A brush disc structure of a sweeper

Abstract

The utility model belongs to the field of sweeper brush disc, especially relate to a brush disc structure of sweeper. The utility model provides a brush disc structure of sweeper, including sweeper body and brush disc subassembly, the brush disc subassembly is installed on the sweeper body, is used for sweeping ground, the brush disc subassembly includes: connecting column, the bottom of connecting column is equipped with the brush disc, a plurality of annular grooves, a plurality of annular grooves are equidistantly opened in the radial direction of brush disc on the side of brush disc away from connecting column, and the diameter of each annular groove decreases gradually from the outside to the inside of brush disc, through the detachable connection of connecting ring and annular groove, when local cleaning brush wears, only need to replace corresponding connecting ring, do not need to replace entire brush disc, reduce maintenance cost and reduce material waste, at the same time, can replace the cleaning brush of the hardness of adaptation according to different ground material, improve the cleaning adaptability of various scenes.

Description

Technical Field

[0001] This utility model belongs to the field of sweeper brushes, and particularly relates to a sweeper brush structure. Background Technology

[0002] When the sweeper is moving, the brush disc at the front of the sweeper rotates, and the bristles on the brush disc come into contact with the ground, sweeping up the debris on the ground. Then, the roller brush at the rear of the sweeper sweeps the debris into the debris collection box on the sweeper.

[0003] Existing patent CN211066424U discloses a brush disc structure for a sweeper, including a rotating body with an internal cavity, a bristle connecting plate slidably disposed within the cavity, an elastic element disposed within the cavity to provide an upward elastic force to the bristle connecting plate, bristles disposed at the bottom of the bristle connecting plate, and an airbag; the bottom of the rotating body has an opening communicating with the cavity; the bristles extend movably through the opening to the bottom of the rotating body; the airbag is disposed between the inner top wall of the cavity and the bristle connecting plate; the upper part of the airbag abuts against the inner top wall of the cavity; the lower part of the airbag abuts against the bristle connecting plate; the airbag has an air nozzle; the air nozzle extends upward and protrudes to the top of the rotating body. The vertical height of the bristles in this invention's brush disc structure is adjustable. When not in use, the bristles can be raised to a certain height to avoid contact and friction with the ground, effectively extending the service life of the bristles. However, the existing robot vacuums use a fixed brush structure, with the bristles fixedly connected to the brush body or molded as a single piece. When the bristles in a part of the brush are worn, the entire brush needs to be replaced, which not only increases maintenance costs but also wastes materials. At the same time, the fixed bristle hardness cannot be adjusted according to the cleaning needs of different floor materials such as wood flooring, tiles, and carpets, making it difficult to achieve the cleaning effect for various scenarios and resulting in poor adaptability. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned technical problems by providing a brush disc structure for a sweeper. Through the detachable connection between the connecting ring and the annular groove, when the cleaning brush wears down in a certain area, only the corresponding connecting ring needs to be replaced, without replacing the entire brush disc. This reduces maintenance costs and material waste. At the same time, cleaning brushes with appropriate hardness can be replaced according to different floor materials, improving the cleaning adaptability to various scenarios.

[0005] In view of this, the present invention provides a brush disc structure for a sweeper, including a sweeper body and a brush disc assembly. The brush disc assembly is mounted on the sweeper body and is used for sweeping the floor. The brush disc assembly includes:

[0006] A connecting post, the bottom end of which is equipped with a brush plate;

[0007] A plurality of annular grooves are provided, which are equidistantly provided on the side of the brush disk away from the connecting post along the radial direction of the brush disk, and the diameter of each annular groove decreases sequentially from the outside to the inside of the brush disk.

[0008] A plurality of connecting rings are embedded in each annular groove in a corresponding manner, and a cleaning brush is fixedly connected to the bottom end of each of the connecting rings.

[0009] A plurality of first fixing bolts are provided, each of which passes through a corresponding connecting ring and is threaded to the bottom of the corresponding annular groove, so as to achieve detachable fixing of the connecting ring and the annular groove.

[0010] In this technical solution, the detachable connection between the connecting ring and the annular groove means that when the cleaning brush wears down in a certain area, only the corresponding connecting ring needs to be replaced, without having to replace the entire brush disc. This reduces maintenance costs and material waste. At the same time, cleaning brushes with appropriate hardness can be replaced according to different floor materials, improving the cleaning adaptability to various scenarios.

[0011] Furthermore, the disk brush assembly also includes:

[0012] A cylinder, wherein the connecting post penetrates the bottom end of the inner cavity of the cylinder, and the center of the cylinder is concentric with the center of the connecting post;

[0013] A limiting plate is fixed to the end of the connecting column away from the brush plate. The limiting plate is slidably connected inside the cylinder, and the external dimensions of the limiting plate are adapted to the internal dimensions of the cylinder.

[0014] A sealing plate is provided at the top opening of the cylinder, and a second fixing bolt passes through the sealing plate and is threadedly connected to the top surface of the cylinder.

[0015] In this technical solution, the combination of the cylinder, the limiting plate and the sealing plate enables convenient disassembly and assembly of the brush assembly and the sweeper body, further improving the convenience of maintenance operations.

[0016] Furthermore, the centers of several of the annular grooves are concentric with the center of the connecting column.

[0017] In this technical solution, the symmetrical distribution of each annular groove and connecting ring is ensured, so that the brush plate is subjected to uniform cleaning force and the stability of the cleaning effect is improved.

[0018] Furthermore, the cleaning brushes on several of the connecting rings are all inclined in a direction away from the center of the brush disk.

[0019] In this technical solution, the inclined cleaning brush can guide the swept dirt to the outside of the brush disc and gather it, making it easier to collect later and improving cleaning efficiency.

[0020] Furthermore, a third fixing bolt passes through the bottom end of the brush disk, and the third fixing bolt is threadedly connected to the bottom end surface of the connecting column.

[0021] In this technical solution, the brush disc and the connecting post are detachably connected by a third fixing bolt. When the brush disc body is damaged, the brush disc can be replaced separately without replacing the entire connecting structure, which further reduces maintenance costs and improves the flexibility of component replacement.

[0022] Furthermore, a plurality of springs are installed on the top of the limiting plate, and the plurality of springs are distributed in a circular and equidistant manner.

[0023] In this technical solution, the elasticity of the spring provides a buffer for the brush disc, allowing the brush disc to better adapt to ground undulations, reducing hard impacts on the ground, while ensuring the cleaning brush fits the ground well, thus improving the cleaning effect on different terrains.

[0024] Furthermore, the inner wall of the cylinder is symmetrically provided with limiting grooves, and the two ends of the limiting plate are symmetrically fixedly connected with limiting blocks, and the two limiting blocks are slidably connected in the limiting grooves respectively, with one end of each of the two limiting grooves extending to the surface of the cylinder.

[0025] In this technical solution, the sliding fit between the limiting block and the limiting groove restricts the rotation of the limiting disk inside the cylinder, ensuring the stability of the connecting column and brush disk during operation, avoiding the impact of offset on the cleaning effect, and improving the reliability of the structure operation.

[0026] The beneficial effects of this utility model are:

[0027] 1. This utility model uses a detachable connection between the connecting ring and the annular groove. When the cleaning brush wears down in a certain area, only the corresponding connecting ring needs to be replaced, without replacing the entire brush disc. This reduces maintenance costs and material waste. At the same time, cleaning brushes with appropriate hardness can be replaced according to different floor materials, improving the cleaning adaptability to various scenarios.

[0028] 2. This utility model uses the elasticity of the spring to provide cushioning for the brush disc, allowing the brush disc to better adapt to ground undulations, reducing hard impacts on the ground, while ensuring the cleaning brush fits the ground well, thus improving the cleaning effect on different terrains. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the connection structure between the sweeper body and the brush assembly of this utility model;

[0030] Figure 2 This is a schematic diagram of the brush assembly structure of this utility model;

[0031] Figure 3 This is a cross-sectional view of the brush assembly of this utility model;

[0032] Figure 4 This is a schematic diagram of the connection structure between the connecting column and the cylinder of this utility model;

[0033] Figure 5 This is a schematic diagram of the connecting ring and annular groove structure of this utility model.

[0034] Figure 6 This is a schematic diagram of the connection structure between the connecting ring and the cleaning brush of this utility model.

[0035] In the diagram: 1. Cylinder; 11. Sealing plate; 12. Second fixing bolt; 2. Connecting post; 21. Brush plate; 22. Connecting ring; 23. First fixing bolt; 24. Cleaning brush; 25. Annular groove; 26. Third fixing bolt; 3. Spring; 4. Limiting plate; 41. Limiting block; 42. Limiting groove. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0037] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0038] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0039] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0040] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0041] Example 1:

[0042] like Figure 1-6As shown, this utility model provides a brush disc structure for a sweeper, including a sweeper body and a brush disc 21 assembly. The brush disc 21 assembly is mounted on the sweeper body and is used to sweep the ground. The brush disc 21 assembly includes: a connecting post 2, the bottom end of which is equipped with the brush disc 21; a plurality of annular grooves 25, which are equidistantly opened along the radial direction of the brush disc 21 on the side of the brush disc 21 away from the connecting post 2, and the diameter of each annular groove 25 decreases sequentially from the outside to the inside of the brush disc 21; a plurality of connecting rings 22, which are correspondingly embedded in each annular groove 25, and the bottom end of each connecting ring 22 is fixedly connected to a cleaning brush 24; and a plurality of first fixing bolts 23, which pass through the corresponding connecting rings 22 and are threadedly connected to the bottom of the corresponding annular groove 25 to achieve detachable fixing of the connecting rings 22 and the annular grooves 25.

[0043] Through the detachable engagement of the connecting ring 22 and the annular groove 25, and the locking structure of the first fixing bolt 23, each connecting ring 22 and its cleaning brush 24 form an independent replaceable unit. When the cleaning brush 24 in a part of the brush disc 21 becomes worn, deformed, or damaged due to long-term use, it is not necessary to replace the entire brush disc 21 as in the existing integral fixed brush disc 21. Only the first fixing bolt 23 of the corresponding connecting ring 22 needs to be removed, and the connecting ring 22 in that area needs to be replaced. This significantly reduces the component costs required for maintenance and reduces the material waste caused by replacing the entire disc. At the same time, since each connecting ring 22 is independently detachable, the cleaning brush 24 can be replaced specifically according to the different requirements of brush hardness and density for different floor materials such as wood flooring, tiles, and carpets. This allows the brush disc 21 to flexibly adapt to the cleaning requirements of various scenarios, effectively solving the problem that existing fixed brushes cannot achieve the same cleaning effect on different floor materials, and significantly improving the scene adaptability and cleaning efficiency of the sweeper.

[0044] The brush plate 21 assembly further includes: a cylinder 1, wherein the connecting post 2 penetrates the bottom end of the inner cavity of the cylinder 1, and the center of the cylinder 1 is concentric with the center of the connecting post 2; a limiting plate 4, fixed at the end of the connecting post 2 away from the brush plate 21, the limiting plate 4 is slidably connected inside the cylinder 1, and the external dimensions of the limiting plate 4 are adapted to the internal dimensions of the cylinder 1; and a sealing plate 11, located at the top opening of the cylinder 1, wherein a second fixing bolt 12 penetrates the sealing plate 11, and the second fixing bolt 12 is threadedly connected to the top surface of the cylinder 1.

[0045] The cylinder 1, limiting plate 4, sealing plate 11, and second fixing bolt 12 work together to form a stable and convenient connection structure between the brush plate 21 assembly and the sweeper body. The sliding fit between the limiting plate 4 and the cylinder 1 ensures the installation and positioning accuracy of the connecting column 2 and the brush plate 21, avoiding assembly misalignment that affects the cleaning effect. The threaded connection between the sealing plate 11 and the second fixing bolt 12 enables quick disassembly and assembly of the entire brush plate 21 assembly. When it is necessary to perform overall maintenance on the brush plate 21 or replace multiple connecting rings 22, the entire brush plate 21 assembly can be removed from the sweeper body without complicated operations, significantly improving the convenience of maintenance operations.

[0046] The centers of several of the annular grooves 25 are concentric with the center of the connecting column 2.

[0047] By symmetrically distributing several annular grooves 25 around the center of the connecting column 2, it is ensured that the connecting rings 22 and cleaning brushes 24 in each annular groove 25 are arranged in concentric circles on the brush disc 21. This makes the cleaning brushes 24 in each area more evenly contact the ground during the rotating cleaning process of the brush disc 21, avoiding abnormal wear caused by excessive local force and extending the service life of the cleaning brushes 24.

[0048] The cleaning brushes 24 on the connecting rings 22 are all inclined in a direction away from the center of the brush disk 21.

[0049] When the brush disc 21 rotates, the brush can guide the dust, debris, hair and other dirt encountered during the cleaning process to the outside of the brush disc 21, which can prevent dirt from accumulating in the central area of ​​the brush disc 21 and prevent the cleaning efficiency of the brush from being affected by dirt entanglement or accumulation. At the same time, the dirt that gathers to the outside is more easily collected by the vacuuming device or dust collection structure of the sweeper, reducing the probability of dirt being scattered again and improving the thoroughness of dirt collection.

[0050] The bottom end of the brush plate 21 is provided with a third fixing bolt 26, and the third fixing bolt 26 is threadedly connected to the bottom end surface of the connecting post 2.

[0051] The brush disc 21 and the connecting post 2 are detachably connected by the third fixing bolt 26, making the brush disc 21 an independent replaceable part. When the brush disc 21 is damaged due to long-term use, such as deformation, cracks or wear of the annular groove 25, while the connecting post 2 remains intact, it is not necessary to replace the entire connection structure. Only the third fixing bolt 26 needs to be removed to replace the brush disc 21 separately, reducing replacement costs.

[0052] The top of the limiting plate 4 is equipped with multiple springs 3, and the multiple springs 3 are distributed in a circular and equidistant manner.

[0053] Multiple springs 3 at the bottom of the inner cavity of the cylinder 1 form an elastic support structure. When the brush disc 21 comes into contact with uneven ground or encounters bumps or depressions, the springs 3 can adjust the brush disc 21 adaptively through their own elastic expansion and contraction. This effectively reduces the hard impact of the brush disc 21 on the ground, making it especially suitable for easily damaged materials such as wooden floors, avoiding scratches or damage to the ground caused by rigid contact. At the same time, the elastic force of the springs 3 ensures that the cleaning brush 24 is always in close contact with the ground, maintaining stable cleaning pressure even on uneven ground, significantly improving adaptability to complex terrain, and ensuring stable cleaning results on various floor materials.

[0054] The inner wall of the cylinder 1 is symmetrically provided with limiting grooves 42, and the two ends of the limiting disk 4 are symmetrically fixedly connected with limiting blocks 41. The two limiting blocks 41 are slidably connected in the limiting grooves 42 respectively, and one end of the two limiting grooves 42 extends to the surface of the cylinder 1.

[0055] The sliding engagement of the limiting block 41 and the limiting groove 42 forms a precise guiding and limiting structure, which effectively restricts the circumferential rotation of the limiting disc 4 and the connecting column 2 within the cylinder 1. This ensures that the brush disc 21 maintains a stable trajectory during high-speed rotation cleaning, preventing deviations in the contact position between the cleaning brush 24 and the ground due to rotational offset, thus preventing over- or under-cleaning in certain areas. Simultaneously, the limiting groove 42 extending through the surface of the cylinder 1 facilitates the alignment of the limiting block 41 and the limiting groove 42, improving the installation efficiency of the brush disc 21 assembly. This structure further optimizes the cleaning effect from the perspective of motion stability.

[0056] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A brush disc structure for a sweeper, comprising a sweeper body and a brush disc assembly, wherein the brush disc assembly is mounted on the sweeper body and is used for sweeping the floor, characterized in that: The disk brushing component includes: A connecting post (2) is provided with a brush plate (21) at its bottom end; A plurality of annular grooves (25) are provided at equal intervals along the radial direction of the brush disk (21) on the side of the brush disk (21) away from the connecting post (2), and the diameter of each annular groove (25) decreases sequentially from the outside to the inside of the brush disk (21). A plurality of connecting rings (22) are embedded in each annular groove (25) in a corresponding manner, and a cleaning brush (24) is fixedly connected to the bottom end of each of the connecting rings (22); A plurality of first fixing bolts (23) are respectively inserted through the corresponding connecting rings (22) and threaded to the bottom of the corresponding annular grooves (25) to achieve detachable fixing of the connecting rings (22) and the annular grooves (25).

2. The brush disc structure of a sweeper according to claim 1, characterized in that, The disk brushing component also includes: A cylindrical cylinder (1) has a connecting column (2) that penetrates the bottom of the inner cavity of the cylindrical cylinder (1), and the center of the cylindrical cylinder (1) is concentric with the center of the connecting column (2). The limiting disk (4) is fixed at the end of the connecting column (2) away from the brush disk (21). The limiting disk (4) is slidably connected inside the cylinder (1), and the external dimensions of the limiting disk (4) are adapted to the internal dimensions of the cylinder (1). A sealing plate (11) is provided at the top opening of the cylinder (1). A second fixing bolt (12) passes through the sealing plate (11) and is threadedly connected to the top surface of the cylinder (1).

3. The brush disc structure of a sweeper according to claim 1, characterized in that, The center of several of the annular grooves (25) is concentric with the center of the connecting column (2).

4. The brush disc structure of a sweeper according to claim 1, characterized in that, The cleaning brushes (24) on several of the connecting rings (22) are all inclined in a direction away from the center of the brush disk (21).

5. The brush disc structure of a sweeper according to claim 1, characterized in that, The bottom end of the brush plate (21) is provided with a third fixing bolt (26), and the third fixing bolt (26) is threadedly connected to the bottom end surface of the connecting column (2).

6. The brush disc structure of a sweeper according to claim 2, characterized in that, The top of the limiting plate (4) is equipped with multiple springs (3), and the multiple springs (3) are distributed in a circular and equidistant manner.

7. The brush disc structure of a sweeper according to claim 2, characterized in that, The inner wall of the cylinder (1) is symmetrically provided with limiting grooves (42), and the two ends of the limiting disk (4) are symmetrically fixedly connected with limiting blocks (41), and the two limiting blocks (41) are slidably connected in the limiting grooves (42), and one end of the two limiting grooves (42) extends to the surface of the cylinder (1).

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