Floor brush assembly, control method of floor brush assembly, and scrubber

Abstract

The application relates to a floor brush assembly, a control method of the floor brush assembly and a floor cleaning machine. The floor brush assembly comprises a shell, a rolling brush rotatably arranged in the shell, a first dirt scraping piece movably arranged in the shell and located at the front side of the rolling brush, and a second dirt scraping piece movably arranged in the shell. When the floor brush assembly retreats, the first dirt scraping piece is in a first cleaning position abutting against a surface to be cleaned, and the second dirt scraping piece is in a second suspension position. When the floor brush assembly advances, the first dirt scraping piece is switched to a first suspension position, the second dirt scraping piece is switched from the second suspension position to a second cleaning position and kept in the second cleaning position for a preset time and / or a preset distance, and then switched from the second cleaning position to the second suspension position. When the second dirt scraping piece is in the second cleaning position, at least part of the end portion in the extension direction of the first dirt scraping piece extends in the direction from the first dirt scraping piece to the rolling brush. The technical scheme provided by the application can improve the cleaning effect on the cleaning blind area of the end portion of the rolling brush.

Description

Technical Field

[0001] This application relates to the field of floor scrubbing machine technology, and in particular to floor brush components, control methods for floor brush components, and floor scrubbing machines. Background Technology

[0002] Floor scrubbers combine multiple functions such as water spraying, cleaning, and wastewater recycling. With their advantages of high cleaning efficiency and easy operation, they have been widely used in floor cleaning operations in various scenarios such as homes and offices.

[0003] To improve the cleaning effect of floor scrubbers, most existing floor scrubbers are equipped with both a roller brush and a scraper. The scraper is located in front of the roller brush. When the floor scrubber moves forward, the scraper separates from the surface to be cleaned; when the floor scrubber moves backward, the scraper contacts the surface to be cleaned to scrape off the water stains remaining after the roller brush has cleaned it.

[0004] However, when the floor scrubber reverses and turns or changes direction to clean adjacent areas, the water stains at the end of the squeegee are outside the coverage area of ​​the roller brush and cannot be cleaned by the roller brush, resulting in local water stains and affecting the user experience. Summary of the Invention

[0005] Therefore, it is necessary to provide a floor brush assembly, a control method for the floor brush assembly, and a floor scrubber to address the problem that water stains at the end of the squeegee cannot be cleaned by the roller brush when the floor scrubber reverses and turns or changes direction, resulting in local water stains.

[0006] In a first aspect, this application provides a floor brush component, which includes:

[0007] case;

[0008] A roller brush, rotatably mounted on the housing, is used to clean the surface to be cleaned;

[0009] The first scraping member is movably disposed in the housing and located in front of the roller brush. The first scraping member extends along the axial direction of the roller brush. The first scraping member has a first suspended position detached from the surface to be cleaned and a first cleaning position abutting against the surface to be cleaned.

[0010] The second scraper is movably disposed in the housing. The second scraper has a second suspended position detached from the surface to be cleaned and a second cleaning position abutting the surface to be cleaned. When the second scraper is in the second cleaning position, it is at least partially located at the end of the first scraper extending in the direction of extension and extends along the direction from the first scraper to the roller brush.

[0011] When the floor brush assembly moves backward, the first scraping component is in the first cleaning position and the second scraping component is in the second suspended position; when the floor brush assembly moves forward, the first scraping component switches from the first cleaning position to the first suspended position, and the second scraping component switches from the second suspended position to the second cleaning position and maintains the second cleaning position for a preset time and / or a preset distance before switching from the second cleaning position to the second suspended position.

[0012] In one embodiment, the first and second scraping components are linked. When the first scraping component switches from the first cleaning position to the first suspended position, the second scraping component can switch from the second suspended position to the second cleaning position, and then switch from the second cleaning position to the second suspended position.

[0013] In one embodiment, the floor brush assembly further includes:

[0014] The linkage component is movably disposed in the housing and is linked to the first and second scraping components respectively.

[0015] In one embodiment, the linkage is movably disposed in the housing along the extending direction of the first scraper, the first scraper is vertically disposed in the housing, and the linkage and the first scraper are in abutting engagement to drive the first scraper to rise or fall when the linkage moves.

[0016] In one embodiment, one of the first scraper and the linkage is provided with a first pressing groove that is at least partially inclined, and the other is provided with a first pressing part. The first pressing part is slidably or rollingly disposed in the first pressing groove so as to drive the first scraper to rise or fall when the linkage moves.

[0017] In one embodiment, the second scraper is vertically and vertically mounted on the housing, and the linkage is pressed against the second scraper to drive the second scraper to rise or fall when the linkage moves.

[0018] In one embodiment, one of the second scraper and the linkage is provided with a second pressing groove, and the other is provided with a second pressing part. The second pressing groove is V-shaped. If the second pressing groove is provided on the second scraper, the tip of the second pressing groove faces upward. If the second pressing groove is provided on the linkage, the tip of the second pressing groove faces downward. The second pressing part is slidably or rollably disposed in the second pressing groove so as to drive the second scraper to rise or fall when the linkage moves.

[0019] In one embodiment, the linkage has a first position and a second position. When the linkage is in the first position, the first scraping component is in a first suspended position; when the linkage is in the second position, the first scraping component is in a first clean position. The floor brush assembly further includes:

[0020] A reset element is disposed between the linkage element and the housing. The reset element is used to provide a force to the linkage element to switch from the second position to the first position.

[0021] Secondly, this application provides a floor scrubbing machine that includes the floor brush assembly of any of the above embodiments.

[0022] Thirdly, this application provides a control method for a floor brush assembly. The floor brush assembly includes a housing, a roller brush, a first scraping member, and a second scraping member. The roller brush is rotatably disposed in the housing. The first scraping member is movably disposed in the housing and located in front of the roller brush. The first scraping member has a first suspended position detached from the surface to be cleaned and a first cleaning position abutting against the surface to be cleaned. The second scraping member is movably disposed in the housing. The second scraping member has a second suspended position detached from the surface to be cleaned and a second cleaning position abutting against the surface to be cleaned. When the second scraping member is in the second cleaning position, it is at least partially located at the end of the first scraping member extending in the direction of extension and extends along the direction from the first scraping member to the roller brush. The control method for the floor brush assembly includes:

[0023] Detect the current operating status of the floor brush component, including:

[0024] When the floor brush assembly is detected to be retracting, the first scraping component is controlled to be in the first cleaning position, and the second scraping component is controlled to be in the second suspended position.

[0025] When the floor brush assembly is detected to be moving forward, the first scraper is controlled to switch from the first cleaning position to the first suspended position, and the second scraper is controlled to switch from the second suspended position to the second cleaning position. After maintaining the second cleaning position for a preset time and / or a preset distance, the second scraper is controlled to switch from the second cleaning position to the second suspended position.

[0026] In some embodiments, detecting the operating status of the floor brush assembly includes:

[0027] When the floor brush assembly is detected to be moving backward, a pre-detection phase is entered to predict whether the floor brush assembly will change direction and move forward. If it is predicted that the floor brush assembly will change direction and move forward, the second scraping component is switched from the second suspended position to the second cleaning position within a preset time period, so that when the floor brush assembly is at the starting point of moving forward, the second scraping component is in the second cleaning position.

[0028] The technical solution provided in this application allows the floor scrubber to continuously scrub the surface to be cleaned during movement. When reversing, the first scraper is in a first cleaning position and contacts the surface, scraping away any remaining water stains after the roller brush's cleaning. At this time, the second scraper is in a second suspended position, detached from the surface, preventing additional friction during reversal. When the floor scrubber switches to forward cleaning, the first scraper moves to the first suspended position and is lifted away from the surface, preventing the dirt from being pushed forward and spreading. Simultaneously, the second scraper moves from the second suspended position to the second cleaning position and remains there for a preset time or distance before moving back to the second suspended position. Specifically, when the floor scrubber reverses and then moves forward, and the forward and reverse paths form an angle, the roller brush's cleaning area cannot completely cover the area corresponding to the end of the first scraper's extension direction during reversal, easily creating a cleaning blind spot. In this application, because at least a portion of the second scraper is located outside the extending end of the first scraper, when the floor scrubber reverses direction and moves forward at an angle to the forward path, the second scraper can clean the blind spots of the roller brush. After a preset time or length has elapsed, the second scraper has cleaned the blind spots and then switches from the second cleaning position to the second suspended position to avoid increasing additional frictional resistance. This application, by incorporating the second scraper, improves the cleanliness of the surface to be cleaned. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the hidden cover of a floor brush assembly according to an embodiment of the present application.

[0030] Figure 2 This is a schematic diagram illustrating the state of the first and second scraping components when the linkage of the floor brush assembly is in the second position, as an embodiment of the present application.

[0031] Figure 3 This is a schematic diagram illustrating the state of the first and second scraping components when the linkage of the floor brush assembly is in the third position, as an embodiment of the present application.

[0032] Figure 4 The purpose of this application is to show, as an embodiment of the solution, the projection of the axis of the roller brush and the center line of the extension direction of the first scraper onto the surface to be cleaned when the first path and the second path have an angle between them, at the end of the first path.

[0033] Figure 5 This is a schematic diagram illustrating the state of the first and second scraping components when the linkage of the floor brush assembly is in the first position, as an embodiment of the present application.

[0034] Figure 6This is a schematic diagram of the structure of the second smudge scraper of a floor brush assembly according to an embodiment of the present application.

[0035] Figure 7 This is a schematic diagram of the housing of a floor brush assembly according to an embodiment of the present application.

[0036] Figure 8 This is a schematic diagram of the structure of the floor brush assembly housing and cover in one embodiment of the present application.

[0037] Explanation of reference numerals in the attached figures:

[0038] 10. Housing; 11. Second arc-shaped plate; 12. Limiting strip; 101. First limiting groove; 102. Second limiting groove; 103. Third limiting groove;

[0039] 20. Roller brush;

[0040] 30. First scraping component; 301. First pressing part;

[0041] 31. First connecting plate; 32. Protruding plate; 33. First scraper;

[0042] 40. Second scraper; 401. Second pressing groove; 4011. First inclined groove section; 4012. Second inclined groove section;

[0043] 41. Second connecting plate; 42. Connecting rod; 43. Second scraper; 431. First section; 432. Second section;

[0044] 50. Linkage component; 501. First pressing groove; 502. Second pressing part; 51. First arc-shaped plate; 52. Protrusion;

[0045] 60. Reset component;

[0046] 70. Cover. Detailed Implementation

[0047] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0048] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0049] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0050] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0051] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0052] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If 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. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0053] See Figures 1 to 3 This application provides a floor brush assembly, which includes a housing 10, a roller brush 20, a first scraper 30, and a second scraper 40. The roller brush 20 is rotatably disposed on the housing 10 for cleaning the surface to be cleaned. The first scraper 30 is movably disposed on the housing 10 and located in front of the roller brush 20. The first scraper 30 extends along the axial direction of the roller brush 20 and has a first suspended position detached from the surface to be cleaned and a first cleaning position abutting against the surface to be cleaned. The second scraper 40 is movably disposed on the housing 10 and has a second suspended position detached from the surface to be cleaned and a second cleaning position abutting against the surface to be cleaned. In the second cleaning position of the surface, when the second scraper 40 is in the second cleaning position, at least a portion of the second scraper 40 is located at the end of the first scraper 30 extending in the direction of extension, and extends along the direction from the first scraper 30 to the roller brush 20; when the floor brush assembly retracts, the first scraper 30 is in the first cleaning position, and the second scraper 40 is in the second suspended position; when the floor brush assembly moves forward, the first scraper 30 switches from the first cleaning position to the first suspended position, and the second scraper 40 switches from the second suspended position to the second cleaning position and, after maintaining the second cleaning position for a preset time and / or a preset distance, switches from the second cleaning position to the second suspended position. Wherein, Figure 2 This diagram illustrates the state structure of the first scraper 30 and the second scraper 40 as the floor brush assembly retracts. Figure 3 This diagram illustrates the state of the floor brush assembly when the first scraper 30 is in a first suspended position and the second scraper 40 is in a second clean position as the assembly moves forward.

[0054] With the technical solution provided in this application, when the floor scrubber moves, the roller brush 20 continuously rolls and scrubs the surface to be cleaned. When reversing, the first scraper 30 is in the first cleaning position and abuts against the surface to be cleaned to scrape off the water stains remaining after the roller brush 20 has scrubbed. At this time, the second scraper 40 is in the second suspended position and is detached from the surface to be cleaned, so as to avoid increasing the friction when the floor scrubber moves backward. When the floor scrubber switches to forward cleaning, the first scraper 30 switches to the first suspended position and is lifted to detach from the surface to be cleaned, so as to avoid pushing the dirt on the ground forward and spreading it during the forward movement. At the same time, the second scraper 40 switches from the second suspended position to the second cleaning position and holds the second cleaning position for a preset time or preset length, and then the second scraper 40 switches from the second cleaning position to the second suspended position. Specifically, when the floor scrubber reverses and then moves forward, forming an angle between the forward and reverse paths, the scrubbing area of ​​the roller brush 20 cannot completely cover the area corresponding to the end of the first scraper 30 extending in the reverse direction, easily forming a scrubbing blind spot. In this application, since at least a portion of the second scraper 40 is located at the end of the first scraper 30 extending in the direction from the first scraper 30 to the roller brush 20, when the floor scrubber reverses and then moves forward, and there is an angle between the forward and reverse paths, the second scraper 40 can clean the scrubbing blind spot of the roller brush 20. After a preset time or preset length, the second scraper 40 can clean the scrubbing blind spot, and then the second scraper 40 switches from the second cleaning position to the second suspended position to avoid increasing additional frictional resistance. This application, by setting the second scraper 40, can improve the cleanliness of the surface to be cleaned.

[0055] It should be noted that when the floor scrubber is working, the direction from back to front is from the roller brush 20 to the first scraper 30. When the floor scrubber moves forward, it moves from the roller brush 20 to the first scraper 30. When the floor scrubber moves backward, it moves from the first scraper 30 to the roller brush 20.

[0056] For example, see Figure 4V1 is the direction in which the floor scrubber moves backward along the first path, V2 is the direction in which the floor scrubber moves forward along the second path, straight line L1 is the projection of the axis of the roller brush 20 onto the surface to be cleaned when the floor scrubber is at the end of the first path, which is also the beginning of the second path, straight line L2 is the projection of the center line of the extension direction of the first scraper 30 onto the surface to be cleaned when the floor scrubber is at the end of the first path, and distance a is the preset distance that the scrubber travels when it moves forward from the second suspended position to the second cleaning position and maintains the second cleaning position for a preset time. Without the second scraper 40, when the floor scrubber moves forward and the extension direction of the second path forms an angle with the extension direction of the first path, that is, when the floor scrubber moves backward to the end point and does not return along the same path, the area within a distance b at the end of the extension direction of the first scraper 30 is a blind spot for the roller brush 20 to clean, and water stains in this area cannot be scraped off. However, after the second scraper 40 is installed, the second scraper 40 is located outside the end of the extension direction of the first scraper 30. When the floor scrubber moves forward along the second path which forms an angle with the first path, the second scraper 40 can scrape off this part of the area.

[0057] Understandably, after the floor scrubber retreats to the end point along the first path, whether it returns along the same path if the second path coincides with the first path, or changes direction if the second path forms an angle with the first path, the second scraper 40 and the first scraper 30 perform the above actions.

[0058] In some embodiments, the first scraper 30 and the second scraper 40 are linked. When the first scraper 30 switches from a first cleaning position to a first suspended position, the second scraper 40 can switch from a second suspended position to a second cleaning position, and then back to a second suspended position. For example, when the floor scrubber reverses along a first path and switches to a second path, the first scraper 30 switches from the first cleaning position to the first suspended position, while the second scraper 40 switches from the second suspended position to the second cleaning position and maintains it in the second cleaning position for a preset time and / or a preset distance. That is, in the initial section of the second path, the second scraper 40 can maintain the second cleaning position to clean areas that the end of the roller brush 20 cannot cover when changing direction. After exceeding the preset time or preset distance, that is, after crossing the initial section of the second path, the second scraper 40 is in the second suspended position. By linking the first scraper 30 and the second scraper 40, synchronous action of the first scraper 30 and the second scraper 40 can be achieved, which helps to simplify the structure and improve the synchronicity of position switching. in Figure 5 This diagram shows the state of the second scraper 40 in the second suspended position and the first scraper 30 in the first suspended position.

[0059] In some embodiments, the floor brush assembly further includes a linkage 50, which is movably disposed in the housing 10 and is linked to the first scraping component 30 and the second scraping component 40 respectively. By setting a single linkage 50 and controlling its movement, the positions of the first scraping component 30 and the second scraping component 40 can be adjusted simultaneously. That is, the same linkage 50 is linked to both the first scraping component 30 and the second scraping component 40, which helps to simplify the structure of the device. Furthermore, it eliminates the need for a direct linkage between the first scraping component 30 and the second scraping component 40, facilitating the coordinated control of the two components.

[0060] In some embodiments, the first scraper 30 is vertically and movably mounted on the housing 10, and the linkage 50 is movably mounted on the housing 10 along the extending direction of the first scraper 30. The linkage 50 is in abutting engagement with the first scraper 30 to drive the first scraper 30 to rise or fall when the linkage 50 moves. Because the linkage 50 and the first scraper 30 are in abutting engagement, no additional transmission structure is required, resulting in a simple structure. Figure 1 The Y direction is the extension direction of the first scraper 30, the X direction is the front-to-back direction, and the Z direction is the height direction.

[0061] For example, when the linkage 50 moves along the first direction (the extending direction of the first scraper 30), the first scraper 30 rises. When the linkage 50 moves along the second direction opposite to the first direction, the first scraper 30 falls. By setting the linkage 50 to reciprocate along the extending direction of the first scraper 30, and driving the first scraper 30 to rise or fall during the movement, the structure is simple and the operation is convenient.

[0062] In some embodiments, one of the first scraping member 30 and the linkage member 50 is provided with a first pressing groove 501 that is at least partially inclined, and the other is provided with a first pressing part 301. The first pressing part 301 is slidably or rollably disposed in the first pressing groove 501 so as to drive the first scraping member 30 to rise or fall when the linkage member 50 moves. The arrangement of the first pressing groove 501 and the first pressing part 301 results in a simple structure, which is easy to manufacture and easy to implement.

[0063] See Figure 2 , Figure 3 and Figure 5 The first direction is from left to right. The first pressing groove 501 is provided on the linkage 50, and the first pressing part 301 is provided on the first scraping part 30. The first pressing groove 501 is completely inclined, and its top tip is inclined to the right. See reference. Figure 5When the linkage 50 is in the first position, the first scraper 30 is in the first suspended position. When the linkage 50 is in the second position, the first scraper 30 is in the first clean position. As the linkage 50 moves from the first position to the second position, the first scraper 30 gradually descends. The second position is located to the right of the first position.

[0064] In some embodiments, the second scraper 40 is vertically and elliptically mounted on the housing 10, and the linkage 50 is in abutting engagement with the second scraper 40 to drive the second scraper 40 to rise and fall when the linkage 50 moves. Driving the second scraper 40 through the abutting engagement of the linkage 50 with the second scraper 40 eliminates the need for an additional transmission structure, resulting in a simple structure.

[0065] For example, see Figure 5 Linkage component 50 is in the first position, see reference. Figure 2 When the linkage 50 is in the second position, the second scraping component 40 is in the second suspended position. (See reference...) Figure 3 When the linkage 50 is in the third position, the second scraping component 40 is in the second cleaning position, wherein along the first direction, the third position is located between the first position and the second position. Thus, when the floor brush assembly moves backward along the first path to its endpoint and then forwards along the second path, the second scraping component 40 is in the second cleaning position at the beginning of the second path, and in the second suspended position after passing the beginning of the second path; furthermore, when the first scraping component 30 is in the first suspended position while the first path is retracting, the second scraping component 40 is in the second suspended position.

[0066] In some embodiments, one of the second scraper 40 and the linkage 50 is provided with a second pressing groove 401, and the other is provided with a second pressing part 502. The second pressing groove 401 is V-shaped. If the second pressing groove 401 is provided on the second scraper 40, the tip of the second pressing groove 401 faces upward; if the second pressing groove 401 is provided on the linkage 50, the tip of the second pressing groove 401 faces downward. The second pressing part 502 is slidably or rollably disposed within the second pressing groove 401 so as to drive the second scraper 40 to rise and fall when the linkage 50 moves. The arrangement of the second pressing part 502 and the second pressing groove 401 results in a simple structure and facilitates manufacturing. Furthermore, the second pressing groove 401 is set in a V shape, so that the second pressing groove 401 has a tip, so that when the second pressing part 502 is at the tip of the second pressing groove 401, the second scraper 40 is in the second clean position, and when the second pressing part 502 is at the two ends of the second pressing groove 401 away from the tip, the second scraper 40 is in the second suspended position.

[0067] See Figure 2 , Figure 3 , Figure 5 and Figure 6 A second pressing groove 401 is disposed on the second scraper 40. The second pressing groove 401 includes a first inclined groove segment 4011 and a second inclined groove segment 4012 that are sequentially connected to each other along a first direction. The top end of the first inclined groove segment 4011 is inclined to the right, and the top end of the second inclined groove segment 4012 is inclined to the left, so that the top ends of the first inclined groove segment 4011 and the second inclined groove segment 4012 that are connected to each other form a sharp point. The inclination direction of the first inclined groove segment 4011 is the same as the inclination direction of the first pressing groove 501, and the inclination direction of the second inclined groove segment 4012 is opposite to the inclination direction of the first pressing groove 501. When the linkage 50 is in the third position, the second pressing part 502 is located at the tip of the second pressing groove 401.

[0068] See Figure 5 When the linkage 50 is in the first position, the first scraping component 30 is in the first suspended position. When the linkage 50 is in the second position, refer to [reference needed]. Figure 2 The first scraper 30 is in the first cleaning position, combined with Figure 1 The floor brush assembly also includes a reset member 60, which is disposed between the linkage member 50 and the housing 10. The reset member 60 provides a force to the linkage member 50 to switch from the second position to the first position. When the linkage member 50 is in the first position, the first scraper 30 is in the first suspended position, and the second scraper 40 is in the second suspended position. For most of the time during the operation of the floor scrubber, the linkage member 50 is in the first position. By setting the reset member 60, the stability of the linkage member 50 when it is in the first position can be improved. At the same time, when the linkage member 50 moves from the second position to the third position, the reset member 60 can improve the stability of the second pressing part 502 and the second pressing groove 401, and improve the smoothness of the second scraper 40 switching from the second suspended position to the second cleaning position.

[0069] In some embodiments, the floor brush assembly further includes a drive unit (not shown) and a status detection unit that are communicatively connected to each other. The drive unit is disposed on the housing 10 and is drivenly connected to the linkage 50 to drive the linkage 50 to reciprocate. Exemplarily, the drive unit includes a servo motor. The status detection unit is used to collect the operating status parameters of the floor brush assembly and, based on the collected operating status parameters, predict whether the floor brush assembly has completed the backward movement along the first path and whether a forward movement along the second path has occurred. If it is predicted that the floor brush assembly has completed the backward movement along the first path and a forward movement along the second path has occurred, the drive unit drives the linkage 50 to move from the second position to the first position before the end of the backward movement along the first path, so that at the end of the first path, which is also the beginning of the second path, the linkage 50 drives the second scraping component 40 to switch from the second suspended position to the second cleaning position.

[0070] In some embodiments, during the process of the drive member driving the linkage member 50 to move from the second position to the first position, when the linkage member 50 moves to the third position, the drive member is in a stopped driving state and is maintained for a preset time, that is, the second scraping member 40 is kept in the second cleaning position for a preset time. During this period, the floor scrubber moves in the starting section of the second path.

[0071] See Figure 5 In some embodiments, the first scraping member 30 includes a first connecting plate 31, a protruding plate 32, and a first scraper 33. The first connecting plate 31 extends along a first direction Y and is arranged along a vertical direction Z. The protruding plate 32 is disposed at the bottom end of the first connecting plate 31 and is located in front of the first connecting plate 31, extending along the first direction. The first scraper 33 is disposed on the front side of the protruding plate 32, and the bottom end of the first scraper 33 protrudes downward beyond the protruding plate 32, while the end of the first scraper 33 extending in the direction of extension protrudes outward beyond the ends of the protruding plate 32 and the first connecting plate 31 extending in the direction of extension. Figure 6 The second scraping component 40 includes a second connecting plate 41, a connecting rod 42, and a second scraper 43. The second connecting plate 41 is parallel to the first connecting plate 31 and is located above the end of the first connecting plate 31 in the extending direction. The connecting rod 42 extends vertically, with its top end connected to the first connecting plate 31 and its bottom end connected to the second scraper 43. The connecting rod 42 is located behind the first connecting plate 31. The second scraper 43 includes a first segment 431 and a second segment 432 connected at an angle. The first segment 431 is located on one side of the extending direction of the first connecting plate 31 and the protruding plate 32, and the second segment 432 is located behind the first connecting plate 31 and the protruding plate 32 in the direction from back to front. The projection of the first segment 431 is located on the end of the first scraper 33 protruding from the first connecting plate 31 and the protruding plate 32, so that when viewed from the front, the second scraper 43 is not exposed outside the first scraper 33 in the extending direction of the first scraper 33. The above configuration ensures that the first scraper 30 and the second scraper 40 do not interfere with each other when they rise and fall, and also contributes to the compactness of the device structure.

[0072] In some embodiments, the linkage 50 includes a first arc-shaped plate 51 and two protrusions 52. The first arc-shaped plate 51 extends along a first direction and protrudes forward. The first arc-shaped plate 51 is located between two second scraping members 40, and the bottom end of the first arc-shaped plate 51 is located in front of the linkage 50. The two protrusions 52 are respectively disposed at both ends of the extending direction of the first arc-shaped plate 51 and are respectively located behind the two second connecting plates 41. A second pressing part 502 is provided on the front side of each protrusion 52. By configuring the linkage 50 in the above form, the structural compactness of the device can be further improved.

[0073] See Figure 1 , Figure 5 and Figure 7In some embodiments, the housing 10 includes a second arc-shaped plate 11 and a limiting strip 12. A first arc-shaped plate 51 is located in front of and coaxial with the second arc-shaped plate 11, and the second arc-shaped plate 11 is located in front of and coaxial with the roller brush 20. The limiting strip 12 is located in front of the second arc-shaped plate 11, extends along a first direction, and both ends of the limiting strip 12 in the extension direction are connected to both ends of the second arc-shaped plate 11 in the extension direction. A first limiting groove 101 is defined between the limiting strip 12 and the second arc-shaped plate 11. At least a portion of the first scraping member 30 passes through the first limiting groove 101 and is limited and engaged with the first limiting groove 101. For example, at least a portion of the first connecting plate 31 passes through the first limiting groove 101 and is limited and engaged with the first limiting groove 101 to improve the stability of the lifting and lowering of the first scraping member 30.

[0074] In some embodiments, the limiting strip 12 is provided with a second limiting groove 102, or the limiting strip 12 and the front side of the second arc plate 11 define a second limiting groove 102. The second limiting groove 102 extends along the first direction and has an opening at the top. The second limiting groove 102 is used to limit and cooperate with the linkage member 50 to improve the smoothness of the linkage member 50 moving along the first direction.

[0075] In some embodiments, a third limiting groove 103 is provided on the second arc plate 11. The third limiting groove 103 penetrates the second arc plate 11 along the height direction. The second scraper 40 penetrates the third limiting groove 103 and is limited and cooperates with the third limiting groove 103 to improve the smoothness of the lifting and lowering of the second scraper 40.

[0076] See Figure 5 and Figure 8 In some embodiments, when the first scraper 30 is in a first suspended position and the second scraper 40 is in a second suspended position, the first scraper 33 is located below the limiting strip 12, and the second scraper 43 is located below the limiting strip 12. The floor brush assembly also includes a cover 70, which is disposed on the front side of the housing 10. Exemplarily, it is disposed on the front side of the second arc-shaped plate 11 and above the limiting strip 12, so as to jointly protect part of the linkage 50, part of the second scraper 40, and part of the first scraper 30 together with the second arc-shaped plate 11.

[0077] Secondly, this application provides a floor scrubbing machine that includes the floor brush assembly of any of the above embodiments.

[0078] Thirdly, this application provides a control method for a floor brush assembly, which can control the floor brush assembly of any of the above embodiments. The floor brush assembly includes a housing 10, a roller brush 20, a first scraping member 30, and a second scraping member 40. The roller brush 20 is rotatably disposed on the housing 10. The first scraping member 30 is movably disposed on the housing 10 and located in front of the roller brush 20. The first scraping member 30 has a first suspended position detached from the surface to be cleaned and a first cleaning position abutting against the surface to be cleaned. The second scraping member 40 is movably disposed on the housing 10. The second scraping member 40 has a second suspended position detached from the surface to be cleaned and a second cleaning position abutting against the surface to be cleaned. When the second scraping member 40 is in the second cleaning position, at least a portion of the second scraping member 40 is located outside the extending end of the first scraping member 30 and extends along the direction from the first scraping member 30 to the roller brush 20. The control method for the floor brush assembly includes:

[0079] Detect the current operating status of the floor brush component, including:

[0080] When the floor brush assembly is detected to be retracting, the first scraping component 30 is controlled to be in the first cleaning position, and the second scraping component 40 is controlled to be in the second suspended position.

[0081] When the floor brush assembly is detected to be moving forward, the first scraper 30 is controlled to switch from the first cleaning position to the first suspended position, and the second scraper 40 is controlled to switch from the second suspended position to the second cleaning position. After maintaining the second cleaning position for a preset time and / or a preset distance, the second scraper 40 is controlled to switch from the second cleaning position to the second suspended position.

[0082] In some embodiments, detecting the operating status of the floor brush assembly further includes:

[0083] When the reversal of the floor brush assembly is detected, a pre-detection phase is initiated to predict whether the floor brush assembly will change direction and move forward. If it is predicted that the floor brush assembly will soon change direction and move forward, the second scraping component 40 is switched from the second suspended position to the second cleaning position within a preset time period, so that the second scraping component 40 is in the second cleaning position at the end of the reversal. In other words, at the starting point of the forward movement, the second scraping component 40 is in the second cleaning position, meaning that the second scraping component 40 can respond in advance. At the instant the reversal speed reaches 0, the second scraping component 40 has already come into contact with the surface to be cleaned, improving the cleaning effect.

[0084] Understandably, the floor brush assembly detects and predicts whether it will change direction using a status detection component, and drives the first and second scraping components 30 and 40 to rise and fall via the drive and linkage components 50. This solution does not limit how it predicts whether the floor brush assembly will change direction; it can identify deceleration trends by monitoring changes in the speed and acceleration of the floor brush assembly.

[0085] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0086] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A floor brush assembly, characterized in that, include: Shell (10); A roller brush (20) is rotatably disposed on the housing (10) to clean the surface to be cleaned; The first scraping member (30) is movably disposed in the housing (10) and located in front of the roller brush (20). The first scraping member (30) extends along the axial direction of the roller brush (20). The first scraping member (30) has a first suspended position detached from the surface to be cleaned and a first cleaning position abutting against the surface to be cleaned. The second scraper (40) is movably disposed in the housing (10). The second scraper (40) has a second suspended position detached from the surface to be cleaned and a second cleaning position abutting the surface to be cleaned. When the second scraper (40) is in the second cleaning position, at least a portion of the second scraper (40) is located at the end of the first scraper (30) in the extending direction and extends along the direction from the first scraper (30) to the roller brush (20). When the floor brush assembly moves backward, the first scraper (30) is in the first cleaning position and the second scraper (40) is in the second suspended position; when the floor brush assembly moves forward, the first scraper (30) switches from the first cleaning position to the first suspended position, and the second scraper (40) switches from the second suspended position to the second cleaning position and, after maintaining the second cleaning position for a preset time and / or a preset distance, switches from the second cleaning position to the second suspended position.

2. The floor brush assembly according to claim 1, characterized in that, The first scraper (30) and the second scraper (40) are linked. When the first scraper (30) switches from the first cleaning position to the first suspended position, the second scraper (40) can switch from the second suspended position to the second cleaning position, and then switch from the second cleaning position to the second suspended position.

3. The floor brush assembly according to claim 2, characterized in that, The floor brush assembly also includes: A linkage component (50) is movably disposed in the housing (10), and the linkage component (50) is linked to the first scraper component (30) and the second scraper component (40) respectively.

4. The floor brush assembly according to claim 3, characterized in that, The linkage (50) is movably disposed on the housing (10) along the extension direction of the first scraper (30), and the first scraper (30) is displaced and raised on the housing (10). The linkage (50) abuts against the first scraper (30) to drive the first scraper (30) to rise and fall when the linkage (50) moves.

5. The floor brush assembly according to claim 4, characterized in that, One of the first scraper (30) and the linkage (50) is provided with a first pressure groove (501) that is at least partially inclined, and the other is provided with a first pressure part (301). The first pressure part (301) is slidably or rollingly disposed in the first pressure groove (501) so as to drive the first scraper (30) to rise and fall when the linkage (50) moves.

6. The floor brush assembly according to claim 4, characterized in that, The second scraper (40) is vertically and vertically disposed on the housing (10), and the linkage (50) is in abutting cooperation with the second scraper (40) to drive the second scraper (40) to rise or fall when the linkage (50) moves.

7. The floor brush assembly according to claim 6, characterized in that, One of the second scraper (40) and the linkage (50) is provided with a second pressing groove (401), and the other is provided with a second pressing part (502). The second pressing groove (401) is V-shaped. If the second pressing groove (401) is provided on the second scraper (40), the tip of the second pressing groove (401) faces upward. If the second pressing groove (401) is provided on the linkage (50), the tip of the second pressing groove (401) faces downward. The second pressing part (502) slides or rolls in the second pressing groove (401) so as to drive the second scraper (40) to rise or fall when the linkage (50) moves.

8. The floor brush assembly according to claim 3, characterized in that, The linkage (50) has a first position and a second position. When the linkage (50) is in the first position, the first scraping component (30) is in the first suspended position. When the linkage (50) is in the second position, the first scraping component (30) is in the first cleaning position. The floor brush assembly further includes: A reset member (60) is disposed between the linkage member (50) and the housing (10), and the reset member (60) is used to provide the linkage member (50) with a force to switch from the second position to the first position.

9. A floor scrubbing machine, characterized in that, The floor brush assembly included in any one of claims 1 to 8.

10. A control method for a floor brush assembly, characterized in that, The floor brush assembly includes a housing (10), a roller brush (20), a first scraper (30), and a second scraper (40). The roller brush (20) is rotatably disposed on the housing (10). The first scraper (30) is movably disposed on the housing (10) and located in front of the roller brush (20). The first scraper (30) has a first suspended position detached from the surface to be cleaned and a first cleaning position abutting against the surface to be cleaned. The second scraper (40) is movably disposed on the housing (10). The second scraper (40) has a second suspended position detached from the surface to be cleaned and a second cleaning position abutting against the surface to be cleaned. When the second scraper (40) is in the second cleaning position, at least a portion of the second scraper (40) is located outside the end of the first scraper (30) extending in the direction of extension and extends along the direction from the first scraper (30) to the roller brush (20). The control method of the floor brush assembly includes: The current operating status of the floor brush assembly is detected, wherein: When the retraction of the floor brush assembly is detected, the first scraper (30) is controlled to be in the first cleaning position, and the second scraper (40) is controlled to be in the second suspended position; When the floor brush assembly is detected to be moving forward, the first scraper (30) is controlled to switch from the first cleaning position to the first suspended position, and the second scraper (40) is controlled to switch from the second suspended position to the second cleaning position. After maintaining the second cleaning position for a preset time and / or a preset distance, the second scraper (40) is controlled to switch from the second cleaning position to the second suspended position.

11. The control method for the floor brush assembly according to claim 10, characterized in that, Detecting the operating status of the floor brush assembly includes: When the floor brush assembly is detected to be moving backward, a pre-detection phase is entered to predict whether the floor brush assembly will change direction and move forward. If it is predicted that the floor brush assembly will change direction and move forward, the second scraping component (40) is switched from the second suspended position to the second cleaning position within a preset time period, so that when the floor brush assembly is at the starting point of moving forward, the second scraping component (40) is in the second cleaning position.

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