CN214055366U

CN214055366U - Tool bit subassembly of razor

Info

Publication number: CN214055366U
Application number: CN202023027567.8U
Authority: CN
Inventors: 王勋
Original assignee: Ningbo Nanke Electromechanical Technology Co ltd
Current assignee: Ningbo Nanke Electromechanical Technology Co ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-08-27
Anticipated expiration: 2030-12-14

Abstract

The utility model discloses a tool bit subassembly of razor, including circular shape stationary knife (1) and circular shape move sword (2), move sword (2) including moving sword body (21) and setting a plurality of sword foot (22) that have cutting edge (22b) on moving sword body (21), sword foot (22) are including a plurality of interior sword foot (221) and a plurality of outer sword foot (222), and all interior sword feet (221) are close to the middle part and the interval arrangement who moves sword body (21), and all outer sword feet (222) are kept away from the middle part and the interval arrangement who moves sword body (21). By arranging the plurality of inner cutter legs and the plurality of outer cutter legs which are mutually independent, the acting force is dispersed to the inner cutter legs and the outer cutter legs during shaving, and the phenomena of beard pulling and unclean shaving are not easy to occur; during production and manufacturing, the concentricity of the cutting edges of all the inner cutter legs and all the outer cutter legs is easy to control respectively, and the user experience feeling is better.

Description

Tool bit subassembly of razor

Technical Field

The utility model relates to a razor technical field, concretely relates to tool bit subassembly of razor.

Background

The shaver generally comprises a fixed blade and a movable blade, wherein the movable blade rotates to enable a blade edge on the movable blade to be matched with the fixed blade and cut beard.

For example, chinese utility model patent application No. CN201922246910.9 (No. CN211362347U) discloses "a razor moving blade and a razor head", the razor moving blade and the razor head include a blade base body, the blade base body extends outward to have a first blade foot, the first blade foot includes a first support arm connected with the blade base body, a second support arm turned upward along the outer end of the first support arm, and a third support arm turned inward along any one side of the second support arm, the third support arm is provided with an inner ring blade located inside and a first outer ring blade located outside. Through the design, the inner ring cutting edge and the first outer ring cutting edge can be positioned above the blade base body, so that the blade base body has a larger area, and can be directly connected with other parts without a supporting plate, the production process is simplified, and the production cost is reduced; the inner ring cutting edge and the outer ring cutting edge can be arranged on the cutter foot while more cutter feet can be accommodated, so that the shaving range and efficiency are improved; and the blade base body has larger area and the blade foot has better supporting force, the integral strength of the movable blade is ensured, and the service life is prolonged.

However, the above patent has the following problems: firstly, because the same third supporting arm is provided with the inner ring blade and the outer ring blade, the third supporting arm is easy to deform under the combined action of the inner ring blade and the outer ring blade in the shaving process, and when one of the inner ring blade and the outer ring blade on the same third supporting arm deviates, the other one is easy to influence, so that the problems of beard pulling and unclean shaving can occur; and secondly, the same third supporting arm is provided with an inner ring cutting edge and an outer ring cutting edge, so that the size of the third supporting arm is relatively large, the concentricity of all the inner ring cutting edges and the concentricity of all the outer ring cutting edges are not easy to control in the production and manufacturing process, and the shaver is easy to shake in the use process, so that the user experience is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to prior art's current situation, provide a be difficult to draw the tool bit subassembly of the razor that must and be difficult to the shake.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a tool bit subassembly of razor, includes that circular shape stationary knife and circular shape move the sword, the stationary knife has the chamber that holds of under shed, move the sword setting and should hold the intracavity and can use the axis of moving sword self to move relatively the stationary knife and be central circumferential direction, should move the sword including moving the sword body and setting up a plurality of sword feet that have the cutting edge on moving the sword body, move the sword and rotate and make cutting edge and stationary knife cooperation and cut beard, its characterized in that:

the knife legs comprise a plurality of inner knife legs and a plurality of outer knife legs, all the inner knife legs are close to the middle of the movable knife body and are arranged at intervals, all the outer knife legs are far away from the middle of the movable knife body and are arranged at intervals, and the knife edges are arranged at the tail ends of the knife legs.

The outer cutter leg or/and the inner cutter leg can have different structures, and preferably, the outer cutter leg and the inner cutter leg respectively extend upwards and vertically from the edge of the automatic cutter body, then extend outwards and incline upwards towards the tangential direction of the outer edge of the automatic cutter body.

In order to ensure that the concentricity of all the inner cutter legs is better, the distance between each inner cutter leg and the axis of the movable cutter body is equal, and all the inner cutter legs are uniformly distributed at intervals along the circumferential direction of the axis. The distance between each interior sword foot and the axis that moves sword body self center place equals, and the concentricity of all interior sword feet is better like this, and all interior sword feet are along the even interval distribution of circumference, and cutting strength is more even like this.

In order to reduce the residue of beard, the distance between each outer cutter foot and the axis of the movable cutter body is equal, all the outer cutter feet are divided into a plurality of units arranged at intervals along the axis in the circumferential direction, and each unit comprises a plurality of outer cutter feet. Thus, the plurality of outer cutter legs in each unit are gathered together, which can provide denser cutting and is beneficial to reducing the residue of beard.

For more uniform shaving action, each inner blade is located between two adjacent units and close to the axis. Therefore, the inner cutter leg and the outer cutter leg are distributed more uniformly, and the overall shaving effect of the shaver is more uniform.

In order to facilitate cutting of hairs, all the blade legs comprise a cutting edge having a cutting face which is inclined in a direction opposite to the direction of rotation of the blade legs. Thus, the blade is sharp, which is beneficial to cutting beard.

In order to increase the area for cutting beard, the cutting surface is U-shaped, and the blade is arranged on the U-shaped cutting surface. The end of the blade leg is provided with a square groove, so that the end of the blade leg is formed with a blade edge with a U-shaped cutting surface.

In order to install the fixed cutter, the fixed cutter further comprises an installation seat, the outer wall of the installation seat is provided with an accommodating groove, the middle part of the movable cutter body is provided with a first through hole extending up and down, the installation seat vertically penetrates through the first through hole in a connected state of the installation seat and the movable cutter body, and a first edge of a hole wall close to the first through hole is circumferentially limited in the accommodating groove;

the fixed knife is provided with a positioning column which extends downwards and is positioned in the accommodating cavity, the positioning column is accommodated in a top limiting hole of the mounting seat, and the mounting seat can drive the movable knife body to rotate relative to the fixed knife by taking the positioning column as a rotating shaft. The fixed cutter is installed through the cooperation of the first through hole and the installation seat.

In order to support the moving knife, the movable knife comprises a movable knife bottom plate positioned below the movable knife body, a second through hole extending up and down is formed in the middle of the movable knife bottom plate, the mounting seat penetrates through the first through hole up and down in the state that the mounting seat is connected with the movable knife body, a second edge of the hole wall close to the second through hole is limited in the containing groove in the circumferential direction, and the movable knife bottom plate is close to the movable knife body. Through setting up the sword bottom plate, move the sword like this and be difficult to rock from top to bottom and rotate more steadily at the rotation in-process, user experience feels better.

Compared with the prior art, the utility model has the advantages that: by arranging the plurality of inner cutter legs and the plurality of outer cutter legs which are independent from each other, the acting force is dispersed to the inner cutter legs and the outer cutter legs during shaving, so that the acting force on each cutter leg is smaller, rather than the acting force concentrated on one cutter leg as in the prior art, the inner cutter legs and the outer cutter legs are not easy to deform, even if one of the inner cutter legs and the outer cutter legs deviates due to deformation, the other one of the inner cutter legs and the outer cutter legs is not easy to influence, and the phenomena of beard pulling and unclean shaving are not easy to occur;

and because interior sword foot and outer sword foot independent setting, the size of each sword foot is less relatively, during the manufacturing, easily controls the concentricity of the cutting edge of all interior sword feet and all outer sword feet respectively, and the razor is difficult to shake like this in the use for user experience feels better.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a schematic view from another angle of FIG. 1;

FIG. 3 is a longitudinal cross-sectional view of FIG. 1;

FIG. 4 is another longitudinal cross-sectional view of FIG. 1;

FIG. 5 is a schematic perspective view of the movable blade according to the embodiment of the present invention;

fig. 6 is an exploded view of an embodiment of the present invention;

FIG. 7 is a schematic view from another angle of FIG. 6;

FIG. 8 is a perspective view of FIG. 1 with the stationary knife removed;

fig. 9 is a perspective view of fig. 2 with the stationary knife removed.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

Fig. 1 to 9 show a preferred embodiment of a head assembly of a shaver according to the present invention.

The cutter head component of the shaver comprises a fixed cutter 1, a movable cutter 2, a movable cutter bottom plate 4 and a mounting seat 3.

Wherein, the stationary knife 1 is circular, and the stationary knife 1 has downwardly opening and holds the chamber and be located and hold the reference column 11 that the intracavity downwardly extending, and this reference column 11 holds in the spacing hole 32 in top of mount pad 3, and makes mount pad 3 can use reference column 11 to drive moving sword 2 and rotate relative stationary knife 1 as the pivot. The structure of the stationary knife 1 can adopt the prior art.

The movable knife 2 is circular, the whole movable knife 2 is of a central symmetrical structure, the movable knife 2 is arranged in the accommodating cavity and can rotate circumferentially around the axis of the movable knife 2 relative to the fixed knife 1 (the arrow of fig. 2 indicates the rotating direction of the movable knife 2 and the movable knife bottom plate 4), the movable knife 2 comprises a movable knife body 21 and 16 knife legs 22 with knife edges 22b, the knife legs are arranged on the movable knife body 21, the movable knife body 21 is of a flat sheet shape, the movable knife 2 rotates to enable the knife edges 22b to be matched with the fixed knife 1 and cut beards, and the matching structure of the knife edges 22b and the fixed knife 1 is the prior art and is not specifically unfolded. The movable blade body 21 has a first through hole 211 located in the middle and extending up and down for positioning. The cutting edge 22b has a cutting surface 22a at the distal end of each leg 22, and the cutting surface 22a is inclined in the direction opposite to the rotation direction of the leg 22. Preferably, referring to fig. 5, the distal end of the blade leg 22 has a square-shaped groove 223 such that the distal end of the blade leg 22 is formed with a blade edge 22b having a U-shaped cutting face 22 a.

The 16 blades 22 include 4 inner blades 221 and 12 outer blades 222. The plurality of inner cutter legs 221 and the plurality of outer cutter legs 222 are formed by stamping the movable cutter body 21 and are all folded towards the same side, and after the edges of the movable cutter body 21 are vertically extended upwards, the outer cutter legs 222 and the inner cutter legs 221 are extended outwards and are inclined upwards towards the tangent direction of the outer edge of the movable cutter body 21, so that the material is saved, the production is facilitated, and meanwhile, the strength is higher because the cutter legs 22 and the movable cutter body 21 are integrated. The 12 outer blades 222 are divided into 4 units 22c arranged at intervals in the circumferential direction along the axis, and each unit 22c includes 3 outer blades 222. All the outer cutter legs 222 are far away from the middle part of the movable cutter body 21 and are arranged at intervals, and preferably, the distance between each outer cutter leg 222 and the axis of the movable cutter body 21 is equal, so that the beard is cut uniformly. All the inner cutter legs 221 are close to the middle of the movable cutter body 21 and are arranged at intervals, preferably, the distance between each inner cutter leg 221 and the axis of the movable cutter body 21 is equal, and all the inner cutter legs 221 are uniformly distributed at intervals along the circumferential direction of the axis. Each inner blade leg 221 is located between two adjacent units 22c and closer to the axis of the movable blade body 21 itself than the outer blade leg 222.

The outer wall of mount pad 3 has holding tank 31, and under the state that mount pad 3 links to each other with moving blade body 21, mount pad 3 passes first through-hole 211 of moving blade body 21 from top to bottom to the first edge 212 of the pore wall that is close to first through-hole 11 is by the circumference spacing in holding tank 31.

The movable blade base plate 4 is located below the movable blade body 21, the movable blade base plate 4 is provided with a second through hole 41 located in the middle and extending up and down and a plurality of beard falling holes 43 located outside the second through hole 41, the mounting base 3 penetrates through the first through hole 11 up and down in a state that the mounting base 3 is connected with the movable blade body 21, a second edge 42 of a hole wall close to the second through hole 41 is limited in the accommodating groove 31 in the circumferential direction, and the movable blade base plate 4 is close to the movable blade body 21 up and down.

The working principle and the use process of the head assembly of the shaver of the present embodiment are as follows.

During production, the first positioning hole 23 of the movable blade 2 and the movable blade base plate 4 are aligned through the second positioning hole 44 on the mold, and then the mounting base 3 is formed through injection molding, so that the connection among the mounting base 3, the movable blade 2 and the movable blade base plate 4 is completed simultaneously.

After the shaver is aligned with the beard, the beard extends into the fixed cutter 1, after a power supply is started, the mounting base 3 rotates by taking the positioning column 11 of the fixed cutter 1 as a rotating shaft, and drives the movable cutter base plate 4, the inner cutter foot 221 and the outer cutter foot 222 to rotate, so that the inner cutter foot 221 and the outer cutter foot 222 are respectively matched with the fixed cutter 1 to shave, and acting force is respectively dispersed onto the inner cutter foot 221 and the outer cutter foot 222 during shaving, so that the inner cutter foot 221 and the outer cutter foot 222 are not easy to deform, even if one of the inner cutter foot 221 and the outer cutter foot 222 deviates due to deformation, the other one is not easy to influence, the phenomenon of beard pulling is not easy to occur, and shaving is cleaner;

because the inner cutter leg 221 and the outer cutter leg 222 are independently arranged, the size of each cutter leg 22 is relatively small, and the concentricity of the cutting edges 22b of all the inner cutter legs 221 and all the outer cutter legs 222 is easily controlled during production and manufacturing, so that the shaver is not easy to shake in the use process, and the user experience is good.

Claims

1. The utility model provides a tool bit subassembly of razor, includes circular shape stationary knife (1) and circular shape move sword (2), stationary knife (1) has the chamber that holds of opening downwards, move sword (2) and set up and should hold the intracavity and can use stationary knife (1) relatively to move the axis of sword (2) self as central circumferential direction, should move sword (2) including moving sword body (21) and setting up a plurality of sword foot (22) that have cutting edge (22b) moving on sword body (21), move sword (2) and rotate and make cutting edge (22b) and stationary knife (1) cooperation and cut the beard, its characterized in that:

the knife legs (22) comprise a plurality of inner knife legs (221) and a plurality of outer knife legs (222), all the inner knife legs (221) are close to the middle of the movable knife body (21) and are arranged at intervals, all the outer knife legs (222) are far away from the middle of the movable knife body (21) and are arranged at intervals, and the knife edges (22b) are arranged at the tail ends of the knife legs (22).

2. The shaving razor head assembly of claim 1, wherein: the outer cutter leg (222) and the inner cutter leg (221) are formed by vertically extending the edge of the automatic cutter body (21) upwards, then extending outwards and inclining upwards towards the tangential direction of the outer edge of the automatic cutter body (21).

3. The shaving razor head assembly of claim 1, wherein: the distances between the inner cutter legs (221) and the axis of the movable cutter body (21) are equal, and all the inner cutter legs (221) are uniformly distributed at intervals along the circumferential direction of the axis.

4. The shaving razor head assembly of claim 1, wherein: the distances between the outer cutter legs (222) and the axis of the movable cutter body (21) are equal, all the outer cutter legs (222) are divided into a plurality of units (22c) which are arranged at intervals in the circumferential direction along the axis, and each unit comprises a plurality of outer cutter legs (222).

5. The shaving razor head assembly of claim 4, wherein: each inner blade leg (221) is located between two adjacent cells (22c) and is close to the axis.

6. A shaving head assembly according to any one of claims 1 to 5, wherein: all the legs (22) include cutting edges (22b) having cutting surfaces (22a), and the cutting surfaces (22a) are inclined in a direction opposite to the direction of rotation of the legs (22).

7. The shaving razor head assembly of claim 6, wherein: the end of the blade leg (22) has a square groove (223) so that the end of the blade leg (22) is formed with a blade edge (22b) having a U-shaped cutting face (22 a).

8. A shaving head assembly according to any one of claims 1 to 5, wherein: the tool is characterized by further comprising an installation seat (3) with an accommodating groove (31) in the outer wall, a first through hole (211) extending up and down is formed in the middle of the movable blade body (21), the installation seat (3) penetrates through the first through hole (211) up and down in the state that the installation seat (3) is connected with the movable blade body (21), and a first edge (212) close to the hole wall of the first through hole (211) is circumferentially limited in the accommodating groove (31);

the fixed knife (1) is provided with a positioning column (11) which extends downwards and is positioned in the accommodating cavity, the positioning column (11) is accommodated in a top limiting hole (32) of the mounting seat (3), and the mounting seat (3) can drive the movable knife body (21) to rotate relative to the fixed knife (1) by taking the positioning column (11) as a rotating shaft.

9. The shaving razor head assembly of claim 8, wherein: still including being located moving blade bottom plate (4) of moving blade body (21) below, the middle part of this moving blade bottom plate (4) has second through-hole (41) that extend from top to bottom, and under mount pad (3) and the state that moves blade body (21) and link to each other, this first through-hole (211) are passed from top to bottom in mount pad (3), and second edge (42) of the pore wall that is close to second through-hole (41) are spacing in holding tank (31) by circumference to move blade bottom plate (4) and be close to moving blade body (21) from top to bottom.