A portable nasal hair trimmer

Abstract

The utility model discloses a portable nasal hair trimmer belongs to nasal hair trimmer technical field, and its technical key points include the casing, is provided with the trimming cutter head on the casing, is provided with the control panel in the casing, and the control panel is connected with drive motor assembly, and drive motor assembly is connected with trimming cutter head and is linked together, the control panel is connected with external power connection, and drive motor assembly and control panel are driven by external power and work, the utility model aims at providing a kind of compact structure, and the portable nasal hair trimmer of lower manufacturing cost and good use effect is used for trimming nasal hair.

Description

Technical Field

[0001] This utility model relates to a nose hair trimmer, and more specifically, to a portable nose hair trimmer. Background Technology

[0002] A nose hair trimmer is a beauty tool used to trim nose hairs. Some people experience nose hairs growing outside the nose due to hormonal imbalances, living in environments with poor air quality, or smoking, which can negatively impact their appearance.

[0003] There are two main types of nose hair trimmers: one uses inner and outer cylindrical blades with slow cutting speed, which is mostly operated manually; the other uses an outer blade to guide the nose hair while simultaneously cutting with an internal high-speed rotating blade. This section mainly introduces the former type. In this type, both the inner and outer cylindrical blades are cylindrical. During assembly, the precision of the inner and outer blades' machining is crucial. However, due to limitations in machining precision, a certain gap inevitably exists between the inner and outer blades. When the gap is too large or the assembly precision is low, the inner and outer blades are prone to colliding, causing damage to either the inner or outer blade and thus affecting the cutting effect.

[0004] Nasal hairs typically grow towards the center of the nasal cavity, forming an irregular network that serves as the first line of defense against respiratory diseases. However, observations have revealed that some nasal hairs, influenced by their follicles, surrounding tissues, or other nasal hairs, change direction during growth and may grow along the inner wall of the nasal cavity. Furthermore, nasal hairs located in the depressions on either side of the nasal vestibule grow even more haphazardly due to the limited space. This results in two main problems with existing nasal hair trimmers: the former struggles to effectively trim hairs near the nasal cavity wall and in the nasal vestibule, while the latter suffers from the same issue, as excessively fine trimming of normal nasal hairs can lead to their inhalation into the nasal cavity, causing irritation and discomfort. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of the prior art by providing a portable nose hair trimmer that is compact in structure, low in manufacturing cost, and effective in use.

[0006] The technical solution of this utility model is implemented as follows: a portable nose hair trimmer includes a housing, on which a trimming head is provided, and a control board is provided inside the housing. The control board is connected to a drive motor assembly, which is connected and linked with the trimming head. The control board is connected to an external power connector, and the drive motor assembly and the control board are driven by an external power source.

[0007] In the aforementioned portable nose hair trimmer, the external power connector is either a male connector or a female connector.

[0008] In the aforementioned portable nose hair trimmer, a rechargeable battery connected to a control board is provided inside the housing.

[0009] In the aforementioned portable nose hair trimmer, the housing is equipped with a control button that works in conjunction with the control panel, and the drive motor assembly is started and stopped by the control button.

[0010] In the aforementioned portable nose hair trimmer, a protective protrusion is provided on the outer shell of the control button to prevent accidental activation.

[0011] In the aforementioned portable nose hair trimmer, an LED light bead is connected to the control board, and the housing is composed of a light-transmitting material layer and a light-shielding material layer covering the outer surface of the light-transmitting material layer; light-transmitting perforations are provided on the light-shielding material layer.

[0012] In the aforementioned portable nose hair trimmer, the rotational speed of the drive motor assembly is 5-300 rpm.

[0013] In the aforementioned portable nose hair trimmer, the trimmer head consists of an outer blade and an inner blade that are nested together. The outer cutter head consists of an outer cutter holder and an outer cutter assembly disposed on the upper end of the outer cutter holder. The outer cutter assembly consists of outer cutters evenly distributed along the gaps at the upper edge of the outer cutter holder; each outer cutter is arranged in a tooth shape.

[0014] The inner cutter head consists of an inner cutter holder and an inner cutter assembly disposed on the upper end of the inner cutter holder. The inner cutter assembly consists of inner cutters that are evenly distributed along the upper edge of the inner cutter holder and cooperate with the outer cutter; each inner cutter is arranged in a tooth shape.

[0015] The inner wall of the outer blade assembly and the outer wall of the inner blade assembly are in close contact, and the outlines of the inner wall of the outer blade assembly and the outer wall of the inner blade assembly are in a mutually matching frustum shape. An elastic element is provided between the inner cutter head and the drive motor assembly. Under the elastic force of the elastic element, the inner cutter and the outer cutter are always in a tight fit.

[0016] In the aforementioned portable nose hair trimmer, a closed guide surface is provided at the center of the upper end face of the inner blade holder, and the inner blade assembly is provided at the edge of the guide surface; nose hairs entering the upper end of the inner blade holder are guided by the guide surface into the cutting section formed by the inner blade head and the outer blade head.

[0017] In the aforementioned portable nose hair trimmer, the inner side of the free end of the outer blade is a first guide slope, and the outer blade sides on both sides of the first guide slope are second guide slopes. The first guide slope, the second guide slope, and the outer blade sides cooperate to form a frustum shape that is smaller at the top and larger at the bottom.

[0018] By adopting the above-described structure, this utility model simplifies the internal structure and uses an external power supply for operation, thereby simplifying the internal control unit. At the same time, by setting an external power connector, the trimmer can be directly driven by mobile phones, tablets, power banks, and vehicle power interfaces, which saves costs, extends service life, and improves safety performance. Attached Figure Description

[0019] The present invention will be further described in detail below with reference to the embodiments shown in the accompanying drawings, but this does not constitute any limitation on the present invention.

[0020] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present utility model.

[0021] Figure 2 This is a schematic diagram of the internal structure of Embodiment 1 of this utility model.

[0022] Figure 3 This is an exploded structural diagram of Embodiment 1 of this utility model.

[0023] Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle.

[0024] Figure 5 This is an exploded structural diagram of the trimmer head of this utility model.

[0025] Figure 6 yes Figure 5 A magnified view of a portion of point B in the middle.

[0026] Figure 7 This is a structural schematic diagram of Embodiment 2 of this utility model.

[0027] Figure 8 This is a schematic diagram of the internal structure of Embodiment 2 of this utility model.

[0028] Figure 9 This is an exploded structural diagram of Embodiment 3 of this utility model.

[0029] Figure 10 This is a schematic diagram of the internal structure of Embodiment 3 of this utility model.

[0030] Figure 11 This is a schematic diagram of the internal structure of Embodiment 4 of this utility model.

[0031] In the diagram: 1. Housing; 1a. Protective boss; 1b. Light-transmitting material layer; 1c. Light-shielding material layer; 1d. Hole; 2. Trimmer head; 3. Control board; 3a. LED beads; 4. Drive motor assembly; 5. External power connector; 6. Rechargeable battery; 7. Control button; 8. Outer trimmer head; 8a. Outer trimmer holder; 8b. Outer trimmer assembly; 8c. Outer trimmer; 8d. First guide slope; 8e. Second guide slope; 9. Inner trimmer head; 9a. Inner trimmer holder; 9b. Inner trimmer assembly; 9c. Inner trimmer; 9d. Guide surface; 10. Elastic element. Detailed Implementation Example 1

[0032] See Figures 1 to 6 As shown, this utility model discloses a portable nose hair trimmer, including a housing 1. The housing is preferably elongated and cylindrical, making it easy for the user to hold. Of course, for a novel design, various other housing shapes can be used, which is readily apparent to those skilled in the art.

[0033] A trimming head 2 is provided on the housing 1, and a control board 3 is provided inside the housing 1. The control board 3 is connected to a drive motor assembly 4, which is linked to the trimming head 2. The rotational speed of the drive motor assembly 4 is 5-300 rpm, preferably 5-80 rpm. The slower speed can prevent the nasal hair from being cut into excessive pieces and inhaled into the nasal cavity. In this embodiment, the housing consists of a mounting shell and a protective cover. The trimming head, drive motor assembly, and control board are all located inside the mounting shell, and the protective cover covers the exposed trimming head. For ease of assembly, the mounting shell is composed of a cooperating upper shell and a lower shell. Of course, as those skilled in the art, it is easy to conceive of designing it as a cylindrical structure with end caps.

[0034] See Figure 5 and Figure 6 As shown, the trimmer head 2 is composed of an outer blade head 8 and an inner blade head 9 that are nested together; the outer blade head 8 is composed of an outer blade seat 8a and an outer blade assembly 8b disposed on the upper end of the outer blade seat 8a, and the outer blade assembly 8b is composed of outer blades 8c that are evenly distributed along the upper edge gap of the outer blade seat 8a; each outer blade 8c is arranged in a tooth shape.

[0035] The inner cutter head 9 consists of an inner cutter seat 9a and an inner cutter assembly 9b disposed on the upper end of the inner cutter seat 9a. The inner cutter assembly 9b consists of inner cutters 9c that are evenly distributed along the upper edge gap of the inner cutter seat 9a and cooperate with the outer cutter. Each inner cutter 9c is arranged in a tooth shape.

[0036] The inner wall of the outer blade assembly 8b and the outer wall of the inner blade assembly 9b are tightly fitted together, and the contours of the inner wall of the outer blade assembly 8b and the outer wall of the inner blade assembly 9b form a mutually fitting frustum shape. Meanwhile, an elastic element 10 is provided between the inner blade head 9 and the drive motor assembly 4. Under the elastic force of the elastic element 10, the inner blade 9c and the outer blade 8c are always in a tightly fitted state. The elastic element ensures that the inner and outer blade assemblies fit tightly together, preventing gaps and ensuring that the nose hairs are not pulled or pulled during trimming. Furthermore, during operation, the tightly fitted structure can sharpen the blades of the inner and outer blade assemblies, keeping them sharp and ensuring a good cutting effect.

[0037] More preferably, a closed guide surface 9d is provided at the center of the upper end face of the inner blade holder 9a, and the inner blade assembly 9b is disposed at the edge of the guide surface 9d; the nasal hair entering the upper end of the inner blade holder 9a is guided by the guide surface 9d into the shearing section formed by the inner blade head 9 and the outer blade head 8. The guide surface is preferably an upwardly convex cone shape. The guide surface can guide the nasal hair into the shearing opening. Experiments have shown that when the guide surface is cone-shaped, the nasal hair will not spin freely in the guide surface, but will quickly enter the nearest shearing opening and will not be randomly guided to other shearing openings or spin freely because the guide surface is flat.

[0038] More preferably, the inner surface of the free end of the outer cutter head 8 is a first guiding slope 8d, and the sides of the outer cutter head 8 on both sides of the first guiding slope 8d are second guiding slopes 8e. The first guiding slope 8d, the second guiding slope 8e, and the outer surface of the outer cutter head 8 cooperate to form a frustum shape, smaller at the top and larger at the bottom. Furthermore, it should be emphasized that the first and second guiding slopes can be flat or curved surfaces; the curved surfaces can be concave or convex. In this embodiment, since the cutter head is circular, the first guiding slope is a slightly concave arc shape, while the second guiding slope is flat. Theoretically, the upper part of the cutter head can also be ground to make it approximately frustum-shaped, in which case both the first and second guiding slopes would be convex arc surfaces.

[0039] Each inner blade has an inner end face or upper part that is beveled, with the upper end of the bevel located below the first guide bevel. This bevel design allows the upper end of the inner blade to be as close as possible to the outer blade, preventing the inner side of the inner blade from protruding and scratching the nose during rotation, or causing scratches when the user touches the blade with their fingers or other body parts while the trimmer is in operation. It also allows nasal hairs to be smoothly guided into the cutting section for trimming, preventing them from getting stuck in the step between the inner and outer blades. Furthermore, this bevel is preferably an extension of the first guide bevel, which further facilitates the smooth entry of nasal hairs into the inner blade. The second guide bevel further enhances the trimming effect by making the opening larger and closer to the nasal cavity wall.

[0040] Meanwhile, a control button 7, which works in conjunction with the control board 3, is provided on the housing 1. The drive motor assembly 4 is started and stopped via the control button 7. To prevent accidental activation when the trimmer is placed in a pocket or bag or other easily squeezed environment, a protective protrusion 1a is provided on the housing 1 surrounding the control button 7 to prevent accidental activation. The protective protrusion is preferably 0.1-1mm higher than the control button, so as to effectively prevent accidental activation without affecting the user's operation of the button.

[0041] The control board 3 is connected to an external power connector 5, and the drive motor assembly 4 and the control board 3 are driven by an external power source. This simple structure allows users to directly connect the trimmer to mobile phones or other electronic devices. Currently, mobile phones are almost ubiquitous, making it easy for this nose hair trimmer to obtain a power source. This structure results in a smaller overall size and lower cost. Furthermore, the elimination of the battery improves safety, as current lithium-ion batteries are prone to explosion and combustion under high temperatures or severe impacts, posing a safety hazard. The battery-free trimmer can be placed directly in a vehicle without exploding or igniting, even at high temperatures.

[0042] In this embodiment, the external power connector 5 is a female connector. The female connector can be any type of female connector commonly used in the art, such as Type-C, Micro-B, Lightning, etc. During use, this invention requires an external data cable to connect to a battery-powered electronic device such as a mobile phone to supply power to the control board and drive motor assembly. After use, simply unplug the data cable; it is very convenient to use.

[0043] See Figure 4 As shown, further preferably, to make the trimmer more aesthetically pleasing and stylish, LED beads 3a are connected to the control board 3. The housing 1 consists of a light-transmitting material layer 1b and a light-shielding material layer 1c covering the outer surface of the light-transmitting material layer 1b; light-transmitting perforations 1d are provided on the light-shielding material layer 1c. The perforations can be designed according to user needs using laser equipment. When light passes through the perforations, the desired pattern can be displayed.

[0044] In this embodiment, a motor mounting bracket is provided inside the housing to facilitate motor fixation. To avoid affecting light transmission, the motor mounting bracket is made of a transparent material. Of course, depending on the actual situation, it can also be made of an opaque material with a perforated design, achieving the same purpose of light transmission. This is something that those skilled in the art would readily conceive of.

[0045] To use, simply connect the trimmer to your phone or other electronic device with a built-in battery via a data cable to power it and trim your nose hairs. It's very convenient. Alternatively, you can connect it directly to AC power using a charging plug. Example 2

[0046] See Figure 7 and Figure 8 As shown, this utility model discloses a portable nose hair trimmer, whose structure is basically the same as that of Embodiment 1. The difference is that the external power connector 5 is a male connector, which can be directly connected to external electronic devices for use without the need for an additional data cable. Of course, users should choose a male connector that matches the interface of their electronic products; the trimming effect will be the same. Example 3

[0047] See Figure 9 and Figure 10 As shown, this utility model discloses a portable nose hair trimmer, whose structure is basically the same as that of Embodiment 1. The difference is that a rechargeable battery 6 connected to the control board 3 is provided inside the housing 1. The rechargeable battery is preferably a small-capacity battery, generally sufficient for 2-10 trims. A small-capacity battery has the advantage of small size, which makes the product smaller, easier to carry, and lower in cost. Example 4

[0048] See Figure 11 As shown, this utility model discloses a portable nose hair trimmer, whose structure is basically the same as that of Embodiment 2. The difference is that a rechargeable battery 6 connected to the control board 3 is provided inside the housing 1. The rechargeable battery is preferably a small-capacity battery, generally sufficient for 2-10 trims. A small-capacity battery has the advantage of small size, which makes the product smaller, easier to carry, and lower in cost.

[0049] The above-described embodiments are preferred embodiments of the present utility model and are only used to facilitate the illustration of the present utility model. They are not intended to limit the present utility model in any way. Any person skilled in the art who makes partial modifications or alterations to the technical content disclosed in the present utility model without departing from the scope of the technical features of the present utility model shall still fall within the scope of the technical features of the present utility model.

Claims

1. A portable nose hair trimmer, comprising a housing (1) having a trimming head (2) disposed thereon, characterized in that, The housing (1) is provided with a control board (3), and the control board (3) is connected to a drive motor assembly (4). The drive motor assembly (4) is connected and linked with the trimmer head (2). The control board (3) is connected to an external power connector (5). The drive motor assembly (4) and the control board (3) are driven by an external power source.

2. A portable nose hair trimmer according to claim 1, characterized in that, The external power connector (5) is either a male connector or a female connector.

3. A portable nose hair trimmer according to claim 1 or 2, characterized in that, The housing (1) contains a rechargeable battery (6) that is connected to the control board (3).

4. A portable nose hair trimmer according to claim 1, characterized in that, The housing (1) is provided with a control button (7) that cooperates with the control board (3), and the drive motor assembly (4) is controlled to start and stop through the control button (7).

5. A portable nose hair trimmer according to claim 4, characterized in that, The control button (7) is provided with a protective protrusion (1a) on the outer shell (1) to prevent accidental opening.

6. A portable nose hair trimmer according to claim 1, characterized in that, The control board (3) is connected to LED beads (3a), and the housing (1) is composed of a light-transmitting material layer (1b) and a light-shielding material layer (1c) covering the outer surface of the light-transmitting material layer (1b); a light-transmitting perforated hole (1d) is provided on the light-shielding material layer (1c).

7. A portable nose hair trimmer according to claim 1, characterized in that, The speed of the drive motor assembly (4) is 5-300 rpm.

8. A portable nose hair trimmer according to claim 1, characterized in that, The trimmer head (2) consists of an outer blade (8) and an inner blade (9) that are nested together. The outer blade head (8) consists of an outer blade holder (8a) and an outer blade assembly (8b) disposed on the upper end of the outer blade holder (8a). The outer blade assembly (8b) consists of outer blades (8c) evenly distributed along the upper edge gap of the outer blade holder (8a); each outer blade (8c) is arranged in a tooth shape. The inner cutter head (9) consists of an inner cutter seat (9a) and an inner cutter assembly (9b) disposed on the upper end of the inner cutter seat (9a). The inner cutter assembly (9b) consists of inner cutters (9c) evenly distributed along the upper edge gap of the inner cutter seat (9a) and cooperating with the outer cutter. Each inner cutter (9c) is arranged in a tooth shape. The inner wall of the outer blade assembly (8b) and the outer wall of the inner blade assembly (9b) are closely attached, and the outline of the inner wall of the outer blade assembly (8b) and the outline of the outer wall of the inner blade assembly (9b) are in a mutually matching frustum shape; An elastic element (10) is provided between the inner cutter head (9) and the drive motor assembly (4). Under the elastic force of the elastic element (10), the inner cutter (9c) and the outer cutter (8c) are always in a tight fit.

9. A portable nose hair trimmer according to claim 8, characterized in that, The inner tool holder (9a) has a closed guide surface (9d) at the center of its upper end face, and the inner tool assembly (9b) is located at the edge of the guide surface (9d). Nasal hairs entering the upper part of the inner blade holder (9a) are guided by the guide surface (9d) into the shearing section formed by the inner blade head (9) and the outer blade head (8).

10. A portable nose hair trimmer according to claim 8, characterized in that, The inner side of the free end of the outer cutter head (8) is the first guide slope (8d), and the sides of the outer cutter head (8) on both sides of the first guide slope (8d) are the second guide slope (8e). The first guide slope (8d), the second guide slope (8e) and the outer side of the outer cutter head (8) are combined to form a frustum shape with a smaller top and a larger bottom.

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