Nasal hair knife structure
By employing a coaxial design and detachable connection method in the nose hair trimmer structure, the noise problem caused by coaxiality deviation of the parts is solved, the trimming efficiency and precision are improved, the service life is extended, and the user experience is enhanced.
Patent Information
- Application Number
- CN202520396994.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-08
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-03-08
AI Technical Summary
Existing nose hair trimmers cannot guarantee the coaxiality between parts during the production and installation process, resulting in noise and a decline in user experience after long-term use.
By coaxially arranging the stationary tool, moving tool, and moving tool holder with the positioning sleeve, and adopting a design that allows for detachable connection between the snap-fit plate and the stationary tool holder, the coaxiality of the parts is ensured, structural stability and fit are enhanced, and wear is reduced.
It improves the efficiency and precision of nose hair trimming, extends product life, and makes cleaning and blade replacement more convenient, thus enhancing the user experience.
Smart Images

Figure CN223812113U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hair trimming equipment technical field, concretely relates to a nasal hair knife structure. BACKGROUND
[0002] In prior art, the nasal hair knife cannot guarantee the coaxiality between parts during production and installation process, so that the deviation of coaxiality between parts of the finished product nasal hair knife will occur after long-term use, thereby producing noise and affecting the use experience. SUMMARY
[0003] Therefore, the utility model provides a nasal hair knife structure.
[0004] To achieve the above object, the utility model provides the following technical scheme:
[0005] A nasal hair knife structure, comprising a static knife installed on a static knife seat and a dynamic knife installed on a dynamic knife seat, the dynamic knife seat is placed in the cavity of the static knife seat and the dynamic knife is attached to the static knife; a positioning sleeve coaxially arranged with the motor output shaft driving the dynamic knife seat to rotate is arranged in the cavity of the static knife seat, the static knife, the dynamic knife and the dynamic knife seat are on the same axis with the positioning sleeve, and one end of the dynamic knife seat passes through the positioning sleeve and synchronously links with the driving mechanism; a clamping plate is arranged at the bottom of the static knife seat to block the cavity, so that the dynamic knife and the dynamic knife seat can be rotatable and placed in the static knife seat and combined with the static knife seat as a whole, the clamping plate is detachably connected with the static knife seat, and the static knife, the static knife seat, the dynamic knife and the dynamic knife seat combined as a whole can be detachably connected and fixed with the machine body.
[0006] Preferably, the clamping plate has a static knife seat mounting portion, a positioning sleeve abutting portion and an adapter seat mounting portion, the static knife seat mounting portion is detachably connected with the static knife seat, the positioning sleeve abutting portion abuts against the side end face of the positioning sleeve to limit the axial position of the positioning sleeve in the cavity of the static knife seat, the adapter seat is arranged on the side of the clamping plate away from the static knife seat, and the adapter seat mounting portion is connected with the adapter seat.
[0007] Preferably, the dynamic knife seat comprises a dynamic knife seat body and a power linkage seat, the power linkage seat is provided with an external driving mechanism on the side away from the dynamic knife seat, a transmission groove is formed in the dynamic knife seat, one end of the power linkage seat extends into the transmission groove and is connected with the dynamic knife seat body, a clamping port is formed in the groove wall of the transmission groove, a clamping end is formed on the end of the power linkage seat extending into the transmission groove and corresponding to the clamping port, the clamping end extends into the clamping port and is clamped and fixed with the dynamic knife seat, and the end of the power linkage seat away from the dynamic knife seat extends through the clamping plate and is connected with the external driving mechanism.
[0008] Preferably, the moving cutter holder has a moving cutter mounting portion and a positioning sleeve connecting portion, the moving cutter mounting portion is protruded at the center of the top end of the positioning sleeve connecting portion, the positioning sleeve is sleeved on the positioning sleeve connecting portion and connected with the moving cutter holder, the moving cutter is mounted on the moving cutter mounting portion, and a positioning sleeve limiting structure is arranged between the moving cutter mounting portion and the positioning sleeve connecting portion to limit the axial position of the positioning sleeve on the positioning sleeve connecting portion.
[0009] Preferably, the abutting portion of the positioning sleeve has a plurality of abutting ends protruded at one end of the positioning sleeve, and the adjacent abutting ends are arranged at equal intervals, and the abutting ends abut against one side end surface of the positioning sleeve.
[0010] Preferably, the adapter seat comprises an upper seat body, a lower seat body and a hook connecting piece, the upper seat body is connected with the lower seat body and the static cutter holder respectively, the hook connecting piece is arranged on the lower seat body, the adapter seat mounting portion protrudes a hook end in the direction of the hook connecting piece, the hook connecting piece has an arc-shaped hook portion corresponding to the hook end, the arc-shaped hook portion extends in the direction of the clamping plate, the arc-shaped hook portion is clamped and fixed with the hook end, and the upper seat body presses the part of the hook connecting piece located on the lower seat body.
[0011] Preferably, at least three positioning ribs are protruded on the inner wall of the cavity of the static cutter holder, and the positioning ribs abut against the positioning sleeve and are in interference fit with the outer wall of the positioning sleeve.
[0012] The beneficial effects of the utility model lie in that the static cutter, the moving cutter and the moving cutter holder are all arranged on the same axis with the positioning sleeve, the coaxiality of the product is ensured, noise is prevented from occurring in the working process of the product when the coaxiality deviates, the fitting degree of the moving cutter and the static cutter is ensured to be more compact in the rotating process of the moving cutter, and the efficiency and precision of trimming nose hair are improved. The design of the positioning sleeve not only enhances the stability of the structure, but also effectively reduces the wear caused by long-term use and prolongs the service life of the product. In addition, the detachable connection mode of the clamping plate and the static cutter holder makes the user more convenient when cleaning or replacing the blade, and improves the practicality and user experience of the product. BRIEF DESCRIPTION OF DRAWINGS
[0013] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creating labor.
[0014] ATTACHMENT Figure 1 It is a structural schematic diagram of the utility model;
[0015] ATTACHMENTFigure 2 is a sectional view of the utility model;
[0016] attached Figure 3 is a structural exploded schematic view of the utility model;
[0017] attached Figure 4 is a static knife seat structure schematic view. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0019] The utility model will be further described below with reference to the drawings in the description.
[0020] The utility model provides the following technical scheme:
[0021] As shown in the attached Figures 1-4 The utility model discloses a nose hair knife structure, including installing on static knife seat 2 static knife 1 and installing on dynamic knife seat 4 dynamic knife 3, dynamic knife seat 4 is placed in the containing cavity 5 in static knife seat 2 and makes dynamic knife 3 and static knife 1 and is pasted together, and the containing cavity 5 in static knife seat 2 is equipped with the positioning sleeve 6 of the coaxial arrangement of the motor output shaft of driving dynamic knife seat 4 rotation, static knife 1, dynamic knife 3 and dynamic knife seat 4 all are in the same axis with positioning sleeve 6, and the one end of dynamic knife seat 4 passes through positioning sleeve 6 and is synchronous linkage with driving mechanism (not shown in the figure), is equipped with the clamping plate 7 of plugging containing cavity 5 in static knife seat 2 bottom and making dynamic knife 3 and dynamic knife seat 4 rotatable and being placed in static knife seat 2 and being combined with static knife seat 2 as a whole, and the clamping plate 7 is detachably connected with static knife seat 2, and can make the static knife 1, static knife seat 2 and dynamic knife 3 and dynamic knife seat 4 combined as a whole and machine body detachable connection fixed. Specifically, in the design, by static knife 1, dynamic knife 3 and dynamic knife seat 4 all are in the same axis with positioning sleeve 6, guarantee the coaxiality of product, prevent when the coaxiality produces deviation, in the process of product work, the noise appears, and ensure that dynamic knife 3 is more closely in the process of rotation and static knife 1's degree of fit, improves the efficiency and precision of nose hair trimming. The design of positioning sleeve 6 not only enhances the stability of structure, but also effectively reduces the wear and tear due to long-term use, prolongs the service life of product. In addition, the detachable connection mode of clamping plate 7 and static knife seat 2 makes the user more convenient when cleaning or replacing the blade, improves the practicability and user experience of product.
[0022] Further, the clamping plate 7 has a static cutter seat mounting portion 8, a positioning sleeve abutting portion 9 and a adapter seat mounting portion 10. The static cutter seat mounting portion 8 is detachably connected with the static cutter seat 2. The positioning sleeve abutting portion 9 abuts against one side end surface of the positioning sleeve 6 to limit the axial position of the positioning sleeve 6 in the accommodating cavity 5 of the static cutter seat 2. The adapter seat 11 is arranged on the side of the clamping plate 7 away from the static cutter seat 2. The adapter seat mounting portion 10 is connected with the adapter seat 11. Specifically, in the embodiment, the adapter seat 11 is fixedly connected with the machine body, and the clamping plate 7 and the components such as the static cutter seat 2 and the dynamic cutter seat 4 connected with the clamping plate 7 are integrally mounted on the machine body through the adapter seat mounting portion 10. The static cutter seat mounting portion 8 and the static cutter seat 2 are connected in a detachable connection mode such as threaded connection or buckle connection, so that the user can detach the static cutter seat 2 and the components thereon according to needs for cleaning or replacement. The design of the positioning sleeve abutting portion 9 ensures the stability of the axial position of the positioning sleeve 6 in the accommodating cavity 5 of the static cutter seat 2, and avoids the decrease of the fitting degree between the dynamic cutter 3 and the static cutter 1 due to the loosening of the positioning sleeve 6, thereby ensuring the efficiency and precision of nose hair trimming. Meanwhile, the design of the adapter seat 11 not only enhances the structural strength of the product, but also provides an interface for connecting with the machine body, so that the installation and disassembly of the product are more convenient and fast.
[0023] Further, the dynamic cutter seat 4 comprises a dynamic cutter seat body 12 and a power linkage seat 13. The power linkage seat 13 is provided with an external driving mechanism on the side away from the dynamic cutter seat 4. A transmission groove 14 is formed in the dynamic cutter seat 4. One end of the power linkage seat 13 extends into the transmission groove 14 and is connected with the dynamic cutter seat body 12. A clamping port 15 is formed in the groove wall of the transmission groove 14. A clamping end 16 is protruded on the end of the power linkage seat 13 extending into the transmission groove 14 and corresponds to the clamping port 15. The clamping end 16 extends into the clamping port 15 and is clamped and fixed with the dynamic cutter seat 4. The end of the power linkage seat 13 away from the dynamic cutter seat 4 penetrates through the clamping plate 7 and is connected with the external driving mechanism. Specifically, in the embodiment, the power linkage seat 13 is clamped and fixed with the clamping port 15 of the dynamic cutter seat body 12 through the clamping end 16. This clamping mode not only has a simple structure, but also has stable connection, and can effectively transmit the power of the external driving mechanism to the dynamic cutter seat body 12 to drive the dynamic cutter 3 to rotate and trim. The design of the transmission groove 14 provides a guiding and positioning function for the connection between the power linkage seat 13 and the dynamic cutter seat body 12, and ensures the accuracy and stability of power transmission. Meanwhile, the end of the power linkage seat 13 away from the dynamic cutter seat 4 penetrates through the clamping plate 7 and is connected with the external driving mechanism. This connection mode makes the installation and disassembly of the dynamic cutter seat 4 more flexible and convenient, and is convenient for the user to maintain and replace. In the embodiment, the external driving mechanism can adopt a driving device such as a motor to realize the transmission and conversion of power.
[0024] Further, the moving cutter holder 4 has a moving cutter mounting portion 17 and a positioning sleeve connecting portion 18, the moving cutter mounting portion 17 is protrudedly formed at the center of the top end of the positioning sleeve connecting portion 18, the positioning sleeve 6 is sleeved on the positioning sleeve connecting portion 18 and is connected with the moving cutter holder 4, the moving cutter 3 is mounted on the moving cutter mounting portion 17, and a positioning sleeve limiting structure 19 is arranged between the moving cutter mounting portion 17 and the positioning sleeve connecting portion 18, which limits the axial position of the positioning sleeve 6 on the positioning sleeve connecting portion 18. Specifically, in the embodiment, the positioning sleeve limiting structure 19 is disc-shaped, and the edge thereof is protrudedly formed as a limiting clamping edge, which is in contact with the inner wall of the positioning sleeve 6, so as to limit the axial position of the positioning sleeve 6. The design of the limiting structure not only enhances the stability of the connection between the moving cutter holder 4 and the positioning sleeve 6, but also effectively prevents the axial displacement of the positioning sleeve 6 during use, thereby ensuring the stability and precision of the trimming tool. At the same time, the moving cutter mounting portion 17 is protrudedly arranged at the center of the top end of the positioning sleeve connecting portion 18, which provides accurate positioning for the installation of the moving cutter 3, so that the moving cutter 3 can be stably mounted on the moving cutter holder 4, thereby further improving the trimming efficiency and trimming quality. The arrangement of the positioning sleeve 6 not only facilitates the installation and disassembly of the moving cutter 3, but also effectively protects the moving cutter holder 4, thereby prolonging the service life of the trimming tool.
[0025] Further, the positioning sleeve abutting portion 9 has a plurality of abutting ends 20 protrudedly formed on one end thereof close to the positioning sleeve 6, and the adjacent abutting ends 20 are arranged at equal intervals, and the abutting ends 20 abut against one side end surface of the positioning sleeve 6. Specifically, in the embodiment, the design of the abutting ends 20 increases the contact area between the abutting ends 20 and the positioning sleeve 6, thereby improving the stability of the contact. The equal interval arrangement of the abutting ends 20 ensures that the positioning sleeve 6 can be uniformly distributed when subjected to force, thereby avoiding damage or deformation caused by excessive local force.
[0026] Further, the adapter seat 11 comprises an upper seat body 21, a lower seat body 22 and a hook connecting piece 23, the upper seat body 21 is connected with the lower seat body 22 and the static blade seat 2 respectively, the hook connecting piece 23 is arranged on the lower seat body 22, the adapter seat mounting part 10 protrudes towards the hook connecting piece 23 to form a hook end 24, the hook connecting piece 23 has an arc-shaped hook part 25 corresponding to the hook end 24, the arc-shaped hook part 25 extends towards the clamping plate 7 to form, the arc-shaped hook part 25 is clamped and fixed between the hook end 24, and the part of the hook connecting piece 23 on the lower seat body 22 is pressed by the upper seat body 21. Specifically, in this embodiment, the design of the adapter seat 11 realizes the stable connection between the upper seat body 21, the lower seat body 22 and the static blade seat 2. The upper seat body 21 as the core component of the connection is tightly connected with the lower seat body 22 and the static blade seat 2 respectively, which ensures the stability and precision of the trimming tool during use. The hook connecting piece 23 is arranged on the lower seat body 22, which not only enhances the overall structural strength of the adapter seat 11, but also provides reliable support for the fixation of the hook end 24. The hook end 24 protrudes towards the hook connecting piece 23 to form, and realizes precise clamping and fixation with the arc-shaped hook part 25, this design method is not only simple and easy to implement, but also greatly improves the stability of the connection. The arc-shaped hook part 25 extends towards the clamping plate 7 to form, its shape and size are carefully designed to ensure perfect fit with the hook end 24. During clamping, the arc-shaped hook part 25 can smoothly slide into the hook end 24 to realize stable clamping and fixation. At the same time, the design of the arc-shaped hook part 25 also has a certain elasticity, which can adapt to different sizes and shapes of the hook end 24, improving the applicability and flexibility of the adapter seat 11. The part of the hook connecting piece 23 on the lower seat body 22 is pressed by the upper seat body 21, which further enhances the overall structural strength of the adapter seat 11. This pressing method not only ensures the stable position of the hook connecting piece 23 in the adapter seat 11, but also improves the carrying capacity of the adapter seat 11 when subjected to force. During the use of the trimming tool, the adapter seat 11 can withstand large shear force and impact force, ensuring the stability and durability of the trimming tool.
[0027] Further, at least three positioning ribs 26 are formed on the inner wall of the accommodating cavity 5 of the static cutter seat 2, and the positioning ribs 26 abut against the positioning sleeve 6 and are in interference fit with the outer wall of the positioning sleeve 6. Specifically, in the embodiment, the design of the positioning ribs 26 not only enhances the connection strength between the static cutter seat 2 and the positioning sleeve 6, but also ensures the stability of the positioning sleeve 6 after installation. Through the interference fit between the positioning ribs 26 and the outer wall of the positioning sleeve 6, the radial movement of the positioning sleeve 6 during use is effectively prevented, and the accuracy and stability of the trimming tool are further improved. The positioning ribs 26 are designed to be at least three, which not only ensures sufficient connection strength, but also makes the structure relatively simple, facilitating processing and installation. In specific embodiments, the specific shape and size of the positioning ribs 26 can be adjusted according to actual needs to achieve the best fit effect and stability.
[0028] The above description of disclosed embodiments enables those skilled in the art to carry out or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A nose hair trimmer structure, comprising a stationary blade mounted on a stationary blade holder and a movable blade mounted on a movable blade holder, wherein the movable blade holder is placed in a cavity within the stationary blade holder and the movable blade is in contact with the stationary blade; characterized in that: The cavity inside the stationary tool holder is equipped with a positioning sleeve that is coaxially arranged with the output shaft of the motor that drives the moving tool holder to rotate. The stationary tool, the moving tool, and the moving tool holder are all on the same axis as the positioning sleeve, and one end of the moving tool holder passes through the positioning sleeve and is synchronously linked with the drive mechanism. At the bottom of the stationary tool holder, there is a locking plate that seals the cavity, allowing the moving tool and the moving tool holder to rotatably be placed inside the stationary tool holder and combined with the stationary tool holder. The locking plate is detachably connected to the stationary tool holder and can detachably connect and fix the combined stationary tool, stationary tool holder, moving tool, and moving tool holder to the machine body.
2. The nose hair trimmer structure according to claim 1, characterized in that: The snap-fit plate has a stationary tool holder mounting part, a positioning sleeve abutment part, and an adapter mounting part. The stationary tool holder mounting part is detachably connected to the stationary tool holder. The positioning sleeve abutment part abuts against one end face of the positioning sleeve to limit the axial position of the positioning sleeve in the cavity of the stationary tool holder. An adapter is provided on the side of the snap-fit plate away from the stationary tool holder, and the adapter mounting part is connected to the adapter.
3. The nose hair trimmer structure according to claim 1, characterized in that: The moving tool holder includes a moving tool holder body and a power linkage seat. An external drive mechanism is provided on the side of the power linkage seat away from the moving tool holder. A transmission groove is formed on the moving tool holder. One end of the power linkage seat extends into the transmission groove and connects to the moving tool holder body. A locking interface is formed on the groove wall of the transmission groove. A locking end is formed on the end of the power linkage seat that extends into the transmission groove, corresponding to the locking interface. The locking end extends into the locking interface and locks and fixes with the moving tool holder. The end of the power linkage seat away from the moving tool holder passes through the locking plate and connects to the external drive mechanism.
4. The nose hair trimmer structure according to claim 1, characterized in that: The moving tool holder has a moving tool mounting part and a positioning sleeve connecting part. The moving tool mounting part protrudes from the center of the top of the positioning sleeve connecting part. The positioning sleeve is sleeved on the positioning sleeve connecting part and connects with the moving tool holder. The moving tool is mounted on the moving tool mounting part. A positioning sleeve limiting structure is provided between the moving tool mounting part and the positioning sleeve connecting part. The positioning sleeve limiting structure limits the axial position of the positioning sleeve on the positioning sleeve connecting part.
5. The nose hair trimmer structure according to claim 2, characterized in that: The positioning sleeve abutting part protrudes at one end near the positioning sleeve to form several abutting ends, and the adjacent abutting ends are equally spaced. The abutting ends abut against one side end face of the positioning sleeve and connect with the positioning sleeve.
6. The nose hair trimmer structure according to claim 2, characterized in that: The adapter includes an upper body, a lower body, and a hook connector. The upper body is connected to the lower body and the stationary knife seat. The hook connector is disposed on the lower body. The mounting part of the adapter protrudes towards the hook connector to form a hook end. The hook connector has an arc-shaped hook portion corresponding to the hook end. The arc-shaped hook portion extends towards the snap-fit plate. The arc-shaped hook portion and the hook end are snapped together and fixed. The upper body presses against the portion of the hook connector located on the lower body.
7. The nose hair trimmer structure according to claim 1, characterized in that: At least three positioning ribs protrude from the inner wall of the cavity of the stationary knife holder, and the positioning ribs abut against the positioning sleeve and are interference-fitted with the outer wall of the positioning sleeve.