Cleaning robot

Abstract

The utility model relates to the technical field of cleaning equipment, in particular to a cleaning robot which comprises a machine body and a rolling brush assembly, a mounting cavity is formed in the machine body, the rolling brush assembly comprises a rolling brush rotationally arranged in the mounting cavity, the rolling brush comprises a roller and a cutter arranged on the roller, and the cutter is configured to move in the axial direction of the roller to cut entanglements. The rolling brush further comprises a protecting cover arranged on the roller, the protecting cover is arranged on the outer side of the cutter in a covering mode, and a plurality of notches which are formed in the axial direction of the roller at intervals and used for entanglements to enter are formed in the protecting cover. A cleaning part extending in the axial direction of the roller is arranged in the mounting cavity, the fixed end of the cleaning part is connected to the inner wall of the mounting cavity, and the free end of the cleaning part interferes with the protective cover so as to clean the protective cover when the rolling brush rotates. The protective cover can be cleaned in the rotating process of the rolling brush, so that garbage such as entanglement chippings and dust remaining on the protective cover is swept off, more garbage is prevented from remaining on the protective cover, the difficulty of cleaning the rolling brush by a user is reduced, and the user experience is improved.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning equipment, and in particular to a cleaning robot. Background Art

[0002] As people's living standards improve, cleaning robots are becoming increasingly commonplace. A cleaning robot typically consists of a body, a roller brush assembly, a dust box, and a travel assembly mounted on the body. The roller brush assembly collects dust from the floor, the dust box stores the collected dust, and the travel assembly drives the body.

[0003] Among them, the roller brush of the roller brush assembly is easily entangled with hair and other entanglements due to its rotating drum-like motion during operation, which not only affects the cleaning effect, but also may jam the roller brush and cause the motor to stall, affecting the service life of the motor.

[0004] At present, in order to solve the problem of entangled objects, a cutting tool is provided on the roller brush to cut the entangled objects. However, the debris of the entangled objects after cutting tends to adhere to the roller brush, especially to the tool cover, making it difficult to clean the roller brush. Utility Model Content

[0005] In order to solve the above technical problems, the present application provides a cleaning robot to clean the debris of entanglements adhering to the roller brush, thereby reducing the difficulty of cleaning the roller brush.

[0006] In the first aspect, the present application provides a cleaning robot, a body and a roller brush assembly, wherein the body is provided with a mounting cavity, the roller brush assembly includes a roller brush rotatably arranged in the mounting cavity, the roller brush includes a roller and a tool provided on the roller, the tool is configured to move along the axial direction of the roller to cut the entanglement, the roller brush also includes a protective cover provided on the roller, the protective cover is provided on the outside of the tool, and the protective cover is provided with a plurality of notches arranged at intervals along the axial direction of the roller for the entry of entanglements; a cleaning member extending along the axial direction of the roller is provided in the mounting cavity, the fixed end of the cleaning member is connected to the inner wall of the mounting cavity, and the free end interferes with the protective cover so as to clean the protective cover when the roller brush rotates.

[0007] In some embodiments, the drum is provided with cleaning members for cleaning the surface to be cleaned at intervals along its circumference, and the cleaning members extend axially from the drum;

[0008] The free end of the cleaning member interferes with the sweeping member so as to clean the sweeping member when the roller brush rotates.

[0009] In some embodiments, the body is provided with a dust collection channel connected to the installation cavity and arranged obliquely in the vertical direction relative to the body;

[0010] The cleaning member is located above the roller and is arranged adjacent to the dust suction channel to push the swept garbage into the dust suction channel.

[0011] In some embodiments, the cleaning member is configured as a rubber strip and / or a wool strip.

[0012] In some embodiments, in the radial direction of the roller, the interference length between the cleaning member and the protective cover is 0.5 mm to 0.8 mm.

[0013] In some embodiments, in the radial direction of the drum, a preset gap is formed between the free end of the cleaning member and the cutter in a natural state, and the preset gap is greater than 0.1 mm.

[0014] In some embodiments, the cleaning member is configured as a brush.

[0015] In some embodiments, the protective cover is provided on the drum at one side of the cutter in the circumferential direction of the drum, and the protective cover is located at the front side of the cutter in the rotation direction of the drum.

[0016] In some embodiments, the cutter includes a fixed blade and a movable blade both extending along the axial direction of the drum, and the movable blade is movable relative to the fixed blade in the axial direction of the drum to cut the winding in the gap.

[0017] In some embodiments, the cutter comprises a movable blade having a plurality of serrated edges spaced apart along the axial direction of the drum, the serrated edges being configured to cut the windings within the notch.

[0018] The technical solution provided by the embodiments of the present application has the following advantages compared with the prior art:

[0019] 1. The cleaning robot is configured with a cleaning member extending along the axial direction of the roller in the mounting cavity. The fixed end of the cleaning member is connected to the inner wall of the mounting cavity, and the free end interferes with the protective cover, so that the protective cover can be cleaned during the rotation of the roller brush to sweep away debris, dust and other garbage remaining on the protective cover, thereby preventing a large amount of debris and dust from adhering to the protective cover. In addition, after sweeping away the debris and dust adhering to the protective cover, the risk of debris and dust being blocked in the gap between the protective cover and the cutter can be reduced, thereby reducing the difficulty for users to clean the roller brush and improving the user experience.

[0020] 2. Cleaning pieces for cleaning the surface to be cleaned are arranged at intervals along the circumference of the roller. The free ends of the cleaning pieces interfere with the cleaning pieces. In this way, the cleaning pieces can sweep away the entangled debris, dust and other garbage remaining on the cleaning pieces when the roller brush rotates, avoiding the adhesion of a lot of debris and dust on the cleaning pieces, improving the cleaning effect of the cleaning pieces on the surface to be cleaned, and reducing the difficulty for users to clean the roller brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1 This is a disassembled schematic diagram of the roller brush and body of the cleaning robot according to an embodiment of the present application;

[0024] Figure 2 for Figure 1 A schematic diagram of the structure of the roller brush;

[0025] Figure 3 for Figure 2 A partial enlarged schematic diagram of point A in the middle;

[0026] Figure 4 for Figure 1 A schematic cross-sectional view of the cleaning robot in a direction perpendicular to the axis of the drum;

[0027] Figure 5 for Figure 4 A partial enlarged schematic diagram of point B in the middle;

[0028] Figure 6 This is a schematic structural diagram of a roller brush according to some embodiments of the present application;

[0029] Figure 7 for Figure 6 A schematic cross-sectional view of the cleaning robot in a direction perpendicular to the axis of the drum;

[0030] Figure 8 To have Figure 6 A schematic cross-sectional view of the cleaning robot with a roller brush in a direction perpendicular to the axis of the roller;

[0031] Figure 9 for Figure 8 A partial enlarged schematic diagram;

[0032] Figure 10 is a schematic cross-sectional view of a drum according to some embodiments of the present application;

[0033] Figure 11 for Figure 10 A partial enlarged schematic diagram of point C in the middle;

[0034] Figure 12 is a schematic cross-sectional view of a drum according to some embodiments of the present application;

[0035] Figure 13 for Figure 12 A partial enlarged schematic diagram of point D in the middle;

[0036] Figure 14 for Figure 12 A schematic partial cross-sectional view of the roller brush in FIG. 1 at right angles to the axial direction of the roller.

[0037] Among them, 1, machine body; 11, installation cavity; 12, dust collection channel;

[0038] 2. Roller brush; 21. Roller; 22. Cutting tool; 221. Fixed blade; 222. Movable blade; 23. Protective cover; 231. Notch; 24. Wool strip; 25. Rubber strip;

[0039] 3. Cleaning parts. DETAILED DESCRIPTION

[0040] In order to more clearly understand the above-mentioned objectives, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0041] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application can also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present application, not all of the embodiments.

[0042] like Figures 1 to 5 As shown, an embodiment of the present application provides a cleaning robot, which includes a body 1 and a roller brush assembly. The body 1 is provided with a mounting cavity 11. The roller brush assembly includes a roller brush 2 rotatably arranged in the mounting cavity 11. The roller brush 2 includes a roller 21 and a tool 22 arranged on the roller 21. The tool 22 can move axially along the roller 21 to cut the entanglement. The roller brush 2 also includes a protective cover 23 arranged on the roller 21. The protective cover 23 is provided on the outside of the tool 22, and a plurality of notches 231 are provided on the protective cover 23, which are arranged at intervals along the axial direction of the roller 21 for the entry of entanglements.

[0043] A cleaning member 3 extending axially along the roller 21 is provided in the mounting cavity 11 . The fixed end of the cleaning member 3 is connected to the inner wall of the mounting cavity 11 , and the free end interferes with the protective cover 23 to clean the protective cover 23 when the roller brush 2 rotates.

[0044] It is understood that the free end of the cleaning member 3 interferes with the protective cover 23. Thus, when the protective cover 23 rotates with the drum 21, the cleaning member 3 contacts the protective cover 23 and cleans the protective cover 23. The interference between the cleaning member 3 and the protective cover 23 can be divided into two situations. One situation is that the cleaning member 3 contacts the protective cover 23 but does not extend into the notch 231. In this way, the surface of the protective cover 23 facing the cleaning member 3 can be cleaned.

[0045] Another method is that the cleaning member 3 partially extends into the notch 231 when in contact with the protective cover 23, so that the side wall of the notch 231 can also be cleaned. However, at this time, the cleaning member 3 needs to maintain a certain distance from the cutter 22 to prevent the cutter 22 from damaging the cleaning member 3 when cutting the winding material.

[0046] In this case, the cleaning member 3 can be a brush, and the bristles of the brush corresponding to the notch 231 can extend into the notch 231. Alternatively, the cleaning member 3 can be a scraper, in which case the scraper can be configured to have a first portion and a second portion having different lengths in the radial direction of the drum 21, the first portion and the second portion being spaced apart in the axial direction of the drum 21, the first portion being able to extend into the notch 231 to clean the sidewall of the notch 231, and the second portion being able to clean the partition between two adjacent notches 231.

[0047] It should be noted that the cleaning member 3 extending axially along the drum 21 refers to the cleaning member 3 extending entirely along the axial direction of the drum 21. However, the cleaning member 3 may be partially curved. For example, the cleaning member 3 may be a linear structure extending axially along the drum 21, or a structure extending axially along the drum 21 in a spiral shape around the drum 21, or a wavy structure extending along the axis of the drum 21. Of course, the cleaning member 3 may also have other shapes, as long as the cleaning member 3 extends entirely along the axial direction of the drum 21.

[0048] As can be understood, the free end of the cleaning member 3 interferes with the protective cover 23. Thus, when the roller brush 2 rotates, the cleaning member 3 can clean the protective cover 23 that rotates with the drum 21, thereby sweeping away debris, dust, and other debris remaining on the protective cover 23, thereby preventing a large amount of debris and dust from adhering to the protective cover 23. Furthermore, sweeping away the debris and dust adhering to the protective cover 23 can reduce the risk of debris and dust being stuck in the gap between the protective cover 23 and the blade 22, thereby reducing the difficulty for the user to clean the roller brush 2 and improving the user experience.

[0049] In some embodiments, the cleaning member 3 is configured as a brush.

[0050] It can be understood that the brush has bristles, and the number of bristles is large, so that the protective cover 23 can be cleaned multiple times by the bristles after the brush contacts the protective cover 23, and when there are gaps or ribs on the protective cover 23, the bristles can extend into the corners of the gaps or ribs for cleaning, which is beneficial to improve the cleaning effect of the protective cover 23.

[0051] Of course, in other embodiments, the cleaning member may also be a rubber strip that elastically deforms when in contact with the protective cover. Alternatively, the cleaning member may include both a rubber strip and a brush, which cooperate to further improve the cleaning effect of the protective cover.

[0052] In some embodiments, reference Figure 4 The body 1 is provided with a dust suction channel 12 connected to the mounting cavity 11 and tilted in the vertical direction relative to the body 1. The cleaning member 3 is located above the roller 21 and is adjacent to the dust suction channel 12 to push the swept garbage into the dust suction channel 12.

[0053] Among them, the dust suction channel 12 is connected to the dust collecting chamber of the dust box (not shown in the figure) on the body 1. When the cleaning robot is working, the dust box is vacuumed to generate negative pressure in the dust collecting chamber, so that the garbage on the surface to be cleaned can enter the dust collecting chamber of the dust box through the dust suction channel 12.

[0054] The above-mentioned roller brush 2 moves forward with the body 1 and transports the garbage on the surface to be cleaned into the dust suction channel 12 by rotating. If there is a lot of garbage left on the protective cover 23, the garbage on the protective cover 23 may remain on the protective cover 23, increasing the difficulty of cleaning the roller brush 2. It may also fall behind the body 1 during the rotation of the roller brush 2, causing secondary pollution. The cleaning of the protective cover 23 is achieved by the cleaning part 3, and the garbage is pushed into the dust suction channel 12, which can avoid the garbage remaining on the roller brush 2 or the secondary pollution of the surface to be cleaned.

[0055] It should be noted that the cleaning member 3 is arranged adjacent to the dust suction channel 12, which means that the cleaning member 3 can be arranged at the edge of the dust suction channel 12, or at a preset distance from the edge of the dust suction channel 12. The preset distance is set according to actual conditions so that the cleaning member 3 can push the swept garbage into the dust suction channel 12.

[0056] For example, referring to Figure 4 The dust collection channel 12 is located in front of the roller brush 2 in the front-to-back direction of the machine body 1, and in the up-down direction of the machine body 1, the height of the front end of the dust collection channel 12 in the front-to-back direction of the machine body 1 is higher than the height of the rear end in the front-to-back direction of the machine body 1. The roller brush 2 rotates counterclockwise to move the garbage on the surface to be cleaned along the roller brush 2. Figure 4The direction indicated by the dotted arrow is sent into the dust collection channel 12 and enters the dust box through the dust collection channel 12. In this process, the cleaning member 3 can push the garbage on the protective cover 23 to the front side of the roller brush 2 as the roller brush 2 rotates, so that the garbage is pushed into the dust collection channel 12. Figure 4 The X direction shown in FIG, the up and down direction of the body 1 is as shown in FIG. Figure 4 Y direction shown in .

[0057] In some embodiments, reference Figure 5 In the radial direction of the roller 21, the interference length between the cleaning member 3 and the protective cover 23 is 0.5mm-0.8mm.

[0058] The interference length between the cleaning member 3 and the protective cover 23 in the radial direction of the drum 21 is calculated based on the thickness of the protective cover 23. This interference length can be set to be less than the thickness of the protective cover 23 in the radial direction of the drum 21, thereby preventing the cleaning member 3 from extending beyond the protective cover 23 and being damaged by the cutter 22 when in contact with the protective cover 23. Of course, if there is a gap between the cleaning member 3 and the cutter 22 in the radial direction of the drum 21 in a natural state, the interference length between the cleaning member 3 and the protective cover 23 in the radial direction of the drum 21 may also exceed the thickness of the protective cover 23.

[0059] Furthermore, in the radial direction of the drum 21 , a preset gap is formed between the free end of the cleaning member 3 and the cutter 22 in a natural state, and the preset gap is greater than 0.1 mm.

[0060] It can be understood that the cleaning member 3 has an interference length with the protective cover 23 for cleaning the protective cover 23. If the interference length between the cleaning member 3 and the protective cover 23 is long, the cleaning member 3 will extend into the notch 231, and the cleaning member 3 will be cut and damaged by the cutter 22 when it contacts the cutter 22. Therefore, it is ensured that the free end of the cleaning member 3 has a preset gap with the cutter 22 in the radial direction of the roller 21 in a natural state. In this way, even if the cleaning member 3 extends into the notch 231 on the protective cover 23, it can avoid being cut and damaged by the cutter 22.

[0061] The natural state refers to the state of the cleaning member 3 when it is not deformed, that is, when it is not subjected to external force. At this time, the cleaning member 3 naturally extends under the action of its own gravity.

[0062] The above preset gap is greater than 0.1 mm, and a reasonable value can be selected according to actual needs, such as 0.15 mm, 0.2 mm, 0.25 mm, etc.

[0063] For example, in a specific implementation, the thickness of the protective cover 23 in the radial direction of the roller 21 is 0.7 mm. In the radial direction of the roller 21, the free end of the cleaning member 3 has a preset gap with the tool 22 in a natural state, and the preset gap is greater than 0.1 mm. At this time, the interference length between the cleaning member 3 and the protective cover 23 is preferably selected to be 0.8 mm to ensure that the cleaning member 3 and the protective cover 23 have sufficient interference length so that the cleaning member 3 can clean the garbage on the protective cover 23, avoid the interference length between the cleaning member 3 and the protective cover 23 being too short, resulting in poor cleaning effect of the cleaning member 3 on the protective cover 23, and avoid the interference length between the cleaning member 3 and the protective cover 23 being too long and causing contact with the tool 22 and damage.

[0064] Of course, the interference length between the cleaning member 3 and the protective cover 23 in the radial direction of the drum 21 can also be reasonably set to other values ​​such as 0.5 mm, 0.6 mm, 0.7 mm, etc. according to actual needs.

[0065] In some embodiments, cleaning members for cleaning the surface to be cleaned are provided at intervals along the circumference of the roller 21, and the cleaning members extend axially from the roller 21. The free ends of the cleaning members 3 interfere with the cleaning members to clean the cleaning members when the roller brush 2 rotates.

[0066] Understandably, the free end of the cleaning member 3 interferes with the sweeping member, so that the cleaning member 3 can sweep off the entangled debris, dust and other garbage remaining on the cleaning member when the roller brush 2 rotates, avoiding the adhesion of more debris and dust on the cleaning member, improving the cleaning effect of the cleaning member on the surface to be cleaned, and reducing the difficulty for the user to clean the roller brush 2.

[0067] For example, in a specific implementation, referring to Figures 6 to 9 The cleaning member is constructed of wool strips 24 and rubber strips 25 , that is, the cleaning member includes wool strips 24 and rubber strips 25 , and the wool strips 24 and rubber strips 25 are alternately arranged in the circumferential direction of the drum 21 .

[0068] The hair strip 24 is a brush, i.e., has bristles, and the rubber strip 25 is a flexible scraping strip that can be deformed when in contact with the surface to be cleaned.

[0069] It can be understood that the above-mentioned roller 21 is provided with a wool strip 24 and a rubber strip 25, which are both used to clean the garbage on the surface to be cleaned when the roller 21 rotates, so as to send the garbage into the dust suction channel 12 on the cleaning robot as the roller 21 rotates and finally collect it in the dust box of the cleaning robot.

[0070] Specifically, refer to Figure 6 and Figure 7The roller 21 is provided with two wool strips 24 and two rubber strips 25 . The two wool strips 24 are arranged opposite to each other on the roller 21 , and the two rubber strips 25 are arranged opposite to each other on the roller 21 . The cutter 22 is located between one of the wool strips 24 and one of the rubber strips 25 .

[0071] One rubber strip 25 and one wool strip 24 are arranged adjacent to each other, and another rubber strip 25 and another wool strip 24 are arranged adjacent to each other. The cutter 22 is located between one of the rubber strips 25 and a wool strip 24 that is farther from the rubber strip 25 in the circumferential direction of the drum 21. This increases the distance between the rubber strip 25 and the wool strip 24 in the circumferential direction of the drum 21, allowing the portion of the wound material between the rubber strip 25 and the wool strip 24 to enter the notch 231 in the protective cover 23 and be cut by the cutter 22. The arrangement of the rubber strips 25, wool strips 24, and cutter 22 can be selected according to actual needs and will not be described in detail here.

[0072] It should be noted that, in one case, the free end of the cleaning member 3 interferes with the wool strip 24 and also interferes with the rubber strip 25. Specifically, referring to Figure 8 and Figure 9 In the radial direction of the roller 21, the interference length between the cleaning member 3 and the wool strip 24 is 4.8 mm to 5.5 mm, preferably 5.5 mm, to ensure that the interference length between the cleaning member 3 and the wool strip 24 is sufficient to enable the cleaning member 3 to clean the garbage on the wool strip 24, to avoid the interference length between the cleaning member 3 and the wool strip 24 being too short, resulting in poor cleaning effect of the cleaning member 3 on the wool strip 24, and to avoid the interference length between the cleaning member 3 and the wool strip 24 being too long, thereby affecting the rotation of the roller brush 2.

[0073] Of course, the interference length between the cleaning member 3 and the wool strip 24 in the radial direction of the drum 21 can also be reasonably set to other values ​​such as 4.8 mm, 4.9 mm, 5.0 mm, 5.1 mm, 5.2 mm, 5.3 mm, 5.4 mm, etc. according to actual needs.

[0074] Furthermore, in the radial direction of the roller 21, the interference length between the cleaning member 3 and the rubber strip 25 is 1.3 mm to 2 mm, preferably 2 mm, to ensure that the interference length between the cleaning member 3 and the rubber strip 25 is sufficient to enable the cleaning member 3 to clean the garbage on the rubber strip 25, to avoid the interference length between the cleaning member 3 and the rubber strip being too short, thereby resulting in poor cleaning effect of the cleaning member 3 on the rubber strip 25, and to avoid the interference length between the cleaning member 3 and the rubber strip 25 being too long, thereby affecting the rotation of the roller brush 2.

[0075] Of course, the interference length between the cleaning member 3 and the rubber strip 25 in the radial direction of the drum can also be reasonably set to other values ​​such as 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, etc. according to actual needs.

[0076] It should be noted that, since the widths of the wool strips 24 and the rubber strips 25 are different in the radial direction of the drum 21, specifically, the width of the wool strips 24 is greater than the width of the rubber strips 25, the interference length between the cleaning member 3 and the rubber strips 25 in the radial direction of the drum 21 is relatively small, while the interference length between the cleaning member 3 and the wool strips 24 in the radial direction of the drum 21 is relatively large. If the interference length between the cleaning member 3 and the rubber strips 25 is too long, the interference length between the cleaning member 3 and the wool strips 24 will also increase, which will easily affect the rotation of the roller brush 2.

[0077] It should be noted that in this implementation, the above-mentioned cleaning member 3 can be selected as a brush. At this time, the bristles of the brush and the bristles on the strip 24 comb each other when they come into contact, which can improve the cleaning effect of the strip 24. At the same time, the bristles of the brush can also clean every part of the rubber strip 25 to better clean the rubber strip 25.

[0078] In another embodiment, the free end of the cleaning element interferes only with the wool strip. In this case, the widths of the wool strip and the rubber strip differ in the radial direction of the drum, specifically, the width of the wool strip is greater than the width of the rubber strip. In this case, the radial interference length between the cleaning element and the wool strip can be appropriately adjusted based on actual needs.

[0079] For example, in another specific implementation, the cleaning member may be configured as a wool strip. In other words, in this case, only the wool strip is provided on the drum, and the cleaning member and the wool strip interfere with each other. The length of the interference between the cleaning member and the wool strip in the radial direction of the drum can be set according to actual needs. Alternatively, the cleaning member may be configured as a rubber strip. The cleaning member and the rubber strip interfere with each other. The length of the interference between the cleaning member and the rubber strip in the radial direction of the drum can be set according to actual needs.

[0080] Further, refer to Figure 8 The body 1 is provided with a dust suction channel 12 connected to the mounting cavity 11 and tilted in the vertical direction relative to the body 1. The cleaning member 3 is located above the roller 21 and is adjacent to the dust suction channel 12 to push the swept garbage into the dust suction channel 12.

[0081] Among them, the dust suction channel 12 is connected to the dust collecting chamber of the dust box (not shown in the figure) on the body 1. When the cleaning robot is working, the dust box is vacuumed to generate negative pressure in the dust collecting chamber, so that the garbage on the surface to be cleaned can enter the dust collecting chamber of the dust box through the dust suction channel 12.

[0082] The above-mentioned roller brush 2 moves forward with the body 1 and transports the garbage on the surface to be cleaned into the dust suction channel 12 by rotating. If there is a lot of garbage left on the protective cover 23, the garbage on the protective cover 23 may remain on the protective cover 23, increasing the difficulty of cleaning the roller brush 2. It may also fall behind the body 1 during the rotation of the roller brush 2, causing secondary pollution. The cleaning of the protective cover 23 is achieved by the cleaning part 3, and the garbage is pushed into the dust suction channel 12, which can avoid the garbage remaining on the roller brush 2 or the secondary pollution of the surface to be cleaned.

[0083] It should be noted that the cleaning member 3 is arranged adjacent to the dust suction channel 12, which means that the cleaning member 3 can be arranged at the edge of the dust suction channel 12, or at a preset distance from the edge of the dust suction channel 12. The preset distance is set according to actual conditions so that the cleaning member 3 can push the swept garbage into the dust suction channel 12.

[0084] For example, referring to Figure 8 The dust collection channel 12 is located in front of the roller brush 2 in the front-to-back direction of the machine body 1, and in the up-down direction of the machine body 1, the height of the front end of the dust collection channel 12 in the front-to-back direction of the machine body 1 is higher than the height of the rear end in the front-to-back direction of the machine body 1. The roller brush 2 rotates counterclockwise to move the garbage on the surface to be cleaned along the roller brush 2. Figure 8 The direction indicated by the dotted arrow is sent into the dust collection channel 12 and enters the dust box through the dust collection channel 12. In this process, the cleaning member 3 can push the garbage on the protective cover 23 to the front side of the roller brush 2 as the roller brush 2 rotates, so that the garbage is pushed into the dust collection channel 12. Figure 8 The X direction shown in FIG, the up and down direction of the body 1 is as shown in FIG. Figure 8 Y direction shown in .

[0085] In some embodiments, reference Figure 10 and Figure 11 A protective cover 23 is provided on the drum 21 on one side of the cutter 22 in the circumferential direction of the drum 21 , and the protective cover 23 is located in front of the cutter 22 in the rotation direction of the drum 21 .

[0086] It is understood that the cutter 22 has the aforementioned protective cover 23 on one side of the drum 21 in the circumferential direction, and the protective cover 23 is located in front of the cutter 22 in the rotational direction of the drum 21. Thus, when the drum 21 rotates, the cleaning member 3 passes over the protective cover 23 before the cutter 22, thereby improving the cleaning effect of the cleaning member 3 on the protective cover 23. Assuming that the protective cover 23 is located in front of the cutter 22 in the rotational direction of the drum 21 when the drum 21 rotates forward, if the drum 21 rotates reversely, the cleaning member 3 will interfere with the protective cover 23, and the protective cover 23 will block the cleaning member 3. As the drum 21 rotates, the cleaning member 3 may deform due to the obstruction of the protective cover 23 and directly pass over the protective cover 23, thus preventing the cleaning of the protective cover 23.

[0087] Furthermore, after the cleaning member 3 cleans the protective cover 23, the cutter 22 is located behind the protective cover 23 in the direction of rotation of the drum 21. Since the protective cover 23 covers the outside of the cutter 22, contact between the cleaning member 3 and the cutter 22 is avoided. For example, the cleaning member 3 elastically deforms when in contact with the protective cover 23 and returns to its original shape after breaking away from the protective cover 23. If the cleaning member 3 passes over the cutter 22 first, it may be damaged by the cutter 22. However, by allowing the cleaning member 3 to pass over the protective cover 23 first, it can pass over the cutter 22 under the guidance of the protective cover 23, thereby avoiding damage by the cutter 22.

[0088] The length of the cleaning member 3 can be appropriately set according to actual needs. If it is too short, the cleaning effect on the protective cover 23 is poor. If it is too long, there is a risk of being damaged by the cutter 22 through the notch 231.

[0089] In some embodiments, reference Figures 12 to 14 The cutter 22 includes a fixed blade 221 and a movable blade 222 both extending axially along the drum 21 . The movable blade 222 can move relative to the fixed blade 221 in the axial direction of the drum 21 to cut the windings in the gap 231 .

[0090] It can be understood that the cutter 22 includes a movable blade 222 and a fixed blade 221 fixed relative to the drum 21 . The movable blade 222 is movable and cooperates with the fixed blade 221 to cut the winding material in the notch 231 of the protective cover 23 .

[0091] Among them, the fixed blade 221 includes a plurality of serrated blades arranged at intervals along the axial direction of the drum 21, and the movable blade 222 includes a plurality of serrated blades arranged at intervals along the axial direction of the drum 21. When the movable blade 222 is stationary relative to the fixed blade 221, the serrated blades of the fixed blade 221 and the serrated blades of the movable blade 222 fit together. At this time, the space between the two adjacent serrated blades of the fixed blade 221 corresponds to the notch 231 of the protective cover 23, allowing the entry of windings; the space between the two adjacent serrated blades of the movable blade 222 corresponds to the notch 231 of the protective cover 23, allowing the entry of windings; in this way, when the movable blade 222 moves in the axial direction of the drum 21, the windings in the notch 231 can be cut.

[0092] For example, in one specific implementation, the drum 21 comprises interconnected halves, which can be joined together using screws or glue. A fixed blade 221 is secured to one of the halves and extends beyond the edge of the half-cylinder. A movable blade 222 is connected to a transmission element (not shown) within the drum 21 and extends beyond the edge of the other half. The movement of the transmission element drives the movable blade 222 to reciprocate, thereby cutting the wound material.

[0093] The movable blade 222 is provided with a strip-shaped hole extending axially along the drum 21. A corresponding positioning post is protruded from the semi-cylinder body and passes through the strip-shaped hole. The positioning post and the strip-shaped hole cooperate to ensure the stability of the movable blade 222 during movement. Multiple strip-shaped holes and positioning posts can be provided, with multiple positioning posts arranged at intervals along the axial direction of the drum 21, and multiple strip-shaped holes arranged at intervals along the axial direction of the drum 21.

[0094] Furthermore, a guide member (not shown in the figure) is also provided in the roller 21. The guide member is used to guide the movement of the transmission member, and the guide member does not rotate with the roller 21. Specifically, a mating portion is convexly provided on the outer peripheral wall of the guide member, and the transmission member has a mounting hole and an annular slide groove provided on the hole wall of the mounting hole. Along the circumference of the mounting hole, the annular slide groove includes a first spiral segment and a second spiral segment connected in sequence. The spiral directions of the first spiral segment and the second spiral segment are opposite, and the connection points at the two ends of the two form a first turning portion and a second turning portion respectively. Along the axial direction of the mounting hole, the first turning portion and the second turning portion are separated by a first spacing, and the first spacing is greater than 0. The transmission member is sleeved on the outside of the guide member through the mounting hole, and the mating portion extends into the annular slide groove.

[0095] When the roller 21 rotates, the transmission member rotates relative to the guide member, and the matching portion on the guide member moves relative to the first spiral segment and the second spiral segment. Since the guide member is fixed, the matching portion will not move under the action of the first spiral segment or the second spiral segment. Instead, under the action of the matching portion, the transmission member is pushed to move back and forth along the axial direction of the mounting hole, thereby driving the movable blade 222 to move back and forth in the axial direction of the roller 21.

[0096] The transmission member comprises a first portion and a second portion that are detachably connected so that the matching portion of the guide member can be installed in the annular groove.

[0097] For example, in another specific implementation, the movable blade 222 can also be moved axially along the drum 21 using other structures or methods. For example, by utilizing the centrifugal force of the rotating drum 21, the two half-cylinders, when combined to form the drum 21, have an internal cavity. A centrifugal element (not shown) is disposed within the internal cavity, which uses centrifugal force to propel the movable blade 222. A stop block is also disposed within the internal cavity to limit the movement of the movable blade 222, as well as a resilient element to return the movable blade 222 to its original resting position after movement.

[0098] Furthermore, the internal cavity also includes a push block shaft fixedly connected to the drum 21, with the axial direction of the push block shaft being perpendicular to the axial direction of the drum 21. The movable blade 222 has a push portion and a support portion. The centrifugal element includes two symmetrical centrifugal push blocks, one end of which is rotatably connected to the push block shaft and the other end of which is capable of contacting the push portion of the movable blade 222. The reset elastic element includes a spring seat fixed to the internal cavity and a spring with one end connected to the spring seat and the other end connected to the support portion.

[0099] When the drum 21 is stationary, the serrated edges of the movable blade 222 and the fixed blade 221 are in contact. As the drum 21 rotates, the centrifugal force generated by the rotation of the drum 21 causes the two centrifugal pushers to separate. At this point, the centrifugal pushers come into contact with the pusher, pushing the movable blade 222 axially and compressing the spring. During this process, the serrated edges of the movable blade 222 cut through the windings trapped within the notch 231. However, while the drum 21 is rotating at high speed, the movable blade 222 remains in position. This means that it can only move to cut windings during the initial stages of the drum 21's rotation and when the drum 21 comes to a stop from high speed.

[0100] In some embodiments, the cutter comprises a movable blade having a plurality of serrated edges spaced apart along the axial direction of the drum, wherein the serrated edges are capable of cutting the windings in the notch.

[0101] It can be understood that at this time the protective cover acts as a fixed blade that cooperates with the blade, and the movable blade moves relative to the protective cover to cut the windings in the gap. In this way, when the movable fixed plate is stationary relative to the protective cover, the serrated tooth edge is located on the inner side of the partition between the two adjacent gaps. At this time, the space between the two adjacent serrated tooth edges is aligned with the gap of the protective cover, allowing the windings to enter, so that the windings can be cut when the movable blade moves.

[0102] The movement of the movable blade can be achieved by a structure for driving the movable blade to move in an embodiment in which the tool includes a fixed blade and a movable blade, which will not be described in detail here.

[0103] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0104] The foregoing description is intended only to provide specific embodiments of the present application, which will enable those skilled in the art to understand and implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments described herein, but is intended to be construed in the broadest manner consistent with the principles and novel features disclosed herein.

Claims

1. A cleaning robot, comprising a body and a roller brush assembly, wherein the body is provided with a mounting cavity, the roller brush assembly comprises a roller brush rotatably disposed in the mounting cavity, the roller brush comprises a roller and a cutter disposed on the roller, the cutter being configured to move axially along the roller to cut entangled materials, the roller brush further comprising a protective cover disposed on the roller, the protective cover being provided on the outside of the cutter, and the protective cover being provided with a plurality of notches spaced apart along the axial direction of the roller for entangled materials to enter; characterized in that: A cleaning member extending along the axial direction of the roller is provided in the installation cavity. The fixed end of the cleaning member is connected to the inner wall of the installation cavity, and the free end interferes with the protective cover so as to clean the protective cover when the roller brush rotates.

2. The cleaning robot according to claim 1, characterized in that: The drum is provided with cleaning members for cleaning the surface to be cleaned at intervals along its circumference, and the cleaning members extend axially from the drum; The free end of the cleaning member interferes with the sweeping member so as to clean the sweeping member when the roller brush rotates.

3. The cleaning robot according to claim 1 or 2, characterized in that: The body is provided with a dust collection channel connected to the installation cavity and arranged obliquely in the vertical direction relative to the body; The cleaning member is located above the roller and is arranged adjacent to the dust suction channel to push the swept garbage into the dust suction channel.

4. The cleaning robot according to claim 2, characterized in that: The cleaning piece is constructed as a rubber strip and / or a wool strip.

5. The cleaning robot according to claim 1, characterized in that: In the radial direction of the roller, the interference length between the cleaning member and the protective cover is 0.5 mm to 0.8 mm.

6. The cleaning robot according to claim 5, characterized in that: In the radial direction of the drum, a preset gap is formed between the free end of the cleaning member and the cutter in a natural state, and the preset gap is greater than 0.1 mm.

7. The cleaning robot according to claim 1, characterized in that: The cleaning element is configured as a brush.

8. The cleaning robot according to claim 1, characterized in that: The protective cover is provided on the drum at one side of the cutter in the circumferential direction of the drum, and the protective cover is located at the front side of the cutter in the rotation direction of the drum.

9. The cleaning robot according to claim 1, characterized in that: The cutter comprises a fixed blade and a movable blade both extending along the axial direction of the drum. The movable blade can move relative to the fixed blade in the axial direction of the drum to cut the winding in the notch.

10. The cleaning robot according to claim 1, characterized in that: The cutter includes a movable blade having a plurality of serrated edges spaced apart along the axial direction of the drum, wherein the serrated edges are configured to cut the windings in the notch.

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