Side brush device and cleaning equipment

Abstract

The utility model relates to a side brush device and cleaning equipment. The side brush device comprises a first transmission set, a second transmission set, a cleaning assembly, a liftable driving gear and a clutch gear. The first transmission group and the second transmission group are respectively connected with a cleaning assembly, and the first transmission group and the second transmission group are configured to output driving force in opposite directions; the driving gear is meshed with the clutch gear and used for driving the clutch gear to rotate and ascend and descend, and the clutch gear is configured to move up and down between the first transmission set and the second transmission set so as to transmit power to the first transmission set or the second transmission set. According to the scheme provided by the invention, the control mode can be optimized, the compatibility is improved, and the function expansion of the cleaning equipment is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning equipment, in particular to a side brush device and a cleaning equipment. BACKGROUND

[0002] When the cleaning equipment cleans the surface to be cleaned, the movement of the cleaning assembly in the side brush device usually needs to be controlled.

[0003] In the related art, the rotation direction of the cleaning assembly is changed when the rotation direction of the motor output is changed, and the rotation direction of the cleaning assembly cannot be maintained alone, which leads to the rotation direction of the cleaning assembly being forced to change when the cleaning assembly needs to realize other movements such as lifting and swinging, and further leads to the control mode of the cleaning assembly being single and the compatibility being low, which is not conducive to the function expansion of the cleaning equipment. UTILITY MODEL CONTENT

[0004] To solve or partially solve the problems in the related art, the present application provides a side brush device and a cleaning equipment, which can optimize the control mode, improve the compatibility, and be conducive to the function expansion of the cleaning equipment.

[0005] The first aspect of the present application provides a side brush device, comprising:

[0006] a first transmission group, a second transmission group, a cleaning assembly, a liftable driving gear, and a clutch gear;

[0007] The first transmission group and the second transmission group are respectively connected to the cleaning assembly, and the directions of the driving forces output by the first transmission group and the second transmission group are opposite.

[0008] The driving gear is engaged with the clutch gear, and is used to drive the clutch gear to rotate and lift, and the clutch gear is configured to move up and down between the first transmission group and the second transmission group to transmit power to the first transmission group or the second transmission group.

[0009] In an embodiment, the driving gear comprises a first driving gear and a second driving gear, the first driving gear and the second driving gear are coaxially fixed as a whole, and the teeth are staggered.

[0010] The clutch gear comprises a first clutch gear and a second clutch gear; the first clutch gear and the second clutch gear are coaxially fixed as a whole, and the teeth are staggered.

[0011] The first driving gear is engaged with the first clutch gear, and the second driving gear is engaged with the second clutch gear.

[0012] In an embodiment, the lower end surface of the first driving gear is in abutment with the upper end surface of the second clutch gear, and the upper end surface of the second driving gear is in abutment with the lower end surface of the second clutch gear.

[0013] In an embodiment, the first clutch gear and / or the second clutch gear is provided with a clutch portion for coupling with or decoupling from the first transmission group and the second transmission group, respectively.

[0014] In an embodiment, the first transmission group and the second transmission group are arranged in a vertical direction and are formed with a clutch gap;

[0015] The two end surfaces of the first clutch gear are respectively provided with an upper clutch portion and a lower clutch portion, the second clutch gear is sleeved on the lower clutch portion, and the lower clutch portion extends out from the lower end surface of the second clutch gear.

[0016] The upper clutch portion is used for coupling with the first transmission group, and the lower clutch portion is used for coupling with the second transmission group; and the clutch gap is greater than the thickness of the first clutch gear and the second clutch gear in the vertical direction.

[0017] In an embodiment, the first clutch gear comprises a gear body and a fitting portion, the upper clutch portion is formed by extending from the upper end surface of the gear body; the fitting portion is formed by extending from the lower end surface of the gear body, the second clutch gear is sleeved on the fitting portion, and the lower clutch portion extends out from the lower end surface of the second clutch gear.

[0018] In an embodiment, the first transmission group comprises a first input gear, and the second transmission group comprises a second input gear, the first input gear and the second input gear are arranged in a vertical direction and are formed with the clutch gap;

[0019] The first input gear is fitted with the upper clutch portion, and the second input gear is fitted with the lower clutch portion.

[0020] In an embodiment, the upper clutch portion and / or the lower clutch portion is provided as a clamping protrusion.

[0021] In an embodiment, the first transmission group comprises gears, and the number of gears A = n;

[0022] The second transmission group comprises gears, and the number of gears B = n+1; n is a positive integer greater than or equal to 1.

[0023] The second aspect of the present application provides a cleaning device comprising the side brush device as described above.

[0024] The technical scheme provided by the application can have the following beneficial effects: the application sets a first transmission group, a second transmission group, a cleaning assembly, a liftable driving gear and a clutch gear; the first transmission group and the second transmission group are connected to the cleaning assembly respectively, and the first transmission group and the second transmission group are configured to output driving forces in opposite directions; the driving gear is engaged with the clutch gear, for driving the clutch gear to rotate and lift, and the clutch gear is configured to be movable up and down between the first transmission group and the second transmission group, so as to transmit power to the first transmission group or the second transmission group. By selecting the first transmission group or the second transmission group in combination through the clutch gear, the power of the driving gear is transmitted to the first transmission group or the second transmission group, and since the first transmission group and the second transmission group are configured to output driving forces in opposite directions, the cleaning assembly can realize power output in any direction when the driving gear rotates forward and reversely, the control scheme is increased, the control mode is optimized, the compatibility is improved, and the function expansion of the cleaning equipment is facilitated.

[0025] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory and are not restrictive of the application. BRIEF DESCRIPTION OF DRAWINGS

[0026] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which like reference characters refer to like parts throughout and in which:

[0027] Figure 1 is a structural schematic diagram of an edge brush device shown in the embodiment of the application;

[0028] Figure 2 is Figure 1 is a top view structural schematic diagram of the edge brush device shown;

[0029] Figure 3 is an exploded structural schematic diagram of a driving gear and a clutch gear shown in the embodiment of the application;

[0030] Figure 4 is a structural schematic diagram of a first clutch gear shown in the embodiment of the application;

[0031] Figure 5 is a system schematic block diagram of a cleaning equipment shown in the embodiment of the application.

[0032] 10, edge brush device; 100, cleaning assembly; 200, first transmission group; 210, first input gear; 300, second transmission group; 310, second input gear; 400, clutch gear; 410, first clutch gear; 411, upper clutch part; 412, lower clutch part; 413, gear body; 414, fitting part; 420, second clutch gear; 500, drive gear; 510, first drive gear; 520, second drive gear; 600, rotating shaft; 20, cleaning device. DETAILED DESCRIPTION

[0033] Embodiments of the present application will be described in more detail with reference to the drawings. Although the embodiments of the present application are shown in the drawings, it should be understood that the present application can be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0034] It should be understood that although the terms "first", "second", "third", etc. can be used in this application to describe various information, these information should not be limited by these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the present application. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0035] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like 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, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0036] Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] To solve the above problems, the embodiment of the present application provides a side brush device, which can optimize the control mode, improve the compatibility, and facilitate the function expansion of the cleaning equipment.

[0038] The technical solutions of the embodiment of the present application are described in detail below with reference to the drawings.

[0039] Reference Figure 1 and Figure 2 The embodiment provides a side brush device 10, which comprises a first transmission group 200, a second transmission group 300, a cleaning assembly 100, a liftable driving gear 500, and a clutch gear 400; the first transmission group 200 and the second transmission group 300 are connected to the cleaning assembly 100 respectively, and the first transmission group 200 and the second transmission group 300 are configured to output driving forces in opposite directions; the driving gear 500 is engaged with the clutch gear 400, and is used to drive the clutch gear 400 to rotate and lift, and the clutch gear 400 is configured to be capable of lifting between the first transmission group 200 and the second transmission group 300, so as to transmit power to the first transmission group 200 or the second transmission group 300.

[0040] The driving gear 500 is configured to be capable of rotating forward or reversely, for example, rotating clockwise or counterclockwise, so as to drive the clutch gear 400 to rotate counterclockwise or clockwise, and also drive the clutch gear 400 to lift, so that the clutch gear 400 can be matched with or separated from the first transmission group 200 or the second transmission group 300.

[0041] Since the output directions of the first transmission group 200 and the second transmission group 300 are opposite, the first transmission group 200 or the second transmission group 300 is selected by the clutch gear 400 to be combined, so that the same direction of power output can be realized when the driving gear 500 rotates forward and reversely, the control scheme is increased, the control mode is optimized, the compatibility is improved, and the function expansion of the cleaning equipment is facilitated.

[0042] For the convenience of description, it is assumed that the first transmission group 200 does not change the direction of power input when outputting power, and the second transmission group 300 is configured to be opposite to the first transmission group 200. For example, when the driving gear 500 rotates forward, the clutch gear 400 reversely rotates, if the clutch gear 400 is combined with the first transmission group 200, the output power direction of the first transmission group 200 is the same as the power input direction of the clutch gear 400, and then the cleaning assembly 100 reversely rotates, if the clutch gear 400 is combined with the second transmission group 300, the output power direction of the second transmission group 300 is opposite to the power input direction of the clutch gear 400, and then the cleaning assembly 100 rotates forward. At this time, if the driving gear 500 changes the rotation direction to reverse, in order to keep the rotation direction of the cleaning assembly 100 unchanged, the clutch gear 400 only needs to be switched from the first transmission group 200 to the second transmission group 300, or from the second transmission group 300 to the first transmission group 200.

[0043] Therefore, the embodiment can output positive or reverse power when the driving member rotates forward or reversely, thereby increasing the control scheme, optimizing the control mode of the cleaning assembly 100, improving the compatibility, and facilitating the functional expansion of the cleaning equipment.

[0044] In addition, in the prior art, the cleaning assembly 100 is generally controlled to rotate forward or reversely by the forward or reverse rotation of the motor. For example, to realize the obstacle avoidance of the upward and downward movement of the cleaning assembly 100, the forward rotation can also be used to control the downward movement of the cleaning assembly 100, and the reverse rotation can also be used to control the upward movement of the cleaning assembly 100. However, when the cleaning assembly 100 rotates forward, it can also need to move upward. However, due to the singularity of the power output, the cleaning assembly 100 can only move downward when it rotates forward, and cannot realize the upward and downward movement when it rotates forward or reversely. However, the side brush device 10 of the embodiment can adjust the output direction of the power according to the requirement, and can control the forward or reverse rotation of the cleaning assembly 100 when the driving gear 500 rotates forward or reversely.

[0045] In one of the embodiments, the side brush device 10 comprises a driving motor, which is used to output power to the driving gear 500 to drive the clutch gear 400 to rotate and move up and down.

[0046] Referring to Figure 3 and Figure 4 In one of the embodiments, the side brush device 10 comprises a rotating shaft 600, and the driving gear 500 is provided with a through hole in the axial direction; the rotating shaft 600 is arranged in the through hole and fixedly connected with the driving gear 500.

[0047] The rotating shaft 600 is arranged to be movable in the axial direction and rotatable around the axis. Since the rotating shaft 600 is arranged in the through hole and fixedly connected with the driving gear 500, when the rotating shaft 600 rotates around the axis and moves in the axial direction, the driving gear 500 rotates and moves synchronously with the rotating shaft 600, thereby driving the clutch gear 400 to rotate and move up and down.

[0048] The rotating shaft 600 can be connected with the driving motor and used to rotate and / or move up and down under the driving of the driving motor.

[0049] In one of the embodiments, the driving motor can be provided with two driving motors, which are respectively used to control the rotating and moving up and down of the driving shaft.

[0050] Referring to Figure 1 and Figure 3In one of the embodiments, the driving gear 500 comprises a first driving gear 510 and a second driving gear 520, which are coaxially fixed as a whole and have staggered teeth; the clutch gear 400 comprises a first clutch gear 410 and a second clutch gear 420, which are coaxially fixed as a whole and have staggered teeth; wherein the first driving gear 510 is engaged with the first clutch gear 410, and the second driving gear 520 is engaged with the second clutch gear 420.

[0051] The first driving gear 510 and the second driving gear 520 can have the same modulus and the same number of teeth, and the projections of the plurality of teeth in the axial direction are staggered; the first clutch gear 410 and the second clutch gear 420 can have the same modulus and the same number of teeth, and the projections of the plurality of teeth in the axial direction are staggered.

[0052] Since the first driving gear 510 and the second driving gear 520 are coaxially fixed as a whole, and the first clutch gear 410 and the second clutch gear 420 are coaxially fixed as a whole, when the first driving gear 510 is engaged with the first clutch gear 410 and the second driving gear 520 is engaged with the second clutch gear 420, the teeth of the first driving gear 510 will at least partially coincide with the teeth of the second clutch gear 420, and the teeth of the second driving gear 520 will at least partially coincide with the teeth of the first clutch gear 410. Thus, when the driving gear 500 moves up and down, the first driving gear 510 will abut against the second clutch gear 420, or the second driving gear 520 will abut against the first clutch gear 410, thereby achieving the up-and-down movement of the clutch gear 400.

[0053] Reference Figure 1 And Figure 3 In one of the embodiments, the lower end surface of the first driving gear 510 abuts against the upper end surface of the second clutch gear 420, and the upper end surface of the second driving gear 520 abuts against the lower end surface of the second clutch gear 420.

[0054] The first driving gear 510, the second driving gear 520, the first clutch gear 410, and the second clutch gear 420 each have an upper end surface and a lower end surface, the first driving gear 510 and the second driving gear 520 are arranged in sequence from top to bottom in the axial direction, and the first clutch gear 410 and the second clutch gear 420 are arranged in sequence from top to bottom in the axial direction.

[0055] Since the teeth of the first driving gear 510 and the teeth of the second clutch gear 420 at least partially coincide, and the teeth of the second driving gear 520 and the teeth of the first clutch gear 410 at least partially coincide, the toothed part of the lower end face of the first driving gear 510 will abut against the toothed part of the upper end face of the second clutch gear 420, and the toothed part of the upper end face of the second driving gear 520 will abut against the toothed part of the lower end face of the first clutch gear 410, so that when the driving gear 500 as a whole rises, the upper end face of the second driving gear 520 pushes the lower end face of the first clutch gear 410, and the clutch gear 400 as a whole rises, and when the driving gear 500 as a whole descends, the lower end face of the first driving gear 510 pushes the upper end face of the second clutch gear 420, and the clutch gear 400 as a whole descends, thereby achieving the lifting and lowering of the clutch gear 400.

[0056] In one of the embodiments, the first clutch gear 410 and / or the second clutch gear 420 are provided with a clutch part for being combined with or separated from the first transmission group 200 and the second transmission group 300 respectively.

[0057] For example, the upper end face of the first clutch gear 410 is provided with a clutch part, and the lower end face of the second clutch gear 420 is provided with a clutch part. For example, both end faces of the first clutch gear 410 or the second clutch gear 420 are respectively provided with a clutch part, as long as the clutch gear 400 can be combined with the first transmission group 200 and the second transmission group 300 respectively through the clutch part, which is not limited in the present embodiment.

[0058] Reference Figure 1 and Figure 4 In one of the embodiments, the first transmission group 200 and the second transmission group 300 are arranged in the vertical direction and form a clutch gap; the two end faces of the first clutch gear 410 are respectively provided with an upper clutch part 411 and a lower clutch part 412, and the second clutch gear 420 is sleeved on the lower clutch part 412, and the lower clutch part 412 extends out from the lower end face of the second clutch gear 420; wherein the upper clutch part 411 is used for being combined with the first transmission group 200, and the lower clutch part 412 is used for being combined with the second transmission group 300; the clutch gap is greater than the thickness of the first clutch gear 410 and the second clutch gear 420 in the vertical direction.

[0059] In the embodiment, the length of the lower clutch part 412 in the axial direction is greater than the thickness of the second clutch gear 420 in the axial direction, so that after the second clutch gear 420 is sleeved on the lower clutch part 412, the lower clutch part 412 extends out from the lower end face of the second clutch gear 420, thereby being able to be combined with the second transmission group 300.

[0060] The embodiment also sets a clutch gap in the vertical direction of the first transmission group 200 and the second transmission group 300, which is greater than the thickness of the first clutch gear 410 and the second clutch gear 420, so that when the first clutch gear 410 is combined with the first transmission group 200, the second clutch gear 420 and the second transmission group 300 remain separated, and when the second clutch gear 420 is combined with the second transmission group 300, the first clutch gear 410 and the first transmission group 200 remain separated.

[0061] Reference Figure 4 In one embodiment, the first clutch gear 410 includes a gear body 413 and a fitting part 414, and the upper clutch part 411 extends from the upper end surface of the gear body 413; the fitting part 414 extends from the lower end surface of the gear body 413, the second clutch gear 420 is sleeved on the fitting part 414, and the lower clutch part 412 extends from the lower end surface of the second clutch gear 420.

[0062] In order to coaxially fix the first clutch gear 410 and the second clutch gear 420, the fitting part 414 is arranged on the lower end surface of the first clutch gear 410, and the fitting part 414 is connected to the gear body and the lower clutch part 412, respectively. The fitting part 414 can be a cylindrical structure, and after an axial hole is formed on the second clutch gear 420, it can be sleeved on the fitting part 414 and clamped with the fitting part 414 or the gear body 413, but it can also be other fixing modes.

[0063] Reference Figure 3 and Figure 4 In one embodiment, the first transmission group 200 includes a first input gear 210, and the second transmission group 300 includes a second input gear 310, the first input gear 210 and the second input gear 310 are arranged in the vertical direction and form a clutch gap; the first input gear 210 cooperates with the upper clutch part 411; the second input gear 310 cooperates with the lower clutch part 412.

[0064] The first input gear 210, the first clutch gear 410, the second clutch gear 420 and the second input gear 310 can be arranged in the axial direction from top to bottom, when the clutch gear 400 moves upward as a whole, the upper clutch part 411 of the first clutch gear 410 can be combined with the first input gear 210 to drive the first input gear 210 to rotate synchronously, when the clutch gear 400 moves downward as a whole, the lower clutch part 412 of the first clutch gear 410 can be combined with the second input gear 310 to drive the second input gear 310 to rotate synchronously, so as to realize the combination and separation of the clutch gear 400 and the first transmission group 200 and the second transmission group 300, respectively.

[0065] Reference Figure 4In one embodiment, the upper clutch part 411 and / or the lower clutch part 412 is provided as a clamping protrusion.

[0066] The clamping protrusion can be formed on the upper clutch part 411 and the lower clutch part 412 of the first clutch gear 410 and protrude towards the end faces of the first input gear 210 and the second input gear 310, and can be a boss, a convex ball or other protrusion structure, which is not limited in the embodiment.

[0067] The first input gear 210 and the second input gear 310 can be provided with a clamping recess corresponding to the clamping protrusion, and when the clutch gear 400 is matched with the first input gear 210 or the second input gear 310, the clamping protrusion is embedded in the clamping recess, thereby achieving clamping, so that the clutch gear 400 can drive the first input gear 210 or the second input gear 310 to move synchronously.

[0068] In other embodiments, the upper clutch part 411 and the lower clutch part 412 can also be provided as a clamping recess, and the first input gear 210 and the second input gear 310 can be provided with a clamping protrusion corresponding to the clamping recess to achieve clamping and improve stability and reliability.

[0069] The number of clamping protrusions is not limited in the embodiment.

[0070] When the axes of the plurality of gears are parallel to each other, if the number of external meshing pairs of the gears is even, the rotation directions of the first gear and the last gear are opposite; if the number of external meshing pairs of the gears is odd, the rotation directions of the first gear and the last gear are the same. Figure 1 and Figure 2 In one embodiment, the first transmission group 200 includes gears, the number of gears = n, the second transmission group 300 includes gears, the number of gears B = n+1, and n is a positive integer greater than or equal to 1.

[0071] The first input gear 210 is the first gear of the first transmission group 200, and the second input gear 310 is the first gear of the second transmission group 300.

[0072] The cleaning assembly 100 can include an output gear and a cleaning member, the output gear and the cleaning member being coaxially fixed, and the output gear further being engaged with the first transmission group 200 and the second transmission group 300.

[0073] When n = 1, the gear number A of the first transmission group 200 = 1, only the first input gear 210 is set as the first gear, the first input gear 210 is engaged with the output gear, and two gear transmissions are formed, so the rotation direction of the output gear is opposite to that of the first input gear 210, that is, the rotation direction of the cleaning member is opposite to that of the first input gear 210. Since the first input gear 210 and the clutch gear 400 rotate synchronously, the rotation direction of the clutch gear 400 and the driving gear 500 is opposite, and the rotation direction of the cleaning member and the driving gear 500 is the same.

[0074] For example, the driving gear 500 rotates forward, drives the clutch gear 400 to rotate reversely, drives the first input gear 210 to rotate reversely, and drives the output gear to rotate forward, so as to realize the forward rotation of the cleaning member.

[0075] Conversely, if the clutch gear 400 is combined with the second transmission group 300, since the gear number B of the second transmission group 300 = 2, the first gear, the last gear and the output gear are engaged, so that the rotation direction of the cleaning member is the same as that of the first gear, and is opposite to that of the driving gear 500.

[0076] The cleaning member of the embodiment can be a side brush.

[0077] The embodiment sets the gear number difference of the transmission chain of the first transmission group 200 and the second transmission group 300, so as to control the output direction of the power of the two to be opposite, and then realizes the forward rotation and reverse rotation of the cleaning assembly 100 when the driving gear 500 rotates forward and reversely.

[0078] Corresponding to the foregoing application function implementation device embodiment, the application also provides a cleaning device and a corresponding embodiment.

[0079] Referring to Figure 5 The embodiment also provides a cleaning device 20, which comprises the side brush device 10 as described above.

[0080] The cleaning device 20 can be a sweeping robot, a mopping robot, a sweeping and mopping integrated robot, a window cleaning robot, and the like, and the embodiment is not limited in particular.

[0081] The scheme of the application has been described in detail above with reference to the drawings. In the above-described embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments. It should be known by those skilled in the art that the actions and modules involved in the specification are not necessarily required by the application. In addition, it can be understood that the steps in the method embodiments of the application can be adjusted, combined and reduced in sequence according to actual needs, and the modules in the device embodiments of the application can be combined, divided and reduced according to actual needs.

[0082] Having described various embodiments of the application, it is to be understood that the above description is meant not to limit and not to encompass all of the possible embodiments. Many modifications and variations of this application can be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. It is intended that the scope of the application be defined by the scope of the patent and by the claims as allowed by the patent office, which can include adaptations based on the description, equivalents, and / or substitutions of elements individually or collectively to the entire disclosure.

Claims

1. A side brush device, characterized in that, The edge brush device comprises: a first transmission group, a second transmission group, a cleaning assembly, a lifting driving gear and a clutch gear; the first transmission group and the second transmission group are respectively connected to the cleaning assembly, and the first transmission group and the second transmission group are configured to output driving force in opposite directions; the driving gear is engaged with the clutch gear for driving the clutch gear to rotate and lift, and the clutch gear is configured to be lifted between the first transmission group and the second transmission group to transmit power to the first transmission group or the second transmission group.

2. The edge brush device according to claim 1, wherein: the driving gear comprises a first driving gear and a second driving gear, the first driving gear and the second driving gear are coaxially fixed as a whole, and the teeth are staggered; the clutch gear comprises a first clutch gear and a second clutch gear; the first clutch gear and the second clutch gear are coaxially fixed as a whole, and the teeth are staggered; wherein the first driving gear and the first clutch gear are engaged, and the second driving gear and the second clutch gear are engaged.

3. The edge brush device according to claim 2, wherein: the lower end surface of the first driving gear abuts against the upper end surface of the second clutch gear, and the upper end surface of the second driving gear abuts against the lower end surface of the second clutch gear.

4. The edge brush device according to claim 3, wherein: the first clutch gear and / or the second clutch gear are provided with a clutch part for being combined with or separated from the first transmission group and the second transmission group respectively.

5. The edge brush device according to claim 4, wherein: the first transmission group and the second transmission group are arranged in the vertical direction and form a clutch gap; the two end surfaces of the first clutch gear are respectively provided with an upper clutch part and a lower clutch part, the second clutch gear is sleeved on the lower clutch part, and the lower clutch part extends from the lower end surface of the second clutch gear; wherein the upper clutch part is used to be combined with the first transmission group, and the lower clutch part is used to be combined with the second transmission group; the clutch gap is greater than the thickness of the first clutch gear and the second clutch gear in the vertical direction.

6. A brush device according to claim 5, wherein: the first clutch gear comprises a gear body and a matching part, the upper clutch part is formed by extending from the upper end surface of the gear body; the matching part is formed by extending from the lower end surface of the gear body, the second clutch gear is sleeved on the matching part, and the lower clutch part extends from the lower end surface of the second clutch gear.

7. The edge brush device according to claim 6, wherein: the first transmission group comprises a first input gear, and the second transmission group comprises a second input gear, the first input gear and the second input gear are arranged in the vertical direction and form the clutch gap; the first input gear is matched with the upper clutch part, and the second input gear is matched with the lower clutch part.

8. The edge brush device according to claim 7, wherein: the upper clutch part and / or the lower clutch part are provided as clamping protrusions.

9. A brush device according to any one of claims 1-8, characterized in that: the first transmission group comprises gears, the number of gears A = n; the second transmission group comprises gears, the number of gears B = n + 1; n is a positive integer greater than or equal to 1.

10. A cleaning apparatus, characterized by a brush device according to any one of claims 1-9.

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