Active beard searching type vibrissa head assembly and vibrissa trimmer

Abstract

The invention provides an active beard-finding type vibrissa head assembly and a vibrissa trimmer, the active beard-finding type vibrissa head assembly comprises a head cover and a cutter head assembly, the cutter head assembly comprises a cutter net assembly and a movable cutter assembly, the movable cutter assembly is rotatably mounted in the cutter net assembly, and the cutter net assembly is rotatably mounted in the head cover. The knife net assembly can rotate relative to the head cover and can be installed in the head cover in a periodic axial lifting mode relative to the head cover, and the knife net assembly and the movable knife assembly are in a differential reversing relation. Complex hair which grows in different directions in the nasal cavity and is bent or attached to the inner wall of the nasal cavity is efficiently captured, the cutting success rate of primary hair, soft hair and other specific types of hair is increased, a user does not need to manually and frequently rotate and adjust the angle of the machine body, and the operation process is simplified.

Description

Technical Field

[0001] This invention belongs to the technical field of nose hair trimmers, specifically relating to an active hair-finding nose hair head assembly and nose hair trimmer with differential reverse rotation and periodic axial lifting. Background Technology

[0002] A nose hair trimmer is a personal care appliance used for the safe and convenient trimming of excessively long nose hairs. Its basic function is to trim excess hair inside the nose and remove protruding nose hairs to maintain facial cleanliness and hygiene, while avoiding potential damage to the nasal cavity caused by traditional scissors or other tools. Currently, most nose hair trimmers are rotary. Their working principle is as follows: the drive mechanism (motor) inside the machine outputs power, which is transmitted to the nose hair trimmer head assembly via a power shaft. This drives the moving blades in the blade head assembly to rotate at high speed. The shearing action between the moving blades and the fixed blade mesh (also called the stationary blade or fixed blade in the industry) cuts the nose hairs that extend into the grooves of the blade mesh.

[0003] Existing nose hair trimmers include a body and a nose hair head assembly. The nose hair head assembly includes a head cover, a retainer, and a blade assembly. The blade assembly includes a blade screen and a moving blade, with the blade screen fixed within the head cover. During operation, power is output from the body to the body's blade shaft, which transmits the power to the interface below the moving blade in the blade assembly, causing the moving blade to rotate synchronously and in the same direction as the power output from the body, cutting the nose hairs that extend into the blade screen. The following drawbacks exist:

[0004] (1) Poor adaptability to capture complex hairs: The blades of existing products have a fixed design, and the direction of hair entry is singular and cannot be changed, which cannot adapt to the different growth directions of nasal hairs in the nasal cavity. For nasal hairs that are curved, attached to the inner wall, or whose angle does not match the slot of the blade, the capture ability is significantly reduced. The core problem is the lack of adaptability in the "passive hair entry" mode, which directly leads to the user pain point of "difficulty in hair entry".

[0005] (2) Low capture efficiency and failure to trim specific hairs: The fixed blade can only passively wait for the nose hairs to enter the slot, lacking an active capture mechanism. This fundamental defect not only exacerbates the difficulty of "entering the hair", but also directly causes the core pain point of "low efficiency". When dealing with specific types of nose hairs such as new growth and soft hairs, it is easy to encounter problems such as poor cutting angle and hair slippage, resulting in low trimming efficiency and a significant reduction in overall efficiency.

[0006] (3) Lack of human interaction and poor user experience: To compensate for the product's lack of adaptability and capture capabilities, users must rely on their own observation and usage experience to manually rotate and adjust the camera angle multiple times during the trimming process. This operation is not only tedious and complex, requiring a high level of user proficiency, but also significantly prolongs the trimming time (further reducing efficiency) and causes user fatigue. This fully exposes the shortcomings of the existing product in ergonomic interaction design, ultimately leading to the core pain point of "poor experience". Summary of the Invention

[0007] To overcome the shortcomings of existing technologies, this invention proposes an active hair-finding nasal hair head assembly and nasal hair trimmer, which can efficiently capture complex hairs with different growth directions, curvatures, or adhering to the nasal cavity wall, improve the success rate of cutting specific types of hair such as nasal hair and soft hair, and eliminate the need for users to frequently rotate and adjust the machine body angle manually, thus simplifying the operation process.

[0008] The technical solution adopted in this invention is:

[0009] An active whisker-finding nose hair head assembly includes a head cover and a blade head assembly. The blade head assembly includes a blade net assembly and a moving blade assembly. The moving blade assembly is rotatably mounted inside the blade net assembly. The blade net assembly is rotatable relative to the head cover and is periodically axially raised and lowered within the head cover. The blade net assembly and the moving blade assembly have a differential speed reversal relationship.

[0010] Furthermore, the blade mesh assembly includes a separate blade mesh and a blade mesh connector. The blade mesh connector has a periodically undulating track, and the inside of the head cover has an internal protrusion that cooperates with the track to periodically raise and lower the blade mesh assembly.

[0011] Furthermore, both the blade mesh assembly and the moving blade assembly are connected to the machine body blade shaft via a differential reversing assembly, and the head cover is connected to the differential reversing assembly.

[0012] Furthermore, the differential reversing assembly includes a differential reversing assembly housing, within which a machine body power input component connected to the machine body cutter shaft is installed. The machine body power input component is connected to a power output cutter shaft assembly via a power transmission shaft, and the power output cutter shaft assembly is connected to the moving tool assembly. A speed-reducing reversing planetary gear set is connected to the machine body power input component. The output end of the speed-reducing reversing planetary gear set is connected to a multi-stage speed-reducing same-direction planetary gear set, and the output end of the multi-stage speed-reducing same-direction planetary gear set is connected to a lifting power transmission component, which is connected to the cutter head assembly.

[0013] Furthermore, the speed reduction reversing planetary gear set includes a fixed planetary carrier fixed in the differential reversing component housing, a rotatable gear ring mounted on the fixed planetary carrier that can rotate around the central axis of the power transmission shaft, and a plurality of first planetary gears whose inner sides mesh with the first tooth profile on the power input component of the fuselage are mounted on the fixed planetary carrier, and the outer sides of the plurality of first planetary gears mesh with the inner gear ring of the rotatable gear ring.

[0014] Furthermore, the multi-stage speed reduction planetary gear set includes a fixed gear ring fixed in the housing of the differential reversing component. The fixed gear ring is equipped with multiple rotatable planetary carriers that can rotate around the central axis of the power transmission shaft. Each rotatable planetary carrier is equipped with multiple second planetary gears whose outer sides mesh with the inner gear ring of the fixed gear ring. The inner sides of the multiple second planetary gears in the lowest layer mesh with the second tooth profile on the rotatable gear ring. The inner sides of the multiple second planetary gears in the middle layer mesh with the third tooth profile on the adjacent lower rotatable planetary carrier. The uppermost rotatable planetary carrier is provided with a first connecting part connected to the lifting power transmission component.

[0015] Furthermore, the lower part of the lifting power transmission component is provided with a second connecting part that is connected to the first connecting part, and the second connecting part is provided with a plurality of power transmission arms that are connected to the blade net assembly.

[0016] Furthermore, the blade mesh connector is provided with a protruding interface, which is sleeved on the power transmission arm and rotates in conjunction with it, and can rise and fall along the axial direction of the power transmission arm.

[0017] Furthermore, the power output cutter shaft assembly has an elastic support member.

[0018] A nose hair trimmer includes a body and the aforementioned active hair-finding nose hair head assembly, wherein a differential reversing component of the active hair-finding nose hair head assembly is connected to or integrated into the body.

[0019] The beneficial effects of this invention are:

[0020] (1) Revolutionary cutting method: Through the reverse rotation and axial lifting of the blade mesh, a true "active hair-finding" effect is formed, which can effectively introduce nose hairs with different growth directions and effectively capture various difficult-to-handle nose hairs (curved, attached to the inner wall, mismatched with the angle of the blade mesh slot, soft nose hairs).

[0021] (2) Significantly improves cutting efficiency and success rate: The dynamically rotating blade greatly expands the effective cutting range and achieves full coverage. Users can complete the full trimming without frequently adjusting the angle manually, making the operation simpler and more convenient, and the effect more thorough.

[0022] (3) Modular design helps enhance commercial value: The core mechanism can be highly integrated into the nose hair head component, making it an independent "functional module". This not only allows it to be sold separately as a high-performance accessory and is compatible with multiple models, reducing the replacement and upgrade costs for users, but also expands the market space of the product and enhances its commercial value.

[0023] (4) Precision and easy to clean and maintain: The head cover and differential reversing component can be disassembled separately, realizing a highly efficient modular design. While realizing complex functions, it also ensures that users can easily disassemble, clean and assemble for use, solving hygiene hazards and extending service life.

[0024] (5) The segmented design of the blade mesh effectively reduces manufacturing difficulty: In the prior art, the blade mesh is a metal stretching part with a relatively high overall height. Due to the deep processing depth, the processing difficulty is high and the yield rate is low. However, the present invention decomposes the blade mesh assembly into blade mesh and blade mesh connecting parts, which greatly reduces the forming depth of the metal part, significantly reduces the processing difficulty, and improves the production yield and manufacturing feasibility.

[0025] (6) Segmented blade mesh significantly saves materials and manufacturing costs: Based on the above segmented design, not only is the processing technology simplified, but the amount of metal material used in a single blade mesh component is also directly reduced. At the same time, the higher production yield and simpler process work together to achieve a significant reduction in the overall manufacturing cost of the product, making it highly competitive in the market. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the active whisker-finding nose hair head assembly of the present invention.

[0027] Figure 2 This is a schematic diagram of the split structure of the active whisker-finding nose hair head assembly of the present invention.

[0028] Figure 3 This is a cross-sectional structural schematic diagram of the active whisker-finding nose hair head assembly of the present invention.

[0029] Figure 4 This is a cross-sectional view of the head cover and blade assembly of the active whisker-finding nose hair head assembly of the present invention.

[0030] Figure 5 This is a schematic diagram of the blade assembly of the active hair-finding nose hair-finding head assembly of the present invention.

[0031] Figure 6 This is a schematic diagram of the blade mesh connector of the active whisker-finding nose hair head assembly of the present invention.

[0032] Figure 7 This is a schematic diagram of the head cover structure of the active whisker-finding nose hair head assembly of the present invention.

[0033] Figure 8 This is a schematic diagram of the differential reversing component of the active whisker-finding nose hair head assembly of the present invention. Figure 1 .

[0034] Figure 9 This is a schematic diagram of the differential reversing component of the active whisker-finding nose hair head assembly of the present invention. Figure 2 .

[0035] Figure 10 This is a schematic diagram of the deceleration and reversing planetary gear set of the active whisker-finding nose hair head assembly of the present invention.

[0036] Figure 11 This is a schematic diagram of the structure of the multi-stage deceleration planetary gear set of the active whisker-finding nose hair head assembly of the present invention.

[0037] Figure 12 This is a schematic diagram of the structure of the first nose hair trimmer of the present invention.

[0038] Figure 13 This is a partial cross-sectional view of the first nose hair trimmer of the present invention.

[0039] Figure 14 This is a schematic diagram of the structure of the second type of nose hair trimmer of the present invention.

[0040] Figure 15 This is a partial cross-sectional view of the second type of nose hair trimmer of the present invention.

[0041] In the diagram: 1. Head cover; 11. Internal protrusion; 12. Head cover rotating buckle; 2. Cutter head assembly; 21. Cutter head assembly; 211. Cutter head; 212. Cutter head connector; 213. Rail; 214. Protrusion interface; 22. Moving cutter assembly; 221. Blade; 222. Moving cutter body; 223. Mating interface; 3. Differential reversing assembly; 31. Differential reversing assembly housing; 32. Reduction and reversing planetary gear set; 321. Fixed planetary carrier; 322. Rotatable gear ring; 3221. Second tooth profile; 323. First planetary gear; 324. First pin; 33. Multi-stage speed-reducing planetary gear set in the same direction; 331, fixed gear ring; 332, rotatable planetary carrier; 3321, third tooth profile; 3322, first connecting part; 333, second planetary gear; 334, second pin shaft; 34, machine body power input component; 341, first tooth profile; 342, input interface; 35, power transmission shaft; 36, power output cutter shaft assembly; 37, lifting power transmission component; 371, second connecting part; 372, power transmission arm; 38, differential reversing component slot; 39, rotating buckle; 4, machine body; 41, machine body cutter shaft; 42, machine body slot. Detailed Implementation

[0042] The present invention will be further described below with reference to specific embodiments, but the 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.

[0043] In the description of this invention, 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 orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and 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 the invention. 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 invention, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0044] In this invention, 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 invention according to the specific circumstances.

[0045] 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.

[0046] Example 1

[0047] See Figure 1-11This embodiment provides an active whisker-finding nose hair head assembly, including a head cover 1 and a blade head assembly 2. The blade head assembly 2 includes a blade net assembly 21 and a moving blade assembly 22. The moving blade assembly 22 is rotatably installed inside the blade net assembly 21. The blade net assembly 21 can rotate relative to the head cover 1 and can be periodically axially raised and lowered relative to the head cover 1 within the head cover 1. The blade net assembly 21 and the moving blade assembly 22 have a differential speed reversal relationship.

[0048] Specifically, the blade mesh assembly 21 in this embodiment includes a separately configured blade mesh 211 and a blade mesh connector 212. The blade mesh 211 and the blade mesh connector 212 can be assembled by means of snap-fit, interference fit, riveting, or adhesive bonding. The blade mesh connector 212 has a periodically undulating track 213, and the inside of the head cover 1 has an internal protrusion 11 that cooperates with the track 213 to periodically raise and lower the blade mesh assembly 21. The blade mesh connector 212 is fitted into the head cover 1, and the blade mesh connector 212 is supported by the elastic force provided by the power output blade shaft assembly, so that the track 213 is always in contact with the internal protrusion 11 of the head cover 1. When the external force drives the blade mesh connector 212 to rotate, the blade mesh connector 212 periodically raises and lowers according to the undulation of the track 213. The moving blade assembly 22 includes a blade 221 and a moving blade body 222, and the bottom of the moving blade body has a mating interface 223 that couples with the power output blade shaft assembly.

[0049] In this embodiment, both the blade mesh assembly 21 and the moving blade assembly 22 are connected to the machine body blade shaft via the differential speed reversal assembly 3, and the head cover 1 is connected to the differential speed reversal assembly 3. Specifically, the head cover 1 is disassembled and fixed to the differential speed reversal assembly 3 by engaging with the differential speed reversal assembly slot 38 via the lower head cover rotating buckle 12. Of course, the assembly is not limited to this connection method.

[0050] The differential reversing assembly 3 described in this embodiment includes a differential reversing assembly housing 31. A machine body power input component 34 connected to the machine body cutter shaft is installed inside the differential reversing assembly housing 31. The machine body power input component 34 is connected to the power output cutter shaft assembly 36 via a power transmission shaft 35. The power output cutter shaft assembly 36 is connected to the moving cutter assembly 22. A speed reduction reversing planetary gear set 32 ​​is connected to the machine body power input component 34. The output end of the speed reduction reversing planetary gear set 32 ​​is connected to a multi-stage speed reduction same-direction planetary gear set 33. The output end of the multi-stage speed reduction same-direction planetary gear set 33 is connected to a lifting power transmission component 37. The lifting power transmission component 37 is connected to the cutter head assembly 21.

[0051] The speed reduction and reversing planetary gear set 32 ​​described in this embodiment includes a fixed planetary carrier 321 fixed in the differential reversing component housing 31. A rotatable gear ring 322 that can rotate around the central axis of the power transmission shaft 35 is mounted on the fixed planetary carrier 321. A plurality of first planetary gears 323 are mounted on the fixed planetary carrier 321, and their inner sides mesh with the first tooth profile 341 on the power input component 34 of the fuselage. Each first planetary gear 323 is rotatably connected to the fixed planetary carrier 321 through a first pin 324. The outer sides of the plurality of first planetary gears 323 mesh with the inner gear ring of the rotatable gear ring 322.

[0052] The multi-stage deceleration planetary gear set 33 described in this embodiment includes a fixed gear ring 331 fixed in the differential reversing assembly housing 31. The fixed gear ring 331 is equipped with a plurality of rotatable planetary carriers 332 that can rotate around the central axis of the power transmission shaft 35. Each rotatable planetary carrier 332 is equipped with a plurality of second planetary gears 333 whose outer sides mesh with the inner gear ring of the fixed gear ring 331. Each second planetary gear 333 is rotatably connected to the rotatable planetary carrier 332 through a second pin 334. The inner sides of the plurality of second planetary gears 333 in the lowest layer mesh with the second tooth profile 3221 on the rotatable gear ring 322. The inner sides of the plurality of second planetary gears 333 in the middle layer mesh with the third tooth profile 3321 on the adjacent lower rotatable planetary carrier 332. The uppermost rotatable planetary carrier 332 is provided with a first connecting part 3322 connected to the lifting power transmission component 37.

[0053] In this embodiment, the lower part of the lifting power transmission component 37 is provided with a second connecting part 371 that connects to the first connecting part 3322. The second connecting part 371 and the first connecting part 3322 are connected by a snap-fit ​​connection, but welding, gluing, or other connection methods are also possible. The second connecting part 371 is provided with several power transmission arms 372 that connect to the blade mesh assembly 21. The blade mesh connector 212 is provided with a protruding interface 214, which is sleeved on the power transmission arm 372 and rotates in conjunction with it, and can rise and fall along the axial direction of the power transmission arm 372. The power output blade shaft assembly 36 has an elastic support member, which can be a spring structure.

[0054] The lower part of the machine body power input component 34 of the present invention is provided with an input interface 342 adapted to the machine body cutter shaft for power transmission. The multi-stage reduction planetary gear set 33 and the reduction reversing planetary gear set 32 ​​are sequentially fitted into the differential reversing component housing 31. The machine body power input component 34 is connected to the reduction reversing planetary gear set 32 ​​through the first tooth profile 341 of its upper part that meshes with the first planetary gear 323 of the reduction reversing planetary gear set 32. The reduction reversing planetary gear set 32 ​​is connected to the multi-stage reduction planetary gear set 32 ​​through the second tooth profile 3221 of the rotatable gear ring 322 meshing with the second planetary gear 333 at the end of the multi-stage reduction planetary gear set 33. The connection between the star gear set 33 and the lifting power transmission component 37 is achieved by the first connecting part 3322 of the first sequential rotatable planetary carrier 332 of the multi-stage deceleration planetary gear set 33. The lifting power transmission component 37 is provided with a power transmission arm 371 on the upper part, and a power output blade shaft set 36 is fitted on the upper part of the power transmission shaft 35 to achieve a rigid connection between the two. The power transmission shaft 35 passes through the multi-stage deceleration planetary gear set 33 and the deceleration reversing planetary gear set 32 ​​in sequence and is connected to the machine body power input component 34. The power transmission shaft 35 and the multi-stage deceleration planetary gear set 33 and the deceleration reversing planetary gear set 32 ​​generate a non-interfering relative rotational motion.

[0055] The power input component 34 of the present invention drives the power output cutter shaft assembly 36 to rotate via the power transmission shaft 35. The power output cutter shaft assembly 36, in turn, drives the moving cutter assembly 22 to rotate at high speed in the same direction as the power of the machine body through the mating interface 223 at the bottom of the moving cutter body 222, thereby realizing the transmission of cutting power. At the same time, the power input component 34 of the machine body, through the setting of the first tooth profile 341, drives the first planetary gear 323 of the deceleration and reversing planetary gear set 32 ​​to rotate in the opposite direction. The first planetary gear 323, in turn, drives the rotatable gear ring 322 to rotate in the opposite direction of the power direction of the power input component 34 of the machine body (since the number of teeth of the first tooth profile 341 above the power input component of the machine body is less than the number of teeth of the first planetary gear 323 and the fixed planetary carrier 321 is fixed, the power deceleration and reversal are thus realized according to the principle of the planetary gear set). After the power is reduced and reversed through the first stage of the speed reduction and reversal planetary gear set 32, the power is transmitted to the multi-stage speed reduction planetary gear set 33 via the second tooth profile 3221 above the rotatable ring gear 322. After passing through the multi-stage speed reduction planetary gear set 33, the power is output through the first connecting part 3322 of the first sequential rotatable planetary carrier 332 from top to bottom (since the fixed ring gear 331 of the multi-stage speed reduction planetary gear set 33 is fixed, and the number of teeth of the second tooth profile 3221 above the rotatable ring gear 322 is less than the number of teeth of the second planetary gear 333, according to the principle of planetary gear sets, the power achieves multi-stage speed reduction and rotation in the same direction relative to the rotatable ring gear 322 after passing through the multi-stage speed reduction planetary gear set 33). Then the power is transmitted to the lifting power transmission component 37 through the first connecting part 3322 of the rotatable planetary carrier 332, so that the lifting power transmission component 37 rotates at a low speed and in the opposite direction relative to the fuselage power. The lifting power transmission component 37 transmits power to the blade net assembly 21 through the protruding interface 214 of the blade net connector 212 via the power transmission arm 372. The blade net assembly 21 is always supported by the elastic force generated by the power output blade shaft assembly 36, so that the track 213 around the blade net connector 212 is always in contact with the internal protrusion 11 of the head cover 1. Therefore, the blade net assembly 21 rotates in a differential reverse direction according to the power of the machine body and rotates in a periodic axial lifting and lowering manner.

[0056] This invention proposes a novel cutting paradigm in the field of nose hair trimming, which enables the original static blade mesh to generate a composite motion of "low-speed reverse rotation" and "axial lifting and lowering". It solves the problems of trimming blind spots and difficulty in capturing hairs from a mechanistic level, thus forming a revolutionary cutting form. Through the reverse rotation and axial lifting and lowering of the blade mesh, a dynamic and three-dimensional cutting space is formed, which creates a true "active hair-finding" effect. It can effectively guide nose hairs with different growth directions and effectively capture various difficult-to-handle nose hairs (curved, attached to the inner wall, mismatched with the angle of the blade mesh slot, and soft nose hairs).

[0057] This invention designs and implements a dedicated transmission mechanism that precisely converts a single input power into dual-path differential output and regular operation within the compact space of a nose hair trimmer, thereby significantly improving cutting efficiency and success rate. The dynamically rotating blade greatly expands the effective cutting range and achieves full coverage, eliminating the need for users to frequently adjust the angle manually to complete the trimming. The operation is simpler and more convenient, and the effect is more thorough.

[0058] The modular design of this invention enhances commercial value by highly integrating the core mechanism into the nose hair head component, making it an independent "functional module." This not only allows it to be sold separately as a high-performance accessory, compatible with multiple models and reducing user replacement and upgrade costs, but also expands the product's market reach and increases its commercial value.

[0059] This invention is both precise and easy to clean and maintain. The head cover and differential reversing component can be disassembled separately, achieving a highly efficient modular design. While realizing complex functions, it also ensures that users can easily disassemble, clean, and assemble it for use, solving hygiene hazards and extending service life.

[0060] The segmented design of the blade mesh in this invention effectively reduces manufacturing difficulty. In existing technologies, the blade mesh is a stretched metal part with a relatively high overall height. Due to the deep machining depth, this results in high machining difficulty and low yield. This invention decomposes the blade mesh assembly into the blade mesh and its connecting parts, significantly reducing the forming depth of the metal parts, thereby significantly reducing machining difficulty, improving production yield, and enhancing manufacturing feasibility. The segmented blade mesh significantly saves materials and manufacturing costs. Based on the above segmented design, not only is the processing technology simplified, but the amount of metal material used in a single blade mesh assembly is also directly reduced. Simultaneously, the higher production yield and simpler process work together to achieve a significant reduction in the overall manufacturing cost of the product, making it highly competitive in the market.

[0061] Example 2

[0062] See Figure 12 , Figure 13 This embodiment provides a nose hair trimmer, including a body 4 and an active hair-finding nose hair head assembly as described in Embodiment 1. The differential speed reversing assembly 3 of the active hair-finding nose hair head assembly is connected to the body 4. The differential speed reversing assembly 3 can be disassembled and fixed to the body 4 by engaging with a body slot 42 on the body via a lower rotating buckle 39. The body power input component 34 of the differential speed reversing assembly 3 is connected to the body cutter shaft 41.

[0063] The high-speed power output from the body 4 of the present invention is transmitted to the body power input component 34 in the nose hair head assembly through the body cutter shaft 41.

[0064] The structure and function of the active whisker-finding nose hair tip assembly can be referred to in Embodiment 1.

[0065] Example 3

[0066] See Figure 14 , Figure 15 The difference between this embodiment and Embodiment 2 is that the differential reversing component 3 of the active whisker-finding nose hair head assembly is integrated into the machine body 4. Making the machine body's cutter shaft and power transmission shaft into a single structure results in higher integration, fewer parts, and lower cost.

[0067] The remaining structures and functions can be referred to in Embodiment 1.

Claims

1. An active whisker-finding nose hair head assembly, comprising a head cover and a blade assembly, wherein the blade assembly includes a blade mesh assembly and a moving blade assembly, the moving blade assembly being rotatably mounted inside the blade mesh assembly, characterized in that: The blade mesh assembly is rotatable relative to the head cover and can be periodically axially raised and lowered within the head cover. The blade mesh assembly and the moving blade assembly have a differential speed reversal relationship.

2. The active whisker-finding nose hair tip assembly according to claim 1, characterized in that: The blade mesh assembly includes a separate blade mesh and a blade mesh connector. The blade mesh connector has a periodically undulating track, and the inside of the head cover has an internal protrusion that cooperates with the track to periodically raise and lower the blade mesh assembly.

3. The active whisker-finding nose hair tip assembly according to claim 2, characterized in that: Both the blade mesh assembly and the moving blade assembly are connected to the machine body blade shaft via a differential reversing assembly, and the head cover is connected to the differential reversing assembly.

4. The active whisker-finding nose hair tip assembly according to claim 3, characterized in that: The differential reversing assembly includes a differential reversing assembly housing. A machine body power input component connected to the machine body's cutter shaft is installed within the housing. The machine body power input component is connected to a power output cutter shaft assembly via a power transmission shaft. The power output cutter shaft assembly is connected to the moving cutter assembly. A speed-reducing reversing planetary gear set is connected to the power input component. A multi-stage speed-reducing same-direction planetary gear set is connected to the output end of the multi-stage speed-reducing same-direction planetary gear set. A lifting power transmission component is connected to the output end of the multi-stage speed-reducing same-direction planetary gear set. The lifting power transmission component is connected to the cutter head assembly.

5. The active whisker-finding nose hair tip assembly according to claim 4, characterized in that: The speed reduction and reversing planetary gear set includes a fixed planetary carrier fixed in the differential reversing component housing. A rotatable ring gear that can rotate around the central axis of the power transmission shaft is mounted on the fixed planetary carrier. Multiple first planetary gears that mesh with the first tooth profile on the fuselage power input component are mounted on the fixed planetary carrier. The outer sides of the multiple first planetary gears mesh with the inner ring gear of the rotatable ring gear.

6. The active whisker-finding nose hair tip assembly according to claim 4, characterized in that: The multi-stage speed reduction planetary gear set includes a fixed gear ring fixed in the housing of the differential reversing component. The fixed gear ring is equipped with multiple rotatable planetary carriers that can rotate around the central axis of the power transmission shaft. Each rotatable planetary carrier is equipped with multiple second planetary gears whose outer sides mesh with the inner side of the fixed gear ring. The inner sides of the multiple second planetary gears in the bottom layer mesh with the second tooth profile on the rotatable gear ring. The inner sides of the multiple second planetary gears in the middle layer mesh with the third tooth profile on the adjacent lower rotatable planetary carrier. The uppermost rotatable planetary carrier is provided with a first connecting part connected to the lifting power transmission component.

7. The active whisker-finding nose hair tip assembly according to claim 4, characterized in that: The lower part of the lifting power transmission component is provided with a second connecting part that is connected to the first connecting part, and the second connecting part is provided with a plurality of power transmission arms that are connected to the blade net assembly.

8. The active whisker-finding nose hair tip assembly according to claim 7, characterized in that: The blade mesh connector is provided with a protruding interface, which is sleeved on the power transmission arm and rotates in conjunction with it, and can be raised and lowered along the axial direction of the power transmission arm.

9. The active whisker-finding nose hair tip assembly according to claim 4, characterized in that: The power output cutter shaft assembly has an elastic support member.

10. A nose hair trimmer, characterized in that: The device includes a body and an active whisker-finding nose hair head assembly as described in any one of claims 1-9, wherein the differential reversing assembly of the active whisker-finding nose hair head assembly is connected to or integrated into the body.

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