Side brush assembly and cleaning device

Abstract

A side brush assembly and a cleaning device. The side brush assembly comprises a base (1), a side brush body (2), and a driving member (3). The side brush body (2) abuts against a side portion of the base (1), and the side brush body (2) is provided with a first guide portion (21); and the driving member (3) is provided with a second guide portion (31), and the second guide portion (31) and the first guide portion (21) work in conjunction with each other so as to drive the side brush body (2) to ascend and descend or / and swing.

Description

Side brush assembly and cleaning equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims priority to Chinese patent application No. 202410177479.X filed on February 8, 2024, which is incorporated herein by reference in its entirety. Technical Field

[0003] The present application belongs to the technical field of electrical equipment, and specifically relates to a side brush assembly and a cleaning device. Background Art

[0004] Cleaning devices such as sweeping robots usually have one or two side brushes on the bottom of the machine. When working, the side brushes will continue to rotate to clean the surface to be cleaned.

[0005] In the related art, the side brush assembly has a single usage scenario and cannot adapt to various cleaning conditions, so there is room for improvement. Summary of the Invention

[0006] The present application provides a side brush assembly and cleaning device that are intended to adapt to a variety of cleaning conditions to at least some extent.

[0007] In a first aspect of the present application, a side brush assembly is provided, which includes: a base; a side brush body, which rests against the side of the base and is provided with a first guide portion; a driving member, which is provided with a second guide portion, and the second guide portion and the first guide portion cooperate with each other to drive the side brush body to rise and fall and / or swing.

[0008] The side brush assembly provided by this application can, when the cleaning device is crawling over an obstacle or carpet, cooperate with the second guide portion and the first guide portion to raise the side brush body to avoid the obstacle or carpet, allowing the device to operate normally and improving the user experience. When the cleaning device is cleaning corners or other cleaning conditions, the second guide portion and the first guide portion cooperate to swing the side brush body to improve the cleaning effect, thus having excellent practicality.

[0009] In some embodiments, the driving member is rotatably connected to the side brush body, the second guide portion is provided at the top of the driving member, and the second guide portion can be cooperatively provided at the bottom of the first guide portion, and the second guide portion and the first guide portion cooperate with each other to drive the side brush body to lift

[0010] In some embodiments, at least a portion of at least one of the second guide portion and the first guide portion is a helical surface.

[0011] In some embodiments, at least a portion of at least one of the second guide portion and the first guide portion is a sloped surface.

[0012] In some embodiments, the second guide portion and the first guide portion each have a planar portion that is planarly contactable.

[0013] In some embodiments, a first guide protrusion is provided at the bottom of the side brush body, and the first guide portion is provided at the bottom of the first guide protrusion.

[0014] In some embodiments, a guide groove is provided at the bottom of the side brush body, and the first guide portion is provided at the bottom of the guide groove.

[0015] In some embodiments, a second guide protrusion is provided on the top of the driving member, and the second guide portion is provided on the top of the second guide protrusion.

[0016] In some embodiments, a guide shaft is provided at the bottom of the side brush body, and the driving member is rotatably connected to the guide shaft.

[0017] In some embodiments, under the condition that a first guide protrusion is provided at the bottom of the side brush body, the projection of the first guide protrusion on the side brush body is an arc shape, and the guide shaft is provided on the inner side of the first guide protrusion; a guide bushing is provided on the base, the driving member is rotatably mounted on the guide bushing, the guide shaft is liftably inserted into the guide bushing, and the first guide protrusion can be rotated to the outer circumferential surface of the guide bushing.

[0018] In some embodiments, the side brush assembly further includes: a limiting member disposed on a rotation path of the driving member to limit a rotation angle of the driving member.

[0019] In some embodiments, a circumferential surface of the driving member is provided with a notch, and the limiting member is provided in the notch.

[0020] In some embodiments, a stopper is provided on the circumferential surface of the driving member, and the limiting member is provided on the rotation path of the stopper.

[0021] In some embodiments, at least a portion of the peripheral surface of the driving member is provided with transmission teeth;

[0022] The side brush assembly further comprises a power piece, wherein an output end of the power piece is provided with a gear, and the gear is in transmission connection with the transmission gear.

[0023] In some embodiments, a through opening is provided on the peripheral surface of the base, one end of the side brush body is connected to the base, and the other end of the side brush body passes through the through opening, and the side brush body can perform at least one of the following movements in the through opening: lifting and lowering along the side wall of the through opening, and the side brush body can swing in the through opening.

[0024] In some embodiments, the through opening includes a swing opening and a limit opening that are connected to each other. The limit opening is arranged above the swing opening, and the side brush body can swing in the swing opening and rotate into the limit opening.

[0025] In some embodiments, the swing opening has a first side wall and a second side wall relative to each other, the limit opening has a third side wall and a fourth side wall relative to each other, the third side wall and the first side wall are located on the same straight line, the fourth side wall is arranged between the first side wall and the second side wall, and the side brush body can be raised and lowered along the straight line where the first side wall and the third side wall are located.

[0026] In some embodiments, the side brush assembly further comprises: a reset member disposed between at least one of the top and the bottom of the side brush body and the base.

[0027] In some embodiments, the reset element is a composite structure consisting of a compression spring and a torsion spring.

[0028] In some embodiments, the two connecting ends of the reset member are respectively connected to the base and the side brush body.

[0029] In some embodiments, a first limiting groove is provided on the circumferential surface of the base, the first limiting groove is connected to the through hole, and one connecting end of the reset member is provided in the first limiting groove; a connecting block is provided on the side brush body, a second limiting groove is formed between the connecting block and the side brush body, and the other connecting end of the reset member is provided in the second limiting groove.

[0030] In some embodiments, a position sensor is further provided on the base to determine the position of the side brush body.

[0031] In a second aspect of the present application, the present application further provides a cleaning device, which includes a main body and the above-mentioned side brush assembly, and the side brush assembly is assembled on the main body.

[0032] When a cleaning device with the above-mentioned side brush assembly is climbing over an obstacle or carpet, the second guide portion and the first guide portion can cooperate with each other to keep the side brush body in a raised position to avoid the obstacle or carpet, allowing the device to operate normally and improving the user experience. When the cleaning device is cleaning corners or other cleaning conditions, the second guide portion and the first guide portion can cooperate with each other to make the side brush body swing to improve the cleaning effect, which has excellent practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0034] FIG1 is a schematic structural diagram showing a side brush assembly in a first cleaning position in one or more embodiments of the present application;

[0035] FIG2 shows a schematic structural diagram of FIG1 from another perspective;

[0036] FIG3 shows a schematic structural diagram of the side brush assembly in FIG1 in an obstacle avoidance position;

[0037] FIG4 shows a schematic structural diagram of FIG3 from another perspective;

[0038] Figure 5 shows a schematic structural diagram of the side brush body;

[0039] FIG6 shows a schematic diagram of the internal structure of the side brush body;

[0040] FIG7 shows a schematic structural diagram of FIG5 from another perspective;

[0041] FIG8 shows a schematic structural diagram of a driving member;

[0042] FIG9 is a schematic diagram showing the state of the side brush body and the driving member when the side brush assembly is in the obstacle avoidance position;

[0043] FIG10 shows a schematic structural diagram of the base;

[0044] FIG11 shows a schematic diagram of the assembly of the driving member and the power member;

[0045] FIG12 is a schematic structural diagram showing the side brush assembly in the second cleaning position.

[0046] FIG13 shows a schematic structural diagram of a reset member;

[0047] FIG14 is a schematic diagram showing the state of the side brush body and the driving member when the side brush assembly is in the first cleaning position and the second cleaning position;

[0048] Explanation of the accompanying drawings: Base-1, through opening-11, swing opening-111, limit opening-112, accommodating chamber-12, first limit groove-13; Side brush body-2, first guide part-21, guide shaft-22; Transmission gear-23, first guide protrusion-24, connecting block-25, side brush-26, second limit groove-27; Driving member-3, second guide part-31, second guide protrusion-32, notch-33, transmission tooth-34; First motor-4; Guide bushing-5; Limiting member-6; Position sensor-7; Power member-8, gear-81; Resetting member-9; Helical surface-a1, plane part-a2; First side wall-b1, second side wall-b2, third side wall-b3, fourth side wall-b4. DETAILED DESCRIPTION

[0049] In order to enable those skilled in the art to understand the present application more clearly, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of this application.

[0050] In the prior art, the side brushes of cleaning devices such as robot vacuums are constantly rotating during operation. When the cleaning device is climbing over obstacles or carpets, this can hinder the machine's climbing or cause the carpet to roll up, causing malfunctions and impacting the user experience. Furthermore, the side brush assembly cannot be adjusted at any angle when attached to the main unit, limiting cleaning effectiveness when cleaning corners and other areas, leaving room for improvement.

[0051] Based on the above technical problems, the present application provides a side brush assembly to be suitable for various cleaning conditions.

[0052] The side brush assembly provided herein includes a base, a side brush body, and a drive member. The side brush body rests against the side of the base, is provided with a first guide portion, and the drive member is provided with a second guide portion. The second guide portion and the first guide portion cooperate to drive the side brush body to rise and fall and / or swing.

[0053] Specifically, when the cleaning device is climbing over an obstacle or carpet, the second guide portion and the first guide portion can cooperate with each other to keep the side brush body in a raised position to avoid the obstacle or carpet, allowing the device to operate normally and improving the user experience. When the cleaning device is cleaning corners and other cleaning conditions, the second guide portion and the first guide portion can cooperate with each other to make the side brush body swing to improve the cleaning effect, which has excellent practicality.

[0054] Based on the above design ideas, this application further describes the side brush assembly.

[0055] FIG1 is a schematic diagram illustrating the structure of the side brush assembly in a first cleaning position in one or more embodiments of the present application. FIG2 is a schematic diagram illustrating the structure of FIG1 from another perspective. FIG3 is a schematic diagram illustrating the structure of the side brush assembly in FIG1 in an obstacle avoidance position. FIG4 is a schematic diagram illustrating the structure of FIG3 from another perspective.

[0056] With reference to Figures 1 to 4 , the present application provides a side brush assembly comprising a base 1, a side brush body 2, and a drive member 3. The side brush body 2 rests against the side of the base 1, and a first guide portion 21 is provided at the bottom of the side brush body 2. The drive member 3 is rotatably connected to the side brush body 2, and a second guide portion 31 is provided at the top of the drive member 3. The second guide portion 31 can be mateably disposed at the bottom of the first guide portion 21. At least a portion of the second guide portion 31 and / or the first guide portion 21 is a helical surface a1.

[0057] In the side brush assembly provided herein, the driver 3 is rotatably connected to the guide shaft 22, allowing the driver 3 to rotate relative to the side brush body 2. Since at least a portion of the second guide portion 31 and / or the first guide portion 21 is a helical surface a1, the driver 3 can be controlled to rotate, causing the second guide portion 31 of the driver 3 to rotate along the mating surface with the first guide portion 21, thereby raising the side brush body 2 along the side of the base 1, placing the side brush body 2 in a raised position (as shown in Figures 3 and 4). This allows the side brush body 2 to avoid obstacles or carpets, allowing the device to operate normally.

[0058] With reference to Figures 1 and 2, when the side brush body 2 rests against the base 1, it is in normal cleaning mode, and this position can be defined as the first cleaning position. With reference to Figures 3 and 4, when the side brush body 2 is raised along the side of the base 1 and in the raised position, the side brush body 2 is in the obstacle avoidance position. By controlling the side brush body 2 to switch between the first cleaning position and the obstacle avoidance position, it can adapt to different operating conditions, providing excellent practicality.

[0059] 1 to 4 , in some embodiments, the side brush assembly may further include a first motor 4 , and the first motor 4 is configured to drive the side brush 26 on the side brush body 2 to rotate.

[0060] Figure 5 shows a schematic diagram of the structure of the side brush body, and Figure 6 shows a schematic diagram of the internal structure of the side brush body. In some embodiments, two or more transmission gears 23 are provided within the side brush body 2, one of which is mounted on the output end of the first motor 4, and the other is mounted on the rotating shaft of the side brush 26. The first motor 4 sequentially drives each transmission gear 23 to rotate, thereby driving the side brush 26 to rotate and perform cleaning operations. The side brush 26 is driven by two or more transmission gears 23, which, provided that the size requirements of the side brush 26 are met, can provide space for the arrangement of other components. In other embodiments, the first motor 4 can also be directly connected to the rotating shaft of the side brush 26, which is not limited here.

[0061] 1 to 4 , in some embodiments, the first motor 4 is disposed on the top of the side brush body 2 , which can reduce the overall height of the side brush body 2 to better perform cleaning work.

[0062] Figure 7 shows a schematic diagram of the structure of Figure 5 from another perspective. In conjunction with Figure 7, in some embodiments, a columnar body can be provided at the bottom of the side brush body 2. This columnar body can be integrally formed with the outer shell of the side brush body 2 to serve as a guide shaft 22 for driving the body. This guide shaft 22 can be coaxial with the output end of the first motor 4, or it can be non-coaxial with the output end of the first motor 4, without limitation.

[0063] 7 , in some embodiments, a first guide protrusion 24 may be provided at the bottom of the side brush body 2. The first guide protrusion may be integrally formed with the housing of the side brush body 2. The first guide portion 21 is provided on the side of the first guide protrusion 24 facing away from the side brush body 2, i.e., the first guide protrusion 24 is provided at the bottom of the first guide protrusion 24.

[0064] In some embodiments, the driving member 3 is rotatably mounted on the guide shaft 22 , and the driving member 3 can be controlled to rotate around the guide shaft 22 .

[0065] Figure 8 shows a schematic diagram of the structure of the driver. In some embodiments, the top of the driver 3 can be provided with a second guide protrusion 32, which can be integrally formed with the driver 3. The second guide portion 31 is provided on the side of the second guide protrusion 32 facing away from the driver 3, that is, the second guide protrusion 32 is provided on the top of the driver 3.

[0066] Since at least a portion of the second guide portion 31 and / or the first guide portion 21 is a spiral surface a1, the driving member 3 is controlled to rotate about the guide shaft 22, so that the second guide portion 31 of the driving member 3 rotates relative to the first guide portion 21. When the side brush body 2 is in the first cleaning position, during the process of the driving member 3 rotating about the guide shaft 22, since the side brush body 2 abuts against the base 1, the side brush body 2 cannot rotate with the driving member 3, so that the second guide portion 31 of the driving member 3 rotates along the mating surface with the first guide portion 21, thereby driving the first guide portion 21 to rise, and then raising the side brush body 2 to a set height, so that the side brush body 2 switches from the first cleaning position to the obstacle avoidance position to avoid obstacles or carpets, thereby ensuring the normal operation of the device and improving the user experience.

[0067] 7 and 8 , in some embodiments, at least a portion of the second guide portion 31 and the first guide portion 21 are both helical surfaces a1. In other embodiments, the second guide portion 31 may be the helical surface a1 and the first guide portion 21 may be a plane, or the second guide portion 31 may be a plane and the first guide portion 21 may be the helical surface a1, without limitation.

[0068] In conjunction with Figures 7 and 8, in some embodiments, the second guide portion 31 and the first guide portion 21 further have a flat surface portion a2 that can be in contact with each other. After the second guide portion 31 drives the first guide portion 21 to rise to a set height, the second guide portion 31 continues to rotate, so that the flat surface portion a2 on the first guide portion 21 is supported on the flat surface portion a2 of the second guide portion 31, as shown in Figure 9, thereby stably supporting the side brush body 2 and keeping the side brush body 2 stably in a raised position to maintain it in an obstacle avoidance position. In addition, if the power member 8 used to drive the driving member 3 to rotate stops working, the side brush body 2 can also be stably raised to maintain it in an obstacle avoidance position.

[0069] In conjunction with Figures 7 and 8 , in some embodiments, the projection of the first guide protrusion 24 on the side brush body 2 and the projection of the second guide protrusion 32 on the driver 3 can both be arc-shaped, meaning that both the first guide protrusion 24 and the second guide protrusion 32 are non-enclosed structures. When the driver 3 rotates about the guide shaft 22 and the second guide protrusion 32 on the driver 3 rotates below the first guide protrusion 24, the second guide portion 31 and the first guide portion 21 cooperate to drive the first guide portion 21 upward, thereby raising the side brush body 2 to a set height. This allows the side brush body 2 to avoid obstacles or carpets, ensuring normal operation of the device and improving the user experience.

[0070] 7 , in some embodiments, the first guide protrusion 24 may be spaced apart from the guide shaft 22 so that a guide space is formed between the first guide protrusion 24 and the guide shaft 22 .

[0071] Figure 10 shows a schematic structural diagram of the base. Referring to Figures 1 to 4 and Figure 10 , the base 1 can be provided with a guide bushing 5. The driving member 3 is rotatably mounted on the guide bushing 5. The guide shaft 22 is liftably inserted into the guide bushing 5. The first guide protrusion 24 is rotated onto the outer circumferential surface of the guide bushing 5. Specifically, when the side brush body 2 is in the first cleaning position, the guide bushing 5 is positioned within the first guide protrusion 24 (i.e., within the guide space), filling the guide space. This not only stably supports the side brush body 2 and prevents it from shaking, but also prevents impurities, particularly lint on the surface being cleaned, from entering the guide space and affecting the operation of the device. When the side brush body 2 switches from the first cleaning position to the obstacle avoidance position, the first guide portion 21 rotates relative to the guide bushing 5, and the guide shaft 22 is relatively lifted within the guide bushing 5, causing the guide bushing 5 to rotate out of the first guide protrusion 24 (i.e., the guide space).

[0072] In some embodiments, the guide bushing 5 can be integrally formed on the base 1, the guide shaft 22 can be inserted into the guide bushing 5 with a clearance fit, and the driving member 3 can also be assembled on the guide bushing 5 with a clearance fit, so that the guide shaft 22 and the driving member 3 can both rotate relative to the guide bushing 5, which will not be elaborated here.

[0073] It should be noted that a guide groove may also be provided at the bottom of the side brush body 2, and the first guide portion 21 is provided at the bottom of the guide groove. The specific implementation scheme is similar to the above and will not be described in detail here.

[0074] In conjunction with Figures 1 and 10 , in some embodiments, the side brush assembly may further include a stopper 6. The stopper 6 is disposed along the rotation path of the driver 3 to limit the rotation angle of the driver 3. Specifically, when the driver 3 rotates and the flat surface a2 of the first guide portion 21 of the side brush body 2 is supported on the flat surface a2 of the second guide portion 31, the driver 3 is blocked by the stopper 6 and stops rotating, placing the side brush body 2 in an obstacle avoidance position and maintaining a raised position, thereby enabling the side brush body 2 to avoid obstacles or carpets.

[0075] With reference to Figures 1 to 4 and 8 , in some embodiments, a notch 33 may be provided on the circumference of the driving member 3, with the stopper 6 positioned within the notch 33. A distance exists between the stopper 6 and the notch 33, allowing the driving member 3 to rotate a set angle to elevate the side brush body 2. When the side brush body 2 is raised into position, the driving member 3 is blocked by the stopper 6, stopping rotation and maintaining the side brush body 2 in the raised position.

[0076] In other embodiments, the notch 33 may not be provided on the circumference of the driving member 3. For example, the driving member 3 may be annular, the limiting member 6 may be provided on the outer side of the circumference of the driving member 3, and a stopper may be provided on the circumference of the driving member 3. The stopper may be blocked by the limiting member to prevent the rotation of the driving member 3. This method will occupy a large space.

[0077] In conjunction with Figures 1 to 4 , in some embodiments, the side brush assembly may further include a position sensor 7. Position sensor 7 determines the height of the side brush body 2. Specifically, when the side brush body 2 rises to the obstacle avoidance position, position sensor 7 confirms that the side brush body 2 has reached its position and sends a signal to the controller indicating that the side brush body 2 has reached its position. In response to the signal, the controller instructs the driver 3 to stop rotating, controlling the driver 3 to stop rotating and maintaining the side brush body 2 in its raised position.

[0078] In some embodiments, the rotation of the driving member 3 can be controlled by setting a limiter 6 or by using a position sensor 7. In some embodiments, both the limiter 6 and the position sensor 7 can be included to achieve simultaneous hardware and software control, or only one of the above implementation methods can be included, which is not limited here.

[0079] Figure 11 shows a schematic diagram of the assembly of the driving member and the power member. In combination with Figures 1 to 4, Figure 8 and Figure 11, in some embodiments, at least a portion of the circumference of the driving member 3 can be provided with transmission teeth 34. The side brush assembly can also include a power member 8, and the output end of the power member 8 can be provided with a gear 81, and the gear 81 is in transmission connection with the meshing teeth on the driving member 3. In specific implementation, the power member 8 is started, and the gear 81 on the power member 8 drives the driving member 3 to rotate around the guide shaft 22, so that the second guide portion 31 of the driving member 3 rotates along the mating surface with the first guide portion 21, so as to drive the first guide portion 21 to lift, and then lift the side brush body 2. When the driving member 3 is blocked by the limit member 6, the power member 8 stops outputting, and the driving member 3 stops rotating, so that the side brush body 2 remains in the lifted state.

[0080] 1 to 4 , in some embodiments, the power member 8 may be a second motor, which may be arranged in parallel with the first motor 4 . The second motor may be arranged above the driving member 3 , which may reduce the space occupied by the motor.

[0081] In other embodiments, the output end of the power member 8 may also be directly coaxially connected to the driving member 3. For example, the power member 8 is disposed below the driving member 3.

[0082] In conjunction with Figure 10, in some embodiments, a through-hole 11 may be provided on the circumferential surface of the base 1. One end of the side brush body 2 is connected to the base 1, and the other end of the side brush body 2 passes through the through-hole 11. The side brush body 2 can be raised and lowered in the through-hole 11 along the side wall of the through-hole 11. A accommodating cavity 12 is provided in the base 1, and the above-mentioned driving member 3, power member 8, limit member 6 and first motor 4 can all be provided in the base 1. Among them, the guide bushing 5 can be fixed to the bottom of the base 1 in an integrally formed manner, and the guide shaft 22 is inserted into the guide bushing 5 with a clearance fit. The bottom of the driving member 3 can be fittedly provided on the bottom of the base 1 and is loosely fitted on the guide bushing 5. The limit member 6 can also be fixed to the bottom of the base 1 in an integrally formed manner. The position sensor 7 can be provided in the base 1 or outside the base 1, and there is no restriction here.

[0083] In conjunction with Figures 1 to 4, 10, and 14, in some embodiments, the passage opening 11 may include a communicating swinging opening 111 and a stop opening 112. The stop opening 112 is disposed above the swinging opening 111, allowing the side brush body 2 to swing within the swinging opening 111 and rotate into the stop opening 112. When the side brush body 2 rests against one side of the swinging opening 111, the side brush body 2 is in a first cleaning position and in normal cleaning mode. If an obstacle or carpet is encountered, the driving member 3 can be controlled to rotate, causing the side brush body 2 to rise along one side of the swinging opening 111, placing the side brush body 2 in a raised position and shifting to an obstacle avoidance position to avoid the obstacle or carpet. Alternatively, the side brush body 2 can be controlled to swing from one side of the swinging opening 111 to the other side to adjust the angle of the side brush body 2 on the base 1, enabling it to clean corners and other special conditions (as shown in Figure 12). During the process of the side brush body 2 swinging to the other side of the swing opening 111, the guide shaft 22 on the side brush body 2 rotates in the guide bushing 5. Under the condition that the side brush body 2 swings to the other side of the swing opening 111, the position of the side brush body 2 can be defined as the second cleaning position.

[0084] In conjunction with Figures 1 to 4, Figure 10, Figure 12 and Figure 14, in some embodiments, the swing opening 111 has a first side wall b1 and a second side wall b2 relative to each other. The limiting opening 112 has a third side wall b3 and a fourth side wall b4 relative to each other. The third side wall b3 and the first side wall b1 are located on the same straight line. The side brush body 2 can be raised and lowered along the straight line where the first side wall b1 and the third side wall b3 are located. The fourth side wall b4 is arranged between the first side wall b1 and the second side wall b2, that is, the top projection of the fourth side wall b4 falls within the swing opening 111. In a specific implementation, the central angle formed by the swing opening 111 relative to the guide shaft 22 is greater than the central angle formed by the limiting opening 112 relative to the guide shaft 22, the size of the swing opening 111 is greater than the size of the outer shell of the side brush body 2, and the size of the limiting opening 112 is roughly the same as the size of the outer shell of the side brush body 2. When the side brush body 2 is in the first cleaning position, the power member 8 is not started, the first motor 4 drives the side brush on the side brush body 2 to rotate, the second guide portion 31 on the drive member 3 and the first guide portion 21 on the side brush body 2 are in a mutually fitting position, the side brush body 2 rests on the first side wall of the swing opening 111, and the drive member 3 and the limit member 6 are separated. When encountering an obstacle or passing through a carpet, the power member 8 is started to rotate. Since the side brush body 2 rests on the first side wall of the swing opening 111, the side brush body 2 cannot rotate. The second guide portion 31 of the drive member 3 drives the first guide portion 21 to lift, so that the side brush body 2 is lifted along the straight line where the first and third side walls are located, and rises into the limit opening 112, so that the side brush body 2 remains in a lifted position to avoid obstacles or pass through carpets, so that the device can operate normally and improve user experience. When the device avoids an obstacle or passes through a carpet, the power part 8 can be controlled to rotate in the opposite direction, so that the second guide part 31 of the driving part 3 rotates in the direction away from the first guide part 21 on the side brush body 2, so that the side brush body 2 drops from the limiting opening 112 to the swing opening 111, and rests on the first side wall of the swing opening 111, and continues to maintain the first cleaning position.

[0085] In conjunction with Figures 1 to 4, in some embodiments, the side brush assembly may further include a reset member 9. The reset member 9 is disposed between the side brush body 2 and the base 1. When the side brush body 2 is in the first cleaning position, the reset member 9 is in a deformed state, and the side brush body 2 is lifted to compress the reset member 9 to continue to deform, so that the side brush body 2 switches from the first cleaning position to the obstacle avoidance position. When the side brush body 2 switches from the obstacle avoidance position to the first cleaning position, the reset member 9 resumes its deformation and applies a force to the side brush body 2 so that the first guide portion 21 of the side brush body 2 and the second guide portion 31 of the driving member 3 remain in contact, so that the side brush body 2 can smoothly return to the first cleaning position.

[0086] Under the condition that the reset member 9 is provided, when the device avoids an obstacle or passes through a carpet, there is no need to control the power member 8 to rotate in the opposite direction. The side brush body 2 can be moved downward by relying on the reset member 9 to restore the deformation and apply a force to the side brush body 2, thereby driving the driving member 3 to rotate in the opposite direction until the side brush body 2 falls from the limiting opening 112 to the through opening 11, and rests on the first side wall of the swing opening 111, and continues to maintain the first cleaning position.

[0087] 1 to 4 , in some embodiments, a restoring member 9 may be disposed between the top of the side brush body 2 and the base 1. When the side brush assembly is in a cleaning mode or in a raised position, the restoring member 9 is in a compressed state.

[0088] Figure 13 shows a schematic diagram of the structure of the reset member. In conjunction with Figures 1 to 4 and Figure 13, in some embodiments, the reset member 9 can be mounted on the first motor 4. The reset member 9 has two connecting ends, a first connecting end 91 and a second connecting end 91, which are connected to the base 1 and the side brush body 2, respectively.

[0089] In conjunction with Figures 1 to 4 and Figure 13, during specific implementation, a first limiting groove 13 can be provided on the circumferential surface of the base 1. The first limiting groove 13 is connected to the through-hole, that is, the opening of the first limiting groove 13 faces downward, and the first connecting end 91 of the reset member 9 is provided in the first limiting groove 13. A connecting block 25 is provided on the side brush body 2, and a second limiting groove 27 with an opening facing the circumferential direction is formed between the connecting block 25 and the side brush body 2. The other connecting end of the reset member 9 is provided in the second limiting groove 27 to realize the assembly of the reset member 9 on the side brush assembly. In other embodiments, the two connecting ends of the reset member 9 can be welded to the side wall of the base 1 and the top of the side brush body 2, respectively, and there is no limitation here.

[0090] From the above, it can be seen that the above-mentioned reset member 9 is a composite structure composed of a compression spring and a torsion spring, which can provide axial thrust and circumferential tension at the same time, so that the side brush body 2 is subjected to axial thrust and axial tension at the same time, so that in the absence of the action of the power member 8, the first guide part 21 of the side brush body 2 and the second guide part 31 of the driving member 3 are always in a fitted state (as shown in Figure 14).

[0091] It should be noted that the reset member 9 can also be arranged between the bottom of the side brush body 2 and the base 1. When the side brush assembly is in the first cleaning position or switched to the obstacle avoidance position, the reset member 9 is in a stretched deformation state.

[0092] Since the size of the limiting opening 112 is smaller than that of the swing opening 111, the side brush body 2 can swing in the swing opening 111 so that the angle of the side brush body 2 on the device can be adjusted. In a specific implementation, the power member 8 can be controlled to rotate in the opposite direction. Since the reset member 9 applies a force to the side brush body 2, the first guide portion 21 of the side brush body 2 and the second guide portion 31 of the driving member 3 are always in a fitting state, so that the side brush body 2 and the driving member 3 rotate synchronously until the side brush body 2 abuts against the second side wall of the swing opening 111. At this time, the side brush body 2 is in the second cleaning position, and the angle of the side brush body 2 on the device can be adjusted to achieve cleaning of special working conditions such as corners. After cleaning special working conditions such as corners, the power member 8 can be controlled to rotate in the forward direction. Since the reset member 9 applies a force to the side brush body 2, the first guide portion 21 of the side brush body 2 and the guide portion of the second body are always in a fitted state, so that the side brush body 2 and the driving member 3 rotate synchronously under the drive of the power member 8 until the side brush body 2 abuts against the first side wall of the swing opening 111, so that the side brush body 2 is in the first cleaning position and continues to maintain the normal cleaning mode.

[0093] It should be noted that when the first guide portion 21 of the side brush body 2 and the second guide portion 31 of the driver 3 are in contact, if the side brush 26 hits an obstacle or the force applied by the user to the side brush 26 is greater than the force applied by the reset member 9, the first guide portion 21 of the side brush body 2 can separate from the second guide portion 31 of the driver 3. In this case, the driver 3 is not driven to rotate by the guide portion, thereby protecting the power member 8 and the transmission between the power member 8 and the driver 3 from damage.

[0094] In addition, in some embodiments, at least a portion of the first guide portion 21 of the side brush body 2 and the second guide portion 31 of the driver 3 are inclined surfaces, and the driver 3 moves back and forth in a straight line. When the side brush body 2 is in the first cleaning position, the driver 3 moves toward the side brush body. Since the side brush body 2 is against the base 1, the side brush body 2 cannot be pushed by the driver 3, causing the second guide portion 31 of the driver 3 to move along the mating surface with the first guide portion 21, thereby driving the first guide portion 21 to rise, and then raising the side brush body 2 to a set height, so that the side brush body 2 switches from the first cleaning position to the obstacle avoidance position to avoid obstacles or carpets, thereby allowing the device to operate normally and improving the user experience. At the same time, by controlling the driver 3 to move in the opposite direction, under the pressure of the reset member 9, the side brush body 2 can be driven to move to the second cleaning position to adapt to special cleaning conditions such as corners, thereby improving cleaning efficiency and having good practicality.

[0095] In summary, the side brush assembly provided in the present application can be switched between the first cleaning position, the second cleaning position and the obstacle avoidance position to adapt to different cleaning conditions, and has good practicality.

[0096] Based on the above-mentioned side brush assembly, the present application also provides a cleaning device, which includes a main body and the above-mentioned side brush assembly, and the above-mentioned side brush assembly is assembled on the main body.

[0097] The cleaning device with the above-mentioned side brush assembly has a side brush body 2 that can switch between a first cleaning position, a second cleaning position, and an obstacle avoidance position to adapt to different cleaning conditions, and has good practicality.

[0098] In some embodiments, a controller and various sensors may be installed on the main unit. The sensors can monitor the surrounding environment and transmit corresponding monitoring parameters to the controller, which then controls the corresponding actions of the side brush assembly based on the monitoring parameters. The sensors may include visual sensors and floor material sensors. Based on the monitoring data from the floor material sensor and the visual sensor, the controller can determine whether there are obstacles such as carpets in the direction of travel of the cleaning device. The sensors used are not limited to the visual sensors and floor material sensors mentioned above; infrared sensors and other sensors may also be used, and this is not a limitation here.

[0099] In some embodiments, the cleaning device may be a sweeping robot. Of course, the cleaning device may also be other cleaning devices with a side brush assembly, which is not limited here.

[0100] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0101] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0102] In this application, unless otherwise specified or limited, the terms "connect," "fix," etc. should be understood broadly. For example, "fix" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0103] In addition, the terms "first," "second," and so on, used in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0104] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A side brush assembly, comprising: base; a side brush body resting against a side portion of the base, the side brush body being provided with a first guide portion; The driving member is provided with a second guide portion, and the second guide portion cooperates with the first guide portion to drive the side brush body to rise and fall and / or swing.

2. The side brush assembly according to claim 1, wherein the driving member is rotatably connected to the side brush body, the second guide portion is arranged at the top of the driving member, the second guide portion can be cooperatively arranged at the bottom of the first guide portion, and the second guide portion and the first guide portion cooperate with each other to drive the side brush body to lift.

3. The side brush assembly according to claim 1 or 2, wherein: At least a portion of at least one of the second guide portion and the first guide portion is a helical surface.

4. The side brush assembly according to claim 1 or 2, wherein: At least a portion of at least one of the second guide portion and the first guide portion is an inclined surface.

5. The side brush assembly according to any one of claims 1 to 4, wherein: The second guide portion and the first guide portion each have a planar portion capable of planar contact.

6. The side brush assembly according to any one of claims 1 to 5, wherein: A first guide protrusion is provided at the bottom of the side brush body, and the first guide portion is provided at the bottom of the first guide protrusion.

7. The side brush assembly according to any one of claims 1 to 5, wherein: A guide groove is provided at the bottom of the side brush body, and the first guide portion is provided at the bottom of the guide groove.

8. The side brush assembly according to any one of claims 1 to 7, wherein: A second guide protrusion is provided on the top of the driving member, and the second guide portion is provided on the top of the second guide protrusion.

9. The side brush assembly according to any one of claims 1 to 8, wherein: A guide shaft is provided at the bottom of the side brush body, and the driving member is rotatably connected to the guide shaft.

10. The side brush assembly of claim 9, wherein: Under the condition that a first guide protrusion is provided at the bottom of the side brush body, the projection of the first guide protrusion on the side brush body is in an arc shape, and the guide shaft is provided inside the first guide protrusion; A guide bushing is provided on the base, the driving member is rotatably sleeved on the guide bushing, the guide shaft is liftably inserted into the guide bushing, and the first guide protrusion can be rotated to the outer peripheral surface of the guide bushing.

11. The side brush assembly according to any one of claims 2, 9 and 10, wherein: The side brush assembly further comprises: The limiting member is arranged on the rotation path of the driving member to limit the rotation angle of the driving member.

12. The side brush assembly of claim 11, wherein: A notch is provided on the circumferential surface of the driving member, and the limiting member is arranged in the notch.

13. The side brush assembly of claim 11, wherein: A stopper is provided on the circumferential surface of the driving member, and the limiting member is provided on the rotation path of the stopper.

14. The side brush assembly according to any one of claims 1 to 13, wherein: At least a portion of the circumference of the driving member is provided with transmission teeth; The side brush assembly further comprises a power piece, wherein an output end of the power piece is provided with a gear, and the gear is in transmission connection with the transmission gear.

15. The side brush assembly according to any one of claims 1 to 14, wherein: A through-opening is provided on the peripheral surface of the base, one end of the side brush body is connected to the base, and the other end of the side brush body passes through the through-opening, and the side brush body can perform at least one of the following movements in the through-opening: lifting and lowering along the side wall of the through-opening, and the side brush body can swing in the through-opening.

16. The side brush assembly of claim 15, wherein: The through opening includes a swing opening and a limit opening which are connected to each other. The limit opening is arranged above the swing opening. The side brush body can swing in the swing opening and rotate into the limit opening.

17. The side brush assembly of claim 16, wherein: The swing opening has a first side wall and a second side wall relative to each other, the limit opening has a third side wall and a fourth side wall relative to each other, the third side wall and the first side wall are located on the same straight line, the fourth side wall is arranged between the first side wall and the second side wall, and the side brush body can be raised and lowered along the straight line where the first side wall and the third side wall are located.

18. The side brush assembly according to any one of claims 1 to 17, wherein: The side brush assembly further comprises: A reset member is arranged between at least one of the top and the bottom of the side brush body and the base.

19. The side brush assembly of claim 18, wherein: The reset element is a composite structure composed of a compression spring and a torsion spring.

20. The side brush assembly of claim 18 or 19, wherein: The two connecting ends of the reset member are respectively connected to the base and the side brush body.

21. The side brush assembly of claim 20, wherein: A first limiting groove is provided on the circumferential surface of the base, the first limiting groove is communicated with the through hole, and a connecting end of the reset member is provided in the first limiting groove; A connecting block is provided on the side brush body, a second limiting groove is formed between the connecting block and the side brush body, and the other connecting end of the reset member is provided in the second limiting groove.

22. The side brush assembly according to any one of claims 1 to 21, wherein: A position sensor is also provided on the base to determine the position of the side brush body.

23. A cleaning device, wherein: The cleaning device comprises a main body and a side brush assembly according to any one of claims 1 to 22, wherein the side brush assembly is assembled on the main body.

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