Rolling brush assembly and cleaning robot

Abstract

The utility model provides a rolling brush assembly and a cleaning robot, and relates to the technical field of household appliances. The rolling brush assembly comprises a roller and a bristle unit; the bristle unit is arranged on the outer side wall of the roller, a groove is formed in the outer side wall of the bristle unit, and the groove is spirally formed around the axis of the roller. According to the rolling brush assembly, the outer side wall of the bristle unit is provided with the groove, and the air channel for air circulation is formed. Due to the fact that the grooves are spirally formed around the axis of the roller, in the process that the rolling brush assembly rolls close to the ground, part of groove openings of the grooves face the ground all the time, and gaps exist between the bristle units and the ground. At the moment, hair can be sucked into the groove through the notch and is not prone to being wound on the bristle unit, and therefore normal use of the rolling brush assembly is not prone to being affected.

Description

Technical Field

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

[0002] At present, the roller brushes of sweepers on the market generally adopt the design of planting hair + rubber strips, full rubber strips or full planting hair. Among them, the full rubber strip roller brush is more expensive and easy to wear, so the planting hair + rubber strip and full planting hair roller brush are more widely used. However, when the planting hair + rubber strip and full planting hair roller brush are cleaning, the hair is easy to be entangled on the roller brush, affecting the normal use of the roller brush. Utility Model Content

[0003] In order to solve the problem in the prior art that hair is entangled on the roller brush, affecting the normal use of the roller brush, one of the purposes of the utility model is to provide a roller brush assembly.

[0004] The utility model provides the following technical solutions:

[0005] A roller brush assembly, comprising:

[0006] Roller; and

[0007] A bristle unit is arranged on the outer side wall of the drum. The outer side wall of the bristle unit is provided with a groove, and the groove is arranged in a spiral shape around the axis of the drum.

[0008] As a further optional solution to the roller brush assembly, the bristle unit includes a base fabric layer and a bristle layer;

[0009] The base fabric layer is arranged on the outer side wall of the drum, the base fabric layer has a first area and a second area, and the second area is arranged in a spiral shape around the axis of the drum;

[0010] The bristle layer is arranged in the first area, and the second area and the bristle layer located on both sides of the second area together form the groove.

[0011] As a further optional solution to the roller brush assembly, the first area includes a first sub-area and a second sub-area;

[0012] The bristle layer includes a soft bristle layer and a hard bristle layer. The soft bristle layer is arranged in the first sub-region, and the hard bristle layer is arranged in the second sub-region.

[0013] As a further optional solution for the roller brush assembly, the first sub-region is located on one side of the second region, and the second sub-region is located on the other side of the second region.

[0014] As a further optional solution for the roller brush assembly, the width of the second sub-region is D1, and 3mm≤D1≤5mm.

[0015] As a further optional solution to the roller brush assembly, the number of the grooves is N, where N is an integer greater than 1;

[0016] The rotation angle of the groove around the axis of the drum is 360° / N, and the N grooves are evenly distributed along the circumference of the drum.

[0017] As a further optional solution for the roller brush assembly, the width of the groove is D2, and 3mm≤D2≤5mm.

[0018] As a further optional solution for the roller brush assembly, the roller includes a cylinder, a bracket and a connecting shaft, the bracket is arranged on the inner side wall of the cylinder, and the connecting shaft passes through the bracket;

[0019] The bristle unit is arranged on the outer side wall of the cylinder.

[0020] As a further optional solution for the roller brush assembly, a limiting portion is provided at one end of the outer side wall of the cylinder, and the bristle unit is abutted against the limiting portion along the axial direction of the cylinder.

[0021] Another object of the utility model is to provide a cleaning robot.

[0022] The utility model provides the following technical solutions:

[0023] A cleaning robot comprises a robot body, an air suction component and the above-mentioned roller brush component;

[0024] The robot body has a cleaning cavity, the roller brush assembly is accommodated in the cleaning cavity, and the suction port of the suction assembly is connected to the cleaning cavity.

[0025] The embodiments of the present invention have the following beneficial effects:

[0026] In the above-mentioned roller brush assembly, the outer wall of the bristle unit is provided with a groove to form an air duct for air circulation. Since the groove is arranged in a spiral shape around the axis of the roller, when the roller brush assembly rolls close to the ground, part of the groove always faces the ground, so that there is a gap between the bristle unit and the ground. At this time, the hair can be sucked into the groove through this part of the groove, and is not easy to be entangled on the bristle unit, thereby not easily affecting the normal use of the roller brush assembly.

[0027] When the cleaning robot is working, the air suction component sucks the air in the cleaning cavity through the suction port, forming a negative pressure in the cleaning cavity. The external air flows into the cleaning cavity through the groove under the action of the pressure difference, and in the process, the hair is sucked into the groove, so that the hair is not easily entangled on the bristle unit.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 The overall structural diagram of a roller brush assembly provided by an embodiment of the utility model is shown;

[0031] Figure 2 A side view of a roller brush assembly provided by an embodiment of the utility model is shown;

[0032] Figure 3 A wind direction schematic diagram of a roller brush assembly provided by an embodiment of the utility model is shown;

[0033] Figure 4 A schematic structural diagram of a roller in a roller brush assembly provided by an embodiment of the utility model is shown;

[0034] Figure 5 A schematic structural diagram of a bristle unit in a roller brush assembly provided by an embodiment of the utility model is shown;

[0035] Figure 6 The figure shows the overall structure of a cleaning robot provided by an embodiment of the utility model.

[0036] Description of main component symbols:

[0037] 10-roller brush assembly; 20-robot body; 21-cleaning chamber; 22-felt; 30-suction assembly; 100-roller; 110-cylinder; 111-limiting portion; 120-bracket; 130-connecting shaft; 200-bristle unit; 201-groove; 210-base fabric layer; 211-first area; 211a-first sub-area; 211b-second sub-area; 212-second area; 220-bristle layer; 221-soft velvet layer; 222-hard velvet layer. DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0039] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When 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. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the template herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0043] Example

[0044] Please also read Figure 1 and Figure 2 This embodiment provides a roller brush assembly 10 for use in a cleaning robot. The roller brush assembly 10 includes a roller 100 and a bristle unit 200 .

[0045] The bristle unit 200 is disposed on the outer wall of the drum 100 . The outer wall of the bristle unit 200 is provided with a groove 201 , and the groove 201 is disposed in a spiral shape around the axis of the drum 100 .

[0046] Please combine Figure 3 In the above-mentioned roller brush assembly 10, the outer wall of the bristle unit 200 is provided with a groove 201 to form an air duct for air circulation. Since the groove 201 is arranged in a spiral shape around the axis of the roller 100, when the roller brush assembly 10 rolls on the ground, part of the groove 201 always faces the ground, so that there is a gap between the bristle unit 200 and the ground. At this time, the hair can be sucked into the groove 201 through this part of the groove, and it is not easy to be entangled on the bristle unit 200, so it is not easy to affect the normal use of the roller brush assembly 10.

[0047] In some embodiments, the roller brush assembly 10 adopts a full-hair-planting design, and is composed of a roller 100 and a bristle unit 200. Accordingly, the bristle unit 200 is sleeved on the roller 100.

[0048] In other embodiments, the roller brush assembly 10 may also adopt a design of planting hair + rubber strip. In addition to the roller 100 and the bristle unit 200, the roller brush assembly 10 also includes a rubber strip unit. In this case, the rubber strip unit and the bristle unit 200 are both arranged on the outer side wall of the roller 100 and arranged along the circumferential direction or axial direction of the roller 100.

[0049] See also Figure 4 In some embodiments, the drum 100 is composed of a drum body 110 , a bracket 120 and a connecting shaft 130 .

[0050] The barrel 110 is a cylinder, and the bristle unit 200 is disposed on the outer wall of the barrel 110. The bracket 120 is disposed on the inner wall of the barrel 110 and is fixedly connected to the barrel 110. The connecting shaft 130 is passed through the bracket 120 and is fixedly connected to the bracket 120.

[0051] When in use, the driving component in the cleaning robot drives the connecting shaft 130 to roll, and then drives the cylinder 110 to roll through the bracket 120.

[0052] Optionally, the bracket 120 and the barrel 110 are integrally formed, and the bracket 120 and the barrel 110 are made of plastic or metal.

[0053] Optionally, the connecting shaft 130 and the bracket 120 are interference fit to achieve relative fixation.

[0054] Furthermore, a limiting portion 111 is disposed at one end of the outer wall of the cylinder 110 , and the bristle unit 200 is abutted against the limiting portion 111 along the axial direction of the cylinder 110 .

[0055] When in use, the limiting portion 111 can limit the movement of the bristle unit 200 relative to the barrel 110 along the axial direction of the barrel 110, so that the connection between the bristle unit 200 and the barrel 110 is more stable.

[0056] Optionally, the limiting portion 111 is disposed around the barrel 110 , and the limiting portion 111 and the barrel 110 are integrally formed.

[0057] See also Figure 5 In some embodiments, the bristle unit 200 is composed of a base fabric layer 210 and a bristle layer 220 .

[0058] The base fabric layer 210 is disposed on the outer wall of the drum 100. The base fabric layer 210 has a first region 211 and a second region 212, and the second region 212 is disposed in a spiral shape around the axis of the drum 100.

[0059] Accordingly, the bristle layer 220 is disposed in the first area 211 . The second area 212 is vacant, and the second area 212 and the bristle layer 220 located on both sides of the second area 212 together form a groove 201 .

[0060] At this time, the surface of the second area 212 facing away from the drum 100 is the bottom of the groove 201 , and the side surfaces of the bristle layer 220 on both sides of the second area 212 are the walls of the groove 201 .

[0061] Optionally, the base fabric layer 210 is made of black polyester, and the fluff is woven in the first area 211 of the base fabric layer 210 to form the bristle layer 220. The fluff constituting the bristle layer 220 is relatively short, which is suitable for walking on the carpet.

[0062] In addition, the bristle layer 220 and the base fabric layer 210 are wound and adhered to the drum 100 and are fixedly connected to the drum 100 .

[0063] Furthermore, in some embodiments, the number of the grooves 201 is N, where N is an integer greater than 1.

[0064] In addition, the rotation angle of the groove 201 around the axis of the drum 100 is 360° / N, and the N grooves 201 are evenly distributed along the circumference of the drum 100 .

[0065] The rotation angle of the groove 201 around the axis of the drum 100 refers to the central angle of the arc-shaped projection formed after the groove 201 is projected onto any cross section of the drum 100 along the axis direction of the drum 100 .

[0066] Correspondingly, the number of the first regions 211 and the number of the second regions 212 are respectively N, and the N first regions 211 and the N second regions 212 are alternately arranged along the circumferential direction of the drum 100 .

[0067] Optionally, the number of the grooves 201 is two, and the rotation angle of each groove 201 around the axis of the drum 100 is 180°. In addition, the two grooves 201 are symmetrically arranged about the axis of the drum 100.

[0068] Alternatively, the number of the grooves 201 may be three, four or more, and the rotation angle of each groove 201 around the axis of the drum 100 corresponds to 120°, 90°, etc.

[0069] In some embodiments, the width of the groove 201 is D2, satisfying 3 mm ≤ D2 ≤ 5 mm.

[0070] It is understandable that if the width of the groove 201 is too large, the surface area of ​​the roller brush assembly 10 occupied by the groove 201 is larger, resulting in a smaller area of ​​the bristle layer 220, which affects the cleaning function of the roller brush assembly 10. If the width of the groove 201 is too small, it is difficult to smoothly suck the hair into the groove 201.

[0071] Therefore, by selecting the groove 201 with an appropriate width, the hair is not easily entangled on the bristle unit 200 while ensuring that the roller brush assembly 10 has sufficient cleaning function.

[0072] Optionally, D2 can be 3mm, 3.2mm, 3.4mm, 3.6mm, 3.8mm, 4mm, 4.2mm, 4.4mm, 4.6mm, 4.8mm, 5mm or any value between 3mm and 5mm.

[0073] Further, the first region 211 includes a first sub-region 211 a and a second sub-region 211 b . Accordingly, the bristle layer 220 includes a soft velvet layer 221 and a hard velvet layer 222 .

[0074] The soft pile layer 221 is arranged in the first sub-region 211a, and the hard pile layer 222 is arranged in the second sub-region 211b.

[0075] When cleaning a carpet or a floor, the hard pile layer 222 can better throw up large particles or debris remaining on the bottom layer of the carpet, and the soft pile layer 221 further completes the cleaning, making the cleaning more thorough.

[0076] Optionally, soft pile is woven in the first sub-region 211a of the base fabric layer 210 to form a soft pile layer 221, and the material of the soft pile is Y-type nylon BCF yarn.

[0077] Similarly, hard pile is woven in the second sub-region 211 b of the base fabric layer 210 to form a hard pile layer 222 , and the material of the hard pile is O-type nylon BCF yarn.

[0078] In some embodiments, the first sub-region 211 a is located on one side of the second region 212 , and the second sub-region 211 b is located on the other side of the second region 212 .

[0079] At this time, the groove 201 is formed between the soft pile layer 221 and the hard pile layer 222 .

[0080] Exemplarily, each first sub-region 211a and a second sub-region 211b together constitute a first region 211. Along the circumference of the drum 100, the first sub-region 211a, the second sub-region 211b and the second region 212 are arranged in sequence, and the base fabric layer 210 has multiple groups of first sub-regions 211a, second sub-regions 211b and second regions 212.

[0081] Alternatively, the base fabric layer 210 has a plurality of first regions 211 and second regions 212. The first regions 211 and second regions 212 are arranged in sequence along the circumference of the drum 100. The first regions 211 are alternately arranged as first sub-regions 211a and second sub-regions 211b. For example, the 2n-1th first region 211 is arranged as the first sub-region 211a, and the 2nth first region 211 is arranged as the second sub-region 211b, where n is a positive integer.

[0082] In some other embodiments, both sides of the second area 212 may be the first sub-areas 211 a. In this case, the groove 201 is formed between the two soft pile layers 221 .

[0083] Alternatively, both sides of the second region 212 may be the second sub-regions 211 b. In this case, the groove 201 is formed between the two hard pile layers 222.

[0084] Alternatively, both sides of part of the second area 212 are first sub-areas 211a, and both sides of the remaining second area 212 are second sub-areas 211b. In this case, part of the groove 201 is formed between two soft pile layers 221, and the remaining groove 201 is formed between two hard pile layers 222.

[0085] Furthermore, the width of the second sub-region 211 b is D1, and 3 mm ≤ D1 ≤ 5 mm.

[0086] It is understandable that if the width of the second sub-region 211b is too large, the area occupied by the hard pile layer 222 is large, and the area occupied by the soft pile layer 221 is relatively small, which will cause the cleaning ability of the above-mentioned roller brush assembly 10 to deteriorate, and it is not conducive to the roller brush assembly 10 to sweep up all impurities such as dust. If the width of the second sub-region 211b is too small, the area occupied by the hard pile layer 222 is small, which is not conducive to throwing up large particles or debris remaining on the bottom layer of the carpet.

[0087] Therefore, by selecting the second sub-region 211b with an appropriate width, it is possible to take into account both the ability of the roller brush assembly 10 to clean impurities such as dust and the ability to throw up large particles or debris remaining on the bottom layer of the carpet.

[0088] Optionally, D1 can be 3mm, 3.2mm, 3.4mm, 3.6mm, 3.8mm, 4mm, 4.2mm, 4.4mm, 4.6mm, 4.8mm, 5mm or any value between 3mm and 5mm.

[0089] In summary, the roller brush assembly 10 forms an air duct for air circulation by providing the groove 201 on the outer wall of the bristle unit 200. Since the groove 201 is provided in a spiral shape around the axis of the roller 100, when the roller brush assembly 10 rolls on the ground, part of the groove 201 always faces the ground, so that there is a gap between the bristle unit 200 and the ground. At this time, the hair can be sucked into the groove 201 through this part of the groove, and it is not easy to be entangled on the bristle unit 200, so it is not easy to affect the normal use of the roller brush assembly 10.

[0090] See also Figure 6 This embodiment also provides a cleaning robot, specifically a sweeping robot, which includes a robot body 20, an air suction component 30 and the above-mentioned roller brush component 10.

[0091] Specifically, the robot body 20 has a cleaning cavity 21 , and an opening of the cleaning cavity 21 is exposed on the bottom surface of the robot body 20 .

[0092] Accordingly, the roller brush assembly 10 is accommodated in the cleaning chamber 21. The roller brush assembly 10 is rotatably connected to the robot body 20 and rolls under the driving of the driving component.

[0093] In addition, the suction component 30 is disposed inside the robot body 20 , and a suction port of the suction component 30 is connected to the cleaning chamber 21 .

[0094] When the cleaning robot is working, the suction assembly 30 sucks air in the cleaning chamber 21 through the suction port, forming a negative pressure in the cleaning chamber 21. External air flows into the cleaning chamber 21 through the groove 201 under the action of the pressure difference, and in the process, the hair is sucked into the groove 201, so that the hair is not easily entangled on the bristle unit 200.

[0095] In some embodiments, a felt 22 is disposed on the bottom surface of the robot body 20 , and the felt 22 is located at the opening periphery of the cleaning chamber 21 .

[0096] When in use, the felt 22 contacts the ground or carpet surface, sealing the periphery of the cleaning chamber 21, so that the cleaning chamber 21 is connected to the outside mainly through the groove 201, which is more conducive to air entering the cleaning chamber 21 from the front side of the roller brush assembly 10 and sucking hair into the groove 201.

[0097] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limiting, and thus other examples of the exemplary embodiments may have different values.

[0098] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0099] The above-mentioned embodiments only express several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A roller brush assembly, characterized in that: include: roller; as well as A bristle unit, wherein the bristle unit is arranged on the outer side wall of the drum, the outer side wall of the bristle unit is provided with a groove, and the groove is arranged in a spiral shape around the axis of the drum; The bristle unit comprises a base fabric layer and a bristle layer; The base fabric layer is arranged on the outer side wall of the drum, the base fabric layer has a first area and a second area, and the second area is arranged in a spiral shape around the axis of the drum; The bristle layer is arranged in the first area, and the second area and the bristle layer located on both sides of the second area together form the groove.

2. The roller brush assembly according to claim 1, characterized in that: The first region includes a first sub-region and a second sub-region; The bristle layer includes a soft bristle layer and a hard bristle layer. The soft bristle layer is arranged in the first sub-region, and the hard bristle layer is arranged in the second sub-region.

3. The roller brush assembly according to claim 2, characterized in that: The first sub-region is located on one side of the second region, and the second sub-region is located on the other side of the second region.

4. The roller brush assembly according to claim 2, characterized in that: The width of the second sub-region is D1, and 3mm≤D1≤5mm.

5. The roller brush assembly according to any one of claims 1 to 4, characterized in that: The number of the grooves is N, where N is an integer greater than 1; The rotation angle of the groove around the axis of the drum is 360° / N, and the N grooves are evenly distributed along the circumference of the drum.

6. The roller brush assembly according to any one of claims 1 to 4, characterized in that: The width of the groove is D2, and 3mm≤D2≤5mm.

7. The roller brush assembly according to any one of claims 1 to 4, characterized in that: The drum comprises a cylinder, a bracket and a connecting shaft, wherein the bracket is arranged on the inner side wall of the cylinder, and the connecting shaft passes through the bracket; The bristle unit is arranged on the outer side wall of the cylinder.

8. The roller brush assembly according to claim 7, characterized in that: A limiting portion is provided at one end of the outer wall of the cylinder, and the bristle unit is abutted against the limiting portion along the axial direction of the cylinder.

9. A cleaning robot, characterized in that: It comprises a robot body, an air suction component and a roller brush component as described in any one of claims 1 to 8; The robot body has a cleaning cavity, the roller brush assembly is accommodated in the cleaning cavity, and the suction port of the suction assembly is connected to the cleaning cavity.

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