Electric nail trimming and polishing tool
Electric nail tools that integrate cutting and filing functions use a motor to switch between reverse and forward rotation to drive a gear set, achieving automated trimming and filing. This solves the problems of difficult operation of traditional nail clippers and low efficiency of electric nail cutters, making them suitable for independent use by the elderly and disabled.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-30
- Publication Date
- 2026-03-17
AI Technical Summary
Traditional nail clippers are difficult to operate and are hard for the elderly and disabled to use independently. Existing electric nail clippers are inefficient and cannot effectively handle long nails.
Design an electric trimming and sanding tool that integrates cutting and sanding functions. The motor drives the nail clippers to cut by reversing and drives the sanding plate by rotating forward. The gear set switching function realizes automated trimming and sanding.
It improves nail trimming efficiency, reduces operational difficulty, is suitable for independent use by the elderly and disabled, and enhances ease of use and self-care ability.
Smart Images

Figure CN121667480A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of nail trimming tools, and particularly to an electric nail trimming and filing tool. Background Technology
[0002] Traditional nail clippers require close coordination between the thumb and other fingers to press the clipper cap, using leverage to complete the cutting action. Elderly people often struggle with precise control of force and angle due to stiff hand joints, easily cutting their skin. People with disabilities, such as those missing a thumb, are unable to perform the pressing action and rely entirely on others for assistance. This reliance on others due to operational difficulties can negatively impact the elderly's independence and self-esteem in the long run. Furthermore, the inconvenience of using these tools may reduce social activities for people with disabilities, exacerbating their psychological burden.
[0003] In recent years, electric nail trimming and filing tools have been introduced to the market, such as the electric nail clipper described in Chinese patent CN219374029U, which trims nails by rotating the blades via a motor. However, the working principle of the aforementioned electric nail trimming and filing tools is to trim nails by grinding them, which is inefficient when dealing with long nails. Therefore, this application proposes a novel electric nail trimming and filing tool to solve the above problems. Summary of the Invention
[0004] The purpose of this invention is to provide an electric nail trimming and filing tool, which aims to solve the technical problem of how to trim nails efficiently and in a way that is easy to use.
[0005] To achieve the above objectives, the technical solutions of the present invention are as follows:
[0006] This invention provides an electric nail trimming and filing tool, comprising: Mounting base; Nail clippers, which are mounted on the mounting base; the nail clippers are provided with jaws and a cap. A drive mechanism is mounted on the mounting base; the drive mechanism includes a motor, a gear set, a first output shaft and a second output shaft, the first output shaft being connected to a cam and the second output shaft being connected to a grinding plate. When the motor reverses, the motor is connected to the first output shaft via the gear set but not to the second output shaft, so that the cam rotates around the first output shaft and the cam presses the clamp cover when it rotates. When the motor rotates forward, the motor is connected to the second output shaft via the gear set but not to the first output shaft, so that the grinding plate rotates around the second output shaft; A control module, which is electrically connected to the motor.
[0007] Compared to existing technologies, the electric nail trimming and filing tool of this invention switches between cutting and filing functions by driving the nail clippers in both forward and reverse rotation of the motor. When the motor rotates in reverse, power is transmitted to the first output shaft via a gear set, driving the cam to rotate. The cam periodically presses the clipper cap, causing the jaws of the nail clippers to close and open, thus performing a cutting action similar to traditional nail clippers. This allows for quick cutting of longer nails, significantly improving trimming efficiency. When the motor rotates forward, the gear set switches to drive the second output shaft, driving the filing plate to rotate, which can then file and trim the edges of the cut nails. This integrated cutting and filing design not only solves the problem of low efficiency in existing electric nail clippers that only grind, but also eliminates the need for additional tool replacements, greatly improving ease of use. Furthermore, users can switch functions simply by controlling the motor rotation via the control module, making operation simple and intuitive. This is especially suitable for independent use by the elderly and disabled individuals with limited hand dexterity, effectively improving their self-care abilities.
[0008] In one embodiment, the gear set includes a driving gear, a transmission gear, a clutch female gear, a clutch female gear, a first driven gear, and a second driven gear, wherein... The drive gear is connected to the motor shaft of the motor, and the drive gear is connected to the clutch gear through the transmission gear. The clutch female gear is connected to the first rotating shaft, and the clutch male gear is connected to the second rotating shaft; the first rotating shaft is connected to the second rotating shaft through a reversing block, and the clutch female gear is also connected to the clutch male gear in a transmission connection; The first driven gear is connected to the first output shaft, and the second driven gear is connected to the second output shaft; When the motor reverses, the clutch female gear drives the clutch female gear to move counterclockwise around the first rotating shaft until the clutch female gear is connected to the first driven gear and the clutch gear is not connected to the second driven gear. When the motor rotates forward, the clutch master gear drives the clutch slave gear to move clockwise around the first rotating shaft until the clutch slave gear is connected to the second driven gear and the clutch slave gear is not connected to the first driven gear.
[0009] In one embodiment, the mounting base has a mounting side on one side and a storage side on the other side; the mounting side has the cam and the detachable nail clipper, and the storage side has the motor and the grinding plate.
[0010] In one embodiment, the mounting side is provided with a base and a limiting mechanism, the limiting mechanism abutting against the body of the nail clipper to fix the nail clipper on the base.
[0011] In one embodiment, a splash guard is provided on one side of the base, the splash guard is provided with a first threaded hole, and a second threaded hole is provided on the lower side of the base; The limiting mechanism includes a limiting block, a first limiting bolt, and a second limiting bolt. The limiting block is disposed on the base and abuts against the upper side of the clamp body. The first limiting bolt is threadedly connected to the first threaded hole and the end of the first limiting bolt abuts against the clamp body. The second limiting bolt is threadedly connected to the second threaded hole and the end of the second limiting bolt is inserted into the positioning hole of the clamp body.
[0012] In one embodiment, the base is provided with a slot located in front of the jaws, and the slot is provided with a removable anti-shear plate.
[0013] In one embodiment, the mounting base is provided with a mounting slot and a battery compartment, the mounting slot is located between the mounting side and the storage side, and the mounting slot is provided with the gear set; The battery compartment is located below the mounting slot and adjacent to the nail clipper, and the battery compartment contains a battery.
[0014] In one embodiment, the receiving side is provided with a grating plate and a through-beam photoelectric sensor, the grating plate is connected to the first output shaft, and the grating plate is provided with a notch; The through-beam photoelectric sensor is electrically connected to the control module and is used to generate a detection signal and send it to the control module when the notch is detected passing through its detection area.
[0015] In one embodiment, the mounting base is provided with a control panel and a charging terminal on its rear or front side, and both the control panel and the charging terminal are electrically connected to the control module.
[0016] In one embodiment, the cam has a rotating end and a free end. The rotating end is connected to the first output shaft, and the free end presses the clamp cover under the rotation of the cam. Attached Figure Description
[0017] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is one of the perspective views of an electric nail trimming and filing tool according to this application; Figure 2 This is a second perspective view of an electric nail trimming and filing tool according to this application; Figure 3 This is a side view of an electric nail trimming and filing tool according to this application; Figure 4 This is the third perspective view of an electric nail trimming and filing tool according to this application (removal of nail clippers); Figure 5 This is a schematic diagram of the drive mechanism of an electric nail trimming and filing tool according to this application (motor reversed); Figure 6 This is a schematic diagram of the drive mechanism of an electric nail trimming and filing tool according to this application (motor reversed); Figure 7 This is a schematic diagram of the drive mechanism of an electric nail trimming and filing tool according to this application (motor reversed); Figure 8 This is a schematic diagram of the drive mechanism (motor rotating forward) of an electric nail trimming and filing tool according to this application.
[0018] Explanation of reference numerals in the attached figures: 10 Mounting base, 110 Mounting side, 111 Base, 1111 Splash guard, 1112 Limiting block, 1113 First limiting bolt, 1114 Second limiting bolt, 1115 Slot, 1116 Anti-shear plate, 120 Storage side, 130 Mounting slot, 140 Battery compartment, 150 Battery, 20 Nail clippers, 210 Clamping jaws, 220 Clamping cover, 230 Clamping body, 30 Drive mechanism, 310 Motor, 320 Gear set, 321 Drive gear, 322 Transmission gear, 323 Clutch female gear, 3231 First rotating shaft, 3232 Second rotating shaft, 3233 Reversing block, 324 Clutch female gear, 325 First driven gear, 326 Second driven gear, 330 First output shaft, 340 Second output shaft, 350 Cam, 351 Rotating end, 352 Free end, 360 Grinding plate, 40 Control module, 410 Grating plate, 420 Through-beam photoelectric sensor, 430 Control panel, 440 Charging end. Detailed Implementation
[0019] To better illustrate the present invention, the invention will now be described in further detail with reference to the accompanying drawings.
[0020] It should be understood that the described embodiments are merely some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of the embodiments of this application.
[0021] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.
[0022] In the following description, when referring to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. In the description of this application, it should be understood that the terms "first," "second," "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0023] Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.
[0024] Traditional nail clippers require close coordination between the thumb and other fingers to press the clipper cap, using leverage to complete the cutting action. Elderly people often struggle with precise control of force and angle due to stiff hand joints, easily cutting their skin. People with disabilities, such as those missing thumbs, are unable to perform the pressing action and rely entirely on assistance. Current electric nail clippers use a motor to rotate the blades to grind and trim nails, which is inefficient when dealing with long nails.
[0025] Combination Figures 1 to 8As shown, to solve the above problems, this invention provides an electric nail trimming and filing tool, which aims to achieve automated trimming through motor 310, reducing the difficulty of operation, suitable for the elderly and people with limited hand mobility, and can also efficiently trim long nails, improving the user experience. The electric nail trimming and filing tool of this invention includes: a mounting base 10; nail clippers 20, which are mounted on the mounting base 10; the nail clippers 20 have jaws 210 and clipper caps 220; a drive mechanism 30, which is mounted on the mounting base 10; the drive mechanism 30 includes a motor 310, a gear set 320, a first output shaft 330 and a second output shaft 340, the first output shaft 330 being connected to a cam 350, and the second output shaft 340 being connected to a filing plate 360; when the motor 310 reverses, the motor 310 drives the gear set 320 to achieve automated trimming through the gear set 310. The gear set 320 is driven by the first output shaft 330 but not by the second output shaft 340, so that the cam 350 rotates around the first output shaft 330. When the cam 350 rotates, it presses the clamp cover 220. When the motor 310 rotates forward, the motor 310 is driven by the second output shaft 340 through the gear set 320 but not by the first output shaft 330, so that the grinding plate 360 rotates around the second output shaft 340. The control module 40 is electrically connected to the motor 310.
[0026] Specifically, the mounting base 10 can be combined with the nail clipper 20 to become an electric nail trimming and filing tool. The nail clipper 20 can be a standard commercially available model. The combined size of the mounting base 10 and the nail clipper 20 is designed to be easily held in one hand. The structure and working principle of the nail clipper 20 are the same as those of existing standard nail clippers, including a clipper cap 220, a clipper body 230, and a jaw 210. The jaw 210 is opened and closed by pressing the clipper cap 220. Further details about the nail clipper 20 are not provided here.
[0027] After the mounting base 10 and the nail clipper 20 are assembled, the user controls the motor 310 through the control module 40, controlling the motor 310 to rotate forward, reverse, or stop. When the motor 310 rotates in reverse, the motor 310 is connected to the first output shaft 330 through the gear set 320, so that the cam 350 rotates around the first output shaft 330. When the cam 350 rotates, it will periodically press the clipper cover 220, causing the jaws 210 of the nail clipper 20 to close and open, thereby performing a cutting action on the nail similar to that of traditional nail clippers. For longer nails, it can quickly cut them off, significantly improving trimming efficiency compared to existing technologies. At this time, the motor 310 is not connected to the second output shaft 340, that is, the grinding plate 360 connected to the second output shaft 340 will not rotate.
[0028] When the motor 310 rotates forward, the motor 310 is connected to the second output shaft 340 through the gear set 320, so that the grinding plate 360 rotates around the second output shaft 340. The user places the cut nail edge on the surface of the grinding plate 360 for grinding and trimming. At this time, the motor 310 is not connected to the first output shaft 330, that is, the cam 350 will not rotate.
[0029] The electric nail trimming and filing tool of this invention integrates cutting and filing into one unit. This not only solves the problem of low efficiency in existing electric nail trimming and filing tools that only grind, but also eliminates the need for additional tool replacements, greatly improving ease of use. Furthermore, users can switch functions simply by controlling the direction of the motor 310 via the control module 40, making operation simple and intuitive. It is especially suitable for independent use by the elderly and disabled individuals with poor hand dexterity, effectively improving their self-care abilities.
[0030] Combination Figures 5 to 8As shown, regarding the structure of the gear set 320, in this embodiment, the gear set 320 includes a driving gear 321, a transmission gear 322, a clutch master gear 323, a clutch slave gear 324, a first driven gear 325, and a second driven gear 326. The driving gear 321 is connected to the motor 310 shaft of the motor 310, and the driving gear 321 is driven by the clutch master gear 323 through the transmission gear 322. The clutch master gear 323 is connected to the first rotating shaft 3231, and the clutch slave gear 324 is connected to the second rotating shaft 3232. The first rotating shaft 3231 is connected to the second rotating shaft 3232 through a reversing block 3233, and the clutch master gear 323 is also driven by the clutch slave gear 324. The first driven gear 325 is connected to the first output shaft 330, and the second driven gear 326 is connected to the second output shaft 340. When the motor 310 reverses, the clutch master gear 323 drives the clutch slave gear 324 to move counterclockwise around the first rotating shaft 3231 until the clutch slave gear 324 is connected to the first driven gear 325 and is not connected to the second driven gear 326. When the motor 310 rotates forward, the clutch master gear 323 drives the clutch slave gear 324 to move clockwise around the first rotating shaft 3231 until the clutch slave gear 324 is connected to the second driven gear 326 and is not connected to the first driven gear 325.
[0031] Specifically, when the motor 310 reverses, the drive gear 321 rotates accordingly and drives the transmission gear 322 to rotate. When the transmission gear 322 rotates, it drives the clutch master gear 323 to rotate counterclockwise, which in turn causes the first rotating shaft 3231 to rotate. When the first rotating shaft 3231 rotates, it drives the reversing block 3233 and the second rotating shaft 3232 to move synchronously, so that the clutch slave gear 324 on the second rotating shaft 3232 moves counterclockwise around the first rotating shaft 3231 until the clutch slave gear 324 contacts the first driven gear 325. Since the clutch master gear 323 is also connected to the clutch slave gear 324, the clutch gear 324 drives the first driven gear 325 to rotate, thereby causing the first output shaft 330 and the cam 350 to rotate synchronously. When the motor 310 rotates forward, the drive gear 321 rotates in reverse and drives the transmission gear 322 to rotate. When the transmission gear 322 rotates, it drives the clutch gear 323 to rotate clockwise, which in turn causes the first rotating shaft 3231 to rotate. When the first rotating shaft 3231 rotates, it drives the reversing block 3233 and the second rotating shaft 3232 to move synchronously, so that the clutch gear 324 on the second rotating shaft 3232 moves clockwise around the first rotating shaft 3231. The clutch gear 324 disengages from the first driven gear 325 until the clutch gear 324 contacts the second driven gear 326. Since the clutch gear 323 is still connected to the clutch gear 324, the clutch gear 324 drives the second driven gear 326 to rotate, thereby causing the second output shaft 340 and the grinding plate 360 to rotate synchronously.
[0032] Furthermore, the transmission gears are multiple, and through the gear ratio between the small gear and the large gear, the high speed of the motor 310 is converted into low speed and high torque, enabling the cam 350 to press the clamp cover 220. This also facilitates the miniaturization of the motor 310 to fit the size of the electric nail trimming and filing tool of this application.
[0033] Furthermore, the gear set 320 also includes a gearbox, which contains the driving gear 321, transmission gear 322, clutch female gear 323, clutch male gear 324, first driven gear 325 and second driven gear. The gearbox protects the gears and prevents foreign objects from getting stuck in the gears and affecting their operation.
[0034] Regarding the positional layout of the various components of the electric nail trimming and filing tool of this application, in this embodiment, one side of the mounting base 10 is provided with a mounting side 110, and the other side is provided with a storage side 120; the mounting side 110 is provided with the cam 350 and the detachable nail clipper, and the storage side 120 is provided with the motor 310 and the filing plate 360.
[0035] The mounting side 110 of the mounting base 10 (as in the left side of the mounting base 10 in this embodiment) extends inward and outward to form a base 111 for accommodating the nail clippers. The nail clippers are fixedly connected to the base 111 by a limiting mechanism, so that the nail clippers can be stably mounted on the mounting side 110 and are easy to disassemble and replace later. The cam 350 is disposed on one side of the mounting groove, and its wheel surface corresponds to the clipper cap 220 of the nail clippers. When the cam 350 rotates, it can accurately press the clipper cap 220 to achieve the nail cutting action. The storage side 120 (as in the right side of the mounting base 10 in this embodiment) is provided with the motor 310 and the grinding plate 360. The motor 310 shaft is connected to the drive gear 321 in the gearbox. The grinding plate 360 is rotatably disposed on the storage side 120 through the second output shaft 340, so that the user can directly use the grinding plate 360 to grind and trim the nail edges after cutting the nails. This application features a compact and reasonable overall layout, making full use of the space of the mounting base 10, resulting in a small and portable overall size for the electric nail trimming and filing tool, and improving the stability when held by the user. Furthermore, the mounting side 110 is provided with a base 111 and a limiting mechanism, which abuts against the body 230 of the nail clipper 20 to fix the nail clipper 20 on the base 111.
[0036] Furthermore, one side of the base 111 is provided with a splash guard 1111, the splash guard 1111 is provided with a first threaded hole, and the lower side of the base 111 is provided with a second threaded hole; the limiting mechanism includes a limiting block 1112, a first limiting bolt 1113 and a second limiting bolt 1114, the limiting block 1112 is disposed on the base 111 and abuts against the upper side of the clamp body 230, the first limiting bolt 1113 is threadedly connected to the first threaded hole and the end of the first limiting bolt 1113 abuts against the clamp body 230, and the second limiting bolt 1114 is threadedly connected to the second threaded hole and the end of the second limiting bolt 1114 is inserted into the positioning hole of the clamp body 230.
[0037] This application utilizes the first limiting bolt 1113 to apply lateral pressure from the anti-splash plate 1111 towards the pliers body 230, combined with the limiting block 1112 providing longitudinal limitation on the upper side of the pliers body 230, and the precise insertion of the second limiting bolt 1114 into the positioning hole of the pliers body 230, forming a three-dimensional fixed structure to ensure that the nail clippers will not shift or shake during high-speed cutting. The anti-splash plate 1111 not only provides an installation base for the first limiting bolt 1113, but its upward-extending plate body can also effectively block nail clippings generated during cutting. Combined with the pliers body 230's own receiving compartment to collect the clippings, it prevents clippings from splashing and polluting the environment. When the nail clippers 20 are removed, the receiving compartment can be exposed, allowing nail clippings to be removed for cleaning. The limiting block 1112 is located on the rear side of the base 111, providing stable limitation when it contacts the rear end of the pliers body 230. Generally, the rear end of a regular nail clipper 20 is provided with a positioning hole for the chain to pass through. In this application, after the second limiting bolt 1114 is threadedly connected to the second threaded hole, the end of the second limiting bolt 1114 is inserted into the positioning hole of the clipper body 230, thereby positioning the nail clipper 20.
[0038] This application designs the nail clipper 20 as a detachable unit, allowing the user to replace the nail clipper 20 after the jaws 210 become dull. Furthermore, the base 111 is limited by the limiting block 1112, the first limiting bolt 1113, and the second limiting bolt 1114, making it compatible with ordinary nail clippers 20 and most nail clippers 20 on the market, thus reducing user costs.
[0039] Furthermore, the base 111 is provided with a slot 1115, which is located in front of the jaws 210. The slot 1115 is provided with a removable anti-cutting plate 1116. The anti-cutting plate 1116 is a thin sheet that is concave towards the jaws 210. The thin sheet has a nail groove for the nail to extend into the jaws 210. When the nail enters the jaws 210, the tip of the finger rests against the anti-cutting plate 1116 to ensure accurate and stable cutting position. At the same time, the front end of the anti-cutting plate 1116 is designed in an arc shape to match the natural curvature of the finger, improving comfort during use. The anti-cutting plate 1116 can effectively support the tip of the finger when cutting nails and can also act as a buffer to protect against accidental operation, preventing the jaws 210 from directly contacting the skin and causing scratches. When installing the anti-shear plate 1116, simply insert the anti-shear plate 1116 into the slot 1115. When disassembling, simply lift the front end of the anti-shear plate 1116 and gently pull it out. This makes it easy for users to replace, clean, and disinfect the anti-shear plate 1116, and maintain hygiene.
[0040] In this embodiment, the mounting base 10 is provided with a mounting slot 130 and a battery compartment 140. The mounting slot 130 is located between the mounting side 110 and the storage side 120, and the gear set 320 is mounted in the mounting slot 130. The battery compartment 140 is located below the mounting slot 130 and adjacent to the nail clipper 20, and a battery 150 is disposed in the battery compartment 140. After the gear set 320 is installed in the mounting slot 130, it is located in the middle position of the mounting base 10, that is, between the mounting side 110 and the storage side 120, effectively separating the motor 310, the cam 350 and the grinding plate 360, making reasonable use of space. In addition, the length direction of the battery compartment 140 is the same as the length direction of the gear set 320, thereby matching the size of the gear set 320. The mounting base 10 achieves tight integration of various functional modules through a three-dimensional spatial stacking layout, keeping the overall size of the mounting base 10 within the palm of your hand, achieving efficient use of space, and ensuring that the power supply requirements are met without increasing the overall size of the equipment.
[0041] Furthermore, the battery 150 is a lithium battery 150 with a temperature control plate.
[0042] In this embodiment, the storage side 120 is provided with a grating plate 410 and a through-beam photoelectric sensor 420. The grating plate 410 is connected to the first output shaft 330 and has a notch. The through-beam photoelectric sensor 420 is electrically connected to the control module 40 and is used to generate a detection signal and send it to the control module 40 when the notch is detected to pass through its detection area.
[0043] When the motor 310 drives the first output shaft 330 to rotate via the gear set 320, the grating plate 410 rotates synchronously with the first output shaft 330. During the rotation of the grating plate 410, its notch periodically passes through the detection area of the through-beam photoelectric sensor 420. When the notch does not pass through the detection area, the solid part of the grating plate 410 blocks the optical path of the through-beam photoelectric sensor 420, preventing it from receiving the optical signal; however, when the notch passes through the detection area of the through-beam photoelectric sensor 420, the optical path is opened, the through-beam photoelectric sensor 420 receives the optical signal and immediately generates a detection signal (e.g., a low voltage signal), which is then sent to the control module 40. The control module 40 processes the received detection signal and generates a stop signal to control the motor 310 to stop working. At this time, the grating plate 410 only rotates one revolution. Similarly, the cam 350, which shares a first output shaft 330 with the grating plate 410, also rotates one revolution. That is, the nail clipper 20 only performs one closing action to achieve single trimming.
[0044] Furthermore, the mounting base 10 is provided with a control panel 430 and a charging terminal 440 on its rear or front side, both of which are electrically connected to the control module 40. The control panel 430 may integrate operation buttons such as a power switch and a mode selection button. Users can control the overall start and stop of the electric nail trimming and filing tool by pressing the power switch, while the mode selection button can be used to switch between different working modes, such as continuous trimming mode, single trimming mode, and filing mode, to meet diverse usage needs. The charging terminal 440 can adopt a universal USB Type-C interface or a Micro USB interface, allowing users to conveniently charge the electric nail trimming and filing tool using common chargers or power banks, ensuring timely power replenishment when the battery is low and guaranteeing continuous and stable operation. When the electric nail trimmer and file is connected to the charger, the control module 40 can monitor the charging status of the battery 150 and display the current charging progress through indicator lights (such as LEDs) on the control panel 430 with different colors or flashing frequencies. For example, a red light flashes during charging and a green light stays on when fully charged, making it easy for users to intuitively understand the charging status.
[0045] In the continuous trimming mode, the motor 310 reverses and drives the first output shaft 330 to rotate continuously, while the cam 350 continuously presses the nail clipper 20 to achieve continuous trimming. In the single trimming mode, the motor 310 reverses and drives the first output shaft 330 to rotate. After receiving the detection signal from the through-beam photoelectric sensor 420, the motor 310 stops working, and the cam 350 presses the nail clipper 20 once to achieve single trimming. In the polishing mode, the motor 310 rotates forward and drives the second output shaft 340 to rotate continuously, while the polishing plate 360 rotates continuously to achieve polishing.
[0046] In addition, when installing and removing the nail clipper 20 to the mounting base 10, this application can set the cam 350 to rotate to a preset angle to facilitate the removal or insertion of the nail clipper 20.
[0047] In this embodiment, the cam 350 has a rotating end 351 and a free end 352. The rotating end 351 is connected to the first output shaft 330, and the free end 352 presses the pliers cap 220 under the rotation of the cam 350. The end of the free end 352 has an arc-shaped pressing surface, which can form surface contact with the pliers cap 220 during the pressing process, thereby dispersing the pressing stress and avoiding deformation or damage to the pliers cap 220 due to excessive local pressure. This ensures the stability and transmission accuracy of the cam 350 during rotation, and thus guarantees the accuracy and consistency of the pressing action on the nail clipper 20.
[0048] In this embodiment, the electric nail trimming and filing tool also includes a housing. The housing is combined with the mounting base 10 to conceal and house the motor 310, gear set 320, control module 40, and through-beam photoelectric sensor 420, preventing these components from being exposed and causing unsightly products and safety hazards. The housing has a through hole for the first output shaft 330 to pass through and connect to the cam 350, and also an opening for the filing plate 360 to be exposed.
[0049] Furthermore, the surface of the outer shell can be made of a skin-friendly material, such as silicone or rubber, which not only improves grip comfort but also effectively prevents slippage, preventing the electric nail trimmer and file tool from slipping due to sweaty hands or improper force during use. The outer shell can also be provided with ergonomic grip grooves to further conform to the contours of the hand and reduce hand fatigue after prolonged use.
[0050] It should be noted that, for ease of understanding of the technical solution of this application, the outer casing is omitted from the accompanying drawings.
[0051] This invention is not limited to the above-described embodiments. If any modifications or variations to this invention do not depart from the spirit and scope of this invention, and if such modifications and variations fall within the scope of the claims and equivalent technologies of this invention, then this invention also intends to include such modifications and variations.
Claims
1. An electric nail trimming and polishing tool, characterized by, It comprises: a mounting base; nail clippers arranged on the mounting base; the nail clippers are provided with a jaw and a cover; a driving mechanism arranged on the mounting base; the driving mechanism comprises a motor, a gear set, a first output shaft and a second output shaft, the first output shaft is connected with a cam, and the second output shaft is connected with a polishing plate; when the motor reverses, the motor is in driving connection with the first output shaft through the gear set and is not connected with the second output shaft, so that the cam rotates around the first output shaft, and the cam performs pressing operation on the cover when rotating; when the motor rotates forward, the motor is in driving connection with the second output shaft through the gear set and is not connected with the first output shaft, so that the polishing plate rotates around the second output shaft; a control module electrically connected with the motor.
2. The electric nail trimming and polishing tool according to claim 1, wherein: the gear set comprises a driving gear, a transmission gear, a clutch female gear, a clutch male gear, a first driven gear and a second driven gear, wherein the driving gear is connected with a motor shaft of the motor, and the driving gear is in driving connection with the clutch female gear through the transmission gear; the clutch female gear is connected with a first rotating shaft, and the clutch male gear is connected with a second rotating shaft; the first rotating shaft is connected with the second rotating shaft through a reversing block, and the clutch female gear is also in driving connection with the clutch male gear; the first driven gear is connected with the first output shaft, and the second driven gear is connected with the second output shaft; when the motor reverses, the clutch female gear drives the clutch male gear to move counterclockwise around the first rotating shaft until the clutch male gear is in driving connection with the first driven gear and is not connected with the second driven gear; when the motor rotates forward, the clutch female gear drives the clutch male gear to move clockwise around the first rotating shaft until the clutch male gear is in driving connection with the second driven gear and is not connected with the first driven gear.
3. The electric nail trimming and polishing tool according to claim 1, wherein: one side of the mounting base is provided with a mounting side, and the other side is provided with a receiving side; the mounting side is provided with the cam and the detachable nail clippers, and the receiving side is provided with the motor and the polishing plate.
4. The electric nail trimming and polishing tool according to claim 3, wherein: the mounting side is provided with a base and a limiting mechanism, and the limiting mechanism abuts against a body of the nail clippers to fix the nail clippers on the base.
5. The electric nail trimming and polishing tool according to claim 4, wherein: one side of the base is provided with a splash-proof plate provided with a first threaded hole, and the lower side of the base is provided with a second threaded hole. The limiting mechanism comprises a limiting block, a first limiting bolt and a second limiting bolt, the limiting block is arranged on the base and abuts against the upper side of the jaw body, the first limiting bolt is threadedly connected with the first threaded hole and the end of the first limiting bolt abuts against the jaw body, and the second limiting bolt is threadedly connected with the second threaded hole and the end of the second limiting bolt is inserted into the positioning hole of the jaw body.
6. The electric nail trimming and polishing tool according to claim 4, characterized in that: The base is provided with a slot located in front of the jaw, and the slot is provided with a detachable anti-cutting plate.
7. The electric nail trimming and polishing tool according to claim 3, characterized in that: The mounting seat is provided with a mounting slot and a battery compartment, the mounting slot is located between the mounting side and the receiving side, and the mounting slot is provided with the gear set; The battery compartment is located below the mounting slot and is arranged adjacent to the nail clippers, and the battery compartment is provided with a battery.
8. The electric nail trimming and polishing tool according to claim 3, characterized in that: The receiving side is provided with a grating plate and a pair of light-sensing photoelectric sensors, the grating plate is connected with the first output shaft, and the grating plate is provided with a notch; The pair of light-sensing photoelectric sensors are electrically connected with the control module, and are used for generating a detection signal and sending the detection signal to the control module when detecting that the notch passes through the detection area.
9. The electric nail trimming and polishing tool according to claim 8, characterized in that: The rear side or the front side of the mounting seat is provided with a control panel and a charging end, and the control panel and the charging end are electrically connected with the control module.
10. The electric nail trimming and polishing tool according to claim 1, characterized in that: The cam is provided with a rotating end and a free end, the rotating end is connected with the first output shaft, and the free end is pressed against the cover under the rotation of the cam.
Citation Information
Patent Citations
Electric nail clippers
CN219374029U