Floor brush assembly and dust collector with same

Abstract

The invention discloses a floor brush assembly and a dust collector with the floor brush assembly, and the floor brush assembly comprises a shell which is provided with a rolling brush cavity; the first rolling brush extends left and right and is arranged in the rolling brush cavity; the second rolling brush extends left and right and is arranged in the rolling brush cavity, the second rolling brush is arranged on the front side of the first rolling brush, the outer diameter of the second rolling brush is smaller than that of the first rolling brush, and the ratio of the outer diameter of the second rolling brush to the outer diameter of the first rolling brush is 0.2-1. According to the floor brush assembly, the dust collector can have long endurance during use, and the floor brush assembly can more effectively and conveniently clean wall corners and other cleaning blind areas, so that the cleaning and dust removing efficiency is well improved, and a user can more conveniently clean and remove dust.

Description

Technical Field

[0001] The invention relates to the technical field of household appliances, and in particular to a floor brush assembly and a vacuum cleaner having the same. Background Art

[0002] A clean and tidy living environment is not only the trend of the times, but also the life demand of modern people. In order to maintain a good, clean and tidy living environment, people often need to clean and sweep regularly. Using appropriate cleaning tools can often make cleaning work more convenient and make people clean more easily. Nowadays, many families are equipped with vacuum cleaners. Users can use vacuum cleaners to easily clean dirt and dust on the ground. However, when users clean corners, there are large blind spots in the corners. Users need to adjust the cleaning direction or angle of the vacuum cleaner to clean the corners, which makes the efficiency of users using vacuum cleaners low. Summary of the invention

[0003] The present invention is based on the findings of the inventors of the present application regarding the following facts and problems:

[0004] Currently, the roller brush at the front end of the floor brush in the vacuum cleaner has a large diameter, which will result in a large blind spot when cleaning corners. The user needs to change the cleaning direction to clean the blind spot, which reduces the cleaning efficiency.

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention is to provide a floor brush assembly, which can reduce the cleaning blind area and improve the cleaning efficiency of the user.

[0006] The present invention also provides a vacuum cleaner having the floor brush assembly.

[0007] According to the first aspect of the present invention, the floor brush assembly includes: a shell having a roller brush cavity; a first roller brush, the first roller brush extending left and right and disposed in the roller brush cavity; a second roller brush, the second roller brush extending left and right and disposed in the roller brush cavity, wherein the second roller brush is arranged on the front side of the first roller brush, and the outer diameter of the second roller brush is smaller than the outer diameter of the first roller brush, and the ratio between the outer diameter of the second roller brush and the outer diameter of the first roller brush is 0.2-1.

[0008] According to the floor brush assembly of the present invention, a first roller brush and a second roller brush are arranged, the second roller brush is located on the front side of the first roller brush, the outer diameter of the second roller brush is smaller than the outer diameter of the first roller brush, and the ratio between the outer diameter of the second roller brush and the outer diameter of the first roller brush is 0.2-1, so that the vacuum cleaner can have a longer battery life when in use, and the floor brush assembly can more effectively and conveniently clean blind spots such as corners, thereby greatly improving the efficiency of cleaning and dust removal, making it more convenient for users to clean and remove dust.

[0009] In addition, the floor brush assembly according to the present invention may also have the following additional technical features:

[0010] In some embodiments of the present invention, the ratio of the outer diameter of the second roller brush to the outer diameter of the first roller brush is greater than or equal to 0.2 and less than 0.3; or, the ratio of the outer diameter of the second roller brush to the outer diameter of the first roller brush is greater than 0.8 and less than 1.

[0011] In some embodiments of the present invention, the outer diameter of the second roller brush ranges from 16 mm to 34 mm.

[0012] In some embodiments of the present invention, the outer diameter of the second roller brush ranges from 16 mm to 20 mm.

[0013] In some embodiments of the present invention, the floor brush assembly also includes: a driving motor, a first transmission mechanism and a second transmission mechanism, the driving motor is connected to the first roller brush through the first transmission mechanism for driving the first roller brush to rotate, and the first roller brush is connected to the second roller brush through the second transmission mechanism for driving the second roller brush to rotate.

[0014] In one embodiment of the present invention, the second transmission mechanism includes: an input gear, which is coaxially fixed with the first roller brush; an output gear, which is coaxially fixed with the second roller brush; at least one gear set, which is transmission-arranged between the input gear and the output gear and includes a large gear and a small gear that are coaxially fixed, the large gear is meshed with the input gear, and the small gear is transmission-connected to the output gear.

[0015] In some examples of the present invention, the second transmission mechanism also includes: a transmission gear, which is arranged between the gear set and the output gear, and the transmission gear includes a first gear and a second gear fixed coaxially, the diameter of the first gear is larger than the diameter of the second gear, the first gear is meshed with the large gear of the gear set arranged adjacently, and the second gear is meshed with the output gear.

[0016] In some examples of the present invention, an outer diameter of the output gear is smaller than an outer diameter of the second roller brush.

[0017] In some examples of the present invention, the reduction ratio of the second transmission mechanism is 2-3.

[0018] In one embodiment of the present invention, the first transmission mechanism is a belt.

[0019] In some embodiments of the present invention, the rotation direction of the first roller brush is the same as the rotation direction of the second roller brush.

[0020] In some embodiments of the present invention, the second roller brush comprises: a second roller body and a velvet layer, the second roller body is a metal part, and the velvet layer is coated on the outer peripheral surface of the second roller body.

[0021] In some embodiments of the present invention, the first roller brush includes a first roller body and implanted hair, wherein the implanted hair is fixed on the first roller body and extends outwardly in a radial direction of the first roller body.

[0022] In one embodiment of the present invention, the implanted hairs are arranged along a spiral line on the outer circumferential surface of the first roller body.

[0023] A vacuum cleaner according to a second aspect of the present invention comprises the floor brush assembly according to the first aspect of the present invention.

[0024] According to the vacuum cleaner of the present invention, by setting the floor brush assembly of the first aspect mentioned above, the floor brush assembly is provided with a first roller brush and a second roller brush, the second roller brush is located on the front side of the first roller brush, the outer diameter of the second roller brush is smaller than the outer diameter of the first roller brush, and the ratio between the outer diameter of the second roller brush and the outer diameter of the first roller brush is 0.2-1, so that the vacuum cleaner can have a longer battery life when in use, and the floor brush assembly can more effectively and conveniently clean blind spots such as corners, thereby greatly improving the efficiency of cleaning and dust removal, making it more convenient for users to clean and remove dust.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of a floor brush assembly according to an embodiment of the present invention;

[0027] Figure 2 is an exploded view of a floor brush assembly according to an embodiment of the present invention;

[0028] Figure 3 is a schematic diagram of an outer shell and a second transmission mechanism according to an embodiment of the present invention;

[0029] Figure 4 is a schematic diagram of a second transmission mechanism according to an embodiment of the present invention;

[0030] Figure 5 is a schematic diagram of the second transmission mechanism according to another angle of the embodiment of the present invention.

[0031] Reference numerals:

[0032] 10. Shell; 11. Upper shell; 12. Lower shell; 13. Outer shell; 101. Installation cavity; 102. First roller brush cavity; 103. Second roller brush cavity;

[0033] 20. Suction pipe; 30. Roller; 40. Drive motor; 50. First transmission mechanism;

[0034] 60. Second transmission mechanism; 61. Input gear; 62. Gear set; 63. Transmission gear; 64. Output gear;

[0035] 70. The first roller brush; 71. The first roller body; 72. Hair transplantation;

[0036] 80. second roller brush; 81. second roller body; 82. velvet layer;

[0037] 100. Floor brush assembly. DETAILED DESCRIPTION

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

[0039] First reference Figure 1-Figure 5 A vacuum cleaner according to an embodiment of the second aspect of the present invention is briefly described. The vacuum cleaner includes a floor brush assembly 100. The floor brush assembly 100 is used to capture debris particles such as dust and hair on the floor.

[0040] Reference below Figure 1-Figure 5 A floor brush assembly 100 according to an embodiment of a first aspect of the present invention is described.

[0041] like Figure 1 and Figure 2 As shown, the floor brush assembly 100 according to the first embodiment of the present invention comprises: a housing 10, a first roller brush 70 and a second roller brush 80. The housing 10 has a roller brush cavity; the first roller brush 70 extends left and right and is arranged in the roller brush cavity; the second roller brush 80 extends left and right and is arranged in the roller brush cavity, wherein the second roller brush 80 is arranged in front of the first roller brush 70, and the outer diameter of the second roller brush 80 is smaller than the outer diameter of the first roller brush 70, and the ratio between the outer diameter of the second roller brush 80 and the outer diameter of the first roller brush 70 is 0.2-1.

[0042] The first roller brush 70 extends left and right. Specifically, the axial direction of the first roller brush 70 extends in the left and right direction. When in use, the first roller brush 70 can rotate around the axis following the movement of the floor brush assembly 100 in the front-to-back direction, thereby cleaning the dust and impurities in the forward direction. The second roller brush 80 extends left and right, so that the second roller brush 80 and the first roller brush 70 are in a parallel arrangement position relationship, thereby avoiding interference with the first roller brush 70 during the rotation of the second roller brush 80, so that the first roller brush 70 and the second roller brush 80 can operate more stably.

[0043] When a user uses a vacuum cleaner for cleaning, the user pushes the floor brush assembly 100 to move on the ground. During the movement, the second roller brush 80 is located in front of the first roller brush 70 on the moving path, and the first roller brush 70 and the second roller brush 80 work together to clean the ground.

[0044] In this embodiment, the second roller brush 80 and the first roller brush 70 arranged front and back are provided in the floor brush assembly 100, so that when the user is cleaning, the first roller brush 70 and the second roller brush 80 can perform cleaning operations together. After the second roller brush 80 has cleaned, the first roller brush 70 can perform a second cleaning of the floor area cleaned by the second roller brush 80, thereby avoiding omissions during cleaning by the floor brush assembly 100, making cleaning more thorough and effective, and thus achieving a better cleaning effect of the floor brush assembly 100.

[0045] It is understandable that due to the different materials of the ground, the difficulty of cleaning is also different. For example, when the ground is paved with floorboards, the dust and hair on the floor are easier to clean. When the ground is covered with carpets, the dust and hair on the floor are easy to hide in the carpets, which are more difficult to clean. Therefore, different types of roller brushes are required for different types of ground to achieve a good cleaning effect. In this embodiment, a first roller brush 70 and a second roller brush 80 are provided. The first roller brush 70 and the second roller brush 80 can adopt different types of roller brushes to adapt to and meet different types of ground cleaning needs. Users do not need to disassemble, assemble and replace the roller brushes during use, which is more convenient to use.

[0046] In the present embodiment, the outer diameter of the second roller brush 80 is set to be smaller than the outer diameter of the first roller brush 70. When the floor brush assembly 100 is in use, the second roller brush 80 with a smaller outer diameter has a smaller rotational torque, thereby making the load torque of the second roller brush 80 smaller, and thus making the load power required for the operation of the floor brush assembly 100 lower, which can make the vacuum cleaner have a longer endurance to a certain extent.

[0047] It is understandable that there are many structures or facilities such as walls and furniture in the room, and the walls, furniture, etc. form a certain angle with the ground. When the user cleans the corners, etc., it is difficult for the second roller brush 80 to reach the position where the wall is connected to the ground or the position where the furniture is in contact with the ground due to the obstruction of the wall, etc., thus forming a cleaning blind spot. The user is required to adjust the direction of the floor brush assembly 100 for cleaning in order to clean the cleaning blind spot.

[0048] In the present embodiment, the outer diameter of the second roller brush 80 is set to be smaller, so that the position where the second roller brush 80 contacts the ground can be closer to the corner, so that the floor brush assembly 100 has a smaller cleaning blind spot when cleaning the corner and other positions. In this way, during actual cleaning, after the floor brush assembly 100 cleans the corner, the dust and other debris particles in the corner can be cleaned more thoroughly, and the user does not need to adjust the direction of the floor brush assembly 100 to repeatedly clean the corner, thereby greatly improving the efficiency of cleaning and dust removal.

[0049] In this embodiment, the ratio of the outer diameters of the second roller brush to the first roller brush is limited to between 0.2 and 1. Specifically, the ratio of the outer diameters of the second roller brush to the first roller brush is greater than or equal to 0.2 and less than 1. For example, the ratio of the outer diameter of the second roller brush to the outer diameter of the first roller brush can be 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, etc.

[0050] It is understandable that the dust, hair and other debris particles that need to be cleaned and dusted are of different sizes. When the floor brush assembly 100 cleans and captures them, the first roller brush 70 and the second roller brush 80 need to have a sufficient outer diameter so that the floor brush assembly 100 can reliably and effectively capture and clean some larger debris particles. In this embodiment, the ratio between the outer diameter of the second roller brush 80 and the outer diameter of the first roller brush 70 is limited to 0.2-1, so that the first roller brush 70 has a sufficient outer diameter to meet the needs of dust removal and cleaning of larger debris particles, and the second roller brush 80 can still perform good cleaning and dust removal, so that the first roller brush 70 and the second roller brush 80 can cooperate to perform good cleaning and dust removal, so that the dust removal effect of the floor brush assembly 100 remains good.

[0051] This embodiment limits the ratio of the outer diameter of the second roller brush 80 to the outer diameter of the first roller brush 70. In this way, when the outer diameters of the first roller brush 70 and the second roller brush 80 meet the cleaning requirements, the outer diameter size of the first roller brush 70 can be conveniently determined based on the ratio and the outer diameter of the second roller brush 80, thereby making the first roller brush 70 and the second roller brush 80 more convenient to design and manufacture.

[0052] According to the floor brush assembly 100 of the embodiment of the present invention, by setting the first roller brush 70 and the second roller brush 80, the second roller brush 80 is located on the front side of the first roller brush 70, the outer diameter of the second roller brush 80 is smaller than the outer diameter of the first roller brush 70, and the ratio of the outer diameter of the second roller brush 80 to the outer diameter of the first roller brush 70 is 0.2-1, so that the vacuum cleaner can have a longer battery life when in use, and the floor brush assembly 100 can more effectively and conveniently clean blind spots such as corners, thereby greatly improving the efficiency of cleaning and dust removal, making it more convenient for users to clean and remove dust.

[0053] In some embodiments of the present invention, the ratio of the outer diameter of the second roller brush 80 to the outer diameter of the first roller brush may be greater than or equal to 0.2 and less than 0.3.

[0054] In this embodiment, the ratio between the outer diameter of the second roller brush 80 and the outer diameter of the first roller brush 70 is further limited to between 0.2 and 0.3, so that the outer diameter of the second roller brush 80 has a large difference with the outer diameter of the first roller brush 70. When the outer diameter of the first roller brush 70 meets the cleaning needs, the outer diameter of the second roller brush 80 can be set to be smaller, so that the second roller brush 80 is more convenient and easier to clean corners and other locations. The second roller brush 80 has a smaller load during operation, so that the floor brush assembly 100 has better endurance during operation.

[0055] For example, the ratio of the outer diameter of the second roller brush 80 to the outer diameter of the first roller brush 70 can be 0.2, 0.21, 0.22, 0.23, 0.24, 0.25, 0.26, 0.27, 0.28, 0.29, etc. The ratio of the outer diameter of the second roller brush 80 to the outer diameter of the first roller brush 70 can be set according to the actual cleaning effect and cleaning needs, and is not specifically limited here.

[0056] In some embodiments of the present invention, the ratio of the outer diameter of the second roller brush 80 to the outer diameter of the first roller brush 70 may be greater than 0.8 and less than 1. In this embodiment, the ratio of the outer diameter of the second roller brush 80 to the outer diameter of the first roller brush 70 is limited to between 0.8 and 1, so that the outer diameter of the first roller brush 70 and the outer diameter of the second roller brush 80 can have a small difference, so that when the second roller brush 80 has a better cleaning effect and cleaning efficiency when cleaning corners and other locations, the first roller brush 70 and the second roller brush 80 can have a larger outer diameter, so that when the floor brush assembly 100 cleans some areas with larger dust and debris, it can more reliably and effectively clean the dust and debris, so that the floor brush assembly 100 can more reliably meet the cleaning needs in daily life. For example, the ratio of the outer diameter of the second roller brush 80 to the outer diameter of the first roller brush 70 may be 0.82, 0.84, 0.86, 0.88, 0.9, 0.92, 0.94, 0.96, 0.98, and so on.

[0057] In some embodiments of the present invention, the outer diameter of the second roller brush 80 may range from 16 mm to 34 mm.

[0058] In this embodiment, the outer diameter of the second roller brush 80 is set to a value range of 16mm-34mm, and the outer diameter of the second roller brush 80 can be limited to a smaller size range, so that when the floor brush assembly 100 cleans the corners and other areas, the second roller brush 80 can be more effectively close to the corners or corners in the area to clean, reliably reduce the cleaning blind area, so that the floor brush assembly 100 can perform cleaning operations more conveniently and improve the efficiency of the floor brush assembly 100 during cleaning. For example, the outer diameter of the second roller brush 80 can be 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm, 34mm, etc.

[0059] In some embodiments of the present invention, the outer diameter of the second roller brush 80 may range from 16 mm to 20 mm.

[0060] For example, the outer diameter of the second roller brush 80 can be 16mm, 17mm, 18mm, 19mm or 20mm, etc. The present embodiment further limits the value range of the outer diameter of the second roller brush 80, so that the outer diameter of the second roller brush 80 is within a smaller size range, so that the floor brush assembly 100 has a smaller cleaning blind spot when cleaning areas such as corners, thereby allowing users to clean and remove dust more conveniently and thoroughly when using a vacuum cleaner, making users more efficient when cleaning.

[0061] In one embodiment of the present invention, Figure 2 As shown, the roller brush chamber may include: a first roller brush chamber 102 and a second roller brush chamber 103, the first roller brush chamber 102 and the second roller brush chamber 103 are arranged in a front-to-back spacing, the first roller brush 70 is disposed in the first roller brush chamber 102, and the second roller brush 80 is disposed in the second roller brush chamber 103.

[0062] The first roller brush 70 and the second roller brush 80 are respectively arranged in the first roller brush chamber 102 and the second roller brush chamber 103, so that the first roller brush 70 and the second roller brush 80 are in relatively independent operating spaces, so that when the second roller brush 80 cleans dust and debris, the dust and debris entering the second roller brush chamber 103 can be collected and stored more stably by the floor brush assembly 100, thereby reducing the repeated cleaning and collection of dust and debris cleaned and collected by the second roller brush 80 by the first roller brush 70, so that when the floor brush assembly 100 is in the cleaning operation, the first roller brush 70 and the second roller brush 80 can better cooperate in the cleaning operation, so that the floor brush assembly 100 has a good cleaning effect.

[0063] Of course, only one roller brush chamber may be provided, and the first roller brush 70 and the second roller brush 80 may be arranged at intervals in the roller brush chamber. This can simplify the structure of the roller brush chamber and make the arrangement of the first roller brush 70 and the second roller brush 80 more convenient and compact, thereby reducing the volume of the floor brush assembly 100 to a certain extent, making the floor brush assembly 100 more flexible and convenient when used.

[0064] In some embodiments of the present invention, Figure 2 As shown, the floor brush assembly 100 may also include: a driving motor 40, a first transmission mechanism 50 and a second transmission mechanism 60, the driving motor 40 is connected to the first roller brush 70 through the first transmission mechanism 50 for driving the first roller brush 70 to rotate, and the first roller brush 70 is connected to the second roller brush 80 through the second transmission mechanism 60 for driving the second roller brush 80 to rotate.

[0065] In this embodiment, a first transmission mechanism 50 and a second transmission mechanism 60 are set, and a driving motor 40 is used to drive the first roller brush 70 to rotate through the first transmission mechanism 50. The first roller brush 70 then drives the second roller brush 80 to rotate through the second transmission mechanism 60. The transmission connection is simple and the transmission is convenient. The driving motor 40 is used to drive the first roller brush 70 and the second roller brush 80, which can reduce the number of driving motors 40 used and facilitate the arrangement of the driving motor 40 and the first roller brush 70, the second roller brush 80 and the first transmission mechanism 50 and the second transmission mechanism 60. To a certain extent, the overall structure of the floor brush assembly 100 can be made more compact, thereby making the floor brush assembly 100 more flexible and convenient when used.

[0066] In one embodiment of the present invention, reference Figure 2 As shown, the first transmission mechanism 50 and the second transmission mechanism 60 can be arranged on the same side of the housing 10 or on the left and right sides of the housing 10. Arranging the first transmission mechanism 50 and the second transmission mechanism 60 on the same side can make the transmission connection between the drive motor 40 and the first roller brush 70 and the second roller brush 80 more compact and efficient, and convenient for installation and arrangement. Arranging the first transmission mechanism 50 and the second transmission mechanism 60 on the left and right sides of the housing 10 can make the transmission connection between the drive motor 40 and the first roller brush 70 and the second roller brush 80 bracket more stable in the axial direction of the first roller brush 70 and the second roller brush 80, so that the floor brush assembly 100 has better stability and reliability during operation.

[0067] In one embodiment of the present invention, Figure 3-Figure 5As shown, the second transmission mechanism 60 may include: an input gear 61, an output gear 64 and at least one gear set 62, the input gear 61 is coaxially fixed with the first roller brush 70; the output gear 64 is coaxially fixed with the second roller brush 80; the gear set 62 is transmission-disposed between the input gear 61 and the output gear 64 and includes a large gear and a small gear coaxially fixed, the large gear is meshed with the input gear 61, and the small gear is transmission-connected with the output gear 64.

[0068] When the floor brush assembly 100 is in operation, the input gear 61 rotates following the rotation of the first roller brush 70, and then meshes with the large gear in the gear set 62 for transmission. The small gear in the gear set 62 rotates following the large gear, thereby driving the output gear 64 to rotate, and then rotating the second roller brush 80. In this embodiment, the second transmission mechanism 60 uses a gear meshing transmission method to connect the first roller brush 70 with the second roller brush 80. The gear transmission has good stability and high transmission efficiency. It can stably and reliably transmit power to the second roller brush 80 with a smaller outer diameter, making the second roller brush 80 more stable and reliable to use. The gear transmission can make the first roller brush 70 and the second roller brush 80 arranged more compactly, so that to a certain extent, the overall structure of the floor brush assembly 100 can be set more compact, making the floor brush assembly 100 more flexible and convenient when in use.

[0069] In this embodiment, the second transmission mechanism 60 is set as a deceleration mechanism, so that the rotation speed of the second roller brush 80 can be reduced after the transmission connection of the second transmission mechanism 60, which can reduce the power required for the second roller brush 80 during operation, so that when the floor brush assembly 100 is in use, the load power of the driving motor 40 is smaller, thereby having a longer battery life and lower cost of use.

[0070] The gear set 62 is provided with at least one, that is, the gear set 62 can be provided with one, or the gear set 62 can be provided with multiple, for example, the gear set 62 can be provided with one, two, three, four, etc. The number of the gear sets 62 can be reasonably set according to the installation and reduction transmission requirements. Preferably, the gear set 62 is provided with two.

[0071] It should be noted that the gear set 62 in this embodiment may include a large gear and a small gear, and the gear set 62 may also be provided with only a large gear as required, for example, Figure 4 As shown, in the transmission direction of the second transmission mechanism 60, the gear set 62 at the most downstream has only a large gear participating in the meshing transmission, so the gear set 62 at the most downstream can only be provided with a large gear for transmission connection. The transmission direction here refers to the direction in which the second transmission mechanism 60 transmits from the input gear 61 to the output gear 64.

[0072] In some examples of the present invention, Figure 4 and Figure 5As shown, the second transmission mechanism 60 may further include: a transmission gear 63, which is arranged between the gear set 62 and the output gear 64, and the transmission gear 63 includes a first gear and a second gear fixed coaxially, the diameter of the first gear is larger than the diameter of the second gear, the first gear is meshed with the large gear of the adjacently arranged gear set 62, and the second gear is meshed with the output gear 64.

[0073] It can be understood that the second transmission mechanism 60 is a deceleration mechanism. In the transmission direction of the second transmission mechanism 60, a transmission connection relationship in which a small gear meshes with a large gear is required to achieve the deceleration effect. That is to say, the diameter of the gear downstream in the transmission direction needs to be smaller than the diameter of the upstream gear that meshes with it. In this way, in the transmission direction of the second transmission structure, the diameter of the most downstream gear is larger.

[0074] In this embodiment, a transmission gear 63 is arranged between the gear set 62 and the output gear 64, and the transmission gear 63 is provided with a first gear and a second gear arranged coaxially, the first gear is larger than the second gear, the first gear is meshed with the large gear of the gear set 62, and the second gear is meshed with the output gear 64, the diameter of the first gear can be the same as the diameter of the large gear of the gear set 62 or larger than the diameter of the large gear, so that the rotation speed of the transmission gear 63 is synchronized with the rotation speed of the gear set 62 or the rotation speed is reduced, the diameter of the second gear can be the same as the diameter of the output gear 64 or smaller than the diameter of the output gear 64, so that the rotation speed of the output gear 64 is the same as the rotation speed of the transmission gear 63 or the rotation speed is reduced, thereby, the transmission gear 63 can be stably connected to the output gear 64 and the gear set 62 according to actual transmission and deceleration needs, so as to better meet the operation needs of the second roller brush 80, and the assembly and arrangement of the first roller brush 70 and the second roller brush 80 are more convenient while maintaining the deceleration effect on the output gear 64.

[0075] In some examples of the present invention, reference Figure 2 and Figure 4 As shown, the outer diameter of the output gear 64 can be smaller than the outer diameter of the second roller brush 80. In this way, after the output gear 64 and the second roller brush 80 are assembled in the housing 10, the housing 10 structure at the output gear 64 will not exceed the boundary of the second roller brush 80, thereby better avoiding the situation where the housing 10 structure touches the wall first during cleaning, etc., causing the cleaning blind area to become larger, so that the second roller brush 80 can better participate in the cleaning and dust removal operation, making it more convenient and quick for users to clean and remove dust.

[0076] In some examples of the present invention, the reduction ratio of the second transmission mechanism 60 can be 2-3. In this way, the rotation speed of the second roller brush 80 can be well reduced, thereby effectively reducing the load torque of the second roller brush 80 during operation, and then well reducing the load power of the drive motor 40, so that the endurance of the floor brush assembly 100 is increased, and the second roller brush 80 has a sufficient rotation speed to perform a good cleaning operation, so that the second roller brush 80 and the first roller brush 70 can cooperate to perform more efficient and stable cleaning and dust removal. For example, the reduction ratio of the second transmission mechanism 60 can be 2, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, etc.

[0077] In one embodiment of the present invention, the first transmission mechanism 50 may be a belt, which makes it more convenient and flexible to install the drive motor 40 and the first roller brush 70. The drive motor 40 and the first roller brush 70 are connected by belt transmission, and the transmission is stable, flexible and reliable.

[0078] In some embodiments of the present invention, the rotation direction of the first roller brush 70 may be the same as the rotation direction of the second roller brush 80. In this way, the first roller brush 70 and the second roller brush 80 can cooperate well to perform cleaning and dust removal operations.

[0079] In some embodiments of the present invention, Figure 2 As shown, the second roller brush 80 may include: a second roller body 81 and a fleece layer 82 . The second roller body 81 is a metal piece, and the fleece layer 82 is coated on the outer circumferential surface of the second roller body 81 .

[0080] In this embodiment, the second roller body 81 is set as a metal part, so that the structural strength of the second roller body 81 is better, so that the second roller brush 80 is not easily deformed during operation, and the second roller brush 80 operates stably and reliably. The velvet layer 82 coated on the second roller body 81 can have a relatively good sealing effect on the front side of the housing 10, so that the vacuum cleaner forms a good vacuum suction environment in the housing 10, so that the floor brush assembly 100 can effectively suck out dust and other particles and debris after sweeping them into the housing 10, so that the floor brush assembly 100 has a good cleaning and dust removal effect.

[0081] In this embodiment, the second roller brush 80 is configured such that a velvet layer 82 covers the second roller body 81 . The velvet layer 82 can capture larger debris, so that the floor brush assembly 100 can perform better cleaning when in use.

[0082] In one embodiment of the present invention, reference Figure 1As shown, the velvet layer 82 can partially extend beyond the front surface of the housing 10. In this way, when the floor brush assembly 100 is cleaning some debris and impurities with a large height, the velvet layer 82 can have a larger contact surface with the debris and impurities, so that the velvet layer 82 can more reliably and effectively remove the debris particles, and when cleaning corners and other locations, the velvet layer 82 of the second roller brush 80 can abut against the vertical structure such as the wall, thereby reliably reducing the cleaning blind area of ​​the floor brush assembly 100 when cleaning corners and other locations, making the cleaning of the floor brush assembly 100 more convenient.

[0083] In some embodiments of the present invention, Figure 2 As shown, the first roller brush 70 may include a first roller body 71 and implanted hairs 72 , wherein the implanted hairs 72 are fixed to the first roller body 71 and extend outwardly in the radial direction of the first roller body 71 .

[0084] In this embodiment, the first roller brush 70 is provided with a first roller body 71 and implanted hairs 72 arranged radially along the first roller body 71 and fixed on the outer peripheral surface of the first roller body 71. It can more effectively clean and remove dust from some floors that are difficult to clean, such as carpets. The first roller brush 70 has a simple structure and a good cleaning effect, which is convenient for improving the cleaning and dust removal efficiency of the floor brush assembly 100.

[0085] In one embodiment of the present invention, Figure 2 As shown, the implanted hairs 72 may be arranged along a spiral line on the outer circumference of the first roller body 71 .

[0086] Arranging the implanted hairs 72 along a spiral line on the outer peripheral surface of the first roller body 71 can reduce the number of implanted hairs 72 on the first roller brush 70 that are in contact with the ground at the same time when the first roller brush 70 is running for cleaning, thereby reducing the cleaning resistance to a certain extent and making it easier for the first roller brush 70 to clean. The spirally arranged implanted hairs 72 on the first roller brush 70 can cooperate with the first roller body 71 on the first roller brush 70 to form a spiral channel, which can facilitate the first roller brush 70 to push debris and particles into the formed spiral channel through the rotation of the implanted hairs 72 during rotation and clean them more conveniently and reliably into the first roller brush cavity 102 along the spiral channel, so that the first roller brush 70 has a better cleaning effect.

[0087] In some embodiments of the present invention, Figure 1 and Figure 2As shown, the floor brush assembly 100 may further include: a suction pipe 20, which is arranged at the rear side of the housing 10 and communicated with the first roller brush chamber 102 and the second roller brush chamber 103 of the housing 10. In this embodiment, the suction pipe 20 communicated with the first roller brush chamber 102 and the second roller brush chamber 103 is provided, so that the dust, hair and other debris particles captured and collected in the first roller brush chamber 102 and the second roller brush chamber 103 can be sucked away in time through the suction pipe 20 when the vacuum cleaner is running, so that the floor brush assembly 100 can continuously and stably clean and remove dust.

[0088] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the floor brush assembly 100 may further include: two rollers 30, which are rotatably fixed at intervals along the left and right directions on the rear side of the housing 10. This facilitates the movement of the floor brush assembly 100, so that when the floor brush assembly 100 is in operation, the user can push the floor brush assembly 100 to conveniently move the floor brush assembly 100 to various positions for cleaning and dust removal.

[0089] In some embodiments of the present invention, Figure 2 As shown, the housing 10 may include: an upper housing 11 and a lower housing 12, the upper housing 11 and the lower housing 12 cooperate to form a first roller brush chamber 102, a second roller brush chamber 103 and an installation chamber 101, and the drive motor 40 and the first transmission mechanism 50 are installed and fixed in the installation chamber 101. In this way, the drive motor 40 and the first transmission mechanism 50 can be in a relatively independent operating environment, so that they can operate more stably and reliably, making the floor brush assembly 100 more stable and reliable during long-term use. In this embodiment, the upper housing 11 and the lower housing 12 are provided, which makes it easier to assemble the first roller brush 70, the second roller brush 80 and other components in the floor brush assembly 100 with the housing 10.

[0090] In one embodiment of the present invention, Figure 2 As shown, the housing 10 may further include an outer housing 13, and the outer housing 13 cooperates with the upper housing 11 and the lower housing 12 to define a receiving cavity, and the second transmission mechanism 60 is installed and fixed in the receiving cavity. In this way, the second transmission mechanism 60 can have a good operating space, reduce the impact of the external environment on the transmission of the second transmission mechanism 60, and make the second transmission mechanism 60 operate more stably and reliably, thereby making the floor brush assembly 100 more reliable and stable in use.

[0091] Reference below Figure 1-Figure 5 A vacuum cleaner according to an embodiment of the second aspect of the present invention will be described.

[0092] like Figure 1-Figure 5 As shown, the vacuum cleaner according to the embodiment of the present invention includes the floor brush assembly 100 according to the embodiment of the first aspect of the present invention.

[0093] Other structures and operations of the vacuum cleaner according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0094] According to the vacuum cleaner of the embodiment of the present invention, by setting the floor brush assembly 100 of the above-mentioned first embodiment, the floor brush assembly 100 is provided with a first roller brush 70 and a second roller brush 80, the second roller brush 80 is located on the front side of the first roller brush 70, the outer diameter of the second roller brush 80 is smaller than the outer diameter of the first roller brush 70, and the ratio between the outer diameter of the second roller brush 80 and the outer diameter of the first roller brush 70 is 0.2-1, so that the vacuum cleaner can have a longer battery life when in use, and the floor brush assembly 100 can clean blind spots such as corners more effectively and conveniently, thereby greatly improving the efficiency of cleaning and dust removal, making it more convenient for users to clean and remove dust.

[0095] The following will refer to Figure 1-Figure 5 A vacuum cleaner according to a specific embodiment of the present invention is described.

[0096] like Figure 1-Figure 5 As shown, the vacuum cleaner includes a floor brush assembly 100 , which includes a housing 10 , a suction pipe 20 , a roller 30 , a drive motor 40 , a first transmission mechanism 50 , a first roller brush 70 , a second transmission mechanism 60 and a second roller brush 80 .

[0097] The shell 10 includes an upper shell 11, a lower shell 12 and an outer shell 13. The upper shell 11 and the lower shell 12 cooperate to form a first roller brush chamber 102, a second roller brush chamber 103 and an installation chamber 101. The outer shell 13 cooperates with the upper shell 11 and the lower shell 12 to define a accommodating chamber; the suction pipe 20 is fixed to the rear side of the shell 10 and is connected to the first roller brush chamber 102 and the second roller brush chamber 103. Two rollers 30 are provided. The two rollers 30 are arranged at intervals on the left and right and are rotatably fixed to the rear side of the shell 10; the drive motor 40 is installed in the installation chamber 101, the first roller brush 70 is installed and arranged in the second roller brush chamber 102, and the second roller brush 80 is installed and arranged in the second roller brush chamber 103. The second roller brush 80 is located in front of the first roller brush 70 and is arranged side by side with the first roller brush 70 in the front-to-back direction.

[0098] The driving motor 40 is located at the rear side of the first roller brush 70 and is connected to the first roller brush 70 through the first transmission mechanism 50; the first transmission mechanism 50 is a belt and is installed in the installation cavity 101; the first roller brush 70 includes a first roller body 71 and implanted hair 72, the implanted hair 72 is fixed on the first roller body 71, and the implanted hair 72 is spirally arranged along the outer peripheral surface of the first roller body 71 in the axial direction of the first roller body 71; the second transmission mechanism 60 is arranged in the accommodating cavity and is connected to the first roller brush 70 and the second roller brush 80.

[0099] The second transmission mechanism 60 includes an input gear 61, a gear set 62, a transmission gear 63 and an output gear 64. The input gear 61 is coaxially fixed with the first roller brush 70. There are two gear sets 62. The gear set 62 is provided with a coaxially fixed large gear and a small gear. The input gear 61 is meshed with the large gear. The coaxially fixed small gear is meshed with the large gear of another gear set 62. The transmission gear 63 is provided with a coaxially fixed first gear and a second gear. The first gear is meshed with the large gear of the adjacent gear set 62. The second gear is meshed with the output gear 64. The diameter of the first gear is larger than that of the second gear. The output gear 64 is coaxially fixed with the second roller brush 80. The outer diameter of the output gear 64 is smaller than the outer diameter of the second roller brush 80. The first transmission mechanism 50 and the second transmission mechanism 60 are respectively located on the left and right sides of the housing 10. The second roller brush 80 includes a second roller body 81 and a velvet layer 82. The second roller body 81 is a metal material.

[0100] In the vacuum cleaner according to the embodiment of the present invention, a first roller brush 70 and a second roller brush 80 are arranged in the floor brush assembly 100. The second roller brush 80 is located in front of the first roller brush 70. The outer diameter of the second roller brush 80 is smaller than the outer diameter of the first roller brush 70. The ratio of the outer diameter of the second roller brush 80 to the outer diameter of the first roller brush 70 is 0.2-1, so that the vacuum cleaner can have a longer battery life when in use. The floor brush assembly 100 can clean blind spots such as corners more effectively and conveniently, thereby greatly improving the efficiency of cleaning and dust removal, making it more convenient for users to clean and remove dust.

[0101] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0102] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0103] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0104] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0105] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A floor brush assembly, characterized in that: include: A housing having a roller brush cavity; A first rolling brush, the first rolling brush extending left and right and disposed in the rolling brush cavity; A second roller brush, the second roller brush extends left and right and is disposed in the roller brush cavity, wherein the second roller brush is arranged in front of the first roller brush, and the outer diameter of the second roller brush is smaller than the outer diameter of the first roller brush, and the ratio between the outer diameter of the second roller brush and the outer diameter of the first roller brush is 0.2-1.

2. The floor brush assembly according to claim 1, characterized in that: The ratio of the outer diameter of the second roller brush to the outer diameter of the first roller brush is greater than or equal to 0.2 and less than 0.3; or, A ratio of an outer diameter of the second roller brush to an outer diameter of the first roller brush is greater than 0.8 and less than 1.

3. The floor brush assembly according to claim 1, characterized in that: The outer diameter of the second roller brush ranges from 16 mm to 34 mm.

4. The floor brush assembly according to claim 3, characterized in that: The outer diameter of the second roller brush ranges from 16 mm to 20 mm.

5. The floor brush assembly according to claim 1, characterized in that: Also includes: A driving motor, a first transmission mechanism and a second transmission mechanism, wherein the driving motor is connected to the first roller brush via the first transmission mechanism for driving the first roller brush to rotate, and the first roller brush is connected to the second roller brush via the second transmission mechanism for driving the second roller brush to rotate.

6. The floor brush assembly according to claim 5, characterized in that: The second transmission mechanism comprises: An input gear, the input gear is coaxially fixed with the first roller brush; An output gear, the output gear is coaxially fixed with the second roller brush; At least one gear set is transmission-disposed between the input gear and the output gear and comprises a large gear and a small gear fixed coaxially, the large gear is meshed with the input gear, and the small gear is transmission-connected with the output gear.

7. The floor brush assembly according to claim 6, characterized in that: The second transmission mechanism also includes: a transmission gear, which is arranged between the gear set and the output gear, and includes a first gear and a second gear fixed coaxially, the diameter of the first gear is larger than the diameter of the second gear, the first gear is meshed with the large gear of the gear set arranged adjacently, and the second gear is meshed with the output gear.

8. The floor brush assembly according to claim 6, characterized in that: The outer diameter of the output gear is smaller than the outer diameter of the second roller brush.

9. The floor brush assembly according to claim 6, characterized in that: The reduction ratio of the second transmission mechanism is 2-3.

10. The floor brush assembly according to claim 5, characterized in that: The first transmission mechanism is a belt.

11. The floor brush assembly according to any one of claims 1 to 10, characterized in that: The rotation direction of the first roller brush is the same as the rotation direction of the second roller brush.

12. The floor brush assembly according to claim 1, characterized in that: The second roller brush comprises: a second roller body and a velvet layer, the second roller body is a metal part, and the velvet layer is coated on the outer peripheral surface of the second roller body.

13. The floor brush assembly according to claim 1, characterized in that: The first roller brush includes a first roller body and implanted hairs, wherein the implanted hairs are fixed on the first roller body and extend outwardly in the radial direction of the first roller body.

14. The floor brush assembly according to claim 13, characterized in that: The implanted hairs are arranged along a spiral line on the outer circumferential surface of the first roller body.

15. A vacuum cleaner, characterized in that: Comprising a floor brush assembly according to any one of claims 1-14.

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