains pressed down and will not be turned up with the garbage, which can further improve the cleaning effect of the side brush structure 20.

[0102] For example, in this embodiment of the application, when the side brush shell 22 and the sleeve 24 move relative to each other, the first abutting slope on the abutting part forms an abutting guide for the bent portion of the side brush arm 25. This abutting guide can be understood as the abutting part and the bent portion of the side brush arm 25 maintaining contact while the bent portion moves along the first abutting slope under the action of the abutting force. Thus, during the relative movement, the abutting force on the bent portion of the side brush arm 25 gradually increases, causing the bent portion to be pressed down and fold downwards, thereby changing the bending direction of the side brush arm 25. The bending direction of the side brush arm 25 changes from downward bending to horizontal bending, thereby raising the height of the side brush arm 25 off the ground. Furthermore, when the side brush structure 20 is raised to its highest position, the bent portion of the side brush arm 25 abuts against the second abutting surface. The second contact surface is further provided with a chamfer at a position away from the first contact slope, and the chamfer is used to avoid the side brush structure 20.

[0103] In some alternative embodiments, the second abutting surface on the abutting portion can be extended along the circumferential length of the sleeve 24, thereby further increasing the relative rotation range between the side brush shell 22 and the sleeve 24, which facilitates the lifting or lowering control of the side brush structure 20.

[0104] For example, in some embodiments, the thickness of the bent portion of the side brush arm 25 in the radial direction of the sleeve 24, away from the center of the sleeve 24, is greater than the thickness near the center of the sleeve 24. In this embodiment, the thickness of the bent portion of the side brush arm 25 refers to the thickness of the bent portion of the side brush arm 25 in the axial direction of the sleeve 24. The center thickness of the bent portion of the side brush arm 25 in the radial direction of the sleeve 24 is relatively thin. This facilitates the abutting portion applying abutting force to the bent portion of the side brush arm 25, allowing the thinner area of ​​the bent portion of the side brush arm 25 to bend downwards, forming a foldable feature on the side brush arm 25. Furthermore, the bending direction of the side brush arm 25 can be changed by folding the bent portion of the side brush arm 25, thereby achieving a height increase of the side brush arm 25.

[0105] In some embodiments, the thickness of the bent portion of the side brush arm 25 near the center of the sleeve 24 is less than the thickness away from the center of the sleeve 24 along the radial direction. This allows the bent portion of the side brush arm 25 to form an arc-shaped groove or a V-shaped groove, etc., along the radial direction of the sleeve 24. The bent portion of the side brush arm 25 abuts against the abutting portion. This makes it easier for the bent portion of the side brush arm 25 to be pressed down, and causes deformation at the thinner center of the bent portion, causing the bent portion of the side brush arm 25 to fold downwards, thereby changing the bending direction of the side brush arm 25.

[0106] In one optional embodiment, the bending portion of the side brush arm 25 can be made of rubber material. In this embodiment, the side brush arm 25 can be made of rubber material with good deformation properties, thereby enabling the bending portion of the side brush arm 25 to have good deformation performance. This allows the bending portion to maintain structural stability during repeated deformation, thus improving the service life of the bending portion of the side brush arm 25.

[0107] The inner circumference of the side brush body 23 may be provided with a side brush limiting part, and the sleeve 24 is provided with a transmission limiting part. The side brush limiting part cooperates with the transmission limiting part to limit the side brush body 23 along the radial direction of the sleeve 24.

[0108] In this embodiment, a side brush limiting portion is provided on the inner circumference of the side brush body 23, and a corresponding transmission limiting portion is provided on the sleeve 24. In some embodiments, the side brush limiting portion can be a limiting groove, and the transmission limiting portion can be a limiting protrusion that matches the shape of the limiting groove. In other embodiments, the side brush limiting portion can be a limiting protrusion, and the transmission limiting portion can be a limiting groove that matches the shape of the limiting protrusion. Thus, when the side brush body 23 is sleeved on the sleeve 24, the side brush limiting portion and the transmission limiting portion cooperate to limit the side brush body 23 radially along the sleeve 24.

[0109] For example, in this embodiment of the application, the sleeve 24 can be a plastic part. After the side brush body 23 is sleeved on the sleeve 24, the sleeve 24 is then injection molded a second time, so that the side brush body 23 can be limited along the axial direction of the sleeve 24.

[0110] In some optional embodiments, the number of side brush arms 25 can be at least two, and the at least two side brush arms 25 are distributed at equal angles about the central axis of the side brush body 23 in the horizontal circumferential direction. Those skilled in the art can determine the number of side brush arms 25 according to actual design requirements, and no further limitations are made here. As a preferred embodiment, the number of side brush arms 25 can be three.

[0111] In some optional embodiments, the side brush structure 20 further includes an elastic element sleeved on the sleeve 24. A first end of the elastic element is fixed to the side brush shell 22, and a second end of the elastic element is fixed to the sleeve 24, so that the side brush arm 25 can be folded back to its original position through the deformation recovery of the elastic element. When the side brush shell 22 rotates the side brush structure 20, the elastic element provides a torsional force to keep the abutting portion in contact with the side brush structure 20. When the side brush shell 22 and the side brush structure 20 move relative to each other, the torsional force of the elastic element increases, and the side brush structure 20 is folded back to its original position through the torsional recovery of the elastic element.

[0112] In this embodiment, the elastic element is sleeved on the sleeve 24, and its two ends are fixed to the sleeve 24 and the side brush shell 22, respectively. For example, the elastic element may include a torsion spring, with its first end fixed to the upper half of the side brush shell 22 and its second end fixed to the sleeve 24. Thus, an elastic connection between the sleeve 24 and the side brush shell 22 can be formed along the circumference of the sleeve 24 through the elastic element.

[0113] In other embodiments, the first end of the elastic element can be fixed to the lower half of the side brush housing 22, and the second end of the elastic element can be fixed to the sleeve 24. This allows an elastic connection to be formed between the sleeve 24 and the lower half of the side brush housing 22 along the circumference of the side brush drive component. When the abutting portion abuts against the side brush arm 25, causing the side brush arm 25 to rotate synchronously, and the side brush structure 20 is in a lowered state, the deformation and torsional force of the elastic element maintains the abutting portion against the side brush arm 25. This allows the side brush structure 20 to remain in contact with the ground, and the rotation of the side brush structure 20 performs ground cleaning.

[0114] When the side brush shell 22 is subjected to an external force and rotates relative to the sleeve 24, the elastic potential energy (also known as the deformation torsional force) of the elastic element increases, thereby increasing the abutting force of the abutting part on the side brush curved arm 25. The abutting part presses down on the side brush curved arm 25, causing the side brush curved arm 25 to fold downward.

[0115] When the side brush housing 22 drives the sleeve 24 to rotate synchronously again, under the torsional recovery action of the elastic element, the bent portion of the side brush arm 25 moves along the abutment portion, and the abutment force of the abutment portion on the bent portion of the side brush arm 25 gradually decreases, thereby restoring the deformation of the bent portion of the side brush arm 25. The bending direction of the side brush arm 25 is restored to a horizontal downward state. And through the deformation torsional force of the elastic element, the abutment portion and the side brush arm 25 are kept in contact, thereby allowing the side brush structure 20 to maintain contact with the ground, and the ground is cleaned by the rotation of the side brush structure 20.

[0116] In summary, the sweeping machine described in the embodiments of this application may include at least the following advantages:

[0117] In this embodiment, the sweeper includes: a housing, a side brush structure, a transmission assembly, a cleaning section, and a sensor structure; the housing has a transmission cavity, and the transmission assembly is housed in the transmission cavity; the side brush structure is connected to the transmission assembly, and the side brush structure is rotatably connected to the bottom of the housing; the cleaning section is spaced apart from the side brush structure at the bottom of the housing; the sensor structure is connected to the housing, and at least a portion of the sensor structure extends into the transmission cavity, the sensor structure being used to stop the movement of the transmission assembly within the transmission cavity, so that the side brush structure stops rotating at a preset position; the side brush structure has multiple extended brush strips, and at the preset position, at least one brush strip is located in the cleaning section for cleaning the brush strip. In this way, when the side brush structure gets tangled with hair, pet fur, or rope, the sensor structure can identify the position of the transmission component. The transmission component is connected to the side brush structure, thereby achieving a more precise positioning of the rotation position of the side brush structure. This ensures that the brush bar of the side brush structure remains stationary within the cleaning area of ​​the cleaning unit, allowing the cleaning unit to effectively clean the hair, rope, and other debris tangled on the brush bar. This avoids affecting the cleaning performance of the side brush structure and reduces the risk of motor stalling and damage to components.

[0118] Reference Figure 17 This document illustrates a flowchart of a self-cleaning method for a sweeping machine according to an embodiment of this application. The sweeping machine includes a housing 10, a side brush structure 20, a transmission assembly, a cleaning section 30, and a sensor structure 40. The housing 10 has a transmission cavity 11, the transmission assembly is housed in the transmission cavity 11, the side brush structure 20 is connected to the transmission assembly and rotatably connected to the bottom of the housing 10, the cleaning section 30 is spaced apart from the side brush structure 20 at the bottom of the housing 10, and the sensor structure 40 is connected to the housing 10, with at least a portion of the sensor structure 40 extending into the transmission cavity 11. The method includes:

[0119] Step 101: The sensor structure 40 is activated.

[0120] For example, in this embodiment, when the robot vacuum returns to the base station for self-cleaning, the sensor structure 40 can be activated by the controller. Alternatively, if hair becomes entangled in the brush strip 21 during the robot vacuum's cleaning process, the sensor structure 40 can also be activated by the controller; this embodiment does not limit this specific action.

[0121] Step 102: The sensor structure 40 identifies the position of the transmission component.

[0122] For example, in this embodiment of the application, the sensor structure 40 may be provided with a signal transceiver 41, and the transmission component may be provided with a sensor 51. When the signal transceiver 41 senses the sensor 51, the sensor structure 40 realizes the identification of the position of the transmission component.

[0123] In this embodiment of the application, for example, the sensor structure 40 can be a photoelectric sensor or a Hall sensor, etc., and its specific structure and working principle are as described above, and will not be repeated here as it is an embodiment of the application.

[0124] Step 103: The transmission component stops moving, and the side brush structure 20 stops rotating at a preset position; wherein, the side brush structure 20 has a plurality of extended brush strips 21, and at least one of the brush strips 21 is located in the cleaning part 30 at the preset position.

[0125] In this embodiment, when the side brush assembly stops rotating and is in a preset position, at least one of the brush strips 21 is in the cleaning area of ​​the cleaning section 30, so that the cleaning section 30 can clean the brush strips 21 more efficiently.

[0126] Step 104: The cleaning unit 30 cleans the brush strip 21.

[0127] For example, in this embodiment, the cleaning unit 30 may be equipped with a roller brush to clean easily tangled debris such as hair, pet hair, or rope on the brush strip 21. Alternatively, the cleaning unit 30 may be equipped with a suction structure to absorb and clean debris such as hair, pet hair, or rope on the brush strip 21. This embodiment does not limit the specific type of the cleaning unit 30 or its cleaning method.

[0128] Optionally, in this embodiment, the sweeper further includes a controller and a driver 60 electrically connected to the controller. The output of the driver 60 is connected to the transmission assembly. The sensor structure 40 is electrically connected to the controller, and the side brush structure 20 is vertically and elliptably connected to the housing 10. Before the step of the cleaning unit 30 cleaning the brush strip 21, the method may further include: the controller controlling the driver 60 to operate; the driver 60 driving the side brush structure 20 to rise, so that the brush strip 21 is closer to the cleaning unit 30. That is, before the cleaning unit 30 cleans the brush strip 21, the controller controls the driver 60 to start, so that the driver 60 drives the side brush structure 20 away from the ground through the transmission assembly, avoiding secondary contamination of the side brush structure 20 by dirt on the ground, achieving more effective cleaning of the brush strip 21, and achieving more precise control of the driver 60 through the controller.

[0129] In summary, the self-cleaning method for sweeping machines described in the embodiments of this application can include at least the following advantages:

[0130] In this embodiment, a self-cleaning method for a sweeping machine is applied to the sweeping machine, which includes: a housing, a side brush structure, a transmission assembly, a cleaning section, and a sensor structure. The housing has a transmission cavity, the transmission assembly is housed in the transmission cavity, the side brush structure is connected to the transmission assembly and rotatably connected to the bottom of the housing, the cleaning section is spaced apart from the side brush structure at the bottom of the housing, and the sensor structure is connected to the housing, with at least a portion of the sensor structure extending into the transmission cavity. The method includes: activating the sensor structure; the sensor structure identifying the position of the transmission assembly; the transmission assembly stopping its movement; and the side brush structure stopping its rotation at a preset position. The side brush structure has multiple extended brush strips, and at the preset position, at least one brush strip is located in the cleaning section; the cleaning section cleans the brush strip. In this way, when the side brush structure gets tangled with hair, pet fur, or rope, the sensor structure can identify the position of the transmission component. The transmission component is connected to the side brush structure, thereby achieving a more precise positioning of the rotation position of the side brush structure. This ensures that the brush bar of the side brush structure remains stationary within the cleaning area of ​​the cleaning unit, allowing the cleaning unit to effectively clean the hair, rope, and other debris tangled on the brush bar. This avoids affecting the cleaning performance of the side brush structure and reduces the risk of motor stalling and damage to components.

[0131] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example 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.

[0132] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A sweeping machine, characterized in that, The sweeper includes: a housing, a side brush structure, a transmission assembly, a cleaning unit, and a sensor structure; The housing is provided with a transmission cavity, and the transmission assembly is housed in the transmission cavity; The side brush structure is connected to the transmission assembly, and the side brush structure is rotatably connected to the bottom of the housing; The cleaning section and the side brush structure are spaced apart at the bottom of the housing; The sensor structure is connected to the housing, and at least a portion of the sensor structure extends into the transmission cavity. The sensor structure is used to stop the movement of the transmission component within the transmission cavity, so that the side brush structure stops rotating at a preset position. The side brush structure has multiple extended brush strips, and at least one of the brush strips is located in the cleaning section at the preset position to clean the brush strips.

2. The sweeper according to claim 1, characterized in that, The sensor structure includes a signal transceiver, and the transmission assembly is equipped with a sensing element; The signal transceiver is exposed in the transmission cavity, and the sensing element is positioned opposite to the signal transceiver at the preset position. When the transceiver detects the sensing element, the sensor structure stops the movement of the transmission assembly within the transmission cavity.

3. The sweeper according to claim 2, characterized in that, The sensor structure is a photoelectric sensor, the signal transceiver extends into the transmission cavity, the signal transceiver can receive and transmit light, and the sensing element is a light-shielding element protruding towards the signal transceiver. At the preset position, the light-shielding member blocks the light emitted by the signal transceiver. The signal transceiver detects the light-shielding member and stops the movement of the transmission component in the transmission cavity.

4. The sweeper according to claim 2, characterized in that, The sensor structure is a Hall sensor, and the sensing element is a magnetic element protruding toward the signal transceiver; At the preset position, the Hall sensor detects the magnetic element and emits an electrical signal to stop the movement of the transmission assembly within the transmission cavity.

5. The sweeper according to claim 2, characterized in that, The housing is provided with a snap-fit ​​part and an opening, and the sensor structure includes a sensor body and a signal transceiver connected to the sensor body; The sensor body is snapped into the snap-fit ​​part, and the signal transceiver is exposed through the opening.

6. The sweeper according to claim 2, characterized in that, The transmission assembly includes a first gear, which is located in the transmission cavity and connected to the side brush structure, and the sensing element is disposed on the first gear.

7. The sweeper according to any one of claims 1-6, characterized in that, The sweeper also includes a controller, which is electrically connected to the sensor structure; When the brush bar needs cleaning, the controller activates the sensor structure to stop the side brush structure from rotating at a preset position.

8. The sweeper according to claim 7, characterized in that, The sweeper also includes a driver, which is electrically connected to the controller and connected to the transmission assembly; The side brush structure is vertically and vertically connected to the housing. When the side brush structure is in the preset position, the controller controls the driver to work. The driver drives the side brush structure to rise through the transmission component so that at least one of the brush strips is close to the cleaning part.

9. The sweeper according to claim 8, characterized in that, When the sensor structure is activated, the driver drives the side brush structure to rotate in the first direction through the transmission assembly, so that the side brush structure is located at the preset position; When the side brush structure is in the preset position, the driver drives the side brush structure to rotate in a second direction through the transmission assembly, so as to lift the side brush structure; wherein the second direction is opposite to the first direction.

10. The sweeper according to claim 8, characterized in that, The transmission assembly includes a first gear and a second gear, both of which are located within the transmission cavity. The first gear is connected to the side brush structure, the second gear meshes with the first gear, and the second gear is connected to the output end of the driver.

11. The sweeper according to any one of claims 1-6, characterized in that, The side brush structure includes a side brush shell and a side brush body disposed within the side brush shell. The side brush shell is connected to the transmission assembly, and the side brush body is provided with a plurality of brush strips, which extend out of the side brush shell. The side brush body rotates in the second direction and abuts against the upper surface inside the side brush shell, so that the side brush structure is raised close to the shell.

12. The sweeper according to claim 11, characterized in that, The side brush body includes a sleeve and a side brush curved arm connected to the sleeve, and the brush strip is connected to the side brush curved arm; When the side brush housing rotates in the second direction, the side brush arm bends and abuts against the upper surface inside the side brush housing.

13. The sweeper according to claim 12, characterized in that, The side brush structure also includes a side brush shaft, the sleeve is sleeved on the side brush shaft, and the side brush curved arm has a bent part at one end near the sleeve; When the side brush housing rotates in the second direction, the bending portion bends so that the side brush arm abuts against the upper surface inside the side brush housing.

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