A rolling brush assembly and a self-moving robot

Abstract

The embodiment of the present application provides a kind of roll brush assembly and self-moving robot, roll brush assembly includes: roller;Wherein, the outer wall of the roller is equipped with soft glue brush, the soft glue brush has fold line type structure, and the first side of the fold line type structure has notch;Along the direction of the middle part of the fold line type structure to the one end of the roller, the notch separates the first side where it is into first section and second section, and the first section and the second section have included angle between them.The technical scheme provided by the embodiment of the present application is advantageous to increase the pressure difference of the middle section of soft glue brush, so that dust collection is more concentrated, while the angle of the two side sections of soft glue brush is slowed down, the strength of the two ends of soft glue brush is guaranteed, and the air inlet is also more smooth, so that the external garbage and dust can be continuously gathered in the dust collection area of the middle part of soft glue brush in the process of the rotation of roll brush assembly, and the dust collection capacity is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of intelligent technology, and in particular to a roller brush assembly and a self-moving robot. Background Technology

[0002] With the development of technology, various smart devices have entered people's lives to make them more convenient, such as robotic vacuum cleaners. Most robotic vacuum cleaners include a roller brush, which is used to collect debris. Many existing robotic vacuum cleaners use soft rubber roller brushes, which are less abrasive to floors, especially carpets, compared to bristle roller brushes, minimizing damage to the user's floors and carpets.

[0003] However, existing robotic vacuum cleaners using soft rubber roller brushes still have certain drawbacks. For example, they have low dust collection capacity, and the air intake duct is designed to be too long, resulting in increased resistance, increased pressure drop, and thus increased loss of air pressure, which cannot effectively improve cleaning efficiency. Summary of the Invention

[0004] In view of the above problems, embodiments of the present invention are proposed to provide a roller brush assembly and a self-moving robot that solve the above problems.

[0005] In one embodiment of the present invention, a roller brush assembly is provided, comprising: a roller; wherein,

[0006] The outer wall of the roller is provided with a soft rubber brush, which has a zigzag structure and a groove on the first side of the zigzag structure.

[0007] Along one end of the roller to the middle of the zigzag structure, the slot divides the first side into a first segment and a second segment, with an included angle between the first segment and the second segment.

[0008] Optionally, a transition adhesive column is provided in the groove, and the transition adhesive column is connected to the first segment and the second segment respectively.

[0009] Optionally, the transition rubber column is detachably connected to the roller, and the angle between the first segment and the second segment can be adjusted by changing the relative position of the transition rubber column and the roller.

[0010] Optionally, the transition rubber column has a radial line parallel to the central axis of the roller;

[0011] The angle between the first segment and the radial line is different from the angle between the second segment and the radial line.

[0012] Optionally, the angle between the first segment and the radial line is smaller than the angle between the second segment and the radial line.

[0013] Optionally, the polygonal structure further includes a second side, and the first side and the second side have an included angle, wherein the included angle is not less than 160 degrees.

[0014] Optionally, the height of the first segment relative to the roller gradually decreases along the direction from one end of the roller to the middle of the roller.

[0015] Optionally, the tangent of the roller passing through the connection point between the soft rubber brush and the roller forms an angle with the soft rubber brush.

[0016] Optionally, the angle between the soft rubber brush and the tangent is an acute angle along the rotation direction of the roller.

[0017] Optionally, there are multiple soft rubber brushes, and the multiple soft rubber brushes include multiple first soft rubber brushes and multiple second soft rubber brushes that are spaced apart;

[0018] The height of the first soft rubber brush is greater than the height of the second soft rubber brush relative to the roller.

[0019] Optionally, there is a ground contact width between two adjacent first soft rubber brushes, the ground contact width being such that at least one of the plurality of first soft rubber brushes is in contact with the ground.

[0020] Optionally, it also includes a brush shaft;

[0021] A first limiting part is provided on the inner wall of the roller;

[0022] The roller brush shaft has a second limiting part that cooperates with the first limiting part;

[0023] The brush shaft extends into the drum, and the first limiting part is connected to the second limiting part so that the brush shaft drives the drum to rotate.

[0024] Optionally, the inner wall of the roller is provided with a support adhesive position, and the support adhesive position is provided with a through hole;

[0025] The first limiting part is a limiting groove provided on the through hole;

[0026] The second limiting part is a limiting protrusion provided on the outer wall of the roller brush shaft.

[0027] Optionally, the inner wall of the roller is further provided with a first anti-fooling part;

[0028] The brush shaft has a second anti-mistake part that works in conjunction with the first anti-mistake part;

[0029] When the first anti-mistake part and the second anti-mistake part are oriented together, the first limiting part and the second limiting part are connected.

[0030] Optionally, the first foolproof part includes a plurality of stops, and the plurality of stops are arranged around the inner wall of the roller;

[0031] The second anti-foolproof part is a circular baffle, the outer diameter of which matches the inner diameter of the roller.

[0032] Optionally, it may also include a drive bracket and a rotating bracket;

[0033] One end of the roller brush shaft is provided with a drive groove, and the other end is provided with a rotation groove;

[0034] The drive bracket is connected to the roller and the drive groove respectively;

[0035] The rotating bracket is connected to the roller and the rotating groove respectively.

[0036] Optionally, the drive bracket includes a first end cap, a first connecting cylinder, and a drive rod;

[0037] The first connecting cylinder is disposed on the first end cap;

[0038] The drive rod is located inside the first connecting cylinder, connected to the first end cap, and extends through the first end cap in a direction away from the first connecting cylinder; there is a first gap between the drive rod and the first connecting cylinder;

[0039] The first connecting cylinder is sleeved inside the roller, the driving rod is sleeved inside the driving groove, and the groove wall of the driving groove is sleeved inside the first gap; when the driving bracket rotates, it drives the roller brush shaft to rotate through the driving rod.

[0040] Optionally, the rotating bracket includes a fixing part, a rotating shaft, and a bearing component;

[0041] The fixed part is fixedly connected to the roller and the rotating groove respectively;

[0042] The rotating shaft is fixedly connected to the fixing part;

[0043] The bearing component is connected to the rotating shaft;

[0044] When the roller brush shaft rotates, it drives the fixing part to rotate.

[0045] Optionally, the fixing part includes a second end cap, a second connecting cylinder, and a connecting post;

[0046] The second connecting cylinder is disposed on the second end cap;

[0047] The connecting post is located inside the second connecting cylinder and connected to the second end cap, and there is a second gap between the connecting post and the second connecting cylinder; a receiving groove is provided inside the connecting post, and the opening of the receiving groove is located on the second end cap;

[0048] One end of the rotating shaft extends into the receiving groove and is fixedly connected to the connecting column, while the other end is located outside the receiving groove;

[0049] The bearing component is sleeved on one end of the rotating shaft located in the receiving groove;

[0050] The second connecting cylinder is sleeved inside the roller, the connecting column is sleeved inside the rotating groove, and the groove wall of the rotating groove is sleeved inside the second gap.

[0051] In another embodiment of the present invention, a roller brush assembly is provided, comprising: a roller; wherein,

[0052] The outer wall of the roller is provided with a soft rubber brush, which has a zigzag structure and a groove on the first side of the zigzag structure.

[0053] Along one end of the roller to the middle of the zigzag structure, the groove divides the first side into a first segment and a second segment. A transition adhesive column is provided in the groove, and the transition adhesive column is connected to the first segment and the second segment respectively.

[0054] Accordingly, embodiments of the present invention also provide a self-moving robot, comprising: a main unit and a roller brush assembly disposed on the main unit; wherein,

[0055] The roller brush assembly includes: a roller; a soft rubber brush is provided on the outer wall of the roller, the soft rubber brush has a zigzag structure, and a groove is provided on the first side of the zigzag structure;

[0056] Along one end of the roller to the middle of the zigzag structure, the slot divides the first side into a first segment and a second segment, with an included angle between the first segment and the second segment.

[0057] The technical solution provided in this invention involves a soft rubber brush on the outer wall of a roller with a zigzag structure. A groove is located on the first side of this zigzag structure, dividing it into a first segment and a second segment, with an included angle between them. The groove deepens the bend in the middle of the zigzag structure without affecting the angles at both ends, which helps increase the pressure difference in the middle section of the soft rubber brush, thus concentrating dust collection. Simultaneously, it reduces the angles of the two sides of the soft rubber brush, ensuring the strength of both ends while allowing for smoother and more gentle airflow. During the rotation of the roller brush assembly, external debris and dust can continuously accumulate in the dust collection area in the middle of the soft rubber brush, effectively improving dust collection capacity. Attached Figure Description

[0058] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0059] Figure 1 This is a schematic diagram of the planar structure of a roller brush assembly provided in an embodiment of the present invention;

[0060] Figure 2 This is a three-dimensional structural diagram of a roller brush assembly provided in an embodiment of the present invention;

[0061] Figure 3 This is a three-dimensional structural diagram of a roller provided according to an embodiment of the present invention;

[0062] Figure 4 A schematic diagram illustrating the effect of the roller brush assembly provided in an embodiment of the present invention on the air intake velocity during use;

[0063] Figure 5 This is a schematic diagram illustrating the effect of a roller brush assembly provided in an embodiment of the present invention on the differential pressure of the incoming air during use.

[0064] Figure 6 A schematic diagram illustrating the effect of the roller brush assembly provided in an embodiment of the present invention on the air intake gradient during use;

[0065] Figure 7 This is a schematic diagram illustrating the effect of a roller brush on the inlet air gradient in existing technologies.

[0066] Figure 8 This is a schematic diagram of the structure of a roller in a coordinate system according to an embodiment of the present invention;

[0067] Figure 9 for Figure 8 Enlarged view of point B in the middle;

[0068] Figure 10 This is a schematic diagram showing the angle between the soft rubber brush and the tangent of the roller according to an embodiment of the present invention;

[0069] Figure 11 This is a schematic diagram showing the angle between a soft rubber brush and the ground according to an embodiment of the present invention;

[0070] Figure 12 This is a cross-sectional structural diagram of a roller brush assembly provided in an embodiment of the present invention;

[0071] Figure 13 This is a schematic cross-sectional view of a roller provided in an embodiment of the present invention;

[0072] Figure 14 This is a three-dimensional structural diagram of a brush shaft provided in an embodiment of the present invention;

[0073] Figure 15 This is a schematic cross-sectional view of a brush shaft provided in an embodiment of the present invention.

[0074] Figure 16 This is a schematic diagram of the planar structure of a drive groove provided in an embodiment of the present invention;

[0075] Figure 17 This is a schematic diagram of the planar structure of a rotating groove provided in an embodiment of the present invention;

[0076] Figure 18 This is a three-dimensional structural diagram of a drive bracket provided in an embodiment of the present invention;

[0077] Figure 19 This is a cross-sectional structural diagram of a drive bracket provided in an embodiment of the present invention;

[0078] Figure 20 for Figure 18 A schematic diagram of the main structure of the drive bracket in the middle;

[0079] Figure 21 for Figure 18 A rear view schematic diagram of the drive bracket in the middle;

[0080] Figure 22 This is a schematic diagram of the planar structure of a rotating bracket provided in an embodiment of the present invention;

[0081] Figure 23 This is a cross-sectional structural diagram of a rotating bracket provided in an embodiment of the present invention;

[0082] Figure 24 for Figure 22 A schematic diagram of the planar structure of the rotating bracket along the direction of arrow G;

[0083] Figure 25 for Figure 22 A schematic diagram of the planar structure of the rotating bracket along the direction of arrow H. Detailed Implementation

[0084] To enable those skilled in the art to better understand the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0085] In some of the processes described in the specification, claims, and accompanying drawings of this invention, multiple operations are included that appear in a specific order. These operations may be performed out of order or in parallel. Furthermore, these processes may include more or fewer operations, and these operations may be performed sequentially or in parallel. It should be noted that the terms "first," "second," etc., used herein are used to distinguish different messages, devices, modules, etc., and do not represent a sequential order, nor do they limit "first" and "second" to different types.

[0086] In practicing the embodiments of the present invention, the inventors discovered that the existing technology of sweeping robots using soft rubber roller brush structure has certain defects, such as low dust collection capacity, excessively long air intake duct design, increased resistance, increased pressure drop, and thus increased loss of air pressure, which cannot effectively improve cleaning efficiency.

[0087] The inventors believe the reason for this is that current soft rubber roller brush structures are relatively simple. Most soft rubber roller brush structures consist of soft rubber scrapers, all of which are straight. This structure has drawbacks: firstly, it cannot increase the bend angle of the scraper. Increasing the bend angle would prevent the scraper ends from contacting the ground, thus failing to achieve the desired dust removal and collection effect; secondly, ensuring contact at both ends would result in excessively high scraper ends, reducing their strength and making them prone to bending during rotation, even blocking the air inlet, leading to low dust collection capacity. Furthermore, the existing scraper structure is continuous and uninterrupted, resulting in an excessively long air duct between the two scrapers, increasing resistance and pressure drop, thus increasing air pressure loss and failing to effectively improve cleaning efficiency.

[0088] To address the aforementioned issues, embodiments of the present invention provide a roller brush assembly and a self-moving robot, which can make dust collection more concentrated, air intake smoother and more gentle, and improve dust collection capacity.

[0089] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0090] Example 1

[0091] Figure 1 This is a schematic diagram of the planar structure of a roller brush assembly according to an embodiment of the present invention. Figure 2 This is a three-dimensional structural diagram of a roller brush assembly provided in an embodiment of the present invention. Figure 3 This is a three-dimensional structural diagram of a roller provided in an embodiment of the present invention, as shown below. Figures 1 to 3 As shown.

[0092] In one embodiment of the present invention, a roller brush assembly is provided, comprising: a roller.

[0093] The roller has a soft rubber brush 11 on its outer wall. The soft rubber brush 11 has a zigzag structure, and the first side of the zigzag structure has a groove 111. Along the direction from one end of the roller to the middle of the zigzag structure, the groove 111 divides the first side into a first segment 112 and a second segment 113, and there is an included angle between the first segment 112 and the second segment 113.

[0094] The technical solution provided in this embodiment of the invention features a soft rubber brush 11 on the outer wall of the roller with a zigzag structure. A groove 111 is located on the first side of the zigzag structure, dividing the first side into a first segment 112 and a second segment 113, with an included angle between the first segment 112 and the second segment 113. The groove 111 deepens the bend in the middle of the zigzag structure without affecting the angles at both ends, which helps increase the pressure difference in the middle section of the soft rubber brush 11, thus concentrating dust collection. Simultaneously, it reduces the angles of the two sides of the soft rubber brush 11, ensuring the strength of both ends of the soft rubber brush 11 while also making the airflow smoother and more gentle. During the rotation of the roller brush assembly, external debris and dust can continuously accumulate in the dust collection area in the middle of the soft rubber brush 11, effectively improving dust collection capacity.

[0095] It should be noted that the soft rubber brush 11 in this embodiment of the invention can be implemented by a scraper. The soft rubber brush 11 having a zigzag structure means that the soft rubber brush 11 is roughly a V-shaped structure, such as... Figure 1In the illustrated embodiment, the soft rubber brush 11 includes segments AC and CF, which serve as two sides of a V-shaped structure. Specifically, one of segments AC and CF is the first side of the zigzag structure, and the other is the second side. The included angle between segments AC and CF is the included angle of the V-shaped structure, and at least one side of the V-shaped structure has a groove. Figure 1 In the embodiment shown, slots 111 are respectively provided on segments AC and CF, and each slot 111 divides its side into a first segment 112 and a second segment 113, as shown. Figure 1 In the illustrated embodiment, slot 111 divides segment AC into segments AB and BC, where segment AB is the first segment 112 and segment BC is the second segment 113. Slot 111 divides segment CF into segments CD and DF, where segment DF is the first segment 112 and segment DC is the second segment 113. Segments BCD can also be referred to as the middle segment of the V-shaped structure, and the included angle of the V-shaped structure is also the included angle between segments BC and CD. Segments AB and DF are the two end segments or two side segments, and the angles at the two ends of the V-shaped structure refer to the included angle between segments AB and BC, and the included angle between segments CD and DF.

[0096] The following description uses a V-shaped structure with a broken line shape as an example to illustrate the roller brush assembly provided in this embodiment of the invention.

[0097] In one feasible embodiment, the included angle at both ends of the V-shaped structure is greater than the included angle of the V-shaped structure itself; that is, the included angle between segments AB and BC is greater than the included angle between segments BC and CD. This results in a relatively gentle airflow angle for segments AB and DF, and a steeper airflow angle for segments BC and CD. (Continue to see...) Figure 2 A transition adhesive column 114 is provided inside the groove 111, which is connected to the first section 112 and the second section 113 respectively. The transition adhesive column 114 in the groove 111 makes the connection between the first section 112 and the second section 113 more stable, so as to ensure that the soft rubber brush 11 makes seamless contact with the ground.

[0098] Furthermore, the transition rubber column 114 is detachably connected to the roller. By changing the relative position of the transition rubber column 114 and the roller, the included angle between the first segment 112 and the second segment 113 can be adjusted. The transition rubber column 114 within the slot 111 allows adjustment of the included angle between segments AB and BC, and between segments CD and DF. Adjusting the included angle between the first segment 112 and the second segment 113 further ensures seamless contact between the soft rubber brush 11 and the ground, guaranteeing a seal and increasing the pressure differential. It is worth noting that in the embodiments described above and below, the description and arrangement of the first side of the zigzag structure also apply to the other side, and the description of the other side will not be repeated.

[0099] See Figure 4 In this embodiment of the invention, the zigzag structure further includes a second side, with the first and second sides forming the zigzag structure. Taking the example of a slot 111 respectively provided on the first and second sides of the zigzag structure, in the technical solution provided by this embodiment of the invention, the bend at the middle position of the zigzag structure, i.e., the included angle between segments BC and CD, can be set to a larger bend angle without affecting the angles at both ends of the zigzag structure. This is beneficial for increasing the pressure difference in the middle section of the soft rubber brush 11, thereby making the dust collection more concentrated. In one feasible embodiment, there is an included angle between the first and second sides, and the included angle is not less than 160 degrees.

[0100] Meanwhile, the angle between the first section 112 and the second section 113 can effectively reduce the angle of the two sides of the soft rubber brush 11, ensuring the strength of both ends of the soft rubber brush 11 while making the air intake smoother. Figure 4 The direction of the middle arrow indicates the airflow direction. An air intake channel is formed between the two soft rubber brushes 11. External air can enter the air intake channel from both ends of the air intake channel, and can also enter the air intake channel from the slot 111. This makes the air pressure gradually increase from the external environment to the dust collection area in the middle section (BCD section). This process makes the air intake smoother and more gradual. During the rotation of the roller, external garbage and dust can be continuously collected in the dust collection area in the middle of the soft rubber brush 11.

[0101] See Figure 5 In the technical solution provided by this invention, the air inlet channel has two pressure differential sections, which not only improves suction power but also assists in dust collection, making dust more concentrated and enhancing cleaning ability. Compared with the prior art, the technical solution provided by this invention has the following advantages:

[0102] 1. The soft rubber brush 11, also known as a scraper, in existing technologies, the scraper does not have grooves 111; the scraper is a continuous structure. The air intake channel formed between two adjacent scrapers is too long, resulting in increased resistance, increased pressure drop, and thus increased air pressure loss. See also... Figure 5 In this embodiment of the invention, the soft rubber brush 11 is provided with two slots 111. Therefore, the air inlet channel between the two soft rubber brushes 11 is divided into three air channels. Each air channel is relatively short, which can effectively reduce the impact of air channel resistance.

[0103] 2. After the air inlet duct is divided into two sections (111), the AB and DF sections have relatively gentle airflow angles, while the BC and CD sections have steeper and longer airflow angles. This results in slower airflow velocities in the AB and DF sections, and faster airflow velocities in the BCD sections. Figure 5The direction of the middle arrow indicates the airflow direction. In principle, the difference in airflow velocity creates a pressure difference zone at the two slots 111, forming pressure difference 1 and pressure difference 2. Compared to the dust collection area in the middle section, the path between the pressure difference zone at slot 111 and the external environment is relatively shorter, making it easier to entrain external dust. Therefore, dust will first converge and swirl at slot 111. During the rotation of the roller, there is an angle between sections AB and BC. Compared to the external environment, section AB of the air duct forms a section of wind pressure. Based on the wind pressure of section AB, section BC further forms a second section of wind pressure 113, thus creating a pressure difference zone at the two slots 111, forming pressure difference 1. For external dust, the journey to points B and D at slot 111 is shorter than the journey to point C, resulting in less wind pressure attenuation and making it easier to entrain external dust. Therefore, the two slots 111 serve as "secondary dust collection zones," providing auxiliary functions to the "primary dust collection zone" in the middle section. Combined with the characteristic of the fan assembly's suction radiation zone being "stronger in the middle and weaker on both sides," the two slots 111 can further enhance dust collection capacity. Due to the varying strength of the fan's suction radiation, some dust swirling in the slots 111 will enter the dust collection box with the fan, while the remaining dust will be carried in by the middle section, where the pressure difference is greater, for secondary aggregation to form the primary dust collection zone. The fan will then carry the dust into the dust collection box. In this embodiment of the invention, different fans can be selected according to different suction requirements. The position of the slots 111 is determined by the different radiation ranges created by the fans, so that the slots 111 can play an auxiliary and enhanced dust collection role, improving cleaning ability.

[0104] See Figure 6 In the technical solution provided by this embodiment of the invention, the air inlet channel has two additional pressure gradients, namely T1 and T2, where T1 is greater than T2. ​​This causes the airflow velocity to transition from slow to fast, resulting in a more uniform flow rate and reduced noise. See also Figure 7 In the existing technology, the scraper blade does not have grooves 111, the scraper blade is a continuous structure, and the pressure gradient in the air inlet channel is only one segment, that is... Figure 7 The pressure gradient is represented by T. Gradient T > Gradient T1 > Gradient T2. In this embodiment of the invention, the original gradient T is segmented into gradients T1 and T2, resulting in a gradual increase in air pressure during the air intake process. This reduces the adverse effects of sudden increases in air pressure, makes the flow velocity more uniform, and effectively reduces the consequences of airflow turbulence caused by different air pressures (or large pressure differences), while also effectively reducing noise. For example, the sound pressure level can be reduced by an average of 0.5–0.7 dB.

[0105] In this embodiment of the invention, different cleaning needs can be met by setting different included angles of the polygonal structure and different included angles between the first segment 112 and the second segment 113. The following describes the setting method of the soft rubber brush 11 by establishing a coordinate system.

[0106] See Figure 8 Using the axis of symmetry along the length of the roller as the X-axis and the axis of symmetry along the width of the roller as the Y-axis, an XY plane coordinate system is established. One projection of the roller onto the XY plane is... Figure 8 The floor plan shown.

[0107] like Figure 8 As shown in the embodiment of the invention, the first and second sides of the zigzag structure have an included angle, which is not less than 160 degrees. The included angle of the zigzag structure, that is, the included angle between segments BC and CD, is in the range of 160° to 175°, with 165° being the preferred angle. An included angle within this range is beneficial for increasing the pressure difference in the middle section, thereby making dust collection more concentrated. A transition rubber column 114 is provided in the slot 111. The included angle between segments AB and BC, and between segments CD and DF, can be adjusted through the transition rubber column 114 in the slot 111. By adjusting the included angle between the first segment 112 and the second segment 113, seamless contact between the soft rubber brush 11 and the ground can be ensured, guaranteeing sealing and increasing the pressure difference.

[0108] Further, see Figure 8 and Figure 9 The transition rubber column 114 has a radial line parallel to the central axis of the roller. The angle between the first segment 112 and the radial line is different from the angle between the second segment 113 and the radial line. Specifically, the radial line of the transition rubber column 114 parallel to the central axis of the roller... Figure 9 The line shown by the dashed line. The central axis of the roller is parallel to the X-axis. Therefore, the radial line of the transition rubber column 114 is parallel to the X-axis. The angle between the first segment 112 and the radial line can refer to the angle between the first segment 112 and the X-axis, that is, the deflection angle of the first segment 112. The angle between the second segment 113 and the radial line can refer to the angle between the second segment 113 and the X-axis, that is, the deflection angle of the second segment 113.

[0109] If the deflection angle of segment AB is the same as that of segment BC, meaning the deflection angle of segment AB continues the deflection angle of segment BC, then the endpoints A and F will deviate from the X-axis. This has two adverse effects: First, it will prevent the soft rubber brush 11 of segment AB or segment DF from simultaneously contacting the ground. Either point B will contact the ground while point A is off the ground, or point A will contact the ground while point B has deviated from the ground. This will reduce the length of the soft rubber brush 11 that contacts the ground, thus reducing the vacuum level. Second, to ensure that the soft rubber brush 11 of segment AB or segment DF contacts the ground, the height of the scraper at end A needs to be increased. This will result in an excessively high scraper at end A, weakening its rigidity and making it prone to edge flipping during rotation. If the deflection angle of segment AB is different from that of segment BC, the above adverse effects will not occur.

[0110] Furthermore, the angle between the first segment 112 and the radial line is smaller than the angle between the second segment 113 and the radial line. That is, the deflection angle of segment AB is smaller than the deflection angle of segment BC. See also... Figure 8 and combined Figure 5 The different angles between segments AB and BC and the X-axis create a pressure difference during drum rotation. Segment AB, with its angled deflection, experiences increased air pressure compared to the external environment. Segment BC, with its larger angle, further generates a second pressure level on top of the existing pressure. This creates a pressure differential zone between the two slots. For external dust, the path to points B and D in slot 111 is shorter than to point C, resulting in less pressure attenuation and easier dust entrainment. Therefore, the two slots 111 become "secondary dust collection zones," supporting the "primary dust collection zone" in the middle section. Combined with the fan assembly's suction power being "stronger in the middle and weaker on the sides," the two slots 111 further enhance dust collection capacity.

[0111] See also Figure 8 and Figure 9 In this embodiment of the invention, the deflection angles of segments BC and CD can be designed based on the contact area between the soft rubber brush 11 and the ground. Here, the deflection angles of segments BC and CD refer to the angles between segments BC and CD and the X-axis. In this embodiment, the deflection angles of segments BC and CD refer to the acute angles between segments BC and CD and the X-axis. Preferably, the deflection angles of segments BC and CD are 8°. The deflection angle of segment AB is smaller than that of segment BC; preferably, the deflection angles of segments AB and DF are 6°. In actual use, when the deflection angles of segments BC and CD are 8°, points B, C, and D are simultaneously in contact with the ground. This ensures seamless contact between the soft rubber brush 11 and the ground, guaranteeing a seal, and maximizes the "large V" shape of the scraper strip in the middle section of BCD, increasing the pressure difference. Considering all factors, a deflection angle of 8° for segments BC and CD results in the best dust collection effect. Meanwhile, the transition rubber column 114 in the slot 111 can adjust the deflection angle of the AB section and the DF section, which helps to reduce the angle of the two sides (AB section and DF section). While ensuring the strength of both ends of the soft rubber brush 11, it also makes the air intake smoother and more gentle, which is conducive to the dust continuously gathering in the dust collection area in the middle of the soft rubber brush 11.

[0112] To further improve the dust collection effect of the soft rubber brush 11 when it rotates, please refer to [link to relevant documentation]. Figure 8 In this embodiment of the invention, along the direction from one end of the roller to the middle of the roller, the height of the first segment 112 relative to the roller gradually decreases. That is, the height of the soft rubber brush 11 from point A to point B gradually decreases. Figure 8In the diagram, d1 represents the height of point A relative to the roller, and d2 represents the height of point B relative to the roller. The height d1 at point A is slightly higher than the height d2 at point B. This is because when the roller rolls in the direction of rotation, as it rotates forward, point A of the soft rubber brush 11 can first contact the ground, and the contact point gradually extends to point B. This allows dust to be carried by the soft rubber brush 11 from point A' to point B'. Points A' and B' refer to the points where points A and B contact the ground, and points C' and D' refer to the points where points C and D contact the ground. Since the height d1 at point A is slightly higher than the height d2 at point B, when point B touches the ground, point A is still in contact with the ground. That is, the scraper section A'B' matches the ground. This ensures that the dust is not left unscraped due to the gap between the soft rubber brush 11 and the ground. It also creates a temporary sealing effect between the soft rubber brush 11 and the ground, reducing the loss of wind pressure. The dust can also be more easily drawn into the dust box by the fan.

[0113] See Figure 10 and Figure 11 To prevent the soft rubber brush 11 from flipping over when it comes into contact with the ground, in this embodiment of the invention, the tangent of the roller at the connection between the soft rubber brush 11 and the roller forms an angle with the soft rubber brush 11. Figure 10 The dotted line represents a tangent to the roller. The soft rubber brush 11 forms an angle with this tangent, which can be acute along the roller's rotation direction. Specifically, the angle between the soft rubber brush 11 and the tangent is acute along the roller's rotation direction, preferably 70°. This angle allows the soft rubber brush 11 to be designed with a forward curve relative to the roller. When it first contacts the ground, the angle between the soft rubber brush 11 and the ground is also 70°, making it less prone to curling compared to a straight edge of 90°.

[0114] See Figure 3 and Figure 11 To reduce noise, in this embodiment of the invention, there are multiple soft rubber brushes 11, including multiple first soft rubber brushes 115 and multiple second soft rubber brushes 116 spaced apart. Relative to the roller, the height of the first soft rubber brushes 115 is greater than the height of the second soft rubber brushes 116. This can be understood as the first soft rubber brushes 115 being the taller soft rubber brushes 11, and the second soft rubber brushes 116 being the shorter soft rubber brushes 11. This alternating height structure of the multiple first soft rubber brushes 115 and the multiple second soft rubber brushes 116 helps reduce noise. Figure 11In the illustrated embodiment, the multiple soft rubber brushes 11 are arranged in an alternating high and low configuration. During rotation, the taller soft rubber brushes 11 scrape the floor (or carpet), raising dust, while the shorter soft rubber brushes 11, due to their lower height, create a gap between themselves and the ground, drawing in the raised dust through this gap. During rotation, the distance between two adjacent tall soft rubber brushes 11 shortens, while the distance between the middle low soft rubber brush 11 and one of the tall soft rubber brushes widens. This helps to stratify the high and low airflows, reducing the impact of airflow turbulence caused by the mixing of high and low airflows within the duct, and lowering noise.

[0115] See also Figure 11 To further improve dust collection efficiency, in this embodiment of the invention, there is a ground contact width between two adjacent first soft rubber brushes 115, and the ground contact width allows at least one of the multiple first soft rubber brushes 115 to contact the ground. Figure 11 d3 in the figure represents the ground contact width. By setting the width of d3, at least one first soft rubber brush 115 is always in contact with the ground when the roller rotates. This ensures that dust is not left unscraped due to gaps between the first soft rubber brush 115 and the ground, and also creates a temporary sealing effect between the first soft rubber brush 115 and the ground, reducing wind pressure loss. The dust is also more easily drawn into the dust box by the fan.

[0116] Further, see Figure 12 To achieve the rotation of the roller, in this embodiment of the invention, the roller brush assembly further includes a roller brush shaft 20. The roller is sleeved on the outside of the roller brush shaft 20, and the roller brush shaft 20 is connected to the roller and used to drive the roller to rotate. One possible implementation is as follows: [See...] Figures 12 to 15 A first limiting part 12 is provided on the inner wall of the roller. The roller brush shaft 20 has a second limiting part 21 that cooperates with the first limiting part 12. The roller brush shaft 20 extends into the roller, and the first limiting part 12 is connected to the second limiting part 21 so that the roller brush shaft 20 drives the roller to rotate.

[0117] One possible implementation of the roller brush shaft 20 is that it can be a columnar structure, with a first limiting part 12 provided on the outer surface of the columnar structure. Another possible implementation of the roller brush shaft 20, as shown in Figure 14, is that it includes multiple support plates 25, which intersect to form the roller brush shaft 20. For example, there are four support plates 25, which intersect to form a cross-shaped structure, and each support plate 25 is provided with a first limiting part 12. To enhance the support strength of each support plate 25, multiple reinforcing ribs 26 are provided between adjacent support plates 25. Compared to a columnar structure roller brush shaft 20, the roller brush shaft 20 formed by multiple support plates 25 can be lighter in weight while maintaining strength.

[0118] Further, see also Figure 13 The inner wall of the roller is provided with a support rubber position 13, and the support rubber position 13 is provided with a through hole 131. The support rubber position 13 can enhance the strength of the roller and prevent the roller from deforming when the roller brush shaft 20 drives the roller to rotate. The through hole 131 on the support rubber position 13 is for the roller brush shaft 20 to pass through so that the roller brush shaft 20 is fitted inside the roller. Based on the characteristic of the support rubber position 13 to enhance the strength of the roller, a first limiting part 12 can be provided on the support rubber position 13. One possible way is that the first limiting part 12 is a limiting groove provided on the through hole 131. Correspondingly, the second limiting part 21 is a limiting protrusion provided on the outer wall of the roller brush shaft 20. After the limiting protrusion is connected to the limiting groove, when the roller brush shaft 20 rotates, the limiting protrusion drives the roller to rotate through the limiting groove.

[0119] In this embodiment of the invention, since the soft rubber brush 11 is approximately V-shaped, the roller has a rotation direction when it rotates. See [link to relevant documentation]. Figure 8 The rolling direction is consistent with the opening direction of the V-shaped structure. The included angle of the V-shaped structure forms a dust collection area, which helps to enhance the dust collection effect and improve cleaning ability. Since the roller has a rotation direction, the roller brush shaft 20 and the roller need to be assembled according to the predetermined assembly direction. That is, one of the openings at both ends of the roller is the inlet, and the roller brush shaft 20 needs to enter the roller through the inlet for correct installation. If the roller brush shaft 20 is installed backwards, it may cause the roller brush shaft 20 to fail to drive the roller to rotate.

[0120] To avoid the user installing the brush shaft 20 and roller in reverse order, please refer to Figure 12 to... Figure 15 In this embodiment of the invention, a first anti-misalignment part 14 is also provided on the inner wall of the roller, and a second anti-misalignment part 22 is provided on the roller brush shaft 20 to cooperate with the first anti-misalignment part 14. When the first anti-misalignment part 14 and the second anti-misalignment part 22 are oriented together, the first limiting part 12 and the second limiting part 21 are connected. The first anti-misalignment part 14 and the second anti-misalignment part 22 can avoid the problem of reverse installation during assembly. If the user installs the roller brush shaft 20 and the roller in reverse during assembly, the first anti-misalignment part 14 and the second anti-misalignment part 22 cannot be connected. At this time, the first limiting part 12 and the second limiting part 21 also cannot be connected, and the roller brush shaft 20 cannot drive the roller to rotate.

[0121] One possible implementation is that the first anti-mistake part 14 includes multiple stops arranged around the inner wall of the roller. The second anti-mistake part 22 is a circular baffle, the outer diameter of which matches the inner diameter of the roller. Specifically, the stops can be connected to the side of the support rubber position 13 facing the opening. Since the stops have a certain length, when the circular baffle contacts the stops, the circular stops are a certain distance away from the support rubber position 13, which is the length of the stops. The limiting protrusion is located on the side of the circular baffle facing the inlet of the roller, and the circular baffle and the limiting protrusion are separated by a certain distance, which is the same as the length of the stops. When the circular baffle contacts the stops, the limiting protrusion connects precisely with the limiting groove. If the roller brush shaft 20 is inserted into the roller in the reverse direction, when the circular baffle cannot connect with the stops, the circular stops will be blocked by the support rubber position 13. At this time, the limiting protrusion just passes over the limiting groove and cannot connect with the limiting groove. When the roller brush shaft 20 rotates, it cannot drive the roller to rotate.

[0122] Furthermore, to facilitate the entry of the limiting protrusion into the limiting groove and to indicate the assembly direction of the roller brush shaft 20, a guide slope is provided on the limiting protrusion. The guide slope gradually decreases along the assembly direction of the roller brush shaft 20, forming an arrow structure towards the inlet direction. The guide slope facilitates the entry of the limiting protrusion into the limiting groove and also serves to indicate the assembly direction.

[0123] In this embodiment of the invention, the roller brush shaft 20 can be directly connected to the drive mechanism, driving the roller to rotate under the drive of the drive mechanism. Alternatively, the roller brush shaft 20 can also be connected to the drive mechanism via an intermediate connector. The intermediate connector includes a drive bracket 30 and a rotating bracket 40, wherein the drive bracket 30 is connected to the drive mechanism and outputs driving force to the roller brush shaft 20. The rotating bracket 40 provides support for the roller brush shaft 20 when it rotates.

[0124] For details, see Figure 1 and Figure 2 In one feasible embodiment of the invention, the roller brush assembly further includes a drive bracket 30 and a rotating bracket 40. See also Figures 14 to 17 One end of the roller brush shaft 20 is provided with a drive groove 23, and the other end is provided with a rotation groove 24. The drive bracket 30 is connected to the roller and the drive groove 23 respectively. The rotation bracket 40 is connected to the roller and the rotation groove 24 respectively. After the drive bracket 30 and the rotation bracket 40 are connected to the rotation groove 24 respectively, they are also used to cover the openings at both ends of the roller and prevent relative movement between the roller and the roller brush shaft 20, and avoid misalignment between the first limiting part 12 and the second limiting part 21.

[0125] In one embodiment of the present invention, the drive bracket 30 can be implemented as follows: (See...) Figure 18As shown in Figure 21, the drive bracket 30 includes a first end cap 31, a first connecting cylinder 32, and a drive rod 33. The first connecting cylinder 32 is disposed on the first end cap 31. The drive rod 33 is located inside the first connecting cylinder 32, connected to the first end cap 31, and extends through the first end cap 31 in a direction away from the first connecting cylinder 32. A first gap exists between the drive rod 33 and the first connecting cylinder 32.

[0126] See Figure 12 The drive bracket 30 is connected to the roller and brush shaft 20 as follows: the first connecting cylinder 32 is sleeved inside the roller, the drive rod 33 is sleeved inside the drive groove 23, and the groove wall of the drive groove 23 is fitted into the first gap. When the drive bracket 30 rotates, it drives the brush shaft 20 to rotate via the drive rod 33. The first connecting cylinder 32 can be interference-fitted with the roller, and the opening of the roller can be sealed by the first end cap 31. See also Figure 16 and Figure 18 To achieve the driving connection between the drive rod 33 and the drive slot 23, the drive rod 33 and the drive slot 23 can be set as matching rectangles, triangles, polygons and crosses, etc.

[0127] Furthermore, to improve the connection strength between the drive bracket 30 and the roller brush shaft 20, corresponding limiting structures can be provided on the drive rod 33 and the drive groove 23, and corresponding limiting structures and foolproof structures can also be provided on the first connecting cylinder 32 and the roller brush shaft 20. For example, the limiting structure on the drive rod 33 can be a protrusion distributed on the outer wall of the drive rod 33, the limiting structure on the first connecting cylinder 32 can be a protrusion strip distributed on the inner wall of the first connecting cylinder 32, and the foolproof structure can be a trapezoidal groove on the first connecting cylinder 32.

[0128] In this embodiment of the invention, one possible implementation of the rotating bracket 40 is as follows: (See...) Figure 22 As shown in Figure 24, the rotating bracket 40 includes a fixed part 41, a rotating shaft 42, and a bearing component 43. The fixed part 41 is fixedly connected to both the roller and the rotating groove 24. The rotating shaft 42 is fixedly connected to the fixed part 41, and the bearing component 43 is connected to the rotating shaft 42. When the roller brush shaft 20 rotates, it drives the fixed part 41 to rotate. The fixed part 41 is fixedly connected to the rotating shaft 42, and when the fixed part 41 rotates, it drives the rotating shaft 42 to rotate. The bearing component 43 includes a rotor 431 and a bearing seat 432. The rotor 431 can rotate relative to the bearing seat 432. The rotor 431 is fixedly connected to the rotating shaft 42, and the bearing seat 432 is fixed to an external component to provide support for the roller brush shaft 20.

[0129] See also Figures 22 to 24One possible implementation of the fixing part 41 is that it includes a second end cap 411, a second connecting cylinder 412, and a connecting post 413. The second connecting cylinder 412 is disposed on the second end cap 411. The connecting post 413 is located inside the second connecting cylinder 412 and connected to the second end cap 411, with a second gap between the connecting post 413 and the second connecting cylinder 412. A receiving groove is provided inside the connecting post 413, and the opening 111 of the receiving groove is located on the second end cap 411. One end of the rotating shaft 42 extends into the receiving groove and is fixedly connected to the connecting post 413, while the other end is located outside the receiving groove.

[0130] See Figure 12 The rotating bracket 40 is connected to the roller and brush shaft 20 by means that the bearing 43 is sleeved on one end of the rotating shaft 42 located in the receiving groove. Specifically, the bearing 43 is sleeved on the rotating shaft 42 via the rotor 431. The second connecting cylinder 412 is sleeved inside the roller, and the connecting column 413 is sleeved inside the rotating groove 24, with the groove wall of the rotating groove 24 fitting into the second gap. The second connecting cylinder 412 can be interference-fitted with the roller, and the opening of the roller can be sealed by the second end cap 411.

[0131] See Figure 17 and Figure 24 To achieve the connection between the rotating groove 24 and the connecting column 413, so that the rotating groove 24 can drive the connecting column 413 to rotate, the rotating groove 24 and the connecting column 413 can be configured as matching rectangles, triangles, polygons, crosses, etc. Furthermore, to improve the connection strength between the rotating bracket 40 and the brush shaft 20, corresponding matching limiting structures can be provided on the connecting column 413 and the rotating groove 24. Matching limiting structures and foolproof structures are also provided on the second connecting cylinder 412 and the brush shaft 20. For example, the limiting structure on the connecting column 413 can be protrusions distributed on the outer wall of the connecting column 413, the limiting structure on the second connecting cylinder 412 can be protrusions distributed on the inner wall of the second connecting cylinder 412, and the foolproof structure can be a protrusion on the second connecting cylinder 412.

[0132] See Figure 25 In this embodiment of the invention, the rotor 431 of the bearing component 43 can be made of a metal material, such as copper or stainless steel. To further secure the rotor 431, a rotor clip 433 is provided on the second end cover 411, which enhances the connection strength between the rotor 431 and the second end cover 411.

[0133] Example 2

[0134] Based on Example 1, combined with Figure 1 See Figure 2 The present invention also provides a roller brush assembly, including: a roller.

[0135] The roller has a soft rubber brush 11 on its outer wall. The soft rubber brush 11 has a zigzag structure, and a groove 111 is located on the first side of the zigzag structure. Along the direction from one end of the roller to the middle of the zigzag structure, the groove 111 divides the first side into a first segment 112 and a second segment 113. A transition rubber column 114 is provided within the groove 111, connecting to both the first segment 112 and the second segment 113. The transition rubber column 114 within the groove 111 ensures a more stable connection between the first segment 112 and the second segment 113, guaranteeing seamless contact between the soft rubber brush 11 and the ground.

[0136] Furthermore, the transition rubber column 114 is detachably connected to the roller. By changing the relative position of the transition rubber column 114 and the roller, the included angle between the first section 112 and the second section 113 can be adjusted. The included angle between sections AB and BC, and between sections CD and DF, can be adjusted through the transition rubber column 114 in the slot 111. By adjusting the included angle between the first section 112 and the second section 113, seamless contact between the soft rubber brush 11 and the ground can be further ensured, guaranteeing sealing and increasing the pressure difference.

[0137] Further, see Figure 8 and Figure 9 The transition rubber column 114 has a radial line parallel to the central axis of the roller. The angle between the first segment 112 and the radial line is different from the angle between the second segment 113 and the radial line. Specifically, the radial line of the transition rubber column 114 parallel to the central axis of the roller... Figure 9 The line shown by the dashed line. The central axis of the roller is parallel to the X-axis. Therefore, the radial line of the transition rubber column 114 is parallel to the X-axis. The angle between the first segment 112 and the radial line can refer to the angle between the first segment 112 and the X-axis, that is, the deflection angle of the first segment 112. The angle between the second segment 113 and the radial line can refer to the angle between the second segment 113 and the X-axis, that is, the deflection angle of the second segment 113.

[0138] The technical solutions described in Example 2 and the technical solutions described in Example 1 can be referenced and learned from each other, and will not be described in detail here.

[0139] Example 3

[0140] Accordingly, this embodiment of the invention also provides a self-moving robot, including: a host and a roller brush assembly disposed on the host. The roller brush assembly can be implemented by the roller brush assembly in embodiment 1 or embodiment 2. The corresponding features in embodiment 3 can be referenced to each other as in embodiment 1 and embodiment 2.

[0141] Specifically, embodiments of the present invention also provide a self-moving robot, including: a host and a roller brush assembly disposed on the host.

[0142] The roller brush assembly includes: a roller; a soft rubber brush 11 is provided on the outer wall of the roller, the soft rubber brush 11 has a zigzag structure, and a groove 111 is provided on the first side of the zigzag structure. Along one end of the roller to the middle of the zigzag structure, the groove 111 divides the first side into a first segment 112 and a second segment 113, and there is an included angle between the first segment 112 and the second segment 113.

[0143] The technical solution provided in this embodiment of the invention features a soft rubber brush 11 on the outer wall of the roller with a zigzag structure. A groove 111 is located on the first side of the zigzag structure, dividing the first side into a first segment 112 and a second segment 113, with an included angle between the first segment 112 and the second segment 113. The groove 111 deepens the bend in the middle of the zigzag structure without affecting the angles at both ends, which helps increase the pressure difference in the middle section of the soft rubber brush 11, thus concentrating dust collection. Simultaneously, it reduces the angles of the two sides of the soft rubber brush 11, ensuring the strength of both ends of the soft rubber brush 11 while also making the airflow smoother and more gentle. During the rotation of the roller brush assembly, external debris and dust can continuously accumulate in the dust collection area in the middle of the soft rubber brush 11, effectively improving dust collection capacity.

[0144] It should be noted that in this embodiment of the invention, the main unit of the self-moving robot can be a main unit of a self-moving robot in the prior art, including but not limited to the main unit of a sweeping robot, vacuum cleaner, cleaning machine, etc. An achievable self-moving robot main unit includes a chassis and a top cover. The top cover is detachably mounted on the chassis to protect the various functional components inside the self-moving robot from damage by violent impacts or accidental liquid spills during use. The chassis is used to carry and support various functional components, such as a suction mechanism and a roller brush assembly. The bottom of the chassis has a suction port, and the suction mechanism is configured to create negative pressure during operation to suck dirt near the suction port into the waste-receiving cavity inside the machine.

[0145] The roller brush assembly is mounted on the chassis and is detachably installed laterally, roughly perpendicular to the robot's forward direction. As the robot moves forward to clean, it picks up debris from the ground, which is then sucked into a collection device. To ensure thorough cleaning, the suction port is typically located at the rear of the roller brush assembly.

[0146] The technical solutions described in Example 3 can be referenced and learned from the technical solutions described in Example 1 and Example 2, and will not be described in detail here.

[0147] The technical solution adopted by this invention will be described below in conjunction with specific application scenarios to aid understanding. In the application scenarios below, a self-moving robot is used as an example: a robotic vacuum cleaner.

[0148] Application Scenario 1

[0149] A roller brush assembly is located at the bottom of the robot vacuum cleaner. The roller brush assembly includes a roller, and a soft rubber brush is provided on the outer wall of the roller. The soft rubber brush has a zigzag structure with an included angle of approximately 165°. A groove is provided on the first side of the zigzag structure, which divides the first side into a first segment and a second segment. The first segment and the second segment have different deflection angles. The deflection angle of the first segment is approximately 6°, and the deflection angle of the second segment is approximately 8°.

[0150] When in use, the air intake channel between the two soft rubber brushes is divided into three sections, each relatively short, effectively reducing the impact of airflow resistance. Simultaneously, after the air intake channel is segmented by two slots, the airflow velocity from the external environment entering the dust collection area transitions from slow to fast. This difference in airflow velocity creates a pressure differential zone at the two slots, making it easier to entrain external dust. Therefore, the two slots become "secondary dust collection zones," providing auxiliary support to the "primary dust collection zone" in the middle section. Combined with the characteristic of the fan assembly's suction radiation zone being "stronger in the middle and weaker on both sides," the two slots further enhance dust collection capacity.

[0151] Application Scenario 2

[0152] A roller brush assembly is located at the bottom of the robot vacuum cleaner. The roller brush assembly includes a roller, and a soft rubber brush is provided on the outer wall of the roller. The soft rubber brush has a zigzag structure with an included angle of approximately 165°. A groove is provided on the first side of the zigzag structure, which divides the first side into a first segment and a second segment. The first segment and the second segment have different deflection angles. The deflection angle of the first segment is approximately 6°, and the deflection angle of the second segment is approximately 8°.

[0153] The soft rubber brush has two slots, which increases the pressure gradient of the air intake channel between the two brushes, making the airflow more uniform and reducing noise. The two pressure gradients allow the air pressure to increase gradually during the air intake process, reducing the adverse effects of sudden increases in air pressure, making the airflow more uniform, effectively reducing the consequences of airflow turbulence caused by different air pressure (or large pressure difference changes), and effectively reducing noise.

[0154] Application Scenario 3

[0155] A roller brush assembly is located at the bottom of the robot vacuum cleaner. The roller brush assembly includes a roller, and a soft rubber brush is provided on the outer wall of the roller. The soft rubber brush has a zigzag structure with an included angle of approximately 165°. Grooves are provided on the sides of the zigzag structure, and the grooves divide the first side into a first segment and a second segment. The first segment and the second segment have different deflection angles. The deflection angle of the first segment is approximately 6°, and the deflection angle of the second segment is approximately 8°.

[0156] Along the direction from one end of the roller to the middle of the roller, the height of the first section relative to the roller gradually decreases. When the roller rolls in the direction of rotation, the part of the soft rubber brush near the end of the roller can contact the ground first, and then the contact position gradually extends to the middle of the soft rubber brush. This ensures that dust is not left unscraped due to gaps between the soft rubber brush and the ground. At the same time, it can create a temporary sealing effect between the soft rubber brush and the ground, reducing the loss of wind pressure, and the dust can be more easily driven into the dust box by the fan.

[0157] Application Scenario 4

[0158] A roller brush assembly is located at the bottom of the robot vacuum cleaner. The roller brush assembly includes a roller, and a soft rubber brush is provided on the outer wall of the roller. The soft rubber brush has a zigzag structure with an included angle of approximately 165°. Grooves are provided on the sides of the zigzag structure, and the grooves divide the first side into a first segment and a second segment. The first segment and the second segment have different deflection angles. The deflection angle of the first segment is approximately 6°, and the deflection angle of the second segment is approximately 8°.

[0159] The multiple soft rubber brushes include several first soft rubber brushes and several second soft rubber brushes spaced apart. The height of the first soft rubber brushes is greater than the height of the second soft rubber brushes relative to the roller. The multiple soft rubber brushes are arranged in an alternating height pattern. During rotation, the taller soft rubber brushes scrape the floor (or carpet), stirring up dust, while the shorter soft rubber brushes, due to their lower height, create gaps between themselves and the ground, drawing in the stirred-up dust through these gaps. During rotation, the distance between two adjacent tall soft rubber brushes decreases, while the distance between the middle low soft rubber brush and one of the tall soft rubber brushes increases. This helps to stratify the airflow, reducing the turbulence caused by the mixing of high and low airflow within the duct and lowering noise.

[0160] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rolling brush assembly, characterized by, include: Roller; among which, The outer wall of the roller is provided with a soft rubber brush, which has a zigzag structure and a groove on the first side of the zigzag structure. Along one end of the roller to the middle of the zigzag structure, the slot divides the first side into a first segment and a second segment, with an included angle between the first segment and the second segment; A transition adhesive column is provided in the groove, and the transition adhesive column is connected to the first segment and the second segment respectively.

2. The roll brush assembly of claim 1, wherein, The transition rubber column is detachably connected to the roller. By changing the relative position of the transition rubber column and the roller, the included angle between the first segment and the second segment can be adjusted.

3. The roll brush assembly of claim 1, wherein, The transition rubber column has a radial line parallel to the central axis of the roller; The angle between the first segment and the radial line is different from the angle between the second segment and the radial line.

4. The roll brush assembly of claim 3, wherein, The angle between the first segment and the radial line is smaller than the angle between the second segment and the radial line.

5. The roll brush assembly of claim 1, wherein, The polygonal structure further includes a second side, and there is an angle between the first side and the second side, and the angle is not less than 160 degrees.

6. The roll brush assembly of claim 1, wherein, Along the direction from one end of the roller to the middle of the roller, the height of the first segment relative to the roller gradually decreases.

7. The roll brush assembly of claim 1, wherein, The tangent to the roller at the connection point between the soft rubber brush and the roller forms an angle with the soft rubber brush.

8. The roll brush assembly of claim 7, wherein, Along the rotation direction of the roller, the angle between the soft rubber brush and the tangent is an acute angle.

9. The roll brush assembly of claim 1, wherein, The soft rubber brush is a plurality of brushes, and the plurality of soft rubber brushes include a plurality of first soft rubber brushes and a plurality of second soft rubber brushes that are spaced apart. The height of the first soft rubber brush is greater than the height of the second soft rubber brush relative to the roller.

10. The roll brush assembly of claim 9, wherein, There is a ground contact width between two adjacent first soft rubber brushes, the ground contact width being such that at least one of the plurality of first soft rubber brushes is in contact with the ground.

11. The roll brush assembly of any one of claims 1 to 10, wherein, It also includes the brush roller shaft; A first limiting part is provided on the inner wall of the roller; The roller brush shaft has a second limiting part that cooperates with the first limiting part; The brush shaft extends into the drum, and the first limiting part is connected to the second limiting part so that the brush shaft drives the drum to rotate.

12. The roll brush assembly of claim 11, wherein, The inner wall of the roller is provided with a support rubber position, and the support rubber position is provided with a through hole; The first limiting part is a limiting groove provided on the through hole; The second limiting part is a limiting protrusion provided on the outer wall of the roller brush shaft.

13. The roll brush assembly of claim 12, wherein, The inner wall of the roller is also provided with a first anti-fooling part; The brush shaft has a second anti-mistake part that works in conjunction with the first anti-mistake part; When the first anti-mistake part and the second anti-mistake part are oriented together, the first limiting part and the second limiting part are connected.

14. The roll brush assembly of claim 13, wherein, The first anti-fooling part includes multiple stops, which are arranged in a ring around the inner wall of the roller; The second anti-foolproof part is a circular baffle, the outer diameter of which matches the inner diameter of the roller.

15. The roll brush assembly of claim 11, wherein, It also includes a drive bracket and a rotating bracket; One end of the roller brush shaft is provided with a drive groove, and the other end is provided with a rotation groove; The drive bracket is connected to the roller and the drive groove respectively; The rotating bracket is connected to the roller and the rotating groove respectively.

16. The roll brush assembly of claim 15, wherein, The driving support comprises a first end cover, a first connecting cylinder and a driving rod; The first connecting cylinder is arranged on the first end cover; The driving rod is located in the first connecting cylinder, connected with the first end cover and extends out of the first end cover away from the first connecting cylinder; the driving rod and the first connecting cylinder have a first gap therebetween; The first connecting cylinder is sleeved in the roller, the driving rod is sleeved in the driving groove, and the groove wall of the driving groove is sleeved in the first gap; when the driving support rotates, the driving rod drives the roller brush shaft to rotate.

17. The roll brush assembly of claim 15, wherein, The rotating support comprises a fixed part, a rotating shaft and a bearing piece; The fixed part is fixedly connected with the roller and the rotating groove respectively; The rotating shaft is fixedly connected with the fixed part; The bearing piece is connected with the rotating shaft; When the roller brush shaft rotates, the fixed part is driven to rotate.

18. The roll brush assembly of claim 17, wherein, The fixed part comprises a second end cover, a second connecting cylinder and a connecting column; The second connecting cylinder is arranged on the second end cover; The connecting column is located in the second connecting cylinder, connected with the second end cover, and has a second gap therebetween; the connecting column is provided with a containing groove, and the groove opening of the containing groove is located on the second end cover; One end of the rotating shaft extends into the containing groove and is fixedly connected with the connecting column, and the other end is located outside the containing groove; The bearing piece is sleeved on the one end of the rotating shaft located in the containing groove; The second connecting cylinder is sleeved in the roller, and the connecting column is sleeved in the rotating groove, and the groove wall of the rotating groove is sleeved in the second gap.

19. A self-moving robot, characterized in that It comprises: A host and a roller brush assembly arranged on the host; wherein The roller brush assembly comprises a roller; a soft rubber brush is arranged on the outer wall of the roller, the soft rubber brush has a fold line type structure, and the first side of the fold line type structure has a groove opening; In the direction from one end of the roller to the middle part of the fold line type structure, the groove opening separates the first side where it is located into a first section and a second section, and the first section and the second section have an included angle therebetween; The groove opening is provided with a transition rubber column, and the transition rubber column is connected with the first section and the second section respectively.

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