Floor brush mechanism and floor washer

Abstract

The present invention relates to a floor brush mechanism and a floor scrubber, the floor brush mechanism comprising: a shell assembly, the shell assembly comprising a lower cover, an upper cover and a front cover, the upper cover and the lower cover are arranged opposite to each other and connected to each other, the front cover and the upper cover are connected to each other, and a roller brush mounting opening is defined between the front cover and the lower cover; a bracket assembly, the bracket assembly comprising a reinforcement and a bracket, the reinforcement is at least partially matched between the lower cover and the front cover, the bracket is fixedly sleeved on the reinforcement and extends into the roller brush mounting opening; a roller brush assembly, the roller brush assembly is located in the roller brush mounting opening and is rotatably sleeved on the bracket. In this way, the bracket is assembled and fixed by the reinforcement, and then the roller brush assembly is assembled on the bracket. The strength of the reinforcement itself is relatively strong, and the wall thickness can be set relatively thin, thereby making the distance between the roller brush assembly and the outer surface of the reinforcement smaller, so that the edge cleaning of the floor brush mechanism can be achieved. In addition, through the mutual cooperation between the reinforcement, the bracket and the roller brush assembly, the reliable assembly of the roller brush assembly can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of floor scrubbing, in particular to a floor brush mechanism and a floor scrubber. Background Art

[0002] With the development of economy and the progress of society, people have higher and higher requirements on the quality of life. Therefore, some smart appliances that can free people's hands have come into being, and floor scrubbers for indoor floor cleaning have gradually entered people's lives.

[0003] A floor scrubber is a cleaning machine that is suitable for cleaning hard floors and sucking out wastewater at the same time, and taking the wastewater away from the site. It has the advantages of environmental protection, energy saving, and high efficiency. Generally, a floor scrubber includes a floor brush and a body. The floor brush is installed on the body. When the floor needs to be cleaned, the body pushes the floor brush to move on the floor to be cleaned. The floor brush mainly drives the roller brush to rotate through the internal motor. While cleaning the floor, it can suck out wastewater, and the fan on the body generates negative pressure to suck the stains into the wastewater tank to achieve the purpose of cleaning the floor. The floor scrubber integrates the functions of vacuuming, absorbing water, and mopping the floor. It has the advantages of environmental protection, energy saving, and high efficiency.

[0004] However, the side wall of the floor brush is relatively thick, so that the roller brush installed in the floor brush is far away from the side wall of the floor brush. When the floor brush moves along the edge, the distance between the roller brush and the edge of the wall is relatively large, and the along-edge cleaning cannot be achieved. Summary of the invention

[0005] Based on this, it is necessary to provide a floor brush mechanism and a floor scrubber to address the problem that the floor brush cannot clean along the edges.

[0006] A floor brush mechanism, comprising:

[0007] A shell assembly, the shell assembly comprising a lower cover, an upper cover and a front cover, the upper cover and the lower cover are arranged opposite to each other and connected to each other, the front cover and the upper cover are connected to each other, and a roller brush installation opening is defined between the front cover and the lower cover;

[0008] A bracket assembly, the bracket assembly comprising a reinforcement member and a bracket, the reinforcement member is at least partially matched between the lower cover and the front cover, and the bracket is fixedly sleeved on the reinforcement member and extends into the roller brush mounting opening;

[0009] A roller brush assembly is located in the roller brush installation opening and is rotatably sleeved on the bracket.

[0010] In the above-mentioned floor brush mechanism, the roller brush assembly is located within the roller brush mounting opening and is rotatably sleeved on the bracket. In this way, the bracket is assembled and fixed by the reinforcing member, and then the roller brush assembly is assembled on the bracket. Since the reinforcing member itself has high strength, its wall thickness can be set to be relatively thin, so that the distance between the roller brush assembly and the outer surface of the reinforcing member is small, achieving edge cleaning of the floor brush mechanism. Moreover, through the mutual cooperation among the reinforcing member, the bracket, and the roller brush assembly, reliable assembly of the roller brush assembly can be realized, preventing the connection method from being unstable after the roller brush assembly is assembled, ensuring that the roller brush assembly can always rotate stably, and reliably performing the cleaning work.

[0011] In one embodiment, the reinforcing member includes a first assembly end and a second assembly end connected to each other. The first assembly end is in limit fit connection between the upper cover and the lower cover, the second assembly end is suspended and faces the roller brush mounting opening, and the bracket is fixedly sleeved on the second assembly end.

[0012] In one embodiment, the front cover includes a front cover body and a limiting member connected to the front cover body. The front cover body is butted against the upper cover, and the limiting member passes through the upper cover and the reinforcing member and extends into the lower cover.

[0013] In one embodiment, the limiting member passes through the upper cover and the first assembly end and extends into the lower cover.

[0014] In one embodiment, a first groove is formed on the upper cover, and a second groove is formed on the lower cover. Opposite sides of the first assembly end are respectively sleeved in the first groove and the second groove.

[0015] In one embodiment, the first assembly end includes a first edge, a second edge, and a connecting plate intersecting and connecting between the first edge and the second edge. At least part of the first edge is sleeved in the first groove, at least part of the second edge is sleeved in the second groove, the limiting member passes through the first edge and the second edge and extends into the lower cover, and the limiting member is located inside the connecting plate.

[0016] In one embodiment, the bracket includes a cover plate and a connecting sleeve connected to each other. The connecting sleeve passes through the second assembly end and extends into the roller brush mounting opening, and at least part of the roller brush assembly is rotatably sleeved in the connecting sleeve;

[0017] A first buckle is provided on the connecting sleeve. The cover plate abuts against the outer surface of the second assembly end facing away from the roller brush mounting opening, and the first buckle is buckled and abutted against the inner surface of the second assembly end facing the roller brush mounting opening.

[0018] In one embodiment, the roller brush assembly includes a roller, a roller brush shaft, a bearing, and a bearing sleeve;

[0019] An installation space is provided at an axial end of the roller. The roller brush shaft is non-rotatably sleeved inside the roller and at least partially extends into the installation space. The bearing sleeve is sleeved on an end of the roller brush shaft extending into the installation space, and the bearing bracket is fixedly sleeved outside the bearing and fixedly mating with the connection sleeve.

[0020] In one embodiment, the connection sleeve at least partially extends into the installation space, and the bearing sleeve is at least partially sleeved inside the connection sleeve and fixedly mates with the connection sleeve.

[0021] In one embodiment, a limiting hole is provided on the connection sleeve, and a second buckle protrudes from an outer surface of the bearing sleeve. The second buckle is axially sleeved in the limiting hole along the connection sleeve.

[0022] In one embodiment, the roller brush assembly further includes a buffer member. An installation groove is provided on an outer surface of the bearing sleeve along its circumferential direction. The buffer member is sleeved in the limiting groove and elastically abuts against an inner wall of the connection sleeve.

[0023] In one embodiment, the reinforcing member is a sheet metal part.

[0024] A floor washing machine includes the above-mentioned floor brush mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of the floor brush mechanism in an embodiment of the present invention;

[0026] Figure 2 is Figure 1 a cross-sectional view of the floor brush mechanism shown passing through the limiting member;

[0027] Figure 3 is Figure 1 a cross-sectional view of the floor brush mechanism shown passing through the axial direction of the roller brush assembly.

[0028] 100. Floor brush mechanism; 10. Housing assembly; 12. Upper cover; 121. First groove; 14. Lower cover; 141. Second groove; 16. Front cover; 161. Front cover body; 163. Limiting member; 17. Rotating brush mounting opening; 30. Bracket assembly; 32. Reinforcing member; 321. First assembly end; 323. Second assembly end; 325. First edge; 326. Second edge; 327. Connecting plate; 34. Bracket; 341. Cover plate; 343. Connecting sleeve; 345. First buckle; 347. Limiting hole; 50. Rotating brush assembly; 52. Roller; 521. Installation space; 54. Rotating brush shaft; 56. Bearing; 58. Bearing sleeve; 581. Second buckle; 70. Buffer member. Detailed implementation manners

[0029] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0032] In the present invention, unless otherwise clearly specified or defined, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present invention, unless otherwise clearly specified or defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0034] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0035] Refer to Figure 1 , in an embodiment of the present invention, a floor brush mechanism 100 is provided, which includes a housing assembly 10, a bracket assembly 30 and a roller brush assembly 50. The bracket assembly 30 is assembled on the housing assembly 10, and the roller brush assembly 50 is located inside the housing assembly 10 and is engaged with the bracket assembly 30, so as to detachably engage the roller brush assembly 50 inside the housing assembly 10 through the bracket assembly 30. Wherein, when the floor brush mechanism 100 moves along the ground, the roller brush assembly 50 rotates relative to the ground to clean the ground.

[0036] The housing assembly 10 includes a lower cover 14, an upper cover 12 and a front cover 16. The upper cover 12 and the lower cover 14 are arranged opposite to each other and connected to each other. The front cover 16 and the upper cover 12 are connected to each other. A roller brush installation opening 17 is defined between the front cover 16 and the lower cover 14. The bracket assembly 30 includes a reinforcement member 32 and a bracket 34. The reinforcement member 32 is at least partially matched between the lower cover 14 and the front cover 16. The bracket 34 is fixedly sleeved on the reinforcement member 32 and extends into the roller brush installation opening 17. The roller brush assembly 50 is located in the roller brush installation opening 17 and is rotatably sleeved on the bracket 34. In this way, the bracket 34 is assembled and fixed by the reinforcement member 32, and then the roller brush assembly 50 is assembled on the bracket 34. The strength of the reinforcement member 32 itself is relatively strong, and the wall thickness can be set relatively thin, thereby making the distance between the roller brush assembly 50 and the outer surface of the reinforcement member 32 smaller, so that the purpose of edge cleaning of the floor brush mechanism 100 can be achieved. Furthermore, through the cooperation among the reinforcement 32, the bracket 34 and the roller brush assembly 50, the roller brush assembly 50 can be reliably assembled, preventing the roller brush assembly 50 from being unstable after assembly, and ensuring that the roller brush can always rotate stably to reliably perform cleaning work.

[0037] Specifically, the reinforcement member 32 is a sheet metal member, which has a relatively high strength and can effectively support and connect the bracket 34 and the roller brush assembly 50. In addition, the sheet metal member is relatively thin, and the original 4 mm side wall (injection molded part) of the floor brush mechanism can be changed to 2 mm, so as to provide a floor brush mechanism 100 with a stable structure and capable of edge cleaning.

[0038] In some embodiments, the reinforcement member 32 includes a first assembly end 321 and a second assembly end 323 connected to each other, the first assembly end 321 is limitedly connected between the upper cover 12 and the lower cover 14, the second assembly end 323 is suspended and faces the roller brush installation port 17, and the bracket 34 is fixedly sleeved on the second assembly end 323. Equivalently, the first assembly end 321 of the reinforcement member 32 is connected between the upper cover 12 and the lower cover 14 to realize the assembly connection of the reinforcement member 32, and the second assembly end 323 of the reinforcement member 32 is suspended to assemble the bracket 34 and the roller brush assembly 50, so as to realize the support and assembly of the roller brush assembly 50.

[0039] See also Figure 2, in some embodiments, the front cover 16 includes a front cover body 161 and a limiting member 163 connected to the front cover body 161. The front cover body 161 is docked with the upper cover 12, and the limiting member 163 passes through the upper cover 12 and the reinforcing member 32 and extends into the lower cover 14. During the assembly process, the upper cover 12 and the lower cover 14 are fitted to each other, and at the same time, the reinforcing member 32 is at least partially disposed between the upper cover 12 and the lower cover 14. Then, the limiting member 163 in the front cover 16 is passed through the upper cover 12 and the reinforcing member 32 until it extends into the lower cover 14, and at the same time, the front cover body 161 is docked with the upper cover 12. In this way, while docking the front cover 16 on the upper cover 12, the upper cover 12, the reinforcing member 32 and the lower cover 14 are connected by the limiting member 163 in the front cover 16, and the reinforcing member 32 is stably assembled on the upper cover 12 and the lower cover 14, providing a stable support point for the bracket 34 and the brush roller assembly 50.

[0040] Further, the limiting member 163 passes through the upper cover 12 and the first assembly end 321 and extends into the lower cover 14, so as to fixedly connect the first assembly end 321 of the reinforcing member 32 with the upper cover 12 and the lower cover 14 through the limiting member 163 in the front cover 16.

[0041] In some embodiments, a first groove 121 is formed on the upper cover 12, and a second groove 141 is formed on the lower cover 14. Opposite sides of the first assembly end 321 are respectively sleeved in the first groove 121 and the second groove 141. In this way, the first groove 121 and the second groove 141 are respectively formed on the upper cover 12 and the lower cover 14. During the assembly process, the upper cover 12 and the lower cover 14 are first snap-connected, and then the opposite sides of the first assembly end 321 of the reinforcing member 32 are respectively sleeved into the first groove 121 and the second groove 141, so that the reinforcing member 32 can be pre-assembled on the upper cover 12 and the lower cover 14. Finally, the front cover 16 is docked, and the limiting member 163 in the front cover 16 is used to connect and position the reinforcing member 32.

[0042] Further, the first assembly end 321 includes a first edge 325, a second edge 326, and a connecting plate 327 intersecting and connecting between the first edge 325 and the second edge 326. At least a part of the first edge 325 is sleeved in the first groove 121, at least a part of the second edge 326 is sleeved in the second groove 141, the limiting member 163 passes through the first edge 325 and the second edge 326 and extends into the lower cover 14, and the limiting member 163 is located inside the connecting plate 327. Equivalently, the reinforcing member 32 is pre-assembled on the upper cover 12 and the lower cover 14 through the first edge 325 and the second edge 326, and the reinforcing member 32 is fixed by the limiting member 163 passing through the first edge 325 and the second edge 326. The limiting member 163 is located inside the connecting plate 327 connecting the first edge 325 and the second edge 326, will not be exposed, and will not affect the flatness of the outer surface of the reinforcing member 32.

[0043] Refer to Figure 3, in some embodiments, the bracket 34 includes a cover plate 341 and a connecting sleeve 343 that are connected to each other. The connecting sleeve 343 passes through the second assembly end 323 and extends into the roller brush mounting opening 17. At least a part of the roller brush assembly 50 is rotatably sleeved within the connecting sleeve 343. In this way, the bracket 34 and the roller brush assembly 50 are rotatably mated through the connecting sleeve 343.

[0044] Moreover, a first buckle 345 is provided on the connecting sleeve 343. The cover plate 341 abuts against the outer surface of the second assembly end 323 facing away from the roller brush mounting opening 17. The first buckle 345 engages and abuts against the inner surface of the second assembly end 323 facing the roller brush mounting opening 17. In this way, through the mating of the cover plate 341 and the buckle, the bracket 34 is fixedly assembled to the second assembly end 323 of the reinforcing member 32. During the installation process, the connecting sleeve 343 passes through the second assembly end 323. And when the cover plate 341 connected to the connecting sleeve 343 abuts against the outer surface of the second assembly end 323, the buckle on the connecting sleeve 343 engages and abuts against the inner surface of the second assembly end 323. During the assembly process, only by pushing the bracket 34 until the buckle engages with the second assembly end 323 can the assembly of the bracket 34 on the reinforcing member 32 be completed. The assembly method of the bracket 34 is simple.

[0045] In some embodiments, the roller brush assembly 50 includes a roller 52, a roller brush shaft 54, a bearing 56, and a bearing sleeve 58. An installation space 521 is formed at the axial end of the roller 52. The roller brush shaft 54 is non-rotatably sleeved within the roller 52 and at least partially extends into the installation space 521. The bearing sleeve 58 is provided at the end of the roller brush extending into the installation space 521. The bearing 56 is fixedly provided outside the bearing 56 and is mated with the connecting sleeve 343. The roller brush shaft 54 is sleeved on the roller 52 and at least partially extends into the installation space 521 of the roller 52. Inside the installation space 521, the bearing 56 and the bearing sleeve 58 are sequentially sleeved on the roller brush shaft 54 from the inside to the outside to form the roller brush assembly 50. During the installation process, the connecting sleeve 343 passes through the second assembly end 323 of the reinforcing member 32 and is fixedly mated with the bearing sleeve 58, fixing the bearing sleeve 58 to the connecting sleeve 343 of the bracket 34. In this way, the roller 52 and the roller brush shaft 54 can drive the inner ring of the bearing 56 to rotate relative to the outer ring of the bearing 56 together, allowing the roller 52 to rotate relative to the fixed bearing sleeve 58 and the bracket 34.

[0046] Furthermore, the connecting sleeve 343 at least partially extends into the installation space 521, and the bearing sleeve 58 at least partially sleeves inside the connecting sleeve 343 and is fixedly matched with the connecting sleeve 343. The bracket 34 is assembled on the reinforcement member 32, and the connecting sleeve 343 in the bracket 34 passes through the second assembly end 323 of the reinforcement member 32 and extends into the installation space 521, and is sleeved outside the support sleeve and fixedly matched with the bearing sleeve 58 to fix the bearing sleeve 58 and the reinforcement member 32. In this way, the installation of the roller brush assembly 50 and the reinforcement member 32 can be completed through one assembly, which is convenient and efficient, and does not require the help of other installation work, which is convenient to operate.

[0047] Specifically, a limiting hole 347 is provided on the connecting sleeve 343, and a second buckle 581 is protrudingly provided on the outer surface of the bearing sleeve 58. The second buckle 581 is set in the limiting hole 347 along the axial limiting sleeve of the connecting sleeve 343, and the bearing sleeve 58 and the connecting sleeve 343 are fixedly connected by aligning the limiting hole 347 with the second buckle 581. When the bracket 34 is installed on the reinforcement 32, the first buckle 345 on the connecting sleeve 343 is buckled with the second assembly end 323 of the reinforcement 32 to fix the connecting sleeve 343 on the reinforcement 32, and the second buckle 581 on the bearing sleeve 58 is limitedly set in the limiting hole 347 on the connecting sleeve 343 to achieve fixed connection between the connecting sleeve 343 and the bearing sleeve 58. In this way, the bearing sleeve 58 is fixedly assembled to the bracket 34 to fix the outer ring of the bearing 56 in the bearing sleeve 58, allowing the roller 52 and the roller brush shaft 54 ​​to drive the inner ring of the bearing 56 to rotate, and allowing the roller 52 to rotate relative to the bracket 34.

[0048] In some embodiments, the roller brush assembly 50 further includes a buffer 70. The outer surface of the bearing sleeve 58 is provided with a mounting groove along its own axial direction. The buffer 70 is sleeved in the limiting groove and elastically abuts against the inner wall of the connecting sleeve 343. In this way, the bearing sleeve 58 is at least partially sleeved in the connecting sleeve 343, and the buffer 70 elastically abuts between the bearing sleeve 58 and the connecting sleeve 343, providing a buffer for the roller brush assembly 50, preventing the roller brush structure from being subjected to excessive rigid impact force when cleaning an uneven bottom surface and affecting its own life, so as to improve the service life of the roller brush assembly 50, especially the service life of the bearing 56.

[0049] In one embodiment of the present invention, a floor scrubber is further provided, comprising the above-mentioned floor brush mechanism 100. The floor brush mechanism 100 comprises a housing assembly 10, a bracket assembly 30 and a roller brush assembly 50. The housing assembly 10 comprises a lower cover 14, an upper cover 12 and a front cover 16. The upper cover 12 and the lower cover 14 are arranged opposite to each other and connected to each other. The front cover 16 and the upper cover 12 are connected to each other. A roller brush installation opening 17 is defined between the front cover 16 and the lower cover 14. The bracket assembly 30 comprises a reinforcement member 32 and a bracket 34. The reinforcement member 32 is at least partially matched between the lower cover 14 and the front cover 16. The bracket 34 is fixedly sleeved on the reinforcement member 32 and extends into the roller brush installation opening 17.

[0050] The rotatable brush assembly 50 is located within the rotatable brush mounting opening 17 and is rotatably sleeved on the bracket 34. In this way, the bracket 34 is assembled and fixed by the reinforcing member 32, and then the rotatable brush assembly 50 is assembled on the bracket 34. Since the reinforcing member 32 has a relatively high strength, its wall thickness can be set to be relatively thin. As a result, the distance between the rotatable brush assembly 50 and the outer surface of the reinforcing member 32 can be reduced, enabling the edge cleaning of the floor cleaning mechanism 100. Moreover, through the mutual cooperation among the reinforcing member 32, the bracket 34, and the rotatable brush assembly 50, the reliable assembly of the rotatable brush assembly 50 can be achieved, preventing the instability of the connection mode after the assembly of the rotatable brush assembly 50 and ensuring that the rotatable brush assembly 50 can always rotate stably for reliable cleaning work.

[0051] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0052] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent shall be subject to the appended claims.

Claims

1. A floor brush mechanism, characterized in that, The floor brush mechanism includes: A housing assembly (10), the housing assembly (10) includes a lower cover (14), an upper cover (12) and a front cover (16), the upper cover (12) is disposed opposite to and connected with the lower cover (14), the front cover (16) is butted against the upper cover (12), and a roller brush mounting opening (17) is defined between the front cover (16) and the lower cover (14); A bracket assembly (30), the bracket assembly (30) includes a reinforcing member (32) and a bracket (34), the reinforcing member (32) is at least partially fitted between the lower cover (14) and the front cover (16), and the bracket (34) is fixedly sleeved on the reinforcing member (32) and extends into the roller brush mounting opening (17); A roller brush assembly (50), the roller brush assembly (50) is located within the roller brush mounting opening (17) and is rotatably sleeved on the bracket (34); The front cover (16) includes a front cover body (161) and a limiting member (163) connected to the front cover body (161), the front cover body (161) is butted against the upper cover (12), and the limiting member (163) passes through the upper cover (12) and the reinforcing member (32) and extends into the lower cover (14).

2. The floor brush mechanism according to claim 1, characterized in that, The reinforcing member (32) includes a first assembly end (321) and a second assembly end (323) connected to each other, the first assembly end (321) is limit-fitted between the upper cover (12) and the lower cover (14), the second assembly end (323) is suspended and faces the roller brush mounting opening (17), and the bracket (34) is fixedly sleeved on the second assembly end (323).

3. The floor brush mechanism according to claim 2, wherein, The limiting member (163) passes through the upper cover (12) and the first assembly end (321) and extends into the lower cover (14).

4. The floor brush mechanism according to claim 2, characterized in that, A first groove (121) is formed on the upper cover (12), a second groove (141) is formed on the lower cover (14), and opposite sides of the first assembly end (321) are respectively sleeved in the first groove (121) and the second groove (141).

5. The floor brush mechanism according to claim 4, characterized in that, The first assembly end (321) includes a first edge (325), a second edge (326) and a connecting plate (327) intersecting and connecting between the first edge (325) and the second edge (326), at least part of the first edge (325) is sleeved in the first groove (121), at least part of the second edge (326) is sleeved in the second groove (141), the limiting member (163) passes through the first edge (325) and the second edge (326) and extends into the lower cover (14), and the limiting member (163) is located inside the connecting plate (327).

6. The floor brush mechanism according to claim 1, wherein, The bracket (34) includes a cover plate (341) and a connecting sleeve (343) connected to each other, the connecting sleeve (343) passes through the second assembly end (323) and extends into the roller brush mounting opening (17), and at least part of the roller brush assembly (50) is rotatably sleeved in the connecting sleeve (343); A first buckle (345) is provided on the connecting sleeve (343). The cover plate (341) abuts against the outer surface of the second assembly end (323) facing away from the roller brush mounting opening (17), and the first buckle (345) is buckled and abutted against the inner surface of the second assembly end (323) facing the roller brush mounting opening (17).

7. The floor brush mechanism according to claim 6, wherein, The roller brush assembly (50) includes a roller (52), a roller brush shaft (54), a bearing (56) and a bearing sleeve (58); An installation space (521) is provided at the axial end of the roller (52). The roller brush shaft (54) is non-rotatably sleeved in the roller (52) and at least partially extends into the installation space (521). The bearing sleeve (58) is provided at the end of the roller brush shaft (54) extending into the installation space (521). The bearing (56) bracket (34) is fixedly sleeved outside the bearing (56) and fixedly engaged with the connecting sleeve (343).

8. The floor brush mechanism according to claim 7, wherein, The connecting sleeve (343) at least partially extends into the installation space (521), and the bearing sleeve (58) is at least partially sleeved in the connecting sleeve (343) and fixedly engaged with the connecting sleeve (343).

9. The floor brush mechanism according to claim 8, wherein, A limiting hole (347) is provided on the connecting sleeve (343). A second buckle (581) protrudes from the outer surface of the bearing sleeve (58), and the second buckle (581) is axially sleeved in the limiting hole (347) along the connecting sleeve (343).

10. The floor brush mechanism according to claim 8, characterized in that, The roller brush assembly (50) further includes a buffer member (70). An installation groove is provided on the outer surface of the bearing sleeve (58) along its circumference. The buffer member (70) is sleeved in the limiting groove and elastically abuts against the inner wall of the connecting sleeve (343).

11. The floor brush mechanism according to any one of claims 1-10, characterized in that, The reinforcing member (32) is a sheet metal part.

12. A floor washer, characterized in that, It includes the floor brush mechanism according to any one of the above claims 1-11.

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