A twin razor head assembly
With its dual-layer shaving structure and floating, contour-fitting electric shaver head assembly, it solves the problem of traditional shavers being unable to adapt to the complex curves of the face, achieving efficient, comfortable, and clean shaving results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN LEITAI ELECTRIC APPLIANCE MFG CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional fixed and floating electric shavers struggle to adapt to the complex curves of the human face when multiple heads are working together, leading to problems such as incomplete shaving, skin pulling, and irritation.
It adopts a double-layer shaving structure design, with the inner and outer moving and fixed blade covers floating and fitting together through elastic elements. Combined with modular connection and optimized debris discharge path, it ensures that the inner and outer blade areas shave synchronously and remove shaving debris in a timely manner.
Significantly improves shaving efficiency and comfort, enhances conformity to uneven facial areas, reduces the risk of nicks and cuts, extends shaving life, and improves cleanliness.
Smart Images
Figure CN224544632U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to a double-net shaver head assembly. Background Technology
[0002] In existing electric shavers, the shaving head assembly typically consists of a moving blade and a fixed blade. The movement of the moving blade relative to the fixed blade cuts the beard. To improve shaving efficiency and comfort, the moving blade assembly needs to maintain good contact with the facial skin during shaving. However, due to the uneven structure of facial skin, such as the chin, Adam's apple, and cheekbones, traditional fixed shaving head assemblies often fail to fully conform to these complex surfaces during use, leading to problems such as incomplete shaving, skin pulling, and even skin irritation.
[0003] In existing technologies, some electric shavers employ floating structures to improve the fit between the shaver head and the skin. For example, elastic elements are used to give the foil or moving blade assembly a certain degree of vertical floating capability. However, these floating structures are usually only applicable to a single shaving area, with a limited floating range. Furthermore, in scenarios where multiple shavers work together, the coordination of movement between the blades is poor, making it difficult to meet the requirement of simultaneous floating and fitting of dual- or multi-foil shaver head assemblies in different shaving areas.
[0004] This utility model was developed precisely because of the aforementioned shortcomings. Utility Model Content
[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a dual-net shaver head assembly that improves shaving efficiency and comfort.
[0006] This utility model is achieved through the following technical solution:
[0007] This utility model provides a double-wire shaver head assembly, including an outer blade bracket for connecting a shaver drive device, an outer fixed blade cover on the outer blade bracket, a plurality of first shaving holes on the outer fixed blade cover, an outer moving blade connected to the outer blade bracket, and a plurality of first blades extending upward and abutting the outer fixed blade cover on the outer moving blades. The outer fixed blade cover is annular and has a vertically penetrating mounting ring in the center. An inner fixed blade cover, which can slide vertically within the mounting ring, is provided, and the inner fixed blade cover has a plurality of second shaving holes. The outer blade support is connected to an inner blade support that can slide up and down. The outer moving blade is a ring-shaped structure surrounding the inner blade support. The inner blade support is connected to an inner moving blade. The inner moving blade is provided with several second blades that extend upward and are used to abut against the inner fixed blade cover. An elastic element is provided between the inner blade support and the outer blade support to push the inner blade support upward so that the inner moving blade abuts against the inner fixed blade cover. The inner fixed blade cover is connected to an inner blade cover support. The inner blade cover support is provided with a limiting part that can abut against the lower end of the mounting ring to prevent the inner fixed blade cover from falling out upward.
[0008] As described above, in the dual-net shaver head assembly, the inner blade cover bracket is annular, the inner fixed blade cover sidewall is provided with a locking hole, and the outer cylindrical surface of the inner blade cover bracket is provided with a buckle that can be locked into the locking hole.
[0009] As described above, in the dual-net shaver head assembly, the limiting part is an annular protrusion on the outer cylindrical surface of the inner blade cover bracket. The annular protrusion has several limiting notches, and the mounting ring has a limiting insert that passes through the limiting notches to restrict the circumferential rotation of the inner blade cover bracket.
[0010] As described above, in the dual-net shaver head assembly, the outer blade support is provided with a mounting post, the elastic element is a spring and is sleeved on the mounting post, the inner blade support and the inner moving blade are both sleeved on the mounting post, and the top of the mounting post is connected to a limiting and fixing element that can prevent the inner moving blade and the inner blade support from coming off upward.
[0011] As described above, in the dual-net shaver head assembly, the inner blade cover bracket has a bracket protrusion ring that surrounds the inner blade bracket and protrudes toward the inner blade bracket.
[0012] As described above, in the dual-net shaver head assembly, the inner blade support and the support protrusion ring are respectively provided with an arc-shaped annular guide surface. The support protrusion ring has an arc-shaped surface on the side close to the annular guide surface, so that the support protrusion ring and the annular guide surface form an exhaust channel for shaving debris to fall downward.
[0013] As described above, in the dual-wire shaver head assembly, the inner moving blade is provided with several circumferentially arranged support plates, the second blade is disposed on the support plates, the support plates are provided with a first mounting hole on one side of the second blade, and the inner blade bracket is provided with a first mounting post corresponding to the first mounting hole for insertion into the first mounting hole.
[0014] As described above, in the dual-wire shaver head assembly, the inner blade support is provided on one side of the first mounting post for a support platform to abut against the second blade.
[0015] As described above, in the dual-wire shaver head assembly, the support platform has a support portion protruding toward the second blade.
[0016] As described above, in the dual-net shaver head assembly, the outer moving blade is provided with a plurality of second mounting holes arranged circumferentially, the outer blade support is provided with a second mounting post corresponding to the second mounting holes for insertion into the second mounting holes, the outer blade support is provided with a discharge hole for shaving debris to fall downwards, and the outer moving blade is provided with a discharge notch aligned with the discharge hole when it is mounted on the outer blade support.
[0017] Compared with the prior art, the present invention has the following advantages:
[0018] 1. Improved shaving efficiency and coverage: This solution employs a dual-layer shaving structure design. Through the coordinated action of the outer moving blade and outer fixed blade cover, and the inner moving blade and inner fixed blade cover, two shaving zones can work simultaneously, significantly expanding the effective shaving area. Compared to traditional single-layer structures, this solution can process more beard hairs per unit time, improving shaving efficiency. Simultaneously, the dual-layer structure can adapt to areas with varying beard density, enhancing the overall shaving effect.
[0019] 2. Enhanced skin contact and shaving comfort: The inner fixed blade cover features an up-and-down floating structure, with an elastic element (such as a spring) pushing the inner blade support upwards, ensuring the inner moving blade remains in contact with the inner fixed blade cover, creating a floating shaving effect. This design effectively adapts to the contours of the face, such as the chin, Adam's apple, and cheeks, reducing pulling sensations and the risk of nicks, thereby improving comfort and closeness during shaving, especially suitable for people with sensitive skin.
[0020] 3. Optimized debris removal path for improved cleanliness and lifespan: This design incorporates debris removal structures in several key areas, such as the removal recess and hole between the outer blade and the outer blade holder, and the removal channel between the inner blade cover holder and the inner blade holder. This ensures that beard debris generated during shaving can be removed promptly and smoothly, preventing accumulation and blockage. This reduces issues such as blade head jamming and overheating, extending product lifespan. Furthermore, the optimized debris removal path also facilitates daily cleaning and maintenance, enhancing the overall user experience.
[0021] 4. Modular structural design improves assembly efficiency and maintainability (optional expansion). Various modular connection methods, such as snap-fit, limit blocks, mounting posts, and mounting holes, are used between components, making the overall structure easy to assemble and disassemble, which is beneficial for large-scale production and later maintenance. Meanwhile, detailed designs such as the support platform and guide surfaces enhance the structural strength of the blade, improving the product's stability and durability under high-speed operation. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structural state of the cutter head assembly of this utility model;
[0023] Figure 2 This is a cross-sectional schematic diagram of the cutter head assembly of this utility model;
[0024] Figure 3 This is an exploded view of the cutter head assembly of this utility model. Figure 1 ;
[0025] Figure 4 This is an exploded view of the cutter head assembly of this utility model. Figure 2 ;
[0026] Figure 5 This is an exploded view of the cutter head assembly of this utility model. Figure 3 . Detailed Implementation
[0027] The utility model will be further described below with reference to the accompanying drawings:
[0028] The orientations described in this utility model specification, such as "up," "down," "left," "right," "front," and "back," are based on the orientations in the accompanying drawings and are intended to facilitate the description of the relationships between the various components. They do not indicate the unique or absolute positional relationships between the various components, but are merely one embodiment of the utility model and are not a limitation on its implementation.
[0029] This embodiment describes a dual-mesh shaver head assembly, such as... Figure 1 and Figure 2 As shown, this type of blade assembly is mounted on an electric shaver, including an outer blade bracket 1 for connecting to the shaver's drive unit, and an outer fixed blade cover 2 on the top of the outer blade bracket 1. The bottom of the outer blade bracket 1 generally has a structure for drive connection with the output shaft of the electric shaver's drive motor B, allowing the outer blade bracket 1 to rotate. The outer fixed blade cover 2 is generally snapped onto the electric shaver's outer casing A, with the outer casing A preventing the outer fixed blade cover 2 from detaching outwards.
[0030] like Figures 2 to 5As shown, the outer fixed blade cover 2 has several first shaving holes 20 for beard hairs to enter the inner side of the outer fixed blade cover 2. An outer moving blade 3 is connected to the outer blade support 1, and the outer moving blade 3 has several first blades 31 extending upwards and abutting against the outer fixed blade cover 2. When the outer moving blade 3 rotates with the outer blade support 1, it shaves the entering beard hairs through the first blades 31.
[0031] The outer fixed blade cover 2 is annular and has a mounting ring 21 running vertically through its center. An inner fixed blade cover 4, capable of sliding up and down within the mounting ring 21, is housed within it. The inner fixed blade cover 4 has several second shaving holes 40, operating on the same principle as the outer fixed blade cover 2, used to guide beard hairs into the inner area for shaving. An inner blade support 5, capable of sliding up and down, is connected to the outer blade support 1. The outer moving blade 3 is an annular structure surrounding the inner blade support 5. An inner moving blade 6 is connected to the inner blade support 5, and the inner moving blade 6 has several upward-extending second blades 61 that abut against the inner fixed blade cover 4. An elastic element 7 is provided between the inner blade support 5 and the outer blade support 1 to push the inner blade support 5 upward, thereby causing the inner moving blade 6 to abut against the inner fixed blade cover 4, achieving a floating shaving effect. The inner fixed blade cover 4 is connected to an inner blade cover bracket 8. The inner blade cover bracket 8 has a limiting part 81 that can abut against the lower end of the mounting ring 21, thereby preventing the inner fixed blade cover 4 from detaching upwards. Structural principle explanation: This dual-wire shaver head assembly rotates the outer moving blade 3 relative to the outer fixed blade cover 2 through the rotation of the outer blade bracket 1, thus achieving a shaving function in the outer ring area. Simultaneously, the inner blade bracket 5 rotates with the outer blade bracket 1 and drives the inner moving blade 6 to rotate relative to the inner fixed blade cover 4, thus achieving a shaving function in the inner ring area. Furthermore, the inner fixed blade cover 4 adopts a floating design, so that the upper surface of the shaver head assembly has relatively floating and staggered shaving areas, which can better adapt to the uneven contours of human skin, thereby improving shaving efficiency and user comfort. The double-layer shaving structure design achieves simultaneous shaving in both inner and outer areas, improving shaving efficiency; the inner fixed blade cover can float up and down, enhancing skin contact and improving comfort; the elastic floating structure automatically adjusts shaving pressure to adapt to different facial areas.
[0032] As a preferred option, such as Figure 4 and Figure 5As shown, the inner blade cover bracket 8 is annular, and the inner fixed blade cover 4 has a locking hole 41 on its side wall. The outer cylindrical surface of the inner blade cover bracket 8 has a buckle 82 that can be inserted into the locking hole 41, thereby installing the inner fixed blade cover 4 through the inner blade cover bracket 8, making the structure more stable. This buckle connection method not only improves the connection between the inner fixed blade cover and the inner blade cover bracket, but also facilitates disassembly, cleaning, or replacement, improving the maintainability of the overall structure. As a better solution, the limiting part 81 is an annular protrusion on the outer cylindrical surface of the inner blade cover bracket 8, and the annular protrusion has several limiting notches 83. The mounting ring 21 has a limiting insert 22 that passes through the limiting notches 83 to limit the circumferential rotation of the inner blade cover bracket 8. This limiting structure effectively prevents the inner blade cover bracket from shifting circumferentially during operation, ensuring the stability of the inner fixed blade cover during floating, thereby improving the overall shaving effect and safety.
[0033] As a preferred option, such as Figure 4 and Figure 5 As shown, the outer blade support 1 is equipped with a mounting post 11. The elastic element 7 is a spring and is sleeved on the mounting post 11. The inner blade support 5 and the inner moving blade 6 are both sleeved on the mounting post 11. The top of the mounting post 11 is connected to a limiting and fixing element 9 that can prevent the inner moving blade 6 and the inner blade support 5 from falling upward, allowing the inner blade support 5 and the inner moving blade 6 to slide up and down. This structure uses the mounting post 11 to uniformly support the inner blade support, the inner moving blade, and the elastic element, ensuring that the movement of each component in the vertical direction is coordinated and consistent. At the same time, the limiting and fixing element 9 effectively prevents the components from falling off, improving the stability and safety of the overall structure.
[0034] As a preferred option, such as Figures 2 to 5 As shown, the inner blade cover bracket 8 is provided with a bracket protrusion ring 84 that surrounds the inner blade bracket 5 and protrudes toward the inner blade bracket 5, which makes the structure stronger.
[0035] In a preferred embodiment, the inner blade support 5 and the support protrusion ring 84 are respectively provided with an arc-shaped annular guide surface 51. The support protrusion ring 84 has an arc-shaped surface on the side near the annular guide surface 51, so that the support protrusion ring 84 and the annular guide surface 51 form a discharge channel 80 for shaving debris to fall downwards, so as to facilitate the downward discharge of shaving debris and avoid clogging that affects structural performance. The discharge channel formed by the guide surface and the support protrusion ring effectively guides the debris downwards and avoids accumulation in the blade area, thereby improving the cleanliness and service life of the blade assembly.
[0036] As a preferred option, such as Figures 2 to 5As shown, the inner moving blade 6 is provided with a plurality of circumferentially arranged support plates 62, the second blade 61 is disposed on the support plates 62, the support plates 62 are provided with a first mounting hole 63 on one side of the second blade 61, and the inner blade bracket 5 is provided with a first mounting post 52 corresponding to the first mounting hole 63 for insertion into the first mounting hole 63, thereby achieving installation and fixation.
[0037] As a better solution, the inner blade bracket 5 is provided with a support platform 53 on one side of the first mounting post 52 for abutting against the second blade 61, thereby providing circumferential fixed support for the second blade 61 and improving its resistance to deformation.
[0038] Preferably, the support platform 53 is provided with a support portion 54 protruding towards the second blade 61. To facilitate the installation of the inner moving blade 6 from top to bottom, the support portion 54 can be provided with an arc-shaped guide surface at its edge. This support structure not only enhances the structural strength of the second blade 61, preventing deformation during high-speed rotation, but also improves assembly efficiency and installation accuracy through the guide surface.
[0039] As a preferred option, such as Figures 2 to 5 As shown, the external moving blade 3 is provided with a plurality of second mounting holes 32 arranged circumferentially, and the external blade support 1 is provided with second mounting posts 12 corresponding to the second mounting holes 32 for insertion into the second mounting holes 32, thereby achieving installation and fixation.
[0040] As a better solution, the outer blade holder 1 is provided with a discharge hole 13 for shaving debris to fall downwards, and the outer moving blade 3 is provided with a discharge recess 33 that aligns with the discharge hole 13 when it is mounted on the outer blade holder 1. The design of the discharge hole and discharge recess ensures that the debris can be smoothly discharged after being cut, preventing accumulation that affects the working performance of the blade head, thereby improving the overall shaving efficiency and cleanliness.
[0041] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A double-mesh shaver head assembly, characterized in that: The device includes an outer blade holder (1) for connecting a shaver drive unit, an outer fixed blade cover (2) covering the outer blade holder (1), a plurality of first shaving holes (20) on the outer fixed blade cover (2), an outer moving blade (3) connected to the outer blade holder (1), a plurality of first blades (31) extending upward and abutting against the outer fixed blade cover (2) on the outer moving blade (3), the outer fixed blade cover (2) being annular and having a mounting ring (21) extending vertically through the center, an inner fixed blade cover (4) being disposed inside the mounting ring (21) and capable of sliding vertically within it, the inner fixed blade cover (4) having a plurality of second shaving holes (40), and a device capable of sliding vertically within the outer blade holder (1). The sliding inner blade support (5) has an outer moving blade (3) that is an annular structure surrounding the inner blade support (5). The inner blade support (5) is connected to an inner moving blade (6). The inner moving blade (6) is provided with several second blades (61) that extend upward and are used to abut against the inner fixed blade cover (4). An elastic element (7) is provided between the inner blade support (5) and the outer blade support (1) to push the inner blade support (5) upward so that the inner moving blade (6) abuts against the inner fixed blade cover (4). The inner fixed blade cover (4) is connected to an inner blade cover support (8). The inner blade cover support (8) is provided with a limiting part (81) that can abut against the lower end of the mounting ring (21) to prevent the inner fixed blade cover (4) from falling out upward.
2. The dual-mesh shaver head assembly according to claim 1, characterized in that: The inner blade cover bracket (8) is annular, the inner fixed blade cover (4) has a locking hole (41) on its side wall, and the outer cylindrical surface of the inner blade cover bracket (8) has a buckle (82) that can be inserted into the locking hole (41).
3. The dual-mesh shaver head assembly according to claim 2, characterized in that: The limiting part (81) is an annular protrusion on the outer cylindrical surface of the inner blade cover bracket (8). The annular protrusion has several limiting notches (83). The mounting ring (21) has a limiting insert (22) that passes through the limiting notches (83) and thus restricts the circumferential rotation of the inner blade cover bracket (8).
4. The dual-mesh shaver head assembly according to claim 1, characterized in that: The outer blade support (1) is provided with a mounting post (11), the elastic element (7) is a spring and is sleeved on the mounting post (11), the inner blade support (5) and the inner moving blade (6) are both sleeved on the mounting post (11), and the top of the mounting post (11) is connected to a limiting fixing element (9) that can prevent the inner moving blade (6) and the inner blade support (5) from falling out upward.
5. The dual-mesh shaver head assembly according to claim 2, characterized in that: The inner blade cover bracket (8) is provided with a bracket protrusion (84) that surrounds the inner blade bracket (5) and protrudes toward the inner blade bracket (5).
6. The dual-mesh shaver head assembly according to claim 5, characterized in that: The inner blade support (5) and the support protrusion ring (84) are respectively provided with an arc-shaped annular guide surface (51). The support protrusion ring (84) is an arc-shaped surface on the side close to the annular guide surface (51), so that the support protrusion ring (84) and the annular guide surface (51) form an exhaust channel (80) for shaving debris to fall downward.
7. The dual-filament shaver head assembly according to any one of claims 1-6, characterized in that: The inner moving blade (6) is provided with a plurality of circumferentially arranged support plates (62), the second blade (61) is disposed on the support plates (62), the support plates (62) are provided with a first mounting hole (63) on one side of the second blade (61), and the inner blade bracket (5) is provided with a first mounting post (52) corresponding to the first mounting hole (63) for insertion into the first mounting hole (63).
8. The dual-mesh shaver head assembly according to claim 7, characterized in that: The inner blade support (5) is provided with a support platform (53) on one side of the first mounting post (52) for abutting against the second blade (61).
9. The dual-mesh shaver head assembly according to claim 8, characterized in that: The support platform (53) is provided with a support portion (54) protruding toward the second blade (61).
10. The dual-filament shaver head assembly according to any one of claims 1-6, characterized in that: The external moving blade (3) is provided with a plurality of second mounting holes (32) arranged circumferentially. The external blade support (1) is provided with a second mounting post (12) corresponding to the second mounting hole (32) for insertion into the second mounting hole (32). The external blade support (1) is provided with a discharge hole (13) for shaving debris to fall downward. The external moving blade (3) is provided with a discharge notch (33) aligned with the discharge hole (13) when it is mounted on the external blade support (1).