Mopping mechanism and cleaning robot

Abstract

The present invention relates to a mop mechanism and a cleaning robot. The mop mechanism comprises: a first roller, a second roller, and a first mop, wherein the first roller and the second roller are spaced apart. A first connecting portion is provided on the free edge of the first mop. The mop mechanism is capable of switching between a track state and a roller state. In the roller state, the first mop is wound around the first roller, and the first connecting portion is detachably connected to the first mop. In the track state, the first mop can be arranged on the outer circumference of the first and second rollers, and the first connecting portion is detachably connected to the first mop. The above-described mop mechanism integrates the advantages of both drum-type and track-type mops, facilitating improved adaptability of the mop mechanism to different terrains, thereby enhancing cleaning effectiveness and work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of sweeping robots, and in particular to a mopping mechanism and a cleaning robot. Background Art

[0002] As people's demands for a better quality of life continue to rise, they are increasingly adopting robot vacuums for household cleaning tasks like sweeping and mopping. Robot vacuums are a type of smart home appliance that, with the help of artificial intelligence, automatically clean the floor. They typically use brushing, rolling, and vacuuming to collect debris into their own trash collection bins, completing their floor cleaning tasks.

[0003] In traditional technology, sweeping robots with mopping functions mostly use single mops, such as flat mops, rotary mops, track mops, and roller mops. However, track mops have a relatively large contact area with the ground, so they have relatively considerable cleaning efficiency when facing large areas of sewage. However, when facing large undulations on the ground and stubborn stains, their larger contact surface will be pushed out of the gaps, resulting in omissions from cleaning. Double-roller mops can complement this, and the smaller contact area with the ground improves the cleaning effect, but the efficiency is low when cleaning large areas of sewage. Summary of the Invention

[0004] Based on this, it is necessary to provide a mop mechanism and a cleaning robot that can effectively ensure the cleaning effect of different cleaning environments and improve the cleaning efficiency.

[0005] The technical solution is as follows: a mop mechanism for being installed on a robot body, the mop mechanism comprising: a first roller and a second roller, the first roller and the second roller being spaced apart; a first mop, the free edge of the first mop being provided with a first connecting portion, the mop mechanism being capable of switching between a track state and a roller state. In the roller state, the first mop is wound around the first roller, and the first connecting portion is detachably connected to the first mop; in the track state, the first mop can be provided on the outer periphery of the first roller and the second roller, and the first connecting portion is detachably connected to the first mop.

[0006] During use, the mop mechanism can switch between two operating modes, a drum mode and a crawler mode, depending on the cleaning situation. When cleaning areas with large undulations or stubborn stains, the mop mechanism switches to drum mode, with the first roller brush wound around the first roller to reduce the contact area with the ground and improve the cleaning effect on stubborn stains in the grooves. When cleaning large areas of dirty water, the mop mechanism switches to crawler mode, removing the first mop from the first roller and wrapping it around the outer circumference of the first and second rollers. This allows the first mop to rotate when the first and second rollers rotate, forming a crawler structure. This increases the contact area between the first mop and the ground, thereby improving the cleaning effect on large areas of dirty water or stains. This mop mechanism integrates the advantages of both drum and crawler mops, improving the mop mechanism's adaptability to different terrains and thus improving cleaning effectiveness and work efficiency.

[0007] In one embodiment, the mopping mechanism further includes a second mopping cloth, and a second connecting portion is provided on the free edge of the second mopping cloth. In the roller state, the second mopping cloth is wound around the second roller, and the second connecting portion is detachably connected to the second mopping cloth; in the crawler state, the second mopping cloth can be wound around the outer circumference of the first roller and the second roller; or,

[0008] In the crawler state, the mopping mechanism further includes a second mopping cloth, a second connecting portion is provided on the free edge of the second mopping cloth, the first mopping cloth and the second mopping cloth are connected to each other to form a crawler, the crawler is wound around the outer circumference of the first roller and the second roller, the first connecting portion is detachably connected to the second mopping cloth, and the second connecting portion is detachably connected to the first mopping cloth.

[0009] In one embodiment, the first connecting portion is provided on the outer surface of the first mop, and the inner surface of the first mop is further provided with a third connecting portion, and the third connecting portion and the first connecting portion are respectively provided on two opposite free edges of the first mop. In the drum state, the first connecting portion is detachably connected to the inner surface of the first mop, and the third connecting portion is detachably connected to the outer surface of the first mop; in the crawler state, the first connecting portion is connected to the other free edge of the first mop to form the crawler; or,

[0010] The first connecting portion is connected to the inner surface of the second mopping cloth, and the third connecting portion is connected to the outer surface of the second mopping cloth to form the crawler belt.

[0011] In one embodiment, the second connecting portion is provided on the outer surface of the second mop cloth, and a fourth connecting portion is further provided on the inner surface of the second mop cloth. The second connecting portion and the fourth connecting portion are respectively provided on two opposite free edges of the second mop cloth. In the drum state, the second connecting portion is connected to the inner surface of the second mop cloth, and the fourth connecting portion is connected to the outer surface of the second mop cloth; in the crawler state, the second connecting portion is connected to the inner surface of the second mop cloth to form a crawler. Alternatively,

[0012] The second connecting portion is connected to the inner surface of the first mopping cloth, and the fourth connecting portion is connected to the outer surface of the first mopping cloth to form a crawler belt.

[0013] In one embodiment, the first mop includes a first segment and a second segment, one end of the first segment is connected to one end of the second segment to form a first matching structure, and the second mop includes a third segment and a fourth segment, one end of the third segment is connected to one end of the fourth segment to form a second matching structure; the first connecting portion is provided on the first segment, the third connecting portion is provided on the second segment, the fourth connecting portion is provided on the third segment, and the second connecting portion is provided on the fourth segment;

[0014] In the drum state, the first connection portion is connected to the inner side of the first matching structure, the third connection portion is connected to the outer side of the first matching structure, the second connection portion is connected to the inner side of the second matching structure, and the fourth connection portion is connected to the outer side of the second matching structure;

[0015] In the crawler state, the first segment is located inside the third segment, the second segment is located outside the fourth segment, and the other end of the third segment is spaced apart from the other end of the fourth segment so that the first matching structure is located between the other end of the third segment and the fourth segment.

[0016] The other end of the first segment and the other end of the second segment are relatively spaced apart from each other, so that the second matching structure is arranged between the other end of the first segment and the other end of the second segment.

[0017] In one embodiment, a fifth connection portion is provided on the outer side of the first matching structure, a seventh connection portion is provided on the inner side of the first matching structure, and a sixth connection portion is provided on the inner side of the second matching structure.

[0018] An eighth connection portion is provided on the outer side of the second matching structure. In the crawler state, the first connection portion is connected to the sixth connection portion, the third connection portion is connected to the eighth connection portion, the second connection portion is connected to the seventh connection portion, and the fourth connection portion is connected to the fifth connection portion to form a crawler together.

[0019] In one embodiment, a first protrusion is provided on the inner surface of the first mop. In the roller state, the first protrusion abuts against the circumferential outer wall of the first roller. In the crawler state, the first mop rotates around the first roller and the second roller, and the first protrusion can abut against the circumferential outer wall of the first roller and the second roller.

[0020] In one embodiment, a second protrusion is provided on the inner surface of the second mop cloth. In the drum state, the second protrusion abuts against the circumferential outer wall of the second drum. In the crawler state, the second protrusion abuts against the circumferential outer wall of the second drum.

[0021] The second mop rotates around the first roller and the second roller, and the second protrusion can abut against the circumferential outer walls of the first roller and the second roller; or,

[0022] The first mopping cloth and the second mopping cloth are connected to each other to form the crawler belt, and the crawler belt rotates around the first roller and the second roller. The first protrusion and the second protrusion can both abut against the circumferential outer walls of the first roller and the second roller.

[0023] In one embodiment, a third protrusion is provided on the circumference of the first roller, and a fourth protrusion is provided on the circumference of the second roller. In the roller state, the third protrusion abuts against the inner surface of the first mop, and the fourth protrusion abuts against the inner surface of the second mop. In the crawler state, the third protrusion and the fourth protrusion are both used to abut against the inner surface of the first mop and the inner surface of the second mop.

[0024] In one embodiment, the first protrusion, the second protrusion, the third protrusion and the fourth protrusion are all ratchet teeth, and the first protrusion and the second protrusion have the same orientation around the axis of the first roller, the third protrusion has opposite orientations around the axis of the first roller and the fourth protrusion has opposite orientations around the axis of the second roller, and the first protrusion and the third protrusion have the same orientation, wherein the orientation of the third protrusion is consistent with the rotation direction of the first roller.

[0025] In one embodiment, the mop mechanism further includes a scraper, which is arranged between the first roller and the second roller, and has a first scraping portion and a second scraping portion provided at opposite ends of the scraper, respectively. The first scraping portion is arranged corresponding to the first roller. In the roller state, the first scraping portion abuts against the outer surface of the first mop, and the second scraping portion abuts against the outer surface of the second mop; in the crawler state, the first scraping portion can abut against the outer surface of the first mop and the outer surface of the second mop.

[0026] In one embodiment, the mopping mechanism further includes a dirt receiving member, which is disposed between the first roller and the second roller, and is disposed below the dirt scraping plate.

[0027] A cleaning robot comprises a robot body and any one of the above-mentioned mopping mechanisms, wherein the mopping mechanism is connected to the robot body.

[0028] During use, the cleaning robot can switch between two operating modes: a drum mode and a crawler mode, depending on the cleaning situation. When cleaning areas with large undulations or stubborn stains, the mop mechanism switches to drum mode, with the first roller brush wound around the first roller to reduce the contact area with the ground and improve the cleaning effect on stubborn stains in the grooves. When cleaning large areas of dirty water, the robot switches to crawler mode, removing the first mop from the first roller and wrapping it around the outer circumference of the first and second rollers. This allows the first mop to rotate when the first and second rollers rotate, forming a crawler structure. This increases the contact area between the first mop and the ground, thereby improving the cleaning effect on large areas of dirty water or stains. This mop mechanism integrates the advantages of both drum and crawler mops, improving the mop mechanism's adaptability to different terrains and thus improving cleaning effectiveness and work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 is a cross-sectional view of a cloth-dragging mechanism in a crawler state in one embodiment;

[0032] Figure 2 for Figure 1 A cross-sectional view of the mopping mechanism in a dual-drum state;

[0033] Figure 3 for Figure 1 A schematic structural diagram of the first mop described in ;

[0034] Figure 4 for Figure 1 A schematic structural diagram of the second mop described in;

[0035] Figure 5 for Figure 1 Schematic diagram of the structure of the crawler described in.

[0036] Description of reference numerals:

[0037] 100. mopping mechanism; 110. first roller; 111. third protrusion; 120. second roller; 121. fourth protrusion; 13. crawler belt; 130. first mopping cloth; 131. first connecting portion; 132. first segment; 133. second segment; 134. third connecting portion; 135. fifth connecting portion; 136. seventh connecting portion; 137. first protrusion; 138. first matching portion; 140. second mopping cloth; 141. second connecting portion; 142. third segment; 143. fourth segment; 144. fourth connecting portion; 145. sixth connecting portion; 146. eighth connecting portion; 147. second protrusion; 148. second matching portion; 150. scraper; 151. first scraping portion; 152. second scraping portion; 160. dirt receiving member. DETAILED DESCRIPTION

[0038] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0040] 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0041] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0042] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0043] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0044] See also Figure 1 and Figure 2 , Figure 1 shows a cross-sectional view of the mopping mechanism 100 in a crawler state according to an embodiment of the present invention; Figure 2 Shown Figure 1 A cross-sectional view of the mopping mechanism 100 in the dual-drum state is provided in accordance with an embodiment of the present invention. The mopping mechanism 100 is configured to be mounted on a robot body. The mopping mechanism 100 includes a first drum 110, a second drum 120, and a first mopping cloth 130. The first drum 110 and the second drum 120 are spaced apart. A first connecting portion 131 is provided on the free edge of the first mopping cloth 130. The mopping mechanism 100 is capable of switching between a crawler state and a drum state. In the drum state, the first mopping cloth 130 is wound around the first drum 110, and the first connecting portion 131 is detachably connected to the first mopping cloth 130. In the crawler state, the first mopping cloth 130 can be disposed on the outer circumference of the first drum 110 and the second drum 120, and the first connecting portion 131 is detachably connected to the first mopping cloth 130.

[0045] The above-mentioned mopping mechanism 100 can switch between two working modes, namely, the drum mode and the crawler mode, in the face of different cleaning conditions during use. When the ground is undulating and the stains are stubborn, the mopping mechanism 100 is switched to the drum mode, and the first roller brush is wound around the first roller 110.

[0046] The contact area with the ground is reduced, improving the cleaning effect on stubborn stains in grooves and crevices. When dealing with large areas of dirty water, the mop mechanism 100 switches to crawler mode, removing the first mop cloth 130 from the first roller 110 and wrapping it around the outer circumference of the first roller 110 and the second mop cloth 140. When the first roller 110 and the second roller 120 rotate, the first mop cloth 130 is driven to rotate to form a crawler structure. This helps increase the contact area between the first mop cloth 130 and the ground, thereby improving the cleaning effect on large areas of dirty water or stains. This mop mechanism 100 integrates the advantages of both drum and crawler mops, which helps improve the adaptability of the mop mechanism 100 to different terrains, thereby improving cleaning effect and work efficiency.

[0047] The free edge of the first mop 130 is the side of the first mop 130 that can move freely.

[0048] Specifically, the first mop 130 is a cleaning cloth material, and two opposite ends in the length direction thereof are respectively two free edges.

[0049] See also Figure 3 、 Figure 4 and Figure 5 , Figure 3 Shown Figure 1 A schematic structural diagram of the first mop 130 described in FIG. Figure 4 Shown Figure 1 A schematic structural diagram of the second mop 140 described in FIG. Figure 5 Shown Figure 1 In one embodiment, the mopping mechanism 100 further includes a second mopping cloth 140 .

[0050] A second connecting portion 141 is provided on the free edge of the second mopping cloth 140. In the drum state, the second mopping cloth 140 is wound around the second roller 120, and the second connecting portion 141 is detachably connected to the second mopping cloth 140. In the track state, the second mopping cloth 140 can be wound around the outer circumference of the first roller 110 and the second roller 120.

[0051] Alternatively, the mopping mechanism 100 further includes a second mopping cloth 140, with a second connecting portion 141 provided on a free edge of the second mopping cloth 140. The first mopping cloth 130 and the second mopping cloth 140 are interconnected to form a crawler belt 13, which is wound around the outer circumferences of the first roller 110 and the second roller 120. The first connecting portion 131 is detachably connected to the second mopping cloth 140, and the second connecting portion 141 is detachably connected to the first mopping cloth 130. Therefore, in this embodiment, each roller of the mopping mechanism 100 is provided with a detachable mopping cloth, and in crawler belt mode, the mechanism can be used in two ways: each mopping cloth can be individually wrapped around the outer circumferences of the first roller 110 and the second roller 120 to perform crawler belt mode mopping operations, or the first mopping cloth 130 and the second mopping cloth 140 can be interconnected to form a double-layer crawler belt 13, which is wrapped around the outer circumferences of the first roller 110 and the second roller 120, thereby achieving normal operation in crawler belt mode.

[0052] Specifically, see Figure 3The first connecting portion 131 is provided on the outer surface of the first mopping cloth 130. The inner surface of the first mopping cloth 130 is further provided with a third connecting portion 134. The third connecting portion 134 and the first connecting portion 131 are respectively provided on two opposing free edges of the first mopping cloth 130. In the drum mode, the first connecting portion 131 is detachably connected to the inner surface of the first mopping cloth 130, and the third connecting portion 134 is detachably connected to the outer surface of the first mopping cloth 130. In the track mode, the first connecting portion 131 is connected to the other free edge of the first mopping cloth 130 to form the track 13. Specifically, the opposing ends of the first mopping cloth 130 are connected to form a single-layer track 13 that forms an annular shape.

[0053] Alternatively, the first connecting portion 131 is connected to the inner surface of the second mopping cloth 140, and the third connecting portion 134 is connected to the outer surface of the second mopping cloth 140, together forming the track 13. That is, the first mopping cloth 130 and the second mopping cloth 140 are connected to each other to form a double-layer track 13, which is sleeved onto two roller brushes to form a track structure. The connection between the first connecting portion 131 and the third connecting portion 134 helps improve the connection stability between the first and third mopping cloths 130, thereby reducing the risk of the track 13 disconnecting.

[0054] Further, see Figure 4 The second connecting portion 141 is provided on the outer surface of the second mopping cloth 140, and the fourth connecting portion 144 is provided on the inner surface of the second mopping cloth 140. The second connecting portion 141 and the fourth connecting portion 144 are respectively provided on two opposing free edges of the second mopping cloth 140. In the roller state, the second connecting portion 141 is connected to the inner surface of the second mopping cloth 140, and the fourth connecting portion 144 is connected to the outer surface of the second mopping cloth 140. In the track state, the second connecting portion 141 is connected to the inner surface of the second mopping cloth 140 to form the track 13. Alternatively, the second connecting portion 141 is connected to the inner surface of the first mopping cloth 130, and the fourth connecting portion 144 is connected to the outer surface of the first mopping cloth 130 to form the track 13. Therefore, the second mop cloth 140 is also provided with two connection parts. When the double-layer crawler 13 is in working state, the first mop cloth 130 and the second mop cloth 140 have four connection positions, which is conducive to further improving the connection stability between the first mop cloth 130 and the third mop cloth, reducing the risk of the crawler 13 loosening, and improving the work quality.

[0055] In one embodiment, see Figure 3The first mop cloth 130 includes a first segment 132 and a second segment 133. One end of the first segment 132 is connected to one end of the second segment 133 to form a first mating structure. The second mop cloth 140 includes a third segment 142 and a fourth segment 143. One end of the third segment 142 is connected to one end of the fourth segment 143 to form a second mating structure. The first connecting portion 131 is provided on the first segment 132, the third connecting portion 134 is provided on the second segment 133, the fourth connecting portion 144 is provided on the third segment 142, and the second connecting portion 141 is provided on the fourth segment 143.

[0056] In the drum mode, the first connecting portion 131 connects to the inside of the first mating structure, the third connecting portion 134 connects to the outside of the first mating structure, the second connecting portion 141 connects to the inside of the second mating structure, and the fourth connecting portion 144 connects to the outside of the second mating structure. Thus, when the first mop cloth 130 is wrapped around the first drum 110 and the second mop cloth 140 is wrapped around the second drum 120, the mops on each drum form a double-layered ring structure, which is uniform and has no uneven spots, thus improving the uniformity of mopping.

[0057] In the crawler track state, the first segment 132 is located inside the third segment 142, and the second segment 133 is located outside the fourth segment 143. The other end of the third segment 142 is spaced relative to the other end of the fourth segment 143, so that the first mating structure is located between the other end of the third segment 142 and the other end of the fourth segment 143. The other end of the first segment 132 is spaced relative to the other end of the second segment 133, so that the second mating structure is located between the other end of the first segment 132 and the other end of the second segment 133. Therefore, when the double-layer crawler track 13 is used, the first mopping cloth 130 and the second mopping cloth 140 are combined to form a uniform crawler track structure, eliminating unevenness on the inside and outside of the crawler track 13, which helps improve uniformity and stability during mopping.

[0058] Further, see Figure 3 、 Figure 4 and Figure 5 The first mating structure has a fifth connecting portion 135 on its outer side, a seventh connecting portion 136 on its inner side, a sixth connecting portion 145 on its inner side, and an eighth connecting portion 146 on its outer side. In the crawler mode, the first connecting portion 131 connects to the sixth connecting portion 145, the third connecting portion 134 connects to the eighth connecting portion 146, the second connecting portion 141 connects to the seventh connecting portion 136, and the fourth connecting portion 144 connects to the fifth connecting portion 135, forming the crawler track 13. This facilitates assembly and disassembly when switching from roller mode to crawler mode, improving connection efficiency and thus user convenience.

[0059] Optionally, the connection between the various connecting parts may be magnetic connection, snap connection, bonding, hook connection, plug connection or other connection methods.

[0060] Specifically, the various connecting parts are connected by Velcro. This flexible Velcro structure does not hinder the deformation of the first mop cloth 130 and the second mop cloth 140, thereby ensuring normal operation in both drum mode and track mode. Furthermore, the Velcro connection method is highly reliable and has good tensile strength, which helps ensure the stability of the connection between the first mop cloth 130 and the second mop cloth 140. This embodiment only provides a specific connection method between the various connecting parts, but is not limited to this.

[0061] In one embodiment, see Figure 3 The first mop cloth 130 is provided with a first protrusion 137 on its inner surface. In the drum mode, the first protrusion 137 abuts the circumferential outer wall of the first roller 110. In the track mode, the first mop cloth 130 rotates around the first and second rollers 110, 120, and the first protrusion 137 abuts the circumferential outer walls of the first and second rollers 110, 120. Thus, in the drum mode, the first protrusion 137 on the inner surface of the first mop cloth 130 increases friction between the first mop cloth 130 and the first roller 110, thereby preventing the first mop cloth 130 from slipping on the rollers and affecting the cleaning effect. In the track mode, friction is also increased, preventing the track 13 from slipping on the first and second rollers 110, 120.

[0062] Further, see Figure 4 The second mop cloth 140 is provided with a second protrusion 147 on its inner surface. In the drum mode, the second protrusion 147 abuts the circumferential outer wall of the second roller 120. In the track mode, the second mop cloth 140 rotates around the first and second rollers 110, 120, and the second protrusion 147 can abut the circumferential outer walls of the first and second rollers 110, 120. Alternatively, the first and second mop cloths 130, 140 are connected to form a track 13, which rotates around the first and second rollers 110, 120. Both the first and second protrusions 137, 147 can abut the circumferential outer walls of the first and second rollers 110, 120. Thus, in the drum mode, the second protrusion 147 provided on the inner surface of the second mop cloth 140 increases friction between the second mop cloth 140 and the second roller 120, thereby preventing the first mop cloth 130 from slipping on the track and affecting the cleaning effect. In the crawler mode, the friction force can also be increased, thereby preventing the crawler 13 from slipping on the first roller 110 and the second roller 120 .

[0063] In one embodiment, a third protrusion 111 is provided on the circumference of the first roller 110, and a fourth protrusion 121 is provided on the circumference of the second roller 120. In the roller mode, the third protrusion 111 abuts the inner surface of the first mopping cloth 130, and the fourth protrusion 121 abuts the inner surface of the second mopping cloth 140. In the track mode, both the third protrusion 111 and the fourth protrusion 121 abut the inner surfaces of the first and second mopping cloths 130, 140. This arrangement, with protrusions not only on the first and second mopping cloths 130, 140, but also on the first and second rollers 110, 120, further prevents slippage and ensures transmission efficiency.

[0064] Optionally, the first protrusion 137 , the second protrusion 147 , the third protrusion 111 and the fourth protrusion 121 may be rubber protrusions, hooks, needle-like structures, ridge structures or other structures capable of increasing friction.

[0065] In one embodiment, see Figure 3 、 Figure 4 and Figure 5 The first protrusion 137, the second protrusion 147, the third protrusion 111, and the fourth protrusion 121 are all ratchet teeth. The first protrusion 137 and the second protrusion 147 are oriented in the same direction around the axis of the first roller 110. The third protrusion 111 and the fourth protrusion 121 are oriented in opposite directions around the axis of the second roller 120. The first protrusion 137 and the third protrusion 111 are oriented in the same direction. The direction of the third protrusion 111 is consistent with the rotation direction of the first roller 110. This ratchet engagement further ensures transmission efficiency and prevents slippage between the roller and the mop.

[0066] In one embodiment, see Figure 1 and Figure 2The mopping mechanism 100 also includes a scraper 150, which is disposed between the first roller 110 and the second roller 120. The scraper 150 is provided with a first scraping portion 151 and a second scraping portion 152 at opposite ends, respectively. The first scraping portion 151 is disposed corresponding to the first roller 110. In the roller mode, the first scraping portion 151 abuts the outer surface of the first mopping cloth 130, and the second scraping portion 152 abuts the outer surface of the second mopping cloth 140. In the crawler mode, the first scraping portion 151 can abut the outer surfaces of the first and second mopping cloths 130, 140. Thus, in the roller mode, as the first and second rollers 110, 120 rotate, the scraper 150 can simultaneously scrape dirt and dirty water off the first and second mopping cloths 130, 140. In the crawler state, the scraper 150 can scrape off the dirt and sewage on the crawler 13, and can also provide support for the crawler 13, so that the crawler 13 is tightened, thereby improving the transmission efficiency.

[0067] In the roller state, the first roller 110 and the second roller 120 can rotate in the same or opposite directions. When the first roller 110 and the second roller 120 rotate in opposite directions, the first roller 110 can rotate clockwise and the second roller 120 can rotate counterclockwise, and both can rotate inward simultaneously. Alternatively, the first roller 110 can rotate counterclockwise and the second roller 120 can rotate clockwise, and both can rotate outward simultaneously. In the crawler state, the first roller 110 and the second roller 120 rotate in the same direction.

[0068] Further, see Figure 1 and Figure 2 The mop mechanism 100 further includes a dirt receiving member 160, which is disposed between the first roller 110 and the second roller 120 and below the scraper 150. In this way, the dirt and sewage scraped by the scraper 150 can be received to improve cleaning efficiency.

[0069] In one embodiment, a cleaning robot (not shown in the figure) includes a robot body and any one of the above-mentioned mopping mechanisms 100 , wherein the mopping mechanism 100 is connected to the robot body.

[0070] During use, the cleaning robot can switch between two operating modes: a drum mode and a crawler mode. When cleaning areas with large undulations or stubborn stains, the mop mechanism 100 switches to drum mode, with the first roller brush wound around the first roller 110 to reduce the contact area with the ground and improve the cleaning effect on stubborn stains in crevices. When cleaning large areas of dirty water, the robot switches to crawler mode, removing the first mop 130 from the first roller 110 and wrapping it around the outer circumference of the first roller 110 and the second mop 140. Rotating the first roller 110 and the second roller 120 drives the first mop 130 to rotate, forming a crawler structure. This increases the contact area between the first mop 130 and the ground, thereby improving the cleaning effect on large areas of dirty water or stains. This mop mechanism 100 combines the advantages of both drum and crawler mops, improving the mop mechanism's adaptability to different terrains and enhancing cleaning effectiveness and work efficiency.

[0071] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A mopping mechanism, for installation on a robot body, characterized in that: The mopping mechanism comprises: a first roller and a second roller, wherein the first roller and the second roller are spaced apart from each other; A first mop cloth, wherein a first connecting portion is provided on a free edge of the first mop cloth, and the mop mechanism can switch between a track state and a roller state. In the roller state, the first mop cloth is wound around the first roller, and the first connecting portion is detachably connected to the first mop cloth; in the track state, the first mop cloth can be provided on the outer periphery of the first roller and the second roller, and the first connecting portion is detachably connected to the first mop cloth.

2. The mopping mechanism according to claim 1, characterized in that: The mopping mechanism further includes a second mopping cloth, wherein a second connecting portion is provided on a free edge of the second mopping cloth. In the roller state, the second mopping cloth is wound around the second roller, and the second connecting portion is detachably connected to the second mopping cloth; in the crawler state, the second mopping cloth can be wound around the outer circumference of the first roller and the second roller; or, The mopping mechanism further includes a second mopping cloth, a second connecting portion being provided on a free edge of the second mopping cloth. In the crawler state, the first mopping cloth and the second mopping cloth are connected to each other to form a crawler, and the crawler is wound around the outer circumference of the first roller and the second roller. The first connecting portion is detachably connected to the second mopping cloth, and the second connecting portion is detachably connected to the first mopping cloth.

3. The mopping mechanism according to claim 2, characterized in that: The first connecting portion is provided on the outer surface of the first mop, and the inner surface of the first mop is further provided with a third connecting portion. The third connecting portion and the first connecting portion are respectively provided on two opposite free edges of the first mop. In the drum state, the first connecting portion is detachably connected to the inner surface of the first mop, and the third connecting portion is detachably connected to the outer surface of the first mop; in the crawler state, the first connecting portion is connected to the other free edge of the first mop to form the crawler; or, The first connecting portion is connected to the inner surface of the second mopping cloth, and the third connecting portion is connected to the outer surface of the second mopping cloth to form the crawler belt.

4. The mopping mechanism according to claim 3, characterized in that: The second connecting portion is provided on the outer surface of the second mop, and a fourth connecting portion is further provided on the inner surface of the second mop. The second connecting portion and the fourth connecting portion are respectively provided on two opposite free edges of the second mop. In the drum state, the second connecting portion is connected to the inner surface of the second mop, and the fourth connecting portion is connected to the outer surface of the second mop; in the crawler state, the second connecting portion is connected to the inner surface of the second mop to form a crawler, or, The second connecting portion is connected to the inner surface of the first mopping cloth, and the fourth connecting portion is connected to the outer surface of the first mopping cloth to form a crawler belt.

5. The mopping mechanism according to claim 4, characterized in that: The first mop includes a first segment and a second segment, one end of the first segment is connected to one end of the second segment to form a first matching structure, and the second mop includes a third segment and a fourth segment, one end of the third segment is connected to one end of the fourth segment to form a second matching structure; the first connecting portion is provided on the first segment, the third connecting portion is provided on the second segment, the fourth connecting portion is provided on the third segment, and the second connecting portion is provided on the fourth segment; In the drum state, the first connection portion is connected to the inner side of the first matching structure, the third connection portion is connected to the outer side of the first matching structure, the second connection portion is connected to the inner side of the second matching structure, and the fourth connection portion is connected to the outer side of the second matching structure; In the crawler state, the first segment is located on the inner side of the third segment, the second segment is located on the outer side of the fourth segment, the other end of the third segment and the other end of the fourth segment are relatively spaced apart, so that the first matching structure is arranged between the other end of the third segment and the other end of the fourth segment, and the other end of the first segment and the other end of the second segment are relatively spaced apart, so that the second matching structure is arranged between the other end of the first segment and the other end of the second segment.

6. The mopping mechanism according to claim 5, characterized in that: A fifth connection portion is provided on the outer side of the first matching structure, a seventh connection portion is provided on the inner side of the first matching structure, a sixth connection portion is provided on the inner side of the second matching structure, and an eighth connection portion is provided on the outer side of the second matching structure. In the crawler state, the first connection portion is connected to the sixth connection portion, the third connection portion is connected to the eighth connection portion, the second connection portion is connected to the seventh connection portion, and the fourth connection portion is connected to the fifth connection portion to form a crawler together.

7. The mopping mechanism according to claim 2, characterized in that: A first protrusion is provided on the inner surface of the first mop. In the roller state, the first protrusion abuts against the circumferential outer wall of the first roller. In the crawler state, the first mop rotates around the first roller and the second roller, and the first protrusion can abut against the circumferential outer walls of the first roller and the second roller.

8. The mopping mechanism according to claim 7, characterized in that: A second protrusion is provided on the inner surface of the second mop cloth. In the roller state, the second protrusion abuts against the circumferential outer wall of the second roller. In the crawler state, the second mop cloth rotates around the first roller and the second roller, and the second protrusion can abut against the circumferential outer walls of the first roller and the second roller. or, The first mopping cloth and the second mopping cloth are connected to each other to form the crawler belt, and the crawler belt rotates around the first roller and the second roller. The first protrusion and the second protrusion can both abut against the circumferential outer walls of the first roller and the second roller.

9. The mopping mechanism according to claim 8, characterized in that: A third protrusion is provided on the circumference of the first roller, and a fourth protrusion is provided on the circumference of the second roller. In the roller state, the third protrusion abuts against the inner surface of the first mop, and the fourth protrusion abuts against the inner surface of the second mop. In the crawler state, the third protrusion and the fourth protrusion are both used to abut against the inner surface of the first mop and the inner surface of the second mop.

10. The mopping mechanism according to claim 9, characterized in that: The first protrusion, the second protrusion, the third protrusion and the fourth protrusion are all ratchet teeth, and the first protrusion and the second protrusion have the same orientation around the axis of the first roller, the third protrusion has opposite orientations around the axis of the first roller and the fourth protrusion has opposite orientations around the axis of the second roller, and the first protrusion and the third protrusion have the same orientation, wherein the orientation of the third protrusion is consistent with the rotation direction of the first roller.

11. The mopping mechanism according to any one of claims 2 to 9, characterized in that: The mopping mechanism further includes a scraping plate, which is arranged between the first roller and the second roller, and has a first scraping portion and a second scraping portion provided at opposite ends of the scraping plate, respectively. The first scraping portion is arranged corresponding to the first roller. In the roller state, the first scraping portion abuts against the outer surface of the first mop, and the second scraping portion abuts against the outer surface of the second mop; in the crawler state, the first scraping portion can abut against the outer surface of the first mop and the outer surface of the second mop.

12. The mopping mechanism according to claim 11, characterized in that: The mopping mechanism further includes a dirt receiving member, which is arranged between the first roller and the second roller, and is arranged below the dirt scraping plate.

13. A cleaning robot, characterized in that: The cleaning robot comprises a robot body and the mopping mechanism according to any one of claims 1 to 12, wherein the mopping mechanism is connected to the robot body.

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