Chassis device, cleaning base station and cleaning system

Abstract

The utility model provides a chassis device, a cleaning base station and a cleaning system, and relates to the technical field of smart home, the chassis device comprises a chassis assembly, a scraping assembly, a thread structure and a limiting structure; the chassis assembly and the scraping and washing assembly are connected through a thread structure; a limiting structure is formed between the chassis assembly and the scraping and washing assembly and used for limiting the moving range of the scraping and washing assembly in the height direction of the chassis assembly. When the cleaning cloth assembly in the cleaning equipment rotates bidirectionally and moves between the low position and the high position, the cleaning cloth assembly can drive the scraping and washing assembly to move between the first position and the second position. According to the chassis device, bidirectional cleaning of the cleaning cloth assembly can be achieved, the cleaning efficiency and the cleaning effect of the cleaning cloth are improved, and therefore the situation that the cleaning effect of cleaning equipment on the to-be-cleaned face such as the ground is affected due to the poor cleanliness of the cleaning cloth can be effectively avoided; in addition, the scraping and washing assembly moves in the height direction without an additional driving device, and the cost is low.

Description

Technical Field

[0001] This application belongs to the technical field of smart home, and particularly relates to a chassis device, a cleaning base station, and a cleaning system. Background Art

[0002] For the cleaning of the cleaning cloth on the cleaning robot, it is usually for the cleaning robot to return to the cleaning base station and complete the cleaning of the cleaning cloth in the cleaning base station. However, all the cleaning solutions used for cleaning the cleaning cloth in the cleaning base station can only clean the cleaning cloth unidirectionally. However, most of the cleaning cloths used by the cleaning robot are long fluff types. Only scraping the cleaning cloth unidirectionally will cause a large amount of dust to be hidden on the back of the fluff, and the cleaning effect of the cleaning cloth is poor. Summary of the Utility Model

[0003] The purpose of the embodiments of this application is to provide 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.

[0004] To achieve the above purpose, the technical solution adopted in this application is:

[0005] The first aspect of this application provides a chassis device, including a chassis component, a scraping component, and a threaded structure. The chassis component and the scraping component are connected by the threaded structure;

[0006] A limiting structure is formed between the chassis component and the scraping component, and the limiting structure is used to limit the moving range of the scraping component along the height direction of the chassis component;

[0007] When the cleaning cloth component in the cleaning device rotates bidirectionally and moves between the low position and the high position, the chassis component and the scraping component are connected by the threaded structure.

[0008] In a feasible implementation manner, the scraping component includes a scraping cylinder, and the chassis component includes a base cylinder. The scraping cylinder is connected to the base cylinder by the threaded structure;

[0009] The limiting structure includes 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 component.

[0010] In a feasible implementation manner, the threaded structure includes a spiral groove and a mating protrusion, and the mating protrusion can slide in the spiral groove.

[0011] In a feasible implementation manner, the scraping cylinder includes a connecting column, and the spiral groove is formed on the outer circumferential side of the connecting column; the base cylinder is in a cylindrical structure, and the mating protrusion is arranged on the inner circumferential side of the base cylinder. The scraping cylinder is inserted into the base cylinder from the free end of the base cylinder.

[0012] In a feasible implementation, one end of the connecting column inserted into the base column is the connecting column insertion end. One end of the spiral groove far from the connecting column insertion end forms a spiral abutting end face. When the scraping and washing assembly is in the first position, the spiral abutting end face abuts against the matching protrusion to form a first limiting structure.

[0013] In a feasible implementation, the connecting column includes a first section and a second section. The first section is connected to the second section. A spiral groove is provided on the first section. One end of the second section far 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. A limiting member is provided on the second section. When the scraping and washing assembly is in the second position, the limiting member abuts against the matching protrusion to form a second limiting structure.

[0014] In a feasible implementation, the limiting member includes a sleeve body and an abutting protrusion. The abutting protrusion is connected to the sleeve body. The sleeve body is sleeved on the second section. The abutting protrusion is provided at one end of the spiral groove close to the connecting column insertion end.

[0015] In a feasible implementation, there are two or more spiral grooves. One or more matching protrusions are fitted in each spiral groove. The number of abutting protrusions is the same as the number of spiral grooves. The abutting protrusions are respectively provided at one end of the corresponding spiral grooves close to the connecting column insertion end.

[0016] In a feasible implementation, a base hole is provided on the base column, a scraping hole is provided on the scraping column, a connecting column is provided in the scraping column and there is a gap between the connecting column and the scraping hole. The base column is inserted into the scraping hole and the connecting column is inserted into the base hole.

[0017] The second aspect of the present application provides a cleaning base station, including the chassis device provided by any of the above technical solutions.

[0018] The third aspect of the present application provides a cleaning system, including a cleaning device and the cleaning base station provided by the above technical solutions; the cleaning device includes a rag assembly and a rag driving assembly. The rag driving assembly is connected to the rag assembly. The rag driving assembly is used to drive the rag assembly to rotate bidirectionally and move between a low position and a high position, and drive the scraping and washing assembly to move between the first position and the second position through the rag assembly. The scraping and washing assembly is stopped from rotating at the first position and the second position.

[0019] In a feasible implementation manner, the rag driving assembly includes a driving motor, a first connecting member, a second connecting member, and a rag limiting assembly. The driving motor is in transmission connection with the first connecting member. The first connecting member is in threaded connection with the second connecting member. The first connecting member is fixedly connected to the rag assembly. The rag limiting assembly is used to limit the moving range of the first connecting member relative to the second connecting member along a first direction. The lead angle of the thread structure on the chassis device is greater than the lead angle between the first connecting member and the second connecting member.

[0020] In a feasible implementation manner, the lead angle of the thread structure is greater than 1.5 times the lead angle between the first connecting member and the second connecting member.

[0021] Compared with the prior art, the present application has at least the following beneficial effects:

[0022] In the chassis device provided in this embodiment, through the thread structure between the chassis assembly and the scraping and washing assembly, and through the limiting structure between the chassis assembly and the scraping and washing assembly, the upward movement of the scraping and washing assembly is limited to stop at the second position, and the downward movement is limited to stop at the first position, so that the scraping and washing assembly stops at the second position when rotating in the reverse direction and stops at the first position when rotating in the forward direction. Additionally, when the rag assembly rotates in the reverse direction to the high position, it can drive the scraping and washing assembly to move to the second position. When the rag assembly rotates in the forward direction to the low position, it can drive the scraping and washing assembly to move to the first position. That is, during the movement of the rag assembly in the height direction, the scraping and washing assembly can always be in contact with the rag assembly, so as to realize that the rag assembly can rotate relative to the scraping and washing assembly for scraping and washing at the high position and the low position, thereby realizing the two-way cleaning of the rag assembly, improving the cleaning efficiency and cleaning effect of the rag, effectively avoiding the influence of poor rag cleanliness on the cleaning effect of the cleaning device on the surface to be cleaned such as the ground, and thus improving the user experience. Additionally, the movement of the scraping and washing assembly in the height direction adopts passive driving when the rag assembly rotates, that is, no additional driving device needs to be added for the movement of the scraping and washing assembly in the height direction, and the cost is relatively low.

[0023] The cleaning base station and the cleaning system provided in the embodiments of the present application both include the above-mentioned chassis device, so they at least include all the beneficial effects of the above-mentioned chassis device, which will not be elaborated here. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 It is a schematic diagram of the chassis device provided in the embodiments of the present application;

[0026] Figure 2 Schematic diagram of the cooperation between the chassis device and the rag assembly provided by the embodiment of the present application;

[0027] Figure 3 Exploded schematic diagram of the cooperation between the chassis device and the rag assembly provided by the embodiment of the present application;

[0028] Figure 4 Exploded schematic diagram of the chassis device provided by the embodiment of the present application;

[0029] Figure 5 Top view schematic diagram of the chassis device provided by the embodiment of the present application;

[0030] Figure 6 is Figure 5 Cross-sectional schematic diagram in the A-A direction in;

[0031] Figure 7 Exploded schematic diagram of the chassis assembly provided by the embodiment of the present application;

[0032] Figure 8 Schematic diagram of the scraping and washing assembly provided by the embodiment of the present application;

[0033] Figure 9 Schematic diagram of the chassis assembly provided by the embodiment of the present application;

[0034] Figure 10 is Figure 9 Partial enlarged view at B in;

[0035] Figure 11 Top view schematic diagram of the scraping and washing assembly provided by the embodiment of the present application;

[0036] Figure 12 is Figure 11 Cross-sectional schematic diagram in the B-B direction in;

[0037] Figure 13 is Figure 6 Partial enlarged view at A in (the scraping and washing assembly is in the second position);

[0038] Figure 14 Cross-sectional schematic diagram of the scraping and washing assembly in the first position;

[0039] Figure 15 Cross-sectional schematic diagram of the chassis device, rag assembly and rag driving assembly provided by the embodiment of the present application;

[0040] Figure 16 is Figure 15 Partial enlarged view at C in;

[0041] Figure 17Schematic diagram of the rag driving component provided by the embodiment of the present application;

[0042] Figure 18 Internal structure schematic diagram of the rag driving component provided by the embodiment of the present application.

[0043] Among them, each reference numeral in the figure:

[0044] 1 - Chassis device; 2 - Rag component; 3 - Rag driving component;

[0045] 11 - Chassis component; 12 - Scrubbing component; 13 - Thread structure; 14 - Limiting part;

[0046] 111 - Chassis main body; 112 - Cleaning tray; 113 - Base column; 114 - Avoidance hole;

[0047] 1131 - Base hole; 1132 - Guide post; 1133 - Base rib; 1134 - Base step;

[0048] 121 - Scrubbing column; 122 - Bracket; 123 - Scrubbing structure; 124 - Upper end face;

[0049] 1211 - Scrubbing hole; 1212 - Connecting column; 1213 - Guide hole; 1214 - Scraper insertion end; 1215 - Scrubbing step;

[0050] 12121 - First section; 12122 - Second section; 12123 - Spiral rib;

[0051] 131 - Spiral groove; 132 - Fitting protrusion; 133 - Spiral abutting end face;

[0052] 141 - Abutting protrusion; 142 - Sleeve body;

[0053] 21 - Rag tray; 22 - Rag;

[0054] 211 - Tray hole;

[0055] 31 - Housing; 32 - Driving motor; 33 - Intermediate transmission structure; 34 - First connecting piece; 35 - Second connecting piece; 36 - Bearing; 37 - Limiting component; 38 - First component; 39 - Second component; 310 - Spring;

[0056] 331 - Worm; 332 - Worm gear; 333 - First gear; 334 - Second gear;

[0057] 341 - Mounting hole; 342 - Threaded groove;

[0058] 351 - Annular part. Detailed implementation manner

[0059] To make the objectives, technical solutions, and advantages of this application more clear, the following will further describe in detail the implementation manners of this application in conjunction with the accompanying drawings. The embodiments described by referring to the accompanying drawings are exemplary and are intended to explain this application, and should not be construed as limiting this application.

[0060] In the description of this application, it should be understood that the orientation or positional relationships indicated by the terms "length", "width", "thickness", "top", "bottom", "inner", "outer", "upper", "lower", "left", "right", etc. are based on the orientation or positional relationships shown in the accompanying drawings. These are only for the convenience of describing this application 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 limiting this application.

[0061] To facilitate a clear description of the technical solutions of this application, terms such as "first" and "second" are used to distinguish identical or similar items with basically the same functions and roles. Those skilled in the art can understand that terms such as "first" and "second" do not limit the quantity and execution order, and "first", "second", etc. do not necessarily mean different.

[0062] In this application, unless otherwise clearly specified and limited, terms such as "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and 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 this application can be understood according to specific circumstances.

[0063] In this application, "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this text generally represents an "or" relationship between the associated objects before and after.

[0064] It should be noted that in this application, words such as "in one embodiment", "exemplarily", and "for example" are used to give examples, illustrations, or explanations. Any embodiment or design solution described as "in one embodiment", "exemplarily", or "for example" in this application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Exactly, using words such as "in one embodiment", "exemplarily", and "for example" is intended to present relevant concepts in a specific manner.

[0065] Figure 1 Schematic diagram of the chassis device 1 provided for the embodiments of this applicationFigure 2 Schematic diagram of the cooperation between the chassis device 1 and the rag assembly 2 provided in the embodiment of the present application Figure 3 Exploded schematic diagram of the cooperation between the chassis device 1 and the rag assembly 2 provided in the embodiment of the present application. Before describing the chassis device 1 provided in this embodiment, for convenience of description, the following direction definitions are made: The chassis device 1 can be calibrated by the following three mutually perpendicular axes: the transverse axis X, the front-rear axis Y, and the vertical axis Z. Among them, the vertical axis Z is the direction extending vertically upward along the bottom surface of the chassis device 1.

[0066] As Figures 1 - 3 shown, the chassis device 1 provided in this embodiment includes a chassis assembly 11, a scraping and washing assembly 12, and a threaded structure 13.

[0067] The chassis device 1 is placed in a cleaning base station. The cleaning base station is used in cooperation with a cleaning device (such as a cleaning robot). The cleaning base station is used to store the cleaning device in an idle state and supply the cleaning device for charging and washing the rag. When the cleaning device is stored in the cleaning base station, the cleaning device is supported on the chassis device 1.

[0068] Please refer to Figure 1 , the chassis device 1 provided in this embodiment includes a chassis assembly 11 and a scraping and washing assembly 12. The scraping and washing assembly 12 is arranged on the chassis assembly 11. The chassis assembly 11 is used to support the scraping and washing assembly 12. The scraping and washing assembly 12 is used to clean the rag assembly 2 of the cleaning device. When the cleaning device is stored in the cleaning base station, the rag assembly 2 of the cleaning device is located above the scraping and washing assembly 12.

[0069] In the existing related technologies, the cleaning solutions for cleaning the wiping cloth in the cleaning base station can only achieve one-way wiping cloth cleaning: the cleaning device includes a wiping cloth driving component 3 connected to the wiping cloth component 2. When the wiping cloth driving component 3 works, it can drive the wiping cloth component 2 to rotate. When the cleaning device moves into the cleaning base station and the wiping cloth driving component 3 is started, the wiping cloth driving component 3 can drive the wiping cloth component 2 to rotate forward and drive the wiping cloth component 2 to move downward. After moving down a certain distance to reach the low position, when reaching the low position, the wiping cloth driving component 3 can only drive the wiping cloth component 2 to rotate forward and no longer drive the wiping cloth component 2 to move downward. At this time, the wiping cloth component 2 contacts the scraping component 12 on the chassis device 1. Continue to control the wiping cloth driving component 3 to drive the wiping cloth component 2 to rotate forward, and the position of the scraping component 12 remains unchanged. The wiping cloth component 2 rotates relative to the scraping component 12 so that the scraping component 12 can scrape the wiping cloth component 2. When controlling the wiping cloth driving component 3 to drive the wiping cloth component 2 to rotate backward, the wiping cloth component 2 will rise. After rising to a certain height, it reaches the high position. At the high position, the wiping cloth driving component 3 can only drive the wiping cloth component 2 to rotate backward and no longer drive the wiping cloth component 2 to move upward. Since the wiping cloth component 2 rises after rotating backward, the wiping cloth component 2 is separated from the scraping component 12, that is, the wiping cloth component 2 cannot be scraped when rotating backward. Therefore, the cleaning of the wiping cloth component 2 in the cleaning base station can only be carried out in one direction, and one-way cleaning affects the cleaning effect of the wiping cloth. Especially when the wiping cloth component 2 is mostly of long fluff type, only one-way scraping of the wiping cloth component 2 will cause a large amount of dust to be hidden on the back of the fluff of the wiping cloth, and the cleaning effect of the wiping cloth is poor.

[0070] Based on the above problems, in this embodiment, a threaded structure 13 is added between the chassis component 11 and the scraping component 12, and the chassis component 11 and the scraping component 12 are connected by the threaded structure 13.

[0071] The chassis component 11 and the scraping component 12 are connected by the threaded structure 13, that is, a threaded connection can be achieved between the chassis component 11 and the scraping component 12. When the chassis component 11 does not move and the scraping component 12 is rotated, the scraping component 12 can move relative to the chassis component 11 in the height direction. The height direction is the distribution direction of the scraping component 11 and the chassis component 12. Please refer to Figure 3 , the scraping component 11 and the chassis component 12 are distributed along the Z-axis direction, and the Z-axis direction is the height direction. In combination with the cooperation of the cleaning device, when a threaded connection 13 is provided between the chassis component 11 and the scraping component 12, the actions of the scraping component 12 are as follows:

[0072] When the cleaning device is located in the cleaning base station provided with the chassis device 1 of this embodiment, if the wiping cloth assembly 2 of the cleaning device is in contact with the scraping assembly 12 and there is a certain frictional force between the two, when the wiping cloth assembly 2 rotates, under the action of the frictional force between the wiping cloth assembly 2 and the scraping assembly 12, the wiping cloth assembly 2 will drive the scraping assembly 12 to rotate together. For example, when the wiping cloth assembly 2 rotates reversely and rises, the scraping assembly 12 also rotates and rises with the wiping cloth assembly 2, preventing the wiping cloth assembly 2 from separating from the scraping assembly 12 when the wiping cloth assembly 2 rises, and thus providing a prerequisite for the reverse rotation of the wiping cloth assembly 2 to still achieve scraping.

[0073] For the frictional force between the scraping assembly 12 and the wiping cloth assembly 2, refer to Figure 3 , usually the wiping cloth assembly 2 includes a wiping cloth disk 21 and a wiping cloth 22. The wiping cloth 22 is fixed on the wiping cloth disk 21. The greater the extrusion force between the scraping assembly 12 and the wiping cloth 22, the greater the frictional force between the two. When the frictional force between the scraping assembly 12 and the wiping cloth 22 is greater than a certain value, the wiping cloth assembly 2 can drive the scraping assembly 12 to rotate together when rotating.

[0074] For the wiping cloth 22 with a certain thickness in the height direction, such as a long plush wiping cloth 22, the following situation will occur: when the scraping assembly 12 is in contact with the wiping cloth 22 on the wiping cloth assembly 2 and the distance between the scraping assembly 12 and the wiping cloth disk 21 is d, at this time, the frictional force between the scraping assembly 12 and the wiping cloth 22 is large enough so that the wiping cloth assembly 2 can drive the scraping assembly 12 to rotate together when rotating; if the scraping assembly 12 continues to squeeze the wiping cloth assembly 2, that is, further reduces the distance between the scraping assembly 12 and the wiping cloth disk 21, the frictional force between the scraping assembly 12 and the wiping cloth 22 further increases, and it is easier for the wiping cloth assembly 2 to drive the scraping assembly 12 to rotate together when rotating. Therefore, for the wiping cloth 22 with a certain thickness in the height direction, when the distance between the scraping assembly 12 and the wiping cloth disk 21 is within a certain range, the wiping cloth assembly 2 can drive the scraping assembly 12 to rotate together when rotating.

[0075] Since when the scraping assembly 12 cleans the wiping cloth assembly 2, it is expected that the wiping cloth driving assembly 3 drives the wiping cloth assembly 2 to rotate while the scraping assembly 12 does not rotate. Therefore, when the wiping cloth assembly 2 moves to the stop position driven by the wiping cloth driving assembly 3, it is necessary to limit the rotation of the scraping assembly 12 relative to the chassis assembly 11. In this way, when the wiping cloth assembly 2 drives the scraping assembly 12 to the high position or the low position of the wiping cloth assembly 2, the wiping cloth assembly 2 can rotate while the scraping assembly 12 does not move to clean the wiping cloth assembly 2 bidirectionally.

[0076] In this embodiment, a limiting structure is formed between the chassis assembly 11 and the scrubbing assembly 12. The limiting structure limits the movement range of the scrubbing 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, as Figure 3 shown by the orientation of the Z-axis, that is, the orientation in the distribution direction of the chassis assembly 11 and the scrubbing assembly 12. The limiting structure limits the movement range of the scrubbing assembly 12 on the chassis assembly 11, that is, when the scrubbing assembly 12 moves, it includes two stopping positions, which are the first position and the second position respectively. When the scrubbing assembly 12 rotates reversely, the scrubbing assembly 12 moves in the direction of extending out of the chassis assembly 11 along the height direction, that is, the height of the scrubbing assembly 12 rises. When it rises to the second position, the scrubbing assembly 12 will no longer rotate reversely; when the scrubbing assembly 12 rotates forward, the scrubbing assembly 12 moves in the direction of extending into the chassis assembly 11 along the height direction, that is, the height of the scrubbing assembly 12 drops. When it drops to the first position, the scrubbing assembly 12 will no longer rotate forward. The distance between the first position and the second position along the height direction is the activity range of the scrubbing assembly 12 on the chassis assembly 11.

[0077] In this embodiment, the limiting structure restricts the upward movement of the scrubbing assembly 12 to the second position, that is, the reverse rotation stops at the second position, and the downward movement stops at the first position, that is, the forward rotation stops at the first position.

[0078] In this embodiment, the movement range of the scrubbing assembly 12 corresponds to the movement range of the rag assembly 2 in the cleaning device along the height direction. That is, when the rag assembly 2 in the cleaning device rotates bidirectionally and moves between the low position and the high position along the height direction, the rag assembly 2 can drive the scrubbing assembly 12 to move between the first position and the second position. Specifically, when the rag assembly 2 rotates reversely to the high position driven by the rag driving assembly 3, the rag assembly 2 can drive the scrubbing assembly 12 to move to the second position. When the rag assembly 2 rotates forward to the low position driven by the rag driving assembly 3, the rag assembly 2 can drive the scrubbing assembly 12 to move to the first position.

[0079] When the reverse rotation of the scrubbing assembly 12 stops at the second position, the rag assembly 2 can continue to rotate reversely driven by the rag driving assembly 3. When the forward rotation of the scrubbing assembly 12 stops at the first position, the rag assembly 2 can continue to rotate forward driven by the rag driving assembly 3, so as to realize that the rag assembly 2 can rotate relative to the scrubbing assembly 12 at the high position and the low position for scrubbing.

[0080] The specific cleaning process of the chassis device 1 provided in this embodiment for the wiping component 2 of the cleaning device is as follows: When the cleaning device returns to the cleaning base station, if the scraping component 12 is at the second position at this time, when cleaning the wiping component 2, the wiping component 2 can be rotated reversely first. Since the position of the scraping component 12 remains unchanged, the cleaning of the wiping component 2 by the scraping component 12 is realized; then the wiping component 2 is rotated forward. Under the action of the frictional force between the wiping component 2 and the scraping component 12, the scraping component 12 rotates forward synchronously with the wiping component 2, that is, the wiping component 2 drives the scraping component 12 to move downward until the wiping component 2 descends to the low position and the scraping component 12 is at the first position. Then, continue to rotate the wiping component 2 forward. The position of the scraping component 12 remains unchanged, and the cleaning of the wiping component 2 by the scraping component 12 is realized. The scraping component 12 squeezes the scraping component 12, and during the rotation of the wiping component 2, the sundries of the wiping component 2 are removed in time to clean the wiping component 2. In addition, the wiping component 2 can be rotated forward and backward multiple times to realize the two-way cleaning of the wiping component 2 multiple times.

[0081] When cleaning the wiping component 2 of the cleaning device for the first time, the scraping component 12 can be at the second position as described above, or the scraping component 12 can also be at the first position. Of course, at this time, the scraping component 12 can also be at a position between the first position and the second position. For example, when cleaning the wiping component 2 of the cleaning device for the first time, the scraping component 12 is at the first position. When the cleaning device returns to the cleaning base station, the wiping drive component 3 can be controlled to drive the wiping component 2 to rotate forward to the low position. When the wiping component 2 is at the low position and the scraping component 12 is at the first position, the wiping component 12 is cleaned. Then, the wiping drive component 3 is controlled to drive the wiping component 2 to rotate reversely. When the wiping component 2 is at the high position and the scraping component 12 is at the second position, the wiping component 12 is cleaned.

[0082] When the cleaning device leaves the base station, the wiping drive component 3 drives the wiping component 2 to the high position, and at this time, the scraping component 12 is in contact with the wiping component 2 at the second position. Since the scraping component 12 is at the second position, it will have a certain impact on the cleaning device leaving the cleaning base station. However, the cleaning device can still overcome the resistance between the wiping component 2 and the scraping component 12 under the drive of the driving device and leave the cleaning base station. When the cleaning device returns to the cleaning base station, since the scraping component 12 is at the second position, the scraping component 12 has a certain impact on the cleaning device being received in the cleaning base station. However, the cleaning device can still overcome the resistance between the wiping component 2 and the scraping component 12 under the drive of the driving device and return to the cleaning base station.

[0083] As described above, for the cleaning cloth 22 having a certain thickness in the height direction, when the distance between the scraping and washing assembly 12 and the cloth disk 21 of the cleaning cloth assembly 2 is within a certain range, the scraping and washing assembly 12 can be driven to rotate together when the cleaning cloth assembly 2 rotates. Therefore, when the cleaning cloth 22 has a certain thickness in the height direction, for the first position and the second position of the scraping and washing assembly 12, and the low position and the high position of the cleaning cloth assembly 2, the following three scenarios will exist:

[0084] Scenario 1: When the cleaning cloth assembly 2 is in the low position and the scraping and washing assembly 12 is located at the first position, when the cleaning cloth assembly 2 is rotated in the reverse direction to the high position, at this time, the scraping and washing assembly 12 also just rotates to the second position.

[0085] Scenario 2: When the cleaning cloth assembly 2 is in the low position and the scraping and washing assembly 12 is located at the first position, when the cleaning cloth assembly 2 is rotated in the reverse direction to the high position, at this time, the scraping and washing assembly 12 has not yet moved to the second position. Rotating the cleaning cloth assembly 2 in the reverse direction again can drive the scraping and washing assembly 12 to move to the second position, that is, when the cleaning cloth assembly 2 reaches the high position, the scraping and washing assembly 12 can continue to rotate in the reverse direction to squeeze the cleaning cloth 22 on the cleaning cloth assembly 2 until it moves to the second position; the cleaning cloth assembly 2 rotates in the forward direction and drives the scraping and washing assembly 12 to rotate in the forward direction. When the cleaning cloth assembly 2 rotates to the low position, at this time, the scraping and washing assembly 12 has not yet moved to the first position. Rotating the cleaning cloth assembly 2 in the forward direction again can drive the scraping and washing assembly 12 to move to the first position, that is, when the cleaning cloth assembly 2 reaches the low position, the scraping and washing assembly 12 continues to rotate in the forward direction to reduce the extrusion of the cleaning cloth 22 on the cleaning cloth assembly 2 until it moves to the first position.

[0086] Scenario 3: When the cleaning cloth assembly 2 is in the low position and the scraping and washing assembly 12 is located at the first position, rotate the cleaning cloth assembly 2 in the reverse direction. Before the cleaning cloth assembly 2 reaches the high position, at this time, the scraping and washing assembly 12 has moved to the second position. Rotating the cleaning cloth assembly 2 in the reverse direction again can reach the high position, that is, when the scraping and washing assembly 12 reaches the second position, the cleaning cloth assembly 2 rotates in the reverse direction to reduce the extrusion of the scraping and washing assembly 12 on the cleaning cloth assembly 2 until the cleaning cloth assembly 2 rotates to the high position; then the cleaning cloth assembly 2 rotates in the forward direction to drive the scraping and washing assembly 12 to rotate in the forward direction. When the cleaning cloth assembly 2 has not yet reached the low position, at this time, the scraping and washing assembly 12 has already moved to the first position. Rotating the cleaning cloth assembly 2 in the forward direction again can reach the low position, that is, when the scraping and washing assembly 12 reaches the first position, the cleaning cloth assembly 2 rotates in the forward direction to increase the extrusion of the scraping and washing assembly 12 on the cleaning cloth assembly 2 until the cleaning cloth assembly 2 rotates to the low position.

[0087] The above three scenarios are mainly caused by the magnitude relationship between the number of rotation circles of the scraping and washing component 12 from the first position to the second position and the number of rotation circles of the rag component 2 from the low position to the high position. In Scenario 1, the number of rotation circles of the scraping and washing component 12 from the first position to the second position is the same as the number of rotation circles of the rag component 2 from the low position to the high position; in Scenario 2, the number of rotation circles of the scraping and washing component 12 from the first position to the second position is greater than the number of rotation circles of the rag component 2 from the low position to the high position; in Scenario 3, the number of rotation circles of the scraping and washing component 12 from the first position to the second position is less than the number of rotation circles of the rag component 2 from the low position to the high position.

[0088] Preferably, the number of rotation circles of the scraping and washing component 12 from the first position to the second position is the same as the number of rotation circles of the rag component 2 from the low position to the high position. However, considering processing errors, etc., the situations of Scenario 2 and Scenario 3 may also occur.

[0089] In addition, in this embodiment, it is preferred that the height increase of the scraping and washing component 12 in one rotation is not less than the height increase of the rag component 2 in one rotation. When the rag component 2 rotates and rises in the reverse direction, the rag component 2 drives the scraping and washing component 12 to rotate in the reverse direction together. If the height increase of the scraping and washing component 12 in one rotation is greater than the height increase of the rag component 2 in one rotation, the scraping and washing component 12 increasingly squeezes the rag component 2, causing the frictional force between the two to gradually increase, which is conducive to the rag component 2 driving the scraping and washing component 12 to rise. In addition, since the scraping and washing component 12 increasingly squeezes the rag component 2 when the rag component 2 rotates in the reverse direction, it is also beneficial that when the scraping and washing component 12 is in the second position, the rag component 2 can better remove the debris of the rag component 2 during the reverse rotation process, achieving a better cleaning effect.

[0090] In summary, for the chassis device 1 provided in this embodiment, through the threaded structure 13 between the chassis assembly 11 and the scraping and washing assembly 12, and through the limiting structure between the chassis assembly 11 and the scraping and washing assembly 12 to limit the upward movement of the scraping and washing assembly 12 to stop at the second position and the downward movement to stop at the first position, the scraping and washing assembly 12 is stopped at the second position when rotating in the reverse direction and stopped at the first position when rotating in the forward direction; in addition, when the rag assembly 2 rotates in the reverse direction to the high position, it can drive the scraping and washing assembly 12 to move to the second position, and when the rag assembly 2 rotates in the forward direction to the low position, it can drive the scraping and washing assembly 12 to move to the first position, that is, during the movement of the rag assembly 2 in the height direction, the scraping and washing assembly 12 can always be in contact with the rag assembly 2, so as to realize that the rag assembly 2 can rotate relative to the scraping and washing assembly 12 for scraping and washing at the high position and the low position, that is, realize the two-way cleaning of the rag assembly 2, improve the cleaning efficiency and cleaning effect of the rag, thus effectively avoiding the influence of poor rag cleanliness on the cleaning effect of the cleaning device on the surface to be cleaned such as the ground, and improving the user experience; in addition, the movement of the scraping and washing assembly 12 in the height direction adopts passive driving when the rag assembly 2 rotates, that is, no additional driving device needs to be added for the movement of the scraping and washing assembly 12 in the height direction, and the cost is relatively low.

[0091] In this embodiment, when the scraping and washing assembly 12 scrapes the rotating rag assembly 2, water can be injected onto the rag assembly 2 to facilitate the scraping of the rag assembly 2. There are two ways to inject water onto the rag assembly 2: one is to inject water onto the rag assembly 2 through the water supply device of the cleaning device; the other is to spray water onto the rag assembly 2 through the water spraying assembly on the chassis device 1.

[0092] Regarding injecting water onto the rag assembly 2 through the water supply device of the cleaning device, please refer to Figure 3 , which shows that there are disk holes 211 provided on the rag disk 21 of the rag assembly 2. A water supply device is provided inside the cleaning device. When the water supply device works, the clean water inside the cleaning device can flow to the rag 22 through the disk holes 211 to wet the rag 22. For example, when the rag assembly 2 is in the low position and the scraping and washing assembly 12 is in the first position, the water supply device can be started to wet the rag 22 to realize the cleaning when the rag assembly 2 rotates in the forward direction; when the rag assembly 2 is in the high position and the scraping and washing assembly 12 is in the second position, the water supply device can be started to wet the rag 22 to realize the cleaning when the rag assembly 2 rotates in the reverse direction. Regarding the disk holes 211, in the Figure 3 example, there are multiple disk holes 211 and they are evenly spaced along the circumferential direction of the rag disk 21.

[0093] Regarding spraying water onto the rag assembly 2 through the water spraying assembly on the chassis device 1. Specifically, a water spraying assembly can be provided on the chassis device 1. The water spraying assembly includes a nozzle. When the cleaning device is stored in the cleaning base station, the nozzle is located directly below the rag assembly 2. When the rag assembly 2 is in the low position and the scraping assembly 12 is in the first position, the water spraying assembly can be activated to wet the rag 22, so as to achieve cleaning when the rag assembly 2 rotates forward; when the rag assembly 2 is in the high position and the scraping assembly 12 is in the second position, the water spraying assembly can be activated to wet the rag 22, so as to achieve cleaning when the rag assembly 2 rotates in reverse.

[0094] Regarding the water spraying assembly, it further includes a water pump. The water pump is connected to the water tank of the cleaning base station through a pipeline, and the nozzle is connected to the water pump through a pipeline.

[0095] In a specific example, the position of the nozzle on the chassis device 1 is fixed, that is, the nozzle is fixed on the chassis device 1. In another specific example, the height of the nozzle can be adjusted. For example, when the rag assembly 2 rotates in reverse and drives the scraping assembly 12 to move upward together, the nozzle is also raised at this time, so that when the rag assembly 2 is in the high position and the scraping assembly 12 is in the second position, the nozzle is still close to the rag assembly 2. For the height of the nozzle to be adjustable, the nozzle can be set to be connected to a linear drive structure. The linear drive structure can be a cylinder or a hydraulic cylinder, and the linear drive structure drives the nozzle to move along the height direction.

[0096] Please refer to Figures 4 - 6 , Figure 4 which is the exploded schematic diagram of the chassis device 1 provided by the embodiment of the present application, Figure 5 and which is the top view schematic diagram of the chassis device 1 provided by the embodiment of the present application; Figure 6 For Figure 5 the cross-sectional schematic diagram taken along the A-A direction in

[0097] In one embodiment, please refer to Figure 4 ,the scraping assembly 12 includes a scraping cylinder 121, and the chassis assembly 11 includes a base cylinder 113. Please refer to Figure 6 ,the scraping cylinder 121 is connected to the base cylinder 113 through a threaded structure 13.

[0098] In this embodiment, by setting the scraping cylinder 121 to be threadedly connected to the base cylinder 113, the threaded connection between the scraping assembly 12 and the chassis assembly 11 is realized, and the structure is simple, which simplifies the structure of the chassis device 1.

[0099] Regarding the mating relationship between the scraping cylinder 121 and the base cylinder 113, in one example, the scraping cylinder 121 is inserted into the base cylinder 113, and in another example, the base cylinder 113 is inserted into the scraping cylinder 121.

[0100] When the base cylinder 113 is inserted into the scrubbing cylinder 121, for example, the outer circumferential side of the base cylinder 113 is a smooth curved surface; or, referring to Figure 4 , the surface of the base cylinder 113 is a non-smooth curved surface. Specifically, referring to Figure 4 , base protrusions 1133 are formed on the base cylinder 113, and the base protrusions 1133 are distributed on the base cylinder 113 in the circumferential direction. In this embodiment, the outer circumferential side of the base cylinder 113 is not specifically limited, as long as the scrubbing cylinder 121 can rotate relative to the base cylinder 113.

[0101] Please refer to Figures 7 - 8 ; Figure 7 is an exploded view of the chassis assembly 11 provided by the embodiment of the present application; Figure 8 is a schematic diagram of the scrubbing assembly 12 provided by the embodiment of the present application.

[0102] Regarding the chassis assembly 11, in one example, please refer to Figure 7 , the chassis assembly 11 includes a chassis main body 111 and a cleaning tray 112. A base cylinder 113 is provided on the chassis main body 111, an avoidance hole 114 is provided on the cleaning tray 112, and the cleaning tray 112 is arranged on the chassis main body 111 and the base cylinder 113 passes through the avoidance hole 114.

[0103] The chassis main body 111 is supported on the main body of the cleaning base station (the main body is the structure of the cleaning base station excluding the base device), and the cleaning tray 112 is supported on the chassis main body 111. A cleaning groove is formed in the cleaning tray 112, and the cleaning groove can be used to hold sewage to facilitate the cleaning of the rag assembly 2 by the scrubbing assembly 12. Of course, a sewage discharge port is also provided on the cleaning tray 112. In this embodiment, the specific shapes of the chassis main body 111 and the cleaning tray 112 are not limited.

[0104] Regarding the chassis assembly 11, in another example, the chassis assembly 11 includes a chassis main body 111 and a cleaning tray 112. The cleaning tray 112 is arranged on the chassis main body 111, and a base cylinder 113 is provided on the cleaning tray 112.

[0105] For the scrubbing assembly 12, in one example, please refer to Figure 8 , the scrubbing assembly 12 further includes a scrubbing structure 123 and a plurality of brackets 122. The plurality of brackets 122 are spaced apart in the circumferential direction of the scrubbing cylinder 121 at one end of the scrubbing cylinder 121 away from the chassis assembly 11, and a scrubbing structure 123 is distributed on the side of each bracket 122 facing away from the chassis assembly 11.

[0106] In this embodiment, the multiple brackets 122 refer to more than two brackets 122. Preferably, the scrubbing assembly 12 includes multiple brackets 122. However, when the number of brackets 122 is one, the rag assembly 2 can also be cleaned. However, by providing multiple brackets 122, a better cleaning effect on the rag assembly 2 can be achieved. For example, the scrubbing assembly 12 can include three or four brackets 122, and the shape of the brackets 122 can be set as a long strip structure. Please refer to Figure 8 , which shows that the scrubbing assembly 12 includes three brackets 122, and the three brackets 122 are evenly spaced on the scrubbing cylinder 121.

[0107] Exemplarily, the bracket 122 and the scrubbing cylinder 121 are integrally formed; or, the bracket 122 is detachably fixed to the scrubbing cylinder 121 through a connecting member.

[0108] For the scrubbing structure 123, exemplarily, the scrubbing structure 123 is teeth or protrusions distributed on the bracket 122, or the scrubbing structure 123 is bristles. When the scrubbing structure 123 is teeth or protrusions distributed on the bracket 122, preferably, the bracket 122 and the scrubbing structure 123 are integrally formed. Please refer to Figure 8 , which shows that the scrubbing structure 123 is a protrusion distributed on the bracket 122.

[0109] Please refer to Figure 8 , one end of the scrubbing cylinder 121 away from the chassis assembly 11 is the upper end face 124, and the scrubbing structure 123 is higher than the upper end face 124 of the scrubbing cylinder 121. When the scrubbing assembly 12 abuts against the rag assembly 2, the scrubbing structure 123 is in contact with the rag assembly 2.

[0110] When the rag assembly 2 rotates relative to the scrubbing assembly 12, the scrubbing structure 123 can effectively brush off the dirt adhering to the rag, reduce the amount of adhered dirt, and improve the cleaning efficiency of the rag.

[0111] In one example, two scrubbing assemblies 12 are provided on the chassis assembly 11, and each scrubbing assembly 12 is connected to the chassis assembly 11 through a threaded structure 12, and a limiting structure is formed between each scrubbing assembly 12 and the chassis assembly 11. At this time, it is applicable to the case where two rag assemblies 2 are provided on the cleaning device. In one example, one scrubbing assembly 12 is provided on the chassis assembly 11. At this time, it is applicable to the case where one rag assembly 2 is provided on the cleaning device. That is, regarding the number of scrubbing assemblies 12 on the chassis assembly 11, reasonable settings can be made according to the actual situation.

[0112] In an embodiment where the scraping and washing assembly 12 includes a scraping and washing cylinder 121 and the chassis assembly 11 includes a base cylinder 113, the limiting structure includes 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 in the height direction of the chassis assembly 11.

[0113] The first limiting structure is used to limit the scraping and washing assembly 12 to a first position, that is, when the scraping and washing assembly 12 rotates forward to the first position, the forward rotation of the scraping and washing assembly 12 is restricted by the first limiting structure; the second limiting structure is used to limit the scraping and washing assembly 12 to a second position, that is, when the scraping and washing assembly 12 rotates backward to the second position, the backward rotation of the scraping and washing assembly 12 is restricted by the second limiting structure.

[0114] Exemplarily, the first limiting structure and the second limiting structure may be provided with the same structure or different structures.

[0115] See Figures 9 - 14 , Figure 9 which is a schematic diagram of the chassis assembly 11 provided by the embodiment of the present application; Figure 10 is Figure 9 a partial enlarged view at B in Figure 11 which is a top view schematic diagram of the cleaning scraping strip group 12 provided by the embodiment of the present application; Figure 12 is Figure 11 a sectional view taken along the B-B direction in Figure 13 which is a sectional view schematic diagram of the spiral groove 131 and the mating protrusion 132 cooperating with each other; Figure 14 which is a sectional view schematic diagram of the scraping and washing assembly 12 in the first position

[0116] Regarding the threaded structure 13, in one embodiment, please refer to Figure 10 and Figure 12 , the threaded structure 13 includes a spiral groove 131 and a mating protrusion 132, the mating protrusion 132 is located in the spiral groove 131, and the mating protrusion 132 can slide in the spiral groove 131.

[0117] The mating protrusion 132 provided in this embodiment is not limited to a spiral shape, which makes the structure simple and convenient for processing while realizing the threaded connection between the scraping and washing cylinder 121 and the base cylinder 113.

[0118] Exemplarily, a spiral groove 131 is provided on the scraping and washing cylinder 121, and a mating protrusion 132 is provided on the base cylinder 113; or, a mating protrusion 132 is provided on the scraping and washing cylinder 121, and a spiral groove 131 is provided on the base cylinder 113.

[0119] The spiral groove 131 is spiral. Regarding the spiral lead angle and the number of turns of the spiral groove 131, reasonable settings need to be made according to the cooperation with the rag assembly 2.

[0120] In an example where a spiral groove 131 is provided on the scraping cylinder 121 and a mating protrusion 132 is provided on the base cylinder 113, in a specific example, one spiral groove 131 is provided on the scraping cylinder 121, the number of mating protrusions 132 is more than one, and the trend of the mating protrusion 132 in the length direction is matched with the spiral groove 131. When there is one mating protrusion 132, it is preferred that the length of the mating protrusion 132 is close to the length of one turn of the spiral groove 131 or the length of the mating protrusion 132 is greater than the length of one turn of the spiral groove 131. When there are two or more mating protrusions 132, the multiple mating protrusions 132 are distributed along the extending direction of the spiral groove 131. In another specific example, two or more spiral grooves 131 are provided on the scraping cylinder 121, and each spiral groove 131 corresponds to one or more mating protrusions 132 respectively. For example, two spiral grooves 131 are provided on the scraping cylinder 121, and at the same time, two mating protrusions 132 are provided on the base cylinder 113 along the circumferential direction, and each mating protrusion 132 is respectively located in the corresponding spiral groove 131 to facilitate the stable connection between the scraping cylinder 121 and the base cylinder 113.

[0121] Exemplarily, the cross-sectional shape of the mating protrusion 132 is triangular, or the cross-sectional shape of the mating protrusion 132 is trapezoidal.

[0122] In one embodiment, please refer to Figure 13 , the scraping cylinder 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 cylinder 113 has a cylindrical structure, and the mating protrusion 132 is provided on the inner circumferential side of the base cylinder 113, and the scraping cylinder 121 is inserted into the base cylinder 113 from the free end of the base cylinder 113. Please refer to Figure 13 , in Figure 13 , the free end of the base cylinder 113 is the upper end face of the base cylinder 113.

[0123] Refer to Figure 12 and Figure 13 , taking the helix direction of the spiral groove 131 shown in Figure 10 as an example, when the scraping cylinder 121 rotates counterclockwise, the scraping cylinder 121 moves upward in the height direction; when the scraping cylinder 121 rotates clockwise, the scraping cylinder 121 moves downward in the height direction.

[0124] Based on the embodiment where the scraping cylinder 121 includes the connecting column 1212, in one embodiment, refer to Figure 13, a base hole 1131 is provided on the base cylinder 113, a scraping and washing hole 1211 is provided on the scraping and washing cylinder 121, a connecting column 1212 is provided inside the scraping and washing cylinder 121, and there is a gap between the connecting column 1212 and the inner wall of the scraping and washing hole 1211. The base cylinder 113 is inserted into the scraping and washing hole 1211 and the connecting column 1212 is inserted into the base hole 1131.

[0125] The structure of the scraping and washing cylinder 121 provided in this embodiment can protect the threaded structure 13 between the base cylinder 113 and the scraping and washing cylinder 121, prevent impurities from entering the threaded structure 13, and affect the movement of the scraping and washing cylinder 121 relative to the base cylinder 113 in the height direction.

[0126] Exemplarily, the outer circumferential side surface of the base cylinder 113 is attached to the hole wall surface of the scraping and washing hole 1211 (the inner side surface of the scraping and washing cylinder 121) to prevent impurities from entering the threaded structure 13; or, there is a gap between the outer circumferential side surface of the base cylinder 113 and the hole wall surface of the scraping and washing hole 1211.

[0127] Please refer to Figure 12 and Figure 13 , in Figure 12 and Figure 13 In the examples of, a step is formed on the outer circumferential side surface of the scraping and washing cylinder 121; a step is also formed on the inner circumferential side surface of the scraping and washing cylinder 121. The step on the scraping and washing cylinder 121 can be called the scraping and washing step 1215; refer to Figure 13 , a step is formed on the outer circumferential side surface of the base cylinder 113. The step on the base cylinder 113 can be called the base step 1134. When the scraping and washing cylinder 121 is in the first position, the scraping and washing step 1215 on the inner circumferential side surface of the scraping and washing cylinder 121 is in contact with the base step 1134 on the outer circumferential side surface of the base cylinder 113; or, the scraping and washing step 1215 on the inner circumferential side surface of the scraping and washing cylinder 121 is not in contact with the base step 1134 on the outer circumferential side surface of the base cylinder 113.

[0128] In a specific embodiment, please refer to Figure 13 , a guiding hole 1213 is provided on the connecting column 1212, and a guiding column 1132 is provided inside the base cylinder 113. The guiding column 1132 is inserted into the guiding hole 1213.

[0129] By providing the guiding column 1132 inserted into the guiding hole 1213, it is convenient for the scraping and washing cylinder 121 to be assembled on the base cylinder 113 and conducive to guiding the movement of the scraping and washing cylinder 121 in the height direction.

[0130] Regarding the first limiting structure, in one embodiment, please refer to Figure 12 and Figure 13, one end of the connecting column 1212 inserted into the base column 113 is the 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. When the scraping and washing assembly 12 is in the first position, the spiral abutting end face 133 abuts against the mating protrusion 132 to form a first limiting structure.

[0131] Please refer to Figure 12 , which shows one end of the spiral groove 131 away from the scraper insertion end 1214, that is, the spiral abutting end face 133. When the connecting column 1212 rotates forward and moves downward, if the end face of the mating protrusion 132 contacts the spiral abutting end face 133, as Figure 13 shown, if the connecting column 1212 continues to rotate forward, since the mating protrusion 132 abuts against the spiral abutting end face 133, the connecting column 1212 cannot continue to rotate, that is, the scraping and washing assembly 12 cannot continue to rotate, realizing the formation of the first limiting structure by the cooperation of the mating protrusion 132 and the spiral abutting end face 133.

[0132] Exemplarily, please refer to Figure 13 , the mating protrusion 132 is arranged near the upper end face of the base column 113, so as to ensure the movement range of the scraping and washing assembly 12 while matching the movement range of the rag assembly 2 in the cleaning device in the height direction, and the length of the base column 113 in the height direction can be reduced.

[0133] The first limiting structure provided in this embodiment has a simple structure and can be realized by the cooperation of one end of the spiral groove 131 and the mating protrusion 132.

[0134] Regarding the first limiting structure, in another embodiment, when the scraping and washing assembly 12 rotates forward and moves downward, the base column 113 cannot continue to rotate downward by the abutment of the scraping column 121 and the chassis assembly 11 or by the abutment of the guide column 1132 in the base column 113 and the scraping column 121 (at this time, when in the first position, the mating protrusion 132 has not yet rotated to the end of the spiral groove 131), so that the forward rotation of the scraping and washing assembly 12 stops at the first position. Please refer to Figure 12 and Figure 13 , and it can also make the base column 113 unable to continue to rotate downward by the contact between the scraping step 1215 on the inner circumferential surface of the scraping column 121 and the base step 1134 on the outer circumferential surface of the base column 113, so that the forward rotation of the scraping and washing assembly 12 stops at the first position.

[0135] Regarding the second limiting structure, in one embodiment, please refer to 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 to the second section 12122. A spiral groove 131 is provided on the first section 12121. One end of the second section 12122 away from the first section 12121 is a squeegee insertion end 1214. The diameter of the second section 12122 is smaller than that of the first section 12121. The spiral groove 131 is on the end face of the first section 12121 close to the second section 12122. A limiting member 14 is sleeved on the second section 12122. When the washing component 12 is in the second position, the limiting member 14 abuts against the mating projection 132 to form a second limiting structure.

[0136] In this embodiment, when the limiting member 14 is not provided and the washing component 12 is rotated reversely, the mating projection 132 will screw out of the spiral groove 131; see Figure 14 , by providing the limiting member 14, when the washing component 12 is in the second position, the limiting member 14 abuts against the mating projection 132, so that the reverse rotation of the washing component 12 stops at the second position.

[0137] Please refer to Figure 12 , a spiral groove 131 is provided on the first section 12121. Since the spiral groove 131 is provided on the first section 12121, spiral ribs 12123 will be formed on the first section 12121. The diameter of the second section 12122 is smaller than that of the first section 12121. Exemplarily, the diameter of the second section 12122 can be set equal to the diameter of the bottom surface of the spiral groove 131.

[0138] The second limiting structure provided by this embodiment has a simple structure and is convenient for processing.

[0139] Regarding the second limiting structure, in another embodiment, similar to the first limiting structure, the spiral groove 131 abuts against the mating projection 132 at one end close to the insertion end 1214 of the connecting column to form a second limiting structure.

[0140] In the embodiment where the limiting member 14 is sleeved on the connecting column 1212, in one embodiment, the limiting member 14 includes a sleeve body 142 and an abutting projection 141. The abutting projection 141 is connected to the sleeve body 142. The sleeve body 142 is sleeved on the second section 12122. The abutting projection 141 is provided at one end of the spiral groove 131 close to the insertion end 1214 of the connecting column.

[0141] See Figure 12 , it shows an abutting projection 141 provided at one end of the spiral groove 131 close to the squeegee insertion end 1214. In Figure 14Continue to rotate the connecting column 1212 in the reverse direction. Since the abutting protrusion 141 abuts against the mating protrusion 132, further, the reverse rotation of the connecting column 1212 is restricted. In this embodiment, the abutting protrusion 141 is arranged at one end of the spiral groove 131 close to the insertion end 1214 of the wiper strip to achieve the limit, and the structure is simple and convenient for processing.

[0142] Please compare Figure 13 and Figure 14 , Figure 13 and Figure 14 which schematically show two position states of the wiper assembly 12. Figure 13 In [reference], the end face of the mating protrusion 132 contacts the spiral abutting end face 133. At this time, the wiper assembly 12 is in the first position. Figure 14 In [reference], the abutting protrusion 141 on the limiting member 14 abuts against the mating protrusion 132. At this time, the wiper assembly 12 is in the second position.

[0143] When there is one spiral groove 131, the number of mating protrusions 132 can be set to more than one, and the number of abutting protrusions 141 on the sleeve 142 is the same as the number of spiral grooves 131. Taking three mating protrusions 132 as an example, the three mating protrusions 132 are the first mating protrusion, the second mating protrusion and the third mating protrusion respectively. The first mating protrusion, the second mating protrusion and the third mating protrusion are distributed in sequence along the extending direction of the spiral groove 131, and from the direction of the first mating protrusion to the third mating protrusion, the extending directions of the first mating protrusion, the second mating protrusion and the third mating protrusion gradually downward. At this time, when the wiper assembly 12 is in the first position, one end of the first mating protrusion abuts against the spiral abutting end face 133; when the wiper assembly 12 is in the second position, one end of the third mating protrusion abuts against the abutting protrusion 141 on the limiting member 14.

[0144] When there are two or more spiral grooves 131, each spiral groove 131 is provided with more than one mating protrusion 132, and the number of abutting protrusions 141 on the sleeve 142 is the same as the number of spiral grooves 131. The abutting protrusions 141 are respectively arranged at one end of the corresponding spiral groove 131 close to the insertion end 1214 of the connecting column. For example, taking three spiral grooves 131 as an example, the three spiral grooves 131 are the first spiral groove, the second spiral groove and the third spiral groove respectively. The first spiral groove, the second spiral groove and the third spiral groove are respectively provided with a mating protrusion 132, and spiral abutting end faces 133 are formed on the first spiral groove, the second spiral groove and the third spiral groove. When the wiper assembly 12 is in the first position, the three mating protrusions 132 respectively contact the spiral abutting end faces 133 of the first spiral groove, the second spiral groove and the third spiral groove; when the wiper assembly 12 is in the second position, the three mating protrusions 132 respectively contact the three abutting protrusions 141.

[0145] Exemplarily, the limiting member 4 is tightly fitted or adhered to the second section 12122; or, the limiting member 4 is tightly fitted or adhered to the first section 12121. For example, the limiting member 4 is tightly fitted to the first section 12121 through the abutting protrusions 141 circumferentially distributed thereon.

[0146] This embodiment provides a cleaning base station, including the chassis device 1 provided in any of the above embodiments.

[0147] 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 store the idle cleaning device and supply power for charging the cleaning device and cleaning the rag.

[0148] This embodiment provides a cleaning system, including a cleaning device and a cleaning base station; the cleaning device includes a rag assembly 2 and a rag driving assembly 3. The rag driving assembly 3 is connected to the rag assembly 2. The rag driving assembly 3 is used to drive the rag assembly 2 to rotate bidirectionally and move between a low position and a high position, and drive the scrubbing assembly 12 to move between a first position and a second position through the rag assembly 2. The scrubbing assembly 12 stops rotating at the first position and the second position.

[0149] When the rag assembly 2 rotates reversely, it can drive the scrubbing assembly 12 on the chassis device 1 to rotate and rise together. When the rag assembly 2 reaches the high position, the rag assembly 2 can reach the second position driven by the scrubbing assembly 12. The scrubbing assembly 12 stops rising and reverse rotation at the second position, and the rag assembly 2 continues to rotate reversely to achieve reverse cleaning. When the rag assembly 2 rotates forward, it can drive the scrubbing assembly 12 to rotate and descend forward together. When the rag assembly 2 reaches the low position, the rag assembly 2 can reach the first position driven by the scrubbing assembly 12. The scrubbing assembly 12 stops descending and forward rotation at the first position, and the rag assembly 2 continues to rotate forward to achieve forward cleaning.

[0150] The cleaning device can be a floor washer, a sweeping robot, a mopping and sweeping robot, etc., and the embodiments of the present application are not limited thereto.

[0151] The cleaning system provided in this embodiment can achieve bidirectional cleaning of the rag assembly 2, improve the cleaning efficiency and cleaning effect of the rag, thereby effectively avoiding the influence of poor rag cleanliness on the cleaning effect of the cleaning device on the surface to be cleaned such as the ground, and thus improving the user experience.

[0152] Please refer to Figures 15 - 18 , Figure 15 which is a cross-sectional view of the base device 1, the rag assembly 2 and the rag driving assembly 3 provided in the embodiments of the present application; Figure 16 is Figure 15 a partial enlarged view of C in Figure 17Schematic diagram of the rag driving component 3 provided by the embodiment of the present application; Figure 18 Internal schematic diagram of the rag driving component 3 provided by the embodiment of the present application.

[0153] In one embodiment, please refer to Figures 15 - 18 , the rag driving component 3 includes a housing 31, a driving motor 32, a first connecting member 34, a second connecting member 35, and a rag limiting component. The driving motor 32 is in transmission connection with the first connecting member 34. The first connecting member 34 is in threaded connection with the second connecting member 35. The second connecting member 35 is also connected to the housing 31. The first connecting member 34 is connected to the rag component 2. The rag limiting component is used to limit the moving range of the first connecting member 34 relative to the second connecting member 35 in the height direction. The lead angle of the thread structure 13 on the chassis device 1 is greater than the lead angle between the first connecting member 34 and the second connecting member 35.

[0154] Please refer to Figure 15 and Figure 16 , the first connecting member 34 is fixedly connected to the rag component 2. Therefore, the movement of the first connecting member 34 is consistent with that of the rag component 2. Regarding the first connecting member 34 and the second connecting member 35, when the first connecting member 34 rotates forward to the low position, and then the first connecting member 34 rotates forward again, the first connecting member 34 and the second connecting member 35 rotate together; when the first connecting member 34 rotates backward to the high position, and then the first connecting member 34 rotates backward again, the first connecting member 34 and the second connecting member 35 rotate together; when the first connecting member 34 moves in the height direction by rotating backward or forward, the position of the second connecting member 35 remains unchanged, realizing the movement of the first connecting member 34 relative to the second connecting member 35 in a certain range in the height direction.

[0155] In this embodiment, the lead angle of the thread structure 13 on the chassis device 1 is greater than the lead angle between the first connecting member 34 and the second connecting member 35. Wherein, the lead angle is the angle between the tangent of the helix and the plane perpendicular to the axis of the thread.

[0156] In a scenario, if 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, then the lead angle of the thread structure 13 on the chassis device 1 is set to be greater than the lead angle between the first connecting member 34 and the second connecting member 35. The cooperation process between the scraping assembly 12 and the wiping cloth assembly 2 is as follows: when the wiping cloth assembly 2 is in the low position and the scraping assembly 12 is in the second position, the wiping cloth driving assembly 3 is driven to drive the wiping cloth assembly 2 to rotate in the reverse direction. The wiping cloth assembly 2 drives the scraping assembly 12 to rotate in the reverse direction together. Since the lead angle of the thread structure 13 on the chassis device 1 is greater than the lead angle between the first connecting member 34 and the second connecting member 35, the height that the scraping assembly 12 rises in one turn of rotation is greater than the height that the wiping cloth assembly 2 rises in one turn of rotation. Therefore, as the wiping cloth assembly 2 drives the scraping assembly 12 to rotate in the reverse direction together, the scraping assembly 12 increasingly squeezes the wiping cloth assembly 2, making the frictional force between the two gradually increase, 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.

[0157] In this embodiment, by setting the lead angle of the thread structure 13 on the chassis device 1 to be greater than the lead angle between the first connecting member 34 and the second connecting member 35, it is conducive to the wiping cloth assembly 2 driving the scraping assembly 12 to rotate together.

[0158] In a specific embodiment, the lead angle of the thread structure 13 on the chassis device 1 is greater than 1.5 times the lead angle between the first connecting member 34 and the second connecting member 35.

[0159] By setting the lead angle of the thread structure 13 on the chassis device 1 to be greater than 1.5 times the lead angle between the first connecting member 34 and the second connecting member 35, the wiping cloth assembly 2 can stably drive the scraping assembly 12 to rotate together.

[0160] Regarding the wiping cloth driving assembly 3, in a specific embodiment, please refer to Figures 16 - 18 , the wiping cloth driving assembly 3 further includes an intermediate transmission structure 33. The driving motor 32 is arranged on one side of the housing 31. The driving motor 32 is connected to the first connecting member 34 through the intermediate transmission structure 33. The second connecting member 35 is limited on the housing 31. Please refer to Figure 16 , the first connecting member 34 is threadedly connected to the second connecting member 35, and the first connecting member 34 is connected to the wiping cloth assembly 2.

[0161] In a specific example, please refer to Figure 18The intermediate transmission structure 33 includes a worm 331, a turbine 332, a first gear 333 and a second gear 334. The worm 331 is connected to the driving motor 32, the turbine 332 is meshed with the worm 331, the first gear 333 is coaxially arranged with the turbine 332, and the second gear 334 is meshed with the first gear 333.

[0162] See also Figure 16 The second gear 334 is supported on the housing 31 by a bearing 36. One end of the first connecting member 34 is inserted into the second gear 334. The axes of the first connecting member 34 and the second gear 334 are colinear, and one of the first connecting member 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, and the groove extends along the axis direction of the first connecting member 34. The protrusion can slide along the extension direction of the groove, so that when the second gear 334 rotates, the first connecting member 34 is driven to rotate, and the first connecting member 34 can also move relative to the second gear 334 along the axis direction. A mounting hole 341 is provided in the first connecting member 34. The rag assembly 2 is inserted into the mounting hole 341 on the first connecting member 34 from the side away from the second gear 334. The rag assembly 2 is fixedly connected to the first connecting member 34. A threaded groove 342 is formed on the first connecting member 34. A threaded protrusion is provided on the inner side surface of the cylindrical second connecting member 35 (the threaded protrusion is at Figure 16 (not shown in the figure), the threaded protrusion cooperates with the threaded groove 342, and the threaded protrusion and the threaded groove 342 form a threaded connection.

[0163] See also Figure 16 An annular portion 351 is formed on the circumferential outer surface of the second connecting member 35, and the annular portion 351 is added between the first component 38 and the second component 39, and a spring 310 is arranged below the second component 39, and the spring 310 is squeezed between the inner side surface of the shell 31 and the second component 39.

[0164] For the mop limiter assembly, see Figure 16 A limiting component 37 is provided on the first connecting member 34. When the driving motor 32 works to drive the first connecting member 34 to rotate, since the second connecting member 35 is limited on the housing 31 by the first component 38 and the second component 39, the second connecting member 35 does not move, and the first connecting member 34 moves downward. When the limiting component 37 moves to abut against the threaded protrusion on the second connecting member 35, the first connecting member 34 drives the second connecting member 35 to rotate, that is, the force of the first connecting member 34 acting on the second connecting member 35 overcomes the force of the first component 38 and the second component 39 on the second connecting member 35. When the first connecting member 34 and the second connecting member 35 rotate together, the first connecting member 34 no longer continues to move downward. When the driving motor 32 drives the first connecting member 34 to rotate in the opposite direction, the second connecting member 35 does not move, and the first connecting member 34 rotates in the opposite direction and moves upward. When the first connecting member 34 moves to the position as shown in the figureFigure 16 When in the position shown, the thread protrusion abuts against the end of the thread groove 342, causing the first connecting member 34 to drive the second connecting member 35 to rotate in the reverse direction together, and the first connecting member 34 no longer moves upward.

[0165] The above gives a specific embodiment of the rag driving assembly 3, but the structure of the rag driving assembly 3 is not limited to the content of the above specific embodiment.

[0166] Based on the embodiment in which 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, when the first connecting member 34 rotates in the reverse direction until the thread protrusion on the second connecting member 35 abuts against the end of the thread groove 342, at this time, the first connecting member 34 no longer rises, and the first connecting member 34 drives the rag assembly 2 to move to the high position, and the rag assembly 2 drives the scrubbing assembly 12 to move to the second position; when the second connecting member 34 rotates in the forward direction until the limiting member 37 abuts against the thread protrusion on the second connecting member 35, at this time, the first connecting member 34 no longer descends, and the first connecting member 34 drives the rag assembly 2 to move to the low position, and the rag assembly 2 drives the scrubbing assembly 12 to move to the first position.

[0167] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A chassis device, characterized in that, It includes a chassis assembly (11), a scraping and washing assembly (12), and a threaded structure (13). The chassis assembly (11) and the scraping and washing assembly (12) are connected by the threaded structure (13). A limiting structure is formed between the chassis assembly (11) and the scraping and washing assembly (12). The limiting structure is used to limit the moving range of the scraping and washing assembly (12) in the height direction of the chassis assembly (11). When the rag assembly (2) in the cleaning device rotates bidirectionally and moves between a low position and a high position, the scraping and washing assembly (12) can be driven to move between a first position and a second position by the rag assembly (2).

2. The chassis device according to claim 1, wherein The scraping and washing assembly (12) includes a scraping and washing cylinder (121). The chassis assembly (11) includes a base cylinder (113). The scraping and washing cylinder (121) and the base cylinder (113) are connected by the threaded structure (13). The limiting structure includes a first limiting structure and a second limiting structure. The first limiting structure and the second limiting structure are respectively formed at opposite ends of the threaded structure (13) in the height direction of the chassis assembly (11).

3. The chassis device according to claim 2, wherein, The threaded structure (13) includes a spiral groove (131) and a mating protrusion (132). The mating protrusion (132) can slide in the spiral groove (131).

4. The chassis device according to claim 3, characterized in that, The scraping and washing cylinder (121) includes a connecting column (1212). The spiral groove (131) is formed on the outer circumferential side of the connecting column (1212). The base cylinder (113) has a cylindrical structure. The mating protrusion (132) is arranged on the inner circumferential side of the base cylinder (113). The scraping and washing cylinder (121) is inserted into the base cylinder (113) from the free end of the base cylinder (113).

5. The chassis device according to claim 4, characterized in that, One end of the connecting column (1212) inserted into the base cylinder (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). When the scraping and washing assembly (12) is in the first position, the spiral abutting end face (133) abuts against the mating protrusion (132) to form the first limiting structure.

6. The chassis device according to claim 4, characterized in that, The connecting column (1212) includes a first section (12121) and a second section (12122). The first section (12121) is connected to the second section (12122). The spiral groove (131) is provided on the first section (12121). One end of the second section away from the first section (12121) is the insertion end (1214) of the connecting column. The diameter of the second section (12122) is smaller than that of the first section (12121). One end of the spiral groove (131) is close to the second section (12122). A limiting member (14) is provided on the second section (12122). When the scrubbing assembly (12) is in the second position, the limiting member (14) abuts against the mating protrusion (132) to form the second limiting structure.

7. The chassis device according to claim 6, characterized in that, The limiting member (14) includes 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 sleeved on the second section (12122). The abutting protrusion (141) is provided at one end of the spiral groove (131) close to the insertion end (1214) of the connecting column.

8. The chassis device according to claim 7, characterized in that, There are more than two spiral grooves (131). One or more mating protrusions (132) are fitted in each spiral groove (131). The number of the abutting protrusions (141) is the same as the number of the spiral grooves (131). The abutting protrusions (141) are respectively provided at one end of the corresponding spiral grooves (131) close to the insertion end (1214) of the connecting column.

9. The chassis device according to claim 4, characterized in that, A base hole (1131) is provided on the base column (113). A scrubbing hole (1211) is provided on the scrubbing column (121). The connecting column (1212) is provided in the scrubbing column (121) and there is a gap between the connecting column (1212) and the inner wall of the scrubbing hole (1211). The base column (113) is inserted into the scrubbing hole (1211), and the connecting column (1212) is inserted into the base hole (1131).

10. A cleaning base station, characterized in that, It includes the chassis device according to any one of claims 1-9.

11. A cleaning system, characterized in that, It includes a cleaning device and the cleaning base station according to claim 10; the cleaning device includes a rag assembly (2) and a rag driving assembly (3). The rag driving assembly (3) is connected to the rag assembly (2). The rag driving assembly (3) is used to drive the rag assembly (2) to rotate bidirectionally and move between a low position and a high position, and drive the scrubbing assembly (12) to move between a first position and a second position through the rag assembly (2). The scrubbing assembly (12) stops rotating at the first position and the second position.

12. The cleaning system according to claim 11, wherein, The rag driving assembly (3) includes a driving motor (32), a first connecting member (34), a second connecting member (35), and a rag limiting assembly. The driving motor (32) is in transmission connection with the first connecting member (34). The first connecting member (34) is threadedly connected to the second connecting member (35). The first connecting member (34) is fixedly connected to the rag assembly (2). The rag limiting assembly is used to limit the moving range of the first connecting member (34) relative to the second connecting member (35) along a first direction. The lead angle of the thread structure (13) on the chassis device (1) is greater than the lead angle between the first connecting member (34) and the second connecting member (35).

13. The cleaning system according to claim 12, wherein, The lead angle of the thread structure (13) is greater than 1.5 times the lead angle between the first connecting member (34) and the second connecting member (35).

Images