Adjustable side brush mechanism and automatic cleaning device

Abstract

The utility model provides an adjustable side brush mechanism and an automatic cleaning device. The adjustable side brush mechanism comprises a mounting structure and a brush structure, the brush structure comprises a connecting piece and a cleaning arm, the connecting piece is rotationally connected to the mounting structure, the cleaning arm is connected to the connecting piece, and an included angle is formed between the cleaning arm and the connecting piece; the adjustable side brush mechanism further comprises a rotating structure, the rotating structure is connected with the connecting piece, and the rotating structure drives the connecting piece to rotate when rotating, so that the distance between the cleaning arm and the to-be-passed ground is changed, or the compactness of the cleaning arm on the to-be-passed ground is changed. Due to the fact that the rotating structure drives the connecting piece to rotate through rotation, it is not needed to reserve a moving space of the rotating structure in the thickness direction of the robot, the occupied space of the adjustable side brush mechanism in the thickness direction of the robot is small, and the structural compactness of the adjustable side brush mechanism in the thickness direction of the robot is high; and the trafficability of the robot is improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of cleaning robots, in particular to an adjustable side brush mechanism and an automatic cleaning device. BACKGROUND

[0002] The side brush mechanism is an important component of a cleaning robot, mainly responsible for cleaning garbage in areas such as corners that the robot cannot directly approach.

[0003] The side brush mechanism mainly includes a rotating component and a brush. The rotating component is used to drive the brush to rotate to realize the cleaning function of the brush. When the robot is working, the automatic planning route capability of the robot itself can make it identify obstacles using infrared detection sensors and other sensors when walking to prevent collision, and stop a few centimeters away from obstacles such as walls. At this time, the brush can penetrate into the corner and other difficult-to-clean areas to collect garbage to the center of the robot, and then further processed by other components.

[0004] The cleaning robot needs to work on various surfaces, including but not limited to carpets, wooden floors, tiles, etc. When the brush is excessively compacted on the ground to be passed through, it will exacerbate the wear of the brush and the ground to be passed through, and increase the cleaning resistance. During the cleaning process, the robot may encounter obstacles such as furniture and wires, which may jam or damage the brush. When the brush is not needed, if the brush is still in contact with the ground to be passed through, it will increase the noise and energy consumption of the travel. In addition, the ground may be contaminated by liquid and dust, and when the brush comes into contact with the above-mentioned contaminants, the brush will be attached with the above-mentioned contaminants, causing the brush to bring the above-mentioned contaminants to other positions on the ground during cleaning, resulting in a significant reduction in the cleaning effect of the brush.

[0005] To avoid the above problems, in related technology, the brush mechanism is usually provided with a lifting component, which is used to drive the brush to lift and lower. When lifting is needed, the lifting component drives the brush to lift or lower, for example, CN118303807A - a side brush lifting device.

[0006] In order to improve the passability of the cleaning robot, the thickness of the robot needs to be as small as possible, so the structural compactness of the robot in the thickness direction needs to be improved as much as possible. However, since the lifting component moves up and down when driving the brush, a certain lifting space needs to be reserved for the lifting component, which occupies a larger space in the thickness direction of the robot, that is, the structural compactness of the side brush mechanism in the thickness direction of the robot is poor, which is not conducive to improving the passability of the robot. UTILITY MODEL CONTENT

[0007] The purpose of the present disclosure is to overcome the shortcomings in the prior art and provide an adjustable side brush mechanism and an automatic cleaning device which occupies a smaller space in the thickness direction of the robot.

[0008] The purpose of the present disclosure is achieved by the following technical solutions:

[0009] The adjustable edge brush mechanism comprises a mounting structure and a brush structure, the brush structure comprising a connecting piece and a cleaning arm, the connecting piece being rotationally connected to the mounting structure, and the cleaning arm being connected to the connecting piece, and an included angle being formed between the cleaning arm and the connecting piece.

[0010] The adjustable edge brush mechanism further comprises a rotating structure, the rotating structure being connected to the connecting piece, and the rotating structure driving the connecting piece to rotate when the rotating structure rotates, so as to change the distance between the cleaning arm and the ground to be passed through or change the compaction degree of the cleaning arm on the ground to be passed through.

[0011] In some embodiments, the rotating structure comprises a transmission shaft and a transmission piece, the mounting structure and the transmission piece being sleeved on the transmission shaft, an included angle being formed between the axis of the transmission shaft and the axis of the connecting piece, one of the mounting structure and the transmission piece being a fixed component, the other of the mounting structure and the transmission piece being a rotating component, the transmission shaft being fixedly connected to the fixed component, and the transmission shaft being rotationally connected to the rotating component.

[0012] The transmission piece is further connected to the connecting piece, and the transmission piece rotates relative to the mounting structure when the transmission shaft rotates, so as to drive the connecting piece to rotate.

[0013] In some embodiments, the rotating structure drives the connecting piece to rotate when the rotating structure rotates, so as to switch the cleaning arm between a cleaning position and a stowed position.

[0014] The adjustable edge brush mechanism further comprises a limiting structure, the limiting structure being used to limit the rotating stroke of the connecting piece, so that the connecting piece stops rotating after the cleaning arm switches position.

[0015] In some embodiments, the limiting structure comprises a first limiting piece and a second limiting piece, the first limiting piece being fixedly connected to the mounting structure, and the second limiting piece being fixedly connected to the connecting piece, the first limiting piece abutting against the second limiting piece after the cleaning arm switches position.

[0016] In some embodiments, the rotating structure further comprises an overrunning clutch, the overrunning clutch being connected to the rotating component, so that the rotating component remains fixed when the position of the cleaning arm is switched.

[0017] In some embodiments, the connecting member is provided with first engaging teeth on a circumferential side, and the transmission member is provided with second engaging teeth on a side adjacent to the connecting member, the second engaging teeth being engaged with the first engaging teeth, and the axis of the transmission member forms an angle with the axis of the connecting member.

[0018] When the mounting structure rotates relative to the transmission member, the first engaging teeth roll along the extension direction of the second engaging teeth, so as to rotate the connecting member.

[0019] In some embodiments, the mounting structure comprises a mounting frame and an engaging member, the mounting frame is rotatably sleeved on the transmission shaft, and the connecting member is rotatably connected to the mounting frame; the engaging member is sleeved on the transmission shaft, the first engaging teeth are clamped between the engaging member and the second engaging teeth, and the engaging member is provided with third engaging teeth on a side adjacent to the first engaging teeth, the third engaging teeth being engaged with the first engaging teeth.

[0020] One of the engaging member and the transmission member is the fixed component, and the other one is the rotating component; when the transmission shaft rotates, the engaging member rotates relative to the transmission member, so as to rotate the connecting member.

[0021] In some embodiments, the adjustable edge brush mechanism further comprises a swinging member, the swinging member is rotatably connected to the mounting structure, and the connecting member is fixedly connected to the swinging member, so that the connecting member is rotatably connected to the mounting structure through the swinging member; the transmission member is connected to the swinging member, so that the transmission member is connected to the connecting member through the swinging member.

[0022] When the mounting structure rotates relative to the transmission member, the swinging member swings to rotate the connecting member.

[0023] In some embodiments, the transmission member is formed with a pushing area, and part of the swinging member is located in the pushing area; when the mounting structure rotates relative to the transmission member, the inner wall of the pushing area pushes the swinging member to swing.

[0024] An automatic cleaning device comprising the adjustable edge brush mechanism of any one of the above embodiments.

[0025] Compared with the prior art, the present disclosure has at least the following advantages:

[0026] Because of the angle between the cleaning arm and the connecting member, the cleaning arm swings as the connecting member rotates. Therefore, when the rotating structure drives the connecting member to rotate, the cleaning arm swings towards or away from the ground to be traversed, changing the distance between the cleaning arm and the ground. This allows the cleaning arm to switch between a cleaning position and a retracted position, or to change the compaction of the cleaning arm on the ground to be traversed, adjusting the compaction to a predetermined value. Since the rotating structure drives the connecting member to rotate, there is no need to reserve space for the rotating structure in the robot's thickness direction. This results in a smaller space occupied by the adjustable side brush mechanism in the robot's thickness direction, leading to a higher structural compactness and improved robot maneuverability. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of an automatic cleaning device according to one embodiment;

[0029] Figure 2 for Figure 1 A cross-sectional view of the automatic cleaning device shown along line AA;

[0030] Figure 3 for Figure 2 An enlarged schematic diagram of the automatic cleaning device at point B;

[0031] Figure 4 for Figure 1 A partial structural diagram of the automatic cleaning device is shown below;

[0032] Figure 5 for Figure 1 Another partial structural schematic diagram of the automatic cleaning device shown;

[0033] Figure 6 for Figure 1 Another partial sectional view of the automatic cleaning device shown;

[0034] Figure 7 for Figure 1 Another partial sectional view of the automatic cleaning device shown;

[0035] Figure 8 for Figure 1 Another partial sectional view of the automatic cleaning device shown;

[0036] Figure 9 Partial sectional view of automatic cleaning device of another embodiment;

[0037] Figure 10 Partial structural schematic view of automatic cleaning device of still another embodiment;

[0038] Figure 11 Partial sectional view of automatic cleaning device of another embodiment; Figure 10 Enlarged schematic view of automatic cleaning device shown at C.

[0039] Reference numerals: 10a, adjustable brush mechanism; 100, mounting structure; 110, mounting frame; 120, engaging member; 121, third engaging tooth; 200, brush structure; 210, connecting member; 211, first engaging tooth; 220, cleaning arm; 300, rotating structure; 310, transmission shaft; 320, transmission member; 321, second engaging tooth; 322, pushing area; 320a, transmission main body; 320b, connecting shaft sleeve; 400, fixed part; 500, rotating part; 600, limiting structure; 610, first limiting member; 620, second limiting member; 621, movable area; 700, overrunning clutch; 710, locking member; 720, blocking member; 730, rolling member; 701, locking track; 701a, locking groove; 702, one-way locking groove; 800, swinging member; 810, roller; 10b, driving motor; 10c, transmission structure; 10d, housing. DETAILED DESCRIPTION

[0040] For the purpose of promoting an understanding of the disclosure, the disclosure will now be described in greater detail with reference to the figures. The disclosure is illustrated by a preferred embodiment in the present disclosure. However, the disclosure can be realized in many different forms and should not be construed as limited to the embodiments set forth herein.

[0041] 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. As used herein, the terms "vertical", "horizontal", "left", "right" and similar expressions are used for explanation purposes only and are not intended to be limiting.

[0042] 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 disclosure belongs. The terminology used in the description of the disclosure herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0043] In order to better understand the technical solutions and beneficial effects of the present disclosure, the present disclosure will be further described in detail below in combination with specific embodiments:

[0044] As shown in Figure 1 and Figure 2 , an automatic cleaning device of an embodiment includes an adjustable brush mechanism 10a. Further, the automatic cleaning device also includes a driving motor 10b and a transmission structure 10c, the transmission structure 10c is in transmission connection with the driving motor 10b, and the transmission structure 10c is in transmission connection with a transmission shaft 310. In the present embodiment, the automatic cleaning device is applied to a cleaning robot, the body is the main body of the cleaning robot, and the automatic cleaning device is installed on the part of the body facing the ground to be passed through, and the adjustable brush mechanism 10a at least partially protrudes from the body. It can be understood that the cleaning robot can be a sweeping robot, a mopping robot, a sweeping and mopping integrated robot, or other existing devices for cleaning surfaces. The cleaning robot can be used to clean the ground, the wall, the table, or other existing surfaces that need to be cleaned. The ground to be passed through is the surface that the adjustable brush mechanism 10a is about to pass through or is passing through, and the adjustable brush mechanism 10a is arranged opposite to the ground to be passed through when the adjustable brush mechanism 10a passes through the ground to be passed through, and the ground to be passed through includes but is not limited to a cement ground, a carpet surface, a wooden floor surface, a ceramic tile surface, etc. When the driving motor 10b rotates, the transmission structure 10c rotates, and the transmission shaft 310 rotates.

[0045] As shown in Figure 2 , in some embodiments, the adjustable brush mechanism 10a includes a mounting structure 100 and a brush structure 200, wherein the brush structure 200 includes a connecting piece 210 and a cleaning arm 220, the connecting piece 210 is rotationally connected to the mounting structure 100, so that the connecting piece 210 can rotate on the mounting structure 100. The cleaning arm 220 is connected to the connecting piece 210, and there is an included angle between the cleaning arm 220 and the connecting piece 210, so that the cleaning arm 220 swings when the connecting piece 210 rotates. It can be understood that the cleaning arm 220 can be linear, arc-shaped, or other shapes, as long as the cleaning arm 220 has a part that is not parallel to the connecting piece 210.

[0046] As shown in Figure 3 and Figure 4 , further, the adjustable brush mechanism 10a also includes a rotating structure 300, the rotating structure 300 is connected to the connecting piece 210, and the rotating structure 300 drives the connecting piece 210 to rotate when it rotates, so that the distance between the cleaning arm 220 and the ground to be passed through changes, and then the cleaning arm 220 contacts or separates from the ground to be passed through, and then the cleaning arm 220 is in a cleaning position or a retracted position, or the compaction degree of the cleaning arm 220 on the ground to be passed through changes, so as to adjust the compaction degree of the cleaning arm 220 on the ground to be passed through to a predetermined value.

[0047] Please refer to Figure 2 to Figure 4 In the embodiment, when it is needed to reduce the compactness of the cleaning arm 220 on the ground to be passed through, the rotating structure 300 drives the connecting member 210 to rotate in a first direction, so that the connecting member 210 rotates and drives the cleaning arm 220 to swing away from the ground to be passed through, so as to reduce the compactness of the cleaning arm 220 on the ground to be passed through. When it is needed to increase the compactness of the cleaning arm 220 on the ground to be passed through, the rotating structure 300 drives the connecting member 210 to rotate in a second direction opposite to the first direction, so that the connecting member 210 rotates and drives the cleaning arm 220 to swing close to the ground to be passed through, so as to increase the compactness of the cleaning arm 220 on the ground to be passed through.

[0048] Similarly, when the cleaning arm 220 is in contact with the ground to be passed through, that is, the cleaning arm 220 is in the cleaning position, if it is needed to separate the cleaning arm 220 from the ground to be passed through, that is, switch the cleaning arm 220 to the stowed position, the rotating structure 300 drives the connecting member 210 to rotate in the first direction, so that the connecting member 210 rotates and drives the cleaning arm 220 to swing away from the ground to be passed through, so as to separate the cleaning arm 220 from the ground to be passed through, that is, make the cleaning arm 220 in the stowed position. When the cleaning arm 220 is separated from the ground to be passed through, that is, the cleaning arm 220 is in the stowed position, if it is needed to make the cleaning arm 220 contact with the ground to be passed through, that is, switch the cleaning arm 220 to the cleaning position, the rotating structure 300 drives the connecting member 210 to rotate in the second direction, so that the connecting member 210 rotates and drives the cleaning arm 220 to swing close to the ground to be passed through, so as to make the cleaning arm 220 contact with the ground to be passed through, that is, make the cleaning arm 220 in the cleaning position.

[0049] It can be understood that, due to the included angle between the cleaning arm 220 and the connecting member 210, when the connecting member 210 continuously rotates in the first direction, the cleaning arm 220 has a stage of swinging towards the ground to be passed through and a stage of swinging away from the ground to be passed through. When the connecting member 210 continuously rotates in the second direction, the cleaning arm 220 also has a stage of swinging towards the ground to be passed through and a stage of swinging away from the ground to be passed through. Therefore, in other embodiments, when the connecting member 210 continuously rotates in one direction, the compactness of the cleaning arm 220 on the ground to be passed through can be increased and reduced, and the cleaning arm 220 can be switched between the cleaning position and the stowed position.

[0050] The automatic cleaning device and the adjustable side brush mechanism 10a have an included angle between the cleaning arm 220 and the connecting member 210, so that the cleaning arm 220 swings when the connecting member 210 rotates, and thus the cleaning arm 220 swings towards or away from the ground to be passed when the rotating structure 300 drives the connecting member 210 to rotate, so that the distance between the cleaning arm 220 and the ground to be passed changes, and thus the cleaning arm 220 can switch between the cleaning position and the stowed position, or the compaction degree of the cleaning arm 220 on the ground to be passed changes to adjust the compaction degree of the cleaning arm 220 on the ground to be passed to a predetermined value. Since the rotating structure 300 drives the connecting member 210 to rotate by rotating, the activity space of the rotating structure 300 in the thickness direction of the robot does not need to be reserved, so that the adjustable side brush mechanism 10a occupies a smaller space in the thickness direction of the robot, that is, the structure of the adjustable side brush mechanism 10a in the thickness direction of the robot is more compact, which is beneficial to improve the passability of the robot.

[0051] As shown in Figure 3 In some embodiments, the axis of the rotating structure 300 and the axis of the connecting member 210 have an included angle, so that the transmission structure 10c of the adjustable side brush mechanism 10a is more compact. It can be understood that the axis is the rotation axis when rotating.

[0052] As shown in Figure 3 Preferably, the axis of the rotating structure 300 is perpendicular to the axis of the connecting member 210, that is, the included angle between the axis of the rotating structure 300 and the axis of the connecting member 210 is 90°.

[0053] Of course, the included angle between the axis of the rotating structure 300 and the axis of the connecting member 210 is not limited to 90°, for example, in other embodiments, the included angle between the axis of the rotating structure 300 and the axis of the connecting member 210 is 80°, 85°, 95°, 100° or other angles, as long as the axis of the rotating structure 300 and the axis of the connecting member 210 are not parallel.

[0054] As shown in Figure 3 and Figure 4As shown in some embodiments, the rotating structure 300 includes a transmission shaft 310 and a transmission member 320, the transmission shaft 310 is used to be in transmission connection with the driving motor 10b, so that the driving motor 10b is used to drive the transmission shaft 310 to rotate. The mounting structure 100 and the transmission member 320 are sleeved on the transmission shaft 310, the axis of the transmission shaft 310 and the axis of the connecting member 210 form an angle, one of the mounting structure 100 and the transmission member 320 is the fixed component 400, the other of the mounting structure 100 and the transmission member 320 is the rotating component 500, the transmission shaft 310 is fixedly connected with the fixed component 400, and the transmission shaft 310 is rotatably connected with the rotating component 500, so that the transmission shaft 310 can drive the mounting structure 100 and the transmission member 320 to rotate relatively when the transmission shaft 310 rotates. The transmission member 320 is further connected with the connecting member 210, and the transmission member 320 rotates relatively with the mounting structure 100 to drive the connecting member 210 to rotate when the transmission shaft 310 rotates, so that the connecting member 210 drives the cleaning arm 220 to swing.

[0055] As shown in some embodiments, Figure 3 Preferably, the axis of the transmission shaft 310 is perpendicular to the axis of the connecting member 210, that is, the angle between the axis of the transmission shaft 310 and the axis of the connecting member 210 is 90°, so that the transmission structure 10c of the adjustable brush mechanism 10a is relatively compact.

[0056] Of course, the angle between the axis of the transmission shaft 310 and the axis of the connecting member 210 is not limited to 90°, for example, in other embodiments, the angle between the axis of the transmission shaft 310 and the axis of the connecting member 210 is 80°, 85°, 95°, 100° or other angles, as long as the axis of the transmission shaft 310 is not parallel to the axis of the connecting member 210.

[0057] As shown in some embodiments, Figure 4 and Figure 5 In some embodiments, the rotating structure 300 drives the connecting member 210 to rotate when it rotates, so that the cleaning arm 220 switches between the cleaning position and the stowed position. The adjustable brush mechanism 10a further includes a limiting structure 600, which is used to limit the rotating stroke of the connecting member 210, so that the connecting member 210 stops rotating after the cleaning arm 220 switches position. In this embodiment, since the limiting structure 600 limits the rotating stroke of the connecting member 210, not only can the cleaning arm 220 remain in the cleaning position for cleaning, but also can the cleaning arm 220 remain in the stowed position.

[0058] It is understood that when the cleaning arm 220 is in the cleaning position, it is used to contact the ground to be traversed, allowing the cleaning arm 220 to clean the ground. When the cleaning arm 220 is in the retracted position, it is spaced apart from the ground to prevent direct contact. In the cleaning position, the cleaning arm 220 is at least partially in contact with the ground; this could be the end of the cleaning arm 220 away from the connector 210, the middle portion of the cleaning arm 220, or other parts of the cleaning arm. In the retracted position, all parts of the cleaning arm 220 are separated from the ground. The end of the cleaning arm 220 away from the connector 210 can face the ground or the machine body; alternatively, the cleaning arm 220 can be parallel to the ground.

[0059] Similarly, it can be understood that in addition to directly limiting the rotational stroke of the connector 210, the limiting structure 600 can also limit the rotational stroke of the connector 210 by limiting the relative rotational stroke of the transmission component 320 and the mounting structure 100. This is because the rotation of the connector 210 is generated by the relative rotation of the transmission component 320 and the mounting structure 100. When the transmission component 320 and the mounting structure 100 do not rotate relative to each other, the connector 210 cannot rotate.

[0060] For example, in some embodiments, the adjustable side brush mechanism 10a further includes a limiting structure 600 for limiting the travel of the transmission member 320 relative to the mounting structure 100, so that the connector 210 stops rotating after the cleaning arm 220 changes position.

[0061] like Figure 3 As shown, in some embodiments, the drive shaft 310 is fixedly sleeved with the mounting structure 100, and the drive shaft 310 is rotatably sleeved with the transmission component 320. Further, the transmission component 320 includes a transmission body 320a and a connecting sleeve 320b. The transmission body 320a is rotatably sleeved with the drive shaft 310, and the connecting sleeve 320b is fixedly sleeved on the transmission body 320a. An overrunning clutch 700 is connected to the connecting sleeve 320b, so that both the connecting sleeve 320b and the transmission body 320a remain fixed when switching the position of the cleaning arm 220.

[0062] It is understood that the method of fixing the transmission body 320a and the connecting bushing 320b is not limited. For example, the connecting bushing 320b can be fixedly sleeved with the transmission body 320a by a flat shaft, the connecting bushing 320b can also be fixedly connected with the transmission body 320a by fasteners, or the connecting bushing 320b can be fixedly connected with the transmission body 320a by integral molding.

[0063] In other embodiments, the drive shaft 310 is rotatably sleeved with the mounting structure 100, and the drive shaft 310 is fixedly sleeved with the transmission component 320.

[0064] like Figure 5 As shown, in some embodiments, the limiting structure 600 includes a first limiting member 610 and a second limiting member 620. The first limiting member 610 is fixedly connected to the mounting structure 100, and the second limiting member 620 is fixedly connected to the connector 210. An active area 621 is formed at the periphery of the second limiting member 620. The first limiting member 610 is located within the active area 621. After the cleaning arm 220 switches positions, the first limiting member 610 abuts against the inner wall of the active area 621, so that the first limiting member 610 abuts against the second limiting member 620.

[0065] like Figure 4 and Figure 5 As shown, in this embodiment, when the cleaning arm 220 is in the cleaning position, if the cleaning arm 220 is to be switched to the retracted position, the drive shaft 310 rotates in the third direction, causing the mounting structure 100 and the drive member 320 to rotate relative to each other, and causing the connecting member 210 to rotate in the first direction, thereby causing the cleaning arm 220 to swing away from the ground to be passed, while simultaneously driving the second limiting member 620 to rotate synchronously; when the first limiting member 610 abuts against the inner wall of the active area 621, the cleaning arm 220 stops and is in the retracted position, and the connecting member 210 can no longer rotate in the first direction.

[0066] like Figure 4 and Figure 5 As shown, when the cleaning arm 220 is in the retracted position, to switch it to the sweeping position, the drive shaft 310 rotates in a fourth direction opposite to the third direction, causing the mounting structure 100 and the drive component 320 to rotate relative to each other, and causing the connecting component 210 to rotate in a second direction opposite to the first direction. This causes the cleaning arm 220 to swing towards the ground to be traversed, while simultaneously driving the second limiting component 620 to rotate synchronously. When the first limiting component 610 abuts against the inner wall of the active area 621, the cleaning arm 220 stops and is in the sweeping position, and the connecting component 210 can no longer rotate in the second direction. Thus, through the cooperation of the first limiting component 610 and the second limiting component 620, the cleaning arm 220 can stop in both the sweeping and retracted positions, thereby enabling it to switch between these positions.

[0067] Of course, the activity area 612 can be set in the second limiting piece 620 or the first limiting piece 610.

[0068] like Figure 6As shown, in some embodiments, the rotating structure 300 further comprises an overrunning clutch 700 fixed on the housing 10d, and the overrunning clutch 700 is connected with the rotating connecting component 500, so that the rotating connecting component 500 remains fixed when the position of the cleaning arm 220 is switched, i.e. the rotating connecting component 500 remains fixed when the connecting component 210 rotates.

[0069] As shown, in some embodiments, the rotating structure 300 further comprises an overrunning clutch 700 fixed on the housing 10d, and the overrunning clutch 700 is connected with the rotating connecting component 500, so that the rotating connecting component 500 remains fixed when the position of the cleaning arm 220 is switched, i.e. the rotating connecting component 500 remains fixed when the connecting component 210 rotates. Figure 6 As shown, in some embodiments, the rotating structure 300 further comprises an overrunning clutch 700 fixed on the housing 10d, and the overrunning clutch 700 is connected with the rotating connecting component 500, so that the rotating connecting component 500 remains fixed when the position of the cleaning arm 220 is switched, i.e. the rotating connecting component 500 remains fixed when the connecting component 210 rotates.

[0070] As shown, in some embodiments, the rotating structure 300 further comprises an overrunning clutch 700 fixed on the housing 10d, and the overrunning clutch 700 is connected with the rotating connecting component 500, so that the rotating connecting component 500 remains fixed when the position of the cleaning arm 220 is switched, i.e. the rotating connecting component 500 remains fixed when the connecting component 210 rotates. Figure 6 As shown, in some embodiments, the rotating structure 300 further comprises an overrunning clutch 700 fixed on the housing 10d, and the overrunning clutch 700 is connected with the rotating connecting component 500, so that the rotating connecting component 500 remains fixed when the position of the cleaning arm 220 is switched, i.e. the rotating connecting component 500 remains fixed when the connecting component 210 rotates.

[0071] As shown, in some embodiments, the rotating structure 300 further comprises an overrunning clutch 700 fixed on the housing 10d, and the overrunning clutch 700 is connected with the rotating connecting component 500, so that the rotating connecting component 500 remains fixed when the position of the cleaning arm 220 is switched, i.e. the rotating connecting component 500 remains fixed when the connecting component 210 rotates.

[0072] As shown, in some embodiments, the rotating structure 300 further comprises an overrunning clutch 700 fixed on the housing 10d, and the overrunning clutch 700 is connected with the rotating connecting component 500, so that the rotating connecting component 500 remains fixed when the position of the cleaning arm 220 is switched, i.e. the rotating connecting component 500 remains fixed when the connecting component 210 rotates. Figure 7As shown, in some embodiments, the overrunning clutch 700 is a bidirectional overrunning clutch, which includes a locking member 710, a blocking member 720, and a rolling member 730. The locking member 710 and the connecting member 500 together form a locking track 701. The blocking member 720 protrudes from the inner wall of the locking track 701 to divide the locking track 701 into two locking grooves 701a. The distance between the blocking member 720 and the connecting member 500 is less than the outer diameter of the rolling member 730. The rolling member 730 is located within one locking groove 701a. When the rotating component 500 rotates relative to the locking component 710, the rotating component 500 rubs against the rolling component 730, causing the rolling component 730 to be subjected to the frictional force of the rotating component 500. The rolling component 730 rotates when subjected to the frictional force away from the blocking component 730. The rolling component 730 is locked on the blocking component 720 when subjected to the frictional force towards the blocking component 720. When the frictional force on the rolling component 730 is greater than the locking force, the rolling component 730 passes through the blocking component 720, causing the rolling component 720 to move from one locking groove 701a to another locking groove 701a.

[0073] It is understandable that the rolling element 730 locks onto the blocking element 720 when subjected to frictional force toward the blocking element 720 because the distance between the blocking element 720 and the connecting part 500 is less than the outer diameter of the rolling element 730.

[0074] like Figure 6 and Figure 7 As shown, in this embodiment, when the cleaning arm 220 switches between the cleaning position and the retracted position, the drive shaft 310 rotates. Since the drive shaft 310, the fixed component 400, the connector 210, and the rotating component 500 are connected in sequence, the drive shaft 310 drives the rotating component 500 to rotate. After the rotating component 500 rotates, the rotating component 500 rubs and pushes the rolling component 730 toward the blocking component 720, so that the rolling component 730 is locked on the blocking component 720. This causes the overrunning clutch 700 to prevent the rotating component 500 from rotating with the drive shaft 310, thus fixing the rotating component 500. Since the fixed component 400 is fixedly connected to the drive shaft 310, the rotating component 500 rotates relative to the fixed component 400, thereby allowing the connector 210 to rotate.

[0075] When the cleaning arm 220 finishes the position switching, the limiting structure 600 prevents the connecting member 210 from continuing to rotate in the same direction, so that the fixed connecting member 400 is fixedly connected with the rotating connecting member 500 through the connecting member 210. As the transmission shaft 310 continues to rotate in the same direction, the frictional thrust of the rotating connecting member 500 acting on the rolling member 730 will increase. When the frictional thrust is greater than the locking force, the rolling member 730 will be squeezed and pass through the blocking member 720, so that the rolling member 730 moves from one locking groove 701a to another locking groove 701a. After the rolling member 730 passes through the blocking member 720, the frictional thrust acting on the rolling member 730 is away from the blocking member 720, so that the rolling member 730 can rotate;

[0076] Since the rolling member 720 can rotate, the overrunning clutch 700 cannot limit the rotating connecting member 500 to continue to rotate in the same direction, avoiding the situation that the transmission shaft 310 is blocked after the position switching, prolonging the service life of the adjustable brush mechanism 10a, and also enabling the cleaning arm 220 to rotate with the transmission shaft 310 after the position switching, so that the transmission shaft 310 can drive the cleaning arm 220 to clean after the position of the cleaning arm 220 is switched, that is, the transmission shaft 310 can realize the position switching of the cleaning arm 220 and the cleaning action of the cleaning arm 220, and only one driving motor 10b is needed to rotate the transmission shaft 310, so that one driving motor 10b can drive the cleaning arm 220 to switch the position and clean, improving the structural compactness of the cleaning robot.

[0077] As Figure 6 and Figure 7As shown, specifically, when the cleaning arm 220 is in the sweeping position, if the cleaning arm 220 is to be switched to the stowed position, the transmission shaft 310 rotates in the third direction, the transmission shaft 310 drives the rotating connecting component 500 to rotate, the rotating connecting component 500 rubs and pushes the rolling component 730 and the blocking component 720 to abut, so that the rolling component 730 is locked in the blocking component 720, and then the rotating connecting component 500 is fixed; after the rotating connecting component 500 is fixed, the rotating connecting component 500 rotates relative to the fixed connecting component 400, the connecting component 210 rotates in the first direction, and then the cleaning arm 220 swings away from the ground to be passed, and the limiting structure 600 is driven to move; when the cleaning arm 220 enters the stowed position, the limiting structure 600 prevents the connecting component 210 from continuing to rotate in the first direction, so that the cleaning arm 220 stops in the stowed position; as the transmission shaft 310 continues to rotate in the first direction, the transmission shaft 310, the fixed connecting component 400, the connecting component 210 and the rotating connecting component 500 are sequentially connected in transmission, so that the frictional thrust of the rotating connecting component 500 acting on the rolling component 730 increases; after the frictional thrust is greater than the locking force, the rolling component 730 extrudes and passes through the blocking component 720, so that the rolling component 730 moves from one locking groove 701a to another locking groove 701a; after the rolling component 730 moves to another locking groove 701a, the frictional force acting on the rolling component 720 is away from the blocking component 720, so that the rolling component 720 can rotate;

[0078] Since the rolling component 720 can rotate, the overrunning clutch 700 cannot prevent the rotating connecting component 500 from rotating with the transmission shaft 310, so that the transmission shaft 310, the fixed connecting component 400, the connecting component 210 and the rotating connecting component 500 rotate synchronously, that is, the transmission shaft 310 is prevented from being stuck after the cleaning arm 220 is switched to the stowed position, thereby avoiding the situation of locked-rotor, prolonging the service life of the adjustable brush mechanism 10a.

[0079] As Figure 6 and Figure 7As shown, when the cleaning arm 220 is in the stowed position, if the cleaning arm 220 is to be switched to the cleaning position, the transmission shaft 310 rotates in the fourth direction, the transmission shaft 310 drives the rotating connecting component 500 to rotate, the rotating connecting component 500 rubs and pushes the rolling member 730 to abut against the blocking member 720, so that the rolling member 720 is locked in the blocking member 720, so that the rotating connecting component 500 is fixed; after the rotating connecting component 500 is fixed, the rotating connecting component 500 rotates relative to the fixed connecting component 400, the connecting member 210 rotates in the second direction, and then the cleaning arm 220 swings in the direction close to the ground to be passed, and the limiting structure 600 is driven to move; when the cleaning arm 220 enters the cleaning position, the limiting structure 600 prevents the connecting member 210 from continuing to rotate in the second direction, so that the cleaning arm 220 stops in the cleaning position; as the transmission shaft 310 continues to rotate in the second direction, the transmission shaft 310, the fixed connecting component 400, the connecting member 210 and the rotating connecting component 500 are sequentially connected in transmission, so that the frictional thrust of the rotating connecting component 500 acting on the rolling member 730 increases; after the frictional thrust is greater than the locking force, the rolling member 730 extrudes and passes through the blocking member 720, so that the rolling member 730 moves from one locking groove 701a to another locking groove 701a; after the rolling member 730 moves to another locking groove 701a, the frictional force acting on the rolling member 730 is away from the blocking member 720, so that the rolling member 730 can rotate;

[0080] Since the rolling member 730 can rotate, the overrunning clutch 700 cannot prevent the rotating connecting component 500 from rotating with the transmission shaft 310, so that the transmission shaft 310, the fixed connecting component 400, the connecting member 210 and the rotating connecting component 500 rotate synchronously, that is, the transmission shaft 310 is prevented from being stuck after the cleaning arm 220 is switched to the stowed position, thereby avoiding the situation of locked-rotor, prolonging the service life of the adjustable brush mechanism 10a, and enabling the cleaning arm 220 to rotate with the transmission shaft 310 after entering the cleaning position, so that the transmission shaft 310 can drive the cleaning arm 220 to clean after the cleaning arm 220 is switched to the cleaning position, that is, the transmission shaft 310 can realize the position switching of the cleaning arm 220 and the cleaning action of the cleaning arm 220, and only one driving motor 10b is needed to rotate the transmission shaft 310, so that one driving motor 10b can drive the cleaning arm 220 to switch positions and clean, thereby improving the structural compactness of the cleaning robot.

[0081] In addition, the structure of the bidirectional overrunning clutch can refer to CN117685280A-Force Control Directional Flip Motion Locking Mechanism, Bidirectional Force Limiting Device and Cleaning Equipment.

[0082] It can be understood that the bidirectional overrunning clutch is not limited to the above structure, and the bidirectional overrunning clutch can also be a ratchet-pawl bidirectional overrunning clutch or other existing bidirectional overrunning clutches.

[0083] AsFigure 8 As shown in the drawings, in some embodiments, the overrunning clutch 700 is a one-way overrunning clutch, the overrunning clutch 700 comprises a locking member 710 and a rolling member 730. The locking member 710 cooperates with the rotating connecting member 500 to form a one-way locking groove 702, the one-way locking groove 702 has a release end and a locking end. The rolling member 730 rolls in the one-way locking groove 702, the rolling member 730 is movable at the release end, the resistance of the rolling member 730 gradually increases when the rolling member 730 is moved from the release end to the locking end, that is, the activity space of the rolling member 730 from the release end to the locking end gradually decreases, so that the rolling member 730 is locked at the locking end.

[0084] As shown in the drawings, Figure 8 In this embodiment, the locking member 710 is fixed in the housing 10d, and the locking member 710 remains fixed when the position of the cleaning arm 220 is switched. When the rotating connecting member 500 rotates relative to the locking member 710, the rotating connecting member 500 will generate friction with the rolling member 730, and the friction force of the rotating connecting member 500 acting on the rolling member 730 has a tendency to push the rolling member 730. After the rotating connecting member 500 pushes the rolling member 730 to the locking end by friction, the rolling member 730 cannot move, so that the rolling member 730 has a large resistance to the rotating connecting member 500, and thus the rolling member 730 can block the rotating connecting member 500 from rotating.

[0085] As shown in the drawings, Figure 6 and Figure 8 When the cleaning arm 220 is in the cleaning position, if the cleaning arm 220 is switched to the stowed position, the transmission shaft 310 rotates in the third direction, the transmission shaft 310 drives the rotating connecting member 500 to rotate, the rotating connecting member 500 frictionally pushes the rolling member 730 from the release end to the locking end, so that the rolling member 730 is locked at the locking end, and thus the rotating connecting member 500 is fixed, and the rotating connecting member 500 rotates relative to the fixed connecting member 400. After the rotating connecting member 500 rotates relative to the fixed connecting member 400, the connecting member 210 rotates in the first direction, so that the cleaning arm 220 swings away from the ground to be cleaned, and the limiting structure 600 is driven to move. When the cleaning arm 220 enters the stowed position, the limiting structure 600 prevents the connecting member 210 from continuing to rotate in the first direction, so that the cleaning arm 220 stops at the stowed position. As the transmission shaft 310 continues to rotate in the first direction, the transmission shaft 310, the fixed connecting member 400, the connecting member 210 and the rotating connecting member 500 are sequentially connected in transmission, so that the frictional thrust of the rotating connecting member 500 acting on the rolling member 730 increases. When the frictional thrust increases to a predetermined value, the power of the transmission shaft 310 is cut off to avoid the situation of locked rotor, thereby prolonging the service life of the adjustable brush mechanism 10a.

[0086] As shown in the drawings, Figure 6 and Figure 8As shown, when the cleaning arm 220 is in the stowed position, if the cleaning arm 220 is switched to the sweeping position, the transmission shaft 310 rotates in the fourth direction, at this time, the locking force on the locking end of the rolling member 730 is greater than the friction force of the rolling member 730 acted by the rotation connecting component 500, so that the rolling member 730 is still locked at the locking end, and the rolling member 730 temporarily fixes the rotation connecting component 500, and the rotation connecting component 500 rotates relative to the fixed connecting component 400; after the rotation connecting component 500 rotates relative to the fixed connecting component 400, the connecting member 210 rotates in the second direction, so that the cleaning arm 220 swings to the direction close to the ground to be passed, and drives the limiting structure 600 to move; when the cleaning arm 220 enters the sweeping position, the limiting structure 600 prevents the connecting member 210 from continuing to rotate in the second direction, so that the cleaning arm 220 stops at the sweeping position.

[0087] With the continuous rotation of the transmission shaft 310 in the second direction, the transmission shaft 310, the fixed connecting component 400, the connecting member 210 and the rotation connecting component 500 are sequentially connected in transmission, so that the frictional thrust of the rotation connecting component 500 acting on the rolling member 730 increases; when the frictional thrust increases to a predetermined value, the friction force acting on the rolling member 730 will be greater than the locking force, so that the rolling member 730 moves from the locking end to the unlocking end, so that the transmission shaft 310, the fixed connecting component 400, the connecting member 210 and the rotation connecting component 500 rotate synchronously, not only avoiding the transmission shaft 310 being stuck after switching the cleaning arm 220 to the sweeping position, avoiding the situation of locked-rotor, prolonging the service life of the adjustable brush mechanism 10a, but also enabling the cleaning arm 220 to sweep under the driving of the transmission shaft 310, i.e. the transmission shaft 310 can drive the cleaning arm 220 to sweep after switching the cleaning arm 220 to the sweeping position. In this way, the transmission shaft 310 can realize the position switching of the cleaning arm 220 and the sweeping action of the cleaning arm 220, and only one driving motor 10b is needed to rotate the transmission shaft 310, so that one driving motor 10b can drive the cleaning arm 220 to switch position and sweep, improving the structural compactness of the cleaning robot.

[0088] It can be understood that the locking member 710 can be arranged on the end face, side face, inner surface or other surface of the shaft sleeve of the rotation connecting component 500. Moreover, the one-way overrunning clutch is not limited to the above structure, and can be a wedge block type one-way clutch or other existing one-way overrunning clutch.

[0089] As Figure 6As shown in some embodiments, the circumferential side of the connecting member 210 is provided with the first engaging teeth 211, the axis of the transmission member 320 and the axis of the connecting member 210 form an angle, the side of the transmission member 320 adjacent to the connecting member 210 is provided with the second engaging teeth 321, the second engaging teeth 321 engage with the first engaging teeth 211. When the mounting structure 100 rotates relative to the transmission member 320, the first engaging teeth 211 roll along the extension direction of the second engaging teeth 321, so that the connecting member 210 rotates.

[0090] It can be understood that the transmission member 320 can be a face gear, a bevel gear or other existing transmission gears, and the first engaging teeth 211 are gear structures matched with the transmission member 320, for example, when the transmission member 320 is a face gear, the first engaging teeth 211 are ordinary straight gears; for another example, when the transmission member 320 is a bevel gear, the first engaging teeth 211 are also bevel gears.

[0091] As shown in some embodiments, Figure 6 Preferably, the axis of the transmission member 320 is perpendicular to the axis of the connecting member 210, so that the transmission member 320 and the connecting member 210 are arranged more compactly, which is beneficial to improve the compactness of the adjustable edge brush mechanism 10a.

[0092] Of course, the angle between the axis of the transmission member 320 and the axis of the connecting member 210 is not limited to 90°, for example, in other embodiments, the angle between the axis of the transmission member 320 and the axis of the connecting member 210 can be 85°, 95°, 100° or other angles, as long as the angle between the axis of the transmission member 320 and the axis of the connecting member 210 is not parallel.

[0093] As shown in some embodiments, Figure 9 In other embodiments, the mounting structure 100 includes the mounting frame 110 and the engaging member 120, the mounting frame 110 is rotationally sleeved on the transmission shaft 310, and the connecting member 210 is rotationally connected to the mounting frame 110. The engaging member 120 is sleeved on the transmission shaft 310, the first engaging teeth 211 are clamped between the engaging member 120 and the second engaging teeth 321, the side of the engaging member 120 adjacent to the first engaging teeth 211 is provided with the third engaging teeth 121, and the third engaging teeth 121 engage with the first engaging teeth 211, that is, the two opposite sides of the first engaging teeth 211 respectively engage with the second engaging teeth 321 and the third engaging teeth 121.

[0094] As shown in some embodiments, Figure 9As shown, further, one of the engaging member 120 and the transmission member 320 is the fixed component 400, and the other of the engaging member 120 and the transmission member 320 is the rotating component 500. When the transmission shaft 310 rotates, the engaging member 120 rotates relative to the transmission member 320 to drive the connecting member 210 to rotate. In the present embodiment, when the transmission member 320 rotates relative to the engaging member 120, the second engaging tooth 321 rotates relative to the third engaging tooth 121, and the first engaging tooth 211 rotates, i.e. the connecting member 210 rotates. When the transmission member 320 rotates synchronously with the engaging member 120, the second engaging tooth 321 rotates synchronously with the third engaging tooth 121, and the first engaging tooth 211 will not rotate, i.e. the connecting member 210 stops rotating.

[0095] As shown in FIG. 8, in some embodiments, the adjustable brush mechanism 10a further comprises a rotating member 800, which is rotatably connected to the mounting structure 100, and the connecting member 210 is fixedly connected to the rotating member 800, so that the connecting member 210 is rotatably connected to the mounting structure 100 through the rotating member 800. The transmission member 320 is connected to the rotating member 800, so that the transmission member 320 is connected to the connecting member 210 through the rotating member 800. When the mounting structure 100 rotates relative to the transmission member 320, the rotating member 800 rotates to drive the connecting member 210 to rotate. Figure 10 Figure 11 As shown in FIG. 8, in some embodiments, the adjustable brush mechanism 10a further comprises a rotating member 800, which is rotatably connected to the mounting structure 100, and the connecting member 210 is fixedly connected to the rotating member 800, so that the connecting member 210 is rotatably connected to the mounting structure 100 through the rotating member 800. The transmission member 320 is connected to the rotating member 800, so that the transmission member 320 is connected to the connecting member 210 through the rotating member 800. When the mounting structure 100 rotates relative to the transmission member 320, the rotating member 800 rotates to drive the connecting member 210 to rotate.

[0096] As shown in FIG. 8, in some embodiments, the adjustable brush mechanism 10a further comprises a rotating member 800, which is rotatably connected to the mounting structure 100, and the connecting member 210 is fixedly connected to the rotating member 800, so that the connecting member 210 is rotatably connected to the mounting structure 100 through the rotating member 800. The transmission member 320 is connected to the rotating member 800, so that the transmission member 320 is connected to the connecting member 210 through the rotating member 800. When the mounting structure 100 rotates relative to the transmission member 320, the rotating member 800 rotates to drive the connecting member 210 to rotate. Figure 10 Figure 11 As shown in FIG. 8, in some embodiments, the adjustable brush mechanism 10a further comprises a rotating member 800, which is rotatably connected to the mounting structure 100, and the connecting member 210 is fixedly connected to the rotating member 800, so that the connecting member 210 is rotatably connected to the mounting structure 100 through the rotating member 800. The transmission member 320 is connected to the rotating member 800, so that the transmission member 320 is connected to the connecting member 210 through the rotating member 800. When the mounting structure 100 rotates relative to the transmission member 320, the rotating member 800 rotates to drive the connecting member 210 to rotate.

[0097] As shown in FIG. 8, in some embodiments, the adjustable brush mechanism 10a further comprises a rotating member 800, which is rotatably connected to the mounting structure 100, and the connecting member 210 is fixedly connected to the rotating member 800, so that the connecting member 210 is rotatably connected to the mounting structure 100 through the rotating member 800. The transmission member 320 is connected to the rotating member 800, so that the transmission member 320 is connected to the connecting member 210 through the rotating member 800. When the mounting structure 100 rotates relative to the transmission member 320, the rotating member 800 rotates to drive the connecting member 210 to rotate. Figure 11 As shown in FIG. 8, in some embodiments, the adjustable brush mechanism 10a further comprises a rotating member 800, which is rotatably connected to the mounting structure 100, and the connecting member 210 is fixedly connected to the rotating member 800, so that the connecting member 210 is rotatably connected to the mounting structure 100 through the rotating member 800. The transmission member 320 is connected to the rotating member 800, so that the transmission member 320 is connected to the connecting member 210 through the rotating member 800. When the mounting structure 100 rotates relative to the transmission member 320, the rotating member 800 rotates to drive the connecting member 210 to rotate.

[0098] Figure 11 ​​​As shown, further, the part of the swing member 800 located in the pushing area 322 is provided with a roller 810, which rolls in the pushing area 322 to improve the flexibility of the swing member 800 in the pushing area 322, thereby reducing the resistance of the swing member 800 to swing, improving the smoothness of the swing of the swing member 800, and further improving the smoothness of the adjustment of the cleaning arm 220.

[0099] In another embodiment, the transmission member 320 is provided with a pushing hole extending along the radial direction of the transmission member 320, and the swing member 800 is arranged in the pushing hole. In this embodiment, when the swing member 800 swings, the transmission member 320 rotates relative to the mounting structure 100, and the inner wall of the pushing hole pulls the swing member 800 to swing.

[0100] Compared with the prior art, the present disclosure has at least the following advantages:

[0101] Since the cleaning arm 220 and the connecting member 210 have an included angle, the cleaning arm 220 will swing when the connecting member 210 rotates, so that when the rotating structure 300 drives the connecting member 210 to rotate, the cleaning arm 220 will swing towards or away from the ground to be passed through, so that the distance between the cleaning arm 220 and the ground to be passed through changes, thereby enabling the cleaning arm 220 to switch between the cleaning position and the stowed position, or enabling the compaction degree of the cleaning arm 220 on the ground to be passed through to change, so as to adjust the compaction degree of the cleaning arm 220 on the ground to be passed through to a predetermined value. Since the rotating structure 300 drives the connecting member 210 to rotate by rotating, it is not necessary to reserve the activity space of the rotating structure 300 in the thickness direction of the robot, so that the adjustable brush mechanism 10a occupies a smaller space in the thickness direction of the robot, i.e., the structure of the adjustable brush mechanism 10a in the thickness direction of the robot is more compact, which is beneficial to improve the passability of the robot.

[0102] The above-described embodiments only express several embodiments of the present disclosure, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the disclosed patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present disclosure, several modifications and improvements can be made, which are within the scope of the present disclosure. Therefore, the protection scope of the present disclosure patent should be subject to the appended claims.

Claims

1. An adjustable edge brush mechanism, comprising a mounting structure (100) and a brush structure (200), characterized in that, the brush structure (200) comprises a connecting piece (210) and a cleaning arm (220), the connecting piece (210) is rotationally connected to the mounting structure (100), the cleaning arm (220) is connected to the connecting piece (210), and an included angle is formed between the cleaning arm (220) and the connecting piece (210); the adjustable edge brush mechanism further comprises a rotation structure (300), the rotation structure (300) is connected to the connecting piece (210), and the rotation structure (300) drives the connecting piece (210) to rotate when it rotates, so that the distance between the cleaning arm (220) and the ground to be passed changes, or the compaction degree of the cleaning arm (220) on the ground to be passed changes.

2. The adjustable trimmer mechanism of claim 1, wherein, the rotation structure (300) comprises a transmission shaft (310) and a transmission piece (320), the mounting structure (100) and the transmission piece (320) are sleeved on the transmission shaft (310), and an included angle is formed between the axis of the transmission shaft (310) and the axis of the connecting piece (210); one of the mounting structure (100) and the transmission piece (320) is a fixed component (400), and the other of the mounting structure (100) and the transmission piece (320) is a rotating component (500), the transmission shaft (310) is fixedly connected with the fixed component (400), and the transmission shaft (310) is rotationally connected with the rotating component (500); wherein the transmission piece (320) is further connected with the connecting piece (210), and when the transmission shaft (310) rotates, the transmission piece (320) rotates relative to the mounting structure (100) to drive the connecting piece (210) to rotate.

3. The adjustable brim mechanism of claim 2, wherein, the rotation structure (300) drives the connecting piece (210) to rotate when it rotates, so that the cleaning arm (220) switches between a cleaning position and a stowed position; the adjustable edge brush mechanism further comprises a limiting structure (600), the limiting structure (600) is used for limiting the rotation stroke of the connecting piece (210), so that the connecting piece (210) stops rotating after the cleaning arm (220) switches position.

4. The adjustable brim mechanism of claim 3, wherein, the limiting structure (600) comprises a first limiting piece (610) and a second limiting piece (620), the first limiting piece (610) is fixedly connected to the mounting structure (100), the second limiting piece (620) is fixedly connected to the connecting piece (210), and the first limiting piece (610) abuts against the second limiting piece (620) after the cleaning arm (220) switches position.

5. The adjustable trimmer mechanism of claim 3, wherein, the rotation structure (300) further comprises an overrunning clutch (700), the overrunning clutch (700) is connected with the rotating component (500), so that the rotating component (500) remains fixed when the position of the cleaning arm (220) is switched.

6. An adjustable edge brush mechanism according to any one of claims 2 to 5, wherein, The connecting piece (210) is provided with a first engaging tooth (211) on a circumferential side, an angle exists between an axis of the transmission piece (320) and an axis of the connecting piece (210), the transmission piece (320) is provided with a second engaging tooth (321) adjacent to one side of the connecting piece (210), and the second engaging tooth (321) is engaged with the first engaging tooth (211); When the mounting structure (100) rotates relative to the transmission piece (320), the first engaging tooth (211) rolls along an extension direction of the second engaging tooth (321), so that the connecting piece (210) rotates.

7. The adjustable trimmer mechanism of claim 6, wherein, The mounting structure (100) comprises a mounting frame (110) and an engaging piece (120), the mounting frame (110) is rotationally sleeved on the transmission shaft (310), and the connecting piece (210) is rotationally connected to the mounting frame (110); the engaging piece (120) is sleeved on the transmission shaft (310), the first engaging tooth (211) is clamped between the engaging piece (120) and the second engaging tooth (321), the engaging piece (120) is provided with a third engaging tooth (121) adjacent to one side of the first engaging tooth (211), and the third engaging tooth (121) is engaged with the first engaging tooth (211); One of the engaging piece (120) and the transmission piece (320) is the fixed component (400), and the other of the engaging piece (120) and the transmission piece (320) is the rotating component (500); when the transmission shaft (310) rotates, the engaging piece (120) rotates relative to the transmission piece (320) to drive the connecting piece (210) to rotate.

8. The adjustable trimmer mechanism of claim 2, wherein, The adjustable edge brush mechanism further comprises a swinging piece (800), the swinging piece (800) is rotationally connected to the mounting structure (100), and the connecting piece (210) is fixedly connected to the swinging piece (800), so that the connecting piece (210) is rotationally connected to the mounting structure (100) through the swinging piece (800); the transmission piece (320) is connected to the swinging piece (800), so that the transmission piece (320) is connected to the connecting piece (210) through the swinging piece (800); When the mounting structure (100) rotates relative to the transmission piece (320), the swinging piece (800) swings to drive the connecting piece (210) to rotate.

9. The adjustable trimmer mechanism of claim 8, wherein, The transmission piece (320) is formed with a pushing area (322), and part of the swinging piece (800) is located in the pushing area (322); when the mounting structure (100) rotates relative to the transmission piece (320), an inner wall of the pushing area (322) pushes the swinging piece (800) to swing.

10. An automatic cleaning device, characterized in that The adjustable edge brush mechanism comprises the adjustable edge brush mechanism according to any one of claims 1 to 9.

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