Side brush module and cleaning equipment

Abstract

The utility model discloses a side brush module and cleaning equipment, the side brush module comprises a side brush, a swing arm and a flexible connecting assembly, the side brush is installed at the bottom of the swing arm and can rotate relative to the swing arm, and the swing arm is installed at the bottom of the cleaning equipment and can swing relative to the cleaning equipment so as to drive the side brush to move among an inward retracting position, an outward expanding position and a preset position. The preset position is located between the inward contraction position and the outward expansion position; the flexible connecting assembly is connected with the swing arm, the flexible connecting assembly can change between a first form and a second form in a reciprocating mode, and the flexible connecting assembly in the first form keeps the swing arm at an external expansion position; when external force is applied to the swing arm, the swing arm drives the side brush to move to the inner retracting position or the preset position and drives the flexible connecting assembly to deform from the first form to the second form. The cleaning device solves the problems that the cleaning coverage rate of the cleaning device is low, and the cleaning effect is not ideal.

Description

TECHNICAL FIELD

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

[0002] Cleaning devices such as sweeping robots, mopping machines or scrubbing machines are a kind of intelligent household appliances, which can automatically complete the floor cleaning work in the room by means of certain artificial intelligence. However, when the cleaning device sweeps along the corners of the wall, the edge of the wall, obstacles and the like, there will be a certain gap between the side brush of the cleaning device and the corner, which causes the cleaning device to be unable to sweep out all the garbage at the corner, resulting in low cleaning coverage and unsatisfactory cleaning effect of the cleaning device. The user needs to clean the blind area of the corner area by himself, and the user experience is poor. CONTENT OF THE UTILITY MODEL

[0003] The main purpose of the present application is to provide a side brush module and a cleaning device to solve the problem of low cleaning coverage and unsatisfactory cleaning effect of the cleaning device mentioned in the background.

[0004] According to one aspect of the present application, a side brush module is provided, comprising:

[0005] a side brush;

[0006] an oscillating arm, the side brush is installed at the bottom of the oscillating arm and can rotate relative to the oscillating arm, the oscillating arm is installed at the bottom of the cleaning device and can oscillate relative to the cleaning device to drive the side brush to move between an inner retracted position, an outer expanded position and a predetermined position, the predetermined position is located between the inner retracted position and the outer expanded position, the first area of the part of the side brush extending out of the edge contour of the cleaning device has a first area, and the first area when the side brush is located at the inner retracted position is smaller than the first area when the side brush is located at the outer expanded position;

[0007] a flexible connecting assembly, the flexible connecting assembly is connected with the oscillating arm, the flexible connecting assembly can reciprocate between a first form and a second form, the flexible connecting assembly in the first form keeps the oscillating arm at the outer expanded position;

[0008] When the oscillating arm is subjected to an external force, the oscillating arm drives the side brush to move to the inner retracted position or the predetermined position, and drives the flexible connecting assembly to deform from the first form to the second form.

[0009] Further, the flexible connecting assembly comprises:

[0010] a first connecting piece, the first connecting piece is arranged on the oscillating arm;

[0011] An elastic element, which is capable of reciprocating between the first and second configurations under its own elasticity, and one end of the elastic element is connected to the first connecting member along the extension direction of the elastic element.

[0012] Further, the elastic element comprises:

[0013] A tension spring, one end of which is connected to the first connecting member along the extension direction of the tension spring, and when the tension spring is in the first configuration, the adjacent two turns of the tension spring are in close contact with each other, and when the tension spring is in the second configuration, the adjacent two turns of the tension spring have a predetermined gap therebetween.

[0014] When the swing arm is in the outwardly expanded position, the tension spring is in the first configuration, and during the process of the swing arm rotating towards the inwardly retracted position under the action of the external force, the tension spring deforms from the first configuration to the second configuration.

[0015] When the external force is removed, during the process of the tension spring deforming from the second configuration to the first configuration, the tension spring pulls the first connecting member to move towards the end of the first connecting member away from the tension spring to pull the swing arm back to the outwardly expanded position.

[0016] Further, the swing arm comprises:

[0017] A swing arm body, and the brush is installed at the bottom of the swing arm body.

[0018] A mounting portion, which is mounted on the side of the swing arm away from the brush, is used to be rotatably connected with the cleaning device, and the first connecting member is arranged on the mounting portion.

[0019] Further, the mounting portion comprises:

[0020] A mounting column, which is detachably connected with the swing arm body.

[0021] A flange, which is protruded from the outer circumferential surface of the mounting column, and the first connecting member is arranged on the surface of the flange away from the swing arm body.

[0022] Further, a connecting structure is arranged between the mounting portion and the swing arm body, the mounting column is detachably connected with the swing arm body through the connecting structure, and the connecting structure comprises:

[0023] A protruding column, which is arranged on the surface of the swing arm body close to the mounting column, and at least part of the protruding column is arranged opposite to the side of the flange close to the swing arm body, and the flange has a first position close to the protruding column and a second position away from the protruding column when the mounting column moves.

[0024] A locking member is arranged to lock the flange in the first position or unlock the flange to the second position.

[0025] Further, a first through hole is arranged in the mounting column, an avoiding groove is arranged on the outer wall of the mounting column, the avoiding groove is communicated with the first through hole, the avoiding groove extends away from the groove bottom of the swing arm body to the side of the flange close to the swing arm, and the connecting structure further comprises:

[0026] A connecting protrusion is arranged on the surface of the swing arm body close to the mounting column, the connecting protrusion is matched with the first through hole and at least partially arranged in the first through hole, the convex column is arranged on the outer wall of the connecting protrusion and located in the avoiding groove, and / or,

[0027] A containing cavity is arranged in the swing arm body, a first through hole is arranged in the mounting column, and the edge brush module further comprises a driving assembly, the driving assembly comprises:

[0028] A motor is arranged in the first through hole, the motor comprises a rotating shaft, the rotating shaft is located on the side of the motor close to the swing arm body and at least partially arranged in the containing cavity;

[0029] A transmission system is arranged in the containing cavity, the transmission system is drivingly connected between the rotating shaft and the edge brush, the motor drives the transmission system to drive the edge brush to rotate, and / or,

[0030] The edge brush module further comprises:

[0031] A buffer member is arranged on the outer wall of the swing arm body close to the edge brush.

[0032] According to another aspect of the present application, a cleaning device is provided, which is characterized by comprising:

[0033] The edge brush module;

[0034] A shell, the swing arm is connected with the shell and the edge brush is located at the bottom of the shell, and a flexible connecting assembly is connected between the swing arm and the shell.

[0035] Further, the swing arm comprises a swing arm body and a mounting portion, and a second through hole is arranged in the shell;

[0036] The swing arm body is located at the bottom of the shell and is at least partially opposite to the second through hole along the axial direction of the second through hole, and the bristle brush is mounted on the swing arm body away from the bottom of the shell, the mounting portion is rotationally connected with the hole wall of the second through hole and is connected with the swing arm body at least partially through the second through hole.

[0037] Further, the flexible connecting assembly comprises a first connecting piece, an elastic element and a second connecting piece, and the mounting portion comprises a mounting column and a flange.

[0038] The mounting column is gap-fitted with the second through hole and connected with the swing arm body through the second through hole, the flange is arranged on the end of the hole wall of the second through hole away from the swing arm body, and the flange can rotate with the mounting column relative to the hole wall of the second through hole, the first connecting piece is arranged on the surface of the flange away from the swing arm body, the second connecting piece is arranged on the side of the shell away from the swing arm body, and the elastic element is connected between the first connecting piece and the second connecting piece; and / or,

[0039] At least one of the first connecting piece and the second connecting piece comprises a connecting block, the side of the connecting block away from the elastic element is provided with a limiting groove, and the annular ring is sleeved on the groove wall of the limiting groove close to the elastic element; and / or,

[0040] The stop assembly comprises a first stop portion and a second stop portion, the first stop portion and the second stop portion are arranged on the shell, the first stop portion is used for stopping the swing arm at the outward expansion position, and the second stop portion is used for stopping the swing arm at the inward retraction position.

[0041] In this application, the side brush of the side brush module is mounted on the bottom of the swing arm. When the swing arm swings relative to the cleaning device, it can move the side brush between an inward position, an outward position, and a predetermined position. A flexible connecting component is connected to the swing arm. The flexible connecting component can reciprocate between a first form and a second form. During the process of the cleaning device equipped with the side brush module of this application moving forward and performing cleaning work, the swing arm can be held in the outward position by the flexible connecting component located in the first form. Since the side brush is in an outward cleaning state that at least partially extends beyond the edge contour of the cleaning device when the swing arm is in the outward position, the cleaning coverage and cleaning effect of the side brush in the blind spots of the corners of the surface to be cleaned can be increased. When the swing arm is subjected to an external force, which typically originates from an obstacle encountered in front of the cleaning equipment during its forward movement, the swing arm can move the side brush to an inward or predetermined position. This force also causes the flexible connecting component to deform from a first form to a second form, allowing the side brush to return to a retracted cleaning state closer to the cleaning equipment under the swing arm's influence. This prevents direct collisions and obstructions between the swing arm and / or the side brush, ensuring that the swing arm and / or the side brush can avoid obstacles. When the external force is removed, the flexible connecting component deforms from the second form back to the first form, causing the swing arm to return to the outward position. Furthermore, since this application utilizes the flexible deformation of the flexible connecting component between the first and second forms to drive the swing arm to reciprocate between the outward and inward positions, there is no need to add an additional power actuator to drive the swing arm's reciprocating motion between these positions, thus reducing the equipment cost of the cleaning equipment. Attached Figure Description

[0042] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0043] Figure 1 A schematic diagram of the cleaning device when the swing arm of the side brush module provided in this embodiment of the utility model is in the outward expansion position;

[0044] Figure 2 This is a schematic diagram of the cleaning equipment when the swing arm is in the retracted position.

[0045] Figure 3 This is a schematic diagram of an explosion involving cleaning equipment.

[0046] Figure 4 This is a schematic diagram of the side brush module.

[0047] Figure 5 for Figure 4 An enlarged schematic diagram of part A in the middle;

[0048] Figure 6 This is an exploded view of the side brush module;

[0049] Figure 7 A top view of the cleaning device;

[0050] Figure 8 A B-B sectional view of the cleaning device; Figure 7

[0051] Figure 9 A structural schematic view of the driving assembly;

[0052] Figure 10 A structural schematic view of the third groove arranged on the swing arm;

[0053] Figure 11 A structural schematic view of the flexible pad arranged in the third groove;

[0054] Figure 12 A structural schematic view of the housing of the cleaning device.

[0055] In the above drawings, the following reference signs are used:

[0056] 10, the brush; 20, the swing arm; 21, the swing arm body; 210, the accommodating cavity; 211, the first shell; 212, the second shell; 121, the first groove; 122, the third groove; 22, the mounting portion; 221, the mounting column; 2211, the first through hole; 2212, the avoiding groove; 222, the flange; 30, the flexible connecting assembly; 31, the first connecting piece; 32, the elastic element; 321, the annular ring; 33, the second connecting piece; 331, the connecting block; 311, the limiting groove; 40, the connecting structure; 41, the convex column; 42, the locking piece; 43, the connecting protrusion; 431, the second groove; 432, the opening; 50, the driving assembly; 51, the motor; 511, the rotating shaft; 52, the transmission system; 521, the output shaft; 522, the staggered shaft transmission unit; 5221, the first transmission shaft; 5222, the first gear; 5223, the second gear; 5224, the second transmission shaft; 5225, the third gear; 5226, the fourth gear; 523, the gear transmission unit; 5231, the fifth gear; 5232, the third transmission shaft; 5233, the sixth gear; 5234, the seventh gear; 60, the buffer piece; 61, the flexible pad; 611, the first section; 612, the second section; 613, the third section; 70, the housing; 71, the second through hole; 72, the accommodating groove; 721, the opening; 73, the stopper assembly; 731, the first stopper; 732, the second stopper. DETAILED DESCRIPTION

[0057] It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0058] ​It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0059] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the present application unless otherwise specifically stated. It is to be understood that the actual dimensions of the various parts shown in the drawings are not necessarily to scale. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as possibly part of the present application. In all examples shown and discussed herein, any specific value is to be interpreted as illustrative only and not as a limitation. Thus, other examples of example embodiments can have different values. It is noted that like numbers and letters on the figures identify like parts throughout the several views, and thus, further discussion of the same will not be repeated.

[0060] To solve the problem of low cleaning coverage and unsatisfactory cleaning effect of the cleaning device. Although the motor 51 can drive the corresponding transmission assembly (such as a cam or a crank connecting rod structure) to drive the outer expansion and recovery of the side brush 10, so as to improve the cleaning coverage of the side corner blind area in the outer expansion cleaning state, but this kind of outer expansion method has high cost and large occupied volume.

[0061] To this end, the first embodiment of the utility model provides a side brush module, please see Figures 1 to 12 The side brush module comprises a side brush 10, a swing arm 20 and a flexible connecting assembly 30. The side brush 10 is installed at the bottom of the swing arm 20 and can rotate relative to the swing arm 20, so that the side brush 10 can sweep the garbage on the surface to be cleaned into the dust box of the cleaning device in the rotating process. The swing arm 20 is installed at the bottom of the cleaning device and can swing relative to the cleaning device to drive the side brush 10 to move between the inner collection position, the outer expansion position and the predetermined position, the predetermined position is located between the inner collection position and the outer expansion position, the part of the side brush 10 extending out of the edge contour of the cleaning device has a first area, and the first area of the side brush 10 when located at the inner collection position is smaller than the first area when located at the outer expansion position, so that the cleaning range of the side brush 10 when the swing arm 20 is located at the outer expansion position can cover the corner area, and the cleaning coverage of the side brush 10 to the corner area is improved.

[0062] As Figure 1Fig. 4 is a schematic view of the cleaning device when the swing arm 20 is in the outwardly extended position, and the side brush 10 is in the outwardly extended cleaning state, so as to improve the cleaning coverage of the side brush 10 on the corner blind area of the surface to be cleaned during the cleaning process. Figure 2 Fig. 5 is a schematic view of the cleaning device when the swing arm 20 is in the inwardly retracted position, and the side brush 10 is in the inwardly retracted cleaning state. In the embodiment, when the swing arm 20 is in the outwardly extended position, at least part of the side brush 10 is located outside the edge profile of the cleaning device (i.e., the side brush 10 is in the outwardly extended cleaning state), and when the swing arm 20 is in the inwardly retracted position, the side brush 10 is closer to the cleaning device than when the swing arm 20 is in the outwardly extended position (i.e., the side brush 10 is in the inwardly retracted cleaning state). When the swing arm 20 is in the inwardly retracted position, the side brush 10 can be entirely located inside the edge profile of the cleaning device, or the side brush 10 can be at least partially located inside the edge profile of the cleaning device and at least partially located outside the edge profile of the cleaning device. Moreover, the embodiment can facilitate the modular production of the cleaning device and improve the assembly efficiency of the cleaning device by integrally installing the swing arm 20 connected with the side brush 10 and the flexible connecting assembly 30 on the cleaning device.

[0063] In the embodiment, the flexible connecting assembly 30 is connected with the swing arm 20, and the flexible connecting assembly 30 can reciprocate between the first mode and the second mode. When the flexible connecting assembly 30 is in the first mode, the flexible connecting assembly 30 keeps the swing arm 20 in the outwardly extended position. When the swing arm 20 is subjected to an external force, the swing arm 20 swings towards the inwardly retracted position (i.e., the direction indicated by the arrow X in the figure) so as to move the side brush 10 to the inwardly retracted position or a predetermined position, and deform the flexible connecting assembly 30 from the first mode to the second mode. When the external force is removed, the flexible connecting assembly 30 deforms from the second mode to the first mode so as to drive the swing arm 20 to return to the outwardly extended position. Figure 1

[0064] In the embodiment, the external force acting on the swing arm 20 mainly comes from the resistance force applied to at least one of the swing arm 20 and the side brush 10 during the forward movement of the cleaning device. Since the swing arm 20 in the embodiment can rotate towards the inwardly retracted position under the action of the external force and deform the flexible connecting assembly 30 from the first mode to the second mode, the swing arm 20 and the side brush 10 can be kept away from the obstacle, the side brush 10 can be switched from the outwardly extended cleaning state to the inwardly retracted cleaning state, and the swing arm 20 and the side brush 10 can be prevented from being damaged due to the collision with the obstacle, thereby improving the service life and reliability of the side brush module. Moreover, the outward extension and retraction of the side brush 10 can be achieved by using the flexible deformation characteristics of the flexible connecting assembly 30 between the first mode and the second mode, without using an additional driving device, thereby reducing the cost and the occupied volume, and thus reducing the installation space of the side brush module in the cleaning device and saving the installation space of the cleaning device.

[0065] ​It can be seen that in the embodiment, the side brush 10 of the side brush module is installed at the bottom of the swing arm 20, and the swing arm 20 can drive the side brush 10 to move between the inner retraction position, the outer expansion position and the predetermined position when the swing arm 20 swings relative to the cleaning device. The flexible connecting assembly 30 is connected with the swing arm 20. The flexible connecting assembly 30 can reciprocate between the first mode and the second mode. During the process of the cleaning device on which the side brush module in the application is installed advancing and performing cleaning work, the swing arm 20 can be kept at the outer expansion position through the flexible connecting assembly 30 in the first mode. Since the side brush 10 is in the outer expansion cleaning state of being at least partially extended out of the edge contour of the cleaning device when the swing arm 20 is at the outer expansion position, the cleaning coverage and cleaning effect of the side brush 10 on the corner blind area of the surface to be cleaned can be increased. If the swing arm 20 is subjected to an external force, since the external force usually comes from an obstacle in front of the cleaning device encountered during the advancement of the cleaning device, under the action of the external force, the swing arm 20 swings towards the direction close to the inner retraction position, the swing arm 20 can drive the side brush 10 to move to the inner retraction position or the predetermined position, and drive the flexible connecting assembly 30 to deform from the first mode to the second mode, so that the side brush 10 returns to the recycling cleaning state close to the cleaning device under the driving of the swing arm 20, thereby avoiding the direct collision and blockage of the swing arm 20 and / or the side brush 10 by the obstacle, and ensuring that the swing arm 20 and / or the side brush 10 can avoid the obstacle. When the external force is removed, the flexible connecting assembly 30 deforms from the second mode to the first mode to drive the swing arm 20 to return to the outer expansion position. At the same time, since the flexible connecting assembly 30 is used to drive the swing arm 20 to reciprocate between the outer expansion position and the inner retraction position through the flexible deformation between the first mode and the second mode, it is not necessary to increase an additional power executor for driving the swing arm 20 to reciprocate between the outer expansion position and the inner retraction position, thereby reducing the equipment cost of the cleaning device.

[0066] As shown in Figures 4 to 6 , Figure 10 and Figure 11 , the flexible connecting assembly 30 in the embodiment includes a first connecting piece 31 and an elastic element 32. The first connecting piece 31 is arranged on the swing arm 20. The elastic element 32 can reciprocate between the first mode and the second mode under the elastic action of itself, and one end of the elastic element 32 is connected with the first connecting piece 31 along the extension direction of the elastic element 32. The flexible connecting assembly 30 can further include a second connecting piece 33, which is installed on the housing 70 of the cleaning device and connected with the end of the elastic element 32 away from the first connecting piece 31. Thus, when the side brush module is installed on the cleaning device, the elastic element 32 is connected with the second connecting piece 33, and the swing arm 20 can be driven to swing between the outer expansion position and the inner retraction position through the change of the elastic element 32 between the first mode and the second mode, which is convenient to assemble and low in cost.

[0067] The first form of the elastic element 32 can be a natural state, and the second form can be a state in which the elastic element 32 is compressed or stretched. In this regard, the manner in which the swing arm 20 drives the edge brush 10 to avoid obstacles can include the following two manners:

[0068] Manner one: when the swing arm 20 located at the outwardly expanded position is subjected to an external force, the swing arm 20 can drive the first connecting piece 31 to move away from the elastic element 32 and away from one end of the first connecting piece 31 (i.e., the end of the elastic element 32 connected to the second connecting piece 33 on the shell 70) to stretch the elastic element 32, so that the elastic element 32 deforms from the first form to the second form.

[0069] Manner two: when the swing arm 20 located at the outwardly expanded position is subjected to an external force, the swing arm 20 can drive the first connecting piece 31 to move close to the second connecting piece 33 to compress the elastic element 32, so that the elastic element 32 deforms from the first form to the second form.

[0070] Thus, when connecting the swing arm 20 and the elastic element 32, the above two manners can be used to realize the inward retraction of the edge brush 10, so as to ensure that the edge brush 10 and the swing arm 20 can avoid obstacles, improve the cleaning coverage of the edge brush module, and improve the service life and reliability of the edge brush module. The second connecting piece 33 can also be connected to the elastic element 32, and then the edge brush module is installed at the bottom of the cleaning device, and the second connecting piece 33 is connected to the shell 70 of the cleaning device. The second connecting piece 33 can also be provided on the cleaning device in advance, and the second connecting piece 33 can also be integrally formed with the shell 70. After the elastic element 32 is connected to the swing arm 20 through the first connecting piece 31, the edge brush module is installed at the bottom of the cleaning device, and then the end of the elastic element 32 away from the first connecting piece 31 is connected to the second connecting piece 33. Regardless of the connection manner, the connection between the elastic element 32 and the swing arm 20 in the embodiment is simple and convenient, and the elastic element 32 occupies less space in the cleaning device, saving the installation space of the cleaning device, thereby providing sufficient space for the assembly of other parts of the cleaning device.

[0071] The elastic element 32 in the embodiment can be a compression spring. The characteristics that the compression spring can be compressed and stretched are used to flexibly install the swing arm 20 in the cleaning device. For example, the compression spring can keep the swing arm 20 in the outwardly expanded position when the compression spring is in a natural state. During the process in which the swing arm 20 rotates from the outwardly expanded position to the inwardly retracted position, the compression spring gradually deforms from the natural state to the compressed state, or the compression spring gradually deforms from the natural state to the stretched state.

[0072] The elastic element 32 in the embodiment can specifically include a tension spring, one end of the tension spring is arranged along the stretching direction of the tension spring and connected with the first connecting piece 31, when the tension spring is in the first mode, the adjacent two spiral turns of the tension spring are in close contact with each other, and when the tension spring is in the second mode, the adjacent two spiral turns of the tension spring have a predetermined gap. The tension spring is in the first mode when the swing arm 20 is in the outwardly expanded position. Since the adjacent two spiral turns of the tension spring in the first mode are in close contact with each other, the stability of the swing arm 20 in the outwardly expanded position can be improved, and the swing arm 20 can be prevented from shaking in a non-force state to reduce the cleaning effect of the edge brush 10. In the process that the swing arm 20 rotates towards the inwardly retracted position under the action of an external force, the tension spring deforms from the first mode to the second mode, that is, the swing arm 20 can rotate towards the inwardly retracted position under the action of the external force by stretching the tension spring. When the external force is removed, in the process that the tension spring deforms from the second mode to the first mode, the tension spring pulls the first connecting piece 31 to move towards the end of the tension spring away from the first connecting piece 31 to pull the swing arm 20 back to the outwardly expanded position. That is, after the swing arm 20 and / or the edge brush 10 avoid or move away from the obstacle, the tension spring can pull the swing arm 20 back to the outwardly expanded position by the pulling force generated when the tension spring returns to the first mode, and the swing arm 20 can return to the outwardly expanded position without additional pulling force.

[0073] As shown in Figure 4 , the swing arm 20 in the embodiment includes a swing arm body 21 and a mounting portion 22. The edge brush 10 is mounted at the bottom of the swing arm body 21. The mounting portion 22 is mounted on the side of the swing arm 20 away from the edge brush 10, and the mounting portion 22 is used to be rotatably connected with the cleaning device to rotatably mount the swing arm body 21 at the bottom of the cleaning device. The first connecting piece 31 is arranged on the mounting portion 22. Thus, after the edge brush module is mounted on the cleaning device, when the elastic element 32 is in the first mode, the swing arm body 21 is kept in the outwardly expanded position, so that the edge brush 10 can increase the cleaning coverage of the edge corner blind area during the cleaning process. When the swing arm body 21 and / or the edge brush 10 are subjected to an external force applied by an obstacle on the travel path of the cleaning device, the swing arm body 21 moves towards the inwardly retracted position to drive the edge brush 10 back to the retracted cleaning state, and at this time, the elastic element 32 deforms to the second mode. When the external force is removed, the swing arm body 21 returns to the outwardly expanded position under the action of the elastic force generated in the process that the elastic element 32 returns from the second mode to the first mode. Thus, not only does the outward expansion and retraction of the edge brush 10 not need to additionally increase a driving mechanism, but also the edge brush 10 can always stably keep in the outwardly expanded cleaning state to clean the surface to be cleaned when the edge brush 10 is not hindered by the obstacle, and the overall structure is stable and reliable and low in cost.

[0074] In combination with Figure 3 and Figure 7In the process of connecting the mounting portion 22 with the cleaning device, a second through hole 71 is formed in the shell 70 of the cleaning device. In the assembly process, the swing arm body 21 is arranged at the bottom of the shell 70 and at least partially opposite to the second through hole 71 along the axial direction of the second through hole 71. The brush 10 is arranged on the swing arm body 21 away from the bottom of the shell 70. The mounting portion 22 is rotatably connected with the hole wall of the second through hole 71 and at least partially penetrates the second through hole 71 to be connected with the swing arm body 21. The second connecting member 33 is arranged on the shell 70 and connected with the elastic element 32 away from the first connecting member 31. The assembly is convenient and efficient.

[0075] The mounting portion 22 can be rotatably connected with the cleaning device through a rotating connecting member, which can include a bearing, a shaft coupling, a gear transmission connecting structure 40, etc. However, in order to further reduce the assembly difficulty and cost between the swing arm 20 and the cleaning device, the mounting portion 22 can include a mounting column 221 and a flange 222. The mounting column 221 is detachably connected with the swing arm body 21. The flange 222 is protruded from the outer circumferential surface of the mounting column 221. The first connecting member 31 is arranged on the surface of the flange 222 away from the swing arm body 21. The first connecting member 31 can be arranged on the flange 222 through a predetermined connecting mode (such as welding, riveting, clamping), or can be integrally formed with the flange 222. When integrally formed, the assembly steps between the flexible connecting assembly 30 and the swing arm 20 can be reduced, and the production efficiency and yield of the brush module can be improved. In the process of connecting the mounting portion 22 with the cleaning device, the mounting column 221 can be clearance-fitted with the second through hole 71 and penetrates the second through hole 71 to be connected with the swing arm body 21. Then, the flange 222 is arranged on the hole wall of the second through hole 71 away from the swing arm body 21. The flange 222 can rotate with the mounting column 221 relative to the hole wall of the second through hole 71. In this way, the rotating connection between the mounting portion 22 and the second through hole 71 is realized at low cost through the clearance-fitting mode. By clamping the shell 70 of the cleaning device between the swing arm body 21 and the flange 222 of the mounting column 221, it is ensured that the swing arm body 21 does not deviate from the shell 70 of the cleaning device during rotation, and the compactness and reliability of the assembly structure between the swing arm 20 and the shell 70 are improved. The mounting column 221 can be a cylindrical structure or a polygonal column structure, which is not limited in the embodiment.

[0076] The flange 222 can be multiple or one. When multiple, the multiple flanges 222 can be arranged in sequence and spaced apart or arranged in sequence and adjacent around the circumference of the mounting column 221. When one, the flange 222 can be an annular structure arranged around the circumference of the mounting column 221. When the flange 222 is an annular structure, the cooperation between the mounting portion 22 and the shell 70 is more stable and reliable.

[0077] Secondly, please seeFigure 3 And Figure 6 The mounting portion 22 and the swing arm body 21 in the embodiment are provided with a connecting structure 40, the mounting column body 221 is detachably connected with the swing arm body 21 through the connecting structure 40, so that the assembly convenience between the mounting column body 221 and the swing arm body 21 is improved. The connecting structure 40 comprises a convex column 41 and a locking piece 42. The convex column 41 is arranged on the surface of the swing arm body 21 close to the mounting column body 221, and the convex column 41 is arranged opposite to the side of the flange 222 close to the swing arm body 21 at least partially, and the flange 222 has a first position close to the convex column 41 and a second position away from the convex column 41 when the mounting column body 221 moves. In combination Figure 4 And Figure 5 It can be seen that the locking piece 42 locks the flange 222 at the first position or unlocks to the second position. In the embodiment, the flange 222 is connected with the convex column 41 arranged on the swing arm body 21 through the locking piece 42, which not only has high stability but also is convenient to assemble, and when the swing arm body 21 is installed at the bottom of the cleaning equipment, the mounting column body 221 can be inserted into the second through hole 71 and the flange 222 is arranged on the hole wall of the second through hole 71 away from the swing arm body 21, then the part of the swing arm body 21 provided with the convex column 41 is arranged opposite to the second through hole 71 and the convex column 41 is arranged along the second through hole 71 to the position opposite to the flange 222 at least partially, then the locking piece 42 is arranged along the flange 222 into the convex column 41 to lock them together. Moreover, since the flange 222 is located on the port of the second through hole 71, enough operation space can be provided for the installation of the locking piece 42, and the installation is efficient and convenient. The outer edge of the flange 222 away from the locking piece 42 can be arranged on the port of the second through hole 71. The locking piece 42 can be a bolt, a screw or the like, which has low cost and is easy to obtain.

[0078] In order to make the connection between the mounting column body 221 and the swing arm body 21 more stable, the first through hole 2211 is arranged in the mounting column body 221 in the embodiment, and the outer peripheral wall of the mounting column body 221 is provided with an avoiding groove 2212 in communication with the first through hole 2211. The groove bottom of the avoiding groove 2212 away from the swing arm body 21 extends to the side of the flange 222 close to the swing arm 20. As Figure 6 And Figure 8As shown, the connecting structure 40 further comprises a connecting protrusion 43 arranged on the surface of the swing arm body 21 close to the mounting column 221, which is adapted to the first through hole 2211 and at least partially arranged in the first through hole 2211, so as to increase the connecting area between the connecting structure 40 and the mounting column 221, and make the mounting column 221 more stable and reliable relative to the swing arm body 21. The protruding column 41 is arranged on the outer side wall of the connecting protrusion 43 and located in the avoiding groove 2212, which not only ensures that the protruding column 41 and the flange 222 are locked together through the locking piece 42, but also improves the structural compactness between the connecting structure 40 and the mounting column 221, reduces the overall volume of the swing arm 20, and further saves the installation space of the swing arm 20 in the shell 70. The protruding column 41 and the avoiding groove 2212 in the embodiment each comprise a plurality of protruding columns 41 arranged at intervals on the outer periphery of the connecting protrusion 43 and corresponding to the plurality of avoiding grooves 2212 on the mounting column 221, so as to make the connection between the mounting column 221 and the swing arm body 21 more stable and reliable through the connection of the plurality of protruding columns 41 and the flange 222.

[0079] As shown in Figure 8 , the swing arm body 21 in the embodiment is provided with a containing cavity 210, and the mounting column 221 is provided with a first through hole 2211. The edge brush module further comprises a driving assembly 50, please refer to Figure 6 、 Figure 8 and Figure 9 , the driving assembly 50 comprises a motor 51 and a transmission system 52. The motor 51 is installed in the first through hole 2211, and the motor 51 comprises a rotating shaft 511 located on the side of the motor 51 close to the swing arm body 21 and at least partially arranged into the containing cavity 210. The transmission system 52 is installed in the containing cavity 210, and the transmission system 52 is drivingly connected between the rotating shaft 511 and the edge brush 10. The motor 51 drives the transmission system 52 to drive the edge brush 10 to rotate. Thus, while the motor 51 drives the transmission system 52 to drive the edge brush 10 to rotate, the motor 51 is installed in the first through hole 2211 and the transmission system 52 is installed in the containing cavity 210 of the swing arm body 21, which improves the structural compactness and reliability between the driving assembly 50 and the swing arm 20, and improves the assembly convenience and efficiency between the edge brush module and the shell 70.

[0080] As shown in Figure 6As shown, the swing arm body 21 in the embodiment can specifically include a first shell 211 and a second shell 212. The first shell 211 and the second shell 212 are detachably connected. The swing arm body 21 is assembled together through the first shell 211 and the second shell 212, which not only makes the swing arm body 21 simple in structure and light in weight, and easy to be driven to rotate under the flexible deformation of the flexible connecting assembly 30, but also facilitates the assembly and maintenance of the transmission system 52 because the first shell 211 is detachably connected with the second shell 212.

[0081] At least one of the first shell 211 and the second shell 212 is provided with a first recess 121 on the side close to each other, so that the first shell 211 and the second shell 212 are assembled together to form a receiving cavity 210 for mounting the transmission system 52. Before the transmission system 52 is mounted, the transmission system 52 is first mounted in the first recess 121 of the first shell 211 or the second shell 212, and then the first shell 211 and the second shell 212 are assembled and buckled together. The edge brush 10 can be mounted on the bottom of the first shell 211 away from the second shell 212, and the second shell 212 is detachably connected with the mounting column 221 through the connecting structure 40.

[0082] When the connecting structure 40 further includes a connecting protrusion 43, in order to make the connection between the motor 51 and the swing arm body 21 more compact and convenient, the connecting protrusion 43 is at least partially inserted into the first through hole 2211, so that Figure 6 As shown, the second recess 431 can be provided on the side of the connecting protrusion 43 close to the mounting column 221 in the embodiment, and the second recess 431 is in communication with the first through hole 2211. The bottom of the second recess 431 is provided with an opening 432 in communication with the receiving cavity 210. When the motor 51 is received in the first through hole 2211 and the second recess 431, the rotating shaft 511 of the motor 51 is inserted into the receiving cavity 210 through the opening 432 to be drivingly connected with the transmission system 52.

[0083] As shown, Figure 9 As shown, the transmission system 52 mounted in the receiving cavity 210 of the swing arm body 21 can include an output shaft 521 and an angle transmission mechanism. The output shaft 521 is rotatably mounted on the end of the swing arm body 21 away from the motor 51 along the radial direction of the rotating shaft 511 and connected with the edge brush 10, and the output shaft 521 and the rotating shaft 511 form a predetermined included angle. Thus, the edge brush 10 mounted on the output shaft 521 will have a certain inclination angle with the surface to be cleaned. The inclination angle can ensure that the edge brush 10 can timely clean the garbage on the surface to be cleaned into the dust box of the cleaning equipment. The angle transmission mechanism is drivingly connected between the rotating shaft 511 and the output shaft 521, and the angle transmission mechanism is used to transmit the rotational kinetic energy of the rotating shaft 511 to the output shaft 521, so that the output shaft 521 can drive the edge brush 10 to rotate and work.

[0084] The angle transmission mechanism includes a crossed shaft transmission unit 522 and a gear transmission unit 523. The gear transmission unit 523 is in transmission connection with the rotating shaft 511. Please refer to Figure 9 The crossed shaft transmission unit 522 includes a first transmission shaft 5221, a first gear 5222, a second gear 5223, a second transmission shaft 5224, a third gear 5225 and a fourth gear 5226. The first transmission shaft 5221 is installed on the side of the gear transmission unit 523 away from the rotating shaft 511. The first gear 5222 and the second gear 5223 are sleeved on the first transmission shaft 5221 and can rotate around the axis of the first transmission shaft 5221. The first gear 5222 is in transmission connection with the gear transmission unit 523. The second transmission shaft 5224 is installed between the first transmission shaft 5221 and the output shaft 521. The third gear 5225 is sleeved on the second transmission shaft 5224 and can rotate around the axis of the second transmission shaft 5224. The third gear 5225 is in engagement with the second gear 5223. The fourth gear 5226 is sleeved on the output shaft 521 and is in engagement with the third gear 5225. The first transmission shaft 5221 and the second transmission shaft 5224 are at a predetermined included angle. The gear type of at least one of the second gear 5223 and the third gear 5225 includes a helical gear. The gear type of the fourth gear 5226 is the same as that of the third gear 5225.

[0085] In the embodiment, the second gear 5223 is a helical gear and the third gear 5225 is a straight gear. The helix angle of the helical gear is equal to the predetermined included angle between the output shaft 521 and the rotating shaft 511. In the embodiment, the third gear 5225 and the fourth gear 5226 can also be helical gears and the second gear 5223 can be a straight gear. The helix angle of the third gear 5225 (the helix angle βi of a helical gear is determined by its lead L and the pitch diameter di of the cylinder. The helix angle is the same as the lead, but the pitch diameters are different. In other words, the helix angles of gears with different pitch diameters are also different. The relationship is: tgβi = πdi / L) is the predetermined included angle. In this way, the rotating kinetic energy of the rotating shaft 511 can be transmitted to the output shaft 521. In the embodiment, the second gear 5223, the third gear 5225 and the fourth gear 5226 can all be helical gears. The sum of the helix angle of the third gear 5225 and the helix angle of the second gear 5223 is the predetermined included angle. In this way, the rotating kinetic energy of the rotating shaft 511 can be transmitted to the output shaft 521. In this way, no matter what the combination relationship between the third gear 5225 and the second gear 5223 is, the rotating kinetic energy of the rotating shaft 511 of the motor 51 can be stably transmitted to the edge brush 10 connected with the output shaft 521 through the crossed shaft transmission unit 522.

[0086] The gear transmission unit 523 comprises a fifth gear 5231, a third transmission shaft 5232, a sixth gear 5233, and a seventh gear 5234. The fifth gear 5231 is sleeved on the rotating shaft 511 and can rotate with the rotating shaft 511. The third transmission shaft 5232 is installed between the fifth gear 5231 and the first transmission shaft 5221. The sixth gear 5233 and the seventh gear 5234 are both sleeved on the third transmission shaft 5232 and can rotate around the axis of the third transmission shaft 5232. The sixth gear 5233 is engaged with the fifth gear 5231, and the seventh gear 5234 is engaged with the first gear 5222. In order to make the kinetic energy transmission of the gear transmission unit 523 more stable, the fifth gear 5231 and the sixth gear 5233 in the embodiment are both designed as helical gears, and the seventh gear 5234 and the first gear 5222 are both designed as straight gears.

[0087] The fifth gear 5231 and the sixth gear 5233 in the embodiment are helical gears, and the kinetic energy of the rotating shaft 511 is sequentially transmitted to the staggered shaft transmission unit 522 through the helical gears, which is more stable than the transmission process of straight gears. Because the teeth of the helical gears are inclined, it means that when a pair of helical gears (i.e. the fifth gear 5231 and the sixth gear 5233) begin to engage, not all the teeth are in contact at the same time, but one end of the teeth begins to contact first, and then gradually expands to the entire tooth surface. This progressive contact method reduces impact and noise. Secondly, due to the progressive contact characteristics of the helical gears, at any time, multiple teeth are involved in engagement. This helps to disperse the load and reduce the pressure on individual teeth, thereby reducing vibration and noise, making the transmission more stable. In addition, helical gears usually have higher contact ratio, that is, while one tooth on one gear is engaged with the teeth on another gear, other teeth on the gear are also engaged with other teeth on the other gear. High contact ratio means smoother and quieter operation.

[0088] In addition, in order to avoid the hard collision between the swing arm body 21 and the obstacle when the swing arm body 21 contacts the obstacle, the swing arm body 21 and the obstacle are damaged, the brush module in the embodiment further comprises a buffer 60, which covers at least the outer peripheral wall of the swing arm body 21 close to the brush 10. Thus, during the process of the cleaning device driving the brush module to advance for cleaning work, the buffer 60 on the swing arm body 21 can buffer the collision between the swing arm body 21 and the obstacle, reduce the impact of the obstacle on the swing arm body 21, and protect the swing arm body 21 and the transmission system 52 installed therein.

[0089] The present application relates to a cleaning device Figure 11As shown, the buffer 60 in the embodiment can be a flexible pad 61, which can be used to buffer the collision between the swing arm body 21 and the obstacle by utilizing the flexible deformation characteristics of the flexible pad 61. The flexible pad 61 is easy to process and simple to assemble. It is only necessary to glue, embed or fix the flexible pad 61 to the outer peripheral wall of the swing arm body 21.

[0090] like Figure 10 As shown, a third groove 122 is provided on the outer peripheral wall of the swing arm body 21 near the side brush 10. The outer contour of the flexible pad 61 is adapted to the inner peripheral wall of the third groove 122. The side of the flexible pad 61 near the swing arm body 21 is embedded in the third groove 122, so that the connection between the flexible pad 61 and the swing arm body 21 is more compact and reliable. An adhesive layer (the adhesive layer can be a structural layer with adhesive function composed of glue, double-sided tape, etc.) can be provided at the bottom of the third groove 122. The adhesive layer is bonded to the side of the flexible pad 61 near the swing arm body 21, thereby improving the connection strength and stability between the flexible pad 61 and the swing arm body 21.

[0091] Along the first direction (the first direction is the direction in which the swing arm 20 rotates from the outward expansion position to the inward contraction position, i.e.) Figure 1 (In the direction indicated by the middle arrow X), the third groove 122 extends from one side of the swing arm body 21 to the other side. The flexible pad 61 includes a first segment 611, a second segment 612, and a third segment 613. The first segment 611 covers one side of the swing arm body 21 along the first direction, the second segment 612 covers the other side of the swing arm body 21 along the first direction, and the third segment 613 is located between the first segment 611 and the second segment 612 and covers the outer peripheral wall of the swing arm body 21 away from the mounting portion 22. The third segment 613 is connected to or integrally formed with the first segment 611 and the second segment 612. Since the opposite sides of the swing arm body 21 along the first direction are more likely to be bumped by obstacles, the first segment 611 and the second segment 612 extend beyond the third groove 122 and protrude from the surface of the swing arm body 21 on the side away from the swing arm body 21, thereby improving the protective capability of the opposite sides of the swing arm body 21 along the first direction. The side of the third segment 613 away from the main body 21 can be flush with the opening of the third groove 122 or protrude from the surface of the main body 21, thereby further improving the buffer protection capability of the end of the main body 21.

[0092] The flexible pad 61 in the embodiment can be at least one of a silica gel pad, a rubber pad, a compressed sponge pad, a foam pad, etc. Impact energy between the swing arm body 21 and the obstacle is absorbed by the flexible pad 61 of the aforementioned type, so as to reduce the collision force of the obstacle on the swing arm body 21, avoid damage to the swing arm body 21, and facilitate processing, occupy small space and have low cost of the flexible pad 61. Of course, the buffer 60 in the embodiment can also be an air bag buffer in addition to the flexible pad 61. The air bag buffer can absorb impact energy by using the compressibility of gas, but the air bag buffer has relatively high cost and is not easy to maintain compared with the flexible pad 61.

[0093] The second embodiment of the utility model further provides a kind of cleaning equipment, please see Figures 1 to 3 And Figure 12 The cleaning equipment includes edge brush module and shell 70. The structure of edge brush module can be referred to the content provided by the first embodiment of the utility model. The swing arm 20 is connected with the shell 70 and makes the edge brush 10 located at the bottom of the shell 70, and the flexible connecting assembly 30 is connected between the swing arm 20 and the shell 70. The edge contour of the cleaning equipment can be the edge contour of the shell 70. In this embodiment, the flexible connecting assembly 30 is connected between the swing arm 20 and the shell 70, and the flexible deformation characteristics of the flexible connecting assembly 30 between the first mode and the second mode are utilized, so that the expansion and recovery of the edge brush 10 can be realized. The cleaning equipment does not need to use additional driving device, has low cost and occupies small volume, so as to reduce the installation space of the edge brush module in the cleaning equipment and save the installation space of the cleaning equipment.

[0094] The swing arm 20 of the edge brush module includes swing arm body 21 and mounting portion 22, and the second through hole 71 is arranged in the shell 70. Along the axial direction of the second through hole 71, the swing arm body 21 is located at the bottom of the shell 70 and is at least partially arranged opposite to the second through hole 71, the edge brush 10 is mounted on the swing arm body 21 away from the bottom of the shell 70, and the mounting portion 22 is rotatably connected with the hole wall of the second through hole 71 and is at least partially connected with the swing arm body 21 through the second through hole 71. Therefore, when the mounting portion 22 of the swing arm 20 is rotatably connected with the cleaning equipment, only one second through hole 71 needs to be arranged in the shell 70 in this embodiment. When assembling, along the axial direction of the second through hole 71, the swing arm body 21 is located at the bottom of the shell 70 and is at least partially arranged opposite to the second through hole 71, the edge brush 10 is mounted on the swing arm body 21 away from the bottom of the shell 70, and the mounting portion 22 is rotatably connected with the hole wall of the second through hole 71 and is at least partially connected with the swing arm body 21 through the second through hole 71, so that the assembly is efficient and convenient.

[0095] The flexible connecting assembly 30 comprises a first connecting piece 31, an elastic element 32 and a second connecting piece 33, and the mounting portion 22 in the embodiment comprises a mounting column 221 and a flange 222. The mounting column 221 is in clearance fit with the second through hole 71 and is connected with the swing arm body 21 by penetrating the second through hole 71, and the flange 222 is arranged on the end of the hole wall of the second through hole 71 away from the swing arm body 21, and the flange 222 can rotate relative to the hole wall of the second through hole 71 along with the mounting column 221. Thus, the mounting portion 22 and the second through hole 71 are rotationally connected in clearance fit at low cost in the embodiment, and the cleaning equipment shell 70 is clamped between the swing arm body 21 and the flange 222 on the mounting column 221, so that the swing arm body 21 does not come off the cleaning equipment shell 70 during rotation, and the compactness and reliability of the assembly structure between the swing arm 20 and the shell 70 are improved. The first connecting piece 31 is arranged on the surface of the flange 222 away from the swing arm body 21, the second connecting piece 33 is arranged on the side of the shell 70 away from the swing arm body 21, and the elastic element 32 is connected between the first connecting piece 31 and the second connecting piece 33, so that the assembly convenience between the flexible connecting assembly 30 and the swing arm 20 and the shell 70 is improved.

[0096] Although the end of the elastic element 32 away from the first connecting piece 31 can be directly welded on the shell 70, the structural strength of the elastic element 32 can be reduced, so the second connecting piece 33 mounted on the shell 70 is connected with the end of the elastic element 32 away from the first connecting piece 31 in the embodiment, so that the structural strength of the elastic element 32 is ensured, and the connection is convenient and low in cost.

[0097] When the elastic element 32 in the embodiment comprises a tension spring, one end of the tension spring in the self-stretching direction is connected with the first connecting piece 31 arranged on the mounting portion 22, and the other end is connected with the second connecting piece 33 on the housing 70. When the swing arm body 21 is in the outwardly expanded position, the distance between the first connecting piece 31 and the second connecting piece 33 is a first distance, and when the swing arm body 21 is in the inwardly retracted position, the distance between the first connecting piece 31 and the second connecting piece 33 is a second distance, and the second distance is greater than the first distance. That is, when the swing arm body 21 is subjected to an external force, in the process of rotating the swing arm body 21 towards the inwardly retracted position, the mounting portion 22 on the swing arm body 21 gradually drives the first connecting piece 31 to move away from the second connecting piece 33, and the tension spring is gradually stretched and finally deformed from the first shape to the second shape. When the external force is removed, the tension spring will have a tendency to recover from the second shape to the first shape under the action of its own elastic force, thereby pulling the mounting portion 22 connected with the first connecting piece 31 to rotate the swing arm body 21 towards the outwardly expanded position until the swing arm body 21 returns to the outwardly expanded position. The switching process of the swing arm body 21 between the outwardly expanded position and the inwardly retracted position does not require the introduction of an additional driving power device, which is more energy-saving and stable and reliable. Moreover, since the adjacent two spiral turns of the tension spring in the first shape are in close contact with each other, the stability of the swing arm body 21 in the outwardly expanded position can be improved.

[0098] The elastic element 32 in the embodiment is provided with a ring 321 at least one end in the self-stretching direction, and the first connecting piece 31 and the second connecting piece 33 at least one of them comprises a connecting block 331. The side of the connecting block 331 away from the elastic element 32 is provided with a limiting groove 311, and the ring 321 is sleeved on the groove wall outside the limiting groove 311 close to the elastic element 32. Thus, the elastic element 32 in the embodiment is sleeved on the groove wall outside the limiting groove 311 close to the elastic element 32 through the ring 321, which not only connects simply and conveniently, but also can limit the ring 321 in the limiting groove 311 through the groove wall of the limiting groove 311 away from the top of the swing arm body 21, so as to avoid the ring 321 from separating from the first connecting piece 31 and the second connecting piece 33, and improve the connection reliability between the elastic element 32 and the first connecting piece 31 and the second connecting piece 33. The ring 321 is connected to the elastic element 32 or integrally arranged with the elastic element 32, such as the elastic element 32 is a tension spring, the ring 321 can be integrally arranged on the tension spring, which is convenient to process, reduces the connection nodes of the flexible connecting assembly 30, and improves the production efficiency.

[0099] As Figure 12As shown, the cleaning device in the embodiment further comprises a stop assembly 73, the stop assembly 73 comprises a first stop portion 731 and a second stop portion 732, both of which are arranged on the shell 70, the first stop portion 731 is used for stopping the swing arm 20 at the outwardly expanded position, and the second stop portion 732 is used for stopping the swing arm 20 at the inwardly retracted position, so as to improve the stability of the swing arm 20 at the outwardly expanded position and the inwardly retracted position, reduce the impact of the swing arm 20 on the shell 70 when the swing arm 20 swings to the corresponding position, and improve the structural stability of the swing arm 20 and the shell 70. The bottom of the shell 70 can be provided with a receiving groove 72, the swing arm 20 is accommodated in the receiving groove 72 when the swing arm 20 is at the inwardly retracted position, and the side of the swing arm 20 provided with the side brush 10 is located outside the receiving groove 72 when the swing arm 20 is at the outwardly expanded position, so as to realize the outward expansion of the side brush 10. The second through hole 71 is arranged at the groove bottom of the receiving groove 72, and the opening 721 is arranged at the outer edge of the shell 70, one side of the opening 721 can be used as the first stop portion, and the inner wall surface of the limiting groove 311 far away from the opening 721 can be used as the second stop portion 732, which is simple and convenient to process. The first stop portion 731 and the second stop portion 732 can also be arranged as corresponding protruding structures to limit the position of the swing arm 20, and the embodiment is not limited in this regard.

[0100] For the purposes of the description hereinafter, the terms "upper", "lower", "right", "left", "rear", "front", "vertical", "horizontal", and derivatives thereof shall relate to the application as oriented in the drawing figures. However, it is to be understood that the application can assume various alternative orientations and, accordingly, such terms are not to be taken as limitations of the present application or any embodiments thereof described herein or is shown in the drawings.

[0101] In addition, it should be noted that the use of "first", "second", and the like words of distinction do not connote any meaning of importance, but are used only to distinguish one element from another. Thus, a "first" element discussed above could be termed a "second" element without departing from the teachings of the present application.

[0102] The above only is the preferred embodiment of the present application, and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A side brush module, characterized in that, The utility model relates to a cleaning device, comprising: a side brush (10); a swing arm (20), the side brush (10) is installed at the bottom of the swing arm (20) and can rotate relative to the swing arm (20), the swing arm (20) is installed at the bottom of the cleaning device and can swing relative to the cleaning device to drive the side brush (10) to move between the inner retracted position, the outer expanded position and the predetermined position, the predetermined position is between the inner retracted position and the outer expanded position, the part of the side brush (10) that extends beyond the edge contour of the cleaning device has a first area, the first area when the side brush (10) is located at the inner retracted position is smaller than the first area when the side brush (10) is located at the outer expanded position; a flexible connecting assembly (30) connected with the swing arm (20), the flexible connecting assembly (30) can reciprocate between a first form and a second form, the flexible connecting assembly (30) in the first form keeps the swing arm (20) at the outer expanded position; when the swing arm (20) is subjected to an external force, the swing arm (20) drives the side brush (10) to move to the inner retracted position or the predetermined position, and drives the flexible connecting assembly (30) to deform from the first form to the second form.

2. The brush module of claim 1, wherein, The flexible connecting assembly (30) comprises: a first connecting piece (31) arranged on the swing arm (20); a resilient element (32) that can reciprocate between the first form and the second form under the action of its own elasticity, one end of the resilient element (32) is connected with the first connecting piece (31) along the extension direction of the resilient element (32).

3. The edge brush module of claim 2, wherein, The resilient element (32) comprises: a tension spring, one end of the tension spring is connected with the first connecting piece (31) along the tension direction of the tension spring, when the tension spring is in the first form, the adjacent two spiral turns of the tension spring are in close contact with each other, when the tension spring is in the second form, the adjacent two spiral turns of the tension spring have a predetermined gap; when the swing arm (20) is in the outer expanded position, the tension spring is in the first form, and in the process that the swing arm (20) rotates towards the inner retracted position under the action of the external force, the tension spring deforms from the first form to the second form; when the external force is removed, in the process that the tension spring deforms from the second form to the first form, the tension spring drives the first connecting piece (31) to move towards the end of the tension spring away from the first connecting piece (31) to drive the swing arm (20) to return to the outer expanded position.

4. The brush module according to any one of claims 2 to 3, characterized in that, The swing arm (20) comprises: a swing arm body (21), the side brush (10) is installed at the bottom of the swing arm body (21); a mounting portion (22) mounted on the side of the swing arm (20) away from the side brush (10), the mounting portion (22) is used for rotating connection with the cleaning device, and the first connecting piece (31) is arranged on the mounting portion (22).

5. The edge brush module of claim 4, wherein, The mounting portion (22) comprises: A mounting column (221) is detachably connected with the swing arm body (21); A flange (222) is protruded on the outer circumferential surface of the mounting column (221), and the first connecting member (31) is arranged on the surface of the flange (222) away from the swing arm body (21).

6. The brush module of claim 5, wherein, A connecting structure (40) is arranged between the mounting part (22) and the swing arm body (21), the mounting column (221) is detachably connected with the swing arm body (21) through the connecting structure (40), and the connecting structure (40) comprises: A convex column (41) is arranged on the surface of the swing arm body (21) close to the mounting column (221), and the convex column (41) is at least partially arranged opposite to the side of the flange (222) close to the swing arm body (21), the flange (222) has a first position close to the convex column (41) and a second position away from the convex column (41) when the mounting column (221) moves; A locking member (42) is arranged to lock the flange (222) at the first position or unlock to the second position.

7. The brush module of claim 6, wherein, A first through hole (2211) is arranged in the mounting column (221), an avoiding groove (2212) is arranged on the outer circumferential wall of the mounting column (221), the avoiding groove (2212) is communicated with the first through hole (2211), the groove bottom of the avoiding groove (2212) away from the swing arm body (21) extends to the side of the flange (222) close to the swing arm (20), and the connecting structure (40) further comprises: A connecting convex (43) is arranged on the surface of the swing arm body (21) close to the mounting column (221), the connecting convex (43) is matched with the first through hole (2211) and at least partially arranged in the first through hole (2211), and the convex column (41) is arranged on the outer side wall of the connecting convex (43) and located in the avoiding groove (2212); and / or, A containing cavity (210) is arranged in the swing arm body (21), a first through hole (2211) is arranged in the mounting column (221), and the edge brush module further comprises a driving assembly (50), the driving assembly (50) comprises: A motor (51) is arranged in the first through hole (2211), the motor (51) comprises a rotating shaft, the rotating shaft is located on the side of the motor (51) close to the swing arm body (21) and at least partially arranged in the containing cavity (210); A transmission system (52) is arranged in the containing cavity (210), the transmission system (52) is drivingly connected between the rotating shaft and the edge brush (10), and the motor (51) drives the transmission system (52) to drive the edge brush (10) to rotate; and / or, The edge brush module further comprises: A buffer (60) is arranged at least on the outer circumferential wall of the swing arm body (21) near the side of the brush (10).

8. A cleaning apparatus, characterized by Comprise: The side brush module of any one of claims 1-7; A housing (70) is connected with the swing arm (20) and the side brush (10) is located at the bottom of the housing (70), and a flexible connecting assembly (30) is connected between the swing arm (20) and the housing (70).

9. The cleaning apparatus of claim 8, wherein, The swing arm (20) comprises a swing arm body (21) and a mounting portion (22), and the housing (70) is provided with a second through hole (71); Along the axial direction of the second through hole (71), the swing arm body (21) is located at the bottom of the housing (70) and is at least partially arranged opposite to the second through hole (71), the side brush (10) is mounted on the swing arm body (21) away from the bottom of the housing (70), and the mounting portion (22) is rotationally connected with the hole wall of the second through hole (71) and is at least partially connected with the swing arm body (21) through the second through hole (71).

10. The cleaning apparatus of claim 9, wherein, The flexible connecting assembly (30) comprises a first connecting piece (31), an elastic element (32), and a second connecting piece (33), and the mounting portion (22) comprises a mounting column (221) and a flange (222); Wherein, the mounting column (221) is gap-fitted with the second through hole (71) and connected with the swing arm body (21) through the second through hole (71), the flange (222) is arranged on the hole wall of the second through hole (71) away from the swing arm body (21), and the flange (222) can rotate with the mounting column (221) relative to the hole wall of the second through hole (71), the first connecting piece (31) is arranged on the surface of the flange (222) away from the swing arm body (21), the second connecting piece (33) is arranged on the side of the housing (70) away from the swing arm body (21), and the elastic element (32) is connected between the first connecting piece (31) and the second connecting piece (33); and / or, At least one of the first connecting piece (31) and the second connecting piece (33) comprises a connecting block (331), and the connecting block (331) is provided with a limiting groove (311) on the side away from the elastic element (32); and / or A stop assembly (73) comprises a first stop portion (731) and a second stop portion (732), both of which are arranged on the housing (70), the first stop portion (731) is used to stop the swing arm (20) at the outwardly expanded position, and the second stop portion (732) is used to stop the swing arm (20) at the inwardly retracted position.

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