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 intelligent furniture, the chassis device comprises a chassis assembly, a scraping assembly, a lifting structure and a limiting structure; the scraping and washing assembly is used for cleaning the cleaning cloth assembly which can perform lifting motion and can perform forward rotation and reverse rotation; the limiting structure is connected with the scraping assembly and used for limiting rotation of the scraping assembly relative to the chassis assembly; the lifting structure is arranged between the chassis assembly and the scraping and washing assembly and at least used for driving the scraping and washing assembly to be lifted in the direction away from the chassis assembly, so that the cleaning cloth assembly can be kept in contact with the scraping and washing assembly in at least part of the time period of the forward rotation state and the reverse rotation state. According to the chassis device, bidirectional cleaning of the cleaning cloth assembly can be achieved, the cleaning efficiency of the cleaning cloth is improved, the cleaning effect of the cleaning cloth is improved, and therefore the situation that the cleaning effect of the cleaning equipment on the to-be-cleaned face such as the ground is affected due to poor cleanliness of the cleaning cloth can be effectively avoided, and the user experience is improved.

Description

Technical Field

[0001] This application belongs to the technical field of intelligent furniture, 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 a cleaning robot, it is usually for the cleaning robot to return to the cleaning base station and complete the cleaning of the cleaning cloth within the cleaning base station. However, all the cleaning solutions used for cleaning the cleaning cloth within the cleaning base station can only clean the cleaning cloth unidirectionally. However, most of the cleaning cloths used by cleaning robots are long-villous types. Only performing a single-directional scraping on the cleaning cloth will cause a large amount of dust to be hidden on the back of the villi of the cleaning cloth, 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 that the cleaning effect of the cleaning cloth of the cleaning robot within the cleaning base station is poor.

[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 assembly, a scraping and washing assembly, a lifting structure, and a limiting structure; the scraping and washing assembly is used for cleaning a cleaning cloth assembly that can perform lifting movement and can rotate forward and backward;

[0006] The limiting structure is connected to the scraping and washing assembly and is used to limit the rotation of the scraping and washing assembly relative to the chassis assembly;

[0007] The lifting structure is arranged between the chassis assembly and the scraping and washing assembly. The lifting structure is at least used to drive the scraping and washing assembly to lift in a direction away from the chassis assembly, so that the cleaning cloth assembly can be in contact with the scraping and washing assembly during at least part of the period in the forward rotation and reverse rotation states.

[0008] In a feasible implementation manner, the scraping and washing assembly includes a scraping and washing cylinder, and the chassis assembly includes a base cylinder. The scraping and washing cylinder is inserted and connected to the base cylinder, and the scraping and washing cylinder can be lifted relative to the base cylinder.

[0009] In a feasible implementation manner, a limiting structure is formed between the scraping and washing cylinder and the base cylinder, and the limiting structure is used to guide the movement of the scraping and washing assembly relative to the chassis assembly.

[0010] In a feasible implementation manner, a base hole is provided on the base cylinder, a scraping and washing hole is provided on the scraping and washing cylinder, the base cylinder is inserted into the scraping and washing hole, and the lifting structure is located within the base hole.

[0011] In a feasible implementation, a guiding column is arranged in the base hole, and there is a gap between the guiding column and the hole wall of the base hole. A positioning column is arranged in the scraping and washing hole, and there is a gap between the positioning column and the hole wall of the scraping and washing hole. The guiding column is inserted into the positioning column; the lifting structure is sleeved outside the guiding column and the positioning column.

[0012] In a feasible implementation, the lifting structure is an elastic component, and the direction of elastic deformation of the lifting structure is consistent with the moving direction of the scraping and washing assembly.

[0013] In a feasible implementation, the limiting structure includes a guiding groove and a limiting rib. The limiting rib is located in the guiding groove. One of the guiding groove and the limiting rib is arranged on the scraping column body, and the other is arranged on the base column body. The length extension direction of the guiding groove is along the lifting direction of the scraping and washing assembly.

[0014] In a feasible implementation, there are multiple limiting ribs, and the multiple limiting ribs are distributed on the base column body at intervals along the circumferential direction of the base column body; there are multiple guiding grooves, and the guiding grooves correspond to the limiting ribs one by one.

[0015] In a feasible implementation, the chassis assembly includes a chassis main body and a cleaning tray. A base column body is arranged on the chassis main body, an avoidance hole is arranged on the cleaning tray, and the cleaning tray is arranged on the chassis main body and the base column body passes through the avoidance hole.

[0016] In a feasible implementation, the scraping and washing assembly further includes a scraping and washing structure and multiple brackets. The multiple brackets are distributed on one end of the scraping column body away from the chassis assembly at intervals along the circumferential direction of the scraping column body, and the scraping and washing structure is distributed on the side of each bracket facing away from the chassis assembly.

[0017] In a feasible implementation, the lifting structure is a linear driving mechanism.

[0018] The second aspect of the present application provides a cleaning base station, including the chassis device provided by any of the above technical solutions.

[0019] 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, and the rag driving assembly is used to drive the rag assembly to move.

[0020] Compared with the prior art, the present application at least includes the following beneficial effects:

[0021] The chassis device provided in this embodiment can lift the scraping and washing assembly in a direction away from the chassis assembly through a lifting structure, and when the scraping and washing assembly is lifted upward, it can be in contact with the reversely rotating rag assembly at least for some time periods. The limiting structure is used to prevent the scraping and washing assembly from rotating relative to the chassis assembly, so as to realize the reverse cleaning of the rag assembly when the rag assembly rotates upward in reverse, and the rag assembly is also in contact with the scraping and washing assembly at least for some time periods when it is in the forward rotation state. Furthermore, the two-way cleaning of the rag assembly can be realized, improving 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.

[0022] 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. Brief Description of the Drawings

[0023] 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 drawings in the following description 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.

[0024] Figure 1 Schematic diagram of the chassis device provided in the embodiment of the present application;

[0025] Figure 2 Schematic diagram of the cooperation between the chassis device provided in the embodiment of the present application and the rag assembly;

[0026] Figure 3 Exploded schematic diagram of the cooperation between the chassis device provided in the embodiment of the present application and the rag assembly;

[0027] Figure 4 Exploded schematic diagram of the chassis device provided in the embodiment of the present application;

[0028] Figure 5 Exploded schematic diagram of the chassis assembly provided in the embodiment of the present application;

[0029] Figure 6 Top view schematic diagram of the scraping and washing assembly provided in the embodiment of the present application;

[0030] Figure 7 Top view schematic diagram of the chassis device provided in the embodiment of the present application;

[0031] Figure 8 For Figure 7 Cross-sectional schematic diagram taken along the A-A direction in

[0032] Figure 9is Figure 8 Partial enlarged view of position A in Figure 8 (scrubbing component in the first position);

[0033] Figure 10 Schematic cross-sectional view of the scrubbing component in the second position;

[0034] Figure 11 Schematic diagram of the chassis main body provided by the embodiment of the present application;

[0035] Figure 12 is Figure 11 Partial enlarged view of position B in Figure 11 ;

[0036] Figure 13 Schematic diagram of the bottom of the scrubbing component provided by the embodiment of the present application;

[0037] Figure 14 Schematic cross-sectional view of the chassis device, rag component and rag driving component provided by the embodiment of the present application;

[0038] Figure 15 is Figure 14 Partial enlarged view of position C in Figure 14 ;

[0039] Figure 16 Schematic diagram of the rag driving component provided by the embodiment of the present application;

[0040] Figure 17 Internal schematic diagram of the rag driving component provided by the embodiment of the present application.

[0041] Among them, each reference numeral in the figure:

[0042] 1 - chassis device; 2 - rag component; 3 - rag driving component;

[0043] 11 - chassis component; 12 - scrubbing component; 13 - lifting structure; 14 - limiting structure;

[0044] 111 - chassis main body; 112 - cleaning tray; 113 - base column; 114 - avoidance hole;

[0045] 1131 - base hole; 1132 - guide post; 1133 - base step;

[0046] 121 - scrubbing column; 122 - bracket; 123 - scrubbing structure; 124 - upper end face;

[0047] 1211 - scrubbing hole; 1212 - positioning post; 1213 - scrubbing step;

[0048] 141 - guide groove; 142 - limiting rib;

[0049] 21 - rag; 22 - rag bracket;

[0050] 221 - Bracket hole;

[0051] 31 - Housing; 32 - Driving motor; 33 - Intermediate transmission structure; 34 - First connecting member; 35 - Second connecting member; 36 - Bearing; 37 - Limiting member; 38 - First component; 39 - Second component; 310 - Spring;

[0052] 331 - Worm; 332 - Turbine; 333 - First gear; 334 - Second gear;

[0053] 341 - Mounting hole; 342 - Threaded groove;

[0054] 351 - Annular portion. Detailed implementation manner

[0055] To make the objectives, technical solutions, and advantages of this application clearer, the following will further describe the implementation manners of this application in detail with reference to 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 a limitation to this application.

[0056] 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, and 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 a limitation to this application.

[0057] For the convenience of clearly describing the technical solutions of this application, terms such as "first" and "second" are used to distinguish the same items or similar items with basically the same functions and roles. Those skilled in the art can understand that the terms such as "first" and "second" do not limit the quantity and execution order, and the terms such as "first" and "second" do not necessarily limit being different.

[0058] In this application, unless otherwise clearly specified and limited, the terms "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 it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0059] In this application, "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships; for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0060] It should be noted that, in this application, words such as "in one embodiment", "exemplarily", "for example", etc. are used to indicate examples, illustrations or descriptions. Any embodiment or design described in this application as "in one embodiment", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in one embodiment", "exemplarily", "for example", etc. is intended to present related concepts in a specific way.

[0061] Figure 1 A schematic diagram of a chassis device 1 provided in an embodiment of the present application, Figure 2 This is a schematic diagram of the cooperation between the chassis device 1 and the rag assembly 2 provided in an embodiment of the present application. Figure 3 The exploded schematic diagram of 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 the present embodiment, for the convenience of description, the following direction definition is made: the chassis device 1 can be calibrated by defining the following three mutually perpendicular axes: the lateral axis X, the front-rear axis Y and the vertical axis Z. The vertical axis Z is the direction extending vertically upward along the bottom surface of the chassis device 1. Figure 1 As shown, the direction along the vertical axis Z is defined as the first direction.

[0062] The chassis device 1 provided in this embodiment includes a chassis component 11 , a scraping and washing component 12 , a lifting structure 13 and a limiting structure 14 .

[0063] The chassis device 1 is placed in a cleaning base station, and the cleaning base station is used in conjunction 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 to charge the cleaning device and clean the rag. When the cleaning device is stored in the cleaning base station, the cleaning device is supported on the chassis device 1.

[0064] See also Figure 1 The chassis device 1 provided in this embodiment includes a chassis component 11 and a scraping and washing component 12. The scraping and washing component 12 is arranged on the chassis component 11. The chassis component 11 is used to support the scraping and washing component 12. The scraping and washing component 12 is used to clean the rag component 2 of the cleaning equipment. When the cleaning equipment is stored in the cleaning base station, the rag component 2 of the cleaning equipment is located above the scraping and washing component 12.

[0065] In the existing related technologies, the cleaning solutions used for cleaning the wiping cloth by the cleaning base station can only clean the wiping cloth unidirectionally. Specifically, the cleaning device includes a wiping cloth driving component 3 connected to the wiping cloth assembly 2. When the wiping cloth driving component 3 works, it can drive the wiping cloth assembly 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 assembly 2 to rotate forward and drive the wiping cloth assembly 2 to move downward. After moving down a certain distance, it reaches the extreme low position. At the extreme low position, the wiping cloth driving component 3 can only drive the wiping cloth assembly 2 to rotate forward and no longer drive the wiping cloth assembly 2 to move downward. At this time, the wiping cloth assembly 2 contacts the scraping component 12. At this time, continue to drive the wiping cloth driving component 3 to drive the wiping cloth assembly 2 to rotate forward, and the relative rotation of the wiping cloth assembly 2 with respect to the scraping component 12 enables the scraping component 12 to scrape the wiping cloth assembly 2. When driving the wiping cloth driving component 3 to drive the wiping cloth assembly 2 to rotate reversely, the wiping cloth assembly 2 will rise. After rising to a certain height, it reaches the extreme high position. At the extreme high position, the wiping cloth driving component 3 can only drive the wiping cloth assembly 2 to rotate reversely and no longer drive the wiping cloth assembly 2 to move upward. Since the wiping cloth assembly 2 rises after rotating reversely, the wiping cloth assembly 2 is separated from the scraping component 12, that is, the reverse rotation of the wiping cloth assembly 2 cannot scrape the wiping cloth assembly 2. Therefore, the cleaning of the wiping cloth assembly 2 in the cleaning base station can only be carried out unidirectionally, which affects the cleaning effect of the wiping cloth. Especially, most of the wiping cloth assemblies 2 are long fluff types. Only unidirectional scraping of the wiping cloth 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.

[0066] Based on the above problems, in this embodiment, a lifting structure 13 is added between the chassis assembly 11 and the scraping component 12. The lifting structure 13 is at least used to drive the scraping component 12 to lift in a direction away from the chassis assembly 11, so that the wiping cloth assembly 2 can be in contact with the scraping component 12 during at least part of the time periods in the forward rotation and reverse rotation states.

[0067] The direction away from the chassis assembly 11 is defined as the first direction, that is, the lifting structure 13 can at least lift the scraping component 12 in the first direction, so that when the wiping cloth assembly 2 rotates reversely and rises to the extreme high position, it is ensured that the wiping cloth assembly 2 is in contact with the scraping component 12 during at least part of the time periods, providing a prerequisite for the reverse rotation of the wiping cloth assembly 2 to still achieve scraping.

[0068] The lifting structure 13 lifts in the first direction. The lifting structure 13 can lift the scraping component 12 from the first position to the second position in the first direction. The first position is the lowest position of the scraping component 12. At this time, if the wiping cloth assembly 2 is at the extreme low position, the scraping component 12 contacts the wiping cloth assembly 2; the second position is the highest position where the scraping component 12 is lifted.

[0069] In this embodiment, the lifting structure 13 is at least used to drive the scrubbing component 12 to lift. That is, in a specific example, the lifting structure 13 can only drive the scrubbing component 12 to lift in the first direction. When the rag component 2 rotates forward and moves downward, the rag component 2 drives the scrubbing component 12 to move downward in the first direction. In another specific example, the lifting structure 13 can not only drive the scrubbing component 12 to lift in the first direction, but also drive the scrubbing component 12 to descend in the first direction.

[0070] The rag component 2 has a moving range in the first direction, that is, the distance between the extreme low position and the extreme high position described above. In this embodiment, the rag component 2 can be in contact with the scrubbing component 12 during at least part of the reverse rotation state. That is, during the entire process of the rag component 2 rotating reversely from the extreme low position to the extreme high position, as long as the scrubbing component 12 is lifted upward by the lifting structure 13 and remains in contact with the rag component 12 during part of the time. For example, when the rag component 2 rotates reversely from the extreme low position to a certain position (this position is lower than the extreme high position), the rag component 2 is in contact with the scrubbing component 12. When the rag component 2 continues to rotate reversely to the extreme high position, the rag component 2 is not in contact with the scrubbing component 12. Preferably, during the entire process of the rag component 2 rotating reversely from the extreme low position to the extreme high position, the lifting structure 13 can drive the scrubbing component 12 to lift upward so that the lifting structure 13 is always in contact with the rag component 2.

[0071] For the scrubbing component 12 to be lifted from the first position to the second position, in cooperation with the movement of the rag component 2 in the cleaning device in the first direction, specifically: when the rag component 2 is driven by the rag driving component 3 to move downward to the extreme low position, the position where the scrubbing component 12 is located at this time is the first position, and the rag component 2 is in contact with the scrubbing component 12. Since the lifting structure 13 can drive the scrubbing component 12 to lift, then, when the rag component 2 rotates reversely and rises to the extreme high position, the lifting structure 13 can drive the scrubbing component 12 to lift upward until the second position, and during the process of the scrubbing component 12 rising and / or when it reaches the second position, the scrubbing component 12 is in contact with the rag component 2.

[0072] Since when the scrubbing component 12 cleans the rag component 2, it is expected that the rag driving component 3 drives the rag component 2 to rotate while the scrubbing component 12 does not rotate. Therefore, in this embodiment, the scrubbing component 12 is connected to the limiting structure 14, and the limiting structure 14 is used to prevent the scrubbing component 12 from rotating relative to the chassis component 11, and thus can prevent the scrubbing component 12 from rotating together with the rag component 2. In one example, the lifting structure 13 can be connected to the scrubbing component 12 and the chassis component 11 to form the limiting structure 14 to prevent the scrubbing component 12 from rotating relative to the chassis component 11.

[0073] The chassis device 1 provided in this embodiment can achieve two-way cleaning of the rag assembly 2. The cleaning of the rag assembly 2 by the scraping assembly 12 when the rag assembly 2 rotates forward and reversely is specifically described as follows:

[0074] (1) Cleaning of the rag assembly 2 by the scraping assembly 12 when the rag assembly 2 rotates forward

[0075] When the cleaning device moves into the cleaning base station, the rag driving assembly 3 is started. The rag driving assembly 3 can drive the rag assembly 2 to rotate forward and drive the rag assembly 2 to move downward. After the rag assembly 2 moves downward a certain distance to the extreme lower position, the scraping assembly 12 is located at the first position. Continue to drive the rag driving assembly 3 to drive the rag assembly 2 to rotate forward. The relative rotation of the rag assembly 2 with respect to the scraping assembly 12 enables the scraping assembly 12 to scrape the rag assembly 2.

[0076] After the rag assembly 2 moves downward a certain distance to the extreme lower position and the scraping assembly 12 is located at the first position, as described above, there are two cases. One is that the rag assembly 2 drives the scraping assembly 12 to move downward in the first direction; the other is that the lifting structure 13 drives the scraping assembly 12 to descend in the first direction.

[0077] For the rag assembly 2 driving the scraping assembly 12 to move downward in the first direction, since the rag assembly 2 is in contact with the scraping assembly 12 and the rag assembly 2 rotates forward with respect to the scraping assembly 12, the rag assembly 2 can be cleaned.

[0078] For the lifting structure 13 driving the scraping assembly 12 to descend in the first direction, when the rag driving assembly 3 drives the rag assembly 2 to rotate forward and drive the rag assembly 2 to move downward, the lifting structure 13 can be controlled so that the lifting structure 13 drives the scraping assembly 12 to descend in the first direction and abuts against the rag assembly 2; or, the lifting structure 13 can be controlled so that the lifting structure 13 quickly drives the scraping assembly 12 to descend to the first position, so that the rag assembly 2 contacts the scraping assembly 12 after descending to the extreme lower position.

[0079] (2) Cleaning of the rag assembly 2 by the scraping assembly 12 when the rag assembly 2 rotates reversely

[0080] For the cleaning of the rag assembly 2 by the scraping assembly 12 when the rag assembly 2 rotates reversely, based on the different heights of the second position, there are the following two cases during the cleaning of the rag assembly 2 by the reverse rotation of the rag assembly 2:

[0081] Case 1: When the scraping assembly 12 is in the second position and the rag assembly 2 is at the extreme upper position, the rag assembly 2 is in contact with the scraping assembly 12.

[0082] That is, when the rag component 2 rises to the extreme high position driven by the rag driving component 3, the scraping component 12 moves upward to the second position under the action of the lifting structure 13. At this time, the rag component 2 is still in contact with the scraping component 12.

[0083] For this, during the process of the rag component 2 rotating and rising in the reverse direction, through the lifting structure 13, it can be ensured that the scraping component 12 is always in contact with the rag component 2. Thus, during the process of the rag component 2 rotating and rising in the reverse direction and when the rag component 2 is at the extreme high position, the scraping component 12 can scrape the rag component 2.

[0084] Certainly, during the process of the rag component 2 rotating and rising in the reverse direction, the lifting structure 13 can also be controlled such that when the rag component 2 rotates to the extreme high position in the reverse direction, the lifting structure 13 is further controlled to lift the scraping component 12 to the second position.

[0085] Case 2: When the scraping component 12 is in the second position and the rag component 2 is at the extreme high position, the rag component 2 is not in contact with the scraping component 12.

[0086] If the distance between the extreme high position of the rag component 2 and the second position is relatively large, when the rag component 2 rotates and rises to the extreme high position in the reverse direction, the scraping component 12 is separated from the rag component 2, that is, the scraping component 12 cannot clean the rag component 2 when the rag component 2 is at the extreme high position.

[0087] In case 2, only when the scraping component 12 is in contact with the rag component 2 during the process of the rag component 2 rotating and rising in the reverse direction can the rag component 2 be cleaned. When the rag component 2 is at the extreme high position, reverse cleaning cannot be achieved. To avoid poor cleaning effect when the rag component 2 rotates in the reverse direction, the rag driving component 3 can be controlled to drive the rag component 2 to rise and fall repeatedly to achieve multiple bidirectional cleaning of the rag component 2.

[0088] The chassis device 1 provided in this embodiment can lift the scraping component 12 along the first direction through the lifting structure, and when the scraping component 12 is lifted upward, it can be in contact with the rag component 2 rotating in the reverse direction at least for some time periods. The limiting structure 14 is used to prevent the scraping component 12 from rotating relative to the chassis component 11, so as to achieve reverse cleaning of the rag component 2 when the rag component 2 rotates and rises in the reverse direction. And when the rag component 2 is in the forward rotation state, it is also in contact with the scraping component 12 at least for some time periods, thereby realizing bidirectional cleaning of the rag component 2, 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. In addition, only by actively rotating the rag component 2 forward and backward can bidirectional cleaning of the rag be achieved. The scraping component does not need to rotate, and there is no need to add an active motor to the scraping component, so the cost is relatively low.

[0089] In this embodiment, when the scraping and washing assembly 12 scrapes and washes the rotating rag assembly 2, water can be injected onto the rag assembly 2 to facilitate the scraping and washing 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.

[0090] See Figure 3 , generally, the rag assembly 2 includes a rag 21 and a rag support 22. The rag 21 is fixed on the rag support 22, and a support hole 221 is provided on the rag support 22.

[0091] Regarding injecting water onto the rag assembly 2 through the water supply device of the cleaning device, specifically, when the water supply device works, the clean water in the cleaning device can flow through the support hole 221 to the rag 21 to wet the rag 21. 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 21 to achieve cleaning when the rag assembly 2 rotates forward; 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 21 to achieve cleaning when the rag assembly 2 rotates backward. Regarding the support hole 221, in Figure 3 the example of , there are multiple support holes 221 and they are evenly spaced along the circumferential direction of the rag support 22.

[0092] 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 and washing assembly 12 is in the first position, the water spraying assembly can be started to wet the rag 21 to achieve cleaning when the rag assembly 2 rotates forward; when the rag assembly 2 is in the high position and the scraping and washing assembly 12 is in the second position, the water spraying assembly can be started to wet the rag 21 to achieve cleaning when the rag assembly 2 rotates backward.

[0093] Regarding the water spraying assembly, it also 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.

[0094] 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 backward and drives the scraping and washing 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 and washing 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.

[0095] In one embodiment, the lifting structure 13 is an elastic member, and the direction of elastic deformation of the lifting structure 13 is consistent with the moving direction of the scraping and washing assembly 12. In another embodiment, the lifting structure 13 is a linear drive mechanism.

[0096] As described above, the direction in which the scraping and washing assembly 12 is lifted is defined as the first direction. In the embodiment where the lifting structure 13 is an elastic member, the scraping and washing assembly 12 can be lifted from the first position to the second position along the first direction under the action of the elastic force. The scraping and washing assembly 12 can come into contact with the scraping and washing assembly 12 under the action of the elastic force of the lifting structure 13.

[0097] In one application, when the cleaning device is not stored in the cleaning base station, the scraping and washing assembly 12 is in the second position under the action of the elastic force of the lifting structure 13. When the cleaning device moves into the cleaning base station, the rag assembly 2 is located directly above the scraping and washing assembly 12. When the rag driving assembly 3 is started, the rag driving assembly 3 can drive the rag assembly 2 to rotate forward and drive the rag assembly 2 to move downward. The scraping and washing assembly 12 moves downward under the extrusion of the rag assembly 2, compressing the lifting structure 13 until the lifting structure 13 is compressed to the first position and the rag assembly 2 reaches the extreme low position; when the rag driving assembly 3 drives the rag assembly 2 to rotate in the reverse direction, for example, when the rag assembly 2 reverses at the extreme low position, the scraping and washing assembly 12 abuts against the rag assembly 2 under the action of the elastic force of the lifting structure 13 to achieve cleaning.

[0098] It can be understood that the driving assembly 3 can drive the rag assembly 2 to stop at any position between the extreme high position and the extreme low position, and can also rotate forward or reverse at any position. As long as the lifting structure 13 is in a compressed state, the scraping and washing assembly 12 can abut against the lifting structure 13 to achieve cleaning of the rag assembly 2. Of course, in the cleaning base station, a cleaning tray can be provided at the low position, and the cleaning tray contains cleaning liquid. When the rag assembly 2 is at the extreme low position, it is convenient to contact the cleaning liquid.

[0099] In an embodiment where the lifting structure 13 is an elastic component, the scraping and washing assembly 12 is in the second position under the action of the elastic force of the lifting structure 13. The second position can be the two cases described above. For example, when the scraping and washing assembly 12 is in the second position and the rag assembly 2 is at the extreme high position, the rag assembly 2 contacts the scraping and washing assembly 12. At this time, since the rag assembly 2 is at the extreme high position and still contacts the scraping and washing assembly 12, it has a certain impact on the cleaning device leaving the cleaning base station. However, the cleaning device can still overcome the resistance between the rag assembly 2 and the scraping and washing assembly 12 under the drive of the driving device and leave the cleaning base station. When the cleaning device returns to the cleaning base station, if the scraping and washing assembly 12 is at the extreme high position (the second position), it has a certain obstructive effect on the cleaning device entering the cleaning base station. However, the cleaning device can still overcome the resistance between the rag assembly 2 and the scraping and washing assembly 12 under the drive of the driving device and return to the cleaning base station.

[0100] When the lifting structure 13 is an elastic component, when the scraping and washing assembly 12 is in the first position, the greater the compression deformation amount of the lifting structure 13, when the rag assembly 2 is at the extreme low position and contacts the scraping and washing assembly 12, the elastic force exerted by the lifting structure 13 on the scraping and washing assembly 12 is the greatest; when the scraping and washing assembly 12 is in the second position, the compression deformation amount of the lifting structure 13 decreases. In an embodiment where the lifting structure 13 is an elastic component, a lifting structure 13 with a reasonable elastic coefficient can be selected, so that when the scraping and washing assembly 12 is in the second position and the rag assembly 2 is at the extreme high position and the two are in contact, the extrusion force of the lifting structure 13 on the rag assembly 2 can be minimized as much as possible to reduce the impact of the scraping and washing assembly 12 on the cleaning device when the cleaning device leaves and returns to the cleaning base station.

[0101] In an embodiment where the lifting structure 13 is an elastic component, when the scraping and washing assembly 12 is in the first position, there are the following two cases: one is that when the scraping and washing assembly 12 is in the first position, if the scraping and washing assembly 12 is continuously pressed downward, the scraping and washing assembly 12 can still move downward continuously; the other is that when the scraping and washing assembly 12 is in the first position, if the scraping and washing assembly 12 is continuously pressed downward, the scraping and washing assembly 12 cannot move downward continuously. For example, when the scraping and washing assembly 12 is in the first position, the scraping and washing assembly 12 abuts against the chassis assembly 11, so that the scraping and washing assembly 12 cannot move downward continuously.

[0102] Exemplarily, the elastic component can be a spring, an elastic rubber or an elastic buffer device prepared by using a spring.

[0103] By adopting an elastic component for the lifting structure 13, the scraping and washing assembly 12 can easily keep in contact with the rag assembly 2 during the rising and falling process of the rag assembly 2, realizing the two-way cleaning of the rag assembly 2, and the structure of the chassis device 1 is relatively simple and the cost is low.

[0104] In an embodiment where the lifting structure 13 is a linear drive mechanism, the lifting structure 13 actively drives the scrubbing assembly 12 to move in the first direction. For example, when the cleaning device is not stored in the cleaning base, the lifting structure 13 drives the scrubbing assembly 12 to move to the first position; when the cleaning device is stored in the cleaning base, the rag assembly 2 rotates forward and descends to the extreme lower position, and can contact the scrubbing assembly 12 at the extreme lower position to achieve cleaning. Of course, cleaning can also be performed during reverse rotation; when the rag drive assembly 3 drives the rag assembly 2 to rotate in the reverse direction, the lifting structure 13 can be controlled to rise with the rag assembly 2, so that the scrubbing assembly 12 cleans the cloth assembly 2 when the rag assembly 2 rotates in the reverse direction. It is also possible to control the lifting structure 13 not to act during the process of the rag assembly 2 rotating in the reverse direction and rising. When the rag assembly 2 reaches the extreme upper position, then control the lifting structure 13 to drive the scrubbing assembly 12 to rise to the second position, where the rag assembly 2 contacts the scrubbing assembly 12 to clean the rag assembly 2. After the cleaning of the rag assembly 2 is completed, control the lifting structure 13 to act, so that the lifting structure 13 drives the scrubbing assembly 12 to move to the first position. In this way, for the cleaning device to enter and leave the cleaning base, the scrubbing assembly 12 will not affect the rag assembly 2.

[0105] Exemplarily, the linear drive mechanism can be a linear motor or a hydraulic cylinder, etc.

[0106] In the embodiment where the lifting structure 13 is a linear drive mechanism, compared with the embodiment where the lifting structure 13 uses an elastic member, the motion state of the lifting structure 13 is decoupled from the motion state of the rag assembly 2, and the cleaning time and position of the scrubbing assembly 12 on the rag assembly 2 can be flexibly controlled.

[0107] In one embodiment, please refer to Figure 4 , which is an exploded view of the chassis assembly 11 and the scrubbing assembly 12 in the chassis device 1 provided by the embodiment of the present application. The scrubbing assembly 12 includes a scrubbing cylinder 121, and the chassis assembly 11 includes a base cylinder 113. The scrubbing cylinder 121 is inserted and connected to the base cylinder 113.

[0108] In this embodiment, the scrubbing assembly 12 is arranged on the chassis assembly 11 by inserting and connecting the scrubbing cylinder 121 to the base cylinder 113, with a simple structure, which simplifies the structure of the chassis device 1.

[0109] For the insertion and connection of the scrubbing cylinder 121 to the base cylinder 113, in one example, the scrubbing cylinder 121 is inserted into the base cylinder 113, and in another example, the base cylinder 113 is inserted into the scrubbing cylinder 121.

[0110] When the scraping and washing assembly 12 moves to the second position along the first direction, the base cylinder 113 and the scraping and washing cylinder 121 are still inserted into each other, that is, the scraping and washing assembly 12 does not disengage from the base cylinder 113. When the lifting structure 13 is an elastic member and when the wiping cloth assembly 2 moves to the extreme high position and the scraping and washing assembly 12 still abuts against the wiping cloth assembly 2, in order to avoid the situation where the scraping and washing cylinder 121 disengages from the base cylinder 113 when the cleaning device enters the cleaning base station, when the scraping and washing assembly 12 is in the second position, there needs to be a certain amount of insertion between the base cylinder 113 and the scraping and washing cylinder 121, that is, one of them needs to be inserted into the other with a certain depth.

[0111] Regarding the chassis assembly 11, in one example, please refer to Figure 5 , Figure 5 which is an exploded view of the chassis assembly 11 provided by the embodiment of the present application. 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, and an avoidance hole 114 is provided on the cleaning tray 112. The cleaning tray 112 is arranged on the chassis main body 111 and the base cylinder 113 passes through the avoidance hole 114.

[0112] 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 other than the chassis device 1), 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 so as to facilitate the cleaning of the wiping cloth assembly 2 by the scraping and washing assembly 12. Of course, a sewage discharge port is also provided on the cleaning tray 112. The specific shapes of the chassis main body 111 and the cleaning tray 112 are not limited in this embodiment.

[0113] 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.

[0114] For the scraping and washing assembly 12, in one example, please refer to Figure 6 , Figure 6 which is a schematic diagram of the scraping and washing assembly 12 provided by the embodiment of the present application. The scraping and washing assembly 12 further includes a scraping and washing structure 123 and a plurality of brackets 122. The plurality of brackets 122 are spaced apart along the circumferential direction of the scraping and washing cylinder 121 at one end of the scraping and washing cylinder 121 away from the chassis assembly 11, and a scraping and washing structure 123 is distributed on the side of each bracket 122 facing away from the chassis assembly 11.

[0115] 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. By providing multiple brackets 122, a better cleaning effect on the rag assembly 2 can be achieved. For example, the scrubbing assembly 12 includes three or four brackets 122, and the shape of the brackets 122 can be set as a long strip structure. Please refer to Figure 6 , which shows that the scrubbing assembly 12 includes three brackets 122, and the three brackets 122 are evenly spaced on the scrubbing cylinder 121.

[0116] Exemplarily, the bracket 122 and the scrubbing cylinder 121 are integrally formed; alternatively, the bracket 122 is detachably fixed to the scrubbing cylinder 121 through a connecting member.

[0117] 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 6 , which shows that the scrubbing structure 123 is a protrusion distributed on the bracket 122.

[0118] One end of the scrubbing cylinder 121 away from the chassis assembly 11 is the upper end face 124. Refer to Figure 6 , which shows the upper end face 124. 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 contacts the rag assembly 2.

[0119] When the rag assembly 2 rotates relative to the scrubbing assembly 12, the scrubbing structure 123 can effectively brush off the dirt adhered to the rag, reduce the amount of adhered dirt, and improve the cleaning efficiency of the rag.

[0120] In one example, two scrubbing assemblies 12 are provided on the chassis assembly 11, and each scrubbing assembly 12 is connected to a limiting structure 14. A lifting structure 13 is provided 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.

[0121] Please refer to Figures 7 - 9 , Figure 7 is a top view schematic diagram of the chassis device 1 in this embodiment; Figure 8 is Figure 7 the sectional view taken along the line A-A inFigure 9 is Figure 8 a partial enlarged view of part A in

[0122] Regarding the limiting structure 14, in one embodiment, please refer to Figure 8 and Figure 9 , a limiting structure 14 is formed between the scraping cylinder 121 and the base cylinder 113. The limiting structure 14 is used to guide the movement of the scraping assembly 12 relative to the chassis assembly 11. That is, when the scraping assembly 12 is lifted in a direction away from the chassis assembly 11, the limiting structure 14 can guide the movement of the chassis assembly 11. Similarly, when the scraping assembly 12 approaches the chassis assembly 11, the limiting structure 14 can guide the movement of the chassis assembly 11.

[0123] Since the limiting structure 14 is used to guide the movement of the scraping assembly 12 relative to the chassis assembly 11, it can prevent the scraping assembly 12 from rotating or tilting relative to the chassis assembly 11, and play a guiding role in lifting the scraping assembly 12 by the lifting structure 13 in the first direction.

[0124] In this embodiment, the scraping assembly 12 is arranged on the chassis assembly 11 by inserting and connecting the scraping cylinder 121 and the base cylinder 113, and the limiting structure 14 is formed between the scraping cylinder 121 and the base cylinder 113, rather than adding a limiting structure 14 for the scraping assembly 12 and the chassis assembly 11 at a position other than the scraping cylinder 121 and the base cylinder 113, which can simplify the structure of the chassis device 1.

[0125] In this embodiment, by forming a limiting structure 14 between the scraping cylinder 121 and the base cylinder 113, when the lifting structure 13 is an elastic device, the fixed connection between the lifting structure 13 and the scraping assembly 12 can be cancelled, preventing the force applied to the scraping assembly 12 when the wiping cloth assembly 2 rotates from indirectly acting on the lifting structure 13, which is beneficial to protecting the lifting structure 13 and improving the service life of the lifting structure 13.

[0126] Please refer to Figure 9 , in Figure 9 the example in, a step is formed on the inner circumferential surface of the scraping cylinder 121. The step of the scraping cylinder 121 can be called the scraping step 1213; a step is formed on the outer circumferential surface of the base cylinder 113. The step on the base cylinder 113 can be called the base step 1133. When the scraping cylinder 121 is in the first position, the scraping step 1213 on the inner circumferential surface of the scraping cylinder 121 is in contact with the base step 1133 on the outer circumferential surface of the base cylinder 113; or, the scraping step 1213 on the inner circumferential surface of the scraping cylinder 121 is not in contact with the base step 1133 on the outer circumferential surface of the base cylinder 113.

[0127] Based on the example where the scraping and washing assembly 12 includes a scraping and washing cylinder 121 and the chassis assembly 11 includes a base cylinder 113, regarding the position of the lifting structure 13, in one embodiment, please refer to Figure 9 , the lifting structure 13 is located inside the scraping and washing cylinder 121 and the base cylinder 113.

[0128] By locating the lifting structure 13 inside the scraping and washing cylinder 121 and the base cylinder 113, the lifting structure 13 can be protected, and the service life of the lifting structure 13 can be improved.

[0129] Please refer to Figure 9 and Figure 10 , Figure 9 which shows the scraping and washing cylinder 121 in the first position, Figure 10 and shows a schematic diagram of the scraping and washing cylinder 121 in the second position.

[0130] In contrast to locating the lifting structure 13 inside the scraping and washing cylinder 121 and the base cylinder 113, in one example, the lifting structure 13 is located outside the scraping and washing cylinder 121 and the base cylinder 113. For example, when the lifting structure 13 is an elastic member, the elastic member is disposed between the bracket 122 of the scraping and washing assembly 12 and the chassis assembly 11.

[0131] In the example where the lifting structure 13 is located inside the scraping and washing cylinder 121 and the base cylinder 113, if the lifting structure 13 is an elastic member, the specific position inside the scraping and washing cylinder 121 and the base cylinder 113 is as follows:

[0132] In one embodiment, a hole is formed in the top surface of the base cylinder 113, the scraping and washing cylinder 121 is inserted into the hole in the base cylinder 113, and the lifting structure 13 is located between the lower part of the scraping and washing cylinder 121 and the inner bottom surface of the base cylinder 113. At this time, the number of the lifting structures 13 is one or more.

[0133] In another embodiment, an opening is provided on the bottom surface of the scraping and washing cylinder 121, the base cylinder 113 is inserted into the opening in the scraping and washing cylinder 121, and the lifting structure 13 is located between the upper part of the base cylinder 113 and the inner bottom surface of the scraping and washing cylinder 121. At this time, the number of the lifting structures 13 is one or more.

[0134] In another embodiment, please refer to Figure 9, a base hole 1131 is provided on the base cylinder 113, a guide post 1132 is provided in the base hole 1131 and there is a gap between the guide post 1132 and the hole wall of the base hole 1131. A washing hole 1211 is provided on the washing cylinder 121, a positioning post 1212 is provided in the washing hole 1211 and there is a gap between the positioning post 1212 and the hole wall of the washing hole 1211. The guide post 1132 is inserted into the positioning post 1212; the lifting structure 13 is preferably a spring member, and the lifting structure 13 is sleeved outside the guide post 1132 and the positioning post 1212. By sleeving the lifting structure 13 on the guide post 1132 and the positioning post 1212, the position of the lifting structure 13 is positioned. In this embodiment, the base hole 1131 on the base cylinder 113 can be set as a through hole. At this time, the guide post 1132 in the base hole 1131 is connected to the chassis main body 111 or the cleaning tray 112. See Figure 9 , which shows that the guide post 1132 is connected to the chassis main body 111. Regarding the base hole 1131 on the base cylinder 113, in another embodiment, the base hole 1131 is a blind hole, and the base cylinder 113 includes a bottomed cylinder and a guide post 1132 extending upward from the bottom of the cylinder.

[0135] In another embodiment, different from Figure 9 the structure shown is that: there is no positioning post 1212 in the washing hole 1211, only a guide post 1132 is provided in the base hole 1131 of the base cylinder 113, the lifting structure 13 is sleeved on the guide post 1132, and by sleeving the lifting structure 13 on the guide post 1132, the position of the lifting structure 13 is positioned.

[0136] In another embodiment, different from Figure 9 the structure shown is that: there is no guide post 1132 in the base hole 1131, only a positioning post 1212 is provided in the washing hole 1211 of the washing cylinder 121, the lifting structure 13 is sleeved on the guide post 1132, and by sleeving the lifting structure 13 on the positioning post 1212, the position of the lifting structure 13 is positioned.

[0137] In the example where the lifting structure 13 is a spring member, in one embodiment, the two ends of the lifting structure 13 are respectively connected to the base cylinder 113 and the washing cylinder 121. Or, in another embodiment, neither end of the lifting structure 13 is connected to the base cylinder 113 and the washing cylinder 121. Or, in another embodiment, one end of the lifting structure 13 is connected to the base cylinder 113 or the washing cylinder 121.

[0138] Regarding the insertion of the guide post 1132 into the positioning post 1212, in one example, the guide post 1132 is inserted into the positioning post 1212; in another example, the positioning post 1212 is inserted into the guide post 1132. Please see Figure 9, shows the guide post 1132 guiding into the positioning post 1212.

[0139] As mentioned above, a limiting structure 14 is formed between the scraping cylinder 121 and the base cylinder 113. In one embodiment, the limiting structure 14 is formed between the outer circumferential side wall of the base cylinder 113 and the inner side wall of the scraping cylinder 121; in another embodiment, the limiting structure 14 is formed between the outer circumferential side wall of the scraping cylinder 121 and the inner side wall of the base cylinder 113. Please refer to Figure 9 , shows the base cylinder 113 inserted into the scraping cylinder 121, that is, a limiting structure 14 can be formed between the outer circumferential side wall of the base cylinder 113 and the inner side wall of the scraping cylinder 121.

[0140] In the following scenario, that is, when the scraping assembly 12 is in the first position, if the scraping assembly 12 is further pressed downward, the scraping assembly 12 cannot move downward continuously. Combining Figure 9 , it can be set that when the scraping assembly 12 is in the first position, the lower end of the scraping cylinder 121 contacts the chassis assembly 11 to limit the scraping assembly 12 so that it cannot move downward continuously; or, it can be set that when the scraping assembly 12 is in the first position, the guide post 1132 abuts against the scraping cylinder 121 to limit the scraping assembly 12 so that it cannot move downward continuously; or, please refer to Figure 9 , it can be set that when the scraping assembly 12 is in the first position, the scraping step 1213 on the inner circumferential surface of the scraping cylinder 121 contacts the base step 1133 on the outer circumferential surface of the base cylinder 113 to limit the scraping assembly 12 so that it cannot move downward continuously.

[0141] Based on the embodiment in which the guide post 1132 is arranged in the base cylinder 113 and the positioning post 1212 is arranged in the scraping hole 1211, in one embodiment, a limiting structure 14 is formed between the guide post 1132 and the positioning post 1212. When the limiting structure 14 is arranged between the guide post 1132 and the positioning post 1212, it is not necessary to arrange the limiting structure 14 between the outer circumferential side wall of the base cylinder 113 and the inner side wall of the scraping cylinder 121 or between the outer circumferential side wall of the scraping cylinder 121 and the inner side wall of the base cylinder 113.

[0142] Figure 11 Schematic diagram of the chassis main body 111 provided by the embodiment of the present application; Figure 12 is Figure 11 The partial enlarged view at B in Figure 13 Schematic diagram of the scraping assembly provided by the embodiment of the present application.

[0143] Regarding the limiting structure 14, in one embodiment, refer to Figure 12 and Figure 13, the limiting structure 14 includes a guiding groove 141 and a limiting rib 142. The limiting rib 142 is located in the guiding groove 141, and the length extension direction of the guiding groove 141 is along the first direction.

[0144] The limiting structure 14 adopts a matching structure of the guiding groove 141 and the limiting rib 142. While realizing the movement of the guiding and scraping assembly 12 along the first direction, the structure of the limiting structure 14 is simple and convenient for processing.

[0145] In a specific example, please refer to Figure 12 , a limiting rib 142 is provided on the outer circumferential side surface of the base cylinder 113. Please refer to Figure 13 , a guiding groove 141 is provided on the inner side surface of the scraping cylinder 121 to guide the scraping cylinder 121 to move along the first direction. In a specific example, a guiding groove 141 can be provided on the outer circumferential side surface of the base cylinder 113, and a limiting rib 142 can be provided on the inner side surface of the scraping cylinder 121 to guide the scraping cylinder 121 to move along the first direction.

[0146] Regarding the number of the limiting ribs 142, in a specific example, the number of the limiting ribs 142 is set to one; please refer to Figure 12 , in another specific example, the number of the limiting ribs 142 is multiple. The multiple limiting ribs 142 are spaced apart along the circumferential direction of the base cylinder 113. At the same time, please refer to Figure 13 , a plurality of guiding grooves 141 are provided on the inner side surface of the scraping cylinder 121. The number of the guiding grooves 141 is the same as the number of the limiting ribs 142, and the guiding grooves 141 correspond to the limiting ribs 142 one by one. By setting the number of the limiting ribs 142 to be multiple, it is convenient for the limiting structure 14 to stably guide the scraping assembly 12 to move along the first direction. Preferably, the multiple limiting ribs 142 are evenly spaced apart along the circumferential direction of the base cylinder 113 on the base cylinder 113.

[0147] In the example where a guiding post 1132 is provided inside the base cylinder 113 and a positioning post 1212 is provided inside the scraping hole 1211, a matching structure of the guiding groove 141 and the limiting rib 142 can also be provided between the guiding post 1132 and the positioning post 1212.

[0148] Please refer to Figure 12 , in a specific example, both ends of the limiting rib 142 extend to both ends of the base cylinder 113 along the first direction (the first direction is parallel to the axial direction of the base cylinder 113).

[0149] Regarding the limiting structure 14, in another embodiment, the guiding along the first direction is achieved through the limiting shape. Specifically, for example, the cross-sectional shape of the base cylinder 113 is a regular polygon. The base cylinder 113 is inserted into the scrubbing cylinder 121. The inner side surface of the scrubbing cylinder 121 is matched with the circumferential side surface of the outer periphery of the base cylinder 113. The cross-sectional shape of the inner side surface of the scrubbing cylinder 121 is also a regular polygon to guide the scrubbing cylinder 121 to move along the first direction. Of course, in the example where the guiding column 1132 is arranged inside the base cylinder 113 and the positioning column 1212 is arranged inside the scrubbing hole 1211, the limiting structure 14 can also be formed between the guiding column 1132 and the positioning column 1212 through the limiting shape.

[0150] This embodiment provides a cleaning base station, including the chassis device 1 provided in any of the above embodiments.

[0151] 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 idle cleaning device, supply power for the cleaning device to charge, and clean the rag of the cleaning device through the chassis device 1.

[0152] This embodiment provides a cleaning system, including a cleaning device and the cleaning base station provided in the above embodiment; 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, and the rag driving assembly 3 is used to drive the rag assembly 2 to move along the first direction.

[0153] The cleaning device can be a floor washer, a sweeping robot, a mopping and sweeping robot, etc., and the embodiments of the present application do not make limitations.

[0154] When the rag driving assembly 3 operates, it can drive the rag assembly 2 to move along the first direction. When using the cleaning device to clean the ground, the rag driving assembly 3 drives the rag assembly 2 to rotate forward and drives the rag assembly 2 to descend. After descending to a certain distance to the extreme low position, the rag assembly 2 only rotates forward without descending. At this time, the rag assembly 2 is in contact with the ground. When the cleaning device moves, the ground can be cleaned through the rag assembly 2. When cleaning is not required, the rag driving assembly 3 drives the rag assembly 2 to rotate backward, and at the same time the rag assembly 2 ascends. After ascending to a certain distance to the extreme high position, even if the rag assembly 2 rotates backward, it will not continue to ascend, realizing that the rag assembly 2 is lifted off the ground.

[0155] When the cleaning device moves into the cleaning base station and needs to clean the rag assembly 2, the rag driving assembly 3 is started. The rag driving assembly 3 can drive the rag assembly 2 to rotate forward and drive the rag assembly 2 to move downward. When the rag assembly 2 descends to the lowest limit position, at this time, the scraping assembly 12 is also in the first position. Continue to drive the rag driving assembly 3 to drive the rag assembly 2 to rotate forward. Since the scraping assembly 12 does not rotate under the limitation of the limiting structure 14, the forward rotation of the rag assembly 2 relative to the scraping assembly 12 enables the scraping assembly 12 to scrape the rag assembly 2; when the rag driving assembly 3 drives the rag assembly 2 to rotate backward and rise, since the lifting structure 13 of the cleaning base station can drive the scraping assembly 12 to lift along the first direction, so that the rag assembly 2 remains in contact with the scraping assembly 12 during at least part of the period of the reverse rotation state, realizing the cleaning of the rag assembly 2 by the scraping assembly 12 when the rag assembly 2 rotates backward.

[0156] The cleaning system provided in this embodiment can realize the two-way cleaning of the rag assembly 2, improve the cleaning efficiency and cleaning effect of the rag, so as to effectively avoid affecting the cleaning effect of the cleaning device on the surface to be cleaned such as the ground due to the poor cleanliness of the rag, thereby improving the user experience.

[0157] Please refer to Figures 14 - 17 , Figure 14 It is a cross-sectional view schematic diagram of the chassis device 1, the rag assembly 2 and the rag driving assembly 3 provided in the embodiment of the present application; Figure 15 is Figure 14 The partial enlarged view at C in Figure 16 It is a schematic diagram of the rag driving assembly 3 provided in the embodiment of the present application; Figure 17 It is an internal schematic diagram of the rag driving assembly 3 provided in the embodiment of the present application.

[0158] Regarding the rag driving assembly 3, in one embodiment, please refer to Figures 14 - 17 , the rag driving assembly 3 includes a housing 31, a driving motor 32, an intermediate transmission structure 33, a first connecting member 34 and a second connecting member 35. 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. The first connecting member 34 is threadedly connected to the second connecting member 35. The first connecting member 34 is connected to the rag assembly 2.

[0159] In a specific example, please refer to Figure 17 , the 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. The second gear 334 is meshed with the first gear 333.

[0160] See also Figure 15 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, it drives the first connecting member 34 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 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 is fixedly connected to the first connecting member 34. A threaded groove 342 is formed on the first connecting member 34, and a threaded protrusion is provided on the inner side surface of the cylindrical second connecting member 35 (the threaded protrusion is not in the inner side surface). Figure 15 ), the threaded protrusion cooperates with the threaded groove 342, and the threaded protrusion and the threaded groove 342 form a threaded connection.

[0161] See also Figure 15 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.

[0162] See also Figure 15 A limiting member 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 member 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 figure Figure 15 In the illustrated position, the threaded protrusion on the second connecting member 35 abuts against the end of the threaded groove 342, so that the first connecting member 34 drives the second connecting member 35 to rotate in the opposite direction, and the first connecting member 34 does not continue to move upward.

[0163] The above gives a specific embodiment of the rag driving component 3, but the structure of the rag driving component 3 is not limited to the content of the above specific embodiment.

[0164] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A chassis device, characterized in that, It includes a chassis assembly (11), a scrubbing assembly (12), a lifting structure (13) and a limiting structure (14); the scrubbing assembly (12) is used to clean a rag assembly (2) that can perform lifting movement and can rotate forward and backward. The limiting structure (14) is connected to the scrubbing assembly (12) and is used to limit the rotation of the scrubbing assembly (12) relative to the chassis assembly (11). The lifting structure (13) is arranged between the chassis assembly (11) and the scrubbing assembly (12), and the lifting structure (13) is at least used to drive the scrubbing assembly (12) to lift away from the chassis assembly (11), so that the rag assembly (2) can be in contact with the scrubbing assembly (12) during at least part of the forward and reverse rotation states.

2. The chassis device according to claim 1, wherein, The scrubbing assembly (12) includes a scrubbing cylinder (121), the chassis assembly (11) includes a base cylinder (113), the scrubbing cylinder (121) is inserted and connected to the base cylinder (113), and the scrubbing cylinder (121) can move up and down relative to the base cylinder (113).

3. The chassis device according to claim 2, characterized in that, A limiting structure (14) is formed between the scrubbing cylinder (121) and the base cylinder (113), and the limiting structure (14) is used to guide the movement of the scrubbing assembly (12) relative to the chassis assembly (11).

4. The chassis device according to claim 2, characterized in that, A base hole (1131) is provided on the base cylinder (113), a scrubbing hole (1211) is provided on the scrubbing cylinder (121), the base cylinder (113) is inserted into the scrubbing hole (1211), and the lifting structure (13) is located in the base hole (1131).

5. The chassis device according to claim 4, characterized in that, A guide post (1132) is provided in the base hole (1131) and there is a gap between the guide post (1132) and the hole wall of the base hole (1131), a positioning post (1212) is provided in the scrubbing hole (1211) and there is a gap between the positioning post (1212) and the hole wall of the scrubbing hole (1211), and the guide post (1132) is inserted into the positioning post (1212); the lifting structure (13) is sleeved outside the guide post (1132) and the positioning post (1212).

6. The chassis device according to any one of claims 1-5, characterized in that, The lifting structure (13) is an elastic member, and the direction of elastic deformation of the lifting structure (13) is consistent with the moving direction of the scrubbing assembly (12).

7. The chassis device according to any one of claims 3-5, characterized in that The limiting structure (14) includes a guide groove (141) and a limiting rib (142), the limiting rib (142) is located in the guide groove (141), one of the guide groove (141) and the limiting rib (142) is provided on the scrubbing cylinder (121) and the other is provided on the base cylinder (113), and the length extension direction of the guide groove (141) is along the lifting direction of the scrubbing assembly (12).

8. The chassis device according to claim 7, characterized in that, The limiting ribs (142) are multiple, and the multiple limiting ribs (142) are distributed on the base cylinder (113) at intervals along the circumferential direction of the base cylinder (113); the guiding grooves (141) are multiple, and the guiding grooves (141) correspond to the limiting ribs (142) one by one.

9. The chassis device according to any one of claims 2-5, characterized in that, The chassis assembly (11) includes a chassis main body (111) and a cleaning tray (112). The base cylinder (113) is provided on the chassis main body (111). An avoidance hole (114) is provided on the cleaning tray (112). The cleaning tray (112) is arranged on the chassis main body (111) and the base cylinder (113) passes through the avoidance hole (114).

10. The chassis device according to any one of claims 2-5, characterized in that, The scrubbing assembly (12) further includes a scrubbing structure (123) and multiple brackets (122). The multiple brackets (122) are distributed on the end of the scrubbing cylinder (121) away from the chassis assembly (11) at intervals along the circumferential direction of the scrubbing cylinder (121). The scrubbing structure (123) is distributed on the side of each bracket (122) facing away from the chassis assembly (11).

11. The chassis device according to claim 1, characterized in that, The lifting structure (13) is a linear drive mechanism.

12. A cleaning base station, characterized in that, It includes the chassis device (1) according to any one of claims 1-11.

13. A cleaning system, characterized in that, It includes a cleaning device and the cleaning base station according to claim 12; the cleaning device includes a rag assembly (2) and a rag drive assembly (3). The rag drive assembly (3) is connected to the rag assembly (2), and the rag drive assembly (3) is used to drive the rag assembly (2) to move.

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