razor head

Abstract

A razor head comprises a head cover, a generally U-shaped side fixed cutter fixedly connected to the side of the head cover, a side movable cutter elastically connected below the side fixed cutter and reciprocally translatable relative to the side fixed cutter, a cutter holder, an elastic body, and a middle cutter assembly. The lower part of the cutter holder is provided with a driving element in driving connection with a transmission mechanism. The two side walls of the cutter holder base are symmetrically provided with a plurality of elastic body connecting terminals. The upper end of the elastic body is connected to the elastic body connecting terminal, and the lower end is connected to the side fixed cutter or a fixed accessory in a fixed position relative to the head cover. The side movable cutter is elastically suspended and supported below the side fixed cutter through the elastic body. The cutter holder base is provided with two upwardly extending upper folded ear pieces. The left and right outer walls of the driving element are provided with positioning grooves for the two upper folded ear pieces of the side movable cutter to be inserted from below to above. The side movable cutter elastically suspended and supported below the side fixed cutter is coupled to the cutter holder through the cooperation of the two upper folded ear pieces and the positioning grooves, thereby achieving suspension damping and facilitating assembly.

Description

Technical Field

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

[0002] A razor is a tool used for shaving hair, consisting of a razor head and a body for driving the razor head. The razor head has moving blades and fixed blades. When the razor is working, the moving blades move laterally relative to the fixed blades to cut and remove the hair. Some existing razors have multiple shaving units to perform multi-directional work. However, for the side shaving units, especially those with the moving blades above the fixed blades, the blades can easily cut the skin during movement, posing a safety hazard. For side shaving units with the moving blades at the bottom, due to their position, the side moving blades and side stationary blades cannot both use a U-shaped adapter structure, and the driving connection of the side moving blades is relatively complex. Generally, the following two methods are used: 1. The side moving blades are directly installed in layers on the central moving blade holder. However, due to space limitations, the corresponding side stationary blades will use a flat cover plate. 2. The side moving blades are linked to the driving unit through a connecting piece, i.e., an additional side moving blade holder. However, this structure is complex, assembly is troublesome, and it brings great difficulties to vibration reduction and noise reduction. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a razor head that is easy to assemble, provides efficient cutting, and is comfortable and quiet.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a razor head, comprising a head cover, a generally U-shaped side fixed blade fixedly connected to the head cover, a side moving blade elastically connected below the side fixed blade and capable of reciprocating relative to the side fixed blade, a moving blade holder, a spring body, and an intermediate blade assembly. The lower part of the moving blade holder has a drive unit that is connected to a transmission mechanism, and the moving blade holder drives the side moving blade and the intermediate moving blade in the intermediate blade assembly to achieve lateral reciprocating motion. The side fixed blade includes a U-shaped blade holder body and side eaves extending outward from the two upper edges of the U-shaped blade holder body. The side eaves are provided with side fixed blade teeth distributed along the length direction. The side moving blade includes a generally U-shaped blade holder base adapted to the blade holder body and moving blade eaves extending outward from the two upper edges of the U-shaped blade holder base. The moving blade eaves are provided with side fixed blade teeth distributed along the length direction. The cutting teeth are located below the fixed side blade teeth and are not exposed. The bottom surface of the tool holder base has a central through hole for the drive unit to pass through. Several spring-loaded connecting terminals are symmetrically arranged on the two side walls of the tool holder base. The upper end of the spring is connected to the spring-loaded connecting terminal, and the lower end is connected to the fixed side blade or fixing accessory fixed relative to the position of the cutter head cover. The side moving blade is elastically suspended and supported below the fixed side blade by the spring. The tool holder base has two upwardly extending upper folding lugs. The left and right outer side walls of the drive unit have positioning grooves for the two upper folding lugs of the side moving blade to be inserted from bottom to top. Through the cooperation of the two upper folding lugs and the positioning grooves, the side moving blade, which is elastically suspended and supported below the fixed side blade, is connected to the moving blade holder. Driven by the moving blade holder, the side cutting teeth of the side moving blade elastically and reciprocate relative to the lower surface of the fixed side blade teeth to achieve cutting.

[0005] As an improvement: the free end of the side blade fixed tooth facing outward is an arc end, and the arc end protrudes upward in an arc at the free end of the side blade fixed tooth.

[0006] As an improvement: the free end of the side blade fixed tooth facing outward is an arc end, and the arc end protrudes in a spherical shape at the free end of the side blade fixed tooth.

[0007] As an improvement: the free end of the side blade fixed tooth facing outward is an arc end, and the width of the connection between the side blade fixed tooth and the arc end is smaller than the width of the arc end.

[0008] As an improvement: the fixing accessory is a magnetic attachment that is fixedly connected to the blade cover and below the side moving blade. The magnetic attachment magnetically engages with the machine body to form a detachable connection between the blade and the machine body.

[0009] As an improvement, the fixing accessory is further provided with several support arms that extend outward from the fixing accessory body and can abut against the inner wall of the cutter head housing.

[0010] As an improvement: the intermediate moving blade in the intermediate blade assembly is connected to the U-shaped blade holder body above the moving blade holder. The intermediate blade assembly includes an intermediate stationary blade and an intermediate stationary blade holder for fixing the intermediate stationary blade. The intermediate stationary blade is fixed above the intermediate moving blade in the U-shaped blade holder body by the insertion and engagement of the stationary blade holder with the blade holder body.

[0011] As an improvement: the intermediate moving blade in the intermediate blade assembly is connected to the upper part of the moving blade holder in the U-shaped blade holder body, and the intermediate blade assembly includes an intermediate mesh cover, which is fixedly installed above the intermediate moving blade by a blade head cover.

[0012] This utility model has the following advantages compared with the prior art:

[0013] 1. Both the side moving tool and the side stationary tool are roughly U-shaped, and the two are machined with corresponding precision, resulting in better fit.

[0014] 2. The design features a side-moving blade at the bottom, with the side cutting teeth of the side-moving blade not exposed below the fixed teeth of the side blade, which greatly improves the feel and safety.

[0015] 3. The side moving blade is elastically suspended and supported below the side fixed blade by a projectile, allowing the side moving blade to adaptively cooperate with the lower surface of the side edge of the side fixed blade during cutting, effectively avoiding shaving and pulling, and greatly improving the shaving feel. Furthermore, the upper end of the projectile is connected to the side wall of the side moving blade, while the lower end is fixed. Driven by the moving blade holder, the projectile deforms into an inclined state, and the side moving blade returns to the center point under the action of the rebound force of the inclined projectile, realizing the adaptive cooperation of the side moving blade and the side fixed blade to return to their positions in an instant.

[0016] 4. Since the lower end of the projectile is connected to the inside of the cutter head, forming a cutter head assembly that is separate from the cutter head housing, the entire cutter head assembly is independent, which facilitates assembly, disassembly, installation, cleaning, maintenance and replacement.

[0017] 5. The side-mounted moving cutter elastic suspension support structure plays a suspension and shock absorption role, effectively buffering and reducing vibration between the cutter head housing and the side cutter assembly, and between the side cutter assembly and the intermediate cutter assembly, further reducing the vibration of the cutter head housing.

[0018] 6. The side moving blade is inserted from top to bottom into the lower part of the moving blade holder. The upper part of the moving blade holder provides clearance for the intermediate blade assembly, which is conducive to the formation of unit groups of intermediate blade assemblies. This greatly facilitates the assembly of intermediate blade assemblies and can be adapted to intermediate blade assemblies of various blade types, thus improving compatibility.

[0019] 7. The internal structure is clear, compact, and reasonable.

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the first embodiment of the razor head of this utility model.

[0022] Figure 2 for Figure 1 A schematic diagram of the explosion structure.

[0023] Figure 3 This is a schematic diagram of the second embodiment of the razor head of this utility model.

[0024] Figure 4 for Figure 3 A schematic diagram of the explosion structure.

[0025] Figure 5 This is a schematic diagram of the third embodiment of the razor head of this utility model. Detailed Implementation

[0026] like Figure 1 , Figure 2 As shown, the first embodiment of the razor head of this utility model includes a razor head cover 1, a generally U-shaped side fixed blade 2 fixedly connected to the razor head cover 1, a side movable blade 3 elastically connected below the side fixed blade and capable of reciprocating relative to the side fixed blade, a movable blade holder 4, a spring 5, and an intermediate blade assembly. The lower part of the movable blade holder 4 has a drive element 41 that is connected to a transmission mechanism. The spring is a spring that drives the side movable blade and the intermediate movable blade in the intermediate blade assembly to achieve lateral reciprocating motion. The side fixed blade 2 includes a U-shaped blade holder body 21 and a blade assembly respectively derived from the U-shaped blade holder body. 21. Side eaves 22 extending outward from the two upper edges are provided with side blade fixed teeth 23 distributed along the length direction. The side moving blade 3 includes a generally U-shaped blade holder base 31 adapted to the blade holder body 21, and moving blade eaves 32 extending outward from the two upper edges of the U-shaped blade holder base. The moving blade eaves 32 are provided with side cutting teeth 33 distributed along the length direction. The side cutting teeth 33 are not exposed below the side blade fixed teeth. The bottom surface of the blade holder base 31 has a central through hole 31a for the drive unit 41 to pass through.

[0027] Four spring-loaded connecting terminals 31c are symmetrically arranged on both sides of the blade holder base. The upper end of the spring is connected to the spring-loaded connecting terminal 31c, and the lower end is connected to the side fixed blade 2, which is fixed relative to the blade head cover 1. This allows the side moving blade 3 to be elastically suspended and supported below the side fixed blade through the spring. The blade holder base 31 has two upwardly extending upper folding lugs 31b. The left and right outer sides of the drive unit 41 have positioning grooves 42 for the two upper folding lugs 31b of the side moving blade 3 to be inserted from bottom to top. Through the cooperation of the two upper folding lugs 31b and the positioning grooves 42, the side moving blade 3, which is elastically suspended and supported below the side fixed blade, is connected to the moving blade holder 4. Under the drive of the moving blade holder 4, the side cutting teeth 33 of the side moving blade 3 elastically and tightly adhere to the lower surface of the side fixed blade teeth of the side fixed blade 2, and reciprocate to achieve cutting. In this embodiment, the intermediate blade assembly is installed inside the U-shaped blade holder body 21. Specifically, the intermediate moving blade of the intermediate blade assembly is connected above the moving blade holder 4 within the U-shaped blade holder body 21. The intermediate blade assembly includes an intermediate stationary blade and an intermediate stationary blade holder for fixing the intermediate stationary blade. The intermediate stationary blade is fixed above the intermediate moving blade within the U-shaped blade holder body 21 through an insertion fit between the stationary blade holder and the blade holder body. For better safety and feel, the free end of the side blade fixed blade teeth facing outwards is an arc end 24. The width at the connection between the side blade fixed blade teeth and the arc end is smaller than the width of the arc end. In this embodiment, the arc end is designed to bulge upwards at the free end of the side blade fixed blade teeth.

[0028] In this embodiment, a fixing accessory is also provided below the side-moving blade. This fixing accessory has several support arms 61 extending outward from the fixing accessory body to support the inner wall of the blade head housing. The support arms 61 provide further cushioning and shock absorption for the blade head housing, while the fixing accessory packs the blade head into a blade head assembly that can be detached from the blade head housing. In this embodiment, the fixing accessory can be designed as a magnetic coupling component 6. The magnetic coupling component magnetically engages with the machine body to form a detachable connection between the blade head and the machine body. Of course, if a magnetic coupling connection is not required, it can be omitted. This fixing accessory can be configured as needed.

[0029] like Figure 3 , Figure 4 As shown, the second embodiment of the razor head of this utility model differs from the first embodiment in that: the upper end of the spring body in this embodiment is connected to the spring body connecting end 31c, and the lower end is connected to a fixing accessory fixed relative to the razor head cover 1. That is, the two sides of the middle bottom wall of the fixing accessory are bent upwards and extended or stamped to form connecting arms 62 connecting the lower end of the spring body. In this embodiment, the fixing accessory is connected to the razor head cover through a snap-fit ​​structure, so that the lower end of the spring body is fixed, and the side moving blade forms an elastic suspension support structure, which effectively buffers and reduces shock, further weakening the vibration of the razor head shell.

[0030] like Figure 5As shown, this is the third embodiment of the razor head of the present invention. The difference between this embodiment and the first embodiment is that the intermediate blade assembly in this embodiment is a mesh cover type. That is, the intermediate moving blade in the intermediate blade assembly is connected to the moving blade holder 4 above the U-shaped blade holder body 21. The intermediate blade assembly includes an intermediate mesh cover, which is fixedly installed above the intermediate moving blade by the blade head cover 1. Of course, other types of intermediate blade assemblies can also be used, as long as the intermediate moving blade is connected to the moving blade holder. The structure has good compatibility. In this embodiment, the end of the side eaves 22 is designed as a horizontal column arc protrusion, and the arc end is a spherical protrusion at the free end of the side blade fixed blade tooth, so that the edge has no sharp corners. The spherical protrusion and the side blade fixed blade tooth are integrated seamlessly. It is an advanced version of the thickened design, which is safe and smooth, and can better guide the beard.

[0031] Although the present invention has been disclosed above with specific embodiments, it is not intended to limit the present invention. Any person skilled in the art may make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope of the appended claims.

Claims

1. A razor head, characterized in that: The assembly includes a cutter head cover (1), a generally U-shaped side fixed cutter (2) fixedly connected to the cutter head cover (1), a side movable cutter (3) elastically connected below the side fixed cutter and capable of reciprocating relative to the side fixed cutter, a movable cutter holder (4), a spring body (5), and an intermediate cutter assembly. The lower part of the movable cutter holder (4) is equipped with a drive unit (41) that is connected to the transmission mechanism. The movable cutter holder drives the side movable cutter and the intermediate movable cutter in the intermediate cutter assembly to achieve lateral reciprocating motion. The side fixed cutter (2) includes a U-shaped cutter holder body (21) and a spring body (5). The U-shaped tool holder body (21) has side eaves (22) extending outward from its two upper edges. The side eaves (22) are provided with side fixed blade teeth distributed along the length direction. The side moving blade (3) includes a tool holder base (31) that is generally U-shaped and adapted to the tool holder body (21), and moving blade eaves (32) extending outward from the two upper edges of the U-shaped tool holder base. The moving blade eaves (32) are provided with side cutting teeth (33) distributed along the length direction. The side cutting teeth (33) are located below the side fixed blade teeth. The tool holder base (31) is not exposed. A central through hole (31a) is opened at the center of the bottom surface for the drive unit (41) to pass through. Several spring-body connecting terminals (31c) are symmetrically arranged on the two side walls of the tool holder base. The upper end of the spring is connected to the spring-body connecting end, and the lower end is connected to the side fixed blade (2) or fixed accessory that is fixed relative to the position of the tool head cover (1). The side moving blade (3) is elastically suspended and supported below the side fixed blade by the spring. The tool holder base (31) has two upward-extending folds. The ear piece (31b) and the drive unit (41) have positioning grooves (42) on their left and right outer side walls for the two upper folding ear pieces (31b) of the side moving knife (3) to be inserted from bottom to top. Through the cooperation of the two upper folding ear pieces (31b) and the positioning grooves (42), the side moving knife (3), which is elastically suspended and supported below the side fixed knife, is connected to the moving knife holder (4). Under the drive of the moving knife holder (4), the side cutting teeth (33) of the side moving knife (3) elastically and tightly adhere to the lower surface of the side fixed knife (2) side knife fixed knife teeth to achieve cutting.

2. The razor head according to claim 1, characterized in that: The free end of the side blade fixed tooth facing outward is an arc end, and the arc end protrudes upward in an arc at the free end of the side blade fixed tooth.

3. The razor head according to claim 1, characterized in that: The free end of the side blade fixed tooth facing outward is an arc end, and the arc end protrudes in a spherical shape at the free end of the side blade fixed tooth.

4. The razor head according to claim 1, characterized in that: The free end of the side blade fixed tooth facing outward is an arc end, and the width at the connection between the side blade fixed tooth and the arc end is smaller than the width of the arc end.

5. The razor head according to claim 1, 2, 3, or 4, characterized in that: The fixing accessory is a magnetic attachment (6) that is fixedly connected to the blade cover (1) below the side moving blade (3). The magnetic attachment and the machine body magnetically attach to form a detachable connection between the blade and the machine body.

6. The razor head according to claim 5, characterized in that: The fixing accessory is also provided with several support arms (61) that extend outward from the fixing accessory body and can abut against the inner wall of the cutter head housing.

7. The razor head according to claim 1, 2, 3, or 4, characterized in that: The intermediate moving knife in the intermediate knife assembly is connected above the moving knife holder (4) inside the U-shaped knife holder body (21). The intermediate knife assembly includes an intermediate stationary knife and an intermediate stationary knife holder for fixing the intermediate stationary knife. The intermediate stationary knife is fixed above the intermediate moving knife inside the U-shaped knife holder body (21) by the insertion and cooperation of the stationary knife holder and the knife holder body.

8. The razor head according to claim 1, 2, 3, or 4, characterized in that: The intermediate moving blade in the intermediate blade assembly is connected to the moving blade holder (4) above the U-shaped blade holder body (21). The intermediate blade assembly includes an intermediate mesh cover, which is fixedly installed above the intermediate moving blade by a blade head cover (1).

9. The razor head according to claim 5, characterized in that: The intermediate moving knife in the intermediate knife assembly is connected above the moving knife holder (4) inside the U-shaped knife holder body (21). The intermediate knife assembly includes an intermediate stationary knife and an intermediate stationary knife holder for fixing the intermediate stationary knife. The intermediate stationary knife is fixed above the intermediate moving knife inside the U-shaped knife holder body (21) by the insertion and cooperation of the stationary knife holder and the knife holder body.

10. The razor head according to claim 5, characterized in that: The intermediate moving blade in the intermediate blade assembly is connected to the moving blade holder (4) above the U-shaped blade holder body (21). The intermediate blade assembly includes an intermediate mesh cover, which is fixedly installed above the intermediate moving blade by a blade head cover (1).

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