Anti-winding rolling brush and cleaning equipment

Abstract

The utility model provides an anti-winding rolling brush and cleaning equipment, and relates to the technical field of cleaning equipment, the anti-winding rolling brush is provided with a first end far away from a driving piece and a second end close to the driving piece, the anti-winding rolling brush comprises a rolling brush body, and rolling brush hair strips and rolling brush scraping strips are spirally arranged on the periphery of the rolling brush body. The rolling brush hair strips and the rolling brush scraping strips are alternately arranged in the circumferential direction of the rolling brush body; from the second end to the first end, the spiral directions of the rolling brush hair strips and the rolling brush scraping strips are the same as the rotating direction of the rolling brush body; and hair bundles of the rolling brush hair strips are obliquely arranged towards the first end. Therefore, the hair collecting device has the advantages that the hair can be easily guided to be far away from the driving end to be collected and is not easily wound on the rolling brush.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to an anti-winding roller brush and cleaning equipment. Background Art

[0002] With the development of technology, cleaning robots are becoming more and more popular in households. Generally, a cleaning robot includes a cleaning robot body, a dust box or dust cup installed in the cleaning robot body, an air pump that provides negative pressure, a roller brush that rotates in the cleaning robot body, and a motor that drives the roller brush to rotate. Dust or hair is collected into the dust box or dust cup under the action of the air pump and the roller brush.

[0003] In the prior art, when the roller brush is used for a long time, hair is easily entangled on the roller brush, thereby increasing the motor load and reducing the cleaning effect. When the hair is entangled on the output end of the motor, it is easy to burn the motor. For this reason, some inventors have designed and invented a comb tooth structure in the roller brush assembly space, or a cutting component method to reduce or remove the hair entangled on the roller brush. However, these structures either have unsatisfactory effects or increase the manufacturing cost of the cleaning robot.

[0004] Therefore, a kind of anti-winding roller brush and cleaning device that hair is easily guided to be collected away from the driving end and is not easy to be entangled on the roller brush needs to be designed. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-entanglement roller brush and cleaning device in view of the defects and shortcomings of the prior art, which at least solves one of the above-mentioned technical problems. It has the advantages that hair can be easily guided to a place away from the driving end for collection and is not easily entangled on the roller brush.

[0006] To achieve the above-mentioned objectives, the utility model provides, on the one hand, an anti-entanglement roller brush, having a first end away from a driving member, and a second end close to the driving member, including a roller brush body, the outer periphery of the roller brush body being spirally configured with roller brush bristles and roller brush scraping strips, the roller brush bristles and the roller brush scraping strips being alternately arranged in the circumferential direction of the roller brush body; from the second end to the first end, the spiral direction of the roller brush bristles and the roller brush scraping strips is the same as the rotation direction of the roller brush body; and the hair bundles of the roller brush bristle strips are configured to be inclined toward the first end.

[0007] Optionally, the outer periphery of the roller brush body has an assembly groove extending in a spiral shape and having an inverted T-shaped cross section, and the roller brush bristle strip and / or the roller brush scraper strip has an assembly portion with a T-shaped cross section that cooperates with the assembly groove.

[0008] Optionally, the roller brush body includes a roller brush outer shaft assembly, a roller brush inner shaft assembly and a rotating and telescopic assembly; the roller brush outer shaft assembly has an inner cavity arranged along the axial direction, and the outer diameter of the first end thereof is smaller than the outer diameter of the second end; the roller brush inner shaft assembly and the rotating and telescopic assembly are fixedly connected, and at least partially movably assembled in the inner cavity, and can drive the roller brush outer shaft assembly to rotate synchronously; wherein the rotating and telescopic assembly is used to drive the roller brush inner shaft assembly to translate toward the first end direction or the second end direction when receiving torque, so as to squeeze or move away from the inner wall of the first end of the inner cavity, so that the first end of the roller brush outer shaft assembly radially expands or contracts, and after reaching the extreme position, drives the roller brush inner shaft assembly to rotate.

[0009] Optionally, the rotating telescopic assembly includes: a telescopic internal threaded member, a telescopic external threaded member and a telescopic cover; the second end of the telescopic external threaded member is transmission-connected to the driving member, and its outer circumference has an external thread; the first end of the telescopic internal threaded member is fixedly connected to the roller brush inner shaft assembly, and its inner circumference has an internal thread that matches the external thread; the telescopic cover is arranged on the second end of the telescopic internal threaded member.

[0010] Optionally, the inner cavity includes a first section close to the first end and a second section away from the first end, and the inner diameter of the first section is smaller than the inner diameter of the second section; the roller brush inner shaft assembly includes a roller brush inner shaft, and the first end of the roller brush inner shaft at least includes a first extrusion section in the shape of a cone or a truncated cone, and a second extrusion section in the shape of a cylinder connected to the first extrusion section; so that when the first extrusion section and the second extrusion section of the roller brush inner shaft squeeze the first section of the inner cavity, the first end of the roller brush outer shaft assembly expands radially.

[0011] Optionally, the roller brush outer shaft assembly includes a hard rubber support portion and a soft rubber connecting portion, and a plurality of the hard rubber supporting portions are distributed at intervals along the circumferential direction, the inner wall of the hard rubber supporting portion has a convex strip extending toward the axial direction, and a plurality of the convex strips form a first section of the inner cavity at one end close to the axial center; the soft rubber connecting portion connects two adjacent hard rubber supporting portions; when the first end of the roller brush outer shaft assembly radially contracts, the soft rubber connecting portion is wrinkled; when the first end of the roller brush outer shaft assembly radially expands, the soft rubber connecting portion is stretched.

[0012] On the other hand, the utility model provides a cleaning device, including: a chassis assembly, a roller brush cover assembly, a driving member, and the anti-winding roller brush as described above; the chassis assembly is provided with a driving member mounting seat, and the driving member is assembled on the driving member mounting seat; the chassis assembly and the roller brush cover assembly are snapped together to form a roller brush accommodating cavity, the anti-winding roller brush is assembled in the roller brush accommodating cavity, and is transmission-connected to the driving member.

[0013] Optionally, the second end of the anti-winding roller brush is rotatably assembled in the roller brush accommodating cavity through a roller brush shaft bracket, and the first end of the anti-winding roller brush is suspended in the roller brush accommodating cavity.

[0014] Optionally, the roller brush body is rotatably disposed on the first end of the roller brush shaft bracket via a bearing; and the second end of the roller brush body has a circumferentially arranged rotating shaft strip for covering the gap between the roller brush body and the roller brush shaft bracket.

[0015] Optionally, the first end of the roller brush shaft bracket has an annular cover edge extending toward the roller brush body, the roller brush body has a circumferentially arranged annular retaining ring, and the rotating shaft wool strip is configured on a side of the annular retaining ring close to the roller brush shaft bracket.

[0016] Compared with the prior art, the advantages of this application are:

[0017] Since the anti-entanglement roller brush body is spirally configured with roller brush bristles and roller brush scraping strips, the roller brush bristles and roller brush scraping strips are alternately arranged in the circumferential direction of the roller brush body; in this way, when hair is attached to the area between two roller brush bristles, the roller brush scraping strips can support the hair, thereby increasing the circumference of the hair winding around the roller brush body and reducing the probability of the hair winding around the roller brush body. The spiral direction of the roller brush bristles and the roller brush scraper strips is set in the same direction as the rotation direction of the roller brush body; and the hair bundles of the roller brush bristles are arranged inclined toward the first end; when working, the roller brush bristles at one end away from the driving member touch the ground first, and when there are hairs, the oblique side surfaces of the hair bundles of the roller brush bristles touch the hairs, and since the hair bundles of the roller brush bristles are not set vertically, the hairs will not be entangled in the gaps between the hair bundles; in this way, under the guidance of the spiral roller brush bristles, the hairs can be guided to be collected away from the driving end; thus, the hairs have the advantages that the hairs can be easily guided to be collected away from the driving end and are not easily entangled on the roller brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the structure of some components of the cleaning equipment of an embodiment of the utility model;

[0020] Figure 2 A top view of some components of a cleaning device according to an embodiment of the utility model;

[0021] Figure 3 for Figure 2 Schematic diagram of the cross-section structure along line AA;

[0022] Figure 4 This is a schematic diagram of the exploded structure of some components of the cleaning equipment of the embodiment of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the anti-winding roller brush according to an embodiment of the utility model;

[0024] Figure 6 This is a schematic diagram of the exploded structure of the anti-winding roller brush according to an embodiment of the utility model;

[0025] Figure 7 This is a schematic diagram of the exploded structure of the rotating and telescopic assembly of the embodiment of the utility model;

[0026] Figure 8 for Figure 7 Schematic diagram of the cross-section structure along line BB;

[0027] Fig. 9 This is a schematic diagram of the structure of the roller brush outer shaft assembly of the utility model embodiment;

[0028] Fig.10 It is a left view of the anti-winding roller brush of the embodiment of the utility model;

[0029] Fig.11 for Fig.10 Schematic diagram of the cross-section structure along line BB;

[0030] Fig.12 This is a left side view of the outer shaft assembly of the roller brush according to the embodiment of the utility model;

[0031] Fig.13 for Fig.12 Schematic diagram of the cross-section structure along the DD line;

[0032] Fig.14 This is a schematic diagram of the structure of the inner shaft of the roller brush according to an embodiment of the utility model;

[0033] Fig.15 It is a schematic cross-sectional structure diagram of the first end when the embodiment of the utility model is in the first working state;

[0034] Fig.16 It is a schematic diagram of the cross-sectional structure of the first end when the embodiment of the utility model is in the second working state;

[0035] Fig.17 This is a front view structural diagram of the roller brush end cover of the embodiment of the utility model;

[0036] Fig.18 It is a schematic structural diagram of the roller brush shaft bracket according to an embodiment of the utility model.

[0037] Description of Reference Numerals

[0038] 100- Anti-entanglement roller brush;

[0039] 1-roller brush outer shaft assembly; a-inner cavity; b-first section; c-second section; 11-hard rubber support part; 111-convex strip; d-step surface; 12-soft rubber connection part; 13-roller brush end cover; 131-hard rubber end cover part; 132-soft rubber expansion part; 14-rotating shaft wool strip; 15-annular retaining ring; 16-assembly groove;

[0040] 2-roller brush inner shaft assembly; 21-roller brush inner shaft; e-front section; f-first extrusion section; g-second extrusion section; 211-driving sleeve; h-slideway; 22-gasket; 23-compression spring;

[0041] 3-rotating telescopic assembly; 31-telescopic internal threaded member; 311-internal thread; 312-blocking wall; 313-spline groove; 32-telescopic external threaded member; 321-external thread; 322-plug-in convex portion; 33-telescopic cover;

[0042] 4-roller brush shaft bracket; 41-annular convex ring; 42-annular cover edge;

[0043] 5-Bearing;

[0044] 6-roller brush strip; 61-hair bundle; 62-assembly part;

[0045] 7-Roller brush scraper;

[0046] 7-Screws;

[0047] 8-Spline;

[0048] 200- chassis assembly; 210- mounting seat; 220- roller brush receiving chamber;

[0049] 300-Roller brush box assembly;

[0050] 400-roller brush cover assembly; 410-cleaning port. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0052] It should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "back", "side", "circumferential" and the like in the present invention indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. In addition, the words "first", "second" and the like are only used to distinguish multiple components or structures with the same or similar structures, and do not represent any special limitation on the setting order or connection relationship.

[0053] Please refer to Figures 1 to 18 The embodiment of the utility model provides an anti-entanglement roller brush 100, which is used to be assembled into the chassis assembly 200 of the cleaning equipment to clean the dust, debris and other debris on the floor. It should be noted that the cleaning equipment can be a cleaning appliance such as a vacuum cleaner and a cleaning robot. The anti-entanglement roller brush 100 has a first end away from the driving member and a second end close to the driving member. In this embodiment, the driving member is a roller brush tooth box assembly 300, and the roller brush tooth box assembly 300 is a combination of a driving motor and a transmission mechanism to save assembly space. The driving member can also be a separate motor, which is not limited here. The anti-entanglement roller brush 100 includes a roller brush body, and the outer periphery of the roller brush body is spirally configured with three roller brush strips 6 and three roller brush scraping strips 7, and the roller brush strips 6 and the roller brush scraping strips 7 are alternately arranged in the circumferential direction of the roller brush body. Of course, in other embodiments, the number of roller brush strips 6 and roller brush scraping strips 7 can also be two, four or more, which is not specifically limited here. From the second end to the first end, the spiral direction of the roller brush bristle strip 6 and the roller brush scraper strip 7 is in the same direction as the rotation direction of the roller brush body; and the hair bundle 61 of the roller brush bristle strip 6 is tilted toward the first end. In this embodiment, during normal cleaning, the anti-entanglement roller brush 100 rotates clockwise. Therefore, in this embodiment, the spiral direction of the roller brush bristle strip 6 and the roller brush scraper strip 7 from the two ends to the first end is also deflected clockwise. Preferably, after testing, the inclination angle between the scraper strip of the roller brush bristle strip 6 and the diameter of the roller brush body is preferably between 30° and 45°. This inclination angle not only makes the anti-entanglement effect of the hair of the anti-entanglement roller brush 100 more ideal, but also has a better cleaning effect. Specifically, the inclination angle can be selected as 30°, 35°, 38°, 40°, 43° or 45°, as long as it is between 30° and 45°.

[0054] Since the outer periphery of the roller brush body of the anti-entanglement roller brush 100 is spirally configured with roller brush bristle strips 6 and roller brush scraping strips 7, the roller brush bristle strips 6 and the roller brush scraping strips 7 are alternately arranged in the circumferential direction of the roller brush body; in this way, when hair is attached to the area between two roller brush bristle strips 6, the roller brush scraping strips 7 can support the hair, thereby increasing the circumference of the hair wrapped around the roller brush body and reducing the probability of the hair being wrapped around the roller brush body. The spiral direction of the roller brush bristle strip 6 and the roller brush scraper strip 7 is set in the same direction as the rotation direction of the roller brush body; and the hair bundle 61 of the roller brush bristle strip 6 is inclined toward the first end; when working, the roller brush bristle strip 6 at one end away from the driving member contacts the ground first, and when there is hair, the oblique side surface of the hair bundle 61 of the roller brush bristle strip 6 contacts the hair, because the hair bundle 61 of the roller brush bristle strip 6 is not set vertically, the hair will not be entangled in the gap between the hair bundle 61; in this way, under the guidance of the spiral roller brush bristle strip 6, the hair can be guided to be collected away from the driving end; this has the advantages that the hair can be easily guided to be collected away from the driving end and is not easy to be entangled on the roller brush.

[0055] In order to facilitate the assembly of the roller brush bristles 6 and / or roller brush scraper strips 7 and avoid the need to replace the entire roller brush body when individual roller brush bristles 6 and / or roller brush scraper strips 7 are damaged, the roller brush bristles 6 and / or roller brush scraper strips 7 are designed separately from the roller brush body, and the roller brush bristles 6 and roller brush scraper strips 7 are assembled into a whole with the roller brush body in a detachable manner. For details, please refer to Fig.15 and Fig.16 In this embodiment, the outer periphery of the roller brush body has an assembly groove 16 extending in a spiral shape and having an inverted T-shaped cross section, and the roller brush bristle strip 6 and / or the roller brush scraper strip 7 have an assembly portion 62 with a T-shaped cross section that matches the assembly groove 16. In this way, during assembly, the assembly portion 62 of the roller brush bristle strip 6 and / or the roller brush scraper strip 7 can be slid into the assembly groove 16 from the end of the roller brush body; during disassembly, the assembly portion 62 of the roller brush bristle strip 6 and / or the roller brush scraper strip 7 can be slid out of the T-shaped assembly groove 16 of the roller brush body from the end. Preferably, in order to prevent the roller brush bristle strip 6 and the roller brush scraper strip 7 from sliding out of the assembly groove 16, a roller brush end cover 13 covering the end surface outlet of the assembly groove 16 is provided at the first end of the roller brush body.

[0056] Optionally, see Figure 5 , Fig.11 , Fig.15 and Fig.16In this embodiment, the roller brush body includes a roller brush outer shaft assembly 1, a roller brush inner shaft assembly 2 and a rotating telescopic assembly 3. The roller brush outer shaft assembly 1 has an inner cavity a arranged along the axial direction, and the outer diameter of the first end of the roller brush outer shaft assembly 1 is smaller than the outer diameter of the second end; the roller brush inner shaft assembly 2 and the rotating telescopic assembly 3 are fixedly connected, and at least part of them can be movably assembled in the inner cavity a, and can drive the roller brush outer shaft assembly 1 to rotate synchronously; the rotating telescopic assembly is transmission-connected to the driving member, and is used to receive the torque of the driving member. The rotating telescopic assembly 3 is used to drive the roller brush inner shaft assembly 2 to translate toward the first end when receiving a positive torque, so as to squeeze the inner wall of the first end of the inner cavity a, so that the first end of the roller brush outer shaft assembly 1 expands radially, and after reaching the first limit position, drives the roller brush inner shaft assembly 2 to rotate forward, and then drives the roller brush outer shaft assembly 1 to rotate forward synchronously; when the rotating telescopic assembly 3 receives a reverse torque, it drives the roller brush inner shaft assembly 2 to translate toward the second end, so as to radially contract the first end of the roller brush outer shaft assembly 1, and after reaching the second limit position, drives the roller brush inner shaft assembly 2 to reverse, and then drives the roller brush outer shaft assembly 1 to reverse synchronously. Specifically, in this embodiment, the positive torque is not limited to a clockwise torque, but can also be a counterclockwise torque, as long as it can make the rotating telescopic assembly 3 push the roller brush inner shaft assembly 2 to translate toward the first end, it is a positive torque.

[0057] Because the roller brush outer shaft assembly 1 of the anti-entanglement roller brush 100 can expand radially or contract radially at the first end of the roller brush outer shaft assembly 1 under the action of the rotating telescopic assembly 3 and the roller brush inner shaft assembly 2, the anti-entanglement roller brush 100 can have a first working state in which the shaft diameters of the first and second ends of the roller brush outer shaft assembly 1 are equal, and a second working state in which the shaft diameter of the first end of the roller brush outer shaft assembly 1 is smaller than the shaft diameter of the second end; in the first working state, since the outer diameters of the roller brush outer shaft assembly 1 are the same at the left and right ends, both can clean the floor; and in the second working state, since the roller brush outer shaft assembly 1 has a large opening at the first end and the floor, the air pump (not shown in the figure) can easily generate a large negative pressure here, which can accelerate the guidance of hair to be collected at the first end away from the motor end, and finally collect the hair into the dust box under the action of negative pressure suction to avoid hair entanglement.

[0058] Optionally, see Figures 6 to 8In this embodiment, the rotary telescopic assembly 3 includes: a telescopic internal threaded member 31, a telescopic external threaded member 32 and a telescopic cover 33; the second end of the telescopic external threaded member 32 is in transmission connection with the driving member, and its outer circumference has an external thread 321; specifically, the second end of the telescopic external threaded member 32 is a plug-in convex portion 322, which is fixedly connected with the plug-in groove (not shown in the figure) at the output end of the driving member. The first end of the telescopic internal threaded member 31 is fixedly connected with the roller brush inner shaft assembly 2, and its inner circumference has an internal thread 311 that matches the external thread 321; specifically, the first end of the telescopic internal threaded member 31 has a spline groove 313, and the second end of the roller brush inner shaft assembly 2 is fixedly connected with the telescopic external threaded member 32 through the spline 8, the screw 7 and the spline groove 313 of the telescopic internal threaded member 31. The first end of the telescopic internal threaded member 31 has a blocking wall 312 that blocks the movement of the external thread 321 of the telescopic external threaded member 32 to form the first extreme position of the rotating telescopic assembly 3; the telescopic cover 33 is covered on the second end of the telescopic internal threaded member 31 to form the second extreme position of the rotating telescopic assembly 3.

[0059] Since the telescopic internal threaded member 31 and the telescopic external threaded member 32 are threadedly connected, and the telescopic internal threaded member 31 is fixedly connected to the roller brush inner shaft assembly 2, and the roller brush inner shaft assembly 2 is assembled with the roller brush outer shaft assembly 1, it is equivalent to assembling a load on the telescopic internal threaded member 31. In this way, when the telescopic external threaded member 32 receives a positive torque, the telescopic internal threaded member 31 can translate toward the first end to squeeze the inner wall of the first end of the inner cavity a, so that the first end of the roller brush outer shaft assembly 1 expands radially. After reaching the first limit position, the blocking wall 312 limits the relative movement of the external thread 321 of the telescopic external threaded member 32, so that the telescopic external threaded member 32 drives the telescopic internal threaded member 31 to rotate forward synchronously, and then drives the roller brush inner shaft assembly 2 to rotate forward. When the telescopic external threaded member 32 receives a reverse torque, its movement principle is similar, so it is not repeated.

[0060] In order to make the first end of the roller brush outer shaft assembly 1 realize radial expansion or radial contraction, optionally, please refer to Fig.11 , Figures 13 to 16In this embodiment, the inner cavity a of the roller brush outer shaft assembly 1 includes a first section b close to the first end and a second section c away from the first end, and the inner diameter of the first section b is smaller than the inner diameter of the second section c. The roller brush inner shaft assembly 2 includes a roller brush inner shaft 21, and the first end of the roller brush inner shaft 21 includes at least a first extrusion section f in the shape of a cone or a truncated cone, and a second extrusion section g connected to the first extrusion section f in the shape of a cylinder; so that when the first extrusion section f and the second extrusion section g of the roller brush inner shaft 21 extrudes the first section b of the inner cavity a, the first end of the roller brush outer shaft assembly 1 expands radially. Optionally, a front section e with a diameter smaller than the first extrusion section f and the second extrusion section g can be set in front of the first extrusion section f of the roller brush inner shaft 21, and when the front section e of the roller brush inner shaft 21 is located at the first section b of the inner cavity a, the first end of the roller brush outer shaft assembly 1 does not expand; so that the roller brush with a variable outer diameter is in the second working state.

[0061] In order to make the outer diameter of the first end of the inner cavity a of the roller brush outer shaft assembly 1 expand or shrink accordingly when it is squeezed or restored, optionally, please refer to Fig. 9 , Fig.13 , Fig.15 and Fig.16 In this embodiment, the roller brush outer shaft assembly 1 includes a hard rubber support portion 11 and a soft rubber connection portion 12, and a plurality of hard rubber support portions 11 are spaced apart along the circumferential direction, the inner wall of the hard rubber support portion 11 has a convex strip 111 extending toward the axis, and the end of the plurality of convex strips 111 close to the axis forms the first section b of the inner cavity a; the soft rubber connection portion 12 connects two adjacent hard rubber support portions 11; when the first end of the roller brush outer shaft assembly 1 contracts radially, the soft rubber connection portion 12 is in a wrinkled shape; when the first end of the roller brush outer shaft assembly 1 expands radially, the soft rubber connection portion 12 is in a stretched shape. The inner cavity a of the roller brush outer shaft assembly 1 is formed by the inner surfaces of the hard rubber support portion 11 and the soft rubber connection portion 12 and the end surface of the convex strip 111 close to the axis. In this way, when the first end of the roller brush inner shaft 21 squeezes into the first section b of the inner cavity a, the first section b of the inner cavity a formed by the convex strips 111 expands radially, thereby causing the hard rubber support portion 11 to expand radially, and the soft rubber connecting portion 12 correspondingly changes from a wrinkled shape to a stretched shape, thereby increasing the outer diameter of the roller brush outer shaft assembly 1.

[0062] Preferably, please refer to Figure 6 and Fig.17 In the present embodiment, the roller brush outer shaft assembly 1 further comprises a roller brush end cover 13 which is covered on the first end of the brush outer shaft body; since the first end of the roller brush outer shaft assembly 1 can be radially expanded or contracted, the roller brush end cover 13 also adaptively comprises a plurality of hard rubber end cover portions 131 and a soft rubber expansion portion 132 connected between adjacent hard rubber end cover portions 131.

[0063] Optionally, see Fig.13 and Fig.14In this embodiment, the convex strip 111 extends axially from the first end of the inner cavity a of the roller brush outer shaft assembly 1 to the second end; the roller brush inner shaft 21 also includes a driving sleeve 211 disposed on its outer periphery and having a slide groove h that slidably cooperates with the convex strip 111 and is used to drive the roller brush outer shaft assembly 1 to rotate coaxially; in this way, when the roller brush inner shaft 21 rotates, it can drive the roller brush outer shaft assembly 1 to rotate through the driving sleeve 211. For further information, please refer to Figure 6 and Fig.11 In this embodiment, the convex strip 111 has a step surface d, and the roller brush inner shaft assembly 2 also includes a gasket 22 and a compression spring 23 which are sequentially sleeved on the outer periphery of the roller brush inner shaft 21 and located between the step surface d and the driving sleeve 211; thus, when the rotating telescopic assembly 3 receives a positive torque, the roller brush inner shaft 21 translates toward the first end, and the driving sleeve 211 compresses the compression spring 23; when the rotating telescopic assembly 3 receives a reverse torque, or does not receive a torque, the compression spring 23 releases elastic potential energy, pushing the roller brush inner shaft 21 to translate toward the second end.

[0064] Please refer to Figures 1 to 4 On the other hand, this embodiment provides a cleaning device (not shown in the figure). It should be noted that the cleaning device can be a cleaning appliance such as a vacuum cleaner or a cleaning robot. The cleaning device includes: a chassis assembly 200, a roller brush cover assembly 400, a driving member, and the anti-winding roller brush 100 as described above. The chassis assembly 200 has a driving member mounting seat 210, and the driving member is assembled on the driving member mounting seat 210; the chassis assembly 200 and the roller brush cover assembly 400 are buckled to form a roller brush accommodating chamber 220, and the anti-winding roller brush 100 is assembled in the roller brush accommodating chamber 220 and is connected to the driving member by transmission. Specifically, the driving member can be selected as a roller brush tooth box assembly 300, and the lower end of the roller brush cover assembly 400 has a cleaning port 410, so that the anti-winding roller brush 100 can clean the ground, and clean dust, debris and other debris, and collect them into a dust box (not shown in the figure) under the action of the air pump and the anti-winding roller brush 100. Since the cleaning device has all the structures and connection relationships of the anti-entanglement roller brush 100, it has all the advantages of the anti-entanglement roller brush 100, which will not be elaborated here.

[0065] In order to realize the assembly of the anti-entanglement roller brush 100 and the chassis assembly 200, optionally, please refer to Figure 3 and Figure 5 In this embodiment, the second end of the anti-winding roller brush 100 is rotatably assembled in the roller brush receiving chamber 220 through the roller brush shaft bracket 4. Specifically, the roller brush shaft bracket 4 is clamped and fixed in the roller brush receiving chamber 220 by the chassis assembly 200 and the roller brush cover assembly 400. Preferably, the first end of the anti-winding roller brush 100 is suspended in the roller brush receiving chamber 220; in this way, the passage of hair can be facilitated.

[0066] In order to make the rotation of the roller brush body more stable, optionally, please refer to Figure 6 and Fig.18 In this embodiment, the roller brush body is rotatably arranged at the first end of the roller brush shaft bracket 4 through the bearing 5. Specifically, an annular convex ring 41 is arranged from the center of the roller brush shaft bracket 4 toward the first end, a bearing 5 is sleeved on the outer periphery of the annular convex ring 41, and the roller brush outer shaft assembly 1 of the roller brush body is sleeved on the outer ring of the bearing 5.

[0067] To prevent the hair from getting entangled on the drive shaft or the bearing 5 near the end of the drive member, thereby damaging the motor or causing a decrease in the cleaning effect. Figure 5 , Figure 6 , Fig. 9 , Fig.11 and Fig.18 In this embodiment, the second end of the roller brush body has a circumferentially arranged shaft wool strip 14 for covering the gap between the roller brush body and the roller brush shaft bracket 4. Specifically, the shaft wool strip 14 is arranged at the second end of the roller brush outer shaft assembly 1 of the roller brush body and has a circumferential shape. Further, the first end of the roller brush shaft bracket 4 has an annular cover edge 42 extending toward the roller brush body, and the roller brush body has a circumferentially arranged annular retaining ring 15, and the shaft wool strip 14 is arranged on the side of the annular retaining ring 15 close to the roller brush shaft bracket 4.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application 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 replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An anti-winding roller brush, having a first end away from a driving member and a second end close to the driving member, comprising a roller brush body, characterized in that: The outer circumference of the roller brush body is spirally configured with roller brush strips (6) and roller brush scraping strips (7), and the roller brush strips (6) and the roller brush scraping strips (7) are alternately arranged in the circumferential direction of the roller brush body; from the second end to the first end, the spiral direction of the roller brush strips (6) and the roller brush scraping strips (7) is in the same direction as the rotation direction of the roller brush body; and the hair bundles (61) of the roller brush strips (6) are inclined toward the first end.

2. The anti-winding roller brush according to claim 1, characterized in that: The outer periphery of the roller brush body has an assembly groove (16) extending in a spiral shape and having an inverted T-shaped cross section, and the roller brush bristle strip (6) and / or the roller brush scraper strip (7) has an assembly portion (62) with a T-shaped cross section that matches the assembly groove (16).

3. The anti-winding roller brush according to claim 1, characterized in that: The roller brush body comprises a roller brush outer shaft assembly (1), a roller brush inner shaft assembly (2) and a rotating telescopic assembly (3); the roller brush outer shaft assembly (1) has an inner cavity (a) arranged along the axial direction, and the outer diameter of the first end thereof is smaller than the outer diameter of the second end; the roller brush inner shaft assembly (2) and the rotating telescopic assembly (3) are fixedly connected, and at least partially movably assembled in the inner cavity (a), and can drive the roller brush outer shaft assembly (1) to rotate synchronously; wherein the rotating telescopic assembly (3) is used to drive the roller brush inner shaft assembly (2) to translate toward the first end direction or the second end direction when receiving torque, so as to squeeze or move away from the inner wall of the first end of the inner cavity (a), so as to make the first end of the roller brush outer shaft assembly (1) radially expand or contract, and after reaching the extreme position, drive the roller brush inner shaft assembly (2) to rotate.

4. The anti-winding roller brush according to claim 3, characterized in that: The rotary telescopic assembly (3) comprises: a telescopic internal threaded member (31), a telescopic external threaded member (32) and a telescopic cover (33); the second end of the telescopic external threaded member (32) is transmission-connected to a driving member, and its outer circumference has an external thread (321); the first end of the telescopic internal threaded member (31) is fixedly connected to the roller brush inner shaft assembly (2), and its inner circumference has an internal thread (311) that matches the external thread (321); the telescopic cover (33) is arranged on the second end of the telescopic internal threaded member (31).

5. The anti-winding roller brush according to claim 4, characterized in that: The inner cavity (a) comprises a first section (b) close to the first end, and a second section (c) far from the first end, the inner diameter of the first section (b) being smaller than the inner diameter of the second section (c); the roller brush inner shaft assembly (2) comprises a roller brush inner shaft (21), and the first end of the roller brush inner shaft (21) comprises at least a first extrusion section (f) in the shape of a cone or a truncated cone, and a second extrusion section (g) in the shape of a cylinder connected to the first extrusion section (f); so that when the first extrusion section (f) and the second extrusion section (g) of the roller brush inner shaft (21) extrudes the first section (b) of the inner cavity (a), the first end of the roller brush outer shaft assembly (1) expands radially.

6. The anti-winding roller brush according to claim 5, characterized in that: The roller brush outer shaft assembly (1) comprises a hard rubber support portion (11) and a soft rubber connection portion (12), and a plurality of the hard rubber support portions (11) are distributed at intervals along the circumferential direction, the inner wall of the hard rubber support portion (11) has a convex strip (111) extending in the axial direction, and a plurality of the convex strips (111) at one end close to the axial center form a first section (b) of the inner cavity (a); the soft rubber connection portion (12) connects two adjacent hard rubber support portions (11); when the first end of the roller brush outer shaft assembly (1) radially contracts, the soft rubber connection portion (12) is wrinkled; when the first end of the roller brush outer shaft assembly (1) radially expands, the soft rubber connection portion (12) is stretched.

7. A cleaning device, characterized in that: include: A chassis assembly (200), a roller brush cover assembly (400), a driving member, and an anti-entanglement roller brush as described in any one of claims 1 to 6; the chassis assembly (200) has a driving member mounting seat (210), and the driving member is assembled on the driving member mounting seat (210); the chassis assembly (200) and the roller brush cover assembly (400) are snapped together to form a roller brush accommodating cavity (220), and the anti-entanglement roller brush is assembled in the roller brush accommodating cavity (220) and is transmission-connected to the driving member.

8. The cleaning device according to claim 7, characterized in that The second end of the anti-winding roller brush is rotatably mounted in the roller brush accommodating chamber (220) via a roller brush shaft bracket (4), and the first end of the anti-winding roller brush is suspended in the roller brush accommodating chamber (220).

9. The cleaning device according to claim 7, characterized in that The roller brush body is rotatably arranged at the first end of the roller brush shaft bracket (4) via a bearing (5); and the second end of the roller brush body has a rotating shaft strip (14) arranged circumferentially and used to cover the gap between the roller brush body and the roller brush shaft bracket (4).

10. The cleaning device according to claim 9, characterized in that The first end of the roller brush shaft bracket (4) has an annular cover edge (42) extending toward the roller brush body, the roller brush body has an annular retaining ring (15) arranged circumferentially, and the rotating shaft strip (14) is arranged on a side of the annular retaining ring (15) close to the roller brush shaft bracket (4).

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