Cleaning organizations and cleaning equipment

Abstract

The present application relates to a cleaning mechanism and cleaning equipment. The cleaning mechanism includes a mounting seat; a first cleaning roller and a second cleaning roller, both of which are rotatably mounted on the mounting seat around their own axes and spaced apart from each other along the cleaning direction; a scraping structure, disposed on the mounting seat; an elastic structure, disposed vertically between the mounting seat and the scraping structure, for providing an elastic force to keep the scraping structure in contact with the first cleaning roller and the second cleaning roller; one of the scraping structure and the mounting seat is provided with a guide groove, and the other is provided with a guide protrusion, one end of the elastic structure is positioned in the guide groove, and the other end of the elastic structure is sleeved on the guide protrusion. In this way, not only is water stains on the surface to be cleaned reduced and the cleaning effect improved, but also, during the vertical movement of the scraping structure, the guide groove and the guide protrusion activate a guiding function, so that the scraping structure can be tilted without being affected by its own gravity, and the movement is smoother, thereby improving the reliability of scraping.

Description

Technical Field

[0001] The present application relates to the field of cleaning technology, and in particular to a cleaning mechanism and cleaning equipment. Background Art

[0002] With the development of social economy and the improvement of family living standards, household cleaning equipment has gradually entered the era of intelligence and mechanization. The cleaning robots that have emerged can liberate people from household cleaning work, effectively reduce people’s workload in household cleaning, and alleviate people’s fatigue during the process of household cleaning.

[0003] Some robots in the related art have essentially achieved sweeping and vacuuming functions. To further enhance automatic mopping capabilities, cleaning solutions that use roller mops and scrapers for self-cleaning have emerged. However, after long-term use, roller mops can cause water stains on the floor being cleaned, resulting in poor cleaning performance. Summary of the Invention

[0004] Based on this, it is necessary to provide a cleaning mechanism and cleaning equipment to address the problem that after long-term use, the roller mop will increase water stains on the ground to be cleaned and the cleaning effect will deteriorate.

[0005] In one aspect, the present application provides a cleaning mechanism, comprising:

[0006] Mounting seat;

[0007] The first cleaning roller and the second cleaning roller are both rotatably mounted on the mounting seat around their own axes and are spaced apart from each other along the cleaning direction;

[0008] A dirt scraping structure is provided on the mounting seat;

[0009] and an elastic structure, which is vertically arranged between the mounting seat and the scraping structure and is used to provide elastic force to keep the scraping structure in contact with the first cleaning roller and the second cleaning roller;

[0010] One of the scraping structure and the mounting seat is provided with a guide groove, and the other is provided with a guide protrusion. One end of the elastic structure is positioned in the guide groove, and the other end of the elastic structure is sleeved on the guide protrusion.

[0011] In one embodiment, the dirt scraping structure is constructed as a whole.

[0012] In one embodiment, the scraping structure has a first central axis parallel to the first direction; wherein the first direction is parallel to the axis direction of the first cleaning roller or the second cleaning roller;

[0013] The elastic structure is arranged on the first central axis;

[0014] Alternatively, the elastic structures are symmetrically distributed relative to the first central axis.

[0015] In one embodiment, the scraping structure includes a first scraping member and a second scraping member, and the elastic structure includes a first elastic member and a second elastic member. The first elastic member is arranged between the mounting seat and the first scraping member in a vertical direction, and is used to provide an elastic force to keep the first scraping member in contact with the first cleaning roller. The second elastic member is arranged between the mounting seat and the second scraping member in a vertical direction, and is used to provide an elastic force to keep the second scraping member in contact with the second cleaning roller.

[0016] In one embodiment, the first scraping member has a second central axis parallel to the first direction, and the first elastic member is arranged on the second central axis;

[0017] And / or the second scraping member has a third central axis parallel to the first direction, and the second elastic member is arranged on the third central axis.

[0018] In one embodiment, the guide protrusion protrudes into the guide groove.

[0019] In one embodiment, the elastic force exerted by the elastic structure on the scraping structure ranges from 5 Newtons to 25 Newtons.

[0020] In one embodiment, along the cleaning direction, the first cleaning roller is located in front of the second cleaning roller; the scraping structure has a first scraping contact portion and a second scraping contact portion, the first scraping contact portion and the first cleaning roller have an interference fit, and the second scraping contact portion and the second cleaning roller have an interference fit;

[0021] The interference between the first scraping contact portion and the first cleaning roller is X1, and the interference between the second scraping contact portion and the second cleaning roller is X2, wherein X1<X2.

[0022] In one embodiment, 0.2 mm ≤ X2 - X1 ≤ 1 mm.

[0023] In one embodiment, the axis of the first cleaning roller and the axis of the second cleaning roller are symmetrically arranged relative to the center plane, the scraping structure has a first scraping arm extending from the center plane toward the first cleaning roller, the first scraping arm has a first scraping contact portion, and the scraping structure has a second scraping arm extending from the center plane toward the second cleaning roller, the second scraping arm has a second scraping contact portion; wherein the length of the first scraping arm is less than the length of the second scraping arm.

[0024] In one embodiment, the first cleaning roller is located in front of the second cleaning roller along the cleaning direction; the cleaning mechanism further includes a waterway plate, which is disposed on the mounting seat and is used to guide water to the first cleaning roller and the second cleaning roller;

[0025] The average amount of water provided by the waterway plate to the first cleaning roller per unit time is greater than the average amount of water provided by the waterway plate to the second cleaning roller per unit time.

[0026] In one embodiment, the ratio of the average amount of water provided by the waterway plate to the first cleaning roller per unit time to the average amount of water provided by the waterway plate to the second cleaning roller per unit time is in the range of 1.5:1 to 3:1.

[0027] In one embodiment, along the cleaning direction, the first cleaning roller is located in front of the second cleaning roller; and the water absorption rate of the first cleaning roller is smaller than the water absorption rate of the second cleaning roller.

[0028] In one embodiment, the scraping structure has a first scraping contact surface, which contacts the first cleaning roller and is tangent to the outer surface of the first cleaning roller;

[0029] And / or the scraping structure has a second scraping contact surface, which is in contact with the second cleaning roller and tangent to the outer surface of the second cleaning roller.

[0030] In one embodiment, the width of the first scraping contact surface ranges from 1 mm to 5 mm;

[0031] And / or the width of the second scraping contact surface is in the range of 1 mm to 5 mm.

[0032] In one embodiment, the scraping structure further comprises a first transition slope, the first transition slope being adjacent to the first scraping contact surface and being located downstream of the first scraping contact surface along the forward rotation direction of the first cleaning roller, and the first transition slope being arranged at an angle to the first scraping contact surface;

[0033] And / or the scraping structure further has a third transition slope, which is adjacent to the second scraping contact surface and is located on the downstream side of the second scraping contact surface along the forward rotation direction of the second cleaning roller, and is set at an angle between the third transition slope and the second scraping contact surface.

[0034] In one embodiment, a first angle is formed between the first transition slope and the first scraping contact surface, and the first angle is in a range of 20 degrees to 60 degrees;

[0035] And / or a third included angle is formed between the third transition inclined surface and the second scraping contact surface, and the third included angle ranges from 20 degrees to 60 degrees.

[0036] In one embodiment, the cleaning mechanism further includes an anti-slip limiter, which is connected to the mounting seat, and the scraping structure is limited between the anti-slip limiter and the mounting seat.

[0037] In another aspect of the present application, a cleaning device is provided, comprising a cleaning body and the cleaning mechanism of any of the above embodiments, wherein the cleaning mechanism is mounted on the cleaning body.

[0038] The above-mentioned cleaning mechanism and cleaning equipment, when the first cleaning roller and the second cleaning roller are worn out due to long-term use, the elastic force of the elastic structure can be used to move the scraping structure in the vertical direction relative to the mounting seat, so that the scraping structure always maintains contact with the first cleaning roller and the second cleaning roller. The first cleaning roller and the second cleaning roller can always be scraped off sewage, excess water or other impurities by the scraping structure, thereby reducing the amount of sewage residual on the first cleaning roller and the second cleaning roller, thereby reducing water stains on the surface to be cleaned and improving the cleaning effect.

[0039] Moreover, since the scraping structure moves relative to the mounting seat in the vertical direction, and the vertical direction is parallel to the direction of gravity, the scraping structure will not be affected by its own gravity and will not fall over during the movement in the vertical direction. The scraping structure moves more smoothly, reducing the problem of movement jamming and further improving the scraping reliability of the scraping structure.

[0040] In addition, since the elastic structure is arranged between the scraping structure and the mounting seat in the vertical direction, the guide groove and the guide protrusion should cooperate in the vertical direction to guide the extension and compression movement of the elastic structure. Therefore, the setting of the guide groove and the guide protrusion can further prevent the scraping structure from being affected by its own gravity and tilting during the movement in the vertical direction. The scraping structure is smoother during the movement, reducing the problem of movement jamming, and further improving the scraping reliability of the scraping structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a schematic structural diagram of the cleaning mechanism in one or more embodiments of the present application.

[0042] Figure 2 for Figure 1 Schematic diagram of the exploded structure of part of the cleaning mechanism shown.

[0043] Figure 3 for Figure 1 A half-section view of a portion of the cleaning mechanism is shown.

[0044] Figure 4 for Figure 3 A half-sectional view showing another state of a partial structure of the cleaning mechanism is shown.

[0045] Figure 5 for Figure 1 A half-sectional view of a portion of the cleaning mechanism shown from another angle.

[0046] Figure 6 for Figure 1 A cross-sectional view of a portion of the cleaning mechanism shown at another angle.

[0047] Figure 7 It is a half-sectional view of a partial structure of a cleaning mechanism in one or more other embodiments of the present application.

[0048] Description of reference numerals:

[0049] Cleaning mechanism 100, mounting base 10, connecting portion 11, mating portion 12, guide protrusion 13, positioning protrusion 14, first cleaning roller 20, second cleaning roller 30, driving mechanism 35, scraping structure 40, first scraping member 41, second scraping member 42, guide groove 43, positioning recess 44, first positioning recess 441, second positioning recess 442, closed cavity 45, scraping body 46, extension portion 461, cover 47, first scraping contact portion 48, first scraping contact surface 481, second scraping contact portion 49, second scraping contact surface 491, first scraping arm 401, second scraping arm 402, first transition slope 403, second transition slope 404, third transition slope 405, fourth transition slope 406, elastic structure 50, elastic member 51, anti-slip limiter 60, waterway plate 70, cleaning direction X, first angle α1, third angle α2. DETAILED DESCRIPTION

[0050] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0051] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0052] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0053] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0054] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0055] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0056] As mentioned in the background, the robot in the related art uses a self-cleaning solution that combines a roller mop with a scraper. In practice, after the robot activates its cleaning function, it continuously moistens the roller mop with a clean water tank and uses the scraper to contact the roller mop, squeezing out dirty water from the roller mop, which is then collected in the dirty water chamber, thereby cleaning the floor or other surface to be cleaned.

[0057] However, after long-term use, the roller mop will wear out, resulting in the scraper and the roller mop no longer being in contact, causing the scraper to be unable to squeeze out the dirty water on the roller mop, and the amount of residual dirty water on the roller mop will increase, which will lead to more water stains on the surface to be cleaned and a poor cleaning effect.

[0058] In order to solve the problem that long-term use of roller mops causes increased water stains on the surface to be cleaned and the cleaning effect deteriorates, related technologies have adopted wear-resistant roller mops or asked users to replace scrapers regularly, but both require manual intervention and cannot achieve automatic adjustment of the robot.

[0059] Therefore, the present application designs a cleaning mechanism and cleaning equipment that can automatically adjust the scraper so that the scraper can maintain contact with the roller mop, thereby solving the problem of increased water stains on the surface to be cleaned and poor cleaning effect after long-term use of the roller mop.

[0060] See Figures 1 to 5 An embodiment of the present application provides a cleaning mechanism 100, comprising a mounting base 10, a first cleaning roller 20, a second cleaning roller 30, and a scraping structure 40. The cleaning mechanism 100 of the embodiment of the present application can be part of a cleaning device, detachably connected to a main unit of the cleaning device. For example, the cleaning mechanism 100 can serve as the cleaning head of a handheld floor scrubber or a handheld floor mop. In other embodiments, the cleaning mechanism 100 can also function as a separate entity to achieve an automatic cleaning function, such as a cleaning robot, further comprising a transmission mechanism, a controller, and other structures.

[0061] The first cleaning roller 20 and the second cleaning roller 30 are both rotatably mounted on the mounting base 10 around their own axes, and are spaced apart from each other along the cleaning direction X.

[0062] The mounting base 10 is a base structure capable of mounting components. The mounting base 10 can be block-shaped, flat, or a bracket structure. Specifically, in the embodiment of the present application, the mounting base 10 includes a connecting portion 11 and mating portions 12 connected to both sides of the connecting portion 11. Each mating portion 12 extends in an arc shape away from the connecting portion 11. The first cleaning roller 20 and the second cleaning roller 30 can be mounted on the inner sides of the two mating portions 12, respectively. In this way, a mating gap can be formed between the first cleaning roller 20 and the mating portion 12, and between the second cleaning roller 30 and the mating portion 12. The mating portion 12 not only protects the first cleaning roller 20 and the second cleaning roller 30, but also blocks water that is thrown outward by the first cleaning roller 20 and the second cleaning roller 30 during the cleaning process. In addition, if the cleaning mechanism 100 also has a dust collection function, the mating gap can also ensure that there is sufficient suction force between the first cleaning roller 20 and the second cleaning roller 30 and the mounting base 10 to absorb dust, sewage, etc.

[0063] The cleaning direction X is the moving direction of the cleaning mechanism 100 , and specifically refers to the forward cleaning direction of the cleaning mechanism 100 .

[0064] The first cleaning roller 20 and the second cleaning roller 30 can both rotate around their own axes under the driving action of the driving mechanism 35. In the embodiment of the present application, the arrangement of the first cleaning roller 20 and the second cleaning roller 30 is adopted, which can not only improve the cleaning efficiency and the cleaning speed, but also the functions of the first cleaning roller 20 and the second cleaning roller 30 are different. When the first cleaning roller 20 is located in front of the second cleaning roller 30 along the cleaning direction X, the function of the first cleaning roller 20 is to wet the surface to be cleaned by rotation, while the function of the second cleaning roller 30 is to wipe the wetted surface to be cleaned by rotation. In this way, the stain removal ability of the surface to be cleaned can be further improved.

[0065] The scraping structure 40 is provided on the mounting base 10 and can be in contact with the first cleaning roller 20 and the second cleaning roller 30. The scraping structure 40 refers to a component that can scrape off dirt on a component. In an embodiment of the present application, the scraping structure 40 can scrape off sewage, excess water or other impurities on the first cleaning roller 20 and the second cleaning roller 30. The dirt scraped off by the scraping structure 40 will be recovered by a recovery mechanism on the cleaning mechanism 100. The recovery mechanism may include a dirt receiving part, a dirt suction pipe, a dirt tank and a vacuum pump. The dirt tank generates negative pressure through the vacuum pump, and the dirt tank is connected to the dirt receiving part through the dirt suction pipe. In this way, the dirt in the dirt receiving part can be sucked into the dirt tank through the dirt suction pipe for collection by vacuum suction. The dirt in the dirt tank can wait for the user to clean and discharge it or it can be automatically cleaned and discharged at the base station.

[0066] It should be pointed out here that in order to achieve a better scraping effect, the scraping structure 40 usually has a certain interference fit with the first cleaning roller 20 and the second cleaning roller 30, so that the scraping structure 40 can abut against the surface of the first cleaning roller 20 and the second cleaning roller 30, and can smoothly scrape off the dirty water, excess water or other impurities on the first cleaning roller 20 and the second cleaning roller 30.

[0067] In the embodiment of the present application, the scraping structure 40 is movably mounted on the mounting base 10. That is, the scraping structure 40 is not fixed to the mounting base 10, but is movable relative to the first cleaning roller 20 and the second cleaning roller 30 on the mounting base 10. Therefore, the interference fit between the scraping structure 40 and the first cleaning roller 20 and the second cleaning roller 30 can be adjusted according to actual conditions. Therefore, when the first cleaning roller 20 and the second cleaning roller 30 become worn due to long-term use, the scraping structure 40 can be adjusted to maintain contact with the first cleaning roller 20 and the second cleaning roller 30, thereby reducing the amount of residual sewage on the first cleaning roller 20 and the second cleaning roller 30, thereby reducing water stains on the surface to be cleaned and improving the cleaning effect.

[0068] In order to enable the scraping structure 40 to automatically adjust the interference between itself and the first cleaning roller 20 and the second cleaning roller 30, in an embodiment of the present application, the cleaning mechanism 100 further includes an elastic structure 50. The elastic structure 50 is vertically disposed between the mounting base 10 and the scraping structure 40 to provide an elastic force F that maintains the scraping structure 40 in contact with the first cleaning roller 20 and the second cleaning roller 30. Specifically, the elastic structure 50 is vertically disposed between the mounting base 10 and the scraping structure 40. In this way, a vertical elastic force can be provided to the scraping structure 40.

[0069] The elastic structure 50 is capable of elastically deforming under external force and possesses an elastic restoring force that automatically restores this elastic deformation. When the elastic structure 50 is vertically positioned between the mounting base 10 and the scraping structure 40, the scraping structure 40 can vertically move relative to the mounting base 10 when the elastic structure 50 expands or contracts, thereby enabling movement of the scraping structure 40.

[0070] Therefore, when the first cleaning roller 20 and the second cleaning roller 30 are worn out after long-term use, the elastic force of the elastic structure 50 can be used to move the scraping structure 40 relative to the mounting base 10 in the vertical direction, so that the scraping structure 40 always maintains contact with the first cleaning roller 20 and the second cleaning roller 30. The first cleaning roller 20 and the second cleaning roller 30 can always be scraped off by the scraping structure 40 to remove sewage, excess water or other impurities, thereby reducing the amount of sewage residual on the first cleaning roller 20 and the second cleaning roller 30, thereby reducing water stains on the surface to be cleaned and improving the cleaning effect.

[0071] Moreover, since the scraping structure 40 moves relative to the mounting base 10 in the vertical direction, and the vertical direction is parallel to the direction of gravity, the scraping structure 40 can be free from being affected by its own gravity and tilted during the movement in the vertical direction. The scraping structure 40 moves more smoothly, reducing the problem of movement jamming and further improving the scraping reliability of the scraping structure 40.

[0072] Specifically in the embodiment of the present application, the dirt scraping structure 40 can be constructed as a whole.

[0073] When the scraping structure 40 is constructed as an integral unit, the elastic structure 50 can provide elastic force to the scraping structure 40 as a whole, thereby enabling the scraping structure 40 to simultaneously maintain contact with the first cleaning roller 20 and the second cleaning roller 30. In addition, the scraping structure 40 as an integral unit simplifies the overall structure of the cleaning mechanism 100, making the structure of the cleaning mechanism 100 more compact and more conducive to miniaturization of the cleaning mechanism 100.

[0074] Furthermore, the scraping structure 40 has a first central axis parallel to a first direction, wherein the first direction is parallel to an axis direction of the first cleaning roller 20 or the second cleaning roller 30 , and the elastic structure 50 is provided on the first central axis.

[0075] The first direction referred to here is Figure 3 The direction shown is perpendicular to the paper.

[0076] Since the scraping structure 40 needs to scrape the first cleaning roller 20 and the second cleaning roller 30 at the same time, when the elastic structure 50 is arranged on the first central axis of the scraping structure 40, the force on both sides of the first central axis of the scraping structure 40 can be uniform, thereby enabling the scraping structure 40 to maintain stable contact with the first cleaning roller 20 and the second cleaning roller 30 at the same time. In addition, by arranging the elastic structure 50 on the first central axis, the elastic force of the elastic structure 50 can be evenly applied to the two cleaning rollers, thereby simplifying the overall structural design of the cleaning mechanism 100 and making the cleaning mechanism 100 more compact and smaller.

[0077] In other embodiments, the elastic structures 50 may be symmetrically distributed relative to the first central axis. In this way, the scraping structure 40 is evenly stressed along both sides of the first central axis, thereby enabling the scraping structure 40 to maintain stable contact with both the first cleaning roller 20 and the second cleaning roller 30.

[0078] Preferably, the elastic structure 50 includes at least two elastic members 51 , for example, three, four or six elastic members 51 , and all the elastic structures 50 are spaced apart from each other along the first direction.

[0079] By arranging all the elastic members 51 to be spaced apart from each other along the first direction, the elastic force provided by the elastic members 51 to the scraping structure 40 can be uniform, the scraping structure 40 is subjected to balanced force, and the contact between the scraping structure 40 and the first cleaning roller 20 and the second cleaning roller 30 is comprehensive and stable, thereby improving the scraping effect.

[0080] See also Figure 7 Specifically in another embodiment of the present application, the scraping structure 40 includes a first scraping member 41 and a second scraping member 42, and the elastic structure 50 includes a first elastic member and a second elastic member. The first elastic member is arranged between the mounting seat 10 and the first scraping member 41 in the vertical direction, and is used to provide an elastic force to keep the first scraping member 41 in contact with the first cleaning roller 20. The second elastic member is arranged between the mounting seat 10 and the second scraping member 42 in the vertical direction, and is used to provide an elastic force to keep the second scraping member 42 in contact with the second cleaning roller 30.

[0081] Thus, compared to the embodiment in which the scraping structure 40 is integrated, this embodiment divides the scraping structure 40 into two independent parts, a first scraping member 41 and a second scraping member 42, each of which is elastically supported by a first elastic member and a second elastic member. Because the first cleaning roller 20 and the second cleaning roller 30 are located at different positions along the cleaning direction, and the vertical direction is perpendicular to the cleaning direction, there is no positional interference between the first scraping member 41 and the second cleaning roller 30, and there is no positional interference between the second scraping member 42 and the first cleaning roller 20. This allows the first scraping member 41 and the second scraping member 42 to reliably scrape the first cleaning roller 20 and the second cleaning roller 30, respectively. Furthermore, the independent arrangement of the first scraping member 41 and the second scraping member 42 can adapt to different scraping situations of the first cleaning roller 20 and the second cleaning roller 30, thereby improving the scraping effect of the first cleaning roller 20 and the second cleaning roller 30.

[0082] Similarly, since the first scraper 41 and the second scraper 42 can both move relative to the mounting base 10 in the vertical direction, and the vertical direction is parallel to the direction of gravity, the first scraper 41 and the second scraper 42 can be unaffected by their own gravity and tilted during the movement in the vertical direction. The first scraper 41 and the second scraper 42 move more smoothly, reducing the problem of movement jamming and further improving the scraping reliability of the first scraper 41 and the second scraper 42.

[0083] Furthermore, the first scraping member 41 has a second central axis parallel to the first direction, and the first elastic member is disposed on the second central axis. When the first elastic member is disposed on the second central axis of the first scraping member 41, the force applied to the first scraping member 41 along both sides of the second central axis is uniform, thereby maintaining stable contact between the first scraping member 41 and the first cleaning roller 20. In other embodiments, the first elastic members may be arranged symmetrically with respect to the second central axis. In this way, the force applied to the first scraping member 41 along both sides of the second central axis is uniform, thereby maintaining stable contact between the first scraping member 41 and the first cleaning roller 20.

[0084] Similarly, the second scraping member 42 has a third central axis parallel to the first direction, and the second elastic member is disposed on the third central axis. This ensures that the force applied to the second scraping member 42 along both sides of the third central axis is uniform, thereby maintaining stable contact between the second scraping member 42 and the second cleaning roller 30. In other embodiments, all second elastic members may be symmetrically distributed relative to the third central axis. This ensures that the force applied to the second scraping member 42 along both sides of the third central axis is uniform, thereby maintaining stable contact between the second scraping member 42 and the second cleaning roller 30.

[0085] In some embodiments, the number of the first elastic members may include at least two, for example, three, four, or six, and all of the first elastic members are spaced apart from each other along the first direction. Similarly, the number of the second elastic members may include at least two, for example, three, four, or six, and all of the second elastic members are spaced apart from each other along the first direction.

[0086] By arranging all first elastic members spaced apart from each other along the first direction, the elastic force applied by the first elastic members to the first scraping member 41 can be uniform, the force on the first scraping member 41 is balanced, and the contact between the first scraping member 41 and the first cleaning roller 20 is comprehensive and stable, thereby improving the scraping effect. By arranging all second elastic members spaced apart from each other along the first direction, the elastic force applied by the second elastic members to the second scraping member 42 can be uniform, the force on the second scraping member 42 is balanced, and the contact between the second scraping member 42 and the second cleaning roller 30 is comprehensive and stable, thereby improving the scraping effect.

[0087] In some embodiments, the elastic force exerted by the elastic structure 50 on the dirt-scraping structure 40 ranges from 5 Newtons to 25 Newtons.

[0088] The elastic force exerted by the elastic structure 50 on the scraping structure 40 ranges from 5 Newtons to 25 Newtons, which means that when the elastic structure 50 is compressed to the shortest length, the scraping structure 40 is at the top, and the elastic force exerted by the elastic structure 50 on the scraping structure 40 does not exceed 25 Newtons; when the elastic structure 50 is compressed to the longest length, the scraping structure 40 is at the bottom, and the elastic force exerted by the elastic structure 50 on the scraping structure 40 is not less than 5 Newtons.

[0089] Within this range, the scraping structure 40 can always maintain a certain interference fit with the first cleaning roller 20 and the second cleaning roller 30 during the initial use and later wear of the first cleaning roller 20 and the second cleaning roller 30, thereby improving the scraping effect and thus improving the cleaning effect.

[0090] It should be noted that when the elastic structure 50 includes multiple elastic members 51, the elastic force exerted by the elastic structure 50 on the scraping structure 40 in the range of 5 Newtons to 25 Newtons means that the elastic force exerted by all the elastic members 51 on the scraping structure 40 in the range of 5 Newtons to 25 Newtons. When the elastic structure 50 includes multiple first elastic members and multiple second elastic members, the elastic force exerted by the elastic structure 50 on the scraping structure 40 in the range of 5 Newtons to 25 Newtons means that the elastic force exerted by all the first elastic members on the first scraping member 41 in the range of 5 Newtons to 25 Newtons, and the elastic force exerted by all the second elastic members on the second scraping member 42 in the range of 5 Newtons to 25 Newtons.

[0091] In the embodiment of the present application, the elastic structure 50 is specifically a spring, that is, the elastic member 51, the first elastic member and the second elastic member are springs. In other embodiments, they can also be replaced by elastic structures such as rubber.

[0092] See also Figure 5 In order to further enable the elastic structure 50 to reliably provide elastic force for the scraping structure 40, in an embodiment of the present application, one of the scraping structure 40 and the mounting seat 10 is provided with a guide groove 43, and the other one is provided with a guide protrusion 13, one end of the elastic structure 50 is positioned in the guide groove 43, and the other end of the elastic structure 50 is sleeved on the guide protrusion 13.

[0093] In this way, the elastic structure 50 can be circumferentially restricted by the guide groove 43 and the guide protrusion 13 at the same time, so it is more stable during the compression and extension movement, so that the force applied to the scraping structure 40 is more uniform, thereby improving the scraping effect.

[0094] In addition, since the elastic structure 50 is arranged between the scraping structure 40 and the mounting seat 10 in the vertical direction, the guide groove 43 and the guide protrusion 13 should cooperate in the vertical direction to guide the extension and compression movement of the elastic structure 50. Therefore, the setting of the guide groove 43 and the guide protrusion 13 can further prevent the scraping structure 40 from being affected by its own gravity and tilting during the movement in the vertical direction. The scraping structure 40 is smoother during the movement, reducing the problem of movement jamming, and further improving the scraping reliability of the scraping structure 40.

[0095] Specifically, in the embodiment of the present application, the scraping structure 40 has a guide groove 43, and the mounting seat 10 has a guide protrusion 13. In other embodiments, the scraping structure 40 may have a guide protrusion 13, and the mounting seat 10 may have a guide groove 43.

[0096] Furthermore, the guide protrusion 13 protrudes into the guide groove 43 .

[0097] In this way, the cooperation between the guide protrusion 13 and the guide groove 43 can also realize the positioning of the scraping structure 40 relative to the mounting seat 10, so as to guide the movement of the scraping structure 40 relative to the mounting seat 10 and improve the stability of the movement.

[0098] It should be noted that when the scraping structure 40 is constructed as an integral unit and the elastic structure 50 includes an elastic member 51, one end of the elastic member 51 is positioned in the guide groove 43, and the other end of the elastic structure 50 is sleeved on the guide protrusion 13. However, when the scraping structure 40 is divided into two independent parts, namely the first scraping member 41 and the second scraping member 42, and the elastic structure 50 includes the first elastic member and the second elastic member, the guide groove 43 and the guide protrusion 13 should include two parts, one end of the first elastic member is positioned in one of the guide grooves 43, and the other end of the elastic structure 50 is sleeved on the corresponding one of the guide protrusions 13, and the second elastic member is positioned in the other guide groove 43, and the other end of the elastic structure 50 is sleeved on the corresponding one of the guide protrusions 13.

[0099] Combine Figure 3 and Figure 6In addition, since the scraping structure 40 can be movably arranged on the mounting base 10 in the vertical direction, and the first cleaning roller 20 and the second cleaning roller 30 are spaced apart from each other in the cleaning direction, the cleaning direction is parallel to the horizontal direction, and therefore the cleaning direction is perpendicular to the vertical direction, when the forces exerted by the first cleaning roller 20 and the second cleaning roller 30 on the scraping structure 40 cannot keep the scraping structure 40 balanced, the scraping structure 40 is very likely to shift in the cleaning direction or deviate from the angle relative to the horizontal plane, thereby affecting the contact relationship between the scraping structure 40 and the first cleaning roller 20 and the second cleaning roller 30. For example, when the scraping structure 40 shifts forward in the cleaning direction, the interference fit between the scraping structure 40 and the first cleaning roller 20 becomes larger, and the interference fit between the scraping structure 40 and the second cleaning roller 30 becomes smaller, or even no contact occurs. This will result in poor scraping effect of the scrapping structure 40, reduced cleaning effect, and the first cleaning roller 20, the second cleaning roller 30, and the scraping structure 40 may also be damaged, resulting in parts being scrapped.

[0100] Therefore, in the embodiment of the present application, one of the mounting seat 10 and the scraping structure 40 is provided with a positioning protrusion 14 along the vertical direction, and the other of the mounting seat 10 and the scraping structure 40 is provided with a positioning recess 44, and the positioning protrusion 14 cooperates with the positioning recess 44.

[0101] By providing a positioning protrusion 14 in the vertical direction to cooperate with the corresponding positioning recess 44, the mounting base 10 and the scraping structure 40 can be constrained, thereby limiting the displacement of the scraping structure 40 along the cleaning direction and the angular deviation relative to the horizontal plane, preventing the scraping structure 40 from affecting the interference fit between the first cleaning roller 20 and the second cleaning roller 30, improving the reliability of scraping, and thus improving the cleaning effect. In addition, since the scraping structure 40 is movable in the vertical direction relative to the mounting base 10, when the scraping structure 40 moves in the vertical direction relative to the mounting base 10, the positioning protrusion 14 protruding in the vertical direction cooperates with the positioning recess 44, thereby also playing a role in guiding the movement, reducing the phenomenon of the scraping structure 40 getting stuck during the vertical movement relative to the mounting base 10, and improving the reliability of the movement.

[0102] Furthermore, the positioning protrusions 14 include a plurality, preferably, the number of the positioning protrusions 14 can include three, four, five or six, etc., and the positioning recesses 44 include a plurality, all of the positioning protrusions 14 are spaced apart from each other along the first direction, and are arranged one-to-one with all of the positioning recesses 44. The first direction is parallel to the axial direction of the first cleaning roller 20 or the second cleaning roller 30.

[0103] By arranging all the positioning protrusions 14 spaced apart from each other along the first direction, the cooperation between the multiple positioning protrusions 14 and the multiple positioning recesses 44 can more evenly restrict the scraping structure 40, thereby expanding the restriction range of the scraping structure 40 and improving the reliability of the limitation.

[0104] Furthermore, all the positioning recesses 44 include at least one first positioning recess 441 and at least one second positioning recess 442, the size of the first positioning recess 441 along the first direction matches the size of the corresponding positioning protrusion 14 along the first direction, and there is a first adjustment gap between the second positioning recess 442 and the corresponding positioning protrusion 14 along the first direction.

[0105] Since the scraping structure 40 is longer in the first direction, the first adjustment gap is set to compensate for the manufacturing error of the scraping structure 40 or the mounting seat 10, so that all the positioning protrusions 14 and the corresponding positioning recesses 44 can cooperate with each other, thereby improving the assembly reliability between the scraping structure 40 and the mounting seat 10.

[0106] In the embodiment of the present application, two second positioning recesses 442 may be included, and the two second positioning recesses 442 may be located at both ends of all positioning recesses 44. In this way, the manufacturing error of the scraping structure 40 or the mounting seat 10 can be compensated by the cooperation between the second positioning recesses 442 and the corresponding positioning protrusions 14.

[0107] Specifically, the cross-section of the second positioning recess 442 is elliptical, and the positioning protrusion 14 corresponding to the second positioning recess 442 is cylindrical.

[0108] It should be noted here that the length direction of the ellipse is parallel to the first direction.

[0109] By providing the elliptical second positioning recess 442 in conjunction with the cylindrical positioning protrusion 14, a first adjustment gap can be formed between the second positioning recess 442 and the corresponding positioning protrusion 14 along the first direction. This structure is simple and reliable. In addition, a certain adjustment gap is provided on both sides of the positioning protrusion 14 along the first direction, thereby increasing the adjustment range.

[0110] In some embodiments, along the first direction, the length of the dirt scraping structure 40 is L, and the distance between two positioning protrusions 14 at both ends of all the positioning protrusions 14 is 1 / 2L to 4 / 5L.

[0111] In this way, the distance between the positioning protrusions 14 at both ends can be enlarged, and the positioning protrusions 14 at both ends can be made as close as possible to the two ends of the scraping structure 40 in the length direction. After all the positioning protrusions 14 are matched with the positioning recesses 44, the risk of deformation of the two ends of the scraping structure 40 when subjected to force can be reduced, thereby improving the scraping reliability of the scraping structure 40.

[0112] In some embodiments, when the dirt scraping structure 40 is taken as a whole, the dirt scraping structure 40 has a first central axis parallel to the first direction, and all the positioning protrusions 14 or all the positioning recesses 44 are disposed on the first central axis.

[0113] Thus, since the scraping structure 40 needs to scrape the first cleaning roller 20 and the second cleaning roller 30 at the same time, when all the positioning protrusions 14 or all the positioning recesses 44 are provided on the first central axis, the scraping structure 40 can be restricted on both sides of the first central axis, thereby enabling the scraping structure 40 to maintain stable contact with the first cleaning roller 20 and the second cleaning roller 30 at the same time. In addition, by providing all the positioning protrusions 14 or all the positioning recesses 44 on the first central axis, the overall structural design of the cleaning mechanism 100 can be simplified, making the cleaning mechanism 100 more compact and smaller in size.

[0114] In other embodiments, positioning protrusions 14 may be provided or all positioning recesses 44 may be symmetrically distributed relative to the first central axis. In this way, the scraping structure 40 can be constrained on both sides of the first central axis, thereby enabling the scraping structure 40 to maintain stable contact with both the first cleaning roller 20 and the second cleaning roller 30.

[0115] It should be noted that when the scraping structure 40 is divided into two independent parts, the first scraping member 41 and the second scraping member 42, the positioning protrusion 14 and the matching positioning recess 44 of the mounting seat 10 and the scraping structure 40 should include two sets, respectively provided on the mounting seat 10 and the first scraping member 41 and the mounting seat 10 and the second scraping member 42. Specifically, one of the mounting seat 10 and the first scraping member 41 is provided with a positioning protrusion 14 protruding in the vertical direction, and the other of the mounting seat 10 and the first scraping member 41 is provided with a positioning recess 44, and the positioning protrusion 14 cooperates with the positioning recess 44. Furthermore, one of the mounting seat 10 and the second scraping member 42 is provided with another positioning protrusion 14 protruding in the vertical direction, and the other of the mounting seat 10 and the second scraping member 42 is provided with another positioning recess 44, and the other positioning protrusion 14 cooperates with the other positioning recess 44.

[0116] In addition, the above-mentioned positioning protrusions 14 and positioning recesses 44 include a plurality of positioning protrusions 14 and 44 spaced apart from each other along the first direction, and the positioning recesses 44 include a first positioning recess 441 and a second positioning recess 442, which can also be applied to the positioning protrusions 14 and positioning recesses 44 in each group, and the details will not be repeated here.

[0117] Combine Figure 5 In some embodiments, when the cleaning mechanism 100 includes an elastic structure 50 , the elastic structure 50 is distributed on two opposite sides of at least one positioning protrusion 14 .

[0118] In this way, the elastic force of the elastic structure 50 on both sides of the positioning protrusion 14 can be balanced, thereby making the force on the entire scraping structure 40 more balanced, and the matching relationship between the positioning protrusion 14 and the positioning recess 44 better, further reducing the displacement of the scraping structure 40 along the cleaning direction and the angular deviation relative to the horizontal plane, thereby improving the scraping effect.

[0119] Specifically, when the elastic structure 50 includes multiple elastic members 51, at least two elastic members 51 are distributed on opposite sides of at least one positioning protrusion 14; when the elastic structure 50 includes multiple first elastic members and multiple second elastic members, at least two first elastic members are distributed on opposite sides of at least one positioning protrusion 14 corresponding to the first scraping member 41, and at least two second elastic members are distributed on opposite sides of at least one positioning protrusion 14 corresponding to the second scraping member 42.

[0120] Specifically, when the positioning protrusions 14 include a plurality of positioning protrusions 14 spaced apart along the first direction, portions of the elastic structure 50 are provided on two opposite sides of at least one positioning protrusion 14 along the first direction.

[0121] The portion of the elastic structure 50 referred to herein may be the elastic member 51, or the first elastic member or the second elastic member. Specifically, when the elastic structure 50 includes multiple elastic members 51 and the positioning protrusions 14 include multiple positioning protrusions spaced apart along the first direction, at least one positioning protrusion 14 is provided with an elastic member 51 on two opposite sides of the first direction. When the elastic structure 50 includes multiple first elastic members and multiple second elastic members, and the positioning protrusions 14 corresponding to the first scraping member 41 include multiple positioning protrusions spaced apart along the first direction, at least one positioning protrusion 14 corresponding to the second scraping member 42 is provided with a first elastic member on two opposite sides of the first direction. When the positioning protrusions 14 corresponding to the second scraping member 42 include multiple positioning protrusions spaced apart along the first direction, at least one positioning protrusion 14 corresponding to the second scraping member 42 is provided with a second elastic member on two opposite sides of the first direction.

[0122] The first direction is the length direction of the scraping structure 40. Therefore, there is enough space for the elastic structure 50 and the positioning protrusion 14 to be arranged together in the first direction, making the structure of the cleaning mechanism 100 more compact. In addition, the elastic structure 50 is also restricted by the cooperation between the positioning protrusion 14 and the positioning recess 44 in the first direction, and is not prone to twisting or displacement, thereby improving the reliability of the elastic force provided by the elastic structure 50 and thus improving the scraping effect.

[0123] More specifically, all the positioning protrusions 14 are provided with portions of the elastic structure 50 on opposite sides along the first direction, and two adjacent positioning protrusions 14 can share a portion of the elastic structure 50. In this way, the situation in which the complex structure of the elastic structure 50 causes the complex structure of the cleaning mechanism 100 can be avoided.

[0124] That is, when the elastic structure 50 includes multiple elastic members 51, all the positioning protrusions 14 are provided with elastic members 51 on opposite sides along the first direction, and one elastic member 51 can be shared between two adjacent positioning protrusions 14; when the elastic structure 50 includes multiple first elastic members and multiple second elastic members, all the positioning protrusions 14 corresponding to the first scraping member 41 are provided with first elastic members on opposite sides along the first direction, and one first elastic member can be shared between two adjacent positioning protrusions 14 corresponding to the first scraping member 41; all the positioning protrusions 14 corresponding to the second scraping member 42 are provided with second elastic members on opposite sides along the first direction, and one second elastic member can be shared between two adjacent positioning protrusions 14 corresponding to the second scraping member 42.

[0125] Of course, in other embodiments, the position of the elastic structure 50 may also coincide with the position of the positioning protrusion 14 . Specifically, the elastic structure 50 may be sleeved on the positioning protrusion 14 so that the positions of the two coincide.

[0126] By setting the position of the elastic structure 50 to coincide with the position of the positioning protrusion 14, the elastic force of the elastic structure 50 on the matching position of the positioning protrusion 14 and the positioning recess 44 can be balanced, thereby making the matching relationship between the positioning protrusion 14 and the positioning recess 44 better, further reducing the displacement of the scraping structure 40 along the cleaning direction and the angular deviation relative to the horizontal plane, and improving the scraping effect.

[0127] See Figure 3 In an embodiment of the present application, the cleaning mechanism 100 further includes an anti-slip limiter 60 , which is connected to the mounting seat 10 , and the scraping structure 40 is limited between the anti-slip limiter 60 and the mounting seat 10 .

[0128] Since the scraping structure 40 is movable relative to the mounting seat 10, limiting the scraping structure 40 between the anti-slip limiter 60 and the mounting seat 10 can limit the range of movement of the scraping structure 40 relative to the mounting seat 10, improve scraping reliability, and reduce the risk of damage to the scraping structure 40.

[0129] It should be pointed out here that when the scraping structure 40 is taken as a whole, the scraping structure 40 is limited between the anti-slip limiter 60 and the mounting seat 10. When the scraping structure 40 includes a first scraping member 41 and a second scraping member 42, the anti-slip limiter 60 may include two, the first scraping member 41 is limited between one of the anti-slip limiters 60 and the mounting seat 10, and the second scraping member 42 is limited between the other anti-slip limiter 60 and the mounting seat 10.

[0130] Specifically, the scraping structure 40 moves in a vertical direction relative to the mounting base 10 within a range of 0.5 mm to 5 mm.

[0131] Specifically, the positioning recess 44 passes through the scraping structure 40 or the mounting seat 10 in the vertical direction, one end of the positioning protrusion 14 passes through the positioning recess 44 , and the anti-slip limiter 60 is fixed to the end of the positioning protrusion 14 passing through the positioning recess 44 .

[0132] In this way, by fixing the anti-slip limiter 60 on the positioning protrusion 14, the structure of the positioning protrusion 14 is utilized, and the setting of the anti-slip limiter 60 is simplified. In addition, since the distribution position of the positioning protrusion 14 relative to the scraping structure 40 is also relatively central or evenly distributed, the limiting force of the anti-slip limiter 60 on the scraping structure 40 is also balanced, thereby improving the limiting reliability.

[0133] Preferably, the anti-drop limiter 60 is a screw, which cooperates with the screw hole at the end of the positioning protrusion 14 to achieve fixation.

[0134] Specifically, in the embodiment of the present application, when the scraping structure 40 is provided with a positioning recess 44, the positioning recess 44 vertically penetrates the scraping structure 40, and one end of the positioning protrusion 14 on the mounting base 10 penetrates the positioning recess 44. With respect to the mounting base 10, the side of the scraping structure 40 facing away from the mounting base 10 is generally the bottom surface of the cleaning mechanism 100. Therefore, fewer components are required and the structure is simpler. Therefore, the provision of the anti-slip stopper 60 is more convenient, and the overall structure is simplified.

[0135] In some embodiments, when the scraping structure 40 is provided with a positioning recess 44 , the scraping structure 40 further has a closed cavity 45 , and the anti-slip limiter 60 is provided in the closed cavity 45 .

[0136] Since the scraping structure 40 needs to scrape off the sewage and other impurities on the first cleaning roller 20 and the second cleaning roller 30, sewage or impurities will enter the gap between the anti-slip limiter 60 and the scraping structure 40, and then enter the gap between the positioning protrusion 14 and the positioning recess 44, which will affect the matching relationship between the positioning protrusion 14 and the positioning recess 44, causing the scraping structure 40 to get stuck when moving relative to the mounting seat 10. Therefore, the embodiment of the present application arranges the anti-slip limiter 60 in the closed cavity 45 of the scraping structure 40, which can reduce the sewage or impurities entering the gap between the anti-slip limiter 60 and the scraping structure 40, thereby reducing the risk of entering the gap between the positioning protrusion 14 and the positioning recess 44, and making the scraping structure 40 move more smoothly relative to the mounting seat 10.

[0137] Specifically, the scraping structure 40 includes a scraping body 46 and a cover 47 . The scraping body 46 is provided with a positioning recess 44 . The cover 47 is detachably covered on the scraping body 46 and forms a closed cavity 45 between the cover 47 and the scraping body 46 .

[0138] By providing the cover 47 and the scraper body 46 to cooperate to form the closed cavity 45 , after the cover 47 is removed from the scraper body 46 , the anti-drop limiter 60 can be easily installed and removed from the positioning protrusion 14 .

[0139] Optionally, the scraper body 46 and the cover body 47 are detachably connected by snap-fitting.

[0140] More specifically, the scraper body 46 also has an extension portion 461 that surrounds the outer periphery of the anti-slip limit member 60 and protrudes toward the side facing away from the mounting seat 10 from the anti-slip limit member 60. The extension portion 461 forms a mounting opening on the side facing away from the mounting seat 10, and the cover body 47 is covered at the mounting opening to form a closed cavity 45 between the scraper body 46 and the cover body 47.

[0141] By arranging an extension portion 461 around the outer periphery of the anti-slip limiter 60 and forming a mounting opening, on the one hand, the installation and disassembly of the anti-slip limiter 60 relative to the positioning protrusion 14 of the mounting seat 10 can be facilitated; on the other hand, the extension portion 461 can also guide the sewage and other impurities scraped by the scraping body 46 to be discharged downward in the vertical direction, reducing the situation of flowing into the closed cavity 45 from the mounting opening, and further reducing the gap between the anti-slip limiter 60 and the scraping structure 40 into which sewage or impurities enter.

[0142] In other embodiments, a concave cavity may be formed on the side of the cover 47 facing the scraping body 46, and the concave cavity surrounds the outer circumference of the anti-slip stopper 60, so as to form a closed cavity 45 between the scraping body 46 and the cover 47. In this way, the installation and removal of the anti-slip stopper 60 can be facilitated, and the gap between the anti-slip stopper 60 and the scraping structure 40 can be reduced to prevent sewage or impurities from entering.

[0143] As described above, along the cleaning direction, the first cleaning roller 20 is located in front of the second cleaning roller 30, and the functions of the two cleaning rollers are different. The function of the first cleaning roller 20 is to wet the surface to be cleaned by rotating, while the function of the second cleaning roller 30 is to wipe the wetted surface to be cleaned by rotating. Therefore, the surface humidity of the first cleaning roller 20 is higher than that of the second cleaning roller 30. Therefore, in the present application, such a difference can be achieved through the following three embodiments.

[0144] See Figure 3 and Figure 4 In one embodiment of the present application, the scraping structure 40 has a first scraping contact portion 48 and a second scraping contact portion 49. The first scraping contact portion 48 has an interference fit with the first cleaning roller 20, and the second scraping contact portion 49 has an interference fit with the second cleaning roller 30. The interference fit between the first scraping contact portion 48 and the first cleaning roller 20 is X1, and the interference fit between the second scraping contact portion 49 and the second cleaning roller 30 is X2, where X1<X2.

[0145] The first scraping contact portion 48 refers to the portion of the scraping structure 40 that directly contacts the first cleaning roller 20 to scrape dirt from the first cleaning roller 20, and the second scraping contact portion 49 refers to the portion of the scraping structure 40 that directly contacts the second cleaning roller 30 to scrape dirt from the second cleaning roller 30. When the scraping structure 40 includes a first scraping member 41 and a second scraping member 42, the first scraping contact portion 48 is provided on the first scraping member 41, and the second scraping contact portion 49 is provided on the second scraping member 42. The first scraping contact portion 48 and the first cleaning roller 20 have an interference fit, resulting in an interference fit between the first scraping contact portion 48 and the first cleaning roller 20, and the second scraping contact portion 49 and the second cleaning roller 30 have an interference fit, resulting in an interference fit between the second scraping contact portion 49 and the second cleaning roller 30.

[0146] When X1 < X2, that is, the second scraping contact portion 49 is pressed more tightly against the corresponding cleaning roller than the first scraping contact portion 48. This allows more of the sewage and other substances on the second cleaning roller 30 to be scraped off, while the first cleaning roller 20 retains a relatively larger amount of water. This allows the first cleaning roller 20 to wet the surface to be cleaned by rotation, while the second cleaning roller 30 wipes the wetted surface to be cleaned by rotation, further enhancing the ability to remove stains from the surface to be cleaned. Preferably, 0.2 mm ≤ X2 - X1 ≤ 1 mm. Research has found that within this range, the cleaning capabilities of the two cleaning rollers can be further enhanced, improving the cleaning effect.

[0147] Specifically, in the embodiment of the present application, the axis of the first cleaning roller 20 and the axis of the second cleaning roller 30 are symmetrically arranged relative to the center plane. The scraping structure 40 includes a first scraping arm 401 extending from the center plane toward the first cleaning roller 20. The first scraping arm 401 has a first scraping contact portion 48. The scraping structure 40 also includes a second scraping arm 402 extending from the center plane toward the second cleaning roller 30. The second scraping arm 402 has a second scraping contact portion 49. The length of the first scraping arm 401 is less than the length of the second scraping arm 402.

[0148] It should be noted that, when the scraping structure 40 includes the first scraping member 41 and the second scraping member 42 , the first scraping member 41 has a first scraping arm 401 , and the second scraping member 42 has a second scraping arm 402 .

[0149] In this way, since the length of the first scraping arm 401 is smaller than the length of the second scraping arm 402, the second scraping contact portion 49 of the second scraping arm 402 is closer to the second cleaning roller 30, that is, the radial distance between the second scraping contact portion 49 and the center axis of the second cleaning roller 30 is smaller than the radial distance between the first scraping contact portion 48 and the center axis of the first cleaning roller 20. This method can more easily achieve interference fit and improve the reliability of the interference fit.

[0150] In another embodiment of the present application, the cleaning mechanism 100 further includes a waterway plate 70, which is disposed on the mounting base 10 and is configured to guide water to the first cleaning roller 20 and the second cleaning roller 30. The average amount of water provided per unit time by the waterway plate 70 to the first cleaning roller 20 is greater than the average amount of water provided per unit time by the waterway plate 70 to the second cleaning roller 30.

[0151] By providing the water channel plate 70, water can be directed to flow toward the first cleaning roller 20 and the second cleaning roller 30, thereby achieving wetting of the first cleaning roller 20 and the second cleaning roller 30. Specifically, the water channel plate 70 is provided with a first water outlet and a second water outlet. The first water outlet discharges water toward the first cleaning roller 20, and the second water outlet discharges water toward the second cleaning roller 30. The first water outlet and the second water outlet can be spray heads or spray nozzles, etc.

[0152] The cleaning mechanism 100 may further include a clean water tank and a water pump, and the clean water tank pumps clean water onto the waterway plate 70 through the power increased by the water pump.

[0153] When the average amount of water provided by the waterway plate 70 to the first cleaning roller 20 per unit time is greater than the average amount of water provided by the waterway plate 70 to the second cleaning roller 30 per unit time, the first cleaning roller 20 will obtain more water. Therefore, the surface humidity of the first cleaning roller 20 is higher than the surface humidity of the second cleaning roller 30. The second cleaning roller 30 can absorb water from the external surface to be cleaned, so the first cleaning roller 20 can wet the surface to be cleaned by rotation, and the second cleaning roller 30 can wipe the wetted surface to be cleaned by rotation, thereby further improving the stain removal ability of the surface to be cleaned.

[0154] Preferably, the ratio of the average amount of water provided per unit time by the waterway plate 70 to the first cleaning roller 20 to the average amount of water provided per unit time by the waterway plate 70 to the second cleaning roller 30 is in the range of 1.5:1 to 3:1. Research has found that within this range, the cleaning capabilities of the two cleaning rollers can be further enhanced, improving the cleaning effect.

[0155] In yet another embodiment of the present application, the water absorption rate of the first cleaning roller 20 is lower than the water absorption rate of the second cleaning roller 30 .

[0156] Water absorption rate refers to the water absorption rate of the material. When the water absorption rate of the material used in the first cleaning roller 20 is less than the water absorption rate of the material used in the second cleaning roller 30, the first cleaning roller 20 can store more water than the second cleaning roller 30, so as to achieve the effect of wetting the surface to be cleaned by rotation, while the second cleaning roller 30 has a large water absorption rate and can be drier, so as to achieve the effect of wiping the wetted surface to be cleaned by rotation.

[0157] In the embodiment of the present application, the scraping structure 40 has a first scraping contact surface 481 . The first scraping contact surface 481 is in contact with the first cleaning roller 20 and is tangent to the outer surface of the first cleaning roller 20 .

[0158] By providing the first scraping contact surface 481 and making it tangential to the outer surface of the first cleaning roller 20, the first scraping contact surface 481 can always maintain contact with the first cleaning roller 20 under the rotation of the first cleaning roller 20. This not only increases the contact area but also makes the contact more reliable, thereby improving the scraping effect. In addition, because the first scraping contact surface 481 is in contact with the first cleaning roller 20, the contact and sealing between the first scraping contact surface 481 and the first cleaning roller 20 are improved during the scraping process, making it difficult for scraped dirty water to leak from the matching gap between the first scraping contact surface 481 and the first cleaning roller 20 to the surface to be cleaned, thereby improving the cleaning effect.

[0159] Preferably, the width of the first scraping contact surface 481 is in the range of 1 mm to 5 mm.

[0160] The width of the first scraping contact surface 481 referred to herein refers to the dimension of the first scraping contact surface 481 in the tangential direction relative to the first cleaning roller 20. Research has found that a width of the first scraping contact surface 481 ranging from 1 mm to 5 mm provides sufficient contact area between the first scraping contact surface 481 and the first cleaning roller 20 to ensure effective scraping without creating excessive resistance that would affect the normal rotation of the first cleaning roller 20.

[0161] In some other embodiments, the scraping structure 40 has a second scraping contact surface 491 . The second scraping contact surface 491 contacts the second cleaning roller 30 and is tangent to the outer surface of the second cleaning roller 30 .

[0162] By providing the second scraping contact surface 491 and making it tangential to the outer surface of the second cleaning roller 30, the second scraping contact surface 491 can always maintain contact with the second cleaning roller 30 under the rotation of the second cleaning roller 30. This not only increases the contact area but also makes the contact more reliable, thereby improving the scraping effect. In addition, because the second scraping contact surface 491 is in contact with the second cleaning roller 30, the contact and sealing between the second scraping contact surface 491 and the second cleaning roller 30 are improved during the scraping process. This makes it difficult for scraped dirty water to leak from the clearance between the second scraping contact surface 491 and the second cleaning roller 30 to the surface to be cleaned, thereby improving the cleaning effect.

[0163] Preferably, the width of the second scraping contact surface 491 is in the range of 1 mm to 5 mm.

[0164] The width of the second scraping contact surface 491 referred to herein refers to the dimension in the tangential direction between the second scraping contact surface 491 and the second cleaning roller 30. Research has found that when the width of the second scraping contact surface 491 ranges from 1 mm to 5 mm, sufficient contact area is provided between the second scraping contact surface 491 and the second cleaning roller 30 to ensure effective scraping without creating excessive resistance that would affect the normal rotation of the second cleaning roller 30.

[0165] In other embodiments, the first scraping contact surface 481 contacts the first cleaning roller 20 and is tangent to the outer surface of the first cleaning roller 20 ; the second scraping contact surface 491 contacts the second cleaning roller 30 and is tangent to the outer surface of the second cleaning roller 30 .

[0166] In some embodiments, the scraping structure 40 also has a first transition slope 403, which is adjacent to the first scraping contact surface 481 and is located on the downstream side of the first scraping contact surface 481 along the forward and reverse rotation of the first cleaning roller 20, and the first transition slope 403 is set at an angle to the first scraping contact surface 481.

[0167] When the first cleaning roller 20 is reversed, since the first transition slope 403 is located on the downstream side of the first scraping contact surface 481 along the forward rotation direction of the first cleaning roller 20, the first transition slope 403 can guide the first scraping contact surface 481 to squeeze the hair on the surface of the first cleaning roller 20, reducing the squeezing resistance. In addition, the reverse rotation of the first cleaning roller 20 can scrape off the dirt inside the first cleaning roller 20 and make the hair flattened by the forward rotation more fluffy, which is more conducive to drying. Specifically, the forward rotation direction of the first cleaning roller 20 is clockwise, and the reverse rotation direction of the first cleaning roller 20 is counterclockwise.

[0168] In some embodiments, the scraping structure 40 also has a second transition slope 404, which is adjacent to the first scraping contact surface 481 and is located on the upstream side of the first scraping contact surface 481 along the forward and reverse rotation of the first cleaning roller 20, and the second transition slope 404 is set at an angle to the first scraping contact surface 481.

[0169] When the first cleaning roller 20 rotates in the forward direction, since the second transition slope 404 is located upstream of the first scraping contact surface 481 along the forward direction of the first cleaning roller 20, the second transition slope 404 can guide the first scraping contact surface 481 to squeeze the hair on the surface of the first cleaning roller 20, reducing the squeezing resistance and making scraping smooth.

[0170] Preferably, a first angle α1 is defined between the first transition slope 403 and the first scraping contact surface 481, with the first angle α1 ranging from 20 to 60 degrees. A second angle is defined between the second transition slope 404 and the first scraping contact surface 481, with the second angle ranging from 20 to 60 degrees. Research has found that within this range, the scraping structure 40 can more smoothly scrape the surface of the first cleaning roller 20, achieving a better scraping effect.

[0171] In some embodiments, the scraping structure 40 also has a third transition slope 405, which is adjacent to the second scraping contact surface 491 and is located on the downstream side of the second scraping contact surface 491 along the forward and reverse rotation of the second cleaning roller 30, and the third transition slope 405 is set at an angle to the second scraping contact surface 491.

[0172] When the second cleaning roller 30 is reversed and the third transition slope 405 is located downstream of the second scraping contact surface 491 along the forward rotation direction of the second cleaning roller 30, the third transition slope 405 can guide the second scraping contact surface 491 to squeeze the hair on the surface of the second cleaning roller 30, reducing the squeezing resistance. The reverse rotation of the second cleaning roller 30 can scrape off the dirt inside the second cleaning roller 30, and can also make the hair flattened by the forward rotation more fluffy, which is more conducive to drying. Specifically, the forward rotation direction of the second cleaning roller 30 is counterclockwise, and the reverse rotation direction of the second cleaning roller 30 is clockwise.

[0173] In some embodiments, the scraping structure 40 also has a fourth transition slope 406, which is adjacent to the first scraping contact surface 481 and is located on the upstream side of the first scraping contact surface 481 along the forward and reverse rotation of the first cleaning roller 20, and the fourth transition slope 406 is set at an angle to the first scraping contact surface 481.

[0174] When the second cleaning roller 30 rotates forward, since the fourth transition slope 406 is located upstream of the second scraping contact surface 491 along the forward rotation direction of the second cleaning roller 30, the fourth transition slope 406 can guide the second scraping contact surface 491 to squeeze the hair on the surface of the second cleaning roller 30, reducing the squeezing resistance.

[0175] Preferably, a third angle α3 is formed between the second transition slope 404 and the second scraping contact surface 491, and the range of the third angle α3 is 20 degrees to 60 degrees. Studies have found that within this range, the scraping structure 40 can more smoothly scrape the surface of the second cleaning roller 30, achieving a better scraping effect.

[0176] It should be understood here that the forward rotation direction of the first cleaning roller 20 refers to the reverse rotation direction of the first cleaning roller 20 when normally cleaning the surface to be cleaned, and the reverse rotation direction of the first cleaning roller 20 is opposite to the forward rotation direction. When the first cleaning roller 20 is in the reverse direction, the first cleaning roller 20 may not clean the surface to be cleaned. Similarly, the forward rotation direction of the second cleaning roller 30 refers to the reverse rotation direction of the second cleaning roller 30 when normally cleaning the surface to be cleaned, and the reverse rotation direction of the second cleaning roller 30 is opposite to the forward rotation direction. When the second cleaning roller 30 is in the reverse direction, the second cleaning roller 30 may not clean the surface to be cleaned. The forward and reverse rotation directions of the first cleaning roller 20 and the second cleaning roller 30 may be the same or opposite.

[0177] In the embodiment of the present application, the scraping structure 40 is provided between the first cleaning roller 20 and the second cleaning roller 30, and the first cleaning roller 20 and the second cleaning roller 30 rotate in opposite directions. Figure 3It can be seen that the forward rotation direction of the first cleaning roller 20 is clockwise, and the forward rotation direction of the second cleaning roller 30 is counterclockwise. When the scraping structure 40 is arranged between the first cleaning roller 20 and the second cleaning roller 30, the scraping contact surfaces of the scraping structure 40 with the first cleaning roller 20 and the second cleaning roller 30 are all arranged between the first cleaning roller 20 and the second cleaning roller 30. Therefore, by making the forward rotation direction of the first cleaning roller 20 clockwise and the forward rotation direction of the second cleaning roller 30 counterclockwise, sewage, excess water or other impurities can be scraped off from below the scraping structure 40. At this time, the scraped sewage, excess water or other impurities can be directly guided from the scraping structure 40 to the dirt receiving member below under the action of gravity, reducing the risk of the scraped sewage, excess water or other impurities leaking from the scraping structure 40 to the cleaned surface.

[0178] Based on the same inventive concept, the present application further provides a cleaning device, comprising a cleaning body and the cleaning mechanism 100 in any of the above embodiments. The cleaning mechanism 100 is mounted on the cleaning body.

[0179] The cleaning body may include a housing and a controller, and may also include structures such as a clean water tank, a sewage tank, and a water pump.

[0180] Specifically, the cleaning device can be a cleaning robot, or a handheld floor scrubber, a handheld floor mop, etc.

[0181] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0182] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A cleaning mechanism, characterized in that: include: Mounting seat; The first cleaning roller and the second cleaning roller are both rotatably mounted on the mounting seat around their own axes and are spaced apart from each other along the cleaning direction; a dirt scraping structure, provided on the mounting seat; and an elastic structure, disposed vertically between the mounting seat and the scraping structure, for providing an elastic force to keep the scraping structure in contact with the first cleaning roller and the second cleaning roller; One of the scraping structure and the mounting seat is provided with a guide groove, and the other is provided with a guide protrusion, one end of the elastic structure is positioned in the guide groove, and the other end of the elastic structure is sleeved on the guide protrusion; The scraping structure has a first scraping contact surface and a first transition inclined surface, the first scraping contact surface is in contact with the first cleaning roller and is tangent to the outer surface of the first cleaning roller; the first transition inclined surface is adjacent to the first scraping contact surface and is located on the downstream side of the first scraping contact surface along the forward rotation direction of the first cleaning roller, and the first transition inclined surface is arranged at an angle to the first scraping contact surface; and / or The scraping structure has a second scraping contact surface and a third transition inclined surface, the second scraping contact surface is in contact with the second cleaning roller and is tangent to the outer surface of the second cleaning roller; the third transition inclined surface is adjacent to the second scraping contact surface and is located on the downstream side of the second scraping contact surface along the forward rotation direction of the second cleaning roller, and the third transition inclined surface is set at an angle to the second scraping contact surface.

2. The cleaning mechanism according to claim 1, characterized in that: The dirt scraping structure is constructed as an integral body.

3. The cleaning mechanism according to claim 2, characterized in that: The scraping structure has a first central axis parallel to a first direction; wherein the first direction is parallel to the axis direction of the first cleaning roller or the second cleaning roller; The elastic structure is arranged on the first central axis; or The elastic structures are symmetrically distributed relative to the first central axis.

4. The cleaning mechanism according to claim 1, characterized in that The scraping structure includes a first scraping member and a second scraping member, and the elastic structure includes a first elastic member and a second elastic member. The first elastic member is arranged between the mounting seat and the first scraping member along the vertical direction, and is used to provide an elastic force to keep the first scraping member in contact with the first cleaning roller. The second elastic member is arranged between the mounting seat and the second scraping member along the vertical direction, and is used to provide an elastic force to keep the second scraping member in contact with the second cleaning roller.

5. The cleaning mechanism according to claim 4, characterized in that: The first scraping member has a second central axis parallel to the first direction, and the first elastic member is arranged on the second central axis; and / or The second scraping member has a third central axis parallel to the first direction, and the second elastic member is arranged on the third central axis.

6. The cleaning mechanism according to any one of claims 1 to 5, characterized in that: The guide protrusion protrudes into the guide groove.

7. The cleaning mechanism according to any one of claims 1 to 5, characterized in that: The elastic force exerted by the elastic structure on the scraping structure ranges from 5 Newtons to 25 Newtons.

8. The cleaning mechanism according to any one of claims 1 to 5, characterized in that: Along the cleaning direction, the first cleaning roller is located in front of the second cleaning roller; the scraping structure has a first scraping contact portion and a second scraping contact portion, the first scraping contact portion and the first cleaning roller have an interference fit, and the second scraping contact portion and the second cleaning roller have an interference fit; The interference between the first scraping contact portion and the first cleaning roller is X1, and the interference between the second scraping contact portion and the second cleaning roller is X2, wherein X1<X2.

9. The cleaning mechanism according to claim 8, characterized in that: 0.2mm≤X2-X1≤1mm.

10. The cleaning mechanism according to claim 8, characterized in that: The axis of the first cleaning roller and the axis of the second cleaning roller are symmetrically arranged relative to the center plane, the scraping structure has a first scraping arm extending from the center plane toward the first cleaning roller, the first scraping arm has the first scraping contact portion, and the scraping structure has a second scraping arm extending from the center plane toward the second cleaning roller, the second scraping arm has the second scraping contact portion; wherein the length of the first scraping arm is smaller than the length of the second scraping arm.

11. The cleaning mechanism according to any one of claims 1 to 5, characterized in that: Along the cleaning direction, the first cleaning roller is located in front of the second cleaning roller; the cleaning mechanism further includes a waterway plate, which is provided on the mounting seat and is used to guide water to the first cleaning roller and the second cleaning roller; The average amount of water provided by the water channel plate to the first cleaning roller per unit time is greater than the average amount of water provided by the water channel plate to the second cleaning roller per unit time.

12. The cleaning mechanism according to claim 11, characterized in that: The ratio of the average amount of water provided by the waterway plate to the first cleaning roller per unit time to the average amount of water provided by the waterway plate to the second cleaning roller per unit time is in the range of 1.5:1 to 3:

1.

13. The cleaning mechanism according to any one of claims 1 to 5, characterized in that: Along the cleaning direction, the first cleaning roller is located in front of the second cleaning roller; and the water absorption rate of the first cleaning roller is smaller than the water absorption rate of the second cleaning roller.

14. The cleaning mechanism according to any one of claims 1 to 5, characterized in that: The width of the first scraping contact surface is in the range of 1 mm to 5 mm; and / or The width of the second scraping contact surface is in the range of 1 mm to 5 mm.

15. The cleaning mechanism according to any one of claims 1 to 5, characterized in that: There is a first angle between the first transition slope and the first scraping contact surface, and the first angle is in a range of 20 degrees to 60 degrees; and / or A third angle is formed between the third transition slope and the second scraping contact surface, and the third angle is in a range of 20 degrees to 60 degrees.

16. The cleaning mechanism according to any one of claims 1 to 5, characterized in that: The cleaning mechanism further comprises an anti-slip limiter, the anti-slip limiter is connected to the mounting seat, and the dirt scraping structure is limited between the anti-slip limiter and the mounting seat.

17. A cleaning device, characterized in that: It comprises a cleaning body and a cleaning mechanism according to any one of claims 1 to 16, wherein the cleaning mechanism is installed on the cleaning body.

Images