Floor brush assembly, cleaning equipment and cleaning system

Abstract

The utility model provides a floor brush assembly, cleaning equipment and a cleaning system, and relates to the technical field of cleaning. The floor brush assembly comprises a floor brush body, a rotating assembly and a rolling brush assembly. The rotating assembly is arranged on the floor brush body. The rotating assembly is connected with the floor brush body and the machine body and enables the floor brush body to tilt in at least two directions relative to the machine body. The rolling brush assembly is arranged on the floor brush body and makes contact with the to-be-cleaned face, and only the rolling brush assembly makes contact with the to-be-cleaned face. The rolling brush assembly comprises a first rolling brush and a second rolling brush which are arranged in parallel in the advancing direction of the floor brush body, and a negative pressure cavity is formed between the first rolling brush and the second rolling brush. The value range of the ratio of the shaft distance between the first rolling brush and the second rolling brush to the diameter of the first rolling brush is 0.9-1.5, and / or the value range of the ratio of the shaft distance between the first rolling brush and the second rolling brush to the diameter of the second rolling brush is 0.9-1.5. According to the floor brush assembly, the problem that the cleaning effect is poor due to the fact that the floor brush assembly is not flexible in steering can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning, in particular to a floor brush assembly, a cleaning device and a cleaning system. BACKGROUND

[0002] The cleaning device, for example, a scrubber, is a cleaning machine suitable for cleaning the floor, carpet and other surfaces to be cleaned, simultaneously absorbing and removing the sewage from the site, and has the advantages of environmental protection, energy saving and high efficiency. The roll brush is one of the key components of the scrubber, which mainly cleans the surface to be cleaned through mechanical rotation and friction.

[0003] The scrubber can be divided into a single roll brush structure and a double roll brush structure according to the roll brush. The scrubber with a double roll brush structure includes two parallel roll brushes. The movement of the two roll brushes can increase the contact area with the surface to be cleaned, which is beneficial to improve the cleaning efficiency.

[0004] In the related art, the scrubber with a double roll brush structure is limited by the power wheel, the size of the floor brush and the shaft, and the scrubber is not flexible in turning during the cleaning process. Therefore, it is difficult to clean small spaces such as corners, narrow gaps, bed bottoms and around columns, and the cleaning effect is not good. CONTENT OF THE INVENTION

[0005] The present application provides a floor brush assembly, a cleaning device and a cleaning system, which can solve the problem of inflexible turning of the cleaning device and poor cleaning effect in small spaces.

[0006] In a first aspect, the present application provides a floor brush assembly, comprising:

[0007] a floor brush body;

[0008] a rotating assembly, the rotating assembly is arranged on the floor brush body, the rotating assembly connects the floor brush body and a machine body, and the rotating assembly enables the floor brush body to tilt at least in two directions relative to the machine body;

[0009] a roll brush assembly, the roll brush assembly is arranged on the floor brush body, the roll brush assembly is used to contact the surface to be cleaned, and only the roll brush assembly contacts the surface to be cleaned; the roll brush assembly includes a first roll brush and a second roll brush, the first roll brush and the second roll brush are arranged in parallel along the direction of travel of the floor brush body, and a negative pressure cavity is formed between the first roll brush and the second roll brush;

[0010] The ratio of the axial distance between the first roll brush and the second roll brush to the diameter of the first roll brush is in the range of 0.9-1.5, and / or the ratio of the axial distance between the first roll brush and the second roll brush to the diameter of the second roll brush is in the range of 0.9-1.5.

[0011] The floor brush assembly provided in the application can be tilted relative to the machine body, and the roller brush assembly is arranged on the floor brush body, so that the floor brush assembly as a whole can be tilted relative to the machine body. In addition, the floor brush assembly is in contact with the surface to be cleaned to clean the surface to be cleaned. Therefore, it is easy to understand that the larger the size of the floor brush assembly, the larger the area corresponding to the floor brush assembly and the surface to be cleaned, and the greater the movement resistance of the floor brush body during tilting relative to the machine body. On the contrary, the smaller the size of the floor brush assembly, the smaller the area corresponding to the floor brush assembly and the surface to be cleaned, and the higher the flexibility of the floor brush assembly during tilting, and the smaller the resistance of the floor brush assembly during tilting, which is more conducive to achieving the cleaning effect of small spaces.

[0012] Since only the roller brush assembly in the floor brush assembly is in contact with the surface to be cleaned, no structure such as a booster wheel or a supporting wheel in contact with the surface to be cleaned is arranged in the floor brush assembly, so that the floor brush assembly is not prone to size increase due to the arrangement of the booster wheel or the supporting wheel structure, and the floor brush assembly is not prone to resistance increase during tilting due to the arrangement of the booster wheel or the supporting wheel structure, which is conducive to improving the movement flexibility of the floor brush assembly.

[0013] The size of the first roller brush and the second roller brush and the positional relationship between the first roller brush and the second roller brush can affect the overall size of the floor brush assembly. Therefore, the size of the first roller brush and the second roller brush and the positional relationship between the first roller brush and the second roller brush can affect the flexibility of the movement of the floor brush body relative to the machine body.

[0014] In the embodiments of the application, by setting the ratio between the wheelbase of the first roller brush and the second roller brush and the diameter of the first roller brush to be 0.9-1.5, and / or the ratio between the wheelbase of the first roller brush and the second roller brush and the diameter of the second roller brush to be 0.9-1.5, a smaller distance between the first roller brush and the second roller brush can be achieved, and even the bristles of the first roller brush and the second roller brush can have a certain amount of interference, so that the structure arrangement of the first roller brush and the second roller brush is relatively compact. Therefore, the first roller brush and the second roller brush occupy less space of the floor brush assembly, which can reduce the overall size of the floor brush assembly and the area corresponding to the floor brush assembly and the surface to be cleaned.

[0015] It is easy to understand that the more compact the structure of the floor brush assembly along the advancing direction of the floor brush body, the more flexible the tilting movement of the floor brush assembly when the floor brush assembly touches an obstacle, and the smaller the tilting force applied by the user to the floor brush assembly. Especially when cleaning small spaces such as corners, narrow gaps, bed bottoms, and around columns, the floor brush body can move flexibly relative to the machine body to adjust the movement direction of the floor brush body and clean the dead corners in the small space, thereby improving the cleaning effect of the small space.

[0016] Specifically, the cleaning process is described by taking the cleaning of the surface to be cleaned at the corner of a wall by the brush assembly as an example. For example, along the advancing direction of the brush main body, the first roller brush is arranged in front of the second roller brush. The axis of the first roller brush is parallel to the front obstacle wall. When the brush assembly advances to the wall, the first roller brush is in contact with the wall. Since the first roller brush and the second roller brush are columnar structures, a large sanitary dead angle is easily generated between the first roller brush and the wall. At this time, the brush assembly of the embodiment of the present application can realize flexible tilting of the brush assembly relative to the machine body. The direction of the brush main body can be tilted so that the axial direction of the first roller brush can intersect (for example, be perpendicular to) the wall, thereby reducing or eliminating the sanitary dead angle between the first roller brush and the wall. Then, the brush assembly can continue to be driven to advance along the edge of the wall, and the first roller brush and the second roller brush can clean the surface to be cleaned at the corner of the wall.

[0017] Therefore, in the embodiment of the present application, when the brush main body advances to clean the surface to be cleaned, the brush main body can flexibly move relative to the machine body when encountering an obstacle such as a wall, and the brush assembly can be turned to adjust the cleaning direction of the roller brush assembly, thereby cleaning the surface to be cleaned near the obstacle in multiple directions, which is beneficial to reduce the area of the sanitary dead angle and improve the cleaning effect in small spaces.

[0018] In addition, in the embodiment of the present application, no booster wheels or support wheels or the like are arranged, and the weight of the brush assembly and the machine body can all act on the brush assembly, which is beneficial to increase the acting force between the brush assembly and the surface to be cleaned, thereby increasing the frictional force between the first roller brush and the second roller brush and the surface to be cleaned when cleaning the surface to be cleaned, which is beneficial to improve the cleaning effect on the surface to be cleaned.

[0019] In the embodiment of the present application, the rotating assembly can make the brush main body tilt relative to the machine body in at least two directions. The two directions can be the front-rear direction and the left-right direction of the brush main body. The front-rear direction can be the advancing direction of the brush main body. The brush main body can tilt relative to the machine body towards the advancing direction of the brush main body. The advancing direction can include the forward direction and the backward direction. The left-right direction can be relative to the advancing direction. For example, the left-right direction can be the axial direction of the first roller brush. The left-right direction can intersect the advancing direction. Relative to the advancing direction of the brush main body, the brush main body can tilt relative to the machine body towards the left side and the right side. Therefore, the rotating assembly can more effectively improve the tilting flexibility of the brush main body relative to the machine body.

[0020] According to an embodiment of the present application, along the advancing direction of the brush main body, the size of the outer contour of the brush main body is smaller than the distance between the most distant ends of the first roller brush and the second roller brush.

[0021] It should be noted that the distance d between the farthest ends of the first roller brush and the second roller brush refers to the maximum dimension of the outer contour of the first roller brush and the outer contour of the second roller brush in the direction of travel of the floor brush body.

[0022] In the embodiment of the present application, the distance d between the farthest ends of the first roller brush and the second roller brush can meet the corresponding contact areas of the first roller brush and the second roller brush on the surface to be cleaned, so as to ensure the cleaning efficiency of the double roller brush structure formed by the first roller brush and the second roller brush on the surface to be cleaned. By setting the size of the outer contour of the floor brush body in the direction of travel to be smaller than the distance d between the farthest ends of the first roller brush and the second roller brush in the direction of travel of the floor brush body, the size of the floor brush body can be made smaller under the condition of ensuring the cleaning efficiency, so that the structure of the floor brush assembly can be more compact, and the flexibility of the floor brush body relative to the body can be improved.

[0023] In addition, the first roller brush and the second roller brush have relatively soft bristles. By setting the size of the outer contour of the floor brush body in the direction of travel to be smaller than the distance d between the farthest ends of the first roller brush and the second roller brush, when the floor brush assembly touches an obstacle such as a wall, the relatively soft first roller brush or the second roller brush can first contact the obstacle, so that the possibility of hard collision between the floor brush body and the obstacle, which can cause wear of the floor brush body, can be reduced, and the floor brush body can be protected.

[0024] According to an embodiment of the present application, the vertical projection of the outer contour of the floor brush body in the direction of travel of the floor brush body is located inside the vertical projection of the outer contour of the first roller brush and the second roller brush.

[0025] It should be noted that the vertical direction of the embodiment of the present application is a direction perpendicular to the surface to be cleaned. In other words, when the floor brush assembly cleans the surface to be cleaned, the vertical direction refers to a direction perpendicular to the surface to be cleaned.

[0026] In the embodiment of the present application, by setting the vertical projection of the outer contour of the floor brush body in the direction of travel of the floor brush body to be within the vertical projection of the outer contour of the first roller brush and the second roller brush, the floor brush body can have a smaller size in the direction of travel. The floor brush body does not occupy a large space of the floor brush assembly in the direction of travel, so that the structure of the floor brush assembly can be compact, and the flexibility of the floor brush assembly during movement can be improved.

[0027] According to an embodiment of the present application, at least part of the first roller brush is exposed to the floor brush body in the direction of travel of the floor brush body; at least part of the second roller brush is exposed to the floor brush body in the direction of travel of the floor brush body.

[0028] In the embodiments of the present application, when the first roller brush is located in front of the second roller brush in the advancing direction of the mop main body, at least part of the first roller brush is exposed to the outside of the mop main body, so that the first roller brush can contact the wall first when the mop main body runs to the corner of the wall. The first roller brush can be used to clean the skirting board below the wall.

[0029] Similarly, when the second roller brush is located in front of the first roller brush in the advancing direction of the mop main body, at least part of the second roller brush is exposed to the outside of the mop main body, so that the second roller brush can contact the wall first when the mop main body runs to the corner of the wall. The second roller brush can be used to clean the skirting board below the wall.

[0030] Specifically, taking the first roller brush as an example, when the first roller brush moves to the corner of the wall, the dust and other debris on the skirting board can be rolled out by the rotation of the first roller brush and sucked into the cleaning device through the negative pressure cavity, thereby achieving the cleaning of the skirting board.

[0031] Therefore, the first roller brush and the second roller brush can be used to clean the skirting board, and the user no longer needs to squat to manually clean the skirting board, which is beneficial to enrich the cleaning function of the cleaning device and improve the user experience.

[0032] In some examples, the mop main body is located above the first roller brush and the second roller brush. At least half of the outer circumferential surface of the first roller brush can be exposed to the outside of the mop main body. At least half of the outer circumferential surface of the second roller brush can be exposed to the outside of the mop main body. Therefore, through the part of the first roller brush and the second roller brush exposed to the mop main body, the user can observe the dirt condition of the first roller brush and the second roller brush in real time. When the first roller brush and the second roller brush are seriously dirty, the user can clean the first roller brush and the second roller brush in time, thereby reducing the possibility of secondary pollution of the surface to be cleaned caused by using the first roller brush and the second roller brush with a large degree of dirt.

[0033] According to an embodiment of the present application, the first roller brush and the second roller brush rotate in opposite directions, and at least part of the first roller brush and the second roller brush overlap each other.

[0034] In the embodiments of the present application, the first roller brush and the second roller brush have relatively soft bristles. When at least a part of the first roller brush and the second roller brush overlap each other, due to the reverse rotation of the first roller brush and the second roller brush, the overlapping part of the first roller brush and the second roller brush does not affect the rotation of the first roller brush and the second roller brush. Moreover, due to the overlapping part of the first roller brush and the second roller brush, the distance d between the farthest ends of the first roller brush and the second roller brush in the advancing direction of the brush body can be reduced. At this time, the distance d is smaller than the sum of the diameter of the first roller brush and the diameter of the second roller brush. In addition, when the size of the outer contour of the brush body in the advancing direction is smaller than the distance d between the farthest ends of the first roller brush and the second roller brush, the size of the brush body in the advancing direction can also be reduced, so that the structure of the brush assembly in the advancing direction can be more compact, and the flexibility of the movement of the brush assembly can be improved, and the cleaning effect on small spaces can be improved.

[0035] By the reverse rotation of the first roller brush and the second roller brush, the first roller brush and the second roller brush can roll the dirt on the outer periphery of the brush assembly into the to-be-cleaned surface between the first roller brush and the second roller brush. Since the negative pressure cavity is formed between the first roller brush and the second roller brush, the negative pressure environment in the negative pressure cavity can suck the dirt between the first roller brush and the second roller brush into the cleaning device.

[0036] In addition, by the overlapping of at least a part of the first roller brush and the second roller brush, the area of the negative pressure cavity formed by the first roller brush and the second roller brush corresponding to the to-be-cleaned surface can be reduced, which is beneficial to improve the suction force on the to-be-cleaned surface, thereby improving the suction effect on the dirt.

[0037] According to an embodiment of the present application, the ratio between the distance between the axes of the first roller brush and the second roller brush and the diameter of the first roller brush is in the range of 1.1-1.3.

[0038] The ratio between the distance between the axes of the first roller brush and the second roller brush and the diameter of the second roller brush is in the range of 1.1-1.3.

[0039] It is easy to understand that the increase of the distance between the axes of the first roller brush and the second roller brush can increase the area corresponding to the to-be-cleaned surface of the brush assembly, which is beneficial to improve the cleaning efficiency. However, the increase of the distance between the axes of the first roller brush and the second roller brush will also cause the size of the brush assembly in the advancing direction to increase, thereby affecting the flexibility of the movement of the brush assembly. Especially when the brush assembly cleans small spaces, the movement of the brush assembly is limited, which is easy to cause poor cleaning effect.

[0040] Therefore, in the embodiments of the present application, by setting the ratio between the axial distance of the first and second rolling brushes and the diameter of the first rolling brush to be 1.1-1.3 and the ratio between the axial distance of the first and second rolling brushes and the diameter of the second rolling brush to be 1.1-1.3, the corresponding areas of the first and second rolling brushes and the surface to be cleaned can be met to ensure the cleaning efficiency, and the structure of the first and second rolling brushes is more compact, so that the overall structure of the floor brush assembly in the traveling direction is compact, which is beneficial to improve the flexibility of the movement of the floor brush assembly and improve the cleaning effect in small spaces.

[0041] According to an embodiment of the present application, the axial distance of the first and second rolling brushes is between 55mm and 82mm.

[0042] In the embodiments of the present application, by setting the axial distance of the first and second rolling brushes to be between 55mm and 82mm, the contact area between the floor brush assembly and the surface to be cleaned in the traveling direction of the floor brush body can be met, so that the floor brush assembly can have a higher cleaning efficiency. Moreover, by setting the axial distance of the first and second rolling brushes to be between 55mm and 82mm, the size of the farthest distance d between the first and second rolling brushes in the traveling direction of the floor brush body can be limited. The size of the farthest distance d between the first and second rolling brushes in the traveling direction of the floor brush body is not too large, so that the size of the floor brush body in the traveling direction is also not too large, so that the overall structure of the floor brush assembly is relatively compact.

[0043] According to an embodiment of the present application, a containing space is formed between the first and second rolling brushes and the bottom wall of the floor brush body.

[0044] Further comprising a water scraper, which is arranged on the floor brush body and located in the containing space. One side of the water scraper corresponds to the first rolling brush, and the other side of the water scraper corresponds to the second rolling brush.

[0045] In the embodiments of the present application, the water scraper can be used to scrape off the water and dirt remaining on the first and second rolling brushes, so as to ensure the cleaning state of the first and second rolling brushes when contacting the surface to be cleaned, and avoid the phenomenon that the surface to be cleaned becomes dirtier after cleaning.

[0046] In the embodiments of the present application, the first and second rolling brushes can share the same water scraper, so as to save the space between the first and second rolling brushes and improve the compactness of the structure of the floor brush assembly.

[0047] In some examples, the first and second rolling brushes can be fixed to one side of the mop body facing the surface to be cleaned. Since the first and second rolling brushes are columnar structures, a receiving space can be formed between the first and second rolling brushes and the mop body. The receiving space can be used to arrange the wiper. In other words, the wiper can make reasonable use of the receiving space, so that the wiper does not easily occupy additional space on the mop assembly, and the compactness of the structure of the mop assembly is improved.

[0048] In some examples, the wiper can include first and second wiper portions opposite to each other. The first wiper portion can correspond to the first rolling brush. The second wiper portion can correspond to the second rolling brush.

[0049] The first wiper portion can extend along the axial direction of the first rolling brush. The first wiper portion can be in a state of close contact with the first rolling brush to sufficiently wipe off water and dirt on the first rolling brush. The second wiper portion can extend along the axial direction of the second rolling brush. The second wiper portion can be in a state of close contact with the second rolling brush to sufficiently wipe off water and dirt on the second rolling brush.

[0050] According to an embodiment of the present application, the mop body further includes a suction port located above the first and second rolling brushes and between the two sides of the wiper.

[0051] In the embodiment of the present application, the suction port can be used to suck dirt on the surface to be cleaned into the cleaning device. The suction port is in communication with the negative pressure cavity. Since the first wiper portion of the wiper corresponds to the first rolling brush and the second wiper portion of the wiper corresponds to the second rolling brush, the suction port can be located between the first and second wiper portions, so that the suction port corresponds to the area between the first and second rolling brushes, and dirt between the first and second rolling brushes is uniformly sucked into the cleaning device.

[0052] It is easy to understand that if the suction port is arranged in the space outside the two sides of the wiper and the suction port cannot be blocked by the first or second rolling brush, the suction port will occupy additional space on the mop body, which will result in an increase in the overall size of the mop assembly. Moreover, if the suction port is close to the first rolling brush, a corresponding suction port needs to be arranged close to the second rolling brush, which will result in a larger overall size of the mop assembly and affect the flexibility of the movement of the mop assembly. Therefore, in the embodiment of the present application, a group of suction ports between the first and second wiper portions can be used to suck dirt between the first and second rolling brushes into the cleaning device, so that the structure of the mop assembly is compact and the flexibility of the movement of the mop assembly is improved.

[0053] According to an embodiment of the present application, the rotating assembly includes a first rotating shaft extending along the axial direction of the first rolling brush, and the body is inclined to the direction of travel of the mop body through the first rotating shaft.

[0054] The rotating assembly further comprises a second rotating shaft extending along the advancing direction of the brush body, and the machine body is inclined to the axial direction of the first rotating shaft through the second rotating shaft.

[0055] It should be noted that the machine body is inclined to the advancing direction of the brush body through the first rotating shaft. In other words, the brush body can be inclined to the advancing direction relative to the machine body. The brush body can be inclined to the advancing direction of the brush body around the first rotating shaft, or can be inclined to the retreating direction of the brush body around the first rotating shaft. The machine body is inclined to the axial direction of the first rotating shaft through the second rotating shaft. In other words, the brush body can be inclined to the axial direction of the first rotating shaft relative to the machine body. The brush body can be inclined to the left around the second rotating shaft relative to the advancing direction of the brush body, or can be inclined to the right around the second rotating shaft relative to the advancing direction of the brush body.

[0056] Therefore, in the embodiment of the present application, the brush body can be inclined to the front and back direction by 180° relative to the machine body relative to the advancing direction of the brush body, or can be inclined to the left and right direction by 180°. When cleaning narrow space such as the bottom of a bed, the machine body can be parallel to the surface to be cleaned. The brush body can be deep into the narrow space to reduce the area of the dead angle and improve the cleaning effect.

[0057] In some examples, the rotating assembly can be located on the side of the brush body away from the surface to be cleaned, and connected to the machine body. Along the advancing direction of the brush body, the rotating assembly can be located in the middle region of the first and second rolling brushes, and along the axial direction of the rotating assembly, the rotating assembly can be located in the middle region of the first and / or second rolling brushes. On the one hand, it can be convenient for the user to drive the brush assembly to rotate flexibly through the machine body, and on the other hand, the weight of the machine body can be evenly applied to the brush body to make the brush body apply pressure evenly to the surface to be cleaned, so as to ensure the cleaning effect on the entire surface to be cleaned.

[0058] In a second aspect, the present application provides a cleaning device, which comprises a machine body and the brush assembly in any of the above embodiments, and the brush assembly is connected to the machine body.

[0059] The cleaning device of the embodiment of the present application has a compact overall structure of the brush assembly, and can realize flexible inclination of the brush assembly. Therefore, when cleaning a small space, it can have a better cleaning effect.

[0060] In a third aspect, the present application provides a cleaning system, which comprises a base or a base station and a cleaning device. The cleaning device can be placed on the base or the base station.

[0061] The ground brush assembly provided by the application has the beneficial effects that: only the rolling brush assembly is in contact with the surface to be cleaned in the ground brush assembly, on the one hand, the space occupied by the power wheel or the supporting wheel and the like structure in the ground brush assembly can be reduced, which is conducive to reducing the size of the ground brush assembly; on the other hand, the frictional resistance between the ground brush assembly and the surface to be cleaned can be reduced in the tilting process of the ground brush assembly, so that the tilting process of the ground brush assembly is more flexible through the above two aspects. Moreover, by limiting the ratio range between the axle distance of the first rolling brush and the second rolling brush and the diameter of the first rolling brush and / or the second rolling brush, the overall size of the ground brush assembly in the direction of travel can be limited, so that the structure of the ground brush assembly is more compact, the flexibility of the movement of the ground brush assembly is improved, and thus better cleaning effect can be achieved when cleaning a small space.

[0062] In addition to the technical problems solved by the above-described embodiments of the utility model, the technical features constituting the technical solutions and the beneficial effects brought by these technical features, other technical problems solved by the ground brush assembly, the cleaning equipment and the cleaning system provided by the embodiments of the utility model, other technical features contained in the technical solutions and the beneficial effects brought by these technical features will be further described in detail in the specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0063] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the specification, serve to explain the principles of the application.

[0064] Figure 1 It is a schematic diagram of the three-dimensional structure of the cleaning equipment of an embodiment of the application;

[0065] Figure 2 It is a schematic diagram of the sectional structure of the ground brush assembly and the local fuselage structure of an embodiment of the application;

[0066] Figure 3 It is a schematic diagram of the exploded structure of the ground brush assembly and the local fuselage structure of an embodiment of the application.

[0067] BRIEF DESCRIPTION OF DRAWINGS

[0068] 10 - cleaning equipment;

[0069] 100 - ground brush assembly; 100a - negative pressure cavity;

[0070] 110 - ground brush main body; 110a - suction port;

[0071] 120 - rotating assembly; 121 - first rotating shaft; 122 - second rotating shaft;

[0072] 130 - rolling brush assembly; 131 - first rolling brush; 132 - second rolling brush;

[0073] 140 - wiper; 141 - first wiper portion; 142 - second wiper portion;

[0074] 200 - machine body.

[0075] The specific embodiments of the application have been shown by way of example in the above figures, and will be described in more detail hereafter. These figures and this written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by reference to specific embodiments. DETAILED DESCRIPTION

[0076] The exemplary embodiments will be described in detail herein below with reference to the accompanying drawings. In the following description, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments are not meant to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the present application as detailed in the appended claims. It is apparent that the described embodiments are a part of, not all, embodiments consistent with the present application. Based on the embodiments disclosed in the present application, all other embodiments acquired by those skilled in the art without creative efforts fall within the scope of the present application.

[0077] The cleaning device provided by the embodiments of the present application can be a scrubber. The scrubber is a device for cleaning the ground, which generally comprises a brush assembly, a roller brush, a clean water tank, a sewage tank and the like. The working principle of the scrubber is as follows: through the high-speed rotation of the motor, the roller brush is driven to rotate at high speed, and at the same time, the clean water tank is operated to spray clean water to the roller brush through a water channel. Through the high-speed rotation of the roller brush, the sewage and the like are sucked into the sewage tank through another water channel located behind the roller brush, so that the cleaning process is completed.

[0078] The roller brush is one of the key components of the scrubber, which mainly plays a role in cleaning the surface to be cleaned through mechanical rotation and friction. The scrubber can be divided into a single roller brush structure and a double roller brush structure according to the roller brush. The scrubber with a single roller brush structure has only one roller brush, which is simple in structure and has a single wind direction, and is suitable for cleaning a small area. The scrubber with a double roller brush structure comprises two roller brushes. Through the movement of the two roller brushes, on the one hand, the dirt can be gathered to the middle to improve the cleaning effect, and on the other hand, the contact area with the surface to be cleaned can be increased, which is beneficial to improve the cleaning efficiency.

[0079] In the related art, the scrubber with a double roller brush structure is not flexible in steering during the cleaning process due to the limitations of the booster wheel, the size of the brush body and the shaft. Therefore, it is difficult to realize the cleaning of small spaces such as corners, narrow gaps, bed bottoms and around columns, and the cleaning effect is not good.

[0080] For example, in the related art, a scrubber with a double-roller brush structure is provided with a booster wheel or a support wheel. The booster wheel can be used to provide assistance when the user pushes or pulls the scrubber, so as to reduce the force required by the user during cleaning. The support wheel is mainly used to support the cleaning device and reduce the friction between the cleaning device and the ground, so that the device can easily move forward or backward. Therefore, the booster wheel or the support wheel occupies part of the space of the ground brush assembly, so that the overall size of the ground brush assembly increases. It is easy to understand that the increase in the size of the ground brush assembly easily affects the flexibility of the ground brush assembly during turning during cleaning, and the contact between the booster wheel or the support wheel and the surface to be cleaned increases the friction between the ground brush body and the surface to be cleaned, which also affects the flexibility of the ground brush assembly during movement, thereby affecting the cleaning effect in small spaces.

[0081] Based on the above technical problems, the applicant improves the structure of the existing ground brush assembly. In the embodiments of the present application, since the ground brush body can be tilted relative to the machine body, the roller brush assembly is arranged on the ground brush body, therefore, the ground brush assembly as a whole can be tilted relative to the machine body. And the ground brush assembly is in contact with the surface to be cleaned to clean the surface to be cleaned, therefore, it is easy to understand that the larger the size of the ground brush assembly, the larger the area corresponding to the ground brush assembly and the surface to be cleaned, and the larger the movement resistance of the ground brush body during tilting relative to the machine body. On the contrary, the smaller the size of the ground brush assembly, the smaller the area corresponding to the ground brush assembly and the surface to be cleaned, and the higher the flexibility of the ground brush assembly during tilting, and the smaller the resistance of the ground brush assembly during tilting, which is more conducive to achieving the cleaning effect in small spaces.

[0082] The size of the first roller brush and the second roller brush and the positional relationship between the first roller brush and the second roller brush can affect the overall size of the ground brush assembly. Therefore, the size of the first roller brush and the second roller brush and the positional relationship between the first roller brush and the second roller brush can affect the flexibility of the movement of the ground brush body relative to the machine body.

[0083] In the embodiments of the present application, by setting the ratio between the track distance of the first roller brush and the second roller brush and the diameter of the first roller brush to be 0.9-1.5, and / or the ratio between the track distance of the first roller brush and the second roller brush and the diameter of the second roller brush to be 0.9-1.5, the first roller brush and the second roller brush can have a smaller distance between them, and the structure of the first roller brush and the second roller brush is relatively compact. Therefore, the first roller brush and the second roller brush occupy less space of the ground brush assembly, which can reduce the overall size of the ground brush assembly and the area corresponding between the ground brush assembly and the surface to be cleaned, which is conducive to improving the flexibility of the ground brush assembly during movement.

[0084] The ground brush assembly 100, the cleaning device 10 and the cleaning system provided by the present application will be described below with reference to the accompanying drawings and in combination with specific embodiments.

[0085] Referring to Figures 1 to 3 As shown in the drawings, the floor brush assembly 100 of the embodiment of the application can include a floor brush body 110, a rotating assembly 120 and a rolling brush assembly 130.

[0086] The rotating assembly 120 is arranged on the floor brush body 110. The rotating assembly 120 connects the floor brush body 110 and the machine body 200. The rotating assembly 120 enables the floor brush body 110 to be inclined to at least two directions relative to the machine body 200.

[0087] The rolling brush assembly 130 can be arranged on the floor brush body 110. The rolling brush assembly 130 is used to contact the surface to be cleaned, and only the rolling brush assembly 130 contacts the surface to be cleaned. The rolling brush assembly 130 can include a first rolling brush 131 and a second rolling brush 132. The first rolling brush 131 and the second rolling brush 132 can be arranged in parallel along the direction of travel of the floor brush body 110 (for example, the X direction as shown in the drawings). Figure 1 and Figure 2 A negative pressure cavity 100a is formed between the first rolling brush 131 and the second rolling brush 132.

[0088] The ratio of the axial distance between the first rolling brush 131 and the second rolling brush 132 to the diameter of the first rolling brush 131 is in the range of 0.9-1.5. And / or, the ratio of the axial distance between the first rolling brush 131 and the second rolling brush 132 to the diameter of the second rolling brush 132 is in the range of 0.9-1.5.

[0089] In the embodiment of the application, only the rolling brush assembly 130 in the floor brush assembly 100 contacts the surface to be cleaned, so that no structure such as a booster wheel or a supporting wheel that contacts the surface to be cleaned is arranged in the floor brush assembly 100, so that the floor brush assembly 100 is not prone to increase in size due to the arrangement of the booster wheel or the supporting wheel, and the floor brush assembly 100 is not prone to increase in resistance during the inclination process due to the arrangement of the booster wheel or the supporting wheel, which is conducive to improving the motion flexibility of the floor brush assembly 100.

[0090] By setting the ratio of the axial distance between the first rolling brush 131 and the second rolling brush 132 to the diameter of the first rolling brush 131 in the range of 0.9-1.5, and / or the ratio of the axial distance between the first rolling brush 131 and the second rolling brush 132 to the diameter of the second rolling brush 132 in the range of 0.9-1.5, the spacing between the first rolling brush 131 and the second rolling brush 132 can be small, and even the bristles of the first rolling brush 131 and the second rolling brush 132 can have a certain amount of interference, so that the layout of the first rolling brush 131 and the second rolling brush 132 is compact, and the overall size of the floor brush assembly 100 is reduced.

[0091] It is easy to understand that the more compact the structure of the floor brush assembly 100 is in the advancing direction of the floor brush body 110, the more flexible the tilting movement of the floor brush assembly 100 is when the floor brush assembly 100 touches the obstacle, and the smaller the tilting force applied by the user to the floor brush assembly 100. Especially when cleaning small spaces such as wall corners, narrow gaps, bed bottoms, around columns, etc., the floor brush body 110 can move flexibly relative to the machine body 200 to adjust the movement direction of the floor brush body 110 and clean the dead angle of the small space, thereby improving the cleaning effect of the small space.

[0092] Specifically, the cleaning process is described by taking the floor brush assembly 100 cleaning the surface to be cleaned at the wall corner as an example. For example, in the advancing direction of the floor brush body 110, the first roller brush 131 is arranged in front of the second roller brush 132. The axis of the first roller brush 131 is parallel to the front obstacle wall. When the floor brush assembly 100 advances to the wall, the first roller brush 131 contacts the wall. Since the first roller brush 131 and the second roller brush 132 are columnar structures, a large dead angle is easily generated between the first roller brush 131 and the wall. At this time, the floor brush assembly 100 of the embodiment of the present application can realize the flexible tilting of the floor brush assembly 100 relative to the machine body 200. The direction of the floor brush body 110 can be tilted so that the axis of the first roller brush 131 can intersect (for example, perpendicular) with the wall, thereby reducing or eliminating the dead angle between the first roller brush 131 and the wall. Then, the floor brush assembly 100 can continue to be driven to advance along the edge of the wall, and the first roller brush 131 and the second roller brush 132 can clean the surface to be cleaned at the wall corner.

[0093] Therefore, in the embodiment of the present application, when the floor brush body 110 advances to clean the surface to be cleaned, it can move flexibly relative to the machine body 200 when encountering an obstacle such as a wall, and the floor brush assembly 100 can turn the direction to adjust the cleaning direction of the roller brush assembly 130, thereby cleaning the surface to be cleaned near the obstacle in multiple directions, which is beneficial to reduce the area of the dead angle and improve the cleaning effect of the small space.

[0094] In addition, since no booster wheel or support wheel structure is arranged in the embodiment of the present application, the weight of the floor brush assembly 100 and the machine body 200 can all act on the floor brush assembly 100, which is beneficial to increase the acting force between the floor brush assembly 100 and the surface to be cleaned, thereby increasing the frictional force between the first roller brush 131 and the second roller brush 132 and the surface to be cleaned when cleaning the surface to be cleaned, which is beneficial to improve the cleaning effect of the surface to be cleaned.

[0095] In the embodiments of the present application, the rotating assembly 120 can enable the brush main body 110 to tilt relative to the machine body 200 in at least two directions. The two directions can refer to the front-back direction and the left-right direction of the brush main body 110. The front-back direction can refer to the advancing direction of the brush main body 110. The brush main body 110 can tilt relative to the machine body 200 in the advancing direction of the brush main body 110. The advancing direction can include the forward direction and the backward direction. The left-right direction can be relative to the advancing direction. For example, the left-right direction can refer to the axial direction of the first roller brush 131. The left-right direction can intersect the advancing direction. Relative to the advancing direction of the brush main body 110, the brush main body 110 can tilt relative to the machine body 200 to the left and the right. Therefore, the rotating assembly 120 can more effectively improve the tilting flexibility of the brush main body 110 relative to the machine body 200.

[0096] In some possible implementations, referring to Figure 2 As shown in the figure, along the advancing direction of the brush main body 110, the size of the outer contour of the brush main body 110 can be less than the distance d between the most distantly spaced ends of the first roller brush 131 and the second roller brush 132.

[0097] It should be noted that the distance d between the most distantly spaced ends of the first roller brush 131 and the second roller brush 132 refers to the maximum size of the outer contour of the first roller brush 131 and the outer contour of the second roller brush 132 along the advancing direction of the brush main body 110.

[0098] In the embodiments of the present application, by setting the distance d between the most distantly spaced ends of the first roller brush 131 and the second roller brush 132, the contact areas of the first roller brush 131 and the second roller brush 132 on the surface to be cleaned can be satisfied, so as to ensure the cleaning efficiency of the double-roller brush structure formed by the first roller brush 131 and the second roller brush 132 on the surface to be cleaned. By setting the size of the outer contour of the brush main body 110 along the advancing direction to be less than the distance d between the most distantly spaced ends of the first roller brush 131 and the second roller brush 132 along the advancing direction of the brush main body 110, the size of the brush main body 110 can be small under the condition of ensuring the cleaning efficiency, so that the structure of the brush assembly 100 can be more compact, and the tilting flexibility of the brush main body 110 relative to the machine body 200 can be improved.

[0099] In addition, the first roller brush 131 and the second roller brush 132 have relatively soft bristles. By setting the size of the outer contour of the brush main body 110 along the advancing direction to be less than the distance d between the most distantly spaced ends of the first roller brush 131 and the second roller brush 132, when the brush assembly 100 touches an obstacle such as a wall, the relatively soft first roller brush 131 or the second roller brush 132 can first contact the obstacle, so that the possibility of hard collision between the brush main body 110 and the obstacle, which can cause abrasion of the brush main body 110, can be reduced, and the brush main body 110 can be protected.

[0100] In some examples, the size of the furthest-apart spacing d between the first roller brush 131 and the second roller brush 132 in the travel direction of the brush body 110 can be less than the length of the first roller brush 131 and / or the second roller brush 132. For example, when the first roller brush 131 and the second roller brush 132 have the same size, the size of the furthest-apart spacing d between the first roller brush 131 and the second roller brush 132 can be less than or equal to half of the length of the first roller brush 131, so that the structure of the brush assembly 100 in the travel direction is more compact.

[0101] In some examples, when the ratio between the axial distance of the first roller brush 131 and the second roller brush 132 and the diameter of the first roller brush 131 is less than 1, the furthest-apart spacing d between the first roller brush 131 and the second roller brush 132 is less than the sum of the diameter of the first roller brush 131 and the diameter of the second roller brush 132. When the ratio between the axial distance of the first roller brush 131 and the second roller brush 132 and the diameter of the first roller brush 131 is equal to 1, the furthest-apart spacing d between the first roller brush 131 and the second roller brush 132 is equal to the sum of the diameter of the first roller brush 131 and the diameter of the second roller brush 132. When the ratio between the axial distance of the first roller brush 131 and the second roller brush 132 and the diameter of the first roller brush 131 is greater than 1, the furthest-apart spacing d between the first roller brush 131 and the second roller brush 132 is greater than the sum of the diameter of the first roller brush 131 and the diameter of the second roller brush 132.

[0102] In some implementable manners, referring to FIG. 8, Figure 2 As shown, in the travel direction of the brush body 110, the outer contour of the brush body 110 in the vertical direction (for example, the Y direction in FIG. 8) is projected inside the outer contour of the first roller brush 131 and the second roller brush 132 in the vertical direction. Figure 2 In some examples, the outer contour of the brush body 110 in the vertical direction is projected inside the outer contour of the first roller brush 131 and the second roller brush 132 in the vertical direction in the travel direction of the brush body 110.

[0103] It should be noted that the vertical direction of the embodiments of the present application is the direction perpendicular to the surface to be cleaned. In other words, when the brush assembly 100 cleans the surface to be cleaned, the vertical direction refers to the direction perpendicular to the surface to be cleaned.

[0104] In the embodiments of the present application, by setting the outer contour of the brush body 110 in the vertical direction in the travel direction of the brush body 110 to be projected within the outer contour of the first roller brush 131 and the second roller brush 132 in the vertical direction, the brush body 110 can have a smaller size in the travel direction. In the travel direction of the brush body 110, the brush body 110 does not occupy a large space of the brush assembly 100, so that the structure of the brush assembly 100 is compact, thereby improving the flexibility of the brush assembly 100 during movement.

[0105] In some examples, the present application does not limit the outer contour size of the brush body 110 along the first roller brush 131 axial direction, nor the outer contour size of the brush body 110 along the first roller brush 131 axial direction.

[0106] In some examples, along the travel direction of the brush body 110, the first roller brush 131 and the second roller brush 132 can be symmetrically arranged relative to the center line N-N. The brush body 110 is arranged above the first roller brush 131 and the second roller brush 132. The brush body 110 can be a symmetric structure relative to the center line N-N.

[0107] In some realizable ways, referring to Figure 2 As shown, along the travel direction of the brush body 110, at least part of the first roller brush 131 can be exposed to the brush body 110. Along the travel direction of the brush body 110, at least part of the second roller brush 132 can be exposed to the brush body 110.

[0108] In the present application, along the travel direction of the brush body 110, when the first roller brush 131 is located in front of the second roller brush 132, by arranging at least part of the first roller brush 131 to be exposed to the brush body 110, the first roller brush 131 can be in contact with the wall first when the brush body 110 runs to the corner of the wall. The first roller brush 131 can be used to clean the skirting line below the wall.

[0109] Similarly, along the travel direction of the brush body 110, when the second roller brush 132 is located in front of the first roller brush 131, by arranging at least part of the second roller brush 132 to be exposed to the brush body 110, the second roller brush 132 can be in contact with the wall first when the brush body 110 runs to the corner of the wall. The second roller brush 132 can be used to clean the skirting line below the wall.

[0110] Specifically, taking the first roller brush 131 as an example, when the first roller brush 131 moves to the corner of the wall, the dust and other debris on the skirting line can be rolled out by the rotation of the first roller brush 131 and sucked into the cleaning device 10 through the negative pressure cavity 100a, thereby achieving cleaning of the skirting line.

[0111] Therefore, the first roller brush 131 and the second roller brush 132 can achieve cleaning of the skirting line, and users no longer need to squat to manually clean the skirting line, which is beneficial to enrich the cleaning function of the cleaning device 10 and improve the user experience.

[0112] In some examples, the brush body 110 is located above the first roller brush 131 and the second roller brush 132. At least half of the outer circumferential surface of the first roller brush 131 can be exposed outside the brush body 110. At least half of the outer circumferential surface of the second roller brush 132 can be exposed outside the brush body 110. Therefore, through the exposed portions of the first roller brush 131 and the second roller brush 132 from the brush body 110, a user can conveniently observe the dirt condition of the first roller brush 131 and the second roller brush 132 in real time. When the first roller brush 131 and the second roller brush 132 are heavily soiled, the user can clean the first roller brush 131 and the second roller brush 132 in time, so as to reduce the possibility of secondary pollution of the surface to be cleaned caused by using the first roller brush 131 and the second roller brush 132 with a large degree of soiling.

[0113] In some possible implementations, the first roller brush 131 and the second roller brush 132 of the embodiment of the present application can rotate in opposite directions. At least part of the first roller brush 131 and the second roller brush 132 overlap each other.

[0114] In the embodiment of the present application, the first roller brush 131 and the second roller brush 132 have relatively soft bristles. When at least part of the first roller brush 131 and the second roller brush 132 overlap each other, due to the opposite rotation of the first roller brush 131 and the second roller brush 132, the overlapping part of the first roller brush 131 and the second roller brush 132 does not affect the rotation of the first roller brush 131 and the second roller brush 132. Moreover, due to the overlapping part of the first roller brush 131 and the second roller brush 132, the distance d between the most distal ends of the first roller brush 131 and the second roller brush 132 in the direction of travel of the brush body 110 can be reduced. At this time, the distance d is smaller than the sum of the diameter of the first roller brush 131 and the diameter of the second roller brush 132. In addition, when the size of the outer contour of the brush body 110 in the direction of travel of the brush body 110 is smaller than the distance d between the most distal ends of the first roller brush 131 and the second roller brush 132, the size of the brush body 110 in the direction of travel can also be reduced, so that the structure of the brush assembly 100 in the direction of travel can be more compact, thereby improving the flexibility of movement of the brush assembly 100 and improving the cleaning effect in small spaces.

[0115] In some possible implementations, the first roller brush 131 and the second roller brush 132 of the embodiment of the present application can rotate in opposite directions. At least part of the first roller brush 131 and the second roller brush 132 overlap each other.

[0116] In addition, by at least partially overlapping the first roller brush 131 and the second roller brush 132, the area of the negative pressure cavity 100a formed by the first roller brush 131 and the second roller brush 132 corresponding to the surface to be cleaned can be reduced, which is beneficial to improve the suction force on the surface to be cleaned, thereby improving the suction effect on dirt.

[0117] In some implementable manners, the ratio between the axial distance of the first roller brush 131 and the second roller brush 132 and the diameter of the first roller brush 131 is 1.1-1.3, and the ratio between the axial distance of the first roller brush 131 and the second roller brush 132 and the diameter of the second roller brush 132 is 1.1-1.3.

[0118] It is easy to understand that increasing the axial distance of the first roller brush 131 and the second roller brush 132 can increase the area corresponding to the surface to be cleaned by the brush assembly 100, which is beneficial to improve the cleaning efficiency. However, increasing the axial distance of the first roller brush 131 and the second roller brush 132 will also increase the size of the brush assembly 100 in the direction of travel, thereby affecting the flexibility of the movement of the brush assembly 100. Especially when the brush assembly 100 cleans a small space, the movement of the brush assembly 100 is limited, which is easy to cause poor cleaning effect.

[0119] Therefore, in the embodiment of the present application, by setting the ratio between the axial distance of the first roller brush 131 and the second roller brush 132 and the diameter of the first roller brush 131 to be 1.1-1.3, and the ratio between the axial distance of the first roller brush 131 and the second roller brush 132 and the diameter of the second roller brush 132 to be 1.1-1.3, the structure of the first roller brush 131 and the second roller brush 132 can be more compact under the condition that the corresponding area of the first roller brush 131 and the second roller brush 132 to the surface to be cleaned is met to ensure the cleaning efficiency, thereby the overall structure of the brush assembly 100 in the direction of travel is compact, which is beneficial to improve the flexibility of the movement of the brush assembly 100 and improve the cleaning effect in a small space.

[0120] It should be noted that the diameter of the first roller brush 131 and the diameter of the second roller brush 132 in the embodiment of the present application can be equal or not equal, which is not limited in the present application.

[0121] In some implementable manners, the axial distance of the first roller brush 131 and the second roller brush 132 in the embodiment of the present application can be between 55mm-82mm.

[0122] In the embodiments of the present application, the first roller brush 131 and the second roller brush 132 are arranged with an axial distance of 55mm-82mm, so as to meet the contact area between the floor brush assembly 100 and the surface to be cleaned along the advancing direction of the floor brush body 110, so that the floor brush assembly 100 can have a higher cleaning efficiency. In addition, by arranging the first roller brush 131 and the second roller brush 132 with an axial distance of 55mm-82mm, the distance d between the first roller brush 131 and the second roller brush 132 at the farthest end along the advancing direction of the floor brush body 110 can be limited. The distance d between the first roller brush 131 and the second roller brush 132 at the farthest end along the advancing direction of the floor brush body 110 is not too large, so that the size of the floor brush body 110 along the advancing direction is also not too large, so that the overall structure of the floor brush assembly 100 is relatively compact.

[0123] In the embodiments of the present application, the diameters of the first roller brush 131 and the second roller brush 132 are not limited, and the axial sizes of the first roller brush 131 and the second roller brush 132 are not limited. For example, the first roller brush 131 and the second roller brush 132 can have the same size.

[0124] In some possible implementations, referring to FIG. 1, Figure 2 As shown in FIG. 1, the first roller brush 131, the second roller brush 132 and the bottom wall of the floor brush body 110 form a containing space. The floor brush assembly 100 can further include a squeegee 140. The squeegee 140 is arranged on the floor brush body 110. The squeegee 140 can be located in the containing space. Along the advancing direction of the floor brush body 110, one side of the squeegee 140 corresponds to the first roller brush 131. The other side of the squeegee 140 corresponds to the second roller brush 132.

[0125] In the embodiments of the present application, the squeegee 140 can be used to remove the water and dirt remaining on the first roller brush 131 and the second roller brush 132, so as to ensure the cleaning state of the first roller brush 131 and the second roller brush 132 when contacting the surface to be cleaned, and avoid the phenomenon that the surface to be cleaned becomes dirtier after being cleaned due to the dirt or sewage on the first roller brush 131 and the second roller brush 132.

[0126] In the embodiments of the present application, the first roller brush 131 and the second roller brush 132 can share the same squeegee 140, so as to save the space between the first roller brush 131 and the second roller brush 132, and facilitate to improve the compactness of the structure of the floor brush assembly 100.

[0127] In some examples, the first and second rolling brushes 131 and 132 can be fixed to the side of the floor brush body 110 facing the surface to be cleaned. Since the first and second rolling brushes 131 and 132 are columnar structures, a receiving space can be formed between the first and second rolling brushes 131 and 132 and the floor brush body 110. The receiving space can be used to arrange the squeegee 140. In other words, the squeegee 140 can make rational use of the receiving space, so that the squeegee 140 does not easily occupy additional space on the floor brush assembly 100, which is conducive to improving the compactness of the structure of the floor brush assembly 100.

[0128] In some examples, the squeegee 140 can include first and second squeegee portions 141 and 142 opposite to each other. The first squeegee portion 141 can correspond to the first rolling brush 131. The second squeegee portion 142 can correspond to the second rolling brush 132.

[0129] In some examples, the first squeegee portion 141 can extend along the axial direction of the first rolling brush 131. The first squeegee portion 141 can be in a state of close contact with the first rolling brush 131 to sufficiently scrape off the water and dirt on the first rolling brush 131. The second squeegee portion 142 can extend along the axial direction of the second rolling brush 132. The second squeegee portion 142 can be in a state of close contact with the second rolling brush 132 to sufficiently scrape off the water and dirt on the second rolling brush 132.

[0130] In some examples, only the squeegee 140 and a structure for fixing the squeegee 140 can be arranged in the receiving space formed by the first and second rolling brushes 131 and 132 and the floor brush body 110, so that the structure of the first and second rolling brushes 131 and 132 can be more compact.

[0131] In some examples, the side of the floor brush body 110 facing the surface to be cleaned can be provided with a plurality of spray openings. The plurality of spray openings can correspond to the first and second rolling brushes 131 and 132, respectively, to spray clean water on the first and second rolling brushes 131 and 132. Therefore, during the cleaning process, the spray openings can spray clean water on the first and second rolling brushes 131 and 132 to wet the first and second rolling brushes 131 and 132, so as to clean the dirt on the surface to be cleaned. After the first and second rolling brushes 131 and 132 clean the surface to be cleaned, the squeegee 140 can scrape off the dirty water and dirt on the first and second rolling brushes 131 and 132. The dirty water and dirt can fall on the surface to be cleaned, and the negative pressure cavity 100a formed by the first and second rolling brushes 131 and 132 can suck the dirty water and dirt on the surface to be cleaned into the cleaning device 10.

[0132] In some examples, the squeegee 140 can include first and second squeegee portions 141 and 142 opposite to each other. The first squeegee portion 141 can correspond to the first rolling brush 131. The second squeegee portion 142 can correspond to the second rolling brush 132. Figure 2As shown, the brush body 110 can further include a suction port 110a. The suction port 110a is located above the first roller brush 131 and the second roller brush 132, and between the two sides of the wiper 140.

[0133] In the embodiment, the suction port 110a can be used to suck the dirt on the surface to be cleaned into the cleaning device 10. The suction port 110a is in communication with the negative pressure cavity 100a. Since the first wiper part 141 of the wiper 140 corresponds to the first roller brush 131, and the second wiper part 142 of the wiper 140 corresponds to the second roller brush 132, the suction port 110a can be located between the first wiper part 141 and the second wiper part 142, so that the suction port 110a corresponds to the area between the first roller brush 131 and the second roller brush 132, so as to uniformly suck the dirt between the first roller brush 131 and the second roller brush 132 into the cleaning device 10.

[0134] It is easy to understand that if the suction port is arranged in the space outside the two sides of the wiper 140, and the suction port cannot be blocked by the first roller brush 131 or the second roller brush 132, the suction port will occupy additional space on the brush body 110, resulting in an increase in the overall size of the brush assembly 100. Moreover, if the suction port is close to the first roller brush 131, a corresponding suction port needs to be arranged close to the second roller brush 132, so that the overall size of the brush assembly 100 is larger, affecting the flexibility of the movement of the brush assembly 100. Therefore, in the embodiment, a group of suction ports 110a between the first wiper part 141 and the second wiper part 142 can suck the dirt between the first roller brush 131 and the second roller brush 132 into the cleaning device 10, so that the structure of the brush assembly 100 is compact, which is conducive to improving the flexibility of the movement of the brush assembly 100.

[0135] In some possible implementation manners, referring to Figures 1 to 3 As shown, the rotating assembly 120 of the embodiment can include a first rotating shaft 121. The first rotating shaft 121 extends along the axial direction of the first roller brush 131. The machine body 200 is inclined to the advancing direction of the brush body 110 through the first rotating shaft 121. The rotating assembly 120 can further include a second rotating shaft 122, and the second rotating shaft 122 extends along the advancing direction of the brush body 110. The machine body 200 is inclined to the axial direction of the first rotating shaft 121 through the second rotating shaft 122.

[0136] It should be noted that the machine body 200 is inclined to the advancing direction of the brush body 110 through the first rotating shaft 121. In other words, the brush body 110 can be inclined to the advancing direction relative to the machine body 200. Among them, the brush body 110 can be inclined to the advancing direction of the brush body 110 around the first rotating shaft 121, or can be inclined to the retreating direction of the brush body 110 around the first rotating shaft 121. The machine body 200 is inclined to the axial direction of the first rotating shaft 121 through the second rotating shaft 122. In other words, the brush body 110 can be inclined to the axial direction of the first rotating shaft 121 relative to the machine body 200. Among them, relative to the advancing direction of the brush body 110, the brush body 110 can be inclined to the left around the second rotating shaft 122, or can be inclined to the right around the second rotating shaft 122.

[0137] Therefore, in the embodiment of the present application, relative to the advancing direction of the brush body 110, the brush body 110 can be inclined to the front and back direction 180° relative to the machine body 200, or can be inclined to the left and right direction 180°. When cleaning narrow space such as the bottom of the bed, the machine body 200 can be parallel to the surface to be cleaned. The brush body 110 can be deep into the narrow space to reduce the area of the dead angle and improve the cleaning effect.

[0138] In some examples, the rotating assembly 120 can be located on the side of the brush body 110 away from the surface to be cleaned, and connected to the machine body 200. Along the advancing direction of the brush body 110, the rotating assembly 120 can be located in the middle region of the first and second rolling brushes 131 and 132, and along the axial direction of the rotating assembly 120, the first and / or second rolling brushes 131 and 132 can be located in the middle region.

[0139] On the one hand, it can be convenient for the user to drive the brush assembly 100 to rotate flexibly through the machine body 200, and on the other hand, the weight of the machine body 200 can be evenly applied to the brush body 110, so that the brush body 110 can uniformly press the surface to be cleaned, thereby ensuring the cleaning effect on the entire surface to be cleaned.

[0140] In some examples, the rotating assembly 120 can be connected to the brush body 110 through the first rotating shaft 121. The rotating assembly 120 can be connected to the machine body 200 through the second rotating shaft 122.

[0141] In some examples, the first rotating shaft 121 and the second rotating shaft 122 can be internally hollow structures to arrange cables through the internally hollow space.

[0142] The embodiment of the present application also provides a cleaning device 10, as shown in Figure 1 The cleaning device 10 can include a machine body 200 and a brush assembly 100.

[0143] The brush assembly 100 is connected to the body 200. During operation of the cleaning device 10, the user can push the body 200 to make the brush assembly 100 advance or retreat.

[0144] The cleaning device 10 of the embodiment of the present application has a compact overall structure of the brush assembly 100, and can realize flexible tilting of the brush assembly 100. Therefore, when cleaning a small space, the cleaning device 10 can have a better cleaning effect.

[0145] In some examples, the brush assembly 100 and the body 200 can be detachably connected. For example, the brush assembly 100 and the body 200 can be connected by a snap-fit manner, but are not limited thereto.

[0146] In some examples, the cleaning device 10 can further include a clean water tank and a dirty water tank. The clean water tank and the dirty water tank can be arranged on the brush assembly 100 or the body 200. Alternatively, one of the clean water tank and the dirty water tank can be arranged on the brush assembly 100, and the other can be arranged on the body 200. The present application is not limited in this regard.

[0147] In some implementable embodiments, the cleaning system can include a base or a station. The cleaning device 10 can be placed on the base or the station.

[0148] In some examples, the base can be used to clean the roller brush and dry the roller brush assembly 130 to avoid the generation of odor or bacteria due to the long time of the roller brush assembly 130 in a wet state.

[0149] In some examples, the station can have a charging function. When the cleaning device 10 is placed on the station, the station can be charged, and the water can be automatically supplied and drained. The base and the station can be a split structure, or the base and the station can be an integrated structure, and the present application is not limited in this regard.

[0150] It should be noted that the values and value ranges involved in the present application are approximate values, and due to the influence of the manufacturing process, there can be a certain range of errors, which can be considered negligible by those skilled in the art.

[0151] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", and "connection" should be understood in a broad sense, for example, can be fixedly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0152] In the description of the present application, it should be understood that the terms "center", "length", "width", "thickness", "top end", "bottom end", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inner", "outer", "axial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated position or element must have a particular orientation, a particular configuration and operation, and therefore cannot be understood as a limitation on the present application.

[0153] In the description of the present application, it should be understood that the terms "center", "length", "width", "thickness", "top end", "bottom end", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inner", "outer", "axial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated position or element must have a particular orientation, a particular configuration and operation, and therefore cannot be understood as a limitation on the present application.

[0154] The terms "first", "second", "third", "fourth" and the like used in the description of the present application and claims, and the above-described drawings (if any) are used to distinguish similar objects, and do not necessarily have to describe a particular order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the present application described herein can be implemented in an order other than that illustrated or described herein.

[0155] In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to the process, method, product or device.

[0156] The term "a plurality of" herein refers to two or more. The term "and / or" herein is only a description of the association relationship between the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects; in the formula, the character " / " represents a "division" relationship between the associated objects.

[0157] It can be understood that the various numerical numbers involved in the embodiments of the present application are only for the convenience of differentiation in the description, and do not limit the scope of the embodiments of the present application.

[0158] It can be understood that, in the embodiments of the present application, the size of the serial number of the above processes does not mean the order of execution, and the execution order of the processes should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Claims

1. A floor brush assembly (100), characterized in that, include: Floor brush body (110); A rotating assembly (120) is disposed on the brush body (110), the rotating assembly (120) connects the brush body (110) and the body (200), and the rotating assembly (120) allows the brush body (110) to tilt relative to the body (200) in at least two directions; A roller brush assembly (130) is disposed on the floor brush body (110). The roller brush assembly (130) is used to contact the surface to be cleaned, and only the roller brush assembly (130) contacts the surface to be cleaned. The roller brush assembly (130) includes a first roller brush (131) and a second roller brush (132). The first roller brush (131) and the second roller brush (132) are arranged in parallel, and a negative pressure cavity (100a) is formed between the first roller brush (131) and the second roller brush (132). Wherein, the ratio between the wheelbase of the first roller brush (131) and the second roller brush (132) and the diameter of the first roller brush (131) is in the range of 0.9-1.5, and / or, the ratio between the wheelbase of the first roller brush (131) and the second roller brush (132) and the diameter of the second roller brush (132) is in the range of 0.9-1.

5.

2. The floor brush assembly (100) according to claim 1, characterized in that, Along the traveling direction of the brush body (110), the outer contour of the brush body (110) is smaller than the distance between the farthest ends of the first roller brush (131) and the second roller brush (132).

3. The floor brush assembly (100) according to claim 1, characterized in that, Along the traveling direction of the brush body (110), the vertical projection of the outer contour of the brush body (110) is located inside the vertical projection of the outer contours of the first roller brush (131) and the second roller brush (132).

4. The floor brush assembly (100) according to claim 1, characterized in that, Along the travel direction of the brush body (110), at least a portion of the first roller brush (131) is exposed outside the brush body (110); Along the travel direction of the brush body (110), at least a portion of the second roller brush (132) is exposed outside the brush body (110).

5. The floor brush assembly (100) according to any one of claims 1 to 4, characterized in that, The first roller brush (131) and the second roller brush (132) rotate in opposite directions, and at least a portion of the first roller brush (131) and the second roller brush (132) overlap each other.

6. The floor brush assembly (100) according to any one of claims 1 to 4, characterized in that, The ratio between the wheelbase of the first roller brush (131) and the second roller brush (132) and the diameter of the first roller brush (131) ranges from 1.1 to 1.

3. The ratio between the wheelbase of the first roller brush (131) and the second roller brush (132) and the diameter of the second roller brush (132) ranges from 1.1 to 1.

3.

7. The floor brush assembly (100) according to any one of claims 1 to 4, characterized in that, The wheelbase between the first roller brush (131) and the second roller brush (132) is between 55mm and 82mm.

8. The floor brush assembly (100) according to claim 7, characterized in that, A receiving space is formed between the first roller brush (131), the second roller brush (132), and the bottom wall of the floor brush body (110); It also includes a wiper (140), which is disposed on the brush body (110). The wiper (140) is located in the receiving space. Along the traveling direction of the brush body (110), one side of the wiper (140) corresponds to the first roller brush (131), and the other side of the wiper (140) corresponds to the second roller brush (132).

9. The floor brush assembly (100) according to claim 8, characterized in that, The floor brush body (110) also includes a suction port (110a), which is located above the first roller brush (131) and the second roller brush (132), and is located between the two sides of the wiper (140).

10. The floor brush assembly (100) according to claim 8, characterized in that, The rotating assembly (120) includes a first rotating shaft (121) that extends along the axial direction of the first roller brush (131), and the body (200) tilts in the direction of travel of the floor brush body (110) via the first rotating shaft (121). The rotating assembly (120) further includes a second rotating shaft (122) that extends along the travel direction of the brush body (110), and the body (200) tilts axially toward the first rotating shaft (121) via the second rotating shaft (122).

11. A cleaning device (10), characterized in that, include: fuselage (200); And the floor brush assembly (100) as described in any one of claims 1 to 10, the floor brush assembly (100) being connected to the body (200).

12. A cleaning system, characterized in that, include: Base station or base station; And the cleaning device (10) as claimed in claim 11, wherein the cleaning device (10) may be placed on a base or a base station.

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