A cleaning component for a cleaning device and a cleaning device.

Abstract

This invention discloses a cleaning component for a cleaning device. The component includes: a cleaning body with an internal cavity and a channel connecting the cavity to the outside; a rotating block disposed within the cavity and capable of sliding relative to the cleaning body along the channel; and a transmission block fixedly mounted between the rotating block and the output shaft of a power source, capable of driving the rotating block to rotate under the drive of the power source. The transmission block and the cleaning body are connected via a helical ramp structure, and a compressed elastic element is provided between the rotating block and the cleaning body, such that when the transmission block rotates forward, the cleaning body descends to a first predetermined position suitable for cleaning; and when the transmission block rotates in reverse, the cleaning body rises to a second predetermined position suitable for avoiding obstacles. A cleaning device equipped with the above-described cleaning component is also disclosed. Applying this invention allows for obstacle avoidance by raising the body and normal cleaning work by lowering it during operation.

Description

Technical Field

[0001] This invention relates to the field of cleaning equipment technology, and more specifically to a cleaning component and cleaning equipment for cleaning equipment. Background Technology

[0002] With the development of technology, more and more cleaning tasks are being replaced by smart products, such as sweeping, mopping, and wall painting. These cleaning devices generally include a power source and cleaning components. The power source drives the cleaning components to rotate and clean the surface. Taking the commonly seen robot vacuum cleaner as an example, when performing cleaning tasks, the robot vacuum cleaner mainly relies on its central roller brush to pick up the dust on the ground, and the airflow generated by the fan inside the main unit sucks the dust into the dust box. Since the area that the roller brush can cover is limited, two side brushes are arranged on both sides of the front roller brush of the robot vacuum cleaner. When the side brushes rotate on the ground, they gather the dust on both sides of the roller brush into the area that the roller brush can cover, making it easier for the roller brush to clean, thereby increasing the coverage area when the robot vacuum cleaner cleans. Most robotic vacuum cleaners on the market now have one or two side brushes mounted on the bottom of the machine. These side brushes are fixed to the chassis and rotate continuously during operation. When the machine is climbing over obstacles (such as carpets or child safety mats), these side brushes, as cleaning components, can obstruct the machine's ascent or roll up the carpet, causing malfunctions and severely impacting the user experience. Some cleaning devices on the market design their cleaning components as height-adjustable structures. However, achieving this requires an additional drive and transmission mechanism, resulting in a complex structure. This increases assembly difficulty, maintenance difficulty, and manufacturing costs. Furthermore, the additional space needed for the drive and transmission mechanisms increases the overall design complexity and size of the cleaning device, contradicting the trend towards miniaturization. Summary of the Invention

[0003] The present invention aims to address, to a certain extent, one of the technical problems in related technologies. To this end, the present invention provides a cleaning component for cleaning equipment and a cleaning device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a cleaning component for a cleaning device, used to rotate under the drive of a power source to clean a surface to be cleaned, the cleaning component comprising: a cleaning body having a cavity formed therein and a channel communicating with the outside; a rotating block disposed within the cavity and capable of sliding relative to the cleaning body along the channel; and a transmission block fixedly installed between the rotating block and the output shaft of the power source and capable of driving the rotating block to rotate under the drive of the power source; wherein, the transmission block and the cleaning body are connected by a helical ramp structure, and an elastic element in a compressed state is provided between the rotating block and the cleaning body, so that when the transmission block rotates forward, the cleaning body is lowered to a first set position suitable for cleaning by the pressure of the transmission block; when the transmission block rotates in reverse, the cleaning body is raised to a second set position suitable for avoiding obstacles under the action of the elastic element.

[0005] The application of this invention has the following beneficial effects: By setting a transmission block between the cleaning body and the power source, and setting a spiral ramp structure between the transmission block and the cleaning body for transmission cooperation, when the transmission block rotates forward, the cleaning body will not rotate synchronously with the transmission block due to inertia. Since the transmission block only rotates and does not move up or down, the spiral ramp structure will exert a pushing force on the cleaning body, driving the cleaning body to descend. When the transmission block rotates in reverse, again based on inertia, the cleaning body will not rotate synchronously with the transmission block. Under the elastic force of the elastic element, the cleaning body is driven to rise and return to its original position. In this way, the purpose of switching the cleaning body between a first set position and a second set position can be achieved. At the same time, this cleaning component cleverly utilizes the principle of inertia, can be implemented with a simple structure, occupies little space, conforms to the trend of equipment miniaturization, and has good adaptability to existing cleaning equipment (because of its small footprint, it generally does not require large external design of existing cleaning equipment), and has a very low manufacturing cost.

[0006] Optionally, the spiral ramp structure includes a first spiral ramp formed on the transmission block and a second spiral ramp formed on the cleaning body, wherein the first spiral ramp and the second spiral ramp are adapted to each other.

[0007] Optionally, both the first spiral ramp and the second spiral ramp have continuous ramp segments and planar segments, and the planar segments on the first spiral ramp and the second spiral ramp press against each other when the cleaning body is in a first set position.

[0008] Optionally, both the first spiral ramp and the second spiral ramp also have a first limiting part located on one side of the ramp section and a second limiting part located on one side of the planar section. The first limiting part and the second limiting part are used to limit the lifting stroke of the cleaning body between a first set position and a second set position.

[0009] Optionally, the cleaning body includes a cleaning seat and a cover detachably mounted on the cleaning seat, wherein the cover and the cleaning seat form the cavity, and the cover forms the channel; the elastic element is located within the cavity, and the spiral ramp structure is formed between the cover and the transmission block.

[0010] Optionally, the elastic element is a spring, the rotating block has a surrounding edge, one end of the spring is disposed on the inner wall of the cover, and the other end abuts against the surrounding edge.

[0011] Optionally, the cleaning assembly also includes a mounting base configured to be securely mounted on the cleaning device. A hysteresis structure is provided between the mounting base and the cleaning body. This hysteresis structure delays the rotational movement of the cleaning body through friction when the transmission block begins to rotate forward. In addition to inertia, the hysteresis structure further delays the rotational movement of the cleaning body through friction when the transmission block begins to rotate forward, thereby further enhancing the success rate of lifting and lowering control of the cleaning body.

[0012] Optionally, the fixing base is cylindrical, and both the transmission block and the cleaning body extend into the fixing base. The hysteresis structure is disposed between the inner wall of the fixing base and the cleaning body. Designing the fixing base as a cylinder facilitates the installation of the hysteresis structure and also provides protection for the transmission block and cleaning body extending into it, reducing the probability of debris entering the cavity.

[0013] Optionally, the hysteresis structure includes a spiral ramp formed on the inner wall of the mounting base and a protrusion formed on the cleaning body. The protrusion slides along the spiral ramp as the cleaning body descends from a second predetermined position to a first predetermined position. When the cleaning body is in the first predetermined position, the protrusion separates from the spiral ramp and has a gap with the inner wall of the mounting base. Designing the hysteresis structure as described above achieves a hysteresis effect by generating friction through the sliding of the protrusion and the spiral ramp. Furthermore, when the cleaning body is in the first predetermined position, the protrusion separates from the spiral ramp and has a gap with the inner wall of the mounting base. This prevents the hysteresis structure from functioning when the cleaning body is in the first predetermined position, thus preventing continuous friction between the protrusion and the inner wall of the mounting base during the cleaning body's operation, avoiding interference with normal cleaning work, and extending the service life of the cleaning components.

[0014] Optionally, the inner wall of the fixing base is provided with a spiral step, and the surface of the step forms the spiral slope.

[0015] Optionally, the spiral landslide has a spiral landslide section and a third limiting part formed at one end of the spiral landslide section, and the protrusion abuts against the third limiting part when the cleaning body is in a second set position.

[0016] Furthermore, the present invention also provides a cleaning device, including a housing, within which a power source and a control unit are disposed. A cleaning component for the cleaning device as described in any of the above technical solutions is disposed below the housing. The transmission block is fixedly mounted on the output shaft of the power source. The control unit is signal-connected to a sensor for real-time monitoring of the environment of the surface being cleaned, and the control unit controls the power source to drive the transmission block in forward and reverse rotation based on the information monitored by the sensor. The reasoning process for the beneficial effects of the cleaning device provided by the present invention and the aforementioned cleaning component is similar, and will not be repeated here.

[0017] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. The preferred embodiments or means of the present invention will be shown in detail in conjunction with the accompanying drawings, but are not intended to limit the technical solutions of the present invention. In addition, each of these features, elements and components appearing in the following text and drawings is a plurality of, and different symbols or numbers are used for convenience of representation, but all represent parts with the same or similar construction or function. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] Figure 1 A schematic diagram of the structure of a cleaning device and a drive motor assembled together, provided by an embodiment of the present invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the structure of the cleaning component and the drive motor assembled together in the embodiment. Figure 2 ;

[0021] Figure 3 An exploded view of the assembly of the cleaning components and the drive motor provided in the embodiment;

[0022] Figure 4 A cross-sectional view of the cleaning body relative to the rotating block when it descends to the first set position;

[0023] Figure 5 A cross-sectional view of the cleaning body relative to the rotating block when it rises to the second set position;

[0024] Figure 6 This is a schematic diagram of the cover structure;

[0025] Figure 7 A side view of the cleaning assembly and drive motor assembled together, as provided in the embodiment;

[0026] Figure 8 This is a schematic diagram of the structure of the fixing base in the embodiment.

[0027] Among them, 1. Cleaning body, 10. Cleaning seat, 100. Brush body, 11. Cover, 110. Channel, 111. Second spiral ramp, 112. Protrusion, 12. Cavity, 2. Rotating block, 20. Surrounding edge, 3. Transmission block, 30. First spiral ramp, 31. Claw, 4. Spiral ramp structure, 40. Ramp section, 41. Planar section, 42. First limiting part, 43. Second limiting part, 5. Fixed seat, 50. Spiral slide, 500. Spiral slide section, 501. Third limiting part, 6. Elastic element, 7. Drive motor, 70. Output shaft. Detailed Implementation

[0028] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain the present invention and should not be construed as limiting the invention.

[0029] The terms "an embodiment," "example," or "example" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this application. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0030] Example: This example provides a cleaning component for a cleaning device. This cleaning component can rotate under the drive of a power source inside the cleaning device to clean the surface being cleaned. In this example, the cleaning device is described using a sweeper as an example, and the cleaning component is described using the side brush assembly used in a sweeper as an example. It should be understood that the cleaning component and cleaning device are not limited to the aforementioned side brush assembly and sweeper. Figures 1 to 5As shown, the cleaning assembly includes a cleaning body 1, a rotating block 2, a transmission block 3, an elastic element 6, and a fixed base 5. The cleaning body 1 includes a cleaning seat 10 and a cover 11. Three brushes 100 are circumferentially arranged on the cleaning seat 10 (the number and structure of the brushes are not limited in this application; they can be set according to actual needs). During the rotation of the cleaning assembly, the three brushes 100 can clean the surface being cleaned. The cover 11 is detachably mounted on the cleaning seat 10. Specifically, in this embodiment, the cover 11 is snapped onto the cleaning seat 10 using a snap-fit ​​structure. In other embodiments, threaded connections, plug-in connections, or other methods can also be used to achieve a detachable connection. Furthermore, a cavity 12 is formed between the cover 11 and the cleaning seat 10, and the cover 11 has a channel 110 communicating with the outside. The rotating block 2 and the elastic element 6 are both assembled within the cavity 12, and the elastic element 6 is positioned between the rotating block 2 and the cover 11 and compressed by both. In this embodiment, the rotating block 2 can slide relative to the cleaning body 1 along the channel 110. When this relative sliding occurs, the cleaning body 1 rises and falls, and the compression degree of the elastic element 6 also changes accordingly. The transmission block 3 is located outside the cavity 12, but the transmission block 3 is provided with a claw 31 extending into the cavity 12. The transmission block 3 is engaged and fixed with the rotating block 2 by the claw 31. The transmission block 3 is used to assemble with the output shaft 70 of the power source of the cleaning equipment. In this embodiment, the power source is a drive motor 7. Thus, under the drive of the drive motor 7, both the transmission block 3 and the rotating block 2 can rotate. Through the above components, and in addition, this embodiment designs the transmission block 3 and the cleaning body 1 to be connected by a spiral ramp structure 4, which can achieve the following purpose: when the transmission block 3 rotates forward, the cleaning body 1 is lowered to a first set position suitable for cleaning by the pressure of the transmission block 3; when the transmission block 3 rotates in reverse, the cleaning body 1 is raised to a second set position suitable for avoiding obstacles under the action of the elastic element 6.

[0031] It should be noted that, Figure 1 and Figure 2 To illustrate the cleaning body 1 and the transmission block 3, the fixing seat 5 located outside the cleaning body 1 and the transmission block 3 is not shown. Figure 3 The exploded view shows the mounting base 5. (By...) Figure 1 , Figure 2 and Figure 3 The protruding lugs on the housing of the drive motor 7 are easily understood. In this embodiment, the mounting base 5 is connected to the housing of the drive motor 7 by means of connecting lugs and bolt threads. After being installed on the housing of the drive motor 7, the mounting base 5 covers the outside of the transmission block 3 and part of the cleaning body 1. The mounting base 5 provided in this embodiment is a preferred solution. In some other embodiments, the mounting base 5 may not be provided, such as... Figure 1 and Figure 2The structure of the cleaning components shown is the same. The function of the mounting bracket 5 will be explained in detail later.

[0032] By setting a transmission block 3 between the cleaning body 1 and the drive motor 7, and a spiral ramp structure 4 between the transmission block 3 and the cleaning body 1 for transmission cooperation, when the transmission block 3 rotates forward, the cleaning body 1 will not rotate synchronously with the transmission block 3 due to inertia. Since the transmission block 3 only rotates and does not move up or down, the spiral ramp structure 4 will apply a pushing force to the cleaning body 1, driving the cleaning body 1 to descend. When the transmission block 3 rotates in reverse, again based on inertia, the cleaning body 1 will not rotate synchronously with the transmission block 3. Under the elastic force of the elastic element 6, the cleaning body 1 is driven to rise and return to its original position. In this way, the purpose of switching the cleaning body 1 between the first set position and the second set position can be achieved. This cleaning component cleverly utilizes the principle of inertia, and can achieve lifting and lowering with a simple structure. It occupies little space, conforms to the trend of equipment miniaturization, and has good adaptability to existing cleaning equipment (because it occupies little space, it generally does not require a large external design for existing cleaning equipment), and the manufacturing cost is also very low. Specifically, in this embodiment, the transmission block 3 is directly assembled with the output shaft 70 of the power source, without a transmission mechanism in between, making the structure more compact.

[0033] It should also be noted that in this embodiment, "forward rotation" does not specifically refer to clockwise or counterclockwise rotation, but is specifically set according to the needs of the cleaning equipment. For example, in this embodiment, counterclockwise rotation is used as the direction of forward rotation, and the corresponding reverse rotation refers to clockwise rotation. In addition, the "rising" or "falling" mentioned in this embodiment refers to the movement relative to the surface being cleaned.

[0034] Cleaning equipment equipped with this cleaning component generally includes a housing, within which a power source and a control unit are housed. During assembly, the cleaning component is installed below the housing, and the transmission block 3 is fixedly installed to the output shaft 70 of the power source. When using a cleaning equipment equipped with the cleaning component provided in this embodiment, the control unit is signal-connected to a sensor for real-time monitoring of the environment of the surface being cleaned. The control unit controls the power source to drive the transmission block 3 in both forward and reverse directions based on the information detected by the sensor. That is, when the sensor detects an obstacle that needs to be crossed on the surface being inspected, it transmits a signal to the control unit. The control unit then controls the power source to change the rotation direction of the output shaft 70, causing the cleaning component to rise to a second preset position. After the cleaning equipment leaves the obstacle, the control unit controls the power source to change the rotation direction of the output shaft 70, causing the cleaning component to descend to a first preset position, and then continues the cleaning work. In the initial state (i.e., before the cleaning equipment starts working), the cleaning component is generally set to the raised state, that is, the cleaning body 1 in the cleaning component is in the second preset position. When the cleaning equipment is ready to work, the transmission block 3 is first controlled to rotate forward, causing the cleaning body 1 to descend to the first preset position. Continuing to rotate forward will cause the cleaning body 1 to follow the forward rotation and perform the cleaning work. After avoiding obstacles or completing the cleaning work, the transmission block 3 is controlled to rotate in reverse, causing the cleaning body 1 to rise to the second preset position. The advantage of this design is that in the second preset position, the elastic element is less compressed and deformed, which is beneficial to the service life of the cleaning components.

[0035] The spiral ramp structure 4 in this embodiment includes a first spiral ramp 30 formed on the transmission block 3 and a second spiral ramp 111 formed on the cleaning body 1. The first spiral ramp 30 and the second spiral ramp 111 are adapted to each other. Both the first spiral ramp 30 and the second spiral ramp 111 have continuous ramp sections and planar sections, combined with... Figure 6 As shown, this embodiment uses the first spiral ramp 30 located on the cleaning body 1 (i.e., on the cover 11) as an example for explanation. When the transmission block 3 rotates clockwise, as described above, because the inertial cleaning body 1 cannot instantaneously and synchronously follow the clockwise rotation of the transmission block 3, the ramp segment on the first spiral ramp 30 will exert pressure on the ramp segment 40 on the second spiral ramp 111. Under the pressure, the cleaning body 1 will descend until it reaches the first set position. When the cleaning body 1 descends to the first set position, the planar segment on the first spiral ramp 30 and the planar segment 41 on the second spiral ramp 111 press against each other. Thus, although the elastic element 6 is compressed at this time, the mutual pressing of the planar segment on the first spiral ramp 30 and the planar segment 41 on the second spiral ramp 111 forms a limiting effect, allowing the cleaning body 1 to remain at the first set position (it can only rotate with the transmission block 3, and cannot rise or fall).

[0036] Furthermore, in this embodiment, both the first spiral ramp 30 and the second spiral ramp 111 also have a first limiting part 42 located on one side of the ramp section 40 and a second limiting part 43 located on one side of the planar section 41. The first limiting part 42 and the second limiting part 43 are used to limit the lifting stroke of the cleaning body 1 between a first set position and a second set position. Figure 6 As shown, this embodiment uses the first spiral ramp 30 located on the cleaning body 1 (i.e., on the cover 11) as an example for explanation. Combined with... Figure 1 and Figure 6 As shown, when the cleaning body 1 is in the second set position, the first limiting part on the first spiral ramp 30 and the first limiting part 42 on the second spiral ramp 111 come into contact, and the two cooperate to restrict the cleaning body 1 to the second set position, preventing it from rising further. Figure 2 , Figure 6 and Figure 7 As shown, both the first spiral ramp 30 on the transmission block 3 and the second spiral ramp 111 on the cleaning body 1 have a second limiting part 43. When the cleaning body 1 is in the first set position, the second limiting part on the first spiral ramp 30 and the tail of the ramp segment 40 on the second spiral ramp 111 contact to form a limit, and the second limiting part 43 on the second spiral ramp 111 and the tail of the ramp segment 40 on the first spiral ramp 30 contact to form a limit, thus restricting the cleaning body 1 to the first set position and preventing it from descending further. Figure 7 The diagram shows a cleaning body 1 about to descend to the first set position, at which point the planar segment on the first spiral ramp 30 and the planar segment 41 on the second spiral ramp 111 are about to come into contact with each other.

[0037] As mentioned above, the cleaning body 1 in this embodiment includes a cleaning seat 10 and a cover 11 detachably mounted on the cleaning seat 10. The advantage of this structure is that it facilitates assembly. When assembling the cleaning assembly, the elastic member 6 can be assembled with the cover 11 first, and then the claw 31 of the transmission block 3 can be passed through the channel 110 on the cover 11 and assembled with the rotating block 2. At the same time, the elastic member 6 is assembled with the rotating block 2. Then, the assembled whole is assembled with the cleaning seat 10. This step only requires the cover 11 to be snapped onto the cleaning seat 10. It can be seen that the cleaning body 1 is set with the structure in this embodiment for the purpose of facilitating assembly. In other embodiments, the cleaning body can also be designed with other forms of structure, as long as it can form a cavity for the rotating block and the elastic member to be inserted and form a channel that can slide up and down relative to the rotating block, and at the same time form a second spiral ramp on its outside. For example, the cleaning body can be designed as a cylindrical shell with an internal cavity, a second helical ramp on the outside, a channel at the top, and a mounting hole at the bottom for the rotating block and elastic element to be inserted. In this embodiment, the elastic element 6 is a spring, the rotating block 2 has a surrounding edge 20, one end of the spring is disposed on the inner wall of the cover 11, and the other end presses against the surrounding edge 20. It is understood that in other embodiments, the elastic element 6 can also be a spring sheet or other similar component.

[0038] As mentioned above, this embodiment provides a cleaning assembly with a mounting base 5, which is configured to be fixedly installed on a cleaning device (in this embodiment, the mounting base is installed on the housing of the drive motor; alternatively, the mounting base can be installed on the housing of the cleaning device). A hysteresis structure is provided between the mounting base 5 and the cleaning body 1. This hysteresis structure is used to delay the rotational movement of the cleaning body 1 through friction when the transmission block 3 begins to rotate forward. Thus, in addition to inertia, the hysteresis structure further delays the rotational movement of the cleaning body 1 through friction when the transmission block 3 begins to rotate forward, further enhancing the success rate of lifting and lowering control of the cleaning body 1. Figure 8 As shown in the figure, in this embodiment, the fixed base 5 is cylindrical, and both the transmission block 3 and the cleaning body 1 extend into the fixed base 5. The hysteresis structure is disposed between the inner wall of the fixed base 5 and the cleaning body 1. Designing the fixed base 5 as a cylinder facilitates the installation of the hysteresis structure and also facilitates the protection of the transmission block 3 and the cleaning body 1 extending into it, reducing the probability of debris entering the cavity 12.

[0039] Combination Figure 6 and Figure 8As shown, the hysteresis structure in this embodiment includes a spiral ramp 50 formed on the inner wall of the fixed base 5 and a protrusion 112 formed on the cleaning body 1. The protrusion 112 is configured to slide along the spiral ramp 50. Simultaneously, the protrusion 112 is configured to slide along the spiral ramp 50 during the descent of the cleaning body 1 from the second set position to the first set position. When the cleaning body 1 is at the first set position, the protrusion 112 separates from the spiral ramp 50 and has a gap with the inner wall of the fixed base 5. The working principle of the protrusion 112 and the spiral ramp 50 is explained in conjunction with the lifting and lowering process of the cleaning body 1: When the transmission block 3 begins to rotate forward, due to inertia, the cleaning body 1 will not instantly follow the rotation of the transmission block 3. Under the pressure of the transmission block 3, the cleaning body 1 moves downward. Since the protrusion 112 slides on the spiral ramp 50, the friction between the two further makes it difficult for the cleaning body 1 to follow the forward rotation of the transmission block 3. During this process, the cleaning body 1 descends to the first set position in a spiral motion. The cleaning body 1 then rotates forward with the transmission block 3 to perform normal cleaning work. When it is necessary to lift the cleaning body 1, the transmission block 3 reverses direction. Due to inertia, the cleaning body 1 still rotates forward, and the planar segments 41 on both disengage and lose their limiting function. Under the elastic force of the elastic element 6, the cleaning body 1 will rise to the second set position. The upward movement of the cleaning body 1 may have three forms, mainly determined by the following factors: the position of the projection of the protrusion 112 in the vertical direction relative to the spiral ramp 50 at the instant when the transmission block 3 changes from forward to reverse rotation. If the projection of the protrusion 112 in the vertical direction falls on the tail end of the spiral slope 50, then the protrusion 112 will instantly contact the spiral slope 50 and slide along the spiral slope 50, and then the cleaning body 1 will rise to the second set position in a spiral motion; if the projection of the protrusion 112 in the vertical direction falls on the head end of the spiral slope 50, then the cleaning body 1 will rise to the second set position in a roughly straight line motion; if the projection of the protrusion 112 in the vertical direction falls between the head and tail of the spiral slope 50, then the cleaning body 1 will first experience a short straight rise and then rise to the second set position in a spiral motion.

[0040] The hysteresis structure is designed as described above. On the one hand, friction is generated by the sliding of the protrusion 112 and the spiral ramp 50, achieving a hysteresis effect. On the other hand, when the cleaning body 1 is in the first set position, the protrusion 112 separates from the spiral ramp 50 and has a gap with the inner wall of the fixing seat 5. Thus, when the cleaning body 1 is in the first set position, the hysteresis structure will no longer function, preventing the protrusion 112 and the inner wall of the fixing seat 5 from rubbing against each other during the operation of the cleaning body 1, avoiding affecting normal cleaning work, and also extending the service life of the cleaning component. For ease of manufacturing, the inner wall of the fixing seat 5 in this embodiment is provided with a spiral step, and the surface of the step forms the spiral ramp 50.

[0041] Furthermore, in this embodiment, the spiral landslide 50 has a spiral landslide section 500 and a third limiting part 501 formed at one end of the spiral landslide section 500. The protrusion 112 abuts against the third limiting part 501 when the cleaning body 1 is in the second set position. The function of the third limiting part 501 is similar to that of the first limiting part 42, both of which play a limiting role when the cleaning body 1 is in the second set position.

[0042] This embodiment illustrates a preferred hysteresis structure. In other embodiments, the hysteresis structure can be simply designed as a protrusion formed on the inner wall of the mounting base, or a mounting bracket can be directly fixed from the housing of the cleaning device or the housing of the drive motor without using a mounting base, with the aforementioned protrusion formed on the mounting bracket. The hysteresis effect is achieved by the friction between the protrusion and the lug. The protrusion can either mimic the shape of the spiral ramp in this application, generating friction with the lug during the entire descent of the cleaning body; or it can be designed as a block, causing friction between the protrusion and the outer surface of the cleaning body during its descent.

[0043] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the present invention will be included within the scope of the claims.

Claims

1. A cleaning component for a cleaning device, used to rotate under the drive of a power source to clean a surface to be cleaned, characterized in that, The cleaning component includes: The cleaning body (1) has a cavity (12) formed inside and a channel (110) connecting the cavity (12) to the outside; A rotating block (2) is disposed within the cavity (12) and is capable of sliding relative to the cleaning body (1) along the channel (110); and, The transmission block (3) is fixedly installed between the rotating block (2) and the output shaft of the power source and can drive the rotating block (2) to rotate under the drive of the power source; The transmission block (3) and the cleaning body (1) are connected by a spiral ramp structure (4). The spiral ramp structure (4) includes a first spiral ramp (30) formed on the transmission block (3) and a second spiral ramp (111) formed on the cleaning body (1). The first spiral ramp (30) and the second spiral ramp (111) are adapted to each other. An elastic element (6) in a compressed state is provided between the rotating block (2) and the cleaning body (1) so that when the transmission block (3) rotates forward, the cleaning body (1) is lowered to a first set position suitable for cleaning by the pressure of the transmission block (3); when the transmission block (3) rotates in reverse, the cleaning body (1) rises to a second set position suitable for avoiding obstacles under the action of the elastic element (6).

2. The cleaning component for cleaning equipment as described in claim 1, characterized in that, The first spiral ramp (30) and the second spiral ramp (111) each have a continuous ramp segment (40) and a planar segment (41). The planar segment (41) on the first spiral ramp (30) and the planar segment (41) on the second spiral ramp (111) press against each other when the cleaning body (1) is in the first set position.

3. The cleaning component for cleaning equipment as described in claim 2, characterized in that, The first spiral ramp (30) and the second spiral ramp (111) each have a first limiting part (42) located on one side of the ramp section (40) and a second limiting part (43) located on one side of the plane section (41). The first limiting part (42) and the second limiting part (43) are used to limit the lifting stroke of the cleaning body (1) between a first set position and a second set position.

4. The cleaning component for cleaning equipment as described in claim 1, characterized in that, The cleaning body (1) includes a cleaning seat (10) and a cover (11) detachably mounted on the cleaning seat (10), wherein the cover (11) and the cleaning seat (10) form the cavity (12), and the cover (11) forms the channel (110); The elastic element (6) is located inside the cavity (12), and the spiral ramp structure (4) is formed between the cover (11) and the transmission block (3).

5. The cleaning component for a cleaning device as described in claim 4, characterized in that, The elastic element (6) is a spring, the rotating block (2) has a surrounding edge (20), one end of the spring is disposed on the inner wall of the cover (11), and the other end presses against the surrounding edge (20).

6. The cleaning component for a cleaning device as described in claim 1 or 4, characterized in that, The cleaning assembly also includes a mounting base (5) configured to be fixedly installed on the cleaning device. A hysteresis structure is provided between the mounting base (5) and the cleaning body (1). The hysteresis structure is used to delay the rotation of the cleaning body (1) by friction when the transmission block (3) starts to rotate forward.

7. The cleaning component for a cleaning device as described in claim 6, characterized in that, The fixed seat (5) is cylindrical, and the transmission block (3) and the cleaning body (1) both extend into the fixed seat (5). The hysteresis structure is disposed between the inner wall of the fixed seat (5) and the cleaning body (1).

8. The cleaning component for a cleaning device as described in claim 7, characterized in that, The hysteresis structure includes a spiral ramp (50) formed on the inner wall of the fixed base (5) and a protrusion (112) formed on the cleaning body (1). The protrusion (112) slides along the spiral ramp (50) as the cleaning body (1) descends from the second set position to the first set position. The protrusion (112) separates from the spiral ramp (50) and has a gap with the inner wall of the fixed base (5) when the cleaning body (1) is in the first set position.

9. The cleaning component for a cleaning device as described in claim 8, characterized in that, The inner wall of the fixed base (5) is provided with a spiral step, and the surface of the step forms the spiral slope (50).

10. The cleaning component for a cleaning device as described in claim 8, characterized in that, The spiral landslide (50) has a spiral landslide section (500) and a third limiting part (501) formed at one end of the spiral landslide section (500), and the protrusion (112) abuts against the third limiting part (501) when the cleaning body (1) is in the second set position.

11. A cleaning device, comprising a housing, wherein a power source and a control unit are disposed within the housing, characterized in that, The housing is provided with a cleaning component for cleaning equipment as described in any one of claims 1 to 10, and the transmission block (3) is fixedly mounted on the output shaft of the power source; The control unit is connected to a sensor for real-time monitoring of the environment of the surface being cleaned, and the control unit controls the power source to drive the transmission block (3) to rotate forward and backward based on the information monitored by the sensor.

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