Floor brush assembly and cleaning device

Abstract

The utility model discloses a floor brush component and cleaning device relates to cleaning device technical field, the floor brush component includes shell, roll brush and comb tooth structure, the interior of shell is provided with roll brush cavity, roll brush is rotatablely provided in roll brush cavity, roll brush includes roll body and a plurality of brush strip, brush strip is connected to roll body's peripheral wall and is arranged along the radial direction of roll body, the roll body is equipped with the comb tooth structure, and the roll body is equipped with the comb tooth structure. The multiple brush strips are arranged at intervals in the axial direction of the roller body, the comb tooth structure comprises multiple first tooth parts arranged at intervals in the axial direction of the roller body, the first tooth parts are formed on the inner wall of the rolling brush cavity in a protruding mode, a groove is defined between every two adjacent first tooth parts, a protruding part is arranged on one side of each first tooth part, and the clamping grooves and the grooves are sequentially arranged in the rotating direction of the rolling brush. When the rolling brush rotates, the brush strip sequentially passes through the clamping groove and the groove, the clamping groove can hook hair wound on the brush strip, and the rolling brush is cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning devices, in particular to a floor brush assembly and a cleaning device. Background Art

[0002] With the continuous improvement of people's living standards, vacuum cleaners, as a tool for sanitary cleaning, have become essential electrical appliances in people's daily life. In related technologies, the roller brush in the vacuum cleaner directly contacts the object to be cleaned, and the roller brush is easily contaminated and entangled by various sundries, such as slender sundries like hair, which affects the cleaning effect of the roller brush and easily causes the roller brush to jam and unable to rotate, seriously affecting the user experience. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a floor brush assembly, which can alleviate the problem of hair entanglement in the floor brush assembly.

[0004] The utility model also provides a cleaning device with the above floor brush assembly.

[0005] The floor brush assembly according to the first aspect embodiment of the utility model includes: a housing with a roller brush cavity inside; a roller brush rotatably arranged in the roller brush cavity, the roller brush including a roller body and a plurality of brush strips, the plurality of brush strips being connected to the outer peripheral wall of the roller body and arranged at intervals along the circumferential direction of the roller body; a comb tooth structure including a plurality of first tooth parts arranged at intervals along the axial direction of the roller body, the first tooth parts protruding from the inner wall of the roller brush cavity, a groove being defined between two adjacent first tooth parts, the opening of the groove facing the roller brush, a convex part being provided on the end face of the first tooth part away from the inner wall of the roller brush cavity, a clamping groove being defined between the convex part and the end face of the first tooth part, the clamping groove being located on the side of the convex part away from the roller brush, and the clamping groove and the groove being arranged in sequence along the rotation direction of the roller brush.

[0006] The floor brush assembly according to the first aspect embodiment of the utility model has at least the following beneficial effects: By arranging a comb tooth structure in the roller brush cavity, the comb tooth structure includes a plurality of first tooth parts, a convex part is provided on one side of the first tooth part, a groove is formed between two adjacent first tooth parts, and a clamping groove is formed between the first tooth part and the convex part. Since the clamping groove and the groove are arranged in sequence along the rotation direction of the roller brush, when the roller brush rotates, the brush strips of the roller brush will sequentially pass through the clamping groove and the groove, and the hair sundries in the brush strips of the roller brush are hooked by the clamping groove, so as to pull out the hair sundries from the brush strips, and the hair and other sundries wound in the brush strips can be cleaned. The first tooth part can also comb the brush strips to clean the sundries in the brush strips.

[0007] According to some embodiments of the present utility model, the inner wall of the groove includes a bottom wall facing the roller brush, and the minimum distance between the brush strip and the bottom wall is less than or equal to 3 mm.

[0008] According to some embodiments of the present utility model, the convex portion includes a first side wall and a second side wall arranged back to back with each other. The first side wall faces the roller brush, and the second side wall faces away from the roller brush. The first tooth portion includes a third side wall and a fourth side wall forming an included angle with each other. The third side wall faces the roller brush. One end of the third side wall is connected to the inner wall of the roller brush cavity, the other end of the third side wall is connected to one end of the fourth side wall, and the other end of the fourth side wall is connected to the inner wall of the roller brush cavity. The convex portion protrudes from the fourth side wall, and a card slot is defined between the second side wall and the fourth side wall.

[0009] According to some embodiments of the present utility model, the third side wall is arranged in the vertical direction, the fourth side wall is arranged in the horizontal direction, and the length of the third side wall is greater than the length of the fourth side wall.

[0010] According to some embodiments of the present utility model, the maximum distance between the second side wall and the axis of the roller body is less than the maximum distance between the first tooth portion and the axis of the roller body.

[0011] According to some embodiments of the present utility model, the first side wall is flush with the third side wall.

[0012] According to some embodiments of the present utility model, the comb tooth structure further includes a plurality of second tooth portions arranged at intervals along the axial direction of the roller body. The second tooth portions are connected to the inner wall of the roller brush cavity. Along the circumferential direction of the roller body, the second tooth portions are arranged at intervals with the first tooth portion and are configured such that when the roller brush rotates, the brush strip sequentially passes through the first tooth portion and the second tooth portion.

[0013] According to some embodiments of the present utility model, the inner wall of the roller brush cavity includes a first arc wall and a second arc wall that are arranged around the axis of the roller body and are connected to each other. The first arc wall and the second arc wall are arranged along the circumferential direction of the roller body. The inner diameter of the first arc wall is greater than the inner diameter of the second arc wall. There is a spacing between the first arc wall and the brush strip. The second tooth portion protrudes from the first arc wall, and the first tooth portion protrudes from the second arc wall.

[0014] According to some embodiments of the present utility model, the comb tooth structure includes a reinforcing rib. The reinforcing rib protrudes from the inner wall of the roller brush cavity and is arranged along the axial direction of the roller body. A plurality of the second tooth portions are respectively connected to the reinforcing rib.

[0015] The cleaning device according to the second aspect embodiment of the present utility model includes the floor brush assembly of the first aspect embodiment.

[0016] Since the cleaning device according to the second aspect embodiment of the present utility model includes the floor brush assembly of the first aspect embodiment, it has at least the above-mentioned beneficial effects, which will not be elaborated here.

[0017] According to some embodiments of the present utility model, the cleaning device is provided with a dust suction channel and a dust collection chamber. The dust suction channel communicates the roller brush chamber with the dust collection chamber. The first tooth portion is located at the junction of the roller brush chamber and the dust suction channel, and the side of the convex portion facing away from the roller brush faces the dust suction channel.

[0018] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following will further illustrate the present utility model with reference to the drawings and embodiments, where:

[0020] Figure 1 is a cross-sectional view of the cleaning device according to some embodiments of the present utility model;

[0021] Figure 2 is Figure 1 an enlarged view of part A in

[0022] Figure 3 is a schematic structural view of the housing and the comb tooth structure of the cleaning device according to some embodiments of the present utility model;

[0023] Figure 4 is Figure 3 an enlarged view of part B in

[0024] Figure 5 is a cross-sectional view of the cleaning device according to some embodiments of the present utility model;

[0025] Figure 6 is a cross-sectional view of the cleaning device according to some embodiments of the present utility model;

[0026] Figure 7 is a cross-sectional view of the cleaning device according to some embodiments of the present utility model;

[0027] Figure 8 is a cross-sectional view of the housing of the cleaning device according to some embodiments of the present utility model;

[0028] Figure 9 is Figure 8 an enlarged view of part C in

[0029] Figure 10 is Figure 8Enlarged view of position D in [the figure];

[0030] Figure 11 Cross-sectional view of the housing of the cleaning device according to some embodiments of the present utility model;

[0031] Figure 12 is Figure 11 Enlarged view of position E in [the figure].

[0032] Reference numerals:

[0033] Floor brush assembly 1000;

[0034] Housing 100, roller brush chamber 110, first arc wall 111, second arc wall 112, opening 120, dust suction channel 130;

[0035] Roller brush 200, roller body 210, brush strip 220, scraping strip 230;

[0036] Comb tooth structure 300, first tooth part 310, groove 311, bottom wall 3112, third side wall 312, fourth side wall 313, convex part 320, first side wall 321, second side wall 322, card slot 323, second tooth part 330, reinforcing rib 340. Detailed implementation manner

[0037] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0038] Refer to Figure 1 As shown, it is the floor brush assembly 1000 of the embodiment of the present utility model. The floor brush assembly 1000 includes a housing 100, a roller brush 200, and a comb tooth structure 300.

[0039] Refer to Figure 1 and Figure 2As shown in the figure, a roller brush cavity 110 is provided inside the housing 100. The roller brush 200 is located in the roller brush cavity 110. An opening 120 is provided on the lower side of the housing 100. The opening 120 is communicated with the roller brush cavity 110. A part of the structure of the roller brush 200 extends out of the housing 100 from the opening 120, so that the roller brush 200 can contact and clean the surface of the object to be cleaned. The roller brush 200 is rotatably connected in the roller brush cavity 110. The floor brush assembly 1000 includes a driving motor, and the driving motor can drive the roller brush 200 to rotate around its own axis. The comb tooth structure 300 is also located in the roller brush cavity 110. When the roller brush 200 rotates, the roller brush 200 sweeps across the comb tooth structure 300. The comb tooth structure 300 can hook hairs and other sundries in the roller brush 200. It can also be understood that the comb tooth structure 300 can block hairs and other sundries in the roller brush 200, making it difficult for the hairs and other sundries to rotate together with the roller brush 200, so as to isolate the hairs and other sundries and achieve a cleaning effect.

[0040] Specifically, for the structure of the roller brush 200, refer to Figure 2 and Figure 6 As shown in the figure, the roller brush 200 includes a roller body 210 and a plurality of brush strips 220. The axis of the roller brush 200 is the same as the axis of the roller body 210. The axial direction of the roller brush 200 is the same as the axial direction of the roller body 210. The roller brush 200 rotates around the axis of the roller body 210. The brush strips 220 play a cleaning role. The brush strips 220 can be in a thin strip structure or a thick strip structure. The brush strips 220 can be set as brush hairs or rubber strips. One end of the brush strip 220 is connected to the outer peripheral wall of the roller body 210 and is arranged along the radial direction of the roller body 210. A plurality of brush strips 220 are arranged at intervals along the axial direction of the roller body 210.

[0041] Refer to Figure 2 As shown in the figure, for the structure of the comb tooth structure 300, the comb tooth structure 300 includes a plurality of first tooth parts 310. The plurality of first tooth parts 310 are arranged at intervals along the axial direction of the roller body 210. The first tooth parts 310 protrude from the inner wall of the roller brush cavity 110. The first tooth parts 310 and the inner wall of the roller brush cavity 110 are of an integral structure. Refer to Figure 4 As shown in the figure, in some embodiments, the first tooth parts 310 are arranged downward. When the roller brush 200 rotates, the brush strips 220 will contact the lower ends of the first tooth parts 310 face to face from bottom to top. Specifically, a groove 311 is defined between two adjacent first tooth parts 310. The opening of the groove 311 faces the roller brush 200. The inner wall of the groove 311 includes a bottom wall 3112. The bottom wall 3112 faces the roller brush 200. When the roller brush 200 rotates, the brush strips 220 will enter the groove 311. A convex part 320 is provided on one side of the first tooth part 310. The convex part 320 is located on the side of the first tooth part 310 away from the inner wall of the roller brush cavity 110. It can be understood that the convex part 320 is located outside the groove 311. Refer to Figure 2As shown, a card slot 323 is defined between the first tooth portion 310 and the convex portion 320. The card slot 323 is located on the side of the convex portion 320 away from the roller brush 200. Along the rotation direction of the roller brush, the card slot 323 and the groove 311 are arranged in sequence along the rotation direction of the roller brush 200. When the roller brush 200 rotates, the brush strip 220 sequentially passes through the card slot 323 and the groove 311.

[0042] Referring to Figure 8 and Figure 9 As shown, the convex portion 320 includes a first side wall 321 and a second side wall 322. The first side wall 321 and the second side wall 322 are arranged back to back in the first direction. The first side wall 321 faces the roller brush 200, and the second side wall 322 faces away from the roller brush 200. Along the first direction, the maximum length of the convex portion 320 is less than the maximum length of the first tooth portion 310. Regarding the actual orientation of the first direction, it should be noted that, by way of example, in some embodiments, the first direction may be the Figure 8 front-back direction in

[0043] Specifically, the rotation direction of the roller brush 200 can be referred to Figure 6The direction of the arrow in [description]. When the rotating brush 200 rotates, the rotating brush 200 drives the brush strip 220 to rotate towards the convex part 320. It can be understood that the brush strip 220 impacts the convex part 320 head-on. Moreover, when the rotating brush 200 rotates, a centrifugal force will be generated, which can cause the hairs in the brush strip 220 to be thrown out, facilitating the card slot 323 to hook the hairs. Since the second side wall 322 faces away from the rotating brush 200, when the brush strip 220 passes through the card slot 323, the second side wall 322 can block the hairs. As the rotating brush 200 continues to rotate, the convex part 320 can pull the hairs out of the rotating brush 200, and the convex part 320 can also break the hairs, causing the hairs to separate from the rotating brush 200. Then, the brush strip 220 will enter the groove 311, and the first tooth part 310 can comb the brush strip 220 to further clean the hair debris in the brush strip 220, making it difficult for the hair debris to rotate with the rotating brush 200. Also, the top end of the brush strip 220 can contact the bottom wall 3112. At this time, due to the continuous rotation of the rotating brush 200, the top end of the brush strip 220 will rub against the bottom wall 3112, and the bottom wall 3112 can scrape off the debris wound around the top end of the brush strip 220. Or, there can also be a small gap between the brush strip 220 and the bottom wall 3112, and the debris wound around the top end of the brush strip 220 will directly rub against the bottom wall 3112 of the groove 311. The advantage of this setting is that when there is no debris wound around the top end of the brush strip 220, the brush strip 220 does not contact the bottom wall 3112, which can reduce noise. Additionally, the groove 311 also has the function of avoiding the brush strip 220, which can reduce the noise generated by the direct impact between the brush strip 220 and the comb tooth structure 300.

[0044] It should be noted that the embodiment of the present invention also provides a cleaning device, which includes the floor brush assembly of the above embodiment. The cleaning device can be a device such as a mite remover, a floor sweeping robot, or a vacuum cleaner.

[0045] Referring to Figure 3 and Figure 5 As shown in [references], in some embodiments, a dust collection chamber and a dust suction channel 130 are provided inside the cleaning device. The dust suction channel 130 communicates with the rotating brush chamber 110 and the dust collection chamber. A blower is also provided inside the cleaning device. The blower can generate negative pressure to suck the external dust and garbage from the opening 120 into the dust collection chamber. The external dust and garbage pass through the opening 120, the rotating brush chamber 110, and the dust suction channel 130 in sequence and reach the dust collection chamber. When the comb tooth structure 300 hooks the hair and other debris in the rotating brush 200, as the rotating brush 200 continues to rotate, the hair and other debris will gradually separate from the rotating brush 200. Then, these hair debris are sucked into the dust collection chamber under the action of the blower suction force, thus completing the automatic cleaning of the hair debris wound around the rotating brush 200.

[0046] Referring to Figure 3 and Figure 5As shown, specifically, the first tooth portion 310 is located at the junction of the roller brush chamber 110 and the dust suction channel 130, and the second side wall 322 of the protrusion 320 is arranged toward the dust suction channel 130. Since the protrusion 320 will hook the hair in the roller brush 200, the protrusion 320 will pull out the hair in the roller brush 200 and let the hair separate from the roller brush 200. At this time, due to the negative pressure generated by the fan in the cleaning device, the dust suction channel 130 will generate suction, which can make the hair hooked at the second side wall 322 completely separate from the roller brush 200. The hair will be directly sucked into the dust suction channel 130 and finally enter the dust collecting chamber, so that the hair is not easy to fall from the opening 120 to the outside of the shell 100, thereby avoiding polluting the external environment.

[0047] In some embodiments, the minimum distance between the brush strip 220 and the bottom wall 3112 is less than or equal to 3 mm. This configuration allows the brush strip 220 to be closer to the bottom wall 3112 of the groove 311, allowing the brush strip 220 to contact the bottom wall 3112, or allowing the distance between the brush strip 220 and the bottom wall 3112 to be smaller.

[0048] Reference Figure 7 As shown, specifically, the maximum distance between the bottom wall 3112 and the axis of the roller body 210 is L2, and L2 can also be understood as the maximum distance between the first tooth portion 310 and the axis of the roller body 210. The maximum distance between the brush strip 220 and the axis of the roller body 210 is L3. When L2 is greater than L3, there is a gap between the brush strip 220 and the bottom wall 3112. When L2 is less than or equal to L3, the brush strip 220 is in contact with the bottom wall 3112. The minimum distance between the brush strip 220 and the bottom wall 3112 is L4, and L4 satisfies: L4=L2-L3≤3mm. Such a setting can ensure that the distance between the brush strip 220 and the bottom wall 3112 is small, which is conducive to the bottom wall 3112 to remove the debris entangled at the top position of the brush strip 220, and at the same time, it can minimize the noise generated by the friction between the brush strip 220 and the bottom wall 3112. In some embodiments, due to manufacturing tolerances, the lengths of the plurality of brush strips 220 are different, so that some of the brush strips 220 may be in contact with the bottom wall 3112 while other parts of the brush strips 220 may be spaced from the bottom wall 3112 .

[0049] Reference Figure 6 and Figure 7 As shown, in some embodiments, the maximum distance between the brush strip 220 and the axis of the roller body 210 is L3, the minimum distance between the convex portion 320 and the axis of the roller body 210 is L1, and L3 is greater than L1. The top of the brush strip 220 is positioned above the convex portion 320 to ensure that the convex portion 320 can better hook the hair at the root of the brush strip 220, thereby improving the cleaning effect.

[0050] Reference Figure 9As shown, in some embodiments, the first tooth portion 310 includes a third side wall 312 and a fourth side wall 313. The third side wall 312 and the fourth side wall 313 are connected to each other, and an included angle is formed between the third side wall 312 and the fourth side wall 313. The third side wall 312 faces the rotary brush 200, and the convex portion 320 is disposed on the fourth side wall 313. In some embodiments, the first tooth portion 310 is located at the rear side of the rotary brush 200. The third side wall 312 extends in the up-and-down direction, the fourth side wall 313 extends in the front-and-back direction, the third side wall 312 and the fourth side wall 313 are perpendicular to each other, the fourth side wall 313 is disposed downward, the upper end of the third side wall 312 is connected to the inner wall of the rotary brush cavity 110, the lower end of the third side wall 312 is connected to one end of the fourth side wall 313, and the other end of the fourth side wall 313 is connected to the inner wall of the rotary brush cavity 110. Along the front-and-back direction, the length of the first tooth portion 310 gradually increases from top to bottom, which can be understood as the distance between the third side wall 312 and the bottom wall 3112 gradually increases from top to bottom. With such a setting, the shape of the first tooth portion 310 is relatively regular, and the structure of the first tooth portion 310 can be manufactured more conveniently. In addition, compared with the case where the first tooth portion 310 is rectangular, when the first tooth portion 310 is rectangular, when the rotary brush 200 rotates, the hair is likely to move upward along the side wall of the first tooth portion 310 and get stuck at the rib position of the first tooth portion 310. In this embodiment, however, the horizontally extending fourth side wall 313 can block the hair, preventing the hair from moving upward and making it difficult for the hair to get stuck at the rib position of the first tooth portion 310.

[0051] In some other embodiments, the first tooth portion 310 may also be located at the front side or the upper side of the rotary brush 200. It should be noted that when the first tooth portion 310 is located at the front side of the rotary brush 200, the convex portion 320 protrudes from the upper side of the first tooth portion 310. When the first tooth portion 310 is located at the upper side of the rotary brush 200, the third side wall 312 extends in the horizontal direction, and the fourth side wall 313 extends in the up-and-down direction.

[0052] Refer to Figure 8 As shown, in some embodiments, the bottom wall 3112 can be configured as an arc wall. The bottom wall 3112 is arranged around the axis of the roller body 210, so that the cross-section of the first tooth portion 310 is in a fan shape. With such a setting, the movement trajectory of the bottom wall 3112 can be more matched with that of the brush strip 220, which is beneficial for the bottom wall 3112 to remove the debris at the top position of the brush strip 220.

[0053] Refer to Figure 9As shown, in some embodiments, the length of the third side wall 312 in the up-down direction is greater than the length of the fourth side wall 313 in the front-to-back direction, thereby increasing the length of the first tooth portion 310 in the up-down direction and improving the structural strength of the first tooth portion 310. At the same time, the length of the first tooth portion 310 in the front-to-back direction is moderate, which will not cause the first tooth portion 310 to be too close to the roller brush 200 and generate loud noise, and also ensure that the roller brush 200 can rotate smoothly.

[0054] It is understandable that, referring to Figure 9 As shown, in some embodiments, along the front-to-back direction, the length of the protrusion 320 is less than the length of the first tooth portion 310. It can be understood that a groove 323 is formed at the connection between the protrusion 320 and the fourth side wall 313, and the groove 323 is defined between the second side wall 322 and the fourth side wall 313. The second side wall 322 and the fourth side wall 313 are perpendicular to each other. It can also be understood that a step surface is defined between the second side wall 322 and the fourth side wall 313. When the protrusion 320 hooks the hair, the hair is stuck in the groove 323 or the step surface, making it difficult for the hair to fall off the protrusion 320, which is beneficial for the protrusion 320 to pull out the hair in the roller brush 200, thereby improving the cleaning effect.

[0055] Reference Figure 6 and Figure 9 As shown, in some embodiments, the maximum distance between the second side wall 322 of the protrusion 320 and the axis of the roller body 210 is L1, and the maximum distance between the first tooth portion 310 and the axis of the roller body 210 is L2. L2 can be understood as the maximum distance between the bottom wall 3112 and the axis of the roller body 210, and L2 is greater than L1. This arrangement allows the protrusion 320 to be positioned closer to the brush strip 220, allowing the protrusion 320 to penetrate into the root position of the first brush strip 220, which is beneficial for hooking out the hair at the root position.

[0056] Reference Figure 9 As shown, in some embodiments, the first side wall 321 and the third side wall 312 are both extended in the up-down direction, the third side wall 312 is located below the first side wall 321, and the first side wall 321 is flush with the third side wall 312. It can be understood that the side wall of the convex portion 320 facing the roller brush 200 is flush with the side wall of the first tooth portion 310 facing the roller brush 200. Such an arrangement allows the convex portion 320 to be located closer to the brush strip 220, so that the convex portion 320 can penetrate into the root position of the brush strip 220, and can hook out the hair entangled at the root position, thereby improving the effect of cleaning hair. In addition, such an arrangement can also facilitate the manufacture of the structure of the first tooth portion 310 and the convex portion 320. When the first tooth portion 310 and the convex portion 320 are manufactured by an integrated injection molding process, the structure of the first tooth portion 310 and the convex portion 320 can be easily demolded.

[0057] Reference Figure 1As shown, in some embodiments, the rotary brush 200 further includes a scraping strip 230. The scraping strip 230 is connected to the outer peripheral wall of the roller body 210. The scraping strip 230 can be understood as a leather strip or a rubber strip. The scraping strip 230 extends along the axial direction of the roller body 210, and the scraping strip 230 also extends along the radial direction of the roller body 210. The scraping strip 230 can scrape off the dust and garbage on the surface of the object to be cleaned, improving the cleaning effect. It is difficult for hair to entangle on the scraping strip 230. Along the circumferential direction of the roller body 210, the scraping strip 230 and the brush strip 220 are arranged at intervals. The scraping strip 230 can support the hair, making it difficult for the hair to entangle at the root position of the brush strip 220.

[0058] Referring to Figure 2 and Figure 6 As shown, in some embodiments, the comb tooth structure 300 further includes a plurality of second tooth portions 330. The plurality of second tooth portions 330 are arranged at intervals along the axis of the roller body 210. The second tooth portions 330 extend in the up and down direction. The second tooth portions 330 protrude from the inner wall of the rotary brush cavity 110, and the lower ends of the second tooth portions 330 face the rotary brush 200. Along the circumferential direction of the rotary brush 200, the second tooth portions 330 and the first tooth portions 310 are arranged at intervals. It can also be understood that the first tooth portions 310 and the second tooth portions 330 are two rows of tooth portion structures arranged separately, and the second tooth portions 330 are located above the first tooth portions 310. In this embodiment, by providing two rows of tooth portion structures, when the rotary brush 200 rotates, the brush strip 220 will sequentially sweep over the first tooth portions 310 and the second tooth portions 330, thereby scraping off the hair and sundries entangled on the rotary brush 200, which can improve the cleaning effect on the rotary brush 200.

[0059] In some embodiments, along the axial direction of the roller body 210, the plurality of first tooth portions 310 and the plurality of second tooth portions 330 are arranged staggeredly. It can be understood that, viewed from the side, the position of the second tooth portion 330 corresponds to the position of the groove 311 between two adjacent first tooth portions 310. The plurality of first tooth portions 310 and the plurality of second tooth portions 330 are arranged alternately, but the first tooth portions 310 and the second tooth portions 330 are spaced apart along the circumferential direction of the roller body 210. Such an arrangement can more comprehensively clean the hair and sundries entangled in the rotary brush 200.

[0060] In some embodiments, the structure of the second tooth portion 330 can be the same as that of the first tooth portion 310. The convex portion 320 of the above embodiment can be provided at the lower end of the second tooth portion 330, so that a card slot 323 is formed between the convex portion 320 and the lower end surface of the second tooth portion 330. The card slot 323 can hook the hair entangled in the rotary brush 200, improving the cleaning effect.

[0061] Referring to Figure 8As shown, in some embodiments, the inner wall of the roller brush cavity 110 includes a first arc wall 111 and a second arc wall 112. The first arc wall 111 and the second arc wall 112 are arranged around the axis of the roller body 210 and are connected to each other. The center of the first arc wall 111 is the same as that of the second arc wall 112. The inner diameter of the first arc wall 111 is larger than that of the second arc wall 112. The second tooth portion 330 protrudes and is formed on the first arc wall 111, and the first tooth portion 310 protrudes and is formed on the second arc wall 112. A part of the structure of the second arc wall 112 is configured as the bottom wall 3112. In this embodiment, the shapes of the first arc wall 111 and the second arc wall 112 are relatively matched with the shape of the roller brush 200, which can enable the roller brush 200 to make full use of the space of the roller brush cavity 110. Moreover, since the inner diameter of the second arc wall 112 is smaller, the second arc wall 112 is closer to the roller brush 200 than the first arc wall 111. There is a gap between the first arc wall 111 and the brush strip 220, avoiding contact with the brush strip 220 and generating excessive noise. There is a relatively small gap between the second arc wall 112 and the brush strip 220, or, when the second arc wall 112 contacts the brush strip 220, the second arc wall 112 will rub against the debris at the top of the brush strip 220, which can remove the debris at the top of the brush strip 220 and improve the cleaning effect.

[0062] Referring to Figure 8 As shown, in some embodiments, the upper end of the third side wall 312 of the first tooth portion 310 is connected to the upper end of the second arc wall 112, and the end of the fourth side wall 313 of the first tooth portion 310 far from the third side wall 312 is connected to the lower end of the second arc wall 112, such that the length of the first tooth portion 310 in the front-rear direction is related to the arc length of the second arc wall 112. The arc length of the first arc wall 111 is greater than that of the second arc wall 112. It can also be understood that the area of the first arc wall 111 is greater than that of the second arc wall 112. By setting the arc length of the second arc wall 112 to be smaller, the contact area between the second arc wall 112 and the brush strip 220 is smaller, which can reduce noise. At the same time, the first tooth portion 310 will not be too close to the roller brush 200, which can reduce the noise generated by the contact between the brush strip 220 and the first tooth portion 310.

[0063] Referring to Figure 2 、 Figure 10 and Figure 11As shown, in some embodiments, the comb tooth structure 300 includes a reinforcing rib 340. The upper end of the reinforcing rib 340 is connected to the inner wall of the roller brush cavity 110. The reinforcing rib 340 is arranged along the axial direction of the roller body 210, and the reinforcing rib 340 extends in the up-and-down direction. A plurality of second tooth portions 330 are respectively connected to one side of the reinforcing rib 340. Along the up-and-down direction, the length of the second tooth portion 330 is greater than the length of the reinforcing rib 340. In this embodiment, by providing the reinforcing rib 340, the reinforcing rib 340 can improve the structural strength of the second tooth portion 330, making the second tooth portion 330 not easily breakable, and can play a protective role.

[0064] In some embodiments, along the up-and-down direction, the length of the second tooth portion 330 is greater than the length of the reinforcing rib 340. It can be understood that the lowest position of the second tooth portion 330 is lower than the lowest position of the reinforcing rib 340, so as to form a stepped surface at the connection between the second tooth portion 330 and the reinforcing rib 340. The stepped surface faces away from the roller brush 200. When the brush strip 220 sweeps across the second tooth portion 330, the hair in the brush strip 220 can be stuck at the position of the stepped surface, which is beneficial to hooking the hair and can improve the cleaning effect.

[0065] In some embodiments, the comb tooth structure 300 and the housing 100 are of an integral structure. The comb tooth structure 300 and the housing 100 can be formed by an integral injection molding process, which is relatively convenient to manufacture. In some other embodiments, the comb tooth structure 300 can be a separate part structure, and the comb tooth structure 300 can be connected to the inner wall of the roller brush cavity 110 by means of screws, buckles, welding, etc.

[0066] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention.

[0067] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If the first and second are described only for the purpose of distinguishing technical features, they cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0068] In the description of the present invention, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0069] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those of ordinary skill in the relevant art.

Claims

1. Floor brush assembly, characterized in that, Comprising: A housing with a roller brush cavity inside. A roller brush rotatably arranged in the roller brush cavity, the roller brush including a roller body and a plurality of brush strips, the plurality of brush strips being connected to the outer peripheral wall of the roller body and arranged at intervals along the circumferential direction of the roller body. A comb tooth structure including a plurality of first tooth portions arranged at intervals along the axial direction of the roller body, the first tooth portions protruding from the inner wall of the roller brush cavity, a groove being defined between two adjacent first tooth portions, the opening of the groove facing the roller brush, a convex portion being provided on the end face of the first tooth portion away from the inner wall of the roller brush cavity, a card slot being defined between the convex portion and the end face of the first tooth portion, the card slot being located on the side of the convex portion away from the roller brush, and the card slot and the groove being arranged in sequence along the rotation direction of the roller brush.

2. The floor brush assembly according to claim 1, characterized in that The inner wall of the groove includes a bottom wall facing the roller brush, and the minimum distance between the brush strip and the bottom wall is less than or equal to 3 mm.

3. The floor brush assembly according to claim 1, wherein The convex portion includes a first side wall and a second side wall arranged back to back with each other, the first side wall facing the roller brush, the second side wall facing away from the roller brush, the first tooth portion including a third side wall and a fourth side wall forming an angle with each other, the third side wall facing the roller brush, one end of the third side wall being connected to the inner wall of the roller brush cavity, the other end of the third side wall being connected to one end of the fourth side wall, the other end of the fourth side wall being connected to the inner wall of the roller brush cavity, the convex portion protruding from the fourth side wall, and the card slot being defined between the second side wall and the fourth side wall.

4. The floor brush assembly according to claim 3, wherein, The third side wall is arranged in the up and down direction, the fourth side wall is arranged in the horizontal direction, and the length of the third side wall is greater than the length of the fourth side wall.

5. The floor brush assembly according to claim 3, wherein The maximum distance between the second side wall and the axis of the roller body is less than the maximum distance between the first tooth portion and the axis of the roller body.

6. The floor brush assembly according to claim 3, characterized in that The first side wall is flush with the third side wall.

7. The floor brush assembly according to claim 1, characterized in that, The comb tooth structure further includes a plurality of second tooth portions arranged at intervals along the axial direction of the roller body, the second tooth portions being connected to the inner wall of the roller brush cavity, and along the circumferential direction of the roller body, the second tooth portions and the first tooth portions being arranged at intervals and configured such that when the roller brush rotates, the brush strips sequentially pass through the first tooth portions and the second tooth portions.

8. The floor brush assembly according to claim 7, characterized in that, The inner wall of the roller brush cavity includes a first arc wall and a second arc wall arranged around the axis of the roller body and connected to each other, the first arc wall and the second arc wall being arranged along the circumferential direction of the roller body, the inner diameter of the first arc wall being greater than the inner diameter of the second arc wall, there being a spacing between the first arc wall and the brush strip, the second tooth portions protruding from the first arc wall, and the first tooth portions protruding from the second arc wall.

9. The floor brush assembly according to claim 7, wherein, The comb tooth structure includes a reinforcing rib protruding from the inner wall of the roller brush cavity and arranged along the axial direction of the roller body, and the plurality of second tooth portions are respectively connected to the reinforcing rib.

10. Cleaning device, characterized in that, Including the floor brush assembly according to any one of claims 1 to 9.

11. The cleaning device according to claim 10, characterized in that, The cleaning device is provided with a dust suction channel and a dust collection chamber. The dust suction channel communicates the roller brush chamber with the dust collection chamber. The first tooth portion is located at the junction of the roller brush chamber and the dust suction channel, and the side of the convex portion facing away from the roller brush faces the dust suction channel.

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