Cleaning assembly and cleaning robot

Abstract

The embodiment of the utility model provides a cleaning assembly and a cleaning robot, and the cleaning assembly comprises a housing which is provided with a rolling brush cavity for accommodating a rolling brush; the rolling brush is rotatably installed in the rolling brush cavity, the rolling brush is provided with a rolling shaft and a brush part, the end of the rolling shaft is detachably connected with the shell, and the brush part is driven by rotation of the rolling shaft to clean the surface to be cleaned; the cutter is arranged at the position close to the end portion of the rolling shaft and is configured to cut an entanglement wound around the end portion, the projection of the cutter on the surface to be cleaned and the projection of the end portion of the rolling shaft on the surface to be cleaned are at least partially overlapped, and in the entanglement cutting process, the rotating speed of the rolling brush is larger than 900 revolutions per minute and smaller than 1500 revolutions per minute. According to the cleaning robot, entanglements wound around the ends of the rolling shafts can be cut, the cut entanglements can be smoothly sucked away by dust suction equipment, and the influence of the entanglements on the cleaning effect of the cleaning robot is avoided.

Description

Technical Field

[0001] The present disclosure belongs to the technical field related to cleaning equipment, and in particular relates to a cleaning component and a cleaning robot. Background Art

[0002] Cleaning robots currently include sweeping robots, mopping robots, sweeping and mopping robots, floor scrubbers, etc. Sweeping and mopping robots can both sweep and clean the floor, and are becoming more and more common in family life. Sweeping and mopping robots are usually equipped with cleaning components, which usually include dry cleaning components and wet cleaning components. The dry cleaning component usually has a dust collection component and a roller brush component. The dust collection component and the roller brush component can complete sweeping, dust collection and other tasks.

[0003] As the cleaning robot cleans the floor, the hair on the floor can easily enter the roller brush assembly. Some hair cannot be smoothly sucked into the dust box and becomes entangled in the roller brush assembly, affecting the roller brush's cleaning of the floor. Especially when a lot of hair gathers to form hair clusters, which become entangled in certain positions of the roller brush assembly, they will damage the roller brush assembly and affect the service life of the cleaning robot. Utility Model Content

[0004] The purpose of the present disclosure is to provide a cleaning component and a cleaning robot, which can at least solve the technical problem of hair entanglement in the cleaning component. The specific solution is as follows:

[0005] According to a specific embodiment of the present disclosure, the present disclosure provides a cleaning assembly, the cleaning assembly comprising: a housing having a roller brush cavity for accommodating a roller brush;

[0006] A roller brush is rotatably mounted in the roller brush chamber, the roller brush comprises a roller shaft and a brush member, the brush member substantially extends from one end of the roller shaft to the other end of the roller shaft, wherein the end of the roller shaft is detachably connected to the housing, and the brush member cleans the surface to be cleaned under the rotation of the roller shaft;

[0007] A cutter is arranged at a position adjacent to the end of the roller and configured to cut the windings wound around the end, wherein the projection of the cutter on the surface to be cleaned and the projection of the end of the roller on the surface to be cleaned at least partially overlap, the cutter extends substantially in the horizontal direction, and the height of the plane where the cutter is located is lower than the height of the section where the highest point of the roller is located; in the process of cutting the windings, the rotation speed of the roller brush is greater than 900 rpm and less than 1500 rpm; the distance between the cutter head and the end of the roller is 1 mm-2 mm;

[0008] The housing has a cutter mounting portion, the cutter mounting portion is mounted with the cutter, and when the cutter is mounted on the cutter mounting portion, the cutter is located adjacent to the end of the roller.

[0009] In some embodiments, the cutter assembly further comprises a switch member configured to enable the cutter to switch between a storage position and an ejection position.

[0010] In some embodiments, the cleaning component further comprises:

[0011] The abutting member is configured to abut against the switch member to switch the cutter from the storage position to the ejection position.

[0012] In some embodiments, the cutter assembly portion further includes an elastic member, and the elastic member is configured to enable the cutter to switch from the pop-up position to the storage position.

[0013] According to a specific embodiment of the present disclosure, the present disclosure provides a cleaning assembly, the cleaning assembly comprising: a housing having a roller brush cavity for accommodating a roller brush;

[0014] A roller brush is rotatably mounted in the roller brush chamber, the roller brush comprises a roller shaft and a brush member, the brush member substantially extends from one end of the roller shaft to the other end of the roller shaft, wherein the end of the roller shaft is detachably connected to the housing, and the brush member cleans the surface to be cleaned under the rotation of the roller shaft;

[0015] A cutter is arranged at a position adjacent to the end of the roller and configured to cut the windings wound around the end, wherein the projection of the cutter on the surface to be cleaned and the projection of the end of the roller on the surface to be cleaned at least partially overlap, the cutter extends substantially in the horizontal direction, and the height of the plane where the cutter is located is lower than the height of the section where the highest point of the roller is located; in the process of cutting the windings, the rotation speed of the roller brush is greater than 900 rpm and less than 1500 rpm; the distance between the cutter head and the end of the roller is 1 mm-2 mm;

[0016] The roller brush cover is detachably mounted on the shell, wherein the roller brush cover has a cutter mounting portion, the cutter mounting portion is mounted with the cutter, and when the roller brush cover is mounted on the shell, the cutter is located adjacent to the end of the roller.

[0017] In some embodiments, the cutter assembly further comprises a switch member configured to enable the cutter to switch between a storage position and an ejection position.

[0018] In some embodiments, the cleaning component further comprises:

[0019] The abutting member is configured to abut against the switch member to switch the cutter from the storage position to the ejection position.

[0020] In some embodiments, the cutter assembly portion further includes an elastic member, and the elastic member is configured to enable the cutter to switch from the pop-up position to the storage position.

[0021] According to a specific embodiment of the present disclosure, the present disclosure provides a cleaning assembly, the cleaning assembly comprising: a housing having a roller brush cavity for accommodating a roller brush;

[0022] A roller brush is rotatably mounted in the roller brush chamber, the roller brush comprises a roller shaft and a brush member, the brush member substantially extends from one end of the roller shaft to the other end of the roller shaft, wherein the end of the roller shaft is detachably connected to the housing, and the brush member cleans the surface to be cleaned under the rotation of the roller shaft;

[0023] A cutter is arranged at a position adjacent to the end of the roller and is configured to cut the windings wound around the end, wherein the projection of the cutter on the surface to be cleaned at least partially overlaps with the projection of the end of the roller on the surface to be cleaned, and the cutter extends generally in a horizontal direction; during the process of cutting the windings, the rotation speed of the roller brush is greater than 900 rpm and less than 1500 rpm; the distance between the cutter head and the end of the roller is 1mm-2mm.

[0024] In some embodiments, the height of the plane where the cutter is located is lower than the height of the section where the highest point of the roller is located;

[0025] Alternatively, the height of the plane where the cutter is located is substantially the same as the height of the section where the highest point of the roller is located.

[0026] According to a specific embodiment of the present disclosure, the present disclosure provides a cleaning assembly, the cleaning assembly comprising: a housing having a roller brush cavity for accommodating a roller brush;

[0027] A roller brush is rotatably mounted in the roller brush chamber, the roller brush comprises a roller shaft and a brush member, the brush member substantially extends from one end of the roller shaft to the other end of the roller shaft, wherein the end of the roller shaft is detachably connected to the housing, and the brush member cleans the surface to be cleaned under the rotation of the roller shaft;

[0028] A cutter is arranged at a position adjacent to the end of the roller and is configured to cut the winding material wound around the end, wherein a projection of the cutter on the surface to be cleaned at least partially overlaps with a projection of the end of the roller on the surface to be cleaned, and during the process of cutting the winding material, a rotation speed of the roller brush is greater than 900 rpm and less than 1500 rpm.

[0029] In some embodiments, the distance between the cutter head and the end of the roller is 1 mm-2 mm.

[0030] In some embodiments, the cutter extends substantially in a horizontal direction, and the height of the plane where the cutter is located is lower than the height of the section where the highest point of the roller is located.

[0031] In some embodiments, the housing has a cutter mounting portion, the cutter mounting portion is mounted with the cutter, and when the cutter is mounted on the cutter mounting portion, the cutter is located adjacent to the end of the roller.

[0032] In some embodiments, the cleaning component further comprises:

[0033] The roller brush cover is detachably mounted on the shell, wherein the roller brush cover has a cutter mounting portion, the cutter mounting portion is mounted with the cutter, and when the roller brush cover is mounted on the shell, the cutter is located adjacent to the end of the roller.

[0034] In some embodiments, the cutter assembly further comprises a switch member configured to enable the cutter to switch between a storage position and an ejection position.

[0035] In some embodiments, the cleaning component further comprises:

[0036] The abutting member is configured to abut against the switch member to switch the cutter from the storage position to the ejection position.

[0037] In some embodiments, the cutter assembly portion further includes an elastic member, and the elastic member is configured to enable the cutter to switch from the pop-up position to the storage position.

[0038] In some embodiments, an angle between a line from one end of the brush member to the other end of the brush member and the axial direction of the roller is 30 degrees to 45 degrees.

[0039] In some embodiments, a dust suction port is connected to one side of the rolling brush cavity, and the dust suction port is located on a side of the rolling brush cavity away from the cutter.

[0040] In some embodiments, the cleaning component further comprises a side brush, and a cleaning range of the side brush partially overlaps with a projection of the suction port on the surface to be cleaned.

[0041] In some embodiments, the dust suction port is connected to a dust suction fan, and the suction force generated by the dust suction fan is greater than 10000Pa.

[0042] In some embodiments, in a non-cutting winding work state, the rotation speed of the roller brush is lower than the rotation speed of the roller brush in the process of cutting the winding.

[0043] In some embodiments, there are two roller brushes, and the cutter is located between the two roller brushes.

[0044] In some embodiments, there are 2-4 cutters.

[0045] In some embodiments, the winding material comprises at least one of a hair cluster and a silk thread.

[0046] According to a specific embodiment of the present disclosure, the present disclosure also provides a cleaning robot, comprising a cleaning component as described in any one of the above embodiments.

[0047] Compared with the prior art, the embodiments of the present disclosure have the following technical effects:

[0048] The disclosed embodiment arranges a cutter at a position near the end of the roller of the cleaning component so that the projection of the cutter on the horizontal plane at least partially overlaps with the projection of the end of the roller on the horizontal plane, thereby being able to cut the entangled material wrapped around the end of the roller. The cut entangled material can be smoothly sucked away by the vacuum device, thus avoiding the influence of the entangled material on the cleaning effect of the cleaning robot and also avoiding damage to the cleaning component. In addition, in the process of cutting the entangled material, the rotation speed of the roller brush is greater than 900 rpm and less than 1500 rpm, and the distance between the cutter head and the end of the roller is 1mm-2mm, which can achieve effective cutting of the entangled material.

[0049] The rotation speed of the roller brush disclosed in the present invention cannot be lower than 900 rpm, otherwise, the force applied when the entangled material contacts the cutting edge is too small, and the entangled material cannot be smoothly cut off. At the same time, the rotation speed during cutting cannot be greater than 1500 rpm, because the roller brush rotates too fast, which will generate greater noise and more energy consumption. In addition, if the rotation speed is too fast, larger particles of foreign matter on the ground will be easily brushed to the end of the roller, thereby causing excessive wear on the cutting edge of the cutting knife and even damaging the blade.

[0050] It can be seen from the attached drawings of the experiment that when the roller brush speed reaches 900 rpm, the hair cluster retention rate will drop significantly, from about 60% directly to about 30%, which can meet the purpose of cutting the hair clusters and preventing them from winding around the roller. With the further increase of the speed, when the roller brush speed reaches 1500 rpm, the hair cluster retention rate is basically close to 5%, which has almost cleaned the hair clusters. If the roller brush speed is increased, it will basically maintain the corresponding hair cluster retention rate. Even if the speed is too fast, it cannot form enough contact with the agglomerated hair clusters, and the cutting effect will be slightly worse. In addition, power consumption and noise will also increase significantly. Therefore, the roller brush speed is maintained at 900-1500 rpm, which is an ideal cutting state.

[0051] Further analysis of the relationship between the life of the cutter head and the roller brush speed, the experimental process is also to maintain the distance between the cutter head 231 and the end of the roller 221 at a fixed value, such as 1.5mm, and calculate the service life of the cutter head by continuously cutting a given hair cluster. Among them, the service life of the cutter head refers to the use time of the cutter head from a brand new state to a severely worn state, which is measured in the number of hours of cumulative use. The severely worn state refers to the state when the hair cluster can no longer be cut and a jamming phenomenon occurs. It can be seen from the figure that before the roller brush speed reaches 900 rpm, it is basically in a non-cutting state, and the cutter head can maintain a basically stable service life. When the roller brush speed reaches 900 rpm, it enters the working state of cutting hair clusters, and the service life of the cutter head begins to decrease. When the roller brush speed exceeds 1500 rpm, the service life of the cutter head decreases significantly. If the roller brush speed is too fast, hard foreign objects other than hair (such as strings, cloth strips, etc.) will be sucked into the blade, causing damage to the blade, thereby affecting the service life of the cutter head. Therefore, the roller brush speed is maintained at 900-1500 rpm, which is an ideal cutting state. At this time, the service life of the cutter head is also maintained below a normal wear expectation.

[0052] Since hair clusters are usually most easily cut by the cutter when the thickness is 1mm-3mm, the minimum distance between the cutter head 231 of the cutter 230 and the end of the roller 221 is set to 1mm-2mm, which can effectively clamp the hair cluster between the cutter head 231 and the roller 221, thereby enhancing the contact force between the hair cluster and the cutter head 231, and can better cut the hair cluster, and after the hair cluster is cut, shorter hair fragments are formed, thereby getting out of the entanglement state. If the distance between the cutter head 231 of the cutter 230 and the end of the roller 221 is set to be greater than 2mm, for example, 4mm, at this time, the hair cluster will only be cut by the cutter head 231 when the thickness of the hair cluster reaches about 4mm, but at this time, the hair cluster is in a relatively thick state and it is difficult to cut it, which will damage the blade, or cause the roller brush to lock and cause the risk of damaging the motor. In addition, if the distance between the cutter head 231 of the cutter 230 and the end of the roller 221 is set to less than 1 mm, it is easy to be stuck by hard foreign objects (such as ropes, cloth strips, etc.) accidentally brought into the cutting edge, causing damage to the cutting edge, thereby affecting the service life of the cutter head, or causing the roller brush to lock and cause the risk of damaging the motor. Therefore, the minimum distance between the cutter head 231 of the cutter 230 and the end of the roller 221 is set to 1mm-2mm, which is an optimal cutting distance.

[0053] It is verified through experiments that when the distance between the cutter head 231 of the cutter 230 and the end of the roller 221 is 1 mm, the hair cluster retention rate will be significantly reduced, directly from about 90% to about 30%, which can meet the purpose of cutting the hair clusters and preventing them from being entangled with the roller. As the distance between the cutter head 231 of the cutter 230 and the end of the roller 221 is further increased, when the distance is 1.5 mm, the hair cluster retention rate is basically close to 10%, and the hair clusters are almost cleaned. When the distance is greater than 2 mm, the hair retention rate will be significantly increased. Therefore, setting the minimum distance to 1mm-2mm can effectively cut the hair clusters. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the specific embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the specific embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0055] Figure 1 It is a schematic diagram of the front three-dimensional structure of a cleaning robot provided by an embodiment of the present disclosure.

[0056] Figure 2 It is a schematic diagram of the bottom three-dimensional structure of a cleaning robot provided by an embodiment of the present disclosure.

[0057] Figure 3 It is a schematic diagram of the three-dimensional structure of a cleaning component provided by an embodiment of the present disclosure.

[0058] Figure 4 It is a schematic diagram of the three-dimensional structure of a shell of a cleaning component provided by an embodiment of the present disclosure.

[0059] Figure 5 It is a schematic diagram of the three-dimensional structure from a top view of a cleaning component provided by an embodiment of the present disclosure.

[0060] Figure 6 It is a schematic diagram of the relationship between the hair cluster retention rate / blade head life and the roller brush rotation speed provided by an embodiment of the present disclosure.

[0061] Figure 7 It is a schematic diagram of the end structure of a cleaning component provided by an embodiment of the present disclosure.

[0062] Figure 8 It is a schematic diagram of the position relationship between the cutter and the roller provided in an embodiment of the present disclosure.

[0063] Fig. 9This is a schematic diagram of the relationship between the hair cluster retention rate and the distance between the blades provided by an embodiment of the present disclosure.

[0064] Fig.10 It is a partial enlarged structural schematic diagram of a cutter assembly portion provided in an embodiment of the present disclosure.

[0065] Fig.11 It is a schematic diagram of the roller brush cover structure provided by an embodiment of the present disclosure.

[0066] Description of reference numerals:

[0067] Robot body 100, cleaning component 200, shell 210, roller brush chamber 211, driven end assembly part 212, active end assembly part 213, suction port 214, cutter assembly part 215, cutter assembly part 215', push piece 216, roller brush 220, roller 221, roller end 2211, brush part 222, active end end cover 223, driven end end cover 224, cutter 230, cutter head 231, roller brush cover plate 240, switch part 241, elastic part 242, rag assembly 300, side brush 400. DETAILED DESCRIPTION

[0068] The technical solution of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that the embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0069] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0070] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or device. In the absence of more restrictions, the elements defined by the sentence "comprises a" do not exclude the presence of other identical elements in the product or device including the elements.

[0071] Figure 1-Figure 2 is a schematic diagram of the structure of a cleaning robot according to an exemplary embodiment. The structure of the cleaning robot is not specifically limited. For example, the cleaning robot may be a floor washing robot, a floor mopping robot, a floor sweeping robot, a sweeping and mopping robot, etc. Figure 1-Figure 2 As shown, the present disclosure is described by taking a sweeping and mopping robot as an example.

[0072] The cleaning robot may include a robot body 100 having a control unit, a driving unit, etc. The control unit may control the driving unit to realize automatic movement of the robot. A cleaning component, a rag component, etc. may be installed on the robot body 100, and the control unit may control the operation of the cleaning component and the rag component.

[0073] like Figure 1 The figure shows a schematic diagram of the front three-dimensional structure of the cleaning robot. In order to more clearly describe the behavior of the cleaning robot, the following directions are defined: front and rear axis x, left and right axis y, and up and down axis z. The forward driving direction along the front and rear axis x is marked as "forward", that is, the arrow direction of the front and rear axis x, and the backward driving direction along the front and rear axis x is marked as "backward", that is, the opposite direction of the arrow of the front and rear axis x. The left and right axis y is an axis perpendicular to the front and rear axis x, which is roughly along the direction of the line connecting the centers of the left and right driving wheels. The direction along the arrow of the left and right axis y is "left", and the direction opposite to the arrow of the left and right axis y is "right"; the up and down axis z is an axis perpendicular to the front and rear axis x and the left and right axis y. It is roughly perpendicular to the upper surface of the robot body of the cleaning robot and is usually perpendicular to the ground. The direction along the arrow of the up and down axis z is "upward", and the direction opposite to the arrow of the up and down axis z is "downward".

[0074] like Figure 2 As shown, it is a schematic diagram of the three-dimensional structure of the bottom surface of the cleaning robot. The cleaning robot includes two driving wheels and a cleaning component 200, a rag component 300, and a side brush 400, etc. The cleaning component 200 includes a roller brush, etc. When the cleaning robot is placed on a cleaning surface, the roller brush can be in interference contact with the cleaning surface, and the cleaning component can float up and down. The rag component 300 includes two rotatable rag plates mounted on the robot body 100, one of which can automatically swing outward to achieve cleaning of corner areas, and the rotating rag plate can be automatically lifted to avoid areas that require dry cleaning. For areas that require rag lifting, such as carpet areas, the cleaning component 200 can more effectively remove hair on the carpet, while reducing the possibility of wet hair entangled by the roller brush wetting the carpet, which can further enhance the cleaning experience of the carpet and enhance the user experience. In the forward direction of the cleaning robot, the rag assembly 300 is located behind the cleaning assembly 200. The cleaning assembly 200 can be used to better sweep up entangled objects such as hair clusters and remove them into the suction port, which can prevent the hair clusters from being pushed to the corners by the outward-swinging rag plate and making it more inconvenient to clean, and avoid affecting the user experience due to the outward expansion of the rag. The side brush 400 has multiple long brush pieces, and the side brush 400 can rotate continuously to drive the long brush pieces to clean the garbage on the cleaning path. Since the multiple long brush pieces of the side brush 400 can extend beyond the projection range of the robot body 100, it can clean the corners that the cleaning robot cannot reach.

[0075] like Figure 3 As shown, according to a specific embodiment of the present disclosure, the present disclosure provides a cleaning component 200, which includes: a shell 210, the shell 210 has a roller brush cavity 211 for accommodating a roller brush 220, the shell 210 can be detachably assembled on the robot body 100, and can also be integrally formed with the robot body 100 to form a roller brush cavity 211 for accommodating the roller brush 220; the cleaning component 200 also includes a roller brush 220, the roller brush 220 can be rotatably installed in the roller brush cavity 211, the roller brush 220 has a roller shaft 221 and a brush member 222, wherein the end 2211 of the roller shaft 221 is detachably connected to the shell 210, and the brush member 222 is driven by the rotation of the roller shaft 221 to Cleaning the surface to be cleaned; the cleaning component 200 also includes a cutter 230, which is arranged at a position adjacent to the roller end 2211, and the cutter 230 is configured to cut the winding material wound around the end 2211, wherein the projection of the cutter 230 on the surface to be cleaned and the projection of the roller end 2211 on the surface to be cleaned at least partially overlap, and the cutter 230 generally extends in a direction parallel to the surface to be cleaned. When the surface to be cleaned is the ground, the projection of the cutter 230 on the horizontal plane and the projection of the roller end 2211 on the horizontal plane at least partially overlap, and in the process of cutting the winding material, the rotation speed of the roller brush 220 is greater than 900 rpm and less than 1500 rpm.

[0076] In some embodiments, Figure 3 , Figure 4 As shown, the housing 210 has a roller brush chamber 211 for accommodating a roller brush 220. Both ends of the roller brush chamber 211 have assembly parts for assembling the roller brush 220. The assembly parts generally include an active end assembly part 213 and a driven end assembly part 212, which are respectively used to assemble the active end and the driven end of the roller brush 220. The active end of the roller brush 220 has an active end cover 223 keyed to the roller brush drive output shaft, and the driven end of the roller brush 220 has a driven end cover 224 snapped to the driven end assembly part 212. After the roller brush 220 is assembled in the roller brush chamber 211, it cleans the surface to be cleaned by rotation. The roller brush 220 has a roller shaft 221 and a brush member 222, and the brush member 222 is extended along the axial direction of the roller shaft 221 at a preset angle. When the cleaning robot performs cleaning operations, the roller 221 drives the brush 222 to rotate and sweep the ground. The dust suction fan connected to the cleaning component can form a negative pressure in the roller brush chamber 211, so that the dirt on the ground can be sucked through the dust suction port on the cleaning component.

[0077] In some embodiments, there are multiple brush members 222, each brush member 222 extends in a spiral shape along the axial direction outside the roller 221, and multiple brush members 222 are roughly evenly distributed along the circumference of the roller 221, and the spiral structures of multiple brush members 222 are roughly parallel. By designing the brush member 222 as a spiral structure, the front and rear roller brushes can easily roll up garbage when rotating in opposite directions, and will not generate excessive impact force on the brush member 222 to cause damage, thereby increasing the service life.

[0078] In some embodiments, there are multiple brush members 222, each of which is V-shaped in the axial direction outside the roller 221, and the multiple brush members 222 are roughly evenly distributed along the circumference of the roller 221, and the tips of the V-shaped structures of the multiple brush members 222 point in the same direction in the circumference of the roller 221. By designing the brush members 222 as V-shaped structures, garbage can be easily rolled up when the front and rear roller brushes rotate in opposite directions, and the brush members 222 will not be damaged by excessive impact force, thereby improving the service life.

[0079] In some embodiments, a dust suction port 214 is connected to one side of the roller brush cavity 211, and the dust suction port 214 is biased toward one end of the axial direction of the roller brush 220. The dust suction port 214 can be connected to a dust suction fan through a dust suction air duct, and when the dust suction fan is working, negative pressure can be formed at the dust suction port, and the garbage under the roller brush cavity and the garbage such as hair detached from the roller brush can be sucked into the dust box or dust bag of the cleaning device through the dust suction port.

[0080] In some embodiments, the brush 222 extends along the axial direction of the roller 221, wherein the angle between the line from one end of the brush 222 to the other end and the axial direction of the roller 221 is 30 degrees to 45 degrees. The suction port 214 is disposed toward one end of the axial direction of the roller brush 220. When the winding material is cut off, the debris of the winding material will move with the winding of the brush 222, and the axial tilt structure of 30 degrees to 45 degrees is provided, which is more conducive to the winding material being rolled up, thereby being brought into the suction port 214 disposed toward the axial direction.

[0081] In some embodiments, the suction port is connected to a dust suction fan, and the suction force generated by the dust suction fan is greater than 10000 Pa. The suction force of some cleaning robots is usually around 9000 Pa. By setting a fan with a suction force greater than 10000 Pa, it is not only possible to suck the garbage on the ground, but also to increase the suction force on the cut windings, and further increase the possibility of the windings being sucked into the dust box or dust bag as soon as possible after being cut.

[0082] In some embodiments, the cleaning assembly further includes a side brush 400, and the cleaning range of the side brush 400 partially overlaps with the projection of the dust suction port 214 on the surface to be cleaned. Thus, the interference range of the side brush can cover part of the dust suction port 214, preventing the cut entangled objects from leaking out of the cleaning range of the roller brush. Through the secondary cleaning of the side brush 400, the entangled objects are cleaned to the dust suction port 214 and further smoothly sucked into the dust box or dust bag.

[0083] In some embodiments, Figure 5 As shown, in the axial direction, the roller 221 has a roller end 2211 that exceeds the roller brush 220. When the cleaning robot performs cleaning operations, there will be entangled objects, such as hair clusters, silk threads, etc., entangled on the roller end 2211. If they are not cleaned in time, they may damage the cleaning component 200. For this reason, the embodiment of the present disclosure sets a cutter 230 at a position near the roller end 2211. As the roller brush rotates at a speed greater than 900 rpm and less than 1500 rpm, the cutter 230 smoothly cuts off the entangled objects entangled on the end 2211, and then the entangled objects are sucked into the dust box by the dust suction fan. In the process of cutting the entangled objects, the rotation speed of the roller brush cannot be lower than 900 rpm, otherwise, the force applied when the entangled objects contact the cutting edge of the cutter is too small, and the entangled objects cannot be smoothly cut off. At the same time, the rotation speed during cutting cannot be greater than 1500 rpm. Too fast rotation speed cannot form effective contact with the agglomerated hair clusters, and the cutting effect is worse. The excessively fast rotation of the roller brush will also generate more noise and consume more energy. In addition, if the rotation speed is too fast, larger foreign particles on the ground may be easily brushed to the roller end 2211, thereby causing excessive wear on the cutting edge of the cutter 230 and even damaging the blade.

[0084] For surfaces to be cleaned, especially in cleaning environments such as homes and offices where people frequently come and go, there will be a lot of hair that needs to be cleaned, especially long hair, which tends to be relatively dry after staying on the ground for a long time, and is easy to be adsorbed and gathered to form hair clusters. Generally, hair clusters formed by dozens of hairs are usually thicker than single hairs, forming entanglements similar to ropes. It is difficult to completely clean them by the roller brush alone. As the roller brush rotates, the hair clusters tend to be entangled in the gap at the end of the roller brush and entangled on the roller brush shaft. In severe cases, the roller brush may stop rotating or even damage the cleaning equipment. The present disclosure can effectively remove entanglements such as hair and improve the cleaning effect by setting a cutter and controlling the rotation speed of the roller brush. When the entanglements reach a state that needs to be cleaned, the cleaning robot will automatically or manually enter the working state of removing the entanglements, and clean the entanglements until certain preset conditions are met, and then it is considered that the entanglements have been basically cleaned, wherein the preset conditions are such as the retention rate of the entanglements being less than 30%. The working state of removing entanglements can usually be a state in which the cleaning component is entangled by entanglements and the cleaning component is working. The cleaning component working can be a state in which only entanglements are removed, such as when the cleaning robot is moved away from the cleaning surface, the roller brush rotates and the cutter cuts the entanglements. It can also be a state in which cleaning and entanglement removal are performed simultaneously, that is, when the cleaning robot is not moved away from the cleaning surface, the rotation speed is increased so that the roller brush continues to rotate and clean the cleaning surface while the cutter cuts the entanglements. In short, as long as the end of the roller is entangled with entanglements such as hair clusters and the roller brush rotation speed needs to be increased so that the cutter cuts the entanglements, it can be regarded as a working state of removing entanglements.

[0085] like Figure 6As shown, a relationship diagram of hair cluster retention rate / cutter head life and roller brush speed is given through experiments, and the relationship between hair cluster retention rate and roller brush speed is analyzed. In this experimental process, the distance between the cutter head 231 and the end of the roller 221 is maintained at a constant value, such as 1.5 mm, and the hair cluster retention rate is calculated by continuously adjusting the roller brush speed. The hair cluster retention rate refers to the ratio of the amount of hair remaining after cutting the hair cluster to the amount of hair before cutting the hair cluster. Specifically, a certain amount (which can be weight, volume, etc.) of hair clusters can be placed at the position to be cut before the experimental test, and the cutting process can be started. After cutting, the amount of hair clusters remaining can be checked, and the hair cluster retention rate can be calculated based on the ratio of the two. As can be seen from the figure, when the roller brush speed reaches 900 rpm, the hair cluster retention rate will drop significantly, from about 60% directly to about 30%, which can meet the purpose of cutting the hair clusters and preventing them from winding around the roller. With the further increase of the speed, when the roller brush speed reaches 1500 rpm, the hair cluster retention rate is basically close to 5%, and the hair clusters are almost cleaned. If the roller brush speed is increased, for example, 1600-2000 rpm, it will basically maintain the corresponding hair cluster retention rate. Even too fast a speed cannot form sufficient contact with the agglomerated hair clusters, and the cutting effect will be slightly worse. In addition, power consumption and noise will also increase significantly. Therefore, the roller brush speed is maintained at 900-1500 rpm, which is an ideal cutting state.

[0086] like Figure 6 As shown, combined with the relationship diagram of hair cluster retention rate / cutter head life and roller brush speed given by the experiment, the relationship between the cutter head life and roller brush speed is further analyzed. In this experimental process, the distance between the cutter head 231 and the end of the roller 221 is also maintained at a constant value, such as 1.5 mm, and the service life of the cutter head is calculated by continuously cutting a given hair cluster. The service life of the cutter head refers to the use time of the cutter head from a brand new state to a severely worn state, which is measured in the number of hours of cumulative use. The severely worn state refers to the state where the hair cluster can no longer be cut and a jamming phenomenon occurs. As can be seen from the figure, before the roller brush speed reaches 900 rpm, it is basically in a non-cutting state, and the cutter head can maintain a basically stable service life. When the roller brush speed reaches 900 rpm, it enters the working state of cutting hair clusters, and the service life of the cutter head begins to decrease. When the roller brush speed exceeds 1500 rpm, the service life of the cutter head decreases significantly. If the roller brush speed is too fast, hard foreign objects other than hair (such as strings, cloth strips, etc.) will be sucked into the blade, causing damage to the blade, thus affecting the service life of the cutter head. Therefore, maintaining the roller brush speed at 900-1500 rpm is an ideal cutting state, and the service life of the cutter head is also maintained below a normal wear expectation.

[0087] In some embodiments, in the working state of removing entanglements, the rotation speed of the roller brush 220 is greater than 1100 rpm and less than 1400 rpm. Specifically, the rotation speed of the roller brush 220 can be any rotation speed value such as 1200 rpm, 1260 rpm, 1320 rpm, 1400 rpm, etc. Figure 6 As shown, the hair cluster retention rate is maintained between 5% and 15%, which basically meets the purpose of cleansing the hair clusters.

[0088] In some embodiments, when the cleaning component is in a working state where no entanglements are removed, the rotation speed of the roller brush is less than or equal to the rotation speed of the roller brush in the working state where entanglements are removed. The working state where no entanglements are removed refers to a state where the roller brush is not entangled by entanglements and the roller brush is rotating, such as a state where the cleaning robot is cleaning the floor but is not entangled by entanglements. In this case, when the roller brush is not entangled by entanglements, the rotation speed of the roller brush is reduced to less than the rotation speed of the roller brush in the working state where entanglements are removed, so as to avoid wasting energy due to excessive rotation speed.

[0089] During the normal cleaning process of the cleaning robot, that is, when the cleaning robot is in a non-tangled object removal working state, the rotation speed of the roller brush is usually less than 900 rpm. For example, when the cleaning robot is quietly mopping the floor, its rotation speed is usually around 600 rpm, and during the conventional cleaning process, the rotation speed is usually 600-900 rpm. Since the hair clusters usually have a certain coarseness, at the rotation speed during the cleaning process (for example, less than 900 rpm), even if the hair clusters contact the cutting edge of the cutter, it is difficult to cut them off and get rid of the tangled state due to the insufficient contact force between the hair clusters and the cutting edge. Figure 6 As shown, when the roller brush rotates at a speed of 600-900 rpm, the hair residue is greater than 60%, or even close to 90%, and therefore, the entangled objects cannot be effectively removed. The present disclosure has found through experiments that when the roller brush rotates at a speed greater than 900 rpm, the impact force of the cutter's blade on the entangled objects, especially the hair clusters, can be increased, and the hair clusters can be thrown toward the cutter's blade more easily. The increased impact force can cut the hair clusters off and thus break away from the entangled state at the end of the roller. When the roller brush rotates at a speed less than 1500 rpm, dust will not be generated due to the excessively high speed, and no greater noise will be generated to affect normal work. In the hair removal state, the roller brush rotates at a speed within the above range, which can improve the hair removal effect while not affecting the normal cleaning effect of the cleaning component.

[0090] In some embodiments, when the cleaning robot is in a non-tangled object removal working state, the rotation speed of the roller brush is lower than the rotation speed in the tangled object removal working state. For example, in a conventional non-tangled object removal cleaning process, the rotation speed is usually 600-900 rpm, which can ensure a silent cleaning working state, save energy consumption, and improve user experience. When the hair clusters accumulate to a certain extent and need to be removed, the rotation speed of the roller brush is manually or automatically increased, for example, to 900-1500 rpm, so that the hair cluster removal task can be effectively performed.

[0091] Specifically applied to cleaning robots, AI can be used to detect the position of hair, and when it reaches that position, it is judged as a tangled obstacle. Hair can also be detected through the roller brush speed or other sensors. For example, the speed is significantly reduced under normal output power, indicating that there is a tangled object wrapped around the end of the roller and affecting its rotation. At this time, the output power is increased, the roller brush speed is increased, and the roller brush speed is adjusted to the range of 900-1500 rpm to remove the tangled object. The roller brush speed can also be kept at a fixed value within the range of 900-1500 rpm, for example, it can be maintained at 1100 rpm. As long as there is tangled object, it can be cut off with a cutter. This saves the detection of whether there is tangled object, saves the control of the speed, and thus saves control resources.

[0092] In some embodiments, Figure 7-Figure 8 As shown, Figure 7 A schematic diagram of the structure of a cleaning component equipped with a cutter according to an embodiment of the present disclosure is provided. Figure 8A schematic diagram of the positional relationship between the cutter and the roller of the embodiment of the present disclosure is provided. Optionally, when the cutter 230 is in a working state for removing entanglements, the minimum distance between the cutter head 231 of the cutter 230 and the end of the roller 221 is 1mm-2mm, wherein the minimum distance between the cutter head 231 of the cutter 230 and the end of the roller 221 refers to the closest distance between the end of the cutter head 231 and the cut surface of the roller arc surface. Since hair clusters are usually most easily cut by the cutter when the thickness is 1mm-3mm, the minimum distance between the cutter head 231 of the cutter 230 and the end of the roller 221 is set to 1mm-2mm, which can effectively clamp the hair cluster between the cutter head 231 and the roller 221, thereby enhancing the contact force between the hair cluster and the cutter head 231, and can better cut the hair cluster, and after the hair cluster is cut, shorter hair fragments are formed, thereby getting out of the entanglement state. If the distance between the cutter head 231 of the cutter 230 and the end of the roller 221 is set to be greater than 2mm, for example, 4mm, then the cutter head 231 will only cut the hair clusters when the thickness reaches about 4mm. However, the hair clusters are already very thick and it is difficult to cut them off, which may damage the blade, or cause the roller brush to lock and cause the risk of damaging the motor. In addition, if the distance between the cutter head 231 of the cutter 230 and the end of the roller 221 is set to be less than 1mm, it is easy to be stuck by hard foreign objects (such as cords, cloth strips, etc.) accidentally brought into the blade, causing damage to the blade, thereby affecting the service life of the cutter head, or causing the roller brush to lock and cause the risk of damaging the motor. Therefore, the minimum distance between the cutter head 231 of the cutter 230 and the end of the roller 221 is set to 1mm-2mm, which is an optimal cutting spacing.

[0093] like Fig. 9 As shown in the figure, a relationship diagram between the hair cluster retention rate and the distance between the cutter heads is given through experiments. In this experiment, the rotation speed of the roller brush is maintained at a fixed value, such as 1300 rpm, and the hair cluster retention rate is calculated by continuously adjusting the distance between the cutter head 231 and the end of the roller 221. The definition of the hair cluster retention rate is as described above and will not be repeated here. As can be seen from the figure, when the distance between the cutter head 231 of the cutter 230 and the end of the roller 221 is 1mm, the hair cluster retention rate will drop significantly, from about 90% directly to about 30%, which can meet the purpose of cutting the hair cluster and preventing the hair cluster from winding around the roller. With the further increase of the distance between the cutter head 231 of the cutter 230 and the end of the roller 221, when the distance is 1.5mm, the hair cluster retention rate is basically close to 10%, and the hair cluster is almost cleaned. When the distance is greater than 2mm, the hair retention rate will increase significantly. Therefore, the minimum distance is set to 1mm-2mm to effectively cut the hair cluster.

[0094] In some embodiments, the cutter 230 extends roughly in the horizontal direction, the height of the plane where the cutter 230 is located is lower than the height of the top of the roller 221, and the projection of the cutter head 231 of the cutter 230 in the horizontal plane will fall within the projection range of the roller 221 in the horizontal plane, thereby further ensuring that the cutter head 231 of the cutter 230 has sufficient interference with the hair cluster to smoothly cut off the hair cluster.

[0095] In some embodiments, Figure 3 As shown, the shell 210 has a cutter assembly portion 215, and the cutter assembly portion 215 is equipped with the cutter 230. When the cutter 230 is assembled on the cutter assembly portion 215, the cutter 230 is located near the roller end 2211. The cutter assembly portion 215 is roughly located on both sides of the roller end 2211. The cutter 230 can be at least partially stored inside the cutter assembly portion 215 to avoid scratching the cleaning component or the human body during assembly. When the cutter assembly portion 215 is assembled on the cleaning component 200, the cutter 230 leaks out of the cutter assembly portion 215 and is positioned at the cutting position to facilitate cutting of the winding.

[0096] In some embodiments, Fig.10 As shown, the cutter assembly 215 further includes a switch 241, and the switch 241 is configured to switch the cutter 230 between the storage position and the pop-up position. The switch 241 can move within a certain range of the cutter assembly 215, and the switch 241 is linked with the cutter 230. When the switch 241 is turned on, the cutter 230 extends out of the cutter assembly 215, and when the switch 241 is closed, the cutter 230 retracts into the cutter assembly 215. The switch 241 and the cutter 230 can be integrally formed, or the cutter 230 can be fixed to the edge of the switch 241 for linkage. One switch 241 can be provided or two can be symmetrically provided to move the cutter 230 to two positions to be cut.

[0097] In some embodiments, the cutter assembly portion 215 also includes an elastic member 242, which is connected to the switch member 241 to provide the switch member 241 with a restoring elastic force when it is retracted, so that the cutter 230 is switched from the pop-up position to the storage position. The elastic member 242 can be a spring, an elastic rope, etc., which is not limited to this.

[0098] In some embodiments, the cleaning assembly 200 further includes a resisting member 216, which is configured to resist the inclined surface of the switch member 241. The switch member 241 moves outward under the resisting member 216, so that the cutter 230 switches from the storage position to the pop-up position.

[0099] In some embodiments, Figure 7 , Fig.11The cleaning assembly 200 further includes a roller brush cover 240, which is detachably mounted on the housing 210, wherein the roller brush cover 240 has a cutter mounting portion 215', which is disposed at the edge of the roller brush cover 240. When the roller brush cover 240 is mounted on the housing 210, the cutter mounting portion 215' is located near the end of the roller 221, and the cutter mounting portion 215' is mounted with the cutter 230, which is located near the end of the roller 221. Figure 7 As shown, when the roller brush cover 240 is assembled on the shell 210, the push member 216 extends into the cutter assembly portion 215' from the opening 243 of the cutter assembly portion 215', and the push member 216 pushes against the inclined surface of the switch member 241, so that the switch member 241 moves outward and drives the cutter 230 to switch from the storage position to the pop-up position.

[0100] In summary, the cutter assembly part (215, 215') can be located on one side of the shell 210, or on one side of the roller brush cover 240. Correspondingly, when the cutter assembly part (215, 215') is located on one side of the shell 210, the push piece 216 is located on one side of the roller brush cover 240. When the roller brush cover 240 is assembled on the shell 210, the push piece 216 extends from the opening 243 of the cutter assembly part (215, 215') into the cutter assembly part 215' from top to bottom for push; when the cutter assembly part (215, 215') is located on one side of the roller brush cover 240, the push piece 216 is located on one side of the shell 210. When the roller brush cover 240 is assembled on the shell 210, the push piece 216 extends from the opening 243 of the cutter assembly part (215, 215') into the cutter assembly part 215' from bottom to top for push.

[0101] In some embodiments, in combination Figure 3 It is understood that the roller brush 220 can be a single brush or a double brush. Figure 3 Taking the double brush shown as an example, the cutter 230 is located between the ends of the two rollers 221 on the same side of the two roller brushes 220. In this way, by setting a cutter assembly part (215, 215'), two cutters 230 extending in opposite directions can be set, and the windings at the ends of the two roller brushes can be cut at the same time, which not only saves space but also can reasonably remove the windings of the two roller brushes. Optionally, there are 2-4 cutters 230, and the cutters 230 can be set at one end or both ends of the roller brush, and the cutter heads of the cutters 230 are respectively facing the corresponding ends of the roller 221 to cut the windings of the roller brush shaft in all directions.

[0102] The disclosed embodiment of the present invention arranges a cutter at a position near the end of the roller of the cleaning component so that the projection of the cutter on the horizontal plane at least partially overlaps with the projection of the end of the roller on the horizontal plane, thereby being able to cut the entangled material wrapped around the end of the roller. The cut entangled material can be smoothly sucked away by the vacuum device, thereby avoiding the influence of the entangled material on the cleaning effect of the cleaning robot and also avoiding damage to the cleaning component. In addition, in the process of cutting the entangled material, the rotation speed of the roller brush is greater than 900 rpm and less than 1500 rpm, thereby being able to achieve effective cutting of the entangled material.

[0103] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other. For the system or device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description.

[0104] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A cleaning component, characterized in that: The cleaning component comprises: The housing has a roller brush cavity for accommodating the roller brush; A roller brush is rotatably mounted in the roller brush chamber, the roller brush comprises a roller shaft and a brush member, the brush member substantially extends from one end of the roller shaft to the other end of the roller shaft, wherein the end of the roller shaft is detachably connected to the housing, and the brush member cleans the surface to be cleaned under the rotation of the roller shaft; A cutter is arranged at a position adjacent to the end of the roller and configured to cut the windings wound around the end, wherein the projection of the cutter on the surface to be cleaned and the projection of the end of the roller on the surface to be cleaned at least partially overlap, the cutter extends substantially in the horizontal direction, and the height of the plane where the cutter is located is lower than the height of the section where the highest point of the roller is located; in the process of cutting the windings, the rotation speed of the roller brush is greater than 900 rpm and less than 1500 rpm; the distance between the cutter head and the end of the roller is 1 mm-2 mm; The housing has a cutter mounting portion, the cutter mounting portion is mounted with the cutter, and when the cutter is mounted on the cutter mounting portion, the cutter is located adjacent to the end of the roller.

2. A cleaning assembly according to claim 1, characterized in that: The cutter assembly portion further includes a switch member configured to enable the cutter to switch between a storage position and an ejection position.

3. A cleaning assembly according to claim 2, characterized in that: The cleaning component also includes: The abutting member is configured to abut against the switch member to switch the cutter from the storage position to the ejection position.

4. A cleaning assembly according to claim 2, characterized in that: The cutter assembly portion further includes an elastic member, and the elastic member is configured to enable the cutter to switch from the ejection position to the storage position.

5. A cleaning component, characterized in that: The cleaning component comprises: The housing has a roller brush cavity for accommodating the roller brush; A roller brush is rotatably mounted in the roller brush chamber, the roller brush comprises a roller shaft and a brush member, the brush member substantially extends from one end of the roller shaft to the other end of the roller shaft, wherein the end of the roller shaft is detachably connected to the housing, and the brush member cleans the surface to be cleaned under the rotation of the roller shaft; A cutter is arranged at a position adjacent to the end of the roller and configured to cut the windings wound around the end, wherein the projection of the cutter on the surface to be cleaned and the projection of the end of the roller on the surface to be cleaned at least partially overlap, the cutter extends substantially in the horizontal direction, and the height of the plane where the cutter is located is lower than the height of the section where the highest point of the roller is located; in the process of cutting the windings, the rotation speed of the roller brush is greater than 900 rpm and less than 1500 rpm; the distance between the cutter head and the end of the roller is 1 mm-2 mm; The roller brush cover is detachably mounted on the shell, wherein the roller brush cover has a cutter mounting portion, the cutter mounting portion is mounted with the cutter, and when the roller brush cover is mounted on the shell, the cutter is located adjacent to the end of the roller.

6. A cleaning assembly according to claim 5, characterized in that: The cutter assembly portion further includes a switch member configured to enable the cutter to switch between a storage position and an ejection position.

7. A cleaning assembly according to claim 6, characterized in that: The cleaning component also includes: The abutting member is configured to abut against the switch member to switch the cutter from the storage position to the ejection position.

8. A cleaning assembly according to claim 6, characterized in that: The cutter assembly portion further includes an elastic member, and the elastic member is configured to enable the cutter to switch from the ejection position to the storage position.

9. A cleaning component, characterized in that: The cleaning component comprises: The housing has a roller brush cavity for accommodating the roller brush; A roller brush is rotatably mounted in the roller brush chamber, the roller brush comprises a roller shaft and a brush member, the brush member substantially extends from one end of the roller shaft to the other end of the roller shaft, wherein the end of the roller shaft is detachably connected to the housing, and the brush member cleans the surface to be cleaned under the rotation of the roller shaft; A cutter is arranged at a position adjacent to the end of the roller and is configured to cut the windings wound around the end, wherein the projection of the cutter on the surface to be cleaned at least partially overlaps with the projection of the end of the roller on the surface to be cleaned, and the cutter extends generally in a horizontal direction; during the process of cutting the windings, the rotation speed of the roller brush is greater than 900 rpm and less than 1500 rpm; the distance between the cutter head and the end of the roller is 1mm-2mm.

10. A cleaning assembly according to claim 9, characterized in that: The height of the plane where the cutter is located is lower than the height of the section where the highest point of the roller is located; or, the height of the plane where the cutter is located is substantially the same as the height of the section where the highest point of the roller is located.

11. A cleaning component, characterized in that: The cleaning component comprises: The housing has a roller brush cavity for accommodating the roller brush; A roller brush is rotatably mounted in the roller brush chamber, the roller brush comprises a roller shaft and a brush member, the brush member substantially extends from one end of the roller shaft to the other end of the roller shaft, wherein the end of the roller shaft is detachably connected to the housing, and the brush member cleans the surface to be cleaned under the rotation of the roller shaft; A cutter is arranged at a position adjacent to the end of the roller and is configured to cut the winding material wound around the end, wherein a projection of the cutter on the surface to be cleaned at least partially overlaps with a projection of the end of the roller on the surface to be cleaned, and during the process of cutting the winding material, a rotation speed of the roller brush is greater than 900 rpm and less than 1500 rpm.

12. A cleaning assembly according to claim 11, characterized in that: The distance between the cutter head of the cutter and the end of the roller is 1mm-2mm.

13. A cleaning assembly according to claim 11, characterized in that: The cutter extends substantially in the horizontal direction, and the height of the plane where the cutter is located is lower than the height of the section where the highest point of the roller is located.

14. A cleaning assembly according to claim 11, characterized in that: The housing has a cutter mounting portion, the cutter mounting portion is mounted with the cutter, and when the cutter is mounted on the cutter mounting portion, the cutter is located adjacent to the end of the roller.

15. A cleaning assembly according to claim 11, characterized in that: The cleaning assembly also includes: a roller brush cover, which is detachably mounted on the shell, wherein the roller brush cover has a cutter mounting portion, and the cutter mounting portion is mounted with the cutter, and when the roller brush cover is mounted on the shell, the cutter is located adjacent to the end of the roller.

16. A cleaning assembly according to claim 14 or 15, characterized in that: The cutter assembly portion further includes a switch member configured to enable the cutter to switch between a storage position and an ejection position.

17. A cleaning assembly according to claim 16, characterized in that: The cleaning assembly further includes: a resisting member, wherein the resisting member is configured to resist the switch member so as to switch the cutter from the storage position to the ejection position.

18. A cleaning assembly according to claim 16, characterized in that: The cutter assembly portion further includes an elastic member, and the elastic member is configured to enable the cutter to switch from the ejection position to the storage position.

19. A cleaning assembly according to claim 11, characterized in that: The angle between the line connecting one end of the brush member to the other end of the brush member and the axial direction of the roller is 30 degrees to 45 degrees.

20. A cleaning assembly according to claim 19, characterized in that: One side of the rolling brush cavity is connected with a dust suction port, and the dust suction port is located on a side of the rolling brush cavity away from the cutter.

21. A cleaning assembly according to claim 20, characterized in that: The cleaning component also includes a side brush, and the cleaning range of the side brush overlaps with the projection of the suction port on the surface to be cleaned.

22. A cleaning assembly according to claim 20, characterized in that: The dust suction port is connected to a dust suction fan, and the suction force generated by the dust suction fan is greater than 10000Pa.

23. A cleaning assembly according to claim 11, characterized in that: In a working state of not cutting windings, the rotation speed of the roller brush is lower than the rotation speed of the roller brush in the process of cutting the windings.

24. A cleaning assembly according to claim 11, characterized in that: There are two roller brushes, and the cutter is located between the two roller brushes.

25. A cleaning assembly according to claim 11, characterized in that: The number of the cutters is 2-4.

26. A cleaning assembly according to claim 11, characterized in that: The winding material comprises at least one of a hair cluster and a silk thread.

27. A cleaning robot, characterized in that: Comprising a cleaning component as claimed in any one of claims 1 to 26.

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