Cleaning assembly and cleaning equipment

Abstract

The invention provides a cleaning assembly and cleaning equipment, and relates to the technical field of cleaning assemblies. The cleaning assembly comprises a fixing frame, a swing arm and a power assembly. The fixing frame is configured to be connected with a main body of the cleaning equipment, and a first rotating shaft is arranged on the fixing frame; the swinging arm is rotationally connected with the fixing frame through the first rotating shaft, and a rotatable cleaning piece is arranged on the swinging arm; the power assembly drives the cleaning part to rotate, and the power assembly drives the swing arm to rotate relative to the fixing frame so as to drive the swing arm to move between the retracting position and the stretching position; the first rotating shaft is independent of the power assembly. The power assembly drives the fixing frame and the swing arm to rotate relatively, the cleaning range is enlarged, cleaning blind areas are reduced, and the cleaning effect is improved. The first rotating shaft is independent of the power assembly, so that the arrangement flexibility and compactness of the power assembly are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning components, and in particular to a cleaning component and a cleaning device. Background Art

[0002] Cleaning equipment includes sweeping robots, mopping robots, sweeping and mopping robots, floor scrubbers, etc. With the improvement of living standards, cleaning equipment is increasingly used in households, and the requirements are also getting higher and higher. When existing cleaning equipment is used to clean special areas such as indoor corners, due to the size of the cleaning equipment itself, the cleaning parts cannot cover the surface to be cleaned, resulting in blind spots for cleaning, resulting in incomplete cleaning, affecting the cleaning effect and user experience. Summary of the invention

[0003] In view of the above problems existing in the prior art, the present invention provides a cleaning component and a cleaning device to improve the problems of large blind spots and incomplete cleaning when the existing cleaning devices clean special areas such as corners.

[0004] To achieve the above-mentioned purpose and other related purposes, the first aspect of the present invention provides a cleaning component, which includes a fixed frame, a swing arm and a power component; the fixed frame is configured to be connected to the main body of the cleaning device, and a first rotating shaft is provided on the fixed frame; the swing arm is rotatably connected to the fixed frame through the first rotating shaft, and a rotatable cleaning member is provided on the swing arm; a power component drives the cleaning member to rotate, and the power component drives the swing arm to rotate relative to the fixed frame to drive the swing arm to move between a retracted position and an extended position; wherein the first rotating shaft is provided independently of the power component.

[0005] The cleaning component of the present application includes a fixed frame and a swing arm that can rotate relative to each other. The fixed frame and the swing arm are driven by a power component to rotate relative to each other, so that the cleaning range of the cleaning member changes. When cleaning an ordinary surface to be cleaned, the cleaning component is in a regular cleaning mode and the swing arm is in a retracted position; when cleaning special areas such as corners, the cleaning component is in a special cleaning mode and the swing arm is in an extended position, thereby cleaning areas that the cleaning member cannot cover in the regular cleaning mode, increasing the cleaning range, reducing blind spots, improving cleaning effects, and effectively improving user satisfaction.

[0006] When a power assembly is used to realize the swing of the swing arm and the self-rotation of the cleaning member, the transmission system involved in the power assembly is relatively complex, and the internal space of the swing arm is very limited. The arrangement flexibility and compactness of the power assembly are very critical to space saving and transmission stability. By making the first rotating shaft independent of the power assembly, the arrangement position of the first rotating shaft can be avoided from affecting the arrangement of the power assembly, and the arrangement flexibility and compactness of the power assembly can be improved, thereby reducing the design difficulty of the transmission assembly while ensuring space utilization and transmission stability. If the first rotating shaft uses the transmission shaft of the power assembly, the outer periphery of the first rotating shaft needs to be arranged with gears and other transmission members, thereby increasing the space for setting the first rotating shaft, increasing the distance between the first rotating shaft and the fixed frame and the edge of the swing arm, and by making the first rotating shaft independent of the power assembly, the space required for the arrangement of the first rotating shaft can be reduced, and the distance between the first rotating shaft and the fixed frame and / or the edge of the swing arm can be reduced, thereby improving the flexibility of the first rotating shaft arrangement, and when the first rotating shaft is arranged at the edge of the fixed member and the swing arm, it is more conducive to the relative rotation of the swing arm and the fixed frame, reducing the risk of interference, and facilitating the internal arrangement of the cleaning assembly.

[0007] In an exemplary embodiment of the present application, the power assembly includes a driving member, a first transmission assembly and a second transmission assembly. The first transmission assembly drives the swing arm and the fixing frame to rotate relative to each other under the drive of the driving member; the second transmission assembly drives the cleaning member to rotate under the drive of the driving member.

[0008] The driving member drives the first transmission assembly to drive the swing arm and the fixed frame to rotate relative to each other, and the driving member drives the second transmission assembly to drive the cleaning member to rotate. The two functions of swing arm rotation and cleaning member rotation are realized by one driving member, thereby improving the utilization rate of the driving member, reducing the number of driving members set, and reducing costs; saving space for the cleaning component, facilitating the internal structure design of the cleaning component, and being conducive to the miniaturization and integration of the cleaning component and cleaning equipment, thereby helping to reduce cleaning blind spots.

[0009] In an exemplary embodiment of the present application, the driving member includes a rotating output shaft, which rotates along a first clockwise direction in a normal cleaning mode and rotates along a second clockwise direction in a special cleaning mode; when the rotation direction of the rotating output shaft changes from the first clockwise direction to the second clockwise direction, the cleaning component switches from the normal cleaning mode to the special cleaning mode; when the rotation direction of the rotating output shaft changes from the second clockwise direction to the first clockwise direction, the cleaning component switches from the special cleaning mode to the normal cleaning mode.

[0010] The cleaning mode of the cleaning component is changed by changing the rotation direction of the rotating output shaft, which is convenient for control and implementation. The switching between the conventional cleaning mode and the special cleaning mode is stable, controllable and convenient.

[0011] In an exemplary embodiment of the present application, the cleaning member rotates in the same clockwise direction in the special cleaning mode and in the normal cleaning mode.

[0012] Changing the rotation direction of the cleaning part will cause the cleaned dust, particles, etc. to contaminate the cleaning surface again, and it is also easy to cause dust and other problems. On the other hand, it will not be possible to drive dust and other pollutants to the preset area of ​​the cleaning component, resulting in the dirt not being cleaned. The cleaning part keeps the same clockwise rotation to facilitate the cleaning of dust, particles and other garbage. The cleaning of the cleaning part in the normal cleaning mode and the special cleaning mode is consistent, which is conducive to the cleaning part cleaning dust, particles and other garbage and being sucked into the cleaning equipment for temporary storage.

[0013] In an exemplary embodiment of the present application, a first limiting portion is provided on the fixing frame; a second limiting portion is provided on the swing arm; the first limiting portion cooperates with the second limiting portion to limit the movement of the swing arm between the stowed position and the extended position.

[0014] The first limiting portion and the second limiting portion cooperate to limit the swing position of the swing arm, thereby preventing the swing arm and the fixing frame from excessively rotating under the action of the driving member or the second elastic member.

[0015] In an exemplary embodiment of the present application, the second limiting portion is a limiting groove, the first limiting portion is a limiting block inserted into the limiting groove, and when the swing arm is in the retracted position and the extended position, the limiting block moves to the closed ends of the limiting groove respectively.

[0016] The cooperation between the limiting groove and the limiting block is stable and reliable, the implementation method is simple, the cost is low, and the cost of the cleaning equipment is reduced.

[0017] In an exemplary embodiment of the present application, the limiting block is an arc-shaped block, the center of which is on the axis of the first rotating shaft; there is a gap between the limiting block and the first rotating shaft; and the limiting groove is an arc-shaped groove.

[0018] The arc-shaped limit block can increase the contact area between the limit block and the arc-shaped limit groove, thereby improving the stability of the limit, reducing the probability of damage to the limit block and the limit groove, and extending the service life. The swing arm rotates around the first rotating shaft, and the center of the arc block is on the axis of the first rotating shaft, which can ensure that the edge of the arc block abuts against the edge of the arc groove, reducing the pressure between the arc block and the arc groove. There is a gap between the limit block and the first rotating shaft, which can avoid wear between the limit block and the first rotating shaft during rotation. At the same time, by bringing the limit block close to the first rotating shaft, the volume of the limit groove can be reduced, the integration of the cleaning component can be improved, and the volume of the cleaning component can be reduced.

[0019] In an exemplary embodiment of the present application, an insertion portion is provided on the fixed frame, and a slot adapted to the insertion portion is provided on the swing arm, and the insertion portion is inserted into the slot; wherein the first rotation axis is provided at the insertion portion, and the axis of the first rotation axis coincides with the axis of the insertion portion.

[0020] When the swing arm and the fixing frame shake relative to each other, a shear force will be generated on the first rotating shaft. Due to the volume limitation of the cleaning component, the outer diameter of the first rotating shaft is limited, and the shear force that can be borne is limited. By providing the insertion part and the slot, the swing of the swing arm and the fixing frame in the direction perpendicular to the axis of the first rotating shaft is limited, which effectively reduces the shear force on the first rotating shaft, reduces the risk of radial damage to the first rotating shaft, increases the service life of the first rotating shaft, and improves the durability of the cleaning component and the cleaning equipment.

[0021] In an exemplary embodiment of the present application, the cross-section of the insertion portion along the radial direction of the insertion portion is circular, and the slot is a circular slot; or, the slot is an arc-shaped slot, and the angle of the slot is greater than 180°.

[0022] The insertion part with a circular cross-section and the circular or arc-shaped slot can rotate relative to each other, and the slot can provide support for the radial direction of the insertion part, thereby effectively protecting the first rotation axis.

[0023] In an exemplary embodiment of the present application, the output end of the first transmission assembly includes a friction wheel, and the wall surface of the fixed frame is provided with a contact surface. When the friction wheel abuts against the contact surface, there is a force between the friction wheel and the contact surface, so that the friction wheel rolls along the contact surface.

[0024] When the friction wheel rotates, there is a force between the friction wheel and the contact surface, so that the friction wheel can roll along the contact surface, thereby driving the swing arm and the fixed frame to rotate relative to each other around the first rotation axis, so as to realize the switching of the swing arm between the extended position and the retracted position. The first rotation axis is not coaxial with the driving mechanism of the friction wheel, and the first rotation axis can be set at the edge of the fixed frame and / or the swing arm to avoid the fixed frame interfering with the rotation position of the swing arm and reduce the cleaning blind area of ​​the cleaning member.

[0025] In an exemplary embodiment of the present application, when the swing arm is in the retracted position and the extended position, the friction wheel does not abut against the engaging surface.

[0026] When the swing arm is maintained in the stowed position or the extended position, the friction wheel always keeps rotating. By not abutting the engaging surface when the swing arm is in the stowed position and the extended position, friction between the swing arm and the engaging surface is avoided when the swing arm is in the extended position and the stowed position, thereby reducing the wear of the friction wheel and the engaging surface, extending the service life of the friction wheel and the engaging surface, and improving the durability of the cleaning equipment.

[0027] In an exemplary embodiment of the present application, the cleaning component includes a second elastic member, one end of the second elastic member is arranged on the swing arm, and the other end is arranged on the fixed frame; wherein, when the swing arm is in the retracted position, the second elastic member applies a force to the swing arm with a tendency to rotate along a third clockwise direction, so that the friction wheel is separated from the engaging surface, and the third clockwise direction is the rotation direction of the swing arm from the extended position to the retracted position; when the swing arm is in the extended position, the second elastic member applies a force to the swing arm with a tendency to rotate along a fourth clockwise direction, so that the friction wheel is separated from the engaging surface, and the fourth clockwise direction is the rotation direction of the swing arm from the retracted position to the extended position.

[0028] When the cleaning component moves from the stowed position to the extended position or from the extended position to the stowed position, the force between the friction wheel and the engaging surface causes the friction wheel to roll along the engaging surface. When the friction wheel moves to the end of the engaging surface, the friction wheel partially contacts the engaging surface. The force between the friction wheel and the engaging surface is not enough to completely separate the friction wheel from the engaging surface, that is, there is always a certain force between the friction wheel and the end of the engaging surface, which will cause problems such as vibration of the swing arm, wear of the friction wheel, and wear of the engaging surface. The force applied to the swing arm by the second elastic member allows the friction wheel to completely separate from the engaging surface, thereby reducing the vibration of the swing arm, avoiding the wear of the friction wheel and the engaging surface, and extending the service life of the friction wheel and the engaging surface. At the same time, the second elastic member applies a continuous force to the swing arm to reduce the shaking of the swing arm during the cleaning process of the cleaning member and avoid the swing arm from being stowed or extended. During the cleaning process of the cleaning member, even if the cleaning component is squeezed and bumped against the wall, causing the swing arm to rotate toward the stowed position, under the action of the second elastic member, the cleaning component will return to the extended position in time.

[0029] In an exemplary embodiment of the present application, when the swing arm switches between the stowed position and the extended position, a movement path of a line of action of a force applied by the second elastic member to the swing arm passes through an axis of the first rotating shaft.

[0030] The second elastic member can be an elastic member such as a spring or a pull rope. After the line of action of the force applied to the swing arm by the second elastic member passes through the axis of rotation between the swing arm and the fixed frame, the torque applied to the swing arm by the second elastic member will change in direction, thereby causing the torque applied to the swing arm by the second elastic member to change from a resistance torque of the swing arm's rotation to a power torque, thereby effectively ensuring that the friction wheel can separate from the engaging surface when the friction wheel moves to the edge of the engaging surface.

[0031] In an exemplary embodiment of the present application, the engaging surface includes a first engaging surface and a second engaging surface, which are projected along the axial direction of the friction wheel, wherein the first end of the projection of the first engaging surface exceeds the first end of the projection of the second engaging surface, and the second end of the projection of the second engaging surface exceeds the second end of the projection of the first engaging surface, and the first end and the second end are opposite ends; the first transmission assembly includes an outward swing transmission assembly, and the outward swing transmission assembly drives the friction wheel to move along the axial direction of the friction wheel so that the friction wheel abuts against the first engaging surface and the second engaging surface respectively.

[0032] Two engaging surfaces, a first engaging surface and a second engaging surface, are arranged along the axial direction of the friction wheel. The friction wheel moves along the axial direction to respectively abut against the first engaging surface and the second engaging surface, and then the position switching of the swing arm is completed by rotating the friction wheel in different clockwise directions. The first end of the first engaging surface exceeds the first end of the second engaging surface, and the second end of the second engaging surface exceeds the second end of the second engaging surface. The first end and the second end are respectively two opposite ends of the engaging surfaces. When the swing arm is kept in the extended position or the retracted position, the friction wheel is located at the first end of the second engaging surface or the second end of the first engaging surface, that is, the friction wheel does not abut against the second engaging surface and the first engaging surface; when the position switching is required, the friction wheel is controlled to move along the axial direction, so that the friction wheel moves from the first end of the second engaging surface to the abutment position with the first engaging surface or from the second end of the first engaging surface to the abutment position with the second engaging surface, and then the friction wheel moves relative to the first engaging surface or the second engaging surface to drive the swing arm to move.

[0033] In an exemplary embodiment of the present application, the outer swing transmission assembly includes a wheel shaft, a first stopper and a second stopper. The wheel shaft is provided with a spiral tooth groove along the axial direction of the wheel shaft, and the friction wheel is provided with teeth that cooperate with the tooth groove; the first stopper is provided in the tooth groove and / or outside the tooth groove; the second stopper is provided in the tooth groove and / or outside the tooth groove; wherein the teeth move along the tooth groove so that the friction wheel moves axially along the wheel shaft; the first stopper and the second stopper limit the travel of the friction wheel along the axial movement of the wheel shaft.

[0034] The length of the tooth groove along the axial direction of the wheel shaft is positively correlated with the required stroke of the friction wheel. The tooth groove is arranged on the wheel shaft, and the axial height of the friction wheel can be selected to be smaller, thereby reducing the space occupied by the friction wheel, effectively reducing the volume of the cleaning component, and facilitating the internal space layout of the cleaning component. The teeth cooperate with the tooth groove, so that the friction wheel and the wheel shaft rotate relative to each other, and then the friction wheel moves along the axial direction of the friction wheel, and the relative position of the friction wheel and the first engaging surface and the second engaging surface is adjusted, so that the friction wheel moves between the first engaging surface and the second engaging surface. When the friction wheel moves to the end of the wheel shaft and is restricted by the first stopper or the second stopper, the rotation of the wheel shaft drives the friction wheel to rotate synchronously, and the force between the friction wheel and the first engaging surface or the second engaging surface causes the friction wheel to roll along the first engaging surface or the second engaging surface, driving the swing arm and the fixed frame to move relative to each other until the swing arm is switched between the retracted position and the extended position.

[0035] In an exemplary embodiment of the present application, the first stop portion and the second stop portion are disposed at both ends of the tooth groove, and the first stop portion and the second stop portion limit the movement of the tooth along the tooth groove, thereby limiting the axial movement of the friction wheel along the wheel axle.

[0036] The first stopper and the second stopper are arranged at both ends of the tooth groove to block the tooth groove, thereby improving the relative rotation between the friction wheel and the wheel axle when the friction wheel reaches the limit position, and ensuring the synchronous rotation of the friction wheel and the wheel axle.

[0037] In an exemplary embodiment of the present application, the fixing frame is provided with a shaft mounting portion and a first mounting member, the first rotating shaft passes through the shaft mounting portion, the first mounting member abuts against the shaft mounting portion, and one end of the second elastic member is connected to the first mounting member.

[0038] Due to the volume limitation of the cleaning assembly, the outer diameter of the first mounting member used to mount the second elastic member is limited, which makes it easy for the connection between the first mounting member and the fixing frame or the first mounting member body to be damaged. The shaft mounting portion is in contact with the first mounting member, so that the shaft mounting portion supports the first mounting member, thereby improving the bearing capacity of the first mounting member, reducing the risk of damage to the connection between the first mounting member and the fixing frame or the first mounting member body, and improving the durability of the first mounting member.

[0039] In an exemplary embodiment of the present application, the first mounting member includes an insert rod and an insert portion, the insert rod is inserted into the insert portion; the insert portion is abutted against the shaft mounting portion, and the second elastic member is mounted on the insert rod.

[0040] The insertion of the insertion rod and the insertion portion facilitates the installation of the insertion rod and the second elastic member, and facilitates the assembly of the cleaning component.

[0041] In an exemplary embodiment of the present application, a first mounting member is provided on the fixed frame, and the first mounting member is provided between the first rotating shaft and the mating surface; one end of the second elastic member is connected to the first mounting member; a second mounting member is provided on the swing arm, and the second mounting member is provided between the first rotating shaft and the connecting end of the cleaning member, and the other end of the second elastic member is connected to the second mounting member.

[0042] The two ends of the second elastic member are respectively mounted on the first mounting member and the second mounting member, which effectively ensures that the second elastic member can function and that the friction wheel can detach from the engaging surface when it moves from the middle of the engaging surface to the edges of both ends of the engaging surface.

[0043] In an exemplary embodiment of the present application, the first transmission assembly includes a first intermediate transmission assembly, an input end of the first intermediate transmission assembly is connected to the driving member, an output end of the first intermediate transmission assembly is connected to the wheel axle, and the first transmission assembly enables the driving member to drive the wheel axle to rotate.

[0044] The first transmission assembly connects the driving member and the wheel axle, so that the driving member drives the wheel axle to rotate, thereby driving the friction wheel to move and cause the swing arm to swing, thereby completing the switching of the swing arm position and the change of the cleaning mode.

[0045] In an exemplary embodiment of the present application, the driving member includes a rotating output shaft and a driving output gear, and the driving output gear is fixed to the rotating output shaft; an outer swing output gear is arranged on the wheel axle; the first intermediate transmission assembly includes a plurality of first gears arranged in sequence along the transmission direction, and adjacent first gears are meshed with each other and / or adjacent first gears are fixed with each other; wherein the first gear at the input end of the first intermediate transmission assembly is meshed with the driving output gear; and the first gear at the output end of the first transmission assembly is meshed with the outer swing output gear.

[0046] The first transmission assembly completes the transmission by directly meshing adjacent first gears or coaxially fixing adjacent first gears, transmitting the torque output by the rotating output shaft through the driving output gear to the wheel axle, thereby driving the friction wheel to move axially and rotate circumferentially.

[0047] The driving member includes a motor, which is arranged on the upper side of the upper shell of the swing arm; the connecting ends of the friction wheel and the cleaning member are respectively located at the two ends of the length direction of the swing arm, and the motor is arranged between the connecting ends of the friction wheel and the cleaning member; when the swing arm is in the extended position, the motor is located on the lower side of the cleaning device body.

[0048] The motor is arranged on the upper side of the upper shell of the swing arm, which can make full use of the space of the upper shell and facilitate the arrangement of the cleaning components. The connection end of the cleaning member is where the swing arm connects to the cleaning member, and the connection ends of the friction wheel and the cleaning member are arranged at both ends of the length direction of the swing arm. When the swing arm reaches the extended position, the cleaning member can be further away from the main body of the cleaning component to increase the cleaning range of the cleaning member.

[0049] In an exemplary embodiment of the present application, the first rotating shaft is located between the friction wheel and the connecting end of the cleaning member; the first rotating shaft and the motor are arranged along the width direction of the swing arm.

[0050] The width direction of the swing arm is perpendicular to the length direction of the swing arm and to the height direction of the swing arm. The line connecting the axis of the first rotating shaft and the axis of the output shaft of the motor is parallel or substantially parallel to the width direction of the swing arm, making full use of the width space of the swing arm. The first rotating shaft can be close to the edge of the swing arm and / or the fixed frame, making it easier for the swing arm and the fixed frame to rotate relative to each other.

[0051] In an exemplary embodiment of the present application, the fixing frame includes a top shell and a side shell. The top shell is located above the upper shell of the swing arm, and a clearance space for evading the motor is formed near the motor side, and the friction wheel is located below the top shell; the side shell is located on one side of the top shell and extends toward the swing arm, and the meeting surface is arranged on the wall surface of the side shell facing the friction wheel.

[0052] The avoidance space can prevent the motor from interfering with the fixed frame; the friction wheel is located below the top shell, and the top shell protects the friction wheel to reduce the risk of the friction wheel bumping. The friction wheel will rotate during the use of the cleaning component. The friction wheel is protected by the top shell to reduce the risk of debris entering the friction wheel and reduce the situation where debris causes the friction wheel to be restricted in movement. On the one hand, the side shell can protect the friction wheel, and on the other hand, the contact surface on the side shell abuts against the friction wheel, so that the friction wheel rolls along the contact surface, thereby driving the swing arm and the fixed frame to rotate relative to each other.

[0053] In an exemplary embodiment of the present application, a first limiting portion is provided on the fixed frame, and the first limiting portion is provided on the side of the first rotating shaft close to the friction wheel; a second limiting portion is provided on the swing arm, and the second limiting portion is provided on the side of the first rotating shaft away from the cleaning member; the first limiting portion cooperates with the second limiting portion to limit the movement of the swing arm between the retracted position and the extended position.

[0054] The internal accommodating cavity of the swing arm is used to install some components of the power assembly. By arranging the first limiting portion and the second limiting portion on the side of the first rotating shaft close to the friction wheel and away from the cleaning component, the space in the connection area between the swing arm and the fixed frame can be fully utilized without occupying the internal space of the swing arm, thereby facilitating the installation of some components of the power assembly, reducing the volume of the swing arm, and reducing the volume of the cleaning assembly.

[0055] In an exemplary embodiment of the present application, the first limiting portion is located at the lower portion of the fixing frame, and the second limiting portion is located at the upper portion of the swing arm.

[0056] The second limiting portion can be located at the upper part of the upper shell of the swing arm, and the first limiting portion and the second limiting portion can be arranged using the external space of the swing arm to avoid encroaching on the internal space of the swing arm, thereby facilitating the installation of some components of the power assembly in the accommodating cavity of the swing arm, thereby improving the integration of the cleaning assembly and reducing the volume of the cleaning assembly.

[0057] In an exemplary embodiment of the present application, the driving member includes a rotating output shaft and a driving output gear, and the driving output gear is fixed to the rotating output shaft; the second transmission assembly includes a first rotating transmission assembly and a second rotating transmission assembly, the input end of the first rotating transmission assembly is connected to the driving output gear, and the output end of the second rotating transmission assembly is connected to the cleaning member; wherein, the second rotating transmission assembly includes two input ends, the rotation direction of the input end of one of the second rotating transmission assemblies is the same clockwise direction as the rotation direction of the output end of the second rotating transmission assembly, and the rotation direction of the other input end is opposite to the rotation direction of the output end of the second rotating transmission assembly in the clockwise direction; the driving output gear changes the rotation direction so that the output end of the first rotating transmission assembly can be selectively connected to the two input ends of the second rotating transmission assembly.

[0058] During the use of the cleaning component, the rotational output shaft of the driving member needs to change the rotational direction to drive the swing arm to move between the retracted position and the extended position, but the cleaning member needs to maintain a rotational direction to prevent dust and the like from contaminating the cleaning surface after cleaning, so as to facilitate the cleaning of dirt. The rotational direction of the driving output gear is consistent with the rotational direction of the rotating output shaft. When the driving output gear rotates in different clockwise directions, the output end of the first rotating transmission component is respectively connected to the two input ends of the second rotating transmission component, thereby keeping the rotational direction of the cleaning member unchanged and ensuring the cleaning effect.

[0059] In an exemplary embodiment of the present application, the output end of the first rotating transmission component is the second gear; the two input ends of the second rotating transmission component are respectively the third gear and the fourth gear; the second gear is coaxially arranged between the third gear and the fourth gear, and the second gear and the third gear, and the second gear and the fourth gear are respectively connected through one-way bearings, and the driving output gear changes the rotation direction so that the second gear can selectively drive the third gear or the fourth gear to rotate.

[0060] The second gear and the third gear, and the second gear and the fourth gear are respectively connected through a one-way bearing, so that when the second gear rotates in different clockwise directions, the second gear drives the third gear and the fourth gear to rotate respectively.

[0061] A cleaning device, characterized in that it comprises a device body and any one of the cleaning components described above, wherein a fixing frame of the cleaning component is installed on the device body.

[0062] In combination with the prior art, the beneficial effects of the present invention are:

[0063] The cleaning component of the present application includes a fixed frame and a swing arm that can rotate relative to each other. The fixed frame and the swing arm are driven by a power component to rotate relative to each other, so that the cleaning range of the cleaning member changes. When cleaning an ordinary surface to be cleaned, the cleaning component is in a regular cleaning mode and the swing arm is in a retracted position; when cleaning special areas such as corners, the cleaning component is in a special cleaning mode and the swing arm is in an extended position, thereby cleaning areas that the cleaning member cannot cover in the regular cleaning mode, increasing the cleaning range, reducing blind spots, improving cleaning effects, and effectively improving user satisfaction.

[0064] When a power assembly is used to realize the swing of the swing arm and the self-rotation of the cleaning member, the transmission system involved in the power assembly is relatively complex, and the internal space of the swing arm is very limited. The arrangement flexibility and compactness of the power assembly are very critical to space saving and transmission stability. By making the first rotating shaft independent of the power assembly, the arrangement position of the first rotating shaft can be avoided from affecting the arrangement of the power assembly, and the arrangement flexibility and compactness of the power assembly can be improved, thereby reducing the design difficulty of the transmission assembly while ensuring space utilization and transmission stability. If the first rotating shaft uses the transmission shaft of the power assembly, the outer periphery of the first rotating shaft needs to be arranged with gears and other transmission members, thereby increasing the space for setting the first rotating shaft, increasing the distance between the first rotating shaft and the fixed frame and the edge of the swing arm, and by making the first rotating shaft independent of the power assembly, the space required for the arrangement of the first rotating shaft can be reduced, and the distance between the first rotating shaft and the fixed frame and / or the edge of the swing arm can be reduced, thereby improving the flexibility of the first rotating shaft arrangement, and when the first rotating shaft is arranged at the edge of the fixed member and the swing arm, it is more conducive to the relative rotation of the swing arm and the fixed frame, reducing the risk of interference, and facilitating the internal arrangement of the cleaning assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without paying creative work.

[0066] Figure 1 is a schematic diagram of an exemplary cleaning component of the present invention;

[0067] Figure 2 It is a schematic diagram of another angle of an exemplary cleaning component of the present invention;

[0068] Figure 3 It is a schematic diagram of a power assembly of a cleaning assembly of the present invention;

[0069] Figure 4It is a schematic diagram of an exemplary first transmission assembly and part of the driving member of the present invention;

[0070] Figure 5 is a cross-sectional schematic diagram of an exemplary friction wheel and an outswing transmission assembly of the present invention;

[0071] Figure 6 This is a schematic diagram of an exemplary wheel axle and some structures of the present invention;

[0072] Figure 7 It is a partial three-dimensional schematic diagram of an exemplary fixing frame of the present invention;

[0073] Figure 8 It is a schematic diagram of a partial structure of an exemplary cleaning component of the present invention;

[0074] Fig. 9 It is a schematic diagram of an exemplary second transmission assembly and a part of the driving member of the present invention;

[0075] Fig.10 It is a schematic diagram of another angle of an exemplary second transmission assembly and a part of the driving member of the present invention;

[0076] Fig.11 is a schematic diagram of an exemplary driving member of the present invention;

[0077] Fig.12 It is a schematic diagram of an exemplary swing arm of the present invention in a stowed position;

[0078] Fig.13 It is a schematic diagram of an exemplary swing arm of the present invention when it moves from a stowed position to an extended position;

[0079] Fig.14 A top view of an exemplary swing arm of the present invention when it is close to a fully extended position;

[0080] Fig.15 It is a schematic diagram of the relative positions of the friction wheel and the fixing frame when an exemplary swing arm of the present invention is close to a fully extended position;

[0081] Fig.16 It is a schematic diagram of the relative positions of the friction wheel and the fixing frame when an exemplary swing arm of the present invention is in a fully extended position;

[0082] Fig.17 It is a schematic diagram of the relative positions of the friction wheel and the fixing frame when an exemplary swing arm of the present invention moves from an extended position to a retracted position;

[0083] Fig.18 A top view of an exemplary swing arm of the present invention when it is close to a fully retracted position;

[0084] Fig.19 It is a schematic diagram of the relative positions of the friction wheel and the fixing frame when an exemplary swing arm of the present invention is close to a fully retracted position;

[0085] Fig. 20 A three-dimensional diagram of a partial structure of an exemplary cleaning component of the present invention;

[0086] Fig.21 It is a schematic diagram of a partial structure of an exemplary fixing frame of the present invention;

[0087] Fig. 22 It is a schematic diagram of a partial structure of an exemplary fixing frame of the present invention from another angle;

[0088] Fig.23 It is a three-dimensional schematic diagram of the partial structure of an exemplary swing arm of the present invention.

[0089] Component number description:

[0090] 100, fixed frame; 110, first rotating shaft; 120, meeting surface; 121, first meeting surface; 122, second meeting surface; 130, first limiting portion; 140, inserting portion; 150, rotating shaft mounting portion; 160, first mounting member; 161, inserting rod; 162, plug-in portion; 170, top shell; 180, side shell;

[0091] 200, swing arm; 210, second limiting portion; 220, elastic member mounting portion; 221, limiting protrusion; 230, slot; 240, upper housing; 250, lower housing; 260, second mounting member;

[0092] 300, power assembly; 310, driving member; 311, rotating output shaft; 312, driving output gear; 313, motor;

[0093] 320, first transmission assembly; 321, friction wheel; 3211, retaining ring; 3212, limiting ring; 322, outer swing transmission assembly; 3221, wheel shaft; 3222, first stopper; 3223, second stopper; 3224, first elastic member; 3225, outer swing output gear; 3226, cover plate; 323, first intermediate transmission assembly; 3231, first gear;

[0094] 330, second transmission assembly; 331, first rotation transmission assembly; 3311, second gear; 3312, first rotation transmission gear; 332, second rotation transmission assembly; 3321, third gear; 3322, fourth gear; 3323, second rotation transmission gear; 3324, fifth gear; 3325, sixth gear;

[0095] 400. A second elastic member. DETAILED DESCRIPTION

[0096] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the features in the following embodiments and embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific embodiments, rather than to limit the scope of protection of the present invention. The test methods for which specific conditions are not indicated in the following examples are usually carried out under conventional conditions or according to the conditions recommended by the manufacturers.

[0097] When numerical ranges are given in the embodiments, it should be understood that unless otherwise specified in the present invention, both endpoints of each numerical range and any value between the two endpoints can be selected. Unless otherwise defined, all technical and scientific terms used in the present invention are familiar to those skilled in the art and the description of the present invention, and any method, device and material of the prior art similar or equivalent to the method, device and material in the embodiments of the present invention can also be used to implement the present invention.

[0098] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for the convenience of description and are not intended to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as within the scope of implementation of the present invention without substantially changing the technical content.

[0099] The present application provides a cleaning device, which may be a mopping robot, a sweeping and mopping machine, or other cleaning robots that meet the requirements.

[0100] The cleaning equipment includes but is not limited to: an equipment body, a cleaning system, and a driving system. The above-mentioned systems cooperate with each other so that the cleaning equipment can move autonomously to achieve the cleaning function. The functional elements constituting the above-mentioned systems in the cleaning equipment are integrated in the equipment body. It is understandable that the cleaning equipment 1 can be a self-moving cleaning equipment, which is a device that can automatically perform cleaning operations in a certain area to be cleaned without user operation. Of course, the cleaning equipment can also be a device that requires user operation, such as a floor scrubber, a sweeper and mop machine, etc.

[0101] The cleaning system of the cleaning device may include a dry cleaning system, the cleaning system includes the aforementioned cleaning element, and the cleaning element can interfere with the surface to be cleaned to clean the surface to be cleaned. For example, the cleaning element may include a roller brush module, and the cleaning system includes a dust box and a dust suction fan. The roller brush that interferes with the ground brings the dust, particles and other garbage on the ground to the front of the dust suction port between the roller brush and the dust box, and then is sucked into the dust box by the suction gas generated by the dust suction fan and passing through the dust box.

[0102] The cleaning system may include a side brush module connected to the device body and used to move debris and other debris outside the roller brush area to the roller brush area of ​​the cleaning system. For example, the cleaning device may be a sweeping robot.

[0103] The cleaning system may include a wet cleaning system, which includes the aforementioned cleaning element, and the cleaning element can interfere with the surface to be cleaned to achieve wet cleaning of the surface to be cleaned. For example, the cleaning device may be a mopping robot.

[0104] When existing cleaning equipment cleans the surface to be cleaned, conventional wide and flat areas can be cleaned relatively thoroughly. However, when encountering corner areas such as corners, the cleaning equipment itself has a certain volume, so the cleaning equipment cannot enter the corner area, and its cleaning components cannot clean the corner area.

[0105] In view of this, the present invention provides a cleaning component and a cleaning device. The cleaning component can be a roller brush module, a side brush module, or other cleaning components of the cleaning system. The following is a detailed description taking the cleaning component as a side brush module as an example.

[0106] The swing arm 200 of the cleaning component has a stowed position and an extended position. When cleaning a wide and flat area, the cleaning component is in a conventional cleaning mode, and the swing arm 200 is in the stowed position to clean the surface to be cleaned; when encountering areas such as corners, the cleaning component switches to a special cleaning mode, and the swing arm 200 swings to the extended position to adjust the cleaning range of the cleaning component. The cleaning component can extend into the corner area to clean the corner or areas close to the corner, thereby expanding the cleaning area of ​​the cleaning equipment, improving the comprehensiveness of the cleaning range, and improving the user experience.

[0107] See also Figures 1 to 23 In a first aspect, the present invention provides a cleaning assembly, including a fixed frame 100, a swing arm 200 and a power assembly 300.

[0108] The fixing frame 100 is configured to be connected to the main body of the cleaning device. A rotatable cleaning member is mounted on the swing arm 200, and the swing arm 200 is rotatably connected to the fixing frame 100.

[0109] See also Figure 1 and Figure 2 In one embodiment, a first rotating shaft 110 is provided on the fixed frame 100. The swing arm 200 is rotatably connected to the fixed frame 100 through the first rotating shaft 110. For example, one end of the first rotating shaft 110 is fixed to the fixed frame 100, and the other end is passed through the swing arm 200, and the swing arm 200 can rotate relative to the first rotating shaft 110, so that the swing arm 200 rotates relative to the fixed frame 100. Alternatively, one end of the first rotating shaft 110 is passed through the fixed frame 100, and the other end is fixed to the swing arm 200, and the first rotating shaft 110 can rotate relative to the fixed frame 100, so that the swing arm 200 rotates relative to the fixed frame 100; or, one end of the first rotating shaft 110 is passed through the fixed frame 100, and the other end is passed through the swing arm 200, and the first rotating shaft 110 can rotate relative to both the fixed frame 100 and the swing arm 200, so that the swing arm 200 rotates relative to the fixed frame 100.

[0110] Of course, as some optional methods, the first rotating shaft 110 can also rotate with the fixing frame 100 and / or the swing arm 200 in other ways, so that the swing arm 200 can rotate relative to the fixing frame 100.

[0111] The power assembly 300 drives the cleaning member to rotate, and can drive the swing arm 200 and the fixing frame 100 to rotate relative to each other, so as to drive the swing arm 200 to move between the retracted position and the extended position.

[0112] The cleaning assembly has a normal cleaning mode and a special cleaning mode. In the normal cleaning mode, the swing arm 200 is located at the retracted position. In the special cleaning mode, the swing arm 200 is located at the extended position.

[0113] The cleaning component of the present application includes a fixed frame 100 and a swing arm 200 that can rotate relative to each other. The fixed frame 100 and the swing arm 200 are driven by the power component 300 to rotate relative to each other, so that the cleaning range of the cleaning member changes. When cleaning an ordinary surface to be cleaned, the cleaning component is in a regular cleaning mode, and the swing arm 200 is in a retracted position; when cleaning special areas such as corners, the cleaning component is in a special cleaning mode, and the swing arm 200 is in an extended position, thereby cleaning areas that the cleaning member cannot cover in the regular cleaning mode, increasing the cleaning range, reducing cleaning blind spots, improving the cleaning effect, and effectively improving user satisfaction.

[0114] See also Figure 3In one embodiment, the power assembly 300 includes a driving member 310, a first transmission assembly 320, and a second transmission assembly 330. The first transmission assembly 320 drives the swing arm 200 and the fixing frame 100 to rotate relative to each other under the drive of the driving member 310; the second transmission assembly 330 drives the cleaning member to rotate under the drive of the driving member 310.

[0115] One driving member 310 realizes two functions of rotating the swing arm 200 and rotating the cleaning member, thereby improving the utilization rate of the driving member 310, reducing the number of driving members 310, and reducing costs; saving space for the cleaning component, facilitating the internal structure design of the cleaning component, and being conducive to the miniaturization and integration of the cleaning component and cleaning equipment, thereby helping to reduce cleaning blind spots.

[0116] See also Fig.11 Exemplarily, the driving member 310 may be a motor 313, and the first transmission assembly 320 and the second transmission assembly 330 may be transmission assemblies for transmitting the output torque of the motor 313, such as a gear transmission assembly, a worm transmission assembly, a belt transmission assembly, a friction transmission assembly, etc., and may also be a combination of the above transmission assemblies.

[0117] See also Fig.11 In one embodiment, the driving member 310 includes a rotating output shaft 311, and the rotating output shaft 311 can be an output shaft of the motor 313, or a shaft connected to the output shaft of the motor 313. For example, the rotating output shaft 311 is connected to the output shaft of the motor 313 through a coupling. In the conventional cleaning mode, the rotating output shaft 311 rotates along a first clockwise direction, and in the special cleaning mode, the rotating output shaft 311 rotates along a second clockwise direction. One of the first clockwise direction and the second clockwise direction is a clockwise direction, and the other is a counterclockwise direction. When the rotating direction of the rotating output shaft 311 changes from the first clockwise direction to the second clockwise direction, the cleaning component switches from the conventional cleaning mode to the special cleaning mode; when the rotating direction of the rotating output shaft 311 changes from the second clockwise direction to the first clockwise direction, the cleaning component switches from the special cleaning mode to the conventional cleaning mode. In other words, by changing the rotation direction of the rotating output shaft 311, the swing arm 200 can be moved between the retracted position and the extended position, and the switching between the normal cleaning mode and the special cleaning mode can be achieved. When the driving member 310 includes a motor 313, the forward and reverse rotation of the motor 313 is simple and controllable, and the operation is stable. By changing the rotation direction of the rotating output shaft 311, the cleaning mode of the cleaning assembly can be changed, which is convenient to control and easy to implement.

[0118] In one embodiment, the cleaning member rotates in the same clockwise direction in the special cleaning mode and in the regular cleaning mode. The cleaning member may be a brush that sweeps away dust, particles, hair and other garbage on the ground. If the cleaning member changes its rotation direction, the cleaned dust, particles and the like will contaminate the cleaning surface again, and dust and the like are prone to occur. The cleaning member of the present application maintains the same clockwise rotation to facilitate cleaning of dust, particles and other garbage. The cleaning of the cleaning member in the regular cleaning mode and the special cleaning mode is consistent, which is beneficial for the cleaning member to clean dust, particles and other garbage and be sucked into the cleaning equipment for temporary storage, thereby improving the cleanliness.

[0119] In some embodiments, the power assembly 300 is disposed on the swing arm 200. Since the transmission mechanism of the power assembly 300 may involve many gears and the transmission connection is relatively complicated, the power assembly 300 is disposed on the swing arm 200 as a whole. When the swing arm 200 and the fixing frame 100 rotate, the power assembly 300 as a whole moves with the swing arm 200. The power assembly 300 as a whole is disposed on the swing arm 200, so that the transmission mechanism as a whole can swing with the swing arm 200, thereby reducing the probability of abnormality of the transmission mechanism during the swing of the swing arm 200. The transmission mechanism of the power assembly 300 includes but is not limited to a first transmission assembly 320 and a second transmission assembly 330.

[0120] Of course, as some optional methods, the power component 300 can also be set on the swing arm 200; it can also be partially set on the swing arm 200 and the other part is set on the fixed frame 100, so that the power component 300 can drive the swing arm 200 to rotate relative to the fixed frame 100.

[0121] In some embodiments, the first rotating shaft 110 is set independently of the power assembly 300. When a motor is used to realize the swing of the swing arm 200 and the self-rotation of the cleaning member, the transmission system involved in the first transmission assembly 320, the second transmission assembly 330 and other transmission mechanisms is relatively complex, and the internal space of the swing arm 200 is very limited. The arrangement flexibility and compactness of the first transmission assembly 320 and the second transmission assembly 330 are very critical to space saving and transmission stability. In the embodiment of this specification, by setting the first rotating shaft 110 independently of the first transmission assembly 320, the second transmission assembly 330 and other components of the power assembly 300, it is possible to avoid the arrangement position of the first rotating shaft 110 from affecting the arrangement of the first transmission assembly 320 and the second transmission assembly 330, thereby improving the arrangement flexibility and compactness of the first transmission assembly 320 and the second transmission assembly 330, thereby reducing the design difficulty of the transmission assembly while ensuring space utilization and transmission stability.

[0122] In some embodiments, the first rotating shaft 110 is arranged closer to the edge of the fixed frame 100 and the edge of the swing arm 200 to avoid occupying the middle space of the swing arm, further improving the flexibility and compactness of the arrangement of the transmission mechanism in the swing arm; at the same time, it can also reduce the interference and restriction of the fixed frame 100 body or other components on the fixed frame 100 on the swing arm 200 when the swing arm 200 swings, thereby ensuring the swing range of the swing arm 200, increasing the cleaning range, and improving the user experience.

[0123] Of course, in some implementations, a gear shaft or a rotation output shaft 311 in the power assembly 300 may also be used as the first rotation shaft 110 .

[0124] See also Fig.15 In one embodiment, the output end of the first transmission component 320 includes a friction wheel 321, and the wall surface of the fixed frame 100 is provided with a contact surface 120. When the friction wheel 321 abuts against the contact surface 120 and the friction wheel 321 rotates, there is a force between the friction wheel 321 and the contact surface 120, so that the friction wheel 321 rolls along the contact surface 120, thereby driving the swing arm 200 and the fixed frame 100 to rotate relative to each other around the first rotating shaft 110, thereby realizing the switching of the swing arm 200 between the extended position and the retracted position.

[0125] See also Fig.15 In one embodiment, the force between the friction wheel 321 and the meeting surface 120 may be a friction force. For example, the friction wheel 321 rubs against the surface of the meeting surface 120, so that the friction wheel 321 rolls along the surface of the meeting surface 120. The outer wall of the friction wheel 321 may include a rough surface after roughening treatment, and the surface of the meeting surface 120 is a rough surface after roughening treatment. The friction resistance between the rough surfaces is greater, which is more conducive to the friction wheel 321 rolling along the surface of the meeting surface 120. The outer wall of the friction wheel 321 may also be a corrugated surface, and the meeting surface 120 may also be a corrugated surface, thereby increasing the friction resistance between the friction wheel 321 and the meeting surface 120, facilitating the friction wheel 321 to roll along the surface of the meeting surface 120, and the swing arm 200 and the fixed frame 100 rotate relative to each other. The outer wall of the friction wheel 321 and the meeting surface 120 may also be other surfaces treated to increase the friction force, and the surface treatment methods of the outer wall of the friction wheel 321 and the meeting surface 120 may be the same or different.

[0126] In order to increase the friction between the friction wheel 321 and the contact surface 120, the outer wall of the friction wheel 321 can be made of rubber material to increase the pressure between the friction wheel 321 and the contact surface 120. Of course, the outer wall of the friction wheel 321 can also be made of other materials such as plastics and metals.

[0127] In another embodiment, there may be pressure between the friction wheel 321 and the mating surface 120. For example, the outer wall of the friction wheel 321 is provided with a plurality of first teeth, and the mating surface 120 is provided with a plurality of second teeth meshing with the first teeth. The first teeth mesh with the second teeth so that the friction wheel 321 rolls along the mating surface 120.

[0128] Of course, as some optional methods, other forces may be applied between the friction wheel 321 and the contact surface 120 so that the friction wheel 321 rolls along the surface of the contact surface 120 when rotating.

[0129] During the cleaning process using the cleaning piece, the swing arm 200 needs to swing for a very short time. Therefore, the friction wheel 321 briefly contacts the mating surface 120, which will not cause damage to the friction surface of the friction wheel 321 and the mating surface 120. However, if after the swing arm 200 is swung into place, the working surface of the friction wheel 321 that contacts the mating surface 120 is still in contact with other components, the working surface of the friction wheel 321 will be damaged, affecting the function of the friction wheel 321 and the swing of the swing arm 200.

[0130] See also Fig.11 and Fig.16 In some embodiments, when the swing arm 200 moves to the stowed position or the extended position, the friction wheel 321 does not abut against the contact surface 120, which can prevent the friction wheel 321 and the contact surface 120 from continuing to interact with each other, thereby improving the problem of wear of the action surface of the friction wheel 321 and the contact surface 120, which in turn affects the swing of the swing arm 200. Therefore, through the above solution, the service life of the friction wheel 321 and the contact surface 120 can be extended, and the stability of the swing of the swing arm 200 can be ensured.

[0131] See also Figure 7 In one embodiment, the engaging surface 120 protrudes from the wall of the fixing frame 100. When the swing arm 200 is kept in the retracted position or the extended position, the friction wheel 321 always keeps rotating, and the engaging surface 120 protrudes from the wall of the fixing frame 100, so that the friction wheel 321 does not abut against the wall when it moves to the two sides of the engaging surface 120, thereby avoiding friction between the swing arm 200 and the wall of the fixing frame 100 when the swing arm 200 is kept in the extended position and the retracted position, reducing the wear of the friction wheel 321 and the wall of the fixing frame 100, extending the service life of the friction wheel 321, and improving the durability of the cleaning device.

[0132] Of course, as some optional methods, the engaging surface 120 is flush with part of the wall surface of the fixing frame 100, and recesses are respectively provided at both ends of the engaging surface 120. The engaging surface 120 protrudes relative to the wall surface at the recess. When the swing arm 200 is maintained in the retracted position or the extended position, the friction wheel 321 is located at the recess and does not contact the recess, thereby reducing the wear of the friction wheel 321.

[0133] See also Figure 7 In one embodiment, the engaging surface 120 includes a first engaging surface 121 and a second engaging surface 122, and the first engaging surface 121 and the second engaging surface 122 are arranged along the axial direction of the friction wheel 321. When the cleaning device is located on the surface to be cleaned, the axial direction of the friction wheel 321 is the up-down direction. The first engaging surface 121 and the second engaging surface 122 are arranged up and down, and the friction wheel 321 moves up and down to contact the first engaging surface 121 and the second engaging surface 122 respectively, and then the position of the swing arm 200 is switched by rotating the friction wheel 321 in different clockwise directions.

[0134] See also Figure 7 , projected along the axial direction of the friction wheel 321, one end of the projection of the first catering surface 121 exceeds one end of the projection of the second catering surface 122, and the other end of the projection of the second catering surface 122 exceeds the other end of the projection of the first catering surface 121; the first transmission assembly 320 includes an outward swing transmission assembly 322, and the outward swing transmission assembly 322 drives the friction wheel 321 to move along the axial direction of the friction wheel 321, so that the friction wheel 321 is respectively in contact with the first catering surface 121 and the second catering surface 122.

[0135] See also Figure 7 The first end of the first catering surface 121 exceeds the first end of the second catering surface 122, and the second end of the second catering surface 122 exceeds the second end of the second catering surface 122. The first end and the second end are respectively the two opposite ends of the catering surface 120. For example, the first end and the second end are respectively the two ends of the catering surface 120 perpendicular to the axial direction of the friction wheel 321. When the swing arm 200 is maintained in the extended position or the retracted position, the friction wheel 321 is located beside the first end of the second catering surface 122 or beside the second end of the first catering surface 121, that is, the friction wheel 321 does not abut against the second catering surface 122 and the first catering surface 121, so as to avoid continuous action between the friction wheel 321 and the first catering surface 121 and the second catering surface 122, resulting in wear of the friction wheel 321 and the catering surface 120.

[0136] For example, Fig.12 As shown, when the swing arm 200 is kept in the retracted position, the friction wheel 321 is located above the second end of the second engaging surface 122 and beside the second end of the first engaging surface 121, and the friction wheel 321 does not abut against the first engaging surface 121 and the second engaging surface 122. Fig.13As shown, the friction wheel 321 is controlled to move downward to the second end of the friction wheel 321 and the second engaging surface 122, the friction wheel 321 abuts against the second engaging surface 122, and the friction wheel 321 rotates so that the friction wheel 321 moves along the surface of the second engaging surface 122 until the friction wheel 321 moves to the first end of the second engaging surface 122 and then disengages from the second engaging surface 122, as shown in FIG. Fig.15 In the state shown, the swing arm 200 is in the extended position. Similarly, when the swing arm 200 needs to move from the extended position to the stowed position, as shown in FIG. Fig.16 As shown, the friction wheel 321 moves upward to abut against the first mating surface 121, and then the friction wheel 321 rolls along the surface of the first mating surface 121, driving the swing arm 200 and the fixed frame 100 to rotate relative to each other until the friction wheel 321 is located above the second end of the second mating surface 122 and beside the second end of the first mating surface 121, and the swing arm 200 moves to the retracted position.

[0137] When the swing arm 200 is in the retracted position, the friction wheel 321 does not abut against the first mating surface 121, and the friction wheel 321 can abut against the second mating surface 122 after moving along the axial direction of the friction wheel 321; when the swing arm 200 is in the extended position, the friction wheel 321 does not abut against the second mating surface 122, and the friction wheel 321 can abut against the first mating surface 121 after moving along the axial direction of the friction wheel 321.

[0138] It should be noted that the first end and the second end are for illustration only, and do not specifically refer to a specific end of the meeting surface 120. For example, the first end may be the left end of the meeting surface 120, or the right end of the meeting surface 120, and the second end is arranged opposite to the first end. Similarly, the positions of the first meeting surface 121 and the second meeting surface 122 along the axial direction of the friction wheel 321 are also for illustration only. For example, when the axial direction of the friction wheel 321 is the vertical direction, the first meeting surface 121 may be located above the second meeting surface 122, or the first meeting surface 121 may be located below the second meeting surface 122.

[0139] See also Figures 4 to 6 In one embodiment, the outer swing transmission assembly 322 includes a wheel axle 3221, and one of the wheel axle 3221 and the friction wheel 321 is provided with a spiral-shaped tooth groove along the axial direction of the wheel axle 3221, and the other is provided with teeth matching the tooth groove, and the teeth can slide in the tooth groove to enable the friction wheel 321 to move along the axial direction of the wheel axle 3221.

[0140] In some embodiments, the friction wheel 321 has a tooth groove extending through the inner wall of the axle 3221 , and the outer periphery of the axle 3221 is provided with teeth. The teeth and the tooth groove cooperate so that when the teeth slide in the tooth groove, the friction wheel 321 moves axially along the axle 3221 .

[0141] See also Figure 5 and Figure 6 In some embodiments, the tooth groove is arranged on the outer periphery of the axle 3221, and the inner wall of the friction wheel 321 penetrating the axle 3221 is provided with teeth, and the teeth and the tooth groove cooperate so that when the teeth slide in the tooth groove, the friction wheel 321 moves along the axial direction of the axle 3221. The length of the tooth groove along the axial direction of the axle 3221 is the same as or positively correlated with the stroke of the friction wheel 321 moving along the axial direction of the axle 3221. The tooth groove is arranged on the axle 3221, and the axial height of the friction wheel 321 can be selected to be smaller, thereby reducing the space occupied by the friction wheel 321 and the axle 3221, effectively reducing the volume of the cleaning component, and facilitating the internal space layout of the cleaning component.

[0142] The outer swing transmission assembly 322 includes a first stopper 3222 and a second stopper 3223, and the first stopper 3222 and the second stopper 3223 limit the axial movement of the friction wheel 321 along the wheel shaft 3221. Since the friction wheel 321 needs to generate a force with the engaging surface 120 during the swinging process of the swing arm 200, the force tends to hinder the friction wheel 321 from rotating along the wheel shaft 3221. The first stopper 3222 and the second stopper 3223 are provided to limit the friction wheel 321. When the friction wheel 321 moves to the first stopper 3222 or the second stopper 3223, the wheel shaft 3221 drives the friction wheel 321 to rotate. At the same time, the hard stop can prevent the force between the friction wheel 321 and the mating surface 120 from causing a speed difference between the friction wheel 321 and the wheel axle 3221, and then causing the friction wheel 321 to move up and down along the wheel axle 3221. Therefore, in the embodiment of this specification, the first stop portion 3222 and the second stop portion 3223 are set to achieve the rotation of the friction wheel 321 by the wheel axle 3221, which can further ensure the stability of the swing of the swing arm 200.

[0143] The first stop portion 3222 can be arranged in the tooth groove, or outside the tooth groove, or partially in the tooth groove and partially outside the tooth groove; the second stop portion 3223 can be arranged in the tooth groove, or outside the tooth groove, or partially in the tooth groove and partially outside the tooth groove; the first stop portion 3222 and the second stop portion 3223 can limit the moving path of the friction wheel 321 on the axle 3221 by limiting the moving path of the teeth along the tooth groove, and can also directly limit the moving path of the friction wheel 321 on the axle 3221 by the position of the friction wheel 321 on the axle 3221.

[0144] See also Figure 5 and Figure 6In one embodiment, a first stop portion 3222 and a second stop portion 3223 are provided on the tooth groove; the first stop portion 3222 is provided at one end of the tooth groove; the second stop portion 3223 is provided at the other end of the tooth groove, so as to limit the axial movement stroke of the friction wheel 321 along the wheel axle 3221 by limiting the stroke of the tooth in the tooth groove.

[0145] For example, the outer periphery of the wheel shaft 3221 is provided with a tooth groove; the first stopper 3222 is provided at one end of the tooth groove; the second stopper 3223 is provided at the other end of the tooth groove; wherein the friction wheel 321 is provided with teeth that cooperate with the tooth groove, and the first stopper 3222 and the second stopper 3223 limit the sliding stroke of the teeth of the friction wheel 321 along the tooth groove, so as to limit the moving stroke of the friction wheel 321 along the axial direction of the wheel shaft 3221. Through the cooperation between the teeth and the tooth groove, the friction wheel 321 and the wheel shaft 3221 are relatively rotated, and then the friction wheel 321 is moved along the axial direction of the wheel shaft 3221, and the relative position of the friction wheel 321 and the first and second contact surfaces 121 and 122 is adjusted, so that the friction wheel 321 moves between the first and second contact surfaces 121 and 122. For example, when the tooth moves to the end of the tooth groove and is restricted by the first stop portion 3222 or the second stop portion 3223, the rotation of the wheel axle 3221 drives the friction wheel 321 to rotate synchronously, so that a force is generated between the friction wheel 321 and the first mating surface 121 or the second mating surface 122, and the friction wheel 321 rolls along the first mating surface 121 or the second mating surface 122, driving the swing arm 200 and the fixed frame 100 to move relative to each other until the swing arm 200 is switched between the retracted position and the extended position.

[0146] In some embodiments, the teeth on the friction wheel 321 can be protrusions extending from the inner wall of the friction wheel 321 toward the axial direction of the friction wheel 321, and the protrusions are inserted into the tooth grooves and move relative to the tooth grooves, thereby realizing the movement of the friction wheel 321 along the axial direction of the wheel axle 3221; in other embodiments, the teeth on the friction wheel 321 can also be internal threads provided on the inner wall and matching the tooth grooves, and the internal threads move relative to the tooth grooves, thereby making the friction wheel 321 move along the axial direction of the wheel axle 3221.

[0147] Of course, as some feasible ways, the friction wheel 321 can also be in the form of other teeth that cooperate with the tooth grooves, so that the friction wheel 321 can achieve axial movement along the wheel shaft 3221 through the cooperation between the teeth and the tooth grooves.

[0148] Exemplarily, the axle 3221 is rotatably disposed on the swing arm 200 , and the axle 3221 may be directly rotatably connected to the swing arm 200 , or may be rotatably connected to the swing arm 200 via a bearing, so as to reduce wear on the axle 3221 and the swing arm 200 .

[0149] See also Figure 5 In one embodiment, a cover plate 3226 is fixed to the end of the wheel axle 3221. The outer diameter of the cover plate 3226 is larger than the outer diameter of the wheel axle 3221. The cover plate 3226 further limits the friction wheel 321 to prevent the friction wheel 321 from separating from the wheel axle 3221 when the wheel axle 3221 and the friction wheel 321 rotate relative to each other.

[0150] See also Figure 6 , the tooth groove is arranged on the outer periphery of the axle 3221, and the first stopper 3222 is arranged on the cover plate 3226 and extends toward the axle 3221 to block one end of the tooth groove. Compared with the arrangement of the first stopper 3222 in the tooth groove of the axle 3221, the arrangement of the first stopper 3222 on the cover plate 3226 is more convenient for processing and reduces manufacturing costs. At the same time, if the first stopper 3222 is arranged in the tooth groove 3221, the friction wheel 321 cannot be screwed into the axle 3221, and thus the assembly of the friction wheel 321 and the axle 3221 cannot be completed. By arranging the first stopper 3222 on the cover plate 3226, the assembly of the friction wheel 321 and the axle 3221 is facilitated.

[0151] The fixing methods of the cover plate 3226 and the axle 3221 include but are not limited to welding connection, bolt connection, and adhesive connection, preferably bolt connection, that is, the bolts penetrate the cover plate 3226 and are threadedly connected to the axle 3221 to fix the cover plate 3226 and the axle 3221.

[0152] See also Figure 4 and Figure 5In one embodiment, the outer swing transmission assembly 322 includes a first elastic member 3224, and the first elastic member 3224 applies a force that reduces the pressure between the friction wheel 321 and the wheel shaft 3221, for example, reduces the pressure between the contact surfaces of the teeth and the tooth grooves, so that the friction between the friction wheel 321 and the wheel shaft 3221 is reduced, for example, the friction between the contact surfaces of the matching teeth and the tooth grooves is reduced. As shown in the above embodiment, the wheel shaft 3221 and the friction wheel 321 are matched with the teeth and the tooth grooves to realize the axial movement of the friction wheel 321 along the wheel shaft 3221, but the friction wheel 321 itself has a certain weight. Under the action of gravity, there is a certain pressure between the contact surfaces of the teeth and the tooth grooves of the friction wheel 321 and the wheel shaft 3221, so that there is friction between the corresponding contact surfaces of the friction wheel 321 and the wheel shaft 3221. When the axle 3221 rotates, the friction wheel 321 tends to rotate along with the axle 3221 under the action of friction force, thereby affecting the relative rotation between the friction wheel 321 and the axle 3221. The first elastic member 3224 can reduce the pressure between the corresponding contact surfaces of the friction wheel 321 and the axle 3221, thereby reducing the friction force between the corresponding contact surfaces of the friction wheel 321 and the axle 3221, thereby making the friction wheel 321 and the axle 3221 rotate relative to each other. For example, the teeth of the friction wheel 321 slide along the tooth grooves of the axle 3221, so that the friction wheel 321 moves along the axial direction of the friction wheel 321 relative to the axle 3221, and the friction wheel 321 switches between the first mating surface 121 and the second mating surface 122.

[0153] It can be seen that in the embodiments of the present specification, the first elastic member 3224 is provided to offset the pressure between the contact surfaces of the tooth and the tooth groove, thereby reducing the friction between the contact surfaces of the tooth and the tooth groove, so that the tooth can slide in the tooth groove. When the tooth slides to the first stop portion 3222 or the second stop portion 3223, the first stop portion 3222 or the second stop portion 3223 is utilized to prevent the tooth from sliding in the tooth groove, thereby realizing that the wheel axle 3221 drives the friction wheel 321 to rotate. In the process of using the cleaning member to perform cleaning, the time for the swing arm 200 to swing is very short. Therefore, the friction wheel 321 briefly contacts the meeting surface 120, which will not cause damage to the working surface of the friction wheel 321 and the meeting surface 120. However, if the working surface of the friction wheel 321 still contacts other components after the swing arm 200 is swung into place, it will obviously cause damage to the working surface of the friction wheel 321, affecting the swing of the swing arm 200. In the embodiment of the present specification, the first elastic member 3224 is provided to offset the pressure between the contact surfaces of the teeth and the tooth grooves. Compared with the damping member provided on the side wall of the friction wheel 321 to change the rotation speed of the friction wheel 321, thereby avoiding the friction wheel 321 and the wheel shaft 3221 from rotating together, the friction wheel 321 is moved axially relative to the wheel shaft 3221. This can avoid the working surface of the friction wheel 321 from contacting other components after the swing arm 200 is swung into place, thereby reducing damage to the working surface of the friction wheel 321.

[0154] The inner wall of the friction wheel 321 can be directly provided with protrusions or internal threads to form teeth that match the tooth grooves. When the action surface of the friction wheel 321 and the meeting surface 120 is made of rubber, plastic or other materials, it is not convenient to directly set teeth on the inner wall of the friction wheel 321, or the durability of the teeth is limited. The friction wheel 321 can include a main body of the friction wheel 321 and a metal piece arranged on the inner wall of the main body of the friction wheel 321. The metal piece is relatively fixed to the main body of the friction wheel 321, which not only improves the durability of the teeth and ensures the stability of the movement of the friction wheel 321, but also effectively ensures that there is a suitable force between the friction wheel 321 and the meeting surface 120. For example, the metal piece can be a metal nut, and the metal nut has an internal thread that matches the tooth groove, which is convenient for material selection and processing, and reduces costs.

[0155] The first elastic member 3224 is preferably a spring, which has stable and controllable spring force, low cost and convenient layout.

[0156] See also Fig.12 and Fig. 20The swing arm 200 is provided with an elastic member mounting portion 220, and one end of the first elastic member 3224 away from the friction wheel 321 is pressed against the elastic member mounting portion 220. The elastic member mounting portion 220 is provided on the swing arm 200, and during the swinging process of the swing arm, the first elastic member 3224 swings along with the swing arm 200, so that the swinging of the swing arm 200 can avoid causing additional deformation of the first elastic member 3224, thereby affecting the stability of the first elastic member 3224.

[0157] The elastic member installation part 220 can be arranged below the friction wheel 321, for example, the elastic member installation part 220 is arranged on the bottom wall of the housing of the swing arm 200, or, when the friction wheel 321 is located outside the housing of the swing arm 200, the elastic member installation part 220 is arranged on the upper housing 240 of the swing arm 200. The first elastic member 3224 is a compression spring to apply an elastic force opposite to the gravity of the friction wheel 321 to the friction wheel 321. Of course, the elastic member installation part 220 can also be arranged above the friction wheel 321, for example, when the friction wheel 321 is located inside the housing of the swing arm 200, the elastic member installation part 220 is arranged on the upper housing 240 of the swing arm 200, and the first elastic member 3224 is a tension spring to apply an elastic force opposite to the gravity of the friction wheel 321 to the friction wheel 321.

[0158] In some embodiments, a limiting protrusion 221 facing the friction wheel 321 is provided on the side of the elastic member mounting portion 220 facing the friction wheel 321, and the first elastic member 3224 is sleeved on the limiting protrusion 221 to further limit the first elastic member 3224, reduce the shaking of the first elastic member 3224, and improve the problem of the first elastic member 3224 shaking to the wheel axle 3221 and interfering with the movement of the friction wheel 321.

[0159] In some embodiments, the first elastic member 3224 can be sleeved on the outside of the axle 3221 to further reduce the space occupied. At the same time, the axle 3221 can also be used to stabilize the first elastic member 3224.

[0160] Preferably, when the cleaning device is placed on the surface to be cleaned, the axle 3221 is arranged vertically, so that the axial direction of the friction wheel 321 is in the vertical direction. The gravity acting on the friction wheel 321 is completely opposite to the direction of the elastic force of the first elastic member 3224, which makes it easier to offset the force between the friction wheel 321 and the axle 3221.

[0161] See also Figure 5 and Fig.12In one embodiment, a retaining ring 3211 is provided on one side of the friction wheel 321 close to the first elastic member 3224, and the retaining ring 3211 rotates relative to the friction wheel 321. One end of the first elastic member 3224 presses against the elastic member mounting portion 220 of the retaining ring 3211. The first elastic member 3224 and the retaining ring 3211 may only contact and squeeze, or the first elastic member 3224 and the retaining ring 3211 may be fixed and squeezed, and the fixing method includes but is not limited to welding fixation and adhesive fixation. When the friction wheel 321 and the wheel shaft 3221 rotate relative to each other, the retaining ring 3211 and the friction wheel 321 rotate relative to each other, thereby reducing the torsion of the first elastic member 3224, reducing the probability of torsion damage of the first elastic member 3224, extending the service life of the first elastic member 3224, and improving the durability of the first elastic member 3224.

[0162] In some embodiments, when the friction wheel 321 and the wheel shaft 3221 rotate relative to each other, the torque of the friction force between the retaining ring 3211 and the friction wheel 321 acting on the retaining ring 3211 is not greater than the torque of the first elastic member 3224 being twisted to a threshold angle. The friction force between the retaining ring 3211 and the friction wheel 321 is small, so that the force of the retaining ring 3211 acting on the first elastic member 3224 is small, which can reduce the twisting of the first elastic member 3224, avoid the situation where the twisting angle of the first elastic member 3224 is greater than the threshold angle, reduce the probability of damage to the first elastic member 3224, and effectively increase the service life of the first elastic member 3224.

[0163] In one embodiment, the contact area between the retaining ring 3211 and the friction wheel 321 is a smooth surface. The smooth surface can significantly reduce the friction between the friction wheel 321 and the retaining ring 3211, and while reducing the torsion of the first elastic member 3224, it can also prevent the friction between the retaining ring 3211 and the friction wheel 321 from hindering the rotation of the friction wheel 321, and prevent the wheel shaft 3221 from requiring a large driving force to drive the friction wheel 321 to rotate; at the same time, the friction between the retaining ring 3211 and the friction wheel 321 is small, and the wear on the retaining ring 3211 and the contact surface of the friction wheel 321 when the friction wheel 321 rotates can also be reduced.

[0164] In some embodiments, when the friction wheel 321 includes a main body of the friction wheel 321 and a metal part, the retaining ring 3211 is in contact with the metal part. By contacting the retaining ring 3211 with the metal part, the wear of the main body of the friction wheel 321 caused by the relative rotation of the retaining ring 3211 and the main body of the friction wheel 321 can be reduced, and the retaining ring 3211 can be further prevented from damaging the shape of the friction wheel 321. At the same time, the friction coefficient between the main body of the friction wheel 321 and the retaining ring 3211 is usually greater than the friction coefficient between the metal part and the retaining ring 3211, and the contact between the retaining ring 3211 and the metal part makes it easier for the friction wheel 321 and the retaining ring 3211 to rotate relative to each other.

[0165] In some implementations, the retaining ring 3211 may be sleeved on the wheel axle 3221 to further reduce space occupation.

[0166] In some embodiments, a limiting ring 3212 may be provided on one side of the retaining ring 3211 close to the first elastic member 3224, and the first elastic member 3224 is sleeved outside the limiting ring 3212 and pressed against the retaining ring 3211. The first elastic member 3224 is sleeved outside the limiting ring 3212, and plays a positioning role for the first elastic member 3224, reduces the shaking of the first elastic member 3224, and prevents the first elastic member 3224 from contacting the wheel shaft 3221, thereby interfering with the movement of the friction wheel 321 or damaging the first elastic member 3224.

[0167] See also Figure 3 and Figure 4 In one embodiment, the first transmission assembly 320 includes a first intermediate transmission assembly 323, the input end of the first intermediate transmission assembly 323 is connected to the driving member 310, the output end of the first intermediate transmission assembly 323 is connected to the wheel shaft 3221, and the first transmission assembly 320 enables the driving member 310 to drive the wheel shaft 3221 to rotate. The first transmission assembly 320 connects the driving member 310 and the wheel shaft 3221, so that the driving member 310 drives the wheel shaft 3221 to rotate, thereby driving the friction wheel 321 to move and make the swing arm 200 swing, completing the switching of the position of the swing arm 200 and the change of the cleaning mode.

[0168] See also Fig.10 In one embodiment, the driving member 310 includes a rotating output shaft 311 and a driving output gear 312, wherein the driving output gear 312 is fixed to the rotating output shaft 311; an outer swing output gear 3225 is arranged on the wheel shaft 3221; the first intermediate transmission component 323 includes a plurality of first gears 3231 arranged in sequence along the transmission direction, and adjacent first gears 3231 are meshed and / or fixed; wherein the first gear 3231 at the input end of the first intermediate transmission component 323 is meshed with the driving output gear 312; and the first gear 3231 at the output end of the first transmission component 320 is meshed with the outer swing output gear 3225. The first transmission component 320 completes the transmission by directly meshing adjacent first gears 3231 or coaxially fixing adjacent first gears 3231, and transmits the torque output by the rotating output shaft 311 through the driving output gear 312 to the wheel shaft 3221, thereby driving the friction wheel 321 to move axially and rotate circumferentially.

[0169] See also Fig.14 and Fig.18In one embodiment, the cleaning assembly includes a second elastic member 400. One end of the second elastic member 400 is disposed on the swing arm 200, and the other end of the second elastic member 400 is disposed on the fixing frame 100; wherein, when the swing arm 200 is in the retracted position, the second elastic member 400 applies a force to the swing arm 200 that has a tendency to rotate along a third clockwise direction, so that the friction wheel 321 is separated from the engaging surface 120, and the third clockwise direction is the rotation direction of the swing arm 200 from the extended position to the retracted position; when the swing arm 200 is in the extended position, the second elastic member 400 applies a force to the swing arm 200 that has a tendency to rotate along a fourth clockwise direction, so that the friction wheel 321 is separated from the engaging surface 120, and the fourth clockwise direction is the rotation direction of the swing arm 200 from the retracted position to the extended position.

[0170] When the cleaning assembly moves from the retracted position to the extended position, the force between the friction wheel 321 and the second engaging surface 122 causes the friction wheel 321 to roll along the second engaging surface 122. Fig.15 As shown, when the friction wheel 321 moves to the end of the second engaging surface 122, the friction wheel 321 partially contacts the second engaging surface 122, and the force between the friction wheel 321 and the second engaging surface 122 is not enough to completely separate the friction wheel 321 from the second engaging surface 122. There is always a certain force between the friction wheel 321 and the end of the second engaging surface 122, which may cause vibration of the swing arm 200, wear of the friction wheel 321, and wear of the second engaging surface 122. The force applied to the swing arm 200 by the second elastic member 400 allows the friction wheel 321 to completely separate from the second engaging surface 122, thereby reducing the vibration of the swing arm 200, avoiding the wear of the friction wheel 321 and the second engaging surface 122, and extending the service life of the friction wheel 321 and the second engaging surface 122. At the same time, the second elastic member 400 applies a continuous force to the swing arm 200, which can also reduce the shaking of the swing arm 200 during the cleaning process of the cleaning member and avoid the swing arm 200 from being retracted. During the cleaning process, the cleaning component is squeezed and collided with the wall, causing the swing arm 200 to rotate toward the retracted position. Under the action of the second elastic member 400, the cleaning component will also return to the extended position in time.

[0171] Similarly, if Fig.19As shown, when the cleaning component moves from the extended position to the retracted position, the friction wheel 321 contacts the edge portion of the first mating surface 121, and the friction wheel 321 cannot be completely separated from the first mating surface 121. The second elastic member 400 applies a force to the swing arm 200 to rotate along the third clockwise direction, so that the swing arm 200 moves toward the retracted position, and the friction wheel 321 is completely separated from the first mating surface 121, thereby reducing the shaking of the swing arm 200, reducing the wear of the friction wheel 321 and the first mating surface 121, and improving the service life.

[0172] In some embodiments, if the swing arm 200 is squeezed against a wall surface in the extended position, and the swing arm 200 rotates for a long distance in the direction of the stowed position, the motor can be controlled to reverse through abnormal detection, so that the friction wheel 321 moves along the axial direction of the wheel shaft 3221, the contact surface 120 is switched, and the friction wheel 321 moves along the switched contact surface 120, so that the swing arm 200 moves to the stowed position to avoid damaging the cleaning piece or other parts of the cleaning assembly. If the swing arm 200 is squeezed against a wall surface, and the swing arm 200 rotates for a long distance in the direction of the stowed position, the motor will be blocked, and the current of the motor frame can be detected to determine whether this abnormal situation occurs. Of course, other methods can also be used to perform abnormal detection, and this application does not limit this.

[0173] See also Fig.14 and Fig.18 In one embodiment, when the swing arm 200 switches between the stowed position and the extended position, the motion path of the line of action of the force applied by the second elastic member 400 to the swing arm 200 passes through the axis of rotation of the swing arm 200 and the fixing frame 100. For example, the second elastic member 400 is an elastic member such as a spring or a pull rope. During the switching process, the second elastic member 400 will intersect with the axis of the first rotating shaft 110 once, thereby changing the direction of the torque applied by the second elastic member 400 to the swing arm 200. When the swing arm 200 is in the retracted position, the direction of the torque exerted by the second elastic member 400 on the swing arm 200 is along the direction of the swing arm 200 from the extended position to the retracted position. In other words, the force exerted by the second elastic member 400 on the swing arm 200 makes the swing arm 200 tend to rotate from the extended position to the retracted position; when the swing arm 200 is in the extended position, the direction of the torque exerted by the second elastic member 400 on the swing arm 200 is along the direction of the swing arm 200 from the retracted position to the extended position. In other words, the force exerted by the second elastic member 400 on the swing arm 200 makes the swing arm 200 tend to rotate from the retracted position to the extended position.

[0174] When the axis of the second elastic member 400 intersects the axis of the first rotating shaft 110, the vertical distance between the line of action of the elastic force of the second elastic member 400 and the rotation axis of the swing arm 200 (i.e., the axis of the first rotating shaft 110) is zero, i.e., the lever arm is zero. At this time, the torque of the second elastic member 400 on the swing arm 200 rotating around the axis of the first rotating shaft 110 is zero. When the swing arm 200 continues to swing from this position to the extended position or the retracted position, the axis of the second elastic member 400 deviates to the side of the axis of the first rotating shaft 110, and the vertical distance between the line of action of the elastic force of the second elastic member 400 and the rotation axis of the swing arm 200 gradually increases, i.e., the lever arm gradually increases, and the torque of the second elastic member 400 acting on the swing arm 200 causes the swing arm 200 to rotate around the axis of the first rotating shaft 110. It can be seen from the above embodiments that when the swing arm 200 swings from the extended position to the retracted position, or from the retracted position to the extended position, the contact area between the friction wheel 321 and the mating surface 120 is reduced, resulting in a reduction in the force between the friction wheel 321 and the mating surface 120, and the torque corresponding to the force cannot overcome the resistance to the rotation of the swing arm 200, and the swing arm 200 cannot continue to rotate. In the embodiments of this specification, a second elastic member 400 is further provided, and the torque corresponding to the elastic force of the second elastic member 400 is used to compensate for the torque required for the swing arm 200 to continue to rotate, so that the swing arm 200 can continue to rotate, thereby allowing the friction wheel 321 to rotate to a position disengaged from the mating surface 120.

[0175] And through this implementation, when the swing arm 200 is in the extended position and the retracted position, the second elastic member 400 compensates for the torque of the swing arm 200 in different directions, thereby achieving the goal of providing an elastic member to provide the swing arm 200 with the required torque compensation when the swing arm 200 is in different positions, thereby assisting in moving the friction wheel 321 into place; the structure is simple and compact, and the space required for the swinging of the cleaning component is small. Especially for cleaning components with smaller space, this structural design makes the structure of the cleaning component more compact.

[0176] When the friction wheel 321 rolls along the contact surface 120 to the edge of the contact surface 120 , the torque of the second elastic member 400 acting on the swing arm 200 is greater than or equal to the resistance torque of the swing arm 200 moving in the direction of the friction wheel 321 separating from the contact surface 120 . When the torque of the second elastic member 400 acting on the swing arm 200 is greater than the resistance torque of the swing arm 200 moving in the direction of the friction wheel 321 separating from the contact surface 120, the second elastic member 400 can make the swing arm 200 separate from the contact surface 120; when the torque of the second elastic member 400 acting on the swing arm 200 is equal to the resistance torque of the swing arm 200 moving in the direction of the friction wheel 321 separating from the contact surface 120, the swing arm 200 will continue to move under the action of inertia, thereby making the friction wheel 321 separate from the contact surface 120, effectively ensuring that the friction wheel 321 can separate from the contact surface 120 in both the extended position and the retracted position, reducing the wear of the friction wheel 321 and the contact surface 120. The resistance torque of the swing arm 200 moving in the direction of the friction wheel 321 separating from the contact surface 120 includes the torque of the friction force between the swing arm 200 and the fixed frame 100 acting on the swing arm 200, etc.

[0177] The torque exerted on the swing arm 200 by the force between the friction wheel 321 and the mating surface 120 is greater than the resistance torque of the initial swing of the swing arm 200. The resistance torque of the initial swing of the swing arm 200 includes the torque exerted on the swing arm 200 by the second elastic member 400 and the torque exerted on the swing arm 200 by the friction force between the swing arm 200 and the fixed frame 100. When the swing arm 200 moves from the extended position to the retracted position or from the retracted position to the extended position, the force exerted by the second elastic member 400 on the swing arm 200 in the front section of the movement of the swing arm 200 is a resistance torque. The movement of the swing arm 200 also needs to overcome the resistance torque such as the torque exerted on the swing arm 200 by the friction force between the swing arm 200 and the fixed frame 100. The torque exerted on the swing arm 200 by the action force between the friction wheel 321 and the mating surface 120 is greater than the resistance torque of the rotation of the swing arm 200, so that the swing arm 200 can move from the extended position to the retracted position or from the retracted position to the extended position, thereby increasing the cleaning range of the cleaning member.

[0178] For example, before the swing arm 200 swings from the stowed position to the extended position and the axis of the second elastic member 400 intersects with the axis of the first rotating shaft 110, the torque generated by the force of the friction wheel 321 and the second mating surface 122 on the swing of the swing arm 200 is greater than the sum of the torque of the second elastic member 400 acting on the swing arm 200 and the torque generated by the initial resistance to the swing of the swing arm 200, so that the swing arm 200 can swing; similarly, before the swing arm 200 swings from the extended position to the stowed position and the axis of the second elastic member 400 intersects with the axis of the first rotating shaft 110, the torque of the force of the friction wheel 321 and the first mating surface 121 on the swing arm 200 is greater than the sum of the torque of the second elastic member 400 acting on the swing arm 200 and the torque generated by the initial resistance to the swing of the swing arm 200, so that the swing arm 200 can swing from the extended position to the stowed position. Among them, the torque generated by the initial resistance is the torque that the swing arm 200 needs to overcome when the torque generated by the second elastic member 400 and the torque generated by the friction wheel 321 do not exist, that is, the torque equal to the resistance torque of the friction force between the swing arm 200 and the fixed frame 100 acting on the swing arm 200.

[0179] In some embodiments, the second elastic member 400 is a spring, and the two ends of the spring have earrings, which are respectively mounted on the mounting rods of the swing arm 200 and the fixing frame 100. Further, the mounting rod has a limiting structure to prevent the spring from being separated from the swing arm 200 or the fixing frame 100.

[0180] See also Figure 7 and Figure 8 In one embodiment, the fixing frame 100 is provided with a first limiting portion 130, and the swing arm 200 is provided with a second limiting portion 210. The first limiting portion 130 cooperates with the second limiting portion 210 to limit the movement of the swing arm 200 between the retracted position and the extended position. The first limiting portion 130 cooperates with the second limiting portion 210 to limit the swing position of the swing arm 200, thereby preventing the swing arm 200 from excessively rotating under the action of the second elastic member 400.

[0181] See also Figure 8 In one embodiment, the second limiting portion 210 is a limiting groove, the first limiting portion 130 is a limiting block inserted into the limiting groove, and when the swing arm 200 is in the retracted position and the extended position, the limiting block moves to the two ends of the limiting groove. The cooperation between the limiting groove and the limiting block is stable and reliable, the implementation method is simple, the cost is low, and the cost of the cleaning equipment is reduced.

[0182] In one embodiment, the limit block is an arc block, and the center of the arc block is on the axis of the first rotating shaft 110; there is a gap between the limit block and the first rotating shaft 110. In other words, there is no contact between the first rotating shaft 110 and the limit block, and the distance between the first rotating shaft 110 and the limit block is small, which can avoid friction between the limit block and the first rotating shaft 110 and reduce the volume of the limit block and the limit groove, which is conducive to the miniaturization and integration of the cleaning component.

[0183] The limiting groove is an arc groove, and the arc-shaped limiting block can increase the contact area between the limiting block and the arc-shaped limiting groove, thereby improving the stability of the limiting, reducing the probability of damage to the limiting block and the limiting groove, and extending the service life. The swing arm 200 rotates around the first rotating shaft 110, and the center of the arc block is on the axis of the first rotating shaft 110, which can ensure that the edge of the arc block abuts against the edge of the arc groove, reducing the pressure between the arc block and the arc groove.

[0184] See also Fig. 22 and Fig.23 In some embodiments, the fixing frame 100 is provided with an insertion portion 140, and the swing arm 200 is provided with a slot 230 adapted to the insertion portion 140, and the insertion portion 140 is inserted into the slot 230; wherein, the first rotating shaft 110 is provided at the insertion portion 140, and the axis of the first rotating shaft 110 coincides with the axis of the insertion portion 140. When the swing arm 200 and the fixing frame 100 shake relative to each other, a shear force will be generated on the first rotating shaft 110. Due to the volume limitation of the cleaning component, the outer diameter of the first rotating shaft 110 is limited, and the shear force that can be carried is limited. By providing the insertion portion 140 and the slot 230, the shaking of the swing arm 200 and the fixing frame 100 in the direction perpendicular to the axis of the first rotating shaft 110 is limited, which effectively reduces the shear force on the first rotating shaft 110, reduces the risk of radial damage to the first rotating shaft 110, increases the service life of the first rotating shaft 110, and increases the durability of the cleaning component and the cleaning equipment.

[0185] In some embodiments, the insertion portion 140 has a circular cross section along the radial direction of the insertion portion 140, and the slot 230 is a circular groove. The insertion portion 140 with a circular cross section and the circular slot 230 can rotate relative to each other, and the slot 230 can provide support for the radial direction of the insertion portion 140, effectively protecting the first rotation axis 110.

[0186] In other embodiments, the cross section of the insertion portion 140 along the radial direction of the insertion portion 140 is circular, the slot 230 is an arcuate slot, and the angle of the slot 230 is greater than 180°. The arcuate slot 230 greater than 180° limits and supports the insertion portion 140, prevents the insertion portion 140 and the slot 230 from relative movement along the radial direction of the insertion portion 140, and ensures support for the first rotation axis 110. The angle of the slot 230 can be any angle between 180° and 360°, such as 180°, 200°, 270°, 300°, etc.

[0187] See also Fig.23 Furthermore, the slot 230 is connected to the limiting slot, the first limiting portion 130 is inserted into the limiting slot, and the slot 230 is connected to the limiting slot, which can reduce the distance between the first limiting portion 130 and the first rotating shaft 110 as much as possible, thereby reducing the volume of the limiting slot, facilitating the design and layout of the space near the first rotating shaft 110, and improving the integration of the cleaning component.

[0188] See also Fig. 22 In some embodiments, the fixing frame 100 is provided with a shaft mounting portion 150 and a first mounting member 160, the first rotating shaft 110 passes through the shaft mounting portion 150, the first mounting member 160 abuts against the shaft mounting portion 150, and one end of the second elastic member 400 is connected to the first mounting member 160. Due to the volume limitation of the cleaning assembly, the outer diameter of the first mounting member 160 for mounting the second elastic member 400 is limited, so it is easy to cause damage to the connection between the first mounting member 160 and the fixing frame 100 or the body of the first mounting member 160. By abutting the shaft mounting portion 150 with the first mounting member 160, the shaft mounting portion 150 supports the first mounting member 160, thereby improving the bearing capacity of the first mounting member 160, reducing the risk of damage to the connection between the first mounting member 160 and the fixing frame 100 or the body of the first mounting member 160, and improving the durability of the first mounting member 160.

[0189] See also Fig. 22 In some embodiments, the first mounting member 160 includes an insertion rod 161 and an insertion portion 162, the insertion rod 161 is plugged into the insertion portion 162, the insertion portion 162 is in contact with the shaft mounting portion 150, and the second elastic member 400 is mounted on the insertion rod 161. The insertion of the insertion rod 161 and the insertion portion 162 facilitates the installation of the insertion rod 161 and the second elastic member 400, and facilitates the assembly of the cleaning component.

[0190] In some embodiments, the first mounting member 160 is disposed between the first rotating shaft 110 and the engaging surface 120; one end of the second elastic member 400 is connected to the first mounting member 160; a second mounting member 260 is disposed on the swing arm 200, the second mounting member 260 is disposed between the first rotating shaft 110 and the connecting end of the cleaning member, and the other end of the second elastic member 400 is connected to the second mounting member 260. The two ends of the second elastic member 400 are respectively mounted on the first mounting member 160 and the second mounting member 260, which effectively ensures that the second elastic member 400 functions and ensures that the friction wheel 321 can be separated from the engaging surface 120 when it moves from the middle of the engaging surface 120 to the two ends of the engaging surface 120.

[0191] See also Fig.23 In some embodiments, the swing arm 200 includes a relatively fixed upper shell 240 and a lower shell 250, and the upper shell 240 and the lower shell 250 form a accommodating cavity, in which a partial transmission mechanism of the power assembly is installed, for example, the first intermediate transmission assembly 323, the second transmission assembly 330, etc.

[0192] In some embodiments, the driving member 310 includes a motor 313, which is disposed on the upper side of the upper housing 240 of the swing arm 200, so that the space of the upper housing 240 can be fully utilized to facilitate the arrangement of the cleaning components. The connection ends of the friction wheel 321 and the cleaning component are respectively located at both ends of the length direction of the swing arm 200, and the connection end of the cleaning component is where the swing arm 200 is connected to the cleaning component. The connection ends of the friction wheel 321 and the cleaning component are respectively disposed at both ends of the length direction of the swing arm 200. When the swing arm 200 reaches the extended position, the cleaning component can be further away from the main body of the cleaning component to increase the cleaning range of the cleaning component.

[0193] The motor 313 is disposed between the friction wheel 321 and the connection end of the cleaning member. When the swing arm 200 is in the extended position, the motor 313 is located at the lower side of the cleaning device body. When the swing arm 200 is in the extended position and the retracted position, the motor 313 is always located at the lower side of the cleaning device body, preventing the motor 313 from being exposed, avoiding the motor 313 from being damaged by collision, and improving the safety of the cleaning device.

[0194] In some embodiments, the first rotating shaft 110 is located between the friction wheel 321 and the connection end of the cleaning member, and the first rotating shaft 110 and the motor 313 are arranged along the width direction of the swing arm 200. The width direction of the swing arm 200 is perpendicular to the length direction of the swing arm 200, and perpendicular to the height direction of the swing arm 200. The line connecting the axis of the first rotating shaft 110 and the axis of the output shaft of the motor 313 is parallel or substantially parallel to the width direction of the swing arm 200, making full use of the width space of the swing arm 200. The first rotating shaft 110 can be close to the edge of the swing arm 200 and / or the fixed frame 100, which is more convenient for the swing arm 200 and the fixed frame 100 to rotate relative to each other.

[0195] See also Fig.21 and Fig. 22 In some embodiments, the fixing frame 100 includes a top shell 170 and a side shell 180. The top shell 170 is located above the upper shell 240 of the swing arm 200, and a clearance space for avoiding the motor 313 is formed near the motor 313 side. The clearance space can prevent the motor 313 from interfering with the fixing frame 100. The friction wheel 321 is located below the top shell 170. The top shell 170 protects the friction wheel 321 to reduce the risk of collision of the friction wheel 321. The friction wheel 321 will rotate during the use of the cleaning component. The friction wheel 321 is protected by the top shell 170 to reduce the risk of debris entering the friction wheel 321 and reduce the occurrence of debris causing the movement of the friction wheel 321 to be restricted. The side shell 180 is located on one side of the top shell 170 and extends toward the swing arm 200. The mating surface 120 is arranged on the wall surface of the side shell 180 facing the friction wheel 321. On the one hand, the side shell 180 can protect the friction wheel 321. On the other hand, the mating surface 120 on the side shell 180 abuts against the friction wheel 321, so that the friction wheel 321 rolls along the mating surface 120, thereby driving the swing arm 200 and the fixed frame 100 to rotate relative to each other.

[0196] See also Fig. 22 and Fig.23In some embodiments, the fixing frame 100 is provided with a first limiting portion 130, which is arranged on the side of the first rotating shaft 110 close to the friction wheel 321; the swing arm 200 is provided with a second limiting portion 210, which is arranged on the side of the first rotating shaft 110 away from the cleaning member; the first limiting portion 130 cooperates with the second limiting portion 210 to limit the swing arm 200 from moving between the retracted position and the extended position. The internal accommodation cavity of the swing arm 200 is used to install some components of the power assembly 300. By arranging the first limiting portion 130 and the second limiting portion 210 on the side of the first rotating shaft 110 close to the friction wheel 321 and away from the cleaning member, the space of the connection area between the swing arm 200 and the fixing frame 100 can be fully utilized without occupying the internal space of the swing arm 200, thereby facilitating the installation of some components of the power assembly 300, reducing the volume of the swing arm 200, and reducing the volume of the cleaning assembly.

[0197] In some embodiments, the first limiting portion 130 is located at the lower portion of the fixing frame 100, and the second limiting portion 210 is located at the upper portion of the swing arm 200. For example, the second limiting portion 210 is located at the upper portion of the upper shell 240 of the swing arm 200. The first limiting portion 130 and the second limiting portion 210 are arranged in the external space of the swing arm 200 to avoid encroaching on the internal space of the swing arm 200, so that some components of the power assembly 300 can be installed in the accommodating cavity of the swing arm 200, thereby improving the integration of the cleaning assembly and reducing the volume of the cleaning assembly.

[0198] See also Figure 8 and Fig. 9 In one embodiment, the driving member 310 includes a rotating output shaft 311 and a driving output gear 312, and the driving output gear 312 is fixed to the rotating output shaft 311; the second transmission assembly 330 includes a first rotating transmission assembly 331 and a second rotating transmission assembly 332, the input end of the first rotating transmission assembly 331 is connected to the driving output gear 312, and the output end of the second rotating transmission assembly 332 is connected to the cleaning member; wherein, the second rotating transmission assembly 332 includes two input ends, and the rotation direction of one of the input ends of the second rotating transmission assembly 332 is the same clockwise direction as the rotation direction of the output end of the second rotating transmission assembly 332, and the rotation direction of the other input end is opposite to the rotation direction of the output end of the second rotating transmission assembly 332 in the clockwise direction; the driving output gear 312 changes the rotation direction so that the output end of the first rotating transmission assembly 331 can be selectively connected to the two input ends of the second rotating transmission assembly 332.

[0199] During the use of the cleaning component, the rotation output shaft 311 of the driving member 310 needs to change the rotation direction to drive the swing arm 200 to move between the retracted position and the extended position, but the cleaning member needs to maintain a rotation direction to prevent dust and the like from contaminating the cleaning surface after cleaning, so as to facilitate the cleaning of dirt. The rotation direction of the driving output gear 312 is consistent with the rotation direction of the rotating output shaft 311. When the driving output gear 312 rotates in different clockwise directions, the output end of the first rotating transmission component 331 is respectively connected to the two input ends of the second rotating transmission component 332, thereby keeping the rotation direction of the cleaning member unchanged and ensuring the cleaning effect.

[0200] The two input ends of the second rotating transmission component 332 are respectively a first input end and a second input end, wherein the number of gears from the first input end to the output end is one more or one less than the number of gears from the second input end to the output end, so that the rotation directions from the two input ends to the output ends are different.

[0201] Of course, as some optional methods, the second rotation transmission component 332 may also have other different numbers of gears between the two input ends and the output end, or other methods, so that the rotation directions between the two input ends and the output ends are different.

[0202] See also Figure 8 In one embodiment, the output end of the first rotating transmission component 331 is the second gear 3311; the two input ends of the second rotating transmission component 332 are respectively the third gear 3321 and the fourth gear 3322; the second gear 3311 is movably and coaxially arranged between the third gear 3321 and the fourth gear 3322 along its axial direction, and the sides of the third gear 3321 and the fourth gear 3322 facing the second gear 3311 are both provided with ratchet teeth, and the driving output gear 312 changes the rotation direction so that the ratchet teeth of the second gear 3311 can selectively engage with the ratchet teeth of the third gear 3321 or the ratchet teeth of the fourth gear 3322. The second gear 3311 is movable along its axial direction, and the ratchet teeth of the second gear 3311 are not meshed with the ratchet teeth of the third gear 3321 and the ratchet teeth of the fourth gear 3322 at the same time, so that the rotation direction of the second gear 3311 can be changed so that the ratchet teeth of the second gear 3311 are respectively meshed with the ratchet teeth of the third gear 3321 and the ratchet teeth of the fourth gear 3322, so that the output end of the first rotating transmission component 331 is respectively connected to the two input ends of the second rotating transmission component 332, so that when the rotation direction of the rotating output shaft 311 changes, the rotation direction of the cleaning member remains unchanged.

[0203] See also Fig. 9 and Fig.10In one embodiment, the second rotation transmission assembly 332 includes a third gear 3321, a fourth gear 3322, a fifth gear 3324 and a sixth gear 3325, wherein the sixth gear 3325 is fixed to the cleaning member or is fixed to the cleaning member after being meshed with the second rotation transmission gear 3323, so that the cleaning member is driven to rotate by the rotation of the sixth gear 3325. The third gear 3321 is directly meshed with the sixth gear 3325, the fourth gear 3322 is meshed with the fifth gear 3324, and the fifth gear 3324 is meshed with the sixth gear 3325. The third gear 3321 serves as an input end of the second rotation transmission assembly 332, and the fourth gear 3322 and the fifth gear 3324 serve as the other input end of the second rotation transmission assembly 332, so that one input end of the second rotation transmission assembly 332 has the same rotation direction as the output end, and the other input end has the opposite rotation direction as the output end, so that when the rotation output shaft 311 changes direction, the rotation direction of the cleaning member remains unchanged.

[0204] In another embodiment, the output end of the first rotating transmission component 331 is the second gear 3311; the two input ends of the second rotating transmission component 332 are respectively the third gear 3321 and the fourth gear 3322, and the second gear 3311 and the third gear 3321, and the second gear 3311 and the fourth gear 3322 are respectively connected through a one-way bearing, so that when the second gear 3311 rotates in different clockwise directions, the second gear 3311 drives the third gear 3321 and the fourth gear 3322 to rotate respectively.

[0205] Exemplarily, shafts are respectively provided on the second gear 3311, the third gear 3321 and the fourth gear 3322, the shaft of the second gear 3311 is connected to the shaft of the third gear 3321 via a one-way bearing, and the shaft of the second gear 3311 is connected to the shaft of the fourth gear 3322 via another one-way bearing, so that when the second gear 3311 rotates in different clockwise directions, it is transmitted to the second rotating transmission component 332 through the two input ends of the second rotating transmission component 332 respectively.

[0206] In one embodiment, the first rotation transmission assembly 331 includes one or more first rotation transmission gears 3312 , so that the driving member 310 drives the second gear 3311 to rotate through the first rotation transmission assembly 331 .

[0207] The second aspect of the present invention provides a cleaning device, comprising a device body and any one of the cleaning components described above, wherein the fixing frame 100 of the cleaning component is mounted on the device body. The cleaning device is configured to clean the surface to be cleaned, and the cleaning device may be a vacuum robot, a mopping / brushing robot, a window climbing robot, etc. The cleaning device may have functions such as movement, sweeping, and vacuuming. The cleaning device comprises a device body, a cleaning module, and a cleaning component, and the cleaning module and the cleaning component are mounted on the device body to clean the surface to be cleaned. The cleaning device may also have other parts or modules, such as a control system, a travel system, etc. Please refer to the existing cleaning equipment, and this application will not elaborate on this.

[0208] The cleaning component of the cleaning device of the present application includes a fixed frame 100 and a swing arm 200 that can rotate relative to each other. The fixed frame 100 and the swing arm 200 are driven by the power component 300 to rotate relative to each other, so that the cleaning range of the cleaning member changes. When cleaning an ordinary surface to be cleaned, the cleaning component is in a conventional cleaning mode, and the swing arm 200 is in a retracted position; when cleaning special areas such as corners, the cleaning component is in a special cleaning mode, and the swing arm 200 is in an extended position, thereby cleaning areas that the cleaning member cannot cover in the conventional cleaning mode, increasing the cleaning range, reducing cleaning blind spots, improving the cleaning effect, and effectively improving user satisfaction. Therefore, the present invention effectively overcomes some practical problems in the prior art and has a high utilization value and use significance.

[0209] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A cleaning component, characterized in that: include: A fixed frame (100), the fixed frame (100) being configured to be connected to a main body of the cleaning device, and a first rotating shaft (110) being provided on the fixed frame (100); A swing arm (200) is rotatably connected to the fixed frame (100) via the first rotating shaft (110), and a rotatable cleaning member is provided on the swing arm (200); A power assembly (300) drives the cleaning element to rotate, and the power assembly (300) drives the swing arm (200) and the fixing frame (100) to rotate relative to each other, so as to drive the swing arm (200) to move between a retracted position and an extended position; Wherein, the first rotating shaft (110) is arranged independently of the power assembly (300).

2. The cleaning assembly according to claim 1, characterized in that: The power assembly (300) comprises: A driving member (310); a first transmission assembly (320), wherein the first transmission assembly (320) drives the swing arm (200) and the fixing frame (100) to rotate relative to each other under the drive of the driving member (310); A second transmission assembly (330), wherein the second transmission assembly (330) drives the cleaning member to rotate under the drive of the driving member (310).

3. The cleaning assembly according to claim 2, characterized in that: The driving member (310) comprises a rotating output shaft (311), wherein in a normal cleaning mode, the rotating output shaft (311) rotates along a first clockwise direction, and in a special cleaning mode, the rotating output shaft (311) rotates along a second clockwise direction; When the rotation direction of the rotating output shaft (311) changes from the first clockwise direction to the second clockwise direction, the cleaning component switches from the normal cleaning mode to the special cleaning mode; When the rotation direction of the rotation output shaft (311) changes from the second clockwise direction to the first clockwise direction, the cleaning component switches from the special cleaning mode to the normal cleaning mode.

4. The cleaning assembly according to claim 3, characterized in that: The cleaning member rotates in the same clockwise direction in the special cleaning mode and in the normal cleaning mode.

5. The cleaning assembly according to claim 1, characterized in that: The fixing frame (100) is provided with a first limiting portion (130); The swing arm (200) is provided with a second limiting portion (210); The first limiting portion (130) cooperates with the second limiting portion (210) to limit the movement of the swing arm (200) between the retracted position and the extended position.

6. The cleaning assembly according to claim 5, characterized in that: The second limiting portion (210) is a limiting groove, the first limiting portion (130) is a limiting block inserted into the limiting groove, and when the swing arm (200) is in the retracted position and the extended position, the limiting block moves to the closed ends of the limiting groove respectively.

7. The cleaning assembly according to claim 6, characterized in that: The limit block is an arc-shaped block, the center of which is on the axis of the first rotating shaft (110); there is a gap between the limit block and the first rotating shaft (110); and the limit groove is an arc-shaped groove.

8. The cleaning assembly according to claim 1, characterized in that: The fixing frame (100) is provided with an insertion portion (140), the swing arm (200) is provided with a slot (230) adapted to the insertion portion (140), and the insertion portion (140) is inserted into the slot (230); Wherein, the first rotating shaft (110) is arranged at the insertion part (140), and the axis of the first rotating shaft (110) coincides with the axis of the insertion part (140).

9. The cleaning assembly according to claim 8, characterized in that: The cross-section of the insertion portion (140) along the radial direction of the insertion portion (140) is circular, and the slot (230) is a circular slot; or, the slot (230) is an arc-shaped slot, and the angle of the slot (230) is greater than 180°.

10. The cleaning assembly according to claim 2, characterized in that: The output end of the first transmission assembly (320) comprises a friction wheel (321), and a contact surface (120) is provided on the wall surface of the fixed frame (100). When the friction wheel (321) abuts against the contact surface (120), there is a force between the friction wheel (321) and the contact surface (120), so that the friction wheel (321) rolls along the contact surface (120).

11. The cleaning assembly according to claim 10, characterized in that When the swing arm (200) is in the retracted position and the extended position, the friction wheel (321) does not abut against the engaging surface (120).

12. The cleaning assembly according to claim 11, characterized in that include: A second elastic member (400), one end of which is arranged on the swing arm (200) and the other end of which is arranged on the fixing frame (100); Wherein, when the swing arm (200) is in the retracted position, the second elastic member (400) applies a force to the swing arm (200) so that the swing arm (200) has a tendency to rotate along a third clockwise direction, so that the friction wheel (321) is separated from the engaging surface (120), and the third clockwise direction is the rotation direction of the swing arm (200) from the extended position to the retracted position; when the swing arm (200) is in the extended position, the second elastic member (400) applies a force to the swing arm (200) so that the swing arm (200) has a tendency to rotate along a fourth clockwise direction, so that the friction wheel (321) is separated from the engaging surface (120), and the fourth clockwise direction is the rotation direction of the swing arm (200) from the retracted position to the extended position.

13. The cleaning assembly according to claim 12, characterized in that When the swing arm (200) switches between the retracted position and the extended position, the movement path of the line of action of the force applied by the second elastic member (400) to the swing arm (200) passes through the axis of the first rotating shaft (110).

14. The cleaning assembly according to claim 10 or 11, characterized in that: The meeting surface (120) comprises a first meeting surface (121) and a second meeting surface (122), and when projected along the axial direction of the friction wheel (321), a first end of the projection of the first meeting surface (121) exceeds a first end of the projection of the second meeting surface (122), and a second end of the projection of the second meeting surface (122) exceeds a second end of the projection of the first meeting surface (121), and the first end and the second end are opposite ends; The first transmission assembly (320) comprises an outward swing transmission assembly (322), and the outward swing transmission assembly (322) drives the friction wheel (321) to move along the axial direction of the friction wheel (321), so that the friction wheel (321) abuts against the first mating surface (121) and the second mating surface (122), respectively.

15. The cleaning assembly according to claim 14, characterized in that The outward swing transmission assembly (322) comprises: A wheel axle (3221), the wheel axle (3221) is provided with a spiral-shaped tooth groove along the axial direction of the wheel axle (3221), and the friction wheel (321) is provided with teeth matching the tooth groove; A first stopper (3222) is arranged inside the tooth groove and / or outside the tooth groove; A second stopper (3223) is arranged inside the tooth groove and / or outside the tooth groove; The teeth move along the tooth grooves so that the friction wheel (321) moves axially along the wheel axle (3221); the first stop portion (3222) and the second stop portion (3223) limit the axial movement of the friction wheel (321) along the wheel axle (3221).

16. The cleaning assembly according to claim 15, characterized in that The first stop portion (3222) and the second stop portion (3223) are respectively arranged at the two ends of the tooth groove, and the first stop portion (3222) and the second stop portion (3223) limit the movement of the tooth along the tooth groove, thereby limiting the axial movement of the friction wheel (321) along the wheel shaft (3221).

17. The cleaning assembly according to claim 12, characterized in that The fixing frame (100) is provided with: A rotating shaft installation portion (150), wherein the first rotating shaft (110) passes through the rotating shaft installation portion (150); A first mounting member (160), wherein the first mounting member (160) is in contact with the rotating shaft mounting portion (150), and one end of the second elastic member (400) is connected to the first mounting member (160).

18. The cleaning assembly according to claim 17, characterized in that The first mounting member (160) comprises an insert rod (161) and an insert portion (162), the insert rod (161) being inserted into the insert portion (162); the insert portion (162) is in contact with the shaft mounting member (150), and the second elastic member (400) is mounted on the insert rod (161).

19. The cleaning assembly according to claim 12, characterized in that The fixing frame (100) is provided with a first mounting member (160), and the first mounting member (160) is arranged between the first rotating shaft (110) and the mating surface (120); one end of the second elastic member (400) is connected to the first mounting member (160); The swing arm (200) is provided with a second mounting member (260), the second mounting member (260) being arranged between the first rotating shaft (110) and the connecting end of the cleaning member, and the other end of the second elastic member (400) is connected to the second mounting member (260).

20. The cleaning assembly according to claim 15, characterized in that The first transmission assembly (320) comprises a first intermediate transmission assembly (323), the input end of the first intermediate transmission assembly (323) is connected to the driving member (310), the output end of the first intermediate transmission assembly (323) is connected to the wheel axle (3221), and the first transmission assembly (320) enables the driving member (310) to drive the wheel axle (3221) to rotate.

21. The cleaning assembly according to claim 20, characterized in that The driving member (310) comprises a rotating output shaft (311) and a driving output gear (312), wherein the driving output gear (312) is fixed to the rotating output shaft (311); The wheel shaft (3221) is provided with an outer swing output gear (3225); The first intermediate transmission component (323) comprises a plurality of first gears (3231) arranged in sequence along the transmission direction, and adjacent first gears (3231) are meshed with each other and / or adjacent first gears (3231) are fixed to each other; The first gear (3231) at the input end of the first intermediate transmission component (323) is meshed with the driving output gear (312); and the first gear (3231) at the output end of the first transmission component (320) is meshed with the outer swing output gear (3225).

22. The cleaning assembly according to claim 10, characterized in that The driving member (310) comprises a motor (313), and the motor (313) is arranged on the upper side of the upper housing (240) of the swing arm (200); The connection ends of the friction wheel (321) and the cleaning member are respectively located at two ends of the length direction of the swing arm (200), and the motor (313) is arranged between the connection ends of the friction wheel (321) and the cleaning member; When the swing arm (200) is in the extended position, the motor (313) is located at the lower side of the cleaning device body.

23. The cleaning assembly according to claim 22, characterized in that The first rotating shaft (110) is located between the friction wheel (321) and the connecting end of the cleaning member; The first rotating shaft (110) and the motor (313) are arranged along the width direction of the swing arm (200).

24. The cleaning assembly according to claim 22, characterized in that The fixing frame (100) comprises: A top shell (170) is located above the upper shell (240) of the swing arm (200), and is provided with an escape space for evading the motor (313) near the motor (313), and the friction wheel (321) is located below the top shell (170); The side shell (180) is located on one side of the top shell (170) and extends in the direction of the swing arm (200); the engaging surface (120) is arranged on the wall surface of the side shell (180) facing the friction wheel (321).

25. The cleaning assembly according to claim 24, characterized in that The fixing frame (100) is provided with a first limiting portion (130), and the first limiting portion (130) is arranged on a side of the first rotating shaft (110) close to the friction wheel (321); The swing arm (200) is provided with a second limiting portion (210), and the second limiting portion (210) is arranged on a side of the first rotating shaft (110) away from the cleaning member; The first limiting portion (130) cooperates with the second limiting portion (210) to limit the movement of the swing arm (200) between the retracted position and the extended position.

26. The cleaning assembly according to claim 25, characterized in that The first limiting portion (130) is located at the lower part of the fixing frame (100), and the second limiting portion (210) is located at the upper part of the swing arm (200).

27. The cleaning assembly according to claim 2, characterized in that The driving member (310) comprises a rotating output shaft (311) and a driving output gear (312), wherein the driving output gear (312) is fixed to the rotating output shaft (311); The second transmission assembly (330) comprises a first rotating transmission assembly (331) and a second rotating transmission assembly (332), wherein the input end of the first rotating transmission assembly (331) is connected to the driving output gear (312), and the output end of the second rotating transmission assembly (332) is connected to the cleaning element; The second rotating transmission component (332) comprises two input ends, the rotation direction of one of the input ends of the second rotating transmission component (332) is the same clockwise as the rotation direction of the output end of the second rotating transmission component (332), and the rotation direction of the other input end is opposite to the rotation direction of the output end of the second rotating transmission component (332); the driving output gear (312) changes the rotation direction so that the output end of the first rotating transmission component (331) can be selectively connected to the two input ends of the second rotating transmission component (332).

28. The cleaning assembly according to claim 27, characterized in that The output end of the first rotating transmission component (331) is a second gear (3311); The two input ends of the second rotating transmission component (332) are respectively a third gear (3321) and a fourth gear (3322); The second gear (3311) is coaxially arranged between the third gear (3321) and the fourth gear (3322), and the second gear (3311) and the third gear (3321), as well as the second gear (3311) and the fourth gear (3322) are respectively connected via one-way bearings, and the driving output gear (312) changes the rotation direction so that the second gear (3311) can selectively drive the third gear (3321) or the fourth gear (3322) to rotate.

29. A cleaning device, characterized in that: It comprises an equipment body and a cleaning component according to any one of claims 1 to 28, wherein a fixing frame (100) of the cleaning component is installed on the equipment body.

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