Floating shock absorbing head structure for a reciprocating shaver

Abstract

The utility model discloses a floating shock attenuation head structure for reciprocating shaver, including the net head, its inside symmetry is provided with net head guide structure, the knife seat is installed in the net head, the intermediate knife subassembly is installed in the knife seat, the floating spring is connected between the net head guide structure and the intermediate knife subassembly. The utility model belongs to the shaver technical field, and specifically refers to a floating shock attenuation head structure for reciprocating shaver.

Description

Technical Field

[0001] This utility model belongs to the field of shaver technology, specifically referring to a floating shock-absorbing head structure for reciprocating shavers. Background Technology

[0002] Reciprocating shavers are known for their powerful motor and efficient cutting performance. Their core working principle involves the interaction between a high-speed reciprocating intermediate blade and the inner edge of a stationary foil head (outer blade) to cut hairs that penetrate the mesh. However, traditional reciprocating shaver head structures suffer from several long-standing technical limitations that directly impact the user's shaving experience and product performance.

[0003] First, insufficient closeness and comfort are significant drawbacks of traditional designs. To achieve a close fit, the blade head needs a certain degree of floating cushioning to adapt to facial contours. Current technologies often use simple springs or rubber components to provide overall floating, but this floating lacks precise lateral constraint, causing unintended horizontal swaying and wobbling of the intermediate blade assembly during reciprocating motion. This swaying not only transmits motor vibrations directly to the skin, causing uncomfortable vibrations, but also disrupts the stability of the optimal cutting gap between the intermediate blade and the mesh head, leading to decreased cutting efficiency and even stubble.

[0004] Secondly, excessive vibration and noise are another key issue affecting user experience. The root cause lies in the inertial force of the intermediate cutter assembly during high-speed reciprocating motion, which induces multidimensional vibrations within the mounting gap. Existing cutter head structures typically only provide single axial positioning, lacking coordinated constraints on the intermediate cutter assembly in the left-right (lateral) and front-back directions. This insufficient constraint in multidimensional degrees of freedom causes lateral movement and collisions of the assembly during motion, generating unpleasant noise, accelerating cutter head wear, and shortening its service life.

[0005] Furthermore, traditional cutter head structures have poor versatility and scalability. Floating damping mechanisms are often strongly coupled with specific intermediate cutter designs, meaning that for each new intermediate cutter model (such as spur tooth type, YW type, etc.), a matching floating system needs to be redesigned, greatly increasing R&D costs and mold complexity, and limiting the rapid iteration of product series and market expansion. Utility Model Content

[0006] To address the aforementioned problems of insufficient contact and comfort, excessive vibration and noise, and poor versatility and expandability of traditional reciprocating shaver heads, this invention provides a floating shock-absorbing shaver head structure for reciprocating shavers.

[0007] To achieve the above functions, the technical solution adopted by this utility model is as follows: a floating shock-absorbing head structure for a reciprocating shaver, including a mesh head, on the inner side of which a mesh head guide structure is symmetrically arranged; The cutter holder is installed inside the mesh head; An intermediate blade assembly is installed within the blade holder; A floating spring is connected between the mesh head guide structure and the intermediate knife assembly.

[0008] Furthermore, the intermediate blade assembly includes an intermediate blade and elastic arms symmetrically connected to both sides of the intermediate blade; The bottom of the elastic arm has a positioning hole, and an abutment end is fixedly connected to its outer side.

[0009] Furthermore, the mesh head guide structure includes an L-shaped seat, which is symmetrically fixed to the inner wall of the mesh head; A limiting slot is formed on the inner wall of the vertical end of the L-shaped seat, and both ends of the elastic arm pass through the limiting slot; The lower positioning rod is fixed to the top of the horizontal end of the L-shaped seat.

[0010] Furthermore, the bottom end of the floating spring is movably sleeved on the lower positioning rod, and its top end is inserted into the positioning hole.

[0011] Furthermore, an integrated guide inner wall is integrally connected to the inner wall of the mesh head; The top of the guide inner wall is provided with an inner wall buckle; The abutting end of the elastic arm lightly abuts against the inner wall of the guide, and the top corner of the abutting end is snapped into the inner wall.

[0012] Furthermore, the tool holder includes a bottom mounting groove and comb-tooth structures located on both sides of the top of the mounting groove; The intermediate blade assembly is snapped into the mounting slot.

[0013] Furthermore, the mounting groove is symmetrically provided with positioning ribs inside.

[0014] Furthermore, the bottom of the elastic arm abuts between the positioning ribs on both sides.

[0015] Furthermore, the inner wall of the mounting groove is symmetrically provided with fasteners; The latch limits the front and rear sides of the intermediate blade assembly.

[0016] Furthermore, the intermediate blade is located between the comb-tooth structures on both sides of the blade holder; The intermediate blade can be adapted to various tooth structures, and the comb structure has a hollow portion suitable for cooperating with the intermediate blade.

[0017] Compared with the prior art, the present invention achieves the following beneficial effects by adopting the above structure: 1. Achieving high-precision guided elastic floating design fundamentally resolves the conflict between close shaving and vibration. Through the coordinated operation of the mesh head guide structure and the floating spring, the movement freedom of the middle blade assembly is precisely constrained along an axis perpendicular to the skin. This allows the shaving head to achieve excellent close shaving cushioning while effectively suppressing any unintended horizontal wobbling, isolating motor vibration from the skin, and significantly improving shaving comfort and smoothness.

[0018] 2. A multi-dimensional collaborative limiting system was constructed, significantly reducing vibration and noise and extending service life. Through the cooperation of positioning ribs, snap-fit, and mesh head guide structure, a three-dimensional limiting component is constructed inside the tool holder. This system ensures the stability and precise positioning of the intermediate tool assembly during high-speed reciprocating motion, fundamentally eliminating vibration, noise, and abnormal wear caused by assembly gaps in various directions, thus improving product durability and quietness.

[0019] 3. The modular and universal design significantly enhances the scalability and cost-effectiveness of the product platform. By decoupling the high-precision floating damping platform from the specific tooth profile design of the intermediate cutter, the same core floating structure can flexibly and reliably adapt to various functional intermediate cutters, such as straight-tooth, YW-type, and YX-type cutters. This design greatly expands the product's application range, supports rapid product serialization and iteration, and effectively reduces the R&D and mold manufacturing costs of individual products. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of a reciprocating razor proposed in this utility model; Figure 2 This is a cross-sectional view of a partial structural diagram of a reciprocating shaver proposed in this utility model. Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle; Figure 4 This is a schematic diagram of the overall structure of the mesh head and mesh head guide structure in the floating shock-absorbing cutter head structure proposed in this utility model. Figure 5 for Figure 4 Enlarged view of a section at point B in the middle; Figure 6 This is a schematic diagram of the overall structure of the tool holder in the floating shock-absorbing tool head structure proposed in this utility model; Figure 7 This is a schematic diagram of the overall structure of the floating spring and intermediate blade assembly in the floating shock-absorbing cutter head structure proposed in this utility model. Figure 8This is a cross-sectional view of the assembly diagram of the tool holder and intermediate tool assembly in the floating shock-absorbing tool head structure proposed in this utility model.

[0021] Among them, 1. Reciprocating shaver, 2. Floating shock-absorbing head structure, 21. Shaver head, 211. Shaver head guide structure, 2111. L-shaped seat, 2112. Limiting slot, 2113. Lower positioning rod, 212. Guide inner wall, 213. Inner wall upper buckle, 22. Shaver holder, 221. Mounting groove, 2211. Positioning rib, 2212. Buckle, 222. Comb structure, 23. Middle blade assembly, 231. Middle blade, 232. Elastic arm, 2321. Positioning hole, 2322. Abutment end, 24. Floating spring. Detailed Implementation

[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-8As shown, this utility model provides a floating shock-absorbing head structure for a reciprocating shaver, including a mesh head 21 with a mesh head guide structure 211 symmetrically arranged on its inner side; a blade holder 22 installed inside the mesh head 21; an intermediate blade assembly 23 installed inside the blade holder 22; and a floating spring 24 connecting the mesh head guide structure 211 and the intermediate blade assembly 23. The intermediate blade assembly 23 includes an intermediate blade 231 and elastic arms 232 symmetrically connected to both sides of the intermediate blade 231. The bottom of the elastic arm 232 has a positioning hole 2321, and an abutment end 2322 is fixedly connected to its outer side. The elastic arm 232 and the floating spring 24 together constitute the core elastic support and guiding element of the floating system. The mesh head 21, the blade holder 22, and the intermediate blade assembly 23 together constitute an elastic floating system. Its core principle is to constrain the lateral movement freedom of the intermediate blade assembly 23 through the mesh head guide structure 211, so that it can achieve stable elastic reciprocating motion in the direction perpendicular to the skin, while suppressing unexpected swaying and vibration transmission in the horizontal direction.

[0026] like Figure 1-5 As shown, the mesh head guide structure 211 includes an L-shaped seat 2111, which is symmetrically fixed to the inner wall of the mesh head 21; a limiting slot 2112, which is opened on the inner wall of the vertical end of the L-shaped seat 2111, with both ends of the elastic arm 232 passing through the limiting slot 2112; and a lower positioning rod 2113, which is fixed to the top of the horizontal end of the L-shaped seat 2111. The principle of the mesh head guide structure 211 is to construct a precise mechanical guide rail, and to limit the installation of the end of the elastic arm 232 through the limiting slot 2112, effectively limiting its swing amplitude; while the lower positioning rod 2113 provides precise bottom positioning and guidance for the floating spring 24, ensuring that the elastic force is applied axially. An integrated guide inner wall 212 is connected to the inner wall of the mesh head 21; an inner wall buckle 213 is provided at the top of the guide inner wall 212; the abutting end 2322 of the elastic arm 232 lightly abuts against the guide inner wall 212, and the top corner of the abutting end 2322 is snapped into the inner wall buckle 213. By utilizing the snapping cooperation formed by the inner wall buckle 213 and the top corner of the abutting end 2322, the elastic arm 232 is mechanically limited in the axial direction to prevent it from separating from the mesh head 21 in the non-working state (such as when changing the cutter head or when it is subjected to an upward impact), while not affecting its normal elastic floating in the working state.

[0027] like Figure 1-3As shown in Figure 7, the bottom end of the floating spring 24 is movably sleeved on the lower positioning rod 2113, and its top end is inserted into the positioning hole 2321. During the assembly process, the bottom end of the floating spring 24 must first be sleeved on the lower positioning rod 2113, and then the positioning hole 2321 of the elastic arm 232 is aligned with the top end of the spring. Then, axial pressure is applied to make the elastic arm 232 slide in along the mesh head guide structure 211 and undergo slight elastic deformation until its abutting end 2322 is fastened with the buckle 213 on the inner wall, thus completing the installation. The floating spring 24 can provide the main and controllable elastic support force. Its two ends are respectively positioned on the mesh head 21 and the intermediate knife assembly 23, changing the rigid connection between the mesh head 21 and the knife holder 22 to an elastic connection, thereby enabling the knife head to smoothly buffer when subjected to pressure and accurately reset after the pressure is released.

[0028] like Figure 1-3 As shown in Figures 6 and 8, the blade holder 22 includes a bottom mounting groove 221 and comb-tooth structures 222 located on both sides of the top of the mounting groove 221; the intermediate blade assembly 23 is snapped into the mounting groove 221; the blade holder 22 provides a stable mounting base and precise positioning reference for the intermediate blade assembly 23 through the mounting groove 221, while the comb-tooth structures 222 on its top cooperate with the intermediate blade 231 to form a cutting pair. This structural design can effectively isolate the skin from direct contact with the side of the intermediate blade 231, significantly improving shaving comfort and safety; in addition, the comb teeth also guide and comb longer beard hairs, helping to improve cutting efficiency; during installation, the intermediate blade assembly 23 is aligned with the mounting groove 221 and axial pressure is applied to achieve a snap-fit ​​fixation; The intermediate blade 231 is located between the comb-tooth structures 222 on both sides of the blade holder 22, and can be adapted to various tooth shapes such as straight tooth type, YW type or YX type. The comb-tooth structure 222 has a hollow part suitable for cooperating with the intermediate blade 231. By adopting the modular and universal design of the intermediate blade 231, the floating shock absorption mechanism is decoupled from the specific tooth shape design of the intermediate blade 231, so that the same set of high-precision floating shock absorption structure platform can be adapted to intermediate blades 231 with different functions and shapes, which greatly improves the versatility and application range of the blade head structure.

[0029] like Figure 2 , 3 As shown in Figure 8, the mounting groove 221 is symmetrically provided with positioning ribs 2211 inside; the bottom of the elastic arm 232 abuts between the positioning ribs 2211 on both sides. The positioning ribs 2211 can clamp and position the elastic arm 232 laterally (in the left and right directions) from the bottom. Together with the limiting function of the mesh head guide structure 211, they form a limiting system that works in tandem to eliminate the lateral movement of the intermediate knife assembly 23 in high-speed reciprocating motion, thereby reducing vibration and noise. The inner wall of the mounting groove 221 is symmetrically provided with latches 2212; the latches 2212 limit the front and rear sides of the intermediate blade assembly 23, thereby restricting the degree of freedom of the intermediate blade assembly 23 to move back and forth in the blade holder 22. By limiting the position of the intermediate blade assembly 23 in three-dimensional space through multi-point limiting, the position of the intermediate blade assembly 23 is accurately fixed, avoiding additional vibration and noise caused by gaps in various directions.

[0030] In practical use, 1. Assembly steps of the cutter head assembly First, assemble the cutter holder 22 and the intermediate cutter assembly 23: Align the intermediate cutter assembly 23, with the mesh head 21 already attached, with the mounting groove 221 at the bottom of the cutter holder 22, and continue to apply axial pressure to make the intermediate cutter assembly 23 snap into the mounting groove 221. The positioning ribs 2211 in the mounting groove 221 will automatically clamp the bottom of the elastic arm 232 to achieve lateral positioning, while the inner wall fasteners 2212 limit the front and rear movement of the intermediate cutter assembly 23. Then, pre-install the floating spring 24 and the mesh head 21: Insert the bottom end of the floating spring 24 one by one onto the lower positioning rod 2113 to ensure the spring... Align the axis with the lower positioning rod 2113; then pick up the tool holder 22 with the intermediate blade assembly 23 installed, align the positioning hole 2321 at the bottom of the elastic arm 232 with the top of the floating spring 24, and slowly apply axial pressure, allowing both ends of the elastic arm 232 to slide into the limiting slot 2112 of the L-shaped seat 2111. During this process, the elastic arm 232 will undergo slight elastic deformation until the top corner of the outer abutting end 2322 of the elastic arm 232 engages with the buckle 213 on the inner wall of the guide inner wall 212. At this point, the tool holder 22 with the intermediate blade assembly 23 is assembled inside the mesh head 21. The entire tool head structure is now assembled. 2. Installation, Use, and Shaving Operation The assembled shaver head is installed onto the main unit of the reciprocating shaver 1. After the main unit is turned on, the intermediate blade 231 will reciprocate at high speed under the drive mechanism. At the same time, the elastic floating system of the shaver head starts to work: when the foil head 21 conforms to different contours of the face, the floating spring 24 will automatically extend and retract according to the pressure, so that the shaver head is smoothly buffered along the direction perpendicular to the skin. The limiting slot 2112 of the foil head guide structure 211 will limit the lateral sway of the intermediate blade assembly 23, ensuring that the intermediate blade 231 always precisely matches the comb structure 222 of the blade holder 22 to form a cutting pair. During shaving, the comb structure 222 will comb the longer beard and isolate the skin from the side contact of the intermediate blade 231, improving shaving safety and efficiency. At the same time, the multi-dimensional limiting system can suppress vibration and noise, ensuring user comfort.

[0031] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A floating shock-absorbing head structure for a reciprocating shaver, characterized in that: Includes a mesh head (21), with a mesh head guide structure (211) symmetrically arranged on its inner side; The blade holder (22) is installed inside the mesh head (21); An intermediate blade assembly (23) is installed within the blade holder (22); A floating spring (24) is connected between the head guide structure (211) and the intermediate knife assembly (23).

2. The floating shock-absorbing head structure for a reciprocating shaver according to claim 1, characterized in that: The intermediate blade assembly (23) includes an intermediate blade (231) and elastic arms (232) symmetrically connected to both sides of the intermediate blade (231). The bottom of the elastic arm (232) is provided with a positioning hole (2321), and an abutment end (2322) is fixedly connected to its outer side.

3. The floating shock-absorbing head structure for a reciprocating shaver according to claim 2, characterized in that: The mesh head guide structure (211) includes an L-shaped seat (2111), which is symmetrically fixed to the inner wall of the mesh head (21); A limiting slot (2112) is provided on the inner wall of the vertical end of the L-shaped seat (2111), and both ends of the elastic arm (232) pass through the limiting slot (2112). The lower positioning rod (2113) is fixed to the top of the horizontal end of the L-shaped seat (2111).

4. The floating shock-absorbing head structure for a reciprocating shaver according to claim 3, characterized in that: The bottom end of the floating spring (24) is movably sleeved on the lower positioning rod (2113), and its top end is inserted into the positioning hole (2321).

5. A floating shock-absorbing head structure for a reciprocating shaver according to claim 2, characterized in that: The inner wall of the mesh head (21) is integrally connected with a guide inner wall (212). The top of the guide inner wall (212) is provided with an inner wall buckle (213). The abutting end (2322) of the elastic arm (232) lightly abuts against the inner guide wall (212), and the top corner of the abutting end (2322) is snapped into the buckle (213) on the inner wall.

6. The floating shock-absorbing head structure for a reciprocating shaver according to claim 2, characterized in that: The blade holder (22) includes a bottom mounting groove (221) and comb-tooth structures (222) located on both sides of the top of the mounting groove (221); The intermediate blade assembly (23) is snapped into the mounting slot (221).

7. A floating shock-absorbing head structure for a reciprocating shaver according to claim 6, characterized in that: The mounting groove (221) is symmetrically provided with positioning ribs (2211).

8. A floating shock-absorbing head structure for a reciprocating shaver according to claim 7, characterized in that: The bottom of the elastic arm (232) abuts between the positioning ribs (2211) on both sides.

9. A floating shock-absorbing head structure for a reciprocating shaver according to claim 6, characterized in that: The inner wall of the mounting groove (221) is symmetrically provided with fasteners (2212); The latch (2212) limits the front and rear sides of the intermediate knife assembly (23).

10. A floating shock-absorbing head structure for a reciprocating shaver according to claim 6, characterized in that: The intermediate blade (231) is located between the comb-tooth structures (222) on both sides of the blade holder (22); The intermediate blade (231) can be adapted to various tooth structures, and the comb structure (222) has a hollowed-out portion suitable for cooperating with the intermediate blade (231).

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