Cutter head assembly and shaver

By installing an elastic structure on the moving blade of the electric shaver, the problem of loose stationary blades is solved, achieving a tight fit between the moving and stationary blades, thus improving shaving performance and production efficiency.

CN223834567UActive Publication Date: 2026-01-27SHENZHEN BIKUN TECH CO LTD
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Patent Information

Application Number
CN202422960055.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-02
Publication Date
2026-01-27
Estimated Expiration
2034-12-02

AI Technical Summary

Technical Problem

In existing electric shavers, the two stationary blades of the shaver head are prone to loosening during use, resulting in a loose fit between the moving blade and the stationary blade, which affects the shaving effect.

Method used

It adopts a single stationary blade design and installs an elastic structure on the moving blade. The elastic structure squeezes the moving blade to make it fit tightly with the stationary blade and prevents it from loosening.

Benefits of technology

The improved fit between the moving and stationary blades enhances the shaving effect, increases production efficiency, and maintains the original cutting function.

✦ Generated by Eureka AI based on patent content.

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Abstract

The shaver head assembly comprises the shaver head assembly, and the shaver head assembly comprises a shell, a static blade, a movable blade and an elastic structure. The static blade is arranged on the end face of the shell. The movable blade is attached to the static blade; the elastic structure is arranged in the inner cavity of the shell and is used for extruding the movable blade to move towards the static blade; an original shaver head provided with double static blades is improved, only one static blade and the movable blade are reserved to form a cutting structure, the elastic structure used for extruding the movable blade is installed on the movable blade, and the movable blade and the static blade are attached more tightly through extrusion of the elastic structure, so that the cutting effect is better. The movable blade and the static blade are effectively prevented from loosening, due to the fact that only one static blade is arranged, the splicing structure of the tool bit is reduced, the production efficiency is improved, the original cutting function cannot be affected by combining an elastic structure, and the compactness of the movable blade and the static blade can be improved.
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Description

Technical Field

[0001] This utility model relates to the field of shaving equipment technology, and in particular to a blade assembly and a razor. Background Technology

[0002] With the improvement of living standards and the increasing awareness of men's personal care, the razor industry has developed rapidly. Razor products can be broadly divided into two categories: manual razors and electric razors, widely used in men's daily personal care and beauty. One type of electric razor on the market has a head structure consisting of two stationary blades surrounding a moving blade. The moving blade reciprocates within the stationary blades, and the V-shaped teeth on the edges of the moving and stationary blades interact to cut hair or beard hair, thus achieving a shave. While this type of razor can quickly cut hair or beard hair, if there is even slight looseness between the two stationary blades during use, the moving and stationary blades may not fit tightly together, affecting the shave. Summary of the Invention

[0003] In order to solve the above-mentioned technical problems, this utility model provides a blade assembly and a shaver.

[0004] The technical solution of this utility model is implemented as follows:

[0005] A cutting head assembly includes a housing, a stationary blade, a moving blade, and a resilient structure;

[0006] The stationary blade is disposed on the end face of the housing;

[0007] The moving blade and the stationary blade are fitted together.

[0008] The elastic structure is disposed inside the cavity of the housing and is used to compress the moving blade to move towards the stationary blade.

[0009] Furthermore, the elastic structure includes a spring-loaded bracket that adheres to the other side of the moving blade. The spring-loaded bracket includes a horizontal support plate and top plates disposed at both ends of the horizontal support plate. The horizontal support plate abuts against the inner cavity of the housing, and one end of the top plate abuts against the moving blade.

[0010] Furthermore, the top plate and the horizontal support plate are inclined and integrally formed.

[0011] Furthermore, the elastic structure also includes a compression plate disposed between the elastic support and the moving blade, wherein one side of the compression plate abuts against the top plate and the other side of the compression plate is connected to the moving blade.

[0012] Furthermore, the horizontal support plate is rectangular, and the top pieces are symmetrically arranged on both sides of the horizontal support plate (42), and there are at least two top pieces.

[0013] Furthermore, the adjacent top plates are symmetrical in pairs, and the end of the top plate away from the horizontal support plate is curved and supported on the extrusion plate.

[0014] Furthermore, the bottom wall inside the housing is provided with a first opening for the drive mechanism to pass through, and the horizontal support plate is provided with a second opening corresponding to the first opening for the drive mechanism to pass through.

[0015] Furthermore, one of the moving blade and the extrusion plate is provided with a positioning hole, and the other of the moving blade and the extrusion plate is provided with a positioning block that is engaged in the positioning hole.

[0016] Furthermore, a fixing bolt is also installed on the outer shell, and a horizontal pressure plate is detachably installed on the other end of the fixing bolt. The side of the stationary blade away from the moving blade is provided with a receiving groove and a through hole communicating with the receiving groove. The horizontal pressure plate is disposed in the receiving groove, and one end of the fixing bolt passes through the through hole and is connected to the horizontal pressure plate.

[0017] A razor including a blade assembly.

[0018] Compared with the prior art, this utility model has the following advantages:

[0019] This invention improves upon existing shaver heads with double stationary blades by retaining only one stationary blade and a moving blade to form the cutting structure. An elastic structure is installed on the moving blade to compress it. This compression ensures a tighter fit between the moving and stationary blades, effectively preventing loosening. Furthermore, the use of only one stationary blade reduces the number of assembly components, improving production efficiency. Combined with the elastic structure, it does not affect the original cutting function and enhances the tightness between the moving and stationary blades, thus improving the overall shaving effect. This solves the problem of slight loosening between the two stationary blades in existing shaver heads during use, which can lead to a loose fit between the moving and stationary blades and affect shaving performance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a cutter head assembly according to the present invention;

[0021] Figure 2 This is one of the exploded structural diagrams of a cutter head assembly according to this utility model;

[0022] Figure 3This is the second exploded view of the structure of a cutter head assembly in this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of a razor according to the present invention.

[0024] 1. Outer shell; 2. Stationary blade; 3. Moving blade; 4. Elastic structure; 41. Elastic support; 42. Horizontal support plate; 43. Top plate; 44. Extrusion plate;

[0025] 5. First opening; 6. Second opening; 7. Positioning hole; 8. Positioning block; 9. Fixing bolt; 10. Horizontal pressure plate; 11. Receiving groove; 12. Through hole; 13. Drive mechanism. Detailed Implementation

[0026] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0027] like Figure 1-3 As shown, a cutter head assembly includes a housing 1, a stationary blade 2, a moving blade 3, and an elastic structure 4;

[0028] The stationary blade 2 is disposed on the end face of the housing 1;

[0029] The moving blade 3 is fitted together with the stationary blade 2;

[0030] The elastic structure 4 is disposed in the inner cavity of the outer shell 1 and is used to compress the moving blade 3 to move towards the stationary blade 2.

[0031] In this embodiment, the moving blade 3 and the stationary blade 2 are fitted together. An elastic structure 4 is installed at one end of the moving blade 3 to exert a squeezing effect on the moving blade 3, squeezing the moving blade 3 toward the stationary blade 2, so that the fit between the moving blade 3 and the stationary blade 2 is tighter, preventing the moving blade 3 and the stationary blade 2 from loosening during use.

[0032] Furthermore, the elastic structure 4 includes an elastic bracket 41 attached to the other side of the moving blade 3. The elastic bracket 41 includes a horizontal support plate 42 and top pieces 43 disposed at both ends of the horizontal support plate 42. The horizontal support plate 42 abuts against the inner cavity of the outer shell 1, and one end of the top piece 43 abuts against the moving blade 3.

[0033] Furthermore, the top plate 43 and the horizontal support plate 42 are inclined and integrally formed.

[0034] Several top plates 43 are arranged around the horizontal support plate 42. The top plates 43 are inclined on the horizontal support plate 42 and have a certain deformation capacity. The top plates 43 on the elastic bracket 41 directly abut against the moving blade 3, and squeeze the moving blade 3 to make it fit more closely with the stationary blade 2.

[0035] Furthermore, the elastic structure 4 also includes a compression piece 44, which is disposed between the elastic support 41 and the moving blade 3, wherein one side of the compression piece 44 abuts against the top plate 43 and the other side of the compression piece 44 is connected to the moving blade 3.

[0036] In some embodiments, a compression plate 44 is provided between the elastic support 41 and the moving blade 3. The elastic support 41 directly applies compression force to the compression plate 44, and the compression plate 44 compresses the moving blade 3. By using the compression plate 44, the compression of the moving blade 3 by the elastic support 41 can be made more uniform.

[0037] Furthermore, the horizontal support plate 42 is rectangular, and the top plate 43 is symmetrically arranged on both sides of the horizontal support plate 42, and there are at least two top plates 43.

[0038] Furthermore, the adjacent top plates 43 are symmetrical in pairs, and the end of the top plate 43 away from the horizontal support plate 42 is curved and supported on the extrusion plate 44.

[0039] The symmetrically arranged top plate 43 can uniformly compress the moving blade 3 or the extrusion plate 44, improve the extrusion effect, and prevent uneven contact between the moving blade 3 and the stationary blade 2 due to uneven extrusion, thus preventing any impact on the normal cutting function.

[0040] Furthermore, the bottom wall inside the outer casing 1 is provided with a first opening 5 for the drive mechanism 13 to pass through, and the horizontal support plate 42 is provided with a second opening 6 corresponding to the first opening 5 for the drive mechanism 13 to pass through.

[0041] In this embodiment, the drive mechanism 13 is connected to the cutter head assembly. Specifically, one end of the drive mechanism 13 passes through the first opening 5 and is fixedly connected to the moving blade 3 or the extrusion plate 44 to drive the moving blade 3 to reciprocate and realize the hair cutting function. The drive mechanism 13 to drive the moving blade 3 is usually realized by a motor and a swing arm. The motor drives the swing arm, and the swing arm reciprocates, thereby driving the moving blade 3 to reciprocate.

[0042] Furthermore, one of the moving blade 3 and the extrusion plate 44 is provided with a positioning hole 7, and the other of the moving blade 3 and the extrusion plate 44 is provided with a positioning block 8 that is engaged in the positioning hole 7.

[0043] The extrusion plate 44 and the moving blade 3 are coupled together, and when the extrusion plate 44 is driven, it can move synchronously with the moving blade 3.

[0044] Furthermore, a fixing bolt 9 is also installed on the outer casing 1, and a horizontal pressure plate 10 is detachably installed on the other end of the fixing bolt 9. The side of the stationary blade 2 away from the moving blade 3 is provided with a receiving groove 11 and a through hole 12 communicating with the receiving groove 11. The horizontal pressure plate 10 is disposed in the receiving groove 11, and one end of the fixing bolt 9 passes through the through hole 12 and is connected to the horizontal pressure plate 10.

[0045] The horizontal pressure plate 10 and the fixing bolt 9 further enhance the stability of the shaving head assembly and ensure that the shaving head assembly maintains a uniform fit with the user's face during shaving.

[0046] like Figure 4 As shown, a razor includes a blade assembly.

[0047] In this embodiment, the blade head assembly is typically a component located at one end of the razor handle, and the handle controls the opening and closing of the blade head assembly to perform shaving or hair cutting.

[0048] The working process and principle of this utility model are as follows:

[0049] The blade assembly of this utility model is provided with only one stationary blade 2 and one moving blade 3. The reciprocating motion between the moving blade 3 and the stationary blade 2 enables the hair cutting function. An elastic structure is provided on the other side of the moving blade 3 to press the moving blade 3 toward the stationary blade 2, thereby improving the tightness of the fit between the moving blade 3 and the stationary blade 2 and thus improving the cutting effect. At the same time, it can prevent the moving blade 3 and the stationary blade 2 from becoming loose.

[0050] Specifically, the elastic structure includes an elastic support 41. The top piece 43 of the elastic support 41 is used to press the moving blade 3, which can improve the tightness of the fit between the moving blade 3 and the stationary blade 2. Alternatively, an extrusion piece 44 can be added between the elastic support 41 and the moving blade 3 to further improve the uniformity of extrusion and prevent the moving blade 3 from shifting or tilting due to uneven extrusion.

[0051] During shaving or hair cutting, the drive structure is activated to drive the moving blade 3 to reciprocate within the housing 1. The moving blade 3 and the stationary blade 2 are positioned at the edges and move with each other to achieve the functions of shaving and hair cutting. Furthermore, since the housing 1 is also equipped with an elastic structure, it can prevent the moving blade 3 from becoming loose between the moving blade 3 and the stationary blade 2 during the reciprocating motion.

[0052] The specific embodiments of the utility model have been described in detail above, but they are only examples. The utility model is not limited to the specific embodiments described above. Those skilled in the art should understand that the embodiments and descriptions above are merely illustrative of the principles of the utility model. Various changes and modifications can be made to the utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the utility model as claimed. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cutter head assembly, characterized in that: It includes a housing (1), a stationary blade (2), a moving blade (3), and an elastic structure (4); The stationary blade (2) is disposed on the end face of the outer casing (1); The moving blade (3) is fitted together with the stationary blade (2); The elastic structure (4) is disposed in the inner cavity of the outer shell (1) and is used to squeeze the moving blade (3) to move toward the stationary blade (2); The elastic structure (4) includes an elastic bracket (41) attached to the other side of the moving blade (3), and the elastic bracket (41) includes a horizontal support plate (42) and top pieces (43) disposed at both ends of the horizontal support plate (42).

2. The cutter head assembly according to claim 1, characterized in that: The horizontal support plate (42) abuts against the inner cavity of the outer shell (1), and one end of the top plate (43) abuts against the moving blade (3).

3. A cutter head assembly according to claim 1, characterized in that: The top plate (43) and the horizontal support plate (42) are inclined and integrally formed.

4. A cutter head assembly according to claim 1, characterized in that: The elastic structure (4) further includes a compression piece (44), which is disposed between the elastic support (41) and the moving blade (3). One side of the compression piece (44) abuts against the top piece (43), and the other side of the compression piece (44) is connected to the moving blade (3).

5. A cutter head assembly according to claim 4, characterized in that: The horizontal support plate (42) is rectangular, and the top plate (43) is symmetrically arranged on both sides of the horizontal support plate (42), and there are at least two top plates (43).

6. A cutter head assembly according to claim 5, characterized in that: The adjacent top plates (43) are symmetrical in pairs, and the end of the top plate (43) away from the horizontal support plate (42) is bent in an arc shape and supported on the extrusion plate (44).

7. A cutter head assembly according to claim 2, characterized in that: The bottom wall inside the outer shell (1) is provided with a first opening (5) for the drive mechanism (13) to pass through, and the horizontal support plate (42) is provided with a second opening (6) corresponding to the first opening (5) for the drive mechanism (13) to pass through.

8. A cutter head assembly according to claim 4, characterized in that: One of the moving blade (3) and the extrusion plate (44) is provided with a positioning hole (7), and the other of the moving blade (3) and the extrusion plate (44) is provided with a positioning block (8) that is engaged in the positioning hole (7).

9. A cutter head assembly according to claim 1, characterized in that: A fixing bolt (9) is also installed on the outer shell (1). A horizontal pressure plate (10) is detached and installed on the other end of the fixing bolt (9). A receiving groove (11) and a through hole (12) communicating with the receiving groove (11) are provided on the side of the stationary blade (2) away from the moving blade (3). The horizontal pressure plate (10) is disposed in the receiving groove (11). One end of the fixing bolt (9) passes through the through hole (12) and is connected to the horizontal pressure plate (10).

10. A razor, characterized in that, Includes the cutter head assembly as described in any one of claims 1-9.