Rolling brush, rolling brush assembly and cleaning equipment

Abstract

The utility model discloses a rolling brush, rolling brush assembly and cleaning equipment, the rolling brush comprises a cylinder, a first cleaning piece and a second cleaning piece, the first cleaning piece and the second cleaning piece are arranged on the periphery of the cylinder at intervals, the first surface of the first cleaning piece and the second surface of the second cleaning piece are arranged towards the first direction, and the first direction is opposite to the rotating direction of the rolling brush. The outer surface of the cylinder and the reference surface have a reference intersecting line, the first surface and the reference surface have a first intersecting line, the second surface and the reference surface have a second intersecting line, and the length of the first intersecting line is larger than that of the second intersecting line. The intersection point E of the first intersection line and the reference intersection line, the intersection point F of the second intersection line and the reference intersection line, and the arc length of the part of the reference intersection line between the adjacent intersection point E and intersection point F are S, and L1 is larger than or equal to 0.5 S and smaller than S. The first cleaning piece and the second cleaning piece do not influence each other during deformation, so that the contact area between the rolling brush and the ground is integrally increased, and the cleaning effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a roller brush, a roller brush assembly and cleaning equipment. Background Art

[0002] Cleaning equipment such as floor scrubbers and sweeping robots are all equipped with a roller brush assembly. The roller brush of the roller brush assembly is a component that directly contacts the ground, and the mechanical force of the rotation of the roller brush is used to clean the ground.

[0003] In the related art, there is a full-rubber roller brush, which is provided with a plurality of scraping strips on its outer circumference, and the scraping strips are made of soft rubber and have excellent hair cleaning ability. However, in order to avoid interference between adjacent rubber strips, the existing full-rubber roller brush has a wide interval between the rubber strips, resulting in a smaller contact area between the roller brush and the floor during cleaning, which in turn leads to poor cleaning effect. In order to solve this problem, some cleaning equipment adopts a solution of increasing the surface area of ​​the scraping strip on the side close to the ground to increase the ground contact area of ​​the scraping strip. However, this increases the slapping noise of the scraping strip against the ground. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a roller brush that can avoid interference between adjacent rubber strips and increase the ground contact area of ​​the roller brush, thereby effectively improving the cleaning effect.

[0005] The utility model also provides a roller brush assembly having the roller brush and a cleaning device having the roller brush assembly.

[0006] The roller brush according to the first embodiment of the utility model comprises:

[0007] A cylinder, a first cleaning member and a second cleaning member, the first cleaning member and the second cleaning member are arranged on the cylinder along the circumference of the roller brush at intervals from each other, the first cleaning member has a first surface, the second cleaning member has a second surface, a first direction opposite to the rotation direction of the roller brush is defined, and the first surface and the second surface are arranged toward the first direction;

[0008] A reference plane is defined which is perpendicular to the axial direction of the cylinder and passes through the first cleaning member and the second cleaning member, the outer surface of the cylinder and the reference plane have a reference intersection line, the first surface and the reference plane have a first intersection line, the first intersection line and the reference intersection line have an intersection point E, the second surface and the reference plane have a second intersection line, the second intersection line and the reference intersection line have an intersection point F; wherein, the length of the first intersection line is L1, the length of the second intersection line is L2, in every two adjacent first cleaning members and the second cleaning members, the length of the reference intersection line between the intersection point E and the intersection point F is defined as S, and the roller brush satisfies: L1 is greater than L2, and L1 is greater than or equal to 0.5S and less than S.

[0009] The roller brush according to the embodiment of the utility model has at least the following beneficial effects:

[0010] The ground can be continuously cleaned by the first cleaning member and the second cleaning member, and the first cleaning member and the second cleaning member will not collapse on each other after being tipped over by force, thereby increasing the contact area between the roller brush and the ground as a whole and improving the cleaning effect. At the same time, there is no need to increase the surface area of ​​the first cleaning member and the second cleaning member on the side close to the ground, which can reduce the flapping noise and achieve efficient, fast and low-noise cleaning.

[0011] According to some embodiments of the present invention, L1 is greater than or equal to 0.5S and less than or equal to 0.8S.

[0012] According to some embodiments of the present invention, the roller brush satisfies: L2 is greater than or equal to 0.5 and L1 is less than L1.

[0013] According to some embodiments of the present invention, L2 is greater than or equal to 0.5L1 and less than or equal to 0.8L1.

[0014] According to some embodiments of the present invention, a tangent line of the cylinder passing through point E is defined as a first tangent line, a tangent line of the cylinder passing through point F is defined as a second tangent line, an angle between the first intersection line and the first tangent line is defined as a first angle, and an angle between the second intersection line and the second tangent line is defined as a second angle;

[0015] Wherein, the first angle is greater than or equal to 30° and less than or equal to 75°, and / or the second angle is greater than or equal to 30° and less than or equal to 75°.

[0016] According to some embodiments of the present invention, the first cleaning member is distributed in an oblique spiral along the axial direction of the roller brush, and / or the second cleaning member is distributed in an oblique thread along the axial direction of the roller brush.

[0017] According to some embodiments of the present invention, the first cleaning member, the second cleaning member and the barrel are connected to form an integrated structure.

[0018] According to the second embodiment of the utility model, the roller brush assembly comprises a housing and at least one roller brush as described in the above embodiment;

[0019] The shell has an inner cavity, the roller brush is arranged in the inner cavity and is rotatably connected to the shell through the cylinder, and a portion of the roller brush extends out of the inner cavity to abut against the cleaning ground.

[0020] According to some embodiments of the present invention, the minimum distance between the first cleaning member and the wall of the inner cavity is L3, and L3 satisfies: greater than 0 and less than or equal to 3 mm, and / or, the maximum length of the first cleaning member extending from the inner cavity in the radial direction of the roller brush is L4, and L4 satisfies: greater than 0 and less than or equal to 2 mm.

[0021] The cleaning device provided according to the third aspect of the utility model includes the roller brush assembly described in the above embodiment.

[0022] The cleaning device according to the embodiment of the utility model has at least the following beneficial effects:

[0023] By limiting the size of the first cleaning member and the second cleaning member and the size of the circumferential surface of the roller between the two, the rotation of the roller brush can continuously clean the floor through the first cleaning member and the second cleaning member during the forward movement of the cleaning device, and the first cleaning member and the second cleaning member do not affect each other, thereby increasing the overall contact area with the floor and improving the cleaning effect.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0026] Figure 1 This is a structural schematic diagram of a roller brush assembly according to an embodiment of the utility model;

[0027] Figure 2 for Figure 1 The enlarged structural diagram at B in the middle;

[0028] Figure 3 for Figure 1 The enlarged structural diagram at A in the middle;

[0029] Figure 4 A structural schematic diagram of a roller brush according to an embodiment of the utility model;

[0030] Figure 5 for Figure 4A schematic diagram of the cross-sectional structure of the roller brush;

[0031] Figure 6 for Figure 5 Enlarged structural diagram at D in the middle.

[0032] Figure Number:

[0033] 100. Roller brush assembly;

[0034] 10. roller brush; 20. housing; 21. inner cavity;

[0035] 11. cylinder; 12. first cleaning member; 121. convex portion; 122. first surface; 123. third surface; 13. second cleaning member; 131. second surface; 132. fourth surface;

[0036] a, first angle; b, second angle; X, rotation direction; K, first direction; Y1, reference intersection line; Y2, first intersection line; Y3, second intersection line; Q1, first tangent line; Q2, second tangent line; E, intersection point of first intersection line and reference intersection line; F, intersection point of second intersection line and reference intersection line; J, first farthest point; H, second farthest point; S, length of reference intersection line between intersection point E and intersection point F. DETAILED DESCRIPTION

[0037] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0038] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0040] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0041] With the development of technology and the improvement of the quality of life, cleaning equipment that helps with cleaning has been more and more widely used. Common cleaning equipment such as floor scrubbers and sweeping robots all use roller brushes to clean the ground. The mechanical force of the rotating roller brush has a good cleaning effect on garbage. In the prior art, there is a full rubber roller brush, which is provided with a plurality of scraping strips made of a rubber material on its outer periphery. While the roller brush rotates, the plurality of scraping strips scrape the ground at different positions in turn, thereby cleaning the ground.

[0042] However, the existing full rubber roller brushes have a variety of unreasonable structural dimensions:

[0043] For example, the distance between adjacent scraping strips is too close or too far. When the two are set too close, the adjacent scraping strips are easily deformed and collided and fallen over when the roller brush is cleaning the floor, thereby reducing the ground contact area of ​​the roller brush and affecting the cleaning effect. When the two are set too far, the scraping strips cannot be guaranteed to wipe the floor at all times when the roller brush is rotating for cleaning, which still reduces the ground contact area of ​​the roller brush.

[0044] Furthermore, in order to improve the cleaning effect of the roller brush, there is a scheme of enlarging the surface area of ​​the scraper bar close to the ground, thereby increasing the contact area of ​​the scraper bar on the ground. However, the large contact area of ​​a single scraper bar with the ground will increase the noise of the scraper bar hitting the ground.

[0045] Based on this, the present application provides a roller brush assembly 100, see Figures 1 to 3 , Figure 1 A partial structural diagram of the roller brush assembly 100 is shown. Figure 2 and Figure 3 The roller brush assembly 100 includes a housing 20 and a roller brush 10. The housing 20 has an inner cavity 21. The roller brush 10 is disposed in the inner cavity 21 and is rotatably connected to the housing 20. At least a portion of the roller brush 10 extends out of the inner cavity 21 to contact the cleaning floor. Figures 1 to 6 The dotted lines in the figure are auxiliary lines made for the convenience of explanation and do not exist in the structure of the actual roller brush 10.

[0046] Specifically, the roller brush assembly 100 has a cleaning state for cleaning the floor. When the roller brush assembly 100 is in the cleaning state, the roller brush 10 rotates in a circle relative to the shell 20 and moves in a set direction, thereby continuously scraping up garbage on the floor. The garbage enters the inner cavity and is sucked away, thereby completing the cleaning.

[0047] Specifically, see Figures 4 to 5 , Figure 4 An axonometric view of the roller brush 10 is shown. Figure 5The cross-sectional schematic diagram of the roller brush 10 is shown. The roller brush 10 includes a barrel 11 , a first cleaning member 12 and a second cleaning member 13 . The first cleaning member 12 and the second cleaning member 13 are arranged on the barrel 11 along the circumferential direction of the roller brush 10 and are spaced apart from each other.

[0048] The roller brush 10 is rotatably connected to the shell 20 via the barrel 11. Specifically, an axle may be provided inside the barrel 11 to be rotatably connected to the shell 20, or covers may be provided at both ends of the barrel 11 to be rotatably connected to the shell 20. This application does not limit this.

[0049] When the roller brush 10 rotates and cleans the floor, the cylinder 11 rotates, so that the first cleaning member 12 and the second cleaning member 13 contact the floor in turn, scraping off dirt such as water stains and dirt on the floor. The first cleaning member 12 and the second cleaning member 13 can be a full rubber scraper strip structure made of rubber, resin or other materials, which has a certain hardness to ensure the cleaning force. At the same time, when the first cleaning member 12 and the second cleaning member 13 are subjected to the force of the floor, they produce deformation and bending in the opposite direction of the movement direction of the roller brush 10, so as to better fit the floor to clean the floor.

[0050] Reference Figure 4 In this embodiment, the first cleaning member 12 has a first surface 122, and the second cleaning member 13 has a second surface 131, defining a first direction K opposite to the rotation direction X of the roller brush 100, and the first surface 122 and the second surface 131 are arranged toward the first direction K, referring to Figure 6 , define a reference plane that is perpendicular to the axial direction of the cylinder 11 and passes through the first cleaning member 12 and the second cleaning member 13, the outer surface of the cylinder 11 has a reference intersection line Y1 with the reference plane, the first surface 122 has a first intersection line Y2 with the reference plane, the first intersection line and the reference intersection line have an intersection point E, the second surface 131 has a second intersection line Y3 with the reference plane, and the second intersection line has an intersection point F with the reference intersection line.

[0051] It can be understood that the first surface 122 has a length direction and a width direction. Generally, the length direction dimension is larger than the width direction dimension. The length of the first intersection line Y2 can also be considered as the width direction dimension of the first surface 122. The second surface 131 has a length direction and a width direction. The length of the second intersection line Y3 can also be considered as the width direction dimension of the second surface 131.

[0052] Specifically, the length of Y2 is L1, the length of Y3 is L2, and L1 is greater than L2, that is, the width dimension of the first surface 122 is greater than the width dimension of the second surface. In other words, the extension length of the first cleaning member 12 relative to the cylinder 11 is greater than the extension length of the second cleaning member 13 relative to the cylinder 11. The extension length of the first cleaning member 12 or the second cleaning member 13 relative to the cylinder 11 refers to the dimension of the first cleaning member 12 or the second cleaning member 13 extending from one side of the cylinder 11 to the side of the ground.

[0053] In this way, when the cylinder 11 rotates, the two cleaning members of different lengths cooperate with each other, and the second cleaning member 13 can continue to clean the places that the first cleaning member 12 cannot reach. For example, when the cleaning floor is a carpet surface, the first cleaning member 12 is longer and can extend into the interior of the carpet for cleaning, and the second cleaning member 13 is shorter and can clean the carpet surface, so that the overall cleaning effect is better. For example, when the cleaning floor is a hard floor, the first cleaning member 12 is longer, and the degree of bending and deformation caused by it after contacting the ground is relatively large, while the second cleaning member 13 is shorter, and the degree of bending and deformation caused by it after contacting the ground is relatively small.

[0054] When there is a raised garbage block on the ground, the first cleaning member 12 or the second cleaning member 13, which is cleaning to the position, is blocked by the raised garbage block in front and is easily deformed toward the rear end of the movement direction of the roller brush 10, thereby deforming and tilting toward the second cleaning member 13 or the first cleaning member 12 near the rear side. Figure 5 , Figure 5 FIG. 1 is a cross-sectional view of the roller brush assembly 100 , and the arrow direction X in the figure indicates the rotation direction of the roller brush 10 when working.

[0055] When the first cleaning member 12 is tilted in the reverse direction by the action of the ground, the first cleaning member 12 will be deformed from the intersection E, and the first surface 122 will tilt along the first direction K toward the second cleaning member 13 at the rear. Similarly, when the second cleaning member 13 is tilted in the reverse direction by the action of the ground, the second cleaning member 13 will be deformed from the intersection F, and the second surface 131 will tilt along the first direction K toward the first cleaning member 12 at the rear. When the first cleaning member 12 or the second cleaning member 13 tilts and contacts the adjacent second cleaning member 13 or the first cleaning member 12, the contact area between the first cleaning member 12 or the second cleaning member 13 at the rear and the ground will be affected, thereby reducing the overall ground contact area of ​​the roller brush 10 and deteriorating the cleaning effect.

[0056] Therefore, the length of the arc of the reference intersection line Y1 between the intersection point E and the intersection point F is defined as S. In this embodiment, L1 is set to be greater than or equal to 0.5S and less than S, which can avoid mutual contact and interference between the first cleaning member 12 and the second cleaning member 13, thereby ensuring the ground contact area of ​​the roller brush 10. The following is analyzed from the perspective of the deformation of the first cleaning member 12 under stress:

[0057] The arc length S of the reference intersection line Y1 between the intersection point E and the intersection point F, that is, S is the arc length of the outer surface of the cylinder 11 between the first surface 122 and the second surface 131 in the circumferential direction. When the first cleaning member 12 is subjected to force against the ground, it falls toward the second cleaning member 13 at the rear side along the first direction K. Even if the first cleaning member 12 falls completely, from the perspective of the orthographic projection toward the reference surface, Y2 of the first cleaning member 12 does not completely cover S, and the other end point of Y2, i.e., the first farthest point J, cannot fall within the projection area of ​​the second cleaning member 13. From a three-dimensional perspective, the first surface 122 of the first cleaning member 12 will not completely cover the circumferential portion of the cylinder 11 between the first cleaning member 12 and the second cleaning member 13, that is, the first cleaning member 12 cannot contact the second cleaning member 13 at the rear side, and cannot press the second cleaning member 13 at the rear side. As the roller brush 10 rotates, the second cleaning member 13 at the rear side can normally clean the ground in front, ensuring normal grounding and improving the cleaning effect.

[0058] Naturally, after the shorter second cleaning member 13 is subjected to force against the ground, it falls toward the first cleaning member 12 at the rear side along the first direction K. Even if the second cleaning member 13 falls completely, from the perspective of the orthographic projection toward the reference plane, Y3 of the second cleaning member 13 does not completely cover S, and the other end point of Y3, i.e., the second farthest point H, cannot fall within the projection area of ​​the first cleaning member 12. From a three-dimensional perspective, the second surface 131 of the second cleaning member 13 will not completely cover the circumferential portion of the barrel 11 between the second cleaning member 13 and the first cleaning member 12, i.e., the second cleaning member 13 cannot contact the first cleaning member 12 at the rear side, and cannot press the first cleaning member 12 at the rear side, so that as the roller brush 10 rotates, the first cleaning member 12 at the rear side can normally clean the ground in front, ensuring normal grounding and improving the cleaning effect.

[0059] In this way, in the present application, the first cleaning member 12 and the second cleaning member 13 can continuously clean the floor, and the first cleaning member 12 and the second cleaning member 13 will not overturn the other due to one falling over, thereby increasing the overall contact area with the floor and improving the cleaning effect. At this time, there is no need to increase the single ground contact surface area of ​​the first cleaning member 12 and the second cleaning member 13, and efficient, fast and low-noise cleaning can be achieved.

[0060] Further, L1 of the first cleaning member 12 may be 0.5S, 0.6S, 0.7S, 0.8S, 0.9S, 0.99S, etc. Optionally, L1 is greater than or equal to 0.5S and less than or equal to 0.8S. In one optional embodiment, L1 is 0.8S.

[0061] In some embodiments, L2 is greater than or equal to 0.5L1 and less than L1, and L2 can be 0.5L1, 0.6L1, 0.7L1, 0.8L1, 0.9L1, 0.99L1, etc., so that the width dimension of the second surface 131 of the second cleaning member 13 is greater than or equal to half of the width dimension of the first surface 122 of the first cleaning member 12, and less than the width dimension of the first surface 122 of the first cleaning member 12.

[0062] In this way, even if the second cleaning member 13 falls over, the second surface 131 will not be able to contact the first cleaning member 12 at the rear side, and will not be able to press the first cleaning member 12 at the rear side. At the same time, the width of the second surface 131 is limited to be larger than half of the width of the first surface 122, ensuring that the second cleaning member 13 is not too short.

[0063] It can be understood that when cleaning places such as carpets, the first cleaning member 12 and the second cleaning member 13 are set to be one long and one short, which can perform deep and shallow cleaning on special surfaces such as carpets. When cleaning other relatively hard floors, by limiting the length relationship between the second cleaning member 13 and the first cleaning member 12, the second cleaning member 13 will not be unable to contact the ground due to being too short, thereby affecting the cleaning effect. When the first cleaning member 12 abuts against the ground to produce a first deformation, the shorter second cleaning member 13 and the ground will correspondingly produce a second deformation that is smaller than the first deformation.

[0064] At the same time, the circumferential length S of the portion of the cylinder 11 between the first surface 122 and the second surface 131 is not too large compared to the width of the second surface, so that the first cleaning members 12 and the second cleaning members 13 are arranged more densely. When the roller brush 10 rotates, by ensuring the density of the cleaning members (including the first cleaning members 12 and the second cleaning members 13) arranged on the periphery of the cylinder 11, the first cleaning members 12 and the second cleaning members 13 can provide a stronger rotational force during the rotation of the cylinder 11, thereby ensuring the intensity of the rotating airflow in the inner cavity 21 where the roller brush 10 is located, so as to better roll up the garbage and increase the cleaning efficiency.

[0065] In some embodiments, the roller brush 10 satisfies: L2 is greater than or equal to 0.5L1 and less than or equal to 0.8L1. In an optional example, L1=0.8S, L2=0.8L1. At this time, L2=0.64S. In this way, the first cleaning member 12 and the second cleaning member 13 do not need to be separately set to increase the surface of a certain surface, but can be set to regular rectangular strips to form a scraping strip structure, which can not only ensure better cleaning efficiency but also reduce noise.

[0066] It can be understood that in other embodiments, the first cleaning member 12 and the second cleaning member 13 may also be irregular shapes, which is not limited in the present application.

[0067] In some embodiments, reference Figure 4 The first cleaning member 12 also has a third surface 123. The first surface 122 and the third surface 123 are arranged opposite to each other, and along the rotation direction X of the roller brush 10, the third surface 123 is arranged upstream of the first surface 122. The first surface 122 points to the direction of the third surface 123, which is the thickness direction of the first cleaning member 12. When the roller brush 10 moves with the roller brush assembly 100, the third surface 123 of the first cleaning member 12 first contacts the ground. The first surface 122 forms the back side of the first cleaning member 12, and the third surface 123 forms the front side of the first cleaning member 12.

[0068] The second cleaning member 13 further has a fourth surface 132. The second surface 131 and the fourth surface 132 are arranged opposite to each other. The first surface 122 and the second surface 131 face the same side and along the rotation direction X of the roller brush 10. The fourth surface 132 is arranged upstream of the second surface 131. The second surface 131 points in the direction of the fourth surface 132, which is the thickness direction of the second cleaning member 13. When the roller brush 10 moves with the roller brush assembly 100, the fourth surface 132 of the second cleaning member 13 first contacts the ground. The second surface 131 forms the back side of the second cleaning member 13, and the fourth surface 132 forms the front side of the second cleaning member 13.

[0069] It can be understood that when the rotation direction X of the roller brush 10 is clockwise, the first direction K is counterclockwise, starting with the roller brush 10 rotating along X and one of the first cleaning members 12 first abutting the ground. As the roller brush 10 rotates, the third surface 123 of the first cleaning member 12 abuts the ground, and then, the first cleaning member 12 drives the third surface 123 and the first surface 122 to rotate to the front of the roller brush 10, and then the fourth surface 132 of the second cleaning member 13 abuts the ground. Then, as the roller brush 10 rotates, the second cleaning member 13 drives the second surface 131 and the fourth surface 132 to rotate to the front of the roller brush 10, and then, as the roller brush 10 rotates, the third surface 123 of the next first cleaning member 12 abuts the ground, and so on.

[0070] In the present application, the maximum dimension of the first surface 122 in its width direction is considered to be L1, and the maximum dimension of the second surface 131 in its width direction is considered to be L2. When the first cleaning member 12 is tilted by force, the first surface 122 tilts toward the side close to the rear second surface 131 and does not contact the rear second cleaning member 13, it is considered that no other part of the first cleaning member 12 is in contact with the second cleaning member 13. Similarly, when the second cleaning member 13 is tilted by force, the second surface 131 tilts toward the side close to the rear first surface 122 and does not contact the rear first cleaning member 12, it is considered that no other part of the second cleaning member 13 is in contact with the first cleaning member 12.

[0071] It can be understood that the front and rear in this article are both defined as the front when the roller brush 10 rotates and moves forward in the X direction.

[0072] In one embodiment, the first cleaning member 12 and / or the second cleaning member 13 are arranged obliquely relative to the outer surface of the barrel 11. At this time, the first surface 122 and the third surface 123, and / or the second surface 131 and the fourth surface 132 are arranged obliquely relative to the outer surface of the barrel 11, so that the first cleaning member 12 is inclined when in contact with the ground, and / or the second cleaning member 13 is inclined when in contact with the ground, which can form a shoveling effect on the ground to better clean the garbage.

[0073] In one embodiment, the tangent line passing through point E is defined as the first tangent line Q1, the angle between Y2 and the first tangent line Q1 is the first angle a, the tangent line passing through point F is defined as the second tangent line Q2, the angle between Y3 and the second tangent line Q2 is the second angle b. Figure 6 , Figure 6 The angle a between Y2 and S1 and the angle b between Y3 and S2 are shown in the figure. When the first cleaning member 12 is tilted relative to the outer surface of the barrel 11, a is an acute angle. When the second cleaning member 13 is tilted relative to the outer surface of the barrel 11, b is an acute angle.

[0074] Furthermore, the first angle a is greater than or equal to 30° and less than or equal to 75°, and / or the second angle b is greater than or equal to 30° and less than or equal to 75°.

[0075] The first angle a can be 30°, 35°, 40°, 40°, 50°, 55°, 60°, 65°, 70°, 75°, etc., and the second angle b can be 30°, 35°, 40°, 40°, 50°, 55°, 60°, 65°, 70°, 75°, etc. to ensure the effect of removing ground garbage.

[0076] Optionally, the first angle a can be 45° and the second angle b can be 55°, so that the first cleaning member 12 has a smaller angle when in contact with the ground and can fit better with the ground, and the second cleaning member 13 has a larger angle when in contact with the ground. Different cleaning effects are provided by forming different contact angles with the ground, thereby removing garbage of different sizes.

[0077] In one embodiment, the first cleaning member 12 is provided with a plurality of protrusions 121. Specifically, the plurality of protrusions are provided on the third surface 123, so that when the third surface 123 contacts the ground, dust and hair on the ground, such as dust and hair hidden in a carpet, can be effectively scraped off, thereby improving the cleaning effect.

[0078] The convex portion 121 may be an arc-shaped convex point or other structure, and a plurality of convex portions 121 may be arranged on the side of the third surface 123 away from the barrel 11 along the length direction of the first cleaning member 12. During the cleaning process, the convex portions 121 are close to the ground, and the hair may be wrapped around the convex portions 121, thereby better cleaning the hair on the ground.

[0079] In one embodiment, the minimum spacing L3 between the first cleaning member 12 and the cavity wall of the inner cavity 21 satisfies greater than 0 and less than or equal to 3 mm, and / or, the protruding portion of the first cleaning member 12 from the inner cavity 21 forms a contact portion with the ground, and the maximum length of the contact portion in the radial direction of the roller brush 10 is L4, which satisfies greater than 0 and less than or equal to 2 mm.

[0080] For example, L3 can be 0.1mm, 0.5mm, 1mm, 1.5mm, 2.0mm, 2.5mm, 3mm, etc. Optionally, L3 can be 1.5mm, which will not affect the rotation of the roller brush 10 in the inner cavity 21, but also can ensure the sealing of the inner cavity 21, avoiding the formation of a large gap between the first cleaning member 12 and the inner cavity 21, resulting in dust leakage or air leakage.

[0081] It can be understood that the first cleaning member 12 and the second cleaning member 13 are of different lengths. Therefore, when cleaning the floor, the distances between the first cleaning member 12 and the second cleaning member 13 and the floor are different. Generally, the dimension of the first cleaning member 12 abutting the floor is larger than the dimension of the second cleaning member 13 abutting the floor. L4 can be 0.1mm, 0.5mm, 1mm, 1.5mm, 2.0mm, etc.

[0082] Optionally, L4 of the first cleaning member 12 abutting against the ground can be 0.5mm, which ensures reasonable contact between the first cleaning member 12 and the ground while allowing the shorter second cleaning member 13 to contact the ground to ensure the cleaning effect. At the same time, it avoids excessive contact between the roller brush 10 and the ground, which causes greater friction and the risk of tipping over.

[0083] In one embodiment, the first cleaning member 12 is distributed in an oblique spiral along the axial direction of the roller brush 10 . At this time, the extended spiral line of the first cleaning member 12 along the axial direction of the roller brush 10 is the length direction of the first cleaning member 12 .

[0084] Through the spiral distribution of the first cleaning member 12, the first cleaning member 12 can extend to multiple radial positions on the outer surface of the barrel 11. During the rotation of the roller brush 10, the first cleaning member 12 can rotate to different positions to contact the ground, forming a larger closed surface that contacts the ground for a longer time, thereby achieving long-term cleaning of the ground, thereby improving the overall cleaning efficiency.

[0085] It can be understood that the second cleaning member 13 can also extend in a spiral shape along the axial direction of the roller brush 10. When the second cleaning member 13 also extends in a spiral shape along the axial direction of the roller brush 10, during the rotation of the roller brush 10, there are multiple moments when the second cleaning member 13 and the first cleaning member 12 are in contact with the ground at the same time, so that the first cleaning member 12 and the second cleaning member 13 work together to deeply clean the ground.

[0086] Furthermore, the pitch P1 of the first cleaning member 12 is 500mm to 2000mm, and P1 can be 500mm, 600mm, 700mm, 800mm, 900mm, 1000mm, 1100mm, 1200mm, 1300mm, 1400mm, 1500mm, 1600mm, 1700mm, 1800mm, 1900mm, 2000mm, etc. The pitch P1 of each first cleaning member 12 can change along the axial direction of the roller brush 10, and is also a constant value. Optionally, it can be constant at 1500mm.

[0087] Furthermore, the pitch of the helix of the second cleaning member 13 may be the same as or different from that of the first cleaning member 12, which is not limited in the present application.

[0088] In one embodiment, the first cleaning member 12 is detachably connected to the barrel 11, and / or the second cleaning member 13 is detachably connected to the barrel 11. When the roller brush 10 needs to be installed in inner cavities 21 of different sizes, first cleaning members 12 and / or second cleaning members 13 of different sizes can be installed according to the specific size of the inner cavity 21.

[0089] In this way, the first cleaning member 12, the barrel 11 and the second cleaning member 13 can be respectively formed into a parts library, and selectively installed according to actual needs, thereby reducing production costs and providing versatility.

[0090] In one embodiment, the first cleaning member 12 , the second cleaning member 13 and the barrel 11 are integrally injection molded, that is, the first cleaning member 12 , the second cleaning member 13 and the barrel 11 are connected into an integral structure to facilitate the preparation of the roller brush 10 .

[0091] Specifically, after the size of the inner cavity 21 of the shell 20, the spacing L3, and the spacing L4 are determined, the diameter and axial length of the barrel 11 of the roller brush 10 have been confirmed. At this time, according to actual needs, the pitch of the first cleaning member 12 is set, and the first intersection line L1 and the second intersection line L2 are set. Then, the roller brush 10 is demolded, thereby standardizing the design process of the roller brush 10 and ensuring that the roller brush 10 has a strong cleaning ability and is simple to manufacture.

[0092] According to another aspect of the present application, a separate roller brush 10 in any of the above embodiments is also provided, so that it can be used in various occasions to clean while rolling.

[0093] The embodiment of the third aspect of the present application also provides a cleaning device including the roller brush assembly 100 in any of the above embodiments. The cleaning device may be a sweeping robot, a floor scrubber, etc., which is not limited in the present application.

[0094] The cleaning device in the embodiment of the present application has the following effects:

[0095] (1) By setting L1 to be greater than or equal to 0.5S and less than S, and L2 to be greater than or equal to 0.5L1 and less than L1, the rotation intensity of the airflow in the inner cavity 21 of the shell 20 is ensured while preventing the first cleaning member 12 and the second cleaning member 13 from being affected by each other's deformation, thereby increasing the contact area of ​​the roller brush 10, improving the cleaning effect, and reducing noise.

[0096] (2) The first cleaning member 12 is distributed in an oblique spiral along the axial direction of the roller brush 10, and by limiting the pitch of the first cleaning member 12, the contact area between the first cleaning member 12 and the ground is increased, forming a larger closed surface, achieving a good material rolling effect and improving the cleaning effect on the ground.

[0097] (3) By limiting the first angle a and the second angle b, the first cleaning member 12 and the second cleaning member 13 are inclined relative to the outer surface of the cylinder 11, and the first cleaning member 12 and the second cleaning member 13 also form an acute angle when in contact with the ground, thereby forming a shoveling effect and better cleaning the garbage.

[0098] (4) The roller brush 10 is integrally injection molded, thereby standardizing the design and manufacturing process of the roller brush 10, ensuring a strong cleaning ability and simple manufacturing.

[0099] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A roller brush, characterized in that: include: Cylinder; A first cleaning member and a second cleaning member are arranged on the cylinder body at intervals along the circumference of the roller brush, the first cleaning member has a first surface, the second cleaning member has a second surface, and a first direction opposite to the rotation direction of the roller brush is defined, and the first surface and the second surface are arranged toward the first direction; A reference plane is defined which is perpendicular to the axial direction of the cylinder and passes through the first cleaning member and the second cleaning member, wherein the outer surface of the cylinder and the reference plane have a reference intersection line, the first surface and the reference plane have a first intersection line, the first intersection line and the reference intersection line have an intersection point E, the second surface and the reference plane have a second intersection line, the second intersection line and the reference intersection line have an intersection point F; Among them, the length of the first intersection line is L1, the length of the second intersection line is L2, and in every two adjacent first cleaning members and the second cleaning members, the length of the reference intersection line between the intersection E and the intersection F is defined as S, and the roller brush satisfies: L1 is greater than L2, and L1 is greater than or equal to 0.5S and less than S.

2. The roller brush according to claim 1, characterized in that: L1 is greater than or equal to 0.5S and less than or equal to 0.8S.

3. The roller brush according to claim 1, characterized in that: The roller brush satisfies: L2 is greater than or equal to 0.5L1 and less than L1.

4. The roller brush according to claim 3, characterized in that: L2 is greater than or equal to 0.5L1 and less than or equal to 0.8L1.

5. The roller brush according to claim 1, characterized in that: Define the tangent line of the cylinder passing through point E as the first tangent line, the tangent line of the cylinder passing through point F as the second tangent line, the angle between the first intersection line and the first tangent line as the first angle, and the angle between the second intersection line and the second tangent line as the second angle; Wherein, the first angle is greater than or equal to 30° and less than or equal to 75°, and / or the second angle is greater than or equal to 30° and less than or equal to 75°.

6. The roller brush according to claim 1, characterized in that: The first cleaning member is distributed in an oblique spiral along the axial direction of the roller brush, and / or the second cleaning member is distributed in an oblique thread along the axial direction of the roller brush.

7. The roller brush according to any one of claims 1 to 6, characterized in that: The first cleaning member, the second cleaning member and the barrel are connected to form an integrated structure.

8. A roller brush assembly, characterized in that: It comprises a housing and at least one roller brush according to any one of claims 1 to 7; The shell has an inner cavity, the roller brush is arranged in the inner cavity and is rotatably connected to the shell through the cylinder, and at least the first cleaning member partially extends out of the inner cavity to abut against the ground.

9. The roller brush assembly according to claim 8, characterized in that: The minimum distance between the first cleaning member and the cavity wall of the inner cavity is L3, and L3 satisfies: greater than 0 and less than or equal to 3 mm; and / or, The maximum length of the portion of the first cleaning member extending from the inner cavity in the radial direction of the roller brush is L4, and L4 satisfies: greater than 0 and less than or equal to 2 mm.

10. Cleaning equipment, characterized in that: The roller brush assembly comprises the roller brush assembly as described in any one of claims 8-9.

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