Floor brush assembly and dust collector

Abstract

The utility model provides a floor brush assembly and a dust collector, and relates to the technical field of cleaning equipment, the floor brush assembly comprises a motor, a floor brush shell and an adjusting mechanism arranged at the front part of the floor brush assembly, and the motor is configured to drive the adjusting mechanism to change the position of the adjusting mechanism; the position of the adjusting mechanism relative to the cleaning surface is determined based on the type of dirt on the cleaning surface and / or the material of the cleaning surface, and the vacuum degrees in the floor brush assembly corresponding to different positions of the adjusting mechanism are different, so that the vacuum degrees are adjusted by changing the position of the adjusting mechanism, and the cleaning efficiency is improved. The floor brush assembly can adapt to different types of carpets and cleaning face materials, overload of the floor brush motor is avoided, the dust collector with the floor brush assembly can improve the applicability and the cleaning effect of the dust collector in various environments, a user does not need to manually adjust the vacuum degree, and use convenience is improved.

Description

[0001] This disclosure claims priority to Chinese Patent Application No. 202510126171.7, filed on January 27, 2025, entitled “A Self-Adjusting Vacuum Cleaner”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of cleaning equipment technology, and more particularly to a floor brush assembly and a vacuum cleaner. Background Technology

[0003] In the design of vacuum cleaners, the floor brush assembly is a key component, and its performance directly affects cleaning efficiency and the protection of the cleaning surface material.

[0004] Traditional carpet brush designs typically include a hinged plate to effectively remove large debris. This plate increases the gap between the brush assembly and the cleaning surface, allowing larger particles to enter the brush assembly. However, this design usually requires manual operation—the user needs to bend over to open or close the plate. This manual operation is inconvenient in practice, especially for users who need to make frequent adjustments, and may negatively impact the user experience.

[0005] Meanwhile, modern vacuum cleaner floor brushes are designed with exceptionally high sealing and internal vacuum levels to improve cleaning efficiency. While this design enhances suction power and improves the ability to clean fine dust and particles, it also makes the floor brush motor more prone to overload when cleaning carpets with high pile lengths, especially carpets with high pile lengths. Furthermore, the large pressure difference between the inside and outside makes it difficult to move the floor brush on carpets. Utility Model Content

[0006] This disclosure provides a floor brush assembly and a vacuum cleaner that solves the problems of inconvenience in cleaning large particles of debris and the problems of floor brush motor overload and floor brush difficulty in being pushed due to the high sealing and high vacuum of long-pile carpets, etc., by introducing an adjustment mechanism.

[0007] In a first aspect, this disclosure provides a floor brush assembly, which includes a motor, a floor brush housing, and an adjustment mechanism disposed at the front of the floor brush assembly. The motor is configured to drive the adjustment mechanism to change the position of the adjustment mechanism.

[0008] The position of the adjustment mechanism relative to the cleaning surface is determined based on the type of dirt on the cleaning surface and / or the material of the cleaning surface, and the vacuum level inside the floor brush assembly varies depending on the position of the adjustment mechanism.

[0009] In this way, by adjusting the vacuum level inside the dynamic brush assembly, the brush assembly can maintain ideal cleaning results under different cleaning surface conditions. For example, for flat or hard cleaning surfaces, the vacuum level can be increased to enhance suction; for carpets with high pile, the vacuum level can be decreased to reduce resistance, making the brush assembly easier to push on carpets with high pile, reducing the load on the brush motor, avoiding unnecessary high-load operation, and thus reducing the risk of brush motor overload. This helps to extend the service life of the brush motor and the entire brush assembly. In addition, the brush assembly can dynamically adjust the vacuum level according to the material of the cleaning surface and the type of dirt, eliminating the need for users to manually adjust the brush assembly settings, improving operational comfort and increasing its applicability.

[0010] Optionally, when the type of dirt is Class I dirt, the adjustment mechanism is driven to the first position; when the type of dirt is Class II dirt, the adjustment mechanism is driven to the second position.

[0011] The first type of dirt is particulate dirt with a diameter or height greater than or equal to the first threshold, and the second type of dirt is particulate dirt with a diameter or height less than the first threshold; and the height of the adjustment mechanism from the cleaning surface when it is in the second position is less than the height from the cleaning surface when it is in the first position.

[0012] Therefore, by adjusting the height of the adjustment mechanism from the cleaning surface, particles of different sizes and heights can be easily introduced. Different heights of the adjustment mechanism from the cleaning surface correspond to different vacuum levels. For larger particles, the height of the adjustment mechanism from the cleaning surface is increased to allow them to enter the floor brush, and the suction power is reduced to avoid clogging. For fine dust, the suction power is increased to ensure thorough cleaning. In this way, by optimizing the settings for different types of dirt and intelligently adjusting the suction power, ideal cleaning results can be achieved under various conditions, and unnecessary energy consumption and wear and tear on the floor brush components can be avoided. In addition, the above-mentioned automatic adjustment mechanism also reduces the need for manual adjustment by the user, making the cleaning process smoother and more efficient, and improving cleaning efficiency.

[0013] Optionally, the first threshold is a value between 1 mm and 10 mm.

[0014] Therefore, setting the first threshold as a range provides greater flexibility. By dynamically adjusting the threshold between 1mm and 10mm, the floor brush assembly 100 can adapt to various cleaning scenarios, thereby more effectively handling various types of dirt, from fine dust to larger particles. This flexibility allows the floor brush assembly to automatically select the appropriate cleaning mode under different cleaning surface materials and dirt conditions, thus improving the applicability of the application.

[0015] Optionally, when the cleaning surface is carpet, the adjustment mechanism is driven to the third position; when the cleaning surface is not carpet, the adjustment mechanism is driven to the fourth position.

[0016] Among them, the height of the adjustment mechanism from the cleaning surface when it is in the third position is greater than the height of the adjustment mechanism from the cleaning surface when it is in the fourth position.

[0017] Therefore, on carpets, a larger gap between the adjustment mechanism and the cleaning surface reduces resistance to the fibers, avoids overloading the brush motor, and improves the mobility of the brush assembly. On non-carpet surfaces, a smaller gap between the adjustment mechanism and the cleaning surface enhances suction and improves the cleaning ability for dust and fine particles. In this way, by adjusting the position of the adjustment mechanism based on the identified cleaning surface material, ideal cleaning results can be provided on different cleaning surface types. In addition, users do not need to manually adjust the brush assembly; the brush assembly can automatically adjust the position of the adjustment mechanism according to the detected cleaning surface material, improving ease of use and user experience.

[0018] Optionally, if the material of the cleaning surface is carpet, the adjustment mechanism is driven to the fifth position if the carpet pile length is greater than or equal to the second threshold, and the adjustment mechanism is driven to the sixth position if the carpet pile length is less than the second threshold.

[0019] Among them, the height of the adjustment mechanism from the clean surface when it is in the fifth position is greater than the height of the adjustment mechanism from the clean surface when it is in the sixth position.

[0020] Therefore, on long-pile carpets, a larger gap between the adjustment mechanism and the cleaning surface reduces resistance to the pile, avoids overloading the brush motor, and improves the mobility of the brush assembly. On short-pile carpets, a smaller gap between the adjustment mechanism and the cleaning surface enhances suction and improves the cleaning ability for dust and fine particles. In this way, by identifying the carpet pile length and adjusting the position of the adjustment mechanism, ideal cleaning results can be provided on different types of carpets. In addition, by properly adjusting the position of the adjustment mechanism, excessive load on the brush motor on carpets with different pile lengths can also be avoided.

[0021] It should be noted that users do not need to manually adjust the floor brush component. The floor brush component will automatically adjust the position of the adjustment mechanism according to the detected carpet pile length, which improves the ease of use and user experience.

[0022] Optionally, the second threshold is a value between 1 mm and 10 mm.

[0023] Therefore, setting the second threshold as a range provides greater flexibility. By dynamically adjusting the threshold between 1mm and 10mm, the floor brush assembly can ensure ideal cleaning results on both long-pile and short-pile carpets, avoiding problems of over- or under-absorption. Moreover, by setting a reasonable second threshold, the floor brush assembly can more accurately identify carpet types, thereby providing more effective cleaning on different carpets and improving application flexibility.

[0024] Optionally, the front of the floor brush assembly is provided with an adjustment chamber, an adjustment mechanism is provided on the adjustment chamber, the bottom surface of the adjustment chamber is provided with a dust collection port, and the adjustment mechanism includes a stop block, which is configured to move relative to the cleaning surface to change the degree to which the dust collection port is blocked by the stop block.

[0025] The position of the adjustment mechanism includes the height of the stop relative to the cleaning surface.

[0026] In this way, by adjusting the size of the dust collection port opening via the stop, the floor brush assembly can provide ideal cleaning results under different types of dirt. For large particles of debris, the degree to which the dust collection port is blocked by the stop is increased; for small particles of debris, the degree to which the dust collection port is blocked is decreased. This design allows the floor brush assembly to adapt to different cleaning needs and cleaning surface types, providing effective cleaning for both non-carpet and carpet surfaces. Moreover, by optimizing the size of the dust collection port opening, overloading of the floor brush motor can be avoided, improving energy efficiency. In addition, since the position of the stop can be precisely controlled, more flexible cleaning options are provided to meet the needs of different users and different environments.

[0027] Optionally, a cover is provided on the upper part of the adjustment chamber located at the front of the floor brush assembly, and an air inlet is provided on the cover. The motor is also configured to drive the adjustment mechanism to change the ventilation area of ​​the air inlet by changing the position of the adjustment mechanism.

[0028] In this way, by precisely controlling the ventilation area of ​​the air inlet by changing the position of the adjustment mechanism, the floor brush assembly can provide ideal suction and cleaning effect in different cleaning scenarios. This design allows the floor brush assembly to adapt to different types of cleaning surfaces and dirt, effectively cleaning non-carpet, carpet, and debris of different particle sizes. Moreover, the adjustability of the air inlet ventilation area provides more flexible cleaning options to meet the cleaning needs of different users and different environments. In addition, by optimizing the air inlet ventilation area, the floor brush motor can be prevented from overloading, extending the service life of the floor brush assembly and improving energy efficiency.

[0029] Optionally, when the cleaning surface is carpet, the adjustment mechanism is driven to the seventh position; when the cleaning surface is not carpet, the adjustment mechanism is driven to the eighth position.

[0030] When the adjustment mechanism is in the seventh position, the ventilation area of ​​the air inlet is greater than that when it is in the eighth position.

[0031] In this way, by changing the position of the adjustment mechanism to adjust the ventilation area of ​​the air inlet, the floor brush assembly can provide ideal cleaning results on cleaning surfaces of different materials. By optimizing the ventilation area of ​​the air inlet for different cleaning surfaces, the adaptability of the floor brush assembly is improved. In addition, by adjusting the ventilation area of ​​the air inlet to optimize the vacuum degree inside the floor brush assembly, the overload of the floor brush motor can be avoided, the service life of the floor brush assembly can be extended, and energy efficiency can be improved.

[0032] It should also be noted that the aforementioned automated adjustment mechanism reduces the need for users to manually adjust the floor brush components, improving ease of use and comfort.

[0033] Optionally, if the material of the cleaning surface is carpet, the adjustment mechanism is driven to the ninth position if the carpet pile length is greater than or equal to the third threshold, and the adjustment mechanism is driven to the tenth position if the carpet pile length is less than the third threshold.

[0034] When the adjustment mechanism is in the ninth position, the ventilation area of ​​the air inlet is greater than that when it is in the tenth position.

[0035] Thus, when the carpet pile length is greater than or equal to the third threshold, increasing the ventilation area of ​​the air inlet can reduce the vacuum level inside the brush assembly, thereby preventing the carpet pile from being excessively pulled or damaged. This helps protect the structural integrity of the carpet while ensuring effective cleaning. For carpets with shorter pile, reducing the ventilation area of ​​the air inlet can increase the vacuum level inside the brush assembly, thereby increasing suction and enhancing cleaning ability, ensuring that dust and dirt on the carpet surface and deep within are effectively removed. Therefore, by adjusting the ventilation area of ​​the air inlet according to the pile length, and thus adjusting the suction, unnecessary wear or damage to the carpet material can be avoided, extending the carpet's lifespan.

[0036] In addition, the aforementioned automatic adjustment mechanism allows the floor brush component to easily adapt to different types of carpets without the need for manual adjustments to other settings, thus improving the user experience.

[0037] Optionally, the third threshold is a value between 1 mm and 10 mm.

[0038] In this way, the 1mm to 10mm range covers the pile length of most common carpets, enabling the device to adapt to a variety of carpet types, from short-pile carpets to long-pile carpets. Therefore, by setting a reasonable third threshold, the floor brush assembly can more accurately identify the carpet type and adjust the suction of the floor brush assembly according to different pile lengths, thereby ensuring effective cleaning of the carpet while avoiding damage to the carpet.

[0039] Optionally, the regulating mechanism may also include a valve for blocking the air intake, wherein the ventilation area of ​​the air intake is changed by adjusting the valve.

[0040] Because the valve provides precise control over the air intake ventilation area, by adjusting the valve, the vacuum level inside the floor brush assembly can be changed, enabling the floor brush assembly to achieve ideal cleaning results under different cleaning surface materials and dirt conditions. Moreover, by optimizing the air intake ventilation area through the valve, the floor brush motor can be prevented from being overloaded, thereby extending the service life of the floor brush assembly and improving energy efficiency.

[0041] In addition, the adjustable valves offer more flexible cleaning options, allowing for position adjustments based on different cleaning needs and surface conditions. Moreover, the automated adjustment mechanism reduces the need for manual adjustments by the user, improving ease of use and comfort.

[0042] Optionally, the adjustment mechanism also includes a stop, the position of which is changed by adjusting the height of the stop relative to the cleaning surface. The valve is connected to a lead screw via a nut, and the motor is configured to move the valve and the stop via the lead screw.

[0043] Therefore, by controlling the valve and stop simultaneously with a single motor and lead screw, the mechanical structure is simplified, the reliability and response speed of the floor brush assembly are improved, and the lead screw drive can provide high-precision position control, allowing the valve and stop to be precisely adjusted according to specific cleaning needs.

[0044] Optionally, the valve is provided with a limit groove, and the stop block is provided with a protrusion that can move within the limit groove.

[0045] In this way, the relative position of the valve and the stop block can be precisely controlled through the cooperation of the limiting groove and the protrusion, thereby realizing the adjustment of the ventilation area of ​​the air inlet and the opening degree of the dust collection port. This mechanical structure is simple and reliable, reduces the complex control requirements, and improves stability and durability.

[0046] Optionally, the adjustment mechanism also includes a stop, in the case that the cleaning surface is carpeted, the position of the stop is adjusted to increase the height of the stop relative to the cleaning surface before the valve is adjusted to increase the ventilation area of ​​the air intake.

[0047] Therefore, by adjusting the height of the stop, the brush assembly moves more smoothly on the carpet, reducing friction and preventing damage to the carpet fibers. Further adjusting the valve increases the ventilation area of ​​the air inlet and further reduces the vacuum inside the brush assembly, which helps to avoid pulling and damaging the carpet fibers and extends the carpet's lifespan. In this way, by adjusting the stop first and then the valve, the brush assembly can provide better cleaning results on the carpet while avoiding excessive adhesion to the carpet.

[0048] Optionally, the floor brush assembly also includes an optical sensor disposed on the floor brush housing, and the identification of the type of dirt and / or the material of the cleaning surface is based at least in part on sensor information detected by the optical sensor.

[0049] Optical sensors can detect and analyze the characteristics of the cleaning surface in real time. Therefore, by using optical sensors, the material of the cleaning surface and the type of dirt can be accurately identified, improving the accuracy of identification and the response speed of the floor brush assembly.

[0050] Optionally, the optical sensor includes a light emitter and a light receiver; the light emitter is located at one end of the floor brush assembly, and the light receiver is located at the other end of the floor brush assembly.

[0051] In this embodiment, at least a portion of the light emitted by the light emitter is received by the light receiver, and the light emitted by the light emitter is at least partially blocked in the presence of a specific type of dirt and / or the material of the clean surface, and the identification of the type of dirt on the clean surface and / or the material of the clean surface is at least partially based on the light received by the light receiver.

[0052] Therefore, through the cooperation of the light emitter and the light receiver, the floor brush assembly can detect changes in light, and then accurately identify the material and type of dirt on the cleaning surface based on the light information received by the light receiver. This accurate identification helps to optimize the cleaning strategy. Moreover, the light emitter and the light receiver can monitor changes on the cleaning surface in real time and quickly identify different types of dirt and materials.

[0053] Optionally, the light emitter is located at one end of the adjustment compartment of the floor brush assembly, and the light receiver is located at the other end of the adjustment compartment of the floor brush assembly.

[0054] By placing the light emitter and receiver at both ends of the adjustment chamber, it is ensured that the light can effectively cover the area to be detected, improving the accuracy and sensitivity of the detection. This design enables the floor brush assembly to detect various types of clean surfaces and dirt conditions, accurately identifying both carpets and large particles.

[0055] Optionally, the light emitter includes at least one of an infrared emitter, a light-emitting diode, and a laser emitter, and the light receiver includes at least one of a photoresistor, a photodiode, a laser receiver, and an infrared receiver.

[0056] Since different types of light emitters and receivers can adapt to a variety of detection needs, the appropriate type and number of light emitters and receivers can be selected according to specific application requirements to improve the reliability and stability of detection, ensure accurate identification of the type of dirt and / or the material of the clean surface under various conditions, and support a variety of application scenarios.

[0057] In a second aspect, this disclosure provides a vacuum cleaner, which includes a vacuum cleaner main unit, a vacuum tube, and a floor brush assembly as described in any of the first aspects. The vacuum cleaner main unit is connected to the floor brush assembly via the vacuum tube. The vacuum cleaner main unit includes a vacuum source that generates vacuum suction and a dust cup. The roller brush in the floor brush assembly rotates to clean dirt from the cleaning surface and enters the dust cup through the vacuum tube.

[0058] Therefore, the floor brush assembly, combined with the mechanical roller brush and the vacuum suction provided by the vacuum cleaner, can effectively clean various types of dirt. Based on the design of the floor brush assembly in the above embodiments, users do not need to understand or study the detailed parts of the device before using the vacuum cleaner. Moreover, during use, users do not need to pay attention to the condition of the cleaning surface or manually adjust the floor brush assembly, as it is entirely based on automatic adjustment. This greatly simplifies the operation steps. Furthermore, the vacuum cleaner can automatically identify and adapt to different cleaning surface materials and types of dirt. Users only need to start the device to complete the cleaning task, greatly improving the user experience.

[0059] In addition, the vacuum cleaner can adjust its structure with fine control according to different surface textures and dust sizes, ensuring that every type of surface and dirt can be effectively cleaned. This fine control not only improves the cleaning effect but also effectively avoids damage to the surface being cleaned.

[0060] It should also be noted that because the adjustment mechanism is self-adjusting, there is no need to set large, user-operable components on the surface of the floor brush assembly for controlling the opening and closing of the hinge plate. This reduces the limitations on the floor brush design and eliminates unnecessary mechanical parts, making the product more compact and aesthetically pleasing.

[0061] Optionally, buttons or a touchscreen can be installed on the vacuum cleaner. When the button or touchscreen is triggered by the user, the motor drives the adjustment mechanism to move between different positions.

[0062] Therefore, in this disclosure, users can also manually adjust the position of the adjustment mechanism according to specific cleaning needs, providing greater operational flexibility. This direct control method allows users to quickly switch the position of the adjustment mechanism between different cleaning tasks, or to manually correct it if the vacuum cleaner's automatic adjustment mechanism is not in a suitable position, thereby improving cleaning accuracy and meeting more diverse user needs.

[0063] In addition, the buttons and touchscreen provide an intuitive user interface, making operation simpler and more convenient. Users can easily understand and select different cleaning modes, improving the user experience.

[0064] Optionally, the vacuum cleaner also includes at least one of a current sensor for detecting current information of the floor brush motor, an electric power sensor for detecting electric power information of the floor brush motor, and a vacuum sensor for detecting vacuum information within the floor brush assembly, wherein the identification of the type of dirt on the cleaning surface and / or the material of the cleaning surface is based on at least one of the current information, electric power information, and vacuum information.

[0065] Therefore, by combining current information, power information, and vacuum information, the material and type of dirt on the cleaning surface can be identified more accurately. This multi-dimensional data analysis improves the accuracy and reliability of identification. Furthermore, the current information, power information, and vacuum information can reflect changes in the load and suction of the floor brush motor in real time, allowing the vacuum cleaner to adjust the position of the adjustment mechanism in a timely manner according to changes in the load and suction of the floor brush motor, achieving a higher degree of intelligent operation and reducing the need for manual intervention by the user.

[0066] Optionally, in the case where the vacuum cleaner includes at least one of a current sensor and an electrical power sensor, and the identification of the type of dirt on the cleaning surface and / or the material of the cleaning surface is based at least in part on at least one of the current information and electrical power information:

[0067] Identification is initially based on sensor information detected by the optical sensor;

[0068] In cases where the identification result based on the optical sensor indicates a specific type of dirt and / or the material of the clean surface, the identification also includes verifying the identification result based on at least one of current information and electrical power information.

[0069] Therefore, by using a multi-layered recognition mechanism that combines data from optical and electrical sensors, the material of the cleaning surface and the type of dirt can be determined more accurately. This multi-sensor fusion design enhances the intelligence level of the vacuum cleaner, enabling it to adapt more flexibly to different cleaning scenarios. Moreover, without manual intervention from the user, the vacuum cleaner can automatically identify the specific type of dirt and / or the material of the cleaning surface to adjust the position of the adjustment mechanism, simplifying operation and improving the user experience.

[0070] Understandably, accurate identification and adjustment also help prevent damage to the cleaning surface and excessive wear and tear on the vacuum cleaner, thus extending its lifespan.

[0071] In summary, this disclosure provides a floor brush assembly and a vacuum cleaner that solves the problems of inconvenience in cleaning large particles of debris and the problems of overload of the floor brush motor and difficulty in pushing the floor brush caused by the high sealing and high vacuum of long-pile carpets, etc. The adjustment mechanism is located at the front of the floor brush assembly and is driven by a motor to change its position. The adjustment mechanism can also automatically adjust its position according to the material of the cleaning surface and the type of dirt. The adjustment mechanism allows larger debris to enter the floor brush; furthermore, the positional change of the adjustment mechanism directly affects the vacuum level inside the floor brush assembly. Therefore, when cleaning a carpet with high pile, the motor-driven adjustment mechanism lowers the vacuum level to reduce resistance between the floor brush and the carpet. For flatter or short-pile carpets, the motor-driven adjustment mechanism increases the vacuum level to improve suction and cleaning efficiency. Thus, through this floor brush assembly design, from a user experience perspective, users do not need to study the details of its components, pay attention to the surface condition, or manually operate the brush head before using the vacuum cleaner with this floor brush assembly. They can complete cleaning of various dust and / or surface conditions in one go, greatly improving user-friendliness. From a cleaning effect perspective, through modifications... The variable adjustment mechanism adjusts the vacuum level, allowing the floor brush assembly to adapt to different types of dirt and cleaning surfaces, preventing overload of the floor brush motor. This design improves the vacuum cleaner's applicability and cleaning effectiveness in various environments. For example, when cleaning large debris and carpets, the automatic adjustment to a suitable vacuum level and the position of the adjustment mechanism prevent large debris from getting stuck and avoids damage to carpets due to excessive vacuum, ensuring cleaning effectiveness while protecting the cleaning surface. Furthermore, from a product design perspective, if a manually operated component is included, it needs to be large enough for the user to notice and operate easily. The disclosed technical solution adaptively adjusts the vacuum level, eliminating the need for manual adjustment by the user, reducing limitations on the floor brush design, and improving ease of use. Attached Figure Description

[0072] To more clearly illustrate the technical solutions in the specific embodiments or prior art of this disclosure, the accompanying drawings used in the description of the specific embodiments or prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale. The drawings are as follows:

[0073] Figure 1 This is an application scenario diagram of a vacuum cleaner provided in this disclosure;

[0074] Figure 2 This disclosure provides a partial structural schematic diagram of a floor brush assembly;

[0075] Figure 3This is a schematic diagram of the external structure of a floor brush assembly provided in this disclosure;

[0076] Figure 4 This is a schematic diagram of the position switching of an adjustment mechanism provided in this disclosure;

[0077] Figure 5 An exploded view of a floor brush component provided in this disclosure;

[0078] Figure 6 A schematic diagram illustrating the position switching of another adjustment mechanism provided in this disclosure;

[0079] Figure 7 This is a front structural diagram of a valve and stop block combination provided in this disclosure;

[0080] Figure 8 This is a schematic diagram of the rear structure of a valve and stop block combination provided in this disclosure;

[0081] Figure 9 This is a schematic diagram of the position of an adjustment mechanism provided in this disclosure;

[0082] Figure 10 This is a partially exploded view of a floor brush component provided in this disclosure;

[0083] Figure 11 This is a schematic diagram of the structure of a vacuum cleaner provided in this disclosure.

[0084] The accompanying drawings have illustrated specific embodiments of this disclosure, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this disclosure to those skilled in the art through reference to particular embodiments.

[0085] Figure label:

[0086] 100-Floor brush assembly; 200-Vacuum cleaner; 101-Motor; 102-Floor brush housing; 103-Adjustment mechanism; 104-Adjustment chamber; 105-Lead screw; 106-Optical sensor; 201-Button; 202-Touch screen; 203-Vacuum cleaner main unit; 204-Vacuum tube; 11-Dust collection port; 12-Block; 13-Bag cover; 14-Air inlet; 15-Valve; 121-Protruding post; 151-Limiting groove; 161-Light emitter; 162-Light receiver; 21-Vacuum source; 22-Dust cup. Detailed Implementation

[0087] To make the objectives, technical solutions, and advantages of this disclosure clearer, the technical solutions in this disclosure will be clearly and completely described below in conjunction with the embodiments of this disclosure. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0088] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this disclosure 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, and therefore should not be construed as a limitation of this disclosure. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this disclosure, "a plurality of" means two or more, unless otherwise explicitly specified.

[0089] To improve cleaning efficiency, existing vacuum cleaner floor brushes have extremely high sealing and internal vacuum levels. While this design enhances suction power and improves the ability to clean fine dust and particles, it also presents challenges when dealing with different types of carpets, especially those with longer pile. As carpet resistance increases with pile length, this high sealing and vacuum design makes the floor brush motor more prone to overload when cleaning on carpets with longer pile. Furthermore, the significant pressure difference between the inside and outside makes it difficult to move the floor brush on carpets.

[0090] To address the aforementioned problems, this disclosure provides a floor brush assembly that solves the issues of inconvenience in cleaning large particles of debris and the problems of overload on the floor brush motor and difficulty in pushing the floor brush caused by the high sealing and high vacuum of long-pile carpets, etc. The adjustment mechanism is located at the front of the floor brush assembly and is driven by a motor to change its position. Furthermore, the adjustment mechanism can automatically adjust its position according to the material of the cleaning surface and the type of dirt. The adjustment mechanism allows large particles of debris to enter the floor brush assembly. Furthermore, the position of the adjustment mechanism directly affects the vacuum level inside the floor brush assembly. Therefore, when cleaning a carpet with high pile, the motor drives the adjustment mechanism to lower the vacuum level, reducing resistance between the brush and the carpet. For flatter or shorter-pile carpets, the motor drives the adjustment mechanism to increase the vacuum level, improving suction and cleaning efficiency. By adjusting the vacuum level through the change in the adjustment mechanism's position, the floor brush assembly can adapt to different types of dirt and cleaning surfaces, preventing overload of the brush motor. This design, utilizing a floor brush assembly, improves the vacuum cleaner's applicability and cleaning effectiveness in various environments, and eliminates the need for manual vacuum adjustment by the user, enhancing ease of use.

[0091] It should be noted that in this disclosure, the floor brush component can also be referred to simply as the floor brush.

[0092] The technical solutions of this disclosure and how they solve the aforementioned technical problems will be described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. This disclosure will now be described with reference to the accompanying drawings.

[0093] For example, a vacuum cleaner using the aforementioned floor brush component can be applied to household cleaning scenarios. Figure 1 This is an application scenario diagram of a vacuum cleaner provided in this disclosure, such as... Figure 1 As shown, the application scenario includes a vacuum cleaner 200, which has a floor brush assembly 100 and a touch screen 202. Taking carpet cleaning as an example, when the vacuum cleaner 200 cleans a long-pile carpet, the position of the adjustment mechanism in the floor brush assembly 100 can be changed by the motor to reduce the vacuum and reduce the resistance between the roller brush in the floor brush assembly 100 and the carpet. Correspondingly, when the vacuum cleaner 200 cleans a short-pile carpet, the position of the adjustment mechanism in the floor brush assembly 100 can also be changed by the motor to ensure sufficient vacuum and achieve better cleaning results.

[0094] Optionally, a touch screen 202 is provided on the handheld part of the vacuum cleaner 200. The touch screen 202 has an option to adjust the position of the adjustment mechanism. Therefore, the user can also trigger the option on the touch screen 202 to change the position of the vacuum cleaner 200 control adjustment mechanism and change the vacuum level inside the floor brush assembly 100 to suit different application scenarios and user needs.

[0095] It should be noted that this disclosure does not specifically limit the way users can adjust the position of the adjustment mechanism. The above is just an example. Optionally, the position of the adjustment mechanism can also be adjusted by pressing a button.

[0096] It should also be noted that this disclosure does not specifically limit the application scenarios of the vacuum cleaner 200 with the application of the floor brush component 100. It can also be applied to a series of scenarios that require dust removal, such as shopping malls, schools, and hospitals.

[0097] Based on the above application scenarios, the vacuum cleaner 200 reduces the vacuum level on carpets with high pile length, thereby reducing the load on the floor brush motor and avoiding overload issues. This adjustment protects the motor without affecting cleaning performance, thus extending its service life. Furthermore, the adjustment mechanism reduces the internal and external pressure difference, making the floor brush assembly easier to maneuver on carpets with high pile length, improving the user experience. Correspondingly, the structure of the floor brush assembly 100 is as follows... Figure 2 and Figure 3 As shown, Figure 2 This disclosure provides a partial structural schematic diagram of a floor brush component. Figure 3 This is a schematic diagram of the external structure of a floor brush assembly provided in this disclosure, as shown below. Figure 2 and Figure 3 As shown, the floor brush assembly 100 includes a motor 101, a floor brush housing 102, and an adjustment mechanism 103 disposed at the front of the floor brush assembly 100. The motor 101 is configured to drive the adjustment mechanism 103 to change the position of the adjustment mechanism 103.

[0098] The position of the adjustment mechanism 103 relative to the cleaning surface is determined based on the type of dirt on the cleaning surface and / or the material of the cleaning surface, and the vacuum level inside the floor brush assembly 100 is different for different positions of the adjustment mechanism 103.

[0099] For example, when the floor brush assembly 100 is working on different types of cleaning surfaces, sensors or other detection devices identify the material of the cleaning surface and the type of dirt. Then, the motor 101 drives the adjustment mechanism 103 according to the detected information to adjust its position, thereby changing the vacuum level inside the floor brush assembly 100 to adapt to the current cleaning needs.

[0100] In this way, by adjusting the vacuum level inside the dynamic floor brush assembly 100 through the adjustment mechanism 103, the floor brush assembly 100 can maintain an ideal cleaning effect under different cleaning surface conditions. For example, for flat or hard cleaning surfaces, the vacuum level can be increased to enhance suction; for carpets with high pile length, the vacuum level can be decreased to reduce resistance, making the floor brush assembly 100 easier to push on carpets with high pile length, reducing the load on the floor brush motor, avoiding unnecessary high-load operation, and thus reducing the risk of floor brush motor overload. This helps to extend the service life of the floor brush motor and the entire floor brush assembly 100. In addition, the floor brush assembly 100 can dynamically adjust the vacuum level according to the material of the cleaning surface and the type of dirt, eliminating the need for the user to manually adjust the settings of the floor brush assembly 100, improving operational comfort, and increasing its applicability.

[0101] Optionally, the moving position of the adjusting mechanism 103 can also be changed according to the different loads brought about by different types of cleaning surfaces, so that the load of the floor brush motor is always kept within a certain range, for example, the range is that the load of the floor brush motor is less than or equal to 120% of the rated power.

[0102] Optionally, when the type of dirt is Class I dirt, the adjustment mechanism 103 is driven to the first position; when the type of dirt is Class II dirt, the adjustment mechanism 103 is driven to the second position.

[0103] The first type of dirt is particulate dirt with a diameter or height greater than or equal to the first threshold, and the second type of dirt is particulate dirt with a diameter or height less than the first threshold; and the height of the adjustment mechanism 103 from the cleaning surface when it is in the second position is less than the height from the cleaning surface when it is in the first position.

[0104] In this disclosure, the first threshold is a size standard used to distinguish different types of particulate dirt. The first threshold is a preset value used to determine the diameter or height of the particulate dirt so as to classify the dirt into Class I dirt or Class II dirt. For example, particles with a diameter or height greater than or equal to 2 mm, such as soybeans and small stones, are Class I dirt, while particles with a diameter or height less than 2 mm, such as fine dust or microparticles, are Class II dirt. This disclosure does not specifically limit the size of the first threshold, and it can be set based on the product performance parameters of the floor brush assembly.

[0105] Optionally, the first threshold is a value between 1 mm and 10 mm.

[0106] In this disclosure, the lower limit of 1 mm is set to ensure that very fine particulate dirt, such as dust and fine sand, can be effectively identified and handled. These tiny particles usually require higher suction power and closer brush contact to be effectively removed. The upper limit of 10 mm is set to cover larger particles of dirt, such as debris and small stones. These larger particles require reduced suction power or increased distance between the adjustment mechanism 103 and the cleaning surface to avoid clogging. In this range of 1 mm to 10 mm, the adjustment mechanism 103 can dynamically adjust its position according to the size of the detected dirt.

[0107] In some embodiments, the first type of dirt is a value with a diameter or height between less than 7 mm and greater than 2 mm.

[0108] Therefore, setting the first threshold as a range provides greater flexibility. By dynamically adjusting the threshold between 1mm and 10mm, the floor brush assembly 100 can adapt to various cleaning scenarios, thereby more effectively handling various types of dirt, from fine dust to larger particles. This flexibility allows the floor brush assembly 100 to automatically select the appropriate cleaning mode under different cleaning surface materials and dirt conditions, thus improving the applicability of the application.

[0109] For example, Figure 4 This is a schematic diagram illustrating the position switching of an adjustment mechanism provided in this disclosure. Taking the floor brush assembly 100 applied to a vacuum cleaner 200 as an example, the vacuum cleaner 200 can identify the type of dirt on the cleaning surface. When a first type of dirt is detected, the adjustment mechanism 103 is driven to a first position, such as... Figure 4 As shown in Figure B, when the adjusting mechanism 103 is in the first position, it is slightly away from the cleaning surface to allow larger particles to enter, avoiding clogging and over-adsorption. When a second type of dirt is detected, the adjusting mechanism 103 is driven to the second position, as shown in Figure B. Figure 4 As shown in Figure A, when the adjustment mechanism 103 is in the second position, it is closer to the cleaning surface, increasing the vacuum level so as to more effectively adsorb fine dirt.

[0110] Therefore, by adjusting the height of the adjustment mechanism 103 from the cleaning surface, particles of different sizes and heights can be easily introduced. Different heights of the adjustment mechanism 103 from the cleaning surface correspond to different vacuum levels. For larger particles, the height of the adjustment mechanism 103 from the cleaning surface is increased to allow them to enter the floor brush, and the suction power is reduced to avoid clogging. For fine dust, the suction power is increased to ensure thorough cleaning. In this way, by optimizing the settings for different types of dirt and intelligently adjusting the suction power, ideal cleaning results can be achieved under various conditions, and unnecessary energy consumption and wear and tear on the floor brush assembly 100 are avoided. In addition, the above-mentioned automatic adjustment mechanism also reduces the need for manual adjustment by the user, making the cleaning process smoother and more efficient, and improving cleaning efficiency.

[0111] Optionally, when the cleaning surface is carpet, the adjustment mechanism 103 is driven to the third position; when the cleaning surface is not carpet, the adjustment mechanism 103 is driven to the fourth position.

[0112] When the adjustment mechanism 103 is in the third position, the distance from the cleaning surface is greater than when it is in the fourth position.

[0113] In this disclosure, carpet can refer to a soft surface with pile or fibers for cleaning, while non-carpet can refer to a hard surface or a non-pile surface for cleaning, such as wooden floors, tiles, etc.

[0114] In this disclosure, when the adjustment mechanism 103 is in the third position, the gap between the floor brush assembly 100 and the cleaning surface is larger, reducing the vacuum inside the floor brush assembly 100, thereby reducing resistance to the carpet pile, preventing overload of the floor brush motor, and making it easier for the floor brush assembly 100 to move on the carpet.

[0115] When the adjustment mechanism 103 is in the fourth position, the gap between the floor brush assembly 100 and the cleaning surface is smaller, which increases the vacuum inside the floor brush assembly 100 to enhance the adsorption capacity for dust and fine particles on non-carpet surfaces.

[0116] It should be noted that the third position can be the same as the first position or a different position. Both are lifting positions of the adjusting mechanism 103. The second position can be the same as the fourth position or a different position. Both are lowering positions of the adjusting mechanism 103.

[0117] For example, when the cleaning surface is detected to be carpet, the adjustment mechanism 103 is driven to a third position, such as... Figure 4 As shown in Figure B. When the cleaning surface is detected to be non-carpet, the adjusting mechanism 103 is driven to the fourth position, as shown in Figure B. Figure 4 As shown in Figure A.

[0118] Therefore, on carpets, a larger gap between the adjustment mechanism 103 and the cleaning surface reduces resistance to the fibers, avoids overloading the brush motor, and improves the mobility of the brush assembly 100. On non-carpet surfaces, a smaller gap between the adjustment mechanism 103 and the cleaning surface enhances suction and improves the cleaning ability for dust and fine particles. In this way, by adjusting the position of the adjustment mechanism 103 according to the identified cleaning surface material, ideal cleaning results can be provided on different cleaning surface types. In addition, the brush assembly 100 does not require manual adjustment by the user; it can automatically adjust the position of the adjustment mechanism 103 according to the detected cleaning surface material, improving ease of use and user experience.

[0119] Optionally, if the material of the cleaning surface is a carpet, and the pile length of the carpet is greater than or equal to the second threshold, the adjustment mechanism 103 is driven to the fifth position; if the pile length of the carpet is less than the second threshold, the adjustment mechanism 103 is driven to the sixth position.

[0120] When the adjustment mechanism 103 is in the fifth position, the distance from the cleaning surface is greater than when it is in the sixth position.

[0121] In this disclosure, the second threshold is a key parameter used to distinguish between long-pile carpets and short-pile carpets. The second threshold can be set according to the range of carpet pile length or based on the product performance parameters of the floor brush assembly. This disclosure does not specifically limit the size of the second threshold.

[0122] Optionally, the second threshold is a value between 1 mm and 10 mm.

[0123] In this disclosure, the threshold for carpet pile length is selected between 1 mm and 10 mm, which can cover most carpet types. The lower limit of 1 mm is set to ensure that short-pile carpets can be effectively identified and identified. On short-pile carpets, the smaller gap can enhance suction and improve the cleaning ability of dust and fine particles. The upper limit of 10 mm is set to ensure that long-pile carpets can be effectively identified and identified. On long-pile carpets, the larger gap can reduce the resistance to the pile and improve the mobility and cleaning efficiency of the floor brush assembly 100. Thus, within this range of 1 mm to 10 mm, the adjustment mechanism 103 can dynamically adjust its position according to the detected carpet pile length.

[0124] Therefore, setting the second threshold as a range provides greater flexibility. By dynamically adjusting the threshold between 1mm and 10mm, the floor brush assembly 100 can ensure that it can provide ideal cleaning results on both long-pile and short-pile carpets, avoiding problems of over- or under-absorption. Moreover, by setting a reasonable second threshold, the floor brush assembly 100 can more accurately identify the carpet type, thereby providing more effective cleaning on different carpets and improving the flexibility of the application.

[0125] It should be noted that the fifth position can be the same as the first or third position, or it can be a different position. Both are lifting positions of the adjusting mechanism 103. The sixth position can be the same as the fourth or second position, or it can be a different position. Both are lowering positions of the adjusting mechanism 103.

[0126] For example, when the detected fluff length is greater than or equal to the second threshold, the adjustment mechanism 103 is driven to the fifth position, such as... Figure 4 As shown in Figure B, in the fifth position, the gap between the adjusting mechanism 103 and the cleaning surface is larger to reduce resistance to long fibers, prevent overloading of the floor brush motor, and make the floor brush easier to move on the carpet. When the pile length of the carpet cleaning surface is detected to be less than the second threshold, the adjusting mechanism 103 is driven to the sixth position, as shown in Figure B. Figure 4 As shown in Figure A, at the sixth position, the gap between the adjustment mechanism 103 and the cleaning surface is smaller to enhance the adsorption capacity for dust and fine particles on the short-pile carpet.

[0127] Therefore, on long-pile carpets, the larger gap between the adjustment mechanism 103 and the cleaning surface reduces resistance to the pile, prevents excessive wear and damage to the carpet fibers, extends the carpet's lifespan, and avoids overloading the floor brush motor. It also improves the mobility of the floor brush assembly 100. On short-pile carpets, the smaller gap between the adjustment mechanism 103 and the cleaning surface enhances suction and improves the cleaning ability for dust and fine particles. Thus, by identifying the carpet pile length and adjusting the position of the adjustment mechanism 103, ideal cleaning results can be provided on different types of carpets. Furthermore, by appropriately adjusting the position of the adjustment mechanism 103, excessive load on the floor brush motor on carpets with different pile lengths can be avoided.

[0128] It should be noted that users do not need to manually adjust the floor brush component 100. The floor brush component 100 will automatically adjust the position of the adjustment mechanism 103 according to the detected carpet pile length, which improves the ease of use and user experience.

[0129] Optional, Figure 5 An exploded view of a floor brush component provided in this disclosure, such as... Figure 5As shown, the front of the floor brush assembly 100 is provided with an adjustment chamber 104, and an adjustment mechanism 103 is provided on the adjustment chamber 104. The bottom surface of the adjustment chamber 104 is provided with a dust collection port 11. The adjustment mechanism 103 includes a stop block 12, which is configured to move relative to the cleaning surface to change the degree to which the dust collection port 11 is blocked by the stop block 12.

[0130] The position of the adjustment mechanism 103 includes the height of the stop 12 relative to the cleaning surface.

[0131] In this disclosure, the adjustment mechanism 103 includes a stop 12, which adjusts the opening degree of the dust collection port 11 by moving. The stop 12 can move up and down relative to the cleaning surface. This movement changes the degree to which the dust collection port 11 is blocked by the stop 12. The position of the stop 12 determines the opening size of the dust collection port 11, thereby affecting the suction power, internal vacuum degree and the size of particles that can be accommodated in the floor brush assembly 100.

[0132] For example, when large particles of debris need to be removed, the stop 12 can be moved to... Figure 4 Position B in the diagram enlarges the opening of the dust collection port 11, allowing larger particles to enter more easily. When enhanced adsorption of fine dust is needed, the baffle 12 can be moved to a position similar to... Figure 4 Position A in the diagram reduces the size of the dust collection port 11 or completely blocks it, thereby increasing suction power.

[0133] In this way, by adjusting the opening size of the dust collection port 11 by the stop 12, the floor brush assembly 100 can provide ideal cleaning results under different types of dirt. For large particles of debris, the degree to which the dust collection port 11 is blocked by the stop 12 is increased, and for small particles of debris, the degree to which the dust collection port 11 is blocked by the stop 12 is decreased. This design allows the floor brush assembly 100 to adapt to different cleaning needs and cleaning surface types, providing effective cleaning for both non-carpet and carpet surfaces. Moreover, by optimizing the opening size of the dust collection port 11, overload of the floor brush motor can be avoided, improving energy efficiency. In addition, since the position of the stop 12 can be precisely controlled, more flexible cleaning options are provided to meet the needs of different users and different environments.

[0134] Optional, such as Figure 5 As shown, a cover 13 is provided on the upper part of the adjustment chamber 104 provided at the front of the floor brush assembly 100. An air inlet 14 is provided on the cover 13. The motor 101 is also configured to drive the adjustment mechanism 103 to change the ventilation area of ​​the air inlet 14 by changing the position of the adjustment mechanism 103.

[0135] In this disclosure, an air inlet 14 is provided on the cover 13 to control the amount of air flowing into the floor brush assembly 100. When it is necessary to increase suction to clean fine dust, the position of the motor 101 drives the adjustment mechanism 103 to change, thereby reducing the ventilation area of ​​the air inlet 14 and thus increasing the vacuum inside the floor brush assembly 100. When it is necessary to clean large particles of debris or move on the carpet, the position of the motor 101 drives the adjustment mechanism 103 to change, thereby increasing the ventilation area of ​​the air inlet and thus reducing suction, preventing the floor brush motor from being overloaded and the floor brush from being difficult to push.

[0136] In this way, by changing the position of the adjustment mechanism 103, the ventilation area of ​​the air inlet 14 is precisely controlled, enabling the floor brush assembly 100 to provide ideal suction and cleaning effect in different cleaning scenarios. This design allows the floor brush assembly 100 to adapt to different types of cleaning surfaces and dirt, effectively cleaning non-carpet, carpet, and debris of different particle sizes. Moreover, the adjustability of the ventilation area of ​​the air inlet 14 provides more flexible cleaning options to meet the cleaning needs of different users and different environments. In addition, by optimizing the ventilation area of ​​the air inlet 14, overload of the floor brush motor can be avoided, extending the service life of the floor brush assembly 100 and improving energy efficiency.

[0137] Optionally, when the cleaning surface is carpet, the adjustment mechanism 103 is driven to the seventh position; when the cleaning surface is not carpet, the adjustment mechanism 103 is driven to the eighth position.

[0138] When the regulating mechanism 103 is in the seventh position, the ventilation area of ​​the air inlet 14 is greater than that when it is in the eighth position.

[0139] In this disclosure, when the cleaning surface is a carpet, the adjustment mechanism 103 is driven to the seventh position. In the seventh position, the ventilation area of ​​the air inlet 14 is larger, which reduces the vacuum inside the floor brush assembly 100, reduces the resistance to the carpet fibers, makes the floor brush easier to move on the carpet, prevents the floor brush motor from being overloaded, and maintains a certain cleaning effect.

[0140] When the cleaning surface is not carpet, the adjustment mechanism 103 is driven to the eighth position. In the eighth position, the ventilation area of ​​the air inlet 14 is smaller, which increases the vacuum inside the floor brush assembly 100 and enhances the adsorption capacity for dust and fine particles.

[0141] For example, Figure 6 This is a schematic diagram illustrating the position switching of another adjustment mechanism provided in this disclosure, such as... Figure 6As shown in Figure B, when the cleaning surface is carpet, the adjustment mechanism 103 is driven to the seventh position, that is, the air inlet 14 is fully open, thereby reducing the resistance to carpet fibers and making it easier for the floor brush to move on the carpet. When the cleaning surface is not carpet, the adjustment mechanism 103 is driven to the eighth position, that is, the air inlet 14 is fully closed, to increase the vacuum inside the floor brush assembly 100 and enhance the suction.

[0142] It should be noted that this disclosure does not limit the specific positions corresponding to the seventh and eighth positions. The seventh position corresponds to the position where the air inlet 14 is at least partially open or fully open, and the eighth position corresponds to the position where the air inlet 14 is at least partially closed or fully closed. However, when the adjustment mechanism 103 is in the seventh position, the ventilation area of ​​the air inlet 14 is greater than when it is in the eighth position.

[0143] In this way, by changing the position of the adjustment mechanism 103 to adjust the ventilation area of ​​the air inlet 14, the floor brush assembly 100 can provide ideal cleaning effects on cleaning surfaces of different materials. By optimizing the ventilation area of ​​the air inlet 14 for different cleaning surfaces, the adaptability of the floor brush assembly 100 is improved. In addition, by adjusting the ventilation area of ​​the air inlet 14 to optimize the vacuum degree inside the floor brush assembly 100, the floor brush motor can be prevented from overloading, the service life of the floor brush assembly 100 can be extended, and energy efficiency can be improved.

[0144] It should also be noted that the aforementioned automated adjustment mechanism reduces the need for users to manually adjust the floor brush assembly 100, improving ease of use and comfort.

[0145] Optionally, if the material of the cleaning surface is a carpet, if the pile length of the carpet is greater than or equal to the third threshold, the adjustment mechanism 103 is driven to the ninth position; if the pile length of the carpet is less than the third threshold, the adjustment mechanism 103 is driven to the tenth position.

[0146] When the regulating mechanism 103 is in the ninth position, the ventilation area of ​​the air inlet 14 is greater than that when it is in the tenth position.

[0147] In this disclosure, when the adjustment mechanism 103 is in the ninth position, the ventilation area of ​​the air inlet 14 is larger, which reduces the vacuum inside the floor brush assembly 100, reduces the resistance to long fibers, makes the floor brush easier to move on the carpet, and at the same time prevents the floor brush motor from being overloaded while maintaining a certain cleaning effect.

[0148] When the adjustment mechanism 103 is in the tenth position, the ventilation area of ​​the air inlet 14 is smaller, which increases the vacuum inside the floor brush assembly 100 and enhances the ability to adsorb dust and fine particles on non-carpet surfaces.

[0149] It should be noted that the ninth position may be the same as the seventh position or a different position. Both positions are where the air intake 14 is at least partially open or fully open. The tenth position may be the same as the eighth position or a different position. Both positions are where the air intake 14 is at least partially closed or fully closed.

[0150] For example, such as Figure 4 As shown in Figure B, when the carpet pile length is detected to be greater than or equal to the third threshold, the adjustment mechanism 103 is driven to the ninth position, as shown in Figure B. Figure 4 As shown in Figure A, when the carpet pile length is detected to be less than the third threshold, the adjustment mechanism 103 is driven to the tenth position.

[0151] Thus, when the carpet pile length is greater than or equal to the third threshold, increasing the ventilation area of ​​the air inlet 14 can reduce the vacuum inside the brush assembly 100, thereby preventing the carpet pile from being excessively pulled or damaged. This helps protect the structural integrity of the carpet while ensuring effective cleaning. For carpets with shorter pile, reducing the ventilation area of ​​the air inlet 14 can increase the vacuum inside the brush assembly 100, thereby increasing suction and enhancing cleaning ability, ensuring that dust and dirt on the carpet surface and deep within are effectively removed. Therefore, by adjusting the ventilation area of ​​the air inlet according to the pile length, and thus adjusting the suction, unnecessary wear or damage to the carpet material can be avoided, extending the carpet's service life.

[0152] In addition, the aforementioned automatic adjustment mechanism allows the floor brush component 100 to easily adapt to different types of carpets without the need for manual adjustments to other settings, thus improving the user experience.

[0153] Optionally, the third threshold is a value between 1 mm and 10 mm.

[0154] It should be noted that the definitions of the third threshold and the second threshold are similar. For details, please refer to the description of the second threshold in the above embodiments, which will not be repeated here.

[0155] In this way, the range of 1mm to 10mm covers the pile length of most common carpets, enabling the device to adapt to a variety of carpet types, from short-pile carpets to long-pile carpets. Therefore, by setting a reasonable third threshold, the floor brush assembly 100 can more accurately identify the carpet type and adjust the suction of the floor brush assembly 100 according to different pile lengths, thereby ensuring effective cleaning of the carpet while avoiding damage to the carpet.

[0156] Optional, such as Figure 5 As shown, the regulating mechanism 103 also includes a valve 15 for blocking the air intake 14, wherein the ventilation area of ​​the air intake 14 is changed by adjusting the valve 15.

[0157] In this disclosure, the position of valve 15 can be adjusted as needed to control the opening size of air intake 14. By changing the position of valve 15, adjustment mechanism 103 can precisely control the airflow entering floor brush assembly 100.

[0158] For example, when suction needs to be reduced, such as on a long-pile carpet, valve 15 can be opened wider to increase the ventilation area of ​​air inlet 14. This reduces the vacuum inside the brush assembly 100 and lowers the resistance to the carpet. When suction needs to be increased, such as on a short-pile carpet, valve 15 can be closed to reduce the ventilation area of ​​air inlet 14. This increases the vacuum inside the brush assembly 100 and enhances the ability to adsorb dust and fine particles.

[0159] Since valve 15 provides precise control over the ventilation area of ​​air inlet 14, the vacuum level inside the floor brush assembly 100 can be changed by adjusting valve 15, enabling the floor brush assembly 100 to achieve ideal cleaning results under different cleaning surface materials and dirt conditions. Moreover, by optimizing the ventilation area of ​​air inlet 14 through valve 15, overload of the floor brush motor can be avoided, thereby extending the service life of the floor brush assembly 100 and improving energy efficiency.

[0160] In addition, the adjustability of valve 15 provides more flexible cleaning options, which can be adjusted according to different cleaning needs and cleaning surface conditions. Moreover, through an automated adjustment mechanism, it reduces the need for manual adjustment by the user and improves the convenience and comfort of use.

[0161] Optional, such as Figure 5 As shown, the adjustment mechanism 103 also includes a stop 12, the position of which is changed by adjusting the height of the stop 12 relative to the cleaning surface. For example... Figure 7 This is a front structural diagram of a valve and stop block combination provided in this disclosure, as shown below. Figure 7 As shown, valve 15 is connected to lead screw 105 connected to motor 101 via nut, and motor 101 is configured to drive valve 15 and stop 12 to move via lead screw 105.

[0162] The motor 101 is configured to drive the lead screw 105. The rotation of the lead screw 105 causes the nut to move. The movement of the nut can adjust the position of the valve 15 and the height of the stop block 12, either individually or in concert. In this way, by adjusting the height of the stop block 12 relative to the cleaning surface, the opening degree of the dust collection port 11 can be changed, thereby affecting the suction power. By driving the valve 15 to move through the lead screw 105, the ventilation area of ​​the air inlet 14 can be changed, thereby further adjusting the suction power.

[0163] Optionally, the motor 101 can automatically adjust the rotation direction and speed of the lead screw 105 according to other sensor inputs or preset programs to achieve precise control of the valve 15 and the stop block 12. This disclosure does not specifically limit the drive control process of the motor 101.

[0164] Therefore, by controlling the valve 15 and the stop 12 with a motor 101 and a lead screw 105, the mechanical structure is simplified, the reliability and response speed of the floor brush assembly 100 are improved, and the lead screw 105 drive can provide high-precision position control, so that the valve 15 and the stop 12 can be precisely adjusted according to specific cleaning needs.

[0165] Optional, such as Figure 5 As shown, a limiting groove 151 is provided on the valve 15, for example. Figure 8 This is a schematic diagram of the rear structure of a valve and stop block combination provided in this disclosure, as shown below. Figure 8 As shown, the stop block 12 is provided with a protrusion 121 that can move within the limiting groove 151.

[0166] The valve 15 is provided with a limiting groove 151, which is used to guide and restrict the movement of the stop block 12. Optionally, the limiting groove 151 includes a first limiting groove and a corresponding second limiting groove. Between the first limiting groove and the second limiting groove, the two edges of the stop block 5 are respectively set in the first limiting groove and the second limiting groove, so that the stop block 5 can move up and down along the two limiting grooves 151. The notch is provided with a stop block 12 that can move up and down, and the back of the stop block 12 is provided with a protrusion 121.

[0167] It should be noted that the shape and length of the limiting groove 151 determine the range and direction of movement of the stop block 12. When the adjusting mechanism 103 drives the valve 15 to move through the lead screw 105 driven by the motor 101, the protrusion 121 slides in the limiting groove 151. This design allows the stop block 12 to be adjusted relatively independently while the valve 15 moves.

[0168] In this way, the relative position of the valve 15 and the stop block 12 can be precisely controlled through the cooperation of the limiting groove 151 and the protrusion 121, thereby realizing the adjustment of the ventilation area of ​​the air inlet 14 and the opening degree of the dust collection port 11. This mechanical structure is simple and reliable, reduces complex control requirements, and improves stability and durability.

[0169] Optional, Figure 9 This is a schematic diagram of the position of an adjusting mechanism provided in this disclosure, such as... Figure 5 and Figure 9As shown, the adjustment mechanism 103 also includes a stop block 12. When the material of the cleaning surface is carpet, before the valve 15 is adjusted to increase the ventilation area of ​​the air inlet 14, the position of the stop block 12 is adjusted to increase the height of the stop block 12 relative to the cleaning surface. For example, the stop block 12 is in a position where the dust collection port 11 is not blocked, and the valve 15 is in a position where the air inlet 14 is not blocked.

[0170] In this disclosure, when the cleaning surface is detected to be a carpet, a specific adjustment procedure is initiated. That is, before adjusting the position of the valve 15, the height of the stop block 12 is first adjusted. The position of the stop block 12 is adjusted to increase its height relative to the cleaning surface. This adjustment reduces the contact and resistance of the stop block 12 with the carpet fibers, making the floor brush assembly 100 easier to move on the carpet. After the stop block 12 is adjusted, the position of the valve 15 is further adjusted to increase the ventilation area of ​​the air inlet 14. Increasing the ventilation area reduces the vacuum inside the floor brush assembly 100, further reducing the adhesion to the carpet and preventing the floor brush from being difficult to move on the carpet or the floor brush motor from being overloaded.

[0171] Understandably, after increasing the height of the stop block 12 relative to the cleaning surface, the vacuum inside the floor brush assembly 100 will also decrease adaptively. Further readjusting the valve position to increase the ventilation area of ​​the air inlet can further reduce the vacuum inside the floor brush assembly 100.

[0172] Optionally, if the material of the cleaning surface is carpet and there is first-class dirt on the carpet, before the valve 15 is adjusted to increase the ventilation area of ​​the air inlet 14, the position of the stop block 12 is adjusted to increase the height of the stop block 12 relative to the cleaning surface.

[0173] Therefore, by adjusting the height of the stop 12, the brush assembly 100 moves more smoothly on the carpet, reducing frictional resistance and preventing damage to the carpet. Further adjusting the valve 15 to increase the ventilation area of ​​the air inlet 14 further reduces the vacuum inside the brush assembly 100, which helps to avoid pulling and damaging the carpet fibers and extends the carpet's lifespan. In this way, by adjusting the stop 12 first and then the valve 15, the brush assembly 100 can provide a better cleaning effect on the carpet while avoiding excessive adsorption to the carpet.

[0174] Optional, Figure 10 This is a partially exploded view of a floor brush component provided in this disclosure, such as... Figure 10 As shown, the floor brush assembly 100 also includes an optical sensor 106 disposed on the floor brush housing 102, and the identification of the type of dirt and / or the material of the cleaning surface is based at least in part on sensor information detected by the optical sensor 106.

[0175] The optical sensor 106 is mounted on the floor brush housing 102 and can detect information on the cleaning surface in real time. By capturing images or light on the cleaning surface, it can collect relevant information about the type of dirt and the material of the cleaning surface. For example, the optical sensor 106 can detect different light intensity information, light energy information, or light reflection characteristics to identify the material of the cleaning surface and the type of dirt.

[0176] The optical sensor 106 can detect and analyze the features of the cleaning surface in real time. Therefore, by using the optical sensor 106, the material of the cleaning surface and the type of dirt can be accurately identified, improving the accuracy of identification and the response speed of the floor brush assembly 100.

[0177] Optional, such as Figure 10 As shown, the optical sensor 106 includes a light emitter 161 and a light receiver 162; the light emitter 161 is located at one end of the floor brush assembly 100, and the light receiver 162 is located at the other end of the floor brush assembly 100.

[0178] In this process, at least a portion of the light emitted by the light emitter 161 is received by the light receiver 162, and in the presence of a specific type of dirt and / or the material of the clean surface, the light emitted by the light emitter 161 is at least partially blocked, and the identification of the type of dirt on the clean surface and / or the material of the clean surface is at least partially based on the light received by the light receiver 162.

[0179] The specific type of dirt and / or the material of the clean surface may refer to dirt with a size greater than a threshold and / or carpet material with a pile length greater than a threshold. The specific type of dirt and / or the material of the clean surface can block at least part of the light emitted by the light emitter 161. This disclosure does not limit the specific dirt and the material of the clean surface corresponding to the specific type of dirt and / or the material of the clean surface.

[0180] In this disclosure, a light emitter 161 emits a beam of light that passes through the space between the cleaning surface and the floor brush assembly 100. Under normal circumstances, a light receiver 162 can receive most or all of the light emitted by the light emitter 161. When there is a specific type of dirt or material on the cleaning surface, the light may be partially or completely blocked or reflected. For example, a thicker carpet or larger solid particles may cause the light to be blocked. Therefore, the intensity of the light received by the light receiver 162 will change.

[0181] For example, when there are large particles such as soybeans or pebbles on the cleaning surface of the front end of the ground brush component 100, the large particles will block at least part of the light emitted by the light emitter 161, resulting in a reduction in the light intensity or light energy received by the light receiver 162.

[0182] In addition, the optical sensor 106 can also help identify long-pile carpets and other cleaning surfaces. For example, when the floor brush assembly 100 is on a long-pile carpet, the longer pile of the carpet will block at least part of the light emitted by the light emitter 161. If the light intensity or light energy is detected to be reduced, it can be determined that the carpet is a long-pile carpet.

[0183] Therefore, through the cooperation of the light emitter 161 and the light receiver 162, the floor brush assembly 100 can detect changes in light, and then accurately identify the material and type of dirt on the cleaning surface based on the light information received by the light receiver. This accurate identification helps to optimize the cleaning strategy. Moreover, the light emitter 161 and the light receiver 162 can monitor changes on the cleaning surface in real time and quickly identify different dirt conditions and material types.

[0184] Optional, such as Figure 10 As shown, the light transmitter 161 is located at one end of the adjustment chamber 104 of the floor brush assembly 100, and the light receiver 162 is located at the other end of the adjustment chamber 104 of the floor brush assembly 100.

[0185] For example, the light transmitter 161 can be disposed on the adjustment chamber 104 at the left end of the dust collection port 11, and the light receiver 162 can be disposed on the adjustment chamber 104 at the right end of the dust collection port 11.

[0186] By placing the light emitter 161 and receiver 162 at both ends of the adjustment chamber 104, it can be ensured that the light can effectively cover the area to be detected, thereby improving the accuracy and sensitivity of the detection. This design enables the floor brush assembly 100 to detect various types of clean surfaces and dirt conditions, accurately identifying both carpets and large particles.

[0187] Optionally, the light emitter 161 includes at least one of an infrared emitter, a light-emitting diode, and a laser emitter, and the light receiver 162 includes at least one of a photoresistor, a photodiode, a laser receiver, and an infrared receiver.

[0188] Infrared emitters emit infrared light, making them suitable for use in environments where visible light conditions vary greatly, as infrared light is not affected by visible light. Light-emitting diodes (LEDs) can provide visible light or light of a specific wavelength, making them suitable for general optical detection applications. Laser emitters provide high-intensity, narrow-beam light, making them suitable for applications requiring high precision and long-distance detection.

[0189] Photoresistors are sensitive to changes in light intensity and are suitable for simple light obstruction detection. Photodiodes can respond quickly to changes in light and are suitable for applications requiring rapid detection and high sensitivity. Laser receivers are specifically designed to receive laser light and are suitable for high-precision detection. Infrared receivers are specifically designed to receive infrared light and are suitable for detection in conjunction with infrared emitters.

[0190] Since different types of light emitters 161 and light receivers 162 can adapt to various detection needs, the appropriate type and number of light emitters 161 and light receivers 162 can be selected according to specific application requirements to improve the reliability and stability of detection, ensure accurate identification of the type of dirt and / or the material of the clean surface under various conditions, and support a variety of application scenarios.

[0191] For example, Figure 11 This is a structural schematic diagram of a vacuum cleaner provided in this disclosure, such as... Figure 11 As shown, the vacuum cleaner 200 includes a vacuum cleaner main unit 203, a vacuum tube 204, and a floor brush assembly 100 described in the above embodiments. The vacuum cleaner main unit 203 is connected to the floor brush assembly 100 through the vacuum tube 204. The vacuum cleaner main unit 203 includes a vacuum source 21 that generates vacuum suction and a dust cup 22. The roller brush in the floor brush assembly 100 rotates to clean the dirt on the cleaning surface and enters the dust cup through the vacuum tube 204.

[0192] The vacuum source 21 and dust cup 22 are used to generate suction and collect dust, and the vacuum tube 204 connects the vacuum cleaner main unit 203 and the floor brush assembly 100 to transmit suction and transport dust.

[0193] Therefore, the floor brush assembly 100, combined with the mechanical roller brush and the vacuum suction provided by the vacuum cleaner 200, can effectively clean various types of dirt. Based on the design of the floor brush assembly 100 in the above embodiments, users do not need to understand or study the detailed components of the device before using the vacuum cleaner 200. Moreover, during use, users do not need to pay attention to the condition of the cleaning surface or manually adjust the floor brush assembly 100, as it is entirely based on automatic adjustment. This greatly simplifies the operation steps. Furthermore, the vacuum cleaner 200 can automatically identify and adapt to different cleaning surface materials and types of dirt. Users only need to start the device to complete the cleaning task, greatly improving the user experience.

[0194] In addition, the vacuum cleaner 200 can adjust the structure 103 with fine control according to different cleaning surface textures and dust sizes to ensure that each type of cleaning surface and dirt can be effectively cleaned. This fine control not only improves the cleaning effect, but also effectively avoids damage to the cleaning surface.

[0195] It should also be noted that since the adjustment mechanism 103 is adaptive, there is no need to set large, user-friendly components on the surface of the floor brush assembly 100 for controlling the opening and closing of the opening and closing plate. This reduces the limitations on the floor brush design and unnecessary mechanical parts, making the product more compact and aesthetically pleasing.

[0196] Optional, such as Figure 1 and Figure 11As shown, a button 201 or a touch screen 202 is provided on the vacuum cleaner 200. When the button 201 or the touch screen 202 is triggered by the user, the motor 101 drives the adjustment mechanism 103 to move between different positions.

[0197] In this disclosure, a button 201 or a touch screen 202 is mounted on the housing of the vacuum cleaner 200 as an interface for the user to interact with the vacuum cleaner 200. The user can control the vacuum cleaner 200 by pressing the button 201 or operating on the touch screen 202.

[0198] For example, when a user presses button 201 or selects a corresponding option on touch screen 202, a signal is sent to the controller of vacuum cleaner 200. After receiving the signal, the controller instructs motor 101 to start, so that motor 101 drives adjustment mechanism 103 to move between different positions. Furthermore, according to the position change of adjustment mechanism 103, vacuum cleaner 200 can adapt to different cleaning needs and cleaning surface types. For example, it can increase the vacuum inside floor brush assembly 100 to clean carpets, or decrease the vacuum inside floor brush assembly 100 to clean second type of dirt.

[0199] Therefore, in this disclosure, users can also manually adjust the position of the adjustment mechanism 103 according to specific cleaning needs, providing greater operational flexibility. This direct control method allows users to quickly switch the position of the adjustment mechanism 103 between different cleaning tasks, or to manually correct it if the vacuum cleaner 200 automatically adjusts the position of the adjustment mechanism 103 inappropriately, thereby improving the accuracy of cleaning and meeting more diverse user needs.

[0200] In addition, the buttons 201 and touchscreen 202 provide an intuitive user interface, making operation simpler and more convenient. Users can easily understand and select different cleaning modes, improving the user experience.

[0201] Optionally, the vacuum cleaner 200 may also include at least one of a current sensor for detecting current information of the floor brush motor, an electric power sensor for detecting electric power information of the floor brush motor, and a vacuum sensor for detecting vacuum information within the floor brush assembly, wherein the identification of the type of dirt on the cleaning surface and / or the material of the cleaning surface is based on at least one of the current information, electric power information, and vacuum information.

[0202] Among them, changes in current can reflect changes in the load on the floor brush motor, indirectly indicating the material of the cleaning surface or the type of dirt. Changes in power can provide comprehensive information about the working status of the floor brush motor, and can also indirectly reflect the material of the cleaning surface or the type of dirt. Changes in vacuum can indicate changes in suction power, reflecting the density of the cleaning surface material or the amount of dirt. Therefore, current information, power information, and vacuum information can also be used as optional methods to identify the type of dirt and / or the material of the cleaning surface.

[0203] Therefore, by combining current information, power information, and vacuum information, the material and type of dirt on the cleaning surface can be identified more accurately. This multi-dimensional data analysis improves the accuracy and reliability of identification. Furthermore, the current information, power information, and vacuum information can reflect the changes in the load and suction of the floor brush motor in real time, allowing the vacuum cleaner 200 to adjust the position of the adjustment mechanism 103 in a timely manner according to the changes in the load and suction of the floor brush motor, thereby achieving a higher degree of intelligent operation and reducing the need for manual intervention by the user.

[0204] Optionally, in the case where the vacuum cleaner 200 includes at least one of a current sensor and an electrical power sensor, and the identification of the type of dirt on the cleaning surface and / or the material of the cleaning surface is based at least in part on at least one of the current information and electrical power information:

[0205] The identification is initially based on sensor information detected by the optical sensor 106;

[0206] In cases where the identification result based on the optical sensor 106 indicates a specific type of dirt and / or the material of the clean surface, the identification also includes verifying the identification result based on at least one of current information and power information.

[0207] Among them, at least one of the current information and the power information is used to verify the recognition result of the optical sensor. For example, a higher current or power can verify that the clean surface identified by the optical sensor is a long-pile carpet.

[0208] Therefore, by using a multi-layered recognition mechanism and combining data from optical and electrical sensors, the material of the cleaning surface and the type of dirt can be determined more accurately. This multi-sensor fusion design enhances the intelligence level of the vacuum cleaner 200, enabling it to adapt more flexibly to different cleaning scenarios. Moreover, without manual intervention from the user, the vacuum cleaner 200 can automatically identify the specific type of dirt and / or the material of the cleaning surface to adjust the position of the adjustment mechanism 103, simplifying operation and improving the user experience.

[0209] Understandably, accurate identification and adjustment also help prevent damage to the cleaning surface and excessive wear and tear on the vacuum cleaner 200, thus extending the service life of the vacuum cleaner 200.

[0210] In some embodiments, the vacuum cleaner 200 can continuously monitor the load of the floor brush motor. When the load of the floor brush motor increases to a certain threshold, for example, exceeding 120% of the rated power, the vacuum cleaner 200 can record this state. If this state occurs two or more times consecutively, the vacuum cleaner 200 will trigger corresponding operations, namely, the motor 101 will start and drive the valve 15 to move, thereby opening the air inlet 14, and / or drive the stop 12 to move, thereby opening the dust collection port 11, in order to reduce the load of the floor brush motor by increasing airflow. Once the load of the floor brush motor drops to a predetermined lower threshold, for example, less than 120% of the rated power, the valve 15 is controlled to move again to close the air inlet 14, which means that the floor brush motor has returned to an acceptable load range.

[0211] The load performance of the floor brush motor varies on carpets of different materials and densities, resulting in different states for the dust collection port 11 and the air inlet 14. For example, on nylon 6 material with a pile height of 30mm (density 0.275-0.287g / cm³), the load performance also varies. 3 On a woven carpet, when the load on the floor brush motor exceeds 120% of its rated power, the dust collection port 11 and the air inlet 14 are open, on a wool material with a pile height of 6.4mm and a density of 0.15g / cm³. 3 When the load on the floor brush motor is less than 120% of its rated power on the woven carpet, the dust collection port 11 and the air inlet 14 are both closed.

[0212] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure, and not to limit them; although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the protection scope of this disclosure is obviously not limited to these specific embodiments. Without departing from the principles of this disclosure, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this disclosure.

Claims

1. A floor brush assembly, characterized in that, The floor brush assembly includes a motor, a floor brush housing, and an adjustment mechanism disposed at the front of the floor brush assembly. The motor is configured to drive the adjustment mechanism to change the position of the adjustment mechanism. The position of the adjustment mechanism relative to the cleaning surface is determined based on the type of dirt on the cleaning surface and / or the material of the cleaning surface, and the vacuum level inside the floor brush assembly corresponds to different positions of the adjustment mechanism.

2. The floor brush assembly according to claim 1, characterized in that, When the type of dirt is a first type of dirt, the adjustment mechanism is driven to a first position; when the type of dirt is a second type of dirt, the adjustment mechanism is driven to a second position. Wherein, the first type of dirt is particulate dirt with a diameter or height greater than or equal to a first threshold, the second type of dirt is particulate dirt with a diameter or height less than the first threshold; and the height of the adjustment mechanism from the cleaning surface when it is in the second position is less than the height from the cleaning surface when it is in the first position.

3. The floor brush assembly according to claim 2, characterized in that, The first threshold is a value between 1 mm and 10 mm.

4. The floor brush assembly according to claim 1, characterized in that, When the material of the cleaning surface is carpet, the adjustment mechanism is driven to the third position; when the material of the cleaning surface is not carpet, the adjustment mechanism is driven to the fourth position. Wherein, the height of the adjustment mechanism from the cleaning surface when it is in the third position is greater than the height of the adjustment mechanism from the cleaning surface when it is in the fourth position.

5. The floor brush assembly according to claim 1, characterized in that, When the material of the cleaning surface is carpet, if the pile length of the carpet is greater than or equal to the second threshold, the adjustment mechanism is driven to the fifth position; if the pile length of the carpet is less than the second threshold, the adjustment mechanism is driven to the sixth position. Wherein, the height of the adjustment mechanism from the cleaning surface when it is in the fifth position is greater than the height of the adjustment mechanism from the cleaning surface when it is in the sixth position.

6. The floor brush assembly according to claim 5, characterized in that, The second threshold is a value between 1 mm and 10 mm.

7. The floor brush assembly according to claim 1, characterized in that, The front of the floor brush assembly is provided with an adjustment chamber, the adjustment mechanism is provided on the adjustment chamber, the bottom surface of the adjustment chamber is provided with a dust collection port, and the adjustment mechanism includes a stop block, the stop block being configured to move relative to the cleaning surface to change the degree to which the dust collection port is blocked by the stop block; The position of the adjustment mechanism includes the height of the stop relative to the cleaning surface.

8. The floor brush assembly according to any one of claims 1-7, characterized in that, A cover is provided on the upper part of the adjustment chamber located at the front of the floor brush assembly. An air inlet is provided on the cover. The motor is also configured to drive the adjustment mechanism to change the ventilation area of ​​the air inlet by changing the position of the adjustment mechanism.

9. The floor brush assembly according to claim 8, characterized in that, When the material of the cleaning surface is carpet, the adjustment mechanism is driven to the seventh position; when the material of the cleaning surface is not carpet, the adjustment mechanism is driven to the eighth position. Wherein, when the adjustment mechanism is in the seventh position, the ventilation area of ​​the air inlet is greater than that when it is in the eighth position.

10. The floor brush assembly according to claim 8, characterized in that, When the material of the cleaning surface is carpet, if the pile length of the carpet is greater than or equal to the third threshold, the adjustment mechanism is driven to the ninth position; if the pile length of the carpet is less than the third threshold, the adjustment mechanism is driven to the tenth position. Wherein, when the adjustment mechanism is in the ninth position, the ventilation area of ​​the air inlet is greater than that when it is in the tenth position.

11. The floor brush assembly according to claim 10, characterized in that, The third threshold is a value between 1 mm and 10 mm.

12. The floor brush assembly according to claim 8, characterized in that, The adjustment mechanism further includes a valve for blocking the air inlet, wherein the ventilation area of ​​the air inlet is changed by adjusting the valve.

13. The floor brush assembly according to claim 12, characterized in that, The adjustment mechanism also includes a stop block whose position is changed by adjusting the height of the stop block relative to the cleaning surface. The valve is connected to a lead screw connected to a motor via a nut, and the motor is configured to move the valve and the stop block via the lead screw.

14. The floor brush assembly according to claim 13, characterized in that, The valve is provided with a limiting groove, and the stop block is provided with a protrusion that can move within the limiting groove.

15. The floor brush assembly according to claim 12, characterized in that, The adjustment mechanism also includes a stop block, and when the material of the cleaning surface is carpet, the position of the stop block is adjusted to increase the height of the stop block relative to the cleaning surface before the valve is adjusted to increase the ventilation area of ​​the air inlet.

16. The floor brush assembly according to claim 1, characterized in that, The floor brush assembly also includes an optical sensor disposed on the floor brush housing, wherein the identification of the type of dirt and / or the material of the cleaning surface is based at least in part on sensor information detected by the optical sensor.

17. The floor brush assembly according to claim 16, characterized in that, The optical sensor includes a light emitter and a light receiver; the light emitter is located at one end of the floor brush assembly, and the light receiver is located at the other end of the floor brush assembly; Wherein, at least a portion of the light emitted by the light emitter is received by the light receiver, and in the presence of a specific type of dirt and / or the material of the cleaning surface, the light emitted by the light emitter is at least partially blocked, and the identification of the type of dirt on the cleaning surface and / or the material of the cleaning surface is at least partially based on the light received by the light receiver.

18. The floor brush assembly according to claim 17, characterized in that, The light emitter is located at one end of the adjustment chamber of the floor brush assembly, and the light receiver is located at the other end of the adjustment chamber of the floor brush assembly.

19. The floor brush assembly according to claim 17, characterized in that, The light emitter includes at least one of an infrared emitter, a light-emitting diode, and a laser emitter, and the light receiver includes at least one of a photoresistor, a photodiode, a laser receiver, and an infrared receiver.

20. A vacuum cleaner, characterized in that, The vacuum cleaner includes a vacuum cleaner main unit, a vacuum tube, and a floor brush assembly as described in any one of claims 1-19. The vacuum cleaner main unit is connected to the floor brush assembly via the vacuum tube. The vacuum cleaner main unit includes a vacuum source that generates vacuum suction and a dust cup. The roller brush in the floor brush assembly rotates to clean dirt from the cleaning surface and enters the dust cup through the vacuum tube.

21. The vacuum cleaner according to claim 20, characterized in that, A button or touchscreen is provided on the vacuum cleaner. When the button or touchscreen is triggered by the user, the motor drives the adjustment mechanism to move between different positions.

22. The vacuum cleaner according to claim 20, characterized in that, The vacuum cleaner also includes at least one of a current sensor for detecting current information of the floor brush motor, an electric power sensor for detecting electric power information of the floor brush motor, and a vacuum sensor for detecting vacuum information within the floor brush assembly. The identification of the type of dirt on the cleaning surface and / or the material of the cleaning surface is based on at least one of the current information, the electric power information, and the vacuum information.

23. The vacuum cleaner according to claim 22, characterized in that, In the case where the vacuum cleaner includes at least one of the current sensor and the power sensor, and the identification of the type of dirt on the cleaning surface and / or the material of the cleaning surface is based at least in part on at least one of the current information and the power information: The identification is first performed based on sensor information detected by the optical sensor; When the identification result based on the optical sensor indicates a specific type of dirt and / or the material of the clean surface, the identification further includes verifying the identification result based on at least one of the current information and the power information.

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