Cleaning tank structure and cleaning equipment

Abstract

The utility model discloses a rinse tank structure and cleaning equipment, the rinse tank structure comprises a rinse tank, the bottom surface of the rinse tank comprises a contact area; the single scraping strip is positioned in the cleaning tank; the cleaning tank structure is configured in a way that under the condition that the mop cloth is placed on the scraping strip, the contact area can be in direct contact with the rotating mop cloth and the non-rotating mop cloth. According to the cleaning tank structure, the single scraping strip is arranged in the cleaning tank, the problem that due to the fact that the multiple scraping strips are arranged, stains remain in a water tank formed between every two adjacent scraping strips, the cleaning tank is smelly can be solved, and in the mop cleaning process, the bottom face of the cleaning tank can be cleaned when the mop rotates.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, and particularly relates to a cleaning tank structure and a cleaning device. Background Art

[0002] In the related art, a floor sweeping robot is usually used in conjunction with a base station. The floor sweeping robot can return to the base station for operations such as mopping cloth cleaning and charging. After long-term use of the base station, stains are likely to accumulate in the cleaning tank of the base station, and it is not easy to clean, resulting in the cleaning tank emitting an odor. Summary of the Utility Model

[0003] Embodiments of the present utility model provide a cleaning tank structure and a cleaning device to solve at least one of the above-mentioned technical problems.

[0004] A cleaning tank structure according to an embodiment of the present utility model includes:

[0005] A cleaning tank, the bottom surface of the cleaning tank includes a contact area;

[0006] A single scraping strip, the single scraping strip is located in the cleaning tank;

[0007] The cleaning tank structure is configured such that when the mopping cloth is placed on the scraping strip, the contact area can directly contact the mopping cloth when it is rotating and when it is not rotating.

[0008] In the above cleaning tank structure, a single scraping strip is provided in the cleaning tank, which can avoid the problem that the cleaning tank emits an odor due to the formation of a water tank where stains remain between adjacent two scraping strips caused by the setting of multiple scraping strips. Moreover, during the process of cleaning the mopping cloth, the bottom surface of the cleaning tank can also be cleaned when the mopping cloth is rotating.

[0009] In some embodiments, the scraping strip includes two opposite side surfaces, the two side surfaces face the side surface of the cleaning tank and are connected to the bottom surface of the cleaning tank, and the minimum distance from the top of the scraping strip to the bottom surface of the cleaning tank is greater than or equal to 2 mm.

[0010] In some embodiments, the cleaning tank structure includes a water inlet hole and a water outlet hole, the bottom surface of the cleaning tank is inclined from the water inlet hole to the water outlet hole, and one end of the scraping strip is close to the water inlet hole and the other end is close to the water outlet hole.

[0011] In some embodiments, the top of the scraping strip includes a first section, a second section, and a third section connected in sequence along the direction from the water inlet hole to the water outlet hole. Relative to the bottom surface of the cleaning tank, the height of the first section is greater than the height of the third section.

[0012] In some embodiments, the cleaning tank structure includes a water outlet hole and a filter member. The water outlet hole communicates with the cleaning tank, and the filter member is accommodated in the water outlet hole.

[0013] In some embodiments, the cleaning tank structure includes a drain pipe. The drain pipe communicates with the cleaning tank through the water outlet hole. A recess is provided at the bottom of the filter member, and the recess corresponds to and communicates with a communication hole formed on the hole wall of the water outlet hole by the drain pipe.

[0014] In some embodiments, the cleaning tank structure includes a water outlet hole and a drain pipe. The drain pipe communicates with the cleaning tank through the water outlet hole. A receiving cavity is provided at the bottom of the cleaning tank structure, and the drain pipe is located in the receiving cavity.

[0015] In some embodiments, the cleaning tank structure includes a first retaining strip and a second retaining strip. The first retaining strip and the second retaining strip enclose the cleaning tank. The cleaning tank structure is provided with a water inlet hole and an inlet port. The water inlet hole communicates with the cleaning tank. The first retaining strip and the second retaining strip are respectively connected to two opposite edges of the water inlet hole. Compared with the second retaining strip, the first retaining strip is closer to the inlet port.

[0016] The diameter of the circle where the first retaining strip is located is greater than the diameter of the circle where the second retaining strip is located, and the width of the first retaining strip in the horizontal direction is greater than the width of the second retaining strip in the horizontal direction.

[0017] In some embodiments, the height of the second retaining strip is greater than the height of the first retaining strip relative to the bottom surface of the cleaning tank.

[0018] In some embodiments, the connection between the second retaining strip and the side wall of the water inlet hole is closer to the center of the cleaning tank than the connection between the first retaining strip and the side wall of the water inlet hole.

[0019] In some embodiments, along the rotation direction of the mop, the connection between the second retaining strip and the side wall of the water inlet hole is located behind the connection between the first retaining strip and the side wall of the water inlet hole.

[0020] In some embodiments, the first retaining strip includes a first part and a second part. The first part connects the edge of the water inlet hole and the second part. The second part is arranged close to the inlet port. Compared with the bottom surface of the cleaning tank, the height of the second part is less than the height of the first part.

[0021] In some embodiments, the second retaining strip is provided with a detection hole, and the cleaning tank structure includes a water level detection device. The water level detection device communicates with the cleaning tank through the detection hole.

[0022] In some embodiments, the cleaning tank structure includes a third stop strip, the third stop strip connects the first stop strip and the second stop strip, and the third stop strip surrounds the water inlet hole.

[0023] In some embodiments, the cleaning tank structure is provided with an air inlet, the second stop strip is provided with a notch, and the air inlet communicates with the cleaning tank through the notch.

[0024] In some embodiments, the cleaning tank structure includes a base, and the cleaning tank is arranged inside the base.

[0025] In some embodiments, the bottom surface of the cleaning tank includes a non-contact area, and the cleaning tank structure is configured such that when the mop is placed on the squeegee, the vertical distance between the non-contact area and the plane where the mop is located ranges from (0, 3] mm.

[0026] In some embodiments, the cleaning tank structure includes a water inlet hole and a water outlet hole, the bottom surface of the cleaning tank is connected to the water inlet hole and the water outlet hole, the bottom surface of the cleaning tank is inclined from the water inlet hole towards the water outlet hole, the bottom surface of the cleaning tank is conical, the non-contact area includes at least a part of a circular area, and the circular area is a circular area formed with a preset radius centered on the center of the bottom surface of the cleaning tank.

[0027] In some embodiments, the squeegee divides the bottom surface of the cleaning tank into a first bottom surface area and a second bottom surface area;

[0028] The non-contact area includes one or a combination of two of a first non-contact area and a second non-contact area. The first non-contact area is a part of a first circular area, and the first circular area is a circular area formed with a first preset radius centered on the center of the first bottom surface area;

[0029] The second non-contact area is a part of a second circular area, and the second circular area is a circular area formed with a second preset radius centered on the center of the second bottom surface area.

[0030] In some embodiments, the cleaning tank structure is configured such that when the mop is placed inside the cleaning tank, the extrusion amount between the mop and the bottom surface of the cleaning tank ranges from [0, V1) mm, where V1 is the thickness of the mop, and / or;

[0031] The cleaning tank structure is configured such that when the mop is placed inside the cleaning tank, the horizontal distance between the edge of the mop and the side wall of the cleaning tank ranges from (0, 8] mm, and / or;

[0032] The cleaning tank structure is configured such that when the mop is placed in the cleaning tank, the range of the extrusion amount between the edge of the mop and the side wall of the cleaning tank is [0, 10] mm.

[0033] A cleaning device according to an embodiment of the present invention includes a base station, and the base station includes the cleaning tank structure according to any one of the above embodiments.

[0034] In the above cleaning device, a single squeegee is provided in the cleaning tank, which can avoid the problem that the cleaning tank emits an odor caused by the formation of a water tank where stains remain between two adjacent squeegees due to the setting of multiple squeegees. Moreover, during the process of cleaning the mop, the bottom surface of the cleaning tank can also be cleaned when the mop rotates.

[0035] Additional aspects and advantages of the present invention will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, wherein:

[0037] Figure 1 is one of the schematic structural diagrams of the cleaning tank structure according to an embodiment of the present invention;

[0038] Figure 2 is Figure 1 an enlarged view of part A in

[0039] Figure 3 is another schematic structural diagram of the cleaning tank structure according to an embodiment of the present invention;

[0040] Figure 4 is yet another schematic structural diagram of the cleaning tank structure according to an embodiment of the present invention;

[0041] Figure 5 is still another schematic structural diagram of the cleaning tank structure according to an embodiment of the present invention;

[0042] Figure 6 is yet still another schematic structural diagram of the cleaning tank structure according to an embodiment of the present invention;

[0043] Figure 7 is the schematic structural diagram of the bottom of the cleaning tank structure according to an embodiment of the present invention;

[0044] Figures 8 to 9 is the cross-sectional schematic diagram of the cleaning tank structure according to an embodiment of the present invention;

[0045] Figures 10 to 11 is the schematic structural diagram of the filter element according to an embodiment of the present invention;

[0046] Figure 12 is a top view of the mop placed on the cleaning tank structure according to an embodiment of the present utility model;

[0047] Figure 13 is a top view of the cleaning tank structure according to an embodiment of the present utility model;

[0048] Figure 14 is a schematic cross-sectional view of the mop placed on the cleaning tank structure according to an embodiment of the present utility model;

[0049] Figure 15 is a schematic structural view of the mop according to an embodiment of the present utility model;

[0050] Figure 16 is a schematic diagram showing the relationship between the vertical extrusion amount of the mop and the bottom surface of the cleaning tank and the cleaning effect according to an embodiment of the present utility model;

[0051] Figure 17 and Figure 18 is a schematic diagram showing the relationship between the horizontal extrusion amount of the mop and the bottom surface of the cleaning tank and the cleaning effect according to an embodiment of the present utility model;

[0052] Figure 19 is a top view of the cleaning tank structure according to an embodiment of the present utility model;

[0053] Figure 20 is a schematic structural view of the bottom surface of the cleaning tank according to an embodiment of the present utility model.

[0054] Reference numerals:

[0055] Cleaning tank structure 100, cleaning tank 12, scraping strip 14, side surface 16, water inlet hole 18, water outlet hole 20, first section 22,

[0056] Second section 24, third section 26, filter element 28, filter cavity 30, filter hole 32, handle 34, drain pipe 36, recess 38, communication hole 40, convex bump 42, accommodating cavity 44, water pipe interface 46, first stop strip 48, second stop strip 50, entrance 52, second connection part 54, first connection part 56, first part 58, second part 60, detection hole 62, water level detection device 64,

[0057] Third stop strip 66, air inlet 68, notch 70, base 72, contact area 76, non-contact area 78, mop 102, fluff 104, chassis 106, bottom surface of the cleaning tank 121, first bottom surface area 121a, second bottom surface area 121b, first non-contact area 781, second non-contact area 782. Detailed implementation manners

[0058] The embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0059] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In the description of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0060] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0061] In the present utility model, 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 between them. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0062] The disclosure of this document provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, components and settings of specific examples are described herein. Of course, they are merely examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between various embodiments and / or settings discussed. In addition, the present utility model provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0063] In the related art, a plurality of cleaning brackets are provided in the cleaning tank of the base station. When cleaning the mop, the mop is placed on the cleaning bracket, and the mop is driven to rotate by the mop motor, and then friction is generated with the mop bracket, and the mop is scraped by the mop bracket. However, the mutually inclined scraping strips may form dead corners for hiding stains at the intersection, and stains are also likely to be hidden in the positions between the mutually parallel scraping strips. After the cleaning tank is used for a long time, stains are likely to accumulate, and it is difficult to clean the stains, resulting in the cleaning tank emitting an odor.

[0064] Please refer Figures 1 to 3 and Figure 14 As shown in [figures] and [figures], a cleaning tank structure 100 according to an embodiment of the present utility model includes a cleaning tank 12 and a single scraping strip 14. The bottom surface 121 of the cleaning tank 12 includes a contact area 76, and the single scraping strip 14 is located in the cleaning tank 12. The cleaning tank structure 100 is configured such that when the mop 102 is placed on the scraping strip 14, the contact area 76 can be in direct contact with the mop 102 when it is rotating and when it is not rotating.

[0065] In the above cleaning tank structure 100, a single scraping strip 14 is provided in the cleaning tank 12, which can avoid the problem that the cleaning tank 12 emits an odor due to stains remaining in the water tank formed between adjacent two scraping strips 14 caused by the setting of multiple scraping strips 14. Moreover, during the process of cleaning the mop 102, the bottom surface 121 of the cleaning tank 12 can also be cleaned when the mop 102 is rotating.

[0066] Specifically, the cleaning robot includes a body and a mop 102. The mop 102 can be installed at the bottom of the body. In this embodiment, when the mop 102 is rotating, its rotation axis is substantially perpendicular to the bottom surface of the body. It can be understood that when the cleaning robot is working normally outside the station, the rotation axis of the mop 102 is substantially perpendicular to the ground. When the cleaning robot enters the station, the lowest point of the mop 102 is at a position close to the front of the base station in the cleaning tank 12, and the highest point of the mop 102 is at a position close to the rear side of the base station in the cleaning tank 12.

[0067] In Figure 1 and Figure 3In it, the cleaning tank 12 is similar to a circular shape and can be adapted to the mop 102 with a circular shape, so that the mop 102 can be cleaned in the cleaning tank 12. The cleaning tank 12 similar to a circular shape can also be adapted to the mop 102 with a triangular shape. It can be understood that in one embodiment, when the rotation center of the mop 102 remains unchanged, no matter the shape of the mop 102 is triangular, quadrilateral or other polygons, the cleaning tank 12 can be set to be similar to a circular shape to match the mop 102. In another embodiment, when the rotation center of the mop 102 changes, the cleaning tank 12 can be in an irregular shape, but the cleaning tank 12 is adapted to the mop 102 so that the mop 102 can be cleaned in the cleaning tank 12.

[0068] When the cleaning tank structure 100 is provided with a single cleaning tank 12, it can be used in matching with a cleaning robot having a single mop 102. The single mop 102 can rotate in the cleaning tank 12 in the clockwise direction R1 or the counterclockwise direction R2, and the present utility model does not make specific limitations thereto.

[0069] When the cleaning tank structure 100 is provided with two cleaning tanks 12, it can be used in matching with a cleaning robot having two mops 102. The rotation directions of the two mops 102 respectively placed in the two cleaning tanks 12 during cleaning can be the same or different. For example, in combination with Figure 3 , in one embodiment, the mop 102 placed in the left cleaning tank 12 can rotate in the clockwise direction R1, and the mop 102 placed in the right cleaning tank 12 can rotate in the counterclockwise direction R2. In one embodiment, the mop 102 placed in the left cleaning tank 12 can rotate in the counterclockwise direction R2, and the mop 102 placed in the right cleaning tank 12 can rotate in the clockwise direction R1. The present utility model does not make specific limitations thereto.

[0070] In one embodiment, when the mop 102 of the cleaning robot needs to be cleaned, the cleaning robot can enter the base station. The mop 102 can be placed on the squeegee 14. The squeegee 14 can be fixedly connected to the bottom surface 121 of the cleaning tank 12 or detachably connected to the bottom surface 121 of the cleaning tank 12. The contact area 76 between the mop 102 and the bottom surface 121 of the cleaning tank 12 is in direct contact. The cleaning robot can drive the mop 102 to rotate, so that the squeegee 14 and the mop 102 move relatively, and the squeegee 14 scrapes and washes the mop 102. While the squeegee 14 scrapes and washes the mop 102, the rotating mop 102 can contact the contact area 76. Thus, during the process of cleaning the mop 102, the rotating mop 102 can also clean the contact area 76, avoiding or reducing the sundries remaining on the bottom surface 121 of the cleaning tank 12, and further avoiding or reducing the probability of the cleaning tank structure 100 emitting an odor.

[0071] Since a single squeegee 14 is provided in the cleaning tank 12, it is possible to avoid the problem that the cleaning tank 12 emits an odor due to stains remaining in the water tank formed between two adjacent squeegees 14.

[0072] Optionally, please combine Figure 3 , the squeegee 14 extends along the radial direction of the cleaning tank 12. Thus, the length of the squeegee 14 is relatively long, and the contact area with the mop 102 is large, improving the scraping effect on the mop 102.

[0073] Optionally, the squeegee 14 and the cleaning tank 12 are connected as an integral structure. Thus, the cost of the cleaning tank structure 100 is low and the stiffness is high. For example, the cleaning tank structure 100 can be integrally manufactured by an injection molding process, so that the squeegee 14 and the cleaning tank 12 are connected as an integral structure. Optionally, the squeegee 14 and the cleaning tank 12 are detachably connected.

[0074] The illustrated cleaning tank structure 100 is provided with two cleaning tanks 12, which can be adapted to a cleaning robot with a double turntable cleaning member. A mop 102 can be provided at the bottom of each turntable cleaning member. When the turntable cleaning member rotates, the mop 102 can be driven to rotate, and the rotation axis of the mop 102 is substantially perpendicular to the bottom of the fuselage. When the two mops 102 are cleaning, the rotation directions of the two mops 102 can be the same or opposite. The present utility model does not make specific limitations on this. During the cleaning process of the cleaning robot, the rotation directions of the two mops 102 can be the same or opposite. It can be understood that in other embodiments, the cleaning tank structure 100 can also be provided with a single cleaning tank 12, which can be adapted to a cleaning robot with a single turntable cleaning member.

[0075] In some embodiments, please combine Figure 2 , the squeegee 14 includes two opposite side surfaces 16. The two side surfaces 16 face the side surface of the cleaning tank 12 and are connected to the bottom surface 121 of the cleaning tank 12. The minimum distance W from the top of the squeegee 14 to the bottom surface 121 of the cleaning tank 12 along the side surface 16 of the squeegee 14 is greater than or equal to 2 mm.

[0076] Thus, it can be ensured that the contact area between the mop 102 and the side surface 16 of the squeegee 14 is relatively large, improving the scraping effect of the squeegee 14 on the mop 102.

[0077] Specifically, in Figure 1 and Figure 3In it, the cleaning tank 12 is basically circular. The two side surfaces 16 of the scraping strip 14 face the circumferential side surface of the cleaning tank 12. The two side surfaces 16 connect the top of the scraping strip 14 and the bottom surface 121 of the cleaning tank 12. The side surface 16 of the scraping strip 14 can be the transition area from the top of the scraping strip 14 to the bottom surface 121 of the cleaning tank 12. The minimum distance W from the side surface 16 of the scraping strip 14 along the top of the scraping strip 14 to the bottom surface 121 of the cleaning tank 12 is greater than or equal to 2 mm. For example, the minimum distance W from the side surface 16 of the scraping strip 14 along the top of the scraping strip 14 to the bottom surface 121 of the cleaning tank 12 can be 2.0 mm, 2.2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm or other values greater than or equal to 2 mm. The upper limit of the minimum distance W from the side surface 16 of the scraping strip 14 along the top of the scraping strip 14 to the bottom surface 121 of the cleaning tank 12 can be specifically determined according to actual needs, and the present utility model does not make specific limitations thereon.

[0078] Optionally, along the direction from the water inlet hole 18 to the water outlet hole 20, the tops of the scraping strip 14 are not in the same horizontal plane. The top of the scraping strip 14 has multiple connecting segments with gradually decreasing slopes. Therefore, there will be multiple distances from the side surface 16 of the scraping strip 14 along the top of the scraping strip 14 to the bottom surface 121 of the cleaning tank 12. In this embodiment, the average distance of the distances from multiple connecting segments to the bottom surface 121 of the cleaning tank 12 can be taken for limitation.

[0079] The minimum distance W from the side surface 16 of the scraping strip 14 along the top of the scraping strip 14 to the bottom surface 121 of the cleaning tank 12 being greater than or equal to 2 mm can make the inclination angle of the side surface 16 of the scraping strip 14 smaller, and the top of the scraping strip 14 can be more gently transitioned to the bottom surface 121 of the cleaning tank 12. Furthermore, the contact area between the mop 102 and the side surface 16 of the scraping strip 14 can be larger, improving the scraping effect of the scraping strip 14 on the rotating mop 102.

[0080] In some embodiments, the cleaning tank structure 100 includes a water inlet hole 18 and a water outlet hole 20. The bottom surface 121 of the cleaning tank 12 is inclined from the water inlet hole 18 to the water outlet hole 20. One end of the scraping strip 14 is close to the water inlet hole 18, and the other end is close to the water outlet hole 20.

[0081] Thus, through the inclined cleaning tank 12, the stains in the cleaning tank 12 can be drained away by the water flow, especially the stains beside the scraping strip 14.

[0082] Specifically, one end of the scraping strip 14 is close to the water inlet hole 18, and the other end is close to the water outlet hole 20. Moreover, the bottom surface 121 of the cleaning tank 12 is inclined from the water inlet hole 18 towards the water outlet hole 20. When water flows into the cleaning tank 12 from the water inlet hole 18, the water can flow into the cleaning tank 12 and one end of the scraping strip 14, and flow out of the other end of the scraping strip 14 along the side of the scraping strip 14. Since the stains scraped off by the scraping strip 14 from the mop 102 are likely to accumulate on the side of the scraping strip 14, the water flow can wash out the stains on the side of the scraping strip 14, reducing or avoiding the stain residue on the side of the scraping strip 14. In addition, after the water flow enters the cleaning tank 12, it can flow towards the water outlet hole 20.

[0083] Optionally, the bottom surface 121 of the cleaning tank 12 can have an inclination angle, which is inclined from the water inlet hole 18 to the water outlet hole 20. The cleaning tank structure 100 is easy to manufacture.

[0084] Optionally, the bottom surface 121 of the cleaning tank 12 can have two or more inclination angles. The closer to the water inlet hole 18, the smaller the inclination angle of the bottom surface 121 of the cleaning tank 12, and the closer to the water outlet hole 20, the larger the inclination angle of the bottom surface 121 of the cleaning tank 12. Thus, the clear water flowing in from the water inlet hole 18 can fully wet the mop 102 on the bottom surface 121 of the cleaning tank 12 with a smaller inclination angle to clean the stains on the mop 102. Near the water outlet hole 20, the water becomes dirty, and the bottom surface 121 of the cleaning tank 12 with a larger inclination angle can make the sewage flow quickly towards the water outlet hole 20, avoiding or reducing the contact between the sewage and the mop 102, thereby avoiding or reducing the pollution of the mop 102 by the sewage. The inclination angle of the bottom surface 121 of the cleaning tank 12 can be the angle at which the bottom surface 121 of the cleaning tank 12 is inclined with respect to the horizontal plane.

[0085] In some embodiments, the top of the scraping strip 14 includes a first section 22, a second section 24, and a third section 26 connected in sequence along the direction from the water inlet hole 18 to the water outlet hole 20. Relative to the bottom surface 121 of the cleaning tank 12, the height of the first section 22 is greater than the height of the third section 26.

[0086] Thus, the first section 22 close to the water inlet hole 18 has a higher height, and the contact area between the mop 102 and the scraping strip 14 is larger. The clear water entering from the water inlet hole 18 can more easily wash off the stains on the mop 102. The height of the third section 26 is lower, and the contact area between the mop 102 and the scraping strip 14 is smaller, so the sewage is not easily stained on the mop 102.

[0087] Specifically, the second section 24 can be inclined to connect the first section 22 and the third section 26. Optionally, please combine Figure 8, the height of the first section 22 gradually decreases in the direction from the water inlet hole 18 to the water outlet hole 20, and the height of the third section 26 gradually decreases in the direction from the water inlet hole 18 to the water outlet hole 20. The height of the first section 22 may refer to the average height of the first section 22, and the height of the third section 26 may refer to the average height of the third section 26.

[0088] The height of the first section 22 is relatively large. On the one hand, the contact area between the mop 102 and the squeegee 14 at the first section 22 is relatively large. On the other hand, the first section 22 is arranged close to the water inlet hole 18, and the clear water flowing in from the water inlet hole 18 can better wet the mop 102. In summary, the scraping effect of the squeegee 14 on the mop 102 at the first section 22 can be improved.

[0089] The height of the third section 26 is relatively small. On the one hand, the contact area between the mop 102 and the squeegee 14 at the third section 26 is relatively small. On the other hand, the third section 26 is arranged close to the water outlet hole 20, and the sewage flowing towards the water outlet hole 20 has less contact with the mop 102 or does not contact the mop 102. In summary, pollution of the mop 102 by sewage can be avoided or reduced, ensuring the cleaning effect of the mop 102.

[0090] Optionally, please combine Figure 5 and Figure 8 , the third section 26 extends to the edge of the water outlet hole 20, whereby the sewage can be directed to the water outlet hole 20 faster.

[0091] Optionally, in one embodiment, the height of the first section 22 remains unchanged in the direction from the water inlet hole 18 to the water outlet hole 20, and the height of the third section 26 remains unchanged in the direction from the water inlet hole 18 to the water outlet hole 20.

[0092] Optionally, in one embodiment, the height of the first section 22 gradually decreases in the direction from the water inlet hole 18 to the water outlet hole 20, and the height of the third section 26 remains unchanged in the direction from the water inlet hole 18 to the water outlet hole 20. The height of the first section 22 may refer to the average height of the first section 22.

[0093] Optionally, in one embodiment, the height of the first section 22 remains unchanged in the direction from the water inlet hole 18 to the water outlet hole 20, and the height of the third section 26 gradually decreases in the direction from the water inlet hole 18 to the water outlet hole 20. The height of the third section 26 may refer to the average height of the third section 26.

[0094] In some embodiments, please combine Figure 1 and Figure 10 , the cleaning tank structure 100 includes a water outlet hole 20 and a filter element 28. The water outlet hole 20 communicates with the cleaning tank 12, and the filter element 28 is accommodated in the water outlet hole 20.

[0095] Thus, the filter element 28 can filter the sewage to avoid pipe blockage.

[0096] Specifically, in Figures 1 to 5 , the water outlet 20 is provided on the bottom surface 121 of the cleaning tank 12. A filter cavity 30 is provided inside the filter member 28, and filter holes 32 are provided at the bottom and / or side walls of the filter cavity 30. The sewage can flow out of the cleaning tank 12 after being filtered through the filter holes 32, and the sundries in the sewage can be left in the filter member 28, avoiding pipeline blockage and facilitating the cleaning of the sundries.

[0097] In one embodiment, the sewage after the mop 102 is scraped can flow into the filter cavity 30. At this time, the sundries in the sewage can be blocked by the filter holes 32 and left in the filter member 28, and the filtered sewage can be discharged through the water outlet 20, so that the sewage can be filtered to avoid pipeline blockage.

[0098] Optionally, the filter member 28 is detachably arranged in the water outlet 20. The sundries accumulated in the filter member 28 can be removed by detaching the filter member 28, so as to be cleaned regularly. After the cleaning is completed, the filter member 28 is reinstalled in the water outlet 20. The number and shape of the filter holes 32 are not specifically limited. The number of the filter holes 32 can be set to be multiple, and the shape of the filter holes 32 can be set not only to be circular but also to be other shapes. Optionally, a handle 34 is further provided on the filter member 28 to facilitate the user to disassemble and assemble the filter member 28.

[0099] In some embodiments, please refer to Figure 7 , Figure 8 , Figure 10 and Figure 11 , the cleaning tank structure 100 includes a drain pipe 36. The drain pipe 36 is connected to the cleaning tank 12 through the water outlet 20. A concave portion 38 is provided at the bottom of the filter member 28, and the concave portion 38 corresponds to and communicates with a communication hole 40 formed on the hole wall of the water outlet 20 of the drain pipe 36.

[0100] Thus, the concave portion 38 at the bottom of the filter member 28 corresponds to the communication hole 40, which can make the water flow more easily into the drain pipe 36.

[0101] Specifically, since the concave portion 38 corresponds to and communicates with the communication hole 40, the communication hole 40 can communicate with the space surrounded by the concave portion 38, and the filter member 28 has little or no blockage of the communication hole 40. The sewage flowing out of the filter member 28 can more easily flow into the communication hole 40 and flow out of the cleaning tank structure 100 through the drain pipe 36, so that the sewage can be discharged from the cleaning tank 12 in time. Filter holes 32 are provided on the side wall of the concave portion 38. Corresponding to the concave portion 38, a convex protrusion 42 is formed in the filter cavity 30.

[0102] In some embodiments, please refer to Figures 7 to 9, the cleaning tank structure 100 includes a water outlet hole 20 and a drain pipe 36. The drain pipe 36 communicates with the cleaning tank 12 through the water outlet hole 20. A receiving cavity 44 is provided at the bottom of the cleaning tank structure 100, and the drain pipe 36 is located in the receiving cavity 44.

[0103] Thus, since the drain pipe 36 is located in the receiving cavity 44 and the drain pipe 36 is relatively short, the cost of the cleaning tank structure 100 can be reduced.

[0104] Specifically, in one embodiment, the cleaning tank structure 100 can be manufactured by a mold. The drain pipe 36 is located in the receiving cavity 44 and does not extend out of the receiving cavity 44, so the drain pipe 36 is relatively short. On the one hand, the relatively short drain pipe 36 can use a relatively short push rod to push the drain pipe 36 out of the mold, making it easier to open the mold of the cleaning tank structure. On the other hand, the relatively short drain pipe 36 can also reduce the use of materials, reducing the cost of the cleaning tank structure 100. In summary, the cost of the cleaning tank structure 100 can be reduced.

[0105] Optionally, the drain pipe 36 has a water pipe interface 46, and the water pipe interface 46 is located in the receiving cavity 44. A pipe can be sleeved on the drain pipe 36 through the water pipe interface 46 to lead the water flow out of the cleaning tank structure 100.

[0106] In some embodiments, the cleaning tank structure 100 includes a first retaining strip 48 and a second retaining strip 50. The first retaining strip 48 and the second retaining strip 50 enclose the cleaning tank 12. The cleaning tank structure 100 is provided with a water inlet hole 18 and a station entrance 52. The water inlet hole 18 communicates with the cleaning tank 12. The first retaining strip 48 and the second retaining strip 50 are respectively connected to two opposite edges of the water inlet hole 18. Compared with the second retaining strip 50, the first retaining strip 48 is closer to the station entrance 52;

[0107] The diameter of the circle where the first retaining strip 48 is located is greater than the diameter of the circle where the second retaining strip 50 is located, and the width E1 of the first retaining strip 48 in the horizontal direction is greater than the width E2 of the second retaining strip 50 in the horizontal direction.

[0108] Thus, it is beneficial to overcome the offset error when the cleaning robot returns to the station.

[0109] Specifically, in Figure 3 , the first retaining strip 48 is the front retaining strip and the second retaining strip 50 is the rear retaining strip. The width E1 of the first retaining strip 48 in the horizontal direction is the width of the first retaining strip 48 in the left - right direction, and the width E2 of the second retaining strip 50 in the horizontal direction is the width of the second retaining strip 50 in the left - right direction.

[0110] When the cleaning robot returns to the station, it needs to cross the first retaining strip 48 and enter the cleaning tank 12. Since the first retaining strip 48 is closer to the station entrance 52 and the width E1 of the first retaining strip 48 in the horizontal direction is larger, it is beneficial for the cleaning tank structure 100 to overcome the offset error when the cleaning robot returns to the station, making it easier for the cleaning robot to enter the station.

[0111] Optionally, both the first stop bar 48 and the second stop bar 50 may be soft stop bars. Optionally, the first stop bar 48 may be a soft stop bar and the second stop bar 50 may be a hard stop bar. Optionally, both the first stop bar 48 and the second stop bar 50 may be hard stop bars. Optionally, the soft stop bar may be made of silica gel. Optionally, the hard stop bar may be made of plastic.

[0112] In some embodiments, in combination with Figure 6 , relative to the bottom surface 121 of the cleaning tank 12, the height D2 of the second stop bar 50 is greater than the height D1 of the first stop bar 48.

[0113] Thus, on the one hand, it makes it easier for the cleaning robot to enter the station. On the other hand, the higher second stop bar 50 can also prevent or reduce the splashing of sewage out of the cleaning tank 12.

[0114] Specifically, the first stop bar 48 is closer to the entry port 52. The cleaning robot needs to cross the first stop bar 48 to enter the cleaning tank 12. Relative to the bottom surface 121 of the cleaning tank 12, the height D1 of the first stop bar 48 is smaller, so the position of the first stop bar 48 is lower, reducing the resistance when the cleaning robot returns to the station and making it easier for the cleaning robot to enter the station. The second stop bar 50 is far from the entry port 52. After the cleaning robot returns to the station, the mopping cloth 102 can be placed in the cleaning tank 12. Relative to the bottom surface 121 of the cleaning tank 12, the higher second stop bar 50 can prevent or reduce the sewage in the cleaning tank 12 from spilling out of the cleaning tank 12 and avoid causing an additional cleaning burden to the user.

[0115] The diameter of the circle where the first stop bar 48 is located is greater than the diameter of the circle where the second stop bar 50 is located. When the mopping cloth 102 is located in the part of the cleaning tank 12 surrounded by the second stop bar 50, the edge of the mopping cloth 102 is closer to the second stop bar 50, and the extrusion amount of the second stop bar 50 on the mopping cloth 102 is larger, which can better clean the mopping cloth 102.

[0116] In Figure 3 , both the first stop bar 48 and the second stop bar 50 are arc-shaped to form a substantially circular cleaning tank 12. The circular cleaning tank 12 can be adapted to be used with the rotating mopping cloth 102. It can be understood that the present utility model does not specifically limit the shapes of the cleaning tank 12 and the mopping cloth 102.

[0117] Optionally, the height D2 of the second stop bar 50 may be the average height of the second stop bar 50, and the height D1 of the first stop bar 48 may be the average height of the first stop bar 48.

[0118] In some cases, the connection between the second stop bar 50 and the side wall of the water inlet hole 18 is closer to the center of the cleaning tank 12 than the connection between the first stop bar 48 and the side wall of the water inlet hole 18.

[0119] Thus, the cleaning effect of the mop 102 can be improved.

[0120] Specifically, the connection between the second bar 50 and the side wall of the water inlet hole 18 is hereinafter referred to as the second connection 54, and the connection between the first bar 48 and the side wall of the water inlet hole 18 is hereinafter referred to as the first connection 56. When the mop 102 rotates from the part of the cleaning tank 12 surrounded by the first bar 48 to the part of the cleaning tank 12 surrounded by the second bar 50 (for example, the mop 102 located in the left cleaning tank 12 in Figure 3 rotates in the clockwise direction R1, and the mop 102 located in the right cleaning tank 12 rotates in the counterclockwise direction R2), the second connection 54 is closer to the center of the cleaning tank 12 than the first connection 56. When the mop 102 rotates, the fluff of the mop 102 can beat on the second connection 54, so that the sewage and sundries on the mop 102 can be beaten off and fall into the cleaning tank 12.

[0121] When the mop 102 rotates from the part of the cleaning tank 12 surrounded by the second bar 50 to the part of the cleaning tank 12 surrounded by the first bar 48 (for example, the mop 102 located in the left cleaning tank 12 in Figure 3 rotates in the counterclockwise direction R2, and the mop 102 located in the right cleaning tank 12 rotates in the clockwise direction R1), the second connection 54 is closer to the center of the cleaning tank 12 than the first connection 56. When the mop 102 rotates, after the fluff of the mop 102 leaves the second connection 54, it can have a larger space to be thrown towards the direction where the first bar 48 is located under the action of centrifugal force, so that the sewage and sundries on the mop 102 are thrown off and fall into the cleaning tank 12.

[0122] In summary, the cleaning effect of the mop 102 can be improved.

[0123] In some embodiments, along the rotation direction of the mop 102, the connection between the second bar 50 and the side wall of the water inlet hole 18 is located behind the connection between the first bar 48 and the side wall of the water inlet hole 18.

[0124] Thus, the cleaning effect of the mop 102 can be improved.

[0125] Specifically, the connection between the second bar 50 and the side wall of the water inlet hole 18 is hereinafter referred to as the second connection 54, and the connection between the first bar 48 and the side wall of the water inlet hole 18 is hereinafter referred to as the first connection 56.

[0126] Please refer to Figure 3, when the mop 102 located in the left cleaning tank 12 is being cleaned, it rotates clockwise along the direction R1. Along the clockwise direction R1, the second connection 54 is located behind the first connection 56. When the left mop 102 is being cleaned, the mop 102 rotates clockwise along the direction R1. When the mop 102 rotates from the part of the cleaning tank 12 enclosed by the first stop strip 48 into the part of the cleaning tank 12 enclosed by the second stop strip 50, the fluff of the mop 102 can slap on the second connection 54 closer to the center of the cleaning tank 12, so that the sewage and sundries on the mop 102 can be slapped off and fall into the cleaning tank 12.

[0127] , when the mop 102 located in the right cleaning tank 12 is being cleaned, it rotates counterclockwise along the direction R2. Along the counterclockwise direction R2, the second connection 54 is located behind the first connection 56. When the right mop 102 is being cleaned, the mop 102 rotates counterclockwise along the direction R2. When the mop 102 rotates from the part of the cleaning tank 12 enclosed by the first stop strip 48 into the part of the cleaning tank 12 enclosed by the second stop strip 50, the fluff of the mop 102 can slap on the second connection 54 closer to the center of the cleaning tank 12, so that the sewage and sundries on the mop 102 can be slapped off and fall into the cleaning tank 12.

[0128] In summary, the cleaning effect of the two mops 102 can be improved.

[0129] In some embodiments, the first stop strip 48 includes a first part 58 and a second part 60. The first part 58 connects the edge of the water inlet hole 18 and the second part 60. The second part 60 is arranged close to the entrance 52. Compared with the bottom surface 121 of the cleaning tank 12, the height H2 of the second part 60 is less than the height H1 of the first part 58.

[0130] Thus, the first part 58 connects the edge of the water inlet hole 18 and has a relatively large height H1, which can prevent the mop 102 from splashing water from the edge of the water inlet hole 18. The second part 60 is relatively short, reducing the resistance for the cleaning robot to return to the station.

[0131] Specifically, the first stop strip 48 can be in an arc shape. The first stop strip 48 can enclose a part of the cleaning tank 12 and can form a side wall of the cleaning tank 12. The first stop strip 48 can be arranged on the front side close to the cleaning tank structure 100. In one embodiment, when the mop 102 is being cleaned in the cleaning tank 12, the mop 102 drives the water at the edge of the water inlet hole 18 to swing during rotation. The first part 58 is connected to the edge of the water inlet hole 18 and has a relatively large height H1. The first part 58 is relatively high, so that the mop 102 can be prevented from splashing water from the edge of the water inlet hole 18.

[0132] The second part 60 can be arranged near the entrance 52. The mopping cloth 102 of the cleaning robot enters the cleaning tank 12 from the entrance 52. The height H2 of the second part 60 is relatively small, and the second part 60 is relatively low, which is convenient for the mopping cloth 102 of the cleaning robot to cross the second part 60 and enter the cleaning tank 12.

[0133] Optionally, the first stop strip 48 is a soft stop strip (for example, made of silicone), so that the first stop strip 48 has good softness, is easy to deform and can recover from deformation, thereby avoiding excessive resistance when the cleaning robot returns to the station and protecting the mopping cloth 102 of the cleaning robot.

[0134] In some embodiments, the second stop strip 50 is provided with a detection hole 62, and the cleaning tank structure 100 includes a water level detection device 64. The water level detection device 64 communicates with the cleaning tank 12 through the detection hole 62.

[0135] Thus, by setting the water level detection device 64, the water level in the cleaning tank 12 can be monitored to prevent water from overflowing from the cleaning tank 12.

[0136] Specifically, in Figure 3 the second stop strip 50 can be in an arc shape. The second stop strip 50 can enclose another part of the cleaning tank 12 and can serve as another side wall of the cleaning tank 12. The second stop strip 50 can be arranged near the rear side of the cleaning tank structure 100. In one embodiment, when the mopping cloth 102 is being cleaned in the cleaning tank 12, the rotation of the mopping cloth 102 can drive the water at the edge of the water inlet hole 18 to splash. The first stop strip 48 and the second stop strip 50 can be respectively connected to opposite edges of the water inlet hole 18. The maximum value of the height D1 of the first stop strip 48 can be the height H1 of the first part 58, and the height D2 of the second stop strip 50 can be greater than the height H1 of the first part 58, thereby further preventing the mopping cloth 102 from splashing water from the edge of the water inlet hole 18.

[0137] One end of the second stop strip 50 far from the water inlet hole 18 is provided with a detection hole 62, and the detection hole 62 can communicate with the cleaning tank 12. The mopping cloth 102 can rotate in the cleaning tank 12, and then drive the water to various areas of the cleaning tank 12. When the water output of the water outlet hole 20 is less than the water input of the water inlet hole 18, the water level in the cleaning tank 12 will rise. The water level detection device 64 can be installed on one side of the second stop strip 50, and the water level detection device 64 can communicate with the cleaning tank 12 through the detection hole 62, thereby monitoring the water level in the cleaning tank 12 and preventing water from overflowing from the cleaning tank 12.

[0138] In some embodiments, the cleaning tank structure 100 includes a third stop strip 66. The third stop strip 66 connects the first stop strip 48 and the second stop strip 50, and the third stop strip 66 surrounds the water inlet hole 18.

[0139] Thus, the clean water can flow into the cleaning tank 12 from the water inlet hole 18.

[0140] Specifically, in Figure 1 and Figure 3 , the third retaining strip 66 can be U-shaped. One end of the third retaining strip 66 can be connected to the first part 58, and the other end can be connected to the second retaining strip 50. The bottom of the third retaining strip 66 can be connected with a base 72, and a water inlet hole 18 is surrounded by the third retaining strip 66, so that clear water can flow into the cleaning tank 12 from the water inlet hole 18.

[0141] Optionally, the end surface of the second retaining strip 50 away from the bottom surface 121 of the cleaning tank 12 (i.e., the top surface of the second retaining strip 50) and the end surface of the third retaining strip 66 away from the bottom surface 121 of the cleaning tank 12 (i.e., the top surface of the third retaining strip 66) can be located on the same horizontal plane, and the end surface of the first retaining strip 48 away from the bottom surface 121 of the cleaning tank 12 (i.e., the top surface of the first retaining strip 48) can be located below the above horizontal plane.

[0142] In some embodiments, the cleaning tank structure 100 is provided with an air inlet 68, and the second retaining strip 50 is provided with a notch 70, and the air inlet 68 communicates with the cleaning tank 12 through the notch 70.

[0143] Thus, air can enter the cleaning tank 12, and the mop 102 and the cleaning tank 12 can be dried.

[0144] Specifically, the air inlet 68 can be arranged near the rear side of the cleaning tank structure 100. In Figure 1 , a notch 70 can be opened at the position of the second retaining strip 50 close to the air inlet 68. The blower (not shown in the figure) of the base station can blow hot air into the cleaning tank 12 through the air inlet 68 and the notch 70. Since the notch 70 communicates with the air inlet 68, after the mop 102 is cleaned, the hot air can be blown to the mop 102, and at the same time, the mop 102 continues to rotate or not rotate, so that the mop 102 and the cleaning tank 12 can be dried.

[0145] In Figure 1 In the shown embodiment, the bottom surface of the air inlet 68 can be inclined towards the cleaning tank 12, so that the hot air entering from the air inlet 68 can directly blow to the cleaning tank 12 and the mop 102 in the cleaning tank 12, so that the mop 102 and the cleaning tank 12 can be dried.

[0146] In some embodiments, please refer to Figure 4 and Figure 5 , the cleaning tank structure 100 includes a base 72, and a cleaning tank 12 is arranged in the base 72.

[0147] Thus, the base 72 can provide an installation structure for the cleaning tank structure 100, which is convenient for the installation of the cleaning tank structure 100.

[0148] Specifically, in Figure 4In the illustrated embodiment, the base 72 may be similar to a long tray shape. The cleaning tank structure 100 may be mounted on the base station through the base 72. There are two cleaning tanks 12 provided on the base 72. The side walls of the two cleaning tanks 12 may be connected, and the two cleaning tanks 12 communicate with each other. Thus, the two cleaning tanks 12 can share a water outlet hole 20. Each cleaning tank 12 may also be independently provided. A single squeegee 14 is provided in each cleaning tank 12. Optionally, the base 72 may be connected to the cleaning tank 12 and the squeegee 14 as an integral structure.

[0149] In some embodiments, please refer to Figure 14 , the bottom surface 121 of the cleaning tank 12 includes a non-contact area 78, and the cleaning tank structure 100 is configured such that when the mop is placed on the squeegee 14, the vertical distance T between the non-contact area 78 and the plane P1 where the mop 102 is located ranges from (0, 3] mm.

[0150] In this way, during the process of cleaning the mop 102, the rotating mop 102 can drive the water flow to splash towards the non-contact area 78 to clean the non-contact area 78.

[0151] Specifically, in one embodiment, when the mop 102 of the cleaning robot needs to be cleaned, the cleaning robot can enter the base station. The mop 102 can be placed on the squeegee 14. The mop 102 is located in the cleaning tank 12, and the contact area 76 can be in direct contact with the non-rotating mop 102.

[0152] While the squeegee 14 is scraping and washing the mop 102, the rotating mop 102 can also be in direct contact with the contact area 76. Furthermore, during the process of cleaning the mop 102, the rotating mop 102 can also clean the contact area 76, which can avoid or reduce the debris remaining on the bottom surface 121 of the cleaning tank 12, and thus can avoid or reduce the probability of the cleaning tank structure 100 emitting an odor. In the figure, the vertical direction is the up and down direction.

[0153] Optionally, in one embodiment, the entire bottom surface of the mop 102 can be in contact with the contact area 76. Optionally, a part of the bottom surface of the mop can be separated from the bottom surface 121 of the cleaning tank 10, and thus the non-contact area 78 is formed on the bottom surface 121 of the cleaning tank 10.

[0154] The illustrated cleaning tank structure 100 is provided with two cleaning tanks 12, which can be adapted to a cleaning robot with a double turntable cleaning member. A mop 102 can be provided at the bottom of each turntable cleaning member. When the turntable cleaning member rotates, the mop 102 can be driven to rotate, and the rotation axis of the mop 102 is substantially perpendicular to the bottom of the fuselage. When the two mops 102 are cleaning, the rotation directions of the two mops 102 can be the same or opposite, and the present utility model does not make specific limitations thereto. During the cleaning process of the cleaning robot, the rotation directions of the two mops 102 can be the same or opposite. It can be understood that in other embodiments, the cleaning tank structure 100 can also be provided with a single cleaning tank 12, which can be adapted to a cleaning robot with a single turntable cleaning member.

[0155] The bottom surface 121 of the cleaning tank 12 includes a non-contact area 78. The mop 102 is placed on the squeegee 14, and the mop 102 is located inside the cleaning tank 12. While the squeegee 14 scrapes the mop 102, the vertical distance T between the non-contact area 78 and the plane P1 where the mop 102 is located ranges from (0, 3] mm. During the process of cleaning the mop 102, when the mop 102 rotates, it can drive the water flow to be thrown towards the non-contact area 78 to clean the non-contact area 78.

[0156] Optionally, in Figure 15 the illustrated embodiment, the mop 102 includes fluff 104 and a chassis 106. The fluff 104 is provided at the bottom of the chassis 106, and the vertical distance T between the non-contact area 78 and the plane P1 where the mop 102 is located can be the vertical distance between the non-contact area 78 and the plane where the fluff 104 is located.

[0157] In some cases, the vertical distance T between the non-contact area 78 and the plane P1 where the mop 102 is located can be 3 mm, 2.8 mm, 2.5 mm, 2 mm, 1.5 mm, 1 mm or other values less than or equal to 3 mm. The vertical distance T between the non-contact area 78 and the plane P1 where the mop 102 is located can be specifically determined according to actual needs, and the present utility model does not make specific limitations thereto.

[0158] Optionally, both the contact area 76 and the non-contact area 78 are flat surfaces. In one embodiment, the contact area 76 can be an inclined surface, and the non-contact area 78 can also be an inclined surface, and the slope of the non-contact area 78 is greater than the slope of the contact area 76. In one embodiment, the slope of the non-contact area 78 can also be less than the slope of the contact area 76. In one embodiment, the contact area 76 can be a horizontal surface, and the non-contact area 78 can also be a horizontal surface. In one embodiment, the contact area 76 can be a horizontal surface, and the non-contact area 78 can be an inclined surface. In one embodiment, the contact area 76 can be an inclined surface, and the non-contact area 78 can be a horizontal surface. In one embodiment, the contact area 76 can be an inclined surface, and the non-contact area 78 can also be an inclined surface, and the slope of the non-contact area 78 is equal to the slope of the contact area 76. The contact area 76 can be a curved surface or an arc surface, and the non-contact area 78 can also be a curved surface or an arc surface, or the contact area 76 can be a flat surface and the non-contact area 78 can be a curved surface or an arc surface, or the non-contact area 78 can be a flat surface and the contact area 76 can be a curved surface or an arc surface. In summary, when the mop 102 is placed on the squeegee 14, the vertical distance T between the non-contact area 78 and the mop 102 is less than or equal to 3 mm.

[0159] Please refer to Figure 16 , it can be seen from the effect diagram that when the range of the vertical distance T between the non-contact area 78 and the plane P1 where the mop 102 is located is (0, 3] mm, even in the area where the mop 102 does not contact the bottom surface 121 of the cleaning tank 12, the rotating mop 102 can still have the desired cleaning effect on the non-contact area 78, reducing the probability of the cleaning tank structure 100 emitting an odor.

[0160] Specifically, in Figure 16 , y represents the vertical extrusion amount of the mop and the bottom surface 121 of the cleaning tank 12, and the unit is mm (millimeter). When y < 0, it means that the mop 102 is separated from the bottom surface 121 of the cleaning tank 12. At this time, the absolute value of y represents the separation amount (i.e., the vertical distance T). The thickness of the mop 102 is 6.5 mm. F represents the cleaning effect after a single self-cleaning of the cleaning robot. Each time the test is carried out by spreading 5 g of yellow mud on the ground. After the cleaning robot returns to the station and undergoes a single self-cleaning, the weight z (unit: g) of the increased dirt in the cleaning tank 12 is weighed, and F = 1 - z / 5 × 100%. When the self-cleaning is carried out once, F >= 90% indicates that the cleaning effect meets the cleaning requirements.

[0161] From Figure 16It can be seen that when y >= -3 (i.e., when the vertical distance T is less than or equal to 3 mm), the cleaning effect F >= 90%, meeting the cleaning requirements. When -3 <= y < 0, the mop 102 will drive the water flow in the cleaning tank 12 during rotation, and the cleaning tank 12 is rinsed through the water flow, thereby achieving the effect of cleaning the cleaning tank 12. When y > 0, there is extrusion between the mop 102 and the bottom surface 121 of the cleaning tank 12, and the frictional force between the mop 102 and the bottom surface 121 of the cleaning tank 12 makes the cleaning effect meet the requirements. The test data is shown in Table 1 below. The smaller z is, the less yellow mud remains in the cleaning tank 12, and the better the cleaning effect on the cleaning tank.

[0162] Table 1

[0163] y z F -4 1.5 70％ -3 0.5 90％ 0 0 100％ 1.1 (occupying 1 / 6 of the mop thickness) 0 100％ 2.2 (occupying 1 / 3 of the mop thickness) 0 100％ 4.3 (occupying 2 / 3 of the mop thickness) 0 100％ 6.0 (occupying 6.0 / 6.5 of the mop thickness) 0 100％

[0164] In some embodiments, please combine Figures 19 to 20 , the cleaning tank structure 100 includes a water inlet hole 18 and a water outlet hole 20. The bottom surface 121 of the cleaning tank 12 connects the water inlet hole 18 and the water outlet hole 20. The bottom surface 121 of the cleaning tank 12 is inclined from the water inlet hole 18 towards the water outlet hole 20. The bottom surface 121 of the cleaning tank 12 is conical. The non-contact area 78 includes at least a part of the circular area T0. The circular area T0 is a circular area formed with a preset radius centered on the center of the bottom surface 121 of the cleaning tank 12.

[0165] Thus, a conical shape can be used to form the bottom surface 121 of the cleaning tank 12, and the cleaning effect requirements of the non-contact area 78 can be met.

[0166] Specifically, the conical bottom surface 121 of the cleaning tank 12 is inclined from the water inlet hole 18 towards the water outlet hole 20. The lowest point of the bottom surface 121 of the cleaning tank 12 is the position connecting the water outlet hole 20. When the mop 102 is placed in the cleaning tank 12, the mop 102 is spaced apart from at least a part of the circular area.

[0167] In Figure 19 , the left cleaning tank 12 is taken as an example for illustration. Please combine Figure 20 , since the circular area T0 is a circular area formed with a preset radius centered on the center of the bottom surface 121 of the cleaning tank 12, and the bottom surface 121 of the cleaning tank 12 is conical, therefore, the circular area T0 in the middle of the bottom surface 121 of the cleaning tank 12 is lower than the position at the edge of the bottom surface 121 of the cleaning tank 12. Compared with the edge of the bottom surface 121 of the cleaning tank 12, this circular area T0 forms a depression, which can accumulate a certain amount of water flow, and then can clean the non-contact area 78, meeting the cleaning effect requirements. It can be understood that the preset radius of the circular area T0 is smaller than the radius of the cleaning tank 12.

[0168] Optionally, in Figure 12In the [description], the middle of the mop 102 has an opening, and the bottom surface 121 of the cleaning tank 12 exposed by the opening can also be cleaned by the water flow thrown out by the fluff of the mop 102 during rotation, meeting the cleaning effect requirements. Optionally, in other embodiments, the middle of the mop 102 may not be provided with an opening.

[0169] The preset radius can be specifically defined according to requirements, and the present invention does not make specific limitations thereto.

[0170] Optionally, in other embodiments, the bottom surface 121 of the cleaning tank 12 is not limited to being conical, and may also be other shapes, and the present invention does not make specific limitations thereto.

[0171] In some embodiments, the squeegee 14 divides the bottom surface 121 of the cleaning tank 12 into a first bottom surface area 121a and a second bottom surface area 121b;

[0172] The non-contact area 78 includes one or a combination of two of the first non-contact area 781 and the second non-contact area 782. The first non-contact area 781 is a part of a first circular area, and the first circular area is a circular area formed with a first preset radius centered on the center of the first bottom surface area 121a;

[0173] The second non-contact area 782 is a part of a second circular area, and the second circular area is a circular area formed with a second preset radius centered on the center of the second bottom surface area 121b.

[0174] Thus, the squeegee 14 can be used to divide the bottom surface 121 of the cleaning tank 12 into regions, and the first bottom surface area 121a and the second bottom surface area 121b can be configured respectively to meet the cleaning effect requirements of the non-contact area 78.

[0175] Optionally, the squeegee 14 can be fixed in the cleaning tank 12, or can be detachably connected to the bottom surface 121 of the cleaning tank 12, and the present invention does not make specific limitations thereto.

[0176] Taking the left cleaning tank 12 as an example, a single squeegee 14 divides the bottom surface 121 of the cleaning tank 12 into a first bottom surface area 121a and a second bottom surface area 121b. In Figure 19 In [description], the first bottom surface area 121a is the front bottom surface area, and the second bottom surface area 121b is the rear bottom surface area.

[0177] Optionally, in Figure 19 In [description], the non-contact area 78 includes a combination of both the first non-contact area 781 and the second non-contact area 782. Optionally, the non-contact area 78 includes the first non-contact area 781 or the second non-contact area 782.

[0178] The first bottom surface region 121a is a part of the first conical bottom surface, and the second bottom surface region 121b is a part of the second conical bottom surface. Optionally, in Figure 19 , the radius of the circle where the first bottom surface region 121a is located is greater than the radius of the circle where the second bottom surface region 121b is located. Optionally, the radius of the circle where the first bottom surface region 121a is located is less than or equal to the radius of the circle where the second bottom surface region 121b is located.

[0179] The first non-contact area 781 is a part of the first circular area T1. Since the first circular area T1 is a circular area formed with the center of the first bottom surface region 121a as the center and a first preset radius, and the first bottom surface region 121a is a part of the conical bottom surface, the first circular area T1 in the middle of the first bottom surface region 121a is lower than the position at the edge of the first bottom surface region 121a. Compared with the edge of the first bottom surface region 121a, the first circular area T1 forms a depression, which can accumulate a certain amount of water flow, and then can clean the first non-contact area 781 to meet the cleaning effect requirements. It can be understood that the first preset radius is less than the radius of the first bottom surface region 121a.

[0180] The second non-contact area 782 is a part of the second circular area T2. Since the second circular area T2 is a circular area formed with the center of the second bottom surface region 121b as the center and a second preset radius, and the second bottom surface region 121b is a part of the conical bottom surface, the second circular area T2 in the middle of the second bottom surface region 121b is lower than the position at the edge of the second bottom surface region 121b. Compared with the edge of the second bottom surface region 121b, the second circular area T2 forms a depression, which can accumulate a certain amount of water flow, and then can clean the second non-contact area 782 to meet the cleaning effect requirements. It can be understood that the second preset radius is less than the radius of the second bottom surface region 121b.

[0181] Optionally, in Figure 19 , the first preset radius is equal to the second preset radius, and the center of the first circular area T1 coincides with the center of the second circular area T2 ( Figure 19 the position where the center O is located in). It can be understood that in other embodiments, the first preset radius and the second preset radius may not be equal, and the center of the first circular area T1 and the center of the second circular area T2 may not coincide.

[0182] In some embodiments, the cleaning tank structure 100 is configured such that when the mop 102 is placed in the cleaning tank 12, the range of the extrusion amount between the mop 102 and the bottom surface 121 of the cleaning tank 12 is [0, V1) mm, where V1 is the thickness of the mop 102.

[0183] In this way, the extrusion amount between the mop 102 and the bottom surface 121 of the cleaning tank 12 meets the cleaning effect requirements.

[0184] Specifically, the thickness V1 of the mop 102 is the sum of the length V2 of the fluff 104 and the thickness V3 of the chassis 106. The range of the extrusion amount between the mop 102 and the bottom surface 121 of the cleaning tank 12 is [0, V1) mm, where V1 is the thickness of the mop 102. The greater the extrusion amount between the mop 102 and the bottom surface 121 of the cleaning tank 12, the greater the frictional force between the mop 102 and the bottom surface 121 of the cleaning tank 12, and the better the cleaning effect. It should be noted that when the extrusion amount between the mop 102 and the bottom surface 121 of the cleaning tank 12 is close to the thickness V1 of the mop 102, the frictional force between the mop 102 and the bottom surface 121 of the cleaning tank 12 is relatively large. At this time, it is still within the range where the mop 102 can rotate (that is, the motor of the cleaning robot can still drive the mop 102 to rotate), and it will not affect the cleaning of the mop 102.

[0185] In some examples, the extrusion amount between the mop 102 and the bottom surface 121 of the cleaning tank 12 can be 0 mm, (1 / V1) mm, (2 / V1) mm, (3 / V1) mm, (4 / V1) mm, (5 / V1) mm, or other values within [0, V1). The present invention does not make specific limitations on this. The extrusion amount between the mop 102 and the bottom surface 121 of the cleaning tank 12 being 0 mm indicates the situation where the fluff 104 contacts the bottom surface 121 of the cleaning tank 12 without being extruded.

[0186] In certain embodiments, please refer to Figure 14 , the cleaning tank structure 100 is configured such that when the mop 102 is placed in the cleaning tank 12, the range of the horizontal distance between the edge of the mop 102 and the side wall of the cleaning tank 12 is (0, 8] mm.

[0187] In this way, the water on the mop 102 is thrown onto the side wall of the cleaning tank 12 under the action of centrifugal force, realizing the cleaning of the side wall of the cleaning tank 12.

[0188] Specifically, when the mop 102 is placed in the cleaning tank 12 and rotates and is cleaned on the squeegee 14, the edge of the mop 102 can maintain a certain horizontal distance U from a part of the side wall of the cleaning tank 12 (such as Figure 14 the front side wall of the cleaning tank 12 shown). The range of the horizontal distance U between the edge of the mop 102 and the side wall of the cleaning tank 12 is (0, 8] mm. For example, the horizontal distance U between the edge of the mop 102 and the side wall of the cleaning tank 12 can be 8 mm, 7.8 mm, 7.5 mm, 6 mm, 5.5 mm, 5 mm, or other values less than or equal to 8 mm. The horizontal distance U between the edge of the mop 102 and the side wall of the cleaning tank 12 can be specifically determined according to actual needs, and the present invention does not make specific limitations on this.

[0189] The horizontal distance U between the edge of the mop 102 and the side wall of the cleaning tank 12 ranges from (0, 8] mm. When the mop 102 rotates and is cleaned on the squeegee 14, the water on the mop 102 is thrown onto the side wall of the cleaning tank 12 under the action of centrifugal force, and the water can clean the side wall of the cleaning tank 12, thereby realizing the cleaning of the side wall of the cleaning tank 12. In addition, the range of the horizontal distance U between the edge of the mop 102 and the side wall of the cleaning tank 12 being (0, 8] mm is also beneficial for the cleaning robot to place the mop 102 in the cleaning tank 12 and is easy to position.

[0190] Please combine Figure 17 , it can be seen from the effect diagram that when the horizontal distance U between the edge of the mop 102 and the side wall of the cleaning tank 12 ranges from (0, 8] mm, even if the edge of the mop 102 does not contact the side wall of the cleaning tank 12, the rotating mop 102 can still have an expected cleaning effect on the area of the side wall of the cleaning tank 12 that is not in contact, reducing the probability of the cleaning tank structure emitting an odor.

[0191] Specifically, in Figure 17 , x represents the horizontal extrusion amount between the edge of the mop 102 and the side wall of the cleaning tank 12 (if there is a retaining strip, it is the side of the retaining strip facing the cleaning tank 12), and the unit is mm. When x < 0, it means that the edge of the mop 102 is isolated from the side wall of the cleaning tank 12, and the absolute value of x represents the isolation amount, that is, the horizontal distance U. F represents the cleaning effect after a single self-cleaning of the cleaning robot. Each time the test is carried out, 5 g of yellow mud is scattered on the ground. After the cleaning robot returns to the station and undergoes a single self-cleaning, the weight z (unit: g) of the dirt added to the cleaning tank is weighed, and F = 1 - z / 5 × 100%. When the self-cleaning is carried out once, when F >= 90%, the cleaning effect meets the cleaning requirements.

[0192] In this test, the y value is fixed. For example, when y = 1 mm, it can be seen from Figure 17 that when -8 <= x <= 10, the cleaning effect F >= 90%, meeting the cleaning requirements. When x < -8, the distance between the side wall of the cleaning tank 12 and the edge of the mop 103 is too far, and when the mop 102 rotates, the side wall of the cleaning tank cannot be cleaned even relying on the water flow and the fluff 104, there is a blind area, and the cleaning effect is not good; when x > 10, the mop 102 is overly squeezed against the side wall of the cleaning tank, and the mop 102 will have a bulging effect, resulting in part of the area being separated from the bottom surface 121 of the cleaning tank 12, and the isolation amount is very large, affecting the cleaning effect. The test data is shown in Table 2 below.

[0193] Table 2 (y = 1 mm) (1 / 6.5 of the thickness of the mop 102)

[0194] x z F -10 1 80％ -8 0.5 90％ -4 0 100％ 0 0 100％ 4 0 100％ 8 0.2 96％ 10 0.48 90.4％ 12 1.2 76％

[0195] Optionally, in the embodiment shown in the figure, the cleaning tank 12 is surrounded by stop bars (the first stop bar 48 and the second stop bar 50), and the distances between the mop 102 and the side walls of the cleaning tank 12 include the distance between the mop 102 and the first stop bar 48 and the distance between the mop 102 and the second stop bar 50.

[0196] Optionally, the cleaning tank 12 can be formed by a depression provided on the top surface of the base. The present utility model does not make specific limitations on this.

[0197] In some embodiments, the cleaning tank structure 100 is configured such that when the mop 102 is placed in the cleaning tank 12, the range of the extrusion amount between the edge of the mop 102 and the side wall of the cleaning tank 12 is [0, 10] mm.

[0198] In this way, the extrusion amount between the edge of the mop and the side wall of the cleaning tank can achieve the desired cleaning effect.

[0199] Specifically, when the mop 102 is placed in the cleaning tank 12 and rotates for cleaning on the squeegee 14, the edge of the mop 102 can come into contact with and be in contact extrusion with a part of the side wall of the cleaning tank 12 (such as Figure 14 the rear side wall of the cleaning tank 12 shown), be spaced from a part of the side wall, or the edge of the mop 102 is in contact extrusion with all the side walls of the cleaning tank 12. Optionally, the range of the extrusion amount between the edge of the mop 102 and the side wall of the cleaning tank 12 is [0, 10] mm. For example, the extrusion amount between the edge of the mop 102 and the side wall of the cleaning tank 12 can be 10 mm, 9.8 mm, 9.5 mm, 9 mm, 8.5 mm, 8 mm, 7.5 mm, 7 mm, 6.5 mm, 6 mm, 5.5 mm, 5 mm, 4.5 mm, 4 mm, 3.5 mm, 3 mm, 2.5 mm, 2 mm, 1.5 mm, 1 mm, 0.5 mm, 0 mm, or other values within [0, 10] mm. The extrusion amount between the edge of the mop 102 and the side wall of the cleaning tank 12 can be specifically determined according to actual needs, and the present utility model does not make specific limitations on this.

[0200] The range of the extrusion amount between the edge of the mop 102 and the side wall of the cleaning tank 12 is [0, 10] mm. When the extrusion between the mop 102 and the side wall of the cleaning tank 12 reaches the maximum extrusion amount, the frictional force between the mop 102 and the side wall of the cleaning tank 12 is relatively large, which can meet the cleaning effect requirements. It should be noted that when the range of the extrusion amount between the edge of the mop 102 and the side wall of the cleaning tank 12 is [0, 10] mm, the mop 102 can still rotate (that is, the motor of the cleaning robot can still drive the mop 102 to rotate), and it will not cause the motor to operate overloaded, nor will it affect the cleaning of the mop 102 rotation.

[0201] Optionally, when the maximum extrusion amount is reached between the mopping cloth 102 and the side wall of the cleaning tank 12, and when the maximum extrusion amount is reached between the mopping cloth 102 and the bottom surface 121 of the cleaning tank 12, the mopping cloth 102 can still rotate (i.e., the motor of the cleaning robot can still drive the mopping cloth 102 to rotate), which will not cause the motor to operate overloaded and will not affect the cleaning of the mopping cloth 102 rotation.

[0202] Optionally, the extrusion amount of the mopping cloth 102 is fixed in the vertical direction, and the maximum compression amount and the maximum isolation amount of the mopping cloth in the horizontal direction from the side wall of the cleaning tank 12 are explored.

[0203] Please combine Figure 18 , because the extrusion amount of the mopping cloth 102 in the vertical direction has a more important effect on the cleaning effect. When the extrusion amount of the mopping cloth 102 in the vertical direction is relatively large (close to the critical value, y = 6.0 mm, and the extrusion amount accounts for 6.0 / 6.5 of the thickness of the mopping cloth 102), when the mopping cloth 102 meets the cleaning requirements, the range in the horizontal direction x, and explore whether the y value affects the x range that meets the cleaning requirements.

[0204] From Figure 18 It can be seen that when y = 6 mm, when -8 <= x <= 10, the cleaning effect F >= 90%, meeting the cleaning requirements. At the same time, compared with Table 1, it is found that the y value has no obvious influence on the x range that meets the cleaning requirements. Because the y value mainly affects the cleaning effect in the vertical direction, when the y value reaches the cleaning requirement, it will not have an obvious influence on the effective value of x. The test data is shown in Table 3 below.

[0205] Table 3 (y = 6 mm) (6.0 / 6.5 of the thickness of the mopping cloth 102)

[0206] x z F -10 1 80％ -8 0.4 92％ -4 0 100％ 0 0 100％ 4 0 100％ 8 0.1 98％ 10 0.45 91％ 12 1.3 74％

[0207] It should be noted that the test data is the data obtained by taking the average value after multiple tests with the thickness of the mopping cloth 11 being 6.5 mm in the above tests.

[0208] A cleaning device according to an embodiment of the present invention includes a base station, and the base station includes the cleaning tank structure 100 of any of the above embodiments.

[0209] In the above cleaning device, a single squeegee 14 is provided in the cleaning tank 12, which can avoid the problem that the cleaning tank 12 emits an odor due to the formation of a water tank where stains remain between two adjacent squeegees 14 caused by setting multiple squeegees 14. Moreover, during the process of cleaning the mopping cloth 102, the mopping cloth 102 can also clean the bottom surface 121 of the cleaning tank 12 when rotating.

[0210] Optionally, in one embodiment, the cleaning device may include a base station. In another embodiment, the cleaning device may include a base station and a cleaning robot.

[0211] Specifically, the base station includes a housing, and a receiving space may be provided at a position near the bottom of the housing. The cleaning tank structure 100 can be installed in the receiving space, and the opening of the receiving space can communicate with the external environment. The base station further includes a climbing plate, and the climbing plate can be connected to the edge of the receiving space near the bottom of the base station. The cleaning robot can send the mop 102 into the cleaning tank 12 through the climbing plate. It can be understood that the cleaning tank structure 100 can be provided not only in the base station, but also on other devices for cleaning the components of other devices.

[0212] The cleaning robot includes a double-rotary cleaning robot (with two mops 102) and a single-rotary cleaning robot (with a single mop 102). The rotation axis of the mop 102 is perpendicular to the body of the cleaning robot. Figure 12 In the illustrated embodiment, the cleaning tank structure 100 can be used in cooperation with the double-rotary cleaning robot. After the cleaning is completed, the cleaning robot can return to the base station, place the mop 102 in the cleaning tank 12 for cleaning, and at the same time, the base station can also perform operations such as charging and dust collection on the cleaning robot. After the mop 102 of the cleaning robot is cleaned or the cleaning robot is charged, the cleaning robot can leave the base station to continue the cleaning work, or stay at the base station until waiting for the next cleaning instruction.

[0213] Optionally, the base station and the cleaning tank structure 100 can be integrated, and there is no need to remove the cleaning tank structure 100 for cleaning. Optionally, the cleaning tank structure 100 can also be detachably installed on the base station. The cleaning tank structure 100 can be used as a detachable part, and the user can take it out for cleaning.

[0214] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0215] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A cleaning tank structure, characterized in that, Comprising: A cleaning tank, the bottom surface of the cleaning tank including a contact area; A single squeegee, the single squeegee being located within the cleaning tank; The cleaning tank structure is configured such that when a mop is placed on the squeegee, the contact area can directly contact the mop when the mop is rotating and when it is not rotating.

2. The cleaning tank structure according to claim 1, characterized in that The squeegee includes two opposite side surfaces, the two side surfaces facing the side surface of the cleaning tank and connecting to the bottom surface of the cleaning tank, and the minimum distance from the top of the squeegee to the bottom surface of the cleaning tank along the side surface is greater than or equal to 2 mm.

3. The cleaning tank structure according to claim 1, characterized in that, The cleaning tank structure includes a water inlet hole and a water outlet hole, and the bottom surface of the cleaning tank is inclined from the water inlet hole towards the water outlet hole, with one end of the squeegee close to the water inlet hole and the other end close to the water outlet hole.

4. The cleaning tank structure according to claim 3, wherein, The top of the squeegee includes a first section, a second section, and a third section connected in sequence along the direction from the water inlet hole to the water outlet hole. Relative to the bottom surface of the cleaning tank, the height of the first section is greater than the height of the third section.

5. The cleaning tank structure according to claim 1, characterized in that, The cleaning tank structure includes a water outlet hole and a filter element, the water outlet hole communicating with the cleaning tank, and the filter element being accommodated in the water outlet hole.

6. The cleaning tank structure according to claim 5, characterized in that The cleaning tank structure includes a drain pipe, the drain pipe communicating with the cleaning tank through the water outlet hole, and a recess is provided at the bottom of the filter element, the recess corresponding to and communicating with a communication hole formed on the hole wall of the water outlet hole by the drain pipe.

7. The cleaning tank structure according to claim 1, wherein The cleaning tank structure includes a water outlet hole and a drain pipe, the drain pipe communicating with the cleaning tank through the water outlet hole, and a receiving cavity is provided at the bottom of the cleaning tank structure, the drain pipe being located within the receiving cavity, and / or; The cleaning tank structure includes a first retaining strip and a second retaining strip, the first retaining strip and the second retaining strip enclosing the cleaning tank, the cleaning tank structure being provided with a water inlet hole and an inlet port, the water inlet hole communicating with the cleaning tank, the first retaining strip and the second retaining strip being respectively connected to two opposite edges of the water inlet hole, and compared with the second retaining strip, the first retaining strip is closer to the inlet port; The diameter of the circle where the first retaining strip is located is greater than the diameter of the circle where the second retaining strip is located, and the width of the first retaining strip in the horizontal direction is greater than the width of the second retaining strip in the horizontal direction.

8. The cleaning tank structure according to claim 7, wherein, Relative to the bottom surface of the cleaning tank, the height of the second retaining strip is greater than the height of the first retaining strip, and / or; The connection point of the second retaining strip and the side wall of the water inlet hole is closer to the center of the cleaning tank compared with the connection point of the first retaining strip and the side wall of the water inlet hole.

9. The cleaning tank structure according to claim 8, characterized in that, Along the rotation direction of the mop, the connection point of the second retaining strip and the side wall of the water inlet hole is located behind the connection point of the first retaining strip and the side wall of the water inlet hole.

10. The cleaning tank structure according to claim 7, characterized in that, The first retaining strip includes a first part and a second part, the first part connecting the edge of the water inlet hole and the second part, the second part being arranged close to the inlet port, and compared with the bottom surface of the cleaning tank, the height of the second part is less than the height of the first part, and / or; The second retaining strip is provided with a detection hole, the cleaning tank structure includes a water level detection device, and the water level detection device communicates with the cleaning tank through the detection hole, and / or, the cleaning tank structure includes a third retaining strip, the third retaining strip connects the first retaining strip and the second retaining strip, and the third retaining strip is provided with the water inlet hole around it; and / or, the cleaning tank structure is provided with an air inlet, the second retaining strip is provided with a notch, and the air inlet communicates with the cleaning tank through the notch.

11. The cleaning tank structure according to any one of claims 1-10, characterized in that, The cleaning tank structure includes a base, and the cleaning tank is arranged inside the base.

12. The cleaning tank structure according to claim 1, wherein, The bottom surface of the cleaning tank includes a non-contact area, and the cleaning tank structure is configured such that when the mop is placed on the squeegee, the vertical distance between the non-contact area and the plane where the mop is located ranges from (0, 3] mm.

13. The cleaning tank structure according to claim 12, characterized in that, The cleaning tank structure includes a water inlet hole and a water outlet hole, the bottom surface of the cleaning tank is connected to the water inlet hole and the water outlet hole, the bottom surface of the cleaning tank is inclined from the water inlet hole towards the water outlet hole, the bottom surface of the cleaning tank is conical, and the non-contact area includes at least a part of a circular area, and the circular area is a circular area formed with a preset radius centered on the center of the bottom surface of the cleaning tank.

14. The cleaning tank structure according to claim 13, wherein, The squeegee divides the bottom surface of the cleaning tank into a first bottom surface area and a second bottom surface area; The non-contact area includes one or a combination of two of the first non-contact area and the second non-contact area. The first non-contact area is a part of a first circular area, and the first circular area is a circular area formed with a first preset radius centered on the center of the first bottom surface area; The second non-contact area is a part of a second circular area, and the second circular area is a circular area formed with a second preset radius centered on the center of the second bottom surface area.

15. The cleaning tank structure according to any one of claims 12-14, characterized in that, The cleaning tank structure is configured such that when the mop is placed in the cleaning tank, the extrusion amount between the mop and the bottom surface of the cleaning tank ranges from [0, V1) mm, where V1 is the thickness of the mop, and / or; The cleaning tank structure is configured such that when the mop is placed in the cleaning tank, the horizontal distance between the edge of the mop and the side wall of the cleaning tank ranges from (0, 8] mm, and / or; The cleaning tank structure is configured such that when the mop is placed in the cleaning tank, the extrusion amount between the edge of the mop and the side wall of the cleaning tank ranges from (0, 10] mm.

16. A cleaning device, characterized in that, It includes a base station, and the base station includes the cleaning tank structure according to any one of claims 1-15.

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