Floor brush capable of reducing operation noise and dust collector damage

Abstract

The utility model discloses a floor brush capable of reducing operation noise and dust collector damage, which comprises a floor brush main body, the front end of the floor brush main body is provided with a rolling brush cavity, the rear end of the floor brush main body is provided with a dust collection cavity communicated with the rolling brush cavity, and the floor brush main body is provided with at least one magnetic suction channel outside the rolling brush cavity; the rolling brush is driven to be rotationally arranged in the rolling brush cavity; the electromagnet assembly is rotationally arranged in the magnetic attraction channel and is in butt joint with the micro motor, the micro motor is associated with a controller in the floor brush body, and the side face of the magnetic attraction channel is provided with an avoiding notch in the rotating path of the electromagnet assembly; and the collecting box is located on the side face of the electromagnet assembly and assembled at the mounting opening in the bottom of the floor brush body, and the mounting opening communicates with the magnetic suction channel. The utility model can solve the problems that when the existing floor brush and dust collector are used, hard objects such as magnetic substances and the like are sucked into the dust collector to cause collision and friction between the hard objects and the inner wall of the dust collector, and large structural damage and operation noise are formed.

Description

Technical Field

[0001] This utility model relates to the field of floor brush technology, specifically a floor brush that can reduce operating noise and damage to vacuum cleaners. Background Technology

[0002] When a vacuum cleaner cleans surfaces, the strong suction at the bottom of the floor brush and the sweeping action of the roller brush can draw in hard objects such as magnetic materials. These hard objects, guided by airflow and their own inertia, collide and rub against the inner wall of the vacuum cleaner, resulting in loud noise and potentially serious damage. This reduces the vacuum cleaner's lifespan and user experience, causing significant inconvenience. Utility model patent CN106859492B discloses a floor brush assembly and a vacuum cleaner incorporating it. The floor brush assembly includes: a base with a suction port; a top cover on the base to define a cavity; an air duct component located within the cavity and communicating with the suction port, a sound-absorbing cavity between the outer peripheral wall of the air duct component and the inner peripheral wall of the top cover, an air inlet on the top cover connected to the sound-absorbing cavity, and multiple sound-absorbing holes on the peripheral wall of the air duct component communicating with the sound-absorbing cavity; and a switch component on the top cover to open or close the air inlet. According to this embodiment of the floor brush assembly, when the switch component opens the air inlet, outside air enters the air duct component through the air inlet, increasing the airflow and reducing the vacuum level of the air duct component, thus reducing the moving resistance of the floor brush assembly. Simultaneously, the sound-absorbing cavity and multiple sound-absorbing holes reduce the noise generated during airflow into the air duct component, achieving noise reduction. While the aforementioned prior art has improved the noise reduction of vacuum cleaners and floor brushes to some extent, it still suffers from the aforementioned defects. Utility Model Content

[0003] The purpose of this invention is to address the problem that existing floor brushes and vacuum cleaners, when cleaning surfaces, suck in hard objects such as magnetic materials. These hard objects, guided by airflow and their own inertia, collide and rub against the inner wall of the vacuum cleaner, causing loud noise and serious damage, thus reducing the lifespan and user experience. The invention provides a floor brush that reduces operating noise and vacuum cleaner damage.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a floor brush that can reduce operating noise and damage to vacuum cleaners, comprising:

[0005] The floor brush body has a roller brush cavity at its front end and a dust collection cavity connected to the roller brush cavity at its rear end. The floor brush body has at least one magnetic suction channel on the outside of the roller brush cavity.

[0006] A roller brush, which is driven to rotate and is disposed inside the roller brush cavity;

[0007] At least one electromagnet component is rotatably disposed within the magnetic channel and is connected to a micro motor, the micro motor being associated with a controller within the floor brush body. The side of the magnetic channel is provided with an avoidance notch on the rotation path of the electromagnet component.

[0008] At least one collection box is located on the side of the electromagnet assembly and is fitted at a mounting port at the bottom of the floor brush body, the mounting port communicating with the magnetic suction channel.

[0009] As a further description of the above technical solution:

[0010] The magnetic suction channel is connected to the rear air supply channel, and the end of the air supply channel away from the magnetic suction channel extends to the outside of the floor brush body, where a miniature fan is installed.

[0011] As a further description of the above technical solution:

[0012] The outer end of the air supply channel is provided with a tapered groove whose size gradually decreases from the outside to the inside. The filter screen is embedded in the tapered groove. A countersunk groove extends from the outside of the tapered groove. A flow cover is embedded in the countersunk groove and positioned by fasteners. The flow cover is tightly fitted to the outside of the filter screen and has mesh holes.

[0013] As a further description of the above technical solution:

[0014] The micro motor is positioned in the first mounting groove on the top surface of the magnetic channel, and the top of the electromagnet assembly extends into the first mounting groove. Both the first mounting groove and the clearance notch are cylindrical structures.

[0015] As a further description of the above technical solution:

[0016] The top edge of the electromagnet assembly is fitted with a first sealing ring, which is tightly fitted onto the inner wall of the outer end of the first mounting groove.

[0017] As a further description of the above technical solution:

[0018] The bottom of the electromagnet assembly extends into a second mounting groove on the bottom surface of the magnetic channel. The second mounting groove is a cylindrical structure in which a pressure sensor is installed. The sensing end of the pressure sensor abuts against the bottom of the electromagnet assembly.

[0019] As a further description of the above technical solution:

[0020] The bottom edge of the electromagnet assembly is fitted with a second sealing ring, which is tightly fitted onto the inner wall of the outer end of the second mounting groove.

[0021] As a further description of the above technical solution:

[0022] The electromagnet assembly has a connector on top, and a central socket is provided at the center of the upper surface of the connector. The drive shaft of the micro motor can be slidably inserted into the central socket relative to the axis. Several edge sockets radiate from the side of the central socket, and several limiting sliders on the side of the drive shaft are slidably connected to the corresponding edge sockets.

[0023] As a further description of the above technical solution:

[0024] The collecting box has a material guiding surface on the side facing the electromagnet assembly. The material guiding surface smoothly connects with the inner side of the mounting port and is wedge-shaped or arc-shaped.

[0025] As a further description of the above technical solution:

[0026] The side wall of the collection box is provided with several arc-shaped spring pieces, and the side wall of the mounting port is provided with snap-fit ​​slots that correspond to the arc-shaped spring pieces. The outer end of the collection box is provided with a decorative cover, which is attached to the bottom surface of the floor brush body and has a handle groove.

[0027] In summary, by adopting the above technical solution, this utility model has the following advantages over the prior art:

[0028] Beneficial effects:

[0029] 1. This utility model's floor brush, by arranging an electromagnet assembly within the magnetic attraction channel connecting the roller brush cavity, can magnetically absorb and collect magnetic materials. Since most of these objects are quite hard, they are trapped at the floor brush, preventing them from entering the dust collection chamber, the connection structure between the vacuum cleaner and the floor brush, or the vacuum cleaner itself, thus avoiding severe structural friction, impact damage, and corresponding operating noise. A micro-motor allows the electromagnet assembly to flip, moving the magnetically attracted material on one side to the inner side of the magnetic attraction channel, preventing further contamination. At this point, the electromagnet assembly can be briefly de-energized, the magnetic field disappears, and the magnetic material falls into the collection box, thus escaping the magnetic field's attraction range for stable collection. Meanwhile, the other side of the electromagnet assembly can continue magnetically absorbing and collecting materials, ensuring efficient and uninterrupted use.

[0030] 2. Considering the gap between the electromagnet assembly and the clearance notch, which connects the magnetic channel to the brush chamber and could lead to contamination of the magnetic channel's internal structure, an airflow is created from the magnetic channel towards the brush chamber during use to prevent dust and impurities from entering the magnetic channel. Specifically, during use, a miniature fan introduces purified outside air into the magnetic channel through the air supply channel, creating a high-pressure environment within the magnetic channel compared to the brush chamber. This creates an airflow from the magnetic channel towards the brush chamber, preventing dust and impurities from entering and contaminating the internal structure. This airflow also cleans the magnetic material adsorbed on the surface of the electromagnet assembly. The curved surface of the clearance notch accelerates the airflow, improving the cleanliness of the magnetic material and ensuring it is collected and temporarily stored in a clean state, thus enhancing overall cleanliness during use.

[0031] 3. To improve the intuitiveness of magnetic material collection and make it more intelligent and multifunctional, the electromagnet component is connected to a pressure sensor. During use, as more material is magnetically attracted to the electromagnet component, it moves downwards along the drive shaft and presses down on the pressure sensor. The sensor detects an increase in pressure, which is then fed back to the controller. The operating status is displayed on the vacuum cleaner or floor brush, allowing for timely manual control by the user when too much material is attracted, or automatic control by the controller when a set value is reached to redirect the electromagnet component to transfer the material into the collection box for collection. Meanwhile, the other side of the electromagnet component continues to magnetically attract and retain material, ensuring sufficient magnetic attraction performance and stable magnetic material collection capability. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of a floor brush that can reduce operating noise and damage to the vacuum cleaner.

[0034] Figure 2 This is a longitudinal cross-sectional view of a floor brush that can reduce operating noise and damage to the vacuum cleaner.

[0035] Figure 3 This is a partial transverse cross-sectional view of a floor brush that can reduce operating noise and damage to the vacuum cleaner.

[0036] Figure 4 for Figure 2 A magnified view of a portion of the image.

[0037] Legend:

[0038] 1. Main body of the floor brush; 2. Roller brush chamber; 3. Dust collection chamber; 4. Magnetic suction channel; 5. Roller brush; 6. Electromagnetic body assembly; 7. Micro motor; 8. Clearance notch; 9. Collection box; 10. Mounting port; 11. Air supply channel; 12. Micro fan; 13. Conical groove; 14. Filter screen; 15. Countersunk groove; 16. Flow cover plate; 17. First mounting groove; 18. First sealing ring; 19. Second mounting groove; 20. Pressure sensor; 21. Second sealing ring; 22. Connecting seat; 23. Central socket; 24. Drive shaft; 25. Edge socket; 26. Limiting slider; 27. Material guide surface; 28. Arc-shaped spring; 29. ​​Bayonet; 30. Decorative cover; 31. Handle groove. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0041] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0042] In the description of the embodiments of this utility model, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0043] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] Example 1:

[0045] Please see Figure 1 , 2 4. This utility model provides a technical solution: a floor brush that can reduce operating noise and damage to vacuum cleaners, comprising:

[0046] The floor brush body 1 has a roller brush cavity 2 at its front end and a dust collection cavity 3 connected to the roller brush cavity 2 at its rear end. The floor brush body 1 has at least one magnetic suction channel 4 on the outside of the roller brush cavity 2.

[0047] A roller brush 5 is driven to rotate and is disposed within the roller brush cavity 2;

[0048] At least one electromagnet component 6 is rotatably disposed within the magnetic channel 4 and is connected to a micro motor 7. The micro motor 7 is associated with a controller within the floor brush body 1. An avoidance notch 8 is provided on the side of the magnetic channel 4 along the rotation path of the electromagnet component 6. The rotational drive range of the micro motor 7 on the electromagnet component 6 is less than 360° to avoid the problem of tangling of the power supply wiring for the electromagnet component 6.

[0049] At least one collection box 9 is located on the side of the electromagnet assembly 6 and is fitted at the mounting port 10 at the bottom of the floor brush body 1, the mounting port 10 being connected to the magnetic suction channel 4.

[0050] This utility model's floor brush incorporates an electromagnet assembly within a magnetic channel connecting to the roller brush chamber. This assembly magnetically absorbs and collects magnetic materials. Since these materials are often quite hard, the floor brush traps them, preventing them from entering the dust collection chamber, the connection structure between the vacuum cleaner and the floor brush, or the vacuum cleaner itself, thus avoiding severe structural friction, impact damage, and associated operating noise. A micro-motor allows the electromagnet assembly to rotate, moving the magnetically attracted material to the inner side of the magnetic channel, preventing further contamination. A brief power cut to the electromagnet assembly eliminates the magnetic field, allowing the magnetic material to fall into the collection box. Now outside the magnetic field's absorption range, stable collection is achieved, while the other side of the electromagnet assembly continues magnetic absorption, ensuring efficient and uninterrupted use.

[0051] The micro motor 7 is positioned within the first mounting groove 17 on the top surface of the magnetic channel 4, and the top of the electromagnet assembly 6 extends into the first mounting groove 17. Both the first mounting groove 17 and the clearance notch 8 are cylindrical structures. When the electromagnet assembly 6 rotates, the magnetic material attracted to it can smoothly and without collision move through the clearance notch 8 to the inside of the magnetic channel 4, preventing the material from falling off during the transfer process.

[0052] The top edge of the electromagnet assembly 6 is fitted with a first sealing ring 18, which is tightly fitted onto the inner wall of the outer end of the first mounting groove 17. This isolates the magnetic attraction channel 4 from the first mounting groove 17, allowing the micro motor 7 to be placed in a clean environment, ensuring its neatness during use, and thus improving its service life.

[0053] The collection box 9 is provided with a guide surface 27 on the side facing the electromagnet assembly 6. The guide surface 27 smoothly connects with the inner side of the mounting port 10. It is wedge-shaped or arc-shaped to ensure that the magnetic material falling from the inside of the electromagnet assembly 6 is guided by the guide surface 27 and falls stably into the collection box 9, thereby making the collection of magnetic material more convenient and sufficient.

[0054] The collection box 9 has several arc-shaped spring pieces 28 on its side wall, and the mounting port 10 has corresponding snap-fit ​​slots 29 on its side wall. A decorative cover 30 is provided at the outer end of the collection box 9, and the decorative cover 30 is fitted onto the bottom surface of the floor brush body 1, with a handle groove 31 on it. This improves the ease of assembly and disassembly of the collection box 9, making the removal of magnetic materials simpler and less strenuous. The decorative cover 30 can conceal the collection box 9, improving the aesthetics of the bottom of the floor brush. In use, the handle groove 31 is engaged, and the decorative cover 30 is pulled outwards. The arc-shaped spring pieces 28 are pressed inwards and disengage from the snap-fit ​​slots 29. After removing the magnetic material, the decorative cover 30 is held, and the collection box 9 is pressed back into the mounting port 10. The arc-shaped spring pieces 28 engage with the snap-fit ​​slots 29, thus achieving the installation and positioning of the collection box 9.

[0055] The working principle of a floor brush in this embodiment that can reduce operating noise and vacuum cleaner damage includes: During use, the fan inside the vacuum cleaner runs, creating a negative pressure environment between the vacuum cleaner and the inside of the floor brush. The drive mechanism inside the floor brush drives the roller brush 5 to rotate. The airflow formed by the pressure difference flows from the outside of the floor brush to the inside, which works in conjunction with the roller brush 5 to clean the surface of the object. During this process, the electromagnet assembly 6 is powered, creating a fully distributed magnetic field around it and inside the roller brush cavity 2. Magnetic materials sucked into the roller brush cavity 2 are magnetically attracted to the outside of the electromagnet assembly 6, thus trapping them and preventing them from entering the dust collection cavity 3, the connection structure between the vacuum cleaner and the floor brush, or the inside of the vacuum cleaner, which would cause serious structural friction, impact damage, and corresponding operating noise. When too much material is attracted to the electromagnet assembly 6 and the magnetic attraction weakens, the micro motor 7 can flip the electromagnet assembly 6, allowing the material attracted on one side to move through the clearance gap 8 to the inside of the magnetic attraction channel 4, preventing further contamination of the magnetic material. At this time, the power to the electromagnet assembly 6 can be briefly cut off, the magnetic field disappears, and the magnetic material falls into the collection box 9. At this time, it is out of the magnetic attraction range of the magnetic field, so as to achieve stable collection. The other side of the electromagnet assembly 6 can continue to magnetically absorb and collect material, ensuring efficient and uninterrupted use.

[0056] Example 2:

[0057] Please see Figure 2 , 3 Based on the above embodiment 1, preferably, the magnetic suction channel 4 is connected to the rear air supply channel 11, and the end of the air supply channel 11 away from the magnetic suction channel 4 extends to the outside of the floor brush body 1, and a miniature fan 12 is installed inside it.

[0058] The outer end of the air supply channel 11 is provided with a tapered groove 13 whose size gradually decreases from the outside to the inside. The filter screen 14 is embedded in the tapered groove 13. A countersunk groove 15 extends from the outer side of the tapered groove 13. A flow cover 16 is embedded in the countersunk groove 15 and positioned by fasteners. The flow cover 16 is tightly fitted to the outer side of the filter screen 14 and has mesh holes. The filter screen 14 is fully and tightly assembled in the tapered groove 13 and squeezed by the flow cover 16, ensuring the stability and high efficiency of the air intake filtration performance. The flow cover 16 is removable, thereby realizing convenient disassembly, assembly, and cleaning of the filter screen 14 to further ensure filtration performance.

[0059] The working principle of a floor brush in this embodiment that reduces operating noise and vacuum cleaner damage includes: Considering the gap formed between the electromagnet assembly 6 and the clearance notch 8, which connects the magnetic suction channel 4 and the roller brush cavity 2, there is a problem that the internal structure of the magnetic suction channel 4 is easily contaminated. Therefore, in this embodiment, when the floor brush is in use, an airflow is generated from the magnetic suction channel 4 toward the roller brush cavity 2 to prevent dust and impurities in the roller brush cavity 2 from entering the magnetic suction channel 4. Specifically, during use, the micro fan 12 introduces purified outside air into the magnetic suction channel 4 through the air supply channel 11, making the magnetic suction channel 4 under high pressure relative to the roller brush cavity 2, so as to realize the airflow from the magnetic suction channel 4 toward the roller brush cavity 2, thereby preventing dust and impurities in the roller brush cavity 2 from entering the magnetic suction channel 4 and contaminating its internal structure. Moreover, this airflow can perform air shower cleaning on the magnetic material adsorbed on the surface of the electromagnet assembly 6. The arc-shaped surface of the clearance notch 8 can accelerate the airflow to improve the cleanliness of the magnetic material, allowing it to be collected and temporarily stored in a clean state, thus improving the cleanliness of use.

[0060] Example 3:

[0061] Please see Figure 4 Based on the above embodiment 1, preferably, the bottom of the electromagnet assembly 6 extends into the second mounting groove 19 on the bottom surface of the magnetic attraction channel 4. The second mounting groove 19 is a cylindrical structure, in which a pressure sensor 20 is arranged. The sensing end of the pressure sensor 20 abuts against the bottom of the electromagnet assembly 6.

[0062] The bottom edge of the electromagnet assembly 6 is fitted with a second sealing ring 21, which is tightly fitted onto the inner wall of the outer end of the second mounting groove 19.

[0063] The electromagnet assembly 6 has a connecting seat 22 on its top. A central insertion port 23 is located at the center of the upper surface of the connecting seat 22. The drive shaft 24 of the micro motor 7 can be slidably inserted into the central insertion port 23. Several edge insertion ports radiate from the side of the central insertion port 23. Several limiting sliders 26 on the side of the drive shaft 24 are slidably connected to the corresponding edge insertion ports 25. This ensures stable rotational drive of the electromagnet assembly 6 by the micro motor 7, while achieving smooth and flexible axial movement between the electromagnet assembly 6 and the drive shaft 24. This allows the pressure sensor 20 to more accurately sense changes in gravity of the electromagnet assembly 6 and the magnetically attracted material on it. This information is then fed back to the display component of the vacuum cleaner or floor brush via the controller, enabling timely steering of the electromagnet assembly 6 and ensuring sufficient magnetic attraction and stable magnetic material collection capabilities.

[0064] The working principle of a floor brush in this embodiment that reduces operating noise and vacuum cleaner damage includes: To improve the intuitiveness of magnetic material collection and make it more intelligent and multifunctional, in this embodiment, the electromagnet assembly 6 is connected to the pressure sensor 20. During use, as more material is magnetically attracted to the electromagnet assembly 6, it moves downward along the drive shaft 24 and presses down on the pressure sensor 20, increasing the sensed pressure value. This pressure value is fed back to the controller, and the operating status is displayed on the vacuum cleaner or floor brush. This allows for timely manual control by the user when too much material is attracted, or automatic control by the controller when a set value is reached to redirect the electromagnet assembly 6 to transfer the material to the collection box 9 for collection. Meanwhile, the other side of the electromagnet assembly 6 continues to magnetically attract and retain material, ensuring sufficient magnetic attraction performance and stable magnetic material collection capability.

[0065] In summary, due to the adoption of the above technical solution, the floor brush of this embodiment, which can reduce operating noise and damage to the vacuum cleaner, has the following advantages compared with the prior art:

[0066] 1. This utility model's floor brush, by arranging an electromagnet assembly within the magnetic attraction channel connecting the roller brush cavity, can magnetically absorb and collect magnetic materials. Since most of these objects are quite hard, they are trapped at the floor brush, preventing them from entering the dust collection chamber, the connection structure between the vacuum cleaner and the floor brush, or the vacuum cleaner itself, thus avoiding severe structural friction, impact damage, and corresponding operating noise. A micro-motor allows the electromagnet assembly to flip, moving the magnetically attracted material on one side to the inner side of the magnetic attraction channel, preventing further contamination. At this point, the electromagnet assembly can be briefly de-energized, the magnetic field disappears, and the magnetic material falls into the collection box, thus escaping the magnetic field's attraction range for stable collection. Meanwhile, the other side of the electromagnet assembly can continue magnetically absorbing and collecting materials, ensuring efficient and uninterrupted use.

[0067] 2. Considering the gap between the electromagnet assembly and the clearance notch, which connects the magnetic channel to the brush chamber and could lead to contamination of the magnetic channel's internal structure, an airflow is created from the magnetic channel towards the brush chamber during use to prevent dust and impurities from entering the magnetic channel. Specifically, during use, a miniature fan introduces purified outside air into the magnetic channel through the air supply channel, creating a high-pressure environment within the magnetic channel compared to the brush chamber. This creates an airflow from the magnetic channel towards the brush chamber, preventing dust and impurities from entering and contaminating the internal structure. This airflow also cleans the magnetic material adsorbed on the surface of the electromagnet assembly. The curved surface of the clearance notch accelerates the airflow, improving the cleanliness of the magnetic material and ensuring it is collected and temporarily stored in a clean state, thus enhancing overall cleanliness during use.

[0068] 3. To improve the intuitiveness of magnetic material collection and make it more intelligent and multifunctional, the electromagnet component is connected to a pressure sensor. During use, as more material is magnetically attracted to the electromagnet component, it moves downwards along the drive shaft and presses down on the pressure sensor. The sensor detects an increase in pressure, which is then fed back to the controller. The operating status is displayed on the vacuum cleaner or floor brush, allowing for timely manual control by the user when too much material is attracted, or automatic control by the controller when a set value is reached to redirect the electromagnet component to transfer the material into the collection box for collection. Meanwhile, the other side of the electromagnet component continues to magnetically attract and retain material, ensuring sufficient magnetic attraction performance and stable magnetic material collection capability.

[0069] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A ground brush which can reduce operating noise and damage to a dust collector, characterized by, include: The floor brush body has a roller brush cavity at its front end and a dust collection cavity connected to the roller brush cavity at its rear end. The floor brush body has at least one magnetic suction channel on the outside of the roller brush cavity. A roller brush, which is driven to rotate and is disposed inside the roller brush cavity; At least one electromagnet component is rotatably disposed within the magnetic channel and is connected to a micro motor, the micro motor being associated with a controller within the floor brush body, and the side of the magnetic channel is provided with an avoidance notch on the rotation path of the electromagnet component. At least one collection box is located on the side of the electromagnet assembly and is fitted at a mounting port at the bottom of the floor brush body, the mounting port communicating with the magnetic suction channel.

2. The ground brush of claim 1, wherein, The magnetic suction channel is connected to the rear air supply channel, and the end of the air supply channel away from the magnetic suction channel extends to the outside of the floor brush body, where a miniature fan is installed.

3. The ground brush of claim 2, wherein, The outer end of the air supply channel is provided with a tapered groove whose size gradually decreases from the outside to the inside. The filter screen is embedded in the tapered groove. A countersunk groove extends from the outside of the tapered groove. A flow cover is embedded in the countersunk groove and positioned by fasteners. The flow cover is tightly fitted to the outside of the filter screen and has mesh holes.

4. The ground brush of claim 1, wherein, The micro motor is positioned in the first mounting groove on the top surface of the magnetic channel, and the top of the electromagnet assembly extends into the first mounting groove. Both the first mounting groove and the clearance notch are cylindrical structures.

5. A floor brush according to claim 4 that reduces operating noise and damage to the vacuum cleaner, characterized in that, The top edge of the electromagnet assembly is fitted with a first sealing ring, which is tightly fitted onto the inner wall of the outer end of the first mounting groove.

6. The ground brush of claim 1, wherein, The bottom of the electromagnet assembly extends into a second mounting groove on the bottom surface of the magnetic channel. The second mounting groove is a cylindrical structure in which a pressure sensor is installed. The sensing end of the pressure sensor abuts against the bottom of the electromagnet assembly.

7. The brush of claim 6, wherein, The bottom edge of the electromagnet assembly is fitted with a second sealing ring, which is tightly fitted onto the inner wall of the outer end of the second mounting groove.

8. The brush of claim 1, wherein, The electromagnet assembly has a connector on top, and a central socket is provided at the center of the upper surface of the connector. The drive shaft of the micro motor can be slidably inserted into the central socket relative to the axis. Several edge sockets radiate from the side of the central socket, and several limiting sliders on the side of the drive shaft are slidably connected to the corresponding edge sockets.

9. The brush of claim 1, wherein, The collecting box has a guiding surface on the side facing the electromagnet assembly. The guiding surface smoothly connects with the inner side of the mounting port and is wedge-shaped or arc-shaped.

10. The brush of claim 1, wherein, The side wall of the collection box is provided with several arc-shaped spring pieces, and the side wall of the mounting port is provided with snap-fit ​​slots that correspond to the arc-shaped spring pieces. The outer end of the collection box is provided with a decorative cover, which is attached to the bottom surface of the floor brush body and has a handle groove.

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