Head structure for a reciprocating shaver

Abstract

The application provides a head structure of a reciprocating shaver, which comprises an outer static cutter, the outer static cutter comprises a bent integrated transverse surface and two side vertical surfaces which respectively extend downward along the front and rear long edges of the transverse surface, the transverse surface is provided with a skin-friendly cutting area which is provided with a plurality of long slot holes for entering hair, and two end supporting areas which are respectively arranged at the left and right ends and are adjacent to the skin-friendly cutting area, a self-supporting connecting ring is formed by the two end supporting areas and the two side vertical surfaces on the outer static cutter, the self-supporting connecting ring surrounds the skin-friendly cutting area in the middle, and an inner retaining frame which is matched with the self-supporting connecting ring is further arranged at a position corresponding to the outer ring of the self-supporting connecting ring and away from the skin-friendly cutting area between the outer static cutter and the moving cutter, and a double-layer reinforced support is formed on the outer ring of the outer static cutter. The shaver unit has high strength and is not easy to deform, has long service life, can achieve one-time removal of long hair or curly hair and short hair, and the outer static cutter can be as thin as 2-4.5 silk.

Description

TECHNICAL FIELD

[0001] The present invention relates to a razor, in particular to a head structure of a reciprocating razor. BACKGROUND

[0002] The conventional razor has a thin sheet-shaped outer blade with a plurality of circular or other shaped small holes, and an inner blade is installed below the outer blade. The top surface of the inner blade unit is arc-shaped, and the outer blade is arched along the arc-shaped curve of the inner blade. The inner blade is driven to cut by an internal motor through a transmission device. When the razor is attached to the face, the beard extends into the razor from the small holes of the outer blade and is quickly cut off by the inner blade to achieve the purpose of shaving. Since the aperture of the small hole is small, it is easy for short beard to extend into the hole, but it is difficult for individual curly beard or long beard to extend into the hole. Therefore, the long beard needs to be cut short before shaving, or the long beard that is not shaved completely needs to be trimmed after shaving. Therefore, this type of razor has the defect of being difficult to shave long beard, and cannot achieve the effect of shaving long beard and short beard at one time. In order to enable long beard to extend into the hole, a long strip-shaped thin plate outer blade is often used, which has a long slot hole on the outer blade and is distributed horizontally on the head of the razor. This type of razor can shave long beard or curly beard at one time, and the horizontally distributed outer blade increases the contact surface with the face. In use, the outer blade only needs to be slightly inclined without rotating, which can further expand the shaving range and is easy to operate. However, since the support force and strength of this type of outer blade require the thickness of the blade to be thick, the thickness is generally 0.15-0.3 mm, which cannot shave short beard and cannot shave the beard completely. Therefore, this type of outer blade cannot be used alone, and must be used together with the head of the thin sheet arched outer blade (used for shaving short beard) to shave the beard completely, and often needs to be shaved several times at the same position to shave completely. SUMMARY

[0003] The present invention provides a head structure of a reciprocating razor with high strength, long service life, compact structure, and the ability to shave long beard or curly beard and short beard at one time.

[0004] To solve the above technical problems, the present application adopts the following technical scheme: a head structure of a reciprocating shaver, comprising a head shell, and one or more shaver unit assemblies installed on the head shell, the shaver unit assembly comprising a moving knife holder installed in the head shell and driven by a driving shaft to move laterally and reciprocatingly, a moving knife installed on the moving knife holder and capable of moving reciprocatingly along the length direction thereof during use, and an outer static knife in the shape of a long strip and arranged laterally above the moving knife by bending a thin plate, the outer static knife comprising a bent and integrally formed horizontal surface and two side vertical surfaces respectively extending downward along the front and rear long edges of the horizontal surface, the horizontal surface being provided with a skin-friendly cutting area with a plurality of long hair inlet grooves opened in the middle, and two end support areas respectively arranged at the left and right ends and adjacent to the skin-friendly cutting area, a self-supporting connecting ring being formed by the two end support areas and the two side vertical surfaces on the outer static knife, the skin-friendly cutting area being enclosed in the middle by the self-supporting connecting ring, and an inner retaining frame being further provided at a position corresponding to the outer ring of the self-supporting connecting ring and away from the skin-friendly cutting area between the outer static knife and the moving knife, the inner retaining frame being directly attached to the inner surface of the outer static knife or being fixed to the head shell through a connecting structure.

[0005] As an improvement, the shaver unit assembly comprises at least one side edge shaver unit assembly installed on the inner side wall of the shell, the long hair inlet grooves on the skin-friendly cutting area of the outer static knife of the side edge shaver unit assembly are arranged in multiple rows in a lateral direction, and a partition is provided between the long hair inlet grooves of the most shell inner side wall row and the adjacent row, the two adjacent rows being arranged in a non-through manner with a spacing.

[0006] As an improvement, the long hair inlet grooves of the most shell inner side wall row are long hair guide grooves, the long hair guide grooves are arranged at the junction of the horizontal surface and the side vertical surface of the outer static knife, i.e., the long hair guide grooves are connected by a horizontal cutout part located on the horizontal surface and a vertical cutout part located on the side vertical surface, the horizontal cutout part and the vertical cutout part form an "L" shape, the horizontal cutout part and the vertical cutout part are in the shape of "V", trapezoid, half-ellipse or half-circle, and the openings of the horizontal cutout part and the vertical cutout part are opposite to each other.

[0007] As an improvement, the long hair guide grooves are uniformly distributed laterally along the length direction of the outer static knife.

[0008] As an improvement, the partition is a sunken positioning groove, the sunken positioning groove extends along the length direction of the horizontal surface and traverses the two end support areas on the left and right respectively, and the head shell is provided with a limiting part on the left and right ends respectively matched with the sunken positioning groove.

[0009] As an improvement, the inner retaining frame comprises two side vertical frame surfaces extending transversely corresponding to the two side vertical surfaces, and two cross frame surfaces respectively connecting the end portions of the two side vertical frame surfaces; the end portion cross section of the inner retaining frame is in M or door shape, that is, the front and rear ends of the cross frame surface are integrally connected to the top edge end portions of the two vertical frame surfaces respectively; or the end portion cross section of the inner retaining frame is in U shape, that is, the front and rear ends of the cross frame surface are integrally connected to the lower top edge end portions of the two vertical frame surfaces respectively; or the inner retaining frame is in closed fence shape, that is, the front and rear ends of the cross frame surface are integrally connected to the left and right end vertical edges of the two vertical frame surfaces respectively.

[0010] As an improvement, the razor unit assembly comprises at least one edge side razor unit assembly mounted on the inner side wall of the shell, and a plurality of long slot holes on the skin-friendly cutting area of the outer static cutter of the edge side razor unit assembly are arranged in a single row transversely, and the deepest position of the long slot hole towards the inside is away from the intersection of the horizontal surface and the side vertical surface, that is, the long slot hole does not penetrate the horizontal surface towards the inside.

[0011] The beneficial effects provided by the present application are: due to the arrangement of the inner retaining frame, a double-layer reinforced support is formed around the outer static cutter, which greatly reduces the influence of the thin support of the self-supporting connecting ring on the skin-friendly cutting area and even the whole razor, and even the size of the self-supporting can be ignored, the strength and support of the outer static cutter are realized by the inner retaining frame, so the outer static cutter, especially the razor blade, is thinner and sharper than the prior art, the outer static cutter can be as thin as 2-5 wires or even thinner, the integrated machining of the outer static cutter is more convenient, many local special machining is reduced, the deformation caused by local machining or special machining is effectively avoided, the uniformity is high, the outer static cutter, especially the two side vertical surfaces of the outer static cutter, is very straight during machining and use, without any skewing or twisting; for the connection layout, the structure setting such as slotting on the non-razor blade can be moved to the inner retaining frame, avoiding the problem of damaging the firmness of the outer static cutter by slotting at the two end support areas of the ultra-thin outer static cutter, maintaining the integrity of the outer static cutter, and further improving the ultra-thin type and firmness. The long slot holes on the skin-friendly cutting area of the outer static cutter can conveniently extend the long hairs into the long slot holes for shaving, and the razor blade is thin enough to shave short hairs at the same time, so as to achieve the effect of shaving long hairs or curly hairs and short hairs at one time, and the transversely distributed outer static cutter increases the contact surface with the face, making the operation more convenient, improving the overall strength, facilitating the assembly of the outer static cutter on the cutter head shell, having the effects of not deforming during long-term use, being more conducive to the outer static cutter to adhere to the face, and being able to shave the beard at one time, without frequent shaving at the same position.

[0012] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structure schematic view of the first embodiment of the cutter head structure of the reciprocating razor provided by the present application.

[0014] Figure 2 is Figure 1 an exploded view.

[0015] Figure 3 is Figure 1 Structure diagram of the first embodiment of the external static knife and the internal holding frame.

[0016] Figure 4 Structure diagram of the second embodiment of the internal holding frame.

[0017] Figure 5 Structure diagram of the third embodiment of the internal holding frame. DETAILED DESCRIPTION

[0018] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, it should be understood that the terms "connected", "connected", "fixed" and the like used in the present application should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or can be integrated; can be mechanically connected, or can be weldedly connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise specified. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0019] As Figure 1 , Figure 2 , Figure 3As shown, the first embodiment of the head structure of the reciprocating shaver of the present application is a head structure of a reciprocating shaver, which comprises a head housing 1, two shaver unit assemblies mounted on the head housing, the shaver unit assembly comprising a moving knife holder 2 mounted in the head housing 1 and driven by a driving shaft to move laterally and reciprocatingly, a moving knife 3 mounted on the moving knife holder 2 and capable of moving reciprocatingly in the length direction during use, and an M-shaped outer static knife formed by bending a thin plate into a long strip and arranged transversely above the moving knife 3, the outer static knife 4 comprising a bent and integrally formed horizontal surface 41 and two side vertical surfaces 42 extending downward along the front and rear long edges of the horizontal surface 41, respectively, the horizontal surface 41 being provided with a skin-friendly cutting area 411 having a plurality of long slot holes opened in the middle, and two end support areas 412 arranged at the left and right ends and adjacent to the skin-friendly cutting area, the outer static knife 4 being provided with a self-supporting connecting ring formed by the two end support areas 412 and the two side vertical surfaces 42, the self-supporting connecting ring surrounding the skin-friendly cutting area 411 in the middle, and the head structure being further provided with an inner retaining frame 5 corresponding to the self-supporting connecting ring and arranged at a position corresponding to the outer circle of the self-supporting connecting ring and away from the skin-friendly cutting area between the outer static knife 4 and the moving knife 3, so as to form a double-layer reinforced support on the outer circle of the outer static knife. The inner retaining frame 5 is fixed to the head housing 1 through a connecting structure and the outer static knife 4, and the inner retaining frame 5 is hidden or can be outwardly expanded. Of course, the inner retaining frame 5 can be directly attached to the inner surface of the outer static knife 4, which can ensure the support force without increasing the volume or area. The thickness of the inner retaining frame 5 can be determined according to the support force and the material of the inner retaining frame. In order to reduce noise, the inner retaining frame 5 can be made of a wear-resistant hard metal material with damping. Due to the inner retaining frame 5, the rigid outer static knife can be thinned to 2-4.5 wires in actual experiments, breaking the limitation that the rigid outer static knife can only be above 5 wires, and ensuring that the outer static knife will not be tilted and high-maintained during processing and use. The inner retaining frame 5 comprises two side vertical frame surfaces 51 corresponding to the two side vertical surfaces 42, and two cross frame surfaces 52 connecting the end portions of the two side vertical frame surfaces 51, respectively. The end cross section of the inner retaining frame 5 of the present embodiment is in the shape of M corresponding to the end of the M-shaped outer static knife, that is, the cross frame surfaces 52 are integrally connected to the top edge end portions of the two vertical frame surfaces 51 at the front and rear ends, respectively. For a door-shaped outer static knife, the end cross section of the inner retaining frame 5 can be in the shape of a door. The two side vertical frame surfaces 51 can well ensure the flatness of the two side vertical surfaces 42 of the outer static knife, avoid tilting, and improve the connection stability of the outer static knife on the housing, greatly reducing the working vibration and noise, and improving the skin feeling during shaving. The cross frame surfaces 52 can ensure the position stability of the two vertical frame surfaces, and the cross frame surfaces 52 of the present embodiment can also be used as a connecting area, that is, the structures such as slotting are arranged on the inner retaining frame, so as to ensure the integrity of the two end support areas of the ultra-thin outer static knife, and improve the firmness and strength.

[0020] The shaving unit assembly comprises at least one side edge unit assembly mounted on the inner side wall of the housing. In the present embodiment, the long hair guiding grooves on the skin-friendly cutting area of the outer static cutter of the side edge unit assembly are arranged in two rows in the transverse direction. A partition 8 is arranged between the long hair guiding grooves in the row closest to the inner side wall of the housing and the long hair guiding grooves in the adjacent row. The partition 8 causes the two adjacent rows to be arranged with a spacing and not to be continuous. The long hair guiding grooves in the row closest to the inner side wall of the housing on one side of the partition 8 are long hair guiding grooves 6, and the row of long hair guiding grooves on the other side of the partition 8 is used for shaving short hairs. The shape and arrangement of the grooves can be set as required, thereby improving the shaving cleanliness and trimming efficiency and achieving clean trimming in one time. The partition 8 effectively prevents long curly hairs from entering the short hair shaving area, solves the problems of pulling hairs and incomplete shaving in one time, and further improves the touch feeling on the skin surface, thereby improving the shaving feeling. The partition 8 of the present embodiment is a sunken positioning groove. The sunken positioning groove extends along the length direction of the horizontal surface 41 and transversely across the two end support areas 412 on the left and right sides. The cutter head housing and the inner retaining frame 5 are each provided with a limiting part that is adapted to the sunken positioning groove on the left and right ends, thereby making the structure more compact and the connection more compact. The partition also has the functions of positioning, improving strength and resisting deformation. The outer static cutter does not need to be centrally aligned. In the use process, the partition is not easy to move and has low noise. The problems of clamping and pulling hairs are effectively avoided. The long hair guiding groove 6 of the present embodiment is arranged at the junction of the horizontal surface 41 and the side vertical surface 42 of the outer static cutter 4. That is, the long hair guiding groove 6 is connected by a horizontal cutout part 61 on the horizontal surface 41 and a vertical cutout part 62 on the side vertical surface 42. The horizontal cutout part 61 and the vertical cutout part 62 form an "L" shape. The horizontal cutout part 61 and the vertical cutout part 62 are each "V" shaped, trapezoidal, semi-elliptical or semi-circular. The openings of the horizontal cutout part 61 and the vertical cutout part 62 are in abutment. The long hair guiding groove with a large opening is conducive to improving the shaving efficiency. The long hair guiding grooves 6 are uniformly distributed in the length direction of the outer static cutter in the transverse direction. In use, the long hair guiding grooves have a hair combing effect, thereby further improving the hair guiding rate and the shaving efficiency.

[0021] Of course, according to the number of shaving unit assemblies, the arrangement of the number of long hair guide grooves on the outer static cutter skin-friendly cutting area is adjusted, and only the outermost long hair guide groove is horizontally arranged, the arrangement and shape of the middle row of long grooves can be adjusted as needed, such as arranging the long hair guide grooves on the outer static cutter skin-friendly cutting area of the side cutter unit assembly into a single row of horizontal long hair guide grooves 6 (not shown in the figure). The single row of horizontal long hair guide grooves is arranged inwardly away from the intersection of the horizontal surface 41 and the side vertical surface 42, that is, the long hair guide grooves do not penetrate the horizontal surface 41 inwardly. The single row of horizontal long hair guide grooves can also be the double-cut long hair guide groove 6 described above, that is, the long hair guide groove 6 is connected by a horizontal cutting portion 61 located on the horizontal surface 41 and a vertical cutting portion 62 located on the side vertical surface 42. The horizontal cutting portion 61 and the vertical cutting portion 62 form an "L" shape, and the horizontal cutting portion 61 and the vertical cutting portion 62 are both "V" shaped, trapezoidal, semi-elliptical or semi-circular, and the openings of the horizontal cutting portion 61 and the vertical cutting portion 62 are opposite to each other. Thus, in use, long hair can easily extend into the long hair guide groove, effectively avoiding the phenomenon of being stuck, and the moving cutter can cut the material to be cut or remove long hair and short hair, thereby achieving the purpose of cutting or trimming long and short hair, and the operation is convenient and the trimming efficiency is high.

[0022] According to the space requirement of structural design or further strengthening the supporting force, the connection position of the inner retaining frame 5 across the frame surface 52 at both ends and the two vertical frame surfaces 51 can be changed, and the inner retaining frame can also be designed as Figure 4 the second embodiment or Figure 5 the third embodiment shown in the figure. The cross-frame surface 52 is fixed to the two vertical frame surfaces 51, and the position is different, and the supporting direction and stability are also slightly different.

[0023] As Figure 4 shown in the second embodiment of the inner retaining frame, the cross-section of the end of the inner retaining frame is U-shaped, that is, the front and rear ends of the cross-frame surface 52 are integrally connected to the top edge ends of the two vertical frame surfaces 51, which is a top space, which has the same supporting effect as the first embodiment for the outer static cutter.

[0024] Figure 5 As shown in the third embodiment of the inner retaining frame, the inner retaining frame is in the form of a closed fence, 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. The inner retaining frame of this embodiment provides higher flat support for the two side vertical surfaces 42 of the outer static cutter, and the position between the two side vertical surfaces 42 is limited by the cross-frame surface 52 after assembly. Even if the two side vertical surfaces are thin, they will not be able to bounce, and have stable support, but the disadvantage is that they need to be precisely matched, and there is no compatibility.

[0025] If the space or structure allows, of course, the cross-frame surface 52 of the inner retaining frame in the above three or two embodiments can also be provided, and the supporting effect is higher.

[0026] While the application has been disclosed in connection with specific embodiments thereof, it will be evident to those skilled in the art that many modifications, additions and substitutions can be made to the application without departing from the spirit and scope of the application. It is therefore intended to cover in the appended claims all such modifications that are within the scope of this application as disclosed in the specification and all equivalent arrangements.

Claims

1. A shaving head structure for a reciprocating shaver, comprising a shaving head housing (1) and one or more shaving unit assemblies mounted on the shaving head housing, characterized in that: The shaving unit assembly comprises a moving cutter holder (2) mounted in the cutter head housing (1) and driven by a driving shaft to move transversely and reciprocally, a moving cutter (3) mounted on the moving cutter holder (2) and capable of moving reciprocally along the length direction during use, and an outer static cutter (4) in the shape of a long strip and arranged transversely above the moving cutter (3) by bending a thin plate, wherein the outer static cutter (4) comprises a bent and integrally formed horizontal surface (41) and two side vertical surfaces (42) respectively extending downward along the front and rear long edges of the horizontal surface (41), the horizontal surface (41) is provided with a skin-friendly cutting area (411) having a plurality of long hair inlet grooves, and two end supporting areas (412) are respectively arranged at the left and right ends of the skin-friendly cutting area (411), a self-supporting connecting ring is formed by the two end supporting areas (412) and the two side vertical surfaces (42) on the outer static cutter (4), the skin-friendly cutting area (411) is enclosed in the middle by the self-supporting connecting ring, and an inner retaining frame (5) is arranged on the outer static cutter (4) and corresponds to the outer ring of the self-supporting connecting ring and is away from the skin-friendly cutting area, the inner retaining frame (5) is directly attached to the inner surface of the outer static cutter (4) or is fixed to the cutter head housing (1) through a connecting structure, so as to form a double-layer reinforced support on the outer ring of the outer static cutter, the inner retaining frame (5) comprises two side vertical frame surfaces (51) corresponding to the two side vertical surfaces (42) and extending transversely, and two cross frame surfaces (52) respectively connecting the end portions of the two side vertical frame surfaces (51), the end cross section of the inner retaining frame (5) is in the shape of M or a door, that is, the top edge end portions of the two cross frame surfaces (52) are integrally connected to the two vertical frame surfaces (51) respectively, or the end cross section of the inner retaining frame is in the shape of U, that is, the lower top edge end portions of the two cross frame surfaces (52) are integrally connected to the two vertical frame surfaces (51) respectively, or the inner retaining frame is in the shape of a closed fence, that is, the left and right end vertical edges of the two cross frame surfaces (52) are integrally connected to the two vertical frame surfaces (51) respectively.

2. A head structure for a reciprocating shaver according to claim 1, characterized in that: The shaving unit assembly comprises at least one side cutter unit assembly mounted on the inner side wall of the housing, the long hair inlet grooves on the skin-friendly cutting area of the outer static cutter of the side cutter unit assembly are arranged in multiple rows transversely, and a separation strip (8) is arranged between the long hair inlet grooves of the most inner row and the long hair inlet grooves of the adjacent row, so that the two adjacent rows are arranged with spacing and are not connected.

3. A head structure for a reciprocating shaver according to claim 2, characterized in that: The long hair inlet grooves of the most inner row are long hair guide grooves (6), the long hair guide grooves are arranged at the junction of the horizontal surface (41) and the side vertical surface (42) of the outer static cutter (4), that is, the long hair guide grooves (6) are connected by a horizontal cut portion (61) on the horizontal surface (41) and a vertical cut portion (62) on the side vertical surface (42), the horizontal cut portion (61) and the vertical cut portion (62) form an "L" shape, the horizontal cut portion (61) and the vertical cut portion (62) are in the shape of "V", trapezoidal or semi-elliptical, and the openings of the horizontal cut portion (61) and the vertical cut portion (62) are opposite to each other.

4. The head structure of a reciprocating shaver according to claim 2, characterized in that: The long hair guide groove (6) is arranged at the junction of the horizontal surface (41) and the side vertical surface (42) of the outer stationary blade (4), that is, the long hair guide groove (6) is connected by a horizontal cutout part (61) on the horizontal surface (41) and a vertical cutout part (62) on the side vertical surface (42), the horizontal cutout part (61) and the vertical cutout part (62) form an "L" shape, the horizontal cutout part (61) and the vertical cutout part (62) are both semicircular, and the openings of the horizontal cutout part (61) and the vertical cutout part (62) are opposite to each other.

5. A head structure for a reciprocating shaver according to claim 3 or 4, characterized in that: The long hair guide groove (6) is arranged at the junction of the horizontal surface (41) and the side vertical surface (42) of the outer stationary blade (4), that is, the long hair guide groove (6) is connected by a horizontal cutout part (61) on the horizontal surface (41) and a vertical cutout part (62) on the side vertical surface (42), the horizontal cutout part (61) and the vertical cutout part (62) form an "L" shape, the horizontal cutout part (61) and the vertical cutout part (62) are both semicircular, and the openings of the horizontal cutout part (61) and the vertical cutout part (62) are opposite to each other.

6. A head structure for a reciprocating shaver according to claim 2 or 3 or 4, characterized in that: The sink positioning groove is extended along the length direction of the horizontal surface (41) and transversely across the two end supporting areas (412) on the left and right, respectively, and the outer shell of the cutter head is provided with a limiting part on the left and right ends, respectively, which is matched with the sink positioning groove.

7. The head structure of a reciprocating shaver according to claim 5, characterized in that: The sink positioning groove is extended along the length direction of the horizontal surface (41) and transversely across the two end supporting areas (412) on the left and right, respectively, and the outer shell of the cutter head is provided with a limiting part on the left and right ends, respectively, which is matched with the sink positioning groove.

8. The head structure of a reciprocating shaver according to claim 1, characterized in that: The shaving cutter unit assembly comprises at least one side cutter unit assembly mounted on the inner side wall of the outer shell, and a plurality of long hair guide grooves on the skin-friendly cutting area of the outer stationary blade of the side cutter unit assembly are arranged in a single row in a transverse direction, and the deepest position of the long hair guide grooves towards the inside is away from the junction of the horizontal surface (41) and the side vertical surface (42), that is, the long hair guide grooves do not penetrate the horizontal surface (41) towards the inside.

9. The head structure of a reciprocating shaver according to claim 8, characterized in that: The long hair guide groove (6) is arranged at the junction of the horizontal surface (41) and the side vertical surface (42) of the outer stationary blade (4), that is, the long hair guide groove (6) is connected by a horizontal cutout part (61) on the horizontal surface (41) and a vertical cutout part (62) on the side vertical surface (42), the horizontal cutout part (61) and the vertical cutout part (62) form an "L" shape, the horizontal cutout part (61) and the vertical cutout part (62) are both semicircular, and the openings of the horizontal cutout part (61) and the vertical cutout part (62) are opposite to each other.

10. The head structure of a reciprocating shaver according to claim 8, characterized in that: The long hair guide groove (6) is arranged at the junction of the horizontal surface (41) and the side vertical surface (42) of the outer stationary blade (4), that is, the long hair guide groove (6) is connected by a horizontal cutout part (61) on the horizontal surface (41) and a vertical cutout part (62) on the side vertical surface (42), the horizontal cutout part (61) and the vertical cutout part (62) form an "L" shape, the horizontal cutout part (61) and the vertical cutout part (62) are both semicircular, and the openings of the horizontal cutout part (61) and the vertical cutout part (62) are opposite to each other.

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