Roller assembly, cleaning equipment and cleaning system

Abstract

The utility model provides a roller assembly, cleaning equipment and a cleaning system.The roller assembly is installed on the cleaning equipment so as to clean a surface to be cleaned, and the roller assembly comprises a roller support and a roller; the roller support comprises a containing cavity, a clear water inlet and a dirt suction opening, and an opening is formed in the bottom of the containing cavity. The roller is rotationally mounted in the accommodating cavity, and part of the roller is exposed from the opening; a gap is formed between the top of the roller and the top wall of the containing cavity, the clean water inlet and the dirt suction opening are communicated with the gap, the roller makes contact with the inner wall of the containing cavity to form a contact part, and the contact part is located between the gap and the opening in the rotating direction of the roller. The technical problems that uncleaned surfaces are accidentally polluted, and too much water drips on cleaned surfaces can be solved.

Description

Technical Field

[0001] This disclosure relates to the technical field of cleaning tools, and more specifically to a roller assembly, cleaning equipment, and cleaning system. Background Technology

[0002] A cleaning robot is a floor cleaning device that integrates multiple cleaning functions. The chassis of a cleaning robot is usually equipped with a walking component and a cleaning component. When the walking component moves on the supporting surface, the cleaning component can clean the surface it passes over, including but not limited to mopping and vacuuming.

[0003] During the operation of a cleaning robot, for surfaces that do not require cleaning, the robot can raise its cleaning components to maintain a distance from the surface. However, there is still a possibility that the cleaning components may drip water or other debris onto the surface, causing accidental contamination. Furthermore, even when cleaning surfaces that do require cleaning, excessive water dripping will increase the drying time and reduce cleaning efficiency. Utility Model Content

[0004] In view of the problems existing in the prior art, this disclosure provides a roller assembly, cleaning equipment and cleaning system to improve the technical problems of accidental contamination of non-clean surfaces and excessive dripping of water on clean surfaces.

[0005] To achieve the above and other related objectives, a first aspect of this disclosure provides a roller assembly installed on a cleaning device for cleaning a surface to be cleaned. The roller assembly includes a roller support and a roller; the roller support includes a receiving cavity, a clean water inlet communicating with the receiving cavity, and a suction port, the bottom of which has an opening; the roller is rotatably mounted within the receiving cavity, with a portion of the roller exposed from the opening; a gap exists between the top of the roller and the top wall of the receiving cavity, the clean water inlet and the suction port communicating with the gap; the roller contacts the inner wall of the receiving cavity to form a contact portion, the contact portion being located between the gap and the opening along the direction of rotation of the roller.

[0006] In the above technical solution, there is a gap between the top of the roller and the top wall of the receiving cavity, and the clean water inlet is connected to the gap. Clean water can be sprayed from the clean water inlet onto the roller for cleaning, while excess clean water that is not absorbed by the roller is generated. The gap can accommodate this excess water. Because a contact part is provided between the gap and the opening, forming a contact area between the roller and the inner wall of the receiving cavity, the contact part can prevent excess water from dripping from the opening as the roller rotates. Simultaneously, it also facilitates the roller to absorb water from the inner wall of the receiving cavity, preventing excess water from dripping down the inner wall of the receiving cavity. In addition, the suction port is also connected to the gap, allowing excess water to be sucked out. Through these features, the technical problems of accidental contamination of non-clean surfaces and excessive water dripping from clean surfaces can be improved.

[0007] In one embodiment of the roller assembly disclosed herein, the roller support includes a cover plate covering the outside of the roller; the roller assembly also includes a first scraper assembly connected to the end of the cover plate away from the clean water inlet, at least a portion of the first scraper assembly being in contact with the roller to form at least a portion of the contact portion.

[0008] In the above technical solution, the part of the first scraper assembly that contacts the roller is an extension of the contact area formed between the cover plate and the roller. This further prevents excess water from dripping and also allows the roller to carry away water from the inner wall of the contact area between the first scraper assembly and the roller, preventing water from dripping down the inner wall of the first scraper assembly. The first scraper assembly can also make the water and detergent on the roller surface more evenly distributed, avoiding localized over-wetting or over-drying and ensuring consistent cleaning results.

[0009] In one embodiment of the roller assembly disclosed herein, the first scraper assembly includes a first hard portion and a first soft portion. Along the circumference of the roller, one end of the first hard portion is connected to a cover plate, and the other end is connected to the first soft portion. The end of the first soft portion away from the first hard portion is in contact with the roller.

[0010] In the above technical solution, a first soft part is provided. Because this first soft part has good elasticity, it will not scratch the surface when in contact with the roller, making it especially suitable for high-speed rollers or rollers made of sensitive materials. The first soft part can adapt to the slight deformation or unevenness of the roller, closely conforming to the surface for more thorough water removal. The soft material has good cushioning properties, resulting in less noise when the roller rotates at high speed and smoother machine operation.

[0011] In one embodiment of the roller assembly disclosed herein, the roller support includes a cover plate covering the outside of the roller, and a clean water inlet, a cover plate, and an opening are arranged sequentially along the rotation direction of the roller; the roller assembly also includes a rotating cover plate, which is rotatably mounted on the roller support and has a first state and a second state: in the first state, the rotating cover plate rotates to the outside of the cover plate, exposing the opening; in the second state, the rotating cover plate rotates to the opening to seal the opening.

[0012] In the above technical solution, the rotating cover has a first state and a second state. During cleaning operations, the rotating cover is in the first state. When passing through surfaces that do not need to be cleaned or cannot be cleaned, the rotating cover can be rotated to the second state to block the opening. At this time, the rotating cover isolates the roller from the passing surface, preventing the roller from contaminating or damaging the passing surface, thereby better protecting the passing surface and improving the cleaning quality.

[0013] In one embodiment of the roller assembly disclosed herein, the roller support further includes a side wall, on which both a clean water inlet and a sludge suction port are disposed; the roller assembly further includes a second scraper assembly, which is connected to the end of the side wall away from the clean water inlet, and the second scraper assembly is at least partially in contact with the roller.

[0014] In the above technical solution, both the clean water inlet and the suction port are located on the side wall, achieving efficient space utilization. The rigid structure of the side wall ensures a stable interface between the clean water inlet and the suction port, reducing vibration leakage during high-speed suction. The second scraper assembly is connected to the end of the side wall away from the clean water inlet, i.e., before the contaminated part of the roller rotates to the suction port. Since dirt accumulates on the inner wall of the second scraper assembly, at least a portion of the second scraper assembly is in contact with the roller, which helps the roller to remove the dirt from the inner wall of the second scraper assembly, preventing dirt residue. In addition, the second scraper assembly can also loosen the particulate dirt adsorbed on the roller, facilitating its removal from the suction port, thereby reducing dirt residue on the roller, improving the efficiency and quality of clean water cleaning of the roller, and ultimately improving the cleaning quality of the roller.

[0015] In one embodiment of the roller assembly disclosed herein, the second scraper assembly includes a second rigid portion and a second soft portion, one end of the second rigid portion is connected to a sidewall body, and the other end is connected to the second soft portion, at least a portion of the second soft portion is in contact with the roller.

[0016] In the above technical solution, a second soft part is provided. Because this second soft part has good elasticity, it will not scratch the surface when in contact with the roller, making it especially suitable for high-speed rollers or rollers made of sensitive materials. The second soft part can adapt to the slight deformation or unevenness of the roller, closely conforming to the surface for more thorough scraping of dirt. The soft material has good cushioning properties, resulting in less noise when the roller rotates at high speed and smoother machine operation.

[0017] In one embodiment of the roller assembly disclosed herein, in response to the roller cleaning the surface to be cleaned, the end of the second soft portion away from the second hard portion contacts the surface to be cleaned.

[0018] In the above technical solution, the end of the second soft part away from the second hard part can scrape off residual water stains on the surface to be cleaned, reducing the amount of residual water on the surface to be cleaned. It can also scrape and gather residual dirt on the surface to be cleaned, making it easier to suck out through the suction port.

[0019] In one embodiment of the roller assembly disclosed herein, the roller assembly further includes a comb assembly extending axially along the roller. The comb assembly is mounted on the sidewall and includes a plurality of comb teeth arranged axially along the roller. The plurality of comb teeth are located on the suction path of the suction port and are capable of interfering with the roller.

[0020] In the above technical solution, multiple comb teeth can interfere with the roller, effectively cleaning any tangled material on the roller. The multiple comb teeth are located along the suction path of the suction port, allowing the material to be immediately sucked out through the suction port after being combed away from the roller. This improves the cleaning efficiency of the roller.

[0021] In one embodiment of the roller assembly disclosed herein, the roller assembly further includes a water distribution component extending along the axial direction of the roller. The water distribution component is installed on the side wall and communicates with a clean water inlet. The water distribution component includes a plurality of clean water spray holes arranged along the axial direction of the roller, with the spray direction of the plurality of clean water spray holes facing the roller.

[0022] In the above technical solution, multiple water spray holes arranged along the axial direction of the drum achieve the diversion and pressurization of the clean water flowing in from the water inlet. Combined with the fact that the water spray direction of the multiple nozzles is directed towards the drum, uniform high-pressure cleaning of the drum can be achieved, thereby improving the cleaning efficiency and quality of the drum.

[0023] In one embodiment of the roller assembly disclosed herein, the roller includes a pile structure and a fiber structure disposed on its outer surface, the pile structure and the fiber structure being spaced apart.

[0024] In the above technical solution, the fluff structure is soft and has good adsorption properties, which is beneficial for cleaning fully wet or semi-wet dirt. The fiber structure has high scraping force, which is beneficial for cleaning stubborn stains and does not easily adhere to oil stains, making it easy to wash. The alternating arrangement of the fluff structure and fiber structure helps to improve the cleaning ability of the roller.

[0025] A second aspect of this disclosure also provides a cleaning device including a roller assembly of any of the above, the base having a mounting position, the roller assembly being detachably mounted in the mounting position.

[0026] In the above technical solution, the aforementioned roller assembly is used. Because the side of the roller facing away from the suction port is in contact with the side wall of the receiving cavity, excess water can be prevented from dripping down with the rotation of the roller. Simultaneously, excess water can be sucked out through the suction port. This improves the technical problems of accidental contamination of non-clean surfaces and excessive water dripping from clean surfaces.

[0027] A third aspect of this disclosure also provides a cleaning system, including the aforementioned cleaning equipment and a base station adapted to the cleaning equipment.

[0028] In the above technical solution, the use of the above cleaning equipment can improve the technical problems of accidental contamination of non-clean surfaces and excessive dripping of water on clean surfaces.

[0029] In the disclosed roller assembly, a gap exists between the top of the roller and the top wall of the receiving cavity. A clean water inlet communicates with this gap, allowing clean water to be sprayed from the inlet onto the roller for cleaning. Excess clean water not absorbed by the roller is generated during this process, and the gap can accommodate this excess water. A contact portion is provided between the gap and the opening, where the side of the roller facing away from the suction port contacts the inner wall of the receiving cavity. This contact portion prevents excess water from dripping from the opening as the roller rotates. Simultaneously, it facilitates the roller's absorption of moisture from the inner wall of the receiving cavity, preventing excess water from dripping down the inner wall. Furthermore, the suction port is also communicated with the gap, allowing excess water to be sucked out. These features improve the technical problems of accidental contamination of non-clean surfaces and excessive water dripping from clean surfaces. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a three-dimensional structural schematic diagram of the roller assembly of this disclosure in one embodiment;

[0032] Figure 2 This is a schematic diagram of the roller assembly of the present disclosure from another angle in one embodiment;

[0033] Figure 3 This is a full sectional view of the roller assembly of this disclosure, obtained by taking a section perpendicular to the axis in one embodiment;

[0034] Figure 4 for Figure 3 A schematic diagram of the three-dimensional structure after removing the rollers;

[0035] Figure 5 This is a full sectional view of the roller assembly of this disclosure obtained by cutting through the axis in one embodiment;

[0036] Figure 6 This is a three-dimensional structural diagram including a partial cross-section of the cleaning equipment disclosed herein in one embodiment;

[0037] Figure 7 This is a three-dimensional structural diagram of the cleaning equipment of this disclosure from another angle in one embodiment.

[0038] Component designation explanation:

[0039] 1. Cleaning equipment; 10. Roller assembly; 20. Base; 21. Mounting position; 100. Roller support; 110. Receiving cavity; 120. Clean water inlet; 130. Suction port; 140. Cover plate; 150. Side wall; 160. Opening; 170. Gap; 180. Contact part; 200. Roller; 210. Drive motor; 220. Speed ​​change mechanism; 300. First scraper assembly; 310. First hard part; 320. First soft part; 400. Rotating cover plate; 410. Motor; 420. Gear transmission mechanism; 500. Second scraper assembly; 510. Second hard part; 520. Second soft part; 600. Comb assembly; 610. Comb teeth; 700. Water distribution assembly; 710. Clean water spray nozzle. Detailed Implementation

[0040] The following specific examples illustrate the implementation of this disclosure. Those skilled in the art can easily understand other advantages and effects of this disclosure from the content disclosed in this specification. This disclosure can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this disclosure. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other. It should also be understood that the terminology used in the embodiments of this disclosure is for describing specific implementation schemes and not for limiting the scope of protection of this disclosure. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0041] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise stated in this disclosure, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used in this disclosure, as well as the prior art known to those skilled in the art and the descriptions in this disclosure, may be implemented using any prior art methods, apparatus, and materials similar to or equivalent to the methods, apparatus, and materials in the embodiments of this disclosure.

[0042] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of this disclosure. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this disclosure.

[0043] Please see Figures 1 to 7This disclosure provides a roller assembly 10, a cleaning device 1, and a cleaning system. The roller assembly 10 includes a roller support 100 and a roller 200. The roller 200 contacts the inner wall of the receiving cavity 110 to form a contact portion 180, which can prevent excess water from dripping from the opening 160 as the roller 200 rotates. Simultaneously, the roller 200 also helps to absorb water from the inner wall of the receiving cavity 110, preventing excess water from dripping down the inner wall of the receiving cavity 110. This improves the technical problems of accidental contamination of non-clean surfaces and excessive water dripping from clean surfaces.

[0044] The roller assembly 10 is mounted on the cleaning device 1. The cleaning device 1 involved in this disclosure can be a cleaning robot, including floor scrubbing robots or sweeping robots, but is not limited to these. Taking a floor scrubbing robot as an example, in order to perform its cleaning function, the cleaning device 1 at least includes a roller assembly 10 to perform cleaning operations on the surface to be cleaned. In this embodiment, the cleaning device 1 also includes a water supply device (not shown) for providing clean water to the roller assembly 10. The water supply device includes a liquid storage tank, a pump body, and a pipeline assembly. The cleaning device 1 also includes a suction generator (not shown) connected to the roller assembly 10. The suction generator generates negative pressure through high-speed rotation, sucking the dirt and wastewater adsorbed by the roller 200 into the dirt storage box.

[0045] In some other embodiments, the cleaning device 1 also includes an intelligent control system, which can integrate multiple functions according to actual needs. These functions may include, but are not limited to, autonomous journey planning based on sensors such as accelerometers, gyroscopes, and odometers; obstacle recognition and collision avoidance based on distance sensors and image recognition devices; autonomous walking based on mechanical mechanisms such as drive wheel sets, driven wheel sets, and drivers; human-computer interaction based on physical buttons, virtual buttons, displays, and indicator lights; energy supply based on rechargeable batteries; and intelligent control based on control circuits or control chips, etc., which will not be elaborated upon further.

[0046] Please see Figures 1 to 3 The first aspect of this disclosure provides a roller assembly 10. In one example, the roller assembly 10 includes a roller support 100 and a roller 200. The shape of the roller support 100 is not limited, and can be, for example, square, circular, polygonal, or other irregular shapes. In this embodiment, the roller support 100 is generally a horizontally placed cuboid shape. This arrangement allows for reasonable arrangement with other components in the cleaning device 1, achieving high utilization within a limited space.

[0047] Please see Figure 4The roller support 100 includes a receiving cavity 110, the bottom of which has an opening 160. The shape of the receiving cavity 110 is not limited; for example, it can be a cuboid cavity, a cylindrical cavity, or other irregularly shaped cavities. In this embodiment, the receiving cavity 110 is an approximately cylindrical cavity. A cylindrical cavity has a smooth inner wall, making it less prone to forming hard-to-clean corners, facilitating cleaning, and promoting hygiene.

[0048] Please see Figure 3 The roller 200 is rotatably mounted within the receiving cavity 110, with a portion of the roller 200 exposed from the opening 160. The roller 200 is used to clean the surface to be cleaned. The material of the roller 200 is not limited, as long as it has a certain degree of absorbency to absorb dirt. The shape of the roller 200 is not limited; for example, it can be a cylinder or a polygonal prism. In this embodiment, the roller 200 is a cylinder adapted to the shape of the receiving cavity 110. The cylindrical roller 200 has more stable rotational performance, provides more uniform contact force with the surface to be cleaned, and has better cleaning function. It should be noted that the rotation of the roller 200 is driven by a drive assembly. As long as it can drive the rotation of the roller 200, the structure and type of the drive assembly are not limited. In this embodiment, the drive assembly includes a drive motor 210 and a speed change mechanism 220. The drive motor 210 drives the roller 200 to rotate through the speed change mechanism 220.

[0049] Please see Figure 2 and Figure 4 The roller support 100 also includes a clean water inlet 120 and a suction port 130 communicating with the receiving cavity 110. The clean water inlet 120 is used to introduce clean water into the receiving cavity 110. The shape and number of clean water inlets 120 are not limited, as long as they can achieve a sealed connection with external pipes and communicate with the receiving cavity 110. The shape of the suction port 130 is not limited and can be circular, rectangular, or other irregular shapes. In this embodiment, the suction port 130 is approximately rectangular. Furthermore, the connection between the suction port 130 and the receiving cavity 110 is a smooth transition connection. This design allows for smoother airflow, improves suction efficiency, and reduces noise.

[0050] Please see Figure 3 and Figure 4 Along the rotation direction of the roller 200, the opening 160, the suction port 130, and the clean water inlet 120 are arranged sequentially. It should be noted that the rotation direction in this embodiment is defined as the rotation direction of the roller 200 during the cleaning process. Figure 3As shown in the X direction, the roller 200 rotates in the rotation direction and contacts the surface to be cleaned at the opening 160 to perform the cleaning operation. Next, the dirt and dirty water adsorbed on the roller 200 rotates to the suction port 130 and is discharged through it. Subsequently, the contaminated part of the roller 200 continues to rotate to the clean water inlet 120, where it is cleaned with clean water. Simultaneously, the roller 200 can absorb some clean water, which facilitates the cleaning of the surface.

[0051] Please see Figure 3 A gap 170 exists between the top of the roller 200 and the top wall of the receiving cavity 110. A clean water inlet 120 communicates with the gap 170, allowing clean water to be sprayed from the inlet 120 onto the roller 200 for cleaning. Excess clean water not absorbed by the roller 200 is generated during this cleaning process, and the gap 170 can accommodate this excess water. The roller 200 and the inner wall of the receiving cavity 110 form a contact portion 180. Along the rotation direction of the roller 200, the contact portion 180 is located between the gap 170 and the opening 160, eliminating the gap 170 between the roller 200 and the receiving cavity 110. This contact portion 180 prevents excess water in the gap 170 from dripping down with the rotation of the roller 200. Simultaneously, a suction port 130 also communicates with the gap 170, allowing excess water to be sucked out. The above settings can improve the technical problems of accidental contamination of non-clean surfaces and excessive water dripping onto clean surfaces.

[0052] Please see Figure 3 and Figure 4In one embodiment of the roller assembly 10 disclosed herein, the roller support 100 includes a cover plate 140 covering the outside of the roller 200. Along the rotation direction of the roller 200, a clean water inlet 120, the cover plate 140, and an opening 160 are arranged sequentially. The shape of the cover plate 140 is not limited; for example, it can be an arc surface, a stepped surface, or other irregularly shaped surface. The cover plate 140 includes an open cavity capable of forming a receiving cavity 110. The shape of the inner wall of the cavity is not limited; it can be an arc surface, a stepped surface, or other irregularly shaped surface. In this embodiment, the cover plate 140 has a cavity with an arc surface adapted to the cylindrical roller 200, and its outer surface is also an arc surface corresponding to the cavity. The cover plate 140 serves to protect the roller 200 and to form the receiving cavity 110, providing a controllable environment for accommodating and cleaning the roller 200. For example, the gap 170 between the top of the roller 200 and the top wall of the receiving cavity 110 is formed by the cover plate 140 and the roller 200. In this embodiment, along the rotation direction of the roller 200, the gap 170 gradually narrows until the end of the cover plate 140 near the opening 160 is in complete contact with the roller 200, forming a gradually narrowing semi-enclosed space. The gap 170 can provide space for excess clean water, prevent water from dripping, and facilitate the discharge of excess water from the suction port 130.

[0053] Please see Figure 3 and Figure 4 The roller assembly 10 also includes a first scraper assembly 300, which is connected to the end of the cover plate 140 away from the clean water inlet 120. At least a portion of the first scraper assembly 300 is in contact with the roller 200 to form at least a portion of the contact portion 180. The portion of the first scraper assembly 300 in contact with the roller 200 is an extension of the contact portion 180 formed between the cover plate 140 and the roller 200. This further prevents excess water from dripping. It also facilitates the roller 200 in carrying away water from the inner wall of the contact area between the first scraper assembly 300 and the roller 200, preventing water from dripping down the inner wall of the first scraper assembly 300. The shape and material of the first scraper assembly 300 are not limited and can be any shape and material that can scrape the roller 200. The first scraper assembly 300 extends along the axial direction of the roller 200 to cover the length of the roller 200, which can make the distribution of water and detergent on the surface of the roller 200 more uniform, avoid local over-wetting or over-drying, and ensure consistent cleaning results.

[0054] Please see Figure 3 and Figure 4In one embodiment of the roller assembly 10 disclosed herein, the first scraper assembly 300 includes a first rigid portion 310 and a first soft portion 320. Along the circumference of the roller 200, one end of the first rigid portion 310 is connected to the cover plate 140, and the other end is connected to the first soft portion 320. Considering that the first rigid portion 310 should be resistant to deformation or damage and have good driving capability, it should be able to be fixed in multiple preset positions and provide support for the first soft portion 320. The first rigid portion 310 is made of a material with high compressive strength and high compressive strength. The first rigid portion 310 can be, but is not limited to, a hard plastic material, such as high-styrene rubber or polystyrene, ABS plastic, polyvinyl chloride, etc., and is not specifically limited here. The end of the first soft portion 320 away from the first rigid portion 310 contacts the roller 200 to further scrape away excess moisture from the surface of the roller 200. Considering that the first soft portion 320 needs to directly contact the roller 200, the first soft portion 320 is made of a soft material. The first soft part 320 can be, but is not limited to, a soft rubber material, such as natural rubber, synthetic rubber, polypropylene, polyethylene, silicone, etc., without specific limitations. The first soft part 320 has good elasticity, so it will not scratch the surface when in contact with the roller 200, making it especially suitable for high-speed rollers 200 or rollers 200 made of sensitive materials. The first soft part 320 can adapt to the slight deformation or unevenness of the roller 200, closely conforming to the surface for more thorough water removal. The soft material has good cushioning properties, resulting in less noise when the roller 200 rotates at high speed, and smoother machine operation.

[0055] Please see Figures 1 to 4 In one embodiment of the roller assembly 10 disclosed herein, the roller assembly 10 further includes a rotating cover plate 400, which is rotatably mounted on the roller support 100. The shape of the rotating cover plate 400 is not limited, as long as it has sufficient space during rotation. In this embodiment, the rotating cover plate 400 is selected as an arc-shaped plate that matches the shape of the cover plate 140.

[0056] Please see Figure 3 and Figure 4 The rotating cover 400 has a first state and a second state (not shown): In the first state, the rotating cover 400 rotates to the outside of the cover 140, exposing the opening 160 for cleaning operations. In the second state, the rotating cover 400 rotates to the opening 160 to seal it. When passing a surface that is not needed or cannot be cleaned, the rotating cover 400 can be rotated to the second state. In this state, the rotating cover 400 isolates the roller 200 from the surface being passed, preventing the roller 200 from contaminating or damaging the surface, thereby better protecting the surface and improving cleaning quality.

[0057] Please see Figure 3 and Figure 5It should be noted that the ability of the rotating cover 400 to rotate and lock in both the first and second states can be achieved in various ways, including but not limited to using a motor 410 with a mechanical transmission structure, a servo motor with encoder feedback, and a worm gear with a self-locking structure. In this embodiment, the rotation and locking of the rotating cover 400 are achieved through the motor 410 and the gear transmission mechanism 420, the details of which will not be elaborated further.

[0058] Please see Figure 3 and Figure 5 In one embodiment of the roller assembly 10 disclosed herein, the roller support 100 further includes a side wall 150, on which both the clean water inlet 120 and the suction port 130 are disposed. The side wall 150 serves two purposes: firstly, it constructs the receiving cavity 110, providing a controllable environment for clean water distribution and waste collection, thus achieving efficient space utilization; secondly, the rigid structure of the side wall 150 ensures a stable interface between the clean water inlet 120 and the suction port 130, reducing vibration leakage during high-speed suction from the suction port 130. The structural form of the side wall 150 is not limited, as long as it can be installed within the limited space of the cleaning equipment 1 and can construct the clean water inlet 120 and the suction port 130. It should be noted that, along the rotation direction of the roller 200, the opening 160, the side wall 150, and the cover plate 140 are arranged sequentially, and the suction port 130 and the clean water inlet 120 are arranged sequentially on the side wall 150. The system achieves three steps: cleaning the roller 200 at the opening 160, draining the dirt and dirty water adsorbed on the roller 200 through the suction port 130, and cleaning the contaminated parts of the roller 200 through the clean water inlet 120. This design efficiently utilizes space and improves cleaning efficiency. The shape of the side wall 150 is not limited; for example, it can be a curved surface, a stepped surface, or other irregularly shaped surface. The side wall 150 includes an open cavity that can form a receiving cavity 110. The shape of the inner wall of the cavity is not limited; it can be a curved surface, a stepped surface, or other irregularly shaped surface. In this embodiment, the inner wall of the side wall 150 is a curved surface adapted to the roller 200, and the outer surface of the side wall 150 is a plane.

[0059] Please see Figure 3 and Figure 5In one embodiment of the roller assembly 10 disclosed herein, the roller assembly 10 further includes a second scraper assembly 500, which is connected to the end of the sidewall 150 away from the clean water inlet 120, i.e., before the contaminated portion of the roller 200 rotates to the suction port 130. Since dirt accumulates on the inner wall of the second scraper assembly 500, it is configured to at least partially contact the roller 200. This arrangement facilitates the roller 200 in removing dirt from the inner wall of the second scraper assembly 500, preventing dirt residue. Furthermore, the second scraper assembly 500 can scrape or loosen particulate dirt adsorbed by the roller 200 on the surface to be cleaned, thereby reducing dirt residue on the roller 200 and improving the efficiency and quality of clean water cleaning of the roller 200. It can be understood that the dirt scraped off the roller 200 is to prevent dirt from adhering to the roller 200 and not being discharged from the suction port 130, thus ensuring the roller 200 is not thoroughly cleaned. The second scraper assembly 500 can loosen the dirt adhering to the roller 200 by scraping the brush, so that it can be sucked into the suction port 130 and discharged.

[0060] Please see Figure 3 and Figure 5 In one embodiment of the roller assembly 10 disclosed herein, the second scraper assembly 500 includes a second rigid portion 510 and a second soft portion 520. One end of the second rigid portion 510 is connected to the sidewall 150, and the other end is connected to the second soft portion 520. Considering that the second rigid portion 510 should be resistant to deformation or damage and have good driving capability, it should be able to be fixed in multiple preset positions and provide support for the second soft portion 520. The rigid portion 510 is made of a material with high compressive strength and compressive strength. The second rigid portion 510 can be, but is not limited to, a hard plastic material, such as high-styrene rubber or polystyrene, ABS plastic, polyvinyl chloride, etc., and is not specifically limited herein. At least a portion of the second soft portion 520 is in contact with the roller 200 to further scrape or loosen particles adhering to the roller 200. Considering that the second soft portion 520 needs to be in direct contact with the roller 200, the second soft portion 520 is made of a soft material. The second soft part 520 can be, but is not limited to, a soft rubber material, such as natural rubber, synthetic rubber, polypropylene, polyethylene, silicone, etc., without specific limitations. The second soft part 520 has good elasticity, so it will not scratch the surface when in contact with the roller 200, making it especially suitable for high-speed rollers 200 or rollers 200 made of sensitive materials. The second soft part 520 can adapt to the slight deformation or unevenness of the roller 200, closely conforming to the surface for more thorough scraping of dirt. The soft material has good cushioning properties, resulting in less noise when the roller 200 rotates at high speeds and smoother machine operation.

[0061] Please see Figure 3 and Figure 5In one embodiment of the roller assembly 10 disclosed herein, in response to the roller 200 cleaning the surface to be cleaned, the end of the second soft portion 520 away from the second hard portion 510 contacts the surface to be cleaned. This scrapes away residual water stains on the surface to be cleaned, reducing the amount of residual water on the surface to be cleaned. It can also scrape and gather residual dirt on the surface to be cleaned, making it easier for the dirt to be sucked out through the suction port 130.

[0062] Please see Figures 3 to 5 In one embodiment of the roller assembly 10 disclosed herein, the roller assembly 10 further includes a comb assembly 600 extending axially along the roller 200, the comb assembly 600 being mounted on the sidewall 150. The comb assembly 600 includes a plurality of comb teeth 610 arranged axially along the roller 200, so that the comb teeth 610 can cover the length direction of the roller 200, thereby comprehensively and uniformly removing tangled material from the roller 200. The plurality of comb teeth 610 can interfere with the roller 200, achieving the effect of cleaning tangled material on the roller 200. The plurality of comb teeth 610 are located on the suction path of the suction port 130, so that after the comb teeth 610 comb the tangled material away from the roller 200, it can be immediately sucked out through the suction port 130. This improves the cleaning efficiency of the roller 200.

[0063] Please see Figure 3 and Figure 5 In one embodiment of the roller assembly 10 disclosed herein, the roller assembly 10 further includes a water-dividing component 700 extending axially along the roller 200, so that the water-dividing component 700 can cover the length direction of the roller 200, thereby performing comprehensive and uniform cleaning of the roller 200. The water-dividing component 700 is installed on the side wall 150 and connected to the clean water inlet 120. The water-dividing component 700 includes a plurality of clean water spray holes 710 arranged axially along the roller 200, realizing the diversion and pressurization of clean water flowing into the clean water inlet 120. The spray direction of the plurality of clean water spray holes 710 is towards the roller 200, which can perform uniform high-pressure cleaning of the roller 200, thereby improving the cleaning efficiency and cleaning quality of the roller 200.

[0064] In one embodiment of the roller assembly 10 disclosed herein, the roller 200 includes a pile structure (not shown) and a fiber structure (not shown) disposed on its outer surface, with the pile structure and fiber structure spaced apart. The pile structure is soft and has good adsorption properties, which is beneficial for cleaning fully wet or semi-wet dirt. The fiber structure has high abrasive power, which is beneficial for cleaning stubborn stains and does not easily adhere to oil stains, making it easy to clean. The length of the pile structure and the fiber structure is greater than or equal to 10 mm and less than or equal to 18 mm. If the length is less than 10 mm, the water absorption capacity of the pile structure and the fiber structure will be reduced, and the rebound force when bending will be small, weakening the patting force on the surface to be cleaned. If the length is greater than 18 mm, there will be problems with hair entanglement and dirt accumulation. Therefore, the setting of 10 mm to 18 mm can give the roller 200 ideal cleaning power, water absorption and durability.

[0065] It should be noted that the terms "fluffy structure" and "fiber structure" refer to the microstructural state of the materials. Fluffy structures possess high bulk and softness, and can be made from various materials, including but not limited to nylon (Polyamide, PA), polyethylene terephthalate (PET), and polyethylene (PE). Fiber structures possess high flexibility, and can be made from the same or different materials as the fluffy structure. Fiber structures also come in various materials, including but not limited to polyethylene terephthalate (PET), polypropylene (PP), and thermoplastic elastomer (TPE). In this embodiment, the fluffy structure uses PA, and the fiber structure uses PET. Of these two materials, PA has better moisture absorption, which is beneficial for cleaning wet dirt, while PET has high abrasion resistance and a fine cleaning power, and is less prone to absorbing oil stains and dries quickly. This roller 200 not only improves the ability to clean wet dirt and stubborn stains but also resists bacterial growth and is durable.

[0066] Please see Figure 6 and Figure 7A second aspect of this disclosure also provides a cleaning device 1, which includes a base 20 and the aforementioned roller assembly 10. The base 20 is the main structural component of the cleaning device 1, and the roller assembly 10 and other functional components are detachably installed within the base 20. In this embodiment, the base 20 has a mounting position 21, and the roller assembly 10 is detachably installed in the mounting position 21. The mounting position 21 may be a recessed structure adapted to accommodate the roller assembly 10. The cleaning device 1 including the roller assembly 10, due to the contact between the roller 200 and the inner wall of the receiving cavity 110, can prevent excess water from dripping down with the rotation of the roller 200. Simultaneously, it also facilitates the roller 200 in absorbing water from the inner wall of the receiving cavity 110, preventing excess water from dripping down the inner wall of the receiving cavity 110. This can improve the technical problems of accidental contamination of non-clean surfaces and excessive water dripping from clean surfaces.

[0067] A third aspect of this disclosure also provides a cleaning system (not shown in the figures), which includes the cleaning device 1 described above and a base station (not shown in the figures) adapted to the cleaning device 1. The cleaning system including the cleaning device 1 improves upon the technical problems of accidental contamination of non-clean surfaces and excessive water dripping from clean surfaces.

[0068] In the roller assembly disclosed herein, a gap exists between the top of the roller and the top wall of the receiving cavity. A clean water inlet communicates with this gap, allowing clean water to be sprayed onto the roller for cleaning. Excess clean water not absorbed by the roller is generated during this process, and the gap can accommodate this excess water. A contact portion is provided between the gap and the opening, forming a contact area between the roller and the inner wall of the receiving cavity. This contact portion prevents excess water from dripping from the opening as the roller rotates. Simultaneously, it facilitates the roller's absorption of moisture from the inner wall of the receiving cavity, preventing excess water from dripping down the inner wall. This improves upon the technical problems of accidental contamination of non-clean surfaces and excessive water dripping from clean surfaces. Therefore, this disclosure effectively overcomes some practical problems in the prior art, thus possessing high utilization value and practical significance.

[0069] The above embodiments are merely illustrative of the principles and effects of this disclosure and are not intended to limit this disclosure. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this disclosure. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this disclosure should still be covered by the claims of this disclosure.

Claims

1. A roller assembly (10), mounted on a cleaning device for cleaning a surface to be cleaned, characterized in that, include: A roller support (100) includes a receiving cavity (110), a clean water inlet (120) communicating with the receiving cavity (110), and a sludge suction port (130). The bottom of the receiving cavity (110) has an opening (160). A roller (200) is rotatably mounted in the receiving cavity (110), with a portion of the roller (200) exposed from the opening (160); There is a gap (170) between the top of the roller (200) and the top wall of the receiving cavity (110). The clean water inlet (120) and the sewage suction port (130) are both connected to the gap (170). The roller (200) and the inner wall of the receiving cavity (110) contact each other to form a contact part (180). Along the rotation direction of the roller (200), the contact part (180) is located between the gap (170) and the opening (160).

2. The roller assembly (10) according to claim 1, characterized in that, The roller support (100) includes a cover plate (140) covering the outside of the roller (200); The roller assembly (10) further includes a first scraper assembly (300) connected to the end of the cover plate (140) away from the clean water inlet (120), and at least a portion of the first scraper assembly (300) is in contact with the roller (200) to form at least a portion of the contact portion (180).

3. The roller assembly (10) according to claim 2, characterized in that, The first scraper assembly (300) includes a first hard part (310) and a first soft part (320). Along the circumference of the roller (200), one end of the first hard part (310) is connected to the cover plate (140), and the other end is connected to the first soft part (320). The end of the first soft part (320) away from the first hard part (310) is in contact with the roller (200).

4. The roller assembly (10) according to claim 1, characterized in that, The roller support (100) includes a cover plate (140) covering the outside of the roller (200), and the clean water inlet (120), the cover plate (140) and the opening (160) are arranged in sequence along the rotation direction of the roller (200); the roller assembly (10) also includes a rotating cover plate (400), which is rotatably mounted on the roller support (100) and has a first state and a second state: In the first state, the rotating cover (400) rotates to the outside of the cover (140), exposing the opening (160); In the second state, the rotating cover (400) rotates to the opening (160) to block the opening (160).

5. The roller assembly (10) according to claim 1, characterized in that, The roller support (100) also includes a side wall (150), and the clean water inlet (120) and the sewage suction port (130) are both provided on the side wall (150); The roller assembly (10) further includes a second scraper assembly (500), which is connected to the end of the side wall (150) away from the clean water inlet (120) and is at least partially in contact with the roller (200).

6. The roller assembly (10) according to claim 5, characterized in that, The second scraper assembly (500) includes a second hard part (510) and a second soft part (520), one end of the second hard part (510) is connected to the side wall body (150), and the other end is connected to the second soft part (520), at least a portion of the second soft part (520) is in contact with the roller (200).

7. The roller assembly (10) according to claim 6, characterized in that, In response to the roller (200) cleaning the surface to be cleaned, the end of the second soft part (520) away from the second hard part (510) comes into contact with the surface to be cleaned.

8. The roller assembly (10) according to claim 5, characterized in that, The roller assembly (10) further includes a comb tooth assembly (600) extending axially along the roller (200), the comb tooth assembly (600) being mounted on the side wall body (150), the comb tooth assembly (600) including a plurality of comb teeth (610) arranged axially along the roller (200), the plurality of comb teeth (610) being located on the suction path of the suction port (130), and the plurality of comb teeth (610) being able to interfere with the roller (200).

9. The roller assembly (10) according to claim 5, characterized in that, The roller assembly (10) further includes a water distribution assembly (700) extending axially along the roller (200). The water distribution assembly (700) is installed on the side wall (150) and communicates with the clean water inlet (120). The water distribution assembly (700) includes a plurality of clean water nozzles (710) arranged axially along the roller (200), and the water spraying direction of the plurality of clean water nozzles (710) is towards the roller (200).

10. The roller assembly (10) according to claim 1, characterized in that, The roller (200) includes a pile structure and a fiber structure disposed on its outer surface, the pile structure and the fiber structure being disposed alternately.

11. A cleaning device (1), characterized in that, Includes a base (20) and a roller assembly (10) as described in any one of claims 1-10, the base (20) having a mounting position to which the roller assembly (10) is detachably mounted.

12. A cleaning system, characterized in that, It includes the cleaning device (1) as described in claim 11 and a base station adapted to the cleaning device (1).

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