CN217801838U - Tool bit structure of reciprocating shaver - Google Patents

Abstract

This scheme provides a tool bit structure of reciprocating type razor, including outer quiet sword, outer quiet sword including buckle integrated into one piece horizontal plane and along the horizontal plane around the both sides vertical plane that long limit downwardly extending formed respectively, the horizontal plane on open in the middle of have a plurality of close skin cutting district that advance palpus slotted hole, set up in two left and right ends and the both ends supporting area that adjoins close skin cutting district separately, form confined self-supporting connection surrounding ring by both ends supporting area and both sides vertical plane jointly on outer quiet sword, self-supporting connection surrounding ring encloses close skin cutting district in the centre, between outer quiet sword and the sword partly correspond to the position that the close skin cutting district was kept away from in self-supporting connection surrounding ring outer lane still be equipped with the interior retaining frame that the self-supporting connection surrounding ring shape was fit, form double-deck reinforcing support in outer lane of outer quiet sword. The shaver unit has high strength, long service life and can shave long beard or curled beard and short beard at one time, and the thickness of the static cutter can be 2-4.5 silks.

Description

Tool bit structure of reciprocating shaver

Technical Field

The utility model relates to a razor, especially a tool bit structure of reciprocating type razor.

Background

The traditional shaver has a lamellar outer cutter, a plurality of small holes in circular or other shapes are formed in the outer cutter, an inner cutter is installed below the outer cutter, the top surface of an inner cutter unit is arc-shaped, the outer cutter is bent into an arch shape along the arc-shaped inner cutter, and the inner cutter is driven by an internal motor through a transmission device to perform cutting action. When the shaver is attached to the face, beard can be quickly cut off by the inner cutter after the beard is extended into the shaver from the small hole of the outer cutter, so that the aim of shaving is fulfilled. The small hole is easy to insert for short beard, but some curled beard or longer beard are difficult to insert into the small hole, so that the long beard is often cut short before shaving, or the long beard which is not shaved is cut short after shaving, so that the shaver has the defect of difficult long beard shaving, and the effect of shaving the long beard and the short beard as much as possible at one time cannot be achieved. In order to realize the entry of long beard, a strip-shaped thin-plate outer cutter is often adopted, long slotted holes are formed in the outer cutter and are transversely distributed on the head of the shaver, the shaver can shave the long beard or curled beard completely at one time, moreover, the transversely distributed outer cutter enlarges the contact surface with the face, the outer cutter is slightly inclined in use but does not need to rotate, the shaving range can be further enlarged, and the use and the operation are convenient. However, because the thickness of the blade edge of the outer cutter is required to be thicker due to the supporting force and the strength, the outer cutter is generally 0.15-0.3 mm thick, short hairs cannot be shaved off, and the hairs cannot be completely shaved off, so the outer cutter cannot be used alone, the outer cutter must be matched with the cutter head (used for shaving the short hairs) of the thin sheet arched outer cutter to be used for shaving off the hairs completely, and the hairs are frequently shaved off for multiple times at the same position to be cleaned.

Disclosure of Invention

The utility model provides a high intensity non-deformable, longe-lived, compact structure, can reach once shaves the long beard or the reciprocating type razor's of curled beard and short palpus tool bit structure.

In order to solve the technical problem, the utility model discloses a following technical scheme: a cutter head structure of a reciprocating shaver comprises a cutter head shell, one or more shaver unit components arranged on the cutter head shell, wherein the shaver unit components comprise a movable cutter frame which is arranged in the cutter head shell and is driven by a driving shaft to do transverse reciprocating motion, a movable cutter which is arranged on the movable cutter frame and can do reciprocating motion along the length direction of the movable cutter frame in the using process, and an outer stationary cutter which is bent by a thin plate to be in a long strip shape and is transversely arranged above the movable cutter, the outer stationary cutter comprises a transverse plane which is bent into an integral forming and two side vertical planes which are respectively formed by downwards extending the front long edge and the rear long edge of the transverse plane, the skin-friendly cutting area with a plurality of beard inlet long slotted holes in the middle and two end supporting areas which are respectively arranged at the left end and the right end of the outer static knife and are adjacent to the skin-friendly cutting area are arranged on the transverse surface, a closed self-supporting connecting surrounding ring is formed by the two end supporting areas and two side vertical surfaces together on the outer static knife, the skin-friendly cutting area is surrounded in the middle by the self-supporting connecting surrounding ring, an inner holding frame matched with the self-supporting connecting surrounding ring in a shape is also arranged at the position between the outer static knife and the movable knife, which corresponds to the outer ring of the self-supporting connecting surrounding ring and is far away from the skin-friendly cutting area, the inner holding frame is directly attached to the inner surface of the outer static knife or is fixedly connected to the shell of the knife up and down through a connecting structure, and thus a double-layer reinforced support is formed on the outer ring of the outer static knife.

As an improvement: the shaver unit component comprises at least one side cutter unit component which is arranged close to the inner side wall of the shell, the hair-feeding long slotted holes on the skin-friendly cutting area of the outer static cutter of the side cutter unit component are transversely arranged in multiple rows, a separation belt is arranged between the hair-feeding long slotted hole which is most close to the inner side wall of the shell and the adjacent row of hair-feeding long slotted holes, and the adjacent two rows are arranged in a non-through mode with belt intervals by the separation belt.

As an improvement: the long beard leading-in grooves are formed in the junction of the transverse surface of the outer static cutter and the side vertical surface, namely the long beard leading-in grooves are formed by connecting horizontal cut portions located on the transverse surface and vertical cut portions located on the side vertical surface, the horizontal cut portions and the vertical cut portions form an L shape, the horizontal cut portions and the vertical cut portions are V-shaped, trapezoidal, semi-elliptical or semi-circular, and openings of the horizontal cut portions and the vertical cut portions are in butt joint.

As an improvement: the long beard leading-in grooves are transversely and uniformly distributed along the length direction of the outer stationary knife.

As an improvement: the spacer belt is a sinking positioning groove, the sinking positioning groove extends along the length direction of the transverse surface and transversely penetrates the supporting areas at the left and right ends respectively, and limiting parts matched with the sinking positioning groove are arranged at the left and right ends of the cutter head shell respectively.

As an improvement: the inner holding frame comprises two side vertical frame surfaces which extend transversely corresponding to the two side vertical surfaces and two cross frame surfaces which are respectively connected with the end parts of the two side vertical frame surfaces; the cross section of the end part of the inner holding frame is M or door-shaped, namely the front end and the rear end of the cross frame surface are respectively and integrally connected with the end parts of the upper top edges of the two vertical frame surfaces; or the cross section of the end part of the inner holding frame is U-shaped, namely the front end and the rear end of the cross frame surface are respectively and integrally connected with the end parts of the lower top edges of the two vertical frame surfaces; or the inner holding frame is in a closed fence shape, namely the front end and the rear end of the frame spanning surface are respectively and integrally connected with the left vertical edge and the right vertical edge of the two vertical frame surfaces.

As an improvement: the shaver unit component comprises at least one side cutter unit component which is installed by the inner side wall of the shell, a plurality of beard feeding long slotted holes on the skin-friendly cutting area of the outer static cutter of the side cutter unit component are transversely arranged in a single row, the deepest positions of the beard feeding long slotted holes facing inwards are far away from the junction of the transverse plane and the side vertical plane, and the beard feeding long slotted holes face inwards and do not penetrate through the transverse plane.

The utility model provides a beneficial effect is: because the arrangement of the inner holding frame is adopted, the double-layer reinforced support is formed on the outer ring of the outer static knife, the influence degree of the thickness support of the self-supporting connecting surrounding ring on a skin-friendly cutting area and even the whole knife is greatly reduced, even the size of the self-supporting can not be considered, the outer static knife is realized by the inner holding frame in the aspects of strength and support, so that the outer static knife, particularly the knife edge, is thinner and sharper than the prior art, the outer static knife can be thinner to 2-5 wires or even thinner, the integral processing of the outer static knife is more convenient, a plurality of local special processing is reduced, the deformation caused by local processing or special processing is effectively avoided, the symmetry is high, and the vertical surface of the outer static knife, particularly the two sides of the outer static knife, has very good vertical conductivity and no oblique torsion in the processing and use processes; to connecting the overall arrangement setting, can need the fluting isotructure setting with the non-cutting edge to move to interior keep the frame on, avoided the problem that destroys its fastness at the both ends support area fluting of ultra-thin outer quiet sword, keep the wholeness of outer quiet sword, and then improve ultra-thin type and fastness. The long slotted hole in the skin-friendly cutting area on the outer static cutter can conveniently extend the curled long beard into the long slotted hole to shave the long beard or the curled beard as much as possible at one time, and the blade is thin enough to shave the short beard as much as possible at the same time, so that the effect of shaving the long beard or the curled beard and the short beard as much as possible at one time is really achieved, the transversely distributed outer static cutters enlarge the contact surface with the face, the use and the operation are more convenient, the integral strength is improved, the outer static cutters are favorably assembled on the cutter head shell, the effects of no deformation after long-term use, more favorably enabling the outer static cutters to cling to the face and really shaving as much as possible at one time are achieved, and frequent and multiple times of shaving at the same position are not needed.

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of a cutter head structure of a reciprocating shaver according to the present invention.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a schematic structural view of a first embodiment of the outer stationary blade and the inner holding frame in fig. 1.

Fig. 4 is a structural diagram of a second embodiment of the inner holding frame.

FIG. 5 is a schematic structural diagram of a third embodiment of the inner holding frame.

Detailed Description

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, it should be understood that the terms "connected," "connected," and "fixed" used in the present invention should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral body; the connection can be mechanical connection or welding connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

As shown in fig. 1, fig. 2 and fig. 3, the first embodiment of the blade head structure of the reciprocating razor of the present invention is a blade head structure of a reciprocating razor, comprising a blade head housing 1 and two razor unit assemblies mounted on the blade head housing, wherein the razor unit assemblies comprise a movable blade holder 2 mounted in the blade head housing 1 and driven by a driving shaft to make a transverse reciprocating motion, a movable blade 3 mounted on the movable blade holder 2 and capable of making a reciprocating motion along the length direction thereof during use, and an M-shaped stationary blade bent from a thin plate into a strip shape and transversely disposed above the movable blade 3, wherein the stationary blade 4 comprises a transverse surface 41 formed by bending integrally and two vertical surfaces 42 extending downwards along the front and rear long edges of the transverse surface 41, the transverse surface 41 is provided with a skin-friendly cutting area 411 having a plurality of inlet long slots, two end supporting areas 412 respectively disposed at the left and right ends and adjoining the skin-friendly cutting area, the two end supporting areas 412 and the two vertical surfaces 42 together form a closed self-supporting ring, the self-supporting ring connects the outer ring and the outer ring 4 and the outer ring is provided with a supporting ring holder 5 for supporting the outer ring and the outer ring for supporting and keeping the outer ring from the outer ring and the outer ring for supporting. In this embodiment, the inner holding frame 5 is fixed to the cutter head housing 1 vertically through the connecting structure and the outer stationary blade 4, and the inner holding frame 5 is hidden type or can be extended type. Of course, the inner holding frame 5 can be attached directly to the inner surface of the outer stationary blade 4, ensuring both a bearing force and no volume or area burden. The thickness of the inner holding frame 5 may be determined according to the bearing force requirements and the material of the inner holding frame, and the inner holding frame 5 may be made of a wear-resistant hard metal material with damping for noise reduction. Because of the inner holding frame 5, the rigidity outer static knife can be as thin as 2-4.5 wires in practical experiments, the limitation that the rigidity outer static knife can only be more than 5 wires is broken, and the outer static knife can not be obliquely twisted and is high in holding during processing and use. Interior retaining frame 5 include with both sides riser 42 correspond horizontal extension's both sides riser 51, connect the two of both sides riser 51 tip respectively and stride the frame 52, 5 end section of the interior retaining frame of this embodiment is the M shape corresponding to the outer quiet sword tip of M shape, stride frame 52 front and back both ends respectively the top end on two risers 51 promptly, 5 end section of interior retaining frame can set up into door shape for the outer quiet sword of door shape, both sides riser 51 can be fine guarantee outer quiet sword both sides riser 42 planarization, avoid the skew torsion, improve the connection steadiness of outer quiet sword on the shell simultaneously, greatly reduce working vibration and noise, improve the skin of shaving. Stride frame face 52 and can guarantee two mullion face position stability, the frame face 52 still can the function expansion of striding of this embodiment simultaneously is used as the joining region, is about to the non-cutting edge and needs structure settings such as fluting to move to interior holding frame on to guarantee the integrality in both ends support area of ultra-thin quiet sword, improve firmness and intensity.

The shaver unit component comprises at least one side cutter unit component which is arranged close to the inner side wall of the shell, long beard feeding slotted holes in the skin-friendly cutting area of the outer static cutter of the side cutter unit component are transversely arranged in two rows, a spacer tape 8 is arranged between the long beard feeding slotted hole which is most close to the inner side wall of the shell and the long beard feeding slotted hole which is adjacent to the long beard feeding slotted hole, and the spacer tape 8 enables the adjacent two rows to be arranged in a non-through mode with a non-through belt spacing. The long beard inlet slots which are positioned on one side of the isolation belt 8 and are closest to the inner side wall of the shell are long beard inlet slots 6, the long beard inlet slots which are positioned on the other side of the isolation belt 8 are used for shaving short beard, and the slot shape and the arrangement can be set according to the requirement, thereby improving the shaving cleanliness and the trimming efficiency, and trimming at one time is clean. The separation belt 8 effectively prevents long hair from entering the short hair shaving area, solves the problem of unclean hair pulling and shaving at one time, and can further improve the touch feeling of the skin surface so as to improve the shaving feeling. Ensuring accurate falling beard. The distance belt 8 of this implementation is the constant head tank that sinks, the constant head tank that sinks extend and control and traverse both ends supporting area 412 respectively along horizontal 41 length direction, the head casing and interior retaining frame 5 all be equipped with respectively with the spacing portion of the constant head tank adaptation that sinks on both ends about to make the structure more compact, connect more closely. The separation band is convenient to assemble, the outer static knife does not need to be calibrated in the center, the separation band is not easy to shift in the using process, the noise is low, and the problems that the hair needs to be torn by a clamp and the like are effectively solved. The long hair guide groove 6 of the embodiment is arranged at the junction of the transverse surface 41 and the side vertical surface 42 of the outer static blade 4, namely the long hair guide groove 6 is formed by connecting a horizontal notch 61 positioned on the transverse surface 41 and a vertical notch 62 positioned on the side vertical surface 42, the horizontal notch 61 and the vertical notch 62 form an L shape, the horizontal notch 61 and the vertical notch 62 are V-shaped, trapezoidal, semi-elliptical or semicircular, the openings of the horizontal notch 61 and the vertical notch 62 are in butt joint, and the long hair guide groove with a large opening is favorable for improving the shaving efficiency, meanwhile, the long hair guide grooves 6 are transversely and uniformly distributed along the length direction of the outer static blade, and have a hair combing effect when in use, and the hair guide entering rate and the shaving efficiency are more effectively improved.

Of course, the number of rows of the long beard inlet slots on the skin-friendly cutting area of the outer static cutter is adjusted according to the number of the shaver unit assemblies, and only the long beard inlet slot on the outermost long beard inlet slot is required to be transversely arranged, and the arrangement and the slot shape of the long slot on the middle row can be adjusted according to requirements, for example, the long beard inlet slots 6 (not marked in the figure) are transversely arranged on the skin-friendly cutting area of the outer static cutter of the side cutter unit assembly in a single row. The deepest position of the inward long slotted holes transversely arranged in a single row is far away from the junction of the transverse surface 41 and the side vertical surface 42, namely, the inward long slotted holes do not penetrate through the transverse surface 41. The long hair inlet grooves 6 with the double notches can also be the long hair inlet grooves 6 with the single row of transversely arranged long hair inlet grooves, namely, the long hair inlet grooves 6 are formed by connecting horizontal notch parts 61 positioned on the transverse surfaces 41 and vertical notch parts 62 positioned on the side vertical surfaces 42, the horizontal notch parts 61 and the vertical notch parts 62 form an L shape, the horizontal notch parts 61 and the vertical notch parts 62 are V-shaped, trapezoidal, semi-elliptical or semicircular, and the openings of the horizontal notch parts 61 and the vertical notch parts 62 are butted. Therefore, when the long hair trimmer is used, long hair can be easily stretched into the long hair trimmer, the hair clamping phenomenon is effectively avoided, the long beard and the short beard can be cut or eliminated through the movable knife, and therefore the purpose of cutting or trimming long hair and short hair can be achieved.

The connecting position of the inner holding frame 5 between the two ends of the frame surface 52 and the two vertical frame surfaces 51 can be changed according to the space requirement of the structural design or the further strengthening of the supporting force, and the inner holding frame can also be designed into the second embodiment shown in fig. 4 or the third embodiment shown in fig. 5. The cross frame surface 52 is fixed on the two vertical frame surfaces 51, and the positions of the cross frame surface are different, so that the supporting and maintaining directions and the stability are slightly different.

In the second embodiment of the inner holding frame shown in fig. 4, the cross section of the end of the inner holding frame is U-shaped, that is, the front and rear ends of the cross frame surface 52 are integrally connected to the lower top edge ends of the two vertical frame surfaces 51, respectively, and the inner holding frame is arranged in a hollow manner, which has the same supporting effect as the first embodiment on the outer stationary blade.

In the third embodiment of the inner holding frame shown in fig. 5, the inner holding frame is in the shape of a closed rail, that is, the front and rear ends of the cross frame surface 52 are integrally connected to the left and right vertical edges of the two vertical frame surfaces 51, respectively. The inner holder frame of this embodiment provides a higher level of support for the outer stationary blade both side vertical surfaces 42 than the inner holder frames of the first and second embodiments, and the upper and lower positions between the both side vertical surfaces 42 are defined by the cross frame surface 52 after assembly, and the both side vertical surfaces will not bounce even if they are thin, and have a stable support, and the disadvantage is that they need to be precisely matched and are incompatible.

If the space or structure allows, it is needless to say that the inner holding frame straddling the frame surface 52 may be provided at the positions of the three or two embodiments, so that the supporting effect is higher.

Although the present invention has been described with reference to the specific embodiments, it should be understood that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims (10)

1. A cutter head structure of a reciprocating shaver comprising a cutter head housing (1), one or more shaver unit assemblies mounted on the cutter head housing, characterized in that: the shaver unit assembly comprises a movable knife rest (2) which is arranged in a knife head shell (1) and is driven by a driving shaft to do transverse reciprocating motion, a movable knife (3) which is arranged on the movable knife rest (2) and can do reciprocating motion along the length direction in the using process, and an outer static knife (4) which is bent by a thin plate to be in a strip shape and is transversely arranged above the movable knife (3), wherein the outer static knife (4) comprises a bent and integrally-formed transverse surface (41) and two side vertical surfaces (42) which are respectively formed by downwards extending the front and rear long edges of the transverse surface (41), the transverse surface (41) is provided with a skin-friendly cutting area (411) with a plurality of beard inlet long slotted holes in the middle, two end supporting areas (412) which are respectively arranged at two left sides and are adjacent to the skin-friendly cutting area, the outer static knife (4) is provided with a closed self-supporting connecting surrounding ring which is jointly formed by the two end supporting areas (412) and the two side vertical surfaces (42), the self-supporting connecting surrounding ring surrounds the skin-friendly cutting area (411) in the middle, the outer static knife (4) and the outer static knife (3) is provided with a self-supporting connecting ring which is arranged at the outer ring which is corresponding to the outer ring and is connected with the outer ring (5), and the outer ring which is directly connected with the outer static knife frame (5) to form a reinforced structure which is arranged at the outer ring or the outer ring which is arranged at the outer ring and is arranged at the outer ring which is arranged at the inner surface of the outer static knife shell, and is connected with the outer static knife shell, and the outer ring (5).

2. The cutter head structure of a reciprocating shaver as set forth in claim 1, wherein: the shaver unit component comprises at least one side cutter unit component which is installed by the inner side wall of the outer shell, beard feeding long slotted holes in the skin-friendly cutting area of the outer static cutter of the side cutter unit component are transversely arranged in multiple rows, a spacer tape (8) is arranged between the beard feeding long slotted hole which is most close to the inner side wall of the outer shell and the beard feeding long slotted hole which is adjacent to the inner side wall of the outer shell, and the two adjacent rows of the spacer tape are arranged in a non-through mode with a tape interval.

3. The cutter head structure of a reciprocating shaver as set forth in claim 2, wherein: the long beard inlet grooves are long beard inlet grooves (6) which are arranged at the junction of the transverse surface (41) and the side vertical surface (42) of the outer fixed blade (4), namely the long beard inlet grooves (6) are formed by connecting horizontal cut-out portions (61) on the transverse surface (41) and vertical cut-out portions (62) on the side vertical surface (42), the horizontal cut-out portions (61) and the vertical cut-out portions (62) form an L shape, the horizontal cut-out portions (61) and the vertical cut-out portions (62) are V-shaped, trapezoidal, semi-elliptical or semicircular, and openings of the horizontal cut-out portions (61) and the vertical cut-out portions (62) are in butt joint.

4. A cutter head structure of a reciprocating shaver as claimed in claim 3, wherein: the long beard leading-in grooves (6) are transversely and uniformly distributed along the length direction of the outer stationary knife.

5. A cutter head structure of a reciprocating shaver as claimed in claim 2, 3 or 4, wherein: the spacer belt (8) is a sinking positioning groove, the sinking positioning groove extends along the length direction of the transverse surface (41) and transversely penetrates through the supporting areas (412) at the left and right ends respectively, and limiting parts matched with the sinking positioning groove are arranged at the left end and the right end of the cutter head shell respectively.

6. A cutter head structure of a reciprocating shaver as claimed in claim 1, 2, 3 or 4, wherein: the inner holding frame (5) comprises two side vertical frame surfaces (51) which extend transversely corresponding to the two side vertical surfaces (42) and two cross frame surfaces (52) which are respectively connected with the end parts of the two side vertical frame surfaces (51); the cross section of the end part of the inner holding frame (5) is M or door-shaped, namely the front end and the rear end of the cross frame surface (52) are respectively and integrally connected with the end parts of the upper top edges of the two vertical frame surfaces (51); or the cross section of the end part of the inner holding frame is U-shaped, namely the front end and the rear end of the cross frame surface (52) are respectively and integrally connected with the end parts of the lower top edges of the two vertical frame surfaces (51); or the inner holding frame is in a closed fence shape, namely the front end and the rear end of the frame spanning surface (52) are respectively and integrally connected with the vertical edges at the left end and the right end of the two vertical frame surfaces (51).

7. The cutter head structure of a reciprocating shaver as set forth in claim 5, wherein: the inner holding frame (5) comprises two side vertical frame surfaces (51) which transversely extend corresponding to the two side vertical surfaces (42) and two cross frame surfaces (52) which are respectively connected with the end parts of the two side vertical frame surfaces (51); the cross section of the end part of the inner holding frame (5) is M or door-shaped, namely the front end and the rear end of the cross frame surface (52) are respectively and integrally connected with the end parts of the upper top edges of the two vertical frame surfaces (51); or the cross section of the end part of the inner holding frame is U-shaped, namely the front end and the rear end of the cross frame surface (52) are respectively and integrally connected with the end parts of the lower top edges of the two vertical frame surfaces (51); or the inner holding frame is in a closed fence shape, namely the front end and the rear end of the cross frame surface (52) are respectively and integrally connected with the vertical edges at the left end and the right end of the two vertical frame surfaces (51).

8. The cutter head structure of a reciprocating shaver as set forth in claim 1, wherein: the shaver unit component comprises at least one side cutter unit component which is installed by the inner side wall of the shell, a plurality of beard feeding long slotted holes on the skin-friendly cutting area of the outer static cutter of the side cutter unit component are transversely arranged in a single row, the deepest positions of the beard feeding long slotted holes facing inwards are far away from the junction of the transverse surface (41) and the side vertical surface (42), and the beard feeding long slotted holes face inwards and do not penetrate through the transverse surface (41).

9. The cutter head structure of a reciprocating shaver as claimed in claim 8, wherein: the long beard inlet grooves are long beard inlet grooves (6) which are transversely arranged in a single row, the long beard inlet grooves are formed in the junction of the transverse surface (41) and the side vertical surface (42) of the outer fixed blade (4), namely the long beard inlet grooves (6) are formed by connecting horizontal cut-out portions (61) located on the transverse surface (41) and vertical cut-out portions (62) located on the side vertical surface (42), the horizontal cut-out portions (61) and the vertical cut-out portions (62) form an L shape, the horizontal cut-out portions (61) and the vertical cut-out portions (62) are V-shaped, trapezoidal, semi-elliptical or semicircular, and openings of the horizontal cut-out portions (61) and the vertical cut-out portions (62) are in butt joint.

10. A head structure for a reciprocating shaver as claimed in claim 8 or 9, wherein: the inner holding frame (5) comprises two side vertical frame surfaces (51) which transversely extend corresponding to the two side vertical surfaces (42) and two cross frame surfaces (52) which are respectively connected with the end parts of the two side vertical frame surfaces (51); the cross section of the end part of the inner holding frame (5) is in an M shape or a door shape, namely the front end and the rear end of the cross frame surface (52) are respectively and integrally connected with the end parts of the upper top edges of the two vertical frame surfaces (51); or the cross section of the end part of the inner holding frame is U-shaped, namely the front end and the rear end of the cross frame surface (52) are respectively and integrally connected with the end parts of the lower top edges of the two vertical frame surfaces (51); or the inner holding frame is in a closed fence shape, namely the front end and the rear end of the cross frame surface (52) are respectively and integrally connected with the vertical edges at the left end and the right end of the two vertical frame surfaces (51).

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