Outward swinging cleaning device and scrubber

Abstract

The invention provides an outward swinging cleaning device and a scrubber. The outward swinging cleaning device comprises a rocker arm, a cleaning part, a first transmission assembly, a second transmission assembly, a third transmission assembly and a driving mechanism. The driving mechanism drives the first transmission assembly to rotate so that the cleaning piece can swing outwards or retract. The second transmission assembly is in transmission connection with the first transmission assembly, so that the cleaning piece descends in the outward swinging process and ascends in the retracting process; the third transmission assembly is in transmission connection with the first transmission assembly and the second transmission assembly so that the cleaning piece can rotate in the outward swinging or retracting process. In this way, the cleaning piece is arranged on the floor washing machine, so that absolutely zero welt and corner position cleaning is achieved; by arranging one driving mechanism, outward swinging or retracting, lifting motion and rotating motion of the cleaning piece can be achieved, and the situation that each transmission assembly is correspondingly provided with one driving mechanism is avoided, so that the cost is reduced, and the size is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of floor cleaning machines, in particular to an outward swinging cleaning device and a floor cleaning machine. BACKGROUND

[0002] When cleaning the corner position of the floor cleaning machine, for example, the side position of the wall, the main cleaning method is to use the protruding part of the bristles on the side of the roller brush. However, since the bristles are covered on the support structure of the roller brush, there is a gap of 2-3mm between the side of the roller brush and the corner position, which causes the roller brush to be unable to achieve zero edge sticking to the corner position. In addition, for low space such as the lower edge of the cabinet, the roller brush cannot be stretched into the space for cleaning due to its large size, resulting in a dead angle of health that needs to be cleaned by the user.

[0003] In order to solve the above problems of the floor cleaning machine, a floor cleaning machine with an outward swinging cloth disc appears on the market to clean the corner position. Two clicks are set to drive the outward swinging and rotation of the outward swinging cloth disc, which results in a large volume and high cost of the floor cleaning machine. SUMMARY

[0004] Therefore, the embodiments of the present application aim to provide an outward swinging cleaning device and a floor cleaning machine to solve the problems of the prior art that the floor cleaning machine cannot clean the corner position and low space, and the floor cleaning machine has a large volume and high cost.

[0005] In one aspect, the present application provides an outward swinging cleaning device for a floor cleaning machine, comprising: a rocker arm movably arranged on a floor brush of the floor cleaning machine; a cleaning member movably arranged on the rocker arm; a first transmission assembly rotatably arranged on the rocker arm to make the cleaning member swing outward or retract, wherein when the cleaning member swings outward, the cleaning member at least partially extends outward from the outer periphery of the floor brush, and when the cleaning member retracts, the cleaning member retracts into the outer periphery of the floor brush; a second transmission assembly rotatably arranged on the rocker arm and in transmission connection with the output end of the first transmission assembly to make the cleaning member descend during the outward swinging process and ascend during the retracting process; a third transmission assembly rotatably arranged on the rocker arm, wherein the input end of the third transmission assembly is in transmission connection with the output end of the first transmission assembly, and the output end of the third transmission assembly is in transmission connection with the input end of the second transmission assembly to make the cleaning member rotate during the outward swinging or retracting process; a driving mechanism arranged on the floor brush and in transmission connection with the input end of the first transmission assembly to drive the first transmission assembly to rotate.

[0006] In this application, a drive mechanism is used to drive the first transmission assembly to rotate, thereby causing the rocker arm to move relative to the floor brush. Since the cleaning component is mounted on the rocker arm, the rocker arm causes the cleaning component to swing outwards or retract. When the cleaning component swings outwards, it extends at least partially beyond the outer periphery of the floor brush, allowing it to clean the sides of the wall, achieving absolute zero-edge contact and corner cleaning. When the cleaning component retracts, it retracts into the outer periphery of the floor brush, meaning it can be completely retracted into the floor brush for storage and to avoid interfering with the brush's operation. This is achieved by setting a drive mechanism to drive the first transmission assembly to rotate, thereby causing the rocker arm to move relative to the floor brush. The second transmission component, connected to the first transmission component, allows the cleaning component to descend to contact the ground during outward swing and to rise during retraction, separating it from the ground. A third transmission component, connected to the first transmission component, ensures the cleaning component maintains rotation during both outward and retraction. After descending to contact the ground, the rotation continues to clean the floor, and the frictional torque generated by the ground's reaction force further drives the rocker arm relative to the floor brush, causing the cleaning component to swing outward. Furthermore, in this application, a single drive mechanism is used to achieve the outward or retraction, lifting, and rotational movements of the cleaning component, instead of requiring a separate drive mechanism for each transmission component, thus reducing cost and size.

[0007] In one embodiment, the first transmission assembly includes a first gear and a second gear that mesh with each other, and the drive mechanism is connected to the first gear for driving the first gear to rotate; The tangential force at the meshing point between the meshing teeth of the first gear and the meshing teeth of the second gear can drive the rocker arm to swing between the outward swing position and the retracted position around the center line of the first gear, thereby causing the cleaning component to swing outward or retract.

[0008] By setting a first gear and a second gear, the power transmission of the drive mechanism is realized. Furthermore, the speed of the cleaning part swinging out or retracting can be adjusted by adjusting the transmission ratio of the first gear and the second gear. When the first gear and the second gear mesh, the first gear applies a normal force to the second gear along the common normal direction of the meshing point. The component of this normal force along the tangent direction of the pitch circle of the first gear or the second gear is a tangential force. Since the second gear is fixed relative to the rocker arm along the swing direction of the rocker arm, this tangential force can drive the rocker arm to swing between the swing position and the retracted position around the center line of the first gear, thereby causing the cleaning part to swing out or retract.

[0009] In one embodiment, the driving mechanism includes a drive motor, the output shaft of which is connected to the first gear, and the axis of the output shaft is perpendicular to the centerline of the first gear. The externally swinging cleaning device further includes a fourth transmission component, which is rotatably mounted on the rocker arm; the fourth transmission component includes a worm and a turbine or helical gear that is connected to the worm; the output shaft is connected to the worm, the turbine or the helical gear is connected to the first gear, and the center line of the turbine or the helical gear coincides with the center line of the first gear.

[0010] The cleaning component is swung outward by the forward rotation of the drive motor, and descends during the outward swing. Conversely, the cleaning component retracts and rises during the retraction. The rotation directions of the cleaning component are opposite during forward and reverse rotation. The drive motor drives the first gear to rotate. Due to the limited space under the floor brush, the output shaft of the drive motor is perpendicular to the centerline of the first gear to accommodate the outward-swinging cleaning device. That is, the output shaft of the drive motor is horizontal, and the centerline of the first gear is vertical. This achieves power transmission to drive the cleaning component while reducing the overall vertical size of the outward-swinging cleaning device, allowing it to be housed under the floor brush. A fourth transmission component is provided to form a spatial transmission mechanism, stabilizing the horizontal rotational power output from the drive motor into vertical power output and transmitting it to the first gear. This achieves a power direction conversion, making the outward-swinging cleaning device more compact and allowing it to be housed under the floor brush.

[0011] In one embodiment, the swing-out cleaning device further includes a first connecting shaft and a second connecting shaft passing through the rocker arm, the rocker arm being able to swing around the first connecting shaft; the first gear being spaced and sleeved on the first connecting shaft and rotating around the first connecting shaft; the second gear being sleeved on the second connecting shaft and being able to rotate relative to the second connecting shaft.

[0012] By setting a first connecting shaft to install and position a first gear, and configuring the first gear to rotate about the first connecting shaft, and by driving the first gear to rotate, the rocker arm can swing about the first connecting shaft, thereby causing the rocker arm to swing outward or retract. By setting a second connecting shaft to install and position a second gear, and the second gear can rotate relative to the second connecting shaft, so that the tangential force applied by the first gear to the second gear can drive the rocker arm to swing about the first connecting shaft between the outward swing position and the retracted position, thereby causing the cleaning part to swing outward or retract.

[0013] In one embodiment, the second transmission component includes a first transmission member and a second transmission member connected by transmission. The output end of the third transmission component drives the first transmission member to rotate around its own center line. The second transmission member is fixedly connected to the cleaning member. The first transmission member rotates to drive the second transmission member to rotate while moving along a first direction or a second direction opposite to the first direction, so as to drive the cleaning member to rotate while rising along the first direction or falling along the second direction. Wherein, the first direction is parallel to the center line of the first transmission member; when the cleaning member moves along the first direction to contact the ground, the cleaning member rotates to clean the ground and / or wall, and the reaction force of the ground and / or wall on the cleaning member causes the rocker arm to swing toward the outward position.

[0014] By setting a second transmission component and a third transmission component that is connected to the second transmission component, the first transmission component rotates. The first transmission component drives the second transmission component to rotate while moving along a first or second direction. Since the second transmission component is fixedly connected to the cleaning component, it drives the cleaning component to rotate while rising in the first direction or falling in the second direction. When the cleaning component falls in the first direction to contact the ground, it can clean the ground due to its rotation. When the user moves the position of the floor scrubber, the side of the cleaning component can also contact the wall at the same time to clean the wall. Since there is friction when the cleaning component contacts the ground, the reaction force of the ground and / or the wall on the cleaning component allows the rocker arm to swing further outward.

[0015] In one embodiment, the outer peripheral surface of the first transmission member is provided with an external thread structure, and the inner peripheral surface of the second transmission member is provided with an internal thread structure. When the first transmission member rotates around its own center line, the external thread structure meshes with the internal thread structure to drive the second transmission member to rise in the first direction or fall in the second direction. Wherein, at least one of the external thread structure and the internal thread structure is a continuous thread, and the other is a continuous thread or at least a discontinuous thread.

[0016] By setting up an engaging external thread structure and an internal thread structure, the rotation of the first transmission component can drive the second transmission component to rise in the first direction or fall in the second direction, thereby converting the rotational motion of the first transmission component into the rotational motion and linear motion of the second transmission component. Furthermore, the engagement process of the thread structure is a continuous and progressive contact, which makes the power transmission smoother and the noise lower, making it more suitable for household scenarios such as floor scrubbers.

[0017] In one embodiment, the third transmission component includes a third gear and a fourth gear that are connected in transmission, the second gear meshing with the third gear, and the fourth gear being fixedly connected to the first transmission member to drive the first transmission member to rotate around its own center line.

[0018] By setting a third and a fourth gear, the power of the first transmission component is transmitted to the second transmission component, thereby realizing power transmission. At the same time, the third transmission component is set as a gear transmission, which also facilitates the adjustment of the movement speed of the cleaning component.

[0019] In one embodiment, the externally mounted cleaning device further includes a fixing member, the fixing member being fixed to the floor brush, the driving mechanism being disposed on the fixing member, and the rocker arm being swayably disposed on the fixing member; the fixing member is provided with a first magnetic attraction member, and the rocker arm is provided with a second magnetic attraction member; When the rocker arm is in the outward swing position, the first magnetic attractor and the second magnetic attractor separate; when the rocker arm is in the retracted position, the first magnetic attractor and the second magnetic attractor engage through magnetic attraction.

[0020] By setting a fixing component to install the drive mechanism and rocker arm; by setting a first magnetic suction component and a second magnetic suction component, when the rocker arm is in the retracted position, the magnetic attraction of the first magnetic suction component and the second magnetic suction component will limit the rocker arm and prevent it from shaking when the floor scrubber moves.

[0021] In one embodiment, the fixing member is provided with a stop member, which is used to limit the swing angle of the rocker arm when the rocker arm drives the cleaning member to extend at least partially out of the outer periphery of the floor brush, so that the rocker arm swings between the outward swing position and the retracted position.

[0022] By setting a stop, when the rocker arm swings to the outward swing position, the rocker arm abuts against the stop, so that the rocker arm stops swinging, thereby limiting the swing angle of the rocker arm.

[0023] This application also provides a floor scrubber, including a floor brush and the external cleaning device described in the above embodiments, wherein the external cleaning device is disposed on the floor brush.

[0024] In one embodiment, the cleaning component of the external cleaning device is a cloth tray. Attached Figure Description

[0025] Figure 1 The diagram shown is a structural schematic of a cleaning component extending outwards from the floor brush in one embodiment of this application.

[0026] Figure 2 The diagram shown is a structural schematic of the cleaning component retracting into the floor brush in one embodiment of this application.

[0027] Figure 3 The diagram shown is a structural schematic of the rocker arm of the externally swinging cleaning device in an embodiment of this application, located in the externally swinging position.

[0028] Figure 4 The image shown is of this application. Figure 3 A schematic diagram of the front view of the central and external cleaning device.

[0029] Figure 5 The image shown is of this application. Figure 4 A schematic diagram of the AA cross-sectional view of the center-outer swing cleaning device.

[0030] Figure 6 The diagram shown is a top view of the rocker arm of the externally swinging cleaning device in the retracted position according to an embodiment of this application.

[0031] Figure 7 The figure shown is a top view of the rocker arm of the externally swinging cleaning device in the retracted position according to an embodiment of this application.

[0032] Figure 8 The diagram shown is a cross-sectional view of the rocker arm of the externally swinging cleaning device in the retracted position according to an embodiment of this application.

[0033] Figure label: 10. Externally mounted cleaning device; 11. Rocker arm; 12. Cleaning component; 13. First transmission assembly; 131. First gear; 132. Second gear; 14. Second transmission assembly; 141. First transmission component; 142. Second transmission component; 1421. Internal thread structure; 15. Third transmission assembly; 151. Third gear; 152. Fourth gear; 16. Drive motor; 17. Fourth transmission assembly; 171. Worm gear; 172. Helical gear; 18. First connecting shaft; 19. Second connecting shaft; 21. Fixing component; 22. First magnetic component; 23. Second magnetic component; 24. Stop component; 25. Third connecting shaft; 30. Floor brush; X1. First direction; X2. Second direction. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] See Figures 1 to 5This application provides an embodiment of an outward-swinging cleaning device 10 for a floor scrubber. The outward-swinging cleaning device 10 includes a rocker arm 11, a cleaning component 12, a first transmission assembly 13, a second transmission assembly 14, a third transmission assembly 15, and a drive mechanism. Specifically, the rocker arm 11 is movably mounted on the floor brush 30 of the floor scrubber; the cleaning component 12 is movably mounted on the rocker arm 11; the first transmission assembly 13 is rotatably mounted on the rocker arm 11, so that the cleaning component 12 swings outward or retracts. When swinging outward, the cleaning component 12 at least partially extends beyond the outer periphery of the floor brush 30 (see [reference]). Figure 1 When retracted, the cleaning component 12 retracts into the outer periphery of the floor brush 30 (see...). Figure 2 The second transmission component 14 is rotatably mounted on the rocker arm 11 and is drivenly connected to the output end of the first transmission component 13, so that the cleaning component 12 descends during outward swing and rises during retraction; the third transmission component 15 is rotatably mounted on the rocker arm 11, and the input end of the third transmission component 15 is drivenly connected to the output end of the first transmission component 13, and the output end of the third transmission component 15 is drivenly connected to the input end of the second transmission component 14, so that the cleaning component 12 rotates during outward swing or retraction; the drive mechanism is mounted on the floor brush 30 and is drivenly connected to the input end of the first transmission component 13, for driving the first transmission component 13 to rotate.

[0036] In this application, a drive mechanism is used to drive the first transmission assembly 13 to rotate, thereby causing the rocker arm 11 to move relative to the floor brush 30. Since the cleaning component 12 is mounted on the rocker arm 11, the rocker arm 11 drives the cleaning component 12 to swing outwards or retract. When the cleaning component 12 swings outwards, it extends at least partially beyond the outer periphery of the floor brush 30, allowing it to clean the side edges of the wall, achieving absolute zero contact with edges and corners. When the cleaning component 12 retracts, it retracts into the outer periphery of the floor brush 30, meaning it can be completely retracted into the floor brush 30 for storage and to avoid affecting the operation of the floor brush 30. By setting a drive mechanism relative to the first transmission assembly 13, the cleaning component 12 can be rotated to drive the first transmission assembly 13 to rotate, thereby driving the rocker arm 11 to move relative to the floor brush 30. A first transmission assembly 13 is connected to a second transmission assembly 14, enabling the cleaning component 12 to descend to contact the ground during outward swing and to rise during retraction, thus separating the cleaning component 12 from the ground. Furthermore, a third transmission assembly 15, connected to the first transmission assembly 13, ensures that the cleaning component 12 maintains rotation during both outward swing and retraction. After descending to contact the ground, the rotation of the cleaning component 12 continues to clean the ground, and the frictional torque generated by the reaction force of the ground on the cleaning component 12 further drives the rocker arm 11 to move relative to the ground brush 30, causing the cleaning component 12 to swing outward. Additionally, in this application, a single drive mechanism is used to achieve the outward swing or retraction, lifting, and rotational movements of the cleaning component 12, instead of requiring a separate drive mechanism for each transmission assembly, thereby reducing cost and size.

[0037] See Figures 5 to 8 In some embodiments, the first transmission assembly 13 includes a first gear 131 and a second gear 132 that mesh with each other. The drive mechanism is connected to the first gear 131 for driving the first gear 131 to rotate. The tangential force between the meshing teeth of the first gear 131 and the meshing teeth of the second gear 132 at the meshing point can drive the rocker arm 11 to swing between an outward swing position and a retracted position around the center line of the first gear 131, so as to drive the cleaning component 12 to swing outward or retract.

[0038] By setting the first gear 131 and the second gear 132, the power transmission of the drive mechanism is realized. Furthermore, the speed of the cleaning component 12 swinging out or retracting can be adjusted by adjusting the transmission ratio of the first gear 131 and the second gear 132. When the first gear 131 and the second gear 132 mesh, the first gear 131 applies a normal force to the second gear 132 along the common normal direction of the meshing point. The component of this normal force along the tangent direction of the pitch circle of the first gear 131 or the second gear 132 is a tangential force. Since the second gear 132 is fixed relative to the rocker arm 11 along the swing direction of the rocker arm 11, this tangential force can drive the rocker arm 11 to swing between the swing position and the retracted position around the center line of the first gear 131, thereby causing the cleaning component 12 to swing out or retract.

[0039] See Figures 5 to 8 In some embodiments, the drive mechanism includes a drive motor 16, the output shaft of which is drivenly connected to the first gear 131, and the axis of the output shaft is perpendicular to the centerline of the first gear 131; the outward-swinging cleaning device 10 further includes a fourth transmission assembly 17, rotatably disposed on the rocker arm 11; the fourth transmission assembly 17 includes a worm gear 171 and a turbine or helical gear 172 drivenly connected to the worm gear 171; the output shaft is drivenly connected to the worm gear 171, the turbine or helical gear 172 is drivenly connected to the first gear 131, and the centerline of the turbine or helical gear 172 coincides with the centerline of the first gear 131. In one embodiment of this application, the fourth transmission assembly 17 includes a helical gear 172.

[0040] The cleaning component 12 is swung outward by the forward rotation of the drive motor 16, and the cleaning component 12 descends during the outward swing. The cleaning component 12 is retracted by the reverse rotation of the drive motor 16, and the cleaning component 12 rises during the retraction. The rotation direction of the cleaning component 12 is opposite when the drive motor 16 rotates forward and reverse. The drive motor 16 is configured to drive the first gear 131 to rotate. Due to the limited space below the floor brush 30, in order to assemble the outward swing cleaning device 10, in this application, the axis of the output shaft of the drive motor 16 is perpendicular to the center line of the first gear 131. That is, the output of the drive motor 16 is perpendicular to the center line of the first gear 131. The shaft is arranged horizontally, and the center line of the first gear 131 is arranged vertically. While realizing the power transmission to drive the cleaning component 12, it can also reduce the overall size of the external swing cleaning device 10 in the vertical direction, so that the external swing cleaning device 10 can be housed under the floor brush 30. By setting the fourth transmission component 17 to form a spatial transmission cooperation, the horizontal rotational power output by the drive motor 16 is stably converted into vertical power output and transmitted to the first gear 131, thereby realizing the power direction conversion, so that the structure of the external swing cleaning device 10 is more compact and can be housed under the floor brush 30.

[0041] See Figures 5 to 8 In some embodiments, the externally swinging cleaning device 10 further includes a first connecting shaft 18 and a second connecting shaft 19 passing through the rocker arm 11, the rocker arm 11 being swayable around the first connecting shaft 18; a first gear 131 is spaced and sleeved on the first connecting shaft 18 and rotates around the first connecting shaft 18; a second gear 132 is sleeved on the second connecting shaft 19 and is rotatable relative to the second connecting shaft 19. In this embodiment, the second gear 132 and the second connecting shaft 19 are clearance-fitted, and friction is reduced by applying lubricating oil to the gearbox.

[0042] Optionally, the rocker arm 11 is connected to the first connecting shaft 18 via a bearing, and the second gear 132 is connected to the second connecting shaft 19 via a bearing.

[0043] By setting a first connecting shaft 18 to install and position a first gear 131, and configuring the first gear 131 to rotate around the first connecting shaft 18, and by driving the first gear 131 to rotate, the rocker arm 11 can swing around the first connecting shaft 18, thereby causing the rocker arm 11 to swing outward or retract. By setting a second connecting shaft 19 to install and position a second gear 132, and the second gear 132 can rotate relative to the second connecting shaft 19, so that the tangential force applied by the first gear 131 to the second gear 132 can drive the rocker arm 11 to swing between the outward and retracted positions around the first connecting shaft 18 through the second connecting shaft 19, thereby causing the cleaning component 12 to swing outward or retract.

[0044] See Figure 3 and Figure 8 In some embodiments, the second transmission assembly 14 includes a first transmission member 141 and a second transmission member 142 connected by transmission. The output end of the third transmission assembly 15 drives the first transmission member 141 to rotate around its own center line. The second transmission member 142 is fixedly connected to the cleaning member 12. The first transmission member 141 rotates to drive the second transmission member 142 to rotate while moving along a first direction X1 or a second direction X2 opposite to the first direction X1, so as to drive the cleaning member 12 to rotate while rising along the first direction X1 or falling along the second direction X2. The first direction X1 is parallel to the center line of the first transmission member 141. When the cleaning member 12 moves along the first direction X1 to contact the ground, the cleaning member 12 rotates to clean the ground and / or wall, and the reaction force of the ground and / or wall on the cleaning member 12 causes the rocker arm 11 to swing toward the outward swing position.

[0045] By setting a second transmission component 14 and a third transmission component 15 connected to the second transmission component 14, the first transmission component 141 rotates. The first transmission component 141 drives the second transmission component 142 to rotate while moving along the first direction X1 or the second direction X2. Since the second transmission component 142 is fixedly connected to the cleaning component 12, it drives the cleaning component 12 to rotate while rising along the first direction X1 or falling along the second direction X2. When the cleaning component 12 falls along the first direction X1 to contact the ground, the cleaning component 12 rotates, enabling it to clean the ground. When the user moves the position of the floor scrubber, the side of the cleaning component 12 can also contact the wall at the same time to clean the wall. Since there is friction when the cleaning component 12 contacts the ground, the reaction force of the ground and / or the wall on the cleaning component 12 allows the rocker arm 11 to swing further outward.

[0046] See Figure 8 In some embodiments, the outer peripheral surface of the first transmission member 141 is provided with an external thread structure (not shown in the figure), and the inner peripheral surface of the second transmission member 142 is provided with an internal thread structure 1421. When the first transmission member 141 rotates around its own center line, the external thread structure and the internal thread structure 1421 mesh with each other to drive the second transmission member 142 to rise along the first direction X1 or fall along the second direction X2. Among them, at least one of the external thread structure and the internal thread structure 1421 is a continuous thread, and the other is a continuous thread or at least a discontinuous thread.

[0047] Specifically, in one embodiment of this application, the external thread structure is a multi-segment intermittent thread, and the internal thread structure 1421 is a continuous thread.

[0048] By setting up an external thread structure and an internal thread structure 1421 for meshing, the rotation of the first transmission member 141 can drive the second transmission member 142 to rise along the first direction X1 or fall along the second direction X2, thereby converting the rotational motion of the first transmission member 141 into the rotational motion and linear motion of the second transmission member 142. Furthermore, the meshing process of the thread structure is a continuous and progressive contact, which makes the power transmission smoother and the noise lower, making it more suitable for household scenarios such as floor scrubbers.

[0049] See Figures 5 to 8 In some embodiments, the third transmission assembly 15 includes a third gear 151 and a fourth gear 152 that are connected in transmission. The second gear 132 meshes with the third gear 151, and the fourth gear 152 is fixedly connected to the first transmission member 141 to drive the first transmission member 141 to rotate around its own center line.

[0050] By setting the third gear 151 and the fourth gear 152, the power of the first transmission assembly 13 is transmitted to the second transmission assembly 14, thereby realizing power transmission. At the same time, the third transmission assembly 15 is set as a gear transmission, which also facilitates the adjustment of the movement speed of the cleaning component 12.

[0051] See Figures 5 to 8 Specifically, in one embodiment, the externally swinging cleaning device 10 further includes a third connecting shaft 25 passing through the rocker arm 11, a third gear 151 sleeved on the third connecting shaft 25, and the third gear 151 is rotatable relative to the third connecting shaft 25. In this embodiment, the third gear 151 and the third connecting shaft 25 are in clearance fit, and friction is reduced by applying lubricating oil to the gearbox.

[0052] Optionally, the third gear 151 is connected to the third connecting shaft 25 via a bearing.

[0053] By setting a third connecting shaft 25, a third gear 151 is installed and positioned, and the third gear 151 can rotate relative to the third connecting shaft 25 to achieve power transmission.

[0054] See Figure 6 and Figure 8 In some embodiments, the outward-swinging cleaning device 10 further includes a fixing member 21, which is fixed to the floor brush 30. The driving mechanism is disposed on the fixing member 21, and the rocker arm 11 is swayably disposed on the fixing member 21. The fixing member 21 is provided with a first magnetic suction member 22, and the rocker arm 11 is provided with a second magnetic suction member 23. When the rocker arm 11 is in the outward-swinging position, the first magnetic suction member 22 and the second magnetic suction member 23 are separated. When the rocker arm 11 is in the retracted position, the first magnetic suction member 22 and the second magnetic suction member 23 are magnetically attracted together.

[0055] By setting the fixing part 21, the drive mechanism and the rocker arm 11 are installed; by setting the first magnetic suction part 22 and the second magnetic suction part 23, when the rocker arm 11 is in the retracted position, the rocker arm 11 is limited by the magnetic attraction of the first magnetic suction part 22 and the second magnetic suction part 23, so as to prevent the rocker arm 11 from shaking when the floor scrubber moves.

[0056] When the cleaning member 12 extends at least partially beyond the outer periphery of the floor brush 30, the first magnetic member 22 and the second magnetic member 23 separate; when the cleaning member 12 retracts into the outer periphery of the floor brush 30, the first magnetic member 22 and the second magnetic member 23 engage with each other through magnetic attraction.

[0057] Specifically, at least one of the first magnetic attractor 22 and the second magnetic attractor 23 is a magnet, and the other is a magnet or a ferromagnetic metal part, which can be selected as a magnetic metal part such as iron or steel.

[0058] See Figure 5 In some embodiments, the fixing member 21 is provided with a stop member 24. When the rocker arm 11 drives the cleaning member 12 to extend at least partially out of the outer periphery of the floor brush 30, the stop member 24 is used to limit the swing angle of the rocker arm 11 so that the rocker arm 11 swings between the outward swing position and the retracted position.

[0059] By setting a stop 24, when the rocker arm 11 swings to the outward swing position, the rocker arm 11 abuts against the stop 24, so that the rocker arm 11 stops swinging, thereby limiting the swing angle of the rocker arm 11.

[0060] For details, please refer to Figures 5 to 7 ,exist Figure 5 In the middle, drive motor 16 reverses, as... Figure 5As indicated by the arrow, under the drive of the drive motor 16, the first gear 131 rotates clockwise, the second gear 132 rotates counterclockwise, the third gear 151 rotates clockwise, the fourth gear 152 rotates counterclockwise, and the cleaning component 12 rotates counterclockwise. The normal force Fn1 applied by the meshing teeth of the first gear 131 to the meshing teeth of the second gear 132 at the meshing point can be decomposed into a radial force Fr1 and a tangential force Ft1. The tangential force Ft1 of the meshing teeth of the first gear 131 to the meshing teeth of the second gear 132 can make the rocker arm 11 swing from the outward position to the retracted position.

[0061] exist Figure 6 and Figure 7 In the middle, drive motor 16 rotates forward, such as Figure 6 and Figure 7 As indicated by the middle arrow, driven by the drive motor 16, the first gear 131 rotates counterclockwise, the second gear 132 rotates clockwise, the third gear 151 rotates counterclockwise, the fourth gear 152 rotates clockwise, and the cleaning component 12 rotates clockwise. Figure 7 In the process, the normal force Fn2 applied by the meshing teeth of the first gear 131 to the meshing teeth of the second gear 132 at the meshing point can be decomposed into radial force Fr2 and tangential force Ft2. The tangential force Ft2 of the meshing teeth of the first gear 131 to the meshing teeth of the second gear 132 can overcome the magnetic force between the first magnetic attractor 22 and the second magnetic attractor 23, thereby causing the rocker arm 11 to swing from the retracted position to the outward swing position. It should be noted that when the tangential force Ft2 of the meshing teeth of the first gear 131 on the meshing teeth of the second gear 132 is insufficient to overcome the magnetic force between the first magnetic attractor 22 and the second magnetic attractor 23, under the drive of the drive motor 16, the cleaning component 12 first descends along the second direction X2 until the cleaning component 12 contacts the ground and / or the wall. Through the frictional torque of the ground on the cleaning component 12 and / or the frictional force of the wall on the cleaning component 12, the cleaning component 12 is further driven to swing outward, thereby ensuring that the cleaning component 12 can swing outward.

[0062] This application also provides a floor scrubber, including a floor brush 30 and an external cleaning device 10 as described in the above embodiments, wherein the external cleaning device 10 is disposed on the floor brush 30.

[0063] In some embodiments, the cleaning component 12 of the external cleaning device 10 is a cloth tray.

[0064] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications or equivalent substitutions made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An oscillating cleaning device, characterized in that The outer swing cleaning device comprises: a rocker arm movably arranged on a floor brush of the scrubber; a cleaning member movably arranged on the rocker arm; a first transmission assembly rotatably arranged on the rocker arm to make the cleaning member swing out or retract, when swinging out, the cleaning member at least partially extends out of the outer periphery of the floor brush, when retracting, the cleaning member retracts into the outer periphery of the floor brush; a second transmission assembly rotatably arranged on the rocker arm and transmissionally connected with an output end of the first transmission assembly to make the cleaning member descend during the swinging-out process and ascend during the retracting process; a third transmission assembly rotatably arranged on the rocker arm, an input end of the third transmission assembly is transmissionally connected with the output end of the first transmission assembly, and an output end of the third transmission assembly is transmissionally connected with an input end of the second transmission assembly to make the cleaning member rotate during the swinging-out or retracting process; a driving mechanism arranged on the floor brush and transmissionally connected with an input end of the first transmission assembly to drive the first transmission assembly to rotate.

2. An oscillating cleaning device according to claim 1, characterized in that The first transmission assembly comprises a first gear and a second gear in mesh transmission, the driving mechanism is transmissionally connected with the first gear to drive the first gear to rotate; a tangential force of meshing gear teeth of the first gear to meshing gear teeth of the second gear at a meshing point can drive the rocker arm to swing around a center line of the first gear between a swinging-out position and a retracting position to drive the cleaning member to swing out or retract.

3. An oscillating cleaning device according to claim 2, wherein, The driving mechanism comprises a driving motor, an output shaft of the driving motor is transmissionally connected with the first gear, and an axis of the output shaft is perpendicular to the center line of the first gear; The outer swing cleaning device further comprises a fourth transmission assembly rotatably arranged on the rocker arm; the fourth transmission assembly comprises a worm and a turbine or a helical gear transmissionally connected with the worm; the output shaft is transmissionally connected with the worm, the turbine or the helical gear is transmissionally connected with the first gear, and a center line of the turbine or the helical gear coincides with the center line of the first gear.

4. The off-set cleaning device of claim 2, wherein, The outer swing cleaning device further comprises a first connecting shaft and a second connecting shaft penetrating the rocker arm, the rocker arm can swing around the first connecting shaft; the first gear is spacedly sleeved on the first connecting shaft and rotates around the first connecting shaft; the second gear is sleeved on the second connecting shaft, and the second gear can rotate relative to the second connecting shaft.

5. The off-set cleaning device of claim 1, wherein, The second transmission assembly comprises a first transmission member and a second transmission member in transmission connection, the output end of the third transmission assembly drives the first transmission member to rotate around its center line, the second transmission member is fixedly connected with the cleaning member, the first transmission member rotates to drive the second transmission member to rotate and move in a first direction or a second direction opposite to the first direction, to drive the cleaning member to rotate and ascend in the first direction or descend in the second direction; The first direction is parallel to the center line of the first transmission member; when the cleaning member moves to contact the ground along the first direction, the cleaning member rotates to clean the ground and / or wall surface, and the reaction force of the ground and / or wall surface on the cleaning member makes the swing arm swing towards the outer swing position.

6. An oscillating cleaning device according to claim 5, wherein An outer thread structure is arranged on the outer circumferential surface of the first transmission member, and an inner thread structure is arranged on the inner circumferential surface of the second transmission member; when the first transmission member rotates around its center line, the outer thread structure and the inner thread structure are engaged to drive the second transmission member to ascend along the first direction or descend along the second direction. At least one of the outer thread structure and the inner thread structure is a continuous thread, and the other is a continuous thread or at least one section of discontinuous thread.

7. The off-set cleaning device of claim 5, wherein, The third transmission assembly includes a third gear and a fourth gear connected in transmission, the second gear is engaged with the third gear in transmission, and the fourth gear is fixedly connected with the first transmission member to drive the first transmission member to rotate around its center line.

8. The off-set cleaning device of claim 1, wherein, The outer swing cleaning device further includes a fixing member fixedly arranged on the floor brush, the driving mechanism is arranged on the fixing member, and the swing arm is swingably arranged on the fixing member; the fixing member is provided with a first magnetic attraction member, and the swing arm is provided with a second magnetic attraction member. When the swing arm is located at the outer swing position, the first magnetic attraction member is separated from the second magnetic attraction member; when the swing arm is located at the retracted position, the first magnetic attraction member is attracted and matched with the second magnetic attraction member by magnetic force.

9. An oscillating cleaning device according to claim 8, wherein, The fixing member is provided with a stopper, when the swing arm drives the cleaning member to at least partially extend out of the outer circumferential side of the floor brush, the stopper is used to limit the swing angle of the swing arm, so that the swing arm swings between the outer swing position and the retracted position.

10. A scrubber, characterized in that The outer swing cleaning device includes a floor brush and a swing cleaning device according to any one of claims 1-9, and the swing cleaning device is arranged on the floor brush.

11. The scrubber of claim 10, wherein, The cleaning member of the outer swing cleaning device is a cloth disc.

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