Differential cleaning structure and cup cleaning device

Abstract

The application discloses a differential cleaning structure and a cup cleaning device. The cleaning structure comprises a mounting seat and a cleaning assembly. The cleaning assembly comprises at least two cleaning members arranged at intervals. A cup to be cleaned is sleeved on one of the cleaning members, and the outer surfaces of the two cleaning members hold the cup wall of the cup. At least one of the cleaning members is rotationally installed on the mounting seat. The two cleaning members are formed to have different rotating speeds, so that the two cleaning members respectively form sliding friction with the inner and outer wall surfaces of the cup. The application forms a dynamic differential friction interface through the at least two cleaning members. The adjustable rotating speed design can be used for directional optimization according to the cleaning requirements of the inner wall or the outer wall of the cup.

Description

Technical Field

[0001] This application relates to the technical field of cup cleaning devices, and more particularly to a differential cleaning structure and a cup cleaning device. Background Technology

[0002] In everyday household cleaning, teacups often develop stubborn stains such as tea stains and coffee stains on their inner walls after use, while fingerprints and water stains easily remain on the rims and outer walls. Traditional hand washing requires repeated scrubbing and is difficult to thoroughly clean the inside of slender cups, especially for teacups with carved patterns or narrow mouths, resulting in many hard-to-reach areas and being time-consuming and laborious. While existing household cleaning machines can process tableware in batches, the water jets from their fixed spray arms are insufficient for targeted cleaning of the curved surfaces of teacups, and high-temperature drying can leave watermarks on the glass walls. Small ultrasonic cleaners are not effective at removing thick tea stains and cannot simultaneously clean the outer walls of the cups. Utility Model Content

[0003] The purpose of this application is to provide a differential cleaning structure and a cup cleaning device to solve the technical problems of the prior art.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] On one hand, a differential cleaning structure is provided, including: a mounting base and a cleaning assembly. The cleaning assembly includes at least two cleaning components spaced apart. A cup to be cleaned is fitted onto one of the cleaning components, and the outer surfaces of at least two of the cleaning components clamp the cup wall. At least one of the cleaning components is rotatably mounted on the mounting base, and the at least two cleaning components have a speed difference, so that the at least two cleaning components respectively form sliding friction with the inner and outer wall surfaces of the cup.

[0006] Furthermore, there are three cleaning components, two of which abut against the outer wall of the cup, and at least one of the cleaning components has a different rotational speed than the other cleaning components.

[0007] Furthermore, all three cleaning components are rotatably mounted on the mounting base, namely the first cleaning component, the second cleaning component, and the third cleaning component. The cup is sleeved on the first cleaning component, and the second and third cleaning components rotate at the same speed.

[0008] Furthermore, a drive assembly is provided, which drives one of the cleaning components to rotate and transmits the rotation of the other cleaning components through a gear set, so that the second cleaning component and the third cleaning component rotate.

[0009] Furthermore, the gear set includes a first gear coaxially disposed on the output shaft of the drive assembly and a second gear coaxially disposed on the other cleaning components, wherein the first gear meshes with the second gear.

[0010] Furthermore, it also includes multiple power components, each with a different output speed, and each power component is connected to a cleaning component in a one-to-one correspondence, so that the cleaning components have different speeds.

[0011] Furthermore, the three cleaning components are arranged in a triangular pattern.

[0012] Furthermore, the cleaning components are a first cleaning component and a fourth cleaning component. The cup is fitted onto the first cleaning component, and the first cleaning component is rotatably mounted on the mounting base. The mounting base is provided with a slot, and the fourth cleaning component is inserted into the slot.

[0013] Furthermore, the fourth cleaning component includes a clamp and a cleaning block, the clamp holding the cleaning block and the clamp being inserted into the slot.

[0014] On the other hand, a cup cleaning device is also provided, including: a differential cleaning structure as described above.

[0015] The beneficial effects of this application are as follows: By forming a dynamic differential friction interface through at least two cleaning components, the design of the speed difference between the two cleaning components can be optimized for the cleaning needs of the inner or outer wall of the cup. When the cup is clamped between the two cleaning components, by adjusting the speed difference between them, the inner wall of the cup slides and rubs relative to the corresponding cleaning component, and the outer wall of the cup slides and rubs relative to the corresponding cleaning component, thus cleaning both the inner and outer walls of the cup simultaneously. This avoids the problem of the cup rotating synchronously with the cleaning components and failing to clean the inner or outer wall. Attached Figure Description

[0016] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0017] Figure 1 The three-dimensional differential cleaning structure described in the embodiments of this application. Figure 1 ;

[0018] Figure 2 The three-dimensional differential cleaning structure described in the embodiments of this application. Figure 2 ;

[0019] Figure 3 This is a schematic diagram illustrating the cleaning of the cups described in the embodiments of this application;

[0020] Figure 4 This is an assembly diagram of the gear set described in an embodiment of this application;

[0021] Figure 5This is a perspective view of the mounting base described in the embodiments of this application;

[0022] Figure 6 This is a perspective view of the fourth cleaning component described in the embodiments of this application.

[0023] In the diagram: 1. Mounting base; 101. Slot; 2. Cleaning assembly; 201. First cleaning component; 202. Second cleaning component; 203. Third cleaning component; 204. Fourth cleaning component; 2041. Clamp; 2042. Cleaning block; 3. Drive assembly; 4. Gear set; 401. First gear; 402. Second gear; 5. Cup. Detailed Implementation

[0024] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] like Figures 1 to 6As shown, this embodiment provides a differential cleaning structure, including: a mounting base 1 and a cleaning assembly 2. The cleaning assembly 2 includes at least two cleaning components spaced apart. A cup 5 to be cleaned is fitted onto one of the cleaning components, and the outer surfaces of at least two of the cleaning components clamp the cup wall of the cup 5. At least one of the cleaning components is rotatably mounted on the mounting base 1, and the two cleaning components have a speed difference, so that at least two of the cleaning components respectively form sliding friction with the inner and outer wall surfaces of the cup 5.

[0028] Based on the above scheme, to further enhance the synergistic effect of the two cleaning components for efficient cleaning, both cleaning components are rotatably mounted on the mounting base 1. The cup 5 to be cleaned is clamped between the two relatively independent cleaning components, and its outer surface adaptively conforms to the inner and outer contours of the cup. The cleaning components adopt a differential drive design, and the speed difference can be dynamically adjusted by the control system. When performing the cleaning operation, the cleaning component with the cup 5 on it drives the cup 5 to rotate. Due to the speed difference between the other cleaning component and the first cleaning component, the inner and outer walls of the cup 5 are simultaneously subjected to circumferential sliding friction, preventing the inner and outer walls of the cup from rotating synchronously with the cleaning component, thus ensuring efficient removal of contaminants while protecting the surface of the cup.

[0029] This solution significantly improves cleaning efficiency and equipment applicability through a differential speed coordination mechanism. The dynamic control capability of differential drive allows for precise switching between inner and outer wall cleaning modes: for tea stains in deep crevices on the inner wall, the high speed on the inner side enhances the centrifugal penetration force of the inner cleaning components, thoroughly removing dead corners; for stains or label residue on the outer wall, the high speed on the outer side allows the outer cleaning components to quickly remove contaminants, avoiding cleaning blind spots common in traditional equipment. The contact area between the cleaning components and the cup 5 can be made of elastic absorbent material, such as sponge, which can adapt to deformation and accommodate different cup sizes. At the same time, the centripetal force balance design ensures the stability of the cup 5 under high-speed operation, eliminating the risk of vibration and detachment.

[0030] In addition, some embodiments can also use an intelligent control system to combine pressure and material sensing to automatically match differential parameters, which can prevent the thin-walled cup from breaking and optimize energy consumption distribution. High speed ratio is used in the rapid decontamination stage and low power consumption mode is switched in the polishing stage to improve overall energy efficiency.

[0031] It should be noted that the cup 5 is clamped between two cleaning components. Specifically, the cup 5 and the cleaning components are interference fit to ensure that the relative friction on the inner side is sufficient to drive the cup 5 to rotate, while ensuring that the friction on the outer side is sufficient to clean the outer wall of the cup 5.

[0032] Specifically, the two cleaning components are a first cleaning component 201 and a second cleaning component 202. The cup 5 is fitted onto the first cleaning component 201, and the rotational speed ratio i of the first cleaning component 201 and the second cleaning component 202 is less than or greater than 1. When the cup 5 is fitted onto the first cleaning component 201, the first cleaning component 201 and the second cleaning component 202 form a dynamic differential friction interface through the differential setting of the rotational speed ratio i. The rotational speed ratio i is defined as the ratio of the rotational speed of the first cleaning component 201 to that of the second cleaning component 202 (i = n1 / n2). When i < 1, the rotational speed of the second cleaning component 202 is higher than that of the first cleaning component 201. At this time, the second cleaning component 202 acts as an active friction component, and its high-speed rotation applies a strong shearing force to the outer wall of the cup 5. Meanwhile, the first cleaning component 201 acts as a low-speed support platform, restricting the cup and the second cleaning component 202 from rotating synchronously. The relative friction between the cup 5 and the second cleaning component 202 is enhanced through differential motion. At the same time, the first cleaning component 201 and the cup 5 also have relative sliding friction, thereby achieving synchronous cleaning of the inner and outer walls of the cup 5. When i > 1, the rotational speed of the first cleaning component 201 is higher than that of the second cleaning component 202. At this time, the cup 5 rotates at high speed with the first cleaning component 201, and the second cleaning component 202 acts as a low-speed friction component, using the reverse friction force generated by the speed difference to focus on cleaning the inner wall of the cup 5. By switching the speed ratio i (i<1 or i>1), the main cleaning surface of the inner and outer walls can be switched in a specific direction. At the same time, the alternating stress field generated by the differential rotation causes the contaminants on the inner and outer walls of the cup 5 to be peeled off under bidirectional friction. The adaptive deformation of the elastic cleaning component surface further matches the curvature of the cup wall, ensuring that the contact pressure is evenly distributed under different speed ratios.

[0033] In summary, the reversible switching of the speed ratio i (i < 1 or i > 1) gives the device the ability to flexibly switch between internal and external wall cleaning modes. When i < 1, the second cleaning component 202 dominates the external wall cleaning. Its high speed combined with differential motion can quickly remove residual adhesive or oil stains from labels on the external wall, which is especially suitable for cleaning large areas of the external wall of wide-mouthed cups. When i > 1, the first cleaning component 201 drives the cup 5 to rotate at high speed, causing the second cleaning component 202 to move at a relatively low speed to form directional friction on the internal wall. This achieves spiral centrifugal rinsing for tea stains on the internal wall of narrow-mouthed cups, improving cleaning efficiency by more than 50% compared to the single-speed mode. The bidirectional adjustability of the speed ratio also optimizes energy consumption distribution: a low i value is used when cleaning the external wall to reduce the power consumption of the first cleaning component 201, while a high i value is switched when cleaning the internal wall to enhance the rotational inertia of the cup 5 and reduce the load on the second cleaning component 202. In addition, the dynamic switching mechanism of the speed ratio is intelligently triggered by the pressure sensor. When the inner wall of the cup 5 is detected to be dirty, it automatically switches to the high i value mode, avoiding manual intervention and realizing full-process adaptive cleaning, which significantly broadens the application scenarios of the equipment.

[0034] In some embodiments, three cleaning components are provided, arranged in a triangular pattern. Specifically, the triangle can be an equilateral or isosceles triangle. The rotational speed of the cleaning component on which the cup 5 is mounted differs from that of the other cleaning components. The three cleaning components are a first cleaning component 201, a second cleaning component 202, and a third cleaning component 203. The cup 5 is mounted on the first cleaning component 201. The second cleaning component 202 and the third cleaning component 203 rotate at the same speed, and the speed ratio i between the first cleaning component 201 and the second cleaning component 202 is less than or greater than 1. In this embodiment, the cup 5 is mounted on the first cleaning component 201, and the second and third cleaning components 202 are symmetrically distributed at the vertices of the equilateral or isosceles triangle and rotate at the same speed, forming a stable clamping force field and saving space, thus reducing the overall size of the device. When the rotational speed ratio i (i = n1 / n2) between the first cleaning component 201 and the second cleaning component 202 is adjusted to i < 1, the rotational speed of the first cleaning component 201 is lower than that of the second cleaning component 202 and the third cleaning component 203. At this time, the second and third cleaning components 203 act as high-speed active friction components, applying symmetrical shearing force to the outer wall of the cup 5 at the same high rotational speed, while the first cleaning component 201 acts as a low-speed support platform, enhancing the relative friction between the cup 5 and the second and third cleaning components 202 and the third cleaning component 203 through differential motion, focusing on removing contaminants from the outer wall. When i > 1, the rotational speed of the first cleaning component 201 is higher than that of the second and third cleaning components 202 and the third cleaning component 203, driving the cup 5 to rotate at high speed. The second and third cleaning components 202 and the third cleaning component 203 act as low-speed friction components, using the reverse friction force generated by the rotational speed difference to concentrate on cleaning the inner wall of the cup 5. The three-point symmetrical layout, combined with the synchronized rotation speeds of the second cleaning component 202 and the third cleaning component 203, ensures a uniform distribution of clamping force. The dynamic adjustment of the rotation speed ratio i allows the cup 5 to switch between self-rotation and forced rotation.

[0035] This solution achieves efficient and stable directional cleaning through three-point symmetrical differential speed coordination and synchronous speed control. When i < 1, the second cleaning component 202 and the third cleaning component 203 rotate at high speed in the same direction to form a symmetrical shear force field, which is especially suitable for efficient cleaning of large areas of the outer wall of wide-mouthed cups. The three-point synchronous friction makes the cleaning uniformity of the outer wall higher. When i > 1, the high-speed rotation of the cup 5 drives the inner wall to generate differential friction with the second cleaning component 202 and the third cleaning component 203, achieving spiral centrifugal rinsing for tea stains on the inner wall of narrow-mouthed cups, and the cleaning efficiency is significantly improved compared with the dual cleaning component solution. The symmetrical design of the second cleaning component 202 and the third cleaning component 203 with the same speed eliminates unbalanced torque, so that irregularly shaped cups (such as multi-faceted cups) still maintain zero offset rotation at high speed, and the clamping stability is stronger. The intelligent switching of the speed ratio i, combined with the three-point elastic clamping, automatically adapts to the change of the center of gravity of the cup 5 (such as cups with handles), preventing uneven contact pressure caused by tilting.

[0036] Optionally, a drive assembly 3 is also provided, which drives one of the cleaning components and transmits the rotation of the other cleaning components through a gear set 4. The gear set 4 includes a first gear 401 coaxially mounted on the output shaft of the drive assembly 3 and a second gear 402 coaxially mounted on the other cleaning components. The first gear 401 meshes with the second gear 402, and the transmission ratio η between the first gear 401 and the second gear 402 is less than or greater than 1. The output shaft of the drive assembly 3 is coaxially connected to the first cleaning component 201 and transmits the rotation through the meshing of the first gear 401 with the second gear 402 on the second cleaning component 202 and the second gear 402 on the third cleaning component 203. The transmission ratio η (Z1 / Z2) between the first gear 401 and the second gear 402 determines the value of the speed ratio i (i = n1 / n2).

[0037] When Z1 < Z2, η < 1, otherwise i > 1. The rotation speed of the first cleaning component 201 is higher than that of the second cleaning component 202, driving the cup 5 to rotate at high speed. The second cleaning component 202 and the third cleaning component 203 rub against the outer wall at low speed.

[0038] When Z1 > Z2, η > 1, and conversely, i < 1. The rotational speed of the second cleaning component 202 is higher than that of the first cleaning component 201. At this time, the second cleaning component 202 and the third cleaning component 203 act as high-speed active friction components, applying high-speed shearing force to the outer wall of the cup 5. The first cleaning component 201 acts as a low-speed support platform, driving the cup 5 to rotate in the opposite direction, thereby increasing the relative speed difference between the inner and outer walls.

[0039] The rigid meshing of gear set 4 ensures a constant speed ratio. The surface of the elastic cleaning component expands adaptively under differential centrifugal force, conforming to the cup wall to form a spiral friction trajectory. At the same time, the three-point symmetrical layout maintains the balance of clamping force through the synchronicity of gear transmission, preventing the cup 5 from shifting.

[0040] The mechanical gear set 4 fixed speed ratio solution achieves precise differential coordination of multiple cleaning components through a single drive source, simplifying the structure and ensuring stable operation. Gear meshing transmission replaces independent multi-motor drives, reducing hardware costs and energy consumption. Simultaneously, the mechanical speed ratio eliminates electronic speed control delays, resulting in higher speed control precision. The fixed gear ratio design adapts to standardized production lines, ensuring uniformity in batch cleaning and achieving higher cleaning efficiency than electronic differential solutions. Furthermore, the modular gear set 4 supports quick replacement of gear pairs with different gear ratios (e.g., switching from Z1=25, Z2=55 to Z1=55, Z2=25), enabling flexible speed ratio switching to meet both high-speed external wall cleaning and fine internal wall polishing needs.

[0041] As an optional specific implementation, it also includes power components connected one-to-one with each of the cleaning components. These power components drive the cleaning components to rotate, and the output speeds of the power components differ, resulting in different rotational speeds among the cleaning components. In this implementation, each cleaning component is independently connected to a dedicated power component (such as a servo motor), and the power component controller precisely regulates the rotational speed and direction of each cleaning component. For example, three cleaning components are driven by power components A, B, and C respectively. Adjacent cleaning components are configured with differentiated rotational speeds through a controller, forming a local differential friction interface. When the cup 5 is clamped between the cleaning components, the rotational speed difference between adjacent cleaning components forces the cup 5 to rotate. For example, the speed difference between power components A and B creates a high shear force on the left side of the outer wall of the cup 5, while the speed difference between power components B and C generates a dynamic friction trajectory on the right side. Independent control of each power component supports real-time adjustment of differential mode: when it is detected that the inner wall of cup 5 needs to be cleaned more thoroughly, the controller increases the speed of the inner cleaning component and decreases the speed of the outer cleaning component. The cup 5 is driven to rotate by the speed gradient difference, so that the inner wall and the high-speed cleaning component generate reverse friction. At the same time, the surface of the elastic cleaning component expands adaptively to match the curvature of the cup wall, ensuring uniform pressure distribution under dynamic differential speed.

[0042] As another optional specific implementation, a cleaning component with a cup 5 is rotatably installed on the mounting base 1, and another cleaning component is fixedly installed on the mounting base 1. The cleaning component located inside the cup 5 drives the cup to rotate through friction, while the cleaning component on the outside restricts the rotation of the cup 5, thereby creating a speed difference between the two cleaning components and the cup 5, thus achieving cleaning of the inside and outside of the cup 5.

[0043] Specifically, the cleaning components are a first cleaning component 201 and a fourth cleaning component 204. The cup 5 is fitted onto the first cleaning component 201, and the first cleaning component 201 is rotatably mounted on the mounting base 1. The mounting base 1 is provided with a slot 101, and the fourth cleaning component 204 is inserted into the slot 101. When the first cleaning component 201 is driven to rotate, the friction between its surface and the inner wall of the cup 5 causes the cup 5 to rotate synchronously. However, the fourth cleaning component 204, due to its fixed installation, forms static friction resistance on the outer wall of the cup 5, causing the actual rotational speed of the cup 5 to be lower than that of the first cleaning component 201, thus creating a dynamic speed difference. The differential friction effect occurs simultaneously on both the inner and outer sides of the cup 5: the speed difference between the first cleaning component 201 and the inner wall of the cup 5 generates a centrifugal scouring force, deeply cleaning the tea stains on the inner wall; the static friction interface between the outer wall of the cup 5 and the fixed fourth cleaning component 204 peels off the stains on the outer wall through relative sliding friction. The slot-type fixing structure allows for quick replacement of the fourth cleaning component 204, adapting to the cleaning needs of cups made of different materials (such as replacing the sponge pad), and avoiding scratches on the cup body caused by rigid friction. In addition, the design without additional transmission parts reduces the risk of mechanical failure, and the modular assembly of the slot 101 and the fourth cleaning component 204 shortens maintenance time, making it especially suitable for high-frequency, small-batch, and rapid cleaning needs in home settings.

[0044] More specifically, the fourth cleaning component 204 includes a clamp 2041 and a cleaning block 2042. The clamp 2041 holds the cleaning block 2042 and is inserted into the slot 101. The clamp 2041 is fixed in the slot 101 of the mounting base 1 by a rigid insertion structure, and the cleaning block 2042 contacts the outer wall of the cup 5 through the adjustable clamping mechanism of the clamp 2041. When the first cleaning component 201 rotates to drive the cup 5 to rotate, the outer wall of the cup 5 and the cleaning block 2042 of the fourth cleaning component 204 generate relative movement due to frictional contact: the rigid slot 101 structure of the clamp 2041 ensures that the cleaning block 2042 maintains a constant preload in the radial direction, while the elastic deformation of the cleaning block 2042 adaptively conforms to the curvature of the outer wall of the cup 5, forming a stable static-dynamic friction interface. For example, when the outer wall of the cup 5 is a relief surface, the cleaning block 2042 is embedded into the recessed area through local deformation, and removes the stains in the texture under differential friction. At the same time, the clamping force of the clamp 2041 can be adjusted according to the size of the cup 5 to ensure that the contact pressure between the cleaning block 2042 and the cup wall is evenly distributed, and to avoid local overload that could damage the cup.

[0045] It is worth mentioning that the cleaning component 2 also includes a movable part, which is movably pressed onto the top of the cup 5, with the cleaning material on the side of the movable part opposite to the cup 5. The movable part is fixedly pressed onto the top of the cup 5 by an elastic support mechanism (such as a pneumatic rod or spring assembly), and the static cleaning material (such as a sponge pad or silicone scraper) embedded at its bottom remains in contact with the top opening of the cup 5. When the cup 5 is driven to rotate by the cleaning component below, the movable part remains stationary. The rotation of the cup 5 causes relative friction between the edge of the cup rim and the cleaning material of the movable part, using the tangential force of the rotation of the cup 5 to clean the inner and outer edges of the cup rim and the top surface. The elastic support mechanism adaptively adjusts the downward pressure (e.g., 5-20N) according to the height of the cup 5 to ensure that the static cleaning material is in close contact with the curved surface of the cup rim. The cooperation between the static movable part and the rotating cup 5 forms a unidirectional friction interface. The rotation of the cup 5 causes the cup rim to continuously rub against the cleaning material, while the cleaning component below cleans the inner and outer walls, achieving full surface coverage of the cup 5.

[0046] Specifically, the outer surface of the cleaning component is a cleaning material, which is one or a combination of several of the following: cloth, brush, sponge, or cleaning adhesive. When the cleaning component is driven at differential speed, the cloth adheres to the cup wall due to its fiber flexibility and uses rotational friction to adsorb dust; the brush generates high-frequency scraping under differential speed through rigid bristles, penetrating deep into the cup's texture to remove stubborn stains; the sponge deforms under pressure based on its porous elastic structure, tightly wrapping the curved surface of the cup wall, while its water absorption properties enhance the retention effect of the cleaning agent; the cleaning adhesive adheres to particulate contaminants through its viscoelastic properties and generates peeling shear force during differential rotation. Different materials are adapted to dynamically adjusted speed ratios: for example, the brush enhances scraping intensity at high speed ratios, while the sponge protects the fragile cup body through gentle deformation at low speed ratios, achieving a precise match between material properties and differential friction.

[0047] It is particularly important to note that in the above scheme, the rotation direction of the cleaning component with cup 5 is opposite to that of other cleaning components. However, in this scheme, the rotation direction of all cleaning components can be set to be the same. In this scheme, all cleaning components adopt a unidirectional rotation design, but a reverse friction effect between the inner and outer walls is formed through differential speed ratio control. Taking cup 5 with the inner cleaning component as an example: both the inner and outer cleaning components rotate clockwise, but the speed of the inner cleaning component is higher than that of the outer cleaning component, and the speed ratio i > 1. Since the inner and outer cleaning components rotate in the same direction but at different speeds, cup 5 is driven by the high speed of the inner cleaning component and tends to follow the direction of the inner cleaning component, while the low speed of the outer cleaning component causes it to form a reverse relative motion with respect to the outer wall of cup 5 (equivalent to the cup generating counterclockwise friction with the outer cleaning component). At this time, the direction of the friction force between the inner wall cleaning component and the inner wall of cup 5 is the same as the direction of cup 5's rotation, generating centrifugal scouring force; the direction of the friction force between the outer wall cleaning component and the outer wall of cup 5 is opposite to the direction of cup 5's rotation, forming a reverse shearing and peeling force. The friction directions of the inner and outer walls are opposite but coordinated by differential speed, and the friction intensity is adjusted by the speed difference to accelerate the removal of pollutants.

[0048] Meanwhile, in order to achieve the purpose of rotating in the same direction, an idler wheel is added between the first gear 401 and the second gear 402 on the basis of using the gear set 4 mentioned above, so that the rotation directions of the first gear 401 and the second gear 402 are the same.

[0049] On the other hand, a cup cleaning device is also provided, including: a differential cleaning structure as described above.

[0050] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0051] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0053] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A differential cleaning structure, characterized in that, include: The mounting base (1) and the cleaning assembly (2) include at least two spaced cleaning components. The cup (5) to be cleaned is fitted onto one of the cleaning components, and at least two of the cleaning components clamp the cup wall of the cup (5). At least one of the cleaning components is rotatably mounted on the mounting base (1), and at least two of the cleaning components have a speed difference so that at least two of the cleaning components slide and rub against the inner and outer walls of the cup (5) respectively.

2. The differential cleaning structure according to claim 1, characterized in that, The cleaning components are provided in three parts, two of which abut against the outer wall of the cup (5), and the rotation speed of at least one of the cleaning components is different from the rotation speed of the other cleaning components.

3. The differential cleaning structure according to claim 2, characterized in that, The three cleaning components are rotatably mounted on the mounting base (1), namely the first cleaning component (201), the second cleaning component (202) and the third cleaning component (203). The cup (5) is sleeved on the first cleaning component (201), and the second cleaning component (202) and the third cleaning component (203) rotate at the same speed.

4. The differential cleaning structure according to claim 3, characterized in that, A drive assembly (3) is also provided, which drives one of the cleaning components to rotate and transmits the rotation of the other cleaning components through a gear set (4) so ​​as to rotate the second cleaning component and the third cleaning component.

5. The differential cleaning structure according to claim 4, characterized in that, The gear set (4) includes a first gear (401) coaxially disposed on the output shaft of the drive assembly (3) and a second gear (402) coaxially disposed on the other cleaning components, wherein the first gear (401) meshes with the second gear (402).

6. The differential cleaning structure according to claim 3, characterized in that, It also includes multiple power components, each with a different output speed, and each power component is connected to a cleaning component in a one-to-one correspondence, so that the cleaning components have different speeds.

7. The differential cleaning structure according to claim 2, characterized in that, The three cleaning components are arranged in a triangular pattern.

8. The differential cleaning structure according to any one of claims 1-7, characterized in that, The cleaning components are a first cleaning component (201) and a fourth cleaning component (204). The cup (5) is sleeved on the first cleaning component (201), and the first cleaning component (201) is rotatably disposed on the mounting base (1). The mounting base (1) is provided with a slot (101), and the fourth cleaning component (204) is inserted into the slot (101).

9. The differential cleaning structure according to claim 8, characterized in that, The fourth cleaning component (204) includes a clamp (2041) and a cleaning block (2042), wherein the clamp (2041) holds the cleaning block (2042) and the clamp (2041) is inserted into the slot (101).

10. A cup cleaning device, characterized in that, include: The differential cleaning structure as described in any one of claims 1-9.

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