CN213890099U

CN213890099U - Tool bit of pen-shaped eyebrow shaver

Info

Publication number: CN213890099U
Application number: CN202022181675.4U
Authority: CN
Inventors: 吴让攀
Original assignee: Zhongshan Xiaoshi Ceramic Blade Co ltd
Current assignee: Zhongshan Xiaoshi Ceramic Blade Co ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-08-06
Anticipated expiration: 2030-09-28

Abstract

The utility model discloses a knife head of a pen-shaped eyebrow knife, which comprises a columnar knife head body, wherein a blade is arranged on the knife head body, the knife head can form the eyebrow knife with a pen-shaped structure together with a handle, the blade is of a curved arc structure, and the cutting edge at the upper end of the knife head is correspondingly arc-shaped, so that on the premise of ensuring the safety, compared with the existing straight eyebrow knife blade, the knife blade can be very small and is not easy to be inserted into meat; on arranging the upper end of blade in tool bit body up end, the tool bit can be perpendicular to skin activity or with the certain angle activity of the direction slope of perpendicular to skin during the scraping hair, combine the blade to set up for the axis L slope of tool bit body, form the cutting angle of slope, guarantee the sharpness of cutting, holding pen-shaped eyebrow knife and operating like a pen and can effectively cutting off the eyebrow, the flexibility and the controllability of repairing the eyebrow have been improved, and the blade of arc structure then can control the plane of scraping to unsmooth position effectively, thereby can the accurate model of repairing the eyebrow.

Description

Tool bit of pen-shaped eyebrow shaver

[ technical field ] A method for producing a semiconductor device

The utility model relates to a tool bit of a pen-shaped eyebrow knife.

[ background of the invention ]

At present, two types of cutters for repairing eyebrows are generally used, one type is a rotary electric eyebrow shaver, and the other type is a hand-scraping eyebrow shaver.

The hand eyebrow razor, such as the taiwan patent of TWM528854U, is usually straight, and can only shave from above to below the eyebrows, and below the eyebrows are the eyelids, the skin surface is uneven, and cannot trim the eyebrows effectively, which is a safety problem, and the blade is wide and long, is not easy to shape, and it cannot be made very small, and is too small to insert into the flesh.

The rotary electric eyebrow-plucking knife is named as a technical scheme shown in a knife head device of the eyebrow plucking device according to the application number CN201821817498.0, wherein a first blade and a second blade are sleeved by a knife head cover with a smaller radius so as to be convenient for shaping, a plurality of straight groove-shaped knife seams are arranged on the knife head cover along the circumferential direction for eyebrow entering, and the first blade and the second blade are driven by a rotating shaft to rotate in the knife head cover to pluck the eyebrow. Due to the fact that the cutter head cover is arranged, the cutter head cover has a certain thickness, shaving is not clean, the hair shaving speed is too high, hands are not in the mind, when the position of the electric eyebrow trimming cutter is not aligned, eyebrow hairs at positions where the eyebrow trimming is not needed are easily shaved, and great care is needed during shaving.

Because the eyebrow has certain length and compliance, the tool bit cover all adopts the straight flute structure to advance the hair usually, and because the straight flute structure supplies skin extrusion to get into relatively easily, in order to guarantee the security, does not cut skin, and the width of straight flute structure need be done less, and the straight flute width is little then its entering hair mouth is tiny to cause into the hair difficulty, leads to the entering hair efficiency of current electronic eyebrow knife of rotation type utmost point poor.

Therefore, a safe and easy-to-use eyebrow razor capable of shaping and eyebrow trimming is urgently needed by the market and users.

The utility model discloses just make based on above-mentioned condition.

[ Utility model ] content

The utility model aims to solve the technical problem that a tool bit of a pen-shaped eyebrow knife is provided, this tool bit can constitute the eyebrow knife of stroke of a pen type with the handle together, have simple structure, can mould the type, the eyebrow is repaiied, and safe characteristics of usefulness well.

The utility model discloses a realize through following technical scheme:

the utility model provides a tool bit of pen-shaped eyebrow knife, includes cylindrical tool bit body, be equipped with the blade that can shave the body hair from the upper end on the tool bit body, the blade comprises the arc piece that the cross section is the arc structure and forms curved cutting edge on its upper end, and the blade sets up for the axis L slope of tool bit body.

The blade of the pen-shaped eyebrow razor as described above, wherein the blade includes an arc-shaped main cutting edge at the top end, and the edge line of the main cutting edge is an arc and perpendicular to the axis L of the blade body or substantially perpendicular to the axis L of the blade body.

The cutter head of the pen-shaped eyebrow shaver comprises a concave surface and a convex surface which form an arc-shaped structure, and an upper end surface which is connected with the concave surface and the convex surface from the upper end, wherein the concave surface and the upper end surface are arranged at an acute angle and intersect to form a main cutting edge; the blade is equipped with the radius angle respectively between up end and left and right sides face, the contained angle between the cambered surface that the radius angle formed and the concave surface is the acute angle, the cambered surface that the radius angle formed intersects with the concave surface and forms secondary cutting edge. Or the insert comprises a concave surface and a convex surface forming an arc-shaped structure, and a V-shaped tip connecting the concave surface and the convex surface from an upper end, the V-shaped tip forming a main cutting edge, and an angle β of the V-shaped tip angle being between 5 ° and 30 °.

According to the cutter head of the pen-shaped eyebrow shaping knife, the width D of the upper end of the cutter head body corresponding to the width direction of the blade meets the requirement that D is larger than or equal to 2mm and smaller than or equal to 15mm, and the width E of the upper portion of the blade meets the requirement that E is larger than 2mm and smaller than or equal to 10 mm.

According to the cutter head of the pen-shaped eyebrow shaping knife, the cross section of the blade is of the arc-shaped structure, and the radius R of a circle corresponding to the blade is larger than or equal to 1.5mm and smaller than or equal to R and smaller than or equal to 10 mm.

The angle of inclination alpha between the blade and the axis L of the blade head body is more than or equal to 10 degrees and less than or equal to 80 degrees.

The cutter head of the pen-shaped eyebrow shaping knife is characterized in that the blade is arranged in the cutter head body, a knife outlet which can enable the upper end of the blade to extend upwards is formed in the upper end face of the cutter head body, a knife rest which can move up and down in the cutter head body is arranged in the cutter head body, the blade is fixed on the knife rest and moves upwards along with the knife rest, so that the upper end of the blade extends out of the upper end face of the cutter head body, and retracts into the lower portion of the upper end face of the cutter head body along with the downward movement of the knife rest.

According to the cutter head of the pen-shaped eyebrow shaping knife, the connecting piece capable of preventing the knife rest from falling out of the cutter head body is arranged on the lower portion of the cutter head body, the knife rest is connected to the connecting piece in a vertically sliding mode, and the elastic piece capable of elastically jacking the knife rest downwards when the knife rest rises upwards is arranged between the knife rest and the cutter head body.

According to the cutter head of the pen-shaped eyebrow shaping knife, the connecting piece is provided with the connecting portion which is located below the cutter head body and is connected with the handle, the connecting piece is provided with the through hole which is communicated up and down, the knife rest is provided with the jacking shaft which is inserted into the through hole, and the upper end of the blade extends out of the cutter head body through upwards jacking the jacking shaft.

According to the cutter head of the pen-shaped eyebrow plucker, the connecting piece is clamped and fixed on the cutter head body, the connecting portion is of a cylindrical structure, the jacking shaft is provided with the lug protruding downwards below the connecting portion, the central axis of the lug deviating from the connecting portion is arranged, smooth transition is formed between the lower end faces of the lug and the jacking shaft, and the cutter rest is connected to the connecting piece and rotates along with the rotation of the connecting piece.

The utility model provides a tool bit of pen-shaped eyebrow knife, be equipped with on the outside of connecting portion from the spout of up indent down, be equipped with the draw-in groove of follow side indent along its circumference on the connecting portion outside, the one end of draw-in groove communicates with each other with the upper end of spout, and draw-in groove and spout constitution L shape structure, be equipped with the protruding gear strip in the draw-in groove along circumference on the connecting portion, the chamfer has between the top of gear strip and the both sides face, the gear strip becomes three gear space with the draw-in groove interval, and one of them gear space communicates with each other with the spout.

According to the cutter head of the pen-shaped eyebrow shaver, one end of the elastic part is fixed on the cutter frame, the other end of the elastic part is suspended, and the cutter head body is arranged above the elastic part and is provided with the limiting boss used for limiting the elastic part to lift upwards.

As above a tool bit of pen-shaped eyebrow knife, be equipped with the arc back that supplies the blade to paste on the knife rest, be the T shape about the blade, be equipped with the flank that stretches out relatively from left and right sides tongue platform on the arc back about form the T shape lower part male mounting groove that supplies the blade between flank and the arc back, the below that lies in the flank on the arc back is equipped with the joint boss, the joint boss is equipped with the chamfer so that the blade slides through the joint boss by one side to the mounting groove, be equipped with the joint hole with joint boss joint on the blade, the T shape upper portion card of blade is when controlling the upper end of flank, joint hole card is on the joint boss.

According to the cutter head of the pen-shaped eyebrow shaping knife, the hair discharging opening through which hair falling into the cutter head body can fall out is formed in one side, corresponding to the concave surface of the blade, of the cutter head body.

According to the cutter head of the pen-shaped eyebrow shaping knife, the knife rest is provided with the hair removing inclined plane which obliquely removes the hair openings from top to bottom, the upper end of the hair removing inclined plane is located below the cutting edge of the blade, and the lower end of the hair removing inclined plane is located above the bottom end of the hair opening.

According to the cutter head of the pen-shaped eyebrow shaping cutter, the upper end face of the cutter head body forms the cutter edge, and the side wall corresponding to the convex face of the blade is of an arc structure corresponding to the convex face of the blade.

According to the cutter head of the pen-shaped eyebrow shaping cutter, the comb teeth are arranged on one side, corresponding to the concave surface of the blade, of the cutter head body.

The distance C between the comb teeth opposite to the blade and the blade is between 0.2mm and 3.0 mm.

According to the cutter head of the pen-shaped eyebrow shaping knife, the height B of the blade retracted below the upper end surface of the cutter head body is 0< B and is less than or equal to 0.3 mm.

According to the cutter head of the pen-shaped eyebrow shaping cutter, the height A of the cutter blade extending out of the upper end face of the cutter head body is more than 0 and less than or equal to 0.5 mm.

The cutter head of the pen-shaped eyebrow shaping knife is characterized in that the concave surface of the blade is obliquely arranged downwards.

Compared with the prior art, the utility model discloses there is following advantage:

1. the blade of the utility model is a curved arc structure, and the cutting edge at the upper end of the blade is correspondingly arc-shaped, so that on the premise of ensuring safety, compared with the existing straight eyebrow trimming blade, the blade can be very small and is not easy to be inserted into meat; the upper end of the blade is arranged on the upper end surface of the cutter head body, the cutter head can move perpendicular to the skin or move at a certain angle with the direction perpendicular to the skin during shaving, the cutting edge direction of the blade is inclined to the axial direction of the cutter head to form an inclined cutting angle, the cutting sharpness is ensured, the eyebrow can be effectively cut off by holding the pen-shaped eyebrow shaving cutter to operate like a pen, the flexibility and controllability of eyebrow shaving are improved, the movement, the direction and the shaving amount of the eyebrow shaving can be conveniently controlled, the blade with the arc structure can effectively control the shaving of concave and convex parts, the eyebrow shaving and shaping can be accurately realized, and the cutting edge with the arc structure can ensure that the cutter head can cut from multiple directions, under the condition that the eyebrow trimming pencil is held without angle rotation, the shaving direction of the cutter head is controlled by fingers, and the shaving in different directions can be realized. Moreover, for the individual to trim the eyebrow, look into the mirror, and hold the pen-shaped eyebrow-trimming knife, the pen-shaped eyebrow-trimming knife can achieve better visual field and flexibly use the pen-shaped eyebrow-trimming knife to effectively trim the eyebrow, the operation is convenient, and the shaving safety is high.

2. The blade can stretch out or retract into the tool bit body through the tool outlet. When the shaver is not used, the blade is hidden under the upper end face of the shaver head body, a protective effect is achieved, a pen cap is not needed to be additionally used for protection, when the shaver is used, the upper end of the blade is lifted above the upper end face of the shaver head body through the driving switch device, the blade is fixed well, effective shaving is achieved, the shaver is simple in structure and convenient to use, and the defect that the blade cannot be protected by the pen cap can be avoided being lost.

3. The utility model provides an elastic component can prevent that the blade from stretching out from the tool outlet voluntarily, and can cooperate the jacking device to fix the knife rest together behind jacking device jacking knife rest, it is injectd through elastic component from the top elasticity, and because the knife rest atress down when shaving, the jacking device withstands the knife rest from the bottom, guarantee the stability of knife rest, only need design the jacking device with the height of knife rest jack-up can, moreover, the steam generator is simple in structure, when reducing the knife rest and rising, for the cooperation precision between the spacing required and the tool bit body of limiting position.

4. The utility model discloses a three gear space, the cooperation is at the buckle that sets up on the handle, and one of them gear space communicates with each other with the spout, so that when the handle facial make-up tool bit, the spout cooperatees with the buckle and supplies connecting portion to insert in the assembly groove, and the buckle directly slides in this gear space, rotates the tool bit, makes the buckle slide the gear strip and in a gear space in the middle, then fixes the tool bit installation on the handle, at this moment the position between jacking boss and the lug staggers; when needs are repaiied the eyebrow, rotate the tool bit, make the buckle slide another gear strip and be in the third gear space in, relative about the position between jacking boss and the lug, it makes the blade upper end stretch out in tool bit body top to rotate the in-process through the jacking boss with lug jack-up. When rotating the tool bit in the opposite direction, then withdrawing the tool bit body with the blade, then can follow the handle with the tool bit and pull down when continuing to rotate, dismouting simple structure, the blade goes up and down conveniently.

5. The utility model discloses a one side corresponding with the concave surface of blade sets up the broach on the tool bit body to in the hair of leading, the broach is just right with the blade simultaneously, also can play the effect of a directional instruction, when repairing eyebrow, because the blade is hidden between skin and tool bit body, just can know the direction of blade and the direction of scraping the plane effectively through the broach.

6. The cutting edge is including the arc main cutting edge that is located the top, the cutting edge line of main cutting edge is the axis L of pitch arc and perpendicular to tool bit body or the axis L of basic perpendicular to tool bit body. When the tool bit moves perpendicular to the skin or basically perpendicular to the skin during shaving, the arc-shaped cutting edge of the main cutting edge is basically attached to the skin; or when the cutter head inclines a certain angle in the direction vertical to the skin for shaving, the middle part of the arc-shaped cutting edge of the main cutting edge can be attached to the skin, the two ends of the arc-shaped cutting edge can only tilt to a small height, the arc-shaped cutting edge can also contact the skin according to the floating of the skin during shaving, and the skin is prevented from being injured due to the fact that the small tip of the main cutting edge contacts the skin.

[ description of the drawings ]

The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:

FIG. 1 is a schematic structural view of a pencil-shaped eyebrow razor;

FIG. 2 is an exploded view of an embodiment of the blade of a pencil-shaped eyebrow razor according to the present invention;

FIG. 3 is a top view of the knife head of a pencil-shaped eyebrow plucker of the present invention;

FIG. 4 is a cross-sectional view taken along the direction I-I in FIG. 3, showing the blade tip of a pencil-shaped eyebrow razor according to the present invention in a retracted state;

FIG. 5 is a cross-sectional view of a pencil-shaped eyebrow razor taken along the direction I-I in FIG. 3 with the blade in an extended state;

FIG. 6 is a sectional view of the blade of the pencil-shaped eyebrow plucker of the present invention, taken along the direction II-II in FIG. 3;

FIG. 7 is a schematic view of the structure of a pencil-shaped eyebrow razor head;

FIG. 8 is a top view of an embodiment of a blade;

FIG. 9 is a cross-sectional view of one embodiment of a blade taken along the direction III-III in FIG. 8;

FIG. 10 is a schematic view of the structure of the handle;

FIG. 11 is a schematic view of a pen-shaped eyebrow razor according to an embodiment of the present invention;

FIG. 12 is a schematic view of a second embodiment of a blade head of a pencil-shaped eyebrow razor according to the present invention;

FIG. 13 is a schematic view of a third embodiment of a blade head of a pencil-shaped eyebrow razor according to the present invention;

FIG. 14 is a schematic structural view of another embodiment of a blade;

fig. 15 is a cross-sectional view of the blade of fig. 14.

[ detailed description ] embodiments

The invention will be further described with reference to the accompanying drawings:

as shown in fig. 1 to 9 and 11 to 15, a blade head 10 of a pen-shaped eyebrow razor comprises a columnar blade head body 1, wherein the blade head body 1 is small at the top and large at the bottom, a blade 2 capable of shaving body hair from the upper end is arranged on the blade head body 1, the blade 2 is composed of an arc-shaped piece with an arc-shaped cross section and forms an arc-shaped blade edge at the upper end, and the blade 2 is obliquely arranged relative to an axis L of the blade head body 1.

As shown in fig. 1, the cutter head 10 and the handle 20 can form a pen-shaped eyebrow razor, the blade 2 of the cutter head 10 is curved and has an arc shape, and the cutting edge at the upper end of the cutter head corresponds to the arc shape, so that on the premise of ensuring safety, the blade 2 can be small and is not easy to insert into meat compared with the existing straight eyebrow razor; the pencil-shaped eyebrow shaping knife can operate like a pen by combining the inclined arrangement of the blade 2 relative to the axis L of the knife head body 1, the upper end of the blade 2 is arranged on the upper end face of the knife head body 1, the knife head can move perpendicular to the skin or tilt at a certain angle with the direction perpendicular to the skin during hair shaping, the cutting edge direction of the blade 2 is inclined to the axial direction of the knife head 10 to form an inclined cutting angle, the cutting sharpness is ensured, the eyebrows can be effectively cut off by holding the pencil-shaped eyebrow shaping knife to operate like a pen, the flexibility and controllability of eyebrow shaping are improved, the movement, direction and shaving amount of the eyebrows can be conveniently controlled, and the blade 2 with the arc-shaped structure can effectively control the scraping of concave and convex parts, so that the eyebrow shaping can be accurately carried out.

Moreover, for the individual to trim the eyebrow, look into the mirror, and hold the pen-shaped eyebrow-trimming knife, the pen-shaped eyebrow-trimming knife can achieve better visual field and flexibly use the pen-shaped eyebrow-trimming knife to effectively trim the eyebrow, the operation is convenient, and the shaving safety is high.

In order to have the concavity of the blade 2 facing forward of movement during shaving, the concavity of the blade 2 is disposed obliquely downward to enable better control of the shaving position of the blade 2.

For trimming eyebrows, for better control of shaving precision, the width E of the upper portion of the blade 2 satisfies 2mm < E.ltoreq.10 mm, and the width D of the upper end of the head body 1 corresponding to the width direction of the blade 2 satisfies 2 mm.ltoreq.D.ltoreq.15 mm, preferably 3 mm.ltoreq.E.ltoreq.6 mm, and 4 mm. ltoreq.D.ltoreq.8 mm.

In order to enable the blade 2 to have a bending degree beneficial to cutting, the cross section of the blade 2 is of a circular arc structure, and the radius R of a circle corresponding to the cross section of the blade meets the condition that R is more than or equal to 1.5mm and less than or equal to 10 mm.

Of course, the eyebrow razor can be applied to repair body hair of armpits and other parts besides eyebrow trimming. Correspondingly, the width E of the upper portion of the insert 2 and the width D of the upper end of the bit body 1 can be made adaptively large.

In the embodiment shown in fig. 4, in order to ensure the sharpness of the shaving in the pen-holding posture, the inclination angle alpha between the blade 2 and the axis L of the cutter head body 1 is more than or equal to 10 degrees and less than or equal to 80 degrees, and in order to ensure that the pen-shaped eyebrow shaver can better ensure the sharpness of the shaving when the eyebrow shaver is inclined at a certain angle with the direction vertical to the skin, the inclination angle alpha between the blade 2 and the axis L of the cutter head body 1 is more than or equal to 20 degrees and less than or equal to 50 degrees.

As shown in the embodiment of figure 5, the safety is better ensured while the shaving performance of the blade 2 is ensured, and the height A of the blade 2 extending above the upper end face of the cutter head body 1 satisfies 0< A ≦ 0.5 mm.

The blade 2 extends out of the upper end face of the cutter head body 1, and a structural mode that the blade 2 is fixed on the cutter head body 1 can be adopted, such as that the blade 2 and the cutter head body 1 are fixed through integral injection molding. When the pencil is not used, the pencil cap is sleeved on the tool bit 10 to protect the blade 2, so that the exposed blade edge is prevented from being scraped in life.

As another embodiment of the embodiment shown in fig. 2 to 7, the blade 2 protrudes above the upper end surface of the cutter head body 1, the blade 2 is located in the cutter head body 1, the upper end surface of the cutter head body 1 is provided with a knife outlet 11, and a driving switch device capable of driving the upper end of the blade 2 to protrude above the upper end surface of the cutter head body 1 from the knife outlet 11 and fixing the blade 2 can be arranged between the cutter head 10 and the handle 20. When the cutting head is not in use, the blade 2 is hidden under the upper end surface of the cutting head body 1, so that a protection effect is achieved, and a pen cap is not required to be additionally used for protection, as shown in fig. 4, the height B of the blade 2 retracted under the upper end surface of the cutting head body 1 meets the requirement that B is more than 0 and less than or equal to 0.3 mm; when the shaver is used, the upper end of the blade 2 is lifted above the upper end surface of the shaver head body 1 by driving the switch device, and the blade 2 is fixed well so as to effectively shave, so that the shaver is simple in structure and convenient to use, and the defect that the blade 2 cannot be protected by losing the pen cap can be avoided.

In order to improve safety, the side wall 14 corresponding to the convex surface of the blade 2 and forming the knife edge 11 on the upper end surface of the cutter head body 1 is of an arc structure corresponding to the convex surface of the blade 2, the convex surface of the blade 2 is arranged close to the side wall 14, one can prevent skin from being squeezed between the blade 2 and the side wall 14 during shaving, and the other can play a role of protection when the blade 2 retracts below the upper end surface of the cutter head body 1.

The novel cutting head is characterized in that a cutter rest 3 capable of moving up and down is arranged in the cutter head body 1, the blade 2 is fixed on the cutter rest 3 and extends out of the upper end face of the cutter head body 1 along with the upward movement of the cutter rest 3, and retracts below the upper end face of the cutter head body 1 along with the downward movement of the cutter rest 3, a connecting piece 4 capable of preventing the cutter rest 3 from falling out of the cutter head body 1 is arranged at the lower part of the cutter head body 1, the cutter rest 3 is connected to the connecting piece 4 in a vertical sliding mode, an elastic piece 5 capable of elastically jacking the cutter rest 3 downwards when the cutter rest 3 ascends is arranged between the cutter rest 3 and the cutter head body 1, a connecting part 41 which is arranged below the cutter head body 1 and is connected with the handle 20 is arranged on the connecting piece 4, a through hole 42 which penetrates through up and down is arranged on the connecting piece 4, a jacking shaft 31 which is inserted into the through hole 42 is arranged on the cutter rest 3, and a jacking device which is arranged between the cutter head 10 and the handle 20 is used for jacking up and jacking up the jacking shaft 31 so as to enable the upper end of the blade 2 to extend out Above the tool bit body 1, the structure is simple. The elastic piece 5 can prevent the blade 2 from extending from the blade outlet 11 autonomously, and can cooperate the jacking device to fix the blade carrier 3 together after the jacking device jacks up the blade carrier 3, the elastic piece 5 is used for elastic limitation from the top, and the blade carrier 3 is forced downwards when shaving, the jacking device jacks up the blade carrier 3 from the bottom, the stability of the blade carrier 3 is ensured, only the height of the jacking device for jacking up the blade carrier 3 needs to be designed, the structure is simple, and the matching precision between the blade carrier 3 and the blade carrier body 1, which is required by the limited position when the blade carrier 3 is lifted up, is reduced.

Elastic component 5 is that one end is fixed on knife rest 3, the unsettled bullet arm of the other end, tool bit body 1 is located elastic component 5 top and is equipped with the spacing boss 12 that is used for restricting elastic component 5 and upwards rises, preferably, elastic component 5 and knife rest 3 integrated into one piece, simple structure, the equipment is convenient.

As shown in fig. 10, a fitting groove 201 recessed downward and engaged with the connecting portion 41 is provided at an upper end of the handle 20, a lift-up boss 202 is provided in the fitting groove 201, and a protruding catch 203 is provided on a side wall of the fitting groove 201.

The connecting piece 4 is clamped and fixed on the cutter head body 1, the connecting part 41 is of a cylindrical structure so as to be capable of rotating in the assembling groove 201, the jacking shaft 31 is provided with a lug 32 which protrudes downwards below the connecting part 41, the lug 32 is arranged by deviating from the central axis of the connecting part 41, the lug 32 and the lower end face of the jacking shaft 31 are in smooth transition, the cutter rest 3 is connected on the connecting piece 4 and rotates along with the rotation of the connecting piece 4, when the cutter rest 3 rotates, the jacking boss 202 can interfere with the lug 32 and jack the lug 32 upwards, the lug 32 and the jacking boss 202 form a jacking device, the structure is simple, after the cutter head 10 is installed on the handle 20, the connecting piece 4 and the cutter rest 3 are driven to rotate together by rotating the cutter head body 1, because the cutter rest 3 can slide up and down on the connecting piece 4, in the rotating process, the lug 32 is jacked by the jacking boss 202 when contacting with the jacking boss 202, so that the upper end of the blade 2 protrudes above the cutter head body 1 as shown in fig. 5.

Be equipped with on the outside of connecting portion 41 from up going the indent down and can supply buckle 203 to slide in its spout 43, be equipped with the draw-in groove 44 of indent from the side along its circumference on the connecting portion 41 outside, the one end of draw-in groove 44 communicates with each other with the upper end of spout 43 and can supply buckle 203 to slide in from spout 43 thereby restriction connecting portion 41 upwards deviates from assembly slot 201, and draw-in groove 44 and spout 43 constitute L shape structure, be equipped with protruding in draw-in groove 44 and be used for blockking the gliding gear strip 45 of buckle 203 in draw-in groove 44 along circumference on connecting portion 41, it makes buckle 203 slide gear strip 45 under the exogenic action to have the chamfer between the top of gear strip 45 and the both sides face, gear strip 45 separates draw-in groove 44 into three gear space 46 with buckle 203 matched with.

One of the shift positions 46 is communicated with the sliding slot 43, so that when the cutter head 10 is mounted on the handle 20, the sliding slot 43 is matched with the buckle 203 to enable the connecting part 41 to be inserted into the assembling slot 201, the buckle 203 directly slides into the shift position space 46, the cutter head 10 is rotated to enable the buckle 203 to slide through the shift position strip 45 and be located in one of the middle shift positions 46, the cutter head 10 is mounted and fixed on the handle 20, and the positions between the jacking boss 202 and the lug 32 are staggered; when eyebrow trimming is needed, the cutter head 10 is rotated, the buckle 203 slides through the other gear position bar 45 and is located in the third gear position space 46, the jacking boss 202 and the lug 32 are opposite up and down, and the lug 32 is jacked up through the jacking boss 202 in the rotating process, so that the upper end of the blade 2 extends out of the upper part of the cutter head body 1. When the cutter head 10 is rotated in the opposite direction, the cutter head body 1 is retracted by the blade 2, the cutter head 10 can be detached from the handle 20 when the cutter head is continuously rotated, the detaching structure is simple, and the blade 2 is convenient to lift.

The driving switch device between the cutter head 10 and the handle 20 is composed of the upper cutter frame 3, the elastic piece 5, the connecting piece 4, the assembling groove 201 of the handle 20, the lifting boss 202 and the buckle 203.

As shown in the embodiment of fig. 2 to 5, be equipped with the arc back 33 that supplies blade 2 to paste on knife rest 3, blade 2 is the T shape from top to bottom, be equipped with the flank 34 that stretches out relatively from left and right sides tongue platform on the arc back 33, control form the male mounting groove 35 of T shape lower part that supplies blade 2 between flank 34 and the arc back 33, the below that lies in flank 34 on the arc back 33 is equipped with joint boss 36, joint boss 36 leans on one side to mounting groove 35 to be equipped with the chamfer in order to supply blade 2 to slide joint boss 36, be equipped with the joint hole 27 with joint boss 36 joint on blade 2, when the upper end of flank 34 about T shape upper portion card of blade 2, joint hole 27 card is on joint boss 36, simple structure, convenient assembling. The blade 2 can be punched from a T-shaped plate by a metal sheet, and simultaneously, the clamping hole 27 is punched, then the blade is bent into an arc shape, and finally, after the blade 2 is inclined for a certain angle, the upper end of the blade 2 is cut flat, and a cutting edge is processed. Then insert the blade 2 after the shaping from last down in the mounting groove 35, make joint hole 27 joint on joint boss 36, two steps card of blade 2 can on flank 34 simultaneously.

In order to facilitate the hair falling into the cutter head body 1 to fall out, one side of the cutter head body 1 corresponding to the concave surface of the blade 2 is provided with a hair discharging port 13 through which the hair falling into the cutter head body 1 can fall out, a hair discharging inclined plane 37 which slants downwards from the top and is used for discharging the hair discharging port 13 is arranged on the cutter rest 3, the upper end of the hair discharging inclined plane 37 is positioned below the cutting edge of the blade 2, and the lower end of the hair discharging inclined plane is positioned above the bottom end of the hair discharging port 13.

As shown in fig. 2 to 5 and fig. 11, the side of the cutting head body 1 corresponding to the concave surface of the blade 2 is provided with a comb tooth 15 for guiding hairs, and the comb tooth 15 is opposite to the blade 2, and can also play a role of directional indication, when eyebrow trimming, since the blade is hidden between the skin and the cutting head body 1, the direction of the blade 2 can be known through the comb tooth 15, and the direction of the eyebrow can be effectively shaved. A hair discharging opening 13 for the hair falling into the cutter head body 1 to fall out is formed between two adjacent comb teeth 15.

In order to prevent skin from getting caught between the teeth 15 and being cut by the blade 2, the distance C between the blade 2 and the teeth 15 directly opposite the blade 2 is between 0.2mm and 3.0mm, preferably between 0.8mm and 1.5 mm.

As shown in fig. 12, as another embodiment of the orientation indication of the hair-removing hole and the blade 2, a notch is formed in one side of the cutter head body 1 corresponding to the concave surface of the blade 2, and can be used for the orientation indication of the hair-removing hole and the blade 2, and an independent hair-removing hole 13 is additionally formed below the notch.

As shown in fig. 13, as a third embodiment of the orientation indication of the hair-removing hole and the blade 2, a long notch from top to bottom is provided on the side of the cutter head body 1 corresponding to the concave surface of the blade 2, and the long notch serves as the orientation indication of the hair-removing hole 13 and the blade 2.

The cutting edge comprises an arc-shaped main cutting edge 24 at the top end, and the edge line of the main cutting edge 24 is arc-shaped and perpendicular to the axis L of the cutter head body 1 or substantially perpendicular to the axis L of the cutter head body 1. The arcuate edge of the major cutting edge 24 is substantially adjacent the skin during shaving when the cartridge 10 is moved normal to the skin or substantially normal to the skin; or when the cutter head 10 inclines to a certain angle in the direction vertical to the skin for shaving, the arc-shaped cutting edge of the main cutting edge 24 can be attached to the skin at the middle part, and the two ends can only tilt to a small height, so that the main cutting edge 24 can contact the skin according to the floating of the skin during shaving, and the skin is prevented from being injured due to the fact that only a small tip part of the main cutting edge 24 contacts the skin.

As shown in fig. 8 and 9, as an embodiment of the insert 2, the insert 2 includes a concave surface 21 and a convex surface 23 forming an arc structure, and an upper end surface 22 connecting the concave surface 21 and the convex surface 23 from an upper end, the concave surface 21 and the upper end surface 22 being disposed at an acute angle and intersecting to form a main cutting edge 24. The arc formed by the intersection of the concave surface 21 and the upper end surface 22 is the edge line of the main cutting edge 24. The blade 2 is provided with a fillet 25 between the upper end surface 22 and the left and right side surfaces, an included angle between an arc surface formed by the fillet 25 and the concave surface 21 is an acute angle, and an arc surface formed by the fillet 25 is intersected with the concave surface 21 to form an auxiliary cutting edge 26, so that the multi-direction shaving effect of the cutter head is improved.

As shown in fig. 9, the intersection of the convex surface 23 and the upper end surface 22 forms an arc that is lower than the intersection of the concave surface 21 and the upper end surface 22 so that the major cutting edge 24 is angled upwardly to provide cutting sharpness.

As shown in fig. 14 and 15, as another embodiment of the insert 2, the insert 2 includes a concave surface 21 and a convex surface 23 forming an arc structure, and a V-shaped tip 28 connecting the concave surface 21 and the convex surface 23 from an upper end, the V-shaped tip 28 forming a main cutting edge 24, and an angle β of the V-shaped tip is between 5 ° and 30 °, preferably 15 ° and 20 °.

Claims

1. The utility model provides a tool bit of pen-shaped eyebrow knife which characterized in that: the shaver comprises a columnar shaver head body (1), wherein a blade (2) capable of shaving body hair from the upper end is arranged on the shaver head body (1), the blade (2) is composed of an arc-shaped piece with an arc-shaped cross section and forms an arc-shaped blade edge at the upper end of the arc-shaped piece, and the blade (2) is obliquely arranged relative to an axis (L) of the shaver head body (1).

2. The cutter head of the pen-shaped eyebrow razor according to claim 1, wherein: the cutting edge comprises an arc-shaped main cutting edge (24) positioned at the top end, and the edge line of the main cutting edge (24) is arc-shaped and is perpendicular to the axis (L) of the cutter head body (1) or is basically perpendicular to the axis (L) of the cutter head body (1).

3. The cutter head of the pen-shaped eyebrow razor according to claim 2, wherein: the cutting insert (2) comprises a concave surface (21) and a convex surface (23) which form an arc-shaped structure, and an upper end surface (22) which is connected with the concave surface (21) and the convex surface (23) from the upper end, wherein the concave surface (21) and the upper end surface (22) are arranged at an acute angle, and the two are intersected to form a main cutting edge (24).

4. The cutter head of the pen-shaped eyebrow razor according to claim 3, wherein: blade (2) are equipped with radius angle (25) respectively between up end (22) and the left and right sides face, the contained angle between cambered surface that radius angle (25) formed and concave surface (21) is the acute angle, the cambered surface that radius angle (25) formed intersects with concave surface (21) and forms secondary cutting edge (26).

5. The cutter head of the pen-shaped eyebrow razor according to claim 2, wherein: the insert (2) comprises a concave surface (21) and a convex surface (23) forming an arc-shaped structure, and a V-shaped tip (28) connecting the concave surface (21) and the convex surface (23) from the upper end, the V-shaped tip (28) forming a main cutting edge (24), and the angle beta of the V-shaped tip angle being between 5 DEG and 30 deg.

6. The cutter head of a pen-shaped eyebrow razor according to any one of claims 1 to 5, wherein: the width D of the upper end of the tool bit body (1) corresponding to the width direction of the blade (2) is larger than or equal to 2mm and smaller than or equal to 15mm, and the width E of the upper part of the blade (2) is larger than 2mm and smaller than or equal to 10 mm.

7. The cutter head of a pen-shaped eyebrow razor according to any one of claims 1 to 5, wherein: the cross section of the blade (2) is of a circular arc structure, and the radius R of a circle corresponding to the blade satisfies that R is more than or equal to 1.5mm and less than or equal to 10 mm.

8. The cutter head of a pen-shaped eyebrow razor according to any one of claims 1 to 5, wherein: the inclination angle alpha between the blade (2) and the axis (L) of the tool bit body (1) is more than or equal to 10 degrees and less than or equal to 80 degrees.

9. The cutter head of a pen-shaped eyebrow razor according to any one of claims 1 to 5, wherein: the utility model discloses a cutter head, including cutter head body (1), blade (2), cutter head body (1), be equipped with the upper end of confession blade (2) on the up end of cutter head body (1) and go out edge of a knife (11) that upwards stretches out, be equipped with in cutter head body (1) and can reciprocate in it knife rest (3), blade (2) are fixed on knife rest (3) and along with knife rest (3) rebound and make the upper end of blade (2) stretch out on the up end of cutter head body (1), and along with knife rest (3) rebound and retract under the up end of cutter head body (1).

10. The cutter head of the pen-shaped eyebrow razor according to claim 9, wherein: the tool bit is characterized in that a connecting piece (4) capable of preventing the tool rest (3) from falling out of the tool bit body (1) is arranged on the lower portion of the tool bit body (1), the tool rest (3) is connected to the connecting piece (4) in a vertical sliding mode, and an elastic piece (5) capable of elastically jacking the tool rest (3) downwards when the tool rest (3) ascends is arranged between the tool rest (3) and the tool bit body (1).

11. The cutter head of a pen-shaped eyebrow razor according to claim 10, wherein: the novel screwdriver is characterized in that a connecting part (41) which is located below the screwdriver head body (1) and is connected with the handle (20) is arranged on the connecting part (4), a through hole (42) which is through up and down is formed in the connecting part (4), a jacking shaft (31) which is inserted into the through hole (42) is arranged on the tool rest (3), and the upper end of the blade (2) extends out of the upper portion of the screwdriver head body (1) through upwards jacking the jacking shaft (31).

12. The cutter head of a pen-shaped eyebrow razor according to claim 11, wherein: the tool bit is characterized in that the connecting piece (4) is clamped and fixed on the tool bit body (1), the connecting portion (41) is of a cylindrical structure, the jacking shaft (31) is provided with a lug (32) protruding downwards below the connecting portion (41), the lug (32) deviates from the central axis of the connecting portion (41), the lug (32) and the lower end face of the jacking shaft (31) are in smooth transition, and the tool rest (3) is connected to the connecting piece (4) and rotates along with the rotation of the connecting piece (4).

13. The cutter head of a pen-shaped eyebrow razor according to claim 12, wherein: be equipped with on the outside of connecting portion (41) from spout (43) of up indent down, be equipped with draw-in groove (44) from the side indent along its circumference on connecting portion (41) the outside, the one end of draw-in groove (44) communicates with each other with the upper end of spout (43), and draw-in groove (44) and spout (43) constitute L shape structure, be equipped with protruding gear strip (45) in draw-in groove (44) along circumference on connecting portion (41), the chamfer has between the top of gear strip (45) and the both sides face, gear strip (45) separate into three gear space (46) with draw-in groove (44), and one of them gear space (46) communicates with each other with spout (43).

14. The cutter head of a pen-shaped eyebrow razor according to claim 10, wherein: elastic component (5) are the unsettled spring arm of one end fixed on knife rest (3), the other end, tool bit body (1) is located elastic component (5) top and is equipped with spacing boss (12) that are used for restricting elastic component (5) and rise up.

15. The cutter head of the pen-shaped eyebrow razor according to claim 9, wherein: an arc back (33) for the blade (2) to lean against is arranged on the knife rest (3), the blade (2) is T-shaped up and down, the arc back (33) is provided with side wings (34) which extend out from the tongue platforms at the left side and the right side, a mounting groove (35) for inserting the T-shaped lower part of the blade (2) is formed between the left side wing (34) and the right side wing (33), a clamping boss (36) is arranged below the side wing (34) on the arc back part (33), a chamfer is arranged on one side of the clamping boss (36) close to the mounting groove (35) for the blade (2) to slide through the clamping boss (36), the blade (2) is provided with a clamping hole (27) which is clamped with the clamping boss (36), when the T-shaped upper part of the blade (2) is clamped at the upper ends of the left and right side wings (34), the clamping hole (27) is clamped on the clamping boss (36).

16. The cutter head of the pen-shaped eyebrow razor according to claim 9, wherein: one side of the cutter head body (1) corresponding to the concave surface of the blade (2) is provided with a hair discharging opening (13) through which hairs falling into the cutter head body (1) can fall out.

17. The cutter head of a pen-shaped eyebrow razor according to claim 16, wherein: the tool rest (3) is provided with a hair removing inclined plane (37) which obliquely removes the hair opening (13) from top to bottom, the upper end of the hair removing inclined plane (37) is positioned below the cutting edge of the blade (2), and the lower end of the hair removing inclined plane is positioned above the bottom end of the hair opening (13).

18. The cutter head of the pen-shaped eyebrow razor according to claim 9, wherein: the upper end face of the tool bit body (1) forms a knife edge (11) and the side wall (14) corresponding to the convex face of the blade (2) is of an arc structure corresponding to the convex face of the blade (2).

19. The cutter head of the pen-shaped eyebrow razor according to claim 9, wherein: one side of the tool bit body (1) corresponding to the concave surface of the blade (2) is provided with comb teeth (15).

20. The cutter head of a pen-shaped eyebrow razor according to claim 19, wherein: the distance C between the comb teeth (15) opposite to the blade (2) and the blade (2) is between 0.2mm and 3.0 mm.

21. The cutter head of the pen-shaped eyebrow razor according to claim 9, wherein: the height B of the blade (2) retracted below the upper end surface of the tool bit body (1) meets the requirement that B is more than 0 and less than or equal to 0.3 mm.

22. The cutter head of the pen-shaped eyebrow razor according to claim 1, wherein: the height A of the blade (2) extending out of the upper end face of the tool bit body (1) meets the requirement that A is more than 0 and less than or equal to 0.5 mm.

23. The cutter head of the pen-shaped eyebrow razor according to claim 1, wherein: the concave surface of the blade (2) is obliquely arranged downwards.