A nail clipper sharpener head assembly and an electric nail clipper
By designing a nail clipper head assembly with a rotating blade barrel, the problem of low compatibility of electric nail clippers is solved, enabling flexible nail trimming and grinding operations suitable for different users and nail shapes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN SHENLI WEIYE TECH CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-07-21
Smart Images

Figure CN224522590U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nail clipper technology, specifically to a nail clipper head assembly and its electric nail clipper. Background Technology
[0002] In the field of personal care, nail clippers are an essential daily tool. Currently, nail clippers on the market are mainly divided into two categories: manual and electric. Manual nail clippers rely on manual pressing and cutting, which is difficult for the elderly, children, or those with weak hand strength to operate. While electric nail clippers solve the problem of saving effort, the blades of electric nail clippers are of a fixed size. This means that it is inconvenient for children or adults to adjust the trimming holes on the blade. Since different users have significantly different nail sizes and thicknesses, the fixed-size trimming holes on the blade cannot adapt to diverse needs, resulting in inaccurate cutting or difficulty in covering the nail. This leads to the low adaptability of existing electric nail clippers. Utility Model Content
[0003] This invention provides a nail clipper head assembly and an electric nail clipper to solve the problems mentioned in the background art.
[0004] To achieve the above-mentioned objectives, this utility model adopts the following technical solution:
[0005] A nail clipper head assembly, characterized in that it comprises: a roller blade including a grinding section and a trimming section; and a blade cylinder rotatably sleeved on the outer periphery of the roller blade, wherein at least two nail processing areas are distributed on the outer peripheral sidewall of the blade cylinder, and each nail processing area has a grinding hole corresponding to the grinding section and a trimming hole corresponding to the trimming section; wherein the sizes of the trimming hole and the grinding hole in the different nail processing areas are different, and the blade cylinder is configured to switch the nail processing area of the target size to the working position by rotating around the roller blade.
[0006] Preferably, it also includes a knob, which is fixedly connected to the end of the blade barrel.
[0007] Preferably, the knob has a protrusion on its circumferential sidewall.
[0008] Preferably, the grinding part is a nail grinding block.
[0009] Preferably, the trimming part is a nail clipper.
[0010] Preferably, the nail treatment area has three sections.
[0011] Preferably, the three nail treatment areas are distributed along the circumference of the blade barrel.
[0012] Preferably, the rotation axis of the cutter barrel coincides with the axis of the hob.
[0013] An electric nail clipper includes a housing and a nail clipper head assembly, wherein a top shell is fixedly connected to the housing, and a top cover is fitted around the outer periphery of the top shell.
[0014] Preferably, it further includes a first drive motor, the fixed end of which is fixedly connected to the inner sidewall of the housing, and the drive shaft of the first drive motor is fixedly connected to the hob through a transmission assembly.
[0015] The advantages of this utility model over the prior art are as follows:
[0016] The nail clipper head assembly features at least two different sized trimming holes on the circumferential side wall of the blade barrel. Users of different ages and nail sizes can trim their nails without changing the device; simply rotating the blade barrel aligns the appropriate size trimming hole with the trimming head. This easily handles various scenarios, such as children's small nails and adults' thick nails, significantly improving adaptability to different user groups, including children and adults, as well as diverse nail shapes, making nail trimming and filing operations more flexible.
[0017] After trimming, the nails can be directly inserted into the grinding hole without additional tools or adjustment of the blade barrel, thanks to the grinding hole and grinding part on the blade barrel. The rotating roller drives the grinding block to grind and polish the nails. Attached Figure Description
[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:
[0019] Figure 1 This invention provides a schematic diagram of a nail clipper sharpening head assembly.
[0020] Figure 2 This is a schematic diagram of the hobbing cutter, trimming section, grinding section, and knob in this utility model.
[0021] Figure 3 A three-dimensional schematic diagram of an electric nail clipper provided by this utility model;
[0022] Figure 4 This utility model provides a structural diagram of an electric nail clipper with the top cover removed;
[0023] Figure 5 This utility model provides a structural diagram of an electric nail clipper with the top cover removed;
[0024] Figure 6 This utility model provides a structural diagram of an electric nail clipper with the outer shell, top shell, and top cover removed.
[0025] Reference numerals: 1. Hob; 2. Trimming section; 3. Cutter barrel; 5. Trimming hole; 6. Grinding section; 7. Grinding hole; 8. Outer shell; 9. Top shell; 10. Top cover; 11. Knob; 12. Protrusion; 13. First drive motor; 14. Drive gear; 15. Large gear; 16. Small gear; 17. First gear; 18. Second gear; 19. Driven gear; 20. First rotating shaft; 21. Connecting shaft; 22. Second drive motor; 23. Grinding rod; 24. Polishing disc; 25. Light source assembly. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. The following description of at least one exemplary embodiment is illustrative in nature and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as exemplary rather than limiting. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.
[0029] like Figure 1 and Figure 2As shown, an embodiment of the nail clipper head assembly of the present invention includes: a roller 1, comprising a grinding part 6 and a trimming part 2. The grinding part 6 and the trimming part 2 can be two separate components. For example, the grinding part 6 can be a nail grinding block, and the trimming part 2 can be a nail trimmer.
[0030] The blade cylinder 3 is rotatably sleeved on the outer periphery of the roller 1. The rotation axis of the blade cylinder 3 coincides with the axis of the roller 1. At least two nail processing areas are distributed on the outer periphery sidewall of the blade cylinder 3. Each nail processing area is provided with a grinding hole 7 corresponding to the grinding part 6 and a trimming hole 5 corresponding to the trimming part 2. The at least two nail processing areas are distributed along the circumferential direction of the blade cylinder.
[0031] In this embodiment, three nail processing areas are provided, and the sizes of the trimming holes 5 and the filing holes 7 in the different nail processing areas are different. The blade barrel 3 is configured to switch the nail processing area of the target size to the working position by rotating around the roller blade 1.
[0032] The blade barrel 3 is rotatably set on the outer periphery of the roller blade 1, and the size of the trimming holes 5 in different nail treatment areas is different from each other, which makes it easy to select the appropriate trimming hole 5 according to the different sizes of nails of different users. This makes it easy to switch the nail treatment area of the target size to the working position, and thus facilitates the trimming treatment of nails of different users. When the nail is inserted into the trimming hole 5, the roller blade 1 drives the trimming part 2 to rotate during rotation, and the nail trimming is completed by the shearing action of the trimming part 2.
[0033] The circumferential side wall of the blade barrel 3 is provided with a corresponding grinding hole 7. After the nail is trimmed by the trimming part 2, the trimmed nail is inserted into the grinding hole 7 without rotating the blade barrel 3. The roller 1 drives the grinding part 6 to rotate during the rotation. Since the nail is in contact with the grinding part 6, the trimmed nail is ground during the rotation of the grinding part 6, making the nail edge smooth.
[0034] It also includes a knob 11, which is fixedly connected to the end of the blade barrel 3. Since one end of the blade barrel 3 is fixedly connected to the knob 11, the user can rotate the blade barrel 3 when turning the knob 11. During the rotation of the blade barrel 3, different nail treatment areas can be switched, making it convenient to select the corresponding trimming hole 5 and filing hole 7 for nails of different sizes.
[0035] A protrusion 12 is provided on the circumferential side wall of the knob 11. Because the protrusion 12 is provided on the circumferential side wall of the knob 11, when the user operates it, he can easily apply force to rotate the knob 11 by means of the protrusion 12 on the circumferential side wall of the knob 11. The knob 11 then drives the nail clipper barrel 3 to rotate, thereby adjusting the position of the trimming holes 5 and the filing holes 7 of different sizes on the clipper barrel 3.
[0036] like Figures 3-6As shown, an embodiment of the electric nail clipper of the present invention includes a housing 8 and a nail clipper head assembly. The housing 8 is fixedly connected to a top shell 9, and a top cover 10 is fitted around the outer periphery of the top shell 9. One end of the blade cylinder 3 is rotatably connected relative to the top shell 9.
[0037] The outer shell 8 and top shell 9 of this application serve as the basic load-bearing structure of the entire device, providing stable support for the internal components. Since the top cover 10 is fitted around the outer periphery of the top shell 9, the top cover 10 can be opened to expose the top shell 9 when it is necessary to trim and file the user's nails.
[0038] It also includes a first drive motor 13, the fixed end of which is fixedly connected to the inner side wall of the housing 8, and the drive shaft of the first drive motor 13 is fixedly connected to the hob 1 through a transmission assembly.
[0039] The transmission assembly includes a driving gear 14, a large gear 15, a small gear 16, a first gear 17, a second gear 18, a driven gear 19, a first rotating shaft 20, and a connecting shaft 21;
[0040] Both the first rotating shaft 20 and the connecting shaft 21 are rotatably connected to the inner wall of the outer casing 8;
[0041] The drive gear 14 is fixedly connected to the drive shaft of the first drive motor 13;
[0042] Both the large gear 15 and the small gear 16 are fixedly connected relative to the first rotating shaft 20, and the large gear 15 meshes with the driving gear 14;
[0043] The first gear 17 and the second gear 18 are both fixedly connected to the connecting shaft 21, and the first gear 17 meshes with the pinion 16.
[0044] Driven gear 19 is fixedly connected to hob 1, and driven gear 19 meshes with second gear 18.
[0045] In this application, the first drive motor 13 is the power source, and its fixed end is securely connected to the inner wall of the housing 8, providing basic support for power output. When the first drive motor 13 starts, it drives the fixedly connected drive gear 14 to rotate. Since the large gear 15 meshes with the drive gear 14, the rotation of the drive gear 14 is transmitted to the large gear 15. Both the large gear 15 and the small gear 16 are fixed relative to the first rotating shaft 20, which is rotatably connected to the inner wall of the housing 8. Therefore, when the large gear 15 rotates, it drives the first rotating shaft 20 and the small gear 16 to rotate together. Next, the small gear 16 meshes with the first gear 17, and the rotation of the small gear 16 is transmitted to the first gear 17. The first gear 17 and the second gear 18 are fixed relative to the connecting shaft 21, which is rotatably connected to the inner wall of the housing 8, thereby driving the connecting shaft 21 and the second gear 18 to rotate. Finally, the second gear 18 meshes with the driven gear 19, which is fixed relative to the hob 1, thereby driving the hob 1 to rotate and realizing the function of electric-driven nail trimming.
[0046] The electric nail clipper also includes a second drive motor 22, a filing bar 23, and a polishing disc 24. The filing bar 23 and polishing disc 24 can be used to file or polish the nail surface. The second drive motor 22 is fixedly connected to the inner wall of the housing 8, and has a drive shaft at its top. The filing bar 23 or the polishing disc 24 is detachably connected to the drive shaft of the second drive motor 22. The filing bar 23 and the polishing disc 24 are interchangeable accessories, and the user can choose to install either the filing bar 23 or the polishing disc 24 according to their usage needs.
[0047] In this embodiment, the second drive motor 22 is the core power source for the electric nail clippers to perform grinding and polishing functions. The grinding rod 23 or the polishing disc 24 is detachably connected to the drive shaft of the second drive motor 22. When the second drive motor 22 is started, the drive shaft drives the grinding rod 23 or the polishing disc 24 to rotate synchronously. In actual use, after completing the preliminary operations such as nail trimming and grinding, the rotating grinding rod 23 or the polishing disc 24 can be used to grind or polish the nail surface.
[0048] The electric nail clipper also includes a light source assembly 25 located inside the housing 8. Its function is to illuminate the nail treatment area when using the electric nail clipper in a low-light environment, so as to ensure clear visibility of the operation.
[0049] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.
[0050] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0051] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.
[0052] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A nail clipper head assembly, characterized in that, include: The hobbing cutter (1) includes a grinding section (6) and a trimming section (2); The blade tube (3) is rotatably fitted around the outer periphery of the roller (1). At least two nail processing areas are distributed on the outer periphery sidewall of the blade tube (3). Each nail processing area is provided with a grinding hole (7) corresponding to the grinding part (6) and a trimming hole (5) corresponding to the trimming part (2). The trimming hole (5) and the filing hole (7) in different nail treatment areas are of different sizes. The blade barrel (3) is configured to switch the nail treatment area of the target size to the working position by rotating around the roller (1).
2. The nail clipper head assembly according to claim 1, characterized in that, It also includes a knob (11), which is fixedly connected to the end of the blade barrel (3).
3. The nail clipper head assembly according to claim 2, characterized in that, The knob (11) has a protrusion (12) on its circumferential side wall.
4. The nail clipper head assembly according to claim 1, characterized in that, The polishing section (6) is a nail polishing block.
5. The nail clipper head assembly according to claim 1, characterized in that, The trimming section (2) is a nail trimmer.
6. The nail clipper head assembly according to claim 1, characterized in that, There are three nail treatment areas.
7. A nail clipper head assembly according to claim 6, characterized in that, The three nail treatment areas are distributed along the circumference of the blade barrel (3).
8. The nail clipper head assembly according to claim 1, characterized in that, The rotation axis of the cutter barrel (3) coincides with the axis of the hob (1).
9. An electric nail clipper, characterized in that, It also includes a housing (8) and a nail clipper head assembly according to any one of claims 1-8, wherein the housing (8) is fixedly connected to a top shell (9), and a top cover (10) is fitted around the outer periphery of the top shell (9).
10. An electric nail clipper according to claim 9, characterized in that, It also includes a first drive motor (13), the fixed end of which is fixedly connected to the inner side wall of the housing (8), and the drive shaft of the first drive motor (13) is fixedly connected to the hob (1) through a transmission assembly.