CN217222580U - Brush cleaning mechanism - Google Patents

Abstract

The utility model discloses a brush cleaning mechanism. The brush cleaning mechanism comprises a support frame, a first brush assembly and a second brush assembly, wherein the first brush assembly comprises a first brush roller, the second brush assembly comprises a second brush roller, the first brush roller can be far away from or close to the second brush roller, and the second end of the second brush assembly can swing around the first end. According to the utility model discloses a clean mechanism of brush, the clean mechanism of brush can independently open and shut, and the convenience is cleaned the cleaning member of treating of different thickness, and the second brush subassembly can be wholly emptyd, enlarges the operable space, conveniently changes the brush roller.

Description

Brush cleaning mechanism

Technical Field

The utility model relates to a battery technology field particularly, relates to a clean mechanism of brush.

Background

The lithium battery industry is increased explosively at present, so that the requirements on lithium battery processes and devices are higher and higher, and the cleanliness of the lithium battery is particularly important. At present, a brush cleaning mechanism is one of main cleaning mechanisms in the lithium battery industry, a brush roller of the brush cleaning mechanism belongs to a wearing part, and the contradiction which is difficult to reconcile is formed between the high replacement frequency and the narrow space of equipment. The existing brush cleaning mechanism mainly starts from two aspects: one mode is to sacrifice the convenience of replacement and ensure the compact space of equipment, and the replacement of the brush roller in the mode usually needs to dismantle a large number of peripheral mechanisms, so that the workload is very large and the operation is not easy; the second is to adopt the big stroke brush mechanism that opens and shuts, and both sides leave sufficient space, make things convenient for manual change, and this kind of mode is convenient for the operation, but both sides need leave sufficient space, will directly influence the overall arrangement of equipment and the overall dimension of equipment, increase cost.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least. Therefore, the utility model provides a brush cleaning mechanism can independently open and shut, enlarges the operating space, conveniently changes the brush roller.

According to the utility model discloses clean mechanism of brush, include: a support frame; the first brush assembly comprises a first brush frame and a first brush roller, the first brush frame is arranged on the supporting frame, the first brush roller is arranged on the first brush frame, and the first brush roller can be far away from or close to the second brush assembly; the second brush assembly comprises a second brush frame and a second brush roller, the second brush roller is arranged on the second brush frame, the first end of the second brush frame is installed on the supporting frame, and the second end of the second brush frame can swing around the first end, so that the second end is far away from or close to the first brush assembly.

According to the utility model discloses a clean mechanism of brush, the clean mechanism of brush can independently open and shut, and the convenience is cleaned the cleaning member of treating of different thickness, and the second brush subassembly can be wholly emptyd, enlarges the operable space, conveniently changes the brush roller.

According to some embodiments of the present invention, the first end of the second brush holder is installed in the support frame through the swivel mount, the brush cleaning mechanism further comprises an actuating lever, the actuating lever is constructed as a telescopic lever and is disposed away from the second brush holder one side of the first brush assembly, one end of the actuating lever is installed in the support frame, the other end of the actuating lever is connected with the second brush holder.

According to the utility model discloses a some embodiments, still be provided with the supporting seat on the support frame, be provided with the anticollision piece on the supporting seat, the anticollision piece has the anticollision inclined plane, the inclination on anticollision inclined plane with the biggest inclination of second brush yoke is unanimous.

According to some embodiments of the invention, the drive rod is one of a nitrogen spring, a cylinder, a hydraulic cylinder.

According to the utility model discloses a some embodiments, still be provided with fixed knot on the second brush yoke, fixed knot be suitable for with support frame locking or unblock, just fixed knot lock in during the support frame, the second brush yoke the second end with the distance of first brush subassembly is nearest.

According to the utility model discloses a some embodiments, first brush yoke with every brush yoke in the second brush yoke all includes chassis and sideslip board, the chassis is installed on the support frame, first brush roller with every brush roller in the second brush roller is installed in the correspondence the sideslip board, the clean mechanism of brush is still including the drive arrangement that opens and shuts, the drive arrangement that opens and shuts is used for the drive the sideslip board is corresponding lateral shifting on the chassis.

According to some embodiments of the utility model, the drive arrangement that opens and shuts is including the knob that opens and shuts, the lead screw that opens and shuts and the nut, the lead screw that opens and shuts install in the chassis, the knob that opens and shuts is used for the drive the lead screw that opens and shuts rotates, the nut with the lead screw spiro union that opens and shuts, just the nut is fixed in the sideslip board, or, the nut forms to a part of sideslip board.

According to some embodiments of the utility model, first brush subassembly with the second brush subassembly all includes the main drive axle, the one end of brush roller with correspond the connection can be dismantled to the main drive axle, the other end of brush roller passes through coupling assembling to be installed in corresponding the sideslip board, coupling assembling includes elastic element, bush, connecting axle, locking screw, the connecting axle with correspond the cooperation of pegging graft of brush roller, elastic element is suitable for right the orientation is applyed to the connecting axle the elastic force of brush roller, the bush is installed in corresponding the sideslip board, the connecting axle is worn to establish the bush, locking screw with the connecting axle is connected, just locking screw is used for preventing the connecting axle breaks away from corresponding the sideslip board.

According to some embodiments of the utility model, the one end of brush roller has the U-shaped groove, the other end of brush roller has the spline groove, the connecting axle is the integral key shaft just the connecting axle with the spline groove cooperation of pegging graft, the main drive axle with be connected through the bayonet lock between the U-shaped groove, elastic element is compression spring, compresses during compression spring, the main drive axle with correspond the brush roller separation.

According to the utility model discloses a some embodiments, the mounting hole has been seted up on the brush yoke, the bush install in the sideslip board, the connecting axle has spacing chimb, spacing chimb is suitable for spacingly be in the orientation of bush the one end of brush roller, locking screw's screwhead is suitable for spacingly be in deviating from of bush the one end of brush roller.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic view of the brush cleaning mechanism in an operating state;

FIG. 2 is a schematic view of the brush cleaning mechanism with the second brush assembly tilted;

FIG. 3 is a schematic view of the construction of the brush roller;

FIG. 4 is a cross-sectional view of a brush roller;

FIG. 5 is a partial enlarged view of the area a in FIG. 4;

FIG. 6 is a top view of the first brush assembly;

FIG. 7 is a top view of the second brush assembly.

Reference numerals are as follows:

1: a first brush assembly; 11: a first brush holder; 12: a first brush roller; 13: a first chassis; 14: a first traverse plate; 15: a first opening and closing drive device; 151: a first opening and closing knob; 152: a first opening and closing screw rod; 153: a first nut; 2: a second brush assembly; 21: a second brush holder; 22: a second brush roller; 23: a second chassis; 24: a second traverse plate; 25: a second opening and closing drive device; 3: a rotating base; 4: a drive rod; 5: a supporting seat; 6: an anti-collision block; 7: a fixing buckle; 8: a main drive shaft; 9: an elastic element; 10: a bushing; 16: a connecting shaft; 17: locking the screw; 18: a bayonet lock; 19: a member to be cleaned; 20: and (4) a deionization air bar.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening components, or may involve the communication of components within two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

At present, the clean mechanism of brush is one of the main clean mechanism of lithium electricity trade, and the brush roller of the clean mechanism of brush itself belongs to vulnerable part, has formed the contradiction that is difficult to reconcile between its higher change frequency and the narrow and small space of equipment, if the space is too big between the brush roller, then equipment area is too big, if the space undersize between the brush roller, changes the brush roller and need dismantle a large amount of mechanisms in periphery again, does not operate well moreover. The present application is directed to a brush cleaning mechanism to solve the above problems.

A brush cleaning mechanism according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 7.

Referring to fig. 1, the brush cleaning mechanism includes a support frame (not shown), a first brush assembly 1 and a second brush assembly 2.

The supporting frame is used for supporting the first brush component 1 and the second brush component 2, the first brush component 1 and the second brush component 2 respectively comprise a brush roller, and the surface of the to-be-cleaned part 19 can be cleaned when the brush roller and the to-be-cleaned part 19 move relatively (for example, rotate).

The first brush assembly 1 comprises a first brush holder 11 and a first brush roller 12, the first brush holder 11 is arranged on the support frame, the first brush roller 12 is arranged on the first brush holder 11, and the first brush roller 12 can be far away from or close to the second brush assembly 2. The second brush assembly 2 includes a second brush holder 21 and a second brush roller 22, the second brush roller 22 is disposed on the second brush holder 21, and a first end of the second brush holder 21 is mounted to the support frame. Specifically, the distance between the first brush roller 12 and the second brush roller 22 may be adjusted according to the thickness of the member 19 to be cleaned, and when the thickness of the member 19 to be cleaned is thick, both the first brush roller 12 and the second brush roller 22 may move in a direction away from each other, that is, the first brush roller 12 moves in a direction away from the second brush roller 22, and the second brush roller 22 moves in a direction away from the first brush roller 12, so as to increase the distance between the first brush roller 12 and the second brush roller 22; when the thickness of the member to be cleaned 19 is thin, both the first brush roller 12 and the second brush roller 22 are movable in a direction to approach each other, that is, the first brush roller 12 is movable in a direction to approach the second brush roller 22, and the second brush roller 22 is movable in a direction to approach the first brush roller 12, so as to reduce the distance between the first brush roller 12 and the second brush roller 22.

Further, the second end of the second brush holder 21 can also swing around the first end to move the second end away from or close to the first brush assembly 1. Specifically, referring to fig. 2, when the brush roller needs to be replaced, the first end of the second brush assembly 2 is fixed on the support frame and is fixed, the second end can incline to the direction far away from the first brush assembly 1 by taking the first end as a fulcrum, so that the distance between the first brush assembly 1 and the second brush assembly 2 is increased, the brush roller is convenient to replace, after the brush roller is replaced, the second brush assembly 2 takes the first end as a fulcrum, and the second end returns to the direction close to the first brush assembly 1. Therefore, the problem of space utilization rate is solved, and the problem of convenient and fast disassembly of the brush roller is also solved.

According to some embodiments of the present invention, when the member 19 to be cleaned is a battery, the distance between the first brush assembly 1 and the second brush assembly 2 is adjusted according to the thickness of the battery when cleaning the battery due to the different thicknesses of the battery, so as to satisfy the requirement of cleaning the batteries with different thicknesses.

According to some embodiments of the present invention, referring to fig. 1, the brush cleaning mechanism may further include a de-ionizing air bar 20 to remove dust on the member to be cleaned 19.

According to some embodiments of the present invention, referring to fig. 1 and 2, the first end of the second brush holder 21 can be mounted on the support frame through the rotary base 3, the brush cleaning mechanism can further include a driving rod 4, the driving rod 4 is configured as a telescopic rod, and the driving rod 4 is disposed on one side of the second brush holder 21 away from the first brush assembly 1, as shown in fig. 1-2, the driving rod 4 is disposed on the right side of the second brush assembly 2. One end of the driving rod 4 is mounted to the supporting frame, and the other end of the driving rod 4 is connected to the second brush holder 21. Specifically, when second brush subassembly 2 is in operating condition, actuating lever 4 is in the state of lengthening, the first end of second brush yoke 21 is passed through roating seat 3 and is installed on the support frame, can prevent that the whole second brush yoke 21 of pulling of actuating lever 4, when the brush roller needs to be changed, hold the second of second brush yoke 21 to the direction pulling of keeping away from first brush subassembly 1, at this moment, the first end of second brush yoke 21 is fixed on the support frame, actuating lever 4 can lean on self contractile force to hold the second of second brush yoke 21 to the direction pulling of keeping away from first brush subassembly 1, make second brush yoke 21 slope certain angle, therefore, the clearance increase between first brush subassembly 1 and the second brush subassembly 2, conveniently change the brush roller.

According to some embodiments of the utility model, referring to fig. 2, in order to make the second brush subassembly 2 that is in the state of empting stable be in certain inclination, still be provided with supporting seat 5 on the support frame, be provided with anticollision piece 6 on the supporting seat 5, anticollision piece 6 has the anticollision inclined plane, and the inclination on anticollision inclined plane is unanimous with the biggest inclination of second brush yoke 21. Specifically, the second brush holder 21 after being toppled leans on the supporting seat 5, and a certain supporting force is provided for the second brush holder 21, and meanwhile, in order to prevent the second brush holder 21 and the supporting seat 5 from colliding, the anti-collision block 6 on the supporting seat 5 can play a role of buffering, and the equipment is prevented from being damaged due to collision. Here, the kind of the crash block 6 is not particularly limited, and may be, for example, a polyurethane crash block.

According to some embodiments of the present invention, the inclination angle of the second brush holder 21 is not particularly limited, for example, the second brush holder 21 can be inclined by 45 degrees, so as to increase the distance between the first brush assembly 1 and the second brush assembly 2, thereby facilitating the replacement of the brush roller.

According to some embodiments of the present invention, the kind of the driving rod 4 is not particularly limited, and specifically, may be one of a nitrogen spring, a cylinder and a hydraulic cylinder, and those skilled in the art may select the driving rod according to actual needs as long as the driving rod can provide power for the inclination of the second brush assembly 2.

According to some embodiments of the present invention, referring to fig. 1 and 7, the second brush holder 21 can be further provided with a fixing buckle 7, i.e. one side of the first end of the second brush holder 21 is fixed on the support frame through the rotary seat 3, the other side is fixed on the support frame through the fixing buckle 7, the fixing buckle 7 is suitable for locking or unlocking with the support frame, and when the fixing buckle 7 is locked on the support frame, the second end of the second brush holder 21 is closest to the first brush assembly 1. Specifically, first brush subassembly 1 can directly pass through the screw fixation on the support frame, in order to make the convenient operation when second brush yoke 21 inclines, replace the screw with fixed knot 7 on the second brush yoke 21, when second brush yoke 21 is in operating condition, fixed knot 7 is in the locking state, and second brush yoke 21 is fixed on the support frame through fixed knot 7, when needs make second brush yoke 21 incline, and direct unblock is fixed to be detained 7, and rethread actuating lever 4 can make second brush yoke 21 incline.

According to some embodiments of the present invention, referring to fig. 6, each of the first brush holder 11 and the second brush holder 21 includes a chassis and a traverse plate, the chassis is installed on the supporting frame, each of the first brush roller 12 and the second brush roller 22 is installed on the corresponding traverse plate, the brush cleaning mechanism further includes an opening and closing driving device, and the opening and closing driving device is used for driving the traverse plate to move transversely on the corresponding chassis. Specifically, when the thickness of the member to be cleaned 19 is thick, the opening and closing driving devices may respectively drive the traverse plates connected to the brush rollers to move in directions away from each other on the base frame to increase the distance between the first brush roller 12 and the second brush roller 22, thereby cleaning the thick member to be cleaned 19; when the thickness of the member to be cleaned 19 is thin, the opening and closing driving means may respectively drive the traverse plates connected to the brush rollers to move in directions close to each other on the base frame to reduce the distance between the first brush roller 12 and the second brush roller 22, thereby cleaning the thin member to be cleaned 19.

According to some embodiments of the utility model, the drive arrangement that opens and shuts is including the knob that opens and shuts, opening and shutting lead screw and nut, and opening and shutting lead screw installs in the chassis, and opening and shutting knob is used for the drive to open and shut the lead screw and rotates, nut and opening and shutting lead screw spiro union, and the nut is fixed in the sideslip board, or, the nut forms to a part of sideslip board.

Specifically, referring to fig. 1 and 6, the first brush holder 11 includes a first chassis 13 and a first traverse plate 14, the first chassis 13 is fixed on the support frame, the first brush roller 12 is mounted on the first traverse plate 14, the brush cleaning mechanism further includes a first opening and closing driving device 15, the first opening and closing driving device 15 includes a first opening and closing knob 151, a first opening and closing screw 152 and a first nut 153, the first opening and closing screw 152 is mounted on the first chassis 13, the first opening and closing knob 151 is used for driving the first opening and closing screw 152 to rotate, the first nut 153 is screwed with the first opening and closing screw 152, and the first nut 153 is fixed on the first traverse plate 14, or the first nut 153 is formed as a part of the first traverse plate 14.

Meanwhile, referring to fig. 1, the second brush holder 21 includes a second chassis 23 and a second traverse plate 24, the second chassis 23 is hinged to the support frame, the second brush roller 22 is mounted on the second traverse plate 24, the brush cleaning mechanism further includes a second opening and closing driving device 25, the second opening and closing driving device 25 includes a second opening and closing knob (not shown), a second opening and closing screw (not shown) and a second nut (not shown), the second opening and closing screw is mounted on the second chassis 23, the second opening and closing knob is used for driving the second opening and closing screw to rotate, the second nut is screwed with the second opening and closing screw, and the second nut is fixed to the second traverse plate 24, or the second nut is formed as a part of the second traverse plate 24.

According to some embodiments of the utility model, referring to fig. 1 and 4, first brush subassembly 1 and second brush subassembly 2 all can include main drive axle 8, brush yoke and brush roller, and the one end and the main drive axle 8 of brush roller can be dismantled and be connected, and the other end of brush roller passes through coupling assembling to be installed in brush yoke. Specifically, one end of a first brush roller 12 of the first brush assembly 1 is connected with the main drive shaft 8, and the other end of the first brush roller 12 is mounted on a first brush holder 11 through a connecting assembly; one end of the second brush roller 22 of the second brush assembly 2 is connected to the corresponding main drive shaft 8, and the other end of the second brush roller 22 is mounted to the second brush holder 21 through a connecting assembly.

Alternatively, referring to fig. 5, the connecting assembly includes an elastic element 9, a bushing 10, a connecting shaft 16, and a locking screw 17, the connecting shaft 16 is in insertion fit with the brush roller, the elastic element 9 is adapted to apply an elastic force to the connecting shaft 16 toward the brush roller, the bushing 10 is mounted on the brush holder, the connecting shaft 16 penetrates the bushing 10, the locking screw 17 is connected with the connecting shaft 16, and the locking screw 17 is used for preventing the connecting shaft 16 from being separated from the brush holder. Specifically, when the brush roller is in a working state, the elastic element 9 extrudes the connecting shaft 16 through pressure to enable the connecting shaft 16 to be in close contact with the brush roller, when the brush roller needs to be replaced, force far away from the direction of the brush roller is applied to the elastic element 9 to enable the elastic element 9 to be compressed, meanwhile, the connecting shaft 16 moves towards the direction far away from the brush roller in the bushing 10, at the moment, one end of the brush roller can be separated from the main driving shaft 8, the brush roller is slightly inclined, and the brush roller can be detached from the brush frame. In addition, since the connecting shaft 16 has the locking screw 17, the connecting shaft 16 is prevented from sliding down in the bush 10 when the connecting shaft 16 slides in the bush 10. From this, can pull down the brush roller fast and change, simultaneously, need not to pull down other subassemblies, make the flow of changing the brush roller labour saving and time saving more.

Alternatively, the liner 10 may be an oilless liner.

According to some embodiments of the utility model, referring to fig. 4 and 5, the one end of brush roller has the U-shaped groove, and the other end of brush roller has the spline groove, and connecting axle 16 is integral key shaft and connecting axle 16 and spline groove grafting cooperation, is connected through bayonet lock 18 between main drive axle 8 and the U-shaped groove, and elastic element 9 is compression spring, and when compressing this compression spring, main drive axle 8 separates with the brush roller. From this, the one end of brush roller passes through bayonet lock 18 and links to each other with main drive shaft 8, the other end of brush roller passes through the spline groove and links to each other with connecting axle 16, when the brush roller is dismantled to needs, only need compress this compression spring, make the one end of brush roller break away from with main drive shaft 8, at this moment, because the spline groove is clearance fit with connecting axle 16, the brush roller inclines slightly, can pull down the brush roller, this in-process, the one end that the brush roller was kept away from to connecting axle 16 has locking screw 17, the one end that connecting axle 16 is close to the brush roller is the spline groove, dismantle the in-process of brush roller, can prevent compression spring from droing.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A brush cleaning mechanism, comprising:

a support frame;

the first brush assembly comprises a first brush frame and a first brush roller, the first brush frame is arranged on the supporting frame, the first brush roller is arranged on the first brush frame, and the first brush roller can be far away from or close to the second brush assembly;

the second brush assembly comprises a second brush frame and a second brush roller, the second brush roller is arranged on the second brush frame, the first end of the second brush frame is installed on the supporting frame, and the second end of the second brush frame can swing around the first end, so that the second end is far away from or close to the first brush assembly.

2. The brush cleaning mechanism according to claim 1, wherein the first end of the second brush holder is mounted to the support frame via a swivel, the brush cleaning mechanism further comprising an actuating rod configured as a telescopic rod and disposed on a side of the second brush holder away from the first brush assembly, one end of the actuating rod being mounted to the support frame, and the other end of the actuating rod being connected to the second brush holder.

3. The brush cleaning mechanism according to claim 2, wherein the supporting frame is further provided with a supporting base, the supporting base is provided with an anti-collision block, the anti-collision block has an anti-collision inclined surface, and an inclination angle of the anti-collision inclined surface is consistent with a maximum inclination angle of the second brush holder.

4. The brush cleaning mechanism according to claim 2, wherein the driving rod is one of a nitrogen spring, a cylinder, and a hydraulic cylinder.

5. The brush cleaning mechanism according to any one of claims 1-4, wherein a retaining buckle is further disposed on the second brush holder, the retaining buckle is adapted to be locked to or unlocked from the support frame, and when the retaining buckle is locked to the support frame, the second end of the second brush holder is closest to the first brush assembly.

6. The brush cleaning mechanism of any one of claims 1-4, wherein each of the first and second brush holders includes a base frame mounted on the support frame and a traverse plate to which each of the first and second brush rolls is mounted, the brush cleaning mechanism further comprising an opening and closing driving device for driving the traverse plate to move laterally on the corresponding base frame.

7. The brush cleaning mechanism according to claim 6, wherein the opening and closing driving means includes an opening and closing knob, an opening and closing lead screw, and a nut, the opening and closing lead screw being mounted to the base frame, the opening and closing knob being used to drive the opening and closing lead screw to rotate, the nut being screwed with the opening and closing lead screw, and the nut being fixed to the traverse plate, or the nut being formed as a part of the traverse plate.

8. The brush cleaning mechanism of claim 6, wherein each of the first and second brush assemblies includes a main driving shaft, one end of each brush roller is detachably connected to the corresponding main driving shaft, the other end of each brush roller is mounted to the corresponding traverse plate through a connecting assembly, the connecting assembly includes an elastic element, a bushing, a connecting shaft, and a locking screw, the connecting shaft is in insertion fit with the corresponding brush roller, the elastic element is suitable for applying an elastic force to the connecting shaft toward the brush roller, the bushing is mounted to the corresponding traverse plate, the connecting shaft penetrates the bushing, the locking screw is connected to the connecting shaft, and the locking screw is used for preventing the connecting shaft from being separated from the corresponding traverse plate.

9. The brush cleaning mechanism of claim 8, wherein one end of the brush roller has a U-shaped slot, the other end of the brush roller has a spline slot, the connecting shaft is a spline shaft and is in plug-in fit with the spline slot, the main driving shaft is connected with the U-shaped slot by a bayonet lock, the elastic element is a compression spring, and when the compression spring is compressed, the main driving shaft is separated from the corresponding brush roller.

10. The brush cleaning mechanism of claim 8, wherein the traverse plate has a mounting hole, the bushing is mounted to the mounting hole, the connecting shaft has a retaining flange adapted to be retained at an end of the bushing facing the brush roller, and a head of the locking screw is adapted to be retained at an end of the bushing facing away from the brush roller.

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