CN112690724A

CN112690724A - Scraping strip, rolling brush cover assembly, rolling brush mechanism and sweeping robot

Info

Publication number: CN112690724A
Application number: CN202011553869.0A
Authority: CN
Inventors: 黄忠平; 唐兴潮; 余丛; 李健; 林海利; 武朝阳
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-04-23

Abstract

The invention relates to a scraping strip, a rolling brush cover component, a rolling brush mechanism and a sweeping robot, wherein the scraping strip comprises a connecting part, a scraping body and an anti-reflection part, and the scraping body is connected with the connecting part and extends along a first direction; the scraping body is provided with an upper surface and a lower surface which are opposite along a second direction perpendicular to the first direction, the anti-reflection part is convexly arranged on the lower surface of the scraping body, and the anti-reflection part is provided with a working surface back to the lower surface and is configured into a nonlinear strip-shaped plane. Therefore, the anti-reflection part is additionally arranged on the lower surface of the scraping body facing the ground, the working surface of the anti-reflection part contacting with the ground is designed into a nonlinear strip-shaped plane, and when the anti-reflection part contacts with the ground, the working surface is tightly attached to the ground to collect garbage. And, the size of working face in advancing direction is wider, and frictional force is great, prevents to scrape the strip and receive external force effect backward and buckle with the opposite direction of advancing, guarantees clean effect.

Description

Scraping strip, rolling brush cover assembly, rolling brush mechanism and sweeping robot

Technical Field

The invention relates to the technical field of intelligent household appliances, in particular to a scraping strip, a rolling brush cover component, a rolling brush mechanism and a sweeping robot

Background

Along with the development of economy and the progress of society, the quality requirement of people on life is higher and higher, so some intelligent electrical appliances capable of freeing hands are produced. The sweeping robot is used as one of intelligent household appliances and plays an increasingly important role in daily life of people.

The sweeping robot generally comprises a dust collection system, a traveling system and a power supply system, wherein the dust collection system is used for collecting dust on the ground, the traveling system is used for driving the sweeping robot to move, and the power supply system is used for providing working energy for the dust collection system and the traveling system. Generally, the dust collecting system includes a rolling brush mechanism, the rolling brush mechanism includes a housing, a rolling brush assembly and a rolling brush cover assembly, the rolling brush cover assembly is connected to the housing and encloses to form a rolling brush cavity, and the rolling brush assembly is disposed in the rolling brush cavity to be installed in the rolling brush cavity and protect the rolling brush assembly. The rolling brush cover assembly comprises a rolling brush cover, a scraping strip and a pressing plate, the root of the scraping strip is abutted between the pressing plate and the rolling brush cover, and the scraping strip is assembled through extrusion of the rolling brush cover and the pressing plate. However, in the process of traveling, if the scraping strip touches large-particle garbage or the ground is uneven, the scraping strip is easily folded back in the direction opposite to the traveling direction, and the garbage cannot be effectively gathered at the dust suction opening to affect the cleaning efficiency.

Disclosure of Invention

The invention provides a scraping strip, a rolling brush cover component, a rolling brush mechanism and a sweeping robot aiming at the problem that the scraping strip is easy to fold reversely.

A scraping strip comprises a connecting part, a scraping body and an anti-reflection part, wherein the scraping body is connected with the connecting part and extends along a first direction;

the scraping body is provided with an upper surface and a lower surface which are opposite in a second direction perpendicular to the first direction, the anti-reflection portion is arranged on the lower surface of the scraping body in a protruding mode, the anti-reflection portion is provided with a working surface back to the lower surface, and the working surface is configured to be a nonlinear strip-shaped plane.

The scraping strip also comprises an anti-reflection part, and the scraping body is connected with the connecting part and extends along the first direction; the scraping body is provided with an upper surface and a lower surface which are opposite along a second direction perpendicular to the first direction, the anti-reflection portion is arranged on the lower surface of the scraping body in a protruding mode, the anti-reflection portion is provided with a working surface back to the lower surface, and the working surface is a plane with a nonlinear belt-shaped plane. Therefore, the anti-reflection part is additionally arranged on the lower surface of the scraping body facing the ground, the working surface of the anti-reflection part contacting with the ground is designed into a nonlinear strip-shaped plane, and when the anti-reflection part contacts with the ground, the working surface is tightly attached to the ground to collect garbage. And, the size of working face in advancing direction is wider, and frictional force is great, prevents to scrape the strip and receive external force effect backward and buckle with the opposite direction of advancing, guarantees clean effect.

In one embodiment, the anti-reflection portion is configured as a wavy strip.

In one embodiment, the anti-reverse portion is configured as a fold-line strip.

In one embodiment, the anti-reflection portion has a third face and a fourth face opposite to each other in a third direction perpendicular to the first direction and the second direction, the third face is connected to the upper surface of the scraper in an intersecting manner, and the fourth face is connected to the lower surface of the scraper in an intersecting manner.

In one embodiment, the anti-reflection part is arranged at one end of the scraping body, which faces away from the connecting part.

In one embodiment, the wiper comprises a rolling brush cover, a pressure plate and the scraping strip, wherein the connecting part is at least partially abutted between the pressure plate and the rolling brush cover.

In one embodiment, the pressing plate is provided with a slot, and the connecting part is at least partially inserted into the slot.

In one embodiment, the connecting part is at least partially assembled in the slot in a limiting way along the direction of the pressing plate pointing to the rolling brush cover.

A rolling brush mechanism comprises the rolling brush cover component.

A sweeping robot comprises the rolling brush mechanism.

Drawings

FIG. 1 is a schematic structural diagram of a rolling brush mechanism according to an embodiment of the present invention;

FIG. 2 is a schematic view of a roller brush cover assembly of the roller brush mechanism of FIG. 1;

FIG. 3 is a schematic view of the alternative view of the roll brush cover assembly shown in FIG. 2;

FIG. 4 is an exploded view of the roll brush cap assembly shown in FIG. 3;

FIG. 5 is a schematic cross-sectional view of the roll brush cover assembly shown in FIG. 3;

FIG. 6 is an enlarged partial view of an exploded view of the roll brush cap assembly shown in FIG. 4;

FIG. 7 is a schematic view of a rolling brush cover assembly according to an embodiment of the present invention;

FIG. 8 is a schematic cross-sectional view of the roll brush cover assembly shown in FIG. 7.

200. A rolling brush mechanism; 210. a roll brush assembly; 100. a roller brush cap assembly; 10. scraping the strips; 12. a connecting portion; 121. a plug section; 123. an abutment section; 125. a first subsection; 127. a second sub-segment; 14. scraping the body; 141. an upper surface; 143. a lower surface; 16. a resisting part; 18. an anti-inversion portion; 181. a working surface; 183. a third surface; 185. a fourth surface; 30. pressing a plate; 31. a slot; 32. a plate body; 34. a support portion; 341. a supporting strip; 343. supporting ribs; 35. a stepped groove; 50. a rolling brush cover; 51. a dust suction port.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the 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 at least one such 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," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

In an embodiment of the present invention, a floor sweeping robot is provided, including a dust collection system, a traveling system and a power supply system, where the dust collection system is used to collect dust on the ground, the traveling system is used to drive the floor sweeping robot to move, and the power supply system is used to provide working energy for the dust collection system and the traveling system.

The dust collection system comprises a rolling brush mechanism, a dust collection box, an air duct and a fan, wherein the dust collection box is connected with an outlet of the rolling brush mechanism, and the air duct is connected between the dust collection box and the fan; the rolling brush mechanism during operation takes the subaerial dust up, then through the suction that the fan produced, will be mixed with the air suction of dust inside the robot of sweeping the floor, the air current that is mixed with the dust is filtered in the dust collecting box when the dust collecting box, and clean air is discharged after the fan from the wind channel, so realizes the dust absorption function.

Referring to fig. 1, the rolling brush mechanism 200 includes a housing (not shown), a rolling brush assembly 210, and a rolling brush cover assembly 100, wherein the rolling brush cover assembly 100 is coupled to the housing and encloses to form a rolling brush cavity, and the rolling brush assembly 210 is disposed in the rolling brush cavity. Specifically, the housing has an opening, the rolling brush assembly 210 is disposed in the housing through the opening, and the rolling brush cover assembly 100 is disposed at the opening and coupled to the housing. In this way, a rolling brush chamber is defined between the housing and the rolling brush cover assembly 100 to assemble the rolling brush assembly 210 in the rolling brush chamber.

Referring to fig. 2-6, in some embodiments, the roll brush cover assembly 100 includes a scraper bar 10 and a pressing plate 30, the scraper bar 10 includes a connecting portion 12 and a scraper 14 (see fig. 5) connected to each other, the pressing plate 30 has a slot 31 (see fig. 6), the connecting portion 12 is at least partially inserted into the slot 31, and the scraper 14 is configured to protrude from the pressing plate 30. The scraping body 14 protrudes relative to the pressing plate 30, and when the sweeping robot works, the scraping body 14 keeps in contact with the ground so as to collect dust near the dust suction opening 51 of the rolling brush cover 50, thereby improving the dust suction efficiency. Moreover, the pressing plate 30 is provided with the insertion groove 31, the connecting portion 12 of the wiper strip 10 is inserted into the insertion groove 31, the wiper strip 10 is preassembled on the pressing plate 30, and then the pressing plate 30 is assembled on the roller cover 50, so that the assembly of the wiper strip 10 is completed. When the pressing plate 30 and the rolling brush cover 50 are assembled, the scraping strip 10 is not shaken to be deviated because the scraping strip 10 is already preassembled in the slot 31, the scraping strip 10 can be conveniently extruded between the pressing plate 30 and the rolling brush cover 50, and convenience in assembling the scraping strip 10 is improved.

Optionally, a plurality of protrusions are arranged on the inner wall of the slot 31 at intervals to improve the friction coefficient of the inner wall of the slot 31, so that the reliability of the assembly of the connecting part 12 of the scraping strip 10 and the slot 31 is improved, the scraping strip 10 is further prevented from shaking relative to the pressing plate 30 to influence the assembly efficiency, and the convenience of the assembly is further improved.

Further, the rolling brush cover assembly 100 further includes a rolling brush cover 50, the pressing plate 30 is connected with the rolling brush cover 50, and the connecting portion 12 is at least partially abutted between the pressing plate 30 and the rolling brush cover 50. A part of the connecting portion 12 of the wiper strip 10 is disposed in the insertion groove 31 to preposition the wiper strip 10, and another part of the connecting portion 12 of the wiper strip 10 abuts between the pressing plate 30 and the brush roll cover 50 to fix the wiper strip 10 again, so that the wiper strip 10 is reliably fixed to the brush roll cover 50.

Specifically, the connecting portion 12 is at least partially fit within the insertion groove 31 in a limited manner in a direction in which the pressing plate 30 is directed toward the roll brush cover 50. That is, in the up-down direction of the pressing plate 30 pointing to the rolling brush cover 50, the connecting portion 12 is limited through the slot 31, the slot 31 is prevented from shaking relative to the pressing plate 30 in the up-down direction, the position of the scraping strip 10 relative to the pressing plate 30 is kept, and the pressing plate 30 and the scraping strip 10 are subsequently only required to be abutted to the rolling brush cover 50 simultaneously, so that the assembly is convenient.

In some embodiments, the connecting portion 12 includes an insertion section 121 and an abutting section 123, the insertion section 121 is inserted into the insertion slot 31, the abutting section 123 is connected between the insertion section 121 and the scraping body 14, and the abutting section 123 abuts between the pressing plate 30 and the rolling brush cover 50. That is, the connecting portion 12 includes two sections, the insertion section 121 is configured to be assembled with the insertion slot 31, and the abutting section 123 is configured to abut between the pressing plate 30 and the rolling brush cover 50, so that the scraping bar 10 can be preassembled on the pressing plate 30 through the insertion section 121, and can also be completely fixed between the pressing plate 30 and the rolling brush cover 50 through the abutting section 123, so that the scraping bar 10 can be simply and reliably assembled on the rolling brush cover 50 to collect the garbage.

Further, the pressing plate 30 includes a plate body 32 and a supporting portion 34, the plate body 32 is provided with a slot 31, the supporting portion 34 is connected to a surface of the plate body 32 provided with the slot 31, and the abutting section 123 abuts between the supporting portion 34 and the rolling brush cover 50. The supporting part 34 is arranged on the pressing plate 30 to support the abutting section 123, the abutting section 123 is pressed through the supporting part 34 and the rolling brush cover 50, the slot 31 is arranged on the side surface adjacent to the supporting part 34, and the insertion section 121 can conveniently stretch into the slot 31 to pre-install the scraping strip 10.

Specifically, the supporting portion 34 includes a supporting strip 341, and the supporting strip 341 is disposed on one side of the plate body 32 coupled to the scraping strip 10 and extends along the longitudinal direction of the slot 31. Meanwhile, the height of the supporting strip 341 is lower than that of the plate body 32, so that the supporting strip 341 and the plate body 32 are arranged in a step shape. At this time, a stepped groove 35 communicating with the insertion groove 31 is formed between the stay 341 and the plate body 32. One surface of the supporting strip 341 facing the stepped groove 35 is at least partially abutted against the abutting section 123, so that the abutting section 123 is press-fitted through the supporting strip 341 facing the stepped groove 35. Moreover, the slot 31 is communicated with the stepped groove 35, so that when the inserting section 121 is inserted into the slot 31, the abutting section 123 connected with the inserting part can fall into the stepped groove 35 and can be fixed through the supporting bar 341.

Optionally, the supporting portion 34 further includes a supporting rib 343, the supporting rib 343 is disposed on a surface of the supporting bar 341 facing the stepped groove 35, and at least a portion of the abutting section 123 abuts against the supporting rib 343. Because the ladder groove 35 is inwards sunken, when corresponding with butt section 123 butt support bar 341 on, butt section 123 also needs the sunken of adaptation, in order to prevent that butt section 123 sunken angle is too big, sets up brace rod 343 in ladder groove 35 for prop up butt section 123, prevent that butt section 123 sunken angle is too big and be not convenient for assemble, improve the assembly convenience.

Specifically, the abutting section 123 includes a first subsection 125 and a second subsection 127 connected at an angle, the second subsection 127 is connected obliquely between the first subsection 125 and the inserting section 121, the support rib 343 is supported on a side of the second subsection 127 facing away from the rolling brush cover 50, and the support bar 341 is supported on a side of the first subsection 125 facing away from the rolling brush cover 50. In this way, a second subsection 127 with an oblique transition is provided between plug section 121 and first subsection 125 to connect plug section 121 and first subsection 125 that are dislocated in height, while second subsection 127 is supported by support ribs 343 to prevent deformation of oblique second subsection 127, thus reliably fitting abutment section 123 into stepped groove 35.

In some embodiments, the wiper strip 10 further includes a resisting portion 16, the resisting portion 16 is connected to the abutting section 123, and the resisting portion 16 abuts against a side of the supporting portion 34 opposite to the plate body 32, so that the resisting portion 16 and the supporting portion 34 are assembled in a limited manner in a direction in which the plate body 32 points to the supporting portion 34, so as to position a position where the wiper strip 10 is assembled on the press strip, so that the wiper strip 10 is accurately assembled at a preset position of the press strip, and the subsequent installation is facilitated.

Referring to fig. 7-8, in some embodiments, the wiper strip 10 further includes an anti-reverse portion 18, and the wiper body 14 is connected to the connecting portion 12 and extends in the first direction. Meanwhile, the scraper 14 has an upper surface 141 and a lower surface 143 opposed to each other in a second direction perpendicular to the first direction, the reflection preventing portion 18 is provided protrudingly on the lower surface 143 of the scraper 14, and has a working surface 181 facing away from the lower surface 143, the working surface 181 being a plane whose plane is configured into a nonlinear belt shape. Thus, the anti-reflection part 18 is added on the lower surface 143 of the scraper 14 facing the ground, the working surface 181 of the anti-reflection part 18 contacting with the ground is designed to be a non-linear strip-shaped plane, so that when the anti-reflection part 18 contacts with the ground, the working surface 181 is in a plane and clings to the ground to collect the garbage. In addition, the working surface 181 has a wider dimension in the traveling direction and a larger friction force, so that the wiper strip 10 is prevented from being bent in the direction opposite to the traveling direction under the action of an external force, and the cleaning effect is ensured.

In the present embodiment in particular, the anti-reflex portion 18 is configured as an undulating strip having an undulating band-like working face 181. It will be appreciated that the anti-inversion portion 18 may also be configured as a fold-line strip having a working face 181 in the form of a fold-line strip. In this way, in the traveling direction of the sweeping robot, the working surface 181 of the anti-reversing part 18 is configured as a bent surface or a curved surface to increase the width of the anti-reversing part 18 in the traveling direction, thereby preventing the anti-reversing part 18 from being bent in the reverse direction of the traveling direction during the traveling of the sweeping robot.

Further, the reverse prevention portion 18 has a third face 183 and a fourth face 185 opposite to each other in a third direction perpendicular to both the first direction and the second direction, the third face 183 intersects and connects with the upper surface 141 of the blade 14, and the fourth face 185 intersects and connects with the lower surface 143 of the blade 14. In this way, the third surface 183 is connected to the upper surface 141 of the scraper bar 10 in an intersecting manner, which is equivalent to the intersecting connection between the anti-reflection portion 18 and the scraper 14, and can be used for pushing the garbage to be collected to the dust collection opening 51, and the anti-reflection portion 18 connected to the scraper 14 in an intersecting manner can enhance the overall strength of the scraper bar 10 and prevent the scraper 14 from being folded back. Specifically, in the present embodiment, the third surface 183 and the fourth surface 185 are both wavy surfaces, and thus constitute a wavy strip-shaped working surface 181 connected between the third surface 183 and the fourth surface 185. It is understood that in other embodiments, the third and

fourth faces

183 and 185 may also be curved faces to form a working face 181 connected between the third and

fourth faces

183 and 185 in the shape of a curved strip.

Specifically, in the present embodiment, the anti-reflection portion 18 is disposed at an end of the scraper 14 opposite to the connecting portion 12, that is, the anti-reflection portion 18 is connected to the free end of the scraper 14 in the traveling direction, so as to reinforce the strength of the free end of the scraper 14 and improve the anti-reflection effect.

Based on the same concept, in an embodiment of the invention, the rolling brush mechanism 200 includes a housing, a rolling brush assembly 210 and a rolling brush cover assembly 100, wherein the rolling brush cover assembly 100 is coupled to the housing and encloses to form a rolling brush cavity, and the rolling brush assembly 210 is disposed in the rolling brush cavity to install and protect the rolling brush assembly 210 through the rolling brush cavity. Specifically, the housing has an opening, the rolling brush assembly 210 is disposed in the housing through the opening, and the rolling brush cover assembly 100 is disposed at the opening and coupled to the housing. In this way, a rolling brush chamber is defined between the housing and the rolling brush cover assembly 100 to assemble the rolling brush assembly 210 in the rolling brush chamber.

In some embodiments, the wiper strip 10 further includes an anti-reverse portion 18, the wiper body 14 being connected to the connecting portion 12 and extending in a first direction; in a second direction perpendicular to the first direction, the scraper body 14 has an upper surface 141 and a lower surface 143 which are opposed to each other, the anti-reflection portion 18 is provided to project from the lower surface 143 of the scraper body 14, the anti-reflection portion 18 has a working surface 181 which faces away from the lower surface 143, and the working surface 181 is a plane whose plane is configured into a nonlinear band shape. Thus, the anti-reflection part 18 is added on the lower surface 143 of the scraper 14 facing the ground, the working surface 181 of the anti-reflection part 18 contacting with the ground is designed to be a non-linear strip-shaped plane, so that when the anti-reflection part 18 contacts with the ground, the working surface 181 is in a plane and clings to the ground to collect the garbage. In addition, the working surface 181 has a wider dimension in the traveling direction and a larger friction force, so that the wiper strip 10 is prevented from being bent in the direction opposite to the traveling direction under the action of an external force, and the cleaning effect is ensured.

Based on the same concept, in an embodiment of the present invention, there is provided the above-mentioned rolling brush cover assembly 100. The roll brush cover assembly 100 includes a wiper strip 10, a pressing plate 30 and a roll brush cover 50, the wiper strip 10 is assembled between the pressing plate 30 and the roll brush cover 50, and the wiper strip 10 includes an anti-reflection portion 18, and the anti-reflection portion 18 prevents the wiper strip 10 from being bent in the reverse direction of the advancing direction, thereby ensuring the cleaning effect.

Based on the same concept, in an embodiment of the present invention, there is provided the above-described wiper strip 10, wherein the wiper strip 10 includes an anti-reverse portion 18, and the anti-reverse portion 18 prevents the wiper strip 10 from being bent in the reverse direction of the traveling direction, thereby ensuring a cleaning effect.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A wiper strip, comprising a connecting portion (12), a wiper body (14) and an anti-reverse portion (18), the wiper body (14) being connected to the connecting portion (12) and extending in a first direction;

in a second direction perpendicular to the first direction, the scraper body (14) has an upper surface (141) and a lower surface (143) which are opposite to each other, the anti-reflection portion (18) is arranged protruding from the lower surface (143) of the scraper body (14), the anti-reflection portion (18) has a working surface (181) facing away from the lower surface (143), and the working surface (181) is configured as a non-linear strip-shaped plane.

2. Bar according to claim 1, characterized in that the anti-reflection portion (18) is configured as a wave-shaped strip.

3. Bar according to claim 1, characterized in that the anti-reflection portion (18) is configured as a fold-line type bar.

4. A wiper strip according to any one of claims 1 to 3, wherein the anti-reverse portion (18) has, in a third direction perpendicular to both the first direction and the second direction, a third face (183) and a fourth face (185) which are opposed, the third face (183) being in intersecting connection with the upper surface (141) of the wiper body (14), the fourth face (185) being in intersecting connection with the lower surface (143) of the wiper body (14).

5. A wiper strip according to any one of claims 1 to 3, characterized in that the anti-return portion (18) is provided at the end of the wiper body (14) facing away from the connecting portion (12).

6. A brush cover (50) assembly, comprising a brush cover (50), a press plate (30) and a wiper strip according to any of the preceding claims 1 to 5, wherein the connecting portion (12) abuts at least partially between the press plate (30) and the brush cover (50).

7. The roller brush cover (50) assembly of claim 6, wherein the pressure plate (30) defines a slot (31), and the connecting portion (12) is at least partially inserted into the slot (31).

8. The roller brush cover (50) assembly of claim 7, wherein the connecting portion (12) is at least partially stop-fit within the socket (31) in a direction in which the pressure plate (30) points toward the roller brush cover (50).

9. A roller brush mechanism, characterized in that it comprises a roller brush cover (50) assembly according to any one of the preceding claims 6-8.

10. A sweeping robot, characterized in that it comprises the rolling brush mechanism of claim 9.