Floor brush assembly and floor washing machine

Abstract

The utility model provides a floor brush assembly and a floor scrubber, the floor brush assembly comprises a support frame, a rolling brush body and a water squeezing piece, the rolling brush body is rotatably arranged on the support frame; one end of the water squeezing piece is arranged on the supporting frame, the other end of the water squeezing piece is provided with an arc-shaped part, the arc-shaped part is provided with an arc-shaped end face, and the arc-shaped end face faces the rolling brush body and abuts against the peripheral face of the rolling brush body. The minimum distance between the arc-shaped end face and a rotating shaft of the rolling brush body is smaller than the radius of the rolling brush body. According to the floor brush assembly, the arc-shaped end face is arranged on the side, facing the rolling brush body, of the water squeezing piece, the arc-shaped end face is used for squeezing the outer wall face of the rolling brush body and discharging water in the rolling brush body, the arc-shaped end face makes contact with the surface of the rolling brush body, and abrasion to the peripheral face of the rolling brush body can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of floor scrubbers, and in particular to a floor brush assembly and a floor scrubber. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] Family chores and labor are an indispensable part of ordinary people's lives. Mopping the floor takes up a lot of time in family chores and is one of the household chores that many people are bored with.

[0004] With the advent of the intelligent era, robots and smart cleaning products have gradually entered ordinary people's homes. At present, handheld vacuum cleaners that integrate vacuuming, mopping and washing functions have become the mainstream products on the market. With the popularization and promotion of products, users have higher and higher requirements for products. In particular, with the rapid development of vacuum cleaners in recent years, the demand for washing machine bodies has become more and more obvious.

[0005] Currently, floor scrubbers on the market use a metal scraper and roller brush bristles to force the water out of the roller brush. Most of the metal scrapers are made of stainless steel plates with a thickness of 1 mm.

[0006] The metal steel plate is used to forcibly squeeze the roller brush bristles. The stainless steel plate is squeezed and rubbed against the roller brush bristles for a long time, which will quickly wear out the roller brush bristles, resulting in a short life of the roller brush bristles. The rapid wear of the roller brush will cause its outer diameter to become smaller and smaller, and the interference fit between the roller brush and the metal scraper will gradually decrease, eventually resulting in poor water squeezing effect, and even poor mopping effect of the floor scrubber due to unclean scraping. Utility Model Content

[0007] The purpose of the utility model is to at least solve the technical problem that the existing metal steel plate seriously wears the roller brush hair. This purpose is achieved through the following technical solutions:

[0008] A first aspect of the utility model provides a floor brush assembly, the floor brush assembly comprising:

[0009] Support frame;

[0010] A roller brush body, the roller brush body being rotatably disposed on the support frame;

[0011] A water squeezing part, one end of which is arranged on the support frame, and the other end of which has an arc-shaped portion, the arc-shaped portion has an arc-shaped end surface, the arc-shaped end surface faces the roller brush body and abuts against the outer peripheral surface of the roller brush body, wherein the minimum distance between the arc-shaped end surface and the rotation axis of the roller brush body is less than the radius of the roller brush body.

[0012] The floor brush assembly of the utility model is provided with an arc-shaped end face on the side of the water squeezing member facing the roller brush body. The arc-shaped end face is used to squeeze the outer wall surface of the roller brush body to discharge the water in the roller brush body. The arc-shaped end face is in contact with the surface of the roller brush body, which can increase the contact area between the roller brush body and the water squeezing member and reduce the wear of the squeezing member on the outer peripheral surface of the roller brush body.

[0013] The floor brush assembly of the utility model has an arc-shaped end surface of the water squeezing part formed by bending sheet metal, which has the advantages of easy molding and simple structure. The water squeezing part with the arc-shaped end surface is installed on the floor brush assembly, which can be applied to most floor scrubbers. Therefore, the floor brush assembly of the utility model has the advantage of a wide range of applications.

[0014] In addition, the floor brush assembly according to the utility model may also have the following additional technical features:

[0015] In some embodiments of the present invention, the radius of curvature of the arc-shaped end surface is smaller than the radius of curvature of the rolling brush body.

[0016] In some embodiments of the present invention, the curvature radii of the arc-shaped end faces are consistent or inconsistent.

[0017] In some embodiments of the present invention, along the axial direction of the rotating shaft, an extension curve of the rolling brush body is consistent with an extension curve of the arc-shaped end surface.

[0018] In some embodiments of the present invention, the roller brush body has a plurality of shaft segments, and in a plane perpendicular to the shaft segments, the distance between one end of the arc-shaped end surface facing the roller brush body and the rotation axis of the roller brush body is the same or different.

[0019] In some embodiments of the present invention, the water squeezing member comprises a plate-shaped member, and one end of the plate-shaped member is bent to form the arc-shaped portion.

[0020] In some embodiments of the present invention, the planar area of ​​the plate-shaped member and the rotation axis of the roller brush body are in the same horizontal plane.

[0021] In some embodiments of the present utility model, the floor brush assembly further includes a water spray assembly, and the water spray assembly is disposed above the water squeezing member.

[0022] In some embodiments of the present utility model, the floor brush assembly further comprises a comb-tooth bar, wherein the comb-tooth bar is disposed below the water squeezing member, and the tooth ends of the comb-tooth bar are aligned with the arc-shaped end surface.

[0023] A second aspect of the utility model further provides a floor scrubber, the floor scrubber comprising a floor brush assembly as described in any one of the above items. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0025] Figure 1 This is a structural schematic diagram of the floor brush assembly of the utility model applied to a floor scrubber, which shows a support frame and a roller brush body;

[0026] Figure 2 It is a cross-sectional view of the floor scrubber of the utility model, showing the internal structure of the floor scrubber;

[0027] Figure 3 It is a partial structural schematic diagram of the floor scrubber of the utility model, in which the roller brush body is omitted;

[0028] Figure 4 The floor brush assembly of the utility model is shown in the form of a stereogram;

[0029] Figure 5 The floor brush assembly of the utility model is shown in the form of an exploded diagram;

[0030] Figure 6 It is a schematic structural diagram of the water squeezing component, the water spraying component and the comb teeth bar in the floor brush assembly of the utility model;

[0031] Figure 7a It is a structural schematic diagram of the water squeezing member of the utility model;

[0032] Figure 7b for Figure 7a AA section view;

[0033] Figure 8 for Figure 7b Magnified image of .

[0034] Reference numerals

[0035] 100. Floor brush assembly;

[0036] 110. Support frame;

[0037] 120, roller brush body; 121, first shaft section; 122, second shaft section;

[0038] 130. water extruding member; 131. arc-shaped end surface;

[0039] 140. Plate-like member; 141. Planar area;

[0040] 150. Water spray assembly;

[0041] 160, comb teeth;

[0042] 200. Floor scrubber;

[0043] 210. Walking device; 220. Dust collection channel. DETAILED DESCRIPTION

[0044] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0045] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0046] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0047] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0048] The floor brush assembly of the utility model is applied to a floor scrubber and is improved on the floor brush assembly in the floor scrubber of the prior art. It has the advantages of simple structure, long service life and wide application range. The specific analysis is as follows:

[0049] In order to solve the problem of serious wear of the roller brush bristles by the metal steel plate in the existing floor scrubbers, the floor brush assembly of the utility model is provided with an arc-shaped end face on the side of the water squeezing part facing the roller brush body. The arc-shaped end face is in contact with the outer peripheral surface of the roller brush body to squeeze the roller brush body and discharge the water in the roller brush body. The arc-shaped end face has less wear on the outer peripheral surface of the roller brush body, thereby protecting the roller brush body and avoiding the possibility of reduced cleaning effect due to excessive wear of the roller brush body.

[0050] The arc-shaped end face of the water squeezing part of the utility model causes less wear on the roller brush body, which can extend the replacement cycle of the roller brush body in the floor brush assembly, thereby extending the life of the roller brush body, making the floor brush assembly more durable, saving users the trouble of frequent replacement of the floor brush assembly, and improving the user experience.

[0051] The floor brush assembly of the utility model has an arc-shaped end face of a water squeezing part formed by bending a sheet metal. The water squeezing part has a simple structure, is easy to form, is easy to popularize and use on a large scale, and has a low cost. At the same time, the water squeezing part does not have excessive requirements on the thickness of the sheet metal. Sheet metal of any thickness can meet the use requirements of the water squeezing part as long as it meets the rigidity requirements required for extrusion between the arc-shaped end face and the roller brush body. Therefore, the water squeezing part is easy to obtain materials and easy to manufacture.

[0052] In order to enable the water squeezing member to squeeze out the water in the rolling brush body in time, the distance between the end of the arc-shaped end face facing the rolling brush body and the rotating axis of the rolling brush body is set to be smaller than the radius of the rolling brush body. When the rolling brush body rotates on the support frame, the water in the rolling brush body can be squeezed out. The floor brush assembly of the utility model does not need to drive the water squeezing member or the rolling brush body to adjust the distance between the water squeezing member and the rolling brush body. The water squeezing member and the rolling brush body are installed according to their inherent positions to achieve the effect of squeezing water from the rolling brush body for a long time. Therefore, the floor brush assembly of the utility model has a relatively simple structure, and there is no need to set a driving device to change the relative position of the water squeezing member and the rolling brush body.

[0053] Therefore, the floor brush assembly of the utility model has obvious advantages over the metal steel plates in the existing floor scrubbers, and solves multiple problems caused by the metal steel plates to the floor scrubbers.

[0054] The floor brush assembly of the present invention is described in detail below in conjunction with the accompanying drawings. It should be noted that the accompanying drawings and embodiments are only used to explain the present invention and cannot be understood as limiting the present invention.

[0055] Figure 1 FIG. 1 is a schematic diagram of the structure of the floor brush assembly of the utility model applied to a floor scrubber, wherein a support frame and a roller brush body are shown. Figure 1 As shown, the floor scrubber 200 includes a floor brush assembly 100 and a walking device 210, the walking device 210 is connected to the support frame 110 in the floor brush assembly 100, and driven by the walking device 210, the floor scrubber 200 moves along a predetermined route, and the floor brush assembly 100 cleans the floor surface that the floor scrubber 200 passes, wherein the floor brush assembly 100 includes a support frame 110 and a roller brush body 120, and the roller brush body 120 is rotatably disposed on the support frame 110.

[0056] Figure 1 The floor brush assembly and the floor scrubber are only equipped with one roller brush body 120. It can be understood that a plurality of roller brush bodies 120 can be provided in the floor brush assembly 100. The provision of a plurality of roller brush bodies 120 is conducive to cleaning the floor with higher efficiency.

[0057] Figure 2 This is a cross-sectional view of the floor scrubber of the present invention, showing the internal structure of the floor scrubber. Figure 2 As shown, in the floor scrubber 200, the floor brush assembly 100 includes a roller brush body 120 rotatably disposed on a support frame 110, and also includes a water squeezing member 130 abutting against the outer surface of the roller brush body 120. The water squeezing member 130 is disposed on the support frame 110, and the water squeezing member 130 discharges the water in the roller brush body 120 by squeezing the roller brush body 120.

[0058] Combination Figure 7a , Figure 7b as well as Figure 8,in, Figure 7a It is a structural schematic diagram of the water squeezing member of the utility model. Figure 7b for Figure 7a AA section view, Figure 8 for Figure 7b From the enlarged view, it can be seen that the water squeezing member 130 is provided with an arcuate end surface 131 formed by bending the sheet metal, the arcuate end surface 131 faces the roller brush body 120, and abuts against the outer surface of the roller brush body 120; the water squeezing member 130 in the floor brush assembly 100 is squeezed against the roller brush body 120 through the arcuate end surface 131, and the arcuate end surface 131 can protect the roller brush body 120 while squeezing water from the roller brush body 120, thereby reducing the wear of the fluff on the surface of the roller brush body 120.

[0059] Continue to combine Figure 2 The minimum distance between one end of the arcuate end surface 131 of the water squeezing member 130 facing the rolling brush body 120 and the rotation axis of the rolling brush body 120 is L, the radius of the rolling brush body 120 is R2, and L<R2; when the rolling brush body 120 rotates relative to the support frame 110, the outer surface of the rolling brush body 120 is squeezed by the arcuate end surface 131 of the water squeezing member 130, and the water in the rolling brush body 120 is squeezed out.

[0060] like Figure 2 As shown, a dust suction channel 220 is also provided in the floor scrubber 200, and a roller brush body 120 is provided at the lower opening of the dust suction channel 220. The dirt and debris generated by the roller brush body 120 when cleaning the floor are sucked into the dust suction channel 220 and finally collected in the dust box. A dust box can be provided at the upper opening of the dust suction channel 220 to collect the dirt and debris in the dust suction channel 220.

[0061] In one embodiment of the present invention, the curvature radius of the arc-shaped end surface 131 of the water squeezing member 130 is smaller than the curvature radius of the roller brush body 120. Figure 8 As shown, the curvature radius of the arc-shaped end surface 131 of the water extruding member 130 is R1. Figure 1 The curvature radius R1 of the arc-shaped end surface 131 is much smaller than the radius R2 of the roller brush body 120, that is, the space occupied by the arc-shaped end surface 131 of the water squeezing member 130 is much smaller than the space occupied by the roller brush body 120. When the water in the roller brush body 120 is squeezed out, it is easier to be discharged. At the same time, the space occupied by the water squeezing member 130 is smaller, and the floor brush assembly 100 has more space to arrange other components.

[0062] like Figure 2 As shown, a water spray assembly 150 is provided on the upper part of the water squeezing member 130, and a comb tooth bar 160 is provided on the lower part of the water squeezing member 130. The water spray assembly 150 and the comb tooth bar 160 are arranged adjacent to the water squeezing member, and the structure is more compact.

[0063] In one embodiment of the utility model, the arcuate end surface 131 of the water squeezing member 130 can be set to a hemispherical shape, or can be set to an elliptical shape, or a semicircular shape. The designer can arrange the required shape of the arcuate end surface 131 according to actual needs. The arcuate end surfaces 131 of the above-mentioned different forms can all be squeezed with the roller brush body 120 to squeeze out the water in the roller brush body 120, and at the same time protect the surface of the roller brush body 120 to avoid excessive wear of the fluff of the roller brush body 120.

[0064] In an embodiment of the present invention, within a plane where the rotation axis of the rolling brush body 120 is located, along the axial direction of the rotation axis of the rolling brush body 120 , the outer shape of the rolling brush body 120 is consistent with the extension curve of the arc-shaped end surface 131 .

[0065] Combination Figure 1 and Figure 7a The outer surface of the roller brush body 120 is cylindrical, and the arcuate end surface 131 of the water squeezing member 130 is extended along a fixed direction, that is, along the axial direction of the rotating axis of the roller brush body 120, the outer surface of the roller brush body 120 and the arcuate end surface 131 of the water squeezing member 130 can both be in good contact.

[0066] When the rotation axis of the roller brush body 120 is curved, the arc-shaped end surface 131 in contact with the outer surface of the roller brush body 120 should be curved, so that in the axial direction of the roller brush body 120, the outer surface of the roller brush body 120 can continuously contact the arc-shaped end surface 131 to squeeze out the moisture in the roller brush body 120.

[0067] Continue to combine Figure 1 The roller brush body 120 of the floor brush assembly 100 is provided with a plurality of shaft segments, including a first shaft segment 121 and a second shaft segment 122. In a plane perpendicular to the first shaft segment 121, the distance between one end of the arcuate end surface 131 facing the roller brush body 120 and the rotation axis of the roller brush body 120 is the same as the distance between one end of the arcuate end surface 131 facing the roller brush body 120 and the rotation axis of the roller brush body 120 in a plane perpendicular to the second shaft segment 122. That is, the extrusion force when the arcuate end surface 131 of the water squeezing member 130 contacts the roller brush body 120 is the same everywhere. Such an arrangement can make the humidity in the roller brush body 120 the same.

[0068] When it is necessary to set different values ​​for the water content on different axial sections of the roller brush body 120, the distances between different axial sections of the roller brush body 120 and the arc-shaped end surface 131 of the water squeezing member 130 can be set to different values, so that the water squeezing member 130 applies different squeezing forces to the roller brush body 120 at different positions, so that the roller brush body 120 cleans the floor with different humidity.

[0069] Specifically, when the roller brush body 120 includes the first shaft segment 121 and the second shaft segment 122, in a plane perpendicular to the first shaft segment 121, the distance between one end of the arcuate end surface 131 facing the roller brush body 120 and the rotation axis of the roller brush body 120 is different from the distance between one end of the arcuate end surface 131 facing the roller brush body 120 and the rotation axis of the roller brush body 120 in a plane perpendicular to the second shaft segment 122.

[0070] The first shaft section 121 and the second shaft section 122 of the roller brush body 120 may be arranged adjacent to each other or spaced apart.

[0071] It is understandable that the roller brush body 120 of the floor brush assembly 100 may also be provided with a plurality of shaft segments, such as a third shaft segment and a fourth shaft segment.

[0072] In one embodiment of the present invention, Figure 2 The arcuate end surface 131 abuts against the outer surface of the roller brush body 120 in the horizontal direction, and the distance between the arcuate end surface 131 and the roller brush body 120 can be more conveniently set in the horizontal plane, so that the arcuate end surface 131 of the water squeezing member 130 contacts the roller brush body 120 with different extrusion forces.

[0073] The arc-shaped end surface 131 of the water squeezing member 130 is close to the roller brush body 120 in the horizontal direction, which is also conducive to fixing the water squeezing member 130 on the support frame 110 to prevent the water squeezing member 130 from warping.

[0074] In one embodiment of the present invention, Figure 7a , Figure 7b as well as Figure 8 The water squeezing member 130 includes a plate-like member 140, one end of which is bent back and forth to form an arcuate end surface 131, and the arcuate end surface 131 is tangent to the plane area 141 of the plate-like member 140. The water squeezing member 130 in this embodiment is formed by bending the plate-like member 140, wherein the arcuate end surface 131 for contacting the roller brush body 120 is formed in the form of a turn, and the other end of the water squeezing member 130 is also formed by bending. It can be seen that the water squeezing member 130 in this embodiment has a simpler structure and is easy to form, and there are no excessive requirements on the thickness of the plate-like member 140, as long as the rigidity of the water squeezing member 130 is guaranteed to be able to resist the extrusion force between the water squeezing member 130 and the roller brush body 120.

[0075] In one embodiment of the utility model, the planar area 141 of the plate-like member 140 is in the same horizontal plane as the rotation axis of the roller brush body 120. Such an arrangement is beneficial to ensuring the stability of the plate-like member 140 when the roller brush body 120 is squeezed against the water squeezing member 130. At the same time, the bent edge of the plate-like member 140 is farther away from the roller brush body 120, thereby reducing the contact with the fluff on the roller brush body 120 and reducing the wear of the roller brush body 120 at the bent edge of the plate-like member 140.

[0076] Figure 3 This is a partial structural diagram of the floor scrubber of the utility model, in which the roller brush body is omitted. Figure 4 The floor brush assembly of the utility model is shown in the form of a stereogram. Figure 5 The floor brush assembly of the utility model is shown in the form of an exploded diagram. Figure 6 FIG. 1 is a schematic diagram of the structure of the water squeezing component, the water spraying component and the comb teeth in the floor brush assembly of the utility model. Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the floor brush assembly 100 of the utility model is further provided with a water spray assembly 150 and a comb tooth bar 160. By providing the water spray assembly 150, the roller brush body 120 can be sprayed with water to clean the roller brush body 120. In addition, the roller brush body 120 can be sprayed with water multiple times by the water spray assembly 150, and the water squeezing part 130 can discharge the water from the roller brush body 120, so that the roller brush body 120 can be self-cleaned.

[0077] The comb teeth 160 can remove dirt on the roller brush body 120 and collect the dirt and debris into the dust box through the dust suction channel 220.

[0078] like Figure 6 As shown, a water spraying assembly 150 is provided on the upper part of the water squeezing member 130, which can replenish water into the roller brush body 120, so that the roller brush body 120 can clean the dirt on the ground with a certain humidity. The sewage can be discharged from the roller brush body 120 through the water squeezing member 130 first, and then the roller brush body 120 can be replenished with clean water through the water spraying assembly 150.

[0079] A comb-tooth bar 160 is provided at the lower part of the water squeezing member 130 , and the roller brush body 120 can remove the debris on the roller brush body 120 through the comb-tooth bar 160 in a wet state before squeezing the water squeezing member 130 to drain water.

[0080] It can be understood that the roller brush body 120 can rotate clockwise or counterclockwise to achieve self-cleaning of the roller brush body 120 or cleaning of the ground.

[0081] from Figure 3It can also be seen that the comb teeth bar 160 is roughly aligned with the arc end surface 131 of the water squeezing member 130. The comb teeth bar 160 is arranged at the lower opening of the dust suction channel 220, so that the dirt on the roller brush body 120 can be more easily sucked into the dust suction channel 220.

[0082] The utility model also provides a floor scrubber, the floor scrubber 200 includes the floor brush assembly 100 in any of the above embodiments. By setting the above floor brush assembly 100, it is possible to reduce excessive wear on the fluff on the roller brush body 120, extend the life of the roller brush body 120, and also extend the replacement cycle of the roller brush body 120.

[0083] Since the friction between the arc-shaped end surface 131 on the water squeezing member 130 and the outer surface of the roller brush body 120 is small, the output torque and output current of the driving motor in the floor scrubber 200 will not be too large, which is more conducive to protecting the driving motor and preventing the driving motor from being overloaded and damaged. In the prior art, the thickness of the stainless steel plate is small, and the friction between the roller brush body and the fluff is large, which will increase the torque of the floor brush motor, thereby increasing the current, which can easily cause damage to the floor scrubber.

[0084] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A floor brush assembly, characterized in that: The floor brush assembly comprises: Support frame; A roller brush body, the roller brush body being rotatably disposed on the support frame; A water squeezing part, one end of which is arranged on the support frame, and the other end of which has an arc-shaped portion, the arc-shaped portion has an arc-shaped end surface, the arc-shaped end surface faces the roller brush body and abuts against the outer peripheral surface of the roller brush body, wherein the minimum distance between the arc-shaped end surface and the rotation axis of the roller brush body is less than the radius of the roller brush body.

2. The floor brush assembly according to claim 1, characterized in that: The curvature radius of the arc-shaped end surface is smaller than the curvature radius of the rolling brush body.

3. The floor brush assembly according to claim 2, characterized in that: The curvature radii of the arc-shaped end faces are consistent or inconsistent.

4. The floor brush assembly according to claim 2, characterized in that: Along the axial direction of the rotating shaft, an extension curve of the rolling brush body is consistent with an extension curve of the arc-shaped end surface.

5. The floor brush assembly according to claim 4, characterized in that: The rolling brush body has a plurality of shaft segments, and in a plane perpendicular to the shaft segments, the distances between one end of the arc-shaped end surface facing the rolling brush body and the rotation axis of the rolling brush body are the same or different.

6. The floor brush assembly according to any one of claims 1 to 5, characterized in that: The water squeezing member comprises a plate-shaped member, one end of which is bent back and forth to form the arc-shaped portion.

7. The floor brush assembly according to claim 6, characterized in that: The plane area of ​​the plate-shaped member is in the same horizontal plane as the rotation axis of the rolling brush body.

8. The floor brush assembly according to any one of claims 1 to 5, characterized in that: The floor brush assembly also includes a water spray assembly, and the water spray assembly is arranged above the water squeezing member.

9. The floor brush assembly according to any one of claims 1 to 5, characterized in that: The floor brush assembly further comprises a comb-tooth bar, which is arranged below the water squeezing member, and the tooth ends of the comb-tooth bar are arranged to be aligned with the arc-shaped end surface.

10. A floor scrubber, characterized in that: The floor scrubber comprises the floor brush assembly according to any one of claims 1-9.

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