Roller brush, roller brush assembly, and cleaning device

Abstract

Provided are a roller brush, a roller brush assembly, and a cleaning device. The roller brush (100) comprises: a roller (110); and a cleaning member (120, 120A, 120B), provided on the peripheral side of the roller (110) and protruding out of the roller (110).

Description

Roller brushes, roller brush assemblies and cleaning equipment

[0001] This application claims the priority of the Chinese patent application filed with the China Patent Office on February 2, 2024, with application number "202420256296.2" and application name "Roller brush and cleaning device"; and the priority of the Chinese patent application filed with the China Patent Office on February 19, 2024, with application number "202420304835.5" and application name "Roller brush assembly and sweeping robot"; and the priority of the Chinese patent application filed with the China Patent Office on March 22, 2024, with application number "202420573080.9" and application name "Roller brush, roller brush assembly and cleaning device", all of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of cleaning equipment, and in particular to a roller brush, a roller brush assembly and a cleaning equipment. Background Art

[0003] At present, cleaning equipment such as vacuum cleaners have greatly facilitated household cleaning work and reduced people’s housework intensity.

[0004] However, the roller brush of the vacuum cleaner in the related art is usually a soft cleaning material attached to the roller, which cleans by rotating friction. However, since the cleaning material is spread flat on the roller as a whole, the force on the entire cleaning material is uniform, and the stains cannot be effectively cleaned. Summary of the Invention

[0005] The present application aims to at least solve or improve the technical problem of poor cleaning effect of the roller brush of the cleaning equipment in the prior art.

[0006] To this end, a first aspect of the present application proposes a roller brush.

[0007] A second aspect of the present application provides a roller brush assembly.

[0008] A third aspect of the present application provides a cleaning device.

[0009] In view of this, according to a first aspect of the present application, the present application proposes a roller brush, comprising: a roller; and a cleaning element, which is arranged on the circumference of the roller and protrudes from the roller.

[0010] The roller brush proposed in this application includes a roller and a cleaning member. The cleaning member is arranged on a part of the circumference of the roller and protrudes from the roller. When the roller brush rotates, since the cleaning member is protruding, the force applied to the cleaning member will be greater than that at other positions of the roller, thereby improving the cleaning effect of the roller brush. Moreover, since the cleaning member will form a periodic rotation, the cleaning effect of the roller brush will be further improved.

[0011] In addition, the roller brush in the above technical solution provided by this application may also have the following additional technical features:

[0012] In some embodiments, optionally, it further includes: a support member, which is arranged on the peripheral side of the drum, at least on one side of the cleaning member; wherein the height of the cleaning member protruding from the drum is lower than the height of the support member protruding from the drum.

[0013] In the related art, the roller brush is easily entangled by long filaments, which hinders the rotation of the roller brush and affects the dust removal effect. In addition, due to the rotation of the roller brush, hair and long filaments will be tightly entangled on the roller brush, making cleaning more difficult.

[0014] The roller brush proposed in the present application includes a roller, a cleaning member and a supporting member. The cleaning member and the supporting member are both arranged on the circumference of the roller, and the supporting member is at least located on one side of the cleaning member.

[0015] The height of the support member protruding from the drum is greater than the height of the cleaning member protruding from the drum. Therefore, when the drum rotates for cleaning, the support member protrudes from the cleaning member, thereby reducing the possibility of hair or slender filaments being embedded in the cleaning member.

[0016] In some embodiments, optionally, the height of the support member protruding from the drum is a first height, and the height of the cleaning member protruding from the drum is a second height; wherein the difference between the first height and the second height is greater than 0 mm and less than or equal to 2 mm.

[0017] In this embodiment, the height of the support member protruding from the roller is a first height, the height of the cleaning member protruding from the roller is a second height, and the difference between the first height and the second height is greater than 0 mm and less than or equal to 2 mm. This ensures the cleaning effect of the cleaning member while reducing the possibility of the cleaning member being stuck with hair or slender filaments being embedded in the cleaning member, thereby reducing the difficulty of cleaning the roller brush.

[0018] In some embodiments, optionally, the support member includes a first support member and a second support member, and at least one of the first support member and the second support member protrudes from the roller to a height higher than the height of the cleaning member protruding from the roller; along the cleaning rotation direction of the roller brush, the first support member is located on the front flow side of the cleaning member, and the second support member is located on the rear flow side of the cleaning member.

[0019] In this embodiment, the support member includes a first support member and a second support member. The cleaning member, the first support member and the second support member are all arranged on the circumferential side of the roller. Along the cleaning rotation direction of the roller brush, the first support member is located on the front flow side of the cleaning member, and the second support member is located on the rear flow side of the cleaning member.

[0020] The height of the first support member protruding from the drum is greater than the height of the cleaning member protruding from the drum. Therefore, when the drum rotates for cleaning, the first support member protrudes from the cleaning member, thereby reducing the possibility of hair or slender filaments being embedded in the cleaning member.

[0021] Or the height of the second supporting member protruding from the drum is greater than the height of the cleaning member protruding from the drum, and then when the drum rotates for cleaning, the drum rotates, and since the second supporting member protrudes from the cleaning member, the possibility of hair or slender filaments being embedded in the cleaning member is reduced.

[0022] Or the height of the first support member and the second support member protruding from the drum is greater than the height of the cleaning member protruding from the drum, so that when the drum rotates for cleaning, the drum rotates, and since the second support member protrudes from the cleaning member, the possibility of hair or slender filaments being embedded in the cleaning member is reduced.

[0023] The cleaning member has a first support member and a second support member on both sides respectively. Therefore, the first support member and the second support member will lift the hair or slender filaments, reduce the depth of the hair or slender filaments embedded in the cleaning member, and thus reduce the difficulty of cleaning the roller brush.

[0024] Optionally, the height of the first support member protruding from the roller is a first height, the height of the cleaning member protruding from the roller is a second height, and the difference between the first height and the second height is greater than 0 mm and less than or equal to 2 mm, thereby ensuring the cleaning effect of the cleaning member while reducing the possibility of the cleaning member being stuck with hair or slender filaments being embedded in the cleaning member, thereby reducing the difficulty of cleaning the roller brush.

[0025] Or the height of the second supporting member protruding from the roller is a first height, the height of the cleaning member protruding from the roller is a second height, and the difference between the first height and the second height is greater than 0 mm and less than or equal to 2 mm, thereby ensuring the cleaning effect of the cleaning member while reducing the possibility of the cleaning member being stuck with hair or slender filaments being embedded in the cleaning member, thereby reducing the difficulty of cleaning the roller brush.

[0026] Or the heights of the first support member and the second support member protruding from the drum are both the first height, the height of the cleaning member protruding from the drum is the second height, and the difference between the first height and the second height is greater than 0 mm and less than or equal to 2 mm, thereby ensuring the cleaning effect of the cleaning member while reducing the possibility of the cleaning member being stuck with hair or slender filaments being embedded in the cleaning member, thereby reducing the difficulty of cleaning the roller brush.

[0027] In some embodiments, optionally, with the end of the support member facing away from the drum as a reference, the length of the gap between the cleaning member and the support member is a first length; the height of the support member protruding from the drum is a first height, and the first height is less than the first length.

[0028] In this embodiment, along the cleaning rotation direction of the roller brush, with the end of the support member facing away from the roller brush as a reference, the length of the gap between the cleaning member and the support member is a first length, the first length is an arc structure at one end, the radius of the first length is the sum of the radius of the roller and the length of the support member protruding from the roller, one end of the first length is the support member facing away from the roller and toward an end point of the cleaning member, and the other end of the first length is the cleaning member facing away from the roller and toward an end point of the support member.

[0029] The height of the support member protruding from the roller is a first height, and the first height is less than the first length, thereby ensuring the cleaning effect of the cleaning member, avoiding the cleaning member and the support member being too close, resulting in the cleaning member being unable to fully contact the surface to be cleaned, and ensuring the support member prevents hair or slender filaments from being embedded in the cleaning member.

[0030] In some embodiments, optionally, along the cleaning rotation direction of the roller brush, with the end of the first support member facing away from the roller as a reference, the length of the gap between the cleaning member and the first support member is a first length, and the length of the gap between the cleaning member and the second support member is a second length; wherein, the ratio between the first length and the second length is greater than 0 and less than or equal to 0.8.

[0031] In this embodiment, along the cleaning rotation direction of the roller brush, with the end of the first support member facing away from the roller brush as a reference, the length of the gap between the cleaning member and the first support member is a first length, the first length is an arc structure at one end, the radius of the first length is the sum of the radius of the roller and the length of the first support member protruding from the roller, one end of the first length is the first support member facing away from the roller and toward an end point of the cleaning member, and the other end of the first length is the cleaning member facing away from the roller and toward an end point of the first support member.

[0032] Along the cleaning rotation direction of the roller brush, with the end of the second support member facing away from the roller brush as a reference, the length of the gap between the cleaning member and the second support member is the second length, the second length is an arc structure at one end, the radius of the second length is the sum of the radius of the roller and the length of the second support member protruding from the roller, one end of the second length is the second support member facing away from the roller and toward an end point of the cleaning member, and the other end of the second length is the cleaning member facing away from the roller and toward an end point of the second support member.

[0033] The ratio of the first length to the second length is greater than 0 and less than or equal to 0.8, so as to ensure that the first support member, the cleaning member and the second support member are more reasonably distributed on the drum and improve the cleaning effect of the cleaning member.

[0034] In some embodiments, optionally, along the cleaning rotation direction of the roller brush, with the end of the second support member facing away from the roller as a reference, the length of the gap between the cleaning member and the second support member is a second length, and the second length is not greater than 10 mm.

[0035] In this embodiment, along the cleaning rotation direction of the roller brush, with the end of the second support member facing away from the roller brush as a reference, the length of the gap between the cleaning member and the second support member is the second length, the second length is an arc structure at one end, the radius of the second length is the sum of the radius of the roller and the length of the second support member protruding from the roller, one end of the second length is the second support member facing away from the roller and toward an end point of the cleaning member, and the other end of the second length is the cleaning member facing away from the roller and toward an end point of the second support member.

[0036] Furthermore, the second length is no greater than 10 mm to ensure that the roller brush is compact, thereby making the first support member, the cleaning member, and the second support member more compact.

[0037] In some embodiments, optionally, the first support member is a flexible support member, and the height of the first support member protruding from the roller is greater than the height of the cleaning member protruding from the roller; or the first support member is a rigid support member, and the height of the first support member protruding from the roller is less than the height of the cleaning member protruding from the roller.

[0038] In this embodiment, the first support member is a flexible support member, and the height of the first support member protruding from the roller is greater than the height of the cleaning member protruding from the roller, so that the first support member can lift hair or slender filaments and reduce the possibility of hair or slender filaments being embedded in the cleaning member.

[0039] Alternatively, the first support member is a rigid support member, and the height of the first support member protruding from the roller is less than the height of the cleaning member protruding from the roller, thereby ensuring that the cleaning member can clean the surface to be cleaned, avoiding the situation where the cleaning member cannot contact the surface to be cleaned due to the first support member being too high, and improving the cleaning effect of the roller brush.

[0040] In some embodiments, optionally, the second support member is a flexible support member, and the height of the second support member protruding from the roller is greater than the height of the cleaning member protruding from the roller; or the second support member is a rigid support member, and the height of the second support member protruding from the roller is less than the height of the cleaning member protruding from the roller.

[0041] In this embodiment, the second support member is a flexible support member, and the height of the second support member protruding from the roller is greater than the height of the cleaning member protruding from the roller, so that the second support member can lift hair or slender filaments and reduce the possibility of hair or slender filaments being embedded in the cleaning member.

[0042] Alternatively, the second support member is a rigid support member, and the height of the second support member protruding from the roller is less than the height of the cleaning member protruding from the roller, thereby ensuring that the cleaning member can clean the surface to be cleaned, avoiding the cleaning member being unable to contact the surface to be cleaned due to the second support member being too high, and improving the cleaning effect of the roller brush.

[0043] In some embodiments, optionally, the support member and the roller are fixedly connected, or the support member and the roller are detachably connected.

[0044] In this embodiment, the support member and the roller are fixedly connected, thereby improving the connection strength between the support member and the roller.

[0045] Alternatively, the support member and the roller are detachably connected, so that the support member can be replaced, which facilitates the repair and maintenance of the roller brush.

[0046] In some embodiments, optionally, the cleaning member includes: a plurality of first cleaning members, which are arranged in sequence along the circumference of the roller; a plurality of second cleaning members, which are arranged in sequence along the circumference of the roller, and the first cleaning members and the second cleaning members are arranged at intervals; wherein the thickness of the end of the first cleaning member connected to the roller is greater than the thickness of the end of the first cleaning member away from the roller.

[0047] In the related art, the friction generated by the relative movement between the brush body in the roller brush and the ground is relatively large, which results in relatively large noise.

[0048] The roller brush proposed in this application can be used in a sweeping robot. When the sweeping robot is working, the roller brush can contact the ground to clean the ground. The roller brush includes a roller, a plurality of first cleaning members and a plurality of second cleaning members, wherein the plurality of first cleaning members are sequentially connected to the roller along the circumference of the roller, the plurality of second cleaning members are sequentially connected to the roller along the circumference of the roller, and the first cleaning members and the second cleaning members are arranged at intervals. When the sweeping robot is removing dust from the ground, the roller can drive the first cleaning member and the second cleaning member to rotate relative to the ground, and the first cleaning member and the second cleaning member alternately contact the ground and sweep the ground to sweep up dust and other impurities on the ground and clean the ground. In a possible technical solution, the first cleaning member and the second cleaning member are rubber brushes.

[0049] Furthermore, the thickness of the end of the first cleaning member connected to the roller is greater than the thickness of the end of the first cleaning member away from the roller, that is, the end of the first cleaning member that contacts the ground is thinner, and the end of the first cleaning member connected to the roller is thicker. It is understandable that when the roller drives the first cleaning member and the second cleaning member to rotate relative to the ground, the first cleaning member and the second cleaning member move relative to the ground. Since the first cleaning member and the second cleaning member are in contact with the ground, friction exists between the first cleaning member and the second cleaning member and the ground. In the case where the first cleaning member and the second cleaning member are constructed as rubber brushes, the friction between the first cleaning member and the second cleaning member and the ground is large, which will cause a large noise. In order to reduce noise while ensuring the cleaning ability of the roller brush, the present application sets the first cleaning member to a structure with a thin end in contact with the ground and a thick end connected to the roller. This can not only ensure sufficient contact between the first cleaning member and the ground, so that the first cleaning member has good dust removal ability, but also reduce the friction between the first cleaning member and the ground, thereby reducing noise.

[0050] By setting the thickness of the end of the first cleaning member connected to the roller to be greater than the thickness of the end of the first cleaning member away from the roller, the end of the first cleaning member in contact with the ground can be thinned. This not only allows the first cleaning member to fully contact the ground, so that the first cleaning member has good dust sweeping ability, but also reduces the friction between the first cleaning member and the ground, thereby reducing noise.

[0051] The roller brush according to the present application may also have the following distinguishing technical features:

[0052] In some embodiments, optionally, any first cleaning member includes: a brush root portion, connected to the roller; a brush top portion, located at the end of the brush root portion facing away from the roller, and the thickness of the brush top portion is less than the thickness of the brush root portion; a transition portion, the two ends of the transition portion are respectively connected to the brush root portion and the brush top portion, and the thickness of the transition portion gradually decreases in the direction away from the roller.

[0053] In this embodiment, the structure of the first cleaning member is further defined. Each first cleaning member includes a brush root, a brush top, and a transition portion, wherein the transition portion is used to connect the brush root and the brush top, the brush root is connected to the roller, the brush top is located at the end of the transition portion facing away from the roller, and the brush top is used to contact the ground. In a direction away from the roller, the brush root, the transition portion, and the brush top are connected in sequence. The brush top is thinner than the brush root, that is, the portion of the first cleaning member connected to the roller is thicker, and the portion of the first cleaning member that contacts the ground is thinner. In this way, the portion of the first cleaning member connected to the roller (i.e., the brush root) can have higher strength, reducing the possibility of the first cleaning member breaking or deforming from the roller, allowing the first cleaning member to be more firmly connected to the roller. Furthermore, by allowing the thinner end of the first cleaning member (i.e., the brush top) to contact the ground, the friction between the first cleaning member and the ground can be reduced, thereby reducing noise.

[0054] Furthermore, the transition section connects to the brush base and brush top at both ends, with the thickness of the transition section gradually decreasing as it moves away from the roller. Understandably, if the brush base were directly connected to the brush top, the sudden change in thickness would generate significant stress at the junction, making deformation or breakage more likely. By providing a gradually decreasing transition section between the brush top and brush base, stress concentration can be avoided, improving the reliability of the first cleaning element and extending its service life.

[0055] In some embodiments, optionally, the thickness of the brush root is in the range of 0.8 mm to 1.2 mm, and the thickness of the brush top is in the range of 0.6 mm to 0.7 mm.

[0056] In this embodiment, the dimensions of the brush base and brush top are limited. Specifically, the thickness of the brush base ranges from 0.8mm to 1.2mm, and the thickness of the brush top ranges from 0.6mm to 0.7mm. By limiting the thickness of the brush base to 0.8mm to 1.2mm, the strength of the brush base meets the required usage, ensuring that the first cleaning member can be securely connected to the roller and preventing the brush base from breaking or bending. By limiting the thickness of the brush top to 0.6mm to 0.7mm, the friction between the brush top and the ground can be reduced while ensuring the brush top's cleaning ability, thereby reducing noise.

[0057] In some embodiments, optionally, along a direction away from the drum, a ratio of a height of the brush top to a height of the first cleaning member is greater than or equal to 0.5.

[0058] In this embodiment, the range of the ratio of the height of the top of the brush to the height of the first cleaning member is limited. Specifically, in the direction away from the roller, the ratio of the height of the top of the brush to the height of the first cleaning member is greater than or equal to 0.5. It is understandable that the magnitude of the friction between the top of the brush and the ground is related to the height of the top of the brush. When the thickness of the top of the brush is determined, the larger the height of the top of the brush, the stronger the bending ability of the top of the brush, the smaller the friction between the top of the brush and the ground, and the smaller the noise generated. For this reason, the present application limits the range of the ratio of the height of the top of the brush to the height of the first cleaning member to greater than or equal to 0.5, thereby effectively reducing the friction between the first cleaning member and the ground, so that the noise can be greatly reduced.

[0059] In some embodiments, optionally, the roller brush is used for a sweeping robot. When the sweeping robot is running, the roller brush can rotate in a forward direction, and the transition portion has a first surface and a second surface that are opposite to each other. When the roller brush rotates in a forward direction, the first surface of the transition portion moves in a direction toward the second surface of the transition portion, and the first surface of the transition portion is a slope.

[0060] In this embodiment, the transition portion is defined. The roller brush can be used in a sweeping robot, and when the sweeping robot is running, the roller brush can rotate in the forward direction. Specifically, the roller rotates in the forward direction, and the roller drives the first cleaning member and the second cleaning member to rotate in the forward direction. The transition portion has a first surface and a second surface that are opposite to each other, and when the roller brush rotates in the forward direction, the first surface of the transition portion moves in a direction toward the second surface of the transition portion. When the sweeping robot cleans the ground, the first cleaning member can contact the ground, and when the roller brush rotates in the forward direction, the first surface of the transition portion moves in a direction toward the second surface of the transition portion, and the direction of the friction force from the ground on the first cleaning member is from the second surface to the first surface.

[0061] Furthermore, the first surface of the transition portion is an inclined surface. In a direction away from the drum, the first surface of the transition portion extends toward the second surface of the transition portion, so that the thickness of the transition portion gradually decreases in the direction away from the drum. Because the first surface of the transition portion is configured as an inclined surface, the transition portion provides a certain degree of support for the top of the brush, thereby overcoming frictional forces on the top of the brush and preventing excessive deformation of the top of the brush, thereby ensuring sufficient cleaning performance of the first cleaning member.

[0062] In some embodiments, optionally, the first cleaning member and the second cleaning member are spirally arranged along the axial direction of the drum, and the spiral direction of the first cleaning member and the second cleaning member is opposite to the forward rotation direction of the roller brush.

[0063] In this embodiment, the first and second cleaning members are further defined. They are arranged helically along the axial direction of the drum, with the spiral direction of the first and second cleaning members being opposite to the forward rotation direction of the roller brush. This structure makes it easier for the first and second cleaning members to clean the floor, improves the cleaning efficiency of the roller brush, and reduces the possibility of filamentary structures such as hair becoming entangled in the first and second cleaning members.

[0064] In some embodiments, optionally, the edge of any first cleaning member at one end facing away from the roller has a beveled portion, the thickness of the beveled portion gradually decreases in the direction away from the roller, the beveled portion has an inclined surface, the inclined surface extends obliquely along the surface of the top of the brush, and the inclined surface and the first surface of the transition portion are located on the same side of the first cleaning member.

[0065] In this embodiment, the structure of the first cleaning element is further defined. The edge of each first cleaning element facing away from the roller has a beveled portion. When the roller brush is cleaning the floor, the beveled portion contacts the floor to reduce the impact of the first cleaning element against the floor, thereby further reducing the noise generated by the friction between the first cleaning element and the floor, reducing wear on the first cleaning element, and extending the service life of the first cleaning element. Specifically, the thickness of the beveled portion gradually decreases in a direction away from the roller. The beveled portion has an inclined surface that extends obliquely along the surface of the top of the brush. The inclined surface and the first surface of the transition portion are located on the same side as the first cleaning element, and the spiral direction of the inclined surface is opposite to the forward rotation direction of the roller brush. When the roller brush is cleaning the floor, the roller drives the multiple first cleaning elements to contact the floor in sequence. When the roller brush rotates in the forward direction, the inclined surface of the beveled portion contacts the floor first. Due to the inclined configuration of the inclined surface, the inclined surface acts to reduce friction, further reducing the noise generated by the friction between the first cleaning element and the floor, reducing wear on the first cleaning element, and extending the service life of the first cleaning element.

[0066] In some embodiments, optionally, along a direction away from the drum, a height of the first cleaning member is greater than a height of the second cleaning member.

[0067] In this embodiment, the first cleaning member and the second cleaning member are further defined. The heights of the first cleaning member and the second cleaning member are different. Specifically, in the direction away from the drum, the height of the first cleaning member is greater than the height of the second cleaning member. It is understandable that if the height of the first cleaning member is less than that of the second cleaning member or the first cleaning member is the same as the second cleaning member, then while ensuring that the second cleaning member is in contact with the ground, the interference fit between the first cleaning member and the ground will be reduced compared to a structure in which the first cleaning member is higher than the second cleaning member. Since the end of the first cleaning member that contacts the ground is thinner, if the interference fit between the first cleaning member and the ground is insufficient, the friction between the first cleaning member and the ground will be too small, thereby resulting in insufficient cleaning ability of the first cleaning member. In order to ensure that the first cleaning member has sufficient cleaning ability, the present application sets the height of the first cleaning member to be higher than that of the second cleaning member, so that there is a larger interference fit between the first cleaning member and the ground, so that the first cleaning member has sufficient cleaning ability.

[0068] In some embodiments, optionally, along an extension direction of the second cleaning member away from the drum, the thickness of the second cleaning member remains unchanged.

[0069] In this embodiment, the second cleaning member is defined. Along the direction in which the second cleaning member extends away from the roller, the thickness of the second cleaning member remains constant. By providing a second cleaning member of equal thickness in the roller brush, the second cleaning member can assist in cleaning the first cleaning member, further enhancing the cleaning capability of the roller brush.

[0070] In some embodiments, optionally, the plurality of first cleaning members are evenly distributed along the circumference of the drum, and the plurality of second cleaning members are evenly distributed along the circumference of the drum.

[0071] In this embodiment, the distribution of the first and second cleaning members is defined. Specifically, the first and second cleaning members are evenly distributed along the circumference of the roller, and the second and second cleaning members are evenly distributed along the circumference of the roller. This ensures that the first and second cleaning members regularly contact the ground, ensuring a more stable cleaning performance. It also provides a more stable force on the roller brush, avoiding sudden changes in force, and ensuring stable operation of the roller brush.

[0072] In some embodiments, optionally, the first cleaning member and the second cleaning member are detachably connected to the drum.

[0073] In this embodiment, the first cleaning member and the second cleaning member are defined. Specifically, the first cleaning member and the second cleaning member are detachably connected to the drum, so that the user can clean and replace the first cleaning member and the second cleaning member, thereby improving the user's convenience.

[0074] In some embodiments, optionally, the cleaning member includes: a third cleaning member and a fourth cleaning member, the third cleaning member and the fourth cleaning member are arranged on the drum at intervals along the circumference of the roller brush, the third cleaning member has a third surface, the fourth cleaning member has a fourth surface, defining a first direction opposite to the rotation direction of the roller brush, and the third surface and the fourth surface are arranged toward the first direction;

[0075] A reference plane is defined that is perpendicular to the axial direction of the roller and passes through the third cleaning member and the fourth cleaning member. The outer surface of the roller and the reference plane have a reference intersection line. The third surface and the reference plane have a first intersection line. The first intersection line and the reference intersection line have an intersection point G. The fourth surface and the reference plane have a second intersection line. The second intersection line and the reference intersection line have an intersection point I. The length of the first intersection line is L1, the length of the second intersection line is L2, and in every two adjacent third cleaning members and fourth cleaning members, the length of the reference intersection line between the intersection point G and the intersection point I is defined as S. The roller brush satisfies the following conditions: L1 is greater than L2, and L1 is greater than or equal to 0.5S and less than S.

[0076] In the related art, there is a full-rubber roller brush with multiple scraping strips on its periphery. The scraping strips are made of soft rubber and have excellent hair cleaning capabilities. However, in order to avoid interference between adjacent rubber strips, the spacing between the rubber strips of the existing full-rubber roller brush is relatively wide, 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 strips on the side close to the ground to increase the ground contact area of ​​the scraping strips. However, this increases the slapping noise of the scraping strips against the ground. The ground can be continuously cleaned by the third cleaning member and the fourth cleaning member, and the third cleaning member and the fourth cleaning member will not be overwhelmed by each other after being tilted 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 third cleaning member and the fourth cleaning member on the side close to the ground, which can reduce the slapping noise and achieve efficient, fast and low-noise cleaning.

[0077] According to some embodiments of the present application, L1 is greater than or equal to 0.5S and less than or equal to 0.8S.

[0078] According to some embodiments of the present application, the roller brush satisfies: L2 is greater than or equal to 0.5 and L1 is less than L1.

[0079] According to some embodiments of the present application, L2 is greater than or equal to 0.5L1 and less than or equal to 0.8L1.

[0080] According to some embodiments of the present application, a tangent line of the drum passing through point G is defined as a first tangent line, a tangent line of the drum passing through point I 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;

[0081] 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°.

[0082] According to some embodiments of the present application, the third cleaning member is distributed in an oblique spiral along the axial direction of the roller brush, and / or the fourth cleaning member is distributed in an oblique thread along the axial direction of the roller brush.

[0083] According to some embodiments of the present application, the third cleaning member, the fourth cleaning member and the roller are connected into an integrated structure.

[0084] According to the second embodiment of the present application, the roller brush assembly includes a housing and at least one roller brush according to the above embodiment;

[0085] The shell has an inner cavity, the roller brush is arranged in the inner cavity and is rotatably connected to the shell through the roller, and a part of the roller brush extends out of the inner cavity to abut against the cleaning ground.

[0086] According to some embodiments of the present application, the minimum distance between the third cleaning member and the wall of the inner cavity is L3, and L3 satisfies: greater than 0 mm and less than or equal to 3 mm, and / or, the maximum length of the protruding part of the third cleaning member from the inner cavity in the radial direction of the roller brush is L4, and L4 satisfies: greater than 0 mm and less than or equal to 2 mm.

[0087] The cleaning device provided according to the third embodiment of the present application includes the roller brush provided in the first embodiment; or the roller brush assembly provided in the second embodiment.

[0088] The cleaning device proposed in this application includes the roller brush provided in the first aspect embodiment; or the roller brush assembly provided in the second aspect embodiment, and therefore has all the beneficial effects of the roller brush provided in the first aspect embodiment; or the roller brush assembly provided in the second aspect embodiment, which will not be stated one by one here.

[0089] For example, the cleaning device according to the embodiment of the present application has at least the following beneficial effects:

[0090] By limiting the size of the third cleaning member and the fourth 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 third cleaning member and the fourth cleaning member during the forward movement of the cleaning device, and the third cleaning member and the fourth cleaning member do not affect each other, thereby increasing the overall contact area with the floor and improving the cleaning effect.

[0091] Additional aspects and advantages of the present application will become apparent in the following description or may be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0092] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0093] FIG1 shows a schematic structural diagram of a roller brush provided by an embodiment of the present application;

[0094] FIG2 shows a cross-sectional view of a roller brush provided by one embodiment of the present application;

[0095] FIG3 shows a cross-sectional view of a roller brush provided by one embodiment of the present application;

[0096] FIG4 shows a cross-sectional view of a roller brush provided by one embodiment of the present application;

[0097] FIG5 shows one of the structural schematic diagrams of a roller brush according to an embodiment of the present application;

[0098] FIG6 shows a second structural diagram of a roller brush according to an embodiment of the present application;

[0099] FIG7 shows a third structural diagram of a roller brush according to an embodiment of the present application;

[0100] FIG8 shows a partial enlarged view of the A1 area in FIG7 ;

[0101] FIG9 shows a schematic structural diagram of a roller brush assembly according to an embodiment of the present application;

[0102] FIG10 shows an enlarged structural diagram of point A2 in FIG9 ;

[0103] FIG11 shows an enlarged structural diagram of A3 in FIG9 ;

[0104] FIG12 shows a schematic structural diagram of a roller brush according to an embodiment of the present application;

[0105] FIG13 is a schematic diagram of the cross-sectional structure of the roller brush in FIG12;

[0106] FIG14 is an enlarged structural diagram of point A4 in FIG13 .

[0107] 1 to 14 , the corresponding relationships between the reference numerals and the component names are as follows: 100 roller brush, 110 roller, 120, 120A, 120B cleaning member, 122 second cleaning member, 124 brush root, 126 transition portion, 128 brush top, 130 first surface, 132 second surface, 134 chamfered portion, 136 inclined surface, 138 third cleaning member, 140 third cleaning member, 142 convex portion, 144 third surface, 146 fifth surface, 148 fourth cleaning member, 150 fourth surface, 152 sixth surface, 160 supporting member, 162, 162A, 162B first supporting member, 164, 164A, 164B second supporting member, 200 roller brush assembly, 210 housing, 212 inner cavity; h, h1 and h2 represent the first height; b, b1 and b2 represent the second height; d represents the first length; c represents the second length; a represents the difference between the first height h and the second height b; a1 represents the difference between the first height h1 and the second height b1; a2 represents the difference between the first height h2 and the second height b2; a3 represents the thickness of the top of the brush; b3 represents the thickness of the root of the brush; f1 represents the height of the top of the brush; f2 represents the height of the second cleaning member; f3 represents the height of the third cleaning member; v represents the first angle; w represents the second angle; e represents the rotation direction; K represents the first direction; Y1 represents the reference intersection line; Y2 represents the first intersection line; Y3 represents the second intersection line; Q1 represents the first tangent line; Q2 represents the second tangent line; G represents the intersection point of the first intersection line and the reference intersection line; I represents the intersection point of the second intersection line and the reference intersection line; J represents the first farthest point; M represents the second farthest point; S represents the arc length of the portion of the reference intersection line between the intersection point G and the intersection point I. DETAILED DESCRIPTION

[0108] In order to more clearly understand the above-mentioned objects, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other in the absence of conflict.

[0109] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0110] The following describes a roller brush 100 , a roller brush assembly 200 , and a cleaning device according to some embodiments of the present application with reference to FIG. 1 to FIG. 14 .

[0111] As shown in FIG. 1 to FIG. 14 , according to a first aspect of the present application, the present application provides a roller brush 100 , comprising: a roller 110 ; and a cleaning member 120 , which is arranged on the circumference of the roller 110 and protrudes from the roller 110 .

[0112] The roller brush 100 provided in the present application includes a roller 110 and a cleaning member 120. The cleaning member 120 is arranged on a part of the circumference of the roller 110 and protrudes from the roller 110. When the roller brush 100 rotates, since the cleaning member 120 is protruding, the force applied to the cleaning member 120 will be greater than that on other positions of the roller 110, thereby improving the cleaning effect of the roller brush 100. Moreover, since the cleaning member 120 will form a periodic rotation, the cleaning effect of the roller brush 100 will be further improved.

[0113] In the related art, the roller brush is easily entangled by long filaments, which hinders the rotation of the roller brush and affects the dust removal effect. In addition, due to the rotation of the roller brush, hair and long filaments will be tightly entangled on the roller brush, making cleaning more difficult.

[0114] As shown in Figures 1 to 14, the present application provides a roller brush 100, which is used for cleaning equipment. The roller brush 100 includes a roller 110, a cleaning member 120 and a support member 160. The cleaning member 120 and the support member 160 are both arranged on the circumference of the roller 110. The cleaning member 120 extends spirally from one end to the other end of the roller 110. Along the circumference of the roller 110, the support members 160 are respectively located on both sides of the cleaning member 120.

[0115] The support member 160 extends in a spiral shape from one end to the other end of the drum 110 , wherein the cleaning member 120 and the support member 160 are arranged substantially in parallel.

[0116] The roller brush 100 provided in the present application includes a roller 110 , a cleaning member 120 and a support member 160 . The cleaning member 120 and the support member 160 are both arranged on the circumference of the roller 110 , and the support member 160 is at least located on one side of the cleaning member 120 .

[0117] The height of the support member 160 protruding from the drum 110 is greater than the height of the cleaning member 120 protruding from the drum 110. Therefore, when the drum 110 rotates for cleaning, the drum 110 rotates. Since the support member 160 protrudes from the cleaning member 120, the possibility of hair or slender filaments being embedded in the cleaning member 120 can be reduced.

[0118] As shown in Figure 2, in some embodiments, optionally, the height of the support member 160 protruding from the roller 110 is a first height h, that is, along the radial direction of the roller 110, the height of the support member 160 protruding from the roller 110 is the first height h, and the height of the cleaning member 120 protruding from the roller 110 is a second height b, that is, along the radial direction of the roller 110, the height of the cleaning member 120 protruding from the roller 110 is the second height b, wherein the difference a between the first height h and the second height b is greater than 0 mm and less than or equal to 2 mm.

[0119] In this embodiment, the height of the support member 160 protruding from the roller 110 is a first height h, and the height of the cleaning member 120 protruding from the roller 110 is a second height b. The difference a between the first height h and the second height b is greater than 0 mm and less than or equal to 2 mm. While ensuring the cleaning effect of the cleaning member 120, the possibility of the cleaning member 120 being stuck with hair or slender filaments being embedded in the cleaning member 120 is reduced, thereby reducing the difficulty of cleaning the roller brush 100.

[0120] Specifically, the difference a between the first height h and the second height b may be equal to 0.5 mm, 1 mm, 1.5 mm or 2 mm.

[0121] As shown in Figures 1, 2, 3 and 4, in some embodiments, optionally, the support member 160 includes a first support member 162 and a second support member 164, and at least one of the first support member 162 and the second support member 164 protrudes from the roller 110 at a height higher than the height of the cleaning member 120 protruding from the roller 110; along the cleaning rotation direction e of the roller brush 100, the first support member 162 is located on the front flow side of the cleaning member 120, and the second support member 164 is located on the rear flow side of the cleaning member 120.

[0122] In this embodiment, the roller brush 100 includes a roller 110, a cleaning member 120, a first support member 162 and a second support member 164. The cleaning member 120, the first support member 162 and the second support member 164 are all arranged on the circumferential side of the roller 110. The cleaning member 120 extends spirally from one end to the other end of the roller 110. Along the circumferential side of the roller 110, the first support member 162 and the second support member 164 are respectively located on both sides of the cleaning member 120.

[0123] The first support member 162 extends spirally from one end to the other end of the drum 110 , and the second support member 164 extends spirally from one end to the other end of the drum 110 , wherein the cleaning member 120 , the first support member 162 and the second support member 164 are arranged substantially in parallel.

[0124] 4 , the height at which the first supporting member 162A protrudes from the drum 110 is greater than the height at which the cleaning member 120A protrudes from the drum 110. Alternatively, as shown in FIG4 , the height at which the second supporting member 164B protrudes from the drum 110 is greater than the height at which the cleaning member 120B protrudes from the drum 110. Alternatively, as shown in FIG2 and FIG3 , the heights at which the first supporting member 162 and the second supporting member 164 protrude from the drum 110 are both greater than the height at which the cleaning member 120 protrudes from the drum 110.

[0125] As shown in FIG4 , the height of the first support member 162A protruding from the drum 110 is greater than the height of the cleaning member 120A protruding from the drum 110. Thus, when the drum 110 rotates for cleaning, the first support member 162 protrudes from the cleaning member 120, thereby reducing the possibility of hair or slender filaments being embedded in the cleaning member 120.

[0126] Or as shown in Figure 4, the height of the second support member 164B protruding from the drum 110 is greater than the height of the cleaning member 120B protruding from the drum 110. Therefore, when the drum 110 rotates for cleaning, the drum 110 rotates, and since the second support member 164 protrudes from the cleaning member 120, the possibility of hair or slender filaments being embedded in the cleaning member 120 is reduced.

[0127] Or as shown in Figures 2 and 3, the height of the first support member 162 and the second support member 164 protruding from the drum 110 is greater than the height of the cleaning member 120 protruding from the drum 110. Therefore, when the drum 110 rotates for cleaning, the drum 110 rotates, and since the second support member 164 protrudes from the cleaning member 120, the possibility of hair or slender filaments being embedded in the cleaning member 120 is reduced.

[0128] The cleaning member 120 has a first support member 162 and a second support member 164 on both sides respectively. Therefore, the first support member 162 and the second support member 164 will lift the hair or slender filaments, reduce the depth of the hair or slender filaments embedded in the cleaning member 120, and thus reduce the difficulty of cleaning the roller brush 100.

[0129] The roller 110 may be provided with multiple sets of cleaning members 120, first support members 162, and second support members 164. One set of cleaning members 120, first support members 162, and second support members 164 includes one cleaning member 120, one first support member 162, and one second support member 164. The roller brush 100 provided in the present application only has one set of cleaning members 120, first support members 162, and second support members 164, so that the height of the first support member 162 protruding from the roller 110 is greater than the height of the cleaning member 120 protruding from the roller 110.

[0130] As shown in Figure 4, two groups of cleaning members 120, first support members 162 and second support members 164 can be set on the roller 110, wherein one group is the cleaning member 120A, the first support member 162A and the second support member 164A, and the other group is the cleaning member 120B, the first support member 162B and the second support member 164B. The first support member 162A protrudes from the roller 110 at a height greater than the height of the cleaning member 120A protruding from the roller 110, and the other second support member 164B protrudes from the roller 110 at a height greater than the height of the cleaning member 120B protruding from the roller 110.

[0131] As shown in Figure 4, in some embodiments, optionally, the height of the first support member 162A protruding from the roller 110 is a first height h1, that is, along the radial direction of the roller 110, the height of the first support member 162A protruding from the roller 110 is the first height h1, and the height of the cleaning member 120A protruding from the roller 110 is a second height b1, that is, along the radial direction of the roller 110, the height of the cleaning member 120A protruding from the roller 110 is the second height b1, wherein the difference a1 between the first height h1 and the second height b1 is greater than 0 mm and less than or equal to 2 mm.

[0132] In this embodiment, the height of the first support member 162A protruding from the roller 110 is a first height h1, and the height of the cleaning member 120A protruding from the roller 110 is a second height b1. The difference a1 between the first height h1 and the second height b1 is greater than 0 mm and less than or equal to 2 mm. This ensures the cleaning effect of the cleaning member 120 while reducing the possibility of the cleaning member 120 being stuck with hair or slender filaments being embedded in the cleaning member 120, thereby reducing the difficulty of cleaning the roller brush 100.

[0133] Specifically, the difference a1 between the first height h1 and the second height b1 may be equal to 0.5 mm, 1 mm, 1.5 mm, or 2 mm.

[0134] As shown in Figure 4, in some embodiments, optionally, the height of the second support member 164B protruding from the roller 110 is a first height h2, that is, along the radial direction of the roller 110, the height of the second support member 164B protruding from the roller 110 is the first height h2, and the height of the cleaning member 120B protruding from the roller 110 is a second height b2, that is, along the radial direction of the roller 110, the height of the cleaning member 120B protruding from the roller 110 is the second height b2, wherein the difference a2 between the first height h2 and the second height b2 is greater than 0 mm and less than or equal to 2 mm.

[0135] In this embodiment, the height of the second support member 164B protruding from the roller 110 is a first height h2, and the height of the cleaning member 120B protruding from the roller 110 is a second height b2. The difference a2 between the first height h2 and the second height b2 is greater than 0 mm and less than or equal to 2 mm. While ensuring the cleaning effect of the cleaning member 120, the possibility of the cleaning member 120 being stuck with hair or slender filaments being embedded in the cleaning member 120 is reduced, thereby reducing the difficulty of cleaning the roller brush 100.

[0136] As shown in Figure 2, in some embodiments, optionally, the height of the first support member 162 and the second support member 164 protruding from the roller 110 is both a first height h, that is, along the radial direction of the roller 110, the height of the first support member 162 and the second support member 164 protruding from the roller 110 is the first height h, and the height of the cleaning member 120 protruding from the roller 110 is a second height b, that is, along the radial direction of the roller 110, the height of the cleaning member 120 protruding from the roller 110 is the second height b, wherein the difference a between the first height h and the second height b is greater than 0 mm and less than or equal to 2 mm.

[0137] In this embodiment, the heights of the first support member 162 and the second support member 164 protruding from the roller 110 are both a first height h, the height of the cleaning member 120 protruding from the roller 110 is a second height b, and the difference a between the first height h and the second height b is greater than 0 mm and less than or equal to 2 mm. This ensures the cleaning effect of the cleaning member 120 while reducing the possibility of the cleaning member 120 being stuck with hair or slender filaments being embedded in the cleaning member 120, thereby reducing the difficulty of cleaning the roller brush 100.

[0138] As shown in Figure 3, in some embodiments, optionally, when the roller brush 100 rotates to clean the surface to be cleaned, the support member 160 passes through the surface to be cleaned first, and then the cleaning member 120 passes through the surface to be cleaned, and, with the end of the support member 160 facing away from the roller 110 as a reference, the length of the gap between the cleaning member 120 and the support member 160 is a first length d, and the height of the support member 160 protruding from the roller 110 is a first height h, and the first height h is less than the first length d.

[0139] In this embodiment, along the cleaning rotation direction e of the roller brush 100, with the end of the support member 160 away from the roller brush 100 as a reference, the length of the gap between the cleaning member 120 and the support member 160 is a first length d, the first length d is an arc structure at one end, the radius of the first length d is the sum of the radius of the roller 110 and the length of the support member 160 protruding from the roller 110, one end of the first length d is the support member 160 away from the roller 110 and an end point toward the cleaning member 120, and the other end of the first length d is the cleaning member 120 away from the roller 110 and an end point toward the support member 160.

[0140] The height of the support member 160 protruding from the roller 110 is a first height h, and the first height h is less than the first length d. After the support member 160 contacts and tilts over the surface to be cleaned, the cleaning member 120 can also be fully clear of the surface to be cleaned, thereby ensuring the cleaning effect of the cleaning member 120, avoiding the cleaning member 120 and the support member 160 being too close, resulting in the cleaning member 120 being unable to fully contact the surface to be cleaned, and ensuring the support member 160 prevents hair or slender filaments from embedding into the cleaning member 120.

[0141] Furthermore, a distance between one end of the support member 160 away from the drum 110 and toward the cleaning member 120 and one end of the cleaning member 120 away from the drum 110 and toward the support member 160 is greater than or equal to the first height h.

[0142] Specifically, with the end of the first support member 162 facing away from the drum 110 as a reference, the length of the gap between the cleaning member 120 and the first support member 162 is a first length d, and the height of the first support member 162 protruding from the drum 110 is a first height h, which is less than the first length d.

[0143] As shown in Figure 3, in some embodiments, optionally, along the cleaning rotation direction e of the roller brush 100, the second support member 164 is located on the rear side of the cleaning member 120, that is, when the roller brush 100 is cleaning, the cleaning member 120 first passes through the surface to be cleaned, and then the second support member 164 passes through the surface to be cleaned. Taking the end of the second support member 164 away from the roller 110 as a reference, the length of the gap between the cleaning member 120 and the second support member 164 is the second length c; the height of the cleaning member 120 protruding from the roller 110 is the second height b, and the second length c is greater than the second height b.

[0144] In this embodiment, along the cleaning rotation direction of the roller brush 100, the second support member 164 is located on the rear side of the cleaning member 120, that is, when the roller brush 100 is cleaning, the cleaning member 120 first passes through the surface to be cleaned, and then the second support member 164 passes through the surface to be cleaned, so that when the cleaning member 120 is embedded in hair or slender filaments, it will be supported by the second support member 164, so that the hair or slender filaments cannot penetrate deeply into the cleaning member 120, thereby reducing the depth of the hair or slender filaments embedded in the cleaning member 120.

[0145] Moreover, along the cleaning rotation direction of the roller brush 100, with the end of the second support member 164 away from the roller brush 100 as a reference, the length of the gap between the cleaning member 120 and the second support member 164 is the second length c, the second length c is an arc structure at one end, the radius of the second length c is the sum of the radius of the roller 110 and the length of the second support member 164 protruding from the roller 110, one end of the second length is the second support member 164 away from the roller 110 and an end point toward the cleaning member 120, and the other end of the second length c is the cleaning member 120 away from the roller 110 and an end point toward the second support member 164.

[0146] The height of the cleaning member 120 protruding from the roller 110 is a second height b, and the second length c is greater than the second height b, thereby ensuring that the cleaning member 120 will not be interfered with by the second support member 164 after being bent, so as to ensure the cleaning effect of the roller brush 100, and ensure that the second support member 164 reduces the depth of hair or slender filaments embedded in the cleaning member 120.

[0147] Furthermore, a distance between an end of the second supporting member 164 away from the drum 110 and toward the cleaning member 120 and an end of the cleaning member 120 away from the drum 110 and toward the second supporting member 164 is greater than or equal to the second height b.

[0148] As shown in Figure 3, in some embodiments, optionally, along the cleaning rotation direction e of the roller brush 100, the second support member 164 is located on the rear side of the cleaning member 120, that is, when the roller brush 100 is cleaning, the first support member 162 first passes through the surface to be cleaned, the cleaning member 120 then passes through the surface to be cleaned, and then the second support member 164 passes through the surface to be cleaned. Taking the end of the first support member 162 away from the drum 110 as a reference, the length of the gap between the cleaning member 120 and the first support member 162 is the first length d, and the length of the gap between the cleaning member 120 and the second support member 164 is the second length c; wherein, the ratio between the first length d and the second length c is greater than 0 and less than or equal to 0.8.

[0149] In this embodiment, along the cleaning rotation direction of the roller brush 100, with the end of the first support member 162 away from the roller brush 100 as a reference, the length of the gap between the cleaning member 120 and the first support member 162 is a first length d, the first length d is an arc structure at one end, the radius of the first length d is the sum of the radius of the roller 110 and the length of the first support member 162 protruding from the roller 110, one end of the first length d is the first support member 162 away from the roller 110 and an end point toward the cleaning member 120, and the other end of the first length d is the cleaning member 120 away from the roller 110 and an end point toward the first support member 162.

[0150] Along the cleaning rotation direction of the roller brush 100, with the end of the second support member 164 away from the roller brush 100 as a reference, the length of the gap between the cleaning member 120 and the second support member 164 is the second length c, the second length c is an arc structure at one end, the radius of the second length c is the sum of the radius of the roller 110 and the length of the second support member 164 protruding from the roller 110, one end of the second length c is the second support member 164 away from the roller 110 and an end point toward the cleaning member 120, and the other end of the second length c is the cleaning member 120 away from the roller 110 and an end point toward the second support member 164.

[0151] The ratio of the first length d to the second length c is greater than 0 and less than or equal to 0.8, so as to ensure that the first support member 162 , the cleaning member 120 and the second support member 164 are more reasonably distributed on the drum 110 and improve the cleaning effect of the cleaning member 120 .

[0152] Specifically, the first length d is smaller than the second length c, and a ratio between the first length d and the second length c may be equal to 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7 or 0.8.

[0153] Furthermore, the ratio of the distance between one end of the first support member 162 away from the cylinder 110 and toward the cleaning member 120 and one end of the cleaning member 120 away from the cylinder 110 and toward the first support member 162, and the distance between one end of the second support member 164 away from the cylinder 110 and toward the cleaning member 120 and one end of the cleaning member 120 away from the cylinder 110 and toward the second support member 164 is greater than 0 and less than or equal to 0.8.

[0154] As shown in Figure 3, in some embodiments, optionally, along the cleaning rotation direction e of the roller brush 100, with the end of the second support member 164 away from the drum 110 as a reference, the length of the gap between the cleaning member 120 and the second support member 164 is a second length c, and the second length c is not greater than 10 mm.

[0155] In this embodiment, along the cleaning rotation direction of the roller brush 100, with the end of the second support member 164 away from the roller brush 100 as a reference, the length of the gap between the cleaning member 120 and the second support member 164 is the second length c, the second length c is an arc structure at one end, the radius of the second length c is the sum of the radius of the roller 110 and the length of the second support member 164 protruding from the roller 110, one end of the second length c is the second support member 164 away from the roller 110 and an end point toward the cleaning member 120, and the other end of the second length c is the cleaning member 120 away from the roller 110 and an end point toward the second support member 164.

[0156] Furthermore, the second length is no greater than 10 mm to ensure that the roller brush 100 is compact, so that the first support member 162 , the cleaning member 120 and the second support member 164 are more compact.

[0157] Specifically, the second length may be equal to 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm or 10 mm.

[0158] As shown in FIG. 4 , in some embodiments, optionally, the first support member 162A is a flexible support member, and the height of the first support member 162A protruding from the drum 110 is greater than the height of the cleaning member 120A protruding from the drum 110 .

[0159] In this embodiment, the first support member 162A is a flexible support member. The height of the first support member 162A protruding from the roller 110 is greater than the height of the cleaning member 120A protruding from the roller 110, so that the first support member 162 can lift hair or slender filaments and reduce the possibility of hair or slender filaments being embedded in the cleaning member 120.

[0160] Specifically, the first support member 162 can be made of rubber or leather.

[0161] As shown in FIG. 4 , in some embodiments, optionally, the first support member 162B is a hard support member, and the height of the first support member 162B protruding from the drum 110 is smaller than the height of the cleaning member 120B protruding from the drum 110 .

[0162] In this embodiment, the first support member 162B is a hard support member. The height of the first support member 162B protruding from the roller 110 is less than the height of the cleaning member 120B protruding from the roller 110, thereby ensuring that the cleaning member 120 can clean the surface to be cleaned, avoiding the situation where the cleaning member 120 cannot contact the surface to be cleaned due to the first support member 162 being too high, and improving the cleaning effect of the roller brush 100.

[0163] Specifically, the first support member 162 can be made of plastic or the like.

[0164] As shown in FIG. 4 , in some embodiments, optionally, the second support member 164B is a flexible support member, and the height of the second support member 164B protruding from the drum 110 is greater than the height of the cleaning member 120B protruding from the drum 110 .

[0165] In this embodiment, the second support member 164B is a flexible support member. The height of the second support member 164B protruding from the roller 110 is greater than the height of the cleaning member 120B protruding from the roller 110, so that the second support member 164 can lift hair or slender filaments and reduce the possibility of hair or slender filaments being embedded in the cleaning member 120.

[0166] Specifically, the second support member 164 can be made of rubber or leather.

[0167] As shown in FIG. 4 , in some embodiments, optionally, the second support member 164A is a hard support member, and the height of the second support member 164A protruding from the drum 110 is smaller than the height of the cleaning member 120A protruding from the drum 110 .

[0168] In this embodiment, the second support member 164A is a hard support member. The height of the second support member 164A protruding from the roller 110 is less than the height of the cleaning member 120A protruding from the roller 110, thereby ensuring that the cleaning member 120 can clean the surface to be cleaned, avoiding the cleaning member 120 being unable to contact the surface to be cleaned due to the second support member 164 being too high, and improving the cleaning effect of the roller brush 100.

[0169] Specifically, the second support member 164 can be made of plastic or the like.

[0170] As shown in FIG. 2 , the first support member 162 and the second support member 164 are both flexible support members. The height of the first support member 162 and the second support member 164 protruding from the drum 110 is greater than the height of the cleaning member 120 protruding from the drum 110 .

[0171] As shown in FIG. 2 to FIG. 4 , in some embodiments, optionally, the support member 160 and the drum 110 are fixedly connected, or the support member 160 and the drum 110 are detachably connected.

[0172] In this embodiment, the support member 160 and the drum 110 are fixedly connected, thereby improving the connection strength between the support member 160 and the drum 110 .

[0173] Alternatively, the support member 160 and the roller 110 are detachably connected, so that the support member 160 is replaceable, which facilitates the repair and maintenance of the roller brush 100.

[0174] As shown in FIG. 2 to FIG. 4 , in some embodiments, optionally, the first support member 162 and the drum 110 are fixedly connected, or the first support member 162 and the drum 110 are detachably connected.

[0175] In this embodiment, the first support member 162 is fixedly connected to the drum 110 , and the second support member 164 is fixedly connected to the drum 110 , thereby improving the connection strength between the first support member 162 and the drum 110 , and improving the connection strength between the second support member 164 and the drum 110 .

[0176] Alternatively, the first support member 162 and the roller 110 are fixedly connected, and the second support member 164 and the roller 110 are detachably connected, thereby improving the connection strength between the first support member 162 and the roller 110, making the second support member 164 replaceable, and facilitating the repair and maintenance of the roller brush 100.

[0177] As shown in FIG. 2 to FIG. 4 , in some embodiments, optionally, the second support member 164 and the drum 110 are fixedly connected, or the second support member 164 and the drum 110 are detachably connected.

[0178] In this embodiment, the first support member 162 and the roller 110 are detachably connected, and the second support member 164 and the roller 110 are fixedly connected, so that the first support member 162 is replaceable, which facilitates the repair and maintenance of the roller brush 100 and improves the connection strength between the second support member 164 and the roller 110.

[0179] Alternatively, the first support member 162 and the roller 110 are detachably connected, and the second support member 164 and the roller 110 are detachably connected, so that the first support member 162 is replaceable, which is convenient for the repair and maintenance of the roller brush 100, and the second support member 164 is replaceable, which is convenient for the repair and maintenance of the roller brush 100.

[0180] In some embodiments, optionally, the cleaning member 120 can be hard bristles or soft bristle strips.

[0181] The roller brush provided in the present application has a height of the cleaning member 120 protruding from the roller 110 that is less than the height of at least one of the first support member 162 and the second support member 164 protruding from the roller 110, and the difference a is controlled between 0 and 2 mm. The height of the first support member 162 protruding from the roller 110 is less than the first length d, and the first length d is the length of the gap between the cleaning member 120 and the first support member 110 with the end of the first support member 162 facing away from the roller 110 as the reference.

[0182] Optionally, the first support member 162 is a flexible support member; and optionally, the second support member 164 is a rigid support member.

[0183] When the first supporting member 162 or the second supporting member 164 is a rigid supporting member, the height of the rigid supporting member protruding from the drum 110 is smaller than the height of the cleaning member 120 protruding from the drum 110 .

[0184] In the related art, the friction generated by the relative movement between the brush body in the roller brush and the ground is relatively large, which results in relatively large noise.

[0185] As shown in Figures 5 and 6, the present application proposes a roller brush 100, comprising: a roller 110; a plurality of second cleaning members 122, which are arranged in sequence along the circumference of the roller 110; a plurality of third cleaning members 138, which are arranged in sequence along the circumference of the roller 110, and the second cleaning members 122 and the third cleaning members 138 are arranged at intervals; wherein the thickness of the second cleaning member 122 at one end connected to the roller 110 is greater than the thickness of the second cleaning member 122 at the end away from the roller 110.

[0186] The roller brush 100 proposed in this application can be used in a sweeping robot. When the sweeping robot is operating, the roller brush 100 can contact the ground to clean the ground. The roller brush 100 includes a roller 110, a plurality of second cleaning members 122, and a plurality of third cleaning members 138. As shown in FIG7 , the plurality of second cleaning members 122 are sequentially connected to the roller 110 along the circumference of the roller 110, and the plurality of third cleaning members 138 are sequentially connected to the roller 110 along the circumference of the roller 110, with the second cleaning members 122 and the third cleaning members 138 spaced apart. When the sweeping robot is removing dust from the ground, the roller 110 can drive the second cleaning members 122 and the third cleaning members 138 to rotate relative to the ground. The second cleaning members 122 and the third cleaning members 138 alternately contact and brush the ground to sweep up dust and other impurities on the ground and clean the ground. In one possible embodiment, the second cleaning members 122 and the third cleaning members 138 are rubber brushes.

[0187] Furthermore, the thickness of the end of the second cleaning member 122 connected to the drum 110 is greater than the thickness of the end of the second cleaning member 122 away from the drum 110, that is, the end of the second cleaning member 122 that contacts the ground is thinner, and the end of the second cleaning member 122 connected to the drum 110 is thicker. It can be understood that when the drum 110 drives the second cleaning member 122 and the third cleaning member 138 to rotate relative to the ground, the second cleaning member 122 and the third cleaning member 138 move relative to the ground. Since the second cleaning member 122 and the third cleaning member 138 are in contact with the ground, friction exists between the second cleaning member 122 and the third cleaning member 138 and the ground. In the case where the second cleaning member 122 and the third cleaning member 138 are configured as rubber brushes, the friction between the second cleaning member 122 and the third cleaning member 138 and the ground is relatively large, which may cause a large noise. In order to reduce noise while ensuring the cleaning ability of the roller brush 100, the present application sets the second cleaning member 122 to a structure with a thin end in contact with the ground and a thick end connected to the roller 110. This can not only ensure that the second cleaning member 122 is in full contact with the ground, so that the second cleaning member 122 has a good dust sweeping ability, but also reduce the friction between the second cleaning member 122 and the ground, thereby reducing noise.

[0188] By setting the thickness of the end of the second cleaning member 122 connected to the roller 110 to be greater than the thickness of the end of the second cleaning member 122 away from the roller 110, the end of the second cleaning member 122 that contacts the ground can be thinned. This can not only ensure sufficient contact between the second cleaning member 122 and the ground, so that the second cleaning member 122 has good dust sweeping ability, but also reduce the friction between the second cleaning member 122 and the ground, thereby reducing noise.

[0189] In some embodiments, optionally, as shown in Figures 5 and 6, any second cleaning member 122 includes: a brush root portion 124, connected to the roller 110; a brush top portion 128, located at the end of the brush root portion 124 away from the roller 110, and the thickness of the brush top portion 128 is less than the thickness of the brush root portion 124; a transition portion 126, the two ends of the transition portion 126 are respectively connected to the brush root portion 124 and the brush top portion 128, and the thickness of the transition portion 126 gradually decreases in the direction away from the roller 110.

[0190] In this embodiment, the structure of the second cleaning member 122 is further defined. Each second cleaning member 122 includes a brush root 124, a brush top 128, and a transition portion 126. The transition portion 126 is used to connect the brush root 124 and the brush top 128. The brush root 124 is connected to the drum 110, and the brush top 128 is located at the end of the transition portion 126 facing away from the drum 110. The brush top 128 is used to contact the ground. In the direction away from the drum 110, the brush root 124, the transition portion 126, and the brush top 128 are connected in sequence. The brush top 128 is thinner than the brush root 124, that is, the portion of the second cleaning member 122 connected to the drum 110 is thicker, and the portion of the second cleaning member 122 that contacts the ground is thinner. As shown in Figure 5, the thickness of the brush top 128 is a3, and the thickness of the brush root 124 is b3. A3 and b3 satisfy a3<b3. In this way, the portion where the second cleaning member 122 is connected to the drum 110 (i.e., the brush base 124) has a higher strength, reducing the possibility of the second cleaning member 122 breaking off from the drum 110 or deforming, and allowing the second cleaning member 122 to be more firmly connected to the drum 110. In addition, by making the thinner end of the second cleaning member 122 (i.e., the brush top 128) contact the ground, the friction between the second cleaning member 122 and the ground can be reduced, thereby reducing noise.

[0191] Furthermore, the transition portion 126 connects to the brush base 124 and brush top 128 at both ends, with the thickness of the transition portion 126 gradually decreasing as it moves away from the drum 110. Understandably, if the brush base 124 were directly connected to the brush top 128, the sudden change in thickness would generate significant stress at the junction, making deformation or breakage more likely. By providing a gradually decreasing thickness transition portion 126 between the brush top 128 and brush base 124, stress concentration can be avoided, improving the reliability of the second cleaning member 122 and extending its service life.

[0192] In some embodiments, optionally, the thickness of the brush root 124 ranges from 0.8 mm to 1.2 mm, and the thickness of the brush top 128 ranges from 0.6 mm to 0.7 mm.

[0193] In this embodiment, the dimensions of the brush root 124 and the brush top 128 are limited. Specifically, the thickness of the brush root 124 ranges from 0.8 mm to 1.2 mm, and the thickness of the brush top 128 ranges from 0.6 mm to 0.7 mm. By limiting the thickness range of the brush root 124 to 0.8 mm to 1.2 mm, the strength of the brush root 124 can be made to meet the requirements of use, ensuring that the second cleaning member 122 can be firmly connected to the drum 110 and preventing the brush root 124 from breaking or bending. By limiting the thickness range of the brush top 128 to 0.6 mm to 0.7 mm, the friction between the brush top 128 and the ground can be reduced while ensuring the cleaning ability of the brush top 128, thereby reducing noise.

[0194] In some embodiments, optionally, as shown in FIG. 6 , along a direction away from the drum 110 , a ratio of a height of the brush top 128 to a height of the second cleaning member 122 is greater than or equal to 0.5.

[0195] In this embodiment, a range of values ​​is defined for the ratio of the height of the brush top 128 to the height of the second cleaning member 122. Specifically, in a direction away from the drum 110, the ratio of the height of the brush top 128 to the height of the second cleaning member 122 is greater than or equal to 0.5. As shown in Figure 6, the height of the brush top 128 is f1, and the height of the second cleaning member 122 is f2, where f1 and f2 satisfy f1 / f2 ≥ 0.5. It is understood that the magnitude of the friction between the brush top 128 and the ground is related to the height of the brush top 128. Given a certain thickness of the brush top 128, the greater the height of the brush top 128, the greater the bending ability of the brush top 128, the lower the friction between the brush top 128 and the ground, and the lower the noise generated. To this end, the present application limits the range of the ratio of the height of the brush top 128 to the height of the second cleaning member 122 to greater than or equal to 0.5, thereby effectively reducing the friction between the second cleaning member 122 and the ground and significantly reducing noise.

[0196] In some embodiments, optionally, as shown in Figure 6, the roller brush 100 is used for a sweeping robot. When the sweeping robot is running, the rotation direction e of the roller brush 100 is in the forward direction (the forward rotation direction of the roller brush 100 is shown by the arrow in Figure 6), and the transition portion 126 has a first surface 130 and a second surface 132 that are opposite to each other. When the roller brush 100 rotates in the forward direction, the first surface 130 of the transition portion 126 moves in a direction toward the second surface 132 of the transition portion 126, and the first surface 130 of the transition portion 126 is a slope.

[0197] In this embodiment, the transition portion 126 is defined. The roller brush 100 can be used in a sweeping robot. When the sweeping robot is running, the roller brush 100 can rotate in the forward direction. Specifically, the roller 110 rotates in the forward direction, and the roller 110 drives the second cleaning member 122 and the third cleaning member 138 to rotate in the forward direction. The transition portion 126 has a first surface 130 and a second surface 132 that are opposite to each other. When the roller brush 100 rotates in the forward direction, the first surface 130 of the transition portion 126 moves in a direction toward the second surface 132 of the transition portion 126. When the sweeping robot cleans the ground, the second cleaning member 122 can contact the ground. When the roller brush 100 rotates in the forward direction, the first surface 130 of the transition portion 126 moves in a direction toward the second surface 132 of the transition portion 126. The direction of the friction force from the ground on the second cleaning member 122 is from the second surface 132 to the first surface 130.

[0198] Furthermore, the first surface 130 of the transition portion 126 is an inclined surface. In a direction away from the drum 110, the first surface 130 of the transition portion 126 extends in a direction toward the second surface 132 of the transition portion 126, so that the thickness of the transition portion 126 gradually decreases in a direction away from the drum 110. Since the first surface 130 of the transition portion 126 is set as an inclined surface, the transition portion 126 can provide a certain support for the brush top 128, thereby overcoming the friction force on the brush top 128 and preventing excessive deformation of the brush top 128, thereby ensuring that the second cleaning member 122 has sufficient cleaning ability.

[0199] In some embodiments, optionally, as shown in FIG. 5 , the second cleaning member 122 and the third cleaning member 138 are spirally arranged along the axial direction of the drum 110 , and the spiral directions of the second cleaning member 122 and the third cleaning member 138 are opposite to the forward rotation direction of the roller brush 100 .

[0200] In this embodiment, the second cleaning member 122 and the third cleaning member 138 are further defined. The second cleaning member 122 and the third cleaning member 138 are spirally arranged along the axial direction of the drum 110. The spiral direction of the second cleaning member 122 and the third cleaning member 138 is opposite to the forward rotation direction of the roller brush 100. The direction of the arrow in Figure 5 indicates the forward rotation direction of the roller brush 100. This structure makes it easier for the second cleaning member 122 and the third cleaning member 138 to clean the floor, improves the cleaning efficiency of the roller brush 100, and reduces the possibility of filamentary structures such as hair becoming entangled in the second cleaning member 122 and the third cleaning member 138.

[0201] In some embodiments, optionally, as shown in Figures 7 and 8, the edge of the end of any second cleaning member 122 facing away from the roller 110 has a beveled portion 134, and the thickness of the beveled portion 134 gradually decreases in the direction away from the roller 110. The beveled portion 134 has an inclined surface 136, and the inclined surface 136 extends obliquely along the surface of the brush top 128. The inclined surface 136 and the first surface 130 of the transition portion 126 are located on the same side of the second cleaning member 122.

[0202] In this embodiment, the structure of the second cleaning member 122 is further defined. The edge of any second cleaning member 122 facing away from the roller 110 has a beveled portion 134. When the roller brush 100 is cleaning the floor, the beveled portion 134 contacts the floor to reduce the impact of the second cleaning member 122 against the floor, thereby further reducing the noise generated by the friction between the second cleaning member 122 and the floor, and reducing the wear of the second cleaning member 122, thereby extending the service life of the second cleaning member 122. Specifically, the thickness of the beveled portion 134 gradually decreases in the direction away from the roller 110. The beveled portion 134 has an inclined surface 136 that extends obliquely along the surface of the brush top 128. The inclined surface 136 and the first surface 130 of the transition portion 126 are located on the same side of the second cleaning member 122. The spiral direction of the inclined surface 136 is opposite to the forward rotation direction of the roller brush 100. When the roller brush 100 cleans the floor, the drum 110 drives the multiple second cleaning members 122 to contact the floor in sequence. When the roller brush 100 rotates in the forward direction, the inclined surface 136 of the beveled portion 134 contacts the floor first. Since the inclined surface 136 is inclined, the inclined surface 136 reduces friction, thereby further reducing the noise generated when the second cleaning members 122 rub against the floor, reducing the wear of the second cleaning members 122, and extending the service life of the second cleaning members 122.

[0203] In some embodiments, optionally, as shown in FIG. 6 , along a direction away from the drum 110 , the height of the second cleaning member 122 is greater than the height of the third cleaning member 138 .

[0204] In this embodiment, the second cleaning member 122 and the third cleaning member 138 are further defined. The second cleaning member 122 and the third cleaning member 138 have different heights. Specifically, in a direction away from the drum 110, the second cleaning member 122 is taller than the third cleaning member 138. As shown in FIG6 , the height of the second cleaning member 122 is f2, and the height of the third cleaning member 138 is f3, where f2 and f3 satisfy f2>f3. It is understood that if the height of the second cleaning member 122 is shorter than the third cleaning member 138, or if the second cleaning member 122 and the third cleaning member 138 are the same height, while ensuring contact between the third cleaning member 138 and the ground, the interference fit between the second cleaning member 122 and the ground is reduced compared to a configuration in which the second cleaning member 122 is taller than the third cleaning member 138. Because the end of the second cleaning member 122 that contacts the ground is thinner, insufficient interference fit between the second cleaning member 122 and the ground can result in insufficient friction between the second cleaning member 122 and the ground, thereby resulting in insufficient cleaning ability of the second cleaning member 122. In order to ensure that the second cleaning member 122 has sufficient cleaning ability, the present application sets the height of the second cleaning member 122 to be higher than the third cleaning member 138, so that there is a larger interference fit between the second cleaning member 122 and the ground, so that the second cleaning member 122 has sufficient cleaning ability.

[0205] In some embodiments, optionally, along the extension direction of the third cleaning member 138 away from the drum 110 , the thickness of the third cleaning member 138 remains unchanged.

[0206] In this embodiment, the third cleaning member 138 is defined. The thickness of the third cleaning member 138 remains constant along its extension direction away from the drum 110. By providing the third cleaning member 138 of constant thickness in the roller brush 100, the third cleaning member 138 can assist in cleaning the second cleaning member 122, further enhancing the cleaning capability of the roller brush 100.

[0207] In some embodiments, optionally, the plurality of second cleaning members 122 are evenly distributed along the circumference of the drum 110 , and the plurality of third cleaning members 138 are evenly distributed along the circumference of the drum 110 .

[0208] In this embodiment, the distribution positions of the second cleaning members 122 and the third cleaning members 138 are defined. Specifically, the plurality of second cleaning members 122 are evenly distributed along the circumference of the drum 110, and the plurality of third cleaning members 138 are evenly distributed along the circumference of the drum 110. This ensures that the second cleaning members 122 and the third cleaning members 138 regularly contact the ground, ensuring that the roller brush 100 has a more stable cleaning performance. Furthermore, the force applied to the roller brush 100 is more stable, avoiding sudden changes in the force applied to the roller brush 100 and ensuring stable operation of the roller brush 100.

[0209] In some embodiments, the second cleaning member 122 and the third cleaning member 138 may be detachably connected to the drum 110 .

[0210] In this embodiment, the second cleaning member 122 and the third cleaning member 138 are defined. Specifically, the second cleaning member 122 and the third cleaning member 138 are detachably connected to the drum 110, so that the user can clean and replace the second cleaning member 122 and the third cleaning member 138, thereby improving the user's convenience.

[0211] With technological advancements and improvements in quality of life, cleaning equipment that helps with cleaning is becoming increasingly widespread. Common cleaning equipment, such as floor scrubbers and robot vacuums, all use roller brushes to clean the floor. The mechanical force of the rotating roller brush effectively removes debris. In the prior art, there is a full-rubber roller brush with multiple scraping strips made of a rubber material disposed on its outer circumference. As the roller brush rotates, the multiple scraping strips sequentially scrape different locations on the floor, thereby cleaning the floor.

[0212] However, the existing full rubber roller brush has a variety of unreasonable structural size settings:

[0213] For example, the distance between adjacent scraping bars is too close or too far. When the two are set too close, the adjacent scraping bars are easily deformed and collided with each other when the roller brush is cleaning the floor, reducing the ground contact area of ​​the roller brush and affecting the cleaning effect. When the two are set too far, the scraping bars 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.

[0214] Furthermore, in order to improve the cleaning effect of the roller brush, there is a solution to enlarge the surface area of ​​the side of the scraper close to the ground, thereby increasing the contact area of ​​the scraper on the ground. However, the large contact area of ​​a single scraper with the ground will increase the noise of the scraper hitting the ground.

[0215] Based on this, the present application provides a roller brush assembly 200, as shown in Figures 9 to 11. Figure 9 shows a schematic diagram of a partial structure of the roller brush assembly 200, and Figures 10 and 11 are partial enlarged views. The roller brush assembly 200 includes a housing 210 and a roller brush 100. The housing 210 has an inner cavity 212. The roller brush 100 is disposed in the inner cavity 212 and is rotatably connected to the housing 210. At least a portion of the roller brush 100 extends out of the inner cavity 212 for contacting the cleaning floor. It should be noted that the dotted lines in Figures 9 to 14 of the present application are auxiliary lines made for the convenience of explanation and do not exist in the actual structure of the roller brush 100.

[0216] Specifically, the roller brush assembly 200 has a cleaning state for performing cleaning operations on the ground. When the roller brush assembly 200 is in the cleaning state, the roller brush 100 rotates in a circle relative to the shell 210 and moves in a set direction, thereby continuously scraping up garbage on the ground. The garbage enters the inner cavity and is sucked away, thereby completing the cleaning.

[0217] Specifically, as shown in Figures 12 and 13, Figure 12 shows an axial view of the roller brush 100, and Figure 13 shows a cross-sectional schematic diagram of the roller brush 100. The roller brush 100 includes a roller 110, a third cleaning member 140 and a fourth cleaning member 148. The third cleaning member 140 and the fourth cleaning member 148 are arranged on the roller 110 at intervals from each other along the circumference of the roller brush 100.

[0218] The roller brush 100 is rotatably connected to the shell 210 through the roller 110. Specifically, an axis can be set inside the roller 110 to be rotatably connected to the shell 210, or a cover can be set at both ends of the roller 110 to cover and rotatably connect to the shell 210. This application does not limit this.

[0219] When the roller brush 100 rotates and cleans the floor, the drum 110 rotates, causing the third cleaning member 140 and the fourth cleaning member 148 to contact the floor in turn, scraping off water stains, dirt, and other impurities on the floor. The third cleaning member 140 and the fourth cleaning member 148 can be made of a full rubber scraper structure made of rubber, resin, or other materials, which has a certain hardness to ensure cleaning power. At the same time, when the third cleaning member 140 and the fourth cleaning member 148 are subjected to the force of the floor, they deform and bend in the opposite direction of the movement of the roller brush 100, thereby better fitting to the floor and cleaning the floor.

[0220] As shown in Figure 12, in this embodiment, the third cleaning member 140 has a third surface 144, and the fourth cleaning member 148 has a fourth surface 150, defining a first direction K opposite to the rotation direction e of the roller brush 100, and the third surface 144 and the fourth surface 150 are arranged toward the first direction K. As shown in Figure 14, a reference plane perpendicular to the axial direction of the roller 110 and passing through the third cleaning member 140 and the fourth cleaning member 148 is defined, the outer surface of the roller 110 and the reference plane have a reference intersection line Y1, the third surface 144 and the reference plane have a first intersection line Y2, the first intersection line and the reference intersection line have an intersection point G, the fourth surface 150 and the reference plane have a second intersection line Y3, and the second intersection line and the reference intersection line have an intersection point I.

[0221] It can be understood that the third surface 144 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 third surface 144. The fourth surface 150 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 fourth surface 150.

[0222] 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 third surface 144 is greater than the width dimension of the fourth surface. In other words, the extension length of the third cleaning member 140 relative to the roller 110 is greater than the extension length of the fourth cleaning member 148 relative to the roller 110. The extension length of the third cleaning member 140 or the fourth cleaning member 148 relative to the roller 110 refers to the dimension of the third cleaning member 140 or the fourth cleaning member 148 extending from one side of the roller 110 to the side of the ground.

[0223] In this way, as the drum 110 rotates, the two cleaning members of different lengths cooperate with each other, allowing the fourth cleaning member 148 to continue cleaning areas not reached by the third cleaning member 140. For example, when cleaning a carpeted surface, the third cleaning member 140 is longer and can reach into the carpet for cleaning, while the fourth cleaning member 148 is shorter and can clean the carpet surface, resulting in a better overall cleaning effect. For example, when cleaning a hard surface, the third cleaning member 140 is longer and will bend and deform more significantly when it contacts the ground, while the fourth cleaning member 148 is shorter and will bend and deform less when it contacts the ground.

[0224] When there is a raised garbage block on the ground, the third cleaning member 140 or the fourth cleaning member 148, when cleaning to that 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 100, thereby deforming and tilting toward the fourth cleaning member 148 or the third cleaning member 140 near the rear side, as shown in Figure 13, which is a cross-sectional view of the roller brush assembly 200. The arrow direction e in Figure 13 represents the rotation direction of the roller brush 100 when working.

[0225] When the third cleaning member 140 is tilted in the opposite direction by the action of the ground, the third cleaning member 140 will deform from the intersection point G, and the third surface 144 will tilt along the first direction K toward the rear fourth cleaning member 148. Similarly, when the fourth cleaning member 148 is tilted in the opposite direction by the action of the ground, the fourth cleaning member 148 will deform from the intersection point I, and the fourth surface 150 will tilt along the first direction K toward the rear third cleaning member 140. When the third cleaning member 140 or the fourth cleaning member 148 tilts and contacts the adjacent fourth cleaning member 148 or the third cleaning member 140, the contact area between the rear third cleaning member 140 or the fourth cleaning member 148 and the ground is affected, thereby reducing the overall contact area of ​​the roller brush 100 and reducing the cleaning effect.

[0226] Therefore, the length of the arc of the reference intersection line Y1 between the intersection point G and the intersection point I 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 contact and interference between the third cleaning member 140 and the fourth cleaning member 148, thereby ensuring the contact area of ​​the roller brush 100. The following analysis is based on the perspective of the deformation of the third cleaning member 140 under stress:

[0227] The arc length S of the portion of the reference intersection line Y1 between the intersection G and the intersection I, that is, S is the arc length of the portion of the outer surface of the drum 110 between the third surface 144 and the fourth surface 150 in its own circumferential direction. When the third cleaning member 140 is subjected to force against the ground, it tilts toward the fourth cleaning member 148 on the rear side along the first direction K. Even if the third cleaning member 140 is completely tilted, from the perspective of the orthographic projection toward the reference plane, Y2 of the third cleaning member 140 does not completely cover S, and the other end point of Y2, that is, the first farthest point J, cannot fall within the projection area of ​​the fourth cleaning member 148. From a three-dimensional perspective, the third surface 144 of the third cleaning member 140 will not completely cover the circumferential portion of the roller 110 between the third cleaning member 140 and the fourth cleaning member 148, that is, the third cleaning member 140 cannot contact the fourth cleaning member 148 on the rear side, and cannot press the fourth cleaning member 148 on the rear side. As a result, as the roller brush 100 rotates, the fourth cleaning member 148 on the rear side can normally clean the ground in front, ensure normal grounding, and improve the cleaning effect.

[0228] Naturally, when the shorter fourth cleaning member 148 contacts the ground and receives force, it tilts toward the third cleaning member 140 at the rear side along the first direction K. Even if the fourth cleaning member 148 completely tilts, from the perspective of the orthographic projection toward the reference plane, Y3 of the fourth cleaning member 148 does not completely cover S, and the other end point of Y3, i.e., the second farthest point M, cannot fall within the projection area of ​​the third cleaning member 140. From a three-dimensional perspective, the fourth surface 150 of the fourth cleaning member 148 does not completely cover the circumferential portion of the roller 110 between the fourth cleaning member 148 and the third cleaning member 140, that is, the fourth cleaning member 148 cannot contact the third cleaning member 140 at the rear side, let alone press on the third cleaning member 140 at the rear side. As a result, as the roller brush 100 rotates, the third cleaning member 140 at the rear side can normally clean the ground in front, ensuring normal ground contact and improving the cleaning effect.

[0229] In this way, in the present application, the third cleaning member 140 and the fourth cleaning member 148 can continuously clean the floor, and the third cleaning member 140 and the fourth cleaning member 148 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 third cleaning member 140 and the fourth cleaning member 148 to achieve efficient, fast and low-noise cleaning.

[0230] Furthermore, L1 of the third cleaning member 140 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.

[0231] In some embodiments, L2 is greater than or equal to 0.5L1 and less than L1. L2 can be 0.5L1, 0.6L1, 0.7L1, 0.8L1, 0.9L1, 0.99L1, etc., so that the width dimension of the fourth surface 150 of the fourth cleaning member 148 is greater than or equal to half of the width dimension of the third surface 144 of the third cleaning member 140, and less than the width dimension of the third surface 144 of the third cleaning member 140.

[0232] In this way, even if the fourth cleaning member 148 falls over, the fourth surface 150 will not be unable to contact the third cleaning member 140 at the rear side, nor will it be able to press the third cleaning member 140 at the rear side. At the same time, the width of the fourth surface 150 is limited to be larger than half of the width of the third surface 144, ensuring that the fourth cleaning member 148 is not too short.

[0233] It can be understood that when cleaning places such as carpets, the third cleaning member 140 and the fourth cleaning member 148 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 fourth cleaning member 148 and the third cleaning member 140, the fourth cleaning member 148 will not be unable to contact the ground due to being too short, thereby affecting the cleaning effect. When the third cleaning member 140 abuts against the ground to produce a first deformation, the shorter fourth cleaning member 148 will correspondingly produce a second deformation with the ground that is smaller than the first deformation.

[0234] At the same time, the circumferential length of the portion of the roller 110 between the third surface 144 and the fourth surface 150, that is, the arc length S of the portion of the reference intersection line between the intersection G and the intersection I, will not be too large compared to the width dimension of the fourth surface, so that the third cleaning member 140 and the fourth cleaning member 148 are arranged more densely. When the roller brush 100 rotates, by ensuring the density of the cleaning members (including the third cleaning member 140 and the fourth cleaning member 148) arranged on the periphery of the roller 110, the third cleaning member 140 and the fourth cleaning member 148 can provide a stronger rotational force during the rotation of the roller 110, thereby ensuring the intensity of the rotating airflow in the inner cavity 212 where the roller brush 100 is located, so as to better roll up the garbage and increase the cleaning efficiency.

[0235] In some embodiments, the roller brush 100 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 third cleaning member 140 and the fourth cleaning member 148 do not need to be separately set to increase the surface of a certain surface, but can be set as regular rectangular strips to form a scraping strip structure, which can not only ensure better cleaning efficiency but also reduce noise.

[0236] It is understandable that in other embodiments, the third cleaning member 140 and the fourth cleaning member 148 may also be irregularly shaped, which is not limited in the present application.

[0237] In some embodiments, as shown in Figure 12, the third cleaning member 140 further has a fifth surface 146. The third surface 144 and the fifth surface 146 are arranged opposite to each other, and along the rotation direction e of the roller brush 100, the fifth surface 146 is arranged upstream of the third surface 144. The third surface 144 points in the direction of the fifth surface 146, which is the thickness direction of the third cleaning member 140. When the roller brush 100 moves with the roller brush assembly 200, the fifth surface 146 of the third cleaning member 140 first contacts the ground. The third surface 144 forms the back side of the third cleaning member 140, and the fifth surface 146 forms the front side of the third cleaning member 140.

[0238] The fourth cleaning member 148 also has a sixth surface 152. The fourth surface 150 and the sixth surface 152 are arranged opposite to each other, the third surface 144 and the fourth surface 150 face the same side, and along the rotation direction e of the roller brush 100, the sixth surface 152 is arranged upstream of the fourth surface 150, and the fourth surface 150 points in the direction of the sixth surface 152, which is the thickness direction of the fourth cleaning member 148. When the roller brush 100 moves with the roller brush assembly 200, the sixth surface 152 of the fourth cleaning member 148 first contacts the ground, the fourth surface 150 forms the back side of the fourth cleaning member 148, and the sixth surface 152 forms the front side of the fourth cleaning member 148.

[0239] It can be understood that when the rotation direction e of the roller brush 100 is clockwise, the first direction K is counterclockwise, starting with the roller brush 100 rotating along e and one of the third cleaning members 140 first abutting the ground. As the roller brush 100 rotates, the fifth surface 146 of the third cleaning member 140 abuts the ground. Then, the third cleaning member 140 drives the fifth surface 146 and the third surface 144 to rotate to the front of the roller brush 100. Then, the sixth surface 152 of the fourth cleaning member 148 abuts the ground. Then, as the roller brush 100 rotates, the fourth cleaning member 148 drives the fourth surface 150 and the sixth surface 152 to rotate to the front of the roller brush 100. Then, as the roller brush 100 rotates, the fifth surface 146 of the next third cleaning member 140 abuts the ground, and so on.

[0240] In this application, the maximum dimension of the third surface 144 in its width direction is considered to be L1, and the maximum dimension of the fourth surface 150 in its width direction is considered to be L2. When the third cleaning member 140 is tilted by force, the third surface 144 tilts toward the side closer to the rear fourth surface 150 and does not contact the rear fourth cleaning member 148. In this case, it is considered that no other part of the third cleaning member 140 is in contact with the fourth cleaning member 148. Similarly, when the fourth cleaning member 148 is tilted by force, the fourth surface 150 tilts toward the side closer to the rear third surface 144 and does not contact the rear third cleaning member 140. In this case, it is considered that no other part of the fourth cleaning member 148 is in contact with the third cleaning member 140.

[0241] It can be understood that the front and rear in this article are both defined as the front when the roller brush 100 rotates in the e direction.

[0242] In one embodiment, the third cleaning member 140 and / or the fourth cleaning member 148 are arranged at an angle relative to the outer surface of the drum 110. At this time, the third surface 144 and the fifth surface 146, and / or the fourth surface 150 and the sixth surface 152 are arranged at an angle relative to the outer surface of the drum 110, so that the third cleaning member 140 is inclined when in contact with the ground, and / or the fourth cleaning member 148 is inclined when in contact with the ground, which can form a shoveling effect on the ground to better clean up the garbage.

[0243] In one embodiment, the tangent line passing through point G is defined as the first tangent line Q1, and the angle between Y2 and the first tangent line Q1 is defined as the first angle v. The tangent line passing through point I is defined as the second tangent line Q2, and the angle between Y3 and the second tangent line Q2 is defined as the second angle w. As shown in FIG14 , FIG14 illustrates the angle v between Y2 and S1, and the angle w between Y3 and S2. When the third cleaning member 140 is tilted relative to the outer surface of the drum 110, v is an acute angle, and when the fourth cleaning member 148 is tilted relative to the outer surface of the drum 110, w is an acute angle.

[0244] Furthermore, the first angle v is greater than or equal to 30° and less than or equal to 75°, and / or the second angle w is greater than or equal to 30° and less than or equal to 75°.

[0245] The first angle v can be 30°, 35°, 40°, 40°, 50°, 55°, 60°, 65°, 70°, 75°, etc., and the second angle w can be 30°, 35°, 40°, 40°, 50°, 55°, 60°, 65°, 70°, 75°, etc. to ensure the effect of removing ground garbage.

[0246] Optionally, the first angle v can be 45° and the second angle w can be 55°, so that the angle at which the third cleaning member 140 contacts the ground is smaller and can better fit the ground, and the angle at which the fourth cleaning member 148 contacts the ground is larger, thereby providing different cleaning effects by forming different contact angles with the ground, thereby removing garbage of different sizes.

[0247] In one embodiment, the third cleaning member 140 is provided with a plurality of protrusions 142. Specifically, the plurality of protrusions are provided on the fifth surface 146, so that when the fifth surface 146 contacts the ground, dust and hair on the ground are effectively scraped off, such as dust and hair hidden in a carpet, thereby improving the cleaning effect.

[0248] The protrusion 142 can be a structure such as an arc-shaped protrusion. Multiple protrusions 142 can be arranged on the side of the fifth surface 146 away from the roller 110 along the length direction of the third cleaning member 140. During the cleaning process, the protrusion 142 is close to the ground, and the hair can be wrapped around each protrusion 142, so that the hair on the ground can be better cleaned.

[0249] In one embodiment, the minimum distance L3 between the third cleaning member 140 and the cavity wall of the inner cavity 212 satisfies the requirement of being greater than 0 mm and less than or equal to 3 mm, and / or, the portion of the third cleaning member 140 extending from the inner cavity 212 forms a contact portion with the ground, and the maximum length of the contact portion in the radial direction of the roller brush 100 is L4, and L4 satisfies the requirement of being greater than 0 mm and less than or equal to 2 mm.

[0250] 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 neither affects the rotation of the roller brush 100 in the inner cavity 212 nor ensures the sealing of the inner cavity 212, thereby avoiding a large gap between the third cleaning member 140 and the inner cavity 212, resulting in dust leakage or air leakage.

[0251] It can be understood that the third cleaning member 140 and the fourth cleaning member 148 are of different lengths. Therefore, when cleaning the floor, the distances between the third cleaning member 140 and the fourth cleaning member 148 and the floor are different. Generally, the size of the third cleaning member 140 abutting the floor is larger than the size of the fourth cleaning member 148 abutting the floor. L4 can be 0.1mm, 0.5mm, 1mm, 1.5mm, 2.0mm, etc.

[0252] Optionally, L4 of the third cleaning member 140 in contact with the ground can be 0.5 mm, which ensures reasonable contact between the third cleaning member 140 and the ground, while allowing the shorter fourth cleaning member 148 to contact the ground to ensure the cleaning effect. At the same time, it avoids excessive contact between the roller brush 100 and the ground, which causes greater friction and the risk of tipping over.

[0253] In one embodiment, the third cleaning member 140 is distributed in an oblique spiral along the axial direction of the roller brush 100 . In this case, the extended spiral line of the third cleaning member 140 along the axial direction of the roller brush 100 is the length direction of the third cleaning member 140 .

[0254] Through the spiral distribution of the third cleaning member 140, the third cleaning member 140 can extend to multiple radial positions on the outer surface of the drum 110. During the rotation of the roller brush 100, the third cleaning member 140 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.

[0255] It is understandable that the fourth cleaning member 148 may also extend in a spiral shape along the axial direction of the roller brush 100. When the fourth cleaning member 148 also extends in a spiral shape along the axial direction of the roller brush 100, during the rotation of the roller brush 100, there are multiple moments when the fourth cleaning member 148 and the third cleaning member 140 simultaneously contact the ground, so that the third cleaning member 140 and the fourth cleaning member 148 work together to deeply clean the ground.

[0256] Furthermore, the pitch P1 of the third cleaning member 140 is 500mm to 2000mm, and P1 can be 500mm, 600mm, 700mm, 800mm, 900mm, 2000mm, 1200mm, 1200mm, 1300mm, 1400mm, 1500mm, 1600mm, 1700mm, 1800mm, 1900mm, 2000mm, etc. The pitch P1 of each third cleaning member 140 can change along the axial direction of the roller brush 100 and is also a constant value. Optionally, it can be constant at 1500mm.

[0257] Furthermore, the pitch of the helix of the fourth cleaning member 148 may be the same as or different from that of the third cleaning member 140 , which is not limited in the present application.

[0258] In one embodiment, the third cleaning member 140 is detachably connected to the roller 110, and / or the fourth cleaning member 148 is detachably connected to the roller 110. When the roller brush 100 needs to be installed in an inner cavity 212 of different sizes, third cleaning members 140 and / or fourth cleaning members 148 of different sizes can be installed according to the specific size of the inner cavity 212.

[0259] In this way, the third cleaning member 140 , the roller 110 and the fourth cleaning member 148 can be formed into a parts library respectively, and can be selectively installed according to actual needs, thereby reducing production costs and improving versatility.

[0260] In one embodiment, the third cleaning member 140 , the fourth cleaning member 148 and the roller 110 are integrally injection molded, that is, the third cleaning member 140 , the fourth cleaning member 148 and the roller 110 are connected into an integrated structure to facilitate the preparation of the roller brush 100 .

[0261] Specifically, after the size of the inner cavity 212 of the shell 210, the spacing L3, and the spacing L4 are determined, the diameter and axial length of the roller 110 of the roller brush 100 are confirmed. At this time, according to actual needs, the pitch of the third cleaning member 140 is set, the first intersection line L1 and the second intersection line L2 are set, and then the roller brush 100 is demolded, thereby standardizing the design process of the roller brush 100 and ensuring that the roller brush 100 has strong cleaning ability and is simple to manufacture.

[0262] According to another aspect of the present application, a separate roller brush 100 according to any of the above embodiments is also provided, so as to be used in various occasions for cleaning while rolling.

[0263] The embodiment of the third aspect of the present application also provides a cleaning device including the roller brush assembly 200 in any of the above embodiments. The cleaning device can be a sweeping robot, a floor scrubber, etc., which is not limited in the present application.

[0264] The cleaning device in the embodiment of the present application has the following effects:

[0265] (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 212 of the shell 210 is ensured while preventing the third cleaning member 140 and the fourth cleaning member 148 from being affected by each other's deformation, thereby increasing the contact area of ​​the roller brush 100, improving the cleaning effect, and reducing noise.

[0266] (2) The third cleaning member 140 is distributed in an oblique spiral along the axial direction of the roller brush 100, and by limiting the pitch of the third cleaning member 140, the contact area between the third cleaning member 140 and the ground is increased, forming a larger closed surface, achieving a good rolling effect and improving the cleaning effect on the ground.

[0267] (3) By limiting the first angle v and the second angle w, the third cleaning member 140 and the fourth cleaning member 148 are inclined relative to the outer surface of the drum 110. The third cleaning member 140 and the fourth cleaning member 148 also form an acute angle when in contact with the ground, thereby forming a shoveling effect and better cleaning the garbage.

[0268] (4) The roller brush 100 is integrally injection molded, thereby standardizing the design and manufacturing process of the roller brush 100, ensuring strong cleaning ability and simple manufacturing.

[0269] As shown in FIG9 , according to the second aspect of the present application, the present application proposes a roller brush assembly 200 , comprising: the roller brush 100 proposed in the embodiment of the first aspect.

[0270] The roller brush assembly 200 proposed in the present application includes the roller brush 100 proposed in the first embodiment, and therefore has all the beneficial effects of the roller brush 100 proposed in the first embodiment, which will not be described one by one here.

[0271] According to a third aspect of the present application, the present application proposes a cleaning device, comprising: the roller brush 100 proposed in the embodiment of the first aspect; or the roller brush assembly 200 proposed in the embodiment of the second aspect.

[0272] The cleaning device proposed in this application includes the roller brush 100 proposed in the first embodiment; or the roller brush assembly 200 proposed in the second embodiment. Therefore, it has all the beneficial effects of the roller brush 100 proposed in the first embodiment; or the roller brush assembly 200 proposed in the second embodiment, which will not be listed one by one here.

[0273] Cleaning equipment includes vacuum cleaners, floor scrubbers, and sweeping robots.

[0274] In this application, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless expressly limited otherwise. Terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art can understand the specific meanings of the above terms in this application based on the specific circumstances.

[0275] In the description of this application, it should be understood that the terms "up", "down", "left", "right", "front", "back", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the components or units referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, should not be understood as limiting this application.

[0276] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present application. In this specification, schematic representations 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 any one or more embodiments or examples.

[0277] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A roller brush, wherein: include: roller; The cleaning member is arranged on the peripheral side of the drum and protrudes from the drum.

2. The roller brush according to claim 1, wherein: Also includes: a supporting member, arranged on the circumference of the drum and at least on one side of the cleaning member; Wherein, the height of the cleaning member protruding from the drum is lower than the height of the supporting member protruding from the drum.

3. The roller brush according to claim 2, wherein: The height of the support member protruding from the drum is a first height, and the height of the cleaning member protruding from the drum is a second height; The difference between the first height and the second height is greater than 0 mm and less than or equal to 2 mm.

4. The roller brush according to claim 2, wherein: The support member includes a first support member and a second support member, at least one of the first support member and the second support member protrudes from the drum at a height higher than the height of the cleaning member protruding from the drum; Along the cleaning rotation direction of the roller brush, the first supporting member is located on the front flow side of the cleaning member, and the second supporting member is located on the rear flow side of the cleaning member.

5. The roller brush according to claim 2, wherein: Taking the end of the support member facing away from the roller as a reference, the length of the gap between the cleaning member and the support member is a first length; The height of the support member protruding from the drum is a first height, and the first height is smaller than the first length.

6. The roller brush according to claim 4, wherein: Along the cleaning rotation direction of the roller brush, with the end of the first support member away from the roller as a reference, the length of the gap between the cleaning member and the first support member is a first length, and the length of the gap between the cleaning member and the second support member is a second length; The ratio between the first length and the second length is greater than 0 and less than or equal to 0.

8.

7. The roller brush according to claim 4, wherein: Along the cleaning rotation direction of the roller brush, with the end of the second support member away from the roller brush as a reference, the length of the gap between the cleaning member and the second support member is a second length, and the second length is not greater than 10 mm.

8. The roller brush according to claim 4, wherein: The first supporting member is a flexible supporting member, and the height of the first supporting member protruding from the drum is greater than the height of the cleaning member protruding from the drum; or The first supporting member is a hard supporting member. The height of the first supporting member protruding from the roller is smaller than the height of the cleaning member protruding from the roller.

9. The roller brush according to claim 4, wherein: The second supporting member is a flexible supporting member, and the height of the second supporting member protruding from the drum is greater than the height of the cleaning member protruding from the drum; or The second supporting member is a hard supporting member. The height of the second supporting member protruding from the roller is smaller than the height of the cleaning member protruding from the roller.

10. The roller brush according to any one of claims 2 to 9, wherein: The support member and the roller are fixedly connected, or the support member and the roller are detachably connected.

11. The roller brush according to any one of claims 2 to 9, wherein: The cleaning element comprises: roller; a plurality of first cleaning members, wherein the plurality of first cleaning members are sequentially arranged along the circumference of the drum; a plurality of second cleaning members, wherein the plurality of second cleaning members are sequentially arranged along the circumference of the drum, and the first cleaning members are spaced apart from the second cleaning members; Wherein, the thickness of the end of the first cleaning member connected to the roller is greater than the thickness of the end of the first cleaning member away from the roller.

12. The roller brush according to claim 11, wherein: Any of the first cleaning members comprises: a brush root connected to the roller; a brush top portion, located at an end of the brush root portion facing away from the roller, wherein the thickness of the brush top portion is smaller than the thickness of the brush root portion; A transition portion, wherein both ends of the transition portion are respectively connected to the brush root portion and the brush top portion, and the thickness of the transition portion gradually decreases in a direction away from the roller.

13. The roller brush according to claim 12, wherein: The thickness of the brush root ranges from 0.8 mm to 1.2 mm, and the thickness of the brush top ranges from 0.6 mm to 0.7 mm.

14. The roller brush according to claim 12, wherein: In a direction away from the drum, a ratio of a height of the brush top to a height of the first cleaning member is greater than or equal to 0.

5.

15. The roller brush according to claim 12, wherein: The roller brush is used for a sweeping robot. When the sweeping robot is running, the roller brush can rotate in a positive direction. The transition portion has a first surface and a second surface that are opposite to each other. When the roller brush rotates in the positive direction, the first surface of the transition portion moves in a direction toward the second surface of the transition portion. The first surface of the transition portion is a slope.

16. The roller brush according to claim 15, wherein: The first cleaning member and the second cleaning member are spirally arranged along the axial direction of the roller, and the spiral direction of the first cleaning member and the second cleaning member is opposite to the forward rotation direction of the roller brush.

17. The roller brush according to claim 15, wherein: The edge of the end of any first cleaning member facing away from the roller has a beveled portion, and the thickness of the beveled portion gradually decreases in the direction away from the roller. The beveled portion has an inclined surface, and the inclined surface extends obliquely along the surface of the top of the brush. The inclined surface and the first surface of the transition portion are located on the same side of the first cleaning member.

18. The roller brush according to any one of claims 11 to 17, wherein: Along a direction away from the drum, a height of the first cleaning member is greater than a height of the second cleaning member.

19. The roller brush according to any one of claims 11 to 17, wherein: Along an extension direction of the second cleaning member away from the drum, the thickness of the second cleaning member remains constant.

20. The roller brush according to any one of claims 11 to 17, wherein: The plurality of first cleaning members are evenly distributed along the circumference of the drum, and the plurality of second cleaning members are evenly distributed along the circumference of the drum.

21. The roller brush according to any one of claims 11 to 17, wherein: The first cleaning member and the second cleaning member are detachably connected to the drum.

22. The roller brush according to claim 1, wherein: The cleaning element comprises: a third cleaning member and a fourth cleaning member, arranged on the drum at intervals along the circumference of the roller brush, the third cleaning member having a third surface, the fourth cleaning member having a fourth surface, defining a first direction opposite to the rotation direction of the roller brush, the third surface and the fourth surface being arranged toward the first direction; A reference plane is defined that is perpendicular to the axial direction of the drum and passes through the third cleaning member and the fourth cleaning member. The outer surface of the drum and the reference plane have a reference intersection line. The third surface and the reference plane have a first intersection line. The first intersection line and the reference intersection line have an intersection point G. The fourth surface and the reference plane have a second intersection line. The second intersection line and the reference intersection line have an intersection point I. 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 third cleaning members and the fourth cleaning members, the length of the reference intersection line between the intersection G and the intersection I 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.

23. The roller brush according to claim 22, wherein: L1 is greater than or equal to 0.5S and less than or equal to 0.8S.

24. The roller brush according to claim 22, wherein: The roller brush satisfies: L2 is greater than or equal to 0.5L1 and less than L1.

25. The roller brush according to claim 24, wherein: L2 is greater than or equal to 0.5L1 and less than or equal to 0.8L1.

26. The roller brush according to claim 22, wherein: The tangent line of the roller passing through point G is defined as the first tangent line, the tangent line of the roller passing through point I is defined as the second tangent line, the angle between the first intersection line and the first tangent line is defined as the first angle, and the angle between the second intersection line and the second tangent line is defined as the second angle; 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°.

27. The roller brush according to claim 22, wherein: The third cleaning member is distributed in an oblique spiral along the axial direction of the roller brush, and / or the fourth cleaning member is distributed in an oblique thread along the axial direction of the roller brush.

28. The roller brush according to any one of claims 22 to 27, wherein: The third cleaning member, the fourth cleaning member and the roller are connected to form an integrated structure.

29. A roller brush assembly, wherein: include: A housing and at least one roller brush according to any one of claims 1 to 28; The shell has an inner cavity, the roller brush is arranged in the inner cavity and is rotatably connected to the shell through the roller, and at least part of the cleaning part of the roller brush extends out of the inner cavity for contacting the ground.

30. The roller brush assembly according to claim 29, wherein: The minimum distance between the third cleaning member of the roller brush and the cavity wall of the inner cavity is L3, and L3 satisfies: greater than 0 mm and less than or equal to 3 mm; and / or, The maximum length of the portion of the third cleaning member extending from the inner cavity in the radial direction of the roller brush is L4, and L4 satisfies: greater than 0 mm and less than or equal to 2 mm.

31. A cleaning device, wherein: include: The roller brush according to any one of claims 1 to 28; or The roller brush assembly according to claim 29 or 30.

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