CN222285385U - Cleaning assembly and cleaning device - Google Patents

Abstract

The present application discloses a cleaning assembly and a cleaning device. The cleaning device includes a cleaning assembly, which includes a mounting bracket, a roller component, a scraper, an elastic component and a limiting component. Among them, a mounting space is provided on the mounting bracket. The roller component includes a roller body and a roller mop, the roller body is rotatably connected in the mounting space, and the roller mop is provided on the outer periphery of the roller body. The first end of the scraper is movably connected to the mounting bracket, and the second end of the scraper opposite to the first end abuts against the roller mop. The elastic component is provided between the mounting bracket and the scraper, and the elastic component applies elastic force to the scraper so that the second end of the scraper has a tendency to move toward the roller mop. The limiting component is provided between the mounting bracket and the scraper, and the limiting component is used to limit the maximum displacement of the scraper moving toward the roller mop. The cleaning assembly and the cleaning device disclosed in the present application solve the problem of the roller being stuck in the prior art.

Description

Cleaning assembly and cleaning device

Technical Field

The application relates to the technical field of floor cleaning, in particular to a cleaning assembly and a cleaning device.

Background

Common cleaning devices include cleaners, mops and sweeping robots. The dust collector and the mop need to be operated manually, and the sweeping robot can automatically monitor the environment through a program arranged inside, so that the floor is automatically cleaned.

The sweeping robot is provided with a sweeping component, the sweeping component comprises a roller and a scraping plate, a roller mop is sleeved on the periphery of the roller, the sweeping component is mainly used for sweeping dirt on the ground, and the scraping plate is abutted to the roller mop and is used for scraping out sewage and dirt on the roller mop. However, with long-term use of the scraper, the contact part of the scraper and the mop is easy to wear, so that the scraper cannot press the mop, and the scraper is ineffective. In order to solve the above problems, chinese patent CN218606412U discloses a sweeping assembly of a sweeping robot and a sweeping robot, in which an elastic member is disposed between a scraper of the sweeping assembly and a housing, so that the scraper has a tendency to move toward a drum mop. When the scraping plate is worn, the scraping plate still abuts against the roller mop under the elastic action of the elastic piece, so that the problem of failure of the scraping plate is avoided.

However, in chinese patent CN218606412U, the roller may be locked when the force of the scraper against the roller mop is excessive due to the elastic force exerted on the scraper by the elastic member.

Disclosure of utility model

The application provides a cleaning assembly and a cleaning device, which at least solve the problem that a roller is blocked in the prior art.

According to one aspect of the present application there is provided a cleaning assembly comprising:

the mounting bracket is provided with a mounting space;

A drum part including a drum body rotatably connected in the installation space and a drum mop provided at the outer circumference of the drum body;

A scraper, a first end of which is movably connected to the mounting bracket, and a second end of which opposite to the first end is propped against the roller mop;

An elastic member disposed between the mounting bracket and the scraper, the elastic member applying an elastic force to the scraper such that a second end of the scraper has a tendency to move toward the roller mop;

And the limiting component is arranged between the mounting bracket and the scraping plate and is used for limiting the maximum displacement of the scraping plate moving towards the roller mop.

Further, the mounting bracket is provided with an avoidance hole, the limiting part comprises a limiting part, the limiting part penetrates through the avoidance hole and is connected with the scraping plate, and the limiting part can move relative to the axis direction of the avoidance hole and is stopped on the mounting bracket so as to limit the maximum displacement of the scraping plate moving towards the roller mop.

Further, the limiting piece is provided with a connecting section and a flange section, the connecting section penetrates through the avoidance hole and is connected with the scraping plate, the flange section is connected with one end, away from the scraping plate, of the connecting section and protrudes out of the outer peripheral surface of the connecting section, and along a first direction, part of projection surfaces of the avoidance hole are located in projection surfaces of the flange section.

Further, the distance L1 between the avoidance hole and the flange section satisfies the relation of L1 which is more than or equal to 0 and less than or equal to 5mm.

Further, the avoidance holes at least comprise two, and the at least two avoidance holes are arranged at intervals along the axial direction of the roller main body;

The limiting parts at least comprise two limiting parts, and at least two limiting parts and at least two avoidance holes are arranged in one-to-one correspondence.

Further, a support column is arranged on one side, close to the mounting support, of the scraper, a connecting hole is formed in the support column, the limiting piece is fixed on the support column through the connecting hole, and the support column is arranged in the avoidance hole in a swinging mode.

Further, an avoidance notch is formed in the side wall of the avoidance hole, the avoidance notch is located on one side of the support column in the swing direction, and the width L2 of the avoidance notch and the diameter L3 of the support column meet the relation that L2-L3 is smaller than or equal to 0.1mm and smaller than or equal to 0.2mm.

Further, the scraping plate comprises a mounting part and a scraping part, the mounting part is movably connected to the mounting bracket, and the scraping part is propped against the roller mop;

the device comprises a mounting part, a water scraping part, a clamping groove and a clamping protrusion, wherein the clamping protrusion is arranged on one of the mounting part and the water scraping part, the clamping groove is arranged on the other one of the mounting part and the water scraping part, and the clamping protrusion is inserted into the clamping groove and used for connecting the mounting part with the water scraping part.

Further, the mounting bracket is provided with a first rotating shaft in a penetrating manner along the axial direction of the roller main body, and the mounting part is rotatably sleeved on the first rotating shaft;

The elastic component includes the torsional spring, the torsional spring cover is established in first pivot, just the first end of torsional spring supports and is in on the installing support, the second end of torsional spring supports and is supported on the scraper blade, so that the second end of scraper blade has orientation the trend of cylinder mop motion.

On the other hand, the application also provides a cleaning device which comprises the cleaning assembly.

Compared with the prior art, the application is provided with the limiting component, and the limiting component is arranged between the mounting bracket and the scraper and is used for limiting the maximum displacement of the scraper towards the roller mop. That is, the limiting component can apply a force opposite to the elastic force applied to the scraper by the elastic component when the scraper applies a larger pressure to the roller mop, so that the pressure applied to the roller mop by the scraper is weakened, and the roller main body and the roller mop are prevented from being blocked by the scraper.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

FIG. 1 is a schematic view of a cleaning assembly of the present disclosure in a first view;

FIG. 2 is a schematic view of a cleaning assembly according to the present disclosure in a second view;

FIG. 3 is a schematic view of the disclosed cleaning assembly in a third view (with portions of the limiter removed);

FIG. 4 is a schematic view of the disclosed cleaning assembly in a fourth view (with the mounting bracket removed);

FIG. 5 is an enlarged schematic view of region I of FIG. 1;

FIG. 6 is an enlarged schematic view of region II of FIG. 3;

FIG. 7 is an enlarged schematic view of region III of FIG. 2;

FIG. 8 is a schematic cross-sectional view of a cleaning assembly of the present disclosure;

Fig. 9 is a schematic view of the structure of the presently disclosed screed.

Wherein the above figures include the following reference numerals:

10. The device comprises a mounting bracket, 11, an avoidance hole, 12, a first rotating shaft, 13, a mounting space, 20, a scraper, 21, a mounting part, 22, a water scraping part, 30, a roller part, 31, a roller main body, 32, a roller mop, 40, an elastic part, 41, a torsion spring, 50, a limiting part, 51, a limiting part, 52, a support column, 111, an avoidance notch, 211, a clamping protrusion, 221, a clamping groove, 511, a connecting section, 512, a flange section, 521 and a connecting hole.

Detailed Description

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the authorization specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Referring to fig. 1 to 9, according to an embodiment of the present application, there is provided a cleaning device, which may be, for example, a sweeper, a scrubber, or the like. The cleaning apparatus includes a cleaning assembly including a mounting bracket 10, a roller member 30, a scraper 20, an elastic member 40, and a limiting member 50.

Wherein the mounting bracket 10 is provided with a mounting space 13. The drum part 30 includes a drum main body 31 and a drum mop 32, the drum main body 31 being rotatably coupled in the installation space 13, the drum mop 32 being disposed at the outer circumference of the drum main body 31. A first end of scraper 20 is movably connected to mounting bracket 10 and a second end of scraper 20 opposite the first end abuts against roller mop 32. An elastic member 40 is provided between the mounting bracket 10 and the scraper 20, and the elastic member 40 applies an elastic force to the scraper 20 so that the second end of the scraper 20 has a tendency to move toward the roller mop 32. A limiting member 50 is provided between the mounting bracket 10 and the scraper 20, the limiting member 50 being used to limit the maximum displacement of the scraper 20 towards the roller mop 32.

In this embodiment, the second end of the squeegee 20 abuts against the roller swab 32 to scrape dirt and sewage from the roller swab 32 when the cleaning device is cleaning. When the second end of the blade 20 is worn, since the elastic member 40 is provided between the mounting bracket 10 and the blade 20, the elastic member 40 is compressed in the initial state, and the elastic member 40 applies an elastic force to the blade 20 in order to return to the uncompressed state. Meanwhile, since the first end of the scraper 20 is movably mounted on the mounting bracket 10, the elastic force applied to the scraper 20 by the elastic member 40 can make the worn scraper 20 abut against the roller mop 32 again.

In addition, since the scraper 20 is abutted against the roller mop 32 due to the elastic member 40, and the roller mop 32 is a flexible member, the scraper 20 is abutted against the roller mop 32 to deform the roller mop 32 to a certain extent, and when the elastic member 40 applies excessive pressure to the roller mop 32, the roller body 31 and the roller mop 32 may be blocked and cannot move. In order to solve the above-mentioned problems, a limiting member 50 is provided in the present embodiment, and the limiting member 50 is provided between the mounting bracket 10 and the scraper 20, and serves to limit the maximum displacement of the scraper 20 toward the roller mop 32. That is, the limiting member 50 is capable of applying a force to the squeegee 20 opposite to the elastic force applied to the squeegee 20 by the elastic member 40 when the squeegee 20 applies a large pressure to the roller mop 32, thereby reducing the pressure applied to the roller mop 32 by the squeegee 20 and preventing the roller body 31 and the roller mop 32 from being stuck by the squeegee 20.

Meanwhile, when the cleaning apparatus is used for a long period of time, excessive wear of blade 20 is liable to occur, and in severe cases, components of blade 20 not used for wear may also be worn out and damaged. However, the limiting member 50 of the present embodiment also has the function of limiting the abrasion loss of the scraper 20, that is, when the supporting force applied to the scraper 20 by the limiting member 50 is exactly equal to the elastic force applied to the scraper 20 by the elastic member 40, the abrasion loss of the scraper 20 reaches the maximum, and the scraper 20 does not continuously abut against the roller mop 32 under the action of the limiting member 50.

Further, the mounting bracket 10 is provided with the avoidance hole 11, the limiting part 50 comprises a limiting part 51, the limiting part 51 penetrates through the avoidance hole 11 and is connected with the scraper 20, and the limiting part 51 can move relative to the axis direction of the avoidance hole 11 and is stopped on the mounting bracket 10 to limit the maximum displacement of the scraper 20 towards the roller mop 32.

Specifically, when the scraper 20 applies a large pressure to the roller mop 32, the limiting piece 51 is abutted against the mounting bracket 10 under the driving of the scraper 20, the limiting piece 51 receives the supporting force applied by the mounting bracket 10, and the limiting piece 51 applies a supporting force to the scraper 20 through the force transmission function, so that the pressure of the scraper 20 to the roller mop 32 is weakened. Meanwhile, when the abrasion amount of the scraper 20 reaches the maximum value, the limiting member 51 is stopped on the mounting bracket 10, and the supporting force applied by the limiting member 51 to the scraper 20 is used for balancing the elastic force applied by the elastic member 40 to the scraper 20, so that the scraper 20 is finally stopped moving towards the roller mop 32.

Further, the limiting member 51 has a connecting section 511 and a flange section 512, the connecting section 511 penetrates through the avoidance hole 11 and is connected with the scraper 20, the flange section 512 is connected to one end of the connecting section 511 away from the scraper 20 and protrudes out of the outer peripheral surface of the connecting section 511, and along a first direction (e.g. a Z direction in fig. 1), a part of the projection surface of the avoidance hole 11 is located in the projection surface of the flange section 512.

In this embodiment, the fact that the part of the projection surface of the escape hole 11 is located in the projection surface of the flange section 512 means that the flange section 512 cannot pass through the escape hole 11. Flange segment 512, when in contact with the outer surface of relief hole 11, acts as a stop for screed 20. That is, when excessive pressure is applied to the roller mop 32 by the scraper 20, the flange section 512 abuts against the outer surface of the escape hole 11 away from the scraper 20, so that the mounting bracket 10 applies a supporting force to the flange section 512, which makes it difficult for the scraper 20 to move toward the roller mop 32, thereby preventing the roller member 30 from being jammed.

As shown in FIG. 8, the distance L1 between the relief hole 11 and the flange section 512 satisfies the relationship of 0.ltoreq.L1.ltoreq.5 mm.

Specifically, the provision of a distance L1 between the relief aperture 11 and the flange section 512 enables the cleaning device to be provided with a pressure which adjusts the amount of pressure exerted by the scraper 20 against the roller mop 32. That is, if the pressure applied to the roller mop 32 by the scraper 20 is large, the flange section 512 abuts against the outer surface of the escape hole 11, and at this time L1 is 0, the stopper 51 applies a supporting force to the scraper 20 to reduce the elastic force applied to the roller mop 32 by the scraper 20, so that the roller body 31 and the roller mop 32 are prevented from stopping rotating. The distance L1 can be used to adjust the amount of holding force applied by retainer 51 to screed 20, and when the maximum value of L1 is large, e.g., L1 is greater than 5mm, the holding force applied by retainer 51 to screed 20 is small when flange segment 512 abuts against the outer surface of relief hole 11. The value of L1 may be 0, 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm and 5mm.

Further, the avoidance holes 11 include at least two, and at least two avoidance holes 11 are disposed at intervals along the axial direction of the drum body 31. The limiting members 51 at least comprise two limiting members 51 and at least two avoidance holes 11 which are arranged in one-to-one correspondence.

As shown in fig. 1 to 4, in a specific embodiment, the avoidance holes 11 include two avoidance holes 11, the two avoidance holes 11 are disposed on the mounting bracket 10 at intervals along the axial direction of the roller body 31, the limiting members 51 include two, and the two limiting members 51 respectively pass through the two avoidance holes 11 and are connected with the scraper 20. Considering that the supporting force applied by the stopper 51 received everywhere in the axial direction of the blade 20 may be different due to the influence of gravity or other external force. Therefore, by providing the two escape holes 11 and the two stoppers 51 in the present embodiment, the urging force of the stoppers 51 applied to the blade 20 everywhere in the axial direction is made as uniform as possible. Of course, in some embodiments, relief holes 11 and stop 51 may also be included in multiple numbers, further providing more uniform support to stop 51 throughout screed 20.

Further, a support column 52 is provided on one side of the scraper 20 near the mounting bracket 10, a connection hole 521 is provided on the support column 52, a limiting member 51 is fixed on the support column 52 through the connection hole 521, and the support column 52 is swingably provided in the avoidance hole 11.

Specifically, setting up of support column 52 can improve the joint strength of locating part 51 and scraper blade 20, avoids when scraper blade 20 receives the elastic force of elastomeric element 40 to produce the motion, and locating part 51 is because the joint strength with the scraper blade is lower, leads to locating part 51 and scraper blade 20 to separate for the too big pressure that scraper blade 20 applyed to cylinder mop 32, cylinder part 30 stops rotating. Further, in the present embodiment, the support columns 52 include at least two, and the two support columns 52 are disposed at intervals along the axial direction of the drum main body 31 and are disposed in one-to-one correspondence with the at least two stoppers 51.

In order to avoid interference between the support column 52 and the avoidance hole 11 when the scraper 20 moves, in this embodiment, the side wall of the avoidance hole 11 is provided with the avoidance gap 111, the avoidance gap 111 is located at one side of the support column 52 in the swinging direction, and the width L2 of the avoidance gap 111 and the diameter L3 of the support column 52 satisfy the relation that 0.1mm is less than or equal to L2-L3 is less than or equal to 0.2mm.

Specifically, when the width L2 of the avoidance gap 111 and the diameter L3 of the support column 52 satisfy the relation 0.1mm being less than or equal to L2-L3 being less than or equal to 0.2mm, the avoidance gap 111 is neither too large nor too small relative to the support column 52, on one hand, interference between the support column 52 and the avoidance hole 11 can be avoided when the scraper 20 moves and drives the support column 52 to move, and on the other hand, the support column 52 cannot be completely separated from the avoidance hole 11 when moving, so that the flange section 512 cannot be propped against the mounting bracket 10. When L2-L3 is less than 0.1mm, the distance between the inner wall surface of the avoidance hole 11 and the support column 52 is smaller, and interference between the support column 52 and the avoidance hole 11 is easily caused. When L2-L3 is greater than 0.2mm, the distance between the support column 52 and the inner wall surface of the avoidance hole 11 is too large, which may cause the support column 52 to be driven by the scraper 20, the flange section 512 is penetrated by the avoidance gap 111, so that the flange section 512 cannot abut against the mounting bracket 10 to limit the scraper 20, and finally the roller component 30 may stop rotating under the pressure of the scraper 20. The values of L2-L3 may be 0.1mm, 0.11mm, 0.12mm, 0.13mm, 0.14mm, 0.15mm, 0.16mm, 0.17mm, 0.18mm, 0.19mm and 0.2mm.

As shown in fig. 9, the scraper 20 comprises a mounting part 21 and a wiper part 22, the mounting part 21 is movably connected to the mounting bracket 10, and the wiper part 22 abuts against the roller mop 32. Wherein, the mounting part 21 and the wiper part 22 are provided with a clamping protrusion 211, and the other is provided with a clamping groove 221, and the clamping protrusion 211 is inserted into the clamping groove 221 for connecting the mounting part 21 and the wiper part 22.

Specifically, in the present embodiment, the member for abrasion on the blade 20 is the wiper portion 22, and the member for connection to the mounting bracket 10 is the mounting portion 21. The mounting portion 21 and the wiper portion 22 are detachably connected by a structure of a locking protrusion 211 and a locking groove 221. When the wiper portion 22 needs to be replaced, the wiper portion 22 is only required to be detached separately, and a new wiper portion 22 is connected to the mounting portion 21. The embodiment has the advantages of convenient structure and low manufacturing cost. Further, a support column 52 is provided on the wiper portion 22 and is connected to the connection section 511 after passing through the mounting portion 21.

In a specific embodiment, the mounting portion 21 is provided with a plurality of clamping grooves 221 spaced along the axial direction of the drum body 31, the wiper portion 22 is provided with a plurality of clamping protrusions 211 spaced along the axial direction of the drum body 31, and the plurality of clamping protrusions 211 are inserted into the plurality of clamping grooves 221 in a one-to-one correspondence manner, so as to improve the connection stability between the wiper portion 22 and the mounting portion 21.

Further, the mounting bracket 10 is provided with a first shaft 12 penetrating along the axial direction of the drum body 31, and the mounting portion 21 is rotatably sleeved on the first shaft 12. The elastic member 40 includes a torsion spring 41, the torsion spring 41 is sleeved on the first rotating shaft 12, and a first end of the torsion spring 41 abuts against the mounting bracket 10, and a second end of the torsion spring 41 abuts against the scraper 20, so that the second end of the scraper 20 has a tendency to move towards the roller mop 32.

Specifically, during installation, the torsion spring 41 is in a compressed state, the first end of the torsion spring 41 abuts against the mounting bracket 10, and since the mounting bracket 10 is fixed, the second end of the torsion spring 41 abutting against the scraper 20 applies elastic force to the scraper 20, so that the mounting part 21 rotates on the first rotating shaft 12, and the second end of the scraper 20 is driven to move towards the roller mop 32 after the mounting part 21 rotates. When the wiper part 22 wears, the wiper part 22 continues to collide against the roller mop 32 under the action of the second end of the torsion spring 41.

In a specific embodiment, the torsion springs 41 include a plurality of torsion springs 41, the plurality of torsion springs 41 are sleeved on the first rotating shaft 12 at intervals along the extending direction of the first rotating shaft 12, and the first ends of the plurality of torsion springs 41 are propped against the mounting bracket 10, and the second ends of the plurality of torsion springs 41 are propped against the wiper portion 22. Alternatively, the second ends of the plurality of torsion springs 41 each abut against the mounting portion 21.

Spatially relative terms, such as "above," "upper" and "upper surface," "above" and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the process is carried out, the exemplary term "above" may be included. Upper and lower. Two orientations below. The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present application.

The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A cleaning assembly, comprising:

The mounting bracket (10), the mounting bracket (10) is provided with a mounting space (13);

A drum part (30), the drum part (30) comprising a drum body (31) and a drum mop (32), the drum body (31) being rotatably connected within the installation space (13), the drum mop (32) being arranged at the periphery of the drum body (31);

A scraper (20), a first end of the scraper (20) is movably connected to the mounting bracket (10), and a second end of the scraper (20) opposite to the first end is propped against the roller mop (32);

An elastic member (40), the elastic member (40) being disposed between the mounting bracket (10) and the scraper (20), the elastic member (40) applying an elastic force to the scraper (20) so that a second end of the scraper (20) has a tendency to move toward the roller mop (32);

And the limiting component (50) is arranged between the mounting bracket (10) and the scraping plate (20), and the limiting component (50) is used for limiting the maximum displacement of the scraping plate (20) towards the roller mop (32).

2. The cleaning assembly according to claim 1, characterized in that the mounting bracket (10) is provided with a avoidance hole (11), the limiting part (50) comprises a limiting part (51), the limiting part (51) passes through the avoidance hole (11) and is connected with the scraper blade (20), and the limiting part (51) can move relative to the axis direction of the avoidance hole (11) and stop on the mounting bracket (10) so as to limit the maximum displacement of the scraper blade (20) towards the drum mop (32).

3. The cleaning assembly according to claim 2, characterized in that the limiting member (51) has a connecting section (511) and a flange section (512), the connecting section (511) penetrates through the escape hole (11) and is connected with the scraper (20), the flange section (512) is connected to one end of the connecting section (511) away from the scraper (20) and protrudes out of the outer circumferential surface of the connecting section (511), and in a first direction, a part of the projection surface of the escape hole (11) is located in the projection surface of the flange section (512).

4. A cleaning assembly according to claim 3, characterized in that the distance L1 between the relief aperture (11) and the flange section (512) satisfies the relation 0.ltoreq.l1.ltoreq.5mm.

5. The cleaning assembly according to claim 2, wherein the relief holes (11) comprise at least two, at least two of the relief holes (11) being spaced apart along the axial direction of the drum body (31);

the limiting parts (51) at least comprise two limiting parts (51) and at least two avoidance holes (11) which are arranged in one-to-one correspondence.

6. The cleaning assembly according to claim 2, wherein a supporting column (52) is arranged on one side, close to the mounting bracket (10), of the scraper (20), a connecting hole (521) is formed in the supporting column (52), the limiting piece (51) is fixed on the supporting column (52) through the connecting hole (521), and the supporting column (52) is arranged in the avoidance hole (11) in a swinging mode.

7. The cleaning assembly according to claim 6, wherein an avoidance notch (111) is formed in the side wall of the avoidance hole (11), the avoidance notch (111) is located on one side of the support column (52) in the swing direction, and the relation between the width L2 of the avoidance notch (111) and the diameter L3 of the support column (52) is 0.1 mm-L2-L3-0.2 mm.

8. A cleaning assembly according to any one of claims 1-7, characterized in that the scraper (20) comprises a mounting portion (21) and a wiper portion (22), the mounting portion (21) being movably connected to the mounting bracket (10), the wiper portion (22) being pressed against the roller mop (32);

wherein, the installation part (21) and the wiper part (22) are provided with a clamping protrusion (211), and the other one is provided with a clamping groove (221), and the clamping protrusion (211) is inserted into the clamping groove (221) so as to be used for connecting the installation part (21) with the wiper part (22).

9. The cleaning assembly according to claim 8, wherein the mounting bracket (10) is provided with a first rotating shaft (12) in a penetrating manner along the axial direction of the roller main body (31), and the mounting part (21) is rotatably sleeved on the first rotating shaft (12);

The elastic component (40) includes torsional spring (41), torsional spring (41) cover is established on first pivot (12), just the first end of torsional spring (41) is supported and is propped on installing support (10), the second end of torsional spring (41) is supported on scraper blade (20), so that the second end of scraper blade (20) has the trend of orientation cylinder mop (32) motion.

10. A cleaning device comprising the cleaning assembly of any one of claims 1 to 9.