An anti-tangling hair-cutting roller brush device

Abstract

This utility model belongs to the field of sweeping machine technology, specifically disclosing an anti-tangling hair-cutting roller brush device. It includes a frame, with a roller brush rotatably connected to the cleaning port of the frame. The roller brush has a cleaning zone, a hair-tangling zone, and a control zone arranged sequentially along its axial direction. The bristles in the cleaning zone are spirally distributed. The comb teeth in the hair-tangling zone are spaced apart to form comb grooves. A cam is rotatably connected inside the control zone. Inside the hair-tangling zone, a sliding shaft, a fixed blade, and a sliding blade are arranged along its axial direction. The fixed blade is fixed inside the roller brush. The sliding shaft presses against the cam and slides along the axial direction of the roller brush. The sliding blade is fixed on the sliding shaft and elastically connected to the roller brush. The cutting teeth of the sliding blade engage with the cutting teeth of the fixed blade. This utility model guides hair to the hair-tangling zone on one side of the roller brush by dividing the area, and uses the cam to drive the sliding shaft and the sliding blade to move, achieving close cutting by the two blades, effectively preventing hair tangling. Furthermore, its structure is simple, reducing manufacturing costs.

Description

Technical Field

[0001] This utility model belongs to the field of sweeping machine technology, and in particular relates to an anti-tangling hair cutting roller brush device. Background Technology

[0002] In today's fast-paced life, household cleaning appliances such as vacuum cleaners and robot vacuums are invaluable helpers in keeping the home clean and tidy, greatly reducing the burden of housework. As a core component of these appliances, the performance of the roller brush is crucial to both cleaning effectiveness and user experience.

[0003] Traditional roller brushes typically use a uniformly distributed bristle structure, which can achieve basic cleaning of common debris such as dust and crumbs through rotation. However, problems arise in scenarios with high hair volume, such as areas with frequent pet shedding or long-haired residents. Hair easily adheres to the bristles, constantly tangling and accumulating to form difficult-to-remove clumps. These clumps cause the bristles to lose elasticity, reducing their adhesion to the ground and cleaning power, significantly decreasing cleaning efficiency. A cleaning that could be completed in one pass may now require multiple repetitions, wasting time and energy and increasing costs. Moreover, clumps increase the frequency and difficulty of manual cleaning, making the process tedious and messy. If not cleaned promptly and thoroughly, the clumps will grow larger and larger, even causing the roller brush to jam, rendering the equipment inoperable, disrupting cleaning schedules, and potentially damaging critical components such as the drive motor, increasing repair costs and shortening the equipment's lifespan.

[0004] To solve the problem of hair tangling, roller brush devices on the market have undergone many improvements. A common design approach is to set the brush bristles in a V-shape, causing the hair to gather towards the center of the brush during rotation. Once the hair has gathered to a certain extent in the center, it is cut by blades located inside the brush, thus preventing excessive tangling.

[0005] However, this design presents several problems in practical applications. First, while concentrating the hair in the center achieves a visually concentrated effect, it lacks effective control over the hair entanglement process. As the hair from both ends gathers towards the center, friction and entanglement between them easily lead to further knots and clumps, forming denser and more difficult-to-handle clumps. These clumps occupy the effective working space of the roller brush bristles. The bristles, originally intended for sweeping dust and debris, are unable to fully contact the surface being cleaned, significantly reducing the roller brush's cleaning ability. Dust, debris, and other contaminants on the ground cannot be effectively removed, resulting in a substantial decrease in cleaning effectiveness. Furthermore, the method of using internal blades to cut the hair also has significant shortcomings. The limited internal space of the roller brush necessitates the inclusion of multiple blades and their driving mechanisms, complicating its internal structure. This complexity not only increases the manufacturing difficulty and cost of the roller brush but also reduces its reliability. Problems can easily arise in the coordinated operation of multiple blades; a malfunction in one blade can affect the normal operation of the entire cutting system. Moreover, the complex structure makes maintenance and blade replacement inconvenient, increasing user costs and maintenance difficulty.

[0006] Therefore, the inventors dedicated themselves to designing a roller brush device to solve the above problems. Utility Model Content

[0007] The purpose of this invention is to provide an anti-tangling hair cutting roller brush device that can guide hair to one side for cutting. This not only effectively prevents the problem of reduced cleaning efficiency caused by hair tangling in the roller brush, but also has a simple structure, reduces manufacturing costs, and improves the reliability of the roller brush.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] An anti-tangling hair-cutting roller brush device includes a frame, a roller brush rotatably connected to the cleaning port of the frame, and the roller brush having a cleaning zone, a hair entanglement zone, and a control zone arranged sequentially along its axial direction. The bristles of the cleaning zone are generally spirally distributed. The comb teeth of the hair entanglement zone are spaced apart to form comb grooves. A cam is rotatably connected inside the control zone. A sliding shaft, a fixed blade, and a sliding blade are arranged along its axial direction inside the hair entanglement zone. The fixed blade is fixed inside the roller brush. The sliding shaft abuts against the cam and slides along the axial direction of the roller brush. The sliding blade is fixed on the sliding shaft and elastically connected to the roller brush. The cutting teeth of the sliding blade engage with the cutting teeth of the fixed blade to stagger the cutting of the hair in the comb grooves.

[0010] As an improvement of the anti-tangling hair cutting roller brush device of this utility model, the inner wall of the roller brush is provided with a cutting groove at the position opposite to the comb teeth, the cutting groove is connected to the comb groove, and the shearing teeth and the cutting teeth are both located in the cutting groove.

[0011] As an improvement of the anti-tangling hair cutting roller brush device of this utility model, the sliding shaft is set off from the center of the roller brush, and the cam protrudes from the end face near the sliding shaft to form a protrusion, and the sliding shaft presses against the protrusion.

[0012] As an improvement of the anti-tangling hair cutting roller brush device of this utility model, the sliding blade is elastically connected to the roller brush by a spring, the spring is sleeved on the sliding shaft, the fixed end of the sliding blade is sleeved on the sliding shaft, and the sliding blade is located between the cam and the spring.

[0013] As an improvement of the anti-tangling hair cutting roller brush device of this utility model, the roller brush includes a cleaning brush, a combing roller and a gearbox. The combing roller is located between the cleaning brush and the gearbox. The cleaning brush, the combing roller and the gearbox are coaxially arranged and the three of them sequentially constitute the cleaning area, the hair tangling area and the control area.

[0014] As an improvement of the anti-tangling hair cutting roller brush device of this utility model, the end of the cleaning brush away from the gearbox is rotatably connected to the frame, and the end of the frame away from the gearbox is provided with a gear set, and the cleaning brush is controlled to rotate by the gear set.

[0015] As an improvement of the anti-tangling hair cutting roller brush device of this utility model, the combing roller includes two roller bodies, which overlap each other to form an inner cavity. The number of comb teeth is two rows, and the comb teeth in the same row are spaced apart along the axial direction of the cleaning brush. Each comb tooth spans two roller bodies.

[0016] As an improvement of the anti-tangling hair cutting roller brush device of this utility model, the gearbox includes a housing and a cover. The cover is placed on the housing to form a control cavity. The cam is located in the control cavity and is linked to the gearbox. The cover is located between the housing and the combing roller. The end of the sliding shaft away from the cleaning brush passes through the end face of the combing roller and the cover in sequence and extends into the control cavity.

[0017] As an improvement of the anti-tangling hair cutting roller brush device of this utility model, the inner wall of the box is provided with internal teeth forming a planetary carrier, a sun gear is rotatably connected inside the box, the cam is rotatably connected to the box cover, a planetary gear is rotatably connected to the end face of the cam away from the sliding shaft, and the sun gear is connected to the inner wall of the box through the planetary gear.

[0018] As an improvement of the anti-tangling hair cutting roller brush device of this utility model, an elastic baffle is provided inside the hair tangling area, and the sliding blade is located between the elastic baffle and the fixed blade. The free end of the elastic baffle elastically presses against the cutting end of the sliding blade.

[0019] Compared with existing technologies, the anti-tangling hair cutting roller brush device of this utility model has a cleaning zone, a hair tangling zone, and a control zone arranged sequentially along the axial direction of the roller brush. The cleaning zone uses spirally distributed bristles to guide the hair to the hair tangling zone on one side of the roller brush, where it is sequentially wrapped around the comb teeth to prevent hair from tangling and facilitate cutting. A cam is set in the control zone. By rotating the cam, the sliding shaft and the sliding blade slide back and forth along the axial direction of the roller brush, realizing the close contact and shearing of the sliding blade and the fixed blade, accurately cutting the hair in the comb groove and effectively preventing hair tangling. The entire device not only effectively prevents the problem of reduced cleaning efficiency caused by hair tangling in the roller brush, ensuring consistent cleaning effect, but also has a simpler structure, reducing complex mechanical parts and transmission structures, thereby reducing manufacturing costs. At the same time, the simple structure also reduces the probability of failure and significantly improves the reliability of the roller brush device. Attached image description:

[0020] Figure 1 This is a perspective view of the anti-tangling hair cutting roller brush device of this utility model;

[0021] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 This is a perspective view of the roller brush in this utility model;

[0023] Figure 4 yes Figure 3 Enlarged view of point B in the middle;

[0024] Figure 5 This is a partially enlarged cross-sectional view of the roller brush of this utility model;

[0025] Figure 6 This is another enlarged cross-sectional view of the roller brush of this utility model;

[0026] Figure 7 This is another enlarged cross-sectional view of the roller brush of this utility model;

[0027] Figure 8 This is an enlarged cross-sectional view of the combing roller of this utility model;

[0028] Figure 9 This is a three-dimensional exploded and enlarged view of the roller brush of this utility model;

[0029] Figure 10 This is a three-dimensional exploded and enlarged view of the combing roller of this utility model, as well as its two internal blades and elastic baffle.

[0030] Figure 11 This is a three-dimensional enlarged view of the cam, elastic baffle, sliding shaft and two blades of this utility model;

[0031] Figure 12 This is another three-dimensional enlarged view of the cam, elastic baffle, sliding shaft and two blades of this utility model;

[0032] Figure 13 This is a three-dimensional enlarged view of the two blades in this utility model;

[0033] Figure 14 This is another three-dimensional enlarged view of the two blades in this utility model.

[0034] Illustration:

[0035] 1. Frame; 11. Drive wheel; 12. First gear; 13. Second gear; 14. Third gear; 15. Driven wheel; 16. Fixed sleeve; 2. Cleaning brush; 21. Bristles; 22. Roller brush; 3. Combing roller; 31. First roller body; 311. Insertion hole; 32. Second roller body; 33. Comb teeth; 331. Comb groove; 34. Fixed blade; 341. Cutting tooth; 35. Elastic baffle; 36. Cutting groove; 4. Gearbox; 41. Box cover; 411. Perforation; 42. Box body; 5. Cam; 51. Protrusion; 6. Planetary gear; 61. Sun gear; 62. Bearing; 7. Sliding shaft; 71. Spring; 72. Bushing; 8. Sliding blade; 81. Shearing tooth. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below with reference to the accompanying drawings. The drawings are for reference and illustration only and do not constitute a limitation on the scope of patent protection of this utility model.

[0037] Reference Figures 1 to 14 A hair-cutting roller brush device for preventing tangling includes a frame 1. A roller brush 22 is rotatably connected to the cleaning port of the frame 1. The roller brush 22 has a cleaning area, a hair tangling area and a control area arranged sequentially along its axial direction. The bristles 21 of the cleaning area are distributed in a spiral shape. The comb teeth 33 of the hair tangling area are spaced apart to form comb grooves 331. A cam 5 is rotatably connected inside the control area. A sliding shaft 7, a fixed blade 34 and a sliding blade 8 are arranged along its axial direction inside the hair tangling area. The fixed blade 34 is fixed inside the roller brush 22. The sliding shaft 7 presses against the cam 5 and slides along the axial direction of the roller brush 22. The sliding blade 8 is fixed on the sliding shaft 7. The cutting teeth 81 of the sliding blade 8 are engaged with the cutting teeth 341 of the fixed blade 34 to stagger the cutting of hair in the comb grooves 331.

[0038] Reference Figure 1 and Figure 3 The roller brush 22 includes a cleaning brush 2, a combing roller 3, and a gearbox 4. The combing roller 3 is located between the cleaning brush 2 and the gearbox 4. The cleaning brush 2, the combing roller 3, and the gearbox 4 are coaxially arranged and sequentially constitute the cleaning area, the hair entanglement area, and the control area. The end of the cleaning brush 2 away from the gearbox 4 is rotatably connected to the right end of the frame 1, and the end of the gearbox 4 away from the cleaning brush 2 is rotatably connected to the left end of the frame 1.

[0039] Reference Figure 1 and Figure 2 The frame 1 has a gear set and a motor at the end away from the gearbox 4. The cleaning brush 2 is controlled to rotate by the gear set. In this embodiment, the gear set includes a driving wheel 11, a first gear 12, a second gear 13, a third gear 14 and a driven wheel 15. The driving wheel 11 is set on the output shaft of the motor. The first gear 12 is a double gear. One end of the first gear 12 meshes with the driving wheel 11, and the other end of the first gear 12 meshes with the second gear 13. The second gear 13 meshes with the third gear 14, and the third gear 14 meshes with the driven wheel 15. The driven wheel 15 is sleeved on the shaft of the cleaning brush 2 at the end away from the gearbox 4.

[0040] Reference Figure 1 and Figure 3 The cleaning brush 2, the combing roller 3, and the gearbox 4 are connected sequentially from right to left to form a cylinder. The outer wall of the cleaning brush 2 is provided with multiple rows of bristles 21 to form the cleaning area of ​​the entire roller brush 22. The multiple rows of bristles 21 are spirally distributed along the axial direction of the cleaning brush 2. Adjacent rows of bristles 21 are separated by a brush strip. All the brush strips are also spirally distributed. During the cleaning process of the cleaning brush 2, the brush strips and bristles 21 can guide the hair on the ground to the combing roller 3.

[0041] Reference Figure 3 , Figure 5 , Figure 7 , Figure 8 and Figure 10The outer wall of the combing roller 3 has a row of comb teeth 33 on each of its two opposite sides along its axial direction, thereby forming the hair winding area of ​​the roller brush 22. The combing roller 3 is located at the left end of the cleaning brush 2 and is fixedly connected to the cleaning brush 2. The right end of the combing roller 3 extends to the fixing hole on the left end face of the cleaning brush 2 and is fixedly connected to the cleaning brush 2. The combing roller 3 includes two roller bodies. In this utility model, the two roller bodies are specifically a first roller body 31 and a second roller body 32. Both the first roller body 31 and the second roller body 32 are semi-cylindrical shells. The front of the first roller body 31 and the back of the second roller body 32 are hollowed out. The first roller body 31 and the second roller body 32 cover each other to form The inner cavity has two rows of comb teeth 33, with each row of comb teeth 33 spaced apart along the axial direction of the roller brush 22. Each comb tooth 33 spans two rollers (i.e., half of each comb tooth 33 is located on the outer wall of the first roller 31, and the other end of the comb tooth 33 is located on the outer wall of the second roller 32; the first roller 31 and the second roller 32 must be closed to form a complete comb tooth 33). The comb groove 331 formed between two adjacent comb teeth 33 communicates with the inner cavity. To facilitate the cutting of hair by the blade, the inner wall of the comb roller 3 is provided with a cutting groove 36 at a position opposite to one of the rows of comb teeth 33 (the cross-section of the cutting groove 36 is similar to a V-shape, such as...). Figure 8 As shown in the figure, the cutting groove 36 is formed by two roller covers joined together, and the cutting groove 36 is connected to the nearby comb groove 331.

[0042] Reference Figure 4 , Figure 5 , Figure 7 , Figure 10 , Figure 11 , Figure 12 , Figure 13 and Figure 14The sliding shaft 7 is rod-shaped and is offset from the center of the roller brush 22. In this embodiment, the sliding shaft 7 is close to one row of comb teeth 33. Two bushings 72 are spaced apart on the sliding shaft 7 and are clamped and fixed by two rollers so that the sliding shaft 7 can slide along the axial direction of the combing roller 3. A spring 71 is sleeved on the end of the sliding shaft 7 away from the cam 5. The spring 71 is located inside the combing roller 3. The end of the sliding shaft 7 away from the cleaning brush 2 passes through the through hole 411 on the end face of the cleaning brush 2 and the end face of the gearbox 4 and extends into the gearbox 4. The upper end of the sliding blade 8 is cylindrical. The fixed end (i.e., the upper end) of the sliding blade 8 is fixed and sleeved on the sliding shaft 7. The lower end of the sliding blade 8 is Z-shaped. A row of shearing teeth 81 is provided at the bottom of the sliding blade 8. The sliding blade 8 is located between two bushings 72, and the sliding blade 8 is elastically connected to the inside of the combing roller 3 through a spring 71 (the left end of the spring 71 presses against the sliding blade 8). The sliding blade 8 is located between the cam 5 and the spring 71. The fixed blade 34 is rectangular and fixed to the inner wall of the first roller body 31. The bottom end of the fixed blade 34 is provided with a row of cutting teeth 341. The shearing teeth 81 on the sliding blade 8 and the cutting teeth 341 on the fixed blade 34 are both located in the cutting groove 36. An L-shaped elastic baffle 35 is also inserted at the insertion hole 311 on the inner wall of the first roller body 31. The elastic baffle 35 is located inside the combing roller 3. The sliding blade 8 is located between the elastic baffle 35 and the fixed blade 34. The free end of the elastic baffle 35 elastically presses against the cutting end of the sliding blade 8.

[0043] Reference Figure 6 , Figure 9 , Figure 11 and Figure 12 The gearbox 4 is rotatably connected to the frame 1 on the left side. The gearbox 4 constitutes the control area of ​​the roller brush 22. The gearbox 4 includes a housing 42 and a cover 41. The cover 41 is placed on the housing 42 to form a control cavity. The cover 41 is located between the housing 42 and the combing roller 3. The cam 5 is located in the control cavity and is linked to the gearbox 4. Specifically, the inner wall of the housing 42 is provided with internal teeth to form a planetary carrier. A sun gear 61 is rotatably connected inside the housing 42. The shaft of the sun gear 61 is rotatably connected to the housing 42 through a bearing 62. The cam 5 protrudes from the end face of the cleaning brush 2. A protrusion 51 is formed, which is located in the groove on the end face of the cover 41. The sliding shaft 7 presses against the protrusion 51. Three planetary gears 6 are rotatably connected to the end face of the cam 5 away from the sliding shaft 7. The sun gear 61 is located on the three planetary gears 6 and meshes with the three planetary gears 6. The sun gear 61 is connected to the inner wall of the box body 42 through the three planetary gears 6. The end of the sliding shaft 7 away from the cleaning brush 2 passes through the end face of the combing roller 3 and the cover 41 in sequence and extends into the control cavity. A fixed sleeve 16 is provided on the left side of the frame 1. The rotating shaft of the sun gear 61 is rotatably connected to the fixed sleeve 16.

[0044] Reference Figures 1 to 14 The working principle of the anti-tangling hair cutting roller brush device of this utility model is as follows:

[0045] The motor drives the drive wheel 11 to rotate, which in turn drives the driven wheel 15 to rotate through the first gear 12, the second gear 13, and the third gear 14. This, in turn, drives the cleaning brush 2, the combing roller 3, and the gearbox 4 to rotate together at the cleaning opening of the frame 1. On one hand, the spirally distributed bristles 21 and brush strips on the cleaning brush 2 clean the ground and guide the hair on the ground to the combing roller 3. The two rows of comb teeth 33 on the combing roller 3 comb the hair. The comb teeth 33 are taut, and the hair enters into the comb grooves 331, causing the hair to roll onto the combing roller 3. On the other hand, the housing 42 drives the three planetary gears 6 to rotate inside the housing 42 through its internal teeth. The sun gear 61 rotates accordingly, and the cam 5 rotates inside the gearbox 4. When the protrusion 51 of the cam 5 is in a high position... When the sliding shaft 7 is pressed against the brush 2, the sliding shaft 7 slides to one side, and the sliding shaft 7 drives the sliding blade 8 to slide to the right relative to the fixed blade 34. The spring 71 is compressed. At this time, the shearing teeth 81 of the sliding blade 8 are misaligned with the cutting teeth 341 of the fixed blade 34 to the right, cutting the hair in the corresponding comb groove 331 on the combing roller 3. When the protrusion 51 of the cam 5 presses against the sliding shaft 7 at a lower position, the sliding shaft 7 slides to one side of the gearbox 4. The spring 71 returns to its elastic deformation. The sliding shaft 7 drives the sliding blade 8 to slide to the left relative to the fixed blade 34. At this time, the shearing teeth 81 of the sliding blade 8 are misaligned with the cutting teeth 341 of the fixed blade 34 to the left, cutting the hair in the corresponding comb groove 331 on the combing roller 3. After the hair is cut, it is easy to suck it into the dust box.

[0046] This utility model discloses an anti-tangling hair cutting roller brush device. The roller brush 22 is sequentially arranged with a cleaning zone, a hair tangling zone, and a control zone along its axial direction. The cleaning zone uses spirally distributed bristles 21 to guide hair to the hair tangling zone on one side of the roller brush 22, where it is sequentially wound onto the comb teeth 33, preventing hair tangling and facilitating cutting. A cam 5 is installed in the control zone. The rotation of the cam 5 drives the sliding shaft 7 and the sliding blade 8 to slide back and forth along the axial direction of the roller brush 22, achieving close contact and shearing between the sliding blade 8 and the fixed blade 34, precisely cutting the hair within the comb groove 331 and effectively preventing hair tangling. The entire device not only effectively prevents the decrease in cleaning efficiency caused by hair tangling in the roller brush 22, ensuring consistent cleaning results, but also has a simpler structure, reducing complex mechanical parts and transmission structures, thereby lowering manufacturing costs. Simultaneously, the simple structure reduces the probability of malfunctions, significantly improving the reliability of the roller brush device.

[0047] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of protection of the present utility model. Therefore, any equivalent changes made in accordance with the scope of the patent application of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A hair-cutting roller brush device for preventing tangling, comprising a frame, wherein a roller brush is rotatably connected to the cleaning port of the frame, characterized in that, The roller brush is provided with a cleaning zone, a hair entanglement zone and a control zone in sequence along its axial direction. The bristles of the cleaning zone are distributed in a spiral shape. The comb teeth of the hair entanglement zone are spaced apart to form comb grooves. A cam is rotatably connected inside the control zone. A sliding shaft, a fixed blade and a sliding blade are provided inside the hair entanglement zone along its axial direction. The fixed blade is fixed inside the roller brush. The sliding shaft abuts against the cam and slides along the axial direction of the roller brush. The sliding blade is fixed on the sliding shaft and elastically connected to the roller brush. The cutting teeth of the sliding blade are engaged with the cutting teeth of the fixed blade to stagger and cut the hair in the comb grooves.

2. The anti-tangling hair cutting roller brush device according to claim 1, characterized in that, The inner wall of the roller brush is provided with a cutting groove at a position opposite to the comb teeth. The cutting groove is connected to the comb groove, and both the shearing teeth and the cutting teeth are located in the cutting groove.

3. The anti-tangling hair cutting roller brush device according to claim 1, characterized in that, The sliding shaft is offset from the center of the roller brush, and the cam protrudes from the end face of the sliding shaft to form a protrusion, and the sliding shaft presses against the protrusion.

4. The anti-tangling hair cutting roller brush device according to claim 1, characterized in that, The sliding blade is elastically connected to the roller brush via a spring. The spring is sleeved on the sliding shaft, and the fixed end of the sliding blade is sleeved on the sliding shaft. The sliding blade is located between the cam and the spring.

5. The anti-tangling hair cutting roller brush device according to claim 1, characterized in that, The roller brush includes a cleaning brush, a combing roller, and a gearbox. The combing roller is located between the cleaning brush and the gearbox. The cleaning brush, the combing roller, and the gearbox are coaxially arranged and sequentially constitute the cleaning area, the hair entanglement area, and the control area.

6. The anti-tangling hair cutting roller brush device according to claim 5, characterized in that, The cleaning brush is rotatably connected to the frame at the end away from the gearbox. A gear set is provided at the end of the frame away from the gearbox, and the cleaning brush is controlled to rotate by the gear set.

7. The anti-tangling hair cutting roller brush device according to claim 5, characterized in that, The combing roller includes two roller bodies that overlap each other to form an inner cavity. The number of comb teeth is two rows, with the comb teeth in the same row spaced apart along the axial direction of the cleaning brush. Each comb tooth spans two roller bodies.

8. The anti-tangling hair cutting roller brush device according to claim 5, characterized in that, The gearbox includes a housing and a cover. The cover is disposed on the housing to form a control cavity. The cam is located in the control cavity and is linked to the gearbox. The cover is located between the housing and the combing roller. The end of the sliding shaft away from the cleaning brush passes through the end face of the combing roller and the cover in sequence and extends into the control cavity.

9. The anti-tangling hair cutting roller brush device according to claim 8, characterized in that, The inner wall of the housing is provided with internal teeth to form a planetary carrier. A sun gear is rotatably connected inside the housing. The cam is rotatably connected to the housing cover. A planetary gear is rotatably connected to the end face of the cam away from the sliding shaft. The sun gear is connected to the inner wall of the housing through the planetary gears.

10. The anti-tangling hair cutting roller brush device according to claim 1, characterized in that, An elastic baffle is provided inside the hair entanglement area, and the sliding blade is located between the elastic baffle and the fixed blade. The free end of the elastic baffle elastically presses against the cutting end of the sliding blade.

Images