Rolling brush assembly of cleaning robot and cleaning robot

Abstract

The utility model relates to cleaning equipment, and provides a cleaning robot and a rolling brush assembly thereof. The rolling brush is rotatably arranged in the rolling brush cavity; the comb teeth are arranged on the inner wall surface of the rolling brush cavity, and the comb teeth can tension thin and long sundries wound on the rolling brush; and the cutting blade can cut off the slender sundries tensioned between the rolling brush and the comb teeth. According to the technical scheme, the cutting blade can cut off hair tensioned by the comb teeth, winding of the hair on the rolling brush is reduced, particularly, the hair can be prevented from being continuously accumulated on the roller, the cleaning efficiency of equipment is improved, and the cleaning and maintenance frequency and difficulty of a user are reduced.

Description

Technical Field

[0001] This solution relates to the technical field of cleaning equipment, and in particular to a roller brush assembly for a cleaning robot, as well as a cleaning robot. Background Technology

[0002] To save manpower, a variety of cleaning equipment has emerged on the market, commonly including robot vacuums, robot mops, robot vacuums and mops, or handheld cleaning devices.

[0003] When cleaning floors or similar surfaces, in some cases, the hair picked up by the roller brush is difficult to remove and instead becomes tangled on the brush, preventing it from being sucked into the dustbin and affecting cleaning efficiency. In addition, it is also difficult for users to clean the hair tangled on the roller brush. When there is too much hair tangled on the roller brush, it will prevent the roller brush from cleaning up the debris on the ground and will also cause the roller brush drive motor to draw too much current, affecting the working performance of the equipment. Utility Model Content

[0004] One of the technical problems this solution aims to solve is that hair and other debris can easily get tangled in the roller brush and are difficult to clean.

[0005] To address the aforementioned technical problems, this embodiment provides a roller brush assembly for a cleaning robot, comprising:

[0006] The brush chamber;

[0007] A roller brush, which is rotatably disposed in the roller brush cavity;

[0008] The comb teeth are disposed on the inner wall surface of the roller brush cavity, and the comb teeth can pull up and tighten the thin and long debris wrapped around the roller brush;

[0009] A cutting blade capable of cutting off the elongated debris pulled between the roller brush and the comb teeth.

[0010] In some embodiments, the comb teeth are at least partially disposed on the C-shaped inner circumferential surface of the brush cavity that is radially aligned with the cutting blade.

[0011] In some embodiments, the cutting blade is disposed on the inner wall surface of the roller brush and / or the roller brush cavity.

[0012] In some embodiments, a brush cover disposed on the brush cavity is further included, and the cutting blade is disposed on the inner surface of the brush cover.

[0013] In some embodiments, the roller brush includes a first roller brush and a second roller brush that are axially spaced apart, and the cutting blade is disposed between the first roller brush and the second roller brush.

[0014] In some embodiments, a connecting bracket is further provided between the first roller brush and the second roller brush, and the cutting blade is disposed on the connecting bracket.

[0015] In some embodiments, the first roller brush includes a first roller and first bristles and a first support member disposed on the first roller along a first spiral line, the second roller brush includes a second roller and second bristles and a second support member disposed on the second roller along a second spiral line, the first spiral line and the second spiral line rotate in opposite directions, and the roller brush cavity is provided with an air outlet facing the cutting blade.

[0016] In some embodiments, the first bristles and the second bristles are inclined toward a position between the first roller and the second roller, respectively.

[0017] In some embodiments, the comb teeth include forward-rotating comb teeth and reverse-rotating comb teeth arranged circumferentially spaced along the inner wall of the roller brush cavity, and the roller brush is capable of rotating forward and in reverse.

[0018] On the other hand, embodiments of this solution also disclose a cleaning robot, which includes a roller brush assembly of the cleaning robot according to the above solution.

[0019] Through the above technical solution, the cutting blade can cut the hair that is pulled taut by the comb teeth, reduce the hair from getting tangled on the roller brush, and in particular, prevent the hair from accumulating on the roller continuously, thereby improving the cleaning efficiency of the equipment and reducing the frequency and difficulty of cleaning and maintenance for users. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this scheme or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this scheme. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the roller brush assembly of the cleaning robot disclosed in this embodiment of the solution;

[0022] Figure 2 This is a cross-sectional view of the roller brush assembly of the cleaning robot disclosed in this embodiment of the solution;

[0023] Figure 3 This is a schematic diagram of the structure of the roller brush cavity disclosed in this embodiment of the solution;

[0024] Figure 4 This is a schematic diagram of the connecting bracket and cutting blade disclosed in this embodiment of the solution;

[0025] Figure 5 This is a schematic diagram of the structure of the first roller brush disclosed in this embodiment of the solution;

[0026] Figure 6 This is a schematic diagram of the structure of the second roller brush disclosed in this embodiment.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1-Roller brush chamber, 2-First roller brush, 3-Second roller brush, 4-Connecting bracket, 5-Cutting blade, 6-Air outlet, 7-Roller brush cover, 8-Forward rotating comb teeth, 9-Reverse rotating comb teeth, 21-First roller, 22-First bristles, 23-First support, 31-Second roller, 32-Second bristles, 33-Second support. Detailed Implementation

[0029] The implementation of this solution will be further described in detail below with reference to the accompanying drawings and embodiments. The detailed description of the embodiments and the accompanying drawings below are used to illustrate the principle of this solution by way of example, but should not be used to limit the scope of this solution. This solution can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0030] These embodiments are provided to make the present solution thorough and complete, and to fully express the scope of the present solution to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions and values ​​described in these embodiments should be interpreted as exemplary only and not as limiting.

[0031] It should be noted that, in the description of this scheme, unless otherwise stated, "multiple" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, are only for the convenience of describing this scheme and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this scheme. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0032] Furthermore, the terms "first," "second," and similar terms used in this scheme do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable margin of error. "Parallel" is not strictly parallel, but within the allowable margin of error. Terms such as "including" or "contains" mean that the element preceding the term covers the element listed after it, and do not exclude the possibility of including other elements as well.

[0033] It should also be noted that, in the description of this solution, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this solution depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0034] All terms used in this protocol have the same meaning as understood by one of ordinary skill in the art, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless explicitly defined herein.

[0035] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0036] refer to Figures 1-6 As shown, this solution provides a roller brush assembly for a cleaning robot, which includes:

[0037] Brush chamber 1;

[0038] A roller brush, which is rotatably disposed in the roller brush cavity 1;

[0039] The comb teeth are disposed on the inner wall surface of the roller brush cavity 1, and the comb teeth can pull up the thin and long debris wrapped around the roller brush.

[0040] Cutting blade 5, which is capable of cutting the long, thin debris that is pulled between the roller brush and the comb teeth.

[0041] The roller brush chamber 1 can accommodate the roller brush, which can be partially exposed from the roller brush chamber 1 to clean the floor or similar surface.

[0042] The comb teeth are located on the inner wall surface of the roller brush cavity 1, particularly on the inner circumferential surface with the central axis of the roller brush as the axis. The comb teeth can comb away long and thin debris on the roller brush, allowing the airflow to carry away the long and thin debris. Long and thin debris can be hair or similar objects.

[0043] In some cases, some long and thin debris may become entangled on the roller brush and cannot be detached by the comb teeth. However, these long and thin debris will be pulled tight between the roller brush and the comb teeth by the comb teeth. The cutting blade 5 can cut off these pulled long and thin debris, thus reducing the amount of long and thin debris entangled on the roller brush. In particular, it can prevent long and thin debris from becoming entangled on the roller brush further, improving cleaning efficiency and reducing the frequency and difficulty of cleaning and maintenance for users.

[0044] Regarding the cutting blade 5, it can be set in a variety of different positions, as long as it can be positioned between the comb teeth and the roller brush.

[0045] In some embodiments, the cutting blade 5 is disposed on the inner wall surface of the roller brush and / or the roller brush cavity 1. The roller brush may include a roller and bristles and a support (sheet-like structure) disposed on the roller. The cutting blade 5 may be disposed in a position where no bristles and support are disposed. When hair or other objects wrapped around the bristles and support are pulled taut by the comb teeth, the hair can be cut by the cutting blade 5 when it approaches the cutting blade 5 and is carried away by the airflow. Alternatively, the cutting blade 5 may be disposed near the inner wall surface of the roller brush cavity 1. The cutting blade 5 may be close to the comb teeth and can also cut hair or other objects pulled taut between the comb teeth and the roller brush. The cutting blade 5 may be spaced apart from and aligned with the comb teeth in the circumferential direction.

[0046] In some embodiments, the roller brush assembly of the cleaning robot also includes a roller brush cover 7 disposed on the roller brush cavity 1, with the cutting blade 5 disposed on the inner surface of the roller brush cover 7. The roller brush cover 7 is disposed on the roller brush cavity 1 to restrict outward movement of the roller brush. The roller brush cover 7 has a cleaning inlet to allow partial exposure of the roller brush for easy cleaning of surfaces, etc. The cutting blade 5 may be disposed on the inner surface of the roller brush cover 7, and may be radially spaced from the roller brush. Long, thin debris trapped between the roller brush and the comb teeth can be cut by the cutting blade 5 as it approaches the roller brush cover 7. The cutting blade 5 disposed on the roller brush cover 7 may also be circumferentially spaced and aligned with the comb teeth.

[0047] In some embodiments, the roller brush includes a first roller brush 2 and a second roller brush 3 arranged axially spaced apart, with the cutting blade 5 disposed between the first roller brush 2 and the second roller brush 3. The first roller brush 2 and the second roller brush 3 are arranged axially spaced apart, and the cutting blade 5 is located between the two roller brushes. Hair can move between the two roller brushes and be cut by the cutting blade 5 under the tension of the comb teeth.

[0048] In some embodiments, the roller brush assembly of the cleaning robot further includes a connecting bracket 4 disposed between the first roller brush 2 and the second roller brush 3, with the cutting blade 5 disposed on the connecting bracket 4. The connecting bracket 4 can be used to connect the first roller brush 2 and the second roller brush 3, allowing the first roller brush 2 and the second roller brush 3 to rotate synchronously. The cutting blade 5 is disposed on the connecting bracket 4, wherein the cutting edge of the cutting blade 5 extends parallel to the central axis of the roller brush and is arranged radially outward, thereby cutting off long and thin debris pulled between the comb teeth and the roller brush. The distance between the cutting edge of the cutting blade 5 and the central axis of the roller brush is less than the maximum outer diameter of the roller brush, particularly less than the outer diameter of the first roller 21 and the second roller 31 described below, to avoid unnecessary contact between the cutting blade 5 and the surface to be cleaned. In addition, multiple cutting blades 5 can be provided at circumferential intervals, such as 2, 3, 4, etc.

[0049] In some embodiments, the comb teeth are at least partially disposed on the C-shaped inner circumferential surface of the roller brush cavity 1, which is radially aligned with the cutting blade 5. The entire inner circumferential surface of the roller brush cavity 1 is C-shaped, with a portion of it radially aligned with the cutting blade 5, i.e., a section of the C-shaped inner circumferential surface in the axial direction is radially aligned with the cutting blade 5, and the axial dimension of this section of the C-shaped inner circumferential surface is the same as the axial dimension of the cutting blade 5. The comb teeth may include multiple teeth with a certain length in the axial direction of the roller brush. The comb teeth may be at least partially located on the C-shaped inner circumferential surface aligned with the cutting blade 5, so that long and thin debris pulled between the comb teeth and the roller brush can be wrapped around the cutting blade 5 and cut off by the cutting blade 5. In other words, when the cutting blade 5 disposed on the support 4 rotates with the roller brush, the range swept by the cutting blade 5 in the radially outward direction is aligned with at least a portion of the comb teeth, thus cutting off long and thin debris pulled between the comb teeth and the roller.

[0050] The above describes the structure when the cutting blade 5 is located on the support 4. The same applies when the cutting blade 5 is directly set on the roller of the brush, that is, at least a portion of the comb teeth are located on the C-shaped inner circumferential surface of the brush cavity 1 that is radially aligned with the cutting blade 5. In addition, when the cutting blade 5 is located on the inner circumferential surface of the brush cavity 1 and the inner surface of the brush cover 7, at least a portion of the comb teeth are also provided on the C-shaped inner circumferential surface of the brush cavity 1 that is radially aligned with the cutting blade 5. However, in this structure, the cutting blade 5 cannot rotate with the brush.

[0051] In some embodiments, the first roller brush 2 includes a first roller 21 and first bristles 22 and a first support member 23 arranged along a first spiral on the first roller 21. The second roller brush 3 includes a second roller 31 and second bristles 32 and a second support member 33 arranged along a second spiral on the second roller 31. The first and second spirals rotate in opposite directions. The roller brush cavity 1 is provided with an air outlet 6 facing the cutting blade 5. The first roller brush 2 and the second roller brush 3 have similar structures, both including a roller and bristles and a support member arranged thereon. The bristles can clean the ground or similar surfaces, and the support member can support debris to move with the airflow and be discharged through the air outlet 6. In addition, the support member can keep hair and other debris away from the roller, preventing hair from directly wrapping around the roller. The bristles and support member of the two roller brushes rotate in opposite directions. When the two roller brushes rotate in the same direction, debris can be moved to a position between the two roller brushes. The air outlet 6 can create a negative pressure at the position between the two roller brushes, causing hair and other debris to move to the position between the two roller brushes. The cutting blade 5 and the nearby comb teeth located between the two roller brushes can cut the hair wrapped around the roller brushes. The airflow flowing outward at the air outlet can immediately carry away the hair cut by the cutting blade 5, preventing the hair from getting tangled again.

[0052] The first support member 23 and the second support member 33 can be sheet-like structures that are elastic and deformable, and can be made of rubber or other elastic materials. The bristles can be larger than the radial dimension of the support members to facilitate contact with the ground or similar surfaces for cleaning.

[0053] In some embodiments, the first bristles 22 and the second bristles 32 are inclined toward a position between the first roller 21 and the second roller 31, respectively. (See reference...) Figure 1 , Figure 5 and Figure 6 As shown, the first bristle 22 is inclined towards the middle position between the first roller 21 and the second roller 31, and the second bristle 32 is also inclined towards the middle position between the first roller 21 and the second roller 31. When the bristles come into contact with the ground or a similar surface, they can elastically deform. When they return to their original shape, because they are inclined towards the middle position, the debris in contact with the bristles can move towards the center. Therefore, as the rollers rotate in the forward direction, the bristles can cause the debris to move from both sides towards the center and eventually be discharged from the air outlet 6.

[0054] In some embodiments, the comb teeth include forward-rotating comb teeth 8 and reverse-rotating comb teeth 9 arranged circumferentially spaced along the inner wall of the roller brush cavity 1, and the roller brush can rotate in both directions. When the roller brush rotates forward, the forward-rotating comb teeth 8 can comb away most of the hair on the roller brush, while the reverse-rotating comb teeth 9 basically do not comb away any hair. When the roller brush rotates in reverse, the reverse-rotating comb teeth 9 can comb away most of the hair on the roller brush, while the forward-rotating comb teeth 8 basically do not comb away any hair. Therefore, in some cases, the hair entanglement on the roller brush is quite complex, allowing the two roller brushes to repeatedly rotate in both directions to comb the hair on the roller brush in both directions, thereby allowing more hair to be combed away from the roller brush. In particular, it can also tighten the hair that is difficult to comb away by the comb teeth while entangled on the roller brush, and cut the tightened hair by the cutting blade 5. For more information on the forward-rotating comb teeth 8 and the reverse-rotating comb teeth 9, refer to [reference needed]. Figure 2 The direction of the forward-rotating comb teeth 8 is clockwise, and the direction of the reverse-rotating comb teeth 9 is counterclockwise. That is, the directions of the forward-rotating comb teeth 8 and the reverse-rotating comb teeth 9 are opposite in the circumferential direction, so that the hair on them can be combed off when the roller brush rotates forward and reverse, respectively.

[0055] On the other hand, this solution also provides a cleaning robot, which includes the roller brush assembly of the cleaning robot described above. The cleaning robot may include a housing and multiple mechanisms disposed within the housing, such as a drive mechanism, a walking mechanism, etc., wherein the roller brush assembly can clean surfaces such as the ground.

[0056] The various embodiments of this solution have now been described in detail. To avoid obscuring the concept of this solution, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0057] Although specific embodiments of this solution have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this solution. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this solution. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way.

Claims

1. A rolling brush assembly of a cleaning robot, characterized in that, Comprising: a rolling brush cavity (1); a rolling brush rotatably arranged in the rolling brush cavity (1); a comb tooth arranged on an inner wall surface of the rolling brush cavity (1), the comb tooth capable of tensioning an elongated debris wound on the rolling brush; a cutting blade (5) capable of cutting the elongated debris tensioned between the rolling brush and the comb tooth.

2. The rolling brush assembly of the cleaning robot according to claim 1, wherein, The comb tooth is at least partially arranged on a C-shaped inner peripheral surface of the rolling brush cavity (1) radially aligned with the cutting blade (5). 3.The rolling brush assembly of the cleaning robot according to claim 1 or 2, characterized in that, The cutting blade (5) is arranged on an inner wall surface of the rolling brush and / or the rolling brush cavity (1). 4.The cleaning robot's roller brush assembly of claim 1 or 2, wherein, Further comprising a rolling brush cover (7) arranged on the rolling brush cavity (1), the cutting blade (5) being arranged on an inner surface of the rolling brush cover (7). 5.The cleaning robot's roller brush assembly of claim 1 or 2, wherein, The rolling brush comprises a first rolling brush (2) and a second rolling brush (3) arranged axially spaced apart, the cutting blade (5) being arranged between the first rolling brush (2) and the second rolling brush (3). 6.The cleaning robot's roller brush assembly of claim 5, wherein, Further comprising a connecting bracket (4) arranged between the first rolling brush (2) and the second rolling brush (3), the cutting blade (5) being arranged on the connecting bracket (4).

7. The rolling brush assembly of the cleaning robot according to claim 6, wherein, The first rolling brush (2) comprises a first roller (21) and a first brush hair (22) and a first support (23) arranged on the first roller (21) along a first helical line, the second rolling brush (3) comprises a second roller (31) and a second brush hair (32) and a second support (33) arranged on the second roller (31) along a second helical line, the first helical line and the second helical line being opposite in rotation direction, the rolling brush cavity (1) being provided with an air outlet (6) towards the cutting blade (5). 8.The cleaning robot of claim 7, wherein, The first brush hair (22) and the second brush hair (32) are respectively inclined towards a position between the first roller (21) and the second roller (31). 9.The cleaning robot of claim 1 or 2, wherein, The comb tooth comprises a forward rotation comb tooth (8) and a reverse rotation comb tooth (9) arranged circumferentially spaced apart on the inner wall of the rolling brush cavity (1), the rolling brush being capable of forward rotation and reverse rotation.

10. A cleaning robot, characterized in that, A rolling brush assembly of a cleaning robot according to any one of claims 1-9.

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