Blade head structure of reciprocating shaver

Abstract

A blade head structure of a reciprocating shaver comprises a shaver head support, the bottom of the shaver head support and a shaver head bottom plate are fixed to form a blade assembly installation cavity, and the top of the shaver head support is provided with a blade hole for a blade assembly to penetrate out; a plurality of groups of blade assemblies which are distributed in parallel are fixed at the top of the tool bit bottom plate; the cutter is characterized in that the blade assembly comprises a movable cutter made of a relatively thick material, and holes or grooves for cutting are distributed in the surface of the movable cutter; the knife net is made of a relatively thin material, and holes into which beards extend are distributed in the surface of the knife net; a movable cutter is fixed at the top of the inner bracket; the inner bracket is fixed on the upper part of the outer bracket in an elastic floating manner; finally, the knife net is arranged on the movable knife in a sleeving mode and fixedly connected with the outer support to form a blade assembly, a user can disassemble and clean the shaver conveniently, the multiple sets of independent blade assemblies are better attached to the skin, short beards and long beards can be shaved, and the shaving efficiency is high.

Description

Technical Field

[0001] This utility model relates to a razor, and more particularly to a blade head structure for a reciprocating razor. Background Technology

[0002] Current reciprocating shaver heads generally employ a separate structure, where the moving blades and the fixed blades (foil) are on two independent components, which are then combined to form the shaving system. The biggest problems with this design are safety hazards and inconvenience in shaving. When cleaning stubble, the fixed blades (foil) must be removed, exposing the moving blades, which are very sharp and can easily cause mechanical injury. Cleaning stubble is also difficult. Furthermore, most reciprocating shaver systems on the market use a two-blade structure with mesh, which only allows for shaving shorter beards, and the two-blade shaving is inefficient. This is a major pain point for reciprocating shavers on the market today. Therefore, the market needs a multi-blade reciprocating shaver structure and blade arrangement to solve this problem.

[0003] A search revealed that Chinese patent CN202221727609.5 discloses a reciprocating shaver head, including a shaver head housing and one or more shaver unit assemblies mounted on the housing. Each shaver unit assembly includes at least one side-blade unit assembly mounted against the inner wall of the housing. The long beard guide slots on the skin-friendly cutting area of ​​the outer stationary blade of the side-blade unit assembly are arranged in multiple rows laterally. The row closest to the inner wall of the housing contains several long beard guide slots with outward openings, while the adjacent row contains several short beard guide slots. The long beard guide slots are located at the junction of the horizontal and vertical surfaces of the outer stationary blade. The moving blade cutting edge of the side-blade unit assembly corresponding to the long beard guide slots is comb-shaped. This highly rational distribution of long and short beard guide slots ensures that long beards have a large cutting channel during cutting or after entering the shaver head, greatly improving the shaving experience. It allows for a complete shave in one pass, eliminating the need for frequent shaving in the same area. Utility Model Content

[0004] This utility model mainly addresses the existing technology by proposing a blade head structure for a reciprocating razor, which consists of multiple independent blade assemblies, each fixed on a support assembly, making it convenient for users to disassemble and clean. Furthermore, the multiple independent blade assemblies fit the skin more closely, allowing for both short and long beard shavings with high efficiency.

[0005] The technical solution of this utility model is: a blade head structure for a reciprocating razor, comprising:

[0006] A cutter head bracket has its bottom fixed to the cutter head base plate to form a blade assembly mounting cavity, and its top has a blade hole for the blade assembly to pass through;

[0007] A single blade base plate with multiple sets of parallel blade assemblies fixed at the top;

[0008] The blade assembly is characterized by comprising:

[0009] The cutting tool is made of a relatively thick material with holes or grooves distributed on its surface to form the cutting surface.

[0010] One-knife net, made of a relatively thin material, with holes distributed on the surface to allow beard hairs to penetrate;

[0011] An inner support frame, with the moving blade fixed at the top;

[0012] An outer support frame, with the upper part elastically floating to fix the inner support frame;

[0013] Finally, the blade net is fitted onto the moving blade and connected and fixed to the outer support to form the blade assembly.

[0014] Further improvement: The top four edges of the cutter head base plate are provided with fixing blocks, and the inner wall of the corresponding cutter head bracket is provided with a slot to achieve a snap-fit ​​connection.

[0015] Further improvement: The top left and right sides of the cutter head base plate are provided with rows of fixing columns distributed inside the fixing block. The fixing columns are fitted with springs, so that the springs are supported between the cutter head base plate and the outer bracket, thereby increasing the spring-loaded fit.

[0016] Further improvement: The moving blade has an inverted U-shaped cross section, and the surface of the moving blade is distributed with strip-shaped holes or grooves with shearing angles. The width of the strip-shaped holes or grooves is between 0.3 mm and 0.5 mm, and the shearing angle is between 30° and 45°.

[0017] Further improvement: The strip-shaped holes or grooves are rectangular in shape and are distributed in parallel intervals.

[0018] Further improvements: The outer wall of the lower part of the moving blade is provided with a fixing hole, and the outer wall of the corresponding inner bracket is provided with a fixing block or a riveting block, which is fixed by snapping or riveting.

[0019] Further improvements: A positioning port is provided on the outer wall of the lower part of the moving blade, and a positioning block is provided on the outer wall of the corresponding inner bracket for installation and positioning.

[0020] Further improvements: The blade mesh has an inverted U-shaped cross-section, and the surface of the moving blade is distributed with mesh holes or strip holes. In addition, the outer wall of the lower part of the blade mesh is provided with fixing holes, and the outer wall of the corresponding outer bracket is provided with fixing blocks or riveting blocks, which are fixed by snap-fit ​​or riveting.

[0021] Further improvements: A positioning port is provided on the outer wall of the lower part of the moving blade, and a positioning block is provided on the outer wall of the corresponding inner bracket for installation and positioning.

[0022] Further improvements: The blade mesh has an inverted U-shaped cross-section, and the surface of the moving blade is distributed with mesh holes or strip holes. In addition, the outer wall of the lower part of the blade mesh is provided with fixing holes, and the outer wall of the corresponding outer bracket is provided with fixing blocks or riveting blocks, which are fixed by snap-fit ​​or riveting.

[0023] Further improvement: The outer support is U-shaped, with the inner support housed in the concave middle section, and moving blade springs for floating are provided on the left and right sides between the inner and outer supports.

[0024] Further improvement: The outer and inner supports are provided with a hollow section in the middle to facilitate the collection of fallen beard hairs.

[0025] Finally: The parallel distribution is such that the middle one is a relatively thick metal moving knife with a strip-shaped hole, and the other two sides are made of relatively thin metal knife mesh with a mesh, or the opposite distribution.

[0026] Compared with existing technologies, the advantages of this product are as follows: the blade mesh, moving blade, inner and outer supports, and moving blade spring are integrated into a single unit and then separately installed into the blade head base plate, which is then fastened to the blade head support to form a blade head component, becoming one part of the product. This shaving system has five independent blade assemblies. The central blade mesh uses thicker metal blades with circular or flat rectangular holes, while the other blade meshes are composed of mesh blades. This allows for shaving both short and long beards, with high shaving efficiency, easy cleaning of stubble, less risk of finger injury, and improved safety. Attached Figure Description

[0027] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0028] Figure 2 This is a partial exploded view of the structure of this utility model.

[0029] Figure 3 This is an exploded view of the structure of this utility model.

[0030] Figure 4 This is a bottom view of the exploded structure of this utility model.

[0031] Figure 5 This is a top-view diagram of the structure of this utility model after an explosion.

[0032] Figure 6 This is a three-dimensional sectional view of the structure of this utility model.

[0033] In the diagram, 1. Blade head bracket, 2. Blade head base plate, 3. Blade assembly mounting cavity, 4. Blade hole, 5. Blade assembly, 6. Moving blade, 7. Blade mesh, 8. Inner support, 9. Outer support, 10. Fixing block, 11. Fixing column, 12. Rebound spring, 13. Strip hole, 14. Mesh hole, 15. Fixing hole, 16. Fixing block, 17. Positioning port, 18. Positioning block, 19. Recessed part, 20. Moving blade spring, 21. Hollowed-out part, 22. Slot. Detailed Implementation

[0034] The embodiments of this utility model patent will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model patent, but should not be construed as limiting its scope. In the description of this utility model patent, unless otherwise stated, "multiple" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model patent 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, and therefore should not be construed as a limitation on this utility model patent. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model patent based on the specific circumstances.

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0037] according to Figures 1 to 6A reciprocating shaver blade head structure includes: a blade head support 1 whose bottom is fixed to a blade head base plate 2 to form a blade assembly mounting cavity 3, and a blade hole 4 at the top for the blade assembly 5 to pass through; five sets of parallel blade assemblies 5 are fixed to the top of the blade head base plate 2; the key feature of this utility model is that the blade assembly 5 includes: a moving blade 6 made of a relatively thick material with holes or grooves on its surface for cutting; a foil 7 made of a relatively thin material with holes on its surface for beard hairs to enter; the moving blade 6 is fixed to the top of an inner support 8; the inner support 8 is elastically and floatingly fixed to the upper part of an outer support 9; finally, the foil 7 is fitted onto the moving blade 6 and connected and fixed to the outer support 9 to form the blade assembly 5.

[0038] The blade base plate 2 has a roughly rectangular overall shape. Four fixing blocks 10 are typically used, distributed at the top, bottom, left, and right edges. Correspondingly, the inner wall of the blade holder 1 has four slots 22, also distributed at the top, bottom, left, and right edges, enabling a locking connection between the two. On the top left and right sides of the blade base plate 2, inside the fixing blocks 10, five fixed posts 11 are arranged in a row. Each fixed post 11 is fitted with a return spring 12, which supports the blade assembly 5 between the blade base plate 2 and the outer holder 9, increasing the rebound capability of the blade assembly 5 and its fit against the user's skin.

[0039] The moving blade 6 has an inverted U-shaped cross-section. Its surface is covered with strip-shaped holes 13 or grooves with shearing angles. In this embodiment, the strip-shaped holes 13 are used. The width of the holes 13 or grooves is between 0.3 mm and 0.5 mm, and the shearing angle is between 30° and 45°. The shape of the holes 13 or grooves is preferably rectangular, and they are parallel and spaced to meet the user's needs for shaving sharpness. The lower outer wall of the moving blade 6 has fixing holes 15, usually multiple holes arranged in a row. The corresponding outer wall of the inner support 8 has fixing blocks 16 or riveting blocks, which are used to connect and fix them together. The lower outer wall of the moving blade 6 has positioning openings 17, usually two in a row, distributed on the left and right sides. The corresponding outer wall of the inner support 8 has two positioning blocks 18, also in a row, distributed on the left and right sides, facilitating installation and positioning of both.

[0040] The cross-section of the knife mesh 7 is inverted U-shaped. The surface of the knife mesh 7 is distributed with mesh holes 14 or strip holes 13. Furthermore, the lower outer wall of the knife mesh 7 is provided with fixing holes 15, and the corresponding outer wall of the outer bracket 9 is provided with fixing blocks 16 or riveting blocks, which are fixed by snap-fit ​​or riveting.

[0041] The outer support 9 is U-shaped, allowing the inner support 8 to be accommodated in the concave portion 19. Supporting positioning posts 23 are located on both sides between the inner and outer supports 8 and 9. A moving blade spring 20 is fitted onto the outer wall of each support post 23 for the moving blade to float. The moving blade spring 20 is supported between the inner and outer supports 8, ensuring the inner support 8 maintains an upward floating tendency, increasing the fit of the blade assembly 5 to the user's skin. A hollow section 21 is provided in the middle of the outer and inner supports 9 to facilitate the collection of fallen beard hairs, preventing stubble from affecting the user experience. When the user actively removes the blade head support 1, the moving blade 6 remains on the inner support 8, protected by the blade net 7 on the outer support 9. The blade head support 1 then lacks a sharp blade, preventing mechanical injury and facilitating stubble removal. Furthermore, because the outer support 9 and the inner support 8 have a hollow section 21 in the middle, the stubble falls onto the top of the electric shaver body. After removing the blade head, it can be cleaned with a brush, effectively preventing accidental injury to the fingers from the moving blade 6 and improving safety. The blade assembly 5 is arranged side by side with a relatively thick metal moving blade 6 with a slotted hole 13 in the middle, and the other two blades are relatively thin metal foils 7 with mesh openings, or vice versa. This arrangement allows for shaving both short and long beards with high efficiency, addressing the concerns of users regarding existing shavers.

[0042] In this embodiment, the bottom of the moving blade 6 extends downward to form a locking structure that connects to the drive shaft of the drive device, the blade head bracket 1 is detachably connected to the shaver body, and other structures not described in detail all employ conventional technical means, which will not be described in detail here.

[0043] When installing this product, the worker first snaps or rivets the moving blade 6 onto the inner bracket 8. Then, the moving blade spring 20 is fixed to the positioning posts 23 on both sides of the inner bracket 8. Next, the inner bracket 8 is assembled onto the outer bracket 9. Finally, the blade net 7 is riveted to the outer bracket 9 using a tooling, thus forming an independent blade assembly 5. Afterward, each independent blade assembly 5 is assembled into its corresponding position on the shaving head bracket 1 according to the arrangement. Each blade assembly 5 has a retaining spring 12 on its fixing post 11, allowing the assembled blade to float up and down. Finally, the shaving head bracket 1 is fastened to the shaving head base plate 2, thus forming a complete shaving head assembly.

Claims

1. A blade head structure of a reciprocating shaver, comprising: a blade head support, a bottom of which is fixed with a blade head bottom plate to form a blade assembly mounting cavity, and a top of which is provided with a blade hole for a blade assembly to pass through; a blade head bottom plate, a top of which is fixed with a plurality of parallel distributed blade assemblies; characterized in that the blade assembly comprises: a moving blade made of a relatively thick material, a surface of which is distributed with cutting holes or grooves; a blade net made of a relatively thin material, a surface of which is distributed with holes for hair to extend into; an inner support, a top of which is fixed with the moving blade; an outer support, an upper portion of which is elastically and floatingly fixed with the inner support; and finally the blade net is sleeved on the moving blade and is fixed with the outer support, forming the blade assembly.

2. A blade head structure for a reciprocating shaver according to claim 1 characterized in that: The top of the blade head bottom plate is provided with a fixed clamping block at a peripheral edge portion, and the inner wall of the corresponding blade head support is provided with a clamping groove, achieving clamping connection.

3. A shaving blade head structure for a reciprocating shaver according to claim 2, characterized in that: The left and right sides of the top of the blade head bottom plate are distributed with fixed columns in a column at the inner side of the fixed clamping block, and the fixed columns are sleeved with a rebound spring, so that the rebound spring is supported between the blade head bottom plate and the outer support, increasing rebound adhesion capacity.

4. A blade head structure for a reciprocating shaver according to claim 1 characterized in that: The moving blade is in an inverted U-shaped cross section, and the surface of the moving blade is distributed with strip holes or grooves with a shearing angle, the width of the strip holes or grooves is between 0.3 mm and 0.5 mm, and the shearing angle is between 30° and 45°.

5. A shaving blade head structure for a reciprocating shaver according to claim 4, characterized in that: The strip holes or grooves are in a rectangular shape and are distributed in parallel and at intervals.

6. A shaving blade head structure for a reciprocating shaver according to claim 5, characterized in that: The outer wall of the lower portion of the moving blade is provided with a fixed hole, and the outer wall of the corresponding inner support is provided with a fixed block or a riveting block, achieving clamping or riveting connection and fixation.

7. A shaving blade head structure for a reciprocating shaver according to claim 6, characterized in that: The outer wall of the lower portion of the moving blade is provided with a positioning port, and the outer wall of the corresponding inner support is provided with a positioning block, achieving installation and positioning.

8. The shaving razor blade head structure of claim 1 wherein: The blade net is in an inverted U-shaped cross section, the surface of the moving blade is distributed with mesh holes or strip holes, and the outer wall of the lower portion of the blade net is provided with a fixed hole, and the outer wall of the corresponding outer support is provided with a fixed block or a riveting block, achieving clamping or riveting connection and fixation.

9. The reciprocating blade head structure according to claim 1, characterized by: The outer support is in a U shape, so that the middle inner recess portion accommodates the inner support, and the left and right sides between the inner support and the outer support are supported with a moving blade spring for the moving blade to float.

10. The shaving razor blade head structure of claim 1 wherein: The middle portions of the outer support and the inner support are provided with a hollow portion, facilitating collection of fallen hair; and the parallel distribution is that the middle portion is a relatively thick metal moving blade with strip holes, and the other two sides are metal blade nets with mesh holes, or vice versa.

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