Floor brush structure and cleaning equipment

Abstract

The invention relates to a floor brush structure and cleaning equipment. The floor brush structure comprises a shell, a power assembly, a first rolling brush and a second rolling brush. Wherein the power assembly is located on the shell, the first rolling brush is connected with the power assembly, and the second rolling brush is connected with the power assembly; in the advancing direction of the cleaning process, the second rolling brush is located behind the first rolling brush, the rotating direction of the first rolling brush is the advancing direction, and the rotating direction of the second rolling brush is opposite to the rotating direction of the first rolling brush; the rotating speed of the first rolling brush driven by the power assembly is larger than that of the second rolling brush driven by the power assembly. According to the embodiment of the invention, the rotating first rolling brush can be used for providing assistance in the advancing direction for the cleaning process, so that the cleaning equipment can be pulled more easily and conveniently, and the heavy feeling of the cleaning equipment is reduced.

Description

Technical Field

[0001] The present disclosure relates to the field of mechanical equipment, and in particular to a floor brush structure and a cleaning device. Background Art

[0002] Take a floor scrubber as an example of cleaning equipment. The floor scrubber delivers cleaning liquid to the surface to be cleaned through the floor brush structure, scrubs the surface to be cleaned with the roller brush in the floor brush structure, and then recovers the dirt generated. In order to provide cleaning liquid and recover dirt, the floor scrubber also needs to be equipped with a clean water tank and a sewage tank. This structure of the floor scrubber makes the floor scrubber relatively bulky. Summary of the invention

[0003] Problem that the invention aims to solve

[0004] In order to solve the problem that cleaning equipment is bulky and inconvenient to use, the embodiments of the present disclosure provide a floor brush structure and a cleaning equipment.

[0005] Solutions for solving problems

[0006] A first aspect of the present disclosure provides a floor brush structure, the floor brush structure comprising:

[0007] case;

[0008] A power assembly, located on the housing;

[0009] A first roller brush connected to the power assembly;

[0010] a second roller brush connected to the power assembly; wherein, in the direction of travel during the cleaning process, the second roller brush is located behind the first roller brush, the rotation direction of the first roller brush is the direction of travel, and the rotation direction of the second roller brush is opposite to the rotation direction of the first roller brush;

[0011] The speed at which the power component drives the first roller brush to rotate is faster than the speed at which the power component drives the second roller brush to rotate.

[0012] Optionally, the floor brush structure further includes:

[0013] A water squeezing member is connected to the housing, the water squeezing member is in contact with the second roller brush, and the water squeezing member is used to remove liquid on the second roller brush.

[0014] Optionally, the power assembly includes:

[0015] A rotating driving member for providing a driving force;

[0016] A transmission mechanism connected to the rotary drive member, the transmission mechanism comprising a first output shaft and a second output shaft;

[0017] The deceleration assembly includes a first assembly connected to the first output shaft and the first roller brush respectively, and a second assembly connected to the second output shaft and the second roller brush respectively.

[0018] Optionally, the first component includes:

[0019] A first output wheel connected to the first output shaft;

[0020] A first input wheel connected to the first roller brush;

[0021] A first transmission belt, wherein the teeth of the first output wheel and the first input wheel respectively connect to the teeth of the first input wheel and meet the meshing condition, and the number of teeth of the first output wheel is the same as or different from the number of teeth of the first input wheel;

[0022] and / or,

[0023] The second component comprises:

[0024] a second output wheel connected to the second output shaft;

[0025] a second input wheel connected to the second roller brush;

[0026] a second transmission belt, connecting the second output wheel and the second input wheel respectively;

[0027] The teeth of the second output wheel and the teeth of the second input wheel meet the meshing condition, and the number of teeth of the second output wheel is less than the number of teeth of the second input wheel.

[0028] Optionally, the first roller brush and the second roller brush satisfy at least one of the following:

[0029] The bristle hardness of the first roller brush is less than the bristle hardness of the second roller brush;

[0030] The height of the bristles of the first roller brush is greater than the height of the bristles of the second roller brush;

[0031] The bristle density of the first roller brush is less than that of the bristles of the second roller brush, and the material of the bristles of the second roller brush is different from the material of the bristles of the second roller brush;

[0032] The diameter of the first roller brush is greater than the diameter of the second roller brush;

[0033] The weight of the first roller brush is greater than the weight of the second roller brush.

[0034] Optionally, the housing further has a suction port and a first air duct, the suction port is connected to the first air duct, and the suction port is adjacent to the first roller brush;

[0035] The inner wall of the suction port defines a liquid storage tank, the liquid storage tank is located in the suction port, and the liquid storage tank has an opening, and the opening of the liquid storage tank faces the first air duct.

[0036] Optionally, the projection of the tank wall of the liquid storage tank along the vertical direction is at least partially located within the projection of the inlet of the first air duct along the vertical direction, and the projection of the opening of the liquid storage tank along the vertical direction is located within the projection of the inlet of the first air duct along the vertical direction.

[0037] Optionally, the inner wall of the suction port includes a partition and a bottom plate, the partition and the bottom plate together form a tank wall of the liquid storage tank, and the partition is at least partially located above the bottom plate to separate the liquid storage tank in the suction port.

[0038] Optionally, the separator comprises:

[0039] A first part and a second part located in the suction port, between the second part and the first air duct; wherein the first part is mounted on the bottom plate, and the liquid storage tank is formed between the second part and the bottom plate;

[0040] The second part includes: a first end and a second end connected to the first part, and a connecting part connecting the first end and the second end; the connecting part forms the top wall of the liquid storage tank, wherein the distance between the top wall of the liquid storage tank and the base gradually increases from the first end to the second end.

[0041] Optionally, the length of the second part along the parallel direction of the first roller brush and the second roller brush relative to the first part is 7-8 mm, and / or the vertical distance between the second end of the second part and the base is 3-4 mm.

[0042] Optionally, the edge of the inlet is inclined toward the suction port, and the partition has an inclined surface inclined toward the first air duct, wherein the projection of the highest point of the inlet edge along the vertical direction is located on the inclined surface.

[0043] Optionally, the separator and the rubber strip of the first roller brush, and the liquid storage tank are located between the rubber strip and the hose forming the first air duct.

[0044] A second aspect of the present disclosure provides a cleaning device, the cleaning device comprising:

[0045] The floor brush structure described in the first aspect of the embodiment;

[0046] A body frame pivotally connected to the floor brush structure;

[0047] A suction piece is mounted on the fuselage frame.

[0048] Optionally, the cleaning device further comprises:

[0049] A water tank assembly is mounted on the floor brush structure;

[0050] A roller brush window connects the floor brush structure and the water tank assembly to be reused as a window of the water tank in the water tank assembly; wherein the water tank assembly is a clean water tank assembly or a dirty water tank assembly.

[0051] Optionally, the cleaning device further comprises: a base having a storage compartment for carrying the floor brush structure and a water channel for accommodating the cleaning liquid;

[0052] The water channel comprises a water inlet and a water outlet, and the water channel is connected with the containing chamber through the water outlet;

[0053] When the floor brush structure is located in the accommodating bin, the water inlet is connected to the water outlet of the floor brush structure, the water outlet is adjacent to the second roller brush, and the second roller brush is located between the first roller brush and the water outlet.

[0054] Optionally, the containing chamber comprises:

[0055] A first area, opposite to the suction port;

[0056] A second area, located between the water inlet and the first area, wherein the bottom surface of the second area gradually decreases from the water inlet toward the first area;

[0057] The third area is located between the first areas, and the bottom surface of the third area gradually decreases from the water outlet to the first area.

[0058] Optionally, the base comprises:

[0059] A first housing having a bin wall and a channel wall; wherein the bin wall defines a groove with an opening on one side, and the channel wall is located at an outer edge of the bin wall;

[0060] The second shell is connected to the first shell and covers the opening of the groove to form the water channel.

[0061] Optionally, the base further includes:

[0062] a third housing, wherein the third housing and the second housing together form a second air duct, the second air duct and the storage bin are respectively located on opposite sides of the first housing, and the air duct is in communication with the storage bin;

[0063] A hair dryer, wherein the air outlet of the hair dryer is connected to the air inlet of the second air duct.

[0064] Optionally, the base further includes:

[0065] The heating element is located between the air outlet and the air inlet of the hair dryer.

[0066] The base is located between the channel wall and the second shell, and realizes a sealed connection between the second shell and the channel wall.

[0067] Optionally, the waterway channel comprises:

[0068] A cavity, communicated with the water inlet, for temporarily storing the cleaning liquid entering through the water inlet;

[0069] A channel connects the cavity and the water outlet and is used to guide the cleaning liquid to the water outlet.

[0070] Optionally, the base forms a wall of the accommodating bin with a protrusion protruding toward the second roller brush, and the protrusion is adjacent to the water outlet.

[0071] Optionally, the bottom height of the water channel gradually decreases from the water inlet to the water outlet.

[0072] Optionally, there is a gap between the bottom surface of the accommodating bin and the rubber strip at the bottom of the floor brush structure; wherein the rubber strip adheres to the surface to be cleaned during the cleaning process.

[0073] Effects of the Invention

[0074] The first roller brush and the second roller brush can provide assistance in both pushing and pulling directions, reducing the bulkiness of the cleaning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] Figure 1A This is one of the partial structural schematic diagrams of a floor brush structure provided by an embodiment of the present disclosure;

[0076] Figure 1B The second partial structural schematic diagram of the floor brush structure provided by one embodiment of the present disclosure;

[0077] Figure 2A One of the partial structural cross-sectional views of a cleaning device provided by an embodiment of the present disclosure;

[0078] Figure 2B A second partial structural cross-sectional view of a cleaning device provided by an embodiment of the present disclosure;

[0079] Figure 2C for Figure 2B The enlarged view of point A in the middle;

[0080] Figure 2DA third partial structural cross-sectional view of a cleaning device provided in one embodiment of the present disclosure;

[0081] Figure 2E A partial structural cross-sectional view of a liquid storage tank in a cleaning device provided in an embodiment of the present disclosure;

[0082] Figure 2F An exploded view of a local structure of a cleaning device provided by an embodiment of the present disclosure;

[0083] Figure 2G A schematic diagram of the appearance structure of a cleaning device provided in one embodiment of the present disclosure;

[0084] Figure 2H A schematic cross-sectional view of a local structure of a cleaning device provided in one embodiment of the present disclosure;

[0085] Fig.2I A fourth partial structural cross-sectional view of a cleaning device provided by an embodiment of the present disclosure;

[0086] Figure 2J A fifth partial structural cross-sectional view of a base provided in an embodiment of the present disclosure;

[0087] Figure 2K This is a sixth partial structural cross-sectional view of a base provided in accordance with an embodiment of the present disclosure.

[0088] Figure 3A One of the structural schematic diagrams of a base provided in one embodiment of the present disclosure;

[0089] Figure 3B A second structural schematic diagram of a base provided in an embodiment of the present disclosure;

[0090] Figure 3C This is one of the partial structural schematic diagrams of a base provided in one embodiment of the present disclosure;

[0091] Figure 3D A third structural schematic diagram of a base provided in an embodiment of the present disclosure;

[0092] Figure 3E A second schematic diagram of a partial structure of a base provided in an embodiment of the present disclosure;

[0093] Figure 3F A fourth structural schematic diagram of a base provided in an embodiment of the present disclosure;

[0094] Figure 3G A third schematic diagram of a partial structure of a base provided in an embodiment of the present disclosure;

[0095] Figure 3H A fourth schematic diagram of a partial structure of a base provided in an embodiment of the present disclosure;

[0096] Fig. 3I One of the partial structural cross-sectional views of a base provided in one embodiment of the present disclosure;

[0097] Figure 3J A second partial structural cross-sectional view of a base provided in an embodiment of the present disclosure;

[0098] Figure 3K A third partial structural cross-sectional view of a base provided in an embodiment of the present disclosure;

[0099] Figure 3L A fifth schematic diagram of a partial structure of a base provided in an embodiment of the present disclosure;

[0100] Figure 3M A sixth schematic diagram of a partial structure of a base provided in an embodiment of the present disclosure;

[0101] Figure 3N This is a fourth partial structural cross-sectional view of a base provided in accordance with an embodiment of the present disclosure.

[0102] Description of reference numerals: floor brush structure 100, bristles 101; roller 102; rubber strip 103; water outlet 104; housing 110; power assembly 140; first roller brush 120; second roller brush 130; water squeezing member 150; rotary drive member 141; transmission mechanism 142; first output shaft 1421; second output shaft 1422; first assembly 143; first output wheel 1431; first input wheel 1432; first transmission belt 1433; second assembly 144; second output wheel 1441; second transmission belt 1442; second input wheel 1443; first air duct 160; inlet 161 of the first air duct; edge 161a of the inlet; suction port 170; liquid storage tank 171; partition 180; first part 181; second part 182; inclined surface 182a of the partition; second end 1821 of the second part; bottom plate 190; first end 1822 of the second part; base 200; first shell 210; bin wall 211; accommodating bin 212; second area 2121; first area 2122; third area 2123; protrusion 213; interval 214; second shell 220; third shell 230; waterway channel 240; cavity 241; channel 242; channel wall 2421; water inlet 243; water outlet 244; second air duct 250; groove 251; blower 260; heating element 270; sealing element 280; fuselage 300; fuselage frame 310; suction element 320; sewage tank 330; water tank assembly 340; roller brush window 341. DETAILED DESCRIPTION

[0103] In order to make the technical solutions and beneficial effects of the present invention more clearly understandable, the following is a detailed description by listing specific embodiments. The drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features; unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application belongs.

[0104] In the description of the present invention, terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of simplified description of the present invention, and do not indicate that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be understood as a limitation to the present invention.

[0105] In the present invention, the terms "first" and "second" are only used for the purpose of clear description and cannot be understood as the relative importance of the indicated features or the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly include at least one of the features. In the description of the present invention, "multiple" means at least two, such as two, three, etc.; "several" means at least one, such as one, two, three, etc., unless otherwise clearly and specifically defined.

[0106] In the present invention, unless otherwise clearly defined, the terms "install", "connect", "connect", "fix", "set", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral 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, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0107] In the present invention, unless otherwise clearly defined, a first feature being “on”, “above”, “above”, “below”, “below”, “below” or “below” a second feature may mean that the first feature is in direct contact with the second feature, or the first feature and the second feature are in indirect contact with each other through an intermediate medium. Moreover, a first feature being “on”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than the horizontal height of the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0108] like Figure 1A and Figure 1B As shown, the embodiment of the present disclosure provides a floor brush structure, and the floor brush structure 100 includes: a housing 110, a power assembly 140, a first roller brush 120, and a second roller brush 130. The power assembly 140 is located on the housing 110, the first roller brush 120 is connected to the power assembly 140, and the second roller brush 130 is connected to the power assembly 140; in the moving direction of the cleaning process, the second roller brush 130 is located behind the first roller brush 120, the rotation direction of the first roller brush 120 is the moving direction, and the rotation direction of the second roller brush 130 is opposite to the rotation direction of the first roller brush 120; the speed at which the power assembly 140 drives the first roller brush 120 to rotate is greater than the speed at which the power assembly 140 drives the second roller brush 130 to rotate.

[0109] The traveling direction of the embodiment of the present disclosure refers to the direction from the floor brush structure 100 or the cleaning device to the surface to be cleaned during the cleaning process, which is generally in front of the user during the cleaning process. Figure 1B and Figure 2A A cleaning device including a floor brush structure 100 is exemplarily shown, wherein the direction of the arrow is the moving direction.

[0110] Generally, the cleaning process requires not only a thrust in the direction of travel, but also a pulling force in the opposite direction to the direction of travel, through repeated pushing and pulling to achieve a better cleaning effect. In the disclosed embodiment, the rotation direction of the first roller brush 120 is the direction of travel, and the rotating first roller brush 120 can provide assistance in the direction of travel for the cleaning process, making it easier to push the cleaning device in the direction of travel. The rotation direction of the second roller brush 130 is opposite to the direction of travel, and the rotating second roller brush 130 can provide assistance for pulling the cleaning device, making it easier to pull the cleaning device. The first roller brush 120 and the second roller brush 130 can provide assistance in both pushing and pulling directions, reducing the bulkiness of the cleaning device.

[0111] Moreover, the first roller brush 120 rotates faster, and the interference amount of the first roller brush 120 with the surface to be cleaned is small, so the rotating first roller brush 120 can provide more assistance in the direction of travel, further improving the portability of the cleaning process. During the cleaning process, pushing in the direction of travel is more difficult than pulling in the opposite direction of travel. The embodiment of the present disclosure sets a higher rotation speed for the first roller brush 120, which can make it easier to push during the cleaning process, further reduce the bulkiness of the cleaning device, and be more conducive to improving the portability of the cleaning process.

[0112] In the embodiment of the present disclosure, by adjusting the amount of interference between the two roller brushes and the contacted surface, the assistance of the first roller brush 120 and the second roller brush 130 can be balanced to meet different assistance requirements.

[0113] Without limitation, the functions of the floor brush structure 100 include at least one of the following: contacting with the surface to be cleaned, carrying the body 300 of the cleaning device, and enabling the cleaning device to stand without external support, etc. Among them, the body 300 includes a body frame 310, and a suction fan installed on the body frame 310 and providing a power source for sucking dirt, etc. The surface to be cleaned can be a hard surface or a soft surface. The hard surface can be a wooden board, a tile, etc. The soft surface can be a carpet surface, a sofa surface, etc.

[0114] The power assembly 140 provides rotational power for the first roller brush 120 and the second roller brush 130. Exemplarily, the power assembly 140 includes a motor and a transmission assembly, and the transmission assembly can transmit the power output by the motor to the first roller brush 120 and the second roller brush 130. The transmission assembly can include a meshing transmission of gears and gears, a meshing transmission of racks and gears, etc.

[0115] The first roller brush 120 and the second roller brush 130 may each include a roller 102 and bristles 101 attached to the roller 102. The roller 102 may be mounted on the housing 110. Exemplarily, the roller 102 may be pivotally connected to the housing 110.

[0116] Exemplarily, the first roller brush 120 and the second roller brush 130 are arranged in parallel or approximately in parallel. Exemplarily, there is a certain distance between the first roller brush 120 and the second roller brush 130 to reduce mutual interference between the two roller brushes.

[0117] The cleaning device contacts the support surface through the first roller brush 120 and the second roller brush 130. The larger the distance between the first roller brush 120 and the second roller brush 130, the larger the support area of ​​the support surface for the entire cleaning device, which is equivalent to the larger the contact area between the support surface and the entire cleaning device, the more stable the entire device. The support surface includes but is not limited to the surface to be cleaned. In addition, components such as a water pump, a clean water tank, a circuit board, and a motor that drives the roller brush to rotate can also be arranged between the first roller brush 120 and the second roller brush 130.

[0118] In some embodiments, the first roller brush 120 is a roller brush that will fall down due to gravity when the floor brush structure 100 is lifted.

[0119] like Figure 2A As shown, generally, the area of ​​the floor brush structure 100 adjacent to the second roller brush 130 is pivotally connected to the body 300 of the cleaning device. Figure 2A As shown by the middle arc arrow, under the influence of gravity, the floor brush structure 100 rotates relative to the body 300, and the first roller brush 120 tilts forward.

[0120] According to some optional embodiments, the floor brush structure 100 further includes a water squeezing member 150 . The water squeezing member 150 is connected to the housing 110 , contacts the second roller brush 130 , and is used to remove liquid on the second roller brush 130 .

[0121] When the power assembly 140 drives the second roller brush 130 to roll, the water squeezing member 150 scrapes off the liquid on the second roller brush 130 by contacting the second roller brush 130, so that the second roller brush 130 is drier, which can reduce the water stains remaining on the surface after cleaning and improve the cleaning effect.

[0122] In some embodiments, Figure 2B As shown, the first roller brush 120 is not provided with a water squeezing member 150, which can reduce the clogging of dirt at the first roller brush 120, and the resistance is small during the rotation process, and the energy loss is small, which can improve the cleaning efficiency. Therefore, the first roller brush 120 of the embodiment of the present disclosure is not provided with a water squeezing member 150, and the second roller brush 130 is provided with a water squeezing member 150, which can take into account both the cleaning effect and the cleaning efficiency.

[0123] Optionally, if the bristles of the first roller brush 120 are not easy to store water, there is no need to set the water squeezing member 150 at the first roller brush 120. For example, the bristles of the first roller brush 120 are sparse and long, or the bristles of the first roller brush 120 are plastic bristles, which are not easy to store water, and there is no need for the water squeezing member 150. Under at least one factor such as gravity, the squeezing force between the first roller brush 120 and the surface to be cleaned, or the centrifugal force during the rolling process, the water on the first roller brush 120 is also easy to fall off. On the contrary, if the bristles of the second roller brush 130 are easy to store water, for example, the bristles of the second roller brush 130 are dense, it is necessary to set the water squeezing member 150 at the second roller brush 130.

[0124] Since the first roller brush 120 is located in front of the second roller brush 130, during the cleaning process, the first roller brush 120 will first contact the dirt, and the second roller brush 130 will contact the dirt cleaned by the first roller brush 120. Therefore, the first roller brush 120 is more likely to accumulate dirt and become clogged. The first roller brush 120 is not provided with a water squeezing member 150, but the water squeezing bar is provided at the second roller brush 130 with a lower rotation speed, which has a more reasonable structure.

[0125] The liquid on the second roller brush 130 can be a cleaning liquid or dirty water. It is understandable that the water squeezing member 150 can also remove solid dirt such as hair, dust, etc. adhered to the second roller brush 130.

[0126] The water squeezing member 150 exerts a certain squeezing force on the second rolling brush 130 , that is, the water squeezing member 150 contacts the second rolling brush 130 in an interference manner. This squeezing contact manner can effectively remove the liquid on the second rolling brush 130 .

[0127] Exemplarily, when the water squeezing member 150 contacts the second rolling brush 130 , the depth (equivalent to the interference fit) of the water squeezing member 150 extending into the second rolling brush 130 is greater than 0 cm.

[0128] In some embodiments, the length of the water squeezing member 150 is equal to or approximately equal to the length of the second rolling brush 130. The water squeezing member 150 of such a length can completely cover the second rolling brush 130 when the second rolling brush 130 rotates.

[0129] In some embodiments, the water extruding member 150 is a steel bar. In addition to steel, the water extruding member 150 can also be made of other materials such as plastic.

[0130] According to some optional embodiments, the power assembly 140 includes: a rotary drive member 141, a transmission mechanism 142 and a reduction assembly. The rotary drive member 141 is used to provide driving force; the transmission mechanism 142 is connected to the rotary drive member 141, and the transmission mechanism 142 includes a first output shaft 1421 and a second output shaft 1422; the reduction assembly includes a first assembly 143 respectively connected to the first output shaft 1421 and the first roller brush 120, and a second assembly 144 respectively connected to the second output shaft 1422 and the second roller brush 130.

[0131] Exemplarily, the rotary driving member 141 is a motor.

[0132] In the disclosed embodiment, a rotating drive member 141 can respectively drive two roller brushes to rotate at different speeds through the two output shafts of the transmission mechanism 142. There is no need for two rotating drive members 141 to respectively realize the rotation of the two roller brushes, which is beneficial to saving space occupied by the floor brush structure 100 and reducing the weight of the floor brush structure 100.

[0133] It is understandable that two rotating drive members 141 may be used to respectively drive the first roller brush 120 and the second roller brush 130 to rotate, and the shaft of each rotating drive member 141 outputs a different rotation speed, so that the rotation speed of the first roller brush 120 is faster than that of the second roller brush 130.

[0134] Exemplarily, the transmission mechanism 142 further includes at least two gears, and the first output shaft 1421 and the second output shaft 1422 are respectively mounted on different gears.

[0135] In some embodiments, the first output shaft 1421 and the second output shaft 1422 have the same rotational speed. It is understandable that the rotational speeds of the first output shaft 1421 and the second output shaft 1422 may also be different. Whether the rotational speeds of the first output shaft 1421 and the second output shaft 1422 are the same can be achieved by adjusting the number of teeth of the gears in the transmission mechanism 142.

[0136] Without limitation, the speed reduction mechanism may also be composed of a plurality of gears, and the speed reduction of the first output shaft 1421 or the second output shaft 1422 may be achieved by adjusting the number of teeth of two gears meshing with each other.

[0137] In some embodiments, the first output shaft 1421 and the second output shaft 1422 have the same rotational speed, and the reduction ratio of the first component 143 is greater than the reduction ratio of the second component 144. For example, the reduction ratio of the first component 143 is 1:1, that is, the ratio of the rotation speed of the first roller brush 120 to the speed output of the first output shaft 1421 is 1:1; the reduction ratio of the second component 144 is 1:3, that is, the ratio of the rotation speed of the second roller brush 130 to the speed output of the second output shaft 1422 is 1:3.

[0138] According to some optional embodiments, the first component 143 includes: a first output wheel 1431, a first input wheel 1432 and a first transmission belt 1433. The first output wheel 1431 is connected to the first output shaft 1421, the first input wheel 1432 is connected to the first roller brush 120, and the first transmission belt 1433 is respectively connected to the first output wheel 1431 and the first input wheel 1432; wherein the teeth of the first output wheel 1431 and the teeth of the first input wheel 1432 meet the meshing condition, and the number of teeth of the first output wheel 1431 is the same as or different from the number of teeth of the first input wheel 1432; and / or, the second component 144 includes: a second output wheel 1441, a second input wheel 1443 and a second transmission belt 1442. The second output wheel 1441 is connected to the second output shaft 1422, the second input wheel 1443 is connected to the second roller brush 130, and the second transmission belt 1442 connects the second output wheel 1441 and the second input wheel 1443 respectively; wherein the teeth of the second output wheel 1441 and the teeth of the second input wheel 1443 meet the meshing conditions, and the number of teeth of the second output wheel 1441 is less than the number of teeth of the second input wheel 1443.

[0139] The first output wheel 1431 and the first input wheel 1432 meet the meshing condition, which means that if the first output wheel 1431 can contact the first input wheel 1432, the first output wheel 1431 can mesh with the first input wheel 1432. The first output wheel 1431 and the first input wheel 1432 that meet the meshing condition can achieve speed reduction by adjusting the number of teeth.

[0140] Similarly, the second output wheel 1441 and the second input wheel 1443 satisfy the meshing condition, which means that if the second output wheel 1441 can contact the second input wheel 1443, the second output wheel 1441 can mesh with the second input wheel 1443. The second output wheel 1441 and the second input wheel 1443 that satisfy the meshing condition can achieve speed reduction by adjusting the number of teeth.

[0141] In some embodiments, the first output shaft 1421 and the second output shaft 1422 have the same rotational speed, the first output wheel 1431 and the second output wheel 1441 satisfy the meshing condition, and the first output wheel 1431 and the second output wheel 1441 have the same number of teeth, the number of teeth of the first input wheel 1432 is the same as the number of teeth of the first output wheel 1431, and the number of teeth of the second input wheel 1443 is greater than the number of teeth of the second output wheel 1441.

[0142] For example, the first output wheel 1431 and the second output wheel 1441 both have 12 teeth, the first input wheel 1432 has 12 teeth, and the second input wheel 1443 has 36 teeth. At this time, the reduction ratio of the first component 143 is 1:1, and the reduction ratio of the second component 144 is 1:3.

[0143] The first conveyor belt and the second conveyor belt may both be belts, but are not limited thereto.

[0144] According to some optional embodiments, the first roller brush 120 and the second roller brush 130 satisfy at least one of the following: the hardness of the bristles 101 of the first roller brush 120 is less than the hardness of the bristles 101 of the second roller brush 130; the height of the bristles 101 of the first roller brush 120 is greater than the height of the bristles 101 of the second roller brush 130; the density of the bristles 101 of the first roller brush 120 is less than the density of the bristles 101 of the second roller brush 130; the material of the bristles 101 of the first roller brush 120 is different from the material of the bristles 101 of the second roller brush 130; the diameter of the first roller brush 120 is greater than the diameter of the second roller brush 130; the weight of the first roller brush 120 is greater than the weight of the second roller brush 130.

[0145] The height of the bristles 101 of the first roller brush 120 is higher, and large particles are easier to squeeze into the suction port 170, and the large particles are not easily stuck, so it is easier to achieve suction of large particles. Large particles include but are not limited to soybeans, melon seed shells, etc.

[0146] Exemplarily, the bristles 101 of the first roller brush 120 are made of plastic, and the bristles 101 of the second roller brush 130 can be made of nylon. In addition, the bristles 101 of the first roller brush 120 and the bristles 101 of the second roller brush 130 can also be polyester, polyamide, polypropylene, etc. or any suitable material known in the art.

[0147] Generally, the bristles 101 of the second rolling brush 130 with higher hardness are more likely to pick up the surface to be cleaned that has stronger adhesion to the surface to be cleaned or has thicker dirt accumulation.

[0148] In the disclosed embodiment, the performance and material of the bristles 101 of the two roller brushes can be changed according to different usage scenarios to meet different needs.

[0149] like FIG. 2B to FIG. 2E As shown, according to some optional embodiments, the shell 110 also has a suction port 170 and a first air duct 160, the suction port 170 is connected to the first air duct 160, and the suction port 170 is adjacent to the first roller brush 120; the inner wall of the suction port 170 is defined by a liquid storage tank 171, the liquid storage tank 170 is located in the suction port 170, and the liquid storage tank 171 has an opening, and the opening of the liquid storage tank 171 faces the first air duct 160.

[0150] In the disclosed embodiment, the suction port 170 is an extension of the first air duct 160 at the first roller brush 120 .

[0151] The liquid storage tank 171 is located in the suction port 170 and faces the first air duct 160. When the cleaning device is turned off and / or the floor brush structure 100 is lifted, the liquid remaining in the first air duct 160 will not flow to the surface to be cleaned or the cleaned surface through the suction port 170, but will be temporarily stored in the liquid storage tank 171. When the cleaning device is turned on again, the liquid temporarily stored in the liquid storage tank 171 will be sucked away and returned to the sewage tank 330.

[0152] The opening 171a of the liquid storage tank 171 faces the first air duct 160, and the dirt that flows back in the first air duct 160 can be better stored inside the liquid storage tank 171 through the opening 171a of the liquid storage tank 171, reducing the possibility of the refluxed dirt flowing out of the liquid storage tank 171, thereby further improving the recovery effect of the refluxed dirt and further reducing the problem of secondary contamination of the surface after cleaning.

[0153] like Figure 2B and Figure 2C As shown, the projection of the tank wall of the liquid storage tank 171 along the vertical direction is at least partially located within the projection of the inlet 161 of the first air duct 160 along the vertical direction, and the projection of the opening 171a of the liquid storage tank 171 along the vertical direction is located within the projection of the inlet 161 of the first air duct 160 along the vertical direction.

[0154] like FIG. 2B to FIG. 2D As shown, according to some optional embodiments, the inner wall of the suction port 170 includes a partition 180 and a bottom plate 190, the partition 180 and the bottom plate 190 together form a groove wall of the liquid storage tank 171, and the partition 180 is at least partially located above the bottom plate 190 to separate the liquid storage tank 171 in the suction port 170.

[0155] The partition 180 and the bottom plate 190 together define a liquid storage tank 171. This method of using the space inside the suction port 170 to construct the liquid storage tank 171 can not only reduce the risk of dirt stored in the liquid storage tank 171 overflowing after the cleaning equipment is vibrated, but also can make full use of the space inside the suction port 170. The capacity of the liquid storage tank 171 has a large adjustable space.

[0156] The partition 180 and the bottom plate 190 may be integral components, for example, the partition 180 and the bottom plate 190 are integrally formed components. Alternatively, the partition 180 and the bottom plate 190 may be two separate components. FIG. 2B to FIG. 2D The partition 180 and the bottom plate 190 are shown as separate parts.

[0157] For example, Figure 2D As shown, the partition 180 includes a first portion 181 and a second portion 182 located in the suction port 170, and the second portion 182 is located between the first portion 181 and the first air duct 160; wherein the first portion 181 is mounted on the bottom plate 190, and a liquid storage tank 171 located in the suction port 170 is formed between the second portion 182 and the bottom plate 190. In this example, the liquid storage tank 172 is specifically formed by the second portion 182 of the partition 180 and the bottom plate 190. Figure 2D As shown, the second part 182 includes: a first end 1822 connected to the first part 181, a second end 1821 and a continuous connecting part 1823 connecting the first end 1822 and the second end 1821, and the connecting part 1823 forms the top wall of the liquid storage tank 171, wherein the distance between the top wall of the liquid storage tank 171 and the bottom plate 190 gradually increases from the first end 1822 to the second end 1821, and this structure of the connecting part 1823 can more effectively limit the outflow of the liquid entering the liquid storage tank 171. It can be understood that the side wall of the liquid storage tank 171 can also be formed by the connecting part 1823, or the side wall of the liquid storage tank 171 can be formed by a part of the housing 110 of the floor brush structure. The side wall, top wall and bottom plate 190 of the liquid storage tank 171 together define the opening of the liquid storage tank 171.

[0158] The second end 1821 is the opening of the liquid storage tank 171 , and the distance between the connecting portion 1823 and the bottom plate 190 gradually increases from the first end 1822 to the second end 1821 , so that the opening area at the second end 1821 will be larger, which is more conducive to the liquid in the first air duct 160 entering the liquid storage tank 171 .

[0159] According to some optional embodiments, Figure 2F As shown, the length L between the second portion 182 and the first portion 181 along the parallel direction of the first roller brush 120 and the second roller brush 130 (i.e., the horizontal direction) is 7-8 mm, and / or the vertical distance H between the second end 1821 of the second portion 182 and the bottom plate 190 is 3-4 mm. For example, the length L of the second portion 182 along the parallel direction of the first roller brush 120 and the second roller brush 130 is 7.11 mm, and the vertical distance H between the second end 1821 and the bottom plate 190 is 3.79 mm.

[0160] like Figure 2B and Figure 2C As shown, according to some optional embodiments, the edge 161a of the inlet 161 is inclined toward the suction port 170, and the partition 180 has an inclined surface 182a inclined toward the first air duct 160, wherein the projection of the highest point M of the edge of the inlet 161 in the vertical direction is located on the inclined surface 182a. The liquid storage tank 171 is adjacent to the lowest point N of the edge 161a. When the cleaning device is in working state, the inclination of the edge 161a can make the dirt in the first air duct 160 better fall along its inner wall through the highest point of the edge 161a to the inclined surface 182a, and the inclined surface 182a can continue to guide the dirt to the outlet end of the suction port 170, reducing the dirt residue in the suction port 170 and reducing the dirt residue in the liquid storage tank 171. When the cleaning device is in a stopped state, since the edge 161a is inclined and the liquid storage tank 171 is adjacent to the lowest point N of the edge 161a, the dirt flowing back in the first air duct 160 will first reach the lowest point of the bottom edge 161a and then reach the highest point M of the edge 161a, thereby allowing more dirt to enter the liquid storage tank 171.

[0161] According to some optional embodiments, the partition 180 is reused as a wheel plate for fixing the roller; and / or the bottom plate 190 has an outer surface opposite to the surface to be cleaned.

[0162] The wheel plate can be used to fix the roller and also to form the liquid storage tank 171 , thereby improving the utilization rate of the wheel plate and helping to reduce the number of parts of the floor brush structure 100 .

[0163] During the cleaning process, the cleaning device is pushed and pulled along the travel direction by rolling the roller on the surface to be cleaned, which can further reduce the bulkiness of the cleaning device and facilitate cleaning.

[0164] Similarly, the bottom plate in the shell 110 can not only shield some components inside the floor brush structure 100 to protect them, but can also be used to form a liquid storage tank 171, which is conducive to streamlining the floor brush structure 100.

[0165] In some embodiments, the bottom plate can also be reused as part of the suction port wall of the suction port 170 .

[0166] The embodiment of the present disclosure further provides a cleaning device, comprising: the floor brush structure 100 described in any of the above embodiments, a body frame 310 and a suction member 320. The body frame 310 is pivotally connected to the floor brush structure 100; and the suction member 320 is mounted on the body frame 310.

[0167] The suction member 320 is used to provide suction force for sucking dirt during the cleaning process. Exemplarily, the suction member 320 includes: a suction fan, which generally includes a motor and an impeller structure connected to the rotating shaft of the motor.

[0168] The cleaning device includes the floor brush structure 100 , and thus the cleaning device has the same beneficial effects as the floor brush structure 100 .

[0169] like Figure 2A and Figure 2F As shown, according to some optional embodiments, the cleaning device includes: a water tank assembly 340 and a roller brush window 341, the water tank assembly 340 is installed on the floor brush structure 100; the roller brush window 341 connects the floor brush structure 100 and the water tank assembly 340 to be reused as a window of the water tank in the water tank assembly 340; wherein the water tank assembly 340 is a clean water tank assembly 340 or a dirty water tank 330 assembly.

[0170] By installing the water tank assembly 340 on the floor brush structure 100 instead of on the body frame 310, the water tank window and the roller brush window 341 in the water tank assembly 340 can be combined into one, saving space for the cleaning equipment and reducing the weight of the cleaning equipment.

[0171] Exemplarily, the roller brush window 341 is a transparent member, for example, the roller brush window 341 is a transparent plastic plate.

[0172] In some embodiments, the water tank assembly 340 installed on the floor brush structure 100 is a clean water tank assembly 340 , and the cleaning device further includes: a sewage tank 330 assembly, and the sewage tank 330 assembly is installed on the body frame 310 .

[0173] like Figure 2H to Figure 2K As shown, according to some optional embodiments, the cleaning device also includes: a base 200, the base 200 has a containing chamber 212 that supports the floor brush structure 100, and a water channel 240 that contains a cleaning liquid, the water channel 240 includes a water inlet 243 and a water outlet 244, and the water channel 240 is connected to the containing chamber 212 through the water outlet 244; when the floor brush structure 100 is located in the containing chamber 212, the water inlet 243 is connected to the water outlet hole 104 of the floor brush structure 100, and the water outlet 244 is adjacent to the second roller brush 130, and the second roller brush 130 is located between the first roller brush 120 and the water outlet 244.

[0174] The base 200 is used for cleaning and drying the roller brush when the cleaning device is in the self-cleaning mode.

[0175] The cleaning parts such as the roller brush, the body frame 310, and the suction member 320 are separated from the base 200 during the non-self-cleaning mode (for example, during the cleaning of the surface to be cleaned); during the self-cleaning mode, the above cleaning parts are connected to the base 200. Figure 2G to Figure 2I As shown, the floor brush structure 100 is located in the accommodating bin 212 .

[0176] like Figure 3D As shown, the arrow direction is the flow direction of the cleaning liquid. Generally, the water channel 240 can be connected to the clean water tank through the pipeline in the housing 110. The cleaning liquid in the clean water tank flows into the water channel 240 through the water outlet 104 on the floor brush structure 100 through the pipeline, and then flows into the receiving chamber 212 through the water outlet 244 of the water channel 240. The rotating roller brush in the receiving chamber 212 uses the cleaning liquid for self-cleaning.

[0177] The cleaning liquid may be a mixture of water and a cleaning agent, or the cleaning liquid may be water, but is not limited thereto.

[0178] The water outlet 244 is adjacent to the second roller brush 130, but not the first roller brush 120, and the second roller brush 130 is located between the first roller brush 120 and the water outlet 244. The cleaning liquid flowing out of the water outlet 244 will first clean the second roller brush 130 and then clean the first roller brush 120. Since the second roller brush 130 is located behind the first roller brush 120, and the second roller brush 130 has a water squeezing member 150, there is less dirt on the second roller brush 130 compared to the first roller brush 120. The cleaning liquid after cleaning the second roller brush 130 still has a certain cleaning effect on the first roller brush 120. Therefore, cleaning the second roller brush 130, which is easy to clean, first can ensure the cleaning effect and improve the cleaning efficiency.

[0179] The “connectivity” in the embodiments of the present disclosure may be connectivity with a physical connection structure (such as a pipeline) or connectivity without a physical connection structure.

[0180] For example, Figure 2H , Fig.2I and Figure 3E As shown, the water inlet 243 is arranged relative to the water outlet 104 on the floor brush structure 100, so that the cleaning liquid flowing out of the water outlet 104 can flow into the water inlet 243 under the action of inertia. Figure 2H and Figure 3E The arrow in the middle points to the direction of flow of the cleaning liquid. In this manner, no physical connection structure is provided between the water inlet 243 and the water outlet 104.

[0181] like Figure 3F As shown, according to some optional embodiments, the storage bin 212 includes: a first area 2122, a second area 2121 and a third area 2123. The first area 2122 is opposite to the suction port 170; the second area 2121 is located between the water inlet 243 and the first area 2122, and the bottom surface of the second area 2121 gradually decreases from the water inlet 243 to the first area 2122; the third area 2123 is located between the first area 2122 and the water outlet 244, and the bottom surface of the third area 2123 gradually decreases from the water outlet 244 to the first area 2122.

[0182] like Figure 3F As shown by the arrow in the middle, in the arrow, in the same arrow, one end of the arrow represents low, and the opposite end of the arrow represents high.

[0183] The first area 2122 is the lowest area of ​​the storage bin 212, and the liquids in the second area 2121 and the third area 2123 will flow into the first area 2122 and temporarily gather in the first area 2122. Since the first area 2122 is opposite to the suction port 170, when the device is turned on, the cleaning device can suck the liquid in the first area 2122 into the sewage tank 330 in time, thereby reducing the residual water stains in the storage bin 212, improving the cleaning effect of the roller brush, and facilitating faster drying of the roller brush.

[0184] In some embodiments, among various positions of the first region 2122 , the center position of the first region 2122 has the lowest height.

[0185] In some embodiments, the center line of the first roller brush 120 is the lowest point of the bottom surface of the accommodating bin 212 .

[0186] In the embodiment of the present disclosure, the first area 2122, the second area 2121 and the third area 2123 are all located between the water inlet 243 and the water outlet 244 of the water channel 240. Even if liquid leakage occurs when the water outlet hole 104 of the floor brush structure 100 delivers cleaning liquid to the water inlet 243, the leaked liquid will first enter the second area 2121, thereby reducing the possibility of the cleaning liquid flowing to other locations outside the water channel and the containing chamber 212.

[0187] When the floor brush structure 100 is located on the base 200 , the first region 2122 and the second region 2121 may both be located below the first rolling brush 120 , and the third region 2123 may be located below the second rolling brush 130 .

[0188] like Fig.2I , Figure 3B , Figure 3C , Figure 3G and FIG. 3I to FIG. 3NAccording to some optional embodiments, the base 200 includes: a first shell 210 and a second shell 220, the first shell 210 has a bin wall 211 and a channel wall 2421; wherein the bin wall 211 defines a accommodating bin 212, and the channel wall 2421 defines a groove 251 with an opening on one side, and the channel wall 2421 is located at the outer edge of the bin wall 211; the second shell 220 is connected to the first shell 210 and covers the opening of the groove 251 to form a waterway channel 240.

[0189] The groove 251 formed by the channel wall 2421 in the first housing 210 is a part of the waterway channel 240. Figure 3K As shown, the upper end of the groove 251 is open and can contain cleaning liquid. Figure 3J As shown, the second shell 220 can cover the opening of the groove 251, so that the groove 251 is hidden in the second shell 220, thereby reducing the problem of the cleaning liquid in the groove 251 being exposed to the outside for a long time and spilling dust, which is difficult to clean.

[0190] like Figures 2I to 2K ,as well as Fig. 3I and Figure 3J As shown, according to some optional embodiments, the base 200 further includes: a third housing 230 and a hair dryer 260. The third housing 230 and the second housing 220 together form a second air duct 250, and the second air duct 250 and the receiving bin 212 are respectively located on opposite sides of the first housing 210, and the second air duct 250 is communicated with the receiving bin 212; the air outlet of the hair dryer 260 is communicated with the air inlet of the second air duct 250.

[0191] The second shell 220 can be used to form the water channel 240 and the second air duct 250 , which is beneficial to simplify the structure and save space on the base 200 .

[0192] The hair dryer 260 blows air into the second air duct 250 through the air inlet, and the airflow then enters the storage chamber 212 through the second air duct 250, and the airflow can dry the roller brush in the storage chamber.

[0193] The gap between the second housing 220 and the third housing 230 serves as the second air duct 250. The direction of the airflow blown out by the blower 260 can be seen in Figures 3H to 3J In the direction indicated by the arrow.

[0194] Exemplarily, the second air duct 250 includes a bottom air duct located at the bottom of the first housing 210, and side air ducts located at the side edges of the first housing 210. Figure 3H As shown, the airflow generated by the hair dryer 260 first enters the bottom air duct. Fig. 3I As shown in the figure, the fluid in the bottom duct then enters the side ducts on both sides. Figure 3JAs shown, the side air duct is connected to the containing chamber 212, and the fluid enters the containing chamber 212 through the side air duct.

[0195] like Figure 3H As shown, according to some optional embodiments, the base 200 further includes: a heating element 270 located between the air outlet and the air inlet of the hair dryer 260 .

[0196] The heating element 270 can change the relatively cool airflow blown out by the hair dryer 260 into relatively hot airflow, thereby improving the drying efficiency of the roller brush. Exemplarily, the heating element 270 is a PTC (Positive Temperature Coefficient) heater.

[0197] like Figure 3J and Figure 2J As shown, according to some optional embodiments, the base 200 further includes: a sealing member 280 , wherein the sealing member 280 is located between the channel wall 2421 and the second shell 220 to achieve a sealed connection between the second shell 220 and the channel wall 2421 .

[0198] The sealing member 280 can reduce the leakage of the cleaning liquid in the water channel 240 from between the second housing 220 and the channel wall 2421 , thereby improving the sealing performance of the water channel 240 .

[0199] like Fig.2I and Figure 3E As shown, according to some optional embodiments, the water channel 240 includes: a cavity 241 and a channel 242, the cavity 241 is connected to the water inlet 243, and is used to temporarily store the cleaning liquid entering through the water inlet 243; the channel 242 is connected to the cavity 241 and the water outlet 244, and is used to guide the cleaning liquid to the water outlet 244.

[0200] The cavity 241 can temporarily store cleaning liquid, thereby reducing the problem of splashing when the cleaning liquid flows from the water outlet 104 of the floor brush structure 100 to the water channel 240 and overflowing from the water inlet 243 .

[0201] like Figure 3E As described above, the inner diameter of the water inlet 243 is much larger than the inner diameter of the water outlet 104 of the floor brush structure 100 , and the water outlet 104 is roughly aligned with the center position of the water inlet 243 .

[0202] The channel 242 may be located below the accommodating cavity, and the cavity 241 is an extension of the channel 242 at a side edge of the accommodating bin 212 .

[0203] like Figures 3A to 3D , Figure 3F and Figure 3H ,as well as Figure 3MAs shown, according to some optional embodiments, the housing forms a storage bin 212 with a protrusion 213 on the bin wall 211 thereof, which protrudes toward the floor brush structure 100 , and the protrusion 213 is adjacent to the water outlet 244 .

[0204] The protrusion 213 is adjacent to the water outlet 104 and is located below the second roller brush 130. The protrusion 213 can improve the cleaning effect of the second roller brush 130 by rubbing and squeezing the second roller brush 130. Moreover, the protrusion 213 also plays a role in drainage and dispersion. After the cleaning liquid enters the receiving chamber 212 from the water outlet 244, it can be more evenly dispersed under the action of the protrusion 213, so that the entire surface of the rotating second roller brush 130 can be in contact with the cleaning liquid, thereby improving the cleaning effect.

[0205] The protrusion 213 may be located in the third area 2123 of the accommodating bin 212 .

[0206] In some embodiments, in the longitudinal direction from the water outlet 244 to the water outlet 244 , the distance between every two adjacent protrusions 213 is smaller than the diameter of a single protrusion 213 .

[0207] According to some optional embodiments, the bottom height of the water channel 240 gradually decreases from the water inlet 243 to the water outlet 244 .

[0208] The water channel 240 has a certain slope, and the slope decreases from the water inlet 243 to the water outlet 244 . This method can push the cleaning liquid to flow from the water inlet 243 to the water outlet 244 , effectively reducing or removing the cleaning liquid residue in the water channel 240 .

[0209] like Figure 3D As shown, the bottom height of the waterway channel 240 gradually decreases along the direction of the arrow.

[0210] As shown in FIG. 2K2I, according to some optional embodiments, there is a gap 214 between the bottom surface of the accommodating bin 212 and the rubber strip 103 at the bottom of the floor brush structure 100; wherein the rubber strip 103 is used to fit with the surface to be cleaned during the cleaning process.

[0211] The gap 214 between the bottom surface of the accommodating chamber 212 and the rubber strip 103 at the bottom of the floor brush structure 100 can allow cleaning liquid to pass through when cleaning the roller brush, and can also allow airflow to pass through when drying the roller brush.

[0212] The bottom surface of the storage bin 212 includes a bin wall 211. The rubber strip 103 may be disposed adjacent to the suction port 170 and adjacent to the first roller brush 120. The rubber strip 103 may be mounted on the bottom plate of the floor brush structure 100. During the cleaning process, the rubber strip 103 is attached to the surface to be cleaned, which can not only further scrape off dirt on the surface to be cleaned, but also form a certain vacuum degree at the suction port 170 with the roller brush and the surface to be cleaned, so as to facilitate the suction of dirt.

[0213] The gap 214 between the bottom surface of the receiving chamber 212 and the bottom surface of the floor brush structure 100 should not be too small. If it is too small, the cleaning liquid cannot pass through and flow to the first roller brush 120, and the drying time of the first roller brush 120 will also be longer; if this gap 214 is too large, the vacuum degree is not enough when sucking the cleaning liquid, and a large amount of liquid will remain in the receiving chamber 212 after the self-cleaning is completed.

[0214] Generally, the rubber strip 103 can also be called a leather strip.

[0215] like Figure 2C As shown, the liquid storage tank 170 is located between the rubber strip 103 and the first air duct 160. Exemplarily, the first air duct 160 is formed by a hose, and the liquid storage tank 170 is located between the rubber strip 103 and the hose forming the first air duct 160.

[0216] In one example, the cleaning device is a floor scrubber, and the floor brush structure of the floor scrubber includes a front roller brush (i.e., a first roller brush 120) and a rear roller brush (i.e., a second roller brush 130). A motor is used to output two motor shafts (respectively, the first output shaft 1421 and the second output shaft 1422) to respectively drive the rotation of the front roller brush and the rear roller brush. Among them, there are two 12-tooth gears on the two motor shafts, the pulley on the front roller brush (the first input wheel 1432) has 12 teeth, and the pulley on the rear roller brush (referring to the second input wheel 1443) has 36 teeth. The gears on the two motor shafts and the two pulleys are each connected by a belt, that is, one motor shaft is connected to the 12-tooth pulley on the front roller brush through a belt, and the other motor shaft is connected to the 36-tooth pulley on the rear roller brush through another belt.

[0217] The motor shaft output speed is 2000r / min, which is transmitted to the front and rear brushes through belts. The front brush has a reduction ratio of 1:1 and the rear brush has a reduction ratio of 1:3, so that the front brush rotates at a high speed (about 2000r / min) and the rear brush rotates at a low speed (about 700r / min). The motor is fixed on the motor bracket.

[0218] The height of the bristles of the front roller brush is about 15mm, and there is no water squeezing steel bar (i.e., water squeezing part 150) at the suction port near the front roller brush. The height of the bristles of the rear roller brush is about 8mm, and a water squeezing steel bar is designed near the rear roller brush. The water squeezing steel bar and the rear roller brush are in interference, and the dirty water on the ground is wiped off by the high rear roller brush, and then the roller brush is squeezed dry by the steel bar, and the dirt enters the sewage tank of the whole machine through the first air duct. The front roller brush has tall bristles, which makes it easy for large particles to enter. Without the water squeezing steel bar, the hair particles will not be stuck, and the suction port is not easy to be blocked; the rear roller brush is designed with a water squeezing steel bar, and the rear roller brush is drier, and there is no water stain on the ground. The front roller brush and the rear roller brush are not only different in bristle height, but also in material. The material of the front roller brush is relatively soft, and the rear roller brush is made of high density similar to nylon.

[0219] At the suction port, the bottom plate and the wheel plate are spliced ​​into a water storage tank, i.e., a liquid storage tank. When the whole machine is turned off, the residual water on the inner wall of the pipeline (i.e., the first air duct 160) of the cleaning equipment will be stored in the liquid storage tank and will not drip onto the ground. Since the liquid storage tank is inside the suction port, when the machine is turned on again, the water in the liquid storage tank will be sucked into the sewage tank.

[0220] The front roller brush rotates forward, and the rear roller brush rotates in the opposite direction. The whole machine is powered when pushed and pulled, making it easier to use. The front roller brush rotates at high speed, and the amount of interference between the front roller brush and the ground is small. The rear roller brush rotates at low speed, and the amount of interference between the rear roller brush and the ground is large. By adjusting the amount of interference between the roller brush and the ground, the power of the front and rear roller brushes is balanced. The front roller brush has a high rotation speed, but since there is no scraper bar to scrape its own sewage, the resistance is small during rotation, and the energy loss is small.

[0221] The clean water tank assembly is designed on the floor brush structure. The clean water tank window, front roller brush window and rear roller brush window in the clean water tank assembly are designed as one, reducing separate front and rear windows, reducing parts, and lowering costs. After lifting the clean water tank assembly, the floor brush structure can be taken out together.

[0222] The cleaning device including the floor brush structure is placed on a charging base (i.e., the base 200 in the above embodiment), and the base has a storage bin and a water channel. The storage bin on the base is positioned so that the water sprayed from the nozzle of the cleaning device (i.e., the water outlet hole of the floor brush structure) is aligned with the water inlet of the water channel.

[0223] The storage compartment can be used as an external leakage air duct structure and also as a positioning unit for the entire device in the charging base.

[0224] After the cleaning equipment is powered on, press the roller brush self-cleaning button, the roller brush self-cleaning mode starts, and the water outlet of the floor brush assembly starts to spray water. At this time, the water volume is controlled by the program to control the water spraying time. The water volume must be able to evenly wet the roller brush for cleaning, and ensure that the sewage tank water full alarm does not occur after the roller brush self-cleaning is completed.

[0225] The water channel includes a cavity and a channel. The water outlet of the floor brush structure is in a specific cavity in front of the charging station, where water gathers briefly and then enters the channel of the water channel; the water flows along the channel of the water channel to the two sides of the storage chamber, and converges behind the rear roller brush, and then is evenly dispersed at the rear roller brush.

[0226] The entire waterway channel has a slope (the slope gradually decreases in the direction indicated by the arrow), and the slope is designed to be maximized as much as possible, which can effectively reduce or remove residual water in the waterway and push the water to move forward quickly.

[0227] The width and slope of the water channel have been verified to be the best state after multiple prototype tests; the width of the water channel is closely related to the water volume of the cleaning equipment.

[0228] The rear roller brush uses specially arranged raised balls (i.e., the raised balls in the above-mentioned embodiment) to ensure that each part of the rear roller brush has sufficient friction with the raised balls, and that the red water flowing out from the red position in the figure below quickly flows and disperses to the left and right sides, so that the water is evenly distributed on the surface of the rear roller brush (in the longitudinal direction, the distance between every two adjacent raised balls is less than the diameter of a single ball); the bottom surface of the cleaning disk has a special inclination angle.

[0229] The position of the raised ball on the cleaning plate (i.e., the first shell 210 on the base) is where the rear roller brush is located. This is the highest point on the bottom of the cleaning plate. The slope and height here are used to rub and squeeze the rear roller brush while cleaning the rear roller brush. The water cleaned by the rear roller brush flows forward along the slope to the front roller brush. The center line of the front roller brush is the lowest point on the bottom of the cleaning plate. The bottom of the cleaning plate slowly rises again along this center line toward the front bottom surface, so that the water gathers at the center line of the front roller brush.

[0230] The suction port of the cleaning equipment is at the front roller brush, and the moisture after self-cleaning of the whole machine is also gathered at the front roller brush. This design is more conducive to the sewage in the morning after cleaning being sucked away by the whole machine.

[0231] The slope of the bottom surface of the storage bin needs to take into account the leather strip at the bottom of the floor brush structure, so that there is a specific gap between it and the leather strip. This gap can allow moisture to flow through and hot air to pass through when the roller brush is dried after cleaning.

[0232] If this interval is too small, moisture cannot pass through and flow to the front roller brush, and the drying time of the front roller brush will also be longer; if this interval is too large, the vacuum degree is insufficient, and a large amount of moisture will remain on the cleaning plate after self-cleaning is completed.

[0233] The water channel is designed on the gray part, and then the gray part is assembled on the second shell of the charging base through a seal, and the water channel is hidden under the second shell. This can not only ensure the realization of the previous functions, but also make the overall appearance of the charging base simple, neat and clean, and can also avoid the water channel being exposed to dust for a long time and difficult to clean.

[0234] After the roller brush is finished cleaning, the PTC starts to work and generate and dissipate heat, and the blower (i.e., hair dryer) starts to work synchronously to generate air volume and start blowing; the air generated by the blower passes through the PTC at the pink part, and the cold air turns into hot air. The hot air moves forward into the second air duct on the back of the first housing and along Figure 3H The hot air moves in the direction of the arrows. Fig. 3I and Figure 3J Move in the direction of the arrow.

[0235] The water channel and the second air duct are both designed on one part (ie, the first shell).

[0236] The front roller brush has high bristles and rotates at high speed, without a water-squeezing steel bar, so large particles can easily enter and the suction port will not be blocked. The rear roller brush rotates at a low speed with a water-squeezing steel bar, which makes the floor cleaner without leaving any water stains, achieving a cleaner cleaning with suction in front and wiping in the back.

[0237] Under the premise of no conflict, different embodiments or different technical features of the present disclosure can be arbitrarily combined to form new embodiments.

[0238] It should be understood that the above embodiments are exemplary and are not intended to include all possible implementations included in the claims. Various modifications and changes may be made on the basis of the above embodiments without departing from the scope of the present disclosure. Similarly, the various technical features of the above embodiments may be arbitrarily combined to form other embodiments of the present invention that may not be explicitly described. Therefore, the above embodiments only express several implementations of the present invention and do not limit the scope of protection of the patent of the present invention.

Claims

1. A floor brush structure, characterized in that: The floor brush structure (100) comprises: Housing (110); A power assembly (140) is located on the housing (110); A first roller brush (120) connected to the power assembly (140); a second roller brush (130) connected to the power assembly (140); wherein, in the moving direction of the cleaning process, the second roller brush (130) is located behind the first roller brush (120), the rotation direction of the first roller brush (120) is the moving direction, and the rotation direction of the second roller brush (130) is opposite to the rotation direction of the first roller brush (120); The speed at which the power component (140) drives the first roller brush (120) to rotate is faster than the speed at which the power component (140) drives the second roller brush (130) to rotate.

2. The floor brush structure according to claim 1, characterized in that: The floor brush structure (100) further comprises: A water squeezing member (150) is connected to the housing (110), the water squeezing member (150) is in contact with the second rolling brush (130), and the water squeezing member (150) is used to remove liquid on the second rolling brush (130).

3. The floor brush structure according to claim 1, characterized in that: The power assembly (140) comprises: A rotating driving member (141) for providing a driving force; A transmission mechanism (142) connected to the rotating drive member (141), the transmission mechanism (142) comprising a first output shaft (1421) and a second output shaft (1422); The deceleration component comprises a first component (143) respectively connected to the first output shaft (1421) and the first roller brush (120), and a second component (144) respectively connected to the second output shaft (1422) and the second roller brush (130).

4. The floor brush structure according to claim 3, characterized in that: The first component (143) comprises: A first output wheel (1431), connected to the first output shaft (1421); A first input wheel (1432) connected to the first roller brush (120); The first transmission belt (1433) is respectively connected to the first output wheel (1431) and the first input wheel (1432; wherein the teeth of the first output wheel (1431) and the teeth of the first input wheel (1432) meet a meshing condition, and the number of teeth of the first output wheel (1431) is the same as or different from the number of teeth of the first input wheel (1432); and / or, The second component (144) includes: A second output wheel (1441), connected to the second output shaft (1422); A second input wheel (1443) connected to the second roller brush (130); A second transmission belt (1442), respectively connecting the second output wheel (1441) and the second input wheel (1443); The teeth of the second output wheel (1441) and the teeth of the second input wheel (1443) meet the meshing condition, and the number of teeth of the second output wheel (1441) is less than the number of teeth of the second input wheel (1443).

5. The floor brush structure according to claim 1, characterized in that: The first roller brush (120) and the second roller brush (130) satisfy at least one of the following conditions: The bristle hardness of the first rolling brush (120) is smaller than the bristle hardness of the second rolling brush (130); The bristle height of the first roller brush (120) is greater than the bristle height of the second roller brush (130); The bristle density of the first roller brush (120) is smaller than the bristle density of the second roller brush (130); The material of the bristles of the first roller brush (120) is different from the material of the bristles of the second roller brush (130); The diameter of the first roller brush (120) is greater than the diameter of the second roller brush (130); The weight of the first roller brush (120) is greater than the weight of the second roller brush (130).

6. The floor brush structure according to claim 2, characterized in that: The housing (110) further comprises a suction port (170) and a first air duct (160), wherein the suction port (170) is in communication with the first air duct (160), and the suction port (170) is adjacent to the first roller brush (120); The inner wall of the suction port (170) defines a liquid storage tank (171), the liquid storage tank (171) is located inside the suction port (170), and the liquid storage tank (171) has an opening, and the opening of the liquid storage tank (171) faces the first air duct (160).

7. The floor brush structure according to claim 6, characterized in that: The projection of the tank wall of the liquid storage tank (171) along the vertical direction is at least partially located within the projection of the inlet (161) of the first air duct (160) along the vertical direction, and the projection of the opening (171a) of the liquid storage tank (171) along the vertical direction is located within the projection of the inlet (161) of the first air duct (160) along the vertical direction.

8. The floor brush structure according to claim 7, characterized in that: The inner wall of the suction port (170) comprises a partition (180) and a bottom plate (190), the partition (180) and the bottom plate (190) together forming a groove wall of the liquid storage tank (171), and the partition (180) is at least partially located above the bottom plate (190) to separate the liquid storage tank (171) in the suction port (170); Preferably, the separator (180) comprises: a first portion (181) and a second portion (182) located in the suction port (170), wherein the second portion (182) is located between the first portion (181) and the first air duct (160); wherein the first portion (181) is mounted on the bottom plate (190), and the liquid storage tank (171) is formed between the second portion (182) and the bottom plate (190); The second part (182) comprises: a first end (1822) connected to the first part (181), a second end (1821), and a connecting part (1823) connecting the first end (1822) and the second end (1821); the connecting part (1823) forms the top wall of the liquid storage tank (171), wherein the distance between the top wall of the liquid storage tank (171) and the bottom plate (190) gradually increases from the first end (1822) to the second end (1821); Preferably, the length of the second part (182) along the parallel direction of the first roller brush (120) and the second roller brush (130) and the first part (181) is 7-8 mm, and / or the vertical distance between the second end (1821) of the second part (182) and the bottom plate (190) is 3-4 mm; Preferably, the edge (161a) of the inlet (161) is inclined toward the suction port (170), and the partition (180) has an inclined surface (182a) inclined toward the first air duct (160), wherein the projection of the highest point of the edge of the inlet (161) along the vertical direction is located on the inclined surface (182a); Preferably, the separator (180) is reused as a wheel plate, and the wheel plate is used to fix the roller; Preferably, the floor brush structure further comprises: a rubber strip (103) adjacent to the suction port (170) and the first roller brush (120), and the liquid storage tank (171) is located between the rubber strip (103) and the hose forming the first air duct (160).

9. A cleaning device, characterized in that: The cleaning equipment comprises: The floor brush structure (100) according to any one of claims 1 to 18; A body frame (310) pivotally connected to the floor brush structure (100); The suction piece (320) is mounted on the fuselage frame (310).

10. The cleaning device according to claim 9, characterized in that The cleaning device also includes: A water tank assembly (340) mounted on the floor brush structure (100); A roller brush window (341) is connected to the floor brush structure (100) and the water tank assembly (340) so as to be reused as a window of the water tank in the water tank assembly (340); wherein the water tank assembly (340) is a clean water tank assembly or a dirty water tank assembly; Preferably, the cleaning device further comprises: a base (200), the base (200) having a receiving chamber (212) for carrying the floor brush structure (100), and a water channel (240) for receiving cleaning liquid; The water channel (240) comprises a water inlet (243) and a water outlet (244), and the water channel (240) is connected to the containing chamber (212) through the water outlet (244); When the floor brush structure (100) is located in the accommodating chamber (212), the water inlet (243) is connected to the water outlet (104) of the floor brush structure (100), the water outlet (244) is adjacent to the second roller brush (130), and the second roller brush (130) is located between the first roller brush (120) and the water outlet (244); Preferably, the containing chamber (212) comprises: A first area (2122), opposite to the suction port (170); a second area (2121) located between the water inlet (243) and the first area (2122), wherein the bottom surface of the second area (2121) gradually decreases from the water inlet (243) toward the first area (2122); a third area (2123) located between the first area (2122) and the water outlet (244), wherein the bottom surface of the third area (2123) gradually decreases from the water outlet (244) toward the first area (2122); Preferably, the base (200) comprises: The first housing (210) has a bin wall (211) and a channel wall (2421); wherein the bin wall (211) defines the accommodating bin (212), the channel wall (2421) defines a groove (251) with an opening on one side, and the channel wall (2421) is located at the outer edge of the bin wall (211); A second housing (220) connected to the first housing (210) and covering the opening of the groove (251) to form the waterway channel (240); Preferably, the base (200) further comprises: a third housing (230), wherein the third housing (230) and the second housing (220) together form a second air duct (250), wherein the second air duct (250) and the containing chamber (212) are respectively located on opposite sides of the first housing (210), and the air duct is in communication with the containing chamber (212); a hair dryer (260), wherein an air outlet of the hair dryer (260) is in communication with an air inlet of the second air duct (250); Preferably, the base (200) further comprises: A heating element (270) is located between the air outlet of the hair dryer (260) and the air inlet; Preferably, the base (200 further includes: A sealing member (280) is located between the channel wall (2421) and the second housing (220) to achieve a sealed connection between the second housing (220) and the channel wall (2421); Preferably, the waterway channel (240) comprises: The cavity (241) is communicated with the water inlet (243) and is used to temporarily store the cleaning liquid entering through the water inlet (243); a channel (242), communicating the cavity (241) and the water outlet (244), and used for guiding the cleaning liquid to the water outlet (244); Preferably, the base (200) has a protrusion (213) on the wall (211) of the accommodating chamber (212) protruding toward the second roller brush (130), and the protrusion (213) is adjacent to the water outlet (244); Preferably, the bottom surface height of the water channel (240) gradually decreases from the water inlet (243) to the water outlet (244); Preferably, there is a gap (214) between the bottom surface of the accommodating bin (212) and the rubber strip (103) at the bottom of the floor brush structure (100); wherein the rubber strip (103) is in contact with the surface to be cleaned during the cleaning process.

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