Special-shaped vibrissa knife

Abstract

According to the special-shaped vibrissa knife, a first intersection line and a second intersection line on the inner wall of a shearing part of a static knife are located on two cutting faces respectively, the two cutting faces intersect to form an included angle alpha, and the inner wall of the shearing part of the static knife is only provided with one break angle due to the arrangement of the included angle alpha, so that the production process is simplified, and the manufacturing cost is reduced. Meanwhile, due to the clearance fit design of the cutting end of the movable cutter and the included angle alpha, the stability and accuracy of the vibrissa cutter in the cutting process are ensured, and the risk of accidentally injuring the inner wall of the nasal cavity is effectively avoided. In addition, due to the design of the included angle alpha, the movable cutter and the static cutter are matched more tightly, the vibrissa is effectively prevented from slipping off in the cutting process, and the cutting effect is further improved. When the cutting device is used, a user can feel smoother and more comfortable cutting experience, and meanwhile the possibility that repeated operation is needed due to incomplete cutting is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of hair trimming devices, and particularly relates to a special-shaped nose hair trimmer. Background Art

[0002] A nose hair trimmer is a personal care appliance specifically designed for trimming nose hair, usually used by men. Its main function is to trim overly long nose hair to ensure that the nose hair does not protrude, thereby maintaining personal image and nasal cavity hygiene. In the prior art, nose hair trimmers are usually designed with straight or simple curved blades. Such designs often fail to achieve an ideal trimming effect when trimming nose hair and are likely to cause discomfort. Summary of the Invention

[0003] In view of this, the present invention provides a special-shaped nose hair trimmer.

[0004] To achieve the above object, the present invention provides the following technical solutions: A special-shaped nose hair trimmer includes a moving blade and a stationary blade. A moving blade installation cavity is formed inside the stationary blade, and the moving blade is disposed in the moving blade installation cavity. The stationary blade has a stationary blade body portion and a stationary blade cutting portion. The inner wall of the stationary blade cutting portion has a first intersection line and a second intersection line, the first intersection line and the second intersection line intersect, and an included angle α is formed between the first intersection line and the second intersection line. The moving blade has a moving blade cutting portion corresponding to the stationary blade cutting portion, and the moving blade cutting portion has a moving blade cutting end that is in clearance fit with the included angle α.

[0005] Preferably, a plurality of stationary blade cutting grooves are formed on the stationary blade cutting portion. Stationary blade teeth are formed between adjacent stationary blade cutting grooves. The outer wall of the stationary blade teeth has a first stationary blade tooth portion and a second stationary blade tooth portion corresponding to the first intersection line and the second intersection line, and an arc transition portion is provided between the first stationary blade tooth portion and the second stationary blade tooth portion.

[0006] Preferably, a stationary blade protruding portion is formed between the stationary blade cutting portion and the stationary blade body portion. The inner diameter of the stationary blade protruding portion is larger than the inner diameter of the stationary blade body portion. Moving blade windmill portions are formed to protrude on both sides of the moving blade close to the stationary blade protruding portion, and the moving blade windmill portions are bent to form a curved surface structure.

[0007] Preferably, a plurality of pore inlet holes communicating with the moving blade installation cavity are formed at the top of the stationary blade cutting portion.

[0008] Preferably, a groove structure is provided on the arc transition portion, and both sides of the groove structure extend to the first stationary blade tooth portion and the second stationary blade tooth portion.

[0009] Preferably, the cross-sectional shape of the stationary blade cutting portion is trapezoidal. A third intersection line is provided on the inner wall of the stationary blade body portion, and a perpendicular structure is provided between the second intersection line and the third intersection line.

[0010] Preferably, the cutting end of the moving knife has an arc chamfer, and the diameter of the arc chamfer is 0.05 mm - 0.3 mm.

[0011] Preferably, when the positions of the first intersection line and the second intersection line on the inner wall of the static knife cutting part remain unchanged, the outer wall cross-sectional shape of the static knife cutting part is conical or arc-shaped.

[0012] Preferably, with the intersection of the second intersection line and the first intersection line as the reference, the second intersection line is arranged horizontally.

[0013] Preferably, with the intersection of the second intersection line and the first intersection line as the reference, the second intersection line is inclined downward towards the lower part of the central axis of the moving knife installation cavity.

[0014] Preferably, with the intersection of the second intersection line and the first intersection line as the reference, the second intersection line is inclined upward towards the upper part of the central axis of the moving knife installation cavity.

[0015] The beneficial effects of the present invention are as follows: The first intersection line and the second intersection line on the inner wall of the static knife cutting part are respectively on two cutting surfaces, and the two cutting surfaces intersect to form an included angle α. The setting of the included angle α makes the inner wall of the static knife cutting part have only one fold angle, thereby simplifying the production process and reducing the manufacturing cost. At the same time, the clearance fit design between the cutting end of the moving knife and the included angle α ensures the stability and accuracy of the nose hair trimmer during the cutting process, effectively avoiding the risk of accidentally injuring the inner wall of the nasal cavity. In addition, the design of the included angle α also makes the cooperation between the moving knife and the static knife closer, effectively preventing the nose hair from slipping during the cutting process, and further improving the cutting effect. When the user is using it, a more smooth and comfortable cutting experience can be felt, and at the same time, the possibility of repeated operation due to incomplete cutting is reduced. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Att Figure 1 is a schematic structural diagram of the present invention; Att Figure 2 is an Figure 1 axial sectional view; Att Figure 3 is an Figure 2 enlarged view at A in the Att Figure 4 is a schematic structural diagram of another viewing rate structure; AttFigure 5 Schematic diagram of another embodiment structure; Appendix Figure 6 Schematic diagram of another embodiment structure; Appendix Figure 7 For appendix Figure 6 Cross-sectional view; Appendix Figure 8 Schematic diagram of another embodiment structure; Appendix Figure 9 For appendix Figure 8 Cross-sectional view; Appendix Figure 10 Schematic diagram of another embodiment structure. Specific implementation manner

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0019] Next, the present invention will be further described in conjunction with the accompanying drawings of the specification.

[0020] The present invention provides the following technical solutions: As shown in the appendix Figures 1-10 As shown, the present invention discloses a special-shaped nose hair trimmer, including a moving blade 1 and a stationary blade 2. A moving blade installation cavity 3 is formed inside the stationary blade 2, and the moving blade 1 is arranged inside the moving blade installation cavity 3. The stationary blade 2 has a stationary blade body part 4 and a stationary blade cutting part 5. The inner wall of the stationary blade cutting part 5 has a first intersection line 6 and a second intersection line 7. The first intersection line 6 and the second intersection line 7 intersect, and an included angle α is formed between the first intersection line 6 and the second intersection line 7. The moving blade 1 has a moving blade cutting part 8 corresponding to the stationary blade cutting part 5, and the moving blade cutting part 8 has a moving blade cutting end 9 that is in clearance fit with the included angle α. Specifically, in this design, the first intersection line 6 and the second intersection line 7 on the inner wall of the stationary blade cutting part 5 are respectively on two cutting surfaces, and these two cutting surfaces intersect to form the included angle α. The setting of the included angle α makes the inner wall of the stationary blade cutting part 5 have only one fold angle, thereby simplifying the production process and reducing the manufacturing cost. At the same time, the clearance fit design between the moving blade cutting end 9 and the included angle α ensures the stability and accuracy of the nose hair trimmer during the cutting process, effectively avoiding the risk of accidentally injuring the inner wall of the nasal cavity. In addition, the design of the included angle α also makes the cooperation between the moving blade 1 and the stationary blade 2 more compact, effectively preventing the nose hair from slipping during the cutting process, and further improving the cutting effect. When the user is using it, a more smooth and comfortable cutting experience can be felt, and at the same time, the possibility of repeated operations due to incomplete cutting is reduced.

[0021] Further, a plurality of static knife shearing grooves 10 are formed in the static knife shearing part 5. Static knife teeth 11 are formed between adjacent static knife shearing grooves 10. The outer wall of the static knife teeth 11 has a first static knife tooth part 12 and a second static knife tooth part 13 corresponding to the first cross line 6 and the second cross line 7. An arc transition part 14 is provided between the first static knife tooth part 12 and the second static knife tooth part 13. Specifically, in this embodiment, the design of the arc transition part 14 optimizes the shearing effect of the static knife teeth 11, reduces the resistance during the shearing process, and improves the shearing efficiency and comfort of the nose hair trimmer. In addition, the cooperation between the first static knife tooth part 12 and the second static knife tooth part 13 of the static knife teeth 11 and the moving knife shearing end 9 is closer, ensuring that nose hairs can be effectively clamped and cut during the shearing process, avoiding the pulling and discomfort of the nose hairs. At the same time, this design also enhances the structural strength of the static knife shearing part 5 and improves the service life of the nose hair trimmer.

[0022] Further, referring to the attached Figures 6-7 As shown in the figure, a static knife protruding part 15 is formed between the static knife shearing part 5 and the static knife body part 4. The inner diameter of the static knife protruding part 15 is larger than that of the static knife body part 4. Moving knife blade parts 16 protrude from both sides of the moving knife 1 close to the static knife protruding part 15, and the moving knife blade parts 16 are bent to form a curved surface structure. Specifically, in this embodiment, the curved surface structure of the moving knife blade parts 16 can form a certain gap with the inner wall of the static knife protruding part 15. Such a design not only enhances the stability of the moving knife 1 in the static knife 2, but also enables air to smoothly pass through the gap between the moving knife blade parts 16 and the static knife protruding part 15 when using the nose hair trimmer, reducing the resistance during use and improving the comfort of use. In addition, the curved surface structure of the moving knife blade parts 16 also has a certain guiding effect, which can guide nose hairs into the static knife shearing part 5, making the shearing effect better. And the curved surface structure can also absorb the fallen hairs during the shaving process. Its working principle is: when the moving knife 1 rotates in the static knife 2, the curved surface structure of the moving knife blade parts 16 is like a small fan blade, and the generated airflow will suck the fallen hairs into the tiny space between the moving knife 1 and the static knife 2, effectively avoiding the inconvenience caused by the scattered hairs.

[0023] Further, referring to the attached Figures 4-9As shown, a number of pore openings 17 communicating with the moving blade mounting cavity 3 are provided at the top of the stationary blade cutting portion 5. Specifically, in this embodiment, the provision of the pore openings 17 also enables the nasal hair trimmer to trim eyebrows. After the eyebrows enter the moving blade mounting cavity 3 through the pore openings 17, they are precisely trimmed by the moving blade 1. Such a design broadens the usage range of the nasal hair trimmer, making it not only limited to trimming nasal hair but also meeting the user's need to trim eyebrows. The number and distribution of the pore openings 17 are carefully considered to ensure the uniformity and efficiency of the trimming effect. At the same time, the size of the pore openings 17 is also optimized, which can not only ensure the smooth entry of the eyebrows but also effectively prevent excessive external force from damaging the moving blade 1 and the stationary blade 2, thereby prolonging the service life of the nasal hair trimmer.

[0024] Further, referring to the attached Figure 6 As shown, a groove structure 18 is provided on the arc-shaped transition portion 14, and both sides of the groove structure 18 extend to the first stationary blade tooth portion 12 and the second stationary blade tooth portion 13. Specifically, in this embodiment, by providing the groove structure 18 on the arc-shaped transition portion 14, after the nasal hair trimmer enters the nostril, the nasal hair can be supported and made to stand upright through the groove structure 18, making the standing nasal hair easier to cut, thus improving the efficiency and effect of trimming. The design of the groove structure 18 fully considers the physiological structure of the human nostril to ensure that the nasal hair can naturally and comfortably enter the groove and be supported to stand upright. In addition, the depth and width of the groove structure 18 are carefully calculated, which can not only effectively support the nasal hair but also cause no discomfort or damage to the nostril. Such a design makes the nasal hair trimmer safer, more comfortable to use, and the trimming effect more ideal.

[0025] Further, the cross-sectional shape of the stationary blade cutting portion 5 is trapezoidal, and a third intersection line 19 is provided on the inner wall of the stationary blade body portion 4, and a vertical structure is provided between the second intersection line 7 and the third intersection line 19. Specifically, in this embodiment, the trapezoidal cross-sectional design of the stationary blade cutting portion 5 not only enhances its structural strength but also enables the nasal hair trimmer to more stably hold the nasal hair during trimming, avoiding incomplete trimming caused by slippage. At the same time, the vertical structure setting of the third intersection line 19 on the inner wall of the stationary blade body portion 4 and the second intersection line 7 makes the connection between the stationary blade body portion 4 and the stationary blade cutting portion 5 more stable, further enhancing the overall structural strength of the nasal hair trimmer. Such a design not only ensures the stability and durability of the nasal hair trimmer during long-term use but also enables the user to experience a more stable and reliable cutting experience when trimming nasal hair.

[0026] Furthermore, the moving blade cutting end 9 has an arc chamfer 20 with a diameter ranging from 0.05 mm to 0.3 mm. Specifically, in this embodiment, the arc chamfer 20 enables the moving blade cutting end 9 to contact the stationary blade teeth 11 more smoothly during the cutting process, reducing the cutting resistance and improving the cutting efficiency. At the same time, the arc chamfer 20 can effectively disperse the stress generated during cutting, extending the service life of the moving blade 1. In addition, the diameter range of the arc chamfer 20 is set between 0.05 mm and 0.3 mm, ensuring that it can meet the requirements of cutting efficiency without affecting the cutting accuracy due to excessive diameter. And the diameter range of the arc chamfer 20 is set between 0.05 mm and 0.3 mm, which can locally avoid the stationary blade, minimize the non-trimming end face, and avoid the problem of pulling hair due to non-trimming. At the same time, it can also solve the problem of sharp sound.

[0027] Furthermore, when the positions of the first cross line 6 and the second cross line 7 on the inner wall of the stationary blade cutting part 5 remain unchanged, the outer wall cross-sectional shape of the stationary blade cutting part 5 is conical or arc-shaped. Specifically, in this embodiment, the design of the outer wall cross-sectional shape of the stationary blade cutting part 5 further optimizes the use experience of the nose hair trimmer. The conical or arc-shaped outer wall cross-sectional shape enables the nose hair trimmer to better adapt to the nostril shapes and sizes of different users, improving the comfort and fit during use. This design not only enhances the stability of the nose hair trimmer in the nostril but also reduces the discomfort during use, allowing users to more easily and pleasantly complete the trimming of nose hair. At the same time, the conical or arc-shaped outer wall cross-sectional shape also has a certain guiding effect, enabling the nose hair trimmer to enter the nostril more smoothly, further enhancing the convenience of use. In other embodiments, the outer wall cross-sectional shape of the stationary blade cutting part 5 can also be parabolic, which can better adapt to the contour of the nostril and further improve the comfort and stability during use.

[0028] Refer to the attached Figure 9 As shown, with the intersection of the second cross line 7 and the first cross line 6 as the reference, the second cross line 7 is horizontally arranged. Specifically, in this embodiment, when the second cross line 7 is horizontally arranged, it can make the inner wall structure of the stationary blade cutting part 5 simpler and facilitate processing and manufacturing. At the same time, this design can also ensure the stability of the moving blade 1 during the cutting process, ensuring that nose hair can be effectively cut off.

[0029] Refer to the attached Figure 2As shown, with the intersection of the second cross line 7 and the first cross line 6 as the reference, the second cross line 7 is inclined downward toward the lower part of the axis of the moving blade installation cavity 3. Specifically, in this embodiment, when the second cross line 7 is inclined downward toward the lower part of the axis of the moving blade installation cavity 3, it can make the inner wall of the static blade shearing part 5 form a certain guiding effect during the shearing process, guiding the nasal hair to enter the shearing area more smoothly. This design can not only improve the shearing efficiency of the nasal hair clipper, but also reduce the pulling feeling of the nasal hair during the shearing process, making the trimming process more comfortable.

[0030] Reference appendix Figure 10 , with the intersection of the second cross line 7 and the first cross line 6 as the reference, the second cross line 7 is inclined upward toward the upper part of the axis of the moving blade installation cavity 3. Specifically, in this embodiment, when the second cross line 7 is inclined upward toward the upper part of the axis of the moving blade installation cavity 3, it enhances the stability and accuracy of the nasal hair clipper during the shearing process, and can also effectively reduce the slippage phenomenon of the nasal hair during shearing, thereby improving the shearing effect of the nasal hair clipper and the user experience.

[0031] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A special-shaped nose hair cutter, characterized by: The invention comprises a movable knife (1) and a stationary knife (2), wherein a movable knife installation cavity (3) is formed in the stationary knife (2), and the movable knife (1) is arranged in the movable knife installation cavity (3). The stationary knife (2) comprises a stationary knife body portion (4) and a stationary knife shearing portion (5), and the inner wall of the stationary knife shearing portion (5) comprises a first intersection line (6) and a second intersection line (7), and the first intersection line (6) and the second intersection line (7) intersect, and an angle α is formed between the first intersection line (6) and the second intersection line (7), and the movable knife (1) comprises a movable knife shearing portion (8) corresponding to the stationary knife shearing portion (5), and the movable knife shearing portion (8) comprises a movable knife shearing end (9) which is clearance-matched with the angle α.

2. The special-shaped nose hair cutter according to claim 1, characterized in that: A plurality of stationary knife shearing grooves (10) are provided on the stationary knife shearing portion (5), and stationary knife teeth (11) are formed between adjacent stationary knife shearing grooves (10). The outer wall of the stationary knife tooth (11) has a first stationary knife tooth portion (12) and a second stationary knife tooth portion (13) corresponding to the first intersection line (6) and the second intersection line (7), and an arc surface transition portion (14) is provided between the first stationary knife tooth portion (12) and the second stationary knife tooth portion (13).

3. The special-shaped nose hair cutter according to claim 1, characterized in that: A stationary knife protrusion (15) is formed between the stationary knife shearing portion (5) and the stationary knife main body portion (4), the inner diameter of the stationary knife protrusion (15) is larger than the inner diameter of the stationary knife main body portion (4), and the movable knife (1) protrudes on both sides close to the stationary knife protrusion (15) to form a movable knife blade portion (16), and the movable knife blade portion (16) is bent to form a curved surface structure.

4. The special-shaped nose hair cutter according to claim 1, characterized in that: A plurality of inlet holes (17) communicating with the moving knife mounting cavity (3) are provided at the top end of the stationary knife shearing portion (5).

5. The special-shaped nose hair cutter according to claim 2, characterized in that: A groove structure (18) is provided on the arc surface transition portion (14), and two sides of the groove structure (18) extend to the first stationary blade tooth portion (12) and the second stationary blade tooth portion (13).

6. The special-shaped nose hair cutter according to claim 1, characterized in that: The cross-sectional shape of the stationary knife shearing portion (5) is arranged in a trapezoidal shape, the inner wall of the stationary knife body portion (4) is provided with a third intersection line (19), and the second intersection line (7) and the third intersection line (19) are arranged in a vertical structure.

7. The special-shaped nose hair cutter according to claim 1, characterized in that: The movable knife shearing end (9) has an arc-shaped chamfer (20), and the diameter of the arc-shaped chamfer (20) is 0.05 mm-0.3 mm.

8. The special-shaped nose hair cutter according to claim 1, characterized in that: When the positions of the first intersection line (6) and the second intersection line (7) on the inner wall of the stationary knife shearing portion (5) remain unchanged, the cross-sectional shape of the outer wall of the stationary knife shearing portion (5) is conical or arc-shaped.

9. The special-shaped nose hair cutter according to claim 1, characterized in that: Taking the intersection of the second intersection line (7) and the first intersection line (6) as a reference, the second intersection line (7) is arranged in a horizontal shape.

10. The special-shaped nose hair cutter according to claim 1, characterized in that: Taking the intersection of the second intersection line (7) and the first intersection line (6) as a reference, the second intersection line (7) is arranged to be inclined toward the lower part of the central axis of the movable knife installation cavity (3).

11. The special-shaped nose hair cutter according to claim 1, characterized in that: Taking the intersection of the second intersection line (7) and the first intersection line (6) as a reference, the second intersection line (7) is arranged to be inclined toward the upper part of the central axis of the movable knife installation cavity (3).

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