Brush assembly, cleaning head mechanism and cleaning device

Abstract

The utility model discloses a brush assembly, a cleaning head mechanism and a cleaning device. The brush assembly is erected between the two side walls of the cleaning head shell and located above the rear portion of the roller assembly clamped between the two side walls, the brush assembly comprises a brush body, a rotating shaft and an installation positioning piece, the brush body comprises a brush rod and bristles arranged at intervals in multiple rows in the axial direction and the circumferential direction of the brush rod, and the bristles can elastically abut against the outer surface of the roller assembly. One end of the rotating shaft and one end of the brush rod are integrally formed, the installation positioning piece and the rotating shaft are in rotatable magnetic attraction connection so as to achieve rotation of the bristle body, and a gap is reserved between the rotating shaft and the installation positioning piece so as to achieve containing of tiny hair. According to the brush assembly, the rotating shaft of the brush body is rotationally connected with the mounting positioning piece in a magnetic attraction mode, and the connecting alignment convenience and precision of the brush body and the mounting positioning piece are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a brush assembly, a cleaning head mechanism and a cleaning device. Background Art

[0002] In recent years, floor scrubbers on the market often include a cleaning head and a handle. The cleaning head is provided with a roller assembly for scrubbing the floor, and a brush assembly for scraping the roller. The floor scrubber cleans the floor by driving the roller assembly to rotate, and scrapes the surface of the roller assembly with the brush, sweeping the garbage on the surface of the roller into the floor scrubber, thereby achieving the floor scrubbing function.

[0003] At present, in the floor scrubber products, the brush assembly has two forms: driven by a motor alone and driven by a drum motor synchronously. It is troublesome to disassemble and maintain the brush part. On the one hand, it is difficult to separate the brush from the floor scrubber housing and the drive motor when disassembling the brush part of the brush assembly driven by a motor alone; it is difficult to separate the brush from the floor scrubber housing and the drum motor synchronization mechanism when disassembling the brush part of the brush assembly driven by a drum motor synchronously. On the other hand, after the brush assembly is separated from the cleaning head housing, it is also difficult to separate the rotating part of the brush assembly from the non-rotating part that is connected to the cleaning head housing, and the fine hair entangled in the gap between the rotating part of the brush assembly and the non-rotating part that is connected to the cleaning head housing is difficult to clean. In addition, when the brush assembly is not installed in place, it often causes the bristles to fail to brush the drum, resulting in low solid waste cleaning efficiency of the floor scrubber; or, it causes the brush to squeeze the drum with too much interference, resulting in excessive noise from the bristles hitting the drum when the floor scrubber is working. Utility Model Content

[0004] In order to further reduce the difficulty of disassembly and maintenance of the brush assembly, to further facilitate the separation of the rotating part of the brush assembly and the non-rotating part that is clamped with the cleaning head shell, and at the same time increase the convenience and accuracy of installing the brush assembly, the utility model provides a brush assembly, a cleaning head mechanism and a cleaning device.

[0005] In a first aspect, an embodiment of the utility model provides a brush assembly, which is mounted between two side walls of a cleaning head housing and is located above and behind a roller assembly sandwiched between the two side walls, and is characterized in that it includes:

[0006] The brush body comprises a brush rod and a plurality of rows of bristles arranged in an axial direction and a circumferential direction of the brush rod, wherein the bristles can elastically abut against the outer surface of the roller assembly;

[0007] A rotating shaft is integrally formed with the brush rod at one end thereof;

[0008] Install a positioning piece, which is rotatably connected to the rotating shaft by magnetic attraction, so as to realize the rotation of the bristle body;

[0009] Wherein, a gap is left between the rotating shaft and the mounting positioning member to accommodate fine hair.

[0010] In one or some optional embodiments, the cleaning head housing comprises:

[0011] A brush assembly mounting portion is disposed on a side wall of the cleaning head housing, and the mounting positioning member is clamped on the brush mounting portion;

[0012] The transmission assembly arranged on the other side wall of the cleaning head housing is respectively connected to the brush body and the roller assembly in a transmission manner.

[0013] In one or some optional embodiments, the other end of the brush rod of the brush body is provided with a driven coupling portion;

[0014] The driven coupling part is transmission-connected to the transmission assembly so that the brush body can be driven by the transmission assembly to rotate.

[0015] In one or some optional embodiments, the driven coupling portion is in the shape of a polygonal column.

[0016] In one or some optional embodiments, the bristles are arranged in at least three rows, and at any time, a portion of at least one row of bristles is in elastic contact with the outer surface of the roller assembly.

[0017] In one or some optional embodiments, the bristles include first bristles and second bristles of different lengths, and the bristles of the same length are arranged in a row along the axial direction of the brush rod.

[0018] In one or some optional embodiments, the hardness of the first bristles is greater than the hardness of the second bristles, and the length of the first bristles is less than the length of the second bristles.

[0019] In one or some optional embodiments, the mounting positioning member is provided with an axial hole that penetrates the thickness of its end wall, the rotating shaft and the axial hole have a rotational clearance fit, and a detachable magnetic component is provided on the opposite side of the mounting positioning member away from the rotating shaft, and the magnetic attraction force between the inner end face of the magnetic component and the outer end face of the rotating shaft facilitates accurate docking of the two.

[0020] In one or some optional embodiments, the rotating shaft is provided with a limiting boss at the root exposed at one end of the brush rod, a gap is left between the limiting boss and the end face of the axial hole, the rotating shaft continues to extend a docking portion from the end face of the limiting boss in a direction away from the brush rod, and the outer cylindrical surface of the docking portion is matched with the inner cylindrical surface of the axial hole in a rotational clearance.

[0021] In one or some optional embodiments, the inner end surface of the magnetic attraction component, the inner cylindrical surface of the axial hole, the outer cylindrical surface and end surface of the docking portion, and the end surface of the limiting boss together enclose a accommodating space for retaining lubricating grease and fine hair.

[0022] In one or some optional embodiments, an outer edge of one end of the axial hole is provided with a chamfer, and an outer edge of one end of the limiting boss facing the axial hole is provided with a chamfer, and the gap between the two chamfers facilitates guiding fine hair into the accommodating space.

[0023] In one or some optional embodiments, the magnetic attraction member is in the shape of a disc or a round cap.

[0024] In one or some optional embodiments, the magnetic element is in a ring shape, and lubricating grease and fine hair cannot leak from the gap between the magnetic element and the docking portion.

[0025] In one or some optional embodiments, an outer side wall of the brush assembly mounting portion is provided with a detachable magnetic sheet.

[0026] In a second aspect, an embodiment of the utility model provides a cleaning head mechanism, including a brush mounting portion, a transmission assembly and a roller assembly, and the brush assembly described above;

[0027] The brush assembly is installed on the brush installation portion, and the transmission assembly is respectively connected to the brush body of the brush assembly and the roller assembly in a transmission manner;

[0028] The roller assembly can rotate under the action of an external driving force, so as to drive the brush body to rotate in the same direction relative to the roller assembly through the transmission action of the transmission assembly.

[0029] In one or some optional embodiments, the transmission assembly includes a first gear member, a second gear member and a third gear member;

[0030] The first gear member is connected to the roller assembly;

[0031] The third gear member is connected to the brush body;

[0032] The second gear member is meshed with the first gear member and the third gear member, respectively.

[0033] In a third aspect, an embodiment of the utility model provides a cleaning device, comprising the above-mentioned cleaning head mechanism and a handle cooperating with the cleaning head mechanism, wherein the handle is installed on the handle mounting portion of the cleaning head mechanism.

[0034] The beneficial effects of the above technical solution provided by the embodiment of the utility model at least include:

[0035] The brush assembly provided by the embodiment of the utility model, on the one hand, can be easily separated from the floor scrubber housing and the drive motor or transmission mechanism by the user when partially disassembling the brush. On the other hand, after the brush assembly is separated from the cleaning head housing, the user can also easily separate the rotating part of the brush assembly from the non-rotating part that is engaged with the cleaning head housing. After the separation of the rotating part and the non-rotating part, the user can easily remove the fine hairs entangled in the gap between the rotating part of the brush assembly and the non-rotating part that is engaged with the cleaning head housing by simply moving the fine hairs entangled at the root of the rotating shaft of the brush body, thereby completing the cleaning and maintenance of the brush assembly. At the same time, the rotational connection between the rotating shaft of the brush body and the mounting positioning member is realized by magnetic attraction, which improves the convenience and accuracy of the connection and alignment between the brush body and the mounting positioning member. On the other hand, a detachable magnetic sheet is provided on an outer side wall of the brush assembly mounting portion of the cleaning head housing, and the brush assembly can be firmly fixed at the brush assembly mounting portion through the magnetic attraction between the mounting positioning piece and the brush assembly mounting portion of the cleaning head housing, thereby improving the stability of the brush assembly during use when installed in the cleaning head housing, avoiding radial vibration of the brush assembly, and further reducing the noise of the whole machine when the floor scrubber is working. Similarly, when the user installs one end of the mounting positioning piece of the brush assembly to the brush assembly mounting portion of the cleaning head housing, the mounting positioning piece will be automatically attracted to the groove of the brush assembly mounting portion under the action of the magnetic attraction between the magnetic member and the magnetic sheet, thereby improving the convenience of the user to install the brush assembly.

[0036] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures particularly pointed out in the written description and the drawings.

[0037] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0039] Figure 1 A schematic diagram of the structure of the brush assembly provided by the utility model;

[0040] Figure 2 An exploded view of the brush assembly, the roller assembly and the transmission assembly provided by the utility model being installed on the cleaning head housing;

[0041] Figure 3A schematic diagram of the brush assembly provided by the utility model being installed on a cleaning head housing;

[0042] Figure 4 An exploded view of the brush assembly provided by the utility model;

[0043] Figure 5 for Figure 1 A partial enlarged view of the middle part;

[0044] Figure 6 for Figure 4 A partial enlarged view of point B in the middle;

[0045] Figure 7 A front view of the brush assembly provided by the utility model;

[0046] Figure 8 for Figure 7 Middle C-axis planing view;

[0047] Fig. 9 for Figure 8 A partial enlarged view of point D in the middle;

[0048] Fig.10 Another embodiment of the brush assembly provided by the utility model is Figure 8 A partial enlarged view of point D in the middle;

[0049] Fig.11 Another embodiment of the brush assembly provided by the utility model is Figure 8 A partial enlarged view of point D in the middle.

[0050] Reference numerals:

[0051] 1 is a cleaning head housing;

[0052] 2 is a transmission component;

[0053] 21 is a first gear member, 22 is a second gear member, and 23 is a third gear member;

[0054] 3 is a brush assembly;

[0055] 30 is a brush body, 301 is a brush bristle, 301a is a first brush bristle, 301b is a second brush bristle, 302 is a brush rod, and 3021 is a driven coupling part;

[0056] 30a is a first end portion, and 30b is a second end portion;

[0057] 31 is a rotating shaft, 311 is a first knurled cylindrical surface, 312 is a first groove, 313 is a second knurled cylindrical surface, 314 is a second groove, 315 is a limiting boss, and 316 is a docking portion;

[0058] 33 is a mounting locator, 331 is a mounting locator body, 322 is a snap-on ear, and 333 is a hollow portion;

[0059] M is the first accommodating space, and M' is the second accommodating space;

[0060] 33a is a magnetic attraction member;

[0061] 4 is a roller assembly;

[0062] 5 is an integrated water tank;

[0063] 6 is a magnetic sheet;

[0064] 7 is a trash box. DETAILED DESCRIPTION

[0065] 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 set forth herein. On the contrary, these embodiments are provided 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.

[0066] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "far", "near", "front", "rear" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0067] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0068] The applicant's patent with application number CN202220506875.9 discloses a brush roller and a floor scrubber equipped with a brush roller. The applicant's patent with application number CN202220270430.5 discloses a cleaning roller brush and a cleaning tool. The above-mentioned brush roller, floor scrubber equipped with a brush roller, cleaning roller brush and cleaning tool are all driven by a separate drive motor to drive the gear set to rotate, thereby driving the brush assembly to rotate. The roller assembly is driven by another separate drive motor, so that the brush assembly and the roller assembly rotate in opposite directions, thereby realizing synchronous operation of the roller assembly and the brush assembly. However, the dual motors driving the brush assembly and the roller assembly separately will consume more electricity, reducing the power endurance time of the floor scrubber.

[0069] The patent with application number CN201920717259.6 discloses a garbage box structure with a built-in brush and shovel bar. In this structure, the brush does not rotate, and the roller assembly is cleaned only by the rotation of the roller assembly and the elastic abutment between the roller assembly and the brush assembly to peel off the particulate garbage adhering to the roller assembly. Therefore, this structure cannot achieve full-angle sweeping of the wiping layer on the surface of the roller assembly, and the garbage on the surface of the roller assembly continues to accumulate, thereby reducing the cleaning effect of the floor scrubber.

[0070] In order to reduce the energy consumption and noise of the floor scrubber, the applicant filed a utility model patent application CN202321000387.1 on April 27, 2023, applying for protection of a brush assembly, a cleaning head mechanism and a cleaning device, the brush assembly includes a brush body and a clamping piece; the brush body is movably connected to the clamping piece and can rotate relative to the clamping piece; the cleaning head mechanism includes a brush mounting part, a transmission assembly and a roller assembly, the clamping piece is clamped to the brush mounting part, and the transmission assembly is respectively connected to the brush body and the roller assembly in a transmission manner; the roller assembly can rotate under the action of an external driving force, so as to drive the brush body to rotate in the same direction relative to the roller assembly through the transmission action of the transmission assembly. The brush body of the brush assembly can rotate relative to the clamping piece, so as to achieve synchronous operation with the roller group through the transmission action of the transmission assembly, and does not require a separate drive motor for driving, which saves driving energy, improves the endurance, and reduces noise.

[0071] After further improvement and testing, the inventor found that, on the one hand, it is difficult to separate the brush from the housing of the floor scrubber and the driving motor when the brush is partially disassembled when the brush is driven by a motor alone; it is difficult to separate the brush from the housing of the floor scrubber and the synchronization mechanism of the drum motor when the brush is partially disassembled when the brush is driven synchronously by a drum motor. On the other hand, after the brush assembly is separated from the cleaning head housing, it is also difficult to separate the rotating part of the brush assembly from the non-rotating part that is engaged with the cleaning head housing, and it is difficult to clean the fine hair entangled in the gap between the rotating part of the brush assembly and the non-rotating part that is engaged with the cleaning head housing. In addition, when the brush assembly is not installed in place, the bristles often cannot brush the drum, resulting in too low a solid waste cleaning efficiency of the floor scrubber; or, the interference amount of the brush against the drum is too large, resulting in excessive noise from the bristles hitting the drum when the floor scrubber is working.

[0072] Based on this, the utility model provides a magnetic suction brush assembly and a cleaning device having the same, which are described below through specific embodiments.

[0073] In the first aspect, this embodiment provides a brush assembly 3, which is installed on the two side walls of the cleaning head housing 1, referring to Figure 1 , Figure 2 , Figure 4 , Figure 7 As shown, it includes a brush body 30, a rotating shaft 31 integrally formed with the brush body 30, and a mounting and positioning member 33 rotatably matched with the rotating shaft 31. The brush body 30 includes a brush rod 302 integrally formed with the rotating shaft 31, and multiple rows of bristles 301 spaced apart are implanted axially around the brush rod 302. The bristles 301 include first bristles 301a and second bristles 301b spaced apart from each other. The roots of the first bristles 301a and the second bristles 301b are implanted inward from the outer surface of the brush rod 302. The free ends of the first bristles 301a and the second bristles 301b can elastically abut against the sponge layer on the outer surface of the roller assembly 4. The length of the exposed portion of the first bristles 301a is shorter than that of the exposed portion of the second bristles 301b. The hardness of bristles a is stronger than that of the second bristles 301b. The free end of the first bristles 301a uses a smaller interference to be more "hard" to "brush and squeeze" the solid waste absorbed by the sponge layer on the outer surface of the roller assembly 4, and the free end of the second bristles 301b uses a larger interference to be more "soft" to "brush and wipe" the solid waste absorbed by the sponge layer on the outer surface of the roller assembly 4. The first bristles 301a and the second bristles 301b alternately use different interferences and different elastic contact forces to intermittently brush the solid waste absorbed by the sponge layer on the outer surface of the roller assembly 4, which can improve the cleaning ability of the floor scrubber to clean solid waste.

[0074] The brush body 30 further includes a first end 30a coupled to the third gear member 23 of the transmission assembly 2, and a second end 30b coupled to the mounting positioning member 33; the brush body 30 is detachably connected to the mounting positioning member 33 via a rotating shaft 31, and can rotate relative to the mounting positioning member 33;

[0075] The cleaning head housing 1 includes a brush assembly mounting portion (not shown in the drawings) disposed on one side wall of the cleaning head housing 1 and a transmission assembly 2 disposed on the other side wall of the cleaning head housing 1. A roller assembly 4 is also clamped between the two side walls of the cleaning head housing 1. The mounting positioning member 33 is clamped on the brush mounting portion. The transmission assembly 2 is respectively connected to the brush body 30 and the roller assembly 4 in a transmission manner.

[0076] The roller assembly 4 can rotate under the action of an external driving force, so as to drive the brush body 30 to rotate in the same direction relative to the roller assembly 4 through the transmission action of the transmission assembly 2. It should be noted that the same direction rotation here means that the rotation direction of the brush body 30 is consistent with the rotation direction of the roller assembly 4. Figure 2 As shown, the roller assembly 4 rotates clockwise when viewed from the left end face, and the brush body 30 also rotates clockwise when viewed from the left end face. From the moment when the end of the bristles 301 of the brush body 30 contacts the sponge layer on the outer surface of the roller assembly 4, the linear velocity of the contact point of the end of the bristles 301 of the brush body 30 moving along the tangential direction and the linear velocity of the contact point of the sponge layer on the outer surface of the roller assembly 4 moving along the tangential direction are opposite to each other. That is to say, the relative velocity of the contact point of the end of the bristles 301 of the brush body 30 and the sponge layer on the outer surface of the roller assembly 4 is the sum of the two linear velocities, which is more conducive to brushing solid waste off the sponge layer on the outer surface of the roller assembly 4 at high speed.

[0077] In this embodiment, when the roller assembly 4 rotates under the action of an external driving force, the rotation of the roller assembly 4 is transmitted to the brush body 30 due to the transmission action of the transmission assembly 2, and the brush body 30 rotates in the same direction relative to the roller assembly 4, thereby realizing the synchronous operation of the roller assembly 4 and the brush assembly 3, that is, while the roller assembly 4 cleans the floor, the brush assembly 3 sweeps and brushes the surface of the roller assembly 4, thereby improving the efficiency of floor cleaning.

[0078] In a specific embodiment, referring to Figure 2As shown, the transmission assembly 2 may include a first gear member 21, a second gear member 22 and a third gear member 23; the second gear member 22 is located between the first gear member 21 and the second gear member 22, and is respectively meshed with the first gear member 21 and the second gear member 22, fixing the first gear member 21 to the roller assembly 4, and when the roller assembly 4 rotates under the action of an external driving force, the first gear member 21 rotates with the roller assembly 4, so that the second gear member 22 and the third gear member 23 also start to rotate due to the meshing action, and the third gear member 23 has the same rotation direction as the first gear member 21; the third gear member 23 is coupled and linked to the brush body 30, so that the brush body 30 rotates in the same direction relative to the roller assembly 4 under the transmission action of the transmission assembly 2.

[0079] In a specific embodiment, referring to Figure 2 , Figure 5 , Figure 7 As shown, the first end 30a of the brush body 30 close to the transmission assembly 2 is provided with a driven coupling part 3021, which is a polygonal protrusion extending outward from the first end 30a of the brush rod 302 toward the direction of the third gear member 23, and the third gear member 23 is centrally provided with a blind hole (not shown in the figure) corresponding to the driven coupling part 3021, and the driven coupling part 3021 can extend into the blind hole and cannot rotate in the blind hole; when the third gear member 23 rotates, the brush body 30 rotates under the drive of the third gear member 23. In this embodiment, the driven coupling part 3021 can be a polygonal prism, such as a quadrangular prism or a hexagonal prism, and correspondingly, the blind hole can be a hole with an inner quadrangle or an inner hexagon.

[0080] In a specific embodiment, referring to Figure 1 , Figure 4 As shown, the brush body 30 includes a brush rod 302 and at least two groups of bristles 301 arranged along the circumferential direction of the brush rod 302. Each group of bristles 301 is arranged along the length direction of the brush rod 312, and the bristles 301 at least partially contact the outer surface of the roller assembly 4, so as to sweep and brush the outer surface of the roller assembly 4 by rotating in the same direction relative to the roller assembly 4. The number of groups of brushes can be reasonably set according to the size of the roller body (not shown in the figure) and the outer diameter of the brush rod 302. For example, if the outer diameter of the brush rod 302 is large, the larger size of the roller body 41 is also large. In order to achieve full-angle sweeping of the surface of the roller body 41, three or more groups of bristles 301 can be set.

[0081] The brush body 30 of the brush assembly 3 provided in the present embodiment can rotate relative to the mounting positioning member 33, so that the power driving the rotation of the roller assembly 4 is directly transmitted to the brush assembly 3 through the transmission action of the transmission assembly 2, thereby realizing the synchronous operation of the roller assembly 4 and the brush assembly 3. While the roller assembly 4 cleans the floor, the outer surface of the roller assembly 4 is swept and brushed by the brush body 30. The brush body 30 does not need a separate driving motor to drive it, which saves driving energy, improves the battery life, and reduces noise.

[0082] In a specific embodiment, referring to Figure 3 As shown, a brush assembly mounting portion (not shown in the drawings) is provided on one side wall of the cleaning head housing 1, which is suitable for detachably mounting a mounting positioning member 33. A transmission assembly 2 is provided on the other side wall of the cleaning head housing 1, and the third gear member 23 of the transmission assembly 2 realizes coupling with the brush assembly 3 through the driven coupling member 3021, so that the brush body 30 rotates in the same direction relative to the roller assembly 4 under the transmission action of the transmission assembly 2. When installing the brush assembly 3 to the cleaning head housing 1, the driven coupling member 3021 of the brush assembly 3 is first inserted into the blind hole of the third gear member 23, and then one end of the mounting positioning member 33 of the assembly consisting of the assembled brush body 30, the rotating shaft 31, and the mounting positioning member 33 is slid into the brush assembly mounting portion along the two guide side walls (not shown in the drawings) of the mounting positioning member 33. When removing the brush assembly 3 from the cleaning head shell 1, first remove the installation positioning member 33 of the brush assembly 3 upward from the brush assembly installation portion, and then separate the driven coupling part 3021 from the blind hole of the third gear member 23 along the axial direction of the brush rod 302 away from the blind hole direction of the third gear member 23, thereby completing the removal of the brush assembly 3 from the cleaning head shell 1.

[0083] In a specific embodiment, referring to Figure 4 , Figure 6 As shown, the second end 30b of the brush body 30 is integrally formed with a rotating shaft 31, and the mounting positioning member 33 is provided with an axial hole (not marked in the drawings) that penetrates the thickness of its end wall, and the rotating shaft 31 is passed through the axial hole of the mounting positioning member 33, so that the brush body 30 can rotate relative to the mounting positioning member 33 through the rotating shaft 31; during assembly, the driven coupling portion 3021 of the brush body 30 is engaged with the blind hole of the third gear member 23, and after the rotating shaft 31 is passed through the axial hole in the mounting positioning member 33, the mounting positioning member 33 is inserted into the brush assembly mounting portion, so that the brush assembly 3 is movably arranged in the cleaning head shell 1, and the brush assembly 3 can be disassembled from the cleaning head mechanism by pulling out the mounting positioning member 33, which greatly facilitates the maintenance and replacement of the brush assembly 3.

[0084] In this embodiment, refer to Figure 6 , Figures 8 to 11 As shown, the rotating shaft 31 is provided with a first knurled cylindrical surface 311, a first groove 312, a second knurled cylindrical surface 313, a second groove 314, a limiting boss 315, and a docking portion 316 in sequence from the inside to the outside on the cylindrical surface of the rotating shaft 31 starting from the inner end surface integrally formed with the second end portion 30b of the brush body 30. Among them, the first knurled cylindrical surface 311, the first groove 312, the second knurled cylindrical surface 313, and the second groove 314 of the rotating shaft 31 are all integrally formed in the second end portion 30b of the brush body 30, and the left end surface of the limiting boss 315 is just flush with the end surface of the brush rod 302. The first knurled cylindrical surface 311 and the second knurled cylindrical surface 313 of the rotating shaft 31 are arranged at intervals to increase the integral brush body 30 formed by the integrally formed brush rod 302 and the rotating shaft 31, when either of the two is subjected to an external twisting force, still ensure that the entire brush body 30 has good torsion resistance, so that the brush rod 302 and the rotating shaft 31 form a stable whole stably, and no mutual rotation occurs between the two. The first groove 312 and the second groove 314 of the rotating shaft 31 are arranged at intervals to increase the integral brush body 30 formed by the integrally formed brush rod 302 and the rotating shaft 31, when either of the two is subjected to an external tensile force along the axial direction of the brush rod 302, still ensure that the entire brush body 30 has good tensile resistance, so that the brush rod 302 and the rotating shaft 31 form a stable whole stably, and no mutual movement occurs between the two.

[0085] Next, refer to Figures 9 to 11As shown, the outer edge of one end of the limiting boss 315 facing the axial hole of the mounting positioning member 33 is provided with a chamfer, and the outer edge of the end of the axial hole of the mounting positioning member 33 facing the limiting boss 315 is provided with a chamfer, and the outer diameter of the limiting boss 315 is larger than the inner diameter of the axial hole of the mounting positioning member 33. After the brush body 30 integrally formed with the rotating shaft 31 is installed and matched with the mounting positioning member 33 at the axial hole of the mounting positioning member 33, a gap (not marked in the drawings) is left between the limiting boss 315 and the chamfer of the axial hole, and a larger accommodating space is left between the docking portion 316 of the rotating shaft 31 and the axial hole of the mounting positioning member 33. The outer diameter of the brush rod 302 is much larger than the outer diameter of the limiting boss 315. In this way, after the brush assembly 3 has been used in the floor scrubber for a period of time, fine hairs are more likely to slowly accumulate at the limiting boss 315. When the fine hairs accumulate to a certain extent at the limiting boss 315, the fine hairs can continue to accumulate to the accommodation space through the gap. When the fine hairs accumulate in the accommodation space, the relative rotation of the rotating shaft 31 relative to the shaft hole of the mounting positioning member 33 will be seriously blocked. At this time, the user needs to remove the brush assembly 3 by himself for timely cleaning. There is a gap between the chamfer of the limiting boss 315 and the shaft hole (not marked in the figure), and a large accommodation space (M, M') is left between the docking portion 316 of the rotating shaft 31 and the shaft hole of the mounting positioning member 33. This can extend the time interval for the user to manually maintain the brush assembly 3, reduce the frequency of manual maintenance of the brush assembly by the user, and improve the user experience.

[0086] Next, refer to Fig.10 , Fig.11 As shown, the cylindrical outer surface of the docking portion 316 of the rotating shaft 31 may also be provided with a circle of oil storage grooves (not marked in the drawings). The user can apply lubricating grease to the cylindrical outer surface of the docking portion 316 of the rotating shaft 31 after each cleaning and maintenance of the brush assembly 3. The groove can allow the lubricating grease to stay in the accommodating space for a longer time, which can further improve the smoothness of the brush assembly 3 during operation.

[0087] In this embodiment, refer to Figure 3 , Figure 4 , Figures 8 to 11As shown, a detachable magnetic member 33a is provided on the side of the installation positioning member 33 away from the brush body 30, and the rotating shaft 31 is made of magnetic material. After the installation positioning member 33 provided with the detachable magnetic member 33a is quickly docked with the rotating shaft 31 integrally formed with the brush body 30, under the action of the magnetic attraction between the rotating shaft 31 and the magnetic member 33a, the installation positioning member 33 can achieve "floating" rotatable docking with the rotating shaft 31. When the user needs to remove the brush assembly 3 from the cleaning head housing 1, he only needs to remove the installation positioning member 33 installed at the brush assembly installation part of the side wall of the cleaning head housing 1, and then separate the driven coupling part 3021 from the blind hole of the third gear member 23. Through the action of the magnetic attraction between the rotating shaft 31 and the magnetic member 33a, the user can naturally and easily remove the entire brush assembly 3 from the cleaning head housing 1.

[0088] The mounting locator 33 includes a mounting locator body 331 and a snap-on ear 322 disposed at one end of the mounting locator body. The snap-on ear 332 is disposed at one end of the mounting locator 33 that cooperates with the brush assembly mounting portion. A groove (not shown in the figure) is disposed at the brush assembly mounting portion of a side wall of the cleaning head housing 1, and the snap-on ear 332 can be engaged with the groove. The mounting locator 33 is inserted into the brush assembly mounting portion of a side wall of the cleaning head housing 1, so that the snap-on ear 332 is engaged with the groove, thereby snapping the mounting locator 33 to the brush assembly mounting portion and preventing the mounting locator 33 from loosening or slipping off.

[0089] Furthermore, the mounting locator body 331 may be provided with a hollow portion 333, and the mounting locator body 331 may be provided with a reinforcing rib (not shown in the figure), which can further reduce the overall weight of the mounting locator body 331 and improve the overall rigidity, thereby improving the stability of the brush assembly 3 during use when installed in the cleaning head housing 1, avoiding axial and radial vibration of the brush assembly 3, and further reducing the overall noise of the scrubber when it is working. Figure 5 As shown, the hollow portion 333 can be set to a U-shape. The U-shaped hollow portion 333 can enable the mounting positioning member body 331 to undergo a slight elastic deformation relative to the mounting positioning member 33 as a whole, making the mounting positioning member 33 smoother and easier to install to the brush assembly mounting portion of a side wall of the cleaning head shell 1.

[0090] In one embodiment, referring to Figure 3As shown, further, a detachable magnetic sheet 6 can be provided on an outer side wall of the brush assembly mounting portion of the cleaning head housing 1. After the brush assembly 3 is installed in place, the magnetic attraction between the magnetic member 33a and the magnetic sheet 6 can firmly fix the brush assembly 3 at the brush assembly mounting portion, thereby improving the stability of the brush assembly 3 during use when installed in the cleaning head housing 1, avoiding radial vibration of the brush assembly 3, and further reducing the noise of the whole machine when the floor scrubber is working. Similarly, when the user installs one end of the installation positioning member 33 of the brush assembly 3 to the brush assembly mounting portion of the cleaning head housing 1, under the action of the magnetic attraction between the magnetic member 33a and the magnetic sheet 6, the installation positioning member 33 will be automatically sucked to the groove of the brush assembly mounting portion, thereby improving the convenience of the user to install the brush assembly.

[0091] In one embodiment, referring to Figure 8 , Fig. 9 As shown, the magnetic member 33a is disc-shaped, and the magnetic member 33a blocks the shaft hole of the installation positioning member 33 on the side of the installation positioning member body 331 opposite to the rotating shaft 31. At the same time, the side of the magnetic member 33a opposite to the rotating shaft 31, the shaft hole of the installation positioning member 33, the limiting boss 315, and the cylindrical surface and end surface of the docking portion 316 jointly enclose an accommodation space M. Since the magnetic member 33a further blocks the accommodation space M, the lubricating grease applied to the cylindrical surface and end surface of the docking portion 316 after the user disassembles the maintenance brush assembly 3 is also easier to stay and is not easy to lose.

[0092] In one embodiment, referring to Fig.10 As shown, the magnetic member 33a is in the shape of a round cap. The magnetic member 33a blocks the axial hole of the mounting positioning member 33 on the side of the mounting positioning member body 331 opposite to the rotating shaft 31. At the same time, the side of the magnetic member 33a opposite to the rotating shaft 31, the axial hole of the mounting positioning member 33, the limiting boss 315, the cylindrical surface and the end surface of the docking portion 316 jointly enclose a storage space M, and the round cap-shaped magnetic member 33a itself also encloses a storage space M'. Since the magnetic member 33a further blocks the storage space M, the lubricating grease applied to the cylindrical surface and the end surface of the docking portion 316 after the user disassembles the maintenance brush assembly 3 is also easier to stay and is not easy to lose. The round cap-shaped magnetic member 33a can further reduce the weight of the magnetic member 33a itself, increase the total volume of the storage space, and also leave more space for the docking portion 316 of the rotating shaft 31, so that the lubricating grease can wrap and lubricate the docking portion 316 of the rotating shaft 31 more fully. The round cap-shaped magnetic attraction member 33a can be prepared by stamping and re-excitation, and the cost of mass production can be further reduced.

[0093] In one embodiment, referring to Fig.11As shown, the magnetic member 33a is annular, and there is a gap between the inner diameter of the annular magnetic member 33a and the outer diameter of the docking portion 316 of the shaft 31. This slight gap allows the lubricating grease to still only wrap around the cylindrical surface and end surface of the docking portion 316 of the shaft 31 under the action of its own surface tension. The magnetic member 33a is embedded in the inner wall of the shaft hole of the mounting positioning member 33 on the side opposite to the shaft 31 on the mounting positioning member body 331. At the same time, the side of the magnetic member 33a opposite to the shaft 31, the shaft hole of the mounting positioning member 33, the limiting boss 315, and the cylindrical surface and end surface of the docking portion 316 jointly enclose a receiving space M, and the annular magnetic member 33a itself also encloses a receiving space M'. Since the magnetic member 33a further blocks the receiving space M, the lubricating grease applied to the cylindrical surface and end surface of the docking portion 316 after the user disassembles the maintenance brush assembly 3 is also easier to stay and not easy to lose. The annular magnetic member 33a can further reduce the weight of the magnetic member 33a itself, increase the total volume of the accommodation space, and reserve more space for the docking portion 316 of the shaft 31, so that the lubricating grease can more fully wrap and lubricate the docking portion 316 of the shaft 31. The annular magnetic member 33a can be prepared by stamping and re-excitation, and the cost of mass production can be further reduced.

[0094] The brush assembly provided in the present embodiment is provided with an installation positioning member 33 at the installation portion of the brush assembly which can be magnetically attracted and "suspended" and rotatably connected to the cleaning head shell 1. The installation positioning member 33 is provided with a detachable magnetic member 33a, so that the brush assembly 3 can be conveniently and detachably installed. By providing a detachable magnetic sheet 6 on an outer side wall of the installation portion of the brush assembly of the cleaning head shell 1, the stability of the brush assembly after being installed in place is further improved, and the convenience of the user in installing the brush assembly is further improved, so that the brush assembly 3 is easier to maintain and replace more conveniently and accurately.

[0095] In the second aspect, based on the same inventive concept, this embodiment provides a cleaning head mechanism, referring to Figure 2 , Figure 3 As shown, it includes a brush assembly mounting portion, a transmission assembly 2 and a roller assembly 4, as well as the brush assembly 3 described in the first aspect above;

[0096] The brush assembly 3 is installed on the brush assembly installation portion, and the transmission assembly 2 is respectively connected to the brush body 30 of the brush assembly 3 and the roller assembly 4;

[0097] The roller assembly 4 can rotate under the action of an external driving force, so as to drive the brush body 30 to rotate in the same direction relative to the roller assembly 4 through the transmission action of the transmission assembly 2 .

[0098] In this embodiment, refer to Figure 2 and Figure 3As shown, the transmission assembly 2 includes a first gear member 21, a second gear member 22 and a third gear member 23; the first gear member 21 is connected to the roller assembly 4; the third gear member 23 is connected to the brush body 31; the second gear member 22 is meshed with the first gear member 21 and the third gear member 23 respectively. Since the first gear member 21 drives the second gear member 22 to rotate, and the second gear member 22 drives the third gear member 23 to rotate, the second gear member 22 rotates in the opposite direction relative to the first gear member 21 and the third gear member 23 respectively, so that the first gear member 21 and the third gear member 23 rotate in the same direction, thereby realizing the same direction rotation of the roller assembly 4 and the brush assembly 3. When the roller assembly 4 rotates clockwise, the brush assembly 3 also rotates clockwise, so that the surface of the roller assembly 4 can be swept and brushed.

[0099] In a specific embodiment, referring to Figure 3 As shown, the cleaning head mechanism also includes a garbage box 7 arranged below the brush assembly 3. The brush body 30 rotates in the same direction relative to the roller assembly 4 to sweep the surface of the roller assembly 4, thereby sweeping the garbage adhered to the surface of the roller assembly 4 into the garbage box 7 below the brush assembly 3.

[0100] In a specific embodiment, referring to Figure 2 , Figure 3 As shown, the cleaning head mechanism may further include an integrated water tank 5, which is connected to the drum assembly 4 through a water pipe (not shown in the figure) for providing clean water to the drum assembly 4 and recovering sewage generated by the drum assembly 4. The clean water provided by the integrated water tank 5 can wet the wiping layer on the outer surface of the drum assembly, so that the wiping layer can clean the floor.

[0101] The cleaning head mechanism provided in this embodiment wipes the garbage on the ground through the roller assembly 4, and sweeps the garbage adhered to the outer surface of the roller assembly 4 into the garbage box 7 through the brush assembly 3; recovers the sewage adsorbed by the wiping layer on the surface of the roller assembly 4 through the water tank, and provides clean water to the wiping layer on the outer surface of the roller assembly 4; through the cooperation of the roller assembly 4, the brush assembly 3, the garbage box 7 and the integrated water tank 5, the efficiency of floor cleaning is improved and the cleaning effect is enhanced.

[0102] In the third aspect, based on the same inventive concept, this embodiment provides a cleaning device, comprising the cleaning head mechanism and a handle (not shown in the figure) described in the second aspect; the cleaning head mechanism is provided with a handle mounting portion (not shown in the figure), and the handle is mounted on the handle mounting portion. The cleaning device can be moved by pushing the handle to clean the area to be cleaned.

[0103] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. The present disclosure is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A brush assembly is mounted between the two side walls of a cleaning head housing and is located above and behind a roller assembly sandwiched between the two side walls, characterized in that: include: The brush body comprises a brush rod and a plurality of rows of bristles arranged in an axial direction and a circumferential direction of the brush rod, wherein the bristles can elastically abut against the outer surface of the roller assembly; A rotating shaft is integrally formed with the brush rod at one end thereof; Install a positioning piece, which is rotatably connected to the rotating shaft by magnetic attraction, so as to realize the rotation of the bristle body; Wherein, a gap is left between the rotating shaft and the mounting positioning member to accommodate fine hair.

2. The brush assembly according to claim 1, characterized in that: The cleaning head housing comprises: A brush assembly mounting portion is disposed on a side wall of the cleaning head housing, and the mounting positioning member is clamped on the brush assembly mounting portion; The transmission assembly arranged on the other side wall of the cleaning head housing is respectively connected to the brush body and the roller assembly in a transmission manner.

3. The brush assembly according to claim 2, characterized in that: The other end of the brush rod of the brush body is provided with a driven coupling part; The driven coupling part is transmission-connected to the transmission assembly so that the brush body can be driven by the transmission assembly to rotate.

4. The brush assembly according to claim 3, characterized in that: The driven coupling portion is in a polygonal column shape.

5. The brush assembly according to claim 1, characterized in that: The bristles are arranged in at least three rows, and at any time, a portion of at least one row of bristles is in elastic contact with the outer surface of the roller assembly.

6. The brush assembly according to claim 5, characterized in that: The bristles include first bristles and second bristles of different lengths, and the bristles of the same length are arranged in a row along the axial direction of the brush rod.

7. The brush assembly according to claim 6, characterized in that: The hardness of the first bristles is greater than that of the second bristles, and the length of the first bristles is less than that of the second bristles.

8. The brush assembly according to claim 2, characterized in that: The installation positioning member is provided with an axial hole that penetrates the thickness of its end wall, and the rotating shaft is matched with the axial hole in a rotational clearance. A detachable magnetic attraction member is provided on the opposite side of the installation positioning member away from the rotating shaft, and the magnetic attraction force between the inner end face of the magnetic attraction member and the outer end face of the rotating shaft facilitates accurate docking of the two.

9. The brush assembly according to claim 8, characterized in that: The rotating shaft is provided with a limiting boss at the root exposed at one end of the brush rod, a gap is left between the limiting boss and the end face of the shaft hole, the rotating shaft continues to extend a docking portion from the end face of the limiting boss in a direction away from the brush rod, and the outer cylindrical surface of the docking portion is matched with the inner cylindrical surface of the shaft hole in a rotational clearance.

10. The brush assembly according to claim 9, characterized in that: The inner end surface of the magnetic attraction component, the inner cylindrical surface of the shaft hole, the outer cylindrical surface and the end surface of the docking portion, and the end surface of the limiting boss jointly enclose a storage space for retaining lubricating grease and fine hair.

11. The brush assembly according to claim 10, characterized in that: An outer edge of one end of the shaft hole is provided with a chamfer, and an outer edge of one end of the limiting boss facing the shaft hole is provided with a chamfer, and the gap between the two chamfers facilitates guiding small hairs into the accommodating space.

12. The brush assembly according to claim 8, characterized in that: The magnetic attraction piece is in the shape of a disc or a round cap.

13. The brush assembly according to claim 9, characterized in that: The magnetic attraction piece is in a circular ring shape, and lubricating grease and fine hair cannot be lost from the gap between the magnetic attraction piece and the docking portion.

14. The brush assembly according to claim 8, characterized in that: An outer side wall of the brush assembly installation portion is provided with a detachable magnetic sheet.

15. A cleaning head mechanism, characterized in that: It comprises a brush mounting portion, a transmission assembly and a roller assembly, and the brush assembly according to any one of claims 1 to 14; The brush assembly is installed on the brush installation portion, and the transmission assembly is respectively connected to the brush body of the brush assembly and the roller assembly in a transmission manner; The roller assembly can rotate under the action of an external driving force, so as to drive the brush body to rotate in the same direction relative to the roller assembly through the transmission action of the transmission assembly.

16. The cleaning head mechanism according to claim 15, characterized in that: The transmission assembly includes a first gear member, a second gear member and a third gear member; The first gear member is connected to the roller assembly; The third gear member is coupled to the brush body; The second gear member is meshed with the first gear member and the third gear member, respectively.

17. A cleaning device, characterized in that: It comprises the cleaning head mechanism according to any one of claims 15 to 16 and a handle matched with the cleaning head mechanism, wherein the handle is mounted on a handle mounting portion of the cleaning head mechanism.

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