Tool bit for vibrissa trimmer

Abstract

The invention aims to provide a cutter head for a vibrissa trimmer, which comprises a cutter net assembly, a cutter body assembly is rotatably arranged in the cutter net assembly, the cutter net assembly comprises a first hollow connecting piece, a hollow cutter net for leading in vibrissa is arranged on the first hollow connecting piece, and the cutter body assembly comprises a second hollow connecting piece. The second hollow connecting piece is provided with a hollow cutter body used for executing the cutting action, the second hollow connecting piece extends into the first hollow connecting piece to abut against the first hollow connecting piece, at the moment, the hollow cutter net and the hollow cutter body are in adaptive contact, and when the cutter body assembly rotates, the hollow cutter body and the hollow cutter net form shearing fit; the outer cutter body and the inner cutter body adopt the straight cylinder type open design, the traditional structural mode of a support, a blade, an elastic piece and transmission is changed, the overall structure of the cutter head is simple, production and assembly are convenient, meanwhile, molds for production are reduced, the cost is reduced, and the straight cylinder type open design is adopted, so that the cutter head can be better matched with the visual function.

Description

Technical Field

[0001] This invention belongs to the field of personal hygiene tool technology, and particularly relates to a blade for a nose hair trimmer. Background Technology

[0002] A nose hair trimmer is a personal care tool used to trim exposed nose hairs, serving both the function of maintaining nasal hygiene and personal appearance. Existing nose hair trimmers have blades consisting of an inner blade and an outer blade net. The core structure of the inner blade revolves around "support + blade + elastic element + transmission". It achieves safe and efficient trimming through the shearing action of the outer blade net. However, this inner blade structure has many components, resulting in high cost, and the difficulty of assembly further increases the cost. Summary of the Invention

[0003] The purpose of this invention is to provide a simple cutting head to solve the problems existing in the prior art. To achieve the above objective, the specific technical solution of this invention is as follows: A blade head for a nose hair trimmer includes a blade mesh assembly, in which a blade body assembly is rotatably disposed.

[0004] Preferably, the blade assembly includes a first hollow connector on which a hollow blade for guiding nose hairs is mounted, and the blade body assembly includes a second hollow connector on which a hollow blade for performing cutting actions is mounted.

[0005] Preferably, the second hollow connector extends into the first hollow connector until it touches, at which point the hollow blade mesh and the hollow blade body are in adaptive contact. When the blade body assembly rotates, the hollow blade body and the hollow blade mesh form a shearing fit.

[0006] Preferably, the hollow blade mesh is provided with an outer blade body, which is evenly distributed along the circumference, and the interval area forms an outer incision. The hollow blade body is provided with an inner blade body, which is evenly distributed along the circumference, and the interval area forms an inner incision. The edge of the inner blade body is provided with a cutting edge that facilitates cutting. The cutting edge adopts a bevel design, and the bevel is preferably in the range of 40° to 50°, so that the cutting edge makes a beveled contact with the nose hair to reduce the cutting resistance.

[0007] Preferably, the inner wall edge of the inner blade body is provided with a cutting edge, and the outer wall of the inner blade body is provided with a convex surface. The convex surface is adapted to contact the inner wall of the hollow blade mesh. This structure reduces the contact between the hollow blade body and the hollow blade mesh when the hollow blade body rotates.

[0008] Preferably, to avoid contact with the inner wall of the nasal cavity during rotation, the hollow blade body extends to a height lower than the end face of the hollow blade mesh, forming a stepped structure with the outer edge higher than the inner edge. The outer blade body has rounded edges, and the width of the outer incision is controlled between 1mm and 2mm.

[0009] Preferably, the blade assembly is connected to the main body of the nose hair trimmer, the main body contains a drive body, and the second hollow connector is connected to the drive body, so that the drive body can drive the blade assembly to rotate.

[0010] Preferably, the blade mesh assembly is connected to the main body of the nose hair trimmer, and the main body is provided with a connection port. The first hollow connector is connected to the connection port to fix the blade mesh assembly to the main body.

[0011] Preferably, after the drive unit is started, it drives the central blade assembly to rotate. When the user places the blade close to the inside of the nasal cavity, the nasal hairs inside the nasal cavity naturally extend into the outer incision. The outer incision guides the nasal hairs into the inner incision. As the hollow blade continues to rotate, the nasal hairs are quickly cut off by the blade.

[0012] Preferably, the drive body is provided with a mounting rod, and a camera is installed at the end of the mounting rod. The mounting rod extends into the hollow blade assembly until the camera is located near the inner blade position.

[0013] Preferably, the outer and inner blades are open-shaped to avoid obstructing the camera's field of view.

[0014] The beneficial effects of this invention are as follows: The outer and inner blade bodies adopt a straight cylindrical open shape, which changes the traditional structure of bracket + blade + elastic element + transmission, making the overall structure of the blade head simple, easy to produce and assemble, and at the same time reducing the molds used in production and reducing costs. The inner blade is designed with evenly spaced incisions along its circumference to capture nasal hairs from all directions during rotation, avoiding any blind spots. The blade features an angled cutting angle, which distributes force more evenly, reduces cutting resistance, prevents nasal hair from being pulled, and improves trimming comfort. The stepped structure design, with a higher outer edge and a lower inner edge, prevents the hollow blade from directly contacting the inner wall of the nasal cavity during high-speed rotation, enhancing user safety.

[0015] The beneficial effects of this invention also lie in the fact that the open cylindrical design allows the blade head to better cooperate with the visual function. Specifically, the blade head structure is easy to cooperate with the mounted camera, which can be directly inserted into the blade head through the mounting rod. Combined with the open design of the blade head, the camera has a better field of view, thereby improving the trimming accuracy and ease of use.

[0016] Traditional visual nose hair trimmers often use an inwardly bent outer blade design in their hollow blade mesh, which reduces the viewing channel and obstructs the camera's field of view, thus affecting the user experience. This technology, however, adopts an open design, effectively avoiding obstruction of the camera's field of view and ensuring the clarity of the captured image. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram showing the overall structural state of an embodiment of the present invention.

[0019] Figure 2 This is a partial structural state reference diagram of an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram showing the overall cross-sectional structure of an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram showing the overall structural state of an embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the overall exploded structural state of an embodiment of the present invention.

[0023] Figure 6 This is a partial cross-sectional structural reference diagram of an embodiment of the present invention.

[0024] Figure 7 This is a partial structural state reference diagram of an embodiment of the present invention.

[0025] Figure 8 and Figure 9 This is a schematic diagram of a traditional cutter head structure, used for better illustration.

[0026] The markings in the diagram are as follows: 1. Main body; 2. Blade head; 3. Drive body; 11. Cover; 12. Switch; 13. Charging port; 14. Housing; 15. First bracket; 16. Second bracket; 17. Fixing component; 18. Fixing groove; 21. First hollow connecting component; 22. Hollow blade mesh; 23. Second hollow connecting component; 24. Hollow blade body; 25. Anti-slip groove; 26. Outer blade body; 27. Outer cutting edge; 29. ​​Inner blade body; 31. Mounting rod; 32. Camera; 33. Motor; 34. Battery; 35. Main control module; 36. Drive wheel; 37. Transmission wheel; 38. Driven wheel; 39. Middle frame; 231. Fixing block; 232. Limiting groove; 291. Inner cutting edge; 292. Blade; 293. Mounting channel; 371. Transmission component; 391. Limiting block. Detailed Implementation

[0027] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings. Specific examples will be used to illustrate the implementation of this disclosure. Those skilled in the art can easily understand other advantages and effects of this disclosure from the content disclosed in this specification. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Further explanation will follow with reference to the accompanying drawings.

[0028] Figures 1 to 7 The diagram shows a preferred embodiment of a blade head for a nose hair trimmer, including a blade mesh assembly. The blade mesh assembly rotatably includes a blade body assembly. The blade mesh assembly includes a first hollow connector 21, on which a hollow blade mesh 22 for guiding nose hairs is mounted. The hollow blade mesh 22 and the first hollow connector 21 are connected by an insertion method. The blade body assembly includes a second hollow connector 23, on which a hollow blade body 24 for performing a cutting action is mounted. The hollow blade body 24 and the second hollow connector 23 are also connected by an insertion method. In this configuration, the hollow blade mesh 22 and the hollow blade body 24 are in adaptive contact. When the blade body assembly rotates, the hollow blade body 24 and the hollow blade mesh 22 form a shearing engagement, thereby achieving the cutting operation of the guided nose hairs.

[0029] like Figures 1 to 3 As shown, the hollow blade mesh 22 is provided with an outer blade 26, which is evenly distributed along the circumference, forming an outer incision 27 in the interval area. The edges of the outer blade 26 are relatively rounded to avoid scratching the nasal mucosa when the blade tip enters the nasal cavity. The width of the outer incision 27 is controlled between 1mm and 2mm, with 2mm being the optimal value. This allows for precise screening and removal of exposed nasal hairs while preventing the hollow blade 24 from directly contacting the nasal mucosa. At the same time, the installation height of the hollow blade 24 is lower than the end face of the outer blade 26, forming a stepped structure with a higher outer surface and a lower inner surface. Even if the blade tip penetrates deep into the nasal cavity, the cutting component of the hollow blade 24 will not directly contact the inner wall of the nasal cavity, further ensuring the safety of nasal cavity operations.

[0030] The hollow blade body 24 is provided with inner blade bodies 29, which are evenly distributed along the circumference, forming inner slits 291 in the interval areas. The edges of the inner blade bodies 29 are provided with cutting edges 292 for easy cutting. This design can make the force more balanced during the rotational cutting process, and capture nose hairs from all directions when rotating, avoiding cutting dead angles. The blade 292 on the edge of the inner blade body 29 is designed with a 40°-50° bevel angle. The bevel angle of the blade in this range allows the blade to make contact with the nose hair at an angle, decomposing the force into a vertical cutting force and a horizontal cutting force. The two forces work together to make the force more even, avoid local stress concentration on the blade, and reduce the probability of the blade becoming dull. At the same time, the bevel cutting method can reduce shearing resistance and avoid pulling on the nose hair.

[0031] The inner wall edge of the inner blade body 29 is provided with a blade 292, and the outer wall of the inner blade body 29 is provided with a convex surface. The convex surface is adapted to contact the inner wall of the hollow blade mesh 22. This structure reduces the contact between the hollow blade body 24 and the hollow blade mesh 22 when the hollow blade body 24 rotates, thereby weakening the resistance.

[0032] Figures 1 to 7 As shown, both the blade assembly and the blade net assembly are connected to the main body 1. The main body 1 contains a drive body 3, on which a battery 34 is mounted. The battery 34 is equipped with a main control module 35, and a motor 33 is mounted at one end of the battery 34. The motor 33 is electrically connected to the main control module 35, and the camera 32 is electrically connected to the main control module 35. During operation, the main control module 35 transmits the images of the nasal cavity captured by the camera 32 to a smart terminal, such as a mobile phone or tablet, in real time. Users can observe the distribution of nasal hairs in the trimming area in real time through the smart terminal, thereby accurately controlling the trimming range and improving the convenience and safety of use.

[0033] The output end of the motor 33 is equipped with a drive wheel 36, a transmission component 371 is mounted on one side of the drive wheel 36, and transmission wheels 37 are provided on both sides of the transmission component 371. One transmission wheel 37 meshes with the drive wheel 36, and the other transmission wheel 37 meshes with a driven wheel 38 on one side, so as to realize the stable transmission of motor power. The driven wheel 38 is provided with a middle frame 39, and a limit block 391 is provided on the middle frame 39. The second hollow connecting component 23 is provided with a limit groove 232. The limit block 391 is snapped into the limit groove 232, so as to realize the connection between the blade assembly and the drive body 3, so that the drive body 3 can drive the hollow blade 24 to rotate.

[0034] The drive body 3 is equipped with a mounting rod 31, and a camera 32 is installed at the end of the mounting rod 31. A straight mounting channel 293 is reserved inside the hollow cutter body 24. The mounting rod 31 extends into the mounting channel 293 until the camera 32 is located near the inner cutter body 29. It is worth noting that the outer cutter body 26 and the inner cutter body 29 adopt a straight-extending open design, which not only prevents the camera's field of view from being blocked by the arc-shaped bending structure of the outer cutter body 26 and the inner cutter body 29, ensuring the stability of the visualization function, but also simplifies the mold processing technology and reduces the production and manufacturing cost.

[0035] The main body 1 is provided with a shell 14, and a first bracket 15 is provided inside the shell 14. The drive body 3 is installed on the first bracket 15. A second bracket 16 is provided on the first bracket 15 and is connected to the shell 14. A fixing member 17 is provided on the second bracket 16, and a fixing groove 18 is provided on the fixing member 17. An anti-slip groove 25 is opened on the outer peripheral surface of the first hollow connector 21. A fixing block 231 is provided on the first hollow connector 21. The fixing block 231 and the fixing groove 18 are engaged to achieve a stable connection between the blade assembly and the main body 1. After the moving body 3 is started, the driving body 3 drives the hollow blade body 24 to rotate. The hollow blade net 22 is fixed by connecting with the main body 1, so that the hollow blade net 22 and the hollow blade body 24 form a relative motion state. When the user puts the blade tip close to the inside of the nasal cavity, the nasal hairs in the nasal cavity naturally extend into the outer incision 27. The outer incision 27 guides the nasal hairs into the inner incision 291 on the inside. As the hollow blade body 24 continues to rotate, the blade 292 moves in a circular motion in sync. The two form a high-speed relative rotation shearing, realizing the rapid cutting of nasal hairs.

[0036] The main body 1 is equipped with a switch 12, which is electrically connected to the main control module 35 and is used to control the start and stop of the device. The main body 1 is equipped with a cover 11 at the port. When not in use, the cover 11 covers the outside of the cutter head to achieve dust protection for the cutter head. The main body 1 is equipped with a charging port 13 for charging the device.

[0037] In summary, the above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A blade head for a nose hair trimmer, comprising a blade mesh assembly, wherein a blade body assembly is rotatably disposed within the blade mesh assembly, characterized in that: The blade assembly includes a first hollow connector (21), on which a hollow blade (22) for guiding nose hairs is mounted. The blade assembly includes a second hollow connector (23), on which a hollow blade (24) for performing cutting actions is mounted. The second hollow connector (23) extends into the first hollow connector (21) until it touches. At this time, the hollow blade (22) and the hollow blade (24) are in adaptive contact. When the blade assembly rotates, the hollow blade (24) and the hollow blade (22) form a shearing fit.

2. The blade head for a nose hair trimmer according to claim 1, characterized in that, The hollow blade mesh (22) is provided with an outer blade body (26), which is evenly distributed along the circumferential direction, and the interval area forms an outer cut (27). The hollow blade body (24) is provided with an inner blade body (29), which is evenly distributed along the circumferential direction, and the interval area forms an inner cut (291). The edge of the inner blade body (29) is provided with a cutting edge (292) for easy cutting.

3. The blade head for a nose hair trimmer according to claim 2, characterized in that, The inner wall edge of the inner blade body (29) is provided with a blade (292), and the outer wall of the inner blade body (29) is provided with a convex surface. The convex surface is adapted to contact the inner wall of the hollow blade net (22). This structure reduces the contact between the hollow blade body (24) and the hollow blade net (22) when the hollow blade body (24) rotates.

4. The blade head for a nose hair trimmer according to claim 2, characterized in that, The blade (292) has a bevel, and the bevel angle is best in the range of 40° to 50°, so that the blade (292) and the nasal hair form a bevel contact to reduce shearing resistance. In order to avoid direct contact with the inner wall of the nasal cavity when rotating at high speed, the hollow blade body (24) extends into the lower end face of the hollow blade net (22) to form a stepped structure with the outer side higher than the inner side. The edge of the outer blade body (26) is rounded, and the width of the outer incision (27) is controlled between 1 mm and 2 mm.

5. A blade for a nose hair trimmer according to any one of claims 1-4, characterized in that, The blade assembly is connected to the main body (1) of the nose hair trimmer. The main body (1) contains a drive body (3). The second hollow connector (23) is connected to the drive body (3) so that the drive body (3) can drive the blade assembly to rotate. The blade mesh assembly is connected to the main body (1) of the nose hair trimmer. The main body (1) has a connection port. The first hollow connector (21) is connected to the connection port so that the blade mesh assembly is fixed to the main body (1).

6. The blade head for a nose hair trimmer according to claim 5, characterized in that, After the drive body (3) is started, it drives the middle blade assembly to rotate. When the user puts the blade close to the inside of the nasal cavity, the nasal hairs in the nasal cavity naturally extend into the outer incision (27). The outer incision (27) guides the nasal hairs into the inner incision (291) on the inside. As the hollow blade (24) continues to rotate, the nasal hairs are quickly cut off by the blade (292).

7. The blade head for a nose hair trimmer according to claim 6, characterized in that, The drive body (3) is provided with a mounting rod (31), and a camera (32) is installed at the port of the mounting rod (31). The mounting rod (31) extends into the hollow blade assembly until the camera (32) is located near the inner blade (29).

8. The blade head for a nose hair trimmer according to claim 7, characterized in that, The outer blade (26) and inner blade (29) are designed in an open shape to avoid obstructing the camera's (32) field of view.

9. The blade head for a nose hair trimmer according to claim 8, characterized in that, The drive unit (3) is equipped with a battery (34), and a main control module (35) is mounted on the battery (34). A motor (33) is mounted on one end of the battery (34), and the motor (33) is electrically connected to the main control module (35). The camera (32) is electrically connected to the main control module (35). A drive wheel (36) is mounted on the output end of the motor (33). A transmission component (371) is mounted on one side of the drive wheel (36), and transmission wheels (37) are mounted on both sides of the transmission component (371). One of the transmission wheels (37) Engaging with the driving wheel (36), another transmission wheel (37) engages with a driven wheel (38) on one side, realizing the stable transmission of motor power; the driven wheel (38) is provided with a middle frame (39), the middle frame (39) is provided with a limiting block (391), the second hollow connecting piece (23) is provided with a limiting groove (232), the limiting block (391) is snapped into the limiting groove (232), realizing the connection between the blade assembly and the driving body (3), so that the driving body (3) can drive the hollow blade (24) to rotate.

10. The blade head for a nose hair trimmer according to claim 9, characterized in that, The main body (1) is provided with a shell (14), and a first bracket (15) is provided inside the shell (14). The driving body (3) is installed on the first bracket (15). A second bracket (16) is provided on the first bracket (15). The second bracket (16) is connected to the shell (14). A fixing part (17) is provided on the second bracket (16). A fixing groove (18) is provided on the fixing part (17). An anti-slip groove (25) is opened on the outer peripheral surface of the first hollow connector (21). A fixing block (231) is provided on the first hollow connector (21). The fixing block (231) and the fixing groove (18) are engaged to achieve a stable connection between the knife net assembly and the main body (1). After the driving body (3) is started, the driving body (3) drives the hollow knife body (24) to rotate. The hollow knife net (22) remains fixed by connecting with the main body (1), thereby forming a relative motion state between the hollow knife net (22) and the hollow knife body (24).

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