Base station for cleaning robot

Abstract

The invention provides a cleaning system which comprises a cleaning robot and a base station, the base station comprises a guide slope and a cleaning tank, a cleaning device is arranged at the bottom of the cleaning robot, and the cleaning robot stops on the base station through the guide slope so that the cleaning device can conduct cleaning in the cleaning tank. A positioning groove for accommodating a driving wheel of the cleaning robot is formed in the guide inclined surface, a shielding part is arranged at the bottom of the cleaning robot, the driving wheel is stopped in the positioning groove, and the shielding part is matched with the guide inclined surface in an abutting manner so as to shield cleaning liquid splashed from the cleaning groove when the cleaning device is used for cleaning.

Description

Technical Field

[0001] This disclosure belongs to the field of cleaning equipment technology, and specifically provides a cleaning system. Background Technology

[0002] A cleaning robot is a robot capable of intelligently cleaning the home environment, mainly including robotic vacuum cleaners, robotic mops, and robotic vacuum and mop combos. To facilitate charging and / or cleaning of cleaning robots, existing cleaning robots are usually equipped with base stations, which allow them to charge the robot, clean the mopping parts, and remove dust from the dustbin.

[0003] For cleaning robots with mopping functions, the corresponding base station uses a cleaning tank to hold the robot's mopping parts. The cleaning unit on the base station then cleans the mopping parts within the tank, thus achieving automatic cleaning. However, during the cleaning process, the rotating mopping parts often splash dirty liquid out of the cleaning tank, sometimes even flowing into the robot's suction port. This causes the robot to suck in the dirty liquid from the suction port during subsequent vacuuming operations, damaging the vacuuming system. Summary of the Invention

[0004] To address the aforementioned problems in the prior art, specifically the issue that existing cleaning robots, when cleaned by a base station, easily splash dirty liquid out of the base station's cleaning tank, causing the liquid to flow into the suction port, this disclosure provides a cleaning system including a cleaning robot and a base station. The base station includes a guide ramp and a cleaning tank. The cleaning robot has a cleaning device at its bottom. The cleaning robot stops on the base station via the guide ramp, allowing the cleaning device to clean in the cleaning tank. The guide ramp has a positioning groove for accommodating the drive wheel of the cleaning robot. The bottom of the cleaning robot has a shielding part, and the drive wheel is positioned in the positioning groove. The shielding part abuts against the guide ramp to prevent cleaning liquid from splashing out of the cleaning tank during cleaning by the cleaning device.

[0005] Furthermore, the bottom of the cleaning robot is provided with water-blocking ribs, water-blocking protrusions, or water-blocking areas, which form the shielding part.

[0006] Furthermore, the cleaning robot includes a cleaning assembly with a roller brush, and the shielding portion is located behind the roller brush in the forward direction of the cleaning robot.

[0007] Furthermore, the cleaning component is floatingly mounted on the bottom of the cleaning robot, and the shielding part is mounted on the cleaning component so that it floats together with the cleaning component.

[0008] Furthermore, the cleaning assembly also includes a roller brush cover, which includes a fixed frame fixedly connected to the main body of the cleaning robot and a cover body connected to the fixed frame. The cover body is capable of floating up and down relative to the fixed frame, and the blocking part is fixedly connected to the cover body so that the blocking part floats together with the cover body.

[0009] Furthermore, the front end of the cover is hinged to the fixed frame, and the shielding part is also fixedly connected to the fixed frame through its top end;

[0010] The shielding portion includes an elastic portion located between the fixed frame and the cover body. The elastic portion is used to provide a downward force to the cover body, so that the bottom end of the shielding portion abuts against the guide slope or the surface to be cleaned.

[0011] Furthermore, an elastic member is provided between the fixing frame and the cover, the elastic member being used to provide a downward force to the cover so that the bottom end of the shielding part abuts against the guide slope or the surface to be cleaned.

[0012] Furthermore, the guide slope is provided with an abutment portion that mates with the blocking portion, the abutment portion being a sealing surface located on the top side of the guide slope; or,

[0013] The abutting part is a retaining rib provided on the top side of the guide slope.

[0014] Furthermore, the water-blocking rib is made of an elastic material.

[0015] Furthermore, a sealing part is provided on the side wall of the cleaning tank, and the sealing part abuts and seals with the cleaning robot inside the cleaning tank to isolate the cleaning fluid below the sealing part.

[0016] Based on the foregoing description, those skilled in the art will understand that in the aforementioned technical solution of this disclosure, by sealing the shielding part of the cleaning robot with the contact part of the base station, the shielding part can block the cleaning liquid splashed out from the cleaning tank, thereby preventing the situation where the dirty liquid flows into the suction port of the cleaning robot and contaminates the suction port.

[0017] Furthermore, by setting a positioning groove on the base station to accommodate the drive wheel of the cleaning robot, when the drive wheel of the cleaning robot enters the positioning groove, the shielding part sinks down and presses against the contact part, thus shielding the cleaning liquid splashed out from the cleaning tank.

[0018] Furthermore, by setting the roller brush cover as a fixed frame that is fixedly connected to the body of the cleaning robot and a cover that can float up and down relative to the fixed frame, and fixing the shielding part to the cover, the shielding part can move up and down with the floating of the cover, thereby adapting to the surface to be cleaned with undulations, obstacles and / or steps.

[0019] Furthermore, by having an elastic portion located between the fixed frame and the cover, the shielding portion can provide a downward force to the cover through the elastic portion, thereby causing the bottom end of the shielding portion to abut against the base station's contact portion to prevent dirt from entering the suction port on the base station; and causing the bottom end of the shielding portion to abut against the surface to be cleaned to pick up dirt from the surface to be cleaned. Attached Figure Description

[0020] To more clearly illustrate the technical solution of this disclosure, preferred embodiments of this disclosure are described below with reference to the accompanying drawings, in which:

[0021] Figure 1 This is a schematic diagram illustrating the effect of the cleaning system in a preferred embodiment of this disclosure;

[0022] Figure 2 This is a schematic diagram illustrating the effect of connecting the cleaning robot and the base station in a preferred embodiment of this disclosure;

[0023] Figure 3 yes Figure 1 A cross-sectional view of the central base station along the AA direction;

[0024] Figure 4 This is a schematic diagram of the structure of the charging terminal and the cleaning robot just beginning to connect in a preferred embodiment of this disclosure;

[0025] Figure 5 This is a schematic diagram of the structure after the charging terminal and the cleaning robot are properly connected in a preferred embodiment of this disclosure;

[0026] Figure 6 This is an isometric view of the cleaning robot in a preferred embodiment of this disclosure;

[0027] Figure 7 This is a schematic diagram illustrating the effect of the first type of roller brush cover in the preferred embodiment of this disclosure;

[0028] Figure 8 This is a schematic diagram illustrating the effect of the second type of roller brush cover in a preferred embodiment of this disclosure;

[0029] Figure 9 This is a schematic diagram of the principle of the cleaning robot before its shielding part comes into contact with the base station base in a preferred embodiment of this disclosure;

[0030] Figure 10 This is a schematic diagram illustrating the principle of the cleaning robot after its shielding part comes into contact with the base station base in a preferred embodiment of this disclosure;

[0031] Figure 11 This is a schematic diagram of the principle before the cleaning robot comes into contact with the sealing part on the base station in a preferred embodiment of this disclosure;

[0032] Figure 12 This is a schematic diagram illustrating the principle after the cleaning robot comes into contact with the sealing part on the base station in a preferred embodiment of this disclosure.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Base station; 11. Base station body; 12. Base; 121. Positioning groove; 122. Guide slope; 123. Sealing surface; 124. Retaining rib; 13. Cleaning tank; 14. Scraper rib; 15. Sealing part; 16. Charging terminal;

[0035] 2. Cleaning robot; 21. Cleaning robot body; 22. Liquid tank; 23. Mopping component; 24. Roller brush cover; 241. Suction port; 242. Shielding part; 2421. Elastic part; 243. Fixing frame; 244. Cover; 25. Drive wheel; 26. Guide wheel;

[0036] 3. Altitude reference line. Detailed Implementation

[0037] Those skilled in the art should understand that the embodiments described below are merely preferred embodiments of this disclosure and do not imply that this disclosure can only be implemented through these preferred embodiments. These preferred embodiments are merely used to explain the technical principles of this disclosure and are not intended to limit the scope of protection of this disclosure. Based on the preferred embodiments provided by this disclosure, all other embodiments obtained by those skilled in the art without creative effort should still fall within the scope of protection of this disclosure.

[0038] It should be noted that in the description of this disclosure, terms such as "center," "upper," "lower," "top," "bottom," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] Furthermore, it should be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can also refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0040] The cleaning system of this disclosure will now be described in detail with reference to the accompanying drawings and preferred embodiments.

[0041] like Figure 1 As shown, the cleaning system disclosed herein includes a base station 1 and a cleaning robot 2. The base station 1 is used at least to provide charging and cleaning services for the cleaning robot 2. The cleaning robot 2 is used to clean the surface to be cleaned. The cleaning robot 2 can return to the base station 1 for charging and / or cleaning according to user instructions or its own stored program instructions.

[0042] like Figure 1 and Figure 2 As shown, when the cleaning robot 2 walks near the base station 1, it connects with the base station 1 in a backward manner.

[0043] like Figures 1 to 3 As shown, base station 1 mainly includes a base station body 11, a base 12, a cleaning tank 13, a scraper 14, a sealing part 15, a charging terminal 16, a liquid supply unit, and a suction unit. The base 12 is located below the base station body 11 and is fixedly connected to or integrally formed with the base station body 11. The base 12 guides the cleaning robot 2 to connect with the base station 1. The cleaning tank 13 is formed between the base station body 11 and the base 12. The cleaning tank 13 can accommodate a portion of the cleaning robot 2 and is used to clean the cleaning robot 2. The scraper 14 is disposed within the cleaning tank 13 and protrudes upward from the bottom wall of the cleaning tank 13. The scraper 14 is used to scrape the mopping component 23 of the cleaning robot 2 to clean it. The sealing part 15 is disposed on the rear side wall of the cleaning tank 13 and, when the cleaning robot 2 is connected with the base station 1, it seals against the circumferential surface of the cleaning robot 2. A charging terminal 16 is also located within the cleaning tank 13, through which the base station 1 provides charging services to the cleaning robot 2. A liquid supply unit provides cleaning fluid to the mopping component 23 of the cleaning robot 2 to wet it. A suction unit absorbs the waste liquid within the cleaning tank 13.

[0044] like Figure 1 and Figure 2 As shown, the base 12 is provided with a positioning groove 121 located at the top of the guide slope 122. The positioning groove 121 is used to accommodate the drive wheel 25 of the cleaning robot 2 (e.g., Figure 6 (As shown). With the cleaning robot 2 connected to the base station 1, the drive wheel 25 of the cleaning robot 2 sinks into the positioning groove 121.

[0045] The cleaning robot has a shield at its bottom. When the drive wheel is positioned in the positioning groove, the shield engages with the guide ramp to prevent cleaning fluid from splashing out of the cleaning tank during cleaning. By allowing the shield to sink and seal against the top surface of the base station's base when the drive wheel of the cleaning robot sinks into the positioning groove, the shield can prevent the wastewater splashed out by the cleaning robot's wiping components, thus avoiding the wastewater flowing into the cleaning robot's suction port and contaminating it.

[0046] Specifically, the bottom of the cleaning robot is provided with water-blocking ribs, water-blocking protrusions, or water-blocking areas, which form the shielding part. That is, the shielding part and the guide slope form a line contact, point contact, or surface contact to shield the cleaning liquid. The cleaning robot includes a cleaning assembly with a roller brush, and the shielding part is located behind the roller brush in the forward direction of the cleaning robot.

[0047] Furthermore, the cleaning robot includes a sweeping assembly, which includes a roller brush, and the shielding portion is located behind the roller brush in the forward direction of the cleaning robot. This ensures that the shielding portion does not interfere with the roller brush sweeping operation of the cleaning robot. Preferably, the water-retaining rib is made of an elastic material, specifically silicone, plastic, etc.

[0048] Preferably, the bottom wall of the positioning groove 121 is arc-shaped, that is, the positioning groove 121 is an arc-shaped recessed groove to fit the circumferential surface of the drive wheel 25.

[0049] Continue reading Figure 1 and Figure 2 The top surface of the base 12 includes a guide ramp 122 and a sealing surface 123 serving as an abutment. The guide ramp 122 guides the cleaning robot 2 into the base station 1, and the sealing surface 123 abuts against the shielding portion 242 of the cleaning robot 2 (e.g., ...). Figure 9 The base 12 is adapted to the sealing surface 123 (as shown), and the front end of the sealing surface 123 is connected to the top end of the guide slope 122. Furthermore, the top surface of the base 12 also has a baffle 124 located at the rear end of the sealing surface 123.

[0050] like Figures 1 to 3 As shown, the sealing part 15 is an arc-shaped sheet structure to fit the circumferential surface of the cleaning robot 2. Of course, those skilled in the art can also set the sealing part 15 into other feasible shapes according to the shape of the cleaning robot 2, such as a long strip sheet structure (the cleaning robot is rectangular).

[0051] Preferably, the length of the sealing part 15 is 1 / 5 to 1 / 3 of the circumference of the cleaning robot 2, so as to ensure that the sealing part 15 and the cleaning robot 2, which are sealed together, can isolate the cleaning liquid in the cleaning tank 13 below the sealing part 15.

[0052] More preferably, the width of the sealing part 15 is in the range of 3mm-10mm. For example, 3mm, 4.5mm, 6.7mm, 9mm, etc.

[0053] like Figure 2 and Figure 3 As shown, the charging terminal 16 is movably disposed above the sealing portion 15 to prevent the charging terminal 16 from contacting the cleaning fluid below the sealing portion 15. Preferably, the charging terminal 16 can float back and forth and up and down relative to the base station body 11, so that the contact between the charging terminal 16 and the cleaning robot 2 is a flexible contact. This allows the charging terminal 16 to be forced to move backward and downward relative to the base station body 11 when the drive wheel 25 of the cleaning robot 2 enters the positioning groove 121.

[0054] Those skilled in the art will understand that during the process of the drive wheel 25 of the cleaning robot 2 entering the positioning slot 121, the drive wheel 35 will move backward and downward simultaneously, causing the cleaning robot 2 to also move backward and downward, making it easier to force the charging terminal 16 to move backward and downward relative to the base station body 11.

[0055] Preferably, one end of the charging terminal 16 is pivotally connected to the base station body 11, and the other end of the charging terminal 16 is in contact with the power receiving terminal of the cleaning robot 2, so that the charging terminal 16 can move backward and downward relative to the base station body 11 in a swinging manner.

[0056] The following reference Figure 4 and Figure 5 The structure of the charging terminal 16 and the matching process with the cleaning robot 2 are illustrated with an example.

[0057] like Figure 4 and Figure 5 As shown, the charging terminal 16 is pivotally connected to the base station body 11, and a torsion spring is provided between the charging terminal 16 and the base station host 11 so that the charging terminal 16 is held in place by the torsion spring under normal conditions. Figure 4 The location shown.

[0058] Continue reading Figure 4 and Figure 5When the cleaning robot 2 on the surface to be cleaned travels onto the guide ramp 122, it moves forward along the guide ramp 122, and the cleaning robot 2 is in an inclined state on the guide ramp 122. As the cleaning robot 2 moves on the guide ramp 122, the cleaning robot 2 first abuts against the sealing part 15, and then the cleaning robot 2 continues to move forward, which will squeeze the sealing part 15 and deform the sealing part 15. When the cleaning robot 2 moves to the edge of the positioning groove 121 (when it is about to enter the positioning groove 121 or has already entered a small part of the positioning groove 121), the power receiving terminal and the charging terminal 16 of the cleaning robot 2 abut (e.g., Figure 4 (As shown). Then, as the drive wheel 25 of the cleaning robot 2 moves within the positioning groove 121, the cleaning robot 2 moves forward and downward. During this period, the charging terminal 16, which abuts against the cleaning robot 2, rotates downward around its pivot axis (not marked in the figure) driven by the cleaning robot 2, and the protrusion (not marked in the figure) of the charging terminal 16 moves backward and downward relative to the base station body 11 (as shown). Figure 4 The position shown is to Figure 5 (as shown in the image), ensuring that the protrusion of the charging terminal 16 and the power receiving terminal of the cleaning robot 2 are in close contact. For example... Figure 5 As shown, after the cleaning robot 2 stabilizes at the lowest point of the positioning groove 121, the mopping component 23 of the cleaning robot 2 is located at the cleaning groove 13, and the cleaning robot 2 is in close contact with the sealing part 15. Simultaneously, the rotating charging terminal 16 causes the torsion spring to rotate, thus giving the charging terminal 16 a chance to return to its initial position (by...). Figure 5 The position shown has been restored to Figure 4 The force applied at the position shown causes the charging terminal 16 to press against the cleaning robot 2, promoting a tighter connection between the two.

[0059] Although not shown in the figure, the liquid supply unit includes a clean water tank and a delivery pump that are detachably mounted on the base station body 11. The delivery pump can deliver clean cleaning liquid from the clean water tank to the cleaning tank 13 to wet the mopping parts 23 on the cleaning robot 2.

[0060] Although not shown in the figure, the sludge suction unit includes a sludge tank and a suction pump, which can draw the sludge in the cleaning tank 13 into the sludge tank.

[0061] like Figure 1 , Figure 2 and Figure 6 As shown, the cleaning robot 2 includes a cleaning robot body 21, a liquid storage tank 22, a vacuuming system (not shown in the figure), a cleaning device (not shown in the figure), a sweeping component (not shown in the figure), a drive wheel 25 for driving the cleaning robot 2 forward, and a guide wheel 26 for guiding the direction of travel of the cleaning robot 2.

[0062] Continue reading Figure 1 , Figure 2 and Figure 6 The liquid storage tank 22 is installed at the rear of the cleaning robot body 21. Alternatively, those skilled in the art can place the liquid storage tank 22 in any other feasible location as needed, such as the front or middle of the cleaning robot body 21.

[0063] Furthermore, although not shown in the figure, the liquid storage tank 22 includes a liquid storage chamber and an electrical mounting chamber, wherein the liquid storage chamber is used to store clean cleaning liquid, and the electrical mounting chamber is equipped with at least one motor for driving the wiping component 23 to rotate.

[0064] Although not shown in the figure, the cleaning device is used to mop the surface to be cleaned, thereby cleaning the surface to be cleaned. The cleaning device includes a mopping element 23.

[0065] like Figure 6 As shown, the mopping component 23 is disposed on the lower side of the liquid storage tank 22 and is rotatably connected to the liquid storage tank 22. Furthermore, although not shown in the figure, a liquid supply hole is provided on the bottom wall of the liquid storage tank 22 at the position aligned with the mopping component 23, so that the liquid storage chamber inside the liquid storage tank 22 can drip cleaning liquid into the mopping component 23 through the liquid supply hole, providing cleaning liquid to the mopping component 23 for mopping operations and keeping the mopping component 23 moist.

[0066] It should be noted that although the wiping component 23 shown in the figure is a turntable wiping component, those skilled in the art can also set the turntable wiping component as a roller wiping component as needed.

[0067] In addition, provided that the wiping component 23 can perform normal wiping operations, those skilled in the art may, as needed, omit the liquid storage tank 22 and install the motor that drives the wiping component 23 to rotate onto the main body 21 of the cleaning robot.

[0068] Although not shown in the figure, the vacuuming system mainly includes a dust collection box and a vacuum fan located downstream of the dust collection box. The vacuum fan drives airflow to transfer dirt from below the cleaning robot 2 into the dust collection box. Furthermore, a roller brush is rotatably mounted on the cleaning robot body 21 to pick up dirt from below the cleaning robot 2. That is, the rotating roller brush assists the vacuum fan in transferring dirt from below the cleaning robot 2 into the dust collection box.

[0069] Although not explicitly shown in the figure, the cleaning assembly includes a roller brush and a roller brush cover 24. Preferably, the cleaning assembly floats up and down relative to the cleaning robot body 21. Furthermore, the cleaning assembly also includes a roller brush holder for mounting the roller brush, which is movably connected to the cleaning robot body 21 so that the roller brush holder can float up and down relative to the cleaning robot body 21. Specifically, the front part of the roller brush holder is pivotally connected to the cleaning robot body 21, and the roller brush holder, under its own weight, can float up and down in a swinging manner according to the undulations of the surface to be cleaned.

[0070] like Figure 6 As shown, the roller brush cover 24 is detachably installed on the cleaning robot body 21. The roller brush cover 24 is used to fix the roller brush to the cleaning robot body 21 and prevent the roller brush from falling off the cleaning robot body 21.

[0071] like Figure 7 and Figure 8 As shown, the specific embodiments of this disclosure provide two types of roller brush covers 24, as detailed below.

[0072] like Figure 7 As shown, the first type of roller brush cover 24 of this disclosure includes a suction port 241 that allows dirt to pass through and a shielding portion 242 that contacts the surface to be cleaned. The shielding portion 242 is located behind the suction port 241 and is a flexible structure. This shielding portion 242 prevents the roller brush from pushing dirt from the surface to be cleaned behind the suction port 241 and prevents air behind the suction port 241 from entering the suction port 241, allowing air to enter the suction port 241 from the front, left, and right sides, providing sufficient suction for the vacuuming system to pick up the surface to be cleaned.

[0073] The shielding part 242 is preferably made of an elastic material, which can be rubber, silicone, elastic plastic or any other feasible structure.

[0074] like Figure 8As shown, the second type of roller brush cover 24 of this disclosure, in addition to the suction port 241 and the shielding part 242, also includes a fixing frame 243 and a cover body 244. The fixing frame 243 is detachably connected to the main body 21 of the cleaning robot, and the cover body 244 is connected to the fixing frame 243 and can float up and down relative to the fixing frame 243. Specifically, the cover body 244 is pivotally connected to the fixing frame 243 via its front end, allowing the cover body 244 to swing up and down relative to the fixing frame 243 through this pivotal connection, thereby achieving the purpose of floating up and down. Furthermore, the shielding part 242 is fixedly connected to the fixing frame 243 via its top end and to the cover body 244 via its portion near its bottom end, so that the shielding part 242 has an elastic part 2421 located between the fixing frame 243 and the cover body 244. Under the action of this elastic part 2421, the cover body 244 always has a downward force, forcing the bottom end of the shielding part 242 to float up and down with the undulations of the surface to be cleaned. In other words, the elastic part 2421 can ensure that the bottom end of the shielding part 242 is always in contact with or closest to the surface to be cleaned.

[0075] Furthermore, although not shown in the figure, those skilled in the art can omit the elastic part 2421 as needed and provide an elastic member between the fixing frame 243 and the cover 244. This elastic member provides a downward force to the cover 244, causing the bottom end of the shielding part 242 to abut against the contact part (sealing surface 123 or baffle 124) of the base station 1 or the surface to be cleaned.

[0076] The following reference Figure 9 and Figure 10 This section will provide a detailed explanation of the sealing and contact process between the shielding part 242 on the cleaning robot 2 and the base 12 of the base station 1.

[0077] like Figure 9 As shown, the shielding part 242 on the cleaning robot 2 will not contact the sealing surface 123 before the driving wheel 25 enters the positioning groove 121 while the cleaning robot 2 is walking on the base 12.

[0078] like Figure 10 As shown, after the drive wheel 25 enters the positioning groove 121, the cleaning robot body 21 will sink, causing the shielding part 242 to descend along with the cleaning robot body 21 to abut against the sealing surface 123. Preferably, the shielding part 242 abutting against the sealing surface 123 is in a compressed state, so that the shielding part 242 presses tightly against the sealing surface 123, ensuring the reliability of the seal between the two.

[0079] Furthermore, those skilled in the art can, as needed, replace the sealing surface 123 with the baffle 124 as the abutment part of the base station 1. This allows the shielding part 242 to also abut against the baffle 124 on the rear side of the sealing surface 123 after the drive wheel 25 enters the positioning groove 121, thereby achieving a double seal.

[0080] Those skilled in the art will understand that this disclosure reduces the resistance during the climbing of the cleaning robot 2 by ensuring that the shielding part 242 does not contact the guide ramp 122 or the pressure during contact is very small when the cleaning robot 2 climbs onto the base station 1 via the guide ramp 122. By ensuring that the shielding part 242 sinks to a position where it seals against the sealing surface 123 when the cleaning robot 2 is docked with the base station 1, the seal between the shielding part 123 and the base 12 can block the dirt splashed out by the wiping component 23, thereby preventing the dirt from flowing into the suction port 241 and contaminating the suction port 241.

[0081] The following reference Figure 11 and Figure 12 This section will provide a detailed explanation of the sealing and contact process between the cleaning robot 2 and the sealing part 15 on the base station 1.

[0082] Before proceeding, it should be noted that, Figure 11 The distance L1 between the cleaning robot 2 and the height reference line 3 is greater than Figure 12 The distance L2 between the cleaning robot 2 and the height reference line 3.

[0083] like Figure 11 As shown, before the cleaning robot 2 moves on the base 12 and before the drive wheel 25 enters the positioning groove 121, the cleaning robot 2 does not contact the sealing part 15. As the cleaning robot 2 continues to move backward, it begins to contact the sealing part 15. At this time, the drive wheel 25 reaches the edge of the positioning groove 121; or it has entered the positioning groove 121, but has not yet reached the deepest part of the positioning groove 121. As the cleaning robot 2 moves further backward, the drive wheel 25 enters the positioning groove 121 and gradually sinks, causing the main body 21 of the cleaning robot to also begin to move backward and downward.

[0084] like Figure 12 As shown, when the drive wheel 25 rolls to the deepest part of the positioning groove 121, due to the backward and downward movement of the cleaning robot body 21, the circumferential surface of the cleaning robot body 21 simultaneously presses the sealing part 15 backward and downward (as shown). Figure 12 (As shown). That is, the sealing part 15 has a downward flange when it is in contact with the circumferential surface of the cleaning robot body 21.

[0085] Those skilled in the art will understand that by causing the sealing part 15 to enter the positioning groove 121 along with the drive wheel 25 of the cleaning robot 2, and being simultaneously pressed backward and downward by the circumferential surface of the cleaning robot main body 21, the sealing part 15 has a downward-facing flange when the cleaning robot 2 is docked with the base station 1. Compared to docking the sealing part 15 with the cleaning robot 2 along the extension direction of the sealing part, this avoids the situation where the sealing part 15 cannot be sealed and connected to the circumferential surface of the cleaning robot 2 due to the edges being squeezed and wrinkled by the cleaning robot 2.

[0086] When the sealing part 15 is in sealed contact with the circumferential surface of the cleaning robot 2, those skilled in the art will understand that the base station 1 and the cleaning robot 2 of this disclosure also prevent the cleaning liquid below the sealing part 15 in the cleaning tank 13 from splashing or evaporating above the sealing part 15, thus preventing corrosion of the charging terminal 16 on the base station 1 and the power receiving terminal on the cleaning robot 2.

[0087] Understandably, the abutment part can also be made of a flexible material and installed on the guide ramp, so that when the cleaning robot stops at the base station, the abutment part abuts against the bottom of the cleaning robot.

[0088] The technical solutions of this disclosure have been described in conjunction with the preceding embodiments. However, it will be readily understood by those skilled in the art that the scope of protection of this disclosure is not limited to these specific embodiments. Without departing from the technical principles of this disclosure, those skilled in the art can disassemble and combine the technical solutions in the above embodiments, and can also make equivalent changes or substitutions to the relevant technical features. Any changes, equivalent substitutions, improvements, etc., made within the technical concept and / or technical principles of this disclosure will fall within the scope of protection of this disclosure.

Claims

1. A base station for a cleaning robot, the base station comprising a cleaning tank and a movable charging terminal, the cleaning robot comprising a cleaning device provided on a bottom portion and a power receiving terminal provided on a side wall, the charging terminal being in contact with the power receiving terminal when the cleaning robot is docked with the base station, the cleaning device being cleaned in the cleaning tank, characterized in that, The base station is provided with a sealing part, the charging terminal is arranged above the sealing part, and the sealing part is in sealing abutment with the peripheral surface of the cleaning robot when the power receiving terminal of the cleaning robot is in butt joint with the charging terminal of the base station, so as to isolate the cleaning liquid in the cleaning tank below the sealing part.

2. The base station for a cleaning robot according to claim 1, characterized in that, During butt joint of the cleaning robot and the base station, the cleaning robot first abuts against the sealing part, and then the charging terminal abuts against the power receiving terminal. 3.The base station for the cleaning robot according to claim 1, characterized in that, The length of the sealing part is 1 / 5-1 / 3 of the circumference of the cleaning robot. 4.The base station for the cleaning robot according to claim 1, characterized in that, The sealing part of the robot is in arc-shaped sheet structure to adapt to the circumferential surface of the cleaning robot.

5. The base station for a cleaning robot according to any one of claims 1 to 4, characterized in that, The base station comprises a base station body and a base with a guide slope, the charging terminal is arranged on the base station body, the guide surface is provided with a positioning groove for accommodating the driving wheel of the robot, and when the driving wheel enters the positioning groove, the power receiving terminal abuts against the charging terminal, so that the charging terminal moves downward and backward relative to the base station body. 6.The base station for the cleaning robot according to claim 5, characterized in that, The charging terminal is pivotally connected with the base station body, and a torsion spring is arranged between the charging terminal and the base station host.

7. The base station for a cleaning robot according to any one of claims 1 to 4, characterized in that, The bottom of the cleaning robot is provided with a shielding part, the base station comprises a base station body and a base with a guide surface, the charging terminal is arranged on the base station body, the guide surface is provided with a positioning groove for accommodating the driving wheel of the robot, and when the driving wheel is parked in the positioning groove, the shielding part sinks and abuts against the guide slope to shield the cleaning liquid splashed from the cleaning tank. 8.The base station for the cleaning robot according to claim 7, characterized in that, The cleaning robot comprises a cleaning assembly with a rolling brush, and the shielding part is arranged at the rear side of the rolling brush of the cleaning robot in the advancing direction. 9.The base station for the cleaning robot according to claim 8, characterized in that, The cleaning assembly is arranged to be floating at the bottom of the cleaning robot, and the shielding part is arranged on the cleaning assembly to float with the cleaning assembly. 10.The base station for the cleaning robot according to claim 8, characterized in that, The cleaning assembly further comprises a rolling brush cover, the rolling brush cover comprises a fixed frame fixedly connected with the main body of the cleaning robot and a cover body connected with the fixed frame, the cover body can float up and down relative to the fixed frame, and the shielding part is fixedly connected with the cover body to make the shielding part float with the cover body. The cleaning robot comprises a cleaning assembly with a rolling brush, and the shielding part is arranged at the rear side of the rolling brush of the cleaning robot in the advancing direction.

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