Floor brush, cleaning device and control method

Abstract

The present disclosure provides a floor brush, a cleaning device and a control method, and belongs to the field of cleaning devices. The floor brush comprises a shell, a scraping assembly, a rolling brush and a driving assembly; the shell has a dirt suction port for sucking dirt; the scraping assembly is arranged on the shell; the rolling brush is arranged on the front side of the dirt suction port and movably connected to the shell, and the rolling brush has a scraping position and a separation position; the driving assembly is used to drive the rolling brush to switch between the scraping position and the separation position; when the rolling brush is in the scraping position, the rolling brush at least partially abuts against the scraping assembly, so that the scraping assembly can scrape the rolling brush; when the rolling brush is in the separation position, the rolling brush is separated from the scraping assembly and away from the dirt suction port, so that a gap is formed between the rolling brush and the dirt suction port for large particles to pass through. The floor brush, the cleaning device and the control method provided by the present disclosure improve the adaptability of the floor brush to different types of dirt and different cleaning needs.

Description

Technical Field

[0001] This disclosure belongs to the field of cleaning equipment technology, specifically relating to a floor brush, cleaning equipment, and control method. Background Technology

[0002] As cleaning equipment is increasingly used in home and commercial settings, users' needs for floor cleaning are no longer limited to simple vacuuming or mopping. They now expect the same equipment to flexibly switch between dry and wet cleaning depending on the type of dirt. Dry cleaning typically focuses on the rapid absorption of dry dirt such as dust, hair, particles, and debris; wet cleaning focuses on scrubbing and scraping away liquid stains, adhesive dirt, and residual liquid on the floor. As the actuating component of cleaning equipment, the floor brush's structure affects its adaptability to different cleaning conditions.

[0003] Most existing floor brushes are designed specifically for a certain cleaning mode. In terms of structural design, they can usually only be biased towards either dry cleaning needs or wet cleaning needs, making it difficult to simultaneously meet the different requirements of the roller brush position relationship and spatial arrangement for both types of working conditions.

[0004] For the reasons mentioned above, existing cleaning equipment typically requires different types of floor brushes for dry and wet cleaning modes during actual use. When users need to switch cleaning modes depending on the level of dirt on the floor, they often have to manually remove the current floor brush and replace it with another type. This not only increases the number of steps for users and affects the continuity of the cleaning process, but also increases the complexity of accessory storage and management. Especially when multiple types of dirt, such as dust, particulate matter, and liquid stains, are present in the same cleaning area, frequent brush replacements significantly reduce ease of use and cleaning efficiency. Summary of the Invention

[0005] To adapt to wet cleaning conditions, some floor brushes maintain a close fit between the roller brush and the scraping components. This allows for the removal of dirt, moisture, and attached contaminants from the roller brush surface during rotation, improving the cleanliness of the surface and the ability to handle post-scrub waste. While this design is advantageous for wet cleaning, the space between the roller brush and related components is typically small, limiting the passage of waste into the suction port. When large, dry particles are present on the ground, insufficient passage can occur, hindering the successful suction of these large particles.

[0006] In contrast, to adapt to dry cleaning conditions, some floor brushes focus more on the clearance space in front of the roller brush or between the roller brush and the suction port to improve the passage of particulate matter and debris, allowing larger debris to enter the suction channel more smoothly. However, this type of structure often makes it difficult to maintain a tight fit between the roller brush and the scraping components. Therefore, in wet cleaning scenarios, the scraping effect on the surface of the roller brush for removing liquids and dirt is relatively limited, thus affecting the wet cleaning effect.

[0007] Furthermore, in existing technologies, the key structural relationships of floor brushes are usually fixed. The spatial position of the roller brush relative to the suction port and scraping components is difficult to adjust according to cleaning needs. Therefore, a single floor brush cannot simultaneously handle large particles during dry cleaning and effectively scrape the roller brush during wet cleaning. In other words, existing floor brushes lack flexibility in adapting to different cleaning modes and cannot meet users' needs for a single floor brush to be compatible with both dry and wet cleaning modes.

[0008] To address the aforementioned technical issues, the purpose of this disclosure is to provide a floor brush, cleaning equipment, and control method that can switch between dry and wet cleaning modes according to different cleaning needs, without requiring the user to disassemble or replace different floor brush attachments.

[0009] To achieve the above objectives, the technical solution provided in this disclosure is as follows:

[0010] In a first aspect, this disclosure provides a floor brush, comprising a housing, a scraping assembly, a roller brush, and a drive assembly; the housing has a suction port for absorbing dirt; the scraping assembly is disposed in the housing; the roller brush is disposed in front of the suction port and movably connected to the housing, the roller brush having a scraping position and a disengaged position; the drive assembly is used to drive the roller brush to switch between the scraping position and the disengaged position; wherein, when the roller brush is in the scraping position, the roller brush at least partially abuts against the scraping assembly, so that the scraping assembly can scrape the roller brush; when the roller brush is in the disengaged position, the roller brush separates from the scraping assembly and moves away from the suction port, so that a gap is formed between the roller brush and the suction port that allows large particles to pass through. By enabling the roller brush to switch between the scraping position and the disengaged position, the same floor brush can be adapted to both wet cleaning mode and dry cleaning mode, thereby adapting to different cleaning needs without replacing the floor brush.

[0011] In one or more embodiments, the roller brush includes a support and a brush body, the support being movably connected to the housing in a front-to-back direction, and the brush body being rotatably connected to the support. By allowing the support to move relative to the housing and the brush body to rotate relative to the support, the roller brush position switching function and the brush body rotation cleaning function are separated, which helps to improve the stability and motion coordination of the roller brush structure.

[0012] In one or more embodiments, the drive assembly includes a drive rod movably disposed within the housing, the drive rod being configured to actuate the bracket to drive the roller brush to move in a back-and-forth direction. By configuring the movable drive rod to actuate the bracket, the roller brush can be driven to move in a back-and-forth direction, thereby providing a basis for reliably switching the roller brush between a wiping position and a separation position.

[0013] In one or more embodiments, the bracket includes a first support portion and a second support portion respectively connected to both axial ends of the brush body, wherein the first support portion and the second support portion are slidably connected to the housing. By providing the first support portion and the second support portion at both axial ends of the brush body, double-end support is formed for the brush body, which helps to improve the installation stability of the brush body and makes the force on the bracket more balanced during movement, reducing swaying and tilting.

[0014] In one or more embodiments, the left and right side walls of the housing are respectively provided with a first sliding groove and a second sliding groove extending in the front-back direction. The first support portion is slidably disposed in the first sliding groove, and the second support portion is slidably disposed in the second sliding groove. The first and second sliding grooves provide bilateral guidance for the first and second support portions, which can limit the stable movement of the bracket in the front-back direction and help improve the smoothness of the brush position switching.

[0015] In one or more embodiments, both the first support portion and the second support portion are connected to a first linkage portion, and the drive rod is provided with a first drive portion corresponding to the first linkage portion. When the drive rod moves relative to the housing in a predetermined direction, the first drive portion can push the first linkage portion to move in a first direction, which is forward or backward. Through the cooperation between the first linkage portion and the first drive portion, the movement of the drive rod is transmitted to both sides of the bracket, which is beneficial for synchronously driving the first support portion and the second support portion, thereby improving the stability of the overall movement of the roller brush.

[0016] In one or more embodiments, the driving assembly includes a driving member for driving the driving rod to move relative to the housing in a left-right direction. The first linkage and the first driving member are provided with mutually cooperating first guide surfaces. The first guide surfaces are used to convert the displacement of the driving rod in the left-right direction into the displacement of the bracket in a first direction. By converting the displacement of the driving rod in the left-right direction into the displacement of the bracket in the first direction through the first guide surface, the position switching of the roller brush can be realized while facilitating the arrangement of the driving rod, which is beneficial to optimizing the utilization of the internal space of the housing.

[0017] In one or more embodiments, the first drive unit is provided with a first reset member, which provides a reset force to cause the bracket to move in the opposite direction in a first direction. When the drive rod moves in the opposite direction relative to the housing in a predetermined direction, the first drive unit releases the push on the first linkage, so that the bracket can move in the opposite direction in the first direction under the action of the first reset member. By providing a reset force to move the bracket backward through the first reset member, the bracket can automatically return to its original position when the drive rod moves in the opposite direction, thereby resetting the roller brush.

[0018] In one or more embodiments, the housing is provided with a support wheel that can move vertically relative to the housing; when the roller brush switches from the disengaged position to the scraping position, the support wheel moves upward; when the roller brush switches from the scraping position to the disengaged position, the support wheel moves downward and can support the surface to be cleaned, thereby reducing the pressure of the roller brush on the surface to be cleaned. By providing a vertically movable support wheel, and making the support wheel move vertically in accordance with the position switching of the roller brush, the contact force of the roller brush on the surface to be cleaned can be increased in wet cleaning mode, and the pressure of the roller brush on the surface to be cleaned can be reduced in dry cleaning mode, which is beneficial to improving the cleaning adaptability of different modes.

[0019] In one or more embodiments, the drive assembly includes a drive rod movably disposed on the housing, the drive rod being configured to actuate the support wheel to drive the support wheel to move in a vertical direction. By actuating the support wheel with the drive rod, the support wheel can move vertically, thereby providing a driving basis for the support wheel to switch its support position according to the working state of the roller brush.

[0020] In one or more embodiments, the support wheel is provided with a second linkage part, and the drive rod is provided with a second drive part corresponding to the second linkage part; when the drive rod moves relative to the housing in a predetermined direction, the second drive part can push the second linkage part to move downward. Through the cooperation of the second linkage part and the second drive part, the drive rod can transmit the driving force to the support wheel, thereby realizing the downward movement of the support wheel, which is beneficial for the support wheel to support the surface to be cleaned in a timely manner.

[0021] In one or more embodiments, the drive rod is movable in the left-right direction relative to the housing. The second linkage and the second drive are provided with mutually cooperating second guide surfaces. The second guide surfaces are used to convert the displacement of the drive rod in the left-right direction into the downward displacement of the support wheel. By converting the displacement of the drive rod in the left-right direction into the downward displacement of the support wheel through the second guide surfaces, the support wheel can move downward when the drive rod moves laterally, which helps to simplify the transmission path.

[0022] In one or more embodiments, the support wheel includes a base and a roller rotatably disposed on the base. The base is hinged to the housing, and the hinge axis between the base and the housing extends in a left-right direction, allowing the support wheel to swing up and down relative to the housing about the hinge axis. By allowing the base to swing up and down relative to the housing about the hinge axis extending in the left-right direction, the switching between grounding and lifting the support wheel can be achieved with a relatively simple structure.

[0023] In one or more embodiments, a second reset member is provided between the base and the housing. The second reset member provides a reset force to cause the support wheel to swing upward. When the drive rod moves in the opposite direction to the housing relative to a predetermined direction, the second drive unit releases the push on the second linkage unit, allowing the support wheel to swing upward under the action of the second reset member. By providing a reset force to cause the support wheel to swing upward through the second reset member, the support wheel can automatically swing upward back when the drive rod moves in the opposite direction, thereby moving away from the surface to be cleaned. This facilitates the timely exit of the support wheel from the support state in wet cleaning mode.

[0024] In one or more embodiments, the scraping assembly includes a scraper and a water sprayer, both positioned above the suction port and corresponding to the outer peripheral surface of the roller brush. The scraper has comb-like teeth that abut against the brush body when the roller brush is in the scraping position. The water sprayer has nozzles facing the outer peripheral surface of the brush body, which spray cleaning fluid onto the brush body. By using a scraper and a water sprayer, and by having the scraper's comb-like teeth scrape the brush body while the water sprayer sprays cleaning fluid onto it, the scraping, cleaning, and stain removal effects on the brush body are improved, thereby enhancing the cleaning ability and self-cleaning capability of the roller brush in wet cleaning mode.

[0025] Secondly, this disclosure provides a cleaning device, which includes a main unit and the aforementioned floor brush, wherein the main unit is used to provide negative pressure to the floor brush. By applying the aforementioned floor brush to the cleaning device and having the main unit provide negative pressure to the floor brush, the floor brush can simultaneously perform mechanical processing of dirt and suction, thereby forming a complete cleaning execution and suction coordination system.

[0026] In one or more embodiments, the main unit is configured to provide a first negative pressure to the floor brush when the roller brush is in the disengaged position and a second negative pressure to the floor brush when the roller brush is in the wiping position, wherein the first negative pressure is greater than the second negative pressure. By providing a larger first negative pressure when the roller brush is in the disengaged position and a smaller second negative pressure when the roller brush is in the wiping position, the magnitude of the negative pressure is matched to the operating mode of the floor brush, thereby improving particulate matter suction capacity in dry cleaning mode and reducing the adverse effects of suction on wiping and wet dirt removal in wet cleaning mode.

[0027] Thirdly, this disclosure provides a method for controlling a floor brush, which can be applied to the aforementioned floor brush. The control method includes: in a wet cleaning scenario, controlling the roller brush to move to a scraping position so that the roller brush and the scraping component at least partially abut against each other, so that the scraping component can scrape the roller brush; in a dry cleaning scenario, controlling the roller brush to move to a separation position so that the roller brush and the scraping component separate and move away from the suction port, so that a gap is formed between the roller brush and the suction port that allows large particles to pass through.

[0028] Fourthly, this disclosure provides a control method for a floor brush, which can be applied to the aforementioned floor brush. The control method includes: in a wet cleaning scenario, controlling the support wheel to move upward so that the support wheel can move away from the surface to be cleaned; in a dry cleaning scenario, controlling the support wheel to move downward so that the support wheel can support the surface to be cleaned, thereby reducing the pressure of the roller brush on the surface to be cleaned.

[0029] The floor brush, cleaning equipment, and control method disclosed herein allow the same floor brush to adapt to both dry and wet cleaning modes by enabling the roller brush to switch between a scraping position and a detached position relative to the housing. When the roller brush is in the scraping position, it is at least partially in contact with the scraping assembly, which scrapes the brush body, resulting in better water removal, dirt removal, and wet dirt treatment, making it more suitable for wet cleaning. When the roller brush is in the detached position, it separates from the scraping assembly and moves away from the suction port, creating a gap between the roller brush and the suction port that allows large particles to pass through, thus improving the passage and suction capacity for large particles, making it more suitable for dry cleaning. Therefore, this disclosure allows for switching cleaning modes without changing different floor brushes, improving the adaptability of the floor brush to different types of dirt and cleaning needs, and enhancing ease of use. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments recorded in this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of a floor brush in one embodiment of the present disclosure;

[0032] Figure 2 This is a schematic diagram of the internal structure of the floor brush when the roller brush is in the separated position according to an embodiment of the present disclosure;

[0033] Figure 3 This is a schematic diagram of the internal structure of the floor brush when the roller brush is in the scraping position according to an embodiment of the present disclosure;

[0034] Figure 4 This is a schematic diagram of the structure of the roller brush and the drive component when the roller brush is in the separated position according to an embodiment of the present disclosure;

[0035] Figure 5 This is a schematic diagram of the structure of the roller brush and the drive component when the roller brush is in the scraping position according to an embodiment of the present disclosure;

[0036] Figure 6 This is a cross-sectional view of the floor brush when the roller brush is in the separated position according to an embodiment of the present disclosure;

[0037] Figure 7 This is a cross-sectional view of a floor brush in one embodiment of the present disclosure when the roller brush is in the scraping position;

[0038] Figure 8 This is a schematic diagram of the support wheel in one embodiment of the present disclosure;

[0039] Figure 9 This is a schematic diagram of the structure of the scraping assembly in one embodiment of the present disclosure.

[0040] Explanation of key figure labels:

[0041] 1-Housing, 11-Suction port, 12-First slide groove, 13-Second slide groove, 2-Scraping assembly, 21-Scraper, 211-Comb teeth, 22-Water spray component, 221-Water spray nozzle, 3-Roll brush, 31-Bracket, 311-First support part, 312-Second support part, 313-First linkage part, 32-Brush body, 33-First reset component, 4-Drive assembly, 41-Drive rod, 411-First drive part, 412-Second drive part, 42-Drive component, 5-Support wheel, 51-Second linkage part, 52-Base, 53-Roller, 54-Hinge shaft, 55-Second reset component, 61-First guide surface, 62-Second guide surface. Detailed Implementation

[0042] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0043] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.

[0044] It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. In the embodiments shown in this disclosure, directional representations such as up, down, left, right, front, and back are relative and are used to explain the relative structure and movement of different components in this disclosure. These representations are appropriate when the components are in the positions shown in the figures. However, if the description of the component positions changes, then these representations are considered to change accordingly.

[0045] While researching existing floor brush structures, the inventors noticed that although dry cleaning and wet cleaning both belong to the floor cleaning process, their requirements for the working state of the floor brush are different, and even to some extent, they are mutually restrictive. For wet cleaning, the focus is more on the ability to handle liquid stains, wet residue, and dirt adhering to the surfaces of the cleaning components. Therefore, the internal structure of the floor brush is usually required to have a closer relationship with the functions related to wet stain handling to achieve better scrubbing, dirt removal, and liquid removal effects. For dry cleaning, the focus is more on the smooth entry and passage of dust, particulate matter, and debris. Therefore, a more unobstructed dirt flow path is usually required to avoid obstructing larger particles during entry.

[0046] Existing floor brushes are often designed specifically for one particular need. Once their structural relationship is determined, it is difficult to simultaneously accommodate another cleaning mode. As a result, the applicable scenarios for the same floor brush are relatively limited. Users often need to change different types of floor brushes when switching between different cleaning tasks, which affects the convenience of operation and the continuity of cleaning.

[0047] Based on the above understanding, the technical approach of this disclosure starts with the variability of the internal structural relationships of the floor brush, enabling the same floor brush to proactively change its working mode according to different cleaning needs. In other words, this disclosure constructs a floor brush system capable of switching between different working states, allowing the floor brush to form corresponding internal structural and functional relationships when facing dry and wet cleaning. Thus, the functional adaptation of the floor brush no longer relies on replacing the entire machine's accessories, but rather transforms into the conversion of the internal working states of the same floor brush.

[0048] Furthermore, the overall concept of this disclosure is to design the core cleaning execution component of the floor brush to be capable of changing its state relative to the overall structure, and to simultaneously alter its relationship with the dirt inlet area and the dirt treatment area through this state change. Through these changes, in wet cleaning mode, the floor brush focuses more on its ability to handle wet dirt, liquid residue, and deposits on the surface of the cleaning execution component itself, thus meeting the requirements of wet cleaning for scrubbing, liquid removal, and maintaining the stability of the cleaning execution component's working state. In dry cleaning mode, the floor brush focuses more on its ability to accommodate, pass through, and suck up particulate matter, especially larger particles, thus meeting the requirements of dry cleaning for dirt passage space and suction efficiency. Therefore, by reconstructing the functional relationships of the floor brush's internal structure, a switchable adaptation mechanism can be established between the two different cleaning modes for the same floor brush.

[0049] Please refer to Figures 1 to 7 As shown, a floor brush in one embodiment of this disclosure includes a housing 1, a scraping assembly 2, a roller brush 3, and a driving assembly 4. The housing 1 has a suction port 11 for absorbing dirt. The scraping assembly 2 is disposed on the housing 1. The roller brush 3 is disposed in front of the suction port 11 and is movably connected to the housing 1. The roller brush 3 has a scraping position and a separation position. The driving assembly 4 is used to drive the roller brush 3 to switch between the scraping position and the separation position. When the roller brush 3 is in the scraping position, the roller brush 3 at least partially abuts against the scraping assembly 2 so that the scraping assembly 2 can scrape the roller brush 3. When the roller brush 3 is in the separation position, the roller brush 3 separates from the scraping assembly 2 and moves away from the suction port 11 so that a gap is formed between the roller brush 3 and the suction port 11, allowing large particles to pass through.

[0050] The housing 1 serves as the main supporting structure of the floor brush and can also be used as the mounting base for various functional components. The housing 1 has a suction port 11 for absorbing dirt, thus establishing an entry channel for dirt to enter the floor brush during cleaning operations. The roller brush 3 is located in front of the suction port 11. When the floor brush is cleaning, the roller brush 3 is positioned to first contact the surface to be cleaned, and the suction port 11 is located behind the roller brush 3. This allows the roller brush 3 to first move, drive, or roll up the dirt on the surface to be cleaned, and then, in conjunction with the suction port 11, suck up the corresponding dirt.

[0051] The scraping assembly 2 is located in the housing 1 and is arranged correspondingly to the roller brush 3, enabling the scraping assembly 2 to form a scraping engagement with the roller brush 3 when the roller brush 3 switches to the scraping position. The driving assembly 4 is also located in the housing 1 and is connected to or linked with the roller brush 3 to drive the roller brush 3 to change position relative to the housing 1, thereby switching the roller brush 3 between the scraping position and the separation position. Thus, the housing 1 not only serves to house and support the components but also defines the relative spatial positions of the roller brush 3, the scraping assembly 2, and the driving assembly 4, allowing each component to establish a stable and switchable working relationship around the same structural reference.

[0052] The roller brush 3 can be positioned relative to the housing 1 under the action of the drive assembly 4. The roller brush 3 has two different working states: a scraping position and a disengaged position, corresponding to two different functional configurations of the floor brush. When the roller brush 3 is in the scraping position, it at least partially abuts against the scraping assembly 2, forming a contact relationship sufficient to achieve the scraping action. At this time, as the roller brush 3 rotates, its outer surface passes through the area where the scraping assembly 2 is located. Moisture, liquid dirt, or residual impurities adhering to the surface of the roller brush 3 can be scraped away by the scraping assembly 2, thus keeping the surface of the roller brush 3 relatively clean and facilitating control of the liquid carried by the roller brush 3. Therefore, the roller brush 3 is more suitable for wet cleaning mode in the scraping position.

[0053] In wet cleaning scenarios, the surface to be cleaned often contains liquid stains, semi-fluid dirt, or attached stains that require liquid assistance to remove. After the roller brush 3 scrubs the surface, it tends to bring up a lot of water and wet dirt. When the scraping component 2 and the roller brush 3 form at least partial contact, the roller brush 3 can scrape water and remove dirt in time, thereby improving the cleaning effect of the roller brush 3 in the continuous wet cleaning process and improving the treatment effect of wet dirt.

[0054] When the roller brush 3 is in the disengaged position, it separates from the scraping assembly 2 and moves away from the suction port 11, creating a gap between the roller brush 3 and the suction port 11 that allows large particles to pass through. Here, "large particles" can be understood as granular or lumpy dirt with a larger diameter that is difficult to pass smoothly through narrow channels, compared to dirt such as dust, fine debris, and liquid waste that easily pass through smaller flow spaces. Examples include rice grains, beans, granular pet food, paper scraps, biscuit crumbs, cat litter granules, and similarly large pieces of litter scattered on the ground. In other words, "large particles" are not necessarily limited to a fixed size, but rather refer to the type of dirt that requires a larger flow space to be successfully sucked up.

[0055] After the roller brush 3 is switched to the separation position, it disengages from the scraping assembly 2, preventing the scraping assembly 2 from continuing to adhere to and constrain the roller brush 3; on the other hand, the distance d between the roller brush 3 and the suction port 11 increases (see...). Figure 6 This increases the clearance for dirt in front of the suction port 11. As a result, large particles on the surface to be cleaned are less likely to become clogged or blocked by the limited space between the roller brush 3 and the suction port 11 when pulled by negative pressure towards it. This allows large particles to pass through and enter the suction port 11 more easily. Therefore, the roller brush 3 is more suitable for dry cleaning mode in the separated position, especially for floor cleaning situations where dust, hair, and large dry particles coexist.

[0056] In one exemplary embodiment, please refer to Figures 2 to 5As shown, the roller brush 3 includes a bracket 31 and a brush body 32. The bracket 31 is movably connected to the housing 1 in the front-back direction, and the brush body 32 is rotatably connected to the bracket 31.

[0057] It should be noted that in this disclosure, "front-back direction" is an directional concept used to define the relative arrangement and direction of movement of the various components of the floor brush. Its definition should be understood in conjunction with the actual usage posture and cleaning operation state of the floor brush. Specifically, when the floor brush is in normal cleaning operation state, the direction in which the floor brush travels while cleaning the surface to be cleaned is defined as the front direction, and the direction opposite to this front direction is defined as the rear direction.

[0058] Furthermore, the "front-back direction" can be understood as one of the directions parallel to the surface to be cleaned, and consistent with the main cleaning direction of the floor brush. Therefore, the movement of the roller brush 3 in the front-back direction essentially means that the roller brush 3 changes position relative to the housing 1 towards or away from the direction of the floor brush's movement. When the roller brush 3 moves forward, it usually indicates that the roller brush 3 has shifted towards the front side of the floor brush; when the roller brush 3 moves backward, it indicates that the roller brush 3 has shifted towards the side of the suction port 11 or the rear side of the floor brush.

[0059] The bracket 31 serves as the supporting foundation for the roller brush 3 to switch positions relative to the housing 1, while the brush body 32, as the executing part involved in cleaning the surface to be cleaned, is mounted on the bracket 31. The bracket 31 can move in the front-to-back direction under the guidance and constraint of the housing 1, thereby allowing the roller brush 3 to switch different positions relative to the housing 1 in the front-to-back direction. Since the brush body 32 is rotatably connected to the bracket 31, the brush body 32 can change position along with the bracket 31 when the bracket 31 moves in the front-to-back direction; simultaneously, the brush body 32 can also rotate around its own axis relative to the bracket 31, thus forming an independent yet mutually cooperating relationship between the position switching of the roller brush 3 and the rotational cleaning of the brush body 32.

[0060] The bracket 31 serves to install, support, and drive the brush body 32, ensuring that the brush body 32 maintains a relatively controlled spatial relationship with the housing 1 as it moves with the bracket 31. Simultaneously, the brush body 32 can rotate while being supported by the bracket 31. With this configuration, the bracket 31 is primarily responsible for adjusting the overall position of the roller brush 3 in the front-to-back direction, while the brush body 32 is primarily responsible for rolling, agitating, and carrying away dirt when in contact with the surface to be cleaned.

[0061] Since the functional relationship between the roller brush 3, the suction port 11, and the scraping assembly 2 is mainly established through changes in their relative positions in the front-to-back direction, moving the bracket 31 in the front-to-back direction is more conducive to switching the working state of the roller brush 3 within a limited space. When the bracket 31 drives the brush body 32 to move in the front-to-back direction, the spacing relationship between the brush body 32 and other components inside the housing 1 will change, thereby enabling the roller brush 3 to meet the needs of different cleaning modes in different position states.

[0062] In one exemplary embodiment, please refer to Figures 2 to 5 As shown, the drive assembly 4 includes a drive rod 41 movably disposed in the housing 1. The drive rod 41 is configured to link with the bracket 31 to drive the roller brush 3 to move in the front-back direction.

[0063] The drive rod 41 and the bracket 31 are linked, so that when the drive rod 41 changes position relative to the housing 1, it can transmit its own movement to the bracket 31, and further drive the roller brush 3 to move in the front-back direction. The housing 1 provides installation space for the drive rod 41 in this structure, and can also be used to limit the movement path of the drive rod 41, allowing the drive rod 41 to move on the housing 1 in a predetermined manner. The bracket 31, as the support member of the roller brush 3, after being linked with the drive rod 41, can switch positions relative to the housing 1 in the front-back direction under the drive of the drive rod 41, thereby causing the roller brush 3 to move forward or backward together with the bracket 31.

[0064] The drive rod 41 can be constructed as a rod-shaped, strip-shaped, or elongated component. It can be arranged within the narrow space inside the housing 1 with a relatively small cross-sectional size and can generate linear or yaw motion in a predetermined direction, thus facilitating pushing, pulling, jacking, or guiding interactions with the support 31. Compared to directly using a complex multi-stage transmission assembly, the drive rod 41 can achieve motion transmission from the drive source to the support 31 with a simpler structure. This not only reduces the space occupied by the internal mechanism of the floor brush but also improves the timeliness of the transmission path's action response. At the same time, the drive rod 41 itself is easy to connect with different types of drive components 42, allowing the forward and backward movement of the roller brush 3 to be achieved using different driving methods according to the overall machine design requirements.

[0065] In some feasible implementations, the drive rod 41 can move linearly relative to the housing 1 and push the bracket 31 to move in the front-back direction through contact with the bracket 31. At this time, the drive rod 41 can be slidably set on the housing 1 in the left-right or front-back direction. When the drive rod 41 moves, it can push against the bracket 31 to make the bracket 31 move in the front-back direction. Then, the bracket 31 can be returned to the initial position by means of a reset structure.

[0066] In other feasible implementations, the drive rod 41 can also cooperate with the bracket 31 through a guide surface, using inclined surface cooperation, arc surface cooperation, or irregular contour cooperation to convert the movement of the drive rod 41 in a certain direction into the displacement of the bracket 31 in the front-back direction. With this setting, the installation direction of the drive rod 41 does not need to be consistent with the movement direction of the roller brush 3, which is beneficial to improving the utilization rate of the internal space of the housing 1 and making the arrangement of the drive assembly 4 more flexible.

[0067] The movement of the drive rod 41 can be generated by a variety of different driving methods. For example, the drive rod 41 can be driven by a motor and move linearly by means of a gear, rack, lead screw and nut, or eccentric wheel mechanism; the drive rod 41 can also be driven by a servo motor, which drives the linkage mechanism to move the drive rod 41 through rotation output; the drive rod 41 can also be driven by an electromagnetic drive 42, a pneumatic drive 42 or a hydraulic drive 42 to achieve extension and retraction within the housing 1.

[0068] Specifically, please refer to Figures 2 to 5 As shown, the bracket 31 includes a first support portion 311 and a second support portion 312 respectively connected to the two axial ends of the brush body 32. The first support portion 311 and the second support portion 312 are slidably connected to the housing 1.

[0069] With the aforementioned structural form, the bracket 31 does not support the brush body 32 at a single point. Instead, it provides double-end support to the brush body 32 through the first support portion 311 and the second support portion 312 located at both ends of the axial direction, allowing the brush body 32 to obtain a relatively stable mounting base at both ends of the axial direction. Since the brush body 32 usually has a certain length along the axial direction and needs to continuously rotate and contact the surface to be cleaned during the cleaning operation, supporting the brush body 32 only at local locations can easily lead to problems such as swaying, tilting, or uneven force distribution when the brush body 32 rotates or moves with the bracket 31. By setting the first support portion 311 and the second support portion 312 at both ends of the axial direction of the brush body 32, the force distribution of the brush body 32 in the length direction can be more balanced, which is beneficial to maintaining the axial stability of the brush body 32.

[0070] The first support portion 311 and the second support portion 312 not only serve to install and support the brush body 32, but also together constitute the main force-bearing parts for the movement of the bracket 31 relative to the housing 1. The first support portion 311 and the second support portion 312 are slidably connected to the housing 1, and a relative displacement relationship with the housing 1 is formed between the bracket 31 and the housing 1 under guiding constraints. With this arrangement, the bracket 31 can move along a predetermined path during movement, thereby reducing the swaying, twisting, and jamming of the bracket 31 during movement.

[0071] Further, please refer to Figure 2 and Figure 3 As shown, the left and right side walls of the housing 1 are respectively provided with a first sliding groove 12 and a second sliding groove 13 extending in the front-back direction. The first support part 311 is slidably disposed in the first sliding groove 12, and the second support part 312 is slidably disposed in the second sliding groove 13.

[0072] The left-right direction can be understood as the direction parallel to the axial direction of the brush body 32. The first sliding groove 12 and the second sliding groove 13 are respectively arranged on the side areas of the housing 1 corresponding to the two ends of the axial direction of the brush body 32, so that the first support part 311 and the second support part 312 can form a mutually cooperating double-sided guiding relationship on both sides of the housing 1. With this arrangement, the bracket 31 no longer relies on a single part to guide and cooperate with the housing 1, but is guided and limited at both ends of the axial direction of the brush body 32 through the corresponding sliding relationship between the first support part 311 and the first sliding groove 12, and the second support part 312 and the second sliding groove 13. This helps to ensure that the bracket 31 moves smoothly relative to the housing 1 in the front-back direction.

[0073] The first slide groove 12 and the second slide groove 13 extend in the front-to-back direction, meaning their extension direction is consistent with the expected movement direction of the bracket 31. Therefore, the sliding trajectories of the first support portion 311 and the second support portion 312 in their corresponding slide grooves are also limited to the front-to-back direction. With this configuration, when the bracket 31 drives the brush body 32 to change position, its movement direction can be constrained by the channel shape of the first slide groove 12 and the second slide groove 13, thereby reducing the bracket 31's vertical or horizontal movement and preventing the bracket 31 from swaying, tilting, or jamming during movement. The first slide groove 12 and the second slide groove 13 located on the left and right side walls form a double-sided guide, enabling the first support portion 311 and the second support portion 312 to maintain good synchronization during movement, which is beneficial for maintaining the stability of the brush body 32's axial posture.

[0074] The first groove 12 and the second groove 13 are formed on the left and right side walls of the housing 1. This allows for full utilization of the existing structural space of the housing 1, integrating the guiding function into the housing 1, reducing the need for additional guiding components, and also facilitates a more compact fit between the bracket 31 and the housing 1. After the first support part 311 and the second support part 312 are respectively embedded in the first groove 12 and the second groove 13, they not only obtain guiding action in the front-back direction, but are also surrounded and constrained by the side walls of the housing 1 to a certain extent, thereby improving the stability of the bracket 31 during installation.

[0075] In one exemplary embodiment, please refer to Figures 2 to 5As shown, the first support part 311 and the second support part 312 are both connected to the first linkage part 313. The drive rod 41 is provided with a first drive part 411 corresponding to the first linkage part 313. When the drive rod 41 moves relative to the housing 1 in a predetermined direction, the first drive part 411 can push the first linkage part 313 to move in a first direction, which is forward or backward.

[0076] Based on the aforementioned structural relationship, when the drive rod 41 moves relative to the housing 1, it can transmit its own motion to the first support 311 and the second support 312 through the cooperation between the first drive part 411 and the first linkage part 313, thereby causing the bracket 31 to change position as a whole. Specifically, the drive rod 41 can be arranged inside the housing 1 and is a long strip extending left and right. This is beneficial to conforming to the spatial shape of the interior of the housing 1 along the axial distribution of the brush body 32, and also allows the drive rod 41 to form a long force-bearing range in the left and right directions, thus facilitating the simultaneous arrangement of the support parts on the left and right sides. The first drive part 411 can be arranged at the left and right ends of the drive rod 41, and the first linkage part 313 can protrude from the first support part 311 and the second support part 312 into the housing 1 and cooperate with the first drive part 411. Thus, a linkage structure located inside the housing 1 is formed between the drive rod 41 and the bracket 31, enabling the driving action to be effectively transmitted in a relatively compact internal space.

[0077] The first linkage part 313 protrudes into the housing 1 from the first support part 311 and the second support part 312, allowing it to get closer to the area where the drive rod 41 is located. This shortens the force transmission path between the drive rod 41 and the bracket 31, and enables the first drive part 411 to act on the first linkage part 313. With this configuration, when the drive rod 41 moves relative to the housing 1 in a predetermined direction, such as to the right, the first drive parts 411 at both ends of the drive rod 41 can respectively push the corresponding first linkage parts 313 to move in the first direction (such as forward). This allows the first support part 311 and the second support part 312 to simultaneously obtain driving force in the first direction, ultimately driving the bracket 31 as a whole to move in the first direction. Since the driving force acts on the support parts on both sides, it helps to avoid problems such as bracket 31 deflection, jamming, or uneven force caused by applying force only on one side, improving the stability of the bracket 31 during forward and backward movement.

[0078] Specifically, please refer to Figures 2 to 5 As shown, the drive assembly 4 includes a drive member 42 for driving the drive rod 41 to move in the left and right direction relative to the housing 1. The first linkage part 313 and the first drive part 411 are provided with a first guide surface 61 that cooperates with each other. The first guide surface 61 is used to convert the displacement of the drive rod 41 in the left and right direction into the displacement of the bracket 31 in the first direction.

[0079] The drive component 42 can be a motor, servo motor, cylinder, or other actuator capable of outputting corresponding driving force. After the drive component 42 is connected to the drive rod 41, it can apply its own output motion to the drive rod 41, causing the drive rod 41 to move in the left-right direction within the housing 1. Since the drive rod 41 itself does not directly push the bracket 31 in the front-back direction, while the target motion direction of the bracket 31 is in the front-back direction, a first guide surface 61 is further provided between the first linkage part 313 and the first drive part 411 to establish a motion direction conversion relationship between the drive rod 41 and the bracket 31.

[0080] The first guide surface 61 can be constructed as an inclined surface, an arc surface, or other contour surface with guiding function. When the drive rod 41 moves relative to the housing 1 in the left and right direction under the action of the drive member 42, the first guide surface 61 on the first drive part 411 can abut against the first guide surface 61 on the first linkage part 313 and perform guiding cooperation, thereby converting the left and right displacement of the drive rod 41 into the first direction displacement of the bracket 31.

[0081] Based on the above structural relationship, the driving component 42 mainly provides driving force, the driving rod 41 mainly transmits motion and serves as an intermediate driving component, the first guide surface 61 between the first driving part 411 and the first linkage part 313 mainly plays the role of motion conversion and guiding force transmission, and the bracket 31 drives the roller brush 3 to move relative to the housing 1 in the first direction after receiving the converted first direction thrust.

[0082] The arrangement of the drive rod 41 moving in the left-right direction and the bracket 31 moving in the front-back direction is beneficial to improving the utilization of the internal space of the housing 1. Especially when the front-back space inside the floor brush is relatively limited but the length in the left-right direction is large, setting the drive rod 41 to move in the left-right direction makes it easier to arrange the drive component 42 and the drive rod 41 inside the housing 1; and by using the first guide surface 61 to change the direction of movement, a relatively compact transmission design can be achieved without changing the target direction of movement of the bracket 31.

[0083] Further, please refer to Figures 2 to 5 As shown, a first reset member 33 is provided between the first drive unit 411 and the limiting structure inside the housing 1. The first reset member 33 is used to provide a reset force to make the bracket 31 move in the opposite direction in the first direction. When the drive rod 41 moves in the opposite direction relative to the housing 1 in the predetermined direction, the first drive unit 411 releases the push on the first linkage unit 313 so that the bracket 31 can move in the opposite direction in the first direction under the action of the first reset member 33.

[0084] The first reset member 33 can be a spring, a magnet, or other elastic or magnetic component capable of providing a restoring force. When the drive rod 41 moves relative to the housing 1 in a predetermined direction, the first drive unit 411 pushes the first linkage unit 313 to move in the first direction, and the bracket 31 subsequently drives the roller brush 3 to move in the first direction. During this process, the first reset member 33 can be in a state of compression, tension, or magnetic action to generate a reset force that causes the bracket 31 to move in the opposite direction of the first direction. When the drive rod 41 moves relative to the housing 1 in the opposite direction of the predetermined direction, the first drive unit 411 releases the push on the first linkage unit 313, and the reset force originally provided by the first reset member 33 can then drive the bracket 31 to move in the opposite direction of the first direction.

[0085] Specifically, a forward pushing relationship is established between the first driving part 411 and the first linkage part 313. When the driving rod 41 moves in the opposite direction, the effective pushing cooperation between the first driving part 411 and the first linkage part 313 is released. At this time, the bracket 31 is no longer constrained by the first driving force from the first driving part 411 and can move back under the action of the reset force provided by the first reset member 33. Since the first linkage part 313 is connected to the first support part 311 and the second support part 312, the bracket 31 will drive the entire roller brush 3 to move in the opposite direction relative to the housing 1 in the first direction during the reset process, thereby causing the roller brush 3 to move closer to the scraping assembly 2 and reset.

[0086] In one exemplary embodiment, please refer to Figure 6 and Figure 7 As shown, the housing 1 is provided with a support wheel 5 that can move in the vertical direction relative to the housing 1; when the roller brush 3 switches from the separation position to the scraping position, the support wheel 5 moves upward; when the roller brush 3 switches from the scraping position to the separation position, the support wheel 5 moves downward and can support the surface to be cleaned, so as to reduce the pressure of the roller brush 3 on the surface to be cleaned.

[0087] The up-down direction can be understood as the direction perpendicular to the surface to be cleaned when the floor brush is performing cleaning operations. The direction pointing towards the surface to be cleaned is downward, and the opposite direction is upward. The support wheel 5 is preferably located at the bottom of the housing 1, that is, on the side facing the surface to be cleaned when the floor brush is performing cleaning operations. This allows the support wheel 5 to contact the surface to be cleaned and provide support after moving downward relative to the housing 1.

[0088] By setting up support wheels 5 that can move up and down on the housing 1, the floor brush can not only change the relationship between the roller brush 3 and the scraping component 2 and the suction port 11 in different cleaning modes, but also further change the force relationship between the roller brush 3 and the surface to be cleaned, thereby enabling the floor brush to have a more suitable working posture in dry cleaning mode and wet cleaning mode respectively.

[0089] Specifically, when the roller brush 3 switches from the separation position to the scraping position, the support wheel 5 moves upward and away from the surface to be cleaned. At this time, the support wheel 5 weakens or even eliminates its support for the bottom of the floor brush, and the roller brush 3 contacts the surface to be cleaned more and bears the reaction force, thereby increasing the pressure of the roller brush 3 on the surface to be cleaned and correspondingly increasing the contact force between the roller brush 3 and the surface to be cleaned.

[0090] In this configuration, the roller brush 3 can make more thorough contact with the surface being cleaned during the cleaning process, which is more effective in scrubbing and removing liquid stains, attached dirt, and wet residue. Simultaneously, when the roller brush 3 is in the scraping position, it can also form a relatively stable scraping relationship with the scraping component 2. Therefore, in this state, the internal working configuration of the floor brush is more suitable for wet cleaning. The upward movement of the support wheel 5 effectively reduces the auxiliary support on the housing 1, allowing the roller brush 3 to more fully undertake the cleaning action on the floor, which aligns with the requirement for greater contact force in wet cleaning mode.

[0091] When the roller brush 3 switches from the scraping position to the separation position, the support wheel 5 moves downward and can support the surface to be cleaned. After the support wheel 5 moves downward, a support relationship is established between the support wheel 5 and the surface to be cleaned, so that part of the load of the floor brush is borne by the support wheel 5. Since the support wheel 5 shares part of the pressure exerted by the floor brush on the surface to be cleaned, the pressure of the roller brush 3 on the surface to be cleaned is reduced accordingly.

[0092] In this situation, while the roller brush 3 can still move, disturb, or guide the dirt on the ground, it will not press against the surface to be cleaned with excessive pressure. This makes it easier for the floor brush to move smoothly and pass through particles in dry cleaning mode. Especially when the roller brush 3 has moved to the separation position and a large gap has formed between the roller brush 3 and the suction port 11, the support wheel 5 further supports the surface to be cleaned, making the overall working posture of the floor brush more inclined towards particle suction and passage, thus matching the usage requirements of dry cleaning mode.

[0093] The support wheel 5 and the roller brush 3 are linked and correspond to each other when their positions change. The roller brush 3 not only changes its spatial relationship with the scraping component 2 and the suction port 11 in different positions, but also simultaneously corresponds to the different vertical states of the support wheel 5. Through this arrangement, the floor brush changes not only the position of a single component during mode switching, but also simultaneously changes both the cleaning execution state and the ground support state, thereby further enhancing the adaptability of the same floor brush to different cleaning conditions.

[0094] In another embodiment, the support wheel 5 can also be driven independently according to the cleaning scenario, without being linked with the roller brush 3. That is, the motion control of the support wheel 5 can be established independently of the switching process of the roller brush 3 between the wiping position and the separation position, so that the floor brush can preferentially change the ground support state by adjusting the height of the support wheel 5 relative to the housing 1 in different cleaning scenarios.

[0095] Specifically, in wet cleaning scenarios, the support wheel 5 moves upward to move away from the surface to be cleaned; in dry cleaning scenarios, the support wheel 5 moves downward to support the surface to be cleaned. With this setting, the support wheel 5 no longer needs to change its position synchronously with the roller brush 3, but can independently select its movement state according to actual cleaning needs, thereby improving the flexibility of the floor brush in mode control.

[0096] In this embodiment, the support wheel 5 can still be located on the side of the housing 1 facing the surface to be cleaned, and can move vertically relative to the housing 1. Unlike the aforementioned linkage scheme of the roller brush 3, the support wheel 5 can be equipped with an independent drive structure or independent control logic, so that the lifting and lowering action of the support wheel 5 can directly respond to the switching needs of wet cleaning and dry cleaning scenarios, without requiring the movement of the roller brush 3 as a necessary prerequisite. With this setting, the support wheel 5, the housing 1, and the related components used to drive the movement of the support wheel 5 form an independent support adjustment unit. This support adjustment unit is mainly responsible for changing the force distribution state at the bottom of the floor brush, while the roller brush 3 can still maintain its original working position as needed, or be controlled separately by another drive structure. Thus, the different functional adjustment relationships inside the floor brush are further decoupled, which is beneficial for optimization according to the overall design requirements.

[0097] The requirements for the floor brush's contact with the floor differ between wet and dry cleaning scenarios, but these differences don't necessarily have to be triggered synchronously by switching the position of the roller brush 3. In some applications, the working position of the roller brush 3 may remain unchanged, or the roller brush 3 may already meet the corresponding cleaning needs, while the floor brush still wants to further optimize its contact with the floor by changing the position of the support wheel 5. Based on this consideration, allowing the support wheel 5 to be driven independently according to the cleaning scenario enables the floor brush to have more freedom in its control strategy.

[0098] For example, in wet cleaning scenarios, after the support wheel 5 moves upward and away from the surface to be cleaned, the bottom of the floor brush is more heavily contacted by the roller brush 3. The roller brush 3 presses more firmly against the surface, making it more effective at scrubbing and removing liquid stains, wet residue, and attached dirt. In dry cleaning scenarios, after the support wheel 5 moves downward and supports the surface to be cleaned, it can share some of the load on the bottom of the floor brush, reducing the pressure of the roller brush 3 on the surface and making the floor brush more suitable for handling particulate matter and cleaning dry dirt. For details, please refer to... Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, the drive rod 41 is configured to link with the support wheel 5 to drive the support wheel 5 to move in the vertical direction. That is, the drive rod 41 can be linked with both the bracket 31 and the support wheel 5 simultaneously, so as to drive the support wheel 5 to move in the vertical direction while the drive roller brush 3 switches between the scraping position and the separation position.

[0099] With the aforementioned structural form, the drive rod 41, while undertaking the driving function of switching the position of the roller brush 3, also becomes a joint linkage component of the drive bracket 31 and the support wheel 5, so that the position change of the roller brush 3 and the lifting change of the support wheel 5 can achieve coordinated action in the same drive link.

[0100] Specifically, the drive rod 41 is movably mounted on the housing 1 and can be displaced inside the housing 1 in a predetermined manner, transmitting corresponding driving forces to the bracket 31 and the support wheel 5 respectively. With this configuration, when the drive rod 41 moves in the direction that switches the roller brush 3 to the separation position, the drive rod 41 drives the bracket 31 to move, so that the roller brush 3 moves away from the suction port 11 relative to the housing 1; on the other hand, it drives the support wheel 5 to move downward, so that the support wheel 5 supports the surface to be cleaned, thereby reducing the pressure of the roller brush 3 on the surface to be cleaned.

[0101] Correspondingly, when the drive rod 41 moves in the opposite direction, it can simultaneously drive the bracket 31 back to its original position so that the roller brush 3 switches to the scraping position, and at the same time drive the support wheel 5 to move upward, so that the support wheel 5 moves away from the surface to be cleaned, thereby increasing the contact force between the roller brush 3 and the surface to be cleaned. Thus, the switching action of the roller brush 3 and the lifting action of the support wheel 5 can maintain a consistent timing and state correspondence.

[0102] By simultaneously linking the bracket 31 and the support wheel 5 with the same drive rod 41, the number of independent drive components 42 can be reduced, simplifying the internal mechanism layout of the floor brush and avoiding potential asynchronous actions when multiple drive sources are controlled separately. Since the position of the roller brush 3 and the support state of the support wheel 5 correspond to the working requirements of different cleaning modes, incorporating them into the same drive path makes the mode switching process more reliable.

[0103] There are several feasible ways to link the drive rod 41 and the support wheel 5. For example, the drive rod 41 can directly push the support wheel 5, causing the support wheel 5 to move up and down in the vertical direction under the guidance structure. The drive rod 41 can also convert its left and right displacement into the up and down displacement of the support wheel 5 through inclined surface engagement, arc surface engagement, or cam engagement. The drive rod 41 can also establish a motion transmission relationship with the support wheel 5 through a linkage mechanism, rocker arm mechanism, eccentric mechanism, cable mechanism, or gear and rack mechanism, so that the support wheel 5 can be driven to move up and down when the drive rod 41 moves.

[0104] In one exemplary embodiment, please refer to Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, the support wheel 5 is provided with a second linkage part 51, and the drive rod 41 is provided with a second drive part 412 corresponding to the second linkage part 51; when the drive rod 41 moves relative to the housing 1 in a predetermined direction, the second drive part 412 can push the second linkage part 51 to move downward.

[0105] When the drive rod 41 moves relative to the housing 1, it can transmit driving force to the support wheel 5 through the cooperation between the second drive part 412 and the second linkage part 51, thereby driving the support wheel 5 to move in the vertical direction. Specifically, the second linkage part 51 is provided on the support wheel 5 and can protrude from the bottom of the housing 1 into the housing 1, so that the second linkage part 51 enters the transmission area where the drive rod 41 is located, thereby enabling the second linkage part 51 to form a corresponding cooperation relationship with the second drive part 412 on the drive rod 41. In this way, although the support wheel 5 is located at the bottom of the housing 1 and faces the surface to be cleaned, its action input point is not limited to the outside of the housing 1, but extends into the inside of the housing 1 through the second linkage part 51.

[0106] When the drive rod 41 moves in a predetermined direction (e.g., to the right), the second drive unit 412 pushes the second linkage unit 51 downward, thereby giving the support wheel 5 a downward driving force and moving it closer to or supporting the surface to be cleaned. Based on this driving relationship, the lateral displacement of the drive rod 41 is converted into the downward movement of the support wheel 5, thereby realizing the active adjustment of the support wheel 5's support state on the bottom of the floor brush. Since the second linkage unit 51 is connected to the support wheel 5, after being pushed by the second drive unit 412, the second linkage unit 51 can directly transmit the corresponding force to the support wheel 5, causing the support wheel 5 to move downward along a predetermined trajectory. The second drive unit 412, as the part on the drive rod 41 that applies driving force to the support wheel 5, mainly undertakes the function of converting the movement of the drive rod 41 into a thrust on the second linkage unit 51.

[0107] The second drive unit 412 can be located in the middle region of the drive rod 41, which provides good spatial adaptability. Firstly, the support wheel 5 is typically located in the middle or near the middle region of the bottom of the floor brush. Since the drive rod 41 extends laterally within the housing 1, its middle region is closer to the position corresponding to the support wheel 5, facilitating a vertically corresponding engagement between the second drive unit 412 and the second linkage unit 51. Secondly, both ends of the drive rod 41 can also be used to establish linkages with structures related to the bracket 31. Arranging the second drive unit 412 in the middle region of the drive rod 41 allows for the formation of different drive areas facing the bracket 31 and the support wheel 5 on the same drive rod 41. Thus, the drive rod 41 can simultaneously drive different components on a single component, simplifying the transmission structure and ensuring synchronization between various linkage actions.

[0108] Specifically, please refer to Figures 6 to 8 As shown, the drive rod 41 can move in the left and right directions relative to the housing 1. The second linkage part 51 and the second drive part 412 are provided with a second guide surface 62 that cooperates with each other. The second guide surface 62 is used to convert the displacement of the drive rod 41 in the left and right directions into the downward displacement of the support wheel 5.

[0109] The second guide surface 62 can be an inclined surface, an arc surface, or other contoured surface with guiding and force transmission functions. By setting the second guide surface 62 between the second linkage part 51 and the second drive part 412, a guiding engagement relationship is formed between the drive rod 41 and the support wheel 5, enabling the conversion of movement direction. Specifically, when the drive rod 41 moves in the left-right direction relative to the housing 1, the second drive part 412 moves synchronously with the drive rod 41 and contacts and guides the second linkage part 51 through the second guide surface 62, so that the original displacement of the drive rod 41 in the left-right direction is gradually converted into the displacement of the second linkage part 51 in the up-down direction, thereby driving the support wheel 5 to move downward. As a result, the support wheel 5 can move downward relative to the housing 1 and finally support the surface to be cleaned, thus providing support for the bottom of the floor brush.

[0110] When the drive rod 41 moves left and right within the housing 1, the second drive unit 412 applies a downward force to the second linkage unit 51 via the second guide surface 62, causing the second linkage unit 51 and its connected support wheel 5 to move towards the surface to be cleaned under the guidance and constraint of the housing 1. With this configuration, the arrangement direction of the drive rod 41 and the target movement direction of the support wheel 5 can be different, thus making the utilization of the internal space of the floor brush more flexible. Especially when the left and right space inside the housing 1 is relatively ample, but the vertical transmission space is limited, the movement direction conversion via the second guide surface 62 facilitates the lifting and lowering of the support wheel 5 without increasing the complexity of the transmission stages.

[0111] Furthermore, multiple support wheels 5 and corresponding drive structures can be arranged along the extension direction of the drive rod 41. That is, along the length direction of the same drive rod 41, multiple second drive parts 412, second linkage parts 51, and second guide surfaces 62, respectively corresponding to the corresponding support wheels 5, can be provided so that the multiple support wheels 5 move synchronously or collaboratively when the drive rod 41 moves. With this arrangement, the multiple support wheels 5 can form distributed support at the bottom of the floor brush, which helps to improve the support stability of the floor brush on the surface to be cleaned, improve the force balance of the floor brush at different positions, and further enhance the overall support effect in dry cleaning mode.

[0112] In one exemplary embodiment, please refer to Figures 6 to 8 As shown, the support wheel 5 includes a base 52 and a roller 53 rotatably disposed on the base 52. The base 52 is hinged to the housing 1, and the hinge axis 54 between the base 52 and the housing 1 extends in the left-right direction, so that the support wheel 5 can swing up and down relative to the housing 1 around the hinge axis 54.

[0113] The support wheel 5 uses the base 52 as a swing bearing and the hinge shaft 54 ​​as a rotation center, forming a swingable mounting relationship on the housing 1. Specifically, the roller 53 is rotatably mounted on the base 52, allowing it to roll relative to the base 52 after contacting the surface to be cleaned, thereby reducing the sliding friction between the support wheel 5 and the surface to be cleaned. The base 52 serves as the mounting base for the roller 53, supporting it and connecting it to the housing 1. Thus, the rolling function of the roller 53 and the overall swing function of the support wheel 5 can be separated, which is beneficial for the support wheel 5 to move smoothly with the brush when grounded and for the support wheel 5 to reliably retract when not grounded.

[0114] The hinge shaft 54 ​​is configured to extend in the left-right direction, allowing the swing plane of the base 52 to be associated with the front-back and up-down directions of the floor brush. This enables the support wheel 5 to swing towards and away from the surface to be cleaned. Compared to a linear lifting method, this structure, which swings around the hinge shaft 54, facilitates the switching of the support wheel 5's position within the limited space at the bottom of the housing 1, and also simplifies the guiding relationship. When the support wheel 5 swings downward, the roller 53 gradually approaches and supports the surface to be cleaned; when the support wheel 5 swings upward, the roller 53 gradually moves away from the surface to be cleaned, thereby reducing or eliminating the support for the bottom of the floor brush.

[0115] Specifically, please refer to Figure 6 and Figure 7As shown, a second reset member 55 is provided between the base 52 and the housing 1. The second reset member 55 is used to provide a reset force to make the support wheel 5 swing upward. When the drive rod 41 moves in the opposite direction to the housing 1 in a predetermined direction, the second drive part 412 releases the push on the second linkage part 51 so that the support wheel 5 can swing upward under the action of the second reset member 55.

[0116] The second reset member 55 can be a spring, a magnet, or other elastic or magnetic component capable of providing a restoring force. The second reset member 55 is disposed between the base 52 and the housing 1, so that the swing relationship of the support wheel 5 relative to the housing 1 no longer depends solely on the active pushing of the second drive unit 412 on the second linkage unit 51, and also has the ability to automatically swing back after the external pushing force is released.

[0117] In other words, the second reset member 55 mainly serves to store and release the restoring force in this structure, enabling the support wheel 5 to swing upward and reset at an appropriate time after swinging downward to the supported state. Since the support wheel 5 includes a base 52 and a roller 53 rotatably mounted on the base 52, and the base 52 is hinged to the housing 1, the restoring force provided by the second reset member 55 is manifested as the restoring tendency of the base 52 to swing upward around the hinge axis 54, while the roller 53 moves away from the surface to be cleaned along with the base 52.

[0118] Specifically, when the drive rod 41 moves relative to the housing 1 in a predetermined direction, the second drive unit 412 pushes the second linkage unit 51 downward, thereby overcoming the restoring effect provided by the second reset member 55, causing the support wheel 5 to swing downward and support itself on the surface to be cleaned. During this process, the second reset member 55 is under pressure, tension, or magnetic action, and forms a restoring force that tends to make the support wheel 5 swing upward. When the drive rod 41 moves relative to the housing 1 in the opposite direction of the predetermined direction, the second drive unit 412 releases the push on the second linkage unit 51, and the support wheel 5 is no longer subject to the downward driving force from the second drive unit 412. At this time, the second reset member 55 can play its role, pushing the base 52 to swing upward around the hinge axis 54, causing the support wheel 5 to gradually move away from the surface to be cleaned. Thus, the support wheel 5 can automatically return to a state away from the surface to be cleaned after the drive is released, without having to completely rely on the drive rod 41 to apply a reverse active driving force to the support wheel 5.

[0119] In one exemplary embodiment, please refer to Figure 2 , Figures 3 to 9 As shown, the scraping assembly 2 includes a scraper 21 and a water sprayer 22. Both the scraper 21 and the water sprayer 22 are located above the suction port 11 and correspond to the outer peripheral surface of the brush body 32 of the roller brush 3. The scraper 21 is provided with a comb tooth 211. When the roller brush 3 is in the scraping position, the comb tooth 211 abuts against the brush body 32. The water sprayer 22 is provided with a water spray nozzle 221 facing the outer peripheral surface of the brush body 32. The water spray nozzle 221 is used to spray cleaning fluid onto the brush body 32.

[0120] The scraper 21 and the water spray component 22 can form a functional cooperative relationship around a specific area of ​​the outer peripheral surface of the brush body 32, so that the roller brush 3 can be wetted by cleaning fluid, loosened by dirt, and scraped on the surface sequentially or simultaneously along the path close to the suction port 11. Since both the scraper 21 and the water spray component 22 are located above the suction port 11, the liquid and dirt scraped off by the scraper 21 from the outer peripheral surface of the brush body 32, as well as the impurities carried up by the water spray component 22, can easily collect and be sucked away in the area where the suction port 11 is located, thereby improving the floor brush's ability to handle wet dirt and residual liquid.

[0121] The scraper 21 is provided with a comb-like part 211. When the roller brush 3 is in the scraping position, the comb-like part 211 abuts against the brush body 32. The comb-like part 211 can continuously scrape and comb the outer surface of the brush body 32 during the rotation of the brush body 32. On the one hand, the comb-like part 211 can scrape off liquid, sludge, debris and other residues attached to the surface of the brush body 32, reducing the accumulation of dirt on the surface of the brush body 32. On the other hand, the comb-like part 211 can also comb and disperse fibrous dirt and hair-like dirt on the brush body 32 to a certain extent, thereby improving the surface condition of the brush body 32 and maintaining the cleaning ability of the roller brush 3.

[0122] The water spray component 22 is provided with a water spray nozzle 221 facing the outer peripheral surface of the brush body 32. The water spray nozzle 221 is used to spray cleaning fluid onto the brush body 32, allowing the cleaning fluid to act on the surface of the brush body 32 and keeping the brush body 32 in a suitable moist state during rotation. This facilitates the softening, loosening, and removal of adhering dirt on the brush body 32. At the same time, after the surface of the brush body 32 is wetted by the cleaning fluid, it also enhances the scrubbing effect on wet or sticky stains when in contact with the surface to be cleaned. The cleaning fluid can be supplied to the water spray nozzle 221 either through the cleaning fluid supply module built into the floor brush or through an external cleaning fluid supply module.

[0123] This disclosure also provides a cleaning device, which includes a main unit and the aforementioned floor brush. The main unit is used to provide negative pressure to the floor brush. The floor brush is mainly arranged at the end of the cleaning device that is in direct contact with the surface to be cleaned, and can be used to disturb, lift, scrape, and guide dirt on the floor. The main unit mainly serves as a source of negative pressure, forming an air passage connection with the floor brush, so that the floor brush can suck up dirt located near the suction port with the help of the negative pressure provided by the main unit during operation.

[0124] When the floor brush is applied to the surface to be cleaned, the roller brush, scraping components and other related components in the floor brush can act on the dirt, causing the dirt to be moved, gathered, scraped away or carried away. Then, the negative pressure provided by the main unit acts on the suction port area through the air passage connected to the floor brush, thereby sucking in the dirt and transporting it further.

[0125] In one exemplary embodiment, the host is configured to provide a first negative pressure to the floor brush when the roller brush is in the disengaged position and a second negative pressure to the floor brush when the roller brush is in the wiping position, wherein the first negative pressure is greater than the second negative pressure.

[0126] The negative pressure provided by the main unit to the floor brush can be adjusted in accordance with the working position of the roller brush, so that the floor brush not only has different structural states in different cleaning modes, but also can obtain suction conditions that match the structural state.

[0127] Specifically, when the roller brush is in the disengaged position, the floor brush enters dry cleaning mode. At this time, a larger clearance is created between the roller brush and the suction port, which is more conducive to the passage of particles, especially larger particles, towards the suction port. In this state, the main unit provides a greater initial negative pressure to the floor brush, enabling a stronger suction effect in the suction port area. This improves the ability to remove dust, debris, and large particles, allowing the clearance and suction capabilities of dry cleaning mode to work in tandem.

[0128] When the roller brush is in the scraping position, the floor brush enters wet cleaning mode. In this mode, the roller brush and scraping assembly form at least partial contact, making the roller brush more suitable for scrubbing liquid stains, wet residue, and attached dirt on the surface to be cleaned. The scraping assembly then helps to scrape water and remove dirt from the brush surface. In this state, the main unit provides a smaller secondary negative pressure to the floor brush, relatively reducing the overall suction power. This prevents excessive suction from negatively impacting the wet cleaning effect between the roller brush and the surface, and also helps the roller brush maintain a more suitable working state for handling wet stains when working with the scraping assembly.

[0129] This disclosure also provides a method for controlling a floor brush, which can be applied to the aforementioned floor brush. The control method includes: in a wet cleaning scenario, controlling the roller brush to move to a scraping position, so that the roller brush and the scraping assembly at least partially abut against each other, so that the scraping assembly can scrape the roller brush; in a dry cleaning scenario, controlling the roller brush to move to a separation position, so that the roller brush and the scraping assembly separate and move away from the suction port, so that a gap is formed between the roller brush and the suction port that allows large particles to pass through.

[0130] In wet cleaning scenarios, the roller brush is moved to the scraping position so that it at least partially contacts the scraping component. At this time, the roller brush can form a stable scraping relationship with the scraping component during rotation, thereby enabling the scraping component to scrape away liquid, stains, and attached impurities from the brush surface. In dry cleaning scenarios, the roller brush is moved to the separation position so that the roller brush separates from the scraping component and moves away from the suction port, thereby creating a larger dirt passage space between the roller brush and the suction port, so that larger particulate dirt can pass through smoothly and enter the suction port.

[0131] The control method can be implemented by the control module controlling the drive component to switch the roller brush between the wiping position and the separation position according to the mode command input by the user; or the control module can automatically determine the current cleaning scene based on the sensor detection results and then control the roller brush to switch to the corresponding position.

[0132] In some implementations, users can select wet or dry cleaning modes via buttons, touch interface, knobs, voice commands, or applications. After receiving the corresponding command, the control module controls the drive assembly to move the drive rod, which in turn drives the bracket to move the roller brush back and forth.

[0133] In other implementations, the floor brush can also be automatically controlled based on dirt identification results. For example, when the floor is detected to mainly consist of liquid stains, semi-dry sticky dirt, or areas requiring cleaning with detergent, the brush is controlled to enter the scraping position. When the floor is detected to mainly consist of larger particles such as rice grains, beans, cookie crumbs, granular cat litter, or wads of paper, the brush is controlled to enter the separation position. Here, "large particles" can be understood as granular or lumpy dirt that requires a larger passage space to be successfully sucked in, compared to dirt such as dust, hair, and small debris that easily enter the suction port through small gaps.

[0134] In wet cleaning scenarios, after the roller brush moves to the swiping position, at least partial contact is formed between the roller brush and the swiping component. At this time, as the roller brush contacts and rotates with the surface to be cleaned, it can both scrub the stains on the floor and, during its return stroke, pass through the area where the swiping component is located, allowing the swiping component to scrape the outer periphery of the brush body.

[0135] For example, when a user needs to clean sauce, water stains, or other liquid stains on kitchen floor tiles, after controlling the roller brush to enter the scraping position, the brush body can pick up the stains during the wetting and rotation process, and the scraping component can scrape off the dirt adhering to the surface of the brush body in time, so that the brush body can maintain a good working condition.

[0136] In dry cleaning scenarios, after the roller brush moves to the separation position, it separates from the scraping component and moves away from the suction port. This increases the distance between the roller brush and the suction port, and correspondingly increases the passage space in front of the suction port, making it easier for larger particles of dirt to be drawn into the suction port smoothly by negative pressure.

[0137] For example, when a user is cleaning up scattered particles such as rice grains, beans, cookie crumbs, and nut crumbs under the dining table, if the roller brush is always in contact with the scraping component and closer to the suction port, larger particles are easily blocked between the roller brush and the suction port. However, when the roller brush is moved to the separation position, a larger gap is formed between the roller brush and the suction port, allowing these particles to pass through and be sucked in more smoothly.

[0138] This disclosure also provides another method for controlling a floor brush, which can be applied to the aforementioned floor brush. The control method includes: in a wet cleaning scenario, controlling the support wheel to move upward so that the support wheel can move away from the surface to be cleaned; in a dry cleaning scenario, controlling the support wheel to move downward so that the support wheel can support the surface to be cleaned, thereby reducing the pressure of the roller brush on the surface to be cleaned.

[0139] Specifically, in wet cleaning scenarios, the support wheels are moved upwards to move them away from the surface to be cleaned. In this case, the support wheels' support on the bottom of the brush is weakened or even eliminated, and the roller brush bears more contact and pressure on the surface to be cleaned, allowing it to exert a greater contact force. In dry cleaning scenarios, the support wheels are moved downwards to support the surface to be cleaned. In this case, the support wheels share some of the load on the bottom of the brush, and the pressure of the roller brush on the surface to be cleaned is reduced, making the brush more suitable for picking up particulate matter and cleaning dry dirt.

[0140] In some implementations, this control method allows the control module to drive the drive assembly upon receiving a mode switching command, thereby raising or lowering the support wheel relative to the housing. For example, a user can select a wet cleaning mode or a dry cleaning mode via buttons, knobs, a touch interface, voice commands, or an application. After recognizing the corresponding mode, the control module controls the drive rod to move relative to the housing, and through the linkage between the drive rod and the support wheel, drives the support wheel to move upward or downward.

[0141] In wet cleaning scenarios, floor brushes typically need to handle liquid stains, wet residue, and stubborn dirt. In these situations, it's desirable for the roller brush to have ample contact and pressure with the surface to be cleaned, allowing for more effective scrubbing, dirt removal, and cleaning. Therefore, in this scenario, controlling the support rollers to move upwards, away from the surface to be cleaned, essentially reduces the auxiliary support provided by the support rollers to the floor brush, allowing the roller brush to participate more fully in the cleaning process.

[0142] Conversely, in dry cleaning scenarios, floor brushes typically prioritize the passage and suction of particulate matter such as dust, debris, rice grains, beans, and cookie crumbs. If the roller brush consistently applies significant pressure to the surface, it not only increases the brush's resistance but may also hinder the smooth entry of large particles into the suction area. Therefore, in this scenario, controlling the support rollers to move downwards, allowing them to rest on the surface, reduces the pressure exerted by the roller brush. Essentially, this introduces an additional point of support to the ground, optimizing the floor brush's working posture and making it more suitable for dry cleaning.

[0143] For example, when users are cleaning bathroom floors, kitchen countertop tiles, or areas near tables where drinks have been spilled, there are often many liquid stains and sticky dirt on the floor. These areas are usually more suitable for wet cleaning. In this case, after the support wheels are moved upward, the roller brush can apply greater contact force to the surface to be cleaned, and together with the cleaning fluid and scraping components, the wet dirt can be scrubbed and removed more thoroughly.

[0144] For example, when a user cleans up crumbs, cat litter granules, beans, or rice grains on the living room floor, the surface mainly contains dry particulate matter. These areas are typically better suited for dry cleaning. In this case, by controlling the support wheels to move downwards and support the surface to be cleaned, the support wheels can distribute some of the pressure, reducing the pressure of the roller brush on the surface. This allows the floor brush to move more smoothly overall, and also makes it easier for particles to be sucked in through the front of the roller brush or the relevant suction area. In summary, the floor brush, cleaning device, and control method provided in this disclosure, by setting the roller brush to be switchable between a swiping position and a separation position relative to the housing, allows the same floor brush to adapt to both dry and wet cleaning modes. When the roller brush is in the scraping position, it is at least partially in contact with the scraping component, allowing the component to scrape the brush body. This improves the effectiveness of scraping water, removing dirt, and treating wet stains, making it more suitable for wet cleaning. When the roller brush is in the disengaged position, it separates from the scraping component and moves away from the suction port, creating a gap between the brush and the port that allows large particles to pass through. This enhances the ability to pass through and absorb large particles, making it more suitable for dry cleaning. Therefore, this invention allows for switching cleaning modes without changing different floor brushes, improving the adaptability of the floor brush to different types of dirt and cleaning needs, and enhancing ease of use.

[0145] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0146] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A floor brush, characterized in that, include: The housing has a suction port for absorbing waste; A scraping assembly is disposed in the housing; A roller brush is located in front of the suction port and is movably connected to the housing. The roller brush has a scraping position and a separation position. A drive component is used to drive the roller brush to switch between the scraping position and the separation position; When the roller brush is in the scraping position, the roller brush at least partially abuts against the scraping assembly, so that the scraping assembly can scrape the roller brush; When the roller brush is in the disengaged position, the roller brush is separated from the scraping assembly and moved away from the suction port, so that a gap is formed between the roller brush and the suction port that allows large particles to pass through.

2. The floor brush according to claim 1, characterized in that, The roller brush includes a support and a brush body. The support is movably connected to the housing in the front-back direction, and the brush body is rotatably connected to the support.

3. The floor brush according to claim 2, characterized in that, The drive assembly includes a drive rod movably disposed on the housing, the drive rod being configured to link with the bracket to drive the roller brush to move in a back-and-forth direction.

4. The floor brush according to claim 3, characterized in that, The bracket includes a first support portion and a second support portion respectively connected to the two axial ends of the brush body, and the first support portion and the second support portion are slidably connected to the housing.

5. The floor brush according to claim 4, characterized in that, The left and right side walls of the housing are respectively provided with a first sliding groove and a second sliding groove extending in the front-back direction. The first support part is slidably disposed in the first sliding groove, and the second support part is slidably disposed in the second sliding groove.

6. The floor brush according to claim 4, characterized in that, Both the first support portion and the second support portion are connected to a first linkage portion, and the drive rod is provided with a first drive portion corresponding to the first linkage portion; when the drive rod moves relative to the housing in a predetermined direction, the first drive portion can push the first linkage portion to move in a first direction, which is forward or backward.

7. The floor brush according to claim 6, characterized in that, The drive assembly includes a drive member for driving the drive rod to move in the left-right direction relative to the housing. The first linkage part and the first drive part are provided with a first guide surface that cooperates with each other. The first guide surface is used to convert the displacement of the drive rod in the left-right direction into the displacement of the bracket in the first direction.

8. The floor brush according to claim 6, characterized in that, The first drive unit is provided with a first reset member, which is used to provide a reset force to make the bracket move in the opposite direction in a first direction; when the drive rod moves in the opposite direction relative to the housing in a predetermined direction, the first drive unit releases the push on the first linkage unit so that the bracket can move in the opposite direction in the first direction under the action of the first reset member.

9. The floor brush according to claim 1 or 3, characterized in that, The housing is provided with a support wheel that can move vertically relative to the housing; when the roller brush switches from the separation position to the scraping position, the support wheel moves upward; when the roller brush switches from the scraping position to the separation position, the support wheel moves downward and can support the surface to be cleaned, so as to reduce the pressure of the roller brush on the surface to be cleaned.

10. The floor brush according to claim 9, characterized in that, The drive assembly includes a drive rod movably disposed in the housing, the drive rod being configured to link with the support wheel to drive the support wheel to move in the vertical direction.

11. The floor brush according to claim 10, characterized in that, The support wheel is provided with a second linkage part, and the drive rod is provided with a second drive part corresponding to the second linkage part; when the drive rod moves relative to the housing in a predetermined direction, the second drive part can push the second linkage part to move downward.

12. The floor brush according to claim 11, characterized in that, The drive rod is capable of moving in the left and right direction relative to the housing. The second linkage part and the second drive part are provided with a second guide surface that cooperates with each other. The second guide surface is used to convert the displacement of the drive rod in the left and right direction into the downward displacement of the support wheel.

13. The floor brush according to claim 12, characterized in that, The support wheel includes a base and a roller rotatably mounted on the base. The base is hinged to the housing, and the hinge axis between the base and the housing extends in the left-right direction, so that the support wheel can swing up and down relative to the housing about the hinge axis.

14. The floor brush according to claim 13, characterized in that, A second reset member is provided between the base and the housing, and the second reset member is used to provide a reset force to make the support wheel swing upward; When the drive rod moves in the opposite direction to the housing in a predetermined direction, the second drive unit releases the push on the second linkage unit, so that the support wheel can swing upward under the action of the second reset member.

15. The floor brush according to claim 1, characterized in that, The scraping assembly includes a scraper and a water sprayer. Both the scraper and the water sprayer are located above the suction port and correspond to the outer peripheral surface of the roller brush. The scraper has comb teeth, which abut against the brush body when the roller brush is in the scraping position. The water sprayer has nozzles facing the outer peripheral surface of the brush body, which are used to spray cleaning fluid onto the brush body.

16. A cleaning device, characterized in that, Includes a main unit and a floor brush according to any one of claims 1 to 15, wherein the main unit is used to provide negative pressure to the floor brush.

17. The cleaning equipment according to claim 16, characterized in that, The host is configured to provide a first negative pressure to the floor brush when the roller brush is in the disengaged position, and to provide a second negative pressure to the floor brush when the roller brush is in the wiping position, wherein the first negative pressure is greater than the second negative pressure.

18. A method for controlling a floor brush, characterized in that, The control method, applied to the floor brush according to any one of claims 1 to 15, comprises: In wet cleaning scenarios, control the roller brush to move to the scraping position so that the roller brush and the scraping component at least partially come into contact, so that the scraping component can scrape the roller brush; In dry cleaning scenarios, control the roller brush to move to the separation position, so that the roller brush is separated from the scraping component and away from the suction port, so that a gap is formed between the roller brush and the suction port that allows large particles to pass through.

19. A method for controlling a floor brush, characterized in that, The control method, applied to the floor brush according to any one of claims 9 to 15, comprises: In wet cleaning scenarios, control the support wheels to move upwards so that the support wheels can move away from the surface to be cleaned; In dry cleaning scenarios, control the support rollers to move downwards so that they can support the surface to be cleaned, thereby reducing the pressure of the roller brush on the surface to be cleaned.

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