Adjustable side brush mechanism and side brush device

Abstract

The utility model provides an adjustable side brush mechanism and a side brush device. The adjustable side brush mechanism comprises a mounting assembly, a side brush assembly and a pushing assembly. The side brush assembly comprises a connecting piece and a sweeping piece, the connecting piece is rotationally connected to the mounting assembly, the connecting piece is provided with two matching parts, the two matching parts are oppositely arranged in the circumferential direction of the connecting piece, an included angle is formed between the two matching parts, the sweeping piece is connected to the connecting piece, and an included angle is formed between the sweeping piece and the connecting piece; and the pushing assembly and the mounting assembly can rotate relatively, part of the pushing assembly is located in the included angle between the two matching parts, and when the pushing assembly and the mounting assembly rotate relatively, one matching part is pushed, so that the connecting piece rotates on the mounting assembly. Therefore, the machining difficulty is reduced, the machining efficiency is improved, the assembling difficulty is reduced, and the assembling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sweeping robot, in particular to adjustable brush mechanism and brush device. BACKGROUND

[0002] When cleaning robots clean hidden areas such as corners, the brush mechanism plays a crucial role. This mechanism drives the brush to rotate through a rotating component, ensuring efficient cleaning.

[0003] The brush mechanism is often equipped with a lifting component that can flexibly drive the brush to adjust its height. When the compaction of the brush needs to be adjusted to meet different cleaning needs, the lifting component can adjust the height of the brush in time. When the brush is not needed for cleaning, such as when passing through carpets, liquid stains, dust stains, or obstacles, the lifting component will retract the brush to avoid unnecessary contact and wear. For example, the brush lifting device disclosed in CN118303807A demonstrates an improvement in this technology. However, the lifting component needs to occupy a certain lifting space when driving the brush up and down, resulting in a larger size of the robot in the thickness direction.

[0004] To address the issue of lifting component occupying lifting space, a patent application with application number 2024227121742 and application date November 7, 2024 proposes an innovative adjustable brush mechanism. This mechanism drives the brush to lift through the self-rotation of the rotating structure (i.e., the improved lifting component), eliminating the need to reserve lifting space for the lifting component in the thickness direction of the robot, significantly reducing the occupied space of the robot in this direction.

[0005] Referring to the Figure 4 As a preferred way, a face gear is provided on the lifting component, and a cylindrical gear is provided on the brush, which are closely meshed to connect the lifting component and the brush in transmission.

[0006] However, this design still has room for improvement. On the one hand, the complexity of the gear structure increases the complexity of processing, requiring higher precision, which is not conducive to reducing processing difficulty and improving processing efficiency. On the other hand, the meshing of the gear requires precise centering and transmission ratio, and even a slight deviation in the installation angle can lead to a decrease in transmission efficiency, an increase in noise, or even damage to the gear. That is, the installation angle has a significant impact on the performance and lifespan of the gear, and the installation angle of the face gear and cylindrical gear must be controlled very precisely, which requires strict assembly precision, making it difficult to reduce assembly difficulty and improve assembly efficiency.

[0007] Therefore, although the above-mentioned solution solves the problem of lifting component occupying lifting space, there is still room for optimization in terms of processing and assembly to further reduce difficulty and improve efficiency. The utility model discloses the technical scheme of the adjustable edge brush mechanism and the edge brush device, and the technical scheme has the advantages of the following:

[0008] The utility model discloses a kind of adjustable edge brush mechanism and edge brush device, which can reduce processing difficulty, improve processing efficiency, reduce assembly difficulty, and improve assembly efficiency.

[0009] The utility model discloses the technical scheme of the adjustable edge brush mechanism and the edge brush device, and the technical scheme has the advantages of the following:

[0010] A kind of adjustable edge brush mechanism, comprising:

[0011] Mounting assembly;

[0012] Edge brush assembly, including connecting piece and cleaning piece, the connecting piece is rotatably connected to the mounting assembly, the connecting piece is equipped with two cooperation parts, two The cooperation part is oppositely arranged in the circumference of the connecting piece, and the cooperation part between two has an included angle, the cleaning piece is connected to the connecting piece, and the cleaning piece and the connecting piece have an included angle between them;And

[0013] Pushing assembly, with the mounting assembly can relatively rotate, part of the pushing assembly is located in the included angle between two cooperation parts, the pushing assembly pushes one of the cooperation parts when relatively rotating with the mounting assembly, so that the connecting piece rotates on the mounting assembly.

[0014] In some embodiments, the pushing assembly is coaxially arranged with the mounting assembly, and the pushing assembly can rotate relative to the mounting assembly.

[0015] In some embodiments, each cooperation part is provided with a cooperation surface, and the cooperation surfaces of two cooperation parts are oppositely arranged in the circumference of the connecting piece, and the cooperation surfaces of two cooperation parts have an included angle between them, part of the pushing assembly is located in the included angle between the cooperation surfaces of two cooperation parts, and the pushing assembly pushes the cooperation surface when relatively rotating with the mounting assembly, so that the connecting piece rotates on the mounting assembly.

[0016] In some embodiments, the pushing assembly is provided with a pushing member adjacent to one side of the connecting piece, and the pushing member is provided with a pushing surface, and the pushing surface is located in the included angle between two cooperation parts, and when the pushing assembly relatively rotates with the mounting assembly, the pushing surface pushes the cooperation part to make the connecting piece rotate.

[0017] In some embodiments, each of the fitting portions is provided with a fitting surface, and the fitting surfaces of the two fitting portions have an included angle; the pushing assembly is provided with a pushing member adjacent to one side of the connecting member, and the pushing member is provided with a pushing surface, which is located within the included angle between the fitting surfaces of the two fitting portions; when the pushing assembly rotates relative to the mounting assembly, the pushing surface pushes the fitting surface to make the connecting member rotate.

[0018] In some embodiments, the adjustable side brush mechanism further comprises a limiting structure for limiting the rotation stroke of the connecting member, so that the cleaning member can switch between the cleaning position and the stowed position.

[0019] In some embodiments, when the cleaning member is in the cleaning position and / or the stowed position, the angle between the force acting on the pushing assembly by the fitting portion and the axis of the pushing assembly is ≤20 degrees.

[0020] In some embodiments, when the cleaning member is in the cleaning position and / or the stowed position, the angle between the force acting on the pushing assembly by the fitting portion and the axis of the pushing assembly is ≤10 degrees.

[0021] In some embodiments, the adjustable side brush mechanism further comprises a transmission member in transmission connection with one of the mounting assembly and the pushing assembly, and the transmission member is used to drive one of the mounting assembly and the pushing assembly to make the mounting assembly rotate relative to the pushing assembly.

[0022] The adjustable side brush mechanism further comprises a damping assembly connected to the other one of the mounting assembly and the pushing assembly, and the damping assembly is used to prevent the mounting assembly and the pushing assembly from rotating synchronously when adjusting the cleaning member.

[0023] A side brush device comprises the adjustable side brush mechanism of any of the above embodiments, and the side brush device further comprises a rotary driving assembly in transmission connection with one of the mounting assembly and the pushing assembly.

[0024] Compared with the prior art, the adjustable side brush mechanism has at least the following advantages:

[0025] 1. The mounting assembly and the pushing assembly rotate relative to each other, and the pushing assembly pushes the connecting member to rotate on the mounting assembly. Since the cleaning member and the connecting member have an included angle, the cleaning member will swing when the connecting member rotates. When the cleaning member swings, the cleaning member moves away from or approaches the to-be-passed surface, i.e., the cleaning member is lifted or lowered, which not only enables the cleaning member to switch between the cleaning position and the stowed position, but also adjusts the compaction degree of the cleaning member on the to-be-passed surface.

[0026] 2. Since the relative rotation of the pushing component and the mounting component will not cause any lifting or lowering movement, there is no need to reserve lifting space for the pushing component and the mounting component, that is, there is no need to reserve lifting space for the structure that drives the cleaning component to lift and lower, which reduces the space occupied by the sweeping robot in the thickness direction and is conducive to the flattening of the sweeping robot.

[0027] 3. The pushing component pushes the connecting piece to realize the action of the cleaning piece. The transmission structure between the pushing component and the connecting piece does not involve complicated gear meshing, shaft arrangement or transmission ratio calculation. Therefore, compared with the gear structure, the transmission structure between the pushing component and the connecting piece is relatively simple, which reduces the processing difficulty and improves the processing efficiency.

[0028] 4. Since the transmission structure between the pushing component and the connecting part is relatively simple, and the installation angle has little effect on the above transmission structure, the pushing component and the connecting part have a high tolerance in terms of installation angle. Even if there is a certain installation deviation, it will not have a significant impact on the overall performance, making the assembly requirements relatively loose, reducing the assembly difficulty and improving the assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 This is a schematic structural diagram of the adjustable side brush mechanism according to an embodiment of the present utility model;

[0031] Figure 2 for Figure 1 An exploded view of the adjustable side brush mechanism is shown;

[0032] Figure 3 for Figure 1 A partial cross-sectional view of the adjustable side brush mechanism shown in the cleaning position;

[0033] Figure 4 for Figure 1 A partial cross-sectional view of the adjustable side brush mechanism is shown in the stowed position.

[0034] Figure numerals: 10, adjustable side brush mechanism; 100, mounting assembly; 110, first shell; 120, second shell; 101, rotating hole; 102, limiting area; 200, side brush assembly; 210, connecting member; 211, mating part; 2111, mating surface; 220, cleaning member; 300, pushing assembly; 310, pushing member; 311, pushing surface; 400, limiting structure; 500, transmission member. DETAILED DESCRIPTION

[0035] For the purpose of facilitating the understanding of the present application, the present application will be described in more detail below with reference to the attached drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. The purpose of providing these embodiments is to make the reader more thoroughly and comprehensively understand the present application.

[0036] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and are not intended to be the only embodiment.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the present application. As used in the description herein and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0038] In order to better understand the technical scheme and beneficial effects of the present application, the present application will be further described in detail below in conjunction with specific embodiments:

[0039] Please refer to Figures 1 to 3 The adjustable side brush mechanism 10 of an embodiment comprises a mounting assembly 100, a side brush assembly 200 and a pushing assembly 300. It should be noted that "assembly" is not limited to the number of parts, and "assembly" can be composed of multiple parts or a single part.

[0040] The edge brush assembly 200 comprises a connecting member 210 and a cleaning member 220. The connecting member 210 is rotationally connected to the mounting assembly 100, i.e. the connecting member 210 can rotate on the mounting assembly 100. The connecting member 210 is provided with two cooperating portions 211 which are oppositely arranged in the circumferential direction of the connecting member 210 and have an included angle therebetween, i.e. the two cooperating portions 211 are not parallel. The cleaning member 220 is connected to the connecting member 210 and has an included angle with the connecting member 210, i.e. the cleaning member 220 is not parallel to the connecting member 210. The pushing assembly 300 is relatively rotatable with the mounting assembly 100, and a part of the pushing assembly 300 is located within the included angle between the two cooperating portions 211. When the pushing assembly 300 is relatively rotated with the mounting assembly 100, one of the cooperating portions 211 is pushed, so that the connecting member 210 rotates on the mounting assembly 100. When the connecting member 210 rotates on the mounting assembly 100, the cleaning member 220 swings due to the inclination of the cleaning member 220 to the connecting member 210. The cleaning member 220 has a cleaning portion for cleaning the surface to be passed through, and the cleaning portion can be a brush, a woven fabric structure, a silica gel structure, a rubber structure or any other structure which can be used for cleaning.

[0041] As shown in Figures 2 to 4 , when the cleaning member 220 swings, the cleaning member 220 moves towards or away from the surface to be passed through, so that the cleaning member 220 can be switched between a cleaning position and a retracted position, i.e. the cleaning member 220 can be in contact with or separated from the surface to be passed through. Specifically, when the cleaning member 220 is in the cleaning position as shown in Figure 3 , if the pushing assembly 300 rotates on the mounting assembly 100 in direction A, at this time the pushing assembly 300 pushes one of the cooperating portions 211, so that the connecting member 210 rotates in direction B. After the cleaning member 220 is lifted to the retracted position as shown in Figure 4 , the pushing assembly 300 and the mounting assembly 100 stop relative rotation; when the cleaning member 220 is in the retracted position as shown in Figure 4 , if the pushing assembly 300 rotates on the mounting assembly 100 in direction a which is opposite to direction A, at this time the pushing assembly 300 pushes the other cooperating portion 211, so that the connecting member 210 rotates in direction b which is opposite to direction B, and then the cleaning member 220 is lowered. After the cleaning member 220 is lowered to the cleaning position as shown in Figure 3 , the pushing assembly 300 and the mounting assembly 100 stop relative rotation.

[0042] It can be understood that the surface to be passed through is the surface that the edge brush assembly 200 is about to pass through or is passing through. The surface to be passed through can be not only a carpet, a tile, a cement road or other existing ground surfaces, but also a table top, a stage surface, a wall surface or other existing surfaces that need to be cleaned. It can also be understood that the cleaning position is the position at which the cleaning piece 220 can contact the surface to be passed through, and the retracted position is the position at which the cleaning piece 220 is separated from the surface to be passed through.

[0043] In addition, as shown in Figure 2 The cleaning piece 220 moves towards or away from the surface to be passed through, and can also change the compaction degree of the cleaning piece 220 on the surface to be passed through. That is, when the cleaning piece 220 swings away from the surface to be passed through, if the cleaning piece 220 continues to contact the surface to be passed through at this time, the compaction degree of the cleaning piece 220 on the surface to be passed through will decrease; conversely, when the cleaning piece 220 swings towards the surface to be passed through, if the cleaning piece 220 continues to contact the surface to be passed through at this time, the compaction degree of the cleaning piece 220 on the surface to be passed through will increase.

[0044] As shown in Figures 2 to 4 Specifically, when the cleaning piece 220 contacts the surface to be passed through, if it is desired to decrease the compaction degree of the cleaning piece 220, the pushing assembly 300 rotates relative to the mounting assembly 100 in direction A, at this time the pushing assembly 300 pushes one of the cooperating parts 211, so that the connecting piece 210 rotates in direction B, and then the cleaning piece 220 is lifted. After the compaction degree of the cleaning piece 220 decreases to a predetermined value, the pushing assembly 300 and the mounting assembly 100 stop relative rotation. If it is desired to increase the compaction degree of the cleaning piece 220, the pushing assembly 300 rotates relative to the mounting assembly 100 in direction a, which is opposite to direction A, at this time the pushing assembly 300 pushes the other cooperating part 211, so that the connecting piece 210 rotates in direction b, which is opposite to direction B, and then the cleaning piece 220 is lowered. After the compaction degree of the cleaning piece 220 increases to a predetermined value, the pushing assembly 300 and the mounting assembly 100 stop relative rotation.

[0045] The adjustable edge brush mechanism 10 described above rotates the pushing assembly 300 relative to the mounting assembly 100, so that the pushing assembly 300 pushes the connecting piece 210 to rotate on the mounting assembly 100. Since there is an included angle between the cleaning piece 220 and the connecting piece 210, the cleaning piece 220 swings when the connecting piece 210 rotates. When the cleaning piece 220 swings, the cleaning piece 220 moves towards or away from the surface to be passed through, that is, the cleaning piece 220 is lifted or lowered. This not only enables the cleaning piece 220 to switch between the cleaning position and the retracted position, but also adjusts the compaction degree of the cleaning piece 220 on the surface to be passed through.

[0046] Since the relative rotation of the pushing assembly 300 and the mounting assembly 100 does not have a lifting action, the pushing assembly 300 and the mounting assembly 100 do not need to reserve a lifting space, i.e., the structure for lifting the cleaning member 220 does not need to reserve a lifting space, which reduces the occupied space of the sweeping robot in the thickness direction and is beneficial to the flattening of the sweeping robot.

[0047] The pushing assembly 300 pushes the connecting member 210 to realize the action of the cleaning member 220, and the transmission structure between the pushing assembly 300 and the connecting member 210 does not involve complex gear meshing, shaft arrangement or transmission ratio calculation, so compared with the gear structure, the transmission structure between the pushing assembly 300 and the connecting member 210 is relatively simple, which reduces the processing difficulty and improves the processing efficiency.

[0048] Since the transmission structure between the pushing assembly 300 and the connecting member 210 is relatively simple, and the installation angle has less influence on the above-mentioned transmission structure, the fault tolerance of the pushing assembly 300 and the connecting member 210 in terms of installation angle is relatively high, i.e., even if there is a certain installation deviation, it will not have a significant impact on the overall performance, so that the assembly requirement is relatively loose, which reduces the assembly difficulty and improves the assembly efficiency.

[0049] As shown in Figure 1 In some embodiments, the mounting assembly 100 includes two housings, i.e., a first housing 110 and a second housing 120, the first housing 110 is connected with the second housing 120, the first housing 110 and the second housing 120 are closed to form a rotating hole 101, and the connecting member 210 is rotationally connected in the rotating hole 101. In this embodiment, the connecting member 210 is rotationally connected to the mounting assembly 100, the connecting member 210 is connected to one of the housings, and then one of the housings is connected to the other housing, so that the fitting part 211 does not interfere with the installation of the connecting member 210, and the connecting member 210 is smoothly rotationally connected to the mounting assembly 100.

[0050] As shown in Figure 1 and Figure 2As shown, in some embodiments, the pushing assembly 300 is coaxially arranged with the mounting assembly 100, that is, the axis of the pushing assembly 300 coincides with the axis of the mounting assembly 100, and the pushing assembly 300 can rotate relative to the mounting assembly 100. In this embodiment, when the pushing assembly 300 and the mounting assembly 100 rotate relative to each other, at least the following situations exist: 1. The pushing assembly 300 rotates while the mounting assembly 100 is stationary; 2. The pushing assembly 300 is stationary while the mounting assembly 100 rotates; 3. The pushing assembly 300 and the mounting assembly 100 both rotate, but in opposite directions; 4. The pushing assembly 300 and the mounting assembly 100 both rotate, but in the same direction, but at different speeds. Since the pushing assembly 300 and the mounting assembly 100 are coaxially arranged, when the two rotate relative to each other, neither the pushing assembly 300 nor the mounting assembly 100 will produce translational or linear motion, so that the adjustable side brush mechanism 10 occupies a smaller space, further improving the structural compactness of the adjustable side brush mechanism 10, which is conducive to the miniaturization of the sweeping robot.

[0051] It can be understood that in the field of mechanics, when a rotating component rotates around a fixed straight line, the straight line is called an axis or a rotation axis.

[0052] It should be noted that, in other embodiments, the axis of the pushing assembly 300 may also form an angle with the axis of the mounting assembly 100. Preferably, the axis of the pushing assembly 300 is perpendicular to the axis of the mounting assembly 100. Of course, the angle between the axis of the pushing assembly 300 and the axis of the mounting assembly 100 is not limited to 90°; the angle between the axis of the pushing assembly 300 and the axis of the mounting assembly 100 may also be 50°, 60°, 80°, 100°, or any other angle.

[0053] like Figure 3 As shown, in some embodiments, each mating portion 211 is provided with a mating surface 2111, which may be an arcuate surface or a flat surface. The mating surfaces 2111 of the two mating portions 211 are arranged opposite each other in the circumferential direction of the connector 210, and an angle is formed between the mating surfaces 2111 of the two mating portions 211. Part of the pushing assembly 300 is located within the angle between the mating surfaces 2111 of the two mating portions 211. When the pushing assembly 300 rotates relative to the mounting assembly 100, the pushing assembly 300 pushes the mating surface 2111, causing the connector 210 to rotate on the mounting assembly 100. In this embodiment, because the pushing assembly 300 pushes the mating surface 2111, the connector 210 contacts the pushing assembly 300 through the surface, reducing the stress exerted on the pushing assembly 300 by the mating portion 211, delaying the wear of the pushing assembly 300, and extending the service life of the pushing assembly 300. At the same time, the smoothness of the mating between the mating portion 211 and the pushing assembly 300 is improved.

[0054] It is understood that the mating portion 211 is not limited to contacting the pushing assembly 300 through the mating surface 2111. The mating portion 211 may also contact the pushing assembly 300 through other structures. For example, in other embodiments, the mating surface 2111 may be replaced with a mating edge, a mating protrusion, or other existing structures that can withstand thrust.

[0055] It is also understandable that the mating portion 211 is not limited to a physical structure. For example, in some embodiments, each mating portion 211 is a mating surface 2111 , that is, each mating portion 211 is a surface structure.

[0056] like Figure 3 As shown, in some embodiments, the angle between the first mating surface 2111 and the second mating surface 2111 is 40° to 60°. In this embodiment, the angle between the first mating surface 2111 and the second mating surface 2111 can be 40°, 50°, 60°, or any angle between 40° and 60°. When the angle between the first mating surface 2111 and the second mating surface 2111 is 40° to 60°, the pushing assembly 300 only needs to rotate at a smaller angle relative to the mounting assembly 100 to achieve a larger angle of rotation of the connecting member 210, thereby improving the efficiency of adjusting the side brush assembly 200.

[0057] Of course, in other embodiments, the angle between the first mating surface 2111 and the second mating surface 2111 can also be 20°, 90°, 110°, 150°, or other angles that ensure that the first mating surface 2111 and the second mating surface 2111 are not parallel to each other.

[0058] like Figure 3 As shown, in some embodiments, a pushing member 310 is provided on a side of the pushing assembly 300 adjacent to the connecting member 210. The pushing member 310 has a pushing surface 311 located within the angle between the two mating portions 211. When the pushing assembly 300 and the mounting assembly 100 rotate relative to each other, the pushing surface 311 pushes the mating portions 211 to cause the connecting member 210 to rotate. In this embodiment, because the pushing assembly 300 contacts the mating portions 211 through the surface, the stress exerted by the pushing assembly 300 on the mating portions 211 is reduced, the wear of the mating portions 211 is delayed, the service life of the mating portions 211 is extended, and the smoothness of the mating portion 211 and the pushing assembly 300 is improved.

[0059] In order to limit the rotational travel of the connecting member 210, so as to ensure that the cleaning member 220 can stay in the cleaning position and the stowed position, as shown in FIG. Figure 3As shown, in some embodiments, the adjustable brush mechanism 10 further comprises a limiting structure for limiting the rotation of the connecting member 210, so that the cleaning member 220 can be switched between the cleaning position and the stowed position. In this embodiment, during the switching of the cleaning member 220 from the cleaning position to the stowed position, the connecting member 210 rotates towards direction B to swing the cleaning member 220 to the stowed position, and when the cleaning member 220 swings to the stowed position, the limiting structure prevents the connecting member 210 from continuing to rotate towards direction B, so that the cleaning member 220 stays in the stowed position. During the switching of the cleaning member 220 from the stowed position to the cleaning position, the connecting member 210 rotates towards direction b to swing the cleaning member 220 to the cleaning position, and when the cleaning member 220 swings to the cleaning position, the limiting structure prevents the connecting member 210 from continuing to rotate towards direction b, so that the cleaning member 220 stays in the cleaning position.

[0060] In some embodiments, the connecting member 210 is provided with a limiting area, and the limiting structure is connected to the mounting assembly 100 and located in the limiting area. In this embodiment, during the switching of the cleaning member 220 from the cleaning position to the stowed position, the connecting member 210 rotates towards direction B to swing the cleaning member 220 to the stowed position, and when the cleaning member 220 swings to the stowed position, the limiting structure abuts against one of the inner walls of the limiting area to prevent the connecting member 210 from continuing to rotate towards direction B, so that the cleaning member 220 stays in the stowed position. During the switching of the cleaning member 220 from the stowed position to the cleaning position, the connecting member 210 rotates towards direction b to swing the cleaning member 220 to the cleaning position, and when the cleaning member 220 swings to the cleaning position, the limiting structure abuts against the other inner wall of the limiting area to prevent the connecting member 210 from continuing to rotate towards direction b, so that the cleaning member 220 stays in the cleaning position. It can be understood that the limiting area can be a groove, a notch or other structure capable of limiting rotation.

[0061] Of course, in other embodiments, the limiting area and the limiting structure can be reversed, i.e. the mounting assembly 100 is provided with the limiting area, and the limiting structure is provided on the connecting member 210 and located in the limiting area. The working principle of this embodiment is the same as the above-mentioned embodiments, which will not be described here.

[0062] As shown, in some embodiments, the adjustable brush mechanism 10 further comprises a limiting structure for limiting the rotation of the connecting member 210, so that the cleaning member 220 can be switched between the cleaning position and the stowed position. In this embodiment, during the switching of the cleaning member 220 from the cleaning position to the stowed position, the connecting member 210 rotates towards direction B to swing the cleaning member 220 to the stowed position, and when the cleaning member 220 swings to the stowed position, the limiting structure prevents the connecting member 210 from continuing to rotate towards direction B, so that the cleaning member 220 stays in the stowed position. During the switching of the cleaning member 220 from the stowed position to the cleaning position, the connecting member 210 rotates towards direction b to swing the cleaning member 220 to the cleaning position, and when the cleaning member 220 swings to the cleaning position, the limiting structure prevents the connecting member 210 from continuing to rotate towards direction b, so that the cleaning member 220 stays in the cleaning position. Figure 3 As shown, in some embodiments, the adjustable brush mechanism 10 further comprises a limiting structure for limiting the rotation of the connecting member 210, so that the cleaning member 220 can be switched between the cleaning position and the stowed position. In this embodiment, during the switching of the cleaning member 220 from the cleaning position to the stowed position, the connecting member 210 rotates towards direction B to swing the cleaning member 220 to the stowed position, and when the cleaning member 220 swings to the stowed position, the limiting structure prevents the connecting member 210 from continuing to rotate towards direction B, so that the cleaning member 220 stays in the stowed position. During the switching of the cleaning member 220 from the stowed position to the cleaning position, the connecting member 210 rotates towards direction b to swing the cleaning member 220 to the cleaning position, and when the cleaning member 220 swings to the cleaning position, the limiting structure prevents the connecting member 210 from continuing to rotate towards direction b, so that the cleaning member 220 stays in the cleaning position.

[0063] In some other embodiments, the pushing assembly 300 is provided with a limiting area, the limiting structure is provided on the mounting assembly 100, and the limiting structure is movably provided in the limiting area. The working principle of this embodiment is the same as that of the above embodiment and will not be described in detail here.

[0064] like Figure 4 As shown, it can be understood that when the cleaning member 220 is in the retracted position, since the cleaning member 220 is located at the bottom of the body, garbage or obstacles on the passing surface can easily touch the cleaning member 220, causing the cleaning member 220 to be more susceptible to external forces. Once the external force acts on the cleaning member 220, the external force may drive the connecting member to rotate in the direction b, causing the cleaning member 220 to drop unexpectedly.

[0065] In order to prevent the cleaning member 220 from accidentally dropping after being folded, the motor for driving the side brush assembly 200 and the mounting assembly 100 to rotate relative to each other needs to be continuously energized after the cleaning member 220 is folded so that the motor locks the side brush assembly 200, but this will result in an increase in the heat generated by the motor and power consumption.

[0066] In order to avoid the cleaning member 220 from falling accidentally and to avoid the increase of heat generation and power consumption of the motor, as Figure 4 As shown, in some embodiments, when the cleaning member 220 is in the retracted position, the connecting member 210 abuts against one of the mating portions 211, and the angle between the force F1 exerted by the corresponding mating portion 211 on the pushing assembly 300 and the axis of the pushing assembly 300 is ≤20 degrees. Due to this small angle, the force F1 is nearly parallel to the axis of the pushing assembly 300, thereby enabling the cleaning member 220 to achieve self-locking, that is, the pushing assembly 300 cannot be reverse-driven by the side brush assembly 200. When the mating portion 211 or the pushing assembly 300 is made of a rubber material with a large friction coefficient, this angle is preferably less than 20 degrees; when the mating portion 211 and the pushing assembly 300 are both made of metal materials, this angle is preferably less than 10 degrees; when the mating portion 211 or the pushing assembly 300 is made of plastic material, this angle is preferably less than 5 degrees. In short, the selection of this angle is related to the friction coefficient and is not limited in this application.

[0067] like Figure 4 As shown, in this embodiment, when the cleaning member 220 is in the stowed position, even if an external force has the tendency to drive the connecting member 210 to rotate in direction b, because the force F1 exerted by the corresponding mating portion 211 on the pushing assembly 300 is nearly parallel to the axis of the pushing assembly 300, the corresponding mating portion 211 cannot drive the pushing assembly 300 to rotate. This avoids the problem of the side brush assembly 200 reversely driving the pushing assembly 300, and further avoids the problem of the cleaning member 220 being accidentally lowered due to external force, thus achieving self-locking of the side brush assembly 200 in the stowed position. Moreover, the motor does not need to be powered when the side brush assembly 200 is self-locked, which reduces the heat generation and power consumption of the motor.

[0068] As shown in Figure 3 some embodiments, when the cleaning member 220 is in the cleaning position, the connecting member 210 is in abutment with the other cooperating part 211, and the angle between the force F2 acting on the pushing assembly 300 by the corresponding cooperating part 211 and the axis of the pushing assembly 300 is ≤ 20 degrees. Due to the small angle, the force F2 is close to parallel with the axis of the pushing assembly 300, so that the cleaning member 220 can be self-locked, i.e. the pushing assembly 300 cannot be reversely driven by the side brush assembly 200. When the cooperating part 211 or the pushing assembly 300 is made of rubber material with a large friction coefficient, the angle is preferably ≤ 20 degrees; when the cooperating part 211 and the pushing assembly 300 are both made of metal material, the angle is preferably ≤ 10 degrees; when the cooperating part 211 or the pushing assembly 300 is made of plastic material, the angle is preferably ≤ 5 degrees. In general, the angle is related to the friction coefficient, and the present application does not make any limitation.

[0069] As shown in Figure 3 some embodiments, when the cleaning member 220 is in the cleaning position, even if the external force has a tendency to drive the connecting member 210 to rotate in the direction B, the corresponding cooperating part 211 cannot drive the pushing assembly 300 to rotate due to the force F2 acting on the pushing assembly 300 being close to parallel with the axis of the pushing assembly 300, thereby avoiding the problem that the side brush assembly 200 reversely drives the pushing assembly 300, and further avoiding the problem that the external force drives the cleaning member 220 to unexpectedly descend, so that the side brush assembly 200 is self-locked in the cleaning position. Moreover, the motor does not need to be energized when the side brush assembly 200 is self-locked, thereby reducing the heat generation and power consumption of the motor.

[0070] As shown in Figure 1 and Figure 2 some embodiments, the adjustable side brush mechanism 10 further comprises a transmission member 500, the transmission member 500 is in transmission connection with one of the mounting assembly 100 and the pushing assembly 300, and the transmission member 500 is used to drive one of the mounting assembly 100 and the pushing assembly 300 to relatively rotate with the other. Preferably, the transmission member 500 is a transmission shaft.

[0071] As shown in Figure 1 and Figure 2 further, the transmission member 500, the mounting assembly 100 and the pushing assembly 300 are coaxially arranged, so that the transmission member 500, the mounting assembly 100 and the pushing assembly 300 all do not have translational or linear motion during rotation, thereby improving the compactness of the adjustable side brush mechanism 10 and being beneficial to the miniaturization of the sweeping robot.

[0072] In some embodiments, the transmission member 500 is fixedly connected with the pushing assembly 300, so that the transmission member 500 is used to drive the pushing assembly 300 to rotate, and then the pushing assembly 300 rotates relative to the mounting assembly 100.

[0073] As shown in FIGS. 1 and 2, in some embodiments, the transmission member 500 is fixedly connected with the mounting assembly 100, so that the transmission member 500 is used to drive the mounting assembly 100 to rotate, and then the pushing assembly 300 rotates relative to the mounting assembly 100. Figure 1 Figure 2 As shown in FIGS. 1 and 2, in some embodiments, the transmission member 500 is fixedly connected with the mounting assembly 100, so that the transmission member 500 is used to drive the mounting assembly 100 to rotate, and then the pushing assembly 300 rotates relative to the mounting assembly 100.

[0074] In some embodiments, the adjustable brush mechanism 10 further comprises a damping assembly (not shown in the figures), which is connected with the other one of the mounting assembly 100 and the pushing assembly 300, and is used to prevent the mounting assembly 100 and the pushing assembly 300 from rotating synchronously when the cleaning member 220 is adjusted, so that the pushing assembly 300 can push the fitting part 211 to enable the connecting member 210 to rotate on the mounting assembly 100.

[0075] As shown in FIGS. 1 and 2, in some embodiments, the transmission member 500 is fixedly connected with the mounting assembly 100, so that the transmission member 500 is used to drive the mounting assembly 100 to rotate, and then the pushing assembly 300 rotates relative to the mounting assembly 100. Figure 1 Figure 2 As shown in FIGS. 1 and 2, in some embodiments, the transmission member 500 is fixedly connected with the mounting assembly 100, so that the transmission member 500 is used to drive the mounting assembly 100 to rotate, and then the pushing assembly 300 rotates relative to the mounting assembly 100.

[0076] As shown in FIGS. 1 and 2, in some embodiments, the transmission member 500 is fixedly connected with the mounting assembly 100, so that the transmission member 500 is used to drive the mounting assembly 100 to rotate, and then the pushing assembly 300 rotates relative to the mounting assembly 100. Figure 1 Figure 2 As shown in FIGS. 1 and 2, in some embodiments, the transmission member 500 is fixedly connected with the mounting assembly 100, so that the transmission member 500 is used to drive the mounting assembly 100 to rotate, and then the pushing assembly 300 rotates relative to the mounting assembly 100.

[0077] ​​​Similarly, in the process of switching the cleaning member 220 from the stowed position to the cleaning position, the transmission member 500 is self-rotated in the second direction synchronously with the driving assembly, the second direction is opposite to the first direction, so that the pushing assembly 300 is self-rotated in the direction a relative to the mounting assembly 100, the direction a is opposite to the direction A, at this time, the pushing assembly 300 pushes the other cooperating part 211, the connecting member 210 is self-rotated in the direction b, the direction b is opposite to the direction B, so as to drive the cleaning member 220 to swing to the cleaning position, when the cleaning member 220 swings to the cleaning position, the limiting structure blocks the connecting member 210 from continuing to rotate in the direction b, so that the cleaning member 220 stays in the cleaning position; with the continuous self-rotation of the transmission member 500 in the second direction, the driving assembly drives the driven assembly to overcome the locking force of the damping assembly, so that the driving assembly and the driven assembly are synchronously rotated, that is, the mounting assembly 100 and the pushing assembly 300 are synchronously self-rotated.

[0078] Since the mounting assembly 100 and the pushing assembly 300 are synchronously self-rotated after switching the position of the cleaning member 220, whether the mounting assembly 100 or the pushing assembly 300 is the driving assembly, the transmission member 500 can drive the cleaning member 220 of the brush assembly 200 to clean and switch the position, that is, only through the power of the transmission member 500, the cleaning operation and the position switching can be realized, so that the driving structure is relatively simple, the assembly difficulty is reduced, the assembly efficiency is improved, and the cost of the driving structure is reduced.

[0079] It can be understood that the damping assembly can be a one-way overrunning clutch, a two-way overrunning clutch, or other existing clutches.

[0080] The utility model also provides a brush device, including adjustable brush mechanism 10 of any one embodiment above, the brush device further includes rotary drive assembly, rotary drive assembly and one of mounting assembly 100 and pushing assembly 300 are drivenly connected, and rotary drive assembly is used to drive one of mounting assembly 100 and pushing assembly 300 to rotate, so that pushing assembly 300 relatively rotates with mounting assembly 100.

[0081] In some embodiments, the rotary drive assembly is in driving connection with the transmission member 500, so that the rotary drive assembly is in driving connection with one of the mounting assembly 100 and the pushing assembly 300 through the transmission member 500.

[0082] Of course, in other embodiments, the adjustable brush mechanism 10 can omit the transmission member 500, and the rotary drive assembly is directly in driving connection with one of the mounting assembly 100 and the pushing assembly 300.

[0083] The utility model also provides a sweeping robot, including the brush device of the above embodiment, and the sweeping robot further includes a robot body, and the brush device is installed on the robot body.

[0084] Compared with the prior art, the utility model has at least the following advantages:

[0085] 1, push assembly 300 with installation assembly 100 relative rotation, make push assembly 300 push connecting piece 210 on installation assembly 100 autorotation, because cleaning member 220 with connecting piece 210 between the included angle, thus cleaning member 220 in connecting piece 210 autorotation will swing, when cleaning member 220 swing, cleaning member 220 moves to the direction away from or close to the surface to be passed, i.e. cleaning member 220 lifts or falls, not only can make cleaning member 220 switch between cleaning position and stowage position, but also can adjust the compactness of cleaning member 220 on the surface to be passed.

[0086] 2, because push assembly 300 and installation assembly 100 relative rotation will not have the action of lifting, thus need not reserve lifting space for push assembly 300 and installation assembly 100, i.e. need not reserve lifting space for the structure that drives cleaning member 220 to lift, reduce the occupied space of floor cleaning robot in the thickness direction, be favorable to the flattening of floor cleaning robot.

[0087] 3, push assembly 300 push connecting piece 210 to realize the action of cleaning member 220, the transmission structure between push assembly 300 and connecting piece 210 does not involve complex gear engagement, shaft arrangement or transmission ratio calculation, thus compared with gear structure, the transmission structure between push assembly 300 and connecting piece 210 is relatively simple, reduces the processing difficulty, improves the processing efficiency.

[0088] 4, because the transmission structure between push assembly 300 and connecting piece 210 is relatively simple, and the installation angle has less influence on the transmission structure, thus the fault tolerance of push assembly 300 and connecting piece 210 in installation angle is higher, even if there is certain installation deviation, also will not have the remarkable influence to the overall performance, make the assembly requirement is more relaxed, reduce the assembly difficulty, improve the assembly efficiency.

[0089] The above-described embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it can not be understood as the limitation of the disclosed patent scope. It should be pointed out that for ordinary skilled person in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. An adjustable side brush mechanism, characterized in that: include: Mounting assembly (100); A side brush assembly (200) comprises a connecting member (210) and a cleaning member (220), wherein the connecting member (210) is rotatably connected to the mounting assembly (100), the connecting member (210) is provided with two matching portions (211), the two matching portions (211) are arranged opposite to each other in the circumferential direction of the connecting member (210), and an angle is formed between the two matching portions (211), the cleaning member (220) is connected to the connecting member (210), and an angle is formed between the cleaning member (220) and the connecting member (210); as well as The pushing component (300) is rotatable relative to the mounting component (100), and a portion of the pushing component (300) is located within the angle between the two matching portions (211). When the pushing component (300) is rotated relative to the mounting component (100), it pushes one of the matching portions (211), causing the connecting member (210) to rotate on the mounting component (100).

2. The adjustable side brush mechanism according to claim 1, characterized in that: The pushing component (300) is coaxially arranged with the mounting component (100), and the pushing component (300) can rotate relative to the mounting component (100).

3. The adjustable side brush mechanism according to claim 1, characterized in that: Each of the mating parts (211) is provided with a mating surface (2111), and the mating surfaces (2111) of the two mating parts (211) are arranged relative to each other in the circumferential direction of the connecting member (210), and there is an angle between the mating surfaces (2111) of the two mating parts (211), and a portion of the pushing component (300) is located within the angle between the mating surfaces (2111) of the two mating parts (211), and the pushing component (300) pushes the mating surface (2111) when rotating relative to the mounting component (100), so that the connecting member (210) rotates on the mounting component (100).

4. The adjustable side brush mechanism according to claim 1, characterized in that: A pushing member (310) is provided on one side of the pushing component (300) adjacent to the connecting component (210), and the pushing member (310) is provided with a pushing surface (311). The pushing surface (311) is located within the included angle between the two matching portions (211). When the pushing component (300) and the mounting component (100) rotate relative to each other, the pushing surface (311) pushes the matching portion (211) to cause the connecting component (210) to rotate.

5. The adjustable side brush mechanism according to claim 1, characterized in that: Each of the mating parts (211) is provided with a mating surface (2111), and an angle is formed between the mating surfaces (2111) of the two mating parts (211); a pushing member (310) is provided on a side of the pushing component (300) adjacent to the connecting member (210), and the pushing member (310) is provided with a pushing surface (311), and the pushing surface (311) is located within the angle between the mating surfaces (2111) of the two mating parts (211); when the pushing component (300) and the mounting component (100) rotate relative to each other, the pushing surface (311) pushes the mating surface (2111) to cause the connecting member (210) to rotate.

6. The adjustable side brush mechanism according to claim 1, characterized in that: The adjustable side brush mechanism further comprises a limiting structure, wherein the limiting structure is used to limit the rotation stroke of the connecting member (210), so that the cleaning member (220) can be switched between a cleaning position and a stowed position.

7. The adjustable side brush mechanism according to claim 6, characterized in that: When the cleaning member (220) is in the cleaning position and / or the retracted position, the angle between the force exerted by the matching portion (211) on the pushing component (300) and the axis of the pushing component (300) is ≤20 degrees.

8. The adjustable side brush mechanism according to claim 6, characterized in that: When the cleaning member (220) is in the cleaning position and / or the retracted position, the angle between the force exerted by the matching portion (211) on the pushing component (300) and the axis of the pushing component (300) is ≤10 degrees.

9. The adjustable side brush mechanism according to claim 1, characterized in that: The device further comprises a transmission member (500), wherein the transmission member (500) is in transmission connection with one of the mounting assembly (100) and the pushing assembly (300), and the transmission member (500) is used to drive one of the mounting assembly (100) and the pushing assembly (300), so that the mounting assembly (100) and the pushing assembly (300) rotate relative to each other; The adjustable side brush mechanism further comprises a damping assembly connected to the other of the mounting assembly (100) and the pushing assembly (300) for preventing the mounting assembly (100) and the pushing assembly (300) from rotating synchronously when the cleaning member (220) is adjusted.

10. A side brush device, characterized in that: The side brush device comprises the adjustable side brush mechanism according to any one of claims 1 to 9, wherein the side brush device further comprises a rotary drive assembly, wherein the rotary drive assembly is in transmission connection with one of the mounting assembly (100) and the pushing assembly (300).

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