CN218747862U - Stationary knife support, stationary knife structure and tool bit of reciprocating electric shaver - Google Patents

Abstract

The utility model discloses a fixed cutter structure of a reciprocating electric shaver, wherein a fixed cutter and a fixed cutter bracket are arranged in a split way, and tooth bars with different lengths are arranged on the fixed cutter bracket, wherein a short tooth bar is separated from the top of the fixed cutter to form an avoiding space; or the notches are arranged on the fixed cutter support and correspond to the plurality of the pore inlets to form an avoiding space, partial cutting teeth of the movable cutter can be closer to the side edge of the fixed cutter structure, the area between the movable cutter and the side edge of the fixed cutter structure without a cutting function is reduced, and the shaving performance is improved. The utility model also discloses a tool bit of reciprocating type electric shaver, the partial cutting tooth that moves the sword corresponds dodges the space and extends the long cutting tooth that forms and can dodge the within range reciprocating motion all around that the space corresponds to the outside, and the performance of shaving is good. The utility model also discloses a stationary knife support of reciprocating type electric shaver, the space is dodged in the regional formation that the short tooth pole corresponds behind the installation stationary knife.

Description

Stationary knife support, stationary knife structure and tool bit of reciprocating electric shaver

[ technical field ] A method for producing a semiconductor device

The utility model relates to a reciprocating type electric shaver's stationary knife structure, the utility model discloses still relate to a reciprocating type electric shaver's tool bit, the utility model discloses still relate to a reciprocating type electric shaver's stationary knife support.

[ background of the invention ]

The common reciprocating electric shaver consists of a fixed cutter and a movable cutter which form a cutting assembly, wherein the fixed cutter is provided with a hair inlet groove, and the movable cutter reciprocates below the fixed cutter to cut hairs entering from the hair inlet groove. The fixed cutter is supported and fixed by a fixed cutter bracket to form a working surface for cutting. In order to avoid the situation that the movable knife touches the fixed knife bracket during reciprocating motion, the movable knife is placed on the inner sides of the left support arm and the right support arm of the fixed knife bracket, a certain safety distance can be reserved between the movable knife and the left support arm and the right support arm of the fixed knife bracket, and the safety distance is usually wider in consideration of the practical problems of part manufacturing tolerance, assembly tolerance, reciprocating motion matching tolerance and the like, so that a wider area of the shaving head does not have a cutting function during cutting on the left side and the right side, the shaving head needs to be moved to the inner side to start cutting during shaving, and the shaving efficiency and the use experience of a user are influenced. In addition, when cutting, usually the top surface of the fixed knife moves along with the skin, and sometimes a user can also support the skin slightly tilting knife head to move by the left end or the right end of the knife head, under the state, because a wider distance exists between the area which can be cut by the knife head and the left side or the right side of the knife head, the cutting area of the knife head is easy to tilt and separate from the skin by a distance, one can cause that the hair root is too long when long hair is cut, and the other can cause that short hair cannot enter the cutting area of the knife head when short hair is cut, so that the phenomenon that the hair cannot be cut occurs.

The present invention is a technical improvement based on such a situation.

[ Utility model ] A method for manufacturing a semiconductor device

The utility model aims to solve the technical problem that a reciprocating type electric shaver's stationary knife structure of simple structure is provided, stationary knife and stationary knife support components of a whole that can function independently set up to through the ratch that sets up different length on the stationary knife support, wherein short ratch breaks away from the stationary knife top and forms and dodges the space, can be close to the side reason of stationary knife structure more with the part cutting tooth that supplies to move the sword, reduce the region that does not have cutting function between the side reason of moving the sword to the stationary knife structure, improve the performance of shaving.

In order to solve the technical problem, the utility model relates to a stationary knife structure of reciprocating type electric shaver, the stationary knife of making including rigid stationary knife support and flexible foil, the stationary knife support includes the stationary knife chassis and follows the left and right side support wall that stretches out in the both ends slant about the stationary knife chassis, the stationary knife includes stationary knife top and the kink of buckling downwards from the stationary knife top left and right sides, the kink pastes on the outside of left and right side support wall and fixes, and the stationary knife top is taut tight between left and right side support wall, the stationary knife just is equipped with a plurality of income pores that run through stationary knife top and kink simultaneously along the fore-and-aft direction on left side and/or right side, is formed with the stationary knife tooth between the income pore that adjacent two are close to, at least one of them it sets up a plurality of and advances hair groove with advancing the pore one-to correspond along the fore-and two to advance to be formed with the tooth bar between the hair groove and support the tooth bar, and sink and form a short tooth bar and break away from the stationary knife top to have at least one tooth bar to sink and dodge between the space formation of stationary knife top between the upper end of stationary knife top.

In the fixed cutter structure of the reciprocating electric shaver, part of the tooth bar is retained, and part of the tooth bar sinks to form the short tooth bar, the top of the tooth bar is supported on the left side or the right side of the top of the fixed cutter, and the outer side surfaces of the tooth bar and the short tooth bar are supported on the inner wall of the fixed cutter tooth on the bent part.

The utility model aims to solve another technical problem that a simple structure's reciprocating type electric shaver's stationary knife structure is provided, stationary knife and stationary knife support components of a whole that can function independently set up to correspond a plurality of pore formations of advancing through setting up the breach on the stationary knife support and dodge the space, can be close to the side reason of stationary knife structure more with the part cutting tooth that supplies to move the sword, reduce the region that does not have cutting function between the side reason of moving sword to the stationary knife structure, improve the shaving performance.

In order to solve the technical problem, the utility model relates to a reciprocating type electric shaver's stationary knife structure, including the stationary knife that rigid stationary knife support and flexible foil made, the stationary knife support is including stationary knife chassis and the left and right side support wall that upwards stretches out from the left and right sides both ends slant of stationary knife chassis, the stationary knife is including stationary knife top and the kink of buckling downwards from the stationary knife top left and right sides, the kink pastes on the outside of left and right side support wall and fixes, and the stationary knife top is taut tight between left and right side support wall, the stationary knife is equipped with a plurality of pore of advancing that run through stationary knife top and kink simultaneously on left side and/or right side and along the fore-and-aft direction, is formed with stationary knife tooth between the pore that advances that adjacent two are close to, corresponds there is pore one side of advancing be equipped with a plurality of breachs on the side support wall, every the breach corresponds the pore of advancing more than two in succession, form between breach and the stationary knife top and dodge the space.

The utility model aims to solve another technical problem that a simple structure's tool bit is provided, dodge the space through forming between stationary knife support and stationary knife, move the partial cutting tooth of sword and correspond to dodge the space and extend the long cutting tooth that forms can dodge the within range front and back reciprocating motion that the space corresponds to the outside, reduce and move the region that does not have cutting function between the side reason of sword to the stationary knife structure, improve the performance of shaving.

For solving the technical problem, the utility model relates to a tool bit, including foretell reciprocating type electric shaver's stationary knife structure, the inside of stationary knife structure is equipped with moves the sword, the stationary knife with move the sword and cooperate and constitute cutting assembly, it is equipped with the cutting tooth to move one side that corresponds the pore of advancing on the sword, wherein a plurality of cutting teeth correspond and dodge the space and form the long cutting tooth that can dodge the space and correspond reciprocating motion around the within range that the space corresponds to the outside extension, move and be connected with the transmission part that is used for being connected with electric shaver's power device on the sword.

According to the cutter head, the elastic piece used for elastically pressing the movable cutter against the fixed cutter is arranged in the fixed cutter structure.

According to the cutter head, the transmission part comprises the movable cutter support fixedly connected with the movable cutter and the driving seat connected with the power device of the electric shaver, the movable cutter support is fixedly connected with the driving seat, and the fixed cutter support is integrally formed with the guide rail for guiding the movable cutter support to reciprocate back and forth.

According to the above-mentioned cutter head, the long cutting teeth are bent teeth, which extend outwards along the top of the fixed cutter, and extend to the bent portion after being bent correspondingly at the joint of the top of the fixed cutter and the bent portion, and the corresponding fixed cutter teeth and the long cutting teeth together form a cutting area spanning from the top of the fixed cutter to the bent portion.

The utility model aims to solve another technical problem that a reciprocating type electric shaver's stationary knife support of simple structure is provided, through setting up the ratch of different length, the space is dodged in the regional formation that short ratch corresponds behind the installation stationary knife to the part cutting tooth that supplies to move the sword can be close to the side reason of stationary knife structure more, reduces the region that does not have the cutting function between the side reason that moves the sword to the stationary knife structure, improves the shaving performance.

In order to solve the technical problem, the utility model relates to a reciprocating type electric shaver's stationary knife support, including stationary knife chassis and from the left and right side support wall that stretches out about the stationary knife chassis both ends slant, at least one of them a plurality of hair feeding grooves, adjacent two have been seted up along the fore-and-aft direction on the side support wall the hair feeding groove is formed with the ratch, has at least one ratch to sink and shortens to form short ratch.

The fixed blade support of the reciprocating electric shaver is characterized in that the sinking height h of the short tooth bar is between 0.15mm and 0.8mm or between 0.25mm and 0.5 mm.

According to the fixed cutter support of the reciprocating electric shaver, the hair inlet grooves in the same row are uniformly arranged, and more than three short tooth bars are continuously formed in each sunken position in the tooth bars in the same row.

According to the fixed cutter support of the reciprocating electric shaver, a plurality of short tooth rods formed by sinking are arranged in the middle of the same row of tooth rods at intervals, and a tooth rod which does not sink is arranged between every two adjacent short tooth rods at intervals.

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

1. the fixed cutter structure of the utility model has the advantages that the fixed cutter and the fixed cutter support are arranged in a split way, the fixed cutter support has rigidity and flexibility, the top of the fixed cutter is tightened through the left and right supporting walls to form a cutting working surface, and the fixed cutter does not need to be supported through the rigidity of the fixed cutter, so that the fixed cutter structure can be very thin and the hair shaving cleanliness is improved; and set up down the short rack bar of a take the altitude through on the stationary knife support to form after the installation stationary knife and dodge the space, so that the partial cutting tooth that supplies to move the sword can be closer to the side reason of stationary knife structure more, reduces and moves the sword and do not have the region of cutting function to the side reason of stationary knife structure between, improves the performance of shaving.

2. The utility model discloses a stationary knife structure is through setting up the breach that the width is not less than two above pore on the stationary knife support to form behind the installation stationary knife and dodge the space, so that the part that supplies to move the sword cuts the side reason that the tooth can be close to the stationary knife structure more, reduces the region that does not have the cutting function between the side reason that moves the sword to the stationary knife structure, improves the performance of shaving.

3. The utility model discloses a tool bit, dodge the space through structural setting at the stationary knife, and set up the partial long cutting tooth that prolongs to the outside on moving the sword, in the reciprocating motion all around that moves the sword, long cutting tooth is dodging the within range reciprocating motion that the space corresponds, cut hair with the cooperation of stationary knife tooth, because long cutting tooth can be close to the side reason of stationary knife structure more, reduce the region that does not have cutting function between the side reason of moving the sword to the stationary knife structure, the cutting region that long cutting tooth corresponds is close to both ends about this tool bit, can get into the cutting fast during shaving, the efficiency of the improvement shaving and user's use experience. In addition, when a user supports the skin slightly tilting the cutter head to move by the left end or the right end of the cutter head during cutting, if a cutting area corresponding to the long cutting teeth exists, the cutting area is relatively short in distance from the left end or the right end of the cutter head, and the cutter head normally slightly presses the skin during use, so that the cutting area is more easily attached to the skin or moves close to the skin instead of tilting the skin for a certain distance, the length of the residual hair root is reduced during cutting long hair, and the shaving cleanliness is improved; and the other is that when the short hair is cut, the short hair can enter the cutting area to be cut, so that the phenomenon that the hair cannot be cut is avoided.

4. The utility model discloses a stationary knife support is through setting up the ratch of different length to the space is dodged in the regional formation that short ratch corresponds behind the installation stationary knife, so that the partial cutting tooth that supplies to move the sword can be close to the side reason of stationary knife structure more, reduces to move the region that does not have cutting function between the side reason 2a of sword to the stationary knife structure, improves the performance of shaving.

[ 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 an exploded view of a cutter head of a reciprocating electric shaver according to the present invention;

fig. 2 is a schematic structural view of an embodiment of a stationary blade holder of a reciprocating electric shaver according to the present invention;

FIG. 3 is a cross-sectional view of a stationary knife structure using the stationary knife bracket of FIG. 2 at an escape space;

FIG. 4 is a cross-sectional view of another angle of the stationary knife structure at the relief space using the stationary knife holder of FIG. 2;

fig. 5 is a top view of a shaving head of a reciprocating electric shaver according to the present invention;

FIG. 6 isbase:Sub>A cross-sectional view of an embodiment ofbase:Sub>A cutting head ofbase:Sub>A reciprocating electric shaver according to the present invention, taken along the direction A-A in FIG. 5;

FIG. 7 is a cross-sectional view of an embodiment of a cutting head of a reciprocating electric shaver according to the present invention, taken along the direction B-B in FIG. 5;

FIG. 8 is a cross-sectional view of another embodiment of a stationary knife structure at an avoidance space;

FIG. 9 is an exploded view of the stationary knife structure in the embodiment of FIG. 8;

fig. 10 isbase:Sub>A sectional view of another embodiment ofbase:Sub>A cutter head ofbase:Sub>A reciprocating electric shaver according to the present invention, taken along the directionbase:Sub>A-base:Sub>A of fig. 5.

[ detailed description ] embodiments

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

a fixed cutter structure of a reciprocating electric shaver shown in fig. 1 to 10 includes a rigid fixed cutter holder 1 and a fixed cutter 2 made of a flexible metal sheet. The fixed knife is made of flexible metal sheets, and can be tensioned and fixed on the fixed knife bracket by utilizing the flexibility of the fixed knife.

The embodiments shown in fig. 1 to 7:

the fixed cutter support 1 comprises a fixed cutter base frame 11, a left supporting wall and a right supporting wall 12, wherein the left supporting wall and the right supporting wall extend upwards from the left end and the right end of the fixed cutter base frame 11 in an inclined mode, a plurality of hair inlet grooves 13 are formed in at least one of the supporting walls 12 in the front-back direction, a toothed bar 14 is formed between every two adjacent hair inlet grooves 13, and at least one toothed bar 14 sinks and shortens to form a short toothed bar 15.

The fixed knife 2 comprises a fixed knife top part 21 and bending parts 22 which are bent downwards from the left side and the right side of the fixed knife top part 21 along the left side supporting wall 12 and the right side supporting wall 12, the bending parts 22 are attached to the outer sides of the left side supporting wall 12 and the right side supporting wall 12 and are fixed, the fixed knife top part 21 is tightened between the left side supporting wall 12 and the right side supporting wall 12, a plurality of hair inlet holes 23 which simultaneously penetrate through the fixed knife top part 21 and the bending parts 22 are formed in the left side and/or the right side of the fixed knife 2 along the front-back direction, fixed knife teeth 24 are formed between every two adjacent hair inlet holes 23, and hair inlet grooves 13 in at least one of the side supporting walls 12 correspond to the hair inlet holes 23 in the corresponding side one to one. Preferably, the left and right side supporting walls 12 are provided with hair inlet grooves 13, the left and right sides of the fixed knife 2 are provided with hair inlet holes 23, and the hair inlet grooves 13 and the hair inlet holes 23 on the two sides are respectively in one-to-one correspondence.

Wherein, the rack bar 14 is used for supporting the fixed cutter teeth 24, the short rack bar 15 is separated from the fixed cutter top 21, and an avoiding space 10 is formed between the upper end of the short rack bar 15 and the fixed cutter top 21.

In the fixed cutter structure, a fixed cutter and a fixed cutter support are arranged in a split manner, the fixed cutter support 1 has rigidity, the fixed cutter 2 has flexibility, the top 21 of the fixed cutter is tightened by the left and right supporting walls 12 to form a cutting working surface, and the fixed cutter 2 does not need to be supported by the rigidity of the fixed cutter, so that the fixed cutter structure can be very thin and the hair shaving cleanliness is improved; and set up down the short rack bar of a take the altitude through on the stationary knife support to form the space of dodging behind the installation stationary knife, so that the partial cutting tooth that supplies to move the sword can be closer to the side reason 2a of stationary knife structure more, reduces and moves the sword and do not have the region of cutting function between the side reason 2a of stationary knife structure, improves the performance of shaving.

Further, as shown in fig. 3, 4, 6 and 7, a part of the rack bar 14 remains, and a part of the rack bar 14 sinks to form a short rack bar 15, the top of the rack bar 14 is supported on the left side or the right side of the fixed cutter top 21, and the outer side surfaces of the rack bar 14 and the short rack bar 15 are supported on the inner wall of the fixed cutter teeth 24 on the bent portion 22, so that the fixed cutter teeth 24 at the avoiding space 10 have better structural strength. Of course, all the rack bars 14 may be sunk to form the short rack bar 15, the side supporting walls 12 support the top of the fixed cutter through the front and rear ends, and the outer side surface of the short rack bar 15 is supported on the inner wall of the fixed cutter teeth 24 on the bending part 22, so as to form a wider avoidance space 10 in the front and rear direction, thereby forming a continuous cutting area close to the side edge 2a of the fixed cutter structure in cooperation with the movable cutter, and the illustration is omitted.

Further, as shown in fig. 1 and fig. 2, the hair inlet grooves 13 and the hair inlet holes 23 in the same row are respectively and uniformly arranged, and in the same row of the rack bars 14, three or more short rack bars 15 formed by sinking at each position are continuously arranged, so that a more sufficient space is provided for the part of the cutting teeth on the movable knife, which is close to the side edge 2a of the fixed knife structure, to reciprocate back and forth, so that the movement range of the part of the cutting teeth can better cover more than two hair inlet holes 23, and the cutting performance is improved.

Further, as shown in fig. 2, a plurality of short toothed bars 15 formed by sinking are spaced in the middle of the same row of toothed bars 14, and a toothed bar 14 without sinking is spaced between two adjacent short toothed bars 15, so that the range of the avoidance space 10 is increased while the strength support provided by the toothed bars 14 is facilitated.

Further, as shown in fig. 3, the sinking height h of the short rack bar 15 is between 0.15mm and 0.8mm, preferably between 0.25mm and 0.5mm, and the provided avoidance space 10 is beneficial to the movable knife to have a certain material thickness to ensure the structural strength of the movable knife, and the other is also better supported by the fixed knife teeth 24 at the avoidance space 10 through the short rack bar 15.

Regarding the stationary knife structure, another embodiment is shown in fig. 8 to 9:

the fixed cutter support 1 comprises a fixed cutter base frame 11, a left side supporting wall 12 and a right side supporting wall 12, wherein the left side supporting wall 12 and the right side supporting wall 12 extend upwards from the left end and the right end of the fixed cutter base frame 11 in an inclined mode, the fixed cutter 2 comprises a fixed cutter top portion 21 and bending portions 22 which are bent downwards from the left side of the fixed cutter top portion 21 and the right side of the fixed cutter top portion 12, the bending portions 22 are attached to the outer sides of the left side supporting wall 12 and the right side supporting wall 12 and are fixed, the fixed cutter top portion 21 is tightened between the left side supporting wall 12 and the right side supporting wall 12, the fixed cutter 2 is provided with a plurality of feeding holes 23 which simultaneously penetrate through the fixed cutter top portion 21 and the bending portions 22 on the left side and/or the right side and in the front-back direction, fixed cutter teeth 24 are formed between two adjacent feeding holes 23, a plurality of notches 16 are formed on the side supporting wall 12 corresponding to the feeding holes 23, each notch 16 corresponds to more than two continuous feeding holes 23, and an avoiding space 10 is formed between the notch 16 and the fixed cutter top portion 21.

According to the fixed knife structure, the gap 16 with the width not smaller than more than two upper pores 23 is formed in the fixed knife support, so that an avoiding space is formed after the fixed knife is installed, partial cutting teeth of the movable knife can be closer to the side edge 2a of the fixed knife structure, the area between the movable knife and the side edge 2a of the fixed knife structure without a cutting function is reduced, and the shaving performance is improved.

Preferably, as shown in fig. 9, more than two notches 16 are formed on the side support wall 12 on the same side, a rack bar 14 is formed between two adjacent notches 16, and the rack bar 14 corresponds to the fixed cutter teeth 24 at the position and is used for supporting the fixed cutter teeth 24. Of course, there may be only one notch 16 of each side supporting wall 12, and the side supporting wall 12 supports the fixed knife through the front and rear ends to facilitate forming a wider avoidance space 10 in the front and rear direction, thereby facilitating forming a continuous cutting area close to the side edge 2a of the fixed knife structure in cooperation with the movable knife, and the illustration is omitted here.

A cutter head using the fixed cutter structure of the reciprocating electric shaver as shown in fig. 1 to 9:

including aforementioned stationary knife structure, the inside of stationary knife structure is equipped with moves sword 3, stationary knife 2 cooperatees with moving sword 3 and constitutes cutting assembly, it is equipped with cutting tooth 31 to move one side that corresponds pore 23 on the sword 3, and wherein a plurality of cutting teeth 31 correspond and dodge space 10 and extend to the outside and form the long cutting tooth 32 that can dodge space 10 corresponding within range front and back reciprocating motion, move and be connected with the transmission part that is used for being connected with the power device of electric shaver on the sword 3.

More specifically, the transmission component comprises a movable knife bracket 5 fixedly connected with the movable knife 3 and a driving seat 6 connected with a power device of the electric shaver, the movable knife bracket 5 is fixedly connected with the driving seat 6, and a guide rail 7 for guiding the movable knife bracket 5 to reciprocate back and forth is integrally formed on the fixed knife bracket 1.

Furthermore, the fixed knife structure is internally provided with an elastic part 4 which is used for elastically pressing the movable knife 3 on the fixed knife 2, so that the shearing sharpness and the stability of the movable knife 3 and the fixed knife 2 are improved.

Further, the thickness of the material of the moving blade 3 is between 0.10mm and 0.25mm, preferably 0.15mm to 0.20mm thick steel. The bottom of the long cutting teeth 32 of the movable knife 3 is at least 0.05mm of clearance t, namely the height of the clearance is at least 0.05mm larger than the thickness of the movable knife 3.

This tool bit is through setting up dodging space 10 on the stationary knife structure, and set up partial long cutting tooth 32 to the outside extension on moving the sword, in the reciprocating motion back and forth that moves the sword, long cutting tooth 32 is dodging the reciprocal activity of within range that space 10 corresponds, cut the hair with the cooperation of stationary knife tooth 24, because long cutting tooth 32 can be close to the side reason 2a of stationary knife structure more, the region that does not have cutting function has been reduced, the cutting region that long cutting tooth 32 corresponds is close to both ends about this tool bit, can get into the cutting fast during shaving, the efficiency of the improvement shaving and user's use experience. In addition, when the user supports the skin slightly tilting the cutter head to move by the left end or the right end of the cutter head during cutting, if a cutting area corresponding to the long cutting tooth 32 exists, the distance between the cutting area and the left end or the right end of the cutter head is shorter, and the cutter head is usually slightly pressed against the skin during use, so that the cutting area is more easily attached to the skin or moves close to the skin instead of tilting the skin for a certain distance, and the length of the hair root residue is reduced during cutting long hair, and the shaving cleanliness is improved; the other is that when cutting the short hair, the short hair can enter the cutting area to cut, thereby avoiding the phenomenon that the beard can not be cut.

As shown in fig. 1, 6 and 7, the long cutting teeth 32 extend along the top portion 21 of the fixed blade, and the outer ends thereof are located at the inner side of the turning connection between the top portion 21 of the fixed blade and the bending portion 22.

As shown in fig. 10, the embodiment is different from the embodiment shown in fig. 6 in that the long cutting teeth 32 are bent teeth, which extend outward along the top portion 21 of the fixed blade, and extend to the bent portion 22 after being bent at the bent connection portion of the top portion 21 and the bent portion 22, so that the cutting area corresponding to the long cutting teeth 32 extends from the top portion 21 of the fixed blade to the bent portion 22 through the bent connection portion of the top portion 21 and the bent portion 22, and the cutting area can contact with the hair for cutting more quickly during shaving, thereby further improving the shaving efficiency. Moreover, when the skin is supported by the left end or the right end of the cutter head, even if the top portion 21 of the fixed cutter is completely tilted to a large angle with the skin, for example, to be close to a vertical state, the hair can be effectively cut through the turning connection part of the top portion 21 of the fixed cutter and the bending part 22 and/or the cutting position corresponding to the bending part 22, so that a user can shave the skin through the fixed cutter teeth 24 for cutting, and the application and performance of the cutter head are enriched.

Claims (10)

1. The utility model provides a stationary knife structure of reciprocating type electric shaver which characterized in that: comprises a rigid fixed knife bracket (1) and a fixed knife (2) made of flexible metal sheets, the fixed cutter support (1) comprises a fixed cutter underframe (11), a left side supporting wall and a right side supporting wall (12) which extend upwards from the left end and the right end of the fixed cutter underframe (11), the fixed cutter (2) comprises a fixed cutter top part (21) and bending parts (22) which are bent downwards from the left side and the right side of the fixed cutter top part (21), the bending part (22) is attached and fixed on the outer sides of the left and right side supporting walls (12), and the top part (21) of the fixed knife is tightened between the left and the right side supporting walls (12), the fixed knife (2) is provided with a plurality of feeding holes (23) which simultaneously penetrate through the top part (21) and the bending part (22) of the fixed knife on the left side and/or the right side along the front-back direction, a fixed knife tooth (24) is formed between two adjacent feeding holes (23), a plurality of hair inlet grooves (13) which are in one-to-one correspondence with the hair inlet holes (23) are formed in at least one of the side supporting walls (12) along the front-back direction, a rack bar (14) capable of supporting a fixed cutter tooth (24) is formed between every two adjacent hair inlet grooves (13), at least one rack bar (14) sinks down and shortens to form a short rack bar (15) to be separated from the top (21) of the fixed cutter, and an avoidance space (10) is formed between the upper end of the short toothed bar (15) and the top part (21) of the fixed cutter.

2. The stationary blade structure of a reciprocating electric shaver as set forth in claim 1, wherein: part of the toothed bar (14) is retained, while part of the toothed bar (14) sinks to form a short toothed bar (15), the top of the toothed bar (14) is supported on the left side or the right side of the top of the fixed cutter (21), and the outer side surfaces of the toothed bar (14) and the short toothed bar (15) are supported on the inner wall of the fixed cutter teeth (24) on the bent part (22).

3. The utility model provides a stationary knife structure of reciprocating type electric shaver which characterized in that: the fixed cutter support comprises a rigid fixed cutter support (1) and a fixed cutter (2) made of a flexible metal sheet, wherein the fixed cutter support (1) comprises a fixed cutter bottom frame (11) and left and right side supporting walls (12) extending obliquely upwards from the left end and the right end of the fixed cutter bottom frame (11), the fixed cutter (2) comprises a fixed cutter top portion (21) and bending portions (22) bending downwards from the left side and the right side of the fixed cutter top portion (21), the bending portions (22) are attached to the outer sides of the left and right side supporting walls (12) and fixed, the fixed cutter top portion (21) is tightened between the left and right side supporting walls (12), the fixed cutter (2) is provided with a plurality of feeding holes (23) penetrating through the fixed cutter top portion (21) and the bending portions (22) simultaneously in the left side and/or the right side and in the front-back direction, a fixed cutter tooth (24) is formed between two adjacent feeding holes (23), a plurality of notches (16) are formed on the side supporting walls (12) corresponding to one side of the feeding holes (23), each notch (16) corresponds to two continuous feeding holes (23), and the fixed cutter top portions (16) are formed between the fixed cutter (10) and the fixed cutter.

4. A cutter head using the stationary blade structure of a reciprocating electric shaver according to any one of claims 1 to 3, characterized in that: including the stationary knife structure, the inside of stationary knife structure is equipped with moves sword (3), stationary knife (2) with move sword (3) and cooperate and constitute cutting assembly, it is equipped with cutting tooth (31) to move one side that corresponds into pore (23) on sword (3), wherein a plurality of cutting teeth (31) correspond and dodge space (10) outside extension formation can dodge long cutting tooth (32) of reciprocating motion around the within range that space (10) correspond, move and be connected with the drive disk assembly that is used for being connected with electric shaver's power device on sword (3).

5. The cutter head of claim 4 wherein: and an elastic part (4) for elastically pushing the movable knife (3) against the fixed knife (2) is arranged in the fixed knife structure.

6. The cutter head of claim 4 wherein: the long cutting teeth (32) are bent teeth, extend outwards along the top part (21) of the fixed cutter, are correspondingly bent at the bending connection part of the top part (21) of the fixed cutter and the bending part (22), and then are extended to the bending part (22), and the corresponding fixed cutter teeth (24) and the long cutting teeth (32) jointly form a cutting area connected from the top part (21) of the fixed cutter to the bending part (22).

7. A stationary blade holder (1) for a reciprocating electric shaver, characterized in that: the fixed cutter comprises a fixed cutter base frame (11), a left side supporting wall and a right side supporting wall (12) which extend out of the left end and the right end of the fixed cutter base frame (11) in an inclined mode, a plurality of hair feeding grooves (13) are formed in at least one of the side supporting walls (12) in the front-back direction, a toothed bar (14) is formed between every two adjacent hair feeding grooves (13), and at least one toothed bar (14) sinks to be shortened to form a short toothed bar (15).

8. Stationary blade holder (1) for a reciprocating electric shaver according to claim 7, characterized in that: the sinking height h of the short toothed bar (15) is between 0.15mm and 0.8mm or between 0.25mm and 0.5 mm.

9. Stationary blade holder (1) for a reciprocating electric shaver according to claim 7, characterized in that: the hair inlet grooves (13) in the same row are uniformly arranged, and in the gear rods (14) in the same row, more than three short gear rods (15) formed by sinking at each position are continuous.

10. Stationary blade holder (1) for a reciprocating electric shaver according to claim 9, characterized in that: a plurality of short toothed bars (15) formed by sinking are arranged in the middle of the same row of toothed bars (14), and a toothed bar (14) which does not sink is arranged between every two adjacent short toothed bars (15).

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