Tool bit structure for realizing short shearing length and vibrissa scissors

Abstract

The utility model relates to the field of hair trimmers, and discloses a cutter head structure and vibrissa scissors for realizing short cutting length, the cutter head structure comprises a movable blade, a fixed blade and a comb tooth piece, the movable blade is connected with the fixed blade in a back-and-forth sliding manner, the fixed blade is provided with a plurality of fixed cutter teeth arranged at intervals, the comb tooth piece is provided with a plurality of comb teeth arranged at intervals, and the fixed cutter teeth and the comb tooth piece are connected in a sliding manner. The fixed cutter teeth and the comb teeth are in one-to-one correspondence and abut against each other in a matched mode to form a comb sleeve, and the movable blade is located on the inner side of the comb sleeve. The comb tooth piece is tightly matched with the fixed cutter teeth to form a comb sleeve structure, so that the fixed cutter blade can be directly contacted with skin during trimming, the length of cut hair is equal to the thickness of the fixed cutter blade, the cutting length is obviously shortened, the comb is particularly suitable for application scenes requiring fine cutting length, such as vibrissa trimming, the precision of the trimming effect is improved, and the trimming efficiency is improved. The use comfort of a user is enhanced; a traditional thick and heavy comb sleeve is not needed, and the structure is more compact and light.

Description

Technical Field

[0001] The utility model relates to the technical field of hair trimmers, in particular to a cutter head structure and a nose hair scissor for achieving a short cutting length. Background Art

[0002] The trimmer's blade design allows for the installation of a comb cover, making it easier to control the length of trimmed hair. Traditional integrated comb covers cover the fixed blades, and the length of hair left after trimming is determined by the thickness of the fixed blades and the comb cover. Therefore, when trimming with a traditional integrated comb cover, the hair left behind is relatively long. This design can cause the trimmed hair to be too long, especially when using nose hair clippers, affecting user comfort and overall experience. Utility Model Content

[0003] In order to solve at least one aspect of the above problems, the present invention first provides a cutter head structure for achieving a short shear length, including a movable blade, a fixed blade and a comb tooth member, the movable blade is connected to the fixed blade for sliding back and forth, the fixed blade is provided with a plurality of spaced fixed blade teeth, the comb tooth member is provided with a plurality of spaced comb teeth, the fixed blade teeth correspond to the comb teeth one by one and abut against each other to form a comb sleeve, and the movable blade is located on the inner side of the comb sleeve.

[0004] Optionally, the invention further comprises a first shell and a second shell connected to each other, wherein the first shell is provided with the comb tooth member, and the fixed blade is installed in the second shell.

[0005] Optionally, the first shell is provided with a first card slot and a second card slot, and the second shell is provided with a first card hook engaged with the first card slot and a second card hook engaged with the second card slot.

[0006] Optionally, the first shell is a plastic part, and the comb teeth are integrally formed with the first shell.

[0007] Optionally, the fixed blade is provided with fixed blade teeth on both the left and right sides, and the movable blade is provided with movable blade teeth corresponding to the fixed blade teeth on both the left and right sides.

[0008] Optionally, the tip of the fixed blade tooth is provided with a protruding portion protruding upward, and the lower end of the comb tooth abuts against the upper end of the protruding portion.

[0009] Optionally, the fixed blade is a metal piece, and the tip of the fixed blade tooth is bent upward to form the protrusion.

[0010] Optionally, the raised portion is provided with a convex arc surface, and the lower end of the comb teeth is provided with a concave arc surface matching the convex arc surface.

[0011] Optionally, the lower ends of the outer surfaces of the comb teeth transition smoothly to the outer surface of the raised portion.

[0012] Compared with the prior art, the cutter head structure for achieving short cutting length in the present invention is a comb cover structure formed by the close cooperation of the comb teeth and the fixed blade teeth, so that the fixed blade can directly contact the skin during trimming. The length of the hair after cutting is equivalent to the thickness of the fixed blade, which significantly shortens the cutting length. It is particularly suitable for application scenarios requiring fine cutting length such as nose hair trimming, improves the accuracy of the trimming effect, and enhances the user's comfort. There is no need to use a traditional heavy comb cover, and the structure is more compact and lightweight.

[0013] In addition, the present invention provides a nose hair scissors, comprising the above-mentioned cutter head structure for achieving a short cutting length.

[0014] Compared with the prior art, the nose hair scissors described in the present invention and the above-mentioned blade structure for achieving short cutting length have the same advantages over the prior art, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a cutter head structure for achieving a short shear length according to an embodiment of the present utility model;

[0016] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0017] Figure 3 This is a partial structural diagram of a cutter head structure for achieving a short shear length according to an embodiment of the present utility model;

[0018] Figure 4 This is a structural diagram of the first housing according to an embodiment of the present utility model;

[0019] Figure 5 This is a partial structural diagram of the first shell of an embodiment of the present utility model.

[0020] Description of reference numerals:

[0021] 1. Moving blade; 11. Moving blade teeth; 2. Fixed blade; 21. Fixed blade teeth; 22. Raised portion; 221. Convex arc surface; 3. Comb tooth member; 31. Comb teeth; 311. Concave arc surface; 4. First housing; 41. First slot; 42. Second slot; 5. Second housing; 51. First hook; 52. Second hook. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] In the description of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate positions or location relationships based on the positions or location relationships during normal use of the product.

[0024] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. The drawings of the embodiments of the present invention are provided with a coordinate system XYZ, wherein the positive direction of the X-axis represents the left, the negative direction of the X-axis represents the right, the positive direction of the Y-axis represents the front, the negative direction of the Y-axis represents the back, the positive direction of the Z-axis represents the top, and the negative direction of the Z-axis represents the bottom.

[0025] The present invention provides a cutter head structure for achieving a short shear length, Figures 1 to 5 As shown, it includes a movable blade 1, a fixed blade 2 and a comb tooth member 3. The movable blade 1 is connected to the fixed blade 2 for sliding back and forth. The fixed blade 2 is provided with a plurality of spaced fixed blade teeth 21. The comb tooth member 3 is provided with a plurality of spaced comb teeth 31. The fixed blade teeth 21 correspond to the comb teeth 31 one by one and abut against each other to form a comb cover. The movable blade 1 is located inside the comb cover.

[0026] Among them, the movable blade 1 and the fixed blade 2 are connected by sliding back and forth, so that the movable blade 1 can reciprocate back and forth on the fixed blade 2 to achieve the purpose of efficiently cutting hair; the fixed blade teeth 21 on the fixed blade 2 are arranged at intervals along the front and back directions, ensuring the smooth entry of hair during the trimming process, making the trimming smoother, and the fixed blade teeth 21 are used to cooperate with the movable blade 1 to cut hair; the comb tooth member 3 is also provided with a plurality of comb teeth 31 arranged at intervals, and the comb teeth 31 correspond to the fixed blade teeth 21 one by one, so that the comb teeth 31 and the fixed blade teeth 21 can cooperate closely to form a comb cover structure, which provides appropriate support and guidance for the hair. The movable blade 1 is located on the inner side of the comb cover, so that during the shearing process, the hair can pass through the comb cover into the inner side to be trimmed, and it can also prevent the movable blade 1 from contacting the skin to ensure safety; during the trimming process, for example, when the nose hair scissors trim the nose hair, the blade head rotates in the nostril to trim, and the fixed blade 2 can directly contact the skin, replacing the function of the traditional comb cover, thereby reducing the cutting length, so that the length of the hair after cutting is only the thickness of the fixed blade 2.

[0027] The cutter head structure for achieving a short cutting length in this embodiment is a comb cover structure formed by the close cooperation of the comb teeth 3 and the fixed blade teeth 21, so that the fixed blade 2 can directly contact the skin during trimming. The length of the hair after cutting is equivalent to the thickness of the fixed blade 2, which significantly shortens the cutting length. It is particularly suitable for application scenarios that require fine cutting length, such as nose hair trimming, improves the accuracy of the trimming effect, and enhances the user's comfort. There is no need to use a traditional heavy comb cover, and the structure is more compact and lightweight.

[0028] Optionally, combined Figure 1 、 Figure 2 、 Figure 3 As shown, it also includes a first shell 4 and a second shell 5 connected to each other, the first shell 4 is provided with the comb tooth part 3, and the fixed blade 2 is installed on the second shell 5. By adding a split design of the first shell 4 and the second shell 5, a more flexible and stable blade support is achieved, and the installation and maintenance of the cutter head structure are more convenient. When the comb tooth part 3 or the fixed blade 2 needs to be replaced, it is only necessary to replace the parts on the first or second shell 5, which simplifies the operation process.

[0029] Optionally, combined Figure 3 、 Figure 4 、 Figure 5 As shown, the first housing 4 is provided with a first slot 41 and a second slot 42, and the second housing 5 is provided with a first hook 51 that engages with the first slot 41 and a second hook 52 that engages with the second slot 42. The first hook 51 and the second hook 52 are located at the front and rear ends of the second housing 5, respectively. The structural design of the hooks and slots allows the first and second housings 4 and 5 to be assembled together with a simple push and can also be easily disassembled. The design of the two sets of slots and hooks ensures a tight connection between the first and second housings 4 and 5, preventing them from loosening during use, thereby improving the stability and durability of the cutter head structure.

[0030] Optionally, combined Figure 4 、 Figure 5 As shown, the first housing 4 is a plastic component, and the comb member 3 is integrally formed with the first housing 4. The plastic material of the first housing 4 makes it lightweight, corrosion-resistant, and wear-resistant, making the cutter head structure lighter and easier for users to operate and carry. The comb member 3 is directly connected to the first housing 4 through an integral molding process, reducing the separation and fixing steps of the cutter head assembly, thereby improving the overall structural strength and stability, and also improving production efficiency and reducing production costs.

[0031] Optionally, combined Figure 3 As shown, the fixed blade 2 is provided with fixed blade teeth 21 on both the left and right sides, and the movable blade 1 is provided with movable blade teeth 11 corresponding to the fixed blade teeth 21 on both the left and right sides.

[0032] Among them, comb teeth 3 are also provided on the left and right sides of the first shell 4 to enhance the trimming coverage of the cutter head structure; fixed blade 2 is provided with fixed blade teeth 21 on both sides, and these fixed blade teeth 21 are evenly spaced and designed to match the comb teeth 3, so that the hair on both sides can be guided into the movable blade 1 area by the comb teeth 31; the movable blade teeth 11 and the fixed blade teeth 21 cooperate with each other to perform reciprocating motion on both sides at the same time, ensuring that the hair on the left and right sides can be trimmed evenly, thereby improving the trimming efficiency and uniformity of the equipment; the left and right comb teeth 3 cooperate with the bilateral blade teeth to ensure that the hair can be effectively guided into the blade area when trimming at different angles and directions, thereby reducing blind spots and increasing the comprehensiveness and uniformity of trimming. No matter which direction or angle the user operates from, the hair can be smoothly guided and accurately trimmed by the comb teeth 3, avoiding repeated trimming and omissions, and bringing a uniform trimming effect.

[0033] Optionally, combined Figure 2 、 Figure 3 As shown, the tip of the fixed blade tooth 21 is provided with a protruding portion 22 protruding upward, and the lower end of the comb tooth 31 abuts against the upper end of the protruding portion 22 .

[0034] Among them, the tip of each fixed blade tooth 21 is provided with a tiny upward protrusion 22, forming a small protrusion slightly higher than the surface of the fixed blade tooth 21. The protrusion 22 is located at the tip of the fixed blade 2. Its main function is to provide stable support and positioning for the comb tooth part 3. At the same time, during the trimming process, it plays a role in guiding the hair and improving the cutting accuracy; the abutment design between the comb tooth part 3 and the protrusion 22 at the tip of the fixed blade tooth 21 ensures that the blade is close to the skin while avoiding direct contact between the dynamic blade 1 and the skin, reducing the irritation or scratches that may be caused to the skin during trimming.

[0035] Optionally, combined Figure 2 、 Figure 3 As shown, the fixed blade 2 is a metal piece, and the tip of the fixed blade tooth 21 is bent upward to form the protrusion 22.

[0036] Among them, the fixed blade 2 is made of metal material, which makes it have high hardness and wear resistance, increases the service life of the fixed blade 2, and at the same time maintains a sharp cutting edge during the pruning process, thereby improving the smoothness and effect of pruning; the tip of each fixed blade tooth 21 is formed into a raised portion 22 through an upward bending process, ensuring the high accuracy of the raised portion and making the raised portion 22 more stable; and the raised portion 22 and the tip have a smooth transition, and the smooth bending shape effectively reduces irritation or damage to the skin, thereby enhancing the comfort and safety of the user when pruning.

[0037] Optionally, combined Figure 2 、 Figure 3 、 Figure 4As shown, the raised portion 22 is provided with a convex arc surface 221, and the lower end of the comb tooth 31 is provided with a concave arc surface 311 that cooperates with the convex arc surface 221; the convex arc surface 221 is designed with precise curvature and fits tightly with the concave arc surface 311 of the comb tooth part 3 to achieve stable cooperation with the blade head; the convex arc surface 221 provides a smooth buffer surface when in contact with the skin, which helps to reduce the direct stimulation of the blade tip to the skin and enhance the skin protection effect.

[0038] Optionally, combined Figure 2 As shown, the lower end of the outer surface of the comb teeth 31 and the outer surface of the raised portion 22 have a smooth transition, which effectively avoids any sharp or abrupt contact points and reduces scratches or irritation to the skin during trimming. When trimming sensitive areas such as nose hair, it can significantly improve comfort and reduce damage to the skin; the smooth transition design can also effectively reduce the situation where the hair is pulled or stuck due to sharp edges during the trimming process. The hair can be smoothly guided into the movable blade 1 area through the comb cover, ensuring that each trimming can be carried out smoothly and improving the trimming efficiency.

[0039] Another embodiment of the present invention provides a nose hair scissors, comprising the above-mentioned cutter head structure for achieving a short cutting length.

[0040] The nose hair trimmer in this embodiment forms a comb cover structure by the close cooperation of the comb teeth 3 and the fixed blade teeth 21, so that the fixed blade 2 can directly contact the skin during trimming. The length of the hair after trimming is equivalent to the thickness of the fixed blade 2, which significantly shortens the cutting length. It is particularly suitable for application scenarios that require fine cutting length, such as nose hair trimming, which improves the accuracy of the trimming effect and enhances the user's comfort. There is no need to use a traditional heavy comb cover, and the structure is more compact and lightweight.

[0041] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the present utility model.

Claims

1. A cutter head structure for achieving a short shear length, characterized in that: The invention comprises a movable blade (1), a fixed blade (2) and a comb tooth member (3); the movable blade (1) is connected to the fixed blade (2) in a forward and backward sliding manner; the fixed blade (2) is provided with a plurality of spaced fixed blade teeth (21); the comb tooth member (3) is provided with a plurality of spaced comb teeth (31); the fixed blade teeth (21) correspond to the comb teeth (31) one by one and abut against each other to form a combing sleeve; the movable blade (1) is located inside the combing sleeve.

2. The cutter head structure for achieving a short shear length according to claim 1, characterized in that: It also comprises a first shell (4) and a second shell (5) connected to each other, wherein the first shell (4) is provided with the comb tooth member (3), and the fixed blade (2) is mounted on the second shell (5).

3. The cutter head structure for achieving a short shear length according to claim 2, characterized in that: The first housing (4) is provided with a first card slot (41) and a second card slot (42), and the second housing (5) is provided with a first card hook (51) that is engaged with the first card slot (41) and a second card hook (52) that is engaged with the second card slot (42).

4. The cutter head structure for achieving a short shear length according to claim 2, characterized in that: The first shell (4) is a plastic part, and the comb teeth (3) and the first shell (4) are integrally formed.

5. The cutter head structure for achieving a short shearing length according to claim 1, characterized in that: The fixed blade (2) is provided with fixed blade teeth (21) on both the left and right sides, and the movable blade (1) is provided with movable blade teeth (11) corresponding to the fixed blade teeth (21) on both the left and right sides.

6. The cutter head structure for achieving a short shearing length according to claim 1, characterized in that: The tip of the fixed blade tooth (21) is provided with a protruding portion (22) protruding upward, and the lower end of the comb tooth (31) abuts against the upper end of the protruding portion (22).

7. The cutter head structure for achieving a short shearing length according to claim 6, characterized in that: The fixed blade (2) is a metal piece, and the tip of the fixed blade tooth (21) is bent upward to form the raised portion (22).

8. The cutter head structure for achieving a short shearing length according to claim 6, characterized in that: The raised portion (22) is provided with a convex arc surface (221), and the lower end of the comb teeth (31) is provided with a concave arc surface (311) that matches the convex arc surface (221).

9. The cutter head structure for achieving a short shearing length according to claim 6, characterized in that: The lower end of the outer surface of the comb teeth (31) smoothly transitions to the outer surface of the raised portion (22).

10. A nose hair scissors, characterized in that: The invention comprises a cutter head structure for achieving a short shearing length as described in any one of claims 1 to 9.

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