Tool bit assembly structure of nose hair trimmer and nose hair trimmer adopting assembly structure

Abstract

The utility model discloses a tool bit assembly structure of a vibrissa trimmer and the vibrissa trimmer adopting the tool bit assembly structure. Belongs to the technical field of vibrissa trimmers. The technical key point is that the cutter comprises an inner cutter holder and an outer cutter holder which are mutually sleeved, an inner cutter assembly is arranged at the upper end of the inner cutter holder, and the inner cutter assembly is composed of a plurality of inner cutter heads which are uniformly distributed along the edge of the inner cutter holder at intervals. An outer cutter assembly is arranged at the upper end of the outer cutter holder, the outer cutter assembly is composed of a plurality of outer cutter bits which are evenly distributed along the edge of the outer cutter holder at intervals and matched with the inner cutter bits, the inner wall of the outer cutter assembly is tightly attached to the outer wall of the inner cutter assembly, and the outline of the inner wall of the outer cutter assembly and the outline of the outer wall of the inner cutter assembly are in a circular truncated cone shape matched with each other; the utility model aims to provide the tool bit assembly structure of the vibrissa modifier and the vibrissa trimmer adopting the structure, wherein the assembly effect is good, the inner tool bit and the outer tool bit are tightly matched, and the shearing effect is good. The device is used for trimming vibrissae.

Description

Technical Field

[0001] The utility model relates to a cutter head, more specifically, to a nose hair trimmer cutter head assembly structure. The utility model also relates to a nose hair trimmer using the assembly structure. Background Art

[0002] Nose hair trimmer is a beauty tool used to trim nose hair. Some people have nose hair growing outside the nose due to high hormone secretion, living in an environment with poor air quality or smoking, which affects their personal image.

[0003] There are two main types of existing nose hair trimmers. One is an inner and outer cylindrical blade head that cooperates with slow shearing, which is mostly operated manually; the other is an outer blade head that guides the nose hair and cooperates with the internal high-speed rotating blade to cut. This article mainly introduces the former type. The inner and outer cylindrical blade heads of this type are both cylindrical. When assembling, it relies on the processing accuracy of the inner and outer blades. However, due to the limitation of processing accuracy, there must be a certain gap between the inner and outer blades. When the gap is too large or the assembly accuracy is not high, the inner and outer blades are prone to collision, causing damage to the inner or outer blade, thus affecting the shearing effect. Utility Model Content

[0004] The first purpose of the utility model is to provide a nose hair trimmer blade assembly structure with good assembly effect, close fit between inner and outer blades and good shearing effect in view of the deficiencies in the above-mentioned prior art.

[0005] The latter object of the utility model is to provide a nose hair trimmer adopting the above-mentioned assembly structure.

[0006] The previous technical solution of the utility model is implemented as follows: a nose hair trimmer blade assembly structure includes an inner blade seat and an outer blade seat which are socketed with each other, an inner blade assembly is provided at the upper end of the inner blade seat, and the inner blade assembly is composed of a plurality of inner blade heads evenly spaced along the edge of the inner blade seat.

[0007] An outer knife assembly is provided at the upper end of the outer knife seat, and the outer knife assembly is composed of a plurality of outer knife heads evenly spaced along the edge of the outer knife seat and matched with the inner knife head. The inner wall of the outer knife assembly is tightly attached to the outer wall of the inner knife assembly, and the inner wall contour of the outer knife assembly and the outer wall contour of the inner knife assembly are in a mutually matching frustum.

[0008] In the above-mentioned nose hair trimmer blade assembly structure, a closed guide surface is arranged at the center of the upper end surface of the inner blade holder, and the inner blade assembly is arranged at the edge of the guide surface; the nose hair entering the upper end of the inner blade holder is guided by the guide surface into the shearing portion formed by the inner blade head and the outer blade head.

[0009] In the above-mentioned blade head assembly structure of a nasal hair trimmer, the guiding surface is in a conical shape with a higher middle part and lower two sides, and the inclined surface of the guiding surface smoothly extends to the edge of the outer knife seat.

[0010] In the above-mentioned blade head assembly structure of a nasal hair trimmer, the included angle between the outer cutting edge at the inner end of the outer blade head and the inner cutting edge at the outer end of the inner blade head and in cooperation therewith is 3-25°.

[0011] In the above-mentioned blade head assembly structure of a nasal hair trimmer, the inner side surface of the free end of the outer blade head is a first guiding inclined surface, the side surfaces of the outer blade head on both sides of the first guiding inclined surface are second guiding inclined surfaces, and the first guiding inclined surface, the second guiding inclined surface and the outer side surface of the outer blade head cooperate to form a frustum shape with a smaller upper part and a larger lower part.

[0012] The latter technical solution of the present invention is realized as follows: A nasal hair trimmer, which includes the above-mentioned blade head assembly structure, and the blade head assembly structure is connected with a driving structure.

[0013] In the above-mentioned nasal hair trimmer, the inner knife seat or the outer knife seat is connected with an elastic self-tensioning structure for tightly fitting the inner blade head and the outer blade head with each other.

[0014] In the above-mentioned nasal hair trimmer, the driving structure is a manual driving structure or an electric driving structure.

[0015] In the above-mentioned nasal hair trimmer, the trimmer includes a seat body, the electric driving structure is arranged in the seat body, and the blade head assembly structure is connected to the free end of the seat body; an elastic self-tensioning structure is connected between the output end of the electric driving structure and the blade head assembly structure.

[0016] In the above-mentioned nasal hair trimmer, the elastic self-tensioning structure includes a connecting block connected to the free end of the output shaft of the electric driving structure, and a tension spring is sleeved on the output shaft of the electric driving structure at the bottom of the connecting block.

[0017] A connecting head is arranged at the upper end of the connecting block, and a connecting groove matched with the connecting head is arranged at the bottom of the inner knife seat; the inner knife seat is always in an upward pressing state under the action of the elastic self-tensioning structure, so that the inner blade head and the outer blade head are always in close contact.

[0018] After the present invention adopts the above structure, by designing the inner wall contour of the outer knife assembly and the outer wall contour of the inner knife assembly to be in a frustum shape that cooperates with each other, the inner wall of the outer knife assembly and the outer wall of the inner knife assembly can be tightly fitted. At the same time, this tight fitting can also realize the grinding of the inner and outer blades, so that they always remain sharp, thereby ensuring the shearing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following further describes the present invention in detail with reference to the embodiments in the drawings, but it does not constitute any limitation to the present invention.

[0020] Figure 1 is a schematic structural view of the cutter head structure of the present utility model;

[0021] Figure 2 is a sectional structural view of the cutter head structure of the present utility model;

[0022] Figure 3 is an exploded structural view of the cutter head structure of the present utility model;

[0023] Figure 4 is a schematic structural view of the trimmer of the present utility model;

[0024] Figure 5 is a sectional structural view of the cutter head part of the trimmer of the present utility model.

[0025] In the figure: 1, inner cutter seat; 1a, guiding surface; 1b, connecting groove; 2, outer cutter seat; 3, inner cutter assembly; 3a, inner cutter head; 4, outer cutter assembly; 4a, outer cutter head; 5, first guiding inclined surface; 6, second guiding inclined surface; 7, seat body; 8, connecting block; 8a, connecting head; 9, tension spring. Specific embodiments

[0026] Refer to Figures 1 to 3 As shown, a cutter head assembly structure of a nose hair trimmer of the present utility model includes an inner cutter seat 1 and an outer cutter seat 2 which are sleeved with each other. An inner cutter assembly 3 is provided at the upper end of the inner cutter seat 1, and the inner cutter assembly 3 is composed of a plurality of inner cutter heads 3a which are evenly distributed at intervals along the edge of the inner cutter seat 1.

[0027] An outer cutter assembly 4 is provided at the upper end of the outer cutter seat 2. The outer cutter assembly 4 is composed of a plurality of outer cutter heads 4a which are evenly distributed at intervals along the edge of the outer cutter seat 2 and cooperate with the inner cutter heads 3a. The feature is that the inner wall of the outer cutter assembly 4 and the outer wall of the inner cutter assembly 3 are in close contact, and the contour of the inner wall of the outer cutter assembly 4 and the contour of the outer wall of the inner cutter assembly 3 are in a conical shape that cooperates with each other.

[0028] This structure can make the inner and outer cutter assemblies fit tightly, avoiding the appearance of gaps between the two. At the same time, during operation, the tightly fitting structure can polish the cutting edges of the inner and outer cutter assemblies to keep them sharp, thereby ensuring the cutting effect.

[0029] Compared with the columnar assembly of the inner and outer cutters in the prior art, which relies on the machining accuracy of the inner and outer cutters for assembly, due to the limitation of the machining accuracy, there must be a certain gap between the inner and outer cutters. When the gap is too large or the assembly accuracy is not high, the problem of knife collision between the inner and outer cutters is very likely to occur, causing damage to the inner or outer cutting edges and thus affecting the cutting effect.

[0030] Preferably, a closed guiding surface 1a is provided at the center of the upper end surface of the inner cutter seat 1, and the inner cutter assembly 3 is arranged at the edge of the guiding surface 1a.

[0031] The nasal hairs entering the upper end of the inner knife holder 1 are guided by the guiding surface 1a into the shearing part formed by the inner knife head 3a and the outer knife head 4a.

[0032] Further preferably, the guiding surface 1a is in a conical shape with the middle being high and both sides being low, and the inclined surface of the guiding surface smoothly extends to the edge of the outer knife holder 2.

[0033] The guiding surface can guide the nasal hairs into the cutting opening. Through experiments, it is found that when the guiding surface is conical, the nasal hairs will not rotate idly within the guiding surface, but will quickly enter the nearest cutting opening and will not be randomly guided to other cutting openings or rotate idly because the guiding surface is a flat surface.

[0034] Further preferably, the included angle between the outer shearing edge at the inner end of the outer knife head 4a and the inner shearing edge at the outer end of the inner knife head 3a and being in cooperation therewith is 3 - 25°. The included angle between the inner and outer shearing edges is preferably 15° ± 5°. Within a reasonable included angle range, the inner and outer shearing edges are in a scissor shape and can effectively shear the nasal hairs, avoiding the phenomenon of pulling out the nasal hairs.

[0035] Further preferably, the inner side surface of the free end of the outer knife head 4a is the first guiding inclined surface 5, the side surfaces of the outer knife head 4a on both sides of the first guiding inclined surface 5 are the second guiding inclined surfaces 6, and the first guiding inclined surface 5, the second guiding inclined surfaces 6 and the outer side surface of the outer knife head 4a cooperate to form a frustum shape with the upper part being small and the lower part being large.

[0036] Refer to Figure 4 and Figure 5 As shown, a nasal hair trimmer of the present utility model includes the above - described knife head assembly structure, and the knife head assembly structure is connected with a driving structure. The driving structure is a manual driving structure or an electric driving structure. In this embodiment, the driving structure is an electric driving structure. Whether it is a manual driving structure or an electric driving structure, conventional structures in the art can be adopted, which are not the technical points to be protected in this application and will not be elaborated herein.

[0037] Meanwhile, preferably, the inner knife holder 1 or the outer knife holder 2 is connected with an elastic self - tensioning structure for tightly fitting the inner knife head 3a and the outer knife head 4a together. Through the elastic self - tensioning structure, the inner and outer knife heads are always in a tightly - fitting state.

[0038] Preferably, the trimmer includes a seat body 7, the electric driving structure is arranged inside the seat body 7, and the knife head assembly structure is connected to the free end of the seat body 7; an elastic self - tensioning structure is connected between the output end of the electric driving structure and the knife head assembly structure.

[0039] In this embodiment, the elastic self-tensioning structure includes a connection block 8 connected to the free end of the output shaft of the electric drive structure. A tension spring 9 is sleeved on the output shaft of the electric drive structure at the bottom of the connection block 8. Through the tension spring, the outer wall of the inner knife assembly and the inner wall of the outer knife assembly can be closely attached, while ensuring the shearing effect, the inner and outer knife edges can be polished to keep the cutting edges always sharp.

[0040] A connection head 8a is provided at the upper end of the connection block 8, and a connection groove 1b matching the connection head 8a is provided at the bottom of the inner knife seat 1. This one-shaped assembly structure can enable the inner and outer knife seats to still maintain good transmission even when there is a certain precision difference.

[0041] The inner knife seat 1 is always in an upward pressing state under the action of the elastic self-tensioning structure, so that the inner knife head 3a and the outer knife head 4a are always in close contact.

[0042] During operation, when the switch is pressed, the electric drive structure drives the main and slave rotation of the inner knife through the cooperation of the connection head and the connection groove, so that the inner knife assembly and the outer knife assembly cooperate to cut nasal hair.

[0043] The above-mentioned embodiments are the preferred embodiments of the present invention, which are only used to conveniently illustrate the present invention and are not any form of limitation to the present invention. Any person with ordinary knowledge in the technical field, if within the scope not departing from the technical features of the present invention, makes local changes or modified equivalent embodiments using the technical content disclosed by the present invention, and does not depart from the technical feature content of the present invention, still belongs to the scope of the technical features of the present invention.

Claims

1. A nose hair trimmer blade assembly structure, comprising an inner blade holder (1) and an outer blade holder (2) which are sleeved together, wherein an inner blade assembly (3) is provided at the upper end of the inner blade holder (1), and the inner blade assembly (3) is composed of a plurality of inner blade heads (3a) which are evenly spaced along the edge of the inner blade holder (1); The outer knife seat (2) is provided with an outer knife assembly (4) at the upper end thereof. The outer knife assembly (4) is composed of a plurality of outer knife heads (4a) evenly spaced along the edge of the outer knife seat (2) and matched with the inner knife head (3a), and is characterized in that: The inner wall of the outer knife assembly (4) and the outer wall of the inner knife assembly (3) are in close contact, and the contour of the inner wall of the outer knife assembly (4) and the contour of the outer wall of the inner knife assembly (3) are in a mutually matching truncated cone shape.

2. A nose hair trimmer blade assembly structure according to claim 1, characterized in that: A closed guide surface (1a) is provided at the center of the upper end surface of the inner knife seat (1), and the inner knife assembly (3) is provided at the edge of the guide surface (1a); The nose hair entering the upper end of the inner blade seat (1) is guided by the guide surface (1a) into the shearing portion formed by the inner blade head (3a) and the outer blade head (4a).

3. A nose hair trimmer blade assembly structure according to claim 2, characterized in that The guide surface (1a) is in a cone shape with a high middle and low sides, and the inclined surface of the guide surface smoothly extends to the edge of the outer tool holder (2).

4. A nose hair trimmer blade assembly structure according to claim 1, characterized in that: The included angle between the outer shearing edge located at the inner end of the outer cutter head (4a) and the inner shearing edge located at the outer end of the inner cutter head (3a) and matched with each other is 3-25 degrees.

5. A nose hair trimmer blade assembly structure according to claim 1, characterized in that: The inner side surface of the free end of the outer blade head (4a) is a first guiding bevel (5), and the side surfaces of the outer blade head (4a) on both sides of the first guiding bevel (5) are second guiding bevels (6). The first guiding bevel (5), the second guiding bevel (6) and the outer side surface of the outer blade head (4a) cooperate to form a prism shape with a small top and a large bottom.

6. A nose hair trimmer, characterized in that: The trimmer comprises the cutter head assembly structure as described in any one of claims 1 to 5, and the cutter head assembly structure is connected to a driving structure.

7. A nose hair trimmer according to claim 6, characterized in that: The inner blade seat (1) or the outer blade seat (2) is connected with an elastic self-tensioning structure which enables the inner blade head (3a) and the outer blade head (4a) to fit closely with each other.

8. A nose hair trimmer according to claim 6, characterized in that: The driving structure is a manual driving structure or an electric driving structure.

9. A nose hair trimmer according to claim 8, characterized in that: The trimmer comprises a seat body (7), the electric drive structure is arranged in the seat body (7), and the cutter head assembly structure is connected to the free end of the seat body (7); an elastic self-tensioning structure is connected between the output end of the electric drive structure and the cutter head assembly structure.

10. A nose hair trimmer according to claim 9, characterized in that: The elastic self-tensioning structure comprises a connecting block (8) connected to the free end of the output shaft of the electric drive structure, and a tensioning spring (9) is sleeved on the output shaft of the electric drive structure at the bottom of the connecting block (8); The upper end of the connecting block (8) is provided with a connecting head (8a), and the bottom of the inner knife seat (1) is provided with a connecting groove (1b) matching with the connecting head (8a); The inner cutter seat (1) is always in an upwardly pressed state under the action of the elastic self-tensioning structure, so that the inner cutter head (3a) and the outer cutter head (4a) are always in close contact.

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