Nasal hair cutter head accessory
By designing fully open imported and hemispherical moving blades in the nose hair trimmer, combining elastic knife posts and elastic parts, the problem of nose hair blockage in the nose hair trimmer is solved, achieving efficient trimming and comfortable use.
Patent Information
- Application Number
- CN202422589032.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-10-25
AI Technical Summary
The static knife top opening and lateral strip opening of existing nose hair trimmers can easily block nose hair, resulting in inefficient trimming.
The top of the static knife is designed to be fully open, and the side openings are arranged on the side walls. The end of the movable blade is hemispherical, combining elastic knife posts and elastic parts to ensure smooth entry of nose hair and efficient trimming.
It realizes efficient trimming of nose hair, full contact between the moving blade and the static knife, the trimming process is smoother, and the nasal cavity is sliding comfortably.
Smart Images

Figure CN223236369U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a hair trimming tool, more particularly to a nose hair trimmer head accessory. Background Art
[0002] The nose hair trimmer has a simple and stylish mirror cover design, a three-dimensional arched blade design that will not damage the nasal cavity, an open slit that can capture nose hair of any direction and length, and an improved elite blade to ensure efficiency. The central operating system makes it quiet to operate, and the dry battery design makes it easy to carry. The hair storage box can effectively store hair scraps, clean and hygienic, and the rubber grip is non-slip and comfortable to use.
[0003] The nose hair razor head disclosed in the Chinese patent with publication number CN213259577U has the following technical points: the device includes a stationary knife, a movable blade and a movable blade holder, wherein a mounting groove is provided on the movable blade holder, and the movable blade is installed in the mounting groove through an elastic member. There are two movable blades, and the cutting edges on the two movable blades face the two sides of the mounting groove. The movable blade extends into the stationary knife and the movable blade holder drives the movable blade to rotate in the stationary knife through a driving mechanism; under the action of the elastic member, the movable blade can retract inward in the direction of the mounting groove and the blade fits against the inner wall of the stationary knife; the circumferential side of the stationary knife is a stepped structure.
[0004] In the above scheme, the static knife has an opening in the top area, and the opening adopts a lateral strip opening and a top circular hole. Refer to the structure in the attached figure. When in use, the nose hair enters between the static knife and the movable knife through the lateral strip opening and the top circular hole to achieve trimming, but the specifications of the top circular hole and the lateral strip opening on the static knife will cause obstruction to the nose hair.
[0005] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content
[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a nose hair razor head accessory.
[0007] The above technical purpose of the present utility model is achieved through the following technical solutions: a nose hair razor head accessory, including a static knife, a movable blade and a movable blade seat, the top of the static knife is provided with a fully open inlet, the side wall of the static knife is provided with a plurality of side openings connected to the inlet and distributed in an array, and the end of the movable blade located at the inlet is hemispherical.
[0008] By adopting the above technical solution, when the nose hair trimmer head accessory of this design is used in a nose hair trimmer, the static knife is used as the basis for the nose hair trimmer to contact and limit the outside world, and the fully open structure opened on it can facilitate the nose hair to fully enter between the static knife and the moving blade through the inlet, so that the nose hair can be trimmed efficiently. In addition, the end of the auxiliary moving blade located at the inlet is hemispherical in structure, so that when the nose hair passes through the inlet and touches the moving blade, it is guided by the spherical end and moves between the static knife and the moving blade, so that the nose hair can be trimmed efficiently.
[0009] The utility model is further configured as follows: the movable blade includes a knife column, a plurality of blades are fixedly connected to the outer peripheral wall of the knife column, a vertical placement groove is opened in the knife column, and the knife column has elastic recovery characteristics through the placement groove.
[0010] By adopting the above technical solution, the placement groove on the knife column can make the knife column have the ability to deform, and the setting of the blade can make the blade contact the inner wall of the static knife when the movable blade is placed in the static knife and make the knife column have the ability to deform under the action of the placement groove, so that during the trimming process, the blade can fully contact the inner wall of the static knife to achieve fast and efficient trimming of nose hair.
[0011] The utility model is further configured as follows: the blade is located within the range of the two ends of the placement groove, and the sum of the diameter of the knife column and the width of the blade is greater than the inner diameter of the static knife.
[0012] The present invention is further configured as follows: the knife column is provided with a resistance block located in the placement groove, the adjacent resistance blocks are symmetrically arranged, several of the blades are provided with movable grooves for accommodating the resistance blocks, positioning portions and positioning grooves with open structures are provided between adjacent blades, and elastic members located in the positioning grooves are provided between adjacent blades, and the elastic members are used to provide a force for the two blades to move away from each other.
[0013] By adopting the above technical solution, a resistance block is set in the knife column and an elastic part is set, so that the blade is limited in the placement groove after being connected to the resistance block through the movable groove, and under the action of the elastic part, it is always in resistance to the inner wall of the static knife, which can efficiently trim the nose hair.
[0014] The utility model is further configured as follows: a plurality of side openings are arrayed and distributed at the end of the static knife, and the plane cross-section of the side openings is arc-shaped.
[0015] By adopting the above technical solution, the side opening is in an arc-shaped structure, so that the nose hair can be trimmed to an appropriate length after being limited by the side opening.
[0016] The utility model is further configured as follows: the end portion of the static knife is in a spherical structure, and a plurality of annular recesses are formed on the static knife.
[0017] By adopting the above technical solution, the static knife adopts a spherical structure, combined with an annular recess, so that the nose hair trimmer head can be displaced and rotated when inserted into the nasal cavity, and can trim the nose hair in all directions. When the spherical structure slides inside the nasal cavity, the cavity wall is more comfortable.
[0018] In summary, the present invention has the following beneficial effects:
[0019] When the nose hair trimmer head accessory of this design is used in a nose hair trimmer, the static knife serves as the contact and limit of the nose hair trimmer with the outside world, and the fully open structure on it can facilitate the nose hair to fully enter between the static knife and the moving blade through the inlet, so that the nose hair can be trimmed efficiently. In addition, the end of the auxiliary moving blade located at the inlet is hemispherical in shape, so that when the nose hair passes through the inlet and touches the moving blade, it is guided by the spherical end and moves between the static knife and the moving blade, so that the nose hair can be trimmed efficiently. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural diagram of the utility model;
[0021] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0022] Figure 3 Schematic diagram of the structure of the movable blade in this embodiment;
[0023] Figure 4 Schematic diagram of the structure of the knife column in this embodiment;
[0024] Figure 5 This is an exploded view of the assembly state of the blade in this embodiment.
[0025] In the figure: 1, static knife; 11, inlet; 12, side opening; 2, movable blade; 21, knife column; 22, blade; 221, positioning part; 222, elastic member; 223, movable groove; 23, placement groove; 24, interference block; 3, movable knife holder. DETAILED DESCRIPTION
[0026] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
[0027] like Figures 1 to 3 As shown, the nose hair razor head accessories include a stationary knife 1, a movable blade 2 and a movable blade holder 3. A fully open inlet 11 is provided on the top of the stationary knife 1, and a plurality of side openings 12 connected to the inlet 11 and distributed in an array are provided on the side wall of the stationary knife 1. The end of the movable blade 2 located at the inlet 11 is hemispherical.
[0028] like Figure 3As shown, the movable blade 2 includes a blade column 21, and a plurality of blades 22 are fixedly connected to the outer peripheral wall of the blade column 21. A vertical placement groove 23 is opened in the blade column 21. The blade column 21 has elastic recovery characteristics through the placement groove 23, and the blade 22 is located in the range at both ends of the placement groove 23. The sum of the diameter of the blade column 21 and the width of the blade 22 is greater than the inner diameter of the stationary blade 1. In this embodiment, the movable blade 2 is made of matte satin-finished stainless steel, and the stationary blade 1 is made of plastic or stainless steel and has an integrated structure.
[0029] like Figure 4 and Figure 5 As shown, the knife column 21 is provided with a resistance block 24 located in the placement groove 23, and the adjacent resistance blocks 24 are symmetrically arranged. A plurality of the blades 22 are provided with a movable groove 223 for accommodating the resistance block 24. A positioning portion 221 and a positioning groove with an open structure are provided between the adjacent blades 22. An elastic member 222 located in the positioning groove is provided between the adjacent blades 22. The elastic member 222 is used to provide a force for the two blades 22 to move away from each other. In this application, the knife column 21 is machined by turning and milling to form a placement groove 23 located at the central axis of the knife column 21. By thinning the mass of the knife column 21, a compression spring is placed as the elastic member 222 in the middle position of the placement groove 23. After the two blades 22 are inserted into the hole groove, the two blades 22 are pushed into the placement groove 23 symmetrically from both sides of the placement groove 23. Through the interference block 24 set inside the placement groove 23, when the blade 22 is pushed into the placement groove 23, the movable groove 223 is displaced and cooperates with the interference block 24. The inclined surface on the interference block 24 facilitates the placement of the blade 22. When the interference block 24 is located in the movable groove 223 of the blade 22, it can limit the blade 22 from detaching from the knife column 21, and under the action of the compression spring as an elastic member 222, the two blades 22 are displaced back to each other. Therefore, when the knife column 21 and the blade 22 are placed in the static knife 1, the blade 22 always contacts the inner wall of the static knife 1 under the action of the compression spring.
[0030] like Figure 1 and Figure 3 As shown, the end of the static knife 1 is a spherical structure, and a plurality of annular recesses are formed on the static knife 1. A plurality of side openings 12 are distributed in an array at the end of the static knife 1. The plane cross-section of the side openings 12 is arc-shaped, so that when the nose hair trimmer head is placed in the nasal cavity for movement (displacement and rotation), the nose hair is guided by the side openings 12, the inlet 11 and the end of the movable blade 2, and is displaced between the blade 22 and the inner wall of the static knife 1, thereby performing efficient trimming. The nose hair can be trimmed in all directions, and the cavity wall is more comfortable when the spherical structure slides inside the nasal cavity.
[0031] The stationary knife 1 and the movable blade 2 are assembled and directly connected to the motor inside the nose hair trimmer through the movable blade holder 3. The movable blade holder 3 is driven by the motor to drive the movable blade 2 to rotate inside the stationary knife 1. The stationary knife 1 is used as a means of contact and limitation for the nose hair trimmer with the outside world. The fully open structure opened on it can facilitate the nose hair to fully enter between the stationary knife 1 and the movable blade 2 through the inlet 11, so that the nose hair can be trimmed efficiently. The end of the auxiliary movable blade 2 located at the inlet 11 is a hemispherical structure, so that when the nose hair passes through the inlet 11 and touches the movable blade 2, it is displaced between the stationary knife 1 and the movable blade 2 under the guidance of the spherical end, so that the nose hair can be trimmed efficiently. The knife column 21 of the movable blade 2 is provided with a placement groove 23 and a compression spring and a resistance block 24 in the placement groove 23, which can provide a force for full contact between the blade 22 and the stationary knife 1 to achieve efficient trimming of the nose hair.
[0032] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.
Claims
1. A nose hair razor head accessory, comprising a stationary blade (1), a movable blade (2) and a movable blade holder (3), characterized in that: The top of the stationary blade (1) is provided with a fully open inlet (11), the side wall of the stationary blade (1) is provided with a plurality of side openings (12) which are connected to the inlet (11) and are distributed in an array, and the end of the movable blade (2) located at the inlet (11) is hemispherical.
2. The nose hair razor head accessory according to claim 1, characterized in that: The movable blade (2) comprises a blade column (21), a plurality of blades (22) are fixedly connected to the outer peripheral wall of the blade column (21), a vertical placement groove (23) is provided in the blade column (21), and the blade column (21) has elastic recovery characteristics through the placement groove (23).
3. The nose hair razor head accessory according to claim 2, characterized in that: The blade (22) is located within the range between the two ends of the placement groove (23), and the sum of the diameter of the blade column (21) and the width of the blade (22) is greater than the inner diameter of the stationary knife (1).
4. The nose hair razor head accessory according to claim 3, characterized in that: The knife column (21) is provided with a resistance block (24) located in the placement groove (23), and the adjacent resistance blocks (24) are symmetrically arranged. A plurality of the blades (22) are provided with a movable groove (223) for accommodating the resistance block (24). A positioning portion (221) and a positioning groove with an open structure are provided between adjacent blades (22). An elastic member (222) located in the positioning groove is provided between adjacent blades (22), and the elastic member (222) is used to provide a force for the two blades (22) to move away from each other.
5. The nose hair razor head accessory according to claim 1, characterized in that: A plurality of side openings (12) are distributed in an array at the end of the stationary blade (1), and the plane cross-section of the side openings (12) is arc-shaped.
6. The nose hair razor head accessory according to claim 1, characterized in that: The end of the stationary knife (1) is in a spherical structure, and a plurality of annular recesses are formed on the stationary knife (1).
Citation Information
Patent Citations
Vibrissa knife head
CN213259577U