Floor brush and floor washing machine

Abstract

The invention relates to a floor brush and a floor scrubber, and the floor brush comprises a housing which is provided with a first end and a second end; the rolling brush is rotatably arranged on the shell and partially extends out of the shell, and the first end and the second end are located on the two sides of the rolling brush at intervals respectively; the dirt scraping assembly comprises a first scraping strip movably arranged at the first end and a second scraping strip arranged at the second end, and the first scraping strip has a ground contact state abutting against the cleaned face and a suspended state separated from the cleaned face; wherein the first scraping strip is in a suspended state when the rolling brush moves in the first direction and is in a ground contact state when the rolling brush moves in the second direction opposite to the first direction, the second scraping strip abuts against the cleaned face when the first scraping strip is in the suspended state, and the first direction is the direction from the second end to the first end. By means of the floor brush, stains remaining on the cleaned face can be reduced when the floor washing machine moves backwards along the cleaned face for operation, the cleaning effect is improved, and the use experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of smart home devices, and in particular to a floor brush and a floor scrubber. Background Art

[0002] A floor scrubber is a cleaning machine suitable for cleaning hard floors while sucking out wastewater and taking it away from the site. It has the advantages of environmental protection, energy saving, and high efficiency.

[0003] In the related art, a floor scrubber includes a main body, a floor brush and other structures. Due to the structural limitations of the floor brush of the floor scrubber, when the floor scrubber moves forward along the cleaned surface, fewer stains (such as water stains) remain on the cleaned surface. When the floor scrubber moves backward along the cleaned surface, more stains remain on the cleaned surface, resulting in poor cleaning effect, which affects the user experience. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application provides a floor brush and a floor scrubber, which can reduce the stains remaining on the cleaned surface when the floor scrubber moves backward along the cleaned surface, improve the cleaning effect, and enhance the user experience.

[0005] In a first aspect, the present application provides a floor brush, comprising:

[0006] a housing having a first end and a second end;

[0007] A roller brush is rotatably disposed on the housing and partially extends out of the housing, wherein the first end and the second end are respectively spaced apart and located on both sides of the roller brush;

[0008] A scraping assembly, comprising a first scraping strip movably arranged at the first end and a second scraping strip arranged at the second end, wherein the first scraping strip has a ground contacting state against the cleaned surface and a suspended state separated from the cleaned surface;

[0009] Wherein, the first scraper is in the suspended state when the roller brush moves along the first direction, and is in the ground contact state when the roller brush moves along the second direction opposite to the first direction, and the second scraper is against the cleaned surface when the first scraper is in the suspended state, and the first direction is the direction in which the second end points to the first end.

[0010] The floor brush according to the first aspect of the present application has at least the following beneficial effects:

[0011] The floor brush of the present application is configured through the coordinated arrangement of the shell, the roller brush and the scraping assembly, so that when the floor brush moves forward along the surface to be cleaned, the second scraping bar scrapes off the stains remaining on the surface to be cleaned due to the friction of the roller brush on the surface to be cleaned, and when the floor brush moves backward along the surface to be cleaned, the first scraping bar scrapes off the stains remaining on the surface to be cleaned due to the friction of the roller brush on the surface to be cleaned, thereby reducing the stains remaining on the surface to be cleaned during the process of the floor brush moving alternately forward and backward along the surface to be cleaned, improving the cleaning effect of the surface to be cleaned, and enhancing the user experience.

[0012] In some embodiments, the scraping assembly further includes a first driving member and a connecting rod mechanism, and the first driving member drives the first scraping bar to rise and fall relative to the shell through the connecting rod mechanism, so that the first scraping bar switches between the ground contacting state and the suspended state.

[0013] In some embodiments, the connecting rod mechanism includes a rotating rod and a lifting rod, the rotating rod is rotatably connected to the shell, and the lifting rod is rotatably connected to the rotating rod, the shell can limit the lifting rod from moving in a horizontal direction, the first driving member is used to drive the rotating rod to rotate around the connection point with the shell, so as to drive the lifting rod to move in a vertical direction through the rotating rod, and the first scraper strip is arranged at the bottom end of the lifting rod.

[0014] In some embodiments, an active cavity is formed on the shell, the rotating rod and the lifting rod are both installed in the active cavity, and the lifting rod and / or the first scraper strip are limitedly matched with the cavity wall of the active cavity in the horizontal direction.

[0015] In some embodiments, the shell includes a bending baffle plate spaced apart from the roller brush, the bending baffle plate covers at least a portion of the roller brush, the interior of the bending baffle plate forms the active cavity, and an extension trajectory of the active cavity coincides with a bending trajectory of the bending baffle plate.

[0016] In some embodiments, the movable cavity includes a vertical cavity extending along the vertical direction and a transition cavity connected to the vertical cavity, the vertical cavity is bent relative to the transition cavity, the lifting rod is arranged in the vertical cavity, and the rotating rod is arranged in the transition cavity.

[0017] In some embodiments, the shell further includes a dirt suction channel disposed adjacent to the second end, an inlet of the dirt suction channel is opposite to a portion of a peripheral wall of the roller brush, and the dirt suction channel is used to suck dirt on the peripheral wall of the roller brush.

[0018] In some embodiments, the second scraper strip also abuts against the cleaned surface when the first scraper strip is in a ground contact state, and when the second scraper strip abuts against the cleaned surface, it forms an arc-shaped entrance connected to the dirt suction channel with part of the peripheral wall of the roller brush.

[0019] In some embodiments, the scraping assembly further includes a third scraping bar disposed adjacent to the dirt suction channel, the third scraping bar being disposed in the shell and abutting against the peripheral wall of the roller brush, the third scraping bar being used to scrape off dirt on the roller brush.

[0020] In some embodiments, the floor brush further includes a roller, which is rotatably disposed on the housing, and the roller is used to drive the floor brush to move along the cleaned surface toward the first direction or the second direction.

[0021] In some embodiments, the floor brush also includes a detection component and a controller communicatively connected to the detection component, the detection component is configured to detect the rotation direction of the roller, and the controller is configured to obtain a detection signal of the detection component and determine, based on the detection signal, whether the roller brush moves in the first direction or the second direction, so as to control the first scraper strip to switch between the ground contacting state and the suspended state.

[0022] In some embodiments, the detection assembly includes a grille plate disposed on the roller and two signal sensor groups disposed at intervals on the housing;

[0023] Each of the signal sensor groups includes a pair of matched signal transmitters and signal receivers, and the grid plate is located between the signal transmitters and the signal receivers;

[0024] The grille plate includes a plurality of grille openings distributed along the circumferential direction and a baffle bar arranged between two adjacent grille openings, the grille openings are used to connect the signal transmitter with the corresponding signal receiver, and the baffle bar is used to disconnect the signal transmitter with the corresponding signal receiver.

[0025] In a second aspect, the present application provides a floor scrubber, comprising the floor brush described above.

[0026] The floor scrubber according to the second aspect of the present application has at least the following beneficial effects:

[0027] The floor scrubber of the present application, since it is equipped with the above-mentioned floor brush, also has the same technical effect brought by the above-mentioned floor brush, that is, through the coordinated arrangement of the shell, the roller brush and the scraping assembly, when the floor brush works forward along the cleaned surface, the second scraping bar plays a role in scraping off the stains remaining on the cleaned surface due to the friction of the roller brush on the cleaned surface, and when the floor brush works backward along the cleaned surface, the first scraping bar plays a role in scraping off the stains remaining on the cleaned surface due to the friction of the roller brush on the cleaned surface, thereby reducing the stains remaining on the cleaned surface during the process of the floor brush working alternately forward and backward along the cleaned surface, improving the cleaning effect of the cleaned surface, and enhancing the user experience.

[0028] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0030] Figure 1 This is a schematic diagram of the structure of a floor brush according to an embodiment of the present application.

[0031] Figure 2 Another structural schematic diagram of the floor brush according to an embodiment of the present application.

[0032] Figure 3 This is a schematic diagram of the cross-sectional structure of the floor brush according to an embodiment of the present application operating along the first direction.

[0033] Figure 4 This is a schematic diagram of the cross-sectional structure of the floor brush according to an embodiment of the present application operating along the second direction.

[0034] Figure 5 for Figure 4 A partial enlarged view of point A in the middle.

[0035] Figure 6 This is a partial structural schematic diagram of a floor brush according to an embodiment of the present application.

[0036] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure.

[0037] Figure 8 This is a schematic diagram of the coordination structure between the grille plate and the signal sensor group according to an embodiment of the present application.

[0038] Fig. 9 This is a schematic diagram of the structure of a floor scrubber according to an embodiment of the present application.

[0039] Explanation of the reference numerals: shell 100; first end 110; second end 120; movable cavity 130; vertical cavity 131; transition cavity 132; bent baffle 140; dirt suction channel 150; second driving member 160; roller brush cavity 170; roller brush 200; dirt scraping assembly 300; first scraping strip 310; limit block 311; slot 3111; second scraping strip 320; first driving member 330; connecting rod mechanism 340; rotating rod 341; lifting rod 342; protrusion 3421; third scraping strip 350; arc-shaped inlet 360; roller 400; detection assembly 500; grille plate 510; grille opening 511; baffle 512; signal sensor group 520; signal transmitter 521; signal receiver 522; cleaned surface 600; handle structure 700; first direction X1; second direction X2; horizontal direction X; vertical direction Z. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0041] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0042] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0043] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0044] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0045] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, 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 implementation method.

[0046] In the related art, a floor scrubber includes a main body, a floor brush and other structures. Due to the structural limitations of the floor brush of the floor scrubber, when the floor scrubber moves forward along the cleaned surface, fewer stains remain on the cleaned surface. When the floor scrubber moves backward along the cleaned surface, more stains remain on the cleaned surface, resulting in poor cleaning effect, which affects the user experience.

[0047] Based on the problem that when the existing floor scrubbers move backward along the cleaned surface, a lot of stains remain on the cleaned surface, resulting in poor cleaning effect and affecting the user experience, one or more embodiments of the present application provide a floor brush. Through the coordinated arrangement of the shell 100, the roller brush 200 and the scraping assembly 300, when the floor brush moves forward along the cleaned surface 600, the second scraping bar 320 scrapes off the stains remaining on the cleaned surface 600 due to the friction of the roller brush 200 on the cleaned surface 600. When the floor brush moves backward along the cleaned surface 600, the first scraping bar 310 scrapes off the stains remaining on the cleaned surface 600 due to the friction of the roller brush 200 on the cleaned surface 600, thereby reducing the stains remaining on the cleaned surface 600 during the process of the floor brush moving forward and backward along the cleaned surface 600 alternately, improving the cleaning effect of the cleaned surface 600, and enhancing the user experience.

[0048] See also Figure 1 and Figure 2 An embodiment of the present application provides a floor brush, which includes a shell 100, a roller brush 200 and a scraping assembly 300.

[0049] The housing 100 has a first end 110 and a second end 120 .

[0050] The roller brush 200 is rotatably disposed on the housing 100 and partially extends out of the housing 100 . The first end 110 and the second end 120 are respectively spaced apart on both sides of the roller brush 200 .

[0051] The scraping assembly 300 includes a first scraping strip 310 movably disposed at the first end 110 and a second scraping strip 320 disposed at the second end 120. The first scraping strip 310 has a ground contact state against the cleaned surface 600 and a suspended state separated from the cleaned surface 600.

[0052] Among them, the first scraper strip 310 is in a suspended state when the roller brush 200 moves along the first direction X1, and is in a ground contact state when the roller brush 200 moves along the second direction X2 opposite to the first direction X1, and the second scraper strip 320 is in contact with the cleaned surface 600 when the first scraper strip 310 is in a suspended state, and the first direction X1 is the direction in which the second end 120 points to the first end 110.

[0053] It should be noted that see Figure 1 and Figure 2The housing 100 is a carrier for the roller brush 200 and the scraping assembly 300, and can be, but is not limited to, a plastic part. The housing 100 can be provided with a roller brush chamber 170, which is configured to be open on one side facing the surface 600 to be cleaned (such as the ground). The roller brush 200 is rotatably installed in the roller brush chamber 170, and a portion of the roller brush 200 extends out of the housing 100 through the opening of the roller brush chamber 170, so as to contact the surface 600 to be cleaned, thereby cleaning the surface 600.

[0054] The first end 110 and the second end 120 on the shell 100 can be set on the inner wall of the roller brush cavity 170. The first end 110 and the second end 120 are located on opposite sides of the roller brush 200, and neither of them is in contact with the roller brush 200. Taking the shell 100 as a reference, the first end 110 is at the front end of the shell 100, and the second end 120 is at the rear end of the first end 110.

[0055] It should be understood that see Figure 2 and Figure 3 The roller brush 200 is rotatably mounted on the housing 100 along its own axial direction, and the axial direction of the roller brush 200 refers to the direction in which the central axis of the roller brush 200 is located. The manner of realizing the rotatable connection between the roller brush 200 and the housing 100 may be, but is not limited to, a bearing is arranged on the housing 100, the roller brush 200 has a rotating shaft, the roller brush 200 is mounted on the bearing through the rotating shaft thereon, the housing 100 is provided with a second driving member 160, the second driving member 160 is drivingly connected to the rotating shaft on the roller brush 200 to drive the roller brush 200 to rotate around its own axial direction, the second driving member 160 may be, but is not limited to, a matching mechanism of a motor and a transmission structure, the motor is drivingly connected to the rotating shaft of the roller brush 200 through the transmission structure, and the transmission structure may be a belt transmission structure, a chain sprocket transmission structure, etc.

[0056] Bristles are arranged on the peripheral wall of the roller brush 200, and the bristles are configured as a plastic structural member, which is easily deformed by external force. The housing 100 may be provided with a liquid supply mechanism (not shown in the figure) for spraying clean water to the roller brush 200 and a dirt suction channel 150 for sucking dirt on the peripheral wall of the roller brush 200. When the floor brush mops along the cleaned surface 600, the liquid supply mechanism sprays clean water to the peripheral wall of the roller brush 200, so that the bristles on the roller brush 200 adhere to the clean water. When the roller brush 200 rolls along the cleaned surface 600, the bristles on the roller brush 200 are in friction contact with the cleaned surface 600 and are squeezed and bent, thereby rolling up dirt (such as hair, fruit scraps) on the cleaned surface 600, and at the same time, the clean water attached to the bristles washes the cleaned surface 600, and the dirt suction channel 150 sucks and removes the dirt on the bristles, thereby achieving cleaning of the cleaned surface 600.

[0057] It should also be noted that in the scraping assembly 300 of the present application, the first scraping strip 310 and the second scraping strip 320 can be but are not limited to structures such as scrapers and scraping brushes, and the first scraping strip 310 and the second scraping strip 320 are made of a soft rubber material, which can be rubber, thermoplastic polyurethane rubber, polyvinyl chloride, etc.

[0058] When the first scraper bar 310 is in a state of contacting the cleaned surface 600, the first scraper bar 310 can scrape away the stains on the cleaned surface 600, and a small portion of the stains remaining on the cleaned surface 600 are spread on the cleaned surface 600 with a thinner thickness, which is easier to evaporate. When the first scraper bar 310 is in a suspended state separated from the cleaned surface 600, the first scraper bar 310 does not contact the cleaned surface 600. The second scraper bar 320 is similar, and will not be described in detail here.

[0059] The first scraper strip 310 may be movably disposed at the first end 110 : the first scraper strip 310 may be movably or movably disposed at the first end 110 of the housing 100 , and the first scraper strip 310 may reciprocate or rotate relative to the housing 100 to switch between the ground contact state and the suspended state.

[0060] The second scraper bar 320 may be directly fixed on the second end 120 of the housing 100 . When the floor brush moves along the cleaned surface 600 , the second scraper bar 320 is always in contact with the cleaned surface 600 .

[0061] It should also be noted that, in the present application, the direction in which the second end 120 points to the first end 110 is the direction in which the rear end of the housing 100 points to the front end, and also corresponds to the direction in which the floor brush as a whole moves forward along the cleaned surface 600, that is, the first direction X1 corresponds to the direction in which the floor brush as a whole moves forward along the cleaned surface 600. On the contrary, the second direction X2 corresponds to the direction in which the floor brush as a whole moves backward along the cleaned surface 600.

[0062] The following combination Figure 3 and Figure 4 The floor brush operation of the embodiment of the present application is described as follows:

[0063] See also Figure 3, when the floor brush as a whole moves along the first direction X1, that is, when the floor brush as a whole moves forward along the cleaned surface 600, the first scraper bar 310 is in a suspended state separated from the cleaned surface 600, and the second scraper bar 320 is in a ground contacting state against the cleaned surface 600. The floor brush as a whole moves forward, and the roller brush 200 rolls forward along the cleaned surface 600 to perform cleaning operations. Since the second scraper bar 320 is located behind the roller brush 200, the second scraper bar 320 scrapes off the stains (such as water stains) remaining on the cleaned surface 600 due to the friction of the roller brush 200 on the cleaned surface 600, and a small part of the stains remaining on the cleaned surface 600 are spread on the cleaned surface 600 with a thinner thickness, which is easier to evaporate. At the same time, the first scraper bar 310 at this time is in a suspended state and will not scrape and push the dirt on the cleaned surface 600 before the roller brush 200, so that the dirt on the cleaned surface 600 can basically be attached and removed by the roller brush 200. In this way, the dirt and stains remaining on the cleaned surface 600 are reduced, the cleaning effect of the cleaned surface 600 when the floor brush moves forward along the cleaned surface 600 is improved, and the user experience is enhanced.

[0064] See also Figure 4 , when the floor brush as a whole moves along the second direction X2, that is, when the floor brush as a whole moves backward along the cleaned surface 600, the first scraping strip 310 is in a state of contacting the cleaned surface 600, the floor brush as a whole moves backward, and the roller brush 200 rolls backward along the cleaned surface 600 to perform a cleaning operation. Since the first scraping strip 310 is located behind the roller brush 200 along the second direction X2 at this time, the first scraping strip 310 scrapes off the stains remaining on the cleaned surface 600 due to the friction of the roller brush 200 on the cleaned surface 600, and a small part of the stains remaining on the cleaned surface 600 are spread on the cleaned surface 600 with a thinner thickness, which is easier to evaporate. In this way, the dirt and stains remaining on the cleaned surface 600 are reduced, the cleaning effect of the floor brush on the cleaned surface 600 when it moves backward along the cleaned surface 600 is improved, and the user experience is improved.

[0065] In addition, it should be noted that when the floor brush as a whole moves along the second direction X2, the second scraper strip 320 can be in a ground contact state or in a suspended state.

[0066] When the user actually uses the floor brush, the user will operate the floor brush to alternately move forward and backward along the cleaned surface 600 to perform a comprehensive cleaning of the cleaned surface 600 .

[0067] Through the above description, it is not difficult to understand that the floor brush of the embodiment of the present application, through the coordinated arrangement of the shell 100, the roller brush 200 and the scraping assembly 300, when the floor brush works forward along the cleaned surface 600, the second scraping strip 320 plays a role in scraping off the stains remaining on the cleaned surface 600 due to the friction of the roller brush 200 on the cleaned surface 600, and when the floor brush works backward along the cleaned surface 600, the first scraping strip 310 plays a role in scraping off the stains remaining on the cleaned surface 600 due to the friction of the roller brush 200 on the cleaned surface 600, thereby reducing the stains remaining on the cleaned surface 600 during the process of the floor brush working alternately forward and backward along the cleaned surface 600, improving the cleaning effect on the cleaned surface 600, and enhancing the user experience.

[0068] In some embodiments of the present application, see Figure 3 and Figure 4 The scraping assembly 300 further includes a first driving member 330 and a connecting rod mechanism 340. The first driving member 330 drives the first scraping strip 310 to rise and fall relative to the housing 100 through the connecting rod mechanism 340, so that the first scraping strip 310 switches between a ground contact state and a suspended state.

[0069] Specifically, an active cavity 130 is formed on the housing 100 , and the first driving member 330 and the connecting rod mechanism 340 are both installed in the active cavity 130 .

[0070] The connecting rod mechanism 340 can be, but is not limited to, a crank slider mechanism, a crank rocker structure, etc. In one embodiment, the connecting rod mechanism 340 is a crank slider mechanism, the output end of the first driving member 330 is connected to the input end of the crank slider mechanism, and the output end of the crank slider mechanism is connected to the first scraper strip 310 .

[0071] So, see Figure 3 and Figure 4 The first driving member 330 drives the first scraper bar 310 to move downward relative to the shell 100 through the connecting rod mechanism 340, so that the first scraper bar 310 is against the cleaned surface 600 to switch to a ground contacting state. The first driving member 330 drives the first scraper bar 310 to move upward relative to the shell 100 through the connecting rod mechanism 340, so that the first scraper bar 310 is separated from the cleaned surface 600 to switch to a suspended state, thereby achieving the effect of the first scraper bar 310 switching to the corresponding ground contacting state or suspended state according to the moving direction of the entire floor brush.

[0072] Furthermore, the connecting rod mechanism 340 includes a rotating rod 341 and a lifting rod 342. The rotating rod 341 is rotatably connected to the shell 100, and the lifting rod 342 is rotatably connected to the rotating rod 341. The shell 100 can limit the lifting rod 342 from moving in the horizontal direction X. The first driving member 330 is used to drive the rotating rod 341 to rotate around the connection point with the shell 100, so as to drive the lifting rod 342 to move in the vertical direction Z through the rotating rod 341. The first scraper strip 310 is arranged at the bottom end of the lifting rod 342.

[0073] Specifically, the horizontal direction X refers to the length direction of the housing 100 , and the vertical direction Z refers to the height direction of the housing 100 .

[0074] The middle part of the rotating rod 341 is rotatably connected to the housing 100 through a first pin shaft (not shown in the figure), one end of the rotating rod 341 is connected to the output end of the first driving member 330, and the other end of the rotating rod 341 is rotatably connected to the lifting rod 342 through a second pin shaft (not shown in the figure). The housing 100 is formed with a vertical cavity 131 for the lifting rod 342 to move. The lifting rod 342 is installed in the vertical cavity 131 along the vertical direction Z, and the two ends of the lifting rod 342 in the horizontal direction X are against the cavity wall of the vertical cavity 131. In this way, the housing 100 stops and limits the lifting rod 342 in the horizontal direction X, so that the lifting rod 342 has only the degree of freedom of movement in the vertical direction Z, and the first scraper 310 is fixed at the bottom end of the lifting rod 342. The first driving member 330 can be configured as a linear drive structure such as a linear motor.

[0075] It is easy to understand that, see Figure 3 When the entire floor brush is operating in the first direction X1 (operating forward along the cleaned surface 600), the first scraper strip 310 is in a suspended state. Figure 4 When the overall floor brush operates along the second direction X2 (operating backward along the cleaned surface 600), the first driving member 330 drives the rotating rod 341 to rotate counterclockwise around the connection point with the shell 100 by a preset angle, so that the rotating rod 341 drives the lifting rod 342 connected thereto to move downward a preset distance relative to the shell 100, so that the first scraper strip 310 at the bottom end of the lifting rod 342 abuts against the cleaned surface 600, thereby switching to the ground contact state.

[0076] When the floor brush as a whole switches from operating along the second direction X2 to operating along the first direction X1, the first driving member 330 drives the rotating rod 341 to rotate clockwise around the connection point with the shell 100 by a preset angle, so that the rotating rod 341 drives the lifting rod 342 connected thereto to move upward a preset distance relative to the shell 100, so that the first scraper strip 310 at the bottom end of the lifting rod 342 is completely separated from the cleaned surface 600, thereby switching to a suspended state.

[0077] The above-mentioned preset angle and preset distance can be set according to actual on-site requirements. For example, the preset angle is 60° and the preset distance is 15 mm. At this time, when the first driving member 330 drives the rotating rod 341 to rotate 60°, the lifting rod 342 drives the first scraper 310 thereon to move up or down 15 mm relative to the shell 100, that is, when the first scraper 310 is in a suspended state, the first scraper 310 is 15 mm away from the cleaned surface 600.

[0078] Furthermore, an active cavity 130 is formed on the housing 100 , the rotating rod 341 and the lifting rod 342 are both installed in the active cavity 130 , and the lifting rod 342 and / or the first scraper strip 310 are limitedly matched with the cavity wall of the active cavity 130 in the horizontal direction X.

[0079] Specifically, see Figure 4 and Figure 5 A limit block 311 is provided at one end of the first scraper strip 310 away from the cleaned surface 600, and the opposite ends of the limit block 311 are against the opposite cavity walls of the movable cavity 130. A slot 3111 is provided on the limit block 311, and a protrusion 3421 is provided at the bottom end of the lifting rod 342, and the protrusion 3421 is engaged with the slot 3111.

[0080] In this way, on the one hand, the cavity wall of the movable cavity 130 limits the lifting rod 342 in the horizontal direction X, so that the lifting rod 342 has only the freedom of movement in the vertical direction Z, ensuring the linearity of the lifting and lowering movement of the first scraper 310 driven by the lifting rod 342, and avoiding the lifting rod 342 and the first scraper 310 from interfering with the movement of the housing 100. On the other hand, the clamping cooperation between the lifting rod 342 and the first scraper 310 can facilitate the disassembly, assembly and replacement of the first scraper 310, providing convenience for users to maintain the floor brush.

[0081] In addition, installing the rotating rod 341 and the lifting rod 342 in the movable cavity 130 formed by the shell 100 can avoid movement interference between the rotating rod 341 and the lifting rod 342 and the roller brush 200, so that the first scraper 310 can accurately and smoothly switch between the ground contact state and the suspended state.

[0082] Further, see Figure 3 and Figure 4 The housing 100 includes a bending baffle 140 spaced apart from the roller brush 200 . The bending baffle 140 covers at least a portion of the roller brush 200 . An active cavity 130 is formed inside the bending baffle 140 . An extension trajectory of the active cavity 130 coincides with a bending trajectory of the bending baffle 140 .

[0083] Specifically, a rolling brush cavity 170 is formed below the bending area of ​​the bending baffle 140 , and the rolling brush cavity 170 is open toward one side of the cleaned surface 600 , so that the bending baffle 140 covers a partial area of ​​the rolling brush 200 .

[0084] By providing a bending baffle 140 that covers at least part of the roller brush 200, the bending baffle 140 can stop the dirt thrown off the roller brush 200 when the roller brush 200 rolls to clean the cleaned surface 600, so that the dirt is basically attached to the roller brush 200, thereby improving the cleaning effect on the cleaned surface 600; by forming an active cavity 130 on the bending baffle 140, the rotating rod 341 and the lifting rod 342 are installed in the active cavity 130, and the space of the bending baffle 140 can be fully utilized, avoiding the rotating rod 341 and the lifting rod 342 from interfering with the movement of other structures on other floor brushes, while reducing the space occupied by the rotating rod 341 and the lifting rod 342, making the overall structure of the floor brush more beautiful and compact, reducing production costs, and improving user experience.

[0085] Further, see Figure 3 and Figure 4 The movable chamber 130 includes a vertical chamber 131 extending along the vertical direction Z and a transition chamber 132 connected to the vertical chamber 131 . The vertical chamber 131 is bent relative to the transition chamber 132 . The lifting rod 342 is disposed in the vertical chamber 131 , and the rotating rod 341 is disposed in the transition chamber 132 .

[0086] It can be understood that the cavity contour formed by the connection between the vertical cavity 131 and the transition cavity 132 roughly matches the bending contour of the bending baffle 140, the vertical cavity 131 provides installation space for the lifting rod 342 that needs to move along the vertical direction Z, and the transition cavity 132 provides installation space for the rotating rod 341 that needs to rotate relative to the housing 100. In this way, the space of the bending baffle 140 is fully utilized, and the space occupied by the rotating rod 341 and the lifting rod 342 is further reduced, making the overall structure of the floor brush more beautiful and compact, reducing production costs, and improving user experience.

[0087] Moreover, based on the bending shape of the bending baffle 140, the aforementioned connecting rod mechanism 340 is set as a matching structure of the rotating rod 341 and the lifting rod 342, which can adaptively utilize the bending cavity of the bending baffle 140, and there is no need to set up an additional structural space on the shell 100 for installing the connecting rod mechanism 340, thereby reducing the space of the shell 100 occupied by the connecting rod mechanism 340 as a whole, making the overall structure of the floor brush more beautiful and compact, reducing production costs, and improving user experience.

[0088] In some embodiments of the present application, see Figure 3 and Figure 4 The housing 100 further includes a dirt suction channel 150 disposed adjacent to the second end 120 , the inlet of the dirt suction channel 150 is opposite to a portion of the peripheral wall of the roller brush 200 , and the dirt suction channel 150 is used to suck dirt on the peripheral wall of the roller brush 200 .

[0089] Specifically, the floor brush also includes a suction mechanism (not shown in the figure) and a sewage tank (not shown in the figure), the sewage tank is connected to the sewage suction channel 150, the suction mechanism is configured to generate suction force in the sewage suction channel 150, and the suction mechanism can be a fan or the like.

[0090] It is easy to understand that when the floor brush is performing cleaning operations, an adsorption force is formed in the dirt suction channel 150, thereby sucking away the dirt attached to the peripheral wall of the roller brush 200, thereby preventing the dirt on the peripheral wall of the roller brush 200 from accumulating and affecting the cleaning effect.

[0091] Further, see Figure 3 and Figure 4 The second scraper bar 320 also abuts against the cleaned surface 600 when the first scraper bar 310 is in the ground contact state. When the second scraper bar 320 abuts against the cleaned surface 600, it forms an arc-shaped inlet 360 connected to the dirt suction channel 150 with a portion of the peripheral wall of the roller brush 200.

[0092] Specifically, the second scraper strip 320 is detachably fixed to the second end 120 of the housing 100 , so as to facilitate the disassembly, assembly and replacement of the second scraper strip 320 .

[0093] It can be understood that when the ground brush moves alternately forward or backward along the cleaned surface 600, the second scraper strip 320 is always in a ground contacting state with the cleaned surface 600, so as to form an arc-shaped inlet 360 connected to the dirt suction channel 150 with part of the peripheral wall of the roller brush 200, and the arc-shaped trajectory of the arc-shaped inlet 360 matches the partial rotation trajectory of the roller brush 200.

[0094] In this way, when the floor brush is performing cleaning operations, the roller brush 200 rolls counterclockwise along the cleaned surface 6000, and the dirt attached to the peripheral wall of the roller brush 200 can be thrown into the sewage suction channel 150 along the arc-shaped inlet 360 under the action of centrifugal force, so that the dirt on the peripheral wall of the roller brush 200 can be more efficiently sucked away by the sewage suction channel 150.

[0095] Further, see Figure 3 and Figure 4 The scraping assembly 300 also includes a third scraping bar 350 disposed adjacent to the dirt suction channel 150 . The third scraping bar 350 is disposed in the housing 100 and abuts against the peripheral wall of the roller brush 200 . The third scraping bar 350 is used to scrape off dirt on the roller brush 200 .

[0096] Specifically, the third scraper bar 350 may be, but is not limited to, a scraper, a scraper brush, etc. The third scraper bar 350 is made of a soft rubber material, which may be rubber, thermoplastic polyurethane rubber, polyvinyl chloride, etc. The third scraper bar 350 is detachably fixed on the housing 100, so that the third scraper bar 350 can be easily disassembled, assembled, or replaced.

[0097] The third scraper bar 350 and the second scraper bar 320 are respectively located at the upper and lower ends of the inlet of the sewage suction channel 150 .

[0098] In this way, when the floor brush is performing cleaning operations, the roller brush 200 rolls counterclockwise along the cleaned surface 6000, and the dirt attached to the peripheral wall of the roller brush 200 can be thrown into the sewage suction channel 150 along the arc-shaped inlet 360 under the action of centrifugal force. At the same time, the third scraper strip 350 is abutted against the peripheral wall of the roller brush 200 when the roller brush 200 rotates, so that the dirt on the peripheral wall of the roller brush 200 can be scraped off, thereby reducing the dirt attached to and accumulated on the peripheral wall of the roller brush 200, so that the dirt on the peripheral wall of the roller brush 200 can be more efficiently sucked away by the sewage suction channel 150.

[0099] In some embodiments of the present application, see Figure 1 , Figure 3 , Figure 4 , Figure 6 The floor brush further includes a roller 400 , which is rotatably disposed on the housing 100 , and is used to drive the floor brush to move along the cleaned surface 600 in the first direction X1 or the second direction X2 .

[0100] Specifically, there may be two rollers 400, which are arranged opposite to each other along the width direction of the housing 100. The rollers 400 are configured as rubber wheels to increase the friction with the cleaned surface 600. Part of the rollers 400 extend out of the bottom of the housing 100 to contact the cleaned surface 600, thereby supporting the entire floor brush.

[0101] The floor brush also includes a third driving member (not shown in the figure) disposed in the housing 100, the third driving member is transmission-connected to the roller 400, and is used to drive the roller 400 to rotate. The third driving member can be in the form of a motor and a reducer.

[0102] It should be noted that in the present application, when the roller 400 rotates in a clockwise direction, the roller 400 drives the floor brush as a whole to move forward along the cleaned surface 600, and when the roller 400 rotates in a counterclockwise direction, the roller 400 drives the floor brush as a whole to move backward along the cleaned surface 600.

[0103] The rotation of the roller 400 and the rotation of the roller brush 200 are independent and complementary. In the present application, when the floor brush performs a cleaning operation, the roller brush 200 rotates counterclockwise around its own axis, so the movement of the roller brush 200 does not interfere with the movement of the roller 400.

[0104] It is not difficult to understand that, in the present application, the roller 400 is provided, and the roller 400 provides support for the overall structure of the floor brush, while driving the floor brush as a whole to perform cleaning operations along the cleaned surface 600.

[0105] Further, see Figure 6 and Figure 7 The floor brush also includes a detection component 500 and a controller that is communicatively connected to the detection component 500. The detection component 500 is configured to detect the rotation direction of the roller 400. The controller is configured to obtain a detection signal from the detection component 500 and determine whether the roller brush 200 moves in the first direction X1 or the second direction X2 based on the detection signal, so as to control the first scraper strip 310 to switch between a ground contact state and a suspended state.

[0106] Specifically, the roller 400 has two rotation directions: clockwise and counterclockwise. When the roller 400 rotates in the clockwise direction, the roller 400 drives the floor brush as a whole to move forward along the cleaned surface 600, and the roller brush 200 moves in the first direction X1. When the roller 400 rotates in the counterclockwise direction, the roller 400 drives the floor brush as a whole to move backward along the cleaned surface 600, and the roller brush 200 moves in the second direction X2.

[0107] The detection component 500 can be constructed as a grating encoder, the controller is configured as a microprocessor based on single-chip computer program control, the detection component 500 and the aforementioned first drive member 330 are communicatively connected with the controller, the first drive member 330 is constructed as a linear motor, and the connecting rod mechanism 340 is constructed as a crank slider structure.

[0108] It should be understood that when the roller 400 rotates clockwise, the roller 400 drives the floor brush as a whole to move along the first direction X1. At this time, the roller brush 200 moves forward along the cleaned surface 600, and the detection component 500 detects that the rotation direction of the roller 400 is clockwise. The controller obtains the detection signal of the detection component 500 and controls the first driving member 330 to move based on the detection signal, so that the first driving member 330 drives the first scraper 310 to move upward relative to the shell 100 through the connecting rod mechanism 340, and the first scraper 310 moves to a suspended state, so that the first scraper 310 will not scrape the dirt on the cleaned surface 600 before the roller brush 200, so that the dirt on the cleaned surface 600 can basically be attached and removed by the roller brush 200.

[0109] Similarly, when the roller 400 rotates counterclockwise, the roller 400 drives the floor brush as a whole to move along the second direction X2. At this time, the roller brush 200 moves backward along the cleaned surface 600, and the detection component 500 detects that the rotation direction of the roller 400 is counterclockwise. The controller obtains the detection signal of the detection component 500 and controls the first driving member 330 to move based on the detection signal, so that the first driving member 330 drives the first scraper 310 to move downward relative to the shell 100 through the connecting rod mechanism 340, so that the first scraper 310 moves to the ground contact state, so that the first scraper 310 can scrape off the stains remaining on the cleaned surface 600, thereby ensuring the cleaning effect.

[0110] It is not difficult to understand that the floor brush of the present application, through the coordinated setting of the detection component 500 and the controller, can enable the first scraper strip 310 to automatically switch to the corresponding suspended state or ground contact state based on the movement of the roller brush 200 along the first direction X1 or the second direction X2, thereby improving the cleaning effect of the roller brush 200 on the cleaned surface 600.

[0111] Further, see Figure 6 , Figure 7 and Figure 8 The detection assembly 500 includes a grid plate 510 disposed on the roller 400 and two signal sensor groups 520 spaced apart from each other on the housing 100. Each signal sensor group 520 includes a pair of matched signal transmitters 521 and signal receivers 522, and the grid plate 510 is located between the signal transmitters 521 and the signal receivers 522. The grid plate 510 includes a plurality of grid openings 511 distributed along the circumferential direction and a blocking bar 512 disposed between two adjacent grid openings 511, the grid openings 511 are used to conduct the connection between the signal transmitter 521 and the corresponding signal receiver 522, and the blocking bar 512 is used to disconnect the connection between the signal transmitter 521 and the corresponding signal receiver 522.

[0112] Specifically, the grid plate 510 is constructed as a circular grating plate, and the grid plate 510 is assembled inside the rotating shaft of the roller 400 or inside the output shaft of the third driving member. The signal transmitter 521 is an LED transmitting lamp, and the signal receiver 522 is an LED receiving lamp for receiving light emitted by the LED transmitting lamp. The LED transmitting lamp and the LED receiving lamp are directly opposite in a direction parallel to the axial direction of the roller 400. The LED transmitting lamp and the LED receiving lamp are both fixed on the housing 100, and remain relatively stationary with the housing 100, and do not rotate with the roller 400.

[0113] It is easy to understand that, see Figure 8 When the vertical projection of one group of LED emitting lamps and LED receiving lamps relative to the grille plate 510 is within a grille opening 511 on the grille plate 510, the light path between the group of LED emitting lamps and LED receiving lamps is connected, and the group of LED emitting lamps and LED receiving lamps form a connection.

[0114] See also Figure 8 When the vertical projection of an LED emitting lamp or an LED receiving lamp in one group of LED emitting lamps and LED receiving lamps relative to the grille plate 510 is on a baffle 512 on the grille plate 510, the light emitted by the LED emitting lamp is blocked by the baffle 512, and the optical path between the group of LED emitting lamps and the LED receiving lamps is disconnected, and the connection between the group of LED emitting lamps and the LED receiving lamps is disconnected.

[0115] Thus, when the roller 400 rotates, the two groups of LED emitting lights and the LED receiving lights will form two corresponding electrical signals. When one group of LED emitting lights and the LED receiving lights are in a disconnected state, a disconnection signal is formed, and when both groups of LED emitting lights and the LED receiving lights are in a conductive state, a conductive signal is formed. When the roller 400 rotates clockwise or counterclockwise, the multiple conductive signals and the multiple disconnection signals formed by the two groups of LED emitting lights and the LED receiving lights have a corresponding phase difference, that is, a sequence.

[0116] The controller determines the rotation direction of the roller 400 according to the phase difference between multiple conduction signals and multiple disconnection signals, and then accurately determines whether the roller brush 200 moves along the first direction X1 or the second direction X2. Then, by controlling the action of the first driving member 330 and the corresponding connecting rod mechanism 340, the first scraper 310 automatically switches to the corresponding suspended state or ground contact state based on the movement of the roller brush 200 along the first direction X1 or the second direction X2, thereby improving the cleaning effect of the roller brush 200 on the cleaned surface 600.

[0117] It is not difficult to understand that, in the present application, through the coordinated setting of the grille plate 510 and the two pairs of signal sensor groups 520, the two pairs of signal sensor groups 520 can form multiple on signals and multiple off signals in the process of the roller 400 driving the grille plate 510 to rotate. The controller can determine the rotation direction of the roller 400 according to the phase difference between the multiple on signals and the multiple off signals, and then accurately determine whether the roller brush 200 moves along the first direction X1 or the second direction X2, and then by controlling the action of the first driving member 330 and the corresponding connecting rod mechanism 340, the first scraper 310 automatically switches to the corresponding suspended state or ground contact state based on the movement of the roller brush 200 along the first direction X1 or the second direction X2, thereby improving the cleaning effect of the roller brush 200 on the cleaned surface 600.

[0118] In addition, see Fig. 9 The embodiment of the present application further provides a floor scrubber, which includes the floor brush of any of the above embodiments. The floor scrubber also has a handle structure 700, which is rotatably connected to the housing 100. The setting of the handle structure 700 facilitates the user to control the overall movement direction of the floor brush, and facilitates the user to manually operate the floor scrubber.

[0119] It is not difficult to understand that the floor scrubber of the embodiment of the present application, since it is equipped with the above-mentioned floor brush, also has the same technical effect brought by the above-mentioned floor brush, that is, through the coordinated arrangement of the shell 100, the roller brush 200 and the scraping assembly 300, when the floor brush works forward along the cleaned surface 600, the second scraping bar 320 plays a role in scraping off the stains remaining on the cleaned surface 600 due to the friction of the roller brush 200 on the cleaned surface 600, and when the floor brush works backward along the cleaned surface 600, the first scraping bar 310 plays a role in scraping off the stains remaining on the cleaned surface 600 due to the friction of the roller brush 200 on the cleaned surface 600, thereby reducing the stains remaining on the cleaned surface 600 during the process of the floor brush working alternately forward and backward along the cleaned surface 600, improving the cleaning effect of the cleaned surface 600, and enhancing the user experience.

[0120] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0121] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A floor brush, characterized in that: include: a housing having a first end and a second end; A roller brush is rotatably disposed on the housing and partially extends out of the housing, wherein the first end and the second end are respectively spaced apart and located on both sides of the roller brush; A scraping assembly, comprising a first scraping strip movably arranged at the first end and a second scraping strip arranged at the second end, wherein the first scraping strip has a ground contacting state against the cleaned surface and a suspended state separated from the cleaned surface; Wherein, the first scraper is in the suspended state when the roller brush moves along the first direction, and is in the ground contact state when the roller brush moves along the second direction opposite to the first direction, and the second scraper is against the cleaned surface when the first scraper is in the suspended state, and the first direction is the direction in which the second end points to the first end.

2. The floor brush according to claim 1, characterized in that: The scraping assembly further includes a first driving member and a connecting rod mechanism, wherein the first driving member drives the first scraping strip to rise and fall relative to the shell through the connecting rod mechanism, so that the first scraping strip switches between the ground contacting state and the suspended state.

3. The floor brush according to claim 2, characterized in that: The connecting rod mechanism includes a rotating rod and a lifting rod, the rotating rod is rotatably connected to the shell, and the lifting rod is rotatably connected to the rotating rod. The shell can limit the lifting rod from moving in the horizontal direction. The first driving member is used to drive the rotating rod to rotate around the connection point with the shell, so as to drive the lifting rod to move in the vertical direction through the rotating rod. The first scraper strip is arranged at the bottom end of the lifting rod.

4. The floor brush according to claim 3, characterized in that: An active cavity is formed on the shell, the rotating rod and the lifting rod are both installed in the active cavity, and the lifting rod and / or the first scraper strip are limitedly matched with the cavity wall of the active cavity in the horizontal direction.

5. The floor brush according to claim 4, characterized in that: The shell includes a bending baffle plate spaced apart from the roller brush, the bending baffle plate covers at least a portion of the roller brush, the interior of the bending baffle plate forms the active cavity, and an extension trajectory of the active cavity coincides with a bending trajectory of the bending baffle plate.

6. The floor brush according to claim 5, characterized in that: The movable cavity comprises a vertical cavity extending along the vertical direction and a transition cavity connected with the vertical cavity, the vertical cavity is bent relative to the transition cavity, the lifting rod is arranged in the vertical cavity, and the rotating rod is arranged in the transition cavity.

7. The floor brush according to claim 1, characterized in that: The housing further comprises a dirt suction channel arranged adjacent to the second end, an inlet of the dirt suction channel is opposite to a portion of the peripheral wall of the roller brush, and the dirt suction channel is used to suck dirt on the peripheral wall of the roller brush.

8. The floor brush according to claim 7, characterized in that: The second scraper bar also abuts against the cleaned surface when the first scraper bar is in a ground contact state. When the second scraper bar abuts against the cleaned surface, it forms an arc-shaped inlet connected to the dirt suction channel with a portion of the peripheral wall of the roller brush.

9. The floor brush according to claim 7, characterized in that: The scraping assembly also includes a third scraping bar disposed adjacent to the dirt suction channel. The third scraping bar is disposed in the housing and abuts against the peripheral wall of the roller brush. The third scraping bar is used to scrape off dirt on the roller brush.

10. The floor brush according to any one of claims 1 to 9, characterized in that: The floor brush further comprises a roller, which is rotatably disposed on the housing and is used to drive the floor brush to move along the cleaned surface toward the first direction or the second direction.

11. The floor brush according to claim 10, characterized in that: The floor brush also includes a detection component and a controller communicatively connected to the detection component, wherein the detection component is configured to detect the rotation direction of the roller, and the controller is configured to obtain a detection signal from the detection component and determine, based on the detection signal, whether the roller brush moves in the first direction or the second direction, so as to control the first scraper strip to switch between the ground contacting state and the suspended state.

12. The floor brush according to claim 11, characterized in that: The detection assembly includes a grille plate disposed on the roller and two signal sensor groups spaced apart from each other on the housing; Each of the signal sensor groups includes a pair of matched signal transmitters and signal receivers, and the grid plate is located between the signal transmitters and the signal receivers; The grille plate includes a plurality of grille openings distributed along the circumferential direction and a baffle bar arranged between two adjacent grille openings, the grille openings are used to connect the signal transmitter with the corresponding signal receiver, and the baffle bar is used to disconnect the signal transmitter with the corresponding signal receiver.

13. A floor scrubber, characterized in that: It comprises the floor brush as described in any one of claims 1 to 12.

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