Rolling brush assembly for cutting hair

Abstract

The utility model relates to the technical field of cleaning equipment, in particular to a rolling brush assembly for cutting hair, which comprises a cutting assembly for cutting hair wound on the rolling brush assembly; the roller assembly comprises a first half roller body and a second half roller body which are oppositely arranged at the circumferential edge end of the roller assembly, and a cavity capable of containing the cutting assembly is formed; the cleaning assembly is located on the roller assembly and used for cleaning the dirty surface; the transmission assembly is used for transmitting the rotating torque of the rotating assembly to the cutting assembly, so that the cutting assembly can move in the axial direction; the circumferential edge end of the first half cylinder comprises a comb tooth part, the circumferential edge end of the second half cylinder comprises a guide part, and the cutting assembly is located between the comb tooth part and the guide part which are oppositely arranged. According to the scheme, the process manufacturing cost is reduced, mixed dirt is not prone to entering the cavity to cause damage to teeth of the blade, hair is not prone to clustering, and the utilization rate of the cutting assembly and the hair cutting effect are greatly improved while the cutting assembly is easy to clean.

Description

Technical Field

[0001] The present disclosure relates to the technical field of cleaning equipment, and in particular to a roller brush assembly for cutting hair. Background Art

[0002] With the development of science and technology, cleaning robots, floor scrubbers, vacuum cleaners, mite removers and other cleaning equipment are becoming more and more automated and intelligent. Most cleaning equipment is equipped with cleaning parts that are used to contact the surface to be cleaned, so as to recover and clean the stains on the dirty surface, which greatly frees the user's hands. However, the hair on the dirty surface often gets entangled in the cleaning parts, which reduces their cleaning effectiveness. The entanglement and jamming of transmission parts and drive parts have become the main pain points for current users, and users often need to manually remove the cleaning parts and clean the hair manually, which greatly reduces the user experience.

[0003] Based on this, some prior art discloses a roller brush assembly, such as the invention patent application with publication number CN105982615A, which discloses that a serrated blade for cutting off windings is provided in a roller formed by at least two parts of a cylinder, and the tangled materials such as hair gathered in the tooth groove of the toothed edge of the roller are cut by the lateral movement of the blade. However, the adjacent parts of the two cylinders are provided with toothed edges to form a blade groove for placing the serrated blade, which greatly increases the process manufacturing cost and difficulty. At the same time, since the rotation direction of the roller brush is usually unidirectional, the toothed edge on the opposite side of the rotation direction of the double toothed edge does not play a corresponding role, resulting in unnecessary waste of cost and process. On the other hand, the gap size of the toothed edge is inconsistent, and the mixed dirt including particulate matter located here can easily directly enter the tooth groove of the toothed edge, causing the blade to be damaged. At the same time, the structure of the above-mentioned prior art cannot stop the hair located here, so that the hair is easy to clump, which greatly reduces the cutting effect.

[0004] In addition, the above-mentioned prior art also has the following defects: 1. As long as the roller brush is running, the blade will perform cutting action, and it is unable to adapt to different environments to perform cutting according to different conditions. For example, when the cleaning device is located on the surface of the carpet, if the roller brush rotates, the blade will inevitably perform reciprocating cutting motion, resulting in the problem that the carpet fluff is easily cut. 2. Furthermore, since the cleaning parts of the prior art mostly use V-shaped rubber strips or brushes, the above-mentioned prior art does not adaptively adjust the density of blade teeth and the motion characteristics of blade teeth at different positions according to the different distribution characteristics of hair on the V-shaped cleaning parts, so that in the hair-rich area at the bottom of the V-shaped cleaning part, the blade teeth are prone to wear and failure while cutting more hair gathered there, while in the non-bottom area, setting the same density of blade teeth or the same motion characteristics (such as cutting speed or cutting frequency) will greatly reduce the utilization rate of the blade teeth and increase the cost. 3. The related prior art discloses that the surface of the roller is provided with cleaning parts including rubber strips and brushes (such as the utility model patent with announcement number CN213696725U) for improving the cleaning ability of dirty surfaces. However, the related prior art does not disclose the rubber strips and brushes on the surface of the roller, and the size relationship between the two relative to the tip of the cutting roller brush blade. When the roller is rotating, the rubber strip is likely to contact the dirty surface first. On the one hand, the dust is not easily directly taken away from the dirty surface by the rubber strip, which reduces the cleaning efficiency of the rubber strip. On the other hand, the brush contacts the dirty surface after the rubber strip, which greatly reduces the dust cleaning ability of the brush.

[0005] Therefore, how to overcome the above-mentioned defects is a technical problem that those skilled in the art need to solve urgently. Utility Model Content

[0006] The utility model aims to provide a roller brush assembly for cutting hair, so as to solve the problems of hair entanglement and related problems of cleaning equipment, and has the characteristics of simple manufacturing process, strong cleaning effect, low cost, good user experience, etc.

[0007] To achieve the above object, the utility model provides a roller brush assembly for cutting hair, comprising:

[0008] A cutting assembly, used for cutting hair entangled in the roller brush assembly;

[0009] A roller assembly, the roller assembly comprising a first half-cylinder and a second half-cylinder disposed opposite to each other at the circumferential edge ends thereof to form a cavity capable of accommodating the cutting assembly;

[0010] A cleaning assembly, located on the drum assembly, for cleaning a dirty surface;

[0011] A rotating assembly and a transmission assembly, wherein the transmission assembly is respectively connected to the rotating assembly and the cutting assembly for transmitting the rotational torque of the rotating assembly to the cutting assembly so that the cutting assembly can move in an axial direction;

[0012] Wherein, the circumferential edge end of the first semi-cylinder includes a comb-tooth portion, and the comb-tooth portion extends to the cutting assembly; the circumferential edge end of the second semi-cylinder includes a guide portion, and the cutting assembly is arranged beyond the guide portion; wherein, the comb-tooth portion and the guide portion are arranged relative to each other so that at least part of the cutting assembly is located between the comb-tooth portion and the guide portion.

[0013] Preferably, the first and second half cylinders together form a semi-enclosed cavity with openings at both axial ends.

[0014] Preferably, it also includes a rotating assembly, which includes a rotating shaft, which is inserted into the cavity from one end side of the semi-closed cavity axially, and is used to provide driving force for the cutting assembly and the roller assembly at the same time; wherein the rotating shaft forms the axial direction of the roller brush assembly.

[0015] The cleaning component is detachably mounted on the roller component. Preferably, the cleaning component includes but is not limited to cleaning parts such as a rubber strip, a scraper strip, a brush, and a cleaning cloth.

[0016] Preferably, the guide portion comprises a stop portion extending axially along the drum assembly, wherein the stop portion and the second semi-cylinder are integrally formed or detachably connected.

[0017] Preferably, in the radial direction of the roller brush assembly, there is a height difference between the guide portion and the comb-tooth portion.

[0018] Preferably, the guide portion further comprises a connecting portion connecting the stop portion and the second semi-cylinder, wherein the connecting portion is respectively integrally formed with the stop portion and the second semi-cylinder or is detachably connected thereto.

[0019] Preferably, the number of the stopper may be at least one, and when the number of the stopper is one, the axial extension length of the stopper in the drum assembly is not less than the axial extension length of the cutting part of the cutting assembly in the drum assembly. When the number of the stopper is greater than one, for example, including the first stopper, the second stopper and the third stopper, correspondingly, when the number of the cutting assembly is greater than one, for example, including the first cutting part, the second cutting part and the third cutting part, the sum of the axial extension lengths of the first stopper, the second stopper and the third stopper in the drum assembly is not less than the sum of the axial extension lengths of the first cutting part, the second cutting part and the third cutting part in the drum assembly.

[0020] Preferably, the stopper may be a scraper blade, wherein the scraper blade is made of a flexible material.

[0021] Preferably, the plane where the stop portion is located is a first plane, and at the intersection of the stop portion and the second semi-cylinder, the cross-section of the second semi-cylinder is a second plane. There is a bending angle between the first plane and the second plane, so that when the roller brush assembly is in operation, the stop portion can stop foreign matter.

[0022] Preferably, the first plane and the second plane are parallel to the axial direction. The running state of the roller brush assembly specifically refers to the state in which the rotating shaft directly / indirectly drives the entire roller brush assembly to rotate when driven by the motor.

[0023] Preferably, the bending angle is 0-90°, and specifically, the bending angle is 30°, 45°, or 60°.

[0024] Preferably, driven by the rotating assembly, the cutting assembly and the roller brush assembly rotate around the axial direction at the same time, and the two have a relative rotation speed.

[0025] Preferably, the rotating assembly includes a transmission clutch portion for connecting the rotating shaft of the rotating assembly and the connecting member, so that the rotational torque output by the driving motor can be transmitted to the rotating shaft and drive the rotating shaft to rotate; the transmission clutch portion can connect or disconnect the rotating shaft and the connecting member according to the received transmission clutch signal, and in particular, when the roller brush assembly is located on a carpet surface or other velvet surface, for example, the rotating shaft is disconnected from the connecting member, and when the roller brush assembly is located on a non-carpet surface, the rotating shaft is connected to the connecting member.

[0026] Preferably, the transmission clutch part may also be located between the transmission assembly and the rotating assembly, and the transmission clutch part may connect or separate the transmission assembly and the rotating assembly according to the received transmission clutch signal. In particular, when the roller brush assembly is located on a carpet surface or other velvet surface, for example, the transmission assembly and the rotating assembly may be separated, and when the roller brush assembly is located on a non-carpet surface, the transmission assembly and the rotating assembly may be connected.

[0027] Among them, when the transmission component and the rotating component are separated, the cutting component is disconnected from the rotating component, so that the cutting component cannot receive the rotational torque transmitted by the rotating component and does not perform the hair cutting action. At the same time, the roller brush component can continue to be driven to rotate under the drive of the rotating component to perform the dirty surface cleaning action; when the transmission component and the rotating component are connected, the cutting component is directly / indirectly connected to the rotating component, so that the cutting component can receive the rotational torque transmitted by the rotating component and perform the hair cutting action. At the same time, the roller brush component can continue to be driven to rotate under the drive of the rotating component to perform the dirty surface cleaning action.

[0028] Preferably, the cutting assembly includes a cutting mating portion, and the transmission assembly includes a transmission mating portion, and the transmission mating portion is used to abut and cooperate with the cutting mating portion, so that when the transmission assembly is driven by the rotating assembly to move, the cutting assembly can reciprocate axially.

[0029] Among them, within one cooperation cycle of the transmission cooperation part and the cutting cooperation part, the distance of the axial reciprocating motion of the cutting component is the projection distance of the motion trajectory of the transmission cooperation part or the cutting cooperation part in the axial direction.

[0030] Preferably, the cutting matching portion includes a groove portion, and the transmission matching portion includes an annular protrusion portion arranged in a closed loop around the central axis of the transmission assembly, so that when the roller brush assembly is in operation, at least part of the annular protrusion portion can be located in the groove portion; wherein the annular protrusion portion and / or the groove portion are inclined relative to the central axis, so that the projection of the annular protrusion portion and / or the groove portion in the axial direction basically coincides with the projection of the movement trajectory of the annular protrusion portion and / or the groove portion in the axial direction.

[0031] Preferably, the cleaning component comprises a brush strip and / or a rubber strip, and the brush strip and / or the rubber strip are V-shaped in the axial distribution of the roller brush component, wherein the bottom area of ​​the V-shape is a hair-enriched area, and the non-bottom area of ​​the V-shape is a hair-non-enriched area;

[0032] The transmission matching part includes a first transmission matching part corresponding to the hair-enriched area, and a second transmission matching part corresponding to the hair-non-enriched area; the cutting matching part includes a first cutting matching part corresponding to the hair-enriched area, and a second cutting matching part corresponding to the hair-non-enriched area; wherein, the matching surfaces of the first transmission matching part and the first cutting matching part have a first inclination angle relative to the axial direction, and the matching surfaces of the second transmission matching part and the second cutting matching part have a second inclination angle relative to the axial direction, and the first inclination angle is not greater than the second inclination angle.

[0033] Preferably, the cleaning assembly comprises brush strips and rubber strips that are alternately distributed, wherein in the radial direction of the roller brush assembly, the height of the brush strips is not lower than the height of the rubber strips.

[0034] Preferably, the cutting assembly includes a cutting part, and the cleaning assembly includes brush strips and / or rubber strips alternately distributed, and the brush strips and / or rubber strips are V-shaped in the axial distribution of the roller brush assembly, wherein the bottom area of ​​the V-shape is a hair-enriched area, and the non-bottom area of ​​the V-shape is a hair-non-enriched area; the distribution density of the cutting part corresponding to the hair-enriched area is not less than the distribution density of the cutting part corresponding to the hair-non-enriched area, or, the cutting rate / cutting frequency of the cutting part corresponding to the hair-enriched area is not lower than the cutting rate / cutting frequency corresponding to the hair-non-enriched area.

[0035] The technical solution of the utility model has the following advantages:

[0036] 1. In this solution, a guide structure is provided at the circumferential edge end of at least one cylinder, so that the guide structure is arranged opposite to the comb tooth structure of another cylinder. On the one hand, the manufacturing cost of the comb tooth structure of the cylinder is reduced. On the other hand, it is easier to clean the cutting part, for example, when a foreign object is stuck on the edge of the blade or the drum. In addition, the stopper is provided here so that mixed dirt including particulate matter is not easy to directly enter the tooth groove of the tooth-shaped edge and cause damage to the blade teeth. At the same time, the structure can also stop the hair located here, so that the hair is not easy to clump, and it is also easy to enter the tooth gap, which greatly improves the cutting effect and cutting efficiency.

[0037] 2. When the roller brush is rotating and the blade is cutting, it can adapt to different environments to perform cutting conditions. For example, when the cleaning device is located on the carpet surface, the clutch action of the clutch structure can make the roller brush rotate while the cutting component does not move, making it difficult for the blade to cut the carpet fluff, ensuring safety in use.

[0038] 3. This solution adaptively adjusts the density of blade teeth and the movement characteristics of blade teeth at different positions according to the different distribution characteristics of hair on the V-shaped cleaning element, so that in the hair-rich area at the bottom of the V-shaped cleaning element, the blade teeth are not prone to wear and failure while cutting more hair gathered there. In the non-bottom area, setting blade teeth of different densities or different movement characteristics will greatly improve the utilization rate of the blade teeth and reduce costs.

[0039] 4. In this scheme, rubber strips and brushes are arranged on the surface of the roller, and the size relationship between the two and the tip of the cutting roller brush blade enables the bristles of the roller to contact the dirty surface first during the rotation of the roller, thereby improving the cleaning efficiency of the rubber strips and brushes.

[0040] 5. The protrusion and groove matching structure of the cutting matching part and the transmission matching part of this solution has the advantages of high structural stability, reliable transmission connection and low cost, and its side contact surfaces abut against each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 An exploded view of the structure of a roller brush assembly for cutting hair;

[0043] Figure 2 The figure is an overall structural diagram of a roller brush assembly for cutting hair;

[0044] Figure 3 It is a structural diagram of the comb teeth and guide parts at the circumferential edge of the drum;

[0045] Figure 4 Another embodiment of the structure of the comb teeth and guide parts at the circumferential edge of the drum;

[0046] Figure 5 for Figure 2 Section II of the roller brush assembly;

[0047] Figure 6 for Figure 2 Sectional view of the roller brush assembly III I I;

[0048] Figure 7 This is a diagram showing the magnetic state of the magnetic clutch at the end of the roller brush;

[0049] Figure 8 This is an exploded view of the separation state of the magnetic clutch part at the end of the roller brush;

[0050] Fig. 9 It is a schematic diagram of the transmission clutch structure;

[0051] Fig.10 It is a schematic diagram of the size relationship of the cleaning parts outside the drum;

[0052] Fig.11 It is a schematic diagram of the different density distribution structures in each area of ​​the cutting part;

[0053] Fig.12 It is an exploded schematic diagram of the installation structure of the roller brush assembly relative to the roller brush chamber;

[0054] Fig.13This is a structural schematic diagram of the roller brush assembly installed in the cleaning robot.

[0055] Description of reference numerals: 100, roller brush assembly; 101, cutting assembly; 1011, cutting matching portion; 1012, groove portion; 1013, cutting portion; 1014, first cutting matching portion; 1015, second cutting matching portion; 102, roller assembly; 1021, first half cylinder; 1022, second half cylinder; 1023, comb tooth portion; 1024, guide portion; 1025, stop portion; 1026, first plane; 1027, second plane; 1028, folding Bending corner; 103, circumferential edge end; 104, cavity; 105, cleaning component; 1051, brush strip; 1052, rubber strip; 1053, hair-enriched area; 1054, hair-non-enriched area; 106, rotating component; 1061, rotating shaft; 1062, connecting piece; 1063, elastic piece; 107, transmission component; 1071, transmission matching part; 1072, annular protrusion; 108, transmission clutch part; 109, roller brush cavity; 110, cleaning robot. DETAILED DESCRIPTION

[0056] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0057] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0058] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0059] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0060] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0061] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0062] The roller brush assembly 100 of the present application is used for cleaning equipment, which can be a cleaning robot, a floor scrubber, a handheld machine, a vacuum cleaner, etc. The present application does not limit the specific implementation subject. The cleaning equipment automatically / manually moves on the dirty surface to clean, thereby recovering dirt such as dust and hair on the dirty surface. The roller brush assembly 100 of the present application is rotatably arranged in the bottom roller brush cavity 109 of the cleaning equipment body. The roller brush assembly 100 can be one or more, and the cleaning object can be a medium such as carpet, floor, tile, etc.

[0063] Take cleaning robots as an example. Figure 1 The figure shows an exploded view of the structure of a roller brush assembly for cutting hair. The roller brush assembly 100 for cutting hair of the utility model comprises:

[0064] A cutting assembly 101, used for cutting hair entangled in the roller brush assembly 100;

[0065] A roller assembly 102, the roller assembly 102 comprising a first half cylinder 1021 and a second half cylinder 1022 disposed opposite to each other at a circumferential edge end 103 thereof, so as to form a cavity 104 for accommodating the cutting assembly;

[0066] A cleaning assembly 105, located on the drum assembly 100, for cleaning dirty surfaces;

[0067] A rotating assembly 106 and a transmission assembly 107, wherein the transmission assembly 107 is respectively connected to the rotating assembly 106 and the cutting assembly 101 for transmitting the rotational torque of the rotating assembly 106 to the cutting assembly 101, so that the cutting assembly 101 can move in an axial direction, and can be used to cut the hair in the cavity 104;

[0068] Wherein, the circumferential edge end 103 of the first half cylinder 1021 includes a comb tooth portion 1023, and the comb tooth portion 1023 can extend to the cutting assembly 101, and the circumferential edge end 103 of the second half cylinder 1022 includes a guide portion 1024, and the cutting assembly 101 is arranged beyond the guide portion 1024. It can be seen from the figure that in the radial direction, the farthest end of the guide portion 1024 is not higher than the farthest end of the cutting assembly 101; wherein, the comb tooth portion 1023 and the guide portion 1024 are arranged relative to each other so that at least part of the cutting assembly 101 is located between the comb tooth portion 1023 and the guide portion 1024.

[0069] For example Figure 1 As shown, the first and second half cylinders 1021 and 1022 together form a semi-enclosed cavity 104 with openings at both axial ends.

[0070] It also includes a rotating assembly 106, which includes a rotating shaft 1061, which is inserted into the cavity 104 from one axial end side of the semi-enclosed cavity 104, and is used to provide driving force for the cutting assembly 101 and the roller assembly 102 at the same time; wherein the rotating shaft 1061 forms the axial direction of the roller brush assembly 100.

[0071] The axial direction referred to below refers to the installation direction of the rotating shaft 1061 when it is working.

[0072] The cleaning component 105 is detachably mounted on the roller component 100. Preferably, the cleaning component 105 includes but is not limited to cleaning parts such as a rubber strip, a scraper strip, a brush, and a cleaning cloth.

[0073] As another embodiment, Figure 3 As shown, the guide portion 1024 further includes a stopper 1025 extending axially along the roller assembly 102, wherein the stopper 1025 and the second semi-cylinder 1022 are integrally formed or detachably connected. The stopper 1025 can be integrated with the guide portion 1024, or can be fixed to each other by, for example, bonding, clamping, riveting or screws.

[0074] Wherein, in the radial direction of the roller brush assembly 100, there is a height difference between the guide portion 1024 and the comb-tooth portion 1023, and the height difference can generally be set to 1-6 mm, preferably 3-4 mm.

[0075] The guide portion 1024 further includes a connecting portion (not shown) connecting the stopper portion 1025 and the second semi-cylinder 1022, wherein the connecting portion is integrally formed with the stopper portion 1025 and the second semi-cylinder 1022 or is detachably connected. The connecting portion may be a transition arc or transition chamfer structure, which may be integrated with the stopper portion 1025 into an integral structure.

[0076] The number of the stopper 1025 may preferably be at least one. Figure 3 As shown, when the number of the stop portion 1025 is one, the axial extension length of the stop portion 1025 in the roller assembly 102 is not less than the axial extension length of the cutting portion 1013 of the cutting assembly 101 in the roller assembly 102, and its purpose is to wrap the cutting assembly 101 in the axial direction to prevent the cutting assembly 101 from being damaged by the collision of large particles.

[0077] like Figure 4As shown, as another embodiment, when the number of the stopper 1025 is greater than one, for example, including the first stopper, the second stopper and the third stopper (the first, the second and the third stopper are evenly distributed in the axial direction), correspondingly, when the number of the cutting assembly 101 is greater than one, for example, including the first cutting assembly, the second cutting assembly and the third cutting assembly (the first, the second and the third cutting assembly are evenly distributed in the axial direction), the sum of the axial extension lengths of the first stopper, the second stopper and the third stopper in the roller assembly 102 is not less than the sum of the axial extension lengths of the first cutting assembly, the second cutting assembly and the third cutting assembly in the roller assembly 102.

[0078] The stopping portion 1025 may preferably be a scraper, wherein the scraper is made of a flexible material, such as rubber, silicone, or a bristle body.

[0079] Among them, the plane where the stop portion 1025 is located is the first plane, and at the intersection of the stop portion 1025 and the second half cylinder 1022, the cross-section of the second half cylinder 1022 is the second plane, and there is a bending angle 1028 between the first plane and the second plane, so that when the roller brush assembly 100 is in operation, the stop portion 1025 can stop foreign objects.

[0080] The first plane and the second plane are preferably parallel to the axial direction. The running state of the roller brush assembly 100 specifically refers to the state in which the rotating shaft 1061 directly / indirectly drives the roller brush assembly 100 to rotate as a whole when driven by the motor.

[0081] The bending angle 1028 may be 0-90°, and specifically, the bending angle 1028 is 30°, 45°, or 60°.

[0082] Wherein, driven by the rotating assembly 106 , the cutting assembly 101 and the rolling brush assembly 100 rotate around the axial direction at the same time, and the two have a relative rotation speed.

[0083] like Figure 7 , 8As shown, as another embodiment, the rotating component 106 includes a transmission clutch part 108, which is used to connect the rotating shaft 1061 and the connecting member 1062 of the rotating component 106, so that the rotational torque output by the driving motor can be transmitted to the rotating shaft 1061 and drive the rotating shaft 1061 to rotate; the transmission clutch part 108 can connect or separate the rotating shaft 1061 and the connecting member 1062 according to the received transmission clutch signal, and in particular, when the roller brush assembly 100 is located on a carpet surface or other velvet surface, for example, the rotating shaft 1061 is separated from the connecting member 1062, and when the roller brush assembly 100 is located on a non-carpet surface, the rotating shaft 1061 is connected to the connecting member 1062.

[0084] Specifically, under the action of the elastic member 1063, the rotating shaft 1061 of the rotating component 106 and the connecting member 1062 are in contact with each other and have a tendency to move away from each other; wherein, in the magnetic state, the connecting member 1062 is powered, the connecting member 1062 and the transmission clutch part 108 are in contact with each other and have a mutual attraction force, so that the connecting member 1062 and the rotating shaft 1061 are brought closer to resist the elastic force of the elastic member 1063 on the connecting member 1062 and the rotating shaft 1061 moving away from each other, so that the attraction force is balanced with the elastic force, thereby maintaining the transmission chain of the rotating component 106 and the drive motor.

[0085] On the contrary, in the non-magnetic state, the connecting member 1062 is powered off, and the connecting member 1062 and the transmission clutch part 108 are separated from each other, so that under the elastic action of the elastic member 1063, the connecting member 1062 and the rotating shaft 1061 are separated, thereby disconnecting the transmission chain between the rotating component 106 and the driving motor. At this time, the rotating component does not rotate with the rotation of the driving motor, so that the roller brush rotates while the cutting component 101 no longer performs the cutting action.

[0086] Among them, the connecting member 1062 is connected to the driving motor to form a whole transmission chain, and the rotating shaft 1061 is connected to the cutting assembly 101 to form a whole transmission chain. The junction of the two transmission chains is located at the transmission clutch part 108 between the connecting member 1062 and the rotating shaft 1061.

[0087] Furthermore, the transmission clutch part 108 may also be located between the transmission component 107 and the rotating component 106. The transmission clutch part 108 can connect or separate the transmission component 107 and the rotating component 108 according to the received transmission clutch signal. In particular, when the roller brush assembly 100 is located on a carpet surface or other velvet surface, for example, the transmission component 107 and the rotating component 106 are separated, and when the roller brush assembly 100 is located on a non-carpet surface, the transmission component 107 and the rotating component 106 are connected.

[0088] Among them, when the transmission component 107 and the rotating component 106 are separated, the cutting component 101 is disconnected from the rotating component 106, so that the cutting component 101 cannot receive the rotational torque transmitted by the rotating component 106 and does not perform the hair cutting action. At the same time, the roller brush component 100 can continue to be driven to rotate under the drive of the rotating component 106 to perform the cleaning action of the dirty surface; when the transmission component 107 and the rotating component 106 are connected, the cutting component 101 is directly / indirectly connected to the rotating component 106, so that the cutting component 101 can receive the rotational torque transmitted by the rotating component 106 and perform the hair cutting action. At the same time, the roller brush component 100 can continue to be driven to rotate under the drive of the rotating component 106 to perform the cleaning action of the dirty surface.

[0089] like Fig. 9 As shown, as another embodiment, the cutting assembly 101 includes a cutting matching part 1011, and the transmission assembly 107 includes a transmission matching part 1071, and the transmission matching part 1071 is used to abut and match with the cutting matching part 1011, so that when the transmission assembly 107 is driven by the rotating assembly 106 to rotate, the cutting assembly 101 can reciprocate along the axial direction. Wherein, the cutting part 1013 of the cutting assembly 101 is two blades that fit each other, and the two blades are provided with teeth along the axial direction, which are used to cut the hair when foreign matter such as hair enters; wherein, one blade is a stationary blade, and the other blade is a moving blade, and the moving blade reciprocates along the stationary blade under the driving action of the transmission assembly 107. Wherein, the pitch of the teeth is 1.75mm, and the cutting rate is 4mm / s, that is, a periodic reciprocating cutting action is achieved per second; in the actual operation process, considering factors such as clearance, the actual single stroke is between 1.5-2 teeth.

[0090] Among them, within one cooperation cycle of the transmission cooperation part 1071 and the cutting cooperation part 1011, the distance of the axial reciprocating motion of the cutting assembly 101 is the projection distance of the motion trajectory of the transmission cooperation part 1071 or the cutting cooperation part 1011 in the axial direction.

[0091] Furthermore, the cutting matching portion 1011 includes a groove portion 1012, and the transmission matching portion 1071 includes an annular protrusion 1072 arranged in a closed loop around the central axis of the transmission assembly 107, so that when the roller brush assembly 100 is in operation, at least part of the annular protrusion 1072 can be located in the groove portion 1012; wherein, the annular protrusion 1072 and / or the groove portion 1012 are inclined relative to the central axis, so that the projection of the annular protrusion 1072 and / or the groove portion 1012 in the axial direction basically coincides with the projection of the movement trajectory of the annular protrusion 1072 and / or the groove portion 1012 in the axial direction.

[0092] As another embodiment, Figure 2 , 5 As shown in , 6, the cleaning component 105 includes a brush strip 1051 and / or a rubber strip 1052, and the brush strip 1051 and / or the rubber strip 1052 are V-shaped in the axial distribution of the roller brush component 100, wherein the bottom area of ​​the V-shape is a hair-enriched area 1053, and the non-bottom area of ​​the V-shape is a hair-non-enriched area 1054.

[0093] For example Fig. 9 As shown, the transmission matching part 1071 includes a first transmission matching part corresponding to the hair enrichment area 1053 and a second transmission matching part corresponding to the hair non-enrichment area 1054 .

[0094] In which, the cutting component 100 includes a cutting part 1013, and the cleaning component 105 includes brush strips 1051 and / or rubber strips 1052 that are alternately distributed, and the brush strips 1051 and / or the rubber strips 1052 are V-shaped in the axial distribution of the roller brush component 100, wherein the bottom area of ​​the V-shape is a hair-enriched area 1053, and the non-bottom area of ​​the V-shape is a hair-non-enriched area 1054; the distribution density of the cutting part 1013 corresponding to the hair-enriched area 1053 is not less than the distribution density of the cutting part 1013 corresponding to the hair-non-enriched area 1054, or, the cutting rate / cutting frequency of the cutting part 1013 corresponding to the hair-enriched area 1053 is not lower than the cutting rate / cutting frequency corresponding to the hair-non-enriched area 1054.

[0095] Among them, for the distribution density of the cutting part 1013 corresponding to the hair-rich area 1053, the tooth pitch of the blade is preferably 1-1.5mm, which is higher than the distribution density of the cutting part 1013 corresponding to the non-hair-rich area 1054, or the cutting rate of the cutting part 1013 is 6-8mm / s.

[0096] In particular, the driving motor speed can usually be set to 5000-7000 rpm.

[0097] like Fig.11 As shown, the cutting fitting part 1011 includes a first cutting fitting part 1014 corresponding to the hair enriched area 1053, and a second cutting fitting part 1015 corresponding to the hair non-enriched area 1054; wherein, the fitting surfaces of the first transmission fitting part and the first cutting fitting part 1014 have a first inclination angle relative to the axial direction, and the fitting surfaces of the second transmission fitting part and the second cutting fitting part 1015 have a second inclination angle relative to the axial direction, and the first inclination angle is not greater than the second inclination angle.

[0098] like Fig.10 As shown, as another embodiment, the cleaning component 105 includes brush strips 1051 and rubber strips 1052 that are alternately distributed, wherein in the radial direction of the roller brush assembly 100, the height R of the brush strips 1051 is not lower than the height r of the rubber strips 1052, and its function is that during the rotation of the roller brush, the brush strips 1051 contact the surface to be cleaned before the rubber strips 1052.

[0099] like Fig.12 The figure shows an exploded schematic diagram of the installation structure of the roller brush assembly relative to the roller brush chamber 109, and Fig.13 The figure shows a schematic diagram of the structure in which the roller brush assembly is installed in the cleaning robot 110. Since the rest of the related technologies are well-known technologies in the art, the technical features and functions of this part will not be described in detail.

[0100] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0101] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A roller brush assembly for cutting hair, comprising: A cutting assembly, used for cutting hair entangled in the roller brush assembly; A roller assembly, the roller assembly comprising a first half-cylinder and a second half-cylinder disposed opposite to each other at the circumferential edge ends thereof to form a cavity capable of accommodating the cutting assembly; A cleaning assembly, located on the drum assembly, for cleaning a dirty surface; A rotating assembly and a transmission assembly, wherein the transmission assembly is respectively connected to the rotating assembly and the cutting assembly for transmitting the rotational torque of the rotating assembly to the cutting assembly so that the cutting assembly can move in an axial direction; Features: The circumferential edge end of the first semi-cylinder includes a comb-tooth portion, which extends to the cutting assembly; the circumferential edge end of the second semi-cylinder includes a guide portion, and the cutting assembly is arranged beyond the guide portion; wherein the comb-tooth portion and the guide portion are arranged relative to each other so that at least part of the cutting assembly is located between the comb-tooth portion and the guide portion.

2. The roller brush assembly according to claim 1, characterized in that: The guide portion includes a stopper portion extending along the axial direction of the drum assembly, wherein the stopper portion and the second semi-cylinder body are integrally formed or detachably connected.

3. The roller brush assembly according to claim 2, characterized in that: The plane where the stop portion is located is a first plane. At the intersection of the stop portion and the second semi-cylinder, the cross-section of the second semi-cylinder is a second plane. There is a bending angle between the first plane and the second plane, so that when the roller brush assembly is in operation, the stop portion can stop foreign matter.

4. The roller brush assembly according to any one of claims 1 to 3, characterized in that: In the radial direction of the roller brush, the guide portion and the comb-tooth portion have a height difference.

5. The roller brush assembly according to any one of claims 1 to 3, characterized in that: A transmission clutch part is provided between the transmission assembly and the rotating assembly, and the transmission clutch part can connect or separate the transmission assembly and the rotating assembly according to the received transmission clutch signal, so that when the roller brush assembly is located on the carpet surface, the transmission assembly and the rotating assembly are separated, and when the roller brush assembly is located on the non-carpet surface, the transmission assembly and the rotating assembly are connected.

6. The roller brush assembly according to any one of claims 1 to 3, characterized in that: The cutting assembly includes a cutting matching portion, and the transmission assembly includes a transmission matching portion, and the transmission matching portion is abutted against the cutting matching portion, so that when the transmission assembly is driven by the rotating assembly to move, the cutting assembly can reciprocate along the axial direction.

7. The roller brush assembly according to claim 6, characterized in that: The cutting matching portion includes a groove portion, and the transmission matching portion includes an annular protrusion portion arranged in a closed loop around the central axis of the transmission assembly, so that when the roller brush assembly is in operation, at least part of the annular protrusion portion can be located in the groove portion; wherein the annular protrusion portion and / or the groove portion are arranged obliquely relative to the central axis.

8. The roller brush assembly according to claim 6, characterized in that: The cleaning component includes a brush strip and / or a rubber strip, and the brush strip and / or the rubber strip are distributed in a V-shape in the axial direction of the roller brush component, wherein the bottom area of ​​the V-shape is a hair-enriched area, and the non-bottom area of ​​the V-shape is a hair-non-enriched area; The transmission matching part includes a first transmission matching part corresponding to the hair-enriched area, and a second transmission matching part corresponding to the hair-non-enriched area; the cutting matching part includes a first cutting matching part corresponding to the hair-enriched area, and a second cutting matching part corresponding to the hair-non-enriched area; wherein, the matching surfaces of the first transmission matching part and the first cutting matching part have a first inclination angle relative to the axial direction, and the matching surfaces of the second transmission matching part and the second cutting matching part have a second inclination angle relative to the axial direction, and the first inclination angle is not greater than the second inclination angle.

9. The roller brush assembly according to any one of claims 1 to 3, characterized in that: The cleaning assembly includes brush strips and rubber strips that are alternately distributed, wherein in the radial direction of the roller brush assembly, the height of the brush strips is not lower than the height of the rubber strips.

10. The roller brush assembly according to any one of claims 1 to 3, characterized in that: The cutting component includes a cutting part, and the cleaning component includes brush strips and / or rubber strips that are alternately distributed, and the brush strips and / or rubber strips are V-shaped in the axial distribution of the roller brush component, wherein the bottom area of ​​the V-shape is a hair-enriched area, and the non-bottom area of ​​the V-shape is a hair-non-enriched area; the distribution density of the cutting part corresponding to the hair-enriched area is not less than the distribution density of the cutting part corresponding to the hair-non-enriched area, or the cutting rate / cutting frequency of the cutting part corresponding to the hair-enriched area is not lower than the cutting rate / cutting frequency corresponding to the hair-non-enriched area.

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