Cleaning robot and mopping assembly

Abstract

The embodiment of the invention provides a cleaning robot and a mopping assembly. The cleaning robot comprises a machine body; the mopping assembly comprises a cleaning unit motor, a cleaning unit, a liquid supply mechanism and a dirt removal mechanism; the cleaning unit motor is connected with the cleaning unit, the liquid supply mechanism is used for providing cleaning liquid for the cleaning unit, and the dirt removal mechanism is used for scraping dirt on the cleaning unit; in the advancing direction of the cleaning robot, the dirt removing mechanism is located on the front side of the cleaning unit. According to the technical scheme, the dirt removing mechanism is arranged on the front side of the cleaning unit, and the cleaning blind area is small.

Description

[0001] Cross-reference

[0002] This application incorporates by reference the following Chinese patent applications, which are hereby incorporated in their entirety by reference into this application.

[0003] Application date Application Number Patent Name 2024-01-05 202410018264.3 Self-moving cleaning equipment, control method and cleaning system 2024-08-05 202411067857.5 Cleaning robot and mopping components Technical Field

[0004] This application relates to the field of robotics, and particularly to a cleaning robot and a mopping and washing assembly. Background Art

[0005] Most existing sweeping and mopping integrated cleaning robots clean the floor by first vacuuming and then mopping. For example, a rag tray is provided at the bottom of the cleaning robot, and the floor is mopped by a rotating rag tray. However, there is a problem of smearing when mopping with the rag tray, because the rag tray does not have a self-cleaning function after being soiled. Later, cleaning robots using a roller to mop the floor appeared. Such cleaning robots have a roller, a clean water supply device, a squeegee, and a sewage collection device. During each rotation of the roller, it receives clean water supplied by the clean water supply device. After mopping is completed, it is self-cleaned by the squeegee while cleaning, realizing a live water mopping with self-cleaning while mopping, which can improve the problem of smearing.

[0006] For existing sweeping robots with a rag tray or a mopping assembly, the rag can cover the tail of the robot, and there is no cleaning blind area. However, for a sweeping robot using a cleaning roller as the mopping assembly, since there is a certain distance between the roller and the edge of the tail of the body, there is a mopping blind area when the robot cleans the corner, and supplementary mopping is required. Summary of the Invention

[0007] In view of the above problems, this application proposes a cleaning robot and a mopping and washing assembly that can always achieve self-cleaning of the roller and can reduce the cleaning blind area.

[0008] In one embodiment of this application, a cleaning robot is provided. The cleaning robot includes:

[0009] A body;

[0010] A mopping and washing assembly, including a cleaning unit motor, a cleaning unit, a liquid supply mechanism, and a decontamination mechanism; the cleaning unit motor is connected to the cleaning unit, the liquid supply mechanism is used to supply cleaning liquid to the cleaning unit, and the decontamination mechanism is used to scrape off the dirt on the cleaning unit;

[0011] Wherein, along the traveling direction of the cleaning robot, the decontamination mechanism is located in front of the cleaning unit;

[0012] Along the rotation direction of the cleaning unit, the cleaning unit is configured to clean the ground after replenishing cleaning liquid through the liquid supply mechanism, and then scrape off dirt through the dirt removal mechanism.

[0013] Optionally, a driving wheel is provided on the body; the rotation direction of the cleaning unit is opposite to the rotation direction of the driving wheel.

[0014] Optionally, the dirt removal mechanism includes a scraping strip assembly and a dirt collection box; the end of the scraping strip assembly is in contact with the cleaning unit, and the dirt collection box is located below the scraping strip assembly;

[0015] When the cleaning unit rotates, the dirt scraped off by the scraping strip assembly enters the dirt collection box.

[0016] Optionally, the lower surface of the scraping strip assembly is a water guiding surface, and the water guiding surface guides the scraped dirt into the dirt collection box.

[0017] Optionally, a sewage tank is provided on the body; an avoidance hole is provided on the scraping strip assembly; one end of a sewage collection pipe passes through the avoidance hole, and the other end is communicated with the dirt collection box; the dirt collection box is communicated with the sewage tank through a flexible sewage pipe.

[0018] Optionally, a chamfer is provided at the front end of the bottom of the dirt collection box.

[0019] Optionally, a chamfer is provided at the front end of the bottom of the body.

[0020] Optionally, in the height direction of the body, the lowest point of the dirt collection box is higher than the lowest point of the bottom of the body.

[0021] Optionally, the dirt collection box is detachable; the detaching direction of the dirt collection box is substantially perpendicular to the detaching direction of the cleaning unit.

[0022] Optionally, the cleaning unit is equal in length to the dirt collection box.

[0023] Optionally, the cleaning robot further includes a driving device, which is arranged on the body and connected to the mopping assembly; along the width direction of the body, the driving device can drive the mopping assembly relative to the body to extend from at least one side of the body so that a part of the mopping assembly is exposed.

[0024] Optionally, the cleaning robot further includes a control device; the control device is electrically connected to the driving device and is used to dynamically control the driving device according to the behavior information of the body, so that the driving device drives the mopping assembly to move relative to the body to change the position of the mopping assembly relative to the body.

[0025] Optionally, the driving device can also drive the mopping and washing assembly to lift relative to the body.

[0026] In another embodiment of the present application, a mopping and washing assembly is provided. The mopping and washing assembly includes:

[0027] A mopping and washing bracket having a drum mounting cavity with an opening facing downwards;

[0028] A cleaning unit motor disposed in the drum mounting cavity;

[0029] A cleaning unit connected to the cleaning unit motor and capable of contacting the surface to be cleaned through the opening;

[0030] A liquid supply mechanism disposed on the mopping and washing bracket for supplying cleaning liquid to the cleaning unit;

[0031] A dirt removal mechanism disposed on the mopping and washing bracket for scraping off dirt on the cleaning unit;

[0032] Wherein, the mopping and washing assembly is used to be installed on a cleaning robot, and along the traveling direction of the cleaning robot, the dirt removal mechanism is located in front of the cleaning unit.

[0033] Optionally, a connection structure for connecting a driving device is provided on the mopping and washing bracket so as to drive the mopping and washing assembly to move through the driving device.

[0034] Optionally, the liquid supply mechanism is located above the cleaning unit; the cleaning unit rotates, after the cleaning unit is replenished with water through the liquid supply mechanism, it cleans the ground, and then the dirt is scraped off by the dirt removal mechanism, and so on in a cycle.

[0035] Optionally, the dirt removal mechanism includes a scraping strip assembly and a dirt collection box; the end of the scraping strip assembly contacts the cleaning unit, and the dirt collection box is located below the scraping strip assembly; when the cleaning unit rotates, the dirt scraped off by the scraping strip assembly enters the dirt collection box through the lower surface of the scraping strip assembly.

[0036] In a third embodiment of the present application, a cleaning robot is provided. The cleaning robot includes:

[0037] A body;

[0038] A mopping and washing assembly including a cleaning unit motor, a cleaning unit, a liquid supply mechanism and a dirt removal mechanism; the cleaning unit motor is connected to the cleaning unit, the liquid supply mechanism is used to supply cleaning liquid to the cleaning unit, and the dirt removal mechanism is used to scrape off dirt on the cleaning unit;

[0039] Wherein, along the traveling direction of the cleaning robot, the dirt removal mechanism is located in front of the cleaning unit.

[0040] In the third embodiment of the present application, a cleaning robot is provided. The cleaning robot includes:

[0041] a body;

[0042] a mopping and washing assembly, including a cleaning unit motor, a cleaning unit and a decontamination mechanism; the cleaning unit motor is connected to the cleaning unit, and the decontamination mechanism is used to scrape off dirt on the cleaning unit;

[0043] wherein, along the traveling direction of the cleaning robot, the decontamination mechanism is located on the front side of the cleaning unit.

[0044] In the technical solution provided by the embodiment of the present application, the mopping and washing assembly moves relative to the body of the cleaning robot as a whole. At any position of the mopping and washing assembly, the liquid supply mechanism can provide cleaning liquid for the cleaning unit, the decontamination mechanism can scrape off the dirt on the cleaning unit, and the cleaning unit can self-clean while working. When the cleaning unit extends outwards for edge cleaning, the cleaning unit will not get overly dirty, and it can still have a good cleaning effect after long-term cleaning, providing a better user experience. In addition, along the traveling direction of the cleaning robot, the decontamination mechanism is arranged on the front side of the cleaning unit, the rotation direction of the cleaning unit is opposite to the rotation direction of the driving wheels, the cleaning effect of the cleaning unit is good, and for the cleaning robot, setting the decontamination mechanism on the front side of the cleaning unit results in a small cleaning blind area. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0046] Figure 1a and 1b show schematic diagrams of edge cleaning in two states where the roller does not extend and extends;

[0047] Figure 1c show a schematic diagram where the bottom surface of the dirt collection box is higher than the bottom surface of the body;

[0048] Figure 2 is a schematic structural diagram of the cleaning robot provided by an embodiment of the present application;

[0049] Figure 3a is an internal schematic diagram of the cleaning robot provided by the embodiment of the present application after removing the upper cover;

[0050] Figure 3b is Figure 3a a partial view of;

[0051] Figure 4 Explosion schematic diagram of the cleaning robot structure provided by an embodiment of the present application;

[0052] Figure 5 Explosion diagram of the mopping and washing component provided by an embodiment of the present application;

[0053] Figure 6 Schematic diagram of the mopping and washing component provided by an embodiment of the present application being arranged on the cavity shell;

[0054] Figure 7a External structure view of the mopping and washing component provided by an embodiment of the present application;

[0055] Figure 7b Shows a specific implementation structure schematic diagram of the liquid supply mechanism in the embodiment of the present application;

[0056] Figure 8 Bottom view of a mopping bracket provided by an embodiment of the present application;

[0057] Figure 9a Explosion diagram of the mopping and washing component provided by an embodiment of the present application;

[0058] Figure 9b Cross-sectional view of the mopping and washing component provided by an embodiment of the present application;

[0059] Fig.10a Schematic diagram of the state of a cleaning robot performing edge cleaning provided by an embodiment of the present application;

[0060] Fig.10b Comparison schematic diagram of two situations where the mopping and washing component extends and does not extend when the cleaning robot provided by an embodiment of the present application performs a cleaning task;

[0061] Fig.11 Schematic diagram of a mopping and washing component in a lifted state provided by an embodiment of the present application;

[0062] Fig.12 Schematic diagram of a mopping and washing component in an extended state provided by an embodiment of the present application;

[0063] Fig.13 Schematic diagram of the structure of a driving device provided by an embodiment of the present application;

[0064] Fig.14 Stereogram of an action execution mechanism provided by an embodiment of the present application;

[0065] Fig.15 Another perspective stereogram of an action execution mechanism provided by an embodiment of the present application;

[0066] Fig.16Schematic diagram of the half-section structure of a mopping and washing component provided by an embodiment of the present application;

[0067] Fig.17 Schematic diagram of the partial structure of an action execution mechanism provided by an embodiment of the present application;

[0068] Fig.18 Schematic diagram of a slider structure provided by an embodiment of the present application;

[0069] Fig.19 Partial sectional view of an action execution mechanism provided by an embodiment of the present application;

[0070] Fig.20a Partial sectional view of the combination of a cavity shell and a shell cover provided by an embodiment of the present application;

[0071] Fig.20b Schematic diagram of the structure of a shell cover provided by an embodiment of the present application;

[0072] Fig.21 Schematic diagram of the setting positions of the grating structure and the fourth photoelectric switch in the cleaning robot provided by an embodiment of the present application;

[0073] Fig. 22 Schematic diagram of the structure in which a first connection end and a second connection end for connecting an elastic member are respectively arranged on a sliding plate and a slider in an embodiment of the present application;

[0074] Fig.23 Schematic diagram of the structure in which a hovering surface is arranged at the top end of the lifting part;

[0075] Fig.24 Schematic diagram of the structure in which a mopping and washing component is lifted relative to the ground provided by an embodiment of the present application;

[0076] Fig.25 Front view of another mopping and washing component provided by an embodiment of the present application;

[0077] Fig.26 Sectional view of another mopping and washing component provided by an embodiment of the present application;

[0078] Fig.27a Stereogram of another mopping and washing component in the initial state provided by an embodiment of the present application;

[0079] Figure 27b Front view of another mopping and washing component in the initial state provided by an embodiment of the present application;

[0080] Fig.27c Sectional view of another mopping and washing component in the initial state provided by an embodiment of the present application;

[0081] Fig.28aAnother perspective view of the mopping and washing assembly in the lifted state provided by the embodiments of the present application;

[0082] Fig.28b Another front view of the mopping and washing assembly in the lifted state provided by the embodiments of the present application;

[0083] Fig.28c Another sectional view of the mopping and washing assembly in the lifted state provided by the embodiments of the present application;

[0084] Fig.29a Another perspective view of the mopping and washing assembly in the extended state provided by the embodiments of the present application;

[0085] Fig.29b Another front view of the mopping and washing assembly in the extended state provided by the embodiments of the present application;

[0086] Fig.29c Another sectional view of the mopping and washing assembly in the extended state provided by the embodiments of the present application;

[0087] Fig.30 A perspective view of a mopping bracket provided by the embodiments of the present application;

[0088] Fig.31 A perspective structural view of a sliding plate provided by the embodiments of the present application;

[0089] Fig.32 A perspective structural view of a rotating bracket provided by the embodiments of the present application;

[0090] Fig.33 A perspective structural view of the cavity housing corresponding to another mopping and washing assembly provided by the embodiments of the present application;

[0091] Fig.34 A sectional view of a mopping and washing assembly provided by the embodiments of the present application;

[0092] Fig.35a A sectional view of a mopping bracket provided by the embodiments of the present application;

[0093] Fig.35b A schematic diagram showing that the front side of the dirt collection box in a mopping and washing assembly has an oblique angle provided by the embodiments of the present application;

[0094] Fig.35c A schematic structural view of a cleaning robot provided by the embodiments of the present application;

[0095] Fig.36a and 36b shows a comparative schematic diagram of the dirt collection box being arranged on the front side and the rear side of the cleaning roller;

[0096] Fig.37Another cross-sectional view of the mopping and washing component provided by the embodiment of the present application;

[0097] Fig.38 Another perspective cross-sectional view of the mopping and washing component provided by the embodiment of the present application;

[0098] Fig.39a An exploded view of a scraper assembly provided by the embodiment of the present application;

[0099] Fig.39b A cross-sectional schematic diagram of the water guide plate provided by the embodiment of the present application;

[0100] Fig.39c A schematic structural diagram of the adaptive adjustment device provided on the cleaning robot according to the embodiment of the present application;

[0101] Fig.40 A three-dimensional structure diagram of a scraper assembly provided by the embodiment of the present application;

[0102] Fig.41 A schematic implementation structure diagram of another driving device provided by an embodiment of the present application;

[0103] Fig.42 Shows in Fig.41 Schematic diagrams of two states of the mopping and washing component rising and extending driven by the driving device with the structure shown;

[0104] Fig.43 A schematic implementation structure diagram of yet another driving device provided by an embodiment of the present application;

[0105] Fig.44a A schematic diagram of the mopping and washing component exposed on one side of the body in the cleaning robot provided by an embodiment of the present application;

[0106] Figure 44b A schematic diagram of the sewage collection box removed from the mopping and washing component provided by the embodiment of the present application;

[0107] Fig.44c A schematic diagram of the release component in the locked state provided by the embodiment of the present application;

[0108] Fig.44d A schematic diagram of the release component in the unlocked state provided by the embodiment of the present application;

[0109] Figure 44e A schematic diagram of the process of removing the sewage collection box provided by the embodiment of the present application;

[0110] Figure 44f An exploded schematic diagram of the sewage collection box, the release component and the filter component provided by the embodiment of the present application. Detailed implementation manners

[0111] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are merely for explaining the present application and not for limiting the present application. Additionally, it should be noted that for the sake of description, only parts related to the present application rather than all structures are shown in the drawings. In the description of the present application, unless otherwise clearly specified and defined, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. In the present application, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above and to the right of", and "on top of" the second feature includes the first feature being directly above and diagonally above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below and to the left of", and "beneath" the second feature includes the first feature being directly below and diagonally below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature. In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0112] Currently, the bodies of many cleaning robots are circular. The circular body is relatively flexible and easy to get out of trouble. When a dust suction roller 01 and a mopping roller 02 are both provided on the cleaning robot, generally the dust suction roller 01 is located in front of the roller 02, so that the cleaning robot can vacuum first and then mop during movement. Due to the circular shape of the cleaning robot, for the need of avoiding obstacles and getting out of trouble during movement, the driving wheels are generally arranged at the maximum width position perpendicular to the forward direction, and the roller is generally placed behind the driving wheels, and the whole does not protrude beyond the projection of the circular body on the ground. This results in a shorter roller at the relatively rear part of the body, and the distance from the end of the roller to the outermost edge in the width direction of the body is relatively far, as Figure 1a shown. When the cleaning robot is to clean along the wall or wardrobe, etc., after maintaining the minimum safe distance from the object such as the wall or wardrobe, in the corner area with a relatively large dimension d of the object, the cleaning robot cannot mop. To solve this problem, some cleaning robots are designed with a retractable roller structure.

[0113] In order to make the functions of the cleaning robot more comprehensive, the rollers of some cleaning robots are designed to be retractable. When the roller extends, it can clean along the wall or clean around obstacles. However, after the roller extends, although some robots can ensure the supply of clean water, the squeegee is still inside the body. That is to say, only the extended part of the roller can receive clean water, and the dirt always remains on the roller and cannot be scraped off. The roller cannot be cleaned, and there is still a problem of smearing similar to that of the mop plate, resulting in poor cleaning effect.

[0114] As Figure 1b shown, the extension of the roller allows the roller to reach the corner area, improving the coverage rate. However, when only the roller extends, the roller will be attached with dirt during the cleaning process and will become dirtier and dirtier. The corner area (such as the area with the edge width d in Figure 1a ) will not achieve good cleaning effect, but will become dirtier and dirtier as it is dragged.

[0115] To make the roller have a good cleaning effect after extension, the roller needs to be self-cleaned in a timely manner when it is in the extended state. When the roller brush contacts the ground for mopping, it can have a good cleanliness and there will be no problem of smearing.

[0116] In the prior art, some cleaning robots with rollers have solutions where a single roller or the roller and the liquid supply mechanism can extend along the edge for cleaning or cleaning along the edge of an obstacle. However, these robots only extend the roller when they need to clean along the edge or clean around an obstacle, and in most of the cleaning process, the roller is in the initial position within the projected area of the main body. For a floor sweeper with the initial position of the roller within the projected area of the main body, when performing edge cleaning or cleaning around a target, the robot controls the roller to extend according to the distance threshold from the edge and the target. When there is an obstacle at the edge or target position, the robot controls the roller to retract inward according to the threshold of the distance from the obstacle. That is to say, if the environment at the edge or target position is complex and there are many obstacles, the distance of the robot is between the distance threshold from the edge and the target and the distance threshold from the obstacle. The controller of the robot needs to continuously receive and calculate the thresholds and frequently perform extension, retraction, and re-extension actions, seriously wasting the computing power of the robot and affecting the reliability of the extension and retraction drive device. In addition, for a floor sweeping robot that selects the roller as the mopping unit, there is a certain distance between the maximum width positions on both sides of the roller and the walking direction of the robot. This distance is a cleaning blind area during traversal. When the robot traverses, a robot with the initial position within the projected area of the main body has two blind areas. When the roller extends from one side to a position parallel to or exceeding the maximum width position of the robot's walking direction, the robot only has one blind area. That is to say, if the robot with the roller in the extended state normally performs traversal, the coverage of the traversal blind area will be simpler.

[0117] Each embodiment of the present application provides a cleaning robot. The cleaning unit of the cleaning robot is retractable, and it can ensure that there is a continuous supply of cleaning water at any position of the cleaning unit. The scraper can also continuously act to scrape the dirt on the cleaning unit, so that the cleaning unit can clean and self-clean while extending to any position. If the rag solution in the prior art: continuously supplying cleaning liquid to the rag, the rag cleans the ground, and the rag cannot be cleaned during work, is called dead water cleaning. Then the solution provided by the embodiments of the present application can be called live water cleaning, that is, when the cleaning unit works (i.e., mopping the ground), there is a continuous supply of active cleaning liquid, and the cleaning unit can be continuously decontaminated and cleaned by the decontamination mechanism. After the cleaning unit is decontaminated, clean cleaning liquid is replenished, so that the cleaning unit can maintain a high cleanliness for a long time, thereby improving the cleaning degree of the cleaning robot for the ground.

[0118] In each embodiment of the present application, the cleaning unit may be, but is not limited to: a cleaning roller, a track-type cleaning member, etc. Among them, the cleaning roller may be a cylindrical roller, that is, the surface of the cylindrical roller has cleaning fluff. The track-type cleaning member, also called a track-type roller, includes two track wheels arranged at intervals, and a track-shaped wiping cloth in the shape of an annular runway is sleeved on the two track wheels. The outer side of the track-shaped wiping cloth has cleaning fluff. One side of the track-shaped wiping cloth contacts the ground. As the track wheels rotate, the track-shaped wiping cloth will move relative to the ground, so as to realize mopping the ground. In addition, the cleaning unit is driven by a cleaning unit motor. If the cleaning unit is a cleaning roller, the corresponding cleaning unit motor can be called a roller motor, and the cleaning roller is driven by the roller motor to rotate to mop the ground. If the cleaning unit is a track-type roller, the corresponding cleaning unit motor can be called a pulley motor, and the pulley motor drives the track to rotate to drive the track-shaped wiping cloth to move to mop the ground.

[0119] Before introducing the mopping assembly and the driving device provided by the embodiments of the present application, the structure of the cleaning robot will be briefly introduced. In the following embodiments, the cleaning unit is taken as an example of a cleaning roller for illustration.

[0120] See Figure 2 、 3a As shown in and 4, the cleaning robot includes, but is not limited to: a body 1, a vacuum cleaning system 3, a mopping system, a traveling system 8, a sensing system 640, a control system, and a side brush assembly 7. Among them, the vacuum cleaning system 3, the mopping system, the traveling system 8, the sensing system 640, and the control system are all arranged on the body 1. As Figure 3a shown, the vacuum cleaning system 3 may include, but is not limited to: a dust box 301, a vacuum fan 302, a roller brush (not shown in the figure), etc. The control system includes a hardware part and also includes a software part. The hardware part is such as a main board 2, as Figure 4As shown. The main board may be provided with a processor, a storage medium (such as a memory), etc. The software part is the computer program stored in the storage medium. The processor executes these computer programs to control the components of the cleaning robot, so that the cleaning robot has corresponding functions, such as mapping, path planning, obstacle recognition, cleaning around obstacles, edge cleaning, returning to the base station and completing docking, area recognition, cleaning mode switching (only vacuuming, only mopping, or vacuuming first and then mopping), etc. The traveling system 8 may include drive wheels and drive wheel motors; the drive motor outputs corresponding power under the control of the main board 2 to drive the drive wheels to rotate, so as to realize the forward, backward, stop, turning, etc. of the cleaning robot. Further, the traveling system 8 may further include a caster wheel, which is a follow-up wheel and may be arranged at the front part of the body 1. The side brush assembly 7 may be one or two. As Figure 2 In the example shown, one side brush assembly 7 is arranged on one side (such as the right side) of the front part of the body 1. If there are two side brush assemblies 7, the two side brush assemblies may be respectively arranged on both sides of the front part of the body 1 (such as one on each of the left and right sides).

[0121] In the control system in the embodiment of the present application, a control device may be included, and the main board mentioned above may be called a control device.

[0122] The mopping system may include, but is not limited to: a clean water tank 5, a sewage tank 9, a mopping assembly 4, etc. As Figure 5 As shown, the mopping assembly 4 may include, but is not limited to: a roller motor 41, a cleaning roller 42, a liquid supply mechanism 45 and a decontamination mechanism 44. Among them, the roller motor 41 is used to drive the cleaning roller 42 to rotate. The liquid supply mechanism 45 is communicated with the clean water tank 5 through a clean water pipe. The decontamination mechanism 44 is communicated with the sewage tank 9 through a sewage pipe. The cleaning robot further includes a driving device 10, which is arranged on the body 1 and is connected to the mopping assembly. As Figure 6 As shown, along the width direction of the body 1, the driving device 10 can drive the mopping assembly 4 relative to the body 1 to extend from at least one side of the body 1 so that part of the mopping assembly is exposed. Figure 6 In the reference coordinate system, the X direction is the width direction of the body; the Y direction is the traveling direction of the cleaning robot.

[0123] It should be supplemented and explained here that: from the components included in the mopping assembly 4, it can be seen that the mopping assembly 4 in this embodiment can mop the object to be cleaned (such as the ground), and at the same time can realize the self-cleaning function by using its own liquid supply mechanism 45 and decontamination mechanism 44 to maintain a good cleanliness of the cleaning roller.

[0124] As can be seen from the above, in the solution provided by the embodiments of the present application, the driving device 10 can drive the entire mopping and washing assembly to move relative to the body, so as to extend a part outside the body. That is to say, no matter where the mopping and washing assembly 4 is located, the liquid supply mechanism 45 can supply cleaning liquid to the cleaning roller, the dirt removal mechanism 44 can scrape the dirt on the cleaning roller 42, and the cleaning roller 42 can self-clean while working. When the cleaning roller 42 extends outwards for edge cleaning, the cleaning roller 42 will not be overly soiled, and can still have a good cleaning effect after long-term cleaning, providing a better user experience.

[0125] In fact, the mopping and washing assembly 4 in this embodiment can also be in an extended state normally. For example, when the cleaning robot is started, the main board 2 controls the driving device 10 to drive the mopping and washing assembly 4 to move relative to the body, so as to extend a part from one side of the body 1 and be in an extended state. When the cleaning robot is performing a cleaning task and traversing the area to be cleaned, the mopping and washing assembly 4 remains in the extended state. If the cleaning robot encounters an obstacle or passes through a narrow space, the main board 2 controls the driving device 10 to drive the mopping and washing assembly 4 to retract, so as to hide inside the body 1, facilitating obstacle avoidance or passing through a narrow space. When the cleaning roller 42 is in the extended state, the outer edge of the cleaning roller 42 can be flush with the widest edge of the body 1, or the outer edge of the cleaning roller 42 can extend beyond the widest edge of the body 1.

[0126] As Figure 5 shown in the example, the mopping and washing assembly 4 further includes a mopping and washing bracket 43; the mopping and washing bracket 43 has a drum installation cavity with an opening facing downwards. The drum motor 41 and the cleaning roller 42 are arranged in the drum installation cavity. The cleaning roller 42 contacts the surface to be cleaned through the opening; the liquid supply mechanism 45 and the dirt removal mechanism 44 are both arranged on the mopping and washing bracket 43; the power end of the driving device 10 is connected to the mopping and washing bracket 43.

[0127] Specifically, the mopping and washing bracket 43 has a first opening facing downwards and a second opening on the side. The lower part of the cleaning roller 42 passes through the first opening to contact the surface to be cleaned. The cleaning roller 42 can be detached through the second opening, and the second opening is on the same side as the position on the body 1 where the mopping and washing assembly extends. For example, when the user wants to clean or replace the cleaning roller, the user can see the cleaning roller 42 at the position on the body 1 where the mopping and washing assembly extends, and then detach the cleaning roller 42 at the second opening. During installation, the cleaning roller 42 can be inserted through the second opening. After the end of the cleaning roller 42 is connected to the drum motor 41, the other end of the cleaning roller 42 is connected at the second opening. That is, the disassembly and assembly direction of the cleaning roller 42 is along the axis direction of the cylinder.

[0128] See Figure 3a As shown, a fresh water tank 5 is provided on the body 1 of the cleaning robot. As Figure 7b shown, the mopping and washing bracket 43 further has a drum bracket 421. The liquid supply mechanism 45 can be arranged on the drum bracket 421. Figure 7b An implementable structure of the liquid supply mechanism 45 is shown. The liquid supply mechanism 45 includes a water distributor 452. The water distributor 452 has a main path, a plurality of branch paths, and a plurality of liquid supply ports 453 (as Figure 8 shown). The plurality of liquid supply ports 453 face the cleaning roller 42 and are distributed along the cylinder axis of the cleaning roller 42. The main path of the water distributor 452 is connected to the clean water tank 5 through a first flexible pipe 443. One end of the first flexible pipe 443 is connected to the water supply port 451 of the main path, and the other end is connected to the clean water tank 5. The plurality of branch paths communicate with the main path, and the plurality of liquid supply ports correspond to the plurality of branch paths respectively.

[0129] As Figure 5 shown, the dirt removal mechanism 44 includes a scraping strip 441 and a dirt collection box 442. The end of the scraping strip 441 contacts the cleaning roller 42, and the dirt collection box 442 is located below the scraping strip 441. When the cleaning roller 42 rotates, the dirt scraped by the scraping strip 441 enters the dirt collection box 442. As Figure 1c shown, the bottom surface of the dirt collection box 442 can be higher than the bottom surface of the machine body 1 by m, such as 1 mm to 5 mm.

[0130] The disassembly and assembly direction of the cleaning roller 42 is the same as the cylinder axis direction. The disassembly direction of the dirt collection box 442 can be different from the disassembly direction of the cleaning roller 42. For example, the disassembly direction of the dirt collection box 442 can be perpendicular to the disassembly direction of the cleaning roller 42. Since the cleaning roller 42 and the dirt collection box 442 are both arranged on the first opening provided downward by the mopping bracket 43 and are relatively close, the inventor found that if the disassembly directions of the two are the same, the positioning devices of the cleaning roller 42 and the dirt collection box 442 may interfere with each other, and when a single component is disassembled, they may come into contact, rub against each other, or even drive the other component to move. Therefore, in this solution, the disassembly direction of the dirt collection box 442 can be perpendicular to the disassembly direction of the cleaning roller 42, ensuring separation in the fixing method and non-interference in disassembly. And with the downward disassembly method of the dirt collection box, the user only needs to lift the tail of the cleaning robot to see the dirt collection box and conveniently take it out downward, eliminating the risk of pouring out the dirt in the dirt collection box. The content related to the disassembly and assembly of the dirt collection box 442 is described in detail below, and reference can be made to the following content.

[0131] Refer to Figure 3a , a sewage tank 9 is provided on the machine body 1. Correspondingly, as Figure 3b and Figure 9aIn an implementation solution shown, the squeegee 441 has an avoidance hole 446, and a sewage collection pipe 542 is provided at the avoidance hole 446. One end of the sewage collection pipe 542 communicates with the avoidance hole 446, and the other end communicates with the sewage collection box 442. The sewage collection box 442 communicates with the sewage tank 9 through a second flexible pipe 456. The dirt scraped off from the cleaning roller 42 by the squeegee 441 enters the sewage collection pipe 542 through the avoidance hole 446, and enters the sewage collection box 442 through the sewage collection pipe 542. In a specific implementation, the decontamination mechanism 44 may further include a sewage pump (not shown in the drawings), and the sewage pump is used to pump the dirt in the sewage collection box 442 into the sewage tank 9 through the second flexible pipe 456. Wherein, the sewage pump can work regularly to pump away the dirt in the sewage collection box 442; it can also be started to work when the dirt volume in the sewage collection box 442 reaches a threshold value to pump away the dirt in the sewage collection box 442, and this embodiment does not limit this. As Figure 3b shown, the second flexible pipe 456 further includes a second end pipe 457. The length of the second end pipe 457 remains unchanged. One end of it is connected to the sewage pump 471, and the other end is connected to the sewage tank 9.

[0132] See Figure 3b 、 Figure 7a 、 Figure 8 and Figure 9a , in an embodiment provided by the present application, the clean water tank 5 communicates with the liquid supply mechanism 45 through a first flexible pipe 443. The cleaning liquid stored in the clean water tank 5 can be transported to the liquid supply mechanism 45 through the first flexible pipe 443, and the liquid supply mechanism 45 then supplies the cleaning liquid to the cleaning roller 42. The sewage tank 9 communicates with the decontamination mechanism 44 through a second flexible pipe 456. The sewage collected by the decontamination mechanism 44 can be transported to the sewage tank 9 through the second flexible pipe 456. When the mopping and washing assembly 4 moves outwards, the first flexible pipe 443 and the second flexible pipe 456 will move together with the mopping and washing assembly 4, and the bent first flexible pipe 443 and the bent second flexible pipe 456 will gradually elongate. The first flexible pipe 443 always keeps the liquid supply mechanism 45 in communication with the clean water tank 5, and the second flexible pipe 456 always keeps the decontamination mechanism 44 in communication with the sewage tank 9.

[0133] See Figure 7a and Figure 7b , the liquid supply water inlet 451 is connected to the first flexible pipe 443, and the decontamination water outlet 4410 is connected to the second flexible pipe 456. The liquid supply water inlet 451 and the decontamination water outlet 4410 extend from above the mopping and washing bracket 43 to be connected to the first flexible pipe 443 and the second flexible pipe 456 respectively. See Figure 6 , the first flexible pipe 443 and the second flexible pipe 456 are arranged horizontally (i.e., in the negative X-axis direction in the figure) below the cavity shell 46, and then from Figure 6It comes out upward from the empty space 03 therein to be connected to the clean water tank 5 and the sewage tank 9 on the body 1. Refer to Figure 6 , a pipeline space for accommodating the first flexible pipeline 443 and the second flexible pipeline 456 is arranged beside the empty space 03. Since the mopping component 4 is to move relative to the cavity shell 46 in the positive and negative X-axis directions, the first flexible pipeline 443 and the second flexible pipeline 456 can deform along with the movement of the mopping component 4 to provide cleaning liquid for the cleaning roller and can discharge the dirt in the sewage collection box in real time.

[0134] To avoid bending, springs (not shown in FIGS. 9 and Fig.38 ) can be arranged on the outer sides of the first flexible pipeline 443 and the second flexible pipeline 456, so that there will be no bending blockage during the overall movement (lifting and / or telescoping) of the mopping component 4, which affects sewage discharge and liquid supply. In a specific embodiment, the first flexible pipeline 443 and the second flexible pipeline 456 are respectively elastic pipelines. When the mopping component 4 extends outwards, the first flexible pipeline 443 and the second flexible pipeline 456 will be stretched and extended and / or bent. When the mopping component 4 retracts, the first flexible pipeline 443 and the second flexible pipeline 456 will contract and become shorter and / or bent. In another embodiment, the first flexible pipeline 443 and the second flexible pipeline 456 can also be bendable plastic pipes. When the mopping component 4 is in the retracted state, the first flexible pipeline 443 and the second flexible pipeline 456 are in the bent state, but the first flexible pipeline 443 and the second flexible pipeline 456 are not in the blocked state. In this bent state, both flexible pipelines are unobstructed. When the mopping component 4 extends outwards, the bent first flexible pipeline 443 and the second flexible pipeline 456 move along with it and gradually extend, so as to ensure that the connection of the pipelines is not interrupted.

[0135] The cleaning robot provided by an embodiment of the present application has a mopping component 4 that can telescopically move relative to the body 1. When the body 1 is on the ground to perform the mopping task, the cleaning roller 42 in the mopping component 4 contacts the ground. Or rather, the cleaning roller 42 not only contacts the ground but also has a certain pressure on the ground, which helps to improve the cleaning effect of the cleaning roller on the ground. As Figure 3a shown, a receiving cavity 101 is arranged at the bottom of the body 1, and the mopping component 4 is arranged in the receiving cavity 101. The receiving cavity 101 extends along the width direction of the body 1. At least one end of the receiving cavity 101 is open in the width direction of the body 1.

[0136] It should be noted that Figure 1b the direction of the arrow X in

[0137] Figure 3a the example shown can be considered as the length direction of the mopping component 4 or the width direction of the body 1. Figure 3aFrom this perspective, one end of the accommodation cavity 101 on the right side of the body 1 is open. The mopping and washing assembly 4 can extend out through the open opening at the open end to expose a part outside the body 1. In a specific implementation, both ends of the accommodation cavity 101 are open. In this case, the mopping and washing assembly 4 can extend out from the opening on the right side of the body 1 or from the opening on the left side of the body 1. The cleaning robot can control the mopping and washing assembly 4 to extend out on the corresponding side according to the actual scenario requirements.

[0138] The extension of the mopping and washing assembly 4 can be driven by the driving device 10. When the mopping and washing assembly 4 extends outwards, as viewed from the top view of the cleaning robot (as Fig.10a shown), the outermost edge of the mopping and washing assembly 4 extends outwards beyond the edge of the body 1. Therefore, when the body 1 of the cleaning robot maintains a safe distance from the edges of objects such as the edge of a wall or the edge of furniture, the cleaning roller 42 can achieve edge cleaning of the object. Of course, in an open space, the cleaning roller 42 can also extend out, such as Fig.10a in the state shown, to perform the cleaning task. In a specific embodiment, Fig.10a the dashed box E in shows a schematic diagram of the mopping and washing assembly 4 in the retracted state (initial state), and the solid box F shows a schematic diagram of the mopping and washing assembly 4 extending outwards or swinging outwards. When the cleaning robot performs edge cleaning along the edge of an object, the edge of the body 1 of the cleaning robot maintains a safe distance from the edge of the object, and the distance that the mopping and washing assembly 4 extends outwards relative to the edge of the body 1 is D, and the value range of D is [10 mm to 0 mm], for example, 5 mm. Of course, in order to prevent the outer edge of the mopping and washing assembly 4 from directly colliding or scratching the edge of the object, there is also a safe distance between the outer edge of the mopping and washing assembly 4 and the edge of the object, and this safe distance is d, and the value range of d is [10 mm to 1 mm], for example, 2 mm. The moving stroke of the mopping and washing assembly 4 relative to the body 1 can be 40 - 60 mm, such as an extension stroke of 50 mm.

[0139] The driving device 10 can drive the mopping and washing assembly 4 to extend outwards from the lateral opening of the accommodation cavity 101. For the retraction of the mopping and washing assembly 4, it can be retracted under the drive of the driving device 10. Or, the retraction of the mopping and washing assembly 4 is not driven by the driving device 10, and it can be through the cavity shell 46 (such as Figure 6It retracts under the drive of an elastic member provided between it (as shown) and the mopping assembly 4. For example, when the drive device 10 drives the mopping assembly 4 to extend outward, the elastic member provided between the cavity housing 46 and the mopping assembly 4 deforms (such as being compressed). When the mopping assembly 4 needs to retract, the drive device 10 is decoupled from the mopping assembly 4, and the mopping assembly 4 is driven to retract under the action of the restoring force of the elastic member. Of course, this is only one embodiment provided by the present application. In other embodiments, the extending action and the retracting action of the mopping assembly 4 are both driven by the drive device 10. Here, it should be added that: the cavity housing 46 can be understood as a part of the bottom wall of the base of the body 1 of the cleaning robot, and this part of the bottom wall forms the accommodation cavity 101. Or, a cavity housing 46 as shown in Figure 6 is provided on the base of the body 1.

[0140] The structure of the cleaning robot provided by the embodiments of the present application has been briefly introduced above. Next, the structure of the mopping assembly in the present application, the structure for realizing the telescopic function of the mopping assembly (i.e., the specific implementation of the drive device), etc. will be described in more detail. The solutions provided by the embodiments of the present application focus on the mopping assembly 4. The mopping assembly 4 can extend out from at least one side of the body of the cleaning robot relative to the body of the cleaning robot, so that a part of the mopping assembly 4 is exposed, so that the mopping assembly 4 can maintain good cleanliness by self-cleaning at any position. Next, the telescopic function of the mopping assembly 4 will be described in detail. There are various structures for realizing the telescopic function of the mopping assembly, which will be introduced one by one below.

[0141] Refer to Figure 6 and Figure 11 to Figure 12 . In an embodiment of the present application, a drive device 10 is provided. The drive device 10 includes: a first power source 102 and a first motion execution mechanism 103. The first motion execution mechanism 103 includes a power access end and a power output end. The power access end is connected to the first power source 102. The first motion execution mechanism 103 is used to convert the rotational power output by the power source into linear power, and the power output end is connected to the mopping assembly 4.

[0142] The first power source 102 may include, but is not limited to: a first motor and a speed reducer. The first motion execution mechanism 103 may include, but is not limited to: a first gear 13 and a first rack 14. Specifically, in the initial position of the first motion execution mechanism 103, as shown in the example of Fig.13 , relative to the first gear 13, most of the teeth of the first rack 14 are located on the left side of the first gear 13. This state can be called the rack being in the origin position. At this time, the mopping assembly 4 is in the initial state, that is, the state shown in Fig.11 . From the perspective of the overall cleaning robot, in the Fig.11 state, the mopping assembly 4 is hidden inside the body 1. When the mopping assembly 4 needs to extend, the first motor of the first power source 102 rotates forward (from Fig.13When viewed from this angle, the first motor outputs power in the counterclockwise direction to drive the first rack 14 to move in the first direction ( Fig.13 the direction of arrow X in the figure). Fig.12 The figure shows a schematic diagram of the mopping component 4 in the extended state. When the mopping component 4 needs to retract, the first motor of the first power source 102 reverses (when viewed from Fig.13 this angle, the first motor outputs power in the clockwise direction) to drive the first rack 14 to move in the opposite direction (the second direction) of the first direction.

[0143] Refer to Fig.13 , in an embodiment provided in the present application, at least one slide rail 15 is provided on the cavity shell 46 of the accommodation cavity 101 of the body 1. The first motion execution mechanism 103 further includes a sliding plate, and the first rack 14 can be arranged on the sliding plate. The sliding plate is slidably connected to the slide rail 15. The first power source 102 can be arranged at the installation position of the cavity shell 46, the first gear 13 is arranged on the output shaft of the first power source 102, and the first gear 13 meshes with the first rack 14. After the first power source 102 outputs power, the sliding plate 20 can be driven to slide back and forth on the slide rail 15 through the first gear 13 and the first rack 14. The sliding plate is connected to the mopping component 4 to drive the mopping component 4 to act. In addition, the first rack 14 and the sliding plate 20 can be an integral structure, or the first rack 14 and the sliding plate 20 can be fixedly connected.

[0144] As mentioned above, the sliding plate is arranged on the upper surface of the cavity shell 46. Refer to Fig.16 , the mopping component 4 is provided with a connecting column 241, and the mopping component 4 is connected to the sliding plate through the connecting column 241. In order to avoid interference between the connecting column 241 and the cavity shell 46, corresponding to the moving range of the connecting column 241, a slot hole 27 is provided on the cavity shell 46 (as shown in Fig.14 ), and the connecting column 241 extends above the sliding plate 20 through the slot hole 27 and the through hole 23 on the sliding plate 20. The length of the slot hole 27 is greater than or equal to the maximum moving distance of the mopping component 4.

[0145] Furthermore, as shown in Fig.20a and 20bAs shown, the body 1 includes a housing cover 47, and the housing cover 47 can be cooperatively connected above the cavity housing 46. When the housing cover 47 is cooperatively connected with the cavity housing 46, a hollow cavity is formed, and the driving device 10 (i.e., the first power source 102 and the first action execution mechanism 103) is located in the hollow cavity. The housing cover 47 can not only provide effective protection for the driving device 10 to prevent garbage and foreign objects from entering and affecting the normal operation of the driving device 10. In addition, a mating groove 471 is provided on the bottom surface of the housing cover 47, and the top end of the second baffle 26 contacts the mating groove 461. During the sliding process of the sliding plate, the top end of the second baffle 26 can slide in the mating groove 461. The housing cover 47 can limit the second baffle 26, effectively preventing the sliding plate 20 from moving upward or bulging.

[0146] In this embodiment, the mopping and washing assembly 4 can be telescopic relative to the body 1, and the mopping and washing assembly 4 can have a first limit position in the retracted state and a second limit position in the extended state. In addition, the mopping and washing assembly 4 can also stop at the first limit position and the second limit position to work at any position between the first limit position and the second limit position to adapt to various working scenarios. The main board 2 of the cleaning robot can determine the target position of the mopping and washing assembly relative to the body based on the information detected by the sensing system 640; then control the driving device to drive the mopping and washing assembly to move to the target position. The main board 2 can control the driving device to enable the mopping and washing assembly to stop and work at any position.

[0147] To further improve the control accuracy, multiple detection units are added in this embodiment to detect the position information of the mopping and washing assembly 4 relative to the body 1, facilitating the corresponding control of the main board of the cleaning robot. As Fig.13 shown in the example, multiple detection units can be arranged on the cavity housing 46. Multiple detection units can be respectively arranged at multiple positions within the stroke range of the mopping and washing assembly 4, for example, the first limit position in the retracted state, the second limit position in the extended state, and at least one intermediate position between the first limit position and the second limit position. The detection unit can include but is not limited to: photoelectric switch, microswitch, Hall element, etc. Multiple detection units can include a first detection unit and a second detection unit. The first detection unit can be located at the first limit position where the mopping and washing assembly 4 is in the retracted state, and the second detection unit can be located at the second limit position where the mopping and washing assembly 4 is in the extended state. Taking the detection unit as a photoelectric switch as an example, as Fig.13, on the cavity housing 46, there are provided: a first photoelectric switch 281 and a second photoelectric switch 282. These two photoelectric switches are respectively arranged at different positions on the cavity housing 46. For example, the first photoelectric switch 281 and the second photoelectric switch 282 are respectively located at the first limit position when the mopping and washing assembly 4 is in the retracted state and the first limit position when it is in the extended state. The first photoelectric switch 281 and the second photoelectric switch 282 can be on the same side of the first motion execution mechanism 103, or on different sides. Of course, at least one photoelectric switch for detecting the intermediate position can also be provided between the first photoelectric switch 281 and the second photoelectric switch 282.

[0148] Correspondingly, a triggering structure can be provided on the first motion execution mechanism 103. When the first photoelectric switch 281 and the second photoelectric switch 282 can be on the same side of the first motion execution mechanism 103, only one triggering structure needs to be provided. If the first photoelectric switch 281 and the second photoelectric switch 282 are respectively located on both sides of the first motion execution mechanism 103, then two triggering structures need to be provided on the first motion execution mechanism 103. As shown in Fig. 14, a first triggering structure 291 and a second triggering structure 292. More specifically, the first triggering structure 291 and the second triggering structure 292 can be arranged on the sliding plate in the first motion execution mechanism 103. When the mopping and washing assembly 4 is at the first limit position in the retracted state, the first triggering structure 291 triggers the first photoelectric switch 281. When the mopping and washing assembly 4 moves along Fig.23 the arrow X direction in the figure to the second limit position in the extended state, the second triggering structure 292 can trigger the second photoelectric switch 282, indicating that the mopping and washing assembly 4 extends out to the farthest distance.

[0149] Although the second triggering structure 292 and the second photoelectric switch 282 can detect whether the mopping and washing assembly 4 reaches the second limit position in the extended state, and the main board can control the first power source 102 to stop working based on the triggering signal of the second photoelectric switch 282 to make the mopping and washing assembly 4 stop at the second limit position. However, for the sake of safety, a limiting structure can also be provided on the cavity housing 46. When the sliding plate 20 slides to the second limit position, the first motion execution mechanism 103 abuts against the limiting structure (more specifically, the sliding plate of the first motion execution mechanism 103 abuts against the limiting structure).

[0150] As mentioned above, when the mopping and washing assembly 4 extends outwards, it has multiple gears. At different gears, the position of the mopping and washing assembly 4 relative to the body is different. Of course, it can also be said that at different gears, the distance that the mopping and washing assembly extends outwards is different. Refer to Fig.13 , Fig.14 and Fig.21, in order to achieve precise gear adjustment, the solution provided in this embodiment may further include a fourth detection unit and a fourth trigger structure. Among them, the fourth detection unit may be a fourth optoelectronic switch, a fourth microswitch or a fourth Hall element. Taking the fourth detection unit as the fourth optoelectronic switch and the fourth trigger structure as the grating structure as an example. A fourth optoelectronic switch 284 is further provided on the cavity housing 46, and a grating structure 294 is provided on the first motion execution mechanism 103. The length of the grating structure 294 is equal to or less than the maximum stroke of the mopping assembly 4. When performing gear adjustment, the fourth optoelectronic switch 284 can accurately detect the counting scale on the grating structure 294, so as to determine the gear at which the mopping assembly 4 extends outwards.

[0151] The implementation process of the driving device 10 will be described in detail below in combination with the usage scenario.

[0152] Scenario 1: When the cleaning robot is performing a cleaning task, the mopping assembly extends. In case of special situations such as encountering an obstacle, the mopping assembly retracts.

[0153] When the cleaning robot is not performing a task, it docks at the base station for replenishment (charging and / or filling with clean water), sewage discharge (such as discharging the garbage in the dust box and / or the sewage in the sewage tank), self-cleaning (cleaning the cleaning roller), etc. The user can start the cleaning robot to perform a cleaning task by touching the control on the base station, or operating the interaction device on the base station, or through the smart device APP, or the control on the cleaning robot, etc. When the cleaning robot is in the base station, the mopping assembly is in the retracted state. When the cleaning robot drives out of the base station and detects that it has driven out of the base station, the main board of the cleaning robot controls the driving device 10 to drive the mopping assembly to extend to a set position. This set position can be the second limit position in the extended state mentioned above, or a position between the first limit position in the retracted state and the second position in the extended state. This embodiment does not make a specific limitation on this. Then, the cleaning robot maintains the posture with the mopping assembly extended at the set position, traverses the area to be cleaned, and cleans the area to be cleaned.

[0154] During the cleaning process of the cleaning robot, when an obstacle is detected by the sensing system, the main board controls the driving device 10 to drive the mopping assembly to retract a certain distance. The "certain distance" retracted here can be calculated by the main board based on the information of the obstacle sensed by the sensing system; or it is the distance for the mopping assembly to retract from the current extended state to the first limit position. After bypassing the obstacle, the main board then controls the driving device to make the mopping assembly extend to continue the cleaning task.

[0155] It should be supplemented and explained here that special situations may include but are not limited to: the user instructs the mopping assembly to retract, passing through a narrow passage, etc.

[0156] Scenario 2: When the cleaning robot is performing a cleaning task, the mopping component is in a retracted state. When edge cleaning is required, the mopping component extends

[0157] The cleaning robot plans a cleaning path according to the map of the area to be cleaned. Assume that the cleaning path is to clean the open area first and then perform edge cleaning, such as cleaning along the wall, cabinet edge, etc. The mopping component of the cleaning robot is in a retracted state (such as the first extreme position), and the open area is cleaned according to the zigzag travel path. After the open area is cleaned, the main board 2 of the cleaning robot controls the driving device to control the mopping component to extend (it can extend a set length or extend to the second extreme position), and perform edge cleaning according to the planned edge path. After the edge cleaning is completed, the cleaning robot retracts the mopping component (such as the first-level position), moves forward to the next area to be cleaned, or returns to the base station for replenishment, sewage discharge, self-cleaning, etc.

[0158] See Fig.16 As shown, the mopping component 4 is floatingly connected to the first motion execution mechanism 103. For example, assume Fig.16 In the state shown, the mopping component 4 is in contact with the ground. Since the mopping component 4 is floatingly arranged, it can float up and down according to the change of the ground when the mopping component travels on an uneven ground. The first motion execution mechanism 103 is connected to the mopping component 4 through the connection component 24. As Fig.16 shown, the connection component 24 may include: a connection column 241 and a slider 242. A connection column 241 is provided above the mopping bracket 43 of the mopping component 4. The first motion execution mechanism 103 includes a slider 242 as Fig.18 shown. An installation hole is provided on the slider 242, and a screw enters the hole of the connection column 241 through the installation hole to connect the slider 242 with the connection column 241. In Fig.16 the state shown, there is a gap between the upper part of the mopping component 4 and the cavity shell 46, and this gap provides space for the mopping component 4 to float up and down.

[0159] In the above text, it is only mentioned that the driving device 10 can drive the mopping component 4 to move in the width direction of the body 1. In fact, in the technical solution provided in this embodiment, the mopping component 4 can not only move in the width direction of the body, but also move up and down. The mopping component moves in the width direction of the body and moves up and down, which can be realized by two driving devices respectively, or can be realized by only one driving device. That is, the driving device 10 can not only drive the mopping component 4 to move in the width direction of the body 1 in the accommodating cavity 101, but also move up and down.

[0160] The mopping and washing assembly 4 is floatingly connected to the cavity housing 46. Within a certain range, the mopping and washing assembly 4 can move up and down vertically within the accommodation cavity 101. The mopping and washing assembly 4 presses the cleaning roller 42 against the ground by its own gravity. When the cleaning roller on the mopping and washing assembly 4 encounters an uneven ground or a raised obstacle, the mopping and washing assembly 4 can move up and down relative to the body 1 of the cleaning robot following the undulation of the ground. Whether the ground is flat or not, the mopping and washing assembly 4 always presses against the ground by its own gravity, with a relatively small and stable force on the ground, thus effectively avoiding an abrupt increase in the force exerted by the mopping and washing assembly 4 on the ground due to the uneven terrain. For some soft-wood floor surfaces, this technical solution can effectively prevent the cleaning roller from scratching or wearing the ground.

[0161] It can be considered that at any position in the width direction of the body 1, the mopping and washing assembly 4 floats relative to the cavity housing 46. The mopping and washing assembly 4 floating relative to the cavity housing means that the mopping and washing assembly 4 floats relative to the body.

[0162] See Figures 13 to 22 , the driving device 10 can move in multiple directions to drive the mopping and washing assembly 4 to lift, lower, extend, and retract relative to the body 1. The driving device 10 includes a first power source 102 and a first motion execution mechanism 103. Specifically, when the first power source 102 outputs power in the first direction, it can drive the mopping and washing assembly 4 to move outwards relative to the body 1 along the Fig.16 X1 direction in Fig.16 , and can also drive the mopping and washing assembly 4 to lift relative to the body 1 along the Fig.16 Z2 direction in Fig.16 . When the first power source 102 outputs power in the second direction, it can drive the mopping and washing assembly 4 to retract relative to the body 1 along the Fig.16 X2 direction in Fig.16 , and can also drive the mopping and washing assembly 4 to lower relative to the body 1 along the Fig.16 Z1 direction in

[0163] . The first direction and the second direction are two different directions. For example, one of the first direction and the second direction can be the clockwise direction and the other can be the counterclockwise direction. Fig.16 The above content can also be understood as that the first motion execution mechanism 103 moves along the Fig.16 X1 direction in Fig.16 , driving the mopping and washing assembly 4 to extend; the first motion execution mechanism 103 moves along the Fig.16 X2 direction in

[0164] , driving the mopping and washing assembly 4 to retract. When the mopping and washing assembly 4 is at the first extreme position and the second extreme position, if the mopping and washing assembly 4 is at a low position, the motion execution mechanism 103 moving along the X2 direction can drive the mopping and washing assembly 4 to lift; if the mopping and washing assembly 4 is at a high position, the motion execution mechanism 103 moving along the X1 direction can drive the mopping and washing assembly 4 to lower. Fig.16The directions of arrows X1 and X2 can be regarded as the length direction of the mopping and washing component, or the width direction of the body 1; Fig.16 The directions of arrows Z1 and Z2 can be regarded as the height direction of the mopping and washing component, or the height direction of the body 1.

[0165] Figure 6 It is a schematic diagram of the first limit position where the mopping and washing component 4 is in the retracted state and in the lowered state. Fig.11 It is a schematic diagram of the first limit position where the mopping and washing component 4 is in the retracted state and in the lifted state. Fig.12 It is a schematic diagram of the second limit position where the mopping and washing component 4 is in the extended state and in the lowered state. The following will introduce the driving device 10 provided by the present application in detail through more embodiments.

[0166] During the lifting or lowering process of the mopping and washing component 4, the dirt removing mechanism 44 and the liquid supply mechanism 45 can be lifted or lowered simultaneously with the cleaning roller 42 and the roller motor 41. Of course, it is also possible that the dirt removing mechanism 44 and the liquid supply mechanism 45 are kept at fixed positions, and the dirt removing mechanism 44 and the liquid supply mechanism 45 only contact the cleaning roller when the cleaning roller is in the lowered state. When the cleaning roller is in the lifted state, the dirt removing mechanism 44 and the liquid supply mechanism 45 do not contact the cleaning roller. For the extension or retraction of the mopping and washing component 4, to ensure that the cleaning roller maintains the self-cleaning ability and a certain cleanliness, the dirt removing mechanism 44 and the liquid supply mechanism 45 will extend or retract simultaneously with the mopping and washing component 4. In addition, to adapt to different cleaning environments, when the mopping and washing component 4 extends outwards, it has multiple gears, and at different gears, the distance that the mopping and washing component 4 extends outwards relative to the body 1 is different.

[0167] Combined with Fig.14 and Fig.15 , the sliding plate includes a main body portion 21 and at least one lifting portion 22. The first rack 14 is arranged on the main body portion 21, and the lifting portion 22 is arranged at the end of the main body portion 21. When the sliding plate has two lifting portions 22, the two lifting portions 22 are respectively arranged at both ends of the main body portion 21. Specifically, the lifting portion 22 has an inclined surface, and the inclined surface extends obliquely upwards from the surface of the main body portion 21, as shown in Fig.15 . In addition, there is a through hole 23 in the middle position of the lifting portion 22. The connecting column 241 on the mopping and washing component 4 can pass through the through hole 23, extend from below the sliding plate to above the sliding plate, and the connecting column 241 can contact the sliding plate. When the first power source 102 outputs rotational power and the sliding plate in the motion execution mechanism 103 slides, the acting force can be applied to the connecting column 241, thereby driving the mopping and washing component 4 to perform actions such as lifting, lowering, extending, and retracting.

[0168] See Fig.13 and Fig.16Taking the connecting component 24 as a connecting column 241 and a slider 242 as an example, one end of the connecting column 241 is connected to the mopping component 4, and the other end extends from the bottom of the sliding plate through the through hole 23 to the top of the sliding plate. The slider 242 is detachably connected to the connecting column 241 by a fastener (such as a screw). The slider 242 contacts the sliding plate, and the size of the slider 242 is larger than the size of the through hole 23, thereby effectively preventing the connecting component 24 from separating from the sliding plate. The sliding plate is detachably connected to the connecting column 241, which facilitates the installation of the mopping component 4.

[0169] See also Figures 13 to 15 Each lifting part 22 is provided with a first baffle 25. The area A between the first baffle 25 and the lowest point of the lifting part 22 is used to place the slider 242. Fig.13 As shown, when the sliding plate slides from the first limit position of the retracted state in the direction of arrow X, the first baffle 25 will contact the side wall of the slider 242, and the sliding plate can push the slider 242 to slide in the direction of arrow X, thereby driving the mopping assembly 4 to extend outward. Fig.19 A clearance groove 251 is provided on the surface of the first baffle plate 25 that abuts against the slider 242. The cross-sectional shape of the first baffle plate 25 is "L"-shaped. The clearance groove 251 can be used to store grease to improve the smoothness of the up and down floating action of the connecting column 241.

[0170] like Fig.16 As shown, when the sliding plate slides from the first limit position of the retracted state to the direction of arrow X2, one side of the mop-washing assembly 4 in the retracted state abuts against the side wall shell 411 of the cavity shell 46, limiting the further movement of the mop-washing assembly 4 relative to the cavity shell 46 in the direction of arrow X2. However, driven by the first power source 102, the sliding plate will continue to move relative to the cavity shell 46 in the direction of arrow X2, and the side wall of the other side of the slider 242 will abut against the inclined surface of the lifting part 22, and as the sliding plate 20 moves, the slider 242 climbs along the inclined surface, thereby driving the mop-washing assembly 4 to lift upward. Fig.15 In order to prevent the slider 242 from climbing over the inclined plane, there is a second baffle 26 at the top of the inclined plane; when the slider 242 climbs to the top of the inclined plane, the slider 242 will abut against the second baffle 26, and the mop-washing assembly 4 is also at the highest position of the lifting. Further, at this time, if the sliding plate 20 slides in the opposite direction of the arrow X2, the slider 242 can slide down along the inclined plane, and the mop-washing assembly 4 is in a descending state. The slider 242 slides down to the lowest point of the lifting part 22, and the mop-washing assembly 4 also descends to the low position.

[0171] Furthermore, in some cases, the mopping assembly 4 needs to remain in the lifted state for a long time. To facilitate the slider 242 to hover at the top of the lifting part 22, a horizontal hovering surface 220 is provided at the top of the lifting part 22. Fig.23As shown, when the slider 242 climbs along the inclined surface to the top of the lifting part 22, the slider 242 can stably stay on the hovering surface 220, so that the mopping component 4 is kept in a lifted state.

[0172] In an embodiment provided by the present application, as Fig.15 and 17 shown, the inclined surface of the lifting part 22 includes a first slope surface 221 and a second slope surface 222, and the inclination angle of the first slope surface 221 is greater than that of the second slope surface 222. When the slider 242 climbs along the inclined surface of the lifting part 22, it first climbs onto the first slope surface 221 with a larger inclination angle, and then climbs onto the second slope surface 222. This technical solution is beneficial to the rapid lifting of the mopping component 4.

[0173] Furthermore, in order to avoid excessive sliding resistance of the slider 242 on the inclined surface, see Fig.17 , a cylindrical sliding member 2421 is provided on the side of the slider 242 that abuts against the inclined surface of the lifting part 22. Of course, the cylindrical sliding member 2421 can also roll when sliding on the inclined surface. Another example is to see Fig.18 , the side of the slider 242 that abuts against the inclined surface of the lifting part 22 is an arc structure 2422. That is, the part of the slider 242 in contact with the lifting part 22 is the arc structure 2422.

[0174] When the sliding plate slides from the second extreme position in the extended state of the mopping component 4 to the first extreme position in the retracted state, the slider 242 can have multiple states. For example, the resistance to retraction of the mopping component 4 is small. As the sliding plate slides, the slider 242 does not have enough acting force to climb up the inclined surface. At this time, the slider 242 will abut against the bottom of the inclined surface, and then the sliding plate 20 pushes the mopping component 4 to retract slowly. It can be understood that in this state, the retraction of the mopping component 4 does not have a lifting action, and the mopping component 4 always contacts the ground when retracting. Another example is that the resistance to retraction of the mopping component 4 is large. As the sliding plate 20 slides, the slider 242 can climb up the inclined surface. At this time, the mopping component 4 will be lifted upward and at the same time complete the retraction action as the sliding plate 20 slides. It can be understood that in this state, when the mopping component 4 retracts, it first performs a lifting action and then retracts to the first extreme position along with the sliding plate 20.

[0175] See Fig. 22, in an embodiment provided by the present application, a first connection end 211 is provided on the sliding plate, and a second connection end 2423 is provided on the slider 242. The first connection end 211 and the second connection end 2423 can be used to arrange an elastic member. Specifically, one end of the elastic member is connected to the first connection end 211, and the other end of the elastic member is connected to the second connection end 2423. When the slider 242 climbs upward along the inclined surface of the lifting part 22, the elastic member will be stretched. The elastic force of the elastic member can be used to assist the slider 242 to move down from the top of the lifting part 22. In addition, during the retraction process of the mopping and washing assembly 4, the pulling force provided by the elastic member can also keep the slider 242 in contact with the first baffle 25 all the time, so as to prevent the slider 242 from climbing up the inclined surface, and finally the mopping and washing assembly 4 will not be easily lifted when retracted.

[0176] Further, as Fig.13 shown, in the solution provided by this embodiment, the detection unit provided on the cavity housing 46 may further include at least one detection unit for detecting the lifting state of the mopping and washing assembly. For example, Fig.13 in the example shown, a third detection unit, such as a third optoelectronic switch 283, is provided on the cavity housing 46; a third triggering structure 293 is provided on the sliding plate of the first action execution mechanism 103. After the mopping and washing assembly 4 is lifted, the third triggering structure 293 triggers the third optoelectronic switch 283, and the main board 2 can know that the mopping and washing assembly has been lifted, and can control the power source, the liquid supply mechanism and the dirt removal mechanism to stop working.

[0177] The first power source 102 drives the first gear 13 to rotate forward (such as clockwise or counterclockwise), the sliding plate moves to the right, and the sliding plate will contact the connection assembly 24 on the mopping and washing assembly 4 during the movement, and drive the mopping and washing assembly 4 to extend out through the connection assembly 24. When the second optoelectronic switch 282 is triggered, the first power source 102 stops rotating. At this time, the mopping and washing assembly is in a fully extended state and can perform edge cleaning on the edge of the object. After the mopping and washing assembly 4 finishes edge cleaning, the power source drives the first gear 13 to rotate in the reverse direction, the sliding plate moves to the left, and drives the mopping and washing assembly 4 to retract into the accommodation cavity 101 during the movement; when the first optoelectronic switch 281 at the initial position (i.e., the first limit position) is triggered, the first power source 102 stops rotating, and at this time the mopping and washing assembly 4 is in a fully retracted state. Next, the cleaning robot needs to clean the carpet. In order to avoid secondary pollution, the mopping and washing assembly needs to be switched to the lifted state. Subsequently, the first power source 102 rotates in the reverse direction, and the sliding plate moves to the left. The lifting part 22 on the sliding plate gradually jacks up the connection assembly 24. When the third optoelectronic switch 283 is triggered, the first power source 102 stops rotating. At this time, the mopping and washing assembly 4 is switched to the lifted state, and then the carpet can be cleaned. After the carpet cleaning is completed, the first power source 102 rotates forward, the sliding plate moves to the right, and the mopping and washing assembly descends and resets to the initial state.

[0178] In the technical solution provided by the present application, the driving device 10 has a simple structure. Only one power source is required to drive the mopping and washing assembly 4 to perform four actions of extending, retracting, lifting, and lowering, meeting the use of the mopping and washing assembly 4 under various working conditions. The power source has low performance requirements, simple control logic, and lower production costs.

[0179] In the above-mentioned embodiment, during the lifting process of the mopping and washing assembly 4, the sliding plate slides, and then the lifting part 22 on the sliding plate drives the slider 242 on the mopping and washing assembly 4 to move upward, so that the mopping and washing assembly 4 is lifted upward. The lifting process of the mopping and washing assembly 4 can be understood as the mopping and washing assembly 4 being lifted as a whole.

[0180] After the mopping and washing assembly 4 is lifted, the cleaning roller 42 can stop rotating, and the liquid supply mechanism 45 and the dirt removal mechanism 44 can both stop working.

[0181] The cleaning robot can lift the mopping and washing assembly under the following circumstances, such as:

[0182] When the cleaning robot travels onto the carpet, it lifts the mopping and washing assembly;

[0183] When it needs to cross an obstacle, it can lift the mopping and washing assembly;

[0184] When the user instructs to lift the mopping and washing assembly;

[0185] When the cleaning robot is working in the floor sweeping mode, it lifts the mopping and washing assembly; and so on.

[0186] In another embodiment provided by the present application, the lifting process of the mopping and washing assembly 4 can also be that one end of the mopping and washing assembly 4 rotates around an axis, so that the height of the cleaning roller 42 at the other end of the mopping and washing assembly 4 relative to the ground is raised. See Fig.24 As shown, this figure shows a schematic structural diagram of the mopping and washing assembly 4 being lifted relative to the ground. Fig.24 In it, the mopping and washing assembly 4 includes a cleaning roller 42 and a mopping and washing support 43. The mopping and washing support 43 is slidably connected to the rotating support 31. The rotating support 31 is rotatably connected to the base through a rotating shaft 4131. The base can also be considered as the cavity shell 46 or the body 1 of the cleaning robot. A connecting component 24 is provided on the mopping and washing support 43. The connecting component 24 passes through the rotating support 31 through the avoidance groove on the rotating support 31 and extends to the outside of the rotating support 31. A sliding plate 20 is also provided on the base. The sliding plate 20 can slide relative to the base. The sliding plate 20 has a lifting part 22. The sliding plate 20 can slide left or right relative to the base, thereby driving the mopping and washing assembly 4 to lift or extend outward respectively. Specifically, when the sliding plate 20 moves to the right from the initial position relative to the base, the connecting component 24 contacts the side wall of the sliding plate 20, and the sliding plate 20 can drive the connecting component 24 to move to the right at the same time, as Fig.32In the direction of arrow X, at this time, the mopping component 4 extends to the right relative to the rotating bracket 31, and it can be considered that the mopping component 4 switches from the retracted state to the extended state. When the sliding plate 20 moves leftward relative to the base from the initial position, the connecting component 24 contacts the inclined surface of the lifting part 22, and as the sliding plate 20 moves leftward, the connecting component 24 climbs up the inclined surface of the lifting part 22, and the connecting piece will simultaneously drive the rotating bracket 31 and the mopping component 4 to rotate upward along the Fig.32 arrow a direction in the figure. When the mopping component 4 needs to be reset to the initial position, only need to reset the sliding plate 20 to the initial position in the reverse direction, and the mopping component 4 can be reset from the lifted state or the extended state to the initial state. Among them, the initial state can be: the mopping component 4 is in the retracted state and at a low position.

[0187] Based on the above principles of lifting and telescoping of the mopping component 4, another driving device 10 provided by the present application will be described in detail below in combination with specific embodiments.

[0188] See Fig.24 、 Fig.25 and Fig.26 In an embodiment of the present application, a driving device 10 is provided. The driving device includes: a first power source 102 and a first action execution mechanism 103. The first action execution mechanism 103 is arranged on the cavity shell 46, the first action execution mechanism 103 is movably connected to the cavity shell 46, and the mopping component 4 is floatingly connected to the first action execution mechanism 103 through the connecting component 24. When the first power source 102 drives the first action execution mechanism 103 to act in different directions, the first action execution mechanism 103 can drive the mopping component 4 to realize actions such as lifting, lowering, extending or retracting through the connecting component 24.

[0189] In a specific embodiment, see Fig.25 and Fig.26 The first action execution mechanism 103 includes a sliding plate 20. The sliding plate 20 is slidably connected to the cavity shell 46. The first power source 102 outputs power to drive the sliding plate 20 to move relative to the cavity shell 46 along the Fig.25 arrow X1 and arrow X2 directions in the figure. The cavity shell 46 is fixedly connected to the body 1, and the cavity shell 46 has a receiving cavity 101. The mopping component 4 and the rotating bracket 31 are located in the receiving cavity 101. The mopping bracket 43 is rotatably connected to the cavity shell 46 or the body 1 through a rotating shaft 4131.

[0190] See Figures 27a to 27c, schematic views showing the mopping and washing assembly 4 in an initial state are presented from different perspectives. Herein, the initial state means that the mopping and washing assembly 4 is in a retracted state (such as the first limit position of the retracted state), and the cleaning roller 42 is in contact with the ground. Referring to FIGS. 28a to 28c, schematic views showing the mopping and washing assembly 4 in a lifted state are presented from different perspectives. The mopping and washing assembly 4 is in a retracted state (such as the first position of the retracted state). In the lifted state, the distance between the lowest point of the cleaning roller 42 of the mopping and washing assembly 4 and the ground is H1. Referring to FIGS. 29a to 29c, schematic views showing the mopping and washing assembly 4 in an extended state (such as the second limit position of the extended state) are presented from different perspectives. In the extended state, the distance by which the outermost edge of the mopping and washing assembly 4 extends relative to the body 1 is H2.

[0191] When the mopping and washing assembly 4 needs to extend, the first power source 102 drives the sliding plate 20 to move from the initial position along Fig.25 the direction of arrow X1 in, the rotating bracket 31 does not move, and the connecting assembly 24 in contact with the sliding plate 20 will drive the roller bracket 421 to extend outward relative to the rotating bracket 31 along the direction of arrow X1. When the sliding plate 20 moves to the limit position in the X1 direction, the roller bracket 421 will extend the maximum distance outward (as Fig.29b shown). When the mopping and washing assembly 4 needs to retract, the first power source 102 drives the sliding plate 20 to move along Fig.25 the direction of arrow X2 in. When it moves to the initial position, the roller bracket 421 completes the retraction.

[0192] Among them, the mopping bracket 43 may include the roller bracket 421.

[0193] Refer to Figures 25 to 28c , when the mopping and washing assembly 4 needs to be lifted, the first power source 102 drives the sliding plate 20 to move from the initial position along Fig.25 the direction of arrow X2 in. At this time, the rotating bracket 31 will be driven by the sliding plate 20 to rotate and swing upward around the rotating shaft 4131. The position of the mopping bracket 43 and the rotating bracket 31 remains unchanged, and the mopping bracket 43 will rotate and swing upward together with the rotating bracket 31, thereby realizing the rotational lifting of the mopping and washing assembly 4. When the sliding plate 20 moves to the limit position in the X2 direction, the mopping and washing assembly 4 is lifted to the maximum height, and the height of the lowest point of the cleaning roller 42 from the ground is also the maximum (as Fig.28c shown). When the mopping and washing assembly 4 needs to descend, the first power source 102 drives the sliding plate 20 to move along Fig.25 the direction of arrow X1 in. When it moves to the initial position, the mopping bracket 43 completes the descent and returns to the initial state (as Fig.27a shown).

[0194] Refer to Fig.25 and Fig.26, in an embodiment provided by the present application, the first power source 102 and the first action execution mechanism 103 (such as the sliding plate 20) can be arranged in the accommodating cavity 101, or both can be arranged outside the accommodating cavity 101, or one can be arranged in the accommodating cavity 101 and the other can be arranged outside the accommodating cavity 101.

[0195] The following will take the first power source 102 arranged outside the accommodating cavity 101 and the sliding plate 20 arranged in the accommodating cavity 101 for detailed introduction. It should be noted that the action execution mechanisms in the above embodiments include but are not limited to: lead screw motor devices, push rod motor devices, linear motor devices, hydraulic devices, cylinder piston devices, gear rack devices, etc.

[0196] In a specific embodiment, refer to Fig.25 and Fig.26 , taking the power source as a lead screw motor device as an example, the lead screw motor device includes: a second motor 12, a lead screw 17 and a nut slider 18. The lead screw 17 is connected to the output end of the second motor 12. When the second motor 12 rotates, it can drive the lead screw 17 to rotate. The nut slider 18 is cooperatively connected to the lead screw 17. When the lead screw 17 rotates, the nut slider 18 can slide horizontally along the axis direction of the lead screw 17.

[0197] As Fig.25 shown, the lead screw 17 is arranged along the length direction of the mopping component 4 (for example, Fig.25 the directions of the arrows X1 and X2 in). When the second motor 12 outputs power in one direction, the lead screw 17 can drive the nut slider 18 to move leftward ( Fig.25 the direction of the arrow X2 in), and when the second motor 12 outputs power in the other direction, the lead screw 17 can drive the nut slider 18 to slide rightward ( Fig.25 the direction of the arrow X1 in). Among them, the second motor 12 can output clockwise power and counterclockwise power. One of the powers in the above two directions can be clockwise power, and the other is counterclockwise power.

[0198] Further, refer to Fig.25 and Fig.31 , in an embodiment provided by the present application, a driving part 214 is provided on the sliding plate 20. The driving part 214 extends outward from the plate surface of the sliding plate 20, and the end of the driving part 214 has a concave structure that cooperates with the lead screw 17. An activity opening 415 is also provided on the cavity shell 46. The driving part 214 on the sliding plate 20 can pass through the activity opening 415 and be connected to the nut slider 18. When the second motor 12 drives the lead screw 17 to rotate, the moving nut slider 18 can drive the driving part 214 to move together. In order to prevent the driving part 214 from interfering with the cavity shell 46 during the movement process, the length of the activity opening 415 is greater than or equal to the maximum distance that the mopping component 4 can extend.

[0199] Refer to Fig.25 and Fig.26 , the cavity shell 46 is arranged on the body 1, and it can be fixedly connected to the body 1, or the cavity shell 46 and the body 1 are of an integral structure. The rotating bracket 31 is rotationally connected to the body 1 or the cavity shell 46 through a rotating shaft 4131. An orbital groove 32 is provided on the rotating bracket 31, and a sliding part 33 is provided on the mopping bracket 43. The sliding part 33 is connected and fitted in the orbital groove 32. The mopping bracket 43 has an installation cavity with an opening facing downwards, and the cleaning roller 42 is arranged in the installation cavity. A plurality of sliding parts 33 are provided on the top of the mopping bracket 43, and the sliding parts 33 can be connected and fitted in the sliding groove. Specifically, the sliding part 33 is a slider. A ridge rib is provided on the top end of the mopping bracket 43, and a plurality of sliders are symmetrically distributed on both sides of the ridge rib. The plurality of sliders can be clamped in the orbital groove 32, so that the mopping bracket 43 is suspended and installed under the rotating bracket 31.

[0200] See Fig.26 , Fig.30 and Fig.32 , in a specific embodiment, an orbital groove 32 is provided on the inner top surface of the rotating bracket 31. The orbital groove 32 has a constriction with an opening facing downwards, and the sliding part 33 can be connected to the orbital groove 32 through the constriction. At least one rotating connection arm 311 is further provided on the outer wall surface at the rear side of the rotating bracket 31. The rotating connection arm 311 is connected to the cavity shell 46 or the body 1 through a rotating shaft 4131.

[0201] See Fig.26 and Fig.30 , at least one connection component 24 is provided on the mopping bracket 43. Specifically, the connection component 24 is a connecting rod 243, and the connecting rod 243 is arranged on the front side wall of the mopping bracket 43. Taking the example that two connecting rods 243 are provided on the front side wall of the mopping bracket 43 at intervals, along Fig.26 the direction of the arrow M in, the connecting rod 243 extends forward and is connected to the sliding plate 20. During the sliding process of the sliding plate 20, the mopping bracket 43 can be driven to act through the connecting rod 243, so as to realize the extension and retraction of the entire mopping component 4.

[0202] In addition to being able to drive the mopping component to extend and retract relative to the body, the driving device provided by the embodiment of the present application can also drive the mopping component 4 to lift relative to the body. Specifically, see Fig.26 and Fig.31 , the sliding plate 20 has at least one hollow structure to form a lifting part 22 on the sliding plate 20. The lifting part 22 has an inclined slope, and a limiting part 212 is provided at the top of the slope. The limiting part 212 is arranged in the horizontal direction. The sliding plate 20 further includes a connecting buckle 213, and the connecting buckle 213 is used to connect to the cavity shell 46. Specifically, in combination with see Fig.33, there is a through slot 414 on the cavity shell 46, and the length of the slot 414 is equal to or greater than the maximum distance that the mopping assembly 4 can extend. The connecting buckle 213 on the sliding plate 20 can be cooperatively connected to the slot 414. When the power source drives the sliding plate 20 to slide, the connecting buckle 213 will slide in the slot 414.

[0203] Further, referring to Fig.33 , in an embodiment provided by the present application, a guiding groove 416 is further provided on the cavity shell 46. The guiding groove 416 includes a first groove 4161, a second groove 4162, and a third groove 4163. Among them, the setting direction of the second groove 4162 is the same as the length direction of the cavity shell 46 (such as Fig.33 the arrow X direction in), the first groove 4161 and the third groove 4163 are respectively located at both ends of the second groove 4162, and are both communicated with the second groove 4162. The first groove 4161 and the third groove 4163 respectively extend in the vertical direction. It can be understood that the first groove 4161 and the third groove 4163 are respectively perpendicular to the second groove 4162.

[0204] When the sliding plate 20 drives the connecting rod 243 to move, one end of the connecting rod 243 slides in the guiding groove 416. The sliding groove can not only guide the sliding of the connecting rod 243, but also enable the mopping assembly 4 and the cavity shell 46 to be floatingly connected in multiple directions. Referring to Figure 27b , when the mopping assembly 4 is in the initial state (such as the first limit position in the retracted state, and the cleaning roller 42 is in contact with the ground), the connecting rod 243 is located at the leftmost end of the second groove 4162 and also at the bottommost end of the first groove 4161. As the power source drives the sliding plate 20 to move leftward, since the connecting rod 243 cannot move leftward any further, the connecting rod 243 can only climb upward along the inclined surface of the lifting part 22. At this time, the connecting rod 243 will move upward along the first groove 4161 and finally move to the top end of the first groove 4161 (such as Fig.28b shown), and at this time the mopping assembly 4 is in the lifted state. In the initial state, when the power source drives the sliding plate 20 to move rightward, the connecting rod 243 will move from the leftmost end to the rightmost end along the second groove 4162, as Fig.29b shown, and the connecting rod 243 is also at the bottommost end of the third groove 4163. At this time, the mopping assembly 4 is in the extended state, and the distance that the mopping assembly 4 extends outward relative to the cavity shell 46 is H2. Usually, the length of the second groove 4162 is equal to the maximum distance that the mopping assembly 4 can extend.

[0205] The settings of the first slot 4161 and the third slot 4163 can also enable the mopping component 4 to be floatingly connected to the cavity housing 46, so as to adapt to the ground. Specifically, if the mopping component 4 is cleaning on an uneven ground or encounters a raised obstacle. Since the distance between the cavity housing 46 and the ground remains unchanged or changes little, if the mopping component 4 is rigidly connected to the cavity housing 46, then the mopping component 4 will be severely impacted and it cannot adjust its height to adapt to the changes in the ground. In the technical solution of the present application, referring to Figure 27b , in the initial state of the mopping component 4, the connecting rod 243 is also located at the bottom end of the first slot 4161. At this time, if the mopping component 4 is impacted, then the mopping component 4 will float upward under the action of the ground, thereby avoiding excessive force between the mopping component 4 and the ground. In addition, when the mopping component 4 is in the extended state, the connecting rod 243 is located at the bottom end of the third slot 4163. Similarly, when the extended mopping component 4 is impacted by the ground, the connecting rod 243 will move upward along the third slot 4163 from bottom to top to achieve floating upward relative to the ground, and can also avoid excessive force between the mopping component 4 and the ground.

[0206] After the mopping component 4 is extended, during the movement of the cleaning robot, the mopping component 4 is very likely to encounter an obstacle. In order to avoid damage to the mopping component 4 due to collision with an obstacle, in an embodiment of the present application, when the mopping component 4 is in the extended state and is subjected to an external force, the mopping component 4 can automatically retract into the accommodating cavity 101. Specifically, a spring-back device is provided between the mopping bracket 43 and the rotating bracket 31. When the mopping component is in the initial state (such as the first limit position in the retracted state), the spring-back device is in a compressed state. When the mopping component 4 is in the extended state, the spring-back device is in an extended state. When the extended mopping component 4 retracts into the accommodating cavity 101 under the action of an external force, the spring-back device will be compressed.

[0207] In a specific implementation, the spring-back device includes but is not limited to: springs, hydraulic cylinders, pneumatic cylinders, elastic blocks, etc. Taking the spring-back device as a spring as an example, referring to Fig.30 , a cavity 34 is provided on the ridge rib of the mopping bracket 43, and the spring can be arranged in the cavity 34. Referring to Fig.32 , an elastic member mounting seat 312 is provided in the track groove 32 of the rotating bracket 31. When the ridge rib is cooperatively connected with the track groove 32, one end of the elastic member will be sleeved on the elastic member mounting seat 312, and the other end of the elastic member contacts the mopping bracket 43.

[0208] As mentioned above, the power source is a lead screw motor device. If the driving part 214 on the sliding plate 20 is fixedly connected to the nut slider 18, then when the extended mopping assembly 4 is impacted, due to the self-locking effect of the lead screw 17 and the nut slider 18, the nut slider 18 will restrict the movement of the driving part 214, and then the sliding plate 20 will also be limited, and finally the mopping assembly 4 cannot be automatically retracted.

[0209] In the technical solution of the present application, the nut slider 18 is not fixedly connected to the driving part 214. When the mopping assembly 4 automatically retracts under the action of an external force, the driving part 214 on the sliding plate 20 will be separated from the nut slider 18, and the sliding plate 20 can freely move along Fig.25 the direction of arrow X2 in Fig.25 . In an embodiment provided by the present application, along the extending direction of the mopping assembly 4 ( Fig.25 the direction of arrow X1 in Fig.25 ), the driving part 214 is located on the left side of the nut slider 18 and is in contact with the nut slider 18. As mentioned above, a spring-back device is provided between the mopping bracket 43 and the rotating bracket 31. When the mopping assembly 4 is in the initial state, the spring-back device is in a compressed state, and the direction of the elastic force of the spring-back device is the direction of arrow X1 in , and the elastic force will drive the mopping assembly 4 to extend outwards. However, the nut slider 18 contacts the right side of the driving part 214. Based on the self-locking effect of the lead screw motor device, the sliding plate 20 will be restricted from automatically moving to the right. Only when the lead screw 17 rotates and the nut slider 18 moves to the right can the driving part 214 move to the right with the nut slider 18. It can be simply understood that the power for the mopping assembly 4 to extend outwards is provided by the spring-back device, and the nut slider 18 can restrict the sliding plate 20 from freely moving to the right. Only when the nut slider 18 moves to the right can the sliding plate 20 move to the right. When the mopping assembly 4 changes from the extended state to the retracted state, and when the mopping assembly 4 changes from the low position state (such as the state where the cleaning roller contacts the ground) to the lifted state, the sliding plate 20 always moves from right to left, and the moving direction of the sliding plate 20 is the same as Fig.25 the direction of arrow X2 in . The process of the sliding plate 20 moving to the right is provided by the lead screw motor device. Specifically, the second motor 12 outputs power in one direction, and the lead screw 17 drives the nut slider 18 to move along the direction of arrow X2. Since the driving part 214 of the sliding plate 20 is located on the left side of the nut slider 18, the nut slider 18 can push the sliding plate 20 to move to the left during the movement. In this process, the spring-back device will be further compressed.

[0210] Further, in an embodiment provided by the present application, the mopping and washing assembly 4 has multiple gears both in the extended state and the lifted state. In different gears of the extended state, the distance that the mopping and washing assembly 4 extends relative to the cavity housing 46 is different; in different gears of the lifted state, the distance that the mopping and washing assembly 4 is lifted relative to the ground is different. In order to enable the mopping and washing assembly 4 to extend in different gears, or the mopping and washing assembly 4 to be lifted by different distances relative to the ground, a counting module is further provided on the second motor 12. The counting module records the number of turns of the second motor 12 or the lead screw 17 rotating forward or backward. By recording the number of turns of the second motor 12 or the lead screw 17, the moving distance of the nut slider 18 on the lead screw 17 can be calculated, so as to determine the different gears of the mopping and washing assembly 4 in the extended state and the lifted state.

[0211] For example, when the nut slider 18 is in the first position, after the second motor 12 or the lead screw 17 rotates forward one hundred turns, the nut slider 18 moves to the first extreme position. At this time, the distance that the mopping and washing assembly 4 extends is the largest (i.e., the second extreme position in the extended state). After dividing these one hundred turns into ten parts, starting from the first position, every time the second motor 12 or the lead screw 17 rotates forward ten turns, it can represent that the mopping and washing assembly 4 switches to a gear. Similarly, when the nut slider 18 is in the first position, after the second motor 12 or the lead screw 17 rotates backward twenty turns, the nut slider 18 moves to another extreme position. At this time, the distance that the mopping and washing assembly 4 is lifted is the highest. Similarly, after dividing these twenty turns into five parts, starting from the first position, every time the second motor 12 or the lead screw 17 rotates backward four turns, it can represent that the mopping and washing assembly 4 is lifted by one gear. During the process of adjusting the lifting gear of the mopping and washing assembly 4, due to the self-locking function of the lead screw motor device, when the motor 12 stops rotating, the self-locking force can limit the displacement of the sliding plate 20, and the connecting rod 243 can also stay stably on the inclined surface of the lifting part 22, so as to ensure that the lifting gear of the mopping and washing assembly 4 remains unchanged.

[0212] In another embodiment provided by the present application, during gear adjustment, as mentioned above, multiple detection units can also be provided on the cavity housing 46, and different detection units can respectively detect whether the nut slider 18 or the sliding plate 20 is in the first position, different extreme positions, and different positions corresponding to different gears.

[0213] The following describes the action process of the mopping and washing assembly 4 in detail in combination with the usage scenario.

[0214] After the mopping and washing assembly 4 completes part of the cleaning task in the initial state (such as the first extreme position in the retracted state and the cleaning roller contacting the ground), it needs to switch to the extended state. Subsequently, the second motor 12 drives the lead screw 17 to rotate forward, and the nut slider 18 on the lead screw 17 moves to the right (see Fig.25From the perspective shown, under the action of the elastic device between the rotating bracket 31 and the mopping bracket 43, the mopping bracket 43 extends outward relative to the rotating bracket 31. As the nut slider 18 moves, the mopping assembly 4 extends outward to the farthest position. During the outward extension of the mopping bracket 43, the sliding plate 20 will move synchronously to the right, and the driving part 214 on the sliding plate 20 will always be in contact with the nut slider 18. A counter can also be provided on the cleaning robot, and the counter records the number of turns of the power output by the second motor 12. Based on the number of turns of the power output by the second motor 12 recorded by the counter, the main board 2 of the cleaning robot can calculate the position of the nut slider 18, and then determine the position of the mopping assembly 4. If the mopping assembly 4 has reached the second limit position in the extended state, the main board 2 controls the second motor 12 to stop working, and the mopping assembly 4 is in the extended state. The cleaning robot maintains the posture with the mopping assembly 4 in the extended state to perform the cleaning task.

[0215] After the mopping assembly 4 completes the tasks to be performed in the extended state, the main board 2 controls the second motor 12 to drive the lead screw 17 to output reverse power, and the nut slider 18 moves to the left (see Fig.25 the perspective shown), and drives the sliding plate 20 to move to the left. During the movement of the sliding plate 20, it can drive the mopping assembly 4 to retract into the accommodating cavity 101. Similarly, the main board 2 can calculate the moving position of the nut slider 18 based on the number of turns of the reverse power output by the second motor 12, and then determine the position where the mopping assembly retracts. If it is determined that the mopping assembly has reached the first limit position in the retracted state, the main board 2 controls the second motor 12 to stop working.

[0216] Next, when the cleaning robot recognizes a carpeted floor, in order to avoid secondary pollution, the mopping assembly 4 needs to be switched to the lifted state. The main board 2 controls the second motor 12 to drive the lead screw 17 to rotate in one direction, and the nut slider 18 moves to the left (refer to Fig.25 the perspective shown). At this time, the nut slider 18 will drive the sliding plate 20 to move to the left together. As the sliding plate 20 moves, the lifting part 22 on the sliding plate 20 gradually jacks up the connecting rod 243, and the mopping bracket 43 will rotate and lift around the rotating shaft 4131. After the mopping assembly 4 is in the lifted state, it can drive into the carpet area and clean the carpet. After the carpet is cleaned, it drives out of the carpet area. If the cleaning robot still needs to continue performing the cleaning task, the main board 2 can control the second motor 12 to drive the lead screw 17 to rotate in the other direction, and the sliding plate 20 moves to the right (see Fig.25 the perspective), and the mopping assembly descends.

[0217] Compared with a cleaning robot equipped with a rag or a mopping turntable, the cleaning robot with the mopping and washing assembly provided in this embodiment has better cleaning effect and higher cleaning efficiency. During the process of cleaning the ground, the cleaning roller can also perform self-cleaning simultaneously. The dirt removal mechanism 44 can scrape the sewage on the cleaning roller 42, and the liquid supply mechanism 45 can provide clean cleaning liquid for the cleaning roller 42. Subsequently, the cleaning roller 42 can mop and wash the ground again. This cleaning method can not only bring better cleaning effect, but also has a longer cleaning endurance for the mopping and washing assembly 4. During a single cleaning task, the cleaning robot does not need to frequently return to the base station for self-cleaning maintenance.

[0218] During the cleaning operation of the cleaning robot, it needs to face various cleaning environments. For example, tile floors, wooden floors, carpet floors, etc. When cleaning a carpet floor, in order to prevent the wet cleaning roller from wetting the carpet, it is necessary to lift the cleaning roller at this time to avoid contact between the cleaning roller and the carpet. In addition, for some corner areas (such as the edge of the wall and the edge of furniture), due to the influence of the external shape structure of the cleaning robot, the cleaning robot cannot achieve edge cleaning. In the technical solution provided in the embodiment of the present application, the mopping and washing assembly 4 with the cleaning roller 42 can not only move up and down. When edge cleaning is required, the mopping and washing assembly 4 extends out from one side of the cleaning robot, so that when the body of the cleaning robot is prevented from colliding with the wall or furniture, the mopping and washing assembly 4 can achieve edge cleaning.

[0219] When the cleaning robot is cleaning a dirty floor, in order to reduce the number of times it switches back and forth between the retracted state and the extended state, the mop-wash component 4 on the cleaning robot preferentially uses the extended state to clean the floor (i.e., normally extended or normally swung outward). When avoiding obstacles, the mop-wash component 4 on the cleaning robot is retracted into the accommodating cavity 101, and after completing the obstacle avoidance in the retracted state, it is switched to the extended state. In addition to reducing the number of times the mop-wash component 4 switches between the retracted state and the extended state, this working mode can also reduce the total time of the cleaning task. Specifically, first, when the mop-wash component 4 is in the extended state, it can also complete the cleaning of the conventional floor (non-corner floor). Because the floor of the household not only has a large area of ​​wall corner areas, but also has multiple corner areas of household objects in scattered positions. If the mop-wash component 4 on the cleaning robot is preferentially cleaned in the retracted state, it is necessary to switch back and forth between the retracted state and the extended state, and each time in the process of state switching, it is necessary to wait for a long time, or switch the motion algorithm of the cleaning robot. This not only increases the total time it takes for the cleaning robot to complete cleaning, but also increases the amount of calculations required by the control calculation unit on the main board 2 for the motion algorithm. The working scene of the cleaning robot is very complex. In order to achieve a better comprehensive cleaning effect, the cleaning robot needs to detect and determine in real time whether the mop-wash component 4 needs to be extended. The environment is complex, and the cleaning robot needs to determine many conditions, which cannot be exhaustive. Therefore, the cleaning robot cannot control the mop-wash component 4 to be extended in time every time it needs to be extended.

[0220] Therefore, the solution provided by the embodiment of the present application is: instead of determining whether the cleaning robot is to perform edge cleaning, the cleaning robot directly performs the cleaning task in the extended state of the mop-wash component 4. This solution eliminates the complex identification of edge cleaning situations, and only retracts the mop-wash component 4 in a few simple scenarios such as obstacle avoidance and turning. The control logic is simple, the design is not difficult, and it is easy to implement. In addition, see Fig.10b, in the left figure (G) of the drawing, the mopping and washing assembly 4 is shown in the first position (such as the first limit position in the retracted state), and in the right figure (H), the mopping and washing assembly 4 is shown in the second position (such as the second limit position in the extended state). The cleaning robot works according to the cleaning path shown in FIG. 10. It can be seen that when the mopping and washing assembly 4 is in the first position, the edge of the mopping and washing assembly 4 in the width direction is at a distance L3 from the widest edge of the body 1. If the cleaning robot cleans according to the "bow-shaped" cleaning path shown in the drawing, on the path where the cleaning robot travels, there will be a shaded area as shown in FIG. (G), and this shaded area is the area not cleaned by the mopping and washing assembly 4. By adopting the scheme of the mopping and washing assembly being normally extended, when the cleaning robot performs the cleaning task, the mopping and washing assembly 4 is extended. When cleaning according to the "bow-shaped" cleaning path shown in the drawing, since the outer edge of the mopping and washing assembly 4 is basically flush with the widest edge of the body 1, there will be no situation where the shaded area as shown in the left figure (G) cannot be cleaned after the cleaning robot finishes cleaning. Although the shaded area can be covered by adjusting the cleaning path of the cleaning robot so that the cleaning robot can cover the shaded area after turning around, it increases the complexity of software control. By adopting the scheme of the mopping and washing assembly being normally extended as shown in the right figure (H), there is no need to consider the problem of covering the shaded area, and the traversal algorithm of the cleaning robot is simpler.

[0221] That is, the working method of the cleaning robot provided in this embodiment may include the following steps:

[0222] S11. When performing a cleaning task in an open area, the mopping and washing assembly performs the cleaning task in the extended state;

[0223] S12. When it is detected that the surrounding environment determines that the mopping and washing assembly needs to retract, the mopping and washing assembly retracts, and the mopping and washing assembly performs the cleaning task in the retracted state or the cleaning robot travels with the mopping and washing assembly in the retracted state;

[0224] Wherein, in the extended state, the mopping and washing assembly extends from one side of the body, and part of the mopping and washing assembly is exposed; in the retracted state, the outer edge of the mopping and washing assembly is located inside the outer edge of the body, or part of the outer edge of the mopping and washing assembly is flush with the outer edge of the body.

[0225] Wherein, "detecting that the surrounding environment determines that the mopping and washing assembly needs to retract" in the above S12 may specifically include but is not limited to at least one of the following:

[0226] When it is detected that the cleaning robot needs to turn to avoid an obstacle, it is determined that the mopping and washing assembly needs to retract;

[0227] When it is detected that the cleaning robot is in a narrow space and needs to escape, it is determined that the mopping and washing assembly needs to retract;

[0228] When it is detected that the user issues a retraction instruction, it is determined that the mopping and washing component needs to retract.

[0229] Furthermore, the method provided in this embodiment may further include:

[0230] When the mopping and washing component performs a cleaning task in the extended state and it is detected that the surrounding environment determines that the mopping and washing component needs to be lifted, after the mopping and washing component retracts to the first limit position, the mopping and washing component is lifted to have a gap with the ground.

[0231] When the mopping and washing component is in the third position, the projection of the mopping and washing component is within the projection of the body; when the mopping and washing component is displaced to the fourth position, the edge of the mopping and washing component extends outside the edge of the body, and the projection of the mopping and washing component is within the projection of the body. In the general cleaning mode, the mopping and washing component is in the fourth position; in the special cleaning mode, the mopping and washing component is in the third position to walk along the edge of the obstacle. The main board controls the driving device to enable the mopping and washing component to stop and work at any position. Wherein, the mopping and washing component has a first limit position in the retracted state and a second limit position in the extended state; the any position is the first limit position, or the second limit position, or any position between the first limit position and the second limit position; the third position is the first limit position or any position between the first limit position and the second limit position; the fourth position is the second limit position or any position between the first limit position and the second limit position.

[0232] A control method or working method of a cleaning robot provided in another embodiment of the present application may be: the control device dynamically controls the driving device according to the behavior information of the body, so that the driving device drives the mopping and washing component to move relative to the body to change the position of the mopping and washing component relative to the body.

[0233] Wherein, the behavior information of the body may include: traveling speed, traveling direction, turning radius when turning, acceleration, etc. For example, when turning quickly, control the driving device to quickly retract the extended mopping and washing component; or, when traveling in a straight line after turning, control the driving device to expand the retracted mopping and washing component again.

[0234] In addition, it should be added that the drum motor in the mopping and washing assembly needs to have continuous current supply during the movement of the mopping and washing assembly. Therefore, a conductive groove assembly is further provided on the body of the cleaning robot in the embodiment of the present application. The conductive groove assembly includes a conductive groove body and an electricity connecting member. The electricity connecting member is arranged in the conductive groove body and can move in the conductive groove body. The electricity connecting member is electrically connected to the electrical interface of the drum motor. When the mopping and washing assembly moves, the electricity connecting member moves in the conductive groove to follow the mopping and washing assembly, so that the drum motor can maintain a powered state while moving. The conductive groove assembly is not clearly shown in the attached drawings of the specification of the present application.

[0235] The specific structure of the mopping and washing assembly will be described in detail below.

[0236] As Figure 5 shown in FIGS. 7, 8, and 9, in an embodiment provided by the present application, the decontamination mechanism 44 and the liquid supply mechanism 45 in the mopping and washing assembly 4 are respectively arranged on the mopping bracket 43, or are integrated with the mopping bracket 43. The scraping strip on the decontamination mechanism 44 can contact the cleaning drum 42 and scrape the sewage on the cleaning drum 42 clean during the rotation of the cleaning drum 42. Of course, the decontamination mechanism 44 does not simply scrape off the sewage. It also has the function of collecting sewage. After the scraping strip scrapes off the sewage, the sewage can directly enter the collection assembly. After the collection assembly filters the sewage, it can be transported to the sewage tank 9 through the pipeline connected to the decontamination water outlet 4410. In this embodiment, the mopping and washing assembly 4 includes a decontamination mechanism 44 and a liquid supply mechanism 45, that is, when the cleaning drum moves up and down and / or expands and contracts, the decontamination mechanism 44 and the liquid supply mechanism 45 also move up and down and / or expand and contract together.

[0237] The liquid supply mechanism 45 can provide cleaning liquid for the cleaning drum 42. For example, when the cleaning drum 42 is dry, the liquid supply mechanism 45 evenly sprinkles clean water on the surface of the cleaning drum 42, and the cleaning drum 42 is fully wetted, and its cleaning ability will be significantly improved. For another example, when the cleaning drum 42 is in a relatively dirty state, the liquid supply mechanism 45 can evenly sprinkle the cleaning solution mixed with the cleaning agent on the surface of the cleaning drum 42, and the cleaning solvent dissolves the stains, so as to facilitate the decontamination mechanism 44 to remove the stains on the cleaning drum 42 clean. For still another example, when the cleaning drum 42 is in the self-cleaning mode, the liquid supply mechanism 45 can sprinkle a large amount of cleaning solution on the surface of the cleaning drum 42. After dissolving the stains, the decontamination mechanism 44 can clean the stains and sewage clean, which is beneficial to quickly and efficiently self-clean the cleaning drum 42.

[0238] The liquid supply mechanism 45 can be an integrated structure with the mopping bracket 43. As Figure 7bIn the illustrated example, a liquid supply inlet 451 is provided on the outer surface of the mopping bracket 43. The liquid supply inlet 451 can be connected to the clean water tank 5 through a pipeline. A water distributor 452 is also provided on the mopping bracket 43. The water distributor 452 is arranged along the length direction of the mopping bracket 43 and is communicated with a plurality of water outlets of the liquid supply mechanism 45. The water distribution path can evenly disperse the cleaning solution supplied by the liquid supply inlet 451 to the plurality of water outlets, and then the plurality of water outlets can evenly sprinkle the cleaning solution on the cleaning roller 42, so that the surface of the cleaning roller 42 has better dry-wet uniformity.

[0239] Furthermore, the liquid supply mechanism 45 further includes a liquid supply pump. The liquid supply pump is arranged on the first flexible pipeline 443. The liquid supply pump can generate a suction force to transport the cleaning liquid in the clean water tank 5 to the liquid supply mechanism 45.

[0240] When the mopping assembly 4 on the cleaning robot performs self-cleaning, there are mainly two processes. One is that the decontamination mechanism 44 removes the sewage on the cleaning roller 42 completely, and the other process is that the liquid supply mechanism 45 provides clean cleaning liquid to the cleaning roller 42. As the decontamination mechanism 44 continuously removes the sewage and stains completely, and the liquid supply mechanism 45 continuously provides the cleaning liquid, the mopping assembly 4 can perform self-cleaning while mopping the floor, and the mopping assembly 4 will always have a better cleaning effect.

[0241] See Fig.34 , the mopping bracket 43 has a roller installation cavity 51, and the cleaning roller 42 is arranged in the roller installation cavity 51. Specifically, the mopping assembly 4 further includes a roller motor 41. On one side of the roller installation cavity 51, there is a motor mounting seat. The roller motor 41 is arranged on the motor mounting seat. The cleaning roller 42 is sleeved outside the roller motor 41 and is drivingly connected to the roller motor 41. The roller motor 41 can drive the cleaning roller 42 to rotate, so as to realize the cleaning of the floor. The roller motor 41 and the cleaning roller 42 are both arranged in the roller installation cavity 51. The roller installation cavity 51 has an opening facing downwards and a lateral opening. The cleaning roller 42 can contact the ground through the downward opening, and the lateral opening facilitates the user to disassemble and assemble the cleaning roller 42.

[0242] The decontamination mechanism 44 and the liquid supply mechanism 45 are both arranged on the mopping bracket 43. Specifically, the decontamination mechanism 44 is arranged in the roller installation cavity 51, and the decontamination mechanism 44 is located on the cavity wall of the roller installation cavity 51. The decontamination mechanism 44 includes a squeegee assembly 53. The squeegee assembly 53 extends towards the direction close to the cleaning roller 42 and inserts into the fluff inside the cleaning roller 42. When the roller motor 41 drives the cleaning roller 42 to rotate, the squeegee assembly 53 can scrape off the sewage and stains on the cleaning roller 42. The squeegee assembly 53 includes a squeegee 441.

[0243] The liquid supply mechanism 45 is arranged above the mopping bracket 43. The liquid supply mechanism 45 has a water distributor 452 and a plurality of liquid supply ports 453. The water distributor 452 can evenly distribute the cleaning liquid to the plurality of liquid supply ports 453, and then the cleaning liquid is evenly supplied and sprinkled from the liquid supply ports 453 to the cleaning roller 42. The liquid supply mechanism 45 further includes a first flexible pipe 443, and the first flexible pipe 443 communicates with the clean water tank 5 and the liquid supply inlet 451.

[0244] Correspondingly, there are openings on the cavity wall of the roller installation cavity 51, so that the plurality of liquid supply ports 453 of the liquid supply mechanism 45 above the mopping bracket 43 can supply and sprinkle the cleaning liquid on the cleaning roller 42 in the roller installation cavity 51 through the openings. Of course, the liquid supply mechanism 45 can also be directly arranged in the roller installation cavity 51. The liquid supply mechanism 45 is located above the cleaning roller 42 or directly contacts the cleaning roller 42, and the liquid supply mechanism 45 can directly supply and sprinkle the cleaning liquid to the cleaning roller 42 through a plurality of liquid supply ports.

[0245] Fig.34 In the figure, the direction of arrow Y represents the width direction of the mopping assembly 4. It can also be considered that when the cleaning robot performs a cleaning task, the direction of the cleaning robot's travel, or the moving direction of the mopping assembly. Fig.34 In the figure, the direction of arrow Z represents the height direction of the mopping assembly 4; Fig.34 In the figure, the direction of arrow b represents the rotation direction of the cleaning roller 42 when cleaning the ground. In an embodiment provided by the present application, along Fig.34 the direction of arrow Y, the liquid supply mechanism 45 is located on the front side of the decontamination mechanism 44; along Fig.34 the direction of arrow Z, the liquid supply mechanism 45 is located above the decontamination mechanism 44.

[0246] The decontamination mechanism is located on the front side or the rear side of the cleaning unit. The front side and the rear side mean that the overall of the two structural bodies have a front-rear relationship in the horizontal orientation, or the vertical central axes of the two have a front-rear relationship in the horizontal orientation. It does not exclude the possibility that there is partial overlap between the two in the horizontal direction, that is, it allows partial overlap between the decontamination mechanism and the cleaning unit. This positional relationship also falls within the scope of protection of "front side" or "rear side" in this article.

[0247] As the cleaning roller 42 rotates along Fig.34 the direction of arrow b, the liquid supply mechanism 45 first supplies and sprinkles the cleaning liquid to the cleaning roller 42. After the wetted cleaning roller 42 mops the ground, the stains are dissolved in the sewage of the cleaning roller 42 or adhered to the surface of the cleaning roller 42. Then, the decontamination mechanism 44 scrapes off the sewage and stains on the cleaning roller 42, and then the liquid supply mechanism 45 supplies and sprinkles the cleaning liquid on the surface of the cleaning roller 42 again.

[0248] In a specific embodiment, the included angle α between the position where the liquid supply mechanism 45 is arranged and the position where the decontamination mechanism 44 is arranged ranges from [20 degrees to 120 degrees], for example, it can be 60 degrees. Generally, in order to prevent the cleaning liquid from dripping onto the ground when the liquid supply mechanism 45 supplies the cleaning liquid to the cleaning roller 42, the liquid supply mechanism 45 is located directly above the cleaning roller 42, and the cleaning liquid dripping from the liquid supply port can be effectively absorbed by the cleaning roller 42, and different situations of leaking water onto the ground will not occur.

[0249] Further, referring to Fig.34 , on the decontamination mechanism 44, the scraping strip assembly 53 is located above the center line J of the mopping assembly 4, and the straight line F where the contact angle between the end of the scraping strip assembly 53 and the cleaning roller 42 is located generally passes through the center of the cleaning roller 42. It can be understood that the extension direction of a section at the front end of the scraping strip assembly 53 and the center of the cleaning roller 42 are generally on the same straight line, and the tangent line at the contact point between the scraping strip assembly 53 and the cleaning roller 42 is generally perpendicular. In this way, the scraping effect of the scraping strip assembly 53 on the cleaning roller 42 can be the best, the force applied by the scraping strip assembly 53 to the cleaning roller 42 is smaller, and the wear rate of the scraping strip assembly 53 is also smaller.

[0250] Referring to Fig.34 , in an embodiment provided by the present application, along the height direction of the mopping assembly 4, the liquid supply mechanism 45 is located above the cleaning roller 42. Along the width direction of the mopping assembly 4, the decontamination mechanism 44 is located behind the contact point between the cleaning roller 42 and the surface to be cleaned. When the cleaning roller 42 rotates clockwise, a certain area on the cleaning roller 42 sequentially passes through the liquid supply mechanism 45, the surface to be cleaned, and the decontamination mechanism 44, and finally returns to the liquid supply mechanism 45, and the liquid supply mechanism 45 conveys the cleaning liquid to the surface of the cleaning roller 42 again.

[0251] Further, along the first center line P in the vertical direction of the cleaning roller 42, the liquid supply mechanism 45 is located directly above the first center line P, or, with the rotation center of the cleaning roller 42 as the vertex of the angle, the included angle formed by the position where the liquid supply mechanism 45 is located and the first center line P ranges from [-30 degrees to +30 degrees].

[0252] Further, along the second center line J in the transverse direction of the cleaning roller 42, the decontamination mechanism 44 is located above the second center line J, or the position where the decontamination mechanism 44 is located is flush with the second center line J.

[0253] Referring to FIG. 9, Figure 34 to Figure 35a, in an embodiment provided by the present application, the mopping bracket 43 includes an installation shell 4211 and an installation cover 4212. The installation shell 4211 has an inner cavity, and the dirt removal mechanism 44 and the liquid supply mechanism 45 are arranged in the inner cavity. An opening communicating with the drum installation cavity 51 is provided in the inner cavity, and the dirt removal mechanism 44 and the liquid supply mechanism 45 are respectively arranged corresponding to the opening position. The installation cover 4212 can be cooperatively connected above the installation shell 4211 to close the inner cavity. In a specific implementation, the mopping bracket 43 is generally in an L-shaped structure. Along Fig.34 in the direction of arrow Y in the figure, a square accommodating inner cavity is provided on the left side of the cleaning drum 42, and the dirt removal mechanism 44 is arranged in the accommodating inner cavity.

[0254] As Fig.35b shown, the front bottom of the dirt collection box 442 may have an inclined angle as shown in the figure. This inclined angle can also be called a chamfer. When moving on a special traveling surface, such as a carpet with long hair, this inclined angle design can reduce the traveling resistance of the machine body. When the cleaning robot moves onto the carpet, the carpet hair can enter the bottom of the machine body along the inclined angle.

[0255] Furthermore, as Fig.35c shown, the front bottom of the machine body 1 may also have an inclined angle 1005 as shown in Fig.35c the figure. This inclined angle 1005 can also be called a chamfer. Similarly, when moving on a special traveling surface, such as a carpet with long hair, this inclined angle design can reduce the traveling resistance of the machine body. When the cleaning robot moves onto the carpet, the carpet hair can enter the bottom of the machine body along the inclined angle.

[0256] Of course, the inclined angles of the dirt collection box 442 and the bottom of the machine body can also be arc-shaped inclined angles or the straight-line inclined angles shown in the figure. This embodiment does not make specific limitations on this. The inclined angle of the dirt collection box 442 and the bottom of the machine body is an inclined angle surface formed at the front bottom end of the dirt collection box 442. The included angles between the inclined angle surface on the dirt collection box 442 and the inclined angle surface on the machine body and the horizontal plane (such as the ground) can be the same or different. The included angle between this inclined angle surface and the horizontal plane (such as the ground) can be an angle between 10 and 60 degrees.

[0257] The liquid supply port of the liquid supply mechanism 45 is directly an outlet hole facing the cleaning roller. Generally, the liquid discharged from the outlet hole has pressure. After the liquid with pressure comes out of the outlet hole and spreads out, a part of it will be sprayed onto the cleaning roller 42, and some liquid will also splash onto the cavity wall. After the water droplets on the cavity wall condense into large water droplets, they will fall onto the cleaning roller 42 or fall along the cavity wall to the ground. This may result in insufficient cleaning liquid on the cleaning roller 42, and users may misunderstand the water droplets on the ground as water leakage. If the amount of cleaning liquid on the cleaning roller is insufficient, the roller cannot be fully wetted, and not only the mopping effect cannot be achieved, but also the self-cleaning effect cannot be achieved. If the liquid supply amount of the liquid supply mechanism 45 is increased to solve this problem, it may cause water accumulation on the ground due to too much cleaning liquid supply, which will still directly affect the cleaning effect of the cleaning robot.

[0258] Therefore, the embodiment of the present application makes improvements to the liquid supply mechanism. Specifically, one side of the liquid supply mechanism 45 corresponding to the inner cavity is an arc-shaped surface adapted to the arc surface of the inner cavity. Refer to Fig.35a and 35b As shown, the arc-shaped surface of the liquid supply mechanism 45 facing the cleaning roller has the same arc degree as the arc surface of the inner cavity, and is the same as or similar to the arc degree of the cleaning roller 42. In addition, as Fig.38 shown, the liquid supply port 453 has an arc-shaped water guide surface 4531 for guiding the cleaning liquid onto the cleaning roller 42.

[0259] As Figure 8 shown, the liquid supply port 453 is set as an annular shape. In this way, the liquid sprayed by the liquid supply mechanism 45 can flow along the arc-shaped surface and supply liquid to the cleaning roller 42 through the annular liquid supply port 453, and the liquid can drip smoothly, with high liquid supply efficiency. The liquid supply port 453 is annular, and the center of the annular ring is the outlet hole 4530. The outlet hole 4530 is communicated with the branch for liquid supply in the liquid supply mechanism 45. As Fig.38 shown, the inner ring wall of the annular liquid supply port is an arc surface.

[0260] Along the liquid outflow direction, the inner ring wall of the liquid supply port 453 is a stepped structure with an opening size gradually increasing; the inner ring wall surfaces of each stepped section are all arc surfaces for guiding the liquid to flow towards the cleaning roller 42. More specifically, as Fig.38In the enlarged local view, the liquid supply port 453 is circular, and the center of the circular ring is the liquid outlet hole 4530. The liquid outlet hole 4530 communicates with one of the multiple branches. The inner ring wall of the liquid supply port 453 is a two-stage stepped structure with gradually increasing opening sizes, and the inner wall of each stage of the stepped structure is an arc surface. The cleaning liquid coming out of the liquid outlet hole 4530 falls onto the arc surface and can also flow along the arc surface to the cleaning roller 42, so that the cleaning liquid coming out of the liquid outlet hole 4530 can basically be sprayed onto the cleaning roller 42 without splashing onto the cavity wall outside the circular ring. The cleaning robot can also more accurately control the liquid supply amount of the liquid supply mechanism 45 in different scenarios. With an appropriate amount of cleaning liquid supply, the cleaning roller 42 has a good dry-wet state, and the mopping effect is good; also because the cleaning roller 42 has a good dry-wet state, the self-cleaning of the cleaning roller 42 by the decontamination mechanism 44 has a relatively good effect, which also positively promotes the mopping effect.

[0261] In order to enable the cleaning robot to have a better cleaning effect, in the solution provided in this embodiment, the liquid supply port 453 is further improved, and an arc water guiding surface is added at the liquid supply port 453 to guide the cleaning liquid to the cleaning roller; because of the arc water guiding surface, the cleaning liquid provided by the liquid supply mechanism 45 can basically flow to the cleaning roller 42 without splashing everywhere to other places. The cleaning robot can also more accurately control the liquid supply amount of the liquid supply mechanism 45 in different scenarios. With an appropriate amount of cleaning liquid supply, the cleaning roller 42 has a good dry-wet state, and the mopping effect is good; also because the cleaning roller 42 has a good dry-wet state, the self-cleaning of the cleaning roller 42 by the decontamination mechanism 44 has a relatively good effect, which also positively promotes the mopping effect.

[0262] Furthermore, as Fig.38 shown, a water wiping structure 80 is provided on the cavity wall of the mopping bracket facing the cleaning roller 42. The water wiping structure 80 is located on one side of the liquid supply port 453. If the scraping strip assembly is located on the front side of the cleaning roller 42, then the water wiping structure 80 can be located on the rear side of the liquid supply port. If the scraping strip assembly is located on the rear side of the cleaning roller, then the water wiping structure 80 can be located on the front side of the liquid supply port.

[0263] The included angle β between the line connecting the water wiping structure 80 and the center of the cross-section of the cleaning roller and the line connecting the liquid supply port and the center can be 5 to 30 degrees. There can be a gap between the water wiping structure 80 and the cleaning roller 42, or there can be no gap, but the water wiping structure cannot apply force to the cleaning roller 42. The function of the water wiping structure 80 is to block the liquid floating on the surface of the cleaning roller that has not been absorbed by the cleaning roller from flowing to the ground. Because the cleaning roller rotates during operation, if the cleaning liquid cannot be absorbed by the roller and floats on the cleaning roller, the cleaning liquid will be thrown out to the ground, resulting in the ground being too wet.

[0264] Since it takes a certain amount of time for the cleaning liquid to spread evenly on the cleaning roller 42 after the liquid supply mechanism 45 supplies the cleaning liquid to the cleaning roller 42, in order to ensure that the cleaning liquid can spread more evenly before the cleaning roller 42 mops the floor, the rotation speed of the cleaning roller 42 cannot be too fast. Secondly, when the rotation speed of the cleaning roller 42 is too fast, the scraping efficiency of the scraping strip assembly 53 on the cleaning roller 42 is also lower. In the technical solution provided by the present application, when the cleaning roller 42 mops the floor, the value range of its rotation speed is [100 rmp / min to 300 rmp / min], specifically 200 rmp / min.

[0265] In the technical solution provided by the present application, the rotation direction of the cleaning roller 42 is opposite to the rotation direction of the traveling wheels of the cleaning robot, which can improve the cleaning effect of the cleaning roller 42.

[0266] See FIGS. 9, 34 to Fig.35a , in an embodiment provided by the present application, the dirt removal mechanism 44 further includes a dirt collection assembly 54, and the dirt collection assembly 54 is arranged below the scraping strip assembly 53. The "below" mentioned herein refers to the positional relationship where the two structural bodies of the scraping strip assembly and the dirt collection assembly have a high-low position relationship as a whole, and does not exclude the possibility that they partially overlap in height. For example, in this article, the scraping strip assembly is generally higher than the dirt collection assembly, but it is allowed that the water diversion end of the scraping strip assembly extends into the dirt collection box, that is, both the scraping strip assembly and the dirt collection assembly have a certain height dimension and there is an overlapping part in height. This positional relationship also falls within the protection scope of "below" in this article. When the scraping strip assembly 53 scrapes the sewage on the cleaning roller 42, the dirt collection assembly 54 can collect the sewage and stains to avoid secondary pollution.

[0267] Further, the dirt collection assembly 54 includes a dirt collection box 442 and a dirt collection pipe 542. The dirt collection box 442 is located below the scraping strip assembly 53. The sewage and stains scraped off by the scraping strip assembly 53 can directly fall into the dirt collection box 442, and the dirt collection box 442 collects it. Along the traveling direction of the cleaning robot, the front side and the rear side are distinguished. The dirt collection box 442 can be located on the front side of the cleaning roller 42, which can reduce the cleaning blind area. Most cleaning robots are circular. From the perspective of the layout of each component of the whole machine, in order to make the cleaning roller in the mopping and washing assembly longer, as Fig.36a shown, the mopping and washing assembly can generally be arranged at a position with a distance G from the center O of the machine body. Fig.36aThe left figure (E) in it shows the situation where the dirt collection box 442 is located on the front side of the cleaning roller 42, and the figure (F) shows the situation where the dirt collection box 442 is located on the rear side of the cleaning roller 42. It can be seen from this figure that when the mopping and washing assembly 4 as a whole extends out of the body and is in the extended state for work (the extension lengths of the mopping and washing assemblies in both the left and right figures are L), the distance D1 from the rear edge of the cleaning roller 42 in the mopping and washing assembly 4 shown in figure (E) to the center O is greater than the distance D2 from the rear edge of the cleaning roller 42 shown in figure (F) to the center O. From this, it can also be concluded that the larger the dimension from the center O of the circle, the longer the lengths of the front edge and the rear edge of the cleaning roller 42 extending out of the body 1, that is, the lengths exposed outside the body 1. From this, it can also be known that Fig.36a the area S1 of the cleaning roller 42 shown in (E) in it exposed outside the body 1 is larger than Fig.36a the area S2 of the cleaning roller 42 shown in (F) in it exposed outside the body 1.

[0268] The larger the area of the cleaning roller 42 exposed outside the body 1, the larger its cleaning coverage area, especially in situations such as when the cleaning robot turns. Fig.36a In the structure where the dirt collection box shown in the left figure (E) in it is located on the front side of the cleaning roller 42, when the mopping and washing assembly 4 is in the extended state for work, the cleaning coverage area is large, and the cleaning blind area is smaller than Fig.36a the structure where the dirt collection box shown in the right figure (F) in it is located on the rear side of the cleaning roller. Also, as Fig.36b shown, in the corner area as shown in the figure, when the body of the cleaning robot maintains a safe distance from the wall corner or the edge of the obstacle, in the left figure (E’) of 36b, the dirt collection box 442 is located on the front side of the cleaning roller 42, and the distance from the cleaning roller 42 to the wall or the edge of the obstacle is D3. In the right figure (F’) of 36b, the dirt collection box 442 is located on the rear side of the cleaning roller 42, and the distance from the cleaning roller to the wall or the obstacle is D4. It can be clearly seen that D3 is less than D4, that is, in the solution of the left figure (E’), the cleaning roller is closer to the wall or the obstacle, which means that for the cleaning with the cleaning roller 42 at the rear, its cleaning coverage area is larger and the cleaning blind area is smaller.

[0269] One end of the dirt collection pipe 542 is arranged in the dirt collection box 442, and the other end is connected to the sewage tank 9 of the cleaning robot through a pipeline, so as to suck the sewage in the dirt collection box 442 into the sewage tank 9. Refer to Fig.35a shown, the direction indicated by the arrow in the figure is the flow path when the sewage scraped off by the scraping strip assembly 53 enters the dirt collection box 442 and is sucked away by the dirt collection pipe 542. In order to be able to suck the sewage in the dirt collection box 442 into the sewage tank in time, a water pump and a pipeline can be arranged on the dirt collection pipe 542, or alternatively, an air pump and a pipeline are connected to the sewage tank, and the air pump can provide negative pressure for the sewage tank. Under the action of the negative pressure, the sewage in the dirt collection box 442 can be sucked into the sewage tank through the pipeline. Refer to Figure 9a and Figure 9b , in a specific embodiment, the decontamination mechanism 44 further includes a negative pressure pump and a valve body 545. The negative pressure pump is connected to the sewage tank 9 through a pipeline or directly. When the negative pressure pump works, it can draw negative pressure in the sewage tank 9. The valve body 545 is arranged on the sewage collection pipe 542 and can be used to control the on-off of the sewage collection pipe 542. First, the negative pressure pump can draw negative pressure on the sewage tank 9, and then the valve body 545 is opened. The negative pressure in the sewage tank 9 can suck the sewage in the sewage collection box 442 into the sewage tank 9 through the second flexible pipeline 456.

[0270] The sewage collection pipe 542, the scraping strip assembly 53 and the sewage collection box 442 are all distributed on the same side of the cleaning roller 42. For example, the sewage collection pipe 542, the scraping strip assembly 53 and the sewage collection box 442 are all on the front side of the cleaning roller 42.

[0271] See Figure 9a and Figure 9b , in an embodiment provided by the present application, the mopping and washing assembly 4 further includes a joint assembly 455. The joint assembly 455 includes a clean water pipe joint and a sewage pipe joint. The clean water pipe joint can be regarded as the liquid supply water inlet 451 mentioned above, and the sewage pipe joint can be regarded as the decontamination water outlet 4410 mentioned above. One end of the clean water pipe joint is used to connect the first flexible pipeline 443 (which can also be called a flexible clean water pipe), and the other end is connected to the liquid supply mechanism 45 through the first pipeline 477. One end of the sewage pipe joint is used to connect the second flexible pipeline 456 (which can also be called a flexible sewage pipe), and the other end is connected to the interface of the sewage collection pipe 542 through the transverse pipeline 546. The transverse pipeline 546 is a pipeline with a fixed length, and the transverse pipeline 546 can also be a flexible pipeline. As Figure 9b shown, along the length direction of the mopping and washing assembly 4, through the first pipeline 477 and the transverse pipeline 546, the joint assembly 455 can be biased to one side of the mopping and washing assembly 4, so as to more conveniently connect the first flexible pipeline 443 and the second flexible pipeline 456 to the joint assembly 455. Imagine that if there is no first pipeline 477, transverse pipeline 546 and joint assembly 455, then the first flexible pipeline 443 and the second flexible pipeline 456 will be directly connected to the joints of the liquid supply mechanism 45 and the sewage collection pipe 542 at the middle position of the mopping and washing assembly 4. This not only requires longer first flexible pipeline 443 and second flexible pipeline 456, but also makes it difficult to effectively utilize the space above the mopping and washing assembly 4. Figure 7aAs shown, the interface of the flexible clean water pipe and the flexible sewage pipe, that is, the joint assembly 455, includes a liquid supply inlet 451 and a sewage removal outlet 4410, both of which are distributed on the front side of the cleaning drum, that is, above the sewage collection box. The flexible clean water pipe and the flexible sewage pipe are also located on the front side of the cleaning drum. With this arrangement, the second flexible pipe 456 is closer to the sewage collection box, making the overall sewage discharge pipe shorter, requiring fewer bent pipes, increasing the sewage discharge efficiency, eliminating the possibility of blockage. At the same time, the first flexible pipe 443 is also arranged on the front side of the cleaning drum and adjacent to the second flexible pipe 456, so that the two flexible pipes can share a pipe space without the need to specifically arrange a pipe space for the second flexible pipe 456.

[0272] Currently, for some cleaning devices, the rotation direction of the drum is the same as that of the device drive wheel. Although this can assist the device in moving forward and reduce energy consumption. However, the collaborative working process of the cleaning drum, the scraping strip assembly, and the liquid supply mechanism becomes: the cleaning drum is replenished with water through the liquid supply mechanism -> the scraping strip assembly scrapes the liquid on the cleaning drum -> the cleaning drum cleans the ground. There are also some cleaning devices where the rotation direction of the drum is different from that of the device drive wheel, but the sewage collection box and the scraping strip are set behind the drum. At this time, the collaborative working process of the cleaning drum, the scraping strip assembly, and the liquid supply mechanism is also: the cleaning drum is replenished with water through the liquid supply mechanism -> the scraping strip assembly scrapes the liquid on the cleaning drum -> the cleaning drum cleans the ground. It can be seen that for current such cleaning devices, the water just replenished is immediately scraped off after the clean water is replenished, and then the cleaning drum cleans the ground, which is not very reasonable. The scraped liquid contains the just replenished clean water, and this part of the clean water is recycled without participating in the cleaning.

[0273] When the existing cleaning robot drum performs a cleaning task, first, a water replenishment step is carried out, that is, the liquid supply mechanism transports the cleaning liquid to the surface of the cleaning drum. Then, the sewage removal mechanism scrapes off the dirt on the surface of the cleaning drum. Finally, the cleaning drum cleans the ground. There are mainly three problems with this execution step;

[0274] First, immediately after the liquid supply mechanism replenishes water, the sewage removal mechanism scrapes off the mixture of clean water and sewage. The stains on the surface of the cleaning drum may not be completely dissolved in the clean water, so most of the scraped-off is clean water rather than sewage, resulting in incomplete self-cleaning.

[0275] Second, after the sewage removal mechanism scrapes off the sewage on the surface of the cleaning drum, due to the effect of the scraping strip, the water content of the drum decreases by 90% before and after scraping. The water content of the cleaning drum decreases, and the cleaning power of the cleaning drum on the ground will also decrease.

[0276] Thirdly, after the squeegee of the cleaning robot wipes the water, the relatively dry roller scrubs the dirt on the ground. It still needs to rotate 180° before entering the water replenishment position. At this time, the dirt stuck on the overly dry roller is likely to be thrown out during the relatively long rotation process and finally fall onto the ground, resulting in poor cleaning effect.

[0277] However, the technical solution provided by the embodiment of the present application is different from some of the cleaning devices mentioned above. In the solution provided by the embodiment of the present application, the cleaning roller rotates in the reverse direction (i.e., opposite to the rotation direction of the driving wheel), the squeegee assembly is located on the front side of the cleaning roller, and the liquid supply mechanism is located above the cleaning roller. In this way, the collaborative working process of the cleaning roller, the squeegee assembly and the liquid supply mechanism is as follows: the cleaning roller replenishes water through the liquid supply mechanism -> the cleaning roller cleans the ground -> the squeegee assembly scrapes off the liquid on the cleaning roller. It can be seen that the solution provided by this embodiment is more reasonable. The freshly replenished clean water directly participates in the ground cleaning without going through the water scraping effect of the squeegee. At this time, the evenly wet squeegee has a better wiping and adsorption effect on the ground dirt, especially stubborn dirt. Then the roller rotates a small angle (usually only about 90°), and then is scraped by the squeegee. The dirt is not easily thrown out, and at this time, most of the scraped is sewage, and the clean water is fully utilized. Specifically, during the rotation process of the cleaning roller, the liquid supply mechanism supplies cleaning liquid to a region of the cleaning roller. The region infiltrated with the cleaning liquid cleans the surface to be cleaned. Subsequently, the decontamination mechanism acts on the region to scrape off the dirt and collect it. The region after scraping off the dirt enters the liquid supply range of the liquid supply mechanism again. It can be understood that when the cleaning roller cleans the ground, first, the water replenishment step is carried out, the surface of the cleaning roller is fully wetted, and the water content of the cleaning roller is also more. Subsequently, the cleaning roller cleans the ground again. At this time, the cleaning force of the cleaning roller on the ground is stronger, and more stains can be dissolved. Finally, the decontamination mechanism scrapes off the sewage and stains on the cleaning roller, and then the liquid supply mechanism replenishes the liquid again, and this process is repeated in turn. Since the liquid supply efficiency of the liquid supply mechanism and the decontamination efficiency of the decontamination mechanism are higher throughout the process, the cleaning liquid used by the cleaning roller during the self-cleaning process is less, and at the same time, the amount of sewage generated is also less, and the cleaning endurance time of the cleaning robot will be significantly improved.

[0278] At the same time, since the mopping component of the cleaning robot does not have suction, in order to improve the cleaning effect, when the rotation direction of the cleaning roller is opposite to the rotation direction of the device driving wheel, the cleaning roller can push the dirt forward. The dirt that was not cleaned by the cleaning roller for the first time has the opportunity to be picked up by the cleaning roller again later, so that multiple cleanings can be achieved.

[0279] In order to prevent the sewage from leaking to the side during the water scraping process of the squeegee assembly 53, the length of the dirt collection box 442 is greater than or equal to the length of the squeegee assembly 53. See Fig.35a, from the perspective of the installation direction of the squeegee assembly 53, the installation direction of the sewage collection box 442 is substantially perpendicular to that of the squeegee assembly 53. In this way, the sewage and stains scraped off by the squeegee assembly 53 can directly fall into the sewage collection box 442 and are not likely to leak out. Additionally, to ensure that all the sewage scraped off by the squeegee assembly 53 can enter the sewage collection box 442, the end of the squeegee assembly 53 is located within the sewage collection box 442. Thus, the sewage scraped off by the squeegee assembly 53 can directly enter the sewage collection box 442 along the end of the squeegee assembly 53.

[0280] When the squeegee assembly 53 scrapes the sewage on the cleaning roller 42, it is very easy to scrape the stains attached to the cleaning roller 42 into the sewage collection box 442 at the same time. When the sewage collection pipe 542 sucks the sewage, it may be blocked by these stains. To avoid this situation, refer to Fig.37 and Fig.38 , in an embodiment provided by the present application, the decontamination mechanism 44 further includes a filtering component 543. The filtering component 543 is disposed within the sewage collection box 442. After the sewage scraped off by the squeegee assembly 53 enters the sewage collection box 442, it is first filtered by the filtering component 543 and then enters below the sewage collection box 442. Then it can be collected into the sewage tank through the sewage collection pipe 542.

[0281] To facilitate the cleaning of the sewage collection box 442, the sewage collection box 442 can be detached from the mopping component 4 for cleaning, and the filtering component 543 in the sewage collection box 442 can also be detached for cleaning. During the detachment process, first, the mopping component 4 is switched to the extended state, then the cleaning roller 42 is detached from the lateral opening of the mopping bracket 43, and finally, the sewage collection box 442 can be detached from the roller installation cavity 51. Refer to Figure 9b As shown, the sewage collection box 442 has a V-shaped bottom surface, that is, along the axis direction of the cleaning roller, both ends of the bottom surface of the sewage collection box 442 are high and the middle is low. The low point of the V-shaped bottom surface is fitted with the pipe orifice of the sewage collection pipe 542 to communicate with the sewage collection pipe 542.

[0282] To avoid bending, springs (not shown in FIGS. 9 and Fig.38 ) can be provided on the outer sides of the second flexible pipe 456 and the first flexible pipe 443. In this way, when the mopping component moves as a whole (lifts and / or expands and contracts), there will be no bending to affect sewage discharge and liquid supply.

[0283] Refer to Fig.38 and 39a, in an embodiment provided by the present application, the squeegee assembly 53 includes a squeegee 531 and a water guide plate 532. The end of the squeegee 531 is a squeegee strip 441. The materials of the squeegee and the squeegee strip may be the same or different, and this embodiment does not limit this. The water guide plate 532 is connected below the squeegee 531. The distance that the end of the squeegee 531 extends outward is greater than the end of the water guide plate 532. The squeegee strip 441 at the end of the squeegee 531 contacts the cleaning roller 42. When the cleaning roller 42 rotates, the squeegee 531 can scrape the sewage on the cleaning roller 42, and then it is guided by the water guide plate 532 into the sewage collection box 442. In a specific embodiment, as Fig.35a shown, the cross-section of the water guide plate 532 is wedge-shaped. This structure can make a guiding water channel with a larger curvature formed on the surface of the water guide plate 532 after it is connected to the squeegee 531.

[0284] Furthermore, as Fig.39a shown, the squeegee 531 has a first plate section 5311 and a second plate section 5312. The first plate section 5311 and the second plate section 5312 are arranged at an obtuse angle, and the length of the second plate section 5312 is greater than the length of the first plate section 5311. The first plate section 5311 is the end that mainly functions when scraping water, and the second plate section 5312 is used to connect to the water guide plate 532. Specifically, the water guide plate 532 is connected below the second plate section 5312. The head end of the water guide plate 532 is close to the first plate section 5311, the tail end of the water guide plate 532 is close to the tail end of the second plate section 5312, and the tail end of the second plate section 5312 extends into the sewage collection box 442.

[0285] A plurality of water guide grooves 5321 are provided on the water guide plate 532. The plurality of water guide grooves 5321 are arranged at intervals. The arrangement direction of the water guide grooves 5321 is the same as the extension direction of the water guide plate 532. To ensure that the water guide grooves 5321 can guide the sewage into the sewage collection box 442, see Figure 8 , the number of liquid supply ports 453 on the liquid supply mechanism 45 is less than the number of water guide grooves 5321 on the water guide plate 532. The position where the water guide plate 532 acts on the cleaning roller is the water scraping position. See Fig.39a , the water guide groove 5321 can be a through groove (i.e., the groove opening is open) at the water scraping position 53211 (i.e., the end near the cleaning roller) for convenient water guiding. The end position 53210 (i.e., the tail) of the water guide groove 5321 is closed for convenient drainage. The tail of the water guide groove 5321 is located at the opening of the sewage collection box. See Fig.39bAs shown, the lower surface of the water guide plate 532 is an upwardly arched curved surface, which is the water guide surface 5322. Since the scraping plate 531 itself is bent downward, the water moves toward the upwardly arched curved surface of the water guide groove by the centrifugal force of the roller to overcome its own gravity. The best sewage scraping effect is achieved when the extension line at the end of the scraping bar assembly 53 passes through the center of the roller. That is, the scraping bar assembly 53 has a bent portion, which results in an upwardly arched curved surface of the water guide groove 5321. The water guide surface 5322 has two curved surfaces; from the water guiding to the water draining direction of the water guide surface 5322, the curvature of the corresponding arc of the curved surface decreases. As shown in the P1 section and the P2 section in the figure, where the P1 section is a section near the water guiding side of the cleaning roller 42, and the P2 section is a section on the water draining side. It can be seen from the figure that the arc curvature of the P1 section is greater than that of the P2 section.

[0286] A plurality of water guide grooves 5321 are provided on the water-facing side of the scraping bar assembly 53, and the water guide grooves 5321 at least extend to the collection port of the sewage collection assembly (sewage collection box 442). The water-facing side (lower surface) refers to the side where the scraping bar faces the rotation of the roller when the cleaning roller 42 rotates. When the roller rotates, it contacts the scraping bar from bottom to top; in the absence of suction, in the prior art, the roller contacts the scraping bar from top to bottom, and the water flows down along the scraping bar, and there is no need for a water guide groove.

[0287] As Fig.38 shown, the lowest point 53220 of the P2 section is lower than the highest point 4521 of the sewage collection box 442. As Figure 8 shown, the length of the water guide plate 532 is less than the actual water receiving length of the sewage collection box 442. As Fig.34 shown, the vertical distance Q between the opening position of the sewage collection box 442 near the cleaning roller 42 and the scraping bar assembly 53 is 3 to 5 mm.

[0288] In an embodiment provided by the present application, the water guide plate 532 and the scraping plate 531 can be connected by a fastener 533, or the water guide plate 532 and the scraping plate 531 are of an integral structure. When the water guide plate 532 and the scraping plate 531 are of a split structure, the water guide plate 532 and the scraping plate 531 are made of different materials. For example, the scraping plate 531 is made of a metal material, which has good stiffness and better wear resistance; while the water guide plate 532 is made of a plastic material, which is convenient for processing, and complex water guide grooves 5321 can be processed on its surface by injection molding or stamping, and the cost is lower.

[0289] The surface of the cleaning roller 42 has fluff, and the fluff materials and / or lengths of different models will be different. In the following several cases, if the position of the scraping bar assembly 53 remains unchanged, it is possible that the distance between the scraping bar assembly 53 and the cleaning roller 42 is too far, resulting in the scraping bar assembly 52 being ineffective, or the distance is too close, which is extremely likely to cause damage (such as damage to the scraping bar assembly) or the rotation resistance of the roller is too large, which is extremely likely to cause abnormalities in the roller motor:

[0290] Replace the cleaning roller with different models; or

[0291] The position deviation of the cleaning roller caused by some factors during long-term operation; or

[0292] The fluff loss of the cleaning roller during long-term operation, etc.

[0293] Participate in Fig.34 and Fig.35a As shown, when the cleaning roller 42 rotates in the direction of arrow b on the cleaning roller, the squeegee assembly 53 will be subjected to a force in the direction of arrow T. If this force is too large due to too close a distance, the squeegee assembly 53 is likely to be damaged. To avoid problems caused by the above-mentioned several situations, refer to Fig.39a and 40 , in an embodiment provided by the present application, the cleaning robot further includes an adaptive adjustment device. The adaptive adjustment device includes a swing assembly. The squeegee assembly 53 is connected to the mopping bracket 43 through the swing assembly. The squeegee assembly 53 can adaptively adjust its pose through the swing assembly to have a more suitable positional relationship with the cleaning roller 42 and can continuously act on the cleaning roller 42 to scrape off the dirt thereon. As shown in the figure, the swing assembly 500 includes a swing seat 534. A connection hole 5342 is provided on the swing seat 534. The swing seat 534 is connected to the mopping bracket 43 through a swing shaft 535. Further, a mounting hole 5341 is provided on the swing seat 534, and an elastic member 536 is arranged in the mounting hole 5341. One end of the elastic member 536 is connected to the swing seat 534, and the other end is in contact with the mounting shell 4211 of the mopping bracket 43. The elastic member 536 can make the contact force between the squeegee assembly 53 and the cleaning roller 42 an elastic force. When the squeegee 531 is subjected to too much force, the squeegee assembly 53 rotates slightly around the swing shaft 535, thereby increasing the distance between the end of the squeegee 531 and the cleaning roller 42, and then the contact force between the squeegee 531 and the cleaning roller 42 also becomes smaller. For example, when the squeegee 531 is subjected to too much force, the squeegee assembly 53 will rotate along the swing shaft 535, and the end of the squeegee 531 will move upward along the Fig.32 direction of arrow T in the figure, then the acting force between the squeegee 531 and the cleaning roller 42 will become smaller, so as to realize the adaptive adjustment of the squeegee assembly 53 and avoid damage due to excessive force. Another example is that if the cleaning roller 42 has some position deviations due to long-term operation, the swing assembly will adaptively act to keep a suitable positional relationship between the squeegee assembly 53 and the cleaning roller 42, and there is a suitable (neither too large nor too small) mutual acting force between the two, and the squeegee assembly can continuously act on the cleaning roller to scrape off the dirt thereon.

[0294] It should be added here that: the swing assembly 500 can be an integral structure with the squeegee assembly 53, or the swing assembly and the squeegee assembly are two components connected together by a connection method.

[0295] Further, along the axis of the cleaning roller from one end to the other end of the cleaning roller, the surface of the cleaning roller is in contact with the end of the wiper assembly. In addition, refer to Fig.39c As shown, the adaptive adjustment device in this embodiment further includes an elastic mechanism 300. The mopping assembly 4 is connected to the body 1 through the elastic mechanism 300. For example, one end of the elastic mechanism 300 can be connected to the cavity shell 46 of the body 1, and the other end can be connected to the mopping assembly 4. Among them, the elastic mechanism 300 can be an elastic component such as a spring. The wiper assembly 53 adjusts its position and posture through the adaptive adjustment device so as to continuously act on the cleaning roller to scrape off the dirt thereon. That is, the position and posture adjustment of the wiper assembly 53 is achieved by the combined action of the elastic mechanism 300 and the swing assembly 500. The mopping assembly 4 can adaptively adjust the relative position and posture between it and the body 1 through the elastic mechanism 300. The wiper assembly is in the mopping assembly 4 and changes its position and posture together with the mopping assembly. Inside the mopping assembly 4, the wiper assembly 53 adjusts the phase position and attitude relationship with the cleaning roller 42 through the swing assembly 500 to be in a more appropriate position and posture, and can apply an appropriate scraping force to the cleaning roller 42, so as to finally keep continuously acting on the cleaning roller to scrape off the dirt thereon.

[0296] It can be seen that by setting the adaptive adjustment device, the wiper assembly can float relative to the cleaning roller to keep the wiper always pressing against the roller. When the mopping assembly moves relative to the body, the elastic mechanism moves with the mopping assembly, or the mopping assembly moves relative to the body and the elastic mechanism.

[0297] The above-mentioned adaptive adjustment assembly can also be called a biasing assembly. That is, the decontamination mechanism further includes a biasing assembly. Under the action of the biasing force provided by the biasing assembly, the wiper assembly moves in the direction of pressing against the cleaning roller. Under the action of the biasing force provided by the biasing assembly, the wiper inserts into the cleaning roller by at least 1-2 mm. The biasing assembly includes a swing seat and an elastic member, and the wiper assembly is rotatably mounted on the mopping assembly or the body through the swing seat.

[0298] The above introduces a solution that uses one power source to realize the lifting and telescoping of the mopping assembly. The present application also supplements a solution here that uses two motors to respectively realize the lifting and telescoping functions of the mopping assembly. That is, the driving device 10 includes two power sources. Such as Fig.41As shown, the driving device 10 includes a first power source and a second power source. Among them, the first power source may include a first motor 60. The second power source includes a third motor 61. In specific implementation, both the first motor 60 and the third motor 61 can be connected to a speed reducer at the output end to output power outward through the speed reducer. Among them, the first power source is used to drive the telescopic movement of the mopping and washing assembly, and its corresponding first action execution mechanism 103 is the same as the structure mentioned in the above embodiments, that is, the first action execution mechanism 103 includes: a first gear 13 and a first rack 14. The first action execution mechanism 103 may include a sliding plate, and the sliding plate is slidably connected to the slide rail 15. At least one slide rail 15 can be provided on the cavity shell 46. In addition, the first photoelectric switch 281, the first trigger structure on the sliding plate for triggering the first photoelectric switch 281, the fourth photoelectric switch 284, the grating structure 294, etc. all have the same functions as those in the above embodiments. For specific content, please refer to the above, and details will not be elaborated here.

[0299] The second power source is used to drive the mopping and washing assembly 4 to lift, and its corresponding second action execution mechanism, such as Fig.41 As shown, may include: a second gear 62 and a second rack 63. The setting method of the second rack 63 is different from that of the first rack 14. Refer to Fig.41 , the first rack 14 is horizontally arranged, and the second rack 63 is vertically arranged.

[0300] The specific implementation process is as follows: When the mopping and washing assembly 4 is in the initial state (i.e., the first limit position in the retracted state, and the cleaning roller contacts the ground), the first motor 60 outputs power to drive the first gear 13 to rotate. The first rack 14 is driven by the first gear 13 to translate towards one side of the machine body. The first rack 14 pushes the mopping and washing assembly outward through the connecting structure located on the slide rail 15, so that a part of the mopping and washing assembly extends out of the machine body (such as Fig.42 (B)). If the mopping and washing assembly 4 extends to the second limit position in the extended state, the first motor 60 stops working. When the mopping and washing assembly needs to retract, the first motor 60 outputs reverse power to drive the first gear 13 to rotate in the reverse direction. The first rack 14 is driven by the first gear 13 to translate towards the inside of the machine body. The first rack 14 contracts the mopping and washing assembly inward through the connecting structure located on the slide rail 15. After the mopping and washing assembly 4 retracts to the initial state, the first motor 60 stops working. When the mopping and washing assembly 4 needs to rise, the second motor 61 outputs power to drive the second gear 62 to rotate. The second rack 63 drives the mopping and washing assembly 4 to rise along the axial direction of the connecting column 241 (refer to Fig.16 shown) (such as Fig.42(A)). After the mopping and washing assembly 4 rises to the high position and the third optoelectronic switch 283 is triggered, the third motor 61 stops working. When the mopping and washing assembly 4 needs to descend, the third motor 61 outputs reverse power to drive the second gear 62 to rotate reversely, the second rack 63 moves downward, and the mopping and washing assembly descends along the axial direction of the connecting column 241 (see Fig.16 as shown). When the reverse rotation duration of the third motor 61 is equal to the forward rotation duration (i.e., the duration used by the third motor to drive the mopping and washing assembly to lift), the third motor 61 stops moving. In addition, by adding a counting light-shielding sheet and a counting optocoupler to this assembly, step-by-step extension can also be achieved during the extension process. For the specific implementation, reference can be made to the above content and will not be elaborated here.

[0301] Furthermore, if the cleaning robot is cleaning a carpeted floor, the cleaning robot will repeatedly clean back and forth between the carpet area and the ordinary floor area. Then the cleaning robot will need to repeatedly switch between the lifting state and the descending state, and it may even occur that the mopping and washing assembly first switches from the extended state to the retracted state, and then switches to the lifting state. In this way, before the cleaning robot walks onto the carpeted floor from the ordinary floor, it needs to pause and wait, and only after fully switching to the lifting state can it walk onto the carpeted floor for cleaning. This will inevitably consume too much waiting time.

[0302] To avoid this problem, in an embodiment provided in the present application, the mopping and washing assembly on the cleaning robot can quickly switch to the lifting state in both the retracted state and the extended state. For example, when the mopping and washing assembly is in the extended state, or in different gears of the extended state, the mopping and washing assembly can simultaneously switch to the lifting state. In this way, when the mopping and washing assembly is in the extended state, it does not need to first retract to the initial state and then switch to the lifting state. Before the cleaning robot walks onto the carpeted floor or crosses an obstacle, it does not need to wait for too long. Even if the cleaning robot needs to repeatedly cross obstacles or move up and down the carpeted floor multiple times, the cleaning robot will not consume too much waiting time, and the total cleaning duration can be effectively reduced.

[0303] The present application supplements another solution here that uses two motors to respectively implement the lifting and telescoping functions of the mopping and washing assembly. That is, the driving device 10 includes two power sources. Different from the Fig.41 structure shown above, it is realized by the second power source and the corresponding second action execution mechanism, the hoisting structure. See Fig.43As shown, the first power source, the slide rail 15, the first photoelectric switch 281, the first trigger structure on the sliding plate for triggering the first photoelectric switch 281, the fourth photoelectric switch 284, the grating structure 294, etc. all have the same functions as those in the above embodiments. The same parts will not be elaborated here. The differences are as follows: The second action execution mechanism corresponding to the second power source is the reel 64 and the pulling rope 65. That is, the third motor 61 is connected to the reel 64. The pulling rope 65 is arranged on the reel 64.

[0304] The specific implementation process is as follows: The telescoping of the mopping and washing assembly 4 is the same as above. When the mopping and washing assembly 4 needs to be raised, the third motor 61 outputs power to drive the reel 64 to rotate. The pulling rope 65 drives the mopping and washing assembly to rise axially along the connecting column 241 under the drive of the reel 64. After the third photoelectric switch 283 is triggered when the mopping and washing assembly 4 rises to a high position, the third motor 61 stops working. When the mopping and washing assembly 4 needs to be lowered, the third motor 61 outputs reverse power to drive the reel 64 to reverse, and the mopping and washing assembly 4 descends axially along the connecting column 241 under the action of gravity. When the reverse rotation time of the third motor 61 is equal to the forward rotation time (i.e., the time used by the third motor to drive the mopping and washing assembly to lift), the third motor 61 stops moving. In addition, by adding a counting light-shielding sheet and a counting optocoupler to this assembly, step-by-step extension can also be achieved during the extension process. For the specific implementation, refer to the above content and will not be elaborated here.

[0305] The embodiments of the present application provide a solution for realizing the telescopic and lifting of the mopping and washing component with a single power source, and also provide a solution for realizing the telescopic and lifting of the mopping and washing component with a dual power source (i.e., one power source realizes telescoping and the other realizes lifting). No matter which implementation solution is adopted, a problem is faced, that is, how to control each power source to make the mopping and washing component telescope and lift at the appropriate time. For example, the mopping and washing component extends while descending, or retracts while ascending, or retracts first and then lifts, or lifts first and then retracts, or descends first and then extends, and so on. In a specific scenario, for example, the mopping and washing component 1 of the current cleaning robot is in the extended state. When the cleaning robot needs to enter a specific area (such as a designated non-mopping area or a carpet area), it is necessary to lift the mopping and washing component 1 to have a certain distance from the ground. Another example is that when the cleaning robot drives from the living room into the kitchen, there is a small step at the kitchen door, and the cleaning robot needs to overcome the obstacle to drive into the kitchen. At this time, in order to facilitate overcoming the obstacle, it is necessary to lift the mopping and washing component. Whether the mopping and washing component is directly lifted in the extended state or retracted to the innermost side (i.e., the first limit position) and then lifted requires the cleaning robot to make a judgment by sensing the environmental information. If the current environment is open and there are no obstacles in height, the mopping and washing component 1 can be directly lifted in the extended state. However, if the current environment is relatively complex and the detection information of the cleaning robot is limited, when the mopping and washing component 1 is directly lifted in the extended state, it is very likely that the mopping and washing component 1 will collide with an object during the lifting process. If the lifting action does not stop, it is very likely to damage the mopping and washing component. That is to say, lifting the outward-swinging cleaning roller is a great risk to the host. Therefore, the roller cannot participate in the cleaning function at this time. Also, due to the length protruding from the projection of the host, the cleaning robot needs to intelligently control the action of the mopping and washing component according to the real-time detected environmental information at all times, which will inevitably increase the computing amount of the cleaning robot, not only consuming power but also affecting the execution of the main task of the cleaning robot (i.e., the cleaning task). Therefore, in order to simplify the control logic of the cleaning robot and reduce the control complexity, the embodiments of the present application provide a solution in which the mopping and washing component retracts to a preset position (such as the first limit position in the retracted state) and then lifts. Specifically, the solution provided in this embodiment includes the following steps. The execution subject of each of the following steps can be the main board 2 in the embodiments of the present application. As the mopping and washing component control solution includes:

[0306] S1. When it is determined that the mopping and washing component needs to be lifted, obtain the current position of the mopping and washing component;

[0307] S2. If the mopping and washing component is in the first limit position, control the driving device to drive the mopping and washing component to lift; if the mopping and washing component is in the extended state, control the driving device to drive the mopping and washing component to first retract to the first limit position and then lift.

[0308] When the mopping and washing assembly is in the extended state, the mopping and washing assembly can be located at any position between the first extreme position and the second extreme position, or at the second extreme position.

[0309] After adopting the above solution, the cleaning robot does not need to detect the environmental information detected by the sensing system and perform complex calculations to determine whether there is enough space to lift the mopping and washing assembly in the current environment. The entire process does not require the participation of the sensing system, which can ensure the lifting safety of the mopping and washing assembly and is simple and easy to implement.

[0310] During the cleaning process of the cleaning robot, the cleaning roller 42 will adsorb the dirt on the ground, and the dirt on the roller will be scraped and collected by the decontamination mechanism 44. After working for a long time, the dirt collection box 442 needs to be cleaned. Currently, for some cleaning robots, if users want to disassemble the detachable parts (such as the sewage tank, roller, etc.) at the bottom of the body, they need to turn the body over with the bottom facing up before they can remove them, which results in a poor user experience.

[0311] As can be seen from the above, the mopping and washing assembly 4 in the embodiment of the present application includes a liquid supply mechanism 45, a decontamination mechanism 44, and a cleaning roller 42. Among them, although the dirt in the dirt collection box 442 of the decontamination mechanism 44 can enter the sewage tank 9 through the sewage pump. However, if the dirt collection box 442 is not cleaned after working for a long time, there will still be deposited dirt, which is extremely easy to breed bacteria and generate odors. Therefore, it needs to be disassembled relatively frequently to facilitate users to clean. In addition, although the cleaning roller 42 in this embodiment can be self-cleaned with flowing water during the task execution, it still needs to be disassembled for manual cleaning after a long time, or the cleaning roller 42 is worn and needs to be disassembled and replaced with a new cleaning roller. If users need to turn the body over with the bottom facing up to remove them, it will not be very convenient.

[0312] Therefore, an embodiment of the present application provides a solution that can easily disassemble the dirt collection box 442 in the mopping and washing assembly without the user having to turn over the body, which improves the disassembly convenience and meets the ergonomic design. In addition, another embodiment of the present application provides a solution for easily disassembling the cleaning roller 42. The dirt collection box disassembly solution will be introduced sequentially below, and then the cleaning roller disassembly solution will be introduced.

[0313] See Figures 44a to 44f , at least one side of the mopping and washing assembly 4 is exposed. As an example shown in 44a, the mopping and washing assembly 4 is exposed on one side of the body. With reference to the forward direction of the body 1, the mopping and washing assembly 4 is exposed on the right side of the body. The dirt collection box 442 can be located in front of the cleaning roller 42. See Figure 44b c to 44f, a release component is provided on the side of the dirt collection box corresponding to the exposed mopping and washing assembly. Users can see and touch the release component on the exposed side without having to turn over the body 1, and then operate the release component to remove the dirt collection box 442.

[0314] The release component has an operating handle; the operating handle is located at the bottom of the dirt collection box 442; when disassembling, the operating handle acts, the release component is in the unlocked state, the first end of the dirt collection box 442 is detached from the mopping bracket, and the dirt collection box 442 is pulled outwards at the bottom of the body; when installing, after the second end of the dirt collection box 442 is inserted into place from the bottom of the body, the first end of the dirt collection box 442 moves upwards to the locking position, and at the locking position, the release component is triggered to switch to the locked state.

[0315] Specifically, as Figure 44b and 44c , along the length direction of the dirt collection box 442, the dirt collection box 442 has two ends, namely a first end 4421 and a second end 4422. It should be added here that: in the length direction of the dirt collection box 442 and the axial direction of the cleaning roller 42, the length of the dirt collection box 442 can be equal to or greater than the length of the cleaning roller 42. At the position of the mopping bracket 43 corresponding to the dirt collection box 442, there are a first fixing structure 431 and a second fixing structure 432 that cooperate with the first end 4421 and the second end 4422 respectively. The second end 4422 of the dirt collection box 442 cooperates with the second fixing structure 432. For example, the second fixing structure 432 is a jack, and the second end 4422 of the dirt collection box 442 is a convex block structure adapted to the jack. A release component 70 is provided at the first end 4421 of the dirt collection box 442. The release component 70 may include: an elastic operating member 71 and a fixing pin 72. The elastic operating member 71 is connected to the fixing pin 72. The first fixing structure 431 may be a pin hole adapted to the fixing pin 72. When the user operates the elastic operating member 71, the elastic operating member 71 deforms and drives the fixing pin 72 to move, so that the fixing pin 72 disengages from the pin hole, and the dirt collection box 442 can be detached from the mopping bracket 73.

[0316] Such as Fig.44d As shown, after the first end 4421 of the dirt collection box 442 is detached from the first fixing structure 431, the first end 4421 descends, and the user can hold or grasp the first end 4421 and take out the dirt collection box from the body 1 along the length direction of the dirt collection box 442 (or the axial direction of the cleaning roller).

[0317] More specifically, as Fig.44a 、 44cWith reference to 44f, the elastic operating member 71 may include: a release button and a release spring 712. Among them, the fixing pin 72 is provided with a chute 722. The release button may be a knob. For example, the release button has a rotating shaft 714, and the release button is rotatably connected to the dirt collection box 442 through the rotating shaft 714. On both sides of the rotating shaft 714, there are respectively: an abutting structure 713 and an operating handle 711. Alternatively, the release button is a push-pull member for linear motion. The abutting structure 713 of the release button is located in the chute 722. A spring seat 4423 is provided at the first end of the dirt collection box 442, the release spring 712 is arranged in the spring seat 4423, one end of the fixing pin 72 is provided with a plug 721 adapted to the pin hole, and the other end is connected to the release spring 712.

[0318] When the release button is a knob, the user can rotate the release button, so that the abutting structure 713 drives the fixing pin 72 to act by abutting against the chute 722. When the release button is a pull-pull member, the user can make the abutting structure drive the fixing pin to act by pushing and pulling operations (such as pushing and pulling operations along the length direction of the fixing pin).

[0319] As Figure 44e As shown, when the user wants to remove the dirt collection box 442, the user applies an external force to the release button, such as rotating the release button. The abutting structure 713 on the release button abuts against the fixing pin 72 in the chute. At this time, the plug 721 of the fixing pin 72 disengages from the pin hole, and the first end of the dirt collection box 442 drops downward. The user pulls here, and the second end of the dirt collection box 442 disengages from the mopping bracket. At this time, the dirt collection box 442 is completely removed. When the user wants to reinstall the dirt collection box 442, first install the second end of the dirt collection box 442 (that is, insert the convex block structure at the second end into the jack). The user holds the first end of the dirt collection box 442 with the hand and presses it upward. The release spring deforms, and the fixing pin 72 acts to enable the fixing to enter the installation groove of the mopping bracket. After the dirt collection box 442 is installed in place, the position of the fixing pin 72 just corresponds to the position of the pin hole. Under the action of the elastic restoring force of the release spring, the fixing pin 72 moves, and the plug is inserted into the pin hole. At this time, the dirt collection box 442 is installed.

[0320] In order to ensure the installation stability of the dirt collection box 442, the release button is further provided with a locking structure, and the dirt collection box 442 is provided with a locking cooperation structure at the corresponding position. After the dirt collection box 442 is installed, the user can rotate the release button so that the locking structure cooperates with the locking cooperation structure to lock the position of the release button, so that the fixing pin 72 will not disengage from the pin hole due to vibration or the like. In this embodiment, the specific implementation of the locking structure on the release button and the locking cooperation structure on the dirt collection box 442 is not specifically limited.

[0321] Further, referring to Figure 44fAs shown, a filter assembly 543 is further provided in the dirt collection box 442, and the filter assembly 543 is used to filter large-particle dirt in the dirt entering the dirt collection box 442. As Figure 44f shown, the filter assembly 543 may be a filter element provided with a plurality of filter holes on it, and the filter element can be placed and stabilized in the dirt collection box 442 through some matching structures. The filter element is also provided with a through hole, and the dirt collection pipe 542 can pass through the through hole from above the filter element and extend below the filter element to be close to the bottom of the dirt collection box 442. After the user removes the dirt collection box 442, the filter assembly 543 can be taken out of the dirt collection box 442 to clean the dirt collection box and the filter assembly respectively. One end of the filter assembly 543 is provided with a handle 5431 for the user to easily pick it up. When the user picks up the filter assembly 543, the user can pinch the handle 5431 with fingers and take out the filter assembly 543 from the dirt collection box 442. The handle 5431 can be a plate-like body with a certain bending arc.

[0322] In addition, a detection element 4425 is further provided in the dirt collection box 442, and the detection element 4425 can be a detection magnet or the like. A sensing element (not shown in the attached drawings of the specification) is provided at the corresponding position on the mopping bracket. The sensing element can detect whether the dirt collection box 442 is installed on the mopping bracket by sensing the detection element on the dirt collection box 442. The reason for setting this detection element is to avoid the situation that the user starts the cleaning robot to work without installing the dirt collection box 442. If the sensing element senses that the dirt collection box 442 is not installed on the mopping bracket, the cleaning robot can remind the user to install the dirt collection box by means of voice and / or display. If the sensing element and the detection element are not set, the cleaning robot may perform the cleaning task without a dirt collection box, and the dirt scraped from the cleaning roller may be discharged to the ground because the dirt cannot be collected when cleaning the front and the back. Therefore, it is very necessary to set the sensing element and the detection element, and the machine can only be started to perform the cleaning task after the dirt collection box is installed on the body.

[0323] For the disassembly of the cleaning roller 42, refer to Fig.44a shown, the mopping assembly 4 is in a retracted state, that is, the end of the mopping assembly 4 is located inside the body 1. Looking down from above the body 1, that is, when the cleaning robot is on the ground and the user's perspective of looking at the cleaning robot, the user cannot see the mopping assembly 4. If the user wants to disassemble the cleaning roller in the mopping assembly 4, the user needs to squat down and tilt the head sideways to look at the position of the mopping assembly 4 inside the body 1, and then reach out to disassemble the cleaning roller. During the disassembly process, the user may disassemble it blindly, and it is almost the same when installing, and there is likely to be a situation of pinching the hand. Obviously, this solution that the cleaning roller can be disassembled without flipping the body is not very convenient. The embodiment of the present application provides a more convenient solution for disassembling and assembling the cleaning roller. Specifically,

[0324] An interaction device is provided on the body of the cleaning robot, and the interaction device can be a button, a touch screen, a voice interaction unit, etc. The user can trigger the mopping and washing component 4 to extend from one side of the body 1 through the interaction device, such as extending to a set position (which can be the second limit position in the extended state) or extending until the end of the mopping and washing component exposes the outer edge of the body 1. For example, when the user presses a button in the interaction device, after the main board 2 receives the operation signal triggered by the button, it controls the driving device 10 to drive the mopping and washing component 4 to extend from one side of the body 1 to the set position or extend a set length so that the end of the mopping and washing component is exposed. At this time, the user can detach the cleaning roller from the mopping and washing component 4. After the user cleans the cleaning roller or gets a new replacement roller, the roller is reinstalled on the mopping and washing component 4.

[0325] See Figure 5 As shown, in this embodiment, a roller motor 41 is provided at the first end in the length direction (the direction of the arrow in the figure) of the mopping bracket 43, and an opening is provided at the second end. The cleaning roller 42 can be inserted into the roller cavity of the mopping bracket 43 through the opening to be connected to the roller motor 41. A first structure 430 is provided at the second end of the mopping bracket 43. Correspondingly, a second structure is provided inside the end cap 420 of the cleaning roller 42. The first structure 430 and the second structure can be magnetic components used in cooperation. For example, one of the first structure 430 and the second structure is a groove, and the other is a protrusion, and the groove and the protrusion are adapted; the protrusion is a magnet, and a magnetic material is provided in the groove; or, a magnet is provided in the groove, and a magnetic material is provided on the protrusion, etc. This embodiment does not make specific limitations on this.

[0326] After the user triggers the extension of the mopping and washing component 4 by means of a button, voice or touch screen, such as Fig.12 As shown, the mopping and washing component 4 extends outside the edge 1001 of the body 1. At this time, when the user bends down and looks from the upper part of the body, the mopping and washing component can be seen, and the end of the cleaning roller 42 can also be seen. As Fig.12 In the example shown, the end cap 420 of the cleaning roller 42 is similar to a whistle shape. The user can easily pull out the cleaning roller by pinching the end cap 420 with one hand along the pulling-out direction (i.e., the width direction of the body 1), and thus it is disassembled. When installing, since the mopping and washing component is in the extended state, that is, Fig.12In the state shown, the user can also see the opening of the drum cavity of the mopping bracket. The user inserts one end of the cleaning drum through the opening, and the end cap 420 of the cleaning drum contacts and engages with the first structure 430 on the mopping bracket, thus completing the connection between the end cap 420 and the mopping bracket. If, after installation, the cleaning robot needs to perform a cleaning task, the cleaning robot performs the cleaning task while maintaining the extended state of the current mopping assembly 4. If, after installation, the cleaning robot needs to return to the base station, after detecting that the cleaning drum is installed, the cleaning robot automatically retracts the mopping assembly 4; alternatively, the user triggers the main board 2 of the cleaning robot through the interaction device to control the driving device to retract the mopping assembly.

[0327] Furthermore, the driving device 10 can also drive the mopping assembly to move up and down relative to the body. Correspondingly, when the cleaning drum needs to be disassembled, the driving device 10 drives the mopping assembly 4 to extend, so as to expose the end cap of the cleaning drum 42. At the same time, it also drives the mopping assembly 4 to lift to have a gap from the ground, facilitating the user to remove the cleaning drum 42. Because there is a gap between the cleaning drum and the ground, it is easier to pull out the cleaning drum.

[0328] In addition to triggering the retraction of the mopping assembly through the interaction device, the following solution can also be adopted: after the cleaning drum is installed on the mopping bracket, the user pushes the mopping assembly, and the driving device starts to work to drive the mopping assembly to retract to the first limit position. The cleaning robot further includes a sensing system and a main board; the main board is electrically connected to the sensing system; the sensing system includes a sensing unit for detecting the retraction thrust of the mopping assembly; after the sensing unit detects the installation thrust of the mopping assembly, it sends a retraction signal to the main board, and the main board controls the driving device to start working to drive the mopping assembly to retract to the first limit position.

[0329] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

1. A cleaning robot, characterized in that, Comprising: A body; A mopping and washing assembly, including a cleaning unit motor, a cleaning unit, a liquid supply mechanism and a dirt removal mechanism; The cleaning unit motor is connected to the cleaning unit, the liquid supply mechanism is used to supply cleaning liquid to the cleaning unit, and the dirt removal mechanism is used to scrape off the dirt on the cleaning unit; Wherein, along the traveling direction of the cleaning robot, the dirt removal mechanism is located on the front side of the cleaning unit; Along the rotation direction of the cleaning unit, the cleaning unit is configured to clean the ground after replenishing cleaning liquid through the liquid supply mechanism, and then scrape off the dirt through the dirt removal mechanism.

2. The cleaning robot according to claim 1, wherein, Drive wheels are provided on the body; The rotation direction of the cleaning unit is opposite to the rotation direction of the drive wheels.

3. The cleaning robot according to claim 1, wherein The dirt removal mechanism includes a scraping strip assembly and a dirt collection box; The end of the scraping strip assembly is in contact with the cleaning unit, and the dirt collection box is located below the scraping strip assembly; when the cleaning unit rotates, the dirt scraped off by the scraping strip assembly enters the dirt collection box.

4. The cleaning robot according to claim 3, characterized in that, The lower surface of the scraping strip assembly is a water guiding surface, and the water guiding surface guides the scraped dirt into the dirt collection box.

5. The cleaning robot according to claim 3, characterized in that, A sewage tank is provided on the body; An avoidance hole is provided on the scraping strip assembly; One end of a dirt collection pipe passes through the avoidance hole, and the other end is communicated with the dirt collection box; The dirt collection box is communicated with the sewage tank through a flexible sewage pipe.

6. The cleaning robot according to any one of claims 3 to 5, characterized in that, A chamfer is provided at the front end of the bottom of the dirt collection box.

7. The cleaning robot according to any one of claims 3 to 5, characterized in that, In the height direction of the body, the lowest point of the dirt collection box is higher than the lowest point of the bottom of the body.

8. The cleaning robot according to any one of claims 3 to 5, characterized in that The dirt collection box is detachable; The disassembly direction of the dirt collection box is substantially perpendicular to the disassembly direction of the cleaning unit.

9. The cleaning robot according to any one of claims 3 to 5, characterized in that, The cleaning unit and the dirt collection box are approximately equal in length.

10. The cleaning robot according to any one of claims 1 to 5, characterized in that, Also including: A driving device, arranged on the body and connected to the mopping and washing assembly; Along the width direction of the body, the driving device can drive the mopping and washing assembly to extend from at least one side of the body, so that a part of the mopping and washing assembly is exposed.

11. The cleaning robot according to claim 10, characterized in that Also including a control device; The control device is electrically connected to the driving device and is used to dynamically control the driving device according to the behavior information of the body, so that the driving device drives the mopping and washing assembly to move relative to the body to change the position of the mopping and washing assembly relative to the body.

12. The cleaning robot according to claim 10, characterized in that, The driving device can also drive the mopping and washing assembly to lift relative to the body.

13. A mopping and washing component, characterized in that, Comprising: A mopping bracket, having a drum installation cavity with an opening facing downwards; A cleaning unit motor, arranged in the drum installation cavity; A cleaning unit, connected to the cleaning unit motor, and can contact the surface to be cleaned through the opening; A dirt removal mechanism, arranged on the mopping bracket, and used to scrape off the dirt on the cleaning unit; Wherein, the mopping and washing assembly is used to be installed on a cleaning robot, and along the traveling direction of the cleaning robot, the dirt removal mechanism is located on the front side of the cleaning unit.

14. The mopping and washing assembly according to claim 13, characterized in that, A connection structure for connecting the driving device is provided on the mopping bracket, so as to drive the mopping and washing assembly to move through the driving device.

15. The mopping and washing assembly according to claim 13, wherein, A liquid supply mechanism is also provided, arranged on the mopping bracket, and used to supply cleaning liquid to the cleaning unit; the liquid supply mechanism is located above the cleaning unit; Along the rotation direction of the cleaning unit, the cleaning unit is configured to clean the ground after replenishing cleaning liquid through the liquid supply mechanism, and then scrape off dirt through the dirt removal mechanism.

16. The mopping and washing assembly according to any one of claims 13 to 15, characterized in that The dirt removal mechanism includes a scraping strip assembly and a dirt collection box; The end of the scraping strip assembly contacts the cleaning unit, and the dirt collection box is located below the scraping strip assembly; When the cleaning unit rotates, the dirt scraped off by the scraping strip assembly enters the dirt collection box through the lower surface of the scraping strip assembly.

17. A cleaning robot, characterized in that, Comprising: A body; A mopping assembly, including a cleaning unit motor, a cleaning unit, a liquid supply mechanism, and a dirt removal mechanism; The cleaning unit motor is connected to the cleaning unit, the liquid supply mechanism is configured to supply cleaning liquid to the cleaning unit, and the dirt removal mechanism is configured to scrape off dirt on the cleaning unit; Wherein, along the traveling direction of the cleaning robot, the dirt removal mechanism is located on the front side of the cleaning unit.

18. A cleaning robot, characterized in that, Comprising: A body; A mopping assembly, including a cleaning unit motor, a cleaning unit, and a dirt removal mechanism; The cleaning unit motor is connected to the cleaning unit, and the dirt removal mechanism is configured to scrape off dirt on the cleaning unit; Wherein, along the traveling direction of the cleaning robot, the dirt removal mechanism is located on the front side of the cleaning unit.

Images