Hair cutting rolling brush and surface cleaning device

Abstract

The invention provides a bristle cutting rolling brush which comprises a cleaning roller (1), a matching recess (2) is formed in the circumferential portion, around the axial direction of the cleaning roller (1), of the cleaning roller (1), a bristle cutting assembly (3) is installed in the matching recess (2), the bristle cutting assembly (3) comprises a bristle cutting portion (4), and the bristle cutting portion (4) makes up the gap of the matching recess (2) to form a complete circumferential cleaning surface (5) of the circumferential portion. The hair cutting assembly (3) is provided with a movable blade (7) arranged in the axial direction, a connecting part (8) of the movable blade (7) is connected with a reciprocating driving structure (6) in the cleaning roller (1), the reciprocating driving structure (6) is used for driving the movable blade (7) to reciprocate in the axial direction, and at least part of first hair cutting teeth (9) of the movable blade (7) is exposed on the circumferential cleaning surface (5) where the hair cutting part (4) is located. The hair cutting rolling brush realizes a hair cutting function and solves the problem of wound hair; the invention further provides a surface cleaning device which adopts the bristle cutting rolling brush.

Description

Technical Field

[0001] The invention relates to the technical field of surface cleaning devices, in particular to a hair-cutting roller brush and a surface cleaning device. Background Art

[0002] The surface cleaning devices referred to in this disclosure include vacuum cleaners, floor scrubbers, and robot vacuums. When a roller brush is installed in a surface cleaning device, it is beneficial for cleaning the surface being cleaned. The roller brush is mainly composed of a cleaning roller, and the axis of the cleaning roller is generally arranged transversely to the moving cleaning direction of the surface cleaning device. The cleaning roller rotates around the axis, thereby efficiently cleaning the floor when the surface cleaning device moves forward or backward.

[0003] However, during the cleaning process, the cleaning roller will be entangled with hair, and the entangled hair affects the performance of the cleaning roller. The entangled hair needs to be processed. If it is not processed, as the hair becomes more entangled, the roller brush can only be replaced to restore the cleaning performance. Therefore, how to deal with the entangled hair is of great significance to the cleaning performance. In order to solve the above-mentioned problems, various technical solutions for dealing with entangled hair have been proposed in the prior art.

[0004] The present disclosure proposes a new hair-cutting roller brush to achieve the hair-cutting function, thereby solving the problem of entangled hair. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defects of the prior art and propose a hair-cutting roller brush to achieve the hair-cutting function and solve the problem of entangled hair; and also propose a surface cleaning device using the aforementioned hair-cutting roller brush.

[0006] Compared with the prior art, the present invention proposes a hair cutting roller brush, comprising a cleaning roller, a circumferential portion of the cleaning roller surrounding its axial direction is provided with a mating recess, a hair cutting assembly is installed in the mating recess, the hair cutting assembly includes a hair cutting portion, the hair cutting portion fills the gap in the mating recess to form a complete circumferential cleaning surface of the circumferential portion, a reciprocating drive structure is installed in the cleaning roller, the hair cutting assembly is provided with a movable blade arranged along the axial direction, the connecting portion of the movable blade is connected to the reciprocating drive structure, the reciprocating drive structure is used to drive the movable blade to reciprocate along the axial direction, the movable blade is provided with a first hair cutting tooth, and the first hair cutting tooth is at least partially exposed to the circumferential cleaning surface where the hair cutting portion is located.

[0007] After adopting the above structure, compared with the prior art, the present invention has the following advantages:

[0008] The present disclosure realizes the hair cutting function through improvement and solves the problem of entangled hair. Moreover, since the circumferential portion of the cleaning roller surrounding its axial direction is provided with a matching recess, a hair cutting assembly is installed in the matching recess, and the hair cutting assembly includes a hair cutting portion. The hair cutting portion fills the gap of the matching recess to form a complete circumferential cleaning surface of the circumferential portion. Therefore, on the one hand, the flexibility of the setting position of the hair cutting assembly is improved. It can be set at the corresponding position of the circumferential cleaning surface as needed, for example, it can be set at the axial center position of the circumferential cleaning surface, but the complete circumferential cleaning surface can be retained in other parts of the matching recess. In addition, the number of hair cutting assemblies set can be one or more. On the other hand, it is convenient to use a cleaning roller with a cylindrical integrated structure to realize the hair cutting function. The cleaning roller with a cylindrical integrated structure is not only efficient to produce and manufacture, and does not require splicing to form a cleaning roller, but also provides a large area of ​​complete circumferential cleaning surface, reducing the gap generated by splicing the cleaning roller. After the hair cutting assembly is installed in the matching recess, the cleaning roller with a cylindrical integrated structure can have a hair cutting function under the drive of the reciprocating drive structure.

[0009] In some embodiments, the hair cutting portion is arranged at the center of the circumferential cleaning surface of the cleaning roller, and the circumferential cleaning surface is provided with a collecting structure, and the part of the collecting structure corresponding to the position of the hair cutting portion extends toward the hair cutting portion.

[0010] In some embodiments, the hair cutting portion is provided with a hair collecting groove extending along the axial direction, and the hair collecting groove is provided with a hair outlet on both sides of the movable blade.

[0011] In some embodiments, the axial length of the hair exit port is equal to or greater than the axial length of the hair cutting portion.

[0012] In some embodiments, the hair collecting groove further comprises an extended groove portion extending along the circumference of the circumferential portion, and the two extended groove portions are both provided on the circumferential portion and located on both sides of the hair cutting portion in the circumferential direction.

[0013] In some embodiments, the hair cutting portion is provided with comb teeth on one side or both sides of the first hair cutting teeth, and the comb teeth are used to guide the hair to the area where the first hair cutting teeth are located.

[0014] In some embodiments, when comb teeth portions are provided on both sides, the comb teeth in the comb teeth portions are aligned with each other, and the receiving grooves formed between adjacent comb teeth are also aligned with each other.

[0015] In some embodiments, the axial dimensions of the comb teeth of the comb portion are set so that the shadow of the first hair cutting tooth is hidden on the side of the comb teeth facing the slit, so that the accommodating groove formed between adjacent comb teeth is not blocked by the first hair cutting tooth.

[0016] In some embodiments, the hair cutting assembly further includes an extension portion extending from one end of the hair cutting portion toward one side of the reciprocating drive structure, the movable blade extends toward the extension portion, and a connecting portion is provided at the position of the extension portion; accordingly, the recess adaptively extends to install the extension portion.

[0017] In some embodiments, the extension portion is provided with a mounting groove for mounting the guide cleaning sheet.

[0018] In some embodiments, the matching recess is configured as a blind hole, a connecting hole is provided in the blind hole, and the connecting portion and the reciprocating drive structure are connected through the connecting hole.

[0019] In some embodiments, the hair cutting assembly further includes an extension portion extending from one end of the hair cutting portion toward one side of the reciprocating drive structure, the movable blade extends toward the extension portion, and a connecting portion is provided at the position of the extension portion; accordingly, the matching recess is adaptively extended to install the extension portion; a connecting hole is provided at the bottom of the blind hole, the connecting hole is located below the extension portion, and the connecting hole and the hair cutting portion are staggered with each other along the axial direction.

[0020] In some embodiments, the mating recess is sealingly connected to the hair cutting assembly.

[0021] In some embodiments, a dynamic balancing weight is further included, and the dynamic balancing weight is installed in the cleaning roller.

[0022] In some embodiments, there are multiple matching recesses, and correspondingly, there are also multiple hair cutting components.

[0023] In some embodiments, there are two hair cutting assemblies, which are evenly distributed along the circumference of the circumferential cleaning surface.

[0024] In some embodiments, the cleaning roller has a cylindrical integral structure.

[0025] In some embodiments, when the cleaning roller is integrally formed, a matching recess is also integrally formed.

[0026] In some embodiments, it also includes a support portion provided at one end of the cleaning roller, the support portion is rotatably connected to one end of the cleaning roller, and the other end of the cleaning roller is used to connect to the driving portion of the surface cleaning device, and the driving portion is used to drive the cleaning roller to rotate around the support portion.

[0027] In some embodiments, the reciprocating drive structure is mounted on a support.

[0028] In some embodiments, a bearing is provided between the cleaning roller and the support portion, and / or a bearing is provided between the reciprocating drive structure and the support portion, and the bearing is used to support the rotational connection of the cleaning roller.

[0029] In some embodiments, a fixed blade is further included which is arranged adjacent to or in contact with the moving blade. The fixed blade is provided with second cutting teeth. When the moving blade reciprocates axially, the first cutting teeth reciprocate axially relative to the second cutting teeth to cut the hair. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The utility model is a three-dimensional schematic diagram of a hair-cutting roller brush.

[0031] Figure 2 The figure is a three-dimensional schematic diagram of a hair-cutting roller brush with the guide cleaning sheet removed.

[0032] Figure 3 This is a three-dimensional schematic diagram of a hair-cutting roller brush after the hair-cutting component is further removed.

[0033] Figure 4 for Figure 3 Schematic top view of .

[0034] Figure 5 It is the AA section view.

[0035] Figure 6 for Figure 2 Schematic top view of .

[0036] Figure 7 It is a BB section view.

[0037] Figure 8 The figure is a three-dimensional schematic diagram of a hair cutting component from an outside perspective.

[0038] Figure 9 The figure is a three-dimensional schematic diagram of a hair cutting component from the inner side.

[0039] Figure 10 The figure is a three-dimensional schematic diagram of a hair cutting component after removing the upper cover plate.

[0040] Figure 11 The figure is a three-dimensional schematic diagram of a hair cutting component after removing the lower cover.

[0041] Figure 12 It is a three-dimensional schematic diagram of a movable blade.

[0042] Figure 13 It is a three-dimensional schematic diagram of a fixed blade.

[0043] Figure 14 It is a three-dimensional schematic diagram of the connection between a connecting part and a reciprocating drive structure.

[0044] Figure 15 It is a three-dimensional schematic diagram of another type of cutting roller brush.

[0045] Figure 16 It is a three-dimensional schematic diagram of another connection part connected to the reciprocating drive structure.

[0046] Figure 17 It is a three-dimensional schematic diagram of a lower cover.

[0047] Figure 18 It is a three-dimensional schematic diagram of an upper cover.

[0048] Explanation of the reference numerals: 1-cleaning roller, 2-matching recess, 3-hair cutting assembly, 4-hair cutting portion, 5-circumferential cleaning surface, 6-reciprocating drive structure, 7-moving blade, 8-connecting portion, 9-first hair cutting tooth, 10-guide cleaning sheet, 11-hair collecting groove, 12-hair outlet, 13-extension groove portion, 14-comb tooth portion, 15-comb tooth, 16-accommodating groove, 17-extension portion, 18-mounting groove, 19-connecting hole, 20-dynamic balancing block, 21-support portion, 22-drive connecting portion, 23-bearing, 24-fixed blade, 25-second hair cutting tooth, 26-ball, 27-upper cover, 28-lower cover, 29-lining, 30-guide rod, 31-guide hole, 32-bushing, 33-side. DETAILED DESCRIPTION

[0049] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The embodiments described below are for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0050] like Figures 1 to 14 The figure shows a hair-cutting roller brush, which is provided with a hair-cutting component 3. Preferably, the cleaning roller 1 adopts a cylindrical integrated structure, for example, a cylindrical integrated structure manufactured by plastic integrated molding, silicone integrated molding, rubber integrated molding and other processes.

[0051] In some embodiments, as Figure 3 As shown, when the cleaning roller 1 is integrally formed, the matching recess 2 is also integrally formed. In this way, not only is the manufacturing efficiency high, but the matching recess 2 is also integral, and the matching recess 2 is not processed later on the cylindrical integral structure.

[0052] like Figure 2 、 3 As shown, the hair cutting assembly 3 is installed with the matching recess 2, and the hair cutting portion 4 of the hair cutting assembly 3 fills the gap of the matching recess 2 to form a complete circumferential cleaning surface 5 of the circumferential portion.

[0053] like Figure 1 、 2As shown in , 6, 7, and 14, a reciprocating drive structure 6 is installed in the cleaning roller 1, and the hair cutting component 3 is provided with a movable blade 7 arranged in the axial direction. The connecting portion 8 of the movable blade 7 is connected to the reciprocating drive structure 6. The reciprocating drive structure 6 is used to drive the movable blade 7 to reciprocate in the axial direction. The movable blade 7 is provided with a first hair cutting tooth 9, and at least a part of the first hair cutting tooth 9 is exposed to the circumferential cleaning surface 5 where the hair cutting portion 4 is located.

[0054] In some embodiments, as Figure 5 、 7 As shown, the cleaning roller 1 has two ends, one end is rotatably connected to the support part 21, and the other end is provided with a drive connection part 22. The drive connection part 22 is used to connect the drive part. In this example, the drive part is arranged so that the drive part can be sleeved in the drive connection part 22. The drive part is arranged in the surface cleaning device. The drive part not only serves as a power source, but also has a certain circumferential support effect on the cleaning roller 1. When the drive connection part 22 is sleeved and connected to the drive part, and the support part 21 is installed in the surface cleaning device, the hair-cutting roller brush is well installed in the surface cleaning device. When the drive part rotates, the cleaning roller 1 is driven to rotate around the support part 21 to perform cleaning work. The surface cleaning device may be installed with one hair-cutting roller brush, or it may be installed with two or more hair-cutting roller brushes. The number is determined according to the design requirements of the surface cleaning device.

[0055] The hair-cutting roller brush can be set at a location such as a floor brush or the suction port of a sweeping robot. As the driving unit rotates, the driving unit will drive the cleaning roller 1 to rotate, and the hair-cutting component 3 will also rotate with the cleaning roller 1. Figure 5 、 7 As shown, the reciprocating drive structure 6 is exemplified by an annular guide groove, which is mounted on the support portion 21, supported and fixed by the support portion 21, and the connecting portion 8 is guided and cooperated with the annular guide groove. Due to the axial reciprocating guidance of the annular guide groove, the movable blade 7 can be driven axially and reciprocatingly.

[0056] In order to reduce friction, a ball 26 is provided at each axial end of the connecting portion 8. The ball 26 is in sliding engagement with the side wall of the annular guide groove, thereby significantly reducing friction.

[0057] The reciprocating drive structure 6 may also be other structures, such as an electric motor, a gear transmission, an electric telescopic rod, etc. Any suitable reciprocating drive structure 6 may be adopted and will not be described in detail here.

[0058] In some embodiments, as Figure 5 、 7 As shown in FIG. 14 , in order to ensure the rotational balance of the cleaning roller 1 , a dynamic balancing weight 20 is further included. The dynamic balancing weight 20 is installed in the cleaning roller 1 .

[0059] In some embodiments, as Figure 5 、 7 As shown in Figures 14, in order to better support the cleaning roller 1 in rotation, a bearing 23 is provided between the cleaning roller 1 and the support portion 21, and / or a bearing 23 is provided between the reciprocating drive structure 6 and the support portion 21, and the bearing 23 is used to support the cleaning roller 1 in rotation.

[0060] In some embodiments, as Figure 5 、 7 As shown, a lining 29 is provided on the inner periphery of the cleaning roller 1. The lining 29 is used to connect with the bearing 23. The cleaning roller 1 is rotatably supported by the lining 29, so that the thinner cleaning roller 1 is better supported, which is beneficial for cleaning.

[0061] Likewise, an inner lining 29 may be provided on the driving connection portion 22 , and the inner lining 29 may be used to sleeve the front end of the driving portion.

[0062] The lining 29 may be an independent part or a part formed integrally with the cleaning roller 1 .

[0063] In some embodiments, as Figure 1 As shown, the hair cutting section 4 is arranged at the center of the circumferential cleaning surface 5 of the cleaning roller 1. The circumferential cleaning surface 5 is provided with a collecting structure, and the portion of the collecting structure corresponding to the location of the hair cutting section 4 extends toward the hair cutting section 4. This is beneficial for guiding the hair toward the hair cutting section 4. On the other hand, the length of the hair cutting section 4 can be set shorter, and the hair on both sides is transported to the centrally located hair cutting section 4 through the guide cleaning sheet 10.

[0064] The collecting structure may be, for example, a guide cleaning sheet 10 provided on the circumferential cleaning surface 5 and guiding the cleaning surface from both sides to the central position. Other structures may also be used, such as double helical stripes.

[0065] In some embodiments, as Figure 1 、 2 As shown in Figures 3, 4, 6 and 8, the hair cutting portion 4 is provided with a hair collecting groove 11 extending in the axial direction, and the hair collecting groove 11 is provided with a hair outlet 12 on both sides of the movable blade 7. In this way, the hair can be better collected and cut.

[0066] Furthermore, the axial length of the hair outlet 12 is equal to or greater than the axial length of the hair cutting portion 4. This is beneficial for the hair to enter and exit.

[0067] In some embodiments, as Figure 1 、 2As shown in Figures 3, 4, and 6, the hair collecting groove 11 further includes an extension groove portion 13 extending along the circumference of the circumferential portion. The two extension groove portions 13 are both provided on the circumferential portion and located on both sides of the circumference of the hair cutting portion 4. This not only expands the range of the hair collecting groove 11, but also enables better collection and cutting of hair.

[0068] In this example, the two extended groove portions 13 and the portion of the hair collecting groove 11 located at the hair cutting portion 4 are connected together to form an arc-shaped collecting groove, and the arc curvature is preferably consistent with the arc curvature of the cleaning roller 1.

[0069] In some embodiments, as Figure 1 、 2 As shown in Figures 6, 8, and 14, the shearing assembly 3 further includes an extension portion 17 extending from one end of the shearing section 4 toward one side of the reciprocating drive structure 6. The movable blade 7 extends toward the extension portion 17, and a connecting portion 8 is provided at the location of the extension portion 17. Accordingly, the recess 2 adaptively extends to accommodate the extension portion 17. This helps reduce the degree of overhang of the reciprocating drive structure 6 relative to the support portion 21, especially when the shearing section 4 is centrally located.

[0070] Furthermore, the extension portion 17 is provided with a mounting groove 18 for mounting the guide cleaning sheet 10 , so that the guide cleaning sheet 10 can be extended to the hair cutting portion 4 as far as possible.

[0071] In humid environments, waterproof requirements are higher. In order to improve the waterproof performance, such as Figure 3 、 4 As shown, the mating recess 2 of the present disclosure is configured as a blind hole, in which a connecting hole 19 is provided. The connecting portion 8 and the reciprocating drive structure 6 are connected via the connecting hole 19. Thus, the connecting hole 19 can be relatively small, sufficient to meet the reciprocating displacement of the connecting portion 8. This reduces the amount of communication between the interior of the cleaning roller 1 and the exterior through the mating recess 2, preventing water from entering. Furthermore, this helps prevent dirt from entering the interior of the cleaning roller 1 through the mating recess 2, thus avoiding the accumulation of large amounts of dirt and grime.

[0072] In some embodiments, as Figure 1 、 2 As shown in Figures 6, 8, and 14, the shearing assembly 3 further includes an extension portion 17 extending from one end of the shearing portion 4 toward one side of the reciprocating drive structure 6. The movable blade 7 extends toward the extension portion 17, and a connecting portion 8 is provided at the location of the extension portion 17. Accordingly, the recess 2 adaptively extends to accommodate the extension portion 17. A connecting hole 19 is provided at the bottom of the blind hole, located below the extension portion 17. The connecting hole 19 and the shearing portion 4 are axially staggered. This makes it more difficult for water to enter, and dirt is also less likely to enter.

[0073] Furthermore, the recess 2 is sealed with the hair-cutting component 3. For example, a sealing fit, a sealing ring, a sealant, and other technical means are used to further enhance the waterproof and anti-fouling properties.

[0074] In some embodiments, as Figure 1 、 2 As shown in Figures 6, 7, 8 to 13, the housing of the shearing assembly 3 is composed of an axially arranged upper cover 27 and an axially arranged lower cover 28, and the movable blade 7 is movably accommodated between the upper cover 27 and the lower cover 28. For ease of installation, it is preferred that the connecting portion 8 is configured to extend from the surface of the shearing assembly 3, thereby facilitating guidance and cooperation with the annular guide groove. Of course, other structures are also possible, such as configuring the connecting portion 8 to be indented or flush with the surface of the shearing assembly 3.

[0075] The hair cutting component 3 may also have other structures. For example, the shell of the hair cutting component 3 is made into an integral body, and an accommodating cavity is provided in the integral body, and the accommodating cavity movably accommodates the movable blade 7. For example, the shell of the hair cutting component 3 is divided into two or more parts along the transverse direction, and these parts are spliced ​​into a complete shell along the axial direction. For example, the shell of the hair cutting component 3 is divided into two or more parts extending axially along the radial direction, and these parts are spliced ​​into a complete shell along the radial direction, thereby realizing the movable accommodation installation of the movable blade 7.

[0076] Any trimming assembly 3 defined in the present disclosure that can be mounted in the matching recess 2 may be used.

[0077] In some embodiments, as Figure 7 、 10 As shown in Figures 11, in order to better enable the reciprocating motion of the movable blade 7, the shearing assembly 3 is further equipped with a guide rod 30. Accordingly, the movable blade 7 is provided with a guide hole 31. The movable blade 7 is mounted on the guide rod 30 through the guide hole 31 and is guided by the guide rod 30. In order to prevent the guide rod 30 from being worn off, a wear-resistant bushing 32 is further provided to protect the guide rod 30.

[0078] In some embodiments, as Figure 1 、 2 As shown in Figures 6 and 8, the hair cutting portion 4 is provided with comb teeth 15 and 14 on one side or both sides of the first hair cutting teeth 9, and the comb teeth 15 and 14 are used to guide the hair to the area where the first hair cutting teeth 9 are located. In this way, it is beneficial to collect and cut the hair.

[0079] Furthermore, when the comb teeth 15 portions 14 are provided on both sides, the comb teeth 15 in the comb teeth 15 portions 14 are aligned with each other, and the receiving grooves 16 formed between adjacent comb teeth 15 are also aligned with each other. In this way, hair can be more easily entered into the area where the first hair cutting teeth 9 are located.

[0080] In some embodiments, as Figure 1 、2 As shown in Figures 6, 8, 17 and 18, the axial dimensions of the comb teeth 15 of the comb tooth portion 14 are set so that the first hair cutting teeth 9 are hidden at the side 33 of the comb teeth 15 facing the cutting seam, so that the accommodating grooves 16 formed between adjacent comb teeth 15 are not blocked by the first hair cutting teeth 9.

[0081] In some embodiments, as Figure 1 、 2 As shown in Figures 6, 8, 12, and 13, the blade 24 further includes a fixed blade 24 disposed adjacent to or in contact with the movable blade 7. The fixed blade 24 is provided with second hair-cutting teeth 25. When the movable blade 7 reciprocates axially, the first hair-cutting teeth 9 reciprocate axially relative to the second hair-cutting teeth 25 to cut hair. In this way, a better hair-cutting effect is achieved.

[0082] In some embodiments, there are multiple matching recesses 2, and correspondingly, there are multiple hair cutting components 3. This can further optimize the location and number of the hair cutting components 3 as needed.

[0083] In some embodiments, as Figure 15 、 16 As shown, there are two cutting assemblies 3, which are evenly distributed along the circumference of the circumferential cleaning surface 5. This not only increases the number of cutting assemblies 3 and has better cutting efficiency, but also achieves dynamic balance without the need for additional dynamic balancing blocks 20.

[0084] The present disclosure also provides a surface cleaning device, including a roller brush, wherein the roller brush adopts the cut-bristle roller brush described in the present disclosure. The surface cleaning device is, for example, a vacuum cleaner, a floor scrubber, a sweeping robot, etc.

[0085] When understanding the present disclosure, if necessary, the above structure can refer to other embodiments / appendices. Figure 1 And understand, no further elaboration here.

[0086] The above description is merely an illustrative embodiment of the present invention, and therefore any equivalent changes or modifications made according to the structure, features and principles described in the patent protection scope of the present invention are included in the patent protection scope of the present invention.

Claims

1. A hair-cutting roller brush, comprising a cleaning roller (1), characterized in that: The cleaning roller (1) is provided with a matching recess (2) in the circumferential portion around the axial direction thereof, and a hair cutting assembly (3) is installed in the matching recess (2). The hair cutting assembly (3) includes a hair cutting portion (4), and the hair cutting portion (4) makes up for the vacancy of the matching recess (2) to form a complete circumferential cleaning surface (5) of the circumferential portion. A reciprocating drive structure (6) is installed in the cleaning roller (1). The hair cutting assembly (3) is provided with a movable blade (7) arranged in the axial direction, and the connecting portion (8) of the movable blade (7) is connected to the reciprocating drive structure (6). The reciprocating drive structure (6) is used to drive the movable blade (7) to reciprocate in the axial direction. The movable blade (7) is provided with a first hair cutting tooth (9), and at least a part of the first hair cutting tooth (9) is exposed to the circumferential cleaning surface (5) where the hair cutting portion (4) is located.

2. The hair-cutting roller brush according to claim 1, characterized in that: The hair cutting portion (4) is arranged at the center of the circumferential cleaning surface (5) of the cleaning roller (1); the circumferential cleaning surface (5) is provided with a collecting structure; a portion of the collecting structure corresponding to the location of the hair cutting portion (4) is extended toward the hair cutting portion (4).

3. The hair-cutting roller brush according to claim 1 or 2, characterized in that: The hair cutting portion (4) is provided with a hair collecting groove (11) extending in the axial direction, and the hair collecting groove (11) is provided with hair outlets (12) on both sides of the movable blade (7).

4. The hair-cutting roller brush according to claim 3, characterized in that: The axial length of the hair outlet (12) is equal to or greater than the axial length of the hair cutting portion (4).

5. The hair-cutting roller brush according to claim 3, characterized in that: The hair collecting groove (11) further comprises an extension groove portion (13) extending along the circumference of the circumferential portion. The two extension groove portions (13) are both arranged on the circumferential portion and located on both sides of the circumference of the hair cutting portion (4).

6. The hair-cutting roller brush according to claim 1 or 2, characterized in that: The hair cutting part (4) is provided with a comb tooth (15) part (14) on one side or both sides of the first hair cutting tooth (9), and the comb tooth (15) part (14) is used to guide the hair to the area where the first hair cutting tooth (9) is located.

7. The hair-cutting roller brush according to claim 6, characterized in that: When comb teeth (15) parts (14) are provided on both sides, the comb teeth (15) in the comb teeth (15) parts (14) are aligned with each other, and the receiving grooves (16) formed between adjacent comb teeth (15) are also aligned with each other.

8. The hair-cutting roller brush according to claim 7, characterized in that: The axial dimensions of the comb teeth (15) of the comb teeth (15) portion (14) are set so that the first hair cutting teeth (9) are hidden at the side surface (33) of the comb teeth (15) facing the cutting seam, thereby preventing the accommodating grooves (16) formed between adjacent comb teeth (15) from being blocked by the first hair cutting teeth (9).

9. The hair-cutting roller brush according to claim 1 or 2, characterized in that: The hair cutting assembly (3) further comprises an extension portion (17) extending from one end of the hair cutting portion (4) toward one side of the reciprocating drive structure (6), the movable blade (7) extends toward the extension portion (17), and a connecting portion (8) is provided at the position of the extension portion (17); accordingly, the matching recess (2) is adaptively extended to install the extension portion (17).

10. The hair-cutting roller brush according to claim 9, characterized in that: The extension portion (17) is provided with a mounting groove (18), and the mounting groove (18) is used for mounting the guide cleaning sheet (10).

11. The hair-cutting roller brush according to claim 1, characterized in that: The matching recess (2) is configured as a blind hole, a connecting hole (19) is provided in the blind hole, and the connecting portion (8) and the reciprocating drive structure (6) are connected via the connecting hole (19).

12. The hair-cutting roller brush according to claim 10, characterized in that: The hair cutting assembly (3) further comprises an extension portion (17) extending from one end of the hair cutting portion (4) toward one side of the reciprocating drive structure (6), the movable blade (7) extending toward the extension portion (17), and a connecting portion (8) being provided at the position of the extension portion (17); correspondingly, the matching recess (2) is adaptively extended to install the extension portion (17); a connecting hole (19) is provided at the bottom of the blind hole, the connecting hole (19) being located below the extension portion (17), and the connecting hole (19) and the hair cutting portion (4) being staggered with each other along the axial direction.

13. The hair-cutting roller brush according to claim 1, 11 or 12, characterized in that: The matching recess (2) is sealedly connected to the hair cutting component (3).

14. The hair-cutting roller brush according to claim 1, characterized in that: It also comprises a dynamic balancing weight (20), which is installed in the cleaning roller (1).

15. The hair-cutting roller brush according to claim 1, characterized in that: There are a plurality of matching recesses (2), and correspondingly, there are also a plurality of hair cutting components (3).

16. The hair-cutting roller brush according to claim 2 or 15, characterized in that: There are two hair cutting components (3) which are evenly distributed along the circumference of the circumferential cleaning surface (5).

17. The hair-cutting roller brush according to claim 1, characterized in that: The cleaning roller (1) adopts a cylindrical integrated structure.

18. The hair-cutting roller brush according to claim 11 or 17, characterized in that: When the cleaning roller (1) is integrally formed, the matching recess (2) is also integrally formed.

19. The hair-cutting roller brush according to claim 1, characterized in that: The cleaning roller (1) further comprises a support portion (21) provided at one end of the cleaning roller (1), the support portion (21) being rotatably connected to one end of the cleaning roller (1), and the other end of the cleaning roller (1) being used for connecting to a driving portion of the surface cleaning device, the driving portion being used for driving the cleaning roller (1) to rotate around the support portion (21).

20. The hair-cutting roller brush according to claim 19, wherein: The reciprocating drive structure (6) is mounted on the support portion (21).

21. The hair-cutting roller brush according to claim 20, characterized in that: A bearing (23) is provided between the cleaning roller (1) and the support portion (21), and / or a bearing (23) is provided between the reciprocating drive structure (6) and the support portion (21), and the bearing (23) is used to support the cleaning roller (1) for rotational connection.

22. The hair-cutting roller brush according to claim 1, characterized in that: The invention also includes a fixed blade (24) arranged adjacent to or in contact with the movable blade (7). The fixed blade (24) is provided with a second hair-cutting tooth (25). When the movable blade (7) reciprocates axially, the first hair-cutting tooth (9) reciprocates axially relative to the second hair-cutting tooth (25) to cut hair.

23. A surface cleaning device comprising a roller brush, characterized in that: The roller brush adopts the cut-hair roller brush described in any one of claims 1 to 22.

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