Cleaning device

Abstract

The utility model relates to cleaning equipment which comprises a shell, a rolling brush clamping cover, a rolling brush assembly and a comb tooth assembly. A rolling brush cavity is formed in the shell; the rolling brush clamping cover and the rolling brush cavity jointly define a containing space; the rolling brush assembly is installed in the containing space and is configured to rotate relative to the shell so as to clean the working face. The comb tooth assembly is constructed to be detachably installed in the rolling brush cavity, the comb tooth assembly comprises a first limiting end and a second limiting end, the first limiting end is constructed to be limited through a first limiting part arranged in the rolling brush cavity, and the second limiting end is constructed to be limited through the rolling brush clamping cover. The comb tooth assembly is detachably installed in the rolling brush cavity, so that a user can easily detach the comb tooth assembly for cleaning, the comb tooth assembly can be smoothly installed in the rolling brush cavity after cleaning, the comb tooth assembly can continuously and normally achieve the combing function, and the use experience of the user is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of cleaning technology, and in particular to a cleaning device. Background Art

[0002] With economic development and rising living standards, people's expectations for environmental hygiene are also increasing. To save manpower, a wide variety of cleaning devices have emerged on the market, including robot vacuums, mopping robots, sweeper-and-mop robots, and handheld cleaning devices. When cleaning floors or carpets, hair can easily become entangled in the brush rollers. If these hairs are left entangled in the brush rollers for extended periods, their cleaning performance will decline and they can also damage the brush and motor.

[0003] In the prior art, a comb structure can be provided to comb the hair entangled on the roller brush to facilitate hair untangling. However, after a period of use, the hair easily gets tangled on the comb teeth, making it difficult for the user to clean the comb teeth, thereby rendering the comb teeth inoperative and providing a poor user experience. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the present disclosure provides a cleaning device.

[0005] According to a first aspect of the present disclosure, there is provided a cleaning device comprising:

[0006] A housing, wherein a roller brush cavity is provided on the housing;

[0007] A roller brush card cover, wherein the roller brush card cover is configured to enclose a receiving space together with the roller brush cavity;

[0008] a roller brush assembly, the roller brush assembly being installed in the accommodating space and being configured to rotate relative to the housing to clean the working surface;

[0009] The comb tooth assembly is constructed to be detachably installed in the roller brush cavity, and the comb tooth assembly includes a first limiting end and a second limiting end. The first limiting end is constructed to be limited by a first limiting portion set in the roller brush cavity, and the second limiting end is constructed to be limited by the roller brush card cover.

[0010] In one embodiment of the present disclosure, the two sides of the roller brush chamber in the circumferential direction are respectively recorded as the first side and the second side; a guide groove is provided on the inner wall of the roller brush chamber, and the comb tooth assembly is constructed to slide along the first side of the guide groove until the first limit end cooperates with the first limit portion located on the second side of the guide groove.

[0011] In one embodiment of the present disclosure, both sides of the guide groove are constructed to have step surfaces, and the opposite side edges of the comb assembly are constructed to be covering parts, and the covering parts are constructed to adapt to the step surfaces and cover the step surfaces.

[0012] In one embodiment of the present disclosure, the first limiting end includes a first limiting buckle arranged on opposite sides of the comb tooth assembly, and the first limiting portion includes a first limiting groove connected to the guide groove; the first limiting buckle is constructed to be able to slide from the guide groove to and be clamped in the first limiting groove.

[0013] In one embodiment of the present disclosure, the second limiting end includes an abutment surface arranged adjacent to the first side of the comb tooth assembly, and the roller brush card cover is provided with a second limiting portion, and the second limiting portion includes a mating portion arranged on the roller brush card cover; the roller brush card cover is constructed so that after being installed on the shell, the mating portion cooperates with the abutment surface to prevent the comb tooth assembly from moving along the rotation direction of the roller brush assembly.

[0014] In one embodiment of the present disclosure, an operating portion is provided on the first side of the comb tooth assembly, and the operating portion is constructed to extend outward from the first side of the comb tooth assembly; a notch is provided on the first side edge of the roller brush cavity, and the operating portion is constructed to fit into the notch, and the outer side surface of the operating portion is exposed to the outside of the roller brush cavity.

[0015] In one embodiment of the present disclosure, the roller brush card cover is constructed to cooperate with the edge of the operating portion after being installed on the housing to prevent the comb tooth assembly from moving along the rotation direction of the roller brush assembly.

[0016] In one embodiment of the present disclosure, a third limiting end is provided on the comb tooth assembly, and a third limiting portion is provided in the roller brush chamber. The third limiting end is constructed to cooperate with the third limiting portion to pre-position the comb tooth assembly.

[0017] In one embodiment of the present disclosure, the third limiting end is arranged at a position on the comb tooth assembly adjacent to its first side, and one of the third limiting end and the third limiting portion is a groove, and the other is a buckle; after the comb tooth assembly is installed in place, the buckle is constructed to be clamped in the groove.

[0018] In one embodiment of the present disclosure, the comb tooth assembly includes a mounting plate, which is constructed to adapt to the contour of the roller brush chamber; the comb tooth assembly also includes a comb tooth portion located on the second side of the mounting plate, and the edge of the second side of the mounting plate is flush with the edge of the second side of the roller brush chamber.

[0019] One beneficial effect of the present disclosure is that it provides a detachable structure for a comb tooth assembly. The comb tooth assembly is detachably installed in the roller brush cavity, so that the user can easily remove the comb tooth assembly for cleaning, and can smoothly install it back into the roller brush cavity after cleaning. The cleaning device picks up dust and hair on the working surface through the roller brush assembly, and combs and untangles the hair on the roller brush assembly through the comb tooth assembly, thereby minimizing or avoiding the problem of hair entangled in the roller brush assembly. The user no longer needs to manually clean the roller brush assembly, which improves the user experience. After using it for a period of time, the user can easily remove the comb tooth assembly for cleaning, thereby ensuring that the comb tooth assembly can continue to perform the combing function normally, which improves the user experience.

[0020] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0022] Figure 1 is a bottom view of the cleaning device of the present disclosure;

[0023] Figure 2 is an exploded view of the structure of the cleaning device disclosed herein;

[0024] Figure 3 is a bottom view of the cleaning device of the present disclosure with the roller brush assembly hidden;

[0025] Figure 4 is a cross-sectional view of the cleaning apparatus of the present disclosure;

[0026] Figure 5 It is a structural schematic diagram of the roller brush assembly and roller brush card cover disclosed in the present invention;

[0027] Figure 6 is a schematic structural diagram of the roller brush assembly disclosed herein;

[0028] Figure 7 This is a structural schematic diagram of the roller brush assembly of the present invention from another angle;

[0029] Figure 8 is a schematic structural diagram of the comb tooth assembly disclosed herein;

[0030] Figure 9 yes Figure 8 A partial enlarged view of the middle comb teeth;

[0031] Figure 10 This is a schematic structural diagram of the comb tooth assembly disclosed herein from another angle;

[0032] Figure 11 is a schematic diagram showing the relationship between two adjacent comb teeth of the present invention;

[0033] Figure 12 is a partial cross-sectional view of the cleaning apparatus disclosed herein;

[0034] Figure 13 It is a structural diagram of the roller brush card cover disclosed in the present invention;

[0035] Figure 14 It is an exploded view of a portion of the structure of the cleaning device disclosed herein;

[0036] Figure 15 is an exploded view of the comb assembly and housing of the present disclosure;

[0037] Figure 16 yes Figure 15 A partial enlarged view of the middle O part;

[0038] Figure 17 It is a structural schematic diagram of the comb assembly and housing disclosed in the present invention;

[0039] Figure 18 yes Figure 17 A partial enlarged view of the middle P part;

[0040] Figure 19 It is an exploded view of the roller brush cover and shell of the present invention.

[0041] Figures 1 to 19 The one-to-one correspondence between the component names and the reference numerals is as follows:

[0042] 1. Shell; 11. Roller brush chamber; 113. First limiting groove; 114. Guide groove; 115. Step surface; 116. Notch; 117. Groove; 12. Dust suction port; 13. Roller brush card cover; 131. Blocking portion; 134. Fitting portion; 135. Protrusion; 2. Roller brush assembly; 21. Bristle element; 211. First bristles; 212. Second bristles; 22. Support member; 221. Recessed area; 23. Roller brush body; 3. Drive assembly; 4. Comb tooth assembly; 40. Mounting plate; 41. First tooth portion; 42. Second tooth portion; 43. First end; 44. Second end; 45. First limiting buckle; 46. Abutment surface; 47. Covering portion; 48. Operating portion; 49. Buckle. DETAILED DESCRIPTION

[0043] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure.

[0044] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0045] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0046] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0047] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0048] In this article, "first", "second", etc. are only used to distinguish each other, and do not indicate the importance and order, or the prerequisite for each other's existence.

[0049] In this document, “equal”, “same”, etc. are not strictly limited in a mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use.

[0050] In this article, "connection" encompasses all methods of connection, including direct and indirect connections, and does not require physical contact between the connected parts. This includes various specific connection methods, including snap-fit ​​connections, screw connections, connections without fixtures, welding, riveting, and integrated molding. When it comes to component fit, this includes various types of fits, including clearance fit, transition fit, interference fit, and variable clearance.

[0051] The present disclosure provides a cleaning device, which may be a handheld cleaning device, such as a handheld cleaning machine, a handheld vacuum cleaner, a handheld floor scrubber, or other handheld cleaning devices well known to those skilled in the art. It may also be a sweeping robot, a mopping robot, a sweeping and mopping robot, or the like, which is a self-propelled cleaning device used to clean work surfaces that need to be cleaned, such as floors, sofas, and carpets. In an embodiment of the cleaning device of the present disclosure that is a handheld floor scrubber, when the user uses the floor scrubber for cleaning, the user can push the floor scrubber to move on the ground, and use the floor brush assembly of the floor scrubber to clean the work surface. In an embodiment of the cleaning device of the present disclosure that is a self-propelled cleaning device, the robot moves on the work surface according to a planned path or based on information detected by various sensors, and completes the cleaning of the work surface.

[0052] refer to Figure 1In one embodiment of the present disclosure, the cleaning device is a cleaning robot, comprising: a housing 1, a roller brush assembly 2, a roller brush card cover 13, and a comb assembly 4. The housing 1 is the basic carrier of the cleaning device, used to carry other components of the cleaning device. The roller brush assembly 2 can be installed on the housing 1, for example, it can be installed at the bottom or front end of the housing 1. A walking mechanism can be provided at the bottom of the housing 1 to drive the cleaning device to walk on the work surface. At this time, the housing 1 drives the roller brush assembly 2 to move on the work plane, thereby cleaning the work surface.

[0053] like Figure 2 As shown, a roller brush chamber 11 and a dust suction port 12 connected to the roller brush chamber 11 are provided on the shell 1. The roller brush chamber 11 can be opened on the bottom surface of the shell 1, or can be opened at the front end of the shell 1, which depends on the arrangement position of other components inside the sweeping robot, and the present disclosure does not limit this. The roller brush chamber 11 is constructed into a shape that is compatible with the roller brush assembly 2, and the roller brush assembly 2 is installed in the roller brush chamber 11 of the shell 1. The roller brush chamber 11 can form a semi-enclosed structure, which has an opening facing the working surface, and at least part of the roller brush assembly 2 is exposed outside the roller brush chamber 11 from the opening of the roller brush chamber 11 to contact the working surface.

[0054] The roller brush assembly 2 is constructed to rotate relative to the housing 1 to clean the working surface. Specifically, the cleaning device may include a drive assembly 3 disposed in the housing 1. The drive assembly 3 may be a motor or a transmission mechanism driven by a motor. The drive assembly 3 can drive the roller brush assembly 2 to rotate around its own central axis, so that the roller brush assembly 2 can clean working surfaces such as floors, carpets, and sofas. In a specific embodiment of the present disclosure, the rotational speed of the roller brush assembly 2 can be 1100-1500 rpm, and the high-speed rotating roller brush assembly 2 has an efficient and powerful cleaning effect. In other embodiments, the roller brush assembly 2 can also be controlled to work at other rotational speeds, and those skilled in the art can make adjustments according to specific needs.

[0055] The dust suction port 12 can be, for example, an opening on the inner wall of the roller brush chamber 11. In this embodiment, the end surface of the dust suction port 12 is the inner wall of the roller brush chamber 11. The dust suction port 12 is connected to the dust collection box through a sewage suction channel, so that foreign matter can enter the dust collection box through the dust suction port 12. Figure 3 The dust suction port 12 can be located at the front or rear side of the roller brush assembly 2, or directly above the roller brush assembly 2. In a specific embodiment, the bottom of the dust suction port 12 is configured to be located at a position higher than the rotation axis of the roller brush assembly 2. The dust suction port 12 can be configured to extend along the axial direction of the roller brush assembly 2.

[0056] In one embodiment of the present disclosure, the length of the dust suction port 12 along the axis of the roller brush assembly 2 is constructed to be smaller than the length of the roller brush assembly 2 along its axis. For example, the ratio of the length of the dust suction port 12 to the length of the roller brush assembly 2 ranges from 30% to 80%. For cleaning robots, due to the limitations of structural compactness, their suction power is often smaller than that of handheld vacuum cleaners, floor scrubbers, and other handheld vacuuming devices. Setting the ratio range of the dust suction port 12 to the length of the roller brush assembly 2 below the upper limit can ensure that the suction force generated by the cleaning robot's negative pressure blower is not excessively dispersed, thereby ensuring the suction effect of large particles of dirt and foreign matter such as hair. Setting the ratio range of the dust suction port 12 to the length of the roller brush assembly 2 above the lower limit can increase the coverage range of the dust suction port 12 and improve cleaning efficiency. When the roller brush assembly 2 rotates across the work surface, it can roll up dust and garbage and bring them to the dust suction range of the dust suction port 12 for pickup to achieve the cleaning purpose.

[0057] Specifically, the cleaning device may be provided with a negative pressure device for generating a suction airflow, under which dust and garbage drawn in from the suction port 12 are collected in a dust collection box within the housing 1. Dust carried by the roller brush assembly 2 can be promptly picked up by the suction port 12, thereby improving the cleaning effect on dust and dirt on the ground. However, when hair dirt is present on the ground, since the length of the hair is often much greater than the diameter of the roller brush assembly 2, the hair tends to become entangled in the roller brush assembly 2 when the roller brush assembly 2 rotates at high speed.

[0058] refer to Figure 6, the rotation axis direction of the roller brush assembly 2 is defined as the X-axis, and the roller brush assembly 2 includes a roller brush body 23 extending along the X-axis direction, and a cleaning component arranged on the roller brush body 23. The roller brush body 23 is rotatably connected in the roller brush cavity 11 of the shell 1, and its rotation axis is constructed to be parallel to the working surface. As an optional embodiment, the rotation axis of the roller brush body 23 may also be non-parallel to the working surface. The cleaning component may include a bristle element 21. Specifically, the bristle element 21 is distributed on the roller brush body 23, and the free end of the bristle element 21 is constructed to be able to contact or interference fit with the working surface, so that the bristle element 21 can pick up garbage on the working surface during rotation, such as debris, hair, dust, etc. The bristle element 21 may include a plurality of bristle bundles, and the bristle bundles may be connected to the surface of the roller brush body 23 by planting, sewing, bonding or other methods known to those skilled in the art. In another embodiment of the present disclosure, the bristle elements may also be bristle filaments distributed on the roller brush body 23. These bristle filaments are not distributed in the form of bundles, but are densely distributed on the surface of the roller brush body 23, or arranged on the surface of the roller brush body 23 according to a preset shape and extension direction. During the cleaning process of the roller brush assembly 2, hair, string, and other slender foreign matter picked up by the bristle element 21 are easily entangled with the surface of the roller brush body 23 during the rotational movement, which will reduce the cleaning ability of the roller brush assembly 2 and easily damage the roller brush assembly 2 and the drive assembly 3.

[0059] To solve the above problems, Figure 7 As shown, the bristle element 21 is configured to be tilted toward the suction port 12 in the X-axis direction, so that the hair wrapped around the bristle element 21 can gather toward the suction port 12 as the roller brush assembly 2 rotates. On the one hand, the hair wrapped around the bristle element 21 is affected by the suction force of the suction port 12 and tends to move toward the position of the suction port 12; on the other hand, the hair wrapped around the bristle element 21 is affected by centrifugal force as the bristle element 21 rotates. The tilt of the bristle element 21 toward the suction port 12 can better facilitate the movement of hair toward the suction port. Since the bristle element 21 is inclined toward the dust suction port 12, the hair entangled in the bristle element 21 will be subjected to the component force toward the dust suction port 12 during the rotation process, and under the action of this component force, the hair moves toward the dust suction port 12; the bristle element 21 inclined toward the dust suction port 12 provides a movement path for the hair, and the movement path is toward the dust suction port 12. Under the action of the suction force generated at the dust suction port 12, the hair moves toward the dust suction port 12.

[0060] In one embodiment of the present disclosure, Figure 4As shown, the dust suction port 12 is provided on the housing 1 in the middle area corresponding to the roller brush body 23. The bristle element 21 includes first bristles 211 and second bristles 212. The first bristles 211 and the second bristles 212 are configured to extend from both ends of the roller brush body 23 to the middle area of ​​the roller brush body 23, and are configured to be inclined toward the dust suction port 12. Figure 7 In the viewing direction, the first bristles 211 can be the bristles arranged on the left side of the roller brush body 23, and the second bristles 212 can be the bristles arranged on the right side of the roller brush body 23. The first bristles 211 and the second bristles 212 are constructed to be symmetrically arranged along the center line of the roller brush body 23, and are respectively inclined toward the middle suction port 12.

[0061] The hair wrapped around the left side of the roller brush assembly 2 is continuously subjected to a rightward force as it rotates with the first bristles 211, and moves rightward to a position adjacent to the intersection or boundary between the first and second bristles 211, 212, so that it can be picked up by the central suction port 12. The hair wrapped around the right side of the roller brush assembly 2 is continuously subjected to a leftward force as it rotates with the second bristles 212, and moves leftward to a position adjacent to the intersection or boundary between the first and second bristles 211, 212, so that it can be picked up by the central suction port 12. This embodiment allows the hair wrapped around the roller brush assembly 2 to be guided toward the central suction port 12 by the first and second bristles 211, 212. Furthermore, because the center of the suction port 12 has a greater suction force, the hair wrapped around the roller brush assembly 2 is more easily picked up when it moves closer to the suction port 12.

[0062] Furthermore, during the rotation of the bristle element 21, the bristle bundle will deform each time it contacts the working surface and rebound after sweeping across the working surface. Since each bristle bundle on the bristle element 21 is inclined toward the suction port 12, and the hair is usually entangled between two adjacent bristle bundles, when the bristle bundle is deformed, the hair entangled thereon can rub between the working surface and the bristle element 21 and be subjected to a friction component toward the suction port 12. When the bristle bundle rebounds, the hair can pass over the currently entangled bristle bundle under the action of the elastic force and move toward the suction port 12, and then move to the next set of bristle bundle gaps. Under the combined effect of the above multiple factors, the use of a bristle element 21 arranged toward the suction port 12 can cause the hair entangled on the bristle element 21 to gather toward the suction port 12.

[0063] By tilting the bristle element 21 on the roller brush assembly 2 toward the suction port, the present invention allows hair and other elongated objects entangled with the roller brush assembly 2 to gather toward the suction port 12 as the bristle element 21 rotates, ultimately being picked up by the suction port 12. Hair that moves axially along the roller brush assembly 2 is more easily dislodged, preventing foreign matter such as hair from becoming entangled in the roller brush assembly 2. Furthermore, hair and other foreign matter can move along the roller brush assembly 2 toward the suction port 12, thereby being dislodged from the roller brush assembly 2 under the strong suction force provided by the suction port 12. It is understood that as long as the hair is not entangled in the roller brush assembly 2, it has a certain amount of room to move, allowing it to move axially as the roller brush assembly 2 rotates. Therefore, hair and other foreign matter entangled with the roller brush assembly 2 will ultimately be picked up by the suction port 12 during this movement. The cleaning device disclosed herein can minimize or avoid problems such as entanglement of hair and the like, and users no longer need to perform cleaning work manually, thereby improving the user experience. In addition, it can also prevent problems such as reduced cleaning ability and motor jamming and damage caused by hair entanglement in the roller brush assembly 2, thereby extending the service life of the cleaning device.

[0064] To prevent foreign matter such as hair from becoming entangled in the roller brush body 23, the cleaning component may further include a support member 22, which is used to keep debris, hair, string, and other foreign matter away from the roller brush body 23. Specifically, the support member 22 is disposed on the roller brush body 23 and is configured to be distributed along the extension direction of the bristle elements 21. That is, the extension direction of the support member 22 on the roller brush body 23 is consistent with the extension direction of the bristle elements 21 on the roller brush body 23, and both extend linearly in the axial direction of the roller brush body 23 or are spirally disposed on the roller brush body 23. The support member 22 may be a rubber strip, such as a rubber strip, silicone strip, or plastic strip with a certain degree of deformability.

[0065] Multiple support members 22 can be provided, distributed along the circumference of the roller brush body 23. This allows foreign matter, such as hair, to be fully supported along the circumference. Hair can wrap around the support members 22 with a larger diameter, rather than becoming entangled in the roller brush body 23. This reduces the number of turns hair and other foreign matter can make, making it less likely to become entangled and easier to remove from the roller brush assembly 2. The support members 22 can be assembled on the roller brush body 23 via a slide groove, or secured to the roller brush body 23 by injection molding, gluing, or other methods.

[0066] In one embodiment of the present disclosure, the support member 22 is provided with a recessed area 221 concave toward the surface of the roller brush body 23 at a position corresponding to the suction port 12. When hair wrapped around the support member 22 rotates with the roller brush assembly 2, the hair is gathered toward the center under the combined action of the bristle element 21 and the suction port 12. When the hair moves to the recessed area 221, the diameter of the hair wrapping around it suddenly decreases, and the hair loses support. This provides a certain amount of space for the entangled hair to expand, making it easier for the comb assembly 4 to straighten and loosen the hair, while also facilitating the hair's untangling and detachment from the roller brush assembly 2 and suction into the suction port 12. In particular, hair with a small number of entanglements, or hair that is not intertwined, suddenly loses support and can be directly detached from the roller brush assembly 2 and picked up into the dust collection box due to the greater suction force provided by the suction port 12 during the rotation of the roller brush assembly 2.

[0067] A roller brush cover 13 is also provided at the opening of the roller brush chamber 11. This cover 13 can be mounted to the housing 1 using snaps, screws, or other means. Specifically, the cover 13 and the roller brush chamber 11 enclose a storage space within which the roller brush assembly 2 is mounted. The cover 13 is constructed as an annular frame, with its opening aligning with the position where the roller brush assembly 2 extends, allowing the bristle element 21, support member 22, and other structures to extend for cleaning.

[0068] refer to Figure 2 and Figure 3 The cleaning device provided by the present disclosure further includes a comb tooth assembly 4, which has at least two comb tooth portions, and the at least two comb tooth portions are sequentially spaced apart along the axial direction of the roller brush assembly 2. There is a gap between two adjacent comb tooth portions. When entangled objects such as hair on the roller brush assembly 2 pass through the comb tooth assembly 4, the hair and other foreign matter will be combed into the comb tooth groove formed by the two adjacent comb tooth portions, and the hair and other foreign matter will be driven to move in the distribution direction of the comb tooth portions according to the inclination direction of the comb tooth portions, thereby allowing the hair passing through the comb tooth assembly 4 to be straightened and loosened during the movement.

[0069] In one embodiment of the present disclosure, the position of the comb tooth assembly 4 and the tilt direction of the comb tooth assembly 4 can be set, so that foreign matter such as hair moves toward a predetermined position in a predetermined direction. For example, the comb tooth assembly 4 can be set at a position corresponding to the dust suction port 12. Compared with the traditional comb teeth (or guide teeth, or guide ribs) throughout the roller brush chamber 11, the comb tooth assembly 4 of the present disclosure is set at a position close to the dust suction port 12, and the length of the comb tooth assembly 4 matches the length of the dust suction port 12. The part of the roller brush chamber 11 where the comb tooth assembly 4 is not set can be optionally a smooth chamber. With such a setting, dirt including hair and particles can be avoided from accumulating in the gaps of the comb teeth away from the dust suction port 12, thereby reducing the maintenance frequency of the roller brush chamber.

[0070] The comb tooth assembly 4 disclosed herein retains the function of the comb teeth to hook and loosen the hair, and at the same time, by providing guide teeth, the comb tooth assembly 4 itself also has a guiding function. Under the guiding function of the comb tooth assembly 4, the hair can be further moved to a position with greater suction force or loosened, thereby improving the effect of untangling and picking up the hair.

[0071] Compared with the traditional comb tooth assembly 4 which can only hook hair, the anti-entanglement system formed by the bristle element 21, support member 22 and comb tooth assembly 4 disclosed in the present invention can always keep the hair in an axial moving state of the roller brush assembly 2, avoiding the accumulation of hair in a certain position (for example, for traditional comb teeth, in a position parallel to the position between two comb teeth), thereby significantly improving the detangling effect.

[0072] The overall structure of the cleaning device has been described above. The specific structure, working mode, and disassembly and assembly mode of the roller brush cover 13 and the comb assembly 4 will be described in detail below.

[0073] Roller brush cover

[0074] refer to Figure 5 、 Figure 13 In one embodiment of the present disclosure, a blocking portion 131 extending toward the bristle element 21 is provided at a position corresponding to the recessed area 221 of the roller brush chamber 11, and the bristle element 21 corresponding to the blocking portion 131 is constructed to interfere with the blocking portion 131 during rotation.

[0075] Specifically, the blocking portion 131 can be an arc-shaped flange provided on the roller brush cover 13, and the arc-shaped flange is provided at a position corresponding to the recessed area 221 on the roller brush cover 13, so that the arc-shaped flange can extend to cooperate with the recessed area 221. That is, the blocking portion 131 extends from the position of the roller brush cover 13 toward the direction of the roller brush assembly 2 to cooperate with the recessed area 221 of the support member 22. It can be understood that when the roller brush assembly 2 rotates, the support member 22 cannot interfere with the arc-shaped flange, and the arc-shaped flange extends to the position of the recessed area 221, so that the arc-shaped flange can interfere with the bristle element 21 at the corresponding position. When the roller brush assembly 2 rotates, the blocking portion 131 will pass through the recessed area 221, and the blocking portion 131 will only interfere with the bristle element 21 and the hair wrapped around the support member 22, and will not have any contact with the support member 22.

[0076] Optionally, the surface profile of the blocking portion 131 is continuous without any gaps, thereby preventing hair from being entangled on the blocking portion 131 .

[0077] As the roller brush assembly 2 continues to rotate, the blocking portion 131 can slap the bristle element 21 in the middle area, exerting force on the hair wrapped around the roller brush assembly 2, causing the bristle bundle to deform when passing through the blocking portion 131, thereby making it possible for the bristle element 21 to throw off the hair wrapped around the roller brush assembly 2; in addition, the blocking portion 131 may also directly scrape off the hair wrapped around the roller brush assembly 2, and the hair that has detached from the roller brush assembly 2 can be directly picked up by the suction port 12. In addition, the blocking portion 131 can continuously slap the middle area of ​​the bristle element 21, thereby loosening foreign matter such as hair that is gathered or entangled in the middle area of ​​the bristle element 21, thereby improving the detachment and untangling effect of foreign matter such as hair. The provision of the blocking portion 131 further enhances the anti-entanglement effect of the roller brush assembly 2 and extends the service life of the cleaning device.

[0078] As described above, the roller brush cover 13 is mounted on the bottom of the housing 1 and is located at the opening of the roller brush chamber 11. The roller brush assembly 2 can be exposed from the hollow of the roller brush cover 13 to contact the work surface. The arcuate flange of the present disclosure can extend in a horizontal plane to cooperate with the bristle element 21 of the corresponding portion; in other embodiments, the arcuate flange can also extend at a predetermined angle relative to the work surface, such as extending obliquely away from the work surface or extending obliquely toward the work surface.

[0079] In one embodiment of the present disclosure, the blocking portion 131 is arranged on the side of the roller brush cover 13 adjacent to the dust suction port 12, or on the side adjacent to the comb tooth assembly 4, with the contact surface or contact line between the roller brush assembly 2 and the working surface as the boundary. Since the roller brush cover 13 is installed on the bottom 1 of the shell 1, the blocking portion 131 is lower than the comb tooth assembly 4 and the dust suction port 12 in the height direction. Therefore, as the bristle element 21 rotates with the roller brush body 23, the bristle element 21 will contact the blocking portion 131 in advance after leaving the working surface. After being beaten and untangled by the blocking portion 131, it will cooperate with the comb tooth assembly 4 during the continued rotation to cut, loosen, and comb the hair and other foreign matter located in the middle area through the comb tooth assembly 4, thereby ensuring the untangling effect of the hair and other foreign matter.

[0080] Comb tooth assembly

[0081] refer to Figure 4 、 Figures 8 to 12A comb tooth assembly 4 is provided at the position of the roller brush chamber 11 corresponding to the recessed area 221 of the support member 22. The comb tooth assembly 4 is constructed to interfere with the bristle element 21 at its corresponding position. The comb tooth assembly 4 includes comb tooth portions that are arranged at intervals and tilted. The multiple comb tooth portions are distributed in sequence along the axial direction of the roller brush assembly 2. When the entangled objects on the roller brush assembly 2, such as hair, pass through the comb tooth assembly 4, the hair will be combed into the gap, so that the hair passing through the comb tooth assembly 4 can be straightened and loosened, and the hair is moved as close to the suction port 12 as possible. At the same time, the hair is wound around the roller brush assembly 2 as evenly as possible, so that the suction port 12 can pick up the hair. When the roller brush assembly 2 rotates, the comb tooth assembly 4 will pass through the recessed area 221. The comb tooth assembly 4 will only interfere with the bristle element 21 and the hair wrapped around the support member 22, and will not have any contact with the support member 22.

[0082] In one embodiment of the present disclosure, in the X-axis direction, the end surface of the comb-tooth portion facing the roller brush assembly 2 is constructed to gradually rise from the outside to the inside. The comb-tooth portion as a whole has a shape that is low on both sides and high in the middle. Specifically, this shape matches the recessed area 221 on the support member 22. The closer the recessed area 221 is to the center, the deeper the depression is, and the corresponding end surface of the comb-tooth portion in the middle of the comb-tooth assembly 4 facing the roller brush assembly 2 is also higher; conversely, the closer the recessed area 221 is to the sides, the shallower the depression is, and the corresponding end surfaces of the comb-tooth portion on the sides of the comb-tooth assembly 4 facing the roller brush assembly 2 are also lower, thereby preventing interference between the comb-tooth assembly 4 and the support member 22. The shape of the comb-tooth assembly 4 is configured to match the recessed area 221, making it easier for the comb-tooth assembly 4 to capture hair entangled on the support member 22, thereby improving the efficiency of combing and untangling. In one embodiment of the present disclosure, the distance between the outline of the recessed area 221 and the comb-tooth assembly 4 ranges from 0.3mm to 1.5mm.

[0083] In one embodiment of the present disclosure, the comb tooth assembly 4 may only include a comb tooth portion, and the comb tooth portion may be directly disposed on the inner wall of the roller brush cavity 11. In another embodiment of the present disclosure, as Figure 8 As shown, the comb tooth assembly 4 includes a mounting plate 40 and a comb tooth portion provided on the mounting plate 40. The mounting plate 40 can be provided in the roller brush cavity 11. When the roller brush assembly 2 rotates in the roller brush cavity 11, the bristle element 21 and the hair wrapped around the bristle element 21 can interfere with the inner wall of the roller brush cavity 11, and can also interfere with the comb tooth portion provided on the mounting plate 40 or the inner wall of the roller brush cavity 11.

[0084] In one embodiment of the present disclosure, reference Figure 9The two opposite ends of the comb assembly 4 are respectively marked as the first end 43 and the second end 44. The relationship between the inclination direction of the comb portion and the rotation direction of the roller brush assembly 2 is as follows: the comb portion is constructed to gradually tilt outward from the first end 43 to the second end 44, which is pre-contacted by the bristle element 21. Figure 7 In the direction of view, the roller brush assembly 2 can drive the bristle element 21 to rotate upward during normal operation. The bristle element 21 can interfere with the comb teeth portion during the rotation process, and it pre-contacts the bottom of the comb teeth portion (reference Figure 10 The first end 43 (in the viewing direction) is the end of the comb portion extending outward; and the other end corresponding thereto is the second end 44.

[0085] In one embodiment of the present disclosure, reference Figure 10 , defining the central axis of the comb assembly 4 as axis W. For a comb tooth portion of the comb assembly 4, its first end 43 is closer to axis W than its second end 44. Thus, the comb tooth portion is tilted in a direction such that the first end 43 tilts closer to axis W. In this embodiment, the dust suction port 12 is located at the center, and axis W is the central axis of the dust suction port 12. The first end 43 of the comb tooth portion is configured to tilt closer to the central axis of the dust suction port 12.

[0086] In one embodiment of the present disclosure, the comb teeth portion extends from the first end 43 to the second end 44, gradually extending away from the bristle element 21. The comb teeth portion becomes shorter and shorter from the first end 43 to the second end 44, and the first end 43 and the second end 44 are connected in an arc shape, so that the side of the comb tooth assembly 4 facing the roller brush assembly 2 is arc-shaped, and the arc-shaped comb tooth assembly 4 can adapt to the surface of the roller brush assembly 2. The first end 43 of the comb tooth portion, which is closer to the bristle element 21, can interfere with the bristle element 21 in the rotating process in advance and hook or comb the hair wrapped around the support member 22. The higher first end 43 of the comb tooth portion makes it easier for the comb tooth portion to capture the hair. As the roller brush assembly 2 rotates, the bristle element 21 can slide along the direction from the first end 43 to the second end 44, while also driving the hair wrapped around the support member 22 to be combed into the gaps between adjacent sparse tooth portions, so that the sparse tooth portions can play a role in loosening the hair. The second end 44 of the comb portion, which is shorter, facilitates the separation of hair from the comb assembly 4. The loosened hair will not be entangled on the comb assembly 4, but can be picked up by the suction port 12 after separating from the comb assembly 4, or be rewound back onto the roller brush assembly 2.

[0087] In one embodiment of the present disclosure, the orthographic projection of the comb assembly 4 on the work surface is within the orthographic projection of the dust suction port 12 on the work surface. Specifically, the length of the comb assembly 4 does not exceed the length of the dust suction port 12. In one specific embodiment, the length of the comb assembly 4 is approximately 1 / 2 to 4 / 3 the length of the dust suction port 12. It will be appreciated that the length of the comb assembly 4 is related to the suction power of the dust suction port 12. The greater the suction power of the dust suction port 12, the longer the comb assembly 4 can be. This is because the dust suction port 12 needs to promptly pick up hair combed by the comb assembly 4 to prevent it from falling back onto the roller brush assembly 2 or the work surface. For a conventional length dust suction port 12, the length of the comb assembly 4 is shorter than the dust suction port 12. This allows the cleaning range of the dust suction port 12 to fully cover the location of the comb assembly 4, thereby avoiding the problem of insufficient suction power at the location of the comb assembly 4 where hair is entangled. Of course, the length of the comb assembly 4 cannot be too small, otherwise the comb assembly 4 will not be able to perform its functions such as detangling and guiding.

[0088] The length of the comb assembly 4 is shorter than the suction port 12, which allows the suction force on the comb assembly 4 to be maintained at a large dimension. This not only improves the suction effect on the comb assembly 4, but also improves the suction effect on dirt particles in the gaps between the comb teeth. In addition, because there are no comb teeth in the roller brush chamber 11 except for the location of the suction port 12, the accumulation of hair or dirt particles in the gaps between the comb teeth away from the suction port 12 and at a location with less suction force can be avoided, thereby keeping the roller brush chamber 11 clean and reducing the frequency of maintenance of the roller brush chamber 11.

[0089] The comb assembly 4 can be slightly longer than the suction port 12, but should not exceed 4 / 3 of the length of the suction port 12. The suction force of the suction port 12 is limited, decreasing the further away from the center of the suction port 12. If the comb assembly 4 slightly extends beyond the suction port 12, the suction port 12 can provide a certain amount of suction, allowing hair to be picked up promptly. However, if the comb assembly 4 extends too far beyond the suction port 12, the sides of the comb assembly 4 will not receive sufficient suction, and the suction port 12 will not be able to pick up hair on both sides of the comb assembly 4.

[0090] In one embodiment of the present disclosure, since the dust suction port 12 is set in the middle position, the comb tooth assembly 4 is also set in the middle position of the roller brush chamber 11. It is understandable that the comb tooth assembly 4 should be set in a position close to the dust suction port 12. After the comb tooth assembly 4 untangles the hair, the dust suction port 12 needs to promptly pick up the hair that has detached from the roller brush assembly 2. If the comb tooth assembly 4 is too far away from the dust suction port 12, the dust suction port 12 will not be able to clean the hair on the comb tooth assembly 4. The hair that is not picked up may be entangled in the comb tooth assembly 4, thereby reducing the untangling and guiding effect of the comb tooth assembly 4; the hair that is not picked up may also fall back onto the roller brush assembly 2 or the working surface, resulting in a reduced cleaning effect.

[0091] In one specific embodiment of the present disclosure, the comb assembly 4 is configured to be positioned near the suction port 12 along the path of hair movement. When the comb assembly 4 picks up hair entangled on the surface of the roller brush assembly 2 and untangles it by combing, longer hairs may become entangled in the comb teeth, while shorter hairs and hairs severed by the sparse teeth during rotation may naturally fall away under the action of gravity. The proximity of the comb assembly 4 to the suction port 12 makes it easier for the suction port 12 to pick up hair untangled by the comb assembly 4. Specifically, for hair entangled in the sparse teeth, the comb assembly 4 is within the suction range of the suction port 12, allowing the suction port 12 to easily pick up the hair. Furthermore, for hair that naturally falls after untangling, the proximity of the suction port 12 allows the hair to enter the suction range of the suction port 12 during its fall and be picked up by the suction port 12.

[0092] refer to Figure 12 When the hair follows the movement of the roller brush assembly 2, the hair first passes through the dust suction port 12 and then passes through the comb tooth assembly 4. Specifically, the direction in which the cleaning device moves on the work surface is defined as the front, the dust suction port 12 can be set at the rear position in the roller brush chamber 11, and the comb tooth assembly 4 can be set above the dust suction port 12. The roller brush assembly 2 sweeps up the hair on the work surface during rotation. The hair will first pass through the dust suction port 12 in the process of following the rotation of the roller brush assembly 2. Under the action of suction, some loosely entangled hair can be directly picked up by the dust suction port 12. Some hair that is not picked up by the dust suction port 12 will continue to rotate with the roller brush assembly 2 and be combed when passing through the comb tooth assembly 4. The hair that has been loosened, straightened, cut and guided by the comb tooth assembly 4 can be picked up by the dust suction port 12 under the action of gravity and suction.

[0093] In another embodiment of the present disclosure, as hair follows the movement of the roller brush assembly 2, it first passes through the comb assembly 4 and then through the suction port 12. Specifically, the comb assembly 4 can be positioned at the rear of the roller brush chamber 11, and the suction port 12 can be positioned above the comb assembly 4. As the roller brush assembly 2 rotates, it sweeps up hair from the work surface. As the hair follows the rotation of the roller brush assembly 2, it first passes through the comb assembly 4, where it is combed. The hair loosened, straightened, cut, and guided by the comb assembly 4 can then be directly picked up by the suction port 12.

[0094] In one embodiment of the present disclosure, the first end 43 of the comb assembly 4 faces the direction of the suction port 12, and the second end 44 of the comb assembly 4 is configured to gradually tilt outward from bottom to top. Since the suction port 12 is located in the middle, the sparse teeth on the comb assembly 4 are arranged in a V-shape as a whole. In short, the comb assembly 4 is arranged toward the suction port. Figure 10In the viewing direction, the sparse teeth on the left and right sides of the midline are tilted to the left and right, respectively, so that the first ends 43 of all the sparse teeth are tilted toward the middle position, that is, facing the dust suction port 12. This allows the hair that has been untangled by the comb tooth assembly 4 to be more easily picked up by the dust suction port 12 under the guidance of the sparse teeth.

[0095] In one embodiment of the present disclosure, reference Figure 11 The specific tilting manner of the comb tooth assembly 4 is as follows: two adjacent comb tooth portions are defined as an outer comb tooth portion and an inner comb tooth portion. In the direction perpendicular to the X-axis, the first end 43 of the outer comb tooth portion is configured to be located inward of the second end 44 of the inner comb tooth portion, or the first end 43 of the outer comb tooth portion is configured to be flush with the second end 44 of the inner comb tooth portion. Specifically, for the comb tooth portion located to the left of the center line, the first end 43 of the outer comb tooth portion is configured to be located to the right of the second end 44 of the inner comb tooth portion; for the comb tooth portion located to the right of the center line, the first end 43 of the outer comb tooth portion is configured to be located to the left of the second end 44 of the inner comb tooth portion.

[0096] For example, consider the scenario where hair wrapped around the left side of the roller brush assembly 2 is snagged by the comb teeth located on the left side. The combined forces of the bristle element 21, support member 22, and suction port 12 cause the hair wrapped around the roller brush assembly 2 to move toward the center, that is, toward the right. When the hair reaches the recessed area 221 in the center of the support member 22, it suddenly loses support, leaving room for the entangled hair to expand. As the brush continues to rotate, the hair is snagged by the comb teeth on the left side. Once snagged, the hair becomes entangled in the gap between two adjacent comb teeth. The comb teeth located to the right of the hair are the inner comb teeth, while the comb teeth located to the left of the hair are the outer comb teeth. During rotation, the hair is subjected to a leftward force component from the right comb teeth, resulting in a tendency for the hair to move to the left. Furthermore, because the first end 43 of the left comb teeth is positioned to the right of the second end 44 of the right comb teeth, the hair can pass over the left comb teeth during the entanglement process. In this way, the hair can move outward in the X-axis direction under the action of the comb tooth assembly 4.

[0097] When the hair continues to move outward to a position where it is separated from the comb tooth assembly 4, the roller brush assembly 2 will pick up the hair again, and the hair that is once again wrapped around the roller brush assembly 2 can move back to the middle position. During the above process, the hair will repeatedly wrap around the comb tooth assembly 4 and the roller brush assembly 2, causing the hair to reciprocate in the X-axis direction within the comb tooth assembly 4. Each time the hair is combed by the comb tooth assembly 4, there is a chance that the hair will be picked up by the dust suction port 12. Even if the hair is not picked up this time, there will be many more opportunities for the hair to be picked up during the reciprocating motion. The present disclosure increases the probability of the hair being picked up by the dust suction port 12 by tilting the comb tooth assembly 4 so that the hair can move toward the dust suction port 12 in the X-axis direction.

[0098] In one embodiment of the present disclosure, reference Figure 8 The comb tooth portion includes a first tooth portion 41 and a second tooth portion 42 arranged at intervals. In the direction opposite to the rotation direction of the roller brush assembly 2, the first end 43 of the first tooth portion 41 is configured to protrude from the first end 43 of the second tooth portion 42. The first ends 43 of the first tooth portion 41 and the second tooth portion 42 are respectively configured to be located on the movement path of the bristle element 21. This allows the hair wrapped around the bristle element 21 to be combed, loosened, and transported by the first tooth portion 41 and the second tooth portion 42 as the roller brush assembly 2 moves to the first ends 43 of the first tooth portion 41 and the second tooth portion 42.

[0099] In the direction opposite to the rotation direction of the roller brush assembly 2, the first end of the first tooth portion 41 is constructed to protrude from the first end 43 of the second tooth portion 42. The first end 43 of the first tooth portion 41 and the first end 43 of the second tooth portion 42 both extend from their connection position in the direction opposite to the rotation direction of the roller brush assembly 2, so that the first end 43 of the first tooth portion 41 and the first end 43 of the second tooth portion 42 can guide the hair on the roller brush assembly 2 to comb and loosen the hair during the rotation process. The first end 43 of the first tooth portion 41 is constructed to protrude from the first end 43 of the second tooth portion 42. This allows the bristle element 21 to pre-contact the first end 43 of the first tooth portion 41 after passing the working surface during the circular rotation process when the roller brush assembly 2 rotates, and then continue to rotate until it contacts the first end 43 of the second tooth portion 42. In this way, some messy hair can be pre-straightened and / or cut by the first tooth portion 41.

[0100] In one embodiment of the present disclosure, the end surface of the first end 43 of the first tooth portion 41 is configured to extend in a direction away from the rotational circumference of the roller brush assembly 2 relative to the end surface of the first end 43 of the second tooth portion 42. This allows foreign matter such as hair on the roller brush assembly 2 to be cut off or straightened by the first end 43 of the first tooth portion 41 during rotation.

[0101] Specifically, the first teeth 41 can hook hair, which is then combed into the gaps between the teeth, preventing it from becoming entangled. Furthermore, the roller brush assembly 2 drives the hair wrapped around it to rotate at high speed, so the first teeth 41 can also directly cut the hair. The severed hair no longer becomes entangled with the roller brush assembly 2 or the comb tooth assembly 4, but can instead be directly cleaned from the suction port 12. The first end 43 of the second teeth 42 extends gradually away from the roller brush assembly 2 from its connection point, preventing the second teeth 42 from hooking hair. Instead, the second teeth 42 serve only as a guide, specifically for combing hair and loosening its entanglements.

[0102] In one embodiment of the present disclosure, the end surface of the first end 43 of the first tooth portion 41 is configured to face the direction of the dust suction port 12. It can also be understood that, relative to the end surface of the first end 43 of the second tooth portion 42, the end surface of the first end 43 of the first tooth portion 41 is configured to be closer to the direction of the dust suction port 12. When the hair on the roller brush assembly 2 is hooked by the first end 43 of the first tooth portion 41 to be straightened, loosened or corrected, part of the hair can directly enter the dust collection box under the greater suction force of the dust suction port 12, which is conducive to the separation of foreign matter such as hair from the roller brush assembly 2, thereby reducing the number of foreign matter such as hair on the roller brush assembly 2, so that foreign matter such as hair on the roller brush assembly 2 gradually separates from the roller brush assembly 2.

[0103] In a specific embodiment of the present disclosure, all comb teeth are configured as first teeth 41, and no second teeth 42 are provided. In this case, all comb teeth have the function of hooking hair, thereby increasing the probability of the comb assembly 4 capturing hair. Hairs hooked by the first teeth 41 are simultaneously entangled in the comb assembly 4 and the roller brush assembly 2. The hairs will tug on the roller brush assembly 2 and create resistance to the rotation of the roller brush assembly 2. If only one or two hairs are hooked by the comb assembly 4, this resistance is not enough to affect the rotation of the roller brush assembly 2. However, when the comb assembly 4 hooks multiple hairs simultaneously, the multiple hairs will generate significant resistance, which may cause the roller brush assembly 2 to jam and damage the drive assembly 3. Therefore, in this embodiment, a large spacing is required between adjacent first teeth 41, and the number of first teeth 41 should not be too large, otherwise too many hairs will be entangled in the comb assembly 4, resulting in excessive resistance.

[0104] In another specific embodiment of the present disclosure, the comb teeth are entirely configured as second teeth 42, without the first teeth 41. In this case, the comb teeth cannot actively snag hair, but instead continuously comb the hair entangled on the surface of the roller brush assembly 2, like a comb. This combing efficiency is relatively low, but it can prevent hair from becoming entangled in the comb teeth assembly 4. In this embodiment, after being straightened, the hair can be separated from the roller brush assembly 2 by suction and picked up by the suction port 12.

[0105] In another specific embodiment of the present disclosure, the comb tooth portion includes a first tooth portion 41 and a second tooth portion 42, wherein, with reference to Figure 8 The outermost comb teeth are the first teeth 41, and the other relatively outer comb teeth are the second teeth 42. The inner comb teeth are the first teeth 41 and the second teeth 42 arranged at intervals. The inner first teeth 41 and the second teeth 42 can work together. The first teeth 41 hooks the hair wrapped around the roller brush assembly 2 and the adjacent second teeth 42 straightens and loosens the hair, making it easier for the suction port 12 to suck it away. The outer comb teeth work as follows:

[0106] The two comb teeth located at the outermost position are configured as the first tooth portion 41. Those skilled in the art will appreciate that hair smoothly wrapped around the roller brush assembly 2 in the circumferential direction will typically follow the roller brush assembly 2 to a more central position before being hooked by the comb tooth assembly 4. The comb teeth located at the outermost position are typically used to process hair that has just been swept up by the roller brush assembly 2 and has a disordered extension direction. For example, these hairs may extend along the working direction of the cleaning device, or may be vertical, at other angles, or curved. The outermost first tooth portion 41 is required to intercept such unwound hair and, after hooking the hair, change its direction so that it can be wrapped around the roller brush assembly 2 or the comb tooth assembly 4.

[0107] Except for the outermost comb tooth portion, the other relatively outer comb tooth portions are all second tooth portions 42. Here, multiple consecutively arranged second tooth portions 42 will not hook hair, but provide a component of force for the hair to move toward the suction port. As mentioned above, the front side of the cleaning device disclosed in the present invention is provided with a side brush, which will sweep in the direction of the roller brush assembly 2 to clean up garbage through the suction port 12. The side brush may sweep up a large amount of hair at one time, and a large amount of hair is prone to accumulation and needs to be loosened before it can be picked up. Therefore, it is necessary to continuously arrange multiple second tooth portions 42 near the outside. On the one hand, it can prevent a large amount of hair from being hooked onto the comb tooth assembly 4 at the same time, causing the comb tooth assembly 4 to be entangled. On the other hand, it can also be used to cope with the situation of cleaning a large amount of hair at one time, thereby improving the efficiency of combing hair.

[0108] As another optional embodiment, the first tooth portions 41 and the second tooth portions 42 are alternately arranged, and the specific positions of the first tooth portions 41 and the second tooth portions 42 are not limited.

[0109] As another optional embodiment, for the scheme in which the first tooth portions 41 and the second tooth portions 42 are staggered, the interval between two adjacent first tooth portions 41 is constructed to become smaller in the direction from the end of the dust suction port 12 to the center of the dust suction port 12, that is, the closer to the center of the dust suction port 12, the smaller the interval between the first tooth portions 41.

[0110] The interval between the two adjacent first tooth portions 41 on the outside is large, thereby reducing the resistance of foreign matter such as hair to the middle area. Specifically, when foreign matter such as hair moves toward the middle of the roller brush assembly 2, the first tooth portions 41 will block the moving hair and cut and straighten the hair in the process of blocking. If the interval between the first tooth portions 41 on the outside is set too small, foreign matter such as hair will not easily cross the first tooth portions 41 to move to the middle area of ​​the roller brush assembly, and will gather between the two adjacent first tooth portions 41, which is not conducive to the untangling of hair. In particular, when the cleaning device includes a side brush, the side brush is arranged on the front side of the cleaning device, which will sweep foreign matter such as hair on the front side to the outer area of ​​the comb tooth assembly 4.

[0111] In the embodiment of the present disclosure, at least two second tooth portions 42 are provided between two adjacent first tooth portions 41 on the outside, thereby increasing the distance between the two adjacent first tooth portions 41 on the outside. Although the outermost first tooth portion 41 still has a certain blocking effect on foreign matter such as hair, during the rotation of the roller brush assembly 2, other foreign matter such as hair that is not in contact with the first tooth portion 41 will still move to the middle area under the action of the bristle element 21; in addition, although the first tooth portion 41 cuts and straightens the hair it contacts, the other parts of the same hair in the circumferential direction will still move to the middle area under the action of the bristle element, thereby achieving the straightening and loosening of the hair through this reciprocating motion.

[0112] The closer to the center of the suction port 12, the smaller the spacing between the first teeth 41. First, fewer foreign objects, such as hair, are able to move to the center of the roller brush assembly 2. The closely spaced first teeth 41 can block these hairs to a certain extent, reducing their continued movement to the center. Furthermore, the closely spaced first teeth 41 allow more first teeth 41 to cut and straighten the hairs that accumulate in this location, allowing them to be picked up by the greater suction force at the center of the suction port 12.

[0113] To further illustrate the technical effect of the staggered first and second tooth portions 41, 42, this embodiment is compared with the other two embodiments. If the comb teeth are all first tooth portions 41 with higher end faces, due to the higher end faces of the first tooth portions 41, the main function of the first tooth portions 41 is to penetrate deep into the bottom of the bristles to hook the hairs. However, the gap formed between the two first tooth portions 41 will become an obstacle to the movement of the hairs, making it impossible for the hairs to move further toward the center of the suction port 12 where the suction force is the greatest. The hairs may accumulate at the position of the first tooth portions 41 that hooked the hairs. If the comb teeth are all second tooth portions 42 with lower end faces, since the second tooth portions 42 cannot penetrate deep into the bottom of the bristles to hook the hairs, although the second tooth portions 42 can provide a component of force for the hairs to move toward the center of the suction port 12, only the hairs that are more loosely entangled can continue to move toward the suction port 12. For those hairs that are more tightly entangled, due to the lack of hooking by the first tooth portions 41, they remain tightly entangled on the roller brush assembly 2 and cannot move inward, which also leads to the accumulation of hairs. Therefore, by adopting the staggered arrangement of the first and second tooth portions 41, 42 in this embodiment, the first tooth portion 41 can hook and loosen tightly entangled hair, and provide a movement path through the adjacent second tooth portion 42, so that the hair is closer and closer to the center of the suction port 12 where the suction force is greater. If the hair becomes further entangled during the movement, another first tooth portion 41 adjacent to the second tooth portion 42 can hook and loosen it again, and this arrangement is repeated until the hair is sucked away by the suction port 12.

[0114] The above embodiment describes the situation where the guiding direction of the comb tooth assembly 4 is opposite to the guiding direction of the bristle element 21 and the support member 22. At this time, the hair moved to the position of the comb tooth assembly 4 reciprocates under the joint action of the comb tooth assembly 4, the bristle element 21 and the support member 22, so that the distribution distance of the hair in the axial direction of the roller brush assembly 2 is increased, that is, an axial loosening effect is exerted on the hair, which is conducive to the untangling of the hair.

[0115] In another embodiment of the present disclosure, the guiding direction of the comb assembly 4 can be the same as that of the bristle element 21 and the support member 22, that is, the comb assembly 4 can guide hair toward the suction port 12. Specifically, the comb teeth can be arranged in an inverted V-shape, so that the comb assembly 4 performs the opposite guiding function as in the previous embodiment, that is, it can guide hair toward the center of the suction port 12. When hair wrapped around the bristle element 21 or the support member 22 moves from the ends of the roller brush assembly 2 toward the center, some of the hair will be caught by the comb teeth and continue to move toward the center under the action of the comb assembly 4 until the hair reaches a position with sufficient suction force and is picked up by the suction port 12. In this embodiment, regardless of where the hair is wrapped around the roller brush assembly 2, and regardless of whether it is wrapped around the bristle element 21, the support member 22, or the comb assembly 4, the hair will continue to be guided toward the center and move toward the center of the suction port 12, thereby increasing the probability of the hair being picked up by the suction port 12.

[0116] As hair follows the movement of the roller brush assembly 2, it first passes through the comb assembly 4 and then through the suction port 12. Specifically, the comb assembly 4 can be positioned at the rear of the roller brush chamber 11, and the suction port 12 can be positioned above the comb assembly 4. As the roller brush assembly 2 rotates, it sweeps up hair from the work surface. As the hair follows the rotation of the roller brush assembly 2, it first passes through the comb assembly 4. Guided by the comb assembly 4, the bristle element 21, and the support member 22, the hair moves toward the center of the suction port 12 until it reaches a location with sufficient suction force for pickup.

[0117] In another embodiment of the present disclosure, reference Figure 12 When the hair follows the movement of the roller brush assembly 2, the hair first passes through the dust suction port 12 and then passes through the comb tooth assembly 4. Specifically, the dust suction port 12 can be set at the rear position in the roller brush chamber 11, and the comb tooth assembly 4 can be set above the dust suction port 12. The roller brush assembly 2 sweeps up the hair on the working surface during the rotation. The hair will first pass through the dust suction port 12 in the process of following the rotation of the roller brush assembly 2. Under the action of suction and the guidance of the bristle element 21 and the support member 22, some hair can be directly picked up by the dust suction port 12. Some hair that is not picked up by the dust suction port 12 will continue to rotate with the roller brush assembly 2, and when passing through the comb tooth assembly 4, it will further move to a position with greater suction or be loosened, thereby improving the hair picking effect.

[0118] In one embodiment of the present disclosure, the comb tooth assembly 4 is constructed to be detachably mounted in the roller brush chamber 11. Specifically, the cleaning device picks up dust and hair on the working surface through the roller brush assembly 2, and combs and untangles the hair on the roller brush assembly 2 through the comb tooth assembly 4. Therefore, dirt easily accumulates inside the comb tooth assembly 4, for example, it easily accumulates in the position between each comb tooth part, which is more difficult to clean. For this reason, the present disclosure has designed a quick-release structure, so that the comb tooth assembly 4 can be detachably mounted in the roller brush chamber 11. The user can easily remove the comb tooth assembly 4 for cleaning, and can smoothly install it back into the roller brush chamber 11 after cleaning.

[0119] Specifically, the comb assembly 4 includes a first limiting end and a second limiting end. The first limiting end is configured to be limited by a first limiting portion provided in the roller brush chamber 11. The first limiting portion is configured to prevent the comb assembly 4 from moving in a direction opposite to the rotation direction of the roller brush assembly 2. The first limiting portion within the roller brush chamber 11 can be configured as a slot, a snap-fitting member, a flange, a magnetic member, or the like. This disclosure does not specifically limit the specific structure of the first limiting portion, the specific structure of the first limiting end, or the manner in which the first limiting portion and the first limiting end cooperate.

[0120] The second limiting end is configured to be limited by the roller brush cover 13, and the roller brush cover 13 is configured to prevent the comb assembly 4 from moving in the same direction as the rotation direction of the roller brush assembly 2. The roller brush cover 13 can block the second limiting end of the comb assembly 4 by covering, pressing, or locking. The present disclosure does not specifically limit the specific structure of the second limiting end and the manner in which the roller brush cover 13 cooperates with the second limiting end.

[0121] By cooperating with the first limiting end and the second limiting end of the comb tooth assembly 4, respectively, the comb tooth assembly 4 installed in the roller brush cavity 11 can maintain good stability, just like the fixed comb tooth assembly 4. During the rotation of the roller brush assembly 2, foreign matter such as hair entangled therein will exert a force on the comb tooth assembly 4 in the direction of rotation. Under the restraining action of the first limiting portion and the roller brush card cover 13, the comb tooth assembly 4 will not move in the direction of rotation or the opposite direction, thereby ensuring that the comb tooth assembly 4 installed in the roller brush cavity 11 has sufficient stability.

[0122] refer to Figure 15 The two sides of the roller brush cavity 11 in the circumferential direction are respectively recorded as the first side and the second side. The first side can be the front side of the roller brush cavity 11, and the second side can be the rear side of the roller brush cavity 11; further, the direction from the second side to the first side is the direction of rotation of the roller brush assembly 2, and the direction from the first side to the second side is the direction opposite to the rotation direction of the roller brush assembly 2.

[0123] In one embodiment of the present disclosure, a guide groove 114 is provided on the inner wall of the roller brush chamber 11, and the comb tooth assembly 4 is constructed to slide along the first side of the guide groove 114 until the first limiting end cooperates with the first limiting portion located on the second side of the guide groove 114. The comb tooth assembly 4 can be mounted on the inner wall of the roller brush chamber 11 in a sliding manner. As mentioned above, the comb tooth assembly 4 includes a mounting plate 40, and the mounting plate 40 is constructed to match the contour of the roller brush chamber 11. Specifically, the curvature of the mounting plate 40 can be consistent with the curvature of the inner wall of the roller brush chamber 11, thereby facilitating the sliding of the comb tooth assembly 4 during assembly and disassembly. In addition, the contour of the mounting plate 40 that matches the roller brush chamber 11 reduces the assembly gap between the comb tooth assembly 4 and the inner wall of the roller brush chamber 11, thereby avoiding dust accumulation in the gap.

[0124] refer to Figure 14 and Figure 16 The two sides of the guide groove 114 are constructed with stepped surfaces 115. The two opposite edges of the comb assembly 4 are constructed as covering portions 47. The covering portions 47 are configured to adapt to and cover the stepped surfaces 115. The stepped surfaces 115 are step structures provided on the inner wall of the roller brush chamber 11. The stepped surfaces 115 are located on the left and right sides of the guide groove 114 and protrude relative to the guide groove 114. The covering portions 47 can be step structures provided on the left and right edges of the mounting plate 40. The covering portions 47 on both sides extend and protrude to the sides, respectively, so as to cover the stepped surfaces 115.

[0125] The two stepped surfaces 115 are positioned to mate with the covering portions 47 on either side of the comb assembly 4, facilitating alignment when installing the comb assembly 4. The user can easily locate the edge of the guide slot 114 and align the edge of the comb assembly 4 mounting plate 40 with the edge of the guide slot 114, facilitating sliding the comb assembly 4 along the first side of the guide slot 114 to the second side. The covering portions 47 cover the stepped surfaces 115, preventing dust from accumulating on and around the side edges of the stepped surfaces 115.

[0126] In one embodiment of the present disclosure, reference Figure 15 and Figure 16The first limiting end includes a first limiting buckle 45 provided on opposite sides of the comb tooth assembly 4. The first limiting portion includes a first limiting groove 113 connected to the guide groove 114. The first limiting buckle 45 is configured to slide from the guide groove 114 to and snap into the first limiting groove 113. A first limiting buckle 45 protruding outward can be provided on each of the left and right sides of the comb tooth assembly 4 near the second side. The degree to which the first limiting buckle 45 protrudes outward can be flush with the covering portion 47, thereby facilitating the sliding of the comb tooth assembly 4 in the guide groove 114. Two first limiting grooves 113 are provided on both sides of the second side end of the guide groove 114. The first limiting groove 113 is used to accommodate the first limiting buckle 45. The inner wall of the first limiting groove 113 can act as a stop to prevent the comb tooth assembly 4 from continuing to slide toward the second side.

[0127] When the user slides the comb assembly 4 into place within the guide groove 114, the two first limiting buckles 45 extend into the two first limiting grooves 113 respectively, completely disappearing from the user's field of vision; after the first limiting buckles 45 move into the first limiting grooves 113, the user can feel obvious resistance, thus ensuring that the installation is in place. During normal operation of the cleaning device, when the roller brush assembly 2 applies a force from the first side to the second side (a force opposite to the rotation direction of the roller brush assembly 2) to the comb assembly 4 through rotation, the comb assembly 4 will not slide toward the second side due to the blocking effect of the first limiting grooves 113.

[0128] In one embodiment of the present disclosure, the ratio of the length of the first limiting groove 113 extending along the inner wall of the roller brush chamber 11 to the circumference of the inner wall of the roller brush chamber 11 along the rotation direction of the roller brush assembly 2 is moderate. This ensures that the installation stroke of the first limiting buckle 45 on the comb assembly 4 is appropriate. If the installation stroke is too long, the installation will be more laborious and inconvenient; if the installation stroke is too short, the fixation will be insufficient and the stability will be insufficient. This embodiment limits the length of the first limiting groove 113 extending along the inner wall of the roller brush chamber 11, thereby limiting the installation stroke of the first limiting buckle 45 to an appropriate range, improving the convenience of installation while ensuring the stability of installation.

[0129] In one embodiment of the present disclosure, reference Figure 15 、 Figures 17 to 19 The second limiting end includes an abutting surface 46 provided adjacent to the first side of the comb assembly 4. The roller brush cover 13 is provided with a second limiting portion, which may include a matching portion 134 provided on the roller brush cover 13. The roller brush cover 13 is configured such that after being installed on the housing 1, the matching portion 134 matches the abutting surface 46 to prevent the comb assembly 4 from moving along the rotation direction of the roller brush assembly 2. Figure 18As shown, after the comb tooth assembly 4 is installed in place, the thickness of the comb tooth assembly 4 can fill the guide groove 114, and its abutment surface 46 adjacent to the first side is located in a position flush with the inner wall of the roller brush chamber 11, and together constitute an inwardly protruding step structure. A matching portion 134 is provided on the side of the roller brush cover 13 close to the housing 1. The matching portion 134 can be an edge end face of the roller brush cover 13, and the blocking portion 131 mentioned above can be an arc-shaped flange formed by extending from the edge end face where the matching portion 134 is located. After the roller brush cover 13 is installed on the housing 1, the matching portion 134 can be pressed onto the abutment surface 46, thereby achieving the fixation of the first side end face of the comb tooth assembly 4. During the normal operation of the cleaning device, when the roller brush assembly 2 applies a force from the second side to the first side (a force in the same direction of rotation as the roller brush assembly 2) to the comb tooth assembly 4 by rotating, the comb tooth assembly 4 will not slide toward the first side under the blocking action of the matching portion 134.

[0130] During the process of the user installing the comb assembly 4, if the roller brush cover 13 has not yet been installed, the comb assembly 4 cannot be fully positioned only by the first limiting buckle 45 and the first limiting groove 113. After the user lets go, the comb assembly 4 may slide from the second side to the first side. In one embodiment of the present disclosure, a third limiting end is provided on the comb assembly 4, and a third limiting portion is provided in the roller brush chamber 11. The third limiting end is constructed to cooperate with the third limiting portion to pre-position the comb assembly 4. When the first limiting buckle 45 moves to fit into the first limiting groove 113, the third limiting end can cooperate with the third limiting portion to pre-position the comb assembly 4, so that the comb assembly 4 can at least maintain its position without being applied with external force by the roller brush assembly 2, and will not slide along the roller brush chamber 11. When the roller brush cover 13 has not yet been installed or has been detached, the comb assembly 4 will not easily fall from the roller brush chamber 11, thereby improving the fixing effect of the comb assembly 4.

[0131] Specifically, the third limiting end is set on the comb assembly 4 at a position adjacent to the first side thereof, and one of the third limiting end and the third limiting portion is a groove 117, and the other is a buckle 49, such as Figure 14 As shown, in a specific embodiment of the present disclosure, the third limiting end is a buckle 49, and the third limiting portion is a groove 117. After the comb assembly 4 is installed in place, the buckle 49 is configured to be engaged within the groove 117. The first limiting buckle 45 is located near the second side of the comb assembly 4, and the buckle 49 is located near the first side of the comb assembly 4. The two limiting structures are arranged separately from each other, thereby fixing the two sides of the comb assembly 4, thereby improving the stability of the fixation.

[0132] During installation, it is difficult for the user to directly observe the fit between the first limiting buckle 45 and the first limiting groove 113, and therefore may not be able to confirm whether the comb assembly 4 is properly installed. However, the fit between the buckle 49 and the groove 117 can be directly observed by the user, and when the buckle 49 is properly installed, there is a clear feel and a snapping sound when it is locked into the groove 117, which can remind the user whether the comb assembly 4 is properly installed.

[0133] In one embodiment of the present disclosure, reference Figure 14 and Figure 18 , an operating portion 48 is provided on the first side of the comb tooth assembly 4, and the operating portion 48 is constructed to extend outward from the first side of the comb tooth assembly 4. A notch 116 is provided on the first side edge of the roller brush chamber 11, and the operating portion 48 is constructed to fit in the notch 116, and the outer side surface of the operating portion 48 is exposed to the outside of the roller brush chamber 11. Two operating portions 48 can be provided at intervals on the first side of the comb tooth assembly 4, and the buckle 49 can be located between the two operating portions 48. Two notches 116 are respectively provided at the edge positions of the first side of the roller brush chamber 11, and the two notches 116 are respectively adapted to the two operating portions 48. When the comb tooth assembly 4 is installed in place, the two operating portions 48 are exposed to the outside of the roller brush chamber 11 through the two notches 116, and the buckle 49 is snapped into the groove 117. When the user needs to remove the comb assembly 4, they can push the two operating parts 48. This will cause the comb assembly 4 to deform slightly, and the buckle 49 will disengage from the groove 117, thereby eliminating the positioning of the first side of the comb assembly 4, and the user can slide and remove the comb assembly 4. This embodiment provides an operating part to facilitate the disengagement between the third limit end and the third limit part, thereby reducing the difficulty of disassembling the comb assembly 4 and improving the user experience.

[0134] In one embodiment of the present disclosure, the roller brush cover 13 is configured to cooperate with the edge of the operating portion 48 after being mounted on the housing 1 to prevent the comb assembly 4 from moving along the rotation direction of the roller brush assembly 2. Figure 19 A protrusion 135 is provided on the roller brush card cover 13. The protrusion 135 protrudes further forward than the matching portion 134, thereby matching with the edge of the operating portion 48 exposed outside the roller brush chamber 11. After the roller brush card cover 13 is installed on the housing 1, the protrusion 135 can be pressed onto the edge end face of the operating portion 48, thereby fixing the first side end face of the comb tooth assembly 4. During normal operation of the cleaning device, when the roller brush assembly 2 applies a force from the second side to the first side (a force in the same direction of rotation of the roller brush assembly 2) to the comb tooth assembly 4 through rotation, the comb tooth assembly 4 will not slide toward the first side due to the blocking effect of the protrusion 135.

[0135] In one embodiment of the present disclosure, the comb tooth assembly 4 includes a comb tooth portion located on the second side of the mounting plate 40, and the edge of the second side of the mounting plate 40 is flush with the edge of the second side of the roller brush chamber 11, so that after the comb tooth assembly 4 is installed in the roller brush chamber 11, the comb tooth portion is located at the second side edge of the roller brush chamber 11. When the roller brush assembly 2 drives the hair wrapped thereon to rotate to a position entering the roller brush chamber 11, the comb tooth assembly 4 can comb the hair immediately. In addition, the edge of the comb tooth assembly 4 is flush with the edge of the second side of the roller brush chamber 11, thereby preventing a height difference between the two. If there is a height difference between the two, a step structure that is prone to dust accumulation will be formed. The present disclosure sets the edge of the mounting plate 40 flush with the edge of the roller brush chamber 11, so that the comb tooth assembly 4 can be installed in the roller brush chamber 11 in a tight fit, thereby avoiding the formation of dead corners for dust accumulation.

[0136] Application Scenario 1

[0137] The cleaning device disclosed herein may be a robot vacuum cleaner. In a household cleaning scenario, when the robot vacuum cleaner is cleaning the floor, the roller brush assembly 2 can sweep up hair on the floor. In addition, the side brush provided on the front side of the robot vacuum cleaner also sweeps in the direction of the roller brush assembly 2. The side brush may sweep up a large amount of hair at once. In this case, the comb assembly 4 needs to comb these hairs before they can be picked up by the suction port 12.

[0138] The two outermost teeth of the comb assembly 4 are designated as the first teeth 41. Because hair swept by the side brush typically hasn't yet circumferentially wrapped around the roller brush assembly 2, its extension direction is chaotic and disordered. These hairs may extend in the direction of the cleaning device, or vertically, at other angles, or even curved. The outermost first teeth 41 intercept these unwound hairs and redirect them after hooking them, allowing them to wrap around the roller brush assembly 2 or the comb assembly 4.

[0139] The outer side of the comb assembly 4 is continuously provided with a plurality of second teeth 42, which guide and comb the hair. Large amounts of hair swept by the side brush can easily accumulate. These second teeth 42 prevent a large amount of hair from being caught on the comb assembly 4 simultaneously, potentially causing entanglement. Furthermore, they allow a large amount of hair to be combed at once, improving combing efficiency. The hair guided and combed by the second teeth 42 is partially sucked directly away by the suction port 12, while some is circumferentially wrapped around the roller brush assembly 2 and comb assembly 4, reciprocating in the X-axis direction until it is picked up by the suction port 12.

[0140] When a large amount of hair is entangled or accumulated on the comb tooth assembly 4, in order to ensure that the comb tooth assembly 4 can perform its function normally, the user can remove the comb tooth assembly 4 from the roller brush chamber 11. The disassembly process is as follows: first remove the roller brush card cover 13, and then the user only needs to push the two operating parts 48, so that the comb tooth assembly 4 is slightly deformed, and the buckle 49 is disengaged from the groove 117, thereby eliminating the positioning of the first side of the comb tooth assembly 4, and the user can slide to remove the comb tooth assembly 4.

[0141] After the user has cleaned the comb tooth assembly 4, he can easily install it back into the roller brush chamber 11. The installation process is as follows: the user aligns the comb tooth assembly 4 with the first side of the guide groove 114, and slides the comb tooth assembly 4 along the first side of the guide groove 114 until the first limiting buckle 45 is engaged in the first limiting groove 113 located on the second side of the guide groove 114. The first limiting groove 113 can prevent the comb tooth assembly 4 from continuing to slide toward the second side; then the user can install the roller brush card cover 13 onto the shell 1. When installed in place, the mating portion 134 cooperates with the abutment surface 46, and the mating portion 134 can prevent the comb tooth assembly 4 from sliding toward the first side.

[0142] By cooperating with the first limiting groove 113 and the roller brush cover 13 with the first limiting buckle 45 and the abutting surface 46 of the comb tooth assembly 4, respectively, the comb tooth assembly 4 installed in the roller brush chamber 11 can maintain good stability, just like the fixed comb tooth assembly 4. During the rotation of the roller brush assembly 2, foreign matter such as hair entangled therein will exert a force on the comb tooth assembly 4 in the direction of rotation. Under the restraining effect of the roller brush cover 13, the comb tooth assembly 4 will not move in the direction of rotation or the opposite direction, thereby ensuring that the comb tooth assembly 4 installed in the roller brush chamber 11 has sufficient stability.

[0143] The embodiments of the present disclosure have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terms used herein are selected to best explain the principles of the embodiments, their practical applications, or technical improvements in the marketplace, or to enable other persons skilled in the art to understand the embodiments disclosed herein. The scope of the present disclosure is defined by the appended claims.

Claims

1. A cleaning device, characterized in that: include: A housing (1), wherein a rolling brush chamber (11) is provided on the housing (1); A roller brush card cover (13), wherein the roller brush card cover (13) is configured to enclose a receiving space together with the roller brush cavity (11); a roller brush assembly (2), the roller brush assembly (2) being installed in the accommodating space and being configured to rotate relative to the housing (1) to clean the working surface; A comb tooth assembly (4) is constructed to be detachably mounted in the roller brush cavity (11), and the comb tooth assembly (4) comprises a first limiting end and a second limiting end, wherein the first limiting end is constructed to be limited by a first limiting portion provided in the roller brush cavity (11), and the second limiting end is constructed to be limited by the roller brush card cover (13).

2. The cleaning device according to claim 1, characterized in that The two sides of the roller brush chamber (11) in the circumferential direction thereof are respectively marked as a first side and a second side; a guide groove (114) is provided on the inner wall of the roller brush chamber (11), and the comb tooth assembly (4) is constructed to slide along the first side of the guide groove (114) until the first limiting end cooperates with a first limiting portion located on the second side of the guide groove (114).

3. The cleaning device according to claim 2, characterized in that Both sides of the guide groove (114) are constructed to have step surfaces (115), and the opposite side edges of the comb tooth assembly (4) are constructed to be covering parts (47), and the covering parts (47) are constructed to be compatible with the step surfaces (115) and cover the step surfaces (115).

4. The cleaning device according to claim 2, characterized in that The first limiting end comprises a first limiting buckle (45) arranged on opposite sides of the comb tooth assembly (4); the first limiting portion comprises a first limiting groove (113) communicating with the guide groove (114); the first limiting buckle (45) is configured to be able to slide from the guide groove (114) to and be engaged in the first limiting groove (113).

5. The cleaning device according to claim 2, characterized in that The second limiting end includes an abutting surface (46) arranged adjacent to the first side of the comb tooth assembly (4); a second limiting portion is provided on the roller brush card cover (13); the second limiting portion includes a matching portion (134) arranged on the roller brush card cover (13); after the roller brush card cover (13) is installed on the housing (1), the matching portion (134) cooperates with the abutting surface (46) to prevent the comb tooth assembly (4) from moving along the rotation direction of the roller brush assembly (2).

6. The cleaning device according to claim 2, characterized in that An operating portion (48) is provided on the first side of the comb tooth assembly (4), and the operating portion (48) is configured to extend outward from the first side of the comb tooth assembly (4); a notch (116) is provided on the first side edge of the roller brush chamber (11), and the operating portion (48) is configured to fit within the notch (116), with the outer side surface of the operating portion (48) exposed outside the roller brush chamber (11).

7. The cleaning device according to claim 6, characterized in that The roller brush card cover (13) is configured to cooperate with the edge of the operating portion (48) after being mounted on the housing (1) to prevent the comb assembly (4) from moving along the rotation direction of the roller brush assembly (2).

8. The cleaning device according to claim 1, characterized in that The comb tooth assembly (4) is provided with a third limiting end, the roller brush chamber (11) is provided with a third limiting portion, and the third limiting end is configured to cooperate with the third limiting portion to pre-position the comb tooth assembly (4).

9. The cleaning device according to claim 8, characterized in that The third limiting end is arranged on the comb tooth assembly (4) at a position adjacent to the first side thereof; one of the third limiting end and the third limiting portion is a groove (117), and the other is a buckle (49); after the comb tooth assembly (4) is installed in place, the buckle (49) is configured to be engaged in the groove (117).

10. The cleaning device according to claim 2, characterized in that The comb tooth assembly (4) includes a mounting plate (40), and the mounting plate (40) is configured to match the contour of the roller brush chamber (11); the comb tooth assembly (4) also includes a comb tooth portion located on a second side of the mounting plate (40), and the edge of the second side of the mounting plate (40) is flush with the edge of the second side of the roller brush chamber (11).

Images