A cutter head structure and an electric nail clipper

Abstract

The utility model relates to a kind of cutter head structure and electric nail clippers, cutter head structure includes handle and the processing head rotatably arranged in handle, handle is equipped with cutter groove, cutter groove extends from the axial working area of processing head to its lateral working area;When processing head rotates, its exposure in the axial working area of cutter groove is handled nail from first direction, its exposure in the lateral working area of cutter groove is handled nail from second direction, the utility model can solve the technical problems that the trimming demand of corner ingrown nail cannot be met in prior art, and the width of body is large and toe nail cannot be trimmed.

Description

Technical Field

[0001] This utility model belongs to the field of personal care electrical appliance technology, specifically relating to a blade head structure and an electric nail clipper. Background Technology

[0002] Electric nail clippers, as one of the innovations in personal care appliances in recent years, have won consumer favor with their unique integrated cutting and filing function and shavings collection features. Currently, the cutting heads of electric nail clippers on the market are typically designed as rotary or sharpening blades, with the cutting and filing direction perpendicular to the nail surface. While this design effectively reduces lateral pushing force and prevents nails from being pushed sideways when trimming little toes or children's fingernails, the following problems have been exposed in actual use: 1. The challenge of trimming ingrown toenails: Traditional electric nail clippers are not well-suited for trimming ingrown toenails at the edges (the sides of the nail near the nail groove), especially for nail types like toenails which have more complex shapes and significant size differences. Their trimming effect and flexibility are limited.

[0003] 2. Excessively wide body design: Due to the limitations of the blade assembly, the electric nail clipper has an excessively wide axial width. This not only affects the user's convenience in storage, but also makes it difficult to operate flexibly when trimming toenails because the distance between the toes is small, thus limiting its range of use.

[0004] Therefore, the existing technology needs further improvement. Utility Model Content

[0005] In response to the various shortcomings of existing technologies, a new blade structure and electric nail clipper are proposed to solve the technical problems that existing technologies cannot meet the trimming needs of ingrown toenails and that the wide body of the clipper makes it impossible to trim toenails.

[0006] To achieve the above objectives, this utility model provides the following technical solution: In a first aspect, the present invention provides a cutting head structure, including a cutting sleeve and a processing head rotatably disposed within the cutting sleeve, wherein a cutting groove is provided on the cutting sleeve, and the cutting groove extends from the axial working area of ​​the processing head to its lateral working area. When the processing head rotates, its axial working area exposed in the blade groove processes the nail from a first direction, and its lateral working area exposed in the blade groove processes the nail from a second direction.

[0007] The technical solution is further configured such that the blade sleeve has a protrusion that protrudes outward along its radial direction, the processing head is disposed inside the protrusion, and the blade groove is disposed on the surface of the protrusion.

[0008] The technical solution is further configured such that the protrusion is located in the middle of the blade sleeve, and the two ends of the blade sleeve contract inward along its radial direction to form a contraction portion, and the diameter of the contraction portion is smaller than the diameter of the processing head.

[0009] The technical solution is further configured such that the processing head is spherical or cylindrical.

[0010] The technical solution is further configured such that the junction of the contraction portion and the protrusion portion is recessed inward along the radial direction of the blade sleeve to form a relief opening, and the relief opening is connected to the end of the blade groove.

[0011] The technical solution is further configured such that a positioning platform protruding from its surface is provided at the blade groove, and the positioning platform is used for lateral insertion between the edge of the nail and the nail groove.

[0012] The technical solution is further configured such that the processing head is rotatably mounted inside the blade sleeve via a rotating support and is driven by a transmission component, and the processing head, the rotating support, and the transmission component are configured as separate structures.

[0013] The technical solution is further configured such that the end of the blade sleeve is provided with a receiving cavity, and the rotating support and the transmission component are both disposed in the receiving cavity. Secondly, this utility model provides an electric nail clipper, including a body, the head of which is provided with the aforementioned blade structure.

[0014] The technical solution is further configured such that the blade sheath is provided with a snap-fit ​​structure for detachably connecting to the machine body.

[0015] The beneficial effects of this utility model are: 1. Utilizing the axial and lateral working areas of the processing head, nails can be processed from different directions. A single processing head can complete trimming operations that traditional electric nail clippers cannot achieve or require multiple tools to complete, easily meeting the diverse trimming needs of different parts of the body, different people, and different nail shapes.

[0016] 2. By incorporating a tapered section and a protruding section, the overall width of the electric nail clipper is no longer limited by the width of the nail, resulting in a compact overall structure that enhances the product's portability and ease of storage. The narrower overall design makes it particularly convenient for trimming toes, as it can easily reach into narrow spaces between the toes. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the cutter head structure in an embodiment of this utility model; Figure 2 This is a schematic diagram of the cutter head structure from another perspective in an embodiment of this utility model; Figure 3This is a schematic diagram of the cutter head structure, transmission component, and rotating support component in an embodiment of this utility model; Figure 4 This is an exploded view of the cutter head structure, transmission component and rotating support component in the embodiment of this utility model; Figure 5 This is a schematic diagram of the blade sheath in an embodiment of this utility model; Figure 6 This is a schematic diagram of the blade sheath from another perspective in an embodiment of this utility model; Figure 7 This is a schematic diagram of another embodiment of the cutter head structure in this utility model; Figure 8 This is an exploded view of another embodiment of the cutter head structure in this utility model. Figure 9 This is a schematic diagram of the electric nail clipper in an embodiment of this utility model.

[0018] In the attached diagram: 100, tool holder; 101, protrusion; 102, retractable part; 103, bayonet; 200, tool head; 300, positioning table; 400, clearance opening; 500, transmission component; 600, tool groove; 700, rotating support component; 800, second bearing; 900, machine body; 110, grinding head; 120, third bearing. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application. Furthermore, directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings; therefore, the directional terms used are for illustrative purposes and not for limiting the invention.

[0020] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0021] Example 1: According to an embodiment of this utility model, a cutter head structure is provided; please refer to [link / reference]. Figures 1 to 6 It includes a tool holder 100 and a cutting head 200 rotatably disposed within the tool holder 100. The cutting head 200 serves as a processing head. The tool holder 100 has a cutting groove 600 extending from the axial working area of ​​the cutting head 200 to its lateral working area. The axial surface of the cutting head 200 is its axial working area, and the lateral surface of the cutting head 200 is its lateral working area.

[0022] Existing electric nail clipper designs are too traditional in their head and sheath structures, failing to fully consider the physiological characteristics of human nails and diverse trimming needs, especially in handling ingrown toenails and adapting to nails of different sizes and shapes. This application designs the blade groove 600 to extend to the side of the blade head 200, exposing both the axial and lateral working areas of the blade head 200 within the groove 600. When the blade head 200 rotates, its axial working area exposed within the groove 600 trims the nail from a first direction, while its lateral working area trims the nail from a second direction. The first direction trimming includes trimming the middle of the nail, and the second direction trimming includes trimming ingrown toenails at the corners. Therefore, a single blade head can complete trimming operations that traditional electric nail clippers cannot achieve or that require multiple tools.

[0023] In one embodiment of the cutter head structure, please refer to... Figures 1 to 6 The blade sheath 100 has a protrusion 101 that protrudes outward along its radial direction, the blade head 200 is disposed inside the protrusion 101, and the blade groove 600 is disposed on the surface of the protrusion 101.

[0024] By adopting the above technical solution, the protrusion 101 provides the necessary physical space for the installation and movement of the cutter head 200. Since the protrusion 101 is partially protruding, the diameter of the cutter sleeve body on both sides is necessarily relatively small, which allows the side of the cutter head 200 to be exposed from the end of the cutter groove 600, naturally forming the lateral exposure area (lateral working area) of the cutter head 200.

[0025] In one embodiment of the cutter head structure, please refer to... Figures 1 to 6 The protrusion 101 is located in the middle of the blade sleeve 100. The two ends of the blade sleeve 100 are radially constricted inward to form a contraction portion 102, and the diameter of the contraction portion 102 is smaller than the diameter of the blade head 200.

[0026] By adopting the above technical solution, the maximum width of the entire blade head structure is determined by the protrusion 101 in the middle of the constriction section 102. For the protrusion 101, both the axial working area and the lateral working area of ​​the blade head 200 can participate in trimming, so the width of the protrusion 101 is no longer limited by the width of the nail. This significantly reduces the width of the blade head structure and even the entire electric nail clipper, resulting in a compact overall structure and improved portability and storage convenience. The gaps between toes are narrow, making it difficult for wide traditional electric nail clippers to reach them. This application narrows the body, allowing easy access between toes for flexible trimming of each toe. The narrow body also makes operation on fingers, especially children's fingers, more dexterous and convenient. It is understood that a single blade head can complete trimming operations that traditional electric nail clippers cannot achieve or require multiple tools to complete, easily meeting the diverse trimming needs of different parts of the body (fingernails, toenails), different groups of people (adults, children), and different nail shapes (flat, arched).

[0027] Optionally, the blade head 200 has a plurality of blades on its surface, which extend axially from one side of the blade head 200 to the other side. In conjunction with the structural design of the blade groove 600, both the axial working area and the lateral working area of ​​the blade head 200 are exposed within the blade groove 600. Building upon the conventional electric nail clipper which utilizes the axial working area of ​​the head for nail trimming, the lateral working area of ​​the head in this application also participates in trimming.

[0028] Specifically, the blade head 200 is spherical. The spherical surface is a continuous, edgeless curved surface, which means that there is no clear boundary between the trimming areas exposed by the blade groove 600 (the axial working area of ​​the blade head 200 and its lateral working area). When trimming, the user can achieve a natural and smooth transition between the center of the nail and the corner of the nail.

[0029] Specifically, the blade 200 is cylindrical. The cylindrical surface is a regular, flat rolling surface, which, when rotating at high speed, can form a stable and efficient shearing or grinding action with the nail surface. It is more efficient and produces a smoother trimming surface when trimming large areas such as the middle and tip of the nail. The two circular end faces of the cylinder enable trimming of nail corners, clearly defining functional zones.

[0030] In one embodiment of the cutter head structure, please refer to... Figures 1 to 6 The junction of the contraction portion 102 and the protrusion portion 101 is recessed radially inward along the blade sleeve 100 to form a relief opening 400, and the relief opening 400 is connected to the end of the blade groove 600.

[0031] By adopting the above technical solution, the opening 400 provides physical space for the lateral cutting of fingers or toes, allowing the nail corners to extend into and contact the lateral working area of ​​the treatment head without obstruction, thus ensuring the actual usability of the lateral trimming function.

[0032] In one embodiment of the cutter head structure, please refer to... Figures 1 to 6 The blade groove 600 is provided with a positioning platform 300 protruding from its surface. The positioning platform 300 is used to be inserted laterally between the nail corner and the nail groove, slightly opening up the space and creating operating conditions for subsequent lateral trimming of the treatment head, which is especially suitable for trimming ingrown nails at the corners.

[0033] Optionally, a partial surface of the protrusion 101 is recessed, and a positioning platform 300 is formed between the top of the recessed area and the bottom of the groove 600. It is understood that the outer edge of the positioning platform 300 and the surface of the protrusion 101 are on the same circumferential surface, thus avoiding the impact of partial protrusion on aesthetics.

[0034] Example 2: According to an embodiment of this utility model, a cutter head structure is provided; please refer to [link / reference]. Figures 1 to 6 The cutting head 200 is rotatably mounted inside the cutting sleeve 100 via a rotating support 700 and is driven by a transmission component 500. The cutting head 200, the rotating support 700, and the transmission component 500 are configured as separate structures.

[0035] Understandably, since the blade head 200 is located inside the protrusion 101, and the diameter of the retractable part 102 is smaller than the diameter of the blade head 200, a one-piece structure would not allow for side mounting. Therefore, a split design is adopted, where the blade head 200, rotating support 700, and transmission component 500 are each installed separately inside the blade sleeve 100 before being connected. Furthermore, the blade head 200, as a consumable part that directly contacts the nail, may experience wear; the transmission component 500 may also require lubrication or replacement after prolonged use. The split structure simplifies repair and maintenance.

[0036] In one embodiment of the cutter head structure, please refer to... Figures 1 to 6 The end of the blade sleeve 100 is provided with a receiving cavity, and the rotating support 700 and the transmission component 500 are both disposed in the receiving cavity.

[0037] Optionally, the protrusion 101 has a mounting port on its side, through which the cutter head 200 is mounted into the protrusion 101. The inner cavities of the contraction portions 102 located on both sides of the protrusion 101 form the receiving cavities. The two receiving cavities are a first receiving cavity and a second receiving cavity. The first receiving cavity is used to install the transmission member 500, whose central axis is connected to the central hole key on the cutter head 200 to drive the cutter head 200 to rotate. At the same time, the transmission member 500 is rotatably connected to the first receiving cavity through a first bearing. The second receiving cavity is used to install the rotating support member 700, whose end is connected to the central hole key on the cutter head 200. At the same time, the rotating support member 700 is rotatably connected to the second receiving cavity through a second bearing 800.

[0038] Optionally, the transmission component 500 adopts a gear, and the rotating support component 700 adopts a support shaft. The gear is connected to the drive source through a gear set that meshes with it. At the same time, the first bearing and the first receiving cavity can adopt an integrated structure to further reduce the size and reduce the cost.

[0039] Example 3: According to an embodiment of this utility model, a cutter head structure is provided; please refer to [link / reference]. Figure 7 as well as Figure 8 Unlike Embodiments 1 and 2, the grinding head 110 serves as a processing head, capable of grinding and polishing nails. Its surface has a frosted finish or is made of abrasive material. It is understood that both the blade 200 and the grinding head 110 can process nails through their exposed axial and lateral processing areas within the blade groove 600.

[0040] Optionally, the rotating support 700 is keyed to the center hole on the grinding head 110. Simultaneously, the rotating support 700 is rotatably connected to the second receiving cavity via a second bearing 800, and rotatably connected to the first receiving cavity via a third bearing 120. Furthermore, the end of the rotating support 700 is keyed to a transmission component.

[0041] Optionally, the transmission component is a gear, the rotating support component 700 is a support shaft, and the gear is connected to the drive source through a gear set that meshes with it. At the same time, the third bearing 120 and the first receiving cavity can be an integral structure to further reduce the size and cost.

[0042] Example 4: According to an embodiment of this utility model, an electric nail clipper is provided. Please refer to [link / reference]. Figures 1 to 9 It includes a body 900, and the head of the body 900 is provided with the aforementioned cutter head structure.

[0043] Understandably, by utilizing the axial and lateral working areas of the processing head, nails can be processed from different directions. A single processing head can accomplish trimming operations that traditional electric nail clippers cannot achieve or require multiple tools to complete, easily meeting the diverse trimming and filing needs of different parts of the body, different people, and different nail shapes. By incorporating the contraction section 102 and the protrusion section 101, the overall width of the electric nail clipper is no longer limited by the width of the nail, resulting in a compact overall structure that improves the product's portability and storage convenience. The narrower overall design is particularly convenient for trimming toes, easily reaching into narrow gaps between the toes.

[0044] In one embodiment of the electric nail clipper, please refer to... Figures 1 to 9 The blade sheath 100 is provided with a snap-fit ​​structure for detachably connecting to the machine body 900.

[0045] Optionally, the blade sheath 100 is provided with a bayonet 103, which cooperates with a locking block on the machine body 900 to assemble the blade head structure onto the machine body 900.

[0046] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0047] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0048] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0049] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0050] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A cutting head structure, characterized in that, It includes a blade sleeve and a processing head rotatably disposed within the blade sleeve. The blade sleeve has a blade groove that extends from the axial working area of ​​the processing head to its lateral working area. When the processing head rotates, its axial working area exposed in the blade groove processes the nail from a first direction, and its lateral working area exposed in the blade groove processes the nail from a second direction.

2. The cutter head structure according to claim 1, characterized in that, The blade sleeve has a protrusion that protrudes outward along its radial direction, the processing head is disposed inside the protrusion, and the blade groove is disposed on the surface of the protrusion.

3. The cutter head structure according to claim 2, characterized in that, The protrusion is located in the middle of the blade sleeve, and the two ends of the blade sleeve taper inward along its radial direction to form a tapered portion, and the diameter of the tapered portion is smaller than the diameter of the processing head.

4. The cutter head structure according to claim 3, characterized in that, The processing head is configured to be spherical or cylindrical.

5. The cutter head structure according to claim 3, characterized in that, The junction of the contraction portion and the protrusion portion is recessed inward along the radial direction of the blade sleeve to form a relief opening, which communicates with the end of the blade groove.

6. The cutter head structure according to claim 1, characterized in that, A positioning platform protruding from its surface is provided at the blade groove, and the positioning platform is used for lateral insertion between the edge of the nail and the nail groove.

7. The cutter head structure according to claim 1, characterized in that, The processing head is rotatably mounted inside the blade sleeve via a rotating support and is driven by a transmission component. The processing head, the rotating support, and the transmission component are configured as separate structures.

8. The cutter head structure according to claim 7, characterized in that, The end of the blade sheath is provided with a receiving cavity, and the rotating support and the transmission component are both disposed in the receiving cavity.

9. An electric nail clipper, characterized in that, Includes a machine body, the head of which is provided with a cutter head structure as described in any one of claims 1-8.

10. The electric nail clipper according to claim 9, characterized in that, The blade sheath is provided with a snap-fit ​​structure for detachable connection to the machine body.

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