Rolling brush module, cleaning device and cleaning system

Abstract

The application discloses a rolling brush module, a cleaning device and a cleaning system. The rolling brush module comprises at least one rolling brush, the rolling brush comprises a rolling drum part and two or more brush strips connected to the rolling drum part. The two or more brush strips are spaced apart along the circumference of the rolling drum part, each brush strip is in a spiral shape, and the spiral parameters of at least two brush strips are different. When the rolling brush rotates to clean garbage on a surface to be cleaned, the brush strips with different spiral parameters interact with the surface to be cleaned, which can improve the scraping and garbage picking effect on the surface to be cleaned, thereby improving the cleaning performance of the cleaning device provided with the rolling brush module.

Description

Technical Field

[0001] This application belongs to the field of cleaning equipment technology, and in particular relates to a roller brush module, cleaning equipment and cleaning system. Background Technology

[0002] With the iteration and development of technology, cleaning equipment, represented by intelligent cleaning robots, has entered ordinary household life and is gradually becoming widespread.

[0003] Current cleaning equipment typically uses roller brushes and vacuum systems to collect debris from the floor into its own dust collection bin, thus completing the cleaning function. The structure of the roller brush affects the cleaning effect of the equipment; therefore, it is necessary to optimize the roller brush structure to improve the cleaning performance. Utility Model Content

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a roller brush module, a cleaning device, and a cleaning system, wherein the roller brush can deform to improve the cleaning effect.

[0005] In a first aspect of this application, a roller brush module is provided, comprising at least one roller brush; the roller brush includes a roller portion and two or more brush strips connected to the roller portion; the two or more brush strips are distributed circumferentially at intervals along the roller portion; each of the brush strips is helical, and at least two of the brush strips have different helical parameters.

[0006] In some implementations, at least two of the brush strips rotate in different directions.

[0007] In some embodiments, the number of brush strips is even; half of the brush strips have a forward spiral direction and the other half have a reverse spiral direction; the forward spiral brush strips and the reverse spiral brush strips are alternately arranged along the circumference of the roller portion.

[0008] In some embodiments, the individual brush strips of the positive spiral are evenly distributed circumferentially along the roller portion; the individual brush strips of the negative spiral are evenly distributed circumferentially along the roller portion.

[0009] In some embodiments, the spiral direction of the brush bar is the same as the rotation direction of the roller brush; the outer diameter of the spiral brush bar is not less than the outer diameter of the anti-spiral brush bar.

[0010] In some embodiments, the difference in outer edge diameter between the positive spiral brush bar and the negative spiral brush bar is not less than 0.3 mm.

[0011] In some embodiments, the thickness of the positive spiral brush bar is not greater than the thickness of the negative spiral brush bar.

[0012] In some embodiments, the roller brush is conical.

[0013] In some embodiments, the roller portion has an elastic deformation zone.

[0014] In some embodiments, the roller portion includes an outer cylinder and an inner core, with the outer cylinder spaced outside the inner core so that the annular space between the outer cylinder and the inner core forms the elastic deformation zone; the outer cylinder is made of an elastic material.

[0015] In some embodiments, the roller portion further includes two or more support ribs, which are circumferentially spaced in the annular space, and the two ends of the support ribs are respectively connected to the outer cylinder and the inner core, so as to divide the annular space into several elastic deformation zones.

[0016] In some embodiments, the support rib is made of an elastic material; at least a portion of the support rib is arranged radially inclined relative to the roller portion.

[0017] In some embodiments, the inner core is a hollow inner cylinder; the roller brush further includes a support shaft, at least a portion of which extends into the cavity of the inner cylinder and is kinetically connected to the inner cylinder.

[0018] In some embodiments, the axial dimension of the inner cylinder is smaller than that of the outer cylinder; the support shaft is a stepped shaft, including a first shaft segment and a second shaft segment with a shaft diameter larger than that of the first shaft segment, the first shaft segment extending into the cavity of the inner cylinder, and the second shaft segment abutting against the inner wall of the outer cylinder.

[0019] In some embodiments, the support shaft is circumferentially limited to the inner cylinder wall by a concave-convex structure; and / or, the support shaft is circumferentially limited to the outer cylinder wall by a concave-convex structure.

[0020] In some embodiments, one of the support shaft and the inner cylinder wall is provided with an axially extending guide strip, and the other is provided with an axially extending guide groove, the guide strip being embedded in the guide groove.

[0021] In some embodiments, the roller brush further includes felt that is fitted onto the support shaft.

[0022] In some embodiments, the outer cylinder, the inner cylinder, and the brush strip are integrally formed.

[0023] In some embodiments, the inner core is a drive shaft that transmits power from an external power source.

[0024] In some embodiments, the brush strip has protrusions on its side.

[0025] In some embodiments, the roller brush module includes two roller brushes; the two roller brushes are distributed sequentially along the axial direction and are coaxially arranged.

[0026] In some embodiments, both of the rollers are conical and symmetrically distributed with their smaller diameter ends facing each other.

[0027] In a second aspect of this application, a cleaning device is provided, including a device body and a roller brush module as described in the first aspect, wherein the roller brush of the roller brush module is rotatably mounted on the device body.

[0028] In some embodiments, the main body of the device is provided with a waste storage cavity and a roller brush mounting cavity with the cavity opening facing outward, the waste storage cavity being in communication with the roller brush mounting cavity; the roller brush is mounted in the roller brush mounting cavity.

[0029] In some embodiments, when the brush module includes two conical brushes, the two brushes are symmetrically mounted in the brush mounting cavity with their smaller diameter ends facing each other; the connection between the waste storage cavity and the brush mounting cavity is opposite to the smaller diameter ends of the two brushes.

[0030] In some embodiments, the main body of the device includes a base and a brush cover, the roller brush mounting cavity is disposed in the base, the brush cover covers the opening of the roller brush mounting cavity and is detachably connected to the base; the brush cover has a through opening, through which the roller brush is exposed.

[0031] In a third aspect of this application, a cleaning system is provided, including a base station and the cleaning equipment described in the second aspect above, wherein the cleaning equipment can be docked with the base station or driven away from the base station.

[0032] According to one or more embodiments of this application, a roller brush module includes at least one roller brush, which comprises a roller portion and two or more brush strips connected to the roller portion. The two or more brush strips are distributed circumferentially at intervals along the roller portion, and each brush strip is helical, with at least two brush strips having different helical parameters. When the roller brush rotates to sweep debris from the surface to be cleaned, the brush strips with different helical parameters interact with the surface, improving the scraping and debris pickup effect, thereby enhancing the cleaning performance of the cleaning equipment equipped with the roller brush module. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A schematic diagram of the structure of a roller brush module in one or more embodiments of this application is shown.

[0035] Figure 2 The schematic diagram of the structure of the roller brush of the roller brush module in one or more embodiments of this application is shown. Figure 1 .

[0036] Figure 3 The schematic diagram of the structure of the roller brush of the roller brush module in one or more embodiments of this application is shown. Figure 2 .

[0037] Figure 4 The schematic diagram of the structure of the roller brush of the roller brush module in one or more embodiments of this application is shown. Figure 3 .

[0038] Figure 5 The schematic diagram of the structure of the roller brush of the roller brush module in one or more embodiments of this application is shown. Figure 4 .

[0039] Figure 6 The schematic diagram of the structure of the roller brush of the roller brush module in one or more embodiments of this application is shown. Figure 5 .

[0040] Figure 6A It shows Figure 6 A full cross-sectional view of the roller brush.

[0041] Figure 7 It shows Figure 6 An exploded image of a roller brush.

[0042] Figure 8 It shows Figure 6 A schematic diagram of the brush body in a roller brush.

[0043] Figure 9 It shows Figure 6 A schematic diagram of the support shaft in the roller brush.

[0044] Figure 10 The schematic diagram of the structure of the roller brush of the roller brush module in one or more embodiments of this application is shown. Figure 6 .

[0045] Figure 11 It shows Figure 10 An exploded image of a roller brush.

[0046] Figure 12 It shows Figure 10 The main view of the scroll brush.

[0047] Figure 12A It shows Figure 12 A sectional view along line AA.

[0048] Figure 13 A schematic diagram of the cleaning device in one or more embodiments of this application is shown.

[0049] Figure 14 An installation structure diagram of a roller brush module of a cleaning device is shown in one or more embodiments of this application.

[0050] Figure 15 It shows Figure 14 The front view of the mounting structure of the roller brush module.

[0051] Figure 15A It shows Figure 15 BB-direction sectional view.

[0052] Figure 16 The following diagram illustrates the installation structure of the roller brush module of the cleaning device in some other embodiments of this application.

[0053] Figure 17 The diagram shows the connection structure between the roller brush module and the drive unit of the cleaning device in one or more embodiments of this application.

[0054] Figure 18 A schematic diagram of the cleaning system in one or more embodiments of this application is shown.

[0055] Figure 19 It shows Figure 18 A schematic diagram of the base station structure in the cleaning system.

[0056] Figure 20 It shows Figure 18 A schematic diagram of the cleaning system when the cleaning system returns to the base station.

[0057] Explanation of reference numerals in the attached drawings: 1000-Cleaning system; 100-Cleaning equipment; 110-Equipment body; 111-Base; 1111-Roller brush mounting cavity; 1112-Gas storage cavity; 1113-Connecting channel; 112-Brush cover; 1121-Through opening; 113-Driver component; 1131-Power unit; 1132-Transmission unit; 11321-Transmission shaft; 11322-First transmission unit; 11323-Second transmission unit; 120-Roller brush module; 12-Roller brush; 12A-Large diameter end; 12B-Small diameter end; 121-Brush body; 121A-Open end; 121B-Closed end; 1211-Roller section; 12111-Outer cylinder; 12112-Inner cylinder; 12112a-Inner core; 12113-Supporting rib; 121131-... First segment, 121132-Second segment, 121133-Third segment; 1212-Brush bar, 1212a-Positive spiral brush bar, 1212b-Reverse spiral brush bar, 12121-Protrusion; 122-Support shaft, 1221-First shaft segment, 1222-Second shaft segment, 1223-Third shaft segment, 1224-Drive shaft hole; 123-Felt, 1231-Bristle comb; a-Elastic deformation zone, b-Cavity, c-Annular space, d-Slot, e-Slot protrusion, f-Guide groove, g-Guide strip; 130-Mop; 140-Steering wheel; 150-Side brush; 160-Walking wheel module; 170-Charging component; 200-Base station, 210-Base station body, 220-Cleaning tank; 230-Power supply component, 240-Dust collection channel; 250-Injection nozzle. Detailed Implementation

[0058] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0059] Furthermore, reference numerals and / or reference letters may be repeated in different examples in this application. Such repetition is for simplification and clarity purposes and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0060] In related technologies, the roller brushes of cleaning equipment are equipped with spirally arranged brush strips, which are made of soft rubber or bristles. There are usually two or more brush strips, spaced apart circumferentially along the roller portion of the brush. In these technologies, the spiral parameters (including but not limited to the direction of spiral, pitch, curvature, and helix angle) of each brush strip are identical; therefore, the force and direction of action exerted by each brush strip on the surface to be cleaned are also essentially the same.

[0061] The roller brush in the relevant technology has a good cleaning effect when cleaning hard floor environments such as tiles and wood floors. However, for soft floor environments such as carpets, the brush strips can only scrape the carpet and cannot achieve the effect of patting the carpet. As a result, the roller brush in the relevant technology is somewhat lacking in cleaning effect on soft floor environments such as carpets.

[0062] Therefore, this application provides a roller brush module, a cleaning device, and a cleaning system. The roller brush has brush strips with different spiral parameters, which can simultaneously pat and scrape the surface to be cleaned, thereby improving the cleaning effect.

[0063] The specific technical solutions of this application will be described in detail below with reference to the accompanying drawings, which are not necessarily drawn to scale. Similar or identical reference numerals may be used to designate the same or similar parts in different drawings. The use of similar or identical reference numerals in different drawings does not mean that all drawings including similar or identical reference numerals constitute a single or the same embodiment. The accompanying drawings illustrate the various embodiments discussed in this application in a generalized manner, by way of example and not limitation.

[0064] Please see Figure 1 According to a first aspect of this application, a roller brush module 120 is provided, which is installed in a cleaning device 100. The roller brush module 120 includes at least one roller brush 12. Each roller brush 12 of the roller brush module 120 is rotatable relative to the main unit of the cleaning device 100, thereby sweeping away debris during rotation. The debris is sucked into the debris storage chamber of the main unit by airflow.

[0065] In some embodiments, the roller brush module 120 includes only one roller brush 12. In other embodiments, the roller brush module 120 can be a pair of brushes, including two roller brushes 12. Both roller brushes 12 can be cylindrical, and can be arranged side-by-side with their axes of rotation parallel. In still other embodiments, the two roller brushes 12 can also be sequentially distributed and coaxially arranged along the axial direction (the axis of rotation of the roller brush 12), such as... Figure 1 As shown. Of course, in other embodiments, the roller brush module 120 may also include three, four, six, or other roller brushes 12. Each roller brush 12 in the roller brush module 120 may be cylindrical or conical in shape. This application does not limit the number of roller brushes 12 included in the roller brush module 120, the distribution of the roller brushes 12, or the overall shape of the roller brushes 12.

[0066] Please see Figure 1 In some embodiments, the roller brush module 120 includes two roller brushes 12. Both roller brushes 12 are tapered, meaning that along the axial direction of the roller brush 12, from the power input end to the end, the diameter of the roller brush 12 decreases. When hair is entangled, the tapered shape of the roller brush 12 facilitates the removal of hair from the roller brush 12, improving the anti-entanglement effect of the roller brush 12.

[0067] Since the roller brush 12 is conical, the end with the larger diameter is called the large-diameter end 12A, and the end with the smaller diameter is called the small-diameter end 12B. The diameter of the large-diameter end 12A is larger than that of the small-diameter end 12B. Figure 1 As shown. In some embodiments, the diameter of the large-diameter end 12A of the roller brush 12 is 25–50 mm, such as 27 mm, 30 mm, 32 mm, 35 mm, 40 mm, 43 mm, 47 mm, 49 mm, etc. The diameter of the small-diameter end 12B of the roller brush 12 is 20–45 mm, such as 21 mm, 24 mm, 27 mm, 30 mm, 32 mm, 35 mm, 40 mm, 43 mm, etc. This application does not limit the size of the tapered roller brush 12.

[0068] Two roller brushes 12 are arranged coaxially and sequentially along the axial direction (the axis of rotation of the roller brush 12), and the two roller brushes 12 are symmetrically distributed with their smaller diameter ends 12B facing each other. The conical shape allows the hair on the roller brush 12 to fall off the roller brush 12 along the direction from the larger diameter end 12A to the smaller diameter end 12B. The smaller diameter ends 12B of the two roller brushes 12 are close to each other, so that the hair on the two roller brushes 12 can be gathered in one place and easily sucked away.

[0069] Please see Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 10 The diagrams show structural schematics of the roller brush 12 in the roller brush module 120 according to different embodiments. The roller brush 12 includes a roller portion 1211 and two or more brush strips 1212 connected to the roller portion 1211. The brush strips 1212 can be made of soft rubber or bristles, and the material of each brush strip 1212 can be the same, or the rubber brush strips and the bristle brush strips can be alternately distributed. The material of the brush strips 1212 is not limited in this application.

[0070] The brush strips 1212 of the roller 12 are distributed circumferentially along the roller portion 1211. Each brush strip 1212 is spiral-shaped, and at least two brush strips 1212 have different spiral parameters. When the roller brush 12 rotates to sweep away debris from the surface to be cleaned, the brush strips 1212 with different spiral parameters interact with the surface to be cleaned. The different forces and directions exerted by the brush strips 1212 on the surface to be cleaned not only provide a scraping effect but also a slapping effect, thereby improving the scraping and debris pickup effect on the surface to be cleaned and enhancing the cleaning performance of the cleaning equipment 100 equipped with the roller brush 12.

[0071] The differences in the helical parameters of each brush bar 1212 can be at least one of the following: helical direction, pitch, curvature, and helix angle. Please refer to [link / reference]. Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 10 In some embodiments, the parameter differences among the brush strips 1212 with different helical parameters include the direction of helix, specifically, at least two brush strips 1212 have different helical directions. That is, among the various brush strips 1212 of the roller brush 12, there are brush strips 1212 with a positive helix direction and brush strips 1212 with a negative helix direction. It can be understood that positive and negative helical directions are opposite to each other; when the positive helix direction is clockwise, the negative helix direction is counterclockwise; similarly, when the positive helix direction is counterclockwise, the negative helix direction is clockwise. Of course, the positive and negative helical directions can also be defined as left-handed and right-handed, respectively.

[0072] To easily distinguish the different spiral directions of the brush bars 1212, in the attached diagram, the brush bar with a positive spiral is designated as 1212a, and the brush bar with a negative spiral is designated as 1212b. That is, the reference numeral "1212a" refers only to the brush bar with a positive spiral, the reference numeral "1212b" refers only to the brush bar with a negative spiral, and the reference numeral "1212" refers to all brush bars regardless of their spiral direction. The description of "brush bar 1212" applies to both the positive spiral brush bar 1212a and the negative spiral brush bar 1212b.

[0073] Please see Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 10In some embodiments, the number of brush strips 1212 is even, specifically 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, etc. Of the even number of brush strips 1212, half of the brush strips 1212 have a clockwise spiral direction, and the other half have a counterclockwise spiral direction.

[0074] In some embodiments, the positive spiral brush bar 1212a and the negative spiral brush bar 1212b may have different parameters in at least one of the following: pitch, curvature, and helix angle. In other embodiments, the positive spiral brush bar 1212a and the negative spiral brush bar 1212b may be made of different materials. More combinations of the positive spiral brush bar 1212a and the negative spiral brush bar 1212b are not exhaustive here. In some embodiments, the positive spiral brush bar 1212a and the negative spiral brush bar 1212b differ only in their spiral direction; their pitch, curvature, helix angle, and material are the same. Therefore, each brush bar 1212 can be integrally formed with the roller portion 1211, reducing manufacturing difficulty.

[0075] Positive spiral brush strips 1212a and negative spiral brush strips 1212b are alternately arranged circumferentially along the roller section 1211. A gap is formed between adjacent positive spiral brush strips 1212a and negative spiral brush strips 1212b. Debris on the surface to be cleaned is swept into this gap by the brush strips 1212a and then drawn into the cleaning device 100 by airflow. The number of positive spiral brush strips 1212a and negative spiral brush strips 1212b can both be one. For example, both positive spiral brush strips 1212a and negative spiral brush strips 1212b extend in a spiral shape on the outer surface of the roller section 1211, with a winding angle greater than 360°, ensuring that the brush strips 1212 are always in contact with the debris on the surface to be cleaned when the roller brush 12 rotates. When the winding angle of the brush strip 1212 is greater than 720°, it means that the brush strip 1212 has wound more than two turns on the outer surface of the roller section 1211. This application does not limit the number of brush strips 1212 or the spiral angle.

[0076] In some embodiments, the number of brush strips 1212 is 4, 6, 8, or 10, that is, there are 2 to 5 positive spiral brush strips 1212a and 2 to 5 negative spiral brush strips 1212b. The winding angle of each brush strip 1212 is less than 360°, so that the heads and tails of two adjacent brush strips 1212 have circumferential gaps, which facilitates the suction of waste into the cleaning device 100 through the gaps between two adjacent brush strips 1212.

[0077] In some embodiments, the brush strips 1212a of the positive spiral are evenly distributed along the circumference of the roller portion 1211; the brush strips 1212b of the negative spiral are evenly distributed along the circumference of the roller portion 1211. In other embodiments, the spacing between two adjacent positive spiral brush strips 1212a and two adjacent negative spiral brush strips 1212b may be twice the spacing between adjacent positive spiral brush strips 1212a and negative spiral brush strips 1212b. That is, the brush strips in the roller brush 12 are evenly distributed along the circumference of the roller portion 1211.

[0078] When the roller brush 12 rotates, the spiral direction of the positively spiral brush strip 1212a can be set to be the same as the rotation direction of the roller brush 12; alternatively, the spiral direction of the negatively spiral brush strip 1212b can be set to be the same as the rotation direction of the roller brush 12. In some embodiments, the spiral direction of the positively spiral brush strip 1212a is the same as the rotation direction of the roller brush 12, and the outer edge diameter Q1 of the positively spiral brush strip 1212a is not less than the outer edge diameter Q2 of the negatively spiral brush strip 1212b, such as... Figure 2 and Figure 3 As shown.

[0079] By setting the outer edge diameter Q1 of the positive spiral brush strip 1212a to be no less than the outer edge diameter Q2 of the negative spiral brush strip 1212b, when the outer edge diameter Q1 of the positive spiral brush strip 1212a is the same as the outer edge diameter Q2 of the negative spiral brush strip 1212b, when the roller brush 12 is working, the number of brush strips 1212 in the roller brush 12 that are in contact with the surface to be cleaned at the same time is the same as the number of brush strips 1212 in the roller brush of the same specification but with the same direction of rotation in the related technology. The scraping effect on the surface to be cleaned is the same, but the patting effect on the surface to be cleaned is increased.

[0080] When the outer diameter Q1 of the positive spiral brush bar 1212a is greater than the outer diameter Q2 of the negative spiral brush bar 1212b, please refer to... Figure 2 and Figure 3 In hard surfaces such as tiles and wood floors, the positive spiral brush strip 1212a of the roller brush 12 has a larger outer diameter, allowing it to be close to the ground and pick up debris. Conversely, the negative spiral brush strip 1212b has a smaller outer diameter and is not close to the ground, maintaining a certain gap.

[0081] In environments with loose surfaces such as carpets, the compressed texture allows the counter-spiral brush strip 1212b to contact the carpet surface, meaning it can also adhere to the floor. Since the counter-spiral brush strip 1212b rotates in the opposite direction to the roller brush 12, it effectively beats the carpet, dislodging dust and small particles. This allows the dust and particles to be drawn into the cleaning device 100 by the airflow, thus improving the cleaning effect of the cleaning device 100 on the carpet.

[0082] Please see Figure 2 and Figure 3 In some embodiments, the difference in outer diameter between the positive spiral brush strip 1212a and the negative spiral brush strip 1212b is not less than 0.3mm, that is, Q1-Q2≥0.3mm. This ensures that in hard floor environments such as ceramic tiles and wood floors, the negative spiral brush strip 1212b of the roller brush 12 has a sufficient gap from the ground and does not touch the ground, thus avoiding resistance and interference forces generated after the negative spiral brush strip 1212b contacts the ground, which would interfere with the normal rotation of the roller brush 12.

[0083] Please see Figure 2 and Figure 3 In some embodiments, the thickness b1 of the positive spiral brush strip 1212a is not greater than the thickness b2 of the negative spiral brush strip 1212b, i.e., b1 ≤ b2. This makes the negative spiral brush strip 1212b stronger, increasing its effectiveness in scratching carpets and picking up trash.

[0084] To further improve the cleaning performance of brush strip 1212, please refer to [link / reference needed]. Figure 3 In some embodiments, the brush strip 1212 has protrusions 12121 on its side, located close to the outer edge of the brush strip 1212. These protrusions enhance the litter pickup effect. There are two or more protrusions 12121, spaced apart on the side of the brush strip 1212. Since the brush strip 1212 has two sides, protrusions 12121 can be provided on both sides, resulting in good litter pickup when the roller brush 12 rotates clockwise or counterclockwise. If the roller brush 12 only rotates clockwise or counterclockwise, the protrusions 12121 can be provided only on the litter-facing side of the brush strip 1212.

[0085] In some embodiments, the spiral direction of the positive spiral brush bar 1212a is the same as the rotation direction of the roller brush 12, so the protrusion 12121 can be provided only on the side of the positive spiral brush bar 1212a facing the waste. The protrusion 12121 may not be provided on the negative spiral brush bar 1212b, or the protrusion 12121 may be provided on both sides of the negative spiral brush bar 1212b.

[0086] In related technologies, the structure of a cleaning equipment's roller brush is basically a central hard rubber shaft core plus a soft rubber sheath or bristles. Since the central shaft core is generally made of a rigid material and cannot deform, the height of the rubber sheath or bristles is usually quite high, typically above 15mm, to allow large particles of debris to pass through. This height results in a significant difference in outer diameter between the shaft core and the rubber sheath or bristles (the difference being the height of the rubber sheath or bristles). This leads to a larger cavity in the main brush compartment (the area between the shaft core and the wall of the roller brush mounting cavity), resulting in a lower overall airflow velocity in the main brush compartment and a decrease in the cleaning performance of the cleaning equipment. Reducing the difference in outer diameter between the rubber sheath or bristles and the shaft core, i.e., reducing the height of the rubber sheath or bristles, will cause large particles of debris to get stuck on the roller brush, similarly reducing the cleaning performance of the cleaning equipment.

[0087] Please see Figure 4 , Figure 5 , Figure 6 and Figure 10 The diagrams show structural schematics of the roller brush 12 in different embodiments. In this roller brush 12, the roller portion 1211 has an elastic deformation zone a, which can elastically deform inwards. When encountering large debris (greater than the height of the brush strips 1212), the elastic deformation zone a of the roller portion 1211 deforms, allowing the larger debris to enter the gaps between the brush strips 1212, where it is swept by the rotating brush strips 1212 and sucked into the cleaning device 100 by the airflow. When there is no large debris, the roller portion 1211 returns to its normal state.

[0088] Because the roller portion 1211 has an elastic deformation zone a, it can increase the cleaning space of the brush strip 1212 through its own deformation, without needing to increase the height of the brush strip 1212 to increase the cleaning space as is done in related technologies. Therefore, the height of the brush strip 1212 can be set to be relatively small, ranging from 1 to 15 mm, such as 2 mm, 3 mm, 4 mm, 7 mm, 8.5 mm, 10 mm, 12 mm, 15 mm, etc. When the roller brush 12 provided in this application is assembled on the cleaning device 100, the gap in the main brush chamber is small, which can increase the airflow velocity in the main brush chamber, thereby increasing the suction power and improving the cleaning performance of the cleaning device 100.

[0089] The elastic deformation zone a of the roller portion 1211 can be formed by locally providing an elastic material in the roller portion 1211; the roller portion 1211 can be configured as a thin-walled hollow structure, and the hollow thin wall can undergo elastic deformation. More embodiments of the elastic deformation zone a are not exhaustively described here.

[0090] Please see Figure 5In some embodiments, the roller portion 1211 has a cavity b inside, and the outer cavity wall of the cavity b is made of an elastic material. The cavity b can then serve as an elastic deformation zone a. When encountering larger debris, the outer cavity wall of the cavity b can undergo elastic deformation, allowing the larger debris to be swept by the brush strips 1212 and enter the gaps between the brush strips 1212, without jamming the roller brush 12.

[0091] At least a portion of the brush bar 1212 corresponds to the cavity b. When the overall volume of the debris is large (both length, width and height are large) and the adhesion to the surface to be cleaned is also large (the brush bar 1212 cannot sweep it), the brush bar 1212 can undergo elastic deformation, and the connection between the brush bar 1212 and the roller part 1211 can also undergo elastic deformation, so that the brush bar 1212 can smoothly pass over the debris, thereby preventing the roller brush 12 from being stuck by the debris.

[0092] Since both the elastic deformation zone a of the brush strip 1212 and the roller 1211 can undergo elastic deformation, in some embodiments, the elastic deformation zone a of the brush strip 1212 and the roller 1211 can be designed as an integral structure, for example, both are made of soft rubber material (rubber, silicone, latex, plastic, etc.) and are integrally molded by injection molding.

[0093] Please see Figure 5 , Figure 6 , Figure 6A and Figure 7 The diagram shows a schematic diagram, cross-sectional view, and exploded view of the roller portion 1211 in different embodiments. The roller portion 1211 includes an outer cylinder 12111 and an inner core 12112a. The outer cylinder 12111 is spaced outside the inner core 12112a so that an annular space c is formed between the outer cylinder 12111 and the inner core 12112a. This annular space c can serve as a cavity b inside the roller portion 1211.

[0094] The outer cylinder 12111 is made of elastic material, and the brush strips 1212 are connected to the outer cylinder 12111. When encountering larger pieces of debris, the debris presses inward against the wall of the outer cylinder 12111, causing the wall of the outer cylinder 12111 to undergo elastic deformation. The annular space c between the outer cylinder 12111 and the inner core 12112a provides the deformation space for the outer cylinder 12111. The debris can then pass smoothly through the brush strips 1212 and enter the gaps between the brush strips 1212.

[0095] In some embodiments, both the brush strip 1212 and the outer cylinder 12111 are made of elastic materials, and can be designed as an integral structure. For example, both can be made of soft rubber materials (rubber, silicone, latex, plastic, etc.) and integrally molded by injection molding. The outer cylinder 12111 is elastic and has a certain degree of rigidity, which can maintain the cylindrical structure without external force and maintain an annular space c with equal spacing between it and the inner core 12112a.

[0096] The inner core 12112a can be a rigid structure capable of transmitting power from an external power source, thereby driving the entire roller brush 12 to rotate. Alternatively, the inner core 12112a can be a hollow structure, fitted onto a rotating shaft to drive both the outer cylinder 12111 and the brush strip 1212 to rotate. This application does not limit the specific structure of the inner core 12112a.

[0097] Please see Figure 5 In some embodiments, the inner core 12112a serves as a drive shaft, transmitting power from an external power source. The inner core 12112a can be made of metal or plastic. The outer cylinder 12111 and the support rib 12113 can be fixedly connected to the inner core 12112a by bonding or welding; when the inner core 12112a is made of plastic, the outer cylinder 12111 and the support rib 12113 can also be integrally molded with the inner core 12112a by injection molding, wherein the hardness and rigidity of the inner core 12112a are greater than those of the support rib 12113 and the outer cylinder 12111.

[0098] Please see Figure 6 , Figure 6A and Figure 7 In some embodiments, the inner core 12112a is a hollow inner cylinder 12112. Correspondingly, the roller brush 12 also includes a support shaft 122, at least a portion of which extends into the cavity of the inner cylinder 12112 and is drive-connected to the inner cylinder 12112. The support shaft 122 and the inner cylinder 12112 can be drive-connected by means of bonding, interference fit, fastener connection, etc. The support shaft 122 transmits power from an external power source, driving the inner cylinder 12112 to rotate, which in turn drives the outer cylinder 12111 and the brush strip 1212 to rotate together.

[0099] In some embodiments, the support shaft 122 and the inner cylinder 12112 are circumferentially limited by a concave-convex structure. This can be achieved by providing one or more slots d on the inner cylinder 12112 wall, and correspondingly providing one or more protrusions e on the outer surface of the support shaft 122, with the protrusions e embedded in the slots d, such as... Figure 7As shown, this circumferentially limits the support shaft 122 and the inner cylinder 12112, ensuring that there is no relative displacement between them in the circumferential direction. In some embodiments, one or more locking protrusions e can be provided on the cylinder wall of the inner cylinder 12112, and one or more locking grooves d can be provided on the outer side of the support shaft 122, with the locking protrusion e embedded in the locking groove d. In other embodiments, locking protrusions e and locking grooves d can be provided on both the cylinder wall of the inner cylinder 12112 and the outer side of the support shaft 122, with the locking protrusion e embedded in the locking groove d. The above-mentioned concave-convex structure can not only circumferentially limit the support shaft 122 and the cylinder wall of the inner cylinder 12112, but also axially limit the support shaft 122 and the cylinder wall of the inner cylinder 12112 during assembly, providing feedback to the operator that the assembly is in place.

[0100] In some embodiments, the support shaft 122 and the outer cylinder 12111 are circumferentially limited by a concave-convex structure. This can be achieved by providing one or more slots d on the outer cylinder 12111 wall, and correspondingly providing one or more protrusions e on the outer side of the support shaft 122, with the protrusions e embedded in the slots d, such as... Figure 7 As shown, this circumferentially limits the support shaft 122 and the outer cylinder 12111, ensuring that there is no relative displacement between them in the circumferential direction. In some embodiments, one or more locking protrusions e can be provided on the wall of the outer cylinder 12111, and one or more locking grooves d can be provided on the outer side of the support shaft 122, with the locking protrusion e embedded in the locking groove d. In other embodiments, locking protrusions e and locking grooves d can be provided on both the wall of the outer cylinder 12111 and the outer side of the support shaft 122, with the locking protrusion e embedded in the locking groove d. The above-mentioned concave-convex structure can not only circumferentially limit the support shaft 122 and the wall of the outer cylinder 12111, but also axially limit the support shaft 122 and the wall of the inner cylinder 12112 during assembly, providing feedback to the operator that the assembly is in place.

[0101] Please see Figure 7 and Figure 9 In some embodiments, one of the support shaft 122 and the inner cylinder 12112 is provided with an axially extending guide strip g, and the other is provided with an axially extending guide groove f. The guide strip g is embedded in the guide groove f and plays a guiding role when the support shaft 122 and the inner cylinder 12112 are assembled.

[0102] Considering that brush strip 1212 needs to maintain a certain pressure on the surface to be cleaned during operation to improve the cleaning effect of attached debris, please refer to... Figure 6A and Figure 8In some embodiments, the roller portion 1211 further includes two or more support ribs 12113, which are circumferentially spaced in the annular space c. The two ends of each support rib 12113 are connected to the outer cylinder 12111 and the inner core 12112a, respectively, to divide the annular space c into several cavities b. The number of support ribs 12113 can be 3 to 10. Each support rib 12113 is equally spaced within the annular space c.

[0103] By setting support ribs 12113 to connect the outer cylinder 12111 and the inner core 12112a, the support ribs 12113 can stably support the outer cylinder 12111, allowing the outer cylinder 12111 to maintain its cylindrical structure without external force, and maintaining an annular space c with equal spacing between it and the inner core 12112a. Furthermore, due to the support of the support ribs 12113, the brush strip 1212 can apply a certain amount of pressure to the surface to be cleaned.

[0104] The support rib 12113 can be made of a rigid material, such as rigid plastic, carbon fiber, wood, or metal. In some embodiments, the support rib 12113 can also be made of an elastic material, and the support rib 12113 can be integrally formed with the outer cylinder 12111 and the brush strip 1212. Because the support rib 12113 is made of an elastic material, when the roller brush 12 encounters large debris, the debris squeezes the outer cylinder 12111 and the brush strip 1212 inward, and the support rib 12113 can adaptively deform, ensuring that the outer cylinder 12111 can bend and deform inward. After the debris leaves the outer cylinder 12111, the support rib 12113 can support the outer cylinder 12111 to quickly return to its initial state.

[0105] Please see Figure 8 In some embodiments, at least a portion of the support rib 12113 is radially inclined relative to the roller portion 1211, which can guide the outer cylinder 12111 to bend and deform inward when the outer cylinder 12111 is subjected to external force. The support rib 12113 may be radially inclined entirely relative to the roller portion 1211, or only the middle portion may be radially inclined relative to the roller portion 1211.

[0106] exist Figure 8In the illustrated embodiment, the support rib 12113 can be sequentially divided into three segments: a first segment 121131, connecting the second segment 121132 and the inner wall of the outer cylinder 12111, with the first segment 121131 parallel to the radial direction of the roller portion 1211; a second segment 121132, connecting the first segment 121131 and the third segment 121133, extending circumferentially along the roller portion 1211; and a third segment 121133, connecting the second segment 121132 and the outer wall of the inner core 12112a, also parallel to the radial direction of the roller portion 1211, and staggered from the first segment 121131 in the circumferential direction of the roller portion 1211. The support rib 12113 restricts the range of movement of the outer cylinder 12111, facilitating the rapid recovery of the outer cylinder 12111.

[0107] On the one hand, since the radial dimension of the first segment 121131 in the roller section 1211 is smaller than the width of the annular space c, and the second segment 121132 extends circumferentially along the roller section 1211 and does not obstruct the movement of the first segment 121131, when the outer cylinder 12111 is subjected to external force, the point of force application of the outer cylinder 12111 and the first segment 121131 at the point of force application can move together radially along the roller section 12111 towards the direction where the inner core 12112a is located. On the other hand, since the included angle between the first segment 121131, the second segment 121132, and the third segment 121133 is large, that is, the bending degree of the support rib 12113 is large, the support rib 12113 has a large extension space, allowing the outer cylinder 12111 to move relative to the inner core 12112a circumferentially along the roller section 1211. In other words, the outer cylinder 12111 can move radially relative to the inner core 12112a along the roller section 1211, and can also move circumferentially relative to the inner core 12112a along the roller section 1211, thus adapting to waste of various shapes and sizes.

[0108] In some embodiments, the outer cylinder 12111, inner cylinder 12112, and brush strip 1212 can be integrally molded. For example, the outer cylinder 12111, inner cylinder 12112, and brush strip 1212 are all made of soft rubber, and are integrally molded by injection molding to form the brush body 121. In embodiments where the roller brush 12 has a support rib 12113, the outer cylinder 12111, support rib 12113, inner cylinder 12112, and brush strip 1212 can be integrally molded to form the brush body 121. That is, the roller brush 12 can be separated into two parts: the brush body 121 and the support shaft 122, such as... Figure 6 and Figure 6A As shown. The roller brush 12 has a simple structure and a simple assembly process.

[0109] Please see Figure 6AIn some embodiments, the brush body 121 is open at only one end (hereinafter referred to as open end 121A), which facilitates the assembly of the support shaft 122. The other end of the brush body 121 is a closed structure (hereinafter referred to as closed end 121B). In some embodiments, the inner cylinder 12112 and the outer cylinder 12111 can be connected at the closed end 121B to ensure the structural strength of the closed end 121B.

[0110] Please see Figure 6A and Figure 9 In some embodiments, the axial dimension of the inner cylinder 12112 is smaller than that of the outer cylinder 12111. Correspondingly, the support shaft 122 is configured as a stepped shaft, including a first shaft segment 1221 with a smaller shaft diameter and a second shaft segment 1222 with a larger shaft diameter. The first shaft segment 1221 extends into the cavity of the inner cylinder 12112, and the second shaft segment 1222 abuts against the inner wall of the outer cylinder 12111. By configuring the support shaft 122 as a stepped shaft structure, the support shaft 122 can simultaneously support both the outer cylinder 12111 and the inner cylinder 12112. One end of the brush body 121 is supported by the support shaft 122, and the other end is connected to the outer cylinder 12111 via the inner cylinder 12112 to ensure structural strength.

[0111] Please see Figure 10 , Figure 11 and Figure 12 In some embodiments, the roller brush 12 further includes a felt 123, which is sleeved on the support shaft 122. That is, the roller brush 12 can be disassembled into three parts: the brush body 121, the support shaft 122, and the felt 123, as shown below. Figure 11 As shown in Figure 11, the felt 123 can be a comb structure with a ring of bristles 1231 around its circumference. The bristles 1231 can prevent the hair at the end of the roller brush 12 from getting tangled.

[0112] Please see Figure 11 In some embodiments, the support shaft 122 may further include a third shaft segment 1223, with the first shaft segment 1221, the second shaft segment 1222, and the third shaft segment 1223 arranged sequentially along the axial direction of the support shaft 122. The shaft diameter of the third shaft segment 1223 is smaller than that of the second shaft segment 1222. The felt 123 is tightly fitted onto the third shaft segment 1223 and is axially limited by the shoulder formed by the third shaft segment 1223 and the second shaft segment 1222. The end of the outer cylinder 12111 can abut against the felt 123, thereby sealing the opening of the outer cylinder 12111. That is, the opening end 121A of the brush body 121 is sealed by the felt 123 and the support shaft 122 together, preventing dust and small particles from entering the inner cavity of the brush body 121. To further improve the sealing effect, sealant can be applied to the contact points between the brush body 121 and the support shaft 122 and the felt 123, or the brush body 121 and the support shaft 122 can be made into an integrated structure by means of insert injection molding or other methods.

[0113] Please see Figure 12A In some embodiments, the support shaft 122 is provided with a transmission shaft hole 1224 inside. The transmission shaft hole 1224 can be a prism-shaped groove, a cross-shaped groove, a plum blossom-shaped hole, a spline hole, etc. The transmission shaft hole 1224 can be adapted to the output shaft of an external drive component, thereby transmitting the power of the external drive component.

[0114] Please see Figure 13 According to a second aspect of this application, a cleaning device 100 is provided, including a device body 110 and a roller brush module 120 as described in the first aspect, wherein each roller brush 12 of the roller brush module 120 is rotatably mounted on the device body 110.

[0115] For details, please refer to Figure 13 , Figure 14 , Figure 15 and Figure 15A The main body 110 of the equipment is provided with a roller brush mounting cavity 1111 and a waste storage cavity 1112, which are connected to each other. The roller brush mounting cavity 1111 and the waste storage cavity 1112 can be a cavity shell independent of the main body 110 of the equipment, or they can be recessed spaces inside the main body 110 of the equipment. The specific implementation structure is not limited in this application.

[0116] Please see Figure 14 , Figure 15 and Figure 15A In some embodiments, the roller brush mounting cavity 1111 and the waste storage cavity 1112 are connected by a connecting channel 1113. The connecting channel 1113 can be a section of pipe or a channel inside the main body 110 of the equipment. In some embodiments, the connecting channel 1113 is a flexible hose, which can be bent to easily adapt to the compact space inside the main body 110 of the equipment, and can absorb manufacturing and installation errors of the roller brush mounting cavity 1111 and the waste storage cavity 1112, ensuring the sealing between the roller brush mounting cavity 1111, the connecting channel 1113 and the waste storage cavity 1112.

[0117] Only one roller brush 12 can be installed in the roller brush mounting cavity 1111; in other embodiments, roller brushes 12 can also be installed in pairs in the roller brush mounting cavity 1111, such as... Figure 13 and Figure 14As shown. Each roller brush 12 is rotatably mounted in the roller brush mounting cavity 1111. The shape of the roller brush mounting cavity 1111 can be adaptively designed according to the form of the roller brush 12. For example, if the roller brush 12 is conical, then the roller brush mounting cavity 1111 can also be approximately conical. The opening of the roller brush mounting cavity 1111 faces outward, and the roller brush 12 is exposed through the opening of the roller brush mounting cavity 1111, thereby being able to contact the surface to be cleaned and clean the surface. The opening of the roller brush mounting cavity 1111 can be smaller than the cross-section of the roller brush 12. That is to say, the projection of the opening of the roller brush mounting cavity 1111 in the height direction partially coincides with that of the roller brush 12, so that the opening of the roller brush mounting cavity 1111 can play a certain limiting role in the roller brush 12, preventing the roller brush 12 from detaching from the roller brush mounting cavity 1111.

[0118] Please see Figure 13 and Figure 14 In some embodiments, the roller brush module 120 includes two conical roller brushes 12, which are symmetrically mounted in the roller brush mounting cavity 1111 with their smaller diameter ends 12B facing each other. The connection between the waste storage cavity 1112 and the roller brush mounting cavity 1111 is opposite to the position of the smaller diameter ends 12B of the two roller brushes 12. Because the roller brushes 12 are conical, the conical shape allows hair, debris, etc., on the roller brushes 12 to fall off along the direction from the larger diameter end 12A to the smaller diameter end 12B. The smaller diameter ends 12B of the two roller brushes 12 are close to each other, so that the hair on the two roller brushes 12 can be gathered at one place and concentratedly sucked away from the connection between the waste storage cavity 1112 and the roller brush mounting cavity 1111.

[0119] Please see Figure 13 and Figure 16 In some embodiments, the device body 110 includes a base 111 and a brush cover 112. A roller brush mounting cavity 1111 is disposed within the base 111, and the brush cover 112 covers the opening of the roller brush mounting cavity 1111. The brush cover 112 is detachably connected to the base 111, for example, via screws, snap-fit ​​structures, spring pins, or other detachable connections. The brush cover 112 has a through-hole 1121 through which the roller brush 12 is exposed. The brush cover 112 protects the roller brush 12 and limits its movement, preventing it from detaching from the roller brush mounting cavity 1111. Because of the brush cover 112, the opening of the roller brush mounting cavity 1111 can be enlarged; for example, the opening of the roller brush mounting cavity 1111 can be no smaller than the cross-sectional dimension of the roller brush 12. Therefore, after the brush cover 112 is removed, the operator can easily remove the roller brush 12 from the roller brush mounting cavity 1111 for cleaning or replacement.

[0120] Please see Figure 17In some embodiments, the cleaning device 100 further includes a drive member 113, which is connected to the device body 110. The roller brush 12 is installed in the roller brush mounting cavity 1111 and is connected to the drive member 113 in the device body 110 for transmission. The drive member 113 drives the roller brush 12 to rotate.

[0121] The driving component 113 may consist only of a motor or other power unit 1131. For example, the driving component 113 may include one or more power units 1131, with the number of power units 1131 matching the number of roller brushes 12. Each roller brush 12 is independently driven by its corresponding power unit 1131. In other embodiments, one power unit 1131 may drive multiple roller brushes 12. In this case, the driving component 113 may also include a transmission unit 1132, which is connected to the power unit 1131. The transmission unit 1132 transmits the torque output by the power unit 1131 and outputs the torque through multiple output components, which are respectively connected to multiple roller brushes 12.

[0122] Please see Figure 17 In some embodiments, the roller brush module 120 includes two roller brushes 12. Correspondingly, the transmission unit 1132 includes a transmission shaft 11321, a first transmission unit 11322, and a second transmission unit 11323. The power input end of the first transmission unit 11322 is connected to the power unit 1131, and the power output end is connected to the transmission shaft 11321. The transmission shaft 11321 is parallel to the axial direction of the roller brushes 12, transmitting power to the second transmission unit 11323. The first transmission unit 11322 and the second transmission unit 11323 are respectively connected to the two roller brushes 12, thereby driving the two roller brushes 12 to rotate together. The first transmission unit 11322 and the second transmission unit 11323 can both adopt a reduction mechanism, such as a gear set. The reduction mechanism is connected between the power unit 1131 and the roller brushes 12, reducing the rotational speed of the power output by the power unit 1131, thereby reducing the rotational speed of the roller brushes 12 and increasing the torque, which can thoroughly clean the dirt on the surface to be cleaned.

[0123] In some embodiments, the cleaning components in the cleaning device 100 may consist only of the roller brush 12; for example, the cleaning device 100 may be a sweeper. See also... Figure 13In other embodiments, the cleaning components in the cleaning device 100 may further include at least one of a side brush 150 and a mop 130 (including but not limited to a flat mop 130, a rotary mop 130, a roller mop 130, and a tracked mop 130). As one implementation, the cleaning device 100 may be a sweeping and mopping robot, with a roller brush 12, a side brush 150, and a mop 130 mounted on the main body 110. Specifically: the roller brush 12 is located in the center of the main body 110; the side brush 150 is located at the edge of the main body 110; both the roller brush 12 and the side brush 150 are used to sweep away debris from the surface to be cleaned; the mop 130 is used for mopping the floor and can rotate.

[0124] Please see Figure 13 In some embodiments, the cleaning device 100 further includes a wheel module 160 connected to the device body 110. The wheel module 160 can actively drive the entire cleaning device 100 to move on the surface to be cleaned; that is, the wheel module 160 is equipped with a power source. The wheel module 160 may also consist of only a few rollers. The cleaning device 100 moves on the surface to be cleaned by the user's pushing and pulling actions, and the wheel module 160 rotates accordingly to reduce friction. In some embodiments, there are two wheel modules 160, namely a left drive wheel assembly and a right drive wheel assembly. The left and right drive wheel assemblies are symmetrically arranged along a transverse axis defined by the device body 110.

[0125] Please see Figure 13 In some embodiments, to enable the cleaning device 100 to move more stably or with greater mobility on the ground, the cleaning device 100 may include one or more steering wheels 140. The steering wheels 140 may be driven wheels or drive wheels, and their structural forms include, but are not limited to, casters. The steering wheels 140 may be located in front of the drive wheel assembly. A drive motor provides power to the drive wheel assembly and / or the steering wheels 140.

[0126] In some embodiments, the cleaning device 100 further includes a liquid supply component (not shown in the figure), which is connected to the device body 110. The liquid supply component provides liquid to the mop 130, which wets the mop 130, thereby achieving wet mopping. In some embodiments, the liquid supply component includes at least a liquid storage section and a liquid supply section. The liquid storage section stores liquid, and the liquid supply section provides the liquid stored in the liquid storage section to the mop 130. The liquid supply section can be a plurality of nozzles or a flow channel with multiple outlets. The liquid supply section corresponds to the position of the mop 130; it can be located above the mop 130, or the mop 130 can be located in the movement path of the liquid provided by the liquid supply section. In short, it is sufficient to ensure that the liquid provided by the liquid supply section comes into contact with the mop 130.

[0127] Please see Figure 18According to a third aspect of this application, a cleaning system 1000 is provided, including a base station 200 and a cleaning device 100 as described in the second aspect embodiment above. The cleaning device 100 can be docked with or detached from the base station 200. When the cleaning device 100 is docked with the base station 200, the base station 200 can charge the cleaning device 100, clean the mop 130 of the cleaning device 100, dry the mop 130 of the cleaning device 100, add cleaning liquid to the cleaning device 100, and collect the waste in the waste storage chamber 1112 of the cleaning device 100.

[0128] As one implementation, base station 200 may further include a power supply module (not shown in the figure), which is connected to base station body 210. The power supply module of base station 200 may be a battery capable of storing electrical energy; the battery may be a rechargeable battery or a primary battery, allowing base station 200 to be charged or the battery replaced periodically. The power supply module may also include a transformer charger, capable of converting external power into power that can be input to cleaning device 100 before connecting it to the charging components of cleaning device 100. The power supply module may also be a power cord, serving only a conductive function. The specific structure of the power supply module is not limited in this application.

[0129] The power supply module outputs electrical energy through power supply component 230. For convenient charging, please refer to [link / reference needed]. Figure 19 and Figure 20 In some embodiments, the cleaning device 100 may further include a charging component 170 and a battery (not shown in the figure), with the charging component 170 electrically connected to the battery. When the power supply module of the base station 200 is also a battery, the capacity of the battery in the base station 200 can be greater than the capacity of the battery in the cleaning device 100, allowing the base station 200 to power the cleaning device 100 multiple times on a single charge. Please refer to [link to relevant documentation]. Figure 20 When the cleaning equipment 100 enters the base station body 210, the power supply module 230 is electrically connected to the charging module 170 of the cleaning equipment 100, and the power supply module charges the battery of the cleaning equipment 100 through the charging module 170.

[0130] As another implementation, the base station 200 may further include a liquid injection module connected to the base station body 210. The liquid injection module includes an injection component (not shown) and an injection nozzle 250, such as... Figure 19 As shown. The injection nozzle 250 connects to the injection hole on the cleaning device 100 to replenish the cleaning liquid supply of the cleaning device 100. When the cleaning device 100 enters the base station body 210, the injection module connects to the liquid supply of the cleaning device 100 to replenish the cleaning liquid supply of the cleaning device 100.

[0131] As another implementation, base station 200 may also include a drying module (not shown in the figure), which is connected to base station body 210. The drying module includes a fan and a heating element. The fan blows hot air generated by the heating element outward, thereby drying the cleaned mop 130. The mop 130 can be located in or outside the cleaning tank 220 during drying. When cleaning equipment 100 enters base station body 210, the mop 130 is first cleaned through the cleaning tank 220. After the mop 130 is cleaned, the drying module provides hot airflow to the mop 130 to dry it.

[0132] As another implementation, the base station 200 may further include a dust collection module connected to the base station body 210. The dust collection module includes a dust bag (not shown in the figure) and a dust collection channel 240 communicating with the dust bag. Figure 19 As shown. The debris swept by the roller brush 12 and side brush 150 of the cleaning device 100 enters the debris storage chamber 1112 of the cleaning device 100. When the cleaning device 100 enters the base station body 210, the dust collection channel 240 of the base station 200 is connected to the debris storage chamber 1112 of the cleaning device 100 to draw the dust and debris in the debris storage chamber 1112 of the cleaning device 100 into a dust bag.

[0133] It is understood that the base station 200 may be configured with at least one of the aforementioned cleaning tank 220, power supply module, liquid injection module, drying module, and dust collection module. Other undescribed structures of the base station 200 of the cleaning system 1000 and the cleaning equipment 100 can be referred to the relevant disclosures in the prior art, and this application does not impose any limitations.

[0134] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0135] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0136] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0137] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0138] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0139] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0140] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0141] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A roller brush module, characterized in that, It includes at least one roller brush; the roller brush includes a roller portion and two or more brush strips connected to the roller portion; the two or more brush strips are distributed circumferentially at intervals along the roller portion; each of the brush strips is helical, and at least two of the brush strips have different helical parameters.

2. The roller brush module according to claim 1, characterized in that, At least two of the brush strips rotate in different directions.

3. The roller brush module according to claim 2, characterized in that, The number of brush strips is even; half of the brush strips have a forward spiral direction and the other half have a reverse spiral direction; the forward spiral brush strips and the reverse spiral brush strips are alternately arranged along the circumference of the roller portion.

4. The roller brush module according to claim 3, characterized in that, The brush strips of the positive spiral are evenly distributed along the circumference of the roller portion; the brush strips of the negative spiral are evenly distributed along the circumference of the roller portion.

5. The roller brush module according to claim 3, characterized in that, The direction of rotation of the positive spiral brush bar is the same as the direction of rotation of the roller brush; the outer diameter of the positive spiral brush bar is not less than the outer diameter of the negative spiral brush bar.

6. The roller brush module according to claim 5, characterized in that, The difference in outer edge diameter between the positive spiral brush bar and the negative spiral brush bar is not less than 0.3 mm.

7. The roller brush module according to claim 3, characterized in that, The thickness of the brush bar with a positive spiral is not greater than the thickness of the brush bar with a negative spiral.

8. The roller brush module according to any one of claims 1-7, characterized in that, The roller brush is conical.

9. The roller brush module according to any one of claims 1-7, characterized in that, The roller section has an elastic deformation zone.

10. The roller brush module according to claim 9, characterized in that, The roller section includes an outer cylinder and an inner core. The outer cylinder is spaced outside the inner core so that the annular space between the outer cylinder and the inner core forms the elastic deformation zone. The outer cylinder is made of an elastic material.

11. The roller brush module according to claim 10, characterized in that, The roller section further includes two or more support ribs, which are arranged circumferentially in the annular space, and the two ends of the support ribs are respectively connected to the outer cylinder and the inner core, so as to divide the annular space into several elastic deformation zones.

12. The roller brush module according to claim 11, characterized in that, The support rib is made of elastic material; at least a portion of the support rib is arranged radially inclined relative to the roller portion.

13. The roller brush module according to claim 10, characterized in that, The inner core is a hollow inner cylinder; the roller brush also includes a support shaft, at least a portion of which extends into the cavity of the inner cylinder and is kinetically connected to the inner cylinder.

14. The roller brush module according to claim 13, characterized in that, The axial dimension of the inner cylinder is smaller than that of the outer cylinder; the support shaft is a stepped shaft, including a first shaft section and a second shaft section with a shaft diameter larger than that of the first shaft section. The first shaft section extends into the cavity of the inner cylinder, and the second shaft section abuts against the inner wall of the outer cylinder.

15. The roller brush module according to claim 14, characterized in that, The support shaft is circumferentially limited to the inner cylinder wall by a concave-convex structure; and / or, the support shaft is circumferentially limited to the outer cylinder wall by a concave-convex structure.

16. The roller brush module according to claim 13, characterized in that, One of the support shaft and the inner cylinder wall is provided with an axially extending guide strip, and the other is provided with an axially extending guide groove, the guide strip being embedded in the guide groove.

17. The roller brush module according to claim 13, characterized in that, The roller brush also includes a felt, which is sleeved on the support shaft.

18. The roller brush module according to claim 13, characterized in that, The outer cylinder, the inner cylinder, and the brush strip are integrally formed.

19. The roller brush module according to claim 10, characterized in that, The inner core is a drive shaft that transmits power from an external power source.

20. The roller brush module according to any one of claims 1-7, characterized in that, The brush bar has raised dots on its side.

21. The roller brush module according to any one of claims 1-7, characterized in that, The roller brush module includes two roller brushes; the two roller brushes are distributed sequentially along the axial direction and are coaxially arranged.

22. The roller brush module according to claim 21, characterized in that, Both of the roller brushes are conical, and the two roller brushes are symmetrically distributed with their smaller diameter ends facing each other.

23. A cleaning device, characterized in that, The device includes a main body and a roller brush module as described in any one of claims 1-22, wherein the roller brush of the roller brush module is rotatably mounted on the main body of the device.

24. The cleaning equipment according to claim 23, characterized in that, The main body of the device is provided with a waste storage chamber and a roller brush mounting chamber with the opening facing outward. The waste storage chamber is connected to the roller brush mounting chamber. The roller brush is installed in the roller brush mounting chamber.

25. The cleaning equipment according to claim 24, characterized in that, In the case where the roller brush module includes two conical roller brushes, the two roller brushes are symmetrically installed in the roller brush mounting cavity with their smaller diameter ends facing each other; the connection between the waste storage cavity and the roller brush mounting cavity is opposite to the smaller diameter ends of the two roller brushes.

26. The cleaning equipment according to claim 24, characterized in that, The main body of the device includes a base and a brush cover. The roller brush mounting cavity is located in the base. The brush cover covers the opening of the roller brush mounting cavity and is detachably connected to the base. The brush cover has a through opening through which the roller brush is exposed.

27. A cleaning system, characterized in that, It includes a base station and the cleaning equipment according to any one of claims 23-26, wherein the cleaning equipment can be docked with the base station or driven away from the base station.

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