Shaver head using through-type fixing structure

Abstract

A shaver head using a through-type fixing structure, the shaver head comprising a bottom shell (1), a stationary blade (2) and a movable blade (3), wherein a movable cutter holder (4) is provided inside the bottom shell (1); a fixed pressing plate (9) is provided above the stationary blade (2); limiting columns (10), which penetrate the stationary blade (2) and the movable blade (3) and extend towards the bottom shell, are arranged on two ends of the bottom surface of the fixed pressing plate (9); through holes (11) for allowing the limiting columns to pass therethrough are formed in the stationary blade (2); limiting bayonets (12), which are configured to allow the limiting columns (10) to be clamped therein so as to provide a reciprocating motion space for the movable blade, are provided on two ends of the movable blade (3); and a plurality of protective teeth (7) with the tail ends exceeding the outer edge of the movable blade (3) are provided on two sides of the bottom shell (1) and below the movable blade (3). By means of the through-type fixing structure, the shaver head is convenient to assemble or disassemble, thus the movable blade can be easily replaced. In addition, by means of the shaver head structure, movable cutter teeth are completely hidden between stationary cutter teeth and the protective teeth, thus the safety of the shaver head can be effectively improved.

Description

A shaving head with a through-type fixed structure Technical Field

[0001] The present invention relates to the technical field of shavers, and in particular to a shaver head with a through-type fixing structure. Background Art

[0002] The existing reciprocating razor head structure is composed of a stationary blade, a movable blade, a fixing frame and a bottom shell. The fixed assembly structure is mostly fixed by means of internal locks, snaps combined with screws, screw holes and welding. The assembly structure is complicated and the assembly process is tedious and troublesome. It is difficult to disassemble and replace parts. When the shaver head is used for too long, the movable blade is no longer sharp and the shaving effect becomes poor, the entire razor head can only be scrapped and replaced as a whole, which easily leads to waste of resources.

[0003] Moreover, the existing reciprocating razor head structure is that the stationary blade is outside and the movable blade is inside. One side of the movable blade's teeth is in contact with the stationary blade, and the other side is often exposed. When the shaver is used and held in the normal direction, the stationary blade in the shaver head is in contact with the skin, and there is no need to worry about the movable blade's teeth scratching the skin. However, when shaving, since it is inconvenient to maintain the holding direction of the shaver at some shaved areas, the side of the movable blade's teeth exposed outside is very likely to accidentally scratch the skin.

[0004] In order to solve the above-mentioned defects, the present invention provides a shaving head with a through-type fixing structure. Technical Solutions

[0005] In order to facilitate the assembly or disassembly of the shaving head, facilitate the replacement of the movable blade, and improve the safety of the shaving head, the present invention provides a shaving head with a through-type fixing structure.

[0006] In order to solve the above problems, the present invention provides the following technical solutions:

[0007] A shaving head adopting a through-type fixed structure is characterized in that: it includes a bottom shell, a static blade and a dynamic blade, a dynamic blade bracket for mounting the dynamic blade is provided which can move back and forth in the bottom shell, a fixed pressure plate is provided above the static blade, and limiting columns are provided at both ends of the bottom surface of the fixed pressure plate, which pass through the static blade and the dynamic blade and extend toward the bottom shell, a through hole is provided on the static blade for passing through the limiting column, and limiting sockets are provided at both ends of the dynamic blade for clamping the limiting column to provide reciprocating space for the dynamic blade, and a plurality of protective teeth with ends extending beyond the outer edge of the dynamic blade are provided on both sides of the bottom shell and below the dynamic blade.

[0008] The shaving head with a through-type fixed structure as described above is characterized in that a plurality of outwardly extending stationary blade teeth and movable blade teeth are respectively provided on both sides of the stationary blade and the movable blade, the top surface of the movable blade teeth is in contact with the bottom surface of the stationary blade teeth, and a gap is left between the protective teeth and the movable blade teeth.

[0009] The shaving head with a through-type fixed structure as described above is characterized in that the outer edge of the protective teeth extends outward beyond the outer edge of the movable blade teeth and does not extend beyond the outermost end of the stationary blade teeth, the number and arrangement of the protective teeth correspond to the stationary blade teeth, and a protective head with a smooth surface and bent toward the movable blade is provided at the end of the stationary blade teeth.

[0010] The shaving head adopting the through-type fixing structure as described above is characterized in that a screw hole is provided in the limiting column, and a screw is provided below the bottom shell and passes through the bottom shell and is screwed into the screw hole.

[0011] The shaving head adopting the through-type fixed structure as described above is characterized in that: positioning mounting posts extending toward the stationary blade are provided at both ends of the top surface of the movable blade support, positioning mounting holes for nesting the positioning mounting posts are provided on the movable blade, and limiting sliding grooves are provided on the stationary blade corresponding to the positioning mounting posts.

[0012] The shaving head with a through-type fixed structure as described above is characterized in that: a spring piece is provided in the bottom shell for pressing against the bottom surface of the movable knife bracket so that the movable knife teeth fit into the static knife teeth, and a reciprocating baffle is provided on the bottom surface of the movable knife bracket for cooperating with the shaver main body to drive the movable knife bracket to reciprocate.

[0013] The shaving head with a through-type fixed structure as described above is characterized in that end covers are provided at both ends of the bottom shell, a cleaning port connected to the inner cavity of the bottom shell is provided on the end cover, and a connecting frame for connecting to the shaver main unit is provided below the bottom shell.

[0014] The shaving head with a through-type fixing structure as described above is characterized in that both ends of the connecting frame are rotatably hinged on the outer wall of the end cover, and a torsion spring for resetting the tilt angle of the shaving head is provided on the outer wall of the end cover.

[0015] The shaving head with a through-type fixed structure as described above is characterized in that the fixed pressure plate and the limiting column are an integral part and are integrally formed by injection molding, and a surface cover for enhancing skin feel is attached to the upper surface of the fixed pressure plate.

[0016] The shaving head adopting the through-type fixing structure as described above is characterized in that the height from the upper surface of the static blade to the bottom surface of the bottom shell does not exceed 5 mm. Beneficial effects

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] The razor head of the present invention adopts a through-type fixed structure, which is provided with a fixed pressure plate and a limiting post that passes through the stationary blade and the movable blade and extends toward the bottom shell. At the same time, a through hole and a limiting slot for passing the limiting post are respectively provided on the stationary blade and the movable blade. When assembling the razor head, it is only necessary to stack the movable blade support, the movable blade, the stationary blade and the fixed pressure plate in sequence and install them on the inner part or the upper end of the bottom shell. At the same time, the limiting post is passed through the through hole and the limiting slot in sequence, and then screwed into the screw hole from the bottom end of the bottom shell with a screw. Similarly, when disassembling, it is only necessary to unscrew the screw. The assembling or disassembling of the razor head is very convenient. When the razor head is used for too long, the movable blade is no longer sharp and the shaving effect becomes poor, the movable blade can be replaced separately. The replacement process is very convenient and the entire blade head does not need to be scrapped, thereby extending the service life of the razor head and facilitating the recycling of the blade, saving production resources.

[0019] 2. The present invention adopts a shaving head with a through-type fixed structure, which is provided with protective teeth and the outer edges of the protective teeth extend outwardly beyond the outer edges of the moving knife teeth. The moving knife teeth are completely hidden between the stationary knife teeth and the protective teeth, so that the moving knife teeth are protected in both the upper and lower directions. When using the shaver to shave, no matter whether you hold it forward or reverse, you don't have to worry about the moving blade teeth scratching the skin, which greatly improves the safety of the shaving head when in use. At the same time, a gap is left between the protective teeth and the moving knife teeth, which can prevent affecting the shearing effect of the shaving head and prevent hair from being pinched, thereby improving the shaving experience. The number and arrangement of the protective teeth correspond to the stationary knife teeth, and the protective teeth correspond to the stationary knife teeth one by one up and down, which can effectively guide the hair into the space between the stationary knife teeth for shearing, so as to improve the shaving efficiency. Moreover, the corresponding arrangement of the protective teeth and the stationary knife teeth makes the appearance of the shaving head more exquisite.

[0020] 3. The present invention adopts a shaving head with a through-type fixed structure, and a protective head is provided at the end of the static blade teeth. The surface of the protective head is smooth and bent toward the direction of the dynamic blade, which can make the shaving head move more smoothly on the skin, enhance the skin-fitting feel of the shaving head, and prevent the static blade teeth from scratching the skin, thereby improving the user experience of the shaving head.

[0021] 4. The present invention adopts a shaving head with a through-type fixed structure and a spring structure instead of a common spring structure to make the movable blade teeth fit the stationary blade teeth, which can make the overall thickness of the shaving head thinner. At the same time, since the shaving head adopts a through-type fixed structure, the bottom shell and the movable blade support inside it can be made smaller, which can reduce the overall thickness of the shaving head, so that the total thickness of the shaving head does not exceed 5 mm, thereby making the appearance of the shaving head more exquisite. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] FIG1 is a perspective view of the shaving head;

[0023] FIG2 is a bottom view of the shaving head;

[0024] FIG3 is an enlarged view of area D in FIG2 ;

[0025] FIG4 is a first exploded view of the shaving head;

[0026] FIG5 is a second exploded view of the shaving head;

[0027] FIG6 is a third exploded view of the shaving head;

[0028] FIG7 is a fourth exploded view of the shaving head;

[0029] FIG8 is a schematic diagram of another embodiment of a connecting frame;

[0030] In the figure: 1 is the bottom shell; 2 is the static blade; 3 is the dynamic blade; 4 is the dynamic blade bracket; 5 is the static blade teeth; 6 is the dynamic blade teeth; 7 is the protective teeth; 8 is the protective head; 9 is the fixed pressure plate; 10 is the limiting column; 11 is the through hole; 12 is the limiting bayonet; 13 is the screw hole; 14 is the screw; 15 is the spring; 16 is the positioning mounting column; 17 is the positioning mounting hole; 18 is the limiting slide; 19 is the reciprocating baffle; 20 is the connecting frame; 21 is the end cover; 22 is the cleaning port; 23 is the torsion spring; 24 is the surface cover. Modes for Carrying Out the Invention

[0031] The technical features of the present invention are further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can understand. The directions such as up, down, left and right described in the text are consistent with the directions shown in the accompanying drawings of the specification.

[0032] A shaving head adopting a through-type fixed structure, as shown in Figures 1 to 8, includes a bottom shell 1, a stationary blade 2 and a movable blade 3, a movable blade bracket 4 for mounting the movable blade 3 is provided in the bottom shell 1 and can move back and forth, a fixed pressure plate 9 is provided above the stationary blade 2, and limiting columns 10 are provided at both ends of the bottom surface of the fixed pressure plate 9 and extend toward the bottom shell 1 through the stationary blade 2 and the movable blade 3, and a through hole 11 is provided on the stationary blade 2 for passing through the limiting column 10. Both ends of the movable blade 3 are provided with limit bayonets 12 for snapping into the limit posts 10 to provide a reciprocating space for the movable blade 3. The limit bayonets 12 can cooperate with the limit posts 10 to prevent the movable blade 3 from deflecting or swinging without affecting the reciprocating motion of the movable blade 3. When assembling the shaving head, it is only necessary to stack the movable blade support 4, the movable blade 3, the stationary blade 2 and the fixed pressure plate 9 in sequence and install them inside or on the upper end of the bottom shell 1, and then fix them by screws or buckles. The fixed pressure plate 9 is connected and fixed to the bottom shell 1 in this way. The assembly or disassembly of the shaver head is very convenient. When the shaver head is used for a long time, the movable blade is no longer sharp and the shaving effect becomes poor, the movable blade 3 can be replaced separately. The replacement process is very convenient and the entire shaver head does not need to be scrapped, thereby extending the service life of the shaver head, facilitating the recycling of the blade and saving production resources. A plurality of protective teeth 7 with ends extending beyond the outer edge of the movable blade 3 are provided on both sides of the bottom shell 1 and below the movable blade 3. The shape of the ends of the protective teeth 7 is generally designed to be a smooth curved surface or a cut surface without sharp edges to prevent stinging the skin during shaving and affecting the user experience. The movable blade teeth 6 are completely hidden between the static blade teeth 5 and the protective teeth 7, so that the movable blade teeth 6 are protected in both the upper and lower directions. When using the shaver to shave, whether holding it forward or reverse, there is no need to worry about the movable blade teeth 6 scratching the skin, thereby greatly improving the safety of the shaver head when in use.

[0033] Specifically, a plurality of outwardly extending stationary blade teeth 5 and movable blade teeth 6 are respectively provided on both sides of the stationary blade 2 and the movable blade 3. The top surface of the movable blade teeth 6 is in contact with the bottom surface of the stationary blade teeth 5. A gap is left between the protective teeth 7 and the movable blade teeth 6, which can prevent the shearing effect of the shaving head from being affected and can prevent hair from being clamped, thereby improving the experience when shaving.

[0034] In addition, the outer edge of the protective teeth 7 extends outward beyond the outer edge of the movable knife teeth 6 and does not exceed the outermost end of the stationary knife teeth 5. If the protective teeth 7 are too short, they cannot completely cover the movable knife teeth 6, and the protective effect is poor. If the protective teeth 7 are too long, it will affect the contact of the stationary knife teeth 5 with the skin, which may easily lead to unclean shaving of the hair and affect the shaving effect. The number and arrangement of the protective teeth 7 correspond to the stationary knife teeth 5, and the protective teeth 7 correspond to the stationary knife teeth 5 one by one up and down, which can effectively guide the hair into the The gaps between the static blade teeth 5 facilitate the shearing of the dynamic blade teeth 6 to improve shaving efficiency, and the protective teeth 7 are arranged corresponding to the static blade teeth 5, making the appearance of the shaving head more exquisite. A protective head 8 with a smooth surface and bent toward the dynamic blade 3 is provided at the end of the static blade teeth 5. The protective head 8 can make the shaving head move more smoothly on the skin, enhance the skin-fitting feel of the shaving head, and prevent the static blade teeth 5 from scratching the skin during shaving, thereby improving the user experience of the shaving head.

[0035] Moreover, the static blade 2 and the dynamic blade 3 in the shaving head structure can be processed and produced by a stamping process. Compared with the etching process, the stamping process has higher production efficiency. At the same time, a U-shaped groove is stamped in the middle of the static blade 2 and the dynamic blade 3. Compared with a flat-plate-shaped blade, the blade with a U-shaped groove has higher strength and is not easy to deform during processing and transportation. It is easier to keep the teeth at a high flatness, thereby indirectly improving the shear sharpness of the shaving head and facilitating the fitting installation of the static blade 2 and the dynamic blade 3.

[0036] Specifically, a screw hole 13 is provided in the limiting column 10, and a screw 14 is provided below the bottom shell 1 and is screwed into the screw hole 13 through the bottom shell 1. When assembling the shaving head, it is only necessary to stack the movable blade support 4, the movable blade 3, the static blade 2 and the fixed pressure plate 9 in sequence and install them inside or on the upper end of the bottom shell 1, and at the same time make the limiting column 10 pass through the through hole 11 and the limiting bayonet 12 in sequence, and then use the screw 14 to screw into the screw hole 13 from the bottom end of the bottom shell 1 to complete the assembly. When assembling, you only need to unscrew the screws 14, and the assembly and disassembly processes are simple and quick. The shaving head can also be assembled and fixed to the fixed pressure plate 9 and the bottom shell 1 by snapping. It is only necessary to provide a snap spring piece at the bottom end of the limiting column 10, and provide a card hole corresponding to the snap spring piece on the bottom shell 1, so that the snap spring piece directly passes through the card hole and buckles the bottom surface of the bottom shell 1 to complete the assembly and fixation of the shaving head. When disassembling, you only need to push the snap spring piece out of the card hole. The assembly and disassembly processes are also very convenient.

[0037] In addition, positioning mounting posts 16 extending toward the static blade 2 are provided at both ends of the top surface of the movable blade support 4, positioning mounting holes 17 for nesting the positioning mounting posts 16 are provided on the movable blade 3, and limiting slide grooves 18 are provided on the static blade 2 corresponding to the positioning mounting posts 16. The limiting slide grooves 18 are waist-shaped holes, which can further limit the installation positions of the movable blade 3 and the movable blade support 4 without affecting the reciprocating motion of the movable blade 3, thereby preventing the movable blade 3 and the movable blade support 4 from offsetting or swinging when performing reciprocating motion.

[0038] Specifically, a spring piece 15 is provided in the bottom shell 1 for supporting the bottom surface of the movable knife bracket 4 so that the movable knife teeth 6 fit into the static knife teeth 5. The use of the spring piece 15 to replace the spring in the conventional cutter head structure can make the overall thickness of the shaving head thinner. A reciprocating baffle 19 is provided on the bottom surface of the movable knife bracket 4. The reciprocating baffle 19 is used to cooperate with the eccentric shaft on the shaver main body to drive the movable knife bracket 4 and the movable blade 3 to reciprocate. The reciprocating baffle 19 and the movable knife bracket 4 can be two separate parts, which are assembled and fixed by screws or snaps, or they can be an integral part, which is integrally formed by injection molding.

[0039] In addition, end covers 21 are provided at both ends of the bottom shell 1, and a cleaning port 22 communicating with the inner cavity of the bottom shell 1 is provided on the end cover 21. A connecting frame 20 for connecting to the shaver main unit is provided below the bottom shell 1. After shaving is completed, the shaver head can be placed in water for cleaning, and hair debris inside the shaver head can be easily washed out from the cleaning port 22; the connecting frame 20 can be set as a separate part rotatably connected to the bottom shell 1, and then the shaver head is installed on the shaver main unit through the connecting frame 20, as shown in Figure 4 or Figure 6, the connecting frame 20 can also be set as an integral part with the bottom shell 1, and directly rotatably connected to the shell of the shaver main unit, as shown in Figure 8.

[0040] In addition, both ends of the connecting frame 20 are rotatably hinged on the outer wall of the end cover 21, and a torsion spring 23 for resetting the tilt angle of the shaving head is provided on the outer wall of the end cover 21. The shaving head can be rotatably connected to the shaver main unit through the connecting frame 20 to realize the function of adjusting the shaving angle of the shaving head in multiple directions.

[0041] Specifically, the fixed pressure plate 9 and the limiting column 10 are an integral part and are integrally formed by injection molding, which is convenient for production and assembly; in addition, a face cover 24 for enhancing skin feel is attached to the upper surface of the fixed pressure plate 9. The material of the face cover 24 is generally soft silicone. During the shaving process, the face cover 24 is easy to contact the skin. The soft face cover 24 can enhance the skin-fitting feel and usage experience of the shaving head, and at the same time can make the appearance of the shaving head more exquisite.

[0042] Specifically, the height from the upper surface of the static blade 2 to the bottom surface of the bottom shell 1 does not exceed 5 mm, that is, the total thickness of the shaving head does not exceed 5 mm, making the appearance of the shaving head more exquisite.

[0043] The embodiments described in the present invention are merely descriptions of preferred implementations of the present invention and are not limited to the precise structures described above and shown in the accompanying drawings. Various modifications and changes can be made without departing from the scope thereof. Without departing from the design concept of the present invention, various variations and improvements made to the technical solutions of the present invention by engineers and technicians in this field should fall within the scope of protection of the present invention.

Claims

1. A shaving cutter head adopting a through-type fixing structure, characterized in that: It includes a bottom shell (1), a stationary blade (2) and a moving blade (3). Inside the bottom shell (1), a moving blade bracket (4) for installing the moving blade (3) is provided and can reciprocate. Above the stationary blade (2), a fixed pressing plate (9) is provided. At both ends of the bottom surface of the fixed pressing plate (9), limit posts (10) are provided which penetrate through the stationary blade (2) and the moving blade (3) and extend towards the bottom shell (1). Through holes (11) for passing through the limit posts (10) are provided on the stationary blade (2). At both ends of the moving blade (3), limit notches (12) for snapping into the limit posts (10) to provide a reciprocating movement space for the moving blade (3) are provided. On both sides of the bottom shell (1) and below the moving blade (3), a number of protection teeth (7) with ends exceeding the outer edge of the moving blade (3) are provided.

2. The shaving cutter head adopting a through-type fixing structure according to claim 1, characterized in that: On both sides of the stationary blade (2) and the moving blade (3), a number of stationary knife teeth (5) and moving knife teeth (6) extending outwards are respectively provided. The top surface of the moving knife teeth (6) is in contact with the bottom surface of the stationary knife teeth (5). A gap is left between the protection teeth (7) and the moving knife teeth (6).

3. The shaving cutter head adopting a through-type fixing structure according to claim 2, wherein: The outer edge of the protection teeth (7) extends outwards beyond the outer edge of the moving knife teeth (6) and does not exceed the outermost end of the stationary knife teeth (5). The number and arrangement of the protection teeth (7) correspond to those of the stationary knife teeth (5). At the end of the stationary knife teeth (5), a protection head (8) with a smooth surface and bent towards the moving blade (3) is provided.

4. The shaver head with a through-type fixing structure according to claim 1, characterized in that: A screw hole (13) is provided inside the limit post (10). Below the bottom shell (1), a screw (14) is provided which penetrates through the bottom shell (1) and is screwed into the screw hole (13).

5. The shaving cutter head adopting a through-type fixing structure according to claim 1, characterized in that: At both ends of the top surface of the moving blade bracket (4), positioning and mounting posts (16) extending towards the stationary blade (2) are provided. Corresponding positioning and mounting holes (17) for nesting the positioning and mounting posts (16) are provided on the moving blade (3). Limit sliding grooves (18) corresponding to the positioning and mounting posts (16) are provided on the stationary blade (2).

6. The shaving cutter head adopting a through-type fixing structure according to claim 2, wherein: Inside the bottom shell (1), a spring piece (15) for pressing against the bottom surface of the moving blade bracket (4) to make the moving knife teeth (6) contact the stationary knife teeth (5) is provided. On the bottom surface of the moving blade bracket (4), a reciprocating baffle (19) for cooperating with the main body of the shaver to drive the moving blade bracket (4) to perform reciprocating motion is provided.

7. The shaving cutter head adopting a through-type fixing structure according to any one of claims 1 to 6, characterized in that: End caps (21) are provided at both ends of the bottom shell (1). A cleaning port (22) communicating with the inner cavity of the bottom shell (1) is provided on the end caps (21). Below the bottom shell (1), a connecting frame (20) for connecting to the main body of the shaver is provided.

8. The shaving cutter head adopting a through-type fixing structure according to claim 7, characterized in that: Both ends of the connecting frame (20) are rotatably hinged to the outer wall of the end cap (21). A torsion spring (23) for resetting the tilting angle of the shaver head is provided on the outer wall of the end cap (21).

9. The shaving cutter head adopting a through-type fixing structure according to claim 1, wherein: The fixed pressing plate (9) and the limit posts (10) are an integral part and are integrally formed by injection molding. A face cover (24) for enhancing the skin feel is attached to the upper surface of the fixed pressing plate (9).

10. The hair removal cutter head adopting a through-type fixing structure according to claim 1, characterized in that: The height from the upper surface of the stationary blade (2) to the bottom surface of the bottom case (1) does not exceed 5 mm.

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