Base plate apparatus, cleaning base station, and cleaning system

Abstract

Provided are a base plate apparatus, a cleaning base station, and a cleaning system. The base plate apparatus comprises a base plate assembly (11), a scraping assembly (12), a threaded structure (13), and a limiting structure. The base plate assembly (11) and the scraping assembly (12) are connected by means of the threaded structure (13). The limiting structure is formed between the base plate assembly (11) and the scraping assembly (12), and the limiting structure is used for limiting the movement range of the scraping assembly (12) in the height direction of the base plate assembly (11). When a cleaning cloth assembly (2) in the cleaning device rotates bidirectionally and moves between a low position and a high position, the cleaning cloth assembly (2) can drive the scraping assembly (12) to move between a first position and a second position. The base plate apparatus can achieve bidirectional cleaning of the cleaning cloth assembly, and the cleaning efficiency and cleaning effect of the cleaning cloth can be improved.

Description

Chassis device, cleaning base station and cleaning system Cross-reference to Related Applications

[0001] The present application is entitled to the priority of the patent application with the application number 2024113402887 and the title of "Chassis device, cleaning base station and cleaning system" filed with the China National Intellectual Property Office on September 24, 2024, and the patent application with the application number 202422334291X and the title of "Chassis device, cleaning base station and cleaning system" filed with the China National Intellectual Property Office on September 24, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to a chassis device, a cleaning base station and a cleaning system. BACKGROUND

[0003] For cleaning of the cleaning cloth on the cleaning robot, the cleaning robot usually returns to the cleaning base station to complete the cleaning of the cleaning cloth in the cleaning base station. However, the cleaning scheme for cleaning the cleaning cloth in the cleaning base station can only clean the cleaning cloth in one direction. SUMMARY

[0004] The first aspect of the present application provides a chassis device, comprising a chassis assembly, a scraping and cleaning assembly and a threaded structure, the chassis assembly and the scraping and cleaning assembly are connected through the threaded structure;

[0005] A limiting structure is formed between the chassis assembly and the scraping and cleaning assembly, and the limiting structure is used to limit the movement range of the scraping and cleaning assembly in the height direction of the chassis assembly;

[0006] When the cleaning cloth assembly in the cleaning device rotates bidirectionally and moves between the low position and the high position, the chassis assembly and the scraping and cleaning assembly are connected through the threaded structure.

[0007] In a possible implementation, the chassis assembly comprises a chassis body and a cleaning disc, the cleaning disc is arranged on the chassis body, and the chassis body or the cleaning disc is connected with the scraping and cleaning assembly through the threaded structure.

[0008] In a possible implementation, when the cleaning cloth assembly in the cleaning device rotates bidirectionally and moves between the low position and the high position, the cleaning cloth assembly drives the scraping and cleaning assembly to rotate and lift through the threaded structure.

[0009] In a possible implementation, the scraping and cleaning assembly comprises a scraping and cleaning column, the chassis assembly comprises a base column, the base column is arranged on the chassis body or the cleaning disc, and the scraping and cleaning column is connected with the base column through the threaded structure.

[0010] The limiting structure comprises a first limiting structure and a second limiting structure, and the first limiting structure and the second limiting structure are respectively formed at opposite ends of the threaded structure along the height direction of the chassis assembly.

[0011] In an implementation, the threaded structure comprises a spiral groove and a matching protrusion, and the matching protrusion is slidable in the spiral groove.

[0012] In an implementation, the scrubbing column comprises a connecting column, the spiral groove is formed on the outer circumferential side of the connecting column, the base column is in a cylindrical structure, the matching protrusion is arranged on the inner circumferential side of the base column, and the scrubbing column is inserted into the base column from the free end of the base column.

[0013] In an implementation, one end of the connecting column inserted into the base column is a connecting column insertion end, one end of the spiral groove away from the connecting column insertion end is a spiral abutting end face, and when the scrubbing assembly is in the first position, the spiral abutting end face abuts against the matching protrusion to form the first limiting structure.

[0014] In an implementation, the connecting column comprises a first section and a second section, the first section is connected to the second section, the spiral groove is arranged on the first section, one end of the second section away from the first section is the connecting column insertion end, the diameter of the second section is smaller than that of the first section, one end of the spiral groove is close to the end face of the second section, and a limiting piece is arranged on the second section, and when the scrubbing assembly is in the second position, the limiting piece abuts against the matching protrusion to form the second limiting structure.

[0015] In an implementation, the limiting piece comprises a sleeve and an abutting protrusion, the abutting protrusion is connected to the sleeve, the sleeve is sleeved on the second section, and the abutting protrusion is arranged at one end of the spiral groove close to the connecting column insertion end.

[0016] In an implementation, the spiral groove is two or more, one or more matching protrusions are matched in each spiral groove, the number of abutting protrusions is consistent with the number of spiral grooves, and the abutting protrusions are respectively arranged at one end of the corresponding spiral groove close to the connecting column insertion end.

[0017] In an implementation, the base column is provided with a base hole, the scrubbing column is provided with a scrubbing hole, the connecting column is arranged in the scrubbing column and there is a gap between the connecting column and the scrubbing hole, the base column is inserted into the scrubbing hole, and the connecting column is inserted into the base hole.

[0018] The second aspect of the application provides a cleaning base station comprising the chassis device provided in any of the technical solutions.

[0019] The third aspect of the present application provides a cleaning system, comprising a cleaning device and the cleaning base station provided in the above technical solution; the cleaning device comprises a cleaning cloth assembly and a cleaning cloth driving assembly, the cleaning cloth driving assembly is connected with the cleaning cloth assembly, the cleaning cloth driving assembly is used for driving the cleaning cloth assembly to rotate bidirectionally and move between a low position and a high position, and the cleaning cloth assembly drives the scraping and cleaning assembly to move between a first position and a second position, and the scraping and cleaning assembly is rotationally fixed in the first position and the second position.

[0020] In a feasible implementation, the cleaning cloth driving assembly comprises a driving motor, a first connecting piece, a second connecting piece and a cleaning cloth limiting assembly, the driving motor is in transmission connection with the first connecting piece, the first connecting piece is in threaded connection with the second connecting piece, the first connecting piece is fixedly connected with the cleaning cloth assembly, the cleaning cloth limiting assembly is used for limiting the movement range of the first connecting piece relative to the second connecting piece along the first direction, and the thread angle of the thread structure on the chassis device is greater than the thread angle between the first connecting piece and the second connecting piece.

[0021] In a feasible implementation, the thread angle of the thread structure is greater than 1.5 times the thread angle between the first connecting piece and the second connecting piece. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0023] Fig. 1 is a schematic view of the chassis device provided in the embodiments of the present application;

[0024] Fig. 2 is a schematic view of the cooperation between the chassis device and the cleaning cloth assembly provided in the embodiments of the present application;

[0025] Fig. 3 is an exploded schematic view of the cooperation between the chassis device and the cleaning cloth assembly provided in the embodiments of the present application;

[0026] Fig. 4 is an exploded schematic view of the chassis device provided in the embodiments of the present application;

[0027] Fig. 5 is a top view of the chassis device provided in the embodiments of the present application;

[0028] Fig. 6 is a sectional view along A-A in Fig. 5;

[0029] Fig. 7 is an exploded schematic view of the chassis assembly provided in the embodiments of the present application;

[0030] Fig. 8 is a schematic view of the scraping and cleaning assembly provided in the embodiments of the present application;

[0031] Fig. 9 is a schematic view of a bottom plate assembly according to an embodiment of the present application;

[0032] Fig. 10 is an enlarged view of B in Fig. 9;

[0033] Fig. 11 is a top view of a wiping assembly according to an embodiment of the present application;

[0034] Fig. 12 is a sectional view of B-B in Fig. 11;

[0035] Fig. 13 is an enlarged view of A in Fig. 6 (the wiping assembly is in a second position);

[0036] Fig. 14 is a sectional view of the wiping assembly in a first position;

[0037] Fig. 15 is a sectional view of a bottom plate device, a wiping cloth assembly and a wiping cloth driving assembly according to an embodiment of the present application;

[0038] Fig. 16 is an enlarged view of C in Fig. 15;

[0039] Fig. 17 is a schematic view of a wiping cloth driving assembly according to an embodiment of the present application;

[0040] Fig. 18 is a schematic view of the internal structure of a wiping cloth driving assembly according to an embodiment of the present application.

[0041] In the drawings, reference numerals: 1 - bottom plate device; 2 - wiping cloth assembly; 3 - wiping cloth driving assembly; 11 - bottom plate assembly; 12 - wiping assembly; 13 - threaded structure; 14 - limiting member; 111 - bottom plate main body; 112 - cleaning plate; 113 - base column body; 114 - avoiding hole; 1131 - base hole; 1132 - guide column; 1133 - base protruding strip; 1134 - base step; 121 - wiping column body; 122 - support; 123 - wiping structure; 124 - upper end face; 1211 - wiping hole; 1212 - connecting column; 1213 - guide hole; 1214 - scraping strip insertion end; 1215 - wiping step; 12121 - first section; 12122 - second section; 12123 - helical rib; 131 - helical groove; 132 - matching protrusion; 133 - helical abutting end face; 141 - abutting protrusion; 142 - sleeve body; 21 - wiping cloth plate; 22 - wiping cloth; 211 - plate hole; 31 - housing; 32 - driving motor; 33 - intermediate transmission structure; 34 - first connecting member; 35 - second connecting member; 36 - bearing; 37 - limiting component; 38 - first component; 39 - second component; 310 - spring; 331 - worm; 332 - worm wheel; 333 - first gear; 334 - second gear; 341 - mounting hole; 342 - threaded groove; 351 - annular portion. DETAILED DESCRIPTION

[0042] In order to make the objects, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the drawings. The embodiments described by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0043] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "thickness", "top", "bottom", "inner", "outer", "upper", "lower", "left", "right" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0044] In order to clearly describe the technical solutions of the present application, the terms "first", "second" and the like are used to distinguish the same items or similar items with basically the same function and effect. Those skilled in the art can understand that the terms "first", "second" and the like do not limit the quantity and execution order, and the terms "first", "second" and the like do not necessarily mean different.

[0045] In the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. Those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0046] In the present application, "and / or" is only a description of the association relationship of the associated objects, which means that there can be three kinds of relationships; for example, A and / or B can mean that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are in an "or" relationship.

[0047] It should be noted that in the present application, the words "in an embodiment", "exemplarily", "for example" and the like are used to indicate as an example, illustration or explanation. Any embodiment or design scheme described as "in an embodiment", "exemplarily", "for example" in the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the words "in an embodiment", "exemplarily", "for example" and the like are intended to present the relevant concept in a specific way.

[0048] In the related art, for cleaning the cleaning cloth on the cleaning robot, the cleaning scheme used for cleaning the cleaning cloth in the cleaning base station can only clean the cleaning cloth in one direction. However, the cleaning cloth used by the cleaning robot is mostly long pile, and the cleaning cloth is cleaned in one direction, which can cause a large amount of dust to be hidden in the back of the pile, and the cleaning effect of the cleaning cloth is poor.

[0049] The embodiment of the present application provides a chassis device, a cleaning base station and a cleaning system to solve the technical problem of poor cleaning effect of the cleaning cloth of the cleaning robot in the cleaning base station. The embodiment of the present application relates to the technical field of smart home.

[0050] FIG. 1 is a schematic view of the chassis device 1 provided by the embodiment of the present application, FIG. 2 is a schematic view of the cooperation of the chassis device 1 and the cleaning cloth assembly 2 provided by the embodiment of the present application, and FIG. 3 is an exploded schematic view of the cooperation of the chassis device 1 and the cleaning cloth assembly 2 provided by the embodiment of the present application. Before describing the chassis device 1 provided by the embodiment, for the convenience of description, the following direction definitions are made: the chassis device 1 can be calibrated by the following three mutually perpendicular axes: the horizontal axis X, the front-rear axis Y and the vertical axis Z. Among them, the vertical axis Z is the direction of extending vertically upward along the bottom surface of the chassis device 1.

[0051] As shown in FIGS. 1-3, the chassis device 1 provided by the embodiment includes a chassis assembly 11, a scraping and cleaning assembly 12 and a threaded structure 13.

[0052] The chassis device 1 is placed in the cleaning base station, the cleaning base station is used in cooperation with the cleaning equipment (such as a cleaning robot), the cleaning base station is used for accommodating the cleaning equipment in an idle state, and the cleaning equipment is used for cleaning and washing the cleaning cloth. When the cleaning equipment is accommodated in the cleaning base station, the cleaning equipment is supported on the chassis device 1.

[0053] Please refer to FIG. 1, the chassis device 1 provided by the embodiment includes the chassis assembly 11 and the scraping and cleaning assembly 12, the scraping and cleaning assembly 12 is arranged on the chassis assembly 11, the chassis assembly 11 is used for supporting the scraping and cleaning assembly 12, the scraping and cleaning assembly 12 is used for cleaning the cleaning cloth assembly 2 of the cleaning equipment, and when the cleaning equipment is accommodated in the cleaning base station, the cleaning cloth assembly 2 of the cleaning equipment is located above the scraping and cleaning assembly 12.

[0054] In the prior art, the cleaning scheme for cleaning the cleaning base station is only one-way cleaning of the cleaning cloth. The cleaning device includes a cleaning cloth driving assembly 3 connected to the cleaning cloth assembly 2. When the cleaning cloth driving assembly 3 is working, it can drive the cleaning cloth assembly 2 to rotate. When the cleaning device moves to the cleaning base station, the cleaning cloth driving assembly 3 is started, which can drive the cleaning cloth assembly 2 to rotate in the forward direction and move downward. After moving a certain distance, the cleaning cloth driving assembly 3 can only drive the cleaning cloth assembly 2 to rotate in the forward direction and no longer move downward. At this time, the cleaning cloth assembly 2 is in contact with the scraping and cleaning assembly 12 on the bottom plate device 1. Continuing to control the cleaning cloth driving assembly 3 to drive the cleaning cloth assembly 2 to rotate in the forward direction, the position of the scraping and cleaning assembly 12 does not change, and the cleaning cloth assembly 2 rotates relative to the scraping and cleaning assembly 12, so that the scraping and cleaning assembly 12 can clean the cleaning cloth assembly 2. When the cleaning cloth driving assembly 3 is controlled to drive the cleaning cloth assembly 2 to rotate in the reverse direction, the cleaning cloth assembly 2 will rise to a certain height and reach the high position. At this time, the cleaning cloth driving assembly 3 can only drive the cleaning cloth assembly 2 to rotate in the reverse direction and no longer move upward. Due to the upward rotation of the cleaning cloth assembly 2 in the reverse direction, the cleaning cloth assembly 2 is separated from the scraping and cleaning assembly 12, that is, the reverse rotation of the cleaning cloth assembly 2 cannot clean the cleaning cloth assembly 2. Therefore, the cleaning of the cleaning cloth assembly 2 in the cleaning base station is only one-way cleaning, which affects the cleaning effect of the cleaning cloth. Especially for long pile type cleaning cloth assembly 2, one-way cleaning of the cleaning cloth assembly 2 will cause a large amount of dust to accumulate on the back of the cleaning cloth, resulting in poor cleaning effect of the cleaning cloth.

[0055] Based on the above problems, the embodiment adds a threaded structure 13 between the bottom plate assembly 11 and the scraping and cleaning assembly 12, and the bottom plate assembly 11 and the scraping and cleaning assembly 12 are connected through the threaded structure 13.

[0056] The bottom plate assembly 11 and the scraping and cleaning assembly 12 are connected through the threaded structure 13, that is, the bottom plate assembly 11 and the scraping and cleaning assembly 12 can be connected by threads. The bottom plate assembly 11 is stationary, and when the scraping and cleaning assembly 12 rotates, the scraping and cleaning assembly 12 can move relative to the bottom plate assembly 11 in the height direction. The height direction is the distribution direction of the scraping and cleaning assembly 11 and the bottom plate assembly 12. Please refer to FIG. 3, the scraping and cleaning assembly 11 and the bottom plate assembly 12 are distributed along the Z-axis direction, and the Z-axis direction is the height direction. In combination with the cleaning device, when the threaded connection 13 is provided between the bottom plate assembly 11 and the scraping and cleaning assembly 12, the scraping and cleaning assembly 12 moves as follows:

[0057] When the cleaning device is located in the cleaning base station provided with the chassis device 1 of the embodiment, if the cloth assembly 2 of the cleaning device is in contact with the scraping assembly 12 and there is a certain friction force between the two, when the cloth assembly 2 rotates, under the action of the friction force between the cloth assembly 2 and the scraping assembly 12, the cloth assembly 2 will drive the scraping assembly 12 to rotate together, for example, when the cloth assembly 2 rotates upward in the reverse direction, the scraping assembly 12 also rotates upward together with the cloth assembly 2, preventing the separation of the scraping assembly 12 from the cloth assembly 2 when the cloth assembly 2 rises, and further providing a prerequisite for the scraping function of the cloth assembly 2 rotating in the reverse direction.

[0058] For the friction force between the scraping assembly 12 and the cloth assembly 2, referring to FIG. 3, generally, the cloth assembly 2 includes a cloth disc 21 and a cloth 22, the cloth 22 is fixed on the cloth disc 21, the greater the pressing force between the scraping assembly 12 and the cloth 22, the greater the friction force between the two, when the friction force between the scraping assembly 12 and the cloth 22 is greater than a certain value, the cloth assembly 2 can drive the scraping assembly 12 to rotate when rotating.

[0059] For the cloth 22 with a certain thickness in the height direction, such as the cloth 22 with long fluff, the following situation may exist: when the scraping assembly 12 is in contact with the cloth 22 on the cloth assembly 2 and the distance between the scraping assembly 12 and the cloth disc 21 is d, at this time, the friction force between the scraping assembly 12 and the cloth 22 is large enough to enable the cloth assembly 2 to drive the scraping assembly 12 to rotate when rotating; if the scraping assembly 12 continues to press the cloth assembly 2, i.e., further reduces the distance between the scraping assembly 12 and the cloth disc 21, the friction force between the scraping assembly 12 and the cloth 22 further increases, and the cloth assembly 2 is more likely to drive the scraping assembly 12 to rotate when rotating. Therefore, for the cloth 22 with a certain thickness in the height direction, when the distance between the scraping assembly 12 and the cloth disc 21 is within a certain range, the cloth assembly 2 can drive the scraping assembly 12 to rotate when rotating.

[0060] Since the scraping assembly 12 cleans the cloth assembly 2, it is expected that the cloth driving assembly 3 drives the cloth assembly 2 to rotate while the scraping assembly 12 does not rotate, therefore, when the cloth assembly 2 is moved to the stop position under the driving of the cloth driving assembly 3, it is necessary to limit the rotation of the scraping assembly 12 relative to the chassis assembly 11, so that the cloth assembly 2 rotates while the scraping assembly 12 does not move when the cloth assembly 2 drives the scraping assembly 12 to the high position or the low position of the cloth assembly 2, thereby achieving the mode of bidirectional cleaning of the cloth assembly 2.

[0061] In the embodiment, a limiting structure is formed between the chassis assembly 11 and the scraping assembly 12, which limits the movement range of the scraping assembly 12 on the chassis assembly 11 in the height direction of the chassis assembly 11. Here, the height direction of the chassis assembly 11 is the direction of the Z axis shown in FIG. 3, i.e., the direction of the distribution of the chassis assembly 11 and the scraping assembly 12. The limiting structure limits the movement range of the scraping assembly 12 on the chassis assembly 11, i.e., the scraping assembly 12 includes two stop positions when moving, which are respectively a first position and a second position. When the scraping assembly 12 is reversely rotated, the scraping assembly 12 moves in the height direction to the direction of extending out of the chassis assembly 11, i.e., the scraping assembly 12 rises in height, and when rising to the second position, the scraping assembly 12 will no longer be reversely rotated. When the scraping assembly 12 is forwardly rotated, the scraping assembly 12 moves in the height direction to the direction of extending into the chassis assembly 11, i.e., the scraping assembly 12 falls in height, and when falling to the first position, the scraping assembly 12 will no longer be forwardly rotated. The distance between the first position and the second position in the height direction is the movement range of the scraping assembly 12 on the chassis assembly 11.

[0062] In the embodiment, the limiting structure limits the upward movement of the scraping assembly 12 to stop at the second position when reversely rotated, and limits the downward movement of the scraping assembly 12 to stop at the first position when forwardly rotated.

[0063] In the embodiment, the movement range of the scraping assembly 12 corresponds to the movement range of the cleaning cloth assembly 2 in the height direction in the cleaning device. That is, when the cleaning cloth assembly 2 in the cleaning device is bidirectionally rotated and moves between the low position and the high position in the height direction, the cleaning cloth assembly 2 can drive the scraping assembly 12 to move between the first position and the second position. Specifically, when the cleaning cloth assembly 2 is reversely rotated to the high position under the driving of the cleaning cloth driving assembly 3, the cleaning cloth assembly 2 can drive the scraping assembly 12 to move to the second position. When the cleaning cloth assembly 2 is forwardly rotated to the low position under the driving of the cleaning cloth driving assembly 3, the cleaning cloth assembly 2 can drive the scraping assembly 12 to move to the first position.

[0064] When the scraping assembly 12 is reversely rotated to stop at the second position, the cleaning cloth assembly 2 can be continuously reversely rotated under the driving of the cleaning cloth driving assembly 3. When the scraping assembly 12 is forwardly rotated to stop at the first position, the cleaning cloth assembly 2 can be continuously forwardly rotated under the driving of the cleaning cloth driving assembly 3, thereby realizing that the cleaning cloth assembly 2 can be rotated relative to the scraping assembly 12 to perform scraping when at the high position and the low position.

[0065] The cleaning process of the cleaning device is as follows: when the cleaning device returns to the cleaning base station, if the scraping and washing assembly 12 is located at the second position, the cleaning of the cleaning cloth assembly 2 is performed in the following manner: first, the cleaning cloth assembly 2 is reversely rotated, and the scraping and washing assembly 12 is not moved, so that the scraping and washing assembly 12 cleans the cleaning cloth assembly 2; then, the cleaning cloth assembly 2 is forwardly rotated, and the scraping and washing assembly 12 is synchronously forwardly rotated with the cleaning cloth assembly 2 under the friction force between the cleaning cloth assembly 2 and the scraping and washing assembly 12, that is, the cleaning cloth assembly 2 drives the scraping and washing assembly 12 to move downward, until the cleaning cloth assembly 2 is lowered to the low position and the scraping and washing assembly 12 is located at the first position, the cleaning cloth assembly 2 is continuously forwardly rotated, and the scraping and washing assembly 12 is not moved, so that the scraping and washing assembly 12 cleans the cleaning cloth assembly 2. The scraping and washing assembly 12 is pressed against the scraping and washing assembly 12, and the sundries on the cleaning cloth assembly 2 are timely removed during the rotation of the cleaning cloth assembly 2, so that the cleaning cloth assembly 2 is cleaned. In addition, the cleaning cloth assembly 2 can be repeatedly forwardly and reversely rotated, so that the cleaning cloth assembly 2 is bidirectionally cleaned for multiple times.

[0066] When the cleaning cloth assembly 2 of the cleaning device is cleaned for the first time, the scraping and washing assembly 12 can be located at the second position as described above, or the scraping and washing assembly 12 can also be located at the first position, and of course, the scraping and washing assembly 12 can also be located at a position between the first position and the second position. For example, when the cleaning cloth assembly 2 of the cleaning device is cleaned for the first time, the scraping and washing assembly 12 is located at the first position, and when the cleaning device returns to the cleaning base station, the cleaning cloth assembly 2 is first forwardly rotated to the low position by the cleaning cloth driving assembly 3, the cleaning cloth assembly 2 is cleaned when the cleaning cloth assembly 2 is located at the low position and the scraping and washing assembly 12 is located at the first position, and then the cleaning cloth assembly 2 is reversely rotated by the cleaning cloth driving assembly 3, and the cleaning cloth assembly 12 is cleaned when the cleaning cloth assembly 2 is located at the high position and the scraping and washing assembly 12 is located at the second position.

[0067] When the cleaning device leaves the base station, the cleaning cloth driving assembly 3 drives the cleaning cloth assembly 2 to the high position, and at this time, the cleaning cloth assembly 2 is in contact with the scraping and washing assembly 12 at the second position. Since the scraping and washing assembly 12 is located at the second position, it has a certain influence on the cleaning device leaving the cleaning base station, but the cleaning device can still overcome the resistance between the cleaning cloth assembly 2 and the scraping and washing assembly 12 and leave the cleaning base station under the driving of the driving device. When the cleaning device returns to the cleaning base station, since the scraping and washing assembly 12 is located at the second position, the scraping and washing assembly 12 has a certain influence on the storage of the cleaning device in the cleaning base station, but the cleaning device can still overcome the resistance between the cleaning cloth assembly 2 and the scraping and washing assembly 12 and return to the cleaning base station under the driving of the driving device.

[0068] As described above, when the distance between the scraping assembly 12 and the wiping plate 21 of the wiping assembly 2 is within a certain range, the wiping assembly 2 can rotate the scraping assembly 12 when the wiping assembly 2 rotates. Therefore, when the wiping assembly 2 has a certain thickness in the height direction, for the first position and the second position of the scraping assembly 12, and the low position and the high position of the wiping assembly 2, the following three scenarios exist:

[0069] Scenario one: when the wiping assembly 2 is in the low position and the scraping assembly 12 is in the first position, the wiping assembly 2 is reversely rotated to the high position, at this time, the scraping assembly 12 is also rotated to the second position.

[0070] Scenario two: when the wiping assembly 2 is in the low position and the scraping assembly 12 is in the first position, the wiping assembly 2 is reversely rotated to the high position, at this time, the scraping assembly 12 has not yet moved to the second position, and the wiping assembly 2 is reversely rotated again to move the scraping assembly 12 to the second position, that is, when the wiping assembly 2 is in the high position, the scraping assembly 12 continues to be reversely rotated to press the wiping assembly 22 on the wiping assembly 2 until it moves to the second position; the wiping assembly 2 is forwardly rotated to move the scraping assembly 12 forwardly, and when the wiping assembly 2 rotates to the low position, at this time, the scraping assembly 12 has not yet moved to the first position, and the wiping assembly 2 is forwardly rotated again to move the scraping assembly 12 to the first position, that is, when the wiping assembly 2 is in the low position, the scraping assembly 12 continues to be forwardly rotated to reduce the pressing of the wiping assembly 22 on the wiping assembly 2 until it moves to the first position.

[0071] Scenario three: when the wiping assembly 2 is in the low position and the scraping assembly 12 is in the first position, the wiping assembly 2 is reversely rotated, and when the wiping assembly 2 has not yet reached the high position, at this time, the scraping assembly 12 has moved to the second position, and the wiping assembly 2 is reversely rotated again to reach the high position, that is, when the scraping assembly 12 reaches the second position, the wiping assembly 2 is reversely rotated to reduce the pressing of the scraping assembly 12 on the wiping assembly 2 until the wiping assembly 2 rotates to the high position; then the wiping assembly 2 is forwardly rotated to move the scraping assembly 12 forwardly, and when the wiping assembly 2 has not yet reached the low position, at this time, the scraping assembly 12 has moved to the first position, and the wiping assembly 2 is forwardly rotated again to reach the low position, that is, when the scraping assembly 12 reaches the first position, the wiping assembly 2 is forwardly rotated to increase the pressing of the scraping assembly 12 on the wiping assembly 2 until the wiping assembly 2 rotates to the low position.

[0072] The above three scenarios are mainly caused by the size relationship between the number of rotations of the scraping and washing assembly 12 from the first position to the second position and the number of rotations of the wiping assembly 2 from the low position to the high position. In scenario one, the number of rotations of the scraping and washing assembly 12 from the first position to the second position is the same as the number of rotations of the wiping assembly 2 from the low position to the high position; in scenario two, the number of rotations of the scraping and washing assembly 12 from the first position to the second position is greater than the number of rotations of the wiping assembly 2 from the low position to the high position; and in scenario three, the number of rotations of the scraping and washing assembly 12 from the first position to the second position is less than the number of rotations of the wiping assembly 2 from the low position to the high position.

[0073] Preferably, the number of rotations of the scraping and washing assembly 12 from the first position to the second position is the same as the number of rotations of the wiping assembly 2 from the low position to the high position, but scenarios two and three can also occur due to processing errors and the like.

[0074] In addition, in the present embodiment, it is preferable that the height of the scraping and washing assembly 12 after rotating one circle is not less than the height of the wiping assembly 2 after rotating one circle. When the wiping assembly 2 is ascending in the reverse direction, the wiping assembly 2 drives the scraping and washing assembly 12 to rotate in the reverse direction. If the height of the scraping and washing assembly 12 after rotating one circle is greater than the height of the wiping assembly 2 after rotating one circle, the scraping and washing assembly 12 increasingly presses the wiping assembly 2, so that the friction between the two gradually increases, which is conducive to the wiping assembly 2 driving the scraping and washing assembly 12 to ascend. In addition, since the scraping and washing assembly 12 increasingly presses the wiping assembly 2 when the wiping assembly 2 is rotating in the reverse direction, when the scraping and washing assembly 12 is located at the second position, the wiping assembly 2 will better remove the dirt of the wiping assembly 2 during the reverse rotation, achieving a better cleaning effect.

[0075] In summary, the chassis device 1 provided in the embodiment, through the threaded structure 13 between the chassis assembly 11 and the scraping assembly 12, and through the limiting structure between the chassis assembly 11 and the scraping assembly 12, the upward movement of the scraping assembly 12 is limited to stop at the second position, and the downward movement is limited to stop at the first position, so that the scraping assembly 12 is stopped at the second position in reverse rotation and is stopped at the first position in forward rotation; in addition, when the cloth assembly 2 is rotated in reverse to the high position, the scraping assembly 12 can be driven to move to the second position, and when the cloth assembly 2 is rotated forward to the low position, the scraping assembly 12 can be driven to move to the first position, that is, the scraping assembly 12 can always be in contact with the cloth assembly 2 during the movement of the cloth assembly 2 in the height direction, so that the cloth assembly 2 can be rotated relative to the scraping assembly 12 to perform scraping when the cloth assembly 2 is in the high position and the low position, that is, bidirectional cleaning of the cloth assembly 2 is realized, the cleaning efficiency and cleaning effect of the cloth are improved, so that the influence of poor cleaning degree of the cloth on the cleaning effect of the cleaning equipment on the surface to be cleaned such as the ground can be effectively avoided, and the user experience is improved; in addition, the movement of the scraping assembly 12 in the height direction is passively driven when the cloth assembly 2 is rotated, that is, no additional driving device needs to be added for the movement of the scraping assembly 12 in the height direction, and the cost is low.

[0076] In the embodiment, when the scraping assembly 12 scrapes the rotating cloth assembly 2, water can be injected into the cloth assembly 2 to facilitate the scraping of the cloth assembly 2. The following two ways can be used to inject water into the cloth assembly 2: one is to inject water into the cloth assembly 2 through the water supply device of the cleaning equipment; the other is to spray water into the cloth assembly 2 through the water spraying assembly on the chassis device 1.

[0077] Regarding the injection of water into the cloth assembly 2 through the water supply device of the cleaning equipment, please refer to FIG. 3, which shows that the cloth disc 21 of the cloth assembly 2 is provided with disc holes 211. The water supply device is arranged in the cleaning equipment, and when the water supply device works, the clean water in the cleaning equipment can flow to the cloth 22 through the disc holes 211 to wet the cloth 22. For example, when the cloth assembly 2 is located at the low position and the scraping assembly 12 is located at the first position, the water supply device can be started to wet the cloth 22, so that the cloth assembly 2 can be cleaned in forward rotation; when the cloth assembly 2 is located at the high position and the scraping assembly 12 is located at the second position, the water supply device can be started to wet the cloth 22, so that the cloth assembly 2 can be cleaned in reverse rotation. Regarding the disc holes 211, in the example of FIG. 3, the disc holes 211 are multiple and uniformly distributed along the circumferential direction of the cloth disc 21.

[0078] With respect to spraying water to the wiping assembly 2 through the water spraying assembly on the chassis device 1, specifically, the water spraying assembly can be provided on the chassis device 1, the water spraying assembly comprising a spray head, the spray head being located directly below the wiping assembly 2 when the cleaning device is stored in the cleaning base station, the water spraying assembly being activated to wet the wiping cloth 22 when the wiping assembly 2 is in the low position and the scraping assembly 12 is in the first position, so as to realize cleaning when the wiping assembly 2 rotates in the forward direction; the water spraying assembly being activated to wet the wiping cloth 22 when the wiping assembly 2 is in the high position and the scraping assembly 12 is in the second position, so as to realize cleaning when the wiping assembly 2 rotates in the reverse direction.

[0079] With respect to the water spraying assembly, a water pump is further included, the water pump being connected to the water tank of the cleaning base station through a pipeline, and the spray head being connected to the water pump through a pipeline.

[0080] In a specific example, the position of the spray head on the chassis device 1 is fixed, i.e., the spray head is fixed on the chassis device 1. In another specific example, the height of the spray head is adjustable, for example, when the wiping assembly 2 rotates in the reverse direction to drive the scraping assembly 12 to move upward, the spray head is also raised at this time, so that when the wiping assembly 2 is in the high position and the scraping assembly 12 is in the second position, the spray head is still close to the wiping assembly 2. For the height-adjustable spray head, the spray head can be connected to a linear driving structure, which can be a pneumatic cylinder or a hydraulic cylinder, to drive the spray head to move in the height direction.

[0081] Please refer to FIGS. 4-6, FIG. 4 is an exploded schematic view of the chassis device 1 provided in the embodiments of the present application, FIG. 5 is a top view of the chassis device 1 provided in the embodiments of the present application, and FIG. 6 is a sectional view along A-A in FIG. 5.

[0082] In an embodiment, please refer to FIG. 4, the scraping assembly 12 comprises a scraping column 121, and the chassis assembly 11 comprises a base column 113, please refer to FIG. 6, the scraping column 121 is connected to the base column 113 through a threaded structure 13.

[0083] In the embodiments, the scraping column 121 is threadedly connected to the base column 113, so as to realize the threaded connection between the scraping assembly 12 and the chassis assembly 11, which is simple in structure and simplifies the structure of the chassis device 1.

[0084] With respect to the cooperation between the scraping column 121 and the base column 113, in one example, the scraping column 121 is inserted into the base column 113, and in another example, the base column 113 is inserted into the scraping column 121.

[0085] When the base column 113 is inserted into the scraping column 121, the outer circumferential side of the base column 113 is smooth curved surface, for example; or, referring to FIG. 4, the surface of the base column 113 is non-smooth curved surface, specifically, referring to FIG. 4, the base protrusions 1133 are formed on the base column 113 and distributed on the base column 113 in the circumferential direction. In this embodiment, the outer circumferential side of the base column 113 is not limited as long as the scraping column 121 can rotate relative to the base column 113.

[0086] Please refer to FIG. 7-FIG. 8; FIG. 7 is an exploded schematic view of the bottom disc assembly 11 provided in the embodiment of the present application; FIG. 8 is a schematic view of the scraping assembly 12 provided in the embodiment of the present application.

[0087] Regarding the bottom disc assembly 11, in one example, referring to FIG. 7, the bottom disc assembly 11 includes a bottom disc body 111 and a cleaning disc 112, the bottom disc body 111 is provided with a base column 113, the cleaning disc 112 is provided with a avoiding hole 114, and the cleaning disc 112 is arranged on the bottom disc body 111 and the base column 113 passes through the avoiding hole 114.

[0088] The bottom disc body 111 is supported on the main body of the cleaning base station (the main body is the structure of the cleaning base station except the base device), and the cleaning disc 112 is supported on the bottom disc body 111. The cleaning disc 112 is formed with a cleaning groove, which can be used to contain sewage to facilitate the cleaning of the wiping cloth assembly 2 by the scraping assembly 12. Of course, the cleaning disc 112 is also provided with a sewage outlet, and the specific shape of the bottom disc body 111 and the cleaning disc 112 is not limited in this embodiment.

[0089] Regarding the bottom disc assembly 11, in another example, the bottom disc assembly 11 includes a bottom disc body 111 and a cleaning disc 112, and the cleaning disc 112 is arranged on the bottom disc body 111 and provided with a base column 113.

[0090] Regarding the scraping assembly 12, in one example, referring to FIG. 8, the scraping assembly 12 further includes a scraping structure 123 and a plurality of supports 122, the plurality of supports 122 are distributed on the end of the scraping column 121 away from the bottom disc assembly 11 in the circumferential direction of the scraping column 121, and the scraping structure 123 is distributed on the side of each support 122 away from the bottom disc assembly 11.

[0091] In the embodiment, the plurality of supports 122 refers to two or more supports 122, and preferably the scraping and cleaning assembly 12 comprises a plurality of supports 122, but when the number of supports 122 is one, the wiping cloth assembly 2 can also be cleaned, but by arranging a plurality of supports 122, a better cleaning effect of the wiping cloth assembly 2 can be achieved. For example, the scraping and cleaning assembly 12 can comprise three or four supports 122, and the supports 122 can be arranged in a strip-shaped structure. Please refer to FIG. 8, which shows that the scraping and cleaning assembly 12 comprises three supports 122, and the three supports 122 are uniformly and spacedly arranged on the scraping column 121.

[0092] For example, the support 122 is integrally formed with the scraping column 121, or the support 122 is detachably fixed to the scraping column 121 by a connecting piece.

[0093] For the scraping structure 123, for example, the scraping structure 123 is a tooth or a protrusion arranged on the support 122, or the scraping structure 123 is a brush hair. When the scraping structure 123 is a tooth or a protrusion arranged on the support 122, the support 122 is preferably integrally formed with the scraping structure 123. Please refer to FIG. 8, which shows that the scraping structure 123 is a protrusion arranged on the support 122.

[0094] Please refer to FIG. 8, the end of the scraping column 121 away from the base plate assembly 11 is an upper end face 124, and the scraping structure 123 is higher than the upper end face 124 of the scraping column 121. When the scraping and cleaning assembly 12 abuts against the wiping cloth assembly 2, the scraping structure 123 contacts the wiping cloth assembly 2.

[0095] When the wiping cloth assembly 2 rotates relative to the scraping and cleaning assembly 12, the scraping structure 123 can effectively brush off the dirt adhered to the wiping cloth, reduce the adhesion amount of the dirt, and improve the cleaning efficiency of the wiping cloth.

[0096] In one example, two scraping and cleaning assemblies 12 are arranged on the base plate assembly 11, each scraping and cleaning assembly 12 is connected to the base plate assembly 11 through a threaded structure 13, and each scraping and cleaning assembly 12 forms a limiting structure with the base plate assembly 11. At this time, it is suitable for the case that the cleaning device is provided with two wiping cloth assemblies 2. In one example, one scraping and cleaning assembly 12 is arranged on the base plate assembly 11, and at this time, it is suitable for the case that the cleaning device is provided with one wiping cloth assembly 2. That is, the number of scraping and cleaning assemblies 12 on the base plate assembly 11 can be reasonably arranged according to the actual situation.

[0097] In the embodiment based on that the scraping and cleaning assembly 12 comprises the scraping column 121 and the base plate assembly 11 comprises the base column 113, the limiting structure comprises a first limiting structure and a second limiting structure, and the first limiting structure and the second limiting structure are respectively formed at the opposite ends of the threaded structure 13 in the height direction of the base plate assembly 11.

[0098] The first limiting structure is used to limit the wiping assembly 12 to the first position, that is, when the wiping assembly 12 is rotated forward to the first position, the wiping assembly 12 is limited to continue forward rotation by the first limiting structure; the second limiting structure is used to limit the wiping assembly 12 to the second position, that is, when the wiping assembly 12 is rotated reversely to the second position, the wiping assembly 12 is limited to continue reverse rotation by the second limiting structure.

[0099] For example, the first limiting structure and the second limiting structure can be provided with the same structure, or can be provided with different structures.

[0100] Referring to FIGS. 9-14, FIG. 9 is a schematic view of the chassis assembly 11 provided in the embodiment of the present application; FIG. 10 is a partial enlarged view of B in FIG. 9; FIG. 11 is a top view of the cleaning wiper assembly 12 provided in the embodiment of the present application; FIG. 12 is a sectional view of B-B in FIG. 11; FIG. 13 is a sectional view of the spiral groove 131 and the matching protrusion 132; and FIG. 14 is a sectional view of the cleaning wiper assembly 12 in the first position.

[0101] Regarding the threaded structure 13, in an embodiment, referring to FIGS. 10 and 12, the threaded structure 13 includes the spiral groove 131 and the matching protrusion 132, the matching protrusion 132 is located in the spiral groove 131, and the matching protrusion 132 is slidable in the spiral groove 131.

[0102] The matching protrusion 132 provided in the embodiment is not limited to a spiral shape, so that the threaded connection of the wiper column 121 and the base column 113 is achieved while the structure is simple and convenient to process.

[0103] For example, the spiral groove 131 is arranged on the wiper column 121, and the matching protrusion 132 is arranged on the base column 113; or the matching protrusion 132 is arranged on the wiper column 121, and the spiral groove 131 is arranged on the base column 113.

[0104] The spiral groove 131 is in a spiral shape, and regarding the spiral angle and the number of turns of the spiral groove 131, reasonable settings need to be made according to the matching condition of the cleaning cloth assembly 2.

[0105] In the example that the spiral groove 131 is arranged on the scraping column 121 and the matching protrusion 132 is arranged on the base column 113, in one specific example, one spiral groove 131 is arranged on the scraping column 121, and the matching protrusion 132 is more than one, the matching protrusion 132 is matched along the length direction of the spiral groove 131, when the matching protrusion 132 is one, the length of the matching protrusion 132 is preferably close to the length of one circle of the spiral groove 131 or the length of the matching protrusion 132 is greater than the length of one circle of the spiral groove 131, when the matching protrusion 132 is more than one, the matching protrusions 132 are distributed along the extension direction of the spiral groove 131. In another specific example, more than two spiral grooves 131 are arranged on the scraping column 121, and each spiral groove 131 is respectively matched with more than one matching protrusion 132, for example, two spiral grooves 131 are arranged on the scraping column 121, and two matching protrusions 132 are arranged on the base column 113 along the circumferential direction, and each matching protrusion 132 is respectively located in the corresponding spiral groove 131, so as to facilitate the stable connection of the scraping column 121 and the base column 113.

[0106] For example, the cross-sectional shape of the matching protrusion 132 is triangular, or the cross-sectional shape of the matching protrusion 132 is trapezoidal.

[0107] In one embodiment, please refer to FIG. 13, the scraping column 121 includes a connecting column 1212, and the spiral groove 131 is formed on the outer circumferential side of the connecting column 1212; the base column 113 is in a cylindrical structure, the matching protrusion 132 is arranged on the inner circumferential side of the base column 113, and the scraping column 121 is inserted into the base column 113 from the free end of the base column 113. Please refer to FIG. 13, in FIG. 13, the free end of the base column 113 is the upper end surface of the base column 113.

[0108] Please refer to FIG. 12 and FIG. 13, taking the rotation direction of the spiral groove 131 shown in FIG. 10 as an example, when the scraping column 121 rotates counterclockwise, the scraping column 121 moves upward along the height direction; when the scraping column 121 rotates clockwise, the scraping column 121 moves downward along the height direction.

[0109] Based on the embodiment that the scraping column 121 includes the connecting column 1212, in one embodiment, please refer to FIG. 13, the base column 113 is provided with a base hole 1131, the scraping column 121 is provided with a scraping hole 1211, the connecting column 1212 is arranged in the scraping column 121 and there is a gap between the connecting column 1212 and the inner wall of the scraping hole 1211, the base column 113 is inserted into the scraping hole 1211 and the connecting column 1212 is inserted into the base hole 1131.

[0110] The structure of the scraping and washing column 121 can protect the threaded structure 13 between the base column 113 and the scraping and washing column 121, prevent impurities from entering the threaded structure 13, and affect the movement of the scraping and washing column 121 relative to the base column 113 in the height direction.

[0111] For example, the outer circumferential side of the base column 113 is in contact with the hole wall surface of the scraping and washing hole 1211 (the inner side of the scraping and washing column 121) to prevent impurities from entering the threaded structure 13; or, there is a gap between the outer circumferential side of the base column 113 and the hole wall surface of the scraping and washing hole 1211.

[0112] Please refer to FIG. 12 and FIG. 13. In the example in FIG. 12 and FIG. 13, a step is formed on the circumferential outer side of the scraping and washing column 121; a step is also formed on the circumferential inner side of the scraping and washing column 121, which can be referred to as the scraping and washing step 1215. Please refer to FIG. 13. A step is formed on the circumferential outer side of the base column 113, which can be referred to as the base step 1134. When the scraping and washing column 121 is in the first position, the scraping and washing step 1215 on the circumferential inner side of the scraping and washing column 121 is in contact with the base step 1134 on the circumferential outer side of the base column 113; or, the scraping and washing step 1215 on the circumferential inner side of the scraping and washing column 121 is not in contact with the base step 1134 on the circumferential outer side of the base column 113.

[0113] In a specific embodiment, please refer to FIG. 13. A guide hole 1213 is arranged on the connecting column 1212, and a guide column 1132 is arranged inside the base column 113, and the guide column 1132 is inserted into the guide hole 1213.

[0114] By arranging the guide column 1132 inserted into the guide hole 1213, the scraping and washing column 121 is facilitated to be assembled on the base column 113, and the movement of the scraping and washing column 121 in the height direction is facilitated.

[0115] Regarding the first limiting structure, in an embodiment, please refer to FIG. 12 and FIG. 13. The end of the connecting column 1212 inserted into the base column 113 is the connecting column insertion end 1214. The end of the spiral groove 131 away from the connecting column insertion end 1214 forms the spiral abutting end surface 133. When the scraping and washing assembly 12 is in the first position, the spiral abutting end surface 133 is in abutment with the matching protrusion 132 to form the first limiting structure.

[0116] Please see Figure 12, the spiral groove 131 is shown away from the end of the scraping strip insertion end 1214, that is, the spiral abutting end face 133, when the connecting column 1212 is positively rotated and moves downward, if the end face of the matching protrusion 132 is in contact with the spiral abutting end face 133, as shown in Figure 13, if the connecting column 1212 is continuously positively rotated, the connecting column 1212 cannot continue to rotate, that is, the scraping assembly 12 cannot continue to rotate, realizing that the first limiting structure is formed by the matching of the matching protrusion 132 and the spiral abutting end face 133.

[0117] For example, please see Figure 13, the matching protrusion 132 is arranged on the base column 113 close to the upper end face of the base column 113, so as to reduce the length of the base column 113 in the height direction while ensuring the movement range of the scraping assembly 12 to match the movement range of the wiping assembly 2 in the cleaning equipment in the height direction.

[0118] The first limiting structure provided in the embodiment is simple in structure and can be matched by one end of the spiral groove 131 and the matching protrusion 132.

[0119] Regarding the first limiting structure, in another embodiment, when the scraping assembly 12 is positively rotated and moves downward, the base column 113 cannot continue to rotate downward by abutting the scraping column 121 and the base disc assembly 11 or by abutting the guiding column 1132 in the base column 113 and the scraping column 121, so as to stop the positive rotation of the scraping assembly 12 at the first position. Please see Figure 12 and Figure 13, the scraping assembly 12 can also be stopped at the first position by abutting the scraping step 1215 on the circumferential inner side of the scraping column 121 and the base step 1134 on the circumferential outer side of the base column 113.

[0120] Regarding the second limiting structure, in an embodiment, please see Figure 12 and Figure 13, the connecting column 1212 includes a first section 12121 and a second section 12122, the first section 12121 is connected with the second section 12122, the first section 12121 is provided with the spiral groove 131, the second section 12122 is away from the first section 12121 and is the scraping strip insertion end 1214, the diameter of the second section 12122 is smaller than that of the first section 12121, the spiral groove 131 is close to the end face of the first section 12121 close to the second section 12122, and the second section 12122 is provided with the limiting piece 14, when the scraping assembly 12 is located at the second position, the limiting piece 14 is in abutment with the matching protrusion 132 to form the second limiting structure.

[0121] In the embodiment, when the limiting member 14 is not arranged, the reverse rotation of the scraping and washing assembly 12 will make the matching protrusion 132 rotate out of the spiral groove 131; as shown in FIG. 14, by arranging the limiting member 14, when the scraping and washing assembly 12 is located at the second position, the limiting member 14 abuts against the matching protrusion 132, so that the reverse rotation of the scraping and washing assembly 12 is stopped at the second position.

[0122] As shown in FIG. 12, the first section 12121 is provided with the spiral groove 131, and the spiral groove 131 arranged on the first section 12121 will form the spiral rib 12123 on the first section 12121. The diameter of the second section 12122 is smaller than that of the first section 12121, for example, the diameter of the second section 12122 can be equal to that of the bottom surface of the spiral groove 131.

[0123] The second limiting structure provided in the embodiment is simple in structure and convenient to process.

[0124] Regarding the second limiting structure, in another embodiment, the same as the first limiting structure, the end of the spiral groove 131 close to the insertion end 1214 of the connecting column abuts against the matching protrusion 132 to form the second limiting structure.

[0125] In the embodiment in which the limiting member 14 is arranged on the connecting column 1212, in one embodiment, the limiting member 14 comprises a sleeve body 142 and an abutting protrusion 141, the abutting protrusion 141 is connected to the sleeve body 142, the sleeve body 142 is arranged on the second section 12122, and the abutting protrusion 141 is arranged at the end of the spiral groove 131 close to the insertion end 1214 of the connecting column.

[0126] As shown in FIG. 12, the abutting protrusion 141 is arranged at the end of the spiral groove 131 close to the insertion end 1214 of the scraping strip. In FIG. 14, the connecting column 1212 is continuously rotated reversely, because the abutting protrusion 141 abuts against the matching protrusion 132, and thus, the reverse rotation of the connecting column 1212 is limited. In the embodiment, the abutting protrusion 141 is arranged at the end of the spiral groove 131 close to the insertion end 1214 of the scraping strip to limit the position, which is simple in structure and convenient to process.

[0127] As shown in FIG. 13 and FIG. 14, FIG. 13 and FIG. 14 show the schematic diagrams of two position states of the scraping and washing assembly 12, in FIG. 13, the end surface of the matching protrusion 132 is in contact with the spiral abutting end surface 133, at this time, the scraping and washing assembly 12 is located at the first position; in FIG. 14, the abutting protrusion 141 on the limiting member 14 abuts against the matching protrusion 132, at this time, the scraping and washing assembly 12 is located at the second position.

[0128] When the helical groove 131 is one, the number of the matching protrusions 132 can be set to more than one, and the number of the abutting protrusions 141 on the sleeve 142 is consistent with the number of the helical grooves 131. For example, when the matching protrusions 132 are three, the three matching protrusions 132 are a first matching protrusion, a second matching protrusion, and a third matching protrusion, which are sequentially distributed along the extension direction of the helical groove 131, and the extension directions of the first matching protrusion, the second matching protrusion, and the third matching protrusion gradually downward from the first matching protrusion to the third matching protrusion. At this time, when the scrubbing assembly 12 is in the first position, one end of the first matching protrusion abuts against the helical abutting end face 133; when the scrubbing assembly 12 is in the second position, one end of the third matching protrusion abuts against the abutting protrusion 141 on the limiting piece 14.

[0129] When the helical groove 131 is more than one, more than one matching protrusion 132 is matched in each helical groove 131, and the number of the abutting protrusions 141 on the sleeve 142 is consistent with the number of the helical grooves 131. The abutting protrusions 141 are respectively arranged at one end of the corresponding helical groove 131 close to the insertion end 1214 of the connecting column. For example, when the helical groove 131 is three, the three helical grooves 131 are a first helical groove, a second helical groove, and a third helical groove, and the first helical groove, the second helical groove, and the third helical groove are respectively matched with one matching protrusion 132. The helical abutting end face 133 is formed on the first helical groove, the second helical groove, and the third helical groove. When the scrubbing assembly 12 is in the first position, the three matching protrusions 132 respectively contact the helical abutting end faces 133 of the first helical groove, the second helical groove, and the third helical groove; when the scrubbing assembly 12 is in the second position, the three matching protrusions 132 respectively contact the three abutting protrusions 141.

[0130] For example, the limiting piece 4 is tightly fitted or pasted on the second section 12122; or, the limiting piece 4 is tightly fitted or pasted on the first section 12121, for example, the limiting piece 4 is tightly fitted on the first section 12121 through the circumferentially distributed abutting protrusions 141 thereon.

[0131] The embodiment provides a cleaning base station, which comprises the chassis device 1 provided in any of the above embodiments.

[0132] The chassis device 1 is applied to a cleaning base station, which is used in cooperation with a cleaning device (such as a cleaning robot). The cleaning base station is used to accommodate the cleaning device in an idle state, and to charge the cleaning device and wash a cleaning cloth.

[0133] The embodiment provides a cleaning system, which comprises a cleaning device and a cleaning base station; the cleaning device comprises a cloth assembly 2 and a cloth driving assembly 3, the cloth driving assembly 3 is connected with the cloth assembly 2, the cloth driving assembly 3 is used for driving the cloth assembly 2 to rotate bidirectionally and move between a low position and a high position, and the cloth driving assembly 3 drives a scraping and washing assembly 12 to move between a first position and a second position through the cloth assembly 2, and the scraping and washing assembly 12 is stopped at the first position and the second position.

[0134] The reverse rotation of the cloth assembly 2 can drive the scraping and washing assembly 12 on the chassis device 1 to rotate and rise together, when the cloth assembly 2 reaches the high position, the cloth assembly 2 can reach the second position under the driving of the scraping and washing assembly 12, the scraping and washing assembly 12 is stopped from rising and reverse rotating at the second position, and the cloth assembly 2 continues to reverse rotate to realize reverse cleaning, the forward rotation of the cloth assembly 2 can drive the scraping and washing assembly 12 to rotate and fall together, when the cloth assembly 2 reaches the low position, the cloth assembly 2 can reach the first position under the driving of the scraping and washing assembly 12, the scraping and washing assembly 12 is stopped from falling and forward rotating at the first position, and the cloth assembly 2 continues to forward rotate to realize forward cleaning.

[0135] The cleaning device can be a scrubber, a sweeping robot, a sweeping and mopping robot or the like, and the embodiment of the application is not limited.

[0136] The cleaning system provided by the embodiment can realize bidirectional cleaning of the cloth assembly 2, improve the cleaning efficiency and cleaning effect of the cloth, thereby effectively avoiding the influence of poor cleaning degree of the cloth on the cleaning effect of the cleaning device on a surface to be cleaned such as a ground, and improving user experience.

[0137] Please refer to FIG. 15-FIG. 18, FIG. 15 is a sectional view of the base device 1, the cloth assembly 2 and the cloth driving assembly 3 provided by the embodiment of the application; FIG. 16 is a local enlarged view of C in FIG. 15; FIG. 17 is a schematic view of the cloth driving assembly 3 provided by the embodiment of the application; and FIG. 18 is an internal schematic view of the cloth driving assembly 3 provided by the embodiment of the application.

[0138] In one embodiment, please refer to FIG. 15-FIG. 18, the cloth driving assembly 3 comprises a shell 31, a driving motor 32, a first connecting piece 34, a second connecting piece 35 and a cloth limiting assembly, the driving motor 32 is in transmission connection with the first connecting piece 34, the first connecting piece 34 is in threaded connection with the second connecting piece 35, the second connecting piece 35 is further connected to the shell 31, the first connecting piece 34 is connected with the cloth assembly 2, and the cloth limiting assembly is used for limiting the movement range of the first connecting piece 34 relative to the second connecting piece 35 along the height direction, and the thread rise angle of the threaded structure 13 on the chassis device 1 is greater than the thread rise angle between the first connecting piece 34 and the second connecting piece 35.

[0139] Please refer to FIG. 15 and FIG. 16, the first connecting member 34 is fixedly connected with the wiping cloth assembly 2, thus the action of the first connecting member 34 is consistent with the wiping cloth assembly 2, as to the first connecting member 34 and the second connecting member 35, when the first connecting member 34 rotates forward to the low position, the first connecting member 34 rotates forward again, the first connecting member 34 rotates together with the second connecting member 35; when the first connecting member 34 rotates reversely to the high position, the first connecting member 34 rotates reversely again, the first connecting member 34 rotates together with the second connecting member 35; when the first connecting member 34 moves along the height direction reversely or forwardly, the second connecting member 35 is stationary, thus the first connecting member 34 moves along the height direction relative to the second connecting member 35 within a certain range.

[0140] In the embodiment, the thread angle of the thread structure 13 on the chassis device 1 is greater than the thread angle between the first connecting member 34 and the second connecting member 35. The thread angle is the included angle between the tangent of the helix and the plane perpendicular to the thread axis.

[0141] In one scenario, the number of thread turns of the thread structure 13 is consistent with the number of thread turns between the first connecting member 34 and the second connecting member 35, that is, when the wiping cloth assembly 2 moves to the low position, the scraping assembly 12 is located at the second position; when the wiping cloth assembly 2 moves to the high position, the scraping assembly 12 is located at the first position, thus the thread angle of the thread structure 13 on the chassis device 1 is greater than the thread angle between the first connecting member 34 and the second connecting member 35, and the cooperation process of the scraping assembly 12 and the wiping cloth assembly 2 is as follows: when the wiping cloth assembly 2 is at the low position and the scraping assembly 12 is at the second position, the wiping cloth driving assembly 3 is driven to reversely rotate the wiping cloth assembly 2, the wiping cloth assembly 2 reversely rotates together with the scraping assembly 12, because the thread angle of the thread structure 13 on the chassis device 1 is greater than the thread angle between the first connecting member 34 and the second connecting member 35, the scraping assembly 12 rises by a height greater than the height by which the wiping cloth assembly 2 rises after one rotation, thus as the wiping cloth assembly 2 reversely rotates together with the scraping assembly 12, the scraping assembly 12 increasingly presses the wiping cloth assembly 2, so that the friction between the two gradually increases, which is conducive to the wiping cloth assembly 2 driving the scraping assembly 12 to rise, until the wiping cloth assembly 2 rises to the high position, at this time, the scraping assembly 12 also rises to the first position.

[0142] In the embodiment, by setting the thread angle of the thread structure 13 on the chassis device 1 greater than the thread angle between the first connecting member 34 and the second connecting member 35, the wiping cloth assembly 2 is conducive to driving the scraping assembly 12 to rotate together.

[0143] In one specific embodiment, the thread angle of the thread structure 13 on the chassis device 1 is greater than 1.5 times the thread angle between the first connecting member 34 and the second connecting member 35.

[0144] By setting the thread angle between the first connecting piece 34 and the second connecting piece 35 of the thread structure 13 on the chassis device 1 to be greater than 1.5 times the thread angle, the wiping cloth assembly 2 can be stably driven to rotate together with the scraping and washing assembly 12.

[0145] Regarding the wiping cloth driving assembly 3, in one specific embodiment, please refer to FIGS. 16-18, the wiping cloth driving assembly 3 further comprises an intermediate transmission structure 33, the driving motor 32 is arranged on one side of the shell 31, the driving motor 32 is connected with the first connecting piece 34 through the intermediate transmission structure 33, the second connecting piece 35 is limited on the shell 31, please refer to FIG. 16, the first connecting piece 34 is threadedly connected with the second connecting piece 35, and the first connecting piece 34 is connected with the wiping cloth assembly 2.

[0146] In one specific example, please refer to FIG. 18, the intermediate transmission structure 33 comprises a worm 331, a turbine 332, a first gear 333, and a second gear 334, the worm 331 is connected with the driving motor 32, the turbine 332 is engaged with the worm 331, the first gear 333 is coaxially arranged with the turbine 332, and the second gear 334 is engaged with the first gear 333.

[0147] Please refer to FIG. 16, the second gear 334 is supported on the shell 31 through a bearing 36, one end of the first connecting piece 34 is inserted into the second gear 334, the axis of the first connecting piece 34 is collinear with the axis of the second gear 334, and one of the first connecting piece 34 and the second gear 334 is provided with a protrusion, and the other is provided with a groove, the protrusion is located in the groove, the groove extends along the axis direction of the first connecting piece 34, and the protrusion can slide along the extension direction of the groove, so that the second gear 334 drives the first connecting piece 34 to rotate, and the first connecting piece 34 can also move along the axis direction relative to the second gear 334. The first connecting piece 34 is provided with a mounting hole 341, the wiping cloth assembly 2 is inserted into the mounting hole 341 on the first connecting piece 34 from the side away from the second gear 334, the wiping cloth assembly 2 is fixedly connected with the first connecting piece 34, the first connecting piece 34 is formed with a thread groove 342, the inner side of the second connecting piece 35 in the form of a cylinder is provided with a thread protrusion (not shown in FIG. 16), the thread protrusion is matched with the thread groove 342, and the thread protrusion and the thread groove 342 are threadedly connected.

[0148] Please refer to FIG. 16, the circumferential outer side of the second connecting piece 35 is formed with an annular part 351, the annular part 351 is arranged between the first part 38 and the second part 39, and the lower part of the second part 39 is provided with a spring 310, the spring 310 is pressed between the inner side of the shell 31 and the second part 39.

[0149] As to the cloth limiting assembly, please refer to Fig. 16, the limiting part 37 is arranged on the first connecting piece 34, when the driving motor 32 works to drive the first connecting piece 34 to rotate, the second connecting piece 35 is not moved because it is limited by the first part 38 and the second part 39 on the shell 31, when the first connecting piece 34 moves downward to the position that the limiting part 37 abuts against the screw convex on the second connecting piece 35, the first connecting piece 34 drives the second connecting piece 35 to rotate, that is, the force of the first connecting piece 34 acting on the second connecting piece 35 overcomes the force of the first part 38 and the second part 39 acting on the second connecting piece 35, when the first connecting piece 34 and the second connecting piece 35 rotate together, the first connecting piece 34 no longer continues to move downward. When the driving motor 32 drives the first connecting piece 34 to rotate reversely, the second connecting piece 35 is not moved, the first connecting piece 34 reversely rotates and moves upward. When the first connecting piece 34 moves to the position as shown in Fig. 16, the screw convex abuts against the end of the screw groove 342, so that the first connecting piece 34 drives the second connecting piece 35 to reversely rotate together, the first connecting piece 34 no longer continues to move upward.

[0150] The above gives a specific embodiment of the cloth driving assembly 3, but the structure of the cloth driving assembly 3 is not limited to the above specific embodiment.

[0151] In the embodiment that the number of screw threads of the screw structure 13 is consistent with the number of screw threads between the first connecting piece 34 and the second connecting piece 35, when the first connecting piece 34 reversely rotates to the position that the screw convex on the second connecting piece 35 abuts against the end of the screw groove 342, at this time, the first connecting piece 34 no longer continues to move upward, the first connecting piece 34 drives the cloth assembly 2 to move to the high position, the cloth assembly 2 drives the scraping and washing assembly 12 to move to the second position; when the second connecting piece 34 rotates forwardly to the position that the limiting part 37 abuts against the screw convex on the second connecting piece 35, at this time, the first connecting piece 34 no longer continues to move downward, the first connecting piece 34 drives the cloth assembly 2 to move to the low position, the cloth assembly 2 drives the scraping and washing assembly 12 to move to the first position.

[0152] Compared with the prior art, the present application at least has the following beneficial effects:

[0153] The chassis device provided by the embodiment comprises a chassis assembly and a scraping and washing assembly. The scraping and washing assembly is connected to the chassis assembly through a threaded structure and a limiting structure. The threaded structure and the limiting structure limit the upward movement of the scraping and washing assembly to stop at the second position and the downward movement of the scraping and washing assembly to stop at the first position. The reverse rotation of the scraping and washing assembly stops at the second position, and the forward rotation of the scraping and washing assembly stops at the first position. In addition, when the wiping cloth assembly rotates reversely to the high position, the scraping and washing assembly is driven to move to the second position. When the wiping cloth assembly rotates forwardly to the low position, the scraping and washing assembly is driven to move to the first position. That is, the scraping and washing assembly is always in contact with the wiping cloth assembly during the movement of the wiping cloth assembly along the height direction. The wiping cloth assembly can rotate relative to the scraping and washing assembly to perform scraping and washing when the wiping cloth assembly is at the high position and the low position. The wiping cloth assembly can be bidirectionally cleaned, the cleaning efficiency and the cleaning effect of the wiping cloth are improved, and the user experience is improved. In addition, the movement of the scraping and washing assembly along the height direction is passively driven when the wiping cloth assembly rotates. No additional driving device is needed for the movement of the scraping and washing assembly along the height direction, and the cost is low.

[0154] The cleaning base station and the cleaning system provided by the embodiment of the application both comprise the above chassis device, and therefore at least comprise all the beneficial effects of the above chassis device, which will not be described herein.

[0155] The above only describes preferred embodiments of the application and is not used to limit the application. Any modification, equivalent replacement and improvement made within the spirit and principle of the application should be included in the protection scope of the application.

Claims

1. A base device comprising a base assembly (11), a wiping assembly (12) and a threaded structure (13), the base assembly (11) and the wiping assembly (12) being connected through the threaded structure (13); a limiting structure is formed between the base assembly (11) and the wiping assembly (12), and is used for limiting the moving range of the wiping assembly (12) along the height direction of the base assembly (11); when the cloth assembly (2) in the cleaning device rotates bidirectionally and moves between the low position and the high position, the wiping assembly (12) can be moved between the first position and the second position by the cloth assembly (2).

2. The chassis apparatus of claim 1, wherein, The base assembly (11) comprises a base body (111) and a cleaning disc (112), the cleaning disc (112) is arranged on the base body (11), and the base body (111) or the cleaning disc (112) is connected with the wiping assembly (12) through the threaded structure (13).

3. The chassis arrangement of claim 2, wherein, When the cloth assembly (2) in the cleaning device rotates bidirectionally and moves between the low position and the high position, the wiping assembly (12) is rotated and lifted by the cloth assembly (2) through the threaded structure (13).

4. The chassis arrangement of claim 2 or 3, wherein, The wiping assembly (12) comprises a wiping column (121), the base assembly (11) comprises a base column (113), the base column (113) is arranged on the base body (111) or the cleaning disc (112), and the wiping column (121) is connected with the base column (113) through the threaded structure (13). The limiting structure comprises a first limiting structure and a second limiting structure, and the first limiting structure and the second limiting structure are respectively formed at opposite ends of the threaded structure (13) along the height direction of the base assembly (11).

5. The chassis arrangement of claim 4, wherein, The threaded structure (13) comprises a spiral groove (131) and a matching protrusion (132), and the matching protrusion (132) can slide in the spiral groove (131).

6. The chassis arrangement of claim 5, wherein, The wiping column (121) comprises a connecting column (1212), the spiral groove (131) is formed on the outer circumferential side of the connecting column (1212); the base column (113) is in a cylindrical structure, the matching protrusion (132) is arranged on the inner circumferential side of the base column (113), and the wiping column (121) is inserted into the base column (113) from the free end of the base column (113).

7. The chassis arrangement of claim 6, wherein, One end of the connecting column (1212) inserted into the base column (113) is a connecting column insertion end (1214), one end of the spiral groove (131) away from the connecting column insertion end (1214) forms a spiral abutting end face (133), and when the wiping assembly (12) is located at the first position, the spiral abutting end face (133) abuts against the matching protrusion (132) to form the first limiting structure.

8. The chassis apparatus of claim 6, wherein, The connecting column (1212) comprises a first section (12121) and a second section (12122), the first section (12121) is connected with the second section (12122), the first section (12121) is provided with the spiral groove (131), one end of the second section away from the first section (12121) is the connecting column insertion end (1214), the diameter of the second section (12122) is smaller than the diameter of the first section (12121), one end of the spiral groove (131) is close to the second section (12122), the second section (12122) is provided with a limiting piece (14), when the scraping and washing assembly (12) is located at the second position, the limiting piece (14) abuts with the matching protrusion (132) to form the second limiting structure.

9. The chassis arrangement of claim 8, wherein, The limiting piece (14) comprises a sleeve body (142) and an abutting protrusion (141), the abutting protrusion (141) is connected on the sleeve body (142), the sleeve body (142) is sleeved on the second section (12122), and the abutting protrusion (141) is arranged at one end of the spiral groove (131) close to the connecting column insertion end (1214).

10. The chassis arrangement of claim 9, wherein, The spiral groove (131) is two or more, each spiral groove (131) is matched with one or more matching protrusions (132), the number of abutting protrusions (141) is consistent with the number of spiral grooves (131), and the abutting protrusions (141) are respectively arranged at one end of the corresponding spiral grooves (131) close to the connecting column insertion end (1214).

11. The chassis apparatus of claim 6, wherein, The base column body (113) is provided with a base hole (1131), the scraping column body (121) is provided with a scraping hole (1211), the connecting column (1212) is arranged in the scraping column body (121) and a gap exists between the connecting column (1212) and the inner wall of the scraping hole (1211), the base column body (113) is inserted into the scraping hole (1211), and the connecting column (1212) is inserted into the base hole (1131).

12. A cleaning base station comprising the base pan device of any one of claims 1-11.

13. A cleaning system comprising a cleaning device and the cleaning base station of claim 12; the cleaning device comprising a cloth assembly (2) and a cloth driving assembly (3), the cloth driving assembly (3) being connected with the cloth assembly (2), the cloth driving assembly (3) being used to drive the cloth assembly (2) to rotate bidirectionally and move between a low position and a high position, and drive the scraping and washing assembly (12) to move between a first position and a second position through the cloth assembly (2), the scraping and washing assembly (12) being rotationally stopped at the first position and the second position.

14. The cleaning system of claim 13, wherein, The cloth driving assembly (3) comprises a driving motor (32), a first connecting piece (34), a second connecting piece (35) and a cloth limiting assembly, the driving motor (32) is in transmission connection with the first connecting piece (34), the first connecting piece (34) is in screw connection with the second connecting piece (35), the first connecting piece (34) is fixedly connected with the cloth assembly (2), the cloth limiting assembly is used for limiting the movement range of the first connecting piece (34) relative to the second connecting piece (35) along the first side, and the thread angle of the thread structure (13) on the chassis device (1) is greater than the thread angle between the first connecting piece (34) and the second connecting piece (35).

15. The cleaning system of claim 14, wherein, The thread angle of the thread structure (13) is greater than 1.5 times the thread angle between the first connecting piece (34) and the second connecting piece (35).

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