Cleaning device

Abstract

The invention relates to cleaning equipment. The roller cover wraps at least part of the periphery of the roller mop, and the roller cover is rotationally connected to the roller assembly through a connecting part so that the roller cover can be turned over downwards or upwards. The driving mechanism is at least used for driving the roller assembly to ascend or descend. In the axial direction of the roller mop, the transmission structure is located at the end of the roller mop, one of the first transmission part and the second transmission part is arranged on the base, and the other one is arranged on the roller cover; the first transmission part and the second transmission part move in a matched mode so that the roller cover can turn over downwards or upwards. When the roller assembly is located at the lifting position, the roller cover is located at the blocking position, and part of the roller cover is located at the distance between the roller mop and the to-be-cleaned face. When the roller assembly is located at the descending position, the roller cover is located at the avoiding position, and the roller mop makes contact with the to-be-cleaned face. According to the cleaning equipment, the structure of a driving system can be simplified and the production cost can be reduced under the condition that the roller mop is lifted and translated.

Description

[0001] This application claims priority to Chinese Patent Application No. 202512057496.7, filed with the Chinese Patent Office on December 31, 2025, entitled "Roller Drive Device, Roller Assembly and Cleaning Equipment", the whole or part of which is incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of cleaning equipment technology, and more particularly to a cleaning device. Background Technology

[0003] Cleaning equipment is a type of intelligent cleaning appliance that can be used to automatically or assistedly clean surfaces. Through mechanization and automation, cleaning equipment reduces the physical exertion of manual cleaning and improves cleaning efficiency and convenience.

[0004] During the cleaning process, the roller typically needs to contact the ground to achieve a cleaning effect. A roller cover can shield the roller, reducing the splashing of dirt from the roller onto surrounding areas. Furthermore, the roller cover can prevent cleaning solution drips from the roller, avoiding secondary contamination of the surface being cleaned.

[0005] In the existing technology, the roller cover is driven by a drive motor and transmission structures such as gear sets and conveyor belts. The structure is complex and occupies a large space, which affects the miniaturization and lightweight design of cleaning equipment. Summary of the Invention

[0006] In view of this, the present disclosure provides a cleaning device that simplifies the structure of the drive system and reduces production costs while realizing the lifting and translating of the roller mop.

[0007] According to some embodiments of this disclosure, a cleaning device is provided, comprising:

[0008] A base, wherein the base has a receiving cavity on the side facing the surface to be cleaned, and the receiving cavity has a cleaning port on the side facing the surface to be cleaned;

[0009] A roller assembly is movably connected to the base, at least a portion of the roller assembly is retractable into the receiving cavity, the roller assembly includes a roller mop, the roller mop is rotatably disposed, and the axial direction of the roller mop is parallel to the plane of the base;

[0010] A roller cover that covers at least a portion of the outer periphery of the roller mop, the roller cover being rotatably connected to the roller assembly via a connecting portion, such that the roller cover can be flipped down or up to have a blocking position and a clearance position;

[0011] A drive mechanism is disposed on the base or the roller assembly, and the drive mechanism is at least used to drive the roller assembly to lift or lower, so that the roller assembly has a lifted position and a lowered position;

[0012] The transmission structure includes a first transmission part and a second transmission part, which are located at the end of the roller mop along the axial direction of the roller mop. One of the first transmission part and the second transmission part is disposed on the base, and the other is disposed on the roller cover. The first transmission part and the second transmission part cooperate to move, and the roller cover can be flipped downward or upward.

[0013] When the roller assembly is in the raised position, the roller cover is in the blocking position, the roller mop has a gap with the surface to be cleaned, and a portion of the roller cover is located at the gap between the roller mop and the surface to be cleaned;

[0014] When the roller assembly is in the descending position, the roller cover is in the avoidance position, the roller cover is detached from the roller mop and the surface to be cleaned, and the roller mop is in contact with the surface to be cleaned.

[0015] In one possible implementation, the roller cover includes an arcuate cover that covers at least a portion of the outer periphery of the roller mop along the circumference of the roller mop, such that when the roller assembly is in the raised position, a portion of the arcuate cover is located at the distance between the roller mop and the surface to be cleaned.

[0016] Along the axial direction of the roller mop, the connecting part is located at the first end of the arc-shaped cover, and the connecting part and the arc-shaped cover form an open space that can accommodate part of the roller mop; the second end of the arc-shaped cover is slidably connected to the roller assembly along the circumference of the roller mop.

[0017] The base is provided with an opening that allows the roller assembly to expand outward or contract inward along the axial direction of the roller cloth. The first end is the end of the arc-shaped cover away from the opening, and the second end is the end of the arc-shaped cover close to the opening.

[0018] In one possible implementation, the first transmission part protrudes from the surface of the connecting part facing away from the arc-shaped cover, and the second transmission part protrudes from the surface of the base facing the receiving cavity;

[0019] The first transmission part is provided with a transmission arc surface for cooperating with the base.

[0020] In one possible implementation, the transmission arc surface includes a first arc surface and a second arc surface, wherein the first arc surface and the second arc surface are used to cooperate with the second transmission part in sequence when the roller assembly is lifted;

[0021] Wherein, the radius of curvature of the first arc surface is greater than or equal to the radius of curvature of the second arc surface.

[0022] In one possible implementation, when the roller assembly is in the descending position, the first transmission part and the second transmission part have a first interval along the height direction of the base.

[0023] In one possible implementation, the roller assembly includes a roller support disposed on the base, the roller support having a receiving cavity for accommodating the roller mop, the roller mop being movably connected to the base via the roller support;

[0024] An elastic element is provided between the roller cover and the roller support. The elastic element is used to provide support for the roller cover when it is in the avoidance position, and to provide a driving force for the roller cover to switch to the avoidance position when it is in the blocking position.

[0025] In one possible implementation, one end of the elastic element is connected to the roller support, and the other end of the elastic element is connected to the roller cover;

[0026] When the roller cover is in the avoidance position, the elastic element has a pre-tightening angle, which is greater than or equal to 50° and less than or equal to 90°.

[0027] In one possible implementation, the roller cover is provided with a reset element, and the base is provided with a third transmission part;

[0028] When the roller cover is in the clearance position, there is a second gap between the reset member and the third transmission part along the height direction of the base;

[0029] When the roller cover is stuck and cannot be reset to the avoidance position, the roller assembly descends, and the reset member moves in conjunction with the third transmission unit so that the third transmission unit provides driving force for the roller cover to switch to the avoidance position.

[0030] In one possible implementation, the cleaning device further includes a guide structure comprising a guide portion and a guide groove, the guide portion being disposed at one end of the arc-shaped cover away from the connecting portion along the axial direction of the roller mop, and the guide groove being disposed on the roller support;

[0031] The guide portion moves in conjunction with the guide groove so that the roller cover switches between the avoidance position and the blocking position along the circumference of the roller cloth.

[0032] In one possible implementation, the cross-sectional shape of the guide groove and / or the guide portion does not match the circumferential movement trajectory of the roller cover along the roller mop, and the cross-section is perpendicular to the axial direction of the roller mop.

[0033] In one possible implementation, a limiting structure is also included, which is disposed on the roller cover and / or the roller support, and the limiting structure is used to constrain the flip angle of the roller cover.

[0034] In one possible implementation, the arc-shaped cover is provided with a reinforcing portion connected to the guide portion, the thickness of the reinforcing portion being greater than the thickness of the arc-shaped cover, and the thickness of the guide portion being less than the thickness of the arc-shaped cover.

[0035] In one possible implementation, the roller assembly further includes a scraping structure disposed on the roller support, the scraping structure being partially located in the receiving cavity, and the scraping structure including a scraping strip that presses against the roller mop.

[0036] When the roller cover is in the avoidance position along the travel direction of the cleaning equipment, the roller cover and the scraping structure are respectively located on both sides of the center of the roller mop.

[0037] In one possible implementation, the roller assembly further includes a liquid distribution assembly, which includes a water distribution channel and a cover plate. The water distribution channel is disposed on the roller support, and the cover plate covers the water distribution channel.

[0038] Along the radial direction of the roller mop, the roller cover is located outside the cover plate, and there is a movable gap between the roller cover and the cover plate.

[0039] In one possible implementation, the drive mechanism includes a drive displacement assembly, which is at least used to drive the roller assembly to expand outward or retract inward along the axial direction of the roller fabric, so as to have an expanding position and a retracting position.

[0040] When the roller assembly is in the extended position, at least a portion of the roller assembly can extend out of the base, a portion of the roller assembly is located in the receiving cavity of the base, and another portion of the roller assembly extends beyond the outside of the base; along the axial direction of the roller assembly, the portion of the roller assembly outside the base is larger than the portion of the roller assembly outside the base when the roller assembly is in the retracted position.

[0041] The roller cover expands outward or retracts inward synchronously with the roller assembly.

[0042] In this embodiment, when cleaning the dry sweeping area, the roller assembly can be controlled to be in a raised position. A transmission structure allows the roller cover to be in a lowered position. The roller cover prevents liquid from dripping from the roller mop onto the dry sweeping area.

[0043] Therefore, the cleaning equipment can seamlessly switch between wet mopping and dry sweeping modes. When cleaning hard floors or other areas requiring wet mopping, the equipment can operate in wet mopping mode. When cleaning carpets or other areas requiring dry sweeping, the equipment can automatically switch to dry sweeping mode to minimize carpet wetting during the process. During this process, the cleaning equipment can operate stably without stopping, improving cleaning efficiency and enhancing the user experience.

[0044] Specifically, when the cleaning equipment switches from a wet mopping area to a dry sweeping area, the drive mechanism can control the roller assembly to lift. Since the roller cover is rotatably connected to the roller assembly, the lifting of the roller assembly can provide an upward force to the connection area between the roller cover and the roller assembly, so that the first and second drive parts move closer together. When the first and second drive parts are connected, the continuous lifting of the connection area can create a relative force between the first and second drive parts, so that the base can provide a downward flipping force to the roller cover, allowing the roller cover to flip downward to the blocking position.

[0045] In summary, the lifting of the roller assembly provides the driving force for the downward flipping of the roller cover. Therefore, the drive mechanism is mainly used to provide power for the lifting or lowering of the roller assembly. The movement of the roller assembly provides the driving force for the movement of the roller cover. Thus, the cleaning equipment can achieve the movement of the roller assembly and roller cover without the need for an additional drive mechanism. This reduces the need for adding a drive mechanism and related mechanical structures, which would lead to complex structures, occupy more space in the cleaning equipment, and hinder the possibility of miniaturization and lightweight design.

[0046] It's easy to understand that the miniaturized design of cleaning equipment allows it to easily access low, confined spaces such as under beds and sofas, reducing blind spots and improving the thoroughness and coverage of cleaning. It also facilitates home storage. The lightweight design of cleaning equipment reduces the load on the drive system and the rotating roller mop, lowering energy consumption and improving battery life.

[0047] In this embodiment, the roller assembly and roller cover can be linked. Compared to controlling the movement of the roller assembly and roller cover separately through two independent drive mechanisms, or controlling the movement of the roller assembly and roller cover through two independent transmission systems, in this embodiment, the movement of the roller assembly can directly cause the roller cover to flip, which is beneficial to improving the synchronization of the movement of the roller assembly and roller cover. It is less likely to occur where the roller cover fails to flip downwards when the roller assembly rises, or fails to rise when the roller assembly descends, due to delays in the independent drive mechanisms or response deviations in the independent transmission systems, thus improving the reliability of cleaning operations.

[0048] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0049] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0050] Figure 1 This is a three-dimensional structural schematic diagram of a cleaning device according to some embodiments of the present disclosure;

[0051] Figure 2 This is another perspective structural schematic diagram of a cleaning device according to some embodiments of the present disclosure;

[0052] Figure 3 This is a partial structural schematic diagram of a cleaning device according to some embodiments of the present disclosure;

[0053] Figure 4 This is a partial cross-sectional view of a cleaning device when the roller cover is in a blocking position, according to some embodiments of the present disclosure.

[0054] Figure 5 This is a partial cross-sectional view of a cleaning device when the roller cover is in an avoidance position, according to some embodiments of the present disclosure.

[0055] Figure 6 This is a partial cross-sectional view of a cleaning device when a roller assembly is passively lifted, according to some embodiments of the present disclosure.

[0056] Figure 7 This is a partial cross-sectional view of a cleaning device when the roller cover is in the blocking position, according to some other embodiments of this disclosure;

[0057] Figure 8 This is a partial cross-sectional view of a cleaning device when the roller cover is in an avoidance position, according to some other embodiments of the present disclosure;

[0058] Figure 9 This is a three-dimensional structural schematic diagram of a roller cover according to some embodiments of the present disclosure;

[0059] Figure 10 This is another perspective structural schematic diagram of a roller cover according to some embodiments of the present disclosure;

[0060] Figure 11 This is a three-dimensional structural schematic diagram of a base according to some embodiments of the present disclosure;

[0061] Figure 12 yes Figure 6 Enlarged view of point A in the middle;

[0062] Figure 13 This is a partially exploded structural diagram of a cleaning device according to some embodiments of the present disclosure;

[0063] Figure 14 yes Figure 13 Enlarged view of point B in the middle;

[0064] Figure 15 This is a partial structural schematic diagram of a cleaning device according to some embodiments of the present disclosure;

[0065] Figure 16 yes Figure 15 Enlarged view of point C in the middle;

[0066] Figure 17 yes Figure 15 Enlarged view of point D in the middle;

[0067] Figure 18 This is another partial cross-sectional view of a cleaning device when the roller cover is in the blocking position, according to some embodiments of the present disclosure.

[0068] Explanation of reference numerals in the attached figures

[0069] 100 - Cleaning equipment;

[0070] 110-Base; 110a-Receiving cavity; 110b-Cleaning port; 110c-Opening; 111-Third transmission unit;

[0071] 120 - Roller assembly; 121 - Roller mop; 122 - Roller bracket; 122a - Receiving cavity; 122b - Mounting slot;

[0072] 130-Roller cover; 130a-Open space; 131-Connecting part; 131a-Mounting hole; 132-Arc-shaped cover; 132a-First end; 132b-Second end; 133-Reset part; 134-Guide part; 135-Reinforcing part; 136-Fixing post;

[0073] 140 - Drive mechanism; 141 - Drive displacement assembly; 142 - Power source;

[0074] 150 - Transmission structure; 151 - First transmission part; 1511 - Transmission arc surface; 151a - First arc surface; 151b - Second arc surface; 152 - Second transmission part;

[0075] 160 - Elastic element; 161 - First arm; 162 - Second arm;

[0076] 170 - Guide structure; 170a - Guide groove;

[0077] 181-First limiting member; 1811-First limiting part; 1812-Second limiting part; 182-Second limiting member; 1821-Third limiting part; 1822-Fourth limiting part;

[0078] 190 - Scraping structure; 191 - Scraper blade; 192 - Sludge collection trough;

[0079] 200 - Liquid distribution assembly; 210 - Water distribution channel; 220 - Cover plate;

[0080] 300-Sewage tank;

[0081] X-axis; Y-direction of travel; Z-height direction. First interval, second spacing. Detailed Implementation

[0082] Some embodiments of this disclosure will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. Various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will become apparent upon understanding this disclosure. For example, the order of operations described herein is merely illustrative and is not limited to those orders set forth herein, but can be changed as will become apparent upon understanding this disclosure, except for operations that must be performed in a particular order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0083] The embodiments described in the following examples of this disclosure are not representative of all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0084] This application provides a cleaning device. For example, this application provides a cleaning device, which includes, but is not limited to, a sweeping robot, a floor scrubbing robot, a sweeping and mopping robot, a floor cleaning machine, or a base station having the above-mentioned sweeping robot, floor scrubbing robot, sweeping and mopping robot, or floor cleaning machine.

[0085] Taking a robotic vacuum cleaner as an example, cleaning equipment can be used for automatic or assisted floor cleaning. Cleaning equipment can reduce the physical exertion of manual cleaning through mechanization and automation technologies, and can improve cleaning efficiency and convenience. The cleaning equipment described in this application embodiment can be applied to home or industrial environments, and is not limited thereto.

[0086] The cleaning equipment may be equipped with a roller assembly. The roller assembly rotates the roller mop around its own axis to perform deep cleaning of the surface to be cleaned via wet mopping. A roller cover can shield and protect the roller mop, reducing the splashing of dirt from the roller mop onto surrounding areas. Furthermore, the roller cover can also prevent cleaning solution drips from the roller, avoiding secondary contamination of the surface to be cleaned.

[0087] In the existing technology, the roller cover is driven by a drive motor and transmission structures such as gear sets and conveyor belts. The structure is complex and occupies a large space, which affects the miniaturization and lightweight design of cleaning equipment.

[0088] Based on the above-mentioned technical problems, this application provides a cleaning device 100. The cleaning device 100 may include a base 110, a roller assembly 120, a roller cover 130, a drive structure, and a transmission structure 150.

[0089] The cleaning device 100 of this application embodiment is described below with reference to the accompanying drawings.

[0090] See Figures 1 to 12 As shown, the base 110 has a receiving cavity 110a on the side facing the surface to be cleaned. The receiving cavity 110a has a cleaning port 110b on the side facing the surface to be cleaned. A roller assembly 120 is movably connected to the base 110. At least a portion of the roller assembly 120 can be housed in the receiving cavity 110a. The roller assembly 120 includes a roller mop 121. The roller mop 121 is rotatably disposed, and the axial direction X of the roller mop 121 is parallel to the plane of the base 110.

[0091] The roller cover 130 covers at least a portion of the outer periphery of the roller mop 121. The roller cover 130 is rotatably connected to the roller assembly 120 via a connecting part 131, such that the roller cover 130 can be flipped down or up to have a blocking position and a clearance position.

[0092] A drive mechanism 140 is disposed on the base 110 or the roller assembly 120. The drive mechanism 140 is used at least to drive the roller assembly 120 to rise or fall, so that the roller assembly 120 has a raised position and a lowered position.

[0093] The transmission structure 150 includes a first transmission part 151 and a second transmission part 152. Along the axial direction X of the roller mop 121, the transmission structure 150 is located at the end of the roller mop 121. One of the first transmission part 151 and the second transmission part 152 is disposed on the base 110, and the other is disposed on the roller cover 130. The first transmission part 151 and the second transmission part 152 cooperate in movement, allowing the roller cover 130 to flip downwards or upwards.

[0094] When the roller assembly 120 is in the raised position, the roller cover 130 is in the blocking position, and there is a gap between the roller mop 121 and the surface to be cleaned. A portion of the roller cover 130 is located within this gap between the roller mop 121 and the surface to be cleaned. When the roller assembly 120 is in the lowered position, the roller cover 130 is in the clearance position, and the roller cover 130 is detached from the gap between the roller mop 121 and the surface to be cleaned. The roller mop 121 then comes into contact with the surface to be cleaned.

[0095] It should be noted that, in this embodiment, the wet mopping area can refer to areas such as tiles or floors that can be mopped. In wet mopping mode, the cleaning device 100 can use a wet cleaning component (such as a roller mop) to mop the wet mopping area to clean the dirt. The non-wet mopping area can refer to areas that cannot be mopped, such as areas with carpets, which can be cleaned using a dry cleaning component (such as a center sweeper or side sweeper). In non-wet mopping mode, the cleaning device 100 performs single sweeping and vacuuming on the surface to be cleaned, without using the roller mop 121, and only uses the dry cleaning component to clean everyday dust, hair, and other debris.

[0096] It is easy to understand that the roller assembly 120 is equipped with a dispensing component 200 and spray nozzles. The dispensing component 200 can be used to distribute cleaning fluid to the spray nozzles, thereby providing liquid to the roller mop 121. The wet roller mop 121 can soften stubborn stains on the surface to be cleaned, making it suitable for wet mopping areas such as floors and tiles. However, for dry-mopping areas such as carpets, the liquid on the roller mop 121 coming into contact with the surface to be cleaned can cause the carpet fibers to become wet, leading to mold, odors, pile damage, or bacterial growth.

[0097] In this embodiment, when cleaning the dry sweeping area, the roller assembly 120 can be controlled to be in a raised position. The roller cover 130 can be positioned in a lowered position via the transmission structure 150. The roller cover 130 can prevent liquid from dripping from the roller mop 121 onto the dry sweeping area.

[0098] In some examples, when the roller assembly 120 is lifted, the cleaning device 100 can perform dry sweeping on the dry sweeping area through the side sweeping assembly and the center sweeping assembly to achieve cleaning of the dry sweeping area.

[0099] Therefore, the cleaning device 100 can seamlessly switch between wet mopping and dry sweeping modes. When cleaning hard floors or other areas requiring wet mopping, the cleaning device 100 can operate in wet mopping mode. When cleaning carpets or other areas requiring dry sweeping, the cleaning device 100 can automatically switch to dry sweeping mode to minimize the risk of wetting the carpet during cleaning. During this process, the cleaning device 100 can operate stably without stopping, which improves cleaning efficiency and enhances the user experience.

[0100] Specifically, when the cleaning device 100 switches from a wet mopping area to a dry sweeping area, the drive mechanism 140 can control the roller assembly 120 to lift. Since the roller cover 130 is rotatably connected to the roller assembly 120, the lifting of the roller assembly 120 can provide an upward force to the connection area between the roller cover 130 and the roller assembly 120, so that the first drive unit 151 and the second drive unit 152 move closer together. When the first drive unit 151 and the second drive unit 152 are connected, the continuous lifting of the connection area can create a relative force between the first drive unit 151 and the second drive unit 152, so that the base 110 can provide a downward flipping force to the roller cover 130, allowing the roller cover 130 to flip downward to a blocking position.

[0101] It should be noted that the connection area between the roller cover 130 and the roller assembly 120 can refer to the center of the roller cover 130.

[0102] In summary, the lifting of the roller assembly 120 provides the driving force for the downward flipping of the roller cover 130. Therefore, the drive mechanism 140 is mainly used to provide power for the lifting or lowering of the roller assembly 120. The movement of the roller assembly 120 can provide the driving force for the movement of the roller cover 130. Therefore, the cleaning equipment 100 can achieve the movement of the roller assembly 120 and the roller cover 130 without the need for an additional drive mechanism 140. This reduces the possibility of adding a drive mechanism 140 and corresponding mechanical structures, which would lead to structural complexity, occupy a large space in the cleaning equipment 100, and affect the miniaturization and lightweight design of the cleaning equipment 100.

[0103] It's easy to understand that the miniaturized design of the cleaning device 100 allows it to easily enter low, confined spaces such as under beds and sofas, reducing blind spots and improving the thoroughness and coverage of cleaning. Furthermore, it facilitates home storage. The lightweight design of the cleaning device 100 reduces the load on the drive mechanism and the rotating roller mop 121, lowering energy consumption and improving battery life.

[0104] In this embodiment, the roller assembly 120 and the roller cover 130 can be linked. Compared to controlling the movement of the roller assembly 120 and the roller cover 130 separately through two independent drive mechanisms 140, or controlling the movement of the roller assembly 120 and the roller cover 130 through two independent transmission systems, in this embodiment, the movement of the roller assembly 120 can directly cause the roller cover 130 to flip, which helps to improve the synchronization of the movement of the roller assembly 120 and the roller cover 130. It is less likely that problems such as delays in the independent drive mechanism 140 or response deviations in the independent transmission system will occur, resulting in the roller cover 130 not flipping downwards when the roller assembly 120 is raised, or the roller cover 130 not rising when the roller assembly 120 is lowered, thereby improving the reliability of cleaning operations.

[0105] In some examples, the first transmission part 151 may be disposed on the base 110, and the second transmission part 152 may be disposed on the roller cover 130. Alternatively, the first transmission part 151 may be disposed on the roller cover 130, and the second transmission part 152 may be disposed on the base 110. No limitation is made in the embodiments of this application.

[0106] In some examples, the drive mechanism 140 may include a power source 142. The power source 142 can provide power for the lifting of the roller assembly 120. The power source 142 may be, but is not limited to, an electric motor.

[0107] In some examples, the drive mechanism 140 may include a drive displacement assembly 141. The drive displacement assembly 141 is connected to the power source 142 and the roller assembly 120. When the power source 142 is started, it can drive the displacement assembly 141 to move. The drive displacement assembly 141 can at least drive the roller assembly 120 to move along the height direction Z of the base 110, so that the roller assembly 120 can switch between a raised position and a lowered position.

[0108] See also some of the possible implementation methods. Figure 9 and Figure 10 As shown, the roller cover 130 includes an arcuate cover 132. Along the circumference of the roller mop 121, the arcuate cover 132 covers at least a portion of the outer periphery of the roller mop 121, such that when the roller assembly 120 is in the raised position, a portion of the arcuate cover 132 is located at the distance between the roller mop 121 and the surface to be cleaned.

[0109] Along the axial direction X of the roller mop 121, the connecting portion 131 is located at the first end 132a of the arc-shaped cover 132. The connecting portion 131 and the arc-shaped cover 132 enclose an open space 130a that can accommodate part of the roller mop 121. The second end 132b of the arc-shaped cover 132 is slidably connected to the roller assembly 120 along the circumference of the roller mop 121.

[0110] The base 110 has an opening 110c that allows the roller assembly 120 to expand outward or contract inward along the axial direction X of the roller cloth 121. The first end 132a is the end of the arc-shaped cover 132 away from the opening 110c. The second end 132b is the end of the arc-shaped cover 132 close to the opening 110c.

[0111] In this embodiment, the roller cover 130 can be flipped downwards or upwards relative to the roller assembly 120. The movement trajectory of the roller cover 130 is along the circumference of the roller mop 121. By setting the arc-shaped cover 132 to be connected to the roller assembly 120 at both ends along the axial direction X of the roller mop 121, the connection between the roller cover 130 and the roller assembly 120 can avoid occupying the circumferential space of the roller mop 121. Therefore, the possibility of the connection structure between the roller cover 130 and the roller assembly 120 occupying the space in the height direction Z of the base 110, which would increase the height dimension of the cleaning equipment 100 and make it difficult to enter low spaces, can be reduced.

[0112] Furthermore, the connection position between the roller cover 130 and the roller assembly 120 can be far away from the movement space of the roller cover 130, which helps to reduce the possibility of interference or collision between the connection structure between the roller cover 130 and the roller assembly 120 and the roller cover 130 during the movement of the roller cover 130.

[0113] In some examples, the transmission structure 150 may be located at the first end 132a.

[0114] In some examples, the roller cover 130 is provided with a handle. The handle is located on the curved cover 132. Along the axial direction of the roller cloth 121, the handle is located near the end of the curved cover 132.

[0115] In this embodiment of the application, the handle position can be used to facilitate the user to hold the roller cover 130 when disassembling the roller cover 130.

[0116] In some examples, the roller cover 130 can be removed from the roller support 122, and the handle provides the user with a force-free and convenient point of application. Therefore, the user can easily remove the roller cover 130 by operating the handle to clean up hair and other thread-like, solid and liquid dirt and other debris entangled on the roller cover 130.

[0117] In particular, when the roller cover 130 is controlled independently, that is, when the roller cover 130 and the roller assembly 120 are not linked, the user can flip the roller cover 130 by using the handle to clean the debris between the roller cover 130 and the receiving cavity and the roller mop 121. This can reduce the possibility of debris getting stuck between the roller cover 130 and the roller bracket and the roller mop 121, affecting the normal operation of the cleaning equipment.

[0118] In some examples, the handle can be a groove structure or a raised handle structure, but this application embodiment does not limit it.

[0119] The connecting part 131 and the arc-shaped cover 132 can be an integral structure. Alternatively, the connecting part 131 and the arc-shaped cover 132 can be detachably connected by means of snap-fit, screw connection, or other methods.

[0120] When the connecting part 131 is detachably connected to the arc-shaped cover 132, it is convenient to clean the roller cover 130. When the connecting part 131 and the arc-shaped cover 132 are an integral structure, the roller cover 130 can have better structural strength.

[0121] In some examples, when the connecting part 131 engages with the curved cover 132, a snap fastener may be provided on the roller cover 130. For example, a snap fastener may be provided on the connecting part 131. The snap fastener can be used to lock or unlock the connecting part 131 and the curved cover 132 by pressing or sliding.

[0122] For example, when the latch is pressed, it can unlock the connecting portion 131 and the arc-shaped cover 132. At this time, the arc-shaped cover 132 can be directly removed from the connecting portion 131 for cleaning the roller cover 130. Alternatively, after the latch unlocks the connecting portion 131 and the arc-shaped cover 132, the arc-shaped cover 132 can be rotated about the axial direction of the roller cover 130. When the roller cover 130 is in the clearance position, more of the arc-shaped cover 132 is exposed outside the receiving cavity 122a, making disassembly easier.

[0123] Users can operate the handle to remove the arc-shaped cover 132.

[0124] In some possible implementations, along the height direction Z of the base 110, the roller assembly 120 has a sub-lifted position located anywhere between a lowered position and a raised position. Along the flipping path of the roller cover 130, the roller cover 130 has a sub-flipped position located anywhere between a clearance position and a blocking position. When the roller assembly 120 is in the sub-lifted position, the roller cover 130 is in either the clearance position or the sub-flipped position.

[0125] When the roller assembly 120 is in the sub-lifted position, the roller cover 130 can remain in the avoidance position, or the roller cover 130 can be in the sub-flipped position. Therefore, during the obstacle-crossing process of the cleaning equipment 100, when the roller assembly 120 is passively lifted to the sub-lifted position, the roller cover 130 is less likely to continue to flip downwards and reach the blocking position, thereby reducing the possibility of the roller cover 130 colliding with the obstacle while in the blocking position. The obstacles here include traversable obstacles with a height relative to the ground, such as carpets, thresholds, steps, and electronic scales.

[0126] In some feasible ways, the height of the roller cover 130 relative to the surface to be cleaned when the roller cover 130 is in the sub-flipped position along the height direction Z of the base 110 is greater than or equal to the height of the roller assembly 120 relative to the surface to be cleaned when the roller assembly 120 is in the sub-lifted position.

[0127] In this embodiment, when the roller assembly 120 is passively raised to the sub-raised position, the roller cover 130 is located in the avoidance position or the sub-flipped position. Since the height of the bottom of the roller cover 130 relative to the surface to be cleaned is greater than or equal to the height of the bottom of the roller assembly 120 relative to the surface to be cleaned, the bottom of the roller cover 130 is less likely to collide with obstacles. This helps reduce friction between the roller cover 130 and obstacles, reducing the possibility of increased operating resistance of the cleaning equipment 100 and affecting its endurance. Furthermore, it also reduces the possibility of abnormal noise or damage to the roller cover 130 caused by friction between the roller cover 130 and obstacles.

[0128] For example, when the cleaning device 100 encounters an obstacle, the roller assembly 120 is passively raised to the sub-raised position, and the roller cover 130 can remain stationary or flip downwards at a small angle to reach the sub-flipped position. After the roller assembly 120 overcomes the obstacle, the roller cover 130 can quickly flip from the sub-flipped position to the blocking position to prevent liquid on the roller mop 121 from dripping onto the surface to be cleaned.

[0129] In some examples, the roller cover 130 can remain in the sub-flipped position under the action of a power source such as a motor and a transmission structure 150, so that the roller cover 130 can be maintained in the sub-flipped position. Alternatively, the roller cover 130 can continue to move upward or downward to reach the raised or lowered position after passing the sub-flipped position under the action of the transmission structure 150.

[0130] In some examples, along the axial direction X of the roller mop 121, one end of the roller cover 130 can be used to connect to the roller assembly 120 so that the roller cover 130 can be flipped up or down relative to the roller assembly 120. The other end of the roller cover 130 can be used to slidably connect to the roller assembly 120 so that the roller cover 130 can slide circumferentially along the roller mop 121.

[0131] See also some of the possible implementation methods. Figure 9 and Figure 11 As shown, the first transmission part 151 protrudes from the surface of the connecting part 131 facing away from the arc-shaped cover 132, and the second transmission part 152 protrudes from the surface of the base 110 facing the receiving cavity 110a. The first transmission part 151 is provided with a transmission arc surface 1511 for cooperating with the base 110.

[0132] In this embodiment, when the roller assembly 120 is raised or lowered, the first transmission part 151 and the second transmission part 152 are connected and act opposite each other, so that the roller cover 130 can be flipped up or down. The direct connection between the first transmission part 151 and the second transmission part 152 drives the roller cover 130 to flip. Therefore, the transmission process of the first transmission part 151 and the second transmission part 152 is simple, and the force loss during the transmission process is small, which helps to reduce energy loss and improve the endurance of the cleaning equipment 100.

[0133] Furthermore, the first transmission unit 151 and the second transmission unit 152 have a compact structure. The coordinated movement of the first transmission unit 151 and the second transmission unit 152 only occupies a small portion of the space in the axial direction X of the roller mop 121, and does not occupy the space in the height direction Z of the base 110 or the travel direction Y of the cleaning device 100, which is conducive to realizing the miniaturized design of the cleaning device 100.

[0134] See in some examples Figure 4 , Figure 6 , Figure 7 and Figure 8 As shown, when the surface of the first transmission part 151 used to cooperate with the second transmission part 152 is an arc surface, the surface of the second transmission part 152 used to cooperate with the first transmission part 151 can be a plane. The plane can provide a force pointing towards the arc surface, so that when the first transmission part 151 and the second transmission part 152 are connected, the first transmission part 151 can receive all the force exerted by the second transmission part 152 on the first transmission part 151, which helps to reduce force loss.

[0135] In some examples, the first transmission part 151 can be close to the center of the roller cover 130 so that during the movement of the first transmission part 151 and the second transmission part 152, the lever arm formed between the first transmission part 151 and the center of the roller cover 130 is short. Therefore, the roller cover 130 can be rotated at a large angle with a small driving force, achieving a labor-saving effect, which can help reduce energy consumption and improve the endurance of the cleaning equipment 100.

[0136] In some examples, the first transmission part 151 and the roller cover 130 can be an integral structure. Alternatively, the first transmission part 151 can be fixed or detachable from the roller cover 130 by means of plugging, snapping, bonding, fastening, etc. No limitation is made in the embodiments of this application.

[0137] In some examples, the second transmission part 152 and the base 110 can be an integral structure. Alternatively, the first transmission part 151 can be fixed or detachable from the base 110 by means of plugging, snapping, bonding, fastener connection, etc. No limitation is made in the embodiments of this application.

[0138] See also some of the possible implementation methods. Figure 6 and Figure 12 As shown, the transmission arc surface 1511 includes a first arc surface 151a and a second arc surface 151b. The first arc surface 151a and the second arc surface 151b are used to cooperate with the second transmission part 152 in sequence when the roller assembly 120 is lifted. The radius of curvature of the first arc surface 151a is greater than or equal to the radius of curvature of the second arc surface 151b.

[0139] In this embodiment of the application, by setting the curvature radius of the first arc surface 151a and the second arc surface 151b, the rotation angle of the roller cover 130 can be controlled when the roller assembly 120 corresponds to different lifting strokes, so as to adapt to different application scenarios.

[0140] When the radius of curvature of the first arc surface 151a is equal to that of the second arc surface 151b, the radius of curvature of the transmission arc surface 1511 is the same. During the movement of the transmission arc surface 1511 in conjunction with the second transmission part 152, the rotation angle of the roller cover 130 during the movement of the first arc surface 151a in conjunction with the second transmission part 152 is the same as the rotation angle of the roller cover 130 during the movement of the second arc surface 151b in conjunction with the second transmission part 152. The roller cover 130 can rotate downwards at a uniform speed.

[0141] When the radius of curvature of the first arc surface 151a is greater than the radius of curvature of the second arc surface 151b, when the roller assembly 120 is passively lifted to the sub-lifted position, the first arc surface 151a can first connect with the second transmission part 152, so that the roller cover 130 can first flip downward by a small angle to reach the sub-flipped position due to the larger radius of curvature of the first arc surface 151a. The roller cover 130 is less likely to collide with obstacles on the surface to be cleaned. When dry sweeping the area is required after overcoming obstacles, the smaller radius of curvature of the second arc surface 151b can cause the roller cover 130 to flip by a relatively large angle and reach the obstruction position.

[0142] With this configuration, when the cleaning equipment 100 encounters an obstacle, during the passive lifting process of the roller assembly 120, the roller cover 130 can first tilt downwards at a small angle to a sub-tilted position, without reaching the obstruction position. Therefore, the roller cover 130 is less likely to collide with the obstacle upon reaching the obstruction position, which helps reduce friction between the roller cover 130 and the obstacle, potentially increasing the operating resistance of the cleaning equipment 100 and affecting its endurance. Furthermore, it also reduces the possibility of abnormal noise or damage to the roller cover 130 caused by friction between the roller cover 130 and the obstacle.

[0143] See also some of the possible implementation methods. Figure 5 and Figure 8As shown, when the roller assembly 120 is in the descending position, the first transmission part 151 and the second transmission part 152 have a first interval m along the height direction Z of the base 110.

[0144] In this embodiment, by setting a first distance m between the first transmission part 151 and the second transmission part 152, when the roller assembly 120 is passively lifted to the sub-lifted position due to an obstacle, the first transmission part 151 and the second transmission part 152 do not contact each other, so that the roller cover 130 can be kept in the avoidance position. Therefore, when the roller assembly 120 is passively lifted, the roller cover 130 does not need to flip downwards, so as to more effectively reduce the possibility of collision between the roller cover 130 and the obstacle.

[0145] Furthermore, the first interval m can also serve as the engagement / disengagement stroke between the first transmission unit 151 and the second transmission unit 152. During the lifting process of the roller assembly 120, the first interval m can improve the reliability of the engagement between the first transmission unit 151 and the second transmission unit 152, allowing the first arc surface 151a and the second arc surface 151b to sequentially engage with the second transmission unit 152. Additionally, it can reduce the occurrence of hard contact between the first transmission unit 151 and the second transmission unit 152, thus reducing engagement impact.

[0146] See also some of the possible implementation methods. Figure 13 and Figure 14 As shown, the roller assembly 120 includes a roller support 122. The roller support 122 is disposed on the base 110. The roller support 122 has a receiving cavity 122a for accommodating the roller mop 121. The roller mop 121 is movably connected to the base 110 via the roller support 122, and an elastic member 160 is provided between the roller cover 130 and the roller support 122. The elastic member 160 is used to provide support for the roller cover 130 when it is in the avoidance position, and to provide a driving force for the roller cover 130 to switch to the avoidance position when it is in the blocking position.

[0147] In this embodiment, the elastic member 160 can provide a force to reset the roller cover 130 to the avoidance position, so that when the roller assembly 120 is in the lowered position, the elastic member 160 can be used to provide a supporting force for the roller cover 130. Furthermore, when the roller assembly 120 is raised, the elastic member 160 can be used to provide a driving force to reset the roller cover 130 to the avoidance position.

[0148] Specifically, when the roller assembly 120 is in the descending position, the elastic element 160 can be used to keep the roller cover 130 in the avoidance position. The elastic element 160 can support the roller cover 130. When the roller assembly 120 is raised so that the first transmission part 151 and the second transmission part 152 cooperate to move, the relative force between the first transmission part 151 and the second transmission part 152 can make the roller cover 130 overcome the elastic force of the elastic element 160, and the roller cover 130 can flip downward to the blocking position. During this process, the elastic element 160 can accumulate elastic potential energy. When the roller assembly 120 descends so that the relative force between the first transmission part 151 and the second transmission part 152 disappears, the elastic element 160 can release the elastic potential energy. The elastic element 160 can drive the roller cover 130 to flip upward to reset, and the elastic element 160 can switch to the avoidance position.

[0149] Therefore, when the cleaning device 100 switches from a dry sweeping area to a wet mopping area, the roller assembly 120 can be controlled to descend. There is no relative force between the first drive unit 151 and the second drive unit 152. The elastic member 160 allows the roller cover 130 to switch and remain in a clearance position. The position of the roller cover 130 can easily prevent the roller assembly 120 from contacting the wet mopping area, thus ensuring proper cleaning of the wet mopping area.

[0150] In some examples, the elastic element 160 may be, but is not limited to, a part formed of a flexible material, or the elastic element 160 may be a spring. No limitation is made in the embodiments of this application.

[0151] See also some of the possible implementation methods. Figure 14 As shown, one end of the elastic element 160 is connected to the roller support 122, and the other end of the elastic element 160 is connected to the roller cover 130. When the roller cover 130 is in the clearance position, the elastic element 160 has a pre-tightening angle. The pre-tightening angle is greater than or equal to 50° and less than or equal to 90°.

[0152] In this embodiment, the elastic element 160 can be a torsion spring. By setting the preload angle of the elastic element 160 to be greater than or equal to 50° and less than or equal to 90°, the roller cover 130 can be reset to the avoidance position and held in the avoidance position.

[0153] When the pre-tension angle is less than 50°, the supporting force of the elastic element 160 on the roller cover 130 is insufficient, making it difficult for the roller cover 130 to remain in the avoidance position. When the pre-tension angle is greater than 90°, the force provided by the elastic element 160 to the roller cover 130 for resetting towards the avoidance position is too large. When the roller cover 130 switches to the blocking position, it needs to overcome a large elastic force, which increases the load on the power source 142. The power source 142 is prone to overload, overheating, and even failure, and it can also affect the endurance of the cleaning equipment 100. Therefore, by setting the pre-tension angle of the elastic element 160 to be greater than or equal to 50° and less than or equal to 90°, the above technical problems can be effectively solved.

[0154] For example, the preload angle of the elastic element 160 may be, but is not limited to, 50°, 60°, 70°, 80°, etc.

[0155] See in some examples Figure 10 As shown, a fixing post 136 is provided on the side of the connecting portion 131 of the roller cover 130 facing the open space 130a. An elastic member 160 can be sleeved on the fixing post 136. The first arm 161 of the elastic member 160 can be connected to the roller cover 130. During the rotation of the roller cover 130, the first arm 161 of the elastic member 160 can rotate synchronously. The second arm 162 of the elastic member 160 can be connected to the roller support 122. The second arm 162 of the elastic member 160 can remain relatively fixed.

[0156] For example, see Figure 12 As shown, the connecting part 131 may be provided with a mounting hole 131a for connection with the first arm 161. A portion of the first arm 161 may be located within the mounting hole 131a. Along the axial direction X of the roller cloth 121, the end of the roller bracket 122, facing away from the receiving cavity 122a, is provided with a mounting groove 122b for accommodating the second arm 162. The second arm 162 may be fixed to the mounting groove 122b.

[0157] Specifically, when the roller cover 130 is in the clearance position, the preload angle of the elastic element 160 is 80°. When the roller cover 130 is in the reversal angle of 90°, the pressing angle of the elastic element 160 is 170° when the roller cover 130 is in the blocking position.

[0158] See also some of the possible implementation methods. Figure 4 and Figure 7As shown, the roller cover 130 is provided with a reset member 133. The base 110 is provided with a third transmission part 111. When the roller cover 130 is in the avoidance position, there is a second gap n between the reset member 133 and the third transmission part 111 along the height direction Z of the base 110. When the roller cover 130 is stuck and cannot be reset to the avoidance position, the roller assembly 120 descends, and the reset member 133 and the third transmission part 111 cooperate to move, so that the third transmission part 111 provides driving force for the roller cover 130 to switch to the avoidance position.

[0159] In this embodiment, when debris gets stuck between the roller mop 121 and the roller cover 130, and cannot be reset to the avoidance position due to the elasticity of the elastic member 160, the descent of the roller assembly 120 can cause the roller cover 130 to descend synchronously, allowing the reset member 133 to move closer to the third transmission part 111. When the reset member 133 is connected to the third transmission part 111, there is a relative force between the reset member 133 and the third transmission part 111. The third transmission part 111 can drive the reset member 133 upward to apply an upward flipping force to the roller cover 130.

[0160] Therefore, under this force, the roller cover 130 can be directly reset to the avoidance position. Alternatively, the debris stuck between the roller assembly 120 and the roller cover 130 can be carried out under this force, and the roller assembly 120 can be reset to the avoidance position under the action of the elastic member 160.

[0161] In some examples, the reset member 133 may protrude from the surface of the connecting portion 131 facing away from the arc-shaped cover 132. The third transmission portion 111 may protrude from the surface of the base 110 facing the receiving cavity 110a.

[0162] For example, the reset member 133 may be, but is not limited to, a columnar structure. The surface of the third transmission part 111 that mates with the reset member 133 may be planar.

[0163] In some feasible implementations, the roller cover 130 can be slidably connected to the roller assembly 120 via a guide structure 170. The guide structure 170 can constrain the movement trajectory of the roller cover 130 during the tumbling process, causing the roller cover 130 to move circumferentially along the roller fabric 121.

[0164] For example, the guide structure 170 may include a guide portion 134 and a guide groove 170a. One of the guide portion 134 and the guide groove 170a is disposed on the roller cover 130, and the other may be disposed on the roller support 122.

[0165] See also some of the possible implementation methods. Figure 15 and Figure 16As shown, along the axial direction X of the roller mop 121, a guide portion 134 is disposed at one end of the arc-shaped cover 132 away from the connecting portion 131, and a guide groove 170a is disposed on the roller support 122. The guide portion 134 and the guide groove 170a cooperate to move so that the roller cover 130 switches between an avoidance position and an obstruction position along the circumference of the roller mop 121.

[0166] In this embodiment, the roller cover 130 can be rotated circumferentially along the roller mop 121 by the cooperative movement of the guide portion 134 and the guide groove 170a. At least a portion of the guide portion 134 is located in the guide groove 170a. Therefore, the guide groove 170a can provide the guide portion 134 with radial support along the roller mop 121, so that the end of the roller cover 130 away from the connecting portion 131 is less likely to sag or deform due to gravity.

[0167] See also some of the possible implementation methods. Figure 16 As shown, the cross-sectional shape of the guide groove 170a and / or guide portion 134 does not match the circumferential movement trajectory of the roller cover 130 along the roller cloth 121, and the cross-section is perpendicular to the axial direction X of the roller cloth 121.

[0168] In this embodiment, when the cross-sectional shapes of the guide groove 170a and the guide portion 134 match and match the movement trajectory of the roller cover 130, the gap between the guide portion 134 and the inner wall of the guide groove 170a is uniform along the radial direction of the roller cloth 121, and the contact surface between the guide portion 134 and the guide groove 170a is under stable force, so that the guide portion 134 can slide smoothly in the guide groove 170a.

[0169] When the cross-sectional shape of at least one of the guide groove 170a and the guide part 134 does not match the movement trajectory of the roller cloth 121, taking the mismatch between the guide groove 170a and the movement trajectory of the roller cloth 121 as an example, the guide groove 170a can be an irregularly shaped groove. The guide groove 170a can provide guidance and limiting for the guide part 134, thereby reducing processing difficulty and costs while ensuring smooth sliding of the guide part 134 within the guide groove 170a. Furthermore, it simplifies the structure of the guide groove 170a, reducing the weight of the roller support 122 and the overall machine weight.

[0170] In some examples, the guide groove 170a may have one or more regular or irregular curved surfaces. These curved surfaces can provide guidance and limiting for the guide portion 134, allowing the roller cover 130 to slide circumferentially along the roller conveyor 121.

[0171] See also some of the possible implementation methods. Figure 17 and Figure 18As shown, the cleaning device 100 also includes a limiting structure. The limiting structure is disposed on the roller cover 130 and / or the roller support 122. The limiting structure is used to constrain the rotation angle of the roller cover 130.

[0172] In this embodiment, the limiting structure can be used to allow the roller cover 130 to move between a clearance position and a blocking position. In other words, the clearance position and the blocking position are two extreme positions for the roller cover 130 to flip. When the roller cover 130 flips upward to the clearance position, it will not continue to flip upward and pass the clearance position. When the roller cover 130 flips downward to the blocking position, it will not continue to flip downward and pass the blocking position.

[0173] In some examples, the limiting structure may include a first limiting member 181 and a second limiting member 182. Along the axial direction X of the roller mop 121, the first limiting member 181 and the second limiting member 182 may be located at opposite ends of the axial direction X of the roller mop 121.

[0174] The first limiting member 181 can be used to make the roller cover 130 flip downwards to the limit position of the blocking position. The second limiting member 182 can be used to make the roller cover 130 flip upwards to the limit position of the avoidance position.

[0175] In some examples, the first limiting member 181 may be located on one side of the guide structure 170. The first limiting member 181 may include a first limiting portion 1811 and a second limiting portion 1812. The first limiting portion 1811 and the second limiting portion 1812 may be located on the roller cover 130 and the roller support 122, respectively. During the circumferential sliding of the roller mop 121, when the first limiting portion 1811 and the second limiting portion 1812 are connected, the first limiting portion 1811 and the second limiting portion 1812 interact with each other, preventing the roller cover 130 from continuing to rotate when it is in the blocking position.

[0176] For example, the first limiting part 1811 may protrude from the inner surface of the roller cover 130. The second limiting part 1812 may protrude from the outer surface of the roller support 122 facing away from the receiving cavity 122a.

[0177] In some examples, the second limiting member 182 may be located on one side of the transmission structure 150. The second limiting member 182 may include a third limiting portion 1821 and a fourth limiting portion 1822. The third limiting portion 1821 and the fourth limiting portion 1822 may be located on the roller cover 130 and the roller support 122, respectively. During the circumferential sliding of the roller mop 121, when the third limiting portion 1821 and the fourth limiting portion 1822 are connected, the third limiting portion 1821 and the fourth limiting portion 1822 interact with each other, so that when the roller cover 130 is in the avoidance position, it will not continue to flip.

[0178] For example, along the circumference of the roller mop 121, the third limiting portion 1821 may be located at the end of the connecting portion 131 facing the roller bracket 122. The fourth limiting portion 1822 is located on the roller bracket 122. Along the circumference of the roller mop 121, the third limiting portion 1821 and the fourth limiting portion 1822 are disposed opposite to each other.

[0179] See also some of the possible implementation methods. Figure 10 As shown, the arc-shaped cover 132 is provided with a reinforcing part 135. The reinforcing part 135 is connected to the guide part 134. The thickness of the reinforcing part 135 is greater than the thickness of the arc-shaped cover 132, and the thickness of the guide part 134 is less than the thickness of the arc-shaped cover 132.

[0180] In this embodiment, the guide portion 134 moves in conjunction with the guide groove 170a. By setting the thickness of the guide portion 134 to be relatively small, the width of the guide groove 170a is correspondingly smaller, thus the guide groove 170a does not easily occupy a large space on the roller support 122. Furthermore, the smaller thickness of the guide portion 134 also facilitates the coordinated movement of the guide portion 134 and the guide groove 170a, which helps to improve the smoothness of the coordinated movement between the guide portion 134 and the guide groove 170a.

[0181] Since the guide part 134 moves in conjunction with the guide groove 170a, the reinforcing part 135 is connected to the guide part 134, and the thickness of the reinforcing part 135 is relatively large, which can improve the structural strength of the guide part 134 area and help improve the stability and reliability of the fit between the guide part 134 and the guide groove 170a.

[0182] See also some of the possible implementation methods. Figure 18 As shown, the roller assembly 120 also includes a scraping structure 190. The scraping structure 190 is disposed on the roller support 122. The scraping structure 190 is partially located in the receiving cavity 122a. The scraping structure 190 includes a scraper 191 that interferes with the roller mop 121. When the roller cover 130 is in the clearance position along the travel direction Y of the cleaning device 100, the roller cover 130 and the scraping structure 190 are located on both sides of the center of the roller mop 121.

[0183] During the rotation of the roller mop 121, the scraper 191 makes interference contact with the roller mop 121, which can scrape off the dirt on the roller mop 121, thereby reducing the possibility that the roller mop 121 is too dirty and the surface to be cleaned will become dirtier as it is mopped.

[0184] The scraping structure 190 may also be equipped with a sludge collection trough 192. The sludge collection trough 192 may be located close to the scraper 191. Therefore, the dirt scraped off by the roller mop 121 by the scraper 191 can be collected in the sludge collection trough 192. The dirt in the sludge collection trough 192 can be driven by a water pump, blower, or other structures to enter the wastewater tank 300 through a suction pipe.

[0185] In this embodiment, when the roller cover 130 is in the avoidance position, the roller cover 130 and the scraping structure 190 are located on both sides of the center of the roller mop 121, respectively. Therefore, the flipping action of the roller cover 130 is less likely to collide with the scraping structure 190.

[0186] In some examples, the roller cover 130 can be folded up within the front space of the roller mop 121. The scraping structure 190 can be located in the rear space of the roller mop 121, close to the wastewater tank 300. Therefore, the sludge collection trough 192 can be close to the wastewater tank 300, thereby reducing the suction path and making the cleaning device 100 more compact. Furthermore, a shorter suction path helps reduce suction power loss and improves the efficiency of wastewater discharge from the sludge collection trough 192. It also prevents solid dirt such as hair from clogging the suction pipe.

[0187] In some examples, the sludge collection tank 192 and the scraper 191 can be an integral structure. Alternatively, the sludge collection tank 192 and the scraper 191 can be detachably connected. This application does not impose limitations on the embodiments.

[0188] See also some of the possible implementation methods. Figure 18 As shown, the roller assembly 120 also includes a liquid distribution assembly 200. The liquid distribution assembly 200 includes a water distribution channel 210 and a cover plate 220. The water distribution channel 210 is disposed on the roller support 122. The cover plate 220 covers the water distribution channel 210. Along the radial direction of the roller fabric 121, a roller cover 130 is located outside the cover plate 220, and there is a movable gap between the roller cover 130 and the cover plate 220.

[0189] In this embodiment, the roller cover 130 is located outside the liquid dispensing assembly 200 and slides circumferentially along the roller mop 121. A movable gap can be left between the roller cover 130 and the cover plate 220 for the roller cover 130 to flip, thus making the structure of the roller cover 130 and the roller assembly 120 more compact in the radial direction of the roller mop 121.

[0190] In some examples, the water distribution channel 210 and the cover plate 220 can be an integral structure to provide a better sealing effect for the liquid distribution assembly 200. Alternatively, the water distribution channel 210 and the cover plate 220 can be detachably connected to facilitate cleaning of the water distribution channel 210 and reduce the possibility of blockage.

[0191] In some examples, the water distribution channel 210 and the roller support 122 can be an integral structure.

[0192] In some possible implementations, the drive mechanism 140 includes a drive displacement assembly 141, which is at least used to drive the roller assembly 120 to expand or contract along the axial direction X of the roller fabric 121 to have an expanding position and a contracting position.

[0193] When the roller assembly 120 is in the outward-expanding position, at least a portion of the roller assembly 120 extends out of the base 110, and a portion of the roller assembly 120 is located within the receiving cavity 110a of the base 110. Another portion of the roller assembly 120 extends beyond the base 110. Along the axial direction X of the roller assembly 120, the portion of the roller assembly 120 outside the base 110 is larger than the portion of the roller assembly 120 outside the base 110 when it is in the inward-retracting position. The roller cover 130 expands or retracts synchronously with the roller assembly 120.

[0194] In this embodiment, when the roller assembly 120 is in the outwardly extended position, a portion of the roller assembly 120 can extend out of the base 110 through the lateral opening 110c to clean hard-to-reach areas such as walls. When the roller assembly 120 is in the inwardly retracted position, a small portion or all of the roller assembly 120 can be located within the receiving cavity 110a of the base 110, allowing the cleaning device 100 to clean narrow spaces.

[0195] Therefore, the roller assembly 120 of this application embodiment may have at least an inward lifting position, an inward lowering position, and an outward lowering position to adapt to different cleaning modes.

[0196] In the cleaning task where the roller assembly 120 expands or retracts, the roller cover 130 can expand or retract simultaneously. Therefore, when the cleaning device 100 moves from the wet mopping area to the dry sweeping area, with the roller assembly 120 in the raised position and the roller cover in the blocking position, along the axial direction X of the roller mop 121, part of the roller cover 130 can completely correspond to the underside of the roller mop 121, and the wet roller mop 121 will not come into contact with the carpet.

[0197] In some examples, the drive displacement component 141 can also be used to drive the roller assembly 120 to rise and fall, switching between a raised position and a lowered position. And / or, the drive displacement component 141 can be used to drive the roller assembly 120 to retract or expand, switching between a retracted position and an expanded position. The rising, falling, or expanding of the roller assembly 120 can share a common set of power sources 142, or the rising, falling, or expanding of the roller assembly 120 can be controlled independently. This is not limited in the embodiments of this application.

[0198] This application also provides a cleaning device 100. The cleaning device 100 may include the laser device from any of the above embodiments. The beneficial effects can be found in the relevant descriptions of the above embodiments, and will not be repeated here.

[0199] In the above detailed description, reference has been made to the accompanying drawings, which illustrate specific aspects of this disclosure by way of illustration. In this regard, terms indicating direction or positional relationship, such as “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential,” are used with reference to the orientation of the described figures. Since components of the described device can be positioned in multiple different orientations, directional terms are used for illustrative purposes and not for limitation. It should be understood that other aspects can be utilized and structural or logical changes can be made without departing from the concept of this disclosure. Therefore, the following detailed description should not be considered limiting.

[0200] It should be understood that, unless otherwise expressly specified and limited, the terms "joining," "attaching," "installing," "connecting," "linking," "fixing," etc., used in the embodiments of this disclosure should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms herein based on the specific circumstances.

[0201] Furthermore, the term "above" as used herein with respect to components, elements, or material layers formed or located "above" a surface may be used to indicate that the component, element, or material layer is positioned "indirectly" on the surface such that one or more additional components, elements, or layers are arranged between the surface and the component, element, or material layer. However, the term "above" as used with respect to components, elements, or material layers formed or located "above" a surface may also optionally have a specific meaning: that the component, element, or material layer is positioned "directly" on the surface, for example, in direct contact with the surface.

[0202] Although terms such as “first,” “second,” and “third” may be used herein to describe various components, parts, regions, layers, or sections, these components, parts, regions, layers, or sections are not limited to these terms. Rather, these terms are used only to distinguish one component, part, region, layer, or section from another. Therefore, without departing from the teachings of the examples described herein, the first component, part, region, layer, or section mentioned in the examples may also be referred to as the second component, part, region, layer, or section. Furthermore, the terms “first” and “second” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as “first” or “second” may explicitly or implicitly include at least one of that feature. In the description herein, “a plurality” means at least two, such as two, three, etc., unless otherwise explicitly specified.

Claims

1. A cleaning device (100), characterized in that, include: A base (110) is provided with a receiving cavity (110a) on the side of the base (110) facing the surface to be cleaned, and a cleaning port (110b) is provided on the side of the receiving cavity (110a) facing the surface to be cleaned. A roller assembly (120) is movably connected to the base (110), at least a portion of the roller assembly (120) is receptacle (110a), the roller assembly (120) includes a roller mop (121), the roller mop (121) is rotatably disposed, and the axial direction (X) of the roller mop (121) is parallel to the plane of the base (110); A roller cover (130) covers at least a portion of the outer periphery of the roller mop (121), and the roller cover (130) is rotatably connected to the roller assembly (120) via a connecting part (131) so that the roller cover (130) can be flipped down or up to have a blocking position and a clearance position. A drive mechanism (140) is disposed on the base (110) or the roller assembly (120), the drive mechanism (140) being at least used to drive the roller assembly (120) to lift or lower, so that the roller assembly (120) has a lifted position and a lowered position; The transmission structure (150) includes a first transmission part (151) and a second transmission part (152). Along the axial direction (X) of the roller mop (121), the transmission structure (150) is located at the end of the roller mop (121). One of the first transmission part (151) and the second transmission part (152) is disposed on the base (110), and the other is disposed on the roller cover (130). The first transmission part (151) and the second transmission part (152) cooperate to move, and the roller cover (130) can be flipped downward or upward. When the roller assembly (120) is in the raised position, the roller cover (130) is in the blocking position, the roller mop (121) has a gap with the surface to be cleaned, and a portion of the roller cover (130) is located at the gap between the roller mop (121) and the surface to be cleaned. When the roller assembly (120) is in the lowered position, the roller cover (130) is in the avoidance position, the roller cover (130) is detached from the roller mop (121) and the surface to be cleaned, and the roller mop (121) is in contact with the surface to be cleaned.

2. The cleaning equipment (100) according to claim 1, characterized in that, The roller cover (130) includes an arcuate cover (132) that covers at least a portion of the outer periphery of the roller mop (121) along the circumference of the roller mop (121) so that when the roller assembly (120) is in the raised position, a portion of the arcuate cover (132) is located at the distance between the roller mop (121) and the surface to be cleaned. Along the axial direction (X) of the roller mop (121), the connecting part (131) is located at the first end (132a) of the arc-shaped cover (132), and the connecting part (131) and the arc-shaped cover (132) enclose an open space (130a) that can accommodate part of the roller mop (121); the second end (132b) of the arc-shaped cover (132) is slidably connected to the roller assembly (120) along the circumference of the roller mop (121). The base (110) is provided with an opening (110c) that allows the roller assembly (120) to expand outward or contract inward along the axial direction (X) of the roller mop (121). The first end (132a) is the end of the arc-shaped cover (132) away from the opening (110c), and the second end (132b) is the end of the arc-shaped cover (132) close to the opening (110c).

3. The cleaning equipment (100) according to claim 2, characterized in that, The first transmission part (151) protrudes from the surface of the connecting part (131) facing away from the arc-shaped cover (132), and the second transmission part (152) protrudes from the surface of the base (110) facing the receiving cavity (110a). The first transmission part (151) is provided with a transmission arc surface (1511) for cooperating with the base (110) to move.

4. The cleaning equipment (100) according to claim 3, characterized in that, The transmission arc surface (1511) includes a first arc surface (151a) and a second arc surface (151b). The first arc surface (151a) and the second arc surface (151b) are used to cooperate with the second transmission part (152) in sequence when the roller assembly (120) is lifted. The radius of curvature of the first arc surface (151a) is greater than or equal to the radius of curvature of the second arc surface (151b).

5. The cleaning equipment (100) according to claim 3, characterized in that, When the roller assembly (120) is in the descending position, the first transmission part (151) and the second transmission part (152) have a first interval along the height direction of the base (110).

6. The cleaning equipment (100) according to claim 2, characterized in that, The roller assembly (120) includes a roller bracket (122), which has a receiving cavity (122a) for accommodating the roller mop (121), and the roller mop (121) is movably connected to the base (110) through the roller bracket (122). An elastic element (160) is provided between the roller cover (130) and the roller support (122). The elastic element (160) is used to provide support for the roller cover (130) when the roller cover (130) is in the avoidance position, and to provide a driving force for the roller cover (130) to switch to the avoidance position when the roller cover (130) is in the blocking position.

7. The cleaning equipment (100) according to claim 6, characterized in that, One end of the elastic element (160) is connected to the roller bracket (122), and the other end of the elastic element (160) is connected to the roller cover (130); When the roller cover (130) is in the avoidance position, the elastic element (160) has a pre-tightening angle greater than or equal to 50° and less than or equal to 90°.

8. The cleaning device (100) according to any one of claims 1-7, characterized in that, The roller cover (130) is provided with a reset member (133), and the base (110) is provided with a third transmission part (111). When the roller cover (130) is in the clearance position, there is a second gap between the reset member (133) and the third transmission part (111) along the height direction of the base (110); When the roller cover (130) is stuck and cannot be reset to the avoidance position, the roller assembly (120) descends, and the reset member (133) moves in conjunction with the third transmission part (111) so that the third transmission part (111) provides driving force for the roller cover (130) to switch to the avoidance position.

9. The cleaning equipment (100) according to claim 6, characterized in that, It also includes a guide structure (170), which includes a guide portion (134) and a guide groove (170a) along the axial direction (X) of the roller mop (121). The guide portion (134) is located at one end of the arc-shaped cover (132) away from the connecting portion (131), and the guide groove (170a) is located on the roller support (122). The guide portion (134) moves in conjunction with the guide groove (170a) so that the roller cover (130) switches between the avoidance position and the blocking position along the circumference of the roller mop (121).

10. The cleaning equipment (100) according to claim 9, characterized in that, The cross-sectional shape of the guide groove (170a) and / or the guide portion (134) does not match the circumferential movement trajectory of the roller cover (130) along the roller mop (121), and the cross-section is perpendicular to the axial direction (X) of the roller mop (121).

11. The cleaning equipment (100) according to claim 6, characterized in that, It also includes a limiting structure disposed on the roller cover (130) and / or the roller support (122), the limiting structure being used to constrain the rotation angle of the roller cover (130).

12. The cleaning equipment (100) according to claim 9, characterized in that, The arc-shaped cover (132) is provided with a reinforcing part (135), and the reinforcing part (135) is connected to the guide part (134); The thickness of the reinforcing part (135) is greater than the thickness of the arc-shaped cover (132), and the thickness of the guide part (134) is less than the thickness of the arc-shaped cover (132).

13. The cleaning equipment (100) according to claim 6, characterized in that, The roller assembly (120) further includes a scraping structure (190), which is disposed on the roller support (122). The scraping structure (190) is partially located in the receiving cavity (122a). The scraping structure (190) includes a scraping strip (191) that is in interference contact with the roller mop (121). When the roller cover (130) is in the avoidance position along the travel direction (Y) of the cleaning device (100), the roller cover (130) and the scraping structure (190) are respectively located on both sides of the center of the roller mop (121).

14. The cleaning equipment (100) according to claim 6, characterized in that, The roller assembly (120) further includes a liquid distribution assembly (200), which includes a water distribution channel (210) and a cover plate (220). The water distribution channel (210) is disposed on the roller support (122), and the cover plate (220) covers the water distribution channel (210). Along the radial direction of the roller mop (121), the roller cover (130) is located outside the cover plate (220), and there is an movable gap between the roller cover (130) and the cover plate (220).

15. The cleaning equipment (100) according to claim 1, characterized in that, The drive mechanism (140) includes a drive displacement assembly (141), which is at least used to drive the roller assembly (120) to expand outward or retract inward along the axial direction (X) of the roller cloth (121) to have an expanding position and a retracting position. When the roller assembly (120) is in the extended position, at least a portion of the roller assembly (120) extends out of the base (110), a portion of the roller assembly (120) is located in the receiving cavity (110a) of the base (110), and another portion of the roller assembly (120) extends beyond the outside of the base (110); along the axial direction (X) of the roller assembly (120), the portion of the roller assembly (120) outside the base (110) is greater than the portion of the roller assembly (120) outside the base (110) when the roller assembly (120) is in the retracted position; The roller cover (130) expands outward or retracts inward synchronously with the roller assembly (120).

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