Transmission and cleaning devices

Abstract

A transmission and cleaning device (10) comprising a swing arm (2) and a rotary cleaning unit (1), wherein one end of the swing arm (2) is rotatably connected to the body of the cleaning device (10) and the other end is connected to the rotary cleaning unit (1), the swing arm (2) drives the rotary cleaning unit (1) to move between a first position and a second position, the area in which at least a portion of the rotary cleaning unit (1) is located outside the projection area of ​​the cleaning device (10) when the rotary cleaning unit (1) is located is greater than the area in which at least a portion of the rotary cleaning unit (1) is located outside the projection area of ​​the cleaning device (10) when the rotary cleaning unit (1) is located in the first position, and the direction of rotation of the swing arm (2) is the same as the direction of rotation of the rotary cleaning unit (1) when the rotary cleaning unit (1) moves from the first position to the second position. By setting the rotation direction of the swing arm (2) and the rotary cleaning unit (1) to the same direction, the torque generated by the friction between the rotary cleaning unit (1) and the surface to be cleaned can be used as an assisting force for the rotary cleaning unit (1) to retract, thereby allowing the rotary cleaning unit (1) to easily retract when it comes into contact with an obstacle.

Description

Technical Field

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[0001] [Cross - reference to Related Applications] This application claims the priority of Chinese Patent Application No. 202311084862.2 filed on August 25, 2023, and the entire content disclosed in the above - mentioned Chinese Patent Application is incorporated herein by reference.

[0002] This application belongs to the technical field of smart homes, and specifically relates to a transmission device and a cleaning device.

Background Art

[0003] With the iterative update and development of technology, self - cleaning devices have already entered the lives of ordinary families and are gradually becoming popular.

[0004] Among current self - cleaning devices, some have a mopping function. However, their transmission structure has a simple design and single function. It only rotates the mop for cleaning, so the position of the mop is relatively fixed and located at the bottom of the housing. The horizontal direction is blocked by the housing. Due to the limitation of the housing, the current self - cleaning device cannot clean the cleaning target surface in the corner, which affects the cleaning effect.

Summary of the Invention

Problems to be Solved by the Invention

[0005] Therefore, the technical problem to be solved by this application is to provide a transmission device and a cleaning device. Among them, the transmission device can drive a rotating cleaning unit to move between a first position and a second position, thereby increasing the area where the rotating cleaning unit extends from the main body projection area of the cleaning device and improving the cleaning effect.

[0006] To solve the aforementioned problems, one aspect of the present invention provides a transmission device applicable to a cleaning device, the transmission device comprising a swing arm and a rotary cleaning unit, the swing arm being rotatably connected at one end to the body of the cleaning device and at the other end to the rotary cleaning unit, and the swing arm being used to drive the rotary cleaning unit to move between a first position and a second position.

[0007] Of these, the area in which at least a portion of the rotating cleaning unit is located outside the projection area of ​​the cleaning device when the rotating cleaning unit is located in the second position is greater than the area in which at least a portion of the rotating cleaning unit is located outside the projection area of ​​the cleaning device when the rotating cleaning unit is located in the first position, and when the rotating cleaning unit moves from the first position to the second position, the rotation direction of the swing arm is the same as the rotation direction of the rotating cleaning unit.

[0008] Selectively, the rotation direction of the swing arm is the same as the rotation direction of the rotating cleaning unit, specifically, The direction of rotation is clockwise.

[0009] Selectively, the rotation direction of the swing arm is the rotation direction of the rotating cleaning unit. It is the same as the direction, and specifically, The direction of rotation is counterclockwise.

[0010] Selectively, the transmission further includes a first drive assembly and an elastic member, the elastic member being connected to the swing arm, and the first drive assembly engaging with the elastic member to rotate the swing arm, thereby moving the rotating cleaning unit between a first position and a second position.

[0011] Selectively, the first end of the elastic member is connected to the swing arm, and the second end of the elastic member is fixedly mounted relative to the body of the cleaning device.

[0012] Selectively, the transmission further includes a first cam, the first cam being mounted on one end of the swing arm away from the rotating cleaning unit, and the first drive assembly contacts the protrusion of the first cam as the rotating cleaning unit moves from the second position toward the first position.

[0013] Selectively, the elastic member is a tension spring, the first end of the tension spring is connected to the first cam, and the second end of the tension spring is fixed relative to the body of the cleaning device. Alternatively, the elastic member is a torsion spring, the torsion spring is mounted on the rotation axis of the first cam, the first end of the torsion spring is connected to the first cam, and the second end of the torsion spring is fixed relative to the body of the cleaning device. Alternatively, the elastic member is an elastic sheet, the first end of which is connected to the first cam, and the second end of which is fixed relative to the body of the cleaning device.

[0014] Selectively, the first end of the elastic member is connected to the first cam, and / or The first end of the elastic member is connected to the swing arm.

[0015] Selectively, the first cam is provided with a connecting portion on its circumferential side, and the elastic member is connected to the first cam via the connecting portion.

[0016] When the first cam is selectively rotated along a first direction by the drive of the first drive assembly, the rotating cleaning unit moves from the second position toward the first position.

[0017] When the first cam is selectively rotated along the second direction by the action of the elastic member, the rotating cleaning unit moves from the first position toward the second position.

[0018] When the rotating cleaning unit selectively moves from the second position toward the first position, the elastic member accumulates elastic energy through the driving of the first drive assembly.

[0019] The elastic energy of the elastic member is released selectively when the rotating cleaning unit moves from the first position to the second position.

[0020] Selectively, the first drive assembly includes a first drive unit and a second cam, the first drive unit being connected to the second cam and driven to rotate the second cam. The second cam is used to contact the first cam and move the first cam to rotate it.

[0021] Selectively, the second cam is installed at the output terminal of the first drive unit so that the first drive unit moves to rotate the second cam. or The output terminal of the first drive unit is power-driven to the second cam.

[0022] Selectively, the second cam includes a fan-shaped tooth portion and a contact portion, the first drive portion meshes with the fan-shaped tooth portion, the contact portion contacts the first cam, and the first cam is mounted coaxially with the swing arm.

[0023] Optionally, the first driving part includes a telescopic driving member and a transmission gear. The telescopic driving member is connected to the transmission gear. By engaging with the sector gear part, the transmission gear moves the telescopic driving member, and through the transmission gear and the sector gear part, the contact part pushes the first cam to rotate, and the swing arm rotates synchronously to move the rotary cleaning unit in the direction from the second position to the first position.

[0024] Optionally, when the rotary cleaning unit is in the second position, the second cam is separated from the first cam.

[0025] Optionally, wear-resistant layers are installed on the outer walls of the first cam and the second cam.

[0026] Optionally, a roller is installed on the second cam, and the second cam abuts against the first cam through the roller.

[0027] Another aspect of the present application provides a cleaning device including the transmission device.

[0028] <0​​​​​​​​​​Selectively, the position detection device includes a first photoelectric switch and a second photoelectric switch distributed on both sides of the second cam, the second cam further includes a first baffle and a second baffle distributed on both sides of the contact portion, the first baffle being inserted into the first photoelectric switch and used to cause the first photoelectric switch to change the detection signal, and the second baffle being inserted into the second photoelectric switch and used to cause the second photoelectric switch to change the detection signal.

[0031] Selectively, the cleaning device, The telescopic drive member further includes a rotation angle detection device installed on the telescopic drive member and used to detect the rotation angle of the output shaft of the telescopic drive member, and the telescopic drive member further includes the rotation angle detection device The device rotates or stops rotating based on the detection result.

[0032] Selectively, a first position restricting member and a second position restricting member are installed on the circumferential side of the first cam, the first position restricting member being located on the side of the protrusion away from the contact portion and used to restrict the rotation of the first cam by contacting the protrusion, and the second position restricting member being located on the side of the connection portion away from the contact portion and used to restrict the rotation of the first cam by contacting the connection portion.

[0033] Selectively, the cleaning device further includes a second drive assembly, which is connected to the rotary cleaning unit and used to drive the rotary cleaning unit up and down.

[0034] Selectively, the second drive assembly is further used to move the rotary cleaning unit to vibrate and / or rotate about its own central axis as the center of rotation.

[0035] Selectively, the second drive assembly, The system includes a lifting drive unit and a connecting device, at least a portion of which is installed within the swing arm and connected to the rotary cleaning unit, and the lifting drive unit drives the rotary cleaning unit to move up and down and rotate via the connecting device.

[0036] Selectively, the connecting device, The system includes a power-connected worm, gear set, and sleeve, wherein the worm is power-connected to the lifting drive unit, the gear set is installed within the swing arm, the sleeve is connected to the rotary cleaning unit, and the worm drives the sleeve via the gear set to move the rotary cleaning unit up and down and rotate.

[0037] Selectively, the gear set is It includes a turbine, a first subgear, a second subgear, a third subgear, and a connecting tube. The turbine and the first subgear are mounted coaxially, the turbine is located outside the swing arm and meshes with the worm, the first subgear, the second subgear, and the third subgear are all located inside the swing arm, the second subgear includes a coaxially mounted first gear plate and a second gear plate, the first subgear meshes with the first gear plate, the second gear plate is coaxially mounted to the first gear plate and meshes with the third subgear, the connecting cylinder is located outside the swing arm and coaxially mounted with the third subgear, the connecting cylinder is screwed into the sleeve, and as the gear set rotates, the sleeve and the connecting cylinder rotate relative to each other, causing the sleeve to move up or down relative to the connecting cylinder.

[0038] Selectively, guide portions arranged in a helical direction are installed on the cylindrical wall of the connecting cylinder. An insertion groove for accommodating the connecting cylinder is provided in the cylindrical wall of the sleeve, and a helical guide groove for accommodating the guide portion is provided in the groove wall of the insertion groove. Among these, the guide portion is a spiral boss or a plurality of projections distributed at intervals.

[0039] Selectively, stopper ribs are installed near the opening of the groove wall of the insertion groove, and the stopper ribs abut against the guide portion to allow the sleeve to move up and down relative to the connecting cylinder. Used to regulate position, The guide portion abuts against the bottom of the insertion groove to restrict the vertical movement of the sleeve relative to the connecting cylinder.

[0040] Selectively, a position-regulating plane that matches the rotating cleaning unit is provided on the inner wall of the sleeve. Of these, the axial cross-section of the sleeve is hexagonal.

[0041] Selectively, the second drive assembly further includes a second housing having an open end, and when the cleaning device includes the first housing, the second housing engages with the first housing, the worm, the turbine, the swing arm and the connecting cylinder are located in a space enclosed by the second housing and the first housing, the opening of the second housing is located away from the first housing, the bottom end of the sleeve is used to extend outside the opening of the second housing, the lifting drive unit is located outside the second housing, and the worm is drilled into the second housing and connected to the lifting drive unit.

[0042] Selectively, the second housing is partitioned into a first mounting cavity and a second mounting cavity, the turbine is located within the first mounting cavity, the sleeve is located within the second mounting cavity, the swing arm extends into the first and second mounting cavities, and the shape of the second mounting cavity is adapted to the movement space of the swing arm. The second housing further includes a bottom plate, which is detachably connected to the cavity wall of the first mounting cavity so as to enclose the turbine within the first mounting cavity. [Effects of the Invention]

[0043] Embodiments of the present invention provide a drive device and a cleaning device, wherein one end of a swing arm is rotatably connected to the body of the cleaning device and the other end is connected to a rotary cleaning unit, thereby giving the cleaning device to which the transmission device is applied a pallet extension and retraction function, and the rotary cleaning unit is driven to switch between a first position and a second position using the swing arm according to the cleaning range needs, thereby moving the rotary cleaning unit to an operating position that satisfies the corresponding cleaning range needs, thereby satisfying the needs of different mop ranges, expanding the mop range, which is advantageous for improving the cleaning effect, improving the user's cleaning experience, and the swing when the rotary cleaning unit moves from the first position to the second position By having the arm rotate in the same direction as the rotating cleaning unit, the torque generated by friction between the rotating cleaning unit and the surface to be cleaned acts as an assisting force for the rotating cleaning unit's retraction. When the cleaning unit rotates and collides with a wall, friction is generated, and the torque generated by this friction similarly acts as an assisting force for the rotating cleaning unit's retraction. This allows the rotating cleaning unit to easily retract passively when it comes into contact with an obstacle. As a result, the posture of the cleaning device does not passively change when the rotating cleaning unit is blocked by an obstacle, the cleaning device can adhere closely to the boundary of the obstacle, the cleaning device can operate in complex environments, and the range of application of the cleaning device is improved. [Brief explanation of the drawing]

[0044] [Figure 1] This is a schematic diagram of the structure of a cleaning device when the rotary cleaning unit according to one selectable embodiment of the present invention is in a second position. [Figure 2] This is a schematic diagram of the structure of a cleaning device when a rotary cleaning unit according to one selectable embodiment of the present invention moves from a first position to a second position. [Figure 3]This is a schematic diagram of the structure of the swing arm when the rotary cleaning unit according to one selectable embodiment of the present invention is in a first position. [Figure 4] This is a schematic diagram of the structure of the first drive assembly when the rotary cleaning unit according to one selectable embodiment of the present invention is in a first position. [Figure 5] This is a schematic diagram of the structure of the first drive assembly when the rotary cleaning unit according to one selectable embodiment of the present invention is in a second position. [Figure 6] Figure 5 shows a schematic diagram of the structure of the embodiment from a different perspective. [Figure 7] Figure 5 shows a schematic diagram of the structure from yet another viewpoint of the embodiment shown. [Figure 8] Figure 7 shows a cross-sectional view in the AA direction of the embodiment shown. [Figure 9] This is a schematic diagram of the structure of a second drive assembly of a rotary cleaning unit according to one selectable embodiment of the present invention. [Figure 10] Figure 4 shows a schematic diagram of the structure of the embodiment from a different perspective. [Figure 11] This is a schematic diagram of the structure of a second housing according to one of the selectable embodiments of the present invention. [Figure 12] Figure 11 shows a schematic diagram of the structure of the embodiment from a different viewpoint. [Figure 13] This is a schematic diagram of the structure when a roller is installed in the contact portion according to one of the selectable embodiments of the present disclosure. [Modes for carrying out the invention]

[0045] In the description of this application, it should be understood that the orientations or positional relationships indicated by terms such as "center," "vertical," "horizontal," "length," "width," "thickness," "top," "bottom," "front," "back," "left," "right," "perpendicular," "horizontal," "top," "bottom," "inside," "outside," "clockwise," and "counterclockwise" are orientations or positional relationships shown based on the drawings and are merely for the purpose of easily describing and simplifying the description of the present invention. They do not indicate or imply that the devices or elements mentioned have a specific orientation or must be configured and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0046] Furthermore, terms such as "first," "second," etc., are for descriptive purposes only and should not be interpreted as indicating or implying their relative importance, or as implying the number of technical features described. Thus, features designated as "first," "second," etc., may explicitly or implicitly include one or more such features. In the description of this invention, "multiple" means two or more unless otherwise clearly and specifically limited.

[0047] In this application, unless otherwise specified or limited, terms such as “attachment,” “connection,” “connection,” and “fixing” should be understood in a broad sense, and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, or internal communication between two elements. A person skilled in the art will be able to understand the specific meaning of these terms in this invention depending on the specific circumstances.

[0048] Preferred embodiments of the present invention will be described below with reference to the drawings, and it should be understood that the preferred embodiments described herein are for illustrative and interpretive purposes only and do not limit the present invention.

[0049] As shown in Figures 1 to 13, according to one embodiment of the present invention, a transmission device is provided to be applied to a cleaning device 10, the transmission device comprising a swing arm 2 and a rotary cleaning unit 1, the swing arm 2 being rotatably connected at one end to the body of the cleaning device 10 and at the other end to the rotary cleaning unit 1, the swing arm 2 drives the rotary cleaning unit 1 to move between a first position and a second position,

[0050] Of these, the area in which at least a portion of the rotating cleaning unit 1 is located outside the projection area of ​​the cleaning device 10 when the rotating cleaning unit 1 is in the second position is greater than the area in which at least a portion of the rotating cleaning unit 1 is located outside the projection area of ​​the cleaning device 10 when the rotating cleaning unit 1 is in the first position, and when the rotating cleaning unit 1 moves from the first position to the second position, the rotation direction of the swing arm 2 is the same as the rotation direction of the rotating cleaning unit 1.

[0051] By rotatably connecting one end of the swing arm 2 to the main body of the cleaning device 10 and the other end to the rotary cleaning unit 1, the cleaning device 10 to which the transmission device is applied is given a pallet extension and retraction function. Depending on the cleaning range needs, the rotary cleaning unit 1 is driven using the swing arm 2 to switch between a first position and a second position, and by moving the rotary cleaning unit 1 to an operating position that satisfies the corresponding cleaning range needs, different mopping range needs are met, the mopping range is expanded, which is advantageous for improving the cleaning effect and further enhancing the user's cleaning experience, and the rotary cleaning unit 1 moves from the first position. When moving toward the second position, the rotation direction of the swing arm 2 is the same as the rotation direction of the rotary cleaning unit 1. As a result, the torque due to friction between the rotary cleaning unit 1 and the surface to be cleaned becomes an assisting force for the rotary cleaning unit 1 to retract, enabling the rotary cleaning unit 1 to easily retract passively when it comes into contact with an obstacle. This prevents the posture of the cleaning device 10 from passively changing when the rotary cleaning unit 1 is blocked by an obstacle, allowing the cleaning device 10 to adhere closely to the boundary of the obstacle, enabling the cleaning device 10 to operate in complex environments, and improving the range of application of the cleaning device 10.

[0052] The transmission device can be applied to robotic vacuum cleaners or other cleaning devices.

[0053] The transmission system includes a swing arm 2, which is roughly elongated in shape.

[0054] The transmission device further includes a rotary cleaning unit 1, which may be a circular pallet, and is connected to the cleaning device 10 via a swing arm 2. Specifically, the swing arm 2 is installed on the side of the cleaning device 10 that is close to the surface to be cleaned. One end of the swing arm 2 is rotatably connected to the cleaning device 10, and the other end is connected to the rotary cleaning unit 1. The swing arm 2 rotates around the connection point between the swing arm 2 and the cleaning device 10 as the center of rotation, thereby moving the rotary cleaning unit 1 and adjusting the cleaning position of the rotary cleaning unit 1. Of these, the movement position of the rotary cleaning unit 1 includes the first position and the second position.

[0055] Specifically, in one embodiment, when the rotary cleaning unit 1 is in the first position, the rotary cleaning unit 1 is located within the outer edge projection area of ​​the cleaning device 10, and when the rotary cleaning unit 1 is in the second position, at least a portion of the rotary cleaning unit 1 is located outside the outer edge projection area of ​​the cleaning device 10. In another embodiment, when the rotary cleaning unit 1 is in the first or second position, at least a portion of the rotary cleaning unit 1 is located outside the outer edge projection area of ​​the cleaning device 10, but when the rotary cleaning unit 1 is in the second position, at least a portion of the rotary cleaning unit 1 is located outside the projection area of ​​the cleaning device 10. The area is greater than the area in which at least a portion of the rotating cleaning unit 1 is located outside the projection area of ​​the cleaning device 10 when the rotating cleaning unit 1 is in the first position. As will be understood later, when the swing arm 2 moves the rotary cleaning unit 1 from the first position to the second position, the area that the rotary cleaning unit 1 extends from the outer edge projection area of ​​the cleaning device 10 increases, and at this time, the rotary cleaning unit 1 can clean the blind spots of the surface to be cleaned.

[0056] Specifically, the rotating cleaning unit 1 may be a rotating cleaning element, a vibrating cleaning element, or a fixed cleaning element. In the embodiment of the present invention, the rotating cleaning unit 1 may be a pallet, and the rotating cleaning unit 1 removes dirt from the surface to be cleaned via rotational motion.

[0057] The surface to be cleaned may be the floor of a bedroom, for example. In this invention, one end of the swing arm 2 is rotatably connected to the main body of the cleaning device 10, and the other end is connected to the rotary cleaning unit 1. This allows the cleaning device 10 to which the transmission device is applied to have a pallet extension function, and enables the rotary cleaning unit 1 to extend and clean blind spots on the bedroom floor.

[0058] In specific applications, when the rotary cleaning unit 1 moves from a first position to a second position, the rotation direction of the swing arm 2 is the same as the rotation direction of the rotary cleaning unit 1. As a result, the torque due to friction between the rotary cleaning unit 1 and the surface to be cleaned becomes an assisting force for the rotary cleaning unit 1 to retract, enabling the rotary cleaning unit 1 to easily retract passively when it comes into contact with an obstacle. This prevents the posture of the cleaning device 10 from passively changing when the rotary cleaning unit 1 is blocked by an obstacle, allowing the cleaning device 10 to adhere closely to the boundary of the obstacle, enabling the cleaning device 10 to complete cleaning work in complex environments and improving the range of application of the cleaning device 10.

[0059] In the above embodiment, as one embodiment, when the swing arm 2 rotates clockwise, the rotary cleaning unit 1 moves from a first position to a second position. At this time, the rotation directions of the rotary cleaning unit 1 and the swing arm 2 are the same, that is, the rotary cleaning unit 1 also rotates clockwise. As can be understood, when the rotary cleaning unit 1 retracts, the lower swing arm 2 needs to rotate counterclockwise, and since the rotation direction of the rotary cleaning unit 1 is clockwise, at this time the rotary cleaning unit 1 and the surface to be cleaned come into contact and receive a counterclockwise frictional force, generating the same torque as the rotation direction of the lower swing arm 2 when the rotary cleaning unit 1 is retracted, thereby reducing the load on the swing arm 2, making it easier for the rotary cleaning unit 1 to retract and improving the stability of the operation of the cleaning device 10. In another embodiment, as shown in Figure 2, when the swing arm 2 rotates counterclockwise, the rotary cleaning unit 1 moves from a first position to a second position. At this time, the rotation directions of the rotary cleaning unit 1 and the swing arm 2 are the same, that is, the rotary cleaning unit 1 also rotates counterclockwise. As can be understood, when the rotary cleaning unit 1 retracts, the lower swing arm 2 needs to rotate clockwise, and since the rotation direction of the rotary cleaning unit 1 is counterclockwise, at this time the rotary cleaning unit 1 and the surface to be cleaned come into contact and receive a clockwise frictional force, generating the same torque as the rotation direction of the lower swing arm 2 when the rotary cleaning unit 1 is retracted, thereby reducing the load on the swing arm 2, and allowing the rotary cleaning unit 1 to retract more easily, thus improving the cleaning device 10 To improve the stability of its operation.

[0060] Specifically, when the rotating cleaning unit 1 comes into contact with an obstacle, the rotation direction of the rotating cleaning unit 1 is the same as the rotation direction of the swing arm 2 when it is extended. At this time, the direction of the resultant force of the reaction force that the rotating cleaning unit 1 receives from the obstacle and the frictional force between the rotating cleaning unit 1 and the surface to be cleaned is the same as the rotation direction of the swing arm 2 when it is retracted. This reduces the load on the swing arm 2, allows the rotating cleaning unit 1 to be easily and passively retracted when it encounters an obstacle, prevents the rotating cleaning unit 1 from being bounced off the obstacle, allows the cleaning device 10 to clean along the edge of the obstacle, allows the cleaning device 10 to complete cleaning work in complex environments, and improves the range of application of the cleaning device 10.

[0061] When the rotating cleaning unit 1 comes into contact with an obstacle, the reaction force that the rotating cleaning unit 1 receives from the obstacle includes the supporting force of the obstacle on the rotating cleaning unit 1 and the frictional force between the obstacle and the rotating cleaning unit 1.

[0062] Of these, the swing arm 2 can be rotated via the drive of the motor, and when the rotation direction of the swing arm 2 and the rotary cleaning unit 1 are the same, the motor drives the swing arm 2 to rotate and retract the rotary cleaning unit 1. The torque generated by the frictional force between the rotary cleaning unit 1 and the surface to be cleaned and the reaction force provided by the obstacles is an auxiliary force, reducing the load that the motor has to overcome, improving the stability of the motor's operation, and extending the motor's service life.

[0063] Specifically, when the cleaning device 10 is operating, the rotating cleaning unit 1 can easily retract upon contact with an obstacle. At this time, the torque generated by the support force and frictional force of the obstacle on the rotating cleaning unit 1, and the torque generated by the frictional force between the rotating cleaning unit 1 and the surface to be cleaned, are all auxiliary forces for motor operation. This prevents the motor from overcurrent due to resistance from the rotating cleaning unit 1, improves the mechanical performance of the motor and rotating members, and extends their service life. At the same time, the rotating cleaning unit 1 can easily retract passively upon encountering an obstacle, preventing the mechanical posture of the entire cleaning device 10 from passively changing due to the rotating cleaning unit 1 being blocked by the obstacle. For example, when the cleaning device 10 rotates along a wall, it prevents the cleaning device 10 from being pushed by the wall surface, and allows the rotating cleaning unit 1 to retract passively. This eliminates the need for the motor to frequently drive and rotate the swing arm 2, improving the mechanical performance and service life of the motor and related transmission members, and reducing costs.

[0064] In some feasible embodiments provided by this disclosure, the transmission further includes a first drive assembly 3 which is connected to a swing arm 2 and drives the swing arm 2 to rotate, and can further move the rotary cleaning unit 1 between a first position and a second position. Since the surface to be cleaned is usually a planar structure, in the process of the rotary cleaning unit 1 being positioned at the first or second position and performing a mopping operation on the surface to be cleaned, the rotary cleaning unit 1 can still perform the mopping operation in the process of the rotary cleaning unit 1 being driven by the first drive assembly 3 to move it to the second or first position, without the need to stop the cleaning operation and switch the operating position, ensuring that the rotary cleaning unit 1 makes reliable contact with the surface to be cleaned after the operating position has been switched, ensuring a good cleaning effect, simplifying the control program, and improving cleaning efficiency.

[0065] Specifically, by positioning at least a portion of the rotating cleaning unit 1 in the second position outside the peripheral projection area of ​​the cleaning device 10, the cleaning range of the rotating cleaning unit 1 in the second position can extend beyond the peripheral edge of the travel range of the cleaning device 10. This allows for comprehensive cleaning of corners and edges that the cleaning device 10 cannot reach, improving the cleaning range of the rotating cleaning unit 1 and enhancing the cleaning effect of the cleaning device 10.

[0066] Of these, the rotating cleaning unit 1 in the second position may be entirely located outside the peripheral projection area of ​​the cleaning device 10, or only a portion of it may be located outside the peripheral projection area of ​​the cleaning device 10, and may be set according to the specific structure.

[0067] Of these, the rotary cleaning unit 1 in the first position is located within the peripheral projection area of ​​the cleaning device 10, so that the cleaning range of the rotary cleaning unit 1 in the first position is located within the travel range of the cleaning device 10. This allows mopping operations to be performed on an area within the travel range of the cleaning device 10, thereby reducing the possibility of the rotary cleaning unit 1 extending outside the cleaning device 10 and colliding with an obstacle, which is advantageous for improving the service life and reliability of the rotary cleaning unit 1.

[0068] Based on whether or not mopping of corners and edges is required, the rotary cleaning unit 1 can be selectively driven to switch between a first position and a second position. For example, the rotary cleaning unit 1 can be moved to the first position to perform a normal wet cleaning operation, and the rotary cleaning unit 1 can be moved to the second position to perform a wet cleaning operation on corners and edges, thereby meeting different functional needs of the cleaning device 10 and improving the intelligence of the cleaning device 10.

[0069] In some feasible embodiments provided by this disclosure, during the process of switching the rotary cleaning unit 1 between a first position and a second position, the first drive assembly 3 contacts the swing arm 2 to ensure that the swing arm 2 rotates and moves stably to rotate the swing arm 2, and further ensures that the rotary cleaning unit 1 is stably switched between the first position and the second position.

[0070] Of these, the first drive assembly 3 can directly contact the swing arm 2 and can also move directly to rotate the swing arm 2 via the rotation of the first drive assembly 3.

[0071] Specifically, the first drive assembly 3 may include a cam or other eccentric rotating mechanism that contacts the outer wall of the swing arm 2 and directly pushes the swing arm 2 to rotate by driving the cam or other eccentric rotating mechanism to rotate on its own axis.

[0072] In some feasible embodiments provided by this disclosure, the swing arm 2 is connected at one end to a first cam 5 and at the other end to a rotary cleaning unit 1, and in the process of switching the rotary cleaning unit 1 between a first position and a second position, the first drive assembly 3 contacts a protrusion 52 of the first cam 5 to rotate the swing arm 2.

[0073] In some feasible embodiments provided herein, the first drive assembly 3 includes a telescopic drive member 31 and a second cam 33, wherein the telescopic drive member 31 is connected to the second cam 33. It is connected and used to drive the second cam 33 to rotate, the second cam 33 in contact with the first cam 5. The first drive assembly 3 further includes a drive gear 32 fitted to the output end of the telescopic drive member 31 and meshing with the second cam 33.

[0074] Of these, the second cam 33 includes a fan-shaped tooth portion 331 and a contact portion 332. The transmission gear 32 is power-connected to the telescopic drive member 31 and meshes with the fan-shaped tooth portion 331. The contact portion 332 contacts the first cam 5, which is installed coaxially with the swing arm 2.

[0075] Of these, the fan-shaped teeth 331 and the contact portion 332 are distributed at intervals in the circumferential direction of the rotation axis of the second cam 33, so that the second cam 33 can be rotated, and the fan-shaped teeth 331 and the contact portion 332 can be rotated simultaneously. As a result, the telescopic drive member 31 rotates in one direction (for example, clockwise or counterclockwise) to rotate the transmission gear 32, and because the fan-shaped teeth 331 and the transmission gear 32 mesh, the second cam 33 can be rotated via the fan-shaped teeth 331, and the contact portion 332 can be rotated as well. The contact portion 332 contacts the first cam 5, which pushes and rotates the first cam 5. Since the first cam 5 and the swing arm 2 are installed coaxially, the swing arm 2 rotates in sync with the first cam 5, and the rotating cleaning unit 1 mounted inside the swing arm 2 can be moved from the second position to the first position.

[0076] In the above embodiment, the transmission device further includes an elastic member 4, one end of which is connected to the swing arm 2 and the other end of which is fixedly connected relative to the body of the cleaning device 10, and the first drive assembly 3 drives the rotary cleaning unit 1 via the swing arm 2 by the action of the elastic member 4 to move between a first position and a second position. When the rotary cleaning unit 1 moves from the second position toward the first position, the elastic member 4 stores elastic energy by the drive of the first drive assembly 3. When the rotary cleaning unit 1 moves from the first position toward the second position, the elastic energy of the elastic member 4 is released. The telescopic drive member 31 rotates in a different direction (for example, counterclockwise or clockwise) to move the transmission gear 32, causing the sector-shaped teeth 331 to mesh with the transmission gear 32, thereby moving the second cam 33 via the sector-shaped teeth 331, and further moving the contact portion 332, so that the direction of rotation of the contact portion 332 is opposite to the direction of rotation of the contact portion 332 as the rotary cleaning unit 1 moves toward the body of the cleaning device 10, and at this time, due to the action of the elastic member 4, the first cam 5 rotates in the opposite direction to the first cam 5 as the rotary cleaning unit 1 moves toward the body of the cleaning device 10, and since the first cam 5 is installed coaxially with the swing arm 2, the swing arm 2 can rotate synchronously with the first cam 5, and further moves the rotary cleaning unit 1 mounted within the swing arm 2 from the first position toward the second position.

[0077] As a result, the retractable drive member 31, the transmission gear 32, the second cam 33, the first cam 5, and the elastic member 4 engage with each other, enabling the swing arm 2 to rotate along different directions, and also enabling the switching operation between the first and second positions of the rotating cleaning unit 1, resulting in a simple structure and convenient operation.

[0078] Specifically, in the embodiment of the present application, when the rotary cleaning unit 1 is in the first position, the first cam 5 and the second cam 33 are in contact and the elastic member 4 is in a tensile state, and when the rotary cleaning unit 1 is in the second position, the first cam 5 and the second cam 33 are separated and the elastic member 4 returns to its original state.

[0079] In the above embodiment, a protrusion 52 and a connecting portion 51 are provided on the circumferential side of the first cam 5. The connecting portion 51 is used to connect to the elastic member 4, and the abutting portion 332 is located between the protrusion 52 and the connecting portion 51 and is used to abut against the protrusion 52.

[0080] As the convex portion 52 and the connecting portion 51 are distributed with a gap between them on the circumferential side of the first cam 5, the convex portion 52 rotates, causing the first cam 5 and the connecting portion 51 to rotate synchronously, and the contact portion 332 of the second cam 33 is positioned between the convex portion 52 and the connecting portion 51. In this way, by moving the second cam 33 in one direction (for example, clockwise or counterclockwise), the contact portion 332 and the convex portion 52 are brought into smooth contact, pushing and rotating the first cam 5, and further driving the swing arm 2 to move the rotating cleaning unit 1 toward the first position. At the same time, in the process of the second cam 33 moving in another direction (for example, counterclockwise or clockwise), the contact portion 332 moves in the opposite direction, releasing the pressing force on the convex portion 52, and the first cam 5 separates from the second cam 33. At this time, due to the action of the elastic member 4, the first cam 5 receives an elastic force that returns the elastic member 4 to its original state, that is, the elastic member 4 can pull and rotate the first cam 5, and further drives the swing arm 2 to move the rotating cleaning unit 1 toward the second position.

[0081] As can be understood, the first end of the elastic member 4 is connected to the first cam 5, and the first end of the elastic member 4 may also be connected to the swing arm 2, and the first end of the elastic member 4 may also be connected to both the first cam 5 and the swing arm 2 simultaneously.

[0082] In this embodiment, the elastic member 4 is an example of a tension spring. One end of the elastic member 4 may be indirectly or directly fixedly connected to the main body of the cleaning device 10, that is, to ensure relative stationary position with respect to the main body of the cleaning device 10. The other end may be connected to the first cam 5 alone, to the swing arm 2, or to both the first cam 5 and the swing arm 2 simultaneously. For example, if the elastic member 4 has a Y-shaped structure, it can be connected to both the first cam 5 and the swing arm 2 simultaneously. Naturally, simultaneous connection to the first cam 5 and the swing arm 2 can also be achieved via a connecting wire or other connecting material 51.

[0083] In some feasible embodiments provided by this disclosure, the elastic member 4 is a tension spring, the first end of which is connected to a protrusion 52 of the first cam 5, and the second end of which is fixed relative to the body of the cleaning device 10.

[0084] In this configuration, the elastic member 4 is used as a tension spring, and the first end of the tension spring is connected to the protrusion 52 of the first cam 5, while the second end of the tension spring is fixed relative to the main body of the cleaning device 10. This allows for a stable supply of elastic force, thereby enabling the rotary cleaning unit 1 to be switched from the second position to the first position.

[0085] In some feasible embodiments provided by this disclosure, the elastic member 4 is a torsion spring, and the torsion spring is mounted on the rotation axis of the first cam 5.

[0086] The torsion spring may be installed coaxially with the rotation axis of the first cam 5, that is, the torsion spring may be fitted to the outer circumference of the rotation axis of the first cam 5, and one end of the torsion spring may be connected to the protrusion 52 of the first cam 5, and the second end of the torsion spring may be fixed relative to the body of the cleaning device 10, thereby providing a stable elastic force, which allows the rotary cleaning unit 1 to be switched from the second position to the first position.

[0087] In some feasible embodiments provided by this disclosure, the elastic member 4 is an elastic sheet, the first end of the elastic sheet is connected to a protrusion 52 of the first cam 5, and the elastic sheet The second end is fixed relative to the body of the cleaning device 10. Of these, the first end of the elastic sheet is connected to the protrusion 52 of the first cam 5, and the second end is fixed relative to the body of the cleaning device 10, allowing the rotating cleaning unit 1 to be stably moved to switch from the second position to the first position via the elastic force generated after deformation.

[0088] As can be understood, the elastic member 4 may also be an elastic member other than a tension spring, torsion spring, and elastic sheet, and should provide an elastic force that allows the rotary cleaning unit 1 to be switched from a first position to a second position.

[0089] In some feasible embodiments provided by this disclosure, the outer walls of the first cam 5 and the second cam 33 are provided with wear-resistant layers, which reduce the frictional force when the first cam 5 and the second cam 33 come into contact and protect the first cam 5 and the second cam 33, thereby extending the service life of the first cam 5 and the second cam 33 and is advantageous for driving the rotation of the swing arm 2.

[0090] The wear-resistant layer may be a metal sheet or may be replaced with another wear-resistant material, including but not limited to PK and powder metallurgy, in order to avoid wear on the first cam 5 and the second cam 33.

[0091] In some feasible embodiments provided by this disclosure, a roller 335 is installed on the contact portion 332 of the first cam 5, and the first cam 5 contacts the first drive assembly 3 via the roller 335, thereby creating rolling friction between the convex portion 52 and the first drive assembly 3, resulting in relatively low frictional force and ensuring that the first cam 5 and the first drive assembly 3 have a relatively long service life.

[0092] Of these, the protrusion 52 of the first cam 5 contacts the contact portion 332 of the second cam 33 via the roller 335.

[0093] Specifically, the axis of the roller 335 is approximately parallel to the contact surface between the protrusion 52 and the first drive assembly 3, and furthermore, it is ensured that the roller 335 can roll stably on the first cam 5.

[0094] Another aspect of the present application provides a cleaning device 10 including the transmission device.

[0095] In some feasible embodiments provided herein, the cleaning device 10 further includes a first housing 6 connected to the body of the cleaning device 10, the first housing 6 being positioned on the side of the cleaning device 10 adjacent to the surface to be cleaned, the telescopic drive member 31 and the swing arm 2 being located outside the first housing 6, the transmission gear 32, the second cam 33, the first cam 5 and the elastic member 4 being located inside the first housing 6, the transmission gear 32 being power-connected to the telescopic drive member 31 by drilling through the first housing 6, and the elastic member 4 being connected at one end to the first housing 6 and at the other end to the first cam 5.

[0096] Of these, the transmission gear 32, the second cam 33, the first cam 5, and the elastic member 4 are all located within the first housing 6. This allows the first housing 6 to provide good protection to the transmission device, which is advantageous for extending the service life and improving the reliability of the transmission device, and at the same time, is advantageous for ensuring that the transmission device has good transmission accuracy.

[0097] Specifically, the first housing 6 is detachably connected to the first upper housing and A first lower housing may be included, which facilitates the attachment and detachment of the first housing 6, the attachment and detachment of the first drive assembly 3, and the attachment and detachment of the transmission. Specifically, the first upper housing and the first lower housing can be connected detachably by at least one of screws, locking structures, tenon structures, and magnetic attraction structures.

[0098] In some feasible embodiments provided by this disclosure, the cleaning device 10 further includes a position detection device 7, which is installed within a housing and used to detect the rotational position of a second cam 33, and the telescopic drive member 31 rotates or stops rotating based on the detection result of the position detection device 7.

[0099] In addition, the installation of the position detection device 7 makes it possible to detect the rotational position of the second cam 33 and to know the rotational position of the first cam 5. As a result, when the first cam 5 rotates to an appropriate position, for example, when the first cam 5 rotates so that the rotary cleaning unit 1 moves to a first or second position via the swing arm 2, the telescopic drive member 31 stops rotating based on the detection result of the position detection device 7 at this time, and holds the rotary cleaning unit 1 in the first or second position, thereby enabling precise switching between the first and second positions. As understood, when the first cam 5 rotates and the rotary cleaning unit 1 does not move to the first or second position via the swing arm 2, the telescopic drive member 31 continues to rotate based on the detection result of the position detection device 7 at this time, thereby moving the rotary cleaning unit 1 in a direction toward the target operating position (for example, the first or second position).

[0100] Of these, the position detection device 7 may include a photoelectric switch, a mechanical switch, or other detection mechanism that meets the requirements.

[0101] In the above embodiment, the position detection device 7 includes a first photoelectric switch 71 and a second photoelectric switch 72 distributed on both sides of the second cam 33, the second cam 33 further includes a first baffle 333 and a second baffle 334 distributed on both sides of the contact portion 332, the first baffle 333 is inserted into the first photoelectric switch 71 and used to cause the first photoelectric switch 71 to change the detection signal, and the second baffle 334 is inserted into the second photoelectric switch 72 and used to cause the second photoelectric switch 72 to change the detection signal.

[0102] In this embodiment, by installing a first photoelectric switch 71 and a second photoelectric switch 72 on both sides of the second cam 33, the two photoelectric switches can be used to detect whether the rotary cleaning unit 1 has reached a first position and a second position, respectively. This improves the accuracy of detecting whether the rotary cleaning unit 1 has reached the target operating position.

[0103] Typically, a photoelectric switch includes a light-emitting unit and a light-receiving unit, and the light-receiving unit modifies the detection signal of the photoelectric switch depending on whether or not it can receive the optical signal from the light-emitting unit. By installing the first baffle 333 and the second baffle 334 on the second cam 33, the rotation of the second cam 33 can cause the first baffle 333 and the second baffle 334 to rotate synchronously. The first baffle 333 and the second baffle 334 are distributed on both sides of the contact portion 332. When the second cam 33 rotates to the appropriate position, the first baffle 333 is inserted into the first photoelectric switch 71, causing the first photoelectric switch 71 to change its detection signal. For example, the first baffle 333 is positioned between the light-emitting and light-receiving portions of the first photoelectric switch 71, preventing the light-receiving portion from receiving the light signal emitted from the light-emitting portion. This changes the detection signal of the first photoelectric switch 71, indicating that the first cam 5 has rotated to the appropriate position, bringing the rotating cleaning unit 1 to the first position. At this time, the telescopic drive member 3 The rotating cleaning unit 1 can be maintained in the first position by stopping its rotation in response to the detection signal from the first photoelectric switch 71.

[0104] When the second cam 33 rotates to the appropriate position, the second baffle 334 is inserted into the second photoelectric switch 72, causing the second photoelectric switch 72 to change its detection signal. For example, the second baffle 334 is positioned between the light-emitting and light-receiving parts of the second photoelectric switch 72, preventing the light-receiving part from receiving the light signal emitted from the light-emitting part. This causes the second photoelectric switch 72 to change its detection signal, and the rotary cleaning unit 1 is placed in the second position until the first cam 5 rotates to the appropriate position. At this time, the telescopic drive member 31 stops rotating in response to the detection signal from the second photoelectric switch 72, thereby maintaining the rotary cleaning unit 1 in the second position.

[0105] In some feasible embodiments provided herein, the cleaning device 10 further includes a rotation angle detection device, which is installed on the telescopic drive member 31 and used to detect the rotation angle of the output shaft of the telescopic drive member 31, and the telescopic drive member 31 further rotates or stops rotating based on the detection result of the rotation angle detection device.

[0106] By installing the rotation angle detection device, the rotation angle of the output shaft of the telescopic drive member 31 can be detected, thereby allowing us to determine the rotation angle of the transmission gear 32, the rotation angle of the second cam 33, and further, the rotation angle of the first cam 5. As a result, when the first cam 5 rotates to an appropriate angle, for example, when the first cam 5 rotates so that the rotary cleaning unit 1 moves to a first or second position via the swing arm 2, the telescopic drive member 31 stops rotating based on the detection result of the rotation angle detection device at that time, and holds the rotary cleaning unit 1 in the first or second position, thereby enabling precise switching between the first and second positions. As understood, when the first cam 5 rotates and the rotary cleaning unit 1 does not move to the first or second position via the swing arm 2, the telescopic drive member 31 continues to rotate based on the detection result of the rotation angle detection device at that time, thereby moving the rotary cleaning unit 1 in a direction toward the target operating position (e.g., the first or second position).

[0107] In some feasible embodiments provided herein, a first position restricting member 8 and a second position restricting member 9 are further provided within the first housing 6, distributed around the first cam 5, wherein the first position restricting member 8 is located away from the contact portion 332 of the protrusion 52 and is used to restrict the rotation of the first cam 5 by contacting the protrusion 52, and the second position restricting member 9 is located away from the contact portion 332 of the connector 51 and is used to restrict the rotation of the first cam 5 by contacting the connector 51.

[0108] This allows the rotation of the first cam 5 to be restricted. For example, after the first cam 5 has rotated to the appropriate position, the protrusion 52 of the first cam 5 comes into contact with the first position restricting member 8, preventing the first cam 5 from continuing to move toward the first position restricting member 8, thus ensuring that the rotating cleaning unit 1 is reliably and accurately maintained in the first position. At the same time, after the first cam 5 has rotated to the appropriate position, the connecting portion 51 of the first cam 5 comes into contact with the second position restricting member 9, preventing the first cam 5 from continuing to move toward the second position restricting member 9, thus ensuring that the rotating cleaning unit 1 is reliably and accurately maintained in the second position.

[0109] As can be understood, in this state, even if the telescopic drive member 31 continues to rotate, the first cam 5 does not continue to rotate due to the action of the first position restricting member 8 or the second position restricting member 9. Therefore, even in the event of a failure of the position detection device 7 and the rotation angle detection device, the rotary cleaning unit 1 can be reliably maintained in the first or second position, achieving double verification and improving the accuracy and reliability of the rotary cleaning unit 1 reaching the target operating position.

[0110] In some feasible embodiments provided by this disclosure, the cleaning device 10 further includes a second drive assembly 11, which is connected to a rotary cleaning unit 1 and used to drive the rotary cleaning unit 1 to move up and down.

[0111] The second drive assembly 11 is further used to move the rotary cleaning unit 1 to vibrate and / or rotate around its own central axis as the center of rotation.

[0112] This allows the rotary cleaning unit 1, which is in the first or second position, to be driven to descend and rotate until it contacts the surface to be cleaned, thereby enabling a mopping operation on the surface to be cleaned. After the cleaning operation is completed, the rotary cleaning unit 1 can be driven to rise using the second drive assembly 11, that is, to move the rotary cleaning unit 1 away from the surface to be cleaned and to retract the rotary cleaning unit 1. This prevents the rotary cleaning unit 1 from contacting the surface to be cleaned during the movement of the cleaning device 10. This is advantageous in situations where mopping is not required, such as when the automatic cleaning device 10 is moving back and forth between the base station or performing carpet cleaning, as it prevents the rotary cleaning unit 1 from contacting the surface to be cleaned and causing secondary contamination of the surface. This improves the cleaning performance, cleaning efficiency, and user experience of the cleaning device 10.

[0113] In other words, the second drive assembly 11 drives the lifting and rotating operations of the rotary cleaning unit 1 based on the need for the rotary cleaning unit 1 to contact the surface to be cleaned, that is, whether the rotary cleaning unit 1 performs a cleaning function or a storage function, thereby meeting the different functional needs of the rotary cleaning unit 1, that is, enabling the processing of a cleaning or storage distinction strategy for the rotary cleaning unit 1, and improving the cleaning performance of the cleaning device 10. As can be understood, that is, in the first position, the rotary cleaning unit 1 may perform a cleaning function or a storage function. In the second position, the rotary cleaning unit 1 may perform a cleaning function or a storage function.

[0114] Of these, the second drive assembly 11 is further used to vibrate the rotary cleaning unit 1, for example, to move it to vibrate horizontally, thereby further improving the cleaning effect.

[0115] As a result, the cleaning apparatus 10 provided by the embodiments of this disclosure utilizes a first drive assembly 3 to drive the rotary cleaning unit 1 to switch between a first position and a second position, and utilizes a second drive assembly 11 to drive the rotary cleaning unit 1 to move up and down, vibrate and rotate, and the engagement of the first drive assembly 3 and the second drive assembly 11 can satisfy wet cleaning operations of different wet cleaning ranges, thereby expanding the cleaning range of the cleaning apparatus 10 and improving the cleaning effect. Furthermore, it can satisfy the need whether or not the rotary cleaning unit 1 needs to contact the surface to be cleaned, that is, it can satisfy the need for different functions of the rotary cleaning unit 1, such as cleaning or housing, and the cleaning apparatus 1 The cleaning performance of 0 is improved, resulting in a better user experience.

[0116] In this embodiment, the lifting and rotation of the rotary cleaning unit 1 can be driven by a single second drive assembly 11. Compared to related technologies where two second drive assemblies are required to drive the lifting and rotation of the cleaning element, this simplifies the installation to a single drive assembly, thereby meeting the design requirements for a compact and miniaturized cleaning device 10, reducing the space occupied by the cleaning device 10, lowering costs, and making it suitable for widespread adoption.

[0117] In some feasible embodiments provided by this disclosure, the second drive assembly 11 includes a lifting drive unit 111 and a connecting device 112, at least a portion of which is installed in the swing arm 2 and connected to the rotary cleaning unit 1, and the lifting drive unit 111 drives the rotary cleaning unit 1 to move up and down and rotate via the connecting device 112.

[0118] In this embodiment, since the connecting device 112 is connected to the swing arm 2 and the rotary cleaning unit 1, the connecting device 112 can drive the rotary cleaning unit 1 to move up and down and rotate through the action of the lifting drive unit 111, and can move the rotary cleaning unit 1 to switch between a first position and a second position through the action of the swing arm 2.

[0119] In some feasible embodiments provided by this disclosure, the connection device 112 includes the following:

[0120] The connecting device 112 includes a lifting drive unit 111 and the connecting device 112, at least a portion of which is installed in the swing arm 2 and connected to the rotary cleaning unit 1, and the lifting drive unit 111 drives the rotary cleaning unit 1 to move up and down and rotate via the connecting device 112.

[0121] This allows the power from the lifting drive unit 111 to be transmitted to the gear set 1122 via the worm 1121, and the sleeve 1123 to be lifted and rotated via the gear set 1122, thereby moving the rotary cleaning unit 1 to lift and rotate. The worm 1121 works in cooperation with the gear set 1122, and its mechanical structure is compact, small in volume, and transmits power accurately, which is advantageous in reducing the volume of the connector 112 and further reducing the volume of the second drive assembly 11, thus meeting the design needs for a compact and relatively small-volume cleaning device 10.

[0122] In the above embodiment, the gear set 1122 includes the following:

[0123] The gear set 1122 includes a turbine 11221, a first subgear 11222, a second subgear, a third subgear 11225, and a connecting tube 11226.

[0124] Of these, the turbine 11221 and the first subgear 11222 are coaxially mounted, the turbine 11221 is located outside the swing arm 2 and meshes with the worm 1121, the first subgear 11222, the second subgear, and the third subgear 11225 are all located inside the swing arm 2, the second subgear includes the first gear plate 11223 and the second gear plate 11224 which are coaxially mounted, the first subgear 11222 meshes with the first gear plate 11223, the second gear plate 11224 meshes with the third subgear 11225, and the connecting cylinder 11226 is coaxial with the third subgear 11225 The connecting cylinder 11226 is installed on the outside of the swing arm 2 and is screwed onto the sleeve 1123. As the gear set 1122 rotates, the sleeve 1123 and the connecting cylinder 11226 rotate relative to each other, causing the sleeve 1123 to move up or down relative to the connecting cylinder 11226.

[0125] As a result, the lifting drive unit 111 rotates, driving the worm 1121 to rotate, causing the turbine 11221 and the worm 1121 to mesh, thus moving the turbine 11221 to rotate, and further driving the first subgear 11222, which is installed coaxially with the turbine 11221 to rotate, causing the first subgear 11222 and the first gear plate 11223 to mesh, thus moving the first gear plate 11223 and the second gear plate 11224, which is installed coaxially with the first gear plate 11223 to rotate, causing the second gear plate 11224 and the third subgear 11225 to mesh, thus moving the third subgear 11225 to rotate, and further moving the connecting cylinder 11226, which is installed coaxially with the third subgear 11225 to rotate. Since the connecting cylinder 11226 and the sleeve 1123 are screwed together, rotating the sleeve 1123 and the connecting cylinder 11226 relative to each other causes the sleeve 1123 to move up or down relative to the connecting device 112, and further causes the rotating cleaning unit 1 installed inside the sleeve 1123 to move up, down and rotate. Such an installation is simple in structure and has high transmission accuracy.

[0126] Of these, the first subgear 11222, the second subgear, and the third subgear 11225 are all located inside the swingarm 2. This allows the swingarm 2 to be used to provide mounting space and a certain degree of protection for the first subgear 11222, the second subgear, and the third subgear 11225, extending their service life, further improving the reliability of the second drive assembly 11, and at the same time meeting the design needs of a compact and relatively small-volume structure for the first cleaning assembly. As can be understood, a rotating shaft connecting the first subgear 11222 and the turbine 11221 is drilled in the swing arm 2, and a rotating shaft connecting the third subgear 11225 and the connecting cylinder 11226 is drilled in the swing arm 2, thereby transmitting power from the lifting drive unit 111 from outside the swing arm 2 through the worm 1121 and turbine 11221 to the inside of the swing arm 2, and then retransmitting it to the outside of the swing arm 2 from the connecting cylinder 11226, causing the sleeve 1123 to move up and down and rotate the rotating cleaning unit 1.

[0127] In some feasible embodiments provided by this disclosure, the cylindrical wall of the connecting cylinder 11226 is provided with a helically arranged guide portion 11227, the cylindrical wall of the sleeve 1123 is provided with an insertion groove 11231 for accommodating the connecting cylinder 11226, and the groove wall of the insertion groove 11231 is provided with a helical guide groove 11232 for accommodating the guide portion 11227.

[0128] In this embodiment, an insertion groove 11231 is provided at the top end of the sleeve 1123, and the insertion groove 11231 of the sleeve 1123 is inserted into the cylindrical wall of the connecting cylinder 11226. The guide portion 11227 of the cylindrical wall of the connecting cylinder 11226 is housed in the guide groove 11232 of the insertion groove 11231. Since the guide portion 11227 is arranged in a helical shape and the guide groove 11232 is helical, the guide portion 11227 moves helically along the guide groove 11232, enabling rotation and vertical movement of the sleeve 1123 relative to the connecting cylinder 11226. In other words, the connection method between the sleeve 1123 and the connecting cylinder 11226 can be considered as a lead screw nut connection method. Such an installation is structurally simple, easy to implement, and allows vertical movement and rotation of the sleeve 1123 using a single set of structures, which is advantageous in reducing the volume of the second drive assembly 11.

[0129] Furthermore, the guide portion 11227 is installed on the outer wall of the connecting cylinder 11226, and the guide groove 11232 is installed on the groove wall of the insertion groove 11231 away from the inside of the sleeve 1123, or the guide portion 11227 is installed on the inner wall of the connecting cylinder 11226, and the guide groove 11232 is installed on the groove wall of the insertion groove 11231 close to the inside of the sleeve 1123.

[0130] Of these, the guide portion 11227 is a helical boss, for example, the guide portion 11227 is a screw that protrudes outward, which is advantageous in improving the stability of the connecting cylinder 11226 of the sleeve 1123 against vertical rotation by regulating the relative position of the guide portion 11227 and the guide groove 11232, and improving the accuracy and reliability of the guide.

[0131] Furthermore, the guide portion 11227 consists of multiple projections distributed at intervals, that is, the multiple projections are distributed at intervals in a spiral pattern. This simplifies the structure of the guide portion 11227, which is advantageous for reducing the amount of material used in the guide portion 11227 and lowering manufacturing costs. Specifically, the number of projections may be two, three, four, or any other number.

[0132] In some feasible embodiments provided by this disclosure, a stopper rib is installed near the opening of the groove wall of the insertion groove 11231, and the stopper rib is used to abut against the guide portion 11227 to restrict the vertical movement of the sleeve 1123 relative to the connecting cylinder 11226. That is, when the stopper rib and the guide portion 11227 cooperate, the lower limit position of the sleeve 1123 relative to the connecting cylinder 11226 can be restricted. This prevents the guide portion 11227 from detaching from the guide groove 11232 and separating the sleeve 1123 from the connecting cylinder 11226, and further ensures that the sleeve 1123 is securely connected to the connecting cylinder 11226. At the same time, the rotary cleaning unit 1 connected to the sleeve 1123 can be securely and sufficiently in contact with the surface to be cleaned.

[0133] In this configuration, the guide portion 11227 abuts against the bottom of the insertion groove 11231, restricting the vertical movement of the sleeve 1123 relative to the connecting cylinder 11226. That is, when the guide portion 11227 and the bottom of the insertion groove 11231 cooperate, the sleeve 1123 limits the maximum position it can rise relative to the connecting cylinder 11226. This prevents the rotary cleaning unit 1 from continuing to rise after reaching its limit position and damaging the second drive assembly 11, thereby improving the reliability of the cleaning device 10's operation. At the same time, a constant distance is maintained between the rotary cleaning unit 1 at its upper limit position and the surface to be cleaned, reducing the impact on the cleaning device 10's climbing ability, obstacle overcoming, and secondary contamination of the surface to be cleaned.

[0134] In some feasible embodiments provided by this disclosure, a position regulating plane 11233 is installed on the inner wall of the sleeve 1123 to match the rotary cleaning unit 1, and the installation of the position regulating plane 11233 ensures that the rotary cleaning unit 1 rotates in conjunction with the rotation of the sleeve 1123, thereby ensuring that the rotary cleaning unit 1 has good cleaning capabilities.

[0135] Of these, the axial cross-section of sleeve 1123 is hexagonal, meaning that six planes are installed on the inner wall of sleeve 1123, and as can be understood, all six of these planes are position-regulating planes 11233, or some of the six planes are position-regulating planes 11233. Specifically, the part of the rotary cleaning unit 1 that connects to sleeve 1123 can be installed as a hexagonal prism structure, and by utilizing the hexagonal prism structure in cooperation with the six planes on the inner wall of sleeve 1123, the rotation of the rotary cleaning unit 1 relative to sleeve 1123 can be regulated, the structure is simple and easy to manufacture. It is easy to access and location is reliably controlled.

[0136] In some feasible embodiments provided by this disclosure, the second drive assembly 11 further includes a second housing 113 with one end open, and when the cleaning device 10 includes a first housing 6, the second housing 113 engages with the first housing 6, and the worm 1121, turbine 11221, swing arm 2 and connecting cylinder 11226 are located in the space enclosed by the second housing 113 and the first housing 6, the opening of the second housing 113 is located on the side away from the first housing 6, the bottom end of the sleeve 1123 is used to extend outside the opening of the second housing 113, the lifting drive unit 111 is located outside the second housing 113, and the worm 1121 is drilled into the second housing 113 and connected to the lifting drive unit 111.

[0137] Of these, the bottom end of the sleeve 1123 extends outside the opening of the second housing 113, allowing the rotary cleaning unit 1 connected to the sleeve 1123 to descend until it contacts the surface to be cleaned. At the same time, by maintaining a constant distance between the bottom end of the second housing 113 and the surface to be cleaned, the influence of the second housing 113 on the climbing and obstacle-crossing of the cleaning device 10 can be avoided.

[0138] Of these components, the lifting drive unit 111 is located outside the second housing 113, and the worm 1121 is drilled into the second housing 113 and connected to the lifting drive unit 111, thereby enabling the power of the lifting drive unit 111 to be transmitted from outside the second housing 113 to inside the second housing 113.

[0139] In the above embodiment, the second housing 113 is divided into a first mounting cavity 1131 and a second mounting cavity 1132, the turbine 11221 is located in the first mounting cavity 1131, the sleeve 1123 is located in the second mounting cavity 1132, the swing arm 2 extends to the first mounting cavity 1131 and the second mounting cavity 1132, and the first subgear 11222 is located in the swing arm 2. The turbine 11221 in the first mounting cavity 1131 is coaxially mounted, and the sleeve 1123 in the second mounting cavity 1132 is connected to the connecting cylinder 11226 on the swing arm 2. This allows the power of the lifting drive unit 111 to be transmitted to the sleeve 1123 through the first mounting cavity 1131 and the second mounting cavity 1132, thereby moving the rotary cleaning unit 1 to move up and down and rotate.

[0140] The shape of the second mounting cavity 1132 is matched to the movement space of the swing arm 2, so that the cavity walls of the second mounting cavity 1132 do not obstruct the movement of the swing arm 2, while simultaneously providing good protection for the swing arm 2. Furthermore, by reducing the volume of the second drive assembly 11 as much as possible, the structure of the first cleaning assembly is compact and meets the design needs of having a relatively small volume.

[0141] The second housing 113 further includes a bottom plate 1133, which is detachably connected to the cavity wall of the first mounting cavity 1131 so as to surround the turbine 11221 within the first mounting cavity 1131. The installation of the bottom plate 1133 provides good protection for the turbine 11221, reducing contamination of the turbine 11221 by contaminants, thereby extending the service life of the turbine 11221 and improving the reliability of the second drive assembly 11.

[0142] Specifically, the base plate 1133 may be detachably connected to the cavity wall of the first mounting cavity 1131 by means of screws, a locking structure, a tenon structure, a magnetic attraction structure, or the like.

[0143] Embodiments of the present invention provide a transmission device and a cleaning device 10, wherein one end of a swing arm 2 is rotatably connected to the main body of the cleaning device 10 and the other end is connected to a rotary cleaning unit 1, thereby giving the cleaning device 10 to which the transmission device is applied a pallet extension function, and the rotary cleaning unit 1 is driven to switch between a first position and a second position using the swing arm 2 according to the cleaning range needs, thereby moving the rotary cleaning unit 1 to an operating position that satisfies the corresponding cleaning range needs, thereby satisfying the needs of different mop ranges, expanding the mop range, improving the cleaning effect, improving the user's cleaning experience, and the rotary cleaning When the cleaning unit 1 moves from the first position to the second position, the rotation direction of the swing arm 2 is the same as the rotation direction of the rotating cleaning unit 1. As a result, the torque due to friction between the rotating cleaning unit 1 and the surface to be cleaned becomes an assisting force for the retraction of the rotating cleaning unit 1, enabling the rotating cleaning unit 1 to easily retract when it comes into contact with an obstacle. This prevents the posture of the cleaning device 10 from passively changing when the rotating cleaning unit 1 is blocked by an obstacle, allowing the cleaning device 10 to adhere closely to the boundary of the obstacle, enabling the cleaning device 10 to operate in complex environments, and improving the range of application of the cleaning device 10.

[0144] As those skilled in the art will understand, the above advantageous methods can be freely combined or superimposed, as long as they do not contradict each other.

[0145] The foregoing are merely preferred embodiments of the present application and do not limit it. Any modifications, equivalent substitutions, and improvements made without departing from the spirit and principles of the present application should all be included in the claims. The foregoing are merely preferred embodiments of the present application, and it should be noted that a person skilled in the art could make several further improvements and modifications without departing from the technical principles of the present application, and these improvements and modifications should also be considered within the scope of the claims. [Explanation of Symbols]

[0146] 1 Rotary cleaning unit, 2 Swing arm, 3 First drive assembly, 31 Telescopic drive member, 32 Transmission gear, 33 Second cam, 331 Sector-shaped tooth section, 332 Contact section, 333 First baffle, 334 Second baffle, 335 Roller, 4 Elastic member, 5 First cam, 51 Connecting section, 52 Protrusion, 6 First housing, 7 Position detection device, 71 First photoelectric switch, 72 Second photoelectric switch, 8 First position regulating member, 9 Second position regulating member, 10 Cleaning device, 11 Second drive assembly, 111 Lifting drive unit, 112 Connecting device, 1121 Worm, 1122 Gear set, 11221 Turbine, 11222 First subgear, 11223 First gear plate, 11224 Second gear plate, 11225 Third subgear, 11226 connecting tube, 11227 guide section, 1123 sleeve, 11231 insertion groove, 11232 guide groove, 11233 position regulating plane, 113 second housing, 1131 first mounting cavity, 1132 second mounting cavity, 1133 base plate.

Claims

1. A transmission device applied to a cleaning device (10), wherein the transmission device includes a swing arm (2) and a rotary cleaning unit (1), the swing arm (2) having one end rotatably connected to the body of the cleaning device (10) and the other end connected to the rotary cleaning unit (1), and the swing arm (2) drives the rotary cleaning unit (1) to move between a first position and a second position. A transmission device in which, when the rotary cleaning unit (1) is located in the second position, the area in which at least a portion of the rotary cleaning unit (1) is located outside the projection area of ​​the cleaning device (10) is greater than the area in which at least a portion of the rotary cleaning unit (1) is located outside the projection area of ​​the cleaning device (10) when the rotary cleaning unit (1) is located in the first position, and when the rotary cleaning unit (1) moves from the first position toward the second position, the rotation direction of the swing arm (2) is the same as the rotation direction of the rotary cleaning unit (1).

2. The rotation direction of the swing arm (2) is the same as the rotation direction of the rotary cleaning unit (1), specifically, The transmission device according to claim 1, wherein the direction of rotation is clockwise.

3. The rotation direction of the swing arm (2) is the same as the rotation direction of the rotary cleaning unit (1), specifically, The transmission device according to claim 1, wherein the direction of rotation is counterclockwise.

4. The transmission device according to any one of claims 1 to 3, further comprising a first drive assembly (3) and an elastic member (4), the elastic member (4) being connected to the swing arm (2), and the first drive assembly (3) engaging with the elastic member (4) to rotate the swing arm (2), thereby moving the rotating cleaning unit (1) between a first position and a second position.

5. The transmission device according to claim 4, wherein the first end of the elastic member (4) is connected to the swing arm (2), and the second end of the elastic member (4) is fixedly installed relative to the main body of the cleaning device (10).

6. The transmission device according to claim 5, further comprising a first cam (5), the first cam (5) being installed at one end of the swing arm (2) away from the rotating cleaning unit (1), and the first drive assembly (3) contacting a protrusion (52) of the first cam (5) in the process of the rotating cleaning unit (1) moving from the second position toward the first position.

7. The elastic member (4) is a tension spring, the first end of the tension spring is connected to the first cam (5), and the second end of the tension spring is fixed relative to the body of the cleaning device (10). Alternatively, the elastic member (4) is a torsion spring, the torsion spring is installed on the rotation axis of the first cam (5), the first end of the torsion spring is connected to the first cam (5), and the second end of the torsion spring is fixed relative to the body of the cleaning device (10). Alternatively, the transmission device according to claim 6, wherein the elastic member (4) is an elastic sheet, the first end of the elastic sheet is connected to the first cam (5), and the second end of the elastic sheet is fixed relative to the body of the cleaning device (10).

8. The first end of the elastic member (4) is connected to the first cam (5) and / or, The transmission device according to claim 6, wherein the first end of the elastic member (4) is connected to the swing arm (2).

9. The transmission device according to claim 8, wherein the first cam (5) is provided with a connecting portion (51) on its circumferential side, and the elastic member (4) is connected to the first cam (5) via the connecting portion (51).

10. The transmission device according to claim 6, wherein when the first cam (5) rotates along a first direction by the drive of the first drive assembly (3), the rotating cleaning unit (1) moves from the second position toward the first position.

11. The transmission device according to claim 6, wherein when the first cam (5) rotates along the second direction due to the action of the elastic member (4), the rotating cleaning unit (1) moves from the first position toward the second position.

12. The transmission device according to claim 6, wherein when the rotating cleaning unit (1) moves from the second position toward the first position, the elastic member (4) stores elastic energy by the drive of the first drive assembly (3).

13. The transmission device according to claim 6, wherein the elastic energy of the elastic member (4) is released when the rotating cleaning unit (1) moves from the first position to the second position.

14. The transmission device according to claim 6, wherein the first drive assembly (3) includes a first drive unit and a second cam (33), the first drive unit being connected to the second cam (33) and used to drive the second cam (33) to rotate, and the second cam (33) being in contact with the first cam (5) and used to move the first cam (5) to rotate.

15. The second cam (33) is installed at the output terminal of the first drive unit so that the first drive unit moves the second cam (33) to rotate. or The transmission device according to claim 14, wherein the output terminal of the first drive unit is transmitted to the second cam (33).

16. The transmission device according to claim 14, wherein the second cam (33) includes a fan-shaped tooth portion (331) and a contact portion (332), the first drive unit meshes with the fan-shaped tooth portion (331), the contact portion (332) contacts the first cam (5), and the first cam (5) is installed coaxially with the swing arm (2).

17. The transmission device according to claim 16, wherein the first drive unit includes an extendable drive member (31) and a transmission gear (32), the extendable drive member (31) is connected to the transmission gear (32), and the transmission gear (32) meshes with the fan-shaped teeth (331), so that the extendable drive member (31) is moved by the transmission gear (32) and the fan-shaped teeth (331) such that the contact portion (332) pushes and rotates the first cam (5), and the swing arm (2) rotates synchronously so that the rotary cleaning unit (1) moves in the direction from the second position to the first position.

18. When the rotary cleaning unit (1) is in the second position, the second cam ( The transmission device according to claim 14, wherein 33) is spaced apart from the first cam (5).

19. The transmission device according to claim 14, characterized in that a wear-resistant layer is installed on the outer walls of the first cam (5) and the second cam (33).

20. A roller (335) is installed on the second cam (33), and the second cam (33) contacts the first cam (5) via the roller (335), as described in claim 14.

21. A cleaning apparatus comprising a transmission device according to any one of claims 1 to 20.

22. The cleaning device (10) includes a first housing (6), the telescopic drive member (31) and the swing arm (2) are located outside the first housing (6), the transmission gear (32), the second cam (33), the first cam (5) and the elastic member (4) are located inside the first housing (6), the transmission gear (32) is power-connected to the telescopic drive member (31) by passing through the first housing (6), and the elastic member (4) has one end connected to the first housing (6) and the other end connected to the first cam (5), as described in claim 21.

23. The cleaning device according to claim 22, further comprising a position detection device (7), the position detection device (7) being installed in the first housing (6) and used to detect the rotational position of the second cam (33), the telescopic drive member (31) rotating or stopping rotation based on the detection result of the position detection device (7), and the telescopic drive member (31) rotating or stopping rotation based on the detection result of the position detection device (7).

24. The cleaning device according to claim 23, wherein the position detection device (7) includes a first photoelectric switch (71) and a second photoelectric switch (72) distributed on both sides of the second cam (33), the second cam (33) further includes a first baffle (333) and a second baffle (334) distributed on both sides of the contact portion (332), the first baffle (333) is inserted into the first photoelectric switch (71) and used to cause the first photoelectric switch (71) to change the detection signal, and the second baffle (334) is inserted into the second photoelectric switch (72) and used to cause the second photoelectric switch (72) to change the detection signal.

25. The cleaning device is The cleaning apparatus according to any one of claims 21 to 24, further comprising a rotation angle detection device installed on the telescopic drive member (31) for detecting the rotation angle of the output shaft of the telescopic drive member (31), wherein the telescopic drive member (31) further rotates or stops rotating based on the detection result of the rotation angle detection device.

26. A cleaning device according to any one of claims 21 to 24, wherein a first position restricting member (8) and a second position restricting member (9) are provided on the circumferential side of the first cam (5), the first position restricting member (8) is located on the side of the protrusion (52) away from the contact portion (332), and the first position restricting member (8) is used to restrict the rotation of the first cam (5) by contacting the protrusion (52), and the second position restricting member (9) is located on the side of the connecting portion (51) away from the contact portion (332), and the second position restricting member (9) is used to restrict the rotation of the first cam (5) by contacting the connecting portion (51).

27. The cleaning device according to claim 23, wherein the cleaning device (10) further includes a second drive assembly (11), the second drive assembly (11) being connected to the rotary cleaning unit (1) and used to drive the rotary cleaning unit (1) to move up and down.

28. The cleaning apparatus according to claim 27, wherein the second drive assembly (11) is further used to move the rotary cleaning unit (1) to vibrate and / or rotate about its own central axis as the center of rotation.

29. The second drive assembly (11) is The cleaning device according to claim 27, comprising a lifting drive unit (111) and a connecting device (112), wherein at least a portion of the connecting device (112) is installed in the swing arm (2) and connected to the rotary cleaning unit (1), and the lifting drive unit (111) drives the rotary cleaning unit (1) to lift, lower and rotate via the connecting device (112).

30. The aforementioned connecting device (112) is A cleaning device according to claim 29, comprising a power-connected worm (1121), a gear set (1122), and a sleeve (1123), wherein the worm (1121) is power-connected to the lifting drive unit (111), the gear set (1122) is installed in the swing arm (2), the sleeve (1123) is connected to the rotary cleaning unit (1), and the worm (1121) moves the rotary cleaning unit (1) to lift and rotate by driving the sleeve (1123) via the gear set (1122) to lift and rotate.

31. The aforementioned gear set (1122) is It includes a turbine (11221), a first subgear (11222), a second subgear, a third subgear (11225), and a connecting cylinder (11226), The turbine (11221) and the first subgear (11222) are installed coaxially, the turbine (11221) is located outside the swing arm (2) and meshes with the worm (1121), the first subgear (11222), the second subgear and the third subgear (11225) are all located inside the swing arm (2), the second subgear includes a first gear plate (11223) and a second gear plate (11224) installed coaxially, the first subgear (11222) meshes with the first gear plate (11223) and the second gear plate The cleaning device according to claim 30, wherein gear (11224) is mounted coaxially with the first gear plate (11223) and meshes with the third subgear (11225), the connecting cylinder (11226) is mounted coaxially with the third subgear (11225) and is located outside the swing arm (2), the connecting cylinder (11226) is screwed into the sleeve (1123), and as the gear set (1122) rotates, the sleeve (1123) and the connecting cylinder (11226) rotate relative to each other, causing the sleeve (1123) to move up or down relative to the connecting cylinder (11226).

32. Guide portions (11227) arranged in a helical direction are installed on the cylindrical wall of the connecting cylinder (11226). An insertion groove (11231) for accommodating the connecting cylinder (11226) is provided in the cylindrical wall of the sleeve (1123), and a helical guide groove (11232) for accommodating the guide portion (11227) is provided in the groove wall of the insertion groove (11231). The cleaning device according to claim 31, wherein the guide portion (11227) is a spiral boss or a plurality of spaced-apart projections.

33. A stopper rib is installed near the opening of the groove wall of the insertion groove (11231), and the stopper rib is used to contact the guide portion (11227) and restrict the vertical movement of the sleeve (1123) relative to the connecting cylinder (11226). The cleaning device according to claim 32, wherein the guide portion (11227) abuts against the bottom of the insertion groove (11231) to restrict the vertical movement of the sleeve (1123) relative to the connecting cylinder (11226).

34. A position-regulating plane (11233) that matches the rotating cleaning unit (1) is provided on the inner wall of the sleeve (1123). The cleaning device according to claim 33, wherein the axial cross-section of the sleeve (1123) is hexagonal.

35. The second drive assembly (11) further includes a second housing (113) with one end open, and if the cleaning device (10) includes the first housing (6), the second housing (113) engages with the first housing (6), and the worm (1121), the turbine (11221), the swing arm (2) and the connecting cylinder (11226) are connected by the second housing (113) and the first housing (6). The cleaning device according to claim 33, wherein the device is located within an enclosed space, the opening of the second housing (113) is located away from the first housing (6), the bottom end of the sleeve (1123) extends outside the opening of the second housing (113), the lifting drive unit (111) is located outside the second housing (113), and the worm (1121) is drilled into the second housing (113) and connected to the lifting drive unit (111).

36. The second housing (113) is divided into a first mounting cavity (1131) and a second mounting cavity (1132), the turbine (11221) is located in the first mounting cavity (1131), the sleeve (1123) is located in the second mounting cavity (1132), the swing arm (2) extends to the first mounting cavity (1131) and the second mounting cavity (1132), and the shape of the second mounting cavity (1132) is adapted to the movement space of the swing arm (2). The cleaning apparatus according to claim 35, wherein the second housing (113) further includes a bottom plate (1133), the bottom plate (1133) being detachably connected to the cavity wall of the first mounting cavity (1131) so as to surround the turbine (11221) within the first mounting cavity (1131).

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