Spherical nose hair trimming cutter head assembly and nose hair trimmer

By designing a spherical nose hair trimmer head assembly, the moving blade fits tightly against the spherical arc surface, solving the problems of low trimming efficiency, poor comfort, and high noise in existing nose hair trimmers, and achieving a highly efficient and comfortable nose hair trimming effect.

CN224144720UActive Publication Date: 2026-04-21HAINING XINYI MACHINERY & ELECTRICAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HAINING XINYI MACHINERY & ELECTRICAL
Filing Date
2025-04-27
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing nose hair trimmer's blade design cannot closely fit the spherical curved surface inside the nasal cavity, resulting in low trimming efficiency, poor comfort, high noise, easy pulling sensation, and trimming blind spots, making it difficult to handle short hairs in the curved depression of the nasal vestibule.

Method used

The nose hair trimmer head assembly uses a spherical blade net, a moving blade, and an elastic component. The moving blade fits tightly against the spherical surface inside the blade net. The stability of the moving blade during rotation is ensured by the cooperation of the elastic component and the positioning groove, and the self-adaptive fit is achieved through the X-shaped mounting structure.

Benefits of technology

It improves trimming efficiency, reduces noise and potential damage to nasal tissue, enhances comfort and safety, and enables precise shaving of hair in the spherical area inside the nasal cavity. It is easy to operate and improves the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The spherical nose hair trimming cutter head assembly comprises a cutter net, a movable cutter and a cutter shaft, the movable cutter is installed at the upper end of the cutter shaft in an X-shaped crossed mode, an elastic assembly is arranged between the movable cutter and the cutter shaft, the top of the cutter net is of a spherical structure, and the top of the cutter net is of a spherical structure. A blade of the movable cutter is an arc-shaped surface, and the blade is tightly attached to the inner spherical surface of the cutter net. The top of the knife net is spherical, so that the oppression on the skin is reduced, the comfort level is improved, and the processing precision of the knife net is improved. The movable cutter is highly attached to the spherical cambered surface, the pulling feeling during shaving can be reduced, and non-inductive trimming is achieved.
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Description

Technical Field

[0001] This utility model belongs to the technical field of nose hair trimmers, specifically relating to a spherical nose hair trimmer head assembly and a nose hair trimmer. Background Technology

[0002] A nose hair trimmer is used to trim excessively long nose hairs. It's a common grooming tool, and the trimmer head is its most important functional component. Traditional trimmer heads use flat or slightly curved blades. Figure 1 As shown, it cannot closely fit the spherical curved surface inside the nasal cavity, resulting in hair residue or the need for repeated trimming; the rigid blade is prone to pulling sensation when in contact with the skin, resulting in poor comfort; the non-spherical blade design has a trimming blind spot, making it particularly difficult to handle short hairs in the arc-shaped depression of the nasal vestibule.

[0003] Existing nose hair trimmers have the following drawbacks:

[0004] (1) Low pruning efficiency.

[0005] (2) It is not easy for hair to get in.

[0006] (3) Broken hair and debris can easily escape and enter the nasal cavity.

[0007] (4) Loud noise.

[0008] (5) High operating load. Summary of the Invention

[0009] To overcome the shortcomings of existing technologies, this utility model proposes a spherical nose hair trimmer head assembly and nose hair trimmer, which improves the fit between the moving blade and the spherical arc surface, increases trimming efficiency, enhances user comfort and safety, and provides adaptive fit to improve the processing accuracy of the blade mesh.

[0010] The technical solution adopted in this utility model is:

[0011] A spherical nose hair trimmer head assembly includes a blade net, a movable blade, and a blade shaft. The movable blade is mounted in an X-shape on the upper end of the blade shaft. An elastic component is provided between the movable blade and the blade shaft. The top of the blade net has a spherical structure, and the blade of the movable blade has an arc-shaped surface. The blade is tightly fitted to the inner spherical surface of the blade net. The spherical top of the blade net reduces pressure on the skin, improves comfort, and enhances the processing precision of the blade net. The high fit between the movable blade and the spherical arc surface reduces the pulling sensation during shaving, achieving "imperceptible trimming."

[0012] Furthermore, the cutter shaft has a positioning groove for mounting the moving cutter, and the positioning groove is angled.

[0013] Furthermore, the moving blade has a moving blade support, which is inserted into a positioning groove.

[0014] Furthermore, the elastic component is disposed between the moving blade support and the positioning groove. The elastic component allows the moving blade to fit tightly and stably against the inner spherical surface of the blade net, effectively preventing the moving blade from shaking and improving the stability of the moving blade during rotation. This not only improves the effect of nasal hair trimming but also reduces noise and potential damage to nasal tissue.

[0015] Furthermore, the elastic component is a spring, a sheet, or rubber.

[0016] Furthermore, the arc-shaped surface of the blade of the moving knife is consistent with the arc-shaped inner spherical surface of the knife net.

[0017] Furthermore, the blade mesh is provided with several longitudinally opened entry holes.

[0018] A nose hair trimmer includes a body on which the aforementioned spherical nose hair trimmer head assembly is mounted.

[0019] The beneficial effects of this utility model are:

[0020] 1. Improve the fit between the moving blade and the spherical arc surface: Through the cooperation of the elastic component and the positioning groove, the moving blade can fit tightly and stably on the spherical arc surface of the blade net, effectively preventing the moving blade from shaking and improving the stability of the moving blade during rotation. This not only improves the effect of nasal hair trimming, but also reduces noise and potential damage to nasal tissue.

[0021] 2. Precise shaving of hair in the spherical and arc-shaped areas: The optimized moving blade structure and installation position enable the nose hair trimmer to precisely shave the nose hair in the spherical and arc-shaped areas inside the nasal cavity. This area is where nose hair grows in concentrated areas and is difficult to trim. The design of this invention greatly improves the efficiency of nose hair trimming in this area. Users do not need to repeatedly adjust the angle of the nose hair trimmer, making the operation more convenient and improving the user experience.

[0022] 3. Improved comfort and safety: The top of the blade mesh is spherical, reducing pressure on the skin and improving comfort. The moving blade fits closely to the spherical arc surface, reducing the pulling sensation during shaving and achieving "unobtrusive trimming".

[0023] 4. Self-adaptive Fit: The moving blade's shape is an arc similar to the inner spherical surface of the blade holder. The moving blade is mounted on the blade shaft via an X-shaped mounting structure. An elastic component is located at the bottom of the positioning groove; this component can be a spring, sheet metal, rubber, or other elastic material. This elastic component provides sufficient elasticity to ensure the moving blade fits tightly against the inner wall of the blade holder. Furthermore, it adapts to the slight deformation of the moving blade holder during rotation, maintaining a constant and tight fit between the blade and the spherical arc surface.

[0024] 5. Improve the machining accuracy of the blade mesh: Spherical shapes are easy to machine and have high precision. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the existing cutter head structure.

[0026] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0027] Figure 3 This is a partial exploded structural diagram of this utility model.

[0028] Figure 4 This is a schematic diagram of the structure of the moving blade mounted on the cutter shaft according to this utility model.

[0029] In the diagram: 1. Blade mesh; 11. Inlet pore; 2. Moving blade; 21. Blade; 22. Moving blade support; 3. Elastic component; 4. Blade shaft; 41. Positioning groove. Detailed Implementation

[0030] The present invention will be further described below with reference to specific embodiments, but the present invention is not limited to these specific embodiments. Those skilled in the art should recognize that the present invention covers all alternatives, improvements and equivalents that may be included within the scope of the claims.

[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] See Figure 2-4 This embodiment provides a spherical nose hair trimmer head assembly, including a blade net 1, a movable blade 2, and a blade shaft 4. The movable blade 2 is mounted in an X-shape on the upper end of the blade shaft 4. An elastic component is provided between the movable blade 2 and the blade shaft 4. The top of the blade net 1 has a spherical structure, and the blade 21 of the movable blade 2 has an arc-shaped surface. The blade 21 is closely fitted to the inner spherical surface of the blade net 1. The spherical top of the blade net 1 in this invention reduces pressure on the skin, improves comfort, and also improves the processing accuracy of the blade net 1. The high fit between the movable blade 2 and the spherical arc surface reduces the pulling sensation during shaving, achieving "imperceptible trimming".

[0035] In this embodiment, the blade shaft 4 has a positioning groove 41 for mounting the moving blade 2, and the positioning groove 41 is obliquely arranged. The moving blade 2 has a moving blade support 22, which is inserted into the positioning groove 41. An elastic component 3 is provided between the moving blade support 22 and the positioning groove 41. The elastic component 3 allows the moving blade 2 to fit tightly and stably against the inner spherical surface of the blade net 1, effectively preventing the moving blade 2 from shaking and improving the stability of the moving blade 2 during rotation. This not only improves the effect of nasal hair trimming but also reduces noise and potential damage to nasal tissue. The elastic component 3 can be a spring, sheet metal, or rubber, or other elastic material.

[0036] In this embodiment, the arc-shaped surface of the blade 21 of the moving blade 2 is consistent with the arc-shaped inner spherical surface of the blade mesh 1. That is, the radius of curvature of the blade 21 is consistent with the radius of curvature of the inner spherical surface of the blade mesh 1.

[0037] The blade mesh 1 described in this embodiment has a plurality of longitudinally opened entry holes 11. The entry holes 11 are elongated.

[0038] This invention improves the fit between the moving blade and the spherical arc surface: through the cooperation of the elastic component and the positioning groove, the moving blade can fit tightly and stably on the spherical arc surface of the blade net, effectively preventing blade wobbling and improving the stability of the moving blade during rotation. This not only improves the effect of nose hair trimming but also reduces noise and potential damage to nasal tissue. Precise shaving of hair in the spherical arc area: the optimized moving blade structure and installation position allow the nose hair trimmer to precisely shave nose hair in the spherical arc area inside the nasal cavity. This area is where nose hair grows intensively and is difficult to trim. The design of this invention greatly improves the efficiency of nose hair trimming in this area. Users do not need to repeatedly adjust the angle of the nose hair trimmer, making operation more convenient and improving the user experience. Enhanced comfort and safety: the top of the blade net is spherical, reducing pressure on the skin and improving comfort. The high fit between the moving blade and the spherical arc surface reduces the pulling sensation during shaving, achieving "imperceptible trimming". Adaptive Fit: The moving blade's shape is an arc similar to the inner spherical surface of the cutter head. The moving blade is mounted on the cutter shaft via an X-shaped mounting structure. An elastic component, such as a spring, sheet metal, or rubber, is located at the bottom of the positioning groove. This elastic component provides sufficient elasticity to ensure the moving blade fits tightly against the inner wall of the cutter head and adapts to minor deformations during rotation, maintaining a constant and close fit between the blade and the spherical arc surface. Improved Machining Accuracy: The spherical shape is easy to machine with high precision.

[0039] Example 2

[0040] This embodiment provides a nose hair trimmer, including a body on which a spherical nose hair trimmer head assembly as described in Embodiment 1 is mounted. The movable blade 2 of the spherical nose hair trimmer head assembly is mounted on the body via a blade shaft 3 and is driven to rotate by a power mechanism within the body. The blade mesh 2 may be fixed to the body.

[0041] This invention improves the fit between the moving blade and the spherical arc surface, thereby increasing trimming efficiency, enhancing user comfort and safety, and providing adaptive fit to improve the processing accuracy of the blade mesh.

Claims

1. A ball nose trimmer head assembly comprising a cutter net (1), a moving cutter (2), a cutter shaft (4), characterized in that: The moving blade (2) is installed in an X-shape on the upper end of the blade shaft (4). An elastic component (3) is provided between the moving blade (2) and the blade shaft (4). The top of the blade net (1) has a spherical structure. The blade (21) of the moving blade (2) has an arc-shaped surface. The blade (21) is closely fitted with the inner spherical surface of the blade net (1).

2. A ballpoint nose hair trimmer head assembly according to claim 1, wherein: The cutter shaft (4) has a positioning groove (41) for mounting the moving cutter (2), and the positioning groove (41) is set at an angle.

3. A ballpoint nose hair trimmer head assembly according to claim 2, wherein: The moving blade (2) has a moving blade support (22), which is inserted into the positioning groove (41).

4. A ballpoint nose hair trimmer head assembly according to claim 3, wherein: The elastic component (3) is disposed between the moving blade support (22) and the positioning groove (41).

5. A ballpoint nose hair trimmer head assembly according to claim 4, wherein: The elastic component (3) is a spring, a sheet, or rubber.

6. A ballpoint nose hair trimmer head assembly according to claim 1, wherein: The arc shape of the blade (21) is consistent with the inner spherical arc shape of the blade net (1).

7. A ballpoint nose hair trimmer head assembly according to claim 1, wherein: The blade mesh (1) is provided with a number of longitudinally opened entry holes (11).

8. A ballpoint nose hair trimmer head assembly according to claim 7, wherein: The pore (11) is elongated.

9. A nose hair trimmer, comprising a body, wherein the body is equipped with a spherical nose hair trimmer head assembly as described in any one of claims 1-8.