Side brush device and sweeping robot

Abstract

The utility model relates to a side brush device and a sweeping robot. The side brush device comprises a driving mechanism; the side brush mechanism comprises a brush arm and a transmission part, the transmission part is in transmission connection with the driving mechanism, and the brush arm is movably connected to the transmission part; wherein the driving mechanism rotates around a first direction, the side brush mechanism rotates along with the driving mechanism, and the brush arm moves to a first position in contact with the ground relative to the transmission part in the direction close to the ground; the driving mechanism rotates in the second direction opposite to the first direction, the side brush mechanism rotates along with the driving mechanism, and the brush arm moves to the second position separated from the ground relative to the transmission part in the direction away from the ground. The sweeping robot comprises the side brush device. According to the side brush device and the sweeping robot, the brush arm can move in the direction away from the ground relative to the transmission piece, namely, the brush arm is lifted to be separated from the ground, and the situation that the cleaned ground is secondarily polluted after the brush arm is polluted is improved.

Description

Technical Field

[0001] The present application relates to the technical field of intelligent robots, and particularly to a side brush device and a floor cleaning robot. Background Art

[0002] Currently, in floor cleaning robots, the floor cleaning robot uses a side brush device to clean the ground. However, most side brush devices are always in contact with the ground. When cleaning dirt in liquid form such as soy sauce and milk, it is easy to contaminate the side brush device. Moreover, when the robot passes over the ground that has been cleaned, the side brush device in contact with the ground is likely to contaminate the cleaned ground, affecting the cleaning effect of the ground. Summary of the Utility Model

[0003] Based on this, in view of the problem that the side brush device is easily contaminated when cleaning the ground, it is necessary to provide a side brush device and a floor cleaning robot.

[0004] A side brush device includes:

[0005] A driving mechanism;

[0006] A side brush mechanism including a brush arm and a transmission member, the transmission member being in transmission connection with the driving mechanism, and the brush arm being movably connected to the transmission member;

[0007] Wherein, the driving mechanism rotates around a first direction, the side brush mechanism rotates with the driving mechanism, and the brush arm moves relative to the transmission member towards the direction close to the ground to a first position in contact with the ground;

[0008] The driving mechanism rotates around a second direction opposite to the first direction, the side brush mechanism rotates with the driving mechanism, and the brush arm moves relative to the transmission member towards the direction away from the ground to a second position separated from the ground.

[0009] For the above side brush device, when the driving mechanism rotates, the side brush mechanism rotates with the driving mechanism, and the brush arm moves relative to the transmission member. Different rotation directions of the driving mechanism will result in different moving directions of the transmission member, thereby realizing the lowering or lifting of the brush arm, which is convenient to operate; when the brush arm moves to contact the ground, it can enable the brush arm to normally clean the ground; when the brush arm is lifted to be separated from the ground, it can reduce the probability of the brush arm being contaminated by cleaning dirt in liquid form (such as soy sauce and milk), and improve the situation of secondary contamination of the cleaned ground due to the contamination of the brush arm.

[0010] In one embodiment, the driving mechanism rotates around a first direction, and the side brush mechanism rotates with the driving mechanism. At the same time, the transmission member moves in a direction close to the ground, and drives the brush arm to move in a direction close to the ground relative to the transmission member; the driving mechanism rotates around the second direction, the side brush mechanism rotates with the driving mechanism, and at the same time, the transmission member moves in a direction away from the ground, and drives the brush arm to move in a direction close to the ground relative to the transmission member.

[0011] In one embodiment, a transmission groove is provided on the transmission member, and the brush arm is provided with an extending portion that is matingly connected to the transmission groove; when the transmission member moves in a direction close to the ground, the extending portion flips in the transmission groove until the brush arm is in the first position; when the transmission member moves in a direction away from the ground, the extending portion flips in the transmission groove until the brush arm is in the second position.

[0012] In one embodiment, the groove wall of the transmission groove includes a first abutting surface and a second abutting surface whose height is higher than that of the first abutting surface. When the extending portion flips to closely abut against the first abutting surface, the brush arm is in the first position; when the extending portion flips to closely abut against the second abutting surface, the brush arm is in the second position.

[0013] In one embodiment, the number of the transmission grooves and the brush arms is at least two, and at least one transmission groove is correspondingly provided for each brush arm, and the transmission grooves are evenly distributed on the circumferential side of the transmission member.

[0014] In one embodiment, the brush arm includes a connecting arm and a brush. The brush is provided at one end of the connecting arm, and the extending portion protrudes from the end of the connecting arm away from the brush.

[0015] In one embodiment, the side brush mechanism further includes a fitting. The fitting has a cavity, the transmission member is received in the cavity, and the brush arm is movably connected to the transmission member and at least partially extends out of the cavity.

[0016] In one embodiment, a limiting groove is provided in the cavity, and a limiting rib protrudes from the groove wall of the limiting groove. At least a part of the brush arm is inserted into the limiting groove and abuts against the limiting rib.

[0017] In one embodiment, the fitting further has a first clamping portion, and the driving mechanism has a second clamping portion. The second clamping portion is clamped with the first clamping portion to fix the fitting to the driving mechanism.

[0018] In one embodiment, one of the first engaging portion and the second engaging portion is an engaging plate, and the other of the first engaging portion and the second engaging portion is a slot.

[0019] In one embodiment, the driving mechanism includes a driving member, a first gear, and a second gear. The second gear is fixedly connected to the transmission member. The second gear and the first gear are helically meshed. The driving member is connected to the first gear. Wherein, when the driving member rotates, it drives the first gear to rotate, and through meshing transmission, the second gear rotates and moves, and the transmission member rotates and moves along with the second gear.

[0020] In one embodiment, a transmission fixing groove adapted to the second gear is provided on the top side of the transmission member.

[0021] A floor cleaning robot includes the above-mentioned side brush device.

[0022] For the above-mentioned floor cleaning robot, the brush arm can move away from the ground relative to the transmission member, that is, the brush arm is lifted to be separated from the ground, which can reduce the probability of the brush arm being contaminated by dirt in the form of liquid (such as soy sauce, milk), and improve the situation of secondary contamination of the cleaned ground due to the contamination of the brush arm. Description of the Drawings

[0023] Figure 1 It is a cross-sectional view of the side brush device in some embodiments, where the brush arm is in the first position.

[0024] Figure 2 It is a cross-sectional view of the side brush device in some embodiments, where the brush arm is in the second position.

[0025] Figure 3 For Figure 2 The partial enlarged view of the A position of the shown side brush device.

[0026] Figure 4 It is an axonometric view of the side brush mechanism in some embodiments, where the brush arm is in the first position.

[0027] Figure 5 It is an axonometric view of the side brush mechanism in some embodiments, where the brush arm is in the second position.

[0028] Figure 6 It is an exploded view of the side brush mechanism in some embodiments.

[0029] Figure 7 For Figure 6 The schematic diagram of the transmission member in the shown side brush mechanism.

[0030] Figure 8 For Figure 6 The schematic diagram of the mating part in the shown side brush mechanism.

[0031] Reference numerals:

[0032] 10. Driving mechanism; 10a. Second clamping portion; 11. Driving member; 12. First gear; 13. Second gear; 14. Gearbox; 15. Fastener; 20. Side brush mechanism; 300. Brush arm; 310. Extension portion; 320. Connecting arm; 330. Brush; 400. Transmission member; 410. Transmission groove; 411. First abutting surface; 412. Second abutting surface; 413. Transmission fixing groove; 500. Fitting member; 501. Cavity; 502. Limiting groove; 503. Limiting rib; 504. First clamping portion; 510. First fitting portion; 520. Second fitting portion. Detailed implementation manners

[0033] In order to make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe in detail the specific implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0034] In the description of the present application, 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. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0035] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0036] In this application, unless otherwise clearly defined or limited, terms such as "initial", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] In this application, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal level than the second feature.

[0038] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0039] Please refer to Figure 1 , the side brush device in an embodiment includes a driving mechanism 10 and a side brush mechanism 20. The side brush mechanism 20 includes a brush arm 300 and a transmission member 400. The transmission member 400 is in transmission connection with the driving mechanism 10, and the brush arm 300 is movably connected to the transmission member 400.

[0040] Wherein, with reference to Figure 1 and Figure 4 , the driving mechanism 10 rotates around a first direction, the side brush mechanism 20 rotates with the driving mechanism 10, and the brush arm 300 moves relative to the transmission member 400 in a direction close to the ground to a first position in contact with the ground; with reference to Figure 2 and Figure 5 , the driving mechanism 10 rotates around a second direction opposite to the first direction, the side brush mechanism 20 rotates with the driving mechanism 10, and the brush arm 300 moves relative to the transmission member 400 in a direction away from the ground to a second position separated from the ground.

[0041] It should be noted that the side brush device is applied to an intelligent floor cleaning device (such as a floor cleaning robot), and the side brush device is used to clean the ground. When the intelligent floor cleaning device is in the cleaning state, the brush arm 300 needs to contact the ground to clean the ground; when the intelligent floor cleaning device is in a non-cleaning state (such as a mopping state), the brush arm 300 needs to be away from the ground to improve the situation where the brush arm 300 is contaminated by dirt in the form of liquid (such as soy sauce and milk).

[0042] With reference to Figure 1 and Figure 4 , when the driving mechanism 10 rotates in the first direction, under the driving action of the transmission member 400, the entire side brush mechanism 20 rotates with the driving mechanism 10, and the brush arm 300 moves relative to the transmission member 400 in the direction close to the ground until the brush arm 300 moves to the first position; with reference to Figure 2 , Figure 3 and Figure 5 , when the driving mechanism 10 rotates in the second direction, under the driving action of the transmission member 400, the entire side brush mechanism 20 rotates with the driving mechanism 10, and the brush arm 300 moves relative to the transmission member 400 in the direction away from the ground until the brush arm 300 moves to the second position.

[0043] For the above side brush device, when the driving mechanism 10 rotates, the side brush mechanism 20 rotates with the driving mechanism 10, and the brush arm 300 moves relative to the transmission member 400. Different rotation directions of the driving mechanism 10 will result in different moving directions of the transmission member 400, thereby realizing the lowering or lifting of the brush arm 300, and the operation is convenient; when the brush arm 300 moves to contact the ground, the brush arm 300 can normally clean the ground; when the brush arm 300 is lifted to be separated from the ground, the probability of the brush arm 300 being contaminated by dirt in the form of liquid (such as soy sauce and milk) can be reduced, and the situation of secondary contamination of the cleaned ground due to the contamination of the brush arm 300 can be improved.

[0044] In this embodiment, the first direction is one of the clockwise direction or the counterclockwise direction. For example, when the first direction is the clockwise direction, the second direction is the counterclockwise direction; when the first direction is the counterclockwise direction, the second direction is the clockwise direction.

[0045] In this embodiment, the transmission member 400 is in transmission connection with the driving mechanism 10, that is: the transmission member 400 is connected to a certain component of the driving mechanism 10, and the transmission member 400 can rotate and / or move under the drive of the driving mechanism 10.

[0046] Specifically, please refer to Figure 1 and Figure 4, the driving mechanism 10 rotates about the first direction, the side brush mechanism 20 rotates with the driving mechanism 10, and at the same time, the transmission member 400 moves in the direction close to the ground, and the transmission brush arm 300 moves in the direction close to the ground relative to the transmission member 400; refer to Figure 2 and Figure 5 , the driving mechanism 10 rotates about the second direction, the side brush mechanism 20 rotates with the driving mechanism 10, and at the same time, the transmission member 400 moves in the direction away from the ground, and the transmission brush arm 300 moves in the direction close to the ground relative to the transmission member 400.

[0047] It can be understood that regardless of whether the driving mechanism 10 rotates about the first direction or the second direction, the side brush mechanism 20 rotates with the driving mechanism 10. At the same time, the transmission member 400 moves with the driving mechanism 10, and the transmission brush arm 300 moves relative to the transmission member 400. Among them, different rotation directions of the driving mechanism 10 will cause different moving directions of the transmission member 400, so as to realize the lowering or lifting of the brush arm 300.

[0048] In this embodiment, the transmission member 400 is connected to a certain component of the driving mechanism 10. When the driving mechanism 10 rotates, the side brush mechanism 20 rotates with the driving mechanism 10. At the same time, it moves with a certain component of the driving mechanism 10, and the transmission member 400 moves with a certain component of the driving mechanism 10, so that the transmission brush arm 300 moves relative to the transmission member 400. That is, during the lowering or lifting of the brush arm 300, some components move while the driving mechanism 10 rotates.

[0049] Please refer to Figure 2 and Figure 3 , a transmission groove 410 is provided on the transmission member 400, and the brush arm 300 is provided with an extending portion 310 that is engaged with the transmission groove 410. When the transmission member 400 moves in the direction close to the ground, the extending portion 310 flips in the transmission groove 410 until the brush arm 300 is located at the first position; when the transmission member 400 moves in the direction away from the ground, the extending portion 310 flips in the transmission groove 410 until the brush arm 300 is located at the second position.

[0050] It should be noted that when the driving mechanism 10 rotates about the first direction, under the driving action of the transmission member 400, the side brush mechanism 20 as a whole rotates with the driving mechanism 10, and the transmission member 400 moves in the direction close to the ground, and the extending portion 310 flips in the transmission groove 410 until the brush arm 300 moves to the first position, and the first position is the limit position where the brush arm 300 descends; when the driving mechanism 10 rotates about the second direction, under the driving action of the transmission member 400, the side brush mechanism 20 as a whole rotates with the driving mechanism 10, and the transmission member 400 moves in the direction away from the ground, and the extending portion 310 flips in the transmission groove 410 until the brush arm 300 moves to the second position, and the second position is the limit position where the brush arm 300 ascends.

[0051] In this embodiment, the protruding portion 310 is cylindrical, and the groove wall of the transmission groove 410 is a smooth surface to facilitate the flipping of the protruding portion 310 within the transmission groove 410. In other embodiments, the protruding portion 310 may also be elliptical cylindrical or have other shapes.

[0052] In this embodiment, the number of the protruding portions 310 is not limited to one. When the number of the protruding portions 310 is at least two, the protruding portions 310 may be spaced apart along the extending direction of the brush arm 300.

[0053] Specifically, please refer to Figure 6 and Figure 7 , the groove wall of the transmission groove 410 includes a first abutting surface 411 and a second abutting surface 412 whose height is higher than that of the first abutting surface 411. When the protruding portion 310 is flipped to abut tightly against the first abutting surface 411, the brush arm 300 is in the first position; when the protruding portion 310 is flipped to abut tightly against the second abutting surface 412, the brush arm 300 is in the second position.

[0054] It can be understood that the height direction is the Figure 6 shown X direction. The first abutting surface 411 and the second abutting surface 412 are located at different height positions, and the height of the second abutting surface 412 is higher than that of the first abutting surface 411. When the transmission member 400 moves in the direction close to or away from the ground, the protruding portion 310 flips within the transmission groove 410, wherein the flipping rotates with the side away from the central axis of the transmission member 400 as an approximate center of the circle to realize the lowering or lifting of the brush arm 300.

[0055] For example, when the brush arm 300 is in the first position, the protruding portion 310 abuts against the first abutting surface 411; as the brush arm 300 is gradually lifted, the protruding portion 310 continues to flip within the transmission groove 410 until the protruding portion 310 is flipped to abut tightly against the second abutting surface 412. At this time, the brush arm 300 is lifted to the limit position and the brush arm 300 is in the second position.

[0056] In this embodiment, the transmission groove 410 is a groove that is generally isosceles trapezoidal in cross-section in its radial direction, and the length of the transmission groove 410 on the side close to the central axis of the transmission member 400 is less than the length of the transmission groove 410 on the side away from the central axis of the transmission member 400. In other embodiments, the transmission groove 410 may also have other shapes, as long as the flipping of the protruding portion 310 within the transmission groove 410 can realize the lowering or lifting of the brush arm 300.

[0057] In this embodiment, both the first abutting surface 411 and the second abutting surface 412 are of a flat structure, and the protruding portion 310 is cylindrical. In other embodiments, the first abutting surface 411 and the second abutting surface 412 may also be of an arc surface structure.

[0058] More specifically, please refer toFigure 6 and Figure 7 The number of the transmission grooves 410 and the brush arms 300 is at least two, and each brush arm 300 is correspondingly provided with at least one transmission groove 410. Each transmission groove 410 is evenly distributed on the circumferential side of the transmission member 400.

[0059] In this embodiment, the transmission member 400 is cylindrical, and each transmission groove 410 is arranged on the circumferential surface of the transmission member 400 and is evenly spaced. Each transmission groove 410 can be evenly spaced, which is beneficial to the stability of the overall structure of the side brush mechanism 20.

[0060] In this embodiment, the number of the transmission grooves 410 and the brush arms 300 is at least two, and the transmission grooves 410 and the brush arms 300 are arranged in one-to-one correspondence, that is, each brush arm 300 is correspondingly provided with one transmission groove 410, which is beneficial to improving the cleaning efficiency of the brush arm 300.

[0061] In this embodiment, the sizes and shapes of the transmission grooves 410 are completely the same, which is convenient for the production and processing of the transmission member 400. In other embodiments, the sizes and shapes of the transmission grooves 410 can also be different to meet actual use requirements.

[0062] Please refer to Figure 6 , the brush arm 300 includes a connecting arm 320 and a brush 330. The brush 330 is arranged at one end of the connecting arm 320, and the protruding part 310 protrudes from the end of the connecting arm 320 far away from the brush 330.

[0063] It can be understood that the brush 330 and the protruding part 310 are respectively located at both ends of the connecting arm 320, which can clean the ground and at the same time does not prevent the lifting of the brush arm 300.

[0064] In this embodiment, the connecting arm 320 is made of plastic, and the brush 330 is made of an elastic material such as rubber. The elastic material and the plastic can be fixed by insert injection molding. In other embodiments, the connecting arm 320 and the brush 330 can also be made of other materials and processes.

[0065] Further, please refer to Figure 2 and Figure 8 , the side brush mechanism 20 further includes a fitting 500. The fitting 500 has a cavity 501, the transmission member 400 is received in the cavity 501, and the brush arm 300 is movably connected to the transmission member 400 and at least partially penetrates out of the cavity 501.

[0066] Here, it should be noted that one end of the brush arm 300 is received in the cavity 501 and movably connected to the transmission member 400, and the other end of the brush arm 300 at least partially penetrates out of the cavity 501, so as to facilitate the brush arm 300 to clean the ground and improve the space utilization rate of the fitting 500 at the same time.

[0067] Specifically in this embodiment, refer to Figure 2 and Figure 8 , the fitting 500 is a component in the appearance structure of the side brush mechanism 20. The fitting 500 includes a first fitting portion 510 and a second fitting portion 520. The first fitting portion 510 and the second fitting portion 520 cover each other and form a cavity 501. Among them, the first fitting portion 510 and the second fitting portion 520 can be of an integral structure, for example, integrally formed by injection molding or casting, with good integrity and high structural strength; or, the first fitting portion 510 and the second fitting portion 520 can also be of a split structure, for example, fixed by plugging, clamping or screwing.

[0068] In this embodiment, the fitting 500 is cylindrical, and correspondingly, the cavity 501 is also a cylindrical cavity. In other embodiments, the fitting 500 can also be prismatic or of other irregular shapes, and correspondingly, the cavity 501 is also a prismatic cavity or a cavity of other irregular shapes.

[0069] Please refer to Figure 2 and Figure 8 , a limiting groove 502 is provided in the cavity 501, and limiting ribs 503 are protruded from the groove wall of the limiting groove 502. At least a part of the brush arm 300 is inserted into the limiting groove 502 and abuts against the limiting ribs 503.

[0070] It can be understood that one end of the brush arm 300 is received in the cavity 501 and is movably connected to the transmission member 400. The part of the brush arm 300 received in the cavity 501 is inserted into the limiting groove 502 and abuts against the limiting ribs 503. In this way, the part of the brush arm 300 received in the cavity 501 is limited by the limiting groove 502, and at the same time, it can avoid direct contact between the brush arm 300 and the groove wall of the limiting groove 502 to generate hard friction.

[0071] In this embodiment, the part of the brush arm 300 received in the cavity 501 is cylindrical, and correspondingly, the limiting groove 502422 is also a cylindrical groove. In other embodiments, the part of the brush arm 300 received in the cavity 501 can also be prismatic or of other irregular shapes, and correspondingly, the limiting groove 502 is also prismatic or of other irregular shapes.

[0072] In this embodiment, the limiting ribs 503 are protruded from the groove wall of the limiting groove 502, and the shape of the limiting ribs 503 is adapted to the shape of the limiting groove 502. The number of the limiting ribs 503 is not limited to one. When the number of the limiting ribs 503 is at least two, the limiting ribs 503 can be arranged side by side and spaced apart in the limiting groove 502.

[0073] Further, please refer to Figure 2 and Figure 8, the fitting 500 further has a first latching portion 504, and the driving mechanism 10 has a second latching portion 10a. The second latching portion 10a is latched with the first latching portion 504 so that the fitting 500 is fixed to the driving mechanism 10.

[0074] It should be noted that the driving mechanism 10 includes a gear set and a gearbox 14 for housing the gear set. The transmission member 400 is connected to the gear set. The gearbox 14 has a second latching portion 10a. Through the latching cooperation between the second latching portion 10a and the first latching portion 504, the fitting 500 is fixed to the gearbox 14 of the driving mechanism 10, so that when the transmission member 400 moves up and down with the gear set, the fitting 500 always remains stationary.

[0075] In this embodiment, the number of the second latching portions 10a and the first latching portions 504 is not limited to one. The number of the second latching portions 10a and the first latching portions 504 can be at least two, and the second latching portions 10a and the first latching portions 504 are arranged correspondingly.

[0076] In this embodiment, the second latching portion 10a and the first latching portion 504 can be in various structural forms, as long as the latching cooperation can be achieved between the two.

[0077] Specifically in this embodiment, please refer to Figure 2 and Figure 8 , one of the first latching portion 504 and the second latching portion 10a is a latching plate, and the other of the first latching portion 504 and the second latching portion 10a is a latching groove.

[0078] It should be noted here that the latching plate has a closed ring structure, the latching groove is an annular groove, and the latching plate passes through the latching groove and is latched on the edge of the latching groove to achieve the latching cooperation between the second latching portion 10a and the first latching portion 504.

[0079] In this embodiment, the latching plate has a circular ring structure, and the latching groove is a circular ring groove. In other embodiments, the latching plate can also be of other shapes. Correspondingly, the latching groove can also be of other shapes to match the latching plate.

[0080] Please refer to Figure 2 , the driving mechanism 10 includes a driving member 11, a first gear 12 and a second gear 13. The second gear 13 is fixedly connected to the transmission member 400. The second gear 13 and the first gear 12 are helically meshed. The driving member 11 is connected to the first gear 12. Wherein, the driving member 11 rotates to drive the first gear 12 to rotate, and meshes and drives the second gear 13 to rotate and move, and the transmission member 400 rotates and moves with the second gear 13.

[0081] It should be noted that when the driving mechanism 10 rotates in the first direction, the first gear 12 rotates, meshes with and drives the second gear 13 to rotate and move. The whole side brush mechanism 20 rotates with the second gear 13, and the transmission member 400 moves in the direction close to the ground. The protruding portion 310 flips in the transmission slot 410 until the brush arm 300 moves to the first position, and the first position is the limit position where the brush arm 300 descends; when the driving mechanism 10 rotates in the second direction, the first gear 12 rotates, meshes with and drives the second gear 13 to rotate and move. The side brush mechanism 20 rotates with the second gear 13, and the transmission member 400 moves in the direction away from the ground. The protruding portion 310 flips in the transmission slot 410 until the brush arm 300 moves to the second position, and the second position is the limit position where the brush arm 300 ascends.

[0082] In this embodiment, the driving member 11 is a motor, and the output shaft of the motor is fixedly connected to the first gear 12. In other embodiments, the driving member 11 can also be other driving structures with a power output shaft.

[0083] In this embodiment, the number of the first gear 12 and the second gear 13 is not limited to one. The first gear 12 and the second gear 13 are helical gears in mesh, and the first gear 12 and the second gear 13 form a gear set to play a role in speed change. Optionally, both the first gear 12 and the second gear 13 are received in the gear box 14.

[0084] In this embodiment, the fastener 15 passes through the second gear 13 and the transmission member 400 to fixedly connect the second gear 13 and the transmission member 400. Optionally, the fastener 15 is a screw or a bolt.

[0085] Further, please refer to Figure 7 , a transmission fixing groove 413 adapted to the second gear 13 is provided on the top side of the transmission member 400.

[0086] It should be noted that the axle of the second gear 13 is inserted into the transmission fixing groove 413. When the second gear 13 rotates and moves, it can drive the transmission member 400 to rotate and move.

[0087] In this embodiment, the transmission fixing groove 413 is a hexagonal prism groove to be adapted to the axle of the second gear 13. In other embodiments, the transmission fixing groove 413 can also be in other shapes.

[0088] Please refer to Figure 1 , a floor sweeping robot in an embodiment includes the above-mentioned side brush device.

[0089] It should be noted that in addition to including the above-mentioned side brush device, the floor sweeping robot also includes other components such as a mopping device and a control device.

[0090] For the above-mentioned floor cleaning robot, the brush arm 300 can move away from the ground relative to the transmission member 400, which can reduce the probability of the brush arm 300 being contaminated by dirt in the form of liquid (such as soy sauce, milk), and improve the situation of secondary contamination of the cleaned ground due to the contamination of the brush arm 300.

[0091] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0092] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A side brush device, characterized in that: include: A driving mechanism (10); The side brush mechanism (20) comprises a brush arm (300) and a transmission member (400), wherein the transmission member (400) is transmission-connected to the driving mechanism (10), and the brush arm (300) is movably connected to the transmission member (400); a transmission groove (410) is provided on the transmission member (400), and the brush arm (300) is provided with a protruding portion (310) matched with the transmission groove (410); The driving mechanism (10) rotates in a first direction, the side brush mechanism (20) rotates along with the driving mechanism (10), and the brush arm (300) moves in a direction close to the ground relative to the transmission member (400) to a first position in contact with the ground; and when the transmission member (400) moves in a direction close to the ground, the extension portion (310) turns over in the transmission slot (410) until the brush arm (300) is located at the first position; The driving mechanism (10) rotates in a second direction opposite to the first direction, the side brush mechanism (20) rotates along with the driving mechanism (10), and the brush arm (300) moves in a direction away from the ground relative to the transmission member (400) to a second position separated from the ground; at the same time, when the transmission member (400) moves in a direction away from the ground, the extension portion (310) flips in the transmission groove (410) until the brush arm (300) is located at the second position.

2. The side brush device according to claim 1, characterized in that: The driving mechanism (10) rotates in a first direction, the side brush mechanism (20) rotates along with the driving mechanism (10), and at the same time the transmission member (400) moves in a direction close to the ground, and drives the brush arm (300) to move in a direction close to the ground relative to the transmission member (400); The driving mechanism (10) rotates about the second direction, and the side brush mechanism (20) rotates along with the driving mechanism (10), while the transmission member (400) moves in a direction away from the ground and drives the brush arm (300) to move in a direction close to the ground relative to the transmission member (400).

3. The side brush device according to claim 1, characterized in that: The groove wall of the transmission groove (410) comprises a first abutting surface (411) and a second abutting surface (412) having a height higher than the first abutting surface (411). When the extending portion (310) is turned over to be in close contact with the first abutting surface (411), the brush arm (300) is located at the first position; when the extending portion (310) is turned over to be in close contact with the second abutting surface (412), the brush arm (300) is located at the second position.

4. The side brush device according to claim 1, characterized in that: The number of the transmission grooves (410) and the number of the brush arms (300) are both at least two, and each brush arm (300) is correspondingly provided with at least one transmission groove (410), and the transmission grooves (410) are evenly distributed on the circumference of the transmission member (400).

5. The side brush device according to claim 1, characterized in that: The brush arm (300) comprises a connecting arm (320) and a brush (330), wherein the brush (330) is arranged at one end of the connecting arm (320), and the extension portion (310) is protrudingly arranged at one end of the connecting arm (320) away from the brush (330).

6. The side brush device according to claim 1, characterized in that: The side brush mechanism (20) further comprises a matching piece (500), wherein the matching piece (500) has a cavity (501), the transmission piece (400) is accommodated in the cavity (501), and the brush arm (300) is movably connected to the transmission piece (400) and at least partially extends out of the cavity (501).

7. The side brush device according to claim 6, characterized in that: A limiting groove (502) is provided in the containing cavity (501), a limiting rib (503) is convexly provided on the groove wall of the limiting groove (502), and the brush arm (300) is at least partially inserted in the limiting groove (502) and abuts against the limiting rib (503).

8. The side brush device according to claim 6, characterized in that: The matching piece (500) also has a first clamping portion (504), and the driving mechanism (10) has a second clamping portion (10a), and the second clamping portion (10a) is clamped with the first clamping portion (504) to fix the matching piece (500) to the driving mechanism (10).

9. The side brush device according to claim 8, characterized in that: One of the first clamping portion (504) and the second clamping portion (10a) is a clamping plate, and the other of the first clamping portion (504) and the second clamping portion (10a) is a clamping slot.

10. The side brush device according to claim 1, characterized in that: The driving mechanism (10) comprises a driving member (11), a first gear (12) and a second gear (13); the second gear (13) is fixedly connected to the transmission member (400); the second gear (13) and the first gear (12) are helical meshing; the driving member (11) is connected to the first gear (12); The driving member (11) rotates, driving the first gear (12) to rotate, meshing and transmitting the second gear (13) to rotate and move, and the transmission member (400) rotates and moves along with the second gear (13).

11. The side brush device according to claim 10, characterized in that: A transmission fixing groove (413) matched with the second gear (13) is provided on the top side of the transmission member (400).

12. A sweeping robot, characterized in that: It comprises a side brush device as described in any one of claims 1-11.

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